/* roulang page: index */
:root {
      --orange: #E86A17;
      --gold: #F6B445;
      --cyan: #1AA6B8;
      --steel: #2C313A;
      --dark: #1C2026;
      --bg: #F3EEE6;
      --card: #FFFCFA;
      --line: #E7E0D6;
      --text: #2C313A;
      --muted: #5E646E;
      --white: #FFFCFA;
      --warn: #C24B0A;
      --grad: linear-gradient(135deg, #E86A17 0%, #F6B445 100%);
      --grad-hover: linear-gradient(150deg, #F07822 0%, #F8C056 100%);
      --radius-xl: 24px;
      --radius-lg: 20px;
      --radius-md: 14px;
      --radius-sm: 12px;
      --radius-pill: 999px;
      --shadow: 0 10px 30px rgba(44, 49, 58, .08);
      --shadow-h: 0 13px 34px rgba(44, 49, 58, .12);
      --top-h: 42px;
      --nav-h: 70px;
      --container: 1220px;
      --space: 88px;
      --font: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    }
    *, *::before, *::after { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    body {
      margin: 0;
      font-family: var(--font);
      font-size: 17px;
      line-height: 1.75;
      color: var(--text);
      background: var(--bg);
      overflow-x: hidden;
    }
    img { max-width: 100%; display: block; height: auto; }
    a { color: var(--cyan); text-decoration: none; transition: color .2s ease, opacity .2s ease; }
    a:hover { color: var(--orange); }
    button, input, select, textarea { font-family: inherit; font-size: inherit; }
    button { cursor: pointer; border: 0; background: none; }
    h1, h2, h3, h4 { margin: 0; letter-spacing: -.02em; font-weight: 800; line-height: 1.28; color: var(--steel); }
    p { margin: 0; }
    ul, dl, dd { margin: 0; padding: 0; }
    table { border-collapse: collapse; width: 100%; }
    :focus-visible { outline: 2px solid var(--cyan); outline-offset: 3px; }
    .skip {
      position: absolute; left: -999px; top: 8px;
      background: var(--steel); color: #fff; padding: 8px 14px; border-radius: 8px; z-index: 80;
    }
    .skip:focus { left: 8px; }
    .container { width: min(100% - 40px, var(--container)); margin-inline: auto; }
    .track {
      display: block; width: 56px; height: 6px; background: #F5C400; border-radius: 2px; margin-bottom: 16px;
    }
    .btn {
      display: inline-flex; align-items: center; justify-content: center; gap: 8px;
      min-height: 48px; padding: 12px 26px; border-radius: var(--radius-pill);
      font-weight: 700; font-size: 15px; letter-spacing: .02em; line-height: 1;
      transition: transform .2s ease, box-shadow .2s ease, filter .2s ease, background .2s ease, border-color .2s ease;
    }
    .btn-primary {
      background: var(--grad); color: #fff; box-shadow: var(--shadow);
    }
    .btn-primary:hover { background: var(--grad-hover); transform: translateY(-3px); box-shadow: var(--shadow-h); color: #fff; filter: brightness(1.06); }
    .btn-primary:active { transform: translateY(-1px); }
    .btn-ghost {
      background: transparent; color: #fff; border: 1.5px solid rgba(255,255,255,.55);
    }
    .btn-ghost:hover { border-color: #fff; background: rgba(255,255,255,.08); color: #fff; transform: translateY(-3px); }
    .btn-steel {
      background: #fff; color: var(--steel); border: 1.5px solid var(--steel);
    }
    .btn-steel:hover { background: var(--steel); color: #fff; transform: translateY(-3px); }
    .badge {
      display: inline-flex; align-items: center; gap: 8px;
      min-height: 36px; padding: 6px 14px; border-radius: var(--radius-pill);
      background: #fff; color: var(--steel); box-shadow: var(--shadow); font-size: 13px; font-weight: 600;
    }
    .badge .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--orange); flex-shrink: 0; }
    .badge b { font-variant-numeric: tabular-nums; font-weight: 800; }
    .badge-dark { background: rgba(28,32,38,.82); color: #fff; }
    .badge-dark .dot { background: var(--gold); }
    .badge-cyan .dot { background: var(--cyan); }
    .sec { padding: var(--space) 0; position: relative; }
    .sec-head { max-width: 760px; margin-bottom: 36px; }
    .sec-head h2 { font-size: clamp(26px, 3vw, 36px); margin-bottom: 12px; }
    .sec-head p { color: var(--muted); font-size: 16px; }
    .card {
      background: var(--card); border-radius: var(--radius-xl); box-shadow: var(--shadow);
      border: 1px solid rgba(231,224,214,.8); position: relative; overflow: hidden;
      transition: transform .2s ease, box-shadow .2s ease;
    }
    .card:hover { transform: translateY(-3px); box-shadow: var(--shadow-h); }
    .rail { box-shadow: inset 4px 0 0 var(--orange); }
    .rail-top::before {
      content: ""; position: absolute; left: 0; right: 0; top: 0; height: 6px; background: #F5C400;
    }
    .site-header { position: relative; z-index: 40; }
    .topbar {
      height: var(--top-h); background: #EBE4D8; color: var(--muted); font-size: 13px;
      display: flex; align-items: center;
    }
    .topbar .container { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
    .top-links { display: flex; align-items: center; gap: 18px; flex-wrap: wrap; }
    .top-links a { color: var(--steel); font-weight: 600; min-height: 32px; display: inline-flex; align-items: center; }
    .top-badges { display: flex; gap: 8px; }
    .mini-badge {
      display: inline-flex; align-items: center; gap: 6px; height: 28px; padding: 0 10px;
      border-radius: var(--radius-pill); background: #fff; font-size: 12px; font-weight: 700; color: var(--steel);
    }
    .mini-badge i { width: 6px; height: 6px; border-radius: 50%; background: var(--orange); display: block; }
    .nav-main {
      position: sticky; top: 0; z-index: 50; background: var(--steel); min-height: var(--nav-h);
      border-bottom: 1px solid rgba(255,255,255,.06); transition: min-height .2s ease;
    }
    body.scrolled .nav-main { min-height: 58px; }
    .nav-main .container { display: flex; align-items: center; justify-content: space-between; gap: 18px; min-height: inherit; }
    .logo {
      display: flex; align-items: center; gap: 10px; color: #fff; font-weight: 800; font-size: 18px; letter-spacing: -.02em;
      min-height: 44px; flex-shrink: 0;
    }
    .logo:hover { color: var(--gold); }
    .logo-mark {
      width: 36px; height: 36px; border-radius: 10px; background: var(--grad); display: grid; place-items: center;
      box-shadow: inset 0 -6px 0 rgba(0,0,0,.08);
    }
    .nav-links { display: flex; align-items: center; gap: 4px; }
    .nav-links a {
      color: rgba(255,255,255,.82); font-size: 14px; font-weight: 600; padding: 10px 12px; min-height: 44px;
      display: inline-flex; align-items: center; position: relative; white-space: nowrap;
    }
    .nav-links a:hover, .nav-links a.is-active { color: #fff; }
    .nav-links a.is-active::after {
