/* roulang page: index */
:root {
      --primary: #2563eb;
      --primary-dark: #1d4ed8;
      --primary-soft: #eff6ff;
      --secondary: #06b6d4;
      --accent: #f59e0b;
      --success: #10b981;
      --danger: #dc2626;
      --bg: #f7faff;
      --bg-2: #f8fbff;
      --surface: #ffffff;
      --text: #0f172a;
      --muted: #475569;
      --subtle: #64748b;
      --border: #e2e8f0;
      --border-blue: #bfdbfe;
      --shadow: 0 14px 40px rgba(15, 23, 42, 0.08);
      --shadow-hover: 0 18px 48px rgba(37, 99, 235, 0.14);
      --radius-sm: 10px;
      --radius: 16px;
      --radius-lg: 22px;
      --sidebar: 240px;
      --container: 1180px;
      --ease: 180ms ease-out;
    }

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

    html {
      scroll-behavior: smooth;
    }

    body {
      min-height: 100vh;
      font-family: system-ui, -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
      color: var(--text);
      background: linear-gradient(180deg, #f7faff 0%, #ffffff 46%, #f8fbff 100%);
      line-height: 1.75;
      letter-spacing: 0;
      overflow-x: hidden;
    }

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

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

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

    button {
      border: 0;
      cursor: pointer;
    }

    input,
    select,
    textarea {
      width: 100%;
      border: 1px solid var(--border);
      border-radius: 12px;
      background: #fff;
      color: var(--text);
      padding: 12px 14px;
      outline: none;
      transition: border-color var(--ease), box-shadow var(--ease), background var(--ease);
    }

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

    input:focus,
    select:focus,
    textarea:focus {
      border-color: var(--primary);
      box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.12);
    }

    .page-shell {
      display: flex;
      min-height: 100vh;
    }

    .sidebar {
      position: fixed;
      inset: 0 auto 0 0;
      width: var(--sidebar);
      height: 100vh;
      background: rgba(255, 255, 255, 0.92);
      border-right: 1px solid var(--border);
      backdrop-filter: blur(16px);
      z-index: 30;
      display: flex;
      flex-direction: column;
      padding: 22px 16px;
    }

    .brand {
      display: flex;
      align-items: center;
      gap: 12px;
      min-height: 46px;
      margin-bottom: 26px;
    }

    .brand-mark {
      width: 42px;
      height: 42px;
      border-radius: 14px;
      background:
        linear-gradient(135deg, rgba(37, 99, 235, 0.96), rgba(6, 182, 212, 0.9)),
        radial-gradient(circle at 28% 28%, rgba(255, 255, 255, 0.9), transparent 30%);
      box-shadow: 0 12px 24px rgba(37, 99, 235, 0.22);
      position: relative;
      flex: 0 0 auto;
    }

    .brand-mark::after {
      content: "";
      position: absolute;
      width: 15px;
      height: 15px;
      right: 7px;
      bottom: 7px;
      border: 3px solid rgba(255, 255, 255, 0.86);
      border-radius: 50%;
    }

    .brand-text {
      display: grid;
      gap: 2px;
    }

    .brand-name {
      font-size: 17px;
      line-height: 1.25;
      font-weight: 800;
      color: var(--text);
    }

    .brand-note {
      font-size: 12px;
      color: var(--subtle);
    }

    .nav {
      display: grid;
      gap: 8px;
    }

    .nav-link {
      position: relative;
      min-height: 48px;
      display: flex;
      align-items: center;
      gap: 11px;
      padding: 12px 14px;
      border-radius: 14px;
      color: var(--muted);
      font-weight: 650;
    }

    .nav-link .icon {
      width: 22px;
      height: 22px;
      display: inline-grid;
      place-items: center;
      color: var(--primary);
      background: var(--primary-soft);
      border-radius: 9px;
      flex: 0 0 auto;
    }

    .nav-link:hover {
      background: #f1f7ff;
      color: var(--primary-dark);
    }

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

    .nav-link.active::before {
      content: "";
      position: absolute;
      left: -16px;
      width: 4px;
      height: 24px;
      border-radius: 999px;
      background: var(--primary);
    }

    .side-card {
      margin-top: auto;
      padding: 16px;
      border: 1px solid var(--border-blue);
      border-radius: 18px;
      background: linear-gradient(180deg, #eff6ff, #ffffff);
      box-shadow: 0 10px 28px rgba(15, 23, 42, 0.06);
    }

    .side-card strong {
      display: block;
      font-size: 15px;
      line-height: 1.45;
      margin-bottom: 6px;
    }

    .side-card p {
      font-size: 13px;
      color: var(--subtle);
      line-height: 1.65;
      margin-bottom: 12px;
    }

    .mobile-topbar {
      display: none;
      position: sticky;
      top: 0;
      z-index: 40;
      background: rgba(255, 255, 255, 0.94);
      backdrop-filter: blur(14px);
      border-bottom: 1px solid var(--border);
      padding: 10px 16px;
      align-items: center;
      justify-content: space-between;
    }

    .menu-button {
      width: 44px;
      height: 44px;
      display: inline-grid;
      place-items: center;
      border-radius: 12px;
      background: var(--primary-soft);
      color: var(--primary-dark);
      transition: background var(--ease), transform var(--ease);
    }

    .menu-button:hover {
      background: #dbeafe;
      transform: translateY(-1px);
    }

    .drawer-mask {
      position: fixed;
      inset: 0;
      z-index: 35;
      background: rgba(15, 23, 42, 0.32);
      opacity: 0;
      pointer-events: none;
      transition: opacity var(--ease);
    }

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

    .main-area {
      width: 100%;
      margin-left: var(--sidebar);
    }

    .container {
      width: min(var(--container), calc(100% - 48px));
      margin: 0 auto;
    }

    main {
      overflow: hidden;
    }

    section {
      padding: 84px 0;
    }

    .section-head {
      display: flex;
      justify-content: space-between;
      gap: 24px;
      align-items: end;
      margin-bottom: 28px;
    }

    .section-kicker {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      font-size: 13px;
      font-weight: 750;
      color: var(--primary-dark);
      background: var(--primary-soft);
      border: 1px solid #dbeafe;
      border-radius: 999px;
      padding: 6px 10px;
      margin-bottom: 12px;
    }

    .section-title {
      font-size: 34px;
      line-height: 1.22;
      font-weight: 800;
      letter-spacing: 0;
      color: var(--text);
    }

