/* roulang page: index */
:root {
      --c-primary: #0E8F8C;
      --c-primary-deep: #0B3A42;
      --c-primary-bright: #3EC7C0;
      --c-accent: #E6A23C;
      --c-accent-deep: #C9841F;
      --c-bg: #F3F5F7;
      --c-dark: #12161C;
      --c-dark-2: #1A222B;
      --c-card: #FFFFFF;
      --c-text: #1A1F26;
      --c-muted: #5C6770;
      --c-line: #D7DEE3;
      --c-soft: #E7F4F3;
      --c-amber-soft: #F8EDD8;
      --radius-card: 24px;
      --radius-btn: 12px;
      --radius-pill: 999px;
      --shadow: 0 14px 30px rgba(14, 143, 140, 0.10);
      --shadow-hover: 0 20px 38px rgba(14, 143, 140, 0.16);
      --shadow-dark: 0 18px 40px rgba(8, 18, 22, 0.28);
      --container: 1240px;
      --header-top: 42px;
      --header-main: 74px;
      --grad: linear-gradient(120deg, #0B3A42 0%, #0E8F8C 52%, #3EC7C0 100%);
      --grad-dark: linear-gradient(135deg, #12161C 0%, #0B3A42 58%, #0E8F8C 100%);
      --focus: 0 0 0 2px #F3F5F7, 0 0 0 4px #0E8F8C;
      --font: "Source Han Sans SC", "Noto Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "WenQuanYi Micro Hei", sans-serif;
      --space-sec: 108px;
    }
    *, *::before, *::after { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    html, body { margin: 0; padding: 0; overflow-x: hidden; }
    body {
      font-family: var(--font);
      color: var(--c-text);
      background: var(--c-bg);
      line-height: 1.78;
      font-size: 16px;
      min-width: 320px;
    }
    img { max-width: 100%; height: auto; display: block; }
    a { color: var(--c-primary); text-decoration: none; transition: color .2s ease, opacity .2s ease; }
    a:hover { color: var(--c-primary-deep); }
    button, input, textarea, select { font-family: inherit; }
    button { cursor: pointer; border: 0; background: none; }
    h1, h2, h3, h4, p { margin: 0; }
    ul, ol { margin: 0; padding: 0; list-style: none; }
    table { border-collapse: collapse; width: 100%; }
    :focus-visible { outline: 2px solid var(--c-primary); outline-offset: 2px; }
    .container { width: min(100% - 40px, var(--container)); margin: 0 auto; }
    .skip {
      position: absolute; left: -999px; top: 0;
      background: var(--c-dark); color: #fff; padding: 10px 16px; z-index: 80;
    }
    .skip:focus { left: 12px; top: 12px; }

    .badge {
      display: inline-flex; align-items: center; gap: 6px;
      border-radius: var(--radius-pill); padding: 5px 12px;
      font-size: 12px; font-weight: 700; letter-spacing: .02em;
      line-height: 1.2; white-space: nowrap;
      font-variant-numeric: tabular-nums;
    }
    .badge-teal { background: var(--c-soft); color: #08615F; border: 1px solid rgba(14,143,140,.22); }
    .badge-amber { background: var(--c-amber-soft); color: #7A4E09; border: 1px solid rgba(230,162,60,.35); }
    .badge-line {
      background: transparent; color: var(--c-primary-deep);
      border: 1px solid transparent;
      background-image: linear-gradient(#fff,#fff), var(--grad);
      background-origin: border-box; background-clip: padding-box, border-box;
    }
    .badge-dark { background: rgba(62,199,192,.14); color: #D7FFFB; border: 1px solid rgba(62,199,192,.28); }
    .badge-dark-amber { background: rgba(230,162,60,.16); color: #F8EDD8; border: 1px solid rgba(230,162,60,.35); }

    .btn {
      display: inline-flex; align-items: center; justify-content: center; gap: 8px;
      min-height: 46px; padding: 0 20px; border-radius: var(--radius-btn);
      font-size: 15px; font-weight: 700; letter-spacing: .02em;
      transition: transform .2s ease, box-shadow .2s ease, filter .2s ease, background .2s ease, color .2s ease, border-color .2s ease;
      text-decoration: none; border: 1px solid transparent;
    }
    .btn:hover { transform: translateY(-3px); }
    .btn:active { transform: translateY(0); }
    .btn:focus-visible { outline: none; box-shadow: var(--focus); }
    .btn-primary {
      color: #fff; background: var(--grad);
      box-shadow: 0 10px 22px rgba(14,143,140,.28);
    }
    .btn-primary:hover { filter: brightness(1.08); color: #fff; }
    .btn-ghost {
      color: #fff; background: rgba(255,255,255,.08);
      border-color: rgba(255,255,255,.28); backdrop-filter: blur(8px);
    }
    .btn-ghost:hover { background: rgba(255,255,255,.16); color: #fff; }
    .btn-outline {
      color: var(--c-primary-deep); background: #fff;
      border-color: rgba(14,143,140,.28);
    }
    .btn-outline:hover { border-color: var(--c-primary); box-shadow: var(--shadow); color: var(--c-primary-deep); }
    .btn-amber {
      background: linear-gradient(120deg, #E6A23C, #F0C36A);
      color: #3B2A0A; box-shadow: 0 10px 20px rgba(230,162,60,.28);
    }
    .btn-amber:hover { color: #3B2A0A; filter: brightness(1.05); }

    .site-header {
      position: sticky; top: 0; z-index: 50;
      transition: box-shadow .25s ease;
    }
    .site-header.is-scrolled { box-shadow: 0 10px 24px rgba(18,22,28,.08); }
    .nav-top {
      height: var(--header-top); background: var(--c-dark); color: #C9D3DA;
      font-size: 13px; display: flex; align-items: center;
    }
    .nav-top .container {
      display: flex; align-items: center; justify-content: space-between; gap: 16px;
    }
    .nav-top-links { display: flex; align-items: center; gap: 22px; flex-wrap: wrap; }
    .nav-top a { color: #E8EEF2; }
    .nav-top a:hover { color: var(--c-primary-bright); }
    .nav-top span, .nav-top a { display: inline-flex; align-items: center; gap: 6px; }
    .nav-main {
      height: var(--header-main); background: rgba(243,245,247,.88);
      backdrop-filter: blur(16px); border-bottom: 1px solid rgba(215,222,227,.8);
      display: flex; align-items: center;
    }
    .site-header.is-compact .nav-top { display: none; }
    .site-header.is-compact .nav-main { height: 62px; }
    .nav-main .container {
      display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 18px;
    }
    .logo { display: flex; align-items: center; gap: 10px; color: var(--c-text); min-height: 44px; }
    .logo:hover { color: var(--c-primary-deep); }
    .logo-mark {
      width: 34px; height: 34px; border-radius: 10px; background: var(--grad);
      display: grid; place-items: center; box-shadow: 0 8px 16px rgba(14,143,140,.28);
      flex: 0 0 34px;
    }
    .logo-text { font-weight: 800; font-size: 18px; letter-spacing: .04em; white-space: nowrap; }
    .nav-links { display: flex; justify-content: center; gap: 4px; flex-wrap: wrap; }
    .nav-links a {
      color: var(--c-muted); font-size: 14px; font-weight: 650; padding: 8px 10px;
      border-radius: 10px; min-height: 40px; display: inline-flex; align-items: center;
    }
    .nav-links a:hover { color: var(--c-primary-deep); background: rgba(14,143,140,.08); }
    .nav-links a.is-active {
      color: var(--c-primary-deep); background: var(--c-soft);
      box-shadow: inset 0 -2px 0 var(--c-primary);
    }
    .nav-cta { display: flex; align-items: center; gap: 10px; }
    .menu-toggle {
      display: none; width: 44px; height: 44px; border-radius: 12px;
      border: 1px solid var(--c-line); background: #fff; place-items: center; gap: 5px;
      flex-direction: column;
    }
    .menu-toggle span { width: 18px; height: 2px; background: var(--c-text); display: block; transition: .2s ease; }
    .menu-toggle.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
    .menu-toggle.is-open span:nth-child(2) { opacity: 0; }
    .menu-toggle.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
    .drawer {
      position: fixed; inset: 0; background: rgba(18,22,28,.46); z-index: 60;
      opacity: 0; pointer-events: none; transition: opacity .25s ease;
    }
    .drawer.is-open { opacity: 1; pointer-events: auto; }
    .drawer-panel {
      position: absolute; right: 0; top: 0; height: 100%; width: min(86vw, 360px);
      background: #fff; padding: 28px 22px 32px; transform: translateX(100%);
      transition: transform .28s ease; overflow: auto; box-shadow: var(--shadow-dark);
    }
    .drawer.is-open .drawer-panel { transform: none; }
    .drawer-panel a {
      display: flex; align-items: center; min-height: 46px; padding: 8px 4px;
      border-bottom: 1px solid var(--c-line); color: var(--c-text); font-weight: 700;
    }
    .drawer-meta { margin: 18px 0; color: var(--c-muted); font-size: 14px; display: grid; gap: 8px; }

