/* roulang page: index */
:root {
      --bg: #071019;
      --bg-2: #0b1523;
      --bg-3: #0f1d31;
      --panel: #111d2d;
      --panel-2: #16253a;
      --line: rgba(170, 216, 255, .12);
      --line-strong: rgba(94, 234, 212, .28);
      --text: #edf5ff;
      --muted: #9fb2c9;
      --soft: #6f84a0;
      --primary: #34d8ff;
      --primary-2: #6d7cff;
      --accent: #68f0b2;
      --warn: #ffb84d;
      --danger: #ff6b7a;
      --shadow: 0 18px 40px rgba(0, 0, 0, .38);
      --shadow-soft: 0 8px 22px rgba(0, 0, 0, .22);
      --radius: 16px;
      --radius-sm: 12px;
      --radius-lg: 22px;
      --space: clamp(16px, 2vw, 28px);
      --space-lg: clamp(24px, 4vw, 56px);
      --header-h: 78px;
      --max: 1240px;
    }

    *, *::before, *::after { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    body {
      margin: 0;
      font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
      color: var(--text);
      line-height: 1.72;
      background:
        radial-gradient(circle at top left, rgba(52, 216, 255, .15), transparent 28%),
        radial-gradient(circle at top right, rgba(109, 124, 255, .16), transparent 32%),
        linear-gradient(180deg, #050b12 0%, #07101a 36%, #0b1220 100%);
      min-height: 100vh;
      text-rendering: optimizeLegibility;
      -webkit-font-smoothing: antialiased;
      overflow-x: hidden;
    }
    body::before {
      content: "";
      position: fixed;
      inset: 0;
      pointer-events: none;
      background-image: linear-gradient(rgba(255,255,255,.02) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.02) 1px, transparent 1px);
      background-size: 60px 60px;
      mask-image: linear-gradient(180deg, rgba(0,0,0,.5), rgba(0,0,0,.12));
      opacity: .45;
      z-index: 0;
    }
    a { color: inherit; text-decoration: none; }
    img { max-width: 100%; display: block; }
    button, input, textarea, select { font: inherit; }
    button { border: 0; cursor: pointer; }
    input, textarea {
      width: 100%;
      border: 1px solid var(--line);
      background: rgba(8, 15, 25, .8);
      color: var(--text);
      border-radius: 12px;
      padding: 13px 14px;
      outline: none;
      transition: border-color .22s ease, box-shadow .22s ease, transform .22s ease, background .22s ease;
    }
    input::placeholder, textarea::placeholder { color: #7e91ad; }
    input:focus, textarea:focus {
      border-color: rgba(52, 216, 255, .75);
      box-shadow: 0 0 0 4px rgba(52, 216, 255, .16);
      background: rgba(11, 20, 34, .98);
    }
    ::selection { background: rgba(52, 216, 255, .32); color: #fff; }
    .skip-link {
      position: absolute;
      left: 16px;
      top: -48px;
      z-index: 1000;
      background: var(--primary);
      color: #04111b;
      padding: 10px 14px;
      border-radius: 10px;
      font-weight: 700;
      transition: top .22s ease;
    }
    .skip-link:focus { top: 16px; }
    .container {
      width: min(var(--max), calc(100% - 2 * var(--space)));
      margin: 0 auto;
      position: relative;
      z-index: 1;
    }
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      min-height: 46px;
      padding: 0 18px;
      border-radius: 999px;
      font-weight: 700;
      letter-spacing: .2px;
      transition: transform .22s ease, box-shadow .22s ease, background .22s ease, border-color .22s ease, color .22s ease, opacity .22s ease;
      user-select: none;
      white-space: nowrap;
    }
    .btn:hover { transform: translateY(-2px); }
    .btn:active { transform: translateY(0); }
    .btn-primary {
      color: #02121a;
      background: linear-gradient(135deg, var(--primary) 0%, #8ff7ff 100%);
      box-shadow: 0 12px 26px rgba(52, 216, 255, .22);
    }
    .btn-primary:hover { box-shadow: 0 14px 30px rgba(52, 216, 255, .3); }
    .btn-outline {
      color: var(--text);
      background: rgba(11, 19, 31, .66);
      border: 1px solid rgba(170, 216, 255, .18);
    }
    .btn-outline:hover {
      border-color: rgba(104, 240, 178, .42);
      box-shadow: 0 10px 24px rgba(0, 0, 0, .28), 0 0 0 4px rgba(104, 240, 178, .08);
    }
    .chip,
    .pill {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 8px 12px;
      border-radius: 999px;
      font-size: 13px;
      font-weight: 700;
      border: 1px solid rgba(170, 216, 255, .14);
      background: rgba(12, 21, 34, .74);
      color: #dce9f8;
      transition: transform .22s ease, border-color .22s ease, background .22s ease;
    }
    .chip:hover, .pill:hover { transform: translateY(-1px); border-color: rgba(52, 216, 255, .42); background: rgba(14, 27, 44, .92); }
    .site-header {
      position: sticky;
      top: 0;
      z-index: 50;
      backdrop-filter: none;
      background: rgba(5, 10, 16, .68);
      border-bottom: 1px solid transparent;
      transition: background .25s ease, border-color .25s ease, box-shadow .25s ease, transform .25s ease;
    }
    .site-header.scrolled {
      background: rgba(4, 10, 16, .92);
      border-bottom-color: rgba(170, 216, 255, .12);
      box-shadow: 0 10px 30px rgba(0, 0, 0, .2);
    }
    .header-inner {
      min-height: var(--header-h);
      display: grid;
      grid-template-columns: auto 1fr auto;
      gap: 18px;
      align-items: center;
      padding: 10px 0;
    }
    .brand {
      display: inline-flex;
      align-items: center;
      gap: 12px;
      min-width: 0;
    }
    .brand-mark {
      width: 42px;
      height: 42px;
      border-radius: 14px;
      background:
        linear-gradient(135deg, rgba(52, 216, 255, .94), rgba(109, 124, 255, .9));
      box-shadow: 0 10px 24px rgba(52, 216, 255, .22);
      position: relative;
      flex: 0 0 auto;
    }
    .brand-mark::before,
    .brand-mark::after {
      content: "";
      position: absolute;
      inset: 10px;
      border-radius: 10px;
      border: 1px solid rgba(255,255,255,.46);
      transform: rotate(12deg);
    }
    .brand-mark::after {
      inset: 13px 11px 11px 13px;
      transform: rotate(-18deg);
      opacity: .7;
    }
    .brand-text { min-width: 0; }
    .brand-title {
      display: block;
      font-size: 16px;
      line-height: 1.2;
      font-weight: 900;
      letter-spacing: .3px;
