/* roulang page: index */
:root {
    --bg: #060B1F;
    --surface: #0D1530;
    --surface-2: #111D3D;
    --primary: #2FD8FF;
    --green: #1EE0A2;
    --amber: #FFA83E;
    --rose: #FF5D6C;
    --text: #F0F5FF;
    --body-text: #C5D1EB;
    --muted: #8698BC;
    --weak: #5F7096;
    --line: rgba(255, 255, 255, 0.08);
    --glass: rgba(148, 178, 255, 0.06);
    --radius-xl: 20px;
    --radius-lg: 16px;
    --radius-md: 14px;
    --radius-sm: 10px;
    --shadow: 0 18px 40px rgba(0, 0, 0, 0.25);
    --font: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei UI", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  }

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

  html {
    scroll-behavior: smooth;
  }

  body {
    font-family: var(--font);
    background: var(--bg);
    color: var(--text);
    line-height: 1.75;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
    overflow-x: hidden;
  }

  body::before {
    content: "";
    position: fixed;
    inset: 0;
    z-index: -1;
    pointer-events: none;
    background:
      radial-gradient(640px 320px at 8% -6%, rgba(47, 216, 255, 0.10), transparent 60%),
      radial-gradient(800px 420px at 98% 12%, rgba(30, 224, 162, 0.07), transparent 55%),
      radial-gradient(900px 600px at 70% 88%, rgba(47, 216, 255, 0.04), transparent 60%);
  }

  h1,
  h2,
  h3,
  h4 {
    line-height: 1.3;
    letter-spacing: -0.01em;
    font-weight: 800;
    color: var(--text);
  }

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

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

  button,
  input,
  textarea,
  select {
    font-family: inherit;
    font-size: 1rem;
  }

  a:focus-visible,
  button:focus-visible,
  input:focus-visible,
  textarea:focus-visible,
  summary:focus-visible {
    outline: 3px solid rgba(47, 216, 255, 0.32);
    outline-offset: 3px;
    border-radius: 6px;
  }

  .container {
    width: 100%;
    max-width: 1280px;
    margin-left: auto;
    margin-right: auto;
    padding-left: 2rem;
    padding-right: 2rem;
  }

  .section {
    padding: 92px 0;
  }

  .section-head {
    max-width: 760px;
    margin-bottom: 44px;
  }

  .section-head h2 {
    font-size: clamp(1.65rem, 2.6vw, 2.25rem);
    margin-bottom: 14px;
  }

  .section-head p {
    color: var(--muted);
    font-size: 1.05rem;
  }

  .section-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--primary);
    background: rgba(47, 216, 255, 0.1);
    border: 1px solid rgba(47, 216, 255, 0.16);
    padding: 6px 12px;
    border-radius: 999px;
    margin-bottom: 18px;
  }

  .text-grad {
    background: linear-gradient(100deg, var(--primary), var(--green));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
  }

  .glass {
    background: var(--glass);
    border: 1px solid var(--line);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow);
  }

  /* Header */
  .site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 70;
    height: 72px;
    display: flex;
    align-items: center;
    background: rgba(6, 11, 31, 0.74);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  }

  .header-inner {
    display: flex;
    align-items: center;
    gap: 20px;
    width: 100%;
  }

  .brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
    margin-right: auto;
  }

  .brand-logo {
    width: 38px;
    height: 38px;
    display: grid;
    place-items: center;
    border-radius: 12px;
    font-weight: 900;
    font-size: 1.3rem;
    color: #04121b;
    background: linear-gradient(135deg, var(--primary), #7CE0C6);
    box-shadow: 0 0 18px rgba(47, 216, 255, 0.32), inset 0 1px 0 rgba(255, 255, 255, 0.4);
  }

  .brand-text {
    font-size: 1.04rem;
    font-weight: 900;
    color: var(--text);
    letter-spacing: 0.01em;
    white-space: nowrap;
  }

  .nav-links {
    display: flex;
    align-items: center;
    gap: 26px;
  }

  .nav-link {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--muted);
    transition: color 0.2s ease;
    white-space: nowrap;
  }

  .nav-link:hover {
    color: var(--text);
  }

  .nav-link.active {
    color: var(--primary);
  }

  .nav-tools {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-left: auto;
  }

  .nav-search {
    position: relative;
    width: 182px;
  }

  .nav-search svg {
    position: absolute;
    left: 11px;
    top: 50%;
    transform: translateY(-50%);
    width: 15px;
    height: 15px;
    color: var(--weak);
    pointer-events: none;
  }

  .nav-search input {
    width: 100%;
    height: 38px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
    padding: 0 14px 0 34px;
    color: var(--text);
    font-size: 0.88rem;
    outline: none;
    transition: border-color 0.25s ease, background 0.25s ease;
  }

  .nav-search input::placeholder {
    color: var(--weak);
  }

  .nav-search input:focus {
    border-color: rgba(47, 216, 255, 0.5);
    background: rgba(47, 216, 255, 0.06);
  }

  .header-link {
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--muted);
    padding: 8px 10px;
    transition: color 0.2s ease;
  }

  .header-link:hover {
    color: var(--text);
  }

  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-height: 44px;
    padding: 0 20px;
    border-radius: 999px;
    font-weight: 700;
    font-size: 0.93rem;
    line-height: 1;
    border: 1px solid transparent;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease, border-color 0.2s ease;
    white-space: nowrap;
  }

  .btn-primary {
    color: #051018;
    background: linear-gradient(135deg, var(--primary), #35E3A7);
    box-shadow: 0 8px 26px rgba(47, 216, 255, 0.22);
  }

  .btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 30px rgba(47, 216, 255, 0.32);
    filter: brightness(1.06);
  }

  .btn-primary:active {
    transform: translateY(0);
  }

  .btn-ghost {
    background: rgba(255, 255, 255, 0.04);
    border-color: rgba(255, 255, 255, 0.14);
    color: var(--text);
  }

  .btn-ghost:hover {
    border-color: rgba(47, 216, 255, 0.55);
    background: rgba(47, 216, 255, 0.08);
    transform: translateY(-2px);
  }

  .btn-ghost:active {
    transform: translateY(0);
  }

  .btn-header {
    min-height: 38px;
    padding: 0 18px;
    font-size: 0.88rem;
  }

  .mobile-toggle {
    display: none;
    width: 44px;
    height: 44px;
    align-items: center;
    justify-content: center;
    border-radius: 10px;
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.08);
    cursor: pointer;
  }

  .mobile-toggle svg {
    width: 20px;
    height: 20px;
    color: var(--text);
  }

  .mobile-menu-panel {
    display: none;
    background: rgba(6, 11, 31, 0.97);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    padding: 14px 20px 24px;
  }

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

  .mobile-menu-label {
    color: var(--weak);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    padding: 8px 4px 4px;
  }

  .mobile-nav-link {
    display: block;
    font-weight: 700;
    color: var(--muted);
    padding: 12px 4px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  }

  .mobile-nav-link.active {
    color: var(--primary);
  }

  .mobile-cta {
    display: flex;
    margin-top: 16px;
    background: rgba(47, 216, 255, 0.12);
    border: 1px solid rgba(47, 216, 255, 0.2);
    border-radius: 14px;
    color: var(--primary);
    font-weight: 700;
    justify-content: center;
    padding: 13px 12px;
  }

  /* Hero */
  .hero {
    position: relative;
    padding: 150px 0 84px;
    background-image:
      linear-gradient(180deg, rgba(6, 11, 31, 0.80) 0%, rgba(6, 11, 31, 0.94) 100%),
      url('/assets/images/backpic/back-1.png');
    background-size: cover;
    background-position: center;
    overflow: hidden;
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
  }

  .hero::after {
    content: '';
    position: absolute;
    inset: 0;
    background:
      linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px),
      linear-gradient(90deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px);
    background-size: 44px 44px;
    mask-image: radial-gradient(circle at 35% 35%, black, transparent 70%);
    pointer-events: none;
  }

  .hero-inner {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: minmax(0, 1.15fr) minmax(320px, 0.85fr);
    gap: 48px;
    align-items: center;
  }

  .hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--body-text);
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 999px;
    padding: 7px 14px;
    margin-bottom: 22px;
  }

  .pulse-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--green);
    box-shadow: 0 0 0 0 rgba(30, 224, 162, 0.6);
    animation: pulse 1.8s infinite;
  }

  @keyframes pulse {
    0% {
      box-shadow: 0 0 0 0 rgba(30, 224, 162, 0.55);
    }
    70% {
      box-shadow: 0 0 0 9px rgba(30, 224, 162, 0);
    }
    100% {
      box-shadow: 0 0 0 0 rgba(30, 224, 162, 0);
    }
  }

  .hero h1 {
    font-size: clamp(2.05rem, 3.8vw, 3.1rem);
    font-weight: 900;
    letter-spacing: -0.02em;
    max-width: 100%;
    margin-bottom: 20px;
    text-shadow: 0 4px 30px rgba(0, 0, 0, 0.22);
  }

  .hero-lead {
    font-size: 1.08rem;
    color: var(--muted);
    max-width: 32rem;
    line-height: 1.8;
    margin-bottom: 28px;
  }

  .hero-search-form {
    display: flex;
    align-items: center;
    max-width: 600px;
    background: rgba(6, 11, 31, 0.5);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 999px;
    padding: 6px;
    margin-bottom: 16px;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
  }

  .hero-search-form:focus-within {
    border-color: rgba(47, 216, 255, 0.55);
    box-shadow: 0 0 0 4px rgba(47, 216, 255, 0.14);
  }

  .hero-search-form svg {
    width: 18px;
    height: 18px;
    margin-left: 14px;
    color: var(--weak);
    flex-shrink: 0;
  }

  .hero-search-form input {
    flex: 1;
    min-width: 0;
    padding: 0 10px;
    background: transparent;
    border: 0;
    outline: none;
    color: var(--text);
    font-size: 0.95rem;
    height: 44px;
  }

  .hero-search-form input::placeholder {
    color: var(--weak);
  }

  .search-submit {
    height: 44px;
    border: 0;
    background: linear-gradient(135deg, var(--primary), var(--green));
    color: #051018;
    font-weight: 700;
    font-size: 0.9rem;
    padding: 0 22px;
    border-radius: 999px;
    cursor: pointer;
    transition: filter 0.2s ease, box-shadow 0.2s ease;
    white-space: nowrap;
  }

  .search-submit:hover {
    filter: brightness(1.06);
    box-shadow: 0 6px 20px rgba(47, 216, 255, 0.3);
  }

  .search-hint {
    color: var(--weak);
    font-size: 0.85rem;
    min-height: 1.6em;
  }

  .hero-ctas {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 26px;
  }

  .hero-status {
    padding: 26px;
  }

  .status-title {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 22px;
  }

  .status-title strong {
    font-size: 1.05rem;
    font-weight: 800;
  }

  .status-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: rgba(30, 224, 162, 0.12);
    border: 1px solid rgba(30, 224, 162, 0.18);
    color: var(--green);
    font-size: 0.78rem;
    font-weight: 700;
    padding: 4px 10px;
    border-radius: 999px;
  }

  .status-list {
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    padding-top: 6px;
  }

  .status-list-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    padding: 13px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
    font-size: 0.9rem;
  }

  .status-list-row span:first-child {
    color: var(--muted);
  }

  .status-list-row strong {
    color: var(--text);
    font-variant-numeric: tabular-nums;
  }

  .status-list-row .active-value {
    color: var(--green);
  }

  .status-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    min-height: 44px;
    margin-top: 18px;
    background: rgba(47, 216, 255, 0.1);
    border: 1px solid rgba(47, 216, 255, 0.18);
    color: var(--primary);
    font-size: 0.92rem;
    font-weight: 700;
    border-radius: 999px;
    transition: background 0.2s ease, transform 0.2s ease;
  }

  .status-link:hover {
    background: rgba(47, 216, 255, 0.18);
    transform: translateY(-1px);
  }

  /* Stats band */
  .stats-strip {
    position: relative;
    z-index: 3;
    margin-top: -46px;
  }

  .stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
  }

  .stat-card {
    padding: 24px 22px;
    border-radius: var(--radius-lg);
    background: var(--surface);
    border: 1px solid rgba(255, 255, 255, 0.07);
    box-shadow: var(--shadow);
  }

  .stat-count {
    display: block;
    font-size: 1.9rem;
    font-weight: 900;
    letter-spacing: -0.02em;
    font-variant-numeric: tabular-nums;
    color: var(--text);
    line-height: 1.2;
    margin-bottom: 6px;
  }

  .stat-desc {
    color: var(--muted);
    font-size: 0.88rem;
  }

  .stat-card .dot {
    width: 8px;
    height: 8px;
    border-radius: 999px;
    display: inline-block;
    margin-right: 6px;
  }

  .dot-green {
    background: var(--green);
    box-shadow: 0 0 10px rgba(30, 224, 162, 0.5);
  }

  .dot-cyan {
    background: var(--primary);
    box-shadow: 0 0 10px rgba(47, 216, 255, 0.5);
  }

  /* service section / matrix */
  .matrix-layout {
    display: grid;
    grid-template-columns: minmax(0, 1.6fr) minmax(280px, 0.75fr);
    gap: 24px;
  }

  .matrix-card {
    padding: 18px;
    border-radius: var(--radius-lg);
    background: rgba(17, 29, 61, 0.55);
    border: 1px solid rgba(255, 255, 255, 0.06);
    box-shadow: 0 14px 30px rgba(0, 0, 0, 0.16);
  }

  .matrix-item-head {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 16px;
    align-items: center;
    padding: 18px 12px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.045);
  }

  .matrix-item-head:last-of-type {
    border-bottom: 0;
  }

  .matrix-title-row {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
  }

  .matrix-name {
    font-weight: 800;
    font-size: 1.02rem;
    color: var(--text);
  }

  .status-dot {
    width: 8px;
    height: 8px;
    border-radius: 999px;
    display: inline-block;
  }

  .status-online {
    background: var(--green);
  }

  .status-warn {
    background: var(--amber);
  }

  .status-refresh {
    background: var(--primary);
  }

  .tag {
    display: inline-flex;
    align-items: center;
    font-size: 0.72rem;
    font-weight: 700;
    padding: 3px 9px;
    border-radius: 999px;
    letter-spacing: 0;
  }

  .tag-rec {
    background: rgba(47, 216, 255, 0.12);
    color: var(--primary);
  }

