/* roulang page: index */
:root {
      --color-primary: #2563EB;
      --color-primary-dark: #1E40AF;
      --color-accent: #38BDF8;
      --color-bg: #F8FAFC;
      --color-soft: #EEF6FF;
      --color-card: #FFFFFF;
      --color-text: #172033;
      --color-muted: #667085;
      --color-border: #DDE7F3;
      --shadow-soft: 0 20px 60px rgba(15, 45, 90, .08);
      --shadow-lift: 0 26px 70px rgba(15, 45, 90, .12);
      --radius-card: 24px;
      --radius-inner: 18px;
      --container: 1280px;
    }

    * {
      box-sizing: border-box;
    }

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

    body {
      margin: 0;
      font-family: system-ui, -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
      color: var(--color-text);
      background:
        radial-gradient(circle at 12% 8%, rgba(56, 189, 248, .12), transparent 30%),
        radial-gradient(circle at 88% 4%, rgba(37, 99, 235, .10), transparent 34%),
        linear-gradient(180deg, #FFFFFF 0%, var(--color-bg) 46%, #FFFFFF 100%);
      line-height: 1.75;
      overflow-x: hidden;
    }

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

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

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

    button {
      cursor: pointer;
    }

    ::selection {
      background: rgba(37, 99, 235, .16);
      color: var(--color-primary-dark);
    }

    :focus-visible {
      outline: 3px solid rgba(56, 189, 248, .45);
      outline-offset: 3px;
      border-radius: 12px;
    }

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

    .site-header {
      position: sticky;
      top: 0;
      z-index: 50;
      border-bottom: 1px solid rgba(221, 231, 243, .9);
      background: rgba(255, 255, 255, .82);
      backdrop-filter: blur(18px);
    }

    .nav-shell {
      min-height: 76px;
      display: grid;
      grid-template-columns: 1fr auto 1fr;
      align-items: center;
      gap: 24px;
    }

    .nav-group {
      display: flex;
      align-items: center;
      gap: 10px;
    }

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

    .nav-right {
      justify-content: flex-end;
    }

    .nav-link {
      position: relative;
      display: inline-flex;
      align-items: center;
      min-height: 42px;
      padding: 0 14px;
      border-radius: 999px;
      color: #344054;
      font-size: 15px;
      font-weight: 650;
      transition: color .22s ease, background .22s ease, transform .22s ease;
    }

    .nav-link:hover {
      color: var(--color-primary-dark);
      background: var(--color-soft);
      transform: translateY(-1px);
    }

    .nav-link.active {
      color: var(--color-primary-dark);
      background: rgba(37, 99, 235, .10);
    }

    .logo-mark {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      padding: 8px 14px 8px 9px;
      border: 1px solid rgba(37, 99, 235, .14);
      border-radius: 999px;
      background: rgba(255, 255, 255, .86);
      box-shadow: 0 12px 34px rgba(15, 45, 90, .08);
      white-space: nowrap;
    }

    .logo-icon {
      width: 34px;
      height: 34px;
      display: grid;
      place-items: center;
      border-radius: 12px;
      background: linear-gradient(135deg, #2563EB, #38BDF8);
      color: #fff;
      font-weight: 800;
      font-size: 16px;
      letter-spacing: -.03em;
    }

    .logo-text {
      font-weight: 800;
      font-size: 16px;
      color: #172033;
      letter-spacing: -.02em;
    }

    .mobile-toggle {
      display: none;
      width: 44px;
      height: 44px;
      border: 1px solid var(--color-border);
      border-radius: 14px;
      background: #fff;
      color: var(--color-primary-dark);
      align-items: center;
      justify-content: center;
      box-shadow: 0 10px 28px rgba(15, 45, 90, .06);
    }

    .mobile-menu {
      display: none;
      padding: 0 0 16px;
    }

    .mobile-menu-panel {
      display: grid;
      gap: 8px;
      padding: 12px;
      border: 1px solid var(--color-border);
      border-radius: 22px;
      background: #fff;
      box-shadow: var(--shadow-soft);
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      min-height: 46px;
      padding: 0 20px;
      border-radius: 999px;
      font-weight: 750;
      font-size: 15px;
      border: 1px solid transparent;
      transition: transform .22s ease, box-shadow .22s ease, background .22s ease, color .22s ease, border-color .22s ease;
      white-space: nowrap;
    }

    .btn-primary {
      background: var(--color-primary);
      color: #fff;
      box-shadow: 0 14px 32px rgba(37, 99, 235, .22);
    }

    .btn-primary:hover {
      background: var(--color-primary-dark);
      transform: translateY(-2px);
      box-shadow: 0 18px 42px rgba(37, 99, 235, .30);
    }

    .btn-secondary {
      background: #fff;
      color: var(--color-primary-dark);
      border-color: rgba(37, 99, 235, .18);
      box-shadow: 0 10px 26px rgba(15, 45, 90, .06);
    }

    .btn-secondary:hover {
      background: var(--color-soft);
      transform: translateY(-2px);
      border-color: rgba(37, 99, 235, .30);
    }

    .section {
      padding: 96px 0;
    }

    .section-tight {
      padding: 72px 0;
    }

    .section-heading {
      max-width: 820px;
      margin-bottom: 34px;
    }

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      margin-bottom: 14px;
      padding: 7px 12px;
      border-radius: 999px;
      background: rgba(37, 99, 235, .08);
      color: var(--color-primary-dark);
      font-size: 13px;
      font-weight: 800;
    }

    .eyebrow::before {
      content: "";
      width: 8px;
      height: 8px;
      border-radius: 999px;
      background: var(--color-accent);
      box-shadow: 0 0 0 5px rgba(56, 189, 248, .16);
    }

    .section-title {
      margin: 0;
      font-size: clamp(30px, 4vw, 44px);
      line-height: 1.15;
      font-weight: 820;
      letter-spacing: -.04em;
      color: #111827;
    }

    .section-desc {
      margin: 14px 0 0;
      color: var(--color-muted);
      font-size: 17px;
      max-width: 760px;
    }

    .hero {
      position: relative;
      padding: 78px 0 36px;
      overflow: hidden;
    }

    .hero::before {
      content: "";
      position: absolute;
      inset: 0;
      pointer-events: none;
      background-image:
        linear-gradient(rgba(37, 99, 235, .045) 1px, transparent 1px),
        linear-gradient(90deg, rgba(37, 99, 235, .045) 1px, transparent 1px);
      background-size: 38px 38px;
      mask-image: linear-gradient(180deg, black, transparent 76%);
    }

    .hero-grid {
      position: relative;
      display: grid;
      grid-template-columns: minmax(0, 1.05fr) minmax(360px, .75fr);
      gap: 48px;
      align-items: center;
    }

    .hero h1 {
      margin: 0;
      font-size: clamp(38px, 6vw, 64px);
      line-height: 1.1;
      font-weight: 850;
      letter-spacing: -.055em;
      color: #0F172A;
    }

    .hero-lead {
      margin: 22px 0 0;
      max-width: 660px;
      color: #526071;
      font-size: clamp(17px, 2vw, 20px);
      line-height: 1.75;
    }

    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 14px;
      margin-top: 30px;
    }

    .trust-row {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-top: 28px;
    }

    .trust-item,
    .badge {
      display: inline-flex;
      align-items: center;
      gap: 7px;
      border-radius: 999px;
      border: 1px solid rgba(37, 99, 235, .12);
      background: rgba(255, 255, 255, .78);
      color: #475467;
      padding: 8px 12px;
      font-size: 14px;
      font-weight: 650;
    }

    .trust-dot {
      width: 8px;
      height: 8px;
      border-radius: 99px;
      background: #22C55E;
    }

