/* roulang page: index */
:root {
            --bg: #0A0E17;
            --bg-2: #0F1624;
            --surface: rgba(255, 255, 255, 0.055);
            --surface-strong: rgba(255, 255, 255, 0.09);
            --border: rgba(255, 255, 255, 0.12);
            --border-glow: rgba(45, 228, 196, 0.45);
            --primary: #2DE4C4;
            --primary-2: #00B8A9;
            --accent: #FF2E88;
            --gold: #FFC24B;
            --text-hi: #F2F6FF;
            --text-mid: rgba(226, 232, 255, 0.72);
            --text-low: rgba(226, 232, 255, 0.46);
            --radius-lg: 1.25rem;
            --radius-xl: 1.5rem;
            --shadow-soft: 0 8px 32px rgba(0, 0, 0, 0.45);
            --glow-primary: 0 0 20px rgba(45, 228, 196, 0.35);
            --glow-primary-lg: 0 0 28px rgba(45, 228, 196, 0.45);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: "PingFang SC", "Microsoft YaHei", -apple-system, "Segoe UI", sans-serif;
            background: var(--bg);
            color: var(--text-hi);
            line-height: 1.8;
            font-size: 1rem;
            overflow-x: hidden;
        }

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

        a {
            color: inherit;
            text-decoration: none;
            transition: all 0.3s ease;
        }

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

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.25rem;
        }

        @media (min-width: 768px) {
            .container {
                padding: 0 2rem;
            }
        }

        /* ===== Header ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 100;
            height: 4rem;
            background: rgba(10, 14, 23, 0.72);
            backdrop-filter: blur(24px);
            -webkit-backdrop-filter: blur(24px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            display: flex;
            align-items: center;
            transition: all 0.3s ease;
        }

        @media (min-width: 768px) {
            .site-header {
                height: 5rem;
            }
        }

        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
        }

        .brand {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            flex-shrink: 0;
        }

        .brand-logo {
            width: 42px;
            height: 42px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            font-weight: 800;
            color: #0A0E17;
            box-shadow: 0 0 16px rgba(45, 228, 196, 0.3);
            flex-shrink: 0;
        }

        .brand-text {
            font-size: 1.15rem;
            font-weight: 700;
            letter-spacing: 0.02em;
            color: var(--text-hi);
            white-space: nowrap;
            background: linear-gradient(90deg, var(--primary), var(--primary-2) 60%, var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .nav-links {
            display: none;
            align-items: center;
            gap: 1.5rem;
            list-style: none;
            padding: 0;
        }

        @media (min-width: 1024px) {
            .nav-links {
                display: flex;
            }
        }

        .nav-links a {
            font-size: 0.95rem;
            color: var(--text-mid);
            font-weight: 500;
            padding: 0.375rem 0.875rem;
            border-radius: 999px;
            transition: all 0.25s ease;
            position: relative;
        }

        .nav-links a:hover {
            color: var(--text-hi);
            background: rgba(255, 255, 255, 0.06);
        }

        .nav-links a.active {
            color: var(--primary);
            background: rgba(45, 228, 196, 0.1);
        }

        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 50%;
            transform: translateX(-50%);
            width: 16px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 0.625rem 1.5rem;
            border-radius: 999px;
            background: linear-gradient(135deg, var(--primary), var(--primary-2));
            color: #0A0E17;
            font-weight: 700;
            font-size: 0.95rem;
            box-shadow: var(--glow-primary);
            transition: all 0.3s ease;
            white-space: nowrap;
            border: none;
            cursor: pointer;
        }

        .nav-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 0 28px rgba(45, 228, 196, 0.55);
        }

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

        .nav-cta:focus-visible,
        .nav-toggle:focus-visible {
            outline: 3px solid rgba(45, 228, 196, 0.5);
            outline-offset: 2px;
        }

        .nav-toggle {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 42px;
            height: 42px;
            border-radius: 12px;
            border: 1px solid var(--border);
            background: var(--surface);
            color: var(--text-hi);
            font-size: 1.25rem;
            transition: all 0.3s ease;
        }

        @media (min-width: 1024px) {
            .nav-toggle {
                display: none;
            }
        }

        .mobile-menu {
            position: fixed;
            top: 4rem;
            left: 0;
            right: 0;
            background: rgba(10, 14, 23, 0.98);
            backdrop-filter: blur(30px);
            -webkit-backdrop-filter: blur(30px);
            border-bottom: 1px solid var(--border);
            padding: 1.5rem;
            z-index: 99;
            transform: translateY(-120%);
            transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
        }

        @media (min-width: 768px) {
            .mobile-menu {
                top: 5rem;
            }
        }

        .mobile-menu.open {
            transform: translateY(0);
        }

        .mobile-menu .nav-cta {
            margin-bottom: 0.75rem;
            width: 100%;
        }

        .mobile-menu a:not(.nav-cta) {
            padding: 0.75rem 1rem;
            border-radius: 0.75rem;
            color: var(--text-mid);
            font-size: 1rem;
            transition: all 0.2s ease;
        }

        .mobile-menu a:not(.nav-cta):hover,
        .mobile-menu a.active:not(.nav-cta) {
            background: rgba(255, 255, 255, 0.06);
            color: var(--primary);
        }

        /* ===== Hero ===== */
        .hero-section {
            position: relative;
            min-height: 90vh;
            display: flex;
            align-items: center;
            padding: 7rem 0 4rem;
            background: linear-gradient(rgba(10, 14, 23, 0.85), rgba(10, 14, 23, 0.92)), url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            top: -80px;
            left: -80px;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(45, 228, 196, 0.15), transparent 70%);
            pointer-events: none;
        }

        .hero-section::after {
            content: '';
            position: absolute;
            bottom: -60px;
            right: -60px;
            width: 320px;
            height: 320px;
            background: radial-gradient(circle, rgba(255, 46, 136, 0.12), transparent 70%);
            pointer-events: none;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.375rem 1rem;
            border-radius: 999px;
            border: 1px solid rgba(45, 228, 196, 0.3);
            background: rgba(45, 228, 196, 0.08);
            color: var(--primary);
            font-size: 0.85rem;
            font-weight: 500;
            letter-spacing: 0.02em;
            margin-bottom: 1.5rem;
        }

        .hero-title {
            font-size: clamp(2.4rem, 5vw, 4rem);
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 1.25rem;
            letter-spacing: -0.02em;
        }

        .hero-title .gradient-text {
            background: linear-gradient(135deg, var(--primary), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero-subtitle {
            font-size: 1.15rem;
            color: var(--text-mid);
            max-width: 540px;
            line-height: 1.9;
            margin-bottom: 2rem;
        }

        .hero-btns {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            padding: 0.875rem 2rem;
            border-radius: 999px;
            background: linear-gradient(135deg, var(--primary), var(--primary-2));
            color: #0A0E17;
            font-weight: 700;
            font-size: 1rem;
            box-shadow: var(--glow-primary);
            transition: all 0.3s ease;
            border: none;
            cursor: pointer;
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 0 28px rgba(45, 228, 196, 0.5);
        }

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

        .btn-primary:focus-visible {
            outline: 3px solid rgba(45, 228, 196, 0.5);
            outline-offset: 2px;
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            padding: 0.875rem 2rem;
            border-radius: 999px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid var(--border);
            color: var(--text-hi);
            font-weight: 500;
            font-size: 1rem;
            backdrop-filter: blur(10px);
            transition: all 0.3s ease;
            cursor: pointer;
        }

        .btn-secondary:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: rgba(255, 255, 255, 0.25);
            transform: translateY(-2px);
        }

        .glass-panel {
            background: rgba(255, 255, 255, 0.055);
            backdrop-filter: blur(28px);
            -webkit-backdrop-filter: blur(28px);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: 1.5rem;
            box-shadow: var(--shadow-soft);
            position: relative;
            overflow: hidden;
        }

        .glass-panel::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.25), transparent);
        }

        .hero-panel-img {
            border-radius: 1.1rem;
            overflow: hidden;
            margin: 1.25rem;
            position: relative;
        }

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

        .hero-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            padding: 0 1.5rem 1.5rem;
        }

        .stat-chip {
            flex: 1;
            min-width: 80px;
            padding: 0.625rem 0.875rem;
            background: rgba(0, 0, 0, 0.25);
            border-radius: 0.875rem;
            border: 1px solid rgba(255, 255, 255, 0.06);
            text-align: center;
        }

        .stat-chip .num {
            font-size: 1.25rem;
            font-weight: 800;
            color: var(--gold);
            line-height: 1.2;
        }

        .stat-chip .label {
            font-size: 0.75rem;
            color: var(--text-low);
            display: block;
        }

        /* ===== Trust Bar ===== */
        .trust-bar {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: center;
            gap: 1.5rem 3rem;
            padding: 2.5rem 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }

        .trust-item {
            display: flex;
            align-items: baseline;
            gap: 0.5rem;
            color: var(--text-low);
            font-size: 0.9rem;
        }

        .trust-item strong {
            color: var(--gold);
            font-size: 1.4rem;
            font-weight: 800;
            line-height: 1;
        }

        /* ===== Section ===== */
        .section {
            padding: 5rem 0;
        }

        @media (min-width: 768px) {
            .section {
                padding: 7rem 0;
            }
        }

        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.25rem 1rem;
            border-radius: 999px;
            background: rgba(45, 228, 196, 0.08);
            border: 1px solid rgba(45, 228, 196, 0.2);
            color: var(--primary);
            font-size: 0.85rem;
            font-weight: 500;
            letter-spacing: 0.04em;
            text-transform: uppercase;
            margin-bottom: 1.25rem;
        }

        .section-title {
            font-size: clamp(1.8rem, 3vw, 2.5rem);
            font-weight: 700;
            line-height: 1.3;
            margin-bottom: 1rem;
            letter-spacing: -0.01em;
        }

        .section-desc {
            color: var(--text-mid);
            max-width: 640px;
            margin-bottom: 3rem;
            line-height: 1.9;
        }

        /* ===== Steps ===== */
        .steps-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 2rem;
            position: relative;
        }

        @media (min-width: 1024px) {
            .steps-grid {
                grid-template-columns: repeat(3, 1fr);
                gap: 2.5rem;
            }
        }

