/* roulang page: index */
:root {
      --amber: #D86A1E;
      --amber-dark: #c05e1a;
      --amber-ink: #8a3d0c;
      --teal: #2F6F78;
      --teal-dark: #24565d;
      --bg: #F3EFE6;
      --bg-alt: #E7E1D4;
      --paper: #F7F3EA;
      --char: #1C2228;
      --char-2: #262e36;
      --ink: #1A1E22;
      --muted: #5C6570;
      --line: #cfc6b6;
      --line-dark: #3a434c;
      --radius: 6px;
      --shadow: 2px 3px 0 rgba(28, 34, 40, 0.14);
      --shadow-hard: 0 1px 0 rgba(28, 34, 40, 0.2);
      --container: 1200px;
      --section: 88px;
      --nav-h: 66px;
      --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; }
    html, body { margin: 0; padding: 0; max-width: 100%; overflow-x: hidden; }
    body {
      font-family: var(--font);
      font-size: 16px;
      line-height: 1.78;
      color: var(--ink);
      background: var(--bg);
      letter-spacing: 0;
    }
    body.nav-lock { overflow: hidden; height: 100dvh; }
    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(--amber); }
    a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
      outline: 2px solid var(--teal);
      outline-offset: 2px;
    }
    button, input, select, textarea { font-family: inherit; }
    button { cursor: pointer; }
    h1, h2, h3, h4 { margin: 0; line-height: 1.28; color: var(--ink); font-weight: 700; }
    h1 { font-size: clamp(28px, 4.2vw, 50px); }
    h2 { font-size: clamp(24px, 3vw, 32px); }
    h3 { font-size: clamp(18px, 2vw, 21px); }
    p { margin: 0 0 1.05em; }
    p:last-child { margin-bottom: 0; }
    ul { margin: 0; padding: 0; list-style: none; }
    table { border-collapse: collapse; width: 100%; }
    .num { font-variant-numeric: tabular-nums; font-feature-settings: "tnum" 1; }
    .container { width: min(100% - 32px, var(--container)); margin: 0 auto; }
    .skip {
      position: absolute; left: -999px; top: 0;
    }
    .skip:focus { left: 12px; top: 12px; z-index: 80; background: var(--paper); padding: 8px 12px; }

    /* Header / Nav */
    .site-header { position: relative; z-index: 40; }
    .toolbar {
      background: var(--char);
      color: var(--paper);
      font-size: 12.5px;
      line-height: 1.4;
    }
    .toolbar-inner {
      display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between;
      gap: 8px 18px; min-height: 36px; padding: 6px 0;
    }
    .toolbar a { color: var(--paper); }
    .toolbar a:hover { color: var(--amber); }
    .toolbar-left, .toolbar-right { display: flex; flex-wrap: wrap; gap: 8px 18px; align-items: center; }
    .toolbar-item { display: inline-flex; align-items: center; gap: 6px; color: #d9d3c6; }
    .toolbar-item svg { flex: 0 0 auto; }
    .toolbar-hint { color: #f0c9a0; }
    .nav-main {
      background: var(--bg);
      border-bottom: 1px solid var(--line);
      position: sticky; top: 0; z-index: 45;
    }
    .nav-inner {
      display: flex; align-items: center; gap: 16px; min-height: var(--nav-h);
    }
    .logo {
      display: flex; align-items: center; gap: 10px; color: var(--ink); flex: 0 0 auto;
      min-height: 44px;
    }
    .logo:hover { color: var(--ink); opacity: .86; }
    .logo-mark {
      width: 36px; height: 36px; border: 1px solid var(--char);
      background: var(--char); display: grid; place-items: center; border-radius: 4px;
    }
    .logo-text { display: flex; flex-direction: column; line-height: 1.15; }
    .logo-text strong { font-size: 16px; letter-spacing: 0.02em; }
    .logo-text span { font-size: 11px; color: var(--muted); font-weight: 500; }
    .nav-links {
      display: flex; align-items: center; justify-content: center; gap: 2px; flex: 1;
    }
    .nav-links a {
      color: var(--ink); font-size: 14px; padding: 10px 9px; min-height: 44px;
      display: inline-flex; align-items: center; position: relative; white-space: nowrap;
    }
    .nav-links a::after {
      content: ""; position: absolute; left: 9px; right: 9px; bottom: 8px; height: 2px;
      background: var(--amber); transform: scaleX(0); transform-origin: left; transition: transform .2s ease;
    }
    .nav-links a:hover, .nav-links a.is-active { color: var(--amber-ink); }
    .nav-links a:hover::after, .nav-links a.is-active::after { transform: scaleX(1); }
    .nav-cta { margin-left: auto; display: flex; align-items: center; gap: 10px; }
    .menu-toggle {
      display: none; width: 44px; height: 44px; border: 1px solid var(--line);
      background: var(--paper); border-radius: 4px; padding: 0; position: relative;
    }
    .menu-toggle span, .menu-toggle::before, .menu-toggle::after {
      content: ""; display: block; width: 18px; height: 2px; background: var(--ink);
      position: absolute; left: 12px; transition: .2s ease;
    }
    .menu-toggle span { top: 21px; }
    .menu-toggle::before { top: 14px; }
    .menu-toggle::after { top: 28px; }
    .menu-toggle.is-open span { opacity: 0; }
    .menu-toggle.is-open::before { transform: translateY(7px) rotate(45deg); }
    .menu-toggle.is-open::after { transform: translateY(-7px) rotate(-45deg); }

    .btn {
      display: inline-flex; align-items: center; justify-content: center; gap: 8px;
      min-height: 44px; padding: 0 18px; border-radius: 4px; border: 1px solid transparent;
      font-size: 14px; font-weight: 650; letter-spacing: .02em; transition: .18s ease;
      text-decoration: none; cursor: pointer;
    }
    .btn-primary {
      background: var(--amber); color: #fff; border-color: var(--amber);
      box-shadow: var(--shadow-hard);
    }
    .btn-primary:hover {
      background: var(--amber-dark); color: #fff; border-color: var(--amber-dark);
      box-shadow: inset 0 0 0 2px rgba(255,255,255,.28);
    }
    .btn-primary:active { transform: translateY(1px); }
    .btn-ghost {
      background: transparent; color: var(--paper); border-color: rgba(247,243,234,.55);
    }
    .btn-ghost:hover {
      color: #fff; border-color: #fff;
      box-shadow: inset 0 0 0 2px rgba(255,255,255,.2);
    }
    .btn-line {
      background: transparent; color: var(--teal); border-color: var(--teal);
    }
    .btn-line:hover {
      background: var(--teal); color: #fff;
      box-shadow: inset 0 0 0 2px rgba(255,255,255,.25);
    }
    .btn-dark {
      background: var(--char); color: var(--paper); border-color: var(--char);
    }
    .btn-dark:hover {
      background: #11161b; color: #fff;
      box-shadow: inset 0 0 0 2px rgba(247,243,234,.22);
    }
    .btn-block { width: 100%; }

    .badge {
      display: inline-flex; align-items: center; gap: 6px; min-height: 28px;
      padding: 0 10px; border: 1px solid var(--line); border-radius: 4px;
      background: var(--paper); color: var(--muted); font-size: 12px; font-weight: 600;
    }
    .badge-amber { border-color: var(--amber); color: var(--amber-ink); background: #f8e6d4; }
    .badge-teal { border-color: var(--teal); color: var(--teal-dark); background: #dce8e9; }

