/* roulang page: index */
:root {
      --primary: #2f5bff;
      --primary-dark: #1e3fbf;
      --primary-light: #5b7dff;
      --secondary: #06b6d4;
      --accent: #10b981;
      --ink: #0b132b;
      --gray-bg: #f3f6fc;
      --card-bg: #ffffff;
      --text-main: #17233c;
      --text-muted: #5c6b84;
      --border: #e4e9f2;
      --radius: 14px;
      --radius-lg: 22px;
      --shadow-sm: 0 2px 10px rgba(11, 19, 43, 0.05);
      --shadow-md: 0 10px 30px rgba(11, 19, 43, 0.08);
      --shadow-lg: 0 20px 50px rgba(11, 19, 43, 0.12);
      --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    }

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

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

    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
      background: var(--gray-bg);
      color: var(--text-main);
      line-height: 1.7;
      font-size: 16px;
    }

    img {
      max-width: 100%;
      display: inline-block;
      vertical-align: middle;
    }

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

    ul,
    ol {
      list-style: none;
    }

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

    .container,
    .grid-container {
      max-width: 1280px;
      margin: 0 auto;
      padding-left: 24px;
      padding-right: 24px;
      width: 100%;
    }

    .section {
      padding: 88px 0;
    }

    .grid-margin-x {
      margin-left: -12px;
      margin-right: -12px;
    }

    .grid-margin-x>.cell {
      padding-left: 12px;
      padding-right: 12px;
      margin-bottom: 24px;
    }

    .section-head {
      margin-bottom: 50px;
    }

    .section-head.centered {
      text-align: center;
      max-width: 720px;
      margin-left: auto;
      margin-right: auto;
    }

    .section-head.left-align {
      max-width: 640px;
    }

    .section-tag {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: rgba(47, 91, 255, 0.08);
      color: var(--primary);
      font-weight: 600;
      font-size: 14px;
      letter-spacing: 0.5px;
      padding: 6px 16px;
      border-radius: 999px;
      margin-bottom: 16px;
      text-transform: uppercase;
    }

    .section-tag-light {
      background: rgba(255, 255, 255, 0.15);
      color: #ffffff;
    }

    .section-head h2 {
      font-size: clamp(28px, 3.4vw, 42px);
      line-height: 1.25;
      color: var(--ink);
      font-weight: 800;
      letter-spacing: -0.02em;
      margin-bottom: 14px;
    }

    .section-head p {
      font-size: 16px;
      color: var(--text-muted);
      line-height: 1.75;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 12px 26px;
      border-radius: 999px;
      font-weight: 600;
      font-size: 15px;
      line-height: 1.2;
      border: 2px solid transparent;
      cursor: pointer;
      transition: all var(--transition);
      text-align: center;
      white-space: nowrap;
    }

    .btn i {
      font-size: 14px;
    }

    .btn-primary {
      background: var(--primary);
      color: #fff;
      box-shadow: 0 6px 20px rgba(47, 91, 255, 0.28);
    }

    .btn-primary:hover {
      background: var(--primary-dark);
      box-shadow: 0 10px 28px rgba(47, 91, 255, 0.35);
      transform: translateY(-2px);
      color: #fff;
    }

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

    .btn-outline:hover {
      background: var(--primary);
      color: #fff;
      transform: translateY(-2px);
    }

    .btn-light {
      background: #fff;
      color: var(--ink);
      box-shadow: 0 10px 30px rgba(0, 0, 0, 0.18);
    }

    .btn-light:hover {
      background: #f1f5ff;
      transform: translateY(-2px);
      color: var(--ink);
    }

    .btn-outline-light {
      border-color: rgba(255, 255, 255, 0.7);
      color: #fff;
      background: transparent;
    }

    .btn-outline-light:hover {
      background: rgba(255, 255, 255, 0.14);
      border-color: #fff;
      color: #fff;
      transform: translateY(-2px);
    }

    .btn-sm {
      padding: 9px 20px;
      font-size: 14px;
    }

    .btn-lg {
      padding: 15px 34px;
      font-size: 16px;
    }

    .badge {
      display: inline-flex;
      align-items: center;
      padding: 5px 14px;
      border-radius: 999px;
      font-size: 13px;
      font-weight: 600;
      letter-spacing: 0.3px;
    }

    .badge-blue {
      background: rgba(47, 91, 255, 0.1);
      color: var(--primary);
    }

    .badge-green {
      background: rgba(16, 185, 129, 0.12);
      color: #0d9488;
    }

    .badge-warning {
      background: rgba(245, 158, 11, 0.15);
      color: #d97706;
    }

    /* ========== Header ========== */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      background: rgba(255, 255, 255, 0.94);
      backdrop-filter: blur(14px);
      -webkit-backdrop-filter: blur(14px);
      border-bottom: 1px solid var(--border);
      box-shadow: 0 4px 20px rgba(11, 19, 43, 0.04);
    }

    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 76px;
      gap: 20px;
    }

    .site-brand {
      font-size: 22px;
      font-weight: 800;
      color: var(--ink);
      letter-spacing: -0.5px;
      display: inline-flex;
      align-items: center;
      gap: 10px;
    }

    .site-brand::before {
      content: "";
      width: 30px;
      height: 30px;
      border-radius: 9px;
      background: linear-gradient(135deg, var(--primary), var(--secondary));
      box-shadow: 0 6px 14px rgba(47, 91, 255, 0.3);
    }

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

    .nav-item {
      position: relative;
      padding: 10px 16px;
      font-size: 15px;
      font-weight: 600;
      color: var(--text-muted);
      border-radius: 999px;
      transition: all var(--transition);
    }

    .nav-item:hover {
      color: var(--primary);
      background: rgba(47, 91, 255, 0.06);
    }

    .nav-item.active {
      color: var(--primary);
      background: rgba(47, 91, 255, 0.08);
    }

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

    .nav-toggle {
      display: none;
      width: 44px;
      height: 44px;
      border-radius: 12px;
      background: rgba(47, 91, 255, 0.1);
      color: var(--primary);
      font-size: 20px;
      cursor: pointer;
      align-items: center;
      justify-content: center;
      transition: background var(--transition);
    }

    .nav-toggle:hover {
      background: rgba(47, 91, 255, 0.2);
    }

    /* ========== Hero ========== */
    .hero {
      position: relative;
      min-height: 620px;
      display: flex;
      align-items: center;
      background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
      overflow: hidden;
    }

    .hero::before {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(100deg, rgba(11, 19, 43, 0.95) 0%, rgba(11, 19, 43, 0.78) 55%, rgba(47, 91, 255, 0.55) 100%);
    }

    .hero-container {
      position: relative;
      z-index: 2;
      padding-top: 80px;
      padding-bottom: 80px;
    }

    .hero-content {
      max-width: 780px;
    }

    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: rgba(255, 255, 255, 0.12);
      border: 1px solid rgba(255, 255, 255, 0.2);
      color: #fff;
      font-size: 14px;
      font-weight: 600;
      padding: 9px 20px;
      border-radius: 999px;
      margin-bottom: 26px;
      backdrop-filter: blur(8px);
    }

    .hero-badge i {
      color: var(--secondary);
    }

    .hero h1 {
      font-size: clamp(36px, 6vw, 64px);
      font-weight: 900;
      color: #fff;
      line-height: 1.15;
      letter-spacing: -0.03em;
      margin-bottom: 18px;
    }

    .hero h1 span {
      display: block;
      background: linear-gradient(120deg, #a5b8ff, #6ee7f9);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
    }

    .hero-desc {
      color: rgba(255, 255, 255, 0.82);
      font-size: 18px;
      line-height: 1.85;
      max-width: 620px;
      margin-bottom: 34px;
    }

    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      margin-bottom: 50px;
    }

    .hero-metrics {
      display: flex;
      flex-wrap: wrap;
      gap: 0;
      border-top: 1px solid rgba(255, 255, 255, 0.18);
      padding-top: 30px;
    }

    .hm-item {
      flex: 1;
      min-width: 150px;
      padding-right: 24px;
    }

    .hm-item strong {
      display: block;
      font-size: 30px;
      font-weight: 800;
      color: #fff;
      line-height: 1.2;
    }

    .hm-item span {
      font-size: 14px;
      color: rgba(255, 255, 255, 0.68);
    }

    /* ========== Intro ========== */
    .intro-section {
      background: #fff;
    }

    .intro-media {
      position: relative;
      border-radius: 22px;
      overflow: hidden;
      box-shadow: var(--shadow-lg);
    }

    .intro-media img {
      width: 100%;
      height: 380px;
      object-fit: cover;
      display: block;
    }

    .intro-media-badge {
      position: absolute;
      right: 20px;
      bottom: 20px;
      background: rgba(255, 255, 255, 0.92);
      backdrop-filter: blur(8px);
      color: var(--ink);
      font-weight: 700;
      font-size: 14px;
      padding: 10px 20px;
      border-radius: 999px;
      box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
    }

    .lead-text {
      font-size: 17px;
      color: var(--text-muted);
      margin-bottom: 28px;
    }

    .check-list {
      margin-bottom: 30px;
    }

    .check-list li {
      display: flex;
      gap: 14px;
      padding: 12px 0;
      border-bottom: 1px solid var(--border);
    }

    .check-list li:last-child {
      border-bottom: none;
    }

    .check-list i {
      font-size: 22px;
      color: var(--accent);
      margin-top: 3px;
    }

    .check-list strong {
      font-size: 16px;
      color: var(--ink);
      font-weight: 700;
    }

    .check-list p {
      font-size: 14px;
      color: var(--text-muted);
    }

    /* ========== Features ========== */
    .feature-section {
      background: var(--gray-bg);
    }

    .feature-card {
      background: var(--card-bg);
      border-radius: var(--radius-lg);
      padding: 34px 26px;
      height: 100%;
      border: 1px solid var(--border);
      box-shadow: var(--shadow-sm);
      transition: all var(--transition);
      position: relative;
      overflow: hidden;
    }

    .feature-card::after {
      content: "";
      position: absolute;
      left: 0;
      top: 0;
      width: 100%;
      height: 4px;
      background: linear-gradient(90deg, var(--primary), var(--secondary));
      transform: scaleX(0);
      transform-origin: left;
      transition: transform 0.4s ease;
    }

    .feature-card:hover {
      transform: translateY(-8px);
      box-shadow: var(--shadow-md);
      border-color: rgba(47, 91, 255, 0.25);
    }

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

    .feature-icon {
      width: 60px;
      height: 60px;
      border-radius: 18px;
      display: flex;
      align-items: center;
      justify-content: center;
      background: rgba(47, 91, 255, 0.1);
      color: var(--primary);
      font-size: 24px;
      margin-bottom: 22px;
      transition: background var(--transition), color var(--transition);
    }

