/* roulang page: index */
:root {
      --bg: #0b0f14;
      --bg-2: #101720;
      --panel: rgba(16, 23, 32, 0.84);
      --panel-2: rgba(20, 29, 39, 0.95);
      --line: rgba(170, 193, 214, 0.16);
      --line-2: rgba(88, 221, 255, 0.28);
      --text: #e8f0f8;
      --muted: #9cb0c4;
      --soft: #6d8298;
      --brand: #43e7d2;
      --brand-2: #8d6bff;
      --warn: #ffb657;
      --danger: #ff6b7a;
      --shadow: 0 18px 50px rgba(0, 0, 0, 0.34);
      --radius: 18px;
      --radius-sm: 14px;
      --container: 1240px;
      --gap: 24px;
      --gap-lg: 36px;
      --transition: 180ms ease;
    }
    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    body {
      margin: 0;
      font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", "Source Han Sans SC", sans-serif;
      background:
        radial-gradient(circle at top left, rgba(67, 231, 210, 0.11), transparent 24%),
        radial-gradient(circle at top right, rgba(141, 107, 255, 0.12), transparent 28%),
        linear-gradient(180deg, #0a0d12 0%, #0d131a 36%, #0a0f14 100%);
      color: var(--text);
      line-height: 1.7;
      letter-spacing: 0.2px;
      overflow-x: hidden;
    }
    body::before {
      content: "";
      position: fixed;
      inset: 0;
      pointer-events: none;
      background-image:
        linear-gradient(rgba(120, 150, 180, 0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(120, 150, 180, 0.04) 1px, transparent 1px);
      background-size: 72px 72px;
      mask-image: linear-gradient(to bottom, rgba(0,0,0,0.26), transparent 78%);
      z-index: -1;
    }
    a { color: inherit; text-decoration: none; transition: color var(--transition), border-color var(--transition), transform var(--transition), opacity var(--transition), background var(--transition), box-shadow var(--transition); }
    img { max-width: 100%; display: block; }
    button, input, textarea, select { font: inherit; }
    ::selection { background: rgba(67, 231, 210, 0.25); color: #fff; }
    .container {
      width: min(var(--container), calc(100% - 32px));
      margin: 0 auto;
    }
    .site-header {
      position: sticky;
      top: 0;
      z-index: 50;
      backdrop-filter: blur(14px);
      background: rgba(8, 12, 17, 0.62);
      border-bottom: 1px solid rgba(148, 173, 199, 0.14);
    }
    .nav-wrap {
      min-height: 78px;
      display: flex;
      align-items: center;
      gap: 20px;
      justify-content: space-between;
    }
    .logo {
      display: inline-flex;
      align-items: center;
      gap: 12px;
      min-width: 242px;
      font-weight: 800;
      letter-spacing: 0.4px;
      color: #f5fbff;
    }
    .logo-mark {
      width: 42px;
      height: 42px;
      border-radius: 14px;
      display: grid;
      place-items: center;
      background: linear-gradient(135deg, rgba(67, 231, 210, 0.18), rgba(141, 107, 255, 0.18));
      border: 1px solid rgba(67, 231, 210, 0.32);
      box-shadow: inset 0 0 0 1px rgba(255,255,255,0.04);
      color: var(--brand);
      font-size: 18px;
    }
    .logo-text {
      display: flex;
      flex-direction: column;
      line-height: 1.15;
    }
    .logo-text strong {
      font-size: 15px;
      font-weight: 800;
    }
    .logo-text span {
      font-size: 12px;
      color: var(--muted);
      margin-top: 4px;
    }
    .nav {
      display: flex;
      align-items: center;
      gap: 8px;
      flex-wrap: wrap;
      justify-content: center;
    }
    .nav a {
      padding: 10px 14px;
      border-radius: 999px;
      color: var(--muted);
      border: 1px solid transparent;
      font-size: 14px;
      white-space: nowrap;
    }
    .nav a:hover,
    .nav a:focus-visible {
      color: #f8fcff;
      border-color: rgba(67, 231, 210, 0.32);
      background: rgba(67, 231, 210, 0.08);
      outline: none;
      transform: translateY(-1px);
    }
    .nav a.active {
      color: #fff;
      background: linear-gradient(135deg, rgba(67, 231, 210, 0.16), rgba(141, 107, 255, 0.14));
      border-color: rgba(67, 231, 210, 0.3);
    }
    .nav-actions {
      display: flex;
      align-items: center;
      gap: 10px;
      min-width: 242px;
      justify-content: flex-end;
    }
    .status-pill,
    .badge,
    .chip {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      border-radius: 999px;
      border: 1px solid rgba(148, 173, 199, 0.18);
      background: rgba(255,255,255,0.03);
      color: var(--muted);
      padding: 8px 12px;
      font-size: 13px;
      line-height: 1;
    }
    .status-pill strong,
    .badge strong,
    .chip strong { color: #fff; font-weight: 700; }
    .hero {
      position: relative;
      padding: 28px 0 12px;
    }
    .hero-panel {
      position: relative;
      overflow: hidden;
      border-radius: 28px;
      border: 1px solid rgba(148, 173, 199, 0.16);
      background:
        linear-gradient(90deg, rgba(8, 12, 16, 0.94) 0%, rgba(8, 12, 16, 0.76) 40%, rgba(8, 12, 16, 0.35) 100%),
        url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
      box-shadow: var(--shadow);
      min-height: 580px;
    }
    .hero-panel::after {
      content: "";
      position: absolute;
      inset: 0;
      background:
        linear-gradient(180deg, rgba(10, 14, 19, 0.14), rgba(10, 14, 19, 0.78)),
        radial-gradient(circle at 75% 30%, rgba(67, 231, 210, 0.16), transparent 28%),
        radial-gradient(circle at 68% 70%, rgba(141, 107, 255, 0.16), transparent 24%);
      pointer-events: none;
    }
    .hero-grid {
      position: relative;
      z-index: 1;
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 30px;
      align-items: end;
      padding: 56px;
      min-height: 580px;
    }
    .hero-copy {
      max-width: 700px;
    }
    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      padding: 8px 14px;
      border-radius: 999px;
      background: rgba(255,255,255,0.06);
      color: #f4fbff;
      border: 1px solid rgba(255,255,255,0.09);
      font-size: 13px;
      margin-bottom: 18px;
    }
    .eyebrow i {
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: var(--brand);
      box-shadow: 0 0 0 4px rgba(67, 231, 210, 0.14);
    }
    h1 {
      margin: 0;
      font-size: clamp(34px, 5vw, 62px);
      line-height: 1.06;
      letter-spacing: -0.04em;
    }
    .hero-copy p {
      margin: 18px 0 0;
      color: rgba(233, 241, 248, 0.82);
      font-size: 17px;
      max-width: 660px;
    }
    .cta-row {
      display: flex;
      flex-wrap: wrap;
      gap: 14px;
      margin-top: 28px;
    }
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 10px;
      min-height: 48px;
      padding: 0 18px;
      border-radius: 14px;
      border: 1px solid transparent;
      font-weight: 700;
      letter-spacing: 0.2px;
      cursor: pointer;
      transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition), background var(--transition), color var(--transition);
      user-select: none;
    }
    .btn-primary {
      color: #061218;
      background: linear-gradient(135deg, #66f0dd 0%, #36cddf 100%);
      box-shadow: 0 14px 32px rgba(54, 205, 223, 0.24);
    }
    .btn-secondary {
