/* roulang page: index */
:root {
      --bg: #f6f7fb;
      --bg-soft: #eef2f7;
      --surface: #ffffff;
      --surface-dark: #101827;
      --surface-dark-2: #172033;
      --primary: #7c3aed;
      --primary-600: #6d28d9;
      --primary-50: #f3e8ff;
      --accent: #06b6d4;
      --accent-2: #f59e0b;
      --success: #10b981;
      --danger: #ef4444;
      --text: #172033;
      --text-strong: #0f172a;
      --muted: #64748b;
      --muted-2: #94a3b8;
      --line: #e2e8f0;
      --line-dark: rgba(255,255,255,.12);
      --radius-sm: 10px;
      --radius: 18px;
      --radius-lg: 28px;
      --shadow-sm: 0 8px 24px rgba(15, 23, 42, .08);
      --shadow: 0 18px 50px rgba(15, 23, 42, .12);
      --shadow-dark: 0 24px 70px rgba(0, 0, 0, .28);
      --container: 1180px;
      --header-h: 76px;
      --ease: cubic-bezier(.22, .61, .36, 1);
    }

    * {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
      text-size-adjust: 100%;
    }

    body {
      margin: 0;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;
      color: var(--text);
      background:
        radial-gradient(circle at 8% 0%, rgba(124, 58, 237, .10), transparent 32%),
        radial-gradient(circle at 92% 8%, rgba(6, 182, 212, .12), transparent 30%),
        linear-gradient(180deg, #fbfcff 0%, var(--bg) 52%, #f8fafc 100%);
      line-height: 1.75;
      min-height: 100vh;
      overflow-x: hidden;
    }

    body.menu-open {
      overflow: hidden;
    }

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

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

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

    button {
      cursor: pointer;
      border: 0;
    }

    input,
    textarea,
    select {
      width: 100%;
      border: 1px solid var(--line);
      background: #fff;
      color: var(--text);
      border-radius: 14px;
      padding: 13px 14px;
      outline: none;
      transition: border-color .2s var(--ease), box-shadow .2s var(--ease), background .2s var(--ease);
    }

    textarea {
      resize: vertical;
      min-height: 112px;
    }

    input:focus,
    textarea:focus,
    select:focus {
      border-color: rgba(124, 58, 237, .58);
      box-shadow: 0 0 0 4px rgba(124, 58, 237, .12);
    }

    ::selection {
      background: rgba(124, 58, 237, .18);
      color: var(--text-strong);
    }

    .container {
      width: min(var(--container), calc(100% - 40px));
      margin: 0 auto;
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 50;
      padding: 12px 0;
      backdrop-filter: blur(18px);
      background: rgba(246, 247, 251, .78);
      border-bottom: 1px solid rgba(226, 232, 240, .72);
    }

    .toolbar {
      height: calc(var(--header-h) - 18px);
      display: grid;
      grid-template-columns: auto 1fr auto;
      align-items: center;
      gap: 18px;
      background: rgba(255,255,255,.86);
      border: 1px solid rgba(226,232,240,.9);
      box-shadow: var(--shadow-sm);
      border-radius: 22px;
      padding: 10px 12px 10px 16px;
    }

    .brand {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      min-width: max-content;
      font-weight: 900;
      letter-spacing: .04em;
      color: var(--text-strong);
    }

    .brand-mark {
      width: 38px;
      height: 38px;
      display: grid;
      place-items: center;
      color: #fff;
      border-radius: 14px;
      background:
        linear-gradient(135deg, rgba(124,58,237,1), rgba(6,182,212,.92));
      box-shadow: 0 12px 26px rgba(124,58,237,.28);
      font-weight: 900;
    }

    .brand-name {
      font-size: 19px;
    }

    .nav-center {
      display: flex;
      align-items: center;
      gap: 12px;
      justify-self: center;
      min-width: 0;
    }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 8px;
      padding: 4px;
      background: #f1f5f9;
      border: 1px solid rgba(226, 232, 240, .86);
      border-radius: 16px;
    }

    .nav-link {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      min-height: 36px;
      padding: 8px 14px;
      border-radius: 12px;
      color: var(--muted);
      font-size: 14px;
      font-weight: 700;
      white-space: nowrap;
    }

    .nav-link:hover,
    .nav-link:focus-visible {
      color: var(--primary);
      background: rgba(124, 58, 237, .08);
      outline: none;
    }

    .nav-link.active {
      color: var(--text-strong);
      background: #fff;
      box-shadow: 0 5px 14px rgba(15, 23, 42, .08);
    }

    .search-box {
      display: flex;
      align-items: center;
      gap: 8px;
      width: 278px;
      padding: 9px 12px;
      border: 1px solid var(--line);
      background: #fff;
      border-radius: 16px;
      color: var(--muted);
    }

    .search-box input {
      border: 0;
      padding: 0;
      border-radius: 0;
      background: transparent;
      font-size: 14px;
      box-shadow: none;
    }

    .search-box input:focus {
      box-shadow: none;
    }

    .toolbar-actions {
      display: flex;
      align-items: center;
      justify-content: flex-end;
      gap: 10px;
    }