    .feature-card:hover .feature-icon {
      background: var(--primary);
      color: #fff;
    }

    .feature-card h3 {
      font-size: 19px;
      font-weight: 700;
      color: var(--ink);
      margin-bottom: 12px;
    }

    .feature-card p {
      font-size: 15px;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* ========== Category Cards ========== */
    .category-section {
      background: #fff;
    }

    .category-card {
      display: block;
      height: 100%;
      background: #fff;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      transition: all var(--transition);
    }

    .category-card:hover {
      transform: translateY(-8px);
      box-shadow: var(--shadow-lg);
      border-color: rgba(47, 91, 255, 0.3);
    }

    .category-cover {
      height: 200px;
      background-size: cover;
      background-position: center center;
      position: relative;
    }

    .category-cover::after {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(180deg, rgba(11, 19, 43, 0) 40%, rgba(11, 19, 43, 0.2) 100%);
    }

    .category-body {
      padding: 26px 26px 28px;
      position: relative;
    }

    .category-body .badge {
      margin-bottom: 14px;
    }

    .category-body h3 {
      font-size: 21px;
      font-weight: 700;
      color: var(--ink);
      margin-bottom: 10px;
    }

    .category-body p {
      font-size: 15px;
      color: var(--text-muted);
      line-height: 1.7;
      margin-bottom: 18px;
    }

    .category-link {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      font-weight: 600;
      font-size: 15px;
      color: var(--primary);
    }

    .category-card:hover .category-link {
      gap: 14px;
    }

    .category-link i {
      font-size: 13px;
      transition: transform var(--transition);
    }

    /* ========== Metrics ========== */
    .metrics-section {
      background: var(--ink);
      position: relative;
      overflow: hidden;
    }

    .metrics-section::before {
      content: "";
      position: absolute;
      inset: 0;
      background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
      opacity: 0.15;
    }

    .metrics-section .container,
    .metrics-section .grid-container {
      position: relative;
      z-index: 2;
    }

    .metrics-panel {
      background: rgba(255, 255, 255, 0.04);
      border: 1px solid rgba(255, 255, 255, 0.09);
      border-radius: 30px;
      padding: 58px 50px;
      backdrop-filter: blur(10px);
    }

    .metrics-info {
      text-align: center;
      max-width: 600px;
      margin: 0 auto 44px;
    }

    .metrics-info h2 {
      font-size: clamp(26px, 3vw, 38px);
      color: #fff;
      font-weight: 800;
      margin-bottom: 10px;
    }

    .metrics-info p {
      color: rgba(255, 255, 255, 0.6);
      font-size: 15px;
    }

    .metric-item {
      text-align: center;
      padding: 28px 16px;
      background: rgba(255, 255, 255, 0.06);
      border-radius: 20px;
      border: 1px solid rgba(255, 255, 255, 0.06);
      transition: background var(--transition), transform var(--transition);
      height: 100%;
    }

    .metric-item:hover {
      background: rgba(255, 255, 255, 0.12);
      transform: translateY(-4px);
    }

    .metric-item strong {
      display: block;
      font-size: 36px;
      font-weight: 900;
      background: linear-gradient(120deg, #ffffff, #7ce0ff);
      -webkit-background-clip: text;
      -webkit-text-fill-color: transparent;
      background-clip: text;
      line-height: 1.2;
      margin-bottom: 6px;
    }

    .metric-item span {
      font-size: 14px;
      color: rgba(255, 255, 255, 0.7);
    }

    /* ========== News / CMS ========== */
    .updates-section {
      background: var(--gray-bg);
    }

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

    .news-card {
      background: var(--card-bg);
      border-radius: var(--radius-lg);
      padding: 30px 28px;
      border: 1px solid var(--border);
      box-shadow: var(--shadow-sm);
      transition: all var(--transition);
      display: flex;
      flex-direction: column;
    }

    .news-card:hover {
      transform: translateY(-6px);
      box-shadow: var(--shadow-md);
      border-color: rgba(47, 91, 255, 0.25);
    }

    .news-card-top {
      display: flex;
      justify-content: space-between;
      align-items: center;
      margin-bottom: 20px;
      font-size: 13px;
      color: var(--text-muted);
    }

    .news-cat {
      background: rgba(47, 91, 255, 0.1);
      color: var(--primary);
      padding: 4px 12px;
      border-radius: 999px;
      font-weight: 600;
      font-size: 13px;
    }

    .news-date {
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }

    .news-title {
      font-size: 18px;
      font-weight: 700;
      line-height: 1.5;
      color: var(--ink);
      margin-bottom: 12px;
    }

    .news-title a {
      color: var(--ink);
      transition: color var(--transition);
    }

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

    .news-excerpt {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
      flex: 1;
      margin-bottom: 18px;
      display: -webkit-box;
      -webkit-line-clamp: 3;
      -webkit-box-orient: vertical;
      overflow: hidden;
    }

    .news-link {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      font-weight: 600;
      font-size: 14px;
      color: var(--primary);
    }

    .news-link i {
      font-size: 13px;
      transition: transform var(--transition);
    }

    .news-card:hover .news-link i {
      transform: translateX(4px);
    }

    .empty-tip {
      text-align: center;
      padding: 60px 20px;
      background: #fff;
      border-radius: var(--radius-lg);
      border: 1px dashed var(--border);
      color: var(--text-muted);
      font-size: 16px;
    }

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

    /* ========== Process ========== */
    .process-section {
      background: #fff;
      position: relative;
    }

    .process-card {
      position: relative;
      background: var(--gray-bg);
      border-radius: var(--radius-lg);
      padding: 38px 28px 34px;
      height: 100%;
      border: 1px solid var(--border);
      transition: all var(--transition);
      overflow: hidden;
    }

    .process-card:hover {
      background: #fff;
      box-shadow: var(--shadow-md);
      transform: translateY(-6px);
      border-color: rgba(47, 91, 255, 0.3);
    }

    .process-num {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 52px;
      height: 52px;
      border-radius: 16px;
      background: var(--primary);
      color: #fff;
      font-size: 18px;
      font-weight: 800;
      margin-bottom: 22px;
      box-shadow: 0 8px 18px rgba(47, 91, 255, 0.3);
    }

    .process-card h3 {
      font-size: 18px;
      font-weight: 700;
      color: var(--ink);
      margin-bottom: 10px;
    }

    .process-card p {
      font-size: 14px;
      color: var(--text-muted);
      line-height: 1.7;
    }

    /* ========== FAQ ========== */
    .faq-section {
      background: var(--gray-bg);
    }

    .faq-contact {
      display: flex;
      align-items: center;
      gap: 16px;
      background: #fff;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border);
      padding: 22px 24px;
      box-shadow: var(--shadow-sm);
      margin-top: 30px;
      flex-wrap: wrap;
    }

    .faq-contact i {
      font-size: 26px;
      color: var(--primary);
    }

    .faq-contact strong {
      color: var(--ink);
      font-size: 16px;
    }

    .faq-contact p {
      font-size: 14px;
      color: var(--text-muted);
    }

    .faq-contact .btn {
      margin-left: auto;
    }

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

    .faq-item {
      background: #fff;
      border: 1px solid var(--border);
      border-radius: 16px;
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      transition: border-color var(--transition), box-shadow var(--transition);
    }

    .faq-item:hover {
      border-color: rgba(47, 91, 255, 0.3);
      box-shadow: var(--shadow-md);
    }

    .faq-item summary {
      cursor: pointer;
      padding: 22px 26px;
      font-size: 16px;
      font-weight: 600;
      color: var(--ink);
      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::after {
      content: "\f078";
      font-family: "Font Awesome 6 Free";
      font-weight: 900;
      font-size: 14px;
      color: var(--primary);
      transition: transform var(--transition);
      flex-shrink: 0;
    }

    .faq-item[open] summary::after {
      transform: rotate(180deg);
    }

    .faq-item p {
      padding: 0 26px 24px;
      color: var(--text-muted);
      font-size: 15px;
      line-height: 1.75;
    }

    /* ========== CTA ========== */
    .cta-section {
      background: var(--ink);
      position: relative;
      padding: 0;
    }

    .cta-panel {
      position: relative;
      border-radius: 0;
      padding: 90px 0;
      background-size: cover;
      background-position: center;
      overflow: hidden;
      text-align: center;
    }

    .cta-overlay {
      position: absolute;
      inset: 0;
      background: rgba(11, 19, 43, 0.85);
    }

    .cta-content {
      position: relative;
      z-index: 2;
      max-width: 720px;
      margin: 0 auto;
      padding: 0 24px;
    }

    .cta-content h2 {
      font-size: clamp(28px, 4vw, 44px);
      color: #fff;
      font-weight: 800;
      margin-bottom: 14px;
      letter-spacing: -0.02em;
    }

    .cta-content p {
      color: rgba(255, 255, 255, 0.72);
      font-size: 17px;
      margin-bottom: 30px;
    }

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

    /* ========== Footer ========== */
    .site-footer {
      background: #081120;
      color: #9aa5b8;
      padding-top: 70px;
      font-size: 14px;
    }

    .footer-top {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1fr;
      gap: 40px;
      padding-bottom: 50px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }

    .footer-logo {
      font-size: 22px;
      font-weight: 800;
      color: #fff;
      letter-spacing: -0.3px;
      display: inline-flex;
      align-items: center;
      gap: 10px;
      margin-bottom: 16px;
    }

    .footer-logo::before {
      content: "";
      width: 24px;
      height: 24px;
      border-radius: 8px;
      background: linear-gradient(135deg, var(--primary), var(--secondary));
    }

    .footer-brand p {
      line-height: 1.75;
      margin-bottom: 20px;
      max-width: 340px;
    }

    .footer-social {
      display: flex;
      gap: 12px;
    }

    .footer-social a {
      width: 40px;
      height: 40px;
      border-radius: 12px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      background: rgba(255, 255, 255, 0.08);
      color: #cbd5e1;
      transition: all var(--transition);
    }

    .footer-social a:hover {
      background: var(--primary);
      color: #fff;
      transform: translateY(-3px);
    }

    .footer-col h4 {
      color: #fff;
      font-size: 16px;
      font-weight: 700;
      margin-bottom: 20px;
    }

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

    .footer-col ul a {
      color: #9aa5b8;
      transition: color var(--transition), padding-left var(--transition);
    }

    .footer-col ul a:hover {
      color: #fff;
      padding-left: 4px;
    }

    .footer-bottom {
      padding: 24px 0;
      display: flex;
      flex-wrap: wrap;
      justify-content: space-between;
      align-items: center;
      gap: 10px;
      color: #64748b;
      font-size: 13px;
    }