      color: #ecf5fb;
      background: rgba(255,255,255,0.03);
      border-color: rgba(148, 173, 199, 0.2);
    }
    .btn:hover,
    .btn:focus-visible {
      transform: translateY(-2px);
      outline: none;
    }
    .btn-primary:hover,
    .btn-primary:focus-visible {
      box-shadow: 0 18px 36px rgba(54, 205, 223, 0.3);
    }
    .btn-secondary:hover,
    .btn-secondary:focus-visible {
      border-color: rgba(67, 231, 210, 0.42);
      background: rgba(67, 231, 210, 0.08);
    }
    .hero-side {
      align-self: stretch;
      display: grid;
      gap: 16px;
    }
    .hero-stat-card {
      background: linear-gradient(180deg, rgba(14, 21, 29, 0.86), rgba(12, 17, 25, 0.92));
      border: 1px solid rgba(148, 173, 199, 0.14);
      border-radius: 22px;
      padding: 20px;
      box-shadow: inset 0 0 0 1px rgba(255,255,255,0.02);
    }
    .hero-stat-card h2,
    .section-title h2,
    .section-title h3 {
      margin: 0;
      line-height: 1.15;
      letter-spacing: -0.02em;
    }
    .hero-stat-card h2 { font-size: 20px; }
    .hero-stat-card p { margin: 10px 0 0; color: var(--muted); font-size: 14px; }
    .stat-grid {
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 12px;
      margin-top: 16px;
    }
    .stat {
      padding: 14px;
      border-radius: 16px;
      background: rgba(255,255,255,0.03);
      border: 1px solid rgba(148, 173, 199, 0.12);
    }
    .stat strong {
      display: block;
      font-size: 22px;
      line-height: 1.1;
      color: #fff;
      margin-bottom: 4px;
    }
    .stat span { color: var(--muted); font-size: 13px; }
    .hero-media {
      background: linear-gradient(180deg, rgba(12, 18, 26, 0.72), rgba(12, 18, 26, 0.92));
      border: 1px solid rgba(148, 173, 199, 0.14);
      border-radius: 22px;
      overflow: hidden;
    }
    .hero-media img {
      width: 100%;
      height: 220px;
      object-fit: cover;
      filter: saturate(0.96) contrast(1.02);
    }
    .hero-media-content {
      padding: 18px;
    }
    .hero-media-content h3 {
      margin: 0;
      font-size: 18px;
    }
    .hero-media-content p {
      margin: 10px 0 0;
      color: var(--muted);
      font-size: 14px;
    }
    .tag-row {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-top: 18px;
    }
    .tag-row .chip,
    .tag-row .badge { background: rgba(255,255,255,0.04); }
    main { padding: 22px 0 56px; }
    .section {
      margin-top: 28px;
    }
    .section-panel {
      background: linear-gradient(180deg, rgba(16, 24, 34, 0.74), rgba(10, 15, 21, 0.92));
      border: 1px solid rgba(148, 173, 199, 0.14);
      border-radius: 26px;
      overflow: hidden;
      box-shadow: var(--shadow);
    }
    .section-head {
      display: flex;
      align-items: end;
      justify-content: space-between;
      gap: 16px;
      padding: 26px 26px 0;
    }
    .section-title p {
      margin: 10px 0 0;
      color: var(--muted);
      max-width: 760px;
      font-size: 15px;
    }
    .section-link {
      color: var(--brand);
      font-size: 14px;
      white-space: nowrap;
      border: 1px solid rgba(67, 231, 210, 0.22);
      padding: 10px 14px;
      border-radius: 999px;
      background: rgba(67, 231, 210, 0.04);
    }
    .section-link:hover { transform: translateY(-1px); border-color: rgba(67, 231, 210, 0.42); }
    .featured-grid {
      display: grid;
      grid-template-columns: 1.2fr 0.8fr;
      gap: 18px;
      padding: 22px 26px 26px;
    }
    .feature-card {
      position: relative;
      overflow: hidden;
      border-radius: 22px;
      border: 1px solid rgba(148, 173, 199, 0.14);
      background: #121a23;
      min-height: 360px;
    }
    .feature-card.large {
      background: linear-gradient(180deg, rgba(14, 20, 28, 0.3), rgba(10, 15, 21, 0.98)), url('/assets/images/coverpic/cover-1.webp') center/cover no-repeat;
    }
    .feature-card.large .feature-content {
      position: absolute;
      inset: auto 0 0 0;
      padding: 22px;
      background: linear-gradient(180deg, transparent 0%, rgba(9, 13, 18, 0.92) 54%, rgba(9, 13, 18, 0.98) 100%);
    }
    .feature-card.large h3,
    .small-item h4,
    .content-card h4,
    .mini-article h4 {
      margin: 0;
      line-height: 1.26;
      letter-spacing: -0.02em;
    }
    .feature-card.large h3 { font-size: 26px; }
    .feature-card.large p { margin: 12px 0 0; color: rgba(232, 240, 248, 0.8); max-width: 520px; }
    .meta-line {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-top: 14px;
      color: var(--muted);
      font-size: 13px;
    }
    .small-stack {
      display: grid;
      gap: 16px;
    }
    .small-item {
      display: grid;
      grid-template-columns: 120px 1fr;
      gap: 14px;
      padding: 14px;
      border-radius: 20px;
      border: 1px solid rgba(148, 173, 199, 0.14);
      background: rgba(255,255,255,0.03);
      min-height: 164px;
    }
    .small-item img {
      width: 120px;
      height: 136px;
      border-radius: 16px;
      object-fit: cover;
    }
    .small-item p { margin: 10px 0 0; color: var(--muted); font-size: 14px; }
    .small-item:hover,
    .content-card:hover,
    .mini-article:hover,
    .feature-card:hover,
    .faq-item:hover {
      transform: translateY(-3px);
      border-color: rgba(67, 231, 210, 0.28);
      box-shadow: 0 18px 30px rgba(0,0,0,0.22);
    }
    .panel-grid {
      display: grid;
      grid-template-columns: repeat(4, minmax(0, 1fr));
      gap: 16px;
      padding: 22px 26px 26px;
    }
    .metric-card {
      padding: 18px;
      border-radius: 20px;
      background: rgba(255,255,255,0.03);
      border: 1px solid rgba(148, 173, 199, 0.12);
    }
    .metric-card .kicker {
      color: var(--brand);
      font-size: 13px;
      margin-bottom: 10px;
    }
    .metric-card strong {
      display: block;
      font-size: 28px;
      line-height: 1;
      color: #fff;
    }
    .metric-card span { display: block; margin-top: 10px; color: var(--muted); font-size: 13px; }
    .tag-cloud {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      padding: 22px 26px 26px;
    }
    .tag-cloud a {
      padding: 12px 16px;
      border-radius: 999px;
      border: 1px solid rgba(148, 173, 199, 0.14);
      background: rgba(255,255,255,0.03);
      color: #ecf4fb;
      font-size: 14px;
    }
    .tag-cloud a:hover {
      color: #fff;
      background: rgba(67, 231, 210, 0.08);
      border-color: rgba(67, 231, 210, 0.32);
      transform: translateY(-2px);
    }
    .content-grid {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 18px;
      padding: 22px 26px 26px;
    }
    .content-card {
      overflow: hidden;
      border-radius: 22px;
      border: 1px solid rgba(148, 173, 199, 0.14);
      background: rgba(255,255,255,0.03);
    }
    .content-card img {
      width: 100%;
      height: 190px;
      object-fit: cover;
    }
    .content-card .card-body {
      padding: 18px;
    }
    .content-card p {
      margin: 10px 0 0;
      color: var(--muted);
      font-size: 14px;
    }
    .card-footer {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 10px;
      margin-top: 16px;
