/* roulang page: index */
:root {
            --primary: #101512;
            --primary-light: #1c241e;
            --accent: #B8E86A;
            --accent-dark: #9ed04e;
            --gold: #E5C07B;
            --bg-warm: #F5F3EE;
            --text-primary: #1A1D1B;
            --text-secondary: #6A706C;
            --border-color: #E1DED6;
            --success-green: #2DAF64;
            --warning-red: #E95D3F;
            --radius-sm: 4px;
            --radius-md: 6px;
            --radius-lg: 8px;
            --shadow-sm: 0 1px 2px rgba(16, 21, 18, 0.05);
            --shadow-md: 0 8px 24px rgba(16, 21, 18, 0.08);
            --shadow-lg: 0 14px 32px rgba(16, 21, 18, 0.12);
            --sidebar-width: 260px;
            --header-height: 72px;
            --mobile-header-height: 64px;
            --transition-base: 0.25s ease;
            --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", "Helvetica Neue", Arial, sans-serif;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.75;
            color: var(--text-primary);
            background-color: var(--bg-warm);
            margin: 0;
            padding: 0;
            overflow-x: hidden;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        a {
            color: var(--text-primary);
            text-decoration: none;
            transition: color var(--transition-base);
        }
        a:hover,
        a:focus {
            color: var(--accent-dark);
            outline: none;
        }
        a:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 3px;
            border-radius: var(--radius-sm);
        }

        button,
        input {
            font-family: var(--font-sans);
        }
        button:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

        h1,
        h2,
        h3,
        h4,
        h5 {
            font-family: var(--font-sans);
            font-weight: 700;
            line-height: 1.2;
            color: var(--primary);
            margin: 0 0 0.75rem;
        }

        h1 {
            font-size: 56px;
            line-height: 1.08;
            font-weight: 700;
            letter-spacing: -0.01em;
        }
        h2 {
            font-size: 40px;
            line-height: 1.15;
            font-weight: 700;
        }
        h3 {
            font-size: 26px;
            line-height: 1.25;
            font-weight: 650;
        }
        p {
            margin: 0 0 1rem;
            max-width: 70ch;
        }

        .container-wide {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 32px;
        }

        /* ===== Sidebar Navigation ===== */
        .app-sidebar {
            position: fixed;
            left: 0;
            top: 0;
            width: var(--sidebar-width);
            height: 100vh;
            background-color: var(--primary);
            color: #F5F3EE;
            z-index: 1000;
            display: flex;
            flex-direction: column;
            transition: transform 0.3s ease;
        }
        .sidebar-logo {
            height: var(--header-height);
            display: flex;
            align-items: center;
            padding: 0 24px;
            border-bottom: 1px solid rgba(245, 243, 238, 0.08);
            flex-shrink: 0;
        }
        .sidebar-logo a {
            font-size: 20px;
            font-weight: 700;
            color: #F5F3EE;
            letter-spacing: 0.02em;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .sidebar-logo a:hover {
            color: var(--accent);
        }
        .sidebar-logo .logo-badge {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            background: var(--accent);
            color: var(--primary);
            border-radius: var(--radius-md);
            font-size: 16px;
            font-weight: 700;
            flex-shrink: 0;
        }
        .sidebar-nav {
            flex: 1;
            padding: 24px 12px;
            overflow-y: auto;
        }
        .sidebar-nav .nav-label {
            font-size: 12px;
            text-transform: uppercase;
            letter-spacing: 0.1em;
            color: rgba(245, 243, 238, 0.5);
            padding: 0 12px;
            margin-bottom: 12px;
            font-weight: 500;
        }
        .sidebar-nav ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .sidebar-nav li {
            margin-bottom: 2px;
        }
        .sidebar-nav a {
            display: flex;
            align-items: center;
            padding: 12px 16px;
            color: rgba(245, 243, 238, 0.85);
            font-size: 15px;
            font-weight: 500;
            border-radius: var(--radius-sm);
            position: relative;
            transition: all var(--transition-base);
            letter-spacing: 0.01em;
        }
        .sidebar-nav a:hover {
            background: rgba(184, 232, 106, 0.08);
            color: #F5F3EE;
        }
        .sidebar-nav a.active {
            color: var(--accent);
            background: rgba(184, 232, 106, 0.12);
        }
        .sidebar-nav a.active::before {
            content: '';
            position: absolute;
            left: -12px;
            top: 50%;
            transform: translateY(-50%);
            width: 3px;
            height: 28px;
            background: var(--accent);
            border-radius: 0 2px 2px 0;
        }
        .sidebar-nav a .nav-icon {
            margin-right: 12px;
            font-size: 16px;
            opacity: 0.7;
            flex-shrink: 0;
        }
        .sidebar-footer {
            padding: 20px 16px;
            border-top: 1px solid rgba(245, 243, 238, 0.08);
            flex-shrink: 0;
        }
        .sidebar-login-btn {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            width: 100%;
            padding: 10px 16px;
            background: transparent;
            border: 1px solid rgba(245, 243, 238, 0.3);
            color: #F5F3EE;
            border-radius: var(--radius-sm);
            font-size: 14px;
            font-weight: 500;
            cursor: pointer;
            transition: all var(--transition-base);
            text-align: center;
        }
        .sidebar-login-btn:hover {
            background: rgba(184, 232, 106, 0.12);
            border-color: var(--accent);
            color: var(--accent);
        }

        /* ===== Main Content ===== */
        .main-content {
            margin-left: var(--sidebar-width);
            min-height: 100vh;
            background: var(--bg-warm);
        }

        /* ===== Mobile Header ===== */
        .mobile-header {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: var(--mobile-header-height);
            background: var(--primary);
            z-index: 999;
            align-items: center;
            padding: 0 16px;
            justify-content: space-between;
        }
        .mobile-header .mobile-logo {
            font-size: 17px;
            font-weight: 700;
            color: #F5F3EE;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .mobile-header .mobile-logo .logo-badge {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 28px;
            height: 28px;
            background: var(--accent);
            color: var(--primary);
            border-radius: var(--radius-sm);
            font-size: 13px;
            font-weight: 700;
        }
        .hamburger-btn {
            background: transparent;
            border: none;
            padding: 8px;
            cursor: pointer;
            display: flex;
            flex-direction: column;
            gap: 5px;
            z-index: 1002;
        }
        .hamburger-btn span {
            display: block;
            width: 22px;
            height: 2px;
            background: #F5F3EE;
            border-radius: 2px;
            transition: all 0.3s ease;
        }
        .hamburger-btn.active span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .hamburger-btn.active span:nth-child(2) {
            opacity: 0;
        }
        .hamburger-btn.active span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }
        .mobile-overlay {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(16, 21, 18, 0.55);
            z-index: 998;
            opacity: 0;
            transition: opacity 0.3s ease;
        }
        .mobile-overlay.show {
            opacity: 1;
        }

        /* ===== Hero Section ===== */
        .hero-section {
            position: relative;
            min-height: 90vh;
            display: flex;
            align-items: center;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            overflow: hidden;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(16, 21, 18, 0.42) 0%, rgba(16, 21, 18, 0.62) 55%, rgba(16, 21, 18, 0.82) 100%);
            z-index: 1;
        }
        .hero-bg-zoom {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            animation: heroZoom 6s ease-out forwards;
            z-index: 0;
        }
        @keyframes heroZoom {
            from {
                transform: scale(1);
            }
            to {
                transform: scale(1.05);
            }
        }
        .hero-content {
            position: relative;
            z-index: 2;
            padding: 120px 0 80px;
            width: 100%;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(184, 232, 106, 0.16);
            border: 1px solid rgba(184, 232, 106, 0.4);
            color: var(--accent);
            font-size: 13px;
            font-weight: 600;
            padding: 8px 16px;
            border-radius: 50px;
            letter-spacing: 0.06em;
            margin-bottom: 24px;
        }
        .hero-badge .dot {
            width: 7px;
            height: 7px;
            background: var(--accent);
            border-radius: 50%;
            animation: pulseDot 1.6s ease-in-out infinite;
        }
        @keyframes pulseDot {
            0%,
            100% {
                opacity: 1;
                transform: scale(1);
            }
            50% {
                opacity: 0.4;
                transform: scale(0.7);
            }
        }
        .hero-title {
            color: #F5F3EE;
            font-size: 64px;
            font-weight: 700;
            line-height: 1.08;
            margin-bottom: 20px;
            max-width: 680px;
            letter-spacing: -0.015em;
        }
        .hero-subtitle {
            color: rgba(245, 243, 238, 0.85);
            font-size: 20px;
            line-height: 1.7;
            max-width: 620px;
            margin-bottom: 12px;
            font-weight: 400;
        }
        .hero-aux-text {
            color: rgba(245, 243, 238, 0.6);
            font-size: 15px;
            line-height: 1.6;
            max-width: 520px;
            margin-bottom: 32px;
        }
        .hero-cta-row {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            margin-bottom: 32px;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 14px 28px;
            background: var(--primary);
            color: #F5F3EE;
            border: none;
            border-radius: var(--radius-sm);
            font-size: 16px;
            font-weight: 600;
            cursor: pointer;
            transition: all var(--transition-base);
            letter-spacing: 0.02em;
            text-align: center;
            text-decoration: none;
        }
        .btn-primary:hover {
            background: var(--accent);
            color: var(--primary);
        }
        .btn-primary:active {
            transform: scale(0.97);
        }
        .btn-outline-light {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 13px 27px;
            background: transparent;
            color: #F5F3EE;
            border: 1px solid #F5F3EE;
            border-radius: var(--radius-sm);
            font-size: 16px;
            font-weight: 600;
            cursor: pointer;
            transition: all var(--transition-base);
            text-align: center;
            text-decoration: none;
        }
        .btn-outline-light:hover {
            background: var(--accent);
            border-color: var(--accent);
            color: var(--primary);
        }
        .btn-outline-light:active {
            transform: scale(0.97);
        }

        .hero-countdown-box {
            background: rgba(16, 21, 18, 0.55);
            backdrop-filter: blur(10px);
            border: 1px solid rgba(184, 232, 106, 0.3);
            border-radius: var(--radius-lg);
            padding: 20px 24px;
            max-width: 420px;
            margin-bottom: 16px;
        }
        .countdown-label {
            font-size: 13px;
            font-weight: 600;
            color: var(--accent);
            letter-spacing: 0.08em;
            margin-bottom: 12px;
            text-transform: uppercase;
        }
        .countdown-timer {
            display: flex;
            gap: 12px;
            align-items: center;
        }
        .countdown-unit {
            text-align: center;
            min-width: 56px;
        }
        .countdown-number {
            font-size: 32px;
            font-weight: 700;
            color: #F5F3EE;
            line-height: 1;
            font-variant-numeric: tabular-nums;
        }
        .countdown-unit-label {
            font-size: 11px;
            color: rgba(245, 243, 238, 0.6);
            letter-spacing: 0.05em;
            margin-top: 4px;
        }
        .countdown-separator {
            font-size: 28px;
            color: var(--accent);
            font-weight: 700;
            line-height: 1;
            padding-bottom: 18px;
        }
        .hero-reminder-form {
            display: flex;
            gap: 10px;
            flex-wrap: wrap;
            margin-top: 16px;
        }
        .hero-reminder-form input {
            flex: 1;
            min-width: 200px;
            padding: 12px 16px;
            border: 1px solid rgba(245, 243, 238, 0.3);
            border-radius: var(--radius-sm);
            background: rgba(16, 21, 18, 0.4);
            color: #F5F3EE;
            font-size: 14px;
            transition: all var(--transition-base);
        }
        .hero-reminder-form input::placeholder {
            color: rgba(245, 243, 238, 0.5);
        }
        .hero-reminder-form input:focus {
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(184, 232, 106, 0.15);
            outline: none;
        }
        .hero-reminder-form button {
            padding: 12px 20px;
            background: var(--accent);
            color: var(--primary);
            border: none;
            border-radius: var(--radius-sm);
            font-size: 14px;
            font-weight: 600;
            cursor: pointer;
            transition: all var(--transition-base);
            white-space: nowrap;
        }
        .hero-reminder-form button:hover {
            background: #c8ee7d;
        }
        .hero-reminder-form button:active {
            transform: scale(0.97);
        }

        .hero-scroll-hint {
            position: absolute;
            bottom: 28px;
            left: 50%;
            transform: translateX(-50%);
            z-index: 2;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 6px;
            color: rgba(245, 243, 238, 0.7);
            font-size: 12px;
            letter-spacing: 0.08em;
            animation: scrollBounce 2s ease-in-out infinite;
        }
        .hero-scroll-hint .arrow-down {
            width: 18px;
            height: 18px;
            border-right: 2px solid rgba(245, 243, 238, 0.7);
            border-bottom: 2px solid rgba(245, 243, 238, 0.7);
            transform: rotate(45deg);
        }
        @keyframes scrollBounce {
            0%,
            100% {
                transform: translateX(-50%) translateY(0);
            }
            50% {
                transform: translateX(-50%) translateY(8px);
            }
        }

        /* ===== Data Bar ===== */
        .data-bar-section {
            background: var(--primary);
            padding: 36px 0;
            border-bottom: 1px solid rgba(245, 243, 238, 0.06);
        }
        .data-bar-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .data-item {
            text-align: center;
            padding: 8px 16px;
        }
        .data-number {
            font-size: 36px;
            font-weight: 700;
            color: var(--accent);
            line-height: 1.1;
            font-variant-numeric: tabular-nums;
        }
        .data-label {
            font-size: 13px;
            color: rgba(245, 243, 238, 0.65);
            letter-spacing: 0.06em;
            margin-top: 6px;
            font-weight: 500;
        }

        /* ===== Section Base ===== */
        .section-block {
            padding: 96px 0;
        }
        .section-block.dark {
            background: var(--primary);
            color: #F5F3EE;
        }
        .section-block.dark h2,
        .section-block.dark h3,
        .section-block.dark .section-heading {
            color: #F5F3EE;
        }
        .section-block.warm {
            background: var(--bg-warm);
        }
        .section-block.white-bg {
            background: #fff;
        }

        .section-heading {
            margin-bottom: 48px;
        }
        .section-heading .section-tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            color: var(--accent-dark);
            background: rgba(184, 232, 106, 0.15);
            border: 1px solid rgba(184, 232, 106, 0.35);
            padding: 6px 14px;
            border-radius: 50px;
            letter-spacing: 0.08em;
            margin-bottom: 16px;
            text-transform: uppercase;
        }
        .section-heading h2 {
            margin-bottom: 12px;
        }
        .section-heading .section-desc {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.7;
            max-width: 600px;
        }
        .section-block.dark .section-heading .section-desc {
            color: rgba(245, 243, 238, 0.7);
        }

        /* ===== Feature Grid (Asymmetric 2/1) ===== */
        .feature-grid-asym {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 24px;
        }
        .feature-card {
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 28px 28px 24px;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-base);
            cursor: default;
            position: relative;
            overflow: hidden;
        }
        .feature-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
            border-color: rgba(184, 232, 106, 0.5);
        }
        .feature-card::after {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--accent), var(--gold));
            opacity: 0;
            transition: opacity var(--transition-base);
        }
        .feature-card:hover::after {
            opacity: 1;
        }
        .feature-card .feature-icon {
            width: 48px;
            height: 48px;
            background: rgba(184, 232, 106, 0.15);
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            margin-bottom: 16px;
        }
        .feature-card h3 {
            font-size: 20px;
            margin-bottom: 8px;
            font-weight: 650;
        }
        .feature-card p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 0;
        }
        .feature-card.large {
            padding: 36px 32px;
        }
        .feature-card.large h3 {
            font-size: 24px;
        }
        .feature-card.large p {
            font-size: 16px;
        }
        .feature-sub-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }

        /* ===== Use Case Layered ===== */
        .usecase-layered {
            display: flex;
            flex-direction: column;
            gap: 48px;
        }
        .usecase-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }
        .usecase-row.reverse {
            direction: rtl;
        }
        .usecase-row.reverse>* {
            direction: ltr;
        }
        .usecase-image-wrapper {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            position: relative;
        }
        .usecase-image-wrapper img {
            width: 100%;
            aspect-ratio: 16/10;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .usecase-image-wrapper:hover img {
            transform: scale(1.03);
        }
        .usecase-image-wrapper .img-tag {
            position: absolute;
            top: 16px;
            left: 16px;
            background: rgba(16, 21, 18, 0.7);
            color: #F5F3EE;
            font-size: 12px;
            font-weight: 600;
            padding: 6px 14px;
            border-radius: 50px;
            letter-spacing: 0.06em;
            backdrop-filter: blur(4px);
        }
        .usecase-text h3 {
            font-size: 28px;
            margin-bottom: 12px;
        }
        .usecase-text p {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.75;
            margin-bottom: 16px;
        }
        .usecase-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .usecase-list li {
            font-size: 15px;
            color: var(--text-primary);
            padding: 6px 0;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .usecase-list li::before {
            content: '✓';
            color: var(--success-green);
            font-weight: 700;
            font-size: 14px;
            flex-shrink: 0;
        }
        .usecase-wide {
            grid-column: 1 / -1;
        }

        /* ===== Case Study ===== */
        .case-study-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .case-card {
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 28px;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-base);
        }
        .case-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
        }
        .case-card .case-tag {
            display: inline-block;
            font-size: 12px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 50px;
            letter-spacing: 0.06em;
            margin-bottom: 14px;
            background: rgba(184, 232, 106, 0.15);
            color: #55801e;
        }
        .case-card h3 {
            font-size: 20px;
            margin-bottom: 8px;
        }
        .case-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 16px;
        }
        .case-card .case-result {
            font-size: 14px;
            font-weight: 650;
            color: var(--success-green);
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .case-card.dark-style {
            background: var(--primary-light);
            border-color: rgba(245, 243, 238, 0.1);
            color: #F5F3EE;
        }
        .case-card.dark-style h3 {
            color: #F5F3EE;
        }
        .case-card.dark-style p {
            color: rgba(245, 243, 238, 0.7);
        }
        .case-card.dark-style .case-tag {
            background: rgba(184, 232, 106, 0.2);
            color: var(--accent);
        }

        /* ===== Brand Introduction ===== */
        .brand-intro-block {
            background: linear-gradient(135deg, #1a211c 0%, #101512 100%);
            border-radius: var(--radius-lg);
            padding: 48px 56px;
            color: #F5F3EE;
            position: relative;
            overflow: hidden;
        }
        .brand-intro-block::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 220px;
            height: 220px;
            border-radius: 50%;
            background: rgba(184, 232, 106, 0.08);
        }
        .brand-intro-block h2 {
            color: #F5F3EE;
            margin-bottom: 16px;
            position: relative;
            z-index: 1;
        }
        .brand-intro-block p {
            color: rgba(245, 243, 238, 0.82);
            line-height: 1.85;
            font-size: 16px;
            max-width: 880px;
            position: relative;
            z-index: 1;
            margin-bottom: 12px;
        }
        .brand-intro-block p:last-child {
            margin-bottom: 0;
        }