    .footer-bottom a {
      color: #94a3b8;
    }

    .footer-bottom a:hover {
      color: #fff;
    }

    .footer-tech {
      letter-spacing: 0.5px;
    }

    /* ========== Focus / a11y ========== */
    a:focus-visible,
    button:focus-visible,
    summary:focus-visible {
      outline: 3px solid rgba(47, 91, 255, 0.45);
      outline-offset: 3px;
      border-radius: 6px;
    }

    /* ========== Responsive ========== */
    @media (max-width: 1024px) {
      .section {
        padding: 68px 0;
      }

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

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

      .hero {
        min-height: 540px;
      }

      .hero h1 {
        font-size: 44px;
      }

      .nav-toggle {
        display: inline-flex;
      }

      .site-nav {
        position: fixed;
        top: 0;
        right: -100%;
        width: 320px;
        height: 100vh;
        height: 100dvh;
        background: #fff;
        display: flex;
        flex-direction: column;
        align-items: flex-start;
        padding: 90px 30px 30px;
        box-shadow: -10px 0 40px rgba(11, 19, 43, 0.12);
        transition: right 0.35s cubic-bezier(0.4, 0, 0.2, 1);
        gap: 8px;
        overflow-y: auto;
        z-index: 1200;
      }

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

      .nav-item {
        width: 100%;
        padding: 14px 18px;
        font-size: 16px;
        border-radius: 12px;
        color: var(--ink);
      }

      .nav-item:hover {
        background: rgba(47, 91, 255, 0.08);
        color: var(--primary);
      }

      .nav-item.active {
        background: rgba(47, 91, 255, 0.1);
      }

      .site-header::after {
        content: "";
        position: fixed;
        inset: 0;
        background: rgba(11, 19, 43, 0.5);
        opacity: 0;
        visibility: hidden;
        transition: opacity 0.3s ease;
        z-index: 1100;
      }

      .site-header.nav-open::after {
        opacity: 1;
        visibility: visible;
      }

      .header-cta {
        display: none;
      }
    }

    @media (max-width: 768px) {
      .section {
        padding: 56px 0;
      }

      .grid-margin-x>.cell {
        margin-bottom: 18px;
      }

      .hero-container {
        padding-top: 60px;
        padding-bottom: 60px;
      }

      .hero {
        min-height: 500px;
      }

      .hero h1 {
        font-size: 36px;
      }

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

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

      .hero-actions .btn {
        justify-content: center;
      }

      .hm-item strong {
        font-size: 26px;
      }

      .news-grid {
        grid-template-columns: 1fr;
        gap: 18px;
      }

      .metrics-panel {
        padding: 40px 24px;
        border-radius: 22px;
      }

      .metric-item {
        padding: 20px 12px;
      }

      .metric-item strong {
        font-size: 28px;
      }

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

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

      .cta-panel {
        padding: 60px 0;
      }

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

      .cta-actions .btn {
        justify-content: center;
      }
    }

    @media (max-width: 520px) {
      .container,
      .grid-container {
        padding-left: 18px;
        padding-right: 18px;
      }

      .section {
        padding: 46px 0;
      }

      .section-head {
        margin-bottom: 34px;
      }

      .header-inner {
        height: 66px;
      }

      .site-brand {
        font-size: 18px;
      }

      .btn,
      .btn-lg {
        width: 100%;
        justify-content: center;
      }

      .hero h1 {
        font-size: 32px;
      }

      .hero-metrics {
        gap: 14px;
      }

      .hm-item {
        min-width: 42%;
        padding-right: 0;
      }

      .intro-media img {
        height: 260px;
      }

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

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

      .news-card {
        padding: 24px 20px;
      }
    }

/* roulang page: category1 */
:root {
  --primary: #0e5fd8;
  --primary-dark: #09489f;
  --primary-light: #3b82f6;
  --accent: #00c2ff;
  --accent-2: #22d3a5;
  --dark: #0b1524;
  --dark-2: #101f36;
  --bg: #f4f8fc;
  --surface: #ffffff;
  --text: #1e293b;
  --text-weak: #64748b;
  --border: #e2e8f0;
  --radius: 18px;
  --radius-sm: 12px;
  --shadow: 0 10px 30px rgba(14, 95, 216, 0.08);
  --shadow-lg: 0 20px 50px rgba(11, 21, 36, 0.16);
  --transition: all 0.3s ease;
  --font-base: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-base);
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  height: auto;
  display: inline-block;
  vertical-align: middle;
}

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

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

input, textarea {
  font-family: inherit;
}

ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.grid-container {
  max-width: 1200px;
  padding-left: 20px;
  padding-right: 20px;
}

.section {
  padding: 96px 0;
}

.section-head {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 56px;
}

.section-eyebrow {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--primary);
  background: rgba(14, 95, 216, 0.08);
  padding: 6px 16px;
  border-radius: 50px;
  margin-bottom: 14px;
}

.section-head h2 {
  font-size: 38px;
  line-height: 1.25;
  font-weight: 800;
  color: var(--dark);
  margin: 12px 0 16px;
  letter-spacing: -0.5px;
}

.section-head p {
  font-size: 16px;
  color: var(--text-weak);
  margin: 0;
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 30px;
  border-radius: 50px;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.2;
  transition: var(--transition);
  border: 2px solid transparent;
  letter-spacing: 0.2px;
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: #fff;
  box-shadow: 0 10px 26px rgba(14, 95, 216, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 34px rgba(14, 95, 216, 0.4);
  color: #fff;
}

.btn-primary:active {
  transform: translateY(0);
  box-shadow: 0 6px 16px rgba(14, 95, 216, 0.28);
}

.btn-outline {
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
  border-color: rgba(255, 255, 255, 0.6);
  backdrop-filter: blur(6px);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.22);
  border-color: #fff;
  color: #fff;
  transform: translateY(-2px);
}

.btn-sm {
  padding: 10px 22px;
  font-size: 14px;
}

.btn-block {
  width: 100%;
}

/* ===== Header ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(226, 232, 240, 0.8);
  transition: box-shadow 0.3s ease;
}

.site-header.scrolled {
  box-shadow: 0 8px 30px rgba(11, 21, 36, 0.08);
}

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

.site-brand {
  font-size: 22px;
  font-weight: 800;
  color: var(--dark);
  letter-spacing: -0.3px;
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.site-brand::before {
  content: '';
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  box-shadow: 0 0 0 4px rgba(14, 95, 216, 0.12);
  flex-shrink: 0;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 36px;
}

.nav-item {
  font-size: 15px;
  font-weight: 500;
  color: var(--text);
  position: relative;
  padding: 8px 2px;
}

.nav-item::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  transition: width 0.3s ease;
}

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

.nav-item:hover::after,
.nav-item.active::after {
  width: 100%;
}

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

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

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: rgba(14, 95, 216, 0.08);
  color: var(--primary);
  font-size: 20px;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.nav-toggle:hover {
  background: rgba(14, 95, 216, 0.16);
}

/* ===== Page Hero ===== */
.page-hero {
  position: relative;
  padding: 176px 0 96px;
  background-size: cover;
  background-position: center;
  overflow: hidden;
  color: #fff;
}

.page-hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, rgba(9, 20, 42, 0.92) 0%, rgba(14, 95, 216, 0.72) 60%, rgba(0, 194, 255, 0.35) 100%);
}

.page-hero::after {
  content: '';
  position: absolute;
  bottom: -120px;
  right: -80px;
  width: 420px;
  height: 420px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  pointer-events: none;
}

.page-hero-inner {
  position: relative;
  z-index: 2;
  max-width: 820px;
}

.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  background: rgba(255, 255, 255, 0.14);
  border: 1px solid rgba(255, 255, 255, 0.22);
  backdrop-filter: blur(8px);
  padding: 8px 18px;
  border-radius: 50px;
  color: #eaf2ff;
  margin-bottom: 24px;
}

.hero-kicker i {
  color: var(--accent);
}

.page-hero h1 {
  font-size: 54px;
  line-height: 1.12;
  font-weight: 900;
  letter-spacing: -1px;
  margin: 0 0 20px;
  background: linear-gradient(90deg, #fff 30%, #bdeaff 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.page-hero p {
  font-size: 17px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.88);
  max-width: 620px;
  margin: 0 0 36px;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}

.hero-breadcrumb {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.7);
  margin-top: 28px;
}

.hero-breadcrumb a:hover {
  color: #fff;
}

.hero-breadcrumb i {
  font-size: 11px;
  color: rgba(255, 255, 255, 0.5);
}

/* ===== Entry Intro ===== */
.entry-intro {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}

.intro-media {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.intro-media img {
  width: 100%;
  height: 480px;
  object-fit: cover;
  display: block;
}

.intro-media .media-badge {
  position: absolute;
  left: 20px;
  bottom: 20px;
  background: rgba(255, 255, 255, 0.16);
  backdrop-filter: blur(14px);
  border: 1px solid rgba(255, 255, 255, 0.25);
  padding: 10px 20px;
  border-radius: 50px;
  font-size: 13px;
  font-weight: 600;
  color: #fff;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.intro-media .media-badge i {
  color: var(--accent);
}

.intro-content {
  padding: 24px 0 24px 24px;
}

.intro-content h2 {
  font-size: 34px;
  line-height: 1.3;
  font-weight: 800;
  color: var(--dark);
  margin: 0 0 20px;
  letter-spacing: -0.5px;
}

.intro-content p {
  font-size: 15px;
  line-height: 1.85;
  color: var(--text-weak);
  margin: 0 0 18px;
}

.intro-list {
  margin-top: 28px;
}

.intro-list li {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 14px 0;
  border-bottom: 1px solid #edf2f7;
}

.intro-list li:last-child {
  border-bottom: none;
}

.intro-list .list-icon {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: linear-gradient(135deg, rgba(14, 95, 216, 0.1), rgba(0, 194, 255, 0.1));
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
}

.intro-list .list-text h4 {
  font-size: 15px;
  font-weight: 700;
  color: var(--dark);
  margin: 0 0 4px;
}

.intro-list .list-text p {
  font-size: 14px;
  line-height: 1.6;
  color: var(--text-weak);
  margin: 0;
}

/* ===== Features ===== */
.features-section {
  background: var(--bg);
}

.feature-card {
  background: var(--surface);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  margin-bottom: 20px;
  transition: var(--transition);
  border: 1px solid rgba(226, 232, 240, 0.5);
  height: 100%;
  display: flex;
  flex-direction: column;
}

.feature-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(14, 95, 216, 0.15);
}

