/* roulang page: index */
:root {
      --ink: #161A1F;
      --ink-2: #2A3038;
      --copper: #C48A4A;
      --copper-2: #A87338;
      --teal: #2F7D6D;
      --teal-2: #24675A;
      --orange: #E26A2C;
      --bg: #EEEEE8;
      --card: #F6F4EE;
      --paper: #FBFAF6;
      --dark: #101418;
      --dark-2: #1A2026;
      --line: #D7D2C8;
      --line-2: #C9C2B6;
      --muted: #6B726A;
      --text: #24282E;
      --white: #F8F6F1;
      --shadow: 0 8px 18px rgba(16, 20, 24, 0.07);
      --shadow-sm: 0 6px 12px rgba(16, 20, 24, 0.06);
      --radius: 10px;
      --radius-sm: 6px;
      --radius-xs: 4px;
      --nav-top: 36px;
      --nav-main: 68px;
      --container: 1240px;
      --space: 88px;
      --ease: 180ms ease;
    }
    *, *::before, *::after { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    html, body { margin: 0; padding: 0; max-width: 100%; overflow-x: hidden; }
    body {
      font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", "Source Han Sans SC", sans-serif;
      font-size: 16px;
      line-height: 1.75;
      color: var(--text);
      background: var(--bg);
      min-height: 100%;
    }
    img { max-width: 100%; height: auto; display: block; border: 0; }
    a { color: var(--teal-2); text-decoration: none; transition: color var(--ease), border-color var(--ease), background var(--ease); }
    a:hover { color: var(--copper-2); }
    button, input, select, textarea { font-family: inherit; font-size: 16px; }
    button { cursor: pointer; border: 0; background: none; }
    h1, h2, h3, h4, p { margin: 0; }
    ul, ol { margin: 0; padding: 0; list-style: none; }
    table { border-collapse: collapse; width: 100%; }
    :focus-visible { outline: 2px solid var(--orange); outline-offset: 3px; }
    ::selection { background: rgba(196, 138, 74, 0.28); color: var(--ink); }
    .container { width: min(var(--container), calc(100% - 40px)); margin: 0 auto; }
    .num { font-variant-numeric: tabular-nums lining-nums; letter-spacing: -0.03em; font-weight: 700; }
    .site-header { position: relative; z-index: 50; }
    .nav-top {
      height: var(--nav-top);
      background: var(--ink);
      color: var(--white);
      display: flex;
      align-items: center;
      font-size: 12px;
      letter-spacing: 0.04em;
    }
    .nav-top .container { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
    .brand-rail { display: flex; align-items: center; gap: 10px; white-space: nowrap; }
    .brand-short { color: var(--white); font-weight: 650; }
    .micro-badge {
      display: inline-flex; align-items: center; height: 20px; padding: 0 8px;
      border: 1px solid rgba(196, 138, 74, 0.7); color: var(--copper); border-radius: 2px;
      font-size: 11px; letter-spacing: 0.08em;
    }
    .status-pills { display: flex; gap: 10px; }
    .status-pill {
      display: inline-flex; align-items: center; gap: 6px; color: #C9D0C8;
      padding: 0 8px; height: 22px; border: 1px solid rgba(215, 210, 200, 0.18); border-radius: 2px;
    }
    .status-pill i {
      width: 6px; height: 6px; border-radius: 50%; background: var(--teal); display: inline-block;
      box-shadow: 0 0 0 3px rgba(47, 125, 109, 0.22);
    }
    .status-pill.is-warn i { background: var(--copper); box-shadow: 0 0 0 3px rgba(196, 138, 74, 0.2); }
    .top-contacts { display: flex; align-items: center; gap: 18px; }
    .top-contacts a, .top-contacts span { color: #E7E3DA; }
    .top-contacts a:hover { color: var(--copper); }
    .nav-main {
      height: var(--nav-main);
      background: var(--card);
      border-bottom: 1px solid var(--line);
      position: sticky; top: 0; z-index: 60;
    }
    .nav-main .container { height: 100%; display: flex; align-items: center; justify-content: space-between; gap: 20px; }
    .logo { display: flex; align-items: center; gap: 10px; color: var(--ink); min-height: 44px; }
    .logo-mark {
      width: 36px; height: 36px; border-radius: 6px; background: var(--ink);
      display: grid; place-items: center; box-shadow: inset 0 0 0 1px rgba(196, 138, 74, 0.55);
    }
    .logo-text { font-size: 17px; font-weight: 700; letter-spacing: 0.04em; line-height: 1.2; }
    .nav-links { display: flex; align-items: center; gap: 4px; }
    .nav-links a {
      position: relative; color: var(--ink-2); padding: 10px 10px 12px; font-size: 14px;
      min-height: 44px; display: inline-flex; align-items: center; white-space: nowrap;
    }
    .nav-links a::after {
      content: ""; position: absolute; left: 10px; right: 10px; bottom: 6px; height: 2px;
      background: transparent; transform: scaleX(.4); transition: var(--ease);
    }
    .nav-links a::before {
      content: ""; position: absolute; left: 50%; bottom: 2px; width: 5px; height: 5px; border-radius: 50%;
      background: transparent; transform: translateX(-50%);
    }
    .nav-links a:hover { color: var(--teal-2); }
    .nav-links a.is-active, .nav-links a:hover { color: var(--ink); }
    .nav-links a.is-active::after { background: var(--copper); transform: scaleX(1); }
    .nav-links a.is-active::before { background: var(--teal); }
    .btn {
      display: inline-flex; align-items: center; justify-content: center; gap: 8px;
      min-height: 44px; padding: 0 18px; border-radius: var(--radius-xs);
      font-weight: 650; letter-spacing: 0.04em; transition: var(--ease);
      border: 1px solid transparent; cursor: pointer; text-align: center;
    }
    .btn-primary { background: var(--ink); color: var(--white); border-color: var(--copper); }
    .btn-primary:hover { filter: brightness(1.08); box-shadow: inset 0 0 0 2px var(--copper); color: var(--white); }
    .btn-primary:active { transform: translateY(1px); }
    .btn-ghost { background: transparent; color: var(--white); border-color: rgba(248, 246, 241, 0.45); }
    .btn-ghost:hover { border-color: var(--copper); color: var(--white); }
    .btn-teal { background: var(--teal); color: var(--white); }
    .btn-teal:hover { filter: brightness(1.08); box-shadow: inset 0 0 0 2px var(--copper); color: var(--white); }
    .btn-line { background: var(--paper); color: var(--ink); border-color: var(--line-2); }
    .btn-line:hover { border-color: var(--copper); color: var(--ink); }
    .nav-cta { flex-shrink: 0; }
    .menu-toggle {
      display: none; width: 44px; height: 44px; border: 1px solid var(--line); border-radius: var(--radius-xs);
      align-items: center; justify-content: center; flex-direction: column; gap: 5px;
    }
    .menu-toggle span { width: 18px; height: 2px; background: var(--ink); display: block; }
    .drawer {
      position: fixed; inset: 0; background: rgba(16, 20, 24, 0.46); z-index: 80;
      opacity: 0; pointer-events: none; transition: opacity 200ms ease;
    }
    .drawer.is-open { opacity: 1; pointer-events: auto; }
    .drawer-panel {
      position: absolute; right: 0; top: 0; height: 100%; width: min(360px, 86vw);
      background: var(--card); padding: 24px 20px 32px; transform: translateX(100%);
      transition: transform 220ms ease; overflow: auto; box-shadow: -8px 0 24px rgba(16,20,24,.08);
    }
    .drawer.is-open .drawer-panel { transform: none; }
    .drawer-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 18px; }
    .drawer-links a {
      display: flex; align-items: center; min-height: 48px; padding: 0 8px;
      border-bottom: 1px solid var(--line); color: var(--ink); font-weight: 600;
    }
    .hero {
      position: relative; min-height: 430px; height: 52vh; max-height: 540px;
      background: var(--ink); overflow: hidden;
    }
    .slides { height: 100%; }
    .slide { position: absolute; inset: 0; opacity: 0; visibility: hidden; transition: opacity 420ms ease; }
    .slide.is-active { opacity: 1; visibility: visible; z-index: 1; }
    .slide img { width: 100%; height: 100%; object-fit: cover; filter: saturate(0.86) contrast(1.04); }
    .slide-mask {
      position: absolute; inset: 0;
      background:
        linear-gradient(90deg, rgba(16,20,24,.82) 0%, rgba(16,20,24,.52) 42%, rgba(16,20,24,.18) 100%),
        linear-gradient(0deg, rgba(16,20,24,.35), transparent 42%);
    }
    .slide-content {
      position: relative; z-index: 2; height: 100%; display: flex; flex-direction: column; justify-content: center;
      color: var(--white); padding-top: 24px; padding-bottom: 56px; max-width: 760px; margin-left: max(20px, calc((100% - var(--container)) / 2));
      width: min(760px, calc(100% - 40px));
    }
    .kicker { display: inline-flex; align-items: center; gap: 8px; color: var(--copper); font-size: 13px; letter-spacing: 0.12em; margin-bottom: 10px; }
    .kicker::before { content: ""; width: 18px; height: 1px; background: var(--copper); }
    .hero h1, .hero-title {
      font-size: clamp(28px, 3.2vw, 40px); line-height: 1.28; font-weight: 730; letter-spacing: 0.02em;
      margin-bottom: 12px; max-width: 18em;
    }
    .hero-lead { font-size: 16px; line-height: 1.75; color: #E6E2D8; max-width: 42em; margin-bottom: 18px; }
    .hero-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 16px; }
    .chip-row { display: flex; flex-wrap: wrap; gap: 8px; }
    .chip {
      display: inline-flex; align-items: center; min-height: 32px; padding: 0 10px;
      border: 1px solid rgba(196,138,74,.45); background: rgba(16,20,24,.35);
      color: #F1EDE4; font-size: 12px; letter-spacing: 0.04em; border-radius: 2px;
    }
    .chip strong { color: var(--copper); margin-right: 6px; font-variant-numeric: tabular-nums; }
    .hero-controls {
      position: absolute; z-index: 3; right: max(20px, calc((100% - var(--container)) / 2));
      bottom: 18px; display: flex; align-items: center; gap: 8px;
    }
    .hero-btn {
      width: 44px; height: 44px; border: 1px solid rgba(248,246,241,.35); color: var(--white);
      border-radius: var(--radius-xs); display: grid; place-items: center; background: rgba(16,20,24,.28);
    }
    .hero-btn:hover { border-color: var(--copper); }
    .dots { display: flex; gap: 6px; margin-left: 8px; }
    .dot {
      width: 22px; height: 3px; background: rgba(248,246,241,.35); border-radius: 1px; display: block;
    }
    .dot.is-active { background: var(--copper); }
    .section { padding: var(--space) 0; position: relative; }
    .section-head { margin-bottom: 28px; max-width: 760px; }
    .section-head h2 {
      font-size: clamp(24px, 2.4vw, 28px); line-height: 1.3; color: var(--ink);
      margin: 28px 0 12px; letter-spacing: 0.02em;
    }
    .section-head p { color: var(--muted); }
    .bg-card { background: var(--card); }
    .bg-paper { background: var(--paper); }
    .bg-gray { background: var(--bg); }
    .bg-dark { background: var(--dark); color: #E8E4DA; }
    .bg-dark .section-head h2, .bg-dark h3 { color: var(--white); }
    .bg-dark .section-head p { color: #B7B3AA; }
    .metric-grid {
      display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px;
    }
    .metric-card {
      background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius);
      padding: 20px 22px; box-shadow: var(--shadow-sm); min-height: 148px;
      transition: transform var(--ease), border-color var(--ease);
    }
    .metric-card:hover { transform: translateY(-2px); border-color: var(--copper); }
    .metric-label { font-size: 12px; letter-spacing: 0.08em; color: var(--muted); margin-bottom: 10px; }
    .metric-value { font-size: 28px; color: var(--ink); line-height: 1.1; margin-bottom: 8px; }
    .metric-value em { font-style: normal; font-size: 14px; margin-left: 4px; color: var(--teal); font-weight: 650; }
    .metric-note { font-size: 13px; color: var(--muted); line-height: 1.55; }
    .metric-wide { grid-column: span 2; display: flex; flex-direction: column; justify-content: space-between; }
    .bars { display: grid; gap: 10px; margin-top: 8px; }
    .bar-row { display: grid; grid-template-columns: 92px 1fr 64px; gap: 10px; align-items: center; font-size: 13px; }
    .bar-track { height: 8px; background: #E4DFD4; border-radius: 2px; overflow: hidden; }
    .bar-fill { height: 100%; background: linear-gradient(90deg, var(--teal), var(--copper)); }
    .intro-grid { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 36px; align-items: center; }
    .intro-visual { position: relative; }
    .intro-visual img { width: 100%; height: 430px; object-fit: cover; border-radius: 12px; box-shadow: var(--shadow); }
    .intro-caption {
      position: absolute; left: 16px; bottom: 16px; background: rgba(16,20,24,.78); color: var(--white);
      padding: 8px 12px; font-size: 12px; border-left: 2px solid var(--copper); border-radius: 2px;
    }
    .param-table { width: 100%; font-size: 14px; border: 1px solid var(--line); background: var(--paper); }
    .param-table th, .param-table td { padding: 10px 12px; text-align: left; border-bottom: 1px solid var(--line); }
    .param-table th { width: 38%; color: var(--muted); font-weight: 600; background: #F1EEE6; }
    .param-table tr:last-child th, .param-table tr:last-child td { border-bottom: 0; }
    .check-list { margin: 16px 0 20px; display: grid; gap: 8px; }
    .check-list li { padding-left: 18px; position: relative; color: var(--text); }
    .check-list li::before { content: ""; width: 8px; height: 8px; border: 1px solid var(--copper); position: absolute; left: 0; top: 9px; }
    .service-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
    .service-card {
      background: var(--paper); border: 1px solid var(--line); border-radius: 12px; padding: 22px;
      box-shadow: var(--shadow-sm); min-height: 210px; transition: transform var(--ease), border-color var(--ease);
    }
    .service-card:hover { transform: translateY(-2px); border-color: var(--copper); }
    .service-card:nth-child(5), .service-card:nth-child(6) { grid-column: span 2; min-height: 180px; }
    .icon-line { width: 36px; height: 36px; margin-bottom: 12px; color: var(--teal); }
    .service-card h3 { font-size: 18px; margin-bottom: 8px; color: var(--ink); }
    .service-card p { color: var(--muted); font-size: 15px; margin-bottom: 12px; }
    .qty { display: inline-flex; align-items: center; min-height: 28px; padding: 0 8px; background: #EFE8DC; color: var(--ink); font-size: 12px; border-radius: 2px; }
    .product-grid { display: grid; grid-template-columns: 1.35fr 1fr 1fr; gap: 16px; }
    .product-card {
      background: var(--paper); border: 1px solid var(--line); border-radius: 12px; overflow: hidden;
      box-shadow: var(--shadow-sm); display: flex; flex-direction: column;
    }
