/* roulang page: index */
:root {
      --c-primary: #2E6FA8;
      --c-primary-dark: #1F4E79;
      --c-primary-deep: #1A4368;
      --c-primary-light: #E8F1F8;
      --c-amber: #D97706;
      --c-amber-dark: #B45309;
      --c-green: #2F9E6A;
      --c-green-soft: #E8F7F0;
      --c-bg: #F7F9FC;
      --c-card: #FFFFFF;
      --c-split: #E6ECF2;
      --c-text: #1E2933;
      --c-muted: #5B6773;
      --c-inverse: #F8FAFC;
      --c-dark: #17324A;
      --c-dark-2: #12283C;
      --radius: 14px;
      --radius-sm: 10px;
      --shadow: 0 8px 28px rgba(31, 78, 121, .08);
      --shadow-hover: 0 14px 36px rgba(31, 78, 121, .12);
      --shadow-nav: 0 10px 28px rgba(31, 78, 121, .12);
      --container: 1240px;
      --header-top: 42px;
      --header-main: 78px;
      --space-section: 104px;
      --space-section-m: 64px;
      --focus: 0 0 0 2px #fff, 0 0 0 4px var(--c-primary);
      --ease: 300ms ease;
      --font: "Source Han Sans SC", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
    }
    *, *::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: 1.75;
      color: var(--c-text);
      background: var(--c-bg);
      -webkit-font-smoothing: antialiased;
    }
    img { max-width: 100%; height: auto; display: block; }
    a { color: var(--c-primary); text-decoration: none; transition: color var(--ease), background var(--ease), transform var(--ease), box-shadow var(--ease), border-color var(--ease); }
    a:hover { color: var(--c-primary-dark); }
    a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
      outline: 2px solid var(--c-primary);
      outline-offset: 2px;
    }
    button, input, select, textarea { font-family: inherit; font-size: inherit; }
    button { cursor: pointer; }
    h1, h2, h3, h4, p { margin: 0; }
    ul, ol { margin: 0; padding: 0; list-style: none; }
    table { border-collapse: collapse; width: 100%; }
    .skip {
      position: absolute; left: 16px; top: -48px; z-index: 2000;
      background: var(--c-amber); color: #fff; padding: 8px 14px; border-radius: 8px;
    }
    .skip:focus { top: 8px; }
    .container { width: min(100% - 40px, var(--container)); margin: 0 auto; }
    .num { font-variant-numeric: tabular-nums; font-weight: 700; letter-spacing: -.02em; }
    .visually-hidden {
      position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
      overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0;
    }

    /* Header */
    .site-header {
      position: sticky; top: 0; z-index: 1000;
      background: #fff;
      border-bottom: 1px solid var(--c-split);
      transition: box-shadow var(--ease);
    }
    .site-header.is-stuck { box-shadow: var(--shadow-nav); }
    .topbar {
      height: var(--header-top);
      background: var(--c-primary-light);
      border-bottom: 4px solid var(--c-primary);
      display: flex; align-items: center;
      font-size: 12.5px; color: var(--c-muted);
    }
    .topbar .container {
      display: grid; grid-template-columns: 1.1fr 1.4fr auto;
      align-items: center; gap: 16px;
    }
    .topbar a { color: var(--c-primary-dark); font-weight: 600; }
    .topbar a:hover { color: var(--c-primary); }
    .topbar-left, .topbar-trust, .topbar-actions { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }
    .topbar-trust { justify-content: center; }
    .trust-mini { display: inline-flex; align-items: center; gap: 6px; color: var(--c-text); }
    .trust-mini svg { width: 14px; height: 14px; flex: none; }
    .topbar-actions { justify-content: flex-end; }
    .topbar-actions a {
      display: inline-flex; align-items: center; height: 28px; padding: 0 10px;
      border-radius: 8px; font-weight: 600;
    }
    .topbar-actions .ghost { color: var(--c-primary-dark); }
    .topbar-actions .solid {
      background: var(--c-primary); color: #fff;
    }
    .topbar-actions .solid:hover { background: var(--c-primary-dark); color: #fff; }
    .site-header.is-stuck .topbar { height: 36px; }
    .site-header.is-stuck .topbar-trust { display: none; }

    .nav-main { height: var(--header-main); display: flex; align-items: center; background: #fff; }
    .nav-main .container {
      display: grid; grid-template-columns: auto 1fr auto;
      align-items: center; gap: 24px; height: 100%;
    }
    .brand {
      display: flex; align-items: center; gap: 10px; color: var(--c-text);
    }
    .brand:hover { color: var(--c-primary-dark); }
    .brand-mark {
      width: 46px; height: 46px; border-radius: 12px;
      background: var(--c-primary-light);
      display: grid; place-items: center; flex: none;
      border: 1px solid #d5e4f0;
    }
    .brand-mark svg { width: 32px; height: 22px; }
    .brand-name { font-size: 18px; font-weight: 700; line-height: 1.2; letter-spacing: .02em; }
    .brand-sub { display: block; font-size: 12px; color: var(--c-muted); font-weight: 500; margin-top: 2px; letter-spacing: .08em; }
    .nav-links { display: flex; align-items: center; justify-content: center; gap: 22px; }
    .nav-links a {
      color: var(--c-text); font-size: 15px; font-weight: 600; position: relative; padding: 6px 0;
    }
    .nav-links a::after {
      content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 2px;
      background: var(--c-primary); transform: scaleX(0); transform-origin: left; transition: transform var(--ease);
    }
    .nav-links a:hover, .nav-links a.is-active { color: var(--c-primary); }
    .nav-links a:hover::after, .nav-links a.is-active::after { transform: scaleX(1); }
    .nav-cta { display: flex; align-items: center; gap: 10px; }
    .btn {
      display: inline-flex; align-items: center; justify-content: center; gap: 8px;
      min-height: 44px; padding: 0 18px; border-radius: 12px; border: 1px solid transparent;
      font-weight: 700; letter-spacing: .02em; transition: var(--ease);
      white-space: nowrap;
    }
    .btn-primary { background: var(--c-primary); color: #fff; }
    .btn-primary:hover { background: #275f8f; color: #fff; transform: translateY(-1px); }
    .btn-primary:active { transform: translateY(0); background: var(--c-primary-dark); }
    .btn-ghost { background: transparent; color: var(--c-primary-dark); border-color: #b9d0e3; }
    .btn-ghost:hover { background: var(--c-primary-light); color: var(--c-primary-dark); border-color: var(--c-primary); }
    .btn-amber { background: var(--c-amber); color: #fff; }
    .btn-amber:hover { background: var(--c-amber-dark); color: #fff; transform: translateY(-1px); }
    .btn-amber:active { transform: translateY(0); }
    .icon-btn {
      width: 44px; height: 44px; border: 1px solid var(--c-split); background: #fff;
      border-radius: 12px; display: none; align-items: center; justify-content: center; color: var(--c-text);
    }
    .icon-btn:hover { border-color: var(--c-primary); color: var(--c-primary); }
    .hamburger span {
      display: block; width: 18px; height: 2px; background: currentColor; margin: 4px 0; border-radius: 2px;
      transition: var(--ease);
    }
    .drawer {
      position: fixed; inset: 0; background: #fff; z-index: 1200;
      transform: translateX(100%); transition: transform 280ms ease; overflow: auto;
      padding: 20px 20px 40px;
    }
    .drawer.is-open { transform: none; }
    .drawer-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 24px; }
    .drawer-meta { display: grid; gap: 8px; padding: 16px; background: var(--c-primary-light); border-radius: var(--radius); margin-bottom: 20px; font-size: 14px; }
    .drawer-trust { display: flex; flex-wrap: wrap; gap: 8px; margin: 12px 0 22px; }
    .drawer-trust span {
      display: inline-flex; align-items: center; gap: 6px; background: #fff; border: 1px solid var(--c-split);
      border-radius: 999px; padding: 6px 10px; font-size: 13px;
    }
    .drawer-links { display: grid; gap: 6px; }
    .drawer-links a {
      display: flex; align-items: center; min-height: 48px; padding: 0 14px;
      border-radius: 12px; color: var(--c-text); font-weight: 700; background: var(--c-bg);
    }
    .drawer-links a:hover, .drawer-links a:active { background: var(--c-primary-light); color: var(--c-primary-dark); }
    .drawer-cta { display: grid; gap: 10px; margin-top: 22px; }
    body.nav-open { overflow: hidden; }