    .section-desc {
      color: var(--muted);
      font-size: 16px;
      max-width: 680px;
      margin-top: 12px;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      min-height: 46px;
      border-radius: 13px;
      padding: 12px 18px;
      font-weight: 750;
      line-height: 1.2;
      border: 1px solid transparent;
      transition: transform var(--ease), box-shadow var(--ease), background var(--ease), border-color var(--ease), color var(--ease);
      white-space: nowrap;
    }

    .btn-primary {
      color: #fff;
      background: var(--primary);
      box-shadow: 0 12px 28px rgba(37, 99, 235, 0.24);
    }

    .btn-primary:hover {
      background: var(--primary-dark);
      transform: translateY(-1px);
      box-shadow: 0 16px 34px rgba(37, 99, 235, 0.28);
    }

    .btn-secondary {
      color: var(--primary-dark);
      background: #fff;
      border-color: var(--border-blue);
    }

    .btn-secondary:hover {
      background: var(--primary-soft);
      transform: translateY(-1px);
    }

    .btn-text {
      color: var(--primary-dark);
      font-weight: 750;
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }

    .btn-text:hover {
      text-decoration: underline;
      transform: translateX(2px);
    }

    .badge,
    .tag {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      border-radius: 999px;
      padding: 5px 10px;
      font-size: 12px;
      font-weight: 750;
      line-height: 1.2;
    }

    .badge {
      color: var(--primary-dark);
      background: #dbeafe;
    }

    .badge.cyan {
      color: #0e7490;
      background: #cffafe;
    }

    .badge.amber {
      color: #92400e;
      background: #fef3c7;
    }

    .tag {
      color: var(--subtle);
      background: #f8fafc;
      border: 1px solid var(--border);
    }

    .card {
      background: var(--surface);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      box-shadow: var(--shadow);
      transition: transform var(--ease), box-shadow var(--ease), border-color var(--ease), background var(--ease);
    }

    .card:hover {
      transform: translateY(-2px);
      border-color: #93c5fd;
      box-shadow: var(--shadow-hover);
    }

    .hero {
      padding: 34px 0 76px;
      background:
        linear-gradient(90deg, rgba(37, 99, 235, 0.08) 1px, transparent 1px),
        linear-gradient(0deg, rgba(37, 99, 235, 0.07) 1px, transparent 1px),
        linear-gradient(180deg, #f7faff 0%, #ffffff 100%);
      background-size: 42px 42px, 42px 42px, auto;
    }

    .hero-panel {
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
      gap: 24px;
      align-items: stretch;
      min-height: 560px;
    }

    .hero-stage {
      position: relative;
      border-radius: 26px;
      padding: 44px;
      overflow: hidden;
      background:
        linear-gradient(135deg, rgba(255,255,255,0.95), rgba(239,246,255,0.94)),
        radial-gradient(circle at 18% 20%, rgba(6, 182, 212, 0.18), transparent 34%);
      border: 1px solid #dbeafe;
      box-shadow: var(--shadow);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .hero-stage::after {
      content: "";
      position: absolute;
      inset: auto -12% -34% 26%;
      height: 260px;
      background:
        linear-gradient(135deg, rgba(37, 99, 235, 0.12), rgba(6, 182, 212, 0.12));
      border-radius: 48px;
      transform: rotate(-8deg);
      pointer-events: none;
    }

    .hero-content {
      position: relative;
      z-index: 1;
      max-width: 760px;
    }

    h1 {
      font-size: 48px;
      line-height: 1.16;
      font-weight: 800;
      letter-spacing: 0;
      color: var(--text);
      margin: 14px 0 18px;
    }

    .hero-lead {
      font-size: 17px;
      color: var(--muted);
      line-height: 1.85;
      max-width: 720px;
    }

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

    .hero-points {
      position: relative;
      z-index: 1;
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 12px;
      margin-top: 34px;
    }

    .point {
      padding: 16px;
      border-radius: 16px;
      background: rgba(255, 255, 255, 0.76);
      border: 1px solid #dbeafe;
    }

    .point strong {
      display: block;
      font-size: 22px;
      line-height: 1.15;
      color: var(--primary-dark);
      margin-bottom: 4px;
    }

    .point span {
      font-size: 13px;
      color: var(--subtle);
    }

    .launch-card {
      border-radius: 26px;
      padding: 26px;
      background: #fff;
      border: 1px solid var(--border);
      box-shadow: var(--shadow);
      display: grid;
      gap: 18px;
      align-content: start;
    }

    .countdown-wrap {
      display: grid;
      grid-template-columns: 168px 1fr;
      gap: 18px;
      align-items: center;
      padding: 20px;
      border-radius: 20px;
      background: linear-gradient(180deg, #eff6ff, #ffffff);
      border: 1px solid #dbeafe;
    }

    .count-ring {
      width: 152px;
      height: 152px;
      border-radius: 50%;
      display: grid;
      place-items: center;
      background:
        conic-gradient(var(--primary) 0 72%, #dbeafe 72% 100%);
      position: relative;
    }

    .count-ring::before {
      content: "";
      position: absolute;
      width: 116px;
      height: 116px;
      border-radius: 50%;
      background: #fff;
      box-shadow: inset 0 0 0 1px #dbeafe;
    }

    .count-ring span {
      position: relative;
      z-index: 1;
      text-align: center;
      font-weight: 800;
      color: var(--primary-dark);
      line-height: 1.2;
    }

    .count-ring small {
      display: block;
      font-size: 12px;
      color: var(--subtle);
      font-weight: 650;
      margin-top: 4px;
    }

    .launch-info h2 {
      font-size: 22px;
      line-height: 1.28;
      margin-bottom: 8px;
    }

    .launch-info p {
      color: var(--muted);
      font-size: 14px;
      line-height: 1.7;
    }

    .feature-dots {
      display: grid;
      gap: 10px;
    }

    .feature-dot {
      display: flex;
      gap: 12px;
      padding: 14px;
      border-radius: 15px;
      border: 1px solid var(--border);
      background: #fff;
    }

    .feature-dot i {
      width: 28px;
      height: 28px;
      border-radius: 10px;
      background: var(--primary-soft);
      color: var(--primary);
      display: grid;
      place-items: center;
      font-style: normal;
      font-weight: 800;
      flex: 0 0 auto;
    }

    .feature-dot strong {
      display: block;
      font-size: 15px;
      margin-bottom: 2px;
    }

