/* roulang page: index */
:root {
    --brand: #2D6CDF;
    --brand-dark: #1E56C6;
    --brand-light: #E4F0FE;
    --neon: #28D8FF;
    --dark: #0F1B2D;
    --bg: #F2F6FA;
    --card: #FFFFFF;
    --ink: #1E2B3C;
    --sub: #5B6B7B;
    --muted: #9AA8B4;
    --border: #E2EAF2;
    --shadow: 0 2px 12px rgba(30,43,60,0.06);
    --shadow-hover: 0 8px 24px rgba(30,43,60,0.10);
  }

  * { box-sizing: border-box; margin: 0; padding: 0; }
  html { scroll-behavior: smooth; }
  body {
    font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
    background: var(--bg);
    color: var(--ink);
    line-height: 1.75;
    font-size: 15px;
  }
  img { max-width: 100%; display: block; }
  a { text-decoration: none; color: inherit; transition: all 0.2s ease; }
  button { font-family: inherit; }
  .container {
    max-width: 1180px;
    margin: 0 auto;
    padding-left: 20px;
    padding-right: 20px;
  }

  /* ===== 霓虹导航 ===== */
  .neon-nav {
    background: #0F1B2D;
    border-top: 3px solid transparent;
    border-image: linear-gradient(90deg, transparent 5%, #28D8FF 50%, transparent 95%) 1;
    position: sticky;
    top: 0;
    z-index: 100;
  }
  .neon-nav .nav-link {
    color: #C9D6E3;
    font-weight: 500;
    font-size: 15px;
    padding: 8px 16px;
    border-radius: 8px;
    position: relative;
    transition: color 0.2s ease;
  }
  .neon-nav .nav-link:hover {
    color: #E2F8FF;
    background: rgba(40,216,255,0.08);
  }
  .neon-nav .nav-link.active {
    color: #28D8FF;
    text-shadow: 0 0 8px rgba(40,216,255,0.6);
  }
  .neon-nav .nav-link.active::after {
    content: '';
    position: absolute;
    bottom: 2px;
    left: 16px;
    right: 16px;
    height: 2px;
    background: #28D8FF;
    box-shadow: 0 0 8px rgba(40,216,255,0.6);
    border-radius: 2px;
  }
  .nav-cta {
    background: #28D8FF;
    color: #0F1B2D;
    font-weight: 600;
    padding: 8px 22px;
    border-radius: 10px;
    font-size: 15px;
    transition: all 0.2s ease;
  }
  .nav-cta:hover {
    background: #5BE3FF;
    box-shadow: 0 0 16px rgba(40,216,255,0.5);
  }
  .menu-toggle {
    background: none;
    border: none;
    color: #28D8FF;
    font-size: 24px;
    cursor: pointer;
    padding: 8px;
    display: none;
  }
  .mobile-menu {
    display: none;
    background: #0F1B2D;
    border-top: 1px solid rgba(255,255,255,0.06);
    padding: 10px 20px 20px;
  }
  .mobile-menu a {
    display: block;
    color: #C9D6E3;
    padding: 12px 8px;
    border-bottom: 1px solid rgba(255,255,255,0.04);
    font-size: 15px;
  }
  .mobile-menu a.active { color: #28D8FF; }
  .mobile-menu .nav-cta-m {
    display: inline-block;
    margin-top: 14px;
    background: #28D8FF;
    color: #0F1B2D;
    font-weight: 600;
    padding: 10px 28px;
    border-radius: 10px;
    border: none;
  }

  @media (max-width: 1024px) {
    .desktop-menu { display: none; }
    .menu-toggle { display: block; }
    .desktop-cta { display: none; }
  }
  @media (min-width: 1025px) {
    .mobile-menu, .menu-toggle { display: none !important; }
  }

  /* ===== Hero ===== */
  .hero {
    background-color: #0F1B2D;
    background-image: linear-gradient(rgba(15,27,45,0.55), rgba(15,27,45,0.65)), url('/assets/images/backpic/back-1.webp');
    background-size: cover;
    background-position: center;
    min-height: 460px;
    display: flex;
    align-items: center;
    position: relative;
  }
  @media (max-width: 768px) {
    .hero { min-height: 380px; }
  }
  @media (max-width: 520px) {
    .hero { min-height: 320px; }
  }
  .hero h1 {
    font-size: 42px;
    font-weight: 800;
    color: #fff;
    letter-spacing: -0.02em;
    line-height: 1.2;
  }
  .hero .subtitle {
    color: #AEBFD0;
    font-size: 17px;
    letter-spacing: 0.02em;
  }
  @media (max-width: 768px) {
    .hero h1 { font-size: 32px; }
    .hero .subtitle { font-size: 15px; }
  }
  .hero-cta {
    background: #28D8FF;
    color: #0F1B2D;
    font-weight: 600;
    font-size: 16px;
    padding: 14px 32px;
    border-radius: 10px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: all 0.2s ease;
  }
  .hero-cta:hover {
    background: #5BE3FF;
    box-shadow: 0 0 20px rgba(40,216,255,0.45);
    color: #0F1B2D;
  }
  .hero-ghost {
    background: transparent;
    color: #DCE8F1;
    border: 1.5px solid rgba(255,255,255,0.35);
    font-weight: 500;
    font-size: 16px;
    padding: 13px 28px;
    border-radius: 10px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: all 0.2s ease;
  }
  .hero-ghost:hover {
    border-color: #28D8FF;
    color: #28D8FF;
    background: rgba(40,216,255,0.06);
  }

  /* ===== 区块标题 ===== */
  .section-title {
    font-size: 30px;
    font-weight: 700;
    color: #1E2B3C;
    letter-spacing: -0.01em;
    line-height: 1.3;
  }
  .section-sub {
    color: #5B6B7B;
    font-size: 16px;
    margin-top: 8px;
  }
  @media (max-width: 768px) {
    .section-title { font-size: 24px; }
  }

  /* ===== 卡片 ===== */
  .t-card {
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 2px 12px rgba(30,43,60,0.06);
    transition: all 0.2s ease;
  }
  .t-card:hover {
    box-shadow: 0 8px 24px rgba(30,43,60,0.10);
    transform: translateY(-4px);
  }

  /* ===== 主按钮 ===== */
  .btn-primary {
    background: #2D6CDF;
    color: #fff;
    font-weight: 600;
    font-size: 15px;
    padding: 12px 28px;
    border-radius: 10px;
    border: none;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: all 0.2s ease;
  }
  .btn-primary:hover {
    background: #1E56C6;
    box-shadow: 0 4px 16px rgba(29,78,216,0.3);
  }
  .btn-primary:focus {
    outline: 3px solid rgba(45,108,223,0.3);
  }
  .btn-ghost {
    background: transparent;
    border: 1.5px solid #2D6CDF;
    color: #2D6CDF;
    font-weight: 600;
    font-size: 15px;
    padding: 11px 26px;
    border-radius: 10px;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: all 0.2s ease;
  }
  .btn-ghost:hover {
    background: #E4F0FE;
  }

  /* ===== 统计数字 ===== */
  .stat-num {
    font-size: 42px;
    font-weight: 700;
    color: #2D6CDF;
    font-variant-numeric: tabular-nums;
    line-height: 1.1;
  }
  @media (max-width: 768px) {
    .stat-num { font-size: 32px; }
  }

  /* ===== 资讯卡 ===== */
  .news-card {
    display: flex;
    align-items: center;
    gap: 18px;
    background: #fff;
    border-radius: 12px;
    padding: 16px 18px;
    box-shadow: 0 2px 12px rgba(30,43,60,0.04);
    transition: all 0.2s ease;
    border: 1px solid #EDF2F7;
  }
  .news-card:hover {
    box-shadow: 0 8px 24px rgba(30,43,60,0.10);
    border-color: #D5E2F0;
    transform: translateY(-2px);
  }
  .news-tag {
    display: inline-block;
    background: #E4F0FE;
    color: #2D6CDF;
    font-size: 12px;
    font-weight: 500;
    padding: 3px 12px;
    border-radius: 999px;
    white-space: nowrap;
  }
  .news-time {
    color: #9AA8B4;
    font-size: 13px;
    white-space: nowrap;
  }
  @media (max-width: 520px) {
    .news-card { flex-wrap: wrap; }
    .news-thumb { width: 100% !important; height: 120px !important; }
  }