    /* Hero */
    #hero {
      display: grid; min-height: 640px; color: var(--c-inverse);
      isolation: isolate;
    }
    .hero-slides, .hero-panel { grid-area: 1 / 1; }
    .hero-slides { position: relative; min-height: 640px; overflow: hidden; background: var(--c-dark); }
    .hero-slide {
      position: absolute; inset: 0; opacity: 0; visibility: hidden;
      transition: opacity 600ms ease, visibility 600ms ease;
    }
    .hero-slide.is-active { opacity: 1; visibility: visible; z-index: 1; }
    .hero-slide img { width: 100%; height: 100%; object-fit: cover; }
    .hero-slide::after {
      content: ""; position: absolute; inset: 0;
      background: linear-gradient(90deg, rgba(23,50,74,.88) 0%, rgba(23,50,74,.62) 42%, rgba(23,50,74,.28) 100%);
    }
    .hero-panel {
      position: relative; z-index: 2; display: flex; flex-direction: column; justify-content: center;
      padding: 72px 0 88px;
    }
    .hero-grid {
      display: grid; grid-template-columns: 1.15fr .85fr; gap: 40px; align-items: center;
    }
    .hero-kicker {
      display: inline-flex; align-items: center; gap: 8px;
      font-size: 13px; letter-spacing: .12em; color: #dbeaf6; margin-bottom: 14px; font-weight: 600;
    }
    .hero-kicker i { width: 18px; height: 2px; background: var(--c-amber); display: inline-block; }
    .hero-copy h1, .hero-copy .slide-title {
      font-size: 44px; line-height: 1.22; font-weight: 700; letter-spacing: .02em; margin-bottom: 16px;
    }
    .hero-lead { font-size: 16px; line-height: 1.8; color: #e7eef4; max-width: 38em; margin-bottom: 22px; }
    .hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 22px; }
    .hero-caps { display: flex; flex-wrap: wrap; gap: 8px; }
    .cap {
      display: inline-flex; align-items: center; gap: 6px;
      min-height: 32px; padding: 0 12px; border-radius: 999px;
      background: rgba(255,255,255,.12); border: 1px solid rgba(255,255,255,.18);
      font-size: 13px; color: #fff;
    }
    .cap b { font-variant-numeric: tabular-nums; color: #ffd399; }
    .shortcut-grid {
      display: grid; grid-template-columns: 1fr 1fr; gap: 12px;
      background: rgba(255,255,255,.08); border: 1px solid rgba(255,255,255,.14);
      border-radius: 16px; padding: 16px; backdrop-filter: blur(6px);
    }
    .shortcut {
      display: grid; gap: 4px; background: #fff; color: var(--c-text);
      border-radius: 12px; padding: 14px 14px 12px; min-height: 92px;
      box-shadow: var(--shadow);
    }
    .shortcut:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); color: var(--c-text); }
    .shortcut strong { font-size: 15px; }
    .shortcut span { font-size: 13px; color: var(--c-muted); line-height: 1.5; }
    .hero-ctrl {
      position: absolute; left: 0; right: 0; bottom: 0; z-index: 3;
      display: flex; align-items: center; gap: 12px;
      width: min(100% - 40px, var(--container)); margin: 0 auto; padding-bottom: 18px;
    }
    .hero-arrows { display: flex; gap: 8px; }
    .hero-arrows button, .slide-dots button {
      width: 44px; height: 44px; border-radius: 12px; border: 1px solid rgba(255,255,255,.25);
      background: rgba(23,50,74,.35); color: #fff; display: grid; place-items: center;
    }
    .hero-arrows button:hover, .slide-dots button:hover { background: rgba(23,50,74,.6); }
    .progress {
      flex: 1; height: 3px; background: rgba(255,255,255,.22); border-radius: 99px; overflow: hidden;
    }
    .progress > i {
      display: block; height: 100%; width: 0; background: var(--c-amber);
      transform-origin: left;
    }
    .slide-dots { display: flex; gap: 6px; }
    .slide-dots button { width: 10px; height: 10px; border-radius: 50%; padding: 0; min-height: auto; }
    .slide-dots button.is-active { background: var(--c-amber); border-color: var(--c-amber); }

    /* Shared sections */
    .section { padding: var(--space-section) 0; }
    .section-head { margin-bottom: 36px; max-width: 760px; }
    .section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
    .eyebrow {
      display: inline-flex; align-items: center; gap: 8px;
      color: var(--c-primary); font-size: 13px; font-weight: 700; letter-spacing: .08em; margin-bottom: 10px;
    }
    h2 { font-size: 30px; line-height: 1.3; letter-spacing: .01em; margin-bottom: 12px; }
    h3 { font-size: 19px; line-height: 1.4; }
    .section-desc { color: var(--c-muted); font-size: 16px; line-height: 1.8; }
    .bg-white { background: #fff; }
    .bg-soft { background: var(--c-bg); }
    .card {
      background: var(--c-card); border: 1px solid var(--c-split); border-radius: var(--radius);
      box-shadow: var(--shadow); transition: transform var(--ease), box-shadow var(--ease);
    }
    .card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
    .link-mini { font-size: 14px; font-weight: 700; color: var(--c-primary); }
    .link-mini:hover { color: var(--c-primary-dark); }

    /* Metrics */
    #metrics { background: var(--c-bg); }
    .metrics-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
    .metric {
      padding: 26px 24px 22px; background: #fff; border-radius: var(--radius);
      box-shadow: var(--shadow); border: 1px solid var(--c-split);
    }
    .metric:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
    .metric .num { font-size: 40px; color: var(--c-primary); line-height: 1.1; }
    .metric .unit { font-size: 14px; font-weight: 600; margin-left: 4px; color: var(--c-primary-dark); }
    .metric h3 { margin: 10px 0 8px; font-size: 16px; }
    .metric p { font-size: 13px; color: var(--c-muted); line-height: 1.6; }