      content: ""; position: absolute; left: 12px; right: 12px; bottom: 6px; height: 3px;
      background: var(--orange); border-radius: 2px;
    }
    .nav-cta { flex-shrink: 0; }
    .burger {
      display: none; width: 44px; height: 44px; border-radius: 12px; border: 1px solid rgba(255,255,255,.2);
      align-items: center; justify-content: center; flex-direction: column; gap: 5px;
    }
    .burger span { display: block; width: 18px; height: 2px; background: #fff; border-radius: 2px; }
    .drawer {
      position: fixed; inset: 0 0 0 auto; width: min(86vw, 360px); background: var(--dark); color: #fff;
      transform: translateX(100%); transition: transform .28s ease; z-index: 70; padding: 24px 22px 32px;
      display: flex; flex-direction: column; gap: 8px; overflow-y: auto;
    }
    .drawer.open { transform: none; }
    .drawer-mask {
      position: fixed; inset: 0; background: rgba(28,32,38,.55); opacity: 0; pointer-events: none; z-index: 60; transition: opacity .28s ease;
    }
    .drawer-mask.open { opacity: 1; pointer-events: auto; }
    body.lock { overflow: hidden; }
    .drawer a {
      color: #fff; min-height: 48px; display: flex; align-items: center; font-weight: 700; font-size: 18px;
      border-bottom: 1px solid rgba(255,255,255,.08);
    }
    .drawer .btn { margin-top: 16px; width: 100%; }
    .drawer-top { font-size: 13px; color: rgba(255,255,255,.7); margin-bottom: 12px; }
    .hero { padding: 0; }
    .hero-stage { position: relative; height: 84vh; min-height: 640px; max-height: 920px; overflow: hidden; background: var(--dark); }
    .slide { position: absolute; inset: 0; opacity: 0; pointer-events: none; transition: opacity .6s ease; }
    .slide.is-on { opacity: 1; pointer-events: auto; }
    .ba { display: grid; grid-template-columns: 42% 58%; height: 100%; }
    .pane { position: relative; overflow: hidden; }
    .pane img { width: 100%; height: 100%; object-fit: cover; }
    .pane .veil {
      position: absolute; inset: 0;
      background: linear-gradient(180deg, rgba(28,32,38,.18), rgba(28,32,38,.72));
    }
    .after .veil {
      background: linear-gradient(110deg, rgba(28,32,38,.55) 8%, rgba(28,32,38,.28) 48%, rgba(232,106,23,.22) 100%);
    }
    .tag {
      position: absolute; top: 22px; left: 22px; z-index: 2;
      background: rgba(255,252,250,.92); color: var(--steel); font-size: 12px; font-weight: 800;
      letter-spacing: .08em; padding: 6px 12px; border-radius: 999px;
    }
    .after .tag { background: var(--grad); color: #fff; }
    .before-copy {
      position: absolute; left: 22px; right: 22px; bottom: 28px; z-index: 2; color: #fff;
    }
    .before-copy strong { display: block; font-size: 22px; margin-bottom: 6px; }
    .before-copy span { font-size: 14px; opacity: .9; }
    .hero-copy {
      position: absolute; left: 40px; right: 48px; top: 50%; transform: translateY(-50%); z-index: 2; color: #fff; max-width: 640px;
    }
    .hero-copy h1, .hero-copy h2 { color: #fff; font-size: clamp(30px, 3.6vw, 46px); margin-bottom: 16px; }
    .hero-copy .lead { font-size: 16px; line-height: 1.75; margin-bottom: 22px; color: rgba(255,255,255,.92); }
    .hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 20px; }
    .hero-badges { display: flex; flex-wrap: wrap; gap: 10px; }
    .split {
      position: absolute; left: 42%; top: 0; bottom: 0; width: 10px; margin-left: -5px; z-index: 3;
      background: repeating-linear-gradient(180deg, #F5C400 0 10px, transparent 10px 18px);
    }
    .split b {
      position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%);
      width: 46px; height: 46px; border-radius: 50%; background: var(--grad); color: #fff;
      display: grid; place-items: center; font-size: 12px; font-weight: 800; box-shadow: var(--shadow);
    }
    .hero-ctrl { position: absolute; inset: 0; pointer-events: none; z-index: 4; }
    .hero-ctrl button {
      pointer-events: auto; position: absolute; top: 50%; transform: translateY(-50%);
      width: 44px; height: 44px; border-radius: 50%; background: rgba(255,252,250,.9); color: var(--steel); font-size: 20px;
    }
    .hero-ctrl .prev { left: 14px; }
    .hero-ctrl .next { right: 14px; }
    .hero-ctrl button:hover { background: #fff; }
    .dots {
      position: absolute; left: 50%; bottom: 18px; transform: translateX(-50%); display: flex; gap: 8px; z-index: 4; pointer-events: auto;
    }
    .dots button {
      width: 28px; height: 6px; border-radius: 8px; background: rgba(255,255,255,.35);
    }
    .dots button.is-on { background: var(--grad); width: 42px; }
    #kpi { background: var(--bg); }
    .kpi-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
    .kpi-card { padding: 28px 26px 24px; min-height: 230px; }
    .kpi-card .k { font-size: 14px; color: var(--muted); font-weight: 700; margin-bottom: 10px; }
    .kpi-card .n {
      font-size: clamp(36px, 4vw, 52px); font-weight: 800; letter-spacing: -.04em; font-variant-numeric: tabular-nums; line-height: 1;
    }
    .kpi-card .u { font-size: 14px; color: var(--orange); font-weight: 700; margin: 8px 0 14px; }
    .bar { height: 8px; background: #E7E0D6; border-radius: 99px; overflow: hidden; margin-bottom: 12px; }
    .bar span { display: block; height: 100%; background: var(--grad); border-radius: 99px; }
    .kpi-card p { font-size: 14px; color: var(--muted); }
    #intro { background: #EFE8DE; }
    .intro-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 28px; align-items: center; }
    .intro-pic { border-radius: 28px; overflow: hidden; min-height: 420px; position: relative; box-shadow: var(--shadow); }
    .intro-pic img { width: 100%; height: 100%; object-fit: cover; min-height: 420px; }
    .intro-pic .float-badge { position: absolute; right: 16px; bottom: 16px; }
    .spec { width: 100%; font-size: 14px; margin-top: 20px; background: var(--card); border-radius: 16px; overflow: hidden; }
    .spec th, .spec td { text-align: left; padding: 10px 14px; border-bottom: 1px solid var(--line); }
    .spec th { width: 28%; color: var(--muted); font-weight: 600; background: #F7F1E8; }
    .spec tr:last-child th, .spec tr:last-child td { border-bottom: 0; }
    #matrix { background: var(--bg); }
    .bento { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
    .bento-item { padding: 26px; min-height: 210px; }
    .bento-item.lg { grid-column: span 2; min-height: 280px; background-size: cover; background-position: center; color: #fff; }
    .bento-item.lg h3, .bento-item.lg li { color: #fff; }
    .bento-item.lg { position: relative; }
    .bento-item.lg::after {
      content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(28,32,38,.15), rgba(28,32,38,.72));
    }
