/* roulang page: index */
/* ===== 设计变量 ===== */
        :root {
            --primary: #0f766e;
            --primary-deep: #115e59;
            --primary-soft: #ccfbf1;
            --accent: #f59e0b;
            --accent-deep: #d97706;
            --accent-soft: #fef3c7;
            --dark: #0f172a;
            --dark-soft: #1e293b;
            --ink: #22303f;
            --muted: #64748b;
            --bg: #f4f8f7;
            --white: #ffffff;
            --border: #dfe9e7;
            --radius-sm: 8px;
            --radius: 16px;
            --radius-lg: 24px;
            --shadow: 0 10px 30px rgba(15, 23, 42, .08);
            --shadow-hover: 0 18px 45px rgba(15, 23, 42, .14);
            --transition: all .3s ease;
            --container: 1200px;
        }

        /* ===== 基础 Reset ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            font-size: 16px;
            line-height: 1.7;
            color: var(--ink);
            background: var(--white);
            -webkit-font-smoothing: antialiased;
        }
        img {
            max-width: 100%;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition);
        }
        button,
        input {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            background: none;
        }
        ul,
        ol {
            list-style: none;
        }

        /* ===== 通用容器与板块 ===== */
        .container {
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 28px;
        }
        .section {
            padding: 96px 0;
        }
        .section-bg {
            background: var(--bg);
        }
        .section-head {
            text-align: center;
            max-width: 680px;
            margin: 0 auto 56px;
        }
        .section-eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 700;
            letter-spacing: 3px;
            text-transform: uppercase;
            color: var(--primary);
            background: var(--primary-soft);
            padding: 7px 16px;
            border-radius: 40px;
            margin-bottom: 18px;
        }
        .section-title {
            font-size: 36px;
            font-weight: 800;
            line-height: 1.3;
            color: var(--dark);
            letter-spacing: -0.5px;
        }
        .section-desc {
            font-size: 16px;
            color: var(--muted);
            margin-top: 14px;
            line-height: 1.8;
        }

        /* ===== 按钮 ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            padding: 14px 32px;
            border-radius: 50px;
            font-size: 15px;
            font-weight: 600;
            transition: var(--transition);
            cursor: pointer;
            line-height: 1.2;
        }
        .btn-primary {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 8px 22px rgba(15, 118, 110, .28);
        }
        .btn-primary:hover {
            background: var(--primary-deep);
            transform: translateY(-2px);
            box-shadow: 0 12px 30px rgba(15, 118, 110, .34);
        }
        .btn-outline-light {
            border: 1.5px solid rgba(255, 255, 255, .55);
            color: #fff;
            background: rgba(255, 255, 255, .08);
        }
        .btn-outline-light:hover {
            background: rgba(255, 255, 255, .16);
            transform: translateY(-2px);
            border-color: #fff;
        }
        .btn-accent {
            background: var(--accent);
            color: var(--dark);
            box-shadow: 0 8px 22px rgba(245, 158, 11, .3);
        }
        .btn-accent:hover {
            background: var(--accent-deep);
            transform: translateY(-2px);
        }
        .btn:focus-visible {
            outline: 3px solid rgba(245, 158, 11, .5);
            outline-offset: 2px;
        }

        /* ===== 顶部导航 ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, .92);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--border);
        }
        .header-inner {
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 28px;
            height: 76px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 18px;
            position: relative;
        }
        .logo {
            font-size: 28px;
            font-weight: 900;
            color: var(--dark);
            letter-spacing: -0.8px;
            flex-shrink: 0;
        }
        .logo span {
            color: var(--primary);
        }
        .nav-tabs {
            display: flex;
            align-items: center;
            gap: 6px;
            background: #eef3f2;
            padding: 5px;
            border-radius: 40px;
        }
        .nav-tab {
            padding: 9px 22px;
            border-radius: 40px;
            font-size: 14px;
            font-weight: 600;
            color: var(--muted);
            white-space: nowrap;
        }
        .nav-tab:hover {
            color: var(--primary-deep);
            background: rgba(255, 255, 255, .7);
        }
        .nav-tab.active {
            background: var(--dark);
            color: #fff;
            box-shadow: 0 4px 14px rgba(15, 23, 42, .18);
        }
        .header-right {
            display: flex;
            align-items: center;
            gap: 14px;
            flex-shrink: 0;
        }
        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 22px;
            border-radius: 40px;
            background: var(--primary);
            color: #fff;
            font-size: 14px;
            font-weight: 600;
            box-shadow: 0 6px 16px rgba(15, 118, 110, .24);
        }
        .nav-cta:hover {
            background: var(--primary-deep);
            transform: translateY(-1px);
        }
        .mobile-toggle {
            display: none;
            width: 42px;
            height: 42px;
            border-radius: 12px;
            background: var(--bg);
            color: var(--dark);
            align-items: center;
            justify-content: center;
            font-size: 18px;
            cursor: pointer;
        }
        .mobile-toggle:hover {
            background: var(--primary-soft);
            color: var(--primary-deep);
        }

        /* ===== Hero 首屏 ===== */
        .hero {
            position: relative;
            color: #fff;
            padding: 130px 0 110px;
            background: linear-gradient(128deg, rgba(15, 23, 42, .88) 0%, rgba(15, 118, 110, .78) 62%, rgba(17, 94, 89, .82) 100%), url('/assets/images/backpic/back-1.png') center / cover no-repeat;
            overflow: hidden;
        }
        .hero::after {
            content: "";
            position: absolute;
            right: -120px;
            top: -80px;
            width: 380px;
            height: 380px;
            border-radius: 50%;
            border: 60px solid rgba(255, 255, 255, .06);
        }
        .hero-inner {
            position: relative;
            z-index: 2;
            max-width: 760px;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: rgba(255, 255, 255, .12);
            border: 1px solid rgba(255, 255, 255, .22);
            padding: 8px 20px;
            border-radius: 40px;
            font-size: 13px;
            font-weight: 500;
            letter-spacing: 1px;
        }
        .hero-badge i {
            color: var(--accent);
        }
        .hero-title {
            font-size: 52px;
            font-weight: 800;
            line-height: 1.2;
            margin: 24px 0 20px;
            letter-spacing: -1px;
        }
        .hero-title em {
            font-style: normal;
            color: #7ee0d3;
        }
        .hero-sub {
            font-size: 18px;
            line-height: 1.85;
            color: rgba(255, 255, 255, .82);
            max-width: 620px;
            margin-bottom: 36px;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
        }
        .hero-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 0;
            margin-top: 58px;
            padding-top: 34px;
            border-top: 1px solid rgba(255, 255, 255, .16);
        }
        .hero-stat {
            padding: 0 36px;
            border-right: 1px solid rgba(255, 255, 255, .18);
        }
        .hero-stat:first-child {
            padding-left: 0;
        }
        .hero-stat:last-child {
            border-right: none;
        }
        .hero-stat-num {
            font-size: 30px;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
        }
        .hero-stat-label {
            font-size: 13px;
            color: rgba(255, 255, 255, .65);
            margin-top: 4px;
        }
        .hero-scroll {
            position: absolute;
            bottom: 30px;
            left: 50%;
            transform: translateX(-50%);
            color: rgba(255, 255, 255, .6);
            font-size: 18px;
            animation: floatY 2s ease-in-out infinite;
        }
        @keyframes floatY {
            0%,
            100% {
                transform: translate(-50%, 0);
            }
            50% {
                transform: translate(-50%, 8px);
            }
        }

        /* ===== 平台介绍 ===== */
        .intro-grid {
            display: grid;
            grid-template-columns: 1.05fr 1fr;
            gap: 64px;
            align-items: center;
        }
        .intro-list {
            margin-top: 28px;
            display: grid;
            gap: 18px;
        }
        .intro-list li {
            display: flex;
            gap: 14px;
            align-items: flex-start;
            font-size: 15px;
            color: var(--dark-soft);
            line-height: 1.7;
        }
        .intro-list li i {
            color: var(--primary);
            font-size: 18px;
            margin-top: 3px;
            flex-shrink: 0;
        }
        .intro-list strong {
            color: var(--dark);
            font-weight: 700;
        }
        .intro-media {
            position: relative;
        }
        .intro-media img {
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-hover);
            width: 100%;
            object-fit: cover;
            min-height: 380px;
        }
        .intro-float {
            position: absolute;
            left: -22px;
            bottom: 30px;
            background: #fff;
            border-radius: var(--radius);
            box-shadow: var(--shadow-hover);
            padding: 18px 24px;
            display: flex;
            align-items: center;
            gap: 14px;
        }
        .intro-float i {
            font-size: 26px;
            color: var(--accent);
        }
        .intro-float b {
            font-size: 22px;
            color: var(--dark);
            display: block;
            line-height: 1.2;
        }
        .intro-float small {
            font-size: 12px;
            color: var(--muted);
        }