  .tag-safe {
    background: rgba(30, 224, 162, 0.12);
    color: var(--green);
  }

  .matrix-meta {
    color: var(--muted);
    font-size: 0.86rem;
    margin-top: 4px;
  }

  .matrix-meta strong {
    color: var(--muted);
    font-weight: 500;
  }

  .matrix-action {
    display: flex;
    gap: 8px;
    align-items: center;
  }

  .row-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 36px;
    padding: 0 14px;
    border-radius: 999px;
    border: 1px solid rgba(255, 255, 255, 0.12);
    background: rgba(255, 255, 255, 0.04);
    color: var(--body-text);
    font-size: 0.85rem;
    font-weight: 700;
    cursor: pointer;
    transition: border-color 0.2s ease, background 0.2s ease, color 0.2s ease;
    white-space: nowrap;
  }

  .row-btn:hover {
    border-color: rgba(47, 216, 255, 0.5);
    background: rgba(47, 216, 255, 0.08);
    color: var(--primary);
  }

  .cat-nav-grid {
    display: grid;
    gap: 14px;
  }

  .cat-nav-card {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 18px;
    border-radius: var(--radius-lg);
    background: rgba(255, 255, 255, 0.035);
    border: 1px solid rgba(255, 255, 255, 0.06);
    transition: border-color 0.25s ease, transform 0.25s ease, background 0.25s ease;
  }

  .cat-nav-card:hover {
    border-color: rgba(47, 216, 255, 0.4);
    background: rgba(47, 216, 255, 0.05);
    transform: translateY(-2px);
  }

  .cat-icon {
    width: 42px;
    height: 42px;
    border-radius: 14px;
    display: grid;
    place-items: center;
    font-weight: 900;
    color: var(--primary);
    background: rgba(47, 216, 255, 0.1);
    border: 1px solid rgba(47, 216, 255, 0.15);
    flex-shrink: 0;
  }

  .cat-nav-card small {
    display: block;
    color: var(--weak);
    font-size: 0.78rem;
    line-height: 1.4;
    margin-top: 3px;
  }

  .cat-nav-card span {
    font-weight: 800;
  }

  .cat-arrow {
    margin-left: auto;
    color: var(--weak);
    font-size: 1.1rem;
    transition: color 0.2s ease, transform 0.2s ease;
  }

  .cat-nav-card:hover .cat-arrow {
    color: var(--primary);
    transform: translateX(4px);
  }

  /* comparison */
  .compare-layout {
    display: grid;
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.35fr);
    gap: 24px;
    align-items: stretch;
  }

  .recommend-card {
    padding: 28px;
    border-radius: var(--radius-xl);
    background: linear-gradient(150deg, rgba(47, 216, 255, 0.10), rgba(17, 29, 61, 0.45) 40%);
    border: 1px solid rgba(47, 216, 255, 0.18);
    box-shadow: var(--shadow);
    display: flex;
    flex-direction: column;
  }

  .recommend-label {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.8rem;
    font-weight: 800;
    color: var(--green);
    background: rgba(30, 224, 162, 0.1);
    border: 1px solid rgba(30, 224, 162, 0.2);
    padding: 5px 12px;
    border-radius: 999px;
    align-self: flex-start;
  }

  .recommend-card h3 {
    font-size: 1.5rem;
    font-weight: 900;
    margin: 22px 0 12px;
  }

  .recommend-card p {
    color: var(--muted);
    line-height: 1.8;
  }

  .recommend-list {
    list-style: none;
    margin: 20px 0 26px;
  }

  .recommend-list li {
    display: flex;
    gap: 8px;
    color: var(--body-text);
    font-size: 0.94rem;
    padding: 6px 0;
  }

  .recommend-list li::before {
    content: '';
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--primary);
    margin-top: 12px;
    flex-shrink: 0;
  }

  .compare-table-card {
    padding: 26px;
    border-radius: var(--radius-xl);
    background: rgba(13, 21, 48, 0.45);
    border: 1px solid rgba(255, 255, 255, 0.06);
    box-shadow: var(--shadow);
    overflow: hidden;
  }

  .compare-table-card .table-scroll {
    overflow-x: auto;
  }

  .compare-table-card h3 {
    font-size: 1.25rem;
    margin-bottom: 18px;
    color: var(--text);
  }

  table.compare {
    width: 100%;
    min-width: 620px;
    border-collapse: collapse;
    font-size: 0.92rem;
  }

  table.compare th,
  table.compare td {
    text-align: left;
    padding: 14px 12px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    color: var(--body-text);
  }

  table.compare th {
    font-size: 0.85rem;
    color: var(--weak);
    font-weight: 700;
    background: rgba(255, 255, 255, 0.02);
    white-space: nowrap;
  }

  table.compare td:first-child {
    font-weight: 700;
    color: var(--text);
  }

  table.compare .rec-td {
    color: var(--primary);
  }

  table.compare tr:hover td {
    background: rgba(47, 216, 255, 0.025);
  }

  .half-star {
    color: var(--weak);
  }

  /* guidance / step */
  .guide-layout {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 22px;
  }

  .guide-card {
    border-radius: var(--radius-xl);
    overflow: hidden;
    background: var(--surface);
    border: 1px solid rgba(255, 255, 255, 0.06);
    box-shadow: var(--shadow);
    transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
  }

  .guide-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 24px 46px rgba(0, 0, 0, 0.28);
    border-color: rgba(47, 216, 255, 0.2);
  }

  .guide-card figure {
    aspect-ratio: 16 / 9;
    background: #0D1530;
  }

  .guide-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
  }

  .guide-card-body {
    padding: 22px;
  }

  .guide-step {
    font-size: 0.78rem;
    font-weight: 900;
    letter-spacing: 0.1em;
    color: var(--primary);
    text-transform: uppercase;
    margin-bottom: 6px;
  }

  .guide-card-body h3 {
    font-size: 1.15rem;
    margin-bottom: 8px;
  }

  .guide-card-body p {
    color: var(--muted);
    font-size: 0.94rem;
  }

  /* CMS news section */
  .news-section {
    background: rgba(13, 21, 48, 0.28);
    border-top: 1px solid rgba(255, 255, 255, 0.04);
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
  }

  .news-list {
    background: rgba(255, 255, 255, 0.025);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: var(--radius-xl);
    padding: 6px 22px;
    box-shadow: var(--shadow);
  }

  .news-row {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 8px 24px;
    padding: 22px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  }

  .news-row:last-child {
    border-bottom: 0;
  }

  .news-row-top {
    grid-column: 1 / -1;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    flex-wrap: wrap;
  }

  .news-badge {
    display: inline-flex;
    font-size: 0.76rem;
    font-weight: 800;
    color: var(--primary);
    background: rgba(47, 216, 255, 0.1);
    padding: 3px 10px;
    border-radius: 999px;
    letter-spacing: 0.02em;
  }

  .news-date {
    color: var(--weak);
    font-size: 0.84rem;
    font-variant-numeric: tabular-nums;
  }

  .news-title-link {
    font-size: 1.06rem;
    font-weight: 800;
    color: var(--text);
    transition: color 0.2s ease;
    line-height: 1.45;
  }

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

  .news-excerpt {
    grid-column: 1 / -1;
    color: var(--muted);
    font-size: 0.92rem;
    line-height: 1.75;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }

  .news-more {
    grid-column: 1 / -1;
    font-size: 0.86rem;
    font-weight: 700;
    color: var(--primary);
  }

  .news-empty {
    padding: 38px 10px;
    text-align: center;
    color: var(--muted);
  }

  .empty-icon {
    width: 46px;
    height: 46px;
    margin: 0 auto 12px;
    display: grid;
    place-items: center;
    border-radius: 16px;
    background: rgba(47, 216, 255, 0.08);
    color: var(--primary);
    font-size: 1.4rem;
  }

  /* FAQ */
  .faq-wrap {
    max-width: 840px;
    margin: 0 auto;
  }

  .faq-item {
    margin-bottom: 14px;
    background: rgba(255, 255, 255, 0.028);
    border: 1px solid rgba(255, 255, 255, 0.07);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: border-color 0.25s ease, background 0.25s ease;
  }

  .faq-item[open] {
    background: rgba(47, 216, 255, 0.045);
    border-color: rgba(47, 216, 255, 0.18);
  }

  .faq-item summary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    list-style: none;
    cursor: pointer;
    padding: 17px 22px;
    font-weight: 700;
    font-size: 1.02rem;
    color: var(--text);
    transition: color 0.2s ease;
  }

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

  .faq-item summary::after {
    content: '+';
    font-size: 1.6rem;
    font-weight: 300;
    color: var(--primary);
    line-height: 1;
    transform: rotate(0);
    transition: transform 0.25s ease;
    width: 20px;
    text-align: right;
    flex-shrink: 0;
  }

  .faq-item[open] summary::after {
    transform: rotate(45deg);
  }

  .faq-answer {
    padding: 0 22px 20px;
    color: var(--muted);
    line-height: 1.8;
  }

  /* CTA / form */
  .cta-panel {
    border-radius: 28px;
    background:
      linear-gradient(120deg, rgba(47, 216, 255, 0.08), rgba(30, 224, 162, 0.03)),
      var(--surface);
    border: 1px solid rgba(255, 255, 255, 0.08);
    padding: 36px;
    box-shadow: var(--shadow);
    display: grid;
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
    gap: 40px;
    align-items: center;
  }

  .cta-left h2 {
    font-size: 1.9rem;
    margin-bottom: 16px;
  }

  .cta-left p {
    color: var(--muted);
    line-height: 1.85;
  }

  .cta-note {
    margin-top: 18px;
    border-left: 3px solid var(--primary);
    padding: 6px 0 6px 13px;
    color: var(--body-text);
    font-size: 0.95rem;
  }

  .feedback-form {
    display: grid;
    gap: 16px;
    background: rgba(6, 11, 31, 0.34);
    border: 1px solid rgba(255, 255, 255, 0.07);
    border-radius: var(--radius-lg);
    padding: 22px;
  }

  .form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px;
  }

  .form-field {
    display: flex;
    flex-direction: column;
    gap: 6px;
  }

  .form-field label {
    font-size: 0.86rem;
    font-weight: 700;
    color: var(--body-text);
  }

  .form-field input,
  .form-field select,
  .form-field textarea {
    min-height: 44px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.11);
    border-radius: var(--radius-sm);
    padding: 10px 13px;
    color: var(--text);
    outline: none;
    font-size: 0.92rem;
    transition: border-color 0.25s ease, background 0.25s ease;
  }

  .form-field input:focus,
  .form-field select:focus,
  .form-field textarea:focus {
    border-color: rgba(47, 216, 255, 0.5);
    background: rgba(47, 216, 255, 0.05);
  }

  .form-field textarea {
    min-height: 92px;
    resize: vertical;
  }

  .form-select-wrap {
    position: relative;
  }

  .form-msg {
    grid-column: 1 / -1;
    min-height: 1.4em;
    font-size: 0.87rem;
    color: var(--green);
  }

  .form-msg.error {
    color: var(--rose);
  }

  .form-btn-wrap {
    grid-column: 1 / -1;
  }

  /* Footer */
  .site-footer {
    background: #04081a;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    padding: 62px 0 34px;
    margin-top: 80px;
  }

  .footer-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.2fr) minmax(200px, 0.6fr) minmax(260px, 0.9fr);
    gap: 40px;
    margin-bottom: 38px;
  }

  .footer-brand p {
    margin-top: 14px;
    color: var(--muted);
    font-size: 0.92rem;
    max-width: 360px;
  }

  .footer h4 {
    color: var(--text);
    font-size: 0.95rem;
    margin-bottom: 16px;
  }

  .footer-links {
    display: grid;
    gap: 8px;
  }

  .footer-links a {
    color: var(--muted);
    font-size: 0.9rem;
    transition: color 0.2s ease;
  }

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

  .footer-safe {
    background: rgba(47, 216, 255, 0.035);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: var(--radius-lg);
    padding: 16px;
    color: var(--muted);
    font-size: 0.88rem;
    line-height: 1.75;
  }

  .footer-safe strong {
    color: var(--body-text);
  }

  .footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    padding-top: 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    flex-wrap: wrap;
    color: var(--weak);
    font-size: 0.86rem;
  }

  .footer-bottom a {
    color: var(--muted);
    transition: color 0.2s ease;
  }

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

  /* Responsive adjustments */
  @media (max-width: 1024px) {
    .header-inner {
      gap: 12px;
    }

    .nav-links {
      display: none;
    }

    .mobile-toggle {
      display: flex;
    }

    .nav-search {
      display: none;
    }

    .hero-inner {
      grid-template-columns: 1fr;
      gap: 34px;
    }

    .hero {
      padding-top: 130px;
    }

    .hero-status {
      max-width: 640px;
    }

    .matrix-layout {
      grid-template-columns: 1fr;
    }

    .compare-layout {
      grid-template-columns: 1fr;
    }

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

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

    .cta-panel {
      grid-template-columns: 1fr;
      padding: 28px;
    }

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

  @media (max-width: 640px) {
    .container {
      padding-left: 20px;
      padding-right: 20px;
    }

    .site-header {
      height: 60px;
    }

    .brand-text {
      font-size: 0.96rem;
      letter-spacing: 0;
    }

    .brand-logo {
      width: 34px;
      height: 34px;
      font-size: 1.15rem;
    }

    .btn-header,
    .header-link {
      display: none;
    }

    .mobile-toggle {
      width: 38px;
      height: 38px;
    }

    .hero {
      padding: 110px 0 60px;
    }

    .hero h1 {
      font-size: 1.85rem;
    }

    .stats-grid {
      grid-template-columns: 1fr 1fr;
      gap: 12px;
    }

    .stat-count {
      font-size: 1.35rem;
    }

    .stat-card {
      padding: 18px 16px;
    }

    .section {
      padding: 60px 0;
    }

    .matrix-card,
    .compare-table-card,
    .recommend-card {
      padding: 18px;
    }

    .matrix-content {
      padding: 0 4px;
    }

    .matrix-item-head {
      grid-template-columns: 1fr;
    }

    .guide-layout {
      grid-template-columns: 1fr;
    }

    .guide-card-body {
      padding: 18px;
    }

    .news-list {
      padding: 0 16px;
    }

    .cta-panel {
      padding: 20px;
      border-radius: 22px;
    }

    .cta-left h2 {
      font-size: 1.5rem;
    }

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

    .form-btn-wrap,
    .form-msg {
      grid-column: 1 / 2;
    }

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

    .hero-search-form {
      border-radius: 18px;
      flex-direction: column;
      align-items: stretch;
      gap: 8px;
      padding: 10px;
    }

