/* roulang page: index */
:root {
            --primary: #5B5FEF;
            --primary-light: #7C7FF3;
            --primary-dark: #4649D6;
            --secondary: #00C9A7;
            --secondary-light: #33D4BB;
            --accent: #FF7B54;
            --accent-light: #FF9B7A;
            --bg: #FAFAFD;
            --bg-alt: #F3F3FA;
            --card: #FFFFFF;
            --text: #2D2A3D;
            --text-weak: #7B7890;
            --text-muted: #9E9BB5;
            --border: #E8E7F0;
            --border-light: #F2F1F8;
            --shadow-sm: 0 1px 3px rgba(45, 42, 61, 0.06), 0 1px 2px rgba(45, 42, 61, 0.04);
            --shadow: 0 4px 16px rgba(45, 42, 61, 0.08), 0 2px 6px rgba(45, 42, 61, 0.04);
            --shadow-md: 0 8px 30px rgba(45, 42, 61, 0.10), 0 4px 10px rgba(45, 42, 61, 0.05);
            --shadow-lg: 0 16px 48px rgba(45, 42, 61, 0.14), 0 8px 18px rgba(45, 42, 61, 0.06);
            --shadow-card: 0 2px 12px rgba(91, 95, 239, 0.07), 0 1px 4px rgba(45, 42, 61, 0.05);
            --radius-sm: 8px;
            --radius: 14px;
            --radius-md: 18px;
            --radius-lg: 24px;
            --radius-xl: 32px;
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --transition-fast: 0.18s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
            --max-width: 1200px;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

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

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background-color: var(--bg);
            min-height: 100vh;
            overflow-x: hidden;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast);
        }

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

        button,
        input {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
        }

        button {
            cursor: pointer;
        }

        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        @media (max-width: 768px) {
            .container {
                padding: 0 16px;
            }
        }

        /* ========== HEADER / NAV ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            padding: 16px 0;
            transition: padding var(--transition);
        }

        .site-header.scrolled {
            padding: 8px 0;
        }

        .nav-panel {
            display: flex;
            align-items: center;
            justify-content: space-between;
            background: rgba(255, 255, 255, 0.85);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 10px 20px;
            box-shadow: var(--shadow);
            gap: 16px;
            transition: all var(--transition);
        }

        .nav-panel:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--border);
        }

        .nav-logo {
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--primary-dark);
            letter-spacing: -0.02em;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 8px;
            flex-shrink: 0;
        }

        .nav-logo .logo-icon {
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.15rem;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            flex-shrink: 0;
        }

        .nav-link-card {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            padding: 9px 16px;
            border-radius: var(--radius);
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-weak);
            background: transparent;
            transition: all var(--transition-fast);
            white-space: nowrap;
            position: relative;
        }

        .nav-link-card:hover {
            color: var(--primary);
            background: rgba(91, 95, 239, 0.06);
        }

        .nav-link-card.active {
            color: #fff;
            background: var(--primary);
            box-shadow: 0 2px 8px rgba(91, 95, 239, 0.3);
            font-weight: 600;
        }

        .nav-link-card.active:hover {
            background: var(--primary-dark);
            color: #fff;
        }

        .nav-link-card .nav-dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: currentColor;
            opacity: 0.5;
            flex-shrink: 0;
        }

        .nav-link-card.active .nav-dot {
            opacity: 1;
            background: #fff;
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 10px 20px;
            border-radius: 50px;
            font-size: 0.95rem;
            font-weight: 600;
            color: #fff;
            background: linear-gradient(135deg, var(--accent), #FF936B);
            box-shadow: 0 4px 14px rgba(255, 123, 84, 0.35);
            transition: all var(--transition-fast);
            white-space: nowrap;
            flex-shrink: 0;
        }

        .nav-cta:hover {
            box-shadow: 0 6px 22px rgba(255, 123, 84, 0.5);
            transform: translateY(-1px);
        }

        .nav-cta:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(255, 123, 84, 0.4);
        }

        .mobile-menu-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--text);
            padding: 8px;
            border-radius: var(--radius-sm);
            transition: background var(--transition-fast);
            cursor: pointer;
        }

        .mobile-menu-toggle:hover {
            background: var(--bg-alt);
        }

        .mobile-nav-overlay {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.5);
            z-index: 999;
            opacity: 0;
            transition: opacity var(--transition);
        }

        .mobile-nav-overlay.open {
            opacity: 1;
        }

        .mobile-nav-drawer {
            display: none;
            position: fixed;
            top: 0;
            right: -320px;
            width: 300px;
            height: 100%;
            background: #fff;
            z-index: 1001;
            padding: 24px;
            box-shadow: var(--shadow-lg);
            transition: right var(--transition);
            overflow-y: auto;
        }

        .mobile-nav-drawer.open {
            right: 0;
        }

        .mobile-nav-drawer .nav-link-card {
            display: flex;
            width: 100%;
            margin-bottom: 6px;
            padding: 12px 16px;
            font-size: 1rem;
        }

        .mobile-nav-drawer .nav-cta {
            display: flex;
            width: 100%;
            justify-content: center;
            margin-top: 12px;
            padding: 12px 20px;
        }

        .mobile-nav-drawer .drawer-close {
            display: flex;
            align-items: center;
            justify-content: flex-end;
            margin-bottom: 16px;
            font-size: 1.4rem;
            color: var(--text-weak);
            background: none;
            border: none;
            cursor: pointer;
            padding: 4px;
            width: 100%;
        }

        @media (max-width: 860px) {
            .nav-links {
                display: none;
            }

            .nav-cta.desktop-only {
                display: none;
            }

            .mobile-menu-toggle {
                display: flex;
                align-items: center;
                justify-content: center;
            }

            .mobile-nav-overlay {
                display: block;
                pointer-events: none;
            }

            .mobile-nav-overlay.open {
                pointer-events: auto;
            }

            .mobile-nav-drawer {
                display: block;
            }

            .nav-panel {
                padding: 8px 16px;
                border-radius: var(--radius);
            }

            .nav-logo {
                font-size: 1.15rem;
            }

            .nav-logo .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 1rem;
            }
        }

        @media (min-width: 861px) {
            .nav-cta.mobile-only {
                display: none;
            }
        }

        /* ========== HERO ========== */
        .hero-section {
            position: relative;
            padding: 80px 0 100px;
            overflow: hidden;
            background: linear-gradient(170deg, #F0EEFB 0%, #FDFDFF 30%, #F8F7FC 100%);
        }

        .hero-bg-image {
            position: absolute;
            top: 0;
            right: -5%;
            width: 55%;
            height: 100%;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            opacity: 0.28;
            border-radius: 0 0 0 120px;
            z-index: 0;
            mask-image: linear-gradient(to left, rgba(0, 0, 0, 0.7) 0%, rgba(0, 0, 0, 0.15) 60%, transparent 100%);
            -webkit-mask-image: linear-gradient(to left, rgba(0, 0, 0, 0.7) 0%, rgba(0, 0, 0, 0.15) 60%, transparent 100%);
        }

        .hero-content {
            position: relative;
            z-index: 1;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
            min-height: 420px;
        }

        .hero-text {
            max-width: 560px;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 7px 16px;
            background: rgba(91, 95, 239, 0.08);
            border: 1px solid rgba(91, 95, 239, 0.15);
            border-radius: 50px;
            font-size: 0.88rem;
            font-weight: 500;
            color: var(--primary);
            margin-bottom: 20px;
            letter-spacing: 0.01em;
        }