    /* Intro */
    .intro-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 40px; align-items: center; }
    .intro-photo { position: relative; border-radius: 16px; overflow: hidden; min-height: 420px; box-shadow: var(--shadow); }
    .intro-photo img { width: 100%; height: 100%; object-fit: cover; position: absolute; inset: 0; min-height: 420px; }
    .intro-badge {
      position: absolute; left: 16px; bottom: 16px; background: #fff; color: var(--c-text);
      border-radius: 12px; padding: 10px 14px; font-size: 13px; font-weight: 700; box-shadow: var(--shadow);
    }
    .intro-badge b { color: var(--c-green); display: block; font-size: 12px; letter-spacing: .08em; }
    .steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; margin: 22px 0; }
    .step {
      background: var(--c-primary-light); border-radius: 12px; padding: 12px 10px; text-align: center;
    }
    .step b { display: block; color: var(--c-primary-dark); font-size: 18px; font-variant-numeric: tabular-nums; }
    .step span { font-size: 13px; color: var(--c-muted); }
    .verify {
      background: var(--c-green-soft); border: 1px solid #c7ead9; border-radius: 14px;
      padding: 16px 18px; color: #215c40; font-size: 14.5px; line-height: 1.75;
    }
    .partner-row { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; }
    .partner-row span {
      font-size: 13px; background: #fff; border: 1px solid var(--c-split); border-radius: 999px; padding: 6px 12px; color: var(--c-muted);
    }

    /* Matrix */
    .matrix-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
    .svc { padding: 24px; height: 100%; display: flex; flex-direction: column; }
    .svc-icon {
      width: 44px; height: 44px; border-radius: 12px; background: var(--c-primary-light);
      display: grid; place-items: center; margin-bottom: 14px; color: var(--c-primary-dark);
    }
    .svc h3 { margin-bottom: 10px; }
    .svc ul { display: grid; gap: 6px; margin-bottom: 16px; }
    .svc li {
      position: relative; padding-left: 16px; font-size: 14px; color: var(--c-muted); line-height: 1.6;
    }
    .svc li::before { content: ""; position: absolute; left: 0; top: .62em; width: 7px; height: 7px; border-radius: 50%; background: var(--c-primary); }
    .svc .link-mini { margin-top: auto; }

    /* Plans */
    .plans-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
    .plan { overflow: hidden; display: flex; flex-direction: column; }
    .plan-cover { position: relative; height: 210px; overflow: hidden; }
    .plan-cover img { width: 100%; height: 100%; object-fit: cover; }
    .plan-tag {
      position: absolute; left: 12px; top: 12px; background: rgba(23,50,74,.86); color: #fff;
      font-size: 12px; padding: 4px 10px; border-radius: 999px;
    }
    .plan-body { padding: 20px 20px 22px; display: flex; flex-direction: column; gap: 8px; flex: 1; }
    .plan-meta { display: flex; flex-wrap: wrap; gap: 8px; font-size: 13px; color: var(--c-muted); }
    .plan-meta b { color: var(--c-primary-dark); font-weight: 700; }
    .chip {
      display: inline-flex; align-items: center; background: var(--c-primary-light); color: var(--c-primary-dark);
      border-radius: 999px; padding: 2px 10px; font-size: 12px; font-weight: 700;
    }

    /* Compare */
    .compare-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
    .cmp { padding: 22px 20px; }
    .cmp.win {
      background: var(--c-primary-light); border-color: #c5d9ea;
      box-shadow: 0 12px 32px rgba(31,78,121,.12);
    }
    .cmp-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 14px; gap: 8px; }
    .cmp .flag {
      background: var(--c-amber); color: #fff; font-size: 12px; font-weight: 700;
      border-radius: 999px; padding: 3px 10px;
    }
    .cmp dl { display: grid; gap: 10px; }
    .cmp dt { font-size: 13px; color: var(--c-muted); }
    .cmp dd { font-size: 15px; font-weight: 600; margin: 0; display: flex; gap: 8px; align-items: flex-start; }
    .ok { color: var(--c-green); }
    .no { color: #9aa5ad; }

    /* Cases */
    #cases {
      background: var(--c-dark) url("/assets/images/4f2bab3178747b8b.webp") center/cover;
      color: var(--c-inverse); position: relative;
    }
    #cases::before {
      content: ""; position: absolute; inset: 0;
      background:
        linear-gradient(180deg, rgba(23,50,74,.92), rgba(18,40,60,.94)),
        repeating-linear-gradient(90deg, transparent 0 46px, rgba(255,255,255,.03) 46px 47px);
    }
    #cases .container { position: relative; z-index: 1; }
    #cases .section-desc { color: #c9d6e2; }
    .cases-layout { display: grid; grid-template-columns: .7fr 1.3fr; gap: 28px; align-items: stretch; }
    .case-index {
      background: rgba(255,255,255,.04); border: 1px solid rgba(255,255,255,.08);
      border-radius: 16px; padding: 28px 24px; display: flex; flex-direction: column; justify-content: center;
    }
    .case-index .num { font-size: 72px; color: var(--c-amber); line-height: 1; }
    .case-index p { color: #d5e0ea; margin-top: 12px; }
    .case-cards { display: grid; gap: 14px; }
    .case-card {
      background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.1);
      border-radius: 14px; padding: 18px 18px 16px; display: grid; grid-template-columns: 96px 1fr; gap: 14px;
    }
    .case-card:hover { transform: translateY(-4px); background: rgba(255,255,255,.09); }
    .case-card img { width: 96px; height: 84px; object-fit: cover; border-radius: 10px; }
    .case-card h3 { font-size: 18px; margin-bottom: 6px; }
    .case-card p { color: #c9d6e2; font-size: 14px; line-height: 1.65; }
    .case-card .result { color: #ffd399; font-size: 13px; font-weight: 700; margin-top: 6px; }

    /* Milestones */
    .timeline {
      display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; position: relative;
    }
    .timeline::before {
      content: ""; position: absolute; left: 8%; right: 8%; top: 23px; height: 2px; background: #d3e2ee;
    }
    .ms { position: relative; background: #fff; border-radius: 14px; padding: 20px 16px 18px; box-shadow: var(--shadow); border: 1px solid var(--c-split); }
    .ms:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
    .dot {
      width: 14px; height: 14px; border-radius: 50%; background: var(--c-amber);
      border: 3px solid #fff; box-shadow: 0 0 0 2px var(--c-amber);
      margin-bottom: 14px;
    }
    .ms h3 { font-size: 16px; margin-bottom: 8px; }
    .ms p { font-size: 14px; color: var(--c-muted); line-height: 1.65; }