        .step-card {
            background: var(--surface);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border: 1px solid var(--border);
            border-radius: 1.5rem;
            padding: 2.5rem 1.75rem 2rem;
            position: relative;
            transition: all 0.4s ease;
            overflow: hidden;
        }

        .step-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
        }

        .step-card:hover {
            border-color: var(--border-glow);
            box-shadow: var(--glow-primary);
            transform: translateY(-4px);
        }

        .step-number {
            position: absolute;
            top: 1.25rem;
            right: 1.5rem;
            width: 40px;
            height: 40px;
            border-radius: 14px;
            background: linear-gradient(135deg, var(--primary), var(--primary-2));
            color: #0A0E17;
            font-weight: 800;
            font-size: 1rem;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 0 14px rgba(45, 228, 196, 0.3);
        }

        .step-icon {
            width: 52px;
            height: 52px;
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            background: rgba(45, 228, 196, 0.12);
            color: var(--primary);
            margin-bottom: 1.5rem;
        }

        .step-card h3 {
            font-size: 1.25rem;
            font-weight: 600;
            margin-bottom: 0.5rem;
            color: var(--text-hi);
        }

        .step-card p {
            color: var(--text-mid);
            font-size: 0.95rem;
            line-height: 1.8;
        }

        .step-connector {
            display: none;
        }

        @media (min-width: 1024px) {
            .step-connector {
                display: block;
                position: absolute;
                top: 50%;
                left: calc(100% - 2rem);
                width: 2.5rem;
                border-top: 2px dashed rgba(45, 228, 196, 0.35);
                z-index: -1;
            }
        }

        /* ===== Cases ===== */
        .cases-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 2rem;
        }

        @media (min-width: 1024px) {
            .cases-grid {
                grid-template-columns: 1fr 1fr;
                gap: 2rem;
            }
        }

        .case-card {
            background: var(--surface);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border: 1px solid var(--border);
            border-radius: 1.5rem;
            overflow: hidden;
            transition: all 0.4s ease;
        }

        .case-card:nth-child(2) {
            margin-top: 0;
        }

        @media (min-width: 1024px) {
            .case-card:nth-child(2) {
                margin-top: 2rem;
            }
        }

        .case-card:hover {
            transform: translateY(-4px);
            border-color: var(--border-glow);
            box-shadow: var(--glow-primary);
        }

        .case-cover {
            aspect-ratio: 16/9;
            overflow: hidden;
            position: relative;
        }

        .case-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.6s ease;
        }

        .case-card:hover .case-cover img {
            transform: scale(1.03);
        }

        .case-body {
            padding: 1.5rem;
        }

        .case-tag {
            display: inline-block;
            padding: 0.25rem 0.75rem;
            border-radius: 999px;
            background: rgba(255, 46, 136, 0.15);
            border: 1px solid rgba(255, 46, 136, 0.3);
            color: var(--accent);
            font-size: 0.8rem;
            font-weight: 500;
            margin-bottom: 0.75rem;
        }

        .case-body h3 {
            font-size: 1.2rem;
            font-weight: 600;
            margin-bottom: 0.75rem;
            line-height: 1.5;
        }

        .case-body p {
            color: var(--text-mid);
            font-size: 0.95rem;
            line-height: 1.8;
        }

        .case-result {
            margin-top: 1.25rem;
            padding-top: 1.25rem;
            border-top: 1px solid rgba(255, 255, 255, 0.07);
            display: flex;
            align-items: center;
            gap: 0.75rem;
        }

        .case-result .num {
            font-size: 1.6rem;
            font-weight: 800;
            color: var(--gold);
            line-height: 1;
        }

        .case-result .desc {
            font-size: 0.875rem;
            color: var(--text-low);
        }

        /* ===== News / CMS ===== */
        .news-section {
            position: relative;
        }

        .news-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 1.5rem;
        }

        @media (min-width: 768px) {
            .news-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (min-width: 1024px) {
            .news-grid {
                grid-template-columns: repeat(3, 1fr);
            }
        }

        .news-card {
            display: flex;
            flex-direction: column;
            background: var(--surface);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border: 1px solid var(--border);
            border-radius: 1.25rem;
            padding: 1.5rem;
            transition: all 0.35s ease;
            height: 100%;
        }

        .news-card:hover {
            border-color: var(--border-glow);
            box-shadow: var(--glow-primary);
            transform: translateY(-3px);
        }

        .news-cat {
            display: inline-block;
            width: fit-content;
            padding: 0.2rem 0.7rem;
            border-radius: 999px;
            background: rgba(45, 228, 196, 0.12);
            border: 1px solid rgba(45, 228, 196, 0.25);
            color: var(--primary);
            font-size: 0.75rem;
            font-weight: 500;
            margin-bottom: 1rem;
        }

        .news-card h3 {
            font-size: 1.05rem;
            font-weight: 600;
            margin-bottom: 0.75rem;
            line-height: 1.5;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-card p {
            color: var(--text-mid);
            font-size: 0.9rem;
            line-height: 1.75;
            flex: 1;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-top: 1.25rem;
            padding-top: 1rem;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            color: var(--text-low);
            font-size: 0.8rem;
        }

        .news-meta .link {
            color: var(--primary);
            font-weight: 500;
        }

        .empty-state {
            grid-column: 1 / -1;
            text-align: center;
            padding: 4rem 1rem;
            color: var(--text-low);
            background: var(--surface);
            border: 1px dashed var(--border);
            border-radius: 1.5rem;
        }

        /* ===== FAQ ===== */
        .faq-wrap {
            max-width: 840px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--surface);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border: 1px solid var(--border);
            border-radius: 1.25rem;
            margin-bottom: 1rem;
            overflow: hidden;
            transition: border-color 0.3s ease, box-shadow 0.3s ease;
        }

        .faq-item.open {
            border-color: var(--border-glow);
            box-shadow: var(--glow-primary);
            background: var(--surface-strong);
        }

        .faq-question {
            display: flex;
            align-items: center;
            gap: 1rem;
            padding: 1.25rem 1.5rem;
            cursor: pointer;
            user-select: none;
            list-style: none;
        }

        .faq-question::-webkit-details-marker {
            display: none;
        }

        .faq-icon {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: rgba(45, 228, 196, 0.12);
            border: 1px solid rgba(45, 228, 196, 0.25);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            font-size: 0.875rem;
            font-weight: 600;
            transition: all 0.3s ease;
        }

        .faq-question span {
            font-size: 1rem;
            font-weight: 500;
            color: var(--text-hi);
            flex: 1;
            line-height: 1.5;
        }

        .faq-arrow {
            width: 24px;
            height: 24px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-mid);
            transition: transform 0.3s ease;
            font-size: 1rem;
            flex-shrink: 0;
        }

        .faq-item.open .faq-arrow {
            transform: rotate(45deg);
            color: var(--primary);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.45s cubic-bezier(0.16, 1, 0.3, 1);
            padding: 0 1.5rem;
        }

        .faq-item.open .faq-answer {
            max-height: 500px;
            padding-bottom: 1.5rem;
        }

        .faq-answer p {
            color: var(--text-mid);
            font-size: 0.95rem;
            line-height: 1.9;
            padding-top: 0.5rem;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: 5rem 0;
        }

        .cta-box {
            border-radius: 2rem;
            background: linear-gradient(135deg, rgba(45, 228, 196, 0.08), rgba(255, 46, 136, 0.05)), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            border: 1px solid var(--border);
            overflow: hidden;
            position: relative;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            padding: 3rem 2.5rem;
            gap: 2rem;
        }

        .cta-box::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 2px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
        }

        .cta-box h2 {
            font-size: clamp(1.6rem, 3vw, 2.2rem);
            font-weight: 700;
            margin-bottom: 0.5rem;
            line-height: 1.3;
        }

        .cta-box p {
            color: var(--text-mid);
            max-width: 480px;
            font-size: 1rem;
        }

        .btn-cta-lg {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.625rem;
            padding: 1rem 2.5rem;
            border-radius: 999px;
            background: linear-gradient(135deg, var(--primary), var(--primary-2));
            color: #0A0E17;
            font-weight: 700;
            font-size: 1.125rem;
            box-shadow: 0 0 28px rgba(45, 228, 196, 0.45);
            transition: all 0.35s ease;
            white-space: nowrap;
            border: none;
            cursor: pointer;
        }

        .btn-cta-lg:hover {
            transform: translateY(-3px);
            box-shadow: 0 0 36px rgba(45, 228, 196, 0.65);
        }

        .btn-cta-lg:focus-visible {
            outline: 3px solid rgba(255, 46, 136, 0.5);
            outline-offset: 3px;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: rgba(10, 14, 23, 0.96);
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 4rem 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 2.5rem;
            padding-bottom: 3rem;
        }

        @media (min-width: 640px) {
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (min-width: 1024px) {
            .footer-grid {
                grid-template-columns: 2fr 1fr 1fr 1.2fr;
            }
        }

        .footer-brand .brand {
            margin-bottom: 1rem;
        }

        .footer-brand p {
            color: var(--text-low);
            font-size: 0.9rem;
            line-height: 1.8;
            max-width: 280px;
        }

        .footer-col h4 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-hi);
            margin-bottom: 1.25rem;
        }

        .footer-col ul {
            list-style: none;
            padding: 0;
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
        }

        .footer-col ul a {
            color: var(--text-mid);
            font-size: 0.9rem;
            transition: color 0.25s ease;
        }

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

        .footer-contact li {
            color: var(--text-mid);
            font-size: 0.9rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .footer-contact li i {
            color: var(--primary);
            width: 16px;
            text-align: center;
        }

        .copyright-bar {
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            padding: 1.5rem 0;
            text-align: center;
            color: var(--text-low);
            font-size: 0.85rem;
        }

        .copyright-bar a {
            color: var(--text-low);
        }

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

        /* ===== Focus & Accessibility ===== */
        :focus-visible {
            outline: 3px solid rgba(45, 228, 196, 0.5);
            outline-offset: 2px;
            border-radius: 4px;
        }

        ::selection {
            background: rgba(45, 228, 196, 0.3);
            color: #fff;
        }

        ::-webkit-scrollbar {
            width: 8px;
            height: 8px;
        }

        ::-webkit-scrollbar-track {
            background: var(--bg);
        }

        ::-webkit-scrollbar-thumb {
            background: rgba(255, 255, 255, 0.15);
            border-radius: 4px;
        }