  /* ===== 步骤连接线 ===== */
  .step-wrap { position: relative; }
  .step-connector {
    position: absolute;
    top: 56px;
    left: calc(50% + 60px);
    width: calc(100% - 120px);
    border-top: 2px dashed #C5D4E6;
    z-index: 0;
  }
  @media (max-width: 1024px) {
    .step-connector { display: none; }
  }
  .step-num {
    font-size: 48px;
    font-weight: 700;
    color: #28D8FF;
    line-height: 1;
    letter-spacing: -0.02em;
    text-shadow: 0 0 12px rgba(40,216,255,0.4);
  }
  .step-card {
    position: relative;
    z-index: 1;
  }

  /* ===== FAQ ===== */
  .faq-item {
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 2px 12px rgba(30,43,60,0.04);
    border: 1px solid #EDF2F7;
    overflow: hidden;
    transition: box-shadow 0.2s ease;
  }
  .faq-item:hover {
    box-shadow: 0 4px 16px rgba(30,43,60,0.08);
  }
  .faq-question {
    width: 100%;
    background: #fff;
    border: none;
    padding: 18px 22px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 16px;
    font-weight: 600;
    color: #1E2B3C;
    cursor: pointer;
    transition: background 0.2s;
  }
  .faq-question:hover { background: #F7FAFC; }
  .faq-icon {
    color: #2D6CDF;
    font-size: 16px;
    transition: transform 0.3s ease;
    flex-shrink: 0;
    margin-left: 12px;
  }
  .faq-item.active .faq-icon { transform: rotate(45deg); }
  .faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s ease;
  }
  .faq-answer-inner {
    padding: 0 22px 18px;
    color: #5B6B7B;
    font-size: 15px;
    line-height: 1.7;
  }

  /* ===== CTA 区 ===== */
  .cta-section {
    background: #0F1B2D;
    background-image: linear-gradient(135deg, rgba(45,108,223,0.2), transparent 50%), url('/assets/images/backpic/back-2.png');
    background-size: cover;
    background-position: center;
    padding: 80px 0;
  }
  .cta-btn {
    background: #28D8FF;
    color: #0F1B2D;
    font-weight: 700;
    font-size: 17px;
    padding: 16px 40px;
    border-radius: 12px;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    transition: all 0.2s ease;
  }
  .cta-btn:hover {
    background: #5BE3FF;
    box-shadow: 0 0 24px rgba(40,216,255,0.5);
    color: #0F1B2D;
  }

  /* ===== 页脚 ===== */
  .site-footer {
    background: #0F1B2D;
    border-top: 1px solid rgba(255,255,255,0.06);
    padding: 60px 0 0;
  }
  .site-footer .footer-title {
    color: #E2F8FF;
    font-weight: 600;
    font-size: 15px;
    margin-bottom: 14px;
  }
  .site-footer .footer-link {
    color: #8A9DB0;
    font-size: 14px;
    display: block;
    padding: 4px 0;
  }
  .site-footer .footer-link:hover {
    color: #28D8FF;
  }
  .site-footer .copyright {
    border-top: 1px solid rgba(255,255,255,0.06);
    padding: 18px 0;
    margin-top: 40px;
    color: #6B7D8F;
    font-size: 13px;
  }

  /* ===== 徽章 ===== */
  .badge-soft {
    background: #E4F0FE;
    color: #2D6CDF;
    font-size: 12px;
    font-weight: 500;
    padding: 3px 12px;
    border-radius: 999px;
  }

  /* 图片hover */
  .cover-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
  }
  .cover-wrap:hover .cover-img { transform: scale(1.05); }
  .cover-wrap { overflow: hidden; }

  /* 响应式补强 */
  @media (max-width: 640px) {
    .container { padding-left: 16px; padding-right: 16px; }
    .hero h1 { font-size: 28px; }
    .hero .subtitle { font-size: 14px; }
    .section-title { font-size: 22px; }
    .t-card { border-radius: 10px; }
  }
  @media (min-width: 641px) and (max-width: 1024px) {
    .stat-num { font-size: 34px; }
  }

/* roulang page: article */
:root {
            --primary: #2D6CDF;
            --primary-dark: #1E56C6;
            --primary-light: #E4F0FE;
            --neon: #28D8FF;
            --green: #16A36A;
            --orange: #F59E0B;
            --dark-bg: #0F1B2D;
            --text-main: #1E2B3C;
            --text-sub: #5B6B7B;
            --text-placeholder: #9AA8B4;
            --border-color: #E2EAF2;
            --card-shadow: 0 2px 12px rgba(30, 43, 60, 0.06);
            --card-shadow-hover: 0 8px 24px rgba(30, 43, 60, 0.10);
            --radius-card: 12px;
            --radius-btn: 10px;
            --radius-tag: 999px;
            --bg-main: #F2F6FA;
        }
        * { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; }
        body {
            font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            background: var(--bg-main);
            color: var(--text-main);
            line-height: 1.75;
            font-size: 15px;
        }
        a { text-decoration: none; color: inherit; }
        img { max-width: 100%; display: block; }
        button { cursor: pointer; font-family: inherit; }
        .container { max-width: 1180px; margin: 0 auto; padding-left: 20px; padding-right: 20px; }

        /* ===== Neon Navigation ===== */
        .neon-nav {
            background: var(--dark-bg);
            border-top: 3px solid transparent;
            border-image: linear-gradient(90deg, transparent, var(--neon), transparent) 1;
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
        }
        .nav-link {
            color: #C9D6E3;
            font-weight: 500;
            font-size: 15px;
            padding: 8px 14px;
            border-radius: 6px;
            transition: all 0.2s ease;
            display: inline-block;
            position: relative;
        }
        .nav-link:hover { color: #E2F8FF; background: rgba(40, 216, 255, 0.08); }
        .nav-link.active {
            color: var(--neon);
            text-shadow: 0 0 8px rgba(40, 216, 255, 0.5);
        }
        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 14px;
            right: 14px;
            height: 2px;
            background: var(--neon);
            box-shadow: 0 0 8px rgba(40, 216, 255, 0.6);
            border-radius: 2px;
        }
        .nav-cta {
            background: var(--neon);
            color: var(--dark-bg) !important;
            font-weight: 700;
            font-size: 15px;
            padding: 9px 22px;
            border-radius: var(--radius-btn);
            transition: all 0.2s ease;
            display: inline-block;
        }
        .nav-cta:hover {
            box-shadow: 0 0 20px rgba(40, 216, 255, 0.5);
            transform: translateY(-1px);
        }
        .menu-toggle {
            display: none;
            background: transparent;
            border: 1px solid rgba(40, 216, 255, 0.4);
            color: var(--neon);
            padding: 8px 12px;
            border-radius: 8px;
            font-size: 18px;
        }
        .mobile-menu {
            display: none;
            flex-direction: column;
            background: var(--dark-bg);
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding: 12px 20px 20px;
        }
        .mobile-menu a {
            color: #C9D6E3;
            padding: 12px 8px;
            font-size: 15px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
        }
        .mobile-menu a:last-child { border-bottom: none; }
        .mobile-menu a.active { color: var(--neon); }
        .mobile-menu .nav-cta-m {
            background: var(--neon);
            color: var(--dark-bg);
            border-radius: 8px;
            text-align: center;
            font-weight: 700;
            margin-top: 8px;
        }

        /* ===== Article Hero ===== */
        .article-hero {
            background: var(--dark-bg);
            padding: 64px 0 48px;
            position: relative;
            overflow: hidden;
        }
        .article-hero::before {
            content: '';
            position: absolute;
            top: 0; left: 0; right: 0; bottom: 0;
            background-image: url('/assets/images/backpic/back-3.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.25;
        }
        .article-hero .container { position: relative; z-index: 2; }
        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            color: #8A9DB0;
            font-size: 14px;
            margin-bottom: 20px;
            flex-wrap: wrap;
        }
        .breadcrumb a { color: var(--neon); transition: color 0.2s; }
        .breadcrumb a:hover { color: #E2F8FF; }
        .breadcrumb .sep { opacity: 0.5; }
        .breadcrumb .current { color: #C9D6E3; }

        .article-title {
            color: #ffffff;
            font-size: clamp(26px, 4vw, 38px);
            font-weight: 800;
            line-height: 1.35;
            letter-spacing: -0.02em;
            text-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
            max-width: 820px;
        }
        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            margin-top: 20px;
            color: #8A9DB0;
            font-size: 14px;
        }
        .article-meta span { display: inline-flex; align-items: center; gap: 6px; }
        .article-meta i { color: var(--neon); }