        .hero-badge .badge-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--secondary);
            animation: pulse-dot 2s infinite;
        }

        @keyframes pulse-dot {
            0%,
            100% {
                opacity: 1;
                transform: scale(1);
            }
            50% {
                opacity: 0.5;
                transform: scale(1.5);
            }
        }

        .hero-title {
            font-size: 3.2rem;
            font-weight: 800;
            line-height: 1.2;
            color: var(--text);
            letter-spacing: -0.03em;
            margin-bottom: 18px;
        }

        .hero-title .highlight {
            color: var(--primary);
            position: relative;
        }

        .hero-title .highlight::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 0;
            width: 100%;
            height: 10px;
            background: rgba(91, 95, 239, 0.15);
            border-radius: 20px;
            z-index: -1;
        }

        .hero-desc {
            font-size: 1.15rem;
            color: var(--text-weak);
            line-height: 1.8;
            margin-bottom: 32px;
            max-width: 480px;
        }

        .hero-buttons {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 30px;
            border-radius: 50px;
            font-size: 1rem;
            font-weight: 600;
            color: #fff;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            box-shadow: 0 6px 22px rgba(91, 95, 239, 0.35);
            transition: all var(--transition-fast);
            border: none;
            cursor: pointer;
            letter-spacing: 0.01em;
        }

        .btn-primary:hover {
            box-shadow: 0 10px 30px rgba(91, 95, 239, 0.5);
            transform: translateY(-2px);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 4px 14px rgba(91, 95, 239, 0.35);
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 30px;
            border-radius: 50px;
            font-size: 1rem;
            font-weight: 600;
            color: var(--primary);
            background: #fff;
            border: 2px solid var(--border);
            transition: all var(--transition-fast);
            cursor: pointer;
            letter-spacing: 0.01em;
        }

        .btn-outline:hover {
            border-color: var(--primary);
            background: rgba(91, 95, 239, 0.03);
            box-shadow: var(--shadow);
        }

        .hero-visual {
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
        }

        .hero-card-stack {
            position: relative;
            width: 100%;
            max-width: 420px;
            aspect-ratio: 4/3;
        }

        .hero-floating-card {
            position: absolute;
            background: #fff;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-md);
            padding: 24px;
            display: flex;
            flex-direction: column;
            gap: 12px;
            transition: transform var(--transition);
        }

        .hero-floating-card.card-main {
            top: 10%;
            left: 5%;
            width: 65%;
            z-index: 3;
            animation: float-card 5s ease-in-out infinite;
        }

        .hero-floating-card.card-sub {
            top: 35%;
            right: 0;
            width: 50%;
            z-index: 2;
            animation: float-card 5s ease-in-out 0.8s infinite;
            opacity: 0.9;
        }

        .hero-floating-card.card-mini {
            bottom: 10%;
            left: 15%;
            width: 40%;
            z-index: 1;
            animation: float-card 5s ease-in-out 1.6s infinite;
            opacity: 0.8;
        }

        @keyframes float-card {
            0%,
            100% {
                transform: translateY(0);
            }
            50% {
                transform: translateY(-12px);
            }
        }

        .hero-floating-card .card-icon-row {
            display: flex;
            gap: 8px;
        }

        .hero-floating-card .card-icon-dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
        }

        .hero-floating-card .card-lines {
            display: flex;
            flex-direction: column;
            gap: 6px;
        }

        .hero-floating-card .card-line {
            height: 8px;
            border-radius: 20px;
            background: var(--bg-alt);
        }

        .hero-floating-card .card-line.short {
            width: 60%;
        }

        .hero-floating-card .card-line.medium {
            width: 80%;
        }

        @media (max-width: 1024px) {
            .hero-content {
                grid-template-columns: 1fr;
                gap: 36px;
                min-height: auto;
            }

            .hero-bg-image {
                width: 70%;
                right: -10%;
                opacity: 0.2;
                border-radius: 0 0 0 80px;
            }

            .hero-title {
                font-size: 2.4rem;
            }

            .hero-visual {
                display: none;
            }

            .hero-text {
                max-width: 100%;
                text-align: center;
            }

            .hero-buttons {
                justify-content: center;
            }

            .hero-desc {
                max-width: 100%;
                margin-left: auto;
                margin-right: auto;
            }
        }

        @media (max-width: 520px) {
            .hero-section {
                padding: 50px 0 60px;
            }

            .hero-title {
                font-size: 1.8rem;
            }

            .hero-desc {
                font-size: 1rem;
            }

            .hero-badge {
                font-size: 0.8rem;
            }

            .btn-primary,
            .btn-outline {
                padding: 12px 22px;
                font-size: 0.9rem;
                width: 100%;
                justify-content: center;
            }

            .hero-buttons {
                flex-direction: column;
                width: 100%;
            }

            .hero-bg-image {
                width: 100%;
                right: 0;
                opacity: 0.14;
                border-radius: 0;
            }
        }

        /* ========== SECTIONS ========== */
        .section {
            padding: 70px 0;
        }

        .section-alt {
            background: var(--bg-alt);
        }

        .section-header {
            text-align: center;
            margin-bottom: 48px;
        }

        .section-label {
            display: inline-block;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--primary);
            text-transform: uppercase;
            letter-spacing: 0.06em;
            margin-bottom: 10px;
            padding: 5px 14px;
            background: rgba(91, 95, 239, 0.07);
            border-radius: 50px;
        }

        .section-title {
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--text);
            letter-spacing: -0.02em;
            margin-bottom: 12px;
        }

        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-weak);
            max-width: 560px;
            margin: 0 auto;
            line-height: 1.7;
        }

        @media (max-width: 768px) {
            .section {
                padding: 48px 0;
            }
            .section-title {
                font-size: 1.6rem;
            }
            .section-header {
                margin-bottom: 32px;
            }
        }

        /* ========== FEATURES GRID ========== */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .feature-card {
            background: var(--card);
            border-radius: var(--radius-md);
            padding: 32px 28px;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
            position: relative;
            overflow: hidden;
        }

        .feature-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 4px;
            background: linear-gradient(90deg, var(--primary), var(--secondary));
            transform: scaleX(0);
            transform-origin: left;
            transition: transform var(--transition);
        }

        .feature-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
            border-color: transparent;
        }

        .feature-card:hover::before {
            transform: scaleX(1);
        }

        .feature-icon {
            width: 52px;
            height: 52px;
            border-radius: var(--radius);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            margin-bottom: 18px;
            background: rgba(91, 95, 239, 0.08);
            color: var(--primary);
        }

        .feature-card:nth-child(2) .feature-icon {
            background: rgba(0, 201, 167, 0.08);
            color: var(--secondary);
        }

        .feature-card:nth-child(3) .feature-icon {
            background: rgba(255, 123, 84, 0.08);
            color: var(--accent);
        }

        .feature-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 8px;
            letter-spacing: -0.01em;
        }

        .feature-card p {
            font-size: 0.95rem;
            color: var(--text-weak);
            line-height: 1.7;
        }

        @media (max-width: 900px) {
            .features-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 560px) {
            .features-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ========== CATEGORY ENTRY ========== */
        .category-entry-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
            align-items: stretch;
        }

        .category-card-large {
            background: var(--card);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
            cursor: pointer;
        }

        .category-card-large:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
            border-color: transparent;
        }

