/* roulang page: index */
:root {
      --brand: #0C7A74;
      --brand-2: #129A93;
      --brand-dark: #085E59;
      --accent: #E08912;
      --accent-2: #D35400;
      --bg: #F2F5F6;
      --bg-tint: #E7F2F1;
      --surface: #FFFFFF;
      --ink: #171C22;
      --ink-2: #222A31;
      --text: #1C2428;
      --muted: #5B676C;
      --line: #D5DEE0;
      --danger: #C0392B;
      --ok: #1E8A4C;
      --radius-xl: 26px;
      --radius-lg: 22px;
      --radius-md: 14px;
      --radius-sm: 10px;
      --radius-pill: 999px;
      --shadow: 0 12px 28px rgba(23, 28, 34, 0.08);
      --shadow-sm: 0 8px 18px rgba(23, 28, 34, 0.06);
      --shadow-hover: 0 16px 34px rgba(23, 28, 34, 0.12);
      --container: 1220px;
      --header-top: 42px;
      --header-main: 72px;
      --focus: 0 0 0 2px #fff, 0 0 0 4px #0C7A74;
      --font: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
    }
    *, *::before, *::after { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    body {
      margin: 0;
      font-family: var(--font);
      font-size: 16px;
      line-height: 1.75;
      color: var(--text);
      background: var(--bg);
      overflow-x: hidden;
    }
    body.nav-lock { overflow: hidden; }
    img { max-width: 100%; display: block; height: auto; }
    a { color: var(--brand); text-decoration: none; transition: color .2s ease, opacity .2s ease; }
    a:hover { color: var(--brand-dark); }
    button, input, select, textarea { font-family: inherit; font-size: 16px; }
    button { cursor: pointer; }
    h1, h2, h3, p, ul, ol { margin: 0; }
    ul { padding: 0; list-style: none; }
    :focus-visible { outline: none; box-shadow: var(--focus); }
    .container { width: min(100% - 40px, var(--container)); margin: 0 auto; }
    .skip { position: absolute; left: -999px; top: 0; }
    .skip:focus { left: 16px; top: 16px; z-index: 80; background: #fff; padding: 8px 12px; border-radius: 8px; }
    .badge {
      display: inline-flex; align-items: center; gap: 6px;
      padding: 4px 12px; border-radius: var(--radius-pill);
      background: linear-gradient(90deg, #0C7A74, #E08912);
      color: #fff; font-size: 12px; font-weight: 600; letter-spacing: .04em;
      line-height: 1.4; white-space: nowrap;
    }
    .badge.ghost {
      background: #FFF6E8; color: var(--accent-2); border: 1px solid #F3D7A8;
    }
    .badge.teal { background: var(--bg-tint); color: var(--brand-dark); border: 1px solid #B9D9D6; }
    .badge.num {
      background: #fff; color: var(--accent-2); border: 1px solid #F0D2A0;
      font-variant-numeric: tabular-nums; font-weight: 700;
    }
    .btn {
      display: inline-flex; align-items: center; justify-content: center; gap: 8px;
      min-height: 48px; padding: 12px 22px; border-radius: var(--radius-md);
      border: 1px solid transparent; font-weight: 600; letter-spacing: .02em;
      transition: transform .2s ease, box-shadow .2s ease, background .2s ease, border-color .2s ease, color .2s ease;
    }
    .btn:hover { transform: translateY(-2px); }
    .btn:active { transform: translateY(0); }
    .btn-primary { background: var(--brand); color: #fff; box-shadow: var(--shadow-sm); }
    .btn-primary:hover { background: var(--brand-dark); border-color: var(--accent); color: #fff; }
    .btn-secondary { background: #fff; color: var(--brand); border-color: var(--brand); }
    .btn-secondary:hover { border-color: var(--accent); color: var(--brand-dark); }
    .btn-ghost { background: rgba(255,255,255,.12); color: #fff; border-color: rgba(255,255,255,.35); }
    .btn-ghost:hover { background: #fff; color: var(--brand-dark); }
    .btn-invert { background: #fff; color: var(--ink); }
    .btn-invert:hover { border-color: var(--accent); }
    .section { padding: 88px 0; scroll-margin-top: 96px; }
    .section-tint { background: var(--bg-tint); }
    .section-white { background: var(--surface); }
    .section-head { max-width: 760px; margin-bottom: 36px; }
    .section-head h2 { font-size: 30px; line-height: 1.3; font-weight: 700; letter-spacing: .01em; }
    .section-head p { margin-top: 12px; color: var(--muted); font-size: 16px; }
    .kicker { display: inline-flex; align-items: center; gap: 8px; color: var(--brand); font-size: 13px; font-weight: 700; letter-spacing: .12em; text-transform: none; margin-bottom: 10px; }
    .kicker::before { content: ""; width: 18px; height: 3px; border-radius: 2px; background: linear-gradient(90deg, var(--brand), var(--accent)); }
    .card {
      background: var(--surface); border-radius: var(--radius-xl); box-shadow: var(--shadow);
      border: 1px solid rgba(23,28,34,.05); position: relative; overflow: hidden;
      transition: transform .2s ease, box-shadow .2s ease;
    }
    .card:hover { transform: translateY(-5px); box-shadow: var(--shadow-hover); }
    .card .stripe { position: absolute; left: 0; right: 0; top: 0; height: 4px; background: linear-gradient(90deg, var(--brand), var(--accent)); }
    .card-body { padding: 28px; }
    .site-header { position: sticky; top: 0; z-index: 40; background: rgba(242,245,246,.96); backdrop-filter: none; border-bottom: 1px solid var(--line); }
    .topbar {
      background: var(--ink); color: #D5DDDF; font-size: 13px;
      min-height: var(--header-top); display: flex; align-items: center;
      transition: max-height .25s ease, opacity .25s ease, padding .25s ease;
    }
    .topbar-inner { width: min(100% - 40px, var(--container)); margin: 0 auto; display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 8px 0; }
    .topbar a { color: #EEF3F4; }
    .topbar a:hover { color: #F6C56A; }
    .top-links { display: flex; gap: 22px; flex-wrap: wrap; align-items: center; }
    .nav-main { min-height: var(--header-main); display: flex; align-items: center; }
    .nav-inner { width: min(100% - 40px, var(--container)); margin: 0 auto; display: flex; align-items: center; gap: 24px; }
    .logo { display: flex; align-items: center; gap: 10px; color: var(--ink); min-height: 44px; flex-shrink: 0; }
    .logo:hover { color: var(--brand-dark); }
    .logo-mark {
      width: 40px; height: 40px; border-radius: 12px; display: grid; place-items: center;
      background: linear-gradient(135deg, var(--brand), #0FA39A 55%, var(--accent));
      color: #fff; font-weight: 700; font-size: 16px;
    }
    .logo-text { display: flex; flex-direction: column; line-height: 1.15; }
    .logo-text strong { font-size: 16px; }
    .logo-text span { font-size: 12px; color: var(--muted); font-weight: 500; }
    .nav-links { display: flex; align-items: center; gap: 4px; margin-left: auto; }
    .nav-links a {
      color: var(--text); font-size: 14px; font-weight: 500; padding: 10px 12px; min-height: 44px;
      display: inline-flex; align-items: center; position: relative;
    }
    .nav-links a::after {
      content: ""; position: absolute; left: 12px; right: 12px; bottom: 6px; height: 2px;
      background: var(--brand); transform: scaleX(0); transform-origin: left; transition: transform .2s ease;
    }
    .nav-links a:hover, .nav-links a.is-active { color: var(--brand-dark); }
    .nav-links a:hover::after, .nav-links a.is-active::after { transform: scaleX(1); }
    .nav-cta { margin-left: 8px; flex-shrink: 0; }
    .menu-toggle {
      display: none; width: 44px; height: 44px; border: 1px solid var(--line); border-radius: 12px;
      background: #fff; align-items: center; justify-content: center; flex-direction: column; gap: 5px;
    }
    .menu-toggle span { width: 18px; height: 2px; background: var(--ink); display: block; }
    .header-phone { display: none; color: var(--brand-dark); font-weight: 700; font-size: 14px; }
    .site-header.is-compact .topbar { max-height: 0; opacity: 0; overflow: hidden; padding: 0; min-height: 0; }
    .site-header.is-compact .header-phone { display: inline-flex; }
    .drawer {
      position: fixed; inset: 0 0 0 auto; width: min(86vw, 360px); background: #fff; z-index: 50;
      transform: translateX(100%); transition: transform .28s ease; box-shadow: -12px 0 40px rgba(0,0,0,.12);
      padding: 24px; display: flex; flex-direction: column; gap: 8px;
    }
    .drawer.is-open { transform: translateX(0); }
    .drawer a { min-height: 48px; display: flex; align-items: center; color: var(--text); border-bottom: 1px solid var(--line); font-weight: 600; }
    .drawer-overlay { position: fixed; inset: 0; background: rgba(23,28,34,.45); z-index: 45; opacity: 0; pointer-events: none; transition: opacity .2s ease; }
    .drawer-overlay.is-open { opacity: 1; pointer-events: auto; }
    .hero { position: relative; min-height: 86vh; color: #fff; overflow: hidden; isolation: isolate; }
    .hero-slides { position: absolute; inset: 0; }
    .hero-slides img {
      position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover;
      opacity: 0; transform: scale(1.04); transition: opacity .8s ease, transform 6s ease;
    }
    .hero-slides img.is-active { opacity: 1; transform: scale(1); }
    .hero-mask {
      position: absolute; inset: 0;
      background:
        linear-gradient(90deg, rgba(17,24,28,.82) 0%, rgba(12,122,116,.38) 46%, rgba(17,24,28,.28) 100%),
        linear-gradient(180deg, rgba(17,24,28,.15) 0%, rgba(17,24,28,.55) 100%);
    }
    .hero-grid {
      position: absolute; inset: 0; opacity: .18;
      background-image: linear-gradient(rgba(255,255,255,.12) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.12) 1px, transparent 1px);
      background-size: 48px 48px; pointer-events: none;
    }
    .hero-inner {
      position: relative; z-index: 2; width: min(100% - 40px, var(--container)); margin: 0 auto;
      min-height: 86vh; display: grid; align-content: center; padding: 72px 0 88px; max-width: 820px;
    }
    .brand-chip { display: inline-flex; align-items: center; gap: 8px; padding: 6px 12px; border-radius: var(--radius-pill); background: rgba(255,255,255,.12); border: 1px solid rgba(255,255,255,.2); font-size: 13px; font-weight: 600; width: max-content; }
    .brand-chip i { width: 8px; height: 8px; border-radius: 50%; background: #3DDC97; box-shadow: 0 0 0 4px rgba(61,220,151,.18); display: inline-block; }
    .hero h1 { font-size: 46px; line-height: 1.18; margin: 16px 0 18px; font-weight: 700; letter-spacing: .01em; }
    .hero-lead { font-size: 16px; line-height: 1.85; color: #E7EEEF; max-width: 680px; }
    .hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; align-items: center; }
    .play-btn {
      width: 64px; height: 64px; border-radius: 50%; border: 0; background: #fff; color: var(--brand-dark);
      display: grid; place-items: center; box-shadow: 0 10px 24px rgba(0,0,0,.18); margin-left: 6px;
    }
    .play-btn:hover { transform: translateY(-2px) scale(1.03); }
    .play-btn svg { width: 22px; height: 22px; }
    .hero-caption { margin-top: 22px; font-size: 13px; color: #D5E4E3; display: flex; gap: 16px; flex-wrap: wrap; }
    .hero-player {
      position: absolute; left: 0; right: 0; bottom: 0; z-index: 3;
      display: flex; align-items: center; gap: 14px; padding: 14px 5vw 18px;
      background: linear-gradient(180deg, transparent, rgba(12,18,22,.72));
    }
    .hero-dots { display: flex; gap: 8px; }
    .hero-dots button {
      width: 28px; height: 4px; border: 0; border-radius: 4px; background: rgba(255,255,255,.35); padding: 0; min-height: 28px;
      position: relative;
    }
    .hero-dots button::after { content: ""; position: absolute; left: 0; right: 0; top: 12px; height: 4px; border-radius: 4px; background: inherit; }
    .hero-dots button.is-active { background: #fff; }
    .hero-progress { flex: 1; height: 3px; background: rgba(255,255,255,.2); border-radius: 3px; overflow: hidden; max-width: 280px; }
    .hero-progress span { display: block; height: 100%; width: 0; background: linear-gradient(90deg, var(--brand-2), var(--accent)); }
    .hero-progress.is-run span { animation: load 6.4s linear; }
    @keyframes load { from { width: 0; } to { width: 100%; } }
    .bento { display: grid; grid-template-columns: 1.2fr 1fr 1fr; grid-template-rows: auto auto; gap: 18px; }
    .metric { min-height: 168px; }
    .metric .card-body { height: 100%; display: flex; flex-direction: column; justify-content: space-between; }
    .metric .label { color: var(--muted); font-size: 14px; }
    .metric .value { font-size: 40px; font-weight: 700; letter-spacing: -.03em; font-variant-numeric: tabular-nums; line-height: 1.1; color: var(--ink); }
    .metric .value small { font-size: 16px; color: var(--accent-2); margin-left: 4px; font-weight: 700; }
    .bar { height: 8px; background: #E6ECEC; border-radius: 8px; overflow: hidden; margin-top: 14px; }
    .bar > i { display: block; height: 100%; border-radius: 8px; background: linear-gradient(90deg, var(--brand), var(--accent)); }
    .metric.wide { grid-column: 1 / 2; grid-row: 1 / 3; background:
      linear-gradient(180deg, rgba(12,122,116,.08), rgba(255,255,255,.92)),
      url("/assets/images/625c78eed57d618a.jpg") center/cover; }
    .metric.wide .value { font-size: 52px; color: var(--brand-dark); }
    .split { display: grid; grid-template-columns: 1.05fr .95fr; gap: 40px; align-items: center; }
    .media-frame { border-radius: 28px; overflow: hidden; box-shadow: var(--shadow); position: relative; }
    .media-frame img { width: 100%; height: 100%; object-fit: cover; aspect-ratio: 16/10; }
    .media-tag { position: absolute; left: 16px; bottom: 16px; }
    .spec-list { margin-top: 20px; display: grid; gap: 10px; }
    .spec-list li { display: flex; gap: 10px; align-items: flex-start; color: var(--text); font-size: 15px; }
    .spec-list li::before { content: ""; width: 8px; height: 8px; margin-top: 9px; border-radius: 50%; background: var(--accent); flex-shrink: 0; }
    .protocol { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; }
    .ladder { display: grid; grid-template-columns: .9fr 1.05fr 1.2fr; gap: 16px; align-items: stretch; }
    .ladder .card { padding: 0; }
    .ladder article { padding: 28px; }
    .ladder .tier { font-size: 13px; color: var(--brand); font-weight: 700; }
    .ladder h3 { font-size: 22px; margin: 8px 0 10px; }
    .ladder p { color: var(--muted); font-size: 15px; }
    .ladder .price { margin-top: 18px; font-size: 28px; font-weight: 700; font-variant-numeric: tabular-nums; }
    .ladder .price span { font-size: 13px; color: var(--muted); font-weight: 500; display: block; }
    .ladder article:nth-child(2) { margin-top: 18px; }
    .ladder article:nth-child(3) { margin-top: 36px; background: var(--ink); color: #fff; }
    .ladder article:nth-child(3) p, .ladder article:nth-child(3) .tier { color: #C5D3D4; }
    .matrix { display: grid; grid-template-columns: 1.25fr 1.25fr 1fr; grid-template-rows: auto auto; gap: 16px; }
    .matrix .big { grid-row: span 2; }
    .matrix .thumb { width: 100%; aspect-ratio: 16/10; object-fit: cover; }
    .matrix h3 { font-size: 20px; margin: 12px 0 8px; }
    .matrix p { color: var(--muted); font-size: 15px; }
    .matrix .mini .thumb { aspect-ratio: 16/8; }
    .products { display: grid; grid-template-columns: 1.4fr .8fr .8fr; gap: 16px; }
    .product { min-height: 100%; display: flex; flex-direction: column; }
    .product img { width: 100%; aspect-ratio: 16/10; object-fit: cover; }
    .product .card-body { flex: 1; display: flex; flex-direction: column; }
    .product p { color: var(--muted); font-size: 15px; margin: 8px 0 16px; }
    .product .btn { margin-top: auto; align-self: flex-start; }
    .compare-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
    .compare-col { padding: 28px; border-radius: 26px; }
    .compare-col.before { background: #EEF1F2; }
    .compare-col.after { background: var(--ink); color: #fff; }
    .compare-col h3 { font-size: 22px; margin-bottom: 8px; }
    .compare-col p { color: inherit; opacity: .78; margin-bottom: 18px; }
    .stat-row { display: flex; justify-content: space-between; align-items: center; gap: 12px; padding: 12px 0; border-bottom: 1px solid rgba(23,28,34,.08); font-size: 15px; }
    .after .stat-row { border-bottom-color: rgba(255,255,255,.08); }
    .pkg { margin-top: 28px; overflow-x: auto; }
    .pkg table { width: 100%; border-collapse: collapse; min-width: 720px; background: #fff; border-radius: 22px; overflow: hidden; box-shadow: var(--shadow); }
    .pkg th, .pkg td { padding: 14px 16px; text-align: left; border-bottom: 1px solid var(--line); font-size: 14px; }
    .pkg th { background: var(--bg-tint); font-weight: 700; }
    .pkg td.hl { color: var(--brand-dark); font-weight: 700; }
    .window-band {
      border-radius: 28px; overflow: hidden; display: grid; grid-template-columns: 1.2fr .8fr;
      background: linear-gradient(120deg, #0C7A74 0%, #116964 48%, #D35400 140%); color: #fff;
    }
    .window-band > div { padding: 36px; }
    .window-band h2 { font-size: 30px; }
    .slots { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
    .slot { background: rgba(255,255,255,.1); border: 1px solid rgba(255,255,255,.16); border-radius: 18px; padding: 16px; }
    .slot strong { display: block; font-size: 28px; font-variant-numeric: tabular-nums; }
    .cases { position: relative; background: var(--ink); color: #fff; overflow: hidden; }
    .cases::before {
      content: ""; position: absolute; inset: auto -10% -20% auto; width: 420px; height: 420px;
      background: radial-gradient(circle, rgba(18,154,147,.28), transparent 70%); pointer-events: none;
    }
    .case-grid { display: grid; grid-template-columns: 1.4fr .8fr; gap: 16px; }
    .case-main { min-height: 420px; position: relative; border-radius: 26px; overflow: hidden; }
    .case-main img, .case-side img { width: 100%; height: 100%; object-fit: cover; }
    .case-main .shade, .case-side .shade {
      position: absolute; inset: 0; padding: 24px; display: flex; flex-direction: column; justify-content: flex-end;
      background: linear-gradient(180deg, rgba(17,24,28,.05), rgba(17,24,28,.78));
    }
    .case-side { display: grid; gap: 16px; }
    .case-mini { position: relative; min-height: 202px; border-radius: 22px; overflow: hidden; }
    .scenes { display: grid; grid-template-columns: 1.3fr 1fr 1fr; grid-template-rows: 1fr 1fr; gap: 16px; }
    .scene { min-height: 220px; position: relative; color: #fff; }
    .scene img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
    .scene .shade { position: absolute; inset: 0; background: linear-gradient(180deg, rgba(12,22,24,.1), rgba(12,22,24,.78)); padding: 22px; display: flex; flex-direction: column; justify-content: flex-end; }
    .scene.featured { grid-row: span 2; min-height: 460px; }
    .timeline { display: grid; grid-template-columns: repeat(5, 1fr); gap: 12px; position: relative; }
    .timeline::before {
      content: ""; position: absolute; left: 8%; right: 8%; top: 28px; height: 2px;
      background: linear-gradient(90deg, var(--brand), var(--accent));
    }
    .node { background: #fff; border-radius: 22px; padding: 22px 18px 20px; box-shadow: var(--shadow); position: relative; }
    .node .dot { width: 14px; height: 14px; border-radius: 50%; background: var(--accent); border: 3px solid #fff; box-shadow: 0 0 0 3px var(--brand); margin-bottom: 18px; }
    .node h3 { font-size: 18px; margin-bottom: 6px; }
    .node p { color: var(--muted); font-size: 14px; }
    .reviews { display: grid; grid-template-columns: 1.15fr 1fr 1fr; gap: 16px; }
    .quote { font-size: 15px; color: var(--text); }
    .who { margin-top: 16px; color: var(--muted); font-size: 13px; }
    .story { grid-column: 1 / 2; }
    .news-list { display: grid; gap: 14px; }
    .news-item { display: grid; grid-template-columns: 220px 1fr; gap: 18px; align-items: center; padding: 14px; border-radius: 22px; background: #fff; box-shadow: var(--shadow-sm); }
    .news-item img { width: 100%; height: 128px; object-fit: cover; border-radius: 16px; }
    .news-item h3 { font-size: 18px; margin-bottom: 6px; }
    .news-item p { color: var(--muted); font-size: 14px; }
    .news-item time { font-size: 12px; color: var(--brand); font-weight: 700; }
    .more-link { display: inline-flex; margin-top: 18px; min-height: 44px; align-items: center; font-weight: 700; }
    .icons { display: grid; grid-template-columns: repeat(5, 1fr); gap: 14px; }
    .icon-card { text-align: left; padding: 24px; }
    .icon-mark { width: 44px; height: 44px; border-radius: 14px; display: grid; place-items: center; background: var(--bg-tint); color: var(--brand-dark); margin-bottom: 12px; }
    .icon-card h3 { font-size: 18px; margin-bottom: 6px; }
    .icon-card p { color: var(--muted); font-size: 14px; }
    .qa-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
    .qa { padding: 20px 22px; border-radius: 18px; background: #fff; border: 1px solid var(--line); }
    .qa strong { display: inline-block; margin-bottom: 6px; color: var(--brand-dark); font-size: 13px; }
    .qa p { font-size: 14px; color: var(--text); }
    .faq-item { background: #fff; border-radius: 18px; margin-bottom: 10px; box-shadow: var(--shadow-sm); overflow: hidden; }
    .faq-item button {
      width: 100%; text-align: left; background: none; border: 0; min-height: 58px; padding: 16px 20px;
      display: flex; justify-content: space-between; gap: 12px; font-weight: 700; color: var(--ink);
    }
    .faq-item .chev { width: 22px; height: 22px; border-radius: 50%; border: 1px solid var(--line); display: grid; place-items: center; transition: transform .2s ease; flex-shrink: 0; }
    .faq-item.is-open .chev { transform: rotate(45deg); background: var(--bg-tint); }
    .faq-panel { display: none; padding: 0 20px 18px; color: var(--muted); }
    .faq-item.is-open .faq-panel { display: block; }
    .convert { padding-bottom: 96px; }
    .convert-wrap { display: grid; grid-template-columns: .9fr 1.1fr; gap: 20px; }
    .addons { display: grid; gap: 12px; }
    .addon { padding: 22px; background: var(--ink); color: #fff; border-radius: 22px; }
    .addon p { color: #C9D4D6; font-size: 14px; margin-top: 6px; }
    .form-card { background: #fff; border-radius: 26px; padding: 28px; 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: 1 / -1; }
    .field label { font-size: 13px; font-weight: 700; }
    .field input, .field select, .field textarea {
      min-height: 46px; border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 10px 12px; background: #FBFCFC;
    }
    .field textarea { min-height: 110px; resize: vertical; }
    .field input:focus, .field select:focus, .field textarea:focus { border-color: var(--brand); box-shadow: 0 0 0 3px rgba(12,122,116,.12); outline: none; }
    .field.is-error input, .field.is-error select, .field.is-error textarea { border-color: var(--danger); background: #FDF4F3; }
    .err { color: var(--danger); font-size: 12px; display: none; }
    .field.is-error .err { display: block; }
    .form-ok { display: none; padding: 14px 16px; border-radius: 12px; background: #E9F7EE; color: var(--ok); font-weight: 600; margin-bottom: 12px; }
    .form-ok.show { display: block; }
    .contact-side { margin-top: 16px; color: var(--muted); font-size: 14px; display: grid; gap: 4px; }
    .site-footer { background: #12171C; color: #C5D0D3; padding: 56px 0 24px; }
    .foot-grid { display: grid; grid-template-columns: 1.3fr 1fr 1.1fr .9fr; gap: 28px; }
    .site-footer h3 { color: #fff; font-size: 16px; margin-bottom: 12px; }
    .site-footer a { color: #C5D0D3; display: inline-flex; min-height: 36px; align-items: center; }
    .site-footer a:hover { color: #F3C56A; }
    .copy { margin-top: 28px; padding-top: 16px; border-top: 1px solid rgba(255,255,255,.08); font-size: 13px; color: #8B979B; display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
    .lamp { width: 8px; height: 8px; border-radius: 50%; background: #3DDC97; display: inline-block; margin-right: 6px; }
    @media (max-width: 1280px) {
      .hero h1 { font-size: 40px; }
      .products, .matrix, .bento, .scenes { grid-template-columns: 1fr 1fr; }
      .metric.wide { grid-column: auto; grid-row: auto; }
      .scene.featured { grid-row: auto; min-height: 280px; }
    }
    @media (max-width: 1024px) {
      .nav-links { display: none; }
      .menu-toggle { display: inline-flex; margin-left: auto; }
      .nav-cta { display: none; }
      .split, .compare-grid, .case-grid, .convert-wrap, .window-band, .reviews, .ladder { grid-template-columns: 1fr; }
      .ladder article:nth-child(2), .ladder article:nth-child(3) { margin-top: 0; }
      .timeline { grid-template-columns: 1fr 1fr; }
      .timeline::before { display: none; }
      .icons { grid-template-columns: 1fr 1fr; }
      .foot-grid { grid-template-columns: 1fr 1fr; }
      .hero { min-height: 72vh; }
      .hero-inner { min-height: 72vh; padding-top: 48px; }
    }
    @media (max-width: 768px) {
      .section { padding: 52px 0; }
      .hero h1 { font-size: 30px; }
      .section-head h2, .window-band h2 { font-size: 26px; }
      .bento, .matrix, .products, .scenes, .qa-grid, .form-grid, .slots { grid-template-columns: 1fr; }
      .news-item { grid-template-columns: 1fr; }
      .top-links { gap: 10px; }
      .container, .topbar-inner, .nav-inner { width: min(100% - 28px, var(--container)); }
      .metric .value { font-size: 32px; }
    }
    @media (max-width: 520px) {
      .hero-actions .btn { width: 100%; }
      .play-btn { margin-left: 0; }
      .timeline, .icons, .foot-grid { grid-template-columns: 1fr; }
      .copy { flex-direction: column; }
      .hero-caption { display: none; }
    }
    @media (prefers-reduced-motion: reduce) {
      *, *::before, *::after { animation: none !important; transition: none !important; }
      html { scroll-behavior: auto; }
    }

