/* roulang page: index */
:root {
            --brand-600: #1E6FD9;
            --brand-700: #174FA8;
            --brand-100: #E8F1FC;
            --accent-500: #D9A441;
            --accent-600: #C28F2A;
            --bg: #F6F8FB;
            --surface: #FFFFFF;
            --text-900: #17233D;
            --text-600: #4E5D73;
            --text-400: #8A97A8;
            --border: #E3E9F0;
            --success: #1F9D72;
            --danger: #D64545;
            --radius: 16px;
            --radius-sm: 10px;
            --shadow-sm: 0 2px 8px rgba(23, 35, 61, 0.06);
            --shadow-md: 0 8px 24px rgba(23, 35, 61, 0.08);
            --shadow-lg: 0 12px 28px rgba(23, 35, 61, 0.10);
            --container: 1200px;
            --space-section: 88px;
            --font-main: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans CJK SC', sans-serif;
        }

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

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

        body {
            font-family: var(--font-main);
            font-size: 16px;
            line-height: 1.75;
            letter-spacing: 0.5px;
            color: var(--text-900);
            background: var(--bg);
            overflow-x: hidden;
        }

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

        a {
            color: var(--brand-600);
            text-decoration: none;
            transition: color .2s ease, border-color .2s ease;
        }

        a:hover {
            color: var(--brand-700);
            text-decoration: underline;
        }

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

        button:focus-visible,
        input:focus-visible,
        a:focus-visible {
            outline: 2px solid var(--brand-600);
            outline-offset: 2px;
        }

        ul,
        ol {
            list-style: none;
        }

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

        .section {
            padding: var(--space-section) 0;
        }

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

        .section-head {
            max-width: 760px;
            margin-bottom: 48px;
        }

        .section-head h2 {
            font-size: 30px;
            line-height: 1.4;
            color: var(--text-900);
            font-weight: 700;
            letter-spacing: 1px;
            margin-bottom: 14px;
        }

        .section-head p {
            font-size: 16px;
            color: var(--text-600);
            line-height: 1.7;
            max-width: 560px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-size: 16px;
            font-weight: 600;
            border-radius: var(--radius-sm);
            padding: 14px 32px;
            cursor: pointer;
            transition: all .2s ease;
            white-space: nowrap;
            border: 1px solid transparent;
        }

        .btn-primary {
            background: var(--brand-600);
            color: #fff;
        }

        .btn-primary:hover {
            background: var(--brand-700);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 10px 22px rgba(30, 111, 217, 0.30);
            text-decoration: none;
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(30, 111, 217, 0.20);
        }

        .btn-secondary {
            background: var(--surface);
            color: var(--brand-600);
            border-color: var(--brand-600);
        }

        .btn-secondary:hover {
            background: var(--brand-100);
            color: var(--brand-700);
            transform: translateY(-1px);
            text-decoration: none;
        }

        .btn-accent {
            background: var(--accent-500);
            color: var(--text-900);
            border-color: var(--accent-500);
        }

        .btn-accent:hover {
            background: var(--accent-600);
            color: #fff;
            transform: translateY(-1px);
            text-decoration: none;
            box-shadow: 0 8px 20px rgba(217, 164, 65, 0.40);
        }

        .btn-outline {
            background: transparent;
            color: var(--brand-600);
            border-color: var(--brand-600);
        }

        .btn-outline:hover {
            background: var(--brand-100);
            color: var(--brand-700);
            text-decoration: none;
        }

        .btn-block {
            width: 100%;
        }

        .btn-sm {
            padding: 10px 20px;
            font-size: 14px;
        }

        .badge {
            display: inline-block;
            background: var(--brand-100);
            color: var(--brand-700);
            font-size: 13px;
            font-weight: 600;
            line-height: 1;
            padding: 6px 14px;
            border-radius: 999px;
        }

        .badge-accent {
            display: inline-block;
            background: var(--accent-500);
            color: var(--text-900);
            font-size: 13px;
            font-weight: 700;
            line-height: 1;
            padding: 6px 14px;
            border-radius: 999px;
        }

        /* Header */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: var(--surface);
            box-shadow: none;
            transition: box-shadow .25s ease;
        }

        .site-header.scrolled {
            box-shadow: 0 2px 12px rgba(23, 35, 61, 0.08);
        }

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

        .logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            color: var(--text-900);
            text-decoration: none;
            font-size: 20px;
            font-weight: 700;
            letter-spacing: 1px;
        }

        .logo:hover {
            color: var(--brand-600);
            text-decoration: none;
        }

        .logo-icon {
            width: 38px;
            height: 38px;
            background: var(--brand-600);
            color: #fff;
            border-radius: 10px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 22px;
            letter-spacing: 0;
        }

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

        .main-nav .nav-link {
            padding: 8px 18px;
            border-radius: 999px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-600);
            transition: all .2s ease;
            text-decoration: none;
        }

        .main-nav .nav-link:hover {
            background: var(--brand-100);
            color: var(--brand-700);
            text-decoration: none;
        }

        .main-nav .nav-link.active {
            background: var(--brand-100);
            color: var(--brand-700);
            font-weight: 600;
            box-shadow: inset 0 0 0 1px rgba(30, 111, 217, 0.15);
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 16px;
        }

        .menu-toggle {
            display: none;
            flex-direction: column;
            justify-content: center;
            gap: 5px;
            width: 44px;
            height: 44px;
            border-radius: 10px;
            padding: 10px;
            cursor: pointer;
        }

        .menu-toggle span {
            display: block;
            width: 24px;
            height: 2px;
            background: var(--text-900);
            border-radius: 2px;
            transition: all .3s ease;
        }

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

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

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

        /* Hero */
        .hero {
            position: relative;
            padding: 100px 0;
            overflow: hidden;
        }

        .hero-bg {
            position: absolute;
            inset: 0;
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            opacity: 0.35;
        }

        .hero-overlay {
            position: absolute;
            inset: 0;
            background: rgba(255, 255, 255, 0.72);
        }

        .hero-inner {
            position: relative;
            z-index: 1;
            display: grid;
            grid-template-columns: 1fr 500px;
            gap: 64px;
            align-items: center;
        }

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

        .hero-text h1 {
            font-size: 40px;
            line-height: 1.3;
            font-weight: 700;
            letter-spacing: 1px;
            color: var(--text-900);
            margin-bottom: 20px;
        }

        .hero-subtitle {
            font-size: 18px;
            line-height: 1.6;
            color: var(--text-600);
            margin-bottom: 36px;
        }

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

        .hero-visual {
            position: relative;
        }

        .hero-visual::before {
            content: '';
            position: absolute;
            top: -24px;
            right: -20px;
            width: 130px;
            height: 130px;
            background: var(--brand-100);
            border-radius: 24px;
            z-index: -1;
        }

        .hero-visual::after {
            content: '';
            position: absolute;
            bottom: -18px;
            left: -18px;
            width: 90px;
            height: 90px;
            background: var(--brand-600);
            opacity: 0.08;
            border-radius: 50%;
            z-index: -1;
        }

        .hero-img {
            width: 100%;
            aspect-ratio: 4 / 3;
            object-fit: cover;
            border-radius: 20px;
            border: 4px solid #fff;
            box-shadow: var(--shadow-lg);
        }

        /* Stats */
        .stats-band {
            background: var(--surface);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
            padding: 40px 0;
            margin-top: -1px;
        }

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

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

        .stat-num {
            display: block;
            font-size: 36px;
            font-weight: 700;
            color: var(--brand-600);
            line-height: 1.2;
            margin-bottom: 4px;
            letter-spacing: 0;
        }

        .stat-label {
            font-size: 14px;
            color: var(--text-600);
        }

        /* Compare */
        .compare-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
            max-width: 900px;
            margin: 0 auto;
        }

        .compare-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 40px 36px;
            position: relative;
            display: flex;
            flex-direction: column;
            box-shadow: var(--shadow-sm);
            transition: box-shadow .25s ease, transform .25s ease, border-color .25s ease;
        }

        .compare-card:hover {
            box-shadow: var(--shadow-md);
        }

        .compare-card h3 {
            font-size: 22px;
            font-weight: 700;
            color: var(--text-900);
            margin-bottom: 8px;
        }

        .compare-card .price {
            font-size: 32px;
            font-weight: 700;
            color: var(--text-900);
            margin-bottom: 24px;
        }