        /* ===== Article Body ===== */
        .article-main {
            padding: 48px 0 64px;
        }
        .article-card {
            background: #fff;
            border-radius: var(--radius-card);
            box-shadow: var(--card-shadow);
            padding: 40px 48px;
            max-width: 860px;
            margin: 0 auto;
        }
        .article-content {
            font-size: 16px;
            line-height: 1.85;
            color: var(--text-main);
        }
        .article-content p {
            margin-bottom: 20px;
        }
        .article-content h2 {
            font-size: 24px;
            font-weight: 700;
            margin: 36px 0 16px;
            color: var(--text-main);
            padding-left: 14px;
            border-left: 4px solid var(--neon);
        }
        .article-content h3 {
            font-size: 19px;
            font-weight: 600;
            margin: 28px 0 12px;
            color: var(--text-main);
        }
        .article-content ul,
        .article-content ol {
            padding-left: 24px;
            margin-bottom: 20px;
        }
        .article-content li {
            margin-bottom: 8px;
        }
        .article-content blockquote {
            border-left: 4px solid var(--primary);
            background: var(--primary-light);
            padding: 16px 20px;
            border-radius: 0 8px 8px 0;
            margin: 24px 0;
            color: var(--text-sub);
            font-style: italic;
        }
        .article-content img {
            border-radius: var(--radius-card);
            margin: 24px auto;
        }
        .article-content a {
            color: var(--primary);
            font-weight: 500;
            border-bottom: 1px solid transparent;
            transition: border-color 0.2s;
        }
        .article-content a:hover { border-color: var(--primary); }

        .article-tags-bar {
            border-top: 1px solid var(--border-color);
            margin-top: 36px;
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            align-items: center;
        }
        .article-tags-bar .label {
            font-size: 14px;
            color: var(--text-sub);
        }
        .tag {
            background: var(--primary-light);
            color: var(--primary);
            padding: 4px 14px;
            border-radius: var(--radius-tag);
            font-size: 13px;
            font-weight: 500;
        }
        .share-btns {
            display: flex;
            gap: 8px;
            margin-left: auto;
        }
        .share-btn {
            width: 34px;
            height: 34px;
            border-radius: 50%;
            border: 1px solid var(--border-color);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: var(--text-sub);
            font-size: 14px;
            transition: all 0.2s ease;
        }
        .share-btn:hover {
            border-color: var(--neon);
            color: var(--neon);
            box-shadow: 0 0 10px rgba(40, 216, 255, 0.3);
        }

        /* ===== Related Articles ===== */
        .related-section {
            background: var(--bg-main);
            padding: 48px 0 64px;
        }
        .section-header {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            margin-bottom: 28px;
        }
        .section-title {
            font-size: clamp(22px, 3vw, 28px);
            font-weight: 700;
            color: var(--text-main);
            position: relative;
            padding-left: 16px;
        }
        .section-title::before {
            content: '';
            position: absolute;
            left: 0;
            top: 6px;
            bottom: 6px;
            width: 4px;
            background: var(--neon);
            border-radius: 2px;
            box-shadow: 0 0 8px rgba(40, 216, 255, 0.5);
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .related-card {
            background: #fff;
            border-radius: var(--radius-card);
            box-shadow: var(--card-shadow);
            overflow: hidden;
            transition: transform 0.25s ease, box-shadow 0.25s ease;
        }
        .related-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--card-shadow-hover);
        }
        .related-card img {
            height: 160px;
            width: 100%;
            object-fit: cover;
        }
        .related-card .r-body {
            padding: 18px 20px;
        }
        .related-card .r-title {
            font-size: 15px;
            font-weight: 600;
            line-height: 1.5;
            margin-bottom: 10px;
            display: block;
            color: var(--text-main);
            transition: color 0.2s;
        }
        .related-card:hover .r-title { color: var(--primary); }
        .related-card .r-meta {
            font-size: 13px;
            color: var(--text-placeholder);
        }

        /* ===== CTA ===== */
        .cta-section {
            background: var(--dark-bg);
            padding: 72px 0;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            bottom: -60px;
            right: -60px;
            width: 260px;
            height: 260px;
            border-radius: 50%;
            background: rgba(40, 216, 255, 0.08);
            filter: blur(40px);
        }
        .cta-inner {
            position: relative;
            z-index: 1;
            text-align: center;
            max-width: 640px;
            margin: 0 auto;
        }
        .cta-inner h2 {
            color: #fff;
            font-size: clamp(24px, 3vw, 32px);
            font-weight: 800;
            margin-bottom: 12px;
        }
        .cta-inner p {
            color: #8A9DB0;
            font-size: 16px;
            margin-bottom: 28px;
        }
        .cta-btn {
            display: inline-block;
            background: var(--neon);
            color: var(--dark-bg);
            font-weight: 700;
            font-size: 16px;
            padding: 14px 36px;
            border-radius: var(--radius-btn);
            transition: all 0.25s ease;
            box-shadow: 0 0 20px rgba(40, 216, 255, 0.2);
        }
        .cta-btn:hover {
            box-shadow: 0 0 32px rgba(40, 216, 255, 0.6);
            transform: translateY(-2px);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--dark-bg);
            border-top: 3px solid transparent;
            border-image: linear-gradient(90deg, transparent, var(--neon), transparent) 1;
            padding: 56px 0 24px;
        }
        .footer-title {
            color: #E2F8FF;
            font-weight: 600;
            font-size: 15px;
            margin-bottom: 16px;
        }
        .footer-link {
            display: block;
            color: #8A9DB0;
            font-size: 14px;
            padding: 5px 0;
            transition: color 0.2s ease;
        }
        .footer-link:hover { color: var(--neon); }
        .copyright {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding-top: 20px;
            margin-top: 32px;
            text-align: center;
        }
        .copyright p {
            color: #6B7A8C;
            font-size: 13px;
        }

        /* ===== Not Found ===== */
        .not-found {
            text-align: center;
            padding: 60px 20px;
            background: #fff;
            border-radius: var(--radius-card);
            box-shadow: var(--card-shadow);
        }
        .not-found i {
            font-size: 48px;
            color: var(--neon);
            margin-bottom: 16px;
        }
        .not-found h2 {
            font-size: 22px;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--text-main);
        }
        .not-found p {
            color: var(--text-sub);
            margin-bottom: 20px;
        }
        .back-home {
            display: inline-block;
            background: var(--primary);
            color: #fff;
            padding: 10px 28px;
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 15px;
            transition: background 0.2s ease;
        }
        .back-home:hover { background: var(--primary-dark); }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .related-grid { grid-template-columns: repeat(2, 1fr); }
        }
        @media (max-width: 768px) {
            .desktop-menu,
            .desktop-cta { display: none !important; }
            .menu-toggle { display: block; }
            .article-card { padding: 28px 24px; }
            .article-title { font-size: 24px; }
        }
        @media (max-width: 520px) {
            .container { padding-left: 14px; padding-right: 14px; }
            .article-hero { padding: 40px 0 32px; }
            .article-main { padding: 32px 0 48px; }
            .related-grid { grid-template-columns: 1fr; }
            .article-meta { gap: 10px; font-size: 13px; }
            .share-btns { margin-left: 0; }
            .cta-section { padding: 48px 0; }
        }

/* roulang page: category1 */
:root {
  --brand: #2D6CDF;
  --brand-dark: #1E56C6;
  --brand-light: #E4F0FE;
  --neon: #28D8FF;
  --ink: #1E2B3C;
  --sub: #5B6B7B;
  --faint: #9AA8B4;
  --line: #E2EAF2;
  --deep: #0F1B2D;
  --page: #F2F6FA;
  --card: #FFFFFF;
  --green: #16A36A;
  --orange: #F59E0B;
  --radius: 12px;
  --shadow: 0 2px 12px rgba(30, 43, 60, 0.06);
  --shadow-hover: 0 8px 24px rgba(30, 43, 60, 0.10);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html { scroll-behavior: smooth; }
body {
  font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
  background: var(--page);
  color: var(--ink);
  line-height: 1.75;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }
button { cursor: pointer; font-family: inherit; }

.container {
  max-width: 1180px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 20px;
  padding-right: 20px;
}