        ::-webkit-scrollbar-thumb:hover {
            background: rgba(45, 228, 196, 0.3);
        }

        /* ===== Responsive Additions ===== */
        @media (max-width: 639px) {
            .hero-title {
                font-size: 2.2rem;
            }

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

            .section {
                padding: 3.5rem 0;
            }

            .cta-box {
                padding: 2rem 1.5rem;
                flex-direction: column;
                text-align: center;
            }

            .cta-box p {
                margin: 0 auto;
            }

            .btn-cta-lg {
                width: 100%;
            }
        }

/* roulang page: category1 */
:root {
            --bg: #0A0E17;
            --bg-2: #0F1624;
            --surface: rgba(255, 255, 255, 0.055);
            --surface-strong: rgba(255, 255, 255, 0.09);
            --border: rgba(255, 255, 255, 0.12);
            --border-glow: rgba(45, 228, 196, 0.45);
            --primary: #2DE4C4;
            --primary-2: #00B8A9;
            --accent: #FF2E88;
            --gold: #FFC24B;
            --text-hi: #F2F6FF;
            --text-mid: rgba(226, 232, 255, 0.72);
            --text-low: rgba(226, 232, 255, 0.46);
            --radius: 1.25rem;
            --shadow: 0 8px 32px rgba(0, 0, 0, 0.45);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            background-color: var(--bg);
            color: var(--text-hi);
            font-family: "PingFang SC", "Microsoft YaHei", -apple-system, "Segoe UI", sans-serif;
            line-height: 1.8;
            font-size: 1rem;
            -webkit-font-smoothing: antialiased;
        }

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

        a {
            color: inherit;
            text-decoration: none;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 1.25rem;
            padding-right: 1.25rem;
        }

        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: 4rem;
            background: rgba(10, 14, 23, 0.72);
            backdrop-filter: blur(24px);
            -webkit-backdrop-filter: blur(24px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .site-header .container {
            height: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .brand {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            flex-shrink: 0;
        }

        .brand-logo {
            width: 38px;
            height: 38px;
            border-radius: 12px;
            background: linear-gradient(135deg, #2DE4C4, #FF2E88);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 1.2rem;
            color: #0A0E17;
            box-shadow: 0 0 20px rgba(45, 228, 196, 0.3);
            font-family: Inter, system-ui, sans-serif;
        }

        .brand-text {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text-hi);
            white-space: nowrap;
            letter-spacing: 0.02em;
        }

        .nav-links {
            display: flex;
            list-style: none;
            gap: 1.5rem;
            align-items: center;
        }

        .nav-links a {
            font-size: 0.925rem;
            color: var(--text-mid);
            transition: color 0.25s ease;
            padding: 0.5rem 0.25rem;
            position: relative;
        }

        .nav-links a:hover {
            color: var(--text-hi);
        }

        .nav-links a.active {
            color: var(--primary);
            font-weight: 600;
        }

        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0.25rem;
            right: 0.25rem;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
            box-shadow: 0 0 8px var(--border-glow);
        }

        .nav-cta {
            background: linear-gradient(135deg, var(--primary), var(--primary-2));
            color: #0A0E17;
            font-weight: 700;
            border-radius: 999px;
            padding: 0.625rem 1.5rem;
            font-size: 0.925rem;
            box-shadow: 0 0 20px rgba(45, 228, 196, 0.35);
            transition: transform 0.25s ease, box-shadow 0.25s ease;
            white-space: nowrap;
        }

        .nav-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 0 28px rgba(45, 228, 196, 0.55);
        }

        .nav-toggle {
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid var(--border);
            border-radius: 12px;
            width: 42px;
            height: 42px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-hi);
            font-size: 1.1rem;
            cursor: pointer;
            transition: background 0.2s ease, border-color 0.2s ease;
        }

        .nav-toggle:hover {
            background: rgba(255, 255, 255, 0.14);
            border-color: var(--border-glow);
        }

        .mobile-menu {
            display: none;
            position: fixed;
            top: 4rem;
            left: 0;
            right: 0;
            background: rgba(10, 14, 23, 0.97);
            backdrop-filter: blur(32px);
            border-bottom: 1px solid var(--border);
            z-index: 999;
            padding: 1.5rem 1.25rem;
        }

        .mobile-menu.open {
            display: block;
        }

        .mobile-menu .nav-cta {
            display: inline-flex;
            margin-bottom: 1.25rem;
            width: 100%;
            justify-content: center;
        }

        .mobile-menu ul {
            list-style: none;
        }

        .mobile-menu ul li + li {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
        }

        .mobile-menu ul a {
            display: block;
            padding: 0.875rem 0.5rem;
            color: var(--text-mid);
            font-size: 1rem;
            transition: color 0.2s ease, padding-left 0.2s ease;
        }

        .mobile-menu ul a:hover,
        .mobile-menu ul a.active {
            color: var(--primary);
            padding-left: 1rem;
        }

        .category-hero {
            padding: 8.5rem 0 3rem;
            background-image: linear-gradient(rgba(10, 14, 23, 0.72), rgba(10, 14, 23, 0.92)), url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            position: relative;
            overflow: hidden;
        }

        .category-hero::before {
            content: '';
            position: absolute;
            top: -100px;
            left: -100px;
            width: 340px;
            height: 340px;
            background: rgba(45, 228, 196, 0.15);
            border-radius: 50%;
            filter: blur(90px);
            pointer-events: none;
        }

        .category-hero::after {
            content: '';
            position: absolute;
            bottom: -80px;
            right: -60px;
            width: 280px;
            height: 280px;
            background: rgba(255, 46, 136, 0.12);
            border-radius: 50%;
            filter: blur(80px);
            pointer-events: none;
        }

        .category-hero-inner {
            position: relative;
            z-index: 2;
            max-width: 860px;
        }

        .category-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.35rem 1rem;
            border-radius: 999px;
            background: rgba(45, 228, 196, 0.12);
            border: 1px solid rgba(45, 228, 196, 0.3);
            color: var(--primary);
            font-size: 0.875rem;
            font-weight: 600;
            margin-bottom: 1.5rem;
        }

        .category-h1 {
            font-size: clamp(2.2rem, 4.5vw, 3.2rem);
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 1.25rem;
            color: var(--text-hi);
        }

        .category-h1 .gradient-text {
            background: linear-gradient(115deg, #2DE4C4 20%, #FF2E88 80%);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
        }

        .category-lead {
            font-size: 1.05rem;
            color: var(--text-mid);
            line-height: 1.9;
        }

        .category-lead strong {
            color: var(--primary);
            font-weight: 600;
        }

        .section-cat {
            padding: 4.5rem 0;
        }

        .section-cat-alt {
            background: var(--bg-2);
        }

        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            color: var(--primary);
            font-size: 0.85rem;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.12em;
            margin-bottom: 0.75rem;
        }

        .section-title {
            font-size: clamp(1.8rem, 3vw, 2.4rem);
            font-weight: 700;
            line-height: 1.3;
            margin-bottom: 1rem;
        }

        .section-sub {
            color: var(--text-mid);
            font-size: 1rem;
            max-width: 700px;
            margin-bottom: 2.5rem;
        }

        .guide-list {
            display: flex;
            flex-direction: column;
            gap: 1.5rem;
        }

        .guide-item {
            display: grid;
            grid-template-columns: 1fr;
            gap: 1.75rem;
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            backdrop-filter: blur(16px);
            overflow: hidden;
            transition: border-color 0.3s ease, box-shadow 0.3s ease, transform 0.3s ease;
            padding: 1.5rem;
        }

        .guide-item:hover {
            border-color: var(--border-glow);
            box-shadow: 0 0 32px rgba(45, 228, 196, 0.12);
            transform: translateY(-3px);
        }

        .guide-image {
            border-radius: 1rem;
            overflow: hidden;
            border: 1px solid rgba(255, 255, 255, 0.08);
            height: 100%;
            min-height: 210px;
        }

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

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

        .guide-content {
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .guide-number {
            font-size: 0.85rem;
            font-weight: 700;
            color: var(--primary);
            background: rgba(45, 228, 196, 0.1);
            border-radius: 999px;
            padding: 0.2rem 0.85rem;
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            align-self: flex-start;
            margin-bottom: 0.85rem;
        }

        .guide-content h3 {
            font-size: 1.3rem;
            font-weight: 700;
            margin-bottom: 0.65rem;
            color: var(--text-hi);
        }

        .guide-content p {
            color: var(--text-mid);
            font-size: 0.95rem;
            line-height: 1.85;
        }

        .guide-content ul {
            list-style: none;
            margin-top: 1rem;
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem;
        }

        .guide-content ul li {
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: 999px;
            padding: 0.25rem 0.9rem;
            font-size: 0.8rem;
            color: var(--text-mid);
        }

        .feature-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 1.25rem;
        }

        .feature-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            backdrop-filter: blur(16px);
            padding: 1.75rem;
            transition: border-color 0.3s ease, box-shadow 0.3s ease, transform 0.3s ease;
            position: relative;
        }

        .feature-card:hover {
            border-color: var(--border-glow);
            box-shadow: 0 0 28px rgba(45, 228, 196, 0.1);
            transform: translateY(-4px);
        }

        .feature-icon {
            width: 50px;
            height: 50px;
            border-radius: 14px;
            background: linear-gradient(135deg, rgba(45, 228, 196, 0.15), rgba(255, 46, 136, 0.12));
            border: 1px solid rgba(45, 228, 196, 0.25);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            color: var(--primary);
            margin-bottom: 1.1rem;
        }

        .feature-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-hi);
            margin-bottom: 0.6rem;
        }

        .feature-card p {
            color: var(--text-mid);
            font-size: 0.9rem;
            line-height: 1.75;
        }

        .faq-section {
            max-width: 840px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: 1rem;
            margin-bottom: 1rem;
            overflow: hidden;
            transition: border-color 0.3s ease, background 0.3s ease;
        }

        .faq-item.active {
            border-color: var(--border-glow);
            background: rgba(255, 255, 255, 0.08);
            border-left: 2px solid var(--primary);
        }

        .faq-question {
            display: flex;
            align-items: center;
            gap: 1rem;
            padding: 1.25rem 1.5rem;
            cursor: pointer;
            user-select: none;
        }

        .faq-question .faq-icon {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: rgba(45, 228, 196, 0.12);
            border: 1px solid rgba(45, 228, 196, 0.25);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 0.9rem;
            flex-shrink: 0;
        }