        .compare-card .price.free {
            color: var(--text-600);
        }

        .compare-card ul {
            margin-bottom: 32px;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .compare-card li {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 15px;
            color: var(--text-900);
            padding-bottom: 12px;
            border-bottom: 1px dashed var(--border);
        }

        .compare-card li:last-child {
            border-bottom: none;
        }

        .compare-card li span {
            font-weight: 600;
            font-size: 14px;
            white-space: nowrap;
            margin-left: 16px;
        }

        .compare-card li.limited span {
            color: var(--text-400);
        }

        .compare-card li.full span {
            color: var(--success);
        }

        .compare-card.featured {
            border-color: var(--brand-600);
            box-shadow: var(--shadow-md);
        }

        .compare-card.featured .badge-accent {
            position: absolute;
            top: -14px;
            right: 24px;
            box-shadow: 0 4px 10px rgba(217, 164, 65, 0.35);
        }

        .section-cta {
            margin-top: 40px;
            text-align: center;
        }

        /* Tier */
        .tier-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            align-items: start;
        }

        .tier-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 32px 28px;
            position: relative;
            box-shadow: var(--shadow-sm);
            transition: box-shadow .25s ease, transform .25s ease, border-color .25s ease;
        }

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

        .tier-card h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text-900);
        }

        .tier-price {
            font-size: 36px;
            font-weight: 700;
            color: var(--text-900);
            margin-bottom: 24px;
            line-height: 1.2;
        }

        .tier-price span {
            font-size: 14px;
            font-weight: 400;
            color: var(--text-400);
            margin-left: 4px;
        }

        .tier-card ul {
            margin-bottom: 28px;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .tier-card li {
            position: relative;
            padding-left: 24px;
            font-size: 14px;
            color: var(--text-600);
            line-height: 1.6;
        }

        .tier-card li::before {
            content: '';
            position: absolute;
            left: 4px;
            top: 8px;
            width: 8px;
            height: 8px;
            background: var(--brand-100);
            border-radius: 50%;
            border: 2px solid var(--brand-600);
        }

        .tier-card.popular {
            transform: translateY(-12px);
            border-color: var(--brand-600);
            box-shadow: var(--shadow-lg);
        }

        .tier-card.popular:hover {
            transform: translateY(-14px);
            box-shadow: var(--shadow-lg);
        }

        .tier-card.popular .badge-accent {
            position: absolute;
            top: -14px;
            right: 24px;
            box-shadow: 0 4px 10px rgba(217, 164, 65, 0.35);
        }

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

        .preview-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: box-shadow .25s ease, transform .25s ease;
        }

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

        .preview-cover {
            position: relative;
            width: 100%;
            aspect-ratio: 16 / 10;
            overflow: hidden;
        }

        .preview-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .preview-lock {
            position: absolute;
            inset: 0;
            background: rgba(30, 111, 217, 0.45);
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 12px;
            transition: background .25s ease;
        }

        .preview-lock i {
            color: #fff;
            font-size: 30px;
            text-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
        }

        .preview-card:hover .preview-lock {
            background: rgba(30, 111, 217, 0.55);
        }

        .preview-card h3 {
            font-size: 18px;
            font-weight: 700;
            line-height: 1.5;
            color: var(--text-900);
            padding: 20px 20px 0;
            min-height: 54px;
        }

        .preview-card h3~p {
            font-size: 14px;
            color: var(--text-600);
            line-height: 1.6;
            padding: 8px 20px 24px;
            margin: 0;
        }

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

        .news-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 24px;
            display: flex;
            flex-direction: column;
            box-shadow: var(--shadow-sm);
            transition: box-shadow .25s ease, transform .25s ease;
        }

        .news-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }

        .news-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 14px;
        }

        .news-meta time {
            font-size: 13px;
            color: var(--text-400);
        }

        .news-card h3 {
            font-size: 18px;
            font-weight: 700;
            line-height: 1.5;
            color: var(--text-900);
            margin-bottom: 8px;
        }

        .news-card h3 a {
            color: var(--text-900);
            text-decoration: none;
            transition: color .2s ease;
        }

        .news-card h3 a:hover {
            color: var(--brand-600);
        }

        .news-card p {
            font-size: 14px;
            color: var(--text-600);
            line-height: 1.6;
            margin-bottom: 16px;
            -webkit-line-clamp: 2;
            display: -webkit-box;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .read-more {
            margin-top: auto;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            color: var(--brand-600);
            text-decoration: none;
        }

        .read-more:hover {
            color: var(--brand-700);
        }

        .empty-state {
            grid-column: 1 / -1;
            background: var(--surface);
            border: 1px dashed var(--border);
            border-radius: var(--radius);
            padding: 48px 24px;
            text-align: center;
            color: var(--text-400);
        }

        .empty-state i {
            font-size: 36px;
            margin-bottom: 12px;
            display: block;
            color: var(--text-400);
        }

        .empty-state p {
            font-size: 15px;
            margin: 0;
        }

        /* FAQ */
        .faq-container {
            max-width: 860px;
            margin: 0 auto;
        }

        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .faq-item {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            transition: border-color .2s ease, box-shadow .2s ease;
        }

        .faq-item:hover {
            border-color: var(--brand-100);
            box-shadow: var(--shadow-sm);
        }

        .faq-item.open {
            border-color: var(--brand-600);
            box-shadow: var(--shadow-md);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
            padding: 20px 24px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-900);
            cursor: pointer;
            text-align: left;
            gap: 16px;
            background: none;
        }

        .faq-question:hover {
            color: var(--brand-600);
        }

        .faq-icon {
            width: 24px;
            height: 24px;
            flex-shrink: 0;
            border-radius: 50%;
            background: var(--brand-100);
            color: var(--brand-700);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 16px;
            transition: transform .2s ease, background .2s ease;
        }

        .faq-icon::before {
            content: '+';
            line-height: 1;
        }

        .faq-item.open .faq-icon {
            background: var(--brand-600);
            color: #fff;
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height .25s ease, padding .25s ease;
            padding: 0 24px;
            border-top: 0 solid var(--brand-100);
        }

        .faq-item.open .faq-answer {
            max-height: 220px;
            padding: 16px 24px 20px;
            border-top: 1px solid var(--brand-100);
        }

        .faq-answer p {
            font-size: 14px;
            line-height: 1.8;
            color: var(--text-600);
            margin: 0;
        }

        /* CTA */
        .cta-banner {
            background: #FBF4E4;
            padding: 72px 0;
            position: relative;
            overflow: hidden;
        }

        .cta-banner::before,
        .cta-banner::after {
            content: '';
            position: absolute;
            width: 160px;
            height: 160px;
            border-radius: 50%;
            background: var(--accent-500);
            opacity: 0.08;
        }

        .cta-banner::before {
            top: -60px;
            left: -60px;
        }

        .cta-banner::after {
            bottom: -80px;
            right: -40px;
            width: 220px;
            height: 220px;
        }

        .cta-inner {
            position: relative;
            z-index: 1;
            text-align: center;
            max-width: 640px;
            margin: 0 auto;
        }

        .cta-inner h2 {
            font-size: 30px;
            line-height: 1.4;
            color: var(--text-900);
            margin-bottom: 12px;
            font-weight: 700;
        }

        .cta-inner p {
            font-size: 16px;
            color: var(--text-600);
            margin-bottom: 28px;
        }

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

        .form-field {
            position: relative;
            flex: 1;
            min-width: 240px;
            max-width: 360px;
        }

        .form-field input {
            width: 100%;
            height: 52px;
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            padding: 0 16px;
            background: var(--surface);
            font-size: 15px;
            color: var(--text-900);
            transition: border-color .2s ease, box-shadow .2s ease;
        }

        .form-field input::placeholder {
            color: var(--text-400);
        }

        .form-field input:focus {
            border-color: var(--brand-600);
            box-shadow: 0 0 0 3px rgba(30, 111, 217, 0.15);
        }

        .form-field input:not(:placeholder-shown):invalid {
            border-color: var(--danger);
        }

        .form-field input:not(:placeholder-shown):invalid~.field-msg {
            display: block;
        }

        .form-field input:valid {
            border-color: var(--success);
        }

        .form-field input:valid~.field-ok {
            display: inline-block;
        }

        .form-field input:valid~.field-msg {
            display: none;
        }

        .field-msg {
            display: none;
            position: absolute;
            left: 4px;
            bottom: -22px;
            font-size: 13px;
            color: var(--danger);
        }