    .product-card img { width: 100%; height: 210px; object-fit: cover; }
    .product-card--lead img { height: 260px; }
    .product-body { padding: 22px; display: flex; flex-direction: column; gap: 10px; flex: 1; }
    .product-card h3 { font-size: 20px; color: var(--ink); }
    .spec { font-size: 14px; color: var(--muted); display: grid; gap: 6px; }
    .spec li { padding-left: 12px; position: relative; }
    .spec li::before { content: ""; width: 6px; height: 1px; background: var(--copper); position: absolute; left: 0; top: 11px; }
    .scene { font-size: 14px; color: var(--teal-2); }
    .product-card--lead { box-shadow: var(--shadow); border-color: #C9B089; }
    .table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 10px; background: var(--paper); }
    .compare-table { min-width: 720px; font-size: 14px; }
    .compare-table th, .compare-table td { padding: 14px 16px; text-align: left; border-bottom: 1px solid var(--line); vertical-align: top; }
    .compare-table thead th { background: var(--ink); color: var(--white); font-weight: 600; }
    .compare-table tbody tr:nth-child(even) { background: #F3F0E8; }
    .compare-table td:last-child { color: var(--teal-2); font-weight: 650; }
    .hint { margin-top: 12px; font-size: 13px; color: var(--muted); }
    .cases-grid { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 28px; align-items: stretch; }
    .idea { padding: 12px 8px 0 0; }
    .idea h2 { margin-top: 0; }
    .case-list { display: grid; gap: 14px; }
    .case-card {
      display: grid; grid-template-columns: 148px 1fr; gap: 0; overflow: hidden;
      border: 1px solid rgba(215,210,200,.18); border-radius: 10px; background: var(--dark-2);
      box-shadow: inset 0 0 0 1px rgba(248,246,241,.04);
    }
    .case-card img { width: 148px; height: 100%; object-fit: cover; filter: brightness(0.72); min-height: 132px; }
    .case-body { padding: 16px 18px; }
    .case-body h3 { font-size: 18px; margin-bottom: 6px; }
    .case-body p { color: #B8B3A9; font-size: 14px; }
    .case-card a { color: var(--copper); font-size: 13px; display: inline-flex; min-height: 36px; align-items: center; }
    .timeline { display: grid; grid-template-columns: repeat(6, 1fr); gap: 0; position: relative; }
    .timeline::before {
      content: ""; position: absolute; left: 8%; right: 8%; top: 18px; height: 1px; background: var(--copper);
    }
    .mile { padding: 0 10px 8px; position: relative; }
    .mile-dot {
      width: 12px; height: 12px; border-radius: 50%; background: var(--card); border: 2px solid var(--copper);
      margin-bottom: 16px; position: relative; z-index: 1;
    }
    .mile h3 { font-size: 16px; margin-bottom: 8px; color: var(--ink); }
    .mile p { font-size: 14px; color: var(--muted); margin-bottom: 8px; }
    .mile .qty { background: #E7EEEB; color: var(--teal-2); }
    .story-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
    .story-card { display: grid; grid-template-columns: 200px 1fr; background: var(--paper); border: 1px solid var(--line); border-radius: 12px; overflow: hidden; box-shadow: var(--shadow-sm); }
    .story-card img { width: 100%; height: 100%; object-fit: cover; min-height: 220px; }
    .story-body { padding: 22px; }
    .role { font-size: 13px; color: var(--copper-2); letter-spacing: 0.06em; margin-bottom: 8px; }
    .story-body h3 { font-size: 18px; margin-bottom: 8px; }
    .story-body p { color: var(--muted); margin-bottom: 12px; }
    .stats-bar { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; background: var(--ink); color: var(--white); }
    .stat-item { padding: 36px 20px; text-align: left; border-right: 1px solid rgba(215,210,200,.12); }
    .stat-item:last-child { border-right: 0; }
    .stat-item .num { font-size: 34px; color: var(--copper); display: block; margin-bottom: 6px; }
    .stat-item span { color: #C9C4BA; font-size: 14px; }
    .review-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
    .review-card {
      background: var(--paper); border: 1px solid var(--line); border-radius: 10px; padding: 22px 20px;
      box-shadow: var(--shadow-sm); min-height: 220px; position: relative;
    }
    .review-card::before { content: "“"; font-size: 42px; color: var(--copper); line-height: 1; display: block; margin-bottom: 6px; }
    .review-card p { color: var(--text); margin-bottom: 16px; }
    .review-card cite { font-style: normal; font-size: 13px; color: var(--muted); border-left: 2px solid var(--copper); padding-left: 8px; }
    .news-layout { display: grid; grid-template-columns: 1.15fr 0.85fr; gap: 18px; }
    .news-feature { position: relative; border-radius: 12px; overflow: hidden; min-height: 320px; }
    .news-feature img { width: 100%; height: 100%; object-fit: cover; min-height: 320px; }
    .news-feature-body {
      position: absolute; left: 0; right: 0; bottom: 0; padding: 22px;
      background: linear-gradient(180deg, transparent, rgba(16,20,24,.88));
      color: var(--white);
    }
    .news-feature time { color: var(--copper); font-size: 12px; letter-spacing: 0.08em; }
    .news-feature h3 { font-size: 20px; margin: 6px 0; }
    .news-list { display: grid; gap: 0; background: var(--paper); border: 1px solid var(--line); border-radius: 12px; overflow: hidden; }
    .news-item {
      display: grid; grid-template-columns: 92px 1fr; gap: 12px; padding: 16px 18px;
      border-bottom: 1px solid var(--line); min-height: 92px; align-items: start;
    }
    .news-item:last-child { border-bottom: 0; }
    .news-item time { color: var(--teal-2); font-variant-numeric: tabular-nums; font-size: 13px; padding-top: 4px; }
    .news-item h3 { font-size: 16px; color: var(--ink); margin-bottom: 4px; }
    .news-item p { font-size: 14px; color: var(--muted); }
    .more-news { display: inline-flex; margin-top: 16px; min-height: 44px; align-items: center; color: var(--ink); border-bottom: 2px solid var(--copper); }
    .assure-grid { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 24px; align-items: start; }
    .assure-list { display: grid; gap: 12px; }
    .assure-item {
      display: grid; grid-template-columns: 86px 1fr; gap: 14px; padding: 18px 18px;
      background: var(--paper); border: 1px solid var(--line); border-radius: 10px;
    }
    .badge {
      display: inline-flex; align-items: center; justify-content: center; height: 28px; padding: 0 8px;
      border: 1px solid var(--copper); color: var(--copper-2); font-size: 12px; border-radius: 2px; letter-spacing: 0.06em;
      align-self: start;
    }
    .safety-grid { display: grid; grid-template-columns: 0.92fr 1.08fr; gap: 28px; align-items: center; }
    .safety-grid img { width: 100%; height: 380px; object-fit: cover; border-radius: 12px; box-shadow: var(--shadow); }
    .point-list { display: grid; gap: 12px; }
    .point-list li { padding: 14px 16px; background: var(--paper); border-left: 3px solid var(--teal); border-radius: 0 8px 8px 0; }
    .point-list h3 { font-size: 18px; margin-bottom: 4px; }
    .point-list p { color: var(--muted); font-size: 15px; }
    .chip-board { display: flex; flex-wrap: wrap; gap: 10px; }
    .qchip {
      min-height: 44px; padding: 8px 14px; border: 1px solid var(--line-2); background: var(--paper);
      border-radius: var(--radius-xs); color: var(--ink); font-weight: 600; font-size: 14px;
    }
    .qchip:hover, .qchip.is-on { border-color: var(--copper); color: var(--ink); box-shadow: inset 0 0 0 1px var(--copper); }
    .quick-answer {
      margin-top: 16px; min-height: 56px; padding: 14px 16px; background: #E7EEEB; color: var(--ink);
      border-radius: 8px; display: none;
    }
    .quick-answer.is-show { display: block; }
    .consult-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; align-items: start; }
    .faq-item { border-bottom: 1px solid var(--line); }
    .faq-q {
      width: 100%; text-align: left; min-height: 56px; padding: 12px 36px 12px 0; position: relative;
      font-weight: 700; color: var(--ink); font-size: 16px;
    }
    .faq-q::after {
      content: ""; position: absolute; right: 8px; top: 50%; width: 14px; height: 2px; background: var(--ink);
      transform: translateY(-50%);
    }
    .faq-q::before {
      content: ""; position: absolute; right: 14px; top: 50%; width: 2px; height: 14px; background: var(--ink);
      transform: translateY(-50%); transition: transform 180ms ease;
    }
    .faq-item.is-open .faq-q::before { transform: translateY(-50%) rotate(90deg) scaleY(0); }
    .faq-a { display: none; color: var(--muted); padding: 0 8px 16px 0; }
    .faq-item.is-open .faq-a { display: block; }
    .form-card { background: var(--paper); border: 1px solid var(--line); border-radius: 12px; padding: 24px; box-shadow: var(--shadow); }
    .form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
    .field { display: flex; flex-direction: column; gap: 6px; }
    .field.full { grid-column: span 2; }
    label { font-size: 13px; color: var(--ink-2); font-weight: 650; }
    label .req { color: var(--orange); margin-left: 4px; }
    input, select, textarea {
      width: 100%; min-height: 44px; border: 1px solid var(--line-2); border-radius: var(--radius-xs);
      background: #FFFcf7; padding: 8px 12px; color: var(--ink);
    }
    textarea { min-height: 110px; resize: vertical; line-height: 1.6; }
    input:focus, select:focus, textarea:focus { border-color: var(--teal); box-shadow: 0 0 0 3px rgba(47,125,109,.12); outline: none; }
    .field.error input, .field.error select, .field.error textarea { border-color: var(--orange); box-shadow: 0 0 0 3px rgba(226,106,44,.12); }
    .field.ok input, .field.ok select, .field.ok textarea { border-color: var(--teal); }
    .err { display: none; color: var(--orange); font-size: 12px; }
    .field.error .err { display: block; }
    .form-side { margin-top: 14px; font-size: 14px; color: var(--muted); display: grid; gap: 6px; }
    .form-success {
      display: none; padding: 28px 18px; background: #E7EEEB; border: 1px solid var(--teal); border-radius: 8px;
      color: var(--teal-2); text-align: center;
    }
    .form-success.is-show { display: block; }
    .cta-bar {
      margin-top: 28px; background: var(--dark); color: var(--white); border-radius: 10px;
      display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 18px 22px;
      box-shadow: inset 0 0 0 1px rgba(248,246,241,.06);
    }
    .cta-bar p { color: #C9C4BA; }
    .site-footer { background: var(--ink); color: #D8D3C9; padding: 56px 0 24px; }
    .footer-grid { display: grid; grid-template-columns: 1.3fr 1fr 1.1fr 0.9fr; gap: 28px; margin-bottom: 28px; }
    .footer-brand { font-size: 18px; color: var(--white); font-weight: 700; margin-bottom: 10px; }
    .site-footer a { color: #E7E2D8; }
    .site-footer a:hover { color: var(--copper); }
    .foot-links { display: grid; gap: 8px; }
    .foot-links a { min-height: 32px; display: inline-flex; align-items: center; }
    .copy { border-top: 1px solid rgba(215,210,200,.14); padding-top: 16px; font-size: 13px; color: #A8A49C; display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
    .cells {
      pointer-events: none; position: absolute; inset: auto 0 0 auto; width: 180px; height: 180px; opacity: .35;
      background-image: radial-gradient(circle, rgba(196,138,74,.55) 1px, transparent 1.5px);
      background-size: 16px 16px;
    }
    @media (max-width: 1200px) {
      .product-grid { grid-template-columns: 1fr 1fr; }
      .product-card--lead { grid-column: span 2; }
      .review-grid { grid-template-columns: 1fr 1fr; }
      .metric-grid { grid-template-columns: repeat(3, 1fr); }
      .metric-wide { grid-column: span 3; }
    }
    @media (max-width: 992px) {
      :root { --space: 72px; --nav-main: 64px; }
      .status-pills { display: none; }
      .nav-links { display: none; }
      .menu-toggle { display: inline-flex; }
      .intro-grid, .cases-grid, .story-grid, .news-layout, .assure-grid, .safety-grid, .consult-grid { grid-template-columns: 1fr; }
      .service-grid { grid-template-columns: 1fr 1fr; }
      .service-card:nth-child(5), .service-card:nth-child(6) { grid-column: span 2; }
      .timeline { grid-template-columns: 1fr 1fr 1fr; }
      .timeline::before { display: none; }
      .stats-bar { grid-template-columns: 1fr 1fr; }
      .stat-item { border-bottom: 1px solid rgba(215,210,200,.12); }
      .hero { height: auto; max-height: none; min-height: 470px; }
      .slide-content { margin-left: 20px; padding-bottom: 72px; }
      .footer-grid { grid-template-columns: 1fr 1fr; }
      .story-card { grid-template-columns: 1fr; }
      .story-card img { height: 200px; min-height: 0; }
      .intro-visual img, .safety-grid img { height: 300px; }
    }
    @media (max-width: 768px) {
      :root { --space: 56px; }
      .container { width: min(var(--container), calc(100% - 32px)); }
      .nav-top .top-contacts span:last-child { display: none; }
      .metric-grid, .product-grid, .service-grid, .review-grid { grid-template-columns: 1fr 1fr; }
      .metric-wide, .product-card--lead, .service-card:nth-child(5), .service-card:nth-child(6) { grid-column: span 2; }
      .form-grid { grid-template-columns: 1fr; }
      .field.full { grid-column: span 1; }
      .cta-bar { flex-direction: column; align-items: flex-start; }
      .timeline { grid-template-columns: 1fr; border-left: 2px solid var(--copper); margin-left: 8px; }
      .mile { padding-left: 18px; }
      .hero h1, .hero-title { font-size: 28px; }
      .case-card { grid-template-columns: 1fr; }
      .case-card img { width: 100%; height: 160px; min-height: 0; }
      .copy { flex-direction: column; }
    }
    @media (max-width: 520px) {
      .metric-grid, .product-grid, .service-grid, .review-grid, .stats-bar, .footer-grid { grid-template-columns: 1fr; }
      .metric-wide, .product-card--lead, .service-card:nth-child(5), .service-card:nth-child(6) { grid-column: span 1; }
      .top-contacts { gap: 10px; }
      .brand-short { display: none; }
      .nav-cta span { max-width: 9em; line-height: 1.2; }
      .assure-item { grid-template-columns: 1fr; }
      .bar-row { grid-template-columns: 1fr; }
    }
    @media (max-width: 375px) {
      body { font-size: 15px; }
      .hero { min-height: 520px; }
      .chip { font-size: 11px; }
      .logo-text { font-size: 15px; }
    }
    @media (prefers-reduced-motion: reduce) {
      html { scroll-behavior: auto; }
      *, *::before, *::after { transition: none !important; animation: none !important; }
    }