        /* ===== 分类入口 ===== */
        .category-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
        }
        .category-card {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            background: #fff;
            box-shadow: var(--shadow);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }
        .category-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
        }
        .category-card .cat-img {
            position: relative;
            height: 230px;
            overflow: hidden;
        }
        .category-card .cat-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .5s ease;
        }
        .category-card:hover .cat-img img {
            transform: scale(1.05);
        }
        .category-card .cat-img::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(15, 23, 42, .05) 0%, rgba(15, 23, 42, .4) 100%);
        }
        .cat-tag {
            position: absolute;
            top: 18px;
            left: 18px;
            z-index: 2;
            background: rgba(255, 255, 255, .92);
            color: var(--dark);
            font-size: 12px;
            font-weight: 700;
            padding: 6px 14px;
            border-radius: 30px;
            letter-spacing: 1px;
            box-shadow: 0 4px 12px rgba(0, 0, 0, .12);
        }
        .cat-body {
            padding: 28px 30px 32px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .cat-body h3 {
            font-size: 22px;
            font-weight: 800;
            color: var(--dark);
            margin-bottom: 10px;
        }
        .cat-body p {
            font-size: 15px;
            color: var(--muted);
            line-height: 1.75;
            flex: 1;
            margin-bottom: 20px;
        }
        .cat-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            font-weight: 700;
            color: var(--primary);
        }
        .cat-link i {
            transition: transform .3s ease;
        }
        .cat-link:hover {
            color: var(--primary-deep);
        }
        .cat-link:hover i {
            transform: translateX(5px);
        }

        /* ===== 最新动态 / CMS 列表 ===== */
        .news-card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 24px 26px;
            transition: var(--transition);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .news-card:hover {
            border-color: transparent;
            box-shadow: var(--shadow-hover);
            transform: translateY(-5px);
        }
        .news-card-top {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 10px;
            margin-bottom: 14px;
        }
        .news-cat {
            display: inline-block;
            background: var(--primary-soft);
            color: var(--primary-deep);
            font-size: 12px;
            font-weight: 700;
            padding: 4px 14px;
            border-radius: 30px;
            letter-spacing: .5px;
        }
        .news-date {
            font-size: 12px;
            color: var(--muted);
            white-space: nowrap;
        }
        .news-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--dark);
            line-height: 1.45;
            margin-bottom: 10px;
        }
        .news-summary {
            font-size: 14px;
            color: var(--muted);
            line-height: 1.75;
            flex: 1;
            overflow: hidden;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
        }
        .news-more {
            margin-top: 18px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
        }
        .news-more i {
            transition: transform .3s ease;
        }
        .news-card:hover .news-more i {
            transform: translateX(5px);
        }
        .empty-tip {
            text-align: center;
            padding: 60px 20px;
            color: var(--muted);
            font-size: 15px;
            background: #fff;
            border-radius: var(--radius);
            border: 1px dashed var(--border);
        }
        .section-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            margin-top: 40px;
            padding: 10px 22px;
            border-radius: 40px;
            border: 1.5px solid var(--border);
            transition: var(--transition);
        }
        .section-link:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            transform: translateY(-2px);
        }

        /* ===== 核心能力 ===== */
        .features-section {
            background: linear-gradient(130deg, rgba(15, 23, 42, .94) 0%, rgba(17, 94, 89, .88) 100%), url('/assets/images/backpic/back-3.png') center / cover no-repeat;
            color: #fff;
        }
        .features-section .section-title {
            color: #fff;
        }
        .features-section .section-desc {
            color: rgba(255, 255, 255, .7);
        }
        .features-section .section-eyebrow {
            background: rgba(255, 255, 255, .14);
            color: #7ee0d3;
        }
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            margin-top: 20px;
        }
        .feature-card {
            background: rgba(255, 255, 255, .08);
            border: 1px solid rgba(255, 255, 255, .14);
            border-radius: var(--radius);
            padding: 34px 26px;
            transition: var(--transition);
            text-align: left;
        }
        .feature-card:hover {
            background: rgba(255, 255, 255, .14);
            transform: translateY(-6px);
            border-color: rgba(255, 255, 255, .3);
        }
        .feature-icon {
            width: 56px;
            height: 56px;
            border-radius: 16px;
            background: var(--accent);
            color: var(--dark);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            margin-bottom: 20px;
        }
        .feature-card h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 10px;
            color: #fff;
        }
        .feature-card p {
            font-size: 14px;
            line-height: 1.75;
            color: rgba(255, 255, 255, .68);
        }

        /* ===== 数据统计 ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
        }
        .stat-card {
            text-align: center;
            padding: 44px 20px;
            background: #fff;
            border-radius: var(--radius);
            border: 1px solid var(--border);
            transition: var(--transition);
        }
        .stat-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
            border-color: transparent;
        }
        .stat-num {
            font-size: 48px;
            font-weight: 900;
            color: var(--dark);
            line-height: 1.1;
            letter-spacing: -1.5px;
        }
        .stat-num span {
            color: var(--primary);
        }
        .stat-label {
            font-size: 14px;
            color: var(--muted);
            margin-top: 12px;
            font-weight: 500;
        }
        .stat-bar {
            width: 34px;
            height: 4px;
            border-radius: 4px;
            background: var(--accent);
            margin: 18px auto 0;
        }

        /* ===== 探索路径 ===== */
        .process-section {
            background: var(--bg);
        }
        .process-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
            position: relative;
        }
        .process-grid::before {
            content: "";
            position: absolute;
            top: 42px;
            left: 12%;
            right: 12%;
            height: 2px;
            background: linear-gradient(90deg, var(--primary-soft), var(--primary), var(--accent));
            border-radius: 4px;
            z-index: 0;
        }
        .step-card {
            position: relative;
            z-index: 1;
            text-align: center;
            padding: 0 18px;
        }
        .step-num {
            width: 84px;
            height: 84px;
            margin: 0 auto 24px;
            border-radius: 50%;
            background: #fff;
            border: 3px solid var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 30px;
            font-weight: 800;
            color: var(--primary);
            box-shadow: 0 0 0 8px rgba(15, 118, 110, .08);
        }
        .step-card:nth-child(2) .step-num {
            border-color: var(--accent);
            color: var(--accent);
            box-shadow: 0 0 0 8px rgba(245, 158, 11, .1);
        }
        .step-card:nth-child(3) .step-num {
            border-color: var(--dark);
            color: var(--dark);
            box-shadow: 0 0 0 8px rgba(15, 23, 42, .06);
        }
        .step-card h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--dark);
            margin-bottom: 10px;
        }
        .step-card p {
            font-size: 14px;
            color: var(--muted);
            line-height: 1.75;
            max-width: 280px;
            margin: 0 auto;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 780px;
            margin: 0 auto;
            display: grid;
            gap: 16px;
        }
        .faq-item {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow);
        }
        .faq-item summary {
            list-style: none;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 22px 26px;
            cursor: pointer;
            font-size: 16px;
            font-weight: 700;
            color: var(--dark);
            transition: var(--transition);
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary i {
            color: var(--primary);
            font-size: 16px;
            flex-shrink: 0;
            transition: transform .35s ease;
        }
        .faq-item[open] summary {
            color: var(--primary-deep);
        }
        .faq-item[open] summary i {
            transform: rotate(45deg);
        }
        .faq-answer {
            padding: 0 26px 24px;
            font-size: 15px;
            color: var(--muted);
            line-height: 1.8;
        }

        /* ===== CTA ===== */
        .cta-section {
            position: relative;
            background: linear-gradient(120deg, rgba(15, 118, 110, .9), rgba(17, 94, 89, .82)), url('/assets/images/backpic/back-2.png') center / cover no-repeat;
            text-align: center;
            color: #fff;
            padding: 100px 0;
        }
        .cta-title {
            font-size: 38px;
            font-weight: 800;
            line-height: 1.3;
            letter-spacing: -0.5px;
        }
        .cta-sub {
            font-size: 17px;
            color: rgba(255, 255, 255, .78);
            max-width: 520px;
            margin: 18px auto 34px;
            line-height: 1.8;
        }
        .cta-note {
            margin-top: 22px;
            font-size: 13px;
            color: rgba(255, 255, 255, .62);
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            flex-wrap: wrap;
        }
        .cta-note span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 14px;
            border-radius: 30px;
            background: rgba(255, 255, 255, .12);
            border: 1px solid rgba(255, 255, 255, .18);
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--dark);
            color: #94a3b8;
            padding: 70px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.3fr 1fr 1fr;
            gap: 48px;
            padding-bottom: 50px;
        }
        .footer-brand .logo {
            color: #fff;
            font-size: 26px;
            margin-bottom: 16px;
            display: inline-block;
        }
        .footer-brand .logo span {
            color: #7ee0d3;
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            color: #94a3b8;
            max-width: 320px;
        }
        .footer-col h4 {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 18px;
        }
        .footer-col li {
            margin-bottom: 10px;
        }
        .footer-col a {
            font-size: 14px;
            color: #94a3b8;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .footer-col a:hover {
            color: #7ee0d3;
            transform: translateX(4px);
        }
        .footer-bar {
            border-top: 1px solid rgba(255, 255, 255, .08);
            padding: 20px 0;
            font-size: 13px;
            color: #64748b;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 10px;
        }
        .footer-bar a {
            color: #94a3b8;
        }
        .footer-bar a:hover {
            color: #7ee0d3;
        }