    .bento-item.lg > * { position: relative; z-index: 1; }
    .ico { width: 40px; height: 40px; margin-bottom: 12px; }
    .bento-item h3 { font-size: 22px; margin-bottom: 10px; }
    .bento-item ul { list-style: none; color: var(--muted); font-size: 14px; }
    .bento-item.lg ul { color: rgba(255,255,255,.9); }
    .bento-item li { padding-left: 14px; position: relative; margin: 4px 0; }
    .bento-item li::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--orange); position: absolute; left: 0; top: .62em; }
    .bento-item .badge { margin-top: 14px; }
    #products { background: #EFE8DE; }
    .prod-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
    .prod { display: flex; flex-direction: column; }
    .prod .pic { aspect-ratio: 16/10; overflow: hidden; }
    .prod .pic img { width: 100%; height: 100%; object-fit: cover; }
    .prod .body { padding: 22px 22px 24px; display: flex; flex-direction: column; gap: 10px; flex: 1; }
    .no { font-variant-numeric: tabular-nums; font-size: 12px; font-weight: 800; color: var(--orange); letter-spacing: .12em; }
    .prod h3 { font-size: 22px; }
    .params { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 8px; font-size: 13px; }
    .params span { background: #F3EEE6; border-radius: 10px; padding: 8px; color: var(--muted); }
    .params b { display: block; color: var(--steel); font-size: 14px; }
    .inc { font-size: 13px; color: var(--muted); }
    .inc b { color: var(--steel); }
    .inc .nope { color: #8A8174; }
    .prod .btn { margin-top: auto; width: 100%; }
    #compare { background: var(--bg); }
    .table-scroll { overflow-x: auto; border-radius: 24px; box-shadow: var(--shadow); background: var(--card); }
    .cmp { min-width: 720px; }
    .cmp th, .cmp td { padding: 16px 18px; text-align: left; border-bottom: 1px solid var(--line); font-size: 15px; }
    .cmp thead th { background: var(--steel); color: #fff; font-weight: 700; }
    .cmp tbody th { width: 18%; background: #F7F1E8; font-weight: 700; }
    .cmp td.win { box-shadow: inset 3px 0 0 var(--cyan); background: rgba(26,166,184,.06); }
    .cmp .mark { color: var(--cyan); font-weight: 800; margin-right: 6px; }
    #cases {
      background:
        linear-gradient(135deg, rgba(232,106,23,.08), transparent 42%),
        linear-gradient(rgba(255,255,255,.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,.03) 1px, transparent 1px),
        var(--dark);
      background-size: auto, 48px 48px, 48px 48px, auto;
      color: #fff;
    }
    #cases h2, #cases .sec-head p { color: #fff; }
    #cases .sec-head p { color: rgba(255,255,255,.78); }
    .case-grid { display: grid; grid-template-columns: 1.25fr .75fr; gap: 18px; }
    .case-main { min-height: 420px; border-radius: 24px; overflow: hidden; position: relative; }
    .case-main img { width: 100%; height: 100%; object-fit: cover; min-height: 420px; }
    .case-main .cap {
      position: absolute; left: 0; right: 0; bottom: 0; padding: 24px;
      background: linear-gradient(transparent, rgba(28,32,38,.88));
    }
    .case-main h3 { color: #fff; margin: 8px 0; }
    .case-side { display: grid; gap: 16px; }
    .case-mini { padding: 22px; background: rgba(255,252,250,.04); border: 1px solid rgba(255,255,255,.08); border-radius: 20px; }
    .case-mini h3 { color: #fff; font-size: 20px; margin: 8px 0 10px; }
    .case-mini p { color: rgba(255,255,255,.78); font-size: 14px; }
    .idea { margin-top: 18px; padding: 14px 18px; border-left: 4px solid var(--orange); color: rgba(255,255,255,.86); font-size: 15px; }
    #miles { background: #EFE8DE; }
    .axis { display: grid; grid-template-columns: repeat(5, 1fr); gap: 14px; position: relative; }
    .axis::before {
      content: ""; position: absolute; left: 8%; right: 8%; top: 28px; height: 4px; background: var(--grad); border-radius: 99px;
    }
    .node { padding: 0 6px; }
    .node .ball { width: 18px; height: 18px; border-radius: 50%; background: var(--orange); margin: 20px auto 14px; position: relative; z-index: 1; box-shadow: 0 0 0 6px #EFE8DE; }
    .node .box { background: var(--card); border-radius: 18px; padding: 16px; box-shadow: var(--shadow); min-height: 160px; }
    .node .t { font-size: 12px; font-weight: 800; color: var(--orange); letter-spacing: .06em; }
    .node h3 { font-size: 16px; margin: 6px 0; }
    .node p { font-size: 13px; color: var(--muted); }
    #stories { background: var(--bg); }
    .story-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
    .story { padding: 26px; }
    .who { display: flex; align-items: center; gap: 12px; margin-bottom: 12px; }
    .av { width: 44px; height: 44px; border-radius: 50%; background: var(--grad); display: grid; place-items: center; color: #fff; font-weight: 800; }
    .av.b { background: linear-gradient(135deg, #1AA6B8, #4BC4C9); }
    .av.c { background: linear-gradient(135deg, #2C313A, #5E646E); }
    .who strong { display: block; font-size: 15px; }
    .who span { font-size: 13px; color: var(--muted); }
    .story p { font-size: 15px; color: var(--muted); }
    #stats {
      padding: 36px 0;
      background: var(--grad);
      color: #fff;
    }
    .stat-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; text-align: center; }
    .stat-row .n { font-size: 48px; font-weight: 800; font-variant-numeric: tabular-nums; letter-spacing: -.04em; line-height: 1; }
    .stat-row .u { font-size: 13px; opacity: .9; margin-top: 6px; font-weight: 700; }
    #reviews { background: var(--bg); }
    .rev-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
    .rev { padding: 22px; }
    .stars { display: flex; gap: 5px; margin-bottom: 10px; }
    .stars i { width: 10px; height: 10px; border-radius: 50%; background: var(--orange); display: block; }
    .rev p { font-size: 14px; color: var(--muted); min-height: 96px; }
    .rev .by { margin-top: 12px; font-size: 13px; font-weight: 700; }
    #news { background: #EFE8DE; }
    .news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
    .news .pic { aspect-ratio: 16/10; overflow: hidden; }
    .news .pic img { width: 100%; height: 100%; object-fit: cover; }
    .news .body { padding: 18px 20px 22px; }
    .news time { font-size: 12px; color: var(--orange); font-weight: 700; }
    .news h3 { font-size: 18px; margin: 6px 0 8px; }
    .news p { font-size: 14px; color: var(--muted); }
    #guarantee { background: var(--bg); }
    .g-list { display: grid; gap: 12px; }
    .g-item {
      display: grid; grid-template-columns: 52px 1fr auto; gap: 16px; align-items: center;
      padding: 18px 22px; background: var(--card); border-radius: 18px; box-shadow: var(--shadow);
    }
    .g-item svg { width: 40px; height: 40px; }
    .g-item h3 { font-size: 18px; }