    .status-pill {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 9px 12px;
      border-radius: 999px;
      background: #ecfdf5;
      color: #047857;
      font-size: 13px;
      font-weight: 800;
      border: 1px solid rgba(16,185,129,.2);
      white-space: nowrap;
    }

    .status-dot {
      width: 8px;
      height: 8px;
      border-radius: 999px;
      background: var(--success);
      box-shadow: 0 0 0 5px rgba(16, 185, 129, .12);
    }

    .icon-btn {
      width: 40px;
      height: 40px;
      display: grid;
      place-items: center;
      border-radius: 14px;
      background: #f8fafc;
      color: var(--muted);
      border: 1px solid var(--line);
      transition: transform .2s var(--ease), background .2s var(--ease), color .2s var(--ease), box-shadow .2s var(--ease);
    }

    .icon-btn:hover,
    .icon-btn:focus-visible {
      transform: translateY(-1px);
      background: var(--primary-50);
      color: var(--primary);
      box-shadow: 0 10px 20px rgba(124,58,237,.12);
      outline: none;
    }

    .menu-toggle {
      display: none;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 9px;
      min-height: 46px;
      padding: 12px 18px;
      border-radius: 15px;
      font-weight: 850;
      line-height: 1.2;
      border: 1px solid transparent;
      transition: transform .2s var(--ease), box-shadow .2s var(--ease), background .2s var(--ease), color .2s var(--ease), border-color .2s var(--ease);
      white-space: nowrap;
    }

    .btn:hover {
      transform: translateY(-2px);
    }

    .btn:focus-visible {
      outline: 4px solid rgba(124, 58, 237, .18);
      outline-offset: 2px;
    }

    .btn-primary {
      color: #fff;
      background: linear-gradient(135deg, var(--primary), #4f46e5);
      box-shadow: 0 14px 30px rgba(124, 58, 237, .30);
    }

    .btn-primary:hover {
      box-shadow: 0 18px 38px rgba(124, 58, 237, .36);
    }

    .btn-secondary {
      color: var(--text-strong);
      background: #fff;
      border-color: var(--line);
      box-shadow: 0 10px 20px rgba(15, 23, 42, .07);
    }

    .btn-secondary:hover {
      border-color: rgba(124, 58, 237, .24);
      color: var(--primary);
      box-shadow: 0 16px 30px rgba(15, 23, 42, .10);
    }

    .btn-ghost {
      color: #e2e8f0;
      border-color: rgba(255,255,255,.16);
      background: rgba(255,255,255,.08);
    }

    .btn-ghost:hover {
      background: rgba(255,255,255,.14);
      border-color: rgba(255,255,255,.26);
    }

    .btn-small {
      min-height: 38px;
      padding: 9px 12px;
      border-radius: 12px;
      font-size: 14px;
    }

    main {
      overflow: hidden;
    }

    .section {
      padding: 82px 0;
      position: relative;
    }

    .section.compact {
      padding: 58px 0;
    }

    .section-band {
      background: rgba(255,255,255,.72);
      border-top: 1px solid rgba(226,232,240,.72);
      border-bottom: 1px solid rgba(226,232,240,.72);
    }

    .section-dark {
      background:
        radial-gradient(circle at 12% 8%, rgba(124,58,237,.24), transparent 36%),
        radial-gradient(circle at 88% 70%, rgba(6,182,212,.18), transparent 34%),
        #0f172a;
      color: #e5e7eb;
    }

    .section-heading {
      max-width: 760px;
      margin-bottom: 30px;
    }

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 7px 11px;
      margin-bottom: 14px;
      border-radius: 999px;
      color: var(--primary);
      background: rgba(124,58,237,.09);
      border: 1px solid rgba(124,58,237,.16);
      font-size: 13px;
      font-weight: 850;
      letter-spacing: .02em;
    }

    .section-dark .eyebrow {
      color: #c4b5fd;
      background: rgba(255,255,255,.08);
      border-color: rgba(255,255,255,.14);
    }

    .section-title {
      margin: 0 0 14px;
      color: var(--text-strong);
      font-size: clamp(28px, 3.2vw, 44px);
      line-height: 1.18;
      letter-spacing: -.04em;
    }

    .section-dark .section-title {
      color: #fff;
    }

    .section-desc {
      margin: 0;
      color: var(--muted);
      font-size: 17px;
      line-height: 1.85;
    }

    .section-dark .section-desc {
      color: #cbd5e1;
    }

    .hero {
      padding: 34px 0 72px;
    }

    .hero-panel {
      position: relative;
      display: grid;
      grid-template-columns: minmax(0, 1.02fr) minmax(360px, .78fr);
      gap: 22px;
      min-height: 520px;
      padding: 26px;
      border-radius: 34px;
      background:
        linear-gradient(135deg, rgba(16,24,39,.98), rgba(23,32,51,.96)),
        radial-gradient(circle at 20% 20%, rgba(124,58,237,.32), transparent 32%);
      box-shadow: var(--shadow-dark);
      border: 1px solid rgba(255,255,255,.10);
      overflow: hidden;
      isolation: isolate;
    }