    .hero-search-form svg {
      display: none;
    }

    .hero-search-form input {
      border-radius: 10px;
      background: rgba(255, 255, 255, 0.03);
      padding: 0 12px;
    }

    .search-submit {
      border-radius: 12px;
      width: 100%;
      justify-content: center;
    }

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

  @media (max-width: 420px) {
    .brand-text {
      font-size: 1rem;
    }

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

    .matrix-title-row {
      flex-direction: column;
      align-items: flex-start;
    }
  }

/* roulang page: article */
:root {
  --bg: #060B1F;
  --surface-1: #0D1530;
  --surface-2: #111D3D;
  --primary: #2FD8FF;
  --success: #1EE0A2;
  --warn: #FFA83E;
  --danger: #FF5D6C;
  --text-title: #F0F5FF;
  --text-body: #C5D1EB;
  --text-sub: #8698BC;
  --text-dim: #5F7096;
  --border: rgba(255, 255, 255, 0.08);
  --border-light: rgba(255, 255, 255, 0.12);
  --glass: rgba(148, 178, 255, 0.06);
  --radius-xl: 20px;
  --radius-lg: 16px;
  --radius-md: 14px;
  --shadow: 0 18px 40px rgba(0, 0, 0, 0.25);
  --font-cn: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei UI", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-cn);
  background: var(--bg);
  color: var(--text-body);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button, input, textarea { font-family: inherit; }
h1, h2, h3, h4, h5 { color: var(--text-title); margin: 0; font-weight: 800; letter-spacing: -0.01em; }
p { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }

.container {
  width: min(1280px, calc(100% - 64px));
  margin-inline: auto;
}
@media (max-width: 768px) {
  .container { width: calc(100% - 40px); }
}

/* ===== Header / Navigation ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  height: 72px;
  background: rgba(6, 11, 31, 0.74);
  -webkit-backdrop-filter: blur(18px);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}
.site-header .container {
  height: 72px;
  display: flex;
  align-items: center;
  gap: 24px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  white-space: nowrap;
}
.brand-logo {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: linear-gradient(135deg, #2FD8FF 0%, #1EE0A2 100%);
  color: #060B1F;
  font-weight: 900;
  font-size: 20px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 22px rgba(47, 216, 255, 0.35);
}
.brand-text {
  font-size: 18px;
  font-weight: 800;
  color: var(--text-title);
  letter-spacing: 0;
}
.nav-links { display: flex; align-items: center; gap: 6px; }
.nav-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 38px;
  padding: 0 14px;
  border-radius: 10px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-sub);
  transition: all 0.2s ease;
}
.nav-link:hover { color: var(--text-title); background: rgba(255, 255, 255, 0.05); }
.nav-link.active {
  color: var(--primary);
  background: rgba(47, 216, 255, 0.1);
  box-shadow: inset 0 0 0 1px rgba(47, 216, 255, 0.18);
}
.nav-right { margin-left: auto; display: flex; align-items: center; gap: 12px; }
.search-box {
  height: 40px;
  width: 210px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0 14px;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: all 0.25s ease;
}
.search-box i { color: var(--text-dim); font-size: 14px; }
.search-box input {
  width: 100%;
  background: transparent;
  border: 0;
  outline: none;
  color: var(--text-title);
  font-size: 13px;
}
.search-box input::placeholder { color: var(--text-dim); }
.search-box:focus-within {
  border-color: rgba(47, 216, 255, 0.5);
  box-shadow: 0 0 0 4px rgba(47, 216, 255, 0.1);
  background: rgba(255, 255, 255, 0.08);
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-radius: 12px;
  font-weight: 600;
  font-size: 14px;
  height: 40px;
  padding: 0 18px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.2s ease;
  white-space: nowrap;
}
.btn-primary {
  background: linear-gradient(135deg, #17C7FB 0%, #12D99A 100%);
  color: #04101A;
  box-shadow: 0 0 18px rgba(47, 216, 255, 0.22);
}
.btn-primary:hover { filter: brightness(1.1); box-shadow: 0 0 26px rgba(47, 216, 255, 0.35); }
.btn-primary:active { transform: translateY(1px); }
.btn-ghost {
  background: rgba(255, 255, 255, 0.04);
  border-color: var(--border-light);
  color: var(--text-body);
}
.btn-ghost:hover { border-color: rgba(47, 216, 255, 0.4); color: var(--text-title); background: rgba(47, 216, 255, 0.06); }
.menu-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-title);
  font-size: 18px;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}

/* ===== Mobile Menu ===== */
.mobile-menu {
  display: none;
  position: fixed;
  top: 60px;
  right: 0;
  width: 280px;
  max-width: calc(100vw - 24px);
  z-index: 55;
  background: rgba(10, 17, 38, 0.96);
  -webkit-backdrop-filter: blur(20px);
  backdrop-filter: blur(20px);
  border: 1px solid var(--border);
  border-radius: 18px;
  box-shadow: 0 30px 60px rgba(0, 0, 0, 0.45);
  padding: 12px;
  overflow: hidden;
}
.mobile-menu.open { display: block; }
.mobile-menu a {
  display: flex;
  align-items: center;
  height: 46px;
  padding: 0 16px;
  border-radius: 12px;
  font-size: 16px;
  font-weight: 600;
  color: var(--text-body);
}
.mobile-menu a.active { color: var(--primary); background: rgba(47, 216, 255, 0.1); }
.mobile-menu a:hover { background: rgba(255, 255, 255, 0.06); color: var(--text-title); }

/* ===== Article Hero / Breadcrumb ===== */
.article-hero {
  position: relative;
  padding: 56px 0 44px;
  background:
    linear-gradient(rgba(6, 11, 31, 0.82), rgba(6, 11, 31, 0.96)),
    url('/assets/images/backpic/back-3.webp') center / cover no-repeat;
  border-bottom: 1px solid var(--border);
}
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  color: var(--text-dim);
  font-size: 13px;
  margin-bottom: 20px;
}
.breadcrumb a { color: var(--text-sub); transition: color 0.2s; }
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb .sep { opacity: 0.6; }
.article-hero h1 {
  max-width: 900px;
  font-size: clamp(1.5rem, 3vw, 2.4rem);
  line-height: 1.35;
  letter-spacing: 0;
  color: var(--text-title);
}
.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 24px;
  margin-top: 22px;
}
.article-meta .meta-item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--text-sub);
  font-size: 14px;
}
.article-meta .meta-item i { color: var(--primary); font-size: 13px; }
.article-meta .cat-tag {
  padding: 4px 12px;
  background: rgba(47, 216, 255, 0.1);
  color: var(--primary);
  border-radius: 999px;
  font-weight: 600;
  font-size: 13px;
}

/* ===== Article Body ===== */
.article-main-section { padding: 56px 0; }
.article-frame {
  max-width: 780px;
  margin: 0 auto;
}
.article-content {
  color: var(--text-body);
  font-size: 16px;
  line-height: 1.9;
  word-break: break-word;
}
.article-content p { margin: 1.2em 0; }
.article-content h2 {
  margin: 2.2em 0 0.8em;
  font-size: 1.4rem;
  line-height: 1.45;
}
.article-content h3 { margin: 2em 0 0.6em; font-size: 1.2rem; }
.article-content h4 { margin: 1.8em 0 0.5em; font-size: 1.08rem; }
.article-content a { color: var(--primary); border-bottom: 1px solid rgba(47, 216, 255, 0.3); transition: border-color 0.2s; }
.article-content a:hover { border-color: var(--primary); }
.article-content ul { list-style: disc; padding-left: 1.4em; margin: 1.2em 0; }
.article-content ol { list-style: decimal; padding-left: 1.4em; margin: 1.2em 0; }
.article-content li { margin: 0.45em 0; }
.article-content blockquote {
  margin: 1.8em 0;
  padding: 16px 20px;
  background: rgba(47, 216, 255, 0.06);
  border-left: 3px solid var(--primary);
  border-radius: 0 16px 16px 0;
  color: var(--text-body);
}
.article-content pre {
  margin: 1.6em 0;
  padding: 18px 20px;
  background: #0C132B;
  border: 1px solid var(--border);
  border-radius: 14px;
  overflow: auto;
  color: var(--text-title);
  font-size: 14px;
  line-height: 1.6;
}
.article-content code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.9em;
}
.article-content img { border-radius: var(--radius-lg); margin: 1.6em auto; }
.article-content table { width: 100%; border-collapse: collapse; margin: 1.6em 0; font-size: 14px; }
.article-content th, .article-content td { padding: 12px 14px; border: 1px solid var(--border); text-align: left; }
.article-content th { background: rgba(255, 255, 255, 0.05); color: var(--text-title); font-weight: 700; }
.article-content hr { border: none; border-top: 1px solid var(--border); margin: 2.4em 0; }

/* ===== Notice Strip ===== */
.notice-strip { padding: 0 0 16px; }
.notice-inner {
  max-width: 780px;
  margin: 0 auto;
  background: rgba(255, 168, 62, 0.06);
  border: 1px solid rgba(255, 168, 62, 0.2);
  border-radius: 14px;
  padding: 14px 18px;
  display: flex;
  gap: 12px;
  align-items: flex-start;
  color: #B9C4E2;
  font-size: 14px;
}
.notice-inner i { color: var(--warn); margin-top: 5px; }

/* ===== Related Reading ===== */
.related-section { padding: 36px 0 20px; }
.related-head { text-align: center; margin-bottom: 24px; }
.related-head h2 { font-size: 1.8rem; }
.related-head p { color: var(--text-sub); margin-top: 8px; font-size: 14px; }
.related-empty {
  max-width: 720px;
  margin: 0 auto;
  background: var(--glass);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 26px 32px;
  display: flex;
  gap: 18px;
  align-items: center;
}
.related-empty .empty-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: rgba(47, 216, 255, 0.1);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  flex-shrink: 0;
}
.related-empty h3 { font-size: 16px; margin-bottom: 2px; }
.related-empty p { color: var(--text-dim); font-size: 14px; }

/* ===== CTA / Conversion ===== */
.cta-section { padding: 60px 0 80px; }
.cta-banner {
  background:
    linear-gradient(120deg, rgba(6, 11, 31, 0.92), rgba(13, 21, 48, 0.78)),
    url('/assets/images/coverpic/cover-6.png') center / cover no-repeat;
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 48px 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
  box-shadow: var(--shadow);
  position: relative;
  overflow: hidden;
}
.cta-banner h2 {
  font-size: clamp(1.4rem, 2.4vw, 2rem);
  margin-bottom: 10px;
}
.cta-banner p {
  max-width: 560px;
  color: var(--text-sub);
  font-size: 15px;
}
.cta-buttons { display: flex; gap: 12px; flex-wrap: wrap; }

/* ===== Article Not Found ===== */
.not-found-section { padding: 100px 0; text-align: center; }
.not-found-card {
  max-width: 560px;
  margin: 0 auto;
  background: var(--glass);
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 48px 36px;
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
}
.not-found-icon {
  width: 76px;
  height: 76px;
  margin: 0 auto 20px;
  border-radius: 20px;
  background: rgba(255, 93, 108, 0.12);
  color: var(--danger);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
}
.not-found-card h1 { font-size: 1.5rem; }
.not-found-card p { color: var(--text-sub); margin: 14px auto 24px; }

/* ===== Footer ===== */
.site-footer {
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  background: #05091A;
  padding: 60px 0 24px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 0.8fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
}
.footer-brand p {
  margin-top: 18px;
  max-width: 420px;
  color: var(--text-sub);
  font-size: 15px;
  line-height: 1.8;
}
.site-footer h4 {
  font-size: 15px;
  color: var(--text-title);
  margin-bottom: 14px;
}
.footer-links { display: flex; flex-direction: column; gap: 10px; }
.footer-links a { color: var(--text-sub); font-size: 14px; transition: all 0.2s; }
.footer-links a:hover { color: var(--primary); padding-left: 4px; }
.footer-safe {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 14px 16px;
  color: var(--text-dim);
  font-size: 13px;
  line-height: 1.75;
}
.footer-safe strong { color: var(--text-title); }
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  padding-top: 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  color: var(--text-dim);
  font-size: 13px;
}
.footer-bottom span:last-child { color: var(--text-dim); }
@media (max-width: 768px) {
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .site-header .container { gap: 16px; }
  .nav-link { padding: 0 9px; font-size: 14px; }
  .search-box { width: 160px; }
  .header-btn { padding: 0 12px; font-size: 13px; }
  .cta-banner { padding: 36px 28px; }
}
@media (max-width: 820px) {
  .search-box { display: none; }
  .nav-links { display: none; }
  .header-btn { display: none; }
  .menu-toggle { display: inline-flex; }
  .site-header, .site-header .container { height: 60px; }
  .article-hero { padding: 36px 0 30px; }
  .article-meta { gap: 10px 14px; }
  .article-main-section { padding: 36px 0; }
  .mobile-menu { top: 62px; }
}
@media (max-width: 520px) {
  .brand-text { font-size: 16px; }
  .article-hero h1 { font-size: 1.35rem; line-height: 1.4; }
  .article-frame .article-content { font-size: 15px; }
  .article-meta .meta-item { font-size: 13px; }
  .related-empty { flex-direction: column; text-align: center; }
  .cta-banner { flex-direction: column; text-align: center; padding: 30px 20px; }
  .cta-buttons { justify-content: center; width: 100%; }
  .cta-buttons .btn { flex: 1; }
  .footer-bottom { flex-direction: column; text-align: center; }
}

