/* roulang page: index */
:root {
      --c-primary: #2E4A43;
      --c-primary-deep: #223832;
      --c-primary-mid: #3c5e55;
      --c-accent: #C45C26;
      --c-accent-deep: #a34b1e;
      --c-accent-soft: #e8c4ae;
      --c-bg: #F4F0E8;
      --c-card: #FFFDF9;
      --c-rock: #E7E1D6;
      --c-dark: #1A1714;
      --c-cream: #F3EEE6;
      --c-text: #2A2622;
      --c-muted: #6B645C;
      --c-line: #D8D1C6;
      --c-ok: #4D6B5E;
      --c-warn: #A24B3A;
      --radius: 10px;
      --radius-sm: 6px;
      --radius-xs: 4px;
      --shadow: 0 8px 24px rgba(26, 23, 20, 0.06);
      --shadow-soft: 0 2px 8px rgba(26, 23, 20, 0.04);
      --container: 1240px;
      --gutter: 24px;
      --header-top: 42px;
      --header-main: 66px;
      --font-serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", "STSong", "SimSun", serif;
      --font-sans: "PingFang SC", "Hiragino Sans GB", "Noto Sans SC", "Microsoft YaHei", sans-serif;
      --space-section: 108px;
      --focus: 2px solid #C45C26;
    }
    *, *::before, *::after { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    html, body { margin: 0; padding: 0; }
    body {
      font-family: var(--font-sans);
      font-size: 17px;
      line-height: 1.8;
      color: var(--c-text);
      background: var(--c-bg);
      -webkit-font-smoothing: antialiased;
      overflow-x: hidden;
    }
    img { max-width: 100%; height: auto; display: block; border: 0; }
    a { color: var(--c-primary); text-decoration: none; }
    a:hover { color: var(--c-accent); }
    button, input, select, textarea { font-family: inherit; font-size: inherit; }
    button { cursor: pointer; }
    h1, h2, h3, h4 { font-family: var(--font-serif); font-weight: 600; letter-spacing: 0; color: var(--c-primary); margin: 0; }
    h1 { font-size: clamp(28px, 4vw, 46px); line-height: 1.28; color: var(--c-cream); }
    h2 { font-size: clamp(24px, 3vw, 34px); line-height: 1.3; margin-bottom: 14px; }
    h3 { font-size: 18px; line-height: 1.4; }
    p { margin: 0 0 0.85em; }
    p:last-child { margin-bottom: 0; }
    ul, ol { margin: 0; padding: 0; }
    .nowrap { white-space: nowrap; }
    :focus-visible { outline: var(--focus); outline-offset: 3px; }
    ::selection { background: #c45c26; color: #fffdf9; }
    .skip-link {
      position: absolute; left: 12px; top: -48px; z-index: 2000;
      background: var(--c-accent); color: #fff; padding: 10px 16px;
      border-radius: var(--radius-xs); min-height: 44px;
    }
    .skip-link:focus { top: 12px; color: #fff; }
    .container { width: min(var(--container), calc(100% - var(--gutter) * 2)); margin: 0 auto; }
    .site-header {
      position: relative; z-index: 1000;
      background: var(--c-card);
      border-bottom: 1px solid var(--c-line);
    }
    .header-tool {
      height: var(--header-top);
      display: flex; align-items: center;
      background: var(--c-primary);
      color: var(--c-cream);
      font-size: 13px;
      transition: height .28s ease, opacity .28s ease;
    }
    .header-tool .container {
      display: flex; align-items: center; justify-content: space-between; gap: 16px;
      width: min(var(--container), calc(100% - 32px));
    }
    .tool-brand { display: flex; align-items: center; gap: 10px; color: var(--c-cream); }
    .tool-mark {
      display: inline-flex; align-items: center; justify-content: center;
      width: 18px; height: 18px; background: var(--c-accent); color: #fff;
      font-size: 11px; font-family: var(--font-serif); border-radius: 2px;
    }
    .badge-mini {
      display: inline-flex; align-items: center; gap: 6px;
      padding: 2px 8px; border: 1px solid rgba(243,238,230,.35);
      border-radius: 4px; letter-spacing: .04em;
    }
    .badge-mini i { width: 8px; height: 8px; background: var(--c-accent); display: inline-block; }
    .tool-right { display: flex; align-items: center; gap: 18px; }
    .tool-right a { color: var(--c-cream); min-height: 32px; display: inline-flex; align-items: center; }
    .tool-cta {
      background: var(--c-accent); color: #fff !important;
      padding: 0 12px; height: 28px; border-radius: var(--radius-xs);
    }
    .tool-cta:hover { background: var(--c-accent-deep); color: #fff !important; }
    .header-main {
      background: rgba(255,253,249,.92);
      transition: background .25s ease, box-shadow .25s ease;
    }
    .header-main .container {
      min-height: var(--header-main);
      display: flex; align-items: center; justify-content: space-between; gap: 20px;
    }
    .logo {
      display: flex; align-items: baseline; gap: 8px; color: var(--c-primary);
      font-family: var(--font-serif); font-size: 22px; line-height: 1;
      min-height: 44px;
    }
    .logo span { font-size: 13px; color: var(--c-accent); font-family: var(--font-sans); }
    .nav-desktop { display: flex; align-items: center; gap: 4px; }
    .nav-desktop a {
      position: relative; color: var(--c-text); padding: 10px 12px;
      min-height: 44px; display: inline-flex; align-items: center;
      font-size: 15px;
    }
    .nav-desktop a::after {
      content: ""; position: absolute; left: 12px; right: 12px; bottom: 6px;
      height: 3px; background: transparent; border-radius: 1px;
    }
    .nav-desktop a:hover { color: var(--c-primary); }
    .nav-desktop a.is-active { color: var(--c-primary); font-weight: 600; }
    .nav-desktop a.is-active::after { background: var(--c-accent); }
    .nav-desktop a.is-active::before {
      content: ""; width: 8px; height: 8px; background: var(--c-accent);
      margin-right: 6px; display: inline-block;
    }
    .nav-toggle {
      display: none; width: 44px; height: 44px; border: 1px solid var(--c-line);
      background: var(--c-card); border-radius: var(--radius-xs);
      position: relative;
    }
    .nav-toggle span, .nav-toggle span::before, .nav-toggle span::after {
      position: absolute; left: 12px; right: 12px; height: 2px; background: var(--c-primary);
      content: "";
    }
    .nav-toggle span { top: 21px; }
    .nav-toggle span::before { top: -7px; }
    .nav-toggle span::after { top: 7px; }
    .site-header.is-stuck .header-tool { height: 0; overflow: hidden; opacity: 0; }
    .site-header.is-stuck .header-phone-keep { display: none; }
    .site-header.is-stuck .header-main {
      position: sticky; top: 0; background: #F4F0E8;
      box-shadow: 0 6px 18px rgba(26,23,20,.05);
    }
    .site-header.is-stuck .stuck-phone { display: inline-flex; }
    .stuck-phone { display: none; color: var(--c-primary); font-size: 14px; min-height: 44px; align-items: center; }
    .drawer {
      position: fixed; inset: 0; background: var(--c-dark); color: var(--c-cream);
      z-index: 1200; transform: translateX(100%); transition: transform .32s ease;
      padding: 24px; overflow: auto;
    }
    .drawer.is-open { transform: none; }
    .drawer-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 28px; }
    .drawer-close {
      width: 44px; height: 44px; border: 1px solid rgba(243,238,230,.3);
      background: transparent; color: var(--c-cream); border-radius: var(--radius-xs);
    }
    .drawer-nav { display: flex; flex-direction: column; gap: 6px; }
    .drawer-nav a {
      color: var(--c-cream); min-height: 48px; display: flex; align-items: center; gap: 12px;
      padding: 8px 10px; border-bottom: 1px solid rgba(243,238,230,.12); font-size: 18px;
    }
    .drawer-nav a b { width: 10px; height: 18px; display: block; }
    .drawer-foot { margin-top: 28px; display: grid; gap: 12px; }
    .drawer-foot a.btn { justify-content: center; }
    .btn {
      display: inline-flex; align-items: center; justify-content: center; gap: 8px;
      min-height: 44px; padding: 0 18px; border-radius: var(--radius-xs);
      border: 2px solid transparent; font-size: 15px; line-height: 1;
      transition: background .2s ease, color .2s ease, border-color .2s ease, clip-path .2s ease;
    }
    .btn-primary { background: var(--c-accent); color: #fff; clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%); }
