/* roulang page: index */
:root {
            --primary: #E8562A;
            --accent: #F5B700;
            --bg-deep: #0B0F1A;
            --bg-card: #141A28;
            --bg-dark: #070A12;
            --text-main: #F2F4F8;
            --text-sub: #A0AABA;
            --text-weak: #6C7690;
            --border-color: #232C40;
            --radius-card: 16px;
            --radius-btn: 8px;
            --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.35);
            --shadow-hover: 0 8px 32px rgba(232, 86, 42, 0.18);
            --success: #2EB67D;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
            background: var(--bg-deep);
            color: var(--text-main);
            line-height: 1.75;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.3s ease;
        }
        img {
            max-width: 100%;
            display: block;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            background: none;
            color: inherit;
        }
        button {
            cursor: pointer;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }
        .section-block {
            padding: 100px 0;
        }
        .section-block-sm {
            padding: 72px 0;
        }
        .section-title {
            font-size: 36px;
            font-weight: 700;
            line-height: 1.3;
            letter-spacing: 0.01em;
            text-align: center;
            margin-bottom: 16px;
        }
        .section-subtitle {
            font-size: 17px;
            color: var(--text-sub);
            text-align: center;
            max-width: 640px;
            margin: 0 auto 56px;
            line-height: 1.8;
        }
        /* Header */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(11, 15, 26, 0.92);
            backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--border-color);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 800;
            letter-spacing: 0.02em;
            color: var(--text-main);
            white-space: nowrap;
        }
        .logo-icon {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: linear-gradient(135deg, #E8562A 0%, #F5B700 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #0B0F1A;
            font-size: 18px;
            box-shadow: 0 0 18px rgba(232, 86, 42, 0.35);
            flex-shrink: 0;
        }
        .logo-text span {
            color: var(--accent);
        }
        .desktop-nav {
            display: flex;
            align-items: center;
            gap: 0;
            background: rgba(20, 26, 40, 0.7);
            border: 1px solid var(--border-color);
            border-radius: 999px;
            padding: 4px;
        }
        .nav-chip {
            display: inline-block;
            padding: 8px 24px;
            border-radius: 999px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-sub);
            transition: all 0.3s ease;
            line-height: 1.4;
        }
        .nav-chip:hover {
            color: var(--text-main);
            background: rgba(245, 183, 0, 0.08);
        }
        .nav-chip.active {
            background: var(--primary);
            color: #0B0F1A;
            font-weight: 600;
            box-shadow: 0 0 16px rgba(232, 86, 42, 0.4);
        }
        .header-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 24px;
            background: var(--primary);
            color: #0B0F1A;
            font-weight: 600;
            font-size: 15px;
            border-radius: 8px;
            transition: all 0.3s ease;
            box-shadow: 0 2px 12px rgba(232, 86, 42, 0.25);
            white-space: nowrap;
        }
        .header-cta:hover {
            transform: translateY(-2px);
            background: #F05A30;
            box-shadow: 0 6px 24px rgba(232, 86, 42, 0.35);
        }
        .header-cta:active {
            transform: translateY(0);
        }
        .mobile-toggle {
            display: none;
            width: 42px;
            height: 42px;
            border: 1px solid var(--border-color);
            border-radius: 10px;
            background: var(--bg-card);
            color: var(--text-main);
            font-size: 18px;
            align-items: center;
            justify-content: center;
        }
        .mobile-nav {
            display: none;
            background: var(--bg-card);
            border-bottom: 1px solid var(--border-color);
            padding: 16px 20px;
            flex-direction: column;
            gap: 6px;
        }
        .mobile-nav a {
            padding: 12px 16px;
            border-radius: 10px;
            font-size: 16px;
            color: var(--text-sub);
            background: transparent;
            transition: all 0.3s ease;
        }
        .mobile-nav a:hover,
        .mobile-nav a.active {
            background: rgba(232, 86, 42, 0.15);
            color: var(--text-main);
        }
        /* Buttons */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 14px 32px;
            background: var(--primary);
            color: #0B0F1A;
            font-weight: 600;
            font-size: 16px;
            border-radius: 8px;
            transition: all 0.3s ease;
            box-shadow: 0 4px 16px rgba(232, 86, 42, 0.3);
            border: 1px solid transparent;
        }
        .btn-primary:hover {
            background: #F05A30;
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(232, 86, 42, 0.4);
        }
        .btn-primary:active {
            transform: translateY(0);
        }
        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 14px 32px;
            background: transparent;
            color: var(--text-main);
            font-weight: 500;
            font-size: 16px;
            border-radius: 8px;
            border: 1px solid var(--accent);
            transition: all 0.3s ease;
        }
        .btn-secondary:hover {
            background: rgba(245, 183, 0, 0.08);
            color: var(--accent);
            transform: translateY(-2px);
        }
        .btn-secondary:active {
            transform: translateY(0);
        }
        .btn:focus-visible,
        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }
        /* Hero */
        .hero {
            position: relative;
            min-height: 620px;
            display: flex;
            align-items: center;
            background: linear-gradient(to bottom, rgba(7, 10, 18, 0.2) 0%, var(--bg-deep) 100%), url('/assets/images/backpic/back-1.png') center / cover no-repeat;
            padding: 80px 0 60px;
            overflow: hidden;
        }
        .hero::before {
            content: '';
            position: absolute;
            top: -100px;
            right: -100px;
            width: 420px;
            height: 420px;
            background: radial-gradient(circle, rgba(232, 86, 42, 0.25) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .hero::after {
            content: '';
            position: absolute;
            bottom: -80px;
            left: 30%;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(245, 183, 0, 0.12) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .hero-grid {
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 48px;
            align-items: center;
            position: relative;
            z-index: 2;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 16px;
            background: rgba(245, 183, 0, 0.1);
            border: 1px solid rgba(245, 183, 0, 0.3);
            color: var(--accent);
            font-size: 13px;
            font-weight: 500;
            border-radius: 999px;
            margin-bottom: 20px;
        }
        .hero h1 {
            font-size: 48px;
            font-weight: 800;
            line-height: 1.25;
            margin-bottom: 20px;
            letter-spacing: 0.01em;
        }
        .hero h1 .accent {
            color: var(--accent);
        }
        .hero-subtitle {
            font-size: 18px;
            color: var(--text-sub);
            line-height: 1.8;
            margin-bottom: 32px;
            max-width: 520px;
        }
        .hero-ctas {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
        }
        .hero-visual {
            position: relative;
            text-align: center;
        }
        .hero-visual::before {
            content: '';
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 320px;
            height: 320px;
            background: radial-gradient(circle, rgba(245, 183, 0, 0.2) 0%, transparent 70%);
            border-radius: 50%;
            z-index: 0;
        }
        .hero-visual img {
            position: relative;
            z-index: 1;
            border-radius: 16px;
            border: 1px solid rgba(245, 183, 0, 0.25);
            box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
            object-fit: cover;
            width: 100%;
            max-height: 420px;
        }
        .hero-stat-chip {
            position: absolute;
            bottom: 20px;
            left: 20px;
            z-index: 2;
            background: rgba(11, 15, 26, 0.88);
            border: 1px solid rgba(245, 183, 0, 0.35);
            border-radius: 12px;
            padding: 12px 18px;
            backdrop-filter: blur(8px);
        }
        .hero-stat-chip .num {
            font-size: 28px;
            font-weight: 800;
            color: var(--accent);
            line-height: 1;
        }
        .hero-stat-chip .label {
            font-size: 13px;
            color: var(--text-sub);
            margin-top: 4px;
        }
        /* Trust stats */
        .stats-bar {
            background: var(--bg-card);
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            padding: 40px 0;
        }
        .stat-item {
            text-align: center;
            padding: 20px 16px;
            border-radius: 12px;
            transition: background 0.3s;
        }
        .stat-item:hover {
            background: rgba(255, 255, 255, 0.03);
        }
        .stat-num {
            font-size: 40px;
            font-weight: 800;
            color: var(--accent);
            line-height: 1.2;
            font-family: "JetBrains Mono", monospace;
        }
        .stat-label {
            font-size: 15px;
            color: var(--text-sub);
            margin-top: 8px;
            font-weight: 500;
        }
        /* Steps */
        .steps-wrap {
            position: relative;
        }
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
        }
        .step-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            padding: 40px 32px;
            position: relative;
            transition: all 0.3s ease;
            overflow: hidden;
        }
        .step-card:hover {
            border-color: var(--primary);
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .step-number {
            font-size: 56px;
            font-weight: 800;
            color: rgba(242, 244, 248, 0.1);
            line-height: 1;
            font-family: "JetBrains Mono", monospace;
            margin-bottom: 20px;
        }
        .step-card h3 {
            font-size: 22px;
            font-weight: 600;
            margin-bottom: 12px;
        }
        .step-card p {
            font-size: 15px;
            color: var(--text-sub);
            line-height: 1.7;
        }
        .step-arrow {
            position: absolute;
            top: 50%;
            right: -28px;
            transform: translateY(-50%);
            width: 32px;
            height: 32px;
            color: var(--accent);
            font-size: 18px;
            z-index: 2;
            display: flex;
            align-items: center;
            justify-content: center;
            background: var(--bg-deep);
            border: 1px solid var(--border-color);
            border-radius: 50%;
        }
        .step-arrow:last-of-type {
            display: none;
        }
        /* Cases */
        .cases-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .case-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-card);
            overflow: hidden;
            transition: all 0.3s ease;
        }
        .case-card:hover {
            border-color: var(--primary);
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .case-thumb {
            position: relative;
            aspect-ratio: 16/9;
            background: var(--bg-dark);
            overflow: hidden;
        }
        .case-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }
        .case-card:hover .case-thumb img {
            transform: scale(1.03);
        }
        .case-badge {
            position: absolute;
            top: 12px;
            left: 12px;
            padding: 4px 12px;
            background: rgba(11, 15, 26, 0.85);
            border: 1px solid rgba(245, 183, 0, 0.4);
            border-radius: 999px;
            font-size: 12px;
            color: var(--accent);