    .hero-panel::before {
      content: "";
      position: absolute;
      inset: -40% -20% auto auto;
      width: 520px;
      height: 520px;
      border-radius: 50%;
      background: radial-gradient(circle, rgba(124,58,237,.38), transparent 65%);
      z-index: -1;
    }

    .hero-panel::after {
      content: "";
      position: absolute;
      inset: auto auto -42% -18%;
      width: 440px;
      height: 440px;
      border-radius: 50%;
      background: radial-gradient(circle, rgba(6,182,212,.22), transparent 68%);
      z-index: -1;
    }

    .hero-entry {
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      padding: clamp(22px, 4vw, 48px);
      border-radius: 26px;
      background:
        linear-gradient(180deg, rgba(255,255,255,.09), rgba(255,255,255,.045));
      border: 1px solid rgba(255,255,255,.12);
      min-width: 0;
    }

    .hero-kicker {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-bottom: 22px;
    }

    .badge {
      display: inline-flex;
      align-items: center;
      gap: 7px;
      border-radius: 999px;
      padding: 7px 11px;
      background: rgba(255,255,255,.10);
      color: #e2e8f0;
      border: 1px solid rgba(255,255,255,.13);
      font-size: 13px;
      font-weight: 800;
      line-height: 1.2;
    }

    .badge.light {
      color: var(--primary);
      background: var(--primary-50);
      border-color: rgba(124,58,237,.16);
    }

    .badge.cyan {
      color: #0891b2;
      background: #ecfeff;
      border-color: rgba(6,182,212,.18);
    }

    .badge.gold {
      color: #b45309;
      background: #fffbeb;
      border-color: rgba(245,158,11,.22);
    }

    .hero h1 {
      margin: 0;
      color: #fff;
      font-size: clamp(38px, 5.5vw, 72px);
      line-height: 1.05;
      letter-spacing: -.07em;
      max-width: 860px;
    }

    .hero-intro {
      margin: 22px 0 0;
      max-width: 720px;
      color: #cbd5e1;
      font-size: clamp(17px, 2vw, 20px);
      line-height: 1.9;
    }

    .hero-bottom {
      display: grid;
      grid-template-columns: auto 1fr;
      gap: 22px;
      align-items: end;
      margin-top: 42px;
    }

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

    .hero-metrics {
      display: grid;
      grid-template-columns: repeat(3, minmax(100px, 1fr));
      gap: 10px;
      min-width: 0;
    }

    .metric-tile {
      padding: 15px;
      border-radius: 18px;
      background: rgba(255,255,255,.08);
      border: 1px solid rgba(255,255,255,.12);
    }

    .metric-value {
      display: block;
      color: #fff;
      font-weight: 950;
      font-size: 25px;
      letter-spacing: -.04em;
      line-height: 1.1;
    }

    .metric-label {
      display: block;
      margin-top: 7px;
      color: #94a3b8;
      font-size: 13px;
      line-height: 1.45;
    }

    .hero-board {
      display: grid;
      grid-template-rows: auto 1fr auto;
      gap: 16px;
      padding: 20px;
      border-radius: 26px;
      background: rgba(248,250,252,.95);
      color: var(--text);
      box-shadow: inset 0 1px 0 rgba(255,255,255,.6);
      min-width: 0;
    }

    .board-head {
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 12px;
      padding-bottom: 14px;
      border-bottom: 1px solid var(--line);
    }

    .board-title {
      margin: 0;
      color: var(--text-strong);
      font-size: 18px;
      letter-spacing: -.02em;
    }

    .board-time {
      color: var(--muted);
      font-size: 13px;
      font-weight: 700;
    }

    .rank-list {
      display: grid;
      gap: 12px;
      margin: 0;
      padding: 0;
      list-style: none;
    }

    .rank-item {
      display: grid;
      grid-template-columns: 34px 1fr auto;
      gap: 12px;
      align-items: center;
      padding: 13px;
      border-radius: 18px;
      background: #fff;
      border: 1px solid rgba(226,232,240,.9);
      transition: transform .2s var(--ease), box-shadow .2s var(--ease), border-color .2s var(--ease);
    }

    .rank-item:hover {
      transform: translateY(-2px);
      box-shadow: var(--shadow-sm);
      border-color: rgba(124,58,237,.24);
    }

    .rank-no {
      width: 34px;
      height: 34px;
      display: grid;
      place-items: center;
      border-radius: 12px;
      color: var(--primary);
      background: var(--primary-50);
      font-weight: 950;
    }

    .rank-name {
      display: block;
      color: var(--text-strong);
      font-weight: 900;
      line-height: 1.3;
    }

    .rank-copy {
      display: block;
      margin-top: 3px;
      color: var(--muted);
      font-size: 13px;
      line-height: 1.45;
    }

    .rank-score {
      color: var(--success);
      font-weight: 950;
      font-size: 14px;
    }

