/* roulang page: index */
:root {
      --ink: #141414;
      --jade: #2C6E5D;
      --jade-deep: #1f5346;
      --copper: #B0894F;
      --paper: #F4F1EB;
      --paper-2: #E8E2D8;
      --paper-3: #ddd6c8;
      --line: rgba(20, 20, 20, 0.08);
      --line-strong: rgba(20, 20, 20, 0.16);
      --night: #0F0F0F;
      --muted: #5c5852;
      --white: #f7f4ee;
      --radius: 2px;
      --header-top: 36px;
      --header-main: 80px;
      --header-compact: 64px;
      --ease: 200ms ease;
      --shadow-none: none;
    }
    *, *::before, *::after { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    body {
      margin: 0;
      font-family: "Noto Sans SC", sans-serif;
      font-size: 16px;
      line-height: 1.75;
      color: var(--ink);
      background: var(--paper);
      -webkit-font-smoothing: antialiased;
    }
    img { max-width: 100%; height: auto; display: block; }
    a { color: var(--jade); text-decoration: none; transition: color var(--ease); }
    a:hover { color: var(--jade-deep); }
    button, input, select, textarea { font-family: inherit; }
    button { cursor: pointer; }
    h1, h2, h3, .serif { font-family: "Noto Serif SC", serif; font-weight: 600; letter-spacing: -0.02em; line-height: 1.2; color: var(--ink); }
    p { margin: 0 0 1.15em; }
    p:last-child { margin-bottom: 0; }
    :focus-visible { outline: 2px solid var(--jade); outline-offset: 3px; }
    .container { width: min(1280px, calc(100% - 48px)); margin: 0 auto; }
    .section { padding: 112px 0; }
    .section-alt { background: var(--paper-2); }
    .section-head { max-width: 760px; margin-bottom: 56px; }
    .section-kicker {
      display: inline-flex; align-items: center; gap: 10px;
      font-size: 12px; letter-spacing: 0.18em; color: var(--copper);
      text-transform: uppercase; margin-bottom: 16px; font-weight: 600;
    }
    .section-kicker::before { content: ""; width: 22px; height: 1px; background: var(--copper); }
    .section-head h2 { font-size: 36px; margin: 0 0 18px; }
    .section-head .lead { color: var(--muted); font-size: 16px; line-height: 1.8; }
    .site-header {
      position: sticky; top: 0; z-index: 80;
      background: var(--paper);
      border-bottom: 1px solid var(--line);
      transition: box-shadow var(--ease), background var(--ease);
    }
    .site-header.is-compact { box-shadow: 0 1px 0 var(--line); }
    .topbar {
      height: var(--header-top);
      display: flex; align-items: center;
      background: #efeae1;
      font-size: 13px; color: var(--muted);
      overflow: hidden; transition: height 280ms ease, opacity 280ms ease;
    }
    .topbar-inner { display: flex; justify-content: space-between; align-items: center; width: min(1280px, calc(100% - 48px)); margin: 0 auto; gap: 16px; }
    .topbar a { color: var(--ink); }
    .topbar a:hover { color: var(--jade); }
    .site-header.is-compact .topbar { height: 0; opacity: 0; pointer-events: none; }
    .nav-bar {
      height: var(--header-main);
      display: flex; align-items: center;
      transition: height 280ms ease;
    }
    .site-header.is-compact .nav-bar { height: var(--header-compact); }
    .nav-inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; width: min(1280px, calc(100% - 48px)); margin: 0 auto; }
    .logo {
      display: flex; align-items: center; gap: 10px;
      color: var(--ink); flex-shrink: 0;
    }
    .logo:hover { color: var(--ink); }
    .logo-mark {
      width: 28px; height: 28px; border: 1px solid var(--ink);
      display: grid; place-items: center;
      font-family: "Noto Serif SC", serif; font-size: 14px; font-weight: 700;
    }
    .logo-text { font-family: "Noto Serif SC", serif; font-size: 18px; font-weight: 700; letter-spacing: 0.02em; line-height: 1.2; }
    .nav-links { display: flex; align-items: center; gap: 28px; list-style: none; margin: 0; padding: 0; }
    .nav-links a {
      position: relative; color: var(--ink); font-size: 14px; font-weight: 500;
      padding: 10px 0; min-height: 44px; display: inline-flex; align-items: center;
    }
    .nav-links a::after {
      content: ""; position: absolute; left: 0; bottom: 6px; height: 1px; width: 0;