    .promo-card {
      position: relative;
      border: 1px solid rgba(37, 99, 235, .14);
      border-radius: 30px;
      background:
        radial-gradient(circle at 88% 10%, rgba(56, 189, 248, .22), transparent 30%),
        linear-gradient(180deg, rgba(255,255,255,.96), rgba(238,246,255,.86));
      box-shadow: var(--shadow-soft);
      padding: 24px;
      overflow: hidden;
    }

    .promo-card::after {
      content: "";
      position: absolute;
      width: 180px;
      height: 180px;
      right: -70px;
      bottom: -80px;
      border-radius: 999px;
      border: 28px solid rgba(37, 99, 235, .08);
    }

    .promo-top {
      display: flex;
      justify-content: space-between;
      gap: 18px;
      align-items: flex-start;
      position: relative;
      z-index: 1;
    }

    .promo-label {
      display: inline-flex;
      padding: 6px 10px;
      border-radius: 999px;
      background: #fff;
      color: var(--color-primary-dark);
      font-size: 13px;
      font-weight: 800;
      border: 1px solid rgba(37, 99, 235, .14);
    }

    .promo-title {
      margin: 12px 0 8px;
      font-size: 28px;
      line-height: 1.18;
      font-weight: 820;
      color: #0F172A;
    }

    .promo-desc {
      margin: 0;
      color: var(--color-muted);
      font-size: 15px;
    }

    .ticket {
      margin-top: 22px;
      padding: 18px;
      border: 1px dashed rgba(37, 99, 235, .35);
      border-radius: 22px;
      background: rgba(255,255,255,.80);
      position: relative;
      z-index: 1;
    }

    .ticket-row {
      display: flex;
      justify-content: space-between;
      gap: 18px;
      padding: 14px 0;
      border-bottom: 1px solid rgba(221, 231, 243, .92);
    }

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

    .ticket-row:first-child {
      padding-top: 0;
    }

    .ticket-name {
      font-weight: 750;
      color: #172033;
    }

    .ticket-note {
      color: var(--color-muted);
      font-size: 14px;
      text-align: right;
    }

    .commit-strip {
      position: relative;
      margin-top: 42px;
      border: 1px solid rgba(37, 99, 235, .12);
      border-radius: 24px;
      background: rgba(255,255,255,.82);
      box-shadow: 0 16px 42px rgba(15, 45, 90, .06);
      overflow: hidden;
    }

    .commit-grid {
      display: grid;
      grid-template-columns: repeat(4, minmax(0, 1fr));
    }

    .commit-item {
      padding: 20px 22px;
      border-right: 1px solid var(--color-border);
    }

    .commit-item:last-child {
      border-right: 0;
    }

    .commit-k {
      color: var(--color-primary-dark);
      font-weight: 850;
      font-size: 18px;
    }

    .commit-v {
      color: var(--color-muted);
      font-size: 14px;
      margin-top: 2px;
    }

    .ladder {
      display: grid;
      grid-template-columns: repeat(4, minmax(0, 1fr));
      gap: 18px;
      align-items: start;
    }

    .ladder-card {
      min-height: 250px;
      padding: 22px;
      border-radius: var(--radius-card);
      border: 1px solid var(--color-border);
      background: #fff;
      box-shadow: var(--shadow-soft);
      transition: transform .22s ease, box-shadow .22s ease, border-color .22s ease;
    }

    .ladder-card:nth-child(2) { margin-top: 18px; }
    .ladder-card:nth-child(3) { margin-top: 36px; }
    .ladder-card:nth-child(4) { margin-top: 54px; }

    .ladder-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-lift);
      border-color: rgba(37, 99, 235, .24);
    }

    .step-num {
      width: 42px;
      height: 42px;
      border-radius: 16px;
      display: grid;
      place-items: center;
      color: #fff;
      font-weight: 850;
      background: linear-gradient(135deg, #2563EB, #38BDF8);
      box-shadow: 0 12px 26px rgba(37,99,235,.22);
    }

    .card-title {
      margin: 18px 0 8px;
      font-size: 21px;
      line-height: 1.28;
      font-weight: 800;
      color: #111827;
    }

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

    .mini-link {
      margin-top: 18px;
      display: inline-flex;
      align-items: center;
      color: var(--color-primary-dark);
      font-weight: 800;
      font-size: 14px;
    }

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

    .category-band {
      border-radius: 32px;
      border: 1px solid rgba(37, 99, 235, .12);
      background: linear-gradient(135deg, #FFFFFF, #EEF6FF);
      padding: 26px;
      box-shadow: var(--shadow-soft);
    }

    .category-grid {
      display: grid;
      grid-template-columns: .9fr 1.1fr;
      gap: 24px;
      align-items: stretch;
    }

    .category-panel {
      border-radius: 24px;
      background: #fff;
      border: 1px solid var(--color-border);
      padding: 24px;
      min-height: 250px;
      transition: transform .22s ease, box-shadow .22s ease, border-color .22s ease;
    }

    .category-panel:hover {
      transform: translateY(-3px);
      box-shadow: var(--shadow-lift);
      border-color: rgba(37, 99, 235, .24);
    }

    .tag-cloud {
      display: flex;
      flex-wrap: wrap;
      gap: 9px;
      margin-top: 18px;
    }

    .tag {
      display: inline-flex;
      padding: 7px 11px;
      border-radius: 999px;
      background: #F2F7FD;
      color: #526071;
      font-size: 13px;
      font-weight: 700;
    }

    .plans-wrap {
      overflow-x: auto;
      padding-bottom: 10px;
    }

    .plans {
      min-width: 900px;
      display: grid;
      grid-template-columns: .92fr 1.08fr .92fr;
      gap: 18px;
      align-items: stretch;
    }

    .plan {
      border: 1px solid var(--color-border);
      border-radius: 26px;
      background: #fff;
      box-shadow: var(--shadow-soft);
      padding: 24px;
      position: relative;
      transition: transform .22s ease, box-shadow .22s ease;
    }

    .plan:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-lift);
    }

    .plan.featured {
      border-color: rgba(37, 99, 235, .30);
      transform: scale(1.03);
      background: linear-gradient(180deg, #FFFFFF, #F4F9FF);
    }

    .plan-badge {
      position: absolute;
      top: 18px;
      right: 18px;
      padding: 6px 10px;
      border-radius: 999px;
      background: rgba(37, 99, 235, .10);
      color: var(--color-primary-dark);
      font-size: 12px;
      font-weight: 850;
    }

    .plan h3 {
      margin: 0 0 10px;
      font-size: 24px;
      line-height: 1.2;
      font-weight: 820;
    }

    .plan-price {
      margin: 12px 0 18px;
      color: var(--color-primary-dark);
      font-weight: 850;
      font-size: 20px;
    }

    .plan-list {
      display: grid;
      gap: 12px;
      margin: 0 0 22px;
      padding: 0;
      list-style: none;
    }

    .plan-list li {
      display: flex;
      gap: 10px;
      color: #475467;
      font-size: 15px;
    }

    .check {
      flex: 0 0 auto;
      width: 20px;
      height: 20px;
      border-radius: 999px;
      background: rgba(37,99,235,.10);
      color: var(--color-primary-dark);
      display: grid;
      place-items: center;
      font-size: 13px;
      font-weight: 900;
      margin-top: 3px;
    }

    .proof-grid {
      display: grid;
      grid-template-columns: 1fr 1.2fr;
      gap: 24px;
      align-items: stretch;
    }

    .proof-card,
    .metric-card {
      border: 1px solid var(--color-border);
      background: #fff;
      border-radius: var(--radius-card);
      box-shadow: var(--shadow-soft);
      padding: 24px;
    }

    .metric-grid {
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 14px;
    }

    .metric-card {
      box-shadow: none;
      border-radius: 20px;
      background: #F8FAFC;
    }

