/* roulang page: index */
:root {
      --teal: #0F766E;
      --teal-deep: #0B5E58;
      --teal-soft: #D7ECE8;
      --graphite: #1C1917;
      --khaki: #F4F1EC;
      --khaki-2: #EFE8DE;
      --amber: #EA580C;
      --amber-deep: #C2410C;
      --info: #5F6B66;
      --dark: #141210;
      --dark-2: #1A1714;
      --dark-text: #D7ECE8;
      --highlight: #F4B183;
      --border: #E7E1D8;
      --white: #FFFCF8;
      --danger: #C2410C;
      --shadow: 0 8px 24px rgba(28, 25, 23, 0.08);
      --shadow-sm: 0 4px 12px rgba(28, 25, 23, 0.06);
      --radius: 14px;
      --radius-sm: 10px;
      --radius-ui: 8px;
      --container: 1240px;
      --gutter: 24px;
      --header-utility: 40px;
      --header-main: 68px;
      --sticky: 64px;
      --fs-h1: 46px;
      --fs-h2: 30px;
      --fs-h3: 20px;
      --fs-body: 16px;
      --fs-sm: 13px;
      --lh: 1.75;
      --z-header: 80;
      --z-drawer: 90;
      --z-sticky: 70;
    }
    *, *::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: var(--fs-body);
      line-height: var(--lh);
      color: var(--graphite);
      background: var(--khaki);
      overflow-x: hidden;
    }
    img { max-width: 100%; height: auto; display: block; }
    a { color: var(--teal); text-decoration: none; transition: color .2s ease, opacity .2s ease; }
    a:hover { color: var(--teal-deep); }
    button, input, select, textarea { font-family: inherit; font-size: inherit; }
    button { cursor: pointer; border: 0; background: none; }
    ul, ol { margin: 0; padding: 0; list-style: none; }
    h1, h2, h3, p { margin: 0; }
    h1, h2, h3 { line-height: 1.28; letter-spacing: .02em; }
    :focus-visible {
      outline: 2px solid var(--teal);
      outline-offset: 3px;
    }
    .container {
      width: min(var(--container), calc(100% - 40px));
      margin: 0 auto;
    }
    .skip {
      position: absolute; left: -999px; top: 0;
    }
    .skip:focus { left: 16px; top: 16px; background: #fff; padding: 8px 12px; z-index: 100; }
    .btn {
      display: inline-flex; align-items: center; justify-content: center; gap: 8px;
      min-height: 44px; padding: 0 20px; border-radius: var(--radius-sm);
      font-weight: 600; letter-spacing: .04em; transition: transform .2s ease, background .2s ease, color .2s ease, border-color .2s ease, box-shadow .2s ease;
    }
    .btn:hover { transform: translateY(-1px); }
    .btn:active { transform: translateY(0); }
    .btn-primary { background: var(--amber); color: #fff; }
    .btn-primary:hover { background: var(--amber-deep); color: #fff; }
    .btn-outline {
      background: transparent; color: var(--teal); border: 1.5px solid var(--teal);
    }
    .btn-outline:hover { background: var(--teal); color: #fff; }
    .btn-ghost { background: rgba(255,252,248,.12); color: var(--white); border: 1px solid rgba(215,236,232,.35); }
    .btn-ghost:hover { background: rgba(255,252,248,.2); color: #fff; }
    .btn-text { color: var(--teal); font-weight: 600; min-height: 36px; padding: 0 8px; }
    .btn-text:hover { color: var(--teal-deep); }
    .site-header {
      position: sticky; top: 0; z-index: var(--z-header);
      background: var(--white);
      border-bottom: 1px solid transparent;
      transition: border-color .2s ease, box-shadow .2s ease;
    }
    .site-header.is-scrolled {
      border-bottom-color: var(--border);
      box-shadow: var(--shadow-sm);
    }
    .utility-bar {
      height: var(--header-utility);
      background: var(--graphite);
      color: var(--dark-text);
      font-size: var(--fs-sm);
    }
    .utility-inner {
      height: 100%;
      display: grid;
      grid-template-columns: 1fr auto 1fr;
      align-items: center;