      color: var(--soft);
      font-size: 13px;
    }
    .card-footer a {
      color: var(--brand);
      padding: 8px 12px;
      border-radius: 999px;
      border: 1px solid rgba(67, 231, 210, 0.18);
      background: rgba(67, 231, 210, 0.04);
    }
    .card-footer a:hover { border-color: rgba(67, 231, 210, 0.36); }
    .evidence-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 18px;
      padding: 22px 26px 26px;
      align-items: start;
    }
    .evidence-box {
      padding: 20px;
      border-radius: 20px;
      border: 1px solid rgba(148, 173, 199, 0.14);
      background: rgba(255,255,255,0.03);
    }
    .evidence-box h3 { margin: 0; font-size: 20px; }
    .evidence-box p { margin: 10px 0 0; color: var(--muted); font-size: 14px; }
    .list-lines {
      list-style: none;
      padding: 0;
      margin: 18px 0 0;
      display: grid;
      gap: 12px;
    }
    .list-lines li {
      display: flex;
      align-items: flex-start;
      gap: 10px;
      color: #dbe7f2;
      font-size: 14px;
    }
    .list-lines li::before {
      content: "";
      width: 9px;
      height: 9px;
      margin-top: 8px;
      border-radius: 50%;
      background: linear-gradient(135deg, var(--brand), var(--brand-2));
      box-shadow: 0 0 0 4px rgba(67, 231, 210, 0.1);
      flex: 0 0 auto;
    }
    .mini-article-wrap {
      display: grid;
      gap: 14px;
    }
    .mini-article {
      display: grid;
      grid-template-columns: 120px 1fr;
      gap: 14px;
      padding: 14px;
      border-radius: 18px;
      border: 1px solid rgba(148, 173, 199, 0.14);
      background: rgba(255,255,255,0.03);
    }
    .mini-article img {
      width: 120px;
      height: 102px;
      border-radius: 16px;
      object-fit: cover;
    }
    .mini-article .meta {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-top: 10px;
      color: var(--muted);
      font-size: 12px;
    }
    .faq-list {
      display: grid;
      gap: 12px;
      padding: 22px 26px 26px;
    }
    .faq-item {
      border-radius: 18px;
      border: 1px solid rgba(148, 173, 199, 0.14);
      background: rgba(255,255,255,0.03);
      overflow: hidden;
    }
    .faq-item summary {
      list-style: none;
      cursor: pointer;
      padding: 18px 20px;
      font-weight: 700;
      color: #f4fbff;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
    }
    .faq-item summary::-webkit-details-marker { display: none; }
    .faq-item summary::after {
      content: "+";
      color: var(--brand);
      font-size: 22px;
      line-height: 1;
    }
    .faq-item[open] summary::after { content: "–"; }
    .faq-item .answer {
      padding: 0 20px 18px;
      color: var(--muted);
      font-size: 14px;
    }
    .cta-panel {
      margin-top: 28px;
      background:
        linear-gradient(135deg, rgba(67, 231, 210, 0.12), rgba(141, 107, 255, 0.12)),
        linear-gradient(180deg, rgba(15, 22, 31, 0.95), rgba(10, 15, 21, 0.96));
      border: 1px solid rgba(148, 173, 199, 0.16);
      border-radius: 28px;
      padding: 28px;
      box-shadow: var(--shadow);
    }
    .cta-panel h2 { margin: 0; font-size: 28px; }
    .cta-panel p { margin: 12px 0 0; color: var(--muted); max-width: 720px; }
    .cta-panel .cta-row { margin-top: 22px; }
    .site-footer {
      margin-top: 28px;
      padding: 30px 0 40px;
      border-top: 1px solid rgba(148, 173, 199, 0.12);
      background: rgba(6, 10, 14, 0.42);
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1.2fr 0.8fr 0.8fr;
      gap: 24px;
      align-items: start;
    }
    .footer-brand h3 { margin: 0; font-size: 20px; }
    .footer-brand p { margin: 12px 0 0; color: var(--muted); font-size: 14px; max-width: 560px; }
    .footer-links h4,
    .footer-note h4 { margin: 0 0 12px; font-size: 15px; }
    .footer-links ul,
    .footer-note ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }
    .footer-links a,
    .footer-note li { color: var(--muted); font-size: 14px; }
    .footer-links a:hover { color: #fff; }
    .copyright {
      margin-top: 24px;
      padding-top: 18px;
      border-top: 1px solid rgba(148, 173, 199, 0.12);
      color: var(--soft);
      font-size: 13px;
      display: flex;
      justify-content: space-between;
      gap: 16px;
      flex-wrap: wrap;
    }
    .copyright a { color: var(--brand); }
    .back-top {
      position: fixed;
      right: 18px;
      bottom: 18px;
      width: 46px;
      height: 46px;
      border-radius: 16px;
      background: rgba(14, 20, 28, 0.92);
      border: 1px solid rgba(67, 231, 210, 0.24);
      color: #fff;
      display: grid;
      place-items: center;
      box-shadow: var(--shadow);
      z-index: 40;
    }
    .back-top:hover { transform: translateY(-2px); }
    .search-box {
      position: relative;
      flex: 1;
      max-width: 280px;
    }
    .search-box input {
      width: 100%;
      height: 42px;
      border: 1px solid rgba(148, 173, 199, 0.16);
      background: rgba(255,255,255,0.04);
      color: #fff;
      border-radius: 14px;
      padding: 0 14px;
      outline: none;
    }
    .search-box input::placeholder { color: #8096ab; }
    .search-box input:focus {
      border-color: rgba(67, 231, 210, 0.42);
      box-shadow: 0 0 0 4px rgba(67, 231, 210, 0.08);
    }
    @media (max-width: 1180px) {
      .nav-wrap { flex-wrap: wrap; padding: 14px 0; }
      .logo, .nav-actions { min-width: auto; }
      .nav { order: 3; width: 100%; justify-content: flex-start; }
      .hero-grid,
      .featured-grid,
      .evidence-grid,
      .footer-grid { grid-template-columns: 1fr; }
      .panel-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
      .content-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    }
    @media (max-width: 768px) {
      .container { width: min(100% - 20px, var(--container)); }
      .hero-panel { min-height: auto; }
      .hero-grid { padding: 24px; gap: 20px; min-height: auto; }
      .hero-copy p { font-size: 15px; }
      h1 { font-size: clamp(28px, 10vw, 42px); }
      .section-head { padding: 20px 18px 0; flex-direction: column; align-items: flex-start; }
      .featured-grid,
      .panel-grid,
      .content-grid,
      .evidence-grid,
      .faq-list { padding: 18px; }
      .panel-grid,
      .content-grid { grid-template-columns: 1fr; }
      .small-item,
      .mini-article { grid-template-columns: 1fr; }
      .small-item img,
      .mini-article img { width: 100%; height: 200px; }
      .search-box { max-width: none; width: 100%; }
      .nav-actions { width: 100%; justify-content: flex-start; flex-wrap: wrap; }
      .hero-side { gap: 14px; }
      .cta-panel { padding: 22px; }
      .cta-panel h2 { font-size: 24px; }
      .copyright { flex-direction: column; }
    }
    @media (max-width: 520px) {
      .nav a { padding: 9px 12px; font-size: 13px; }
      .status-pill, .badge, .chip { padding: 7px 10px; font-size: 12px; }
      .hero-copy p, .section-title p { font-size: 14px; }
      .feature-card.large h3 { font-size: 22px; }
      .metric-card strong { font-size: 24px; }
      .btn { width: 100%; }
      .cta-row { flex-direction: column; }
    }