    .g-item p { font-size: 14px; color: var(--muted); }
    #scenes { background: #EFE8DE; }
    .chips { display: flex; flex-wrap: wrap; gap: 10px; }
    .chip {
      min-height: 44px; padding: 10px 18px; border-radius: var(--radius-pill);
      border: 1.5px solid var(--line); background: var(--card); font-weight: 700; color: var(--steel);
    }
    .chip:hover, .chip.is-on { border-color: var(--orange); color: var(--orange); box-shadow: var(--shadow); }
    #faq { background: var(--bg); }
    .acc { display: grid; gap: 10px; }
    .acc-item { background: var(--card); border-radius: 16px; box-shadow: var(--shadow); overflow: hidden; }
    .acc-btn {
      width: 100%; text-align: left; min-height: 56px; padding: 16px 20px; font-weight: 700; font-size: 16px;
      display: flex; justify-content: space-between; gap: 12px; color: var(--steel);
    }
    .acc-btn span.pm { width: 28px; height: 28px; border-radius: 50%; background: var(--grad); color: #fff; display: grid; place-items: center; flex-shrink: 0; }
    .acc-panel { display: none; padding: 0 20px 18px; color: var(--muted); font-size: 15px; }
    .acc-item.open .acc-panel { display: block; }
    #form { background: #EFE8DE; }
    .form-wrap { background: var(--card); border-radius: 28px; box-shadow: var(--shadow); display: grid; grid-template-columns: .9fr 1.1fr; overflow: hidden; }
    .form-left { padding: 36px 32px; background:
      linear-gradient(160deg, rgba(232,106,23,.12), transparent 50%),
      #2C313A; color: #fff; }
    .form-left h2 { color: #fff; font-size: 30px; margin-bottom: 14px; }
    .form-left p { color: rgba(255,255,255,.8); margin-bottom: 18px; }
    .form-left li { list-style: none; margin: 8px 0; padding-left: 16px; position: relative; }
    .form-left li::before { content: ""; width: 7px; height: 7px; background: var(--gold); border-radius: 50%; position: absolute; left: 0; top: .55em; }
    .tel-lg { display: inline-flex; margin-top: 18px; color: #fff; font-size: 22px; font-weight: 800; min-height: 44px; }
    .form-right { padding: 32px; }
    .fields { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
    .field { display: flex; flex-direction: column; gap: 6px; }
    .field.full { grid-column: 1 / -1; }
    label { font-size: 13px; font-weight: 700; }
    input, select, textarea {
      height: 48px; border-radius: 12px; border: 1px solid var(--line); background: #fff; padding: 0 12px; color: var(--steel);
    }
    textarea { height: 96px; padding: 10px 12px; resize: vertical; }
    input:focus, select:focus, textarea:focus { border-color: var(--cyan); outline: none; box-shadow: 0 0 0 3px rgba(26,166,184,.15); }
    .field.error input, .field.error select { border-color: var(--orange); }
    .err { display: none; color: var(--warn); font-size: 12px; }
    .field.error .err { display: block; }
    .checks { display: flex; flex-wrap: wrap; gap: 8px 14px; font-size: 14px; }
    .checks label { font-weight: 500; display: flex; align-items: center; gap: 6px; min-height: 44px; }
    .form-right .btn { width: 100%; margin-top: 8px; }
    .ok { display: none; margin-top: 10px; padding: 12px 14px; background: rgba(26,166,184,.1); color: #0E6E7A; border-radius: 12px; font-weight: 700; }
    .rush {
      margin-top: 16px; background: var(--dark); color: #fff; border-radius: 16px; padding: 14px 16px;
    }
    .rush .row { display: flex; justify-content: space-between; font-size: 13px; margin-bottom: 8px; }
    .prog { height: 8px; background: rgba(255,255,255,.15); border-radius: 99px; overflow: hidden; }
    .prog span { display: block; width: 75%; height: 100%; background: var(--grad); }
    .site-footer { background: var(--steel); color: rgba(255,255,255,.78); padding: 48px 0 24px; }
    .ft-grid { display: grid; grid-template-columns: 1.2fr .9fr 1.1fr; gap: 28px; }
    .site-footer h3 { color: #fff; font-size: 16px; margin-bottom: 12px; }
    .site-footer a { color: rgba(255,255,255,.78); display: inline-flex; min-height: 36px; align-items: center; }
    .site-footer a:hover { color: var(--gold); }
    .copy { border-top: 1px solid rgba(255,255,255,.1); margin-top: 28px; padding-top: 16px; font-size: 13px; display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
    @media (max-width: 1280px) {
      .hero-copy { left: 28px; right: 28px; }
      .kpi-card .n { font-size: 40px; }
    }
    @media (max-width: 1024px) {
      :root { --space: 72px; }
      .top-badges { display: none; }
      .nav-links { display: none; }
      .burger { display: inline-flex; }
      .kpi-grid, .prod-grid, .story-grid, .news-grid, .rev-grid { grid-template-columns: repeat(2, 1fr); }
      .bento { grid-template-columns: repeat(2, 1fr); }
      .bento-item.lg { grid-column: span 2; }
      .intro-grid, .case-grid, .form-wrap { grid-template-columns: 1fr; }
      .axis { grid-template-columns: 1fr 1fr; }
      .axis::before { display: none; }
      .stat-row { grid-template-columns: repeat(2, 1fr); gap: 20px; }
      .g-item { grid-template-columns: 40px 1fr; }
      .g-item .badge { grid-column: 2; justify-self: start; }
    }
    @media (max-width: 768px) {
      :root { --space: 56px; }
      .container { width: min(100% - 28px, var(--container)); }
      .topbar { display: none; }
      .hero-stage { height: auto; min-height: 0; max-height: none; }
      .ba { grid-template-columns: 1fr; }
      .pane.before { min-height: 220px; order: 2; }
      .pane.after { min-height: 520px; order: 1; }
      .hero-copy { position: absolute; left: 20px; right: 20px; top: auto; bottom: 54px; transform: none; }
      .split { display: none; }
      .kpi-grid, .prod-grid, .story-grid, .news-grid, .rev-grid, .bento, .stat-row, .ft-grid { grid-template-columns: 1fr; }
      .bento-item.lg { grid-column: span 1; min-height: 240px; }
      .intro-pic, .intro-pic img, .case-main, .case-main img { min-height: 240px; }
      .fields { grid-template-columns: 1fr; }
      .field.full { grid-column: auto; }
      .axis { grid-template-columns: 1fr; }
      .copy { flex-direction: column; }
      .params { grid-template-columns: 1fr; }
    }
    @media (max-width: 375px) {
      body { font-size: 16px; }
      .hero-copy h1, .hero-copy h2 { font-size: 26px; }
      .btn { width: 100%; }
      .hero-actions { width: 100%; }
      .nav-cta .btn { width: auto; padding-inline: 14px; font-size: 13px; }
    }
    @media (prefers-reduced-motion: reduce) {
      html { scroll-behavior: auto; }
      .slide { transition: none; }
      .card, .btn { transition: none; }
    }

/* roulang page: index */
:root {
      --orange: #E86A17;
      --amber: #F6B445;
      --cyan: #1AA6B8;
      --steel: #2C313A;
      --ink: #1C2026;
      --bg: #F3EEE6;
      --card: #FFFCFA;
