/* roulang page: index */
:root {
      --bg: #0E0B13;
      --bg-soft: #130F1A;
      --panel: #171020;
      --panel-2: #1D1428;
      --text: #F3F0FA;
      --muted: #D8D3E6;
      --subtle: #8F879E;
      --line: rgba(216, 211, 230, .14);
      --line-strong: rgba(142, 92, 255, .42);
      --accent: #8E5CFF;
      --accent-2: #C94F7C;
      --ok: #7DD3C7;
      --warn: #E0B56C;
      --radius: 16px;
      --radius-sm: 12px;
      --shadow: 0 18px 60px rgba(0, 0, 0, .28);
      --glow: 0 0 0 1px rgba(142, 92, 255, .32), 0 18px 56px rgba(142, 92, 255, .12);
      --container: 1200px;
    }

    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    body {
      margin: 0;
      font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", Arial, sans-serif;
      font-size: 16px;
      line-height: 1.75;
      letter-spacing: 0;
      color: var(--text);
      background:
        radial-gradient(circle at 78% 8%, rgba(142, 92, 255, .12), transparent 28%),
        radial-gradient(circle at 18% 34%, rgba(201, 79, 124, .08), transparent 25%),
        linear-gradient(180deg, #0E0B13 0%, #120D19 42%, #0E0B13 100%);
      overflow-x: hidden;
    }

    body::before {
      content: "";
      position: fixed;
      inset: 0;
      pointer-events: none;
      opacity: .22;
      background-image:
        linear-gradient(rgba(216, 211, 230, .045) 1px, transparent 1px),
        linear-gradient(90deg, rgba(216, 211, 230, .035) 1px, transparent 1px);
      background-size: 46px 46px;
      mask-image: linear-gradient(to bottom, rgba(0,0,0,.8), transparent 86%);
      z-index: -1;
    }

    a { color: inherit; text-decoration: none; transition: color .2s ease, border-color .2s ease, transform .2s ease; }
    a:hover { color: var(--text); }
    img { max-width: 100%; display: block; }
    button, input, textarea, select { font: inherit; }
    ::selection { background: rgba(142, 92, 255, .38); color: #fff; }

    .site-container {
      width: min(100% - 40px, var(--container));
      margin-inline: auto;
    }

    .skip-link {
      position: absolute;
      left: 16px;
      top: -60px;
      padding: 10px 16px;
      border-radius: 999px;
      background: var(--accent);
      color: #fff;
      z-index: 2000;
    }
    .skip-link:focus { top: 16px; }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      min-height: 76px;
      border-bottom: 1px solid rgba(216, 211, 230, .10);
      background: rgba(14, 11, 19, .86);
      backdrop-filter: blur(18px);
      box-shadow: 0 12px 36px rgba(0, 0, 0, .20);
    }

    .navbar { min-height: 76px; padding: 0; }
    .brand-mark {
      display: inline-flex;
      align-items: center;
      gap: 12px;
      font-weight: 800;
      color: var(--text);
      max-width: 340px;
      white-space: normal;
      line-height: 1.25;
    }
    .brand-mark::before {
      content: "";
      width: 34px;
      height: 34px;
      border-radius: 12px;
      background:
        linear-gradient(135deg, rgba(142, 92, 255, .92), rgba(201, 79, 124, .76)),
        linear-gradient(45deg, transparent 42%, rgba(255,255,255,.8) 44%, transparent 48%);
      box-shadow: 0 0 28px rgba(142, 92, 255, .34);
      flex: 0 0 auto;
    }

    .navbar-toggler {
      border: 1px solid var(--line);
      border-radius: 12px;
      color: var(--muted);
      padding: 9px 11px;
      box-shadow: none;
    }
    .navbar-toggler:focus { box-shadow: var(--glow); }

    .nav-center {
      display: flex;
      align-items: center;
      gap: 6px;
      margin-inline: auto;
    }
    .nav-link {
      position: relative;
      color: var(--muted);
      font-weight: 600;
      padding: 10px 16px !important;
      border-radius: 999px;
    }
    .nav-link:hover,
    .nav-link:focus { color: #fff; background: rgba(216, 211, 230, .06); }
    .nav-link.active { color: #fff; }
    .nav-link.active::after {
      content: "";
      position: absolute;
      left: 18px;
      right: 18px;
      bottom: 5px;
      height: 2px;
      border-radius: 99px;
      background: linear-gradient(90deg, var(--accent), var(--accent-2));
    }

    .nav-actions { display: flex; gap: 10px; align-items: center; }
    .btn-brand,
    .btn-ghost,
    .btn-soft {
      min-height: 46px;
      border-radius: 999px;
      padding: 11px 20px;
      border: 1px solid transparent;
      font-weight: 750;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      transition: transform .22s ease, box-shadow .22s ease, border-color .22s ease, background .22s ease, color .22s ease;
    }
    .btn-brand {
      color: #fff;
      background: linear-gradient(135deg, var(--accent), var(--accent-2));
      box-shadow: 0 14px 34px rgba(142, 92, 255, .22);
    }
    .btn-brand:hover,
    .btn-brand:focus {
      color: #fff;
      transform: translateY(-2px);
      border-color: rgba(255,255,255,.22);
      box-shadow: 0 18px 42px rgba(142, 92, 255, .32);
    }
    .btn-ghost {
      color: var(--muted);
      background: transparent;
      border-color: var(--line);
    }
    .btn-ghost:hover,
    .btn-ghost:focus {
      color: #fff;
      background: rgba(142, 92, 255, .10);
      border-color: rgba(216, 211, 230, .24);
      transform: translateY(-2px);
    }
    .btn-soft {
      color: var(--text);
      background: rgba(216, 211, 230, .08);
      border-color: rgba(216, 211, 230, .16);
    }
    .btn-soft:hover { background: rgba(216, 211, 230, .13); transform: translateY(-2px); }
    .btn:focus-visible,
    a:focus-visible,
    .accordion-button:focus-visible,
    .form-control:focus-visible {
      outline: 2px solid rgba(142, 92, 255, .86);
      outline-offset: 3px;
      box-shadow: 0 0 0 6px rgba(142, 92, 255, .12);
    }

    main { overflow: hidden; }
    section { position: relative; padding: 94px 0; }
    .section-kicker {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      color: var(--muted);
      font-size: 14px;
      font-weight: 700;
      margin-bottom: 14px;
    }
    .section-kicker::before {
      content: "";
      width: 22px;
      height: 1px;
      background: linear-gradient(90deg, var(--accent), transparent);
    }
    .section-title {
      font-size: clamp(32px, 4vw, 42px);
      line-height: 1.18;
      font-weight: 800;
      margin: 0 0 16px;
    }
    .section-desc {
      max-width: 760px;
      color: var(--muted);
      font-size: 17px;
      margin: 0 0 34px;
    }