        .faq-question span {
            flex: 1;
            font-weight: 600;
            color: var(--text-hi);
            font-size: 1rem;
        }

        .faq-question .faq-arrow {
            color: var(--text-low);
            transition: transform 0.35s ease;
            font-size: 0.85rem;
        }

        .faq-item.active .faq-arrow {
            transform: rotate(45deg);
            color: var(--primary);
        }

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

        .faq-answer-inner {
            padding: 0 1.5rem 1.5rem 4.5rem;
            color: var(--text-mid);
            font-size: 0.925rem;
            line-height: 1.85;
        }

        .cta-bar {
            background: var(--surface-strong);
            border: 1px solid var(--border);
            border-radius: 1.5rem;
            backdrop-filter: blur(20px);
            padding: 2.5rem 2rem;
            display: flex;
            flex-direction: column;
            align-items: flex-start;
            gap: 1.5rem;
            margin: 3rem 0 4.5rem;
        }

        .cta-bar h2 {
            font-size: clamp(1.4rem, 2.5vw, 1.9rem);
            font-weight: 700;
            color: var(--text-hi);
        }

        .cta-bar p {
            color: var(--text-mid);
            font-size: 0.95rem;
            max-width: 600px;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: linear-gradient(135deg, var(--primary), var(--primary-2));
            color: #0A0E17;
            font-weight: 700;
            border-radius: 999px;
            padding: 0.75rem 2rem;
            font-size: 0.95rem;
            box-shadow: 0 0 20px rgba(45, 228, 196, 0.35);
            transition: transform 0.25s ease, box-shadow 0.25s ease;
            border: none;
            cursor: pointer;
            text-decoration: none;
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 0 28px rgba(45, 228, 196, 0.55);
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: var(--surface);
            color: var(--text-hi);
            border: 1px solid var(--border);
            border-radius: 999px;
            padding: 0.75rem 2rem;
            font-size: 0.95rem;
            transition: background 0.25s ease, border-color 0.25s ease;
            text-decoration: none;
            cursor: pointer;
        }

        .btn-outline:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: var(--border-glow);
        }

        .site-footer {
            background: #0A0E17;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 3.5rem 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 2.5rem;
            padding-bottom: 3rem;
        }

        .footer-brand .brand {
            margin-bottom: 1rem;
        }

        .footer-brand p {
            color: var(--text-low);
            font-size: 0.875rem;
            line-height: 1.8;
            max-width: 320px;
            margin-top: 0.75rem;
        }

        .footer-col h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-hi);
            margin-bottom: 1.1rem;
        }

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

        .footer-col ul li {
            margin-bottom: 0.6rem;
        }

        .footer-col ul a {
            color: var(--text-mid);
            font-size: 0.875rem;
            transition: color 0.25s ease;
        }

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

        .footer-contact li {
            display: flex;
            align-items: flex-start;
            gap: 0.65rem;
            color: var(--text-mid);
            font-size: 0.875rem;
            padding: 0.3rem 0;
        }

        .footer-contact i {
            color: var(--primary);
            margin-top: 0.3rem;
            width: 16px;
            text-align: center;
        }

        .copyright-bar {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding: 1.5rem 0;
            text-align: center;
        }

        .copyright-bar p {
            color: var(--text-low);
            font-size: 0.8rem;
        }

        .back-top {
            position: fixed;
            bottom: 2rem;
            right: 2rem;
            width: 46px;
            height: 46px;
            border-radius: 50%;
            background: var(--surface-strong);
            border: 1px solid var(--border);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-hi);
            backdrop-filter: blur(16px);
            cursor: pointer;
            z-index: 99;
            opacity: 0;
            pointer-events: none;
            transition: opacity 0.3s ease, background 0.3s ease, border-color 0.3s ease;
        }

        .back-top.visible {
            opacity: 1;
            pointer-events: auto;
        }

        .back-top:hover {
            border-color: var(--border-glow);
            background: rgba(45, 228, 196, 0.15);
        }

        @media (min-width: 768px) {
            .site-header {
                height: 4.5rem;
            }

            .mobile-menu {
                top: 4.5rem;
            }

            .guide-item {
                grid-template-columns: 1fr 1.2fr;
                padding: 1.75rem;
            }

            .feature-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .cta-bar {
                flex-direction: row;
                align-items: center;
                justify-content: space-between;
                padding: 3rem;
            }
        }

        @media (min-width: 1024px) {
            .nav-toggle {
                display: none;
            }

            .nav-links {
                display: flex;
            }

            .category-hero {
                padding: 10rem 0 4rem;
            }

            .feature-grid {
                grid-template-columns: repeat(3, 1fr);
            }

            .footer-grid {
                grid-template-columns: 1.2fr 0.8fr 0.8fr 1fr;
            }

            .guide-item {
                grid-template-columns: 420px 1fr;
            }
        }

        @media (max-width: 1023px) {
            .nav-links {
                display: none;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding-left: 1rem;
                padding-right: 1rem;
            }

            .brand-text {
                font-size: 1rem;
            }

            .brand-logo {
                width: 34px;
                height: 34px;
            }

            .category-h1 {
                font-size: 1.9rem;
            }

            .category-lead {
                font-size: 0.95rem;
            }

            .guide-content h3 {
                font-size: 1.15rem;
            }

            .cta-bar {
                padding: 1.8rem 1.5rem;
            }

            .cta-bar .btn-primary,
            .cta-bar .btn-outline {
                width: 100%;
                justify-content: center;
            }

            .back-top {
                bottom: 1rem;
                right: 1rem;
            }
        }

/* roulang page: article */
:root {
    --bg: #0A0E17;
    --bg-2: #0F1624;
    --surface: rgba(255,255,255,0.055);
    --surface-strong: rgba(255,255,255,0.09);
    --border: rgba(255,255,255,0.12);
    --border-glow: rgba(45,228,196,0.45);
    --primary: #2DE4C4;
    --primary-2: #00B8A9;
    --accent: #FF2E88;
    --gold: #FFC24B;
    --text-hi: #F2F6FF;
    --text-mid: rgba(226,232,255,0.72);
    --text-low: rgba(226,232,255,0.46);
    --radius: 1.25rem;
    --radius-sm: 0.75rem;
    --shadow-card: 0 8px 32px rgba(0,0,0,0.45);
    --glow-primary: 0 0 20px rgba(45,228,196,0.35);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    font-family: "PingFang SC", "Microsoft YaHei", -apple-system, "Segoe UI", sans-serif;
    background: var(--bg);
    color: var(--text-hi);
    line-height: 1.8;
    -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button { font-family: inherit; }
ul, ol { list-style: none; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 1.25rem; }
@media (min-width: 768px) { .container { padding: 0 2rem; } }

/* 导航 */
.site-header { position: sticky; top: 0; z-index: 50; background: rgba(10,14,23,0.72); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px); border-bottom: 1px solid rgba(255,255,255,0.08); }
.site-header .container { display: flex; align-items: center; justify-content: space-between; height: 4rem; gap: 1rem; }
@media (min-width: 768px) { .site-header .container { height: 5rem; } }

.brand { display: flex; align-items: center; gap: 0.75rem; flex-shrink: 0; }
.brand-logo { width: 2.5rem; height: 2.5rem; border-radius: 0.75rem; background: linear-gradient(135deg, var(--primary), var(--accent)); display: flex; align-items: center; justify-content: center; font-weight: 800; font-size: 1.25rem; color: #0A0E17; box-shadow: 0 0 16px rgba(45,228,196,0.35); }
.brand-text { font-size: 1.2rem; font-weight: 700; letter-spacing: 0.02em; white-space: nowrap; }

.nav-links { display: none; align-items: center; gap: 2rem; }
@media (min-width: 1024px) { .nav-links { display: flex; } }
.nav-links a { font-size: 0.95rem; color: var(--text-mid); padding: 0.5rem 0.25rem; transition: color 0.25s; position: relative; }
.nav-links a:hover { color: var(--text-hi); }
.nav-links a.active { color: var(--primary); }
.nav-links a.active::after { content: ""; position: absolute; left: 0; right: 0; bottom: -2px; height: 2px; border-radius: 2px; background: var(--primary); }

.nav-cta { display: inline-flex; align-items: center; justify-content: center; padding: 0.65rem 1.5rem; border-radius: 999px; background: linear-gradient(135deg, var(--primary), var(--primary-2)); color: #0A0E17; font-weight: 700; font-size: 0.95rem; box-shadow: var(--glow-primary); transition: all 0.25s; white-space: nowrap; }
.nav-cta:hover { transform: translateY(-2px); box-shadow: 0 0 28px rgba(45,228,196,0.5); }
.nav-cta:active { transform: translateY(0); }
.nav-cta:focus-visible { outline: 3px solid rgba(45,228,196,0.4); outline-offset: 2px; }

.nav-toggle { color: var(--text-hi); font-size: 1.25rem; background: transparent; border: 1px solid var(--border); border-radius: 0.5rem; cursor: pointer; width: 2.5rem; height: 2.5rem; display: flex; align-items: center; justify-content: center; transition: border-color 0.25s; }
.nav-toggle:hover { border-color: var(--primary); }

.mobile-menu { display: none; position: absolute; top: 100%; left: 0; right: 0; z-index: 49; background: rgba(10,14,23,0.96); backdrop-filter: blur(20px); border-bottom: 1px solid var(--border); padding: 1rem 0 1.5rem; }
.mobile-menu.open { display: block; }
.mobile-menu-inner { display: flex; flex-direction: column; gap: 0.75rem; }
.mobile-cta { text-align: center; background: linear-gradient(135deg, var(--primary), var(--primary-2)); color: #0A0E17; font-weight: 700; border-radius: 999px; padding: 0.75rem 1rem; font-size: 0.95rem; box-shadow: var(--glow-primary); }
.mobile-nav-links li { margin-bottom: 0.25rem; }
.mobile-nav-links a { display: block; padding: 0.7rem 1rem; border-radius: 0.75rem; color: var(--text-mid); font-size: 1rem; transition: background 0.2s, color 0.2s; }
.mobile-nav-links a:hover { background: var(--surface); color: var(--text-hi); }