      --line: #E7E0D6;
      --mute: #6B6460;
      --text: #2C313A;
      --white: #FFFCFA;
      --shadow: 0 10px 30px rgba(44, 49, 58, .08);
      --shadow-hover: 0 13px 32px rgba(44, 49, 58, .12);
      --radius: 24px;
      --radius-sm: 14px;
      --radius-pill: 999px;
      --container: 1240px;
      --nav-h: 68px;
      --grad: linear-gradient(90deg, #E86A17, #F6B445);
      --grad-turn: linear-gradient(102deg, #F07820, #F8C056);
    }
    *, *::before, *::after { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    html, body { margin: 0; padding: 0; }
    body {
      font-family: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
      font-size: 17px;
      line-height: 1.75;
      color: var(--text);
      background: var(--bg);
      letter-spacing: .01em;
    }
    body.nav-lock { overflow: hidden; }
    img { max-width: 100%; height: auto; display: block; }
    a { color: var(--cyan); text-decoration: none; transition: color .2s ease, opacity .2s ease; }
    a:hover { color: var(--orange); }
    button, input, select, textarea { font-family: inherit; font-size: inherit; }
    button { cursor: pointer; border: 0; background: none; }
    h1, h2, h3, h4 { margin: 0; letter-spacing: -.03em; font-weight: 800; line-height: 1.25; color: var(--steel); }
    p { margin: 0; }
    ul, ol, dl { margin: 0; padding: 0; }
    :focus-visible { outline: 2px solid var(--cyan); outline-offset: 3px; }
    .skip {
      position: absolute; left: -999px; top: 8px;
    }
    .skip:focus { left: 8px; z-index: 100; background: #fff; padding: 8px 12px; border-radius: 8px; }
    .container { width: min(100% - 32px, var(--container)); margin-inline: auto; }
    .num { font-variant-numeric: tabular-nums; letter-spacing: -.04em; white-space: nowrap; }
    .topbar {
      height: 42px;
      background: #EFE8DE;
      border-bottom: 1px solid var(--line);
      color: var(--mute);
      font-size: 13px;
    }
    .topbar-inner {
      height: 100%;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
    }
    .top-contact { display: flex; align-items: center; gap: 18px; flex-wrap: wrap; }
    .top-contact a { color: var(--steel); font-weight: 600; }
    .top-contact a:hover { color: var(--orange); }
    .top-badges { display: flex; gap: 8px; }
    .micro-badge {
      display: inline-flex; align-items: center; gap: 6px;
      height: 28px; padding: 0 10px; border-radius: var(--radius-pill);
      background: #fff; border: 1px solid var(--line); color: var(--steel); font-weight: 600; font-size: 12px;
    }
    .micro-badge i {
      width: 7px; height: 7px; border-radius: 50%; background: var(--cyan); display: inline-block;
    }
    .site-nav {
      position: sticky; top: 0; z-index: 80;
      background: var(--steel);
      border-bottom: 1px solid rgba(255,255,255,.08);
      transition: min-height .2s ease, box-shadow .2s ease;
    }
    .site-nav.is-compact { box-shadow: 0 8px 24px rgba(28,32,38,.18); }
    .nav-inner {
      min-height: var(--nav-h);
      display: grid;
      grid-template-columns: auto 1fr auto;
      align-items: center;
      gap: 18px;
    }
    .logo {
      display: flex; align-items: center; gap: 10px; color: #fff; font-weight: 800; letter-spacing: -.04em;
    }
    .logo:hover { color: #fff; opacity: .92; }
    .logo-mark {
      width: 36px; height: 36px; border-radius: 10px;
      background: var(--grad); display: grid; place-items: center;
      color: #fff; font-size: 16px; box-shadow: 0 6px 14px rgba(232,106,23,.28);
    }
    .logo-text { font-size: 18px; line-height: 1.1; }
    .logo-text small { display: block; font-size: 11px; font-weight: 500; opacity: .7; letter-spacing: .08em; }
    .nav-links { display: flex; justify-content: center; gap: 4px; flex-wrap: wrap; }
    .nav-links a {
      color: rgba(255,255,255,.82); font-size: 14px; font-weight: 600;
      padding: 10px 12px; min-height: 44px; display: inline-flex; align-items: center;
      position: relative;
    }
    .nav-links a:hover { color: #fff; }
    .nav-links a.active { color: #fff; }
    .nav-links a.active::after {
      content: ""; position: absolute; left: 12px; right: 12px; bottom: 6px; height: 3px;
      border-radius: 99px; background: var(--grad);
    }
    .nav-cta { display: flex; align-items: center; gap: 10px; }
    .menu-toggle {
      display: none; width: 44px; height: 44px; border-radius: 12px;
      border: 1px solid rgba(255,255,255,.16); color: #fff;
      align-items: center; justify-content: center; flex-direction: column; gap: 5px;
    }
    .menu-toggle span { width: 18px; height: 2px; background: #fff; border-radius: 2px; display: block; }
    .btn {
      display: inline-flex; align-items: center; justify-content: center; gap: 8px;
      min-height: 44px; padding: 10px 20px; border-radius: var(--radius-pill);
      font-weight: 700; letter-spacing: .02em; transition: transform .2s ease, box-shadow .2s ease, filter .2s ease, background .2s ease, border-color .2s ease;
      text-decoration: none; border: 1px solid transparent;
    }
    .btn-primary { background: var(--grad); color: #fff; box-shadow: var(--shadow); }
    .btn-primary:hover { background: var(--grad-turn); color: #fff; transform: translateY(-3px); box-shadow: var(--shadow-hover); filter: brightness(1.06); }
    .btn-primary:active { transform: translateY(-1px); }
    .btn-ghost { background: transparent; color: #fff; border-color: rgba(255,255,255,.28); }
    .btn-ghost:hover { color: #fff; border-color: var(--amber); transform: translateY(-2px); }
    .btn-steel { background: #fff; color: var(--steel); border-color: var(--steel); border-radius: 14px; }
    .btn-steel:hover { background: var(--steel); color: #fff; }
    .btn-block { width: 100%; }
    .drawer {
      position: fixed; inset: 0 0 0 auto; width: min(86vw, 380px); background: var(--ink);
      transform: translateX(100%); transition: transform .28s ease; z-index: 90;
      padding: 24px 20px 32px; display: flex; flex-direction: column; gap: 18px;
      box-shadow: -16px 0 40px rgba(0,0,0,.24);
    }
    .drawer.open { transform: translateX(0); }
    .drawer-top { color: rgba(255,255,255,.78); font-size: 14px; display: grid; gap: 8px; padding-bottom: 12px; border-bottom: 1px solid rgba(255,255,255,.08); }
    .drawer-top a { color: #fff; font-weight: 700; }
    .drawer nav { display: grid; gap: 4px; }
    .drawer nav a {
      color: #fff; font-size: 20px; font-weight: 700; min-height: 48px;
      display: flex; align-items: center; border-bottom: 1px solid rgba(255,255,255,.06);
    }
    .backdrop {
      position: fixed; inset: 0; background: rgba(28,32,38,.46); opacity: 0; pointer-events: none;
      transition: opacity .28s ease; z-index: 85;