/* roulang page: index */
:root {
      --brand: #0C7A74;
      --brand-2: #129A93;
      --brand-dark: #08635E;
      --accent: #E08912;
      --accent-2: #D35400;
      --bg: #F2F5F6;
      --bg-tint: #E7F2F1;
      --surface: #FFFFFF;
      --ink: #171C22;
      --ink-2: #222A31;
      --text: #1C2428;
      --muted: #5B676C;
      --line: #D7E0E2;
      --danger: #C0392B;
      --ok: #1A8A4A;
      --radius-card: 24px;
      --radius-btn: 13px;
      --radius-input: 10px;
      --shadow: 0 12px 28px rgba(23, 28, 34, 0.08);
      --shadow-hover: 0 16px 32px rgba(23, 28, 34, 0.12);
      --container: 1240px;
      --header-h: 118px;
      --focus: 0 0 0 2px #FFFFFF, 0 0 0 4px #0C7A74;
    }
    *, *::before, *::after { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    body {
      margin: 0;
      font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
      color: var(--text);
      background: var(--bg);
      line-height: 1.75;
      font-size: 16px;
      overflow-x: hidden;
    }
    body.is-lock { overflow: hidden; }
    img { max-width: 100%; display: block; height: auto; }
    a { color: var(--brand); text-decoration: none; transition: color .2s ease, opacity .2s ease; }
    a:hover { color: var(--brand-dark); }
    button, input, select, textarea { font-family: inherit; }
    button { cursor: pointer; }
    h1, h2, h3, h4, p { margin: 0; }
    ul { margin: 0; padding: 0; list-style: none; }
    :focus-visible { outline: none; box-shadow: var(--focus); }
    .container { width: min(100% - 32px, var(--container)); margin: 0 auto; }
    section[id] { scroll-margin-top: 92px; }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      min-height: 44px;
      padding: 0 20px;
      border-radius: var(--radius-btn);
      border: 1px solid transparent;
      font-size: 15px;
      font-weight: 600;
      letter-spacing: .02em;
      transition: transform .2s ease, box-shadow .2s ease, background .2s ease, border-color .2s ease, color .2s ease;
      text-decoration: none;
    }
    .btn-primary {
      background: linear-gradient(180deg, var(--brand-2), var(--brand));
      color: #fff;
      box-shadow: 0 8px 18px rgba(12, 122, 116, 0.22);
    }
    .btn-primary:hover {
      background: var(--brand-dark);
      color: #fff;
      border-color: var(--accent);
      transform: translateY(-2px);
    }
    .btn-primary:active { transform: translateY(0); }
    .btn-ghost {
      background: #fff;
      color: var(--brand);
      border-color: var(--brand);
    }
    .btn-ghost:hover {
      background: var(--bg-tint);
      color: var(--brand-dark);
      transform: translateY(-2px);
    }
    .btn-invert {
      background: #fff;
      color: var(--ink);
      border-color: transparent;
    }
    .btn-invert:hover { background: var(--accent); color: #fff; }
    .btn-line {
      background: transparent;
      color: #fff;
      border-color: rgba(255,255,255,.45);
    }
    .btn-line:hover { border-color: var(--accent); color: #fff; }