        .category-card-large .card-image-wrap {
            position: relative;
            height: 200px;
            overflow: hidden;
        }

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

        .category-card-large:hover .card-image-wrap img {
            transform: scale(1.06);
        }

        .category-card-large .card-image-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(45, 42, 61, 0.5) 0%, transparent 60%);
        }

        .category-card-large .card-body {
            padding: 24px 28px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .category-card-large .card-tag {
            display: inline-block;
            align-self: flex-start;
            padding: 5px 14px;
            background: rgba(91, 95, 239, 0.08);
            color: var(--primary);
            border-radius: 50px;
            font-size: 0.82rem;
            font-weight: 600;
            margin-bottom: 12px;
        }

        .category-card-large h3 {
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 8px;
            letter-spacing: -0.01em;
        }

        .category-card-large p {
            font-size: 0.95rem;
            color: var(--text-weak);
            line-height: 1.7;
            flex: 1;
        }

        .category-card-large .card-arrow {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            margin-top: 14px;
            font-weight: 600;
            color: var(--primary);
            font-size: 0.95rem;
            transition: gap var(--transition-fast);
        }

        .category-card-large:hover .card-arrow {
            gap: 10px;
        }

        @media (max-width: 768px) {
            .category-entry-grid {
                grid-template-columns: 1fr;
            }
            .category-card-large .card-image-wrap {
                height: 160px;
            }
        }

        /* ========== STATS STRIP ========== */
        .stats-strip {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .stat-item {
            text-align: center;
            padding: 28px 16px;
            background: var(--card);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
        }

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

        .stat-number {
            font-size: 2.6rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.03em;
            line-height: 1;
            margin-bottom: 6px;
        }

        .stat-number .stat-suffix {
            font-size: 1.2rem;
            font-weight: 600;
            color: var(--secondary);
        }

        .stat-label {
            font-size: 0.9rem;
            color: var(--text-weak);
            font-weight: 500;
        }

        @media (max-width: 768px) {
            .stats-strip {
                grid-template-columns: repeat(2, 1fr);
            }
            .stat-number {
                font-size: 2rem;
            }
        }

        @media (max-width: 420px) {
            .stats-strip {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .stat-item {
                padding: 20px 12px;
            }
            .stat-number {
                font-size: 1.6rem;
            }
        }

        /* ========== CMS LIST ========== */
        .cms-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }

        .cms-list-item {
            display: flex;
            gap: 18px;
            background: var(--card);
            border-radius: var(--radius-md);
            padding: 20px 22px;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
            align-items: flex-start;
        }

        .cms-list-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
            border-color: transparent;
        }

        .cms-list-item .cms-thumb {
            width: 90px;
            height: 70px;
            border-radius: var(--radius-sm);
            background: var(--bg-alt);
            flex-shrink: 0;
            overflow: hidden;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            color: var(--primary);
        }

        .cms-list-item .cms-info {
            flex: 1;
            min-width: 0;
        }

        .cms-list-item .cms-category-tag {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: 50px;
            background: rgba(0, 201, 167, 0.1);
            color: var(--secondary);
            margin-bottom: 6px;
        }

        .cms-list-item h4 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 4px;
            line-height: 1.5;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .cms-list-item .cms-meta {
            font-size: 0.82rem;
            color: var(--text-muted);
        }

        @media (max-width: 768px) {
            .cms-list {
                grid-template-columns: 1fr;
            }
        }

        /* ========== STEPS / PROGRESS ========== */
        .steps-container {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 0;
            position: relative;
        }

        .steps-container::before {
            content: '';
            position: absolute;
            top: 48px;
            left: 12%;
            width: 76%;
            height: 3px;
            background: var(--border);
            border-radius: 10px;
            z-index: 0;
        }

        .step-item {
            text-align: center;
            position: relative;
            z-index: 1;
            padding: 0 10px;
        }

        .step-circle {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: #fff;
            border: 3px solid var(--border);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--text-weak);
            margin: 0 auto 16px;
            transition: all var(--transition);
            position: relative;
            z-index: 1;
        }

        .step-item.completed .step-circle {
            background: var(--primary);
            border-color: var(--primary);
            color: #fff;
            box-shadow: 0 4px 16px rgba(91, 95, 239, 0.35);
        }

        .step-item h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 4px;
        }

        .step-item p {
            font-size: 0.85rem;
            color: var(--text-weak);
            line-height: 1.5;
        }

        @media (max-width: 768px) {
            .steps-container {
                grid-template-columns: repeat(2, 1fr);
                gap: 28px 16px;
            }
            .steps-container::before {
                display: none;
            }
        }

        @media (max-width: 460px) {
            .steps-container {
                grid-template-columns: 1fr;
                gap: 20px;
            }
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 780px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            background: var(--card);
            border-radius: var(--radius);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: all var(--transition);
            box-shadow: var(--shadow-sm);
        }

        .faq-item:hover {
            border-color: var(--border);
            box-shadow: var(--shadow);
        }

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 24px;
            background: none;
            border: none;
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text);
            cursor: pointer;
            text-align: left;
            gap: 12px;
            transition: color var(--transition-fast);
        }

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

        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: var(--bg-alt);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.9rem;
            transition: all var(--transition-fast);
            color: var(--text-weak);
        }

        .faq-item.open .faq-question .faq-icon {
            background: var(--primary);
            color: #fff;
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
        }

        .faq-answer-inner {
            padding: 0 24px 20px;
            font-size: 0.95rem;
            color: var(--text-weak);
            line-height: 1.8;
        }

        /* ========== CTA SECTION ========== */
        .cta-section {
            background: linear-gradient(160deg, #5B5FEF 0%, #4649D6 40%, #3D3FC4 100%);
            border-radius: var(--radius-xl);
            padding: 56px 48px;
            text-align: center;
            position: relative;
            overflow: hidden;
            color: #fff;
            margin: 0 24px;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 260px;
            height: 260px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
            pointer-events: none;
        }

        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -40px;
            left: -40px;
            width: 180px;
            height: 180px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.04);
            pointer-events: none;
        }

        .cta-section .container {
            position: relative;
            z-index: 1;
        }

        .cta-section h2 {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 12px;
            letter-spacing: -0.02em;
        }

        .cta-section p {
            font-size: 1.05rem;
            opacity: 0.9;
            margin-bottom: 28px;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
            line-height: 1.7;
        }

        .btn-cta-large {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 16px 36px;
            border-radius: 50px;
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--primary-dark);
            background: #fff;
            box-shadow: 0 8px 28px rgba(0, 0, 0, 0.2);
            transition: all var(--transition-fast);
            border: none;
            cursor: pointer;
            letter-spacing: 0.01em;
        }

        .btn-cta-large:hover {
            box-shadow: 0 14px 38px rgba(0, 0, 0, 0.3);
            transform: translateY(-3px);
        }

        .btn-cta-large:active {
            transform: translateY(0);
        }

        @media (max-width: 768px) {
            .cta-section {
                margin: 0 16px;
                padding: 40px 24px;
                border-radius: var(--radius-lg);
            }
            .cta-section h2 {
                font-size: 1.5rem;
            }
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: #fff;
            border-top: 1px solid var(--border-light);
            padding: 48px 0 24px;
            margin-top: 20px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 36px;
        }

        .footer-brand .footer-logo {
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--primary-dark);
            margin-bottom: 10px;
            letter-spacing: -0.01em;
        }