/* roulang page: category1 */
:root{
  --bg:#060B1F;
  --surface:#0D1530;
  --surface-2:#111D3D;
  --primary:#2FD8FF;
  --green:#1EE0A2;
  --amber:#FFA83E;
  --red:#FF5D6C;
  --title:#F0F5FF;
  --text:#C5D1EB;
  --sub:#8698BC;
  --faint:#5F7096;
  --line:rgba(148,178,255,.14);
  --card-glass:rgba(148,178,255,.065);
  --radius-lg:20px;
  --radius-md:14px;
  --shadow:0 18px 40px rgba(0,0,0,.26);
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background-color:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei UI","Microsoft YaHei","Noto Sans CJK SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:-2;
  background:
    radial-gradient(620px 320px at 10% -4%, rgba(47,216,255,.10), transparent 60%),
    radial-gradient(500px 300px at 95% 6%, rgba(30,224,162,.06), transparent 60%),
    var(--bg);
}
body::after{
  content:"";
  position:fixed;
  inset:0;
  z-index:-1;
  pointer-events:none;
  background-image:linear-gradient(rgba(148,178,255,.028) 1px,transparent 1px),linear-gradient(90deg,rgba(148,178,255,.028) 1px,transparent 1px);
  background-size:52px 52px;
  mask-image:linear-gradient(to bottom, rgba(0,0,0,.7), transparent 82%);
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font-family:inherit}
h1,h2,h3,h4,strong{color:var(--title);font-weight:800;line-height:1.35}
p{margin-top:.25em;margin-bottom:.9em}
::selection{background:rgba(47,216,255,.25);color:#fff}

.site-container{
  max-width:1280px;
  margin-inline:auto;
  padding-inline:32px;
}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:46px;
  padding:0 22px;
  border-radius:999px;
  font-weight:700;
  font-size:15px;
  cursor:pointer;
  border:1px solid transparent;
  transition:transform .18s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease;
  white-space:nowrap;
}
.btn:active{transform:translateY(1px)}
.btn-primary{
  color:#04121c;
  background:linear-gradient(135deg,#2FD8FF 0%,#1EE0A2 100%);
  box-shadow:0 0 0 1px rgba(47,216,255,.18),0 8px 24px rgba(47,216,255,.24);
}
.btn-primary:hover{
  box-shadow:0 0 0 1px rgba(47,216,255,.35),0 10px 34px rgba(47,216,255,.38);
  transform:translateY(-1px);
}
.btn-secondary{
  color:var(--title);
  border-color:rgba(148,178,255,.26);
  background:rgba(148,178,255,.06);
  backdrop-filter:blur(10px);
}
.btn-secondary:hover{border-color:rgba(47,216,255,.65);background:rgba(47,216,255,.1)}
.btn-outline{
  min-height:40px;
  padding:0 18px;
  background:transparent;
  border-color:rgba(148,178,255,.22);
  color:var(--text);
}
.btn-outline:hover{border-color:var(--primary);color:var(--primary)}

.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(6,11,31,.82);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid rgba(148,178,255,.09);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:24px;
  min-height:72px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:12px;
  flex-shrink:0;
}
.brand-logo{
  width:38px;
  height:38px;
  border-radius:13px;
  display:grid;
  place-items:center;
  font-size:21px;
  font-weight:900;
  color:#031018;
  background:linear-gradient(135deg,#b7f3ff 0%,#1EE0A2 100%);
  box-shadow:0 0 18px rgba(47,216,255,.55);
}
.brand-text{
  color:var(--title);
  font-size:18px;
  font-weight:900;
  letter-spacing:.02em;
  white-space:nowrap;
}
.nav-links{
  display:flex;
  align-items:center;
  gap:6px;
  margin-inline:auto;
  list-style:none;
}
.nav-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  min-height:44px;
  padding:0 15px;
  color:var(--sub);
  font-size:15px;
  font-weight:600;
  border-radius:12px;
  transition:color .2s,background .2s;
}
.nav-link:hover{color:var(--title);background:rgba(148,178,255,.08)}
.nav-link.active{color:#fff}
.nav-link.active::after{
  content:"";
  position:absolute;
  left:16px;
  right:16px;
  bottom:4px;
  height:2px;
  border-radius:2px;
  background:linear-gradient(90deg,var(--primary),var(--green));
  box-shadow:0 0 12px rgba(47,216,255,.8);
}
.header-tools{
  display:flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
}
.search-box{
  position:relative;
  display:flex;
  align-items:center;
}
.search-box svg{
  position:absolute;
  left:13px;
  width:17px;
  height:17px;
  color:var(--sub);
  pointer-events:none;
}
.search-box input{
  width:210px;
  height:42px;
  padding-left:38px;
  padding-right:16px;
  border-radius:999px;
  background:rgba(148,178,255,.07);
  border:1px solid rgba(148,178,255,.16);
  color:var(--title);
  font-size:14px;
  outline:none;
  transition:width .2s,border-color .2s,box-shadow .2s;
}
.search-box input::placeholder{color:var(--faint)}
.search-box input:focus{
  border-color:rgba(47,216,255,.7);
  box-shadow:0 0 0 4px rgba(47,216,255,.12);
  background:rgba(13,21,48,.9);
  width:240px;
}
.menu-button{
  display:none;
  width:44px;
  height:44px;
  border:1px solid var(--line);
  border-radius:14px;
  background:rgba(148,178,255,.06);
  color:var(--title);
}
.menu-button svg{width:20px;height:20px}

.page-hero{
  position:relative;
  padding:86px 0 72px;
  overflow:hidden;
}
.hero-bg{
  position:absolute;
  inset:0;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;
  background-position:center;
  opacity:.18;
}
.hero-bg::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(6,11,31,.72) 0%,var(--bg) 100%);
}
.page-hero .site-container{position:relative;z-index:2}
.hero-grid{
  display:grid;
  grid-template-columns:minmax(0,1fr) 360px;
  gap:56px;
  align-items:center;
}
.channel-badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:8px 16px;
  border-radius:999px;
  background:rgba(47,216,255,.1);
  border:1px solid rgba(47,216,255,.28);
  color:var(--primary);
  font-size:13px;
  font-weight:700;
}
.hero-title{
  font-size:clamp(2rem,4vw,3.1rem);
  line-height:1.28;
  color:var(--title);
  margin:.55em 0 .3em;
  letter-spacing:.01em;
}
.hero-title .grad-line{
  display:inline-block;
  background:linear-gradient(90deg,var(--primary),var(--green));
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.hero-lead{
  font-size:17px;
  color:var(--text);
  max-width:640px;
}

.monitor-card{
  background:rgba(148,178,255,.07);
  border:1px solid var(--line);
  border-radius:24px;
  padding:26px;
  backdrop-filter:blur(15px);
  box-shadow:var(--shadow);
  position:relative;
}
.monitor-card::before{
  content:"";
  position:absolute;
  top:0;
  left:24px;
  right:24px;
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.22),transparent);
}
.monitor-top{
  display:flex;
  align-items:center;
  justify-content:space-between;
  margin-bottom:18px;
}
.monitor-top span{color:var(--sub);font-size:13px;font-weight:600}
.live-label{
  display:inline-flex;
  align-items:center;
  gap:6px;
  color:var(--green);
  font-size:13px;
  font-weight:700;
}
.dot-status{
  width:8px;height:8px;border-radius:50%;
  background:var(--green);
  box-shadow:0 0 10px var(--green);
  animation:pulse 1.6s infinite;
}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.4}}
.monitor-num{
  font-size:42px;
  line-height:1;
  color:#fff;
  font-weight:900;
  font-variant-numeric:tabular-nums;
  letter-spacing:-.02em;
}
.monitor-num small{font-size:16px;font-weight:700;color:var(--primary)}
.monitor-list{
  margin-top:22px;
  border-top:1px solid rgba(148,178,255,.1);
  padding-top:20px;
  display:grid;
  gap:14px;
}
.mtr-row{
  display:flex;
  justify-content:space-between;
  font-size:14px;
}
.mtr-row em{font-style:normal;color:var(--sub)}
.mtr-row b{color:var(--title);font-variant-numeric:tabular-nums}

.stats-block{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:18px;
}
.stat-card{
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:24px;
  background:linear-gradient(180deg,rgba(148,178,255,.055),rgba(13,21,48,.5));
  transition:border-color .2s,transform .2s;
}
.stat-card:hover{border-color:rgba(47,216,255,.35);transform:translateY(-3px)}
.stat-card .stat-ico{font-size:24px;color:var(--primary)}
.stat-num{
  font-size:34px;
  line-height:1.15;
  font-weight:900;
  color:#fff;
  font-variant-numeric:tabular-nums;
  margin:.28em 0 .1em;
}
.stat-card p{margin:0;color:var(--sub);font-size:14px}

.section-block{padding:70px 0}
.section-title-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:34px}
.sec-kicker{display:inline-block;font-size:13px;font-weight:800;letter-spacing:.08em;color:var(--green);margin-bottom:8px}
.sec-title{font-size:clamp(1.6rem,2.6vw,2.2rem);margin:0}
.sec-desc{color:var(--sub);max-width:620px;margin:.55em 0 0 0}
.section-title-row .sec-desc{margin:0 0 4px}

.port-table-card{
  border:1px solid var(--line);
  border-radius:22px;
  overflow:hidden;
  background:rgba(13,21,48,.62);
  box-shadow:var(--shadow);
}
.port-row{
  display:grid;
  grid-template-columns:minmax(180px,1.2fr) minmax(120px,.7fr) minmax(100px,.5fr) 1fr auto;
  gap:18px;
  align-items:center;
  padding:22px 24px;
  background:rgba(148,178,255,.03);
  border-bottom:1px solid rgba(148,178,255,.08);
  transition:background .2s;
}
.port-row:hover{background:rgba(47,216,255,.055)}
.port-row:last-child{border-bottom:0}
.port-head{
  font-size:(1.1rem);
  font-weight:800;
  color:var(--title);
  margin-bottom:3px;
}
.port-sub{color:var(--sub);font-size:14px}
.status-tag{
  display:inline-flex;
  align-items:center;
  gap:7px;
  min-height:30px;
  padding:0 11px;
  border-radius:999px;
  font-size:13px;
  font-weight:700;
}
.status-tag.online{color:var(--green);background:rgba(30,224,162,.12);border:1px solid rgba(30,224,162,.22)}
.status-tag.wait{color:var(--amber);background:rgba(255,168,62,.12);border:1px solid rgba(255,168,62,.22)}
.status-tag.danger{color:var(--red);background:rgba(255,93,108,.1);border:1px solid rgba(255,93,108,.22)}
.status-tag .dot-status{width:6px;height:6px}
.port-time{color:var(--faint);font-size:13px;font-variant-numeric:tabular-nums}
.port-note{color:var(--text);font-size:14px}
.port-actions{display:flex;gap:8px;align-items:center}

.panel-note{
  display:flex;
  align-items:center;
  gap:12px;
  margin-top:18px;
  padding:14px 18px;
  border-radius:14px;
  background:rgba(255,168,62,.08);
  border:1px solid rgba(255,168,62,.18);
  color:#e7c79d;
  font-size:14px;
}

.scene-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:24px;
}
.scene-card{
  position:relative;
  border:1px solid var(--line);
  border-radius:24px;
  overflow:hidden;
  background:var(--surface);
  min-height:340px;
  display:flex;
  flex-direction:column;
  justify-content:flex-end;
  box-shadow:var(--shadow);
}
.scene-card img{
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
  object-fit:cover;
  opacity:.32;
}
.scene-card::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(185deg,transparent 10%,rgba(6,11,31,.82) 92%);
}
.scene-content{
  position:relative;
  z-index:2;
  padding:26px;
}
.scene-content h3{font-size:1.25rem;margin:0 0 8px}
.scene-content p{margin:0;color:var(--text);font-size:14px}

.flow-wrap{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:20px;
  margin-top:12px;
}
.flow-step{
  position:relative;
  border:1px solid var(--line);
  border-radius:22px;
  background:linear-gradient(180deg,rgba(148,178,255,.05),rgba(13,21,48,.65));
  padding:26px 24px 24px;
}
.step-index{
  width:32px;
  height:32px;
  border-radius:11px;
  display:grid;
  place-items:center;
  font-size:14px;
  font-weight:900;
  color:#04121f;
  background:linear-gradient(135deg,var(--primary),var(--green));
  margin-bottom:20px;
}
.flow-step h3{margin:.2em 0 .5em;font-size:1.1rem}
.flow-step p{margin:0;color:var(--sub);font-size:14px}

.entry-tip{
  border-left:3px solid var(--primary);
  background:rgba(47,216,255,.07);
  padding:14px 20px;
  border-radius:0 16px 16px 0;
  color:var(--text);
  font-size:14px;
  margin-top:10px;
}

.copy-strip{
  display:flex;
  flex-wrap:wrap;
  gap:10px 24px;
  align-items:center;
  margin-top:14px;
}
.copy-strip-btn{
  display:inline-flex;
  align-items:center;
  gap:6px;
  border:1px dashed rgba(148,178,255,.32);
  background:rgba(148,178,255,.05);
  color:var(--sub);
  font-size:13px;
  padding:8px 14px;
  border-radius:99px;
  cursor:pointer;
  transition:border-color .2s,color .2s;
}
.copy-strip-btn:hover{border-color:var(--primary);color:var(--primary)}

.faq-wrap{
  display:grid;
  gap:14px;
  max-width:920px;
}
.faq-item{
  border:1px solid var(--line);
  background:rgba(148,178,255,.04);
  border-radius:18px;
  transition:border-color .2s,background .2s;
}
.faq-item[open]{background:rgba(47,216,255,.05);border-color:rgba(47,216,255,.3)}
.faq-item summary{
  cursor:pointer;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  min-height:58px;
  padding:14px 22px;
  list-style:none;
  color:var(--title);
  font-weight:700;
  font-size:16px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item .faq-icon{
  flex-shrink:0;
  width:28px;height:28px;
  border-radius:9px;
  display:grid;place-items:center;
  border:1px solid var(--line);
  color:var(--primary);
  font-size:20px;
  transition:transform .25s,background .25s;
}
.faq-item[open] .faq-icon{
  transform:rotate(45deg);
  background:rgba(47,216,255,.15);
  border-color:rgba(47,216,255,.4);
}
.faq-answer{
  padding:0 22px 22px;
  color:var(--text);
  font-size:15px;
}