    .btn-primary:hover, .btn-primary:active {
      background: var(--c-accent-deep); color: #fff;
      clip-path: polygon(0 0, calc(100% - 8px) 0, 100% 8px, 100% 100%, 0 100%);
    }
    .btn-green { background: var(--c-primary); color: var(--c-cream); }
    .btn-green:hover { background: var(--c-primary-deep); color: var(--c-cream); clip-path: polygon(0 0, calc(100% - 8px) 0, 100% 8px, 100% 100%, 0 100%); }
    .btn-ghost { background: transparent; color: var(--c-cream); border-color: rgba(243,238,230,.55); }
    .btn-ghost:hover { background: rgba(243,238,230,.08); color: #fff; }
    .btn-line { background: transparent; color: var(--c-primary); border-color: var(--c-primary); }
    .btn-line:hover { background: var(--c-primary); color: var(--c-cream); }
    .btn-text { background: none; border: 0; color: var(--c-accent); padding: 0 4px; min-height: 44px; }
    .btn-text:hover { color: var(--c-accent-deep); }
    main { overflow: hidden; }
    section { position: relative; }
    .section-head { max-width: 760px; margin-bottom: 36px; }
    .section-head p { color: var(--c-muted); font-size: 16px; }
    .kicker {
      display: inline-flex; align-items: center; gap: 8px;
      font-size: 13px; color: var(--c-accent); letter-spacing: .08em; margin-bottom: 10px;
    }
    .kicker::before { content: ""; width: 18px; height: 3px; background: var(--c-accent); display: block; }
    .hero {
      position: relative; background: var(--c-dark); color: var(--c-cream);
      min-height: min(92vh, 920px);
    }
    .hero-track { position: relative; min-height: min(92vh, 920px); }
    .hero-slide {
      position: absolute; inset: 0; opacity: 0; visibility: hidden;
      transition: opacity .6s ease;
    }
    .hero-slide.is-active { opacity: 1; visibility: visible; z-index: 2; }
    .hero-slide img {
      width: 100%; height: 100%; object-fit: cover; object-position: center;
      filter: saturate(.92) contrast(1.05);
    }
    .hero-slash { position: absolute; inset: 0; z-index: 3; pointer-events: none; }
    .slash-green {
      position: absolute; inset: 0 18% 0 0;
      background: linear-gradient(108deg, rgba(26,23,20,.78) 0%, rgba(46,74,67,.78) 46%, rgba(46,74,67,.18) 100%);
      clip-path: polygon(0 0, 86% 0, 68% 100%, 0 100%);
    }
    .slash-ochre {
      position: absolute; left: 48%; top: 0; bottom: 18%; width: 18%;
      background: rgba(196,92,38,.55);
      clip-path: polygon(42% 0, 100% 0, 58% 100%, 0 100%);
      mix-blend-mode: multiply;
    }
    .slash-grain {
      position: absolute; inset: 0;
      background-image: repeating-linear-gradient(90deg, rgba(243,238,230,.05) 0 1px, transparent 1px 18px);
      opacity: .35;
    }
    .hero-copy {
      position: absolute; z-index: 4; left: 0; right: 0; top: 0; bottom: 0;
      display: flex; align-items: center;
    }
    .hero-copy .container { width: min(var(--container), calc(100% - 48px)); }
    .hero-panel { max-width: 640px; padding: 12px 0 80px; }
    .hero-chips { display: flex; flex-wrap: wrap; gap: 8px; margin: 18px 0 22px; }
    .chip {
      display: inline-flex; align-items: center; min-height: 32px; padding: 0 10px;
      border: 1px solid rgba(243,238,230,.35); border-radius: 4px; font-size: 13px; color: var(--c-cream);
      background: rgba(26,23,20,.25);
    }
    .hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 8px; }
    .hero-note { margin-top: 16px; color: rgba(243,238,230,.82); font-size: 15px; max-width: 52ch; }
    .campaign-bar {
      position: absolute; z-index: 5; left: 0; right: 0; bottom: 0;
      background: linear-gradient(90deg, #C45C26 0%, #a34b1e 42%, #2E4A43 42%, #2E4A43 100%);
      color: #fff; min-height: 48px; display: flex; align-items: center;
    }
    .campaign-bar .container { display: flex; justify-content: space-between; gap: 16px; align-items: center; font-size: 14px; }
    .campaign-bar strong { font-family: var(--font-serif); }
    .hero-controls {
      position: absolute; z-index: 6; right: max(24px, calc((100% - var(--container)) / 2));
      bottom: 72px; display: flex; align-items: center; gap: 8px;
    }
    .hero-btn, .hero-pause, .dot {
      width: 44px; height: 44px; border: 1px solid rgba(243,238,230,.4);
      background: rgba(26,23,20,.35); color: var(--c-cream); border-radius: var(--radius-xs);
    }
    .dots { display: flex; gap: 6px; }
    .dot { width: 12px; height: 12px; padding: 0; min-width: 12px; height: 12px; width: 12px; border-radius: 2px; }
    .dot.is-on { background: var(--c-accent); border-color: var(--c-accent); }
    .hero.is-paused .hero-pause { background: var(--c-accent); border-color: var(--c-accent); }
    .sec-metrics { padding: var(--space-section) 0 92px; background: var(--c-bg); }
    .metrics-grid {
      display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px;
    }
    .metric {
      background: var(--c-card); border: 1px solid var(--c-line); border-radius: var(--radius);
      padding: 18px 18px 16px; position: relative; overflow: hidden;
      transition: border-color .2s ease;
    }
    .metric::before {
      content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 0;
      background: var(--c-primary); transition: width .2s ease;
    }
    .metric:hover::before { width: 4px; }
    .metric:hover { border-color: var(--c-primary); }
    .metric .label { font-size: 13px; color: var(--c-muted); }
    .metric .num {
      font-family: var(--font-serif); font-size: 36px; line-height: 1.15;
      color: var(--c-primary); margin: 8px 0 2px; white-space: nowrap;
    }
    .metric.is-key .num { color: var(--c-accent); }
    .metric .unit { font-size: 13px; color: var(--c-primary); margin-bottom: 8px; }
    .metric p { font-size: 13px; color: var(--c-muted); line-height: 1.6; }
    .mini-bar { height: 6px; background: var(--c-rock); border-radius: 2px; margin-top: 10px; overflow: hidden; }
    .mini-bar span { display: block; height: 100%; background: linear-gradient(90deg, var(--c-primary), var(--c-accent)); }
    .sec-intro { padding: 0 0 var(--space-section); }
    .intro-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 48px; align-items: center; }
    .intro-visual { position: relative; }
    .intro-visual img { width: 100%; height: 520px; object-fit: cover; border-radius: var(--radius); border: 1px solid var(--c-line); }
    .intro-visual figcaption { font-size: 13px; color: var(--c-muted); margin-top: 8px; }
    .param-box {
      margin-top: 22px; background: var(--c-card); border: 1px solid var(--c-line);
      border-radius: var(--radius); overflow: hidden;
    }
    .param-box dt, .param-box dd { padding: 10px 14px; font-size: 14px; }
    .param-box div { display: grid; grid-template-columns: 140px 1fr; border-bottom: 1px solid var(--c-rock); }
    .param-box div:last-child { border-bottom: 0; }
    .param-box dt { background: var(--c-rock); color: var(--c-primary); font-weight: 600; }
    .note-block {
      margin-top: 16px; padding: 12px 14px; background: #eef3ef; border-left: 4px solid var(--c-ok);
      font-size: 14px; color: var(--c-primary);
    }
    .sec-matrix { padding: var(--space-section) 0; background: var(--c-rock); }
    .matrix-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
    .mcard {
      background: var(--c-card); border: 1px solid var(--c-line); border-radius: var(--radius);
      overflow: hidden; position: relative; transition: border-color .2s ease;
    }
    .mcard:hover { border-color: var(--c-primary); }
    .mcard:hover::after { width: 4px; }
    .mcard::after {
      content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 0; background: var(--c-primary); transition: width .2s;
    }
    .mcard:hover img { transform: scale(1.03); }
    .mcard img { width: 100%; height: 150px; object-fit: cover; transition: transform .35s ease; }
    .mcard-a { display: grid; grid-template-columns: 10px 1fr; }
    .mcard-a .swatch { background: var(--c-primary); }
