/* roulang page: index */
:root {
            --bg-main: #0B0D16;
            --bg-panel: #131726;
            --bg-panel2: #1A2030;
            --brand: #FF7A1A;
            --neon: #00E5A0;
            --accent: #FF3D6E;
            --text-main: #E8EDF5;
            --text-sub: #8A93A6;
            --text-dim: #545D70;
            --border: rgba(255, 255, 255, 0.08);
            --radius-lg: 16px;
            --radius-md: 10px;
            --radius-sm: 4px;
            --shadow-card: 0 2px 8px rgba(0, 0, 0, 0.3);
            --shadow-hover: 0 8px 24px rgba(0, 0, 0, 0.5), 0 0 20px rgba(255, 122, 26, 0.15);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: "PingFang SC", "Noto Sans SC", "Microsoft YaHei", system-ui, sans-serif;
            background: var(--bg-main);
            color: var(--text-main);
            line-height: 1.8;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }

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

        a {
            text-decoration: none;
            color: inherit;
            transition: color 0.2s ease;
        }

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

        input {
            font-family: inherit;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* Navigation */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: 64px;
            background: transparent;
            transition: background 0.3s ease, box-shadow 0.3s ease;
        }

        .site-header.scrolled {
            background: rgba(11, 13, 22, 0.92);
            backdrop-filter: blur(12px);
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
        }

        .nav-wrap {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
        }

        .nav-left {
            display: flex;
            align-items: center;
            gap: 32px;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 1.25rem;
            letter-spacing: 0.02em;
            color: var(--text-main);
        }

        .logo-mark {
            width: 36px;
            height: 36px;
            background: var(--brand);
            clip-path: polygon(50% 0%, 93% 25%, 93% 75%, 50% 100%, 7% 75%, 7% 25%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #0B0D16;
            font-weight: 900;
            font-size: 18px;
            box-shadow: 0 0 18px rgba(255, 122, 26, 0.4);
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .main-nav a {
            display: inline-flex;
            align-items: center;
            height: 64px;
            padding: 0 14px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-sub);
            position: relative;
            transition: color 0.2s ease;
        }

        .main-nav a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 0;
            height: 2px;
            background: var(--brand);
            transition: width 0.3s ease;
        }

        .main-nav a:hover,
        .main-nav a.active {
            color: var(--brand);
        }

        .main-nav a:hover::after,
        .main-nav a.active::after {
            width: 70%;
        }

        .nav-right {
            display: flex;
            align-items: center;
            gap: 16px;
        }

        .nav-search {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 10px;
            color: var(--text-sub);
            border: 1px solid var(--border);
            transition: all 0.2s ease;
        }

        .nav-search:hover {
            color: var(--brand);
            border-color: rgba(255, 122, 26, 0.4);
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-weight: 700;
            border-radius: var(--radius-md);
            padding: 12px 28px;
            font-size: 15px;
            line-height: 1.2;
            transition: all 0.25s ease;
            white-space: nowrap;
        }

        .btn-primary {
            background: var(--brand);
            color: #0B0D16;
            box-shadow: 0 4px 16px rgba(255, 122, 26, 0.25);
        }

        .btn-primary:hover {
            background: #ff8a3d;
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(255, 122, 26, 0.4);
        }

        .btn-primary:active {
            transform: translateY(0);
            filter: brightness(0.92);
            box-shadow: 0 2px 8px rgba(255, 122, 26, 0.2);
        }

        .btn-primary:focus-visible {
            outline: 2px solid rgba(255, 122, 26, 0.6);
            outline-offset: 2px;
        }

        .btn-secondary {
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.2);
            color: var(--text-main);
        }

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

        .btn-secondary:focus-visible {
            outline: 2px solid rgba(0, 229, 160, 0.5);
            outline-offset: 2px;
        }

        .btn-lg {
            padding: 15px 36px;
            font-size: 16px;
        }

        .btn-sm {
            padding: 8px 18px;
            font-size: 14px;
        }

        .btn-block {
            width: 100%;
        }

        /* Mobile Nav */
        .hamburger-btn {
            display: none;
            width: 40px;
            height: 40px;
            align-items: center;
            justify-content: center;
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            color: var(--text-main);
            font-size: 18px;
            background: rgba(255, 255, 255, 0.04);
        }

        .mobile-drawer {
            display: none;
            position: fixed;
            top: 0;
            right: 0;
            bottom: 0;
            width: 300px;
            max-width: 85vw;
            background: #0D1019;
            z-index: 2000;
            padding: 32px 24px;
            flex-direction: column;
            gap: 8px;
            box-shadow: -12px 0 48px rgba(0, 0, 0, 0.6);
            overflow-y: auto;
        }

        .mobile-drawer.open {
            display: flex;
        }

        .mobile-drawer .drawer-close {
            align-self: flex-end;
            width: 36px;
            height: 36px;
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-sub);
            border: 1px solid var(--border);
            margin-bottom: 24px;
        }

        .mobile-drawer a {
            display: block;
            padding: 14px 12px;
            border-radius: var(--radius-md);
            font-size: 1.125rem;
            color: var(--text-sub);
            border-bottom: 1px solid var(--border);
            transition: all 0.2s ease;
        }

        .mobile-drawer a:hover,
        .mobile-drawer a.active {
            color: var(--brand);
            background: rgba(255, 122, 26, 0.08);
        }

        .drawer-overlay {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(0, 0, 0, 0.6);
            z-index: 1999;
        }

        .drawer-overlay.open {
            display: block;
        }

        /* Hero */
        .hero {
            min-height: 100vh;
            display: flex;
            align-items: center;
            padding: 120px 0 80px;
            background: var(--bg-main);
            position: relative;
            overflow: hidden;
        }

        .hero::before {
            content: '';
            position: absolute;
            top: -40%;
            right: -20%;
            width: 700px;
            height: 700px;
            border-radius: 50%;
            background: rgba(255, 122, 26, 0.08);
            filter: blur(80px);
            pointer-events: none;
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 55% 45%;
            gap: 48px;
            align-items: center;
            position: relative;
            z-index: 2;
        }

        .hero-content {
            padding-top: 20px;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(255, 122, 26, 0.1);
            border: 1px solid rgba(255, 122, 26, 0.3);
            color: var(--brand);
            padding: 6px 14px;
            border-radius: 100px;
            font-size: 13px;
            font-weight: 500;
            margin-bottom: 24px;
        }

        .hero h1 {
            font-size: clamp(2.5rem, 5vw, 4.2rem);
            font-weight: 800;
            line-height: 1.15;
            letter-spacing: -0.02em;
            margin-bottom: 20px;
            color: var(--text-main);
        }

        .hero h1 .highlight {
            color: var(--brand);
            position: relative;
        }

        .hero-sub {
            font-size: 1.125rem;
            color: var(--text-sub);
            line-height: 1.9;
            max-width: 540px;
            margin-bottom: 32px;
        }

        .hero-stats {
            display: flex;
            gap: 32px;
            margin-bottom: 36px;
            flex-wrap: wrap;
        }

        .hero-stat {
            display: flex;
            flex-direction: column;
            gap: 2px;
        }

        .hero-stat .stat-label {
            font-size: 13px;
            color: var(--text-sub);
        }

        .hero-stat .stat-value {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-main);
        }

        .hero-ctas {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        .hero-visual {
            position: relative;
            transform: rotate(-2deg);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-hover);
        }

        .hero-visual img {
            width: 100%;
            height: 440px;
            object-fit: cover;
            filter: brightness(0.85) saturate(1.1);
        }

        .hero-visual::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(255, 122, 26, 0.2) 0%, transparent 40%, rgba(0, 229, 160, 0.15) 100%);
            mix-blend-mode: screen;
            pointer-events: none;
        }

        .hero-visual .hero-deco-ring {
            position: absolute;
            top: -60px;
            right: -60px;
            width: 160px;
            height: 160px;
            border: 3px solid rgba(255, 122, 26, 0.4);
            border-radius: 50%;
            background: rgba(255, 122, 26, 0.05);
            z-index: 2;
        }

        .hero-visual .hero-deco-bar {
            position: absolute;
            bottom: 30px;
            left: -40px;
            width: 180px;
            height: 4px;
            background: linear-gradient(90deg, var(--neon), transparent);
            transform: rotate(12deg);
            z-index: 2;
            border-radius: 4px;
        }

        .hero-trust {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 14px;
            color: var(--text-sub);
            margin-top: 24px;
        }

        .hero-trust i {
            color: var(--neon);
            font-size: 16px;
        }

        /* Section spacing */
        .section {
            padding: 100px 0;
        }

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

        .section-head {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 24px;
            margin-bottom: 48px;
        }

        .section-head h2 {
            font-size: clamp(1.6rem, 3vw, 2.25rem);
            font-weight: 700;
            color: var(--text-main);
            line-height: 1.25;
            position: relative;
            padding-left: 16px;
        }

        .section-head h2::before {
            content: '';
            position: absolute;
            left: 0;
            top: 6px;
            bottom: 6px;
            width: 4px;
            background: var(--brand);
            border-radius: 4px;
        }

        .section-head .section-desc {
            color: var(--text-sub);
            font-size: 15px;
            max-width: 640px;
        }

        .section-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--text-sub);
            font-size: 14px;
            font-weight: 500;
            transition: color 0.2s ease;
            white-space: nowrap;
        }

        .section-link:hover {
            color: var(--brand);
        }

        .section-link i {
            font-size: 12px;
        }

        /* Timeline */
        .timeline-section {
            background: var(--bg-panel);
            position: relative;
            background-image:
                linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
                linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
            background-size: 40px 40px;
        }

        .timeline-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            position: relative;
        }

        .timeline-grid::before {
            content: '';
            position: absolute;
            top: 26px;
            left: 50px;
            right: 50px;
            height: 2px;
            border-top: 2px dashed rgba(255, 255, 255, 0.15);
        }

        .timeline-step {
            position: relative;
            padding-top: 80px;
        }

        .timeline-node {
            position: absolute;
            top: 0;
            left: 0;
            width: 52px;
            height: 52px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 800;
            background: var(--bg-panel2);
            border: 3px solid var(--brand);
            color: var(--brand);
            box-shadow: 0 0 0 6px rgba(255, 122, 26, 0.08);
            z-index: 2;
        }

        .timeline-step:nth-child(even) .timeline-node {
            border-color: var(--neon);
            color: var(--neon);
            box-shadow: 0 0 0 6px rgba(0, 229, 160, 0.08);
        }

        .timeline-step h3 {
            font-size: 1.125rem;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 8px;
        }

        .timeline-step p {
            color: var(--text-sub);
            font-size: 14px;
            line-height: 1.7;
        }

        /* Feature cards */
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .feature-card {
            background: var(--bg-panel2);
            border-radius: 14px;
            padding: 32px 24px;
            border: 1px solid transparent;
            box-shadow: var(--shadow-card);
            transition: all 0.3s ease;
        }

        .feature-card:hover {
            background: #212838;
            border-color: rgba(255, 122, 26, 0.4);
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }

        .feature-icon {
            width: 52px;
            height: 52px;
            border-radius: 12px;
            background: rgba(255, 122, 26, 0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 20px;
            color: var(--brand);
            font-size: 22px;
            transition: all 0.3s ease;
        }

        .feature-card:hover .feature-icon {
            background: rgba(255, 122, 26, 0.2);
            box-shadow: 0 0 20px rgba(255, 122, 26, 0.3);
        }

        .feature-card h3 {
            font-size: 1.2rem;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 10px;
        }

        .feature-card p {
            color: var(--text-sub);
            font-size: 14px;
            line-height: 1.8;
        }

        .feature-more {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            margin-top: 16px;
            color: var(--brand);
            font-size: 14px;
            font-weight: 500;
            opacity: 0;
            transform: translateX(-4px);
            transition: all 0.3s ease;
        }