    }
    .backdrop.show { opacity: 1; pointer-events: auto; }
    .hero {
      position: relative; height: 86vh; min-height: 640px; max-height: 920px; overflow: hidden; background: var(--ink);
    }
    .slides { height: 100%; }
    .slide {
      position: absolute; inset: 0; opacity: 0; visibility: hidden; transition: opacity .6s ease;
    }
    .slide.active { opacity: 1; visibility: visible; z-index: 1; }
    .slide-bg { width: 100%; height: 100%; object-fit: cover; filter: saturate(.92) contrast(1.05); }
    .slide::after {
      content: ""; position: absolute; inset: 0;
      background:
        linear-gradient(90deg, rgba(28,32,38,.72) 0%, rgba(28,32,38,.38) 48%, rgba(28,32,38,.55) 100%),
        linear-gradient(180deg, rgba(28,32,38,.18), rgba(28,32,38,.5));
    }
    .hero-inner {
      position: absolute; inset: 0; z-index: 2; display: flex; align-items: center;
    }
    .hero-grid {
      display: grid; grid-template-columns: 1.15fr .85fr; gap: 28px; align-items: center; width: 100%;
    }
    .brand-kicker {
      display: inline-flex; align-items: center; gap: 8px; color: #fff; font-weight: 700; font-size: 13px;
      padding: 6px 12px; border-radius: 999px; background: rgba(232,106,23,.18); border: 1px solid rgba(246,180,69,.35);
      margin-bottom: 14px;
    }
    .brand-kicker::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--amber); }
    .hero h1, .hero-title {
      font-size: clamp(32px, 4.2vw, 52px); color: #fff; font-weight: 800; margin-bottom: 14px; max-width: 16ch;
    }
    .hero-lead { color: rgba(255,255,255,.88); font-size: 16px; line-height: 1.8; max-width: 42em; margin-bottom: 22px; }
    .hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 22px; }
    .badge-row { display: flex; flex-wrap: wrap; gap: 8px; }
    .data-badge {
      display: inline-flex; align-items: center; gap: 8px;
      background: #fff; color: var(--steel); border-radius: 999px; padding: 8px 12px;
      box-shadow: var(--shadow); font-size: 13px; font-weight: 600;
    }
    .data-badge strong { font-size: 16px; font-variant-numeric: tabular-nums; color: var(--orange); }
    .data-badge.dark { background: rgba(28,32,38,.72); color: #fff; border: 1px solid rgba(255,255,255,.1); }
    .data-badge.dark strong { color: var(--amber); }
    .ba-stack { display: grid; gap: 12px; }
    .ba-card {
      border-radius: 22px; overflow: hidden; background: rgba(255,252,250,.08);
      border: 1px solid rgba(255,255,255,.12); backdrop-filter: none; padding: 16px 18px;
    }
    .ba-card .tag {
      display: inline-block; font-size: 12px; font-weight: 800; letter-spacing: .12em;
      padding: 4px 8px; border-radius: 999px; margin-bottom: 8px;
    }
    .ba-card.before .tag { background: rgba(255,255,255,.12); color: #fff; }
    .ba-card.after { background: linear-gradient(135deg, rgba(232,106,23,.22), rgba(26,166,184,.12)); border-color: rgba(246,180,69,.4); }
    .ba-card.after .tag { background: var(--grad); color: #fff; }
    .ba-card h3 { color: #fff; font-size: 18px; margin-bottom: 6px; }
    .ba-card p { color: rgba(255,255,255,.82); font-size: 14px; }
    .hero-nav {
      position: absolute; z-index: 3; inset: auto 16px 22px 16px;
      display: flex; justify-content: space-between; align-items: center;
    }
    .arrow {
      width: 44px; height: 44px; border-radius: 50%; border: 1px solid rgba(255,255,255,.3);
      color: #fff; display: grid; place-items: center; background: rgba(28,32,38,.35);
    }
    .arrow:hover { background: var(--orange); border-color: var(--orange); }
    .dots { display: flex; gap: 8px; }
    .dots button {
      width: 28px; height: 6px; border-radius: 99px; background: rgba(255,255,255,.28);
    }
    .dots button.active { background: var(--grad); width: 42px; }
    main { overflow: clip; }
    .section { padding: 88px 0; position: relative; }
    .section.alt { background: #EFE8DE; }
    .section-head { margin-bottom: 28px; max-width: 760px; }
    .section-head.center { margin-inline: auto; text-align: center; }
    .kicker {
      display: inline-flex; align-items: center; gap: 8px; color: var(--orange); font-weight: 800; font-size: 13px;
      letter-spacing: .08em; margin-bottom: 10px;
    }
    .kicker::before { content: ""; width: 18px; height: 6px; border-radius: 99px; background: var(--grad); }
    .section h2 { font-size: clamp(26px, 3vw, 36px); margin-bottom: 12px; }
    .lead { color: var(--mute); font-size: 16px; max-width: 54em; }
    .kpi-grid {
      display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px;
    }
    .kpi-card {
      background: var(--card); border-radius: 26px; padding: 26px;
      box-shadow: var(--shadow); border-left: 4px solid var(--orange);
      min-height: 220px; display: flex; flex-direction: column; gap: 10px;
      transition: transform .2s ease, box-shadow .2s ease;
    }
    .kpi-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-hover); }
    .kpi-card span { color: var(--mute); font-size: 14px; font-weight: 700; }
    .kpi-num { font-size: clamp(40px, 4vw, 56px); font-weight: 800; color: var(--steel); line-height: 1; }
    .kpi-num em { font-style: normal; font-size: .42em; color: var(--orange); margin-left: 4px; }
    .trend { height: 8px; border-radius: 99px; background: #E7E0D6; overflow: hidden; }
    .trend > i { display: block; height: 100%; border-radius: 99px; background: var(--grad); }
    .kpi-card p { color: var(--mute); font-size: 14px; }
    .split { display: grid; grid-template-columns: 1.05fr .95fr; gap: 36px; align-items: center; }
    .media {
      border-radius: 28px; overflow: hidden; box-shadow: var(--shadow); position: relative;
    }
    .media img { width: 100%; height: 100%; object-fit: cover; min-height: 420px; }
    .media .float-badge { position: absolute; left: 16px; bottom: 16px; }
    .spec {
      width: 100%; border-collapse: collapse; margin-top: 18px; background: var(--card);
      border-radius: 18px; overflow: hidden; box-shadow: var(--shadow);
    }
    .spec th, .spec td { text-align: left; padding: 12px 16px; font-size: 15px; border-bottom: 1px solid var(--line); }
    .spec th { width: 28%; color: var(--mute); font-weight: 600; background: #F7F1E8; }
    .spec tr:last-child th, .spec tr:last-child td { border-bottom: 0; }
    .bento {
      display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px;
      grid-auto-rows: minmax(180px, auto);
    }
    .bento-card {
      background: var(--card); border-radius: 24px; padding: 24px; box-shadow: var(--shadow);
      border-top: 6px solid #F6B445; display: flex; flex-direction: column; gap: 10px;
      transition: transform .2s ease, box-shadow .2s ease;
    }