/* roulang page: category1 */
:root{
  --bg:#070b10;
  --bg-2:#0b1118;
  --panel:#111925;
  --panel-2:#0e1620;
  --line:rgba(141,163,186,.16);
  --line-strong:rgba(98,210,255,.28);
  --text:#e8f0f8;
  --muted:#9db0c3;
  --soft:#7d8da0;
  --brand:#46ebe4;
  --brand-2:#7b5cff;
  --brand-3:#1fd2a6;
  --warn:#ffb74a;
  --danger:#ff6d6d;
  --shadow:0 20px 50px rgba(0,0,0,.38);
  --shadow-soft:0 14px 34px rgba(0,0,0,.24);
  --radius:18px;
  --radius-sm:14px;
  --radius-lg:24px;
  --container:1240px;
  --gap:24px;
  --transition:all .24s ease;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  color:var(--text);
  background:
    radial-gradient(circle at top left, rgba(70,235,228,.12), transparent 28%),
    radial-gradient(circle at top right, rgba(123,92,255,.10), transparent 26%),
    linear-gradient(180deg, #091018 0%, #070b10 40%, #06090d 100%);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  line-height:1.7;
  overflow-x:hidden;
}

body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  background:
    linear-gradient(rgba(255,255,255,.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.025) 1px, transparent 1px);
  background-size:42px 42px;
  mask-image:linear-gradient(180deg, rgba(0,0,0,.62), transparent 84%);
  opacity:.24;
  z-index:-1;
}