      color: #f4f9ff;
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
    }
    .brand-sub {
      display: block;
      font-size: 12px;
      color: var(--muted);
      margin-top: 2px;
      white-space: nowrap;
      overflow: hidden;
      text-overflow: ellipsis;
    }
    .site-nav {
      justify-self: center;
      width: 100%;
    }
    .site-nav ul {
      margin: 0;
      padding: 0;
      list-style: none;
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 10px;
      flex-wrap: wrap;
    }
    .site-nav a {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 42px;
      padding: 0 16px;
      border-radius: 999px;
      color: #d8e6f4;
      border: 1px solid transparent;
      transition: transform .22s ease, border-color .22s ease, background .22s ease, color .22s ease;
    }
    .site-nav a:hover, .site-nav a:focus-visible {
      transform: translateY(-1px);
      color: #fff;
      border-color: rgba(52, 216, 255, .32);
      background: rgba(12, 21, 34, .8);
      outline: none;
    }
    .site-nav a.active {
      color: #06131c;
      background: linear-gradient(135deg, rgba(52, 216, 255, .95), rgba(104, 240, 178, .88));
      box-shadow: 0 10px 24px rgba(52, 216, 255, .18);
    }
    .header-tools {
      display: flex;
      align-items: center;
      gap: 12px;
      justify-self: end;
    }
    .header-search {
      width: 290px;
      max-width: 36vw;
      position: relative;
    }
    .header-search input {
      padding-left: 42px;
      height: 44px;
      border-radius: 999px;
      background: rgba(10, 18, 29, .78);
    }
    .header-search svg {
      position: absolute;
      left: 14px;
      top: 50%;
      transform: translateY(-50%);
      width: 18px;
      height: 18px;
      color: #89a0bb;
      pointer-events: none;
    }
    .menu-toggle {
      display: none;
      width: 46px;
      height: 46px;
      border-radius: 14px;
      border: 1px solid rgba(170, 216, 255, .16);
      background: rgba(12, 20, 31, .82);
      color: var(--text);
      padding: 0;
      align-items: center;
      justify-content: center;
    }
    .menu-toggle span {
      display: block;
      width: 18px;
      height: 2px;
      border-radius: 99px;
      background: currentColor;
      position: relative;
    }
    .menu-toggle span::before,
    .menu-toggle span::after {
      content: "";
      position: absolute;
      left: 0;
      width: 18px;
      height: 2px;
      border-radius: 99px;
      background: currentColor;
    }
    .menu-toggle span::before { top: -6px; }
    .menu-toggle span::after { top: 6px; }

    .hero {
      position: relative;
      padding: clamp(28px, 5vw, 72px) 0 var(--space-lg);
      overflow: hidden;
    }
    .hero-shell {
      position: relative;
      border: 1px solid rgba(170, 216, 255, .15);
      border-radius: calc(var(--radius-lg) + 4px);
      overflow: hidden;
      background:
        linear-gradient(180deg, rgba(7, 13, 22, .42), rgba(7, 13, 22, .82)),
        url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
      box-shadow: var(--shadow);
    }
    .hero-shell::before {
      content: "";
      position: absolute;
      inset: 0;
      background:
        radial-gradient(circle at 16% 20%, rgba(52, 216, 255, .22), transparent 30%),
        radial-gradient(circle at 86% 18%, rgba(109, 124, 255, .18), transparent 28%),
        linear-gradient(180deg, rgba(4, 10, 17, .12), rgba(4, 10, 17, .7));
    }
    .hero-shell::after {
      content: "";
      position: absolute;
      inset: 0;
      background-image: linear-gradient(rgba(255,255,255,.04) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.04) 1px, transparent 1px);
      background-size: 82px 82px;
      mask-image: linear-gradient(180deg, rgba(0,0,0,.42), rgba(0,0,0,.1));
      opacity: .22;
      pointer-events: none;
    }
    .hero-grid {
      position: relative;
      z-index: 1;
      display: grid;
      grid-template-columns: minmax(0, 1.18fr) minmax(320px, .82fr);
      gap: clamp(20px, 4vw, 48px);
      padding: clamp(26px, 5vw, 58px);
      align-items: center;
    }
    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 7px 12px;
      border-radius: 999px;
      background: rgba(10, 18, 29, .72);
      border: 1px solid rgba(170, 216, 255, .14);
      color: #cfe2f7;
      font-size: 13px;
      font-weight: 700;
    }
    .hero h1 {
      margin: 16px 0 0;
      font-size: clamp(34px, 5vw, 58px);
      line-height: 1.06;
      letter-spacing: -.8px;
      font-weight: 900;
      max-width: 12ch;
    }
    .hero-lead {
      margin: 16px 0 0;
      max-width: 62ch;
      font-size: clamp(16px, 1.45vw, 19px);
      color: #d2deeb;
    }
    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-top: 26px;
    }
    .hero-search {
      margin-top: 18px;
      display: grid;
      grid-template-columns: minmax(0, 1fr) auto;
      gap: 10px;
      max-width: 640px;
    }
    .hero-search input {
      height: 52px;
      border-radius: 14px;
      padding-left: 16px;
      background: rgba(7, 15, 25, .82);
    }
    .hero-search .btn { height: 52px; min-width: 128px; }
    .hero-metrics {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 12px;
      margin-top: 26px;
    }
    .metric {
      padding: 14px 16px;
      border-radius: 16px;
      background: rgba(12, 20, 31, .72);
      border: 1px solid rgba(170, 216, 255, .12);
      box-shadow: var(--shadow-soft);
    }
    .metric strong {
      display: block;
      font-size: clamp(20px, 2vw, 28px);
      line-height: 1.1;
      color: #fff;
      font-variant-numeric: tabular-nums;
    }
    .metric span {
      display: block;
      color: var(--muted);
      font-size: 13px;
      margin-top: 4px;
    }
    .hero-panel {
      position: relative;
      z-index: 1;
      padding: 18px;
      border-radius: 20px;
      background: linear-gradient(180deg, rgba(13, 22, 35, .84), rgba(7, 15, 24, .72));
      border: 1px solid rgba(170, 216, 255, .12);
      box-shadow: var(--shadow-soft);
    }
    .hero-panel .cover {
      overflow: hidden;
      border-radius: 18px;
      border: 1px solid rgba(255,255,255,.08);
      position: relative;