    .hero {
      min-height: 705px;
      padding: 86px 0 64px;
      display: flex;
      align-items: center;
    }
    .hero-grid {
      display: grid;
      grid-template-columns: 5fr 7fr;
      gap: 44px;
      align-items: center;
    }
    .hero-copy { position: relative; z-index: 2; }
    .trust-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-bottom: 24px;
    }
    .tag {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      min-height: 32px;
      padding: 6px 12px;
      border-radius: 999px;
      border: 1px solid rgba(216, 211, 230, .16);
      color: var(--muted);
      background: rgba(216, 211, 230, .045);
      font-size: 13px;
      font-weight: 650;
    }
    h1 {
      font-size: clamp(36px, 5.2vw, 64px);
      line-height: 1.12;
      font-weight: 850;
      margin: 0 0 22px;
      max-width: 760px;
    }
    .hero-lead {
      color: var(--muted);
      font-size: 18px;
      max-width: 620px;
      margin: 0 0 30px;
    }
    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 14px;
      margin-bottom: 30px;
    }
    .hero-kpis {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 14px;
      max-width: 590px;
    }
    .kpi {
      padding: 16px;
      border: 1px solid var(--line);
      border-radius: var(--radius-sm);
      background: rgba(23, 16, 32, .62);
    }
    .kpi strong {
      display: block;
      font-size: 24px;
      line-height: 1.1;
      color: #fff;
    }
    .kpi span { color: var(--subtle); font-size: 13px; }

    .dp-cover {
      position: relative;
      min-height: 470px;
      transform: skewY(-2deg) translateY(10px);
      border-radius: 28px;
      border: 1px solid rgba(216, 211, 230, .15);
      background:
        linear-gradient(135deg, rgba(142, 92, 255, .18), rgba(201, 79, 124, .10) 45%, rgba(216, 211, 230, .05)),
        radial-gradient(circle at 72% 28%, rgba(216, 211, 230, .18), transparent 18%),
        linear-gradient(160deg, #1C1327 0%, #100C16 100%);
      box-shadow: var(--shadow), inset 0 0 0 1px rgba(255,255,255,.04);
      overflow: hidden;
    }
    .dp-cover::before {
      content: "";
      position: absolute;
      inset: 18px;
      border: 1px solid rgba(216, 211, 230, .12);
      border-radius: 22px;
      background:
        linear-gradient(90deg, transparent 0 48%, rgba(216,211,230,.06) 49% 51%, transparent 52%),
        repeating-linear-gradient(135deg, rgba(216,211,230,.045) 0 1px, transparent 1px 18px);
    }
    .dp-cover::after {
      content: "";
      position: absolute;
      inset: -60% -30%;
      background: linear-gradient(110deg, transparent 42%, rgba(255,255,255,.12) 48%, transparent 54%);
      animation: sweep 8s ease-in-out infinite;
    }
    @keyframes sweep {
      0%, 55% { transform: translateX(-42%); opacity: 0; }
      70% { opacity: 1; }
      100% { transform: translateX(46%); opacity: 0; }
    }
    .cover-inner {
      position: relative;
      z-index: 1;
      transform: skewY(2deg);
      padding: 34px;
      min-height: 470px;
      display: grid;
      grid-template-columns: 1fr .82fr;
      gap: 18px;
      align-content: end;
    }
    .index-panel,
    .filter-panel,
    .cover-note {
      border: 1px solid rgba(216, 211, 230, .14);
      border-radius: 18px;
      background: rgba(14, 11, 19, .74);
      backdrop-filter: blur(10px);
    }
    .index-panel { padding: 22px; }
    .panel-title {
      color: #fff;
      font-weight: 800;
      margin-bottom: 14px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
    }
    .panel-list {
      display: grid;
      gap: 10px;
      padding: 0;
      margin: 0;
      list-style: none;
    }
    .panel-list li {
      display: flex;
      justify-content: space-between;
      gap: 12px;
      padding: 11px 0;
      border-bottom: 1px solid rgba(216, 211, 230, .09);
      color: var(--muted);
    }
    .panel-list li:last-child { border-bottom: 0; }
    .filter-panel {
      padding: 18px;
      align-self: start;
      margin-top: 44px;
    }
    .filter-chip {
      display: inline-flex;
      margin: 5px 4px 5px 0;
      padding: 7px 10px;
      border-radius: 999px;
      background: rgba(142, 92, 255, .12);
      color: var(--muted);
      border: 1px solid rgba(142, 92, 255, .22);
      font-size: 13px;
    }
    .cover-note {
      grid-column: 1 / -1;
      padding: 18px 20px;
      color: var(--muted);
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 18px;
    }

    .directory-section { background: rgba(19, 15, 26, .64); border-block: 1px solid rgba(216,211,230,.06); }
    .directory-grid {
      display: grid;
      grid-template-columns: 1.05fr 1.55fr;
      gap: 28px;
      align-items: start;
    }
    .directory-map {
      display: grid;
      gap: 14px;
    }
    .directory-item {
      position: relative;
      display: grid;
      grid-template-columns: 48px 1fr auto;
      gap: 15px;
      align-items: center;
      padding: 18px;
      border: 1px solid var(--line);
      border-radius: var(--radius);
      background: rgba(23, 16, 32, .74);
      overflow: hidden;
      transition: transform .22s ease, border-color .22s ease, box-shadow .22s ease;
    }
    .directory-item:hover {
      transform: translateY(-3px);
      border-color: var(--line-strong);
      box-shadow: var(--glow);
    }
    .icon-box {
      width: 48px;
      height: 48px;
      border-radius: 14px;
      display: inline-grid;
      place-items: center;
      color: var(--muted);
      background: rgba(216, 211, 230, .07);
      border: 1px solid rgba(216, 211, 230, .12);
      font-size: 22px;
    }
    .directory-item h3,
    .feature-card h3,
    .scenario-step h3,
    .case-main h3,
    .news-list h3 {
      font-size: 22px;
      line-height: 1.3;
      font-weight: 800;
      margin: 0 0 5px;
    }
    .directory-item p,
    .feature-card p,
    .scenario-step p,
    .case-main p,
    .news-list p {
      color: var(--muted);
      margin: 0;
    }