/* === 霓虹导航 === */
.neon-nav {
  background: var(--deep);
  border-top: 3px solid transparent;
  border-image: linear-gradient(90deg, transparent, var(--neon), transparent) 1;
  position: sticky;
  top: 0;
  z-index: 999;
  box-shadow: 0 4px 20px rgba(15, 27, 45, 0.3);
}
.neon-nav .nav-link {
  color: #C9D6E3;
  font-size: 15px;
  font-weight: 500;
  padding: 9px 14px;
  border-radius: 8px;
  transition: color 0.2s ease, background 0.2s ease, box-shadow 0.2s ease;
  position: relative;
  white-space: nowrap;
}
.neon-nav .nav-link:hover {
  color: #E2F8FF;
  background: rgba(255, 255, 255, 0.04);
}
.neon-nav .nav-link.active {
  color: var(--neon);
  text-shadow: 0 0 8px rgba(40, 216, 255, 0.35);
  background: rgba(40, 216, 255, 0.06);
}
.neon-nav .nav-link.active::after {
  content: '';
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 2px;
  height: 2px;
  background: var(--neon);
  box-shadow: 0 0 10px rgba(40, 216, 255, 0.8);
  border-radius: 2px;
}
.nav-cta {
  background: var(--neon);
  color: var(--deep) !important;
  font-weight: 700;
  border-radius: 8px;
  height: 38px;
  padding: 0 20px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  transition: box-shadow 0.2s ease, transform 0.2s ease, filter 0.2s ease;
  white-space: nowrap;
}
.nav-cta:hover {
  box-shadow: 0 0 18px rgba(40, 216, 255, 0.55);
  transform: translateY(-1px);
  filter: brightness(1.05);
}
.nav-cta:focus-visible {
  outline: 2px solid var(--neon);
  outline-offset: 2px;
}
.menu-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--neon);
  font-size: 24px;
  padding: 6px 10px;
  border-radius: 6px;
  transition: background 0.2s ease;
}
.menu-toggle:hover { background: rgba(255, 255, 255, 0.06); }

.mobile-menu {
  display: none;
  flex-direction: column;
  background: var(--deep);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 6px 16px 16px;
}
.mobile-menu.open { display: flex; }
.mobile-menu a {
  color: #C9D6E3;
  padding: 13px 10px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  font-size: 15px;
  font-weight: 500;
  border-radius: 4px;
  transition: color 0.2s ease, background 0.2s ease;
}
.mobile-menu a:hover { color: var(--neon); background: rgba(255, 255, 255, 0.03); }
.mobile-menu a.active { color: var(--neon); font-weight: 600; }
.mobile-menu .nav-cta-m {
  background: var(--neon);
  color: var(--deep) !important;
  border-radius: 8px;
  text-align: center;
  font-weight: 700;
  border-bottom: none;
  margin-top: 10px;
  padding: 12px;
}

/* === 页头 Banner === */
.page-hero {
  background-color: var(--deep);
  background-size: cover;
  background-position: center;
  position: relative;
  padding: 72px 0 64px;
}
.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(110deg, rgba(15, 27, 45, 0.94) 0%, rgba(15, 27, 45, 0.84) 55%, rgba(15, 27, 45, 0.65) 100%);
}
.page-hero .hero-content {
  position: relative;
  z-index: 2;
}
.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(40, 216, 255, 0.12);
  border: 1px solid rgba(40, 216, 255, 0.35);
  color: var(--neon);
  font-size: 13px;
  font-weight: 600;
  padding: 6px 14px;
  border-radius: 999px;
  letter-spacing: 0.02em;
  margin-bottom: 18px;
}
.page-hero h1 {
  font-size: 40px;
  font-weight: 800;
  color: #FFFFFF;
  line-height: 1.2;
  letter-spacing: -0.01em;
  margin-bottom: 14px;
  text-shadow: 0 2px 16px rgba(0, 0, 0, 0.3);
}
.page-hero .hero-desc {
  color: #B6C6D6;
  font-size: 17px;
  max-width: 640px;
  line-height: 1.7;
  margin-bottom: 28px;
}
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  color: #8A9DB0;
  font-size: 14px;
  margin-bottom: 24px;
  flex-wrap: wrap;
}
.breadcrumb a { color: #C9D6E3; transition: color 0.2s ease; }
.breadcrumb a:hover { color: var(--neon); }
.breadcrumb i { color: var(--neon); font-size: 12px; }
.breadcrumb .current { color: var(--neon); }

/* === 通用板块 === */
.section-block { padding: 72px 0; }
.section-block.tight { padding: 60px 0; }
.section-label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--brand-light);
  color: var(--brand);
  font-size: 13px;
  font-weight: 600;
  padding: 5px 14px;
  border-radius: 999px;
  margin-bottom: 14px;
}
.section-title {
  font-size: 30px;
  font-weight: 800;
  color: var(--ink);
  line-height: 1.3;
  letter-spacing: -0.01em;
  margin-bottom: 16px;
}
.section-sub {
  color: var(--sub);
  font-size: 15px;
  max-width: 640px;
  line-height: 1.8;
}

/* === 按钮 === */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--brand);
  color: #fff;
  font-weight: 600;
  font-size: 15px;
  height: 46px;
  padding: 0 28px;
  border-radius: 10px;
  border: none;
  transition: background 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}
.btn-primary:hover { background: var(--brand-dark); box-shadow: 0 4px 16px rgba(45, 108, 223, 0.3); transform: translateY(-2px); }
.btn-primary:focus-visible { outline: 2px solid var(--brand); outline-offset: 3px; box-shadow: 0 0 0 4px rgba(45, 108, 223, 0.2); }
.btn-primary:active { transform: translateY(0); filter: brightness(0.95); }

.btn-neon {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--neon);
  color: var(--deep);
  font-weight: 700;
  font-size: 16px;
  height: 52px;
  padding: 0 32px;
  border-radius: 10px;
  border: none;
  transition: box-shadow 0.2s ease, transform 0.2s ease, filter 0.2s ease;
  text-shadow: 0 1px 0 rgba(255, 255, 255, 0.2);
}
.btn-neon:hover {
  box-shadow: 0 0 24px rgba(40, 216, 255, 0.6);
  transform: translateY(-2px);
  filter: brightness(1.05);
}
.btn-neon:focus-visible { outline: 2px solid var(--neon); outline-offset: 3px; }
.btn-neon:active { transform: translateY(0); filter: brightness(0.95); }

.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: transparent;
  border: 1.5px solid #C9D6E3;
  color: #E2F8FF;
  font-weight: 600;
  font-size: 15px;
  height: 46px;
  padding: 0 26px;
  border-radius: 10px;
  transition: all 0.2s ease;
}
.btn-ghost:hover { border-color: var(--neon); color: var(--neon); background: rgba(40, 216, 255, 0.06); }
.btn-ghost:focus-visible { outline: 2px solid var(--neon); outline-offset: 3px; }

/* === 图文卡片 === */
.split-card {
  background: #fff;
  border-radius: 16px;
  box-shadow: var(--shadow);
  overflow: hidden;
  transition: box-shadow 0.25s ease;
}
.split-card:hover { box-shadow: var(--shadow-hover); }
.feature-list li {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 12px 0;
  border-bottom: 1px solid #F0F3F7;
}
.feature-list li:last-child { border-bottom: none; }
.feature-list i {
  color: var(--brand);
  font-size: 15px;
  margin-top: 4px;
  flex-shrink: 0;
}

/* === 赛事类型列表 === */
.event-row {
  display: flex;
  align-items: center;
  gap: 20px;
  background: #fff;
  border-radius: 14px;
  box-shadow: var(--shadow);
  padding: 20px 24px;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  border-left: 4px solid transparent;
}
.event-row:hover {
  transform: translateX(6px);
  box-shadow: var(--shadow-hover);
  border-left-color: var(--neon);
}
.event-index {
  font-size: 28px;
  font-weight: 800;
  color: var(--brand);
  font-feature-settings: "tnum";
  min-width: 52px;
  position: relative;
}
.event-index::after {
  content: '';
  position: absolute;
  right: -8px;
  top: 20%;
  bottom: 20%;
  width: 1px;
  background: #E2EAF2;
}
.event-tag {
  background: var(--brand-light);
  color: var(--brand);
  font-size: 12px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 999px;
  white-space: nowrap;
}

/* === 数据区 === */
.data-section {
  background: var(--deep);
  background-size: cover;
  background-position: center;
  position: relative;
  padding: 72px 0;
}
.data-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(15, 27, 45, 0.88);
}
.data-section .container { position: relative; z-index: 2; }
.data-card {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 14px;
  padding: 28px 20px;
  text-align: center;
  transition: border-color 0.2s ease, transform 0.2s ease;
}
.data-card:hover {
  border-color: rgba(40, 216, 255, 0.4);
  transform: translateY(-4px);
}
.data-number {
  font-size: 40px;
  font-weight: 800;
  color: var(--neon);
  font-feature-settings: "tnum";
  line-height: 1.2;
  margin-bottom: 8px;
  text-shadow: 0 0 20px rgba(40, 216, 255, 0.2);
}
.data-label {
  color: #8A9DB0;
  font-size: 14px;
}