      gap: 16px;
    }
    .utility-left, .utility-right, .utility-mid {
      display: flex; align-items: center; gap: 14px; white-space: nowrap;
    }
    .utility-mid { justify-content: center; }
    .utility-right { justify-content: flex-end; }
    .utility-bar a { color: var(--dark-text); }
    .utility-bar a:hover { color: var(--highlight); }
    .trust-mini { color: var(--highlight); }
    .dot-split::before { content: "·"; margin: 0 8px; opacity: .5; }
    .main-nav {
      height: var(--header-main);
    }
    .nav-inner {
      height: 100%;
      display: flex; align-items: center; justify-content: space-between; gap: 20px;
    }
    .logo {
      display: flex; align-items: center; gap: 10px;
      color: var(--graphite); font-weight: 700; font-size: 18px; letter-spacing: .04em;
      flex-shrink: 0;
    }
    .logo-mark {
      width: 28px; height: 28px; border-radius: 8px;
      background: var(--teal); color: #fff;
      display: grid; place-items: center;
    }
    .logo:hover { color: var(--teal); }
    .nav-list {
      display: flex; align-items: center; gap: 6px;
    }
    .nav-list a {
      position: relative;
      color: var(--graphite);
      padding: 10px 10px 12px;
      font-size: 15px;
      font-weight: 500;
    }
    .nav-list a::after {
      content: "";
      position: absolute; left: 10px; right: 10px; bottom: 4px;
      height: 2px; background: var(--teal);
      transform: scaleX(0); transform-origin: left;
      transition: transform .2s ease;
    }
    .nav-list a:hover, .nav-list a.is-active { color: var(--teal); }
    .nav-list a:hover::after, .nav-list a.is-active::after { transform: scaleX(1); }
    .nav-cta { flex-shrink: 0; }
    .nav-icons { display: none; align-items: center; gap: 6px; }
    .icon-btn {
      width: 44px; height: 44px; display: grid; place-items: center;
      color: var(--graphite); border-radius: 10px;
    }
    .icon-btn:hover { background: var(--khaki-2); color: var(--teal); }
    .drawer {
      position: fixed; inset: 0; z-index: var(--z-drawer);
      background: var(--white);
      transform: translateX(100%);
      transition: transform .28s ease;
      display: flex; flex-direction: column;
      padding: 20px 24px 40px;
    }
    .drawer.is-open { transform: translateX(0); }
    .drawer-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 28px; }
    .drawer-list { display: flex; flex-direction: column; gap: 6px; }
    .drawer-list a {
      display: flex; align-items: center;
      min-height: 48px; padding: 0 8px;
      color: var(--graphite); font-size: 20px; font-weight: 600;
      border-bottom: 1px solid var(--border);
    }
    .drawer-contact { margin-top: auto; color: var(--info); font-size: 14px; }
    body.menu-open { overflow: hidden; }
    .hero {
      position: relative;
      min-height: clamp(520px, 56vw, 680px);
      overflow: hidden;
      background: var(--dark);
    }
    .hero-track { position: absolute; inset: 0; }
    .hero-slide {
      position: absolute; inset: 0;
      opacity: 0; visibility: hidden;
      transition: opacity .6s ease;
    }
    .hero-slide.is-on { opacity: 1; visibility: visible; }
    .hero-slide img {
      width: 100%; height: 100%; object-fit: cover; filter: saturate(.85) contrast(1.05);
    }
    .hero-mask {
      position: absolute; inset: 0;
      background: linear-gradient(90deg, rgba(20,18,16,.9) 0%, rgba(20,18,16,.62) 48%, rgba(20,18,16,.28) 100%);
    }
    .hero-content {
      position: relative; z-index: 2;
      min-height: clamp(520px, 56vw, 680px);
      display: flex; flex-direction: column; justify-content: center;
      padding: 48px 0 86px;
    }