        .feature-card:hover .feature-more {
            opacity: 1;
            transform: translateX(0);
        }

        /* Pricing / benefit table */
        .pricing-section {
            background: var(--bg-main);
            position: relative;
        }

        .pricing-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            align-items: stretch;
        }

        .pricing-card {
            background: var(--bg-panel);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            border: 1px solid var(--border);
            transition: all 0.3s ease;
            position: relative;
            display: flex;
            flex-direction: column;
        }

        .pricing-card.featured {
            border: 2px solid var(--brand);
            box-shadow: 0 0 40px rgba(255, 122, 26, 0.15);
            background: var(--bg-panel2);
        }

        .pricing-badge {
            position: absolute;
            top: 0;
            right: 24px;
            transform: translateY(-50%);
            background: var(--brand);
            color: #0B0D16;
            font-size: 12px;
            font-weight: 800;
            padding: 4px 14px;
            border-radius: 100px;
            letter-spacing: 0.05em;
        }

        .pricing-card h3 {
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text-main);
        }

        .pricing-desc {
            color: var(--text-sub);
            font-size: 14px;
            margin-bottom: 24px;
            min-height: 44px;
        }

        .pricing-features {
            list-style: none;
            flex: 1;
            margin-bottom: 28px;
        }

        .pricing-features li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            padding: 8px 0;
            color: var(--text-main);
            font-size: 14px;
        }

        .pricing-features li .icon-check {
            color: var(--neon);
            font-size: 14px;
            flex-shrink: 0;
            margin-top: 2px;
        }

        .pricing-features li .icon-none {
            color: var(--text-dim);
            font-size: 14px;
            flex-shrink: 0;
            margin-top: 2px;
        }

        .pricing-features li .text-disabled {
            color: var(--text-dim);
        }

        .pricing-cta {
            margin-top: auto;
        }

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

        /* CTA / Contact */
        .cta-section {
            padding: 100px 0;
            position: relative;
            background: linear-gradient(rgba(11, 13, 22, 0.8), rgba(11, 13, 22, 0.92)), url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            background-attachment: fixed;
        }

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

        .cta-inner h2 {
            font-size: clamp(1.6rem, 3vw, 2.2rem);
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--text-main);
        }

        .cta-inner .cta-sub {
            color: var(--text-sub);
            font-size: 16px;
            margin-bottom: 36px;
        }

        .cta-form {
            background: rgba(255, 255, 255, 0.06);
            border-radius: var(--radius-lg);
            padding: 32px;
            backdrop-filter: blur(6px);
            border: 1px solid var(--border);
        }

        .form-row {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }

        .form-row input {
            flex: 1;
            min-width: 200px;
            height: 48px;
            background: rgba(0, 0, 0, 0.3);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--radius-md);
            color: var(--text-main);
            padding: 0 16px;
            font-size: 15px;
            transition: all 0.25s ease;
            outline: none;
        }

        .form-row input::placeholder {
            color: var(--text-dim);
        }

        .form-row input:focus {
            border-color: var(--brand);
            box-shadow: 0 0 0 4px rgba(255, 122, 26, 0.15);
        }

        .form-row .btn {
            height: 48px;
            flex-shrink: 0;
        }

        .cta-note {
            margin-top: 16px;
            font-size: 13px;
            color: var(--text-dim);
        }

        /* FAQ */
        .faq-grid {
            max-width: 860px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            background: var(--bg-panel);
            border-radius: var(--radius-md);
            border-left: 3px solid transparent;
            transition: all 0.2s ease;
            overflow: hidden;
        }

        .faq-item:hover {
            border-left-color: var(--brand);
        }

        .faq-item.open {
            background: var(--bg-panel2);
            border-left-color: var(--brand);
        }

        .faq-question {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 18px 20px;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-main);
            cursor: pointer;
            user-select: none;
        }

        .faq-question i {
            font-size: 14px;
            color: var(--text-sub);
            transition: transform 0.3s ease;
            flex-shrink: 0;
        }

        .faq-item.open .faq-question i {
            transform: rotate(45deg);
            color: var(--brand);
        }

        .faq-answer {
            padding: 0 20px;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease, padding 0.3s ease;
            color: var(--text-sub);
            font-size: 14px;
            line-height: 1.8;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 20px 18px;
        }

        /* News / CMS */
        .dynamic-news {
            background: var(--bg-panel);
        }

        .news-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .news-card {
            display: flex;
            gap: 20px;
            background: var(--bg-panel2);
            border-radius: var(--radius-lg);
            padding: 16px;
            border: 1px solid transparent;
            transition: all 0.3s ease;
            position: relative;
            overflow: hidden;
        }

        .news-card::before {
            content: '';
            position: absolute;
            left: 0;
            top: 0;
            bottom: 0;
            width: 3px;
            background: var(--brand);
            opacity: 0;
            transition: opacity 0.3s ease;
        }

        .news-card:hover {
            background: #1f2635;
            box-shadow: var(--shadow-hover);
        }

        .news-card:hover::before {
            opacity: 1;
        }

        .news-thumb {
            width: 160px;
            height: 100px;
            border-radius: var(--radius-md);
            object-fit: cover;
            flex-shrink: 0;
            background: var(--bg-main);
        }

        .news-info {
            flex: 1;
            display: flex;
            flex-direction: column;
            justify-content: center;
            min-width: 0;
        }

        .news-badge {
            display: inline-block;
            background: rgba(0, 229, 160, 0.15);
            color: var(--neon);
            font-size: 12px;
            padding: 2px 10px;
            border-radius: 100px;
            margin-bottom: 8px;
            width: fit-content;
            font-weight: 500;
        }

        .news-info h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 6px;
            overflow: hidden;
            text-overflow: ellipsis;
            display: -webkit-box;
            -webkit-line-clamp: 1;
            -webkit-box-orient: vertical;
        }

        .news-summary {
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.6;
            overflow: hidden;
            text-overflow: ellipsis;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            margin-bottom: 8px;
        }

        .news-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 12px;
            color: var(--text-dim);
        }

        .news-empty {
            text-align: center;
            padding: 60px 20px;
            background: var(--bg-panel2);
            border-radius: var(--radius-lg);
            font-size: 14px;
            color: var(--text-sub);
        }

        .news-empty i {
            font-size: 42px;
            color: var(--text-dim);
            margin-bottom: 12px;
            display: block;
        }

        /* Footer */
        .site-footer {
            background: #080A12;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding: 64px 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.5fr;
            gap: 40px;
            padding-bottom: 48px;
        }

        .footer-brand .logo {
            margin-bottom: 16px;
        }

        .footer-brand p {
            color: var(--text-sub);
            font-size: 14px;
            line-height: 1.8;
        }

        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 16px;
        }

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

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

        .footer-col ul li a {
            color: var(--text-sub);
            font-size: 14px;
            transition: color 0.2s ease;
        }

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

        .footer-contact p {
            display: flex;
            align-items: center;
            gap: 8px;
            color: var(--text-sub);
            font-size: 14px;
            margin-bottom: 10px;
        }

        .footer-contact i {
            color: var(--brand);
            width: 16px;
            font-size: 14px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding: 20px 0;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
        }

        .footer-bottom p {
            font-size: 13px;
            color: var(--text-dim);
        }

        /* Responsive */
        @media (max-width: 1023px) {
            .main-nav {
                display: none;
            }

            .hamburger-btn {
                display: flex;
            }

            .hero-grid {
                grid-template-columns: 1fr;
                gap: 40px;
            }

            .hero-visual {
                max-width: 100%;
                transform: none;
            }

            .hero-visual img {
                height: 320px;
            }

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

            .timeline-grid::before {
                display: none;
            }

            .timeline-step {
                padding-top: 0;
                padding-left: 72px;
                min-height: 60px;
            }

            .timeline-node {
                top: 4px;
            }

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

            .pricing-grid {
                grid-template-columns: 1fr;
                max-width: 480px;
                margin: 0 auto;
                gap: 20px;
            }

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

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

            .section {
                padding: 64px 0;
            }

            .section-head {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }

            .hero {
                padding: 100px 0 60px;
            }

            .hero-ctas {
                flex-direction: column;
            }

            .hero-ctas .btn {
                width: 100%;
            }

            .hero-visual img {
                height: 220px;
            }

            .hero-stats {
                gap: 20px;
            }

            .feature-grid {
                grid-template-columns: 1fr;
            }

            .form-row {
                flex-direction: column;
            }

            .form-row .btn {
                width: 100%;
            }

            .cta-form {
                padding: 24px 16px;
            }

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

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

            .news-card {
                flex-direction: column;
                padding: 12px;
            }

            .news-thumb {
                width: 100%;
                height: 160px;
            }

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

        @media (max-width: 480px) {
            .nav-left .logo span {
                font-size: 1rem;
            }

            .hero h1 {
                font-size: 2.2rem;
            }
        }

/* roulang page: article */
:root {
        --bg: #0B0D16;
        --bg-secondary: #131726;
        --bg-tertiary: #1A2030;
        --bg-deep: #080A12;
        --primary: #FF7A1A;
        --accent: #00E5A0;
        --pink: #FF3D6E;
        --text: #E8EDF5;
        --text-secondary: #8A93A6;
        --text-muted: #545D70;
        --border: rgba(255, 255, 255, 0.08);
        --radius-lg: 14px;
        --radius-md: 10px;
        --radius-sm: 6px;
        --shadow-card: 0 2px 8px rgba(0, 0, 0, 0.3);
        --shadow-hover: 0 8px 24px rgba(0, 0, 0, 0.5), 0 0 20px rgba(255, 122, 26, 0.15);
        --container: 1200px;
        --font: "PingFang SC", "Noto Sans SC", "Microsoft YaHei", system-ui, sans-serif;
        --transition: all 0.3s ease;
    }

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

    html {
        scroll-behavior: smooth;
    }

    body {
        font-family: var(--font);
        background-color: var(--bg);
        color: var(--text);
        line-height: 1.8;
        -webkit-font-smoothing: antialiased;
    }

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

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

    button,
    input {
        font-family: var(--font);
        border: none;
        outline: none;
    }

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

    .site-header {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        z-index: 1000;
        height: 64px;
        display: flex;
        align-items: center;
        background: rgba(11, 13, 22, 0.85);
        backdrop-filter: blur(12px);
        -webkit-backdrop-filter: blur(12px);
        border-bottom: 1px solid var(--border);
        transition: var(--transition);
    }

    .site-header.scrolled {
        background: rgba(11, 13, 22, 0.95);
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
    }

    .header-inner {
        display: flex;
        align-items: center;
        justify-content: space-between;
        height: 64px;
        gap: 24px;
    }

    .logo {
        display: flex;
        align-items: center;
        gap: 10px;
        font-weight: 700;
        font-size: 1.1rem;
        letter-spacing: 0.02em;
        white-space: nowrap;
        flex-shrink: 0;
    }

    .logo-mark {
        width: 38px;
        height: 38px;
        background: var(--primary);
        color: var(--bg);
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 1.25rem;
        font-weight: 800;
        border-radius: 8px 4px 12px 4px;
        clip-path: polygon(25% 0, 75% 0, 100% 50%, 75% 100%, 25% 100%, 0 50%);
        flex-shrink: 0;
    }

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

    .main-nav a {
        position: relative;
        padding: 8px 16px;
        font-size: 0.95rem;
        font-weight: 500;
        color: var(--text-secondary);
        white-space: nowrap;
        border-radius: var(--radius-sm);
        transition: var(--transition);
    }

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

    .main-nav a.active {
        color: var(--primary);
    }

    .main-nav a.active::after {
        content: '';
        position: absolute;
        left: 16px;
        right: 16px;
        bottom: 2px;
        height: 2px;
        background: var(--primary);
        border-radius: 2px;
    }

    .header-actions {
        display: flex;
        align-items: center;
        gap: 12px;
        flex-shrink: 0;
    }