    .hero {
      position: relative; min-height: max(92vh, 680px); color: #fff;
      isolation: isolate; overflow: hidden;
    }
    .hero-track { position: absolute; inset: 0; }
    .hero-slide {
      position: absolute; inset: 0; opacity: 0; transform: scale(1.04);
      transition: opacity .7s ease, transform 1.1s ease; pointer-events: none;
    }
    .hero-slide.is-active { opacity: 1; transform: none; pointer-events: auto; z-index: 1; }
    .hero-slide img {
      width: 100%; height: 100%; object-fit: cover; filter: saturate(1.05) contrast(1.05);
    }
    .hero-mask {
      position: absolute; inset: 0;
      background:
        linear-gradient(90deg, rgba(12,18,22,.88) 0%, rgba(11,58,66,.62) 46%, rgba(12,18,22,.28) 100%),
        linear-gradient(180deg, rgba(18,22,28,.18) 0%, rgba(18,22,28,.55) 100%);
    }
    .hero-grid {
      position: absolute; inset: 0; pointer-events: none; opacity: .07;
      background-image:
        linear-gradient(rgba(255,255,255,.7) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,.7) 1px, transparent 1px);
      background-size: 48px 48px;
    }
    .hero-scan {
      position: absolute; left: 0; right: 0; height: 18%;
      background: linear-gradient(180deg, transparent, rgba(62,199,192,.18), transparent);
      animation: scan 7s linear infinite; pointer-events: none;
    }
    @keyframes scan { from { top: -18%; } to { top: 100%; } }
    .hero-copy {
      position: relative; z-index: 2; min-height: max(92vh, 680px);
      display: flex; flex-direction: column; justify-content: flex-end;
      padding: 140px 0 88px;
    }
    .brand-kicker {
      display: inline-flex; align-items: center; gap: 8px; font-weight: 800;
      letter-spacing: .18em; font-size: 13px; color: var(--c-primary-bright);
      margin-bottom: 16px;
    }
    .hero h1, .slide-title {
      font-size: clamp(32px, 4.6vw, 58px); line-height: 1.18; font-weight: 820;
      letter-spacing: .02em; max-width: 18ch; margin-bottom: 16px;
    }
    .hero-lead {
      max-width: 68ch; color: #E6EEF2; font-size: 16px; line-height: 1.85;
      margin-bottom: 22px;
    }
    .hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 22px; }
    .hero-heats { display: flex; flex-wrap: wrap; gap: 10px; }
    .heat {
      min-width: 132px; padding: 10px 14px; border-radius: 16px;
      background: rgba(18,22,28,.42); border: 1px solid rgba(230,162,60,.38);
      backdrop-filter: blur(8px);
    }
    .heat b { display: block; color: var(--c-accent); font-size: 20px; font-variant-numeric: tabular-nums; }
    .heat span { color: #D5DEE4; font-size: 12px; }
    .hero-ctrl {
      position: absolute; z-index: 3; inset: auto 0 28px auto; width: min(100% - 40px, var(--container));
      left: 50%; transform: translateX(-50%);
      display: flex; justify-content: flex-end; align-items: center; gap: 12px;
    }
    .hero-arrow {
      width: 44px; height: 44px; border-radius: 12px; border: 1px solid rgba(255,255,255,.28);
      color: #fff; background: rgba(18,22,28,.35); display: grid; place-items: center;
    }
    .hero-arrow:hover { background: rgba(14,143,140,.55); }
    .hero-dots { display: flex; gap: 8px; }
    .hero-dots button {
      width: 10px; height: 10px; border-radius: 50%; background: rgba(255,255,255,.38);
    }
    .hero-dots button.is-active { background: var(--c-accent); transform: scale(1.2); }

    main { display: block; }
    .sec { padding: var(--space-sec) 0; position: relative; }
    .sec h2 {
      font-size: clamp(26px, 3vw, 36px); line-height: 1.28; font-weight: 800;
      letter-spacing: .01em; margin-bottom: 14px;
    }
    .sec-lead { color: var(--c-muted); max-width: 72ch; margin-bottom: 36px; line-height: 1.8; }
    .sec-head { display: flex; justify-content: space-between; gap: 24px; align-items: end; flex-wrap: wrap; margin-bottom: 8px; }
    .sec-alt { background: #fff; }
    .sec-soft { background: linear-gradient(180deg, #F3F5F7 0%, #EAF3F2 100%); }

    .board-grid {
      display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px;
    }
    .board-card {
      background: var(--c-card); border-radius: var(--radius-card); padding: 22px 20px 20px;
      box-shadow: var(--shadow); border: 1px solid transparent;
      background-image: linear-gradient(#fff,#fff), var(--grad);
      background-origin: border-box; background-clip: padding-box, border-box;
      min-width: 220px; transition: transform .2s ease, box-shadow .2s ease;
    }
    .board-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-hover); }
    .board-top { display: flex; justify-content: space-between; align-items: flex-start; gap: 12px; }
    .board-card .num {
      font-size: 32px; font-weight: 800; letter-spacing: -.02em;
      font-variant-numeric: tabular-nums; color: var(--c-primary-deep); line-height: 1.1;
    }
    .board-card p { color: var(--c-muted); font-size: 13px; margin-top: 8px; }
    .mini-bar { height: 6px; border-radius: 99px; background: #E6ECEE; margin-top: 14px; overflow: hidden; }
    .mini-bar span { display: block; height: 100%; border-radius: 99px; background: var(--grad); }
    .ring {
      --p: 70;
      width: 54px; height: 54px; border-radius: 50%;
      background: conic-gradient(var(--c-primary) calc(var(--p) * 1%), #D7DEE3 0);
      display: grid; place-items: center; flex: 0 0 54px;
    }
    .ring i { width: 36px; height: 36px; background: #fff; border-radius: 50%; display: block; }

