:root {
      --bg: #fbf7ef;
      --paper: #ffffff;
      --paper-soft: #fffaf2;
      --text: #24211d;
      --muted: #6f675d;
      --line: #eadfce;
      --accent: #b86b32;
      --accent-dark: #8f4f22;
      --green: #3d7555;
      --shadow: 0 18px 44px rgba(93, 68, 41, 0.12);
      --radius: 22px;
      --container: 1120px;
    }

    * {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      margin: 0;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;
      color: var(--text);
      background:
        radial-gradient(circle at 12% 8%, rgba(255, 222, 176, 0.75), transparent 28%),
        radial-gradient(circle at 88% 16%, rgba(199, 226, 207, 0.75), transparent 30%),
        linear-gradient(180deg, #fff8ee 0%, var(--bg) 42%, #f7efe2 100%);
      line-height: 1.7;
      overflow-x: hidden;
    }

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

    .container {
      width: min(100% - 32px, var(--container));
      margin: 0 auto;
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 50;
      background: rgba(255, 250, 242, 0.88);
      backdrop-filter: blur(14px);
      border-bottom: 1px solid rgba(234, 223, 206, 0.8);
    }

    .nav {
      min-height: 68px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 18px;
    }

    .brand {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      font-weight: 800;
      letter-spacing: 0.02em;
      white-space: nowrap;
    }

    .brand-mark {
      width: 34px;
      height: 34px;
      border-radius: 12px;
      background: linear-gradient(135deg, var(--accent), #e9a66d);
      display: grid;
      place-items: center;
      color: #fff;
      font-size: 18px;
      box-shadow: 0 8px 20px rgba(184, 107, 50, 0.25);
    }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 22px;
      color: #463f37;
      font-size: 15px;
    }

    .nav-links a {
      padding: 8px 2px;
      position: relative;
    }

    .nav-links a::after {
      content: "";
      position: absolute;
      left: 0;
      right: 0;
      bottom: 3px;
      height: 2px;
      border-radius: 99px;
      background: var(--accent);
      transform: scaleX(0);
      transform-origin: center;
      transition: transform 0.2s ease;
    }

    .nav-links a:hover::after {
      transform: scaleX(1);
    }

    .menu-btn {
      display: none;
      width: 44px;
      height: 44px;
      border: 1px solid var(--line);
      border-radius: 14px;
      background: var(--paper);
      color: var(--text);
      align-items: center;
      justify-content: center;
      cursor: pointer;
    }

    .menu-lines {
      width: 18px;
      height: 14px;
      position: relative;
    }

    .menu-lines span {
      position: absolute;
      left: 0;
      width: 18px;
      height: 2px;
      background: #3d352d;
      border-radius: 2px;
      transition: transform 0.2s ease, top 0.2s ease, opacity 0.2s ease;
    }

    .menu-lines span:nth-child(1) { top: 0; }
    .menu-lines span:nth-child(2) { top: 6px; }
    .menu-lines span:nth-child(3) { top: 12px; }

    .menu-btn.is-open .menu-lines span:nth-child(1) {
      top: 6px;
      transform: rotate(45deg);
    }

    .menu-btn.is-open .menu-lines span:nth-child(2) {
      opacity: 0;
    }

    .menu-btn.is-open .menu-lines span:nth-child(3) {
      top: 6px;
      transform: rotate(-45deg);
    }

    main {
      position: relative;
    }

    .hero {
      padding: 72px 0 48px;
    }

    .hero-grid {
      display: grid;
      grid-template-columns: minmax(0, 1.12fr) minmax(280px, 0.88fr);
      gap: 34px;
      align-items: center;
    }

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 7px 12px;
      border: 1px solid rgba(184, 107, 50, 0.22);
      border-radius: 999px;
      background: rgba(255, 255, 255, 0.72);
      color: var(--accent-dark);
      font-size: 14px;
      font-weight: 700;
      margin-bottom: 18px;
    }

    .eyebrow::before {
      content: "";
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: var(--green);
      box-shadow: 0 0 0 5px rgba(61, 117, 85, 0.12);
    }

    h1 {
      margin: 0;
      font-size: clamp(34px, 6vw, 62px);
      line-height: 1.08;
      letter-spacing: -0.045em;
      color: #201b16;
    }

    .hero-copy {
      margin: 22px 0 0;
      max-width: 720px;
      color: var(--muted);
      font-size: clamp(17px, 2.2vw, 20px);
    }

    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-top: 30px;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 46px;
      padding: 12px 18px;
      border-radius: 999px;
      font-weight: 800;
      transition: transform 0.18s ease, box-shadow 0.18s ease, background 0.18s ease;
    }

    .btn-primary {
      background: var(--text);
      color: #fff;
      box-shadow: 0 14px 28px rgba(36, 33, 29, 0.18);
    }

    .btn-secondary {
      background: rgba(255, 255, 255, 0.82);
      color: var(--text);
      border: 1px solid var(--line);
    }