    }
    .hero-panel .cover::after {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(180deg, transparent 0%, rgba(0,0,0,.08) 38%, rgba(0,0,0,.44) 100%);
    }
    .hero-panel .cover img {
      width: 100%;
      aspect-ratio: 16 / 11;
      object-fit: cover;
      transform: scale(1.01);
      transition: transform .45s ease;
    }
    .hero-panel:hover .cover img { transform: scale(1.04); }
    .hero-panel .panel-copy {
      display: grid;
      gap: 14px;
      margin-top: 16px;
    }
    .hero-panel .panel-title {
      margin: 0;
      font-size: 20px;
      line-height: 1.25;
      font-weight: 850;
    }
    .hero-panel .panel-desc {
      margin: 0;
      color: var(--muted);
      font-size: 14px;
    }
    .panel-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
    }
    .panel-footer {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      align-items: center;
      justify-content: space-between;
      padding-top: 8px;
      border-top: 1px solid rgba(170, 216, 255, .12);
    }
    .panel-note {
      color: var(--soft);
      font-size: 13px;
    }
    .mini-score {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 8px 10px;
      border-radius: 12px;
      background: rgba(8, 16, 27, .85);
      border: 1px solid rgba(104, 240, 178, .18);
      color: #dffef1;
      font-size: 13px;
      font-weight: 700;
      font-variant-numeric: tabular-nums;
    }
    .score-dot {
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: var(--accent);
      box-shadow: 0 0 0 5px rgba(104, 240, 178, .12);
    }

    .quick-links {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      padding: 18px 0 8px;
    }
    .section {
      padding: var(--space-lg) 0;
    }
    .section-head {
      display: grid;
      gap: 8px;
      margin-bottom: 20px;
    }
    .section-kicker {
      color: var(--primary);
      font-size: 13px;
      font-weight: 800;
      letter-spacing: .18em;
      text-transform: uppercase;
    }
    .section-title {
      margin: 0;
      font-size: clamp(24px, 3vw, 38px);
      line-height: 1.15;
      letter-spacing: -.4px;
    }
    .section-desc {
      margin: 0;
      max-width: 70ch;
      color: var(--muted);
    }
    .topic-grid {
      display: grid;
      grid-template-columns: repeat(4, minmax(0, 1fr));
      gap: 16px;
    }
    .topic-card,
    .feature-card,
    .score-card,
    .faq-item,
    .cta-panel,
    .footer-card {
      position: relative;
      border-radius: var(--radius);
      border: 1px solid rgba(170, 216, 255, .13);
      background: linear-gradient(180deg, rgba(17, 29, 45, .96), rgba(11, 20, 33, .9));
      box-shadow: var(--shadow-soft);
      overflow: hidden;
    }
    .topic-card {
      padding: 18px;
      min-height: 220px;
      display: flex;
      flex-direction: column;
      gap: 14px;
      transition: transform .22s ease, border-color .22s ease, box-shadow .22s ease;
    }
    .topic-card::before,
    .feature-card::before,
    .score-card::before,
    .cta-panel::before {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(135deg, rgba(52, 216, 255, .08), transparent 42%, rgba(104, 240, 178, .06));
      pointer-events: none;
    }
    .topic-card:hover,
    .feature-card:hover,
    .score-card:hover,
    .faq-item:hover,
    .cta-panel:hover {
      transform: translateY(-3px);
      border-color: rgba(52, 216, 255, .28);
      box-shadow: 0 18px 34px rgba(0, 0, 0, .28), 0 0 0 1px rgba(52, 216, 255, .06);
    }
    .topic-card .card-top {
      display: flex;
      align-items: flex-start;
      justify-content: space-between;
      gap: 14px;
    }
    .topic-card h3,
    .feature-copy h3,
    .cta-panel h3 {
      margin: 0;
      font-size: 20px;
      line-height: 1.28;
    }
    .topic-card p,
    .feature-copy p,
    .score-card p,
    .cta-panel p {
      margin: 0;
      color: var(--muted);
    }
    .topic-stat {
      font-size: 34px;
      line-height: 1;
      font-weight: 900;
      font-variant-numeric: tabular-nums;
      color: #fff;
    }
    .topic-footer {
      margin-top: auto;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 10px;
    }
    .topic-link {
      color: #dbf5ff;
      font-weight: 800;
      display: inline-flex;
      align-items: center;
      gap: 8px;
    }
    .topic-link span {
      display: inline-flex;
      width: 30px;
      height: 30px;
      border-radius: 50%;
      align-items: center;
      justify-content: center;
      background: rgba(52, 216, 255, .12);
      border: 1px solid rgba(52, 216, 255, .22);
    }

    .feature-layout {
      display: grid;
      grid-template-columns: minmax(0, 1.12fr) minmax(0, .88fr);
      gap: 18px;
      align-items: stretch;
    }
    .feature-card {
      display: grid;
      grid-template-columns: minmax(0, .95fr) minmax(260px, 1.05fr);
      min-height: 100%;
    }
    .feature-media {
      position: relative;
      min-height: 340px;
      overflow: hidden;
    }
    .feature-media img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transform: scale(1.01);
      transition: transform .45s ease;
    }
    .feature-card:hover .feature-media img { transform: scale(1.04); }
    .feature-media::after {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(180deg, rgba(3, 8, 14, .12), rgba(3, 8, 14, .64));
    }
    .feature-copy {
      padding: 22px;
      display: flex;
      flex-direction: column;
      gap: 14px;
      justify-content: center;
    }
    .feature-list {
      display: grid;
      gap: 12px;
      height: 100%;
    }
    .feature-mini {
      padding: 18px;
      border-radius: var(--radius);
      border: 1px solid rgba(170, 216, 255, .12);
      background: linear-gradient(180deg, rgba(16, 27, 43, .95), rgba(11, 19, 30, .94));
      display: grid;
      grid-template-columns: 132px minmax(0, 1fr);
      gap: 16px;
      align-items: center;
      overflow: hidden;
      transition: transform .22s ease, border-color .22s ease, box-shadow .22s ease;
    }
    .feature-mini:hover { transform: translateY(-3px); border-color: rgba(104, 240, 178, .26); }
    .feature-mini figure {
      margin: 0;
      border-radius: 14px;
      overflow: hidden;