.feature-media {
  position: relative;
  height: 180px;
  overflow: hidden;
}

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

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

.feature-media::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(11, 21, 36, 0) 40%, rgba(11, 21, 36, 0.45) 100%);
}

.feature-icon {
  position: absolute;
  left: 24px;
  bottom: -26px;
  z-index: 2;
  width: 56px;
  height: 56px;
  border-radius: 16px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #fff;
  font-size: 22px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 10px 24px rgba(14, 95, 216, 0.35);
}

.feature-body {
  padding: 42px 26px 26px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.feature-tag {
  display: inline-block;
  align-self: flex-start;
  font-size: 12px;
  font-weight: 700;
  color: var(--primary);
  background: rgba(14, 95, 216, 0.08);
  padding: 5px 14px;
  border-radius: 50px;
  margin-bottom: 12px;
  letter-spacing: 0.5px;
}

.feature-body h3 {
  font-size: 19px;
  font-weight: 700;
  color: var(--dark);
  margin: 0 0 10px;
  letter-spacing: -0.2px;
}

.feature-body p {
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-weak);
  margin: 0;
}

/* ===== Stats Section ===== */
.stats-section {
  position: relative;
  padding: 90px 0;
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
  color: #fff;
}

.stats-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(9, 20, 42, 0.94), rgba(11, 34, 68, 0.88));
}

.stats-inner {
  position: relative;
  z-index: 2;
}

.stat-item {
  text-align: center;
  padding: 24px 16px;
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(8px);
  transition: var(--transition);
  margin-bottom: 16px;
}

.stat-item:hover {
  background: rgba(255, 255, 255, 0.12);
  transform: translateY(-4px);
}

.stat-num {
  display: block;
  font-size: 44px;
  font-weight: 900;
  line-height: 1.15;
  letter-spacing: -1px;
  background: linear-gradient(135deg, #ffffff 20%, var(--accent) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 8px;
}

.stat-label {
  font-size: 14px;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.75);
  letter-spacing: 2px;
  text-transform: uppercase;
}

/* ===== Steps ===== */
.steps-section {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}

.step-card {
  text-align: center;
  padding: 40px 26px;
  border-radius: var(--radius);
  background: var(--bg);
  border: 1px solid transparent;
  transition: var(--transition);
  height: 100%;
  position: relative;
  margin-bottom: 16px;
}

.step-card:hover {
  background: var(--surface);
  border-color: rgba(14, 95, 216, 0.12);
  box-shadow: var(--shadow);
  transform: translateY(-6px);
}

.step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 64px;
  height: 64px;
  border-radius: 20px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #fff;
  font-size: 22px;
  font-weight: 800;
  box-shadow: 0 12px 28px rgba(14, 95, 216, 0.28);
  margin-bottom: 22px;
}

.step-card h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--dark);
  margin: 0 0 12px;
}

.step-card p {
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-weak);
  margin: 0;
}

/* ===== FAQ ===== */
.faq-section {
  background: var(--bg);
}

.faq-wrap {
  max-width: 820px;
  margin: 0 auto;
}

.faq-item {
  background: var(--surface);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  margin-bottom: 14px;
  overflow: hidden;
  transition: var(--transition);
}

.faq-item.active {
  border-color: rgba(14, 95, 216, 0.24);
  box-shadow: var(--shadow);
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 22px 26px;
  font-size: 16px;
  font-weight: 600;
  color: var(--dark);
  text-align: left;
  transition: var(--transition);
}

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

.faq-question i {
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: rgba(14, 95, 216, 0.08);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  transition: transform 0.3s ease;
}

.faq-item.active .faq-question i {
  transform: rotate(180deg);
  background: var(--primary);
  color: #fff;
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease;
}

.faq-answer p {
  padding: 0 26px 24px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--text-weak);
  border-top: 1px solid #f1f5f9;
  margin: 0;
  padding-top: 18px;
}

/* ===== CTA ===== */
.cta-section {
  position: relative;
  padding: 110px 0;
  background-size: cover;
  background-position: center;
  color: #fff;
  text-align: center;
  overflow: hidden;
}

.cta-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, rgba(9, 20, 42, 0.92), rgba(14, 95, 216, 0.78));
}

.cta-inner {
  position: relative;
  z-index: 2;
  max-width: 720px;
  margin: 0 auto;
}

.cta-inner h2 {
  font-size: 40px;
  font-weight: 900;
  letter-spacing: -0.8px;
  margin: 0 0 18px;
  line-height: 1.25;
}

.cta-inner p {
  font-size: 17px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.85);
  margin: 0 0 36px;
}

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

.cta-note {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.65);
  margin-top: 22px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.cta-note i {
  color: var(--accent);
}

/* ===== Footer ===== */
.site-footer {
  background: var(--dark);
  color: rgba(255, 255, 255, 0.72);
  padding: 80px 0 0;
  position: relative;
}

.footer-top {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 54px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-brand .footer-logo {
  font-size: 24px;
  font-weight: 800;
  color: #fff;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
}

.footer-brand .footer-logo::before {
  content: '';
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--primary-light));
  box-shadow: 0 0 0 4px rgba(0, 194, 255, 0.18);
}

.footer-brand p {
  font-size: 14px;
  line-height: 1.8;
  max-width: 320px;
  margin: 0 0 24px;
  color: rgba(255, 255, 255, 0.6);
}

.footer-social {
  display: flex;
  gap: 12px;
}

.footer-social a {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 0.8);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  transition: var(--transition);
}

.footer-social a:hover {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
  transform: translateY(-3px);
}

.footer-col h4 {
  font-size: 16px;
  font-weight: 700;
  color: #fff;
  margin: 0 0 22px;
  letter-spacing: 0.5px;
}

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

.footer-col ul li a {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.62);
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.footer-col ul li a::before {
  content: '';
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--accent);
  opacity: 0.6;
  transition: var(--transition);
}

.footer-col ul li a:hover {
  color: #fff;
  padding-left: 6px;
}

.footer-col ul li a:hover::before {
  opacity: 1;
  box-shadow: 0 0 8px rgba(0, 194, 255, 0.6);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 28px 0 32px;
  flex-wrap: wrap;
}

.footer-bottom p {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.5);
  margin: 0;
}

.footer-tech {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: rgba(255, 255, 255, 0.55);
}

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

/* ===== Focus States ===== */
a:focus-visible,
button:focus-visible {
  outline: 3px solid rgba(14, 95, 216, 0.45);
  outline-offset: 3px;
  border-radius: 6px;
}

/* ===== Responsive ===== */
@media screen and (max-width: 1024px) {
  .section {
    padding: 76px 0;
  }

  .page-hero {
    padding: 150px 0 76px;
  }

  .page-hero h1 {
    font-size: 44px;
  }

  .section-head h2 {
    font-size: 32px;
  }

  .footer-top {
    grid-template-columns: 1.4fr 1fr 1fr;
    gap: 36px;
  }

  .intro-media img {
    height: 400px;
  }
}

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

  .site-brand {
    font-size: 19px;
  }

  .site-nav {
    position: fixed;
    top: 64px;
    right: -100%;
    width: 280px;
    height: calc(100vh - 64px);
    background: #fff;
    flex-direction: column;
    align-items: flex-start;
    padding: 32px 28px;
    gap: 8px;
    box-shadow: -16px 0 40px rgba(11, 21, 36, 0.14);
    transition: right 0.35s ease;
    z-index: 999;
  }

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

  .site-nav .nav-item {
    width: 100%;
    padding: 12px 0;
    font-size: 16px;
    border-bottom: 1px solid #f1f5f9;
  }

  .site-nav .nav-item::after {
    display: none;
  }

  .site-nav .nav-item.active {
    color: var(--primary);
    border-bottom-color: rgba(14, 95, 216, 0.15);
  }

  .nav-toggle {
    display: inline-flex;
  }

  .header-cta {
    display: none;
  }

  .page-hero {
    padding: 128px 0 64px;
  }

  .page-hero h1 {
    font-size: 36px;
  }

  .page-hero p {
    font-size: 15px;
  }

  .section {
    padding: 60px 0;
  }

  .section-head {
    margin-bottom: 40px;
  }

  .section-head h2 {
    font-size: 28px;
  }

  .intro-content {
    padding: 24px 0;
  }

  .intro-media img {
    height: 320px;
  }

  .stats-section {
    padding: 64px 0;
    background-attachment: scroll;
  }

  .stat-num {
    font-size: 34px;
  }

  .footer-top {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
    padding-bottom: 40px;
  }

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

  .cta-inner h2 {
    font-size: 30px;
  }
}

@media screen and (max-width: 520px) {
  .grid-container {
    padding-left: 16px;
    padding-right: 16px;
  }

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

  .page-hero p {
    font-size: 14px;
  }

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

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

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

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

  .footer-col h4 {
    margin-bottom: 14px;
  }

  .feature-card {
    margin-bottom: 14px;
  }

  .stat-item {
    padding: 18px 12px;
  }

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

  .faq-question {
    padding: 18px 18px;
    font-size: 15px;
  }

  .faq-answer p {
    padding: 0 18px 20px;
    padding-top: 16px;
  }

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

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

  .footer-bottom p {
    font-size: 12.5px;
  }
}

/* roulang page: article */
:root {
  --primary: #1a2e4b;
  --primary-dark: #0e1b2e;
  --primary-light: #2a466b;
  --accent: #c9a05a;
  --accent-light: #e6c986;
  --bg: #f5f7fa;
  --bg-white: #ffffff;
  --text: #16283c;
  --text-muted: #6b7a8f;
  --border: #e2e8f0;
  --radius: 14px;
  --radius-lg: 22px;
  --shadow: 0 12px 32px rgba(20, 40, 66, 0.09);
  --shadow-hover: 0 20px 48px rgba(20, 40, 66, 0.16);
  --transition: all 0.3s ease;
  --font-main: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-main);
  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: var(--transition); }
ul, ol { list-style: none; }
button { border: none; background: none; cursor: pointer; font-family: inherit; }
input, textarea { font-family: inherit; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 28px; }
.grid-container { max-width: 1200px; }

/* == Buttons == */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 12px 26px;
  border-radius: 50px;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.4;
  border: 2px solid transparent;
  transition: var(--transition);
  cursor: pointer;
  white-space: nowrap;
}
.btn:focus-visible {
  outline: 3px solid rgba(201, 160, 90, 0.4);
  outline-offset: 3px;
}
.btn-primary {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}
.btn-primary:hover {
  background: var(--primary-light);
  border-color: var(--primary-light);
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(26, 46, 75, 0.28);
}
.btn-accent {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}
.btn-accent:hover {
  background: var(--accent-light);
  border-color: var(--accent-light);
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(201, 160, 90, 0.35);
}
.btn-outline {
  background: transparent;
  color: var(--primary);
  border-color: var(--primary);
}
.btn-outline:hover {
  background: var(--primary);
  color: #fff;
  transform: translateY(-2px);
}
.btn-sm { padding: 8px 18px; font-size: 14px; }
.btn-lg { padding: 15px 38px; font-size: 16px; }
.btn-block { width: 100%; }