    .feature-dot p {
      font-size: 13px;
      color: var(--subtle);
      line-height: 1.55;
    }

    .intro-band {
      background: #fff;
    }

    .split-grid {
      display: grid;
      grid-template-columns: 0.9fr 1.1fr;
      gap: 30px;
      align-items: start;
    }

    .steps {
      display: grid;
      gap: 14px;
    }

    .step-item {
      display: grid;
      grid-template-columns: 46px 1fr;
      gap: 14px;
      padding: 20px;
      border-radius: var(--radius);
      border: 1px solid var(--border);
      background: #fff;
      box-shadow: 0 10px 26px rgba(15, 23, 42, 0.05);
    }

    .step-num {
      width: 46px;
      height: 46px;
      border-radius: 14px;
      display: grid;
      place-items: center;
      color: #fff;
      background: linear-gradient(135deg, var(--primary), var(--secondary));
      font-weight: 800;
    }

    .step-item h3 {
      font-size: 18px;
      line-height: 1.35;
      margin-bottom: 5px;
    }

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

    .progress-section {
      background: linear-gradient(180deg, #f8fbff, #ffffff);
    }

    .progress-grid {
      display: grid;
      grid-template-columns: 1.15fr 0.85fr;
      gap: 24px;
      align-items: stretch;
    }

    .progress-card {
      padding: 26px;
      border-radius: var(--radius-lg);
    }

    .progress-track {
      margin-top: 22px;
      display: grid;
      gap: 18px;
    }

    .track-row {
      display: grid;
      grid-template-columns: 92px 1fr 72px;
      gap: 12px;
      align-items: center;
    }

    .track-row strong {
      font-size: 14px;
      color: var(--text);
    }

    .bar {
      height: 12px;
      border-radius: 999px;
      background: #e0f2fe;
      overflow: hidden;
    }

    .bar span {
      display: block;
      height: 100%;
      border-radius: inherit;
      background: linear-gradient(90deg, var(--primary), var(--secondary));
    }

    .track-row em {
      font-style: normal;
      color: var(--primary-dark);
      font-weight: 800;
      font-size: 14px;
      text-align: right;
    }

    .mini-index {
      padding: 26px;
      border-radius: var(--radius-lg);
      background: linear-gradient(180deg, #ffffff, #eff6ff);
      border: 1px solid #dbeafe;
    }

    .mini-index h3 {
      font-size: 21px;
      margin-bottom: 12px;
    }

    .index-list {
      display: grid;
      gap: 10px;
      margin-top: 16px;
      list-style: none;
    }

    .index-list a {
      display: flex;
      justify-content: space-between;
      gap: 12px;
      padding: 12px 0;
      border-bottom: 1px solid #dbeafe;
      color: var(--muted);
      font-weight: 650;
    }

    .index-list a:hover {
      color: var(--primary-dark);
    }

    .featured-layout {
      display: grid;
      grid-template-columns: 1.05fr 0.95fr;
      gap: 24px;
    }

    .featured-big {
      min-height: 420px;
      padding: 28px;
      overflow: hidden;
      position: relative;
      background:
        linear-gradient(135deg, rgba(37, 99, 235, 0.12), rgba(6, 182, 212, 0.08)),
        #fff;
    }

    .abstract-cover {
      height: 168px;
      border-radius: 18px;
      margin-bottom: 22px;
      background:
        linear-gradient(135deg, rgba(37, 99, 235, 0.86), rgba(6, 182, 212, 0.76)),
        repeating-linear-gradient(45deg, rgba(255,255,255,0.2) 0 10px, transparent 10px 22px);
      position: relative;
      overflow: hidden;
    }

    .abstract-cover::before,
    .abstract-cover::after {
      content: "";
      position: absolute;
      border-radius: 28px;
      background: rgba(255, 255, 255, 0.22);
      border: 1px solid rgba(255, 255, 255, 0.35);
    }

    .abstract-cover::before {
      width: 160px;
      height: 84px;
      left: 26px;
      top: 36px;
    }

    .abstract-cover::after {
      width: 108px;
      height: 108px;
      right: 32px;
      top: 28px;
      border-radius: 50%;
    }

    .featured-big h3 {
      font-size: 25px;
      line-height: 1.28;
      margin: 14px 0 10px;
    }

    .featured-big p {
      color: var(--muted);
      max-width: 620px;
    }

    .tag-row {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-top: 18px;
    }

    .compact-list {
      display: grid;
      gap: 14px;
    }

    .compact-item {
      padding: 18px;
      border-radius: var(--radius);
      border: 1px solid var(--border);
      background: #fff;
      box-shadow: 0 10px 24px rgba(15, 23, 42, 0.05);
      display: grid;
      gap: 8px;
      transition: transform var(--ease), box-shadow var(--ease), border-color var(--ease);
    }

    .compact-item:hover {
      transform: translateY(-2px);
      border-color: #93c5fd;
      box-shadow: var(--shadow-hover);
    }

    .compact-item h3 {
      font-size: 18px;
      line-height: 1.35;
    }

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

    .ranking-section {
      background: #fff;
    }

    .rank-grid {
      display: grid;
      grid-template-columns: 0.9fr 1.1fr;
      gap: 24px;
    }

    .rank-card {
      padding: 24px;
      border-radius: var(--radius-lg);
      background: linear-gradient(180deg, #eff6ff, #fff);
      border: 1px solid #dbeafe;
    }

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

    .rank-list li {
      display: grid;
      grid-template-columns: 38px 1fr auto;
      gap: 12px;
      align-items: center;
      padding: 14px;
      background: #fff;
      border: 1px solid var(--border);
      border-radius: 14px;
    }

    .rank-no {
      width: 34px;
      height: 34px;
      border-radius: 12px;
      display: grid;
      place-items: center;
      background: var(--primary-soft);
      color: var(--primary-dark);
      font-weight: 800;
    }

    .rank-list strong {
      font-size: 15px;
    }

    .rank-list span {
      color: var(--subtle);
      font-size: 13px;
    }

    .highlight-wall {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 14px;
    }

    .highlight {
      padding: 18px;
      border-radius: var(--radius);
      border: 1px solid var(--border);
      background: #fff;
    }

    .highlight .icon-box {
      width: 40px;
      height: 40px;
      border-radius: 13px;
      display: grid;
      place-items: center;
      background: #cffafe;
      color: #0e7490;
      font-weight: 900;
      margin-bottom: 10px;
    }