    .brand-chip {
      display: inline-flex; align-items: center; gap: 8px;
      color: var(--highlight); font-size: 13px; font-weight: 600;
      letter-spacing: .12em; margin-bottom: 16px;
    }
    .hero h1 {
      max-width: 18em;
      font-size: var(--fs-h1);
      color: var(--white);
      font-weight: 700;
      margin-bottom: 18px;
    }
    .hero-lead {
      max-width: 38em;
      color: var(--dark-text);
      font-size: 16px;
      margin-bottom: 28px;
    }
    .hero-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 28px; }
    .stage-chips { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 8px; }
    .chip {
      display: inline-flex; align-items: center; gap: 6px;
      padding: 4px 10px; border-radius: 999px;
      background: rgba(215,236,232,.12); color: var(--dark-text);
      font-size: 12px; border: 1px solid rgba(215,236,232,.2);
    }
    .chip i {
      width: 7px; height: 7px; border-radius: 50%; background: var(--highlight);
    }
    .trust-strip {
      position: absolute; left: 0; right: 0; bottom: 0; z-index: 3;
      background: rgba(20,18,16,.72);
      border-top: 1px solid rgba(215,236,232,.12);
    }
    .trust-row {
      display: flex; justify-content: space-between; gap: 12px;
      padding: 12px 0; color: var(--dark-text); font-size: 13px;
    }
    .trust-item { display: flex; align-items: center; gap: 8px; }
    .trust-item strong { color: var(--white); font-weight: 650; }
    .hero-ctrl {
      position: absolute; z-index: 4; top: 46%;
      width: 44px; height: 44px; border-radius: 50%;
      background: rgba(20,18,16,.45); color: #fff;
      display: grid; place-items: center;
      border: 1px solid rgba(255,255,255,.2);
    }
    .hero-ctrl:hover { background: var(--teal); }
    .hero-prev { left: 16px; }
    .hero-next { right: 16px; }
    .hero-dots {
      position: absolute; z-index: 4; right: 28px; bottom: 64px;
      display: flex; gap: 6px; align-items: center;
    }
    .hero-dots button {
      width: 28px; height: 4px; border-radius: 99px; background: rgba(255,255,255,.28);
    }
    .hero-dots button.is-on { background: var(--highlight); }
    .hero-pause {
      position: absolute; z-index: 4; right: 28px; bottom: 88px;
      color: #fff; font-size: 12px; min-height: 32px; padding: 0 10px;
      border: 1px solid rgba(255,255,255,.25); border-radius: 8px;
    }
    main section { scroll-margin-top: calc(var(--header-utility) + var(--header-main) + 12px); }
    .sec {
      padding: 84px 0;
    }
    .sec-kicker {
      color: var(--teal); font-size: 13px; font-weight: 700; letter-spacing: .14em; margin-bottom: 10px;
    }
    .sec h2 {
      font-size: var(--fs-h2); margin-bottom: 14px; max-width: 18em;
    }
    .sec-lead {
      max-width: 42em; color: var(--info); margin-bottom: 36px;
    }
    .sec-alt { background: var(--white); }
    .steps {
      display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px;
      position: relative;
    }
    .steps::before {
      content: "";
      position: absolute; top: 38px; left: 8%; right: 8%;
      height: 2px;
      background: repeating-linear-gradient(90deg, var(--teal) 0 10px, transparent 10px 18px);
      opacity: .35;
    }
    .step { position: relative; }
    .step-no {
      font-size: 42px; font-weight: 800; color: var(--teal); letter-spacing: .04em;
      font-variant-numeric: tabular-nums; line-height: 1;
      margin-bottom: 10px;
    }
    .step h3 { font-size: var(--fs-h3); margin-bottom: 8px; }
    .step p { color: var(--info); margin-bottom: 14px; }
    .mini-funnel { display: flex; gap: 6px; margin-bottom: 16px; }
    .mini-funnel span {
