:root {
      --bg: #f7f3ea;
      --surface: #fffaf1;
      --card: #ffffff;
      --text: #26231f;
      --muted: #6f665b;
      --line: #e8dccb;
      --primary: #b96d32;
      --primary-dark: #8d4b22;
      --soft: #efe4d2;
      --green: #3d7663;
      --shadow: 0 18px 50px rgba(91, 62, 35, 0.11);
      --radius: 24px;
      --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 top left, rgba(240, 196, 132, 0.34), transparent 34rem),
        radial-gradient(circle at 88% 18%, rgba(129, 173, 150, 0.18), transparent 26rem),
        linear-gradient(180deg, #f8f0e2 0%, var(--bg) 42%, #fbf7ef 100%);
      line-height: 1.7;
      overflow-x: hidden;
    }

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

    button {
      font: inherit;
    }

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

    .site-header {
      position: sticky;
      top: 0;
      z-index: 20;
      background: rgba(247, 243, 234, 0.86);
      backdrop-filter: blur(16px);
      border-bottom: 1px solid rgba(232, 220, 203, 0.78);
    }

    .nav {
      min-height: 72px;
      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;
      display: grid;
      place-items: center;
      color: #fff;
      background: linear-gradient(135deg, var(--primary), var(--green));
      box-shadow: 0 10px 24px rgba(185, 109, 50, 0.22);
    }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .nav-links a {
      padding: 10px 13px;
      border-radius: 999px;
      color: #443c33;
      font-size: 15px;
      transition: background 0.2s ease, color 0.2s ease, transform 0.2s ease;
    }

    .nav-links a:hover {
      background: rgba(185, 109, 50, 0.1);
      color: var(--primary-dark);
      transform: translateY(-1px);
    }

    .menu-toggle {
      display: none;
      width: 44px;
      height: 44px;
      border: 1px solid var(--line);
      border-radius: 14px;
      background: #fff8ec;
      color: var(--text);
      cursor: pointer;
    }

    .menu-toggle span {
      display: block;
      width: 18px;
      height: 2px;
      margin: 5px auto;
      background: currentColor;
      border-radius: 2px;
      transition: transform 0.2s ease, opacity 0.2s ease;
    }

    .menu-toggle.is-open span:nth-child(1) {
      transform: translateY(7px) rotate(45deg);
    }

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

    .menu-toggle.is-open span:nth-child(3) {
      transform: translateY(-7px) rotate(-45deg);
    }

    main {
      display: block;
    }

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

    .hero-grid {
      display: grid;
      grid-template-columns: minmax(0, 1.08fr) minmax(280px, 0.72fr);
      gap: 32px;
      align-items: stretch;
    }

    .hero-copy {
      padding: clamp(28px, 5vw, 56px);
      border: 1px solid rgba(232, 220, 203, 0.85);
      border-radius: calc(var(--radius) + 8px);
      background: linear-gradient(145deg, rgba(255, 250, 241, 0.95), rgba(255, 255, 255, 0.72));
      box-shadow: var(--shadow);
      position: relative;
      overflow: hidden;
      animation: riseIn 0.72s ease both;
    }

    .hero-copy::after {
      content: "";
      position: absolute;
      right: -90px;
      bottom: -90px;
      width: 220px;
      height: 220px;
      border-radius: 50%;
      background: rgba(185, 109, 50, 0.12);
      pointer-events: none;
    }

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 7px 12px;
      border-radius: 999px;
      background: rgba(61, 118, 99, 0.1);
      color: var(--green);
      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, 118, 99, 0.12);
    }

    h1 {
      margin: 0;
      font-size: clamp(34px, 6vw, 58px);
      line-height: 1.08;
      letter-spacing: -0.045em;
      color: #201b17;
      max-width: 820px;
    }

    .hero-lead {
      margin: 22px 0 0;
      color: #51483f;
      font-size: clamp(17px, 2.2vw, 20px);
      max-width: 760px;
    }

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

    .btn {
      min-height: 46px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 12px 18px;
      border-radius: 999px;
      font-weight: 800;
      border: 1px solid transparent;
      transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
    }

    .btn-primary {
      background: var(--primary);
      color: #fff;
      box-shadow: 0 14px 28px rgba(185, 109, 50, 0.24);
    }

    .btn-primary:hover {
      transform: translateY(-2px);
      background: var(--primary-dark);
      box-shadow: 0 18px 36px rgba(185, 109, 50, 0.28);
    }