/* === 流程 === */
.process-grid { position: relative; }
.step-card {
  background: #fff;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 28px 24px 24px;
  position: relative;
  z-index: 1;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.step-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
}
.step-number {
  font-size: 42px;
  font-weight: 800;
  color: var(--brand);
  line-height: 1;
  margin-bottom: 18px;
  font-feature-settings: "tnum";
}
.step-card:nth-child(even) .step-number { color: var(--neon); }
.step-title {
  font-size: 17px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 8px;
}
.step-desc {
  color: var(--sub);
  font-size: 14px;
  line-height: 1.7;
}
@media (min-width: 768px) {
  .process-grid::before {
    content: '';
    position: absolute;
    top: 46px;
    left: 12%;
    right: 12%;
    height: 2px;
    border-top: 2px dashed #C6D6E6;
    z-index: 0;
  }
}

/* === FAQ === */
.faq-item {
  background: #fff;
  border-radius: 12px;
  box-shadow: var(--shadow);
  overflow: hidden;
  transition: box-shadow 0.2s ease;
  border: 1px solid transparent;
}
.faq-item:hover { box-shadow: var(--shadow-hover); }
.faq-item.open { border-color: rgba(40, 216, 255, 0.3); }
.faq-question {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 22px;
  background: none;
  border: none;
  font-size: 16px;
  font-weight: 600;
  color: var(--ink);
  text-align: left;
  gap: 12px;
  transition: background 0.2s ease;
}
.faq-question:hover { background: #F6F9FC; }
.faq-icon {
  width: 28px;
  height: 28px;
  border-radius: 8px;
  background: var(--brand-light);
  color: var(--brand);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.3s ease, background 0.3s ease, color 0.3s ease;
  flex-shrink: 0;
  font-size: 14px;
}
.faq-item.open .faq-icon {
  transform: rotate(45deg);
  background: var(--brand);
  color: #fff;
}
.faq-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease;
}
.faq-body-inner {
  padding: 0 22px 20px;
  color: var(--sub);
  line-height: 1.8;
  font-size: 15px;
}

/* === CTA === */
.cta-section {
  position: relative;
  background: linear-gradient(135deg, #E4F0FE 0%, #D3E6FD 100%);
  border-radius: 20px;
  padding: 56px 48px;
  overflow: hidden;
}
.cta-section::after {
  content: '';
  position: absolute;
  right: -40px;
  top: -40px;
  width: 220px;
  height: 220px;
  border-radius: 50%;
  background: rgba(40, 216, 255, 0.12);
}
.cta-section h2 {
  font-size: 28px;
  font-weight: 800;
  color: var(--ink);
  line-height: 1.3;
  margin-bottom: 12px;
}
.cta-section p {
  color: var(--sub);
  font-size: 15px;
  max-width: 560px;
  line-height: 1.8;
  margin-bottom: 28px;
}

/* === 页脚 === */
.site-footer {
  background: var(--deep);
  border-top: 3px solid transparent;
  border-image: linear-gradient(90deg, transparent, var(--neon), transparent) 1;
  padding: 56px 0 0;
  margin-top: 0;
}
.site-footer .footer-title {
  color: #FFFFFF;
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 16px;
}
.site-footer .footer-link {
  display: block;
  color: #8A9DB0;
  font-size: 14px;
  line-height: 2.2;
  transition: color 0.2s ease, padding-left 0.2s ease;
}
.site-footer .footer-link:hover {
  color: var(--neon);
  padding-left: 4px;
}
.site-footer .copyright {
  border-top: 1px solid rgba(255, 255, 255, 0.07);
  padding: 20px 0;
  color: #6B7B8C;
  font-size: 13px;
  text-align: center;
  margin-top: 32px;
}

/* === 响应式 === */
@media (max-width: 1024px) {
  .container { padding-left: 16px; padding-right: 16px; }
  .section-block { padding: 56px 0; }
  .page-hero { padding: 56px 0 48px; }
  .page-hero h1 { font-size: 32px; }
  .section-title { font-size: 26px; }
}

@media (max-width: 768px) {
  .desktop-menu { display: none !important; }
  .desktop-cta { display: none !important; }
  .menu-toggle { display: inline-flex; align-items: center; justify-content: center; }
  .page-hero { padding: 44px 0 36px; min-height: auto; }
  .page-hero h1 { font-size: 28px; }
  .hero-kicker { font-size: 12px; padding: 5px 12px; }
  .hero-desc { font-size: 15px; }
  .section-block { padding: 44px 0; }
  .section-block.tight { padding: 36px 0; }
  .section-title { font-size: 23px; }
  .cta-section { padding: 36px 24px; border-radius: 14px; }
  .cta-section h2 { font-size: 22px; }
  .data-card { padding: 20px 14px; }
  .data-number { font-size: 30px; }
  .event-row { flex-direction: column; align-items: flex-start; gap: 10px; padding: 18px 16px; }
  .event-index::after { display: none; }
  .faq-question { font-size: 15px; padding: 16px 16px; }
  .faq-body-inner { padding: 0 16px 18px; font-size: 14px; }
}

@media (max-width: 520px) {
  .page-hero h1 { font-size: 24px; }
  .section-title { font-size: 21px; }
  .btn-neon, .btn-primary { width: 100%; justify-content: center; }
  .page-hero .flex-col .btn-neon { margin-bottom: 12px; }
  .mobile-menu a { padding: 12px 8px; }
}

/* 焦点可访问性 */
a:focus-visible, button:focus-visible {
  outline: 2px solid var(--neon);
  outline-offset: 2px;
}

/* roulang page: category2 */
:root {
            --brand: #2D6CDF;
            --brand-dark: #1E56C6;
            --brand-light: #E4F0FE;
            --neon: #28D8FF;
            --success: #16A36A;
            --warning: #F59E0B;
            --night: #0F1B2D;
            --ink: #1E2B3C;
            --sub: #5B6B7B;
            --faint: #9AA8B4;
            --line: #E2EAF2;
            --canvas: #F2F6FA;
            --radius: 12px;
            --radius-sm: 8px;
            --shadow-card: 0 2px 12px rgba(30, 43, 60, 0.06);
            --shadow-hover: 0 8px 24px rgba(30, 43, 60, 0.10);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
            background: var(--canvas);
            color: var(--ink);
            line-height: 1.75;
            font-size: 15px;
            -webkit-font-smoothing: antialiased;
        }

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

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

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

        .wrap {
            max-width: 1180px;
            margin: 0 auto;
            padding-left: 20px;
            padding-right: 20px;
        }

        /* ===== 导航 ===== */
        .neon-nav {
            background: var(--night);
            position: sticky;
            top: 0;
            z-index: 1000;
            border-bottom: 1px solid rgba(255, 255, 255, 0.04);
        }

        .neon-nav::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, transparent, var(--neon), transparent);
            pointer-events: none;
        }

        .desktop-menu {
            display: flex;
            gap: 4px;
        }

        .nav-link {
            color: #C9D6E3;
            font-size: 15px;
            font-weight: 500;
            padding: 8px 14px;
            border-radius: 8px;
            transition: all 0.2s ease;
        }

        .nav-link:hover {
            color: #E2F8FF;
            background: rgba(40, 216, 255, 0.08);
        }

        .nav-link.active {
            color: var(--neon);
            box-shadow: 0 0 8px rgba(40, 216, 255, 0.3);
            text-shadow: 0 0 8px rgba(40, 216, 255, 0.3);
        }

        .nav-link:focus-visible {
            outline: 2px solid var(--neon);
            outline-offset: 2px;
        }

        .nav-cta {
            background: var(--neon);
            color: var(--night) !important;
            font-weight: 600;
            font-size: 14px;
            height: 38px;
            padding: 0 20px;
            border-radius: 8px;
            display: inline-flex;
            align-items: center;
            transition: all 0.2s ease;
        }

        .nav-cta:hover {
            background: #7BE8FF;
            box-shadow: 0 0 14px rgba(40, 216, 255, 0.45);
        }

        .menu-toggle {
            display: none;
            color: var(--neon);
            font-size: 22px;
            width: 44px;
            height: 44px;
            align-items: center;
            justify-content: center;
            border-radius: 8px;
        }

        .menu-toggle:hover {
            background: rgba(40, 216, 255, 0.08);
        }

        .mobile-menu {
            display: none;
            background: var(--night);
            padding: 8px 16px 16px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
        }