    .badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 4px 10px;
      border-radius: 999px;
      background: rgba(224, 137, 18, .12);
      color: var(--accent-2);
      font-size: 12px;
      font-weight: 700;
      letter-spacing: .04em;
      white-space: nowrap;
      font-variant-numeric: tabular-nums;
    }
    .badge-teal {
      background: rgba(12, 122, 116, .12);
      color: var(--brand);
    }
    .badge-dark {
      background: rgba(255,255,255,.1);
      color: #F6E7C8;
    }
    .tag {
      display: inline-flex;
      align-items: center;
      min-height: 28px;
      padding: 0 10px;
      border-radius: 999px;
      background: var(--bg-tint);
      color: var(--brand-dark);
      font-size: 12px;
      font-weight: 600;
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 80;
      background: rgba(242, 245, 246, .94);
      backdrop-filter: saturate(1.1);
      border-bottom: 1px solid rgba(215, 224, 226, .9);
    }
    .topbar {
      background: var(--ink);
      color: #D8DEE2;
      font-size: 13px;
    }
    .topbar-inner {
      min-height: 40px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
    }
    .topbar a { color: #EEF3F4; }
    .topbar a:hover { color: var(--accent); }
    .topbar-links { display: flex; gap: 18px; align-items: center; flex-wrap: wrap; }
    .nav-main { background: var(--surface); }
    .nav-inner {
      min-height: 78px;
      display: flex;
      align-items: center;
      gap: 24px;
    }
    .logo {
      display: flex;
      align-items: center;
      gap: 10px;
      color: var(--ink);
      flex: 0 0 auto;
    }
    .logo:hover { color: var(--brand); }
    .logo-mark {
      width: 38px;
      height: 38px;
      border-radius: 12px;
      background: linear-gradient(135deg, var(--brand), var(--brand-2));
      position: relative;
      box-shadow: 0 8px 16px rgba(12,122,116,.25);
    }
    .logo-mark::after {
      content: "";
      position: absolute;
      right: 6px;
      top: 6px;
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: var(--accent);
      box-shadow: 0 0 0 3px rgba(224,137,18,.25);
    }
    .logo-text { display: flex; flex-direction: column; line-height: 1.15; }
    .logo-text strong { font-size: 18px; font-weight: 700; }
    .logo-text span { font-size: 12px; color: var(--muted); font-weight: 600; }
    .nav-links {
      display: flex;
      align-items: center;
      gap: 6px;
      margin-left: auto;
      flex-wrap: wrap;
    }
    .nav-links a {
      position: relative;
      color: var(--text);
      font-size: 14px;
      font-weight: 500;
      padding: 10px 10px;
      min-height: 44px;
      display: inline-flex;
      align-items: center;
    }
    .nav-links a::after {
      content: "";
      position: absolute;
      left: 10px;
      right: 10px;
      bottom: 6px;
      height: 2px;
      background: var(--brand);
      transform: scaleX(0);
      transform-origin: left;
      transition: transform .2s ease;
    }
    .nav-links a:hover, .nav-links a.is-active { color: var(--brand); }
    .nav-links a.is-active::after, .nav-links a:hover::after { transform: scaleX(1); }
    .nav-cta { margin-left: 8px; flex: 0 0 auto; }
    .menu-toggle {
      display: none;
      width: 44px;
      height: 44px;
      border: 1px solid var(--line);
      background: #fff;
      border-radius: 12px;
      margin-left: auto;
      align-items: center;
      justify-content: center;
      flex-direction: column;
      gap: 5px;
    }
    .menu-toggle span {
      width: 18px;
      height: 2px;
      background: var(--ink);
      display: block;
    }
    .site-header.is-compact .topbar { display: none; }
    .site-header.is-compact .nav-inner { min-height: 64px; }