    /* Stories */
    .stories-grid { display: grid; grid-template-columns: 7fr 5fr; gap: 18px; }
    .story-main { overflow: hidden; display: grid; grid-template-columns: 1.05fr .95fr; min-height: 360px; }
    .story-main img { width: 100%; height: 100%; object-fit: cover; min-height: 360px; }
    .story-main .txt { padding: 28px 26px; display: flex; flex-direction: column; justify-content: center; }
    .story-side { display: grid; gap: 18px; }
    .story-mini { display: grid; grid-template-columns: 132px 1fr; overflow: hidden; }
    .story-mini img { width: 100%; height: 100%; object-fit: cover; min-height: 150px; }
    .story-mini .txt { padding: 16px 16px 14px; }
    .tagline { font-size: 13px; color: var(--c-primary); font-weight: 700; margin-bottom: 8px; }
    .story-mini h3, .story-main h3 { margin-bottom: 8px; }
    .story-mini p, .story-main p { color: var(--c-muted); font-size: 14.5px; line-height: 1.7; }

    /* Stats */
    #stats { background: var(--c-primary-dark); color: #fff; padding: 48px 0; }
    .stats-row { display: grid; grid-template-columns: repeat(5, 1fr); gap: 12px; text-align: center; }
    .stat .num { font-size: 34px; color: #ffd399; }
    .stat span { display: block; font-size: 13px; color: #d7e4ef; margin-top: 4px; }

    /* Reviews */
    .review-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
    .review { padding: 22px 22px 18px; }
    .stars { color: var(--c-amber); letter-spacing: 2px; font-size: 14px; margin-bottom: 8px; }
    .quote-mark { font-size: 28px; color: #c5d8e8; line-height: 1; }
    .review p { color: var(--c-text); margin: 6px 0 14px; }
    .review-user { display: flex; justify-content: space-between; align-items: center; gap: 8px; font-size: 13px; color: var(--c-muted); }
    .review-user b { color: var(--c-text); }

    /* News */
    .news-grid { display: grid; grid-template-columns: 1.2fr .8fr; gap: 18px; }
    .news-feature { overflow: hidden; display: flex; flex-direction: column; }
    .news-feature img { width: 100%; height: 280px; object-fit: cover; }
    .news-feature .txt, .news-item .txt { padding: 18px 20px 20px; }
    .news-list { display: grid; gap: 14px; }
    .news-item { display: grid; grid-template-columns: 132px 1fr; overflow: hidden; }
    .news-item img { width: 100%; height: 100%; object-fit: cover; min-height: 112px; }
    .rank { display: inline-flex; width: 22px; height: 22px; border-radius: 6px; background: var(--c-primary); color: #fff; font-size: 12px; font-weight: 700; align-items: center; justify-content: center; margin-right: 6px; }
    .news-item h3, .news-feature h3 { font-size: 17px; margin: 6px 0; }
    .news-item p, .news-feature p { font-size: 14px; color: var(--c-muted); line-height: 1.65; }
    .news-more { margin-top: 18px; }

    /* Guarantee */
    .g-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
    .g-card { padding: 22px 18px; }
    .g-card h3 { margin: 10px 0; }
    .g-card p { font-size: 14px; color: var(--c-muted); line-height: 1.7; }
    .badge-row { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 12px; }
    .badge {
      font-size: 12px; background: var(--c-green-soft); color: #1f6d48; border-radius: 999px; padding: 3px 8px; font-weight: 700;
    }

    /* Quick QA */
    .qa-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
    .qa-chip {
      display: block; width: 100%; text-align: left; background: #fff; border: 1px solid var(--c-split);
      border-radius: 14px; padding: 16px 16px 14px; box-shadow: var(--shadow); min-height: 88px;
    }
    .qa-chip:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); border-color: #c5d9ea; }
    .qa-chip strong { display: block; margin-bottom: 6px; color: var(--c-text); }
    .qa-chip span { font-size: 13px; color: var(--c-muted); }

    /* FAQ */
    .faq-list { display: grid; gap: 10px; }
    .faq-item { background: #fff; border: 1px solid var(--c-split); border-radius: 14px; overflow: hidden; box-shadow: var(--shadow); }
    .faq-item button {
      width: 100%; background: #fff; border: 0; text-align: left;
      min-height: 58px; 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: transform var(--ease);
    }
    .faq-item button[aria-expanded="true"] { background: var(--c-primary-light); }
    .faq-item button[aria-expanded="true"]::after { transform: translateY(-20%) rotate(225deg); }
    .faq-item .panel {
      display: none; padding: 0 18px 16px; color: var(--c-muted); line-height: 1.8;
    }
    .faq-item.is-open .panel { display: block; }

    /* Quote */
    #quote { background: var(--c-bg); }
    .quote-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 22px; align-items: stretch; }
    .form-card { padding: 28px 26px; }
    .form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
    .field { display: grid; gap: 6px; }
    .field.full { grid-column: 1 / -1; }
    label { font-size: 14px; font-weight: 700; }
    input, select, textarea {
      width: 100%; border: 1px solid #d3deE8; border-radius: 12px; min-height: 46px;
      padding: 10px 12px; background: #fff; color: var(--c-text);
      transition: border-color var(--ease), background var(--ease), box-shadow var(--ease);
    }
    textarea { min-height: 96px; resize: vertical; }
    input:focus, select:focus, textarea:focus { background: var(--c-primary-light); border-color: var(--c-primary); }
    .error { color: #b45309; font-size: 13px; min-height: 18px; }
    .form-ok {
      display: none; margin-top: 12px; background: var(--c-green-soft); color: #1f6d48;
      border-radius: 12px; padding: 12px 14px; font-weight: 700;
    }
    .form-ok.is-show { display: block; }
    .cta-panel {
      background: var(--c-dark) url("/assets/images/26335a1270ce4b5e.jpg") center/cover;
      color: #fff; border-radius: 16px; padding: 32px 28px; position: relative; overflow: hidden; min-height: 100%;
    }
    .cta-panel::before {
      content: ""; position: absolute; inset: 0; background: linear-gradient(160deg, rgba(23,50,74,.92), rgba(31,78,121,.78));
    }
    .cta-panel > * { position: relative; z-index: 1; }
    .cta-panel h2 { color: #fff; }
    .cta-panel p { color: #d5e0ea; margin-bottom: 18px; }
    .cta-phone { font-size: 32px; font-weight: 700; font-variant-numeric: tabular-nums; color: #ffd399; display: inline-block; margin: 8px 0 14px; }
    .cta-list { display: grid; gap: 10px; margin: 18px 0 8px; }
    .cta-list li { display: flex; gap: 8px; align-items: flex-start; color: #e7eef4; font-size: 14.5px; }
    .cta-list svg { flex: none; margin-top: 4px; }

    /* Footer */
    .site-footer { background: var(--c-primary-dark); color: #d7e4ef; padding: 56px 0 24px; }
    .foot-grid { display: grid; grid-template-columns: 1.3fr .8fr .9fr 1fr; gap: 28px; margin-bottom: 28px; }
    .site-footer a { color: #d7e4ef; }
    .site-footer a:hover { color: #fff; }
    .foot-brand .brand { color: #fff; margin-bottom: 12px; }
    .foot-brand p { font-size: 14px; line-height: 1.8; max-width: 36em; }
    .site-footer h3 { color: #fff; font-size: 16px; margin-bottom: 12px; }
    .site-footer li + li { margin-top: 8px; }
    .foot-bottom {
      border-top: 1px solid rgba(255,255,255,.12); padding-top: 16px;
      display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; font-size: 13px;
    }