    .board-note {
      display: flex;
      align-items: flex-start;
      gap: 10px;
      padding: 14px;
      border-radius: 18px;
      color: #334155;
      background: linear-gradient(135deg, #ecfeff, #f5f3ff);
      border: 1px solid rgba(6,182,212,.16);
      font-size: 14px;
      line-height: 1.65;
    }

    .dashboard-grid {
      display: grid;
      grid-template-columns: 1.1fr .9fr;
      gap: 22px;
      align-items: stretch;
    }

    .card {
      background: rgba(255,255,255,.84);
      border: 1px solid rgba(226,232,240,.86);
      border-radius: var(--radius);
      box-shadow: var(--shadow-sm);
      transition: transform .2s var(--ease), box-shadow .2s var(--ease), border-color .2s var(--ease);
    }

    .card:hover {
      transform: translateY(-3px);
      box-shadow: var(--shadow);
      border-color: rgba(124,58,237,.20);
    }

    .metric-dashboard {
      padding: 22px;
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 14px;
    }

    .metric-card {
      padding: 18px;
      min-height: 146px;
      border-radius: 20px;
      background: linear-gradient(180deg, #fff, #f8fafc);
      border: 1px solid var(--line);
    }

    .metric-card strong {
      display: block;
      color: var(--text-strong);
      font-size: 30px;
      line-height: 1.1;
      letter-spacing: -.05em;
    }

    .metric-card span {
      display: block;
      margin-top: 8px;
      color: var(--muted);
      font-size: 14px;
    }

    .metric-card small {
      display: inline-flex;
      margin-top: 14px;
      padding: 5px 8px;
      border-radius: 999px;
      color: #047857;
      background: #ecfdf5;
      font-size: 12px;
      font-weight: 800;
    }

    .health-panel {
      padding: 24px;
      background:
        linear-gradient(135deg, rgba(16,24,39,.96), rgba(30,41,59,.96));
      color: #e2e8f0;
      border-color: rgba(255,255,255,.12);
      overflow: hidden;
      position: relative;
    }

    .health-panel::after {
      content: "";
      position: absolute;
      right: -70px;
      bottom: -90px;
      width: 220px;
      height: 220px;
      border-radius: 50%;
      background: radial-gradient(circle, rgba(6,182,212,.22), transparent 67%);
    }

    .health-panel h3 {
      margin: 0 0 10px;
      color: #fff;
      font-size: 22px;
    }

    .health-panel p {
      margin: 0;
      color: #cbd5e1;
    }

    .progress-stack {
      display: grid;
      gap: 14px;
      margin-top: 22px;
      position: relative;
      z-index: 1;
    }

    .progress-row {
      display: grid;
      gap: 8px;
    }

    .progress-info {
      display: flex;
      justify-content: space-between;
      gap: 12px;
      color: #e2e8f0;
      font-size: 14px;
      font-weight: 800;
    }

    .progress-track {
      height: 10px;
      overflow: hidden;
      border-radius: 999px;
      background: rgba(255,255,255,.12);
    }

    .progress-fill {
      height: 100%;
      border-radius: inherit;
      background: linear-gradient(90deg, var(--accent), var(--primary));
    }

    .directory-wrap {
      display: grid;
      grid-template-columns: 320px 1fr;
      gap: 22px;
      align-items: start;
    }

    .directory-aside {
      padding: 18px;
      border-radius: var(--radius);
      background: #111827;
      color: #dbeafe;
      border: 1px solid rgba(255,255,255,.08);
      box-shadow: var(--shadow);
      position: sticky;
      top: 104px;
    }

    .directory-aside h3 {
      margin: 0 0 12px;
      color: #fff;
      font-size: 18px;
    }

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

    .folder-list a {
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 12px;
      padding: 12px;
      border-radius: 14px;
      color: #cbd5e1;
      background: rgba(255,255,255,.05);
      border: 1px solid rgba(255,255,255,.08);
      font-weight: 750;
    }

    .folder-list a:hover {
      color: #fff;
      background: rgba(124,58,237,.22);
      border-color: rgba(196,181,253,.28);
    }

    .folder-list em {
      font-style: normal;
      color: #93c5fd;
      font-size: 12px;
    }

    .directory-main {
      display: grid;
      gap: 14px;
    }

    .doc-row {
      display: grid;
      grid-template-columns: 52px 1fr auto;
      gap: 16px;
      align-items: center;
      padding: 18px;
      border-radius: 20px;
      background: #fff;
      border: 1px solid var(--line);
      box-shadow: 0 10px 24px rgba(15,23,42,.05);
      transition: transform .2s var(--ease), border-color .2s var(--ease), box-shadow .2s var(--ease);
    }

    .doc-row:hover {
      transform: translateX(4px);
      border-color: rgba(124,58,237,.24);
      box-shadow: var(--shadow-sm);
    }

    .doc-icon {
      width: 52px;
      height: 52px;
      display: grid;
      place-items: center;
      border-radius: 18px;
      color: var(--primary);
      background: var(--primary-50);
      font-size: 22px;
    }

    .doc-row h3 {
      margin: 0;
      color: var(--text-strong);
      font-size: 18px;
    }