            font-weight: 500;
            backdrop-filter: blur(6px);
        }
        .case-body {
            padding: 24px;
        }
        .case-body h3 {
            font-size: 20px;
            font-weight: 600;
            margin-bottom: 8px;
        }
        .case-data {
            display: flex;
            align-items: baseline;
            gap: 6px;
            margin-bottom: 12px;
        }
        .case-data .num {
            font-size: 32px;
            font-weight: 800;
            color: var(--accent);
            line-height: 1.1;
            font-family: "JetBrains Mono", monospace;
        }
        .case-data .unit {
            font-size: 15px;
            color: var(--text-sub);
        }
        .case-tags {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
        }
        .chip-tag {
            padding: 4px 14px;
            border-radius: 999px;
            font-size: 12px;
            font-weight: 500;
            color: var(--text-sub);
            border: 1px solid var(--border-color);
            background: rgba(255, 255, 255, 0.02);
            transition: all 0.3s;
        }
        .chip-tag:hover {
            border-color: rgba(245, 183, 0, 0.4);
            color: var(--accent);
        }
        /* FAQ */
        .faq-wrap {
            max-width: 720px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            margin-bottom: 12px;
            overflow: hidden;
            transition: border-color 0.3s ease;
        }
        .faq-item.active {
            border-color: rgba(232, 86, 42, 0.5);
        }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 20px 24px;
            font-size: 17px;
            font-weight: 600;
            color: var(--text-main);
            background: transparent;
            text-align: left;
            transition: color 0.3s;
            gap: 16px;
        }
        .faq-question:hover {
            color: var(--accent);
        }
        .faq-icon {
            width: 24px;
            height: 24px;
            flex-shrink: 0;
            color: var(--accent);
            transition: transform 0.3s ease;
        }
        .faq-item.active .faq-icon {
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 24px;
            color: var(--text-sub);
            font-size: 15px;
            line-height: 1.8;
        }
        .faq-item.active .faq-answer {
            max-height: 500px;
            padding: 0 24px 20px;
        }
        /* News CMS */
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .news-item {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            transition: all 0.3s ease;
            overflow: hidden;
        }
        .news-item:hover {
            background: rgba(255, 255, 255, 0.03);
            border-color: rgba(232, 86, 42, 0.5);
            transform: translateY(-2px);
        }
        .news-link {
            display: flex;
            align-items: center;
            gap: 20px;
            padding: 20px 24px;
            color: inherit;
        }
        .news-thumb {
            width: 96px;
            height: 72px;
            border-radius: 8px;
            background: var(--bg-dark);
            overflow: hidden;
            flex-shrink: 0;
        }
        .news-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .news-info {
            flex: 1;
            min-width: 0;
        }
        .news-title {
            font-size: 17px;
            font-weight: 600;
            line-height: 1.4;
            margin-bottom: 6px;
            color: var(--text-main);
            transition: color 0.3s;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }
        .news-item:hover .news-title {
            color: var(--accent);
        }
        .news-summary {
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.6;
            overflow: hidden;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            margin-bottom: 8px;
        }
        .news-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
        }
        .news-cat {
            padding: 2px 12px;
            border-radius: 999px;
            font-size: 12px;
            font-weight: 500;
            color: var(--accent);
            border: 1px solid rgba(245, 183, 0, 0.3);
            background: rgba(245, 183, 0, 0.05);
        }
        .news-time {
            font-size: 13px;
            color: var(--text-weak);
        }
        .news-arrow {
            width: 36px;
            height: 36px;
            flex-shrink: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-weak);
            border: 1px solid var(--border-color);
            border-radius: 50%;
            transition: all 0.3s ease;
        }
        .news-item:hover .news-arrow {
            color: var(--primary);
            border-color: var(--primary);
            transform: translateX(2px);
        }
        .news-empty {
            text-align: center;
            padding: 48px 24px;
            background: var(--bg-card);
            border: 1px dashed var(--border-color);
            border-radius: 12px;
            color: var(--text-sub);
            font-size: 15px;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 12px;
        }
        .news-empty i {
            font-size: 32px;
            color: var(--text-weak);
        }
        /* CTA */
        .cta-banner {
            position: relative;
            background: var(--bg-card);
            border-radius: 20px;
            overflow: hidden;
            padding: 64px 48px;
            text-align: center;
            border: 1px solid var(--border-color);
        }
        .cta-banner::before {
            content: '';
            position: absolute;
            top: -120px;
            right: -120px;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(232, 86, 42, 0.3) 0%, transparent 70%);
            border-radius: 50%;
        }
        .cta-banner::after {
            content: '';
            position: absolute;
            bottom: -80px;
            left: -80px;
            width: 220px;
            height: 220px;
            background: radial-gradient(circle, rgba(245, 183, 0, 0.12) 0%, transparent 70%);
            border-radius: 50%;
        }
        .cta-banner h2 {
            font-size: 36px;
            font-weight: 800;
            margin-bottom: 16px;
            position: relative;
            z-index: 1;
        }
        .cta-banner p {
            font-size: 16px;
            color: var(--text-sub);
            max-width: 560px;
            margin: 0 auto 32px;
            position: relative;
            z-index: 1;
        }
        .cta-form {
            position: relative;
            z-index: 1;
            display: flex;
            gap: 12px;
            justify-content: center;
            flex-wrap: wrap;
            max-width: 640px;
            margin: 0 auto;
        }
        .cta-input {
            flex: 1;
            min-width: 180px;
            padding: 13px 18px;
            background: var(--bg-deep);
            border: 1px solid var(--border-color);
            border-radius: 8px;
            color: var(--text-main);
            font-size: 15px;
            transition: all 0.3s ease;
        }
        .cta-input::placeholder {
            color: var(--text-weak);
        }
        .cta-input:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(232, 86, 42, 0.15);
        }
        .cta-feedback {
            position: relative;
            z-index: 1;
            margin-top: 16px;
            color: var(--success);
            font-size: 15px;
        }
        /* Footer */
        .site-footer {
            background: var(--bg-dark);
            border-top: 1px solid var(--border-color);
            padding: 72px 0 32px;
            margin-top: 100px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
            gap: 48px;
            margin-bottom: 48px;
        }
        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 800;
            margin-bottom: 16px;
            color: var(--text-main);
        }
        .footer-brand .logo-icon {
            width: 34px;
            height: 34px;
            font-size: 16px;
            border-radius: 8px;
        }
        .footer-desc {
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.8;
            margin-bottom: 16px;
        }
        .footer-title {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 20px;
        }
        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer-links a {
            font-size: 15px;
            color: var(--text-sub);
            transition: all 0.3s;
        }
        .footer-links a:hover {
            color: var(--accent);
        }
        .footer-contact {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .footer-contact-item {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: var(--text-sub);
        }
        .footer-contact-item i {
            color: var(--accent);
            width: 16px;
            text-align: center;
        }
        .footer-bottom {
            border-top: 1px solid #1A2132;
            padding-top: 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 13px;
            color: var(--text-weak);
        }
        /* Responsive */
        @media (max-width: 1023px) {
            .desktop-nav {
                display: none;
            }
            .mobile-toggle {
                display: inline-flex;
            }
            .mobile-nav.open {
                display: flex;
            }
            .hero {
                min-height: auto;
                padding: 60px 0;
            }
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 32px;
                text-align: center;
            }
            .hero-subtitle {
                margin-left: auto;
                margin-right: auto;
            }
            .hero-ctas {
                justify-content: center;
            }
            .hero-visual img {
                max-height: 340px;
                margin: 0 auto;
            }
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .step-arrow {
                display: none;
            }
            .cases-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 767px) {
            .section-block {
                padding: 64px 0;
            }
            .section-block-sm {
                padding: 48px 0;
            }
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .header-inner {
                height: 64px;
            }
            .logo {
                font-size: 18px;
            }
            .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 14px;
            }
            .header-cta {
                padding: 8px 16px;
                font-size: 14px;
            }
            .hero h1 {
                font-size: 32px;
            }
            .hero-subtitle {
                font-size: 16px;
            }
            .hero-stat-chip {
                bottom: 10px;
                left: 10px;
                padding: 8px 14px;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
                padding: 28px 0;
            }
            .stat-num {
                font-size: 32px;
            }
            .steps-grid {
                grid-template-columns: 1fr;
            }
            .cases-grid {
                grid-template-columns: 1fr;
            }
            .section-title {
                font-size: 28px;
            }
            .cta-banner {
                padding: 40px 24px;
                border-radius: 16px;
            }
            .cta-banner h2 {
                font-size: 28px;
            }
            .cta-form {
                flex-direction: column;
            }
            .cta-input {
                width: 100%;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .news-link {
                flex-direction: column;
                align-items: flex-start;
                gap: 12px;
                padding: 16px;
            }
            .news-thumb {
                width: 100%;
                height: 120px;
            }
            .news-arrow {
                display: none;
            }
            .btn-primary,
            .btn-secondary {
                width: 100%;
                padding: 12px 24px;
            }
        }
        @media (max-width: 420px) {
            .hero h1 {
                font-size: 28px;
            }
            .hero-ctas {
                flex-direction: column;
                width: 100%;
            }
            .stats-grid {
                grid-template-columns: 1fr;
            }
            .stat-num {
                font-size: 36px;
            }
        }
        /* Print */
        @media print {
            .site-header,
            .site-footer,
            .cta-banner {
                display: none;
            }
            body {
                background: #fff;
                color: #222;
            }
        }

