/* roulang page: index */
:root {
      --wood: #5C3A21;
      --wood-deep: #3E2615;
      --brass: #C4A574;
      --brass-soft: #D8C4A2;
      --ink: #1C1A17;
      --plaster: #F6F1E8;
      --cement: #8D8882;
      --terracotta: #B85C38;
      --asphalt: #161412;
      --card: #FFFbf6;
      --line: rgba(92, 58, 33, 0.16);
      --warm-shadow: 0 8px 22px rgba(92, 58, 33, 0.08);
      --radius-card: 10px;
      --radius-btn: 5px;
      --container: 1220px;
      --header-h: 118px;
      --serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", serif;
      --sans: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
    }
    *, *::before, *::after { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    body {
      margin: 0;
      color: var(--ink);
      background: var(--plaster);
      font-family: var(--sans);
      font-size: 17px;
      line-height: 1.8;
      overflow-x: hidden;
    }
    img { max-width: 100%; display: block; height: auto; }
    a { color: inherit; text-decoration: none; }
    button, input, select, textarea { font-family: inherit; }
    h1, h2, h3 { font-family: var(--serif); line-height: 1.28; margin: 0; color: var(--ink); }
    p { margin: 0 0 1.15em; }
    ul { margin: 0; padding: 0; list-style: none; }
    .container { width: min(100% - 40px, var(--container)); margin: 0 auto; }
    .skip {
      position: absolute; left: -999px; top: 8px;
    }
    .skip:focus { left: 12px; background: #fff; padding: 8px 12px; z-index: 80; }
    .eyebrow {
      display: inline-flex; align-items: center; gap: 8px;
      color: var(--wood); font-size: 13px; letter-spacing: 0.14em;
      text-transform: none; font-weight: 600;
    }
    .eyebrow::before {
      content: ""; width: 28px; height: 1px; background: var(--brass);
    }
    .sec {
      padding: 96px 0;
      position: relative;
    }
    .sec-tight { padding: 72px 0; }
    .sec-head { max-width: 760px; margin-bottom: 42px; }
    .sec-head h2 { font-size: 34px; margin: 10px 0 16px; }
    .sec-head p { color: #4d4740; font-size: 16px; line-height: 1.82; }
    .paper-noise {
      background-image:
        linear-gradient(180deg, rgba(246,241,232,0.94), rgba(246,241,232,0.92)),
        url("/assets/images/e5f89f4da126944e.jpg");
      background-size: cover;
      background-position: center;
    }
    .btn {
      display: inline-flex; align-items: center; justify-content: center;
      min-height: 46px; padding: 0 22px; border-radius: var(--radius-btn);
      border: 1px solid transparent; cursor: pointer; font-weight: 600;
      font-size: 15px; transition: 0.22s ease; text-align: center;
    }
    .btn-primary {
      background: var(--wood); color: #f8f1e6; box-shadow: inset 0 -2px 0 rgba(196,165,116,0);
    }
    .btn-primary:hover { background: var(--wood-deep); box-shadow: inset 0 -3px 0 var(--brass); }
    .btn-primary:focus, .btn-ghost:focus, .btn-terra:focus, .nav a:focus, .icon-btn:focus {
      outline: 2px solid var(--brass); outline-offset: 3px;
    }
    .btn-primary:active, .btn-ghost:active, .btn-terra:active { transform: translateY(1px); }
    .btn-ghost {
      background: transparent; color: var(--wood); border-color: var(--wood);
    }
    .btn-ghost:hover { background: rgba(92,58,33,0.06); border-color: var(--brass); }
    .btn-terra { background: var(--terracotta); color: #fff7ef; }
    .btn-terra:hover { filter: brightness(0.93); }
    .btn-light { background: #f4ead8; color: var(--wood); }
    .badge {
      display: inline-flex; align-items: center; min-height: 28px;
      padding: 0 10px; border-radius: 4px; font-size: 12px; letter-spacing: 0.04em;
      background: rgba(184,92,56,0.12); color: var(--terracotta); font-weight: 600;
    }
    .badge-brass { background: rgba(196,165,116,0.18); color: #7a5c32; }
    .site-header { position: relative; z-index: 40; }
    .toolbar {
      background: var(--ink); color: #efe6d6; font-size: 13px;
      transition: 0.25s ease;
    }
    .toolbar-inner {
      min-height: 38px; display: flex; align-items: center; justify-content: space-between; gap: 16px;
    }
    .toolbar a { color: var(--brass-soft); }
    .toolbar a:hover { color: #fff; }
    .toolbar-left, .toolbar-right { display: flex; gap: 18px; flex-wrap: wrap; align-items: center; }
    .nav-row {
      background: rgba(246,241,232,0.92);
      backdrop-filter: blur(10px);
      border-bottom: 1px solid var(--line);
    }
    .nav-inner {
      min-height: 80px; display: flex; align-items: center; gap: 24px;
    }
    .logo {
      display: flex; align-items: center; gap: 10px; flex: 0 0 auto;
      font-family: var(--serif); font-weight: 700; font-size: 22px; color: var(--wood);
    }
    .logo-mark {
      width: 34px; height: 34px; border: 1px solid var(--brass);
      display: grid; place-items: center; font-size: 13px; color: var(--brass);
    }
    .nav-links { display: flex; gap: 6px 18px; flex: 1; justify-content: flex-end; flex-wrap: wrap; }
    .nav-links a {
      position: relative; padding: 10px 2px; font-size: 14px; color: #3b342e; font-weight: 500;
    }
    .nav-links a:hover { color: var(--wood); }
    .nav-links a.active::after, .nav-links a:hover::after {
      content: ""; position: absolute; left: 0; right: 0; bottom: 4px; height: 2px; background: var(--brass);
    }
    .nav-cta { margin-left: 8px; }
    .burger, .drawer { display: none; }
    .is-sticky .nav-row {
      position: sticky; top: 0; z-index: 50;
      box-shadow: 0 6px 18px rgba(28,26,23,0.08);
    }
    .is-sticky .toolbar { max-height: 8px; overflow: hidden; }
    #hero.sec { padding: 28px 0 40px; }
    .hero-stack {
      display: grid; grid-template-columns: 1.45fr 0.9fr; gap: 18px; align-items: stretch;
    }