    @media (max-width: 1280px) {
      .hero-copy h1, .hero-copy .slide-title { font-size: 40px; }
    }
    @media (max-width: 1100px) {
      .nav-links { gap: 14px; }
      .nav-links a { font-size: 14px; }
      .metrics-grid, .g-grid, .stats-row { grid-template-columns: repeat(2, 1fr); }
      .timeline { grid-template-columns: 1fr 1fr; }
      .timeline::before { display: none; }
      .story-main { grid-template-columns: 1fr; }
      .story-main img { min-height: 220px; }
      .cases-layout { grid-template-columns: 1fr; }
      .foot-grid { grid-template-columns: 1fr 1fr; }
    }
    @media (max-width: 1024px) {
      .hero-grid, .intro-grid, .quote-grid, .news-grid, .stories-grid { grid-template-columns: 1fr; }
      .shortcut-grid { grid-template-columns: repeat(3, 1fr); }
      .matrix-grid { grid-template-columns: 1fr 1fr; }
      .plans-grid, .compare-grid { grid-template-columns: 1fr; }
      .qa-grid { grid-template-columns: 1fr 1fr; }
      h2 { font-size: 26px; }
      .section { padding: 80px 0; }
    }
    @media (max-width: 768px) {
      .topbar, .nav-links, .nav-cta { display: none; }
      .icon-btn { display: grid; }
      .nav-main { height: 64px; }
      .nav-main .container { grid-template-columns: 1fr auto auto; gap: 8px; }
      .brand-name { font-size: 16px; }
      #hero, .hero-slides { min-height: 0; }
      .hero-panel { padding: 36px 0 70px; }
      .hero-copy h1, .hero-copy .slide-title { font-size: 30px; }
      .shortcut-grid { grid-template-columns: 1fr 1fr; }
      .metrics-grid, .matrix-grid, .g-grid, .stats-row, .review-grid, .qa-grid, .form-grid { grid-template-columns: 1fr 1fr; }
      .steps { grid-template-columns: 1fr 1fr; }
      .news-item, .story-mini, .case-card { grid-template-columns: 96px 1fr; }
      .section { padding: var(--space-section-m) 0; }
      .container { width: min(100% - 28px, var(--container)); }
      .case-index .num { font-size: 56px; }
    }
    @media (max-width: 520px) {
      .metrics-grid, .matrix-grid, .stats-row, .review-grid, .qa-grid, .form-grid, .g-grid, .foot-grid, .steps {
        grid-template-columns: 1fr;
      }
      .hero-copy h1, .hero-copy .slide-title { font-size: 28px; }
      h2 { font-size: 22px; }
      .metric .num, .stat .num { font-size: 32px; }
      .cta-phone { font-size: 26px; }
      .news-item, .story-mini { grid-template-columns: 1fr; }
      .news-item img, .story-mini img { height: 160px; min-height: 160px; }
      .hero-actions .btn { width: 100%; }
    }
    @media (prefers-reduced-motion: reduce) {
      html { scroll-behavior: auto; }
      *, *::before, *::after { transition: none !important; animation: none !important; }
    }