        /* ===== 响应式断点 ===== */
        @media (max-width: 1024px) {
            .section {
                padding: 76px 0;
            }
            .hero {
                padding: 100px 0 90px;
            }
            .hero-title {
                font-size: 42px;
            }
            .feature-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 18px;
            }
            .stats-grid {
                gap: 18px;
            }
            .stat-num {
                font-size: 38px;
            }
            .intro-grid {
                gap: 40px;
            }
        }
        @media (max-width: 768px) {
            .container {
                padding: 0 20px;
            }
            .header-inner {
                padding: 0 20px;
                height: 68px;
            }
            .nav-cta {
                display: none;
            }
            .mobile-toggle {
                display: flex;
            }
            .nav-tabs {
                display: none;
                position: absolute;
                top: 60px;
                left: 20px;
                right: 20px;
                background: #fff;
                border-radius: var(--radius);
                box-shadow: var(--shadow-hover);
                padding: 10px;
                flex-direction: column;
                align-items: stretch;
                gap: 4px;
            }
            .nav-tabs.open {
                display: flex;
            }
            .nav-tab {
                display: block;
                text-align: center;
                padding: 12px 20px;
                border-radius: 12px;
            }
            .nav-tab.active {
                background: var(--primary);
            }
            .hero {
                padding: 80px 0 72px;
            }
            .hero-title {
                font-size: 34px;
            }
            .hero-sub {
                font-size: 16px;
            }
            .hero-stats {
                gap: 20px;
            }
            .hero-stat {
                padding: 0 20px;
            }
            .intro-grid {
                grid-template-columns: 1fr;
                gap: 44px;
            }
            .intro-float {
                left: 10px;
            }
            .category-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .feature-grid {
                grid-template-columns: 1fr 1fr;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
            }
            .process-grid {
                grid-template-columns: 1fr;
                gap: 36px;
            }
            .process-grid::before {
                display: none;
            }
            .section-title {
                font-size: 29px;
            }
            .cta-title {
                font-size: 30px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 36px;
            }
            .footer-bar {
                flex-direction: column;
                text-align: center;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .section {
                padding: 60px 0;
            }
            .hero {
                padding: 64px 0 60px;
            }
            .hero-title {
                font-size: 28px;
            }
            .hero-sub {
                font-size: 15px;
            }
            .hero-actions {
                flex-direction: column;
                align-items: stretch;
            }
            .hero-actions .btn {
                width: 100%;
            }
            .hero-stat {
                padding: 0 14px;
            }
            .hero-stat:first-child {
                padding-left: 0;
            }
            .hero-stat-num {
                font-size: 22px;
            }
            .hero-stat-label {
                font-size: 12px;
            }
            .feature-grid,
            .stats-grid {
                grid-template-columns: 1fr;
            }
            .category-card .cat-img {
                height: 180px;
            }
            .cat-body {
                padding: 22px 20px 26px;
            }
            .news-card {
                padding: 20px;
            }
            .cta-section {
                padding: 70px 0;
            }
            .cta-title {
                font-size: 25px;
            }
            .cta-sub {
                font-size: 15px;
            }
            .btn {
                padding: 13px 24px;
                font-size: 14px;
            }
            .faq-item summary {
                padding: 18px 20px;
                font-size: 15px;
            }
            .faq-answer {
                padding: 0 20px 20px;
                font-size: 14px;
            }
        }

/* roulang page: article */
:root {
  --primary: #1e2a4a;
  --primary-light: #2d3f66;
  --primary-dark: #131b33;
  --accent: #f59e0b;
  --accent-light: #fbbf24;
  --bg: #f5f7fb;
  --bg-deep: #eef1f6;
  --card: #ffffff;
  --text: #1e293b;
  --text-weak: #64748b;
  --text-light: #94a3b8;
  --border: #e2e8f0;
  --radius: 18px;
  --radius-sm: 12px;
  --radius-xs: 8px;
  --shadow-sm: 0 2px 8px rgba(30, 41, 59, 0.06);
  --shadow-md: 0 8px 24px rgba(30, 41, 59, 0.08);
  --shadow-lg: 0 16px 40px rgba(30, 41, 59, 0.12);
  --container: 1200px;
  --transition: 0.3s ease;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
  font-size: 16px;
  line-height: 1.75;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; transition: color var(--transition); }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; }
input, textarea { font-family: inherit; }

.grid-container { max-width: var(--container); padding-left: 24px; padding-right: 24px; }

.site-header {
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
  padding: 14px 0;
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  position: relative;
}
.logo {
  font-size: 28px;
  font-weight: 900;
  color: var(--primary);
  letter-spacing: -1px;
  line-height: 1;
}
.logo span { color: var(--accent); }
.nav-tabs {
  display: flex;
  gap: 5px;
  background: #f1f3f8;
  padding: 5px;
  border-radius: 50px;
}
.nav-tab {
  padding: 9px 22px;
  border-radius: 50px;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-weak);
  transition: all var(--transition);
  white-space: nowrap;
}
.nav-tab:hover { color: var(--primary); background: rgba(255, 255, 255, 0.7); }
.nav-tab.active {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 4px 14px rgba(30, 42, 74, 0.25);
}
.header-cta { flex-shrink: 0; }
.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid var(--border);
  background: #fff;
  border-radius: var(--radius-xs);
  align-items: center;
  justify-content: center;
  font-size: 18px;
  color: var(--primary);
  transition: all var(--transition);
}
.menu-toggle:hover { background: var(--bg-deep); }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: 50px;
  font-size: 14px;
  font-weight: 600;
  border: 2px solid transparent;
  transition: all var(--transition);
  line-height: 1.4;
}
.btn i { font-size: 14px; }
.btn-primary {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 4px 16px rgba(30, 42, 74, 0.2);
}
.btn-primary:hover {
  background: var(--primary-light);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(30, 42, 74, 0.3);
  color: #fff;
}
.btn-outline {
  background: transparent;
  border-color: var(--border);
  color: var(--primary);
}
.btn-outline:hover {
  border-color: var(--primary);
  background: rgba(30, 42, 74, 0.04);
  transform: translateY(-2px);
}
.btn-light {
  background: #fff;
  color: var(--primary);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.12);
}
.btn-light:hover { background: var(--accent-light); transform: translateY(-2px); }
.btn-sm { padding: 8px 20px; font-size: 13px; }
.btn-block { display: flex; width: 100%; }
.btn:focus-visible,
.nav-tab:focus-visible,
a:focus-visible {
  outline: 3px solid rgba(245, 158, 11, 0.5);
  outline-offset: 2px;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 14px;
  border-radius: 50px;
  font-size: 12px;
  font-weight: 600;
  line-height: 1.5;
}
.badge-accent {
  background: rgba(245, 158, 11, 0.15);
  color: #b45309;
}
.badge-light {
  background: #f1f5f9;
  color: var(--text-weak);
  border: 1px solid var(--border);
}
.badge-primary {
  background: var(--primary);
  color: #fff;
}

.section-head {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 48px;
}
.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 700;
  color: var(--accent);
  background: rgba(245, 158, 11, 0.1);
  padding: 6px 16px;
  border-radius: 50px;
  margin-bottom: 14px;
  text-transform: uppercase;
  letter-spacing: 1px;
}
.section-head h2 {
  font-size: 34px;
  font-weight: 800;
  color: var(--primary);
  line-height: 1.3;
  margin-bottom: 14px;
  letter-spacing: -0.5px;
}
.section-head p {
  color: var(--text-weak);
  font-size: 16px;
  line-height: 1.7;
}

.article-hero {
  background: linear-gradient(135deg, rgba(19, 27, 51, 0.92), rgba(30, 42, 74, 0.85)), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  color: #fff;
  padding: 72px 0 64px;
  position: relative;
}
.article-hero::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--accent), var(--accent-light), var(--accent));
  opacity: 0.7;
}
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 24px;
  flex-wrap: wrap;
}
.breadcrumb a { color: rgba(255, 255, 255, 0.8); transition: color var(--transition); }
.breadcrumb a:hover { color: var(--accent-light); }
.breadcrumb i { font-size: 10px; color: rgba(255, 255, 255, 0.4); }
.breadcrumb .current { color: var(--accent-light); }
.article-hero h1 {
  font-size: 40px;
  font-weight: 800;
  line-height: 1.35;
  max-width: 820px;
  margin-bottom: 22px;
  letter-spacing: -0.5px;
}
.article-meta {
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
}
.meta-date, .meta-read {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.75);
}
.article-meta .badge { background: rgba(245, 158, 11, 0.2); color: var(--accent-light); }