        .footer-brand p {
            font-size: 0.9rem;
            color: var(--text-weak);
            line-height: 1.7;
            max-width: 300px;
        }

        .footer-links h5 {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 14px;
            letter-spacing: 0.01em;
        }

        .footer-links ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .footer-links a {
            font-size: 0.9rem;
            color: var(--text-weak);
            transition: color var(--transition-fast);
        }

        .footer-links a:hover {
            color: var(--primary);
        }

        .footer-bottom {
            border-top: 1px solid var(--border-light);
            padding-top: 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }

        /* ========== UTILITY ========== */
        .text-center {
            text-align: center;
        }
        .empty-state {
            text-align: center;
            padding: 40px 20px;
            color: var(--text-weak);
            font-size: 0.95rem;
            grid-column: 1 / -1;
        }

/* roulang page: article */
:root {
            --color-primary: #f0783c;
            --color-primary-dark: #d95f2a;
            --color-primary-light: #fff3ed;
            --color-secondary: #5b8def;
            --color-secondary-light: #eef4ff;
            --color-accent: #f6b83d;
            --color-accent-light: #fff9ed;
            --color-bg: #f9f7f4;
            --color-surface: #ffffff;
            --color-surface-alt: #fefaf6;
            --color-text: #2c2416;
            --color-text-strong: #1a1410;
            --color-text-muted: #7a6e5e;
            --color-text-light: #a89880;
            --color-border: #e8e0d6;
            --color-border-light: #f2ece4;
            --color-success: #4caf84;
            --radius-xs: 6px;
            --radius-sm: 10px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 26px;
            --radius-full: 999px;
            --shadow-xs: 0 1px 3px rgba(44,36,22,0.04);
            --shadow-sm: 0 3px 10px rgba(44,36,22,0.06);
            --shadow-md: 0 8px 28px rgba(44,36,22,0.09);
            --shadow-lg: 0 18px 48px rgba(44,36,22,0.12);
            --shadow-glow: 0 4px 20px rgba(240,120,60,0.18);
            --transition-fast: 0.18s ease;
            --transition-base: 0.28s ease;
            --transition-slow: 0.4s ease;
            --font-stack: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', -apple-system, system-ui, sans-serif;
            --container-max: 1140px;
            --container-narrow: 820px;
            --header-height: 76px;
        }

        *, *::before, *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-stack);
            font-size: 16px;
            line-height: 1.7;
            color: var(--color-text);
            background-color: var(--color-bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        a {
            color: var(--color-primary);
            text-decoration: none;
            transition: color var(--transition-fast);
        }
        a:hover {
            color: var(--color-primary-dark);
        }

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

        button, input, textarea {
            font-family: inherit;
            font-size: inherit;
        }

        button {
            cursor: pointer;
            border: none;
            background: none;
            outline: none;
        }
        button:focus-visible, a:focus-visible, input:focus-visible {
            outline: 3px solid var(--color-primary);
            outline-offset: 3px;
            border-radius: var(--radius-xs);
        }

        .container {
            width: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }
        .container-narrow {
            max-width: var(--container-narrow);
        }

        /* ========== HEADER / NAV ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: var(--color-surface);
            border-bottom: 1px solid var(--color-border-light);
            box-shadow: var(--shadow-xs);
            height: var(--header-height);
            display: flex;
            align-items: center;
        }
        .site-header .container {
            height: 100%;
        }
        .nav-panel {
            display: flex;
            align-items: center;
            gap: 10px;
            height: 100%;
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            padding: 6px 10px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
        }
        .nav-logo {
            display: flex;
            align-items: center;
            gap: 9px;
            font-weight: 700;
            font-size: 1.15rem;
            color: var(--color-text-strong);
            white-space: nowrap;
            padding: 8px 14px 8px 10px;
            border-radius: var(--radius-md);
            transition: background var(--transition-fast), color var(--transition-fast);
            text-decoration: none;
            flex-shrink: 0;
        }
        .nav-logo:hover {
            background: var(--color-primary-light);
            color: var(--color-primary-dark);
        }
        .logo-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
            color: #fff;
            font-size: 1.1rem;
            box-shadow: var(--shadow-glow);
            flex-shrink: 0;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 6px;
            flex: 1;
            justify-content: center;
        }
        .nav-link-card {
            display: flex;
            align-items: center;
            gap: 7px;
            padding: 9px 16px;
            border-radius: var(--radius-md);
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--color-text-muted);
            text-decoration: none;
            border: 2px solid transparent;
            transition: all var(--transition-base);
            white-space: nowrap;
            background: transparent;
        }
        .nav-link-card:hover {
            color: var(--color-primary);
            background: var(--color-primary-light);
            border-color: var(--color-primary-light);
        }
        .nav-link-card.active {
            color: var(--color-primary);
            background: var(--color-primary-light);
            border-color: var(--color-primary);
            box-shadow: var(--shadow-glow);
        }
        .nav-dot {
            width: 7px;
            height: 7px;
            border-radius: 50%;
            background: currentColor;
            opacity: 0.5;
            flex-shrink: 0;
            transition: opacity var(--transition-fast);
        }
        .nav-link-card.active .nav-dot {
            opacity: 1;
            background: var(--color-primary);
            box-shadow: 0 0 8px var(--color-primary);
        }
        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            padding: 10px 20px;
            border-radius: var(--radius-full);
            font-weight: 700;
            font-size: 0.93rem;
            color: #fff;
            background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
            text-decoration: none;
            box-shadow: var(--shadow-glow);
            transition: all var(--transition-base);
            white-space: nowrap;
            flex-shrink: 0;
        }
        .nav-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(240,120,60,0.3);
            color: #fff;
        }
        .mobile-menu-toggle {
            display: none;
            align-items: center;
            justify-content: center;
            width: 42px;
            height: 42px;
            border-radius: var(--radius-sm);
            font-size: 1.3rem;
            color: var(--color-text);
            background: var(--color-bg);
            border: 1px solid var(--color-border);
            transition: all var(--transition-fast);
            flex-shrink: 0;
        }
        .mobile-menu-toggle:hover {
            background: var(--color-primary-light);
            border-color: var(--color-primary);
            color: var(--color-primary);
        }

        /* ========== MAIN ========== */
        .main-content {
            flex: 1;
            padding: 32px 0 60px;
        }

        /* ========== BREADCRUMB ========== */
        .breadcrumb-bar {
            background: var(--color-surface);
            border-bottom: 1px solid var(--color-border-light);
            padding: 16px 0;
            margin-bottom: 32px;
        }
        .breadcrumb-nav {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
            font-size: 0.9rem;
            color: var(--color-text-muted);
        }
        .breadcrumb-nav a {
            color: var(--color-text-muted);
            text-decoration: none;
            transition: color var(--transition-fast);
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .breadcrumb-nav a:hover {
            color: var(--color-primary);
        }
        .breadcrumb-sep {
            color: var(--color-text-light);
            font-size: 0.75rem;
            opacity: 0.6;
        }
        .breadcrumb-current {
            color: var(--color-text-strong);
            font-weight: 600;
        }