    .btn {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: 8px;
        padding: 12px 28px;
        border-radius: var(--radius-md);
        font-weight: 700;
        font-size: 0.95rem;
        cursor: pointer;
        transition: var(--transition);
        border: 1px solid transparent;
        line-height: 1;
    }

    .btn-primary {
        background: var(--primary);
        color: var(--bg);
    }

    .btn-primary:hover {
        background: #ff8c3d;
        transform: translateY(-2px);
        box-shadow: 0 6px 20px rgba(255, 122, 26, 0.35);
    }

    .btn-primary:active {
        transform: translateY(0);
        filter: brightness(0.92);
    }

    .btn-primary:focus-visible {
        outline: 2px solid rgba(255, 122, 26, 0.6);
        outline-offset: 2px;
    }

    .btn-sm {
        padding: 10px 22px;
        font-size: 0.9rem;
    }

    .btn-outline {
        background: transparent;
        border-color: rgba(0, 229, 160, 0.5);
        color: var(--accent);
    }

    .btn-outline:hover {
        background: rgba(0, 229, 160, 0.1);
        border-color: var(--accent);
        transform: translateY(-2px);
    }

    .btn-block {
        width: 100%;
    }

    .nav-toggle {
        display: none;
        flex-direction: column;
        justify-content: center;
        gap: 5px;
        width: 42px;
        height: 42px;
        background: transparent;
        cursor: pointer;
        padding: 10px;
        border-radius: var(--radius-sm);
    }

    .nav-toggle span {
        display: block;
        height: 2px;
        width: 100%;
        background: var(--text);
        border-radius: 2px;
        transition: var(--transition);
    }

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

    .nav-toggle.active span:nth-child(2) {
        opacity: 0;
    }

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

    /* 分页横幅 */
    .page-banner {
        position: relative;
        padding: 140px 0 60px;
        background-size: cover;
        background-position: center;
        background-color: var(--bg-secondary);
    }

    .page-banner::before {
        content: '';
        position: absolute;
        inset: 0;
        background: linear-gradient(135deg, rgba(11, 13, 22, 0.94) 20%, rgba(11, 13, 22, 0.72) 60%, rgba(11, 13, 22, 0.45));
        z-index: 1;
    }

    .page-banner::after {
        content: '';
        position: absolute;
        right: -80px;
        top: -80px;
        width: 280px;
        height: 280px;
        border: 40px solid rgba(255, 122, 26, 0.12);
        border-radius: 50%;
        z-index: 0;
    }

    .page-banner .container {
        position: relative;
        z-index: 2;
    }

    .breadcrumb {
        display: flex;
        align-items: center;
        gap: 10px;
        font-size: 0.85rem;
        color: var(--text-secondary);
        margin-bottom: 22px;
        flex-wrap: wrap;
    }

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

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

    .breadcrumb .sep {
        color: var(--text-muted);
    }

    .breadcrumb .current {
        color: var(--text);
        max-width: 320px;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
    }

    .badge {
        display: inline-flex;
        align-items: center;
        padding: 4px 14px;
        border-radius: 20px;
        font-size: 0.78rem;
        font-weight: 600;
        background: rgba(0, 229, 160, 0.15);
        color: var(--accent);
        letter-spacing: 0.03em;
    }

    .badge-orange {
        background: rgba(255, 122, 26, 0.15);
        color: var(--primary);
    }

    .badge-pink {
        background: rgba(255, 61, 110, 0.15);
        color: var(--pink);
    }

    .article-header h1 {
        font-size: clamp(1.75rem, 3.5vw, 2.75rem);
        font-weight: 800;
        line-height: 1.25;
        margin: 16px 0 18px;
        max-width: 780px;
        letter-spacing: -0.01em;
    }

    .article-meta {
        display: flex;
        align-items: center;
        gap: 22px;
        font-size: 0.85rem;
        color: var(--text-secondary);
        flex-wrap: wrap;
    }

    .article-meta i {
        margin-right: 5px;
        color: var(--primary);
    }

    /* 正文区域 */
    .article-layout {
        padding: 50px 24px 70px;
    }

    .article-body-wrap {
        max-width: 860px;
        margin: 0 auto;
    }

    .article-body {
        font-size: 1.0625rem;
        line-height: 1.9;
        color: var(--text);
    }

    .article-body h2 {
        font-size: 1.65rem;
        font-weight: 700;
        margin: 42px 0 20px;
        padding-left: 14px;
        border-left: 4px solid var(--primary);
        line-height: 1.35;
    }

    .article-body h3 {
        font-size: 1.3rem;
        font-weight: 600;
        margin: 32px 0 16px;
        line-height: 1.4;
    }

    .article-body h4 {
        font-size: 1.1rem;
        font-weight: 600;
        margin: 26px 0 12px;
        color: var(--primary);
    }

    .article-body p {
        margin-bottom: 22px;
    }

    .article-body a {
        color: var(--primary);
        border-bottom: 1px solid rgba(255, 122, 26, 0.3);
    }

    .article-body a:hover {
        color: var(--accent);
        border-color: var(--accent);
    }

    .article-body img {
        max-width: 100%;
        border-radius: 12px;
        margin: 24px 0;
        border: 1px solid var(--border);
    }

    .article-body blockquote {
        border-left: 4px solid var(--accent);
        background: var(--bg-secondary);
        padding: 18px 22px;
        margin: 24px 0;
        border-radius: 0 var(--radius-md) var(--radius-md) 0;
        color: var(--text-secondary);
        font-style: normal;
    }

    .article-body ul,
    .article-body ol {
        margin: 0 0 22px 24px;
    }

    .article-body li {
        margin-bottom: 10px;
    }

    .article-body li::marker {
        color: var(--primary);
    }

    .article-body strong {
        color: var(--text);
        font-weight: 700;
    }

    .article-body hr {
        border: none;
        border-top: 1px solid var(--border);
        margin: 40px 0;
    }

    .article-body code {
        background: var(--bg-tertiary);
        color: var(--accent);
        padding: 3px 8px;
        border-radius: 4px;
        font-size: 0.9em;
        font-family: "SFMono-Regular", Consolas, monospace;
    }

    .article-not-found {
        text-align: center;
        padding: 80px 20px;
        background: var(--bg-secondary);
        border-radius: var(--radius-lg);
        border: 1px solid var(--border);
    }

    .article-not-found h2 {
        font-size: 1.5rem;
        margin-bottom: 16px;
        color: var(--text);
    }

    .article-not-found p {
        color: var(--text-secondary);
        margin-bottom: 28px;
    }

    /* 相关推荐 */
    .related-section {
        max-width: 1100px;
        margin: 60px auto 0;
        padding: 0;
    }

    .section-title {
        font-size: clamp(1.4rem, 2.5vw, 1.8rem);
        font-weight: 700;
        margin-bottom: 26px;
        position: relative;
        padding-left: 16px;
        line-height: 1.3;
    }

    .section-title::before {
        content: '';
        position: absolute;
        left: 0;
        top: 8px;
        bottom: 8px;
        width: 4px;
        background: var(--primary);
        border-radius: 2px;
    }

    .related-cards {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 24px;
    }

    .related-card {
        display: flex;
        flex-direction: column;
        background: var(--bg-secondary);
        border: 1px solid var(--border);
        border-radius: var(--radius-lg);
        overflow: hidden;
        transition: var(--transition);
    }

    .related-card:hover {
        transform: translateY(-4px);
        border-color: rgba(255, 122, 26, 0.4);
        box-shadow: var(--shadow-hover);
        background: var(--bg-tertiary);
    }

    .related-cover {
        height: 170px;
        overflow: hidden;
        position: relative;
    }

    .related-cover img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        transition: transform 0.4s ease;
    }

    .related-card:hover .related-cover img {
        transform: scale(1.05);
    }

    .related-cover::after {
        content: '';
        position: absolute;
        inset: 0;
        background: linear-gradient(to top, rgba(11, 13, 22, 0.5), transparent);
    }

    .related-info {
        padding: 20px 22px;
        flex: 1;
        display: flex;
        flex-direction: column;
    }

    .related-info .badge {
        align-self: flex-start;
        margin-bottom: 12px;
    }

    .related-info h3 {
        font-size: 1.1rem;
        font-weight: 600;
        margin-bottom: 10px;
        line-height: 1.4;
        color: var(--text);
    }

    .related-info p {
        font-size: 0.875rem;
        color: var(--text-secondary);
        line-height: 1.7;
        flex: 1;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
    }

    /* CTA 区块 */
    .article-cta {
        margin-top: 70px;
        background: var(--bg-secondary);
        border: 1px solid var(--border);
        border-radius: var(--radius-lg);
        padding: 48px;
        text-align: center;
        position: relative;
        overflow: hidden;
    }

    .article-cta::before {
        content: '';
        position: absolute;
        left: -60px;
        bottom: -60px;
        width: 150px;
        height: 150px;
        border-radius: 50%;
        background: rgba(0, 229, 160, 0.08);
    }

    .article-cta::after {
        content: '';
        position: absolute;
        right: -40px;
        top: -40px;
        width: 120px;
        height: 120px;
        border-radius: 50%;
        background: rgba(255, 122, 26, 0.1);
    }

    .article-cta .cta-inner {
        position: relative;
        z-index: 1;
    }

    .article-cta h2 {
        font-size: 1.7rem;
        font-weight: 700;
        margin-bottom: 12px;
    }

    .article-cta p {
        color: var(--text-secondary);
        margin-bottom: 26px;
        font-size: 1rem;
        max-width: 520px;
        margin-left: auto;
        margin-right: auto;
    }

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

    /* 页脚 */
    .site-footer {
        background: var(--bg-deep);
        border-top: 1px solid var(--border);
        padding: 70px 0 0;
    }

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

    .footer-grid {
        display: grid;
        grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
        gap: 48px;
        padding-bottom: 50px;
    }

    .footer-brand p {
        color: var(--text-secondary);
        font-size: 0.9rem;
        line-height: 1.8;
        margin-top: 16px;
        max-width: 320px;
    }

    .footer-col h4 {
        font-size: 1rem;
        font-weight: 600;
        margin-bottom: 20px;
        color: var(--text);
    }

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

    .footer-col ul li {
        margin-bottom: 12px;
    }

    .footer-col ul li a {
        color: var(--text-secondary);
        font-size: 0.9rem;
        line-height: 1.6;
    }

    .footer-col ul li a:hover {
        color: var(--primary);
        padding-left: 4px;
    }

    .footer-contact p {
        color: var(--text-secondary);
        font-size: 0.9rem;
        margin-bottom: 12px;
        display: flex;
        align-items: center;
        gap: 8px;
    }

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

    .footer-bottom {
        border-top: 1px solid var(--border);
        padding: 22px 0;
        display: flex;
        justify-content: space-between;
        align-items: center;
        flex-wrap: wrap;
        gap: 10px;
    }

    .footer-bottom p {
        color: var(--text-muted);
        font-size: 0.82rem;
    }

    /* 响应式 */
    @media (max-width: 1024px) {
        .footer-grid {
            grid-template-columns: 1fr 1fr;
            gap: 36px;
        }

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

    @media (max-width: 767px) {
        .container {
            padding: 0 16px;
        }

        .main-nav {
            position: fixed;
            top: 64px;
            right: -100%;
            bottom: 0;
            width: min(300px, 78%);
            background: var(--bg);
            flex-direction: column;
            align-items: flex-start;
            gap: 4px;
            padding: 30px 24px;
            transition: right 0.3s ease;
            border-left: 1px solid var(--border);
            z-index: 999;
            box-shadow: -8px 0 30px rgba(0, 0, 0, 0.5);
            margin: 0;
        }

        .main-nav.open {
            right: 0;
        }

        .main-nav a {
            font-size: 1.1rem;
            padding: 12px 0;
            color: var(--text);
            width: 100%;
            border-bottom: 1px solid rgba(255, 255, 255, 0.04);
        }