    .mcard-a .body, .mcard-c .body, .mcard-d .body, .mcard-e .body, .mcard-f .body { padding: 18px; }
    .mcard-b .cap { height: 92px; display: flex; align-items: flex-end; padding: 12px; color: #fff; font-family: var(--font-serif); }
    .mcard-b .params { display: flex; gap: 8px; padding: 14px 16px 18px; flex-wrap: wrap; }
    .tag {
      display: inline-flex; align-items: center; min-height: 28px; padding: 0 8px;
      background: var(--c-rock); color: var(--c-primary); border-radius: 4px; font-size: 12px;
    }
    .mcard-c { display: grid; grid-template-rows: 150px 1fr; }
    .mcard-d ol { margin: 8px 0 0 18px; color: var(--c-muted); font-size: 14px; }
    .mcard-e .kv { display: grid; grid-template-columns: 72px 1fr; gap: 6px 10px; font-size: 14px; margin-top: 8px; }
    .mcard-e .kv span { color: var(--c-muted); }
    .mcard-f .quote { font-size: 14px; color: var(--c-muted); border-left: 3px solid var(--c-accent); padding-left: 10px; margin-top: 8px; }
    .sec-products { padding: var(--space-section) 0; background: var(--c-bg); }
    .products-layout { display: grid; grid-template-columns: 1.35fr .9fr; grid-template-rows: auto auto; gap: 16px; }
    .pcard {
      background: var(--c-card); border: 1px solid var(--c-line); border-radius: var(--radius);
      overflow: hidden; position: relative;
    }
    .pcard:hover::before { width: 4px; }
    .pcard::before { content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 0; background: var(--c-primary); transition: width .2s; z-index: 2; }
    .pcard:hover img { transform: scale(1.03); }
    .pcard img { width: 100%; object-fit: cover; transition: transform .35s ease; }
    .pcard-main { grid-row: 1 / 3; display: grid; grid-template-rows: 280px 1fr; }
    .pcard-main img { height: 280px; }
    .pcard-side { display: grid; grid-template-columns: 140px 1fr; min-height: 170px; }
    .pcard-side img { height: 100%; min-height: 170px; }
    .pcard .body { padding: 18px 20px 20px; }
    .spec { display: grid; grid-template-columns: 88px 1fr; gap: 6px 8px; font-size: 14px; color: var(--c-muted); margin: 10px 0 16px; }
    .spec dt { color: var(--c-primary); }
    .sec-compare { padding: var(--space-section) 0; background: #efe9dd; }
    .compare-grid { display: grid; grid-template-columns: 1.2fr .8fr; gap: 28px; align-items: stretch; }
    .compare-view { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
    .compare-pane { position: relative; overflow: hidden; border-radius: var(--radius); border: 1px solid var(--c-line); }
    .compare-pane img { width: 100%; height: 420px; object-fit: cover; }
    .compare-pane span {
      position: absolute; left: 10px; top: 10px; background: rgba(26,23,20,.72); color: #fff;
      font-size: 12px; padding: 4px 8px; border-radius: 4px;
    }
    .compare-dl { background: var(--c-card); border: 1px solid var(--c-line); border-radius: var(--radius); padding: 8px 4px; }
    .compare-dl div { display: grid; grid-template-columns: 72px 1fr; gap: 8px; padding: 14px 16px; border-bottom: 1px solid var(--c-rock); }
    .compare-dl div:last-child { border-bottom: 0; }
    .compare-dl dt { font-weight: 600; color: var(--c-primary); }
    .sec-cases { padding: var(--space-section) 0; background: var(--c-dark); color: var(--c-cream); }
    .sec-cases h2, .sec-cases .kicker { color: var(--c-cream); }
    .sec-cases .section-head p { color: rgba(243,238,230,.78); }
    .cases-grid { display: grid; grid-template-columns: 1.4fr 1fr; gap: 14px; }
    .case-card { position: relative; min-height: 240px; overflow: hidden; border-radius: var(--radius); }
    .case-card img { width: 100%; height: 100%; object-fit: cover; min-height: 240px; filter: brightness(.78); transition: transform .35s ease; }
    .case-card:hover img { transform: scale(1.03); }
    .case-card.large { min-height: 494px; grid-row: 1 / 3; }
    .case-card.large img { min-height: 494px; }
    .case-copy { position: absolute; left: 0; right: 0; bottom: 0; padding: 20px; background: linear-gradient(transparent, rgba(26,23,20,.82)); }
    .case-copy h3 { color: var(--c-cream); margin-bottom: 6px; }
    .case-copy p { color: rgba(243,238,230,.86); font-size: 14px; }
    .badges { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 10px; }
    .badge {
      font-size: 12px; min-height: 24px; padding: 0 8px; display: inline-flex; align-items: center;
      border: 1px solid rgba(243,238,230,.3); border-radius: 4px; color: var(--c-cream);
    }
    .badge.ok { background: rgba(77,107,94,.45); }
    .sec-miles { padding: var(--space-section) 0; background: var(--c-bg); }
    .timeline { display: grid; grid-template-columns: repeat(5, 1fr); gap: 12px; position: relative; }
    .timeline::before {
      content: ""; position: absolute; left: 8%; right: 8%; top: 18px; height: 2px; background: var(--c-line);
    }
    .node { background: var(--c-card); border: 1px solid var(--c-line); border-radius: var(--radius); padding: 28px 16px 16px; position: relative; }
    .node i {
      position: absolute; top: 10px; left: 16px; width: 14px; height: 14px; border-radius: 50%;
      background: var(--c-primary); box-shadow: 0 0 0 4px var(--c-bg);
    }
    .node.is-now i { background: var(--c-accent); }
    .node h3 { font-size: 16px; margin: 8px 0; }
    .node p { font-size: 14px; color: var(--c-muted); }
    .sec-stories { padding: var(--space-section) 0; background: var(--c-card); }
    .story { display: grid; grid-template-columns: .9fr 1.1fr; gap: 36px; align-items: center; margin-bottom: 56px; }
    .story:nth-child(even) { grid-template-columns: 1.1fr .9fr; }
    .story:nth-child(even) .story-text { order: -1; }
    .story img { width: 100%; height: 320px; object-fit: cover; border-radius: var(--radius); border: 1px solid var(--c-line); }
    .story p { color: var(--c-muted); }
    .sec-stats { padding: 64px 0; background: #dfe6df; }
    .stats-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; text-align: left; }
    .stat .n { font-family: var(--font-serif); font-size: 48px; color: var(--c-primary); line-height: 1.1; white-space: nowrap; }
    .stat .n em { font-style: normal; color: var(--c-accent); font-size: 22px; margin-left: 4px; }
    .stat .l { font-size: 13px; color: var(--c-muted); margin-top: 6px; }
    .sec-reviews { padding: var(--space-section) 0; background: var(--c-bg); }
    .review-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
    .review {
      display: grid; grid-template-columns: 10px 1fr 72px; gap: 0;
      background: var(--c-card); border: 1px solid var(--c-line); border-radius: var(--radius); overflow: hidden;
    }
    .review .bar { background: var(--c-primary); }
    .review:nth-child(2n) .bar { background: var(--c-accent); }
    .review .body { padding: 18px 16px; }
    .review q { font-size: 15px; color: var(--c-text); quotes: "「" "」"; }
    .review .who { margin-top: 10px; font-size: 13px; color: var(--c-muted); }
    .swatch-col { background: linear-gradient(180deg, #d9c7a8, #8a9a86 55%, #2e4a43); }
    .sec-news { padding: var(--space-section) 0; background: var(--c-rock); }
    .news-layout { display: grid; grid-template-columns: 1.4fr .75fr; gap: 24px; }
    .topic-strip { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 20px; }
    .topic-strip a {
      min-height: 36px; padding: 0 12px; display: inline-flex; align-items: center;
      background: var(--c-card); border: 1px solid var(--c-line); border-radius: 4px; color: var(--c-primary); font-size: 13px;
    }
    .topic-strip a:hover { border-color: var(--c-accent); color: var(--c-accent); }
    .news-list { display: grid; gap: 10px; }
    .news-item {
      display: grid; grid-template-columns: 64px 1fr; gap: 12px;
      background: var(--c-card); border: 1px solid var(--c-line); border-radius: var(--radius); padding: 14px;
    }
    .news-item:hover { border-color: var(--c-primary); }
    .news-date { display: flex; flex-direction: column; align-items: center; justify-content: center; background: var(--c-primary); color: var(--c-cream); border-radius: 6px; font-family: var(--font-serif); }