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

    .btn-primary:hover {
      background: #3a3129;
      box-shadow: 0 18px 36px rgba(36, 33, 29, 0.22);
    }

    .hero-panel {
      background: rgba(255, 255, 255, 0.82);
      border: 1px solid rgba(234, 223, 206, 0.9);
      border-radius: 30px;
      padding: 22px;
      box-shadow: var(--shadow);
      position: relative;
      overflow: hidden;
    }

    .hero-panel::before {
      content: "";
      position: absolute;
      width: 180px;
      height: 180px;
      right: -70px;
      top: -70px;
      border-radius: 50%;
      background: rgba(184, 107, 50, 0.13);
    }

    .panel-title {
      margin: 0 0 16px;
      font-size: 20px;
      line-height: 1.35;
      position: relative;
    }

    .quick-list {
      display: grid;
      gap: 12px;
      position: relative;
    }

    .quick-item {
      display: grid;
      grid-template-columns: 34px 1fr;
      gap: 12px;
      align-items: start;
      padding: 14px;
      border-radius: 18px;
      background: var(--paper-soft);
      border: 1px solid rgba(234, 223, 206, 0.78);
    }

    .quick-icon {
      width: 34px;
      height: 34px;
      border-radius: 12px;
      display: grid;
      place-items: center;
      background: #f1dfc8;
      color: var(--accent-dark);
      font-weight: 900;
    }

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

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

    .section {
      padding: 46px 0;
    }

    .section-head {
      display: grid;
      grid-template-columns: minmax(0, 0.72fr) minmax(260px, 0.28fr);
      gap: 24px;
      align-items: end;
      margin-bottom: 22px;
    }

    h2 {
      margin: 0;
      font-size: clamp(26px, 4vw, 42px);
      line-height: 1.16;
      letter-spacing: -0.03em;
    }

    .section-note {
      margin: 0;
      color: var(--muted);
      font-size: 16px;
    }

    .criteria {
      display: grid;
      grid-template-columns: repeat(3, minmax(0, 1fr));
      gap: 16px;
    }

    .criterion-card {
      background: rgba(255, 255, 255, 0.78);
      border: 1px solid rgba(234, 223, 206, 0.86);
      border-radius: var(--radius);
      padding: 22px;
      transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
    }

    .criterion-card:hover {
      transform: translateY(-4px);
      box-shadow: 0 18px 34px rgba(93, 68, 41, 0.11);
      border-color: rgba(184, 107, 50, 0.32);
    }

    .criterion-card h3 {
      margin: 0 0 10px;
      font-size: 19px;
    }

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

    .flow-wrap {
      display: grid;
      grid-template-columns: minmax(0, 0.42fr) minmax(0, 0.58fr);
      gap: 18px;
      align-items: stretch;
    }

    .soft-box {
      background: linear-gradient(145deg, rgba(255, 255, 255, 0.9), rgba(255, 250, 242, 0.9));
      border: 1px solid rgba(234, 223, 206, 0.9);
      border-radius: 28px;
      padding: 26px;
      box-shadow: 0 12px 30px rgba(93, 68, 41, 0.08);
    }

    .soft-box h3 {
      margin: 0 0 12px;
      font-size: 22px;
    }

    .soft-box p {
      margin: 0;
      color: var(--muted);
    }

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

    .flow-step {
      display: grid;
      grid-template-columns: 44px 1fr;
      gap: 14px;
      align-items: start;
      padding: 18px;
      border-radius: 22px;
      background: rgba(255, 255, 255, 0.82);
      border: 1px solid rgba(234, 223, 206, 0.86);
    }

    .step-num {
      width: 44px;
      height: 44px;
      border-radius: 16px;
      display: grid;
      place-items: center;
      background: #243a2f;
      color: #fff;
      font-weight: 900;
      font-size: 14px;
    }

    .flow-step h3 {
      margin: 0 0 4px;
      font-size: 18px;
    }

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

    .issue-strip {
      display: grid;
      grid-template-columns: repeat(4, minmax(0, 1fr));
      gap: 12px;
    }

    .issue {
      padding: 18px;
      border-radius: 20px;
      background: rgba(255, 250, 242, 0.86);
      border: 1px solid rgba(234, 223, 206, 0.9);
    }

    .issue h3 {
      margin: 0 0 8px;
      font-size: 17px;
    }

    .issue p {
      margin: 0;
      color: var(--muted);
      font-size: 14px;
    }

    .notice {
      margin-top: 14px;
      padding: 16px 18px;
      border-radius: 20px;
      background: rgba(61, 117, 85, 0.09);
      border: 1px solid rgba(61, 117, 85, 0.2);
      color: #355846;
      font-size: 15px;
    }

    .check-panel {
      display: grid;
      grid-template-columns: minmax(0, 0.95fr) minmax(280px, 1.05fr);
      gap: 18px;
      align-items: start;
      background: rgba(255, 255, 255, 0.76);
      border: 1px solid rgba(234, 223, 206, 0.92);
      border-radius: 32px;
      padding: 24px;
      box-shadow: var(--shadow);
    }