    .metric-num {
      font-size: 32px;
      line-height: 1;
      font-weight: 850;
      color: var(--color-primary-dark);
      letter-spacing: -.04em;
    }

    .metric-label {
      margin-top: 8px;
      color: var(--color-muted);
      font-size: 14px;
    }

    .entry-banner {
      position: relative;
      border-radius: 34px;
      padding: 34px;
      overflow: hidden;
      border: 1px solid rgba(37, 99, 235, .16);
      background:
        radial-gradient(circle at 92% 12%, rgba(56,189,248,.24), transparent 26%),
        linear-gradient(135deg, #EAF4FF, #FFFFFF 72%);
      box-shadow: var(--shadow-soft);
    }

    .entry-banner::before {
      content: "";
      position: absolute;
      inset: 0;
      background-image:
        linear-gradient(rgba(37,99,235,.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(37,99,235,.05) 1px, transparent 1px);
      background-size: 32px 32px;
      opacity: .75;
    }

    .entry-inner {
      position: relative;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 28px;
    }

    .entry-actions {
      display: flex;
      flex-wrap: wrap;
      justify-content: flex-end;
      gap: 12px;
    }

    .contact-grid {
      display: grid;
      grid-template-columns: .82fr 1.18fr;
      gap: 28px;
      align-items: start;
    }

    .process-list {
      display: grid;
      gap: 14px;
      margin-top: 22px;
    }

    .process-item {
      display: flex;
      gap: 14px;
      padding: 16px;
      border-radius: 20px;
      border: 1px solid var(--color-border);
      background: rgba(255,255,255,.78);
    }

    .process-index {
      flex: 0 0 auto;
      width: 34px;
      height: 34px;
      display: grid;
      place-items: center;
      border-radius: 13px;
      background: var(--color-soft);
      color: var(--color-primary-dark);
      font-weight: 850;
    }

    .form-card {
      padding: 26px;
      border-radius: 30px;
      border: 1px solid rgba(37, 99, 235, .14);
      background: #fff;
      box-shadow: var(--shadow-soft);
    }

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

    .form-field {
      display: grid;
      gap: 7px;
    }

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

    .form-field label {
      color: #344054;
      font-weight: 750;
      font-size: 14px;
    }

    .form-field input,
    .form-field select,
    .form-field textarea {
      width: 100%;
      border: 1px solid var(--color-border);
      border-radius: 16px;
      background: #fff;
      color: var(--color-text);
      padding: 12px 14px;
      min-height: 48px;
      transition: border-color .2s ease, box-shadow .2s ease, background .2s ease;
    }

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

    .form-field input:focus,
    .form-field select:focus,
    .form-field textarea:focus {
      outline: none;
      border-color: rgba(37, 99, 235, .55);
      box-shadow: 0 0 0 4px rgba(37, 99, 235, .10);
      background: #FCFDFF;
    }

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

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

    .faq-item {
      border: 1px solid var(--color-border);
      border-radius: 22px;
      background: #fff;
      box-shadow: 0 14px 38px rgba(15, 45, 90, .055);
      overflow: hidden;
      transition: border-color .22s ease, box-shadow .22s ease;
    }

    .faq-item:hover {
      border-color: rgba(37,99,235,.24);
      box-shadow: var(--shadow-soft);
    }

    .faq-question {
      width: 100%;
      border: 0;
      background: #fff;
      padding: 18px 20px;
      display: flex;
      align-items: center;
      gap: 12px;
      text-align: left;
      color: #111827;
      font-weight: 800;
    }

    .q-mark {
      width: 30px;
      height: 30px;
      border-radius: 999px;
      background: var(--color-soft);
      color: var(--color-primary-dark);
      display: grid;
      place-items: center;
      font-weight: 850;
      flex: 0 0 auto;
    }

    .faq-answer {
      padding: 0 20px 18px 62px;
      color: var(--color-muted);
      font-size: 15px;
      display: block;
    }

    .site-footer {
      margin-top: 30px;
      border-top: 1px solid var(--color-border);
      background: linear-gradient(180deg, #FFFFFF, #F1F7FE);
      padding: 48px 0 28px;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.1fr .9fr .9fr;
      gap: 28px;
      align-items: start;
    }

    .footer-title {
      margin: 16px 0 8px;
      font-weight: 820;
      font-size: 18px;
    }

    .footer-text,
    .footer-link,
    .copyright {
      color: var(--color-muted);
      font-size: 14px;
    }

    .footer-links {
      display: grid;
      gap: 10px;
      margin-top: 12px;
    }

    .footer-link:hover {
      color: var(--color-primary-dark);
    }

    .footer-note {
      padding: 14px 16px;
      border-radius: 18px;
      background: rgba(255,255,255,.72);
      border: 1px solid var(--color-border);
      color: var(--color-muted);
      font-size: 14px;
    }

    .footer-bottom {
      display: flex;
      justify-content: space-between;
      gap: 20px;
      flex-wrap: wrap;
      margin-top: 34px;
      padding-top: 20px;
      border-top: 1px solid rgba(221, 231, 243, .8);
    }

    @media (max-width: 1024px) {
      .nav-shell {
        display: flex;
        justify-content: space-between;
        min-height: 68px;
      }

      .desktop-nav {
        display: none;
      }

      .mobile-toggle {
        display: inline-flex;
      }

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

      .hero-grid,
      .category-grid,
      .proof-grid,
      .contact-grid {
        grid-template-columns: 1fr;
      }

      .promo-card {
        max-width: 620px;
      }

      .commit-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
      }

      .commit-item:nth-child(2) {
        border-right: 0;
      }

      .commit-item:nth-child(1),
      .commit-item:nth-child(2) {
        border-bottom: 1px solid var(--color-border);
      }

      .ladder {
        grid-template-columns: repeat(2, minmax(0, 1fr));
      }

      .ladder-card:nth-child(n) {
        margin-top: 0;
      }

      .entry-inner {
        align-items: flex-start;
        flex-direction: column;
      }

      .entry-actions {
        justify-content: flex-start;
      }

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

    @media (max-width: 768px) {
      .site-container {
        width: min(100% - 32px, var(--container));
      }

      .hero {
        padding-top: 52px;
      }

      .section {
        padding: 70px 0;
      }

      .section-tight {
        padding: 56px 0;
      }

      .trust-row,
      .hero-actions {
        flex-direction: column;
        align-items: stretch;
      }

      .btn {
        width: 100%;
      }

      .commit-grid,
      .ladder,
      .metric-grid,
      .faq-grid,
      .form-grid,
      .footer-grid {
        grid-template-columns: 1fr;
      }

      .commit-item {
        border-right: 0;
        border-bottom: 1px solid var(--color-border);
      }

      .commit-item:last-child {
        border-bottom: 0;
      }

      .plans {
        min-width: 0;
        grid-template-columns: 1fr;
      }

      .plan.featured {
        transform: none;
      }

      .entry-banner,
      .category-band {
        padding: 22px;
        border-radius: 26px;
      }

      .faq-answer {
        padding-left: 20px;
      }

      .logo-text {
        font-size: 14px;
      }

      .logo-mark {
        max-width: calc(100vw - 96px);
      }
    }

    @media (max-width: 520px) {
      .promo-top,
      .ticket-row,
      .footer-bottom {
        flex-direction: column;
      }