    .news-date b { font-size: 20px; line-height: 1; }
    .news-date span { font-size: 11px; }
    .news-item h3 { font-size: 16px; margin-bottom: 6px; }
    .news-item p { font-size: 14px; color: var(--c-muted); }
    .hot-box { background: var(--c-dark); color: var(--c-cream); border-radius: var(--radius); padding: 20px; }
    .hot-box h3 { color: var(--c-cream); margin-bottom: 14px; }
    .hot-box ol { list-style: none; counter-reset: hot; }
    .hot-box li { counter-increment: hot; display: flex; gap: 10px; padding: 10px 0; border-bottom: 1px solid rgba(243,238,230,.12); font-size: 14px; }
    .hot-box li::before { content: counter(hot); color: var(--c-accent); font-family: var(--font-serif); width: 18px; }
    .news-more { margin-top: 16px; }
    .sec-guarantee { padding: var(--space-section) 0; background: var(--c-bg); }
    .flow {
      display: grid; grid-template-columns: repeat(5, 1fr); gap: 8px; margin-bottom: 22px;
    }
    .flow li {
      list-style: none; background: var(--c-card); border: 1px solid var(--c-line); border-radius: var(--radius);
      padding: 14px; font-size: 14px; position: relative;
    }
    .flow b { display: block; font-family: var(--font-serif); color: var(--c-accent); margin-bottom: 4px; }
    .g-grid { display: grid; grid-template-columns: 1.1fr 1fr; gap: 16px; }
    .g-grid img { width: 100%; height: 280px; object-fit: cover; border-radius: var(--radius); border: 1px solid var(--c-line); }
    .g-items { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
    .g-item { background: var(--c-card); border: 1px solid var(--c-line); border-radius: var(--radius); padding: 16px; }
    .g-item h3 { margin-bottom: 6px; }
    .g-item p { font-size: 14px; color: var(--c-muted); }
    .media-std { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }
    .media-std span {
      min-height: 36px; padding: 0 10px; display: inline-flex; align-items: center;
      border: 1px dashed var(--c-line); border-radius: 4px; font-size: 12px; color: var(--c-primary); background: #fff;
    }
    .sec-quick { padding: var(--space-section) 0 40px; background: var(--c-card); }
    .q-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 16px; }
    .q-tags button {
      min-height: 44px; padding: 0 14px; border: 1px solid var(--c-line); background: var(--c-bg);
      border-radius: 4px; color: var(--c-primary);
    }
    .q-tags button.is-on { background: var(--c-primary); color: var(--c-cream); border-color: var(--c-primary); }
    .q-panel { background: var(--c-bg); border: 1px solid var(--c-line); border-radius: var(--radius); padding: 18px 20px; min-height: 92px; color: var(--c-muted); }
    .sec-faq { padding: 40px 0 var(--space-section); background: var(--c-card); }
    .faq-list { display: grid; gap: 8px; max-width: 920px; }
    .faq-item { border: 1px solid var(--c-line); border-radius: var(--radius); background: var(--c-bg); overflow: hidden; }
    .faq-item button {
      width: 100%; text-align: left; background: none; border: 0; min-height: 56px;
      padding: 12px 48px 12px 18px; position: relative; color: var(--c-primary); font-size: 16px;
    }
    .faq-item button::after {
      content: "+"; position: absolute; right: 16px; top: 50%; transform: translateY(-50%);
      color: var(--c-accent); font-size: 20px;
    }
    .faq-item button[aria-expanded="true"]::after { content: "–"; }
    .faq-item .faq-a { display: none; padding: 0 18px 16px; color: var(--c-muted); font-size: 15px; }
    .faq-item.is-open .faq-a { display: block; }
    .sec-contact { padding: var(--space-section) 0; background: linear-gradient(120deg, #efe8da 0 42%, #2E4A43 42% 100%); }
    .contact-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 36px; align-items: start; }
    .contact-copy { color: var(--c-text); padding-right: 12px; }
    .trust { display: grid; gap: 10px; margin: 22px 0; }
    .trust li { list-style: none; padding-left: 16px; border-left: 3px solid var(--c-accent); font-size: 15px; }
    .form-card {
      background: var(--c-card); border: 1px solid var(--c-line); border-radius: var(--radius);
      padding: 22px; box-shadow: var(--shadow-soft);
    }
    .form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
    .field { display: flex; flex-direction: column; gap: 6px; }
    .field.full { grid-column: 1 / -1; }
    label { font-size: 13px; color: var(--c-primary); }
    input, select, textarea {
      min-height: 44px; border: 1px solid var(--c-line); border-radius: var(--radius-xs);
      background: #fff; padding: 8px 10px; color: var(--c-text);
    }
    textarea { min-height: 96px; resize: vertical; }
    input:focus, select:focus, textarea:focus { border-color: var(--c-primary); outline: var(--focus); }
    .field.error input, .field.error select, .field.error textarea { border-color: var(--c-warn); }
    .err { color: var(--c-warn); font-size: 12px; display: none; }
    .field.error .err { display: block; }
    .check { display: flex; align-items: flex-start; gap: 8px; font-size: 13px; color: var(--c-muted); }
    .check input { width: 18px; height: 18px; min-height: 18px; margin-top: 3px; }
    .form-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 8px; }
    .form-ok {
      display: none; margin-top: 12px; padding: 12px 14px; background: #e5eee8; color: var(--c-ok);
      border-radius: var(--radius-xs); border: 1px solid #c5d4c8;
    }
    .form-ok.is-show { display: block; }
    .site-footer { background: var(--c-dark); color: var(--c-cream); padding: 56px 0 24px; }
    .foot-grid { display: grid; grid-template-columns: 1.2fr .8fr 1fr .9fr; gap: 28px; }
    .site-footer a { color: rgba(243,238,230,.86); }
    .site-footer a:hover { color: #fff; }
    .site-footer h3 { color: var(--c-cream); font-size: 16px; margin-bottom: 12px; }
    .site-footer p, .site-footer li { font-size: 14px; color: rgba(243,238,230,.78); line-height: 1.8; }
    .foot-map { list-style: none; display: grid; gap: 6px; }
    .foot-copy { margin-top: 28px; padding-top: 16px; border-top: 1px solid rgba(243,238,230,.12); font-size: 13px; color: rgba(243,238,230,.55); display: flex; flex-wrap: wrap; gap: 10px 18px; justify-content: space-between; }
    .privacy { margin-top: 10px; }
    .privacy summary { cursor: pointer; color: var(--c-accent-soft); min-height: 44px; display: flex; align-items: center; }
    .privacy p { margin-top: 8px; font-size: 13px; }
    @media (max-width: 1440px) {
      :root { --container: 1180px; }
    }
    @media (max-width: 1024px) {
      :root { --space-section: 84px; --gutter: 20px; }
      .nav-desktop { display: none; }
      .nav-toggle { display: inline-flex; }
      .metrics-grid { grid-template-columns: repeat(2, 1fr); }
      .intro-grid, .compare-grid, .contact-grid, .news-layout, .g-grid { grid-template-columns: 1fr; }
      .products-layout { grid-template-columns: 1fr; }
      .pcard-main { grid-row: auto; }
      .cases-grid { grid-template-columns: 1fr 1fr; }
      .case-card.large { grid-row: auto; min-height: 280px; }
      .case-card.large img { min-height: 280px; }
      .timeline { grid-template-columns: 1fr 1fr; }
      .timeline::before { display: none; }
      .story, .story:nth-child(even) { grid-template-columns: 1fr; }
      .story:nth-child(even) .story-text { order: 0; }
      .stats-row { grid-template-columns: 1fr 1fr; gap: 20px; }
      .flow { grid-template-columns: 1fr 1fr; }
      .sec-contact { background: var(--c-rock); }
      .foot-grid { grid-template-columns: 1fr 1fr; }
      .hero { min-height: auto; }
      .hero-track, .hero-slide { min-height: 640px; }
      .slash-green { clip-path: polygon(0 0, 100% 0, 100% 62%, 0 88%); inset: 0; }
      .hero-copy { align-items: flex-end; }
      .hero-panel { padding: 0 0 78px; max-width: 100%; }
    }
    @media (max-width: 768px) {
      body { font-size: 16px; }
      .tool-right .hide-sm, .campaign-bar span.hide-sm { display: none; }