    /* Hero */
    .hero { position: relative; background: var(--char); color: var(--paper); min-height: 640px; }
    .slides { position: relative; min-height: 640px; }
    .slide {
      position: absolute; inset: 0; opacity: 0; visibility: hidden;
      transition: opacity .45s ease, visibility .45s ease;
    }
    .slide.is-active { opacity: 1; visibility: visible; position: relative; }
    .slide img {
      width: 100%; height: 640px; object-fit: cover; filter: saturate(.86) contrast(1.05);
    }
    .hero-mask {
      position: absolute; inset: 0;
      background: linear-gradient(90deg, rgba(28,34,40,.82) 0%, rgba(28,34,40,.55) 48%, rgba(28,34,40,.28) 100%);
    }
    .hero-inner {
      position: absolute; inset: 0; display: flex; align-items: center;
      padding: 48px 0 72px;
    }
    .hero-frame {
      max-width: 680px; border: 1px solid rgba(247,243,234,.32);
      padding: 28px 30px 26px; background: rgba(28,34,40,.18);
      box-shadow: 6px 0 0 0 rgba(216,106,30,.85);
    }
    .hero-kicker {
      display: inline-flex; align-items: center; gap: 8px; color: #f0c9a0;
      font-size: 13px; font-weight: 650; margin-bottom: 12px; letter-spacing: .04em;
    }
    .hero-kicker::before { content: ""; width: 18px; height: 2px; background: var(--amber); }
    .hero h1, .hero .hero-title {
      color: var(--paper); margin-bottom: 14px; font-size: clamp(28px, 4.2vw, 50px); font-weight: 750;
    }
    .hero-lead { color: #e8e2d6; font-size: 15.5px; line-height: 1.8; margin-bottom: 16px; max-width: 62ch; }
    .sell-list { display: grid; gap: 8px; margin: 0 0 20px; }
    .sell-list li {
      display: flex; gap: 10px; align-items: flex-start; color: var(--paper); font-size: 14.5px;
    }
    .sell-list i {
      width: 16px; height: 16px; margin-top: 5px; border: 1px solid var(--amber); flex: 0 0 auto;
      position: relative; border-radius: 1px;
    }
    .sell-list i::after {
      content: ""; position: absolute; left: 3px; top: 6px; width: 8px; height: 3px;
      border-left: 2px solid var(--amber); border-bottom: 2px solid var(--amber); transform: rotate(-45deg);
    }
    .hero-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 16px; }
    .trust-bar {
      display: flex; flex-wrap: wrap; gap: 8px 14px; padding-top: 12px;
      border-top: 1px solid rgba(247,243,234,.18); color: #d5cfc2; font-size: 12.5px;
    }
    .trust-bar span { display: inline-flex; align-items: center; gap: 6px; }
    .trust-bar span::before { content: ""; width: 6px; height: 6px; background: var(--amber); }
    .hero-controls {
      position: absolute; left: 0; right: 0; bottom: 18px; z-index: 3;
    }
    .hero-controls .container { display: flex; align-items: center; gap: 10px; }
    .ctrl-btn, .dot {
      width: 44px; height: 44px; border: 1px solid rgba(247,243,234,.35);
      background: rgba(28,34,40,.35); color: var(--paper); border-radius: 4px;
      display: inline-flex; align-items: center; justify-content: center;
    }
    .ctrl-btn:hover, .dot:hover { border-color: var(--amber); color: #fff; }
    .ctrl-btn.is-paused { border-color: var(--amber); }
    .dots { display: flex; gap: 8px; margin-left: 8px; }
    .dot { width: 12px; height: 12px; min-width: 12px; padding: 0; border-radius: 2px; }
    .dot.is-on { background: var(--amber); border-color: var(--amber); }

    /* Sections */
    main { background: var(--bg); }
    .section { padding: var(--section) 0; position: relative; }
    .section-alt { background: var(--bg-alt); }
    .section-dark { background: var(--char); color: var(--paper); }
    .section-dark h2, .section-dark h3 { color: var(--paper); }
    .sec-head { max-width: 760px; margin-bottom: 36px; }
    .sec-head.center { margin-left: auto; margin-right: auto; text-align: left; }
    .eyebrow {
      display: inline-flex; align-items: center; gap: 8px; color: var(--teal);
      font-size: 13px; font-weight: 700; margin-bottom: 10px; letter-spacing: .06em;
    }
    .section-dark .eyebrow { color: #f0c9a0; }
    .sec-head p { color: var(--muted); font-size: 15.5px; line-height: 1.85; }
    .section-dark .sec-head p { color: #cfc8ba; }
    .split { display: grid; grid-template-columns: 1.05fr .95fr; gap: 48px; align-items: center; }
    .media {
      position: relative; border: 1px solid var(--line); border-radius: var(--radius);
      overflow: hidden; box-shadow: var(--shadow); background: var(--char);
    }
    .media img { width: 100%; height: 420px; object-fit: cover; }
    .media::after {
      content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 8px;
      background: repeating-linear-gradient(-45deg, var(--amber) 0 8px, var(--char) 8px 16px);
    }
    .parting {
      position: absolute; inset: 18px auto 18px 18px; width: 1px;
      background: repeating-linear-gradient(to bottom, rgba(216,106,30,.7) 0 6px, transparent 6px 12px);
      pointer-events: none;
    }

    /* Pain */
    .pain-grid { display: grid; grid-template-columns: 280px 1fr; gap: 28px; }
    .pain-index {
      font-size: 13px; color: var(--amber-ink); font-weight: 700; letter-spacing: .08em;
    }
    .pain-list { display: grid; gap: 0; border-top: 1px solid var(--line); }
    .pain-item {
      display: grid; grid-template-columns: 72px 1fr 220px; gap: 16px; align-items: start;
      padding: 18px 0; border-bottom: 1px solid var(--line);
    }
    .pain-item .num {
      font-size: 22px; font-weight: 750; color: var(--amber);
    }
    .pain-item h3 { margin-bottom: 6px; }
    .pain-item p { color: var(--muted); font-size: 15px; }
    .pain-tag { font-size: 13px; color: var(--teal-dark); font-weight: 650; padding-top: 4px; }

    /* Spec table */
    .spec-table { margin: 18px 0 20px; font-size: 14.5px; }
    .spec-table th, .spec-table td {
      text-align: left; padding: 10px 12px; border: 1px solid var(--line); background: var(--paper);
    }
    .spec-table th { width: 34%; background: #efe8d8; color: var(--ink); font-weight: 700; }
    .chips { display: flex; flex-wrap: wrap; gap: 8px; margin: 8px 0 18px; }

    /* Function cards */
    .fn-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
    .card {
      background: var(--paper); border: 1px solid #b9b1a2; border-radius: var(--radius);
      padding: 22px; box-shadow: var(--shadow); transition: .18s ease;
    }
    .card:hover { border-width: 2px; border-color: var(--amber); transform: translateY(-3px); padding: 21px; }
    .fn-ico {
      width: 44px; height: 44px; display: grid; place-items: center;
      border: 1px solid var(--teal); color: var(--teal); border-radius: 4px; margin-bottom: 14px;
    }
    .card h3 { margin-bottom: 8px; }
    .card p { color: var(--muted); font-size: 14.5px; line-height: 1.75; }
    .card-link {
      display: inline-flex; align-items: center; gap: 6px; margin-top: 14px; min-height: 44px;
      color: var(--teal); font-weight: 700; font-size: 14px;
    }
    .card-link:hover { color: var(--amber); }