        .field-ok {
            display: none;
            position: absolute;
            right: 12px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--success);
            font-size: 18px;
        }

        /* Footer */
        .site-footer {
            background: #EDF2F8;
            border-top: 2px solid var(--brand-600);
            padding: 64px 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
            gap: 48px;
            padding-bottom: 44px;
        }

        .footer-logo {
            font-size: 22px;
            font-weight: 700;
            color: var(--text-900);
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 16px;
        }

        .footer-logo:hover {
            color: var(--brand-600);
            text-decoration: none;
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            color: var(--text-600);
            max-width: 280px;
            margin: 0;
        }

        .footer-col h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-900);
            margin-bottom: 18px;
            letter-spacing: 0.5px;
        }

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

        .footer-col a {
            font-size: 14px;
            color: var(--text-600);
            text-decoration: none;
            transition: color .2s ease, padding-left .2s ease;
        }

        .footer-col a:hover {
            color: var(--brand-600);
            padding-left: 4px;
        }

        .footer-col li {
            font-size: 14px;
            color: var(--text-600);
            line-height: 1.6;
        }

        .footer-bottom {
            background: rgba(255, 255, 255, 0.6);
            border-top: 1px solid var(--border);
            padding: 20px 0;
        }

        .footer-bottom .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 8px;
        }

        .footer-bottom p {
            font-size: 13px;
            color: var(--text-400);
            margin: 0;
        }

        .footer-bottom .footer-domain {
            font-family: monospace;
            letter-spacing: 0.5px;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .hero-inner {
                grid-template-columns: 1fr 400px;
                gap: 40px;
            }

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

            .tier-card.popular {
                transform: translateY(0);
            }

            .tier-card.popular:hover {
                transform: translateY(-4px);
            }

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

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

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

        @media (max-width: 768px) {
            :root {
                --space-section: 56px;
            }

            .section-head h2 {
                font-size: 24px;
            }

            .hero {
                padding: 64px 0;
            }

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

            .hero-text h1 {
                font-size: 30px;
            }

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

            .hero-visual {
                max-width: 520px;
            }

            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px;
            }

            .compare-grid {
                grid-template-columns: 1fr;
                gap: 24px;
                max-width: 480px;
            }

            .tier-grid {
                grid-template-columns: 1fr;
                max-width: 400px;
            }

            .tier-card {
                padding: 28px 24px;
            }

            .tier-card.popular {
                border-color: var(--brand-600);
                box-shadow: var(--shadow-md);
            }

            .preview-grid {
                grid-template-columns: 1fr;
                max-width: 480px;
            }

            .news-grid {
                grid-template-columns: 1fr;
                max-width: 480px;
            }

            .cta-inner h2 {
                font-size: 22px;
            }

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

            .form-field {
                max-width: 100%;
                width: 100%;
            }

            .form-field .field-msg {
                bottom: auto;
                top: calc(100% + 2px);
            }

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

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

            .menu-toggle {
                display: flex;
            }

            .main-nav {
                position: fixed;
                top: 0;
                right: 0;
                width: min(320px, 82vw);
                height: 100vh;
                background: var(--surface);
                box-shadow: -8px 0 30px rgba(23, 35, 61, 0.12);
                flex-direction: column;
                align-items: flex-start;
                padding: 80px 24px 32px;
                gap: 8px;
                transform: translateX(100%);
                transition: transform .3s ease;
                z-index: 1001;
                overflow-y: auto;
            }

            .main-nav.open {
                transform: translateX(0);
            }

            .main-nav .nav-link {
                font-size: 16px;
                padding: 12px 16px;
                width: 100%;
                border-radius: 10px;
            }

            .main-nav .nav-link.active {
                background: var(--brand-100);
            }

            .header-actions .btn {
                display: none;
            }

            .header-inner {
                height: 64px;
            }

            body.nav-open::after {
                content: '';
                position: fixed;
                inset: 0;
                background: rgba(23, 35, 61, 0.4);
                z-index: 999;
            }

            .header-actions {
                flex-direction: row;
            }

            .header-actions .btn {
                display: none;
            }

            .menu-toggle {
                display: flex;
                position: relative;
                z-index: 1002;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }

            .hero {
                padding: 48px 0;
            }

            .hero-text h1 {
                font-size: 26px;
                line-height: 1.35;
            }

            .hero-subtitle {
                font-size: 15px;
                margin-bottom: 24px;
            }

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

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

            .stat-num {
                font-size: 28px;
            }

            .compare-card {
                padding: 28px 20px;
            }

            .compare-card .price {
                font-size: 26px;
            }

            .tier-price {
                font-size: 30px;
            }

            .preview-card h3 {
                font-size: 16px;
            }

            .news-card h3 {
                font-size: 16px;
            }

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

            .cta-inner h2 {
                font-size: 20px;
            }
        }

/* roulang page: category1 */
:root {
            --brand-600: #1E6FD9;
            --brand-700: #174FA8;
            --brand-100: #E8F1FC;
            --accent-500: #D9A441;
            --accent-600: #C08F30;
            --bg: #F6F8FB;
            --surface: #FFFFFF;
            --text-900: #17233D;
            --text-600: #4E5D73;
            --text-400: #8A97A8;
            --border: #E3E9F0;
            --success: #1F9D72;
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-sm: 8px;
            --shadow-sm: 0 2px 8px rgba(23,35,61,0.06);
            --shadow-lg: 0 12px 28px rgba(23,35,61,0.10);
            --font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans CJK SC', sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-family);
            font-size: 16px;
            line-height: 1.75;
            color: var(--text-900);
            background: var(--bg);
            letter-spacing: 0.5px;
            -webkit-font-smoothing: antialiased;
        }

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

        a {
            color: var(--brand-600);
            text-decoration: none;
            transition: color 0.2s ease;
        }

        a:hover {
            color: var(--brand-700);
            text-decoration: underline;
        }

        ul,
        ol {
            list-style: none;
        }

        button {
            font-family: var(--font-family);
            cursor: pointer;
        }

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

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 28px;
            border-radius: 10px;
            border: 2px solid transparent;
            font-size: 16px;
            font-weight: 600;
            line-height: 1.5;
            letter-spacing: 0.5px;
            transition: all 0.25s ease;
            text-decoration: none !important;
            min-height: 44px;
        }

        .btn-primary {
            background: var(--brand-600);
            color: #fff;
            border-color: var(--brand-600);
        }

        .btn-primary:hover {
            background: var(--brand-700);
            border-color: var(--brand-700);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 8px 20px rgba(30, 111, 217, 0.25);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 4px 12px rgba(30, 111, 217, 0.2);
        }

        .btn-secondary {
            background: var(--surface);
            color: var(--brand-600);
            border-color: var(--brand-600);
        }

        .btn-secondary:hover {
            background: var(--brand-100);
            color: var(--brand-700);
            border-color: var(--brand-700);
        }

        .btn-vip {
            background: var(--accent-500);
            color: #2D2415;
            border-color: var(--accent-500);
        }

        .btn-vip:hover {
            background: var(--accent-600);
            color: #fff;
            border-color: var(--accent-600);
            box-shadow: 0 8px 20px rgba(217, 164, 65, 0.3);
        }

        .btn:focus-visible {
            outline: 2px solid var(--brand-600);
            outline-offset: 2px;
        }

        .badge {
            display: inline-flex;
            align-items: center;
            padding: 4px 14px;
            border-radius: 999px;
            font-size: 14px;
            font-weight: 500;
            background: var(--brand-100);
            color: var(--brand-700);
            line-height: 1.4;
        }

        /* Nav */
        .site-nav {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: var(--surface);
            border-bottom: 1px solid var(--border);
            transition: box-shadow 0.3s ease;
        }

        .site-nav.scrolled {
            box-shadow: 0 2px 12px rgba(23, 35, 61, 0.08);
        }

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

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 700;
            color: var(--text-900);
            text-decoration: none !important;
            white-space: nowrap;
        }

        .logo:hover {
            color: var(--brand-600);
        }

        .logo-icon {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: var(--brand-600);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            font-weight: 700;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 8px;
            flex: 1;
            justify-content: center;
        }