.article-body {
  padding: 48px 0 60px;
}
.article-card {
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
  padding: 44px;
  border: 1px solid rgba(226, 232, 240, 0.6);
}
.article-content {
  font-size: 16px;
  line-height: 1.9;
  color: #334155;
}
.article-content p { margin-bottom: 1.4em; }
.article-content h2 {
  font-size: 24px;
  font-weight: 700;
  color: var(--primary);
  margin: 1.6em 0 0.7em;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--bg-deep);
}
.article-content h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--primary);
  margin: 1.4em 0 0.6em;
}
.article-content h4 {
  font-size: 17px;
  font-weight: 600;
  color: var(--primary);
  margin: 1.2em 0 0.5em;
}
.article-content ul {
  list-style: disc;
  padding-left: 1.6em;
  margin-bottom: 1.4em;
}
.article-content ol {
  list-style: decimal;
  padding-left: 1.6em;
  margin-bottom: 1.4em;
}
.article-content li { margin-bottom: 0.4em; }
.article-content blockquote {
  border-left: 4px solid var(--accent);
  background: #fffbeb;
  padding: 16px 22px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin: 1.5em 0;
  color: #92400e;
  font-style: normal;
}
.article-content blockquote p { margin-bottom: 0; }
.article-content img {
  border-radius: var(--radius-sm);
  margin: 1.5em 0;
  box-shadow: var(--shadow-sm);
}
.article-content a {
  color: var(--accent);
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 3px;
}
.article-content a:hover { color: var(--primary); }
.article-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5em 0;
  font-size: 15px;
}
.article-content table th,
.article-content table td {
  border: 1px solid var(--border);
  padding: 10px 14px;
  text-align: left;
}
.article-content table th { background: var(--bg-deep); font-weight: 600; color: var(--primary); }
.article-content hr { border: none; border-top: 1px solid var(--border); margin: 2em 0; }
.article-content code {
  background: #f1f5f9;
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 14px;
  color: var(--primary);
}
.article-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 32px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
}
.tag {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  background: #f8fafc;
  border: 1px solid var(--border);
  padding: 6px 14px;
  border-radius: 50px;
  font-size: 13px;
  color: var(--text-weak);
  transition: all var(--transition);
}
.tag:hover { border-color: var(--accent); color: var(--accent); background: rgba(245, 158, 11, 0.05); }

.not-found {
  text-align: center;
  padding: 60px 20px;
}
.not-found .not-found-icon {
  width: 84px;
  height: 84px;
  border-radius: 50%;
  background: #f1f5f9;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 32px;
  color: var(--text-light);
  margin: 0 auto 24px;
}
.not-found h2 { font-size: 26px; color: var(--primary); margin-bottom: 12px; }
.not-found p { color: var(--text-weak); margin-bottom: 24px; }

.article-sidebar { display: flex; flex-direction: column; gap: 24px; }
.side-card {
  background: var(--card);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow-sm);
  border: 1px solid rgba(226, 232, 240, 0.6);
}
.side-card h4 {
  font-size: 16px;
  font-weight: 700;
  color: var(--primary);
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 14px;
}
.side-card h4 i { color: var(--accent); }
.side-card p { font-size: 14px; color: var(--text-weak); line-height: 1.8; margin-bottom: 18px; }
.side-links li { margin-bottom: 4px; }
.side-links a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border-radius: var(--radius-xs);
  font-size: 14px;
  font-weight: 500;
  color: var(--text);
  transition: all var(--transition);
}
.side-links a i { width: 18px; text-align: center; color: var(--text-light); transition: color var(--transition); }
.side-links a:hover { background: #f8fafc; color: var(--primary); }
.side-links a:hover i { color: var(--accent); }

.points-section {
  padding: 64px 0;
  background: var(--card);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.point-card {
  background: var(--bg);
  border-radius: var(--radius);
  overflow: hidden;
  height: 100%;
  border: 1px solid rgba(226, 232, 240, 0.5);
  transition: all var(--transition);
}
.point-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}
.point-thumb {
  height: 180px;
  background-size: cover;
  background-position: center;
  position: relative;
}
.point-thumb::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 40%, rgba(19, 27, 51, 0.35) 100%);
}
.point-body { padding: 24px 26px 28px; }
.point-body .badge { margin-bottom: 12px; }
.point-body h3 {
  font-size: 19px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 10px;
  line-height: 1.4;
}
.point-body p {
  font-size: 14px;
  color: var(--text-weak);
  line-height: 1.75;
  margin-bottom: 16px;
}
.text-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 600;
  color: var(--accent);
  transition: all var(--transition);
}
.text-link:hover { color: var(--primary); gap: 10px; }

.journey-section {
  background: linear-gradient(135deg, var(--primary-dark), var(--primary-light));
  padding: 72px 0;
  color: #fff;
  position: relative;
  overflow: hidden;
}
.journey-section::before {
  content: '';
  position: absolute;
  top: -50px;
  right: -50px;
  width: 260px;
  height: 260px;
  border-radius: 50%;
  border: 2px solid rgba(255, 255, 255, 0.08);
}
.journey-section::after {
  content: '';
  position: absolute;
  bottom: -80px;
  left: -30px;
  width: 320px;
  height: 320px;
  border-radius: 50%;
  border: 2px solid rgba(255, 255, 255, 0.06);
}
.journey-section .section-head-light h2 { color: #fff; }
.journey-section .section-head-light p { color: rgba(255, 255, 255, 0.7); }
.journey-section .section-tag { background: rgba(255, 255, 255, 0.12); color: var(--accent-light); }
.journey-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
  position: relative;
  z-index: 1;
}
.journey-step {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius);
  padding: 28px 24px;
  backdrop-filter: blur(8px);
  transition: all var(--transition);
  position: relative;
}
.journey-step:hover {
  background: rgba(255, 255, 255, 0.12);
  transform: translateY(-4px);
  border-color: rgba(255, 255, 255, 0.2);
}
.step-num {
  font-size: 15px;
  font-weight: 800;
  color: var(--accent);
  letter-spacing: 2px;
  margin-bottom: 16px;
  background: rgba(245, 158, 11, 0.15);
  display: inline-flex;
  padding: 4px 14px;
  border-radius: 50px;
}
.journey-step h4 {
  font-size: 17px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 8px;
}
.journey-step p {
  font-size: 13px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.65);
  margin-bottom: 0;
}
.step-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  color: var(--accent-light);
  margin-bottom: 18px;
}

.related-section {
  padding: 64px 0;
  background: var(--bg);
}
.related-card {
  background: var(--card);
  border-radius: var(--radius);
  overflow: hidden;
  height: 100%;
  box-shadow: var(--shadow-sm);
  border: 1px solid rgba(226, 232, 240, 0.5);
  transition: all var(--transition);
}
.related-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}
.related-thumb {
  height: 180px;
  background-size: cover;
  background-position: center;
}
.related-body { padding: 24px 26px 28px; }
.related-body .badge { margin-bottom: 12px; }
.related-body h3 {
  font-size: 17px;
  font-weight: 700;
  color: var(--primary);
  line-height: 1.45;
  margin-bottom: 10px;
  transition: color var(--transition);
}
.related-card-link:hover h3 { color: var(--accent); }
.related-body p {
  font-size: 14px;
  color: var(--text-weak);
  line-height: 1.7;
  margin-bottom: 0;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.faq-section {
  padding: 64px 0;
  background: var(--card);
}
.faq-list { max-width: 760px; margin: 0 auto; }
.faq-item {
  background: var(--bg);
  border-radius: var(--radius-sm);
  margin-bottom: 14px;
  border: 1px solid var(--border);
  transition: all var(--transition);
  overflow: hidden;
}
.faq-item:hover { border-color: #cbd5e1; }
.faq-item summary {
  padding: 20px 24px;
  font-size: 15px;
  font-weight: 600;
  color: var(--primary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  list-style: none;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary i {
  color: var(--accent);
  font-size: 14px;
  transition: transform var(--transition);
  flex-shrink: 0;
}
.faq-item[open] summary { border-bottom: 1px solid var(--border); background: #f8fafc; }
.faq-item[open] summary i { transform: rotate(180deg); }
.faq-item .faq-answer {
  padding: 18px 24px;
  font-size: 14px;
  color: var(--text-weak);
  line-height: 1.8;
}

.cta-section {
  padding: 72px 0;
  background: linear-gradient(135deg, rgba(19, 27, 51, 0.9), rgba(30, 42, 74, 0.8)), url('/assets/images/backpic/back-3.png') center/cover no-repeat;
  text-align: center;
  color: #fff;
  position: relative;
}
.cta-inner { max-width: 620px; margin: 0 auto; }
.cta-inner h2 {
  font-size: 34px;
  font-weight: 800;
  margin-bottom: 16px;
  letter-spacing: -0.5px;
}
.cta-inner p {
  font-size: 16px;
  color: rgba(255, 255, 255, 0.75);
  margin-bottom: 28px;
  line-height: 1.8;
}
.cta-buttons { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

.site-footer {
  background: var(--primary-dark);
  color: rgba(255, 255, 255, 0.7);
  padding: 56px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 40px;
}
.footer-brand .logo {
  font-size: 30px;
  color: #fff;
  margin-bottom: 16px;
  display: inline-block;
}
.footer-brand .logo span { color: var(--accent); }
.footer-brand p {
  font-size: 14px;
  line-height: 1.8;
  max-width: 360px;
}
.footer-col h4 {
  font-size: 14px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 18px;
  letter-spacing: 1px;
}
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.65);
  transition: all var(--transition);
}
.footer-col ul a:hover { color: var(--accent-light); padding-left: 4px; }
.footer-col ul a i { color: var(--accent); opacity: 0.7; }
.footer-bar {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 20px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  font-size: 13px;
}
.footer-bar i { color: var(--accent); }