    .highlight h3 {
      font-size: 17px;
      margin-bottom: 6px;
    }

    .highlight p {
      color: var(--muted);
      font-size: 14px;
      line-height: 1.65;
    }

    .news-section {
      background: linear-gradient(180deg, #f8fbff, #ffffff);
    }

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

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

    .news-item {
      display: grid;
      grid-template-columns: 108px 1fr auto;
      gap: 16px;
      align-items: center;
      padding: 18px;
      border-radius: var(--radius);
      border: 1px solid var(--border);
      background: #fff;
      box-shadow: 0 8px 22px rgba(15, 23, 42, 0.04);
      transition: transform var(--ease), border-color var(--ease), box-shadow var(--ease);
    }

    .news-item:hover {
      transform: translateY(-2px);
      border-color: #93c5fd;
      box-shadow: var(--shadow-hover);
    }

    .news-date {
      display: grid;
      gap: 2px;
      text-align: center;
      padding: 10px;
      border-radius: 13px;
      background: var(--primary-soft);
      color: var(--primary-dark);
      font-weight: 800;
    }

    .news-date small {
      color: var(--subtle);
      font-weight: 650;
    }

    .news-item h3 {
      font-size: 18px;
      line-height: 1.35;
      margin-bottom: 4px;
    }

    .news-item p {
      color: var(--muted);
      font-size: 14px;
      line-height: 1.6;
    }

    .recommend-box {
      position: sticky;
      top: 24px;
      padding: 22px;
      border-radius: var(--radius-lg);
      background: #fff;
      border: 1px solid var(--border);
      box-shadow: var(--shadow);
    }

    .recommend-box h3 {
      font-size: 20px;
      margin-bottom: 14px;
    }

    .recommend-box ul {
      list-style: none;
      display: grid;
      gap: 10px;
      margin-bottom: 18px;
    }

    .recommend-box li {
      padding: 10px 0;
      border-bottom: 1px solid var(--border);
      color: var(--muted);
      font-size: 14px;
    }

    .trust-section {
      background: #fff;
    }

    .trust-band {
      padding: 28px;
      border-radius: 24px;
      background: linear-gradient(135deg, #eff6ff, #ffffff);
      border: 1px solid #dbeafe;
      display: grid;
      gap: 22px;
    }

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

    .stat {
      padding: 20px;
      border-radius: 16px;
      background: #fff;
      border: 1px solid var(--border);
      box-shadow: 0 10px 24px rgba(15, 23, 42, 0.04);
    }

    .stat strong {
      display: block;
      font-size: 28px;
      color: var(--primary-dark);
      line-height: 1.2;
      margin-bottom: 4px;
    }

    .stat span {
      color: var(--subtle);
      font-size: 14px;
    }

    .trust-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 14px;
    }

    .trust-item {
      padding: 20px;
      border-radius: 16px;
      background: #fff;
      border: 1px solid var(--border);
    }

    .trust-item h3 {
      font-size: 17px;
      margin-bottom: 6px;
    }

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

    .cta-section {
      padding-bottom: 64px;
      background: linear-gradient(180deg, #ffffff, #f8fbff);
    }

    .cta-panel {
      border-radius: 26px;
      padding: 34px;
      background:
        linear-gradient(135deg, rgba(37, 99, 235, 0.12), rgba(6, 182, 212, 0.08)),
        #fff;
      border: 1px solid #dbeafe;
      box-shadow: var(--shadow);
      display: grid;
      grid-template-columns: 0.9fr 1.1fr;
      gap: 30px;
      align-items: start;
    }

    .form-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 14px;
    }

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

    .form-tip {
      margin-top: 12px;
      font-size: 13px;
      color: var(--subtle);
    }

    .benefit-list {
      list-style: none;
      display: grid;
      gap: 12px;
      margin-top: 18px;
    }

    .benefit-list li {
      display: flex;
      gap: 10px;
      align-items: flex-start;
      color: var(--muted);
    }

    .benefit-list i {
      width: 22px;
      height: 22px;
      border-radius: 50%;
      background: #dcfce7;
      color: #16a34a;
      display: grid;
      place-items: center;
      font-style: normal;
      font-weight: 900;
      flex: 0 0 auto;
      margin-top: 3px;
    }

    .faq-section {
      background: #fff;
    }

    .faq-list {
      display: grid;
      gap: 12px;
      max-width: 920px;
    }

    .faq-item {
      border: 1px solid var(--border);
      border-radius: 16px;
      background: #fff;
      overflow: hidden;
      transition: border-color var(--ease), background var(--ease);
    }

    .faq-item.active {
      border-color: #93c5fd;
      background: #f8fbff;
    }

    .faq-question {
      width: 100%;
      min-height: 56px;
      padding: 16px 18px;
      background: transparent;
      color: var(--text);
      display: flex;
      justify-content: space-between;
      gap: 18px;
      align-items: center;
      text-align: left;
      font-weight: 750;
    }

    .faq-question span:last-child {
      width: 28px;
      height: 28px;
      border-radius: 9px;
      background: var(--primary-soft);
      color: var(--primary-dark);
      display: grid;
      place-items: center;
      flex: 0 0 auto;
    }

    .faq-answer {
      display: none;
      padding: 0 18px 18px;
      color: var(--muted);
      border-left: 4px solid var(--primary);
      margin-left: 18px;
      line-height: 1.75;
    }

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

    .floating-cta {
      position: sticky;
      bottom: 16px;
      z-index: 25;
      width: min(var(--container), calc(100% - 48px));
      margin: 0 auto 18px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 14px;
      padding: 12px 14px 12px 18px;
      border-radius: 18px;
      background: rgba(255, 255, 255, 0.94);
      border: 1px solid #dbeafe;
      box-shadow: 0 18px 44px rgba(15, 23, 42, 0.14);
      backdrop-filter: blur(14px);
    }

    .floating-cta strong {
      font-size: 15px;
      line-height: 1.35;
    }

    .floating-cta span {
      color: var(--subtle);
      font-size: 13px;
    }

    .site-footer {
      background: #eef5ff;
      border-top: 1px solid #dbeafe;
      padding: 38px 0;
      color: var(--muted);
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.2fr 0.8fr 1fr;
      gap: 28px;
      align-items: start;
    }

    .footer-brand {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 12px;
    }

    .footer-brand strong {
      color: var(--text);
      font-size: 18px;
    }

    .footer-title {
      color: var(--text);
      font-weight: 800;
      margin-bottom: 12px;
    }