      position: relative;
      aspect-ratio: 4 / 3;
    }
    .feature-mini figure img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform .45s ease;
    }
    .feature-mini:hover figure img { transform: scale(1.04); }
    .feature-mini small {
      display: inline-flex;
      color: var(--primary);
      font-weight: 800;
      letter-spacing: .16em;
      text-transform: uppercase;
      margin-bottom: 6px;
    }
    .feature-mini h4 {
      margin: 0 0 8px;
      font-size: 17px;
      line-height: 1.34;
    }
    .feature-mini p {
      margin: 0;
      color: var(--muted);
      font-size: 14px;
    }
    .feature-mini .mini-link {
      display: inline-flex;
      margin-top: 12px;
      color: #eaf9ff;
      font-weight: 800;
      align-items: center;
      gap: 6px;
    }

    .score-grid {
      display: grid;
      grid-template-columns: repeat(4, minmax(0, 1fr));
      gap: 14px;
    }
    .score-card {
      padding: 18px;
      display: grid;
      gap: 10px;
      min-height: 160px;
    }
    .score-card strong {
      font-size: clamp(24px, 2.4vw, 34px);
      font-variant-numeric: tabular-nums;
      line-height: 1;
    }
    .score-line {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
    }
    .score-line .chip {
      padding: 6px 10px;
      font-size: 12px;
    }
    .score-bar {
      display: flex;
      gap: 12px;
      overflow-x: auto;
      padding-bottom: 6px;
      scrollbar-width: thin;
      scrollbar-color: rgba(160, 201, 255, .35) transparent;
    }
    .score-bar::-webkit-scrollbar { height: 8px; }
    .score-bar::-webkit-scrollbar-thumb {
      background: rgba(160, 201, 255, .32);
      border-radius: 999px;
    }
    .score-bar .score-card {
      min-width: 260px;
      flex: 1 0 260px;
    }

    .faq-grid {
      display: grid;
      gap: 12px;
    }
    .faq-item button {
      width: 100%;
      padding: 18px 20px;
      background: transparent;
      color: var(--text);
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      text-align: left;
      border: 0;
    }
    .faq-item button span {
      font-size: 17px;
      font-weight: 800;
      line-height: 1.35;
    }
    .faq-item button i {
      width: 28px;
      height: 28px;
      border-radius: 50%;
      background: rgba(52, 216, 255, .12);
      border: 1px solid rgba(52, 216, 255, .18);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-style: normal;
      color: #d9f5ff;
      flex: 0 0 auto;
      transition: transform .22s ease;
    }
    .faq-item.open button i { transform: rotate(45deg); }
    .faq-content {
      max-height: 0;
      overflow: hidden;
      transition: max-height .3s ease;
    }
    .faq-content div {
      padding: 0 20px 18px;
      color: var(--muted);
      max-width: 80ch;
    }
    .faq-item.open .faq-content { max-height: 240px; }

    .cta-panel {
      padding: clamp(22px, 4vw, 34px);
      display: grid;
      grid-template-columns: minmax(0, 1fr) auto;
      gap: 18px;
      align-items: center;
    }
    .cta-panel .cta-copy {
      display: grid;
      gap: 10px;
    }
    .cta-panel form {
      display: grid;
      grid-template-columns: minmax(0, 1fr) auto;
      gap: 10px;
      align-items: center;
      width: min(560px, 100%);
      justify-self: end;
    }
    .cta-panel form .btn { min-width: 128px; height: 52px; }
    .cta-panel form input { height: 52px; }
    .cta-support {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      color: var(--muted);
      font-size: 13px;
    }
    .cta-support strong { color: #fff; }

    .site-footer {
      padding: 16px 0 34px;
    }
    .footer-card {
      padding: 24px;
      display: grid;
      gap: 20px;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1.2fr .8fr .8fr 1fr;
      gap: 18px;
    }
    .footer-col h4 {
      margin: 0 0 12px;
      font-size: 16px;
    }
    .footer-col p {
      margin: 0;
      color: var(--muted);
    }
    .footer-links {
      list-style: none;
      margin: 0;
      padding: 0;
      display: grid;
      gap: 10px;
    }
    .footer-links a {
      color: #dbe8f6;
      transition: color .22s ease, transform .22s ease;
      display: inline-flex;
      gap: 8px;
      align-items: center;
    }
    .footer-links a:hover { color: #fff; transform: translateX(2px); }
    .footer-note {
      padding-top: 18px;
      border-top: 1px solid rgba(170, 216, 255, .12);
      color: var(--soft);
      font-size: 13px;
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      justify-content: space-between;
      align-items: center;
    }
    .footer-note strong { color: #d8ecfb; }
    .footer-badges { display: flex; flex-wrap: wrap; gap: 8px; }

    .reveal {
      opacity: 0;
      transform: translateY(12px);
      transition: opacity .45s ease, transform .45s ease;
    }
    .reveal.show {
      opacity: 1;
      transform: translateY(0);
    }

    .muted-border { border-color: rgba(170, 216, 255, .1); }
    .fine-print { color: var(--soft); font-size: 13px; }
    .sr-only {
      position: absolute;
      width: 1px;
      height: 1px;
      padding: 0;
      margin: -1px;
      overflow: hidden;
      clip: rect(0,0,0,0);
      white-space: nowrap;
      border: 0;
    }

    @media (max-width: 1440px) {
      .container { width: min(1200px, calc(100% - 2 * var(--space))); }
      .hero h1 { max-width: 13ch; }
      .topic-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
    }
    @media (max-width: 1200px) {
      .container { width: min(1120px, calc(100% - 2 * var(--space))); }
      .hero-grid { gap: 24px; }
      .feature-layout { grid-template-columns: 1fr; }
      .score-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
      .footer-grid { grid-template-columns: 1fr 1fr; }
      .feature-card { grid-template-columns: 1fr; }
      .feature-media { min-height: 280px; }
    }
    @media (max-width: 992px) {
      .header-inner {
        grid-template-columns: auto auto;
        grid-template-areas: "brand tools" "nav nav";
        gap: 14px;
      }
      .brand { grid-area: brand; }
      .header-tools { grid-area: tools; }
      .site-nav {
        grid-area: nav;
        justify-self: stretch;
      }