      background: var(--ink); transition: width 280ms ease;
    }
    .nav-links a:hover::after, .nav-links a.is-active::after { width: 100%; }
    .nav-links a.is-active { color: var(--jade); }
    .nav-links a.is-active::after { background: var(--jade); }
    .btn {
      display: inline-flex; align-items: center; justify-content: center;
      min-height: 44px; padding: 0 22px; border-radius: var(--radius);
      font-size: 14px; font-weight: 600; letter-spacing: 0.04em;
      border: 1px solid transparent; transition: background var(--ease), color var(--ease), border-color var(--ease), transform var(--ease);
      text-decoration: none; line-height: 1;
    }
    .btn:active { transform: translateY(1px); }
    .btn-primary { background: var(--ink); color: var(--white); border-color: var(--ink); }
    .btn-primary:hover { background: var(--jade); border-color: var(--jade); color: var(--white); }
    .btn-ghost { background: transparent; color: var(--white); border-color: rgba(247,244,238,.45); }
    .btn-ghost:hover { background: var(--white); color: var(--ink); }
    .btn-line { background: transparent; color: var(--ink); border-color: var(--ink); }
    .btn-line:hover { background: var(--ink); color: var(--white); }
    .nav-cta { flex-shrink: 0; }
    .menu-toggle {
      display: none; width: 44px; height: 44px; border: 1px solid var(--line-strong);
      background: transparent; padding: 0; position: relative;
    }
    .menu-toggle span, .menu-toggle span::before, .menu-toggle span::after {
      position: absolute; left: 12px; width: 18px; height: 1px; background: var(--ink); content: "";
    }
    .menu-toggle span { top: 21px; }
    .menu-toggle span::before { top: -6px; }
    .menu-toggle span::after { top: 6px; }
    .drawer {
      position: fixed; inset: 0 0 0 auto; width: min(80vw, 360px);
      background: var(--paper); z-index: 90; transform: translateX(100%);
      transition: transform 280ms ease; border-left: 1px solid var(--line);
      display: flex; flex-direction: column; padding: 28px 24px 40px;
    }
    .drawer.is-open { transform: translateX(0); }
    .drawer-backdrop {
      position: fixed; inset: 0; background: rgba(15,15,15,.45); z-index: 85;
      opacity: 0; pointer-events: none; transition: opacity 280ms ease;
    }
    .drawer-backdrop.is-open { opacity: 1; pointer-events: auto; }
    .drawer-top { font-size: 13px; color: var(--muted); border-bottom: 1px solid var(--line); padding-bottom: 16px; margin-bottom: 18px; }
    .drawer nav a {
      display: flex; align-items: center; min-height: 48px; font-size: 18px;
      color: var(--ink); border-bottom: 1px solid var(--line); font-family: "Noto Serif SC", serif;
    }
    .hero { position: relative; min-height: calc(100vh - 116px); background: var(--night); color: var(--white); overflow: hidden; }
    .slides { position: absolute; inset: 0; }
    .slide {
      position: absolute; inset: 0; opacity: 0; transform: translateY(8px);
      transition: opacity 650ms ease, transform 650ms ease; pointer-events: none;
    }
    .slide.is-active { opacity: 1; transform: translateY(0); pointer-events: auto; z-index: 1; }
    .slide-bg { position: absolute; inset: 0; background-size: cover; background-position: center; }
    .slide-bg::after {
      content: ""; position: absolute; inset: 0;
      background: linear-gradient(90deg, rgba(15,15,15,.82) 0%, rgba(15,15,15,.55) 48%, rgba(15,15,15,.28) 100%);
    }
    .hero-content {
      position: relative; z-index: 2;
      width: min(1280px, calc(100% - 48px)); margin: 0 auto;
      min-height: calc(100vh - 116px);
      display: flex; flex-direction: column; justify-content: flex-end;
      padding: 80px 0 92px; max-width: 820px; margin-left: max(24px, calc((100% - 1280px) / 2));
    }
    .heat-badge {
      display: inline-flex; align-items: center; gap: 8px;
      border: 1px solid rgba(176,137,79,.55); color: #e4c48a;
      font-size: 12px; letter-spacing: 0.12em; padding: 6px 12px; margin-bottom: 22px; width: fit-content;
    }