        .main-nav a.active::after {
            left: 0;
            right: auto;
            width: 3px;
            height: 20px;
            top: 50%;
            transform: translateY(-50%);
            bottom: auto;
            border-radius: 2px;
        }

        .nav-toggle {
            display: flex;
        }

        .header-actions .btn-sm {
            padding: 8px 16px;
            font-size: 0.85rem;
        }

        .page-banner {
            padding: 110px 0 40px;
        }

        .article-layout {
            padding: 36px 0 50px;
        }

        .article-body {
            font-size: 1rem;
            line-height: 1.85;
        }

        .article-body h2 {
            font-size: 1.35rem;
        }

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

        .related-cover {
            height: 160px;
        }

        .article-cta {
            padding: 32px 20px;
            margin-top: 50px;
        }

        .article-cta h2 {
            font-size: 1.4rem;
        }

        .cta-buttons {
            flex-direction: column;
        }

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

        .footer-grid {
            grid-template-columns: 1fr;
            gap: 30px;
            padding-bottom: 34px;
        }

        .footer-bottom {
            flex-direction: column;
            text-align: center;
            padding: 18px 0;
        }
    }

    @media (max-width: 520px) {
        .logo {
            font-size: 0.95rem;
        }

        .logo-mark {
            width: 34px;
            height: 34px;
            font-size: 1.1rem;
        }

        .breadcrumb {
            font-size: 0.78rem;
        }

        .article-header h1 {
            font-size: 1.5rem;
        }

        .article-meta {
            gap: 12px;
            flex-direction: column;
            align-items: flex-start;
        }

        .article-body-wrap {
            padding: 0 4px;
        }

        .section-title {
            font-size: 1.3rem;
        }
    }

/* roulang page: category1 */
:root {
            --bg-main: #0B0D16;
            --bg-secondary: #131726;
            --bg-card: #1A2030;
            --bg-deep: #080A12;
            --bg-hover: #212838;
            --primary: #FF7A1A;
            --primary-hover: #FF8F3D;
            --accent: #00E5A0;
            --pink: #FF3D6E;
            --text-main: #E8EDF5;
            --text-sub: #8A93A6;
            --text-muted: #545D70;
            --border: rgba(255, 255, 255, 0.08);
            --radius-lg: 16px;
            --radius-md: 10px;
            --radius-sm: 6px;
            --shadow-card: 0 2px 8px rgba(0, 0, 0, 0.3);
            --shadow-hover: 0 8px 24px rgba(0, 0, 0, 0.5), 0 0 20px rgba(255, 122, 26, 0.15);
        }
        *,
        *::before,
        *::after {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: "PingFang SC", "Noto Sans SC", "Microsoft YaHei", system-ui, sans-serif;
            background-color: var(--bg-main);
            color: var(--text-main);
            line-height: 1.8;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: var(--text-main);
            text-decoration: none;
            transition: color 0.2s ease;
        }
        img {
            max-width: 100%;
            display: block;
        }
        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== Buttons ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 28px;
            border-radius: var(--radius-md);
            font-weight: 700;
            font-size: 0.95rem;
            line-height: 1.4;
            transition: all 0.25s cubic-bezier(0.3, 0.7, 0.4, 1);
            border: 1px solid transparent;
            cursor: pointer;
            white-space: nowrap;
        }
        .btn-primary {
            background: var(--primary);
            color: #0B0D16;
            box-shadow: 0 4px 20px rgba(255, 122, 26, 0.25);
        }
        .btn-primary:hover {
            background: var(--primary-hover);
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(255, 122, 26, 0.4);
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 2px 10px rgba(255, 122, 26, 0.3);
        }
        .btn-primary:focus-visible {
            outline: 2px solid rgba(255, 122, 26, 0.6);
            outline-offset: 2px;
        }
        .btn-secondary {
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.25);
            color: var(--text-main);
        }
        .btn-secondary:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: rgba(0, 229, 160, 0.6);
            color: var(--accent);
            transform: translateY(-2px);
        }
        .btn-secondary:active {
            transform: translateY(0);
        }
        .btn-sm {
            padding: 8px 20px;
            font-size: 0.875rem;
        }
        .btn-lg {
            padding: 16px 40px;
            font-size: 1.05rem;
            border-radius: 12px;
        }
        .btn-block {
            display: flex;
            width: 100%;
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 100;
            height: 64px;
            display: flex;
            align-items: center;
            background: transparent;
            transition: background 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
            border-bottom: 1px solid transparent;
        }
        .site-header.scrolled {
            background: rgba(11, 13, 22, 0.9);
            backdrop-filter: blur(12px);
            border-bottom-color: var(--border);
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            gap: 24px;
        }
        .header-left {
            display: flex;
            align-items: center;
            gap: 40px;
            flex: 1;
        }
        .header-right {
            display: flex;
            align-items: center;
            gap: 16px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.15rem;
            font-weight: 800;
            letter-spacing: 0.01em;
            white-space: nowrap;
        }
        .logo-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--primary), #FF5A2A);
            color: #0B0D16;
            font-size: 1.1rem;
            font-weight: 900;
            border-radius: 10px;
            transform: rotate(0deg);
            box-shadow: 0 4px 16px rgba(255, 122, 26, 0.35);
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 28px;
        }
        .main-nav a {
            position: relative;
            font-size: 0.92rem;
            color: var(--text-sub);
            font-weight: 500;
            padding-bottom: 4px;
            transition: color 0.2s ease;
        }
        .main-nav a::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: -2px;
            width: 100%;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
            transform: scaleX(0);
            transform-origin: left center;
            transition: transform 0.25s ease;
        }
        .main-nav a:hover {
            color: var(--primary);
        }
        .main-nav a:hover::after {
            transform: scaleX(1);
        }
        .main-nav a.active {
            color: var(--primary);
            font-weight: 600;
        }
        .main-nav a.active::after {
            transform: scaleX(1);
        }
        .icon-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: var(--radius-md);
            color: var(--text-sub);
            font-size: 1rem;
            transition: all 0.2s ease;
            border: 1px solid transparent;
        }
        .icon-btn:hover {
            color: var(--primary);
            background: rgba(255, 122, 26, 0.1);
            border-color: rgba(255, 122, 26, 0.2);
        }
        .hamburger {
            display: none;
            flex-direction: column;
            justify-content: center;
            gap: 5px;
            width: 40px;
            height: 40px;
            padding: 8px;
            border-radius: var(--radius-md);
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid var(--border);
            transition: all 0.2s ease;
        }
        .hamburger span {
            display: block;
            height: 2px;
            width: 100%;
            background: var(--text-main);
            border-radius: 2px;
            transition: all 0.3s ease;
        }
        .hamburger.active span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .hamburger.active span:nth-child(2) {
            opacity: 0;
        }
        .hamburger.active span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }
        .mobile-drawer {
            display: none;
            position: fixed;
            top: 0;
            right: -320px;
            width: 280px;
            height: 100vh;
            background: #0F121E;
            border-left: 1px solid var(--border);
            z-index: 99;
            padding: 80px 28px 32px;
            flex-direction: column;
            gap: 8px;
            transition: right 0.3s ease;
        }
        .mobile-drawer.open {
            right: 0;
        }
        .mobile-drawer a {
            font-size: 1.1rem;
            padding: 14px 12px;
            border-radius: var(--radius-md);
            font-weight: 500;
            color: var(--text-sub);
            transition: all 0.2s ease;
        }
        .mobile-drawer a:hover,
        .mobile-drawer a.active {
            color: var(--primary);
            background: rgba(255, 122, 26, 0.08);
        }
        .mobile-drawer .drawer-cta {
            margin-top: 24px;
        }

        /* ===== Hero ===== */
        .hero {
            position: relative;
            padding: 140px 0 80px;
            min-height: 80vh;
            display: flex;
            align-items: center;
            overflow: hidden;
        }
        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: radial-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px);
            background-size: 24px 24px;
            pointer-events: none;
        }
        .hero-inner {
            display: grid;
            grid-template-columns: 55% 45%;
            gap: 60px;
            align-items: center;
            position: relative;
            z-index: 1;
            max-width: 1400px;
        }
        .hero-content {
            padding-top: 20px;
        }
        .hero-eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--accent);
            background: rgba(0, 229, 160, 0.1);
            padding: 6px 16px;
            border-radius: 30px;
            margin-bottom: 24px;
            letter-spacing: 0.05em;
        }
        .hero-content h1 {
            font-size: clamp(2.5rem, 5vw, 4.2rem);
            font-weight: 800;
            line-height: 1.15;
            letter-spacing: -0.02em;
            margin-bottom: 20px;
        }
        .hero-highlight {
            color: var(--primary);
        }
        .hero-sub {
            font-size: 1.1rem;
            color: var(--text-sub);
            line-height: 1.8;
            max-width: 520px;
            margin-bottom: 32px;
        }
        .hero-ctas {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            margin-bottom: 36px;
        }
        .hero-meta {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
            font-size: 0.85rem;
            color: var(--text-sub);
        }
        .hero-meta span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .hero-meta i {
            color: var(--accent);
        }
        .hero-visual {
            position: relative;
            height: 480px;
        }
        .hero-visual::before {
            content: '';
            position: absolute;
            top: -40px;
            right: -30px;
            width: 260px;
            height: 260px;
            border-radius: 50%;
            background: rgba(255, 122, 26, 0.18);
            filter: blur(60px);
            z-index: 0;
        }
        .hero-visual::after {
            content: '';
            position: absolute;
            bottom: 30px;
            left: -20px;
            width: 180px;
            height: 4px;
            background: linear-gradient(90deg, transparent, rgba(0, 229, 160, 0.8), transparent);
            border-radius: 2px;
            z-index: 1;
        }
        .hero-img-wrap {
            position: relative;
            width: 100%;
            height: 100%;
            border-radius: 20px;
            overflow: hidden;
            transform: skewY(-2deg);
            border: 1px solid var(--border);
            box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
        }
        .hero-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transform: scale(1.08);
            filter: brightness(0.85);
        }
        .hero-img-wrap::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(11, 13, 22, 0.2) 0%, transparent 60%);
        }

        /* ===== Section ===== */
        .section {
            padding: 80px 0;
        }
        .section-alt {
            background: var(--bg-secondary);
        }
        .section-head {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-head h2 {
            font-size: clamp(1.6rem, 3vw, 2.25rem);
            font-weight: 700;
            line-height: 1.25;
            display: inline-block;
            position: relative;
            padding-left: 18px;
        }
        .section-head h2::before {
            content: '';
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 4px;
            height: 30px;
            background: linear-gradient(180deg, var(--primary), var(--pink));
            border-radius: 2px;
        }
        .section-head .section-desc {
            color: var(--text-sub);
            margin-top: 12px;
            font-size: 1rem;
            line-height: 1.8;
            max-width: 640px;
            margin-left: auto;
            margin-right: auto;
        }

        /* ===== Feature Cards ===== */
        .grid-3 {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .feature-card {
            position: relative;
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            transition: all 0.3s ease;
            overflow: hidden;
        }
        .feature-card:hover {
            background: var(--bg-hover);
            border-color: rgba(255, 122, 26, 0.4);
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .feature-card .card-num {
            position: absolute;
            top: 20px;
            right: 24px;
            font-size: 3rem;
            font-weight: 800;
            color: rgba(255, 255, 255, 0.06);
            line-height: 1;
            transition: color 0.3s ease;
        }
        .feature-card:hover .card-num {
            color: rgba(255, 122, 26, 0.2);
        }
        .feature-card .card-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 52px;
            height: 52px;
            border-radius: 14px;
            background: rgba(255, 122, 26, 0.12);
            color: var(--primary);
            font-size: 1.3rem;
            margin-bottom: 20px;
        }
        .feature-card h3 {
            font-size: 1.2rem;
            font-weight: 600;
            margin-bottom: 8px;
        }
        .feature-card p {
            font-size: 0.92rem;
            color: var(--text-sub);
            line-height: 1.8;
        }
        .feature-card .card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            margin-top: 16px;
            color: var(--accent);
            font-size: 0.875rem;
            font-weight: 600;
            transition: gap 0.2s ease;
        }
        .feature-card .card-link:hover {
            gap: 10px;
        }