    .split {
      display: grid; grid-template-columns: 1.05fr .95fr; gap: 36px; align-items: center;
    }
    .intro-frame {
      border-radius: 28px; overflow: hidden; position: relative; box-shadow: var(--shadow);
      min-height: 420px;
    }
    .intro-frame img { width: 100%; height: 100%; object-fit: cover; min-height: 420px; }
    .param-row { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 22px; }
    .param {
      background: #fff; border-radius: 16px; padding: 12px 14px; border: 1px solid var(--c-line);
    }
    .param b { display: block; color: var(--c-primary-deep); font-variant-numeric: tabular-nums; }
    .param span { color: var(--c-muted); font-size: 13px; }

    .bento {
      display: grid; grid-template-columns: repeat(12, 1fr); gap: 16px;
    }
    .svc {
      background: #fff; border-radius: var(--radius-card); overflow: hidden;
      box-shadow: var(--shadow); border: 1px solid rgba(14,143,140,.08);
      display: flex; flex-direction: column; min-height: 100%;
      transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
    }
    .svc:hover { transform: translateY(-5px); box-shadow: var(--shadow-hover); border-color: var(--c-primary); }
    .svc img { width: 100%; height: 160px; object-fit: cover; }
    .svc-body { padding: 20px 20px 18px; display: flex; flex-direction: column; gap: 10px; flex: 1; }
    .svc h3 { font-size: 20px; line-height: 1.35; }
    .svc p { color: var(--c-muted); font-size: 14px; }
    .bento-a { grid-column: span 7; grid-row: span 2; }
    .bento-a img { height: 240px; }
    .bento-b, .bento-c { grid-column: span 5; }
    .bento-d, .bento-e, .bento-f { grid-column: span 4; }
    .bento-b img, .bento-c img { height: 132px; }

    .sol-grid {
      display: grid; grid-template-columns: 1.25fr .75fr; grid-template-rows: 1fr 1fr; gap: 16px;
    }
    .sol {
      position: relative; border-radius: 26px; overflow: hidden; min-height: 230px;
      box-shadow: var(--shadow); color: #fff; isolation: isolate;
      transition: transform .2s ease, box-shadow .2s ease;
    }
    .sol:hover { transform: translateY(-5px); box-shadow: var(--shadow-hover); }
    .sol img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; z-index: 0; }
    .sol::after {
      content: ""; position: absolute; inset: 0; z-index: 1;
      background: linear-gradient(180deg, rgba(11,58,66,.18), rgba(12,18,22,.82));
    }
    .sol-body { position: relative; z-index: 2; padding: 24px; height: 100%; display: flex; flex-direction: column; justify-content: flex-end; gap: 10px; }
    .sol-main { grid-row: span 2; min-height: 520px; }
    .sol h3 { font-size: 24px; }
    .sol-main h3 { font-size: 32px; max-width: 12ch; }
    .sol p { color: #DCE6EA; font-size: 14px; max-width: 46ch; }

    .compare-wrap {
      display: grid; grid-template-columns: 1.1fr .9fr; gap: 28px; align-items: stretch;
    }
    .compare-visual { position: relative; border-radius: 26px; overflow: hidden; min-height: 420px; box-shadow: var(--shadow); }
    .compare-visual img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
    .compare-visual .after { clip-path: inset(0 0 0 50%); }
    .compare-range {
      position: absolute; inset: 0; z-index: 3; width: 100%; height: 100%; opacity: 0; cursor: ew-resize;
    }
    .compare-line {
      position: absolute; top: 0; bottom: 0; left: 50%; width: 2px; background: var(--c-accent); z-index: 2;
      box-shadow: 0 0 0 4px rgba(230,162,60,.25);
    }
    .compare-line span {
      position: absolute; top: 50%; left: 50%; transform: translate(-50%,-50%);
      width: 44px; height: 44px; border-radius: 50%; background: var(--c-accent); color: #3B2A0A;
      display: grid; place-items: center; font-weight: 800;
    }
    .scoreboard { background: #fff; border-radius: 26px; overflow: hidden; box-shadow: var(--shadow); }
    .scoreboard table th, .scoreboard table td { padding: 14px 16px; text-align: left; font-size: 14px; }
    .scoreboard thead { background: var(--c-dark); color: #fff; }
    .scoreboard tbody tr:nth-child(even) { background: #F7FAFB; }
    .scoreboard td strong { color: var(--c-primary-deep); }
    .bars { display: grid; gap: 12px; padding: 18px 16px 20px; }
    .bar-row span { display: flex; justify-content: space-between; font-size: 13px; color: var(--c-muted); margin-bottom: 6px; }
    .bar { height: 10px; background: #E6ECEE; border-radius: 99px; overflow: hidden; display: flex; }
    .bar i { display: block; height: 100%; }
    .bar i.a { background: #8A96A0; }
    .bar i.b { background: var(--grad); }

    .dark-sec {
      background: var(--c-dark); color: #EEF3F6; overflow: hidden;
    }
    .dark-sec::before {
      content: ""; position: absolute; width: 58%; height: 140%; right: -12%; top: -20%;
      background: radial-gradient(circle at 30% 30%, rgba(14,143,140,.28), transparent 58%);
      pointer-events: none;
    }
    .dark-sec h2 { color: #fff; }
    .dark-sec .sec-lead { color: #B7C3CC; }
    .case-grid { display: grid; grid-template-columns: 1.15fr .85fr .85fr; gap: 16px; position: relative; z-index: 1; }
    .case-card {
      border-radius: 24px; padding: 24px; min-height: 280px;
      background: linear-gradient(180deg, rgba(26,34,43,.9), rgba(11,58,66,.72));
      border: 1px solid rgba(62,199,192,.18);
      box-shadow: var(--shadow-dark);
      display: flex; flex-direction: column; gap: 12px;
    }
    .case-card:first-child {
      background:
        linear-gradient(180deg, rgba(12,18,22,.35), rgba(12,18,22,.82)),
        url("/assets/images/73bb066e52eaaecd.webp") center/cover no-repeat;
    }
    .idea { font-size: 18px; font-weight: 800; color: var(--c-primary-bright); }

    .timeline { position: relative; margin-top: 12px; }
    .timeline::before {
      content: ""; position: absolute; left: 0; right: 0; top: 28px; height: 2px;
      background: linear-gradient(90deg, var(--c-primary-deep), var(--c-primary-bright));
    }
    .time-row { display: grid; grid-template-columns: repeat(8, 1fr); gap: 10px; }
    .time-node { text-align: center; position: relative; padding-top: 8px; }
    .dot {
      width: 16px; height: 16px; border-radius: 50%; margin: 0 auto 14px;
      background: var(--c-accent); box-shadow: 0 0 0 6px rgba(230,162,60,.18);
    }
    .time-node h3 { font-size: 15px; margin-bottom: 8px; }
    .time-node p { color: var(--c-muted); font-size: 13px; }

