/* roulang page: index */
:root {
    --bg: #071020;
    --bg2: #0B1730;
    --bg3: #0E1D3A;
    --deep: #050C1B;
    --text: #F1F5FB;
    --muted: #A5B4CE;
    --weaker: #6E7FA0;
    --cyan: #37D7F0;
    --cyan-deep: #22B4D8;
    --blue: #7C9DF2;
    --gold: #F5C45A;
    --green: #45E0A0;
    --line: rgba(148, 163, 184, 0.18);
    --white-line: rgba(255, 255, 255, 0.1);
    --radius: 16px;
    --container: 1200px;
  }

  * {
    box-sizing: border-box;
  }

  html {
    scroll-behavior: smooth;
  }

  body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
    font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans CJK SC', 'Inter', system-ui, sans-serif;
    line-height: 1.75;
    -webkit-font-smoothing: antialiased;
    padding-bottom: 72px;
  }

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

  button {
    font: inherit;
    cursor: pointer;
  }

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

  .container-site {
    width: min(100% - 2rem, var(--container));
    margin-inline: auto;
  }

  .section {
    padding: 64px 0;
    scroll-margin-top: 80px;
  }

  .section-head {
    max-width: 840px;
  }

  .eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 13px;
    letter-spacing: 0.08em;
    color: var(--cyan);
    font-weight: 600;
    margin-bottom: 14px;
  }

  .eyebrow::before {
    content: "";
    width: 30px;
    height: 1px;
    background: linear-gradient(90deg, rgba(55, 215, 240, 0.15), var(--cyan));
  }

  .glass-card {
    position: relative;
    border: 1px solid var(--white-line);
    background:
      linear-gradient(180deg, rgba(255,255,255,0.07) 0%, rgba(255,255,255,0.015) 30%, rgba(255,255,255,0.04) 100%),
      rgba(11, 23, 48, 0.72);
    box-shadow: 0 20px 50px -24px rgba(0, 0, 0, 0.7);
    border-radius: var(--radius);
    overflow: hidden;
    transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
  }

  .glass-card::after {
    content: "";
    position: absolute;
    inset: 0 0 auto 0;
    height: 1px;
    background: linear-gradient(90deg, rgba(255,255,255,0.05), rgba(255,255,255,0.2), rgba(255,255,255,0.05));
    opacity: 0.6;
  }

  .glass-card:hover {
    transform: translateY(-4px);
    border-color: rgba(55, 215, 240, 0.4);
    box-shadow: 0 24px 54px -26px rgba(0, 0, 0, 0.85), 0 0 0 1px rgba(55, 215, 240, 0.12);
  }

  .btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-height: 44px;
    padding: 0 22px;
    border-radius: 8px;
    background: linear-gradient(135deg, #52E5FF 0%, #26BDE4 100%);
    color: #052630;
    font-size: 15px;
    font-weight: 600;
    line-height: 1;
    box-shadow: 0 0 20px rgba(0, 228, 255, 0.32), inset 0 1px 0 rgba(255, 255, 255, 0.5);
    transition: box-shadow 0.25s ease, filter 0.25s ease, transform 0.15s ease;
  }

  .btn-primary:hover {
    filter: brightness(1.05);
    box-shadow: 0 0 26px rgba(0, 228, 255, 0.44), inset 0 1px 0 rgba(255, 255, 255, 0.55);
  }

  .btn-primary:active {
    transform: scale(0.98);
    box-shadow: 0 0 12px rgba(0, 228, 255, 0.38), inset 0 1px 0 rgba(255, 255, 255, 0.4);
  }

  .btn-ghost {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-height: 44px;
    padding: 0 22px;
    border: 1px solid rgba(148, 163, 184, 0.32);
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.02);
    color: var(--text);
    font-size: 15px;
    font-weight: 500;
    line-height: 1;
    transition: border-color 0.25s ease, box-shadow 0.25s ease, background 0.25s ease;
  }

  .btn-ghost:hover {
    border-color: rgba(55, 215, 240, 0.56);
    background: rgba(55, 215, 240, 0.05);
    box-shadow: 0 1px 0 rgba(55, 215, 240, 0.2);
  }

  .btn-ghost:active {
    transform: scale(0.98);
  }

  .badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    border-radius: 999px;
    border: 1px solid rgba(124, 157, 242, 0.36);
    background: rgba(124, 157, 242, 0.1);
    color: var(--blue);
    padding: 3px 12px;
    font-size: 12px;
    white-space: nowrap;
  }

  .gold-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    border-radius: 999px;
    border: 1px solid rgba(245, 196, 90, 0.35);
    background: rgba(245, 196, 90, 0.08);
    color: var(--gold);
    padding: 3px 12px;
    font-size: 12px;
    white-space: nowrap;
  }

  #siteHeader {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 50;
    height: 72px;
    border-bottom: 1px solid transparent;
    transition: background 0.25s ease, border-color 0.25s ease, backdrop-filter 0.25s ease;
  }

  #siteHeader.scrolled {
    background: rgba(7, 16, 32, 0.82);
    border-bottom-color: rgba(148, 163, 184, 0.14);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
  }

  .nav-link {
    display: inline-flex;
    align-items: center;
    position: relative;
    padding: 8px 12px;
    color: var(--muted);
    font-size: 15px;
    border-radius: 8px;
    transition: color 0.2s ease;
  }

  .nav-link:hover {
    color: #fff;
  }

  .nav-link.active {
    color: #fff;
    font-weight: 600;
  }

  .nav-link.active::after {
    content: "";
    position: absolute;
    bottom: 1px;
    left: 50%;
    transform: translateX(-50%);
    width: 20px;
    height: 2px;
    border-radius: 2px;
    background: var(--cyan);
    box-shadow: 0 0 10px rgba(55, 215, 240, 0.8);
  }

  .logo-mark {
    position: relative;
    display: block;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    border: 1px solid rgba(55, 215, 240, 0.7);
    box-shadow: 0 0 14px rgba(55, 215, 240, 0.4);
  }

  .logo-mark::before {
    content: "";
    position: absolute;
    top: 50%;
    left: 50%;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--cyan);
    transform: translate(-50%, -50%);
    box-shadow: 0 0 8px var(--cyan);
  }

  .logo-mark::after {
    content: "";
    position: absolute;
    inset: 5px;
    border: 1px dashed rgba(55, 215, 240, 0.45);
    border-radius: 50%;
    animation: radarSpin 14s linear infinite;
  }

  @keyframes radarSpin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
  }

  .search-shell {
    position: fixed;
    top: 76px;
    left: 50%;
    transform: translateX(-50%);
    width: min(100% - 2rem, 680px);
    z-index: 45;
    border: 1px solid var(--white-line);
    border-radius: 16px;
    background: rgba(7, 16, 32, 0.9);
    backdrop-filter: blur(18px);
    padding: 12px;
    box-shadow: 0 28px 70px -20px rgba(0, 0, 0, 0.8);
  }

  .search-shell form {
    display: flex;
    gap: 10px;
  }

  .search-shell input {
    flex: 1;
    min-width: 0;
    height: 44px;
    border-radius: 10px;
    border: 1px solid rgba(148, 163, 184, 0.24);
    background: rgba(255, 255, 255, 0.04);
    color: #fff;
    padding: 0 16px;
    font-size: 14px;
    outline: none;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
  }

  .search-shell input:focus {
    border-color: rgba(55, 215, 240, 0.6);
    box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.12);
  }

  .mobile-drawer {
    position: fixed;
    top: 0;
    left: auto;
    right: 0;
    bottom: 0;
    width: min(86vw, 360px);
    z-index: 70;
    background: #081225;
    border-left: 1px solid rgba(148, 163, 184, 0.16);
    display: flex;
    flex-direction: column;
    padding: 24px;
    transition: transform 0.3s ease;
    transform: translateX(105%);
  }

  .mobile-drawer.open {
    transform: translateX(0);
  }

  .mobile-nav-link {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 16px;
    border: 1px solid rgba(148, 163, 184, 0.13);
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.025);
    color: var(--muted);
    font-size: 16px;
    margin-bottom: 10px;
    transition: border-color 0.2s ease, color 0.2s ease;
  }

  .mobile-nav-link:hover,
  .mobile-nav-link.active {
    color: #fff;
    border-color: rgba(55, 215, 240, 0.38);
  }

  .mobile-nav-link.active {
    background: rgba(55, 215, 240, 0.06);
  }

  .hero-section {
    position: relative;
    min-height: 100vh;
    padding-top: 72px;
    overflow: hidden;
  }

  .hero-bg {
    position: absolute;
    inset: 0;
    background-image: url('/assets/images/backpic/back-1.webp');
    background-size: cover;
    background-position: center;
    transform: scale(1.02);
  }

  .hero-bg::after {
    content: "";
    position: absolute;
    inset: 0;
    background:
      linear-gradient(90deg, rgba(7, 16, 32, 0.82) 0%, rgba(7, 16, 32, 0.6) 42%, rgba(11, 23, 48, 0.22) 100%),
      linear-gradient(0deg, rgba(7, 16, 32, 0.92) 0%, rgba(7, 16, 32, 0.68) 55%, rgba(7, 16, 32, 0.45) 100%);
  }

  .hero-grid {
    position: relative;
    top: 0;
  }

  .hero-grid::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 30%;
    height: 260px;
    border-top: 1px solid rgba(55, 215, 240, 0.08);
    border-left: 1px solid rgba(55, 215, 240, 0.08);
    background-image: linear-gradient(rgba(55,215,240,0.05) 1px, transparent 1px), linear-gradient(90deg, rgba(55,215,240,0.05) 1px, transparent 1px);
    background-size: 36px 36px;
    pointer-events: none;
  }

  .status-dot {
    display: inline-block;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--green);
    box-shadow: 0 0 0 4px rgba(69, 224, 160, 0.12), 0 0 12px rgba(69, 224, 160, 0.7);
    margin-right: 8px;
  }

  .browser-frame {
    border: 1px solid rgba(255, 255, 255, 0.14);
    border-radius: 18px;
    background: rgba(7, 16, 32, 0.78);
    box-shadow: 0 30px 70px -24px rgba(0, 0, 0, 0.85);
    overflow: hidden;
    backdrop-filter: blur(10px);
  }

  .browser-bar {
    display: flex;
    align-items: center;
    height: 42px;
    padding: 0 14px;
    background: rgba(15, 29, 58, 0.82);
    border-bottom: 1px solid var(--white-line);
    gap: 10px;
  }

  .browser-dots {
    display: flex;
    gap: 6px;
  }

  .browser-dots span {
    width: 10px;
    height: 10px;
    display: block;
    border-radius: 50%;
    background: rgba(148, 163, 184, 0.22);
  }

  .browser-dots span:first-child {
    background: rgba(245, 196, 90, 0.55);
  }

  .browser-dots span:nth-child(2) {
    background: rgba(69, 224, 160, 0.55);
  }

  .browser-dots span:nth-child(3) {
    background: rgba(55, 215, 240, 0.5);
  }

  .browser-address {
    flex: 1;
    max-width: 300px;
    height: 28px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(148, 163, 184, 0.12);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    color: var(--muted);
    gap: 6px;
  }

  .hero-glow {
    position: absolute;
    width: 300px;
    height: 300px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(55, 215, 240, 0.2), transparent 65%);
    left: 5%;
    bottom: 8%;
    filter: blur(28px);
    pointer-events: none;
  }

  .route-line {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 0;
  }

  .route-step {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: var(--muted);
    font-size: 13px;
  }

  .route-step + .route-step {
    margin-left: 10px;
  }

  .route-step + .route-step::before {
    content: "";
    width: 34px;
    height: 1px;
    background: linear-gradient(90deg, rgba(148, 163, 184, 0.3), transparent);
    margin-right: 10px;
  }

  .feature-grid {
    display: grid;
    gap: 24px;
  }

  .feature-card-line {
    position: relative;
    padding: 0 0 24px 26px;
  }

  .feature-card-line::before {
    content: "";
    position: absolute;
    left: 0;
    top: 6px;
    bottom: 16px;
    width: 2px;
    background: linear-gradient(180deg, rgba(55, 215, 240, 0.5), rgba(55, 215, 240, 0.05));
  }

  .stat-number {
    color: var(--gold);
    font-size: 58px;
    letter-spacing: -0.05em;
    font-weight: 800;
    line-height: 1;
  }

  .stat-label {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 112px;
    background: rgba(245, 196, 90, 0.08);
    border: 1px solid rgba(245, 196, 90, 0.18);
    border-radius: 999px;
    color: var(--gold);
    font-size: 13px;
    padding: 4px 12px;
  }

  .img-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
  }

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

  .figure-card .figure-mask {
    position: absolute;
    right: 14px;
    bottom: 14px;
    left: 14px;
    border-radius: 12px;
    background: rgba(7, 16, 32, 0.72);
    border: 1px solid rgba(255, 255, 255, 0.13);
    backdrop-filter: blur(10px);
    padding: 14px 16px;
  }

  .milestone-card {
    display: flex;
    align-items: flex-start;
    gap: 18px;
    padding: 26px;
  }

  .milestone-icon {
    flex: 0 0 auto;
    width: 46px;
    height: 46px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(55, 215, 240, 0.09);
    border: 1px solid rgba(55, 215, 240, 0.24);
    color: var(--cyan);
  }

  .data-metric {
    display: flex;
    flex-direction: column;
    gap: 6px;
    border-left: 1px solid rgba(148, 163, 184, 0.16);
    padding-left: 18px;
  }