      height: 8px; border-radius: 99px; background: var(--khaki-2);
    }
    .mini-funnel span.on { background: var(--teal); }
    .mini-funnel span:nth-child(1) { width: 28%; }
    .mini-funnel span:nth-child(2) { width: 22%; }
    .mini-funnel span:nth-child(3) { width: 16%; }
    .mini-funnel span:nth-child(4) { width: 12%; }
    .product-grid {
      display: grid; grid-template-columns: 1.05fr .95fr; gap: 40px; align-items: center;
    }
    .product-copy h2 { max-width: none; }
    .param-bar {
      display: flex; flex-wrap: wrap; gap: 8px; margin: 22px 0 26px;
    }
    .badge {
      display: inline-flex; align-items: center; gap: 6px;
      padding: 8px 12px; border-radius: 999px;
      background: var(--khaki); border: 1px solid var(--border);
      font-size: 13px; color: var(--graphite); font-weight: 600;
    }
    .badge em { color: var(--amber); font-style: normal; }
    .product-pic {
      position: relative; border-radius: var(--radius); overflow: hidden;
      box-shadow: var(--shadow); border: 1px solid var(--border);
    }
    .product-pic img { width: 100%; height: 420px; object-fit: cover; }
    .pic-caption {
      position: absolute; left: 16px; right: 16px; bottom: 16px;
      background: rgba(20,18,16,.78); color: var(--dark-text);
      border-radius: var(--radius-ui); padding: 10px 12px; font-size: 13px;
    }
    .bento {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      grid-auto-rows: minmax(168px, auto);
      gap: 18px;
    }
    .bento-card {
      position: relative; overflow: hidden;
      background: var(--white); border: 1px solid var(--border);
      border-radius: var(--radius); padding: 22px;
      box-shadow: var(--shadow-sm);
      transition: transform .2s ease, box-shadow .2s ease;
    }
    .bento-card:hover { transform: translateY(-2px); box-shadow: var(--shadow); }
    .bento-card:nth-child(1) { grid-column: 1 / 3; grid-row: 1 / 3; }
    .bento-card:nth-child(2) { grid-column: 3 / 5; }
    .bento-card:nth-child(3) { grid-column: 3 / 4; }
    .bento-card:nth-child(4) { grid-column: 4 / 5; }
    .bento-card:nth-child(5) { grid-column: 1 / 3; }
    .bento-card:nth-child(6) { grid-column: 3 / 5; }
    .bento-card h3 { font-size: var(--fs-h3); margin: 10px 0 10px; }
    .bento-card ul { color: var(--info); }
    .bento-card li { padding-left: 14px; position: relative; margin-bottom: 6px; }
    .bento-card li::before {
      content: ""; position: absolute; left: 0; top: 10px;
      width: 6px; height: 6px; border-radius: 50%; background: var(--teal);
    }
    .bento-card img {
      width: 100%; height: 140px; object-fit: cover; border-radius: var(--radius-ui); margin-top: 14px;
    }
    .bento-card:nth-child(1) img { height: 210px; }
    .progress {
      position: absolute; left: 0; right: 0; bottom: 0; height: 3px; background: transparent;
    }
    .progress i {
      display: block; height: 100%; width: 0; background: var(--teal);
      transition: width .35s ease;
    }
    .bento-card:hover .progress i { width: 78%; }
    .scene-layout {
      display: grid; grid-template-columns: 280px 1fr; gap: 24px;
    }
    .scene-tabs { display: flex; flex-direction: column; gap: 10px; }
    .scene-tab {
      text-align: left; min-height: 64px; padding: 12px 16px;
      border: 1px solid var(--border); border-radius: var(--radius-ui);
      background: var(--white); color: var(--graphite);
    }
    .scene-tab small { display: block; color: var(--info); font-size: 12px; margin-top: 4px; }
    .scene-tab.is-on {
      border-color: var(--teal); background: var(--teal-soft);
      box-shadow: inset 3px 0 0 var(--teal);
    }
    .demo-window {
      background: var(--dark-2); color: var(--dark-text);