      .matrix-grid, .review-grid, .g-items { grid-template-columns: 1fr; }
      .compare-view { grid-template-columns: 1fr; }
      .compare-pane img { height: 240px; }
      .pcard-side { grid-template-columns: 1fr; }
      .pcard-side img { height: 160px; min-height: 160px; }
      .form-grid { grid-template-columns: 1fr; }
      .hero-track, .hero-slide { min-height: 0; aspect-ratio: 4 / 5; }
      .hero-controls { right: 12px; bottom: 64px; }
      .intro-visual img, .story img { height: 240px; }
      .stat .n { font-size: 40px; }
    }
    @media (max-width: 520px) {
      :root { --space-section: 64px; --gutter: 16px; }
      .metrics-grid, .stats-row, .cases-grid, .timeline, .flow, .foot-grid { grid-template-columns: 1fr 1fr; }
      .flow { grid-template-columns: 1fr; }
      .logo { font-size: 18px; }
      .campaign-bar .container { font-size: 12px; }
      .hero-chips { gap: 6px; }
      h1 { font-size: 28px; }
      .metric .num { font-size: 28px; }
    }
    @media (prefers-reduced-motion: reduce) {
      html { scroll-behavior: auto; }
      *, *::before, *::after { animation: none !important; transition: none !important; }
    }

/* roulang page: index */
:root {
      --green: #2E4A43;
      --green-deep: #223832;
      --green-soft: #4f6f62;
      --ochre: #C45C26;
      --ochre-deep: #a34b1f;
      --gypsum: #F4F0E8;
      --paper: #FFFDF9;
      --rock: #E7E1D6;
      --charcoal: #1A1714;
      --cream: #F3EEE6;
      --ink: #241f1b;
      --muted: #5e574e;
      --line: #d5cec3;
      --pass: #3e5d52;
      --warn: #a64532;
      --radius: 10px;
      --radius-sm: 4px;
      --shadow: 0 10px 24px rgba(26, 23, 20, 0.06);
      --shadow-soft: 0 6px 16px rgba(26, 23, 20, 0.04);
      --max: 1240px;
      --header-top: 42px;
      --header-main: 64px;
      --font-serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", "STSong", serif;
      --font-sans: "PingFang SC", "Hiragino Sans GB", "Noto Sans SC", "Microsoft YaHei", sans-serif;
    }
    *, *::before, *::after { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    html, body { margin: 0; padding: 0; }
    body {
      font-family: var(--font-sans);
      font-size: 17px;
      line-height: 1.8;
      color: var(--ink);
      background: var(--gypsum);
      overflow-x: clip;
    }
    img { max-width: 100%; height: auto; display: block; }
    a { color: var(--green); text-decoration: none; }
    a:hover { color: var(--ochre); }
    button, input, select, textarea { font-family: inherit; font-size: inherit; }
    button { cursor: pointer; }
    h1, h2, h3 { font-family: var(--font-serif); color: var(--ink); font-weight: 650; margin: 0; }
    h1 { font-size: clamp(28px, 4vw, 46px); line-height: 1.28; letter-spacing: 0.01em; }
    h2 { font-size: clamp(22px, 2.4vw, 32px); line-height: 1.3; margin-bottom: 14px; }
    h3 { font-size: 18px; line-height: 1.4; }
    p { margin: 0 0 0.85em; }
    p:last-child { margin-bottom: 0; }
    ul { margin: 0; padding: 0; list-style: none; }
    .nowrap { white-space: nowrap; }
    :focus-visible {
      outline: 2px solid var(--ochre);
      outline-offset: 3px;
    }
    .skip-link {
      position: absolute;
      left: 12px;
      top: -48px;
      z-index: 80;
      background: var(--ochre);
      color: #fff;
      padding: 10px 14px;
      border-radius: var(--radius-sm);
    }
    .skip-link:focus { top: 12px; color: #fff; }
    .container {
      width: min(var(--max), calc(100% - 40px));
      margin: 0 auto;
    }
    .section {
      padding: 108px 0;
      position: relative;
    }
    .section-kicker {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      font-size: 12px;
      letter-spacing: 0.12em;
      color: var(--green);
      margin-bottom: 10px;
      text-transform: none;
    }
    .section-kicker::before {
      content: "";
      width: 18px;
      height: 8px;
      background: var(--ochre);
      border-radius: 1px;
    }
    .section-lead {
      max-width: 760px;
      color: var(--muted);
      font-size: 16px;
      line-height: 1.85;
      margin-bottom: 36px;
    }
    .site-header {
      position: sticky;
      top: 0;
      z-index: 50;
      background: rgba(244, 240, 232, 0.92);
      border-bottom: 1px solid rgba(46, 74, 67, 0.08);
    }
    .util-bar {
      display: flex;
      align-items: center;
      justify-content: space-between;
      min-height: var(--header-top);
      background: var(--green);
      color: var(--cream);
      padding: 0 20px;
      transition: max-height .28s ease, opacity .28s ease, padding .28s ease;
      overflow: hidden;
    }
    .util-left, .util-right {
      display: flex;
      align-items: center;
      gap: 14px;
      font-size: 13px;
    }
    .brand-mini {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      color: var(--cream);
      font-weight: 600;
    }
    .brand-mini .chip {
      width: 14px;
      height: 14px;
      background: var(--ochre);
      border-radius: 2px;
    }
    .badge-mini {
      border: 1px solid rgba(243, 238, 230, 0.35);
      padding: 2px 8px;
      border-radius: 2px;
      font-size: 12px;
    }
    .util-right a { color: var(--cream); }
    .util-cta {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 32px;
      padding: 0 12px;
      background: var(--ochre);
      color: #fff !important;
      border-radius: var(--radius-sm);
    }
    .main-nav-bar {
      display: flex;
      align-items: center;
      justify-content: space-between;
      min-height: var(--header-main);
      width: min(var(--max), calc(100% - 40px));
      margin: 0 auto;
      gap: 20px;
    }
    .logo {
      display: flex;
      align-items: center;
      gap: 10px;
      color: var(--ink);
      min-height: 44px;
    }
    .logo-mark {
      width: 28px;
      height: 28px;
      background: linear-gradient(135deg, var(--green) 50%, var(--ochre) 50%);
      border-radius: 4px;
      position: relative;
    }
    .logo-mark::after {
      content: "";
      position: absolute;
      right: 3px;
      bottom: 3px;
      width: 8px;
      height: 8px;
      background: var(--paper);
    }
    .logo-text {
      display: flex;
      flex-direction: column;
      line-height: 1.15;
    }
    .logo-text strong {
      font-family: var(--font-serif);
      font-size: 18px;
    }
    .logo-text span {
      font-size: 12px;
      color: var(--muted);
    }
    .nav-links {
      display: flex;
      align-items: center;
      gap: 4px;
    }
    .nav-links a {
      position: relative;
      color: var(--ink);
      padding: 10px 12px;
      min-height: 44px;
      display: inline-flex;
      align-items: center;
      font-size: 14px;
    }
    .nav-links a::after {
      content: "";
      position: absolute;
      left: 12px;
      right: 12px;
      bottom: 6px;
      height: 3px;
      background: transparent;
      border-radius: 1px;
    }
    .nav-links a:hover::after,
    .nav-links a.is-active::after {
      background: var(--ochre);
    }
    .nav-toggle {
      display: none;
      width: 44px;
      height: 44px;
      border: 1px solid var(--line);
      background: var(--paper);
      border-radius: var(--radius-sm);
      position: relative;
    }
    .nav-toggle span,
    .nav-toggle span::before,
    .nav-toggle span::after {
      position: absolute;
      width: 18px;
      height: 2px;
      background: var(--green);
      left: 12px;
    }
    .nav-toggle span { top: 21px; }
    .nav-toggle span::before { content: ""; top: -6px; }
    .nav-toggle span::after { content: ""; top: 6px; }
    .site-header.is-scrolled {
      background: #F4F0E8;
      box-shadow: 0 8px 18px rgba(26, 23, 20, 0.05);
    }
    .site-header.is-scrolled .util-bar {
      max-height: 0;
      opacity: 0;
      padding-top: 0;
      padding-bottom: 0;
    }
    .site-header.is-scrolled .util-phone-keep {
      position: absolute;
      right: 24px;
      top: 10px;
      color: var(--green);
      font-size: 13px;