@media (max-width: 1024px) {
  .menu-toggle { display: inline-flex; }
  .header-inner { flex-wrap: wrap; }
  .nav-tabs {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: #fff;
    border-radius: 0 0 var(--radius) var(--radius);
    box-shadow: var(--shadow-lg);
    flex-direction: column;
    padding: 16px;
    gap: 8px;
    margin-top: 10px;
    border: 1px solid var(--border);
  }
  .nav-tabs.open { display: flex; }
  .nav-tab { text-align: center; padding: 12px; }
  .header-cta { margin-left: auto; }
  .journey-steps { grid-template-columns: repeat(2, 1fr); }
  .article-card { padding: 32px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}
@media (max-width: 768px) {
  .article-hero { padding: 52px 0 48px; }
  .article-hero h1 { font-size: 30px; }
  .section-head h2 { font-size: 27px; }
  .article-body { padding: 32px 0 48px; }
  .article-card { padding: 24px; }
  .points-section { padding: 48px 0; }
  .journey-section { padding: 52px 0; }
  .journey-steps { grid-template-columns: 1fr 1fr; gap: 16px; }
  .journey-step { padding: 22px 18px; }
  .related-section { padding: 48px 0; }
  .faq-section { padding: 48px 0; }
  .cta-section { padding: 52px 0; }
  .cta-inner h2 { font-size: 28px; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .footer-bar { justify-content: center; text-align: center; }
}
@media (max-width: 520px) {
  .grid-container { padding-left: 16px; padding-right: 16px; }
  .header-inner { gap: 12px; }
  .logo { font-size: 24px; }
  .header-cta { display: none; }
  .article-hero h1 { font-size: 24px; }
  .breadcrumb { font-size: 12px; }
  .article-meta { gap: 10px; }
  .article-card { padding: 20px; }
  .article-content { font-size: 15px; }
  .journey-steps { grid-template-columns: 1fr; }
  .cta-buttons .btn { width: 100%; }
  .section-head h2 { font-size: 24px; }
  .point-thumb { height: 150px; }
}

/* roulang page: category1 */
:root {
            --primary: #1b3a5b;
            --primary-deep: #0e2440;
            --accent: #f5a623;
            --accent-2: #17b8c4;
            --bg: #f5f7fb;
            --bg-alt: #eef2f7;
            --surface: #ffffff;
            --text: #1e2a38;
            --muted: #64748b;
            --border: #dfe6ef;
            --radius-lg: 22px;
            --radius-md: 14px;
            --radius-sm: 8px;
            --shadow: 0 8px 30px rgba(15, 35, 70, .08);
            --shadow-lg: 0 20px 50px rgba(15, 35, 70, .16);
            --transition: all .3s cubic-bezier(.4, 0, .2, 1);
            --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
        }

        *, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
        html { scroll-behavior: smooth; }
        body { font-family: var(--font-family); background: var(--bg); color: var(--text); line-height: 1.7; -webkit-font-smoothing: antialiased; }
        a { text-decoration: none; color: inherit; transition: var(--transition); }
        img { max-width: 100%; display: block; }
        ul, ol { list-style: none; }
        button, input, textarea { font-family: inherit; font-size: inherit; }

        .grid-container { max-width: 1200px; padding-left: 24px; padding-right: 24px; }

        /* ========== Header ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, .92);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 4px 20px rgba(0, 0, 0, .04);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            padding: 16px 0;
            gap: 12px 24px;
        }
        .logo {
            font-size: 32px;
            font-weight: 800;
            color: var(--primary-deep);
            letter-spacing: -1px;
            line-height: 1;
            white-space: nowrap;
        }
        .logo span { color: var(--accent); }
        .nav-tabs {
            display: flex;
            align-items: center;
            gap: 6px;
            background: #f1f4f9;
            padding: 6px;
            border-radius: 40px;
            border: 1px solid var(--border);
        }
        .nav-tab {
            padding: 8px 22px;
            border-radius: 30px;
            font-size: 15px;
            font-weight: 600;
            color: var(--muted);
            white-space: nowrap;
        }
        .nav-tab:hover { color: var(--primary); background: rgba(27, 58, 91, .06); }
        .nav-tab.active {
            background: var(--primary-deep);
            color: #fff;
            box-shadow: 0 4px 14px rgba(14, 36, 64, .28);
        }
        .header-cta { white-space: nowrap; }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 26px;
            border-radius: 50px;
            font-size: 15px;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            line-height: 1.4;
        }
        .btn-primary {
            background: var(--primary-deep);
            color: #fff;
            box-shadow: 0 8px 20px rgba(14, 36, 64, .2);
        }
        .btn-primary:hover { background: var(--primary); transform: translateY(-2px); box-shadow: 0 12px 24px rgba(14, 36, 64, .3); }
        .btn-light {
            background: #fff;
            color: var(--primary-deep);
            box-shadow: 0 8px 24px rgba(0, 0, 0, .15);
        }
        .btn-light:hover { background: var(--accent); color: var(--primary-deep); transform: translateY(-2px); }
        .btn-outline-light {
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255, 255, 255, .6);
        }
        .btn-outline-light:hover { background: #fff; color: var(--primary-deep); transform: translateY(-2px); border-color: #fff; }

        /* ========== Page Banner ========== */
        .page-banner {
            position: relative;
            padding: 150px 0 110px;
            background:
                linear-gradient(135deg, rgba(11, 22, 34, .92) 0%, rgba(14, 36, 64, .82) 55%, rgba(23, 184, 196, .32) 100%),
                url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            color: #fff;
            text-align: center;
            overflow: hidden;
        }
        .page-banner::after {
            content: '';
            position: absolute;
            left: 0;
            right: 0;
            bottom: 0;
            height: 90px;
            background: linear-gradient(transparent, var(--bg));
            pointer-events: none;
        }
        .banner-inner {
            position: relative;
            z-index: 2;
            max-width: 800px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .breadcrumb {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 500;
            background: rgba(255, 255, 255, .15);
            padding: 6px 18px;
            border-radius: 30px;
            margin-bottom: 26px;
            backdrop-filter: blur(8px);
            color: rgba(255, 255, 255, .85);
        }
        .breadcrumb a { color: rgba(255, 255, 255, .8); }
        .breadcrumb a:hover { color: #fff; }
        .breadcrumb i { font-size: 10px; opacity: .6; }
        .banner-title {
            font-size: 52px;
            line-height: 1.18;
            font-weight: 800;
            margin-bottom: 22px;
            letter-spacing: -1px;
        }
        .banner-title .highlight { color: var(--accent); position: relative; }
        .banner-subtitle {
            font-size: 17px;
            line-height: 1.9;
            color: rgba(255, 255, 255, .88);
            margin-bottom: 38px;
            max-width: 640px;
            margin-left: auto;
            margin-right: auto;
        }
        .banner-actions {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
        }

        /* ========== Stats ========== */
        .stats-section {
            position: relative;
            z-index: 5;
            margin-top: -64px;
            padding-bottom: 30px;
        }
        .stats-card {
            background: var(--surface);
            border-radius: 24px;
            box-shadow: var(--shadow-lg);
            padding: 42px 36px;
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            border: 1px solid rgba(255, 255, 255, .7);
        }
        .stat-item {
            text-align: center;
            border-right: 1px solid var(--border);
            padding: 0 20px;
        }
        .stat-item:last-child { border-right: none; }
        .stat-number {
            font-size: 42px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
            letter-spacing: -1px;
        }
        .stat-number small {
            font-size: 18px;
            color: var(--accent);
            font-weight: 700;
            margin-left: 2px;
        }
        .stat-label {
            color: var(--muted);
            font-size: 14px;
            margin-top: 6px;
            font-weight: 500;
        }

        /* ========== Sections common ========== */
        .section { padding: 96px 0; }
        .section-alt { background: var(--bg-alt); }
        .section-header { text-align: center; max-width: 680px; margin: 0 auto 60px; }
        .section-eyebrow {
            display: inline-block;
            padding: 6px 18px;
            border-radius: 30px;
            background: rgba(27, 58, 91, .08);
            color: var(--primary);
            font-size: 13px;
            font-weight: 700;
            letter-spacing: .06em;
            margin-bottom: 16px;
        }
        .section-title {
            font-size: 36px;
            font-weight: 800;
            line-height: 1.3;
            margin-bottom: 16px;
            color: var(--primary-deep);
            letter-spacing: -.5px;
        }
        .section-subtitle {
            color: var(--muted);
            font-size: 16px;
            line-height: 1.8;
        }

        /* ========== Scene Cards ========== */
        .scene-card {
            background: var(--surface);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            transition: var(--transition);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .scene-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(27, 58, 91, .2);
        }
        .scene-img {
            height: 190px;
            overflow: hidden;
            position: relative;
        }
        .scene-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .6s ease;
        }
        .scene-card:hover .scene-img img { transform: scale(1.06); }
        .scene-img::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(transparent 42%, rgba(0, 0, 0, .38));
        }
        .scene-tag {
            position: absolute;
            top: 14px;
            left: 14px;
            background: rgba(255, 255, 255, .92);
            color: var(--primary-deep);
            padding: 5px 14px;
            border-radius: 30px;
            font-size: 12px;
            font-weight: 700;
            z-index: 2;
            backdrop-filter: blur(8px);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .scene-tag i { color: var(--accent); font-size: 11px; }
        .scene-content {
            padding: 24px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .scene-content h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--primary-deep);
        }
        .scene-content p {
            color: var(--muted);
            font-size: 14px;
            line-height: 1.75;
            margin-bottom: 18px;
            flex: 1;
        }
        .scene-link {
            color: var(--primary);
            font-weight: 600;
            font-size: 14px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .scene-link i { transition: transform .3s ease; font-size: 12px; }
        .scene-link:hover { color: var(--accent); }
        .scene-link:hover i { transform: translateX(4px); }