    .hero-main {
      position: relative; min-height: 560px; overflow: hidden; border-radius: 4px;
      box-shadow: var(--warm-shadow);
    }
    .slides { position: absolute; inset: 0; }
    .slide {
      position: absolute; inset: 0; opacity: 0; transition: opacity 0.6s ease;
      background-size: cover; background-position: center;
    }
    .slide.is-on { opacity: 1; }
    .slide::after {
      content: ""; position: absolute; inset: 0;
      background: linear-gradient(90deg, rgba(22,20,18,0.78) 0%, rgba(22,20,18,0.38) 58%, rgba(22,20,18,0.18) 100%);
    }
    .hero-copy {
      position: relative; z-index: 2; height: 100%;
      display: flex; flex-direction: column; justify-content: flex-end;
      padding: 48px 42px; color: #f6efe4;
    }
    .hero-copy h1 { color: #f8f3ea; font-size: 46px; max-width: 16ch; margin-bottom: 16px; }
    .hero-copy p { max-width: 58ch; color: #efe4d3; font-size: 16px; line-height: 1.85; }
    .hero-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 8px; }
    .hero-ctrl {
      position: absolute; z-index: 3; right: 18px; bottom: 18px; display: flex; gap: 8px; align-items: center;
    }
    .icon-btn {
      width: 44px; height: 44px; border-radius: 4px; border: 1px solid rgba(196,165,116,0.55);
      background: rgba(22,20,18,0.45); color: #f4ead8; cursor: pointer;
    }
    .dots { display: flex; gap: 6px; }
    .dots button {
      width: 10px; height: 10px; border-radius: 50%; border: 0; background: rgba(255,255,255,0.35); cursor: pointer;
    }
    .dots button.on { background: var(--brass); }
    .hero-side { display: grid; grid-template-rows: 1.05fr 0.95fr; gap: 18px; }
    .side-card {
      position: relative; overflow: hidden; border-radius: 4px; min-height: 210px;
      box-shadow: var(--warm-shadow);
    }
    .side-card img { width: 100%; height: 100%; object-fit: cover; min-height: 210px; }
    .side-card figcaption {
      position: absolute; inset: auto 0 0 0; padding: 18px 18px 16px;
      background: linear-gradient(180deg, transparent, rgba(22,20,18,0.78));
      color: #f6efe4;
    }
    .side-card h3 { color: #f6efe4; font-size: 20px; margin-bottom: 4px; }
    .side-a { transform: translateY(10px); }
    .side-b { transform: translateX(8px); }
    .calendar-band {
      margin-top: 22px; background: #fffdf9; border: 1px solid var(--line); border-radius: 8px;
      display: grid; grid-template-columns: 180px 1fr; overflow: hidden;
    }
    .calendar-label {
      background: var(--wood); color: #f6efe4; padding: 18px 20px; font-family: var(--serif);
    }
    .calendar-list { display: grid; grid-template-columns: repeat(4, 1fr); }
    .calendar-list li { padding: 14px 16px; border-left: 1px solid var(--line); font-size: 14px; }
    .calendar-list strong { display: block; color: var(--wood); font-size: 13px; }
    #intro { background: #fffdf9; }
    .intro-grid { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 48px; align-items: center; }
    .intro-facts { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-top: 22px; }
    .fact {
      border: 1px solid var(--line); padding: 16px 16px 14px; border-radius: 8px; background: var(--card);
    }
    .fact b { display: block; font-family: var(--serif); color: var(--wood); font-size: 18px; }
    .intro-visual { position: relative; }
    .intro-visual img { width: 100%; height: 460px; object-fit: cover; border-radius: 4px; }
    .intro-chip {
      position: absolute; left: -18px; bottom: 28px; width: 210px; background: var(--asphalt);
      color: #f4ead8; padding: 16px; border-top: 2px solid var(--brass);
    }
    #craft { background: var(--plaster); }
    .craft-grid {
      display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px;
    }
    .craft-card {
      background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 24px 22px 22px;
      box-shadow: var(--warm-shadow); transition: 0.22s ease;
    }
    .craft-card:hover { transform: translateY(-3px); border-color: var(--brass); }
    .craft-ico {
      width: 46px; height: 46px; border: 1px solid var(--brass); border-radius: 6px;
      display: grid; place-items: center; margin-bottom: 14px; color: var(--wood);
    }
    .craft-card h3 { font-size: 20px; margin-bottom: 8px; }
    .craft-card p { font-size: 15px; color: #534b43; margin: 0; }
    #plans { background: #efe8dc; }
    .plan-board { display: grid; grid-template-columns: 1.3fr 0.85fr; gap: 16px; }
    .plan-big, .plan-small {
      background: var(--card); border-radius: 10px; overflow: hidden; border: 1px solid var(--line);
      display: grid; grid-template-columns: 1.1fr 0.9fr; min-height: 280px; transition: 0.22s ease;
    }
    .plan-big:hover, .plan-small:hover { transform: translateY(-3px); border-color: var(--brass); }
    .plan-stack { display: grid; gap: 16px; }
    .plan-small { grid-template-columns: 0.9fr 1.1fr; min-height: 210px; }
    .plan-cover { position: relative; }
    .plan-cover img { width: 100%; height: 100%; object-fit: cover; min-height: 210px; }
    .plan-no {
      position: absolute; top: 12px; left: 12px; background: var(--asphalt); color: var(--brass);
      font-family: var(--serif); padding: 4px 10px;
    }
    .plan-body { padding: 22px 20px; }
    .plan-body h3 { font-size: 24px; margin: 8px 0 10px; }
    .plan-body li { position: relative; padding-left: 14px; margin-bottom: 6px; font-size: 15px; color: #4f4740; }
    .plan-body li::before { content: ""; width: 6px; height: 6px; background: var(--brass); position: absolute; left: 0; top: 0.7em; }
    #scenes { background: #fffdf9; }
    .scene-tabs { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 22px; }
    .scene-tabs button {