    .heat-badge i { width: 6px; height: 6px; border-radius: 50%; background: var(--copper); display: inline-block; }
    .hero h1, .slide-title {
      font-family: "Noto Serif SC", serif; font-size: 64px; font-weight: 700;
      line-height: 1.12; letter-spacing: -0.03em; margin: 0 0 18px; color: var(--white);
    }
    .hero-sub { font-size: 18px; line-height: 1.7; color: rgba(247,244,238,.82); margin-bottom: 22px; max-width: 640px; }
    .hero-copy { font-size: 15px; line-height: 1.85; color: rgba(247,244,238,.72); max-width: 680px; margin-bottom: 32px; }
    .hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
    .carousel-ui { position: absolute; z-index: 3; left: 0; right: 0; bottom: 28px; }
    .carousel-inner { width: min(1280px, calc(100% - 48px)); margin: 0 auto; display: flex; align-items: center; justify-content: space-between; gap: 16px; }
    .indicators { display: flex; gap: 8px; }
    .indicators button {
      width: 28px; height: 2px; padding: 12px 0; background: transparent; border: 0;
      position: relative; min-width: 44px;
    }
    .indicators button::after {
      content: ""; position: absolute; left: 0; right: 8px; top: 50%; height: 2px; background: rgba(247,244,238,.28);
    }
    .indicators button.is-active::after { background: var(--copper); }
    .arrow-group { display: flex; gap: 8px; }
    .arrow {
      width: 44px; height: 44px; border: 1px solid rgba(247,244,238,.28);
      background: transparent; color: var(--white); font-size: 18px;
    }
    .arrow:hover { border-color: var(--white); background: rgba(247,244,238,.08); }
    .split { display: grid; grid-template-columns: 5fr 7fr; gap: 72px; align-items: center; }
    .split-media { border: 1px solid var(--line); overflow: hidden; }
    .split-media img { width: 100%; height: 100%; object-fit: cover; aspect-ratio: 4/5; }
    .badge-row { display: flex; flex-wrap: wrap; gap: 8px; margin: 22px 0 28px; }
    .badge {
      border: 1px solid var(--line-strong); padding: 4px 10px; font-size: 12px; color: var(--ink);
      letter-spacing: 0.04em; background: transparent;
    }
    .matrix { display: grid; grid-template-columns: 0.9fr 1.4fr; gap: 0; border: 1px solid var(--line-strong); }
    .matrix-nav { background: var(--paper); }
    .matrix-item {
      width: 100%; text-align: left; background: transparent; border: 0;
      border-bottom: 1px solid var(--line); padding: 22px 24px; min-height: 72px;
      display: flex; gap: 16px; align-items: flex-start; color: var(--ink);
    }
    .matrix-item:hover { background: #efeae1; }
    .matrix-item.is-active { background: var(--ink); color: var(--white); }
    .matrix-num { font-family: "Noto Serif SC", serif; color: var(--copper); font-size: 13px; min-width: 28px; }
    .matrix-item.is-active .matrix-num { color: var(--copper); }
    .matrix-item strong { display: block; font-size: 16px; font-weight: 600; }
    .matrix-item span { display: block; font-size: 13px; color: var(--muted); margin-top: 4px; }
    .matrix-item.is-active span { color: rgba(247,244,238,.65); }
    .matrix-panel { background: var(--paper-2); padding: 48px 48px; min-height: 420px; }
    .matrix-panel h3 { font-size: 28px; margin: 0 0 16px; }
    .matrix-panel p { color: var(--muted); }
    .adv-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
    .adv-card {
      border: 1px solid var(--line-strong); background: var(--paper); padding: 32px 28px;
      transition: transform var(--ease), border-color var(--ease); min-height: 220px;
    }
    .adv-card:hover { transform: translateY(-3px); border-color: var(--jade); }
    .adv-card .num { font-family: "Noto Serif SC", serif; color: var(--copper); font-size: 13px; letter-spacing: 0.12em; display: block; margin-bottom: 18px; }
    .adv-card h3 { font-size: 22px; margin: 0 0 12px; }
    .adv-card p { color: var(--muted); font-size: 14px; line-height: 1.7; }
    .product-grid { display: grid; grid-template-columns: 1.4fr 1fr; grid-template-rows: 1fr 1fr; gap: 18px; }
    .product-card {
      border: 1px solid var(--line-strong); background: var(--paper); overflow: hidden;
      display: flex; flex-direction: column; transition: transform var(--ease), border-color var(--ease);