.cta-panel{
  border:1px solid rgba(47,216,255,.24);
  border-radius:26px;
  position:relative;
  overflow:hidden;
  background:
    linear-gradient(120deg,rgba(47,216,255,.1),rgba(6,11,31,.2)),
    url('/assets/images/backpic/back-2.webp') center/cover;
}
.cta-inner{
  position:relative;
  z-index:2;
  padding:44px;
  display:grid;
  grid-template-columns:1.06fr 1fr;
  gap:40px;
  background:linear-gradient(100deg,rgba(6,11,31,.8) 0%,rgba(6,11,31,.45) 55%,rgba(6,11,31,.76));
}
.cta-left h2{font-size:clamp(1.6rem,2.5vw,2rem);margin:.3em 0 .5em}
.cta-left p{color:var(--text);font-size:15px}
.lead-list{display:grid;gap:10px;margin:0 0 22px;padding:0;list-style:none}
.lead-list li{display:flex;gap:10px;align-items:center;color:var(--title);font-size:15px}
.lead-list li svg{width:17px;height:17px;color:var(--green);flex-shrink:0}
.feedback-form{   
  background:rgba(13,21,48,.86);
  border:1px solid var(--line);
  border-radius:19px;
  padding:22px;
  backdrop-filter:blur(12px);
}
.form-row{margin-bottom:14px}
.form-row label{display:block;color:var(--sub);font-size:13px;margin-bottom:8px;font-weight:600}
.form-control{
  width:100%;
  min-height:44px;
  background:rgba(148,178,255,.06);
  border:1px solid rgba(148,178,255,.18);
  border-radius:12px;
  padding:0 14px;
  color:var(--title);
  font-size:14px;
  outline:none;
  transition:border-color .2s,box-shadow .2s;
}
textarea.form-control{
  min-height:88px;
  padding-top:12px;
  resize:vertical;
}
.form-control:focus{
  border-color:rgba(47,216,255,.65);
  box-shadow:0 0 0 4px rgba(47,216,255,.1);
}
.form-tip{color:var(--faint);font-size:12px;margin:12px 0 0}

.site-footer{
  border-top:1px solid rgba(148,178,255,.1);
  margin-top:20px;
  background:linear-gradient(180deg,var(--bg),#04091a 60%);
  padding:54px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1.3fr;
  gap:42px;
}
.footer-brand .brand{margin-bottom:4px}
.footer-brand p{color:var(--sub);font-size:15px;line-height:1.8}
.site-footer h4{
  font-size:15px;
  margin:0 0 14px;
  letter-spacing:.05em;
}
.footer-links{
  display:grid;
  gap:6px;
}
.footer-links a{
  color:var(--sub);
  font-size:14px;
  transition:color .2s,padding-left .2s;
}
.footer-links a:hover{color:var(--primary);padding-left:4px}
.footer-safe{
  color:var(--sub);
  font-size:14px;
  background:rgba(148,178,255,.05);
  border:1px solid var(--line);
  border-radius:14px;
  padding:14px 18px;
  line-height:1.8;
}
.footer-safe strong{color:var(--amber);font-size:13px}
.footer-bottom{
  border-top:1px solid rgba(148,178,255,.08);
  margin-top:40px;
  padding:20px 0;
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:18px;
  flex-wrap:wrap;
  color:var(--faint);
  font-size:13px;
  font-variant-numeric:tabular-nums;
}
.mobile-nav{
  display:none;
}

@media(max-width:1200px){
  .nav-links{display:none}
  .menu-button{display:inline-flex;align-items:center;justify-content:center}
  .header-actions{display:flex;align-items:center;gap:10px}
  .mobile-nav{
    display:block;
    position:fixed;
    inset:0;
    z-index:60;
    background:rgba(4,8,20,.92);
    padding:100px 28px 40px;
    backdrop-filter:blur(18px);
    transform:translateX(105%);
    transition:transform .3s ease;
  }
  body.nav-open .mobile-nav{transform:translateX(0)}
  .mobile-nav-links{display:grid;gap:4px}
  .mobile-nav-links a{
    display:block;
    color:var(--text);
    font-size:20px;
    font-weight:700;
    padding:16px 8px;
    border-bottom:1px solid rgba(148,178,255,.08);
  }
  .mobile-nav-links a.active{color:var(--primary)}
}
@media(max-width:1024px){
  .header-inner{min-height:64px}
  .search-box input{width:150px}
  .hero-grid,.cta-inner{grid-template-columns:1fr}
  .monitor-card{max-width:520px}
  .stats-block{grid-template-columns:1fr 1fr}
  .flow-wrap{grid-template-columns:1fr}
  .scene-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .port-row{grid-template-columns:1fr 1fr;row-gap:10px}
  .port-actions{justify-content:flex-start}
}
@media(max-width:768px){
  .site-container{padding-inline:20px}
  .section-block{padding:54px 0}
  .stats-block{grid-template-columns:1fr 1fr;gap:12px}
  .stat-card{padding:18px}
  .stat-num{font-size:28px}
  .port-row{grid-template-columns:1fr}
  .header-tools .search-box{display:none}
  .footer-grid{grid-template-columns:1fr}
  .cta-inner{padding:28px 20px}
  .section-title-row{display:block}
  .section-title-row .sec-desc{margin-top:10px}
}
@media(max-width:520px){
  .search-box input{width:120px}
  .brand-text{font-size:16px}
  .stats-block{grid-template-columns:1fr 1fr}
  .btn{padding:0 16px;font-size:14px}
  .monitor-card{padding:18px}
  .hero-title,.hero-lead{text-align:left}
  .footer-links{grid-template-columns:1fr}
}

/* roulang page: category2 */
:root {
            --bg: #060B1F;
            --surface: #0D1530;
            --surface-light: #111D3D;
            --primary: #2FD8FF;
            --success: #1EE0A2;
            --warning: #FFA83E;
            --danger: #FF5D6C;
            --text-title: #F0F5FF;
            --text-body: #C5D1EB;
            --text-secondary: #8698BC;
            --text-muted: #5F7096;
            --border-glass: rgba(255, 255, 255, 0.08);
            --bg-glass: rgba(148, 178, 255, 0.06);
            --radius-lg: 20px;
            --radius-md: 14px;
            --shadow-deep: 0 18px 40px rgba(0, 0, 0, 0.25);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: 'PingFang SC', 'HarmonyOS Sans SC', 'Microsoft YaHei UI', 'Microsoft YaHei', 'Noto Sans CJK SC', sans-serif;
            background-color: var(--bg);
            color: var(--text-body);
            line-height: 1.75;
            font-size: 16px;
            overflow-x: hidden;
        }

        /* 背景微光 */
        body::before {
            content: '';
            position: fixed;
            top: -200px;
            right: -200px;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(47, 216, 255, 0.08) 0%, transparent 70%);
            pointer-events: none;
            z-index: 0;
        }

        body::after {
            content: '';
            position: fixed;
            bottom: -300px;
            left: -200px;
            width: 700px;
            height: 700px;
            background: radial-gradient(circle, rgba(47, 216, 255, 0.05) 0%, transparent 70%);
            pointer-events: none;
            z-index: 0;
        }

        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding-left: 32px;
            padding-right: 32px;
            position: relative;
            z-index: 1;
        }

        .glass-card {
            background: var(--bg-glass);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border: 1px solid var(--border-glass);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-deep);
        }

        .glass-card-md {
            border-radius: var(--radius-md);
            background: var(--bg-glass);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border: 1px solid var(--border-glass);
        }

        /* 内容框架 */
        .content-wrapper {
            position: relative;
            z-index: 1;
        }

        /* 导航 */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(6, 11, 31, 0.72);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            height: 72px;
            display: flex;
            align-items: center;
        }

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

        .brand {
            display: flex;
            align-items: center;
            text-decoration: none;
            gap: 10px;
            flex-shrink: 0;
        }

        .brand-logo {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: linear-gradient(135deg, #2FD8FF 0%, #1EE0A2 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            color: #060B1F;
            font-size: 20px;
            box-shadow: 0 0 18px rgba(47, 216, 255, 0.4);
        }

        .brand-text {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-title);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }

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

        .nav-link {
            display: inline-flex;
            align-items: center;
            padding: 8px 16px;
            border-radius: 8px;
            color: var(--text-secondary);
            font-size: 15px;
            font-weight: 500;
            text-decoration: none;
            transition: all 0.25s ease;
            white-space: nowrap;
        }

        .nav-link:hover {
            color: var(--text-title);
            background: rgba(148, 178, 255, 0.08);
        }

        .nav-link.active {
            color: #fff;
            background: linear-gradient(135deg, rgba(47, 216, 255, 0.18), rgba(30, 224, 162, 0.12));
            border: 1px solid rgba(47, 216, 255, 0.18);
            font-weight: 600;
        }

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

        .header-search {
            display: flex;
            align-items: center;
            background: rgba(148, 178, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.06);
            border-radius: 10px;
            padding: 0 12px;
            height: 38px;
            width: 200px;
            transition: border-color 0.3s, box-shadow 0.3s;
        }

        .header-search:focus-within {
            border-color: rgba(47, 216, 255, 0.5);
            box-shadow: 0 0 0 3px rgba(47, 216, 255, 0.1);
        }

        .header-search input {
            background: transparent;
            border: none;
            outline: none;
            color: var(--text-title);
            font-size: 14px;
            width: 100%;
            margin-left: 8px;
        }

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

        .header-search i {
            color: var(--text-muted);
            font-size: 14px;
        }

        .btn-login {
            padding: 8px 16px;
            border-radius: 10px;
            border: 1px solid rgba(255, 255, 255, 0.1);
            background: transparent;
            color: var(--text-body);
            font-size: 14px;
            font-weight: 500;
            cursor: pointer;
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: all 0.25s ease;
            white-space: nowrap;
        }

        .btn-login:hover {
            border-color: rgba(47, 216, 255, 0.5);
            color: var(--primary);
        }

        .btn-primary-nav {
            padding: 8px 18px;
            border-radius: 10px;
            background: linear-gradient(135deg, #2FD8FF, #1EE0A2);
            color: #060B1F;
            font-size: 14px;
            font-weight: 700;
            border: none;
            cursor: pointer;
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: all 0.25s ease;
            box-shadow: 0 2px 12px rgba(47, 216, 255, 0.25);
            white-space: nowrap;
        }

        .btn-primary-nav:hover {
            box-shadow: 0 2px 20px rgba(47, 216, 255, 0.45);
            transform: translateY(-1px);
        }

        .btn-primary-nav:active {
            transform: translateY(1px);
            box-shadow: 0 1px 8px rgba(47, 216, 255, 0.3);
        }

        /* 汉堡菜单 */
        .burger-btn {
            display: none;
            background: none;
            border: none;
            color: var(--text-title);
            font-size: 24px;
            cursor: pointer;
            width: 40px;
            height: 40px;
            border-radius: 8px;
            align-items: center;
            justify-content: center;
            transition: background 0.2s;
        }

        .burger-btn:hover {
            background: rgba(148, 178, 255, 0.1);
        }

        /* 移动端菜单 */
        .mobile-menu {
            display: none;
            position: fixed;
            top: 60px;
            left: 0;
            right: 0;
            background: rgba(6, 11, 31, 0.96);
            backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            padding: 16px 20px 24px;
            z-index: 99;
            flex-direction: column;
            gap: 4px;
        }

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

        .mobile-menu .nav-link {
            padding: 14px 12px;
            font-size: 16px;
            border-radius: 10px;
        }

        .mobile-search {
            display: flex;
            align-items: center;
            background: rgba(148, 178, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.06);
            border-radius: 10px;
            padding: 0 12px;
            height: 44px;
            margin-bottom: 8px;
        }

        .mobile-search input {
            background: transparent;
            border: none;
            outline: none;
            color: var(--text-title);
            font-size: 15px;
            width: 100%;
            margin-left: 10px;
        }

        /* 通用按钮 */
        .btn-main {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            min-height: 44px;
            padding: 10px 26px;
            border-radius: 12px;
            background: linear-gradient(135deg, #2FD8FF, #14B8C8);
            color: #060B1F;
            font-weight: 600;
            font-size: 15px;
            border: none;
            cursor: pointer;
            text-decoration: none;
            transition: all 0.3s ease;
            box-shadow: 0 4px 18px rgba(47, 216, 255, 0.25);
        }

        .btn-main:hover {
            box-shadow: 0 6px 28px rgba(47, 216, 255, 0.4);
            transform: translateY(-2px);
        }

        .btn-main:active {
            transform: translateY(0px);
        }

        .btn-ghost {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            min-height: 44px;
            padding: 10px 26px;
            border-radius: 12px;
            background: rgba(148, 178, 255, 0.06);
            color: var(--text-title);
            font-size: 15px;
            font-weight: 500;
            border: 1px solid rgba(255, 255, 255, 0.12);
            cursor: pointer;
            text-decoration: none;
            transition: all 0.3s ease;
        }

        .btn-ghost:hover {
            border-color: rgba(47, 216, 255, 0.6);
            color: var(--primary);
        }

        /* 状态点 */
        .status-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            display: inline-block;
            flex-shrink: 0;
        }

        .dot-green {
            background: var(--success);
            box-shadow: 0 0 8px rgba(30, 224, 162, 0.6);
        }

        .dot-amber {
            background: var(--warning);
            box-shadow: 0 0 8px rgba(255, 168, 62, 0.6);
        }

        /* 区块标签 */
        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 14px;
            border-radius: 999px;
            background: rgba(47, 216, 255, 0.1);
            border: 1px solid rgba(47, 216, 255, 0.15);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.5px;
            margin-bottom: 18px;
        }

        .section-title {
            font-size: clamp(1.5rem, 2.4vw, 2rem);
            font-weight: 800;
            color: var(--text-title);
            line-height: 1.3;
            letter-spacing: -0.3px;
        }

        .section-desc {
            font-size: 15px;
            line-height: 1.75;
            color: var(--text-secondary);
            margin-top: 8px;
        }

        /* FAQ 样式 */
        .faq-item {
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: 14px;
            margin-bottom: 12px;
            overflow: hidden;
            transition: border-color 0.3s;
            background: rgba(148, 178, 255, 0.04);
        }

        .faq-item.open {
            border-color: rgba(47, 216, 255, 0.3);
            background: rgba(148, 178, 255, 0.07);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 16px 20px;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-title);
            min-height: 52px;
            user-select: none;
        }

        .faq-question i {
            transition: transform 0.3s ease;
            color: var(--primary);
            font-size: 16px;
            flex-shrink: 0;
            margin-left: 16px;
        }

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

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.3s ease;
            padding: 0 20px;
            color: var(--text-body);
            font-size: 14.5px;
            line-height: 1.8;
        }

        .faq-item.open .faq-answer {
            max-height: 400px;
            padding-bottom: 18px;
        }

        /* 卡片编号 */
        .step-num {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: linear-gradient(135deg, rgba(47, 216, 255, 0.2), rgba(30, 224, 162, 0.15));
            border: 1px solid rgba(47, 216, 255, 0.3);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            font-weight: 700;
            color: var(--primary);
            flex-shrink: 0;
        }