        /* ===== Deep Content Area ===== */
        .deep-content {
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 48px 56px;
            box-shadow: var(--shadow-sm);
            margin-bottom: 32px;
        }
        .deep-content h3 {
            font-size: 26px;
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .deep-content h3 .deep-icon {
            width: 40px;
            height: 40px;
            background: rgba(184, 232, 106, 0.2);
            border-radius: var(--radius-sm);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            flex-shrink: 0;
        }
        .deep-content p {
            font-size: 15px;
            line-height: 1.85;
            color: var(--text-secondary);
            margin-bottom: 12px;
            max-width: 780px;
        }
        .deep-content p:last-child {
            margin-bottom: 0;
        }
        .deep-content .highlight-list {
            list-style: none;
            padding: 0;
            margin: 16px 0 0;
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }
        .deep-content .highlight-list li {
            background: rgba(184, 232, 106, 0.12);
            border: 1px solid rgba(184, 232, 106, 0.3);
            border-radius: var(--radius-sm);
            padding: 8px 16px;
            font-size: 13px;
            font-weight: 500;
            color: var(--primary);
            letter-spacing: 0.03em;
        }

        /* ===== Pricing ===== */
        .pricing-layout {
            display: grid;
            grid-template-columns: 0.9fr 1.2fr 0.9fr;
            gap: 20px;
            align-items: stretch;
        }
        .price-card {
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
        }
        .price-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }
        .price-card.featured {
            background: var(--primary);
            border-color: var(--primary);
            color: #F5F3EE;
            box-shadow: var(--shadow-lg);
            transform: scale(1.03);
            position: relative;
            z-index: 1;
        }
        .price-card.featured:hover {
            transform: scale(1.03) translateY(-3px);
        }
        .price-card.featured h3 {
            color: #F5F3EE;
        }
        .price-card.featured .price-value {
            color: var(--accent);
        }
        .price-card.featured .price-period {
            color: rgba(245, 243, 238, 0.6);
        }
        .price-card .price-badge {
            display: inline-block;
            font-size: 11px;
            font-weight: 650;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            background: rgba(184, 232, 106, 0.2);
            color: var(--accent-dark);
            padding: 4px 10px;
            border-radius: 50px;
            margin-bottom: 12px;
        }
        .price-card.featured .price-badge {
            background: rgba(184, 232, 106, 0.25);
            color: var(--accent);
        }
        .price-card h3 {
            font-size: 22px;
            margin-bottom: 8px;
        }
        .price-value {
            font-size: 36px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.1;
            margin-bottom: 4px;
            font-variant-numeric: tabular-nums;
        }
        .price-period {
            font-size: 13px;
            color: var(--text-secondary);
            margin-bottom: 20px;
        }
        .price-features {
            list-style: none;
            padding: 0;
            margin: 0 0 24px;
            flex: 1;
        }
        .price-features li {
            font-size: 14px;
            padding: 6px 0;
            display: flex;
            align-items: flex-start;
            gap: 8px;
            color: var(--text-primary);
        }
        .price-card.featured .price-features li {
            color: rgba(245, 243, 238, 0.85);
        }
        .price-features li::before {
            content: '✓';
            color: var(--success-green);
            font-weight: 700;
            font-size: 12px;
            flex-shrink: 0;
            margin-top: 3px;
        }
        .price-card.featured .price-features li::before {
            color: var(--accent);
        }
        .btn-price {
            display: block;
            width: 100%;
            padding: 12px 20px;
            text-align: center;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 600;
            cursor: pointer;
            transition: all var(--transition-base);
            border: 1px solid var(--primary);
            background: transparent;
            color: var(--primary);
            text-decoration: none;
        }
        .btn-price:hover {
            background: var(--accent);
            border-color: var(--accent);
            color: var(--primary);
        }
        .btn-price:active {
            transform: scale(0.97);
        }
        .price-card.featured .btn-price {
            background: var(--accent);
            border-color: var(--accent);
            color: var(--primary);
        }
        .price-card.featured .btn-price:hover {
            background: #c8ee7d;
        }

        /* ===== News Center ===== */
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .news-card-horizontal {
            display: flex;
            gap: 20px;
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 20px;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-base);
            align-items: center;
        }
        .news-card-horizontal:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
            border-color: rgba(184, 232, 106, 0.5);
        }
        .news-date-col {
            flex-shrink: 0;
            width: 80px;
            text-align: center;
            display: flex;
            flex-direction: column;
            justify-content: center;
            padding-right: 16px;
            border-right: 1px solid var(--border-color);
        }
        .news-date-col .news-day {
            font-size: 28px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1;
        }
        .news-date-col .news-month {
            font-size: 13px;
            color: var(--text-secondary);
            letter-spacing: 0.08em;
            font-weight: 500;
            margin-top: 4px;
        }
        .news-body {
            flex: 1;
        }
        .news-body h3 {
            font-size: 18px;
            margin-bottom: 6px;
            font-weight: 650;
        }
        .news-body h3 a {
            color: var(--primary);
            transition: color var(--transition-base);
        }
        .news-body h3 a:hover {
            color: var(--accent-dark);
        }
        .news-body p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
            margin-bottom: 8px;
            max-width: 700px;
        }
        .news-readmore {
            font-size: 13px;
            font-weight: 600;
            color: var(--accent-dark);
            text-decoration: underline;
            cursor: pointer;
            transition: color var(--transition-base);
        }
        .news-readmore:hover {
            color: var(--primary);
        }
        .news-thumb {
            flex-shrink: 0;
            width: 160px;
            height: 100px;
            border-radius: var(--radius-md);
            overflow: hidden;
            flex-shrink: 0;
        }
        .news-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .news-card-horizontal:hover .news-thumb img {
            transform: scale(1.03);
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 760px;
            margin: 0 auto;
        }
        .faq-item {
            border-top: 1px solid var(--border-color);
        }
        .faq-item:last-child {
            border-bottom: 1px solid var(--border-color);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 20px 4px;
            cursor: pointer;
            font-size: 18px;
            font-weight: 650;
            color: var(--primary);
            transition: color var(--transition-base);
            gap: 16px;
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            font-family: var(--font-sans);
        }
        .faq-question:hover {
            color: var(--accent-dark);
        }
        .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(184, 232, 106, 0.15);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 700;
            color: var(--accent-dark);
            transition: transform 0.25s ease;
        }
        .faq-item.open .faq-icon {
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.25s ease, padding 0.25s ease;
            padding: 0 4px;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 4px 20px;
        }
        .faq-answer p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
            max-width: 720px;
        }

        /* ===== CTA / Subscribe ===== */
        .cta-section {
            background: var(--primary);
            padding: 64px 0;
            text-align: center;
            border-radius: 0;
        }
        .cta-section h2 {
            color: #F5F3EE;
            margin-bottom: 12px;
        }
        .cta-section p {
            color: rgba(245, 243, 238, 0.7);
            font-size: 16px;
            margin-bottom: 24px;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
        }
        .subscribe-form {
            display: flex;
            gap: 10px;
            max-width: 480px;
            margin: 0 auto;
            flex-wrap: wrap;
            justify-content: center;
        }
        .subscribe-form input {
            flex: 1;
            min-width: 220px;
            padding: 13px 18px;
            border: 1px solid rgba(245, 243, 238, 0.25);
            border-radius: var(--radius-sm);
            background: rgba(16, 21, 18, 0.4);
            color: #F5F3EE;
            font-size: 15px;
            transition: all var(--transition-base);
        }
        .subscribe-form input::placeholder {
            color: rgba(245, 243, 238, 0.45);
        }
        .subscribe-form input:focus {
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(184, 232, 106, 0.15);
            outline: none;
        }
        .subscribe-form button {
            padding: 13px 26px;
            background: var(--accent);
            color: var(--primary);
            border: none;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 600;
            cursor: pointer;
            transition: all var(--transition-base);
            white-space: nowrap;
        }
        .subscribe-form button:hover {
            background: #c8ee7d;
        }
        .subscribe-form button:active {
            transform: scale(0.97);
        }

        /* ===== Footer ===== */
        .footer-section {
            background: var(--primary);
            color: #F5F3EE;
            padding: 56px 0 24px;
            border-top: 1px solid rgba(245, 243, 238, 0.08);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand p {
            color: rgba(245, 243, 238, 0.6);
            font-size: 14px;
            line-height: 1.7;
            margin-bottom: 0;
            max-width: 300px;
        }
        .footer-brand .footer-logo {
            font-size: 20px;
            font-weight: 700;
            color: #F5F3EE;
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 12px;
        }
        .footer-brand .footer-logo .logo-badge {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 32px;
            height: 32px;
            background: var(--accent);
            color: var(--primary);
            border-radius: var(--radius-sm);
            font-size: 14px;
            font-weight: 700;
        }
        .footer-col h4 {
            color: #F5F3EE;
            font-size: 15px;
            font-weight: 650;
            letter-spacing: 0.06em;
            margin-bottom: 16px;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-col li {
            margin-bottom: 8px;
        }
        .footer-col a {
            color: rgba(245, 243, 238, 0.6);
            font-size: 14px;
            transition: color var(--transition-base);
        }
        .footer-col a:hover {
            color: var(--accent);
        }
        .footer-bottom {
            border-top: 1px solid rgba(245, 243, 238, 0.08);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            font-size: 13px;
            color: rgba(245, 243, 238, 0.5);
        }
        .footer-bottom a {
            color: rgba(245, 243, 238, 0.5);
            text-decoration: underline;
            transition: color var(--transition-base);
        }
        .footer-bottom a:hover {
            color: var(--accent);
        }
        .footer-beian {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            align-items: center;
        }

        /* ===== Entrance Grid (Brand Store) ===== */
        .entrance-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .entrance-card {
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-base);
            text-align: center;
        }
        .entrance-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
            border-color: rgba(184, 232, 106, 0.5);
        }
        .entrance-card .entrance-icon {
            font-size: 32px;
            margin-bottom: 12px;
        }
        .entrance-card h3 {
            font-size: 19px;
            margin-bottom: 8px;
        }
        .entrance-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.65;
            margin-bottom: 12px;
        }
        .entrance-card a {
            font-size: 14px;
            font-weight: 600;
            color: var(--accent-dark);
            text-decoration: underline;
            transition: color var(--transition-base);
        }
        .entrance-card a:hover {
            color: var(--primary);
        }

        /* ===== Scene Demo ===== */
        .scene-demo-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }
        .scene-steps {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .scene-step {
            display: flex;
            gap: 16px;
            align-items: flex-start;
        }
        .scene-step .step-num {
            flex-shrink: 0;
            width: 36px;
            height: 36px;
            background: var(--accent);
            color: var(--primary);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 16px;
        }
        .scene-step h4 {
            font-size: 17px;
            font-weight: 650;
            margin-bottom: 4px;
        }
        .scene-step p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.65;
            margin-bottom: 0;
        }
        .scene-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
        }
        .scene-image img {
            width: 100%;
            aspect-ratio: 16/11;
            object-fit: cover;
        }

        /* ===== Animations ===== */
        .fade-up {
            opacity: 0;
            transform: translateY(12px);
            animation: fadeUp 0.4s ease forwards;
        }
        .fade-up:nth-child(2) {
            animation-delay: 0.08s;
        }
        .fade-up:nth-child(3) {
            animation-delay: 0.16s;
        }
        .fade-up:nth-child(4) {
            animation-delay: 0.24s;
        }
        .fade-up:nth-child(5) {
            animation-delay: 0.32s;
        }
        .fade-up:nth-child(6) {
            animation-delay: 0.4s;
        }
        @keyframes fadeUp {
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        @media (prefers-reduced-motion: reduce) {
            *,
            *::before,
            *::after {
                animation-duration: 0.01ms !important;
                animation-iteration-count: 1 !important;
                transition-duration: 0.01ms !important;
            }
            html {
                scroll-behavior: auto;
            }
            .hero-bg-zoom {
                animation: none;
                transform: scale(1);
            }
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .app-sidebar {
                transform: translateX(-100%);
                width: 280px;
                transition: transform 0.3s ease;
            }
            .app-sidebar.show {
                transform: translateX(0);
            }
            .mobile-header {
                display: flex;
            }
            .mobile-overlay {
                display: block;
                pointer-events: none;
            }
            .mobile-overlay.show {
                pointer-events: auto;
                opacity: 1;
            }
            .main-content {
                margin-left: 0;
                padding-top: var(--mobile-header-height);
            }
            .hero-title {
                font-size: 44px;
            }
            .data-bar-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .feature-grid-asym {
                grid-template-columns: 1fr;
            }
            .feature-sub-grid {
                grid-template-columns: 1fr 1fr;
            }
            .case-study-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .pricing-layout {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .price-card.featured {
                transform: scale(1);
            }
            .price-card.featured:hover {
                transform: translateY(-3px);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
            .entrance-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .scene-demo-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .usecase-row {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .usecase-row.reverse {
                direction: ltr;
            }
            .section-block {
                padding: 64px 0;
            }
            .h1,
            h1 {
                font-size: 40px;
            }
            h2 {
                font-size: 30px;
            }
            h3 {
                font-size: 22px;
            }
        }

        @media (max-width: 640px) {
            h1 {
                font-size: 30px;
                line-height: 1.15;
            }
            h2 {
                font-size: 24px;
            }
            h3 {
                font-size: 20px;
            }
            .container-wide {
                padding: 0 16px;
            }
            .hero-section {
                min-height: auto;
                padding: 80px 0 60px;
            }
            .hero-content {
                padding: 40px 0;
            }
            .hero-title {
                font-size: 30px;
            }
            .hero-subtitle {
                font-size: 16px;
            }
            .hero-aux-text {
                font-size: 13px;
            }
            .hero-cta-row {
                flex-direction: column;
                gap: 10px;
            }
            .btn-primary,
            .btn-outline-light {
                width: 100%;
                padding: 12px 20px;
                font-size: 15px;
            }
            .hero-countdown-box {
                padding: 16px;
            }
            .countdown-number {
                font-size: 24px;
            }
            .data-bar-grid {
                grid-template-columns: 1fr 1fr;
            }
            .data-number {
                font-size: 28px;
            }
            .feature-sub-grid {
                grid-template-columns: 1fr;
            }
            .case-study-grid {
                grid-template-columns: 1fr;
            }
            .news-card-horizontal {
                flex-direction: column;
                align-items: flex-start;
                gap: 12px;
            }
            .news-date-col {
                width: auto;
                flex-direction: row;
                gap: 8px;
                align-items: center;
                border-right: none;
                padding-right: 0;
            }
            .news-thumb {
                width: 100%;
                height: 160px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 8px;
            }
            .footer-beian {
                justify-content: center;
            }
            .entrance-grid {
                grid-template-columns: 1fr;
            }
            .brand-intro-block {
                padding: 28px 20px;
            }
            .deep-content {
                padding: 28px 20px;
            }
            .deep-content h3 {
                font-size: 20px;
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
            .section-block {
                padding: 48px 0;
            }
            .hero-scroll-hint {
                display: none;
            }
            .countdown-timer {
                gap: 6px;
            }
            .countdown-unit {
                min-width: 42px;
            }
            .countdown-number {
                font-size: 22px;
            }
            .countdown-separator {
                font-size: 20px;
            }
        }

/* roulang page: category2 */
:root {
            --primary: #101512;
            --primary-light: #1c241e;
            --accent: #B8E86A;
            --accent-dark: #9ed04e;
            --gold: #E5C07B;
            --bg-warm: #F5F3EE;
            --text-primary: #1A1D1B;
            --text-secondary: #6A706C;
            --border-color: #E1DED6;
            --success-green: #2DAF64;
            --warning-red: #E95D3F;
            --radius-sm: 4px;
            --radius-md: 6px;
            --radius-lg: 8px;
            --shadow-sm: 0 1px 2px rgba(16, 21, 18, 0.05);
            --shadow-md: 0 8px 24px rgba(16, 21, 18, 0.08);
            --shadow-lg: 0 14px 32px rgba(16, 21, 18, 0.12);
            --sidebar-width: 260px;
            --header-height: 72px;
            --mobile-header-height: 64px;
            --transition-base: 0.25s ease;
            --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", "Helvetica Neue", Arial, sans-serif;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.75;
            color: var(--text-primary);
            background-color: var(--bg-warm);
            margin: 0;
            padding: 0;
            overflow-x: hidden;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        a {
            color: var(--text-primary);
            text-decoration: none;
            transition: color var(--transition-base);
        }

        a:hover,
        a:focus {
            color: var(--accent-dark);
            outline: none;
        }

        a:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 3px;
            border-radius: var(--radius-sm);
        }

        button,
        input {
            font-family: var(--font-sans);
        }

        button:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

        .container-wide {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 32px;
        }

        .main-content {
            margin-left: var(--sidebar-width);
            min-height: 100vh;
        }

        /* ===== Sidebar Navigation ===== */
        .app-sidebar {
            position: fixed;
            left: 0;
            top: 0;
            width: var(--sidebar-width);
            height: 100vh;
            background-color: var(--primary);
            color: #F5F3EE;
            z-index: 1000;
            display: flex;
            flex-direction: column;
            transition: transform 0.3s ease;
        }

        .sidebar-logo {
            height: var(--header-height);
            display: flex;
            align-items: center;
            padding: 0 24px;
            border-bottom: 1px solid rgba(245, 243, 238, 0.08);
            flex-shrink: 0;
        }

        .sidebar-logo a {
            font-size: 20px;
            font-weight: 700;
            color: #F5F3EE;
            letter-spacing: 0.02em;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .sidebar-logo a:hover {
            color: var(--accent);
        }

        .sidebar-logo .logo-badge {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            background: var(--accent);
            color: var(--primary);
            border-radius: var(--radius-md);
            font-size: 16px;
            font-weight: 700;
            flex-shrink: 0;
        }

        .sidebar-nav {
            flex: 1;
            padding: 24px 12px;
            overflow-y: auto;
        }

        .sidebar-nav .nav-label {
            font-size: 12px;
            text-transform: uppercase;
            letter-spacing: 0.1em;
            color: rgba(245, 243, 238, 0.5);
            padding: 0 12px;
            margin-bottom: 12px;
            font-weight: 500;
        }

        .sidebar-nav ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .sidebar-nav li {
            margin-bottom: 2px;
        }

        .sidebar-nav a {
            display: flex;
            align-items: center;
            padding: 12px 16px;
            color: rgba(245, 243, 238, 0.85);
            font-size: 15px;
            font-weight: 500;
            border-radius: var(--radius-sm);
            position: relative;
            transition: all var(--transition-base);
            letter-spacing: 0.01em;
        }

        .sidebar-nav a:hover {
            background: rgba(184, 232, 106, 0.08);
            color: #F5F3EE;
        }

        .sidebar-nav a.active {
            color: var(--accent);
            background: rgba(184, 232, 106, 0.12);
        }

        .sidebar-nav a.active::before {
            content: '';
            position: absolute;
            left: -12px;
            top: 50%;
            transform: translateY(-50%);
            width: 3px;
            height: 28px;
            background: var(--accent);
            border-radius: 0 2px 2px 0;
        }

        .sidebar-nav a .nav-icon {
            margin-right: 12px;
            font-size: 16px;
            opacity: 0.7;
            flex-shrink: 0;
        }

        .sidebar-footer {
            padding: 20px 16px;
            border-top: 1px solid rgba(245, 243, 238, 0.08);
            flex-shrink: 0;
        }