      min-height: 44px; padding: 0 16px; border-radius: 4px; border: 1px solid var(--line);
      background: #fff; color: var(--ink); cursor: pointer; font-size: 14px;
    }
    .scene-tabs button.on, .scene-tabs button:hover { background: var(--wood); color: #f6efe4; border-color: var(--wood); }
    .scene-rows { display: grid; gap: 12px; }
    .scene-row {
      display: grid; grid-template-columns: 160px 1fr 120px; gap: 18px; align-items: center;
      background: var(--card); border: 1px solid var(--line); padding: 16px 18px; border-radius: 8px;
    }
    .scene-row h3 { font-size: 18px; }
    .scene-row p { margin: 0; font-size: 15px; color: #524a43; }
    #demo { background: var(--plaster); }
    .demo-alt { display: grid; gap: 48px; }
    .demo-item { display: grid; grid-template-columns: 1.15fr 0.85fr; gap: 36px; align-items: center; }
    .demo-item.reverse { grid-template-columns: 0.85fr 1.15fr; }
    .demo-item.reverse .demo-copy { order: -1; }
    .demo-item img { width: 100%; height: 380px; object-fit: cover; border-radius: 4px; }
    .compare {
      display: grid; grid-template-columns: 1fr 1fr; gap: 8px;
    }
    .compare span {
      display: block; font-size: 12px; letter-spacing: 0.08em; color: var(--cement); margin-bottom: 6px;
    }
    #cases { background: var(--asphalt); color: #efe6d6; }
    #cases h2, #cases h3 { color: #f7f0e4; }
    #cases .sec-head p { color: #d9cdb8; }
    .case-list { display: grid; gap: 22px; }
    .case-item {
      display: grid; grid-template-columns: 1.1fr 1fr; gap: 28px; align-items: center;
      border-top: 1px solid rgba(196,165,116,0.25); padding-top: 28px;
    }
    .case-item:nth-child(even) { direction: rtl; }
    .case-item:nth-child(even) > * { direction: ltr; }
    .case-item img { width: 100%; height: 280px; object-fit: cover; border-radius: 4px; }
    .case-meta { display: flex; gap: 10px; flex-wrap: wrap; margin: 10px 0 12px; }
    .case-meta span { border: 1px solid rgba(196,165,116,0.4); color: var(--brass); padding: 2px 8px; font-size: 12px; }
    #process { background: #fffdf9; }
    .flow {
      display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px;
    }
    .flow li {
      border: 1px solid var(--line); padding: 18px 16px; background: var(--card); border-radius: 8px; min-height: 168px;
    }
    .flow em { display: block; font-style: normal; color: var(--terracotta); font-family: var(--serif); font-size: 22px; }
    .flow h3 { font-size: 18px; margin: 6px 0 8px; }
    .flow p { margin: 0; font-size: 14px; color: #534b43; }
    #materials { background: #efe8dc; }
    .swatch-wrap { display: grid; gap: 10px; }
    .swatch {
      display: grid; grid-template-columns: 92px 160px 1fr; gap: 16px; align-items: center;
      background: #fffdf9; border: 1px solid var(--line); padding: 12px 14px; border-radius: 8px;
    }
    .chip-bar { height: 54px; display: grid; grid-template-columns: repeat(4, 1fr); overflow: hidden; border-radius: 4px; }
    .chip-bar i { display: block; }
    #pricing { background: var(--plaster); }
    .price-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
    .price-card {
      background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 26px 22px;
      box-shadow: var(--warm-shadow);
    }
    .price-card.featured { border: 1px solid var(--brass); transform: translateY(-8px); }
    .price { font-family: var(--serif); font-size: 36px; color: var(--wood); margin: 8px 0 4px; }
    .price small { font-size: 15px; color: var(--cement); }
    .price-card ul { margin: 14px 0 18px; }
    .price-card li { font-size: 14px; padding: 6px 0; border-bottom: 1px dashed var(--line); }
    .muted { color: #6d655d; font-size: 13px; }
    #stories { background: #fffdf9; }
    .story-line { display: grid; gap: 28px; }
    .story {
      display: grid; grid-template-columns: 280px 1fr; gap: 28px; align-items: center;
      border-left: 2px solid var(--brass); padding-left: 22px;
    }
    .story img { width: 100%; height: 190px; object-fit: cover; border-radius: 8px; }
    .story h3 { font-size: 22px; margin-bottom: 8px; }
    #stats { background: var(--wood); padding: 42px 0; }
    .stat-bar { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; color: #f7efe3; text-align: center; }
    .stat-bar strong { display: block; font-family: var(--serif); font-size: 40px; color: #f0d2b4; }
    .stat-bar span { color: #e5d4bc; font-size: 14px; }
    #reviews { background: var(--plaster); }
    .review-wall {
      columns: 3; column-gap: 16px;
    }
    .review {
      break-inside: avoid; margin-bottom: 16px; background: var(--card);
      border: 1px solid var(--line); border-radius: 10px; padding: 18px; box-shadow: var(--warm-shadow);
    }
    .review p { margin: 10px 0 0; font-size: 15px; }
    #reputation { background: var(--asphalt); color: #efe6d6; }
    .quote-grid { display: grid; grid-template-columns: 1.2fr 0.8fr; gap: 36px; align-items: center; }
    .quote-mark { font-family: var(--serif); font-size: 88px; line-height: 0.7; color: var(--brass); }
    blockquote { margin: 0; font-size: 28px; line-height: 1.5; font-family: var(--serif); color: #f7f0e4; }
    .quote-grid img { width: 100%; height: 360px; object-fit: cover; border-radius: 4px; }
    cite { display: block; margin-top: 16px; color: var(--brass); font-style: normal; }
    #news { background: #fffdf9; }
    .news-top { display: flex; justify-content: space-between; align-items: end; gap: 16px; margin-bottom: 28px; }
    .news-grid { display: grid; grid-template-columns: 1.2fr 1fr 1fr; gap: 16px; }
    .news-card { background: var(--card); border: 1px solid var(--line); border-radius: 10px; overflow: hidden; }
    .news-card img { width: 100%; height: 180px; object-fit: cover; }