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

    .footer-links a:hover {
      color: var(--primary-dark);
      text-decoration: underline;
    }

    .copyright {
      margin-top: 26px;
      padding-top: 18px;
      border-top: 1px solid #dbeafe;
      font-size: 13px;
      color: var(--subtle);
      display: flex;
      justify-content: space-between;
      gap: 16px;
      flex-wrap: wrap;
    }

    @media (max-width: 1279px) {
      :root {
        --sidebar: 88px;
      }

      .sidebar {
        width: var(--sidebar);
        padding: 18px 12px;
      }

      .brand {
        justify-content: center;
      }

      .brand-text,
      .nav-link span.label,
      .side-card {
        display: none;
      }

      .nav-link {
        justify-content: center;
        padding: 12px;
      }

      .nav-link.active::before {
        left: -12px;
      }

      .container,
      .floating-cta {
        width: min(1080px, calc(100% - 40px));
      }

      h1 {
        font-size: 42px;
      }

      .hero-panel,
      .featured-layout,
      .progress-grid,
      .rank-grid,
      .cta-panel {
        grid-template-columns: 1fr;
      }

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

      .recommend-box {
        position: static;
      }
    }

    @media (max-width: 1023px) {
      .mobile-topbar {
        display: flex;
      }

      .sidebar {
        transform: translateX(-105%);
        width: 286px;
        transition: transform var(--ease);
        z-index: 45;
      }

      .sidebar.open {
        transform: translateX(0);
      }

      .sidebar .brand {
        justify-content: flex-start;
      }

      .sidebar .brand-text,
      .sidebar .nav-link span.label,
      .sidebar .side-card {
        display: grid;
      }

      .sidebar .side-card {
        display: block;
      }

      .nav-link {
        justify-content: flex-start;
      }

      .main-area {
        margin-left: 0;
      }

      section {
        padding: 64px 0;
      }

      .hero {
        padding-top: 22px;
      }

      .hero-panel {
        min-height: auto;
      }

      .hero-stage {
        padding: 30px;
      }

      .countdown-wrap {
        grid-template-columns: 1fr;
        justify-items: center;
        text-align: center;
      }

      .split-grid,
      .trust-grid {
        grid-template-columns: 1fr;
      }

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

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

    @media (max-width: 767px) {
      .container,
      .floating-cta {
        width: min(100% - 28px, var(--container));
      }

      section {
        padding: 54px 0;
      }

      .section-head {
        display: block;
      }

      .section-title {
        font-size: 28px;
      }

      h1 {
        font-size: 34px;
      }

      .hero-stage {
        padding: 24px;
        border-radius: 22px;
      }

      .hero-actions,
      .floating-cta {
        align-items: stretch;
      }

      .hero-actions .btn {
        flex: 1 1 100%;
      }

      .hero-points,
      .stats-grid,
      .highlight-wall,
      .form-grid {
        grid-template-columns: 1fr;
      }

      .track-row {
        grid-template-columns: 1fr;
        gap: 8px;
      }

      .track-row em {
        text-align: left;
      }

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

      .news-date {
        width: 112px;
        text-align: left;
      }

      .cta-panel {
        padding: 24px;
      }

      .floating-cta {
        position: static;
        display: grid;
        margin-bottom: 0;
      }

      .floating-cta .btn {
        width: 100%;
      }

      .copyright {
        display: grid;
      }
    }

    @media (max-width: 520px) {
      .mobile-topbar {
        padding: 9px 12px;
      }

      .brand-name {
        font-size: 15px;
      }

      .brand-note {
        display: none;
      }

      .hero-lead,
      .section-desc {
        font-size: 15px;
      }

      .count-ring {
        width: 132px;
        height: 132px;
      }

      .count-ring::before {
        width: 100px;
        height: 100px;
      }

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

/* roulang page: category1 */
:root {
      --primary: #2563eb;
      --primary-dark: #1d4ed8;
      --primary-soft: #eff6ff;
      --cyan: #06b6d4;
      --mint: #10b981;
      --amber: #f59e0b;
      --bg: #f7faff;
      --bg-soft: #f8fbff;
      --surface: #ffffff;
      --text: #0f172a;
      --muted: #475569;
      --weak: #64748b;
      --border: #e2e8f0;
      --border-strong: #bfdbfe;
      --shadow-sm: 0 8px 22px rgba(15, 23, 42, 0.06);
      --shadow-md: 0 14px 40px rgba(15, 23, 42, 0.08);
      --shadow-blue: 0 18px 46px rgba(37, 99, 235, 0.14);
      --radius-sm: 12px;
      --radius: 16px;
      --radius-lg: 20px;
      --sidebar: 240px;
      --container: 1180px;
      --ease: 180ms ease-out;
    }

    * {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      margin: 0;
      font-family: system-ui, -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
      color: var(--text);
      background: var(--bg);
      line-height: 1.75;
      letter-spacing: 0;
    }

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

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

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

    button {
      border: 0;
      cursor: pointer;
    }

    input,
    textarea,
    select {
      width: 100%;
      border: 1px solid var(--border);
      border-radius: 12px;
      background: #fff;
      color: var(--text);
      padding: 12px 14px;
      outline: none;
      transition: border-color var(--ease), box-shadow var(--ease);
    }

    input:focus,
    textarea:focus,
    select:focus {
      border-color: var(--primary);
      box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.12);
    }

    textarea {
      min-height: 118px;
      resize: vertical;
    }

    .container {
      width: min(100% - 48px, var(--container));
      margin: 0 auto;
    }

    .sidebar {
      position: fixed;
      inset: 0 auto 0 0;
      width: var(--sidebar);
      height: 100vh;
      background: rgba(255, 255, 255, 0.96);
      border-right: 1px solid var(--border);
      padding: 24px 18px;
      display: flex;
      flex-direction: column;
      z-index: 50;
      backdrop-filter: blur(10px);
    }

    .brand {
      display: flex;
      align-items: center;
      gap: 12px;
      padding: 8px 8px 22px;
      border-bottom: 1px solid var(--border);
    }

    .brand-mark {
      width: 38px;
      height: 38px;
      border-radius: 12px;
      background:
        linear-gradient(135deg, var(--primary), var(--cyan));
      box-shadow: 0 12px 24px rgba(37, 99, 235, 0.18);
      position: relative;
      flex: 0 0 auto;
    }