    /* Products */
    .product-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
    .product-card {
      background: var(--paper); border: 1px solid #b9b1a2; border-radius: var(--radius);
      overflow: hidden; box-shadow: var(--shadow); display: flex; flex-direction: column;
      transition: .18s ease;
    }
    .product-card:hover { border-color: var(--amber); transform: translateY(-3px); border-width: 2px; }
    .product-card img { width: 100%; height: 210px; object-fit: cover; }
    .product-body { padding: 20px 20px 22px; display: flex; flex-direction: column; gap: 10px; flex: 1; }
    .param-list { display: grid; gap: 6px; font-size: 14px; color: var(--ink); }
    .param-list li { display: flex; justify-content: space-between; gap: 12px; border-bottom: 1px dashed var(--line); padding-bottom: 6px; }
    .param-list span { color: var(--muted); }
    .fit { font-size: 14px; color: var(--muted); }

    /* Scenes */
    .scene-board { display: grid; grid-template-columns: 280px 1fr; gap: 22px; align-items: stretch; }
    .scene-chips { display: flex; flex-direction: column; gap: 8px; }
    .scene-chip {
      text-align: left; min-height: 52px; padding: 10px 14px; border: 1px solid var(--line);
      background: var(--paper); border-radius: 4px; color: var(--ink); font-weight: 650; font-size: 14.5px;
    }
    .scene-chip small { display: block; color: var(--muted); font-weight: 500; font-size: 12.5px; margin-top: 2px; }
    .scene-chip.is-on, .scene-chip:hover { border-color: var(--amber); box-shadow: inset 3px 0 0 var(--amber); }
    .scene-stage { position: relative; border: 1px solid var(--line); min-height: 420px; overflow: hidden; border-radius: var(--radius); }
    .scene-stage img { width: 100%; height: 460px; object-fit: cover; }
    .scene-cap {
      position: absolute; left: 16px; right: 16px; bottom: 16px; background: rgba(28,34,40,.82);
      color: var(--paper); padding: 14px 16px; border: 1px solid rgba(247,243,234,.2);
    }
    .scene-cap strong { display: block; margin-bottom: 4px; }

    /* Demo */
    .demo-stage { display: grid; grid-template-columns: 1.4fr .8fr .9fr; gap: 12px; }
    .demo-frame { position: relative; overflow: hidden; border: 1px solid var(--line); border-radius: 4px; background: var(--char); }
    .demo-frame img { width: 100%; height: 280px; object-fit: cover; }
    .demo-label {
      position: absolute; left: 0; right: 0; bottom: 0; padding: 10px 12px;
      background: linear-gradient(transparent, rgba(28,34,40,.88)); color: var(--paper); font-size: 13.5px;
    }
    .steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin-top: 18px; }
    .step {
      background: var(--paper); border: 1px solid var(--line); padding: 14px 16px; border-radius: 4px;
    }
    .step b { display: block; color: var(--amber); font-size: 12px; margin-bottom: 4px; letter-spacing: .08em; }

    /* Dark cases */
    .case-grid { display: grid; grid-template-columns: 1.35fr .65fr; gap: 36px; align-items: start; }
    .quote {
      font-size: clamp(22px, 2.6vw, 30px); line-height: 1.4; font-weight: 700; margin-bottom: 22px;
      border-left: 3px solid var(--amber); padding-left: 16px;
    }
    .case-points { display: grid; gap: 16px; }
    .case-points article {
      background: var(--char-2); border: 1px solid var(--line-dark); padding: 16px 18px; border-radius: 4px;
    }
    .case-points h3 { font-size: 18px; margin-bottom: 8px; }
    .case-points p { color: #cfc8ba; font-size: 14.5px; }
    .result-bar { display: grid; gap: 14px; }
    .result {
      border: 1px solid var(--line-dark); padding: 16px 18px; background: #161b20; border-radius: 4px;
    }
    .result .num { font-size: 32px; color: var(--amber); font-weight: 750; display: block; line-height: 1.1; }
    .result span { color: #cfc8ba; font-size: 13px; }

    /* Stories */
    .story-grid { display: grid; grid-template-columns: 1.35fr 1fr; grid-template-rows: auto auto; gap: 16px; }
    .story { background: var(--paper); border: 1px solid #b9b1a2; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); }
    .story-lg { grid-row: 1 / 3; }
    .story img { width: 100%; height: 220px; object-fit: cover; }
    .story-lg img { height: 280px; }
    .story-body { padding: 18px 20px 20px; }
    .meta-3 { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 10px; }
    .story p { color: var(--muted); font-size: 14.5px; }

    /* Price */
    .price-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; align-items: stretch; }
    .price-card {
      background: var(--paper); border: 1px solid #b9b1a2; border-radius: var(--radius);
      padding: 22px 22px 20px; display: flex; flex-direction: column; box-shadow: var(--shadow);
    }
    .price-card.featured { border: 2px solid var(--amber); transform: translateY(-6px); }
    .price-card .amount { font-size: 28px; font-weight: 750; color: var(--amber); margin: 8px 0 4px; }
    .price-card .amount small { font-size: 14px; color: var(--muted); font-weight: 600; }
    .inc { display: grid; gap: 8px; margin: 14px 0 18px; flex: 1; }
    .inc li { padding-left: 16px; position: relative; font-size: 14.5px; color: var(--ink); }
    .inc li::before { content: ""; width: 7px; height: 7px; background: var(--teal); position: absolute; left: 0; top: 8px; }

    /* Stats */
    .stats {
      background: var(--char); color: var(--paper); padding: 0; position: relative;
    }
    .stats::before {
      content: ""; display: block; height: 8px;
      background: repeating-linear-gradient(-45deg, var(--amber) 0 7px, var(--char) 7px 14px);
    }
    .stats-row {
      display: grid; grid-template-columns: repeat(5, 1fr); gap: 0;
    }
    .stat {
      padding: 28px 18px; border-right: 1px solid var(--line-dark); text-align: left;
    }
    .stat:last-child { border-right: 0; }
    .stat .num { font-size: 30px; font-weight: 750; color: var(--amber); display: block; line-height: 1.1; }
    .stat span { color: #cfc8ba; font-size: 13px; }

    /* Reviews staggered */
    .review-wall {
      display: grid; grid-template-columns: repeat(12, 1fr); gap: 14px;
    }
    .review {
      background: var(--paper); border: 1px solid #b9b1a2; border-radius: 4px; padding: 18px 18px 16px;
      box-shadow: var(--shadow);
    }
    .review:nth-child(1) { grid-column: 1 / 5; }
    .review:nth-child(2) { grid-column: 5 / 9; margin-top: 28px; }
    .review:nth-child(3) { grid-column: 9 / 13; }
    .review:nth-child(4) { grid-column: 2 / 6; }
    .review:nth-child(5) { grid-column: 6 / 10; margin-top: -12px; }
    .review:nth-child(6) { grid-column: 10 / 13; margin-top: 20px; }
    .review:nth-child(7) { grid-column: 3 / 8; }
    .review p { font-size: 14.5px; color: var(--ink); }
    .who { margin-top: 12px; font-size: 12.5px; color: var(--muted); display: flex; justify-content: space-between; gap: 8px; }

    /* Endorsement */
    .logo-rail {
      display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 22px;
    }
    .logo-rail span {
      border: 1px solid var(--line); background: var(--paper); min-height: 44px;
      display: inline-flex; align-items: center; padding: 0 14px; font-size: 13.5px; color: var(--ink);
      border-radius: 4px;
    }
    .quote-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
    .quote-card { background: var(--char); color: var(--paper); padding: 22px; border-radius: 4px; }
    .quote-card p { color: #e8e2d6; font-size: 15px; }
    .quote-card b { display: block; margin-top: 12px; color: #f0c9a0; font-size: 13px; }