    .news-card.wide { grid-row: span 2; }
    .news-card.wide img { height: 250px; }
    .news-card div { padding: 16px 18px 18px; }
    .news-card h3 { font-size: 20px; margin: 8px 0; }
    .news-card p { font-size: 15px; color: #524a43; margin: 0; }
    #faq { background: #efe8dc; }
    .faq-item { background: #fffdf9; border: 1px solid var(--line); border-radius: 8px; margin-bottom: 10px; }
    .faq-item button {
      width: 100%; text-align: left; background: none; border: 0; min-height: 56px;
      padding: 14px 18px; font-size: 16px; font-weight: 600; cursor: pointer; color: var(--ink);
    }
    .faq-item .ans { display: none; padding: 0 18px 16px; color: #514940; line-height: 1.85; }
    .faq-item.open .ans { display: block; }
    #booking {
      background: linear-gradient(120deg, rgba(22,20,18,0.82), rgba(92,58,33,0.55)), url("/assets/images/1a4345ed7e24a07f.jpg") center/cover;
      color: #f6efe4;
    }
    #booking h2 { color: #f7f0e4; }
    .cta-grid { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 40px; align-items: start; }
    .book-form {
      background: rgba(255,251,246,0.96); color: var(--ink); padding: 24px; border-radius: 10px;
      border-top: 3px solid var(--brass);
    }
    .form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
    label { display: block; font-size: 13px; margin-bottom: 4px; color: #5a524a; }
    input, select {
      width: 100%; min-height: 44px; border: 1px solid var(--line); border-radius: 5px;
      padding: 0 12px; background: #fff; font-size: 15px;
    }
    .form-full { grid-column: 1 / -1; }
    .form-msg { min-height: 24px; font-size: 14px; color: var(--terracotta); margin: 8px 0 0; }
    .site-footer { background: #120f0d; color: #d8cdb8; padding: 56px 0 24px; font-size: 14px; }
    .foot-grid { display: grid; grid-template-columns: 1.3fr 1fr 1fr 1.2fr; gap: 28px; }
    .site-footer h3 { color: #f3eadc; font-size: 16px; margin-bottom: 12px; }
    .site-footer a:hover { color: var(--brass); }
    .foot-copy { margin-top: 28px; padding-top: 16px; border-top: 1px solid rgba(196,165,116,0.18); color: #a89c8b; }
    @media (max-width: 1280px) {
      .hero-copy h1 { font-size: 40px; }
    }
    @media (max-width: 1024px) {
      .hero-stack, .intro-grid, .plan-board, .demo-item, .demo-item.reverse, .case-item, .quote-grid, .cta-grid, .news-grid, .price-grid, .flow, .stat-bar, .foot-grid {
        grid-template-columns: 1fr;
      }
      .demo-item.reverse .demo-copy { order: 0; }
      .case-item:nth-child(even) { direction: ltr; }
      .plan-big, .plan-small { grid-template-columns: 1fr; }
      .nav-links, .nav-cta { display: none; }
      .burger { display: grid; place-items: center; width: 44px; height: 44px; margin-left: auto; border: 1px solid var(--wood); background: transparent; cursor: pointer; }
      .burger span, .burger span::before, .burger span::after {
        display: block; width: 18px; height: 2px; background: var(--wood); position: relative;
      }
      .burger span::before, .burger span::after { content: ""; position: absolute; left: 0; }
      .burger span::before { top: -6px; } .burger span::after { top: 6px; }
      .drawer {
        display: block; position: fixed; inset: 0 0 0 auto; width: min(86vw, 360px);
        background: #fffaf3; z-index: 70; transform: translateX(100%); transition: 0.28s ease;
        padding: 24px; overflow: auto;
      }
      .drawer.open { transform: none; }
      .drawer a, .drawer .btn { display: flex; min-height: 44px; align-items: center; }
      .backdrop { display: none; position: fixed; inset: 0; background: rgba(18,15,13,0.45); z-index: 60; }
      .backdrop.show { display: block; }
      .review-wall { columns: 2; }
      .calendar-band, .calendar-list, .scene-row, .swatch, .story { grid-template-columns: 1fr; }
      .hero-main { min-height: 520px; }
      .side-a, .side-b { transform: none; }
    }
    @media (max-width: 768px) {
      .sec { padding: 64px 0; }
      .container { width: min(100% - 32px, var(--container)); }
      .toolbar-right { display: none; }
      .hero-copy { padding: 28px 22px; }
      .hero-copy h1 { font-size: 32px; }
      .sec-head h2 { font-size: 28px; }
      .craft-grid { grid-template-columns: 1fr 1fr; }
      .news-grid { grid-template-columns: 1fr; }
      .form-grid { grid-template-columns: 1fr; }
      blockquote { font-size: 22px; }
    }
    @media (max-width: 520px) {
      body { font-size: 16px; }
      .craft-grid, .review-wall, .stat-bar { grid-template-columns: 1fr; columns: 1; }
      .hero-main { min-height: 480px; }
      .price { font-size: 30px; }
      .price-card.featured { transform: none; }
    }
    @media (hover: none) {
      .craft-card:hover, .plan-big:hover, .plan-small:hover { transform: none; }
    }

/* roulang page: index */
:root {
      --wood: #5C3A21;
      --wood-deep: #432815;
      --brass: #B08D57;
      --brass-soft: #c9ae7a;
      --cement: #8A8478;
      --gypsum: #F3EEE6;
      --stone: #E7E0D6;
      --char: #2A2623;
      --ink: #1C1917;
      --paper: #FBFAF7;
      --white: #FFFdf8;
      --muted: #6B645C;
      --line: rgba(92, 58, 33, .16);
      --copper: #3F6F64;
      --warn: #A45A38;
      --radius: 10px;
      --radius-s: 6px;
      --shadow: 0 8px 24px rgba(28, 25, 23, .08);
      --space: 28px;
      --container: 1240px;
      --header-offset: 118px;
      --ease: .22s ease;
    }
    *, *::before, *::after { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    body {
      margin: 0;
      color: var(--ink);
      background: var(--gypsum);
      font-family: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
      font-size: 17px;
      line-height: 1.8;
      overflow-x: hidden;
    }