  .metric-value {
    color: var(--gold);
    font-size: clamp(1.9rem, 3vw, 2.5rem);
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -0.03em;
  }

  .metric-title {
    font-size: 14px;
    color: var(--muted);
  }

  .metric-sub {
    font-size: 13px;
    color: var(--weaker);
  }

  .quote-grid {
    display: grid;
    gap: 20px;
  }

  .quote-card {
    display: flex;
    flex-direction: column;
    gap: 16px;
    padding: 26px;
  }

  .quote-card::before {
    content: "“";
    font-family: Georgia, serif;
    font-size: 44px;
    color: var(--cyan);
    height: 28px;
    opacity: 0.8;
  }

  .cms-item-link {
    display: block;
    position: relative;
    padding: 24px;
    min-height: 100%;
  }

  .cms-featured {
    position: relative;
  }

  .cms-featured-inner {
    display: grid;
  }

  .cms-clamp {
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
    overflow: hidden;
  }

  .cms-card:hover {
    border-color: rgba(55, 215, 240, 0.42);
  }

  .read-link {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    color: var(--cyan);
    font-size: 13px;
    opacity: 0;
    transition: opacity 0.2s ease, gap 0.2s ease;
  }

  .cms-card:hover .read-link {
    opacity: 1;
  }

  .empty-state {
    border: 1px dashed rgba(148, 163, 184, 0.28);
    border-radius: 16px;
    padding: 60px 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 14px;
    color: var(--weaker);
    font-size: 15px;
    text-align: center;
  }

  .faq-item {
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 16px;
    background: rgba(255, 255, 255, 0.025);
    overflow: hidden;
    transition: border-color 0.2s ease;
  }

  .faq-item.open {
    border-color: rgba(55, 215, 240, 0.32);
  }

  .faq-trigger {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    text-align: left;
    padding: 20px 22px;
    background: transparent;
    border: 0;
    color: var(--text);
    font-size: 16px;
    font-weight: 600;
    line-height: 1.5;
  }

  .faq-icon {
    flex: 0 0 auto;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid rgba(55, 215, 240, 0.45);
    border-radius: 8px;
    color: var(--cyan);
    transition: transform 0.2s ease;
  }

  .faq-item.open .faq-icon {
    transform: rotate(45deg);
    background: rgba(55, 215, 240, 0.1);
  }

  .faq-panel {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.25s ease;
  }

  .faq-content {
    padding: 0 22px 22px 22px;
    border-top: 1px dashed rgba(148, 163, 184, 0.22);
    margin-top: 0;
    color: var(--muted);
    font-size: 15px;
    line-height: 1.8;
  }

  .faq-item.open .faq-panel {
    max-height: 420px;
  }

  .cta-panel {
    position: relative;
    border: 1px solid rgba(255, 255, 255, 0.13);
    background:
      linear-gradient(120deg, rgba(7, 16, 32, 0.85), rgba(14, 29, 58, 0.76)),
      url('/assets/images/backpic/back-3.png') no-repeat center;
    background-size: cover;
    border-radius: 24px;
    overflow: hidden;
    padding: 48px 36px;
  }

  .cta-panel::before {
    content: "";
    position: absolute;
    width: 420px;
    height: 420px;
    right: -120px;
    top: -180px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(55, 215, 240, 0.2), transparent 66%);
    pointer-events: none;
  }

  .fixed-bar {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 40;
    height: 64px;
    background: rgba(7, 16, 32, 0.84);
    border-top: 1px solid rgba(55, 215, 240, 0.18);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    box-shadow: 0 -1px 24px rgba(0, 0, 0, 0.24);
  }

  .fixed-bar-inner {
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: space-between;
  }

  .footer {
    background: var(--deep);
    border-top: 1px solid rgba(148, 163, 184, 0.12);
    padding: 56px 0 32px;
  }

  .footer-grid {
    display: grid;
    gap: 42px;
  }

  .footer-heading {
    color: var(--text);
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 0.08em;
    margin-bottom: 16px;
  }

  .footer-link {
    color: var(--weaker);
    font-size: 14px;
    transition: color 0.2s ease;
  }

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

  .footer-copy {
    color: var(--weaker);
    font-size: 13px;
    border-top: 1px solid rgba(148, 163, 184, 0.08);
    margin-top: 46px;
    padding-top: 24px;
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: space-between;
  }

  @media (min-width: 768px) {
    .container-site {
      width: min(100% - 3rem, var(--container));
    }

    .section {
      padding: 96px 0;
    }

    .feature-grid {
      grid-template-columns: repeat(3, minmax(0, 1fr));
      align-items: stretch;
    }

    .quote-grid {
      grid-template-columns: repeat(3, minmax(0, 1fr));
    }

    .footer-grid {
      grid-template-columns: 2fr 1fr 1fr 1.4fr;
      gap: 24px;
    }

    .cta-panel {
      padding: 64px 56px;
    }
  }

  @media (max-width: 767px) {
    .route-step + .route-step::before {
      width: 16px;
    }

    .metric-title {
      font-size: 13px;
    }

    .mobile-hide-phrase {
      display: none;
    }

    .fixed-bar-inner {
      justify-content: flex-end;
    }

    .cta-panel {
      padding: 36px 22px;
    }

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

  @media (max-width: 520px) {
    .hero-content {
      padding-top: 24px;
    }

    .stat-number {
      font-size: 44px;
    }

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

/* roulang page: category1 */
:root {
  --bg-deep: #071020;
  --bg-void: #050C1B;
  --bg-panel: #0E1D3A;
  --bg-soft: #0B1730;
  --text-main: #F1F5FB;
  --text-muted: #A5B4CE;
  --text-dim: #6E7FA0;
  --line-weak: rgba(148, 163, 184, 0.18);
  --brand: #37D7F0;
  --brand-press: #22B4D8;
  --accent: #7C9DF2;
  --signal: #F5C45A;
  --success: #45E0A0;
  --radius-card: 16px;
  --radius-item: 10px;
  --radius-btn: 8px;
  --radius-tag: 999px;
  --shadow-card: 0 20px 50px -24px rgba(0, 0, 0, 0.7);
  --font-sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", system-ui, "Segoe UI", sans-serif;
}

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

html {
  scroll-behavior: smooth;
  color-scheme: dark;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  background: var(--bg-deep);
  color: var(--text-main);
  line-height: 1.75;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

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

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

button,
input {
  font-family: inherit;
}

:focus-visible {
  outline: 2px solid rgba(55, 215, 240, 0.7);
  outline-offset: 3px;
  border-radius: 6px;
}

.container-site {
  width: 100%;
  max-width: 1200px;
  margin-inline: auto;
  padding-inline: clamp(1rem, 3vw, 2rem);
}

.section {
  padding-block: clamp(4rem, 8vw, 6rem);
}

.section-panel {
  background: rgba(11, 23, 48, 0.55);
}

.page-hero {
  position: relative;
  isolation: isolate;
  padding: clamp(7.5rem, 14vw, 10.5rem) 0 3.5rem;
  overflow: hidden;
  background: #050C1B;
}

.hero-visual-bg {
  position: absolute;
  inset: 0;
  z-index: -1;
  overflow: hidden;
}

.hero-visual-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.35;
}

.hero-visual-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(7, 16, 32, 0.82) 0%, rgba(7, 16, 32, 0.62) 44%, var(--bg-deep) 100%);
  pointer-events: none;
}

.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-bottom: 0.75rem;
  color: var(--text-muted);
  font-size: 0.875rem;
}

.breadcrumb a {
  transition: color 0.2s ease;
}

.breadcrumb a:hover {
  color: var(--brand);
}

.breadcrumb .sep {
  color: rgba(148, 163, 184, 0.4);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.25rem 0.85rem;
  border-radius: var(--radius-tag);
  border: 1px solid rgba(55, 215, 240, 0.24);
  background: rgba(55, 215, 240, 0.08);
  color: var(--brand);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  margin-bottom: 1rem;
}

.page-hero h1 {
  font-size: clamp(2.5rem, 5vw, 3.6rem);
  line-height: 1.2;
  font-weight: 800;
  letter-spacing: -0.01em;
  margin: 0 0 1.1rem;
}

.page-hero .hero-sub {
  max-width: 680px;
  font-size: clamp(1rem, 1.6vw, 1.125rem);
  line-height: 1.85;
  color: var(--text-muted);
  margin: 0 0 1.8rem;
}

.hero-actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.9rem;
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  height: 72px;
  border-bottom: 1px solid transparent;
  transition: background 0.3s ease, border-color 0.3s ease, backdrop-filter 0.3s ease;
}

.site-header.scrolled {
  background: rgba(7, 16, 32, 0.72);
  border-bottom-color: rgba(148, 163, 184, 0.14);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

.header-inner {
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  flex-shrink: 0;
}

.brand-text {
  font-size: 18px;
  font-weight: 700;
  color: #fff;
  letter-spacing: 0.01em;
  white-space: nowrap;
  line-height: 1.3;
}

.logo-mark {
  position: relative;
  display: block;
  width: 38px;
  height: 38px;
  flex: 0 0 38px;
  border: 1px solid rgba(55, 215, 240, 0.32);
  border-radius: 50%;
  background: radial-gradient(circle, rgba(55, 215, 240, 0.7) 0%, rgba(55, 215, 240, 0.05) 44%, transparent 60%);
}

.logo-mark::before {
  content: "";
  position: absolute;
  inset: 6px;
  border: 1px dashed rgba(55, 215, 240, 0.25);
  border-radius: 50%;
}

.logo-mark::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 3px;
  height: 22px;
  transform: translate(-50%, -50%) rotate(-40deg);
  background: linear-gradient(90deg, transparent, rgba(55, 215, 240, 0.8), transparent);
  border-radius: 3px;
  opacity: 0.75;
}

.nav-link {
  position: relative;
  display: inline-block;
  padding: 0.65rem 0.8rem;
  border-radius: 8px;
  color: var(--text-muted);
  font-size: 0.9375rem;
  font-weight: 500;
  transition: color 0.2s ease;
}

.nav-link:hover {
  color: #ffffff;
}

.nav-link.active {
  color: #ffffff;
  font-weight: 600;
}

.nav-link.active::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 0;
  width: 20px;
  height: 2px;
  transform: translateX(-50%);
  background: var(--brand);
  box-shadow: 0 0 10px rgba(55, 215, 240, 0.8);
  border-radius: 2px;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border: 1px solid rgba(148, 163, 184, 0.18);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.03);
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.2s ease;
}

.icon-btn:hover {
  color: #fff;
  border-color: rgba(55, 215, 240, 0.4);
  background: rgba(55, 215, 240, 0.08);
}

.header-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.55rem 1rem;
  border-radius: var(--radius-btn);
  background: linear-gradient(135deg, #52E5FF, #26BDE4);
  color: #052630;
  font-size: 0.9rem;
  font-weight: 600;
  box-shadow: 0 0 18px rgba(0, 228, 255, 0.24);
  transition: all 0.2s ease;
  white-space: nowrap;
}

.header-cta:hover {
  box-shadow: 0 0 26px rgba(0, 228, 255, 0.36);
  filter: brightness(1.04);
}

.header-cta:active {
  transform: scale(0.98);
  box-shadow: 0 0 12px rgba(0, 228, 255, 0.2);
}

.search-panel {
  position: absolute;
  top: calc(100% + 10px);
  right: 0;
  width: 320px;
  max-width: calc(100vw - 32px);
  display: none;
  background: rgba(8, 20, 42, 0.95);
  border: 1px solid rgba(148, 163, 184, 0.14);
  border-radius: 14px;
  padding: 0.65rem;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 24px 54px -22px rgba(0, 0, 0, 0.76);
}

.search-panel.open {
  display: block;
}

.search-form {
  display: flex;
  gap: 0.4rem;
}

.search-input {
  flex: 1;
  min-width: 0;
  height: 42px;
  padding: 0 0.9rem;
  border: 1px solid rgba(148, 163, 184, 0.18);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.04);
  color: #fff;
  font-size: 0.9rem;
  transition: border 0.2s ease, box-shadow 0.2s ease;
}

.search-input::placeholder {
  color: var(--text-dim);
}

.search-input:focus {
  outline: none;
  border-color: rgba(55, 215, 240, 0.55);
  box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.12);
}

.search-submit {
  height: 42px;
  padding: 0 1rem;
  border: 0;
  border-radius: 10px;
  background: linear-gradient(135deg, #52E5FF, #26BDE4);
  color: #052630;
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  transition: filter 0.2s ease, box-shadow 0.2s ease;
}

.search-submit:hover {
  filter: brightness(1.06);
  box-shadow: 0 0 20px rgba(0, 228, 255, 0.3);
}

.mobile-drawer {
  display: none;
  position: fixed;
  top: 72px;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 45;
  overflow-y: auto;
  padding: 1.4rem 1.25rem 2rem;
  background: #071020;
  border-top: 1px solid rgba(148, 163, 184, 0.1);
}

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

.mobile-drawer a {
  display: block;
  padding: 0.85rem 0.8rem;
  border-radius: 12px;
  color: var(--text-muted);
  font-size: 1.05rem;
  font-weight: 500;
  border: 1px solid transparent;
  transition: all 0.2s ease;
}

.mobile-drawer a:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.04);
}

.mobile-drawer a.active {
  color: #fff;
  border-color: rgba(55, 215, 240, 0.22);
  background: rgba(55, 215, 240, 0.08);
}