    /* Aux */
    .aux-list { display: grid; gap: 10px; }
    .aux-item {
      display: grid; grid-template-columns: 120px 1fr auto; gap: 16px; align-items: center;
      background: var(--paper); border: 1px solid #b9b1a2; padding: 10px 12px; border-radius: 4px;
    }
    .aux-item img { width: 120px; height: 80px; object-fit: cover; border-radius: 3px; }
    .aux-item h3 { margin-bottom: 4px; }
    .aux-item p { color: var(--muted); font-size: 14px; }

    /* News */
    .news-layout { display: grid; grid-template-columns: 1.15fr .85fr; gap: 18px; }
    .news-feature { background: var(--paper); border: 1px solid #b9b1a2; border-radius: 4px; overflow: hidden; }
    .news-feature img { width: 100%; height: 240px; object-fit: cover; }
    .news-feature div { padding: 18px 20px 20px; }
    .news-stack { display: grid; gap: 10px; }
    .news-row {
      display: grid; grid-template-columns: 96px 1fr; gap: 12px; background: var(--paper);
      border: 1px solid #b9b1a2; padding: 10px; border-radius: 4px;
    }
    .news-row img { width: 96px; height: 72px; object-fit: cover; }
    .news-row h3 { font-size: 16px; margin-bottom: 4px; }
    .news-row p, .news-feature p { color: var(--muted); font-size: 14px; }
    .time { font-size: 12px; color: var(--teal); font-weight: 700; }

    /* Process */
    .timeline { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; position: relative; }
    .timeline::before {
      content: ""; position: absolute; left: 8%; right: 8%; top: 22px; height: 1px; background: var(--line);
    }
    .tl {
      background: var(--paper); border: 1px solid var(--line); padding: 18px 16px 16px; border-radius: 4px; position: relative;
    }
    .tl .n {
      width: 28px; height: 28px; background: var(--amber); color: #fff; display: grid; place-items: center;
      font-size: 13px; font-weight: 750; border-radius: 2px; margin-bottom: 10px; position: relative; z-index: 1;
    }
    .check-strip { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 22px; }
    .check-strip span {
      background: #efe8d8; border: 1px solid var(--line); padding: 8px 12px; font-size: 13px; border-radius: 4px;
    }
    .sla { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-top: 22px; }
    .sla article { border: 1px solid var(--line); background: var(--bg); padding: 16px; border-radius: 4px; }
    .sla h3 { font-size: 16px; margin-bottom: 6px; }

    /* FAQ */
    .faq-list { display: grid; gap: 8px; }
    .faq-item { border: 1px solid #b9b1a2; background: #d8d1c3; border-radius: 4px; overflow: hidden; }
    .faq-q {
      width: 100%; background: #d8d1c3; border: 0; text-align: left; min-height: 52px;
      padding: 12px 16px; display: flex; align-items: center; justify-content: space-between; gap: 12px;
      font-size: 16px; font-weight: 700; color: var(--ink);
    }
    .faq-plus {
      width: 22px; height: 22px; position: relative; flex: 0 0 auto;
    }
    .faq-plus::before, .faq-plus::after {
      content: ""; position: absolute; background: var(--char); left: 50%; top: 50%;
      transform: translate(-50%, -50%);
    }
    .faq-plus::before { width: 14px; height: 2px; }
    .faq-plus::after { width: 2px; height: 14px; }
    .faq-item.is-open .faq-plus::after { display: none; }
    .faq-a { display: none; background: var(--bg); padding: 0 16px 16px; color: var(--muted); font-size: 15px; }
    .faq-item.is-open .faq-a { display: block; }

    /* Inquiry */
    .inquiry {
      background:
        linear-gradient(90deg, rgba(28,34,40,.88), rgba(28,34,40,.72)),
        url("/assets/images/05bf62b9e6348f24.webp") center/cover no-repeat;
      color: var(--paper);
    }
    .inquiry h2 { color: var(--paper); }
    .inquiry-grid { display: grid; grid-template-columns: 1fr .72fr; gap: 28px; align-items: start; }
    .form {
      background: var(--paper); color: var(--ink); padding: 22px; border: 1px solid #b9b1a2; border-radius: 4px;
    }
    .form-row { margin-bottom: 12px; }
    .form label { display: block; font-size: 13px; font-weight: 700; margin-bottom: 6px; }
    .form input, .form select, .form textarea {
      width: 100%; min-height: 44px; border: 1px solid var(--line); background: #fff; border-radius: 4px;
      padding: 8px 12px; font-size: 15px; color: var(--ink);
    }
    .form textarea { min-height: 88px; resize: vertical; }
    .form .err { border-color: var(--amber); box-shadow: 0 0 0 1px var(--amber); }
    .error-text { color: var(--amber-ink); font-size: 12.5px; margin-top: 4px; display: none; }
    .error-text.show { display: block; }
    .form-ok {
      display: none; background: #efe8d8; border: 1px solid var(--amber); padding: 18px; color: var(--ink);
    }
    .form-ok.is-show { display: block; }
    .side-contact {
      border: 1px solid rgba(247,243,234,.22); padding: 20px; background: rgba(28,34,40,.35);
    }
    .side-contact a { color: #f0c9a0; }
    .side-contact li { margin: 0 0 10px; font-size: 14.5px; color: #e8e2d6; }
    .risk {
      margin-top: 16px; font-size: 12.5px; color: #cfc8ba; border-top: 1px solid rgba(247,243,234,.16); padding-top: 12px;
    }

    /* Footer */
    .site-footer { background: var(--char); color: #cfc8ba; padding: 48px 0 20px; font-size: 14px; }
    .foot-grid { display: grid; grid-template-columns: 1.3fr .9fr 1.1fr .9fr; gap: 28px; margin-bottom: 28px; }
    .site-footer h3 { color: var(--paper); font-size: 16px; margin-bottom: 12px; }
    .site-footer a { color: #d9d3c6; }
    .site-footer a:hover { color: var(--amber); }
    .foot-links { display: grid; gap: 8px; }
    .legal { border-top: 1px solid var(--line-dark); padding-top: 14px; display: flex; flex-wrap: wrap; gap: 8px 16px; justify-content: space-between; font-size: 12.5px; }
    .dot-grid {
      position: absolute; right: 8%; top: 18%; width: 90px; height: 90px; pointer-events: none; opacity: .18;
      background-image: radial-gradient(#2F6F78 1.2px, transparent 1.3px);
      background-size: 10px 10px;
    }