        /* ========== Path Section ========== */
        .path-section {
            background: var(--primary-deep);
            padding: 96px 0;
            position: relative;
            overflow: hidden;
        }
        .path-section::before {
            content: '';
            position: absolute;
            top: -120px;
            right: -120px;
            width: 380px;
            height: 380px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(23, 184, 196, .16), transparent 70%);
        }
        .path-section .section-title { color: #fff; }
        .path-section .section-subtitle { color: rgba(255, 255, 255, .7); }
        .path-section .section-eyebrow { background: rgba(255, 255, 255, .1); color: var(--accent); }
        .path-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 40px;
            position: relative;
            z-index: 2;
            margin-top: 20px;
        }
        .path-step { text-align: center; position: relative; }
        .path-step::before {
            content: '';
            position: absolute;
            top: 36px;
            left: calc(-50% + 42px);
            width: calc(100% - 84px);
            border-top: 2px dashed rgba(255, 255, 255, .18);
        }
        .path-step:first-child::before { display: none; }
        .step-node {
            width: 72px;
            height: 72px;
            margin: 0 auto 22px;
            border-radius: 22px;
            background: rgba(255, 255, 255, .1);
            border: 1px solid rgba(255, 255, 255, .18);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 26px;
            color: var(--accent);
            position: relative;
            z-index: 2;
            backdrop-filter: blur(8px);
            transition: var(--transition);
        }
        .path-step:hover .step-node {
            background: var(--accent);
            color: var(--primary-deep);
            transform: translateY(-4px);
            box-shadow: 0 12px 28px rgba(245, 166, 35, .4);
        }
        .step-index {
            display: inline-block;
            padding: 4px 14px;
            border-radius: 30px;
            background: rgba(23, 184, 196, .16);
            color: var(--accent-2);
            font-size: 12px;
            font-weight: 700;
            letter-spacing: .08em;
            margin-bottom: 12px;
        }
        .path-step h3 {
            color: #fff;
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 10px;
        }
        .path-step p {
            color: rgba(255, 255, 255, .62);
            font-size: 14px;
            line-height: 1.7;
            max-width: 220px;
            margin: 0 auto;
        }

        /* ========== Content List ========== */
        .content-list-wrap { max-width: 880px; margin: 0 auto; }
        .content-item {
            display: flex;
            align-items: center;
            gap: 24px;
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: 16px;
            padding: 20px 26px;
            margin-bottom: 16px;
            transition: var(--transition);
        }
        .content-item:hover {
            box-shadow: var(--shadow);
            transform: translateX(6px);
            border-color: rgba(27, 58, 91, .14);
        }
        .content-num {
            font-size: 26px;
            font-weight: 800;
            color: var(--border);
            min-width: 48px;
            transition: var(--transition);
            font-family: Georgia, "Times New Roman", serif;
            line-height: 1;
        }
        .content-item:hover .content-num { color: var(--accent); }
        .content-body { flex: 1; }
        .content-body h4 {
            font-size: 17px;
            font-weight: 700;
            color: var(--primary-deep);
            margin-bottom: 4px;
        }
        .content-body p {
            font-size: 14px;
            color: var(--muted);
            line-height: 1.6;
        }
        .content-meta {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .badge {
            display: inline-block;
            padding: 4px 12px;
            border-radius: 30px;
            font-size: 12px;
            font-weight: 600;
            background: rgba(23, 184, 196, .12);
            color: #0e8a96;
            white-space: nowrap;
        }
        .badge-tool { background: rgba(245, 166, 35, .14); color: #b57210; }
        .badge-guide { background: rgba(27, 58, 91, .08); color: var(--primary); }
        .content-arrow {
            width: 36px;
            height: 36px;
            min-width: 36px;
            border-radius: 50%;
            background: #f1f4f9;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 14px;
            transition: var(--transition);
        }
        .content-item:hover .content-arrow {
            background: var(--primary-deep);
            color: #fff;
            transform: rotate(-45deg);
        }

        /* ========== FAQ ========== */
        .faq-wrap { max-width: 880px; margin: 0 auto; }
        .faq-item {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: 14px;
            margin-bottom: 14px;
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item[open] {
            box-shadow: var(--shadow);
            border-color: rgba(27, 58, 91, .12);
        }
        .faq-item summary {
            padding: 20px 28px;
            font-weight: 700;
            font-size: 16px;
            color: var(--primary-deep);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            list-style: none;
        }
        .faq-item summary::-webkit-details-marker { display: none; }
        .faq-item summary::after {
            content: '+';
            width: 32px;
            height: 32px;
            min-width: 32px;
            border-radius: 50%;
            background: #f1f4f9;
            color: var(--primary);
            font-size: 18px;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: var(--transition);
        }
        .faq-item[open] summary::after {
            content: '-';
            background: var(--primary-deep);
            color: #fff;
        }
        .faq-answer {
            padding: 0 28px 24px;
            color: var(--muted);
            font-size: 15px;
            line-height: 1.8;
            border-top: 1px solid var(--border);
            padding-top: 18px;
        }

        /* ========== CTA ========== */
        .cta-box {
            position: relative;
            background:
                linear-gradient(120deg, rgba(11, 22, 34, .93) 0%, rgba(14, 36, 64, .86) 55%, rgba(23, 184, 196, .35) 100%),
                url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            border-radius: 28px;
            padding: 70px 50px;
            text-align: center;
            color: #fff;
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }
        .cta-box::before {
            content: '';
            position: absolute;
            top: -60px;
            left: -60px;
            width: 220px;
            height: 220px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(245, 166, 35, .28), transparent 70%);
        }
        .cta-box h2 {
            font-size: 34px;
            font-weight: 800;
            margin-bottom: 16px;
            position: relative;
            z-index: 2;
            letter-spacing: -.5px;
        }
        .cta-box p {
            font-size: 17px;
            color: rgba(255, 255, 255, .76);
            max-width: 560px;
            margin: 0 auto 36px;
            position: relative;
            z-index: 2;
            line-height: 1.8;
        }
        .cta-actions {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
            position: relative;
            z-index: 2;
        }

        /* ========== Footer ========== */
        .site-footer {
            background: var(--primary-deep);
            color: rgba(255, 255, 255, .78);
            padding: 70px 0 30px;
            position: relative;
            overflow: hidden;
        }
        .site-footer::before {
            content: '';
            position: absolute;
            bottom: -100px;
            left: 30%;
            width: 420px;
            height: 420px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(23, 184, 196, .1), transparent 65%);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr;
            gap: 50px;
            position: relative;
            z-index: 2;
        }
        .footer-brand .logo {
            color: #fff;
            font-size: 30px;
            margin-bottom: 16px;
            display: inline-block;
        }
        .footer-brand .logo span { color: var(--accent); }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, .6);
            max-width: 360px;
        }
        .footer-col h4 {
            color: #fff;
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 20px;
        }
        .footer-col ul li { margin-bottom: 10px; }
        .footer-col ul a {
            color: rgba(255, 255, 255, .65);
            font-size: 14px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .footer-col ul a:hover { color: var(--accent); padding-left: 4px; }
        .footer-bar {
            border-top: 1px solid rgba(255, 255, 255, .08);
            margin-top: 54px;
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            gap: 16px;
            font-size: 13px;
            color: rgba(255, 255, 255, .45);
            flex-wrap: wrap;
            position: relative;
            z-index: 2;
        }
        .footer-bar i { color: var(--accent); margin: 0 2px; }

        /* ========== Responsive ========== */
        @media (max-width: 1024px) {
            .header-cta { display: none; }
            .nav-tabs {
                order: 3;
                width: 100%;
                justify-content: flex-start;
                overflow-x: auto;
                flex-wrap: nowrap;
                scrollbar-width: none;
            }
            .nav-tabs::-webkit-scrollbar { display: none; }
            .banner-title { font-size: 44px; }
            .section { padding: 80px 0; }
        }

        @media (max-width: 880px) {
            .stats-card { grid-template-columns: repeat(2, 1fr); }
            .stat-item:nth-child(2) { border-right: none; }
            .stat-item:nth-child(1),
            .stat-item:nth-child(2) {
                border-bottom: 1px solid var(--border);
                padding-bottom: 24px;
                margin-bottom: 24px;
            }
            .path-steps { grid-template-columns: repeat(2, 1fr); gap: 30px; }
            .path-step::before { display: none; }
            .footer-grid { grid-template-columns: 1fr; gap: 40px; }
            .content-item { flex-wrap: wrap; }
            .content-meta { width: 100%; justify-content: space-between; }
        }

        @media (max-width: 640px) {
            .header-inner { padding: 12px 0; }
            .logo { font-size: 26px; }
            .nav-tab { padding: 7px 16px; font-size: 14px; }
            .page-banner { padding: 110px 0 80px; }
            .banner-title { font-size: 32px; }
            .banner-subtitle { font-size: 15px; }
            .section { padding: 64px 0; }
            .section-title { font-size: 28px; }
            .section-header { margin-bottom: 40px; }
            .stats-card { padding: 24px 20px; gap: 10px; }
            .stat-item { padding: 0 12px; }
            .stat-number { font-size: 32px; }
            .stat-label { font-size: 13px; }
            .scene-content h3 { font-size: 18px; }
            .cta-box { padding: 50px 24px; }
            .cta-box h2 { font-size: 26px; }
            .cta-box p { font-size: 15px; }
            .content-item { padding: 16px 18px; gap: 16px; }
            .faq-item summary { padding: 16px 20px; font-size: 15px; }
            .faq-answer { padding: 0 20px 20px; font-size: 14px; }
            .footer-bar { flex-direction: column; text-align: center; }
        }

