:root {
      --ink: #20170f;
      --muted: #6e6253;
      --gold: #b8873b;
      --gold-deep: #7c551f;
      --cream: #fbf6ec;
      --paper: #fffdf8;
      --line: rgba(126, 86, 31, 0.22);
      --dark: #1b130c;
      --dark-soft: #2a1c11;
      --shadow: 0 20px 55px rgba(52, 33, 14, 0.12);
      --radius: 24px;
      --container: 1160px;
    }

    * {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      margin: 0;
      font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", Arial, sans-serif;
      color: var(--ink);
      background:
        radial-gradient(circle at 10% 5%, rgba(184, 135, 59, 0.18), transparent 28rem),
        radial-gradient(circle at 90% 12%, rgba(124, 85, 31, 0.12), transparent 24rem),
        linear-gradient(180deg, #fffaf0 0%, #f7efe1 45%, #fffaf0 100%);
      line-height: 1.7;
      overflow-x: hidden;
    }

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

    img {
      max-width: 100%;
      height: auto;
      display: block;
    }

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

    .site-header {
      position: sticky;
      top: 0;
      z-index: 20;
      background: rgba(255, 250, 240, 0.88);
      backdrop-filter: blur(16px);
      border-bottom: 1px solid var(--line);
    }

    .nav {
      min-height: 74px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 22px;
    }

    .brand {
      display: inline-flex;
      align-items: center;
      gap: 12px;
      min-width: max-content;
      font-weight: 800;
      color: var(--ink);
    }

    .logo-mark {
      width: 42px;
      height: 42px;
      display: grid;
      place-items: center;
      border-radius: 50%;
      color: #fff7df;
      background:
        radial-gradient(circle at 30% 25%, #f6d08c, #b8873b 42%, #4f3212 100%);
      box-shadow: inset 0 0 0 1px rgba(255, 244, 205, 0.55), 0 10px 22px rgba(75, 46, 14, 0.24);
      font-size: 22px;
      letter-spacing: 0.02em;
    }

    .brand-text {
      display: flex;
      flex-direction: column;
      line-height: 1.15;
    }

    .brand-text strong {
      font-size: 18px;
    }

    .brand-text span {
      color: var(--muted);
      font-size: 12px;
      font-weight: 500;
    }

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

    .nav-links a {
      padding: 9px 12px;
      border-radius: 999px;
      color: #3f3328;
      font-size: 14px;
      transition: background 0.25s ease, color 0.25s ease, transform 0.25s ease;
    }

    .nav-links a:hover {
      color: #20170f;
      background: rgba(184, 135, 59, 0.13);
      transform: translateY(-1px);
    }

    .nav-cta {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 16px;
      border-radius: 999px;
      color: #fff7df;
      background: linear-gradient(135deg, #2b1c10, #8a6026);
      box-shadow: 0 12px 24px rgba(80, 51, 18, 0.18);
      font-size: 14px;
      font-weight: 700;
      white-space: nowrap;
      transition: transform 0.25s ease, box-shadow 0.25s ease;
    }

    .nav-cta:hover {
      transform: translateY(-2px);
      box-shadow: 0 16px 32px rgba(80, 51, 18, 0.25);
    }

    .menu-toggle {
      display: none;
      width: 42px;
      height: 42px;
      border: 1px solid var(--line);
      border-radius: 14px;
      background: #fffaf0;
      color: var(--ink);
      cursor: pointer;
    }

    .menu-toggle span {
      display: block;
      width: 18px;
      height: 2px;
      margin: 4px auto;
      background: currentColor;
      border-radius: 999px;
    }

    main {
      position: relative;
    }

    .hero {
      padding: 58px 0 44px;
    }

    .hero-shell {
      display: grid;
      grid-template-columns: minmax(0, 1.03fr) minmax(320px, 0.97fr);
      gap: 30px;
      align-items: center;
      padding: 28px;
      border: 1px solid var(--line);
      border-radius: 34px;
      background:
        linear-gradient(135deg, rgba(255, 253, 248, 0.92), rgba(246, 234, 211, 0.86)),
        repeating-linear-gradient(45deg, rgba(184, 135, 59, 0.07) 0 1px, transparent 1px 16px);
      box-shadow: var(--shadow);
      overflow: hidden;
      position: relative;
    }

    .hero-shell::before {
      content: "";
      position: absolute;
      inset: 16px;
      border: 1px solid rgba(184, 135, 59, 0.24);
      border-radius: 26px;
      pointer-events: none;
    }