    .value-layout {
      display: grid;
      grid-template-columns: 1fr 1.3fr;
      gap: 28px;
      align-items: stretch;
    }
    .feature-nav {
      border: 1px solid var(--line);
      border-radius: var(--radius);
      background: rgba(23,16,32,.62);
      padding: 16px;
      display: grid;
      gap: 10px;
      align-content: start;
    }
    .feature-nav a {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      padding: 14px 16px;
      border-radius: 12px;
      color: var(--muted);
      border: 1px solid transparent;
      font-weight: 700;
    }
    .feature-nav a.active,
    .feature-nav a:hover {
      color: #fff;
      border-color: rgba(142,92,255,.35);
      background: rgba(142,92,255,.10);
    }
    .feature-board {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
    }
    .feature-card {
      min-height: 178px;
      padding: 22px;
      border-radius: var(--radius);
      border: 1px solid var(--line);
      background: linear-gradient(180deg, rgba(29,20,40,.88), rgba(23,16,32,.72));
      transition: transform .22s ease, border-color .22s ease, box-shadow .22s ease;
    }
    .feature-card:hover {
      transform: translateY(-3px);
      border-color: var(--line-strong);
      box-shadow: var(--glow);
    }
    .feature-card.large {
      grid-column: span 2;
      min-height: 210px;
      display: grid;
      grid-template-columns: 1fr .8fr;
      gap: 20px;
      align-items: center;
    }
    .status { color: var(--ok); font-size: 13px; font-weight: 750; }

    .scenario-section { background: #130F1A; }
    .scenario-track {
      position: relative;
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 22px;
    }
    .scenario-track::before {
      content: "";
      position: absolute;
      left: 4%;
      right: 4%;
      top: 30px;
      height: 1px;
      background: linear-gradient(90deg, transparent, rgba(216,211,230,.25), transparent);
    }
    .scenario-step {
      position: relative;
      padding: 68px 20px 22px;
      border: 1px solid var(--line);
      border-radius: var(--radius);
      background: rgba(14,11,19,.68);
      transition: border-color .22s ease, transform .22s ease;
    }
    .scenario-step:hover { transform: translateY(-3px); border-color: var(--line-strong); }
    .node {
      position: absolute;
      top: 18px;
      left: 20px;
      width: 26px;
      height: 26px;
      border-radius: 50%;
      background: radial-gradient(circle, #fff 0 12%, var(--accent) 14% 48%, rgba(142,92,255,.14) 52%);
      box-shadow: 0 0 26px rgba(142,92,255,.44);
    }
    .path { color: var(--subtle); font-size: 14px; margin-top: 10px; }

    .case-layout {
      display: grid;
      grid-template-columns: 1.35fr .85fr;
      gap: 22px;
      align-items: stretch;
    }
    .case-main,
    .case-side,
    .price-table-wrap,
    .lead-box,
    .news-wrap,
    .faq-wrap {
      border: 1px solid var(--line);
      border-radius: var(--radius);
      background: rgba(23,16,32,.70);
      box-shadow: var(--shadow);
    }
    .case-main { padding: 30px; }
    .case-side { display: grid; gap: 0; overflow: hidden; }
    .case-mini {
      padding: 24px;
      border-bottom: 1px solid rgba(216,211,230,.10);
    }
    .case-mini:last-child { border-bottom: 0; }
    .metric-row {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 12px;
      margin-top: 24px;
    }
    .metric {
      padding: 16px;
      border-radius: 12px;
      background: rgba(216,211,230,.055);
      border: 1px solid rgba(216,211,230,.10);
    }
    .metric strong { display: block; font-size: 22px; color: #fff; }
    .metric span { color: var(--subtle); font-size: 13px; }

    .price-section { background: rgba(19,15,26,.66); }
    .price-table-wrap { overflow-x: auto; }
    .price-table {
      width: 100%;
      min-width: 820px;
      border-collapse: separate;
      border-spacing: 0;
      color: var(--muted);
    }
    .price-table th,
    .price-table td {
      padding: 18px 20px;
      border-bottom: 1px solid rgba(216,211,230,.10);
      vertical-align: middle;
    }
    .price-table th {
      color: #fff;
      font-size: 18px;
      background: rgba(216,211,230,.045);
    }
    .price-table tr:last-child td { border-bottom: 0; }
    .price-table .recommended {
      color: #fff;
      background: rgba(142,92,255,.10);
      box-shadow: inset 0 0 0 1px rgba(142,92,255,.24);
    }
    .price-name { font-weight: 800; color: #fff; }
    .price-num { font-size: 28px; font-weight: 850; color: #fff; }
    .check { color: var(--ok); font-weight: 800; }
    .price-note {
      color: var(--subtle);
      font-size: 13px;
      margin-top: 16px;
    }

    .news-section { background: #0E0B13; }
    .news-wrap {
      display: grid;
      grid-template-columns: 1.25fr .75fr;
      gap: 0;
      overflow: hidden;
    }
    .news-list { padding: 24px; }
    .news-row {
      display: grid;
      grid-template-columns: 110px 1fr auto;
      gap: 18px;
      align-items: center;
      padding: 18px 0;
      border-bottom: 1px solid rgba(216,211,230,.10);
    }
    .news-row:last-child { border-bottom: 0; }
    .date-badge {
      color: var(--subtle);
      font-weight: 750;
      font-size: 14px;
    }
    .news-row h3 { font-size: 18px; margin: 0; }
    .news-row a:hover h3 { color: var(--accent); }
    .recommend-box {
      padding: 28px;
      border-left: 1px solid rgba(216,211,230,.10);
      background: linear-gradient(180deg, rgba(142,92,255,.10), rgba(201,79,124,.06));
    }
    .calendar-list {
      display: grid;
      gap: 12px;
      margin-top: 18px;
    }
    .calendar-item {
      display: flex;
      gap: 12px;
      padding: 13px;
      border-radius: 12px;
      border: 1px solid rgba(216,211,230,.11);
      background: rgba(14,11,19,.48);
    }
    .calendar-day {
      min-width: 48px;
      color: #fff;
      font-weight: 850;
    }

    .assurance-bar {
      padding: 34px 0;
      border-block: 1px solid rgba(216,211,230,.08);
      background: rgba(216,211,230,.035);
    }
    .assurance-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 14px;
    }
    .assurance-item {
      display: flex;
      gap: 12px;
      align-items: center;
      padding: 16px;
      border-radius: 14px;
      border: 1px solid rgba(216,211,230,.10);
      color: var(--muted);
      background: rgba(14,11,19,.38);
    }
    .assurance-item i { color: var(--accent); font-size: 22px; }