      .site-nav ul {
        justify-content: flex-start;
      }
      .header-search { width: 250px; max-width: 44vw; }
      .hero-grid {
        grid-template-columns: 1fr;
      }
      .hero h1 { max-width: 15ch; }
      .hero-panel { max-width: 720px; }
      .topic-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
      .score-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
      .cta-panel { grid-template-columns: 1fr; }
      .cta-panel form { justify-self: start; width: 100%; }
      .site-header .site-nav { display: block; }
    }
    @media (max-width: 768px) {
      .site-header { position: sticky; }
      .header-inner {
        grid-template-columns: 1fr auto;
        grid-template-areas: "brand tools" "nav nav";
      }
      .header-search { display: none; }
      .menu-toggle { display: inline-flex; }
      .site-nav ul {
        display: none;
        padding: 6px 0 0;
      }
      .site-header.nav-open .site-nav ul {
        display: grid;
        grid-template-columns: 1fr;
        gap: 8px;
      }
      .site-header.nav-open .site-nav a {
        width: 100%;
        justify-content: flex-start;
      }
      .hero-shell { border-radius: 20px; }
      .hero-grid { padding: 22px; }
      .hero h1 { font-size: clamp(30px, 8vw, 44px); }
      .hero-metrics { grid-template-columns: 1fr; }
      .hero-search { grid-template-columns: 1fr; }
      .hero-search .btn { width: 100%; }
      .topic-grid { grid-template-columns: 1fr; }
      .score-grid { grid-template-columns: 1fr; }
      .feature-mini { grid-template-columns: 1fr; }
      .footer-grid { grid-template-columns: 1fr; }
      .cta-panel form { grid-template-columns: 1fr; }
      .cta-panel form .btn { width: 100%; }
      .section-title { font-size: clamp(22px, 5vw, 30px); }
    }
    @media (max-width: 576px) {
      :root { --space: 14px; }
      .container { width: min(100% - 28px, 1240px); }
      .header-inner { min-height: 70px; }
      .brand-mark { width: 38px; height: 38px; border-radius: 12px; }
      .brand-title { font-size: 15px; }
      .brand-sub { display: none; }
      .hero { padding-top: 18px; }
      .hero-shell { border-radius: 18px; }
      .hero-grid { padding: 18px; gap: 16px; }
      .hero h1 { max-width: 100%; }
      .hero-lead { font-size: 15px; }
      .hero-actions { gap: 10px; }
      .btn { min-height: 44px; padding: 0 16px; }
      .topic-card, .feature-mini, .score-card, .faq-item button, .footer-card { border-radius: 14px; }
      .faq-item button span { font-size: 16px; }
      .faq-content div { padding-inline: 18px; }
      .cta-panel { padding: 18px; }
    }
    @media (max-width: 375px) {
      .header-tools { gap: 8px; }
      .menu-toggle { width: 42px; height: 42px; border-radius: 12px; }
      .brand-mark { width: 34px; height: 34px; }
      .hero h1 { font-size: 30px; }
      .topic-stat { font-size: 30px; }
    }

/* roulang page: category1 */
:root{
      --bg:#070a12;
      --bg-2:#0d1220;
      --panel:#101726;
      --panel-2:#151d30;
      --card:#111827;
      --card-hover:#172038;
      --text:#eef5ff;
      --muted:#9ca9c3;
      --muted-2:#6f7b95;
      --line:rgba(120,148,190,.22);
      --line-strong:rgba(41,231,255,.46);
      --cyan:#29e7ff;
      --blue:#4f7cff;
      --violet:#875cff;
      --green:#48f2a8;
      --orange:#ffb84a;
      --red:#ff6b7a;
      --radius-sm:10px;
      --radius:16px;
      --radius-lg:22px;
      --shadow:0 20px 55px rgba(0,0,0,.32);
      --shadow-soft:0 12px 32px rgba(0,0,0,.22);
      --container:1180px;
      --nav-h:72px;
      --ease:.22s ease;
    }
    *{box-sizing:border-box;margin:0;padding:0}
    html{scroll-behavior:smooth}
    body{
      min-height:100vh;
      font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;
      color:var(--text);
      line-height:1.72;
      background:
        radial-gradient(circle at 16% 0%, rgba(79,124,255,.18), transparent 34%),
        radial-gradient(circle at 88% 10%, rgba(41,231,255,.11), transparent 30%),
        linear-gradient(180deg,#070a12 0%,#0b1020 44%,#070a12 100%);
      overflow-x:hidden;
    }
    body::before{
      content:"";
      position:fixed;
      inset:0;
      pointer-events:none;
      background-image:
        linear-gradient(rgba(255,255,255,.025) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,.025) 1px, transparent 1px);
      background-size:34px 34px;
      mask-image:linear-gradient(to bottom,rgba(0,0,0,.8),transparent 82%);
      z-index:-2;
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input,select{font:inherit}
    button{cursor:pointer;border:0}
    ::selection{background:rgba(41,231,255,.25);color:#fff}
    .container{width:min(var(--container),calc(100% - 40px));margin:0 auto}
    .skip-link{
      position:absolute;left:-999px;top:12px;padding:10px 14px;
      background:var(--cyan);color:#021018;border-radius:10px;z-index:1000
    }
    .skip-link:focus{left:12px;outline:3px solid rgba(255,255,255,.45)}
    .site-header{
      position:sticky;top:0;z-index:100;
      height:var(--nav-h);
      background:rgba(7,10,18,.86);
      backdrop-filter:blur(14px);
      border-bottom:1px solid rgba(120,148,190,.18);
      transition:height var(--ease),background var(--ease),border-color var(--ease);
    }
    .site-header.is-scrolled{height:62px;background:rgba(7,10,18,.96);border-color:rgba(41,231,255,.3)}
    .nav-wrap{
      height:100%;
      display:flex;align-items:center;justify-content:space-between;gap:22px;
    }
    .brand{display:inline-flex;align-items:center;gap:12px;min-width:0}
    .brand-mark{
      width:38px;height:38px;border-radius:12px;position:relative;flex:0 0 auto;
      background:
        linear-gradient(135deg,rgba(41,231,255,.95),rgba(135,92,255,.86));
      box-shadow:0 0 26px rgba(41,231,255,.26);
    }
    .brand-mark::before{
      content:"LOL";position:absolute;inset:7px 5px;
      display:grid;place-items:center;
      color:#06101d;font-size:10px;font-weight:900;letter-spacing:.4px;
      background:rgba(255,255,255,.72);border-radius:8px;
    }
    .brand-text{display:flex;flex-direction:column;line-height:1.14;min-width:0}
    .brand-title{