    .hero-content,
    .hero-visual {
      position: relative;
      z-index: 1;
    }

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 7px 12px;
      border: 1px solid rgba(184, 135, 59, 0.34);
      border-radius: 999px;
      color: #6d4918;
      background: rgba(255, 249, 235, 0.78);
      font-size: 13px;
      font-weight: 700;
    }

    .eyebrow::before {
      content: "";
      width: 7px;
      height: 7px;
      border-radius: 50%;
      background: var(--gold);
      box-shadow: 0 0 0 5px rgba(184, 135, 59, 0.14);
    }

    h1 {
      margin: 18px 0 14px;
      font-size: clamp(34px, 6vw, 58px);
      line-height: 1.08;
      letter-spacing: -0.04em;
      color: #1d140d;
    }

    .hero-lead {
      max-width: 660px;
      margin: 0;
      color: #4e4338;
      font-size: 17px;
    }

    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-top: 24px;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 46px;
      padding: 12px 18px;
      border-radius: 999px;
      font-weight: 800;
      transition: transform 0.22s ease, box-shadow 0.22s ease, background 0.22s ease;
    }

    .btn-primary {
      color: #fff8e8;
      background: linear-gradient(135deg, #1b130c, #7b531e 58%, #bd8c3c);
      box-shadow: 0 16px 30px rgba(88, 57, 20, 0.22);
    }

    .btn-secondary {
      color: #312316;
      background: rgba(255, 253, 248, 0.78);
      border: 1px solid rgba(184, 135, 59, 0.34);
    }

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

    .btn-primary:hover {
      box-shadow: 0 20px 38px rgba(88, 57, 20, 0.28);
    }

    .hero-note {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 12px;
      margin-top: 24px;
    }

    .mini-stat {
      padding: 14px;
      border-radius: 18px;
      background: rgba(255, 250, 240, 0.78);
      border: 1px solid rgba(184, 135, 59, 0.18);
    }

    .mini-stat strong {
      display: block;
      color: #2a1c11;
      font-size: 15px;
    }

    .mini-stat span {
      color: var(--muted);
      font-size: 13px;
    }

    .hero-visual {
      display: grid;
      gap: 14px;
    }

    .image-frame {
      overflow: hidden;
      border-radius: 28px;
      border: 1px solid rgba(184, 135, 59, 0.3);
      background: #f6ead4;
      box-shadow: 0 18px 38px rgba(44, 26, 10, 0.16);
    }

    .image-frame img {
      width: 100%;
      aspect-ratio: 4 / 3;
      object-fit: cover;
      transform: scale(1.01);
      transition: transform 0.8s ease;
    }

    .image-frame:hover img {
      transform: scale(1.05);
    }

    .visual-card {
      padding: 16px;
      border-radius: 22px;
      color: #fdf5df;
      background:
        linear-gradient(135deg, rgba(43, 28, 16, 0.98), rgba(108, 72, 27, 0.96)),
        radial-gradient(circle at 15% 20%, rgba(246, 208, 140, 0.24), transparent 16rem);
      box-shadow: 0 16px 34px rgba(41, 24, 10, 0.18);
    }

    .visual-card strong {
      display: block;
      margin-bottom: 4px;
      color: #ffe3a3;
      font-size: 16px;
    }

    .visual-card p {
      margin: 0;
      color: #f9ebcd;
      font-size: 14px;
    }

    section {
      padding: 42px 0;
    }

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

    .section-kicker {
      margin: 0 0 6px;
      color: var(--gold-deep);
      font-size: 13px;
      font-weight: 900;
      letter-spacing: 0.12em;
      text-transform: uppercase;
    }

    h2 {
      margin: 0;
      color: #20170f;
      font-size: clamp(26px, 4vw, 38px);
      line-height: 1.18;
      letter-spacing: -0.03em;
    }

    .section-desc {
      max-width: 430px;
      margin: 0;
      color: var(--muted);
      font-size: 15px;
    }

    .about-panel {
      display: grid;
      grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
      gap: 24px;
      align-items: stretch;
    }

    .about-text {
      padding: 26px;
      border-radius: var(--radius);
      background: rgba(255, 253, 248, 0.78);
      border: 1px solid var(--line);
      box-shadow: var(--shadow);
    }