      .ticket-note {
        text-align: left;
      }

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

      .section-title {
        font-size: 29px;
      }
    }

/* roulang page: category1 */
:root{
      --color-primary:#2563EB;
      --color-primary-dark:#1E40AF;
      --color-accent:#38BDF8;
      --color-bg:#F8FAFC;
      --color-soft:#EEF6FF;
      --color-card:#FFFFFF;
      --color-text:#172033;
      --color-muted:#667085;
      --color-border:#DDE7F3;
      --radius-card:24px;
      --radius-inner:18px;
      --shadow-soft:0 20px 60px rgba(15,45,90,.08);
      --shadow-hover:0 24px 70px rgba(15,45,90,.12);
    }
    *{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(--color-text);
      background:
        radial-gradient(circle at 12% 8%, rgba(56,189,248,.16), transparent 28%),
        linear-gradient(180deg,#fff 0%,var(--color-bg) 42%,#fff 100%);
      line-height:1.75;
      -webkit-font-smoothing:antialiased;
      text-rendering:optimizeLegibility;
    }
    a{color:inherit;text-decoration:none}
    img,svg{display:block;max-width:100%}
    button,input,select,textarea{font:inherit}
    button{cursor:pointer}
    ::selection{background:rgba(37,99,235,.16)}
    :focus-visible{outline:3px solid rgba(56,189,248,.45);outline-offset:3px;border-radius:12px}
    .site-container{width:min(100% - 40px,1280px);margin:0 auto}
    .site-header{
      position:sticky;
      top:0;
      z-index:50;
      background:rgba(255,255,255,.84);
      backdrop-filter:blur(18px);
      border-bottom:1px solid rgba(221,231,243,.85);
    }
    .nav-shell{
      height:78px;
      display:grid;
      grid-template-columns:1fr auto 1fr;
      align-items:center;
      gap:22px;
    }
    .nav-group{display:flex;align-items:center;gap:10px}
    .nav-left{justify-content:flex-start}
    .nav-right{justify-content:flex-end}
    .nav-link{
      display:inline-flex;
      align-items:center;
      min-height:42px;
      padding:9px 15px;
      border-radius:999px;
      color:#475467;
      font-weight:650;
      font-size:15px;
      transition:all .22s ease;
    }
    .nav-link:hover{color:var(--color-primary);background:var(--color-soft)}
    .nav-link.active{color:var(--color-primary-dark);background:rgba(37,99,235,.10)}
    .logo-mark{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:10px;
      min-width:0;
      color:var(--color-text);
      font-weight:800;
      letter-spacing:-.02em;
    }
    .logo-icon{
      width:38px;
      height:38px;
      display:grid;
      place-items:center;
      border-radius:14px;
      background:linear-gradient(135deg,var(--color-primary),var(--color-accent));
      color:#fff;
      box-shadow:0 12px 26px rgba(37,99,235,.22);
      font-size:18px;
      flex:0 0 auto;
    }
    .logo-text{font-size:18px;white-space:nowrap}
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      min-height:46px;
      padding:12px 20px;
      border-radius:999px;
      border:1px solid transparent;
      font-weight:750;
      font-size:15px;
      transition:transform .22s ease,box-shadow .22s ease,background .22s ease,border-color .22s ease,color .22s ease;
      white-space:nowrap;
    }
    .btn:hover{transform:translateY(-2px)}
    .btn-primary{
      color:#fff;
      background:linear-gradient(135deg,var(--color-primary),#2F7CF6);
      box-shadow:0 14px 30px rgba(37,99,235,.22);
    }
    .btn-primary:hover{background:linear-gradient(135deg,var(--color-primary-dark),var(--color-primary));box-shadow:0 18px 38px rgba(37,99,235,.28)}
    .btn-secondary{
      color:var(--color-primary-dark);
      background:#fff;
      border-color:rgba(37,99,235,.18);
      box-shadow:0 10px 24px rgba(15,45,90,.06);
    }
    .btn-secondary:hover{background:var(--color-soft);border-color:rgba(37,99,235,.28)}
    .mobile-toggle{
      display:none;
      width:46px;
      height:46px;
      align-items:center;
      justify-content:center;
      border-radius:16px;
      border:1px solid var(--color-border);
      background:#fff;
      color:var(--color-text);
      box-shadow:0 10px 24px rgba(15,45,90,.06);
    }
    .mobile-menu{display:none;padding:0 0 16px}
    .mobile-menu-panel{
      display:grid;
      gap:8px;
      padding:14px;
      background:#fff;
      border:1px solid var(--color-border);
      border-radius:22px;
      box-shadow:var(--shadow-soft);
    }
    .section{padding:86px 0}
    .section-tight{padding:64px 0}
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:8px 12px;
      border-radius:999px;
      background:rgba(37,99,235,.09);
      color:var(--color-primary-dark);
      font-weight:750;
      font-size:14px;
      border:1px solid rgba(37,99,235,.12);
    }
    .eyebrow:before{
      content:"";
      width:8px;
      height:8px;
      border-radius:99px;
      background:var(--color-accent);
      box-shadow:0 0 0 5px rgba(56,189,248,.14);
    }
    .breadcrumb{
      display:flex;
      align-items:center;
      flex-wrap:wrap;
      gap:8px;
      color:#7A8799;
      font-size:14px;
      margin-bottom:22px;
    }
    .breadcrumb a{transition:color .2s ease}
    .breadcrumb a:hover{color:var(--color-primary)}
    .breadcrumb .current{color:var(--color-text);font-weight:700}
    .hero-index{
      position:relative;
      padding:62px 0 72px;
      overflow:hidden;
    }
    .hero-index:before{
      content:"";
      position:absolute;
      inset:0;
      background:
        linear-gradient(rgba(37,99,235,.045) 1px, transparent 1px),
        linear-gradient(90deg, rgba(37,99,235,.045) 1px, transparent 1px);
      background-size:34px 34px;
      mask-image:linear-gradient(180deg,#000,transparent 82%);
      pointer-events:none;
    }
    .hero-grid{
      position:relative;
      display:grid;
      grid-template-columns:minmax(0,1.05fr) minmax(360px,.72fr);
      gap:34px;
      align-items:stretch;
    }
    h1{
      margin:18px 0 18px;
      font-size:clamp(36px,5vw,58px);
      line-height:1.12;
      letter-spacing:-.04em;
      font-weight:850;
      color:var(--color-text);
    }
    h2{
      margin:0;
      font-size:clamp(28px,3.8vw,42px);
      line-height:1.2;
      letter-spacing:-.025em;
      font-weight:820;
    }
    h3{
      margin:0;
      font-size:21px;
      line-height:1.35;
      font-weight:780;
    }
    .lead{
      max-width:760px;
      color:var(--color-muted);
      font-size:18px;
      line-height:1.78;
      margin:0 0 26px;
    }
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}
    .quick-panel{
      position:relative;
      background:rgba(255,255,255,.92);
      border:1px solid rgba(221,231,243,.92);
      border-radius:28px;
      box-shadow:var(--shadow-soft);
      padding:26px;
      overflow:hidden;
    }
    .quick-panel:after{
      content:"";
      position:absolute;
      width:180px;
      height:180px;
      right:-60px;
      top:-70px;
      border-radius:999px;
      background:rgba(56,189,248,.16);
    }
    .panel-head{
      position:relative;
      z-index:1;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:16px;
      padding-bottom:18px;
      border-bottom:1px solid var(--color-border);
    }
    .panel-title{font-weight:820;font-size:20px}
    .panel-sub{font-size:14px;color:var(--color-muted);margin-top:3px}
    .status-dot{
      display:inline-flex;
      align-items:center;
      gap:6px;
      font-size:13px;
      font-weight:750;
      color:#047857;
      background:#ECFDF3;
      padding:7px 10px;
      border-radius:999px;
      border:1px solid rgba(4,120,87,.12);
    }
    .status-dot:before{content:"";width:7px;height:7px;border-radius:99px;background:#10B981}
    .panel-list{position:relative;z-index:1;display:grid;gap:12px;margin-top:20px}
    .panel-item{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      padding:14px;
      border-radius:18px;
      background:#F8FBFF;
      border:1px solid rgba(221,231,243,.82);
    }
    .panel-item strong{font-size:15px}
    .panel-item span{color:var(--color-muted);font-size:13px}
    .badge{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      min-height:28px;
      padding:5px 10px;
      border-radius:999px;
      background:rgba(37,99,235,.09);
      color:var(--color-primary-dark);
      font-weight:750;
      font-size:13px;
      border:1px solid rgba(37,99,235,.12);
      white-space:nowrap;
    }
    .badge.gray{background:#F2F5F9;color:#5E6B7D;border-color:#E5ECF4}
    .content-layout{
      display:grid;
      grid-template-columns:minmax(0,1fr) 330px;
      gap:28px;
      align-items:start;
    }
    .topic-list{display:grid;gap:18px}
    .topic-card{
      display:grid;
      grid-template-columns:64px minmax(0,1fr) auto;
      gap:18px;
      align-items:center;
      padding:22px;
      background:#fff;
      border:1px solid var(--color-border);
      border-radius:24px;
      box-shadow:0 16px 40px rgba(15,45,90,.055);
      transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
    }
    .topic-card:hover{
      transform:translateY(-3px);
      border-color:rgba(37,99,235,.25);
      box-shadow:var(--shadow-hover);
    }
    .topic-num{
      width:54px;
      height:54px;
      display:grid;
      place-items:center;
      border-radius:19px;
      background:linear-gradient(135deg,#EEF6FF,#fff);
      color:var(--color-primary-dark);
      font-weight:850;