    }
    .product-card:hover { transform: translateY(-3px); border-color: var(--jade); }
    .product-card.featured { grid-row: 1 / span 2; }
    .product-card img { width: 100%; object-fit: cover; }
    .product-card.featured img { aspect-ratio: 16/10; height: 58%; }
    .product-card:not(.featured) { display: grid; grid-template-columns: 140px 1fr; }
    .product-card:not(.featured) img { height: 100%; aspect-ratio: 3/4; }
    .product-body { padding: 24px 24px 28px; display: flex; flex-direction: column; gap: 10px; }
    .product-body h3 { font-size: 22px; margin: 0; }
    .product-body ul { margin: 0; padding-left: 18px; color: var(--muted); font-size: 14px; }
    .product-body .btn { margin-top: auto; align-self: flex-start; }
    .timeline { display: grid; grid-template-columns: repeat(5, 1fr); gap: 0; position: relative; }
    .timeline::before {
      content: ""; position: absolute; left: 8%; right: 8%; top: 27px;
      height: 1px; background: var(--copper); opacity: .55;
    }
    .step { padding: 0 16px; }
    .step-index {
      width: 54px; height: 54px; border: 1px solid var(--copper); background: var(--paper);
      display: grid; place-items: center; font-family: "Noto Serif SC", serif; color: var(--copper);
      margin-bottom: 18px; position: relative; z-index: 1;
    }
    .step h3 { font-size: 18px; margin: 0 0 8px; }
    .step p { font-size: 14px; color: var(--muted); }
    .dark-band { background: var(--night); color: var(--white); padding: 112px 0; }
    .dark-band h2, .dark-band h3 { color: var(--white); }
    .dark-band .lead { color: rgba(247,244,238,.7); }
    .case-wall { display: grid; grid-template-columns: 1.4fr 1fr 1fr; grid-template-rows: 280px 220px; gap: 12px; }
    .case-tile {
      position: relative; overflow: hidden; border: 1px solid rgba(247,244,238,.08);
      padding: 0; background: #1a1a1a; min-height: 180px; text-align: left; color: var(--white);
    }
    .case-tile.large { grid-row: 1 / span 2; }
    .case-tile img { width: 100%; height: 100%; object-fit: cover; opacity: .78; transition: opacity var(--ease), transform 400ms ease; }
    .case-tile:hover img { opacity: 1; transform: scale(1.03); }
    .case-meta {
      position: absolute; left: 0; right: 0; bottom: 0; padding: 18px 18px 16px;
      background: linear-gradient(transparent, rgba(15,15,15,.86));
    }
    .case-meta small { display: block; color: var(--copper); font-size: 12px; letter-spacing: 0.08em; margin-bottom: 4px; }
    .case-meta strong { font-family: "Noto Serif SC", serif; font-size: 18px; }
    .scene-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
    .scene-card { display: grid; grid-template-columns: 200px 1fr; gap: 0; border: 1px solid var(--line-strong); background: var(--paper); transition: transform var(--ease), border-color var(--ease); }
    .scene-card:hover { transform: translateY(-3px); border-color: var(--jade); }
    .scene-card img { width: 100%; height: 100%; object-fit: cover; aspect-ratio: 4/3; }
    .scene-body { padding: 28px 28px; display: flex; flex-direction: column; }
    .scene-body h3 { font-size: 22px; margin: 0 0 10px; }
    .scene-body p { color: var(--muted); font-size: 14px; }
    .story-grid { display: grid; grid-template-columns: 1.6fr 1fr; gap: 24px; }
    .quote-main { border-top: 1px solid var(--ink); padding: 36px 8px 8px; }
    .quote-main blockquote {
      font-family: "Noto Serif SC", serif; font-size: 30px; line-height: 1.45; margin: 0 0 24px; font-weight: 600;
    }
    .quote-main cite { font-style: normal; color: var(--muted); font-size: 14px; }
    .side-notes { display: flex; flex-direction: column; gap: 16px; }
    .side-note { border: 1px solid var(--line-strong); padding: 24px; background: var(--paper); }
    .side-note p { font-size: 14px; color: var(--muted); }
    .stat-bar { background: var(--paper-2); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); padding: 64px 0; }
    .stat-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
    .stat-item { text-align: left; }