.btn-primary,
.btn-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.85rem 1.4rem;
  border-radius: var(--radius-btn);
  font-size: 0.9625rem;
  font-weight: 600;
  line-height: 1.2;
  cursor: pointer;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, #52E5FF, #26BDE4);
  border: 1px solid rgba(255, 255, 255, 0.18);
  color: #052630;
  box-shadow: 0 0 20px rgba(0, 228, 255, 0.3), inset 0 1px rgba(255, 255, 255, 0.32), inset 0 -2px rgba(0, 0, 0, 0.08);
}

.btn-primary:hover {
  filter: brightness(1.05);
  box-shadow: 0 0 28px rgba(0, 228, 255, 0.42), inset 0 1px rgba(255, 255, 255, 0.32), inset 0 -2px rgba(0, 0, 0, 0.08);
}

.btn-primary:active,
.btn-ghost:active {
  transform: scale(0.98);
  box-shadow: 0 0 12px rgba(0, 228, 255, 0.2);
}

.btn-ghost {
  border: 1px solid rgba(148, 163, 184, 0.3);
  background: rgba(255, 255, 255, 0.02);
  color: #eaf1fb;
}

.btn-ghost:hover {
  border-color: rgba(55, 215, 240, 0.55);
  color: #fff;
  box-shadow: inset 0 -1px 0 rgba(55, 215, 240, 0.2);
}

.btn-sm {
  padding: 0.5rem 0.95rem;
  font-size: 0.875rem;
}

.anchor-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: 2.4rem;
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.42rem 0.95rem;
  border-radius: var(--radius-tag);
  border: 1px solid rgba(148, 163, 184, 0.18);
  background: rgba(255, 255, 255, 0.035);
  color: var(--text-muted);
  font-size: 0.85rem;
  transition: all 0.2s ease;
}

.chip:hover {
  border-color: rgba(55, 215, 240, 0.4);
  color: #fff;
  background: rgba(55, 215, 240, 0.06);
}

.section-heading {
  max-width: 820px;
  margin-bottom: 2.5rem;
}

.section-kicker {
  display: block;
  font-size: 0.8125rem;
  letter-spacing: 0.08em;
  color: var(--brand);
  font-weight: 700;
  margin-bottom: 0.6rem;
}

.section-heading h2,
.section-title {
  font-size: clamp(1.6rem, 3vw, 2.1rem);
  line-height: 1.35;
  font-weight: 700;
  margin: 0;
  color: #fff;
}

.section-heading p {
  margin: 1rem 0 0;
  color: var(--text-muted);
  font-size: 1rem;
  line-height: 1.85;
}

.glass-card {
  position: relative;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.05), transparent 34%),
    rgba(255, 255, 255, 0.035);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  overflow: hidden;
  transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}

.glass-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 8%;
  right: 8%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
  opacity: 0.8;
}

.glass-card:hover {
  transform: translateY(-4px);
  border-color: rgba(55, 215, 240, 0.34);
  box-shadow: 0 0 0 1px rgba(55, 215, 240, 0.12), 0 20px 50px -24px rgba(0, 0, 0, 0.7);
}

.feature-card {
  min-height: 100%;
  padding: 1.7rem 1.5rem;
}

.feature-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 46px;
  margin-bottom: 1.1rem;
  border-radius: 12px;
  border: 1px solid rgba(55, 215, 240, 0.22);
  background: rgba(55, 215, 240, 0.07);
  color: var(--brand);
}

.feature-card h3 {
  margin: 0 0 0.55rem;
  font-size: 1.15rem;
  color: #fff;
  font-weight: 600;
}

.feature-card p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.9375rem;
  line-height: 1.8;
}

.feature-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  align-items: center;
  margin-bottom: 3.5rem;
}

.feature-media {
  position: relative;
  border-radius: 18px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: var(--bg-panel);
  box-shadow: var(--shadow-card);
}

.feature-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(7, 16, 32, 0.1), transparent 44%, rgba(7, 16, 32, 0.42));
}

.feature-media img {
  width: 100%;
  min-height: 260px;
  object-fit: cover;
}

.feature-media .media-caption {
  position: absolute;
  z-index: 2;
  left: 1.2rem;
  bottom: 1.1rem;
  right: 1.2rem;
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.8rem;
  padding: 0.7rem 1rem;
  border-radius: 12px;
  background: rgba(7, 16, 32, 0.55);
  border: 1px solid rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.media-caption span {
  color: var(--text-muted);
  font-size: 0.8rem;
  white-space: nowrap;
}

.media-caption strong {
  color: #fff;
  font-size: 0.875rem;
  font-weight: 600;
}

.feature-row-text h3 {
  font-size: 1.45rem;
  margin: 0 0 0.75rem;
  color: #fff;
  font-weight: 700;
}

.feature-row-text p {
  margin: 0 0 1rem;
  color: var(--text-muted);
  line-height: 1.85;
}

.feature-list {
  display: block;
  margin: 0;
  padding: 0;
  list-style: none;
}

.feature-list li {
  position: relative;
  padding-left: 1.5rem;
  margin-bottom: 0.65rem;
  color: var(--text-muted);
  line-height: 1.75;
}

.feature-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--brand);
  box-shadow: 0 0 8px rgba(55, 215, 240, 0.6);
}

.inline-link {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  color: var(--brand);
  font-size: 0.95rem;
  font-weight: 600;
  transition: color 0.2s ease;
}

.inline-link:hover {
  color: #7fe9fa;
}

.scenario-card {
  padding: 1.7rem 1.55rem;
}

.scenario-step {
  color: var(--signal);
  font-size: 0.875rem;
  font-weight: 700;
  margin-bottom: 0.8rem;
}

.scenario-card h3 {
  margin: 0 0 0.65rem;
  font-size: 1.2rem;
  color: #fff;
  font-weight: 600;
}

.scenario-card p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.8;
}

.scenario-link {
  display: inline-flex;
  align-items: center;
  margin-top: 1.1rem;
  color: var(--brand);
  font-size: 0.9rem;
  font-weight: 600;
  transition: color 0.2s ease;
}

.scenario-link:hover {
  color: #ffffff;
}

.table-wrap {
  margin-top: 2rem;
  overflow-x: auto;
}

.data-table-wrap {
  border-radius: 18px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(255, 255, 255, 0.03);
  overflow: hidden;
}

.data-table {
  width: 100%;
  min-width: 720px;
  border-collapse: collapse;
  background: rgba(5, 12, 27, 0.2);
}

.data-table caption {
  font-size: 0;
}

.data-table th {
  text-align: left;
  padding: 1rem 1.2rem;
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-muted);
  font-size: 0.85rem;
  letter-spacing: 0.03em;
  font-weight: 600;
  white-space: nowrap;
}

.data-table td {
  padding: 1rem 1.2rem;
  color: var(--text-muted);
  font-size: 0.95rem;
  border-top: 1px solid rgba(148, 163, 184, 0.12);
  vertical-align: top;
}

.data-table th:first-child {
  color: #fff;
}

.data-table td:first-child {
  color: #F1F5FB;
  font-weight: 600;
  font-size: 0.925rem;
}

.data-table tbody tr {
  transition: background 0.2s ease;
}

.data-table tbody tr:hover {
  background: rgba(55, 215, 240, 0.04);
}

.faq-list {
  display: grid;
  gap: 0.85rem;
}

.faq-item {
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 16px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.045), rgba(255, 255, 255, 0.02) 50%);
  box-shadow: var(--shadow-card);
  transition: border-color 0.2s ease, background 0.2s ease;
}

.faq-item[open] {
  border-color: rgba(55, 215, 240, 0.28);
  background: rgba(55, 215, 240, 0.03);
}

.faq-item summary {
  position: relative;
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.2rem 1.4rem;
  color: #fff;
  font-weight: 600;
  font-size: 1.02rem;
  line-height: 1.5;
  transition: color 0.2s ease;
  user-select: none;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::marker {
  content: "";
}

.faq-item summary:hover {
  color: var(--brand);
}

.faq-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  flex: 0 0 26px;
  border: 1px solid rgba(55, 215, 240, 0.26);
  border-radius: 50%;
  color: var(--brand);
  font-size: 1.1rem;
  font-weight: 400;
  line-height: 1;
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.faq-item[open] .faq-icon {
  transform: rotate(45deg);
  border-color: rgba(55, 215, 240, 0.65);
}

.faq-answer {
  padding: 0 1.4rem 1.3rem;
  color: var(--text-muted);
  font-size: 0.96rem;
  line-height: 1.9;
}

.faq-answer p {
  margin: 0 0 0.7rem;
}

.faq-answer p:last-child {
  margin-bottom: 0;
}

.cta-panel {
  border-radius: 22px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background:
    linear-gradient(180deg, rgba(7, 16, 32, 0.52), rgba(7, 16, 32, 0.88)),
    url('/assets/images/backpic/back-3.png') center / cover no-repeat;
  padding: clamp(2.5rem, 6vw, 4.5rem) clamp(1.25rem, 5vw, 4.5rem);
  text-align: center;
  box-shadow: var(--shadow-card);
  overflow: hidden;
}

.cta-panel h2 {
  font-size: clamp(1.7rem, 3.6vw, 2.3rem);
  line-height: 1.4;
  margin: 0 0 1rem;
  color: #fff;
  font-weight: 800;
}

.cta-panel p {
  max-width: 620px;
  margin: 0 auto 1.7rem;
  color: var(--text-muted);
  font-size: 1rem;
  line-height: 1.85;
}

.footer {
  background: #050C1B;
  border-top: 1px solid rgba(148, 163, 184, 0.14);
  margin-top: clamp(3.5rem, 8vw, 6rem);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  padding-top: 3.5rem;
  padding-bottom: 2.5rem;
}

.footer-heading {
  font-size: 1rem;
  color: #fff;
  font-weight: 600;
  margin: 0 0 1.1rem;
}

.footer-link {
  color: var(--text-muted);
  font-size: 0.9375rem;
  transition: color 0.2s ease;
}

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

.footer-copy {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  padding-block: 1.5rem;
  border-top: 1px solid rgba(148, 163, 184, 0.1);
  color: var(--text-dim);
  font-size: 0.875rem;
}

.footer-copy span {
  display: block;
}

section[id] {
  scroll-margin-top: 6rem;
}

@media (min-width: 640px) {
  .footer-copy {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
}

@media (min-width: 768px) {
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .feature-row {
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
  }

  .feature-row.flex-reverse .feature-media {
    order: 2;
  }
}

@media (min-width: 1024px) {
  .footer-grid {
    grid-template-columns: 1.45fr 0.8fr 0.85fr 1fr;
  }

  .feature-row {
    gap: 3.5rem;
    margin-bottom: 5rem;
  }

  .feature-media img {
    min-height: 320px;
  }
}

@media (max-width: 640px) {
  .page-hero .hero-sub {
    font-size: 1rem;
  }

  .feature-card {
    padding: 1.4rem 1.2rem;
  }

  .faq-item summary {
    padding: 1rem 1.1rem;
    font-size: 0.965rem;
  }

  .faq-answer {
    padding: 0 1.1rem 1.1rem;
  }
}

/* roulang page: article */
:root {
    --bg-deep: #071020;
    --bg-panel: #0B1730;
    --bg-soft: #0E1D3A;
    --text-main: #F1F5FB;
    --text-sub: #A5B4CE;
    --text-dim: #6E7FA0;
    --border-weak: rgba(148, 163, 184, 0.18);
    --primary: #37D7F0;
    --primary-hover: #22B4D8;
    --accent: #7C9DF2;
    --signal: #F5C45A;
    --success: #45E0A0;
    --radius-card: 16px;
    --radius-sm: 10px;
    --radius-btn: 8px;
    --shadow-card: 0 20px 50px -24px rgba(0, 0, 0, 0.7);
    --shadow-glow: 0 0 20px rgba(0, 228, 255, 0.35);
  }

  * {
    box-sizing: border-box;
  }

  html {
    scroll-behavior: smooth;
  }

  body {
    margin: 0;
    background: var(--bg-deep);
    color: var(--text-main);
    font-family: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans CJK SC', system-ui, sans-serif;
    font-size: 15px;
    line-height: 1.7;
    padding-top: 72px;
    -webkit-font-smoothing: antialiased;
  }

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

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

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

  a:focus-visible,
  button:focus-visible,
  input:focus-visible,
  summary:focus-visible {
    outline: 2px solid rgba(55, 215, 240, 0.6);
    outline-offset: 2px;
  }

  .container-site {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding-left: 32px;
    padding-right: 32px;
  }

  @media (max-width: 1024px) {
    .container-site {
      padding-left: 24px;
      padding-right: 24px;
    }
  }

  @media (max-width: 640px) {
    .container-site {
      padding-left: 16px;
      padding-right: 16px;
    }
  }

  .site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 50;
    height: 72px;
    background: rgba(7, 16, 32, 0.18);
    border-bottom: 1px solid transparent;
    transition: background 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
  }

  .site-header.is-scrolled {
    background: rgba(7, 16, 32, 0.72);
    -webkit-backdrop-filter: blur(14px);
    backdrop-filter: blur(14px);
    border-bottom-color: rgba(148, 163, 184, 0.12);
    box-shadow: 0 12px 40px -18px rgba(0, 0, 0, 0.6);
  }

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

  .logo-mark {
    position: relative;
    display: inline-block;
    width: 36px;
    height: 36px;
    border: 1px solid rgba(55, 215, 240, 0.5);
    border-radius: 50%;
    box-shadow: 0 0 18px rgba(55, 215, 240, 0.16), inset 0 0 12px rgba(55, 215, 240, 0.06);
  }