      border-radius: var(--radius-ui); min-height: 430px; overflow: hidden;
      border: 1px solid #2A2623;
    }
    .demo-bar {
      display: flex; align-items: center; gap: 8px;
      padding: 10px 14px; background: #1C1917; border-bottom: 1px solid #2A2623;
      font-size: 12px;
    }
    .win-dots { display: flex; gap: 6px; }
    .win-dots i { width: 8px; height: 8px; border-radius: 50%; background: #5F6B66; }
    .win-dots i:first-child { background: #F4B183; }
    .demo-body { padding: 16px; }
    .demo-panel { display: none; }
    .demo-panel.is-on { display: block; }
    .kanban { display: grid; grid-template-columns: repeat(5, 1fr); gap: 10px; }
    .kanban-col {
      background: #1C1917; border-radius: 8px; padding: 10px; min-height: 320px;
    }
    .kanban-col header {
      display: flex; justify-content: space-between; font-size: 12px; color: var(--highlight); margin-bottom: 10px;
    }
    .k-card {
      background: #241F1C; border: 1px solid #3A342F; border-radius: 8px;
      padding: 10px; margin-bottom: 8px; font-size: 13px; color: #F4F1EC;
    }
    .k-card span { display: block; color: #9AA8A3; font-size: 12px; margin-top: 6px; }
    .funnel-bars { display: flex; flex-direction: column; gap: 10px; }
    .funnel-row { display: grid; grid-template-columns: 88px 1fr 48px; gap: 10px; align-items: center; font-size: 13px; }
    .funnel-row b { height: 18px; background: var(--teal); border-radius: 4px; display: block; }
    .timeline { border-left: 2px solid #3A342F; margin-left: 12px; padding-left: 18px; }
    .tl-item { margin-bottom: 16px; position: relative; }
    .tl-item::before {
      content: ""; position: absolute; left: -24px; top: 6px;
      width: 10px; height: 10px; border-radius: 50%; background: var(--highlight);
    }
    .modules {
      display: grid; grid-template-columns: 1.35fr .9fr .9fr; gap: 18px; align-items: stretch;
    }
    .module-card {
      background: var(--white); border: 1px solid var(--border); border-radius: var(--radius);
      padding: 26px; box-shadow: var(--shadow-sm);
    }
    .module-card:first-child { padding: 32px; background: #E8F3F1; border-color: #CDE4E0; }
    .module-card h3 { font-size: var(--fs-h3); margin: 8px 0 12px; }
    .module-card li {
      color: var(--info); padding: 7px 0 7px 18px; position: relative; border-bottom: 1px dashed var(--border);
    }
    .module-card li::before { content: "▸"; position: absolute; left: 0; color: var(--teal); }
    .module-card .btn { margin-top: 18px; }
    .cases {
      background: var(--dark); color: var(--dark-text); padding: 84px 0;
    }
    .cases h2 { color: var(--white); }
    .cases .sec-lead { color: #B7C7C3; }
    .cases-grid { display: grid; grid-template-columns: .85fr 1.15fr; gap: 32px; }
    .idea-side { padding-right: 12px; }
    .idea-side p { color: #B7C7C3; max-width: 28em; }
    .case-slices { display: grid; gap: 16px; }
    .case-card {
      display: grid; grid-template-columns: 148px 1fr; gap: 16px;
      background: #1C1917; border: 1px solid #2E2925; border-radius: 12px; overflow: hidden;
    }
    .case-card img { width: 100%; height: 100%; object-fit: cover; min-height: 148px; }
    .case-body { padding: 16px 16px 16px 0; }
    .case-body h3 { color: #fff; font-size: 18px; margin-bottom: 8px; }
    .quote {
      margin-top: 10px; padding-left: 12px; border-left: 3px solid var(--highlight);
      color: var(--highlight); font-size: 14px;
    }
    .trust-band { background: var(--khaki); padding: 42px 0; border-top: 1px solid var(--border); }
    .chip-groups { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-bottom: 22px; }