    .btn-secondary {
      background: rgba(255, 255, 255, 0.72);
      color: #362d24;
      border-color: var(--line);
    }

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

    .hero-panel {
      border-radius: calc(var(--radius) + 8px);
      background: #fffdf8;
      border: 1px solid rgba(232, 220, 203, 0.95);
      box-shadow: var(--shadow);
      padding: 24px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      gap: 20px;
      animation: riseIn 0.72s 0.08s ease both;
    }

    .panel-title {
      margin: 0;
      font-size: 22px;
      line-height: 1.3;
      letter-spacing: -0.02em;
    }

    .quick-list {
      display: grid;
      gap: 12px;
      margin: 18px 0 0;
      padding: 0;
      list-style: none;
    }

    .quick-list li {
      display: grid;
      grid-template-columns: 28px 1fr;
      gap: 10px;
      align-items: start;
      color: #4d443b;
    }

    .check {
      width: 28px;
      height: 28px;
      border-radius: 10px;
      display: grid;
      place-items: center;
      background: rgba(61, 118, 99, 0.12);
      color: var(--green);
      font-weight: 900;
      line-height: 1;
    }

    .note-box {
      padding: 16px;
      border-radius: 18px;
      background: #f4ead9;
      color: #514438;
      font-size: 15px;
    }

    .section {
      padding: 42px 0;
    }

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

    .section-kicker {
      color: var(--primary-dark);
      font-size: 14px;
      font-weight: 800;
      letter-spacing: 0.08em;
      text-transform: uppercase;
    }

    h2 {
      margin: 0;
      font-size: clamp(26px, 4vw, 40px);
      line-height: 1.18;
      letter-spacing: -0.035em;
      color: #211d19;
    }

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

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

    .strip-item {
      padding: 20px;
      border-radius: 22px;
      background: rgba(255, 255, 255, 0.72);
      border: 1px solid rgba(232, 220, 203, 0.9);
      transition: transform 0.2s ease, box-shadow 0.2s ease;
    }

    .strip-item:hover {
      transform: translateY(-4px);
      box-shadow: 0 16px 34px rgba(91, 62, 35, 0.1);
    }

    .strip-item strong {
      display: block;
      margin-bottom: 6px;
      font-size: 18px;
      color: #2d261f;
    }

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

    .choice-grid {
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 18px;
    }

    .choice-card {
      border: 1px solid rgba(232, 220, 203, 0.95);
      border-radius: var(--radius);
      background: rgba(255, 255, 255, 0.78);
      padding: 24px;
      position: relative;
      overflow: hidden;
      transition: transform 0.22s ease, box-shadow 0.22s ease, border-color 0.22s ease;
    }

    .choice-card:hover {
      transform: translateY(-4px);
      border-color: rgba(185, 109, 50, 0.45);
      box-shadow: 0 18px 38px rgba(91, 62, 35, 0.11);
    }

    .choice-card h3 {
      margin: 0 0 10px;
      font-size: 21px;
      line-height: 1.35;
      color: #241f1b;
    }

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

    .choice-card .tag {
      display: inline-flex;
      margin-top: 16px;
      padding: 6px 10px;
      border-radius: 999px;
      background: rgba(185, 109, 50, 0.11);
      color: var(--primary-dark);
      font-size: 13px;
      font-weight: 800;
    }

    .timeline {
      display: grid;
      gap: 14px;
      counter-reset: step;
    }

    .step {
      counter-increment: step;
      display: grid;
      grid-template-columns: 58px minmax(0, 1fr);
      gap: 16px;
      align-items: start;
      padding: 20px;
      border-radius: 24px;
      background: rgba(255, 255, 255, 0.76);
      border: 1px solid rgba(232, 220, 203, 0.9);
    }

    .step::before {
      content: counter(step);
      width: 48px;
      height: 48px;
      border-radius: 18px;
      display: grid;
      place-items: center;
      background: #2e433c;
      color: #fff;
      font-weight: 900;
      box-shadow: 0 12px 24px rgba(46, 67, 60, 0.18);
    }

    .step h3 {
      margin: 0 0 6px;
      font-size: 20px;
      color: #231f1b;
    }

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

    .split {
      display: grid;
      grid-template-columns: minmax(0, 0.88fr) minmax(280px, 0.62fr);
      gap: 20px;
      align-items: start;
    }