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

        .mobile-menu a {
            display: block;
            padding: 12px 8px;
            color: #C9D6E3;
            font-size: 15px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }

        .mobile-menu a.active {
            color: var(--neon);
        }

        .mobile-menu .nav-cta-m {
            margin-top: 12px;
            background: var(--neon);
            color: var(--night) !important;
            text-align: center;
            border-radius: 8px;
            font-weight: 600;
            border-bottom: none;
            padding: 12px;
        }

        /* ===== 页头 ===== */
        .page-hero {
            background-color: var(--night);
            background-image: url('/assets/images/backpic/back-3.webp');
            background-size: cover;
            background-position: center;
            position: relative;
            padding: 76px 0 92px;
        }

        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(120deg, rgba(15, 27, 45, 0.95) 0%, rgba(15, 27, 45, 0.78) 45%, rgba(40, 216, 255, 0.15) 100%);
        }

        .page-hero .wrap {
            position: relative;
            z-index: 2;
        }

        .hero-eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(40, 216, 255, 0.12);
            border: 1px solid rgba(40, 216, 255, 0.35);
            color: var(--neon);
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.04em;
            padding: 6px 14px;
            border-radius: 999px;
            margin-bottom: 18px;
        }

        .page-hero h1 {
            font-size: 44px;
            font-weight: 800;
            color: #ffffff;
            line-height: 1.15;
            letter-spacing: -0.01em;
            margin-bottom: 14px;
        }

        .hero-meta {
            color: var(--neon);
            font-size: 15px;
            font-weight: 500;
            letter-spacing: 0.02em;
            margin-bottom: 14px;
        }

        .hero-lead {
            color: #C9D6E3;
            font-size: 16px;
            max-width: 640px;
            line-height: 1.75;
        }

        /* ===== 信任指标条 ===== */
        .trust-bar {
            background: #ffffff;
            border-bottom: 1px solid var(--line);
            padding: 30px 0;
        }

        .trust-item {
            text-align: center;
            padding: 10px 0;
        }

        .trust-num {
            font-size: 36px;
            font-weight: 700;
            color: var(--brand);
            font-variant-numeric: tabular-nums;
            line-height: 1.2;
        }

        .trust-label {
            font-size: 13px;
            color: var(--sub);
            margin-top: 4px;
        }

        /* ===== 板块通用 ===== */
        .section-label {
            display: inline-block;
            background: var(--brand-light);
            color: var(--brand);
            font-size: 13px;
            font-weight: 600;
            padding: 5px 14px;
            border-radius: 999px;
            letter-spacing: 0.04em;
            margin-bottom: 14px;
        }

        .section-title {
            font-size: 28px;
            font-weight: 700;
            color: var(--ink);
            line-height: 1.25;
            letter-spacing: -0.01em;
            margin-bottom: 12px;
        }

        .section-desc {
            font-size: 15px;
            color: var(--sub);
            line-height: 1.7;
        }

        /* ===== 按钮 ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-size: 15px;
            font-weight: 600;
            height: 46px;
            padding: 0 24px;
            border-radius: 10px;
            transition: all 0.2s ease;
            border: 1.5px solid transparent;
            cursor: pointer;
            white-space: nowrap;
            line-height: 1;
        }

        .btn-neon {
            background: var(--neon);
            color: var(--night);
        }

        .btn-neon:hover {
            background: #7BE8FF;
            box-shadow: 0 0 16px rgba(40, 216, 255, 0.5);
            transform: translateY(-2px);
        }

        .btn-outline-light {
            background: transparent;
            color: #ffffff;
            border-color: rgba(255, 255, 255, 0.65);
        }

        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: #ffffff;
        }

        .btn-lg {
            height: 54px;
            padding: 0 32px;
            font-size: 16px;
        }

        .btn:focus-visible {
            outline: 3px solid rgba(40, 216, 255, 0.45);
            outline-offset: 2px;
        }

        /* ===== 卡片 ===== */
        .card {
            background: #ffffff;
            border-radius: var(--radius);
            box-shadow: var(--shadow-card);
            transition: all 0.2s ease;
        }

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

        /* ===== 介绍区 ===== */
        .intro-img-wrap {
            border-radius: 16px;
            overflow: hidden;
            box-shadow: var(--shadow-hover);
        }

        .check-list {
            list-style: none;
            margin-top: 20px;
        }

        .check-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            padding: 8px 0;
            font-size: 15px;
            color: var(--ink);
        }

        .check-list li i {
            color: var(--brand);
            font-size: 18px;
            margin-top: 3px;
        }

        /* ===== 支持方案 ===== */
        .support-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
            max-width: 880px;
            margin: 0 auto;
        }

        .support-item {
            display: flex;
            align-items: flex-start;
            gap: 20px;
            padding: 28px;
            border-radius: var(--radius);
            background: #ffffff;
            box-shadow: var(--shadow-card);
            transition: all 0.2s ease;
            border-left: 4px solid transparent;
        }

        .support-item:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
            border-left-color: var(--neon);
        }

        .support-icon {
            flex-shrink: 0;
            width: 56px;
            height: 56px;
            border-radius: 12px;
            background: var(--brand-light);
            color: var(--brand);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
        }

        .support-content {
            flex: 1;
        }

        .support-content h3 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 6px;
        }

        .support-content p {
            font-size: 15px;
            color: var(--sub);
            line-height: 1.7;
        }

        .support-tag {
            flex-shrink: 0;
            background: #EAF7FF;
            color: #0E7FA8;
            font-size: 13px;
            font-weight: 500;
            padding: 6px 14px;
            border-radius: 999px;
            align-self: center;
        }

        /* ===== 流程 ===== */
        .step-card {
            position: relative;
            border-radius: var(--radius);
            background: #ffffff;
            box-shadow: var(--shadow-card);
            transition: all 0.2s ease;
            text-align: center;
            padding: 36px 24px;
        }

        .step-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-6px);
        }

        .step-card::after {
            content: '→';
            position: absolute;
            right: -22px;
            top: 50%;
            transform: translateY(-50%);
            color: #C5D3E0;
            font-size: 18px;
            font-weight: 700;
            z-index: 3;
        }

        .step-card:last-child::after {
            display: none;
        }

        .step-num {
            font-size: 40px;
            font-weight: 800;
            color: var(--neon);
            line-height: 1;
            margin-bottom: 16px;
            font-variant-numeric: tabular-nums;
            letter-spacing: -0.02em;
        }

        .step-card h3 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 8px;
        }

        .step-card p {
            font-size: 14px;
            color: var(--sub);
            line-height: 1.65;
        }

        /* ===== 场景 ===== */
        .scenario-card {
            border-radius: var(--radius);
            background: #ffffff;
            box-shadow: var(--shadow-card);
            transition: all 0.2s ease;
            overflow: hidden;
            height: 100%;
        }

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

        .scenario-img {
            height: 190px;
            overflow: hidden;
        }

        .scenario-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.3s ease;
        }

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

        .scenario-card h3 {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 8px;
        }

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

        /* ===== 关联导航 ===== */
        .related-inner {
            background: var(--brand-light);
            border-radius: var(--radius);
            padding: 28px 32px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
        }

        .related-inner h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--ink);
        }

        .related-chip {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: #ffffff;
            color: var(--brand);
            font-size: 14px;
            font-weight: 600;
            padding: 10px 18px;
            border-radius: 999px;
            box-shadow: 0 1px 4px rgba(30, 43, 60, 0.06);
            transition: all 0.2s ease;
        }

        .related-chip:hover {
            background: var(--brand);
            color: #ffffff;
            transform: translateY(-2px);
        }

        /* ===== FAQ ===== */
        .faq-item {
            background: #ffffff;
            border-radius: var(--radius);
            box-shadow: var(--shadow-card);
            margin-bottom: 14px;
            overflow: hidden;
            border: 1px solid transparent;
            transition: border-color 0.2s, box-shadow 0.2s;
        }

        .faq-item.active {
            border-color: rgba(40, 216, 255, 0.25);
            box-shadow: var(--shadow-hover);
        }

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 22px 24px;
            font-size: 16px;
            font-weight: 600;
            color: var(--ink);
            text-align: left;
            transition: background 0.2s ease;
        }

        .faq-question:hover {
            background: #F7FAFD;
        }

        .faq-question:focus-visible {
            outline: 2px solid var(--brand);
            outline-offset: -2px;
            border-radius: 12px;
        }