      opacity: 1;
    }
    .drawer {
      position: fixed;
      inset: 0;
      background: var(--charcoal);
      color: var(--cream);
      transform: translateX(100%);
      transition: transform .28s ease;
      z-index: 70;
      padding: 28px 22px;
      display: flex;
      flex-direction: column;
      gap: 18px;
    }
    .drawer.is-open { transform: translateX(0); }
    .drawer a { color: var(--cream); min-height: 44px; display: flex; align-items: center; gap: 10px; font-size: 18px; }
    .drawer .swatch { width: 14px; height: 14px; border-radius: 2px; }
    .drawer-close {
      align-self: flex-end;
      width: 44px;
      height: 44px;
      border: 1px solid rgba(243,238,230,.3);
      background: transparent;
      color: var(--cream);
      border-radius: var(--radius-sm);
    }
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 44px;
      padding: 0 18px;
      border-radius: var(--radius-sm);
      border: 1px solid transparent;
      font-size: 15px;
      transition: background .2s ease, color .2s ease, box-shadow .2s ease, transform .15s ease;
    }
    .btn:active { transform: translateY(1px); }
    .btn-primary {
      background: var(--ochre);
      color: #fff !important;
    }
    .btn-primary:hover {
      background: var(--ochre-deep);
      box-shadow: inset -8px 0 0 0 var(--green);
    }
    .btn-green {
      background: var(--green);
      color: var(--cream) !important;
    }
    .btn-green:hover {
      background: var(--green-deep);
      box-shadow: inset -8px 0 0 0 var(--ochre);
    }
    .btn-ghost {
      background: transparent;
      border-color: rgba(243,238,230,.45);
      color: var(--cream) !important;
    }
    .btn-outline {
      background: transparent;
      border-color: var(--green);
      color: var(--green) !important;
    }
    .btn-outline:hover { background: var(--green); color: var(--cream) !important; }
    .btn-text {
      background: none;
      border: none;
      color: var(--ochre);
      min-height: 44px;
      padding: 0 8px;
    }
    .hero {
      padding: 0;
      position: relative;
      background: var(--charcoal);
    }
    .campaign-strip {
      display: flex;
      justify-content: space-between;
      gap: 16px;
      align-items: center;
      background: linear-gradient(90deg, var(--ochre) 0 42%, var(--green) 42% 100%);
      color: var(--cream);
      padding: 10px 8px;
    }
    .campaign-strip .container {
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 12px;
      width: min(var(--max), calc(100% - 24px));
      font-size: 13px;
    }
    .campaign-strip b { font-weight: 650; }
    .hero-slider {
      position: relative;
      min-height: 86vh;
      overflow: hidden;
    }
    .slide {
      position: absolute;
      inset: 0;
      opacity: 0;
      visibility: hidden;
      transition: opacity .6s ease;
    }
    .slide.is-active {
      opacity: 1;
      visibility: visible;
      z-index: 1;
    }
    .slide-bg {
      width: 100%;
      height: 100%;
      object-fit: cover;
      filter: saturate(0.86) contrast(1.05);
    }
    .slide::after {
      content: "";
      position: absolute;
      inset: 0;
      background:
        repeating-linear-gradient(90deg, rgba(255,255,255,.03) 0 1px, transparent 1px 18px),
        linear-gradient(90deg, rgba(26,23,20,.28), transparent 55%);
      pointer-events: none;
    }
    .hero-cut {
      position: absolute;
      z-index: 2;
      left: 0;
      top: 0;
      bottom: 0;
      width: min(58%, 760px);
      background: rgba(46, 74, 67, 0.92);
      clip-path: polygon(0 0, 88% 0, 72% 100%, 0 100%);
      display: flex;
      align-items: center;
      color: var(--cream);
    }
    .hero-copy {
      width: min(560px, 86%);
      margin-left: max(20px, calc((100vw - var(--max)) / 2));
      padding: 28px 0 28px 4px;
    }
    .hero-copy h1, .slide-title {
      color: var(--cream);
      font-family: var(--font-serif);
      font-size: clamp(26px, 3.6vw, 44px);
      line-height: 1.28;
      margin-bottom: 12px;
    }
    .hero-kicker {
      display: inline-block;
      font-size: 13px;
      letter-spacing: 0.08em;
      margin-bottom: 12px;
      border-left: 8px solid var(--ochre);
      padding-left: 10px;
    }
    .hero-sub {
      font-size: 16px;
      margin-bottom: 14px;
      color: #f7f1e6;
    }
    .hero-intro {
      font-size: 15px;
      line-height: 1.8;
      max-width: 46em;
      margin-bottom: 22px;
      color: rgba(243,238,230,.92);
    }
    .hero-actions { display: flex; gap: 10px; flex-wrap: wrap; }
    .spec-chips {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin: 16px 0 20px;
    }
    .spec-chips span {
      background: rgba(243,238,230,.1);
      border: 1px solid rgba(243,238,230,.2);
      padding: 4px 8px;
      font-size: 12px;
      border-radius: 2px;
    }
    .slider-ui {
      position: absolute;
      z-index: 3;
      right: 24px;
      bottom: 24px;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .slider-ui button {
      width: 44px;
      height: 44px;
      border: 1px solid rgba(243,238,230,.35);
      background: rgba(26,23,20,.45);
      color: var(--cream);
      border-radius: var(--radius-sm);
    }
    .dots { display: flex; gap: 6px; }
    .dots button {
      width: 10px;
      height: 10px;
      border-radius: 1px;
      padding: 0;
      background: rgba(243,238,230,.35);
      border: 0;
      min-width: 44px;
      min-height: 12px;
      background-clip: content-box;
      padding: 16px 17px;
    }
    .dots button.is-active { background-color: var(--ochre); background-clip: content-box; }
    .metrics { background: var(--paper); }
    .metric-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 14px;
    }
    .metric-card {
      background: var(--gypsum);
      border: 1px solid var(--line);
      border-radius: var(--radius);
      padding: 18px 16px 16px;
      position: relative;
      overflow: hidden;
    }
    .metric-card:hover { box-shadow: var(--shadow-soft); }
    .metric-card:hover::before {
      content: "";
      position: absolute;
      left: 0; top: 0; bottom: 0;
      width: 4px;
      background: var(--green);
    }
    .metric-card.is-accent { background: var(--green); color: var(--cream); }
    .metric-card.is-accent .label, .metric-card.is-accent .note { color: rgba(243,238,230,.8); }
    .metric-card .label { font-size: 12px; color: var(--muted); }
    .metric-card .num {
      font-family: var(--font-serif);
      font-size: 34px;
      line-height: 1.1;
      margin: 8px 0 4px;
    }
    .metric-card .unit { font-size: 13px; color: var(--ochre); font-weight: 650; }
    .metric-card.is-accent .unit { color: #efc3a6; }
    .metric-card .note { font-size: 13px; color: var(--muted); line-height: 1.6; }
    .mini-bar {
      height: 4px;
      background: var(--rock);
      margin-top: 12px;
      border-radius: 1px;
      overflow: hidden;
    }
    .mini-bar i { display: block; height: 100%; background: var(--ochre); }
    .intro { background: var(--gypsum); }
    .split {
      display: grid;
      grid-template-columns: 1.05fr 0.95fr;
      gap: 48px;
      align-items: center;
    }
    .media-frame {
      position: relative;
      border-radius: var(--radius);
      overflow: hidden;
      border: 1px solid var(--line);
    }
    .media-frame img { width: 100%; height: 100%; object-fit: cover; min-height: 360px; transition: transform .4s ease; }
    .media-frame:hover img { transform: scale(1.03); }
    .param-box {
      margin-top: 22px;
      background: var(--paper);
      border: 1px solid var(--line);
      border-radius: var(--radius);
      padding: 16px 18px;
    }
    .param-box dt {
      font-size: 12px;
      color: var(--muted);
    }
    .param-box dd {
      margin: 0 0 10px;
      font-size: 14px;
    }
    .param-box div {
      display: grid;
      grid-template-columns: 96px 1fr;
      gap: 8px;
      padding: 8px 0;
      border-bottom: 1px dashed var(--line);