/* 文章头部 */
.article-banner { position: relative; padding: 4.5rem 0 3.5rem; background-size: cover; background-position: center; background-color: var(--bg-2); }
.article-banner::before { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(10,14,23,0.85) 0%, rgba(10,14,23,0.72) 100%), radial-gradient(ellipse at 15% 15%, rgba(45,228,196,0.15), transparent 50%), radial-gradient(ellipse at 85% 85%, rgba(255,46,136,0.12), transparent 50%); }
.article-banner .container { position: relative; z-index: 1; }

.breadcrumb { font-size: 0.85rem; color: var(--text-low); margin-bottom: 1.5rem; display: flex; flex-wrap: wrap; align-items: center; gap: 0.5rem; }
.breadcrumb a { color: var(--text-mid); transition: color 0.2s; }
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb .sep { color: var(--text-low); }
.breadcrumb .current { color: var(--text-low); max-width: 320px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

.article-banner h1 { font-size: clamp(1.8rem, 3.5vw, 2.6rem); font-weight: 800; line-height: 1.3; letter-spacing: 0.01em; margin-bottom: 1.25rem; }
.article-banner .banner-desc { font-size: 1rem; color: var(--text-mid); max-width: 680px; }

.article-meta { display: flex; flex-wrap: wrap; gap: 1rem 1.5rem; font-size: 0.875rem; color: var(--text-mid); }
.article-meta span { display: inline-flex; align-items: center; gap: 0.4rem; }
.article-meta i { color: var(--primary); font-size: 0.85rem; }
.article-meta .cat { color: var(--primary); }

/* 正文区 */
.article-section { padding: 3.5rem 0 1rem; }
.article-content { max-width: 820px; margin: 0 auto; font-size: 1.05rem; line-height: 1.9; color: var(--text-mid); }
.article-content h2 { font-size: 1.55rem; font-weight: 700; color: var(--text-hi); margin: 2.5rem 0 1rem; padding-left: 0.85rem; border-left: 3px solid var(--primary); }
.article-content h3 { font-size: 1.25rem; font-weight: 600; color: var(--text-hi); margin: 2rem 0 0.75rem; }
.article-content h4 { font-size: 1.1rem; font-weight: 600; color: var(--text-hi); margin: 1.5rem 0 0.5rem; }
.article-content p { margin-bottom: 1.2rem; }
.article-content ul { margin: 1rem 0 1.2rem; padding-left: 1.25rem; list-style: disc; }
.article-content ol { margin: 1rem 0 1.2rem; padding-left: 1.4rem; list-style: decimal; }
.article-content li { margin-bottom: 0.5rem; }
.article-content blockquote { border-left: 4px solid var(--primary); background: rgba(45,228,196,0.06); padding: 1rem 1.25rem; border-radius: 0.5rem; margin: 1.5rem 0; color: var(--text-mid); }
.article-content img { border-radius: 1rem; border: 1px solid rgba(255,255,255,0.1); margin: 1.5rem 0; }
.article-content a { color: var(--primary); border-bottom: 1px solid rgba(45,228,196,0.3); transition: border-color 0.2s; }
.article-content a:hover { border-bottom-color: var(--primary); }
.article-content code { background: rgba(255,255,255,0.08); border-radius: 0.3rem; padding: 0.15rem 0.4rem; font-size: 0.9em; }
.article-content pre { background: rgba(0,0,0,0.3); border: 1px solid var(--border); border-radius: 0.75rem; padding: 1rem 1.25rem; overflow-x: auto; margin: 1.5rem 0; }

.article-tags { max-width: 820px; margin: 2rem auto 0; display: flex; flex-wrap: wrap; gap: 0.6rem; }
.tag { display: inline-flex; align-items: center; font-size: 0.8rem; color: var(--text-mid); border: 1px solid var(--border); border-radius: 999px; padding: 0.3rem 0.85rem; transition: border-color 0.2s, color 0.2s; }
.tag:hover { border-color: var(--primary); color: var(--primary); }

/* 未找到 */
.not-found { max-width: 820px; margin: 0 auto; text-align: center; padding: 4rem 1.5rem; border-radius: 1.5rem; border: 1px dashed var(--border); background: var(--surface); }
.not-found h2 { font-size: 1.6rem; margin-bottom: 0.75rem; }
.not-found p { color: var(--text-mid); margin-bottom: 2rem; }
.not-found .not-found-icon { font-size: 3rem; color: var(--text-low); margin-bottom: 1rem; }

/* 相关推荐 */
.related-section { padding: 3rem 0 4.5rem; }
.related-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 2rem; }
.related-head h2 { font-size: clamp(1.4rem, 2.5vw, 1.8rem); font-weight: 700; }
.related-head .related-sub { font-size: 0.875rem; color: var(--text-low); }

.related-grid { display: grid; gap: 1.5rem; grid-template-columns: 1fr; }
@media (min-width: 768px) { .related-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .related-grid { grid-template-columns: repeat(3, 1fr); } }

.related-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; backdrop-filter: blur(12px); transition: all 0.3s; }
.related-card:hover { transform: translateY(-4px); border-color: var(--border-glow); box-shadow: var(--shadow-card), 0 0 20px rgba(45,228,196,0.08); }
.related-card .card-img { position: relative; aspect-ratio: 16 / 10; overflow: hidden; }
.related-card .card-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s; }
.related-card:hover .card-img img { transform: scale(1.03); }
.related-card .card-img .cat-badge { position: absolute; top: 0.85rem; left: 0.85rem; background: rgba(45,228,196,0.18); color: var(--primary); font-size: 0.72rem; font-weight: 600; padding: 0.2rem 0.6rem; border-radius: 999px; backdrop-filter: blur(6px); border: 1px solid rgba(45,228,196,0.25); }
.related-card .card-body { padding: 1.25rem; }
.related-card .card-body h3 { font-size: 1.05rem; font-weight: 600; line-height: 1.5; margin-bottom: 0.5rem; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.related-card .card-body p { font-size: 0.875rem; color: var(--text-mid); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.related-card .card-footer { padding: 0.9rem 1.25rem; border-top: 1px solid var(--border); display: flex; align-items: center; justify-content: space-between; font-size: 0.8rem; color: var(--text-low); }
.related-card .card-footer a { color: var(--primary); font-size: 0.85rem; display: inline-flex; align-items: center; gap: 0.4rem; transition: gap 0.2s; }
.related-card .card-footer a:hover { gap: 0.6rem; }

/* 返回链接 */
.back-link { text-align: center; padding: 1rem 0 2.5rem; }
.back-link a { display: inline-flex; align-items: center; gap: 0.5rem; color: var(--text-mid); border: 1px solid var(--border); border-radius: 999px; padding: 0.55rem 1.4rem; transition: color 0.25s, border-color 0.25s; }
.back-link a:hover { color: var(--primary); border-color: var(--primary); }

/* 页脚 */
.site-footer { background: var(--bg-2); border-top: 1px solid rgba(255,255,255,0.08); padding-top: 4rem; }
.footer-grid { display: grid; gap: 2.5rem; grid-template-columns: 1fr; padding-bottom: 3rem; }
@media (min-width: 640px) { .footer-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .footer-grid { grid-template-columns: 1.5fr 1fr 1fr 1.2fr; } }
.footer-brand p { margin-top: 1rem; color: var(--text-mid); font-size: 0.9rem; max-width: 320px; }
.footer-col h4 { font-size: 1rem; font-weight: 600; margin-bottom: 1.1rem; color: var(--text-hi); }
.footer-col ul li { margin-bottom: 0.6rem; }
.footer-col ul a { color: var(--text-mid); font-size: 0.9rem; transition: color 0.2s; }
.footer-col ul a:hover { color: var(--primary); }
.footer-contact li { color: var(--text-mid); font-size: 0.9rem; display: flex; align-items: center; gap: 0.6rem; }
.footer-contact i { color: var(--primary); }
.copyright-bar { border-top: 1px solid rgba(255,255,255,0.06); padding: 1.5rem 0; text-align: center; }
.copyright-bar p { color: var(--text-low); font-size: 0.8rem; }

/* 通用文本辅助 */
.text-mid { color: var(--text-mid); }
.text-low { color: var(--text-low); }
.text-primary { color: var(--primary); }
.bg-primary { background: var(--primary); }

/* roulang page: category2 */
:root {
            --bg: #0A0E17;
            --bg-2: #0F1624;
            --surface: rgba(255, 255, 255, 0.055);
            --surface-strong: rgba(255, 255, 255, 0.09);
            --border: rgba(255, 255, 255, 0.12);
            --border-glow: rgba(45, 228, 196, 0.45);
            --primary: #2DE4C4;
            --primary-2: #00B8A9;
            --accent: #FF2E88;
            --gold: #FFC24B;
            --text-hi: #F2F6FF;
            --text-mid: rgba(226, 232, 255, 0.72);
            --text-low: rgba(226, 232, 255, 0.46);
            --radius-card: 1.25rem;
            --radius-btn: 999px;
            --shadow-soft: 0 8px 32px rgba(0, 0, 0, 0.45);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: "Inter", "PingFang SC", "Microsoft YaHei", -apple-system, "Segoe UI", sans-serif;
            background-color: var(--bg);
            color: var(--text-hi);
            line-height: 1.8;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }

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

        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.25s ease, border-color 0.25s ease, background 0.25s ease, box-shadow 0.25s ease, transform 0.25s ease;
        }

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

        ul,
        ol {
            list-style: none;
        }

        .container {
            max-width: 1200px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 1.25rem;
            padding-right: 1.25rem;
        }

        @media (min-width: 768px) {
            .container {
                padding-left: 2rem;
                padding-right: 2rem;
            }
        }

        /* ===== Header ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 100;
            height: 4rem;
            background: rgba(10, 14, 23, 0.72);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            transition: background 0.3s ease;
        }

        @media (min-width: 768px) {
            .site-header {
                height: 5rem;
            }
        }

        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            gap: 1.5rem;
        }

        .brand {
            display: inline-flex;
            align-items: center;
            gap: 0.6rem;
            flex-shrink: 0;
        }

        .brand-logo {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 2rem;
            height: 2rem;
            border-radius: 0.6rem;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            color: #0A0E17;
            font-weight: 800;
            font-size: 1.1rem;
            line-height: 1;
            box-shadow: 0 0 16px rgba(45, 228, 196, 0.35);
        }

        .brand-text {
            font-size: 1.05rem;
            font-weight: 700;
            letter-spacing: 0.02em;
            color: var(--text-hi);
            white-space: nowrap;
        }