/* roulang page: index */
:root {
      --ink: #161A1F;
      --copper: #C48A4A;
      --teal: #2F7D6D;
      --orange: #E26A2C;
      --bg: #EEEEE8;
      --card: #F6F4EE;
      --dark: #101418;
      --line: #D7D2C8;
      --paper: #FBFAF6;
      --muted: #5E646C;
      --soft: #8A8478;
      --white: #FFFbf4;
      --ok: #2F7D6D;
      --danger: #E26A2C;
      --shadow: 0 8px 18px rgba(16, 20, 24, 0.07);
      --shadow-sm: 0 6px 12px rgba(16, 20, 24, 0.06);
      --radius: 10px;
      --radius-sm: 6px;
      --radius-xs: 4px;
      --nav-h: 70px;
      --top-h: 36px;
      --container: 1220px;
      --space: 88px;
      --mono: ui-monospace, "SFMono-Regular", Menlo, Consolas, "Liberation Mono", monospace;
      --sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", "Source Han Sans SC", sans-serif;
    }
    *, *::before, *::after { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    html, body { margin: 0; padding: 0; }
    body {
      font-family: var(--sans);
      font-size: 16px;
      line-height: 1.75;
      color: var(--ink);
      background: var(--bg);
      overflow-x: hidden;
    }
    img { max-width: 100%; height: auto; display: block; }
    a { color: inherit; text-decoration: none; }
    button, input, select, textarea { font-family: inherit; font-size: 16px; }
    button { cursor: pointer; border: 0; background: none; }
    h1, h2, h3, p { margin: 0; }
    ul { margin: 0; padding: 0; list-style: none; }
    table { border-collapse: collapse; width: 100%; }
    :focus-visible { outline: 2px solid var(--orange); outline-offset: 2px; }
    ::selection { background: rgba(196, 138, 74, 0.28); }
    .container { width: min(var(--container), calc(100% - 40px)); margin: 0 auto; }
    .skip {
      position: absolute; left: -999px; top: 0;
    }
    .skip:focus { left: 12px; top: 12px; background: #fff; padding: 8px 12px; z-index: 80; }