/* roulang page: index */
:root {
      --brand: #2C6AA0;
      --brand-hover: #245887;
      --brand-active: #1F4E7A;
      --brand-soft: #E8F1F8;
      --asphalt: #5B6773;
      --silver: #C5CCD3;
      --amber: #D97706;
      --danger: #C2410C;
      --ok: #2F6F4E;
      --bg: #F4F7FA;
      --white: #FFFFFF;
      --steel: #1F3347;
      --footer: #243140;
      --text: #1C2833;
      --muted: #5B6773;
      --border: #E6EEF4;
      --radius: 12px;
      --radius-sm: 8px;
      --shadow: 0 8px 24px rgba(31, 51, 71, .08);
      --shadow-hover: 0 12px 28px rgba(31, 51, 71, .12);
      --header-h: 108px;
      --space-d: 104px;
      --space-m: 56px;
    }
    *, *::before, *::after { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    body {
      margin: 0;
      font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
      color: var(--text);
      background: var(--bg);
      font-size: 16px;
      line-height: 1.75;
      overflow-x: hidden;
    }
    img { max-width: 100%; height: auto; display: block; }
    a { color: var(--brand); text-decoration: none; transition: color .2s ease, opacity .2s ease; }
    a:hover { color: var(--brand-hover); }
    button, input, select, textarea { font-family: inherit; }
    button { cursor: pointer; }
    h1, h2, h3, h4 { margin: 0; color: var(--text); line-height: 1.3; font-weight: 700; }
    p { margin: 0; }
    ul { margin: 0; padding: 0; list-style: none; }
    :focus-visible {
      outline: 2px solid var(--brand);
      outline-offset: 2px;
    }
    .container {
      width: min(1240px, calc(100% - 40px));
      margin: 0 auto;
    }
    .site-header {
      position: relative;
      z-index: 80;
    }
    .topbar {
      background: #EAF2F8;
      color: var(--asphalt);
      font-size: 13px;
      min-height: 36px;
    }
    .topbar-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      min-height: 36px;
    }
    .topbar a { color: var(--asphalt); }
    .topbar a:hover { color: var(--brand); }
    .topbar-left, .topbar-right {
      display: flex;
      align-items: center;
      flex-wrap: wrap;
      gap: 8px 18px;
    }
    .topbar-quote {
      color: var(--brand) !important;
      font-weight: 600;
    }
    .mainnav {
      background: #fff;
      border-bottom: 1px solid var(--border);
      min-height: 72px;
    }
    .mainnav.is-stuck {
      position: sticky;
      top: 0;
      z-index: 90;
      box-shadow: var(--shadow);
    }
    .mainnav-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 20px;
      min-height: 72px;
    }
    .brand {
      display: flex;
      align-items: center;
      gap: 10px;
      color: var(--text) !important;
      flex-shrink: 0;
    }
    .brand-mark {
      width: 40px;
      height: 40px;
      border-radius: 8px;
      background: var(--brand);
      display: grid;
      place-items: center;
      color: #fff;
    }
    .brand-name {
      font-size: 18px;
      font-weight: 700;
      letter-spacing: .02em;
    }
    .nav-links {
      display: flex;
      align-items: center;
      gap: 4px 22px;
    }
    .nav-links a {
      position: relative;
      color: var(--text);
      font-size: 15px;
      font-weight: 500;
      padding: 10px 0;
      min-height: 44px;
      display: inline-flex;
      align-items: center;
    }
    .nav-links a:hover { color: var(--brand); }
    .nav-links a.is-active { color: var(--brand); }
    .nav-links a.is-active::after {
      content: "";
      position: absolute;
      left: 0;
      right: 0;
      bottom: 6px;
      height: 2px;
      background: var(--brand);
    }
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-height: 44px;
      padding: 0 18px;
      border-radius: 8px;
      font-weight: 600;
      font-size: 15px;
      border: 1px solid transparent;
      transition: background .2s ease, color .2s ease, border-color .2s ease, transform .15s ease, box-shadow .2s ease;
    }
    .btn:active { transform: translateY(1px); }
    .btn-primary {
      background: var(--brand);
      color: #fff !important;
      box-shadow: 0 6px 16px rgba(44, 106, 160, .22);
    }
    .btn-primary:hover { background: var(--brand-hover); }
    .btn-primary:active { background: var(--brand-active); }
    .btn-ghost {
      background: transparent;
      color: #fff !important;
      border-color: rgba(255,255,255,.7);
    }
    .btn-ghost:hover { background: rgba(255,255,255,.12); }
    .btn-line {
      background: #fff;
      color: var(--brand) !important;
      border-color: var(--brand);
    }
    .btn-line:hover { background: var(--brand-soft); }
    .nav-cta { flex-shrink: 0; }
    .menu-toggle {
      display: none;
      width: 44px;
      height: 44px;
      border: 0;
      background: transparent;
      padding: 0;
      align-items: center;
      justify-content: center;
    }
    .menu-toggle span,
    .menu-toggle span::before,
    .menu-toggle span::after {
      display: block;
      width: 20px;
      height: 2px;
      background: var(--text);
      position: relative;
      transition: transform .2s ease;
    }
    .menu-toggle span::before,
    .menu-toggle span::after {
      content: "";
      position: absolute;
      left: 0;
    }
    .menu-toggle span::before { top: -6px; }
    .menu-toggle span::after { top: 6px; }
    .section {
      padding: var(--space-d) 0;
    }
    .section-alt { background: #fff; }
    .section-soft { background: var(--bg); }
    .kicker {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      color: var(--brand);
      font-size: 13px;
      font-weight: 600;
      letter-spacing: .08em;
      margin-bottom: 10px;
    }
    .kicker::before {
      content: "";
      width: 18px;
      height: 2px;
      background: var(--brand);
    }
    .section-head {
      max-width: 760px;
      margin-bottom: 36px;
    }
    .section-head h2 {
      font-size: 30px;
      margin-bottom: 12px;
    }
    .lead {
      color: var(--muted);
      font-size: 16px;
      line-height: 1.8;
    }
    .card {
      background: #fff;
      border: 1px solid var(--border);
      border-radius: var(--radius);
      box-shadow: var(--shadow);
      transition: transform .2s ease, box-shadow .2s ease;
    }
    .card:hover {
      transform: translateY(-3px);
      box-shadow: var(--shadow-hover);
    }
    .badge {
      display: inline-flex;
      align-items: center;
      min-height: 26px;
      padding: 0 10px;
      border-radius: 6px;
      background: var(--brand-soft);
      color: var(--brand);
      font-size: 12px;
      font-weight: 600;
    }
    .badge-amber {
      background: #FEF3C7;
      color: var(--amber);
    }
    .text-link {
      color: var(--brand);
      font-weight: 600;
      font-size: 14px;
    }
    .text-link:hover { color: var(--brand-hover); }
    #hero {
      position: relative;
      min-height: clamp(560px, 78vh, 760px);
      color: #fff;
      overflow: hidden;
    }
    .hero-slides, .hero-slide {
      position: absolute;
      inset: 0;
    }
    .hero-slide {
      opacity: 0;
      transition: opacity .8s ease;
      background: #1F3347 center/cover no-repeat;
    }
    .hero-slide.is-on { opacity: 1; }
    .hero-slide::after {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(90deg, rgba(20,32,48,.82) 0%, rgba(20,32,48,.55) 48%, rgba(20,32,48,.28) 100%);
    }
    .hero-grid {
      position: relative;
      z-index: 2;
      display: grid;
      grid-template-columns: 1.15fr .85fr;
      gap: 36px;
      align-items: center;
      min-height: clamp(560px, 78vh, 760px);
      padding: 54px 0 72px;
    }
    .hero-copy h1 {
      color: #fff;
      font-size: clamp(32px, 4vw, 46px);
      font-weight: 700;
      margin: 8px 0 14px;
    }
    .hero-sub {
      font-size: 18px;
      color: #E8EEF4;
      margin-bottom: 16px;
    }
    .hero-intro {
      max-width: 640px;
      color: #D5DEE7;
      font-size: 16px;
      line-height: 1.85;
      margin-bottom: 24px;
    }
    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-bottom: 22px;
    }