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

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

button,
input,
textarea{
  font:inherit;
}

button{
  cursor:pointer;
}

::selection{
  background:rgba(70,235,228,.26);
  color:#fff;
}

.container{
  width:min(var(--container), calc(100% - 48px));
  margin:0 auto;
}

.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(7,11,16,.62);
  backdrop-filter:blur(16px);
  border-bottom:1px solid rgba(255,255,255,.06);
  transition:var(--transition);
}
.site-header.scrolled{
  background:rgba(8,12,18,.88);
  box-shadow:0 8px 30px rgba(0,0,0,.2);
}

.nav-wrap{
  min-height:78px;
  display:flex;
  align-items:center;
  gap:20px;
}

.logo{
  display:flex;
  align-items:center;
  gap:12px;
  min-width:0;
}
.logo-mark{
  width:48px;
  height:48px;
  border-radius:16px;
  display:grid;
  place-items:center;
  font-weight:800;
  letter-spacing:.08em;
  color:#061018;
  background:linear-gradient(135deg, var(--brand) 0%, #8cf7f2 40%, var(--brand-2) 100%);
  box-shadow:0 12px 26px rgba(70,235,228,.22);
  flex:none;
}
.logo-text{
  display:flex;
  flex-direction:column;
  gap:2px;
  min-width:0;
}
.logo-text strong{
  font-size:1rem;
  line-height:1.15;
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}
.logo-text span{
  font-size:.84rem;
  color:var(--muted);
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}

.nav{
  display:flex;
  align-items:center;
  gap:6px;
  flex:1;
  overflow:auto;
  scrollbar-width:none;
}
.nav::-webkit-scrollbar{display:none}
.nav a{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  height:42px;
  padding:0 14px;
  border-radius:12px;
  color:#c7d4e1;
  border:1px solid transparent;
  transition:var(--transition);
  white-space:nowrap;
}
.nav a:hover,
.nav a:focus-visible{
  color:#fff;
  background:rgba(255,255,255,.04);
  border-color:rgba(255,255,255,.08);
  outline:none;
  transform:translateY(-1px);
}
.nav a.active{
  color:#fff;
  background:linear-gradient(135deg, rgba(70,235,228,.16), rgba(123,92,255,.14));
  border-color:rgba(98,210,255,.24);
  box-shadow:inset 0 0 0 1px rgba(70,235,228,.08);
}

.nav-actions{
  display:flex;
  align-items:center;
  gap:12px;
}
.search-box{
  position:relative;
}
.search-box input{
  width:220px;
  height:42px;
  border-radius:13px;
  border:1px solid rgba(255,255,255,.08);
  background:rgba(16,23,32,.86);
  color:var(--text);
  padding:0 14px;
  outline:none;
  transition:var(--transition);
}
.search-box input::placeholder{color:#7f90a3}
.search-box input:focus{
  border-color:rgba(70,235,228,.42);
  box-shadow:0 0 0 4px rgba(70,235,228,.08);
}
.status-pill{
  display:inline-flex;
  align-items:center;
  gap:6px;
  height:42px;
  padding:0 14px;
  border-radius:13px;
  border:1px solid rgba(255,255,255,.08);
  background:rgba(16,23,32,.84);
  color:#c8d5e2;
  white-space:nowrap;
}
.status-pill strong{color:#fff}

main{
  padding-bottom:32px;
}

.page-hero{
  padding:24px 0 8px;
}

.hero-shell{
  position:relative;
  overflow:hidden;
  border-radius:28px;
  border:1px solid rgba(255,255,255,.08);
  background:
    linear-gradient(135deg, rgba(4,8,12,.78), rgba(6,10,14,.72)),
    url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  box-shadow:var(--shadow);
}

.hero-shell::before{
  content:"";
  position:absolute;
  inset:0;
  background:
    linear-gradient(120deg, rgba(70,235,228,.08), transparent 30%),
    linear-gradient(300deg, rgba(123,92,255,.09), transparent 38%),
    radial-gradient(circle at 80% 20%, rgba(255,183,74,.12), transparent 18%);
  pointer-events:none;
}

.hero-grid{
  position:relative;
  display:grid;
  grid-template-columns:1.18fr .82fr;
  gap:22px;
  padding:34px;
  align-items:stretch;
}

.breadcrumbs{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  color:rgba(232,240,248,.82);
  font-size:.92rem;
  margin-bottom:14px;
}
.breadcrumbs a{
  color:#cce9f1;
}
.breadcrumbs span{
  color:var(--soft);
}