    .site-header { position: relative; z-index: 50; }
    .topbar {
      height: var(--top-h);
      background: var(--ink);
      color: #E7E2D6;
      display: flex;
      align-items: center;
    }
    .topbar-inner {
      display: grid;
      grid-template-columns: auto 1fr auto;
      align-items: center;
      gap: 18px;
      width: min(var(--container), calc(100% - 40px));
      margin: 0 auto;
    }
    .brand-mini {
      display: flex; align-items: center; gap: 8px;
      font-size: 12px; letter-spacing: 0.08em;
    }
    .brand-mini b { font-weight: 650; color: #F6F4EE; }
    .micro-mark {
      border: 1px solid rgba(196,138,74,.7);
      color: #E8C48A;
      padding: 1px 7px;
      border-radius: 3px;
      font-size: 11px;
      letter-spacing: 0.12em;
    }
    .run-status { display: flex; justify-content: center; gap: 18px; }
    .run-pill {
      display: inline-flex; align-items: center; gap: 6px;
      font-size: 12px; color: #C9C3B6; pointer-events: none;
    }
    .run-pill i {
      width: 7px; height: 7px; border-radius: 50%;
      background: var(--teal); box-shadow: 0 0 0 3px rgba(47,125,109,.22);
    }
    .run-pill.warn i { background: var(--copper); box-shadow: 0 0 0 3px rgba(196,138,74,.2); }
    .top-links { display: flex; align-items: center; gap: 14px; font-size: 12px; }
    .top-links a { color: #E7E2D6; min-height: 32px; display: inline-flex; align-items: center; }
    .top-links a:hover { color: #E8C48A; }
    .top-links span { color: #9AA0A6; }