    .story-grid { display: grid; grid-template-columns: 1.2fr .9fr .9fr; gap: 16px; }
    .story {
      background: #fff; border-radius: 26px; overflow: hidden; box-shadow: var(--shadow);
      display: flex; flex-direction: column;
    }
    .story img { height: 200px; width: 100%; object-fit: cover; }
    .story-body { padding: 20px; display: grid; gap: 10px; }
    .story h3 { font-size: 20px; }
    .story p { color: var(--c-muted); font-size: 14px; }
    .role { font-size: 13px; color: var(--c-primary-deep); font-weight: 700; }

    .stats-bar {
      background: var(--grad-dark); color: #fff; border-radius: 28px; padding: 28px 18px;
      display: grid; grid-template-columns: repeat(6, 1fr); gap: 8px;
      box-shadow: var(--shadow-dark);
    }
    .stat { text-align: center; padding: 8px; }
    .stat b {
      display: block; font-size: 30px; font-weight: 800; font-variant-numeric: tabular-nums;
      color: var(--c-accent);
    }
    .stat span { font-size: 13px; color: #D5DEE4; }

    .review-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
    .review {
      background: #fff; border-radius: 24px; padding: 22px; box-shadow: var(--shadow);
      border-left: 4px solid var(--c-primary); display: grid; gap: 12px;
      transition: transform .2s ease, box-shadow .2s ease;
    }
    .review:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
    .who { display: flex; gap: 10px; align-items: center; }
    .avatar {
      width: 44px; height: 44px; border-radius: 14px; display: grid; place-items: center;
      color: #fff; font-weight: 800; background: var(--grad);
    }
    .review p { color: var(--c-muted); font-size: 14px; }
    .stars { color: var(--c-accent); letter-spacing: 2px; font-size: 12px; }

    .news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
    .news {
      background: #fff; border-radius: 24px; overflow: hidden; box-shadow: var(--shadow);
      display: flex; flex-direction: column; min-height: 100%;
      transition: transform .2s ease, border-color .2s ease;
      border: 1px solid transparent;
    }
    .news:hover { transform: translateY(-4px); border-color: var(--c-primary); }
    .news img { height: 170px; width: 100%; object-fit: cover; }
    .news-body { padding: 18px; display: grid; gap: 8px; }
    .news h3 { font-size: 18px; line-height: 1.4; }
    .news p { color: var(--c-muted); font-size: 14px; }
    .news-meta { display: flex; justify-content: space-between; align-items: center; gap: 8px; }

    .guard-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
    .guard {
      background: #fff; border-radius: 24px; padding: 22px; box-shadow: var(--shadow);
      display: grid; gap: 10px;
    }
    .guard h3 { font-size: 18px; }
    .guard li { position: relative; padding-left: 16px; color: var(--c-muted); font-size: 14px; margin: 6px 0; }
    .guard li::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--c-primary); position: absolute; left: 0; top: .55em; }
    .seal {
      width: 54px; height: 54px; border-radius: 50%; display: grid; place-items: center;
      border: 2px dashed var(--c-primary); color: var(--c-primary-deep); font-size: 11px; font-weight: 800;
      transform: rotate(-12deg);
    }

    .quick-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
    .quick {
      min-height: 120px; border-radius: 22px; padding: 20px; background: #fff;
      box-shadow: var(--shadow); display: flex; flex-direction: column; justify-content: space-between;
      text-align: left; color: var(--c-text); border: 1px solid transparent;
      transition: transform .2s ease, border-color .2s ease, box-shadow .2s ease;
    }
    .quick:hover { transform: translateY(-4px); border-color: var(--c-primary); box-shadow: var(--shadow-hover); color: var(--c-text); }
    .quick:focus-visible { outline: none; box-shadow: var(--focus); }
    .quick strong { font-size: 17px; }
    .quick span { color: var(--c-muted); font-size: 13px; }

    .faq-list { background: #fff; border-radius: 24px; box-shadow: var(--shadow); overflow: hidden; }
    .faq-item { border-top: 1px solid var(--c-line); }
    .faq-item:first-child { border-top: 0; }
    .faq-q {
      width: 100%; text-align: left; padding: 18px 56px 18px 22px; min-height: 64px;
      font-size: 16px; font-weight: 750; position: relative; color: var(--c-text); background: #fff;
    }
    .faq-q::after {
      content: ""; position: absolute; right: 22px; top: 50%; width: 10px; height: 10px;
      border-right: 2px solid var(--c-primary); border-bottom: 2px solid var(--c-primary);
      transform: translateY(-70%) rotate(45deg); transition: transform .2s ease;
    }
    .faq-item.is-open .faq-q::after { transform: translateY(-20%) rotate(225deg); }
    .faq-a {
      display: none; padding: 0 22px 18px; color: var(--c-muted); line-height: 1.8;
    }
    .faq-item.is-open .faq-a { display: block; }

    .form-card {
      background: #fff; border-radius: 28px; padding: 28px; box-shadow: var(--shadow);
      display: grid; grid-template-columns: 1fr 1fr; gap: 16px 18px;
    }
    .field { display: grid; gap: 8px; }
    .field.full { grid-column: 1 / -1; }
    label { font-size: 14px; font-weight: 700; }
    input, textarea {
      width: 100%; border: 1px solid var(--c-line); border-radius: 12px; padding: 12px 14px;
      min-height: 46px; background: #FBFCFD; color: var(--c-text); font-size: 15px;
      transition: border-color .2s ease, box-shadow .2s ease;
    }
    textarea { min-height: 120px; resize: vertical; }
    input:focus, textarea:focus { outline: none; border-color: var(--c-primary); box-shadow: var(--focus); background: #fff; }
    .field.is-error input, .field.is-error textarea { border-color: #C9841F; background: #FFF9F0; }
    .error { color: #A65B12; font-size: 13px; display: none; }
    .field.is-error .error { display: block; }
    .form-actions { grid-column: 1 / -1; display: flex; justify-content: flex-end; }
    .form-actions .btn { min-width: 220px; }
    .form-ok {
      display: none; grid-column: 1 / -1; background: var(--c-soft); color: #08615F;
      border-radius: 16px; padding: 14px 16px; font-weight: 700;
    }
    .cta-band {
      margin-top: 28px; border-radius: 28px; padding: 32px 28px;
      background: var(--grad); color: #fff; display: flex; justify-content: space-between;
      align-items: center; gap: 18px; flex-wrap: wrap; box-shadow: var(--shadow-dark);
    }
    .cta-band h2 { color: #fff; margin: 0 0 8px; }
    .cta-band p { color: #E7F7F6; max-width: 62ch; }
    .cta-actions { display: flex; gap: 10px; flex-wrap: wrap; }

    .site-footer {
      background: #0E141A; color: #C5D0D6; padding: 64px 0 28px;
    }
    .foot-grid { display: grid; grid-template-columns: 1.3fr .8fr .9fr .9fr; gap: 28px; }
    .site-footer h3 { color: #fff; font-size: 16px; margin-bottom: 14px; }
    .site-footer a { color: #C5D0D6; display: inline-block; min-height: 32px; }
    .site-footer a:hover { color: var(--c-primary-bright); }
    .foot-brand .logo { color: #fff; margin-bottom: 12px; }
    .foot-brand p { font-size: 14px; line-height: 1.8; }
    .foot-bottom {
      margin-top: 28px; padding-top: 18px; border-top: 1px solid rgba(255,255,255,.08);
      display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; font-size: 13px;
    }