  .logo-mark::before {
    content: "";
    position: absolute;
    width: 7px;
    height: 7px;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    border-radius: 50%;
    background: var(--primary);
    box-shadow: 0 0 12px var(--primary);
  }

  .logo-mark::after {
    content: "";
    position: absolute;
    inset: 7px;
    border-radius: 50%;
    border: 1px dashed rgba(124, 157, 242, 0.6);
  }

  .nav-link {
    display: inline-flex;
    align-items: center;
    padding: 8px 14px;
    color: var(--text-sub);
    font-size: 14.5px;
    font-weight: 500;
    border-radius: 999px;
    position: relative;
    transition: color 0.25s ease, background 0.25s ease;
  }

  .nav-link:hover {
    color: #fff;
    background: rgba(255, 255, 255, 0.04);
  }

  .nav-link.active {
    color: #fff;
  }

  .nav-link.active::after {
    content: "";
    position: absolute;
    left: 50%;
    bottom: 4px;
    width: 20px;
    height: 2px;
    border-radius: 2px;
    background: linear-gradient(90deg, transparent, var(--primary), transparent);
    transform: translateX(-50%);
    box-shadow: 0 0 10px rgba(55, 215, 240, 0.9);
  }

  .header-actions {
    position: relative;
    display: flex;
    align-items: center;
    gap: 10px;
  }

  .search-toggle,
  .menu-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    border-radius: 10px;
    border: 1px solid rgba(148, 163, 184, 0.22);
    background: rgba(255, 255, 255, 0.03);
    color: var(--text-sub);
    cursor: pointer;
    transition: all 0.25s ease;
  }

  .search-toggle:hover,
  .menu-toggle:hover {
    border-color: rgba(55, 215, 240, 0.5);
    color: var(--primary);
  }

  .search-pop {
    position: absolute;
    right: 0;
    top: 52px;
    width: 330px;
    padding: 18px;
    border-radius: 16px;
    background: rgba(11, 23, 48, 0.96);
    border: 1px solid rgba(148, 163, 184, 0.18);
    box-shadow: 0 24px 60px -20px rgba(0, 0, 0, 0.7);
    -webkit-backdrop-filter: blur(14px);
    backdrop-filter: blur(14px);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: all 0.25s ease;
  }

  .search-pop.open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }

  .mobile-drawer {
    position: fixed;
    inset: 0;
    z-index: 80;
    background: rgba(7, 16, 32, 0.96);
    -webkit-backdrop-filter: blur(18px);
    backdrop-filter: blur(18px);
    padding: 100px 24px 36px;
    transform: translateX(100%);
    visibility: hidden;
    transition: transform 0.35s ease, visibility 0.35s ease;
    overflow-y: auto;
  }

  .mobile-drawer.open {
    transform: translateX(0);
    visibility: visible;
  }

  .mobile-drawer-link {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 18px;
    margin-bottom: 10px;
    color: var(--text-main);
    border: 1px solid rgba(148, 163, 184, 0.14);
    border-radius: 14px;
    background: rgba(255, 255, 255, 0.03);
    font-weight: 500;
    transition: border-color 0.25s ease, background 0.25s ease;
  }

  .mobile-drawer-link:hover {
    border-color: rgba(55, 215, 240, 0.45);
    background: rgba(255, 255, 255, 0.05);
  }

  .mobile-drawer-link.active {
    color: var(--primary);
    border-color: rgba(55, 215, 240, 0.4);
  }

  .btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    background: linear-gradient(135deg, #52E5FF, #26BDE4);
    color: #052630;
    font-weight: 600;
    padding: 10px 18px;
    border: none;
    border-radius: 8px;
    font-size: 14px;
    cursor: pointer;
    white-space: nowrap;
    box-shadow: 0 0 20px rgba(0, 228, 255, 0.32), inset 0 1px rgba(255, 255, 255, 0.4);
    transition: box-shadow 0.25s ease, transform 0.15s ease, filter 0.25s ease;
  }

  .btn-primary:hover {
    filter: brightness(1.06);
    box-shadow: 0 0 26px rgba(0, 228, 255, 0.45), inset 0 1px rgba(255, 255, 255, 0.45);
  }

  .btn-primary:active {
    transform: scale(0.98);
    box-shadow: 0 0 12px rgba(0, 228, 255, 0.26);
  }

  .btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    border: 1px solid rgba(148, 163, 184, 0.3);
    color: #F1F5FB;
    background: transparent;
    border-radius: 8px;
    padding: 10px 18px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    white-space: nowrap;
    position: relative;
    transition: border-color 0.25s ease, color 0.25s ease, box-shadow 0.25s ease;
  }

  .btn-secondary:hover {
    color: #fff;
    border-color: rgba(55, 215, 240, 0.55);
    box-shadow: 0 6px 16px -8px rgba(55, 215, 240, 0.4);
  }

  .btn-secondary::after {
    content: "";
    position: absolute;
    left: 10%;
    right: 10%;
    bottom: 0;
    height: 2px;
    border-radius: 2px;
    background: linear-gradient(90deg, transparent, var(--primary), transparent);
    opacity: 0;
    transition: opacity 0.25s ease;
  }

  .btn-secondary:hover::after {
    opacity: 1;
  }

  .glass-card {
    position: relative;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.045), rgba(255, 255, 255, 0.015)), rgba(11, 23, 48, 0.48);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 16px;
    box-shadow: 0 20px 50px -24px rgba(0, 0, 0, 0.7);
  }

  .glass-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 100%;
    pointer-events: none;
    border-radius: inherit;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.07), transparent 30%);
  }

  .article-banner {
    position: relative;
    padding: 72px 0 56px;
    background-color: var(--bg-panel);
    background-size: cover;
    background-position: center;
    overflow: hidden;
    background-image: linear-gradient(90deg, rgba(7, 16, 32, 0.96) 0%, rgba(11, 23, 48, 0.82) 55%, rgba(14, 29, 58, 0.6)), url('/assets/images/backpic/back-2.png');
  }

  .article-banner::after {
    content: "";
    position: absolute;
    width: 340px;
    height: 340px;
    border-radius: 50%;
    right: -120px;
    top: -120px;
    background: radial-gradient(circle, rgba(55, 215, 240, 0.16), transparent 70%);
    pointer-events: none;
  }

  .breadcrumb {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--text-dim);
  }

  .breadcrumb a {
    color: var(--text-sub);
    transition: color 0.25s ease;
  }

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

  .article-panel {
    position: relative;
    border-radius: 20px;
    padding: 42px;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.045), rgba(255, 255, 255, 0.01)), rgba(11, 23, 48, 0.55);
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 24px 60px -28px rgba(0, 0, 0, 0.8);
    overflow: hidden;
  }

  .article-panel::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 100%;
    pointer-events: none;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.07), transparent 28%);
  }

  .article-title {
    font-size: clamp(1.9rem, 4.2vw, 2.8rem);
    line-height: 1.25;
    font-weight: 800;
    color: #fff;
    letter-spacing: -0.01em;
    margin: 0 0 14px;
  }

  .article-divider {
    height: 1px;
    background: linear-gradient(90deg, rgba(55, 215, 240, 0.4), rgba(148, 163, 184, 0.08));
    margin: 24px 0;
  }

  .article-body {
    position: relative;
    z-index: 1;
    font-size: 16px;
    line-height: 1.85;
    color: #D3DCEC;
    word-break: break-word;
  }

  .article-body h2 {
    font-size: 24px;
    font-weight: 700;
    color: #fff;
    margin: 2em 0 0.8em;
    padding-bottom: 0.45em;
    border-bottom: 1px solid rgba(148, 163, 184, 0.16);
  }

  .article-body h3 {
    font-size: 19px;
    font-weight: 700;
    color: #EDF3FC;
    margin: 1.8em 0 0.65em;
  }

  .article-body h4 {
    font-size: 17px;
    font-weight: 600;
    color: #E6EDF7;
    margin: 1.5em 0 0.5em;
  }

  .article-body p {
    margin: 0 0 18px;
  }

  .article-body a {
    color: var(--primary);
    border-bottom: 1px solid rgba(55, 215, 240, 0.25);
    transition: color 0.25s ease, border-color 0.25s ease;
  }

  .article-body a:hover {
    color: #fff;
    border-color: rgba(255, 255, 255, 0.45);
  }

  .article-body ul,
  .article-body ol {
    margin: 0 0 22px;
    padding-left: 24px;
  }

  .article-body li {
    margin-bottom: 8px;
  }

  .article-body img {
    border-radius: 14px;
    margin: 24px 0;
    box-shadow: 0 18px 44px -20px rgba(0, 0, 0, 0.8);
  }

  .article-body blockquote {
    border-left: 2px solid var(--primary);
    padding: 14px 20px;
    background: rgba(255, 255, 255, 0.035);
    border-radius: 0 14px 14px 0;
    color: var(--text-sub);
    margin: 0 0 22px;
  }

  .article-body table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    border: 1px solid rgba(148, 163, 184, 0.18);
    border-radius: 12px;
    overflow: hidden;
    margin: 0 0 24px;
    font-size: 14px;
  }

  .article-body th {
    background: rgba(124, 157, 242, 0.12);
    color: #fff;
    text-align: left;
    padding: 12px 14px;
    font-weight: 600;
  }

  .article-body td {
    border-top: 1px solid rgba(148, 163, 184, 0.1);
    padding: 11px 14px;
    color: var(--text-sub);
  }

  .article-body strong {
    color: #fff;
  }

  .side-card {
    position: relative;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.04), rgba(255, 255, 255, 0.012)), rgba(11, 23, 48, 0.5);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 16px;
    padding: 22px;
    overflow: hidden;
    box-shadow: 0 18px 48px -26px rgba(0, 0, 0, 0.8);
  }

  .side-card::before {
    content: "";
    position: absolute;
    inset: 0 0 auto 0;
    height: 100%;
    pointer-events: none;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.06), transparent 28%);
  }

  .side-title {
    position: relative;
    font-size: 16px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 16px;
  }

  .side-link {
    position: relative;
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 12px;
    border-radius: 12px;
    color: var(--text-sub);
    transition: color 0.25s ease, background 0.25s ease, transform 0.25s ease;
  }

  .side-link:hover {
    color: #fff;
    background: rgba(55, 215, 240, 0.08);
    transform: translateX(3px);
  }

  .side-link-icon {
    width: 32px;
    height: 32px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 10px;
    color: var(--primary);
    background: rgba(55, 215, 240, 0.1);
    font-size: 14px;
    flex: none;
  }

  .aside-cta {
    border-radius: 16px;
    background: linear-gradient(135deg, rgba(55, 215, 240, 0.16), rgba(124, 157, 242, 0.08));
    border: 1px solid rgba(55, 215, 240, 0.2);
    padding: 24px;
    position: relative;
  }

  .footer {
    background: #050C1B;
    border-top: 1px solid rgba(148, 163, 184, 0.14);
    padding: 76px 0 130px;
  }

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

  .footer-heading {
    font-size: 15px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 16px;
    letter-spacing: 0.02em;
  }

  .footer-link {
    color: #7F8EA9;
    transition: color 0.25s ease;
  }

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

  .footer-copy {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 12px;
    color: #5A6B87;
    font-size: 13px;
    border-top: 1px solid rgba(148, 163, 184, 0.14);
    padding-top: 24px;
    margin-top: 44px;
  }

  .fixbar {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 45;
    height: 64px;
    background: rgba(8, 17, 34, 0.88);
    -webkit-backdrop-filter: blur(14px);
    backdrop-filter: blur(14px);
    border-top: 1px solid rgba(55, 215, 240, 0.24);
    box-shadow: 0 -12px 32px rgba(0, 0, 0, 0.25);
    display: flex;
    align-items: center;
  }

  .fixbar-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
  }

  .chip {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    border-radius: 999px;
    border: 1px solid rgba(148, 163, 184, 0.2);
    background: rgba(255, 255, 255, 0.04);
    color: var(--text-sub);
    padding: 4px 12px;
    font-size: 13px;
  }

  .tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    border-radius: 999px;
    border: 1px solid rgba(148, 163, 184, 0.2);
    background: rgba(255, 255, 255, 0.03);
    color: var(--text-sub);
    padding: 6px 14px;
    font-size: 13px;
    margin: 4px 4px 0 0;
    transition: border-color 0.2s ease, color 0.2s ease;
  }

  .tag:hover {
    border-color: rgba(55, 215, 240, 0.45);
    color: #fff;
  }

  .status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--success);
    box-shadow: 0 0 12px rgba(69, 224, 160, 0.7);
    display: inline-block;
    animation: pulse-dot 2s ease infinite;
  }

  @keyframes pulse-dot {
    0%, 100% {
      opacity: 1;
      transform: scale(1);
    }
    50% {
      opacity: 0.55;
      transform: scale(0.8);
    }
  }

  .article-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: 28px;
  }

  @media (min-width: 1200px) {
    .article-grid {
      grid-template-columns: minmax(0, 1fr) 310px;
    }
  }

  @media (max-width: 1024px) {
    .footer-grid {
      grid-template-columns: 1fr 1fr;
      gap: 32px;
    }
    .article-panel {
      padding: 34px;
    }
  }

  @media (max-width: 640px) {
    .footer-grid {
      grid-template-columns: 1fr;
      gap: 28px;
    }
    .article-panel {
      padding: 24px 18px;
      border-radius: 16px;
    }
    .article-body {
      font-size: 15px;
      line-height: 1.8;
    }
    .fixbar-text {
      display: none;
    }
    .search-pop {
      width: calc(100vw - 32px);
      right: 16px;
    }
  }