    .doc-row p {
      margin: 4px 0 0;
      color: var(--muted);
      font-size: 14px;
      line-height: 1.6;
    }

    .doc-meta {
      display: flex;
      flex-direction: column;
      align-items: flex-end;
      gap: 8px;
      color: var(--muted);
      font-size: 13px;
      white-space: nowrap;
    }

    .value-layout {
      display: grid;
      grid-template-columns: .86fr 1.14fr;
      gap: 22px;
      align-items: stretch;
    }

    .value-spotlight {
      padding: 30px;
      border-radius: var(--radius-lg);
      color: #fff;
      background:
        linear-gradient(135deg, rgba(124,58,237,.92), rgba(6,182,212,.86)),
        url("data:image/svg+xml,%3Csvg width='260' height='260' viewBox='0 0 260 260' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' stroke='rgba(255,255,255,.16)' stroke-width='1'%3E%3Cpath d='M0 60h260M0 120h260M0 180h260M60 0v260M120 0v260M180 0v260'/%3E%3Ccircle cx='130' cy='130' r='72'/%3E%3C/g%3E%3C/svg%3E");
      box-shadow: var(--shadow);
      min-height: 450px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .value-spotlight h3 {
      margin: 0 0 12px;
      font-size: clamp(26px, 3vw, 40px);
      line-height: 1.18;
      letter-spacing: -.04em;
    }

    .value-spotlight p {
      margin: 0;
      color: rgba(255,255,255,.86);
      font-size: 17px;
    }

    .spotlight-list {
      display: grid;
      gap: 10px;
      margin: 28px 0 0;
      padding: 0;
      list-style: none;
    }

    .spotlight-list li {
      display: flex;
      align-items: center;
      gap: 10px;
      padding: 12px 14px;
      border-radius: 16px;
      background: rgba(255,255,255,.12);
      border: 1px solid rgba(255,255,255,.16);
      font-weight: 800;
    }

    .service-matrix {
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 16px;
    }

    .service-card {
      padding: 22px;
      border-radius: 22px;
      background: #fff;
      border: 1px solid var(--line);
      box-shadow: var(--shadow-sm);
      min-height: 212px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      transition: transform .2s var(--ease), box-shadow .2s var(--ease), border-color .2s var(--ease);
    }

    .service-card:hover {
      transform: translateY(-4px);
      border-color: rgba(6,182,212,.22);
      box-shadow: var(--shadow);
    }

    .service-card .top {
      display: flex;
      justify-content: space-between;
      gap: 14px;
      align-items: flex-start;
    }

    .service-icon {
      width: 46px;
      height: 46px;
      display: grid;
      place-items: center;
      color: var(--primary);
      background: var(--primary-50);
      border-radius: 16px;
      font-size: 21px;
    }

    .service-card h3 {
      margin: 18px 0 8px;
      color: var(--text-strong);
      font-size: 20px;
      letter-spacing: -.02em;
    }

    .service-card p {
      margin: 0;
      color: var(--muted);
      font-size: 15px;
      line-height: 1.72;
    }

    .demo-shell {
      display: grid;
      grid-template-columns: 1.05fr .95fr;
      gap: 24px;
      align-items: center;
    }

    .demo-panel {
      padding: 26px;
      border-radius: var(--radius-lg);
      background: #fff;
      border: 1px solid var(--line);
      box-shadow: var(--shadow-sm);
    }

    .steps {
      display: grid;
      gap: 14px;
      margin: 0;
      padding: 0;
      list-style: none;
      counter-reset: step;
    }

    .step-item {
      counter-increment: step;
      display: grid;
      grid-template-columns: 46px 1fr;
      gap: 14px;
      align-items: start;
      padding: 16px;
      border-radius: 18px;
      background: #f8fafc;
      border: 1px solid var(--line);
    }

    .step-item::before {
      content: counter(step, decimal-leading-zero);
      width: 46px;
      height: 46px;
      display: grid;
      place-items: center;
      border-radius: 16px;
      color: #fff;
      background: linear-gradient(135deg, var(--primary), var(--accent));
      font-weight: 950;
    }

    .step-item h3 {
      margin: 0;
      color: var(--text-strong);
      font-size: 18px;
    }

    .step-item p {
      margin: 4px 0 0;
      color: var(--muted);
      font-size: 15px;
      line-height: 1.65;
    }

    .screen-card {
      padding: 18px;
      border-radius: 28px;
      background: #111827;
      box-shadow: var(--shadow-dark);
      border: 1px solid rgba(255,255,255,.10);
      color: #e5e7eb;
    }

    .screen-topbar {
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 12px;
      margin-bottom: 14px;
      padding-bottom: 14px;
      border-bottom: 1px solid rgba(255,255,255,.10);
    }

    .dots {
      display: flex;
      gap: 7px;
    }

    .dots i {
      width: 10px;
      height: 10px;
      border-radius: 50%;
      background: #475569;
    }

    .dots i:nth-child(1) { background: #fb7185; }
    .dots i:nth-child(2) { background: #fbbf24; }
    .dots i:nth-child(3) { background: #34d399; }