    @media (max-width: 1280px) {
      :root { --space-sec: 96px; }
      .board-grid { grid-template-columns: repeat(4, minmax(0,1fr)); }
      .review-grid, .news-grid { grid-template-columns: repeat(2, 1fr); }
      .stats-bar { grid-template-columns: repeat(3, 1fr); }
    }
    @media (max-width: 1024px) {
      .nav-links, .nav-cta .btn { display: none; }
      .menu-toggle { display: inline-flex; }
      .split, .compare-wrap, .case-grid, .story-grid, .guard-grid, .sol-grid { grid-template-columns: 1fr; }
      .sol-main { grid-row: auto; min-height: 360px; }
      .bento-a, .bento-b, .bento-c, .bento-d, .bento-e, .bento-f { grid-column: span 6; grid-row: auto; }
      .time-row { grid-template-columns: repeat(4, 1fr); }
      .timeline::before { display: none; }
      .foot-grid { grid-template-columns: 1fr 1fr; }
      .hero h1, .slide-title { max-width: 14ch; }
    }
    @media (max-width: 768px) {
      :root { --space-sec: 76px; }
      .container { width: min(100% - 28px, var(--container)); }
      .nav-top-links { gap: 10px; }
      .nav-top .hide-m { display: none; }
      .hero, .hero-copy { min-height: 100svh; }
      .hero-copy { padding: 120px 0 92px; }
      .board-grid {
        display: flex; overflow-x: auto; scroll-snap-type: x mandatory;
        gap: 12px; padding-bottom: 8px;
      }
      .board-card { min-width: 78%; scroll-snap-align: start; }
      .param-row, .form-card, .quick-grid, .news-grid, .review-grid, .guard-grid { grid-template-columns: 1fr; }
      .bento { grid-template-columns: 1fr; }
      .bento-a, .bento-b, .bento-c, .bento-d, .bento-e, .bento-f { grid-column: auto; }
      .time-row { grid-template-columns: 1fr; }
      .time-node { text-align: left; padding-left: 28px; border-left: 2px solid var(--c-primary); }
      .dot { position: absolute; left: -9px; margin: 0; }
      .stats-bar { grid-template-columns: 1fr 1fr; border-radius: 20px; }
      .cta-band, .form-actions { display: grid; }
      .form-actions .btn, .cta-actions .btn { width: 100%; }
      .foot-grid { grid-template-columns: 1fr; }
      .intro-frame, .intro-frame img { min-height: 260px; }
    }
    @media (max-width: 520px) {
      .logo-text { font-size: 16px; }
      .hero-heats { width: 100%; }
      .heat { flex: 1; min-width: calc(50% - 10px); }
      .board-card { min-width: 86%; }
      .btn { width: 100%; }
      .hero-actions { width: 100%; }
    }
    @media (max-width: 375px) {
      html, body { overflow-x: hidden; }
      .container { width: calc(100% - 24px); }
      .hero h1, .slide-title { font-size: 28px; }
      .sec h2 { font-size: 24px; }
    }
    @media (prefers-reduced-motion: reduce) {
      html { scroll-behavior: auto; }
      *, *::before, *::after { animation: none !important; transition: none !important; }
    }

/* roulang page: index */
:root {
      --c-primary: #0b8f7e;
      --c-primary-2: #19b89a;
      --c-primary-3: #86e0cc;
      --c-graphite: #2a3136;
      --c-steel: #5c676f;
      --c-amber: #c99212;
      --c-amber-2: #e3b34a;
      --c-bg: #eef3f0;
      --c-bg-2: #f6faf7;
      --c-paper: #ffffff;
      --c-text: #1c2428;
      --c-muted: #5a666c;
      --c-line: #d5dfd9;
      --c-dark: #12181b;
      --c-dark-2: #0b3a34;
      --c-fog: #f3f7f5;
      --radius: 24px;
      --radius-sm: 14px;
      --radius-pill: 999px;
      --shadow: 0 12px 28px rgba(28, 48, 44, 0.08);
      --shadow-hover: 0 16px 32px rgba(11, 143, 126, 0.16);
      --grad: linear-gradient(120deg, #2a3136 0%, #0b8f7e 52%, #86e0cc 100%);
      --container: 1240px;
      --space: 88px;
      --font: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
      --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
    }
    *, *::before, *::after { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    html, body { margin: 0; padding: 0; }
    body {
      font-family: var(--font);
      font-size: 16px;
      line-height: 1.7;
      color: var(--c-text);
      background: var(--c-bg);
      overflow-x: hidden;
    }
    body.nav-lock { overflow: hidden; }
    img { max-width: 100%; height: auto; display: block; }
    a { color: inherit; text-decoration: none; }
    button, input, select, textarea { font-family: inherit; }
    button { cursor: pointer; }
    h1, h2, h3, h4 { margin: 0; letter-spacing: -0.03em; line-height: 1.25; font-weight: 800; }
    p { margin: 0; }
    ul { margin: 0; padding: 0; list-style: none; }
    :focus-visible {
      outline: 2px solid var(--c-primary-2);
      outline-offset: 3px;
    }
    .container {
      width: min(100% - 40px, var(--container));
      margin: 0 auto;
    }
    .skip {
      position: absolute; left: -999px; top: 0;
    }
    .skip:focus { left: 16px; top: 16px; z-index: 80; background: #fff; padding: 8px 12px; }