/* roulang page: category2 */
:root {
  --bg: #071020;
  --panel: #0B1730;
  --panel2: #0E1D3A;
  --text: #F1F5FB;
  --muted: #A5B4CE;
  --faint: #6E7FA0;
  --brand: #37D7F0;
  --brand-dark: #22B4D8;
  --support: #7C9DF2;
  --signal: #F5C45A;
  --success: #45E0A0;
  --border: rgba(148, 163, 184, 0.18);
  --glass-border: rgba(255, 255, 255, 0.1);
  --glass-fill: rgba(255, 255, 255, 0.045);
  --shadow-soft: 0 20px 50px -24px rgba(0, 0, 0, 0.7);
  --radius-card: 16px;
  --radius-box: 10px;
  --radius-btn: 8px;
  --radius-tag: 999px;
}
* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  margin: 0;
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}
img {
  max-width: 100%;
  display: block;
}
a {
  text-decoration: none;
  color: inherit;
}
button,
input {
  font-family: inherit;
  border: none;
  background: none;
  color: inherit;
}
input:focus,
button:focus {
  outline: 2px solid rgba(55, 215, 240, 0.45);
  outline-offset: 2px;
}
.container-site {
  max-width: 1200px;
  margin: 0 auto;
  padding-left: 32px;
  padding-right: 32px;
}
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  background: transparent;
  transition: background 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
  border-bottom: 1px solid transparent;
}
.site-header.scrolled {
  background: rgba(7, 16, 32, 0.82);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(148, 163, 184, 0.16);
  box-shadow: 0 12px 34px -28px rgba(0, 0, 0, 0.9);
}
.logo-mark {
  position: relative;
  width: 36px;
  height: 36px;
  min-width: 36px;
  border-radius: 11px;
  background: linear-gradient(145deg, rgba(55, 215, 240, 0.18), rgba(7, 16, 32, 0.2));
  border: 1px solid rgba(55, 215, 240, 0.35);
  display: inline-block;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.22), 0 0 20px rgba(55, 215, 240, 0.14);
}
.logo-mark::before,
.logo-mark::after {
  content: "";
  position: absolute;
  margin: auto;
  left: 0;
  right: 0;
  border-radius: 999px;
}
.logo-mark::before {
  top: 8px;
  width: 14px;
  height: 14px;
  border: 2px solid var(--brand);
  border-left-color: transparent;
  transform: rotate(30deg);
  box-shadow: 0 0 8px rgba(55, 215, 240, 0.5);
}
.logo-mark::after {
  bottom: 7px;
  width: 18px;
  height: 3px;
  background: rgba(124, 157, 242, 0.9);
  box-shadow: 0 0 6px rgba(124, 157, 242, 0.6);
}
.nav-link {
  position: relative;
  display: inline-block;
  font-size: 14px;
  font-weight: 500;
  color: var(--muted);
  padding: 9px 14px;
  border-radius: 999px;
  transition: color 0.2s ease, background 0.2s ease;
}
.nav-link:hover {
  color: #ffffff;
  background: rgba(255, 255, 255, 0.05);
}
.nav-link.active {
  color: #ffffff;
  font-weight: 600;
}
.nav-link.active::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 1px;
  transform: translateX(-50%);
  width: 20px;
  height: 2px;
  border-radius: 999px;
  background: var(--brand);
  box-shadow: 0 0 10px rgba(55, 215, 240, 0.8);
}
.btn-main {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 42px;
  padding: 0 20px;
  border-radius: var(--radius-btn);
  background: linear-gradient(135deg, #52E5FF, #26BDE4);
  color: #052630;
  font-weight: 600;
  font-size: 14px;
  white-space: nowrap;
  border: 1px solid rgba(255, 255, 255, 0.18);
  box-shadow: 0 0 20px rgba(0, 228, 255, 0.35), inset 0 1px 0 rgba(255, 255, 255, 0.45);
  transition: box-shadow 0.2s ease, filter 0.2s ease, transform 0.15s ease;
}
.btn-main:hover {
  filter: brightness(1.05);
  box-shadow: 0 0 26px rgba(0, 228, 255, 0.46), inset 0 1px 0 rgba(255, 255, 255, 0.5);
}
.btn-main:active {
  transform: scale(0.97);
  box-shadow: 0 0 12px rgba(0, 228, 255, 0.3);
}
.btn-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 42px;
  padding: 0 20px;
  border-radius: var(--radius-btn);
  border: 1px solid rgba(148, 163, 184, 0.3);
  color: var(--text);
  font-size: 14px;
  font-weight: 500;
  background: rgba(255, 255, 255, 0.02);
  transition: border-color 0.2s ease, background 0.2s ease;
}
.btn-ghost:hover {
  border-color: rgba(55, 215, 240, 0.55);
  background: rgba(55, 215, 240, 0.05);
}
.page-hero-bg {
  position: absolute;
  inset: 0;
  background-image: linear-gradient(110deg, rgba(7, 16, 32, 0.95) 6%, rgba(11, 23, 48, 0.8) 50%, rgba(7, 16, 32, 0.82) 100%), url("/assets/images/backpic/back-1.webp");
  background-size: cover;
  background-position: center top;
  border-bottom: 1px solid rgba(148, 163, 184, 0.15);
}
.glass-card {
  position: relative;
  background: var(--glass-fill);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-soft);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  overflow: hidden;
}
.glass-card::before {
  content: "";
  display: block;
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.28), transparent);
  opacity: 0.8;
}
.guide-card-link {
  transition: transform 0.25s ease, border-color 0.25s ease, background 0.25s ease;
}
.guide-card-link:hover {
  transform: translateY(-4px);
  border-color: rgba(55, 215, 240, 0.55);
  background: rgba(255, 255, 255, 0.07);
  box-shadow: 0 24px 60px -26px rgba(0, 0, 0, 0.8);
}
.arrow-icon {
  width: 34px;
  height: 34px;
  border-radius: 999px;
  border: 1px solid rgba(55, 215, 240, 0.3);
  color: var(--brand);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  transition: background 0.2s ease, color 0.2s ease, transform 0.2s ease;
}
.guide-card-link:hover .arrow-icon {
  background: var(--brand);
  color: #052630;
  transform: translateX(3px);
}
.guide-nav {
  position: relative;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.09);
  border-radius: 18px;
  padding: 20px 12px;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}
.guide-nav-title {
  font-size: 13px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--faint);
  padding: 0 14px 14px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.07);
  margin-bottom: 12px;
}
.guide-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  border-radius: 12px;
  color: var(--muted);
  font-size: 14px;
  transition: color 0.2s ease, background 0.2s ease;
  border: 1px solid transparent;
}
.guide-link:hover {
  color: #ffffff;
  background: rgba(255, 255, 255, 0.05);
}
.guide-link.active {
  color: #ffffff;
  border-color: rgba(55, 215, 240, 0.24);
  background: rgba(55, 215, 240, 0.1);
}
.guide-step-dot {
  width: 22px;
  height: 22px;
  border-radius: 999px;
  background: rgba(55, 215, 240, 0.12);
  border: 1px solid rgba(55, 215, 240, 0.35);
  color: var(--brand);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 600;
  flex-shrink: 0;
}
.guide-link.active .guide-step-dot {
  background: var(--brand);
  color: #052630;
}
.guide-block {
  position: relative;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(255, 255, 255, 0.045);
  border-radius: 20px;
  padding: 30px;
  box-shadow: var(--shadow-soft);
  overflow: hidden;
}
.guide-block::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, rgba(55, 215, 240, 0.4), transparent 70%);
}
.guide-step-num {
  display: inline-flex;
  align-items: center;
  font-size: 14px;
  font-weight: 600;
  color: var(--brand);
  letter-spacing: 0.04em;
  margin-bottom: 8px;
}
.guide-step-num span {
  display: block;
  width: 34px;
  height: 2px;
  background: rgba(55, 215, 240, 0.6);
  border-radius: 999px;
  margin-right: 10px;
}
.tag-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border: 1px solid rgba(148, 163, 184, 0.25);
  border-radius: 999px;
  padding: 5px 12px;
  font-size: 13px;
  color: var(--muted);
  background: rgba(255, 255, 255, 0.03);
  transition: border-color 0.2s ease, background 0.2s ease;
}
.tag-chip:hover {
  border-color: rgba(55, 215, 240, 0.5);
  background: rgba(55, 215, 240, 0.08);
}
.check-list li {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.8;
}
.check-list li::before {
  content: "✓";
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  border-radius: 999px;
  background: rgba(55, 215, 240, 0.12);
  border: 1px solid rgba(55, 215, 240, 0.3);
  color: var(--brand);
  font-size: 11px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-top: 5px;
}
.faq-item {
  background: rgba(255, 255, 255, 0.045);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 16px;
  overflow: hidden;
  transition: border-color 0.2s ease;
}
.faq-item.open {
  border-color: rgba(55, 215, 240, 0.36);
}
.faq-que {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 20px 24px;
  text-align: left;
  color: var(--text);
  font-size: 16px;
  font-weight: 600;
  line-height: 1.6;
  cursor: pointer;
}
.faq-que:hover .faq-que-text {
  color: var(--brand);
}
.faq-que-text {
  transition: color 0.2s ease;
}
.faq-icon {
  position: relative;
  display: inline-block;
  width: 26px;
  height: 26px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(148, 163, 184, 0.35);
  flex-shrink: 0;
}
.faq-icon::before,
.faq-icon::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  border-radius: 999px;
  background: var(--muted);
  transform: translate(-50%, -50%);
}
.faq-icon::before {
  width: 10px;
  height: 2px;
}
.faq-icon::after {
  width: 2px;
  height: 10px;
  transition: transform 0.2s ease;
}
.faq-item.open .faq-icon::after {
  transform: translate(-50%, -50%) rotate(90deg);
}
.faq-item.open .faq-icon {
  border-color: rgba(55, 215, 240, 0.5);
}
.faq-ans {
  display: none;
  border-top: 1px dashed rgba(148, 163, 184, 0.25);
  margin: 0 24px;
  padding: 18px 0 22px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.9;
}
.faq-item.open .faq-ans {
  display: block;
}
.cta-section {
  position: relative;
  border-radius: 24px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background-image: linear-gradient(120deg, rgba(7, 16, 32, 0.94), rgba(14, 29, 58, 0.82)), url("/assets/images/backpic/back-3.png");
  background-size: cover;
  background-position: center;
  padding: 64px 40px;
}
.footer {
  background: #050C1B;
  border-top: 1px solid rgba(148, 163, 184, 0.14);
  margin-top: 96px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.4fr;
  gap: 40px;
  padding: 64px 0 44px;
}
.footer-heading {
  font-size: 14px;
  font-weight: 600;
  color: #F1F5FB;
  margin-bottom: 18px;
  letter-spacing: 0.02em;
}
.footer-link {
  color: #7C8FAA;
  font-size: 14px;
  transition: color 0.2s ease;
}
.footer-link:hover {
  color: var(--brand);
}
.footer-copy {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  font-size: 13px;
  color: #5C6C85;
  padding: 24px 0 32px;
  border-top: 1px solid rgba(148, 163, 184, 0.09);
  flex-wrap: wrap;
}
.header-search-panel {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  width: 340px;
  max-width: calc(100vw - 32px);
  background: rgba(7, 16, 32, 0.96);
  border: 1px solid rgba(148, 163, 184, 0.24);
  border-radius: 16px;
  padding: 16px;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 24px 60px -30px rgba(0, 0, 0, 0.9);
}
.header-search-panel input {
  width: 100%;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(148, 163, 184, 0.28);
  border-radius: 10px;
  height: 40px;
  padding: 0 14px;
  color: #F1F5FB;
  font-size: 14px;
  transition: box-shadow 0.2s ease, border-color 0.2s ease;
}
.header-search-panel input:focus {
  border-color: rgba(55, 215, 240, 0.6);
  box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.12);
}
.header-search-panel input::placeholder {
  color: #6E7FA0;
}
.mobile-menu {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 55;
  background: #071020;
  padding: 88px 20px 32px;
  overflow-y: auto;
  border-radius: 0 0 22px 22px;
  box-shadow: 0 30px 60px -30px rgba(0, 0, 0, 0.8);
}
.mobile-menu-link {
  display: block;
  padding: 16px 18px;
  margin-bottom: 10px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.09);
  border-radius: 14px;
  color: #A5B4CE;
  font-size: 16px;
  transition: background 0.2s ease, color 0.2s ease;
}
.mobile-menu-link.active,
.mobile-menu-link:hover {
  color: #ffffff;
  background: rgba(55, 215, 240, 0.12);
  border-color: rgba(55, 215, 240, 0.3);
}
.bottom-fixed-bar {
  position: fixed;
  right: 20px;
  bottom: 20px;
  left: 20px;
  z-index: 35;
  background: rgba(7, 16, 32, 0.84);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 16px;
  padding: 14px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  box-shadow: 0 18px 50px -28px rgba(0, 0, 0, 0.95), inset 0 1px 0 rgba(255, 255, 255, 0.15);
  max-width: 680px;
  margin: 0 auto;
}
@media (min-width: 1024px) {
  .bottom-fixed-bar {
    left: auto;
    right: 32px;
    margin: 0;
    width: 620px;
  }
}
@media (max-width: 768px) {
  .container-site {
    padding-left: 24px;
    padding-right: 24px;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    padding-top: 48px;
  }
  .cta-section {
    padding: 40px 24px;
  }
}
@media (max-width: 560px) {
  .container-site {
    padding-left: 16px;
    padding-right: 16px;
  }
  .guide-block {
    padding: 24px 18px;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .footer-copy {
    flex-direction: column;
    text-align: center;
  }
  .bottom-fixed-bar .bar-text {
    display: none;
  }
}