        /* ========== ARTICLE CARD ========== */
        .article-main-card {
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            padding: 40px 44px;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--color-border-light);
            margin-bottom: 40px;
        }
        .article-category-tag {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            padding: 6px 14px;
            border-radius: var(--radius-full);
            font-size: 0.82rem;
            font-weight: 700;
            background: var(--color-secondary-light);
            color: var(--color-secondary);
            margin-bottom: 16px;
            text-decoration: none;
            transition: all var(--transition-fast);
        }
        .article-category-tag:hover {
            background: var(--color-secondary);
            color: #fff;
        }
        .article-title {
            font-size: 2.1rem;
            font-weight: 800;
            line-height: 1.3;
            color: var(--color-text-strong);
            margin-bottom: 16px;
            letter-spacing: -0.01em;
        }
        .article-meta {
            display: flex;
            align-items: center;
            gap: 18px;
            flex-wrap: wrap;
            font-size: 0.88rem;
            color: var(--color-text-muted);
            padding-bottom: 20px;
            margin-bottom: 28px;
            border-bottom: 2px solid var(--color-border-light);
        }
        .article-meta-item {
            display: flex;
            align-items: center;
            gap: 5px;
        }
        .article-meta-item i {
            color: var(--color-primary);
            font-size: 0.9rem;
        }
        .article-cover {
            border-radius: var(--radius-md);
            overflow: hidden;
            margin-bottom: 32px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
        }
        .article-cover img {
            width: 100%;
            object-fit: cover;
            max-height: 460px;
        }

        /* ========== ARTICLE CONTENT ========== */
        .article-content {
            font-size: 1.06rem;
            line-height: 1.85;
            color: var(--color-text);
        }
        .article-content h2 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--color-text-strong);
            margin: 32px 0 14px;
            padding-left: 14px;
            border-left: 4px solid var(--color-primary);
        }
        .article-content h3 {
            font-size: 1.22rem;
            font-weight: 700;
            color: var(--color-text-strong);
            margin: 24px 0 10px;
        }
        .article-content p {
            margin-bottom: 16px;
        }
        .article-content ul, .article-content ol {
            margin: 12px 0 20px 20px;
        }
        .article-content li {
            margin-bottom: 8px;
            padding-left: 4px;
        }
        .article-content li::marker {
            color: var(--color-primary);
        }
        .article-content blockquote {
            margin: 20px 0;
            padding: 18px 24px;
            background: var(--color-surface-alt);
            border-left: 4px solid var(--color-accent);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            font-style: italic;
            color: var(--color-text-muted);
        }
        .article-content img {
            border-radius: var(--radius-sm);
            margin: 20px 0;
            box-shadow: var(--shadow-sm);
        }
        .article-content a {
            text-decoration: underline;
            text-underline-offset: 3px;
            font-weight: 600;
        }
        .article-content code {
            background: var(--color-bg);
            padding: 3px 8px;
            border-radius: var(--radius-xs);
            font-size: 0.9em;
            border: 1px solid var(--color-border-light);
        }
        .article-content pre {
            background: #1e1b16;
            color: #f0e6d8;
            padding: 20px 24px;
            border-radius: var(--radius-sm);
            overflow-x: auto;
            margin: 18px 0;
            font-size: 0.9rem;
            line-height: 1.6;
        }

        /* ========== NOT FOUND ========== */
        .not-found-card {
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            padding: 60px 40px;
            text-align: center;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--color-border-light);
        }
        .not-found-icon {
            font-size: 4rem;
            color: var(--color-text-light);
            margin-bottom: 20px;
            opacity: 0.5;
        }
        .not-found-title {
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--color-text-strong);
            margin-bottom: 10px;
        }
        .not-found-text {
            color: var(--color-text-muted);
            margin-bottom: 24px;
            font-size: 1.02rem;
        }
        .btn-back {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 26px;
            border-radius: var(--radius-full);
            font-weight: 700;
            font-size: 0.95rem;
            color: #fff;
            background: var(--color-primary);
            text-decoration: none;
            box-shadow: var(--shadow-glow);
            transition: all var(--transition-base);
        }
        .btn-back:hover {
            background: var(--color-primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(240,120,60,0.3);
            color: #fff;
        }

        /* ========== RELATED POSTS ========== */
        .related-section {
            margin-bottom: 40px;
        }
        .section-label {
            font-size: 0.82rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.06em;
            color: var(--color-primary);
            margin-bottom: 8px;
        }
        .section-title {
            font-size: 1.55rem;
            font-weight: 800;
            color: var(--color-text-strong);
            margin-bottom: 28px;
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .related-card {
            background: var(--color-surface);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
        }
        .related-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: var(--color-primary);
        }
        .related-card-img {
            height: 170px;
            overflow: hidden;
            background: var(--color-bg);
        }
        .related-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }
        .related-card:hover .related-card-img img {
            transform: scale(1.04);
        }
        .related-card-body {
            padding: 18px 20px 22px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .related-card-cat {
            font-size: 0.75rem;
            font-weight: 700;
            color: var(--color-secondary);
            margin-bottom: 6px;
            text-transform: uppercase;
            letter-spacing: 0.04em;
        }
        .related-card-title {
            font-size: 1.02rem;
            font-weight: 700;
            color: var(--color-text-strong);
            line-height: 1.4;
            margin-bottom: 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .related-card-desc {
            font-size: 0.85rem;
            color: var(--color-text-muted);
            line-height: 1.5;
            flex: 1;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .related-card-link {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            margin-top: 12px;
            font-weight: 700;
            font-size: 0.85rem;
            color: var(--color-primary);
            text-decoration: none;
            transition: gap var(--transition-fast);
        }
        .related-card-link:hover {
            gap: 9px;
            color: var(--color-primary-dark);
        }

        /* ========== CTA SECTION ========== */
        .cta-section {
            background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
            border-radius: var(--radius-lg);
            padding: 44px 40px;
            text-align: center;
            color: #fff;
            box-shadow: var(--shadow-lg);
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: rgba(255,255,255,0.06);
            pointer-events: none;
        }
        .cta-section::after {
            content: '';
            position: absolute;
            bottom: -30%;
            left: -10%;
            width: 220px;
            height: 220px;
            border-radius: 50%;
            background: rgba(255,255,255,0.04);
            pointer-events: none;
        }
        .cta-section > * {
            position: relative;
            z-index: 1;
        }
        .cta-section h3 {
            font-size: 1.55rem;
            font-weight: 800;
            margin-bottom: 10px;
        }
        .cta-section p {
            font-size: 1.02rem;
            opacity: 0.9;
            margin-bottom: 24px;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
        }
        .btn-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 30px;
            border-radius: var(--radius-full);
            font-weight: 700;
            font-size: 1rem;
            color: var(--color-primary-dark);
            background: #fff;
            text-decoration: none;
            box-shadow: 0 6px 22px rgba(0,0,0,0.15);
            transition: all var(--transition-base);
        }
        .btn-cta:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 32px rgba(0,0,0,0.22);
            color: var(--color-primary-dark);
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: var(--color-surface);
            border-top: 1px solid var(--color-border-light);
            padding: 48px 0 24px;
            margin-top: auto;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-logo {
            font-size: 1.2rem;
            font-weight: 800;
            color: var(--color-text-strong);
            margin-bottom: 10px;
        }
        .footer-brand p {
            font-size: 0.9rem;
            color: var(--color-text-muted);
            line-height: 1.7;
        }
        .footer-links h5 {
            font-size: 0.85rem;
            font-weight: 700;
            color: var(--color-text-strong);
            text-transform: uppercase;
            letter-spacing: 0.05em;
            margin-bottom: 14px;
        }
        .footer-links ul {
            list-style: none;
        }
        .footer-links li {
            margin-bottom: 8px;
        }
        .footer-links a {
            font-size: 0.9rem;
            color: var(--color-text-muted);
            text-decoration: none;
            transition: color var(--transition-fast);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }
        .footer-links a:hover {
            color: var(--color-primary);
        }
        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            padding-top: 20px;
            border-top: 1px solid var(--color-border-light);
            font-size: 0.82rem;
            color: var(--color-text-light);
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .article-title {
                font-size: 1.7rem;
            }
            .article-main-card {
                padding: 28px 24px;
            }
            .related-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .footer-brand {
                grid-column: 1 / -1;
            }
        }