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

    .screen-widget {
      min-height: 112px;
      padding: 16px;
      border-radius: 18px;
      background: rgba(255,255,255,.07);
      border: 1px solid rgba(255,255,255,.10);
    }

    .screen-widget.wide {
      grid-column: 1 / -1;
    }

    .screen-widget strong {
      display: block;
      color: #fff;
      font-size: 18px;
      margin-bottom: 8px;
    }

    .screen-widget span {
      color: #cbd5e1;
      font-size: 14px;
    }

    .result-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 22px;
      align-items: stretch;
    }

    .compare-card {
      padding: 24px;
      border-radius: var(--radius-lg);
      background: #fff;
      border: 1px solid var(--line);
      box-shadow: var(--shadow-sm);
    }

    .compare-card.featured {
      background:
        linear-gradient(180deg, #ffffff, #f5f3ff);
      border-color: rgba(124,58,237,.25);
    }

    .compare-card h3 {
      display: flex;
      align-items: center;
      gap: 10px;
      margin: 0 0 16px;
      color: var(--text-strong);
      font-size: 22px;
    }

    .compare-list {
      display: grid;
      gap: 12px;
      margin: 0;
      padding: 0;
      list-style: none;
    }

    .compare-list li {
      display: flex;
      gap: 10px;
      align-items: flex-start;
      padding: 12px;
      border-radius: 14px;
      background: #f8fafc;
      color: var(--muted);
      font-size: 15px;
    }

    .compare-list b {
      color: var(--text-strong);
    }

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

    .entry-card {
      padding: 20px;
      border-radius: 22px;
      background: #fff;
      border: 1px solid var(--line);
      box-shadow: var(--shadow-sm);
      min-height: 160px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      transition: transform .2s var(--ease), box-shadow .2s var(--ease), border-color .2s var(--ease);
    }

    .entry-card:hover {
      transform: translateY(-4px);
      border-color: rgba(124,58,237,.24);
      box-shadow: var(--shadow);
    }

    .entry-card h3 {
      margin: 12px 0 6px;
      color: var(--text-strong);
      font-size: 18px;
    }

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

    .entry-arrow {
      align-self: flex-end;
      width: 34px;
      height: 34px;
      display: grid;
      place-items: center;
      border-radius: 12px;
      color: var(--primary);
      background: var(--primary-50);
      font-weight: 950;
    }

    .timeline {
      display: grid;
      gap: 16px;
      position: relative;
    }

    .timeline-item {
      display: grid;
      grid-template-columns: 160px 1fr auto;
      gap: 18px;
      align-items: center;
      padding: 18px;
      border-radius: 22px;
      background: rgba(255,255,255,.08);
      border: 1px solid rgba(255,255,255,.12);
    }

    .timeline-date {
      color: #a5b4fc;
      font-weight: 950;
      letter-spacing: .02em;
    }

    .timeline-item h3 {
      margin: 0 0 4px;
      color: #fff;
      font-size: 19px;
    }

    .timeline-item p {
      margin: 0;
      color: #cbd5e1;
      font-size: 15px;
      line-height: 1.65;
    }

    .news-layout {
      display: grid;
      grid-template-columns: minmax(0, 1fr) 340px;
      gap: 24px;
      align-items: start;
    }

    .news-list {
      display: grid;
      gap: 12px;
      margin: 0;
      padding: 0;
      list-style: none;
    }

    .news-item a {
      display: grid;
      grid-template-columns: 120px 1fr auto;
      gap: 16px;
      align-items: center;
      padding: 18px;
      border-radius: 20px;
      background: #fff;
      border: 1px solid var(--line);
      box-shadow: 0 8px 20px rgba(15,23,42,.04);
    }

    .news-item a:hover {
      transform: translateX(4px);
      border-color: rgba(124,58,237,.24);
      box-shadow: var(--shadow-sm);
    }

    .news-date {
      color: var(--muted);
      font-size: 13px;
      font-weight: 850;
    }

    .news-title {
      color: var(--text-strong);
      font-size: 18px;
      font-weight: 900;
      line-height: 1.45;
    }

    .news-summary {
      display: block;
      margin-top: 4px;
      color: var(--muted);
      font-size: 14px;
      line-height: 1.55;
      font-weight: 400;
    }

    .news-more {
      color: var(--primary);
      font-weight: 950;
      white-space: nowrap;
    }

    .recommend-card {
      padding: 24px;
      border-radius: var(--radius-lg);
      background:
        linear-gradient(135deg, #fff, #f5f3ff);
      border: 1px solid rgba(124,58,237,.16);
      box-shadow: var(--shadow-sm);
      position: sticky;
      top: 104px;
    }

    .recommend-card h3 {
      margin: 0 0 10px;
      color: var(--text-strong);
      font-size: 22px;
    }

    .recommend-card p {
      margin: 0 0 18px;
      color: var(--muted);
      font-size: 15px;
      line-height: 1.75;
    }

    .mini-list {
      display: grid;
      gap: 10px;
      margin: 18px 0 0;
      padding: 0;
      list-style: none;
    }