    .trust-bar {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
    }
    .trust-bar span {
      display: inline-flex;
      align-items: center;
      min-height: 32px;
      padding: 0 10px;
      border-radius: 6px;
      background: rgba(255,255,255,.12);
      border: 1px solid rgba(255,255,255,.16);
      font-size: 12px;
      color: #F4F7FA;
    }
    .hero-quick {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 12px;
    }
    .quick-item {
      display: flex;
      flex-direction: column;
      justify-content: center;
      min-height: 92px;
      padding: 16px;
      border-radius: 12px;
      background: rgba(255,255,255,.94);
      color: var(--text);
      box-shadow: var(--shadow);
    }
    .quick-item:hover {
      transform: translateY(-2px);
      box-shadow: var(--shadow-hover);
      color: var(--text);
    }
    .quick-item strong {
      font-size: 15px;
      margin-bottom: 4px;
    }
    .quick-item span {
      font-size: 12px;
      color: var(--muted);
      line-height: 1.5;
    }
    .hero-controls {
      position: absolute;
      z-index: 3;
      left: 0;
      right: 0;
      bottom: 22px;
      display: flex;
      align-items: center;
      justify-content: space-between;
    }
    .hero-arrows { display: flex; gap: 8px; }
    .hero-nav-btn, .hero-pause {
      width: 44px;
      height: 44px;
      border: 1px solid rgba(255,255,255,.35);
      background: rgba(20,32,48,.35);
      color: #fff;
      border-radius: 8px;
      display: grid;
      place-items: center;
    }
    .hero-nav-btn:hover, .hero-pause:hover { background: rgba(20,32,48,.55); }
    .hero-dots { display: flex; gap: 8px; align-items: center; }
    .hero-dots button {
      width: 10px;
      height: 10px;
      border-radius: 50%;
      border: 0;
      background: rgba(255,255,255,.4);
      padding: 0;
      min-width: 44px;
      min-height: 44px;
      background-clip: content-box;
      padding: 17px;
    }
    .hero-dots button.is-on { background-color: #fff; }
    .metric-grid {
      display: grid;
      grid-template-columns: repeat(6, 1fr);
      gap: 18px;
    }
    .metric-card {
      background: #fff;
      border: 1px solid var(--border);
      border-radius: 12px;
      box-shadow: var(--shadow);
      padding: 22px 18px;
    }
    .metric-card b {
      display: block;
      font-size: 36px;
      line-height: 1.1;
      color: var(--brand);
      font-variant-numeric: tabular-nums;
      font-weight: 700;
    }
    .metric-card b span { font-size: 16px; margin-left: 2px; font-weight: 600; }
    .metric-card em {
      display: block;
      margin-top: 8px;
      font-style: normal;
      color: var(--text);
      font-size: 14px;
      font-weight: 600;
    }
    .metric-card small {
      display: block;
      margin-top: 4px;
      color: var(--muted);
      font-size: 12px;
      line-height: 1.5;
    }
    .intro-grid {
      display: grid;
      grid-template-columns: 5fr 7fr;
      gap: 40px;
      align-items: center;
    }
    .intro-photo {
      border-radius: 12px;
      overflow: hidden;
      box-shadow: var(--shadow);
      border: 1px solid var(--border);
    }
    .intro-photo img { width: 100%; height: 100%; object-fit: cover; min-height: 360px; }
    .spec-list { margin-top: 18px; display: grid; gap: 10px; }
    .spec-list li {
      display: grid;
      grid-template-columns: 16px 1fr;
      gap: 10px;
      color: var(--text);
      font-size: 15px;
    }
    .spec-list i {
      width: 8px;
      height: 8px;
      margin-top: 9px;
      border-radius: 50%;
      background: var(--brand);
    }
    .bento {
      display: grid;
      grid-template-columns: 1.25fr 1fr 1fr;
      grid-template-areas:
        "a b c"
        "a d e"
        "f f e";
      gap: 20px;
    }
    .bento article { padding: 22px; }
    .bento .s1 { grid-area: a; }
    .bento .s2 { grid-area: b; }
    .bento .s3 { grid-area: c; }
    .bento .s4 { grid-area: d; }
    .bento .s5 { grid-area: e; }
    .bento .s6 { grid-area: f; }
    .icon-line {
      width: 40px;
      height: 40px;
      border-radius: 8px;
      border: 1px solid var(--border);
      display: grid;
      place-items: center;
      margin-bottom: 14px;
      color: var(--brand);
      background: #F8FBFD;
    }
    .bento h3 { font-size: 20px; margin-bottom: 10px; }
    .bento li {
      position: relative;
      padding-left: 14px;
      margin-bottom: 6px;
      color: var(--muted);
      font-size: 14px;
      line-height: 1.65;
    }
    .bento li::before {
      content: "";
      position: absolute;
      left: 0;
      top: 10px;
      width: 6px;
      height: 1px;
      background: var(--brand);
    }
    .plans-grid {
      display: grid;
      grid-template-columns: 1.2fr .8fr;
      grid-template-rows: auto auto;
      gap: 20px;
    }
    .plan-card { overflow: hidden; }
    .plan-card img { width: 100%; height: 210px; object-fit: cover; }
    .plan-main img { height: 280px; }
    .plan-main { grid-row: 1 / 3; }
    .plan-body { padding: 20px 22px 22px; }
    .plan-body h3 { font-size: 22px; margin: 8px 0 10px; }
    .plan-body p { color: var(--muted); font-size: 14px; margin-bottom: 16px; }
    .compare-wrap {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 22px;
    }
    .compare-card { padding: 0; overflow: hidden; }
    .compare-card header {
      padding: 18px 22px;
      background: #F8FBFD;
      border-bottom: 1px solid var(--border);
    }
    .compare-card h3 { font-size: 18px; }
    .compare-row {
      display: grid;
      grid-template-columns: 1.1fr 1fr 1fr;
      gap: 8px;
      padding: 12px 22px;
      border-bottom: 1px solid var(--border);
      font-size: 14px;
    }
    .compare-row:last-child { border-bottom: 0; }
    .compare-row b { font-weight: 600; color: var(--asphalt); }
    .ok { color: var(--ok); font-weight: 600; }
    .no { color: var(--danger); font-weight: 600; }
    .timeline {
      display: grid;
      grid-template-columns: repeat(6, 1fr);
      gap: 16px;
      position: relative;
    }
    .timeline::before {
      content: "";
      position: absolute;
      left: 8%;
      right: 8%;
      top: 27px;
      height: 2px;
      background: repeating-linear-gradient(90deg, var(--brand) 0 12px, transparent 12px 22px);
      opacity: .35;
    }
    .step {
      position: relative;
      background: #fff;
      border: 1px solid var(--border);
      border-radius: 12px;
      box-shadow: var(--shadow);
      padding: 18px 16px 16px;
    }
    .step b {
      width: 36px;
      height: 36px;
      border-radius: 50%;
      background: var(--brand);
      color: #fff;
      display: grid;
      place-items: center;
      font-size: 14px;
      margin-bottom: 10px;
    }
    .step h3 { font-size: 16px; margin-bottom: 6px; }
    .step p { font-size: 13px; color: var(--muted); }
    .dark-band {
      background: var(--steel);
      color: #E8EEF4;
      padding: var(--space-d) 0;
    }
    .dark-band h2, .dark-band h3 { color: #fff; }
    .dark-band .lead { color: #C5D0DB; }
    .case-list { display: grid; gap: 24px; }
    .case-item {
      display: grid;
      grid-template-columns: 1.1fr .9fr;
      gap: 28px;
      align-items: center;
      background: rgba(255,255,255,.04);
      border: 1px solid rgba(255,255,255,.08);
      border-radius: 12px;
      overflow: hidden;
    }
    .case-item:nth-child(even) { grid-template-columns: .9fr 1.1fr; }
    .case-item:nth-child(even) .case-photo { order: 2; }
    .case-photo img { width: 100%; height: 280px; object-fit: cover; }
    .case-copy { padding: 28px 28px 28px 8px; }
    .case-item:nth-child(even) .case-copy { padding: 28px 8px 28px 28px; }
    .case-copy ul { margin-top: 14px; }
    .case-copy li { margin-bottom: 8px; color: #D5DEE7; font-size: 14px; }
    .stories-grid {
      display: grid;
      grid-template-columns: 1.2fr .8fr;
      gap: 20px;
    }
    .story-side { display: grid; gap: 20px; }
    .story-card { overflow: hidden; }