    .about-text p {
      margin: 0 0 14px;
      color: #4a3e34;
    }

    .about-text p:last-child {
      margin-bottom: 0;
    }

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

    .info-list li {
      padding: 16px 18px;
      border-radius: 20px;
      background: linear-gradient(135deg, rgba(255, 253, 248, 0.9), rgba(250, 239, 218, 0.78));
      border: 1px solid rgba(184, 135, 59, 0.2);
    }

    .info-list strong {
      display: block;
      color: #24180e;
      margin-bottom: 3px;
    }

    .info-list span,
    .info-list a {
      color: #5e5144;
    }

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

    .solution-card {
      min-height: 100%;
      padding: 22px;
      border-radius: 24px;
      background: rgba(255, 253, 248, 0.82);
      border: 1px solid rgba(184, 135, 59, 0.2);
      box-shadow: 0 12px 34px rgba(52, 33, 14, 0.08);
      transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
    }

    .solution-card:hover {
      transform: translateY(-5px);
      border-color: rgba(184, 135, 59, 0.42);
      box-shadow: 0 20px 44px rgba(52, 33, 14, 0.14);
    }

    .card-icon {
      width: 44px;
      height: 44px;
      display: grid;
      place-items: center;
      margin-bottom: 14px;
      border-radius: 16px;
      color: #fff8e8;
      background: linear-gradient(135deg, #2a1c11, #b8873b);
      font-weight: 900;
    }

    h3 {
      margin: 0 0 8px;
      color: #23170d;
      font-size: 19px;
      line-height: 1.35;
    }

    .solution-card p {
      margin: 0;
      color: #5e5144;
      font-size: 15px;
    }

    .process {
      display: grid;
      grid-template-columns: 0.82fr 1.18fr;
      gap: 24px;
      align-items: start;
    }

    .process-visual {
      overflow: hidden;
      border-radius: 28px;
      border: 1px solid rgba(184, 135, 59, 0.28);
      background: #f3e7d0;
      box-shadow: var(--shadow);
    }

    .process-visual img {
      width: 100%;
      aspect-ratio: 5 / 4;
      object-fit: cover;
    }

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

    .step {
      display: grid;
      grid-template-columns: 48px minmax(0, 1fr);
      gap: 14px;
      align-items: start;
      padding: 18px;
      border-radius: 22px;
      background: linear-gradient(135deg, rgba(255, 253, 248, 0.9), rgba(248, 236, 214, 0.76));
      border: 1px solid rgba(184, 135, 59, 0.2);
    }

    .step::before {
      counter-increment: step;
      content: counter(step);
      width: 44px;
      height: 44px;
      display: grid;
      place-items: center;
      border-radius: 50%;
      color: #fff6df;
      background: linear-gradient(135deg, #1b130c, #9a6b2a);
      font-weight: 900;
      box-shadow: inset 0 0 0 1px rgba(255, 232, 170, 0.25);
    }

    .step p {
      margin: 4px 0 0;
      color: #5e5144;
      font-size: 15px;
    }

    .guarantee-wrap {
      padding: 24px;
      border-radius: 30px;
      color: #fff8e8;
      background:
        radial-gradient(circle at 18% 12%, rgba(246, 208, 140, 0.22), transparent 18rem),
        linear-gradient(135deg, #1b130c, #2a1c11 55%, #604017);
      box-shadow: 0 22px 58px rgba(43, 28, 16, 0.22);
    }

    .guarantee-wrap .section-kicker,
    .guarantee-wrap h2 {
      color: #ffe0a0;
    }

    .guarantee-wrap .section-desc {
      color: #f4e6ca;
    }

    .policy-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 14px;
      margin-top: 20px;
    }

    .policy-card {
      padding: 18px;
      border-radius: 22px;
      background: rgba(255, 250, 235, 0.09);
      border: 1px solid rgba(255, 226, 162, 0.2);
    }

    .policy-card h3 {
      color: #ffe0a0;
      font-size: 17px;
    }

    .policy-card p {
      margin: 0;
      color: #f8e9cc;
      font-size: 14px;
    }

    .faq-grid {
      display: grid;
      grid-template-columns: 0.82fr 1.18fr;
      gap: 24px;
      align-items: start;
    }

    .faq-note {
      position: sticky;
      top: 98px;
      padding: 24px;
      border-radius: var(--radius);
      background: rgba(255, 253, 248, 0.82);
      border: 1px solid var(--line);
      box-shadow: var(--shadow);
    }