        .sidebar-login-btn {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            width: 100%;
            padding: 10px 16px;
            background: transparent;
            border: 1px solid rgba(245, 243, 238, 0.3);
            color: #F5F3EE;
            border-radius: var(--radius-sm);
            font-size: 14px;
            font-weight: 500;
            cursor: pointer;
            transition: all var(--transition-base);
            text-align: center;
        }

        .sidebar-login-btn:hover {
            background: rgba(184, 232, 106, 0.12);
            border-color: var(--accent);
            color: var(--accent);
        }

        /* ===== Mobile Header ===== */
        .mobile-header {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: var(--mobile-header-height);
            background: var(--primary);
            z-index: 999;
            align-items: center;
            padding: 0 16px;
            justify-content: space-between;
        }

        .mobile-header .mobile-logo {
            font-size: 17px;
            font-weight: 700;
            color: #F5F3EE;
            display: flex;
            align-items: center;
            gap: 8px;
            white-space: nowrap;
        }

        .mobile-header .mobile-logo .logo-badge {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 30px;
            height: 30px;
            background: var(--accent);
            color: var(--primary);
            border-radius: var(--radius-sm);
            font-size: 13px;
            font-weight: 700;
            flex-shrink: 0;
        }

        .hamburger-btn {
            background: transparent;
            border: none;
            cursor: pointer;
            padding: 8px;
            display: flex;
            flex-direction: column;
            gap: 5px;
            border-radius: var(--radius-sm);
        }

        .hamburger-btn span {
            display: block;
            width: 24px;
            height: 2px;
            background: #F5F3EE;
            border-radius: 2px;
            transition: all 0.3s ease;
        }

        .drawer-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(16, 21, 18, 0.6);
            z-index: 998;
            opacity: 0;
            transition: opacity 0.3s ease;
        }

        .drawer-overlay.open {
            opacity: 1;
        }

        /* ===== Hero Section ===== */
        .page-hero {
            position: relative;
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            padding: 80px 0 70px;
            min-height: 380px;
            display: flex;
            align-items: center;
            overflow: hidden;
        }

        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(16, 21, 18, 0.85) 0%, rgba(16, 21, 18, 0.55) 50%, rgba(16, 21, 18, 0.75) 100%);
            z-index: 1;
        }

        .page-hero .hero-content {
            position: relative;
            z-index: 2;
            max-width: 780px;
        }

        .page-hero .hero-tag {
            display: inline-block;
            padding: 6px 16px;
            background: rgba(184, 232, 106, 0.15);
            border: 1px solid rgba(184, 232, 106, 0.4);
            color: var(--accent);
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.06em;
            border-radius: 20px;
            margin-bottom: 20px;
        }

        .page-hero h1 {
            font-size: 46px;
            font-weight: 700;
            line-height: 1.15;
            color: #F5F3EE;
            margin: 0 0 20px;
            letter-spacing: -0.01em;
        }

        .page-hero .hero-desc {
            font-size: 18px;
            line-height: 1.8;
            color: rgba(245, 243, 238, 0.85);
            max-width: 650px;
            margin: 0;
        }

        .page-hero .hero-stats-row {
            display: flex;
            gap: 40px;
            margin-top: 32px;
            flex-wrap: wrap;
        }

        .page-hero .hero-stat {
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .page-hero .hero-stat .stat-num {
            font-size: 28px;
            font-weight: 700;
            color: var(--accent);
            line-height: 1.1;
        }

        .page-hero .hero-stat .stat-label {
            font-size: 13px;
            color: rgba(245, 243, 238, 0.65);
            letter-spacing: 0.05em;
        }

        /* ===== Filter Bar ===== */
        .filter-bar-section {
            background: #ffffff;
            border-bottom: 1px solid var(--border-color);
            padding: 16px 0;
            position: sticky;
            top: 0;
            z-index: 50;
        }

        .filter-bar {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
        }

        .filter-bar .filter-label {
            font-size: 13px;
            font-weight: 600;
            color: var(--text-secondary);
            letter-spacing: 0.05em;
            margin-right: 8px;
            white-space: nowrap;
        }

        .filter-bar .filter-chip {
            padding: 8px 18px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 500;
            border: 1px solid var(--border-color);
            background: #fff;
            color: var(--text-primary);
            cursor: pointer;
            transition: all var(--transition-base);
            white-space: nowrap;
        }

        .filter-bar .filter-chip:hover {
            border-color: var(--accent-dark);
            color: var(--accent-dark);
            background: rgba(184, 232, 106, 0.06);
        }

        .filter-bar .filter-chip.active {
            background: var(--primary);
            color: #F5F3EE;
            border-color: var(--primary);
        }

        /* ===== Feature List Section ===== */
        .feature-list-section {
            padding: 70px 0 60px;
        }

        .section-heading {
            margin-bottom: 48px;
        }

        .section-heading .section-eyebrow {
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.08em;
            color: var(--accent-dark);
            text-transform: uppercase;
            margin-bottom: 12px;
            display: block;
        }

        .section-heading h2 {
            font-size: 36px;
            font-weight: 700;
            line-height: 1.2;
            color: var(--text-primary);
            margin: 0 0 14px;
            letter-spacing: -0.01em;
        }

        .section-heading .section-sub {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 620px;
            line-height: 1.7;
            margin: 0;
        }

        .feature-card-row {
            display: flex;
            gap: 24px;
            background: #fff;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            padding: 28px;
            margin-bottom: 24px;
            transition: all var(--transition-base);
            align-items: center;
        }

        .feature-card-row:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
            border-color: #d5d2c9;
        }

        .feature-card-row .feature-thumb {
            flex: 0 0 280px;
            width: 280px;
            height: 180px;
            border-radius: var(--radius-md);
            overflow: hidden;
            margin-right: 28px;
        }

        .feature-card-row .feature-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

        .feature-card-row:hover .feature-thumb img {
            transform: scale(1.03);
        }

        .feature-card-row .feature-info {
            flex: 1;
            min-width: 0;
        }

        .feature-card-row .feature-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 10px;
            flex-wrap: wrap;
        }

        .feature-card-row .feature-tag {
            padding: 4px 12px;
            background: rgba(184, 232, 106, 0.15);
            color: #4a7a10;
            font-size: 12px;
            font-weight: 600;
            border-radius: 16px;
            letter-spacing: 0.04em;
        }

        .feature-card-row .feature-date {
            font-size: 12px;
            color: var(--text-secondary);
            letter-spacing: 0.06em;
            font-weight: 500;
        }

        .feature-card-row h3 {
            font-size: 22px;
            font-weight: 650;
            line-height: 1.35;
            color: var(--text-primary);
            margin: 0 0 10px;
            letter-spacing: -0.005em;
        }

        .feature-card-row h3 a {
            color: inherit;
        }

        .feature-card-row h3 a:hover {
            color: var(--accent-dark);
        }

        .feature-card-row .feature-excerpt {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 0 0 14px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .feature-card-row .read-more-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            border-bottom: 1px solid var(--primary);
            padding-bottom: 2px;
            transition: all var(--transition-base);
            letter-spacing: 0.02em;
        }

        .feature-card-row .read-more-link:hover {
            color: var(--accent-dark);
            border-color: var(--accent-dark);
        }

        /* ===== Core Function Highlight ===== */
        .core-function-section {
            padding: 70px 0;
            background: var(--primary);
            color: #F5F3EE;
        }

        .core-function-section .section-heading h2 {
            color: #F5F3EE;
        }

        .core-function-section .section-heading .section-sub {
            color: rgba(245, 243, 238, 0.7);
        }

        .core-function-section .section-heading .section-eyebrow {
            color: var(--accent);
        }

        .core-function-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
            margin-top: 8px;
        }

        .core-function-card {
            background: rgba(245, 243, 238, 0.05);
            border: 1px solid rgba(245, 243, 238, 0.1);
            border-radius: var(--radius-lg);
            padding: 32px;
            transition: all var(--transition-base);
        }

        .core-function-card:hover {
            background: rgba(245, 243, 238, 0.08);
            border-color: rgba(184, 232, 106, 0.3);
            transform: translateY(-3px);
            box-shadow: var(--shadow-lg);
        }

        .core-function-card .cf-icon {
            width: 48px;
            height: 48px;
            background: rgba(184, 232, 106, 0.15);
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: var(--accent);
            margin-bottom: 18px;
        }

        .core-function-card h3 {
            font-size: 20px;
            font-weight: 650;
            line-height: 1.35;
            color: #F5F3EE;
            margin: 0 0 12px;
        }

        .core-function-card p {
            font-size: 15px;
            line-height: 1.75;
            color: rgba(245, 243, 238, 0.75);
            margin: 0;
        }

        .core-function-card .cf-metric {
            display: flex;
            gap: 24px;
            margin-top: 20px;
            padding-top: 16px;
            border-top: 1px solid rgba(245, 243, 238, 0.1);
        }

        .core-function-card .cf-metric-item {
            display: flex;
            flex-direction: column;
            gap: 2px;
        }

        .core-function-card .cf-metric-num {
            font-size: 22px;
            font-weight: 700;
            color: var(--accent);
            line-height: 1.2;
        }

        .core-function-card .cf-metric-label {
            font-size: 12px;
            color: rgba(245, 243, 238, 0.55);
            letter-spacing: 0.05em;
        }

        /* ===== Steps Section ===== */
        .steps-section {
            padding: 70px 0;
            background: #fff;
        }

        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-top: 8px;
        }

        .step-item {
            text-align: center;
            padding: 28px 20px;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            background: #fff;
            transition: all var(--transition-base);
            position: relative;
        }

        .step-item:hover {
            border-color: var(--accent-dark);
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }

        .step-item .step-num {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 44px;
            height: 44px;
            background: var(--primary);
            color: var(--accent);
            border-radius: 50%;
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 16px;
        }

        .step-item h3 {
            font-size: 16px;
            font-weight: 650;
            color: var(--text-primary);
            margin: 0 0 8px;
            line-height: 1.4;
        }

        .step-item p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.65;
            margin: 0;
        }

        /* ===== FAQ Section ===== */
        .faq-section {
            padding: 70px 0;
            background: var(--bg-warm);
        }

        .faq-list {
            max-width: 780px;
            margin: 0 auto;
        }

        .faq-item {
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
            margin-bottom: -1px;
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            padding: 20px 4px;
            background: transparent;
            border: none;
            cursor: pointer;
            font-size: 18px;
            font-weight: 600;
            color: var(--text-primary);
            text-align: left;
            gap: 16px;
            transition: all var(--transition-base);
        }

        .faq-question:hover {
            color: var(--accent-dark);
        }

        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border: 1.5px solid var(--border-color);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            font-weight: 500;
            color: var(--text-secondary);
            transition: all var(--transition-base);
            line-height: 1;
        }

        .faq-item.active .faq-icon {
            transform: rotate(45deg);
            border-color: var(--accent-dark);
            color: var(--accent-dark);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.25s ease, padding 0.25s ease;
            padding: 0 4px;
        }

        .faq-item.active .faq-answer {
            max-height: 400px;
            padding: 0 4px 20px;
        }

        .faq-answer p {
            font-size: 15px;
            line-height: 1.8;
            color: var(--text-secondary);
            margin: 0;
            max-width: 720px;
        }

        /* ===== CTA Section ===== */
        .cta-section {
            padding: 80px 0;
            background: var(--primary);
            color: #F5F3EE;
            text-align: center;
        }

        .cta-section .cta-inner {
            max-width: 720px;
            margin: 0 auto;
        }

        .cta-section h2 {
            font-size: 36px;
            font-weight: 700;
            line-height: 1.25;
            color: #F5F3EE;
            margin: 0 0 16px;
            letter-spacing: -0.01em;
        }

        .cta-section p {
            font-size: 16px;
            line-height: 1.8;
            color: rgba(245, 243, 238, 0.75);
            margin: 0 0 32px;
        }

        .cta-buttons {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 32px;
            background: var(--accent);
            color: var(--primary);
            font-size: 15px;
            font-weight: 600;
            border-radius: var(--radius-sm);
            border: none;
            cursor: pointer;
            transition: all var(--transition-base);
            letter-spacing: 0.02em;
        }

        .btn-primary:hover {
            background: var(--accent-dark);
            color: var(--primary);
            transform: translateY(-1px);
            box-shadow: var(--shadow-md);
        }

        .btn-primary:active {
            transform: scale(0.97);
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 32px;
            background: transparent;
            color: #F5F3EE;
            font-size: 15px;
            font-weight: 600;
            border-radius: var(--radius-sm);
            border: 1px solid rgba(245, 243, 238, 0.4);
            cursor: pointer;
            transition: all var(--transition-base);
            letter-spacing: 0.02em;
        }

        .btn-secondary:hover {
            border-color: var(--accent);
            color: var(--accent);
            background: rgba(184, 232, 106, 0.08);
        }

        .btn-secondary:active {
            transform: scale(0.97);
        }

        /* ===== Footer ===== */
        .footer-section {
            background: var(--primary);
            color: rgba(245, 243, 238, 0.8);
            padding: 60px 0 30px;
            border-top: 1px solid rgba(245, 243, 238, 0.08);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-brand .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 16px;
        }

        .footer-brand .footer-logo .logo-badge {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 32px;
            height: 32px;
            background: var(--accent);
            color: var(--primary);
            border-radius: var(--radius-sm);
            font-size: 14px;
            font-weight: 700;
            flex-shrink: 0;
        }

        .footer-brand .footer-logo span:last-child {
            font-size: 18px;
            font-weight: 700;
            color: #F5F3EE;
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.7;
            color: rgba(245, 243, 238, 0.65);
            margin: 0;
            max-width: 320px;
        }

        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            color: #F5F3EE;
            margin: 0 0 16px;
            letter-spacing: 0.02em;
        }

        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .footer-col li {
            margin-bottom: 10px;
        }

        .footer-col a {
            font-size: 14px;
            color: rgba(245, 243, 238, 0.65);
            transition: color var(--transition-base);
        }

        .footer-col a:hover {
            color: var(--accent);
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            padding-top: 24px;
            border-top: 1px solid rgba(245, 243, 238, 0.08);
            font-size: 13px;
            color: rgba(245, 243, 238, 0.55);
        }

        .footer-beian {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        .footer-bottom a {
            color: rgba(245, 243, 238, 0.65);
            font-size: 13px;
        }

        .footer-bottom a:hover {
            color: var(--accent);
        }

        /* ===== Load More Button ===== */
        .load-more-section {
            padding: 20px 0 60px;
            text-align: center;
        }

        .load-more-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            width: 100%;
            max-width: 420px;
            padding: 16px 32px;
            background: transparent;
            border: 1px solid var(--border-color);
            color: var(--text-primary);
            font-size: 15px;
            font-weight: 600;
            border-radius: var(--radius-sm);
            cursor: pointer;
            transition: all var(--transition-base);
            letter-spacing: 0.02em;
        }

        .load-more-btn:hover {
            border-color: var(--accent-dark);
            color: var(--accent-dark);
            background: rgba(184, 232, 106, 0.06);
        }

        /* ===== Animations ===== */
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(12px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .fade-in-up {
            animation: fadeInUp 0.4s ease forwards;
        }

        .fade-in-up-delay-1 {
            animation-delay: 0.08s;
            opacity: 0;
        }
        .fade-in-up-delay-2 {
            animation-delay: 0.16s;
            opacity: 0;
        }
        .fade-in-up-delay-3 {
            animation-delay: 0.24s;
            opacity: 0;
        }
        .fade-in-up-delay-4 {
            animation-delay: 0.32s;
            opacity: 0;
        }

        @media (prefers-reduced-motion: reduce) {
            html {
                scroll-behavior: auto;
            }
            .fade-in-up,
            .fade-in-up-delay-1,
            .fade-in-up-delay-2,
            .fade-in-up-delay-3,
            .fade-in-up-delay-4 {
                animation: none;
                opacity: 1;
            }
            .feature-card-row,
            .core-function-card,
            .step-item {
                transition: none;
            }
        }

        /* ===== Responsive ===== */
        @media screen and (max-width: 1024px) {
            .app-sidebar {
                transform: translateX(-100%);
            }
            .app-sidebar.open {
                transform: translateX(0);
            }
            .main-content {
                margin-left: 0;
            }
            .mobile-header {
                display: flex;
            }
            .drawer-overlay {
                display: block;
                pointer-events: none;
            }
            .drawer-overlay.open {
                pointer-events: auto;
            }
            .page-hero {
                padding-top: calc(var(--mobile-header-height) + 40px);
                min-height: 320px;
            }
            .page-hero h1 {
                font-size: 36px;
            }
            .core-function-grid {
                grid-template-columns: 1fr;
            }
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .feature-card-row {
                flex-direction: column;
                align-items: flex-start;
            }
            .feature-card-row .feature-thumb {
                flex: none;
                width: 100%;
                height: 220px;
                margin-right: 0;
                margin-bottom: 20px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
        }

        @media screen and (max-width: 640px) {
            .container-wide {
                padding: 0 18px;
            }
            .page-hero h1 {
                font-size: 28px;
            }
            .page-hero .hero-desc {
                font-size: 15px;
            }
            .page-hero .hero-stats-row {
                gap: 20px;
            }
            .page-hero .hero-stat .stat-num {
                font-size: 22px;
            }
            .section-heading h2 {
                font-size: 26px;
            }
            .filter-bar {
                gap: 8px;
            }
            .filter-bar .filter-chip {
                padding: 6px 14px;
                font-size: 12px;
            }
            .core-function-grid {
                grid-template-columns: 1fr;
            }
            .steps-grid {
                grid-template-columns: 1fr;
                gap: 12px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 10px;
            }
            .footer-beian {
                flex-direction: column;
                gap: 6px;
                text-align: center;
            }
            .cta-section h2 {
                font-size: 26px;
            }
            .cta-buttons {
                flex-direction: column;
            }
            .btn-primary,
            .btn-secondary {
                width: 100%;
                justify-content: center;
            }
        }

/* roulang page: category1 */
:root {
    --primary: #101512;
    --primary-light: #1c241e;
    --accent: #B8E86A;
    --accent-dark: #9ed04e;
    --gold: #E5C07B;
    --bg-warm: #F5F3EE;
    --text-primary: #1A1D1B;
    --text-secondary: #6A706C;
    --border-color: #E1DED6;
    --success-green: #2DAF64;
    --warning-red: #E95D3F;
    --radius-sm: 4px;
    --radius-md: 6px;
    --radius-lg: 8px;
    --shadow-sm: 0 1px 2px rgba(16, 21, 18, 0.05);
    --shadow-md: 0 8px 24px rgba(16, 21, 18, 0.08);
    --shadow-lg: 0 14px 32px rgba(16, 21, 18, 0.12);
    --sidebar-width: 260px;
    --header-height: 72px;
    --mobile-header-height: 64px;
    --transition-base: 0.25s ease;
    --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", "Helvetica Neue", Arial, sans-serif;
  }