    .mini-list li {
      padding: 12px;
      border-radius: 14px;
      background: rgba(255,255,255,.68);
      border: 1px solid rgba(226,232,240,.8);
      font-size: 14px;
      color: var(--muted);
    }

    .faq-grid {
      display: grid;
      grid-template-columns: .78fr 1.22fr;
      gap: 24px;
      align-items: start;
    }

    .faq-aside {
      padding: 26px;
      border-radius: var(--radius-lg);
      background: #111827;
      color: #e5e7eb;
      box-shadow: var(--shadow);
    }

    .faq-aside h2 {
      margin: 0 0 12px;
      color: #fff;
      font-size: 30px;
      line-height: 1.2;
      letter-spacing: -.04em;
    }

    .faq-aside p {
      margin: 0;
      color: #cbd5e1;
    }

    .faq-list {
      display: grid;
      gap: 12px;
    }

    .faq-item {
      border-radius: 20px;
      background: #fff;
      border: 1px solid var(--line);
      box-shadow: 0 8px 18px rgba(15,23,42,.04);
      overflow: hidden;
    }

    .faq-question {
      width: 100%;
      display: flex;
      justify-content: space-between;
      gap: 16px;
      align-items: center;
      padding: 18px 20px;
      background: #fff;
      color: var(--text-strong);
      text-align: left;
      font-weight: 950;
      transition: color .2s var(--ease), background .2s var(--ease);
    }

    .faq-question:hover,
    .faq-question:focus-visible {
      color: var(--primary);
      background: #f8fafc;
      outline: none;
    }

    .faq-question span:last-child {
      width: 28px;
      height: 28px;
      display: grid;
      place-items: center;
      border-radius: 10px;
      background: var(--primary-50);
      color: var(--primary);
      flex: 0 0 auto;
    }

    .faq-answer {
      display: none;
      padding: 0 20px 20px;
      color: var(--muted);
      font-size: 15px;
      line-height: 1.8;
    }

    .faq-item.open .faq-answer {
      display: block;
    }

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

    .lead-section {
      padding-bottom: 96px;
    }

    .lead-wrap {
      display: grid;
      grid-template-columns: .92fr 1.08fr;
      gap: 24px;
      padding: 26px;
      border-radius: 34px;
      background:
        radial-gradient(circle at 10% 0%, rgba(124,58,237,.20), transparent 34%),
        linear-gradient(135deg, #111827, #172033);
      color: #e5e7eb;
      border: 1px solid rgba(255,255,255,.10);
      box-shadow: var(--shadow-dark);
    }

    .lead-copy {
      padding: 24px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .lead-copy h2 {
      margin: 0 0 16px;
      color: #fff;
      font-size: clamp(30px, 4vw, 50px);
      line-height: 1.12;
      letter-spacing: -.05em;
    }

    .lead-copy p {
      margin: 0;
      color: #cbd5e1;
      font-size: 17px;
      line-height: 1.85;
    }

    .reward-boxes {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 10px;
      margin-top: 28px;
    }

    .reward-box {
      padding: 14px;
      border-radius: 18px;
      background: rgba(255,255,255,.08);
      border: 1px solid rgba(255,255,255,.12);
    }

    .reward-box strong {
      display: block;
      color: #fff;
      font-size: 17px;
      margin-bottom: 5px;
    }

    .reward-box span {
      color: #cbd5e1;
      font-size: 13px;
      line-height: 1.45;
    }

    .lead-form {
      padding: 24px;
      border-radius: 26px;
      background: #fff;
      color: var(--text);
      border: 1px solid rgba(255,255,255,.12);
    }

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

    .form-field {
      display: grid;
      gap: 8px;
    }

    .form-field.full {
      grid-column: 1 / -1;
    }

    .form-field label {
      color: var(--text-strong);
      font-size: 14px;
      font-weight: 850;
    }

    .form-hint {
      margin: 12px 0 0;
      color: var(--muted);
      font-size: 13px;
      line-height: 1.6;
    }

    .form-message {
      display: none;
      margin-top: 14px;
      padding: 12px 14px;
      border-radius: 14px;
      color: #047857;
      background: #ecfdf5;
      border: 1px solid rgba(16,185,129,.18);
      font-size: 14px;
      font-weight: 800;
    }

    .form-message.show {
      display: block;
    }

    .site-footer {
      background: #0b1120;
      color: #cbd5e1;
      padding: 54px 0 28px;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1fr auto;
      gap: 34px;
      align-items: start;
      padding-bottom: 30px;
      border-bottom: 1px solid rgba(255,255,255,.10);
    }

    .footer-brand {
      display: flex;
      align-items: center;
      gap: 12px;
      color: #fff;
      font-weight: 950;
      font-size: 20px;
      margin-bottom: 14px;
    }

    .footer-brand .brand-mark {
      width: 42px;
      height: 42px;
    }

    .footer-copy {
      max-width: 680px;
      margin: 0;
      color: #94a3b8;
      line-height: 1.85;
    }

    .footer-links {
      display: flex;
      flex-wrap: wrap;
      justify-content: flex-end;
      gap: 10px;
      max-width: 360px;
    }