    .brand-mark::after {
      content: "";
      position: absolute;
      inset: 10px;
      border: 2px solid rgba(255, 255, 255, 0.75);
      border-radius: 9px;
      transform: rotate(18deg);
    }

    .brand-text {
      min-width: 0;
      display: grid;
      gap: 1px;
    }

    .brand-name {
      font-weight: 800;
      font-size: 17px;
      line-height: 1.2;
      color: var(--text);
    }

    .brand-note {
      font-size: 12px;
      color: var(--weak);
      white-space: nowrap;
    }

    .nav {
      display: grid;
      gap: 8px;
      padding: 22px 0;
    }

    .nav-link {
      position: relative;
      display: flex;
      align-items: center;
      gap: 10px;
      min-height: 46px;
      padding: 11px 12px;
      border-radius: 14px;
      color: var(--muted);
      font-weight: 650;
      transition: background var(--ease), color var(--ease), transform var(--ease);
    }

    .nav-link .icon {
      width: 24px;
      height: 24px;
      border-radius: 9px;
      display: inline-grid;
      place-items: center;
      color: var(--primary);
      background: var(--primary-soft);
      font-size: 15px;
      flex: 0 0 auto;
    }

    .nav-link:hover {
      background: #f1f5ff;
      color: var(--primary-dark);
      transform: translateX(2px);
    }

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

    .nav-link.active::before {
      content: "";
      position: absolute;
      left: -18px;
      top: 12px;
      bottom: 12px;
      width: 4px;
      border-radius: 999px;
      background: var(--primary);
    }

    .side-card {
      margin-top: auto;
      padding: 16px;
      border-radius: var(--radius);
      background: linear-gradient(180deg, #eef6ff 0%, #ffffff 100%);
      border: 1px solid var(--border-strong);
      box-shadow: var(--shadow-sm);
    }

    .side-card strong {
      display: block;
      font-size: 15px;
      margin-bottom: 6px;
    }

    .side-card p {
      margin: 0 0 14px;
      font-size: 13px;
      color: var(--weak);
      line-height: 1.65;
    }

    .mobile-bar {
      display: none;
      position: sticky;
      top: 0;
      z-index: 60;
      background: rgba(255, 255, 255, 0.96);
      border-bottom: 1px solid var(--border);
      backdrop-filter: blur(10px);
    }

    .mobile-inner {
      width: min(100% - 32px, var(--container));
      min-height: 64px;
      margin: 0 auto;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
    }

    .menu-toggle {
      width: 42px;
      height: 42px;
      border-radius: 12px;
      display: inline-grid;
      place-items: center;
      background: var(--primary-soft);
      color: var(--primary);
      border: 1px solid var(--border-strong);
      transition: background var(--ease), transform var(--ease);
    }

    .menu-toggle:hover {
      background: #dbeafe;
      transform: translateY(-1px);
    }

    .mobile-panel {
      display: none;
      border-top: 1px solid var(--border);
      background: #fff;
      padding: 10px 16px 18px;
    }

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

    .mobile-panel .nav {
      padding: 0;
      width: min(100%, var(--container));
      margin: 0 auto;
    }

    .main {
      margin-left: var(--sidebar);
      min-height: 100vh;
      overflow: hidden;
    }

    .section {
      padding: 76px 0;
    }

    .section-tight {
      padding: 54px 0;
    }

    .page-head {
      padding: 54px 0 42px;
      background:
        linear-gradient(90deg, rgba(37, 99, 235, 0.08) 1px, transparent 1px),
        linear-gradient(180deg, #f8fbff 0%, #ffffff 100%);
      background-size: 26px 26px, auto;
      border-bottom: 1px solid var(--border);
    }

    .breadcrumb {
      display: flex;
      align-items: center;
      flex-wrap: wrap;
      gap: 8px;
      color: var(--weak);
      font-size: 14px;
      margin-bottom: 22px;
    }

    .breadcrumb a {
      color: var(--primary);
      font-weight: 650;
    }

    .head-layout {
      display: grid;
      grid-template-columns: minmax(0, 1fr) 360px;
      gap: 34px;
      align-items: end;
    }

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 7px 12px;
      border-radius: 999px;
      background: var(--primary-soft);
      color: var(--primary-dark);
      border: 1px solid var(--border-strong);
      font-weight: 700;
      font-size: 14px;
      margin-bottom: 16px;
    }

    .eyebrow::before {
      content: "";
      width: 7px;
      height: 7px;
      border-radius: 999px;
      background: var(--mint);
    }

    h1 {
      margin: 0;
      max-width: 780px;
      font-size: 46px;
      line-height: 1.18;
      font-weight: 800;
      letter-spacing: 0;
    }

    .lead {
      max-width: 720px;
      margin: 18px 0 0;
      color: var(--muted);
      font-size: 17px;
      line-height: 1.85;
    }

    .head-panel {
      background: #fff;
      border: 1px solid var(--border);
      border-radius: var(--radius-lg);
      box-shadow: var(--shadow-md);
      padding: 20px;
    }

    .head-panel-title {
      font-weight: 800;
      margin-bottom: 14px;
    }

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

    .quick-list li {
      display: flex;
      align-items: flex-start;
      gap: 10px;
      color: var(--muted);
      font-size: 14px;
    }

    .quick-list li::before {
      content: "✓";
      width: 22px;
      height: 22px;
      border-radius: 999px;
      display: inline-grid;
      place-items: center;
      background: #ecfeff;
      color: #0891b2;
      font-weight: 800;
      flex: 0 0 auto;
      line-height: 1;
    }

    .filter-wrap {
      margin-top: -24px;
      position: relative;
      z-index: 2;
    }

    .filter-bar {
      display: flex;
      align-items: center;
      gap: 10px;
      overflow-x: auto;
      padding: 14px;
      background: #fff;
      border: 1px solid var(--border);
      border-radius: var(--radius-lg);
      box-shadow: var(--shadow-sm);
      scrollbar-width: thin;
    }

    .chip {
      flex: 0 0 auto;
      border: 1px solid var(--border);
      background: #fff;
      color: var(--muted);
      border-radius: 999px;
      padding: 9px 14px;
      font-weight: 700;
      font-size: 14px;
      transition: color var(--ease), background var(--ease), border-color var(--ease), transform var(--ease);
    }

    .chip:hover {
      color: var(--primary);
      border-color: var(--border-strong);
      background: var(--primary-soft);
      transform: translateY(-1px);
    }