  * {
    box-sizing: border-box;
  }

  html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
  }

  body {
    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.75;
    color: var(--text-primary);
    background-color: var(--bg-warm);
    margin: 0;
    padding: 0;
    overflow-x: hidden;
  }

  img {
    max-width: 100%;
    height: auto;
    display: block;
  }

  a {
    color: var(--text-primary);
    text-decoration: none;
    transition: color var(--transition-base);
  }

  a:hover,
  a:focus {
    color: var(--accent-dark);
    outline: none;
  }

  a:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 3px;
    border-radius: var(--radius-sm);
  }

  button,
  input {
    font-family: var(--font-sans);
  }

  button:focus-visible,
  input:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
  }

  .container-wide {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 32px;
  }

  /* ===== Sidebar Navigation ===== */
  .app-sidebar {
    position: fixed;
    left: 0;
    top: 0;
    width: var(--sidebar-width);
    height: 100vh;
    background-color: var(--primary);
    color: #F5F3EE;
    z-index: 1000;
    display: flex;
    flex-direction: column;
    transition: transform 0.3s ease;
  }

  .sidebar-logo {
    height: var(--header-height);
    display: flex;
    align-items: center;
    padding: 0 24px;
    border-bottom: 1px solid rgba(245, 243, 238, 0.08);
    flex-shrink: 0;
  }

  .sidebar-logo a {
    font-size: 20px;
    font-weight: 700;
    color: #F5F3EE;
    letter-spacing: 0.02em;
    white-space: nowrap;
    display: flex;
    align-items: center;
    gap: 10px;
  }

  .sidebar-logo a:hover {
    color: var(--accent);
  }

  .logo-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: var(--accent);
    color: var(--primary);
    border-radius: var(--radius-md);
    font-size: 16px;
    font-weight: 700;
    flex-shrink: 0;
  }

  .sidebar-nav {
    flex: 1;
    padding: 24px 12px;
    overflow-y: auto;
  }

  .sidebar-nav .nav-label {
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: rgba(245, 243, 238, 0.5);
    padding: 0 12px;
    margin-bottom: 12px;
    font-weight: 500;
  }

  .sidebar-nav ul {
    list-style: none;
    margin: 0;
    padding: 0;
  }

  .sidebar-nav li {
    margin-bottom: 2px;
  }

  .sidebar-nav a {
    display: flex;
    align-items: center;
    padding: 12px 16px;
    color: rgba(245, 243, 238, 0.85);
    font-size: 15px;
    font-weight: 500;
    border-radius: var(--radius-sm);
    position: relative;
    transition: all var(--transition-base);
    letter-spacing: 0.01em;
  }

  .sidebar-nav a:hover {
    background: rgba(184, 232, 106, 0.08);
    color: #F5F3EE;
  }

  .sidebar-nav a.active {
    color: var(--accent);
    background: rgba(184, 232, 106, 0.12);
  }

  .sidebar-nav a.active::before {
    content: '';
    position: absolute;
    left: -12px;
    top: 50%;
    transform: translateY(-50%);
    width: 3px;
    height: 28px;
    background: var(--accent);
    border-radius: 0 2px 2px 0;
  }

  .sidebar-nav a .nav-icon {
    margin-right: 12px;
    font-size: 16px;
    opacity: 0.7;
    flex-shrink: 0;
  }

  .sidebar-footer {
    padding: 20px 16px;
    border-top: 1px solid rgba(245, 243, 238, 0.08);
    flex-shrink: 0;
  }

  .sidebar-login-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    width: 100%;
    padding: 10px 16px;
    background: transparent;
    border: 1px solid rgba(245, 243, 238, 0.3);
    color: #F5F3EE;
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-base);
    text-align: center;
  }

  .sidebar-login-btn:hover {
    background: rgba(184, 232, 106, 0.12);
    border-color: rgba(184, 232, 106, 0.5);
    color: var(--accent);
  }

  /* ===== Main Content ===== */
  .main-content {
    margin-left: var(--sidebar-width);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
  }

  /* ===== Mobile Header ===== */
  .mobile-header {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--mobile-header-height);
    background: var(--primary);
    z-index: 999;
    align-items: center;
    justify-content: space-between;
    padding: 0 16px;
  }

  .mobile-header .mobile-logo {
    color: #F5F3EE;
    font-size: 18px;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 8px;
  }

  .mobile-header .mobile-logo .logo-badge {
    width: 30px;
    height: 30px;
    font-size: 13px;
    border-radius: var(--radius-sm);
  }

  .hamburger-btn {
    background: transparent;
    border: none;
    color: #F5F3EE;
    font-size: 24px;
    cursor: pointer;
    padding: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    transition: background var(--transition-base);
  }

  .hamburger-btn:hover {
    background: rgba(184, 232, 106, 0.15);
  }

  .sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(16, 21, 18, 0.55);
    z-index: 998;
    opacity: 0;
    transition: opacity 0.3s ease;
  }

  .sidebar-overlay.active {
    opacity: 1;
  }

  /* ===== Small Hero ===== */
  .category-hero {
    background-image: url('/assets/images/backpic/back-1.webp');
    background-size: cover;
    background-position: center;
    min-height: 340px;
    display: flex;
    align-items: center;
    position: relative;
    padding: 80px 0 60px;
  }

  .category-hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(16, 21, 18, 0.88) 0%, rgba(16, 21, 18, 0.55) 55%, rgba(16, 21, 18, 0.35) 100%);
  }

  .category-hero .hero-content {
    position: relative;
    z-index: 2;
    width: 100%;
  }

  .category-hero .hero-badge {
    display: inline-block;
    background: rgba(184, 232, 106, 0.2);
    border: 1px solid rgba(184, 232, 106, 0.4);
    color: var(--accent);
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.06em;
    padding: 6px 16px;
    border-radius: 20px;
    margin-bottom: 20px;
  }

  .category-hero h1 {
    font-size: 46px;
    font-weight: 700;
    line-height: 1.12;
    color: #F5F3EE;
    margin: 0 0 16px;
    letter-spacing: -0.01em;
  }

  .category-hero .hero-desc {
    font-size: 17px;
    line-height: 1.8;
    color: rgba(245, 243, 238, 0.85);
    max-width: 720px;
    margin: 0;
  }

  /* ===== Filter Bar ===== */
  .filter-bar {
    background: #fff;
    border-bottom: 1px solid var(--border-color);
    padding: 16px 0;
    position: sticky;
    top: 0;
    z-index: 50;
  }

  .filter-bar .container-wide {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
  }

  .filter-bar .filter-label {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
    letter-spacing: 0.04em;
    margin-right: 4px;
  }

  .filter-tag {
    display: inline-flex;
    align-items: center;
    padding: 7px 18px;
    font-size: 13px;
    font-weight: 500;
    color: var(--text-secondary);
    background: var(--bg-warm);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    cursor: pointer;
    transition: all var(--transition-base);
    white-space: nowrap;
  }

  .filter-tag:hover {
    border-color: var(--accent);
    color: var(--primary);
    background: rgba(184, 232, 106, 0.15);
  }

  .filter-tag.active-tag {
    background: var(--primary);
    color: #F5F3EE;
    border-color: var(--primary);
    font-weight: 600;
  }

  /* ===== News List Section ===== */
  .news-list-section {
    padding: 48px 0 72px;
  }

  .news-list-section .section-intro {
    margin-bottom: 40px;
  }

  .news-list-section .section-intro h2 {
    font-size: 28px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 12px;
    line-height: 1.25;
  }

  .news-list-section .section-intro p {
    font-size: 15px;
    color: var(--text-secondary);
    max-width: 680px;
    line-height: 1.75;
    margin: 0;
  }

  .news-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
  }

  .news-card {
    display: flex;
    background: #fff;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
  }

  .news-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-3px);
    border-color: rgba(184, 232, 106, 0.5);
  }

  .news-card .news-date-block {
    flex-shrink: 0;
    width: 100px;
    background: var(--primary);
    color: #F5F3EE;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 16px 10px;
  }

  .news-card .news-date-block .day {
    font-size: 34px;
    font-weight: 700;
    line-height: 1;
    color: var(--accent);
  }

  .news-card .news-date-block .month {
    font-size: 13px;
    font-weight: 500;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-top: 6px;
    color: rgba(245, 243, 238, 0.7);
  }

  .news-card .news-body {
    flex: 1;
    padding: 22px 26px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    min-width: 0;
  }

  .news-card .news-meta {
    display: flex;
    gap: 12px;
    align-items: center;
    margin-bottom: 8px;
    flex-wrap: wrap;
  }

  .news-card .news-tag {
    display: inline-block;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.08em;
    color: var(--primary);
    background: rgba(184, 232, 106, 0.3);
    padding: 3px 10px;
    border-radius: var(--radius-sm);
    text-transform: uppercase;
  }

  .news-card .news-tag.tag-gold {
    background: rgba(229, 192, 123, 0.25);
    color: #8a6a2a;
  }

  .news-card .news-tag.tag-green {
    background: rgba(45, 175, 100, 0.15);
    color: #1d7a3d;
  }

  .news-card .news-tag.tag-red {
    background: rgba(233, 93, 63, 0.12);
    color: #b8402c;
  }

  .news-card .news-category {
    font-size: 12px;
    color: var(--text-secondary);
    letter-spacing: 0.02em;
  }

  .news-card h3 {
    font-size: 21px;
    font-weight: 650;
    line-height: 1.35;
    color: var(--text-primary);
    margin: 0 0 8px;
  }

  .news-card h3 a {
    color: inherit;
    transition: color var(--transition-base);
  }

  .news-card h3 a:hover {
    color: var(--accent-dark);
  }

  .news-card .news-summary {
    font-size: 14px;
    line-height: 1.7;
    color: var(--text-secondary);
    margin: 0 0 12px;
    max-width: 720px;
  }

  .news-card .read-more-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    font-weight: 600;
    color: var(--primary);
    letter-spacing: 0.02em;
    transition: all var(--transition-base);
    align-self: flex-start;
  }

  .news-card .read-more-link i {
    font-size: 12px;
    transition: transform var(--transition-base);
  }

  .news-card .read-more-link:hover {
    color: var(--accent-dark);
  }

  .news-card .read-more-link:hover i {
    transform: translateX(4px);
  }

  .news-card .news-image {
    flex-shrink: 0;
    width: 280px;
    position: relative;
    overflow: hidden;
  }

  .news-card .news-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
  }

  .news-card:hover .news-image img {
    transform: scale(1.04);
  }

  /* ===== Pagination ===== */
  .pagination-wrap {
    margin-top: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
  }

  .pagination-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 44px;
    height: 44px;
    padding: 0 16px;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
    background: #fff;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-base);
  }

  .pagination-btn:hover {
    border-color: var(--accent);
    color: var(--primary);
    background: rgba(184, 232, 106, 0.1);
  }

  .pagination-btn.current-page {
    background: var(--primary);
    color: #F5F3EE;
    border-color: var(--primary);
    font-weight: 600;
  }

  .pagination-btn.pagination-arrow {
    font-size: 16px;
  }

  .pagination-btn.pagination-ellipsis {
    border: none;
    background: transparent;
    cursor: default;
    color: var(--text-secondary);
  }

  /* ===== Subscribe CTA ===== */
  .subscribe-cta {
    background: var(--primary);
    padding: 64px 0;
    margin-top: 24px;
  }

  .subscribe-cta .subscribe-grid {
    display: flex;
    align-items: center;
    gap: 48px;
    flex-wrap: wrap;
  }

  .subscribe-cta .subscribe-info {
    flex: 1;
    min-width: 280px;
  }

  .subscribe-cta .subscribe-info h3 {
    font-size: 28px;
    font-weight: 700;
    color: #F5F3EE;
    margin: 0 0 12px;
    line-height: 1.2;
  }

  .subscribe-cta .subscribe-info p {
    font-size: 15px;
    color: rgba(245, 243, 238, 0.75);
    line-height: 1.75;
    margin: 0;
    max-width: 520px;
  }

  .subscribe-cta .subscribe-form {
    display: flex;
    gap: 12px;
    flex: 1;
    min-width: 280px;
    max-width: 460px;
  }

  .subscribe-cta .subscribe-form input {
    flex: 1;
    padding: 12px 18px;
    background: rgba(245, 243, 238, 0.1);
    border: 1px solid rgba(245, 243, 238, 0.25);
    border-radius: var(--radius-sm);
    color: #F5F3EE;
    font-size: 14px;
    transition: all var(--transition-base);
  }

  .subscribe-cta .subscribe-form input::placeholder {
    color: rgba(245, 243, 238, 0.45);
  }

  .subscribe-cta .subscribe-form input:focus {
    border-color: var(--accent);
    background: rgba(245, 243, 238, 0.15);
    outline: none;
    box-shadow: 0 0 0 3px rgba(184, 232, 106, 0.2);
  }

  .subscribe-cta .subscribe-form button {
    padding: 12px 24px;
    background: var(--accent);
    color: var(--primary);
    border: none;
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-base);
    white-space: nowrap;
  }

  .subscribe-cta .subscribe-form button:hover {
    background: var(--accent-dark);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(184, 232, 106, 0.3);
  }

  .subscribe-cta .subscribe-form button:active {
    transform: scale(0.97);
  }

  /* ===== Footer ===== */
  .footer-section {
    background: var(--primary);
    padding: 60px 0 32px;
    color: #F5F3EE;
    margin-top: 0;
  }

  .footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
  }

  .footer-brand p {
    font-size: 14px;
    line-height: 1.8;
    color: rgba(245, 243, 238, 0.6);
    margin: 16px 0 0;
    max-width: 320px;
  }

  .footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 20px;
    font-weight: 700;
    color: #F5F3EE;
  }

  .footer-col h4 {
    font-size: 14px;
    font-weight: 600;
    color: rgba(245, 243, 238, 0.45);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin: 0 0 16px;
  }

  .footer-col ul {
    list-style: none;
    margin: 0;
    padding: 0;
  }

  .footer-col ul li {
    margin-bottom: 8px;
  }

  .footer-col ul a {
    font-size: 14px;
    color: rgba(245, 243, 238, 0.7);
    transition: color var(--transition-base);
  }

  .footer-col ul a:hover {
    color: var(--accent);
  }

  .footer-bottom {
    border-top: 1px solid rgba(245, 243, 238, 0.08);
    padding-top: 20px;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    font-size: 12px;
    color: rgba(245, 243, 238, 0.45);
  }

  .footer-bottom .footer-beian {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
  }

  .footer-bottom a {
    color: rgba(245, 243, 238, 0.55);
    transition: color var(--transition-base);
  }

  .footer-bottom a:hover {
    color: var(--accent);
  }

  /* ===== Responsive ===== */
  @media (max-width: 1024px) {
    .app-sidebar {
      transform: translateX(-100%);
      transition: transform 0.3s ease;
      width: 280px;
    }

    .app-sidebar.sidebar-open {
      transform: translateX(0);
      box-shadow: var(--shadow-lg);
    }

    .sidebar-overlay.active {
      display: block;
    }

    .mobile-header {
      display: flex;
    }

    .main-content {
      margin-left: 0;
      padding-top: var(--mobile-header-height);
    }

    .news-card .news-image {
      width: 200px;
    }

    .footer-grid {
      grid-template-columns: 1fr 1fr;
      gap: 32px;
    }
  }

  @media (max-width: 640px) {
    .container-wide {
      padding: 0 16px;
    }

    .category-hero {
      min-height: 260px;
      padding: 48px 0 40px;
    }

    .category-hero h1 {
      font-size: 32px;
      line-height: 1.15;
    }

    .category-hero .hero-desc {
      font-size: 15px;
      line-height: 1.7;
    }

    .news-list-section {
      padding: 32px 0 48px;
    }

    .news-list-section .section-intro h2 {
      font-size: 24px;
    }

    .news-card {
      flex-direction: column;
    }

    .news-card .news-date-block {
      width: 100%;
      flex-direction: row;
      padding: 10px 16px;
      gap: 8px;
      align-items: center;
    }

    .news-card .news-date-block .day {
      font-size: 24px;
    }

    .news-card .news-date-block .month {
      font-size: 12px;
      margin-top: 0;
    }

    .news-card .news-body {
      padding: 16px 18px;
    }

    .news-card h3 {
      font-size: 18px;
    }

    .news-card .news-summary {
      font-size: 13px;
      line-height: 1.65;
    }

    .news-card .news-image {
      width: 100%;
      height: 180px;
      order: 2;
    }

    .news-card .news-date-block {
      order: 1;
    }

    .news-card .news-body {
      order: 3;
    }

    .subscribe-cta {
      padding: 48px 0;
    }

    .subscribe-cta .subscribe-grid {
      flex-direction: column;
      gap: 24px;
      align-items: flex-start;
    }

    .subscribe-cta .subscribe-form {
      flex-direction: column;
      width: 100%;
      max-width: 100%;
    }

    .subscribe-cta .subscribe-form button {
      width: 100%;
      justify-content: center;
    }

    .footer-grid {
      grid-template-columns: 1fr;
      gap: 24px;
    }

    .footer-bottom {
      flex-direction: column;
      align-items: flex-start;
    }

    .filter-bar .container-wide {
      gap: 8px;
    }

    .filter-tag {
      padding: 5px 12px;
      font-size: 12px;
    }

    .pagination-wrap {
      gap: 4px;
      flex-wrap: wrap;
    }

    .pagination-btn {
      min-width: 38px;
      height: 38px;
      padding: 0 10px;
      font-size: 13px;
    }
  }

  @media (prefers-reduced-motion: reduce) {
    html {
      scroll-behavior: auto;
    }
    *,
    *::before,
    *::after {
      animation-duration: 0.01ms !important;
      animation-iteration-count: 1 !important;
      transition-duration: 0.01ms !important;
      scroll-behavior: auto !important;
    }
    .news-card:hover {
      transform: none;
      box-shadow: var(--shadow-sm);
    }
    .news-card:hover .news-image img {
      transform: none;
    }
  }

/* roulang page: category3 */
:root {
            --primary: #101512;
            --primary-light: #1c241e;
            --accent: #B8E86A;
            --accent-dark: #9ed04e;
            --gold: #E5C07B;
            --bg-warm: #F5F3EE;
            --text-primary: #1A1D1B;
            --text-secondary: #6A706C;
            --border-color: #E1DED6;
            --success-green: #2DAF64;
            --warning-red: #E95D3F;
            --radius-sm: 4px;
            --radius-md: 6px;
            --radius-lg: 8px;
            --shadow-sm: 0 1px 2px rgba(16, 21, 18, 0.05);
            --shadow-md: 0 8px 24px rgba(16, 21, 18, 0.08);
            --shadow-lg: 0 14px 32px rgba(16, 21, 18, 0.12);
            --sidebar-width: 260px;
            --header-height: 72px;
            --mobile-header-height: 64px;
            --transition-base: 0.25s ease;
            --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", "Helvetica Neue", Arial, sans-serif;
        }

        * {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.75;
            color: var(--text-primary);
            background-color: var(--bg-warm);
            margin: 0;
            padding: 0;
            overflow-x: hidden;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        a {
            color: var(--text-primary);
            text-decoration: none;
            transition: color var(--transition-base);
        }

        a:hover,
        a:focus {
            color: var(--accent-dark);
            outline: none;
        }

        a:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 3px;
            border-radius: var(--radius-sm);
        }

        button,
        input,
        select,
        textarea {
            font-family: var(--font-sans);
        }

        button:focus-visible,
        input:focus-visible,
        select:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