    img { max-width: 100%; display: block; height: auto; }
    a { color: inherit; text-decoration: none; }
    button, input, select, textarea { font-family: inherit; }
    button { cursor: pointer; }
    h1, h2, h3 { margin: 0; font-weight: 700; line-height: 1.28; letter-spacing: .02em; }
    p { margin: 0 0 .95em; }
    p:last-child { margin-bottom: 0; }
    ul, ol { margin: 0; padding: 0; }
    :focus-visible { outline: 2px solid var(--copper); outline-offset: 3px; }
    .container { width: min(100% - 40px, var(--container)); margin: 0 auto; }
    .skip {
      position: absolute; left: -999px; top: 0;
    }
    .skip:focus { left: 16px; top: 16px; background: #fff; padding: 8px 12px; z-index: 80; }
    .site-header { position: relative; z-index: 50; }
    .topbar {
      background: var(--stone);
      border-bottom: 1px solid var(--line);
    }
    .topbar-inner {
      min-height: 44px;
      display: grid;
      grid-template-columns: 1fr auto 1fr;
      align-items: center;
      gap: 16px;
      padding: 8px 0;
      font-size: 13px;
      color: var(--muted);
    }
    .brand-tag { color: var(--wood); font-weight: 600; }
    .top-contact { display: flex; gap: 18px; align-items: center; white-space: nowrap; }
    .top-contact a { color: var(--ink); font-weight: 600; }
    .topbar-inner .btn { justify-self: end; }
    .nav-main {
      background: rgba(255, 253, 248, .96);
      border-bottom: 1px solid var(--line);
      backdrop-filter: blur(8px);
    }
    .nav-main.is-stuck {
      position: sticky;
      top: 0;
      box-shadow: var(--shadow);
    }
    .nav-inner {
      min-height: 72px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 20px;
    }
    .logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-weight: 700;
      font-size: 20px;
      color: var(--wood);
      min-height: 44px;
    }
    .logo-mark {
      width: 28px; height: 28px;
      border-radius: 4px;
      background:
        linear-gradient(135deg, var(--brass) 0 8px, transparent 8px),
        linear-gradient(180deg, var(--wood) 0%, #7a4d2c 100%);
      box-shadow: inset 0 0 0 1px rgba(176, 141, 87, .5);
      flex: 0 0 auto;
    }
    .menu {
      display: flex;
      flex-wrap: wrap;
      gap: 4px 6px;
      list-style: none;
    }
    .menu a {
      display: inline-flex;
      align-items: center;
      min-height: 44px;
      padding: 0 10px;
      color: var(--ink);
      font-size: 14px;
      font-weight: 500;
      border-radius: var(--radius-s);
      transition: color var(--ease), background var(--ease);
    }
    .menu a:hover, .menu a.is-active { color: var(--wood); background: var(--stone); }
    .nav-toggle {
      display: none;
      width: 44px; height: 44px;
      border: 1px solid var(--line);
      background: var(--white);
      border-radius: var(--radius-s);
      padding: 0;
      position: relative;
    }
    .nav-toggle span, .nav-toggle span::before, .nav-toggle span::after {
      content: "";
      display: block;
      width: 18px; height: 2px;
      background: var(--wood);
      position: absolute; left: 12px;
    }
    .nav-toggle span { top: 21px; }
    .nav-toggle span::before { top: -6px; }
    .nav-toggle span::after { top: 6px; }
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 44px;
      padding: 0 18px;
      border-radius: var(--radius-s);
      border: 1px solid transparent;
      font-weight: 600;
      font-size: 14px;
      letter-spacing: .04em;
      transition: transform var(--ease), background var(--ease), border-color var(--ease), color var(--ease);
    }
    .btn:hover { transform: translateY(-2px); }
    .btn:active { transform: translateY(0); }
    .btn-primary { background: var(--wood); color: var(--gypsum); }
    .btn-primary:hover, .btn-primary:active { background: var(--wood-deep); }
    .btn-ghost { background: transparent; color: var(--brass); border-color: var(--brass); }
    .btn-ghost:hover { background: rgba(176, 141, 87, .1); }
    .btn-copper { background: var(--copper); color: #f4f7f6; }
    .btn-copper:hover { background: #335b52; }
    .btn-light { background: var(--gypsum); color: var(--wood); }
    main { display: block; }
    .section { padding: 88px 0; position: relative; }
    .section-stone { background: var(--stone); }
    .section-gypsum { background: var(--gypsum); }
    .section-paper { background: var(--paper); }
    .section-char { background: var(--char); color: #f3eee6; }
    .kicker {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      color: var(--brass);
      font-size: 13px;
      font-weight: 600;
      letter-spacing: .12em;
      margin-bottom: 10px;
    }
    .kicker::before {
      content: "";
      width: 18px; height: 2px;
      background: var(--brass);
    }
    .section h2 { font-size: clamp(24px, 3vw, 34px); margin-bottom: 12px; }
    .lead { max-width: 760px; color: var(--muted); font-size: 16px; }
    .section-char .lead { color: rgba(243, 238, 230, .78); }
    .hero {
      position: relative;
      min-height: min(88vh, 820px);
      background: var(--char);
      overflow: hidden;
    }
    .hero::after {
      content: "";
      position: absolute; inset: 0;
      background:
        repeating-linear-gradient(90deg, rgba(176,141,87,.05) 0 1px, transparent 1px 48px),
        repeating-linear-gradient(0deg, rgba(243,238,230,.04) 0 1px, transparent 1px 48px);
      pointer-events: none;
      z-index: 2;
    }
    .slides { position: absolute; inset: 0; }
    .slide {
      position: absolute; inset: 0;
      opacity: 0;
      transition: opacity .6s ease;
    }
    .slide.is-active { opacity: 1; z-index: 1; }
    .slide img {
      width: 100%; height: 100%; object-fit: cover;