    .drawer {
      position: fixed;
      inset: 0;
      background: rgba(23,28,34,.46);
      z-index: 90;
      opacity: 0;
      pointer-events: none;
      transition: opacity .2s ease;
    }
    .drawer.is-open { opacity: 1; pointer-events: auto; }
    .drawer-panel {
      position: absolute;
      top: 0;
      right: 0;
      width: min(86vw, 360px);
      height: 100%;
      background: #fff;
      padding: 24px 20px;
      display: flex;
      flex-direction: column;
      gap: 8px;
      transform: translateX(20px);
      transition: transform .2s ease;
    }
    .drawer.is-open .drawer-panel { transform: none; }
    .drawer a {
      min-height: 44px;
      display: flex;
      align-items: center;
      color: var(--text);
      font-weight: 600;
      border-bottom: 1px solid var(--bg);
    }
    .drawer-close {
      width: 44px;
      height: 44px;
      border: 0;
      background: var(--bg);
      border-radius: 12px;
      margin-left: auto;
      margin-bottom: 8px;
    }

    .hero {
      position: relative;
      min-height: 680px;
      color: #fff;
      overflow: hidden;
    }
    .hero-slide {
      position: absolute;
      inset: 0;
      background-size: cover;
      background-position: center;
      opacity: 0;
      transform: scale(1.04);
      transition: opacity .7s ease, transform 6s ease;
    }
    .hero-slide.is-on {
      opacity: 1;
      transform: scale(1);
    }
    .hero-mask {
      position: absolute;
      inset: 0;
      background:
        linear-gradient(90deg, rgba(17,24,28,.82) 8%, rgba(17,24,28,.46) 52%, rgba(17,24,28,.28) 100%),
        radial-gradient(circle at 78% 30%, rgba(12,122,116,.28), transparent 28%);
      z-index: 1;
    }
    .hero-grid {
      position: absolute;
      inset: 0;
      z-index: 1;
      background-image: linear-gradient(rgba(255,255,255,.04) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.04) 1px, transparent 1px);
      background-size: 48px 48px;
      opacity: .35;
      pointer-events: none;
    }
    .hero-content {
      position: relative;
      z-index: 2;
      min-height: 680px;
      display: grid;
      grid-template-columns: 1.15fr .85fr;
      align-items: center;
      gap: 32px;
      padding: 72px 0 84px;
    }
    .brand-kicker {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      color: #F3E2C0;
      font-weight: 700;
      letter-spacing: .12em;
      font-size: 13px;
      text-transform: none;
    }
    .brand-kicker i {
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: var(--accent);
      display: inline-block;
      box-shadow: 0 0 0 6px rgba(224,137,18,.18);
    }
    .hero h1 {
      margin: 14px 0 16px;
      font-size: 44px;
      line-height: 1.22;
      font-weight: 700;
      max-width: 16em;
    }
    .hero-lead {
      max-width: 38em;
      font-size: 16px;
      line-height: 1.85;
      color: #E6ECEE;
    }
    .hero-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 28px; }
    .hero-stage {
      justify-self: end;
      width: min(100%, 420px);
      aspect-ratio: 16/10;
      border-radius: 28px;
      overflow: hidden;
      position: relative;
      box-shadow: 0 18px 40px rgba(0,0,0,.28);
      border: 1px solid rgba(255,255,255,.14);
    }
    .hero-stage img { width: 100%; height: 100%; object-fit: cover; }
    .play-btn {
      position: absolute;
      left: 50%;
      top: 50%;
      width: 72px;
      height: 72px;
      margin: -36px 0 0 -36px;
      border: 0;
      border-radius: 50%;
      background: rgba(255,255,255,.94);
      color: var(--brand-dark);
      display: grid;
      place-items: center;
      box-shadow: 0 12px 30px rgba(0,0,0,.25);
    }
    .play-btn:hover { transform: scale(1.04); background: #fff; }
    .play-btn svg { width: 26px; height: 26px; margin-left: 3px; }
    .play-btn.is-playing svg { margin: 0; }
    .hero-dots {
      position: absolute;
      z-index: 3;
      left: 50%;
      bottom: 22px;
      transform: translateX(-50%);
      display: flex;
      gap: 8px;
      align-items: center;
    }
    .hero-dots button {
      width: 44px;
      height: 18px;
      border: 0;
      background: transparent;
      padding: 0;
      display: grid;
      place-items: center;
    }
    .hero-dots button span {
      width: 10px;
      height: 10px;
      border-radius: 50%;
      background: rgba(255,255,255,.4);
      display: block;
    }
    .hero-dots button.is-on span { background: var(--accent); width: 22px; border-radius: 999px; }