        .container-wide {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 32px;
        }

        /* ===== Sidebar Navigation ===== */
        .app-sidebar {
            position: fixed;
            left: 0;
            top: 0;
            width: var(--sidebar-width);
            height: 100vh;
            background-color: var(--primary);
            color: #F5F3EE;
            z-index: 1000;
            display: flex;
            flex-direction: column;
            transition: transform 0.3s ease;
        }

        .sidebar-logo {
            height: var(--header-height);
            display: flex;
            align-items: center;
            padding: 0 24px;
            border-bottom: 1px solid rgba(245, 243, 238, 0.08);
            flex-shrink: 0;
        }

        .sidebar-logo a {
            font-size: 20px;
            font-weight: 700;
            color: #F5F3EE;
            letter-spacing: 0.02em;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .sidebar-logo a:hover {
            color: var(--accent);
        }

        .sidebar-logo .logo-badge {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            background: var(--accent);
            color: var(--primary);
            border-radius: var(--radius-md);
            font-size: 16px;
            font-weight: 700;
            flex-shrink: 0;
        }

        .sidebar-nav {
            flex: 1;
            padding: 24px 12px;
            overflow-y: auto;
        }

        .sidebar-nav .nav-label {
            font-size: 12px;
            text-transform: uppercase;
            letter-spacing: 0.1em;
            color: rgba(245, 243, 238, 0.5);
            padding: 0 12px;
            margin-bottom: 12px;
            font-weight: 500;
        }

        .sidebar-nav ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .sidebar-nav li {
            margin-bottom: 2px;
        }

        .sidebar-nav a {
            display: flex;
            align-items: center;
            padding: 12px 16px;
            color: rgba(245, 243, 238, 0.85);
            font-size: 15px;
            font-weight: 500;
            border-radius: var(--radius-sm);
            position: relative;
            transition: all var(--transition-base);
            letter-spacing: 0.01em;
        }

        .sidebar-nav a:hover {
            background: rgba(184, 232, 106, 0.08);
            color: #F5F3EE;
        }

        .sidebar-nav a.active {
            color: var(--accent);
            background: rgba(184, 232, 106, 0.12);
        }

        .sidebar-nav a.active::before {
            content: '';
            position: absolute;
            left: -12px;
            top: 50%;
            transform: translateY(-50%);
            width: 3px;
            height: 28px;
            background: var(--accent);
            border-radius: 0 2px 2px 0;
        }

        .sidebar-nav a .nav-icon {
            margin-right: 12px;
            font-size: 16px;
            opacity: 0.7;
            flex-shrink: 0;
        }

        .sidebar-footer {
            padding: 20px 16px;
            border-top: 1px solid rgba(245, 243, 238, 0.08);
            flex-shrink: 0;
        }

        .sidebar-login-btn {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            width: 100%;
            padding: 10px 16px;
            background: transparent;
            border: 1px solid rgba(245, 243, 238, 0.3);
            color: #F5F3EE;
            border-radius: var(--radius-sm);
            font-size: 14px;
            font-weight: 500;
            cursor: pointer;
            transition: all var(--transition-base);
            text-align: center;
        }

        .sidebar-login-btn:hover {
            background: rgba(184, 232, 106, 0.12);
            border-color: var(--accent);
            color: var(--accent);
        }

        .sidebar-login-btn i {
            font-size: 14px;
        }

        /* ===== Main Content Area ===== */
        .main-content {
            margin-left: var(--sidebar-width);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        /* ===== Mobile Header ===== */
        .mobile-header {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: var(--mobile-header-height);
            background: var(--primary);
            z-index: 999;
            align-items: center;
            padding: 0 16px;
            justify-content: space-between;
        }

        .mobile-header .mobile-logo {
            display: flex;
            align-items: center;
            gap: 8px;
            color: #F5F3EE;
            font-size: 17px;
            font-weight: 700;
        }

        .mobile-header .mobile-logo .logo-badge {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 30px;
            height: 30px;
            background: var(--accent);
            color: var(--primary);
            border-radius: var(--radius-sm);
            font-size: 14px;
            font-weight: 700;
        }

        .mobile-menu-btn {
            background: transparent;
            border: none;
            color: #F5F3EE;
            font-size: 22px;
            cursor: pointer;
            padding: 6px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: var(--radius-sm);
            transition: background var(--transition-base);
        }

        .mobile-menu-btn:hover {
            background: rgba(184, 232, 106, 0.1);
        }

        .mobile-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(16, 21, 18, 0.5);
            z-index: 998;
            opacity: 0;
            transition: opacity 0.3s ease;
        }

        .mobile-overlay.show {
            display: block;
            opacity: 1;
        }

        .mobile-drawer {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 280px;
            height: 100vh;
            background: var(--primary);
            z-index: 1001;
            transform: translateX(-100%);
            transition: transform 0.3s ease;
            flex-direction: column;
            padding: 16px;
        }

        .mobile-drawer.show {
            transform: translateX(0);
        }

        .mobile-drawer .mobile-drawer-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 20px;
            color: #F5F3EE;
        }

        .mobile-drawer .mobile-close-btn {
            background: transparent;
            border: none;
            color: #F5F3EE;
            font-size: 20px;
            cursor: pointer;
            padding: 6px;
        }

        .mobile-drawer-nav ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .mobile-drawer-nav li {
            margin-bottom: 4px;
        }

        .mobile-drawer-nav a {
            display: flex;
            align-items: center;
            padding: 14px 16px;
            color: rgba(245, 243, 238, 0.85);
            font-size: 15px;
            font-weight: 500;
            border-radius: var(--radius-sm);
            transition: all var(--transition-base);
        }

        .mobile-drawer-nav a:hover {
            background: rgba(184, 232, 106, 0.08);
            color: #F5F3EE;
        }

        .mobile-drawer-nav a.active {
            color: var(--accent);
            background: rgba(184, 232, 106, 0.12);
        }

        .mobile-drawer-nav a .nav-icon {
            margin-right: 12px;
            opacity: 0.7;
            font-size: 16px;
        }

        /* ===== Hero Section - 白皮书获客风格 ===== */
        .hero-whitepaper {
            position: relative;
            background: var(--primary);
            color: #F5F3EE;
            padding: 80px 0 72px;
            overflow: hidden;
            margin-bottom: 0;
        }

        .hero-whitepaper::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(16, 21, 18, 0.92) 0%, rgba(16, 21, 18, 0.65) 50%, rgba(16, 21, 18, 0.85) 100%), url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
            z-index: 0;
            animation: heroBgZoom 6s ease-out forwards;
        }

        @keyframes heroBgZoom {
            from { transform: scale(1); }
            to { transform: scale(1.05); }
        }

        .hero-whitepaper .container-wide {
            position: relative;
            z-index: 1;
        }

        .hero-whitepaper .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(184, 232, 106, 0.15);
            color: var(--accent);
            padding: 6px 14px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 500;
            letter-spacing: 0.02em;
            margin-bottom: 20px;
            border: 1px solid rgba(184, 232, 106, 0.25);
        }

        .hero-whitepaper h1 {
            font-size: 52px;
            font-weight: 700;
            line-height: 1.12;
            color: #F5F3EE;
            margin: 0 0 20px;
            letter-spacing: -0.01em;
            max-width: 780px;
        }

        .hero-whitepaper .hero-subtitle {
            font-size: 18px;
            line-height: 1.75;
            color: rgba(245, 243, 238, 0.85);
            max-width: 640px;
            margin-bottom: 32px;
        }

        .hero-whitepaper .hero-cta-group {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            margin-bottom: 40px;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--accent);
            color: var(--primary);
            padding: 14px 28px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: all var(--transition-base);
            letter-spacing: 0.01em;
        }

        .btn-primary:hover {
            background: #d0f59a;
            color: var(--primary);
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }

        .btn-primary:active {
            transform: scale(0.97);
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            color: #F5F3EE;
            padding: 14px 28px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 500;
            border: 1px solid rgba(245, 243, 238, 0.4);
            cursor: pointer;
            transition: all var(--transition-base);
            letter-spacing: 0.01em;
        }

        .btn-secondary:hover {
            border-color: var(--accent);
            color: var(--accent);
            background: rgba(184, 232, 106, 0.08);
        }

        .btn-secondary:active {
            transform: scale(0.97);
        }

        .hero-whitepaper .hero-meta-row {
            display: flex;
            flex-wrap: wrap;
            gap: 24px;
            color: rgba(245, 243, 238, 0.6);
            font-size: 14px;
            letter-spacing: 0.02em;
        }

        .hero-whitepaper .hero-meta-row span {
            display: flex;
            align-items: center;
            gap: 6px;
        }

        /* Hero 右侧白皮书封面卡片 */
        .whitepaper-card {
            background: #F5F3EE;
            color: var(--text-primary);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            max-width: 360px;
            margin-left: auto;
        }

        .whitepaper-card .whitepaper-cover {
            position: relative;
        }

        .whitepaper-card .whitepaper-cover img {
            width: 100%;
            aspect-ratio: 16/10;
            object-fit: cover;
        }

        .whitepaper-card .whitepaper-cover .cover-badge {
            position: absolute;
            top: 12px;
            left: 12px;
            background: var(--accent);
            color: var(--primary);
            padding: 4px 12px;
            border-radius: 999px;
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 0.05em;
        }

        .whitepaper-card .whitepaper-body {
            padding: 24px;
        }

        .whitepaper-card .whitepaper-body h3 {
            font-size: 18px;
            font-weight: 650;
            color: var(--text-primary);
            margin: 0 0 12px;
            line-height: 1.4;
        }

        .whitepaper-card .whitepaper-body ul {
            list-style: none;
            padding: 0;
            margin: 0 0 18px;
        }

        .whitepaper-card .whitepaper-body ul li {
            display: flex;
            align-items: flex-start;
            gap: 8px;
            padding: 6px 0;
            font-size: 14px;
            color: var(--text-secondary);
            border-bottom: 1px solid var(--border-color);
        }

        .whitepaper-card .whitepaper-body ul li:last-child {
            border-bottom: none;
        }

        .whitepaper-card .whitepaper-body ul li i {
            color: var(--success-green);
            font-size: 14px;
            margin-top: 2px;
            flex-shrink: 0;
        }

        .whitepaper-card .whitepaper-form {
            display: flex;
            gap: 8px;
        }

        .whitepaper-card .whitepaper-form input {
            flex: 1;
            padding: 10px 14px;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            font-size: 14px;
            background: #fff;
            color: var(--text-primary);
            transition: all var(--transition-base);
        }

        .whitepaper-card .whitepaper-form input:focus {
            border-color: var(--accent-dark);
            box-shadow: 0 0 0 3px rgba(184, 232, 106, 0.2);
            outline: none;
        }

        .whitepaper-card .whitepaper-form button {
            background: var(--primary);
            color: #F5F3EE;
            border: none;
            padding: 10px 18px;
            border-radius: var(--radius-sm);
            font-size: 14px;
            font-weight: 500;
            cursor: pointer;
            transition: all var(--transition-base);
            white-space: nowrap;
        }

        .whitepaper-card .whitepaper-form button:hover {
            background: var(--accent-dark);
            color: var(--primary);
        }

        /* ===== Stats Bar ===== */
        .stats-bar {
            background: var(--primary-light);
            padding: 28px 0;
            border-bottom: 1px solid rgba(245, 243, 238, 0.06);
        }

        .stats-bar .container-wide {
            display: flex;
            flex-wrap: wrap;
            gap: 32px;
            justify-content: space-between;
            align-items: center;
        }

        .stats-bar .stat-item {
            display: flex;
            align-items: baseline;
            gap: 10px;
            color: #F5F3EE;
        }

        .stats-bar .stat-item .stat-number {
            font-size: 32px;
            font-weight: 700;
            color: var(--accent);
            letter-spacing: -0.01em;
        }

        .stats-bar .stat-item .stat-label {
            font-size: 14px;
            color: rgba(245, 243, 238, 0.6);
            letter-spacing: 0.03em;
        }

        /* ===== Section Base ===== */
        .section-block {
            padding: 72px 0;
        }

        .section-block.alt-bg {
            background: #fff;
        }

        .section-block.dark-bg {
            background: var(--primary);
        }

        .section-header {
            margin-bottom: 44px;
        }

        .section-header .section-tag {
            display: inline-block;
            color: var(--accent-dark);
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            margin-bottom: 10px;
        }

        .section-header .section-tag.dark {
            color: var(--accent);
        }

        .section-header h2 {
            font-size: 36px;
            font-weight: 700;
            line-height: 1.2;
            color: var(--text-primary);
            margin: 0 0 12px;
            letter-spacing: -0.01em;
        }

        .section-header.dark h2 {
            color: #F5F3EE;
        }

        .section-header p {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 560px;
            margin: 0;
            line-height: 1.75;
        }

        .section-header.dark p {
            color: rgba(245, 243, 238, 0.7);
        }

        /* ===== Scenario Showcase ===== */
        .scenario-showcase {
            display: flex;
            flex-direction: column;
            gap: 48px;
        }

        .scenario-item {
            display: flex;
            gap: 32px;
            align-items: center;
            background: #fff;
            border-radius: var(--radius-lg);
            padding: 32px;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-base);
            border: 1px solid var(--border-color);
        }

        .scenario-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }

        .scenario-item.reverse {
            flex-direction: row-reverse;
        }

        .scenario-item .scenario-image {
            flex: 0 0 38%;
            max-width: 38%;
            border-radius: var(--radius-md);
            overflow: hidden;
            position: relative;
        }

        .scenario-item .scenario-image img {
            width: 100%;
            aspect-ratio: 4/3;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

        .scenario-item:hover .scenario-image img {
            transform: scale(1.03);
        }

        .scenario-item .scenario-content {
            flex: 1;
        }

        .scenario-item .scenario-content .scenario-number {
            display: inline-block;
            font-size: 48px;
            font-weight: 700;
            color: var(--border-color);
            line-height: 1;
            margin-bottom: 12px;
            letter-spacing: -0.02em;
        }

        .scenario-item .scenario-content h3 {
            font-size: 24px;
            font-weight: 650;
            color: var(--text-primary);
            margin: 0 0 12px;
            line-height: 1.3;
        }

        .scenario-item .scenario-content p {
            font-size: 15px;
            line-height: 1.8;
            color: var(--text-secondary);
            margin: 0 0 16px;
        }

        .scenario-item .scenario-content .scenario-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .scenario-item .scenario-content .scenario-tags .tag-chip {
            display: inline-block;
            padding: 4px 12px;
            background: rgba(184, 232, 106, 0.12);
            color: var(--accent-dark);
            font-size: 12px;
            font-weight: 500;
            border-radius: 999px;
            letter-spacing: 0.04em;
        }

        /* ===== Filter Tag Bar ===== */
        .filter-tag-bar {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-bottom: 40px;
        }

        .filter-tag-bar .filter-tag {
            display: inline-block;
            padding: 8px 18px;
            background: #fff;
            color: var(--text-secondary);
            font-size: 14px;
            font-weight: 500;
            border-radius: 999px;
            border: 1px solid var(--border-color);
            cursor: pointer;
            transition: all var(--transition-base);
            letter-spacing: 0.02em;
        }

        .filter-tag-bar .filter-tag:hover {
            border-color: var(--accent-dark);
            color: var(--accent-dark);
            background: rgba(184, 232, 106, 0.06);
        }

        .filter-tag-bar .filter-tag.active {
            background: var(--primary);
            color: #F5F3EE;
            border-color: var(--primary);
        }

        /* ===== Case List ===== */
        .case-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }

        .case-card {
            display: flex;
            gap: 20px;
            background: #fff;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            transition: all var(--transition-base);
            padding: 20px;
        }

        .case-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
            border-color: rgba(184, 232, 106, 0.4);
        }

        .case-card .case-date-col {
            flex: 0 0 72px;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            background: var(--primary);
            border-radius: var(--radius-md);
            padding: 12px 8px;
            min-height: 80px;
        }

        .case-card .case-date-col .case-day {
            font-size: 26px;
            font-weight: 700;
            color: var(--accent);
            line-height: 1;
        }

        .case-card .case-date-col .case-month {
            font-size: 12px;
            color: rgba(245, 243, 238, 0.7);
            letter-spacing: 0.06em;
            margin-top: 4px;
        }

        .case-card .case-body {
            flex: 1;
            min-width: 0;
        }

        .case-card .case-body .case-label {
            display: inline-block;
            font-size: 12px;
            font-weight: 500;
            color: var(--accent-dark);
            letter-spacing: 0.06em;
            text-transform: uppercase;
            margin-bottom: 6px;
        }

        .case-card .case-body h3 {
            font-size: 18px;
            font-weight: 650;
            color: var(--text-primary);
            margin: 0 0 8px;
            line-height: 1.4;
        }

        .case-card .case-body p {
            font-size: 14px;
            line-height: 1.7;
            color: var(--text-secondary);
            margin: 0 0 12px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .case-card .case-body .case-link {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 13px;
            font-weight: 500;
            color: var(--text-primary);
            transition: all var(--transition-base);
            position: relative;
        }

        .case-card .case-body .case-link::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 1px;
            background: var(--accent-dark);
            transition: width var(--transition-base);
        }

        .case-card .case-body .case-link:hover {
            color: var(--accent-dark);
        }

        .case-card .case-body .case-link:hover::after {
            width: 100%;
        }

        .case-card .case-body .case-link i {
            font-size: 12px;
            transition: transform var(--transition-base);
        }

        .case-card .case-body .case-link:hover i {
            transform: translateX(3px);
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            border-top: 1px solid var(--border-color);
            transition: all var(--transition-base);
        }

        .faq-item:last-child {
            border-bottom: 1px solid var(--border-color);
        }

        .faq-item .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 20px 0;
            cursor: pointer;
            font-size: 18px;
            font-weight: 600;
            color: var(--text-primary);
            transition: color var(--transition-base);
            user-select: none;
        }

        .faq-item .faq-question:hover {
            color: var(--accent-dark);
        }

        .faq-item .faq-question .faq-icon {
            font-size: 20px;
            font-weight: 300;
            transition: transform 0.3s ease;
            flex-shrink: 0;
            margin-left: 12px;
            color: var(--text-secondary);
        }

        .faq-item.active .faq-question .faq-icon {
            transform: rotate(45deg);
            color: var(--accent-dark);
        }

        .faq-item .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease, padding 0.3s ease;
            padding: 0;
        }

        .faq-item.active .faq-answer {
            max-height: 320px;
            padding: 0 0 20px;
        }

        .faq-item .faq-answer p {
            margin: 0;
            font-size: 15px;
            line-height: 1.8;
            color: var(--text-secondary);
            max-width: 720px;
        }

        /* ===== CTA Section ===== */
        .cta-section {
            background: var(--primary);
            padding: 64px 0;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(184, 232, 106, 0.08) 0%, transparent 60%);
            z-index: 0;
        }

        .cta-section .container-wide {
            position: relative;
            z-index: 1;
            text-align: center;
        }

        .cta-section h2 {
            font-size: 32px;
            font-weight: 700;
            color: #F5F3EE;
            margin: 0 0 16px;
            line-height: 1.25;
        }

        .cta-section p {
            font-size: 16px;
            color: rgba(245, 243, 238, 0.7);
            max-width: 520px;
            margin: 0 auto 28px;
            line-height: 1.75;
        }