        @media (max-width: 768px) {
            .site-header {
                height: auto;
                min-height: 64px;
                padding: 8px 0;
            }
            .nav-panel {
                flex-wrap: wrap;
                gap: 6px;
                padding: 6px 8px;
            }
            .nav-logo {
                font-size: 1rem;
                padding: 6px 10px 6px 6px;
            }
            .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 0.9rem;
            }
            .desktop-only {
                display: none !important;
            }
            .nav-links {
                order: 3;
                flex: 0 0 100%;
                justify-content: flex-start;
                overflow-x: auto;
                -webkit-overflow-scrolling: touch;
                gap: 4px;
                padding: 6px 0;
                scrollbar-width: none;
            }
            .nav-links::-webkit-scrollbar {
                display: none;
            }
            .nav-link-card {
                font-size: 0.82rem;
                padding: 7px 11px;
                flex-shrink: 0;
            }
            .mobile-menu-toggle {
                display: flex;
                margin-left: auto;
            }
            .nav-cta.desktop-only {
                display: none;
            }
            .article-title {
                font-size: 1.4rem;
            }
            .article-main-card {
                padding: 22px 16px;
                border-radius: var(--radius-md);
            }
            .article-content {
                font-size: 0.98rem;
            }
            .article-content h2 {
                font-size: 1.25rem;
            }
            .article-content h3 {
                font-size: 1.08rem;
            }
            .related-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .related-card-img {
                height: 180px;
            }
            .cta-section {
                padding: 32px 20px;
            }
            .cta-section h3 {
                font-size: 1.3rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .breadcrumb-nav {
                font-size: 0.82rem;
                gap: 4px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 14px;
            }
            .article-title {
                font-size: 1.2rem;
            }
            .article-main-card {
                padding: 16px 12px;
                border-radius: var(--radius-sm);
            }
            .article-meta {
                gap: 10px;
                font-size: 0.8rem;
            }
            .article-content {
                font-size: 0.93rem;
                line-height: 1.7;
            }
            .related-card-img {
                height: 150px;
            }
            .section-title {
                font-size: 1.25rem;
            }
            .nav-logo span {
                font-size: 0.9rem;
            }
            .nav-link-card {
                font-size: 0.75rem;
                padding: 6px 9px;
            }
        }

/* roulang page: category1 */
/* ============ 设计变量 ============ */
        :root {
            --primary: #FF6B35;
            --primary-hover: #E85D2C;
            --primary-light: #FFF3ED;
            --secondary: #6C5CE7;
            --secondary-hover: #5A4BD6;
            --secondary-light: #F3F0FF;
            --accent: #00B894;
            --accent-light: #E6FAF5;
            --bg: #F8F9FA;
            --bg-warm: #FFFAF7;
            --card: #FFFFFF;
            --text: #2D3436;
            --text-weak: #636E72;
            --text-muted: #9CA3AF;
            --border: #E8ECF1;
            --border-light: #F0F2F5;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.04), 0 1px 2px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.06), 0 2px 6px rgba(0, 0, 0, 0.04);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.08), 0 4px 12px rgba(0, 0, 0, 0.04);
            --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.10), 0 6px 16px rgba(0, 0, 0, 0.05);
            --radius-sm: 8px;
            --radius: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --radius-full: 50px;
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', -apple-system, BlinkMacSystemFont, sans-serif;
            --container-max: 1200px;
            --header-height: 76px;
        }

        /* ============ Reset & Base ============ */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background-color: var(--bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            min-height: 100vh;
        }

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

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

        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            background: none;
        }

        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }

        ul,
        ol {
            list-style: none;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.3;
            font-weight: 700;
            color: var(--text);
        }

        /* ============ Container ============ */
        .container {
            width: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ============ Header / Nav ============ */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            height: var(--header-height);
            display: flex;
            align-items: center;
        }

        .nav-panel {
            display: flex;
            align-items: center;
            gap: 8px;
            background: var(--card);
            border-radius: var(--radius-lg);
            padding: 8px 12px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: box-shadow var(--transition);
        }

        .nav-panel:hover {
            box-shadow: var(--shadow-md);
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 700;
            font-size: 1.15rem;
            color: var(--text);
            padding: 6px 14px 6px 6px;
            border-radius: var(--radius);
            transition: background var(--transition), color var(--transition);
            white-space: nowrap;
            flex-shrink: 0;
        }

        .nav-logo:hover {
            background: var(--primary-light);
            color: var(--primary);
        }

        .logo-icon {
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--primary), #FF8F65);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.2rem;
            flex-shrink: 0;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
            margin: 0 8px;
        }

        .nav-link-card {
            display: flex;
            align-items: center;
            gap: 7px;
            padding: 10px 16px;
            border-radius: var(--radius);
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-weak);
            transition: all var(--transition);
            white-space: nowrap;
            position: relative;
        }

        .nav-link-card:hover {
            background: var(--bg);
            color: var(--text);
        }

        .nav-link-card.active {
            background: var(--primary-light);
            color: var(--primary);
            font-weight: 600;
        }

        .nav-link-card.active .nav-dot {
            background: var(--primary);
            box-shadow: 0 0 0 4px rgba(255, 107, 53, 0.18);
        }

        .nav-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--text-muted);
            flex-shrink: 0;
            transition: all var(--transition);
        }

        .nav-link-card:hover .nav-dot {
            background: var(--secondary);
        }

        .nav-link-card.active .nav-dot {
            background: var(--primary);
        }

        .nav-cta {
            display: flex;
            align-items: center;
            gap: 7px;
            padding: 10px 20px;
            background: linear-gradient(135deg, var(--primary), #FF8F65);
            color: #fff;
            border-radius: var(--radius-full);
            font-weight: 600;
            font-size: 0.9rem;
            white-space: nowrap;
            flex-shrink: 0;
            transition: all var(--transition);
            box-shadow: 0 2px 10px rgba(255, 107, 53, 0.3);
        }

        .nav-cta:hover {
            transform: translateY(-1px);
            box-shadow: 0 6px 20px rgba(255, 107, 53, 0.4);
            color: #fff;
        }

        .nav-cta:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(255, 107, 53, 0.3);
        }

        .desktop-only {
            display: flex;
        }

        .mobile-menu-toggle {
            display: none;
            width: 40px;
            height: 40px;
            border-radius: var(--radius-sm);
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            color: var(--text);
            background: var(--bg);
            border: 1px solid var(--border);
            flex-shrink: 0;
            transition: all var(--transition);
        }

        .mobile-menu-toggle:hover {
            background: var(--primary-light);
            color: var(--primary);
            border-color: var(--primary);
        }

        /* ============ Main ============ */
        .main-content {
            min-height: 60vh;
        }