    .stat-item .num { font-family: "Noto Serif SC", serif; font-size: 48px; line-height: 1; color: var(--jade); display: block; margin-bottom: 10px; }
    .stat-item span { color: var(--muted); font-size: 14px; }
    .review-layout { display: grid; grid-template-columns: 1.4fr .8fr; gap: 20px; }
    .review-big { background: var(--ink); color: var(--white); padding: 48px 44px; }
    .review-big p { font-family: "Noto Serif SC", serif; font-size: 24px; line-height: 1.55; margin-bottom: 28px; }
    .review-big cite { font-style: normal; color: rgba(247,244,238,.65); font-size: 14px; }
    .review-stack { display: flex; flex-direction: column; gap: 16px; }
    .review-small { border: 1px solid var(--line-strong); padding: 28px; background: var(--paper); }
    .review-small p { font-size: 15px; color: var(--muted); }
    .news-layout { display: grid; grid-template-columns: 1.15fr .85fr; gap: 40px; }
    .news-feature { border: 1px solid var(--line-strong); background: var(--paper); }
    .news-feature img { width: 100%; aspect-ratio: 16/10; object-fit: cover; }
    .news-feature-body { padding: 28px; }
    .news-feature time, .news-list time { color: var(--copper); font-size: 12px; letter-spacing: 0.08em; }
    .news-feature h3 { font-size: 24px; margin: 8px 0 12px; }
    .news-list { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--line-strong); }
    .news-list li { border-bottom: 1px solid var(--line); padding: 18px 0; }
    .news-list a { color: var(--ink); display: block; }
    .news-list h3 { font-size: 18px; margin: 6px 0 6px; }
    .news-list p { font-size: 14px; color: var(--muted); }
    .rank-box { margin-top: 28px; border: 1px solid var(--line-strong); padding: 20px 22px; }
    .rank-box h3 { font-size: 16px; margin: 0 0 12px; }
    .rank-box ol { margin: 0; padding: 0; list-style: none; }
    .rank-box li { display: flex; justify-content: space-between; gap: 12px; padding: 8px 0; border-bottom: 1px solid var(--line); font-size: 14px; }
    .rank-box li:last-child { border-bottom: 0; }
    .rank-box b { color: var(--copper); font-family: "Noto Serif SC", serif; min-width: 22px; }
    .partner-row { display: grid; grid-template-columns: repeat(5, 1fr); gap: 12px; }
    .partner {
      min-height: 76px; border: 1px solid var(--line); display: grid; place-items: center;
      color: #8a847a; font-size: 14px; letter-spacing: 0.08em; background: var(--paper);
    }
    .faq-list { border-top: 1px solid var(--line-strong); }
    .faq-item { border-bottom: 1px solid var(--line-strong); }
    .faq-q {
      width: 100%; min-height: 64px; background: transparent; border: 0; text-align: left;
      display: flex; justify-content: space-between; align-items: center; gap: 16px;
      font-size: 17px; font-weight: 600; color: var(--ink); padding: 8px 4px;
    }
    .faq-q .sign { color: var(--copper); font-family: "Noto Serif SC", serif; font-size: 22px; }
    .faq-a { display: none; padding: 0 4px 22px; color: var(--muted); max-width: 860px; }
    .faq-item.is-open .faq-a { display: block; }
    .guarantee { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; border: 1px solid var(--line-strong); }
    .g-item { padding: 28px 24px; border-right: 1px solid var(--line); }
    .g-item:last-child { border-right: 0; }
    .g-item h3 { font-size: 18px; margin: 0 0 8px; }
    .g-item p { font-size: 14px; color: var(--muted); }
    .contact-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 64px; align-items: start; }
    .contact-meta p { margin-bottom: 8px; color: var(--muted); }
    .contact-meta a { color: var(--ink); }
    .form { display: grid; gap: 16px; }
    .field label { display: block; font-size: 13px; margin-bottom: 6px; font-weight: 500; }
    .field input, .field select, .field textarea {
      width: 100%; height: 48px; border: 1px solid var(--line-strong); background: #fff;
      border-radius: 2px; padding: 0 12px; color: var(--ink); font-size: 15px;
    }
    .field textarea { height: 120px; padding: 12px; resize: vertical; }
    .field input:focus, .field select:focus, .field textarea:focus {
      outline: none; border-color: var(--jade); box-shadow: 0 0 0 2px rgba(44,110,93,.18);