    }
    .param-box div:last-child { border-bottom: 0; }
    .matrix { background: var(--rock); }
    .matrix-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 16px;
    }
    .mx-card {
      background: var(--paper);
      border: 1px solid var(--line);
      border-radius: var(--radius);
      overflow: hidden;
      position: relative;
      min-height: 220px;
    }
    .mx-card:hover::before {
      content: "";
      position: absolute;
      left: 0; top: 0; bottom: 0;
      width: 4px;
      background: var(--green);
      z-index: 2;
    }
    .mx-card h3 { margin-bottom: 8px; }
    .mx-card p { font-size: 14px; color: var(--muted); }
    .mx-a { display: grid; grid-template-columns: 8px 1fr; }
    .mx-a .rail { background: var(--green); }
    .mx-a .body, .mx-c .body { padding: 18px; }
    .mx-b { display: flex; flex-direction: column; }
    .mx-b .top {
      height: 92px;
      background-size: cover;
      background-position: center;
    }
    .mx-b .params { padding: 16px 18px 18px; display: grid; grid-template-columns: 1fr 1fr; gap: 8px; font-size: 13px; }
    .mx-c { display: grid; grid-template-columns: 118px 1fr; }
    .mx-c img { width: 100%; height: 100%; object-fit: cover; }
    .products { background: var(--paper); }
    .topic-bar {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-bottom: 24px;
    }
    .topic-bar span {
      background: var(--gypsum);
      border: 1px solid var(--line);
      border-radius: 2px;
      padding: 6px 10px;
      font-size: 13px;
    }
    .product-stage {
      display: grid;
      grid-template-columns: 1.4fr 0.8fr;
      gap: 16px;
    }
    .product-main, .product-side article {
      border: 1px solid var(--line);
      border-radius: var(--radius);
      background: var(--gypsum);
      overflow: hidden;
      position: relative;
    }
    .product-main:hover::before,
    .product-side article:hover::before {
      content: "";
      position: absolute;
      left: 0; top: 0; bottom: 0;
      width: 4px;
      background: var(--green);
      z-index: 2;
    }
    .product-main img, .product-side img { width: 100%; height: 240px; object-fit: cover; transition: transform .35s ease; }
    .product-main:hover img, .product-side article:hover img { transform: scale(1.03); }
    .product-main .body { padding: 22px; }
    .product-side { display: grid; gap: 16px; }
    .product-side .body { padding: 14px 16px 16px; }
    .product-side img { height: 110px; }
    .spec-list { font-size: 14px; color: var(--muted); margin: 10px 0 16px; }
    .spec-list li { padding: 3px 0; }
    .price-tag { color: var(--ochre); font-weight: 650; font-size: 14px; margin-bottom: 12px; }
    .compare { background: var(--gypsum); }
    .compare-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
      margin-bottom: 22px;
    }
    .compare-card {
      position: relative;
      overflow: hidden;
      border-radius: var(--radius);
      border: 1px solid var(--line);
      min-height: 320px;
    }
    .compare-card img { width: 100%; height: 360px; object-fit: cover; }
    .compare-card figcaption {
      position: absolute;
      left: 12px;
      top: 12px;
      background: var(--charcoal);
      color: var(--cream);
      padding: 4px 10px;
      font-size: 12px;
      border-radius: 2px;
    }
    .compare-dl {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 12px;
    }
    .compare-dl div {
      background: var(--paper);
      border: 1px solid var(--line);
      border-radius: var(--radius);
      padding: 14px;
    }
    .compare-dl dt { font-size: 12px; color: var(--muted); }
    .compare-dl dd { margin: 6px 0 0; font-size: 15px; }
    .cases {
      background: var(--charcoal);
      color: var(--cream);
      padding: 108px 0;
    }
    .cases h2, .cases .section-kicker { color: var(--cream); }
    .cases .section-lead { color: rgba(243,238,230,.78); }
    .case-grid {
      display: grid;
      grid-template-columns: 1.2fr 0.8fr;
      gap: 14px;
    }
    .case-item {
      position: relative;
      min-height: 240px;
      overflow: hidden;
      border-radius: var(--radius);
      border: 1px solid rgba(243,238,230,.12);
    }
    .case-item img { width: 100%; height: 100%; object-fit: cover; min-height: 240px; filter: brightness(.78); transition: transform .4s ease; }
    .case-item:hover img { transform: scale(1.03); }
    .case-item .cap {
      position: absolute;
      left: 16px;
      right: 16px;
      bottom: 16px;
    }
    .case-item h3 { color: var(--cream); margin-bottom: 6px; }
    .case-item p { font-size: 14px; color: rgba(243,238,230,.86); }
    .badge-row { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 8px; }
    .badge {
      font-size: 12px;
      border: 1px solid rgba(243,238,230,.3);
      padding: 3px 8px;
      border-radius: 2px;
    }
    .case-stack { display: grid; gap: 14px; }
    .milestones { background: var(--paper); }
    .timeline {
      display: grid;
      grid-template-columns: repeat(6, 1fr);
      gap: 12px;
      position: relative;
      margin-top: 12px;
    }
    .timeline::before {
      content: "";
      position: absolute;
      left: 0; right: 0;
      top: 18px;
      height: 2px;
      background: var(--line);
    }
    .tl-item { position: relative; padding-top: 40px; }
    .tl-item i {
      position: absolute;
      top: 12px;
      left: 0;
      width: 14px;
      height: 14px;
      border-radius: 50%;
      background: var(--green);
      border: 2px solid var(--paper);
    }
    .tl-item.is-now i { background: var(--ochre); }
    .tl-item h3 { font-size: 16px; margin-bottom: 6px; }
    .tl-item p { font-size: 13px; color: var(--muted); }
    .stories { background: var(--gypsum); }
    .story {
      display: grid;
      grid-template-columns: 0.9fr 1.1fr;
      gap: 28px;
      align-items: center;
      margin-bottom: 36px;
    }
    .story:nth-child(even) { grid-template-columns: 1.1fr 0.9fr; }
    .story:nth-child(even) .story-media { order: 2; }
    .story-media { border-radius: var(--radius); overflow: hidden; border: 1px solid var(--line); }
    .story-media img { width: 100%; height: 280px; object-fit: cover; }
    .stats {
      background: #d9cbb6;
      padding: 72px 0;
    }
    .stat-row {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 18px;
      text-align: left;
    }
    .stat-row b {
      display: block;
      font-family: var(--font-serif);
      font-size: 48px;
      line-height: 1;
      color: var(--green);
    }
    .stat-row span { display: block; font-size: 13px; color: var(--muted); margin-top: 8px; }
    .reviews { background: var(--paper); }
    .review-list { display: grid; gap: 14px; }
    .review {
      display: grid;
      grid-template-columns: 10px 1fr 92px;
      gap: 16px;
      background: var(--gypsum);
      border: 1px solid var(--line);
      border-radius: var(--radius);
      padding: 18px;
    }
    .review .quote { font-size: 15px; }
    .review .meta { font-size: 13px; color: var(--muted); margin-top: 8px; }
    .review .side {
      background: linear-gradient(180deg, var(--green), var(--ochre));
      border-radius: 4px;
    }
    .news { background: var(--rock); }
    .news-layout {
      display: grid;
      grid-template-columns: 1.35fr 0.65fr;
      gap: 18px;
    }
    .news-stream { display: grid; gap: 10px; }
    .news-item {
      display: grid;
      grid-template-columns: 54px 1fr;
      gap: 12px;
      background: var(--paper);
      border: 1px solid var(--line);
      border-radius: var(--radius);
      padding: 14px;
    }
    .news-item:hover { box-shadow: inset 4px 0 0 var(--green); }
    .news-date {
      writing-mode: vertical-rl;
      letter-spacing: 0.12em;
      color: var(--ochre);
      font-size: 12px;
      justify-self: center;
    }
    .news-item h3 { font-size: 16px; margin-bottom: 6px; }
    .news-item p { font-size: 14px; color: var(--muted); }
    .hot-panel {
      background: var(--green);