    .article-card,
    .side-card {
      border: 1px solid rgba(232, 220, 203, 0.9);
      border-radius: var(--radius);
      background: rgba(255, 255, 255, 0.76);
      box-shadow: 0 14px 34px rgba(91, 62, 35, 0.07);
    }

    .article-card {
      padding: clamp(22px, 4vw, 34px);
    }

    .article-card h2 {
      margin-bottom: 16px;
    }

    .article-card p {
      margin: 0 0 16px;
      color: #51483f;
    }

    .article-card p:last-child {
      margin-bottom: 0;
    }

    .side-card {
      padding: 22px;
      position: sticky;
      top: 92px;
    }

    .side-card h3 {
      margin: 0 0 12px;
      font-size: 20px;
    }

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

    .compact-list li {
      padding: 12px 13px;
      border-radius: 16px;
      background: #f6eddf;
      color: #514438;
      font-size: 15px;
    }

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

    .faq-item {
      border: 1px solid rgba(232, 220, 203, 0.95);
      border-radius: 20px;
      background: rgba(255, 255, 255, 0.78);
      overflow: hidden;
    }

    .faq-question {
      width: 100%;
      min-height: 58px;
      padding: 16px 18px;
      border: 0;
      background: transparent;
      color: #251f19;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      text-align: left;
      cursor: pointer;
      font-weight: 800;
    }

    .faq-question::after {
      content: "+";
      width: 28px;
      height: 28px;
      flex: 0 0 auto;
      border-radius: 50%;
      display: grid;
      place-items: center;
      background: #f2e6d4;
      color: var(--primary-dark);
      font-size: 20px;
      line-height: 1;
      transition: transform 0.2s ease;
    }

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

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

    .faq-item.is-open .faq-answer {
      display: block;
      animation: fadeIn 0.22s ease both;
    }

    .closing {
      padding: 46px 0 56px;
    }

    .closing-box {
      display: grid;
      grid-template-columns: minmax(0, 1fr) auto;
      gap: 20px;
      align-items: center;
      padding: clamp(24px, 4vw, 36px);
      border-radius: calc(var(--radius) + 6px);
      background: linear-gradient(135deg, #2e433c, #6f4a2f);
      color: #fff;
      box-shadow: 0 22px 48px rgba(46, 67, 60, 0.18);
    }

    .closing-box h2 {
      color: #fff;
      margin-bottom: 8px;
    }

    .closing-box p {
      margin: 0;
      color: rgba(255, 255, 255, 0.82);
      max-width: 720px;
    }

    .closing-box .btn {
      background: #fff5e6;
      color: #51351f;
      white-space: nowrap;
    }

    .site-footer {
      border-top: 1px solid var(--line);
      background: #fff8ec;
      color: #42382f;
    }

    .footer-inner {
      min-height: 78px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      padding: 18px 0;
      font-size: 14px;
    }

    .footer-links {
      display: flex;
      gap: 12px;
      flex-wrap: wrap;
    }

    .footer-links a {
      color: #5b4c3d;
      padding: 6px 0;
    }

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

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

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

    @keyframes riseIn {
      from {
        opacity: 0;
        transform: translateY(18px);
      }
      to {
        opacity: 1;
        transform: translateY(0);
      }
    }

    @keyframes fadeIn {
      from {
        opacity: 0;
        transform: translateY(-4px);
      }
      to {
        opacity: 1;
        transform: translateY(0);
      }
    }

    @media (max-width: 900px) {
      .hero {
        padding-top: 44px;
      }

      .hero-grid,
      .split,
      .closing-box {
        grid-template-columns: 1fr;
      }

      .side-card {
        position: static;
      }

      .info-strip {
        grid-template-columns: 1fr;
      }

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

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

    @media (max-width: 760px) {
      .container {
        width: min(100% - 24px, var(--container));
      }

      .nav {
        min-height: 64px;
      }

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

      .nav-links {
        position: absolute;
        left: 12px;
        right: 12px;
        top: 70px;
        display: none;
        flex-direction: column;
        align-items: stretch;
        gap: 6px;
        padding: 12px;
        border: 1px solid var(--line);
        border-radius: 20px;
        background: #fffaf1;
        box-shadow: 0 16px 36px rgba(91, 62, 35, 0.12);
      }

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

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

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

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

      .btn {
        width: 100%;
      }

      .section {
        padding: 34px 0;
      }

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

      .step::before {
        width: 44px;
        height: 44px;
      }

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

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