    .bento-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-hover); }
    .bento-card.lg { grid-column: span 2; min-height: 280px; }
    .bento-card h3 { font-size: 22px; }
    .icon-line { width: 42px; height: 42px; color: var(--orange); }
    .bento-card ul { list-style: none; display: grid; gap: 6px; color: var(--mute); font-size: 15px; }
    .bento-card ul li::before { content: ""; display: inline-block; width: 8px; height: 8px; border-radius: 50%; background: var(--cyan); margin-right: 8px; }
    .tier-row {
      display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-bottom: 22px;
    }
    .tier {
      background: var(--card); border-radius: 22px; padding: 22px; box-shadow: var(--shadow);
      border: 1px solid var(--line); position: relative;
    }
    .tier.hot { border: 2px solid var(--orange); transform: translateY(-4px); }
    .tier .flag {
      position: absolute; top: -12px; right: 16px; background: var(--grad); color: #fff;
      font-size: 12px; font-weight: 800; padding: 4px 10px; border-radius: 999px;
    }
    .tier h3 { font-size: 20px; margin-bottom: 8px; }
    .tier p, .tier li { color: var(--mute); font-size: 14px; }
    .tier ul { list-style: none; display: grid; gap: 6px; margin: 10px 0 0; }
    .inc { color: var(--steel); font-weight: 600; }
    .exc { color: var(--mute); }
    .product-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
    .product-card {
      background: var(--card); border-radius: 26px; overflow: hidden; box-shadow: var(--shadow);
      display: flex; flex-direction: column; transition: transform .2s ease, box-shadow .2s ease;
      position: relative;
    }
    .product-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-hover); }
    .product-card img { width: 100%; height: 220px; object-fit: cover; }
    .no { position: absolute; top: 14px; left: 14px; background: var(--ink); color: #fff; font-weight: 800; font-size: 12px; padding: 6px 10px; border-radius: 999px; }
    .product-body { padding: 20px 22px 24px; display: grid; gap: 10px; }
    .params { display: grid; gap: 6px; font-size: 14px; color: var(--mute); }
    .params b { color: var(--steel); font-weight: 700; }
    .compare-wrap { overflow-x: auto; border-radius: 24px; box-shadow: var(--shadow); background: var(--card); }
    table.compare { width: 100%; min-width: 720px; border-collapse: collapse; }
    .compare th, .compare td { padding: 16px 18px; text-align: left; border-bottom: 1px solid var(--line); font-size: 15px; }
    .compare thead th { background: var(--steel); color: #fff; font-weight: 700; }
    .compare tbody th { width: 18%; font-weight: 700; background: #F7F1E8; }
    .win { color: var(--steel); font-weight: 700; position: relative; padding-left: 18px; }
    .win::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--cyan); position: absolute; left: 0; top: 10px; }
    .section-dark {
      background:
        linear-gradient(135deg, rgba(232,106,23,.07), transparent 42%),
        linear-gradient(rgba(255,255,255,.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,.03) 1px, transparent 1px),
        var(--ink);
      background-size: auto, 42px 42px, 42px 42px, auto;
      color: #fff; padding: 88px 0;
    }
    .section-dark h2, .section-dark .lead { color: #fff; }
    .section-dark .lead { color: rgba(255,255,255,.78); }
    .case-layout { display: grid; grid-template-columns: 1.2fr .8fr; gap: 18px; }
    .case-main { border-radius: 26px; overflow: hidden; position: relative; min-height: 460px; }
    .case-main img { width: 100%; height: 100%; object-fit: cover; min-height: 460px; }
    .case-main figcaption {
      position: absolute; left: 18px; right: 18px; bottom: 18px; color: #fff;
      background: rgba(28,32,38,.55); border-radius: 18px; padding: 16px;
    }
    .case-side { display: grid; gap: 16px; }
    .mini-case {
      background: rgba(255,252,250,.06); border: 1px solid rgba(255,255,255,.1);
      border-radius: 22px; padding: 20px; border-left: 4px solid var(--amber);
    }
    .mini-case h3 { color: #fff; font-size: 20px; margin-bottom: 8px; }
    .mini-case p { color: rgba(255,255,255,.78); font-size: 15px; }
    .principle {
      margin-top: 18px; padding: 16px 18px; border-radius: 16px;
      background: rgba(232,106,23,.12); border: 1px solid rgba(246,180,69,.25); color: #fff;
    }
    .timeline {
      display: grid; grid-template-columns: repeat(5, 1fr); gap: 12px; position: relative;
    }
    .timeline::before {
      content: ""; position: absolute; left: 4%; right: 4%; top: 28px; height: 4px;
      background: var(--grad); border-radius: 99px;
    }
    .node {
      background: var(--card); border-radius: 22px; padding: 22px 18px 18px; box-shadow: var(--shadow);
      position: relative; margin-top: 18px;
    }
    .node i {
      width: 18px; height: 18px; border-radius: 50%; background: var(--orange); border: 3px solid #fff;
      position: absolute; top: -28px; left: 22px; box-shadow: 0 0 0 4px rgba(232,106,23,.18);
    }
    .node time { color: var(--orange); font-weight: 800; font-size: 13px; }
    .node h3 { font-size: 18px; margin: 6px 0; }
    .node p { color: var(--mute); font-size: 14px; }
    .story-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
    .story {
      background: var(--card); border-radius: 24px; padding: 24px; box-shadow: var(--shadow);
      border-top: 6px solid var(--orange); display: grid; gap: 12px;
    }
    .avatar {
      width: 48px; height: 48px; border-radius: 16px; display: grid; place-items: center;
      color: #fff; font-weight: 800;
    }
    .a1 { background: var(--orange); }
    .a2 { background: var(--cyan); }
    .a3 { background: var(--steel); }
    .story h3 { font-size: 18px; }
    .story p { color: var(--mute); font-size: 15px; }
    .stats-bar {
      background: var(--grad); color: #fff; padding: 36px 0; border-radius: 0;
    }
    .stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; text-align: center; }
    .stat strong { display: block; font-size: 48px; font-variant-numeric: tabular-nums; letter-spacing: -.04em; line-height: 1.1; }
    .stat span { font-size: 14px; font-weight: 600; opacity: .92; }
    .review-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
    .review {
      background: var(--card); border-radius: 22px; padding: 22px; box-shadow: var(--shadow);
      display: grid; gap: 10px;
    }
    .stars { display: flex; gap: 4px; }
    .stars i { width: 10px; height: 10px; border-radius: 50%; background: var(--orange); display: block; }
    .stars i.off { background: #E7E0D6; }
    .review p { font-size: 15px; color: var(--steel); }
    .review cite { font-style: normal; color: var(--mute); font-size: 13px; font-weight: 600; }