/* roulang page: category3 */
:root {
      --bg: #071020;
      --bg-secondary: #0B1730;
      --bg-third: #0E1D3A;
      --text: #F1F5FB;
      --text-secondary: #A5B4CE;
      --text-faint: #6E7FA0;
      --border-soft: rgba(148, 163, 184, 0.18);
      --brand: #37D7F0;
      --brand-pressed: #22B4D8;
      --assist: #7C9DF2;
      --signal: #F5C45A;
      --success: #45E0A0;
      --radius-card: 16px;
      --radius-item: 10px;
      --radius-btn: 8px;
      --shadow-card: 0 20px 50px -24px rgba(0, 0, 0, 0.7);
    }

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

    html {
      scroll-behavior: smooth;
    }

    body {
      background: var(--bg);
      color: var(--text);
      font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", system-ui, -apple-system, sans-serif;
      line-height: 1.75;
      -webkit-font-smoothing: antialiased;
    }

    body.menu-open {
      overflow: hidden;
    }

    a,
    button,
    input {
      transition: all 0.2s ease;
    }

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

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

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

    .container-site {
      width: 100%;
      max-width: 1200px;
      margin: 0 auto;
      padding-left: 32px;
      padding-right: 32px;
    }

    @media (min-width: 769px) and (max-width: 1023px) {
      .container-site {
        padding-left: 24px;
        padding-right: 24px;
      }
    }

    @media (max-width: 768px) {
      .container-site {
        padding-left: 16px;
        padding-right: 16px;
      }
    }

    .site-header {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      z-index: 50;
      height: 72px;
      border-bottom: 1px solid transparent;
      transition: background 0.3s ease, border-color 0.3s ease, backdrop-filter 0.3s ease;
    }

    .site-header.is-scrolled {
      background: rgba(7, 16, 32, 0.82);
      border-bottom: 1px solid rgba(148, 163, 184, 0.16);
      backdrop-filter: blur(16px);
    }

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

    .brand-area {
      display: flex;
      align-items: center;
      gap: 12px;
      flex-shrink: 0;
    }

    .logo-mark {
      position: relative;
      width: 36px;
      height: 36px;
      border-radius: 12px;
      background: rgba(55, 215, 240, 0.12);
      border: 1px solid rgba(55, 215, 240, 0.35);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      box-shadow: 0 0 22px rgba(55, 215, 240, 0.14) inset, 0 0 18px rgba(55, 215, 240, 0.1);
    }

    .logo-mark::before {
      content: "";
      width: 12px;
      height: 12px;
      border-radius: 4px;
      background: linear-gradient(135deg, #52E5FF, #22B4D8);
      box-shadow: 0 0 12px rgba(55, 215, 240, 0.65);
    }

    .brand-name {
      font-size: 19px;
      font-weight: 800;
      letter-spacing: 0.02em;
      color: #fff;
      white-space: nowrap;
    }

    .nav-link {
      position: relative;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 8px 12px;
      font-size: 15px;
      color: var(--text-secondary);
      line-height: 1;
      border-radius: 8px;
      letter-spacing: 0.02em;
    }

    .nav-link:hover {
      color: #fff;
      background: rgba(255, 255, 255, 0.04);
    }

    .nav-link::after {
      content: "";
      position: absolute;
      left: 50%;
      bottom: -2px;
      width: 20px;
      height: 2px;
      border-radius: 2px;
      background: linear-gradient(90deg, transparent, var(--brand), transparent);
      transform: translateX(-50%) scaleX(0);
      transition: transform 0.25s ease;
      box-shadow: 0 0 8px rgba(55, 215, 240, 0.8);
    }

    .nav-link:hover::after,
    .nav-link.active::after {
      transform: translateX(-50%) scaleX(1);
    }

    .nav-link.active {
      color: #ffffff;
    }

    .btn-primary,
    .btn-ghost,
    .btn-signal {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      border-radius: var(--radius-btn);
      padding: 10px 22px;
      font-size: 15px;
      font-weight: 600;
      min-height: 44px;
      border: 1px solid transparent;
      user-select: none;
    }

    .btn-primary {
      background: linear-gradient(135deg, #52E5FF, #26BDE4);
      color: #052630;
      box-shadow: 0 0 20px rgba(0, 228, 255, 0.35), 0 6px 22px rgba(0, 0, 0, 0.2);
      border-radius: var(--radius-btn);
    }

    .btn-primary:hover {
      filter: brightness(1.06);
      box-shadow: 0 0 28px rgba(0, 228, 255, 0.46), 0 10px 28px rgba(0, 0, 0, 0.26);
    }

    .btn-primary:active {
      transform: scale(0.98);
      box-shadow: 0 0 14px rgba(0, 228, 255, 0.32);
    }

    .btn-ghost {
      border: 1px solid rgba(148, 163, 184, 0.32);
      color: #fff;
      background: rgba(255, 255, 255, 0.02);
    }

    .btn-ghost:hover {
      border-color: rgba(55, 215, 240, 0.65);
      background: rgba(55, 215, 240, 0.06);
      box-shadow: inset 0 -2px 8px rgba(55, 215, 240, 0.15);
    }

    .btn-ghost:active {
      transform: scale(0.98);
    }

    .btn-sm {
      min-height: 38px;
      padding: 8px 16px;
      font-size: 14px;
    }

    .menu-button {
      width: 42px;
      height: 42px;
      border-radius: 10px;
      border: 1px solid rgba(148, 163, 184, 0.2);
      background: rgba(255, 255, 255, 0.03);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      color: #fff;
    }

    .menu-button:hover {
      border-color: rgba(55, 215, 240, 0.5);
      background: rgba(55, 215, 240, 0.08);
    }

    .mobile-menu {
      position: fixed;
      inset: 0;
      z-index: 80;
      background: rgba(5, 12, 27, 0.98);
      transform: translateX(100%);
      visibility: hidden;
      transition: transform 0.32s ease, visibility 0.32s ease;
      padding: 96px 24px 32px;
      display: flex;
      flex-direction: column;
      gap: 8px;
    }

    .mobile-menu.open {
      transform: translateX(0);
      visibility: visible;
    }

    .mobile-link {
      display: block;
      font-size: 18px;
      font-weight: 600;
      color: var(--text-secondary);
      padding: 14px 18px;
      border-radius: 12px;
      border: 1px solid rgba(148, 163, 184, 0.14);
      background: rgba(255, 255, 255, 0.03);
      margin-bottom: 10px;
    }

    .mobile-link:hover,
    .mobile-link.active {
      color: #fff;
      border-color: rgba(55, 215, 240, 0.4);
      background: rgba(55, 215, 240, 0.08);
    }

    .menu-close {
      position: absolute;
      top: 22px;
      right: 24px;
      width: 44px;
      height: 44px;
      border-radius: 12px;
      border: 1px solid rgba(148, 163, 184, 0.2);
      color: #fff;
      display: flex;
      align-items: center;
      justify-content: center;
      background: rgba(255, 255, 255, 0.04);
    }

    .menu-close:hover {
      border-color: var(--brand);
    }

    .hero-cat {
      position: relative;
      padding: 150px 0 64px;
      overflow: hidden;
      background:
        linear-gradient(180deg, rgba(7, 16, 32, 0.78), rgba(7, 16, 32, 0.96)),
        url('/assets/images/backpic/back-2.png') no-repeat center / cover;
    }

    .hero-cat::before {
      content: "";
      position: absolute;
      width: 500px;
      height: 500px;
      right: -120px;
      top: -100px;
      border-radius: 50%;
      background: radial-gradient(circle, rgba(55, 215, 240, 0.12), transparent 65%);
      pointer-events: none;
    }

    .cat-grid {
      display: grid;
      grid-template-columns: 1.16fr 0.84fr;
      gap: 56px;
      align-items: center;
      position: relative;
      z-index: 1;
    }

    .cat-kicker {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      font-size: 14px;
      color: var(--brand);
      padding: 6px 14px;
      border-radius: 999px;
      border: 1px solid rgba(55, 215, 240, 0.3);
      background: rgba(55, 215, 240, 0.08);
      margin-bottom: 22px;
    }

    .cat-kicker::before {
      content: "";
      width: 6px;
      height: 6px;
      border-radius: 50%;
      background: var(--signal);
      display: inline-block;
      box-shadow: 0 0 8px rgba(245, 196, 90, 0.8);
    }

    .category-hero-title {
      font-size: clamp(2.4rem, 4.6vw, 3.4rem);
      line-height: 1.18;
      font-weight: 800;
      letter-spacing: -0.02em;
      margin-bottom: 20px;
    }

    .category-hero-title span {
      color: var(--brand);
    }

    .hero-desc {
      max-width: 620px;
      color: var(--text-secondary);
      font-size: 16px;
      line-height: 1.9;
      margin-bottom: 32px;
    }

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

    .hero-visual {
      position: relative;
      min-height: 360px;
      border-radius: 20px;
      border: 1px solid rgba(255, 255, 255, 0.1);
      background: linear-gradient(180deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.02));
      padding: 18px;
      box-shadow: var(--shadow-card);
      backdrop-filter: blur(12px);
    }

    .hero-visual::before {
      content: "";
      position: absolute;
      inset: 0;
      border-radius: 20px;
      pointer-events: none;
      background: linear-gradient(180deg, rgba(255, 255, 255, 0.09), transparent 32%);
    }

    .preview-browser {
      position: relative;
      border-radius: 14px;
      height: 100%;
      min-height: 326px;
      overflow: hidden;
      border: 1px solid rgba(255, 255, 255, 0.12);
      display: flex;
      flex-direction: column;
    }

    .browser-bar {
      display: flex;
      align-items: center;
      gap: 6px;
      padding: 10px 12px;
      border-bottom: 1px solid rgba(148, 163, 184, 0.16);
      background: rgba(255, 255, 255, 0.035);
    }

    .browser-dot {
      width: 8px;
      height: 8px;
      border-radius: 50%;
      display: inline-block;
    }

    .browser-body {
      position: relative;
      flex: 1;
      background:
        linear-gradient(180deg, rgba(7, 16, 32, 0.48), rgba(7, 16, 32, 0.72)),
        url('/assets/images/coverpic/cover-3.webp') no-repeat center / cover;
    }

    .visual-status {
      position: absolute;
      left: 14px;
      bottom: 14px;
      right: 14px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 12px 14px;
      border-radius: 14px;
      border: 1px solid rgba(255, 255, 255, 0.14);
      background: rgba(7, 16, 32, 0.72);
      backdrop-filter: blur(14px);
    }

    .status-dot {
      display: inline-block;
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: var(--success);
      box-shadow: 0 0 10px rgba(69, 224, 160, 0.9);
      margin-right: 8px;
    }

    .news-intro-bar {
      border-bottom: 1px solid var(--border-soft);
      background: rgba(11, 23, 48, 0.6);
      padding: 28px 0;
    }

    .news-intro-flex {
      display: flex;
      gap: 32px;
      align-items: flex-start;
    }

    .intro-tag {
      flex: 0 0 auto;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 6px 16px;
      border-radius: 999px;
      font-size: 13px;
      font-weight: 600;
      color: #052630;
      background: linear-gradient(135deg, #52E5FF, #26BDE4);
    }

    .intro-text {
      color: var(--text-secondary);
      font-size: 15px;
      line-height: 1.85;
    }

    @media (max-width: 767px) {
      .news-intro-flex {
        flex-direction: column;
        gap: 12px;
      }
    }

    .section {
      padding: 96px 0;
    }

    @media (max-width: 768px) {
      .section {
        padding: 64px 0;
      }
    }

    .section-head {
      margin-bottom: 44px;
    }

    .section-eyebrow {
      display: inline-block;
      font-size: 14px;
      font-weight: 600;
      color: var(--brand);
      letter-spacing: 0.08em;
      margin-bottom: 10px;
    }

    .section-title {
      font-size: clamp(1.5rem, 3vw, 2.1rem);
      font-weight: 700;
      line-height: 1.3;
      color: #fff;
      margin-bottom: 12px;
    }

    .section-desc {
      color: var(--text-secondary);
      max-width: 720px;
      font-size: 15px;
    }

    .news-wall {
      background: var(--bg-secondary);
    }

    .news-wall-grid {
      display: grid;
      grid-template-columns: 1.38fr 1fr;
      gap: 24px;
      align-items: start;
    }

    .news-left-col,
    .news-right-col {
      display: flex;
      flex-direction: column;
      gap: 24px;
      min-width: 0;
    }

    .glass-card {
      position: relative;
      background: linear-gradient(180deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.025));
      border: 1px solid rgba(255, 255, 255, 0.1);
      border-radius: var(--radius-card);
      overflow: hidden;
      box-shadow: var(--shadow-card);
    }

    .glass-card::before {
      content: "";
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      height: 1px;
      background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
      pointer-events: none;
    }

    .news-card-main {
      position: relative;
      min-height: 660px;
      display: flex;
      align-items: flex-end;
      padding: 28px;
      border-radius: 18px;
      border: 1px solid rgba(255, 255, 255, 0.11);
      background:
        linear-gradient(180deg, rgba(7, 16, 32, 0.24), rgba(7, 16, 32, 0.92)),
        url('/assets/images/coverpic/cover-1.webp') no-repeat center / cover;
      overflow: hidden;
      transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
    }