    .sec { padding: 88px 0; position: relative; }
    .sec-tint { background: var(--bg-tint); }
    .sec-white { background: var(--surface); }
    .sec-head { max-width: 760px; margin-bottom: 32px; }
    .sec-head h2 {
      font-size: 30px;
      line-height: 1.3;
      margin: 8px 0 12px;
    }
    .sec-head p { color: var(--muted); font-size: 16px; }
    .eyebrow {
      color: var(--brand);
      font-size: 13px;
      font-weight: 700;
      letter-spacing: .08em;
    }

    .metrics-grid {
      display: grid;
      grid-template-columns: 1.4fr 1fr 1fr;
      grid-template-rows: auto auto;
      gap: 18px;
    }
    .metric {
      background: var(--surface);
      border-radius: var(--radius-card);
      padding: 28px;
      box-shadow: var(--shadow);
      position: relative;
      overflow: hidden;
      border: 1px solid rgba(215,224,226,.7);
      transition: transform .2s ease, box-shadow .2s ease;
    }
    .metric:hover { transform: translateY(-5px); box-shadow: var(--shadow-hover); }
    .metric::before {
      content: "";
      position: absolute;
      left: 0; top: 0; right: 40%;
      height: 4px;
      background: linear-gradient(90deg, var(--brand), var(--accent));
    }
    .metric.wide { grid-row: span 2; display: flex; flex-direction: column; justify-content: space-between; min-height: 280px; }
    .metric .num {
      font-size: 42px;
      font-weight: 700;
      line-height: 1;
      font-variant-numeric: tabular-nums;
      color: var(--ink);
    }
    .metric .num small { font-size: 16px; color: var(--accent-2); margin-left: 4px; }
    .metric h3 { font-size: 18px; margin: 12px 0 8px; }
    .metric p { color: var(--muted); font-size: 15px; }
    .bar { height: 8px; background: #E7EEEF; border-radius: 999px; overflow: hidden; margin-top: 16px; }
    .bar > i { display: block; height: 100%; background: linear-gradient(90deg, var(--brand), var(--brand-2)); border-radius: 999px; }

    .split {
      display: grid;
      grid-template-columns: 1.05fr .95fr;
      gap: 40px;
      align-items: center;
    }
    .split img, .media {
      width: 100%;
      border-radius: 28px;
      object-fit: cover;
      aspect-ratio: 16/10;
      box-shadow: var(--shadow);
    }
    .spec-list { margin-top: 18px; display: grid; gap: 10px; }
    .spec-list li {
      display: grid;
      grid-template-columns: 92px 1fr;
      gap: 12px;
      padding: 12px 14px;
      background: var(--bg);
      border-radius: 14px;
      font-size: 14px;
    }
    .spec-list b { color: var(--brand-dark); }

    .ladder {
      display: grid;
      grid-template-columns: 1.2fr .9fr .75fr;
      gap: 16px;
      align-items: stretch;
    }
    .ladder-card {
      background: #fff;
      border-radius: 26px;
      padding: 28px;
      box-shadow: var(--shadow);
      border: 1px solid var(--line);
      display: flex;
      flex-direction: column;
      min-height: 280px;
    }
    .ladder-card:nth-child(1) { min-height: 340px; }
    .ladder-card:nth-child(2) { margin-top: 28px; }
    .ladder-card:nth-child(3) { margin-top: 56px; }
    .ladder-card h3 { font-size: 20px; margin: 10px 0; }
    .ladder-card p { color: var(--muted); font-size: 15px; flex: 1; }
    .price-line { margin-top: 16px; font-weight: 700; color: var(--ink); font-variant-numeric: tabular-nums; }