        .nav-link {
            display: inline-flex;
            align-items: center;
            padding: 8px 18px;
            border-radius: 999px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-600);
            text-decoration: none !important;
            transition: all 0.2s ease;
            white-space: nowrap;
            position: relative;
        }

        .nav-link:hover {
            color: var(--brand-600);
            background: var(--brand-100);
            text-decoration: none;
        }

        .nav-link.active {
            color: var(--brand-700);
            background: var(--brand-100);
            font-weight: 600;
        }

        .nav-cta {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .nav-cta .btn {
            padding: 8px 20px;
            font-size: 14px;
            min-height: 40px;
            border-radius: 8px;
        }

        .hamburger {
            display: none;
            width: 44px;
            height: 44px;
            border: none;
            background: transparent;
            border-radius: 10px;
            align-items: center;
            justify-content: center;
            color: var(--text-900);
            transition: background 0.2s;
        }

        .hamburger:hover {
            background: var(--brand-100);
        }

        .hamburger svg {
            width: 24px;
            height: 24px;
        }

        .mobile-drawer {
            display: none;
            position: fixed;
            top: 0;
            right: -100%;
            width: 320px;
            max-width: 85vw;
            height: 100vh;
            background: var(--surface);
            z-index: 2000;
            padding: 24px;
            box-shadow: -8px 0 24px rgba(23, 35, 61, 0.12);
            flex-direction: column;
            transition: right 0.3s ease;
        }

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

        .drawer-close {
            align-self: flex-end;
            width: 44px;
            height: 44px;
            border: none;
            background: var(--bg);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-900);
            margin-bottom: 20px;
        }

        .drawer-nav {
            display: flex;
            flex-direction: column;
            gap: 4px;
            flex: 1;
        }

        .drawer-nav .nav-link {
            padding: 14px 16px;
            border-radius: 12px;
            font-size: 16px;
            width: 100%;
        }

        .drawer-nav .nav-link.active {
            background: var(--brand-100);
            color: var(--brand-700);
        }

        .drawer-cta {
            display: flex;
            flex-direction: column;
            gap: 10px;
            padding-top: 16px;
            border-top: 1px solid var(--border);
        }

        .drawer-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(23, 35, 61, 0.5);
            z-index: 1500;
            opacity: 0;
            transition: opacity 0.3s;
        }

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

        /* Hero */
        .cat-hero {
            position: relative;
            background-color: var(--brand-100);
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            padding: 96px 0 80px;
        }

        .cat-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(255, 255, 255, 0.86);
        }

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

        .cat-hero-inner {
            max-width: 720px;
        }

        .cat-hero .badge {
            background: var(--accent-500);
            color: #2D2415;
            margin-bottom: 20px;
        }

        .cat-hero h1 {
            font-size: 40px;
            line-height: 1.3;
            font-weight: 700;
            letter-spacing: 1px;
            color: var(--text-900);
            margin-bottom: 16px;
        }

        .cat-hero h1 .highlight {
            color: var(--brand-600);
        }

        .cat-hero .subtitle {
            font-size: 17px;
            line-height: 1.6;
            color: var(--text-600);
            margin-bottom: 32px;
            max-width: 560px;
        }

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

        /* Intro Section */
        .intro-section {
            padding: 96px 0;
            background: var(--surface);
        }

        .intro-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 64px;
            align-items: center;
        }

        .intro-content h2 {
            font-size: 30px;
            line-height: 1.4;
            font-weight: 700;
            letter-spacing: 1px;
            color: var(--text-900);
            margin-bottom: 20px;
        }

        .intro-content h2 .accent-word {
            color: var(--brand-600);
        }

        .intro-content p {
            color: var(--text-600);
            font-size: 16px;
            line-height: 1.8;
            margin-bottom: 16px;
        }

        .intro-list {
            margin: 24px 0 32px;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .intro-list li {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            color: var(--text-900);
            font-size: 15px;
            line-height: 1.6;
        }

        .intro-list-icon {
            flex-shrink: 0;
            width: 24px;
            height: 24px;
            border-radius: 50%;
            background: var(--brand-100);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-top: 2px;
        }

        .intro-list-icon svg {
            width: 14px;
            height: 14px;
            color: var(--brand-600);
        }

        .intro-image {
            position: relative;
        }

        .intro-image img {
            width: 100%;
            border-radius: 20px;
            border: 4px solid #fff;
            box-shadow: var(--shadow-lg);
        }

        .intro-image::before {
            content: '';
            position: absolute;
            width: 120px;
            height: 120px;
            background: var(--brand-100);
            border-radius: 20px;
            top: -24px;
            left: -24px;
            z-index: -1;
        }

        .intro-image::after {
            content: '';
            position: absolute;
            width: 80px;
            height: 80px;
            background: rgba(217, 164, 65, 0.2);
            border-radius: 16px;
            bottom: -20px;
            right: -20px;
            z-index: -1;
        }

        /* Resource Links Section */
        .resources-section {
            padding: 96px 0;
            background: var(--bg);
        }

        .section-label {
            display: inline-block;
            font-size: 14px;
            font-weight: 600;
            letter-spacing: 1px;
            text-transform: uppercase;
            color: var(--brand-600);
            margin-bottom: 10px;
        }

        .section-title {
            font-size: 30px;
            line-height: 1.4;
            font-weight: 700;
            letter-spacing: 1px;
            color: var(--text-900);
            margin-bottom: 16px;
        }

        .section-note {
            font-size: 16px;
            color: var(--text-600);
            margin-bottom: 48px;
            max-width: 640px;
            line-height: 1.7;
        }

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

        .resource-card {
            display: flex;
            gap: 16px;
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 28px;
            transition: box-shadow 0.25s ease, transform 0.25s ease, border-color 0.25s ease;
            align-items: flex-start;
        }

        .resource-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
            border-color: var(--brand-600);
        }

        .resource-icon {
            flex-shrink: 0;
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: var(--brand-100);
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .resource-icon svg {
            width: 24px;
            height: 24px;
            color: var(--brand-600);
        }

        .resource-card h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-900);
            margin-bottom: 6px;
        }

        .resource-card p {
            font-size: 14px;
            line-height: 1.7;
            color: var(--text-600);
            margin-bottom: 12px;
        }

        .resource-link {
            font-size: 14px;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--brand-600);
            text-decoration: none !important;
            transition: color 0.2s;
        }

        .resource-link:hover {
            color: var(--brand-700);
        }

        .resource-link svg {
            width: 14px;
            height: 14px;
            transition: transform 0.2s;
        }

        .resource-link:hover svg {
            transform: translateX(4px);
        }

        /* Process Steps */
        .process-section {
            padding: 96px 0;
            background: var(--surface);
        }

        .process-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            margin-top: 48px;
        }

        .process-item {
            text-align: center;
            padding: 32px 20px;
            background: var(--bg);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            transition: border-color 0.25s, box-shadow 0.25s;
            position: relative;
        }

        .process-item:hover {
            border-color: var(--brand-600);
            box-shadow: var(--shadow-sm);
        }

        .process-num {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--brand-600);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            font-weight: 700;
            margin: 0 auto 16px;
        }

        .process-item h3 {
            font-size: 17px;
            font-weight: 600;
            color: var(--text-900);
            margin-bottom: 8px;
        }

        .process-item p {
            font-size: 14px;
            color: var(--text-600);
            line-height: 1.6;
        }

        /* CTA Section */
        .cta-section {
            padding: 80px 0;
            background: #FBF3E0;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            width: 200px;
            height: 200px;
            background: rgba(217, 164, 65, 0.12);
            border-radius: 40px;
            top: -60px;
            left: -40px;
            transform: rotate(20deg);
        }

        .cta-section::after {
            content: '';
            position: absolute;
            width: 160px;
            height: 160px;
            background: rgba(30, 111, 217, 0.08);
            border-radius: 30px;
            bottom: -40px;
            right: 20px;
            transform: rotate(-15deg);
        }

        .cta-inner {
            position: relative;
            z-index: 1;
            text-align: center;
            max-width: 680px;
            margin: 0 auto;
        }

        .cta-inner h2 {
            font-size: 30px;
            font-weight: 700;
            color: var(--text-900);
            margin-bottom: 12px;
            letter-spacing: 1px;
        }

        .cta-inner p {
            font-size: 16px;
            color: var(--text-600);
            margin-bottom: 28px;
        }

