:root {
      --bg: #fbfaf7;
      --panel: #ffffff;
      --panel-soft: #f4efe7;
      --text: #222326;
      --muted: #666a73;
      --line: #e8dfd2;
      --brand: #0c7a61;
      --brand-dark: #075946;
      --warm: #b77935;
      --shadow: 0 18px 48px rgba(82, 66, 42, 0.10);
      --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(12, 122, 97, 0.10), transparent 28%),
        radial-gradient(circle at 92% 22%, rgba(183, 121, 53, 0.12), transparent 26%),
        linear-gradient(180deg, #fffdf8 0%, var(--bg) 42%, #f7f2ea 100%);
      line-height: 1.7;
    }

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

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

    .site-header {
      position: sticky;
      top: 0;
      z-index: 20;
      background: rgba(251, 250, 247, 0.88);
      backdrop-filter: blur(14px);
      border-bottom: 1px solid rgba(232, 223, 210, 0.78);
    }

    .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;
      color: #18332d;
      white-space: nowrap;
    }

    .brand-mark {
      width: 32px;
      height: 32px;
      border-radius: 12px;
      background: linear-gradient(135deg, var(--brand), #58b49d);
      box-shadow: 0 10px 20px rgba(12, 122, 97, 0.22);
    }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 22px;
      color: #39423f;
      font-size: 14px;
    }

    .nav-links a {
      padding: 8px 0;
      border-bottom: 2px solid transparent;
      transition: color 0.2s ease, border-color 0.2s ease;
    }

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

    .menu-toggle {
      display: none;
      width: 42px;
      height: 42px;
      border: 1px solid var(--line);
      border-radius: 14px;
      background: #fffaf2;
      color: var(--text);
      cursor: pointer;
    }

    .hero {
      padding: 72px 0 42px;
    }

    .hero-grid {
      display: grid;
      grid-template-columns: minmax(0, 1.08fr) minmax(280px, 0.72fr);
      gap: 34px;
      align-items: stretch;
    }

    .hero-copy {
      padding: 42px;
      border: 1px solid rgba(232, 223, 210, 0.92);
      border-radius: 32px;
      background: rgba(255, 255, 255, 0.74);
      box-shadow: var(--shadow);
      position: relative;
      overflow: hidden;
    }

    .hero-copy::after {
      content: "";
      position: absolute;
      right: -80px;
      bottom: -90px;
      width: 220px;
      height: 220px;
      border-radius: 999px;
      background: rgba(12, 122, 97, 0.08);
      pointer-events: none;
    }

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 6px 12px;
      border: 1px solid rgba(12, 122, 97, 0.18);
      border-radius: 999px;
      background: #eef8f4;
      color: var(--brand-dark);
      font-size: 13px;
      font-weight: 700;
      margin-bottom: 18px;
    }

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

    h1 {
      margin: 0;
      max-width: 780px;
      font-size: clamp(34px, 6vw, 58px);
      line-height: 1.08;
      letter-spacing: -0.055em;
      color: #18221f;
    }

    .lead {
      margin: 22px 0 0;
      max-width: 720px;
      font-size: 17px;
      color: #555b61;
    }

    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-top: 30px;
      position: relative;
      z-index: 1;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 46px;
      padding: 0 18px;
      border-radius: 999px;
      font-weight: 750;
      font-size: 14px;
      transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
    }

    .btn-primary {
      color: #ffffff;
      background: var(--brand);
      box-shadow: 0 12px 24px rgba(12, 122, 97, 0.20);
    }

    .btn-primary:hover {
      transform: translateY(-2px);
      background: var(--brand-dark);
      box-shadow: 0 16px 28px rgba(12, 122, 97, 0.24);
    }

    .btn-ghost {
      color: var(--brand-dark);
      background: #f3fbf8;
      border: 1px solid rgba(12, 122, 97, 0.18);
    }

    .btn-ghost:hover {
      transform: translateY(-2px);
      background: #e8f6f1;
    }