/* roulang page: article */
:root {
            --primary: #E8562A;
            --accent: #F5B700;
            --bg: #0B0F1A;
            --card: #141A28;
            --darker: #070A12;
            --text: #F2F4F8;
            --text-secondary: #A0AABA;
            --text-muted: #6C7690;
            --border: #232C40;
            --success: #2EB67D;
            --radius-lg: 16px;
            --radius-md: 10px;
            --radius-sm: 8px;
            --shadow: 0 4px 20px rgba(0, 0, 0, 0.35);
            --shadow-hover: 0 8px 32px rgba(232, 86, 42, 0.18);
            --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
            --font-mono: "JetBrains Mono", monospace;
        }

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

        html {
            scroll-behavior: smooth;
        }

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

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

        a {
            color: inherit;
            text-decoration: none;
            transition: color .25s ease;
        }

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

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

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

        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 100;
            background: rgba(11, 15, 26, 0.88);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid rgba(35, 44, 64, 0.7);
            transition: box-shadow .3s ease;
        }

        .site-header.scrolled {
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.45);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 24px;
        }

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

        .logo-icon {
            width: 38px;
            height: 38px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(135deg, var(--primary), #FF7A3D);
            border-radius: 10px;
            color: #fff;
            font-size: 18px;
            box-shadow: 0 0 18px rgba(232, 86, 42, 0.45);
        }

        .logo-text {
            font-size: 22px;
            font-weight: 800;
            letter-spacing: 0.5px;
            color: var(--text);
            line-height: 1.2;
        }

        .logo-text span {
            color: var(--accent);
            font-size: 16px;
            font-weight: 700;
            margin-left: 4px;
        }

        .desktop-nav {
            display: flex;
            align-items: center;
            gap: 6px;
            background: rgba(20, 26, 40, 0.85);
            border: 1px solid var(--border);
            border-radius: 999px;
            padding: 4px;
        }

        .nav-chip {
            display: inline-flex;
            align-items: center;
            padding: 8px 20px;
            border-radius: 999px;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-secondary);
            white-space: nowrap;
            transition: all .25s ease;
        }

        .nav-chip:hover {
            color: var(--text);
            background: rgba(255, 255, 255, 0.05);
        }

        .nav-chip.active {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 4px 18px rgba(232, 86, 42, 0.35);
        }

        .nav-chip:focus-visible,
        button:focus-visible,
        a:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

        .header-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: linear-gradient(135deg, var(--primary), #FF6A2B);
            color: #fff;
            font-weight: 600;
            font-size: 15px;
            padding: 10px 22px;
            border-radius: 999px;
            box-shadow: 0 4px 20px rgba(232, 86, 42, 0.3);
            transition: transform .25s ease, box-shadow .25s ease;
            white-space: nowrap;
        }

        .header-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 30px rgba(232, 86, 42, 0.45);
        }

        .mobile-toggle {
            display: none;
            background: transparent;
            border: 1px solid var(--border);
            width: 42px;
            height: 42px;
            border-radius: 10px;
            color: var(--text);
            font-size: 18px;
            align-items: center;
            justify-content: center;
            transition: all .25s ease;
        }

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

        .mobile-nav {
            display: none;
            flex-direction: column;
            max-height: 0;
            overflow: hidden;
            background: var(--darker);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
            transition: max-height .35s ease;
        }

        .mobile-nav.open {
            max-height: 360px;
        }

        .mobile-nav a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 14px 24px;
            font-size: 16px;
            font-weight: 500;
            color: var(--text-secondary);
            border-bottom: 1px solid rgba(35, 44, 64, 0.5);
        }

        .mobile-nav a:last-child {
            border-bottom: none;
        }

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

        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: linear-gradient(135deg, var(--primary), #FF6A2B);
            color: #fff;
            font-weight: 600;
            font-size: 16px;
            padding: 12px 28px;
            border-radius: 10px;
            border: none;
            box-shadow: 0 4px 22px rgba(232, 86, 42, 0.3);
            transition: all .25s ease;
            cursor: pointer;
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 32px rgba(232, 86, 42, 0.45);
        }

        .btn-primary:active {
            transform: translateY(0px) scale(0.98);
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: transparent;
            color: var(--text);
            font-weight: 600;
            font-size: 16px;
            padding: 11px 26px;
            border-radius: 10px;
            border: 1px solid var(--accent);
            transition: all .25s ease;
            cursor: pointer;
        }

        .btn-secondary:hover {
            background: rgba(245, 183, 0, 0.1);
            border-color: var(--accent);
            transform: translateY(-2px);
        }

        .btn-secondary:active {
            transform: translateY(0px) scale(0.98);
        }

        .article-hero {
            background-size: cover;
            background-position: center;
            padding: 130px 0 40px;
            border-bottom: 1px solid var(--border);
            position: relative;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 20px;
        }

        .breadcrumb a {
            color: var(--text-muted);
            transition: color .2s ease;
        }

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

        .breadcrumb .sep {
            margin: 0 8px;
            opacity: 0.6;
        }

        .breadcrumb .current {
            color: var(--text-secondary);
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
            max-width: 280px;
        }

        .article-hero h1 {
            font-size: clamp(30px, 4vw, 46px);
            font-weight: 800;
            line-height: 1.3;
            margin: 10px 0 18px;
            color: var(--text);
            letter-spacing: 0.5px;
        }