.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:7px 12px;
  border-radius:999px;
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.08);
  color:#d8ecf7;
  font-size:.88rem;
  letter-spacing:.02em;
  width:fit-content;
  margin-bottom:14px;
}
.eyebrow::before{
  content:"";
  width:8px;
  height:8px;
  border-radius:999px;
  background:var(--brand);
  box-shadow:0 0 0 4px rgba(70,235,228,.14);
}

.hero-title{
  margin:0;
  font-size:clamp(2rem, 4vw, 3.7rem);
  line-height:1.08;
  letter-spacing:-.02em;
  text-wrap:balance;
}
.hero-copy p{
  margin:16px 0 0;
  max-width:60ch;
  color:#c3d2df;
  font-size:1.02rem;
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  margin-top:22px;
}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:46px;
  padding:0 18px;
  border-radius:14px;
  border:1px solid transparent;
  transition:var(--transition);
  font-weight:700;
  letter-spacing:.01em;
}
.btn:hover,
.btn:focus-visible{
  outline:none;
  transform:translateY(-2px);
}
.btn-primary{
  color:#061018;
  background:linear-gradient(135deg, var(--brand) 0%, #95fbf5 45%, #79f 100%);
  box-shadow:0 14px 28px rgba(70,235,228,.16);
}
.btn-primary:hover,
.btn-primary:focus-visible{
  box-shadow:0 16px 30px rgba(70,235,228,.24);
}
.btn-secondary{
  color:#eaf6fb;
  background:rgba(255,255,255,.04);
  border-color:rgba(255,255,255,.12);
}
.btn-secondary:hover,
.btn-secondary:focus-visible{
  border-color:rgba(70,235,228,.3);
  box-shadow:0 10px 24px rgba(0,0,0,.18), 0 0 0 4px rgba(70,235,228,.06);
}
.btn-sm{
  min-height:40px;
  padding:0 14px;
  border-radius:12px;
  font-weight:600;
  font-size:.93rem;
}

.hero-badges{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:20px;
}
.badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:8px 12px;
  border-radius:999px;
  background:rgba(255,255,255,.05);
  border:1px solid rgba(255,255,255,.08);
  color:#d8e7f3;
  font-size:.87rem;
}
.badge strong{
  color:#fff;
}
.badge.warn{
  background:rgba(255,183,74,.09);
  border-color:rgba(255,183,74,.18);
  color:#ffd89d;
}

.hero-visual{
  display:flex;
  flex-direction:column;
  gap:14px;
}
.visual-card{
  position:relative;
  flex:1;
  border-radius:24px;
  overflow:hidden;
  border:1px solid rgba(255,255,255,.09);
  background:rgba(14,22,32,.76);
  box-shadow:var(--shadow-soft);
  min-height:330px;
}
.visual-card img{
  width:100%;
  height:100%;
  object-fit:cover;
  filter:saturate(1.04) contrast(1.04);
}
.visual-card::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg, rgba(7,10,15,.12), rgba(7,10,15,.72));
}
.visual-overlay{
  position:absolute;
  left:0;
  right:0;
  bottom:0;
  z-index:1;
  padding:20px;
  display:grid;
  gap:10px;
}
.visual-overlay h3{
  margin:0;
  font-size:1.12rem;
}
.visual-overlay p{
  margin:0;
  color:#d2deea;
  font-size:.94rem;
}
.stat-row{
  display:grid;
  grid-template-columns:repeat(3, minmax(0,1fr));
  gap:12px;
}
.stat{
  padding:14px 14px 12px;
  border-radius:16px;
  background:rgba(12,18,25,.82);
  border:1px solid rgba(255,255,255,.08);
}
.stat strong{
  display:block;
  font-size:1.2rem;
  line-height:1.15;
}
.stat span{
  display:block;
  margin-top:4px;
  color:var(--muted);
  font-size:.83rem;
}

.section{
  padding:24px 0;
}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:16px;
  margin-bottom:18px;
}
.section-head h2{
  margin:0;
  font-size:1.42rem;
  line-height:1.2;
}
.section-head p{
  margin:0;
  color:var(--muted);
  max-width:60ch;
}

.filter-bar{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  padding:16px;
  border-radius:var(--radius);
  background:linear-gradient(180deg, rgba(16,24,34,.92), rgba(11,17,24,.92));
  border:1px solid var(--line);
  box-shadow:var(--shadow-soft);
}
.chip{
  display:inline-flex;
  align-items:center;
  gap:8px;
  min-height:40px;
  padding:0 14px;
  border-radius:999px;
  border:1px solid rgba(255,255,255,.08);
  background:rgba(255,255,255,.03);
  color:#d3e0ea;
  transition:var(--transition);
  white-space:nowrap;
}
.chip:hover,
.chip:focus-visible{
  outline:none;
  transform:translateY(-2px);
  border-color:rgba(70,235,228,.24);
  box-shadow:0 10px 22px rgba(0,0,0,.18);
}
.chip.active{
  color:#051017;
  background:linear-gradient(135deg, rgba(70,235,228,.96), rgba(123,92,255,.9));
  border-color:transparent;
  font-weight:700;
}

.main-layout{
  display:grid;
  grid-template-columns:minmax(0,1.35fr) minmax(290px,.65fr);
  gap:24px;
  align-items:start;
}

.feature-stack{
  display:grid;
  gap:16px;
}

.feature-card,
.mini-card,
.metric-card,
.aside-card,
.list-card,
.timeline-card,
.cta-box,
.faq-wrap{
  background:linear-gradient(180deg, rgba(16,24,34,.9), rgba(11,17,24,.95));
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow-soft);
}