      border:1px solid rgba(37,99,235,.14);
    }
    .topic-card p{margin:7px 0 12px;color:var(--color-muted);font-size:15px;line-height:1.68}
    .tag-row{display:flex;flex-wrap:wrap;gap:8px}
    .mini-link{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      min-height:38px;
      padding:9px 13px;
      border-radius:999px;
      color:var(--color-primary-dark);
      background:var(--color-soft);
      border:1px solid rgba(37,99,235,.12);
      font-weight:750;
      font-size:14px;
      transition:all .2s ease;
      white-space:nowrap;
    }
    .mini-link:hover{background:var(--color-primary);color:#fff;transform:translateY(-1px)}
    .side-card{
      background:rgba(255,255,255,.94);
      border:1px solid var(--color-border);
      border-radius:24px;
      box-shadow:var(--shadow-soft);
      padding:22px;
    }
    .sticky-side{position:sticky;top:100px;display:grid;gap:16px}
    .side-title{
      font-size:18px;
      font-weight:820;
      margin-bottom:12px;
      color:var(--color-text);
    }
    .filter-tags{display:flex;flex-wrap:wrap;gap:8px}
    .filter-chip{
      border:1px solid var(--color-border);
      background:#fff;
      color:#526173;
      border-radius:999px;
      padding:8px 11px;
      font-size:14px;
      font-weight:700;
      transition:all .2s ease;
    }
    .filter-chip:hover,.filter-chip.active{background:var(--color-soft);border-color:rgba(37,99,235,.24);color:var(--color-primary-dark)}
    .meta-list{display:grid;gap:11px;margin:0;padding:0;list-style:none}
    .meta-list li{
      display:flex;
      justify-content:space-between;
      gap:12px;
      padding-bottom:10px;
      border-bottom:1px dashed #DDE7F3;
      color:var(--color-muted);
      font-size:14px;
    }
    .meta-list li:last-child{border-bottom:0;padding-bottom:0}
    .meta-list strong{color:var(--color-text)}
    .section-head{
      display:flex;
      align-items:flex-end;
      justify-content:space-between;
      gap:24px;
      margin-bottom:28px;
    }
    .section-head p{margin:10px 0 0;color:var(--color-muted);max-width:660px}
    .feature-strip{
      display:grid;
      grid-template-columns:repeat(4,minmax(0,1fr));
      gap:14px;
    }
    .feature-box{
      padding:18px;
      border-radius:22px;
      background:#fff;
      border:1px solid var(--color-border);
      box-shadow:0 14px 36px rgba(15,45,90,.05);
    }
    .feature-icon{
      width:38px;height:38px;border-radius:14px;
      display:grid;place-items:center;
      background:var(--color-soft);
      color:var(--color-primary);
      margin-bottom:12px;
      font-weight:850;
    }
    .feature-box strong{display:block;font-size:17px;margin-bottom:5px}
    .feature-box p{margin:0;color:var(--color-muted);font-size:14px;line-height:1.65}
    .process-card{
      border-radius:28px;
      background:linear-gradient(135deg,#fff,#F7FBFF);
      border:1px solid var(--color-border);
      box-shadow:var(--shadow-soft);
      padding:30px;
    }
    .process-grid{
      display:grid;
      grid-template-columns:repeat(4,minmax(0,1fr));
      gap:14px;
      margin-top:22px;
    }
    .process-step{
      position:relative;
      padding:18px;
      border-radius:20px;
      background:#fff;
      border:1px solid rgba(221,231,243,.9);
    }
    .process-step .count{
      width:34px;height:34px;border-radius:13px;
      display:grid;place-items:center;
      background:rgba(37,99,235,.10);
      color:var(--color-primary-dark);
      font-weight:850;
      margin-bottom:12px;
    }
    .process-step p{margin:6px 0 0;color:var(--color-muted);font-size:14px;line-height:1.65}
    .faq-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
    .faq-item{
      background:#fff;
      border:1px solid var(--color-border);
      border-radius:22px;
      padding:20px;
      box-shadow:0 14px 36px rgba(15,45,90,.045);
    }
    .faq-q{display:flex;gap:10px;align-items:flex-start;font-weight:800;font-size:17px}
    .faq-q span{
      width:28px;height:28px;border-radius:999px;
      display:grid;place-items:center;
      background:var(--color-soft);
      color:var(--color-primary-dark);
      flex:0 0 auto;
      font-size:13px;
    }
    .faq-item p{margin:10px 0 0;color:var(--color-muted);font-size:15px}
    .cta-banner{
      position:relative;
      overflow:hidden;
      border-radius:30px;
      background:
        radial-gradient(circle at 88% 24%, rgba(56,189,248,.22), transparent 28%),
        linear-gradient(135deg,#EEF6FF 0%,#FFFFFF 58%,#F8FAFC 100%);
      border:1px solid rgba(37,99,235,.14);
      box-shadow:var(--shadow-soft);
      padding:34px;
    }
    .cta-banner:before{
      content:"";
      position:absolute;
      inset:0;
      background:
        linear-gradient(rgba(37,99,235,.045) 1px, transparent 1px),
        linear-gradient(90deg,rgba(37,99,235,.045) 1px,transparent 1px);
      background-size:28px 28px;
      pointer-events:none;
    }
    .cta-inner{
      position:relative;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:24px;
    }
    .cta-inner p{margin:10px 0 0;color:var(--color-muted);max-width:680px}
    .form-wrap{
      display:grid;
      grid-template-columns:.88fr 1.12fr;
      gap:24px;
      align-items:start;
    }
    .contact-card{
      background:#fff;
      border:1px solid var(--color-border);
      border-radius:28px;
      box-shadow:var(--shadow-soft);
      padding:26px;
    }
    .contact-tips{
      display:grid;
      gap:13px;
      margin-top:20px;
    }
    .tip-line{
      display:flex;
      gap:12px;
      align-items:flex-start;
      padding:15px;
      border-radius:18px;
      background:#fff;
      border:1px solid var(--color-border);
    }
    .tip-line span{
      width:30px;height:30px;border-radius:12px;
      background:var(--color-soft);
      display:grid;place-items:center;
      color:var(--color-primary-dark);
      font-weight:850;
      flex:0 0 auto;
    }
    .tip-line strong{display:block;font-size:15px}
    .tip-line p{margin:2px 0 0;color:var(--color-muted);font-size:14px}
    .form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
    .form-field{display:grid;gap:7px}
    .form-field.full{grid-column:1/-1}
    label{font-size:14px;font-weight:750;color:#344054}
    input,select,textarea{
      width:100%;
      border:1px solid var(--color-border);
      border-radius:16px;
      background:#fff;
      color:var(--color-text);
      padding:13px 14px;
      min-height:48px;
      transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
    }
    textarea{min-height:112px;resize:vertical}
    input:focus,select:focus,textarea:focus{
      outline:none;
      border-color:rgba(37,99,235,.55);
      box-shadow:0 0 0 4px rgba(37,99,235,.10);
      background:#FCFDFF;
    }
    .form-note{font-size:13px;color:var(--color-muted);margin:12px 0 0}
    .site-footer{
      background:#F3F7FC;
      border-top:1px solid var(--color-border);
      padding:54px 0 28px;
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.2fr .7fr .9fr;
      gap:34px;
      align-items:start;
    }
    .footer-title{font-weight:820;margin:18px 0 10px;color:var(--color-text)}
    .footer-text,.footer-note{color:var(--color-muted);font-size:14px;line-height:1.7;margin:0}
    .footer-links{display:grid;gap:9px}
    .footer-link{color:#526173;font-weight:650;transition:color .2s ease}
    .footer-link:hover{color:var(--color-primary)}
    .footer-bottom{
      display:flex;
      justify-content:space-between;
      gap:20px;
      flex-wrap:wrap;
      margin-top:34px;
      padding-top:22px;
      border-top:1px solid rgba(221,231,243,.9);
    }
    .copyright{color:#718096;font-size:13px}
    @media (max-width:1024px){
      .desktop-nav{display:none}
      .nav-shell{grid-template-columns:1fr auto;height:72px}
      .logo-mark{justify-self:start}
      .mobile-toggle{display:inline-flex;justify-self:end}
      .mobile-menu.open{display:block}
      .hero-grid,.content-layout,.form-wrap{grid-template-columns:1fr}
      .sticky-side{position:static}
      .feature-strip,.process-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
      .topic-card{grid-template-columns:56px minmax(0,1fr)}
      .topic-card .mini-link{grid-column:2}
      .footer-grid{grid-template-columns:1fr 1fr}
    }
    @media (max-width:768px){
      .site-container{width:min(100% - 32px,1280px)}
      .hero-index{padding:42px 0 54px}
      .section{padding:64px 0}
      .section-tight{padding:50px 0}
      .section-head{display:block}
      .quick-panel,.process-card,.contact-card,.cta-banner{padding:22px}
      .feature-strip,.process-grid,.faq-grid,.form-grid{grid-template-columns:1fr}
      .cta-inner{display:block}
      .cta-inner .hero-actions{margin-top:18px}
      .footer-grid{grid-template-columns:1fr}
    }
    @media (max-width:520px){
      .logo-text{font-size:15px;max-width:230px;overflow:hidden;text-overflow:ellipsis}
      .logo-icon{width:34px;height:34px;border-radius:12px}
      h1{font-size:35px}
      .lead{font-size:16px}
      .hero-actions,.btn{width:100%}
      .topic-card{grid-template-columns:1fr;gap:12px}
      .topic-card .mini-link{grid-column:auto;width:100%}
      .topic-num{width:48px;height:48px}
      .panel-item{align-items:flex-start;flex-direction:column}
      .footer-bottom{display:grid}
    }