    @media (max-width: 1200px) {
      .container { width: min(100% - 32px, 1000px); }
      .nav-links a { padding: 10px 7px; font-size: 13.5px; }
      .stats-row { grid-template-columns: repeat(3, 1fr); }
      .stat:nth-child(3) { border-right: 0; }
    }
    @media (max-width: 992px) {
      :root { --section: 72px; }
      .nav-links { display: none; }
      .menu-toggle { display: inline-block; }
      .nav-links.is-open {
        display: flex; flex-direction: column; align-items: stretch; position: fixed;
        top: calc(36px + var(--nav-h)); left: 0; right: 0; bottom: 0;
        background: var(--bg); padding: 12px 16px 24px; gap: 4px; overflow: auto; z-index: 44;
      }
      .nav-links.is-open a { min-height: 48px; border-bottom: 1px solid var(--line); font-size: 16px; }
      .split, .pain-grid, .scene-board, .case-grid, .story-grid, .inquiry-grid, .news-layout, .foot-grid {
        grid-template-columns: 1fr;
      }
      .fn-grid, .product-grid, .price-grid, .demo-stage, .quote-2, .sla, .timeline { grid-template-columns: 1fr 1fr; }
      .story-lg { grid-row: auto; }
      .pain-item { grid-template-columns: 56px 1fr; }
      .pain-tag { grid-column: 2; }
      .aux-item { grid-template-columns: 100px 1fr; }
      .aux-item .btn { grid-column: 1 / -1; }
      .hero, .slides, .slide img { min-height: 0; }
      .slide img { height: 560px; }
      .review:nth-child(n) { grid-column: span 6; margin-top: 0; }
      .stats-row { grid-template-columns: 1fr 1fr; }
      .stat { border-bottom: 1px solid var(--line-dark); }
    }
    @media (max-width: 768px) {
      :root { --section: 56px; }
      .toolbar-item.mail, .toolbar-item.hint { display: none; }
      .hero-frame { padding: 20px 16px; box-shadow: 4px 0 0 var(--amber); }
      .slide img { height: 520px; }
      .fn-grid, .product-grid, .price-grid, .demo-stage, .quote-2, .sla, .timeline, .steps { grid-template-columns: 1fr; }
      .timeline::before { display: none; }
      .price-card.featured { transform: none; }
      .media img, .scene-stage img { height: 240px; }
      .demo-frame img { height: 200px; }
      .review-wall { grid-template-columns: 1fr; }
      .review:nth-child(n) { grid-column: auto; }
      .news-row { grid-template-columns: 84px 1fr; }
      .stats-row { grid-template-columns: 1fr 1fr; }
      .foot-grid { grid-template-columns: 1fr 1fr; }
      .hero-inner { align-items: flex-end; padding-bottom: 78px; }
    }
    @media (max-width: 520px) {
      .hero-actions { flex-direction: column; }
      .hero-actions .btn { width: 100%; }
      .stats-row, .foot-grid { grid-template-columns: 1fr; }
      .stat { border-right: 0; }
      .logo-text span { display: none; }
    }
    @media (max-width: 375px) {
      .container { width: calc(100% - 24px); }
      .hero-frame { padding: 16px 12px; }
      h1, .hero-title { font-size: 28px; }
    }
    @media (prefers-reduced-motion: reduce) {
      html { scroll-behavior: auto; }
      * { transition: none !important; }
    }

/* roulang page: index */
:root {
      --melt: #D86A1E;
      --melt-deep: #C45A12;
      --teal: #2F6F78;
      --teal-deep: #245860;
      --bg: #F3EFE6;
      --card: #E7E1D4;
      --steel: #1C2228;
      --ink: #1A1E22;
      --muted: #5C6570;
      --paper: #F7F3EA;
      --line: #C9C1B1;
      --white: #FFFaf3;
      --radius: 6px;
      --shadow: 2px 3px 0 rgba(28, 34, 40, .14);
      --space: 88px;
      --nav-h: 64px;
      --top-h: 36px;
      --max: 1200px;
      --mono: "DIN Alternate", "Roboto Mono", "Sarasa Mono SC", ui-monospace, monospace;
    }
    *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
    html { scroll-behavior: smooth; }
    html.menu-lock, body.menu-lock { overflow: hidden; height: 100%; }
    body {
      font-family: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      font-size: 16px;
      line-height: 1.78;
      color: var(--ink);
      background: var(--bg);
      letter-spacing: 0;
    }
    img { max-width: 100%; height: auto; display: block; }
    a { color: var(--teal); text-decoration: none; transition: color .2s, border-color .2s, background .2s; }
    a:hover { color: var(--melt); }
    button, input, select, textarea { font-family: inherit; font-size: 15px; }
    button { cursor: pointer; border: 0; background: none; }
    ul, ol { list-style: none; }
    table { border-collapse: collapse; width: 100%; }
    .container { width: min(100% - 40px, var(--max)); margin: 0 auto; }
    .num { font-variant-numeric: tabular-nums; font-family: var(--mono); }
    :focus-visible { outline: 2px solid var(--melt); outline-offset: 3px; }
    .skip {
      position: absolute; left: -999px; top: 0;
    }
    .skip:focus { left: 12px; top: 12px; z-index: 80; background: var(--paper); padding: 8px 12px; }

    .btn {
      display: inline-flex; align-items: center; justify-content: center; gap: 8px;
      min-height: 44px; padding: 0 20px; border-radius: var(--radius);
      font-weight: 650; letter-spacing: .02em; line-height: 1; border: 1px solid transparent;
      transition: background .2s, border-color .2s, transform .2s, box-shadow .2s, color .2s;
      box-shadow: var(--shadow);
    }
    .btn-primary { background: var(--melt); color: var(--paper); }
    .btn-primary:hover, .btn-primary:active {
      background: var(--melt-deep); color: var(--paper);
      box-shadow: inset 0 0 0 2px rgba(255, 244, 228, .45), var(--shadow);
    }
    .btn-ghost {
      background: transparent; color: var(--paper); border-color: rgba(247, 243, 234, .55);
      box-shadow: none;
    }
    .btn-ghost:hover { border-color: var(--paper); box-shadow: inset 0 0 0 2px rgba(247,243,234,.35); color: var(--paper); }
    .btn-line {
      background: transparent; color: var(--teal); border-color: var(--teal); box-shadow: none;
    }
    .btn-line:hover {
      color: var(--paper); background: var(--teal);
      box-shadow: inset 0 0 0 2px rgba(247,243,234,.35);
    }
    .btn-dark { background: var(--steel); color: var(--paper); }
    .btn-dark:hover { background: #10151a; color: var(--paper); box-shadow: inset 0 0 0 2px rgba(216,106,30,.7), var(--shadow); }

    .badge {
      display: inline-flex; align-items: center; gap: 6px;
      min-height: 32px; padding: 0 10px; border: 1px solid var(--line);
      background: var(--white); color: var(--ink); font-size: 12px; border-radius: 4px;
    }
    .badge i { width: 7px; height: 7px; background: var(--melt); display: inline-block; }

    .topbar {
      background: var(--steel); color: var(--paper); font-size: 12px; line-height: 1.4;
      min-height: var(--top-h);
    }
    .topbar .container {
      display: flex; justify-content: space-between; align-items: center; gap: 16px;
      min-height: var(--top-h); flex-wrap: wrap; padding-top: 6px; padding-bottom: 6px;
    }
    .topbar a { color: var(--paper); }
    .topbar a:hover { color: #f0c089; }
    .top-left, .top-right { display: flex; gap: 18px; flex-wrap: wrap; align-items: center; }
    .topbar .split-dot::before { content: ""; display: inline-block; width: 1px; height: 10px; background: #4a545c; margin-right: 18px; vertical-align: -1px; }

    .nav-wrap {
      background: var(--bg); border-bottom: 1px solid var(--line); position: sticky; top: 0; z-index: 50;
    }
    .nav-wrap.is-stuck { box-shadow: 0 2px 0 rgba(28,34,40,.12); }
    .navbar {
      display: flex; align-items: center; justify-content: space-between; gap: 20px;
      min-height: var(--nav-h);
    }
    .logo {
      display: flex; align-items: center; gap: 10px; color: var(--ink); font-weight: 750; font-size: 16px;
      min-height: 44px;
    }
    .logo:hover { color: var(--ink); }
    .logo-mark {
      width: 36px; height: 36px; border: 1px solid var(--steel); border-radius: 4px;
      display: grid; place-items: center; color: var(--melt); background: var(--white);
      position: relative;
    }
    .logo-mark::after {
      content: ""; position: absolute; inset: 4px auto 4px 50%; width: 1px; background: rgba(47,111,120,.35);
    }
    .nav-links { display: flex; align-items: center; gap: 4px; flex-wrap: wrap; }
    .nav-links a {
      color: var(--ink); font-size: 14px; padding: 10px 10px; min-height: 44px;
      display: inline-flex; align-items: center; border-bottom: 2px solid transparent;
    }
    .nav-links a:hover, .nav-links a.is-active { color: var(--melt); border-bottom-color: var(--melt); }
    .nav-cta { flex-shrink: 0; }
    .menu-toggle {
      display: none; width: 44px; height: 44px; border: 1px solid var(--line); border-radius: 4px;
      align-items: center; justify-content: center; flex-direction: column; gap: 5px; background: var(--white);
    }
    .menu-toggle span { display: block; width: 18px; height: 2px; background: var(--steel); }
    .menu-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
    .menu-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
    .menu-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
    .menu-toggle span { transition: transform .2s, opacity .2s; }