    .nav-main {
      height: var(--nav-h);
      background: var(--card);
      border-bottom: 1px solid var(--line);
      position: sticky; top: 0; z-index: 48;
    }
    .nav-inner {
      height: 100%;
      display: flex; align-items: center; justify-content: space-between; gap: 18px;
      width: min(var(--container), calc(100% - 40px));
      margin: 0 auto;
    }
    .logo {
      display: flex; align-items: center; gap: 10px;
      min-height: 44px; flex-shrink: 0;
    }
    .logo-mark {
      width: 34px; height: 34px; border-radius: 6px;
      background: var(--ink); color: var(--copper);
      display: grid; place-items: center;
      box-shadow: inset 0 0 0 1px rgba(196,138,74,.55);
    }
    .logo-text { display: flex; flex-direction: column; line-height: 1.15; }
    .logo-text strong { font-size: 16px; font-weight: 720; letter-spacing: 0.04em; }
    .logo-text em { font-style: normal; font-size: 11px; color: var(--teal); letter-spacing: 0.16em; }
    .nav-links { display: flex; align-items: center; gap: 4px; flex-wrap: wrap; justify-content: center; }
    .nav-links a {
      position: relative;
      padding: 10px 10px;
      min-height: 44px;
      display: inline-flex; align-items: center;
      color: var(--ink); font-size: 14px;
    }
    .nav-links a::after {
      content: ""; position: absolute; left: 10px; right: 10px; bottom: 6px;
      height: 2px; background: transparent;
    }
    .nav-links a:hover { color: var(--teal); }
    .nav-links a.is-current { color: var(--ink); }
    .nav-links a.is-current::after { background: var(--copper); }
    .nav-links a.is-current::before {
      content: ""; width: 5px; height: 5px; border-radius: 50%;
      background: var(--teal); position: absolute; left: 50%; bottom: 1px;
      transform: translateX(-50%);
    }
    .nav-cta {
      display: inline-flex; align-items: center; justify-content: center;
      min-height: 44px; padding: 0 16px;
      background: var(--ink); color: #F6F4EE;
      border: 1px solid var(--copper); border-radius: var(--radius-xs);
      font-size: 14px; letter-spacing: 0.04em;
      transition: background .2s ease, box-shadow .2s ease, transform .2s ease;
    }
    .nav-cta:hover, .btn:hover { filter: brightness(1.08); box-shadow: inset 0 0 0 2px var(--copper); }
    .nav-cta:active, .btn:active { transform: translateY(1px); }
    .menu-btn {
      display: none; width: 44px; height: 44px; border-radius: var(--radius-xs);
      border: 1px solid var(--line); align-items: center; justify-content: center; gap: 5px; flex-direction: column;
    }
    .menu-btn span { width: 18px; height: 2px; background: var(--ink); display: block; }