    .news-card-main:hover {
      transform: translateY(-4px);
      border-color: rgba(55, 215, 240, 0.45);
      box-shadow: 0 22px 60px -20px rgba(0, 0, 0, 0.72), 0 0 0 1px rgba(55, 215, 240, 0.12);
    }

    .main-card-content {
      position: relative;
      z-index: 2;
    }

    .badge {
      display: inline-flex;
      align-items: center;
      gap: 5px;
      padding: 5px 12px;
      border-radius: 999px;
      font-size: 12px;
      font-weight: 500;
      border: 1px solid rgba(148, 163, 184, 0.25);
      color: var(--text-secondary);
      background: rgba(7, 16, 32, 0.5);
      margin-bottom: 12px;
    }

    .badge-light {
      color: var(--text);
      border-color: rgba(55, 215, 240, 0.3);
      background: rgba(55, 215, 240, 0.11);
    }

    .news-card-title {
      font-size: 24px;
      line-height: 1.4;
      font-weight: 700;
      color: #fff;
      margin-bottom: 12px;
      max-width: 720px;
    }

    .news-card-desc {
      color: rgba(225, 235, 249, 0.87);
      font-size: 15px;
      max-width: 720px;
    }

    .news-card-link {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      margin-top: 20px;
      color: var(--brand);
      font-size: 14px;
      font-weight: 600;
    }

    .news-card-link:hover {
      color: #fff;
      gap: 10px;
    }

    .news-card {
      padding: 24px;
    }

    .news-card:hover {
      border-color: rgba(55, 215, 240, 0.38);
      transform: translateY(-3px);
      box-shadow: 0 18px 46px -22px rgba(0, 0, 0, 0.65);
    }

    .news-meta {
      display: flex;
      align-items: center;
      gap: 10px;
      margin: 10px 0 14px;
      font-size: 13px;
      color: var(--text-faint);
    }

    .news-mini-title {
      font-size: 17px;
      line-height: 1.5;
      font-weight: 700;
      color: #fff;
      margin-bottom: 10px;
    }

    .news-mini-desc {
      font-size: 14px;
      line-height: 1.8;
      color: var(--text-secondary);
    }

    .news-photo-card {
      display: flex;
      flex-direction: column;
    }

    .photo-frame {
      min-height: 208px;
      padding: 18px;
      background:
        linear-gradient(180deg, rgba(7, 16, 32, 0.2), rgba(7, 16, 32, 0.42)),
        url('/assets/images/coverpic/cover-5.webp') no-repeat center / cover;
    }

    .photo-frame-lg {
      min-height: 268px;
      display: flex;
      align-items: flex-end;
    }

    .check-list {
      list-style: none;
      padding: 0;
      margin: 10px 0 0;
    }

    .check-list li {
      position: relative;
      padding-left: 22px;
      color: var(--text-secondary);
      font-size: 14px;
      line-height: 2;
    }

    .check-list li::before {
      content: "";
      position: absolute;
      left: 0;
      top: 0.68em;
      width: 12px;
      height: 6px;
      border-left: 2px solid var(--brand);
      border-bottom: 2px solid var(--brand);
      transform: rotate(-45deg);
      border-radius: 1px;
    }

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

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

    .info-tile {
      padding: 28px;
      border-radius: 16px;
      background: linear-gradient(180deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.02));
      border: 1px solid rgba(148, 163, 184, 0.18);
      transition: transform 0.3s ease, border-color 0.3s ease;
      position: relative;
    }

    .info-tile::before {
      content: "";
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      height: 1px;
      background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    }

    .info-tile:hover {
      transform: translateY(-4px);
      border-color: rgba(55, 215, 240, 0.4);
    }

    .info-tile-icon {
      width: 42px;
      height: 42px;
      border-radius: 10px;
      display: flex;
      align-items: center;
      justify-content: center;
      background: rgba(124, 157, 242, 0.13);
      color: var(--assist);
      margin-bottom: 16px;
    }

    .info-tile h3 {
      font-size: 16px;
      font-weight: 700;
      color: #fff;
      margin-bottom: 10px;
    }

    .info-tile p {
      color: var(--text-secondary);
      font-size: 14px;
      line-height: 1.8;
    }

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

    .step-card {
      border-radius: 16px;
      border: 1px solid rgba(148, 163, 184, 0.16);
      padding: 28px;
      background: rgba(255, 255, 255, 0.025);
      position: relative;
    }

    .step-card::before {
      counter-increment: steps;
      content: "0" counter(steps);
      font-size: 36px;
      font-weight: 800;
      color: rgba(55, 215, 240, 0.16);
      line-height: 1;
      display: block;
      margin-bottom: 22px;
      font-family: Inter, sans-serif;
    }

    .step-card h3 {
      color: #fff;
      font-size: 17px;
      font-weight: 700;
      margin-bottom: 10px;
    }

    .step-card p {
      color: var(--text-secondary);
      font-size: 14px;
      line-height: 1.8;
    }

    .faq-section {
      background: var(--bg);
      position: relative;
      overflow: hidden;
    }

    .faq-section::before {
      content: "";
      position: absolute;
      width: 520px;
      height: 520px;
      left: -160px;
      bottom: -120px;
      background: radial-gradient(circle, rgba(124, 157, 242, 0.07), transparent 65%);
      pointer-events: none;
    }

    .faq-list {
      max-width: 1100px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 16px;
    }

    .faq-item {
      border-radius: 16px;
      background: linear-gradient(180deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.02));
      border: 1px solid rgba(148, 163, 184, 0.18);
      overflow: hidden;
      position: relative;
      transition: border-color 0.3s ease;
    }

    .faq-item[open],
    .faq-item:hover {
      border-color: rgba(55, 215, 240, 0.3);
    }

    .faq-summary {
      list-style: none;
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 20px;
      padding: 22px 26px;
      font-size: 16px;
      color: #fff;
      font-weight: 600;
      user-select: none;
    }

    .faq-summary::-webkit-details-marker {
      display: none;
    }

    .faq-icon {
      position: relative;
      flex: 0 0 28px;
      width: 28px;
      height: 28px;
      border-radius: 50%;
      border: 1px solid rgba(55, 215, 240, 0.3);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      transition: transform 0.2s ease;
      color: var(--brand);
    }

    .faq-icon::before,
    .faq-icon::after {
      content: "";
      position: absolute;
      width: 10px;
      height: 1.6px;
      background: var(--brand);
      border-radius: 2px;
    }

    .faq-icon::after {
      transform: rotate(90deg);
    }

    .faq-item[open] .faq-icon {
      transform: rotate(45deg);
      border-color: var(--brand);
    }

    .faq-answer {
      margin: 0;
      padding: 0 26px 24px;
      border-top: 1px dashed rgba(148, 163, 184, 0.22);
      color: var(--text-secondary);
      font-size: 14px;
      line-height: 1.9;
    }

    .faq-answer strong {
      color: #fff;
      font-weight: 600;
    }

    .cta-panel {
      position: relative;
      border-radius: 24px;
      overflow: hidden;
      padding: 64px 48px;
      background:
        linear-gradient(180deg, rgba(7, 16, 32, 0.68), rgba(7, 16, 32, 0.9)),
        url('/assets/images/backpic/back-3.png') no-repeat center / cover;
      border: 1px solid rgba(55, 215, 240, 0.18);
      box-shadow: var(--shadow-card);
      text-align: center;
    }

    .cta-panel::before {
      content: "";
      position: absolute;
      width: 440px;
      height: 440px;
      right: -100px;
      top: -100px;
      background: radial-gradient(circle, rgba(55, 215, 240, 0.12), transparent 65%);
    }

    .cta-title {
      font-size: clamp(1.6rem, 3.4vw, 2.4rem);
      font-weight: 800;
      line-height: 1.35;
      margin-bottom: 14px;
      color: #fff;
    }

    .cta-sub {
      color: var(--text-secondary);
      margin-bottom: 30px;
      max-width: 640px;
      margin-left: auto;
      margin-right: auto;
    }

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

    .float-bar {
      position: fixed;
      bottom: 0;
      left: 0;
      right: 0;
      z-index: 40;
      min-height: 64px;
      background: rgba(7, 16, 32, 0.88);
      backdrop-filter: blur(14px);
      border-top: 1px solid rgba(55, 215, 240, 0.22);
      box-shadow: 0 -8px 24px rgba(0, 0, 0, 0.25);
      transform: translateY(0);
      transition: transform 0.3s ease;
    }

    .float-bar-content {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 24px;
      min-height: 64px;
      padding: 10px 16px;
      max-width: 1100px;
      margin: 0 auto;
    }

    .float-bar-text {
      color: var(--text-secondary);
      font-size: 14px;
      line-height: 1.6;
      white-space: nowrap;
    }

    .float-close {
      display: flex;
      width: 30px;
      height: 30px;
      align-items: center;
      justify-content: center;
      border-radius: 8px;
      color: var(--text-secondary);
      border: 1px solid rgba(148, 163, 184, 0.2);
      background: transparent;
    }

    .float-close:hover {
      color: #fff;
      border-color: rgba(55, 215, 240, 0.45);
    }

    .footer {
      background: #050C1B;
      padding-top: 64px;
      border-top: 1px solid rgba(148, 163, 184, 0.14);
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.6fr 0.8fr 1fr 1.4fr;
      gap: 40px;
      padding-bottom: 44px;
    }

    .footer-heading {
      color: #fff;
      font-size: 15px;
      font-weight: 700;
      margin-bottom: 16px;
      letter-spacing: 0.04em;
    }

    .footer-link {
      color: var(--text-secondary);
      font-size: 14px;
      line-height: 1.8;
    }

    .footer-link:hover {
      color: var(--brand);
      transform: translateX(2px);
    }

    .footer-copy {
      border-top: 1px solid rgba(148, 163, 184, 0.1);
      padding: 20px 0;
      color: var(--text-faint);
      font-size: 13px;
      display: flex;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 8px 20px;
    }

    a:focus-visible,
    button:focus-visible,
    summary:focus-visible {
      outline: 2px solid var(--brand);
      outline-offset: 2px;
      border-radius: 4px;
    }

    .mobile-menu nav a:focus-visible {
      border-radius: 12px;
    }

    @media (max-width: 1023px) {
      .cat-grid {
        grid-template-columns: 1fr;
        gap: 40px;
      }

      .hero-visual {
        min-height: 300px;
      }

      .news-wall-grid {
        grid-template-columns: 1fr;
      }

      .info-tile-grid,
      .steps-grid {
        grid-template-columns: 1fr;
      }

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

    @media (max-width: 640px) {
      .hero-cat {
        padding-top: 128px;
      }

      .category-hero-title {
        font-size: 2rem;
      }

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

      .btn-primary,
      .btn-ghost {
        width: 100%;
      }

      .hero-visual {
        min-height: 260px;
      }

      .news-card-main {
        min-height: 500px;
        padding: 20px;
      }

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

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

      .float-bar-text {
        display: none;
      }

      .cta-panel {
        padding: 44px 20px;
      }

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

      .news-intro-flex {
        flex-direction: column;
      }

      .section-title {
        font-size: 1.5rem;
      }
    }

    @media (min-width: 641px) and (max-width: 767px) {
      .float-bar-text {
        max-width: 260px;
        white-space: normal;
        text-align: right;
      }
    }

/* roulang page: category4 */
:root {
    --background: #071020;
    --background-alt: #0B1730;
    --block-darker: #050C1B;
    --ink: #F1F5FB;
    --text-muted: #A5B4CE;
    --text-faint: #6E7FA0;
    --brand: #37D7F0;
    --brand-deep: #22B4D8;
    --aux: #7C9DF2;
    --signal: #F5C45A;
    --success: #45E0A0;
    --line: rgba(148, 163, 184, 0.18);
    --glass-fill: rgba(255, 255, 255, 0.045);
    --glass-border: rgba(255, 255, 255, 0.1);
    --radius-card: 16px;
    --radius-control: 8px;
    --shadow-card: 0 20px 50px -24px rgba(0, 0, 0, 0.7);
  }

  html {
    scroll-behavior: smooth;
    scroll-padding-top: 110px;
  }

  body {
    background-color: var(--background);
    color: #D9E1EE;
    font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", system-ui, sans-serif;
    font-size: 15px;
    line-height: 1.75;
    -webkit-font-smoothing: antialiased;
  }

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

  body, h1, h2, h3, h4, p, ul, ol, figure, blockquote {
    margin: 0;
    padding: 0;
  }

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

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

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

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

  .container-site {
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
    padding-left: 32px;
    padding-right: 32px;
  }

  .section-block {
    padding: 88px 0;
  }

  .section-block-sm {
    padding: 64px 0;
  }

  .logo-mark {
    width: 36px;
    height: 36px;
    position: relative;
    display: inline-block;
    border-radius: 11px;
    background: linear-gradient(145deg, #37D7F0 0%, #1C8FA8 100%);
    box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.18) inset, 0 0 22px rgba(0, 212, 255, 0.25);
    flex-shrink: 0;
  }

  .logo-mark::before {
    content: "";
    position: absolute;
    left: 8px;
    right: 8px;
    top: 9px;
    bottom: 9px;
    background-color: rgba(7, 16, 32, 0.72);
    border-radius: 6px;
    clip-path: polygon(50% 0%, 100% 0%, 70% 100%, 0 100%, 30% 0);
  }