      filter: saturate(.86) contrast(1.05);
    }
    .slide::after {
      content: "";
      position: absolute; inset: 0;
      background:
        linear-gradient(90deg, rgba(28,25,23,.72) 0%, rgba(28,25,23,.38) 48%, rgba(28,25,23,.18) 100%),
        linear-gradient(0deg, rgba(28,25,23,.55) 0%, transparent 42%);
    }
    .hero-stage {
      position: relative;
      z-index: 3;
      min-height: min(88vh, 820px);
      display: grid;
      align-items: end;
      padding: 48px 0 56px;
    }
    .hero-grid {
      display: grid;
      grid-template-columns: minmax(0, 1.15fr) minmax(280px, .85fr);
      gap: 28px;
      align-items: end;
    }
    .hero-card, .side-card {
      background: rgba(243, 238, 230, .92);
      border: 1px solid rgba(176, 141, 87, .35);
      border-radius: var(--radius);
      box-shadow: var(--shadow);
    }
    .hero-card { padding: 28px 28px 24px; }
    .hero-card h1, .slide-title {
      font-size: clamp(28px, 4vw, 44px);
      color: var(--ink);
      margin-bottom: 12px;
    }
    .hero-card .hero-copy { color: var(--muted); font-size: 16px; max-width: 58ch; }
    .hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 22px; }
    .hero-stack {
      display: grid;
      gap: 14px;
      transform: translateY(-18px);
    }
    .side-card { padding: 18px 18px 16px; }
    .side-card:nth-child(2) { margin-left: 28px; }
    .side-card strong { display: block; font-size: 28px; color: var(--wood); font-variant-numeric: tabular-nums; }
    .side-card span { color: var(--muted); font-size: 13px; }
    .hero-controls {
      position: absolute; z-index: 4;
      left: 0; right: 0; bottom: 18px;
      display: flex; justify-content: space-between; align-items: center;
      width: min(100% - 40px, var(--container));
      margin: 0 auto;
    }
    .dots { display: flex; gap: 8px; }
    .dot {
      width: 28px; height: 4px; border: 0; padding: 0;
      background: rgba(243,238,230,.35);
      min-height: 4px;
    }
    .dot.is-active { background: var(--brass); }
    .arrows { display: flex; gap: 8px; }
    .arrow {
      width: 44px; height: 44px; border-radius: 4px;
      border: 1px solid rgba(243,238,230,.35);
      background: rgba(42,38,35,.45);
      color: var(--gypsum);
      font-size: 18px;
    }
    .arrow:hover { background: var(--wood); }
    .split {
      display: grid;
      grid-template-columns: 1.05fr .95fr;
      gap: 40px;
      align-items: center;
    }
    .media {
      border-radius: var(--radius);
      overflow: hidden;
      box-shadow: var(--shadow);
      position: relative;
    }
    .media img { width: 100%; height: 100%; object-fit: cover; min-height: 360px; }
    .check-list { list-style: none; margin-top: 18px; display: grid; gap: 10px; }
    .check-list li {
      padding-left: 22px;
      position: relative;
      color: var(--ink);
    }
    .check-list li::before {
      content: "";
      width: 8px; height: 8px;
      border: 2px solid var(--brass);
      position: absolute; left: 0; top: .55em;
    }
    .spec {
      margin-top: 20px;
      padding: 16px 18px;
      background: var(--stone);
      border-left: 4px solid var(--wood);
      border-radius: 0 var(--radius-s) var(--radius-s) 0;
      font-size: 15px;
    }
    .ability-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
      margin-top: 36px;
    }
    .ability-card {
      background: var(--white);
      border: 1px solid transparent;
      border-radius: var(--radius);
      box-shadow: var(--shadow);
      padding: 22px 22px 20px;
      position: relative;
      overflow: hidden;
      transition: transform var(--ease), border-color var(--ease);
    }
    .ability-card::before {
      content: "";
      position: absolute; left: 0; right: 0; top: 0; height: 4px;
      background: var(--wood);
    }
    .ability-card.accent::before { background: var(--brass); }
    .ability-card.copper::before { background: var(--copper); }
    .ability-card.wide { grid-column: span 2; }
    .ability-card:hover { transform: translateY(-4px); border-color: var(--brass); }
    .ability-card h3 { font-size: 20px; margin: 8px 0 10px; }
    .ability-card p { color: var(--muted); font-size: 15px; }
    .icon-box {
      width: 36px; height: 36px;
      border-radius: 4px;
      background: var(--stone);
      display: grid; place-items: center;
    }
    .icon-box svg { width: 18px; height: 18px; stroke: var(--wood); fill: none; stroke-width: 1.7; }
    .hot-grid {
      display: grid;
      grid-template-columns: 1.25fr .85fr;
      grid-template-rows: auto auto;
      gap: 24px;
      margin-top: 36px;
    }
    .hot-card {
      background: var(--white);
      border-radius: var(--radius);
      overflow: hidden;
      box-shadow: var(--shadow);
      display: grid;
      transition: transform var(--ease), border-color var(--ease);
      border: 1px solid transparent;
    }
    .hot-card:hover { transform: translateY(-3px); border-color: var(--brass); }
    .hot-card.large { grid-row: span 2; }
    .hot-card img { width: 100%; height: 180px; object-fit: cover; }
    .hot-card.large img { height: 280px; }
    .hot-body { padding: 18px 20px 20px; }
    .meta-row { display: flex; flex-wrap: wrap; gap: 8px; margin: 10px 0 14px; }
    .badge {
      display: inline-flex; align-items: center;
      min-height: 28px; padding: 0 10px;
      border-radius: 4px; font-size: 12px; font-weight: 600;
      background: var(--stone); color: var(--wood);
    }
    .badge-green { background: rgba(63,111,100,.12); color: var(--copper); }
    .scene-track {
      display: grid;
      grid-auto-flow: column;
      grid-auto-columns: minmax(280px, 32%);
      gap: 20px;
      overflow-x: auto;
      scroll-snap-type: x mandatory;