    .footer-links a {
      padding: 9px 12px;
      border-radius: 999px;
      color: #cbd5e1;
      background: rgba(255,255,255,.06);
      border: 1px solid rgba(255,255,255,.09);
      font-size: 14px;
      font-weight: 750;
    }

    .footer-links a:hover,
    .footer-links a:focus-visible {
      color: #fff;
      background: rgba(124,58,237,.32);
      border-color: rgba(196,181,253,.24);
      outline: none;
    }

    .footer-bottom {
      display: flex;
      justify-content: space-between;
      gap: 18px;
      align-items: center;
      padding-top: 22px;
      color: #64748b;
      font-size: 13px;
    }

    .backtop {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      color: #94a3b8;
      font-weight: 800;
    }

    .backtop:hover {
      color: #fff;
    }

    @media (max-width: 1100px) {
      .toolbar {
        grid-template-columns: auto 1fr auto;
      }

      .search-box,
      .status-pill {
        display: none;
      }

      .hero-panel,
      .dashboard-grid,
      .directory-wrap,
      .value-layout,
      .demo-shell,
      .result-grid,
      .news-layout,
      .faq-grid,
      .lead-wrap {
        grid-template-columns: 1fr;
      }

      .directory-aside,
      .recommend-card {
        position: static;
      }

      .hero-bottom {
        grid-template-columns: 1fr;
      }

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

      .timeline-item {
        grid-template-columns: 120px 1fr;
      }

      .timeline-item .btn {
        grid-column: 2;
        justify-self: start;
      }
    }

    @media (max-width: 768px) {
      :root {
        --header-h: auto;
      }

      .container {
        width: min(100% - 28px, var(--container));
      }

      .site-header {
        padding: 10px 0;
      }

      .toolbar {
        position: relative;
        grid-template-columns: auto auto;
        justify-content: space-between;
        height: auto;
        border-radius: 18px;
        padding: 10px;
      }

      .menu-toggle {
        display: grid;
      }

      .nav-center,
      .toolbar-actions {
        display: none;
      }

      body.menu-open .nav-center,
      body.menu-open .toolbar-actions {
        display: flex;
      }

      body.menu-open .nav-center {
        grid-column: 1 / -1;
        justify-self: stretch;
        flex-direction: column;
        align-items: stretch;
        padding-top: 10px;
      }

      body.menu-open .toolbar-actions {
        grid-column: 1 / -1;
        justify-content: stretch;
        align-items: stretch;
        flex-wrap: wrap;
      }

      body.menu-open .nav-links {
        width: 100%;
      }

      body.menu-open .nav-link {
        width: 100%;
        justify-content: center;
      }

      body.menu-open .toolbar-actions .btn {
        width: 100%;
      }

      .hero {
        padding: 20px 0 54px;
      }

      .hero-panel {
        padding: 16px;
        min-height: auto;
        border-radius: 26px;
        grid-template-columns: 1fr;
      }

      .hero-entry {
        padding: 24px;
      }

      .hero-metrics {
        grid-template-columns: 1fr;
      }

      .hero-board {
        padding: 16px;
      }

      .section {
        padding: 62px 0;
      }

      .section.compact {
        padding: 46px 0;
      }

      .section-heading {
        margin-bottom: 22px;
      }

      .directory-aside {
        top: auto;
      }

      .doc-row {
        grid-template-columns: 44px 1fr;
      }

      .doc-icon {
        width: 44px;
        height: 44px;
        border-radius: 15px;
      }

      .doc-meta {
        grid-column: 2;
        align-items: flex-start;
        flex-direction: row;
        flex-wrap: wrap;
      }

      .service-matrix,
      .metric-dashboard,
      .entry-grid,
      .screen-grid,
      .reward-boxes,
      .form-grid {
        grid-template-columns: 1fr;
      }

      .value-spotlight {
        min-height: auto;
      }

      .news-item a {
        grid-template-columns: 1fr;
        gap: 8px;
      }

      .news-more {
        justify-self: start;
      }

      .footer-grid,
      .footer-bottom {
        grid-template-columns: 1fr;
        flex-direction: column;
        align-items: flex-start;
      }

      .footer-links {
        justify-content: flex-start;
      }
    }

    @media (max-width: 520px) {
      .brand-name {
        font-size: 17px;
      }

      .brand-mark {
        width: 34px;
        height: 34px;
      }

      .hero-entry {
        padding: 20px;
      }

      .hero h1 {
        font-size: 36px;
      }

      .hero-actions,
      .lead-form .btn {
        width: 100%;
      }

      .btn {
        width: 100%;
        white-space: normal;
        text-align: center;
      }

      .rank-item {
        grid-template-columns: 32px 1fr;
      }

      .rank-score {
        grid-column: 2;
        justify-self: start;
      }

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

      .timeline-item .btn {
        grid-column: auto;
      }

      .lead-wrap {
        padding: 16px;
        border-radius: 26px;
      }

      .lead-copy,
      .lead-form {
        padding: 18px;
      }
    }