        /* ============ Category Banner ============ */
        .category-banner {
            position: relative;
            padding: 64px 0 56px;
            background: linear-gradient(160deg, #1a1a2e 0%, #16213e 40%, #0f3460 100%);
            overflow: hidden;
            color: #fff;
        }

        .category-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            opacity: 0.25;
            z-index: 0;
        }

        .category-banner::after {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 50%, rgba(255, 107, 53, 0.2) 0%, transparent 60%),
                radial-gradient(ellipse at 70% 30%, rgba(108, 92, 231, 0.15) 0%, transparent 60%);
            z-index: 1;
        }

        .banner-inner {
            position: relative;
            z-index: 2;
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
            gap: 16px;
        }

        .category-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 18px;
            background: rgba(255, 255, 255, 0.12);
            backdrop-filter: blur(8px);
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: var(--radius-full);
            font-size: 0.85rem;
            font-weight: 500;
            color: #fff;
            letter-spacing: 0.02em;
        }

        .category-badge i {
            color: var(--primary);
            font-size: 1rem;
        }

        .category-banner h1 {
            font-size: clamp(1.8rem, 3.5vw, 2.6rem);
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.01em;
            line-height: 1.25;
        }

        .category-banner .banner-subtitle {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.75);
            max-width: 560px;
            line-height: 1.6;
        }

        .banner-stats {
            display: flex;
            gap: 32px;
            margin-top: 8px;
            flex-wrap: wrap;
            justify-content: center;
        }

        .banner-stat {
            text-align: center;
            padding: 0 16px;
        }

        .banner-stat .stat-number {
            font-size: 2rem;
            font-weight: 800;
            color: #fff;
            line-height: 1;
        }

        .banner-stat .stat-label {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.6);
            margin-top: 4px;
        }

        /* ============ Breadcrumb ============ */
        .breadcrumb-bar {
            background: var(--card);
            border-bottom: 1px solid var(--border-light);
            padding: 14px 0;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.9rem;
            color: var(--text-weak);
            flex-wrap: wrap;
        }

        .breadcrumb a {
            color: var(--text-weak);
            transition: color var(--transition);
        }

        .breadcrumb a:hover {
            color: var(--primary);
        }

        .breadcrumb .separator {
            color: var(--text-muted);
            font-size: 0.75rem;
        }

        .breadcrumb .current {
            color: var(--primary);
            font-weight: 600;
        }

        /* ============ Section Title ============ */
        .section-header {
            text-align: center;
            margin-bottom: 40px;
        }

        .section-label {
            display: inline-block;
            padding: 6px 16px;
            background: var(--primary-light);
            color: var(--primary);
            border-radius: var(--radius-full);
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 12px;
            letter-spacing: 0.03em;
        }

        .section-title {
            font-size: clamp(1.5rem, 2.5vw, 2rem);
            font-weight: 700;
            color: var(--text);
            margin-bottom: 8px;
        }

        .section-desc {
            font-size: 1rem;
            color: var(--text-weak);
            max-width: 600px;
            margin: 0 auto;
            line-height: 1.7;
        }

        /* ============ Subcategory Filter ============ */
        .subcategory-section {
            padding: 40px 0 16px;
        }

        .filter-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            justify-content: center;
        }

        .filter-tag {
            padding: 10px 20px;
            border-radius: var(--radius-full);
            font-size: 0.9rem;
            font-weight: 500;
            border: 2px solid var(--border);
            background: var(--card);
            color: var(--text-weak);
            cursor: pointer;
            transition: all var(--transition);
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 7px;
        }

        .filter-tag:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: var(--primary-light);
            transform: translateY(-1px);
            box-shadow: var(--shadow-sm);
        }

        .filter-tag.active {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            font-weight: 600;
            box-shadow: 0 4px 14px rgba(255, 107, 53, 0.3);
        }

        .filter-tag .tag-count {
            font-size: 0.78rem;
            opacity: 0.8;
            font-weight: 400;
        }

        /* ============ Article Grid ============ */
        .article-grid-section {
            padding: 40px 0 60px;
        }

        .article-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
            gap: 24px;
        }

        .article-card {
            background: var(--card);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            display: flex;
            flex-direction: column;
            height: 100%;
        }

        .article-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
            border-color: var(--border);
        }

        .article-card-image {
            position: relative;
            aspect-ratio: 16 / 10;
            overflow: hidden;
            background: var(--bg);
        }

        .article-card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
        }

        .article-card:hover .article-card-image img {
            transform: scale(1.06);
        }

        .article-card-tag {
            position: absolute;
            top: 14px;
            left: 14px;
            padding: 5px 12px;
            background: rgba(0, 0, 0, 0.7);
            backdrop-filter: blur(6px);
            color: #fff;
            border-radius: var(--radius-full);
            font-size: 0.78rem;
            font-weight: 600;
            letter-spacing: 0.02em;
            z-index: 2;
        }

        .article-card-tag.hot {
            background: rgba(255, 107, 53, 0.9);
        }

        .article-card-tag.new {
            background: rgba(0, 184, 148, 0.9);
        }

        .article-card-body {
            padding: 20px 22px 22px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .article-card-title {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 8px;
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .article-card-excerpt {
            font-size: 0.9rem;
            color: var(--text-weak);
            line-height: 1.6;
            flex: 1;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 14px;
        }

        .article-card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 0.82rem;
            color: var(--text-muted);
            padding-top: 12px;
            border-top: 1px solid var(--border-light);
        }

        .article-card-meta span {
            display: flex;
            align-items: center;
            gap: 5px;
        }

        .article-card-meta i {
            font-size: 0.85rem;
        }

        /* ============ Pagination ============ */
        .pagination-section {
            padding: 0 0 60px;
        }

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

        .page-btn {
            width: 40px;
            height: 40px;
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 500;
            font-size: 0.9rem;
            border: 1px solid var(--border);
            background: var(--card);
            color: var(--text-weak);
            transition: all var(--transition);
        }

        .page-btn:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: var(--primary-light);
        }

        .page-btn.active {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            font-weight: 700;
            box-shadow: 0 3px 10px rgba(255, 107, 53, 0.3);
        }

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

        .page-btn.arrow {
            font-size: 1rem;
        }

        /* ============ Hot Topics ============ */
        .hot-topics-section {
            padding: 48px 0 56px;
            background: var(--bg-warm);
        }

        .topic-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            justify-content: center;
            max-width: 700px;
            margin: 0 auto;
        }

        .topic-chip {
            padding: 9px 18px;
            border-radius: var(--radius-full);
            font-size: 0.88rem;
            font-weight: 500;
            background: var(--card);
            color: var(--text-weak);
            border: 1px solid var(--border);
            transition: all var(--transition);
            cursor: pointer;
        }

        .topic-chip:hover {
            background: var(--secondary-light);
            color: var(--secondary);
            border-color: var(--secondary);
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }

        .topic-chip.featured {
            background: var(--secondary);
            color: #fff;
            border-color: var(--secondary);
            font-weight: 600;
        }

        /* ============ CTA Section ============ */
        .cta-section {
            padding: 64px 0;
            background: linear-gradient(160deg, #1a1a2e 0%, #16213e 50%, #1a1a2e 100%);
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            opacity: 0.15;
            z-index: 0;
        }

        .cta-section::after {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 50% 50%, rgba(255, 107, 53, 0.18) 0%, transparent 70%);
            z-index: 1;
        }