    .bento {
      display: grid;
      grid-template-columns: 1.3fr 1fr 1fr;
      grid-template-areas:
        "a a b"
        "c d e"
        "c f f";
      gap: 16px;
    }
    .bento .card:nth-child(1) { grid-area: a; }
    .bento .card:nth-child(2) { grid-area: b; }
    .bento .card:nth-child(3) { grid-area: c; }
    .bento .card:nth-child(4) { grid-area: d; }
    .bento .card:nth-child(5) { grid-area: e; }
    .bento .card:nth-child(6) { grid-area: f; }
    .card {
      background: #fff;
      border-radius: var(--radius-card);
      overflow: hidden;
      box-shadow: var(--shadow);
      border: 1px solid rgba(215,224,226,.8);
      position: relative;
      transition: transform .2s ease, box-shadow .2s ease;
    }
    .card:hover { transform: translateY(-5px); box-shadow: var(--shadow-hover); }
    .card-body { padding: 24px; }
    .card h3 { font-size: 19px; margin: 8px 0 8px; }
    .card p { color: var(--muted); font-size: 15px; }
    .card img { width: 100%; height: 160px; object-fit: cover; }
    .card.tall img { height: 210px; }
    .card .float-badge { position: absolute; top: 14px; right: 14px; }

    .product-grid {
      display: grid;
      grid-template-columns: 1.4fr .8fr .8fr;
      gap: 16px;
    }
    .product {
      background: #fff;
      border-radius: 26px;
      overflow: hidden;
      box-shadow: var(--shadow);
      display: flex;
      flex-direction: column;
    }
    .product img { width: 100%; height: 220px; object-fit: cover; }
    .product-body { padding: 24px 24px 28px; display: flex; flex-direction: column; gap: 10px; flex: 1; }
    .product h3 { font-size: 20px; }
    .product p { color: var(--muted); font-size: 15px; flex: 1; }

    .compare-wrap { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
    .compare-col {
      border-radius: 26px;
      padding: 28px;
      background: #fff;
      box-shadow: var(--shadow);
    }
    .compare-col.after {
      background: var(--ink);
      color: #E8EEEF;
    }
    .compare-col.after p, .compare-col.after .muted { color: #B7C2C6; }
    .compare-row { display: grid; grid-template-columns: 72px 1fr 64px; gap: 10px; align-items: center; margin-top: 14px; font-size: 14px; }
    .pkg-table {
      margin-top: 28px;
      background: #fff;
      border-radius: 26px;
      overflow: hidden;
      box-shadow: var(--shadow);
    }
    .pkg-table .row {
      display: grid;
      grid-template-columns: 1.2fr 1fr 1fr 1fr;
      gap: 8px;
      padding: 16px 22px;
      border-bottom: 1px solid var(--bg);
      font-size: 14px;
    }
    .pkg-table .row.head { background: var(--bg-tint); font-weight: 700; }
    .pkg-table .ok { color: var(--brand-dark); font-weight: 700; }

    .dark-band {
      background: linear-gradient(160deg, #171C22 0%, #222A31 58%, #163835 100%);
      color: #EEF3F4;
      padding: 88px 0;
      position: relative;
      overflow: hidden;
    }
    .dark-band::before {
      content: "";
      position: absolute;
      width: 420px;
      height: 420px;
      right: -80px;
      top: -80px;
      background: radial-gradient(circle, rgba(18,154,147,.22), transparent 68%);
      pointer-events: none;
    }
    .case-grid { display: grid; grid-template-columns: 1.4fr .8fr; gap: 18px; }
    .case-main, .case-side {
      border-radius: 26px;
      overflow: hidden;
      min-height: 280px;
      position: relative;
      background-size: cover;
      background-position: center;
    }
    .case-main { min-height: 420px; }
    .case-side { min-height: 201px; }
    .case-main .veil, .case-side .veil {
      position: absolute;
      inset: 0;
      background: linear-gradient(180deg, rgba(17,24,28,.15), rgba(17,24,28,.82));
    }
    .case-copy { position: absolute; left: 24px; right: 24px; bottom: 22px; z-index: 1; }
    .case-copy h3 { font-size: 22px; margin: 8px 0; }
    .side-stack { display: grid; gap: 18px; }

    .scene-grid {
      display: grid;
      grid-template-columns: 1.2fr 1fr 1fr 1fr;
      gap: 16px;
    }
    .scene { min-height: 250px; padding: 24px; display: flex; flex-direction: column; justify-content: flex-end; }
    .scene img { height: 120px; }

    .slot-bar {
      display: grid;
      grid-template-columns: 1.1fr 1fr 1fr;
      gap: 16px;
    }
    .slot {
      background: rgba(255,255,255,.06);
      border: 1px solid rgba(255,255,255,.1);
      border-radius: 22px;
      padding: 22px;
    }
    .slot strong { display: block; font-size: 20px; margin: 8px 0; }

    .timeline {
      display: grid;
      grid-template-columns: repeat(5, 1fr);
      gap: 12px;
      position: relative;
    }
    .timeline::before {
      content: "";
      position: absolute;
      left: 8%;
      right: 8%;
      top: 28px;
      height: 2px;
      background: linear-gradient(90deg, var(--brand), var(--accent));
    }
    .node {
      background: #fff;
      border-radius: 22px;
      padding: 22px 18px 20px;
      box-shadow: var(--shadow);
      position: relative;
      text-align: left;
    }
    .node i {
      width: 16px;
      height: 16px;
      border-radius: 50%;
      background: var(--brand);
      display: block;
      margin-bottom: 18px;
      box-shadow: 0 0 0 6px rgba(12,122,116,.15);
    }
    .node h3 { font-size: 18px; margin-bottom: 8px; }
    .node p { color: var(--muted); font-size: 14px; }

    .story-grid { display: grid; grid-template-columns: 1.2fr 1fr 1fr; gap: 16px; }
    .story, .review {
      background: #fff;
      border-radius: 24px;
      padding: 26px;
      box-shadow: var(--shadow);
    }
    .story h3, .review h3 { font-size: 18px; margin: 8px 0 10px; }
    .story p, .review p { color: var(--muted); font-size: 15px; }
    .review-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-top: 16px; }
    .stars { color: var(--accent-2); font-weight: 700; letter-spacing: 2px; font-size: 13px; }

    .news-list { display: grid; gap: 14px; }
    .news-item {
      display: grid;
      grid-template-columns: 210px 1fr auto;
      gap: 18px;
      background: #fff;
      border-radius: 22px;
      overflow: hidden;
      box-shadow: var(--shadow);
      align-items: center;
    }
    .news-item img { width: 210px; height: 140px; object-fit: cover; }
    .news-item h3 { font-size: 18px; margin-bottom: 6px; }
    .news-item p { color: var(--muted); font-size: 14px; }
    .news-date { color: var(--muted); font-size: 13px; padding-right: 22px; font-variant-numeric: tabular-nums; }

    .guard-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 14px; }
    .guard {
      background: #fff;
      border-radius: 22px;
      padding: 22px;
      box-shadow: var(--shadow);
      min-height: 180px;
    }
    .guard .ico {
      width: 40px; height: 40px; border-radius: 12px;
      background: var(--bg-tint); color: var(--brand); display: grid; place-items: center; font-weight: 700;
    }