    .lead-section { padding-top: 84px; }
    .lead-box {
      padding: 34px;
      display: grid;
      grid-template-columns: 1fr .95fr;
      gap: 28px;
      align-items: center;
      background:
        linear-gradient(135deg, rgba(142,92,255,.16), rgba(201,79,124,.08)),
        rgba(23,16,32,.84);
    }
    .form-control {
      min-height: 48px;
      border-radius: 12px;
      border: 1px solid rgba(216,211,230,.16);
      background: rgba(14,11,19,.72);
      color: #fff;
      box-shadow: none;
    }
    .form-control::placeholder { color: rgba(143,135,158,.78); }
    .form-control:focus {
      background: rgba(14,11,19,.88);
      color: #fff;
      border-color: rgba(142,92,255,.72);
      box-shadow: 0 0 0 5px rgba(142,92,255,.14);
    }
    .form-hint { color: var(--subtle); font-size: 13px; margin-top: 10px; }

    .accordion { --bs-accordion-bg: transparent; --bs-accordion-border-color: transparent; }
    .faq-wrap { padding: 10px; box-shadow: none; }
    .accordion-item {
      color: var(--muted);
      background: rgba(23,16,32,.72);
      border: 1px solid rgba(216,211,230,.12);
      border-radius: 14px !important;
      overflow: hidden;
      margin-bottom: 12px;
    }
    .accordion-button {
      color: #fff;
      background: transparent;
      font-weight: 800;
      padding: 18px 20px;
      box-shadow: none;
    }
    .accordion-button:not(.collapsed) {
      color: #fff;
      background: rgba(142,92,255,.10);
      box-shadow: inset 0 -1px 0 rgba(216,211,230,.10);
    }
    .accordion-button::after { filter: invert(1) grayscale(1); opacity: .75; }
    .accordion-body { padding: 18px 20px 22px; color: var(--muted); }

    .site-footer {
      padding: 58px 0 28px;
      border-top: 1px solid rgba(216,211,230,.10);
      background:
        linear-gradient(180deg, rgba(14,11,19,.82), #0A080E),
        repeating-linear-gradient(90deg, rgba(216,211,230,.035) 0 1px, transparent 1px 28px);
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1.25fr repeat(3, .7fr);
      gap: 26px;
      align-items: start;
    }
    .footer-brand { max-width: 360px; color: var(--muted); }
    .footer-title { color: #fff; font-weight: 850; margin-bottom: 12px; }
    .footer-links {
      list-style: none;
      padding: 0;
      margin: 0;
      display: grid;
      gap: 9px;
    }
    .footer-links a { color: var(--subtle); }
    .footer-links a:hover { color: #fff; }
    .copyright {
      margin-top: 34px;
      padding-top: 22px;
      border-top: 1px solid rgba(216,211,230,.10);
      color: var(--subtle);
      font-size: 13px;
      display: flex;
      justify-content: space-between;
      gap: 18px;
      flex-wrap: wrap;
    }

    .modal-content {
      color: var(--text);
      background: #171020;
      border: 1px solid rgba(216,211,230,.18);
      border-radius: 18px;
      box-shadow: var(--shadow);
    }
    .modal-header,
    .modal-footer { border-color: rgba(216,211,230,.10); }
    .btn-close { filter: invert(1); opacity: .72; }

    @media (max-width: 991.98px) {
      .site-container { width: min(100% - 28px, var(--container)); }
      .site-header, .navbar { min-height: 64px; }
      .navbar-collapse {
        padding: 16px 0 18px;
        border-top: 1px solid rgba(216,211,230,.10);
        margin-top: 12px;
      }
      .nav-center { align-items: stretch; margin: 0; gap: 4px; }
      .nav-actions { flex-direction: column; align-items: stretch; margin-top: 14px; }
      .nav-actions .btn-brand,
      .nav-actions .btn-ghost { width: 100%; min-height: 48px; }
      section { padding: 72px 0; }
      .hero { min-height: auto; padding: 54px 0 46px; }
      .hero-grid,
      .directory-grid,
      .value-layout,
      .case-layout,
      .news-wrap,
      .lead-box,
      .footer-grid {
        grid-template-columns: 1fr;
      }
      .dp-cover { min-height: 390px; transform: none; }
      .cover-inner { transform: none; min-height: 390px; }
      .scenario-track { grid-template-columns: 1fr 1fr; }
      .scenario-track::before { display: none; }
      .recommend-box { border-left: 0; border-top: 1px solid rgba(216,211,230,.10); }
      .assurance-grid { grid-template-columns: 1fr 1fr; }
    }

    @media (max-width: 575.98px) {
      h1 { font-size: 36px; }
      .brand-mark { max-width: 250px; font-size: 14px; }
      .hero-actions { flex-direction: column; }
      .hero-actions .btn-brand,
      .hero-actions .btn-ghost,
      .hero-actions .btn-soft { width: 100%; min-height: 48px; }
      .hero-kpis,
      .feature-board,
      .feature-card.large,
      .scenario-track,
      .metric-row,
      .assurance-grid {
        grid-template-columns: 1fr;
      }
      .cover-inner { grid-template-columns: 1fr; padding: 22px; }
      .filter-panel { margin-top: 0; }
      .cover-note { flex-direction: column; align-items: flex-start; }
      .directory-item { grid-template-columns: 44px 1fr; }
      .directory-item .bi-arrow-right { display: none; }
      .news-row { grid-template-columns: 1fr; gap: 8px; }
      .lead-box { padding: 24px; }
      .copyright { display: block; }
    }

/* roulang page: category1 */
:root {
      --bg: #0E0B13;
      --bg-soft: #130F1A;
      --panel: #171020;
      --panel-2: #1D1428;
      --text: #F3EFFB;
      --muted: #D8D3E6;
      --subtle: #8F879E;
      --line: rgba(216, 211, 230, .13);
      --line-strong: rgba(142, 92, 255, .42);
      --amethyst: #8E5CFF;
      --rose: #C94F7C;
      --success: #74D3AE;
      --warning: #D9B66F;
      --radius: 14px;
      --radius-sm: 10px;
      --shadow: 0 18px 60px rgba(0, 0, 0, .28);
      --glow: 0 0 0 1px rgba(142, 92, 255, .22), 0 18px 54px rgba(142, 92, 255, .12);
      --container: 1200px;
      --font: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", Arial, sans-serif;
    }