        @media (max-width: 520px) {
            .stats-card { grid-template-columns: 1fr 1fr; }
            .stat-item { border-right: none !important; border-bottom: 1px solid var(--border); padding: 0 8px 20px; margin-bottom: 20px; }
            .stat-item:nth-child(odd) { border-right: 1px solid var(--border) !important; }
            .stat-item:nth-child(3) { border-bottom: none !important; margin-bottom: 0; }
            .stat-item:nth-child(4) { border-bottom: none !important; margin-bottom: 0; }
            .path-steps { grid-template-columns: 1fr 1fr; }
            .step-node { width: 58px; height: 58px; font-size: 20px; border-radius: 18px; }
            .scene-img { height: 150px; }
            .badge { font-size: 11px; padding: 3px 10px; }
            .content-arrow { width: 32px; height: 32px; min-width: 32px; font-size: 12px; }
        }

/* roulang page: category2 */
:root{
  --brand:#0e7c7b;
  --brand-deep:#0a5c5b;
  --brand-soft:#e3f2f1;
  --accent:#f2a93b;
  --accent-deep:#d98d1f;
  --ink:#0d1b2e;
  --text:#293a4c;
  --muted:#64778a;
  --bg:#f4f7f9;
  --bg-soft:#eef3f6;
  --card:#ffffff;
  --line:#e3e9ef;
  --radius-lg:20px;
  --radius-md:14px;
  --radius-sm:9px;
  --shadow-sm:0 5px 16px rgba(13,27,46,.06);
  --shadow-md:0 14px 36px rgba(13,27,46,.09);
  --shadow-lg:0 26px 64px rgba(13,27,46,.13);
  --font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-family);
  color:var(--text);
  background:var(--bg);
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input,summary{font-family:inherit;}
h1,h2,h3,h4{color:var(--ink);line-height:1.3;margin:0 0 10px;}
p{margin:0 0 16px;}
ul{margin:0;padding:0;list-style:none;}
.container{max-width:1200px;margin:0 auto;padding:0 24px;}
.grid-container{max-width:1200px;}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 26px;border-radius:999px;font-weight:700;font-size:15px;
  border:2px solid transparent;cursor:pointer;transition:all .25s ease;line-height:1.3;
}
.btn-sm{padding:8px 18px;font-size:14px;}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 8px 20px rgba(14,124,123,.25);}
.btn-primary:hover{background:var(--brand-deep);transform:translateY(-2px);box-shadow:0 12px 28px rgba(14,124,123,.32);}
.btn-accent{background:var(--accent);color:#231b08;box-shadow:0 8px 20px rgba(242,169,59,.28);}
.btn-accent:hover{background:var(--accent-deep);color:#fff;transform:translateY(-2px);}
.btn-light{background:rgba(255,255,255,.96);color:var(--ink);border-color:rgba(255,255,255,.35);}
.btn-light:hover{background:#fff;transform:translateY(-2px);box-shadow:0 12px 26px rgba(0,0,0,.16);}
.btn-outline{border-color:rgba(255,255,255,.4);color:#fff;background:rgba(255,255,255,.06);}
.btn-outline:hover{background:rgba(255,255,255,.14);border-color:#fff;}
.btn:active{transform:translateY(0) scale(.98);}
.btn:focus-visible{outline:3px solid rgba(242,169,59,.55);outline-offset:3px;}

.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.88);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
  box-shadow:0 3px 14px rgba(13,27,46,.04);
}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;gap:24px;
  min-height:72px;flex-wrap:wrap;padding-top:10px;padding-bottom:10px;
}
.logo{font-size:27px;font-weight:800;color:var(--ink);letter-spacing:-.5px;line-height:1;}
.logo span{color:var(--accent);}
.logo:hover{opacity:.82;}
.nav-tabs{
  display:flex;align-items:center;gap:4px;
  background:#eef2f5;padding:5px;border-radius:999px;
}
.nav-tab{
  display:inline-flex;align-items:center;gap:6px;white-space:nowrap;
  padding:9px 20px;border-radius:999px;font-size:15px;font-weight:600;
  color:var(--muted);transition:all .25s ease;
}
.nav-tab:hover{color:var(--brand);background:rgba(255,255,255,.75);}
.nav-tab:focus-visible{outline:3px solid rgba(14,124,123,.35);outline-offset:2px;border-radius:999px;}
.nav-tab.active{background:var(--brand);color:#fff;box-shadow:0 6px 18px rgba(14,124,123,.3);}
.nav-tab.active:hover{color:#fff;background:var(--brand);}
.header-cta{flex-shrink:0;}

.page-hero{
  position:relative;background:var(--ink);color:#fff;
  padding:96px 0 104px;overflow:hidden;
}
.hero-bg{
  position:absolute;inset:0;
  background-image:linear-gradient(118deg,rgba(13,27,46,.9) 22%,rgba(13,27,46,.66)),url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
}
.hero-bg::after{
  content:'';position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.16) 1px,transparent 1px);
  background-size:26px 26px;opacity:.4;
}
.hero-content{position:relative;z-index:2;max-width:860px;}
.breadcrumb{
  display:flex;align-items:center;gap:10px;font-size:14px;
  color:rgba(255,255,255,.62);margin-bottom:22px;
}
.breadcrumb a{color:rgba(255,255,255,.62);transition:color .2s ease;}
.breadcrumb a:hover{color:#fff;}
.breadcrumb i{font-size:10px;color:rgba(255,255,255,.4);}
.hero-badge{
  display:inline-flex;align-items:center;gap:9px;
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.22);
  padding:8px 18px;border-radius:999px;font-size:14px;margin-bottom:22px;color:#fff;
}
.hero-badge i{color:var(--accent);}
.hero-content h1{color:#fff;font-size:46px;font-weight:800;letter-spacing:-1px;margin-bottom:18px;}
.hero-lead{font-size:18px;color:rgba(255,255,255,.82);max-width:660px;margin-bottom:30px;}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:34px;}
.hero-meta{display:flex;gap:22px;flex-wrap:wrap;color:rgba(255,255,255,.72);font-size:14px;}
.hero-meta span{display:inline-flex;align-items:center;gap:8px;}
.hero-meta span::before{
  content:'';width:6px;height:6px;border-radius:50%;background:var(--accent);
  box-shadow:0 0 0 3px rgba(242,169,59,.22);
}

.section{padding:88px 0;}
.section-light{background:var(--card);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section[id],.page-hero[id]{scroll-margin-top:92px;}
.section-head{text-align:center;max-width:700px;margin:0 auto 54px;}
.section-head.left{text-align:left;margin:0 0 42px;}
.section-eyebrow{
  display:inline-block;font-size:13px;font-weight:800;letter-spacing:2px;
  color:var(--brand);background:var(--brand-soft);
  padding:6px 16px;border-radius:999px;margin-bottom:16px;
}
.section-eyebrow.light{background:rgba(255,255,255,.16);color:#fff;}
.section-head h2{font-size:34px;font-weight:800;color:var(--ink);}
.section-head p{color:var(--muted);font-size:16px;margin-bottom:0;}

.cat-grid{row-gap:26px;}
.cat-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:30px 26px;height:100%;box-shadow:var(--shadow-sm);
  transition:all .3s ease;position:relative;overflow:hidden;
}
.cat-card::before{
  content:'';position:absolute;left:0;top:0;right:0;height:3px;
  background:linear-gradient(90deg,var(--brand),var(--accent));
  opacity:0;transition:opacity .3s ease;
}
.cat-card:hover{
  transform:translateY(-7px);box-shadow:var(--shadow-md);
  border-color:rgba(14,124,123,.28);
}
.cat-card:hover::before{opacity:1;}
.cat-icon{
  width:56px;height:56px;border-radius:16px;
  display:flex;align-items:center;justify-content:center;
  background:var(--brand-soft);color:var(--brand);
  font-size:23px;margin-bottom:20px;transition:all .3s ease;
}
.cat-card:hover .cat-icon{background:var(--brand);color:#fff;transform:rotate(-6deg) scale(1.05);}
.cat-card h3{font-size:19px;font-weight:700;margin-bottom:8px;}
.cat-card p{font-size:15px;color:var(--muted);margin-bottom:16px;}
.chip{
  display:inline-block;background:var(--bg-soft);border:1px solid var(--line);
  color:var(--text);border-radius:999px;padding:5px 14px;
  font-size:13px;font-weight:600;
}
.cat-card:hover .chip{border-color:rgba(14,124,123,.3);color:var(--brand);}