        .site-header nav {
            display: flex;
            align-items: center;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 0.25rem;
        }

        .nav-links a {
            display: inline-flex;
            align-items: center;
            padding: 0.45rem 0.9rem;
            border-radius: var(--radius-btn);
            color: var(--text-mid);
            font-size: 0.95rem;
            font-weight: 500;
            white-space: nowrap;
            transition: color 0.25s ease, background 0.25s ease;
        }

        .nav-links a:hover {
            color: var(--text-hi);
            background: rgba(255, 255, 255, 0.06);
        }

        .nav-links a.active {
            color: var(--primary);
            background: rgba(45, 228, 196, 0.12);
            box-shadow: inset 0 0 0 1px rgba(45, 228, 196, 0.25);
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 0.55rem 1.4rem;
            border-radius: var(--radius-btn);
            background: linear-gradient(135deg, var(--primary), var(--primary-2));
            color: #08121A;
            font-weight: 700;
            font-size: 0.92rem;
            white-space: nowrap;
            box-shadow: 0 0 20px rgba(45, 228, 196, 0.35);
            transition: transform 0.25s ease, box-shadow 0.25s ease;
        }

        .nav-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 0 28px rgba(45, 228, 196, 0.5);
        }

        .nav-toggle {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 2.5rem;
            height: 2.5rem;
            border-radius: 0.75rem;
            color: var(--text-hi);
            font-size: 1.15rem;
            border: 1px solid var(--border);
            background: rgba(255, 255, 255, 0.05);
        }

        .nav-drawer {
            position: fixed;
            top: 4rem;
            left: 0;
            right: 0;
            z-index: 99;
            background: rgba(10, 14, 23, 0.96);
            backdrop-filter: blur(24px);
            -webkit-backdrop-filter: blur(24px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            padding: 1.25rem 1.25rem 1.5rem;
            display: none;
            flex-direction: column;
            gap: 0.75rem;
            transform: translateY(-0.5rem);
            opacity: 0;
            transition: opacity 0.25s ease, transform 0.25s ease;
        }

        @media (min-width: 768px) {
            .nav-drawer {
                top: 5rem;
            }
        }

        .nav-drawer.open {
            display: flex;
            transform: translateY(0);
            opacity: 1;
        }

        .nav-drawer a.drawer-link {
            display: block;
            padding: 0.7rem 1rem;
            border-radius: 0.75rem;
            color: var(--text-mid);
            font-weight: 500;
            border: 1px solid transparent;
        }

        .nav-drawer a.drawer-link:hover,
        .nav-drawer a.drawer-link.active {
            color: var(--primary);
            background: rgba(45, 228, 196, 0.1);
            border-color: rgba(45, 228, 196, 0.22);
        }

        .nav-drawer .drawer-cta {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 0.7rem 1.2rem;
            border-radius: var(--radius-btn);
            background: linear-gradient(135deg, var(--primary), var(--primary-2));
            color: #08121A;
            font-weight: 700;
            margin-bottom: 0.5rem;
        }

        @media (min-width: 1024px) {
            .nav-drawer {
                display: none !important;
                opacity: 0 !important;
                transform: none !important;
            }
        }

        /* ===== Buttons ===== */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            padding: 0.75rem 1.75rem;
            border-radius: var(--radius-btn);
            background: linear-gradient(135deg, var(--primary), var(--primary-2));
            color: #08121A;
            font-weight: 700;
            font-size: 0.95rem;
            white-space: nowrap;
            box-shadow: 0 0 20px rgba(45, 228, 196, 0.35);
            transition: transform 0.25s ease, box-shadow 0.25s ease;
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 0 28px rgba(45, 228, 196, 0.5);
        }

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

        .btn-primary:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            padding: 0.75rem 1.75rem;
            border-radius: var(--radius-btn);
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--border);
            color: var(--text-hi);
            font-weight: 500;
            font-size: 0.95rem;
            white-space: nowrap;
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            transition: background 0.25s ease, border-color 0.25s ease, transform 0.25s ease;
        }

        .btn-secondary:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: rgba(255, 255, 255, 0.22);
            transform: translateY(-2px);
        }

        /* ===== Hero Category ===== */
        .hero-category {
            position: relative;
            min-height: 420px;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            padding: 8rem 0 4rem;
            background: linear-gradient(135deg, rgba(10, 14, 23, 0.84), rgba(15, 22, 36, 0.68)), url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            overflow: hidden;
        }

        .hero-category::before {
            content: '';
            position: absolute;
            top: -18%;
            right: -10%;
            width: 420px;
            height: 420px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(45, 228, 196, 0.18), transparent 60%);
            pointer-events: none;
        }

        .hero-category::after {
            content: '';
            position: absolute;
            bottom: -32%;
            left: -6%;
            width: 380px;
            height: 380px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(255, 46, 136, 0.15), transparent 60%);
            pointer-events: none;
        }

        .hero-inner {
            position: relative;
            z-index: 1;
            max-width: 800px;
            margin: 0 auto;
            padding: 0 1.25rem;
        }

        .hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            padding: 0.3rem 0.85rem;
            border-radius: var(--radius-btn);
            background: rgba(45, 228, 196, 0.12);
            border: 1px solid rgba(45, 228, 196, 0.28);
            color: var(--primary);
            font-size: 0.82rem;
            font-weight: 600;
            letter-spacing: 0.05em;
            margin-bottom: 1.25rem;
        }

        .hero-category h1 {
            font-size: clamp(2.2rem, 4.5vw, 3.4rem);
            font-weight: 800;
            line-height: 1.18;
            letter-spacing: -0.01em;
            margin-bottom: 1rem;
            color: var(--text-hi);
        }

        .hero-category h1 .accent-text {
            background: linear-gradient(120deg, var(--primary), var(--accent));
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
        }

        .hero-category p.hero-sub {
            font-size: 1.05rem;
            line-height: 1.8;
            color: var(--text-mid);
            margin-bottom: 2rem;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 0.85rem;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.45rem;
            padding: 0.4rem 0.85rem;
            border-radius: var(--radius-btn);
            background: rgba(255, 194, 75, 0.1);
            border: 1px solid rgba(255, 194, 75, 0.22);
            color: var(--gold);
            font-size: 0.85rem;
            font-weight: 600;
        }

        .hero-badge i {
            font-size: 0.75rem;
        }

        /* ===== Section general ===== */
        .section {
            padding: 5rem 0;
        }

        @media (min-width: 768px) {
            .section {
                padding: 6.5rem 0;
            }
        }

        .section-tight-top {
            padding-top: 2.5rem;
        }

        @media (min-width: 768px) {
            .section-tight-top {
                padding-top: 3.5rem;
            }
        }

        .section-head {
            text-align: center;
            max-width: 720px;
            margin: 0 auto 3.5rem;
        }

        .section-head .section-label {
            display: inline-block;
            padding: 0.25rem 0.8rem;
            border-radius: var(--radius-btn);
            background: rgba(45, 228, 196, 0.1);
            border: 1px solid rgba(45, 228, 196, 0.2);
            color: var(--primary);
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            margin-bottom: 1rem;
        }

        .section-head h2 {
            font-size: clamp(1.8rem, 3vw, 2.5rem);
            font-weight: 700;
            line-height: 1.25;
            letter-spacing: -0.01em;
            margin-bottom: 1rem;
            color: var(--text-hi);
        }

        .section-head p {
            color: var(--text-mid);
            font-size: 1rem;
            line-height: 1.8;
        }

        /* ===== Intro note ===== */
        .intro-note {
            position: relative;
            text-align: center;
            max-width: 880px;
            margin: 0 auto;
            padding: 2.5rem 2rem;
            border-radius: 1.5rem;
            background: var(--surface);
            border: 1px solid var(--border);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            box-shadow: var(--shadow-soft);
        }

        .intro-note .note-emoji {
            font-size: 2rem;
            margin-bottom: 0.75rem;
        }

        .intro-note p {
            color: var(--text-mid);
            font-size: 1.05rem;
            line-height: 1.9;
        }

        .intro-note p strong {
            color: var(--primary);
            font-weight: 600;
        }

        /* ===== Pattern list ===== */
        .pattern-item {
            display: grid;
            grid-template-columns: 1fr;
            gap: 2rem;
            align-items: center;
            margin-bottom: 4rem;
        }

        @media (min-width: 1024px) {
            .pattern-item {
                grid-template-columns: 1fr 1fr;
                gap: 4rem;
                margin-bottom: 5.5rem;
            }
            .pattern-item:last-child {
                margin-bottom: 0;
            }
            .pattern-item.alt .pattern-media {
                order: 2;
            }
            .pattern-item.alt .pattern-content {
                order: 1;
            }
        }

        .pattern-media {
            position: relative;
            border-radius: 1.5rem;
            overflow: hidden;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-soft);
            aspect-ratio: 4 / 3;
        }

        .pattern-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

        .pattern-media:hover img {
            transform: scale(1.04);
        }

        .pattern-media::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 55%, rgba(10, 14, 23, 0.5));
            pointer-events: none;
        }

        .pattern-media .media-tag {
            position: absolute;
            top: 1rem;
            left: 1rem;
            z-index: 1;
            padding: 0.3rem 0.8rem;
            border-radius: var(--radius-btn);
            background: rgba(10, 14, 23, 0.6);
            border: 1px solid rgba(255, 255, 255, 0.15);
            color: var(--text-hi);
            font-size: 0.8rem;
            font-weight: 600;
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
        }

        .pattern-content {
            padding: 0.25rem 0;
        }

        .pattern-content .pattern-index {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-width: 2.5rem;
            height: 2.5rem;
            padding: 0 0.6rem;
            border-radius: 0.8rem;
            background: linear-gradient(135deg, rgba(45, 228, 196, 0.18), rgba(255, 46, 136, 0.12));
            border: 1px solid rgba(45, 228, 196, 0.3);
            color: var(--primary);
            font-weight: 700;
            font-size: 0.95rem;
            margin-bottom: 1.1rem;
        }

        .pattern-content h3 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--text-hi);
            margin-bottom: 0.75rem;
            line-height: 1.35;
        }

        .pattern-content p {
            color: var(--text-mid);
            font-size: 1rem;
            line-height: 1.85;
            margin-bottom: 1.25rem;
        }