        .article-meta {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 16px;
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 18px;
        }

        .article-meta span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .article-meta .category-chip {
            background: rgba(245, 183, 0, 0.12);
            border: 1px solid rgba(245, 183, 0, 0.35);
            color: var(--accent);
            padding: 3px 12px;
            border-radius: 999px;
            font-weight: 600;
            font-size: 13px;
        }

        .article-summary {
            font-size: 17px;
            line-height: 1.8;
            color: var(--text-secondary);
            max-width: 780px;
            background: rgba(20, 26, 40, 0.6);
            border-left: 3px solid var(--primary);
            padding: 14px 20px;
            border-radius: 0 10px 10px 0;
        }

        .article-body-wrap {
            padding: 50px 0 60px;
        }

        .article-body {
            max-width: 760px;
            margin: 0 auto;
            font-size: 17px;
            line-height: 1.9;
            color: #D8DEE9;
        }

        .article-body h2 {
            font-size: 28px;
            font-weight: 700;
            color: var(--text);
            margin: 44px 0 16px;
            padding-bottom: 8px;
            border-bottom: 1px solid var(--border);
        }

        .article-body h3 {
            font-size: 22px;
            font-weight: 600;
            color: var(--text);
            margin: 34px 0 12px;
        }

        .article-body h4 {
            font-size: 18px;
            font-weight: 600;
            color: var(--text);
            margin: 26px 0 8px;
        }

        .article-body p {
            margin: 0 0 22px;
        }

        .article-body ul,
        .article-body ol {
            margin: 0 0 22px;
            padding-left: 26px;
        }

        .article-body li {
            margin-bottom: 8px;
        }

        .article-body blockquote {
            border-left: 4px solid var(--primary);
            background: rgba(232, 86, 42, 0.07);
            padding: 16px 22px;
            margin: 28px 0;
            border-radius: 0 10px 10px 0;
            color: var(--text-secondary);
            font-style: italic;
        }

        .article-body a {
            color: var(--accent);
            text-decoration: underline;
            text-underline-offset: 3px;
        }

        .article-body img {
            border-radius: 12px;
            border: 1px solid var(--border);
            margin: 28px 0;
            box-shadow: var(--shadow);
        }

        .article-body code {
            background: rgba(245, 183, 0, 0.1);
            color: var(--accent);
            padding: 2px 8px;
            border-radius: 4px;
            font-family: var(--font-mono);
            font-size: 0.9em;
        }

        .article-body pre {
            background: var(--darker);
            border: 1px solid var(--border);
            border-radius: 10px;
            padding: 18px 22px;
            overflow-x: auto;
            margin: 24px 0;
            color: #D8DEE9;
            font-family: var(--font-mono);
            font-size: 14px;
            line-height: 1.7;
        }

        .article-footnav {
            max-width: 760px;
            margin: 50px auto 0;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 14px;
            flex-wrap: wrap;
            padding-top: 30px;
            border-top: 1px solid var(--border);
        }

        .not-found {
            text-align: center;
            padding: 60px 20px;
            max-width: 520px;
            margin: 0 auto;
        }

        .not-found-icon {
            width: 80px;
            height: 80px;
            margin: 0 auto 24px;
            background: rgba(20, 26, 40, 0.8);
            border: 1px solid var(--border);
            border-radius: 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 32px;
            color: var(--text-muted);
        }

        .not-found h2 {
            font-size: 28px;
            font-weight: 700;
            margin-bottom: 12px;
        }

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

        .related-section {
            background: rgba(11, 15, 26, 0.6);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }

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

        .section-heading .section-tag {
            display: inline-block;
            background: rgba(245, 183, 0, 0.14);
            border: 1px solid rgba(245, 183, 0, 0.35);
            color: var(--accent);
            font-size: 13px;
            font-weight: 700;
            padding: 4px 16px;
            border-radius: 999px;
            margin-bottom: 12px;
            letter-spacing: 1px;
        }

        .section-heading h2 {
            font-size: clamp(28px, 3vw, 36px);
            font-weight: 800;
            color: var(--text);
            margin-bottom: 10px;
        }

        .section-heading p {
            color: var(--text-muted);
            font-size: 16px;
        }

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

        .related-card {
            display: flex;
            flex-direction: column;
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: transform .3s ease, border-color .3s ease, box-shadow .3s ease;
        }

        .related-card:hover {
            transform: translateY(-4px);
            border-color: rgba(232, 86, 42, 0.6);
            box-shadow: var(--shadow-hover);
        }

        .related-thumb {
            position: relative;
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background: var(--darker);
        }

        .related-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .4s ease;
        }

        .related-card:hover .related-thumb img {
            transform: scale(1.04);
        }

        .card-badge {
            position: absolute;
            top: 12px;
            left: 12px;
            background: rgba(7, 10, 18, 0.8);
            border: 1px solid var(--accent);
            color: var(--accent);
            font-size: 12px;
            font-weight: 600;
            padding: 3px 12px;
            border-radius: 999px;
            backdrop-filter: blur(6px);
            -webkit-backdrop-filter: blur(6px);
        }

        .related-body {
            padding: 20px 22px 22px;
        }

        .related-body h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 8px;
        }

        .related-body p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 14px;
        }

        .related-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            transition: gap .25s ease;
        }

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

        .cta-section {
            position: relative;
            padding: 80px 0;
            background: linear-gradient(rgba(7, 10, 18, 0.92), rgba(11, 15, 26, 0.94)), url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            overflow: hidden;
        }

        .cta-banner {
            position: relative;
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: 20px;
            padding: 56px 40px;
            text-align: center;
            overflow: hidden;
            box-shadow: var(--shadow);
        }

        .cta-glow {
            position: absolute;
            top: -40%;
            right: -10%;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(232, 86, 42, 0.25), transparent 70%);
            pointer-events: none;
        }

        .cta-banner h2 {
            font-size: clamp(28px, 4vw, 38px);
            font-weight: 800;
            color: var(--text);
            margin-bottom: 12px;
            position: relative;
        }

        .cta-banner p {
            color: var(--text-secondary);
            font-size: 16px;
            margin-bottom: 30px;
            position: relative;
        }

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

        .site-footer {
            background: var(--darker);
            border-top: 1px solid #1A2132;
            padding: 64px 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 44px;
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 800;
            color: var(--text);
            margin-bottom: 14px;
        }

        .footer-desc {
            color: var(--text-muted);
            font-size: 14px;
            line-height: 1.8;
            margin-top: 12px;
        }

        .footer-title {
            font-size: 16px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 18px;
        }

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

        .footer-links a {
            color: var(--text-secondary);
            font-size: 14px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: color .2s ease, transform .2s ease;
        }

        .footer-links a:hover {
            color: var(--accent);
            transform: translateX(3px);
        }

        .footer-contact {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .footer-contact-item {
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--text-muted);
            font-size: 14px;
        }

        .footer-contact-item i {
            color: var(--accent);
        }

        .footer-bottom {
            border-top: 1px solid #1A2132;
            padding: 20px 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 10px;
            color: var(--text-muted);
            font-size: 13px;
        }

        @media (max-width: 1023px) {
            .desktop-nav {
                display: none;
            }
            .mobile-toggle {
                display: inline-flex;
            }
            .mobile-nav {
                display: flex;
            }
            .header-cta {
                display: none;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .related-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 767px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .header-inner {
                height: 64px;
            }
            .logo-text {
                font-size: 19px;
            }
            .article-hero {
                padding: 105px 0 30px;
            }
            .article-hero h1 {
                font-size: 28px;
            }
            .article-summary {
                font-size: 15px;
            }
            .article-body {
                font-size: 16px;
            }
            .article-body h2 {
                font-size: 24px;
            }
            .related-grid {
                grid-template-columns: 1fr;
            }
            .cta-banner {
                padding: 40px 20px;
            }
            .cta-buttons {
                flex-direction: column;
            }
            .cta-buttons .btn-primary,
            .cta-buttons .btn-secondary {
                width: 100%;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .article-footnav {
                flex-direction: column;
                width: 100%;
            }
            .article-footnav .btn-secondary {
                width: 100%;
            }
        }

        @media (max-width: 520px) {
            .breadcrumb .current {
                max-width: 180px;
            }
            .article-meta {
                gap: 10px;
            }
            .related-body {
                padding: 16px 18px 18px;
            }
        }

