:root {
      --bg: #fbf7ef;
      --bg-soft: #fffdf8;
      --card: rgba(255, 255, 255, 0.82);
      --text: #25221d;
      --muted: #6f665b;
      --line: #eadfce;
      --brand: #9a5b2f;
      --brand-dark: #6f3e20;
      --brand-soft: #f2dfc8;
      --green: #2f6b55;
      --shadow: 0 18px 45px rgba(84, 57, 31, 0.12);
      --radius: 24px;
      --container: 1120px;
    }

    * {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      margin: 0;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
      color: var(--text);
      background:
        radial-gradient(circle at 12% 6%, rgba(242, 210, 170, 0.75), transparent 34%),
        radial-gradient(circle at 88% 12%, rgba(193, 219, 201, 0.55), transparent 32%),
        linear-gradient(180deg, #fbf3e7 0%, var(--bg) 42%, #fffaf0 100%);
      line-height: 1.72;
    }

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

    .container {
      width: min(100% - 36px, var(--container));
      margin: 0 auto;
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 20;
      background: rgba(251, 247, 239, 0.9);
      backdrop-filter: blur(16px);
      border-bottom: 1px solid rgba(234, 223, 206, 0.75);
    }

    .nav {
      min-height: 72px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 20px;
    }

    .brand {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      font-weight: 800;
      letter-spacing: -0.02em;
      color: #2c241d;
    }

    .brand-mark {
      width: 34px;
      height: 34px;
      border-radius: 12px;
      background: linear-gradient(135deg, var(--brand), #d59d62);
      box-shadow: 0 10px 24px rgba(154, 91, 47, 0.22);
      position: relative;
      flex: 0 0 auto;
    }

    .brand-mark::after {
      content: "";
      position: absolute;
      width: 12px;
      height: 6px;
      border-radius: 6px;
      background: #fff8ed;
      left: 11px;
      top: 14px;
    }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 22px;
      font-size: 14px;
      color: #53483d;
    }

    .nav-links a {
      transition: color 0.2s ease;
    }

    .nav-links a:hover {
      color: var(--brand-dark);
    }

    .nav-action {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 40px;
      padding: 0 16px;
      border-radius: 999px;
      background: #2f251f;
      color: #fff9ef;
      font-weight: 700;
      box-shadow: 0 10px 24px rgba(47, 37, 31, 0.15);
      transition: transform 0.2s ease, box-shadow 0.2s ease;
    }

    .nav-action:hover {
      transform: translateY(-2px);
      box-shadow: 0 14px 30px rgba(47, 37, 31, 0.2);
    }

    .menu-toggle {
      display: none;
      border: 1px solid var(--line);
      background: #fffaf1;
      border-radius: 14px;
      padding: 9px 11px;
      color: var(--text);
      cursor: pointer;
    }

    .menu-toggle span {
      display: block;
      width: 20px;
      height: 2px;
      margin: 4px 0;
      background: #3f3329;
      border-radius: 99px;
    }

    main {
      overflow: hidden;
    }

    .hero {
      padding: 70px 0 44px;
    }

    .hero-grid {
      display: grid;
      grid-template-columns: minmax(0, 1.06fr) minmax(300px, 0.74fr);
      gap: 34px;
      align-items: start;
    }

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 7px 12px;
      border-radius: 999px;
      background: rgba(255, 255, 255, 0.72);
      border: 1px solid rgba(234, 223, 206, 0.95);
      color: var(--brand-dark);
      font-size: 13px;
      font-weight: 700;
      box-shadow: 0 8px 22px rgba(84, 57, 31, 0.06);
    }

    .eyebrow::before {
      content: "";
      width: 8px;
      height: 8px;
      border-radius: 99px;
      background: var(--green);
      box-shadow: 0 0 0 5px rgba(47, 107, 85, 0.12);
    }

    h1 {
      margin: 22px 0 18px;
      font-size: clamp(36px, 7vw, 68px);
      line-height: 1.06;
      letter-spacing: -0.06em;
      color: #211b16;
    }

    .hero-text {
      max-width: 690px;
      margin: 0;
      color: var(--muted);
      font-size: clamp(16px, 2.2vw, 19px);
    }