/* roulang page: category2 */
:root{
      --color-primary:#2563EB;
      --color-primary-dark:#1E40AF;
      --color-accent:#38BDF8;
      --color-bg:#F8FAFC;
      --color-soft:#EEF6FF;
      --color-card:#FFFFFF;
      --color-text:#172033;
      --color-muted:#667085;
      --color-border:#DDE7F3;
      --radius-card:24px;
      --radius-inner:18px;
      --shadow-soft:0 20px 60px rgba(15, 45, 90, .08);
      --shadow-hover:0 24px 70px rgba(15, 45, 90, .12);
      --container:1200px;
    }
    html{
      scroll-behavior:smooth;
    }
    *{
      box-sizing:border-box;
    }
    body{
      margin:0;
      font-family:system-ui,-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
      color:var(--color-text);
      background:
        radial-gradient(circle at 15% 10%, rgba(56,189,248,.14), transparent 30%),
        radial-gradient(circle at 85% 0%, rgba(37,99,235,.10), transparent 24%),
        linear-gradient(180deg, #ffffff 0%, #f8fbff 45%, #f8fafc 100%);
      line-height:1.75;
      -webkit-font-smoothing:antialiased;
      text-rendering:optimizeLegibility;
    }
    a{
      color:inherit;
      text-decoration:none;
    }
    img{
      max-width:100%;
      display:block;
    }
    button,input,select,textarea{
      font:inherit;
    }
    :focus-visible{
      outline:3px solid rgba(56,189,248,.35);
      outline-offset:2px;
    }
    .site-container{
      width:min(var(--container), calc(100% - 40px));
      margin:0 auto;
    }
    .site-header{
      position:sticky;
      top:0;
      z-index:50;
      background:rgba(255,255,255,.82);
      backdrop-filter:blur(16px);
      border-bottom:1px solid rgba(221,231,243,.9);
    }
    .nav-shell{
      min-height:76px;
      display:grid;
      grid-template-columns:1fr auto 1fr;
      align-items:center;
      gap:18px;
    }
    .nav-group{
      display:flex;
      align-items:center;
      gap:8px;
      min-width:0;
    }
    .nav-left{justify-content:flex-start}
    .nav-right{justify-content:flex-end}
    .logo-mark{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:10px;
      min-width:0;
      color:var(--color-text);
      font-weight:800;
      letter-spacing:-.02em;
      white-space:nowrap;
    }
    .logo-icon{
      width:38px;
      height:38px;
      border-radius:14px;
      display:inline-flex;
      align-items:center;
      justify-content:center;
      color:#fff;
      background:linear-gradient(135deg, var(--color-primary), var(--color-accent));
      box-shadow:0 12px 28px rgba(37,99,235,.22);
      font-weight:800;
    }
    .logo-text{
      font-size:18px;
      line-height:1.2;
    }
    .nav-link{
      position:relative;
      display:inline-flex;
      align-items:center;
      min-height:42px;
      padding:0 14px;
      border-radius:999px;
      color:#344054;
      font-size:15px;
      font-weight:650;
      transition:background .2s ease,color .2s ease,transform .2s ease;
    }
    .nav-link:hover{
      background:var(--color-soft);
      color:var(--color-primary-dark);
      transform:translateY(-1px);
    }
    .nav-link.active{
      color:var(--color-primary-dark);
      background:rgba(37,99,235,.10);
    }
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      min-height:44px;
      padding:0 20px;
      border-radius:999px;
      border:1px solid transparent;
      font-size:15px;
      font-weight:750;
      line-height:1;
      cursor:pointer;
      transition:transform .2s ease, box-shadow .2s ease, background .2s ease, border-color .2s ease, color .2s ease;
    }
    .btn:hover{
      transform:translateY(-2px);
    }
    .btn-primary{
      color:#fff;
      background:linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
      box-shadow:0 14px 34px rgba(37,99,235,.22);
    }
    .btn-primary:hover{
      box-shadow:0 18px 44px rgba(37,99,235,.28);
      background:linear-gradient(135deg, #1d4ed8, #1e3a8a);
    }
    .btn-secondary{
      color:var(--color-primary-dark);
      background:#fff;
      border-color:rgba(37,99,235,.20);
      box-shadow:0 12px 28px rgba(15,45,90,.06);
    }
    .btn-secondary:hover{
      background:var(--color-soft);
      border-color:rgba(37,99,235,.32);
    }
    .mobile-toggle{
      display:none;
      width:44px;
      height:44px;
      border:1px solid var(--color-border);
      border-radius:15px;
      background:#fff;
      color:var(--color-text);
      align-items:center;
      justify-content:center;
      box-shadow:0 10px 28px rgba(15,45,90,.06);
      cursor:pointer;
    }
    .mobile-menu{
      display:none;
      padding:0 0 16px;
    }
    .mobile-menu-panel{
      display:grid;
      gap:8px;
      padding:14px;
      border:1px solid var(--color-border);
      border-radius:22px;
      background:#fff;
      box-shadow:var(--shadow-soft);
    }
    .breadcrumb{
      display:flex;
      align-items:center;
      gap:8px;
      flex-wrap:wrap;
      color:var(--color-muted);
      font-size:14px;
      margin:28px 0 0;
    }
    .breadcrumb a{
      transition:color .2s ease;
    }
    .breadcrumb a:hover{
      color:var(--color-primary-dark);
    }
    .breadcrumb-current{
      color:var(--color-text);
      font-weight:650;
    }
    .hero{
      position:relative;
      overflow:hidden;
      padding:74px 0 64px;
    }
    .hero:before{
      content:"";
      position:absolute;
      inset:16px auto auto 50%;
      width:760px;
      height:360px;
      transform:translateX(-50%);
      background:
        linear-gradient(90deg, rgba(37,99,235,.07) 1px, transparent 1px),
        linear-gradient(180deg, rgba(37,99,235,.07) 1px, transparent 1px);
      background-size:32px 32px;
      mask-image:radial-gradient(circle, #000 0%, transparent 70%);
      pointer-events:none;
    }
    .hero-inner{
      position:relative;
      text-align:center;
      max-width:920px;
      margin:0 auto;
    }
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:8px 14px;
      border-radius:999px;
      border:1px solid rgba(37,99,235,.14);
      background:rgba(238,246,255,.82);
      color:var(--color-primary-dark);
      font-size:14px;
      font-weight:750;
    }
    h1{
      margin:20px 0 16px;
      font-size:clamp(36px, 5.2vw, 60px);
      line-height:1.12;
      letter-spacing:-.045em;
      font-weight:850;
      color:var(--color-text);
    }
    .hero-lead{
      max-width:760px;