.feature-card{
  overflow:hidden;
  display:grid;
  grid-template-columns:1.05fr .95fr;
  min-height:360px;
}
.feature-media{
  position:relative;
  min-height:320px;
}
.feature-media img{
  width:100%;
  height:100%;
  object-fit:cover;
}
.feature-media::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg, rgba(7,11,16,.06), rgba(7,11,16,.62));
}
.feature-copy{
  padding:24px;
  display:flex;
  flex-direction:column;
  justify-content:center;
  gap:14px;
}
.feature-copy h3{
  margin:0;
  font-size:1.42rem;
  line-height:1.18;
}
.feature-copy p{
  margin:0;
  color:#c6d4e0;
}
.meta-line{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  color:#aec0d2;
  font-size:.88rem;
}
.meta-line span{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:6px 10px;
  border-radius:999px;
  border:1px solid rgba(255,255,255,.08);
  background:rgba(255,255,255,.03);
}
.meta-line em{
  font-style:normal;
  color:#fff;
}

.mini-grid{
  display:grid;
  grid-template-columns:repeat(3, minmax(0,1fr));
  gap:16px;
}
.mini-card{
  overflow:hidden;
  display:flex;
  flex-direction:column;
}
.mini-card .thumb{
  position:relative;
  height:160px;
  overflow:hidden;
}
.mini-card .thumb img{
  width:100%;
  height:100%;
  object-fit:cover;
}
.mini-card .thumb::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg, rgba(7,11,16,.08), rgba(7,11,16,.64));
}
.mini-card .body{
  padding:16px;
  display:grid;
  gap:10px;
}
.mini-card h4{
  margin:0;
  font-size:1rem;
}
.mini-card p{
  margin:0;
  color:var(--muted);
  font-size:.92rem;
}

.metric-strip{
  display:grid;
  grid-template-columns:repeat(4, minmax(0,1fr));
  gap:14px;
}
.metric-card{
  padding:18px;
  border-radius:18px;
}
.metric-card strong{
  display:block;
  font-size:1.5rem;
  line-height:1;
}
.metric-card span{
  display:block;
  margin-top:8px;
  color:var(--muted);
  font-size:.88rem;
}

.sidebar{
  display:grid;
  gap:16px;
  position:sticky;
  top:100px;
}
.aside-card{
  padding:18px;
}
.aside-card h3{
  margin:0 0 12px;
  font-size:1.02rem;
}
.clean-list{
  list-style:none;
  padding:0;
  margin:0;
  display:grid;
  gap:10px;
}
.clean-list li{
  display:flex;
  align-items:flex-start;
  gap:10px;
  color:#d7e3ee;
}
.clean-list li::before{
  content:"";
  width:8px;
  height:8px;
  border-radius:999px;
  background:linear-gradient(135deg, var(--brand), var(--brand-2));
  margin-top:9px;
  flex:none;
}
.tag-cloud{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
}
.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  height:34px;
  padding:0 12px;
  border-radius:999px;
  border:1px solid rgba(255,255,255,.08);
  background:rgba(255,255,255,.03);
  color:#dce7f0;
  font-size:.86rem;
  transition:var(--transition);
}
.tag:hover,
.tag:focus-visible{
  outline:none;
  transform:translateY(-2px);
  border-color:rgba(123,92,255,.26);
}
.tag.warn{
  color:#ffe3b7;
  background:rgba(255,183,74,.08);
  border-color:rgba(255,183,74,.18);
}
.note-box{
  padding:16px;
  border-radius:16px;
  border:1px solid rgba(255,183,74,.16);
  background:linear-gradient(180deg, rgba(255,183,74,.08), rgba(255,255,255,.03));
  color:#ffdba2;
}
.note-box strong{
  display:block;
  margin-bottom:8px;
  color:#fff3dd;
}
.note-box p{
  margin:0;
  color:#ead3a7;
  font-size:.94rem;
}

.content-list{
  display:grid;
  gap:16px;
}
.list-card{
  overflow:hidden;
  display:grid;
  grid-template-columns:240px minmax(0,1fr);
  gap:0;
}
.list-card .thumb{
  position:relative;
  min-height:220px;
}
.list-card .thumb img{
  width:100%;
  height:100%;
  object-fit:cover;
}
.list-card .thumb::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg, rgba(7,11,16,.08), rgba(7,11,16,.58));
}
.list-card .content{
  padding:20px;
  display:grid;
  gap:12px;
}
.list-card h3{
  margin:0;
  font-size:1.16rem;
  line-height:1.3;
}
.list-card p{
  margin:0;
  color:#c7d4e0;
}
.card-meta{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  color:#9fb0c1;
  font-size:.86rem;
}
.card-meta span{
  display:inline-flex;
  align-items:center;
  gap:6px;
}
.card-actions{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:2px;
}
.list-card.lead{
  grid-template-columns:300px minmax(0,1fr);
}
.list-card.compact{
  grid-template-columns:220px minmax(0,1fr);
}

.pagination{
  display:flex;
  justify-content:center;
  align-items:center;
  gap:10px;
  padding-top:8px;
}
.page-btn{
  min-width:42px;
  height:42px;
  padding:0 14px;
  border-radius:12px;
  border:1px solid rgba(255,255,255,.08);
  background:rgba(255,255,255,.03);
  color:#dce7f0;
  transition:var(--transition);
}
.page-btn:hover,
.page-btn:focus-visible{
  outline:none;
  transform:translateY(-2px);
  border-color:rgba(70,235,228,.24);
}
.page-btn.active{
  color:#071018;
  background:linear-gradient(135deg, var(--brand) 0%, #8ff6f1 45%, #7b5cff 100%);
  border-color:transparent;
  font-weight:700;
}