    * {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      margin: 0;
      font-family: var(--font);
      color: var(--text);
      background:
        radial-gradient(circle at 18% 8%, rgba(142, 92, 255, .14), transparent 30%),
        radial-gradient(circle at 82% 18%, rgba(201, 79, 124, .09), transparent 28%),
        linear-gradient(180deg, var(--bg) 0%, #100C16 45%, #0A0810 100%);
      line-height: 1.75;
      letter-spacing: 0;
      overflow-x: hidden;
    }

    body::before {
      content: "";
      position: fixed;
      inset: 0;
      pointer-events: none;
      opacity: .18;
      background-image:
        linear-gradient(rgba(216, 211, 230, .05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(216, 211, 230, .05) 1px, transparent 1px);
      background-size: 48px 48px;
      mask-image: linear-gradient(to bottom, rgba(0,0,0,.9), transparent 75%);
      z-index: -1;
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: color .2s ease, border-color .2s ease, background .2s ease, transform .2s ease;
    }

    button,
    input,
    select {
      font: inherit;
    }

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

    ::selection {
      color: #fff;
      background: rgba(142, 92, 255, .55);
    }

    :focus-visible {
      outline: 3px solid rgba(142, 92, 255, .68);
      outline-offset: 3px;
      border-radius: 10px;
    }

    .site-container {
      width: min(100% - 40px, var(--container));
      margin-inline: auto;
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 1000;
      border-bottom: 1px solid var(--line);
      background: rgba(14, 11, 19, .86);
      backdrop-filter: blur(16px);
      box-shadow: 0 12px 34px rgba(0, 0, 0, .18);
    }

    .navbar {
      min-height: 78px;
      padding: 0;
    }

    .navbar .site-container {
      display: flex;
      align-items: center;
      gap: 28px;
    }

    .brand-mark {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      color: var(--text);
      font-weight: 800;
      font-size: 18px;
      line-height: 1.25;
      max-width: 320px;
    }

    .brand-mark::before {
      content: "";
      width: 30px;
      height: 30px;
      flex: 0 0 auto;
      border-radius: 10px;
      border: 1px solid rgba(216, 211, 230, .25);
      background:
        linear-gradient(135deg, rgba(142, 92, 255, .92), rgba(201, 79, 124, .82)),
        radial-gradient(circle at 30% 24%, #fff, transparent 26%);
      box-shadow: 0 0 24px rgba(142, 92, 255, .35);
    }

    .navbar-toggler {
      width: 44px;
      height: 44px;
      border: 1px solid var(--line);
      color: var(--text);
      border-radius: 12px;
      background: rgba(216, 211, 230, .04);
    }

    .navbar-toggler:focus {
      box-shadow: 0 0 0 .22rem rgba(142, 92, 255, .28);
    }

    .navbar-toggler i {
      font-size: 24px;
    }

    .navbar-collapse {
      align-items: center;
      justify-content: space-between;
      gap: 24px;
    }

    .nav-center {
      display: flex;
      align-items: center;
      gap: 8px;
      margin-left: 32px;
    }

    .nav-link {
      position: relative;
      color: var(--muted);
      font-size: 15px;
      font-weight: 600;
      padding: 26px 14px !important;
      border-radius: 0;
    }

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

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

    .nav-link.active::after {
      content: "";
      position: absolute;
      left: 14px;
      right: 14px;
      bottom: 18px;
      height: 2px;
      border-radius: 999px;
      background: linear-gradient(90deg, var(--amethyst), var(--rose));
      box-shadow: 0 0 18px rgba(142, 92, 255, .46);
    }

    .nav-actions {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-left: auto;
    }

    .btn-brand,
    .btn-ghost,
    .btn-soft,
    .btn-line {
      min-height: 46px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      border-radius: 999px;
      padding: 10px 18px;
      border: 1px solid transparent;
      font-weight: 700;
      font-size: 15px;
      transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease, background .2s ease, color .2s ease;
      cursor: pointer;
      white-space: nowrap;
    }

    .btn-brand {
      color: #fff;
      background: linear-gradient(135deg, var(--amethyst), var(--rose));
      box-shadow: 0 14px 34px rgba(142, 92, 255, .2);
    }

    .btn-brand:hover,
    .btn-brand:focus {
      color: #fff;
      transform: translateY(-2px);
      border-color: rgba(255, 255, 255, .24);
      box-shadow: 0 18px 44px rgba(142, 92, 255, .32);
    }

    .btn-ghost,
    .btn-line {
      color: var(--muted);
      background: rgba(216, 211, 230, .04);
      border-color: var(--line);
    }

    .btn-ghost:hover,
    .btn-line:hover {
      color: #fff;
      background: rgba(142, 92, 255, .12);
      border-color: rgba(142, 92, 255, .45);
      transform: translateY(-2px);
    }

    .btn-soft {
      color: #fff;
      background: rgba(142, 92, 255, .16);
      border-color: rgba(142, 92, 255, .28);
    }

    .btn-soft:hover {
      color: #fff;
      background: rgba(142, 92, 255, .24);
      transform: translateY(-2px);
    }

    .page-hero {
      position: relative;
      padding: 76px 0 44px;
      overflow: hidden;
      border-bottom: 1px solid var(--line);
      background:
        linear-gradient(135deg, rgba(23, 16, 32, .94), rgba(14, 11, 19, .84)),
        radial-gradient(circle at 70% 12%, rgba(142, 92, 255, .2), transparent 34%);
    }

    .page-hero::after {
      content: "";
      position: absolute;
      right: 7%;
      top: 48px;
      width: 220px;
      height: 220px;
      border: 1px solid rgba(216, 211, 230, .09);
      border-radius: 50%;
      background:
        linear-gradient(90deg, transparent 49%, rgba(216, 211, 230, .09) 50%, transparent 51%),
        linear-gradient(0deg, transparent 49%, rgba(216, 211, 230, .07) 50%, transparent 51%);
      opacity: .55;
      animation: floatPanel 8s ease-in-out infinite;
    }

    @keyframes floatPanel {
      0%, 100% { transform: translateY(0); }
      50% { transform: translateY(12px); }
    }

    .breadcrumb {
      margin: 0 0 22px;
      --bs-breadcrumb-divider-color: rgba(216, 211, 230, .42);
    }

    .breadcrumb-item,
    .breadcrumb-item a {
      color: var(--subtle);
      font-size: 14px;
      font-weight: 600;
    }

    .breadcrumb-item.active {
      color: var(--muted);
    }

    .breadcrumb-item + .breadcrumb-item::before {
      color: rgba(216, 211, 230, .42);
    }

    .hero-grid {
      display: grid;
      grid-template-columns: minmax(0, 1.05fr) minmax(320px, .65fr);
      gap: 44px;
      align-items: center;
    }