    }
    .field.is-error input, .field.is-error select, .field.is-error textarea { border-color: #8a3b2a; }
    .field .err { display: none; color: #8a3b2a; font-size: 12px; margin-top: 4px; }
    .field.is-error .err { display: block; }
    .form-success {
      display: none; border: 1px solid var(--jade); color: var(--jade-deep);
      padding: 16px 18px; background: rgba(44,110,93,.06);
    }
    .form-success.is-show { display: block; }
    .site-footer { background: #171512; color: rgba(247,244,238,.72); padding: 72px 0 28px; }
    .footer-grid { display: grid; grid-template-columns: 1.3fr 1fr 1fr 1fr; gap: 36px; margin-bottom: 48px; }
    .site-footer h3 { color: var(--white); font-size: 16px; margin: 0 0 16px; }
    .site-footer .logo-text { color: var(--white); }
    .site-footer .logo-mark { border-color: var(--white); color: var(--white); }
    .site-footer a { color: rgba(247,244,238,.72); }
    .site-footer a:hover { color: var(--white); }
    .site-footer ul { list-style: none; margin: 0; padding: 0; }
    .site-footer li { margin-bottom: 8px; }
    .copyright { border-top: 1px solid rgba(247,244,238,.08); padding-top: 20px; font-size: 13px; display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
    .case-drawer {
      position: fixed; inset: 0 0 0 auto; width: min(480px, 92vw); background: var(--paper);
      z-index: 100; transform: translateX(100%); transition: transform 280ms ease;
      padding: 36px 32px; overflow: auto; border-left: 1px solid var(--line);
    }
    .case-drawer.is-open { transform: translateX(0); }
    .is-visible { animation: fadeUp 700ms ease both; }
    @keyframes fadeUp { from { opacity: 0; transform: translateY(16px); } to { opacity: 1; transform: none; } }
    @media (max-width: 1440px) {
      .hero h1, .slide-title { font-size: 56px; }
    }
    @media (max-width: 1024px) {
      .section { padding: 88px 0; }
      .section-head h2 { font-size: 32px; }
      .hero h1, .slide-title { font-size: 44px; }
      .nav-links { display: none; }
      .menu-toggle { display: inline-block; }
      .split, .matrix, .product-grid, .story-grid, .review-layout, .news-layout, .contact-grid, .footer-grid { grid-template-columns: 1fr; }
      .product-card.featured { grid-row: auto; }
      .product-card:not(.featured) { grid-template-columns: 160px 1fr; }
      .adv-grid, .scene-grid { grid-template-columns: 1fr 1fr; }
      .timeline { grid-template-columns: 1fr; gap: 22px; }
      .timeline::before { left: 26px; right: auto; top: 0; bottom: 0; width: 1px; height: auto; }
      .stat-grid, .guarantee, .partner-row { grid-template-columns: 1fr 1fr; }
      .case-wall { grid-template-columns: 1fr 1fr; grid-template-rows: 240px 200px 200px; }
      .case-tile.large { grid-row: auto; grid-column: 1 / span 2; min-height: 280px; }
      .split-media img { aspect-ratio: 16/10; }
    }
    @media (max-width: 768px) {
      .container, .topbar-inner, .nav-inner, .carousel-inner, .hero-content { width: calc(100% - 32px); }
      .hero-content { margin-left: 16px; padding: 64px 0 108px; min-height: 78vh; }
      .hero { min-height: 78vh; }
      .hero h1, .slide-title { font-size: 34px; }
      .hero-sub { font-size: 16px; }
      .topbar { display: none; }
      .nav-bar { height: 64px; }
      .adv-grid, .scene-grid, .stat-grid, .guarantee, .partner-row { grid-template-columns: 1fr; }
      .product-card:not(.featured) { grid-template-columns: 1fr; }
      .scene-card { grid-template-columns: 1fr; }
      .quote-main blockquote { font-size: 24px; }
      .review-big { padding: 32px 24px; }
      .review-big p { font-size: 20px; }
      .matrix-panel { padding: 28px 22px; }
      .g-item { border-right: 0; border-bottom: 1px solid var(--line); }
      .copyright { flex-direction: column; }
      .case-wall { grid-template-columns: 1fr; grid-template-rows: none; }
      .case-tile.large { grid-column: auto; }
    }
    @media (max-width: 520px) {
      .hero h1, .slide-title { font-size: 30px; }
      .section { padding: 64px 0; }
      .btn { width: auto; }
      .hero-actions .btn { min-width: 44px; }
    }