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

        /* Footer */
        .site-footer {
            background: #EDF2F8;
            border-top: 2px solid var(--brand-600);
            padding-top: 64px;
        }

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

        .footer-brand .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: var(--text-900);
            text-decoration: none !important;
            margin-bottom: 14px;
        }

        .footer-brand .footer-logo .logo-icon {
            width: 34px;
            height: 34px;
            font-size: 18px;
            border-radius: 8px;
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.7;
            color: var(--text-600);
            max-width: 280px;
        }

        .footer-brand .qr-placeholder {
            width: 110px;
            height: 110px;
            border: 1px dashed var(--border);
            border-radius: 12px;
            background: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-top: 20px;
            font-size: 13px;
            color: var(--text-400);
        }

        .footer-col h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-900);
            margin-bottom: 18px;
            letter-spacing: 0.5px;
        }

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

        .footer-col ul li {
            font-size: 14px;
            color: var(--text-600);
            line-height: 1.5;
        }

        .footer-col ul a {
            color: var(--text-600);
            text-decoration: none;
            transition: color 0.2s;
        }

        .footer-col ul a:hover {
            color: var(--brand-600);
            text-decoration: underline;
        }

        .footer-bottom {
            border-top: 1px solid #D6DFEA;
            padding: 24px 0;
        }

        .footer-bottom .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 8px;
        }

        .footer-bottom p {
            font-size: 14px;
            color: var(--text-600);
        }

        .footer-domain {
            font-size: 13px;
            color: var(--text-400);
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .process-grid {
                grid-template-columns: repeat(2, 1fr);
            }

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

            .intro-grid {
                gap: 40px;
            }
        }

        @media (max-width: 768px) {
            .nav-inner {
                height: 64px;
            }

            .main-nav,
            .nav-cta .btn {
                display: none;
            }

            .hamburger {
                display: flex;
            }

            .cat-hero {
                padding: 64px 0 56px;
            }

            .cat-hero h1 {
                font-size: 30px;
            }

            .cat-hero .subtitle {
                font-size: 15px;
            }

            .intro-section,
            .resources-section,
            .process-section {
                padding: 64px 0;
            }

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

            .intro-image {
                order: -1;
            }

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

            .section-title {
                font-size: 24px;
            }

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

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

            .cta-inner h2 {
                font-size: 24px;
            }

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

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

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

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

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

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }

            .nav-cta {
                gap: 8px;
            }

            .resource-card {
                padding: 20px;
                flex-direction: column;
            }

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

/* roulang page: article */
:root{
    --brand-600:#1E6FD9;
    --brand-700:#174FA8;
    --brand-100:#E8F1FC;
    --accent-500:#D9A441;
    --accent-600:#C0902E;
    --bg:#F6F8FB;
    --surface:#FFFFFF;
    --text-900:#17233D;
    --text-600:#4E5D73;
    --text-400:#8A97A8;
    --border:#E3E9F0;
    --success:#1F9D72;
    --radius:16px;
    --radius-sm:10px;
    --shadow-sm:0 2px 8px rgba(23,35,61,0.06);
    --shadow-md:0 12px 28px rgba(23,35,61,0.10);
    --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
    font-family:'PingFang SC','Microsoft YaHei','Noto Sans CJK SC',sans-serif;
    background:var(--bg);
    color:var(--text-900);
    line-height:1.75;
    font-size:16px;
    -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--brand-600);text-decoration:none;transition:color .2s}
a:hover{color:var(--brand-700);text-decoration:underline}
button{font-family:inherit;cursor:pointer}
ul,ol{list-style-position:inside}
.container{max-width:var(--container);margin:0 auto;padding-left:24px;padding-right:24px}

/* ===== Buttons ===== */
.btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:8px;
    padding:12px 28px;
    border-radius:12px;
    font-size:16px;
    font-weight:600;
    line-height:1.4;
    border:1px solid transparent;
    transition:all .25s;
    user-select:none;
}
.btn:focus-visible{
    outline:2px solid var(--brand-600);
    outline-offset:2px;
}
.btn-primary{
    background:var(--brand-600);
    color:#fff;
    border-color:var(--brand-600);
}
.btn-primary:hover{
    background:var(--brand-700);
    border-color:var(--brand-700);
    color:#fff;
    transform:translateY(-1px);
    box-shadow:0 8px 20px rgba(23,79,168,.22);
    text-decoration:none;
}
.btn-primary:active{
    transform:translateY(0);
    box-shadow:var(--shadow-sm);
}
.btn-accent{
    background:var(--accent-500);
    color:#3A2E12;
    border-color:var(--accent-500);
}
.btn-accent:hover{
    background:var(--accent-600);
    border-color:var(--accent-600);
    color:#3A2E12;
    transform:translateY(-1px);
    box-shadow:0 8px 20px rgba(217,164,65,.25);
    text-decoration:none;
}
.btn-accent:active{
    transform:translateY(0);
    box-shadow:var(--shadow-sm);
}
.btn-outline{
    background:var(--surface);
    color:var(--brand-600);
    border-color:var(--brand-600);
}
.btn-outline:hover{
    background:var(--brand-100);
    color:var(--brand-700);
    border-color:var(--brand-700);
    transform:translateY(-1px);
    text-decoration:none;
}
.btn-sm{padding:8px 20px;font-size:14px}

/* ===== Header ===== */
.site-header{
    position:sticky;
    top:0;
    z-index:100;
    background:var(--surface);
    border-bottom:1px solid var(--border);
    transition:box-shadow .3s;
}
.site-header.scrolled{box-shadow:0 2px 12px rgba(23,35,61,.08)}
.header-inner{
    display:flex;
    align-items:center;
    justify-content:space-between;
    height:72px;
}
.logo{
    display:flex;
    align-items:center;
    gap:8px;
    font-size:22px;
    font-weight:700;
    color:var(--text-900);
    letter-spacing:.5px;
    white-space:nowrap;
}
.logo:hover{text-decoration:none;color:var(--text-900)}
.logo-icon{
    display:flex;
    align-items:center;
    justify-content:center;
    width:36px;
    height:36px;
    background:var(--brand-600);
    color:#fff;
    border-radius:10px;
    font-weight:700;
    font-size:20px;
    flex-shrink:0;
}
.main-nav{display:flex;align-items:center;gap:6px}
.nav-link{
    padding:8px 18px;
    border-radius:999px;
    font-size:15px;
    font-weight:500;
    color:var(--text-600);
    transition:all .2s;
}
.nav-link:hover{
    color:var(--brand-600);
    background:var(--brand-100);
    text-decoration:none;
}
.nav-link.active{
    color:var(--brand-700);
    background:var(--brand-100);
    font-weight:600;
}
.header-actions{display:flex;align-items:center;gap:12px}
.nav-toggle{
    display:none;
    flex-direction:column;
    gap:5px;
    background:none;
    border:none;
    padding:8px;
    border-radius:8px;
}
.nav-toggle span{
    width:22px;
    height:2px;
    background:var(--text-900);
    border-radius:2px;
    transition:transform .25s,opacity .25s;
}
.nav-toggle:hover{background:var(--brand-100)}
.nav-toggle.active span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.active span:nth-child(2){opacity:0}
.nav-toggle.active span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ===== Breadcrumb ===== */
.breadcrumb-wrap{
    background:var(--surface);
    border-bottom:1px solid var(--border);
    padding:14px 0;
}
.breadcrumb{
    display:flex;
    align-items:center;
    gap:8px;
    font-size:14px;
    color:var(--text-400);
    list-style:none;
    flex-wrap:wrap;
}
.breadcrumb li{display:flex;align-items:center;gap:8px}
.breadcrumb li::after{content:"/";color:var(--text-400);opacity:.6}
.breadcrumb li:last-child::after{content:""}
.breadcrumb a{color:var(--text-600)}
.breadcrumb a:hover{color:var(--brand-600)}
.breadcrumb .current{
    color:var(--text-900);
    font-weight:500;
    max-width:220px;
    overflow:hidden;
    text-overflow:ellipsis;
    white-space:nowrap;
}