/* roulang page: category1 */
:root {
    --primary: #E8562A;
    --primary-dark: #C73E1D;
    --accent: #F5B700;
    --bg: #0B0F1A;
    --card: #141A28;
    --deeper: #070A12;
    --text: #F2F4F8;
    --text-sub: #A0AABA;
    --text-weak: #6C7690;
    --border: #232C40;
    --radius-lg: 16px;
    --radius-sm: 10px;
    --radius-btn: 8px;
    --shadow: 0 4px 20px rgba(0,0,0,0.35);
    --shadow-hover: 0 8px 32px rgba(232,86,42,0.18);
    --container: 1200px;
    --font: "PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
    --font-mono: "JetBrains Mono",monospace;
  }

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

  html {
    scroll-behavior: smooth;
  }

  body {
    font-family: var(--font);
    background: var(--bg);
    color: var(--text);
    line-height: 1.7;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
  }

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

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

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

  input {
    font-family: inherit;
  }

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

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

  .container-narrow {
    max-width: 860px;
  }

  /* ===== Header / Nav ===== */
  .site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(11,15,26,0.88);
    backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--border);
  }

  .header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
    gap: 24px;
  }

  .logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 800;
    flex-shrink: 0;
  }

  .logo-icon {
    width: 38px;
    height: 38px;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    display: flex;
    align-items: center;
    justify-content: center;
    color: #0B0F1A;
    font-size: 18px;
    box-shadow: 0 0 18px rgba(232,86,42,0.4);
  }

  .logo-text {
    font-size: 20px;
    letter-spacing: 0.5px;
    color: var(--text);
    white-space: nowrap;
  }

  .logo-text span {
    color: var(--accent);
  }

  .desktop-nav {
    display: flex;
    align-items: center;
    gap: 6px;
    background: rgba(20,26,40,0.9);
    border: 1px solid var(--border);
    border-radius: 999px;
    padding: 4px;
  }

  .nav-chip {
    padding: 8px 20px;
    border-radius: 999px;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-sub);
    transition: all 0.3s;
    white-space: nowrap;
  }

  .nav-chip:hover {
    color: var(--text);
  }

  .nav-chip.active {
    background: rgba(232,86,42,0.14);
    color: var(--text);
    border: 1px solid var(--primary);
    box-shadow: 0 0 12px rgba(232,86,42,0.25);
  }

  .header-cta {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--primary);
    color: #0B0F1A;
    font-weight: 600;
    font-size: 14px;
    padding: 10px 20px;
    border-radius: var(--radius-btn);
    transition: all 0.3s;
    box-shadow: 0 4px 18px rgba(232,86,42,0.35);
    flex-shrink: 0;
  }

  .header-cta:hover {
    background: #f0643a;
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(232,86,42,0.45);
  }

  .mobile-toggle {
    display: none;
    font-size: 22px;
    color: var(--text);
  }

  .mobile-nav {
    display: none;
  }

  /* ===== Buttons ===== */
  .btn-primary,
  .btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    border-radius: var(--radius-btn);
    font-size: 15px;
    font-weight: 600;
    transition: all 0.3s;
  }

  .btn-primary {
    background: var(--primary);
    color: #0B0F1A;
    box-shadow: 0 4px 18px rgba(232,86,42,0.35);
  }

  .btn-primary:hover {
    background: #f0643a;
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(232,86,42,0.45);
  }

  .btn-secondary {
    background: transparent;
    color: var(--text);
    border: 1px solid var(--accent);
  }

  .btn-secondary:hover {
    background: rgba(245,183,0,0.1);
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(245,183,0,0.15);
  }

  /* ===== Hero ===== */
  .hero {
    position: relative;
    min-height: 580px;
    background-image: url('/assets/images/backpic/back-2.webp');
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    overflow: hidden;
  }

  .hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, rgba(11,15,26,0.95) 0%, rgba(11,15,26,0.82) 55%, rgba(11,15,26,0.55) 100%);
  }

  .hero::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 160px;
    background: linear-gradient(180deg, transparent, var(--bg));
  }

  .hero-inner {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 56px;
    align-items: center;
    padding-top: 64px;
    padding-bottom: 64px;
  }

  .hero-tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 16px;
    border-radius: 999px;
    border: 1px solid rgba(245,183,0,0.4);
    background: rgba(245,183,0,0.08);
    color: var(--accent);
    font-size: 13px;
    font-weight: 500;
    margin-bottom: 20px;
  }

  .hero-title {
    font-size: 54px;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 20px;
  }

  .hero-title span {
    color: var(--accent);
  }

  .hero-sub {
    font-size: 19px;
    color: var(--text-sub);
    max-width: 460px;
    margin-bottom: 28px;
  }

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

  .hero-art {
    position: relative;
    display: flex;
    justify-content: center;
  }

  .hero-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 320px;
    height: 320px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(232,86,42,0.4), transparent 60%);
    filter: blur(40px);
  }

  .hero-img {
    position: relative;
    width: 100%;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
    aspect-ratio: 4/3;
    object-fit: cover;
  }

  /* ===== Stat Bar ===== */
  .stat-bar {
    background: var(--card);
    border-bottom: 1px solid var(--border);
    padding: 28px 0;
  }

  .stat-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
  }

  .stat-item {
    text-align: center;
  }

  .stat-number {
    font-family: var(--font-mono);
    font-size: 38px;
    font-weight: 800;
    color: var(--accent);
    line-height: 1.2;
  }

  .stat-label {
    font-size: 14px;
    color: var(--text-sub);
    margin-top: 6px;
  }

  /* ===== Section ===== */
  .section {
    padding: 96px 0;
  }

  .section-header {
    text-align: center;
    max-width: 640px;
    margin: 0 auto 48px;
  }

  .section-tag {
    display: inline-block;
    padding: 4px 14px;
    border-radius: 999px;
    border: 1px solid rgba(232,86,42,0.4);
    background: rgba(232,86,42,0.08);
    color: var(--primary);
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 16px;
  }

  .section-header h2 {
    font-size: 34px;
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: 12px;
  }

  .section-header p {
    font-size: 16px;
    color: var(--text-sub);
  }

  /* ===== Match Cards ===== */
  .match-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
  }

  .match-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all 0.3s ease;
  }

  .match-card:hover {
    transform: translateY(-4px);
    border-color: rgba(232,86,42,0.5);
    box-shadow: var(--shadow-hover);
  }

  .match-img {
    position: relative;
    aspect-ratio: 16/9;
    overflow: hidden;
  }

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

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

  .match-badge {
    position: absolute;
    top: 12px;
    left: 12px;
    background: rgba(11,15,26,0.8);
    border: 1px solid var(--accent);
    color: var(--accent);
    font-size: 12px;
    padding: 3px 10px;
    border-radius: 999px;
    backdrop-filter: blur(4px);
  }

  .match-info {
    padding: 20px;
  }

  .match-info h3 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 10px;
  }

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

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

  .match-tags {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
  }

  .chip {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 12px;
    border-radius: 999px;
    border: 1px solid var(--border);
    background: rgba(255,255,255,0.03);
    font-size: 13px;
    color: var(--text-sub);
  }

  .chip.hot {
    color: var(--accent);
    border-color: rgba(245,183,0,0.4);
    background: rgba(245,183,0,0.06);
  }

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

  .feature-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 32px;
    transition: all 0.3s ease;
  }

  .feature-card:hover {
    border-color: rgba(232,86,42,0.5);
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
  }

  .feature-icon {
    width: 52px;
    height: 52px;
    border-radius: 12px;
    background: rgba(232,86,42,0.12);
    border: 1px solid rgba(232,86,42,0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    color: var(--primary);
    margin-bottom: 20px;
  }

  .feature-card h3 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 10px;
  }

  .feature-card p {
    font-size: 15px;
    color: var(--text-sub);
  }

  /* ===== Steps ===== */
  .steps {
    display: grid;
    grid-template-columns: 1fr 80px 1fr 80px 1fr;
    align-items: start;
    gap: 0;
  }

  .step-item {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 32px;
    text-align: center;
    transition: all 0.3s ease;
  }

  .step-item:hover {
    border-color: rgba(245,183,0,0.4);
    box-shadow: var(--shadow-hover);
    transform: translateY(-4px);
  }