    .news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
    .news-card {
      background: var(--card); border-radius: 24px; overflow: hidden; box-shadow: var(--shadow);
      display: flex; flex-direction: column; transition: transform .2s ease;
    }
    .news-card:hover { transform: translateY(-3px); }
    .news-card img { width: 100%; height: 180px; object-fit: cover; }
    .news-card div { padding: 18px 18px 20px; display: grid; gap: 8px; }
    .news-card time { color: var(--orange); font-size: 13px; font-weight: 700; }
    .news-card h3 { font-size: 18px; }
    .news-card p { color: var(--mute); font-size: 14px; }
    .support-list { display: grid; gap: 12px; }
    .support-item {
      background: var(--card); border-radius: 18px; padding: 18px 20px; box-shadow: var(--shadow);
      display: grid; grid-template-columns: 52px 1fr auto; gap: 14px; align-items: center;
      border-left: 4px solid var(--orange);
    }
    .support-item h3 { font-size: 18px; }
    .support-item p { color: var(--mute); font-size: 14px; }
    .chips { display: flex; flex-wrap: wrap; gap: 10px; }
    .chip {
      min-height: 44px; padding: 8px 16px; border-radius: 999px; border: 1px solid var(--line);
      background: #fff; font-weight: 700; color: var(--steel);
    }
    .chip:hover, .chip.active { border-color: var(--orange); color: var(--orange); box-shadow: var(--shadow); }
    .faq { display: grid; gap: 10px; }
    .faq-item { background: var(--card); border-radius: 18px; box-shadow: var(--shadow); overflow: hidden; }
    .faq-item button {
      width: 100%; text-align: left; padding: 16px 18px; min-height: 56px;
      font-weight: 800; color: var(--steel); display: flex; justify-content: space-between; gap: 12px; align-items: center;
    }
    .faq-item button span.plus { color: var(--orange); font-size: 22px; }
    .faq-item .ans { display: none; padding: 0 18px 16px; color: var(--mute); font-size: 15px; }
    .faq-item.open .ans { display: block; }
    .form-shell {
      background: var(--card); border-radius: 28px; box-shadow: var(--shadow);
      display: grid; grid-template-columns: .9fr 1.1fr; overflow: hidden;
      border-top: 8px solid #F6B445;
    }
    .form-copy { padding: 36px 32px; background: #F7F1E8; }
    .form-copy ul { list-style: none; margin: 16px 0; display: grid; gap: 8px; }
    .form-copy li { padding-left: 18px; position: relative; color: var(--mute); }
    .form-copy li::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--cyan); position: absolute; left: 0; top: 10px; }
    .form-panel { padding: 32px; }
    .fields { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
    .field { display: grid; gap: 6px; }
    .field.full { grid-column: 1 / -1; }
    label { font-size: 13px; font-weight: 700; color: var(--steel); }
    input, select, textarea {
      height: 48px; border-radius: 12px; border: 1px solid var(--line); padding: 0 12px;
      background: #fff; color: var(--steel);
    }
    textarea { height: 96px; padding: 10px 12px; resize: vertical; }
    input:focus, select:focus, textarea:focus { border-color: var(--cyan); outline: none; box-shadow: 0 0 0 3px rgba(26,166,184,.15); }
    .field.error input, .field.error select { border-color: var(--orange); }
    .err { color: var(--orange); font-size: 12px; display: none; }
    .field.error .err { display: block; }
    .addons { display: flex; flex-wrap: wrap; gap: 8px; }
    .addons label { display: flex; align-items: center; gap: 6px; font-weight: 600; background: #fff; border: 1px solid var(--line); border-radius: 999px; padding: 8px 12px; min-height: 44px; }
    .urgent {
      margin-top: 16px; background: var(--ink); color: #fff; border-radius: 16px; padding: 14px 16px;
      display: flex; justify-content: space-between; gap: 12px; align-items: center;
    }
    .form-ok {
      display: none; margin-top: 12px; padding: 12px 14px; border-radius: 12px;
      background: rgba(26,166,184,.12); color: var(--steel); font-weight: 600;
    }
    .site-footer { background: var(--steel); color: rgba(255,255,255,.78); padding: 56px 0 24px; }
    .footer-grid { display: grid; grid-template-columns: 1.2fr .9fr 1fr; gap: 28px; margin-bottom: 28px; }
    .site-footer h3 { color: #fff; font-size: 18px; margin-bottom: 12px; }
    .site-footer a { color: rgba(255,255,255,.78); display: inline-block; min-height: 32px; }
    .site-footer a:hover { color: var(--amber); }
    .foot-map { display: grid; gap: 4px; }
    .copy { border-top: 1px solid rgba(255,255,255,.1); padding-top: 16px; font-size: 13px; display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
    @media (max-width: 1280px) {
      .kpi-grid, .review-grid { grid-template-columns: repeat(2, 1fr); }
      .bento { grid-template-columns: repeat(2, 1fr); }
      .bento-card.lg { grid-column: span 2; }
    }
    @media (max-width: 1024px) {
      .nav-links { display: none; }
      .menu-toggle { display: flex; }
      .hero-grid, .split, .case-layout, .form-shell, .footer-grid { grid-template-columns: 1fr; }
      .timeline { grid-template-columns: 1fr; }
      .timeline::before { left: 30px; right: auto; top: 0; bottom: 0; width: 4px; height: auto; }
      .node { margin-left: 28px; }
      .node i { left: -32px; top: 22px; }
      .product-grid, .story-grid, .news-grid, .tier-row { grid-template-columns: 1fr 1fr; }
      .hero { height: 78vh; min-height: 580px; }
    }
    @media (max-width: 768px) {
      .topbar { display: none; }
      .section, .section-dark { padding: 56px 0; }
      .kpi-grid, .product-grid, .story-grid, .news-grid, .review-grid, .tier-row, .stats-grid, .fields { grid-template-columns: 1fr; }
      .bento { grid-template-columns: 1fr; }
      .bento-card.lg { grid-column: span 1; }
      .hero { height: auto; min-height: 0; max-height: none; }
      .slide { position: relative; opacity: 1; visibility: visible; display: none; }
      .slide.active { display: block; }
      .slide-bg { min-height: 220px; height: 42vh; }
      .hero-inner { position: relative; padding: 24px 0 72px; }
      .hero h1, .hero-title { max-width: none; font-size: 30px; }
      .support-item { grid-template-columns: 1fr; }
      .copy, .urgent { flex-direction: column; }
      .media img, .case-main img { min-height: 240px; }
    }
    @media (max-width: 520px) {
      body { font-size: 16px; }
      .container { width: min(100% - 24px, var(--container)); }
      .logo-text { font-size: 16px; }
      .hero-actions .btn { width: 100%; }
      .stats-bar .stat strong { font-size: 36px; }
    }
    @media (prefers-reduced-motion: reduce) {
      html { scroll-behavior: auto; }
      *, *::before, *::after { animation: none !important; transition: none !important; }
    }