/* ===== Article Main ===== */
.article-main{
    padding:56px 0 64px;
}
.article-card{
    background:var(--surface);
    border-radius:var(--radius);
    box-shadow:var(--shadow-sm);
    border:1px solid var(--border);
    padding:48px 56px;
    max-width:860px;
    margin:0 auto;
}
.article-header{
    margin-bottom:32px;
    padding-bottom:24px;
    border-bottom:1px solid var(--border);
}
.article-header h1{
    font-size:32px;
    line-height:1.4;
    font-weight:700;
    color:var(--text-900);
    letter-spacing:.5px;
    margin-bottom:16px;
}
.article-meta{
    display:flex;
    align-items:center;
    flex-wrap:wrap;
    gap:18px;
    font-size:14px;
    color:var(--text-400);
}
.meta-item{
    display:inline-flex;
    align-items:center;
    gap:6px;
}
.meta-item svg{width:15px;height:15px;opacity:.7}
.meta-item a{color:var(--text-600)}
.meta-item a:hover{color:var(--brand-600)}

/* ===== Article Body ===== */
.article-body{
    font-size:16px;
    line-height:1.85;
    color:var(--text-900);
}
.article-body h2{
    font-size:24px;
    font-weight:700;
    color:var(--text-900);
    margin:36px 0 16px;
    padding-bottom:10px;
    border-bottom:1px solid var(--border);
    letter-spacing:.5px;
}
.article-body h3{
    font-size:19px;
    font-weight:600;
    color:var(--text-900);
    margin:28px 0 12px;
}
.article-body p{
    margin-bottom:24px;
    line-height:1.85;
}
.article-body ul,
.article-body ol{
    padding-left:24px;
    margin-bottom:24px;
}
.article-body li{
    margin-bottom:8px;
    line-height:1.8;
}
.article-body blockquote{
    border-left:4px solid var(--brand-600);
    background:var(--brand-100);
    padding:16px 20px;
    border-radius:0 12px 12px 0;
    margin:24px 0;
    color:var(--text-600);
}
.article-body img{
    border-radius:12px;
    margin:24px 0;
    box-shadow:var(--shadow-sm);
}
.article-body hr{
    border:none;
    border-top:1px solid var(--border);
    margin:32px 0;
}
.article-body code{
    background:#F1F4F8;
    padding:2px 8px;
    border-radius:4px;
    font-size:14px;
    font-family:Consolas,Monaco,monospace;
    color:var(--brand-700);
}
.article-body a{color:var(--brand-600);text-decoration:underline}
.article-body a:hover{color:var(--brand-700)}

/* ===== Article Footer ===== */
.article-footer{
    margin-top:40px;
    padding-top:24px;
    border-top:1px solid var(--border);
}
.article-tags{
    display:flex;
    flex-wrap:wrap;
    gap:10px;
    margin-bottom:24px;
}
.tag{
    display:inline-flex;
    align-items:center;
    padding:5px 14px;
    background:var(--brand-100);
    color:var(--brand-700);
    border-radius:999px;
    font-size:13px;
    font-weight:500;
}
.article-nav{
    display:flex;
    justify-content:space-between;
    gap:16px;
    flex-wrap:wrap;
}
.article-nav-link{
    font-size:14px;
    font-weight:500;
    color:var(--text-600);
    transition:color .2s;
    padding:6px 0;
}
.article-nav-link:hover{
    color:var(--brand-600);
    text-decoration:none;
}

/* ===== Related ===== */
.related-section{
    padding:64px 0 80px;
    background:var(--bg);
}
.section-header{
    margin-bottom:36px;
}
.section-header h2{
    font-size:28px;
    font-weight:700;
    color:var(--text-900);
    letter-spacing:.5px;
    position:relative;
    padding-left:16px;
}
.section-header h2::before{
    content:"";
    position:absolute;
    left:0;
    top:50%;
    transform:translateY(-50%);
    width:4px;
    height:22px;
    background:var(--brand-600);
    border-radius:4px;
}
.related-grid{
    display:grid;
    grid-template-columns:repeat(3,1fr);
    gap:24px;
    margin-bottom:36px;
}
.related-card{
    background:var(--surface);
    border-radius:var(--radius);
    border:1px solid var(--border);
    overflow:hidden;
    transition:transform .25s,box-shadow .25s;
    display:flex;
    flex-direction:column;
}
.related-card:hover{
    transform:translateY(-4px);
    box-shadow:var(--shadow-md);
    text-decoration:none;
}
.related-thumb{
    aspect-ratio:16/10;
    overflow:hidden;
}
.related-thumb img{
    width:100%;
    height:100%;
    object-fit:cover;
    transition:transform .4s;
}
.related-card:hover .related-thumb img{
    transform:scale(1.04);
}
.related-info{
    padding:18px 20px 20px;
}
.related-info h3{
    font-size:16px;
    font-weight:600;
    color:var(--text-900);
    line-height:1.5;
    margin-bottom:8px;
    display:-webkit-box;
    -webkit-line-clamp:2;
    line-clamp:2;
    -webkit-box-orient:vertical;
    overflow:hidden;
}
.related-card:hover .related-info h3{
    color:var(--brand-600);
}
.related-date{
    font-size:13px;
    color:var(--text-400);
}
.related-back{
    text-align:center;
    margin-top:8px;
}

/* ===== Empty State ===== */
.empty-card{
    max-width:720px;
    margin:40px auto 0;
    text-align:center;
    padding:64px 40px;
}
.empty-state .empty-icon{
    width:72px;
    height:72px;
    margin:0 auto 20px;
    background:var(--brand-100);
    color:var(--brand-700);
    border-radius:50%;
    display:flex;
    align-items:center;
    justify-content:center;
    font-size:36px;
    font-weight:600;
}
.empty-state h1{
    font-size:24px;
    color:var(--text-900);
    margin-bottom:8px;
}
.empty-state p{
    color:var(--text-600);
    margin-bottom:24px;
    font-size:15px;
}

/* ===== Footer ===== */
.site-footer{
    background:#EDF2F8;
    border-top:2px solid var(--brand-600);
    padding-top:56px;
}
.footer-grid{
    display:grid;
    grid-template-columns:1.5fr 1fr 1fr 1.2fr;
    gap:40px;
    padding-bottom:40px;
}
.footer-logo{
    display:flex;
    align-items:center;
    gap:8px;
    font-size:20px;
    font-weight:700;
    color:var(--text-900);
    margin-bottom:12px;
}
.footer-logo:hover{text-decoration:none;color:var(--text-900)}
.footer-logo .logo-icon{
    width:32px;
    height:32px;
    font-size:18px;
    border-radius:8px;
}
.footer-brand p{
    font-size:14px;
    color:var(--text-600);
    line-height:1.7;
    max-width:280px;
}
.footer-col h4{
    font-size:15px;
    font-weight:600;
    color:var(--text-900);
    margin-bottom:14px;
}
.footer-col ul{
    list-style:none;
}
.footer-col ul li{
    margin-bottom:10px;
    font-size:14px;
    color:var(--text-600);
}
.footer-col ul a{
    color:var(--text-600);
    font-size:14px;
    transition:color .2s;
}
.footer-col ul a:hover{
    color:var(--brand-600);
    text-decoration:none;
}
.footer-bottom{
    border-top:1px solid rgba(23,35,61,.08);
    padding:20px 0;
    text-align:center;
}
.footer-bottom p{
    font-size:13px;
    color:var(--text-400);
    line-height:1.6;
}
.footer-domain{
    font-size:13px;
    color:var(--text-400);
    margin-top:2px;
}