    .chip-block {
      background: var(--white); border: 1px solid var(--border); border-radius: 12px; padding: 18px;
    }
    .chip-block h3 { font-size: 18px; margin-bottom: 8px; }
    .tag-row { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 10px; }
    .tag {
      font-size: 12px; padding: 4px 10px; border-radius: 999px;
      background: var(--khaki-2); color: var(--graphite);
    }
    .norm-row { display: flex; flex-wrap: wrap; gap: 10px; color: var(--info); font-size: 13px; }
    .norm-row span {
      padding: 8px 12px; border: 1px dashed var(--border); border-radius: 8px; background: var(--white);
    }
    .stories-grid {
      display: grid; grid-template-columns: 1.4fr .8fr; gap: 20px;
    }
    .story-main {
      position: relative; border-radius: var(--radius); overflow: hidden; min-height: 430px;
    }
    .story-main img { width: 100%; height: 100%; object-fit: cover; min-height: 430px; }
    .story-main .overlay {
      position: absolute; inset: 0;
      background: linear-gradient(180deg, rgba(20,18,16,.15), rgba(20,18,16,.82));
      color: #fff; display: flex; flex-direction: column; justify-content: flex-end;
      padding: 28px;
    }
    .story-side { display: grid; gap: 16px; }
    .story-mini {
      background: var(--white); border: 1px solid var(--border); border-radius: 12px; padding: 18px;
    }
    .story-mini h3 { font-size: 18px; margin: 6px 0 8px; }
    .meta { color: var(--info); font-size: 13px; }
    .metrics {
      background: var(--white); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border);
      padding: 36px 0;
    }
    .metric-row {
      display: grid; grid-template-columns: repeat(4, 1fr); gap: 0;
    }
    .metric {
      padding: 8px 20px; text-align: left;
      border-right: 1px solid var(--border);
    }
    .metric:last-child { border-right: 0; }
    .metric b {
      display: block; font-size: 40px; color: var(--amber); font-variant-numeric: tabular-nums; line-height: 1.1;
    }
    .metric span { color: var(--info); font-size: 14px; }
    .compare-wrap {
      display: grid; grid-template-columns: 1fr 1fr; gap: 0;
      border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; background: var(--white);
    }
    .compare-col { padding: 28px; }
    .compare-col.lose { background: var(--khaki); }
    .compare-col.win { background: #E7F4F2; }
    .compare-col h3 { font-size: 20px; margin-bottom: 16px; }
    .cmp-row {
      display: grid; grid-template-columns: 92px 1fr; gap: 10px;
      padding: 12px 0; border-bottom: 1px solid var(--border); font-size: 15px;
    }
    .cmp-row dt { color: var(--info); }
    .cmp-row.hit dd { color: var(--teal-deep); font-weight: 700; }
    .compare-cta {
      grid-column: 1 / -1; display: flex; justify-content: space-between; align-items: center; gap: 16px;
      padding: 18px 28px; background: var(--graphite); color: var(--dark-text);
    }
    .reviews-track {
      display: grid; grid-auto-flow: column; grid-auto-columns: minmax(280px, 1fr);
      gap: 16px; overflow-x: auto; scroll-snap-type: x mandatory; padding-bottom: 8px;
    }
    .review {
      scroll-snap-align: start;
      background: var(--white); border: 1px solid var(--border); border-radius: 12px;
      padding: 22px; min-height: 210px; position: relative;
    }
    .review::before {
      content: "“"; position: absolute; right: 16px; top: 0;
      font-size: 64px; color: var(--khaki-2); line-height: 1;
    }
    .review h3 { font-size: 16px; margin-bottom: 8px; }
    .news-grid {
      display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px;
    }
    .news-card {
      background: var(--white); border: 1px solid var(--border); border-radius: 12px; overflow: hidden;