        /* 步骤时间线 */
        .timeline-item {
            position: relative;
            padding-left: 68px;
            padding-bottom: 40px;
        }

        .timeline-item::before {
            content: '';
            position: absolute;
            left: 18px;
            top: 44px;
            bottom: 0;
            width: 1px;
            background: rgba(47, 216, 255, 0.15);
        }

        .timeline-item:last-child::before {
            display: none;
        }

        .timeline-item .step-num {
            position: absolute;
            left: 0;
            top: 0;
        }

        .step-content h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-title);
            margin-bottom: 6px;
        }

        .step-content p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.75;
        }

        /* 代码/提示块 */
        .tip-box {
            border-left: 3px solid var(--primary);
            padding: 14px 18px;
            background: rgba(47, 216, 255, 0.06);
            border-radius: 0 10px 10px 0;
            margin: 12px 0;
            font-size: 14.5px;
        }

        /* 页脚 */
        .site-footer {
            background: rgba(6, 11, 31, 0.9);
            border-top: 1px solid rgba(47, 216, 255, 0.12);
            padding: 48px 0 0;
            position: relative;
            z-index: 1;
            margin-top: 60px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr;
            gap: 48px;
            padding-bottom: 40px;
        }

        .footer-brand p {
            font-size: 14px;
            color: var(--text-secondary);
            margin-top: 14px;
            line-height: 1.8;
            max-width: 360px;
        }

        .footer-grid h4 {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-title);
            margin-bottom: 16px;
        }

        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .footer-links a {
            color: var(--text-secondary);
            text-decoration: none;
            font-size: 14px;
            transition: color 0.2s;
        }

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

        .footer-safe {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
            padding: 14px 16px;
            background: rgba(255, 168, 62, 0.05);
            border: 1px solid rgba(255, 168, 62, 0.12);
            border-radius: 10px;
        }

        .footer-safe strong {
            color: var(--warning);
        }

        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 20px 0;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            font-size: 13px;
            color: var(--text-muted);
        }

        /* 通用时间段line装饰 */
        .gradient-text {
            background: linear-gradient(135deg, #2FD8FF, #1EE0A2);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        /* 内页 Hero */
        .page-hero-bg {
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            position: relative;
            overflow: hidden;
        }

        .page-hero-bg::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(6, 11, 31, 0.82);
            backdrop-filter: brightness(0.7);
        }

        /* 响应式 */
        @media (max-width: 1024px) {
            .container {
                padding-left: 24px;
                padding-right: 24px;
            }

            .nav-links {
                display: none;
            }

            .btn-login {
                display: none;
            }

            .header-search {
                display: none;
            }

            .burger-btn {
                display: flex;
            }

            .header-actions {
                gap: 0;
            }

            .btn-primary-nav {
                display: none;
            }

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

        @media (max-width: 768px) {
            .container {
                padding-left: 20px;
                padding-right: 20px;
            }

            .site-header {
                height: 60px;
            }

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

            .footer-bottom {
                flex-direction: column;
                gap: 6px;
                text-align: center;
            }
        }

        @media (max-width: 520px) {
            .brand-text {
                font-size: 15px;
            }

            .footer-grid {
                gap: 24px;
            }
        }

/* roulang page: category3 */
:root {
            --page-bg: #060B1F;
            --surface: #0D1530;
            --surface-2: #111D3D;
            --primary: #2FD8FF;
            --success: #1EE0A2;
            --warning: #FFA83E;
            --danger: #FF5D6C;
            --text-title: #F0F5FF;
            --text-body: #C5D1EB;
            --text-muted: #8698BC;
            --text-faint: #5F7096;
            --border-glass: rgba(255, 255, 255, .08);
            --glass-bg: rgba(148, 178, 255, .06);
            --radius-lg: 20px;
            --radius-md: 14px;
            --radius-sm: 10px;
            --shadow-card: 0 18px 40px rgba(0, 0, 0, .25);
            --transition: .2s ease;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            margin: 0;
            background: var(--page-bg);
            color: var(--text-body);
            font-family: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei UI", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
        }
        img {
            max-width: 100%;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition);
        }
        button,
        input,
        textarea,
        select {
            font-family: inherit;
            font-size: 1rem;
        }
        h1,
        h2,
        h3,
        h4,
        .brand-text {
            color: var(--text-title);
            font-weight: 800;
            line-height: 1.35;
            letter-spacing: .01em;
        }
        h1,
        h2,
        h3 {
            margin: 0;
        }
        .container {
            width: 100%;
            max-width: 1280px;
            margin-left: auto;
            margin-right: auto;
            padding-left: 32px;
            padding-right: 32px;
        }
        @media (max-width: 768px) {
            .container {
                padding-left: 20px;
                padding-right: 20px;
            }
        }
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            height: 72px;
            background: rgba(6, 11, 31, .78);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(255, 255, 255, .06);
        }
        .header-inner {
            height: 72px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
        }
        .brand {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .brand-logo {
            width: 38px;
            height: 38px;
            border-radius: 12px;
            background: linear-gradient(135deg, #2FD8FF, #1EE0A2);
            color: #060B1F;
            font-weight: 900;
            font-size: 1.35rem;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 0 22px rgba(47, 216, 255, .32);
        }
        .brand-text {
            font-size: 1.08rem;
            font-weight: 800;
            white-space: nowrap;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .nav-link {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 40px;
            border-radius: 10px;
            padding: 0 16px;
            font-size: .92rem;
            font-weight: 600;
            color: var(--text-muted);
        }
        .nav-link:hover {
            color: var(--text-title);
            background: rgba(148, 178, 255, .08);
        }
        .nav-link.active {
            color: var(--primary);
            background: rgba(47, 216, 255, .08);
            box-shadow: inset 0 0 0 1px rgba(47, 216, 255, .15);
        }
        .header-search {
            width: 200px;
            height: 40px;
            border-radius: 10px;
            background: rgba(148, 178, 255, .06);
            border: 1px solid rgba(255, 255, 255, .08);
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 0 12px;
            transition: border-color var(--transition), box-shadow var(--transition);
        }
        .header-search input {
            background: transparent;
            border: none;
            outline: none;
            color: var(--text-title);
            width: 100%;
            font-size: .9rem;
        }
        .header-search input::placeholder {
            color: var(--text-faint);
        }
        .header-search:focus-within {
            border-color: rgba(47, 216, 255, .55);
            box-shadow: 0 0 0 3px rgba(47, 216, 255, .13);
        }
        .header-search i {
            color: var(--text-faint);
            font-size: .9rem;
            flex-shrink: 0;
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-height: 44px;
            border-radius: 12px;
            padding: 0 20px;
            font-weight: 700;
            font-size: .94rem;
            border: 1px solid transparent;
            cursor: pointer;
            transition: transform .15s ease, box-shadow .2s ease, background .2s ease, border-color .2s ease, opacity .2s ease;
            white-space: nowrap;
        }
        .btn-primary {
            background: linear-gradient(135deg, #2FD8FF, #31E6B8);
            color: #061029;
            box-shadow: 0 8px 24px rgba(47, 216, 255, .22);
        }
        .btn-primary:hover {
            box-shadow: 0 10px 34px rgba(47, 216, 255, .4);
            opacity: .95;
        }
        .btn-primary:active {
            transform: translateY(1px);
        }
        .btn-ghost {
            background: rgba(148, 178, 255, .06);
            border-color: rgba(255, 255, 255, .12);
            color: var(--text-title);
        }
        .btn-ghost:hover {
            border-color: rgba(47, 216, 255, .55);
            color: var(--primary);
        }
        .mobile-menu-btn {
            display: none;
            width: 44px;
            height: 44px;
            align-items: center;
            justify-content: center;
            border-radius: 10px;
            border: 1px solid rgba(255, 255, 255, .1);
            background: rgba(148, 178, 255, .06);
            color: var(--text-title);
            font-size: 1.1rem;
            cursor: pointer;
        }
        .mobile-menu {
            display: none;
            position: fixed;
            top: 60px;
            left: 0;
            right: 0;
            z-index: 99;
            padding: 16px 20px 24px;
            background: rgba(6, 11, 31, .96);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid rgba(255, 255, 255, .08);
        }
        .mobile-menu a {
            display: block;
            padding: 13px 14px;
            border-radius: 10px;
            color: var(--text-body);
            font-weight: 600;
        }
        .mobile-menu a:hover {
            background: rgba(47, 216, 255, .08);
            color: var(--primary);
        }
        @media (max-width: 1024px) {
            .header-search {
                width: 160px;
            }
            .nav-link {
                padding: 0 12px;
                font-size: .88rem;
            }
        }
        @media (max-width: 820px) {
            .site-header {
                height: 60px;
            }
            .header-inner {
                height: 60px;
            }
            .nav-links,
            .header-search,
            .header-actions .btn-ghost {
                display: none;
            }
            .mobile-menu-btn {
                display: inline-flex;
            }
        }
        .cat-hero {
            position: relative;
            padding: 90px 0 76px;
            background-size: cover;
            background-position: center;
            background-color: #081126;
            overflow: hidden;
        }
        .cat-hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(6, 11, 31, .74) 0%, rgba(6, 11, 31, .9) 100%);
            z-index: 1;
        }
        .cat-hero .container {
            position: relative;
            z-index: 2;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 14px;
            border-radius: 999px;
            background: rgba(255, 168, 62, .1);
            border: 1px solid rgba(255, 168, 62, .25);
            color: #FFE1B8;
            font-size: .82rem;
            font-weight: 700;
            letter-spacing: .05em;
        }
        .hero-badge i {
            color: var(--warning);
        }
        .cat-hero h1 {
            max-width: 820px;
            margin-top: 20px;
            font-size: clamp(2rem, 4vw, 3.2rem);
            font-weight: 900;
            letter-spacing: .01em;
        }
        .cat-hero h1 .text-gradient {
            background: linear-gradient(100deg, #2FD8FF, #1EE0A2);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
        }
        .cat-hero .lead {
            max-width: 760px;
            margin-top: 22px;
            font-size: 1.08rem;
            line-height: 1.8;
            color: #B8C7E8;
        }
        .hero-status {
            margin-top: 34px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 14px;
        }
        .hero-status .status-chip {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 9px 16px;
            border-radius: 999px;
            background: rgba(148, 178, 255, .08);
            border: 1px solid rgba(255, 255, 255, .1);
            color: var(--text-title);
            font-size: .86rem;
            font-weight: 600;
        }
        .status-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--success);
            box-shadow: 0 0 10px var(--success);
        }
        .status-dot.warning {
            background: var(--warning);
            box-shadow: 0 0 10px var(--warning);
        }
        .section {
            padding: 88px 0;
        }
        .section-alt {
            background: rgba(148, 178, 255, .03);
        }
        .section-head {
            text-align: center;
            max-width: 840px;
            margin: 0 auto 52px;
        }
        .section-head .eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: .84rem;
            font-weight: 700;
            letter-spacing: .08em;
            color: var(--primary);
            text-transform: uppercase;
        }
        .section-head h2 {
            margin: 12px 0 16px;
            font-size: clamp(1.5rem, 2.4vw, 2rem);
            font-weight: 900;
        }
        .section-head p {
            font-size: 1rem;
            color: var(--text-muted);
            margin: 0;
        }
        .risk-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        @media (max-width: 1024px) {