  .step-num {
    font-family: var(--font-mono);
    font-size: 56px;
    font-weight: 800;
    color: rgba(255,255,255,0.12);
    display: block;
    line-height: 1;
    margin-bottom: 16px;
  }

  .step-item h3 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 10px;
  }

  .step-item p {
    font-size: 15px;
    color: var(--text-sub);
  }

  .step-line {
    height: 2px;
    border-top: 2px dashed rgba(245,183,0,0.4);
    margin-top: 90px;
  }

  /* ===== Rank ===== */
  .rank-panel {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 32px;
    display: flex;
    flex-direction: column;
    gap: 20px;
  }

  .rank-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 12px 16px;
    background: rgba(255,255,255,0.02);
    border: 1px solid transparent;
    border-radius: 12px;
    transition: all 0.3s;
  }

  .rank-item:hover {
    border-color: rgba(232,86,42,0.3);
    background: rgba(232,86,42,0.04);
  }

  .rank-index {
    font-family: var(--font-mono);
    font-size: 20px;
    font-weight: 800;
    color: var(--accent);
    width: 40px;
    text-align: center;
  }

  .rank-name {
    min-width: 200px;
    font-weight: 600;
    font-size: 15px;
  }

  .rank-bar {
    flex: 1;
    height: 8px;
    background: rgba(255,255,255,0.06);
    border-radius: 999px;
    overflow: hidden;
  }

  .rank-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    border-radius: 999px;
    display: block;
  }

  .rank-score {
    font-family: var(--font-mono);
    font-size: 18px;
    font-weight: 700;
    color: var(--text);
    min-width: 40px;
    text-align: right;
  }

  /* ===== FAQ ===== */
  .faq-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
    max-width: 720px;
    margin: 0 auto;
  }

  .faq-item {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 12px;
    overflow: hidden;
    transition: border-color 0.3s;
  }

  .faq-item.open {
    border-color: rgba(232,86,42,0.4);
  }

  .faq-question {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 24px;
    font-size: 16px;
    font-weight: 600;
    color: var(--text);
    text-align: left;
    transition: background 0.3s;
  }

  .faq-question i {
    color: var(--accent);
    transition: transform 0.3s;
    font-size: 14px;
    flex-shrink: 0;
    margin-left: 12px;
  }

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

  .faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s ease;
    padding: 0 24px;
    color: var(--text-sub);
    font-size: 15px;
    line-height: 1.8;
  }

  .faq-item.open .faq-answer {
    max-height: 500px;
    padding-bottom: 20px;
  }

  /* ===== CTA ===== */
  .section-cta {
    padding-top: 24px;
  }

  .cta-inner {
    background:
      radial-gradient(ellipse at 20% 100%, rgba(232,86,42,0.28), transparent 55%),
      radial-gradient(ellipse at 80% 0%, rgba(245,183,0,0.14), transparent 45%),
      var(--card);
    border: 1px solid var(--border);
    border-radius: 24px;
    padding: 64px 48px;
    text-align: center;
    position: relative;
    overflow: hidden;
  }

  .cta-inner h2 {
    font-size: 36px;
    font-weight: 800;
    margin-bottom: 14px;
  }

  .cta-inner > p {
    font-size: 16px;
    color: var(--text-sub);
    margin-bottom: 28px;
  }

  .cta-form {
    display: flex;
    gap: 12px;
    justify-content: center;
    flex-wrap: wrap;
    max-width: 640px;
    margin: 0 auto 20px;
  }

  .cta-input {
    flex: 1;
    min-width: 180px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-btn);
    padding: 12px 16px;
    color: var(--text);
    font-size: 15px;
    transition: border-color 0.3s, box-shadow 0.3s;
  }

  .cta-input::placeholder {
    color: var(--text-weak);
  }

  .cta-input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(232,86,42,0.2);
  }

  .cta-link-note {
    font-size: 13px;
    color: var(--text-weak);
    margin-bottom: 24px;
  }

  .cta-links {
    display: flex;
    gap: 12px;
    justify-content: center;
    flex-wrap: wrap;
  }

  /* ===== Footer ===== */
  .site-footer {
    background: var(--deeper);
    border-top: 1px solid var(--border);
    padding-top: 64px;
    margin-top: 24px;
  }

  .footer-grid {
    display: grid;
    grid-template-columns: 1.4fr 0.8fr 0.8fr 1.2fr;
    gap: 40px;
    padding-bottom: 48px;
  }

  .footer-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 20px;
    font-weight: 800;
    margin-bottom: 16px;
  }

  .footer-desc {
    font-size: 14px;
    color: var(--text-sub);
    line-height: 1.8;
    max-width: 280px;
  }

  .footer-title {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 16px;
  }

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

  .footer-links a {
    font-size: 14px;
    color: var(--text-sub);
    transition: color 0.3s, padding-left 0.3s;
  }

  .footer-links a i {
    color: var(--primary);
    margin-right: 4px;
    font-size: 12px;
    transition: margin-left 0.3s;
  }

  .footer-links a:hover {
    color: var(--text);
    padding-left: 4px;
  }

  .footer-links a:hover i {
    margin-left: 4px;
  }

  .footer-contact {
    display: flex;
    flex-direction: column;
    gap: 12px;
  }

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

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

  .footer-bottom {
    border-top: 1px solid rgba(26,33,50,1);
    padding: 20px 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 13px;
    color: var(--text-weak);
    gap: 12px;
    flex-wrap: wrap;
  }

  /* ===== Responsive ===== */
  @media (max-width: 1023px) {
    .desktop-nav,
    .header-cta {
      display: none;
    }

    .mobile-toggle {
      display: block;
    }

    .mobile-nav {
      display: none;
    }

    .mobile-nav.open {
      display: flex;
      flex-direction: column;
      padding: 16px 24px 24px;
      gap: 4px;
      background: var(--card);
      border-bottom: 1px solid var(--border);
    }

    .mobile-nav a {
      display: flex;
      align-items: center;
      gap: 10px;
      padding: 12px 14px;
      border-radius: 10px;
      color: var(--text-sub);
      font-size: 15px;
    }

    .mobile-nav a:hover {
      background: rgba(255,255,255,0.04);
      color: var(--text);
    }

    .mobile-nav a.active {
      background: rgba(232,86,42,0.1);
      color: var(--text);
      border: 1px solid rgba(232,86,42,0.3);
    }

    .hero-title {
      font-size: 42px;
    }

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

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

    .step-line {
      display: none;
    }

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

    .section {
      padding: 72px 0;
    }
  }

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

    .hero {
      min-height: 480px;
    }

    .hero-inner {
      grid-template-columns: 1fr;
      gap: 32px;
      padding: 48px 0;
    }

    .hero-art {
      display: none;
    }

    .hero-title {
      font-size: 36px;
    }

    .hero-sub {
      font-size: 16px;
    }

    .stat-grid {
      grid-template-columns: repeat(2, 1fr);
      gap: 20px;
    }

    .stat-number {
      font-size: 30px;
    }

    .section {
      padding: 64px 0 40px;
    }

    .section-header h2 {
      font-size: 26px;
    }

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

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

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

    .rank-panel {
      padding: 20px;
    }

    .rank-item {
      flex-wrap: wrap;
      gap: 10px;
    }

    .rank-name {
      min-width: 120px;
    }

    .rank-bar {
      order: 3;
      flex-basis: 100%;
    }

    .cta-inner {
      padding: 40px 20px;
    }

    .cta-inner h2 {
      font-size: 28px;
    }

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

    .cta-input {
      min-width: 0;
    }

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

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

    .btn-primary,
    .btn-secondary {
      width: 100%;
    }

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

/* roulang page: category2 */
:root {
            --fire: #E8562A;
            --ambre: #F5B700;
            --night: #0B0F1A;
            --steel: #141A28;
            --ink: #070A12;
            --line: #232C40;
            --txt: #F2F4F8;
            --sub: #A0AABA;
            --mute: #6C7690;
            --radius-lg: 16px;
            --radius-md: 10px;
            --radius-sm: 8px;
            --shadow: 0 4px 20px rgba(0, 0, 0, 0.35);
            --shadow-hover: 0 8px 32px rgba(232, 86, 42, 0.18);
            --transition: 0.3s ease;
        }