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      margin-bottom: 14px;
      color: var(--muted);
      font-size: 14px;
      font-weight: 700;
      border: 1px solid rgba(216, 211, 230, .14);
      border-radius: 999px;
      padding: 7px 12px;
      background: rgba(216, 211, 230, .04);
    }

    h1 {
      margin: 0;
      max-width: 760px;
      color: #fff;
      font-size: clamp(34px, 5vw, 58px);
      line-height: 1.12;
      font-weight: 800;
      letter-spacing: 0;
    }

    .hero-copy {
      max-width: 720px;
      margin: 18px 0 0;
      color: var(--muted);
      font-size: 18px;
      line-height: 1.8;
    }

    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-top: 28px;
    }

    .hero-note {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-top: 22px;
    }

    .tag {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      min-height: 30px;
      padding: 5px 10px;
      border: 1px solid rgba(216, 211, 230, .15);
      border-radius: 999px;
      color: var(--muted);
      font-size: 13px;
      font-weight: 650;
      background: rgba(216, 211, 230, .035);
    }

    .tag.purple {
      color: #E4D9FF;
      border-color: rgba(142, 92, 255, .32);
      background: rgba(142, 92, 255, .12);
    }

    .tag.rose {
      color: #FFD8E5;
      border-color: rgba(201, 79, 124, .34);
      background: rgba(201, 79, 124, .12);
    }

    .hero-demo {
      position: relative;
      border: 1px solid rgba(216, 211, 230, .16);
      border-radius: 18px;
      background: linear-gradient(180deg, rgba(29, 20, 40, .9), rgba(14, 11, 19, .72));
      box-shadow: var(--shadow);
      padding: 18px;
      overflow: hidden;
    }

    .hero-demo::before {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(110deg, transparent 0%, rgba(255,255,255,.08) 42%, transparent 52%);
      transform: translateX(-120%);
      animation: scanLine 6s ease-in-out infinite;
    }

    @keyframes scanLine {
      0%, 48% { transform: translateX(-120%); }
      72%, 100% { transform: translateX(120%); }
    }

    .demo-top {
      position: relative;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 14px;
      padding-bottom: 14px;
      border-bottom: 1px solid var(--line);
    }

    .demo-title {
      font-weight: 800;
      color: #fff;
    }

    .demo-status {
      color: var(--success);
      font-size: 13px;
      font-weight: 700;
    }

    .demo-lines {
      position: relative;
      display: grid;
      gap: 12px;
      padding-top: 16px;
    }

    .demo-line {
      display: grid;
      grid-template-columns: 46px 1fr auto;
      gap: 12px;
      align-items: center;
      padding: 12px;
      border: 1px solid rgba(216, 211, 230, .1);
      border-radius: 13px;
      background: rgba(216, 211, 230, .035);
    }

    .demo-mark {
      width: 46px;
      height: 46px;
      border-radius: 12px;
      border: 1px solid rgba(142, 92, 255, .28);
      background: linear-gradient(135deg, rgba(142, 92, 255, .3), rgba(201, 79, 124, .16));
      display: grid;
      place-items: center;
      color: #fff;
      font-size: 20px;
    }

    .demo-line strong {
      display: block;
      color: #fff;
      font-size: 15px;
      line-height: 1.35;
    }

    .demo-line span {
      display: block;
      color: var(--subtle);
      font-size: 13px;
      margin-top: 2px;
    }

    .section {
      padding: 78px 0;
    }

    .section.alt {
      background: rgba(19, 15, 26, .78);
      border-top: 1px solid var(--line);
      border-bottom: 1px solid var(--line);
    }

    .section-head {
      display: flex;
      align-items: end;
      justify-content: space-between;
      gap: 28px;
      margin-bottom: 30px;
    }

    .section-kicker {
      color: var(--amethyst);
      font-weight: 800;
      font-size: 14px;
      margin-bottom: 8px;
    }

    h2 {
      margin: 0;
      color: #fff;
      font-size: clamp(30px, 4vw, 42px);
      line-height: 1.22;
      font-weight: 800;
      letter-spacing: 0;
    }

    .section-desc {
      max-width: 560px;
      margin: 0;
      color: var(--muted);
      font-size: 16px;
    }

    .filter-shell {
      border: 1px solid var(--line);
      border-radius: 18px;
      background: linear-gradient(180deg, rgba(23, 16, 32, .9), rgba(14, 11, 19, .72));
      box-shadow: var(--shadow);
      overflow: hidden;
    }

    .filter-bar {
      display: grid;
      grid-template-columns: 1.1fr .9fr .9fr .9fr auto;
      gap: 12px;
      padding: 18px;
      border-bottom: 1px solid var(--line);
    }

    .form-label {
      color: var(--subtle);
      font-size: 13px;
      font-weight: 700;
      margin-bottom: 6px;
    }

    .form-control,
    .form-select {
      min-height: 46px;
      color: var(--text);
      border: 1px solid rgba(216, 211, 230, .14);
      border-radius: 12px;
      background-color: rgba(14, 11, 19, .78);
      box-shadow: none;
    }

    .form-control::placeholder {
      color: rgba(143, 135, 158, .78);
    }

    .form-control:focus,
    .form-select:focus {
      color: var(--text);
      background-color: rgba(14, 11, 19, .9);
      border-color: rgba(142, 92, 255, .75);
      box-shadow: 0 0 0 .22rem rgba(142, 92, 255, .18);
    }

    .form-select {
      background-image:
        linear-gradient(45deg, transparent 50%, #D8D3E6 50%),
        linear-gradient(135deg, #D8D3E6 50%, transparent 50%);
      background-position:
        calc(100% - 18px) 20px,
        calc(100% - 13px) 20px;
      background-size: 5px 5px, 5px 5px;
      background-repeat: no-repeat;
    }

    .filter-summary {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 18px;
      padding: 14px 18px;
      color: var(--muted);
      font-size: 14px;
      background: rgba(216, 211, 230, .025);
    }

    .content-layout {
      display: grid;
      grid-template-columns: minmax(0, 1fr) 330px;
      gap: 24px;
      margin-top: 28px;
      align-items: start;
    }

    .result-list {
      display: grid;
      gap: 16px;
    }

    .result-card {
      position: relative;
      display: grid;
      grid-template-columns: 96px minmax(0, 1fr) auto;
      gap: 18px;
      align-items: center;
      padding: 18px;
      border: 1px solid rgba(216, 211, 230, .12);
      border-radius: 16px;
      background: linear-gradient(180deg, rgba(23, 16, 32, .9), rgba(19, 15, 26, .76));
      box-shadow: 0 14px 40px rgba(0, 0, 0, .18);
      transition: transform .2s ease, border-color .2s ease, box-shadow .2s ease;
      overflow: hidden;
    }