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

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      min-height: 48px;
      padding: 0 20px;
      border-radius: 16px;
      font-weight: 800;
      transition: transform 0.18s ease, box-shadow 0.18s ease, background 0.18s ease;
    }

    .btn-primary {
      background: var(--brand-dark);
      color: #fff8ef;
      box-shadow: 0 16px 32px rgba(111, 62, 32, 0.2);
    }

    .btn-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 20px 38px rgba(111, 62, 32, 0.25);
    }

    .btn-secondary {
      background: rgba(255, 255, 255, 0.74);
      color: #352b23;
      border: 1px solid var(--line);
    }

    .btn-secondary:hover {
      transform: translateY(-2px);
      background: #fffdf8;
    }

    .quick-panel {
      background: var(--card);
      border: 1px solid rgba(234, 223, 206, 0.9);
      border-radius: var(--radius);
      box-shadow: var(--shadow);
      padding: 24px;
      position: relative;
      overflow: hidden;
      animation: floatIn 0.8s ease both;
    }

    .quick-panel::before {
      content: "";
      position: absolute;
      inset: -80px -90px auto auto;
      width: 180px;
      height: 180px;
      border-radius: 50%;
      background: rgba(242, 223, 200, 0.74);
    }

    .panel-title {
      position: relative;
      margin: 0 0 14px;
      font-size: 22px;
      letter-spacing: -0.03em;
    }

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

    .check-list li {
      display: grid;
      grid-template-columns: 28px 1fr;
      gap: 10px;
      align-items: start;
      color: #44392f;
    }

    .check-list li::before {
      content: "✓";
      width: 28px;
      height: 28px;
      border-radius: 10px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      background: #e8f0e7;
      color: var(--green);
      font-weight: 900;
      line-height: 1;
    }

    .section {
      padding: 42px 0;
    }

    .section-head {
      display: flex;
      align-items: end;
      justify-content: space-between;
      gap: 24px;
      margin-bottom: 22px;
    }

    .section h2 {
      margin: 0;
      font-size: clamp(26px, 4vw, 42px);
      line-height: 1.18;
      letter-spacing: -0.04em;
      color: #261f19;
    }

    .section-intro {
      max-width: 520px;
      margin: 0;
      color: var(--muted);
    }

    .signal-grid {
      display: grid;
      grid-template-columns: repeat(4, minmax(0, 1fr));
      gap: 14px;
    }

    .signal-card {
      background: rgba(255, 253, 248, 0.86);
      border: 1px solid rgba(234, 223, 206, 0.9);
      border-radius: 22px;
      padding: 20px;
      transition: transform 0.22s ease, box-shadow 0.22s ease, border-color 0.22s ease;
    }

    .signal-card:hover {
      transform: translateY(-4px);
      box-shadow: 0 18px 36px rgba(84, 57, 31, 0.11);
      border-color: #dfc8ad;
    }

    .signal-card strong {
      display: block;
      margin-bottom: 8px;
      color: #31271f;
      font-size: 17px;
    }

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

    .split {
      display: grid;
      grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
      gap: 22px;
      align-items: start;
    }

    .note-card {
      background: #fffdf8;
      border: 1px solid var(--line);
      border-radius: var(--radius);
      padding: 26px;
      box-shadow: 0 16px 40px rgba(84, 57, 31, 0.08);
    }

    .note-card h3 {
      margin: 0 0 12px;
      font-size: 22px;
      letter-spacing: -0.03em;
    }

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

    .steps {
      display: grid;
      gap: 12px;
      counter-reset: step;
    }

    .step {
      counter-increment: step;
      display: grid;
      grid-template-columns: 44px 1fr;
      gap: 14px;
      align-items: start;
      background: rgba(255, 255, 255, 0.75);
      border: 1px solid rgba(234, 223, 206, 0.9);
      border-radius: 20px;
      padding: 18px;
    }

    .step::before {
      content: counter(step);
      width: 44px;
      height: 44px;
      border-radius: 15px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      background: var(--brand-soft);
      color: var(--brand-dark);
      font-weight: 900;
    }

    .step h3 {
      margin: 0 0 4px;
      font-size: 17px;
    }

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

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

    .compare-card {
      border-radius: 24px;
      padding: 22px;
      background: linear-gradient(180deg, rgba(255, 255, 255, 0.88), rgba(255, 249, 239, 0.88));
      border: 1px solid rgba(234, 223, 206, 0.9);
    }