/* ===== Responsive ===== */
@media (max-width:1024px){
    .related-grid{
        grid-template-columns:repeat(3,1fr);
        gap:16px;
    }
    .footer-grid{
        grid-template-columns:1fr 1fr;
        gap:32px;
    }
}
@media (max-width:768px){
    .header-inner{height:64px}
    .nav-toggle{display:flex}
    .header-cta{display:none}
    .main-nav{
        position:fixed;
        top:64px;
        left:0;
        right:0;
        background:var(--surface);
        flex-direction:column;
        align-items:stretch;
        gap:4px;
        padding:16px 24px 24px;
        border-bottom:1px solid var(--border);
        box-shadow:var(--shadow-md);
        transform:translateY(-130%);
        opacity:0;
        visibility:hidden;
        transition:transform .3s ease,opacity .3s ease,visibility .3s;
        z-index:99;
        max-height:calc(100vh - 64px);
        overflow-y:auto;
    }
    .main-nav.open{
        transform:translateY(0);
        opacity:1;
        visibility:visible;
    }
    .nav-link{
        width:100%;
        padding:12px 16px;
        border-radius:10px;
        text-align:left;
        font-size:16px;
    }
    .article-card{
        padding:32px 24px;
        border-radius:14px;
    }
    .article-header h1{
        font-size:26px;
    }
    .article-meta{
        gap:12px;
        font-size:13px;
    }
    .related-grid{
        grid-template-columns:1fr;
        gap:16px;
    }
    .related-back .btn{
        width:100%;
    }
    .breadcrumb-wrap{
        padding:12px 0;
    }
    .breadcrumb{
        font-size:13px;
    }
    .footer-grid{
        grid-template-columns:1fr;
        gap:24px;
    }
    .section-header h2{
        font-size:24px;
    }
}
@media (max-width:520px){
    .container{
        padding-left:16px;
        padding-right:16px;
    }
    .article-card{
        padding:24px 18px;
    }
    .article-header h1{
        font-size:22px;
    }
    .article-body{
        font-size:15px;
    }
    .article-body h2{
        font-size:20px;
    }
    .article-body h3{
        font-size:17px;
    }
    .article-nav{
        flex-direction:column;
        gap:6px;
    }
    .related-info h3{
        font-size:15px;
    }
    .footer-bottom p{
        font-size:12px;
    }
}

/* roulang page: category2 */
:root {
            --brand-600: #1E6FD9;
            --brand-700: #174FA8;
            --brand-100: #E8F1FC;
            --accent-500: #D9A441;
            --accent-600: #B8862F;
            --bg: #F6F8FB;
            --surface: #FFFFFF;
            --text-900: #17233D;
            --text-600: #4E5D73;
            --text-400: #8A97A8;
            --border: #E3E9F0;
            --success: #1F9D72;
            --radius-lg: 16px;
            --radius-md: 12px;
            --radius-sm: 10px;
            --shadow-sm: 0 2px 8px rgba(23, 35, 61, 0.06);
            --shadow-md: 0 12px 28px rgba(23, 35, 61, 0.10);
            --font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans CJK SC', sans-serif;
            --transition: 0.25s ease;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-family);
            background: var(--bg);
            color: var(--text-900);
            line-height: 1.75;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }

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

        a {
            color: var(--brand-600);
            text-decoration: none;
            transition: color var(--transition);
        }

        a:hover {
            color: var(--brand-700);
            text-decoration: underline;
        }

        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--brand-600);
            outline-offset: 2px;
        }

        button {
            font-family: var(--font-family);
            cursor: pointer;
            border: none;
            background: none;
        }

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

        /* ======= Header 导航 ======= */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: var(--surface);
            border-bottom: 1px solid var(--border);
            transition: box-shadow var(--transition);
        }

        .site-header.scrolled {
            box-shadow: 0 2px 12px rgba(23, 35, 61, 0.08);
        }

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

        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: var(--text-900);
            flex-shrink: 0;
        }

        .logo:hover {
            text-decoration: none;
            color: var(--text-900);
        }

        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            background: var(--brand-600);
            color: #fff;
            border-radius: 9px;
            font-size: 19px;
            font-weight: 700;
            letter-spacing: 0;
        }

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

        .nav-link {
            display: inline-block;
            padding: 8px 18px;
            border-radius: 999px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-600);
            transition: background var(--transition), color var(--transition);
        }

        .nav-link:hover {
            color: var(--brand-600);
            background: var(--brand-100);
            text-decoration: none;
        }

        .nav-link.active {
            color: var(--brand-700);
            background: var(--brand-100);
            font-weight: 600;
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 9px 22px;
            background: var(--accent-500);
            color: #17233D;
            font-weight: 600;
            font-size: 15px;
            border-radius: 10px;
            transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
            flex-shrink: 0;
        }

        .nav-cta:hover {
            background: var(--accent-600);
            color: #17233D;
            text-decoration: none;
            transform: translateY(-1px);
            box-shadow: 0 6px 16px rgba(217, 164, 65, 0.3);
        }

        .nav-cta:active {
            transform: translateY(0);
            box-shadow: none;
        }

        .menu-toggle {
            display: none;
            width: 44px;
            height: 44px;
            border-radius: 10px;
            border: 1px solid var(--border);
            background: var(--surface);
            align-items: center;
            justify-content: center;
            font-size: 22px;
            color: var(--text-900);
            flex-shrink: 0;
        }

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

        /* ======= 分类 Hero 条 ======= */
        .category-hero {
            position: relative;
            background: linear-gradient(rgba(255, 255, 255, 0.90), rgba(246, 248, 251, 0.94)), url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
            padding: 78px 0 64px;
            border-bottom: 1px solid var(--border);
        }

        .category-hero .breadcrumb {
            font-size: 14px;
            color: var(--text-400);
            margin-bottom: 28px;
            display: flex;
            gap: 8px;
            align-items: center;
            flex-wrap: wrap;
        }

        .category-hero .breadcrumb a {
            color: var(--text-400);
            transition: color var(--transition);
        }

        .category-hero .breadcrumb a:hover {
            color: var(--brand-600);
            text-decoration: none;
        }

        .category-hero .breadcrumb .sep {
            color: var(--text-400);
        }

        .category-hero .breadcrumb .current {
            color: var(--text-600);
        }

        .category-hero h1 {
            font-size: 40px;
            line-height: 1.3;
            font-weight: 700;
            letter-spacing: 1px;
            margin-bottom: 16px;
            color: var(--text-900);
        }

        .category-hero .lead {
            font-size: 17px;
            color: var(--text-600);
            max-width: 560px;
            line-height: 1.7;
        }

        .category-hero .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--accent-500);
            color: #17233D;
            padding: 5px 14px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 20px;
        }

        /* ======= 区块通用 ======= */
        .section {
            padding: 80px 0;
        }

        .section-alt {
            background: var(--surface);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }

        .section-title {
            font-size: 30px;
            line-height: 1.4;
            font-weight: 700;
            letter-spacing: 1px;
            margin-bottom: 12px;
            color: var(--text-900);
        }

        .section-desc {
            font-size: 15px;
            color: var(--text-600);
            max-width: 600px;
            margin-bottom: 44px;
            line-height: 1.7;
        }

        /* ======= 资料清单区 ======= */
        .resource-list {
            display: flex;
            flex-direction: column;
            gap: 20px;
            max-width: 920px;
            margin: 0 auto;
        }

        .resource-item {
            display: flex;
            gap: 26px;
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 30px 32px;
            transition: box-shadow var(--transition), border-color var(--transition), transform var(--transition);
            position: relative;
        }

        .resource-item:hover {
            box-shadow: var(--shadow-md);
            border-color: var(--brand-600);
            transform: translateY(-2px);
        }

        .resource-item .num {
            font-size: 15px;
            font-weight: 700;
            color: var(--brand-600);
            background: var(--brand-100);
            width: 38px;
            height: 38px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            font-style: normal;
            letter-spacing: 0;
        }

        .resource-item .res-body {
            flex: 1;
            min-width: 0;
        }

        .resource-item .res-title {
            font-size: 19px;
            font-weight: 600;
            color: var(--text-900);
            margin-bottom: 6px;
            line-height: 1.45;
        }

        .resource-item .res-desc {
            font-size: 15px;
            color: var(--text-600);
            line-height: 1.7;
            margin-bottom: 10px;
        }

        .resource-item .res-tags {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
        }

        .tag {
            display: inline-flex;
            align-items: center;
            padding: 3px 12px;
            border-radius: 999px;
            font-size: 12px;
            font-weight: 500;
            background: var(--brand-100);
            color: var(--brand-700);
        }

        .tag-gold {
            background: #FDF3E0;
            color: #A06D17;
        }

        .tag-green {
            background: #E6F6F0;
            color: #157A55;
        }

        /* ======= 1大2小卡片区 ======= */
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .feature-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: box-shadow var(--transition), transform var(--transition), border-color var(--transition);
        }

        .feature-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
            border-color: var(--brand-600);
        }

        .feature-card-large {
            grid-column: span 2;
            display: flex;
            background: var(--surface);
        }

        .feature-card-large .feature-img-wrap {
            flex: 0 0 46%;
            min-height: 250px;
            position: relative;
            overflow: hidden;
        }