    .hero { position: relative; background: var(--steel); color: var(--paper); overflow: hidden; }
    .slides { position: relative; min-height: 640px; }
    .slide {
      position: absolute; inset: 0; opacity: 0; visibility: hidden; transition: opacity .5s ease;
    }
    .slide.is-active { opacity: 1; visibility: visible; z-index: 1; }
    .slide img { width: 100%; height: 100%; object-fit: cover; filter: saturate(.85) contrast(1.05); }
    .slide-mask {
      position: absolute; inset: 0;
      background: linear-gradient(90deg, rgba(28,34,40,.78) 0%, rgba(28,34,40,.52) 48%, rgba(28,34,40,.28) 100%);
    }
    .slide-copy {
      position: relative; z-index: 2; min-height: 640px; display: flex; flex-direction: column; justify-content: center;
      padding: 72px 0 96px; max-width: 720px;
    }
    .kicker {
      display: inline-flex; align-items: center; gap: 8px; font-size: 12px; letter-spacing: .12em;
      text-transform: none; color: #f0c089; margin-bottom: 14px;
    }
    .kicker::before { content: ""; width: 28px; height: 2px; background: var(--melt); }
    h1, .h1 {
      font-size: 48px; line-height: 1.18; font-weight: 750; margin-bottom: 18px; color: var(--paper);
      text-shadow: 0 1px 0 rgba(0,0,0,.25);
    }
    .lead { font-size: 16px; line-height: 1.8; color: #e6e0d4; margin-bottom: 22px; max-width: 62ch; }
    .sell-list { display: grid; gap: 8px; margin: 0 0 26px; }
    .sell-list li {
      display: flex; gap: 10px; align-items: flex-start; font-size: 15px; color: var(--paper);
    }
    .sell-list li::before {
      content: ""; width: 10px; height: 10px; margin-top: 8px; flex-shrink: 0;
      background: var(--melt); clip-path: polygon(0 0, 100% 0, 100% 70%, 70% 100%, 0 100%);
    }
    .hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
    .hero-frame {
      position: absolute; inset: 24px; border: 1px solid rgba(247,243,234,.18); pointer-events: none; z-index: 2;
    }
    .hero-controls {
      position: absolute; left: 0; right: 0; bottom: 18px; z-index: 3;
    }
    .hero-controls .container { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
    .dots { display: flex; gap: 8px; }
    .dots button, .ctrl-btn {
      width: 44px; height: 44px; border: 1px solid rgba(247,243,234,.3); color: var(--paper);
      display: grid; place-items: center; border-radius: 4px; background: rgba(28,34,40,.35);
    }
    .dots button { width: 12px; height: 12px; min-width: 12px; padding: 0; border-radius: 1px; }
    .dots button.is-on { background: var(--melt); border-color: var(--melt); width: 28px; }
    .ctrl-cluster { display: flex; gap: 8px; }
    .trust-bar {
      display: flex; flex-wrap: wrap; gap: 8px 18px; margin-top: 28px; padding-top: 16px;
      border-top: 1px solid rgba(247,243,234,.18); font-size: 13px; color: #d9d2c4;
    }
    .trust-bar b { color: var(--paper); font-weight: 650; font-variant-numeric: tabular-nums; }

    main section { padding: var(--space) 0; position: relative; }
    .sec-head { margin-bottom: 28px; max-width: 760px; }
    .sec-kicker { font-size: 12px; color: var(--teal); letter-spacing: .14em; margin-bottom: 8px; }
    h2 { font-size: 30px; line-height: 1.28; font-weight: 740; color: var(--ink); margin-bottom: 14px; }
    h3 { font-size: 20px; line-height: 1.35; font-weight: 700; }
    .sec-desc { color: var(--muted); font-size: 15px; line-height: 1.8; }
    .shoulder {
      position: absolute; left: 0; top: 0; width: 100%; height: 10px;
      background-image: repeating-linear-gradient(-45deg, rgba(216,106,30,.22) 0 6px, transparent 6px 12px);
      opacity: .55; pointer-events: none;
    }

    .pains { background: var(--card); }
    .pain-layout { display: grid; grid-template-columns: 1.15fr .85fr; gap: 36px; align-items: stretch; }
    .pain-item {
      display: grid; grid-template-columns: 52px 1fr; gap: 14px; padding: 18px 0;
      border-bottom: 1px solid var(--line);
    }
    .pain-item:last-child { border-bottom: 0; }
    .pain-no { font-family: var(--mono); font-size: 22px; color: var(--melt); font-weight: 700; }
    .pain-item p { color: var(--muted); font-size: 15px; margin-top: 6px; }
    .pain-photo { position: relative; min-height: 100%; overflow: hidden; border: 1px solid var(--steel); border-radius: 6px; }
    .pain-photo img { width: 100%; height: 100%; object-fit: cover; min-height: 420px; }
    .pain-photo span {
      position: absolute; left: 12px; bottom: 12px; background: var(--steel); color: var(--paper);
      font-size: 12px; padding: 6px 10px; border-radius: 4px;
    }

    .overview { background: var(--bg); }
    .split { display: grid; grid-template-columns: .92fr 1.08fr; gap: 40px; align-items: center; }
    .cover-frame {
      position: relative; border: 1px solid var(--steel); border-radius: 6px; overflow: hidden;
      box-shadow: var(--shadow); background: var(--steel);
    }
    .cover-frame img { width: 100%; height: 520px; object-fit: cover; }
    .cover-frame .cap {
      position: absolute; right: 0; bottom: 0; background: var(--melt); color: var(--paper);
      font-size: 12px; padding: 8px 12px;
    }
    .parting {
      pointer-events: none; position: absolute; inset: 0;
      background: linear-gradient(180deg, transparent 49%, rgba(247,243,234,.28) 49.5%, transparent 50%);
    }
    .badge-row { display: flex; flex-wrap: wrap; gap: 8px; margin: 16px 0 20px; }
    .param-table { background: var(--white); border: 1px solid var(--steel); border-radius: 6px; overflow: hidden; }
    .param-table th, .param-table td { padding: 10px 14px; text-align: left; font-size: 14px; border-bottom: 1px solid var(--line); }
    .param-table th { width: 28%; background: var(--card); font-weight: 650; }
    .param-table tr:last-child th, .param-table tr:last-child td { border-bottom: 0; }