        * {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            background-color: var(--night);
            color: var(--txt);
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
            line-height: 1.7;
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
        }

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

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

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

        input {
            font-family: inherit;
        }

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

        .section-padding {
            padding: 100px 0;
        }

        .section-title {
            font-size: 34px;
            font-weight: 800;
            line-height: 1.25;
            margin-bottom: 16px;
            letter-spacing: -0.5px;
        }

        .section-sub {
            color: var(--sub);
            font-size: 16px;
            max-width: 640px;
            margin-bottom: 48px;
            line-height: 1.8;
        }

        .section-head-center {
            text-align: center;
        }

        .section-head-center .section-sub {
            margin-left: auto;
            margin-right: auto;
        }

        /* Header */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(11, 15, 26, 0.85);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--line);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 40px;
        }

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

        .logo-icon {
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--fire), #ff8a3d);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            box-shadow: 0 0 20px rgba(232, 86, 42, 0.35);
        }

        .logo-text {
            font-size: 22px;
            font-weight: 800;
            letter-spacing: 0.5px;
            color: var(--txt);
            white-space: nowrap;
        }

        .logo-text span {
            color: var(--ambre);
            margin-left: 2px;
        }

        .desktop-nav {
            display: flex;
            align-items: center;
            gap: 6px;
            background: rgba(20, 26, 40, 0.6);
            border: 1px solid var(--line);
            border-radius: 999px;
            padding: 4px;
            margin: 0 auto;
        }

        .nav-chip {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 22px;
            border-radius: 999px;
            font-size: 14px;
            font-weight: 500;
            color: var(--sub);
            transition: all 0.3s ease;
            line-height: 1;
            white-space: nowrap;
        }

        .nav-chip:hover {
            color: var(--txt);
            background: rgba(255, 255, 255, 0.05);
        }

        .nav-chip.active {
            background: var(--fire);
            color: #fff;
            font-weight: 600;
            box-shadow: 0 0 20px rgba(232, 86, 42, 0.3);
        }

        .header-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--ambre);
            color: #1a1500;
            font-weight: 700;
            font-size: 14px;
            padding: 10px 22px;
            border-radius: 8px;
            transition: all 0.3s ease;
            border: none;
            flex-shrink: 0;
        }

        .header-cta:hover {
            background: #ffce2e;
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(245, 183, 0, 0.25);
        }

        .mobile-toggle {
            display: none;
            background: transparent;
            border: 1px solid var(--line);
            color: var(--txt);
            width: 42px;
            height: 42px;
            border-radius: 8px;
            font-size: 18px;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }

        .mobile-nav {
            display: none;
            flex-direction: column;
            gap: 8px;
            padding: 16px 24px 24px;
            background: var(--steel);
            border-top: 1px solid var(--line);
        }

        .mobile-nav a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 12px 16px;
            border-radius: 10px;
            color: var(--sub);
            font-size: 15px;
            font-weight: 500;
            transition: all 0.3s ease;
        }

        .mobile-nav a.active {
            background: rgba(232, 86, 42, 0.15);
            color: var(--txt);
            border-left: 3px solid var(--fire);
        }

        .mobile-nav a:hover {
            background: rgba(255, 255, 255, 0.05);
            color: var(--txt);
        }

        /* Hero */
        .category-hero {
            position: relative;
            padding: 90px 0 100px;
            background: linear-gradient(180deg, rgba(11, 15, 26, 0.2) 0%, var(--night) 100%);
            overflow: hidden;
        }

        .category-hero-bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center 30%;
            opacity: 0.35;
            z-index: 0;
        }

        .category-hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 75% 40%, rgba(232, 86, 42, 0.12) 0%, transparent 60%);
            z-index: 1;
            pointer-events: none;
        }

        .category-hero .container {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 64px;
            align-items: center;
        }

        .category-hero .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(245, 183, 0, 0.12);
            border: 1px solid rgba(245, 183, 0, 0.3);
            color: var(--ambre);
            font-size: 13px;
            font-weight: 600;
            padding: 6px 14px;
            border-radius: 999px;
            margin-bottom: 24px;
            letter-spacing: 0.3px;
        }

        .category-hero h1 {
            font-size: 52px;
            font-weight: 800;
            line-height: 1.15;
            margin: 0 0 20px;
            letter-spacing: -1px;
        }

        .category-hero h1 .highlight {
            color: var(--ambre);
        }

        .category-hero .hero-desc {
            font-size: 18px;
            color: var(--sub);
            line-height: 1.8;
            margin-bottom: 32px;
            max-width: 520px;
        }

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

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--fire);
            color: #fff;
            font-weight: 600;
            font-size: 15px;
            padding: 14px 32px;
            border-radius: 8px;
            border: none;
            transition: all 0.3s ease;
            box-shadow: 0 4px 20px rgba(232, 86, 42, 0.3);
        }

        .btn-primary:hover {
            background: #fc6a3d;
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(232, 86, 42, 0.35);
        }

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

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            border: 1px solid var(--ambre);
            color: var(--ambre);
            font-weight: 600;
            font-size: 15px;
            padding: 14px 32px;
            border-radius: 8px;
            transition: all 0.3s ease;
        }

        .btn-secondary:hover {
            background: rgba(245, 183, 0, 0.08);
            transform: translateY(-2px);
            box-shadow: 0 4px 16px rgba(245, 183, 0, 0.15);
        }

        .category-hero-visual {
            position: relative;
        }

        .category-hero-visual::before {
            content: '';
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 320px;
            height: 320px;
            background: radial-gradient(circle, rgba(232, 86, 42, 0.25) 0%, transparent 70%);
            border-radius: 50%;
            z-index: 0;
        }

        .category-hero-visual img {
            position: relative;
            z-index: 1;
            border-radius: 16px;
            border: 1px solid var(--line);
            box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
            object-fit: cover;
            aspect-ratio: 4 / 3;
            width: 100%;
        }

        .hero-float-card {
            position: absolute;
            z-index: 2;
            background: rgba(20, 26, 40, 0.92);
            border: 1px solid var(--line);
            border-radius: 12px;
            padding: 12px 16px;
            display: flex;
            align-items: center;
            gap: 10px;
            box-shadow: var(--shadow);
            backdrop-filter: blur(8px);
        }

        .hero-float-card .float-icon {
            width: 36px;
            height: 36px;
            border-radius: 8px;
            background: rgba(245, 183, 0, 0.15);
            color: var(--ambre);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
        }

        .hero-float-card .float-num {
            font-size: 18px;
            font-weight: 800;
            color: var(--txt);
            line-height: 1.1;
            font-family: "JetBrains Mono", monospace;
        }

        .hero-float-card .float-label {
            font-size: 12px;
            color: var(--sub);
            line-height: 1.2;
        }

        .hero-float-card.float-1 {
            top: 24px;
            right: -16px;
        }

        .hero-float-card.float-2 {
            bottom: 40px;
            left: -24px;
        }

        /* Trust Bar */
        .trust-bar {
            background: var(--ink);
            border-top: 1px solid var(--line);
            border-bottom: 1px solid var(--line);
            padding: 32px 0;
        }

        .trust-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            text-align: center;
        }

        .trust-item .num {
            font-size: 38px;
            font-weight: 800;
            color: var(--ambre);
            font-family: "JetBrains Mono", monospace;
            line-height: 1.2;
        }

        .trust-item .label {
            font-size: 14px;
            color: var(--sub);
            margin-top: 4px;
        }

        /* Feature Cards */
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .feature-card {
            background: var(--steel);
            border: 1px solid var(--line);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            transition: all 0.3s ease;
        }

        .feature-card:hover {
            transform: translateY(-6px);
            border-color: rgba(232, 86, 42, 0.6);
            box-shadow: var(--shadow-hover);
        }

        .feature-icon {
            width: 52px;
            height: 52px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            background: rgba(232, 86, 42, 0.12);
            color: var(--fire);
            margin-bottom: 22px;
        }

        .feature-card h3 {
            font-size: 18px;
            font-weight: 700;
            margin: 0 0 10px;
            color: var(--txt);
        }

        .feature-card p {
            font-size: 14px;
            color: var(--sub);
            line-height: 1.7;
            margin: 0;
        }