    .site-header {
      position: relative;
      z-index: 50;
      background: rgba(243, 247, 245, 0.92);
      border-bottom: 1px solid var(--c-line);
      backdrop-filter: saturate(1.1);
    }
    .nav-top {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      min-height: 64px;
    }
    .brand {
      display: flex;
      align-items: center;
      gap: 10px;
      min-height: 44px;
      flex-shrink: 0;
    }
    .brand-mark {
      width: 40px; height: 40px; border-radius: 12px;
      background: var(--grad);
      display: grid; place-items: center;
      box-shadow: 0 8px 16px rgba(11, 143, 126, 0.22);
    }
    .brand-mark svg { width: 22px; height: 22px; fill: none; stroke: #f4fffb; stroke-width: 1.7; }
    .brand-name { font-weight: 800; font-size: 18px; letter-spacing: -0.04em; color: var(--c-graphite); }
    .brand-name em { font-style: normal; color: var(--c-primary); }
    .nav-meta {
      display: flex;
      align-items: center;
      gap: 18px;
      color: var(--c-steel);
      font-size: 14px;
    }
    .nav-meta a { display: inline-flex; align-items: center; gap: 6px; min-height: 44px; }
    .nav-meta a:hover { color: var(--c-primary); }
    .nav-sub {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      min-height: 52px;
      border-top: 1px solid rgba(213, 223, 217, 0.8);
    }
    .nav-sub.is-sticky {
      position: sticky;
      top: 0;
      z-index: 45;
      background: rgba(238, 243, 240, 0.96);
      box-shadow: 0 8px 20px rgba(18, 24, 27, 0.06);
    }
    .anchor-nav { display: flex; flex-wrap: wrap; gap: 6px 4px; }
    .anchor-nav a {
      display: inline-flex; align-items: center;
      min-height: 44px; padding: 0 12px;
      border-radius: var(--radius-pill);
      color: var(--c-steel); font-size: 14px; font-weight: 600;
      transition: 0.2s ease;
    }
    .anchor-nav a:hover { color: var(--c-primary); background: rgba(11, 143, 126, 0.08); }
    .anchor-nav a.active {
      color: #fff;
      background: var(--c-graphite);
    }
    .btn {
      display: inline-flex; align-items: center; justify-content: center;
      min-height: 44px; padding: 0 20px; border-radius: var(--radius-pill);
      border: 2px solid transparent; font-weight: 700; letter-spacing: 0.01em;
      transition: 0.2s ease; white-space: nowrap;
    }
    .btn-primary {
      background: var(--grad); color: #fff;
      box-shadow: 0 8px 18px rgba(11, 143, 126, 0.28);
    }
    .btn-primary:hover { filter: brightness(1.08); box-shadow: 0 0 0 2px var(--c-primary-3), 0 10px 22px rgba(11, 143, 126, 0.3); }
    .btn-primary:active { transform: translateY(1px); }
    .btn-ghost {
      background: transparent; color: #eef7f4; border-color: rgba(238, 247, 244, 0.45);
    }
    .btn-ghost:hover { border-color: var(--c-primary-3); color: #fff; box-shadow: 0 0 0 2px rgba(134, 224, 204, 0.35); }
    .btn-line {
      background: #fff; color: var(--c-graphite); border-color: var(--c-graphite);
    }
    .btn-line:hover { color: var(--c-primary); border-color: var(--c-primary); box-shadow: 0 0 0 2px rgba(11, 143, 126, 0.2); }
    .menu-toggle {
      display: none; width: 44px; height: 44px; border: 0; background: transparent; padding: 0;
    }
    .menu-toggle span, .menu-toggle span::before, .menu-toggle span::after {
      display: block; width: 22px; height: 2px; background: var(--c-graphite); position: relative; border-radius: 2px;
    }
    .menu-toggle span::before, .menu-toggle span::after { content: ""; position: absolute; left: 0; }
    .menu-toggle span::before { top: -7px; }
    .menu-toggle span::after { top: 7px; }

    .drawer {
      position: fixed; inset: 0 0 0 auto; width: min(86vw, 360px);
      background: #12181b; color: #eef7f4; transform: translateX(100%);
      transition: transform 0.28s ease; z-index: 70; padding: 28px 22px;
      display: flex; flex-direction: column; gap: 18px;
    }
    body.nav-lock .drawer { transform: none; }
    .drawer a { min-height: 44px; display: flex; align-items: center; font-weight: 600; border-bottom: 1px solid rgba(255,255,255,0.08); }
    .drawer a:hover, .drawer a.active { color: var(--c-primary-3); }
    .drawer-mask {
      position: fixed; inset: 0; background: rgba(10, 16, 18, 0.45); opacity: 0; pointer-events: none; z-index: 60; transition: 0.2s;
    }
    body.nav-lock .drawer-mask { opacity: 1; pointer-events: auto; }

    .hero {
      position: relative; min-height: min(92vh, 860px); color: #f4faf8; overflow: hidden;
      background: #12181b;
    }
    .hero-slide {
      position: absolute; inset: 0; opacity: 0; pointer-events: none;
      transition: opacity 0.6s ease;
    }
    .hero-slide.is-on { opacity: 1; pointer-events: auto; }
    .hero-slide img {
      width: 100%; height: 100%; object-fit: cover; filter: saturate(0.86) contrast(1.05);
    }
    .hero-slide::after {
      content: ""; position: absolute; inset: 0;
      background:
        linear-gradient(90deg, rgba(18,24,27,0.88) 0%, rgba(18,24,27,0.55) 46%, rgba(11,58,52,0.18) 100%),
        radial-gradient(circle at 78% 28%, rgba(11,143,126,0.22), transparent 42%);
    }
    .hero-copy {
      position: relative; z-index: 2; min-height: min(92vh, 860px);
      display: flex; align-items: center; padding: 48px 0 84px;
    }
    .hero-kicker {
      display: inline-flex; align-items: center; gap: 8px;
      color: var(--c-primary-3); font-weight: 700; font-size: 13px; letter-spacing: 0.12em;
      text-transform: none; margin-bottom: 16px;
    }
    .hero h1, .hero-title {
      font-size: clamp(32px, 5vw, 56px); max-width: 18ch; margin-bottom: 18px;
      background: linear-gradient(120deg, #f7fffc, #86e0cc 70%);
      -webkit-background-clip: text; background-clip: text; color: transparent;
    }
    .hero-lead { max-width: 42em; color: rgba(238,247,244,0.86); font-size: 16px; margin-bottom: 22px; }
    .badge-row { display: flex; flex-wrap: wrap; gap: 8px; margin: 18px 0 26px; }
    .badge {
      display: inline-flex; align-items: center; gap: 6px;
      min-height: 32px; padding: 0 12px; border-radius: var(--radius-pill);
      font-size: 12px; font-weight: 700; letter-spacing: 0.02em;
      font-variant-numeric: tabular-nums; font-family: var(--mono);
    }
    .badge-pass { background: rgba(11,143,126,0.16); color: #b7f3e4; border: 1px solid rgba(134,224,204,0.45); }
    .badge-warn { background: rgba(201,146,18,0.16); color: #f3d48a; border: 1px solid rgba(227,179,74,0.45); }
    .badge-steel { background: rgba(255,255,255,0.08); color: #e7eeeb; border: 1px solid rgba(255,255,255,0.16); }
    .badge-ink { background: rgba(11,143,126,0.1); color: var(--c-primary); border: 1px solid rgba(11,143,126,0.22); font-family: var(--mono); }
    .hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
    .hero-ctrl {
      position: absolute; z-index: 3; inset: auto 20px 24px 20px;
      display: flex; align-items: center; justify-content: space-between;
    }
    .dots { display: flex; gap: 8px; }
    .dots button {
      width: 10px; height: 10px; border-radius: 50%; border: 0; background: rgba(255,255,255,0.35); padding: 0; min-width: 44px; min-height: 44px;
      background: transparent; position: relative;
    }
    .dots button::after {
      content: ""; width: 10px; height: 10px; border-radius: 50%; background: rgba(255,255,255,0.35); position: absolute; left: 50%; top: 50%; transform: translate(-50%,-50%);
    }
    .dots button.is-on::after { width: 22px; border-radius: 8px; background: var(--c-primary-3); }
    .arrow {
      width: 44px; height: 44px; border-radius: 50%; border: 1px solid rgba(255,255,255,0.28);
      background: rgba(18,24,27,0.35); color: #fff; font-size: 18px;
    }
    .arrow:hover { border-color: var(--c-primary-3); }
    .deco-cross, .deco-ring { position: absolute; pointer-events: none; opacity: 0.18; }
    .deco-cross { right: 12%; top: 18%; width: 84px; height: 84px; }
    .deco-ring { right: 18%; bottom: 16%; width: 160px; height: 160px; }

    main { display: block; }
    .section { padding: var(--space) 0; position: relative; }
    .section-alt { background: var(--c-bg-2); }
    .section-grid {
      background-image:
        linear-gradient(rgba(11,143,126,0.035) 1px, transparent 1px),
        linear-gradient(90deg, rgba(11,143,126,0.035) 1px, transparent 1px);
      background-size: 28px 28px;
    }
    .sec-head { max-width: 720px; margin-bottom: 36px; }
    .sec-head h2 { font-size: clamp(24px, 3vw, 34px); margin-bottom: 12px; }
    .sec-head p { color: var(--c-muted); }
    .grad-text {
      background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent;
    }