        /* ===== Detail Blocks ===== */
        .detail-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
            margin-bottom: 48px;
        }
        .detail-block:last-child {
            margin-bottom: 0;
        }
        .detail-block.reverse .detail-image {
            order: 2;
        }
        .detail-block.reverse .detail-content {
            order: 1;
        }
        .detail-image {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            height: 320px;
            border: 1px solid var(--border);
        }
        .detail-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .detail-image:hover img {
            transform: scale(1.04);
        }
        .detail-image::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 50%, rgba(11, 13, 22, 0.4));
        }
        .detail-content h3 {
            font-size: 1.4rem;
            font-weight: 700;
            margin-bottom: 12px;
            line-height: 1.4;
        }
        .detail-content p {
            color: var(--text-sub);
            font-size: 0.95rem;
            line-height: 1.9;
            margin-bottom: 16px;
        }
        .detail-list {
            list-style: none;
        }
        .detail-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 0.92rem;
            color: var(--text-main);
            padding: 8px 0;
        }
        .detail-list li i {
            color: var(--accent);
            font-size: 0.9rem;
            margin-top: 4px;
        }

        /* ===== Timeline ===== */
        .timeline {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            position: relative;
        }
        .timeline::before {
            content: '';
            position: absolute;
            top: 22px;
            left: 8%;
            right: 8%;
            height: 2px;
            border-top: 2px dashed rgba(255, 255, 255, 0.15);
            z-index: 0;
        }
        .timeline-item {
            position: relative;
            text-align: center;
            z-index: 1;
        }
        .timeline-dot {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            font-size: 1rem;
            font-weight: 700;
            border: 3px solid var(--bg-main);
            margin-bottom: 16px;
            position: relative;
        }
        .timeline-item:nth-child(odd) .timeline-dot {
            background: var(--primary);
            color: #0B0D16;
            box-shadow: 0 0 0 3px rgba(255, 122, 26, 0.3);
        }
        .timeline-item:nth-child(even) .timeline-dot {
            background: var(--accent);
            color: #0B0D16;
            box-shadow: 0 0 0 3px rgba(0, 229, 160, 0.3);
        }
        .timeline-item h3 {
            font-size: 1.05rem;
            font-weight: 600;
            margin-bottom: 6px;
        }
        .timeline-item p {
            font-size: 0.88rem;
            color: var(--text-sub);
            line-height: 1.7;
        }

        /* ===== Scenario Cards ===== */
        .scenario-card {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            height: 360px;
            border: 1px solid var(--border);
            transition: all 0.3s ease;
        }
        .scenario-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(255, 122, 26, 0.4);
        }
        .scenario-card img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .scenario-card:hover img {
            transform: scale(1.05);
        }
        .scenario-card .scenario-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(11, 13, 22, 0.1) 0%, rgba(11, 13, 22, 0.85) 100%);
            display: flex;
            flex-direction: column;
            justify-content: flex-end;
            padding: 28px;
        }
        .scenario-card .scenario-tag {
            display: inline-block;
            background: rgba(0, 229, 160, 0.2);
            color: var(--accent);
            font-size: 0.75rem;
            font-weight: 600;
            padding: 3px 12px;
            border-radius: 20px;
            margin-bottom: 10px;
            align-self: flex-start;
        }
        .scenario-card h3 {
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: 6px;
        }
        .scenario-card p {
            font-size: 0.88rem;
            color: rgba(232, 237, 245, 0.8);
            line-height: 1.7;
        }

        /* ===== Quote Band ===== */
        .quote-band {
            background: var(--bg-card);
            border-left: 4px solid var(--primary);
            border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
            padding: 32px 36px;
            margin: 0 0 48px;
        }
        .quote-band p {
            font-size: 1.1rem;
            line-height: 1.9;
            font-style: italic;
            color: var(--text-main);
        }
        .quote-band .quote-source {
            margin-top: 12px;
            font-size: 0.85rem;
            color: var(--text-sub);
            font-style: normal;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 760px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--bg-secondary);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            margin-bottom: 12px;
            overflow: hidden;
            transition: border-color 0.3s ease, background 0.3s ease;
        }
        .faq-item:hover {
            border-left: 3px solid var(--primary);
        }
        .faq-item.open {
            background: var(--bg-card);
            border-left: 3px solid var(--primary);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 20px;
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-main);
            cursor: pointer;
            width: 100%;
            text-align: left;
            background: transparent;
            border: none;
        }
        .faq-question .faq-arrow {
            color: var(--text-sub);
            font-size: 0.85rem;
            transition: transform 0.3s ease;
            flex-shrink: 0;
            margin-left: 16px;
        }
        .faq-item.open .faq-arrow {
            transform: rotate(180deg);
            color: var(--primary);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease;
        }
        .faq-answer-inner {
            padding: 0 20px 18px;
            font-size: 0.9rem;
            color: var(--text-sub);
            line-height: 1.8;
        }

        /* ===== CTA ===== */
        .cta-section {
            position: relative;
            padding: 100px 0;
            text-align: center;
            background: url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(11, 13, 22, 0.78);
            backdrop-filter: blur(2px);
        }
        .cta-inner {
            position: relative;
            z-index: 1;
        }
        .cta-inner h2 {
            font-size: clamp(1.8rem, 3.5vw, 2.6rem);
            font-weight: 800;
            margin-bottom: 16px;
            line-height: 1.3;
        }
        .cta-inner p {
            font-size: 1.05rem;
            color: var(--text-sub);
            margin-bottom: 32px;
        }
        .cta-actions {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-deep);
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding: 64px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand .logo {
            margin-bottom: 16px;
        }
        .footer-brand p {
            font-size: 0.9rem;
            color: var(--text-sub);
            line-height: 1.8;
        }
        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 600;
            margin-bottom: 16px;
            color: var(--text-main);
        }
        .footer-col ul {
            list-style: none;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul li a {
            font-size: 0.88rem;
            color: var(--text-sub);
            transition: color 0.2s ease, padding-left 0.2s ease;
        }
        .footer-col ul li a:hover {
            color: var(--primary);
            padding-left: 4px;
        }
        .footer-contact p {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 0.88rem;
            color: var(--text-sub);
            margin-bottom: 10px;
        }
        .footer-contact i {
            color: var(--primary);
            width: 16px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding: 20px 0;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
        }
        .footer-bottom p {
            font-size: 0.82rem;
            color: var(--text-muted);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1023px) {
            .main-nav {
                display: none;
            }
            .hamburger {
                display: flex;
            }
            .mobile-drawer {
                display: flex;
            }
            .hero {
                padding: 120px 0 60px;
            }
            .hero-inner {
                grid-template-columns: 1fr;
                gap: 40px;
            }
            .hero-content {
                padding-top: 0;
            }
            .hero-visual {
                height: 360px;
            }
            .grid-3 {
                grid-template-columns: repeat(2, 1fr);
            }
            .detail-block {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .detail-block.reverse .detail-image {
                order: 0;
            }
            .detail-block.reverse .detail-content {
                order: 0;
            }
            .timeline {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .timeline::before {
                display: none;
            }
            .timeline-item {
                text-align: left;
                display: grid;
                grid-template-columns: 48px 1fr;
                gap: 16px;
                align-items: start;
            }
            .timeline-dot {
                margin-bottom: 0;
                grid-row: 1 / 3;
            }
            .timeline-item h3 {
                margin-top: 12px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 640px) {
            .container {
                padding: 0 16px;
            }
            .section {
                padding: 48px 0;
            }
            .hero {
                padding: 100px 0 48px;
            }
            .hero-sub {
                font-size: 1rem;
            }
            .hero-ctas {
                flex-direction: column;
                width: 100%;
            }
            .hero-ctas .btn {
                width: 100%;
            }
            .hero-meta {
                flex-direction: column;
                gap: 8px;
            }
            .hero-visual {
                height: 260px;
            }
            .grid-3 {
                grid-template-columns: 1fr;
            }
            .feature-card {
                padding: 24px 20px;
            }
            .detail-image {
                height: 220px;
            }
            .detail-content h3 {
                font-size: 1.2rem;
            }
            .scenario-card {
                height: 280px;
            }
            .scenario-card .scenario-overlay {
                padding: 20px;
            }
            .quote-band {
                padding: 24px;
            }
            .quote-band p {
                font-size: 1rem;
            }
            .faq-question {
                font-size: 0.92rem;
                padding: 16px;
            }
            .faq-answer-inner {
                padding: 0 16px 16px;
                font-size: 0.85rem;
            }
            .cta-section {
                padding: 64px 0;
            }
            .cta-actions {
                flex-direction: column;
                width: 100%;
            }
            .cta-actions .btn {
                width: 100%;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .header-inner {
                gap: 12px;
            }
            .logo span:last-child {
                font-size: 0.95rem;
            }
            .logo-mark {
                width: 32px;
                height: 32px;
                font-size: 0.95rem;
            }
        }
        @media (min-width: 640px) and (max-width: 1023px) {
            .grid-3 {
                grid-template-columns: repeat(2, 1fr);
            }
            .grid-3 .feature-card:last-child {
                grid-column: 1 / -1;
            }
        }

/* roulang page: category2 */
:root {
            --bg-primary: #0B0D16;
            --bg-secondary: #131726;
            --bg-tertiary: #1A2030;
            --accent: #FF7A1A;
            --accent-secondary: #00E5A0;
            --accent-danger: #FF3D6E;
            --text-primary: #E8EDF5;
            --text-secondary: #8A93A6;
            --text-muted: #545D70;
            --border: rgba(255, 255, 255, 0.08);
            --radius-lg: 16px;
            --radius-md: 10px;
            --radius-sm: 6px;
            --shadow-card: 0 2px 8px rgba(0, 0, 0, 0.3);
            --shadow-hover: 0 8px 24px rgba(0, 0, 0, 0.5);
            --glow-orange: 0 0 20px rgba(255, 122, 26, 0.15);
            --transition: all 0.3s ease;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: "PingFang SC", "Noto Sans SC", "Microsoft YaHei", system-ui, sans-serif;
            background: var(--bg-primary);
            color: var(--text-primary);
            font-size: 16px;
            line-height: 1.8;
            -webkit-font-smoothing: antialiased;
        }

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

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

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

        ul,
        ol {
            list-style: none;
        }

        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

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

        /* ========== Buttons ========== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-weight: 700;
            font-size: 15px;
            line-height: 1;
            border-radius: var(--radius-md);
            padding: 14px 28px;
            transition: var(--transition);
            cursor: pointer;
            border: 1px solid transparent;
            white-space: nowrap;
        }

        .btn-primary {
            background: var(--accent);
            color: #0B0D16;
        }

        .btn-primary:hover {
            background: #ff8a3d;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(255, 122, 26, 0.35);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: none;
            background: #e66c0b;
        }

        .btn-primary:focus-visible {
            outline: 2px solid rgba(255, 122, 26, 0.6);
            outline-offset: 2px;
        }

        .btn-ghost {
            background: transparent;
            border-color: rgba(255, 255, 255, 0.25);
            color: var(--text-primary);
        }

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

        .btn-outline {
            background: transparent;
            border-color: var(--accent-secondary);
            color: var(--accent-secondary);
        }

        .btn-outline:hover {
            background: rgba(0, 229, 160, 0.1);
            box-shadow: 0 0 16px rgba(0, 229, 160, 0.15);
        }