    .check-intro h2 {
      margin-bottom: 14px;
    }

    .check-intro p {
      margin: 0;
      color: var(--muted);
    }

    .check-list {
      display: grid;
      gap: 10px;
    }

    .check-item {
      display: flex;
      gap: 10px;
      align-items: flex-start;
      padding: 12px 0;
      border-bottom: 1px dashed rgba(111, 103, 93, 0.25);
      color: #3f382f;
    }

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

    .tick {
      flex: 0 0 auto;
      width: 24px;
      height: 24px;
      border-radius: 50%;
      background: #e8f1e9;
      color: var(--green);
      display: grid;
      place-items: center;
      font-weight: 900;
      margin-top: 2px;
    }

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

    details {
      background: rgba(255, 255, 255, 0.78);
      border: 1px solid rgba(234, 223, 206, 0.9);
      border-radius: 20px;
      padding: 0;
      overflow: hidden;
    }

    summary {
      cursor: pointer;
      list-style: none;
      padding: 18px 20px;
      font-weight: 800;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      min-height: 58px;
    }

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

    summary::after {
      content: "+";
      width: 28px;
      height: 28px;
      border-radius: 50%;
      background: #f3e6d4;
      color: var(--accent-dark);
      display: grid;
      place-items: center;
      flex: 0 0 auto;
      transition: transform 0.2s ease;
    }

    details[open] summary::after {
      transform: rotate(45deg);
    }

    details p {
      margin: 0;
      padding: 0 20px 18px;
      color: var(--muted);
      font-size: 15px;
    }

    .final-card {
      display: grid;
      grid-template-columns: 1fr auto;
      gap: 18px;
      align-items: center;
      padding: 26px;
      border-radius: 30px;
      background: #2d241e;
      color: #fff;
      box-shadow: 0 18px 42px rgba(45, 36, 30, 0.2);
    }

    .final-card h2 {
      color: #fff;
      font-size: clamp(24px, 4vw, 36px);
    }

    .final-card p {
      margin: 10px 0 0;
      color: #eadfce;
      max-width: 720px;
    }

    .final-card .btn {
      background: #fff4e2;
      color: #2d241e;
      white-space: nowrap;
    }

    .site-footer {
      margin-top: 18px;
      background: #fff8ee;
      border-top: 1px solid var(--line);
      color: #433a31;
    }

    .footer-inner {
      min-height: 84px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 18px;
      padding: 20px 0;
      font-size: 14px;
    }

    .footer-links {
      display: flex;
      gap: 16px;
      flex-wrap: wrap;
    }

    .footer-links a {
      color: #574d43;
    }

    .reveal {
      opacity: 0;
      transform: translateY(18px);
      transition: opacity 0.6s ease, transform 0.6s ease;
    }

    .reveal.is-visible {
      opacity: 1;
      transform: translateY(0);
    }

    @media (prefers-reduced-motion: reduce) {
      html {
        scroll-behavior: auto;
      }

      .reveal,
      .btn,
      .criterion-card,
      .nav-links a::after,
      .menu-lines span,
      summary::after {
        transition: none;
      }
    }

    @media (max-width: 900px) {
      .hero {
        padding: 48px 0 34px;
      }

      .hero-grid,
      .section-head,
      .flow-wrap,
      .check-panel,
      .final-card {
        grid-template-columns: 1fr;
      }

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

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

      .final-card .btn {
        justify-self: start;
      }
    }

    @media (max-width: 720px) {
      .container {
        width: min(100% - 24px, var(--container));
      }

      .nav {
        min-height: 62px;
      }

      .menu-btn {
        display: inline-flex;
      }

      .nav-links {
        position: absolute;
        left: 12px;
        right: 12px;
        top: 68px;
        display: none;
        flex-direction: column;
        align-items: stretch;
        gap: 4px;
        padding: 12px;
        border: 1px solid var(--line);
        border-radius: 20px;
        background: rgba(255, 250, 242, 0.98);
        box-shadow: 0 16px 34px rgba(93, 68, 41, 0.12);
      }

      .nav-links.is-open {
        display: flex;
      }

      .nav-links a {
        padding: 12px 14px;
        border-radius: 14px;
      }

      .nav-links a:hover {
        background: #f5eadb;
      }

      .nav-links a::after {
        display: none;
      }

      .hero-actions {
        flex-direction: column;
      }

      .btn {
        width: 100%;
      }

      .criteria,
      .issue-strip {
        grid-template-columns: 1fr;
      }

      .section {
        padding: 34px 0;
      }

      .hero-panel,
      .soft-box,
      .check-panel,
      .final-card {
        border-radius: 24px;
      }

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

    @media (max-width: 420px) {
      .quick-item,
      .flow-step {
        grid-template-columns: 1fr;
      }

      .quick-icon,
      .step-num {
        width: 38px;
        height: 38px;
      }

      h1 {
        font-size: 34px;
      }
    }