  .logo-mark::after {
    content: "";
    position: absolute;
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--success);
    right: -2px;
    bottom: -2px;
    box-shadow: 0 0 10px rgba(69, 224, 160, 0.55);
  }

  .brand-text {
    font-weight: 800;
    letter-spacing: 0.02em;
    font-size: 19px;
    color: #F2F6FD;
    white-space: nowrap;
  }

  .site-header {
    position: fixed;
    top: 0;
    left: 0;
    z-index: 60;
    width: 100%;
    height: 72px;
    display: flex;
    align-items: center;
    border-bottom: 1px solid transparent;
    transition: background 0.35s ease, border-color 0.35s ease, box-shadow 0.35s ease;
  }

  .site-header.scrolled {
    background: rgba(7, 16, 32, 0.78);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    border-bottom-color: rgba(148, 163, 184, 0.16);
    box-shadow: 0 18px 44px -30px rgba(0, 0, 0, 0.9);
  }

  .header-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
  }

  .search-pop {
    position: fixed;
    top: 62px;
    right: calc((100vw - 1200px) / 2 + 20px);
    z-index: 59;
    display: flex;
    align-items: center;
    gap: 8px;
    width: 340px;
    padding: 8px 10px 8px 16px;
    border: 1px solid rgba(255, 255, 255, 0.13);
    border-radius: 14px;
    background: rgba(9, 20, 41, 0.98);
    box-shadow: 0 24px 60px -22px rgba(0, 0, 0, 0.9);
    opacity: 0;
    pointer-events: none;
    transform: translateY(-10px);
    transition: all 0.25s ease;
  }

  .search-pop.open {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
  }

  .search-pop input {
    flex: 1;
    background: transparent;
    border: none;
    outline: none;
    color: #F1F5FB;
    font-size: 14px;
  }

  @media (max-width: 1280px) {
    .search-pop { right: 24px; }
  }

  .nav-toggle {
    width: 42px;
    height: 42px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 10px;
    border: 1px solid rgba(255, 255, 255, 0.12);
    background: rgba(255, 255, 255, 0.035);
    transition: background 0.25s ease, border-color 0.25s ease;
  }

  .nav-toggle:hover {
    border-color: rgba(55, 215, 240, 0.35);
  }

  .nav-link {
    color: #A7B5CE;
    font-size: 14px;
    font-weight: 500;
    padding: 10px 13px;
    border-radius: 999px;
    white-space: nowrap;
    position: relative;
    transition: color 0.25s ease, background 0.25s ease;
  }

  .nav-link:hover {
    color: #EAF3FF;
    background: rgba(255, 255, 255, 0.04);
  }

  .nav-link.active {
    color: #F8FBFF;
    font-weight: 600;
    background: rgba(255, 255, 255, 0.065);
  }

  .nav-link.active::after {
    content: "";
    position: absolute;
    left: 50%;
    bottom: -2px;
    width: 20px;
    height: 2px;
    border-radius: 999px;
    background: var(--brand);
    transform: translateX(-50%);
    box-shadow: 0 0 10px rgba(55, 215, 240, 0.8);
  }

  .btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    background: linear-gradient(135deg, #52E5FF, #26BDE4);
    color: #052630;
    font-size: 14px;
    font-weight: 600;
    padding: 10px 22px;
    border-radius: 8px;
    box-shadow: 0 0 18px rgba(0, 228, 255, 0.32), inset 0 1px 0 rgba(255, 255, 255, 0.45);
    transition: box-shadow 0.22s ease, transform 0.22s ease, background 0.22s ease;
    white-space: nowrap;
  }

  .btn-primary:hover {
    box-shadow: 0 0 28px rgba(0, 228, 255, 0.45), inset 0 1px 0 rgba(255, 255, 255, 0.5);
    filter: brightness(1.05);
  }

  .btn-primary:active {
    transform: scale(0.98);
    box-shadow: 0 0 12px rgba(0, 228, 255, 0.3);
  }

  .btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    color: #DCE6F2;
    font-size: 14px;
    font-weight: 500;
    padding: 10px 20px;
    border: 1px solid rgba(148, 163, 184, 0.3);
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.03);
    transition: all 0.22s ease;
  }

  .btn-secondary:hover {
    border-color: rgba(55, 215, 240, 0.5);
    color: #F2F8FF;
    box-shadow: 0 8px 18px -14px rgba(55, 215, 240, 0.35);
  }

  .mobile-drawer {
    position: fixed;
    z-index: 80;
    top: 0;
    right: 0;
    bottom: 0;
    width: min(360px, 100vw);
    background: #0A1324;
    border-left: 1px solid rgba(255, 255, 255, 0.09);
    box-shadow: -30px 0 70px rgba(0, 0, 0, 0.6);
    padding: 24px 22px 32px;
    transform: translateX(102%);
    transition: transform 0.32s cubic-bezier(0.2, 0.8, 0.2, 1);
    display: flex;
    flex-direction: column;
  }

  .mobile-drawer.open {
    transform: translateX(0);
  }

  .drawer-backdrop {
    position: fixed;
    inset: 0;
    z-index: 75;
    background: rgba(4, 8, 18, 0.7);
    backdrop-filter: blur(4px);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
  }

  .drawer-backdrop.open {
    opacity: 1;
    pointer-events: auto;
  }

  .page-banner {
    position: relative;
    min-height: 320px;
    display: flex;
    align-items: flex-end;
    padding: 170px 0 74px;
    overflow: hidden;
  }

  .page-banner .banner-bg {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center 30%;
    opacity: 0.18;
  }

  .page-banner .banner-shade {
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, rgba(7, 16, 32, 0.95) 0%, rgba(7, 16, 32, 0.6) 55%, rgba(11, 23, 48, 0.3) 100%);
  }

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

  .banner-title {
    color: #F2F6FD;
    font-size: clamp(2.1rem, 4.2vw, 3.05rem);
    font-weight: 800;
    line-height: 1.22;
    letter-spacing: 0.01em;
  }

  .breadcrumbs {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    color: #7B8DA8;
    margin-bottom: 20px;
  }

  .breadcrumbs a {
    transition: color 0.2s ease;
  }

  .breadcrumbs a:hover {
    color: #74DCF0;
  }

  .glass-card {
    border-radius: var(--radius-card);
    background-image: linear-gradient(180deg, rgba(255, 255, 255, 0.07), rgba(255, 255, 255, 0.025) 32%, transparent 90%), var(--glass-fill);
    border: 1px solid var(--glass-border);
    box-shadow: var(--shadow-card);
    position: relative;
  }

  .section-kicker {
    display: inline-block;
    color: var(--brand);
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    margin-bottom: 15px;
  }

  .section-title {
    font-size: clamp(1.6rem, 2.8vw, 2.1rem);
    font-weight: 700;
    color: #F4F7FC;
    line-height: 1.35;
  }

  .section-sub {
    color: #8E9DB7;
    font-size: 15px;
    line-height: 1.85;
  }

  .topic-card {
    display: block;
    padding: 28px;
    border-radius: var(--radius-card);
    background: rgba(255, 255, 255, 0.045);
    background-image: linear-gradient(180deg, rgba(255, 255, 255, 0.08), transparent 40%);
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: var(--shadow-card);
    transition: border-color 0.26s ease, transform 0.26s ease, background 0.26s ease;
    height: 100%;
  }

  .topic-card:hover {
    transform: translateY(-4px);
    background-image: linear-gradient(180deg, rgba(255, 255, 255, 0.11), transparent 32%);
    border-color: rgba(55, 215, 240, 0.4);
  }

  .topic-icon {
    width: 46px;
    height: 46px;
    border-radius: 13px;
    background: rgba(55, 215, 240, 0.08);
    border: 1px solid rgba(55, 215, 240, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #7BE4F5;
  }

  .topic-card:nth-child(2n) .topic-icon {
    color: #A5B9F8;
    background: rgba(124, 157, 242, 0.08);
    border-color: rgba(124, 157, 242, 0.22);
  }

  .link-arrow {
    display: inline-flex;
    align-items: center;
    color: #79DBEF;
    font-size: 13px;
    font-weight: 600;
    transition: color 0.22s ease;
  }

  .link-arrow:hover {
    color: #B7F1FA;
  }

  .faq-sticky {
    border-radius: var(--radius-card);
    background: rgba(14, 29, 58, 0.75);
    border: 1px solid rgba(255, 255, 255, 0.09);
    box-shadow: var(--shadow-card);
    padding: 24px;
  }

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

  .quick-list li {
    border-bottom: 1px dashed rgba(148, 163, 184, 0.13);
  }

  .quick-list a {
    display: flex;
    align-items: center;
    gap: 11px;
    padding: 13px 8px;
    font-size: 14px;
    color: #AAB8D0;
    transition: color 0.2s ease, padding 0.2s ease;
  }

  .quick-list a:hover {
    color: #E4F3FF;
    padding-left: 14px;
  }

  .quick-list span {
    font-family: "Inter", sans-serif;
    color: #5D7094;
    font-size: 12px;
  }

  .faq-group {
    margin-bottom: 44px;
  }

  .faq-group-head {
    margin-bottom: 18px;
    display: flex;
    align-items: center;
    gap: 12px;
  }

  .faq-group-head .g-num {
    font-family: "Inter", sans-serif;
    color: var(--signal);
    font-size: 13px;
    background: rgba(245, 196, 90, 0.1);
    border: 1px solid rgba(245, 196, 90, 0.22);
    border-radius: 999px;
    padding: 3px 10px;
  }

  .faq-group-head h2 {
    color: #EAF1FA;
    font-size: 20px;
    font-weight: 700;
  }

  .faq-item {
    border-radius: var(--radius-card);
    background: rgba(255, 255, 255, 0.048);
    border: 1px solid rgba(255, 255, 255, 0.11);
    box-shadow: 0 12px 30px -24px rgba(0, 0, 0, 0.7);
    margin-bottom: 14px;
    transition: border-color 0.24s ease, background 0.24s ease;
    overflow: hidden;
  }

  .faq-item:hover {
    border-color: rgba(55, 215, 240, 0.3);
    background: rgba(255, 255, 255, 0.055);
  }

  .faq-item.open {
    border-color: rgba(55, 215, 240, 0.45);
  }

  .faq-question {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    padding: 22px 26px;
    text-align: left;
    color: #E8EFF8;
    font-size: 16px;
    font-weight: 600;
    line-height: 1.6;
  }

  .faq-question:hover {
    color: #D0F3FB;
  }

  .faq-icon {
    width: 26px;
    height: 26px;
    flex-shrink: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(148, 163, 184, 0.25);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #A9DDE9;
    font-size: 16px;
    font-weight: 400;
    transition: transform 0.3s ease, background 0.3s ease, border-color 0.3s ease, color 0.3s ease;
  }

  .faq-item.open .faq-icon {
    transform: rotate(45deg);
    background: rgba(55, 215, 240, 0.14);
    border-color: rgba(55, 215, 240, 0.5);
    color: #91EDFC;
  }

  .faq-body {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.45s ease;
  }

  .faq-answer {
    border-top: 1px dashed rgba(148, 163, 184, 0.22);
    margin: 0 26px 24px;
    padding: 18px 2px 3px;
    color: #A6B6CF;
    font-size: 15px;
    line-height: 1.85;
  }

  .faq-answer strong {
    color: #C8D4E6;
    font-weight: 600;
  }

  .badge-soft {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    border-radius: 999px;
    padding: 5px 12px;
    background: rgba(245, 196, 90, 0.08);
    border: 1px solid rgba(245, 196, 90, 0.2);
    color: #F0CB7B;
    font-size: 12px;
    font-weight: 500;
  }

  .cta-help-panel {
    position: relative;
    border-radius: 24px;
    padding: 44px;
    overflow: hidden;
    background: #07121F;
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 30px 70px -35px rgba(0, 0, 0, 0.7);
  }

  .cta-help-panel .cta-bg {
    position: absolute;
    inset: 0;
    background: url("/assets/images/backpic/back-2.png") center center / cover no-repeat;
    opacity: 0.12;
    pointer-events: none;
  }

  .cta-help-panel .cta-shade {
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, rgba(5, 12, 27, 0.89), rgba(5, 16, 34, 0.68), transparent 80%);
    pointer-events: none;
  }

  .cta-help-panel > * {
    position: relative;
    z-index: 2;
  }

  .shadow-img {
    border-radius: 18px;
    box-shadow: 0 20px 45px -22px rgba(0, 0, 0, 0.84);
  }

  .footer {
    background: #040B18;
    border-top: 1px solid rgba(148, 163, 184, 0.14);
    padding: 62px 0 30px;
  }

  .footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.3fr;
    gap: 40px;
  }

  .footer-heading {
    color: #E8F0FA;
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 18px;
  }

  .footer-link {
    color: #8C9CB3;
    font-size: 14px;
    transition: color 0.2s ease;
  }

  .footer-link:hover {
    color: #37D7F0;
  }

  .footer-copy {
    margin-top: 42px;
    padding-top: 24px;
    border-top: 1px solid rgba(148, 163, 184, 0.13);
    display: flex;
    justify-content: space-between;
    gap: 18px;
    flex-wrap: wrap;
    color: #5E6C85;
    font-size: 13px;
  }

  @media (max-width: 1000px) {
    .footer-grid {
      grid-template-columns: 1fr 1fr;
      gap: 32px;
    }
  }

  @media (max-width: 640px) {
    .footer-grid {
      grid-template-columns: 1fr;
    }

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

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

    .search-pop {
      width: 260px;
      right: 14px;
    }

    .faclaimed .footer span {
      font-size: 12px;
    }
  }