        .btn-sm {
            padding: 10px 18px;
            font-size: 14px;
        }

        .btn-block {
            width: 100%;
        }

        .btn-lg {
            padding: 16px 40px;
            font-size: 16px;
        }

        /* ========== Header ========== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 100;
            height: 64px;
            border-bottom: 1px solid transparent;
            transition: var(--transition);
        }

        .site-header.scrolled {
            background: rgba(11, 13, 22, 0.92);
            backdrop-filter: blur(12px);
            border-bottom-color: var(--border);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
            gap: 24px;
        }

        .header-left {
            display: flex;
            align-items: center;
            gap: 32px;
            min-width: 0;
        }

        .logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 18px;
            font-weight: 800;
            color: var(--text-primary);
            white-space: nowrap;
        }

        .logo-mark {
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--accent), #ffb26b);
            color: #0B0D16;
            font-size: 20px;
            font-weight: 900;
            display: flex;
            align-items: center;
            justify-content: center;
            clip-path: polygon(50% 0%, 100% 25%, 100% 75%, 50% 100%, 0% 75%, 0% 25%);
        }

        .main-nav {
            display: none;
            align-items: center;
            gap: 4px;
        }

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

        .main-nav a {
            position: relative;
            display: inline-block;
            padding: 8px 14px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: var(--radius-sm);
            transition: var(--transition);
        }

        .main-nav a::after {
            content: "";
            position: absolute;
            left: 14px;
            right: 14px;
            bottom: 2px;
            height: 2px;
            background: var(--accent);
            transform: scaleX(0);
            transform-origin: left;
            transition: transform 0.3s ease;
        }

        .main-nav a:hover {
            color: var(--accent);
        }

        .main-nav a:hover::after {
            transform: scaleX(1);
        }

        .main-nav a.active {
            color: var(--accent);
            font-weight: 700;
        }

        .main-nav a.active::after {
            transform: scaleX(1);
        }

        .header-right {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .icon-btn {
            width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: var(--radius-md);
            color: var(--text-secondary);
            font-size: 16px;
            cursor: pointer;
            transition: var(--transition);
            background: transparent;
        }

        .icon-btn:hover {
            color: var(--accent);
            background: rgba(255, 122, 26, 0.08);
        }

        .menu-toggle {
            display: flex;
        }

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

        .header-login {
            display: none;
        }

        @media (min-width: 1024px) {
            .header-login {
                display: inline-flex;
            }
        }

        /* Mobile Drawer */
        .mobile-drawer {
            position: fixed;
            top: 0;
            right: -280px;
            width: 280px;
            height: 100vh;
            background: #0F121D;
            z-index: 200;
            padding: 24px;
            display: flex;
            flex-direction: column;
            gap: 24px;
            transition: right 0.3s ease;
            box-shadow: -8px 0 30px rgba(0, 0, 0, 0.5);
        }

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

        .drawer-head {
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .drawer-nav {
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .drawer-nav a {
            padding: 14px 12px;
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--text-primary);
            border-radius: var(--radius-md);
            transition: var(--transition);
        }

        .drawer-nav a:hover,
        .drawer-nav a.active {
            color: var(--accent);
            background: rgba(255, 122, 26, 0.08);
        }

        .drawer-cta {
            margin-top: auto;
        }

        .drawer-overlay {
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.6);
            z-index: 150;
            opacity: 0;
            pointer-events: none;
            transition: opacity 0.3s ease;
        }

        .drawer-overlay.active {
            opacity: 1;
            pointer-events: auto;
        }

        /* ========== Page Hero ========== */
        .page-hero {
            position: relative;
            padding: 150px 0 70px;
            background: linear-gradient(rgba(11, 13, 22, 0.88), rgba(11, 13, 22, 0.96)), url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
            border-bottom: 1px solid var(--border);
            overflow: hidden;
        }

        .page-hero::before {
            content: "";
            position: absolute;
            top: -80px;
            right: -80px;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            border: 1px solid rgba(255, 122, 26, 0.25);
            box-shadow: 0 0 0 30px rgba(255, 122, 26, 0.03), 0 0 0 60px rgba(255, 122, 26, 0.03);
        }

        .page-hero::after {
            content: "";
            position: absolute;
            bottom: 0;
            left: 10%;
            right: 0;
            height: 2px;
            background: linear-gradient(90deg, transparent, var(--accent), var(--accent-secondary), transparent);
            opacity: 0.5;
        }

        .page-hero-inner {
            position: relative;
            z-index: 2;
            max-width: 840px;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-secondary);
            margin-bottom: 20px;
        }

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

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

        .breadcrumb i {
            font-size: 10px;
            color: var(--text-muted);
        }

        .page-hero h1 {
            font-size: clamp(2rem, 4.5vw, 3.2rem);
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 18px;
            letter-spacing: 0.5px;
        }

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

        .hero-sub {
            font-size: clamp(1rem, 1.5vw, 1.125rem);
            color: var(--text-secondary);
            line-height: 1.9;
            max-width: 680px;
            margin-bottom: 28px;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            margin-bottom: 36px;
        }

        .hero-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 32px;
        }

        .stat-item {
            display: flex;
            flex-direction: column;
            gap: 2px;
        }

        .stat-num {
            font-size: 24px;
            font-weight: 800;
            color: var(--accent-secondary);
            line-height: 1.2;
        }

        .stat-label {
            font-size: 13px;
            color: var(--text-secondary);
        }

        @media (max-width: 640px) {
            .page-hero {
                padding: 120px 0 48px;
            }

            .hero-actions {
                flex-direction: column;
                align-items: stretch;
            }

            .hero-actions .btn {
                width: 100%;
            }

            .hero-stats {
                gap: 20px;
            }

            .stat-num {
                font-size: 20px;
            }
        }

        /* ========== Content Grid ========== */
        .content-area {
            padding: 64px 0 48px;
        }

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

        @media (min-width: 1024px) {
            .content-grid {
                grid-template-columns: 2fr 1fr;
                gap: 40px;
            }
        }

        .main-col {
            min-width: 0;
            display: flex;
            flex-direction: column;
            gap: 56px;
        }

        .side-col {
            min-width: 0;
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        /* Section titles */
        .section-title {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: clamp(1.35rem, 2.2vw, 1.7rem);
            font-weight: 700;
            line-height: 1.3;
            margin-bottom: 28px;
            color: var(--text-primary);
            padding-left: 14px;
            border-left: 4px solid var(--accent);
        }

        .section-title .sub-icon {
            color: var(--accent);
            font-size: 0.6em;
        }

        /* ========== Feature Panel ========== */
        .feature-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 20px;
        }

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

        .feature-card {
            background: var(--bg-tertiary);
            border: 1px solid var(--border);
            border-radius: 14px;
            padding: 24px;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }

        .feature-card::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            width: 3px;
            height: 100%;
            background: var(--accent);
            opacity: 0;
            transition: var(--transition);
        }

        .feature-card:hover {
            transform: translateY(-4px);
            border-color: rgba(255, 122, 26, 0.4);
            box-shadow: var(--shadow-hover), var(--glow-orange);
        }

        .feature-card:hover::before {
            opacity: 1;
        }

        .feature-card-wide {
            grid-column: span 1;
        }

        @media (min-width: 640px) {
            .feature-card-wide {
                grid-column: span 2;
            }
        }

        .feature-icon {
            width: 48px;
            height: 48px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(255, 122, 26, 0.12);
            border-radius: 10px;
            color: var(--accent);
            font-size: 20px;
            margin-bottom: 16px;
            transition: var(--transition);
        }

        .feature-card:hover .feature-icon {
            box-shadow: 0 0 20px rgba(255, 122, 26, 0.25);
        }

        .feature-card h3 {
            font-size: 1.125rem;
            font-weight: 600;
            margin-bottom: 10px;
            color: var(--text-primary);
        }

        .feature-card p {
            font-size: 14px;
            line-height: 1.8;
            color: var(--text-secondary);
        }

        /* ========== Process Timeline ========== */
        .process-panel {
            background: var(--bg-secondary);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 32px;
        }

        .timeline-wrap {
            display: grid;
            grid-template-columns: 1fr;
            gap: 28px;
        }

        @media (min-width: 1024px) {
            .timeline-wrap {
                grid-template-columns: repeat(4, 1fr);
                gap: 20px;
            }
        }

        .timeline-item {
            position: relative;
            padding-top: 56px;
        }

        .timeline-item::before {
            content: "";
            position: absolute;
            top: 22px;
            left: 0;
            right: 0;
            height: 2px;
            border-top: 2px dashed rgba(255, 255, 255, 0.15);
        }

        .timeline-item:first-child::before {
            left: 22px;
        }

        .timeline-item:last-child::before {
            right: calc(100% - 22px);
        }

        .timeline-dot {
            position: absolute;
            top: 0;
            left: 0;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            border: 3px solid var(--accent);
            background: var(--bg-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            font-weight: 700;
            color: var(--accent);
            z-index: 1;
        }

        .timeline-item:nth-child(2n) .timeline-dot {
            border-color: var(--accent-secondary);
            color: var(--accent-secondary);
        }

        .timeline-item:nth-child(1) .timeline-dot {
            background: var(--accent);
            color: #0B0D16;
        }

        .timeline-step-body h3 {
            font-size: 1.0625rem;
            font-weight: 600;
            margin-bottom: 8px;
            color: var(--text-primary);
        }

        .timeline-step-body p {
            font-size: 14px;
            line-height: 1.75;
            color: var(--text-secondary);
        }

        @media (max-width: 1023px) {
            .process-panel {
                padding: 24px;
            }

            .timeline-wrap {
                gap: 32px;
            }

            .timeline-item {
                padding: 0 0 0 64px;
            }

            .timeline-item::before {
                top: 44px;
                bottom: -20px;
                left: 21px;
                right: auto;
                width: 2px;
                height: auto;
                border: none;
                border-left: 2px dashed rgba(255, 255, 255, 0.15);
            }

            .timeline-item:first-child::before {
                left: 21px;
            }

            .timeline-item:last-child::before {
                display: none;
            }

            .timeline-dot {
                top: 0;
                left: 0;
            }
        }

        /* ========== Method Cards ========== */
        .method-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 20px;
        }

        @media (min-width: 640px) {
            .method-grid {
                grid-template-columns: repeat(3, 1fr);
            }
        }

        .method-card {
            background: var(--bg-tertiary);
            border: 1px solid var(--border);
            border-radius: 14px;
            overflow: hidden;
            transition: var(--transition);
        }

        .method-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover), var(--glow-orange);
            border-color: rgba(255, 122, 26, 0.35);
        }

        .method-thumb {
            width: 100%;
            height: 120px;
            object-fit: cover;
        }

        .method-body {
            padding: 20px;
        }

        .method-body h3 {
            font-size: 1.0625rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 8px;
        }

        .method-body p {
            font-size: 13px;
            line-height: 1.75;
            color: var(--text-secondary);
        }

        /* ========== FAQ ========== */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            background: var(--bg-secondary);
            border: 1px solid var(--border);
            border-left: 3px solid transparent;
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-item:hover {
            border-left-color: var(--accent);
        }

        .faq-item.open {
            background: var(--bg-tertiary);
            border-left-color: var(--accent);
        }

        .faq-q {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 20px;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            cursor: pointer;
            user-select: none;
            transition: var(--transition);
        }

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

        .faq-q i {
            font-size: 14px;
            color: var(--text-muted);
            transition: transform 0.3s ease;
            flex-shrink: 0;
        }

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

        .faq-a {
            max-height: 0;
            padding: 0 20px;
            font-size: 14px;
            line-height: 1.85;
            color: var(--text-secondary);
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
        }

        .faq-item.open .faq-a {
            max-height: 400px;
            padding: 0 20px 20px;
        }

        /* ========== Sidebar ========== */
        .side-card {
            background: var(--bg-secondary);
            border: 1px solid var(--border);
            border-radius: 14px;
            padding: 26px;
            transition: var(--transition);
        }