            .risk-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 620px) {
            .risk-grid {
                grid-template-columns: 1fr;
            }
        }
        .glass-card {
            position: relative;
            border-radius: var(--radius-lg);
            padding: 30px 24px;
            background: var(--glass-bg);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border: 1px solid var(--border-glass);
            box-shadow: var(--shadow-card);
            transition: transform .2s ease, border-color .2s ease;
        }
        .glass-card:hover {
            transform: translateY(-5px);
            border-color: rgba(47, 216, 255, .28);
        }
        .icon-cube {
            width: 50px;
            height: 50px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 14px;
            font-size: 1.2rem;
            color: var(--primary);
            background: rgba(47, 216, 255, .1);
            border: 1px solid rgba(47, 216, 255, .18);
            margin-bottom: 18px;
        }
        .icon-cube.warning {
            color: var(--warning);
            background: rgba(255, 168, 62, .1);
            border-color: rgba(255, 168, 62, .18);
        }
        .icon-cube.danger {
            color: var(--danger);
            background: rgba(255, 93, 108, .1);
            border-color: rgba(255, 93, 108, .18);
        }
        .icon-cube.success {
            color: var(--success);
            background: rgba(30, 224, 162, .1);
            border-color: rgba(30, 224, 162, .18);
        }
        .glass-card h3 {
            font-size: 1.15rem;
            margin: 0 0 12px;
        }
        .glass-card p {
            font-size: .94rem;
            line-height: 1.8;
            color: var(--text-muted);
            margin: 0;
        }
        .verify-section {
            background-image: url('/assets/images/backpic/back-3.webp');
            background-size: cover;
            background-position: center;
            background-color: #091126;
        }
        .verify-section .section-inner-mask {
            background: rgba(6, 11, 31, .78);
            padding: 88px 0;
        }
        .step-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 22px;
            counter-reset: step;
        }
        @media (max-width: 1024px) {
            .step-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 620px) {
            .step-grid {
                grid-template-columns: 1fr;
            }
        }
        .step-card {
            position: relative;
            background: rgba(13, 21, 48, .76);
            border: 1px solid rgba(255, 255, 255, .08);
            border-radius: var(--radius-lg);
            padding: 30px 22px 26px;
            box-shadow: var(--shadow-card);
        }
        .step-card::before {
            counter-increment: step;
            content: counter(step);
            position: absolute;
            top: 24px;
            right: 22px;
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: rgba(47, 216, 255, .1);
            border: 1px solid rgba(47, 216, 255, .22);
            color: var(--primary);
            font-weight: 900;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
        }
        .step-card h3 {
            margin-top: 6px;
            font-size: 1.1rem;
            padding-right: 42px;
        }
        .step-card p {
            margin: 12px 0 0;
            font-size: .92rem;
            color: var(--text-muted);
        }
        .scenario-layout {
            display: grid;
            grid-template-columns: .85fr 1.1fr;
            gap: 44px;
            align-items: center;
        }
        @media (max-width: 980px) {
            .scenario-layout {
                grid-template-columns: 1fr;
            }
        }
        .scenario-list {
            margin: 0;
            padding: 0;
            list-style: none;
        }
        .scenario-list li {
            display: flex;
            align-items: flex-start;
            gap: 14px;
            padding: 18px 0;
            border-bottom: 1px solid rgba(255, 255, 255, .06);
        }
        .scenario-list li:last-child {
            border-bottom: none;
        }
        .scenario-icon {
            width: 40px;
            height: 40px;
            flex-shrink: 0;
            border-radius: 11px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            background: rgba(47, 216, 255, .08);
            border: 1px solid rgba(47, 216, 255, .15);
            font-size: .9rem;
        }
        .scenario-list h3 {
            margin: 0 0 4px;
            font-size: 1.02rem;
            font-weight: 700;
        }
        .scenario-list p {
            margin: 0;
            color: var(--text-muted);
            font-size: .92rem;
        }
        .scenario-media {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            border: 1px solid rgba(255, 255, 255, .08);
            position: relative;
        }
        .scenario-media img {
            width: 100%;
            height: 320px;
            object-fit: cover;
        }
        .scenario-media .media-caption {
            position: absolute;
            left: 0;
            right: 0;
            bottom: 0;
            padding: 50px 24px 18px;
            background: linear-gradient(transparent, rgba(6, 11, 31, .95));
            color: var(--text-title);
            font-size: .88rem;
            font-weight: 600;
        }
        .rule-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 22px;
            margin-bottom: 42px;
        }
        @media (max-width: 980px) {
            .rule-grid {
                grid-template-columns: 1fr;
            }
        }
        .rule-item {
            padding: 28px;
            border-radius: var(--radius-lg);
            background: rgba(148, 178, 255, .04);
            border: 1px solid rgba(255, 255, 255, .07);
            transition: border-color .2s ease;
        }
        .rule-item:hover {
            border-color: rgba(47, 216, 255, .24);
        }
        .rule-item .rule-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: .78rem;
            font-weight: 700;
            letter-spacing: .04em;
            color: var(--text-muted);
            padding: 5px 11px;
            border-radius: 999px;
            background: rgba(255, 255, 255, .05);
            border: 1px solid rgba(255, 255, 255, .08);
            margin-bottom: 14px;
        }
        .rule-item .rule-tag i {
            color: var(--success);
            font-size: .75rem;
        }
        .rule-item h3 {
            font-size: 1.1rem;
            margin-bottom: 10px;
        }
        .rule-item p {
            margin: 0;
            color: var(--text-muted);
            font-size: .94rem;
        }
        .faq-wrap {
            max-width: 900px;
            margin: 0 auto;
        }
        details.faq-item {
            background: rgba(148, 178, 255, .05);
            border: 1px solid rgba(255, 255, 255, .08);
            border-radius: 16px;
            margin-bottom: 14px;
            padding: 0 22px;
            overflow: hidden;
            transition: background .2s ease, border-color .2s ease;
        }
        details.faq-item[open] {
            background: rgba(148, 178, 255, .08);
            border-color: rgba(47, 216, 255, .22);
        }
        details.faq-item summary {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            min-height: 60px;
            font-weight: 700;
            color: var(--text-title);
            list-style: none;
            cursor: pointer;
            font-size: 1rem;
        }
        details.faq-item summary::-webkit-details-marker {
            display: none;
        }
        details.faq-item summary .faq-plus {
            width: 26px;
            height: 26px;
            border-radius: 50%;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border: 1px solid rgba(47, 216, 255, .3);
            color: var(--primary);
            font-size: .85rem;
            flex-shrink: 0;
            transition: transform .2s ease, background .2s ease;
        }
        details.faq-item[open] summary .faq-plus {
            transform: rotate(45deg);
            background: rgba(47, 216, 255, .1);
        }
        details.faq-item .faq-answer {
            padding: 0 0 22px;
            color: var(--text-muted);
            font-size: .95rem;
            line-height: 1.85;
        }
        .cta-band {
            position: relative;
            overflow: hidden;
            border-radius: 26px;
            padding: 50px;
            background: rgba(13, 21, 48, .85);
            border: 1px solid rgba(255, 255, 255, .08);
            display: grid;
            grid-template-columns: 1.05fr .95fr;
            gap: 54px;
            align-items: center;
            box-shadow: var(--shadow-card);
        }
        @media (max-width: 900px) {
            .cta-band {
                grid-template-columns: 1fr;
                padding: 28px;
            }
        }
        .cta-band::after {
            content: "";
            position: absolute;
            width: 360px;
            height: 360px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(47, 216, 255, .14), transparent 70%);
            right: -100px;
            top: -100px;
            pointer-events: none;
        }
        .form-shell {
            position: relative;
            z-index: 2;
        }
        .form-shell h2 {
            font-size: clamp(1.3rem, 2vw, 1.65rem);
            margin: 0 0 12px;
        }
        .form-shell>p {
            margin: 0 0 24px;
            color: var(--text-muted);
            font-size: .95rem;
        }
        .form-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 14px;
        }
        .form-grid .full {
            grid-column: 1 / -1;
        }
        .field-label {
            display: block;
            font-size: .82rem;
            font-weight: 600;
            color: var(--text-muted);
            margin-bottom: 6px;
        }
        .field-input,
        .field-textarea {
            width: 100%;
            background: rgba(6, 11, 31, .7);
            border: 1px solid rgba(255, 255, 255, .1);
            border-radius: 10px;
            color: var(--text-title);
            padding: 11px 14px;
            font-size: .94rem;
            transition: border-color .2s ease, box-shadow .2s ease;
        }
        .field-input::placeholder,
        .field-textarea::placeholder {
            color: var(--text-faint);
        }
        .field-input:focus,
        .field-textarea:focus {
            outline: none;
            border-color: rgba(47, 216, 255, .55);
            box-shadow: 0 0 0 3px rgba(47, 216, 255, .1);
        }
        .field-textarea {
            min-height: 110px;
            resize: vertical;
        }
        .submit-tip {
            display: flex;
            gap: 8px;
            background: rgba(255, 168, 62, .08);
            border: 1px solid rgba(255, 168, 62, .18);
            color: #FFDFAE;
            border-radius: 12px;
            padding: 12px 16px;
            font-size: .88rem;
            line-height: 1.65;
            margin-top: 17px;
        }
        .base-block {
            position: relative;
            z-index: 2;
        }
        .base-block i {
            color: var(--warning);
            margin-right: 10px;
        }
        .base-block h3 {
            color: var(--text-title);
            font-size: 1.2rem;
            margin: 18px 0 14px;
        }
        .base-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            max-width: 440px;
        }
        .base-list span {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            padding: 12px 14px;
            border-radius: 12px;
            background: rgba(148, 178, 255, .05);
            border: 1px solid rgba(255, 255, 255, .07);
            font-size: .92rem;
            color: var(--text-muted);
        }
        .base-list i {
            margin-top: 3px;
            color: var(--success);
            width: 16px;
        }
        .site-footer {
            background: #050A1B;
            border-top: 1px solid rgba(255, 255, 255, .07);
            padding: 60px 0 28px;
            margin-top: 60px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr .8fr 1fr;
            gap: 48px;
            padding-bottom: 38px;
            border-bottom: 1px solid rgba(255, 255, 255, .07);
        }
        @media (max-width: 980px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
        }
        .footer-brand p {
            margin: 14px 0 0;
            font-size: .92rem;
            color: var(--text-muted);
            max-width: 420px;
        }
        .site-footer h4 {
            font-size: .95rem;
            color: var(--text-title);
            margin: 0 0 16px;
        }
        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer-links a {
            color: var(--text-muted);
            font-size: .92rem;
        }
        .footer-links a:hover {
            color: var(--primary);
        }
        .footer-safe {
            color: var(--text-muted);
            font-size: .88rem;
            line-height: 1.8;
            background: rgba(255, 93, 108, .05);
            border: 1px solid rgba(255, 93, 108, .12);
            border-radius: 14px;
            padding: 16px;
        }
        .footer-safe strong {
            color: #FF8E97;
        }
        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            padding-top: 24px;
            color: var(--text-faint);
            font-size: .84rem;
            flex-wrap: wrap;
        }
        @media (max-width: 520px) {
            .section {
                padding: 64px 0;
            }
            .cat-hero {
                padding: 55px 0 48px;
                text-align: center;
            }
            .cat-hero .lead {
                margin-left: auto;
                margin-right: auto;
            }
            .cat-hero .status-chip {
                font-size: .8rem;
                padding: 7px 12px;
            }
            .scenario-layout {
                gap: 26px;
            }
            .scenario-media img {
                height: 240px;
            }
            .rule-grid {
                gap: 16px;
            }
            .cta-band {
                padding: 20px;
            }
            .form-grid {
                grid-template-columns: 1fr;
            }
            .form-grid .full {
                grid-column: auto;
            }
            .footer-bottom {
                justify-content: center;
                text-align: center;
            }
        }