    .result-card:hover {
      transform: translateY(-3px);
      border-color: rgba(142, 92, 255, .48);
      box-shadow: var(--glow);
    }

    .result-card:hover .result-title {
      color: #DCCEFF;
    }

    .abstract-thumb {
      width: 96px;
      height: 96px;
      border-radius: 14px;
      border: 1px solid rgba(216, 211, 230, .13);
      background:
        radial-gradient(circle at 32% 22%, rgba(216, 211, 230, .32), transparent 18%),
        linear-gradient(135deg, rgba(142, 92, 255, .32), rgba(201, 79, 124, .16) 58%, rgba(14, 11, 19, .88));
      display: grid;
      place-items: center;
      color: rgba(255, 255, 255, .86);
      font-size: 28px;
      flex: 0 0 auto;
    }

    .result-title {
      margin: 0 0 7px;
      color: #fff;
      font-size: 21px;
      line-height: 1.35;
      font-weight: 800;
      transition: color .2s ease;
    }

    .result-text {
      margin: 0;
      max-width: 680px;
      color: var(--muted);
      font-size: 15px;
      line-height: 1.7;
    }

    .meta-row {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-top: 12px;
    }

    .meta {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      color: var(--subtle);
      font-size: 13px;
      font-weight: 650;
    }

    .result-actions {
      display: grid;
      gap: 10px;
      justify-items: end;
    }

    .mini-btn {
      min-height: 40px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 7px;
      padding: 8px 13px;
      border-radius: 999px;
      color: #fff;
      font-size: 14px;
      font-weight: 750;
      border: 1px solid rgba(142, 92, 255, .34);
      background: rgba(142, 92, 255, .16);
      transition: transform .2s ease, background .2s ease, border-color .2s ease;
    }

    .mini-btn:hover {
      color: #fff;
      background: rgba(142, 92, 255, .26);
      border-color: rgba(142, 92, 255, .62);
      transform: translateY(-2px);
    }

    .side-stack {
      display: grid;
      gap: 16px;
      position: sticky;
      top: 104px;
    }

    .side-card,
    .empty-state,
    .rule-panel,
    .cta-panel {
      border: 1px solid rgba(216, 211, 230, .12);
      border-radius: 16px;
      background: linear-gradient(180deg, rgba(23, 16, 32, .9), rgba(14, 11, 19, .76));
      box-shadow: 0 14px 44px rgba(0, 0, 0, .18);
    }

    .side-card {
      padding: 18px;
    }

    .side-title {
      display: flex;
      align-items: center;
      gap: 9px;
      margin-bottom: 14px;
      color: #fff;
      font-size: 17px;
      font-weight: 800;
    }

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

    .side-list li {
      display: flex;
      justify-content: space-between;
      gap: 12px;
      padding-bottom: 10px;
      border-bottom: 1px solid rgba(216, 211, 230, .08);
      color: var(--muted);
      font-size: 14px;
    }

    .side-list li:last-child {
      border-bottom: 0;
      padding-bottom: 0;
    }

    .side-list b {
      color: #fff;
      font-weight: 750;
    }

    .tag-cloud {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
    }

    .rule-panel {
      padding: 24px;
      margin-top: 28px;
    }

    .rule-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 14px;
    }

    .rule-item {
      padding: 16px;
      border: 1px solid rgba(216, 211, 230, .1);
      border-radius: 14px;
      background: rgba(216, 211, 230, .035);
    }

    .rule-item i {
      color: var(--amethyst);
      font-size: 22px;
    }

    .rule-item strong {
      display: block;
      margin: 8px 0 4px;
      color: #fff;
      font-size: 16px;
    }

    .rule-item p {
      margin: 0;
      color: var(--muted);
      font-size: 14px;
      line-height: 1.65;
    }

    .pagination-wrap {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 18px;
      margin-top: 24px;
      flex-wrap: wrap;
    }

    .page-link {
      min-width: 42px;
      min-height: 42px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      color: var(--muted);
      border: 1px solid rgba(216, 211, 230, .12);
      background: rgba(23, 16, 32, .86);
      border-radius: 12px !important;
      margin: 0 4px;
      font-weight: 750;
    }

    .page-link:hover,
    .page-link:focus {
      color: #fff;
      background: rgba(142, 92, 255, .18);
      border-color: rgba(142, 92, 255, .5);
      box-shadow: none;
    }

    .page-item.active .page-link {
      color: #fff;
      border-color: rgba(142, 92, 255, .76);
      background: linear-gradient(135deg, var(--amethyst), var(--rose));
    }

    .page-item.disabled .page-link {
      color: rgba(143, 135, 158, .46);
      background: rgba(216, 211, 230, .025);
      border-color: rgba(216, 211, 230, .08);
    }

    .empty-state {
      display: none;
      padding: 28px;
      margin-top: 18px;
      text-align: center;
    }

    .empty-state i {
      color: var(--subtle);
      font-size: 34px;
    }

    .empty-state h3 {
      margin: 12px 0 6px;
      color: #fff;
      font-size: 22px;
      font-weight: 800;
    }

    .empty-state p {
      margin: 0 auto 18px;
      max-width: 520px;
      color: var(--muted);
    }

    .process-wrap {
      position: relative;
      display: grid;
      gap: 18px;
      margin-top: 30px;
    }

    .process-wrap::before {
      content: "";
      position: absolute;
      left: 25px;
      top: 16px;
      bottom: 16px;
      width: 1px;
      background: linear-gradient(180deg, rgba(142, 92, 255, .6), rgba(216, 211, 230, .08));
    }

    .process-item {
      position: relative;
      display: grid;
      grid-template-columns: 52px minmax(0, 1fr);
      gap: 18px;
      align-items: start;
    }

    .process-dot {
      width: 52px;
      height: 52px;
      display: grid;
      place-items: center;
      border-radius: 50%;
      color: #fff;
      font-weight: 800;
      border: 1px solid rgba(142, 92, 255, .46);
      background: radial-gradient(circle, rgba(142, 92, 255, .32), rgba(23, 16, 32, .9));
      box-shadow: 0 0 24px rgba(142, 92, 255, .22);
      z-index: 1;
    }

    .process-card {
      padding: 18px;
      border: 1px solid rgba(216, 211, 230, .12);
      border-radius: 16px;
      background: rgba(23, 16, 32, .72);
    }

    .process-card h3 {
      margin: 0 0 8px;
      color: #fff;
      font-size: 21px;
      font-weight: 800;
    }

    .process-card p {
      margin: 0;
      color: var(--muted);
      font-size: 15px;
    }