        .side-card:hover {
            border-color: rgba(255, 122, 26, 0.3);
            box-shadow: var(--shadow-card);
        }

        .side-card-head {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 14px;
        }

        .side-card-head i {
            width: 42px;
            height: 42px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(255, 122, 26, 0.12);
            border-radius: 10px;
            color: var(--accent);
            font-size: 18px;
            flex-shrink: 0;
        }

        .side-card-head h3 {
            font-size: 1.0625rem;
            font-weight: 700;
            color: var(--text-primary);
        }

        .side-card p {
            font-size: 14px;
            line-height: 1.8;
            color: var(--text-secondary);
            margin-bottom: 16px;
        }

        .side-card-check {
            background: linear-gradient(160deg, rgba(255, 122, 26, 0.06), rgba(11, 13, 22, 0.4)), url('/assets/images/coverpic/cover-2.webp') center/cover no-repeat, var(--bg-secondary);
        }

        .quick-links {
            display: flex;
            flex-direction: column;
            gap: 2px;
        }

        .quick-links a {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 12px 4px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: var(--radius-sm);
            transition: var(--transition);
            border-bottom: 1px solid var(--border);
        }

        .quick-links a:last-child {
            border-bottom: none;
        }

        .quick-links a i {
            width: 20px;
            text-align: center;
            color: var(--accent-secondary);
            font-size: 14px;
        }

        .quick-links a:hover {
            color: var(--accent);
            padding-left: 10px;
            background: rgba(255, 122, 26, 0.05);
        }

        .support-line {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 12px;
            background: rgba(0, 229, 160, 0.08);
            border-radius: var(--radius-md);
            color: var(--accent-secondary) !important;
            font-weight: 600;
            font-size: 13px !important;
            margin: 0;
        }

        /* ========== CTA Section ========== */
        .cta-section {
            position: relative;
            padding: 72px 0;
            background: linear-gradient(rgba(11, 13, 22, 0.93), rgba(11, 13, 22, 0.93)), url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            text-align: center;
            border-top: 1px solid var(--border);
            overflow: hidden;
        }

        .cta-section::before {
            content: "";
            position: absolute;
            left: -100px;
            top: 50%;
            transform: translateY(-50%);
            width: 260px;
            height: 260px;
            border-radius: 50%;
            border: 1px solid rgba(255, 122, 26, 0.15);
            box-shadow: 0 0 0 40px rgba(255, 122, 26, 0.02);
        }

        .cta-inner {
            position: relative;
            z-index: 2;
            max-width: 680px;
            margin: 0 auto;
        }

        .cta-inner h2 {
            font-size: clamp(1.6rem, 3vw, 2.25rem);
            font-weight: 800;
            line-height: 1.3;
            margin-bottom: 14px;
        }

        .cta-inner h2 .highlight {
            color: var(--accent);
        }

        .cta-inner p {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.9;
            margin-bottom: 28px;
        }

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

        @media (max-width: 640px) {
            .cta-section {
                padding: 48px 0;
            }

            .cta-actions {
                flex-direction: column;
                align-items: stretch;
            }

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

        /* ========== Footer ========== */
        .site-footer {
            background: #080A12;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding: 56px 0 0;
        }

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

        @media (min-width: 768px) {
            .footer-grid {
                grid-template-columns: 1.4fr 0.8fr 0.8fr 1fr;
            }
        }

        .footer-brand .logo {
            margin-bottom: 14px;
        }

        .footer-brand p {
            font-size: 14px;
            color: #8A93A6;
            line-height: 1.8;
            margin-top: 12px;
            max-width: 300px;
        }

        .footer-col h4 {
            font-size: 15px;
            font-weight: 700;
            color: #E8EDF5;
            margin-bottom: 16px;
        }

        .footer-col ul {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-col ul a {
            font-size: 14px;
            color: #8A93A6;
            transition: var(--transition);
        }

        .footer-col ul a:hover {
            color: var(--accent);
            padding-left: 4px;
        }

        .footer-contact p {
            font-size: 14px;
            color: #8A93A6;
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 10px;
        }

        .footer-contact i {
            color: var(--accent);
            width: 16px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding: 20px 0;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 6px;
            text-align: center;
        }

        .footer-bottom p {
            font-size: 13px;
            color: #545D70;
        }

        /* ========== Responsive ========== */
        @media (max-width: 1023px) {
            .content-area {
                padding: 48px 0 32px;
            }

            .main-col {
                gap: 40px;
            }

            .side-col {
                margin-top: 8px;
            }
        }

        @media (max-width: 640px) {
            .content-area {
                padding: 32px 0 24px;
            }

            .section-title {
                font-size: 1.25rem;
                margin-bottom: 20px;
            }

            .feature-card {
                padding: 20px;
            }

            .process-panel {
                padding: 20px;
            }

            .side-card {
                padding: 20px;
            }

            .footer-bottom {
                padding: 16px 12px;
            }
        }

/* roulang page: category3 */
:root {
            --bg-primary: #0B0D16;
            --bg-secondary: #131726;
            --bg-deeper: #1A2030;
            --brand-orange: #FF7A1A;
            --brand-cyan: #00E5A0;
            --brand-magenta: #FF3D6E;
            --text-primary: #E8EDF5;
            --text-secondary: #8A93A6;
            --text-muted: #545D70;
            --border-color: rgba(255, 255, 255, 0.08);
            --radius-lg: 16px;
            --radius-md: 10px;
            --radius-sm: 6px;
            --shadow-card: 0 2px 8px rgba(0, 0, 0, 0.3);
            --shadow-hover: 0 8px 24px rgba(0, 0, 0, 0.5), 0 0 20px rgba(255, 122, 26, 0.15);
            --transition: all 0.3s ease;
        }

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

        html {
            scroll-behavior: smooth;
        }

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

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

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

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

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .section {
            padding: 88px 0;
        }

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

        .section-alt::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, transparent, rgba(255, 122, 26, 0.3), transparent);
        }

        .section-head {
            text-align: center;
            max-width: 680px;
            margin: 0 auto 56px;
        }

        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--brand-cyan);
            background: rgba(0, 229, 160, 0.08);
            border: 1px solid rgba(0, 229, 160, 0.2);
            border-radius: 999px;
            padding: 6px 16px;
            margin-bottom: 16px;
        }

        .section-head h2 {
            font-size: clamp(1.6rem, 3vw, 2.25rem);
            font-weight: 700;
            line-height: 1.3;
            margin-bottom: 14px;
            position: relative;
            display: inline-block;
        }

        .section-head h2::after {
            content: "";
            position: absolute;
            bottom: -8px;
            left: 50%;
            transform: translateX(-50%);
            width: 48px;
            height: 4px;
            background: var(--brand-orange);
            border-radius: 2px;
        }

        .section-head .section-desc {
            color: var(--text-secondary);
            font-size: 1rem;
            margin-top: 18px;
            line-height: 1.9;
        }

        /* ===== Header ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: 64px;
            background: transparent;
            transition: background 0.35s ease, box-shadow 0.35s ease, border-color 0.35s ease;
            border-bottom: 1px solid transparent;
        }

        .site-header.scrolled {
            background: rgba(11, 13, 22, 0.9);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom-color: rgba(255, 255, 255, 0.06);
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
            gap: 24px;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 1.25rem;
            white-space: nowrap;
            color: var(--text-primary);
            transition: color 0.2s;
        }

        .logo:hover {
            color: var(--brand-orange);
        }

        .logo-mark {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--brand-orange), #ff9d47);
            color: var(--bg-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 900;
            font-size: 1.2rem;
            box-shadow: 0 4px 14px rgba(255, 122, 26, 0.3);
            clip-path: polygon(50% 0%, 85% 25%, 85% 75%, 50% 100%, 15% 75%, 15% 25%);
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            flex: 1;
            justify-content: center;
        }

        .main-nav a {
            position: relative;
            padding: 10px 14px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: 8px;
            transition: color 0.25s;
            white-space: nowrap;
        }

        .main-nav a::after {
            content: "";
            position: absolute;
            left: 14px;
            right: 14px;
            bottom: 2px;
            height: 2px;
            background: var(--brand-orange);
            border-radius: 2px;
            transform: scaleX(0);
            transform-origin: left;
            transition: transform 0.3s ease;
        }

        .main-nav a:hover {
            color: var(--text-primary);
        }

        .main-nav a:hover::after {
            transform: scaleX(1);
        }

        .main-nav a.active {
            color: var(--brand-orange);
            font-weight: 600;
        }

        .main-nav a.active::after {
            transform: scaleX(1);
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .icon-btn {
            width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 10px;
            color: var(--text-secondary);
            font-size: 1rem;
            transition: all 0.2s;
            cursor: pointer;
            border: 1px solid transparent;
        }

        .icon-btn:hover {
            color: var(--text-primary);
            background: rgba(255, 255, 255, 0.06);
            border-color: var(--border-color);
        }

        .menu-toggle {
            display: none;
            width: 40px;
            height: 40px;
            align-items: center;
            justify-content: center;
            border-radius: 10px;
            color: var(--text-primary);
            font-size: 1.1rem;
            cursor: pointer;
            border: 1px solid var(--border-color);
            background: rgba(255, 255, 255, 0.04);
        }

        .menu-toggle:hover {
            background: rgba(255, 255, 255, 0.1);
        }

        /* ===== Buttons ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 11px 26px;
            border-radius: 10px;
            font-weight: 700;
            font-size: 0.92rem;
            transition: all 0.3s ease;
            text-decoration: none;
            cursor: pointer;
            line-height: 1.5;
            white-space: nowrap;
        }

        .btn-primary {
            background: var(--brand-orange);
            color: #0B0D16;
            box-shadow: 0 4px 16px rgba(255, 122, 26, 0.25);
        }

        .btn-primary:hover {
            background: #FF8F3C;
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(255, 122, 26, 0.4);
        }

        .btn-primary:active {
            transform: translateY(0);
            background: #EA6E0B;
            box-shadow: 0 2px 8px rgba(255, 122, 26, 0.3);
        }

        .btn-primary:focus-visible {
            outline: 2px solid rgba(255, 122, 26, 0.6);
            outline-offset: 2px;
        }

        .btn-ghost {
            background: transparent;
            color: var(--text-primary);
            border: 1px solid rgba(255, 255, 255, 0.25);
        }

        .btn-ghost:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: rgba(255, 255, 255, 0.5);
            transform: translateY(-2px);
        }

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

        .btn-ghost:focus-visible {
            outline: 2px solid rgba(0, 229, 160, 0.5);
            outline-offset: 2px;
        }

        .btn-sm {
            padding: 8px 18px;
            font-size: 0.85rem;
        }

        .btn-lg {
            padding: 14px 36px;
            font-size: 1.05rem;
        }

        .btn-block {
            width: 100%;
        }

        /* ===== Hero ===== */
        .page-hero {
            position: relative;
            min-height: 92vh;
            display: flex;
            align-items: center;
            padding: 120px 0 80px;
            overflow: hidden;
            background: var(--bg-primary);
        }

        .hero-bg {
            position: absolute;
            inset: 0;
            background-size: cover;
            background-position: center;
            opacity: 0.5;
            transform: scale(1.02);
        }

        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(11, 13, 22, 0.95) 45%, rgba(11, 13, 22, 0.45) 75%, rgba(11, 13, 22, 0.75) 100%);
        }

        .hero-overlay::after {
            content: "";
            position: absolute;
            top: -100px;
            right: -100px;
            width: 400px;
            height: 400px;
            border-radius: 50%;
            border: 60px solid rgba(255, 122, 26, 0.12);
            pointer-events: none;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 720px;
            margin-left: 0;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--brand-cyan);
            background: rgba(0, 229, 160, 0.1);
            border: 1px solid rgba(0, 229, 160, 0.25);
            border-radius: 999px;
            padding: 6px 16px;
            margin-bottom: 24px;
            letter-spacing: 0.02em;
        }