      font-size:18px;font-weight:900;letter-spacing:.2px;white-space:nowrap;
      background:linear-gradient(90deg,#fff,var(--cyan));-webkit-background-clip:text;background-clip:text;color:transparent;
    }
    .brand-sub{font-size:12px;color:var(--muted);white-space:nowrap;margin-top:3px}
    .site-nav ul{list-style:none;display:flex;align-items:center;gap:8px}
    .site-nav a{
      display:inline-flex;align-items:center;min-height:38px;
      padding:8px 13px;border-radius:999px;color:#cbd6ec;
      border:1px solid transparent;transition:background var(--ease),color var(--ease),border-color var(--ease),box-shadow var(--ease);
      font-size:14px;font-weight:700;
    }
    .site-nav a:hover,.site-nav a:focus{
      color:#fff;background:rgba(41,231,255,.08);border-color:rgba(41,231,255,.28);outline:none;
      box-shadow:0 0 0 3px rgba(41,231,255,.08);
    }
    .site-nav a.active{
      color:#06101d;background:linear-gradient(135deg,var(--cyan),#7efcff);
      border-color:rgba(41,231,255,.9);box-shadow:0 0 22px rgba(41,231,255,.18);
    }
    .nav-actions{display:flex;align-items:center;gap:10px}
    .search-mini{
      width:260px;display:flex;align-items:center;gap:8px;
      padding:7px 10px;border:1px solid rgba(120,148,190,.24);border-radius:999px;
      background:rgba(17,24,39,.82);
    }
    .search-mini span{color:var(--cyan);font-weight:900}
    .search-mini input{
      width:100%;background:transparent;border:0;color:#fff;outline:0;font-size:13px;
    }
    .search-mini:focus-within{border-color:var(--cyan);box-shadow:0 0 0 3px rgba(41,231,255,.1)}
    .menu-toggle{
      display:none;width:42px;height:42px;border-radius:12px;
      background:rgba(255,255,255,.06);border:1px solid var(--line);color:#fff;
    }
    .btn{
      display:inline-flex;align-items:center;justify-content:center;gap:8px;
      min-height:44px;padding:11px 18px;border-radius:12px;font-weight:900;
      transition:transform var(--ease),box-shadow var(--ease),background var(--ease),border-color var(--ease),color var(--ease);
      user-select:none;
    }
    .btn:hover{transform:translateY(-2px)}
    .btn:focus{outline:3px solid rgba(41,231,255,.22);outline-offset:2px}
    .btn-primary{
      color:#06101d;background:linear-gradient(135deg,var(--cyan),#8af7ff);
      box-shadow:0 12px 30px rgba(41,231,255,.18);
    }
    .btn-primary:hover{box-shadow:0 18px 36px rgba(41,231,255,.28);filter:brightness(1.04)}
    .btn-secondary{
      color:#eaf6ff;background:rgba(255,255,255,.045);border:1px solid rgba(41,231,255,.28);
    }
    .btn-secondary:hover{background:rgba(41,231,255,.08);border-color:rgba(41,231,255,.55)}
    .btn-ghost{
      min-height:38px;padding:8px 13px;border-radius:999px;
      color:#d7e4ff;background:rgba(255,255,255,.04);border:1px solid var(--line);
      font-size:13px;
    }
    .page-hero{
      position:relative;
      padding:42px 0 34px;
      overflow:hidden;
      border-bottom:1px solid rgba(120,148,190,.13);
    }
    .page-hero::before{
      content:"";
      position:absolute;inset:0;
      background:
        linear-gradient(90deg,rgba(7,10,18,.94),rgba(7,10,18,.68)),
        url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
      opacity:.8;z-index:-2;
    }
    .page-hero::after{
      content:"";
      position:absolute;right:-120px;top:18px;width:430px;height:180px;
      background:linear-gradient(135deg,rgba(41,231,255,.18),rgba(135,92,255,.16));
      filter:blur(30px);z-index:-1;transform:skewX(-18deg);
    }
    .breadcrumb{
      display:flex;align-items:center;gap:8px;flex-wrap:wrap;
      color:var(--muted);font-size:13px;margin-bottom:18px;
    }
    .breadcrumb a{color:#cbd6ec}
    .breadcrumb a:hover{color:var(--cyan)}
    .hero-shell{
      display:grid;grid-template-columns:1.06fr .94fr;gap:34px;align-items:center;
    }
    .eyebrow{
      display:inline-flex;align-items:center;gap:8px;
      color:var(--cyan);font-weight:900;font-size:13px;letter-spacing:.5px;
      padding:6px 10px;border:1px solid rgba(41,231,255,.24);border-radius:999px;background:rgba(41,231,255,.07);
      margin-bottom:14px;
    }
    .eyebrow::before{
      content:"";width:8px;height:8px;border-radius:50%;background:var(--green);
      box-shadow:0 0 14px rgba(72,242,168,.55);
    }
    h1{
      max-width:790px;
      font-size:clamp(31px,4vw,54px);
      line-height:1.08;letter-spacing:-1.4px;font-weight:950;
      margin-bottom:16px;
    }
    .hero-desc{
      max-width:760px;color:#c7d3ea;font-size:17px;line-height:1.82;
      margin-bottom:22px;
    }
    .hero-meta{
      display:flex;flex-wrap:wrap;gap:10px;margin-top:18px;
    }
    .status-pill{
      display:inline-flex;align-items:center;gap:8px;
      padding:8px 12px;border-radius:999px;background:rgba(255,255,255,.055);
      border:1px solid var(--line);color:#dce7fb;font-size:13px;font-weight:800;
    }
    .status-pill b{color:var(--orange)}
    .hero-panel{
      border:1px solid rgba(41,231,255,.22);border-radius:var(--radius-lg);
      background:linear-gradient(180deg,rgba(17,24,39,.9),rgba(12,18,32,.92));
      box-shadow:var(--shadow);overflow:hidden;
    }
    .hero-panel-img{height:210px;position:relative;overflow:hidden}
    .hero-panel-img img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;opacity:.88}
    .hero-panel:hover .hero-panel-img img{transform:scale(1.035)}
    .hero-panel-img::after{
      content:"";position:absolute;inset:0;
      background:linear-gradient(180deg,transparent 32%,rgba(8,12,22,.95));
    }
    .match-strip{
      display:grid;grid-template-columns:1fr auto 1fr;gap:14px;align-items:center;
      padding:18px 20px 20px;
    }
    .team{text-align:center}
    .team small{display:block;color:var(--muted);font-size:12px}
    .team strong{display:block;font-size:20px;margin-top:3px}
    .score-box{
      min-width:92px;text-align:center;padding:10px 12px;border-radius:14px;
      background:rgba(41,231,255,.09);border:1px solid rgba(41,231,255,.22);
      color:#fff;font-weight:950;font-size:22px;font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;
    }
    main{position:relative}
    .section{padding:72px 0}
    .section.compact{padding:50px 0}