    .accordion {
      --bs-accordion-bg: transparent;
      --bs-accordion-border-color: transparent;
      display: grid;
      gap: 12px;
    }

    .accordion-item {
      overflow: hidden;
      border: 1px solid rgba(216, 211, 230, .12);
      border-radius: 14px !important;
      background: rgba(23, 16, 32, .78);
    }

    .accordion-button {
      color: #fff;
      font-weight: 800;
      background: rgba(216, 211, 230, .025);
      padding: 18px 20px;
      box-shadow: none;
    }

    .accordion-button:not(.collapsed) {
      color: #fff;
      background: rgba(142, 92, 255, .12);
      box-shadow: inset 0 -1px 0 rgba(142, 92, 255, .28);
    }

    .accordion-button::after {
      filter: invert(1) grayscale(1);
      opacity: .76;
    }

    .accordion-button:focus {
      border-color: rgba(142, 92, 255, .55);
      box-shadow: 0 0 0 .22rem rgba(142, 92, 255, .18);
    }

    .accordion-body {
      color: var(--muted);
      padding: 18px 20px 20px;
      line-height: 1.75;
    }

    .cta-panel {
      position: relative;
      overflow: hidden;
      padding: 32px;
      background:
        linear-gradient(135deg, rgba(142, 92, 255, .18), rgba(201, 79, 124, .12)),
        linear-gradient(180deg, rgba(23, 16, 32, .92), rgba(14, 11, 19, .84));
    }

    .cta-panel::after {
      content: "";
      position: absolute;
      right: -70px;
      top: -70px;
      width: 220px;
      height: 220px;
      border: 1px solid rgba(216, 211, 230, .11);
      border-radius: 50%;
    }

    .cta-inner {
      position: relative;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 24px;
      z-index: 1;
    }

    .cta-panel h2 {
      max-width: 680px;
    }

    .cta-panel p {
      margin: 12px 0 0;
      max-width: 680px;
      color: var(--muted);
    }

    .site-footer {
      padding: 58px 0 28px;
      background: #09070D;
      border-top: 1px solid var(--line);
    }

    .footer-grid {
      display: grid;
      grid-template-columns: minmax(260px, 1.2fr) repeat(3, minmax(140px, .6fr));
      gap: 34px;
    }

    .footer-brand p {
      max-width: 430px;
      margin: 0;
      color: var(--subtle);
      font-size: 14px;
      line-height: 1.8;
    }

    .footer-title {
      margin-bottom: 12px;
      color: #fff;
      font-weight: 800;
      font-size: 15px;
    }

    .footer-links {
      list-style: none;
      padding: 0;
      margin: 0;
      display: grid;
      gap: 8px;
    }

    .footer-links a {
      color: var(--subtle);
      font-size: 14px;
    }

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

    .copyright {
      display: flex;
      justify-content: space-between;
      gap: 18px;
      margin-top: 36px;
      padding-top: 18px;
      border-top: 1px solid rgba(216, 211, 230, .08);
      color: rgba(143, 135, 158, .9);
      font-size: 13px;
    }

    .modal-content {
      color: var(--text);
      border: 1px solid rgba(216, 211, 230, .14);
      border-radius: 18px;
      background: linear-gradient(180deg, #171020, #0E0B13);
      box-shadow: var(--shadow);
    }

    .modal-header,
    .modal-footer {
      border-color: rgba(216, 211, 230, .1);
    }

    .modal-title {
      color: #fff;
      font-weight: 800;
    }

    .btn-close {
      filter: invert(1) grayscale(1);
      opacity: .72;
    }

    .modal-body {
      color: var(--muted);
    }

    @media (max-width: 991.98px) {
      .navbar {
        min-height: 64px;
      }

      .navbar .site-container {
        flex-wrap: wrap;
        gap: 0;
        width: min(100% - 28px, var(--container));
      }

      .brand-mark {
        font-size: 16px;
        max-width: calc(100% - 60px);
      }

      .navbar-collapse {
        width: 100%;
        padding: 14px 0 18px;
      }

      .nav-center {
        margin-left: 0;
        gap: 2px;
        padding: 8px 0 12px;
      }

      .nav-link {
        padding: 12px 0 !important;
      }

      .nav-link.active::after {
        left: 0;
        right: auto;
        bottom: 8px;
        width: 42px;
      }

      .nav-actions {
        width: 100%;
        flex-direction: column;
        align-items: stretch;
        margin-left: 0;
      }

      .nav-actions .btn-ghost,
      .nav-actions .btn-brand {
        width: 100%;
        min-height: 48px;
      }

      .page-hero {
        padding: 48px 0 34px;
      }

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

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

      .section {
        padding: 58px 0;
      }

      .section-head {
        display: block;
      }

      .section-desc {
        margin-top: 12px;
      }

      .filter-bar {
        grid-template-columns: 1fr 1fr;
      }

      .filter-bar .filter-action {
        grid-column: 1 / -1;
      }

      .filter-bar .filter-action .btn-brand {
        width: 100%;
      }

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

      .side-stack {
        position: static;
        grid-template-columns: 1fr 1fr;
      }

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

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

      .cta-inner {
        display: block;
      }

      .cta-inner .hero-actions {
        margin-top: 22px;
      }
    }

    @media (max-width: 575.98px) {
      .site-container {
        width: min(100% - 28px, var(--container));
      }

      h1 {
        font-size: 36px;
      }

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

      .hero-actions,
      .filter-summary,
      .pagination-wrap {
        flex-direction: column;
        align-items: stretch;
      }

      .hero-actions .btn-brand,
      .hero-actions .btn-ghost,
      .hero-actions .btn-line,
      .hero-actions .btn-soft {
        width: 100%;
        min-height: 48px;
      }

      .demo-line {
        grid-template-columns: 42px 1fr;
      }

      .demo-line .tag {
        grid-column: 1 / -1;
        width: fit-content;
      }

      .filter-bar {
        grid-template-columns: 1fr;
      }

      .result-card {
        grid-template-columns: 1fr;
      }

      .abstract-thumb {
        width: 100%;
        height: 86px;
      }

      .result-actions {
        justify-items: stretch;
      }

      .mini-btn {
        width: 100%;
        min-height: 44px;
      }

      .side-stack {
        grid-template-columns: 1fr;
      }

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

      .process-item {
        grid-template-columns: 42px minmax(0, 1fr);
        gap: 14px;
      }

      .process-dot {
        width: 42px;
        height: 42px;
      }

      .process-wrap::before {
        left: 20px;
      }

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

      .copyright {
        display: grid;
      }

      .cta-panel {
        padding: 24px;
      }
    }