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

        .page-hero h1 {
            font-size: clamp(2.4rem, 5vw, 4.2rem);
            font-weight: 800;
            line-height: 1.15;
            margin-bottom: 22px;
            color: var(--text-primary);
        }

        .page-hero h1 span {
            color: var(--brand-orange);
        }

        .hero-subtitle {
            font-size: 1.1rem;
            color: var(--text-secondary);
            margin-bottom: 34px;
            max-width: 620px;
            line-height: 1.9;
        }

        .hero-buttons {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        /* ===== Feature Cards ===== */
        .card-grid-3 {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .feature-card {
            background: var(--bg-deeper);
            border-radius: 14px;
            padding: 32px 26px;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-card);
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }

        .feature-card::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--brand-orange), var(--brand-cyan));
            transform: scaleX(0);
            transform-origin: left;
            transition: transform 0.4s ease;
        }

        .feature-card:hover {
            background: #212838;
            border-color: rgba(255, 122, 26, 0.4);
            box-shadow: var(--shadow-hover);
            transform: translateY(-6px);
        }

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

        .feature-icon {
            width: 52px;
            height: 52px;
            border-radius: 12px;
            background: rgba(255, 122, 26, 0.12);
            border: 1px solid rgba(255, 122, 26, 0.25);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            color: var(--brand-orange);
            margin-bottom: 20px;
            transition: all 0.3s;
        }

        .feature-card:hover .feature-icon {
            background: rgba(255, 122, 26, 0.2);
            box-shadow: 0 0 20px rgba(255, 122, 26, 0.2);
        }

        .feature-card h3 {
            font-size: 1.2rem;
            font-weight: 600;
            margin-bottom: 10px;
            color: var(--text-primary);
        }

        .feature-card p {
            color: var(--text-secondary);
            font-size: 0.92rem;
            line-height: 1.85;
            margin-bottom: 16px;
        }

        .card-link {
            color: var(--brand-orange);
            font-size: 0.88rem;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: gap 0.2s;
        }

        .card-link:hover {
            gap: 10px;
        }

        /* ===== Split layout ===== */
        .split-layout {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .split-item {
            background: var(--bg-deeper);
            border-radius: 14px;
            overflow: hidden;
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }

        .split-item:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(0, 229, 160, 0.3);
        }

        .split-img {
            height: 200px;
            overflow: hidden;
            position: relative;
        }

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

        .split-item:hover .split-img img {
            transform: scale(1.05);
        }

        .split-img::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 60%, rgba(11, 13, 22, 0.8));
        }

        .split-content {
            padding: 22px 22px 26px;
        }

        .split-content h3 {
            font-size: 1.1rem;
            font-weight: 600;
            margin-bottom: 8px;
            color: var(--text-primary);
        }

        .split-content p {
            color: var(--text-secondary);
            font-size: 0.9rem;
            line-height: 1.8;
        }

        /* ===== News grid ===== */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }

        .news-card-h {
            display: flex;
            background: var(--bg-deeper);
            border-radius: 14px;
            overflow: hidden;
            border: 1px solid var(--border-color);
            transition: var(--transition);
            min-height: 180px;
        }

        .news-card-h:hover {
            border-color: rgba(255, 122, 26, 0.4);
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }

        .news-card-h .news-thumb {
            width: 200px;
            min-width: 200px;
            overflow: hidden;
            position: relative;
        }

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

        .news-card-h:hover .news-thumb img {
            transform: scale(1.06);
        }

        .news-card-h .news-body {
            padding: 22px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .badge {
            display: inline-flex;
            align-items: center;
            font-size: 0.75rem;
            font-weight: 600;
            padding: 3px 10px;
            border-radius: 999px;
            letter-spacing: 0.02em;
            margin-bottom: 10px;
            width: fit-content;
        }

        .badge-cyan {
            color: var(--brand-cyan);
            background: rgba(0, 229, 160, 0.1);
            border: 1px solid rgba(0, 229, 160, 0.25);
        }

        .badge-orange {
            color: var(--brand-orange);
            background: rgba(255, 122, 26, 0.12);
            border: 1px solid rgba(255, 122, 26, 0.3);
        }

        .badge-magenta {
            color: var(--brand-magenta);
            background: rgba(255, 61, 110, 0.1);
            border: 1px solid rgba(255, 61, 110, 0.25);
        }

        .news-card-h h3 {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .news-card-h p {
            color: var(--text-secondary);
            font-size: 0.88rem;
            line-height: 1.75;
            margin-bottom: 10px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-meta {
            display: flex;
            gap: 16px;
            color: var(--text-muted);
            font-size: 0.8rem;
        }

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

        /* ===== Timeline ===== */
        .timeline {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
            position: relative;
        }

        .timeline::before {
            content: "";
            position: absolute;
            top: 22px;
            left: 12.5%;
            right: 12.5%;
            height: 2px;
            background: repeating-linear-gradient(90deg, rgba(255, 255, 255, 0.15) 0 6px, transparent 6px 12px);
        }

        .timeline-step {
            text-align: center;
            padding: 0 12px;
            position: relative;
            transition: transform 0.3s;
        }

        .timeline-step:hover {
            transform: translateY(-4px);
        }

        .timeline-node {
            width: 46px;
            height: 46px;
            border-radius: 50%;
            margin: 0 auto 18px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 1.05rem;
            position: relative;
            z-index: 2;
            background: var(--bg-secondary);
            border: 3px solid var(--brand-orange);
            color: var(--brand-orange);
        }

        .timeline-step:nth-child(2) .timeline-node {
            border-color: var(--brand-cyan);
            color: var(--brand-cyan);
        }

        .timeline-step:nth-child(3) .timeline-node {
            border-color: var(--brand-orange);
            color: var(--brand-orange);
        }

        .timeline-step h3 {
            font-size: 1.08rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 8px;
        }

        .timeline-step p {
            color: var(--text-secondary);
            font-size: 0.9rem;
            line-height: 1.8;
            max-width: 240px;
            margin: 0 auto;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 820px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .faq-item {
            background: var(--bg-secondary);
            border-radius: 10px;
            padding: 24px 26px;
            border-left: 3px solid transparent;
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }

        .faq-item:hover {
            border-left-color: var(--brand-orange);
            background: var(--bg-deeper);
            box-shadow: var(--shadow-card);
        }

        .faq-item h3 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 8px;
        }

        .faq-item p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.85;
        }

        /* ===== CTA ===== */
        .cta-section {
            position: relative;
            padding: 100px 0;
            background: var(--bg-secondary);
            text-align: center;
            overflow: hidden;
        }

        .cta-section::before {
            content: "";
            position: absolute;
            bottom: -140px;
            left: 50%;
            transform: translateX(-50%);
            width: 600px;
            height: 300px;
            background: radial-gradient(ellipse, rgba(255, 122, 26, 0.15), transparent 70%);
            pointer-events: none;
        }

        .cta-section h2 {
            font-size: clamp(1.7rem, 3vw, 2.4rem);
            font-weight: 800;
            line-height: 1.3;
            margin-bottom: 16px;
        }

        .cta-section p {
            color: var(--text-secondary);
            font-size: 1.05rem;
            max-width: 520px;
            margin: 0 auto 36px;
        }

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

        /* ===== Footer ===== */
        .site-footer {
            background: #080A12;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding: 72px 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 48px;
            padding-bottom: 40px;
        }

        .footer-brand .logo {
            margin-bottom: 16px;
        }

        .footer-brand p {
            color: var(--text-secondary);
            font-size: 0.9rem;
            line-height: 1.9;
            max-width: 360px;
        }

        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 18px;
            letter-spacing: 0.03em;
        }

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

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

        .footer-col ul li a {
            color: var(--text-secondary);
            font-size: 0.9rem;
            transition: color 0.2s, padding-left 0.2s;
        }

        .footer-col ul li a:hover {
            color: var(--brand-orange);
            padding-left: 4px;
        }

        .footer-contact p {
            color: var(--text-secondary);
            font-size: 0.9rem;
            margin-bottom: 10px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .footer-contact p i {
            color: var(--brand-cyan);
            width: 16px;
            text-align: center;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            padding: 22px 0;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 10px;
        }

        .footer-bottom p {
            color: var(--text-muted);
            font-size: 0.82rem;
        }

        .footer-bottom p:first-child {
            font-weight: 500;
        }

        /* ===== Mobile Drawer ===== */
        .mobile-drawer {
            position: fixed;
            top: 0;
            right: -320px;
            width: 300px;
            height: 100vh;
            background: var(--bg-primary);
            z-index: 1100;
            padding: 28px 24px;
            display: flex;
            flex-direction: column;
            gap: 20px;
            transition: right 0.35s ease;
            box-shadow: -8px 0 40px rgba(0, 0, 0, 0.6);
            border-left: 1px solid rgba(255, 255, 255, 0.06);
        }

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

        .drawer-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-bottom: 16px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .drawer-header .logo-text {
            font-weight: 800;
            font-size: 1.1rem;
            color: var(--text-primary);
        }

        .drawer-close {
            width: 38px;
            height: 38px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 8px;
            color: var(--text-secondary);
            font-size: 1.1rem;
            cursor: pointer;
            transition: background 0.2s;
            border: 1px solid var(--border-color);
        }

        .drawer-close:hover {
            background: rgba(255, 255, 255, 0.08);
            color: var(--text-primary);
        }

        .drawer-nav {
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .drawer-nav a {
            display: block;
            padding: 12px 14px;
            font-size: 1.05rem;
            color: var(--text-secondary);
            border-radius: 10px;
            transition: all 0.2s;
            font-weight: 500;
        }

        .drawer-nav a:hover,
        .drawer-nav a.active {
            background: rgba(255, 122, 26, 0.1);
            color: var(--brand-orange);
        }

        .drawer-overlay {
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.55);
            z-index: 1050;
            opacity: 0;
            visibility: hidden;
            transition: all 0.35s;
        }

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

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .main-nav {
                display: none;
            }

            .menu-toggle {
                display: flex;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 36px;
            }
        }

        @media (min-width: 640px) and (max-width: 1023px) {
            .card-grid-3,
            .split-layout {
                grid-template-columns: repeat(2, 1fr);
            }

            .split-item:last-child {
                grid-column: 1 / -1;
            }

            .split-item:last-child .split-img {
                height: 280px;
            }

            .news-grid {
                grid-template-columns: 1fr;
            }

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

            .timeline::before {
                display: none;
            }

            .page-hero {
                min-height: auto;
                padding: 140px 0 70px;
            }
        }

        @media (max-width: 639px) {
            .container {
                padding: 0 16px;
            }

            .section {
                padding: 56px 0;
            }

            .page-hero {
                padding: 120px 0 50px;
                min-height: auto;
            }

            .page-hero h1 {
                font-size: 2rem;
            }

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

            .hero-buttons {
                flex-direction: column;
                gap: 12px;
            }

            .hero-buttons .btn {
                width: 100%;
            }

            .card-grid-3,
            .split-layout,
            .news-grid {
                grid-template-columns: 1fr;
            }

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

            .news-card-h .news-thumb {
                width: 100%;
                min-width: 0;
                height: 180px;
            }

            .timeline {
                grid-template-columns: 1fr;
                gap: 20px;
            }

            .timeline::before {
                display: none;
            }

            .timeline-node {
                margin-bottom: 12px;
            }

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

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

            .cta-section {
                padding: 64px 0;
            }

            .cta-buttons {
                flex-direction: column;
                gap: 12px;
            }

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

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

            .section-head {
                margin-bottom: 36px;
            }
        }

        @media (prefers-reduced-motion: reduce) {
            *,
            *::before,
            *::after {
                animation-duration: 0.01ms !important;
                transition-duration: 0.01ms !important;
            }
        }