    .qa-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
    .qa {
      background: #fff;
      border-radius: 18px;
      padding: 18px 20px;
      border: 1px solid var(--line);
    }
    .qa b { display: inline-block; margin-right: 8px; color: var(--brand-dark); font-size: 12px; }
    .qa p { color: var(--muted); font-size: 14px; margin-top: 6px; }

    .faq-list { display: grid; gap: 10px; }
    .faq-item { background: #fff; border-radius: 18px; border: 1px solid var(--line); overflow: hidden; }
    .faq-item button {
      width: 100%;
      text-align: left;
      background: transparent;
      border: 0;
      min-height: 56px;
      padding: 14px 52px 14px 20px;
      font-size: 16px;
      font-weight: 650;
      position: relative;
      color: var(--ink);
    }
    .faq-item button::after {
      content: "+";
      position: absolute;
      right: 18px;
      top: 50%;
      transform: translateY(-50%);
      color: var(--brand);
      font-size: 22px;
    }
    .faq-item.is-open button::after { content: "–"; }
    .faq-item .panel {
      display: none;
      padding: 0 20px 18px;
      color: var(--muted);
      font-size: 15px;
    }
    .faq-item.is-open .panel { display: block; }

    .convert {
      background: var(--ink);
      color: #EEF3F4;
      padding: 88px 0;
      position: relative;
    }
    .convert::before {
      content: "";
      position: absolute;
      inset: 0;
      background:
        linear-gradient(90deg, rgba(17,24,28,.88), rgba(17,24,28,.72)),
        url("/assets/images/6846edfad19d8771.jpg") center/cover no-repeat;
      opacity: 1;
    }
    .convert .container { position: relative; z-index: 1; }
    .convert-grid { display: grid; grid-template-columns: 1fr 1.05fr; gap: 28px; align-items: start; }
    .addons { display: grid; gap: 12px; margin-top: 22px; }
    .addon {
      background: rgba(255,255,255,.06);
      border: 1px solid rgba(255,255,255,.1);
      border-radius: 16px;
      padding: 14px 16px;
      display: flex;
      justify-content: space-between;
      gap: 12px;
      align-items: center;
    }
    form.lead {
      background: #fff;
      color: var(--text);
      border-radius: 26px;
      padding: 28px;
      box-shadow: var(--shadow-hover);
    }
    .field { display: grid; gap: 6px; margin-bottom: 14px; }
    .field label { font-size: 13px; font-weight: 700; color: var(--ink); }
    .field input, .field select, .field textarea {
      width: 100%;
      min-height: 44px;
      border: 1px solid var(--line);
      border-radius: var(--radius-input);
      padding: 10px 12px;
      background: #FBFCFC;
      font-size: 15px;
      color: var(--text);
    }
    .field textarea { min-height: 96px; resize: vertical; }
    .field input:focus, .field select:focus, .field textarea:focus {
      outline: none;
      border-color: var(--brand);
      box-shadow: 0 0 0 3px rgba(12,122,116,.15);
    }
    .field.is-err input, .field.is-err select, .field.is-err textarea { border-color: var(--danger); }
    .err { color: var(--danger); font-size: 12px; display: none; }
    .field.is-err .err { display: block; }
    .form-ok {
      display: none;
      background: var(--bg-tint);
      color: var(--brand-dark);
      border-radius: 14px;
      padding: 14px;
      font-weight: 600;
      margin-bottom: 12px;
    }
    .form-ok.is-show { display: block; }

    .site-footer {
      background: #11161B;
      color: #C5CDD1;
      padding: 56px 0 24px;
    }
    .foot-grid {
      display: grid;
      grid-template-columns: 1.3fr 1fr 1.1fr .9fr;
      gap: 28px;
      padding-bottom: 28px;
      border-bottom: 1px solid rgba(255,255,255,.08);
    }
    .site-footer h3 { color: #fff; font-size: 16px; margin-bottom: 12px; }
    .site-footer a { color: #C5CDD1; display: inline-block; min-height: 32px; }
    .site-footer a:hover { color: #fff; }
    .copy { padding-top: 18px; font-size: 13px; color: #8C969B; display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
    .map-box {
      height: 110px;
      border-radius: 16px;
      background:
        linear-gradient(180deg, rgba(12,122,116,.18), rgba(17,22,27,.2)),
        repeating-linear-gradient(90deg, #1c262c 0 12px, #1a2329 12px 24px);
      border: 1px solid rgba(255,255,255,.08);
      position: relative;
      margin-top: 10px;
    }
    .map-box span {
      position: absolute;
      left: 50%;
      top: 50%;
      transform: translate(-50%,-50%);
      background: var(--accent);
      color: #fff;
      font-size: 12px;
      font-weight: 700;
      padding: 6px 10px;
      border-radius: 999px;
    }

    @media (max-width: 1280px) {
      .hero h1 { font-size: 40px; }
      .bento, .metrics-grid, .product-grid, .scene-grid { gap: 14px; }
    }
    @media (max-width: 1024px) {
      .nav-links { display: none; }
      .nav-cta { display: none; }
      .menu-toggle { display: inline-flex; }
      .hero-content, .split, .compare-wrap, .case-grid, .convert-grid, .foot-grid, .qa-grid, .story-grid {
        grid-template-columns: 1fr;
      }
      .metrics-grid, .bento, .product-grid, .scene-grid, .slot-bar, .timeline, .review-grid, .guard-grid, .ladder, .pkg-table .row, .news-item {
        grid-template-columns: 1fr 1fr;
      }
      .bento { grid-template-areas: none; }
      .bento .card { grid-area: auto; }
      .metric.wide { grid-row: auto; min-height: 0; }
      .ladder-card:nth-child(2), .ladder-card:nth-child(3) { margin-top: 0; }
      .timeline::before { display: none; }
      .hero-content { padding-top: 48px; min-height: 0; }
      .hero, .hero-content { min-height: 0; }
      .hero { padding-bottom: 48px; }
      .hero-stage { justify-self: start; width: 100%; }
      .pkg-table .row { grid-template-columns: 1fr 1fr; }
    }
    @media (max-width: 768px) {
      .sec, .dark-band, .convert { padding: 56px 0; }
      .hero h1 { font-size: 30px; }
      .sec-head h2 { font-size: 26px; }
      .topbar-inner { justify-content: flex-start; overflow: auto; }
      .metrics-grid, .bento, .product-grid, .scene-grid, .slot-bar, .timeline, .review-grid, .guard-grid, .ladder, .qa-grid, .story-grid, .news-item, .pkg-table .row, .foot-grid {
        grid-template-columns: 1fr;
      }
      .news-item img { width: 100%; height: 180px; }
      .news-date { padding: 0 18px 16px; }
      .hero-actions .btn { width: 100%; }
      .copy { flex-direction: column; }
    }
    @media (max-width: 520px) {
      .hero h1 { font-size: 28px; }
      .metric .num { font-size: 34px; }
      .container { width: min(100% - 24px, var(--container)); }
      .card-body, .product-body, form.lead { padding: 20px; }
    }
    @media (max-width: 375px) {
      .logo-text strong { font-size: 16px; }
      .hero { min-height: 0; }
    }