      margin:0 auto;
      color:var(--color-muted);
      font-size:18px;
      line-height:1.85;
    }
    .quick-grid{
      margin:34px auto 0;
      display:grid;
      grid-template-columns:repeat(4, minmax(0, 1fr));
      gap:14px;
      max-width:980px;
    }
    .quick-card{
      padding:18px 16px;
      border:1px solid rgba(221,231,243,.95);
      border-radius:22px;
      background:rgba(255,255,255,.88);
      box-shadow:0 18px 50px rgba(15,45,90,.07);
      transition:transform .2s ease, box-shadow .2s ease, border-color .2s ease;
      text-align:left;
    }
    .quick-card:hover{
      transform:translateY(-3px);
      border-color:rgba(37,99,235,.25);
      box-shadow:var(--shadow-hover);
    }
    .quick-icon{
      width:38px;
      height:38px;
      border-radius:14px;
      display:flex;
      align-items:center;
      justify-content:center;
      background:var(--color-soft);
      color:var(--color-primary-dark);
      font-weight:850;
      margin-bottom:12px;
    }
    .quick-title{
      font-weight:800;
      color:var(--color-text);
      line-height:1.35;
    }
    .quick-desc{
      margin-top:6px;
      color:var(--color-muted);
      font-size:14px;
      line-height:1.65;
    }
    .section{
      padding:72px 0;
    }
    .section-head{
      max-width:760px;
      margin:0 auto 34px;
      text-align:center;
    }
    .section-kicker{
      color:var(--color-primary-dark);
      font-weight:800;
      font-size:14px;
      letter-spacing:.04em;
    }
    h2{
      margin:8px 0 12px;
      font-size:clamp(28px, 3.8vw, 42px);
      line-height:1.18;
      letter-spacing:-.035em;
      font-weight:850;
    }
    .section-desc{
      color:var(--color-muted);
      font-size:17px;
      line-height:1.8;
    }
    .timeline-wrap{
      max-width:980px;
      margin:0 auto;
      position:relative;
    }
    .timeline-wrap:before{
      content:"";
      position:absolute;
      left:31px;
      top:20px;
      bottom:20px;
      width:2px;
      background:linear-gradient(180deg, rgba(37,99,235,.35), rgba(56,189,248,.14));
    }
    .timeline-item{
      position:relative;
      display:grid;
      grid-template-columns:64px 1fr;
      gap:20px;
      margin-bottom:18px;
    }
    .timeline-num{
      position:relative;
      z-index:1;
      width:64px;
      height:64px;
      border-radius:20px;
      display:flex;
      align-items:center;
      justify-content:center;
      color:#fff;
      font-weight:850;
      background:linear-gradient(135deg, var(--color-primary), var(--color-accent));
      box-shadow:0 16px 34px rgba(37,99,235,.20);
    }
    .timeline-card{
      padding:24px;
      border:1px solid var(--color-border);
      border-radius:24px;
      background:#fff;
      box-shadow:var(--shadow-soft);
      transition:transform .2s ease, box-shadow .2s ease, border-color .2s ease;
    }
    .timeline-card:hover{
      transform:translateY(-2px);
      border-color:rgba(37,99,235,.25);
      box-shadow:var(--shadow-hover);
    }
    .timeline-title{
      font-size:21px;
      font-weight:850;
      line-height:1.35;
    }
    .timeline-text{
      margin-top:8px;
      color:var(--color-muted);
      line-height:1.75;
    }
    .chips{
      display:flex;
      flex-wrap:wrap;
      gap:8px;
      margin-top:14px;
    }
    .chip{
      display:inline-flex;
      align-items:center;
      min-height:28px;
      padding:0 10px;
      border-radius:999px;
      background:rgba(238,246,255,.95);
      color:var(--color-primary-dark);
      font-size:13px;
      font-weight:700;
    }
    .panel-grid{
      display:grid;
      grid-template-columns:1.08fr .92fr;
      gap:22px;
      align-items:start;
    }
    .soft-panel{
      border:1px solid var(--color-border);
      border-radius:28px;
      background:rgba(255,255,255,.9);
      box-shadow:var(--shadow-soft);
      padding:28px;
    }
    .check-list{
      display:grid;
      gap:14px;
      margin-top:22px;
    }
    .check-item{
      display:grid;
      grid-template-columns:34px 1fr;
      gap:12px;
      padding:16px;
      border:1px solid rgba(221,231,243,.9);
      border-radius:20px;
      background:linear-gradient(180deg, #fff, #fbfdff);
      transition:transform .2s ease, border-color .2s ease;
    }
    .check-item:hover{
      transform:translateY(-2px);
      border-color:rgba(37,99,235,.24);
    }
    .check-icon{
      width:34px;
      height:34px;
      border-radius:13px;
      display:flex;
      align-items:center;
      justify-content:center;
      background:var(--color-soft);
      color:var(--color-primary-dark);
      font-weight:900;
    }
    .check-title{
      font-weight:820;
      line-height:1.4;
    }
    .check-text{
      margin-top:4px;
      color:var(--color-muted);
      font-size:14px;
      line-height:1.65;
    }
    .notice-card{
      position:relative;
      overflow:hidden;
      border-radius:28px;
      padding:28px;
      color:#fff;
      background:
        radial-gradient(circle at 90% 10%, rgba(56,189,248,.38), transparent 32%),
        linear-gradient(135deg, #2563eb, #1e40af);
      box-shadow:0 22px 60px rgba(37,99,235,.22);
    }
    .notice-card:after{
      content:"";
      position:absolute;
      right:-44px;
      bottom:-62px;
      width:190px;
      height:190px;
      border-radius:999px;
      border:28px solid rgba(255,255,255,.10);
    }
    .notice-card > *{
      position:relative;
      z-index:1;
    }
    .notice-title{
      font-size:24px;
      line-height:1.35;
      font-weight:850;
    }
    .notice-text{
      margin-top:10px;
      color:rgba(255,255,255,.82);
      line-height:1.75;
    }
    .mini-steps{
      display:grid;
      gap:10px;
      margin-top:20px;
    }
    .mini-step{
      display:flex;
      gap:10px;
      align-items:flex-start;
      padding:12px;
      border-radius:16px;
      background:rgba(255,255,255,.12);
      border:1px solid rgba(255,255,255,.14);
    }
    .mini-step b{
      flex:0 0 auto;
      width:24px;
      height:24px;
      border-radius:999px;
      display:flex;
      align-items:center;
      justify-content:center;
      background:rgba(255,255,255,.20);
      font-size:13px;
    }
    .faq-grid{
      display:grid;
      grid-template-columns:repeat(2, minmax(0, 1fr));
      gap:16px;
    }
    .faq-card{