        .feature-card-large .feature-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            position: absolute;
            top: 0;
            left: 0;
        }

        .feature-card-large .feature-content {
            padding: 30px 28px;
            flex: 1;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .feature-card-small .feature-img-wrap {
            position: relative;
            aspect-ratio: 16 / 10;
            overflow: hidden;
        }

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

        .feature-card-small:hover .feature-img-wrap img {
            transform: scale(1.04);
        }

        .feature-card-small .feature-content {
            padding: 20px 20px 22px;
        }

        .feature-card .feature-title {
            font-size: 19px;
            font-weight: 600;
            color: var(--text-900);
            margin-bottom: 6px;
            line-height: 1.45;
        }

        .feature-card .feature-desc {
            font-size: 14px;
            color: var(--text-600);
            line-height: 1.65;
            margin-bottom: 14px;
        }

        .feature-card .feature-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 500;
            color: var(--brand-600);
        }

        .feature-card .feature-link:hover {
            text-decoration: none;
            color: var(--brand-700);
        }

        .feature-card .feature-link svg {
            transition: transform var(--transition);
        }

        .feature-card:hover .feature-link svg {
            transform: translateX(4px);
        }

        .feature-badge {
            position: absolute;
            top: 14px;
            right: 14px;
            background: var(--accent-500);
            color: #17233D;
            font-size: 12px;
            font-weight: 700;
            padding: 4px 12px;
            border-radius: 999px;
            z-index: 2;
            letter-spacing: 0.5px;
        }

        /* ======= 权益要点 ======= */
        .benefit-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .benefit-item {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            text-align: center;
            transition: box-shadow var(--transition), transform var(--transition);
        }

        .benefit-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }

        .benefit-icon {
            width: 52px;
            height: 52px;
            border-radius: 14px;
            background: var(--brand-100);
            color: var(--brand-600);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 14px;
            font-size: 24px;
        }

        .benefit-item h3 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 6px;
            color: var(--text-900);
        }

        .benefit-item p {
            font-size: 14px;
            color: var(--text-600);
            line-height: 1.6;
        }

        /* ======= CTA 横幅 ======= */
        .cta-banner {
            background: #FDF3E0;
            border-top: 1px solid #EFE0C6;
            border-bottom: 1px solid #EFE0C6;
            padding: 64px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-banner::before {
            content: '';
            position: absolute;
            top: -30px;
            right: -30px;
            width: 120px;
            height: 120px;
            border-radius: 50%;
            background: rgba(217, 164, 65, 0.12);
        }

        .cta-banner::after {
            content: '';
            position: absolute;
            bottom: -20px;
            left: -20px;
            width: 80px;
            height: 80px;
            border-radius: 50%;
            background: rgba(217, 164, 65, 0.08);
        }

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

        .cta-banner h2 {
            font-size: 28px;
            font-weight: 700;
            color: var(--text-900);
            margin-bottom: 14px;
            letter-spacing: 0.5px;
        }

        .cta-banner p {
            font-size: 16px;
            color: var(--text-600);
            max-width: 520px;
            margin: 0 auto 28px;
            line-height: 1.7;
        }

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

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 30px;
            font-size: 16px;
            font-weight: 600;
            border-radius: var(--radius-md);
            transition: all var(--transition);
            text-decoration: none;
        }

        .btn-primary {
            background: var(--brand-600);
            color: #fff;
        }

        .btn-primary:hover {
            background: var(--brand-700);
            color: #fff;
            text-decoration: none;
            transform: translateY(-1px);
            box-shadow: 0 8px 18px rgba(30, 111, 217, 0.25);
        }

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

        .btn-gold {
            background: var(--accent-500);
            color: #17233D;
        }

        .btn-gold:hover {
            background: var(--accent-600);
            color: #17233D;
            text-decoration: none;
            transform: translateY(-1px);
            box-shadow: 0 8px 18px rgba(217, 164, 65, 0.3);
        }

        .btn-gold:active {
            transform: translateY(0);
            box-shadow: none;
        }

        .btn-outline {
            background: transparent;
            color: var(--brand-600);
            border: 1px solid var(--brand-600);
        }

        .btn-outline:hover {
            background: var(--brand-100);
            color: var(--brand-700);
            text-decoration: none;
            transform: translateY(-1px);
        }

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

        /* ======= 相关入口 ======= */
        .related-entry {
            padding: 48px 0 80px;
            background: var(--bg);
        }

        .related-entry .entry-links {
            display: flex;
            justify-content: center;
            gap: 32px;
            flex-wrap: wrap;
        }

        .entry-link-item {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 28px;
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: 999px;
            color: var(--text-600);
            font-size: 15px;
            font-weight: 500;
            transition: all var(--transition);
        }

        .entry-link-item:hover {
            border-color: var(--brand-600);
            color: var(--brand-600);
            box-shadow: var(--shadow-sm);
            text-decoration: none;
            transform: translateY(-2px);
        }

        .entry-link-item svg {
            width: 18px;
            height: 18px;
        }

        /* ======= Footer ======= */
        .site-footer {
            background: #EDF2F8;
            border-top: 2px solid var(--brand-600);
            padding-top: 56px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
            gap: 40px;
            padding-bottom: 40px;
        }

        .footer-brand .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 700;
            color: var(--text-900);
            margin-bottom: 14px;
        }

        .footer-brand .footer-logo:hover {
            text-decoration: none;
        }

        .footer-brand p {
            font-size: 14px;
            color: var(--text-600);
            line-height: 1.7;
            max-width: 280px;
        }

        .footer-col h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-900);
            margin-bottom: 16px;
        }

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

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

        .footer-col ul li a {
            font-size: 14px;
            color: var(--text-600);
            transition: color var(--transition);
        }

        .footer-col ul li a:hover {
            color: var(--brand-600);
            text-decoration: none;
        }

        .footer-bottom {
            border-top: 1px solid var(--border);
            padding: 20px 0;
        }

        .footer-bottom .container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
        }

        .footer-bottom p {
            font-size: 13px;
            color: var(--text-400);
        }

        .footer-domain {
            font-family: monospace;
        }

        /* ======= 响应式 ======= */
        @media (max-width: 1024px) {
            .benefit-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .feature-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .feature-card-large {
                grid-column: span 2;
            }
            .feature-card-small {
                grid-column: span 1;
            }
        }

        @media (max-width: 768px) {
            .section {
                padding: 56px 0;
            }
            .category-hero {
                padding: 48px 0 40px;
            }
            .category-hero h1 {
                font-size: 30px;
            }
            .section-title {
                font-size: 24px;
            }
            .header-inner {
                height: 64px;
            }
            .menu-toggle {
                display: flex;
            }
            .main-nav {
                position: fixed;
                top: 0;
                left: 0;
                right: 0;
                bottom: 0;
                background: var(--surface);
                flex-direction: column;
                align-items: center;
                justify-content: center;
                gap: 12px;
                z-index: 200;
                display: none;
                padding: 40px 20px;
            }
            .main-nav.open {
                display: flex;
            }
            .nav-link {
                font-size: 18px;
                padding: 10px 24px;
            }
            .nav-cta {
                display: none;
            }
            .nav-cta.mobile-visible {
                display: inline-flex;
                margin-top: 16px;
            }
            .menu-toggle {
                display: flex;
            }
            .menu-toggle .close-icon {
                display: none;
            }
            .menu-toggle.active .burger-icon {
                display: none;
            }
            .menu-toggle.active .close-icon {
                display: inline;
            }
            .resource-item {
                flex-direction: column;
                gap: 14px;
                padding: 24px 22px;
            }
            .feature-grid {
                grid-template-columns: 1fr;
            }
            .feature-card-large {
                grid-column: span 1;
                flex-direction: column;
            }
            .feature-card-large .feature-img-wrap {
                flex: none;
                height: 180px;
                position: relative;
            }
            .feature-card-large .feature-img-wrap img {
                position: absolute;
                height: 100%;
            }
            .benefit-grid {
                grid-template-columns: 1fr;
            }
            .cta-banner h2 {
                font-size: 24px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-bottom .container {
                flex-direction: column;
                text-align: center;
            }
            .cta-buttons {
                flex-direction: column;
                align-items: center;
            }
            .btn {
                width: 100%;
                max-width: 280px;
            }
        }

        @media (min-width: 769px) {
            .menu-toggle {
                display: none;
            }
        }