    .chip.active {
      background: var(--primary);
      color: #fff;
      border-color: var(--primary);
    }

    .content-shell {
      display: grid;
      grid-template-columns: minmax(0, 1fr) 320px;
      gap: 28px;
      align-items: start;
    }

    .section-head {
      display: flex;
      align-items: end;
      justify-content: space-between;
      gap: 24px;
      margin-bottom: 24px;
    }

    .section-title {
      margin: 0;
      font-size: 31px;
      line-height: 1.25;
      font-weight: 800;
    }

    .section-desc {
      margin: 8px 0 0;
      color: var(--muted);
      max-width: 700px;
      font-size: 16px;
    }

    .list-stack {
      display: grid;
      gap: 18px;
    }

    .topic-item {
      display: grid;
      grid-template-columns: 168px minmax(0, 1fr);
      gap: 20px;
      padding: 18px;
      border: 1px solid var(--border);
      border-radius: var(--radius-lg);
      background: #fff;
      box-shadow: var(--shadow-sm);
      transition: border-color var(--ease), box-shadow var(--ease), transform var(--ease);
    }

    .topic-item:hover {
      border-color: var(--border-strong);
      box-shadow: var(--shadow-blue);
      transform: translateY(-2px);
    }

    .media-tile {
      min-height: 132px;
      border-radius: 15px;
      background:
        radial-gradient(circle at 28% 24%, rgba(6, 182, 212, 0.22), transparent 32%),
        linear-gradient(135deg, #eff6ff 0%, #ffffff 46%, #e0f2fe 100%);
      border: 1px solid #dbeafe;
      display: grid;
      place-items: center;
      color: var(--primary);
      font-size: 34px;
      font-weight: 800;
    }

    .item-meta {
      display: flex;
      align-items: center;
      flex-wrap: wrap;
      gap: 8px;
      margin-bottom: 9px;
    }

    .badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      min-height: 26px;
      padding: 4px 9px;
      border-radius: 999px;
      font-size: 12px;
      font-weight: 800;
      line-height: 1;
      border: 1px solid transparent;
    }

    .badge.blue {
      background: var(--primary-soft);
      color: var(--primary-dark);
      border-color: var(--border-strong);
    }

    .badge.cyan {
      background: #ecfeff;
      color: #0e7490;
      border-color: #bae6fd;
    }

    .badge.green {
      background: #ecfdf5;
      color: #047857;
      border-color: #bbf7d0;
    }

    .badge.amber {
      background: #fffbeb;
      color: #b45309;
      border-color: #fde68a;
    }

    .time {
      color: var(--weak);
      font-size: 13px;
      margin-left: auto;
    }

    .topic-item h2 {
      margin: 0 0 8px;
      font-size: 21px;
      line-height: 1.35;
      font-weight: 800;
    }

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

    .item-actions {
      margin-top: 14px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 14px;
      flex-wrap: wrap;
    }

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

    .mini-tag {
      color: var(--weak);
      background: #f8fafc;
      border: 1px solid var(--border);
      padding: 5px 8px;
      border-radius: 999px;
      font-size: 12px;
      font-weight: 700;
    }

    .link-arrow {
      color: var(--primary);
      font-weight: 800;
      display: inline-flex;
      align-items: center;
      gap: 5px;
      transition: gap var(--ease), color var(--ease);
      white-space: nowrap;
    }

    .topic-item:hover .link-arrow,
    .link-arrow:hover {
      gap: 9px;
      color: var(--primary-dark);
      text-decoration: underline;
      text-underline-offset: 3px;
    }

    .index-aside {
      position: sticky;
      top: 24px;
      display: grid;
      gap: 18px;
    }

    .index-box {
      background: #fff;
      border: 1px solid var(--border);
      border-radius: var(--radius-lg);
      box-shadow: var(--shadow-sm);
      padding: 18px;
    }

    .index-box.soft {
      background: linear-gradient(180deg, #eff6ff 0%, #ffffff 100%);
      border-color: var(--border-strong);
    }

    .index-title {
      margin: 0 0 12px;
      font-size: 17px;
      font-weight: 800;
    }

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

    .index-links a {
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 12px;
      padding: 10px 11px;
      border-radius: 12px;
      color: var(--muted);
      font-weight: 700;
      background: #f8fafc;
      border: 1px solid transparent;
      transition: color var(--ease), background var(--ease), border-color var(--ease), transform var(--ease);
    }

    .index-links a:hover {
      color: var(--primary);
      background: var(--primary-soft);
      border-color: var(--border-strong);
      transform: translateX(2px);
    }

    .index-box p {
      margin: 0;
      color: var(--muted);
      font-size: 14px;
      line-height: 1.7;
    }

    .stat-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 18px;
    }

    .stat-card {
      background: #fff;
      border: 1px solid var(--border);
      border-radius: var(--radius-lg);
      padding: 22px;
      box-shadow: var(--shadow-sm);
    }

    .stat-card strong {
      display: block;
      color: var(--primary);
      font-size: 30px;
      line-height: 1.1;
      margin-bottom: 6px;
    }

    .stat-card span {
      color: var(--muted);
      font-size: 14px;
    }

    .note-band {
      background: #fff;
      border-top: 1px solid var(--border);
      border-bottom: 1px solid var(--border);
    }

    .note-layout {
      display: grid;
      grid-template-columns: 0.9fr 1.1fr;
      gap: 30px;
      align-items: start;
    }

    .note-card {
      padding: 22px;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border);
      background: var(--bg-soft);
      box-shadow: var(--shadow-sm);
    }

    .note-card h3 {
      margin: 0 0 10px;
      font-size: 20px;
    }

    .note-card p {
      margin: 0;
      color: var(--muted);
    }

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

    .check-list li {
      display: flex;
      gap: 11px;
      padding: 13px 0;
      border-bottom: 1px solid var(--border);
      color: var(--muted);
    }

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

    .check-list li::before {
      content: "";
      width: 10px;
      height: 10px;
      margin-top: 10px;
      border-radius: 999px;
      background: var(--cyan);
      box-shadow: 0 0 0 5px #ecfeff;
      flex: 0 0 auto;
    }