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

        .scenario-card {
            background: var(--steel);
            border: 1px solid var(--line);
            border-radius: var(--radius-lg);
            padding: 36px 32px;
            position: relative;
            overflow: hidden;
            transition: all 0.3s ease;
        }

        .scenario-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 3px;
            background: linear-gradient(90deg, var(--fire), var(--ambre));
            opacity: 0;
            transition: opacity 0.3s ease;
        }

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

        .scenario-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }

        .scenario-icon {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: rgba(245, 183, 0, 0.1);
            color: var(--ambre);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            margin-bottom: 20px;
        }

        .scenario-card h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 12px;
        }

        .scenario-card p {
            font-size: 14px;
            color: var(--sub);
            line-height: 1.8;
            margin: 0;
        }

        /* Process / Path */
        .process-section {
            background: var(--ink);
            border-top: 1px solid var(--line);
            border-bottom: 1px solid var(--line);
        }

        .process-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 0;
            position: relative;
        }

        .process-step {
            padding: 40px 24px;
            position: relative;
        }

        .process-step .number {
            font-size: 56px;
            font-weight: 800;
            color: rgba(160, 170, 186, 0.2);
            line-height: 1;
            font-family: "JetBrains Mono", monospace;
            margin-bottom: 16px;
        }

        .process-step h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .process-step p {
            font-size: 14px;
            color: var(--sub);
            line-height: 1.7;
            margin: 0;
        }

        .process-step:not(:last-child)::after {
            content: '';
            position: absolute;
            top: 60px;
            right: -2px;
            width: 24px;
            border-top: 2px dashed var(--line);
        }

        /* Guide Topics */
        .topic-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .topic-card {
            background: var(--steel);
            border: 1px solid var(--line);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all 0.3s ease;
        }

        .topic-card:hover {
            transform: translateY(-6px);
            border-color: rgba(232, 86, 42, 0.5);
            box-shadow: var(--shadow-hover);
        }

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

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

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

        .topic-cover::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 60%, rgba(11, 15, 26, 0.7));
        }

        .topic-tag {
            position: absolute;
            top: 16px;
            left: 16px;
            z-index: 2;
            background: rgba(245, 183, 0, 0.15);
            border: 1px solid rgba(245, 183, 0, 0.3);
            color: var(--ambre);
            border-radius: 999px;
            padding: 4px 12px;
            font-size: 12px;
            font-weight: 600;
            backdrop-filter: blur(6px);
        }

        .topic-body {
            padding: 24px;
        }

        .topic-body h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .topic-body p {
            font-size: 14px;
            color: var(--sub);
            line-height: 1.7;
            margin-bottom: 16px;
        }

        .topic-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            border-top: 1px solid var(--line);
            padding-top: 16px;
        }

        .topic-meta .meta-label {
            font-size: 13px;
            color: var(--mute);
        }

        .topic-meta .arrow-link {
            color: var(--fire);
            font-size: 14px;
            transition: transform 0.3s ease;
        }

        .topic-card:hover .arrow-link {
            transform: translateX(4px);
        }

        /* FAQ */
        .faq-list {
            max-width: 720px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--steel);
            border: 1px solid var(--line);
            border-radius: 12px;
            margin-bottom: 14px;
            overflow: hidden;
            transition: border-color 0.3s ease;
        }

        .faq-item.active {
            border-color: rgba(232, 86, 42, 0.4);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 22px 24px;
            font-size: 16px;
            font-weight: 600;
            color: var(--txt);
            cursor: pointer;
            user-select: none;
            transition: color 0.3s ease;
        }

        .faq-question i {
            color: var(--ambre);
            transition: transform 0.3s ease;
            font-size: 16px;
            flex-shrink: 0;
            margin-left: 16px;
        }

        .faq-item.active .faq-question i {
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding: 0 24px;
        }

        .faq-answer p {
            font-size: 15px;
            color: var(--sub);
            line-height: 1.8;
            padding-bottom: 22px;
            margin: 0;
        }

        /* CTA */
        .cta-section {
            position: relative;
            padding: 100px 0;
            background: var(--steel);
            border-top: 1px solid var(--line);
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 700px;
            height: 400px;
            background: radial-gradient(ellipse, rgba(232, 86, 42, 0.12) 0%, transparent 70%);
            pointer-events: none;
        }

        .cta-inner {
            position: relative;
            text-align: center;
            max-width: 700px;
            margin: 0 auto;
        }

        .cta-inner h2 {
            font-size: 40px;
            font-weight: 800;
            margin-bottom: 16px;
            line-height: 1.2;
        }

        .cta-inner h2 span {
            color: var(--ambre);
        }

        .cta-inner p {
            font-size: 17px;
            color: var(--sub);
            margin-bottom: 36px;
        }

        /* Footer */
        .site-footer {
            background: var(--ink);
            border-top: 1px solid var(--line);
            padding: 60px 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 0.8fr 0.8fr 1fr;
            gap: 48px;
            padding-bottom: 40px;
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 800;
            margin-bottom: 16px;
        }

        .footer-desc {
            font-size: 14px;
            color: var(--sub);
            line-height: 1.8;
            margin: 0;
        }

        .footer-title {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 18px;
            color: var(--txt);
        }

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

        .footer-links a {
            font-size: 14px;
            color: var(--sub);
            transition: all 0.3s ease;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .footer-links a:hover {
            color: var(--ambre);
            padding-left: 4px;
        }

        .footer-contact {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

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

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

        .footer-bottom {
            border-top: 1px solid #1a2132;
            padding: 20px 0;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 13px;
            color: var(--mute);
            flex-wrap: wrap;
            gap: 8px;
        }

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

        /* Responsive */
        @media (max-width: 1024px) {
            .hero-float-card.float-1 {
                right: 0;
            }
            .hero-float-card.float-2 {
                left: 0;
            }
        }

        @media (max-width: 900px) {
            .desktop-nav {
                display: none;
            }
            .mobile-toggle {
                display: inline-flex;
            }
            .mobile-nav.open {
                display: flex;
            }
            .header-cta {
                display: none;
            }
            .category-hero .container {
                grid-template-columns: 1fr;
                gap: 48px;
                text-align: center;
            }
            .hero-desc {
                margin: 0 auto 32px;
            }
            .hero-actions {
                justify-content: center;
            }
            .category-hero-visual {
                max-width: 480px;
                margin: 0 auto;
            }
            .hero-float-card.float-1 {
                right: -8px;
                top: 12px;
            }
            .hero-float-card.float-2 {
                left: -8px;
                bottom: 20px;
            }
            .feature-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .scenario-grid {
                grid-template-columns: 1fr;
                max-width: 480px;
                margin: 0 auto;
            }
            .process-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 32px 24px;
            }
            .process-step:not(:last-child)::after {
                display: none;
            }
            .topic-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .trust-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 32px 16px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 40px;
            }
        }

        @media (max-width: 767px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .section-padding {
                padding: 64px 0;
            }
            .section-title {
                font-size: 28px;
            }
            .section-sub {
                font-size: 15px;
                margin-bottom: 32px;
            }
            .category-hero {
                padding: 56px 0 64px;
            }
            .category-hero h1 {
                font-size: 34px;
            }
            .category-hero .hero-desc {
                font-size: 16px;
            }
            .hero-actions {
                flex-direction: column;
                align-items: center;
            }
            .btn-primary,
            .btn-secondary {
                width: 100%;
                justify-content: center;
            }
            .feature-grid {
                grid-template-columns: 1fr;
            }
            .scenario-grid {
                grid-template-columns: 1fr;
            }
            .process-grid {
                grid-template-columns: 1fr;
                gap: 32px 0;
            }
            .process-step {
                padding: 0;
            }
            .topic-grid {
                grid-template-columns: 1fr;
            }
            .trust-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px 16px;
            }
            .trust-item .num {
                font-size: 30px;
            }
            .cta-inner h2 {
                font-size: 30px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .footer-bottom {
                justify-content: center;
                text-align: center;
            }
            .faq-question {
                font-size: 15px;
                padding: 18px 18px;
            }
            .faq-answer p {
                font-size: 14px;
            }
        }

        @media (max-width: 480px) {
            .logo-text {
                font-size: 19px;
            }
            .logo-icon {
                width: 34px;
                height: 34px;
            }
            .hero-float-card {
                display: none;
            }
            .trust-item .num {
                font-size: 26px;
            }
        }