      padding: 8px 2px 18px;
      margin-top: 28px;
    }
    .scene-card {
      scroll-snap-align: start;
      background: var(--white);
      border-radius: var(--radius);
      overflow: hidden;
      box-shadow: var(--shadow);
      min-height: 360px;
      display: flex; flex-direction: column;
    }
    .scene-card:nth-child(even) { margin-top: 28px; }
    .scene-card img { height: 170px; width: 100%; object-fit: cover; }
    .scene-card .hot-body { flex: 1; }
    .scene-card h3 { font-size: 18px; margin-bottom: 8px; }
    .compare {
      display: grid;
      grid-template-columns: 1.1fr .9fr;
      gap: 28px;
      align-items: start;
    }
    .ba-wrap { position: relative; border-radius: var(--radius); overflow: hidden; min-height: 420px; }
    .ba-wrap img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
    .ba-wrap .after { clip-path: inset(0 0 0 52%); }
    .ba-range {
      position: absolute; left: 0; right: 0; bottom: 16px; width: 70%;
      margin: 0 auto; display: block; z-index: 2; accent-color: var(--brass);
    }
    .timeline { list-style: none; display: grid; gap: 16px; }
    .timeline li {
      display: grid; grid-template-columns: 88px 1fr;
      gap: 14px; padding-bottom: 14px;
      border-bottom: 1px dashed var(--line);
    }
    .timeline b { color: var(--wood); font-size: 14px; }
    .principle {
      display: grid;
      grid-template-columns: 1.15fr .85fr;
      gap: 40px;
      align-items: center;
    }
    .principle img { width: 100%; height: 460px; object-fit: cover; border-radius: var(--radius); }
    .principle ol { list-style: none; display: grid; gap: 16px; margin-top: 18px; }
    .principle li {
      padding: 14px 16px;
      border: 1px solid rgba(176,141,87,.28);
      border-radius: var(--radius-s);
      background: rgba(28,25,23,.28);
    }
    .principle li strong { display: block; color: var(--brass-soft); margin-bottom: 4px; }
    .cases-grid {
      display: grid;
      grid-template-columns: 1.35fr .9fr;
      gap: 24px;
      margin-top: 32px;
    }
    .case-main, .case-item {
      background: var(--white);
      border-radius: var(--radius);
      overflow: hidden;
      box-shadow: var(--shadow);
    }
    .case-main img { width: 100%; height: 360px; object-fit: cover; }
    .case-list { display: grid; gap: 14px; }
    .case-item { display: grid; grid-template-columns: 120px 1fr; min-height: 108px; }
    .case-item img { width: 120px; height: 100%; object-fit: cover; }
    .pad { padding: 16px 18px; }
    .price-layout {
      display: grid;
      grid-template-columns: .9fr 1.1fr;
      gap: 28px;
      margin-top: 32px;
      align-items: stretch;
    }
    .price-note {
      background: var(--white);
      border-radius: var(--radius);
      box-shadow: var(--shadow);
      padding: 24px;
    }
    .price-note h3 { margin-bottom: 10px; font-size: 20px; }
    .tiers {
      display: grid;
      grid-template-columns: 1fr 1.08fr 1fr;
      gap: 16px;
      align-items: stretch;
    }
    .tier {
      background: var(--white);
      border: 1px solid var(--line);
      border-radius: var(--radius);
      padding: 22px 18px 18px;
      position: relative;
      display: flex; flex-direction: column;
      gap: 8px;
    }
    .tier.featured {
      border: 2px solid var(--brass);
      transform: translateY(-12px);
      box-shadow: var(--shadow);
    }
    .corner {
      position: absolute; top: 12px; right: 12px;
      background: var(--wood); color: var(--gypsum);
      font-size: 12px; padding: 4px 8px; border-radius: 4px;
    }
    .tier .num { font-size: 30px; color: var(--wood); font-weight: 700; }
    .tier ul { list-style: none; font-size: 14px; color: var(--muted); display: grid; gap: 6px; margin: 8px 0 14px; }
    .story {
      display: grid;
      grid-template-columns: 220px 1fr;
      gap: 24px;
      background: var(--white);
      border-radius: var(--radius);
      box-shadow: var(--shadow);
      overflow: hidden;
      margin-top: 22px;
    }
    .story img { width: 100%; height: 100%; object-fit: cover; min-height: 220px; }
    .stats {
      background:
        linear-gradient(90deg, rgba(92,58,33,.08), rgba(176,141,87,.12)),
        var(--stone);
      padding: 42px 0;
    }
    .stats-grid {
      display: grid;
      grid-template-columns: repeat(5, 1fr);
      gap: 18px;
    }
    .stat { text-align: left; }
    .stat b {
      display: block;
      font-size: 34px;
      color: var(--wood);
      font-variant-numeric: tabular-nums;
      line-height: 1.1;
    }
    .stat span { color: var(--muted); font-size: 13px; }
    .wall {
      columns: 3;
      column-gap: 18px;
      margin-top: 28px;
    }
    .quote {
      break-inside: avoid;
      background: var(--white);
      box-shadow: var(--shadow);
      border-radius: var(--radius);
      padding: 16px 16px 14px;
      margin-bottom: 18px;
    }
    .quote p { color: var(--ink); font-size: 15px; }
    .stars { color: var(--brass); letter-spacing: 2px; font-size: 13px; margin-bottom: 6px; }
    .logos {
      display: grid;
      grid-template-columns: repeat(6, 1fr);
      gap: 12px;
      margin: 24px 0;
    }
    .logo-chip {
      min-height: 64px;
      display: grid; place-items: center;
      background: var(--white);
      border: 1px solid var(--line);
      border-radius: 8px;
      font-weight: 700;
      color: var(--wood);
      font-size: 13px;
      text-align: center;
      padding: 8px;
    }
    .revisit { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
    .revisit article {
      background: var(--white);
      border-radius: var(--radius);
      padding: 16px 18px;
      border-left: 4px solid var(--copper);
    }
    .news-grid {