/* == Header == */
.site-header {
  position: sticky;
  top: 0;
  z-index: 999;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(226, 232, 240, 0.7);
  box-shadow: 0 2px 20px rgba(20, 40, 66, 0.05);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
  gap: 20px;
}
.site-brand {
  font-size: 21px;
  font-weight: 800;
  color: var(--primary);
  letter-spacing: 0.5px;
  position: relative;
  flex-shrink: 0;
}
.site-brand::after {
  content: '';
  position: absolute;
  bottom: -3px;
  left: 0;
  width: 28px;
  height: 3px;
  background: var(--accent);
  border-radius: 4px;
}
.site-nav {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: 1;
  justify-content: center;
}
.nav-item {
  position: relative;
  padding: 9px 16px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text);
  border-radius: 8px;
}
.nav-item:hover {
  color: var(--primary);
  background: rgba(26, 46, 75, 0.06);
}
.nav-item.active {
  color: var(--primary);
  font-weight: 700;
}
.nav-item.active::after {
  content: '';
  position: absolute;
  bottom: 2px;
  left: 16px;
  right: 16px;
  height: 2px;
  background: var(--accent);
  border-radius: 3px;
}
.header-actions {
  display: flex;
  align-items: center;
  gap: 14px;
}
.header-cta {
  font-size: 13px;
  padding: 8px 20px;
}
.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: #fff;
  color: var(--primary);
  font-size: 18px;
}

/* == Reading Progress == */
.reading-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  width: 0;
  background: linear-gradient(90deg, var(--accent), var(--accent-light));
  z-index: 1000;
  transition: width 0.08s linear;
  border-radius: 0 3px 3px 0;
}

/* == Article Hero == */
.article-hero {
  position: relative;
  background: linear-gradient(135deg, rgba(14, 27, 46, 0.88), rgba(26, 46, 75, 0.78)), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  color: #fff;
  padding: 92px 0 76px;
  overflow: hidden;
}
.article-hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, rgba(201, 160, 90, 0.12), transparent 60%);
  pointer-events: none;
}
.article-hero-content {
  position: relative;
  z-index: 2;
}
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 22px;
}
.breadcrumb a {
  color: rgba(255, 255, 255, 0.85);
  transition: color 0.3s;
}
.breadcrumb a:hover { color: #fff; }
.breadcrumb i { font-size: 10px; color: rgba(255, 255, 255, 0.5); }
.breadcrumb span {
  color: var(--accent-light);
  max-width: 280px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.article-category-badge {
  display: inline-block;
  background: rgba(201, 160, 90, 0.22);
  border: 1px solid rgba(201, 160, 90, 0.55);
  color: var(--accent-light);
  font-size: 13px;
  font-weight: 600;
  padding: 5px 15px;
  border-radius: 20px;
  margin-bottom: 16px;
  letter-spacing: 0.5px;
}
.article-hero h1 {
  font-size: 38px;
  line-height: 1.28;
  font-weight: 800;
  max-width: 820px;
  margin-bottom: 18px;
  letter-spacing: 0.5px;
}
.article-hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.8);
}
.article-hero-meta span {
  display: inline-flex;
  align-items: center;
  gap: 7px;
}
.article-hero-meta i { color: var(--accent-light); font-size: 13px; }

/* == Article Main == */
.article-main {
  position: relative;
  z-index: 5;
  margin-top: -42px;
  padding-bottom: 20px;
}
.article-card {
  background: #fff;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  padding: 44px 46px;
  margin-bottom: 26px;
}
.article-body {
  font-size: 16.5px;
  line-height: 1.95;
  color: #2b3c50;
}
.article-body h2 {
  font-size: 26px;
  font-weight: 800;
  color: var(--primary);
  margin: 38px 0 16px;
  padding-bottom: 12px;
  border-bottom: 2px solid rgba(201, 160, 90, 0.25);
}
.article-body h3 {
  font-size: 21px;
  font-weight: 700;
  color: var(--primary);
  margin: 30px 0 12px;
}
.article-body p {
  margin-bottom: 18px;
}
.article-body ul,
.article-body ol {
  margin: 0 0 22px 22px;
  line-height: 1.95;
}
.article-body ul { list-style: disc; }
.article-body ol { list-style: decimal; }
.article-body li { margin-bottom: 8px; }
.article-body blockquote {
  border-left: 4px solid var(--accent);
  background: rgba(201, 160, 90, 0.09);
  padding: 16px 22px;
  border-radius: 0 12px 12px 0;
  color: var(--text);
  font-style: italic;
  margin: 24px 0;
}
.article-body img {
  border-radius: 14px;
  box-shadow: 0 10px 24px rgba(20, 40, 66, 0.11);
  margin: 24px 0;
}
.article-body a {
  color: #1e6091;
  border-bottom: 1px solid rgba(30, 96, 145, 0.3);
}
.article-body a:hover {
  color: var(--accent);
  border-color: var(--accent);
}
.article-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 22px 0;
  font-size: 15px;
}
.article-body table th,
.article-body table td {
  border: 1px solid var(--border);
  padding: 12px 16px;
  text-align: left;
}
.article-body table th {
  background: var(--primary);
  color: #fff;
  font-weight: 600;
}

.article-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 32px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
}
.article-tag {
  display: inline-block;
  background: #f1f4f8;
  color: var(--text-muted);
  font-size: 13px;
  padding: 6px 15px;
  border-radius: 20px;
  transition: var(--transition);
}
.article-tag:hover {
  background: var(--primary);
  color: #fff;
}

.article-pagination {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  background: #fff;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 22px 26px;
}
.article-pagination a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
}
.article-pagination a:hover { color: var(--accent); }

/* == Not Found == */
.not-found-card {
  background: #fff;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  padding: 64px 40px;
  text-align: center;
  margin-bottom: 26px;
}
.not-found-card i {
  font-size: 52px;
  color: var(--accent);
  margin-bottom: 18px;
}
.not-found-card h2 {
  font-size: 26px;
  color: var(--primary);
  margin-bottom: 10px;
}
.not-found-card p {
  color: var(--text-muted);
  margin-bottom: 22px;
}

/* == Sidebar == */
.article-sidebar { margin-top: 18px; }
.side-card {
  background: #fff;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 26px;
  margin-bottom: 22px;
}
.side-card h3 {
  font-size: 17px;
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.side-card h3::before {
  content: '';
  width: 4px;
  height: 18px;
  background: var(--accent);
  border-radius: 4px;
}
.side-card p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 16px;
}
.side-nav li {
  border-bottom: 1px solid #eef1f5;
}
.side-nav li:last-child { border-bottom: none; }
.side-nav a {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 11px 4px;
  font-size: 14.5px;
  color: var(--text);
  font-weight: 500;
  transition: var(--transition);
}
.side-nav a i {
  font-size: 11px;
  color: var(--accent);
  transition: transform 0.3s;
}
.side-nav a:hover {
  color: var(--primary);
  padding-left: 9px;
}
.side-nav a:hover i {
  transform: translateX(4px);
}

/* == Related Section == */
.related-section {
  padding: 76px 0 60px;
  background: var(--bg-white);
  border-top: 1px solid var(--border);
}
.section-header {
  text-align: center;
  margin-bottom: 44px;
}
.section-tag {
  display: inline-block;
  background: rgba(201, 160, 90, 0.14);
  color: var(--accent);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 1px;
  padding: 5px 16px;
  border-radius: 20px;
  margin-bottom: 12px;
  text-transform: none;
}
.section-header h2 {
  font-size: 32px;
  font-weight: 800;
  color: var(--primary);
  margin-top: 6px;
}
.related-item { margin-bottom: 24px; }
.related-card {
  background: #fff;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
  display: block;
  height: 100%;
  transition: var(--transition);
  border: 1px solid rgba(226, 232, 240, 0.5);
}
.related-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-hover);
}
.related-thumb {
  position: relative;
  overflow: hidden;
  height: 172px;
}
.related-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.related-card:hover .related-thumb img {
  transform: scale(1.05);
}
.related-cat {
  position: absolute;
  left: 14px;
  bottom: 14px;
  background: rgba(20, 40, 66, 0.75);
  backdrop-filter: blur(6px);
  color: #fff;
  font-size: 12px;
  font-weight: 600;
  padding: 4px 13px;
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.14);
}
.related-body {
  padding: 20px 22px 24px;
}
.related-body h3 {
  font-size: 16px;
  font-weight: 700;
  color: var(--primary);
  line-height: 1.5;
  margin-bottom: 9px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.related-body p {
  font-size: 13.5px;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 14px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.related-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 12.5px;
  color: #94a3b8;
  border-top: 1px solid #eef1f5;
  padding-top: 13px;
}
.related-meta i { font-size: 11px; transition: transform 0.3s; }
.related-card:hover .related-meta i { transform: translateX(5px); }

/* == CTA Section == */
.cta-section {
  background: linear-gradient(135deg, var(--primary-dark), var(--primary-light)), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  background-blend-mode: overlay;
  color: #fff;
  padding: 80px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-section::before {
  content: '';
  position: absolute;
  width: 520px;
  height: 520px;
  border-radius: 50%;
  background: rgba(201, 160, 90, 0.12);
  top: -240px;
  right: -160px;
}
.cta-section h2 {
  font-size: 32px;
  font-weight: 800;
  margin-bottom: 14px;
  position: relative;
  z-index: 2;
}
.cta-section p {
  font-size: 15.5px;
  color: rgba(255, 255, 255, 0.85);
  max-width: 640px;
  margin: 0 auto 30px;
  position: relative;
  z-index: 2;
}

/* == FAQ Section == */
.faq-section {
  padding: 76px 0 60px;
  background: var(--bg);
}
.faq-list {
  max-width: 820px;
  margin: 0 auto;
}
.faq-item {
  background: #fff;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  margin-bottom: 14px;
  overflow: hidden;
  border: 1px solid rgba(226, 232, 240, 0.5);
}
.faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 19px 26px;
  font-size: 16px;
  font-weight: 600;
  color: var(--primary);
  cursor: pointer;
  list-style: none;
  transition: var(--transition);
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: '\f078';
  font-family: 'Font Awesome 6 Free';
  font-weight: 900;
  font-size: 13px;
  color: var(--accent);
  transition: transform 0.3s ease;
  flex-shrink: 0;
}
.faq-item[open] summary::after {
  transform: rotate(180deg);
}
.faq-item[open] summary {
  background: rgba(201, 160, 90, 0.06);
}
.faq-item .faq-answer {
  padding: 4px 26px 22px;
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.8;
  border-top: 1px dashed var(--border);
  padding-top: 16px;
}