        .pattern-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem;
        }

        .tag {
            display: inline-flex;
            align-items: center;
            gap: 0.35rem;
            padding: 0.28rem 0.75rem;
            border-radius: var(--radius-btn);
            background: rgba(255, 255, 255, 0.055);
            border: 1px solid var(--border);
            color: var(--text-mid);
            font-size: 0.82rem;
            font-weight: 500;
        }

        .tag i {
            color: var(--primary);
            font-size: 0.7rem;
        }

        .tag.tag-accent i {
            color: var(--accent);
        }

        .tag.tag-gold i {
            color: var(--gold);
        }

        /* ===== Process ===== */
        .process-section {
            background: var(--bg-2);
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
        }

        .process-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 2rem;
        }

        @media (min-width: 768px) {
            .process-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 2.5rem;
            }
        }

        @media (min-width: 1024px) {
            .process-grid {
                grid-template-columns: repeat(4, 1fr);
            }
        }

        .process-step {
            position: relative;
            padding: 2rem 1.5rem;
            border-radius: 1.25rem;
            background: var(--surface);
            border: 1px solid var(--border);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            transition: border-color 0.3s ease, transform 0.3s ease, box-shadow 0.3s ease;
        }

        .process-step:hover {
            border-color: var(--border-glow);
            transform: translateY(-4px);
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4), 0 0 24px rgba(45, 228, 196, 0.1);
        }

        .process-step .step-num {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 3rem;
            height: 3rem;
            border-radius: 0.9rem;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            color: #08121A;
            font-weight: 800;
            font-size: 1.2rem;
            box-shadow: 0 0 18px rgba(45, 228, 196, 0.3);
            margin-bottom: 1.25rem;
        }

        .process-step h3 {
            font-size: 1.2rem;
            font-weight: 600;
            color: var(--text-hi);
            margin-bottom: 0.5rem;
        }

        .process-step p {
            font-size: 0.92rem;
            color: var(--text-mid);
            line-height: 1.7;
        }

        /* ===== Data strip ===== */
        .data-strip {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 1.5rem 1rem;
            margin-top: 3.5rem;
        }

        @media (min-width: 768px) {
            .data-strip {
                grid-template-columns: repeat(4, 1fr);
            }
        }

        .data-item {
            text-align: center;
            padding: 1.5rem 1rem;
            border-radius: 1.25rem;
            background: var(--surface);
            border: 1px solid var(--border);
            transition: border-color 0.3s ease, transform 0.3s ease;
        }

        .data-item:hover {
            border-color: rgba(255, 194, 75, 0.3);
            transform: translateY(-3px);
        }

        .data-item .data-value {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--gold);
            line-height: 1.2;
            margin-bottom: 0.35rem;
        }

        .data-item .data-label {
            font-size: 0.88rem;
            color: var(--text-mid);
        }

        /* ===== FAQ ===== */
        .faq-section {
            max-width: 840px;
            margin: 0 auto;
        }

        .faq-item {
            border-radius: 1.25rem;
            border: 1px solid var(--border);
            background: var(--surface);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            margin-bottom: 0.85rem;
            overflow: hidden;
            transition: border-color 0.3s ease, background 0.3s ease;
        }

        .faq-item.open {
            border-color: rgba(45, 228, 196, 0.3);
            background: rgba(45, 228, 196, 0.045);
        }

        .faq-trigger {
            display: flex;
            align-items: center;
            width: 100%;
            padding: 1.25rem 1.5rem;
            text-align: left;
            gap: 0.85rem;
            color: var(--text-hi);
            font-weight: 600;
            font-size: 1rem;
            line-height: 1.5;
            transition: color 0.25s ease;
        }

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

        .faq-trigger .faq-icon {
            position: relative;
            flex-shrink: 0;
            width: 2rem;
            height: 2rem;
            border-radius: 0.6rem;
            background: rgba(45, 228, 196, 0.1);
            border: 1px solid rgba(45, 228, 196, 0.22);
            color: var(--primary);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 0.85rem;
            transition: transform 0.3s ease, background 0.3s ease;
        }

        .faq-item.open .faq-icon {
            transform: rotate(45deg);
            background: rgba(45, 228, 196, 0.18);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
        }

        .faq-answer .answer-inner {
            padding: 0 1.5rem 1.4rem 4.35rem;
            color: var(--text-mid);
            font-size: 0.95rem;
            line-height: 1.85;
        }

        /* ===== CTA bar ===== */
        .cta-wrap {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.25rem;
        }

        .cta-bar {
            display: flex;
            flex-direction: column;
            align-items: flex-start;
            gap: 1.5rem;
            padding: 2rem;
            border-radius: 1.5rem;
            background: linear-gradient(135deg, rgba(45, 228, 196, 0.1), rgba(255, 46, 136, 0.06)), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            border: 1px solid rgba(45, 228, 196, 0.22);
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            overflow: hidden;
            position: relative;
        }

        @media (min-width: 768px) {
            .cta-bar {
                flex-direction: row;
                align-items: center;
                justify-content: space-between;
                padding: 2.5rem 3rem;
            }
        }

        .cta-bar h3 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--text-hi);
            margin-bottom: 0.35rem;
        }

        .cta-bar p {
            color: var(--text-mid);
            font-size: 0.95rem;
            line-height: 1.7;
        }

        .cta-bar .btn-primary {
            flex-shrink: 0;
            font-size: 1rem;
            padding: 0.85rem 2rem;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: #080C14;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 3.5rem 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 2.5rem;
            padding-bottom: 2.5rem;
        }

        @media (min-width: 640px) {
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (min-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1.4fr 0.8fr 0.8fr 1fr;
                gap: 3rem;
            }
        }

        .footer-brand .brand {
            margin-bottom: 1rem;
        }

        .footer-brand p {
            color: var(--text-mid);
            font-size: 0.92rem;
            line-height: 1.7;
            max-width: 320px;
        }

        .footer-col h4 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-hi);
            margin-bottom: 1.1rem;
        }

        .footer-col ul li {
            margin-bottom: 0.55rem;
        }

        .footer-col ul a {
            color: var(--text-mid);
            font-size: 0.92rem;
            transition: color 0.25s ease;
        }

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

        .footer-contact li {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            color: var(--text-mid);
            font-size: 0.92rem;
        }

        .footer-contact li i {
            color: var(--primary);
            width: 1rem;
            text-align: center;
            flex-shrink: 0;
        }

        .copyright-bar {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding: 1.25rem 0;
            text-align: center;
        }

        .copyright-bar p {
            font-size: 0.82rem;
            color: var(--text-low);
        }

        /* ===== Focus visibility ===== */
        a:focus-visible,
        button:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
            border-radius: 4px;
        }

/* roulang page: category3 */
:root {
            --bg: #0A0E17;
            --bg-2: #0F1624;
            --surface: rgba(255,255,255,0.055);
            --surface-strong: rgba(255,255,255,0.09);
            --border: rgba(255,255,255,0.12);
            --border-glow: rgba(45,228,196,0.45);
            --primary: #2DE4C4;
            --primary-2: #00B8A9;
            --accent: #FF2E88;
            --gold: #FFC24B;
            --text-hi: #F2F6FF;
            --text-mid: rgba(226,232,255,0.72);
            --text-low: rgba(226,232,255,0.46);
            --radius: 1.25rem;
            --radius-lg: 1.5rem;
            --shadow: 0 8px 32px rgba(0,0,0,0.45);
            --glow-primary: 0 0 20px rgba(45,228,196,0.35);
            --transition: all .3s ease;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            font-family: "PingFang SC", "Microsoft YaHei", -apple-system, "Segoe UI", sans-serif;
            background: var(--bg);
            color: var(--text-mid);
            line-height: 1.8;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }

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

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

        ul, ol {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        button {
            font-family: inherit;
            cursor: pointer;
        }

        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.25rem;
        }

        @media (min-width: 768px) {
            .container {
                padding: 0 2rem;
            }
        }

        /* ===== Header ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 50;
            height: 4rem;
            background: rgba(10,14,23,0.72);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(255,255,255,0.08);
        }

        @media (min-width: 768px) {
            .site-header {
                height: 5rem;
            }
        }

        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }

        .brand {
            display: inline-flex;
            align-items: center;
            gap: .65rem;
            flex-shrink: 0;
        }

        .brand-logo {
            width: 42px;
            height: 42px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 999px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            color: #0A0E17;
            font-weight: 800;
            font-size: 1.35rem;
            box-shadow: 0 0 22px rgba(255,46,136,0.22);
        }

        .brand-text {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text-hi);
            letter-spacing: .02em;
            white-space: nowrap;
        }

        .nav-links {
            display: none;
        }

        .nav-toggle {
            background: rgba(255,255,255,0.05);
            border: 1px solid var(--border);
            border-radius: .75rem;
            color: var(--text-hi);
            width: 42px;
            height: 42px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            transition: var(--transition);
        }

        .nav-toggle:hover {
            border-color: var(--primary);
            color: var(--primary);
        }

        @media (min-width: 1024px) {
            .nav-links {
                display: flex;
                align-items: center;
                gap: 2.2rem;
            }

            .nav-links a {
                font-size: .95rem;
                color: var(--text-mid);
                position: relative;
                padding: .5rem .1rem;
            }

            .nav-links a:hover,
            .nav-links a.active {
                color: var(--text-hi);
            }

            .nav-links a.active::after {
                content: '';
                position: absolute;
                left: 0;
                right: 0;
                bottom: 0;
                height: 2px;
                border-radius: 2px;
                background: linear-gradient(90deg, var(--primary), var(--accent));
            }
        }

        @media (max-width: 1023.98px) {
            .nav-links.open {
                display: flex;
                flex-direction: column;
                position: fixed;
                top: 4rem;
                left: 1rem;
                right: 1rem;
                background: rgba(10,14,23,0.96);
                backdrop-filter: blur(20px);
                border: 1px solid var(--border);
                border-radius: 1rem;
                padding: 1rem;
                gap: .25rem;
                z-index: 49;
                box-shadow: var(--shadow);
            }

            .nav-links.open a {
                padding: .75rem;
                border-radius: .75rem;
                color: var(--text-hi);
            }

            .nav-links.open a:hover {
                background: var(--surface-strong);
            }

            .nav-links.open a.active {
                color: var(--primary);
                background: rgba(45,228,196,0.08);
            }
        }