    .drawer {
      position: fixed; inset: 0; background: rgba(16,20,24,.55);
      opacity: 0; pointer-events: none; transition: opacity .2s ease; z-index: 60;
    }
    .drawer.open { opacity: 1; pointer-events: auto; }
    .drawer-panel {
      position: absolute; right: 0; top: 0; bottom: 0; width: min(86vw, 360px);
      background: var(--card); padding: 28px 22px; transform: translateX(12px);
      box-shadow: -10px 0 24px rgba(16,20,24,.12);
    }
    .drawer a {
      display: flex; align-items: center; min-height: 48px;
      border-bottom: 1px solid var(--line); font-size: 16px;
    }
    .drawer .nav-cta { width: 100%; margin-top: 18px; }

    .btn {
      display: inline-flex; align-items: center; justify-content: center;
      min-height: 44px; padding: 0 18px; border-radius: var(--radius-xs);
      border: 1px solid transparent; letter-spacing: 0.03em;
      transition: filter .2s ease, box-shadow .2s ease, transform .2s ease, background .2s ease;
    }
    .btn-primary { background: var(--ink); color: #F6F4EE; border-color: var(--copper); }
    .btn-accent { background: var(--teal); color: #F6F4EE; }
    .btn-ghost { background: transparent; color: #F6F4EE; border-color: rgba(246,244,238,.45); }
    .btn-line { background: transparent; color: var(--ink); border-color: var(--copper); }
    .chip {
      display: inline-flex; align-items: center; gap: 6px;
      min-height: 32px; padding: 0 10px; border-radius: 4px;
      background: rgba(16,20,24,.62); color: #F6F4EE;
      border: 1px solid rgba(196,138,74,.45); font-size: 12px;
      font-variant-numeric: tabular-nums;
    }
    .chip b { color: var(--copper); font-weight: 650; }
    .kicker {
      display: inline-flex; align-items: center; gap: 8px;
      font-size: 12px; letter-spacing: 0.18em; color: var(--teal); text-transform: none;
    }
    .kicker::before { content: ""; width: 18px; height: 1px; background: var(--copper); }
    .section { padding: var(--space) 0; position: relative; }
    .section h2 {
      font-size: 26px; line-height: 1.35; font-weight: 720; letter-spacing: 0.02em;
      margin: 0 0 12px;
    }
    .section .lead {
      max-width: 760px; color: var(--muted); margin-bottom: 28px;
    }
    .head-space { margin-bottom: 28px; }
    .head-space h2 { margin-bottom: 14px; }
    .alt { background: var(--card); }
    .paper { background: var(--paper); }
    .dark { background: var(--dark); color: #E8E2D6; }
    .dark .lead { color: #A8B0B6; }
    .card {
      background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius);
      box-shadow: var(--shadow-sm); padding: 24px;
    }
    .card:hover { transform: translateY(-2px); border-color: var(--copper); box-shadow: var(--shadow); }
    .card, .btn, .nav-cta, .product-card, .service-card, .story-card, .review-card, .news-card {
      transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease, filter .2s ease;
    }

    .hero { padding: 0; background: var(--card); }
    .hero-rail {
      background: #F3F0E8;
      border-bottom: 1px solid var(--line);
      min-height: 42px; display: flex; align-items: center;
    }
    .hero-rail-inner {
      width: min(var(--container), calc(100% - 40px));
      margin: 0 auto; display: flex; gap: 22px; flex-wrap: wrap;
      font-size: 12px; color: var(--muted); letter-spacing: 0.06em;
    }
    .hero-rail-inner span { position: relative; padding-left: 12px; }
    .hero-rail-inner span::before {
      content: ""; position: absolute; left: 0; top: 50%; width: 6px; height: 6px;
      transform: translateY(-50%); background: var(--copper); border-radius: 1px;
    }
    .carousel { position: relative; height: 360px; overflow: hidden; background: var(--ink); }
    .slide { position: absolute; inset: 0; opacity: 0; transition: opacity .45s ease; }
    .slide.is-active { opacity: 1; z-index: 1; }
    .slide img { width: 100%; height: 100%; object-fit: cover; filter: saturate(.85) contrast(1.05); }
    .slide-mask {
      position: absolute; inset: 0;
      background: linear-gradient(90deg, rgba(16,20,24,.78) 0%, rgba(16,20,24,.42) 48%, rgba(16,20,24,.18) 100%);
    }
    .slide-copy {
      position: relative; z-index: 2; height: 100%;
      width: min(var(--container), calc(100% - 40px)); margin: 0 auto;
      display: flex; flex-direction: column; justify-content: center; align-items: flex-start;
      max-width: none;
    }
    .slide-copy h1, .slide-copy .hero-heading {
      font-size: 34px; line-height: 1.28; color: #F6F4EE; font-weight: 740; max-width: 720px;
      text-shadow: 0 2px 16px rgba(0,0,0,.28);
    }
    .slide-copy p {
      margin-top: 12px; max-width: 680px; color: #D9D3C6; font-size: 15px; line-height: 1.75;
    }
    .hero-actions { display: flex; gap: 10px; margin-top: 18px; flex-wrap: wrap; }
    .hero-chips { display: flex; gap: 8px; margin-top: 16px; flex-wrap: wrap; }
    .carousel-nav { position: absolute; inset: 0; z-index: 3; pointer-events: none; }
    .carousel-btn {
      pointer-events: auto; position: absolute; top: 50%; transform: translateY(-50%);
      width: 44px; height: 44px; border-radius: 4px; background: rgba(16,20,24,.45);
      color: #F6F4EE; border: 1px solid rgba(196,138,74,.5);
    }
    .carousel-btn.prev { left: 18px; }
    .carousel-btn.next { right: 18px; }
    .carousel-btn:hover { background: rgba(16,20,24,.7); }
    .dots {
      position: absolute; left: 50%; bottom: 14px; transform: translateX(-50%);
      display: flex; gap: 8px; z-index: 4;
    }
    .dots button {
      width: 22px; height: 3px; background: rgba(246,244,238,.35); border-radius: 1px; min-height: 12px;
      padding: 6px 0;
    }
    .dots button::after { content: ""; display: block; height: 3px; background: currentColor; color: transparent; }
    .dots button.is-on { background: var(--copper); }
    .pause-btn {
      position: absolute; right: 18px; bottom: 12px; z-index: 4;
      min-width: 44px; min-height: 32px; color: #F6F4EE; font-size: 12px;
      border: 1px solid rgba(196,138,74,.45); border-radius: 4px; background: rgba(16,20,24,.4);
    }

    .metrics { background: var(--bg); }
    .metric-grid {
      display: grid; grid-template-columns: repeat(6, 1fr); gap: 14px;
    }
    .metric-card {
      background: var(--paper); border: 1px solid var(--line); border-radius: 8px;
      padding: 18px 16px 16px; box-shadow: var(--shadow-sm);
      background-image: linear-gradient(90deg, rgba(196,138,74,.18) 0 1px, transparent 1px 8px);
      background-size: 8px 100%; background-repeat: repeat-x; background-position: top;
    }
    .metric-card:hover { transform: translateY(-2px); border-color: var(--copper); }
    .metric-card .tag { font-size: 12px; color: var(--teal); letter-spacing: 0.08em; }
    .metric-card .num {
      font-family: var(--mono); font-size: 26px; letter-spacing: -0.04em; margin: 8px 0 4px; font-weight: 700;
    }
    .metric-card .num small { font-size: 12px; color: var(--copper); margin-left: 4px; letter-spacing: 0; }
    .metric-card p { font-size: 13px; color: var(--muted); line-height: 1.55; }
    .mix-bar { margin-top: 18px; background: var(--paper); border: 1px solid var(--line); border-radius: 8px; padding: 16px 18px; }
    .mix-bar h3 { font-size: 14px; margin-bottom: 10px; }
    .bar { display: flex; height: 10px; overflow: hidden; border-radius: 2px; background: #E4DFD4; }
    .bar span:nth-child(1) { width: 62%; background: var(--ink); }
    .bar span:nth-child(2) { width: 24%; background: var(--copper); }
    .bar span:nth-child(3) { width: 14%; background: var(--teal); }
    .mix-legend { display: flex; gap: 18px; flex-wrap: wrap; margin-top: 8px; font-size: 12px; color: var(--muted); }
    .mix-legend i { display: inline-block; width: 8px; height: 8px; margin-right: 6px; }

    .intro-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 36px; align-items: center; }
    .intro-visual { position: relative; }
    .intro-visual img { width: 100%; height: 420px; object-fit: cover; border-radius: 12px; border: 1px solid var(--line); }
    .intro-visual::after {
      content: ""; position: absolute; right: -10px; bottom: -10px; width: 42%; height: 42%;
      border: 1px solid rgba(196,138,74,.45); border-radius: 12px; pointer-events: none;
    }
    .param-table { margin-top: 18px; font-size: 14px; }
    .param-table th, .param-table td { padding: 8px 10px; border-bottom: 1px solid var(--line); text-align: left; }
    .param-table th { width: 34%; color: var(--teal); font-weight: 600; background: #EFEBE1; }
    .intro-points { margin-top: 14px; display: grid; gap: 8px; }
    .intro-points li { padding-left: 16px; position: relative; color: var(--muted); }
    .intro-points li::before { content: ""; width: 7px; height: 7px; background: var(--copper); position: absolute; left: 0; top: 11px; }