/* == Footer == */
.site-footer {
  background: var(--primary-dark);
  color: rgba(255, 255, 255, 0.75);
  padding: 70px 0 0;
  border-top: 4px solid var(--accent);
}
.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 42px;
}
.footer-brand .footer-logo {
  font-size: 23px;
  font-weight: 800;
  color: #fff;
  display: inline-block;
  margin-bottom: 14px;
}
.footer-brand p {
  font-size: 14px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.65);
  max-width: 340px;
  margin-bottom: 20px;
}
.footer-social {
  display: flex;
  gap: 10px;
}
.footer-social a {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255, 255, 255, 0.8);
  font-size: 15px;
  transition: var(--transition);
}
.footer-social a:hover {
  background: var(--accent);
  color: #fff;
  transform: translateY(-3px);
}
.footer-col h4 {
  font-size: 15px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 18px;
  position: relative;
  padding-bottom: 10px;
}
.footer-col h4::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 22px;
  height: 2px;
  background: var(--accent);
  border-radius: 3px;
}
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul a {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.65);
  transition: var(--transition);
}
.footer-col ul a:hover {
  color: var(--accent);
  padding-left: 5px;
}
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 22px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.5);
}
.footer-tech i { color: var(--accent); margin-right: 5px; }

/* == Responsive == */
@media screen and (max-width: 1024px) {
  .site-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: #fff;
    flex-direction: column;
    align-items: stretch;
    padding: 10px 20px 20px;
    box-shadow: 0 20px 40px rgba(20, 40, 66, 0.12);
    border-top: 1px solid var(--border);
    display: none;
    z-index: 998;
  }
  .site-nav.open {
    display: flex;
  }
  .nav-toggle {
    display: flex;
  }
  .nav-item {
    padding: 12px 16px;
    font-size: 15px;
  }
  .nav-item.active::after {
    left: 16px;
    width: 24px;
  }
  .article-hero { padding: 72px 0 64px; }
  .article-hero h1 { font-size: 32px; }
  .article-card { padding: 34px 32px; }
  .footer-top {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
}

@media screen and (max-width: 768px) {
  .header-inner { gap: 12px; }
  .header-cta { display: none; }
  .article-hero { padding: 60px 0 54px; }
  .article-hero h1 { font-size: 27px; }
  .article-hero-meta { gap: 12px; font-size: 13px; }
  .article-main { margin-top: -24px; }
  .article-card { padding: 26px 20px; border-radius: 16px; }
  .article-body { font-size: 15.5px; }
  .article-body h2 { font-size: 23px; }
  .related-card .related-thumb { height: 150px; }
  .section-header h2 { font-size: 26px; }
  .cta-section h2 { font-size: 27px; }
  .footer-top {
    grid-template-columns: 1fr;
    gap: 30px;
  }
  .footer-bottom {
    justify-content: center;
    text-align: center;
  }
}

@media screen and (max-width: 520px) {
  .container { padding: 0 20px; }
  .site-brand { font-size: 18px; }
  .breadcrumb span { max-width: 160px; }
  .article-hero h1 { font-size: 23px; }
  .article-pagination {
    flex-direction: column;
    text-align: center;
  }
  .footer-brand p { max-width: 100%; }
}

/* roulang page: category3 */
:root {
  --primary: #ff4d3a;
  --primary-dark: #d43a2a;
  --accent: #ffb400;
  --dark: #0d1220;
  --dark-2: #151d2e;
  --bg: #f5f7fb;
  --card: #ffffff;
  --text: #1c2434;
  --muted: #6b7488;
  --border: #e6eaf2;
  --radius: 18px;
  --radius-sm: 12px;
  --shadow: 0 12px 30px rgba(13, 18, 32, .08);
  --shadow-hover: 0 18px 40px rgba(13, 18, 32, .14);
  --space: 96px;
  --font: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font);
  color: var(--text);
  background: var(--bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

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

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

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

.grid-container {
  max-width: 1200px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, .9);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 6px 24px rgba(13, 18, 32, .04);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}

.site-brand {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--dark);
  letter-spacing: .5px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.site-brand::before {
  content: "";
  width: 14px;
  height: 26px;
  border-radius: 5px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  box-shadow: 0 6px 16px rgba(255, 77, 58, .28);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 6px;
}

.nav-item {
  display: inline-block;
  padding: 10px 16px;
  border-radius: 10px;
  font-size: .95rem;
  font-weight: 600;
  color: var(--text);
  transition: background .25s ease, color .25s ease, box-shadow .25s ease;
}

.nav-item:hover {
  background: rgba(255, 77, 58, .06);
  color: var(--primary);
}

.nav-item.active {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 8px 18px rgba(255, 77, 58, .25);
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-radius: 12px;
  border: 1px solid transparent;
  font-weight: 700;
  font-size: .95rem;
  padding: 12px 22px;
  cursor: pointer;
  transition: all .25s ease;
}

.btn-primary {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 10px 22px rgba(255, 77, 58, .25);
}

.btn-primary:hover {
  background: var(--primary-dark);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 14px 28px rgba(255, 77, 58, .3);
}

.btn-outline-light {
  background: transparent;
  border: 1px solid rgba(255, 255, 255, .7);
  color: #fff;
}

.btn-outline-light:hover {
  background: rgba(255, 255, 255, .12);
  color: #fff;
  transform: translateY(-2px);
}

.btn-light {
  background: #fff;
  color: var(--dark);
}

.btn-light:hover {
  background: #f2f4f8;
  color: var(--dark);
  transform: translateY(-2px);
}

.btn-sm {
  padding: 9px 16px;
  font-size: .88rem;
  border-radius: 10px;
}

.nav-toggle {
  display: none;
  background: var(--dark);
  color: #fff;
  border: none;
  width: 42px;
  height: 42px;
  border-radius: 10px;
  font-size: 1.1rem;
  cursor: pointer;
  align-items: center;
  justify-content: center;
}

.page-banner {
  position: relative;
  background-size: cover;
  background-position: center;
  padding: 100px 0 90px;
  color: #fff;
  overflow: hidden;
}

.page-banner::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(115deg, rgba(13, 18, 32, .92) 15%, rgba(13, 18, 32, .68) 55%, rgba(255, 77, 58, .28) 100%);
}

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

.breadcrumb {
  font-size: .9rem;
  color: rgba(255, 255, 255, .75);
  margin-bottom: 26px;
  display: flex;
  gap: 8px;
  align-items: center;
  flex-wrap: wrap;
}

.breadcrumb a {
  color: rgba(255, 255, 255, .8);
}

.breadcrumb a:hover {
  color: #fff;
  text-decoration: underline;
}

.breadcrumb span {
  color: rgba(255, 255, 255, .5);
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border-radius: 999px;
  font-size: .85rem;
  font-weight: 700;
  background: rgba(255, 255, 255, .14);
  border: 1px solid rgba(255, 255, 255, .22);
  color: #fff;
}

.badge-light {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--dark);
}

.banner-content h1 {
  font-size: clamp(2rem, 4vw, 3.3rem);
  line-height: 1.18;
  font-weight: 900;
  margin: 18px 0 16px;
}

.banner-content p {
  max-width: 720px;
  font-size: 1.12rem;
  color: rgba(255, 255, 255, .88);
  margin-bottom: 30px;
}

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

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

.section-alt {
  background: #fff;
}

.section-dark {
  background: var(--dark);
  color: #fff;
}

.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 30px;
  margin-bottom: 44px;
}

.section-head.centered {
  display: block;
  text-align: center;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: .86rem;
  font-weight: 800;
  letter-spacing: .5px;
  color: var(--primary);
  text-transform: uppercase;
  margin-bottom: 10px;
}

.eyebrow::before {
  content: "";
  width: 24px;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
}

.eyebrow.light {
  color: var(--accent);
}

.section-head.light .eyebrow::before {
  background: var(--accent);
}

.section-head h2 {
  font-size: clamp(1.6rem, 3vw, 2.3rem);
  font-weight: 900;
  color: var(--dark);
  line-height: 1.2;
  margin: 0;
}

.section-head p {
  color: var(--muted);
  margin: 12px 0 0;
  max-width: 640px;
}

.section-head.light h2,
.section-dark h2 {
  color: #fff;
}

.section-head.light p,
.section-dark p {
  color: rgba(255, 255, 255, .72);
}

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

.stat-card {
  background: var(--card);
  border-radius: var(--radius);
  padding: 28px 24px;
  text-align: center;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  transition: transform .3s ease, box-shadow .3s ease;
  position: relative;
  overflow: hidden;
}

.stat-card::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  opacity: 0;
  transition: opacity .3s ease;
}

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

.stat-card:hover::after {
  opacity: 1;
}

.stat-icon {
  width: 54px;
  height: 54px;
  border-radius: 16px;
  background: rgba(255, 77, 58, .1);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
  font-size: 1.5rem;
}

.stat-number {
  font-size: 2.2rem;
  font-weight: 900;
  color: var(--dark);
  line-height: 1.1;
}

.stat-label {
  color: var(--muted);
  margin-top: 8px;
  font-size: .95rem;
}

.help-card {
  background: #fff;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  transition: all .3s ease;
  height: 100%;
  display: flex;
  flex-direction: column;
}

.help-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
  border-color: #f5d0c8;
}

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

.card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .5s ease;
}

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

.card-img .badge {
  position: absolute;
  top: 14px;
  left: 14px;
  z-index: 2;
  background: rgba(13, 18, 32, .72);
  border: none;
}

.card-body {
  padding: 22px 22px 26px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.card-body h3 {
  margin: 0 0 10px;
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--dark);
}

.card-body p {
  color: var(--muted);
  font-size: .95rem;
  margin: 0 0 16px;
  flex: 1;
}

.card-link {
  font-weight: 800;
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: .9rem;
}

.card-link:hover {
  gap: 12px;
  color: var(--primary-dark);
}

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

.step-card {
  background: var(--dark-2);
  border: 1px solid rgba(255, 255, 255, .08);
  border-radius: var(--radius);
  padding: 28px 24px;
  position: relative;
  transition: all .3s ease;
}

.step-card:hover {
  transform: translateY(-4px);
  border-color: rgba(255, 180, 0, .4);
}