    }
    .news-card img { width: 100%; height: 150px; object-fit: cover; }
    .news-card .body { padding: 16px; }
    .news-card time { color: var(--info); font-size: 12px; }
    .news-card h3 { font-size: 17px; margin: 8px 0; }
    .news-card p { color: var(--info); font-size: 14px; }
    .more-link { margin-top: 18px; display: inline-flex; }
    .faq-list { display: grid; gap: 10px; }
    .faq-item {
      background: var(--white); border: 1px solid var(--border); border-radius: 12px; overflow: hidden;
    }
    .faq-item.is-open { border-color: var(--teal); box-shadow: inset 3px 0 0 var(--teal); }
    .faq-q {
      width: 100%; text-align: left; min-height: 56px; padding: 14px 18px;
      font-weight: 650; display: flex; justify-content: space-between; align-items: center; gap: 12px;
    }
    .faq-a {
      display: none; padding: 0 18px 18px; color: var(--info);
    }
    .faq-item.is-open .faq-a { display: block; }
    .faq-a p { margin-bottom: 8px; }
    .assure-row {
      display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px;
    }
    .assure {
      background: var(--white); border: 1px solid var(--border); border-radius: 12px; padding: 18px;
    }
    .assure h3 { font-size: 17px; margin: 8px 0; }
    .assure p { color: var(--info); font-size: 14px; }
    .ico {
      width: 36px; height: 36px; border-radius: 10px; background: var(--teal-soft); color: var(--teal);
      display: grid; place-items: center;
    }
    .trial {
      background: linear-gradient(180deg, #E8F3F1 0%, var(--khaki) 100%);
      padding: 84px 0 110px;
    }
    .trial-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 32px; align-items: start; }
    .value-list li {
      display: flex; gap: 10px; padding: 12px 0; border-bottom: 1px solid var(--border);
    }
    .form-box {
      background: var(--white); border: 1px solid var(--border); border-radius: 16px;
      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; }
    label { font-size: 13px; font-weight: 650; }
    input, select {
      min-height: 44px; border: 1px solid var(--border); border-radius: 10px;
      padding: 0 12px; background: var(--khaki); color: var(--graphite);
    }
    input:focus, select:focus { outline: 2px solid var(--teal); background: #fff; }
    .field.is-error input, .field.is-error select { border-color: var(--amber); }
    .err { color: var(--amber); font-size: 12px; display: none; }
    .field.is-error .err { display: block; }
    .form-note { color: var(--info); font-size: 13px; margin-top: 10px; }
    .form-success {
      display: none; padding: 18px; border-radius: 12px; background: var(--teal-soft); color: var(--teal-deep);
      font-weight: 650; margin-bottom: 12px;
    }
    .form-success.is-on { display: block; }
    .sticky-cta {
      position: fixed; left: 0; right: 0; bottom: 0; z-index: var(--z-sticky);
      background: var(--graphite); color: var(--dark-text);
      transform: translateY(110%);
      transition: transform .25s ease;
      padding: 10px 0 calc(10px + env(safe-area-inset-bottom));
      border-top: 1px solid #2A2623;
    }
    .sticky-cta.is-show { transform: translateY(0); }
    .sticky-inner {
      display: flex; align-items: center; justify-content: space-between; gap: 16px;
    }
    .sticky-cta.is-hide { transform: translateY(110%); }
    .site-footer {
      background: #1A1714; color: #B7C7C3; padding: 56px 0 28px;
    }
    .foot-grid {
      display: grid; grid-template-columns: 1.2fr .9fr 1.1fr .9fr; gap: 28px;
      padding-bottom: 28px; border-bottom: 1px solid #2E2925;
    }
    .site-footer h3 { color: #fff; font-size: 16px; margin-bottom: 12px; }