.history-grid{
  display:grid;
  grid-template-columns:repeat(3, minmax(0,1fr));
  gap:16px;
}
.timeline-card{
  padding:20px;
}
.timeline-card .num{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:42px;
  height:42px;
  border-radius:14px;
  background:rgba(70,235,228,.12);
  border:1px solid rgba(70,235,228,.18);
  color:#b8fff9;
  font-weight:800;
}
.timeline-card h3{
  margin:14px 0 8px;
  font-size:1.06rem;
}
.timeline-card p{
  margin:0;
  color:var(--muted);
}

.faq-wrap{
  overflow:hidden;
}
.faq-list{
  display:grid;
}
.faq-item{
  border-top:1px solid rgba(255,255,255,.07);
}
.faq-item:first-child{border-top:none}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:18px 20px;
  font-weight:700;
  color:#ecf4fa;
  transition:var(--transition);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{
  background:rgba(255,255,255,.02);
}
.faq-item summary::after{
  content:"+";
  width:28px;
  height:28px;
  border-radius:10px;
  display:grid;
  place-items:center;
  background:rgba(255,255,255,.05);
  border:1px solid rgba(255,255,255,.08);
  color:#cfe6f3;
  flex:none;
  transition:var(--transition);
}
.faq-item[open] summary::after{
  content:"—";
  background:rgba(70,235,228,.12);
  color:#d8fffc;
}
.faq-item .answer{
  padding:0 20px 18px;
  color:#c4d3df;
  max-width:82ch;
}
.faq-item .answer p{
  margin:0;
}

.cta-box{
  position:relative;
  overflow:hidden;
  padding:26px;
  background:
    linear-gradient(135deg, rgba(70,235,228,.14), rgba(123,92,255,.13)),
    linear-gradient(180deg, rgba(16,24,34,.92), rgba(11,17,24,.98));
}
.cta-box::before{
  content:"";
  position:absolute;
  inset:-40% -10% auto auto;
  width:320px;
  height:320px;
  border-radius:50%;
  background:radial-gradient(circle, rgba(70,235,228,.18), transparent 68%);
  pointer-events:none;
}
.cta-inner{
  position:relative;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
}
.cta-inner h2{
  margin:0;
  font-size:1.4rem;
}
.cta-inner p{
  margin:8px 0 0;
  color:#d0dee8;
}

.site-footer{
  margin-top:26px;
  border-top:1px solid rgba(255,255,255,.08);
  background:linear-gradient(180deg, rgba(9,13,19,.96), rgba(7,10,15,.98));
}
.site-footer .container{
  padding:28px 0 20px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.15fr .7fr .7fr;
  gap:22px;
}
.footer-brand h3,
.footer-links h4,
.footer-note h4{
  margin:0 0 12px;
}
.footer-brand p,
.footer-note li,
.footer-links a{
  color:var(--muted);
}
.footer-links ul,
.footer-note ul{
  list-style:none;
  padding:0;
  margin:0;
  display:grid;
  gap:10px;
}
.footer-links a:hover,
.footer-links a:focus-visible{
  color:#fff;
}
.copyright{
  margin-top:22px;
  padding-top:16px;
  border-top:1px solid rgba(255,255,255,.08);
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:12px;
  color:#93a6b9;
  font-size:.92rem;
}
.copyright a{
  color:#dff8f6;
}

@media (max-width: 1180px){
  .hero-grid,
  .main-layout,
  .feature-card,
  .list-card,
  .history-grid,
  .footer-grid{
    grid-template-columns:1fr;
  }
  .sidebar{
    position:static;
  }
  .mini-grid,
  .metric-strip{
    grid-template-columns:repeat(2, minmax(0,1fr));
  }
}

@media (max-width: 900px){
  .nav-wrap{
    flex-wrap:wrap;
    padding:12px 0;
  }
  .nav{
    order:3;
    width:100%;
  }
  .nav-actions{
    margin-left:auto;
  }
  .search-box input{
    width:180px;
  }
  .hero-grid{
    padding:24px;
  }
  .stat-row{
    grid-template-columns:1fr;
  }
  .cta-inner{
    flex-direction:column;
    align-items:flex-start;
  }
}

@media (max-width: 768px){
  .container{
    width:min(var(--container), calc(100% - 28px));
  }
  .page-hero{
    padding-top:18px;
  }
  .hero-shell{
    border-radius:22px;
  }
  .hero-grid{
    gap:18px;
    padding:20px;
  }
  .hero-title{
    font-size:clamp(1.8rem, 8vw, 2.5rem);
  }
  .mini-grid,
  .metric-strip,
  .history-grid{
    grid-template-columns:1fr;
  }
  .list-card,
  .list-card.lead,
  .list-card.compact{
    grid-template-columns:1fr;
  }
  .list-card .thumb,
  .feature-media{
    min-height:220px;
  }
  .section-head{
    flex-direction:column;
    align-items:flex-start;
  }
  .nav-actions{
    width:100%;
    flex-wrap:wrap;
  }
  .search-box,
  .search-box input{
    width:100%;
  }
  .status-pill{
    width:100%;
    justify-content:center;
  }
  .cta-box{
    padding:22px;
  }
}

@media (max-width: 520px){
  .container{
    width:min(var(--container), calc(100% - 20px));
  }
  .logo-mark{
    width:42px;
    height:42px;
    border-radius:14px;
  }
  .logo-text strong{
    font-size:.96rem;
  }
  .logo-text span{
    font-size:.8rem;
  }
  .btn{
    width:100%;
  }
  .hero-actions,
  .card-actions{
    flex-direction:column;
    align-items:stretch;
  }
  .filter-bar{
    padding:12px;
  }
  .chip,
  .tag{
    width:100%;
    justify-content:center;
  }
  .copyright{
    flex-direction:column;
    align-items:flex-start;
  }
}