    .faq-note p {
      margin: 0;
      color: #5e5144;
    }

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

    .faq-item {
      border-radius: 20px;
      overflow: hidden;
      background: rgba(255, 253, 248, 0.86);
      border: 1px solid rgba(184, 135, 59, 0.2);
      box-shadow: 0 10px 28px rgba(52, 33, 14, 0.06);
    }

    .faq-question {
      width: 100%;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      padding: 18px 20px;
      border: 0;
      background: transparent;
      color: #24180e;
      text-align: left;
      font: inherit;
      font-weight: 850;
      cursor: pointer;
    }

    .faq-question span {
      flex: 1;
    }

    .faq-question::after {
      content: "+";
      width: 28px;
      height: 28px;
      display: grid;
      place-items: center;
      border-radius: 50%;
      color: #fff8e8;
      background: #8a6026;
      flex: 0 0 auto;
      transition: transform 0.25s ease;
    }

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

    .faq-answer {
      display: none;
      padding: 0 20px 18px;
      color: #5e5144;
    }

    .faq-item.active .faq-answer {
      display: block;
      animation: fadeDown 0.25s ease both;
    }

    .links-panel {
      padding: 24px;
      border-radius: 30px;
      background: rgba(255, 253, 248, 0.8);
      border: 1px solid var(--line);
      box-shadow: var(--shadow);
    }

    .link-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 10px;
      margin-top: 18px;
    }

    .link-grid a {
      padding: 12px 14px;
      border-radius: 16px;
      color: #4c3924;
      background: rgba(250, 239, 218, 0.72);
      border: 1px solid rgba(184, 135, 59, 0.16);
      font-size: 14px;
      transition: color 0.25s ease, background 0.25s ease, transform 0.25s ease;
    }

    .link-grid a:hover {
      color: #1f150c;
      background: rgba(229, 203, 155, 0.56);
      transform: translateY(-2px);
    }

    .site-footer {
      margin-top: 18px;
      background: #1b130c;
      color: #f7ead0;
      border-top: 1px solid rgba(255, 226, 162, 0.18);
    }

    .footer-inner {
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
      gap: 24px;
      align-items: start;
      padding: 28px 0;
    }

    .footer-brand {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 10px;
    }

    .footer-brand .logo-mark {
      width: 38px;
      height: 38px;
      font-size: 20px;
    }

    .footer-inner strong {
      color: #ffe0a0;
    }

    .footer-inner p {
      margin: 0;
      color: #ead8b8;
      font-size: 14px;
    }

    .footer-links {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      justify-content: flex-end;
    }

    .footer-links a {
      color: #f7ead0;
      padding: 7px 10px;
      border-radius: 999px;
      background: rgba(255, 250, 235, 0.08);
      border: 1px solid rgba(255, 226, 162, 0.14);
      font-size: 13px;
    }

    .copyright {
      padding: 14px 0 18px;
      border-top: 1px solid rgba(255, 226, 162, 0.12);
      color: #d9c7a6;
      font-size: 13px;
    }

    .reveal {
      opacity: 0;
      transform: translateY(18px);
      transition: opacity 0.7s ease, transform 0.7s ease;
    }

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

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

    @media (max-width: 900px) {
      .menu-toggle {
        display: inline-block;
      }

      .nav {
        flex-wrap: wrap;
      }

      .nav-links {
        order: 3;
        width: 100%;
        display: none;
        justify-content: flex-start;
        padding: 0 0 14px;
      }

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

      .nav-cta {
        display: none;
      }

      .hero-shell,
      .about-panel,
      .process,
      .faq-grid,
      .footer-inner {
        grid-template-columns: 1fr;
      }

      .hero-note,
      .solutions-grid,
      .policy-grid,
      .link-grid {
        grid-template-columns: 1fr;
      }

      .section-head {
        align-items: flex-start;
        flex-direction: column;
      }

      .faq-note {
        position: static;
      }

      .footer-links {
        justify-content: flex-start;
      }
    }

    @media (max-width: 560px) {
      .container {
        width: min(100% - 24px, var(--container));
      }

      .hero {
        padding-top: 28px;
      }

      .hero-shell {
        padding: 18px;
        border-radius: 26px;
      }

      .hero-shell::before {
        inset: 10px;
        border-radius: 20px;
      }

      h1 {
        font-size: 36px;
      }

      section {
        padding: 32px 0;
      }

      .about-text,
      .links-panel,
      .guarantee-wrap {
        padding: 20px;
      }

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