        .nav-cta {
            padding: .65rem 1.5rem;
            border-radius: 999px;
            background: linear-gradient(135deg, var(--primary), var(--primary-2));
            color: #06231F !important;
            font-weight: 700;
            font-size: .92rem;
            box-shadow: var(--glow-primary);
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: .5rem;
            white-space: nowrap;
        }

        .nav-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 0 28px rgba(45,228,196,0.5);
            color: #06231F !important;
        }

        .nav-cta:focus-visible {
            outline: 3px solid rgba(45,228,196,0.4);
            outline-offset: 3px;
        }

        /* ===== Category Hero ===== */
        .category-hero {
            position: relative;
            min-height: 420px;
            display: flex;
            align-items: center;
            padding: 8rem 0 4rem;
            background-size: cover;
            background-position: center;
            overflow: hidden;
        }

        .category-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at top left, rgba(45,228,196,0.16), transparent 52%),
                        radial-gradient(ellipse at bottom right, rgba(255,46,136,0.13), transparent 52%),
                        rgba(10,14,23,0.74);
        }

        .category-hero .container {
            position: relative;
            z-index: 2;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: .45rem;
            padding: .4rem 1rem;
            border-radius: 999px;
            background: rgba(45,228,196,0.12);
            border: 1px solid rgba(45,228,196,0.3);
            color: var(--primary);
            font-size: .8rem;
            font-weight: 600;
            letter-spacing: .05em;
        }

        .hero-title {
            font-size: clamp(2.2rem, 4.5vw, 3.2rem);
            font-weight: 800;
            line-height: 1.22;
            color: var(--text-hi);
            margin: 1rem 0 .75rem;
        }

        .hero-subtitle {
            font-size: 1.08rem;
            color: var(--text-mid);
            max-width: 740px;
            margin-bottom: 1.75rem;
            line-height: 1.75;
        }

        /* ===== Buttons ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: .5rem;
            padding: .8rem 1.75rem;
            border-radius: 999px;
            font-weight: 700;
            font-size: .95rem;
            transition: var(--transition);
            cursor: pointer;
            border: none;
            white-space: nowrap;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--primary), var(--primary-2));
            color: #06231F !important;
            box-shadow: var(--glow-primary);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 0 28px rgba(45,228,196,0.5);
        }

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

        .btn-primary:focus-visible,
        .btn-ghost:focus-visible {
            outline: 3px solid rgba(45,228,196,0.4);
            outline-offset: 3px;
        }

        .btn-ghost {
            background: rgba(255,255,255,0.05);
            border: 1px solid var(--border);
            color: var(--text-hi);
            backdrop-filter: blur(8px);
        }

        .btn-ghost:hover {
            background: rgba(255,255,255,0.08);
            border-color: rgba(45,228,196,0.35);
            color: var(--primary);
        }

        .btn-lg {
            padding: 1rem 2.5rem;
            font-size: 1rem;
        }

        /* ===== Sections ===== */
        .section {
            padding: 5rem 0;
        }

        .section-alt {
            background: var(--bg-2);
        }

        .section-head {
            text-align: center;
            max-width: 760px;
            margin: 0 auto 3rem;
        }

        .section-kicker {
            display: inline-block;
            color: var(--primary);
            font-size: .78rem;
            font-weight: 700;
            letter-spacing: .14em;
            text-transform: uppercase;
            margin-bottom: .5rem;
        }

        .section-title {
            font-size: clamp(1.8rem, 3vw, 2.5rem);
            font-weight: 700;
            color: var(--text-hi);
            margin: .5rem 0 1rem;
            line-height: 1.28;
        }

        .section-desc {
            color: var(--text-mid);
            font-size: 1rem;
            line-height: 1.8;
        }

        .text-gradient {
            background: linear-gradient(90deg, var(--primary), var(--accent));
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
        }

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

        .gold {
            color: var(--gold);
            font-weight: 700;
        }

        /* ===== Stats ===== */
        .stat-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 1.25rem;
        }

        @media (min-width: 768px) {
            .stat-grid {
                grid-template-columns: repeat(3, 1fr);
            }
        }

        .stat-item {
            text-align: center;
            padding: 1.5rem 1rem;
            border-radius: var(--radius);
            background: var(--surface);
            border: 1px solid var(--border);
            backdrop-filter: blur(12px);
            transition: var(--transition);
        }

        .stat-item:hover {
            border-color: rgba(45,228,196,0.3);
            transform: translateY(-3px);
        }

        .stat-num {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--gold);
            line-height: 1.2;
        }

        .stat-label {
            font-size: .85rem;
            color: var(--text-mid);
            margin-top: .35rem;
        }

        /* ===== Lead Paragraph ===== */
        .lead-box {
            max-width: 860px;
            margin: 0 auto;
            padding: 2rem 2.25rem;
            border-radius: var(--radius-lg);
            background: var(--surface);
            border: 1px solid var(--border);
            backdrop-filter: blur(14px);
            font-size: 1.02rem;
            line-height: 2;
            color: var(--text-mid);
        }

        .lead-box strong {
            color: var(--text-hi);
        }

        /* ===== Alternating Lists ===== */
        .alt-row {
            display: grid;
            gap: 2.5rem;
            align-items: center;
            margin-bottom: 3.5rem;
        }

        @media (min-width: 1024px) {
            .alt-row {
                grid-template-columns: 1fr 1fr;
            }

            .alt-row.reverse .alt-media {
                order: 2;
            }
        }

        .alt-media img {
            width: 100%;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            object-fit: cover;
            aspect-ratio: 16 / 10;
        }

        .alt-tag {
            display: inline-block;
            padding: .3rem .85rem;
            border-radius: 999px;
            background: rgba(45,228,196,0.12);
            border: 1px solid rgba(45,228,196,0.2);
            color: var(--primary);
            font-size: .75rem;
            font-weight: 700;
            letter-spacing: .03em;
        }

        .alt-title {
            font-size: 1.45rem;
            font-weight: 700;
            color: var(--text-hi);
            margin: .85rem 0 .6rem;
            line-height: 1.35;
        }

        .alt-desc {
            color: var(--text-mid);
            line-height: 1.85;
            font-size: .98rem;
        }

        .alt-link {
            display: inline-flex;
            align-items: center;
            gap: .5rem;
            color: var(--primary);
            font-weight: 600;
            font-size: .9rem;
            margin-top: .8rem;
        }

        .alt-link:hover {
            color: var(--accent);
            gap: .75rem;
        }

        /* ===== FAQ ===== */
        .faq-wrap {
            max-width: 840px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: 1rem;
            margin-bottom: 1rem;
            backdrop-filter: blur(12px);
            transition: var(--transition);
            overflow: hidden;
        }

        .faq-item.active {
            background: var(--surface-strong);
            border-color: rgba(45,228,196,0.4);
            box-shadow: 0 0 24px rgba(45,228,196,0.08);
        }

        .faq-question {
            display: flex;
            align-items: center;
            gap: 1rem;
            padding: 1.15rem 1.25rem;
            cursor: pointer;
            user-select: none;
        }

        .faq-icon {
            width: 34px;
            height: 34px;
            flex-shrink: 0;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 999px;
            background: linear-gradient(135deg, rgba(45,228,196,0.18), rgba(255,46,136,0.18));
            color: var(--primary);
            font-weight: 700;
            font-size: .85rem;
        }

        .faq-q-text {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-hi);
            flex: 1;
            line-height: 1.5;
        }

        .faq-arrow {
            color: var(--text-low);
            transition: var(--transition);
            font-size: .9rem;
            flex-shrink: 0;
        }

        .faq-item.active .faq-arrow {
            transform: rotate(45deg);
            color: var(--primary);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height .35s ease;
        }

        .faq-answer-inner {
            padding: 0 1.25rem 1.25rem;
            padding-left: calc(1.25rem + 46px);
            color: var(--text-mid);
            line-height: 1.85;
            font-size: .95rem;
        }

        /* ===== CTA Strip ===== */
        .cta-strip {
            display: flex;
            flex-direction: column;
            gap: 1.5rem;
            align-items: flex-start;
            justify-content: space-between;
            padding: 2.5rem;
            border-radius: var(--radius-lg);
            background: linear-gradient(135deg, rgba(45,228,196,0.1), rgba(255,46,136,0.06)), rgba(255,255,255,0.04);
            border: 1px solid var(--border);
            backdrop-filter: blur(16px);
        }

        @media (min-width: 768px) {
            .cta-strip {
                flex-direction: row;
                align-items: center;
                padding: 2rem 2.5rem;
            }
        }

        .cta-strip h3 {
            color: var(--text-hi);
            font-size: 1.35rem;
            margin-bottom: .4rem;
            line-height: 1.4;
        }

        .cta-strip p {
            color: var(--text-mid);
            margin: 0;
            font-size: .95rem;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: rgba(8,11,18,0.92);
            border-top: 1px solid rgba(255,255,255,0.08);
            padding: 4rem 0 2rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 2.5rem;
            margin-bottom: 3rem;
        }

        @media (min-width: 768px) {
            .footer-grid {
                grid-template-columns: 2fr 1fr 1fr 1.5fr;
            }
        }

        .footer-brand .brand {
            margin-bottom: 1rem;
        }

        .footer-brand p {
            color: var(--text-mid);
            font-size: .9rem;
            line-height: 1.75;
            max-width: 340px;
            margin-top: 1rem;
        }

        .footer-col h4 {
            color: var(--text-hi);
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 1rem;
        }

        .footer-col ul li {
            margin-bottom: .55rem;
        }

        .footer-col ul li a {
            color: var(--text-mid);
            font-size: .9rem;
        }

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

        .footer-contact li {
            color: var(--text-mid);
            font-size: .9rem;
            display: flex;
            align-items: center;
            gap: .6rem;
        }

        .footer-contact i {
            color: var(--primary);
            width: 16px;
            font-size: .85rem;
        }

        .copyright-bar {
            padding-top: 2rem;
            border-top: 1px solid rgba(255,255,255,0.06);
            text-align: center;
            color: var(--text-low);
            font-size: .82rem;
        }

        .copyright-bar p {
            margin: 0;
        }

        /* ===== Helper ===== */
        .divider-dash {
            border: 0;
            border-top: 1px dashed rgba(255,255,255,0.14);
            margin: 4rem auto;
            max-width: 960px;
        }