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

    .compare-card ul {
      margin: 0;
      padding-left: 19px;
      color: var(--muted);
    }

    .compare-card li + li {
      margin-top: 8px;
    }

    .care-band {
      display: grid;
      grid-template-columns: 1fr auto;
      gap: 24px;
      align-items: center;
      padding: 28px;
      border-radius: 28px;
      background:
        linear-gradient(135deg, rgba(47, 107, 85, 0.1), rgba(154, 91, 47, 0.11)),
        rgba(255, 253, 248, 0.9);
      border: 1px solid rgba(234, 223, 206, 0.95);
      box-shadow: var(--shadow);
    }

    .care-band h2 {
      margin-bottom: 10px;
    }

    .care-band p {
      margin: 0;
      color: var(--muted);
    }

    .mini-list {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      justify-content: flex-end;
      min-width: 280px;
    }

    .mini-list span {
      display: inline-flex;
      align-items: center;
      min-height: 38px;
      padding: 0 13px;
      border-radius: 999px;
      background: #fffaf2;
      border: 1px solid var(--line);
      color: #4a3f35;
      font-size: 14px;
      font-weight: 700;
    }

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

    details {
      background: rgba(255, 253, 248, 0.84);
      border: 1px solid rgba(234, 223, 206, 0.95);
      border-radius: 18px;
      padding: 18px 20px;
      transition: background 0.2s ease, box-shadow 0.2s ease;
    }

    details[open] {
      background: #fffdf8;
      box-shadow: 0 14px 30px rgba(84, 57, 31, 0.08);
    }

    summary {
      cursor: pointer;
      font-weight: 800;
      color: #2f261f;
    }

    details p {
      margin: 12px 0 0;
      color: var(--muted);
    }

    .site-footer {
      margin-top: 28px;
      background: #2e251e;
      color: #fff6e8;
      border-top: 1px solid #4b3a2d;
    }

    .footer-inner {
      display: flex;
      justify-content: space-between;
      gap: 22px;
      align-items: center;
      padding: 26px 0;
    }

    .footer-inner p {
      margin: 0;
      color: #ead9c1;
      font-size: 14px;
    }

    .footer-links {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      font-size: 14px;
    }

    .footer-links a {
      color: #fff4e2;
    }

    .footer-links a:hover {
      color: #f3c892;
    }

    .reveal {
      opacity: 0;
      transform: translateY(16px);
      transition: opacity 0.55s ease, transform 0.55s ease;
    }

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

    @keyframes floatIn {
      from {
        opacity: 0;
        transform: translateY(18px) rotate(-1deg);
      }
      to {
        opacity: 1;
        transform: translateY(0) rotate(0deg);
      }
    }

    @media (max-width: 900px) {
      .hero-grid,
      .split,
      .care-band {
        grid-template-columns: 1fr;
      }

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

      .section-head {
        display: block;
      }

      .section-intro {
        margin-top: 10px;
      }

      .mini-list {
        justify-content: flex-start;
        min-width: 0;
      }
    }

    @media (max-width: 720px) {
      .container {
        width: min(100% - 28px, var(--container));
      }

      .nav {
        min-height: 64px;
      }

      .menu-toggle {
        display: inline-block;
      }

      .nav-links {
        position: absolute;
        left: 14px;
        right: 14px;
        top: 64px;
        display: none;
        flex-direction: column;
        align-items: stretch;
        gap: 0;
        padding: 10px;
        background: #fffdf8;
        border: 1px solid var(--line);
        border-radius: 18px;
        box-shadow: var(--shadow);
      }

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

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

      .nav-links a:hover {
        background: #fbf1e2;
      }

      .nav-action {
        margin-top: 6px;
      }

      .hero {
        padding: 46px 0 26px;
      }

      .hero-actions {
        align-items: stretch;
      }

      .btn {
        width: 100%;
      }

      .signal-grid,
      .compare {
        grid-template-columns: 1fr;
      }

      .quick-panel,
      .note-card,
      .care-band {
        padding: 20px;
      }

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

    @media (prefers-reduced-motion: reduce) {
      *,
      *::before,
      *::after {
        scroll-behavior: auto !important;
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
      }

      .reveal {
        opacity: 1;
        transform: none;
      }
    }