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

        .faq-item.active .faq-question i {
            transform: rotate(180deg);
            color: var(--neon);
        }

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

        .faq-answer p {
            padding: 0 24px 22px;
            color: var(--sub);
            font-size: 15px;
            line-height: 1.7;
        }

        /* ===== CTA ===== */
        .cta-inner {
            background: linear-gradient(135deg, #2D6CDF 0%, #1E56C6 100%);
            border-radius: 20px;
            padding: 56px 32px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-inner::before {
            content: '';
            position: absolute;
            top: -40%;
            right: -20%;
            width: 360px;
            height: 360px;
            background: radial-gradient(circle, rgba(40, 216, 255, 0.28) 0%, transparent 70%);
            pointer-events: none;
        }

        .cta-inner h2 {
            font-size: 30px;
            font-weight: 700;
            color: #ffffff;
            margin-bottom: 12px;
            position: relative;
        }

        .cta-inner p {
            color: rgba(255, 255, 255, 0.85);
            font-size: 16px;
            margin-bottom: 28px;
            position: relative;
            max-width: 540px;
            margin-left: auto;
            margin-right: auto;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--night);
            padding: 56px 0 0;
            border-top: 3px solid transparent;
            border-image: linear-gradient(90deg, transparent, rgba(40, 216, 255, 0.4), transparent) 1;
        }

        .footer-title {
            color: #E2F8FF;
            font-weight: 600;
            margin-bottom: 14px;
            font-size: 15px;
        }

        .footer-link {
            display: block;
            color: #8A9DB0;
            font-size: 14px;
            padding: 6px 0;
            transition: color 0.2s ease;
        }

        .footer-link:hover {
            color: var(--neon);
        }

        .copyright {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 20px 0;
            text-align: center;
            color: #6B7C8E;
            font-size: 13px;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .page-hero h1 {
                font-size: 36px;
            }

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

        @media (max-width: 768px) {
            .desktop-menu,
            .desktop-cta {
                display: none;
            }

            .menu-toggle {
                display: flex;
            }

            .page-hero {
                padding: 48px 0 60px;
            }

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

            .hero-meta {
                font-size: 14px;
            }

            .hero-lead {
                font-size: 15px;
            }

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

            .section-title {
                font-size: 22px;
            }

            .support-item {
                flex-direction: column;
                padding: 22px;
            }

            .support-icon {
                width: 48px;
                height: 48px;
                font-size: 18px;
            }

            .support-tag {
                align-self: flex-start;
                margin-left: 0;
            }

            .step-card::after {
                right: auto;
                left: 50%;
                top: auto;
                bottom: -22px;
                transform: translateX(-50%) rotate(90deg);
            }

            .step-card:last-child::after {
                display: none;
            }

            .cta-inner {
                padding: 40px 24px;
            }

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

            .btn-lg {
                height: 48px;
                padding: 0 24px;
                font-size: 15px;
            }
        }

        @media (max-width: 480px) {
            .wrap {
                padding-left: 16px;
                padding-right: 16px;
            }

            .trust-bar {
                padding: 20px 0;
            }

            .trust-num {
                font-size: 24px;
            }

            .scenario-img {
                height: 160px;
            }

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

            .related-chip {
                width: 100%;
                justify-content: center;
            }
        }