    .service-grid {
      display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px;
    }
    .service-card { padding: 22px; min-height: 210px; }
    .service-card.wide { grid-column: span 2; min-height: 200px; background: #F3EEE3; }
    .ico {
      width: 36px; height: 36px; border-radius: 6px; border: 1px solid var(--copper);
      display: grid; place-items: center; margin-bottom: 14px; color: var(--ink);
    }
    .service-card h3 { font-size: 18px; margin-bottom: 8px; }
    .service-card p { color: var(--muted); font-size: 14px; }
    .qty { margin-top: 12px; font-family: var(--mono); font-size: 13px; color: var(--teal); }

    .product-grid {
      display: grid; grid-template-columns: 1.35fr 1fr; grid-template-rows: auto auto; gap: 18px;
    }
    .product-card {
      overflow: hidden; padding: 0; background: var(--paper); border: 1px solid var(--line); border-radius: 12px;
      box-shadow: var(--shadow-sm); display: flex; flex-direction: column;
    }
    .product-card.featured { grid-row: span 2; }
    .product-card img { width: 100%; height: 180px; object-fit: cover; }
    .product-card.featured img { height: 260px; }
    .product-body { padding: 20px 22px 22px; }
    .product-card h3 { font-size: 20px; margin-bottom: 8px; }
    .product-card p { color: var(--muted); font-size: 14px; margin-bottom: 10px; }
    .spec { display: grid; gap: 6px; margin: 10px 0 16px; font-size: 14px; }
    .spec li { display: flex; justify-content: space-between; gap: 10px; border-bottom: 1px dashed var(--line); padding-bottom: 4px; }
    .spec b { font-weight: 600; }
    .flag { display: inline-block; font-size: 11px; letter-spacing: 0.12em; color: var(--orange); border: 1px solid rgba(226,106,44,.4); padding: 2px 7px; border-radius: 3px; margin-bottom: 8px; }

    .compare-wrap { overflow-x: auto; }
    .compare-table { min-width: 680px; background: var(--paper); border: 1px solid var(--line); }
    .compare-table th, .compare-table td { padding: 12px 14px; text-align: left; font-size: 14px; }
    .compare-table thead th { background: var(--ink); color: #F6F4EE; font-weight: 600; }
    .compare-table tbody tr:nth-child(even) { background: #EFEBE3; }
    .compare-table td.good { color: var(--teal); font-weight: 650; }
    .note { margin-top: 12px; font-size: 13px; color: var(--soft); }

    .cases-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 28px; align-items: stretch; }
    .idea { padding-right: 10px; }
    .idea h2 { color: #F6F4EE; }
    .idea p { color: #B7BFC6; max-width: 460px; }
    .case-list { display: grid; gap: 14px; }
    .case-item {
      display: grid; grid-template-columns: 132px 1fr; gap: 14px; align-items: center;
      background: rgba(246,244,238,.04); border: 1px solid rgba(215,210,200,.18);
      border-radius: 10px; padding: 12px; box-shadow: inset 0 0 0 1px rgba(246,244,238,.04);
    }
    .case-item img { width: 132px; height: 92px; object-fit: cover; border-radius: 8px; }
    .case-item h3 { font-size: 18px; color: #F6F4EE; margin-bottom: 4px; }
    .case-item p { font-size: 14px; color: #A8B0B6; }
    .case-item a { color: var(--copper); font-size: 13px; display: inline-flex; min-height: 36px; align-items: center; }

    .timeline {
      display: grid; grid-template-columns: repeat(6, 1fr); gap: 12px;
      position: relative;
    }
    .timeline::before {
      content: ""; position: absolute; left: 8px; right: 8px; top: 18px; height: 1px; background: var(--copper);
    }
    .node { position: relative; padding-top: 40px; }
    .node::before {
      content: ""; width: 11px; height: 11px; border-radius: 50%; background: var(--copper);
      position: absolute; top: 13px; left: 0; box-shadow: 0 0 0 4px rgba(196,138,74,.16);
    }
    .node h3 { font-size: 16px; margin-bottom: 6px; }
    .node p { font-size: 14px; color: var(--muted); }
    .node .qty { margin-top: 8px; }

    .story-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
    .story-card { overflow: hidden; padding: 0; }
    .story-card img { width: 100%; height: 210px; object-fit: cover; }
    .story-body { padding: 20px 22px 22px; }
    .role { font-size: 12px; color: var(--teal); letter-spacing: 0.08em; margin-bottom: 6px; }
    .story-card h3 { font-size: 20px; margin-bottom: 8px; }

    .stats { background: var(--ink); color: #F6F4EE; padding: 42px 0; }
    .stats h2 { color: #F6F4EE; }
    .stats .lead { color: #A8B0B6; }
    .stat-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
    .stat-item { border-left: 1px solid rgba(196,138,74,.45); padding: 8px 0 8px 16px; }
    .stat-item .num { font-family: var(--mono); font-size: 34px; letter-spacing: -0.04em; color: var(--copper); }
    .stat-item p { font-size: 14px; color: #C9C3B6; }

    .review-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
    .review-card {
      padding: 22px 20px; background: var(--paper); border: 1px solid var(--line); border-radius: 10px;
      box-shadow: var(--shadow-sm); position: relative;
    }
    .review-card::before {
      content: "“"; font-size: 48px; color: var(--copper); position: absolute; top: 4px; left: 14px; line-height: 1;
      font-family: Georgia, serif;
    }
    .review-card p { padding-top: 28px; color: var(--muted); font-size: 14px; }
    .review-card b { display: block; margin-top: 14px; font-size: 13px; color: var(--ink); }

    .news-layout { display: grid; grid-template-columns: 1.15fr .85fr; gap: 16px; }
    .news-side { display: grid; gap: 16px; }
    .news-card { overflow: hidden; padding: 0; display: grid; grid-template-columns: 140px 1fr; }
    .news-card.lead { display: block; }
    .news-card img { width: 100%; height: 100%; object-fit: cover; min-height: 110px; }
    .news-card.lead img { height: 240px; }
    .news-body { padding: 16px 16px 18px; }
    .news-body time { font-family: var(--mono); font-size: 12px; color: var(--copper); }
    .news-body h3 { font-size: 18px; margin: 6px 0; }
    .news-body p { font-size: 14px; color: var(--muted); }
    .news-list { margin-top: 16px; background: var(--paper); border: 1px solid var(--line); border-radius: 10px; }
    .news-row {
      display: grid; grid-template-columns: 110px 1fr; gap: 12px; padding: 14px 18px;
      border-bottom: 1px solid var(--line); align-items: center;
    }
    .news-row:last-child { border-bottom: 0; }
    .news-row time { font-family: var(--mono); color: var(--teal); font-size: 13px; }
    .more-link { display: inline-flex; min-height: 44px; align-items: center; color: var(--teal); margin-top: 8px; }

    .assure-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 24px; align-items: start; }
    .assure-list { display: grid; gap: 12px; }
    .assure-item {
      display: grid; grid-template-columns: 88px 1fr; gap: 12px; align-items: start;
      background: var(--paper); border: 1px solid var(--line); border-radius: 10px; padding: 16px 18px;
    }
    .badge {
      min-height: 28px; display: inline-flex; align-items: center; justify-content: center;
      padding: 0 8px; border-radius: 4px; background: var(--ink); color: #E8C48A; font-size: 12px;
    }
    .stamp {
      border: 1px dashed var(--copper); padding: 18px; border-radius: 10px; background: #F3EEE3;
    }
    .stamp li { padding: 6px 0 6px 16px; position: relative; color: var(--muted); }
    .stamp li::before { content: ""; width: 8px; height: 8px; border: 1px solid var(--teal); position: absolute; left: 0; top: 12px; }