        .cta-section .cta-form {
            display: flex;
            gap: 10px;
            max-width: 480px;
            margin: 0 auto;
        }

        .cta-section .cta-form input {
            flex: 1;
            padding: 14px 18px;
            border: 1px solid rgba(245, 243, 238, 0.25);
            border-radius: var(--radius-sm);
            font-size: 15px;
            background: rgba(245, 243, 238, 0.08);
            color: #F5F3EE;
            transition: all var(--transition-base);
        }

        .cta-section .cta-form input::placeholder {
            color: rgba(245, 243, 238, 0.5);
        }

        .cta-section .cta-form input:focus {
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(184, 232, 106, 0.2);
            outline: none;
            background: rgba(245, 243, 238, 0.12);
        }

        .cta-section .cta-form button {
            padding: 14px 24px;
            background: var(--accent);
            color: var(--primary);
            border: none;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 600;
            cursor: pointer;
            transition: all var(--transition-base);
            white-space: nowrap;
            letter-spacing: 0.01em;
        }

        .cta-section .cta-form button:hover {
            background: #d0f59a;
            transform: translateY(-1px);
            box-shadow: var(--shadow-md);
        }

        .cta-section .cta-form button:active {
            transform: scale(0.97);
        }

        /* ===== Footer ===== */
        .footer-section {
            background: #0c0f0d;
            color: rgba(245, 243, 238, 0.8);
            padding: 56px 0 28px;
            border-top: 1px solid rgba(245, 243, 238, 0.05);
        }

        .footer-section .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 40px;
        }

        .footer-section .footer-brand .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 16px;
        }

        .footer-section .footer-brand .footer-logo .logo-badge {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 32px;
            height: 32px;
            background: var(--accent);
            color: var(--primary);
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 700;
        }

        .footer-section .footer-brand .footer-logo span:last-child {
            font-size: 18px;
            font-weight: 700;
            color: #F5F3EE;
        }

        .footer-section .footer-brand p {
            font-size: 14px;
            line-height: 1.75;
            color: rgba(245, 243, 238, 0.6);
            margin: 0;
            max-width: 320px;
        }

        .footer-section .footer-col h4 {
            font-size: 14px;
            font-weight: 600;
            color: #F5F3EE;
            margin: 0 0 14px;
            letter-spacing: 0.05em;
        }

        .footer-section .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .footer-section .footer-col ul li {
            margin-bottom: 8px;
        }

        .footer-section .footer-col ul li a {
            font-size: 14px;
            color: rgba(245, 243, 238, 0.6);
            transition: color var(--transition-base);
        }

        .footer-section .footer-col ul li a:hover {
            color: var(--accent);
        }

        .footer-section .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            padding-top: 20px;
            border-top: 1px solid rgba(245, 243, 238, 0.06);
            font-size: 13px;
            color: rgba(245, 243, 238, 0.5);
        }

        .footer-section .footer-bottom .footer-beian {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
        }

        .footer-section .footer-bottom a {
            color: rgba(245, 243, 238, 0.5);
            transition: color var(--transition-base);
        }

        .footer-section .footer-bottom a:hover {
            color: var(--accent);
        }

        /* ===== Page Load Animation ===== */
        .fade-in-up {
            opacity: 0;
            transform: translateY(12px);
            transition: opacity 0.4s ease, transform 0.4s ease;
        }

        .fade-in-up.visible {
            opacity: 1;
            transform: translateY(0);
        }

        .fade-in-up.delay-1 { transition-delay: 0.08s; }
        .fade-in-up.delay-2 { transition-delay: 0.16s; }
        .fade-in-up.delay-3 { transition-delay: 0.24s; }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .app-sidebar {
                transform: translateX(-100%);
            }
            .app-sidebar.mobile-show {
                transform: translateX(0);
            }
            .main-content {
                margin-left: 0;
            }
            .mobile-header {
                display: flex;
            }
            .mobile-drawer {
                display: flex;
            }
            .main-content {
                padding-top: var(--mobile-header-height);
            }
            .hero-whitepaper {
                padding: 56px 0 48px;
            }
            .hero-whitepaper h1 {
                font-size: 36px;
            }
            .hero-whitepaper .hero-subtitle {
                font-size: 16px;
            }
            .whitepaper-card {
                margin-left: 0;
                max-width: 100%;
            }
            .scenario-item {
                flex-direction: column !important;
                gap: 20px;
                padding: 20px;
            }
            .scenario-item .scenario-image {
                flex: 0 0 auto;
                max-width: 100%;
                width: 100%;
            }
            .scenario-item .scenario-image img {
                aspect-ratio: 16/9;
            }
            .case-list {
                grid-template-columns: 1fr;
            }
            .stats-bar .container-wide {
                gap: 20px;
                justify-content: flex-start;
            }
            .section-block {
                padding: 48px 0;
            }
            .section-header h2 {
                font-size: 28px;
            }
            .footer-section .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
        }

        @media (max-width: 640px) {
            .container-wide {
                padding: 0 16px;
            }
            .hero-whitepaper h1 {
                font-size: 28px;
            }
            .hero-whitepaper .hero-subtitle {
                font-size: 15px;
            }
            .hero-whitepaper .hero-cta-group {
                flex-direction: column;
                gap: 10px;
            }
            .btn-primary,
            .btn-secondary {
                width: 100%;
                justify-content: center;
            }
            .hero-whitepaper .hero-meta-row {
                gap: 12px;
                font-size: 12px;
                flex-wrap: wrap;
            }
            .stats-bar {
                padding: 20px 0;
            }
            .stats-bar .stat-item .stat-number {
                font-size: 24px;
            }
            .stats-bar .stat-item .stat-label {
                font-size: 12px;
            }
            .section-block {
                padding: 36px 0;
            }
            .section-header h2 {
                font-size: 24px;
            }
            .section-header p {
                font-size: 14px;
            }
            .scenario-item {
                padding: 16px;
            }
            .scenario-item .scenario-content h3 {
                font-size: 20px;
            }
            .scenario-item .scenario-content .scenario-number {
                font-size: 36px;
            }
            .filter-tag-bar {
                gap: 8px;
            }
            .filter-tag-bar .filter-tag {
                padding: 6px 14px;
                font-size: 12px;
            }
            .case-card {
                flex-direction: column;
                gap: 12px;
                padding: 16px;
            }
            .case-card .case-date-col {
                flex: 0 0 auto;
                flex-direction: row;
                gap: 8px;
                min-height: auto;
                padding: 8px 12px;
                justify-content: flex-start;
            }
            .case-card .case-date-col .case-day {
                font-size: 20px;
            }
            .cta-section {
                padding: 40px 0;
            }
            .cta-section h2 {
                font-size: 24px;
            }
            .cta-section .cta-form {
                flex-direction: column;
                gap: 8px;
            }
            .footer-section .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .footer-section .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 10px;
            }
            .footer-section .footer-bottom .footer-beian {
                flex-direction: column;
                gap: 6px;
            }
            .whitepaper-card .whitepaper-form {
                flex-direction: column;
            }
        }

        @media (prefers-reduced-motion: reduce) {
            *,
            *::before,
            *::after {
                animation-duration: 0.01ms !important;
                animation-iteration-count: 1 !important;
                transition-duration: 0.01ms !important;
            }
            html {
                scroll-behavior: auto;
            }
            .fade-in-up {
                opacity: 1;
                transform: none;
            }
        }

/* roulang page: category4 */
:root {
        --primary: #101512;
        --primary-light: #1c241e;
        --accent: #B8E86A;
        --accent-dark: #9ed04e;
        --gold: #E5C07B;
        --bg-warm: #F5F3EE;
        --text-primary: #1A1D1B;
        --text-secondary: #6A706C;
        --border-color: #E1DED6;
        --success-green: #2DAF64;
        --warning-red: #E95D3F;
        --radius-sm: 4px;
        --radius-md: 6px;
        --radius-lg: 8px;
        --shadow-sm: 0 1px 2px rgba(16, 21, 18, 0.05);
        --shadow-md: 0 8px 24px rgba(16, 21, 18, 0.08);
        --shadow-lg: 0 14px 32px rgba(16, 21, 18, 0.12);
        --sidebar-width: 260px;
        --header-height: 72px;
        --mobile-header-height: 64px;
        --transition-base: 0.25s ease;
        --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", "Helvetica Neue", Arial, sans-serif;
    }
    html {
        scroll-behavior: smooth;
        -webkit-font-smoothing: antialiased;
        -moz-osx-font-smoothing: grayscale;
    }
    body {
        font-family: var(--font-sans);
        font-size: 16px;
        line-height: 1.75;
        color: var(--text-primary);
        background-color: var(--bg-warm);
        margin: 0;
        padding: 0;
        overflow-x: hidden;
    }
    img {
        max-width: 100%;
        height: auto;
        display: block;
    }
    a {
        color: var(--text-primary);
        text-decoration: none;
        transition: color var(--transition-base);
    }
    a:hover,
    a:focus {
        color: var(--accent-dark);
        outline: none;
    }
    a:focus-visible {
        outline: 2px solid var(--accent);
        outline-offset: 3px;
        border-radius: var(--radius-sm);
    }
    button,
    input {
        font-family: var(--font-sans);
        border-radius: var(--radius-sm);
    }
    button:focus-visible,
    input:focus-visible {
        outline: 2px solid var(--accent);
        outline-offset: 2px;
    }
    .container-wide {
        max-width: 1280px;
        margin: 0 auto;
        padding: 0 32px;
    }
    .grid-container {
        max-width: 1280px;
        padding: 0 32px;
    }
    .grid-container.fluid {
        max-width: 100%;
        padding: 0;
    }
    :root {
        --primary: #101512;
        --primary-light: #1c241e;
        --accent: #B8E86A;
        --accent-dark: #9ed04e;
        --gold: #E5C07B;
        --bg-warm: #F5F3EE;
        --text-primary: #1A1D1B;
        --text-secondary: #6A706C;
        --border-color: #E1DED6;
        --success-green: #2DAF64;
        --warning-red: #E95D3F;
        --radius-sm: 4px;
        --radius-md: 6px;
        --radius-lg: 8px;
        --shadow-sm: 0 1px 2px rgba(16, 21, 18, 0.05);
        --shadow-md: 0 8px 24px rgba(16, 21, 18, 0.08);
        --shadow-lg: 0 14px 32px rgba(16, 21, 18, 0.12);
        --sidebar-width: 260px;
        --header-height: 72px;
        --mobile-header-height: 64px;
        --transition-base: 0.25s ease;
        --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", "Helvetica Neue", Arial, sans-serif;
    }
    /* ===== Sidebar Navigation ===== */
    .app-sidebar {
        position: fixed;
        left: 0;
        top: 0;
        width: var(--sidebar-width);
        height: 100vh;
        background-color: var(--primary);
        color: #F5F3EE;
        z-index: 1000;
        display: flex;
        flex-direction: column;
        transition: transform 0.3s ease;
    }
    .sidebar-logo {
        height: var(--header-height);
        display: flex;
        align-items: center;
        padding: 0 24px;
        border-bottom: 1px solid rgba(245, 243, 238, 0.08);
        flex-shrink: 0;
    }
    .sidebar-logo a {
        font-size: 20px;
        font-weight: 700;
        color: #F5F3EE;
        letter-spacing: 0.02em;
        white-space: nowrap;
        display: flex;
        align-items: center;
        gap: 10px;
    }
    .sidebar-logo a:hover {
        color: var(--accent);
    }
    .sidebar-logo .logo-badge {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        width: 36px;
        height: 36px;
        background: var(--accent);
        color: var(--primary);
        border-radius: var(--radius-md);
        font-size: 16px;
        font-weight: 700;
        flex-shrink: 0;
    }
    .sidebar-nav {
        flex: 1;
        padding: 24px 12px;
        overflow-y: auto;
    }
    .sidebar-nav .nav-label {
        font-size: 12px;
        text-transform: uppercase;
        letter-spacing: 0.1em;
        color: rgba(245, 243, 238, 0.5);
        padding: 0 12px;
        margin-bottom: 12px;
        font-weight: 500;
    }
    .sidebar-nav ul {
        list-style: none;
        margin: 0;
        padding: 0;
    }
    .sidebar-nav li {
        margin-bottom: 2px;
    }
    .sidebar-nav a {
        display: flex;
        align-items: center;
        padding: 12px 16px;
        color: rgba(245, 243, 238, 0.85);
        font-size: 15px;
        font-weight: 500;
        border-radius: var(--radius-sm);
        position: relative;
        transition: all var(--transition-base);
        letter-spacing: 0.01em;
    }
    .sidebar-nav a:hover {
        background: rgba(184, 232, 106, 0.08);
        color: #F5F3EE;
    }
    .sidebar-nav a.active {
        color: var(--accent);
        background: rgba(184, 232, 106, 0.12);
    }
    .sidebar-nav a.active::before {
        content: '';
        position: absolute;
        left: -12px;
        top: 50%;
        transform: translateY(-50%);
        width: 3px;
        height: 28px;
        background: var(--accent);
        border-radius: 0 2px 2px 0;
    }
    .sidebar-nav a .nav-icon {
        margin-right: 12px;
        font-size: 16px;
        opacity: 0.7;
        flex-shrink: 0;
    }
    .sidebar-footer {
        padding: 20px 16px;
        border-top: 1px solid rgba(245, 243, 238, 0.08);
        flex-shrink: 0;
    }
    .sidebar-login-btn {
        display: flex;
        align-items: center;
        justify-content: center;
        gap: 8px;
        width: 100%;
        padding: 10px 16px;
        background: transparent;
        border: 1px solid rgba(245, 243, 238, 0.3);
        color: #F5F3EE;
        border-radius: var(--radius-sm);
        font-size: 14px;
        font-weight: 500;
        cursor: pointer;
        transition: all var(--transition-base);
        text-align: center;
    }
    .sidebar-login-btn:hover {
        background: rgba(184, 232, 106, 0.12);
        border-color: var(--accent);
        color: var(--accent);
    }

    /* ===== Mobile Header ===== */
    .mobile-header {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        height: var(--mobile-header-height);
        background: var(--primary);
        z-index: 999;
        align-items: center;
        padding: 0 16px;
        gap: 14px;
        box-shadow: 0 1px 4px rgba(16, 21, 18, 0.2);
    }
    .mobile-header .hamburger {
        display: flex;
        flex-direction: column;
        justify-content: center;
        gap: 5px;
        width: 40px;
        height: 40px;
        background: transparent;
        border: none;
        cursor: pointer;
        padding: 8px;
        border-radius: var(--radius-sm);
        transition: background var(--transition-base);
    }
    .mobile-header .hamburger:hover {
        background: rgba(184, 232, 106, 0.12);
    }
    .mobile-header .hamburger span {
        display: block;
        width: 22px;
        height: 2px;
        background: #F5F3EE;
        border-radius: 2px;
        transition: all var(--transition-base);
    }
    .mobile-header .mobile-logo {
        font-size: 17px;
        font-weight: 700;
        color: #F5F3EE;
        letter-spacing: 0.02em;
        white-space: nowrap;
        display: flex;
        align-items: center;
        gap: 8px;
    }
    .mobile-header .mobile-logo .logo-badge {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        width: 30px;
        height: 30px;
        background: var(--accent);
        color: var(--primary);
        border-radius: var(--radius-sm);
        font-size: 13px;
        font-weight: 700;
        flex-shrink: 0;
    }
    .mobile-header .mobile-spacer {
        flex: 1;
    }
    .overlay {
        display: none;
        position: fixed;
        inset: 0;
        background: rgba(16, 21, 18, 0.55);
        z-index: 998;
        opacity: 0;
        transition: opacity 0.3s ease;
    }
    .overlay.is-visible {
        display: block;
        opacity: 1;
    }

    /* ===== Main Content ===== */
    .main-content {
        margin-left: var(--sidebar-width);
        min-height: 100vh;
        display: flex;
        flex-direction: column;
    }

    /* ===== Page Hero ===== */
    .page-hero {
        position: relative;
        min-height: 48vh;
        background-image: url('/assets/images/backpic/back-2.webp');
        background-size: cover;
        background-position: center;
        display: flex;
        align-items: flex-end;
        padding: 80px 0 56px;
        overflow: hidden;
    }
    .page-hero::before {
        content: '';
        position: absolute;
        inset: 0;
        background: linear-gradient(180deg, rgba(16, 21, 18, 0.45) 0%, rgba(16, 21, 18, 0.72) 55%, rgba(16, 21, 18, 0.88) 100%);
        z-index: 1;
    }
    .page-hero .hero-inner {
        position: relative;
        z-index: 2;
        max-width: 780px;
        color: #F5F3EE;
    }
    .page-hero .hero-kicker {
        display: inline-block;
        font-size: 13px;
        font-weight: 500;
        letter-spacing: 0.08em;
        text-transform: uppercase;
        color: var(--accent);
        margin-bottom: 12px;
    }
    .page-hero h1 {
        font-size: 48px;
        font-weight: 700;
        line-height: 1.15;
        margin: 0 0 16px;
        color: #F5F3EE;
    }
    .page-hero .hero-desc {
        font-size: 17px;
        line-height: 1.75;
        color: rgba(245, 243, 238, 0.88);
        max-width: 640px;
        margin: 0;
    }
    .page-hero .hero-meta {
        display: flex;
        align-items: center;
        gap: 16px;
        margin-top: 20px;
        flex-wrap: wrap;
    }
    .page-hero .hero-meta span {
        font-size: 13px;
        color: rgba(245, 243, 238, 0.72);
        display: inline-flex;
        align-items: center;
        gap: 6px;
    }
    .page-hero .hero-meta span::before {
        content: '•';
        color: var(--accent);
        font-size: 16px;
    }

    /* ===== Filter Bar ===== */
    .filter-bar {
        background: #FFFFFF;
        border-bottom: 1px solid var(--border-color);
        padding: 14px 0;
        position: sticky;
        top: 0;
        z-index: 50;
        box-shadow: var(--shadow-sm);
    }
    .filter-bar .filter-inner {
        display: flex;
        align-items: center;
        gap: 10px;
        flex-wrap: wrap;
    }
    .filter-bar .filter-label {
        font-size: 13px;
        font-weight: 600;
        color: var(--text-secondary);
        letter-spacing: 0.04em;
        margin-right: 6px;
        white-space: nowrap;
    }
    .filter-tag {
        display: inline-flex;
        align-items: center;
        padding: 7px 16px;
        background: var(--bg-warm);
        border: 1px solid var(--border-color);
        border-radius: 20px;
        font-size: 13px;
        font-weight: 500;
        color: var(--text-secondary);
        cursor: pointer;
        transition: all var(--transition-base);
        white-space: nowrap;
    }
    .filter-tag:hover {
        border-color: var(--accent-dark);
        color: var(--text-primary);
        background: #FFFFFF;
    }
    .filter-tag.is-active {
        background: var(--primary);
        color: var(--accent);
        border-color: var(--primary);
    }