    .metric-grid {
      display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px;
    }
    .metric-card {
      background: var(--c-paper); border-radius: var(--radius); padding: 22px 20px 20px;
      box-shadow: var(--shadow); border: 1px solid transparent; position: relative; overflow: hidden;
      transition: 0.25s ease;
    }
    .metric-card::before {
      content: ""; position: absolute; left: 0; right: 0; top: 0; height: 6px; background: var(--grad);
    }
    .metric-card:hover { transform: translateY(-5px); border-color: var(--c-primary); box-shadow: var(--shadow-hover); }
    .metric-card .num {
      font-family: var(--mono); font-size: 28px; font-weight: 700; color: var(--c-graphite);
      font-variant-numeric: tabular-nums; margin: 10px 0 6px;
    }
    .metric-card h3 { font-size: 16px; font-weight: 700; }
    .metric-card p { color: var(--c-muted); font-size: 14px; }

    .split { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 36px; align-items: center; }
    .media-card {
      border-radius: 28px; overflow: hidden; box-shadow: var(--shadow); position: relative;
    }
    .media-card img { width: 100%; height: 100%; object-fit: cover; aspect-ratio: 4/3; }
    .spec-table {
      width: 100%; border-collapse: collapse; margin-top: 18px;
      background: #fff; border-radius: 18px; overflow: hidden; box-shadow: var(--shadow);
    }
    .spec-table th, .spec-table td {
      padding: 12px 14px; text-align: left; border-bottom: 1px solid var(--c-line); font-size: 14px;
    }
    .spec-table th { width: 38%; color: var(--c-steel); font-weight: 600; background: #f3f8f6; }
    .spec-table td { font-family: var(--mono); font-size: 13px; }
    .bar { height: 8px; background: #e4ece8; border-radius: 8px; overflow: hidden; margin-top: 8px; }
    .bar > i { display: block; height: 100%; background: var(--grad); border-radius: 8px; }

    .matrix { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
    .big-card {
      background: #fff; border-radius: 26px; overflow: hidden; box-shadow: var(--shadow);
      border: 1px solid transparent; transition: 0.25s ease; display: flex; flex-direction: column;
    }
    .big-card:hover { transform: translateY(-5px); border-color: var(--c-primary); box-shadow: var(--shadow-hover); }
    .big-card img { width: 100%; aspect-ratio: 16/9; object-fit: cover; }
    .big-card .body { padding: 20px 20px 18px; display: flex; flex-direction: column; gap: 10px; flex: 1; }
    .big-card h3 { font-size: 18px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
    .big-card p { color: var(--c-muted); font-size: 14.5px; }
    .card-foot { margin-top: auto; display: flex; align-items: center; justify-content: space-between; gap: 8px; }

    .plan-grid { display: grid; grid-template-columns: 1.4fr 1fr; grid-template-rows: 1fr 1fr; gap: 18px; }
    .plan-grid .big-card:first-child { grid-row: 1 / span 2; }
    .plan-grid .big-card:first-child img { aspect-ratio: auto; height: 100%; min-height: 280px; }

    .compare { display: grid; grid-template-columns: 1.15fr 0.85fr; gap: 24px; align-items: stretch; }
    .compare-view { position: relative; border-radius: 28px; overflow: hidden; min-height: 420px; box-shadow: var(--shadow); }
    .compare-view img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
    .compare-view .after { clip-path: inset(0 50% 0 0); }
    .compare-view input[type=range] {
      position: absolute; left: 0; right: 0; bottom: 18px; width: calc(100% - 32px); margin: 0 16px; z-index: 2; accent-color: var(--c-amber);
    }
    .tag-float {
      position: absolute; z-index: 2; top: 16px; padding: 6px 12px; border-radius: 999px; font-size: 12px; font-weight: 700;
    }
    .tag-l { left: 16px; background: rgba(18,24,27,0.7); color: #fff; }
    .tag-r { right: 16px; background: rgba(11,143,126,0.85); color: #fff; }
    .mini-table { background: #fff; border-radius: 24px; box-shadow: var(--shadow); overflow: hidden; }
    .mini-table table { width: 100%; border-collapse: collapse; }
    .mini-table th, .mini-table td { padding: 14px 16px; border-bottom: 1px solid var(--c-line); text-align: left; }
    .mini-table th { font-size: 13px; color: var(--c-steel); }
    .mini-table td { font-family: var(--mono); font-size: 14px; }
    .down { color: var(--c-primary); font-weight: 700; }
    .up { color: var(--c-amber); font-weight: 700; }

    .dark {
      background: linear-gradient(180deg, #12181b 0%, #0b3a34 100%);
      color: #eef6f3;
    }
    .dark .sec-head p { color: rgba(238,246,243,0.72); }
    .case-main { display: grid; grid-template-columns: 1.2fr 0.8fr; gap: 18px; }
    .case-hero { position: relative; border-radius: 28px; overflow: hidden; min-height: 360px; }
    .case-hero img { width: 100%; height: 100%; object-fit: cover; min-height: 360px; }
    .case-hero .cap {
      position: absolute; inset: auto 0 0 0; padding: 24px;
      background: linear-gradient(transparent, rgba(10,16,18,0.88));
    }
    .case-side { display: grid; gap: 18px; }
    .case-mini { background: rgba(255,255,255,0.04); border: 1px solid rgba(134,224,204,0.18); border-radius: 22px; padding: 20px; }
    .case-mini h3 { font-size: 18px; margin-bottom: 8px; }

    .timeline { display: grid; grid-template-columns: repeat(5, 1fr); gap: 14px; position: relative; }
    .timeline::before {
      content: ""; position: absolute; left: 4%; right: 4%; top: 28px; height: 2px;
      background: linear-gradient(90deg, transparent, var(--c-primary), var(--c-primary-3), transparent);
    }
    .tl {
      background: #fff; border-radius: 22px; padding: 22px 16px 16px; box-shadow: var(--shadow); position: relative;
    }
    .tl .dot {
      width: 14px; height: 14px; border-radius: 50%; background: var(--c-primary); margin-bottom: 18px;
      box-shadow: 0 0 0 6px rgba(11,143,126,0.15);
    }
    .tl h3 { font-size: 16px; margin-bottom: 8px; }
    .tl p { color: var(--c-muted); font-size: 14px; }

    .story-grid { display: grid; grid-template-columns: 1.2fr 1fr 1fr; gap: 18px; }
    .stat-bar {
      display: grid; grid-template-columns: repeat(4, 1fr);
      background: linear-gradient(90deg, #1c2428 0%, #0b8f7e 100%);
      color: #fff; border-radius: 28px; overflow: hidden;
    }
    .stat-bar div { padding: 28px 20px; border-right: 1px solid rgba(255,255,255,0.08); }
    .stat-bar div:nth-child(even) { background: rgba(255,255,255,0.05); }
    .stat-bar strong { display: block; font-family: var(--mono); font-size: 28px; margin-bottom: 4px; }
    .stat-bar span { color: rgba(255,255,255,0.78); font-size: 14px; }