.stats-section{
  position:relative;padding:72px 0;background:var(--ink);overflow:hidden;
}
.stats-bg{
  position:absolute;inset:0;
  background-image:linear-gradient(rgba(13,27,46,.85),rgba(13,27,46,.66)),url('/assets/images/backpic/back-3.png');
  background-size:cover;background-position:center;
}
.stats-bg::after{
  content:'';position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.1) 1px,transparent 1px);
  background-size:22px 22px;opacity:.5;
}
.stats-section .grid-container{position:relative;z-index:2;}
.stat-card{
  text-align:center;background:rgba(255,255,255,.07);
  border:1px solid rgba(255,255,255,.16);border-radius:var(--radius-lg);
  padding:34px 18px;margin-bottom:20px;backdrop-filter:blur(6px);
  transition:all .3s ease;
}
.stat-card:hover{background:rgba(255,255,255,.12);transform:translateY(-4px);border-color:rgba(242,169,59,.45);}
.stat-num{
  display:block;font-size:44px;font-weight:800;line-height:1.1;color:var(--accent);
  letter-spacing:-1px;
}
.stat-label{display:block;margin-top:10px;color:rgba(255,255,255,.8);font-size:15px;font-weight:600;}

.resource-list{max-width:940px;margin:0 auto;}
.resource-item{
  display:flex;gap:26px;align-items:center;
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:24px 26px 24px 20px;margin-bottom:18px;box-shadow:var(--shadow-sm);
  transition:all .3s ease;
}
.resource-item:hover{
  transform:translateX(6px);box-shadow:var(--shadow-md);
  border-color:rgba(14,124,123,.3);
}
.res-num{
  min-width:46px;font-size:32px;font-weight:800;color:var(--brand);opacity:.35;
  line-height:1;text-align:center;
}
.res-thumb{
  width:136px;height:98px;border-radius:var(--radius-md);
  object-fit:cover;box-shadow:var(--shadow-sm);flex-shrink:0;
  border:1px solid var(--line);
}
.res-body{flex:1;min-width:0;}
.res-tags{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:9px;}
.tag{
  display:inline-block;background:var(--brand-soft);color:var(--brand);
  border-radius:6px;padding:3px 10px;font-size:12px;font-weight:700;
}
.res-body h3{font-size:20px;font-weight:700;margin-bottom:6px;}
.res-body p{font-size:14px;color:var(--muted);margin-bottom:10px;}
.res-link{
  display:inline-flex;align-items:center;gap:7px;
  color:var(--brand);font-weight:700;font-size:14px;
  transition:color .2s ease;
}
.res-link i{transition:transform .25s ease;}
.res-link:hover{color:var(--brand-deep);}
.res-link:hover i{transform:translateX(5px);}

.flow-section{
  position:relative;background:var(--ink);padding:96px 0;overflow:hidden;
}
.flow-section::before{
  content:'';position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.09) 1px,transparent 1px);
  background-size:22px 22px;
}
.flow-section .grid-container{position:relative;z-index:2;}
.flow-section .section-head h2{color:#fff;}
.flow-section .section-head p{color:rgba(255,255,255,.65);}
.flow-section .section-eyebrow{background:rgba(255,255,255,.14);color:#fff;}
.flow-steps{
  position:relative;display:grid;grid-template-columns:repeat(4,1fr);gap:24px;
}
.flow-steps::before{
  content:'';position:absolute;top:32px;left:10%;right:10%;
  height:2px;background:rgba(255,255,255,.14);
}
.flow-step{
  background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.13);
  border-radius:var(--radius-lg);padding:32px 22px;text-align:center;
  transition:all .3s ease;position:relative;
}
.flow-step:hover{
  background:rgba(255,255,255,.1);transform:translateY(-6px);
  border-color:rgba(242,169,59,.5);
}
.step-dot{
  width:60px;height:60px;border-radius:50%;margin:0 auto 18px;
  background:linear-gradient(135deg,var(--brand),#17a79e);
  color:#fff;display:flex;align-items:center;justify-content:center;
  font-size:23px;font-weight:800;border:4px solid rgba(255,255,255,.18);
  box-shadow:0 10px 24px rgba(14,124,123,.35);
}
.flow-step h3{color:#fff;font-size:18px;font-weight:700;margin-bottom:8px;}
.flow-step p{color:rgba(255,255,255,.64);font-size:14px;margin:0;}

.faq-list{max-width:830px;margin:0 auto;}
.faq-item{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-md);
  margin-bottom:14px;overflow:hidden;transition:all .25s ease;
}
.faq-item:hover{border-color:rgba(14,124,123,.35);box-shadow:var(--shadow-sm);}
.faq-item summary{
  padding:20px 26px;cursor:pointer;font-weight:700;color:var(--ink);
  font-size:16px;list-style:none;display:flex;align-items:center;
  justify-content:space-between;gap:16px;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:'\f067';font-family:'Font Awesome 6 Free';font-weight:900;
  color:var(--brand);font-size:14px;flex-shrink:0;
  transition:all .25s ease;
}
.faq-item[open] summary::after{content:'\f068';transform:rotate(180deg);}
.faq-body{padding:0 26px 22px;color:var(--muted);font-size:15px;}
.faq-body p{margin-bottom:0;}

.cta-section{padding:92px 0;}
.cta-box{
  position:relative;border-radius:26px;overflow:hidden;
  background:linear-gradient(120deg,var(--brand-deep),var(--brand) 58%,#16a29a);
  padding:70px 48px 66px;text-align:center;box-shadow:var(--shadow-lg);
}
.cta-box::before{
  content:'';position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;opacity:.18;mix-blend-mode:overlay;
}
.cta-box::after{
  content:'';position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.14) 1px,transparent 1px);
  background-size:24px 24px;opacity:.4;
}
.cta-content{position:relative;z-index:2;max-width:650px;margin:0 auto;}
.cta-content h2{color:#fff;font-size:32px;font-weight:800;margin-bottom:14px;}
.cta-content p{color:rgba(255,255,255,.86);font-size:16px;margin-bottom:26px;}
.cta-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;}

.site-footer{
  background:var(--ink);color:rgba(255,255,255,.72);
  padding:64px 0 0;
}
.footer-grid{
  display:grid;grid-template-columns:2fr 1fr 1fr;gap:52px;
  padding-bottom:40px;
}
.footer-brand .logo{color:#fff;font-size:28px;}
.footer-brand p{
  max-width:380px;font-size:14px;color:rgba(255,255,255,.58);
  margin-top:16px;line-height:1.9;
}
.footer-col h4{color:#fff;font-size:16px;font-weight:700;margin-bottom:18px;}
.footer-col ul li{margin-bottom:11px;}
.footer-col a{
  display:inline-flex;align-items:center;gap:8px;
  font-size:14px;color:rgba(255,255,255,.7);transition:all .2s ease;
}
.footer-col a i{color:rgba(255,255,255,.35);transition:all .2s ease;}
.footer-col a:hover{color:var(--accent);padding-left:3px;}
.footer-col a:hover i{color:var(--accent);}
.footer-bar{
  border-top:1px solid rgba(255,255,255,.1);
  padding:22px 0;display:flex;justify-content:space-between;gap:14px;
  flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.5);
}
.footer-bar i{color:var(--accent);margin-right:2px;}

@media (max-width:1024px){
  .hero-content h1{font-size:38px;}
  .section{padding:72px 0;}
  .flow-steps{grid-template-columns:repeat(2,1fr);gap:20px;}
  .flow-steps::before{display:none;}
  .flow-step{margin-bottom:10px;}
  .footer-grid{gap:34px;}
}
@media (max-width:768px){
  .header-inner{gap:14px;}
  .nav-tabs{order:3;width:100%;justify-content:flex-start;overflow-x:auto;flex-wrap:nowrap;-webkit-overflow-scrolling:touch;scrollbar-width:none;}
  .nav-tabs::-webkit-scrollbar{display:none;}
  .nav-tab{padding:8px 16px;font-size:14px;}
  .header-cta{display:none;}
  .page-hero{padding:74px 0 80px;}
  .hero-content h1{font-size:32px;}
  .hero-lead{font-size:16px;}
  .section{padding:62px 0;}
  .section-head{margin-bottom:40px;}
  .section-head h2{font-size:28px;}
  .resource-item{flex-wrap:wrap;gap:18px;}
  .res-num{min-width:36px;font-size:26px;}
  .res-thumb{width:100%;height:170px;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .cta-box{padding:52px 26px 50px;}
  .cta-content h2{font-size:27px;}
}
@media (max-width:520px){
  .header-inner{padding-top:9px;padding-bottom:9px;}
  .logo{font-size:24px;}
  .nav-tab{padding:7px 13px;font-size:13px;}
  .page-hero{padding:62px 0 68px;}
  .hero-content h1{font-size:27px;letter-spacing:-.5px;}
  .hero-badge{font-size:13px;padding:6px 14px;}
  .hero-actions .btn{width:100%;}
  .hero-meta{gap:14px 18px;font-size:13px;}
  .section{padding:54px 0;}
  .section-head h2{font-size:25px;}
  .cat-card{padding:24px 20px;}
  .flow-steps{grid-template-columns:1fr;}
  .stat-num{font-size:38px;}
  .resource-item{padding:18px;}
  .faq-item summary{font-size:15px;padding:17px 18px;}
  .faq-body{padding:0 18px 18px;}
  .cta-box{padding:44px 22px 42px;}
  .cta-content h2{font-size:24px;}
  .cta-actions .btn{width:100%;}
  .footer-bar{flex-direction:column;text-align:center;}
}