/* roulang page: category4 */
:root{
  --bg:#060B1F;
  --surface:#0B1530;
  --surface-2:#111D3D;
  --surface-3:#16244A;
  --line:rgba(255,255,255,.07);
  --line-strong:rgba(255,255,255,.14);
  --text:#F0F5FF;
  --body:#C5D1EB;
  --muted:#8698BC;
  --faint:#5F7096;
  --accent:#2FD8FF;
  --green:#1EE0A2;
  --orange:#FFA83E;
  --danger:#FF5D6C;
  --radius-lg:20px;
  --radius-md:14px;
  --shadow:0 18px 40px rgba(0,0,0,.25);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei UI","Microsoft YaHei","Noto Sans CJK SC",sans-serif;
  color:var(--body);
  font-size:16px;
  line-height:1.75;
  background:
    radial-gradient(1100px 520px at 86% -120px, rgba(47,216,255,.10), transparent 62%),
    radial-gradient(820px 420px at -10% 18%, rgba(30,224,162,.05), transparent 55%),
    var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{text-decoration:none;color:inherit}
button,input,select,textarea{font:inherit;color:inherit}
button{background:none;border:0;cursor:pointer;font-family:inherit}
h1,h2,h3,h4,h5{font-weight:800;color:var(--text);line-height:1.3;font-feature-settings:"tnum" 1}
::selection{background:rgba(47,216,255,.32);color:#f8feff}
.container{max-width:1280px;margin:0 auto;padding:0 32px}
.section{padding:88px 0}
.section-eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--accent);font-size:.86rem;letter-spacing:.16em;font-weight:700;margin-bottom:12px}
.section-eyebrow::before{content:"";width:22px;height:2px;background:linear-gradient(90deg,var(--accent),transparent);border-radius:2px}
.section-head{max-width:860px;margin-bottom:40px}
.section-head h2{font-size:clamp(1.6rem,2.6vw,2.05rem);letter-spacing:-.01em;margin-bottom:14px}
.section-head p{color:var(--muted);font-size:1.02rem;max-width:720px}
.muted{color:var(--muted)}
.glass-card{background:rgba(148,178,255,.06);border:1px solid rgba(255,255,255,.09);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-radius:var(--radius-lg);box-shadow:var(--shadow)}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 22px;border-radius:999px;font-weight:800;font-size:.98rem;border:1px solid transparent;transition:all .22s ease;outline:none;white-space:nowrap}
.btn-primary{
  background:linear-gradient(135deg,#2FD8FF,#1EE0A2);
  color:#04242E;
  border-color:rgba(255,255,255,.22);
  box-shadow:0 8px 24px rgba(47,216,255,.26);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 32px rgba(47,216,255,.38);filter:brightness(1.06)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{
  background:rgba(47,216,255,.06);
  border-color:rgba(47,216,255,.28);
  color:#DDF6FF;
}
.btn-ghost:hover{transform:translateY(-2px);border-color:rgba(47,216,255,.65);background:rgba(47,216,255,.12)}
.btn-ghost:active{transform:translateY(0)}
/* header */
.site-header{position:sticky;top:0;z-index:50;height:72px;background:rgba(6,11,31,.78);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid rgba(255,255,255,.05)}
.header-inner{max-width:1280px;margin:0 auto;height:100%;padding:0 32px;display:flex;align-items:center;gap:20px;position:relative}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;line-height:1}
.brand-logo{display:flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:12px;font-size:1.45rem;font-weight:900;background:linear-gradient(145deg,#2FD8FF 8%,#1EE0A2 82%);color:#03242E;box-shadow:0 0 0 1px rgba(255,255,255,.16),0 8px 20px rgba(47,216,255,.32);letter-spacing:0}
.brand-text{font-size:1.08rem;font-weight:900;color:#f5f9ff;white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:6px;flex:1;min-width:0;margin-left:14px;flex-wrap:nowrap}
.nav-link{padding:9px 13px;border-radius:10px;font-size:.98rem;font-weight:600;color:#D6E2F8;transition:.2s;white-space:nowrap}
.nav-link:hover{color:#fff;background:rgba(47,216,255,.08)}
.nav-link.active{color:var(--accent);background:rgba(47,216,255,.1);box-shadow:inset 0 0 0 1px rgba(47,216,255,.12)}
.nav-link{margin:0 2px}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:10px}
.search-wrap{display:flex;align-items:center;gap:4px;width:210px;height:42px;background:rgba(255,255,255,.055);border:1px solid var(--line);border-radius:999px;padding:0 8px 0 13px;transition:border-color .2s,background .2s}
.search-wrap:focus-within{background:rgba(255,255,255,.1);border-color:rgba(47,216,255,.55);box-shadow:0 0 0 3px rgba(47,216,255,.12)}
.search-wrap svg{flex:0 0 18px;color:var(--muted)}
.search-input{width:100%;background:transparent;border:0;outline:none;color:var(--text);font-size:.91rem;letter-spacing:.02em}
.search-input::placeholder{color:var(--faint);font-size:.89rem}
.header-cta{min-height:40px;padding:0 18px;font-size:.93rem}
.mobile-toggle{display:none;width:42px;height:42px;border-radius:10px;align-items:center;justify-content:center;border:1px solid var(--line);color:var(--text)}
.mobile-toggle:hover{background:rgba(47,216,255,.1);border-color:rgba(47,216,255,.4)}
.mobile-toggle svg{width:20px;height:20px}
/* hero */
.hero-page{
  position:relative;
  padding:96px 0 88px;
  background:linear-gradient(100deg, rgba(4,8,24,.96) 8%, rgba(6,13,33,.86) 50%, rgba(6,13,33,.68) 92%), url('/assets/images/backpic/back-1.png') center 30%/cover no-repeat;
  border-bottom:1px solid rgba(255,255,255,.04);
}
.hero-page::after{content:"";position:absolute;left:0;right:0;bottom:-1px;height:80px;pointer-events:none;background:linear-gradient(180deg,transparent,#060B1F)}
.hero-page .container{position:relative;z-index:2}
.hero-layout{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:48px;align-items:center}
.hero-copy{max-width:680px}
.hero-copy h1{font-size:clamp(2rem,4vw,3rem);line-height:1.18;letter-spacing:.01em;font-weight:900;color:#f5f9ff;margin:16px 0 18px}
.category-chip{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;background:rgba(47,216,255,.1);border:1px solid rgba(47,216,255,.24);color:var(--accent);font-size:.85rem;font-weight:700;letter-spacing:.08em}
.lead{font-size:1.12rem;line-height:1.9;color:#d3def5;margin-bottom:28px}
.hero-actions{display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.hero-hints{display:flex;align-items:center;gap:18px;margin-top:28px;color:var(--muted);font-size:.9rem;flex-wrap:wrap}
.hero-hint{display:inline-flex;align-items:center;gap:7px}
.hero-hint svg{width:16px;height:16px;color:var(--green)}
.hero-panel{padding:26px;border-radius:22px}
.panel-title{display:flex;align-items:center;gap:10px;font-weight:800;color:var(--text);font-size:.98rem;margin-bottom:18px}
.pulse-dot{width:9px;height:9px;border-radius:50%;background:var(--green);box-shadow:0 0 0 0 rgba(30,224,162,.6);animation:pulse 2s infinite}
@keyframes pulse{70%{box-shadow:0 0 0 8px rgba(30,224,162,0)}100%{box-shadow:0 0 0 0 rgba(30,224,162,0)}}
.panel-list{display:flex;flex-direction:column;gap:14px;margin:4px 0 20px}
.panel-cell{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:12px 14px;background:rgba(148,178,255,.05);border:1px solid rgba(255,255,255,.07);border-radius:12px}
.panel-cell .label{display:block;color:var(--muted);font-size:.86rem;line-height:1.35}
.panel-cell strong{color:#eef4ff;font-size:1rem;font-weight:800;text-align:right}
.ok-text{color:var(--green);font-weight:800;font-size:1.05rem}
.panel-note{font-size:.85rem;color:var(--muted);line-height:1.6;background:rgba(47,216,255,.04);border:1px dashed rgba(47,216,255,.2);padding:12px;border-radius:12px;margin-bottom:18px}
/* metrics */
.metric-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.metric-card{padding:22px 24px;border-radius:16px;background:linear-gradient(180deg,rgba(148,178,255,.075),rgba(148,178,255,.03));border:1px solid var(--line);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);transition:.25s}
.metric-card:hover{border-color:rgba(47,216,255,.36);transform:translateY(-3px);box-shadow:0 16px 34px rgba(0,0,0,.35)}
.metric-num{font-size:2.2rem;font-weight:900;letter-spacing:-.02em;margin-bottom:2px;background:linear-gradient(120deg,#DDFAFF,var(--accent) 70%);-webkit-background-clip:text;background-clip:text;color:transparent;line-height:1.1}
.metric-label{color:var(--muted);font-size:.94rem}
.metric-tag{display:inline-block;margin-top:8px;font-size:.75rem;padding:2px 9px;border-radius:999px;background:rgba(30,224,162,.1);border:1px solid rgba(30,224,162,.2);color:var(--green)}
.metric-tag.warn{background:rgba(255,168,62,.1);border-color:rgba(255,168,62,.24);color:var(--orange)}
/* kind cards */
.kind-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.kind-card{display:flex;flex-direction:column;background:rgba(12,20,43,.9);border:1px solid var(--line);border-radius:20px;overflow:hidden;transition:.25s}
.kind-card:hover{transform:translateY(-4px);border-color:rgba(47,216,255,.36);box-shadow:0 18px 44px rgba(0,0,0,.3)}
.kind-media{height:180px;position:relative}
.kind-media img{width:100%;height:100%;object-fit:cover;object-position:center}
.kind-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(6,12,30,.08),rgba(6,12,30,.62))}
.kind-tag{position:absolute;left:16px;top:14px;z-index:2;display:inline-flex;align-items:center;gap:6px;padding:5px 11px;border-radius:999px;background:rgba(5,10,24,.75);border:1px solid rgba(255,255,255,.12);color:#eaf4ff;font-size:.78rem;backdrop-filter:blur(8px)}
.kind-body{padding:20px 22px 24px;display:flex;flex-direction:column;flex:1}
.kind-body h3{margin-bottom:8px;font-size:1.16rem}
.kind-body p{color:var(--muted);font-size:.95rem;flex:1}
.kind-body .more{display:inline-flex;align-items:center;gap:6px;margin-top:16px;font-size:.88rem;font-weight:800;color:var(--accent)}
.kind-body .more:hover{color:#a8f0ff}
/* timeline */
.timeline-section{background:linear-gradient(180deg,rgba(255,255,255,.012),rgba(13,21,48,.42))}
.timeline-wrap{display:grid;grid-template-columns:1fr;gap:0;max-width:900px}
.timeline{position:relative;list-style:none}
.timeline::before{content:"";position:absolute;left:9px;top:14px;bottom:14px;width:2px;background:linear-gradient(180deg,rgba(47,216,255,.75),rgba(47,216,255,.06))}
.timeline-item{position:relative;padding-left:46px;margin-bottom:22px}
.timeline-item::before{content:"";position:absolute;left:2px;top:21px;width:16px;height:16px;border-radius:50%;background:#071227;border:3px solid var(--accent);box-shadow:0 0 0 4px rgba(47,216,255,.15)}
.log-card{background:rgba(148,178,255,.055);border:1px solid rgba(255,255,255,.07);border-radius:18px;padding:18px 20px;transition:.22s}
.log-card:hover{border-color:rgba(47,216,255,.3);background:rgba(47,216,255,.06);transform:translateY(-1px)}
.log-meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:6px}
.log-date{font-size:.83rem;color:var(--muted);letter-spacing:.04em}
.log-label{padding:2px 10px;border-radius:999px;font-size:.75rem;font-weight:700}
.log-label.primary{background:rgba(47,216,255,.1);border:1px solid rgba(47,216,255,.2);color:var(--accent)}
.log-label.green{background:rgba(30,224,162,.1);border:1px solid rgba(30,224,162,.24);color:var(--green)}
.log-label.orange{background:rgba(255,168,62,.1);border:1px solid rgba(255,168,62,.24);color:var(--orange)}
.log-card h3{font-size:1.05rem;font-weight:800;margin-bottom:6px}
.log-card p{font-size:.93rem;color:var(--muted);line-height:1.8}
.log-status{display:inline-block;margin-top:8px;font-size:.8rem;color:#D8E6FF;background:rgba(47,216,255,.08);padding:3px 10px;border-radius:8px}
/* process */
.process-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.process-step{position:relative;padding:22px 20px;background:rgba(15,22,45,.8);border:1px solid var(--line);border-radius:18px;overflow:hidden}
.process-step::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:linear-gradient(180deg,var(--accent),transparent)}
.step-num{display:flex;align-items:center;justify-content:center;width:32px;height:32px;border-radius:10px;font-weight:900;font-size:1rem;color:#04242e;background:linear-gradient(135deg,#2FD8FF,#1EE0A2);margin-bottom:14px}
.process-step h3{font-size:1rem;margin-bottom:6px}
.process-step p{font-size:.9rem;color:var(--muted)}
/* faq */
.faq-list{max-width:900px;margin:0 auto}
.faq-item{margin-bottom:14px;background:rgba(148,178,255,.05);border:1px solid var(--line);border-radius:16px;overflow:hidden;transition:.2s}
.faq-item.open{border-color:rgba(47,216,255,.3);background:rgba(47,216,255,.06)}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:17px 20px;text-align:left;color:var(--text);font-weight:700;font-size:1rem;cursor:pointer;transition:.2s}
.faq-q:hover{color:#E8F9FF}
.faq-icon{flex:0 0 28px;height:28px;border:1px solid rgba(255,255,255,.15);border-radius:50%;display:inline-flex;align-items:center;justify-content:center;font-size:1.2rem;transition:.25s;color:#C9E3FF}
.faq-item.open .faq-icon{background:rgba(47,216,255,.16);transform:rotate(45deg);color:#2FD8FF;border-color:rgba(47,216,255,.36)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease;padding:0 22px}
.faq-item.open .faq-a{padding-bottom:20px}
.faq-a p{color:var(--muted);font-size:.96rem;line-height:1.9}
/* feedback */
.feedback-section{padding:90px 0;position:relative;overflow:hidden}
.feedback-section::before{content:"";position:absolute;inset:0;background:radial-gradient(680px 280px at 12% 80%,rgba(47,216,255,.09),transparent 66%)}
.feedback-grid{display:grid;grid-template-columns:minmax(0,6fr) minmax(0,5fr);gap:38px;align-items:start;position:relative;z-index:1}
.feedback-info .feedback-card{border-radius:20px;background:rgba(15,23,49,.65);border:1px solid rgba(255,255,255,.08);padding:24px}
.feedback-info h3{color:var(--text);font-size:1rem;margin-bottom:14px}
.feedback-list{gap:12px;display:flex;flex-direction:column}
.feedback-list li{list-style:none;display:flex;align-items:flex-start;gap:9px;font-size:.92rem;color:var(--body)}
.feedback-list li::before{content:"✓";display:inline-flex;align-items:center;justify-content:center;min-width:20px;height:20px;border-radius:50%;background:rgba(30,224,162,.16);border:1px solid rgba(30,224,162,.3);color:var(--green);font-size:.75rem;font-weight:900;margin-top:4px}
.form-panel{background:rgba(13,20,39,.85);backdrop-filter:blur(10px);border:1px solid rgba(255,255,255,.08);border-radius:22px;padding:28px}
.form-panel h2{font-size:1.2rem;margin-bottom:4px}
.form-panel>p{color:var(--muted);font-size:.92rem;margin-bottom:20px}
.form-control{width:100%;background:rgba(5,10,24,.55);border:1px solid var(--line);border-radius:14px;padding:11px 14px;color:var(--text);font-size:.94rem;outline:none;transition:.2s;line-height:1.6}
.form-control:focus{border-color:rgba(47,216,255,.6);box-shadow:0 0 0 3px rgba(47,216,255,.12);background:rgba(5,10,24,.75)}
select.form-control{appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%238698BC' d='M6 8L0 0h12z'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 14px center;padding-right:36px}
textarea.form-control{min-height:112px;resize:vertical}
.form-label{display:block;font-size:.86rem;color:#d0dcf5;font-weight:600;margin:0 0 7px}
.form-msg{display:none;align-items:center;gap:8px;padding:10px 14px;border-radius:10px;font-size:.88rem;margin-top:14px}
.form-msg.success{display:flex;background:rgba(30,224,162,.1);border:1px solid rgba(30,224,162,.24);color:var(--green)}
/* footer */
.site-footer{background:#050a1b;border-top:1px solid rgba(255,255,255,.06);padding:60px 0 26px;margin-top:20px}
.footer-grid{display:grid;grid-template-columns:2.4fr 1fr 1.2fr;gap:38px}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{color:var(--muted);font-size:.92rem;line-height:1.9;max-width:360px}
.site-footer h4{color:var(--text);font-size:.95rem;font-weight:700;margin-bottom:14px;letter-spacing:.02em}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{color:var(--muted);font-size:.91rem;transition:.2s}
.footer-links a:hover{color:var(--accent);padding-left:3px}
.footer-safe{color:var(--muted);font-size:.87rem;padding:14px;border:1px solid rgba(255,255,255,.06);border-radius:12px;background:rgba(148,178,255,.04)}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:14px;margin-top:44px;padding-top:24px;border-top:1px solid rgba(255,255,255,.06);color:var(--faint);font-size:.85rem;flex-wrap:wrap}
.footer-bottom a{color:var(--muted)}
@media(min-width:1025px){
  #navLinks{display:flex!important}
}
@media(max-width:1280px){
  .container{padding:0 26px}
  .header-inner{padding:0 26px}
}
@media(max-width:1024px){
  .section{padding:70px 0}
  .container{padding:0 20px}
  .header-inner{padding:0 20px;gap:10px}
  .site-header{height:64px}
  .brand-text{font-size:1rem}
  .nav-links{
    display:flex;flex-direction:column;align-items:stretch;gap:0;
    position:fixed;top:64px;left:0;right:0;margin:0;padding:12px 20px 18px;
    background:rgba(6,12,28,.97);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
    border-bottom:1px solid rgba(255,255,255,.09);box-shadow:0 20px 34px rgba(0,0,0,.25);
    transform:translateY(-120%);opacity:0;pointer-events:none;transition:transform .25s ease,opacity .22s;
    z-index:49;
  }
  .nav-open .nav-links{transform:translateY(0);opacity:1;pointer-events:auto}
  .nav-link{padding:13px 10px;border-bottom:1px solid rgba(255,255,255,.055);border-radius:0;font-size:1rem}
  .nav-link.active{background:transparent;box-shadow:none;border-bottom-color:rgba(47,216,255,.35)}
  .header-search-wrap,.header-cta{display:none!important}
  .mobile-toggle{display:inline-flex;margin-left:auto}
  .hero-page{padding:74px 0 64px}
  .hero-layout{grid-template-columns:1fr;gap:34px}
  .hero-copy h1{font-size:clamp(1.9rem,5vw,2.75rem)}
  .metric-grid{grid-template-columns:repeat(2,1fr)}
  .kind-grid{grid-template-columns:1fr 1fr}
  .process-grid{grid-template-columns:repeat(2,1fr)}
  .feedback-grid{grid-template-columns:1fr;gap:28px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
  .footer-grid>div:first-child{grid-column:1/-1}
}
@media(max-width:640px){
  .metric-grid{grid-template-columns:1fr 1fr}
  .kind-grid{grid-template-columns:1fr}
  .process-grid{grid-template-columns:1fr}
  .hero-actions .btn{width:100%}
  .timeline-item{padding-left:40px}
  .log-card{padding:15px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .footer-bottom span{font-size:.8rem}
  .hero-copy h1{font-size:1.85rem}
  .metric-card{padding:16px 16px}
}