.step-num {
  font-size: 2.4rem;
  font-weight: 900;
  color: transparent;
  -webkit-text-stroke: 2px rgba(255, 255, 255, .18);
  line-height: 1;
}

.step-card h3 {
  color: #fff;
  font-size: 1.1rem;
  margin: 20px 0 10px;
  font-weight: 800;
}

.step-card p {
  color: rgba(255, 255, 255, .65);
  font-size: .93rem;
  margin: 0;
}

.step-arrow {
  position: absolute;
  top: 28px;
  right: 18px;
  color: var(--accent);
  opacity: .7;
}

.feature-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
  align-items: center;
}

.rounded-img {
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  object-fit: cover;
  width: 100%;
}

.check-list {
  list-style: none;
  margin: 22px 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.check-list li {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  font-size: .98rem;
  color: var(--dark);
}

.check-list li i {
  color: var(--primary);
  margin-top: 4px;
}

.tip-panel {
  background: #fff8ef;
  border-left: 4px solid var(--accent);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: 18px 20px;
  margin: 22px 0;
  color: #6d5b2f;
  font-size: .95rem;
}

.tip-panel strong {
  color: var(--dark);
}

.faq-layout {
  max-width: 920px;
  margin: 0 auto;
}

.accordion {
  background: transparent;
}

.accordion-item {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  margin-bottom: 14px;
  overflow: hidden;
  box-shadow: 0 4px 14px rgba(13, 18, 32, .04);
}

.accordion-item .accordion-title {
  background: #fff;
  border-bottom: 1px solid transparent;
  padding: 18px 22px;
  font-size: 1rem;
  font-weight: 800;
  color: var(--dark);
}

.accordion-item .accordion-title:hover {
  background: #fafbff;
  color: var(--primary);
}

.accordion-item.is-active .accordion-title {
  color: var(--primary);
  border-bottom: 1px solid var(--border);
}

.accordion-content {
  padding: 18px 22px;
  color: var(--muted);
  background: #fff;
  font-size: .95rem;
}

.cta-section {
  position: relative;
  background-size: cover;
  background-position: center;
  padding: 90px 0;
}

.cta-section::before {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(13, 18, 32, .82);
}

.cta-panel {
  position: relative;
  z-index: 2;
  text-align: center;
  color: #fff;
  max-width: 760px;
  margin: 0 auto;
}

.cta-panel h2 {
  font-size: clamp(1.8rem, 3.6vw, 2.6rem);
  font-weight: 900;
  margin-bottom: 12px;
}

.cta-panel p {
  color: rgba(255, 255, 255, .8);
  font-size: 1.05rem;
  margin-bottom: 28px;
}

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

.site-footer {
  background: var(--dark);
  color: rgba(255, 255, 255, .75);
  padding: 60px 0 0;
}

.footer-top {
  display: grid;
  grid-template-columns: 1.8fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255, 255, 255, .1);
}

.footer-brand .footer-logo {
  font-size: 1.3rem;
  font-weight: 900;
  color: #fff;
}

.footer-brand p {
  font-size: .95rem;
  margin: 14px 0 20px;
  color: rgba(255, 255, 255, .6);
  max-width: 340px;
}

.footer-social {
  display: flex;
  gap: 12px;
}

.footer-social a {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: rgba(255, 255, 255, .08);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1rem;
  transition: all .3s ease;
}

.footer-social a:hover {
  background: var(--primary);
  transform: translateY(-3px);
}

.footer-col h4 {
  color: #fff;
  font-size: 1rem;
  margin: 0 0 16px;
  font-weight: 800;
}

.footer-col ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.footer-col a {
  color: rgba(255, 255, 255, .65);
  font-size: .92rem;
}

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

.footer-bottom {
  padding: 24px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  font-size: .9rem;
  color: rgba(255, 255, 255, .5);
}

@media (max-width: 1024px) {
  :root {
    --space: 72px;
  }

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

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

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

@media (max-width: 768px) {
  .site-nav {
    position: fixed;
    top: 72px;
    left: 15px;
    right: 15px;
    display: none;
    flex-direction: column;
    background: #fff;
    padding: 16px;
    border-radius: 16px;
    box-shadow: var(--shadow-hover);
    border: 1px solid var(--border);
  }

  .site-nav.open {
    display: flex;
  }

  .site-nav .nav-item {
    width: 100%;
    text-align: center;
    padding: 14px;
  }

  .header-cta {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }

  .page-banner {
    padding: 70px 0 60px;
  }

  .banner-content h1 {
    font-size: 2rem;
  }

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

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

@media (max-width: 520px) {
  .stats-grid {
    grid-template-columns: 1fr 1fr;
    gap: 14px;
  }

  .stat-card {
    padding: 20px 12px;
  }

  .stat-number {
    font-size: 1.6rem;
  }

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

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

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

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

  .btn {
    width: 100%;
  }
}

/* roulang page: category2 */
:root {
            --primary: #e8a820;
            --primary-dark: #c78c12;
            --primary-light: #f5c84a;
            --secondary: #111a2b;
            --accent: #ff5a4e;
            --bg-light: #f6f5f1;
            --bg-dark: #0d1420;
            --text: #1c2534;
            --text-muted: #667085;
            --border: #e6e4de;
            --radius: 16px;
            --radius-lg: 28px;
            --shadow-sm: 0 2px 12px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.09);
            --shadow-lg: 0 20px 50px rgba(0, 0, 0, 0.13);
            --section-space: 88px;
        }

        *,
        *::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;
            line-height: 1.7;
            color: var(--text);
            background: var(--bg-light);
            -webkit-font-smoothing: antialiased;
        }

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

        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.2s ease, background 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
        }

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

        h1, h2, h3, h4, h5, h6 {
            line-height: 1.3;
            font-weight: 700;
        }

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

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

        .grid-x {
            display: -webkit-box;
            display: -webkit-flex;
            display: -ms-flexbox;
            display: flex;
            -webkit-flex-flow: row wrap;
            -ms-flex-flow: row wrap;
            flex-flow: row wrap;
        }

        .grid-margin-x {
            margin-left: -12px;
            margin-right: -12px;
        }

        .grid-margin-x > .cell {
            padding-left: 12px;
            padding-right: 12px;
        }

        /* 按钮组件 */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 26px;
            border-radius: 50px;
            font-size: 15px;
            font-weight: 600;
            line-height: 1.4;
            border: 1px solid transparent;
            transition: all 0.25s ease;
            text-align: center;
            white-space: nowrap;
        }

        .btn i {
            font-size: 13px;
        }

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

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

        .btn-primary {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            color: #fff;
            box-shadow: 0 6px 22px rgba(232, 168, 32, 0.35);
        }

        .btn-primary:hover {
            box-shadow: 0 10px 32px rgba(232, 168, 32, 0.45);
            transform: translateY(-2px);
            color: #fff;
        }

        .btn-outline {
            border-color: rgba(255, 255, 255, 0.7);
            color: #fff;
            background: transparent;
            backdrop-filter: blur(4px);
        }

        .btn-outline:hover {
            background: rgba(255, 255, 255, 0.14);
            border-color: #fff;
            color: #fff;
        }

        .btn-dark {
            background: var(--secondary);
            color: #fff;
        }

        .btn-dark:hover {
            background: #1e2a3c;
            transform: translateY(-2px);
        }

        .btn:focus-visible,
        .nav-item:focus-visible,
        a:focus-visible {
            outline: 3px solid rgba(232, 168, 32, 0.45);
            outline-offset: 3px;
        }

        /* 标签/徽章 */
        .badge,
        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 16px;
            border-radius: 50px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.3px;
            background: rgba(232, 168, 32, 0.12);
            color: var(--primary-dark);
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 7px 18px;
            border-radius: 50px;
            font-size: 14px;
            font-weight: 600;
            background: rgba(255, 255, 255, 0.14);
            border: 1px solid rgba(255, 255, 255, 0.3);
            color: #fff;
            backdrop-filter: blur(8px);
            letter-spacing: 0.5px;
        }

        .tag {
            display: inline-flex;
            align-items: center;
            padding: 4px 13px;
            border-radius: 50px;
            font-size: 12px;
            font-weight: 600;
            background: var(--bg-light);
            color: var(--text-muted);
            border: 1px solid var(--border);
            transition: all 0.2s ease;
        }

        .tag-solid {
            background: rgba(232, 168, 32, 0.12);
            color: var(--primary-dark);
            border-color: transparent;
        }

        /* 站点头部导航 */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 999;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 1px 10px rgba(0, 0, 0, 0.02);
        }

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

        .site-brand {
            font-size: 22px;
            font-weight: 800;
            color: var(--secondary);
            letter-spacing: 0.5px;
            background: linear-gradient(135deg, var(--secondary) 0%, #2a3a52 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .site-nav {
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .nav-item {
            padding: 8px 16px;
            border-radius: 10px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-muted);
            position: relative;
        }

        .nav-item:hover {
            color: var(--text);
            background: rgba(0, 0, 0, 0.04);
        }

        .nav-item.active {
            color: var(--primary-dark);
            font-weight: 600;
        }

        .nav-item.active::after {
            content: "";
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 22px;
            height: 3px;
            border-radius: 4px;
            background: var(--primary);
        }

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

        .header-cta {
            display: inline-flex;
        }

        .nav-toggle {
            display: none;
            width: 42px;
            height: 42px;
            border-radius: 12px;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: var(--secondary);
            background: var(--bg-light);
            border: 1px solid var(--border);
            transition: all 0.2s ease;
        }

        .nav-toggle:hover {
            background: #fff;
            border-color: var(--primary);
            color: var(--primary-dark);
        }

        /* Hero 横幅 */
        .page-hero {
            position: relative;
            padding: 130px 0 120px;
            background-size: cover;
            background-position: center;
            background-color: var(--secondary);
            color: #fff;
            overflow: hidden;
        }

        .page-hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(9, 13, 26, 0.88) 0%, rgba(9, 13, 26, 0.60) 50%, rgba(9, 13, 26, 0.30) 100%);
            z-index: 1;
        }

        .page-hero::after {
            content: "";
            position: absolute;
            width: 420px;
            height: 420px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(232, 168, 32, 0.18) 0%, transparent 70%);
            top: -80px;
            right: -60px;
            z-index: 1;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 760px;
        }

        .hero-content h1 {
            font-size: 44px;
            font-weight: 800;
            margin: 18px 0 18px;
            line-height: 1.25;
            letter-spacing: 1px;
        }

        .hero-content h1 .text-accent {
            background: linear-gradient(120deg, var(--primary-light) 0%, var(--primary) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero-content p {
            font-size: 17px;
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: 34px;
            max-width: 640px;
            line-height: 1.8;
        }