/* roulang page: category3 */
:root {
  --bg: #F2F6FA;
  --card: #FFFFFF;
  --primary: #2D6CDF;
  --primary-dark: #1E56C6;
  --primary-light: #E4F0FE;
  --neon: #28D8FF;
  --neon-light: #5EE6FF;
  --green: #16A36A;
  --orange: #F59E0B;
  --dark: #0F1B2D;
  --text: #1E2B3C;
  --text-sub: #5B6B7B;
  --muted: #9AA8B4;
  --border: #E2EAF2;
  --radius: 12px;
  --radius-btn: 10px;
  --shadow: 0 2px 12px rgba(30, 43, 60, 0.06);
  --shadow-hover: 0 8px 24px rgba(30, 43, 60, 0.10);
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; border: 0; background: none; cursor: pointer; }
input { font-family: inherit; }
.container {
  width: 100%;
  max-width: 1180px !important;
  margin: 0 auto;
  padding-left: 20px;
  padding-right: 20px;
}
a:focus-visible, button:focus-visible, input:focus-visible {
  outline: 3px solid rgba(40, 216, 255, 0.55);
  outline-offset: 2px;
  border-radius: 6px;
}
/* 导航 */
.neon-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--dark);
  box-shadow: 0 4px 24px rgba(15, 27, 45, 0.35);
  border-top: 3px solid transparent;
  border-image: linear-gradient(90deg, rgba(40,216,255,0), rgba(40,216,255,0.9), rgba(40,216,255,0)) 1;
}
.nav-link {
  display: inline-flex;
  align-items: center;
  height: 64px;
  padding: 0 14px;
  color: #C9D6E3;
  font-size: 15px;
  font-weight: 500;
  border-radius: 6px;
  transition: color .2s ease, text-shadow .2s ease, background .2s ease;
}
.nav-link:hover {
  color: #E2F8FF;
  text-shadow: 0 0 8px rgba(40, 216, 255, 0.4);
}
.nav-link.active {
  color: var(--neon);
  text-shadow: 0 0 8px rgba(40, 216, 255, 0.6);
  box-shadow: inset 0 -2px 0 0 var(--neon), 0 0 8px rgba(40, 216, 255, 0.3);
}
.nav-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 38px;
  padding: 0 18px;
  background: var(--neon);
  color: var(--dark);
  font-weight: 600;
  font-size: 14px;
  border-radius: var(--radius-btn);
  transition: all .2s ease;
}
.nav-cta:hover {
  background: var(--neon-light);
  box-shadow: 0 0 16px rgba(40, 216, 255, 0.5);
  transform: translateY(-1px);
}
.desktop-cta { display: none !important; }
.desktop-menu { display: none; }
.menu-toggle {
  display: inline-flex;
  width: 42px;
  height: 42px;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 10px;
  color: var(--neon);
  font-size: 18px;
  transition: all .2s ease;
}
.menu-toggle:hover { background: rgba(255, 255, 255, 0.14); }
.mobile-menu {
  display: none;
  flex-direction: column;
  padding: 8px 20px 20px;
  background: var(--dark);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}
.mobile-menu.open { display: flex; }
.mobile-menu a {
  display: block;
  padding: 14px 4px;
  color: #C9D6E3;
  font-size: 15px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}
.mobile-menu a.active { color: var(--neon); }
.mobile-menu a:last-child { border-bottom: 0; }
.nav-cta-m {
  margin-top: 12px;
  text-align: center;
  background: var(--neon);
  color: var(--dark) !important;
  border-radius: var(--radius-btn);
  font-weight: 600;
  padding: 12px 4px;
}
@media (min-width: 768px) {
  .desktop-menu { display: flex !important; }
  .desktop-cta { display: inline-flex !important; }
  .menu-toggle, .mobile-menu { display: none !important; }
}
/* 页头 */
.cat-hero {
  position: relative;
  isolation: isolate;
  padding: 88px 0 76px;
  background: var(--dark);
  overflow: hidden;
}
.cat-hero-bg {
  position: absolute;
  inset: 0;
  z-index: -2;
  background-size: cover;
  background-position: center;
  opacity: 0.32;
}
.cat-hero-overlay {
  position: absolute;
  inset: 0;
  z-index: -1;
  background: linear-gradient(100deg, rgba(15,27,45,0.95) 20%, rgba(15,27,45,0.78) 65%, rgba(15,27,45,0.45));
}
.cat-hero-content { max-width: 720px; }
.cat-hero .badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(40, 216, 255, 0.12);
  border: 1px solid rgba(40, 216, 255, 0.3);
  color: var(--neon);
  border-radius: 999px;
  padding: 6px 14px;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: .02em;
}
.cat-hero h1 {
  color: #fff;
  font-size: 40px;
  line-height: 1.15;
  font-weight: 800;
  margin: 18px 0 12px;
}
.cat-hero p { color: #C9D6E3; font-size: 16px; max-width: 620px; margin: 0; }
.cat-hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 28px; }
@media (max-width: 767px) {
  .cat-hero { padding: 56px 0 44px; }
  .cat-hero h1 { font-size: 30px; }
  .cat-hero p { font-size: 15px; }
}
/* 按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-weight: 600;
  font-size: 15px;
  border-radius: var(--radius-btn);
  padding: 0 24px;
  height: 44px;
  transition: all .2s ease;
  text-decoration: none;
  border: 0;
  cursor: pointer;
}
.btn-neon { background: var(--neon); color: var(--dark); }
.btn-neon:hover {
  background: var(--neon-light);
  box-shadow: 0 0 20px rgba(40, 216, 255, 0.55);
  transform: translateY(-2px);
}
.btn-ghost-light { border: 1px solid rgba(255, 255, 255, 0.6); color: #fff; background: rgba(255,255,255,0.06); }
.btn-ghost-light:hover { background: rgba(255, 255, 255, 0.14); border-color: #fff; }
.btn-light { background: rgba(255, 255, 255, 0.14); border: 1px solid rgba(255, 255, 255, 0.5); color: #fff; }
.btn-light:hover { background: rgba(255, 255, 255, 0.26); transform: translateY(-2px); }
/* 板块 */
.section { padding: 80px 0; }
.section-alt { background: #FFFFFF; }
.section-tag {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  color: var(--primary);
  background: var(--primary-light);
  padding: 5px 14px;
  border-radius: 999px;
  margin-bottom: 14px;
  letter-spacing: .03em;
}
.section-head { margin-bottom: 36px; }
.section-head h2 {
  font-size: 28px;
  font-weight: 700;
  margin: 0 0 8px;
  line-height: 1.3;
}
.section-head p { color: var(--text-sub); font-size: 15px; margin: 0; }
@media (max-width: 767px) {
  .section { padding: 48px 0; }
  .section-head h2 { font-size: 23px; }
}
/* 图文混排 */
.about-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 48px;
  align-items: center;
}
.about-media {
  border-radius: 16px;
  overflow: hidden;
  box-shadow: var(--shadow-hover);
}
.about-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  aspect-ratio: 16/10;
}
.about-content h2 { font-size: 28px; font-weight: 700; margin: 0 0 12px; line-height: 1.3; }
.about-content p { color: var(--text-sub); font-size: 15px; margin: 0 0 16px; }
.feature-list { list-style: none; padding: 0; margin: 20px 0 0; }
.feature-list li {
  position: relative;
  padding-left: 28px;
  margin-bottom: 12px;
  color: var(--text-sub);
  font-size: 15px;
}
.feature-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 7px;
  width: 16px;
  height: 16px;
  background: var(--primary-light);
  border-radius: 50%;
}
.feature-list li::after {
  content: '\2713';
  position: absolute;
  left: 3px;
  top: 5px;
  font-size: 11px;
  color: var(--primary);
  font-weight: 700;
}
@media (min-width: 768px) {
  .about-grid { grid-template-columns: 1.05fr 1fr; }
  .about-content h2 { font-size: 30px; }
}
/* 内容方向 */
.topic-grid { display: grid; grid-template-columns: 1fr; gap: 22px; }
@media (min-width: 640px) {
  .topic-grid { grid-template-columns: 1fr 1fr; }
}
.topic-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 30px 26px;
  box-shadow: var(--shadow);
  transition: transform .2s ease, box-shadow .2s ease;
}
.topic-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.topic-icon {
  display: inline-flex;
  width: 52px;
  height: 52px;
  align-items: center;
  justify-content: center;
  border-radius: 14px;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 22px;
  margin-bottom: 18px;
}
.topic-card h3 { font-size: 18px; font-weight: 600; margin: 0 0 10px; }
.topic-card p { color: var(--text-sub); font-size: 14px; line-height: 1.7; margin: 0; }
/* 数据摘要 */
.stats-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
@media (min-width: 768px) {
  .stats-grid { grid-template-columns: repeat(4, 1fr); }
}
.stat-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 30px 20px;
  text-align: center;
  transition: transform .2s ease, box-shadow .2s ease;
}
.stat-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.stat-num {
  font-size: 34px;
  font-weight: 700;
  color: var(--primary);
  font-variant-numeric: tabular-nums;
  line-height: 1.2;
}
.stat-label { color: var(--text-sub); font-size: 14px; margin-top: 8px; }
/* 步骤 */
.steps-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px;
  margin-top: 4px;
}
@media (min-width: 768px) {
  .steps-grid { grid-template-columns: repeat(3, 1fr); }
}
.step-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 26px;
  box-shadow: var(--shadow);
  position: relative;
  transition: transform .2s ease, box-shadow .2s ease;
}
.step-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-hover); }
.step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 46px;
  border-radius: 12px;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 18px;
  font-weight: 800;
  margin-bottom: 18px;
}
.step-card h3 { font-size: 18px; font-weight: 600; margin: 0 0 10px; }
.step-card p { color: var(--text-sub); font-size: 14px; line-height: 1.7; margin: 0; }
@media (min-width: 768px) {
  .steps-grid .step-card:not(:last-child)::after {
    content: '\2192';
    position: absolute;
    right: -17px;
    top: 50%;
    transform: translateY(-50%);
    color: #C9D6E3;
    font-size: 20px;
    z-index: 2;
  }
}
/* CTA */
.cta-box {
  background: linear-gradient(135deg, #1E56C6, #2D6CDF 60%, #3E8BFF);
  border-radius: 24px;
  padding: 48px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 36px;
  box-shadow: 0 10px 36px rgba(45, 108, 223, 0.32);
}
.cta-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 5px 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.14);
  color: #D7E7FF;
  font-size: 13px;
  font-weight: 500;
  margin-bottom: 14px;
}
.cta-copy h2 {
  color: #fff;
  font-size: 28px;
  font-weight: 800;
  line-height: 1.3;
  margin: 0 0 12px;
}
.cta-copy p { color: #D7E7FF; font-size: 15px; margin: 0 0 24px; max-width: 460px; }
.cta-form { display: flex; flex-direction: column; gap: 12px; align-items: stretch; }
.cta-label { display: flex; align-items: center; gap: 8px; color: #E9F4FF; font-size: 14px; font-weight: 600; margin-bottom: 2px; }
.cta-form input {
  height: 48px;
  padding: 0 16px;
  border-radius: 10px;
  border: 1px solid rgba(255, 255, 255, 0.35);
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
  font-size: 15px;
  outline: none;
  transition: all .2s ease;
}
.cta-form input::placeholder { color: #B7D0F0; }
.cta-form input:focus {
  border-color: var(--neon);
  background: rgba(255, 255, 255, 0.18);
  box-shadow: 0 0 0 3px rgba(40, 216, 255, 0.25);
}
.cta-form .btn { height: 48px; }
.cta-success {
  color: #E9F4FF;
  font-size: 15px;
  background: rgba(255, 255, 255, 0.12);
  padding: 18px;
  border-radius: 10px;
  border: 1px dashed rgba(255, 255, 255, 0.5);
  text-align: center;
}
@media (min-width: 992px) {
  .cta-box { grid-template-columns: 1.1fr 0.9fr; align-items: center; }
}
@media (max-width: 767px) {
  .cta-box { padding: 32px 24px; }
  .cta-copy h2 { font-size: 23px; }
}
/* FAQ */
.faq-wrap { max-width: 860px; margin: 0 auto; }
.faq-item {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  margin-bottom: 14px;
  box-shadow: var(--shadow);
  overflow: hidden;
  transition: box-shadow .2s ease, border-color .2s ease;
}
.faq-item.open { box-shadow: var(--shadow-hover); border-color: #C6DEFF; }
.faq-q {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 20px 24px;
  font-weight: 600;
  font-size: 16px;
  color: var(--text);
  text-align: left;
  transition: color .2s ease, background .2s ease;
}
.faq-q:hover { background: var(--bg); color: var(--primary); }
.faq-q i {
  color: var(--primary);
  font-size: 16px;
  transition: transform .3s ease;
  flex-shrink: 0;
  margin-left: 12px;
}
.faq-item.open .faq-q i { transform: rotate(45deg); }
.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height .35s ease;
}
.faq-item.open .faq-a { max-height: 400px; }
.faq-a-inner { padding: 0 24px 20px; color: var(--text-sub); font-size: 15px; line-height: 1.75; }
/* 页脚 */
.site-footer {
  background: var(--dark);
  color: #8A9DB0;
  padding: 64px 0 0;
}
.footer-title {
  color: #E9F4FF;
  font-weight: 600;
  font-size: 16px;
  margin-bottom: 18px;
}
.footer-link {
  display: block;
  color: #8A9DB0;
  font-size: 14px;
  padding: 6px 0;
  text-decoration: none;
  transition: color .2s ease;
}
.footer-link:hover { color: var(--neon); }
.copyright {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 20px 0;
  margin-top: 24px;
  color: #6D829C;
  text-align: center;
  font-size: 13px;
}