    .story-card img { width: 100%; height: 220px; object-fit: cover; }
    .story-main img { height: 320px; }
    .story-body { padding: 18px 20px 20px; }
    .story-body h3 { font-size: 18px; margin: 8px 0; }
    .story-body p { color: var(--muted); font-size: 14px; }
    .review-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 20px;
    }
    .review-card { padding: 22px; }
    .stars { color: var(--amber); letter-spacing: 2px; font-size: 14px; }
    .review-card p { margin: 10px 0 14px; color: var(--text); font-size: 15px; }
    .news-list { display: grid; gap: 16px; }
    .news-item {
      display: grid;
      grid-template-columns: 220px 1fr;
      gap: 20px;
      padding: 14px;
      align-items: center;
    }
    .news-item img { width: 100%; height: 128px; object-fit: cover; border-radius: 8px; }
    .news-item time { color: var(--muted); font-size: 13px; }
    .news-item h3 { font-size: 18px; margin: 6px 0; }
    .news-item p { color: var(--muted); font-size: 14px; }
    .guarantee-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 20px;
    }
    .g-item { padding: 22px; }
    .g-item h3 { font-size: 18px; margin: 10px 0 6px; }
    .g-item p { color: var(--muted); font-size: 14px; }
    .chip-row {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-bottom: 22px;
    }
    .chip {
      min-height: 40px;
      padding: 0 14px;
      border-radius: 8px;
      border: 1px solid var(--border);
      background: #fff;
      color: var(--text);
      font-size: 14px;
    }
    .chip.is-on, .chip:hover {
      border-color: var(--brand);
      color: var(--brand);
      background: var(--brand-soft);
    }
    .scene-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 18px;
    }
    .scene-card { padding: 20px; }
    .scene-card.is-dim { opacity: .45; }
    .scene-card h3 { font-size: 18px; margin: 8px 0; }
    .scene-card p { color: var(--muted); font-size: 14px; }
    .qa-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
    }
    .qa-item { padding: 18px 20px; }
    .qa-item h3 { font-size: 16px; margin-bottom: 8px; }
    .qa-item p { color: var(--muted); font-size: 14px; }
    .faq-list { display: grid; gap: 10px; }
    .faq-item {
      background: #fff;
      border: 1px solid var(--border);
      border-radius: 12px;
      box-shadow: var(--shadow);
      overflow: hidden;
    }
    .faq-item button {
      width: 100%;
      text-align: left;
      background: transparent;
      border: 0;
      min-height: 56px;
      padding: 14px 52px 14px 20px;
      font-size: 16px;
      font-weight: 600;
      position: relative;
    }
    .faq-item button::after {
      content: "";
      position: absolute;
      right: 22px;
      top: 50%;
      width: 10px;
      height: 10px;
      border-right: 2px solid var(--brand);
      border-bottom: 2px solid var(--brand);
      transform: translateY(-70%) rotate(45deg);
      transition: transform .2s ease;
    }
    .faq-item button[aria-expanded="true"]::after {
      transform: translateY(-20%) rotate(225deg);
    }
    .faq-panel {
      display: none;
      padding: 0 20px 18px;
      color: var(--muted);
      font-size: 15px;
    }
    .faq-item.is-open .faq-panel { display: block; }
    .quote-grid {
      display: grid;
      grid-template-columns: 1.2fr .8fr;
      gap: 24px;
      align-items: start;
    }
    .form-card, .quote-side { padding: 28px; }
    .form-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
    }
    .field { display: flex; flex-direction: column; gap: 6px; }
    .field.full { grid-column: 1 / -1; }
    label { font-size: 14px; font-weight: 600; }
    .req { color: var(--amber); margin-left: 2px; }
    input, select {
      height: 46px;
      border: 1px solid var(--border);
      border-radius: 8px;
      padding: 0 12px;
      background: #fff;
      color: var(--text);
      font-size: 15px;
    }
    input:focus, select:focus {
      border-color: var(--brand);
      box-shadow: 0 0 0 3px rgba(44,106,160,.12);
      outline: none;
    }
    .field-error { color: var(--danger); font-size: 12px; min-height: 16px; }
    .form-success {
      background: #ECF8F1;
      color: var(--ok);
      border: 1px solid #CDEBD8;
      border-radius: 8px;
      padding: 12px 14px;
      margin-bottom: 16px;
      font-size: 14px;
    }
    .submit-btn { width: 100%; height: 48px; }
    .quote-side {
      background: var(--steel);
      color: #E8EEF4;
    }
    .quote-side:hover { transform: none; }
    .quote-side h3 { color: #fff; font-size: 22px; margin-bottom: 12px; }
    .quote-side p { color: #C5D0DB; margin-bottom: 16px; }
    .quote-side a { color: #fff; font-weight: 700; font-size: 22px; }
    .site-footer {
      background: var(--footer);
      color: #C5D0DB;
      padding: 56px 0 24px;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: 1.3fr .8fr .9fr 1fr;
      gap: 28px;
      padding-bottom: 28px;
      border-bottom: 1px solid rgba(255,255,255,.08);
    }
    .site-footer h3 { color: #fff; font-size: 16px; margin-bottom: 12px; }
    .site-footer a { color: #C5D0DB; }
    .site-footer a:hover { color: #fff; }
    .footer-brand strong {
      display: block;
      color: #fff;
      font-size: 18px;
      margin-bottom: 10px;
    }
    .copy {
      padding-top: 18px;
      font-size: 13px;
      color: #8B98A6;
    }
    .lane {
      height: 6px;
      background: repeating-linear-gradient(90deg, #C5CCD3 0 18px, transparent 18px 32px);
      opacity: .45;
      margin: 8px 0 0;
    }
    @media (max-width: 1280px) {
      .metric-grid { grid-template-columns: repeat(3, 1fr); }
    }
    @media (max-width: 1024px) {
      .hero-grid, .intro-grid, .quote-grid, .stories-grid, .compare-wrap, .case-item, .case-item:nth-child(even) {
        grid-template-columns: 1fr;
      }
      .case-item:nth-child(even) .case-photo { order: 0; }
      .bento {
        grid-template-columns: 1fr 1fr;
        grid-template-areas:
          "a a"
          "b c"
          "d e"
          "f f";
      }
      .plans-grid, .scene-grid, .guarantee-grid { grid-template-columns: 1fr 1fr; }
      .plan-main { grid-row: auto; }
      .timeline { grid-template-columns: 1fr 1fr 1fr; }
      .timeline::before { display: none; }
      .footer-grid { grid-template-columns: 1fr 1fr; }
      .nav-links, .nav-cta { display: none; }
      .menu-toggle { display: inline-flex; }
      .nav-links.open, .nav-cta.open {
        display: flex;
      }
      .mainnav-inner { flex-wrap: wrap; }
      .nav-links.open {
        flex-direction: column;
        align-items: stretch;
        width: 100%;
        padding: 8px 0 16px;
        gap: 0;
      }
      .nav-links.open a {
        min-height: 44px;
        border-bottom: 1px solid var(--border);
      }
      .nav-cta.open { width: 100%; margin-bottom: 12px; }
      .nav-cta.open .btn { width: 100%; }
    }
    @media (max-width: 768px) {
      :root { --space-d: 64px; }
      .section-head h2 { font-size: 24px; }
      .topbar-left span.hide-sm { display: none; }
      .metric-grid, .qa-grid, .review-grid, .guarantee-grid, .scene-grid, .plans-grid, .bento, .timeline, .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
      .bento { grid-template-areas: "a a" "b c" "d e" "f f"; }
      .news-item { grid-template-columns: 1fr; }
      .form-grid { grid-template-columns: 1fr; }
      .hero-quick { grid-template-columns: 1fr 1fr; }
      .compare-row { grid-template-columns: 1fr; }
    }
    @media (max-width: 520px) {
      .container { width: min(1240px, calc(100% - 28px)); }
      .metric-grid, .qa-grid, .review-grid, .guarantee-grid, .scene-grid, .bento, .timeline, .footer-grid, .hero-quick {
        grid-template-columns: 1fr;
      }
      .bento { grid-template-areas: "a" "b" "c" "d" "e" "f"; }
      .hero-actions .btn { width: 100%; }
      .brand-name { font-size: 16px; }
      .hero-copy h1 { font-size: 30px; }
    }
    @media (prefers-reduced-motion: reduce) {
      html { scroll-behavior: auto; }
      .hero-slide, .card, .btn, .quick-item { transition: none; }
    }