    .functions { background: var(--white); }
    .cap-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
    .cap-card {
      background: var(--bg); border: 1px solid #d5cec0; border-radius: 6px; padding: 24px;
      box-shadow: 1px 2px 0 rgba(28,34,40,.08); transition: transform .2s, border-color .2s, box-shadow .2s;
    }
    .cap-card:hover { transform: translateY(-3px); border-color: var(--melt); border-width: 2px; padding: 23px; box-shadow: var(--shadow); }
    .icon-line { width: 44px; height: 44px; color: var(--teal); margin-bottom: 14px; }
    .cap-card h3 { font-size: 18px; margin-bottom: 10px; }
    .cap-card p { color: var(--muted); font-size: 14px; margin-bottom: 8px; line-height: 1.7; }
    .text-link {
      display: inline-flex; align-items: center; min-height: 44px; color: var(--teal); font-weight: 650; font-size: 14px;
    }
    .text-link::after { content: " →"; color: var(--melt); }

    .products { background: var(--bg); }
    .product-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
    .product-card {
      background: var(--white); border: 1px solid var(--steel); border-radius: 6px; overflow: hidden;
      display: flex; flex-direction: column; box-shadow: var(--shadow); transition: transform .2s, border-color .2s;
    }
    .product-card:hover { transform: translateY(-3px); border-color: var(--melt); }
    .product-card img { height: 220px; width: 100%; object-fit: cover; }
    .product-body { padding: 22px; display: flex; flex-direction: column; gap: 10px; flex: 1; }
    .spec { font-size: 13px; color: var(--ink); }
    .spec li { display: flex; justify-content: space-between; gap: 12px; padding: 6px 0; border-bottom: 1px dashed var(--line); }
    .spec span { color: var(--muted); }
    .use-tag { font-size: 13px; color: var(--teal-deep); background: #e4ecec; padding: 6px 8px; border-radius: 4px; }
    .product-body .btn { margin-top: auto; width: 100%; }

    .scenes { background: var(--card); }
    .scene-board { display: grid; grid-template-columns: 280px 1fr; gap: 20px; }
    .scene-chips { display: flex; flex-direction: column; gap: 8px; }
    .scene-chips button {
      min-height: 48px; text-align: left; padding: 10px 14px; border: 1px solid var(--line);
      background: var(--white); border-radius: 4px; color: var(--ink); font-weight: 650;
    }
    .scene-chips button.is-on, .scene-chips button:hover { background: var(--steel); color: var(--paper); border-color: var(--steel); }
    .scene-stage { position: relative; border: 1px solid var(--steel); border-radius: 6px; overflow: hidden; min-height: 420px; }
    .scene-stage img { width: 100%; height: 460px; object-fit: cover; }
    .scene-caption {
      position: absolute; left: 0; right: 0; bottom: 0; padding: 18px 20px;
      background: linear-gradient(transparent, rgba(28,34,40,.82)); color: var(--paper);
    }

    .demo { background: var(--bg); }
    .steps { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 18px; }
    .steps li {
      min-height: 36px; padding: 6px 12px; background: var(--steel); color: var(--paper);
      font-size: 13px; border-radius: 4px; display: inline-flex; align-items: center;
    }
    .demo-stage { display: grid; grid-template-columns: 1.2fr .9fr .9fr; gap: 12px; }
    .demo-strip { position: relative; overflow: hidden; border: 1px solid var(--steel); border-radius: 6px; min-height: 280px; }
    .demo-strip img { width: 100%; height: 320px; object-fit: cover; }
    .demo-strip b {
      position: absolute; left: 12px; top: 12px; background: var(--melt); color: var(--paper);
      font-size: 12px; padding: 6px 10px; border-radius: 4px; font-weight: 650;
    }
    .demo-strip p {
      position: absolute; left: 0; right: 0; bottom: 0; padding: 14px; color: var(--paper);
      background: linear-gradient(transparent, rgba(28,34,40,.78)); font-size: 14px;
    }

    .cases { background: var(--steel); color: var(--paper); }
    .cases h2, .cases .sec-desc { color: var(--paper); }
    .cases .sec-desc { color: #c9c3b6; }
    .case-grid { display: grid; grid-template-columns: 1.3fr .7fr; gap: 28px; }
    .quote {
      font-size: 26px; line-height: 1.4; font-weight: 700; margin-bottom: 22px;
      border-left: 3px solid var(--melt); padding-left: 16px;
    }
    .case-block { margin-bottom: 18px; padding-bottom: 18px; border-bottom: 1px solid #343c44; }
    .case-block h3 { font-size: 18px; margin-bottom: 8px; }
    .case-block p { color: #d4cec2; font-size: 15px; }
    .result-bar { display: grid; gap: 12px; }
    .result {
      background: #151a1f; border: 1px solid #3a444c; padding: 18px; border-radius: 6px;
    }
    .result b { display: block; font-size: 28px; color: var(--melt); font-variant-numeric: tabular-nums; font-family: var(--mono); }
    .result span { color: #c2bbb0; font-size: 13px; }

    .stories { background: var(--bg); }
    .story-layout { display: grid; grid-template-columns: 1.4fr .8fr; gap: 16px; }
    .story-main, .story-side article {
      background: var(--white); border: 1px solid var(--line); border-radius: 6px; overflow: hidden;
    }
    .story-main img { height: 280px; width: 100%; object-fit: cover; }
    .story-side img { height: 140px; width: 100%; object-fit: cover; }
    .story-body { padding: 20px; }
    .meta-3 { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
    .meta-3 span { font-size: 12px; background: var(--card); padding: 4px 8px; border-radius: 4px; color: var(--ink); }
    .story-side { display: grid; gap: 16px; }

    .plans { background: var(--card); }
    .plan-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
    .plan {
      background: var(--white); border: 1px solid var(--steel); border-radius: 6px; padding: 24px;
      display: flex; flex-direction: column; gap: 10px;
    }
    .plan.featured { background: var(--steel); color: var(--paper); border-color: var(--melt); }
    .plan.featured p, .plan.featured li { color: #d8d2c6; }
    .plan .price { font-size: 28px; font-weight: 750; font-variant-numeric: tabular-nums; font-family: var(--mono); color: var(--melt); }
    .plan ul { margin: 8px 0 16px; }
    .plan li { position: relative; padding-left: 16px; margin-bottom: 8px; font-size: 14px; }
    .plan li::before { content: ""; width: 7px; height: 7px; background: var(--melt); position: absolute; left: 0; top: 8px; }
    .plan .btn { width: 100%; margin-top: auto; }

    .stats {
      background: var(--steel); color: var(--paper); padding: 36px 0 !important;
    }
    .stats::before {
      content: ""; position: absolute; inset: 0 auto 0 0; width: 8px;
      background-image: repeating-linear-gradient(-45deg, var(--melt) 0 8px, #9a4a14 8px 16px);
    }
    .stat-row { display: grid; grid-template-columns: repeat(6, 1fr); gap: 12px; }
    .stat-item { text-align: left; padding: 8px 10px; border-left: 1px solid #3c464e; }
    .stat-item b { display: block; font-size: 28px; color: var(--melt); font-variant-numeric: tabular-nums; font-family: var(--mono); line-height: 1.2; }
    .stat-item span { font-size: 13px; color: #c9c3b6; }

    .reviews { background: var(--bg); }
    .review-wall {
      columns: 3; column-gap: 16px;
    }
    .review {
      break-inside: avoid; margin-bottom: 16px; background: var(--white);
      border: 1px solid var(--line); padding: 18px 18px 16px; border-radius: 6px;
    }
    .review:nth-child(odd) { transform: translateY(10px); }
    .review p { font-size: 14px; color: var(--ink); margin-bottom: 10px; }
    .review footer { font-size: 12px; color: var(--muted); display: flex; justify-content: space-between; gap: 8px; }