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

    details {
      border: 1px solid var(--border);
      border-radius: var(--radius);
      background: #fff;
      box-shadow: var(--shadow-sm);
      overflow: hidden;
      transition: border-color var(--ease), box-shadow var(--ease);
    }

    details[open] {
      border-color: var(--border-strong);
      box-shadow: var(--shadow-md);
    }

    summary {
      min-height: 52px;
      padding: 16px 18px;
      cursor: pointer;
      font-weight: 800;
      list-style: none;
      display: flex;
      justify-content: space-between;
      gap: 16px;
      align-items: center;
    }

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

    summary::after {
      content: "+";
      width: 28px;
      height: 28px;
      border-radius: 999px;
      display: grid;
      place-items: center;
      color: var(--primary);
      background: var(--primary-soft);
      flex: 0 0 auto;
      transition: transform var(--ease);
    }

    details[open] summary {
      color: var(--primary-dark);
      background: #f8fbff;
      border-left: 4px solid var(--primary);
    }

    details[open] summary::after {
      content: "−";
      transform: rotate(180deg);
    }

    .faq-body {
      padding: 0 18px 18px 22px;
      color: var(--muted);
      background: #f8fbff;
    }

    .cta-band {
      padding: 76px 0;
      background:
        linear-gradient(135deg, rgba(37, 99, 235, 0.11), rgba(6, 182, 212, 0.08)),
        #f8fbff;
      border-top: 1px solid var(--border);
    }

    .cta-panel {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 30px;
      align-items: start;
      background: #fff;
      border: 1px solid var(--border-strong);
      border-radius: 24px;
      padding: 28px;
      box-shadow: var(--shadow-md);
    }

    .cta-panel h2 {
      margin: 0 0 10px;
      font-size: 30px;
      line-height: 1.25;
    }

    .cta-panel p {
      color: var(--muted);
      margin: 0 0 20px;
    }

    .form-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 12px;
    }

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

    .form-hint {
      margin-top: 10px;
      color: var(--weak);
      font-size: 13px;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      min-height: 44px;
      padding: 12px 18px;
      border-radius: 13px;
      font-weight: 800;
      border: 1px solid transparent;
      transition: background var(--ease), color var(--ease), border-color var(--ease), box-shadow var(--ease), transform var(--ease);
      white-space: nowrap;
    }

    .btn-primary {
      color: #fff;
      background: var(--primary);
      box-shadow: 0 12px 24px rgba(37, 99, 235, 0.18);
    }

    .btn-primary:hover {
      background: var(--primary-dark);
      transform: translateY(-1px);
      box-shadow: var(--shadow-blue);
    }

    .btn-secondary {
      color: var(--primary);
      background: #fff;
      border-color: var(--border-strong);
    }

    .btn-secondary:hover {
      background: var(--primary-soft);
      transform: translateY(-1px);
    }

    .btn:focus-visible,
    .nav-link:focus-visible,
    .chip:focus-visible,
    .link-arrow:focus-visible,
    .menu-toggle:focus-visible {
      outline: 3px solid rgba(37, 99, 235, 0.28);
      outline-offset: 3px;
    }

    .site-footer {
      margin-left: var(--sidebar);
      background: #eef4fb;
      border-top: 1px solid var(--border);
      padding: 42px 0 28px;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.4fr 0.8fr 1fr;
      gap: 34px;
    }

    .footer-brand {
      display: flex;
      align-items: center;
      gap: 10px;
      margin-bottom: 12px;
    }

    .footer-brand .brand-mark {
      width: 32px;
      height: 32px;
      border-radius: 10px;
    }

    .footer-brand strong {
      font-size: 18px;
    }

    .site-footer p {
      margin: 0;
      color: var(--muted);
      font-size: 14px;
      line-height: 1.75;
    }

    .footer-title {
      font-weight: 800;
      margin-bottom: 12px;
    }

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

    .footer-links a {
      color: var(--muted);
      font-weight: 650;
      transition: color var(--ease);
    }

    .footer-links a:hover {
      color: var(--primary);
      text-decoration: underline;
      text-underline-offset: 3px;
    }

    .copyright {
      margin-top: 30px;
      padding-top: 18px;
      border-top: 1px solid #dbe3ee;
      display: flex;
      justify-content: space-between;
      gap: 16px;
      flex-wrap: wrap;
      color: var(--weak);
      font-size: 13px;
    }

    @media (max-width: 1279px) {
      :root {
        --sidebar: 88px;
      }

      .sidebar {
        width: var(--sidebar);
        padding: 20px 12px;
      }

      .brand {
        justify-content: center;
        padding: 8px 0 18px;
      }

      .brand-text,
      .nav-link .label,
      .side-card {
        display: none;
      }

      .nav-link {
        justify-content: center;
        padding: 10px;
      }

      .nav-link.active::before {
        left: -12px;
      }
    }

    @media (max-width: 1023px) {
      .sidebar {
        display: none;
      }

      .mobile-bar {
        display: block;
      }

      .main,
      .site-footer {
        margin-left: 0;
      }

      .head-layout,
      .content-shell,
      .note-layout,
      .cta-panel {
        grid-template-columns: 1fr;
      }

      .index-aside {
        position: static;
      }

      h1 {
        font-size: 38px;
      }

      .section {
        padding: 62px 0;
      }

      .section-tight {
        padding: 46px 0;
      }
    }

    @media (max-width: 767px) {
      .container {
        width: min(100% - 32px, var(--container));
      }

      .page-head {
        padding: 38px 0 34px;
      }

      h1 {
        font-size: 32px;
      }

      .lead {
        font-size: 16px;
      }

      .head-panel {
        padding: 16px;
      }

      .section-head {
        display: block;
      }

      .section-title,
      .cta-panel h2 {
        font-size: 26px;
      }

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

      .media-tile {
        min-height: 116px;
      }

      .time {
        margin-left: 0;
        width: 100%;
      }

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

      .form-grid .full {
        grid-column: auto;
      }

      .cta-panel {
        padding: 20px;
      }

      .btn {
        width: 100%;
      }

      .copyright {
        display: grid;
      }
    }

    @media (max-width: 520px) {
      .mobile-inner {
        width: min(100% - 24px, var(--container));
      }

      .mobile-inner .brand-note {
        display: none;
      }

      .brand-name {
        font-size: 16px;
      }

      .breadcrumb {
        font-size: 13px;
      }

      h1 {
        font-size: 30px;
      }

      .filter-bar {
        border-radius: 15px;
      }

      .chip {
        padding: 8px 12px;
      }

      .topic-item h2 {
        font-size: 19px;
      }

      .section {
        padding: 54px 0;
      }
    }