    .price-note {
      display: grid;
      gap: 14px;
      padding: 28px;
      border-radius: 32px;
      background: #1f3d35;
      color: #f7fff9;
      box-shadow: 0 20px 42px rgba(31, 61, 53, 0.18);
    }

    .price-note h2 {
      margin: 0;
      font-size: 22px;
      line-height: 1.35;
      color: #ffffff;
    }

    .price-note p {
      margin: 0;
      color: #dcebe6;
      font-size: 14px;
    }

    .mini-list {
      display: grid;
      gap: 10px;
      margin: 8px 0 0;
      padding: 0;
      list-style: none;
    }

    .mini-list li {
      display: flex;
      gap: 10px;
      align-items: flex-start;
      padding: 12px;
      border-radius: 16px;
      background: rgba(255, 255, 255, 0.10);
      color: #f4fffb;
      font-size: 14px;
    }

    .mini-list li::before {
      content: "";
      flex: 0 0 auto;
      width: 8px;
      height: 8px;
      margin-top: 8px;
      border-radius: 999px;
      background: #86dec8;
    }

    section {
      padding: 42px 0;
    }

    .section-head {
      display: grid;
      gap: 10px;
      max-width: 760px;
      margin-bottom: 22px;
    }

    .section-head h2 {
      margin: 0;
      font-size: clamp(26px, 4vw, 38px);
      line-height: 1.18;
      letter-spacing: -0.035em;
      color: #1f2724;
    }

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

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

    .price-card {
      padding: 24px;
      border: 1px solid var(--line);
      border-radius: var(--radius);
      background: rgba(255, 255, 255, 0.82);
      box-shadow: 0 14px 30px rgba(96, 74, 42, 0.07);
      transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
    }

    .price-card:hover {
      transform: translateY(-4px);
      border-color: rgba(12, 122, 97, 0.24);
      box-shadow: 0 20px 38px rgba(96, 74, 42, 0.12);
    }

    .price-card h3 {
      margin: 0 0 12px;
      font-size: 18px;
      color: #1f2724;
    }

    .price-range {
      margin: 0 0 14px;
      font-size: 28px;
      font-weight: 850;
      letter-spacing: -0.03em;
      color: var(--brand-dark);
    }

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

    .plain-box {
      margin-top: 16px;
      padding: 18px 20px;
      border-radius: 18px;
      background: #fff8ee;
      border: 1px solid #ead8bd;
      color: #5c4730;
      font-size: 14px;
    }

    .factor-grid {
      display: grid;
      grid-template-columns: 0.82fr 1.18fr;
      gap: 18px;
      align-items: start;
    }

    .factor-main {
      padding: 28px;
      border-radius: 28px;
      background: var(--panel-soft);
      border: 1px solid var(--line);
    }

    .factor-main h3 {
      margin: 0 0 12px;
      font-size: 22px;
      color: #2b2924;
    }

    .factor-main p {
      margin: 0;
      color: #625a50;
    }

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

    .factor-item {
      padding: 20px;
      border-radius: 20px;
      background: rgba(255, 255, 255, 0.82);
      border: 1px solid var(--line);
    }

    .factor-item strong {
      display: block;
      margin-bottom: 6px;
      color: #1f2724;
    }

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

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

    .step {
      position: relative;
      padding: 22px;
      border-radius: 22px;
      border: 1px solid var(--line);
      background: #ffffff;
    }

    .step::before {
      counter-increment: step;
      content: counter(step);
      display: inline-flex;
      width: 34px;
      height: 34px;
      align-items: center;
      justify-content: center;
      margin-bottom: 18px;
      border-radius: 12px;
      background: #eaf7f2;
      color: var(--brand-dark);
      font-weight: 850;
    }

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

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

    .compare {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
    }

    .compare-panel {
      padding: 24px;
      border-radius: 24px;
      border: 1px solid var(--line);
      background: rgba(255, 255, 255, 0.82);
    }