    .section-head{
      display:flex;justify-content:space-between;align-items:flex-end;gap:24px;margin-bottom:24px;
    }
    .section-title{font-size:clamp(24px,2.4vw,34px);line-height:1.18;font-weight:950;letter-spacing:-.6px}
    .section-desc{color:var(--muted);max-width:720px;margin-top:8px}
    .filter-board{
      border:1px solid var(--line);border-radius:var(--radius-lg);
      background:linear-gradient(180deg,rgba(17,24,39,.88),rgba(12,18,32,.88));
      box-shadow:var(--shadow-soft);padding:20px;
    }
    .filter-top{
      display:grid;grid-template-columns:1fr auto;gap:18px;align-items:center;margin-bottom:16px;
    }
    .search-wide{
      display:flex;align-items:center;gap:10px;padding:12px 14px;border:1px solid rgba(120,148,190,.28);
      border-radius:14px;background:rgba(255,255,255,.045);
    }
    .search-wide label{color:var(--cyan);font-weight:950;white-space:nowrap}
    .search-wide input{width:100%;background:transparent;border:0;outline:0;color:#fff}
    .search-wide:focus-within{border-color:var(--cyan);box-shadow:0 0 0 3px rgba(41,231,255,.1)}
    .select-wrap select{
      min-height:48px;padding:0 38px 0 14px;border-radius:14px;
      background:#111827;color:#eaf2ff;border:1px solid rgba(120,148,190,.28);outline:0;
    }
    .filter-row{
      display:flex;flex-wrap:wrap;gap:10px;padding-top:14px;border-top:1px solid rgba(120,148,190,.16);
    }
    .filter-chip{
      padding:8px 12px;border-radius:999px;background:rgba(255,255,255,.04);
      border:1px solid var(--line);color:#cdd8ee;font-weight:800;font-size:13px;
      transition:background var(--ease),border-color var(--ease),transform var(--ease),color var(--ease);
    }
    .filter-chip:hover,.filter-chip.active{
      background:rgba(41,231,255,.1);border-color:rgba(41,231,255,.5);color:#fff;transform:translateY(-1px);
    }
    .overview-bar{
      display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:18px;
    }
    .overview-item{
      padding:15px;border:1px solid rgba(120,148,190,.18);border-radius:15px;
      background:rgba(255,255,255,.035);
    }
    .overview-item span{display:block;color:var(--muted);font-size:12px}
    .overview-item strong{display:block;margin-top:2px;font-size:22px;font-weight:950;font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace}
    .content-layout{
      display:grid;grid-template-columns:300px 1fr;gap:22px;align-items:start;
    }
    .side-card,.feature-card,.scenario-card,.step-card,.faq-item,.cta-card{
      border:1px solid var(--line);border-radius:var(--radius);
      background:linear-gradient(180deg,rgba(17,24,39,.9),rgba(13,19,34,.9));
      box-shadow:var(--shadow-soft);
    }
    .side-card{position:sticky;top:92px;padding:20px}
    .side-card h2,.feature-card h3,.scenario-card h3,.step-card h3{font-size:18px;line-height:1.35}
    .side-list{list-style:none;margin-top:14px;display:grid;gap:10px}
    .side-list li{
      display:flex;justify-content:space-between;gap:12px;padding:11px 0;border-bottom:1px solid rgba(120,148,190,.14);
      color:#d7e4fb;font-size:14px;
    }
    .side-list li:last-child{border-bottom:0}
    .side-list em{font-style:normal;color:var(--cyan);font-weight:950}
    .result-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
    .topic-card{
      overflow:hidden;border:1px solid var(--line);border-radius:var(--radius-lg);
      background:linear-gradient(180deg,rgba(17,24,39,.92),rgba(10,16,30,.92));
      transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease),background var(--ease);
    }
    .topic-card:hover{
      transform:translateY(-4px);border-color:rgba(41,231,255,.48);box-shadow:0 18px 44px rgba(41,231,255,.1);
      background:linear-gradient(180deg,var(--card-hover),rgba(10,16,30,.94));
    }
    .topic-cover{height:156px;overflow:hidden;position:relative}
    .topic-cover img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease;opacity:.88}
    .topic-card:hover .topic-cover img{transform:scale(1.04)}
    .topic-cover::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 34%,rgba(7,10,18,.88))}
    .topic-body{padding:18px}
    .tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:12px}
    .tag,.chip{
      display:inline-flex;align-items:center;gap:6px;border-radius:999px;
      padding:5px 9px;font-size:12px;font-weight:850;color:#dce9ff;
      background:rgba(79,124,255,.12);border:1px solid rgba(79,124,255,.26);
    }
    .tag.cyan{background:rgba(41,231,255,.1);border-color:rgba(41,231,255,.28)}
    .tag.green{background:rgba(72,242,168,.09);border-color:rgba(72,242,168,.24)}
    .tag.orange{background:rgba(255,184,74,.1);border-color:rgba(255,184,74,.28)}
    .topic-body h2{font-size:20px;line-height:1.35;margin-bottom:8px}
    .topic-body p{color:var(--muted);font-size:14px}
    .topic-meta{
      display:flex;align-items:center;justify-content:space-between;gap:14px;margin-top:16px;
      color:var(--muted-2);font-size:12px;
    }
    .hot{color:var(--orange);font-weight:950}
    .feature-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:22px}
    .feature-card{padding:24px;overflow:hidden;position:relative}
    .feature-card::after{
      content:"";position:absolute;right:-60px;bottom:-80px;width:180px;height:180px;border-radius:50%;
      background:rgba(41,231,255,.08);filter:blur(10px);
    }
    .feature-list{list-style:none;margin-top:18px;display:grid;gap:12px}
    .feature-list li{
      display:grid;grid-template-columns:26px 1fr;gap:10px;align-items:start;
      color:#d8e3f6;
    }
    .feature-list i{
      width:26px;height:26px;border-radius:8px;display:grid;place-items:center;font-style:normal;font-size:13px;
      color:#06101d;background:var(--cyan);font-weight:950;
    }
    .visual-card{
      min-height:330px;border-radius:var(--radius-lg);overflow:hidden;position:relative;border:1px solid rgba(41,231,255,.22);
      box-shadow:var(--shadow);
    }
    .visual-card img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0;opacity:.82}
    .visual-card::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(7,10,18,.05),rgba(7,10,18,.92))}
    .visual-info{position:absolute;left:20px;right:20px;bottom:20px;z-index:1}