    .review-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
    .review {
      background: #fff; border-radius: 22px; padding: 22px; box-shadow: var(--shadow); border-top: 6px solid transparent;
      border-image: var(--grad) 1;
    }
    .review p { color: var(--c-muted); margin: 10px 0 14px; }
    .who { font-weight: 700; font-size: 14px; }

    .scene-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 12px; }
    .scene {
      grid-column: span 2; min-height: 160px; border-radius: 22px; padding: 20px; color: #fff; position: relative; overflow: hidden;
      display: flex; flex-direction: column; justify-content: flex-end;
    }
    .scene:nth-child(1) { grid-column: span 3; min-height: 220px; }
    .scene:nth-child(2) { grid-column: span 3; min-height: 220px; }
    .scene img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
    .scene::after { content: ""; position: absolute; inset: 0; background: linear-gradient(transparent 20%, rgba(18,24,27,0.82)); }
    .scene h3, .scene p { position: relative; z-index: 1; }
    .scene p { color: rgba(255,255,255,0.8); font-size: 14px; }

    .news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
    .more-link { display: inline-flex; min-height: 44px; align-items: center; color: var(--c-primary); font-weight: 700; }
    .more-link:hover { color: var(--c-graphite); }
    time { font-family: var(--mono); font-size: 12px; color: var(--c-steel); }

    .guard { display: grid; grid-template-columns: 1fr 1.4fr; gap: 24px; align-items: center; }
    .flow { display: grid; grid-template-columns: repeat(5, 1fr); gap: 10px; }
    .flow li {
      background: #fff; border-radius: 18px; padding: 16px 12px; text-align: center; box-shadow: var(--shadow); font-weight: 700; font-size: 14px;
    }
    .flow li span { display: block; color: var(--c-muted); font-weight: 400; font-size: 12px; margin-top: 6px; }

    .quick { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
    .qcard {
      background: #fff; border-radius: 20px; padding: 16px; box-shadow: var(--shadow);
      border-left: 4px solid var(--c-primary);
    }
    .qcard strong {
      display: inline-block; background: #e7f6f2; color: var(--c-primary); border-radius: 999px; padding: 4px 10px; font-size: 12px; margin-bottom: 8px;
    }
    .qcard p { font-size: 14px; color: var(--c-muted); }

    .faq-list { display: grid; gap: 10px; }
    .faq-item { background: #fff; border-radius: 18px; box-shadow: var(--shadow); overflow: hidden; }
    .faq-item button {
      width: 100%; text-align: left; background: transparent; border: 0; min-height: 56px;
      padding: 14px 48px 14px 18px; font-weight: 700; position: relative; color: var(--c-text);
    }
    .faq-item button::after {
      content: ""; position: absolute; right: 20px; top: 50%; width: 10px; height: 10px;
      border-right: 2px solid var(--c-primary); border-bottom: 2px solid var(--c-primary);
      transform: translateY(-70%) rotate(45deg); transition: 0.2s;
    }
    .faq-item.open button::after { transform: translateY(-20%) rotate(225deg); }
    .faq-item .ans { display: none; padding: 0 18px 16px; color: var(--c-muted); border-top: 1px solid rgba(11,143,126,0.15); }
    .faq-item.open .ans { display: block; }

    .contact-wrap { display: grid; grid-template-columns: 1.15fr 0.85fr; gap: 22px; }
    .form {
      background: #fff; border-radius: 28px; padding: 28px; box-shadow: var(--shadow);
    }
    .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 {
      min-height: 44px; border: 1px solid var(--c-line); border-radius: 12px; padding: 10px 12px; background: #fbfdfc; color: var(--c-text);
    }
    textarea { min-height: 96px; resize: vertical; }
    input:focus, select:focus, textarea:focus { border-color: var(--c-primary); box-shadow: 0 0 0 3px rgba(11,143,126,0.12); outline: none; }
    .field.error input, .field.error select, .field.error textarea { border-color: var(--c-amber); box-shadow: 0 0 0 3px rgba(201,146,18,0.15); }
    .err { color: #a67a0c; font-size: 12px; display: none; }
    .field.error .err { display: block; }
    .form-ok {
      display: none; background: #e7f6f2; color: var(--c-primary); border-radius: 14px; padding: 12px 14px; font-weight: 700; margin-bottom: 12px;
    }
    .aside-card {
      background: linear-gradient(180deg, #12181b, #0b3a34); color: #eef6f3; border-radius: 28px; padding: 28px;
    }
    .aside-card dt { color: rgba(255,255,255,0.6); font-size: 13px; margin-top: 14px; }
    .aside-card dd { margin: 0; font-weight: 700; }

    .site-footer {
      background: #12181b; color: #c9d6d1; padding: 48px 0 24px;
    }
    .foot-grid { display: grid; grid-template-columns: 1.2fr 1fr 1fr; gap: 24px; margin-bottom: 28px; }
    .site-footer a:hover { color: var(--c-primary-3); }
    .foot-brand { color: #fff; font-weight: 800; font-size: 20px; margin-bottom: 10px; }
    .copy { border-top: 1px solid rgba(255,255,255,0.08); padding-top: 16px; font-size: 13px; color: #8ea09a; }

    @media (max-width: 1280px) {
      .metric-grid { grid-template-columns: repeat(3, 1fr); }
      .scene-grid { grid-template-columns: repeat(4, 1fr); }
    }
    @media (max-width: 1024px) {
      :root { --space: 72px; }
      .nav-meta .hide-md { display: none; }
      .metric-grid, .matrix, .review-grid, .news-grid, .quick { grid-template-columns: repeat(2, 1fr); }
      .split, .compare, .case-main, .guard, .contact-wrap, .plan-grid, .story-grid { grid-template-columns: 1fr; }
      .plan-grid { grid-template-rows: auto; }
      .plan-grid .big-card:first-child { grid-row: auto; }
      .timeline { grid-template-columns: 1fr 1fr; }
      .timeline::before { display: none; }
      .flow { grid-template-columns: 1fr 1fr; }
      .stat-bar { grid-template-columns: 1fr 1fr; }
      .scene { grid-column: span 2 !important; min-height: 180px !important; }
    }
    @media (max-width: 768px) {
      :root { --space: 52px; }
      .container { width: min(100% - 28px, var(--container)); }
      .menu-toggle { display: grid; place-items: center; }
      .nav-sub, .nav-meta .desk-only, .nav-cta { display: none; }
      .metric-grid, .matrix, .review-grid, .news-grid, .quick, .fields, .foot-grid, .stat-bar, .flow, .timeline {
        grid-template-columns: 1fr;
      }
      .hero h1, .hero-title { font-size: 30px; }
      .hero-ctrl { inset: auto 8px 12px 8px; }
      .compare-view { min-height: 280px; }
    }
    @media (max-width: 520px) {
      :root { --space: 42px; }
      .badge { font-size: 11px; }
      .btn { width: 100%; }
      .hero-actions { width: 100%; }
    }