    /* ===== Section Base ===== */
    .section-block {
        padding: 64px 0;
    }
    .section-block.alt-bg {
        background: #FFFFFF;
    }
    .section-block.dark-bg {
        background: var(--primary);
        color: #F5F3EE;
    }
    .section-heading {
        margin-bottom: 40px;
    }
    .section-heading h2 {
        font-size: 34px;
        font-weight: 700;
        line-height: 1.2;
        margin: 0 0 12px;
        color: inherit;
    }
    .section-heading p {
        font-size: 16px;
        line-height: 1.75;
        color: var(--text-secondary);
        margin: 0;
        max-width: 640px;
    }
    .section-heading.center {
        text-align: center;
    }
    .section-heading.center p {
        margin-left: auto;
        margin-right: auto;
    }
    .dark-bg .section-heading p {
        color: rgba(245, 243, 238, 0.72);
    }
    .dark-bg .section-heading h2 {
        color: #F5F3EE;
    }

    /* ===== Value Cards (Asymmetrical) ===== */
    .value-grid {
        display: grid;
        grid-template-columns: 1.2fr 0.8fr;
        gap: 24px;
    }
    .value-grid .value-card {
        background: #FFFFFF;
        border: 1px solid var(--border-color);
        border-radius: var(--radius-lg);
        padding: 32px 28px;
        transition: all var(--transition-base);
        box-shadow: var(--shadow-sm);
        position: relative;
        overflow: hidden;
    }
    .value-grid .value-card:hover {
        box-shadow: var(--shadow-lg);
        transform: translateY(-4px);
        border-color: rgba(184, 232, 106, 0.5);
    }
    .value-grid .value-card:first-child {
        grid-row: span 2;
        padding: 40px 32px;
        background: linear-gradient(135deg, #1c241e 0%, #101512 100%);
        color: #F5F3EE;
        border-color: var(--primary);
    }
    .value-grid .value-card:first-child:hover {
        border-color: var(--accent);
    }
    .value-card .card-icon {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        width: 48px;
        height: 48px;
        background: rgba(184, 232, 106, 0.12);
        border-radius: var(--radius-md);
        font-size: 22px;
        margin-bottom: 16px;
    }
    .value-card:first-child .card-icon {
        background: var(--accent);
        color: var(--primary);
    }
    .value-card h3 {
        font-size: 20px;
        font-weight: 650;
        margin: 0 0 10px;
        line-height: 1.3;
        color: inherit;
    }
    .value-card p {
        font-size: 15px;
        line-height: 1.7;
        color: var(--text-secondary);
        margin: 0;
    }
    .value-card:first-child p {
        color: rgba(245, 243, 238, 0.78);
    }

    /* ===== Content Cards List ===== */
    .content-list {
        display: flex;
        flex-direction: column;
        gap: 20px;
    }
    .content-card {
        display: flex;
        align-items: stretch;
        background: #FFFFFF;
        border: 1px solid var(--border-color);
        border-radius: var(--radius-lg);
        overflow: hidden;
        box-shadow: var(--shadow-sm);
        transition: all var(--transition-base);
    }
    .content-card:hover {
        box-shadow: var(--shadow-md);
        transform: translateY(-2px);
    }
    .content-card .card-tag-col {
        flex: 0 0 90px;
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 8px;
        background: var(--bg-warm);
        padding: 16px 10px;
        border-right: 1px solid var(--border-color);
        text-align: center;
    }
    .content-card .card-tag-col .tag-badge {
        display: inline-flex;
        padding: 4px 10px;
        background: var(--accent);
        color: var(--primary);
        font-size: 11px;
        font-weight: 600;
        border-radius: 20px;
        letter-spacing: 0.04em;
        white-space: nowrap;
    }
    .content-card .card-tag-col .tag-date {
        font-size: 12px;
        color: var(--text-secondary);
        font-weight: 500;
    }
    .content-card .card-body {
        flex: 1;
        padding: 20px 24px;
        display: flex;
        flex-direction: column;
        justify-content: center;
    }
    .content-card .card-body h3 {
        font-size: 20px;
        font-weight: 650;
        line-height: 1.3;
        margin: 0 0 8px;
        color: var(--text-primary);
        transition: color var(--transition-base);
    }
    .content-card:hover .card-body h3 {
        color: var(--accent-dark);
    }
    .content-card .card-body p {
        font-size: 14px;
        line-height: 1.7;
        color: var(--text-secondary);
        margin: 0 0 12px;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
    }
    .content-card .card-body .read-more {
        font-size: 13px;
        font-weight: 600;
        color: var(--text-primary);
        text-decoration: underline;
        transition: color var(--transition-base);
        cursor: pointer;
        display: inline-flex;
        align-items: center;
        gap: 4px;
    }
    .content-card .card-body .read-more:hover {
        color: var(--accent-dark);
    }
    .content-card .card-image {
        flex: 0 0 32%;
        overflow: hidden;
    }
    .content-card .card-image img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        aspect-ratio: 16 / 10;
        transition: transform var(--transition-base);
    }
    .content-card:hover .card-image img {
        transform: scale(1.03);
    }

    /* ===== Plan Comparison Table ===== */
    .plan-table-wrap {
        overflow-x: auto;
        background: #FFFFFF;
        border-radius: var(--radius-lg);
        border: 1px solid var(--border-color);
        box-shadow: var(--shadow-md);
    }
    .plan-table {
        width: 100%;
        min-width: 720px;
        border-collapse: collapse;
        font-size: 14px;
    }
    .plan-table th {
        padding: 18px 16px;
        text-align: left;
        font-size: 14px;
        font-weight: 600;
        color: var(--text-secondary);
        border-bottom: 1px solid var(--border-color);
        background: var(--bg-warm);
        letter-spacing: 0.02em;
    }
    .plan-table th.plan-highlight {
        background: rgba(184, 232, 106, 0.12);
        color: var(--primary);
    }
    .plan-table td {
        padding: 14px 16px;
        border-bottom: 1px solid var(--border-color);
        color: var(--text-primary);
        line-height: 1.55;
    }
    .plan-table tr:last-child td {
        border-bottom: none;
    }
    .plan-table .check-icon {
        color: var(--success-green);
        font-weight: 700;
    }
    .plan-table .dash-icon {
        color: var(--text-secondary);
        opacity: 0.5;
    }

    /* ===== Process Steps ===== */
    .steps-grid {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 20px;
    }
    .step-item {
        text-align: left;
        padding: 24px 20px;
        background: #FFFFFF;
        border: 1px solid var(--border-color);
        border-radius: var(--radius-md);
        box-shadow: var(--shadow-sm);
        transition: all var(--transition-base);
        position: relative;
    }
    .step-item:hover {
        box-shadow: var(--shadow-md);
        transform: translateY(-3px);
        border-color: rgba(184, 232, 106, 0.5);
    }
    .step-item .step-number {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        width: 36px;
        height: 36px;
        background: var(--primary);
        color: var(--accent);
        border-radius: 50%;
        font-size: 16px;
        font-weight: 700;
        margin-bottom: 12px;
    }
    .step-item h3 {
        font-size: 17px;
        font-weight: 650;
        margin: 0 0 8px;
        line-height: 1.3;
    }
    .step-item p {
        font-size: 13px;
        line-height: 1.65;
        color: var(--text-secondary);
        margin: 0;
    }

    /* ===== FAQ ===== */
    .faq-list {
        max-width: 800px;
        margin: 0 auto;
    }
    .faq-item {
        border-top: 1px solid var(--border-color);
        overflow: hidden;
    }
    .faq-item:last-child {
        border-bottom: 1px solid var(--border-color);
    }
    .faq-question {
        display: flex;
        align-items: center;
        justify-content: space-between;
        padding: 18px 8px;
        cursor: pointer;
        font-size: 17px;
        font-weight: 600;
        color: var(--text-primary);
        transition: color var(--transition-base);
        background: transparent;
        border: none;
        width: 100%;
        text-align: left;
        gap: 16px;
    }
    .faq-question:hover {
        color: var(--accent-dark);
    }
    .faq-question .faq-icon {
        flex-shrink: 0;
        width: 28px;
        height: 28px;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        border: 1px solid var(--border-color);
        border-radius: 50%;
        font-size: 18px;
        font-weight: 400;
        color: var(--text-secondary);
        transition: all 250ms ease;
    }
    .faq-item.is-active .faq-question .faq-icon {
        transform: rotate(45deg);
        border-color: var(--accent);
        color: var(--accent-dark);
        background: rgba(184, 232, 106, 0.1);
    }
    .faq-answer {
        max-height: 0;
        overflow: hidden;
        transition: max-height 250ms ease;
    }
    .faq-answer-inner {
        padding: 0 8px 20px;
        font-size: 15px;
        line-height: 1.8;
        color: var(--text-secondary);
        max-width: 720px;
    }

    /* ===== CTA Section ===== */
    .cta-section {
        background: var(--primary);
        color: #F5F3EE;
        padding: 56px 0;
        text-align: center;
    }
    .cta-section h2 {
        font-size: 32px;
        font-weight: 700;
        margin: 0 0 12px;
        color: #F5F3EE;
        line-height: 1.2;
    }
    .cta-section p {
        font-size: 16px;
        color: rgba(245, 243, 238, 0.72);
        margin: 0 auto 24px;
        max-width: 520px;
        line-height: 1.7;
    }
    .btn {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: 8px;
        padding: 12px 28px;
        border-radius: var(--radius-sm);
        font-size: 15px;
        font-weight: 600;
        cursor: pointer;
        transition: all var(--transition-base);
        border: none;
        letter-spacing: 0.01em;
        text-align: center;
    }
    .btn-primary {
        background: var(--accent);
        color: var(--primary);
    }
    .btn-primary:hover {
        background: var(--accent-dark);
        color: var(--primary);
        transform: translateY(-1px);
        box-shadow: var(--shadow-md);
    }
    .btn-primary:active {
        transform: scale(0.97);
    }
    .btn-secondary {
        background: transparent;
        color: #F5F3EE;
        border: 1px solid rgba(245, 243, 238, 0.4);
    }
    .btn-secondary:hover {
        border-color: var(--accent);
        color: var(--accent);
        background: rgba(184, 232, 106, 0.08);
    }
    .btn-secondary:active {
        transform: scale(0.97);
    }
    .btn-outline-dark {
        background: transparent;
        color: var(--primary);
        border: 1px solid var(--primary);
    }
    .btn-outline-dark:hover {
        background: var(--primary);
        color: var(--accent);
    }
    .subscribe-form {
        display: flex;
        gap: 10px;
        max-width: 460px;
        margin: 0 auto;
    }
    .subscribe-form input {
        flex: 1;
        padding: 12px 16px;
        border: 1px solid rgba(245, 243, 238, 0.3);
        background: rgba(245, 243, 238, 0.06);
        color: #F5F3EE;
        border-radius: var(--radius-sm);
        font-size: 14px;
        transition: all var(--transition-base);
    }
    .subscribe-form input::placeholder {
        color: rgba(245, 243, 238, 0.5);
    }
    .subscribe-form input:focus {
        border-color: var(--accent);
        box-shadow: 0 0 0 3px rgba(184, 232, 106, 0.15);
        outline: none;
    }

    /* ===== Footer ===== */
    .footer-section {
        background: var(--primary);
        color: rgba(245, 243, 238, 0.78);
        padding: 48px 0 28px;
    }
    .footer-section .footer-grid {
        display: grid;
        grid-template-columns: 1.4fr 1fr 1fr 1fr;
        gap: 32px;
        margin-bottom: 32px;
    }
    .footer-section .footer-logo {
        display: flex;
        align-items: center;
        gap: 10px;
        font-size: 18px;
        font-weight: 700;
        color: #F5F3EE;
        margin-bottom: 12px;
    }
    .footer-section .footer-logo .logo-badge {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        width: 32px;
        height: 32px;
        background: var(--accent);
        color: var(--primary);
        border-radius: var(--radius-sm);
        font-size: 14px;
        font-weight: 700;
        flex-shrink: 0;
    }
    .footer-section .footer-brand p {
        font-size: 14px;
        line-height: 1.7;
        color: rgba(245, 243, 238, 0.6);
        margin: 0;
        max-width: 320px;
    }
    .footer-section .footer-col h4 {
        font-size: 14px;
        font-weight: 600;
        color: #F5F3EE;
        margin: 0 0 12px;
        letter-spacing: 0.04em;
    }
    .footer-section .footer-col ul {
        list-style: none;
        margin: 0;
        padding: 0;
    }
    .footer-section .footer-col ul li {
        margin-bottom: 8px;
    }
    .footer-section .footer-col ul a {
        font-size: 14px;
        color: rgba(245, 243, 238, 0.6);
        transition: color var(--transition-base);
    }
    .footer-section .footer-col ul a:hover {
        color: var(--accent);
    }
    .footer-section .footer-bottom {
        display: flex;
        align-items: center;
        justify-content: space-between;
        flex-wrap: wrap;
        gap: 12px;
        padding-top: 20px;
        border-top: 1px solid rgba(245, 243, 238, 0.08);
        font-size: 13px;
        color: rgba(245, 243, 238, 0.5);
    }
    .footer-section .footer-bottom .footer-beian {
        display: flex;
        gap: 16px;
        flex-wrap: wrap;
    }
    .footer-section .footer-bottom a {
        color: rgba(245, 243, 238, 0.5);
    }
    .footer-section .footer-bottom a:hover {
        color: var(--accent);
    }

    /* ===== Pagination ===== */
    .pagination-bar {
        display: flex;
        justify-content: center;
        align-items: center;
        gap: 8px;
        margin-top: 32px;
    }
    .pagination-bar .page-btn {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        min-width: 40px;
        height: 40px;
        padding: 0 14px;
        border: 1px solid var(--border-color);
        background: #FFFFFF;
        border-radius: var(--radius-sm);
        font-size: 14px;
        font-weight: 500;
        color: var(--text-primary);
        cursor: pointer;
        transition: all var(--transition-base);
    }
    .pagination-bar .page-btn:hover {
        border-color: var(--accent-dark);
        color: var(--accent-dark);
        background: rgba(184, 232, 106, 0.06);
    }
    .pagination-bar .page-btn.is-current {
        background: var(--primary);
        color: var(--accent);
        border-color: var(--primary);
    }
    .pagination-bar .page-btn.load-more {
        width: 100%;
        max-width: 320px;
        background: transparent;
        border-style: dashed;
    }

    /* ===== Animations ===== */
    @keyframes fadeInUp {
        from {
            opacity: 0;
            transform: translateY(12px);
        }
        to {
            opacity: 1;
            transform: translateY(0);
        }
    }
    .anim-in {
        animation: fadeInUp 400ms ease forwards;
        opacity: 0;
    }
    .anim-in.delay-1 {
        animation-delay: 80ms;
    }
    .anim-in.delay-2 {
        animation-delay: 160ms;
    }
    .anim-in.delay-3 {
        animation-delay: 240ms;
    }
    @media (prefers-reduced-motion: reduce) {
        *,
        *::before,
        *::after {
            animation-duration: 0.01ms !important;
            animation-delay: 0ms !important;
            transition-duration: 0.01ms !important;
            transition-delay: 0ms !important;
        }
        .anim-in {
            opacity: 1;
            animation: none;
        }
    }

    /* ===== Responsive ===== */
    @media (max-width: 1024px) {
        :root {
            --sidebar-width: 0px;
        }
        .app-sidebar {
            transform: translateX(-100%);
            width: 280px;
        }
        .app-sidebar.is-open {
            transform: translateX(0);
            box-shadow: var(--shadow-lg);
        }
        .mobile-header {
            display: flex;
        }
        .main-content {
            margin-left: 0;
            padding-top: var(--mobile-header-height);
        }
        .container-wide,
        .grid-container {
            padding-left: 20px;
            padding-right: 20px;
        }
        .page-hero {
            padding: 60px 0 40px;
            min-height: 36vh;
        }
        .page-hero h1 {
            font-size: 36px;
        }
        .value-grid {
            grid-template-columns: 1fr;
        }
        .value-grid .value-card:first-child {
            grid-row: span 1;
        }
        .content-card .card-image {
            flex-basis: 40%;
        }
        .steps-grid {
            grid-template-columns: repeat(2, 1fr);
        }
    }
    @media (max-width: 640px) {
        .page-hero h1 {
            font-size: 28px;
        }
        .page-hero .hero-desc {
            font-size: 15px;
        }
        .section-heading h2 {
            font-size: 24px;
        }
        .section-block {
            padding: 40px 0;
        }
        .content-card {
            flex-direction: column;
        }
        .content-card .card-tag-col {
            flex: 0 0 auto;
            flex-direction: row;
            justify-content: flex-start;
            gap: 12px;
            padding: 10px 16px;
            border-right: none;
            border-bottom: 1px solid var(--border-color);
        }
        .content-card .card-image {
            flex: 0 0 auto;
            width: 100%;
        }
        .steps-grid {
            grid-template-columns: 1fr;
        }
        .footer-section .footer-grid {
            grid-template-columns: 1fr;
            gap: 24px;
        }
        .footer-section .footer-bottom {
            flex-direction: column;
            text-align: center;
            align-items: center;
        }
        .subscribe-form {
            flex-direction: column;
        }
        .filter-bar .filter-inner {
            gap: 6px;
        }
        .filter-tag {
            padding: 5px 12px;
            font-size: 12px;
        }
        .plan-table {
            min-width: 560px;
            font-size: 12px;
        }
    }

.overlay {
            position: fixed;
            top: 0;
            left: 0;
            width: 100vw;
            height: 100vh;
            background: rgba(16, 21, 18, 0.5);
            z-index: 999;
            opacity: 0;
            visibility: hidden;
            transition: opacity 0.3s ease, visibility 0.3s ease;
        }
        .overlay.is-visible {
            opacity: 1;
            visibility: visible;
        }
        details > summary {
            list-style: none;
        }
        details > summary::-webkit-details-marker {
            display: none;
        }
        details[open] > summary span {
            transform: rotate(45deg);
        }

/* roulang page: category5 */
:root {
            --primary: #101512;
            --primary-light: #1c241e;
            --accent: #B8E86A;
            --accent-dark: #9ed04e;
            --gold: #E5C07B;
            --bg-warm: #F5F3EE;
            --text-primary: #1A1D1B;
            --text-secondary: #6A706C;
            --border-color: #E1DED6;
            --success-green: #2DAF64;
            --warning-red: #E95D3F;
            --radius-sm: 4px;
            --radius-md: 6px;
            --radius-lg: 8px;
            --shadow-sm: 0 1px 2px rgba(16,21,18,0.05);
            --shadow-md: 0 8px 24px rgba(16,21,18,0.08);
            --shadow-lg: 0 14px 32px rgba(16,21,18,0.12);
            --sidebar-width: 260px;
            --header-height: 72px;
            --mobile-header-height: 64px;
            --transition-base: 0.25s ease;
            --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", "Helvetica Neue", Arial, sans-serif;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.75;
            color: var(--text-primary);
            background-color: var(--bg-warm);
            margin: 0;
            padding: 0;
            overflow-x: hidden;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        a {
            color: var(--text-primary);
            text-decoration: none;
            transition: color var(--transition-base);
        }

        a:hover,
        a:focus {
            color: var(--accent-dark);
            outline: none;
        }

        a:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 3px;
            border-radius: var(--radius-sm);
        }

        button,
        input {
            font-family: var(--font-sans);
        }

        button:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

        .container-wide {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 32px;
        }