        .cta-inner {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 650px;
            margin: 0 auto;
        }

        .cta-inner h2 {
            color: #fff;
            font-size: clamp(1.6rem, 3vw, 2.2rem);
            font-weight: 800;
            margin-bottom: 12px;
        }

        .cta-inner p {
            color: rgba(255, 255, 255, 0.7);
            font-size: 1.05rem;
            margin-bottom: 28px;
            line-height: 1.7;
        }

        .cta-buttons {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
            justify-content: center;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 28px;
            font-size: 1rem;
            font-weight: 600;
            border-radius: var(--radius-full);
            transition: all var(--transition);
            cursor: pointer;
            border: none;
            letter-spacing: 0.01em;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--primary), #FF8F65);
            color: #fff;
            box-shadow: 0 4px 16px rgba(255, 107, 53, 0.35);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(255, 107, 53, 0.45);
            color: #fff;
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 3px 12px rgba(255, 107, 53, 0.3);
        }

        .btn-outline {
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255, 255, 255, 0.35);
        }

        .btn-outline:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: rgba(255, 255, 255, 0.6);
            color: #fff;
            transform: translateY(-2px);
        }

        /* ============ FAQ Section ============ */
        .faq-section {
            padding: 60px 0;
            background: var(--card);
        }

        .faq-list {
            max-width: 760px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            background: var(--bg);
            border-radius: var(--radius);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: all var(--transition);
        }

        .faq-item:hover {
            border-color: var(--border);
            box-shadow: var(--shadow-sm);
        }

        .faq-question {
            width: 100%;
            text-align: left;
            padding: 18px 22px;
            font-size: 1rem;
            font-weight: 600;
            color: var(--text);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            background: transparent;
            transition: color var(--transition);
        }

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

        .faq-question i {
            font-size: 0.85rem;
            color: var(--text-muted);
            transition: all var(--transition);
            flex-shrink: 0;
        }

        .faq-item.open .faq-question i {
            transform: rotate(180deg);
            color: var(--primary);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.4s ease;
            padding: 0 22px;
            font-size: 0.95rem;
            color: var(--text-weak);
            line-height: 1.7;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 22px 18px;
        }

        /* ============ Footer ============ */
        .site-footer {
            background: #1a1a2e;
            color: rgba(255, 255, 255, 0.7);
            padding: 52px 0 28px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 36px;
        }

        .footer-brand .footer-logo {
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
            letter-spacing: 0.02em;
        }

        .footer-brand p {
            font-size: 0.9rem;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.55);
            max-width: 320px;
        }

        .footer-links h5 {
            color: #fff;
            font-size: 0.95rem;
            font-weight: 600;
            margin-bottom: 14px;
            letter-spacing: 0.02em;
        }

        .footer-links ul {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .footer-links a {
            color: rgba(255, 255, 255, 0.55);
            font-size: 0.9rem;
            transition: color var(--transition);
        }

        .footer-links a:hover {
            color: var(--primary);
        }

        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.4);
            flex-wrap: wrap;
            gap: 10px;
        }

        /* ============ Mobile Nav Overlay ============ */
        .mobile-nav-overlay {
            display: none;
            position: fixed;
            inset: 0;
            z-index: 999;
            background: rgba(0, 0, 0, 0.5);
            opacity: 0;
            transition: opacity var(--transition);
        }

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

        .mobile-nav-drawer {
            display: none;
            position: fixed;
            top: 0;
            right: 0;
            width: 300px;
            max-width: 85vw;
            height: 100vh;
            background: var(--card);
            z-index: 1001;
            padding: 24px;
            transform: translateX(100%);
            transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
            box-shadow: var(--shadow-xl);
            overflow-y: auto;
        }

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

        .mobile-nav-drawer .drawer-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 24px;
        }

        .mobile-nav-drawer .drawer-title {
            font-weight: 700;
            font-size: 1.1rem;
            color: var(--text);
        }

        .drawer-close {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            color: var(--text);
            background: var(--bg);
            transition: all var(--transition);
        }

        .drawer-close:hover {
            background: #fee2e2;
            color: #dc2626;
        }

        .mobile-nav-drawer .nav-link-card {
            display: flex;
            width: 100%;
            margin-bottom: 6px;
            padding: 12px 16px;
            font-size: 1rem;
        }

        .mobile-nav-drawer .nav-cta-mobile {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            width: 100%;
            margin-top: 20px;
            padding: 14px;
            background: linear-gradient(135deg, var(--primary), #FF8F65);
            color: #fff;
            border-radius: var(--radius-full);
            font-weight: 600;
            font-size: 1rem;
            transition: all var(--transition);
        }

        .mobile-nav-drawer .nav-cta-mobile:hover {
            box-shadow: 0 6px 20px rgba(255, 107, 53, 0.4);
            color: #fff;
        }

        /* ============ Responsive ============ */
        @media (max-width: 1024px) {
            .container {
                padding: 0 20px;
            }

            .article-grid {
                grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
                gap: 20px;
            }

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

            .footer-brand {
                grid-column: 1 / -1;
            }
        }

        @media (max-width: 768px) {
            :root {
                --header-height: 64px;
            }

            .container {
                padding: 0 16px;
            }

            .desktop-only {
                display: none !important;
            }

            .mobile-menu-toggle {
                display: flex;
            }

            .nav-links {
                display: none;
            }

            .nav-panel {
                gap: 8px;
                padding: 6px 10px;
            }

            .nav-logo {
                font-size: 1rem;
                padding: 4px 10px 4px 4px;
                gap: 6px;
            }

            .logo-icon {
                width: 34px;
                height: 34px;
                font-size: 1rem;
            }

            .mobile-nav-drawer {
                display: block;
            }

            .category-banner {
                padding: 44px 0 40px;
            }

            .banner-stats {
                gap: 20px;
            }

            .banner-stat .stat-number {
                font-size: 1.5rem;
            }

            .article-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }

            .filter-tags {
                gap: 8px;
            }

            .filter-tag {
                padding: 8px 15px;
                font-size: 0.84rem;
            }

            .faq-question {
                font-size: 0.95rem;
                padding: 15px 18px;
            }

            .faq-answer {
                padding: 0 18px;
                font-size: 0.9rem;
            }

            .faq-item.open .faq-answer {
                padding: 0 18px 16px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }

            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }

            .cta-buttons {
                flex-direction: column;
                align-items: center;
            }

            .btn {
                width: 100%;
                justify-content: center;
            }

            .pagination {
                gap: 4px;
            }

            .page-btn {
                width: 36px;
                height: 36px;
                font-size: 0.84rem;
            }
        }

        @media (max-width: 520px) {
            .category-banner h1 {
                font-size: 1.5rem;
            }

            .category-banner .banner-subtitle {
                font-size: 0.95rem;
            }

            .banner-stats {
                gap: 14px;
            }

            .banner-stat .stat-number {
                font-size: 1.3rem;
            }

            .banner-stat .stat-label {
                font-size: 0.78rem;
            }

            .article-card-body {
                padding: 15px 16px 16px;
            }

            .article-card-title {
                font-size: 1rem;
            }

            .section-title {
                font-size: 1.35rem;
            }

            .section-desc {
                font-size: 0.9rem;
            }

            .topic-chip {
                padding: 7px 14px;
                font-size: 0.82rem;
            }

            .filter-tag {
                padding: 7px 13px;
                font-size: 0.8rem;
            }
        }