    .voice { background: var(--white); }
    .logo-wall {
      display: grid; grid-template-columns: repeat(6, 1fr); gap: 10px; margin-bottom: 22px;
    }
    .logo-wall span {
      min-height: 64px; display: grid; place-items: center; text-align: center;
      border: 1px solid var(--line); background: var(--bg); font-size: 13px; padding: 8px; border-radius: 4px;
    }
    .long-quotes { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
    .long-quotes article { background: var(--bg); border: 1px solid var(--line); padding: 22px; border-radius: 6px; }
    .long-quotes p { color: var(--muted); margin-top: 8px; }

    .aux { background: var(--card); }
    .aux-list { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
    .aux-item {
      display: grid; grid-template-columns: 120px 1fr auto; gap: 14px; align-items: center;
      background: var(--white); border: 1px solid var(--line); padding: 10px; border-radius: 6px; min-height: 88px;
    }
    .aux-item img { width: 120px; height: 72px; object-fit: cover; border-radius: 4px; }
    .aux-item p { font-size: 13px; color: var(--muted); }
    .aux-item .btn { min-width: 108px; }

    .news { background: var(--bg); }
    .news-grid { display: grid; grid-template-columns: 1.2fr 1fr 1fr 1fr; gap: 14px; }
    .news-card {
      background: var(--white); border: 1px solid var(--line); border-radius: 6px; overflow: hidden;
      display: flex; flex-direction: column;
    }
    .news-card:first-child { grid-row: span 1; }
    .news-card img { height: 160px; width: 100%; object-fit: cover; }
    .news-card:first-child img { height: 220px; }
    .news-card div { padding: 16px; }
    .news-card time { font-size: 12px; color: var(--teal); font-variant-numeric: tabular-nums; }
    .news-card h3 { font-size: 17px; margin: 6px 0 8px; }
    .news-card p { font-size: 14px; color: var(--muted); }
    .more-link { margin-top: 16px; display: inline-flex; min-height: 44px; align-items: center; font-weight: 650; }

    .faq { background: var(--white); }
    .faq-item { border: 1px solid var(--steel); margin-bottom: 8px; border-radius: 4px; overflow: hidden; background: var(--card); }
    .faq-item button {
      width: 100%; text-align: left; min-height: 52px; padding: 12px 48px 12px 16px; font-weight: 700;
      background: #d8d1c2; color: var(--ink); position: relative;
    }
    .faq-item button::after {
      content: "+"; position: absolute; right: 16px; top: 50%; transform: translateY(-50%);
      font-size: 20px; color: var(--melt); font-family: var(--mono);
    }
    .faq-item.is-open button::after { content: "−"; }
    .faq-item .panel { display: none; padding: 14px 16px 18px; background: var(--bg); color: var(--muted); font-size: 15px; }
    .faq-item.is-open .panel { display: block; }

    .sla {
      background: var(--card); padding: 28px 0 !important;
    }
    .sla-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
    .sla-item { background: var(--white); border: 1px solid var(--line); padding: 16px; border-radius: 6px; }
    .sla-item b { display: block; color: var(--teal); margin-bottom: 6px; }

    .inquiry { background: var(--steel); color: var(--paper); }
    .inquiry h2, .inquiry .sec-desc { color: var(--paper); }
    .inquiry .sec-desc { color: #cfc8bb; }
    .inquiry-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 28px; }
    .form {
      background: #151a1f; border: 1px solid #3a444c; padding: 22px; border-radius: 6px;
    }
    .form-row { margin-bottom: 12px; }
    label { display: block; font-size: 13px; margin-bottom: 6px; color: #ddd6c8; }
    input, select, textarea {
      width: 100%; min-height: 44px; border: 1px solid #4a545c; background: #1c2228; color: var(--paper);
      border-radius: 4px; padding: 8px 12px;
    }
    textarea { min-height: 90px; resize: vertical; }
    input.is-err, select.is-err, textarea.is-err { border-color: var(--melt); }
    .err { color: #f0c089; font-size: 12px; min-height: 16px; margin-top: 4px; }
    .form-success {
      display: none; padding: 28px 12px; text-align: left;
    }
    .form-success.is-show { display: block; }
    .form.is-done .grid-hide { display: none; }
    .side-contact { border: 1px solid #3a444c; padding: 22px; border-radius: 6px; background: #12171c; }
    .side-contact a { color: #f0c089; }
    .side-contact p { margin-bottom: 10px; color: #d4cec2; }
    .risk {
      margin-top: 18px; font-size: 13px; color: #b7b0a4; border-top: 1px solid #343c44; padding-top: 12px;
    }

    footer {
      background: #12171c; color: #c9c3b6; padding: 48px 0 24px; font-size: 14px;
    }
    .foot-grid { display: grid; grid-template-columns: 1.3fr 1fr 1.1fr 1fr; gap: 24px; margin-bottom: 28px; }
    .foot-brand strong { display: block; color: var(--paper); font-size: 18px; margin-bottom: 10px; }
    .foot-grid h3 { color: var(--paper); font-size: 15px; margin-bottom: 12px; }
    .foot-grid a { color: #c9c3b6; display: inline-flex; min-height: 32px; align-items: center; }
    .foot-grid a:hover { color: #f0c089; }
    .copy {
      border-top: 1px solid #2a3238; padding-top: 16px; display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap;
      font-size: 12px;
    }

    @media (max-width: 1200px) {
      h1, .h1 { font-size: 40px; }
      .stat-row { grid-template-columns: repeat(3, 1fr); }
      .news-grid { grid-template-columns: 1fr 1fr; }
      .logo-wall { grid-template-columns: repeat(3, 1fr); }
    }
    @media (max-width: 992px) {
      :root { --space: 72px; }
      .slides, .slide-copy { min-height: 580px; }
      .split, .pain-layout, .scene-board, .case-grid, .story-layout, .inquiry-grid { grid-template-columns: 1fr; }
      .cap-grid, .product-grid, .plan-grid, .demo-stage { grid-template-columns: 1fr 1fr; }
      .cover-frame img, .pain-photo img { height: 360px; min-height: 0; }
      .nav-links { display: none; }
      .menu-toggle { display: inline-flex; }
      .nav-links.is-open {
        display: flex; flex-direction: column; position: fixed; inset: calc(var(--top-h) + var(--nav-h)) 0 0 0;
        background: var(--bg); padding: 16px; z-index: 60; align-items: stretch; overflow: auto;
      }
      .nav-links.is-open a { min-height: 48px; border-bottom: 1px solid var(--line); font-size: 16px; }
      .review-wall { columns: 2; }
      .aux-item { grid-template-columns: 96px 1fr; }
      .aux-item .btn { grid-column: 1 / -1; }
    }
    @media (max-width: 768px) {
      :root { --space: 56px; }
      .container { width: min(100% - 28px, var(--max)); }
      h1, .h1 { font-size: 30px; }
      h2 { font-size: 24px; }
      .slides, .slide-copy { min-height: 540px; }
      .cap-grid, .product-grid, .plan-grid, .demo-stage, .stat-row, .sla-row, .long-quotes, .news-grid, .foot-grid, .aux-list {
        grid-template-columns: 1fr;
      }
      .top-right { display: none; }
      .review-wall { columns: 1; }
      .review:nth-child(odd) { transform: none; }
      .logo-wall { grid-template-columns: 1fr 1fr; }
      .hero-frame { display: none; }
      .scene-chips { flex-direction: row; overflow-x: auto; }
      .scene-chips button { white-space: nowrap; }
    }
    @media (max-width: 375px) {
      h1, .h1 { font-size: 28px; }
      .btn { width: 100%; }
      .hero-actions .btn { width: auto; flex: 1; }
      body { overflow-x: hidden; }
    }