      color: var(--cream);
      border-radius: var(--radius);
      padding: 20px;
    }
    .hot-panel h3 { color: var(--cream); margin-bottom: 12px; }
    .hot-panel ol { margin: 0; padding-left: 18px; }
    .hot-panel li { padding: 8px 0; border-bottom: 1px solid rgba(243,238,230,.15); font-size: 14px; }
    .hot-panel a { color: var(--cream); }
    .more-link { margin-top: 16px; display: inline-flex; }
    .guarantee { background: var(--paper); }
    .flow {
      display: grid;
      grid-template-columns: repeat(5, 1fr);
      gap: 8px;
      margin-bottom: 22px;
    }
    .flow li {
      background: var(--gypsum);
      border: 1px solid var(--line);
      border-radius: var(--radius);
      padding: 14px;
      font-size: 14px;
      position: relative;
    }
    .flow li strong { display: block; font-size: 12px; color: var(--ochre); margin-bottom: 4px; }
    .g-grid {
      display: grid;
      grid-template-columns: 1.1fr 0.9fr;
      gap: 18px;
      align-items: stretch;
    }
    .g-list { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
    .g-list article {
      border: 1px solid var(--line);
      border-radius: var(--radius);
      padding: 16px;
      background: var(--gypsum);
    }
    .g-list h3 { font-size: 16px; margin-bottom: 6px; }
    .g-list p { font-size: 14px; color: var(--muted); }
    .quick { background: var(--gypsum); }
    .tag-row { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 16px; }
    .tag-row button {
      min-height: 44px;
      padding: 0 14px;
      border: 1px solid var(--line);
      background: var(--paper);
      border-radius: var(--radius-sm);
      color: var(--ink);
    }
    .tag-row button.is-on {
      background: var(--green);
      color: var(--cream);
      border-color: var(--green);
    }
    .quick-answer {
      background: var(--paper);
      border: 1px solid var(--line);
      border-radius: var(--radius);
      padding: 18px 20px;
      min-height: 96px;
      color: var(--muted);
    }
    .faq { background: var(--paper); }
    .faq-item { border-bottom: 1px solid var(--line); }
    .faq-item button {
      width: 100%;
      text-align: left;
      background: none;
      border: 0;
      min-height: 56px;
      padding: 14px 0;
      font-size: 16px;
      display: flex;
      justify-content: space-between;
      gap: 12px;
      color: var(--ink);
    }
    .faq-item button span { color: var(--ochre); }
    .faq-item .panel {
      display: none;
      padding: 0 0 16px;
      color: var(--muted);
      font-size: 15px;
    }
    .faq-item.is-open .panel { display: block; }
    .contact {
      background: linear-gradient(120deg, var(--green) 0 46%, var(--gypsum) 46% 100%);
      padding: 96px 0;
    }
    .contact-grid {
      display: grid;
      grid-template-columns: 0.85fr 1.15fr;
      gap: 28px;
      align-items: start;
    }
    .contact-copy { color: var(--cream); padding-right: 12px; }
    .contact-copy h2 { color: var(--cream); }
    .trust li { padding: 8px 0; border-bottom: 1px solid rgba(243,238,230,.18); font-size: 14px; }
    .form-card {
      background: var(--paper);
      border: 1px solid var(--line);
      border-radius: var(--radius);
      padding: 22px;
    }
    .form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
    .field { display: flex; flex-direction: column; gap: 6px; }
    .field.full { grid-column: 1 / -1; }
    .field label { font-size: 13px; }
    .field input, .field select, .field textarea {
      min-height: 44px;
      border: 1px solid var(--line);
      border-radius: var(--radius-sm);
      padding: 8px 10px;
      background: #fff;
    }
    .field textarea { min-height: 90px; resize: vertical; }
    .field.is-error input, .field.is-error select, .field.is-error textarea { border-color: var(--ochre); }
    .form-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 8px; }
    .check { font-size: 13px; color: var(--muted); display: flex; gap: 8px; align-items: flex-start; }
    .form-ok {
      display: none;
      background: var(--green);
      color: var(--cream);
      padding: 12px 14px;
      border-radius: var(--radius-sm);
      margin-bottom: 10px;
    }
    .form-ok.is-show { display: block; }
    .site-footer {
      background: #221e1b;
      color: var(--cream);
      padding: 56px 0 24px;
    }
    .foot-grid {
      display: grid;
      grid-template-columns: 1.2fr 0.9fr 1fr 0.9fr;
      gap: 24px;
      margin-bottom: 28px;
    }
    .site-footer h3 { color: var(--cream); font-size: 16px; margin-bottom: 12px; }
    .site-footer a { color: rgba(243,238,230,.86); display: inline-flex; min-height: 32px; align-items: center; }
    .site-footer p, .site-footer li { font-size: 14px; color: rgba(243,238,230,.78); }
    .foot-copy {
      border-top: 1px solid rgba(243,238,230,.12);
      padding-top: 16px;
      font-size: 13px;
      color: rgba(243,238,230,.6);
      display: flex;
      justify-content: space-between;
      gap: 12px;
      flex-wrap: wrap;
    }
    details.privacy { font-size: 13px; color: rgba(243,238,230,.7); }
    details.privacy summary { cursor: pointer; min-height: 32px; }
    @media (max-width: 1440px) {
      .hero-copy { margin-left: 28px; }
      .stat-row b { font-size: 42px; }
    }
    @media (max-width: 1024px) {
      .nav-links { display: none; }
      .nav-toggle { display: inline-flex; }
      .metric-grid, .matrix-grid, .compare-dl, .stat-row, .flow { grid-template-columns: 1fr 1fr; }
      .split, .product-stage, .case-grid, .news-layout, .g-grid, .contact-grid, .foot-grid { grid-template-columns: 1fr; }
      .story, .story:nth-child(even) { grid-template-columns: 1fr; }
      .story:nth-child(even) .story-media { order: 0; }
      .timeline { grid-template-columns: 1fr 1fr 1fr; }
      .contact { background: var(--gypsum); }
      .contact-copy { background: var(--green); padding: 24px; border-radius: var(--radius); }
      .hero-cut { width: 78%; }
      .mx-c { grid-template-columns: 90px 1fr; }
    }
    @media (max-width: 768px) {
      body { font-size: 16px; }
      .section { padding: 64px 0; }
      .container { width: min(var(--max), calc(100% - 28px)); }
      .hero-slider { min-height: 0; aspect-ratio: 4/5; }
      .hero-cut {
        width: 100%;
        clip-path: polygon(0 0, 100% 0, 100% 86%, 0 100%);
        align-items: flex-end;
      }
      .hero-copy { margin: 0 18px 28px; width: auto; }
      .hero-intro { display: -webkit-box; -webkit-line-clamp: 6; -webkit-box-orient: vertical; overflow: hidden; }
      .campaign-strip .container { flex-direction: column; align-items: flex-start; }
      .compare-grid { display: flex; overflow-x: auto; scroll-snap-type: x mandatory; }
      .compare-card { min-width: 82%; scroll-snap-align: start; }
      .timeline { grid-template-columns: 1fr; }
      .timeline::before { left: 6px; top: 0; bottom: 0; width: 2px; height: auto; right: auto; }
      .tl-item { padding-top: 0; padding-left: 28px; }
      .tl-item i { left: 0; top: 6px; }
      .form-grid, .g-list, .review { grid-template-columns: 1fr; }
      .review .side { height: 8px; }
      .product-main img { height: 190px; }
      .stat-row b { font-size: 36px; }
      .util-right span:nth-child(2) { display: none; }
    }
    @media (max-width: 520px) {
      .metric-grid, .matrix-grid, .flow, .stat-row { grid-template-columns: 1fr 1fr; gap: 8px; }
      .mx-c, .mx-a { grid-template-columns: 1fr; }
      .mx-c img { height: 120px; }
      .hero-actions .btn { width: 100%; }
      .dots button { min-width: 28px; padding: 16px 9px; }
    }
    @media (max-width: 375px) {
      .container { width: calc(100% - 24px); }
      h1 { font-size: 26px; }
      .metric-card .num { font-size: 28px; }
      .logo-text span { display: none; }
    }
    @media (prefers-reduced-motion: reduce) {
      html { scroll-behavior: auto; }
      *, *::before, *::after {
        animation: none !important;
        transition: none !important;
      }
    }