      display: grid;
      grid-template-columns: 1.2fr 1fr 1fr;
      gap: 20px;
      margin-top: 28px;
    }
    .news-card {
      background: var(--white);
      border-radius: var(--radius);
      overflow: hidden;
      box-shadow: var(--shadow);
      display: flex; flex-direction: column;
    }
    .news-card img { height: 170px; object-fit: cover; width: 100%; }
    .news-card.feature { grid-row: span 1; }
    .tag { font-size: 12px; color: var(--copper); font-weight: 600; }
    .faq-list { margin-top: 24px; border-top: 1px solid var(--line); }
    .faq-item { border-bottom: 1px solid var(--line); }
    .faq-item button {
      width: 100%;
      min-height: 56px;
      text-align: left;
      background: transparent;
      border: 0;
      padding: 14px 8px;
      font-size: 16px;
      font-weight: 600;
      color: var(--ink);
      display: flex; justify-content: space-between; gap: 16px;
    }
    .faq-item button::after { content: "+"; color: var(--brass); font-size: 22px; }
    .faq-item.is-open button::after { content: "–"; }
    .faq-item .ans {
      display: none;
      background: var(--gypsum);
      padding: 4px 12px 16px;
      color: var(--muted);
    }
    .faq-item.is-open .ans { display: block; }
    .cta {
      background:
        linear-gradient(90deg, rgba(42,38,35,.88), rgba(92,58,33,.72)),
        url("/assets/images/9c7b8d2797148a04.jpg") center/cover;
      color: #f6f1e8;
      padding: 72px 0;
    }
    .cta-grid {
      display: grid;
      grid-template-columns: .9fr 1.1fr;
      gap: 32px;
      align-items: start;
    }
    form {
      background: rgba(255,253,248,.96);
      color: var(--ink);
      padding: 22px;
      border-radius: var(--radius);
    }
    .form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
    label { display: block; font-size: 13px; font-weight: 600; margin-bottom: 6px; }
    input, select {
      width: 100%;
      min-height: 44px;
      border: 1px solid var(--line);
      border-radius: 6px;
      padding: 0 12px;
      background: #fff;
      color: var(--ink);
    }
    input:focus, select:focus { border-color: var(--copper); outline: none; box-shadow: 0 0 0 3px rgba(63,111,100,.18); }
    .form-grid .full { grid-column: 1 / -1; }
    .form-msg { display: none; margin-top: 10px; font-size: 14px; }
    .form-msg.ok { display: block; color: var(--copper); }
    .form-msg.err { display: block; color: var(--warn); }
    .site-footer {
      background: var(--char);
      color: #d9d2c7;
      padding: 48px 0 20px;
      font-size: 14px;
    }
    .foot-grid {
      display: grid;
      grid-template-columns: 1.3fr 1fr 1fr 1fr;
      gap: 28px;
      margin-bottom: 28px;
    }
    .site-footer a:hover { color: var(--brass-soft); }
    .foot-title { color: #f3eee6; font-weight: 700; margin-bottom: 10px; }
    .foot-links { list-style: none; display: grid; gap: 8px; }
    .copy {
      border-top: 1px solid rgba(243,238,230,.12);
      padding-top: 16px;
      color: #9c958c;
      display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap;
    }
    .material-grid, .check-grid {
      display: grid;
      grid-template-columns: 1fr 1fr 1fr;
      gap: 20px;
      margin-top: 28px;
    }
    .panel {
      background: var(--white);
      border-radius: var(--radius);
      padding: 18px;
      box-shadow: var(--shadow);
    }
    .panel h3 { font-size: 18px; margin-bottom: 8px; }
    @media (max-width: 1280px) {
      .ability-card.wide { grid-column: span 1; }
      .hot-grid { grid-template-columns: 1fr 1fr; }
      .hot-card.large { grid-row: auto; }
    }
    @media (max-width: 1024px) {
      .section { padding: 64px 0; }
      .topbar-inner { grid-template-columns: auto 1fr auto; }
      .hero-grid, .split, .compare, .principle, .cases-grid, .price-layout, .cta-grid, .foot-grid {
        grid-template-columns: 1fr;
      }
      .stats-grid { grid-template-columns: repeat(3, 1fr); }
      .wall { columns: 2; }
      .news-grid, .material-grid, .check-grid, .tiers { grid-template-columns: 1fr 1fr; }
      .tier.featured { transform: none; }
      .hero-stack { transform: none; }
      .side-card:nth-child(2) { margin-left: 0; }
      .menu { display: none; }
      .nav-toggle { display: inline-block; }
      .menu.is-open {
        display: flex;
        flex-direction: column;
        position: absolute;
        left: 0; right: 0;
        background: var(--white);
        border-bottom: 1px solid var(--line);
        padding: 8px 20px 16px;
        box-shadow: var(--shadow);
      }
      .nav-main { position: relative; }
      .hot-card.large img, .media img, .case-main img { height: 240px; min-height: 240px; }
    }
    @media (max-width: 768px) {
      body { font-size: 16px; }
      .section { padding: 48px 0; }
      .brand-tag, .hours { display: none; }
      .topbar-inner { grid-template-columns: 1fr auto; }
      .ability-grid, .hot-grid, .news-grid, .material-grid, .check-grid, .tiers, .revisit, .stats-grid, .form-grid {
        grid-template-columns: 1fr;
      }
      .wall { columns: 1; }
      .story, .case-item { grid-template-columns: 1fr; }
      .story img, .case-item img { height: 180px; width: 100%; }
      .scene-track { grid-auto-columns: 84%; }
      .scene-card:nth-child(even) { margin-top: 0; }
      .arrows { display: none; }
      .hero-card { padding: 20px 18px; }
      .ba-wrap { min-height: 280px; }
      .principle img { height: 240px; }
      .logos { grid-template-columns: repeat(3, 1fr); }
    }
    @media (max-width: 375px) {
      .container { width: min(100% - 24px, var(--container)); }
      .logo { font-size: 16px; }
      .hero-card h1, .slide-title { font-size: 24px; }
    }