    .compare-panel h3 {
      margin: 0 0 14px;
      font-size: 20px;
    }

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

    .check-list li {
      position: relative;
      padding-left: 24px;
      color: #4f5558;
      font-size: 15px;
    }

    .check-list li::before {
      content: "";
      position: absolute;
      left: 0;
      top: 10px;
      width: 9px;
      height: 9px;
      border-radius: 999px;
      background: var(--brand);
    }

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

    .faq-item {
      border: 1px solid var(--line);
      border-radius: 20px;
      background: rgba(255, 255, 255, 0.86);
      overflow: hidden;
    }

    .faq-question {
      width: 100%;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 14px;
      padding: 18px 20px;
      border: 0;
      background: transparent;
      color: #1f2724;
      font: inherit;
      font-weight: 760;
      text-align: left;
      cursor: pointer;
    }

    .faq-question span:last-child {
      flex: 0 0 auto;
      width: 28px;
      height: 28px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      border-radius: 999px;
      background: #eef8f4;
      color: var(--brand-dark);
      transition: transform 0.2s ease;
    }

    .faq-answer {
      display: none;
      padding: 0 20px 18px;
      color: var(--muted);
      font-size: 15px;
    }

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

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

    .closing {
      padding: 30px;
      border-radius: 30px;
      background: linear-gradient(135deg, #0c7a61, #1a9478);
      color: #ffffff;
      display: grid;
      grid-template-columns: 1fr auto;
      gap: 22px;
      align-items: center;
      box-shadow: 0 18px 40px rgba(12, 122, 97, 0.18);
    }

    .closing h2 {
      margin: 0 0 8px;
      font-size: clamp(24px, 4vw, 34px);
      line-height: 1.2;
      color: #ffffff;
    }

    .closing p {
      margin: 0;
      color: #e9fff8;
    }

    .closing .btn {
      background: #ffffff;
      color: var(--brand-dark);
      box-shadow: none;
      white-space: nowrap;
    }

    .site-footer {
      margin-top: 8px;
      padding: 26px 0 30px;
      background: #f1eadf;
      border-top: 1px solid #e3d7c7;
      color: #343638;
    }

    .footer-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 18px;
      font-size: 14px;
    }

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

    .footer-links a {
      color: #3d4a46;
    }

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

    .reveal {
      opacity: 0;
      transform: translateY(18px);
      transition: opacity 0.55s ease, transform 0.55s ease;
    }

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

    @media (max-width: 860px) {
      .menu-toggle {
        display: inline-flex;
        align-items: center;
        justify-content: center;
      }

      .nav-links {
        position: absolute;
        top: 68px;
        left: 16px;
        right: 16px;
        display: none;
        flex-direction: column;
        align-items: stretch;
        gap: 4px;
        padding: 14px;
        border: 1px solid var(--line);
        border-radius: 18px;
        background: #fffdf8;
        box-shadow: var(--shadow);
      }

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

      .nav-links a {
        padding: 10px 12px;
        border-radius: 12px;
        border-bottom: 0;
      }

      .nav-links a:hover {
        background: #f2eee6;
      }

      .hero {
        padding-top: 44px;
      }

      .hero-grid,
      .factor-grid,
      .compare,
      .closing {
        grid-template-columns: 1fr;
      }

      .hero-copy {
        padding: 30px 24px;
      }

      .price-board,
      .steps {
        grid-template-columns: 1fr 1fr;
      }

      .closing .btn {
        justify-self: start;
      }
    }

    @media (max-width: 620px) {
      .container {
        width: min(100% - 24px, var(--container));
      }

      .hero-copy,
      .price-note {
        border-radius: 24px;
      }

      .price-board,
      .factor-list,
      .steps {
        grid-template-columns: 1fr;
      }

      section {
        padding: 34px 0;
      }

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

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

      .reveal,
      .btn,
      .price-card,
      .faq-question span:last-child {
        transition: none;
      }
    }