    .visual-info strong{font-size:24px;display:block}
    .visual-info p{color:#c7d3ea;margin-top:6px}
    .scenario-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
    .scenario-card{padding:22px;transition:transform var(--ease),border-color var(--ease)}
    .scenario-card:hover{transform:translateY(-3px);border-color:rgba(41,231,255,.44)}
    .scenario-card .num{
      width:42px;height:42px;border-radius:14px;display:grid;place-items:center;
      background:rgba(41,231,255,.1);border:1px solid rgba(41,231,255,.24);color:var(--cyan);
      font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;font-weight:950;margin-bottom:14px;
    }
    .scenario-card p{color:var(--muted);margin-top:8px;font-size:14px}
    .steps{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;counter-reset:step}
    .step-card{padding:20px;position:relative;overflow:hidden}
    .step-card::before{
      counter-increment:step;content:"0" counter(step);
      display:inline-flex;margin-bottom:14px;color:var(--cyan);
      font-size:28px;font-weight:950;font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;
    }
    .step-card p{color:var(--muted);font-size:14px;margin-top:8px}
    .faq-wrap{display:grid;gap:12px}
    .faq-item{overflow:hidden}
    .faq-q{
      width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
      background:transparent;color:#fff;text-align:left;padding:18px 20px;font-weight:950;
    }
    .faq-q span:last-child{
      width:28px;height:28px;border-radius:9px;display:grid;place-items:center;flex:0 0 auto;
      background:rgba(41,231,255,.09);border:1px solid rgba(41,231,255,.22);color:var(--cyan);
      transition:transform var(--ease);
    }
    .faq-a{display:none;padding:0 20px 18px;color:var(--muted)}
    .faq-item.open .faq-a{display:block}
    .faq-item.open .faq-q span:last-child{transform:rotate(45deg)}
    .cta-card{
      padding:30px;display:grid;grid-template-columns:1fr auto;gap:24px;align-items:center;
      background:
        linear-gradient(135deg,rgba(41,231,255,.12),rgba(135,92,255,.12)),
        linear-gradient(180deg,rgba(17,24,39,.92),rgba(10,16,30,.94));
      border-color:rgba(41,231,255,.3);
    }
    .cta-card h2{font-size:30px;line-height:1.2;margin-bottom:8px}
    .cta-card p{color:#c9d5ea;max-width:760px}
    .pagination{
      display:flex;justify-content:center;align-items:center;gap:8px;margin-top:28px;
    }
    .page-btn{
      min-width:40px;height:40px;border-radius:12px;display:grid;place-items:center;
      background:rgba(255,255,255,.045);border:1px solid var(--line);color:#dce7fb;font-weight:900;
      transition:background var(--ease),border-color var(--ease),color var(--ease);
    }
    .page-btn:hover{background:rgba(41,231,255,.08);border-color:rgba(41,231,255,.4)}
    .page-btn.current{background:var(--cyan);border-color:var(--cyan);color:#06101d}
    .page-btn.disabled{opacity:.45;cursor:not-allowed}
    .site-footer{padding:54px 0 28px;background:#050812;border-top:1px solid rgba(120,148,190,.18)}
    .footer-card{
      border:1px solid rgba(120,148,190,.18);border-radius:var(--radius-lg);
      background:linear-gradient(180deg,rgba(17,24,39,.82),rgba(8,12,22,.92));
      padding:26px;box-shadow:var(--shadow-soft);
    }
    .footer-grid{display:grid;grid-template-columns:1.35fr .75fr .75fr .9fr;gap:26px}
    .footer-col p{color:var(--muted);font-size:14px}
    .footer-col h4{font-size:15px;margin-bottom:12px;color:#fff}
    .footer-links{list-style:none;display:grid;gap:9px}
    .footer-links a{color:var(--muted);font-size:14px;transition:color var(--ease),padding-left var(--ease)}
    .footer-links a:hover{color:var(--cyan);padding-left:3px}
    .footer-note{
      display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;
      padding-top:18px;margin-top:22px;border-top:1px solid rgba(120,148,190,.16);color:var(--muted);font-size:13px;
    }
    .footer-badges{display:flex;flex-wrap:wrap;gap:8px}
    .reveal{animation:fadeUp .55s ease both}
    @keyframes fadeUp{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:translateY(0)}}

    @media (min-width:1440px){
      :root{--container:1260px}
      .topic-cover{height:174px}
    }
    @media (max-width:1200px){
      .search-mini{width:210px}
      .content-layout{grid-template-columns:270px 1fr}
      .steps{grid-template-columns:repeat(2,1fr)}
    }
    @media (max-width:992px){
      .nav-actions{display:none}
      .hero-shell,.feature-grid,.content-layout,.cta-card{grid-template-columns:1fr}
      .side-card{position:relative;top:0}
      .overview-bar{grid-template-columns:repeat(2,1fr)}
      .footer-grid{grid-template-columns:1fr 1fr}
    }
    @media (max-width:768px){
      :root{--nav-h:68px}
      .container{width:min(100% - 28px,var(--container))}
      .menu-toggle{display:grid;place-items:center}
      .site-nav{
        position:absolute;left:14px;right:14px;top:68px;
        padding:12px;border:1px solid rgba(120,148,190,.24);border-radius:16px;
        background:rgba(7,10,18,.98);box-shadow:var(--shadow);display:none;
      }
      .site-nav.open{display:block}
      .site-nav ul{flex-direction:column;align-items:stretch}
      .site-nav a{justify-content:center;width:100%}
      .brand-sub{display:none}
      .section{padding:54px 0}
      .filter-top{grid-template-columns:1fr}
      .result-grid,.scenario-grid{grid-template-columns:1fr}
      .hero-panel-img{height:185px}
      .match-strip{grid-template-columns:1fr;gap:10px}
      .score-box{margin:0 auto}
    }
    @media (max-width:576px){
      h1{font-size:32px;letter-spacing:-.8px}
      .hero-desc{font-size:15px}
      .page-hero{padding:30px 0}
      .overview-bar,.steps,.footer-grid{grid-template-columns:1fr}
      .section-head{display:block}
      .btn{width:100%}
      .hero-meta .status-pill{width:100%;justify-content:center}
      .cta-card{padding:22px}
      .cta-card h2{font-size:24px}
      .pagination{flex-wrap:wrap}
      .footer-note{align-items:flex-start}
    }
    @media (max-width:375px){
      .brand-title{font-size:15px}
      .brand-mark{width:34px;height:34px}
      .filter-chip,.tag{font-size:11px}
      .topic-body{padding:15px}
    }