    .safety-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 28px; align-items: center; }
    .safety-grid img { width: 100%; height: 360px; object-fit: cover; border-radius: 12px; border: 1px solid var(--line); }
    .safety-list { display: grid; gap: 10px; }
    .safety-list li { background: var(--paper); border-left: 3px solid var(--copper); padding: 12px 14px; border-radius: 0 8px 8px 0; }
    .safety-list h3 { font-size: 18px; margin-bottom: 4px; }
    .safety-list p { font-size: 14px; color: var(--muted); }

    .quick-wrap { display: flex; flex-wrap: wrap; gap: 10px; }
    .qchip {
      min-height: 44px; padding: 0 14px; border-radius: 4px;
      background: var(--paper); border: 1px solid var(--line); color: var(--ink);
    }
    .qchip:hover, .qchip:focus-visible { border-color: var(--copper); color: var(--teal); }
    .qhint { margin-top: 12px; min-height: 28px; color: var(--teal); font-size: 14px; }

    .close-band { background: #E7E3D8; }
    .faq-form { display: grid; grid-template-columns: .9fr 1.1fr; gap: 24px; }
    .acc { border: 1px solid var(--line); background: var(--paper); border-radius: 10px; overflow: hidden; }
    .acc-item + .acc-item { border-top: 1px solid var(--line); }
    .acc-btn {
      width: 100%; text-align: left; padding: 16px 48px 16px 18px; min-height: 56px;
      position: relative; font-weight: 650; color: var(--ink);
    }
    .acc-btn::after, .acc-btn::before {
      content: ""; position: absolute; right: 18px; top: 50%; background: var(--ink);
    }
    .acc-btn::after { width: 14px; height: 2px; transform: translateY(-50%); }
    .acc-btn::before { width: 2px; height: 14px; transform: translate(-6px, -50%); transition: transform .2s ease; }
    .acc-item.open .acc-btn::before { transform: translate(-6px, -50%) rotate(90deg); }
    .acc-panel { display: none; padding: 0 18px 16px; color: var(--muted); font-size: 14px; }
    .acc-item.open .acc-panel { display: block; }

    .form-card { padding: 24px; }
    .form-card h2 { margin-bottom: 8px; }
    .form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px 14px; }
    .field { display: flex; flex-direction: column; gap: 6px; }
    .field.full { grid-column: 1 / -1; }
    label { font-size: 13px; color: var(--ink); }
    label em { color: var(--orange); font-style: normal; }
    input, select, textarea {
      width: 100%; min-height: 44px; border: 1px solid var(--line); border-radius: 4px;
      background: #FFFdf8; padding: 8px 10px; color: var(--ink);
    }
    textarea { min-height: 96px; resize: vertical; }
    input:focus, select:focus, textarea:focus { border-color: var(--teal); }
    .field.error input, .field.error select, .field.error textarea { border-color: var(--orange); }
    .field.ok input, .field.ok select, .field.ok textarea { border-color: var(--teal); }
    .err { color: var(--orange); font-size: 12px; min-height: 16px; }
    .form-aside { margin-top: 14px; font-size: 14px; color: var(--muted); display: grid; gap: 4px; }
    .form-aside a { color: var(--ink); min-height: 32px; display: inline-flex; align-items: center; }
    .form-success {
      display: none; padding: 18px; border: 1px solid var(--teal); background: #E8F3EF; color: var(--ink); border-radius: 8px; margin-bottom: 12px;
    }
    .form-success.show { display: block; }
    .cta-bar {
      margin-top: 18px; background: var(--dark); color: #E8E2D6; border-radius: 8px;
      padding: 16px 18px; display: flex; justify-content: space-between; align-items: center; gap: 12px;
      box-shadow: inset 0 0 0 1px rgba(246,244,238,.08);
    }
    .cta-bar p { font-size: 14px; color: #B7BFC6; }

    .site-footer { background: var(--ink); color: #C9C3B6; padding: 56px 0 24px; }
    .foot-grid { display: grid; grid-template-columns: 1.3fr 1fr 1.1fr 1fr; gap: 24px; }
    .site-footer h3 { color: #F6F4EE; font-size: 16px; margin-bottom: 12px; }
    .site-footer a { color: #C9C3B6; display: inline-flex; min-height: 32px; align-items: center; }
    .site-footer a:hover { color: #E8C48A; }
    .foot-brand strong { color: #F6F4EE; font-size: 18px; display: block; margin-bottom: 8px; }
    .copy { margin-top: 28px; padding-top: 16px; border-top: 1px solid rgba(215,210,200,.16); font-size: 12px; color: #8A9096; display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; }

    .cell-deco::before {
      content: ""; position: absolute; right: 6%; top: 18%; width: 120px; height: 120px; pointer-events: none; opacity: .35;
      background-image: radial-gradient(circle, rgba(196,138,74,.5) 1px, transparent 1.6px);
      background-size: 12px 12px;
    }

    @media (max-width: 1200px) {
      .metric-grid { grid-template-columns: repeat(3, 1fr); }
      .service-grid { grid-template-columns: repeat(2, 1fr); }
      .review-grid { grid-template-columns: repeat(2, 1fr); }
      .slide-copy h1, .slide-copy .hero-heading { font-size: 30px; }
    }
    @media (max-width: 992px) {
      .topbar-inner { grid-template-columns: auto 1fr; }
      .run-status { display: none; }
      .nav-links { display: none; }
      .menu-btn { display: flex; }
      .intro-grid, .cases-grid, .safety-grid, .assure-grid, .faq-form, .news-layout, .product-grid {
        grid-template-columns: 1fr;
      }
      .product-card.featured { grid-row: auto; }
      .timeline { grid-template-columns: 1fr 1fr; }
      .timeline::before { display: none; }
      .stat-row { grid-template-columns: 1fr 1fr; }
      .foot-grid { grid-template-columns: 1fr 1fr; }
      .carousel { height: 400px; }
    }
    @media (max-width: 768px) {
      :root { --space: 64px; }
      .top-links span { display: none; }
      .hero-rail-inner { gap: 10px; }
      .metric-grid, .story-grid { grid-template-columns: 1fr 1fr; }
      .service-card.wide { grid-column: span 1; }
      .form-grid { grid-template-columns: 1fr; }
      .cta-bar { flex-direction: column; align-items: flex-start; }
      .news-card { grid-template-columns: 1fr; }
      .news-card img { height: 160px; }
      .case-item { grid-template-columns: 1fr; }
      .case-item img { width: 100%; height: 160px; }
      .slide-copy h1, .slide-copy .hero-heading { font-size: 26px; }
      .section h2 { font-size: 24px; }
      .carousel-btn.prev { left: 8px; }
      .carousel-btn.next { right: 8px; }
    }
    @media (max-width: 520px) {
      .container, .topbar-inner, .nav-inner, .slide-copy, .hero-rail-inner { width: calc(100% - 28px); }
      .metric-grid, .story-grid, .stat-row, .review-grid, .foot-grid, .timeline { grid-template-columns: 1fr; }
      .carousel { height: auto; min-height: 460px; }
      .slide { position: relative; opacity: 0; height: 0; overflow: hidden; }
      .slide.is-active { height: auto; opacity: 1; min-height: 460px; }
      .slide img { height: 460px; }
      .intro-visual img, .safety-grid img { height: 240px; }
      .logo-text strong { font-size: 15px; }
      .nav-cta span { display: none; }
      .copy { flex-direction: column; }
    }
    @media (max-width: 375px) {
      body { font-size: 15px; }
      .slide-copy h1, .slide-copy .hero-heading { font-size: 22px; }
      .hero-actions { width: 100%; }
      .hero-actions .btn { flex: 1; }
    }
    @media (prefers-reduced-motion: reduce) {
      html { scroll-behavior: auto; }
      * { transition: none !important; }
    }