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

        .hero-meta-row {
            display: flex;
            flex-wrap: wrap;
            gap: 18px;
            margin-top: 32px;
            padding-top: 28px;
            border-top: 1px solid rgba(255, 255, 255, 0.16);
        }

        .hero-meta-item {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.75);
        }

        .hero-meta-item i {
            color: var(--primary-light);
        }

        /* 面包屑 */
        .breadcrumb-wrap {
            background: #fff;
            border-bottom: 1px solid var(--border);
            padding: 12px 0;
        }

        .breadcrumb-list {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 13px;
            color: var(--text-muted);
        }

        .breadcrumb-list li {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .breadcrumb-list li:not(:last-child)::after {
            content: "/";
            color: #c0c0c0;
            margin-left: 8px;
        }

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

        /* 通用板块 */
        .section {
            padding: var(--section-space) 0;
        }

        .section-light {
            background: #fff;
        }

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

        .section-head {
            max-width: 720px;
            margin: 0 auto 54px;
            text-align: center;
        }

        .section-head .section-tag {
            margin-bottom: 14px;
        }

        .section-head h2 {
            font-size: 34px;
            font-weight: 800;
            margin: 10px 0 14px;
            letter-spacing: 0.5px;
        }

        .section-head p {
            font-size: 16px;
            color: var(--text-muted);
            line-height: 1.8;
        }

        /* 分类卡片 */
        .cards-row {
            margin-bottom: -24px;
        }

        .info-card {
            background: #fff;
            border-radius: var(--radius);
            border: 1px solid var(--border);
            overflow: hidden;
            margin-bottom: 24px;
            height: 100%;
            box-shadow: var(--shadow-sm);
            transition: transform 0.28s ease, box-shadow 0.28s ease;
            display: flex;
            flex-direction: column;
        }

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

        .card-thumb {
            position: relative;
            height: 180px;
            overflow: hidden;
        }

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

        .info-card:hover .card-thumb img {
            transform: scale(1.05);
        }

        .card-thumb .tag {
            position: absolute;
            top: 14px;
            left: 14px;
            background: rgba(255, 255, 255, 0.92);
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
        }

        .card-content {
            padding: 24px 22px 22px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .card-content h3 {
            font-size: 19px;
            font-weight: 700;
            margin-bottom: 10px;
        }

        .card-content p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.75;
            margin-bottom: 16px;
        }

        .card-link {
            margin-top: auto;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary-dark);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .card-link:hover {
            gap: 10px;
            color: var(--primary-dark);
        }

        /* 最新动态列表 */
        .latest-list {
            display: flex;
            flex-direction: column;
            gap: 28px;
        }

        .update-item {
            display: flex;
            gap: 26px;
            background: #fff;
            border-radius: var(--radius);
            border: 1px solid var(--border);
            padding: 22px;
            box-shadow: var(--shadow-sm);
            transition: box-shadow 0.28s ease, transform 0.28s ease;
        }

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

        .update-thumb {
            flex-shrink: 0;
            width: 200px;
            min-height: 150px;
            border-radius: 12px;
            overflow: hidden;
            background: var(--bg-light);
        }

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

        .update-body {
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .update-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 10px;
            font-size: 13px;
            color: var(--text-muted);
        }

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

        .update-body h3 {
            font-size: 19px;
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .update-body h3 a:hover {
            color: var(--primary-dark);
        }

        .update-body p {
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 12px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .update-footer {
            margin-top: auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        /* 数据统计深色块 */
        .stats-band {
            background: var(--bg-dark);
            background-image: url('/assets/images/backpic/back-3.png');
            background-size: cover;
            background-position: center;
            background-attachment: fixed;
            position: relative;
            padding: 86px 0;
        }

        .stats-band::before {
            content: "";
            position: absolute;
            inset: 0;
            background: rgba(13, 20, 32, 0.88);
        }

        .stats-grid {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
        }

        .stat-box {
            text-align: center;
            padding: 30px 16px;
            border-radius: var(--radius);
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.1);
            transition: background 0.25s ease, transform 0.25s ease;
        }

        .stat-box:hover {
            background: rgba(255, 255, 255, 0.09);
            transform: translateY(-4px);
        }

        .stat-num {
            font-size: 44px;
            font-weight: 800;
            background: linear-gradient(120deg, var(--primary-light), var(--primary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            margin-bottom: 8px;
        }

        .stat-label {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.75);
            letter-spacing: 1px;
        }

        /* 更新日志 */
        .timeline {
            position: relative;
            max-width: 860px;
            margin: 0 auto;
            padding-left: 38px;
        }

        .timeline::before {
            content: "";
            position: absolute;
            left: 8px;
            top: 6px;
            bottom: 6px;
            width: 2px;
            background: linear-gradient(to bottom, var(--primary), rgba(232, 168, 32, 0.10));
            border-radius: 2px;
        }

        .timeline-item {
            position: relative;
            margin-bottom: 34px;
        }

        .timeline-item:last-child {
            margin-bottom: 0;
        }

        .timeline-dot {
            position: absolute;
            left: -38px;
            top: 6px;
            width: 18px;
            height: 18px;
            border-radius: 50%;
            background: #fff;
            border: 4px solid var(--primary);
            box-shadow: 0 0 0 5px rgba(232, 168, 32, 0.18);
        }

        .timeline-date {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary-dark);
            margin-bottom: 6px;
            letter-spacing: 0.5px;
        }

        .timeline-body {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 20px 24px;
            box-shadow: var(--shadow-sm);
            transition: box-shadow 0.25s ease, transform 0.25s ease;
        }

        .timeline-body:hover {
            box-shadow: var(--shadow-md);
            transform: translateX(6px);
        }

        .timeline-body h4 {
            font-size: 17px;
            margin-bottom: 6px;
        }

        .timeline-body p {
            font-size: 14px;
            color: var(--text-muted);
        }

        /* FAQ */
        .faq-wrap {
            max-width: 820px;
            margin: 0 auto;
        }

        .faq-item {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            margin-bottom: 16px;
            overflow: hidden;
            transition: border-color 0.25s ease, box-shadow 0.25s ease;
        }

        .faq-item.active {
            border-color: rgba(232, 168, 32, 0.6);
            box-shadow: var(--shadow-sm);
        }

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 20px 24px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            text-align: left;
            transition: color 0.2s ease;
        }

        .faq-question:hover {
            color: var(--primary-dark);
        }

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

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 24px;
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.8;
            border-top: 0 solid transparent;
        }

        .faq-item.active .faq-answer {
            max-height: 280px;
            padding: 0 24px 20px;
            border-top: 1px solid var(--border);
            padding-top: 16px;
            margin-top: 0;
        }

        /* CTA 区块 */
        .cta-band {
            padding: 86px 0;
            background: var(--bg-dark);
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            position: relative;
            text-align: center;
        }

        .cta-band::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(13, 20, 32, 0.92), rgba(13, 20, 32, 0.72));
        }

        .cta-box {
            position: relative;
            z-index: 2;
            max-width: 720px;
            margin: 0 auto;
            color: #fff;
        }

        .cta-box h2 {
            font-size: 34px;
            font-weight: 800;
            margin-bottom: 16px;
        }

        .cta-box p {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.82);
            margin-bottom: 30px;
            line-height: 1.8;
        }

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

        /* 页脚 */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.72);
            padding: 60px 0 0;
            font-size: 14px;
        }

        .footer-top {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 48px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }

        .footer-brand .footer-logo {
            font-size: 22px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 14px;
            display: inline-block;
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.55);
            max-width: 320px;
            margin-bottom: 20px;
        }

        .footer-social {
            display: flex;
            gap: 12px;
        }

        .footer-social a {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: rgba(255, 255, 255, 0.08);
            color: #fff;
            font-size: 14px;
            transition: all 0.25s ease;
        }

        .footer-social a:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-3px);
        }

        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 18px;
            letter-spacing: 0.5px;
        }

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

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

        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.55);
            transition: color 0.2s ease;
        }

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

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 22px 0;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.42);
            flex-wrap: wrap;
        }

        .footer-tech {
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .footer-tech i {
            color: var(--primary);
        }

        /* 响应式 - Foundation 类增强 */
        @media (max-width: 1024px) {
            :root {
                --section-space: 70px;
            }

            .hero-content h1 {
                font-size: 36px;
            }

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

            .update-item {
                flex-direction: column;
            }

            .update-thumb {
                width: 100%;
                height: 190px;
            }
        }

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

            .header-inner {
                height: 64px;
            }

            .site-brand {
                font-size: 19px;
            }

            .site-nav {
                position: absolute;
                top: 64px;
                left: 0;
                right: 0;
                background: #fff;
                flex-direction: column;
                align-items: stretch;
                padding: 14px 22px;
                box-shadow: 0 20px 40px rgba(0, 0, 0, 0.12);
                display: none;
                z-index: 100;
                border-bottom: 1px solid var(--border);
            }

            .site-nav.open {
                display: flex;
            }

            .site-nav .nav-item {
                padding: 14px 8px;
                font-size: 16px;
                border-bottom: 1px solid rgba(0, 0, 0, 0.04);
            }

            .site-nav .nav-item:last-child {
                border-bottom: none;
            }

            .site-nav .nav-item.active::after {
                display: none;
            }

            .site-nav .nav-item.active {
                color: var(--primary-dark);
                background: rgba(232, 168, 32, 0.08);
            }

            .header-cta {
                display: none;
            }

            .nav-toggle {
                display: inline-flex;
            }

            .page-hero {
                padding: 90px 0 80px;
            }

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

            .hero-content p {
                font-size: 15px;
            }

            .section-head h2 {
                font-size: 28px;
            }

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

            .footer-brand {
                grid-column: 1 / -1;
            }
        }

        @media (max-width: 520px) {
            :root {
                --section-space: 56px;
            }

            .grid-container,
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }

            .page-hero {
                padding: 70px 0 64px;
            }

            .hero-content h1 {
                font-size: 26px;
            }

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

            .btn {
                white-space: normal;
            }

            .section-head {
                margin-bottom: 38px;
            }

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

            .info-card .card-thumb {
                height: 150px;
            }

            .update-thumb {
                height: 160px;
            }

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

            .timeline {
                padding-left: 32px;
            }

            .timeline-dot {
                left: -32px;
                width: 14px;
                height: 14px;
            }

            .faq-question {
                padding: 16px 18px;
                font-size: 15px;
            }

            .faq-answer {
                padding: 0 18px;
            }

            .faq-item.active .faq-answer {
                padding: 0 18px 18px;
            }

            .cta-box h2 {
                font-size: 26px;
            }

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

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

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