      border:1px solid var(--color-border);
      border-radius:24px;
      background:#fff;
      box-shadow:0 18px 44px rgba(15,45,90,.06);
      overflow:hidden;
      transition:transform .2s ease, box-shadow .2s ease, border-color .2s ease;
    }
    .faq-card:hover{
      transform:translateY(-2px);
      border-color:rgba(37,99,235,.22);
      box-shadow:var(--shadow-hover);
    }
    .faq-question{
      display:flex;
      align-items:flex-start;
      gap:12px;
      padding:22px 22px 12px;
      font-weight:850;
      line-height:1.45;
      font-size:18px;
    }
    .q-mark{
      flex:0 0 auto;
      width:30px;
      height:30px;
      border-radius:999px;
      display:flex;
      align-items:center;
      justify-content:center;
      background:var(--color-soft);
      color:var(--color-primary-dark);
      font-weight:900;
      font-size:14px;
    }
    .faq-answer{
      margin:0 22px 22px 64px;
      padding:14px 16px;
      border-radius:18px;
      background:#f7fbff;
      color:var(--color-muted);
      font-size:15px;
      line-height:1.75;
    }
    .contact-section{
      padding:78px 0 90px;
    }
    .contact-card{
      display:grid;
      grid-template-columns:.95fr 1.05fr;
      gap:24px;
      align-items:stretch;
      border:1px solid var(--color-border);
      border-radius:32px;
      background:linear-gradient(135deg, rgba(238,246,255,.88), rgba(255,255,255,.96));
      box-shadow:var(--shadow-soft);
      padding:24px;
      overflow:hidden;
    }
    .contact-copy{
      padding:24px;
      display:flex;
      flex-direction:column;
      justify-content:center;
    }
    .contact-copy h2{
      margin-top:0;
    }
    .contact-list{
      display:grid;
      gap:12px;
      margin-top:22px;
    }
    .contact-list li{
      list-style:none;
      display:flex;
      gap:10px;
      color:var(--color-muted);
    }
    .contact-list li:before{
      content:"";
      width:9px;
      height:9px;
      border-radius:999px;
      background:var(--color-primary);
      margin-top:10px;
      flex:0 0 auto;
      box-shadow:0 0 0 5px rgba(37,99,235,.10);
    }
    .form-card{
      padding:24px;
      border-radius:26px;
      background:#fff;
      border:1px solid rgba(221,231,243,.95);
      box-shadow:0 18px 48px rgba(15,45,90,.08);
    }
    .form-grid{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:14px;
    }
    .form-field{
      display:grid;
      gap:7px;
    }
    .form-field.full{
      grid-column:1 / -1;
    }
    label{
      font-size:14px;
      font-weight:750;
      color:#344054;
    }
    input,select,textarea{
      width:100%;
      border:1px solid var(--color-border);
      border-radius:16px;
      background:#fff;
      color:var(--color-text);
      padding:12px 14px;
      min-height:46px;
      outline:none;
      transition:border-color .2s ease, box-shadow .2s ease, background .2s ease;
    }
    textarea{
      min-height:112px;
      resize:vertical;
    }
    input:focus,select:focus,textarea:focus{
      border-color:rgba(37,99,235,.48);
      box-shadow:0 0 0 4px rgba(56,189,248,.16);
      background:#fcfeff;
    }
    .form-tip{
      margin-top:12px;
      color:var(--color-muted);
      font-size:13px;
      line-height:1.6;
    }
    .site-footer{
      border-top:1px solid var(--color-border);
      background:linear-gradient(180deg, #fff, #f1f7ff);
      padding:54px 0 26px;
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.25fr .8fr .95fr;
      gap:34px;
      align-items:start;
    }
    .footer-title{
      margin-top:18px;
      margin-bottom:10px;
      font-size:16px;
      font-weight:850;
      color:var(--color-text);
    }
    .footer-text,.footer-note{
      color:var(--color-muted);
      font-size:14px;
      line-height:1.75;
      max-width:360px;
    }
    .footer-links{
      display:grid;
      gap:10px;
    }
    .footer-link{
      color:var(--color-muted);
      font-size:14px;
      transition:color .2s ease, transform .2s ease;
    }
    .footer-link:hover{
      color:var(--color-primary-dark);
      transform:translateX(2px);
    }
    .footer-bottom{
      margin-top:34px;
      padding-top:22px;
      border-top:1px solid rgba(221,231,243,.9);
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:16px;
      flex-wrap:wrap;
    }
    .copyright{
      color:var(--color-muted);
      font-size:13px;
    }
    @media (max-width:1024px){
      .desktop-nav{display:none;}
      .nav-shell{
        grid-template-columns:1fr auto;
      }
      .logo-mark{
        justify-content:flex-start;
      }
      .mobile-toggle{
        display:inline-flex;
        justify-self:end;
      }
      .mobile-menu.open{
        display:block;
      }
      .quick-grid{
        grid-template-columns:repeat(2, minmax(0, 1fr));
      }
      .panel-grid,.contact-card{
        grid-template-columns:1fr;
      }
      .footer-grid{
        grid-template-columns:1fr 1fr;
      }
    }
    @media (max-width:768px){
      .site-container{
        width:min(100% - 32px, var(--container));
      }
      .nav-shell{
        min-height:68px;
      }
      .logo-icon{
        width:34px;
        height:34px;
        border-radius:12px;
      }
      .logo-text{
        font-size:16px;
      }
      .hero{
        padding:48px 0 48px;
      }
      .quick-grid,.faq-grid,.form-grid{
        grid-template-columns:1fr;
      }
      .section{
        padding:54px 0;
      }
      .timeline-wrap:before{
        left:23px;
      }
      .timeline-item{
        grid-template-columns:48px 1fr;
        gap:14px;
      }
      .timeline-num{
        width:48px;
        height:48px;
        border-radius:16px;
      }
      .timeline-card,.soft-panel,.form-card,.contact-copy{
        padding:20px;
      }
      .faq-answer{
        margin-left:22px;
      }
      .footer-grid{
        grid-template-columns:1fr;
        gap:24px;
      }
      .footer-bottom{
        align-items:flex-start;
        flex-direction:column;
      }
    }
    @media (max-width:520px){
      h1{
        font-size:34px;
      }
      .quick-card,.timeline-card,.soft-panel,.notice-card,.faq-card{
        border-radius:20px;
      }
      .contact-card{
        padding:14px;
        border-radius:24px;
      }
      .btn{
        width:100%;
      }
      .hero-lead,.section-desc{
        font-size:16px;
      }
    }