        /* ===== Sidebar Navigation ===== */
        .app-sidebar {
            position: fixed;
            left: 0;
            top: 0;
            width: var(--sidebar-width);
            height: 100vh;
            background-color: var(--primary);
            color: #F5F3EE;
            z-index: 1000;
            display: flex;
            flex-direction: column;
            transition: transform 0.3s ease;
        }

        .sidebar-logo {
            height: var(--header-height);
            display: flex;
            align-items: center;
            padding: 0 24px;
            border-bottom: 1px solid rgba(245,243,238,0.08);
            flex-shrink: 0;
        }

        .sidebar-logo a {
            font-size: 20px;
            font-weight: 700;
            color: #F5F3EE;
            letter-spacing: 0.02em;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .sidebar-logo a:hover {
            color: var(--accent);
        }

        .sidebar-logo .logo-badge {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            background: var(--accent);
            color: var(--primary);
            border-radius: var(--radius-md);
            font-size: 16px;
            font-weight: 700;
            flex-shrink: 0;
        }

        .sidebar-nav {
            flex: 1;
            padding: 24px 12px;
            overflow-y: auto;
        }

        .sidebar-nav .nav-label {
            font-size: 12px;
            text-transform: uppercase;
            letter-spacing: 0.1em;
            color: rgba(245,243,238,0.5);
            padding: 0 12px;
            margin-bottom: 12px;
            font-weight: 500;
        }

        .sidebar-nav ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .sidebar-nav li {
            margin-bottom: 2px;
        }

        .sidebar-nav a {
            display: flex;
            align-items: center;
            padding: 12px 16px;
            color: rgba(245,243,238,0.85);
            font-size: 15px;
            font-weight: 500;
            border-radius: var(--radius-sm);
            position: relative;
            transition: all var(--transition-base);
            letter-spacing: 0.01em;
        }

        .sidebar-nav a:hover {
            background: rgba(184,232,106,0.08);
            color: #F5F3EE;
        }

        .sidebar-nav a.active {
            color: var(--accent);
            background: rgba(184,232,106,0.12);
        }

        .sidebar-nav a.active::before {
            content: '';
            position: absolute;
            left: -12px;
            top: 50%;
            transform: translateY(-50%);
            width: 3px;
            height: 28px;
            background: var(--accent);
            border-radius: 0 2px 2px 0;
        }

        .sidebar-nav a .nav-icon {
            margin-right: 12px;
            font-size: 16px;
            opacity: 0.7;
            flex-shrink: 0;
        }

        .sidebar-footer {
            padding: 20px 16px;
            border-top: 1px solid rgba(245,243,238,0.08);
            flex-shrink: 0;
        }

        .sidebar-login-btn {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            width: 100%;
            padding: 10px 16px;
            background: transparent;
            border: 1px solid rgba(245,243,238,0.3);
            color: #F5F3EE;
            border-radius: var(--radius-sm);
            font-size: 14px;
            font-weight: 500;
            cursor: pointer;
            transition: all var(--transition-base);
            text-align: center;
        }

        .sidebar-login-btn:hover {
            background: rgba(184,232,106,0.12);
            border-color: var(--accent);
            color: var(--accent);
        }

        /* ===== Mobile Header ===== */
        .mobile-header {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: var(--mobile-header-height);
            background: var(--primary);
            z-index: 999;
            align-items: center;
            justify-content: space-between;
            padding: 0 16px;
            box-shadow: 0 2px 8px rgba(16,21,18,0.15);
        }

        .mobile-header .mobile-logo {
            font-size: 16px;
            font-weight: 700;
            color: #F5F3EE;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .mobile-header .mobile-logo .logo-badge {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 28px;
            height: 28px;
            background: var(--accent);
            color: var(--primary);
            border-radius: var(--radius-sm);
            font-size: 13px;
            font-weight: 700;
        }

        .hamburger-btn {
            background: transparent;
            border: none;
            cursor: pointer;
            display: flex;
            flex-direction: column;
            gap: 5px;
            padding: 6px;
        }

        .hamburger-btn span {
            display: block;
            width: 22px;
            height: 2px;
            background: #F5F3EE;
            border-radius: 2px;
            transition: all var(--transition-base);
        }

        .hamburger-btn.active span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }

        .hamburger-btn.active span:nth-child(2) {
            opacity: 0;
        }

        .hamburger-btn.active span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        .drawer-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(16,21,18,0.6);
            z-index: 998;
            opacity: 0;
            transition: opacity 0.3s ease;
        }

        .drawer-overlay.active {
            opacity: 1;
        }

        /* ===== Main Content Area ===== */
        .main-content {
            margin-left: var(--sidebar-width);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        /* ===== Buttons ===== */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--primary);
            color: #F5F3EE;
            border: none;
            border-radius: var(--radius-sm);
            padding: 14px 28px;
            font-size: 15px;
            font-weight: 600;
            letter-spacing: 0.02em;
            cursor: pointer;
            transition: all var(--transition-base);
            white-space: nowrap;
        }

        .btn-primary:hover,
        .btn-primary:focus {
            background: var(--accent);
            color: var(--primary);
        }

        .btn-primary:active {
            transform: scale(0.97);
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: transparent;
            color: var(--primary);
            border: 1px solid var(--primary);
            border-radius: var(--radius-sm);
            padding: 13px 26px;
            font-size: 15px;
            font-weight: 500;
            letter-spacing: 0.02em;
            cursor: pointer;
            transition: all var(--transition-base);
            white-space: nowrap;
        }

        .btn-secondary:hover,
        .btn-secondary:focus {
            background: var(--accent);
            border-color: var(--accent);
            color: var(--primary);
        }

        .btn-secondary:active {
            transform: scale(0.97);
        }

        .text-link {
            color: var(--text-primary);
            text-decoration: underline;
            text-underline-offset: 3px;
            font-weight: 500;
            transition: color var(--transition-base);
        }

        .text-link:hover,
        .text-link:focus {
            color: var(--accent-dark);
        }

        /* ===== Page Hero ===== */
        .page-hero {
            position: relative;
            background: linear-gradient(135deg, var(--primary) 0%, #1a2a1e 60%, #24352a 100%);
            color: #F5F3EE;
            padding: 72px 0 64px;
            overflow: hidden;
        }

        .page-hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.25;
            z-index: 0;
        }

        .page-hero::after {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(135deg, rgba(16,21,18,0.75) 0%, rgba(16,21,18,0.45) 100%);
            z-index: 1;
        }

        .page-hero .hero-content {
            position: relative;
            z-index: 2;
        }

        .page-hero .hero-breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: rgba(245,243,238,0.7);
            margin-bottom: 20px;
            letter-spacing: 0.04em;
        }

        .page-hero .hero-breadcrumb a {
            color: rgba(245,243,238,0.7);
            transition: color var(--transition-base);
        }

        .page-hero .hero-breadcrumb a:hover {
            color: var(--accent);
        }

        .page-hero .hero-breadcrumb .separator {
            color: rgba(245,243,238,0.4);
        }

        .page-hero .hero-breadcrumb .current {
            color: var(--accent);
            font-weight: 500;
        }

        .page-hero h1 {
            font-size: 52px;
            font-weight: 700;
            line-height: 1.1;
            margin: 0 0 18px;
            color: #F5F3EE;
            letter-spacing: -0.01em;
            max-width: 700px;
        }

        .page-hero h1 .highlight {
            color: var(--accent);
        }

        .page-hero .hero-desc {
            font-size: 18px;
            line-height: 1.8;
            color: rgba(245,243,238,0.85);
            max-width: 680px;
            margin: 0 0 28px;
        }

        .page-hero .hero-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            align-items: center;
            font-size: 14px;
            color: rgba(245,243,238,0.7);
        }

        .page-hero .hero-meta .meta-item {
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .page-hero .hero-meta .meta-item i {
            color: var(--gold);
            font-size: 14px;
        }

        /* ===== Tag Filter Bar ===== */
        .tag-filter-section {
            padding: 28px 0 8px;
            background: var(--bg-warm);
            border-bottom: 1px solid var(--border-color);
        }

        .tag-filter-bar {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 10px;
        }

        .tag-filter-bar .filter-label {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-secondary);
            letter-spacing: 0.05em;
            margin-right: 6px;
        }

        .tag-filter-btn {
            display: inline-flex;
            align-items: center;
            padding: 8px 18px;
            font-size: 13px;
            font-weight: 500;
            color: var(--text-secondary);
            background: transparent;
            border: 1px solid var(--border-color);
            border-radius: 20px;
            cursor: pointer;
            transition: all var(--transition-base);
            letter-spacing: 0.02em;
            white-space: nowrap;
        }

        .tag-filter-btn:hover {
            border-color: var(--accent-dark);
            color: var(--primary);
            background: rgba(184,232,106,0.12);
        }

        .tag-filter-btn.active {
            background: var(--primary);
            color: #F5F3EE;
            border-color: var(--primary);
            font-weight: 600;
        }

        /* ===== Brand News List Section ===== */
        .brand-list-section {
            padding: 48px 0 72px;
            background: var(--bg-warm);
        }

        .brand-list-section .list-header {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
            margin-bottom: 36px;
        }

        .brand-list-section .list-header h2 {
            font-size: 32px;
            font-weight: 700;
            line-height: 1.2;
            margin: 0;
            color: var(--text-primary);
            letter-spacing: -0.01em;
        }

        .brand-list-section .list-header .result-count {
            font-size: 14px;
            color: var(--text-secondary);
            letter-spacing: 0.03em;
        }

        .brand-news-item {
            display: flex;
            gap: 28px;
            padding: 28px 0;
            border-bottom: 1px solid var(--border-color);
            transition: all var(--transition-base);
            position: relative;
        }

        .brand-news-item:first-child {
            border-top: 1px solid var(--border-color);
        }

        .brand-news-item:hover {
            padding-left: 12px;
        }

        .brand-news-item .news-date-col {
            flex-shrink: 0;
            width: 90px;
            text-align: center;
            padding-top: 4px;
        }

        .brand-news-item .news-date-col .date-day {
            display: block;
            font-size: 36px;
            font-weight: 700;
            line-height: 1;
            color: var(--primary);
        }

        .brand-news-item .news-date-col .date-month {
            display: block;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            margin-top: 6px;
            letter-spacing: 0.08em;
        }

        .brand-news-item .news-content {
            flex: 1;
            min-width: 0;
        }

        .brand-news-item .news-tag {
            display: inline-block;
            padding: 4px 12px;
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 0.06em;
            border-radius: 3px;
            margin-bottom: 10px;
            background: rgba(184,232,106,0.15);
            color: #5f8a2a;
            text-transform: uppercase;
        }

        .brand-news-item .news-tag.tag-gold {
            background: rgba(229,192,123,0.15);
            color: #b8924a;
        }

        .brand-news-item .news-tag.tag-dark {
            background: rgba(16,21,18,0.08);
            color: var(--text-secondary);
        }

        .brand-news-item h3 {
            font-size: 22px;
            font-weight: 700;
            line-height: 1.35;
            margin: 0 0 10px;
            color: var(--text-primary);
        }

        .brand-news-item h3 a {
            color: var(--text-primary);
            transition: color var(--transition-base);
        }

        .brand-news-item h3 a:hover {
            color: var(--accent-dark);
        }

        .brand-news-item .news-summary {
            font-size: 15px;
            line-height: 1.7;
            color: var(--text-secondary);
            margin: 0 0 14px;
            max-width: 740px;
        }

        .brand-news-item .news-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            letter-spacing: 0.02em;
            transition: all var(--transition-base);
        }

        .brand-news-item .news-link i {
            font-size: 13px;
            transition: transform var(--transition-base);
        }

        .brand-news-item .news-link:hover {
            color: var(--accent-dark);
        }

        .brand-news-item .news-link:hover i {
            transform: translateX(4px);
        }

        .brand-news-item .news-image {
            flex-shrink: 0;
            width: 280px;
            border-radius: var(--radius-md);
            overflow: hidden;
            position: relative;
        }

        .brand-news-item .news-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            aspect-ratio: 16/10;
            transition: transform 0.4s ease;
        }

        .brand-news-item .news-image:hover img {
            transform: scale(1.03);
        }

        /* ===== Pagination ===== */
        .pagination-section {
            padding: 40px 0 8px;
            display: flex;
            justify-content: center;
        }

        .pagination-wrap {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-wrap: wrap;
            justify-content: center;
        }

        .page-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-width: 40px;
            height: 40px;
            padding: 0 12px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-primary);
            background: transparent;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            cursor: pointer;
            transition: all var(--transition-base);
            letter-spacing: 0.02em;
        }

        .page-btn:hover {
            border-color: var(--accent-dark);
            color: var(--accent-dark);
            background: rgba(184,232,106,0.08);
        }

        .page-btn.active {
            background: var(--primary);
            color: #F5F3EE;
            border-color: var(--primary);
            font-weight: 600;
        }

        .page-btn.disabled {
            opacity: 0.4;
            pointer-events: none;
        }

        .load-more-btn {
            display: block;
            width: 100%;
            max-width: 360px;
            margin: 32px auto 0;
            padding: 14px 24px;
            background: transparent;
            border: 1px dashed var(--border-color);
            color: var(--text-secondary);
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 500;
            cursor: pointer;
            transition: all var(--transition-base);
            text-align: center;
            letter-spacing: 0.03em;
        }

        .load-more-btn:hover {
            border-color: var(--accent-dark);
            color: var(--primary);
            background: rgba(184,232,106,0.08);
            border-style: solid;
        }

        /* ===== Newsletter CTA Section ===== */
        .newsletter-section {
            padding: 64px 0 80px;
            background: var(--primary);
            color: #F5F3EE;
        }

        .newsletter-section .newsletter-inner {
            max-width: 720px;
            margin: 0 auto;
            text-align: center;
        }

        .newsletter-section h2 {
            font-size: 32px;
            font-weight: 700;
            line-height: 1.2;
            margin: 0 0 14px;
            color: #F5F3EE;
        }

        .newsletter-section .newsletter-desc {
            font-size: 16px;
            line-height: 1.75;
            color: rgba(245,243,238,0.8);
            margin: 0 0 28px;
        }

        .newsletter-form {
            display: flex;
            gap: 12px;
            max-width: 520px;
            margin: 0 auto;
        }

        .newsletter-form input {
            flex: 1;
            padding: 14px 20px;
            font-size: 15px;
            color: var(--text-primary);
            background: #F5F3EE;
            border: 1px solid transparent;
            border-radius: var(--radius-sm);
            transition: all var(--transition-base);
            letter-spacing: 0.01em;
        }

        .newsletter-form input::placeholder {
            color: #9a9f9c;
        }

        .newsletter-form input:focus {
            outline: none;
            border-color: var(--accent);
            box-shadow: 0 0 0 4px rgba(184,232,106,0.2);
        }

        .newsletter-form .btn-primary {
            background: var(--accent);
            color: var(--primary);
            flex-shrink: 0;
        }

        .newsletter-form .btn-primary:hover {
            background: var(--accent-dark);
            color: var(--primary);
        }

        /* ===== Footer ===== */
        .footer-section {
            background: var(--primary);
            color: rgba(245,243,238,0.85);
            padding: 56px 0 28px;
        }

        .footer-section .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 44px;
        }

        .footer-section .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 18px;
            font-weight: 700;
            color: #F5F3EE;
            margin-bottom: 14px;
        }

        .footer-section .footer-logo .logo-badge {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 32px;
            height: 32px;
            background: var(--accent);
            color: var(--primary);
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 700;
        }

        .footer-section .footer-brand p {
            font-size: 14px;
            line-height: 1.7;
            color: rgba(245,243,238,0.65);
            margin: 0;
            max-width: 280px;
        }

        .footer-section h4 {
            font-size: 15px;
            font-weight: 700;
            color: #F5F3EE;
            margin: 0 0 16px;
            letter-spacing: 0.04em;
        }

        .footer-section ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .footer-section ul li {
            margin-bottom: 8px;
        }

        .footer-section ul li a {
            font-size: 14px;
            color: rgba(245,243,238,0.65);
            transition: color var(--transition-base);
        }

        .footer-section ul li a:hover {
            color: var(--accent);
        }

        .footer-section .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding-top: 24px;
            border-top: 1px solid rgba(245,243,238,0.1);
            font-size: 13px;
            color: rgba(245,243,238,0.55);
        }

        .footer-section .footer-beian {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }

        .footer-section .footer-bottom a {
            color: rgba(245,243,238,0.65);
            font-size: 13px;
            transition: color var(--transition-base);
        }

        .footer-section .footer-bottom a:hover {
            color: var(--accent);
        }

        /* ===== Motion & Animation ===== */
        .fade-up {
            opacity: 0;
            transform: translateY(12px);
            transition: opacity 0.4s ease, transform 0.4s ease;
        }

        .fade-up.visible {
            opacity: 1;
            transform: translateY(0);
        }

        @media (prefers-reduced-motion: reduce) {
            html {
                scroll-behavior: auto;
            }
            .fade-up {
                opacity: 1;
                transform: none;
                transition: none;
            }
            .brand-news-item .news-image img {
                transition: none;
            }
            .brand-news-item:hover {
                padding-left: 0;
            }
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .app-sidebar {
                transform: translateX(-100%);
            }
            .app-sidebar.open {
                transform: translateX(0);
                box-shadow: var(--shadow-lg);
            }
            .mobile-header {
                display: flex;
            }
            .drawer-overlay {
                display: block;
                pointer-events: none;
            }
            .drawer-overlay.active {
                pointer-events: auto;
            }
            .main-content {
                margin-left: 0;
                padding-top: var(--mobile-header-height);
            }
            .page-hero {
                padding: 48px 0 44px;
            }
            .page-hero h1 {
                font-size: 40px;
            }
            .brand-news-item {
                flex-direction: column;
                gap: 16px;
            }
            .brand-news-item .news-date-col {
                width: auto;
                display: flex;
                align-items: center;
                gap: 8px;
                text-align: left;
            }
            .brand-news-item .news-date-col .date-day {
                font-size: 22px;
            }
            .brand-news-item .news-date-col .date-month {
                margin-top: 0;
                font-size: 13px;
            }
            .brand-news-item .news-image {
                width: 100%;
                max-width: 400px;
            }
            .footer-section .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
        }

        @media (max-width: 640px) {
            .container-wide {
                padding: 0 18px;
            }
            .page-hero h1 {
                font-size: 32px;
                line-height: 1.15;
            }
            .page-hero .hero-desc {
                font-size: 15px;
                line-height: 1.7;
            }
            .tag-filter-bar {
                gap: 6px;
            }
            .tag-filter-btn {
                padding: 6px 14px;
                font-size: 12px;
            }
            .brand-list-section .list-header h2 {
                font-size: 24px;
            }
            .brand-news-item h3 {
                font-size: 18px;
                line-height: 1.4;
            }
            .brand-news-item .news-summary {
                font-size: 14px;
            }
            .newsletter-section h2 {
                font-size: 24px;
            }
            .newsletter-form {
                flex-direction: column;
            }
            .newsletter-form .btn-primary {
                width: 100%;
            }
            .footer-section .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-section .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                text-align: left;
            }
        }