    .site-footer a { color: #D7ECE8; }
    .site-footer a:hover { color: var(--highlight); }
    .foot-logo { color: #fff; font-weight: 700; font-size: 18px; display: inline-block; margin-bottom: 10px; }
    .foot-nav a { display: block; min-height: 34px; }
    .copy { padding-top: 18px; font-size: 13px; color: #8A9692; display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
    .deco-line {
      height: 40px; opacity: .12;
      background: radial-gradient(circle at 20% 50%, #D7ECE8 0 1px, transparent 1.5px);
      background-size: 18px 18px; margin-top: 18px;
    }
    @media (max-width: 1280px) {
      :root { --fs-h1: 42px; --fs-h2: 28px; }
    }
    @media (max-width: 1024px) {
      .utility-inner { grid-template-columns: 1fr; }
      .utility-bar { height: auto; }
      .utility-inner {
        overflow-x: auto; display: flex; gap: 18px; height: 40px;
        scrollbar-width: none;
      }
      .utility-inner::-webkit-scrollbar { display: none; }
      .utility-left, .utility-mid, .utility-right { flex: 0 0 auto; }
      .nav-list, .nav-cta { display: none; }
      .nav-icons { display: flex; }
      .product-grid, .scene-layout, .cases-grid, .stories-grid, .trial-grid, .chip-groups {
        grid-template-columns: 1fr;
      }
      .bento { grid-template-columns: 1fr 1fr; }
      .bento-card:nth-child(n) { grid-column: auto; grid-row: auto; }
      .bento-card:nth-child(1) { grid-column: 1 / 3; }
      .modules { grid-template-columns: 1fr 1fr; }
      .module-card:first-child { grid-column: 1 / -1; }
      .news-grid { grid-template-columns: 1fr 1fr; }
      .foot-grid { grid-template-columns: 1fr 1fr; }
      .kanban { grid-template-columns: repeat(3, 1fr); }
    }
    @media (max-width: 768px) {
      :root { --fs-h1: 32px; --fs-h2: 26px; --header-main: 60px; }
      .sec { padding: 64px 0; }
      .hero, .hero-content { min-height: 640px; }
      .hero-content { padding: 36px 0 120px; }
      .hero-actions { flex-direction: column; align-items: stretch; }
      .hero-actions .btn { width: 100%; }
      .trust-row { display: grid; grid-template-columns: 1fr 1fr; }
      .steps { grid-template-columns: 1fr; }
      .steps::before { display: none; }
      .bento, .modules, .metric-row, .assure-row, .news-grid { grid-template-columns: 1fr; }
      .bento-card:nth-child(1) { grid-column: auto; }
      .compare-wrap { grid-template-columns: 1fr; }
      .compare-cta { flex-direction: column; align-items: flex-start; }
      .form-grid { grid-template-columns: 1fr; }
      .case-card { grid-template-columns: 1fr; }
      .case-body { padding: 16px; }
      .scene-tabs { flex-direction: row; overflow-x: auto; }
      .scene-tab { min-width: 200px; }
      .kanban { grid-template-columns: 1fr 1fr; }
      .hero-dots { right: 16px; bottom: 118px; }
      .hero-pause { right: 16px; bottom: 142px; }
      .copy { flex-direction: column; }
      .sticky-inner { gap: 8px; }
      .sticky-msg { display: none; }
      .sticky-inner .btn { flex: 1; }
    }
    @media (max-width: 520px) {
      .container { width: calc(100% - 28px); }
      :root { --fs-h1: 28px; --fs-h2: 24px; --fs-h3: 18px; }
      .logo { font-size: 14px; max-width: 58vw; }
      .trust-row { grid-template-columns: 1fr; }
      .metric b { font-size: 32px; }
      .product-pic img, .story-main img { height: 260px; min-height: 260px; }
      .kanban { grid-template-columns: 1fr; }
      .hero, .hero-content { min-height: 720px; aspect-ratio: auto; }
    }
    @media (prefers-reduced-motion: reduce) {
      html { scroll-behavior: auto; }
      * { transition: none !important; animation: none !important; }
    }