/* roulang page: index */
:root {
      --ink: #2A241E;
      --bronze: #8A6A45;
      --bronze-deep: #6F5436;
      --plaster: #F4F0EA;
      --stone: #E7E0D6;
      --paper: #FBF8F4;
      --dark: #161310;
      --cream: #F3EEE6;
      --muted: #6B6156;
      --line: #D8CFC3;
      --success: #2F5D45;
      --error: #8B2E2E;
      --white: #FFFaf4;
      --radius: 4px;
      --radius-lg: 8px;
      --shadow: 0 8px 24px rgba(42, 36, 30, 0.06);
      --shadow-hover: 0 10px 28px rgba(42, 36, 30, 0.1);
      --space: 24px;
      --gutter: 96px;
      --max: 1440px;
      --header-top: 52px;
      --header-nav: 58px;
      --sticky: 72px;
      --ease: cubic-bezier(.22,.61,.36,1);
    }
    *, *::before, *::after { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    body {
      margin: 0;
      font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
      font-size: 17px;
      line-height: 1.75;
      color: var(--ink);
      background: var(--plaster);
      -webkit-font-smoothing: antialiased;
    }
    img { max-width: 100%; display: block; height: auto; }
    a { color: inherit; text-decoration: none; }
    button, input, select, textarea { font-family: inherit; }
    button { cursor: pointer; border: 0; background: none; }
    h1, h2, h3, h4 {
      font-family: "Noto Serif SC", "Noto Serif CJK SC", serif;
      font-weight: 700;
      letter-spacing: -0.02em;
      line-height: 1.25;
      margin: 0 0 16px;
      color: var(--ink);
    }
    p { margin: 0 0 14px; }
    ul { margin: 0; padding: 0; list-style: none; }
    .container { width: min(var(--max), calc(100% - 48px)); margin: 0 auto; }
    section { position: relative; }
    section[id] { scroll-margin-top: calc(var(--header-nav) + 12px); }
    :focus-visible { outline: 2px solid var(--bronze); outline-offset: 3px; }
    .skip {
      position: absolute; left: -999px; top: 0;
      background: var(--ink); color: var(--cream); padding: 8px 12px; z-index: 80;
    }
    .skip:focus { left: 12px; top: 12px; }
    .btn {
      display: inline-flex; align-items: center; justify-content: center;
      min-height: 48px; padding: 0 22px; border-radius: var(--radius);
      font-size: 15px; font-weight: 500; letter-spacing: 0.04em;
      transition: transform .2s var(--ease), background .2s, color .2s, box-shadow .2s, border-color .2s;
      white-space: nowrap;
    }
    .btn:active { transform: translateY(1px); }
    .btn-solid { background: var(--ink); color: var(--cream); box-shadow: inset 0 0 0 1px transparent; }
    .btn-solid:hover { background: #1c1814; box-shadow: inset 0 0 0 1px var(--bronze); }
    .btn-bronze { background: var(--bronze); color: var(--paper); }
    .btn-bronze:hover { background: var(--bronze-deep); }
    .btn-ghost { background: transparent; color: var(--cream); border: 1px solid rgba(243,238,230,.45); }
    .btn-ghost:hover { border-color: var(--cream); }
    .btn-line { background: transparent; color: var(--ink); border: 1px solid var(--ink); }
    .btn-line:hover { background: var(--ink); color: var(--cream); }
    .btn-line.light { color: var(--cream); border-color: rgba(243,238,230,.5); }
    .btn-line.light:hover { background: var(--cream); color: var(--ink); }
    .btn:disabled { opacity: .45; cursor: not-allowed; transform: none; }
    .badge {
      display: inline-flex; align-items: center; gap: 6px;
      min-height: 30px; padding: 0 10px; border: 1px solid var(--line);
      border-radius: 2px; font-size: 12px; letter-spacing: .08em; color: var(--muted); background: var(--paper);
    }
    .kicker {
      display: inline-block; font-size: 12px; letter-spacing: .22em;
      color: var(--bronze); text-transform: none; margin-bottom: 12px;
    }
    .lead { color: var(--muted); max-width: 42em; }
    .header {
      position: sticky; top: 0; z-index: 50; background: var(--paper);
      border-bottom: 1px solid var(--line);
    }
    .header.is-compact .topbar { height: 0; opacity: 0; pointer-events: none; overflow: hidden; }
    .topbar {
      height: var(--header-top); display: flex; align-items: center;
      background: var(--ink); color: var(--cream); transition: height .25s var(--ease), opacity .25s;
    }
    .topbar .container { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
    .logo {
      font-family: "Noto Serif SC", serif; font-weight: 700; font-size: 18px;
      letter-spacing: .12em; color: var(--cream); display: flex; align-items: baseline; gap: 8px;
    }
    .logo small { font-family: "Noto Sans SC", sans-serif; font-size: 11px; letter-spacing: .18em; color: #cbb89a; font-weight: 400; }
    .scope { display: flex; gap: 10px; font-size: 12px; letter-spacing: .16em; color: #c9bfb3; }
    .scope span + span::before { content: "·"; margin-right: 10px; color: var(--bronze); }
    .top-actions { display: flex; align-items: center; gap: 16px; }
    .tel { color: var(--cream); font-size: 14px; letter-spacing: .04em; }
    .btn-mini { min-height: 36px; padding: 0 14px; font-size: 13px; background: var(--bronze); color: var(--paper); border-radius: 2px; }
    .btn-mini:hover { background: var(--bronze-deep); }
    .navrow {
      height: var(--header-nav); background: var(--paper);
    }
    .navrow .container { height: 100%; display: flex; align-items: center; justify-content: space-between; gap: 20px; }
    .brand-compact { display: none; font-family: "Noto Serif SC", serif; font-weight: 700; letter-spacing: .1em; }
    .menu { display: flex; gap: 4px; }
    .menu a {
      position: relative; padding: 8px 12px; font-size: 14px; color: var(--ink);
    }
    .menu a::after {
      content: ""; position: absolute; left: 12px; right: 12px; bottom: 4px; height: 1px;
      background: var(--bronze); transform: scaleX(0); transform-origin: left; transition: transform .25s var(--ease);
    }
    .menu a:hover::after, .menu a.is-active::after { transform: scaleX(1); }
    .nav-cta { display: flex; align-items: center; gap: 14px; }
    .burger {
      display: none; width: 44px; height: 44px; align-items: center; justify-content: center; flex-direction: column; gap: 5px;
    }
    .burger span { display: block; width: 18px; height: 1px; background: var(--ink); transition: .2s; }
    .burger.is-open span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
    .burger.is-open span:nth-child(2) { opacity: 0; }
    .burger.is-open span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }
    .drawer {
      display: none; position: fixed; inset: calc(var(--header-top) + var(--header-nav)) 0 0 0;
      background: rgba(22,19,16,.42); z-index: 40;
    }
    .drawer.is-open { display: block; }
    .drawer-panel {
      background: var(--paper); width: min(86vw, 360px); height: 100%; margin-left: auto;
      padding: 28px 24px; border-left: 1px solid var(--line); overflow: auto;
    }
    .drawer-panel a { display: block; padding: 14px 0; border-bottom: 1px solid var(--stone); font-size: 16px; }
    .hero {
      position: relative; min-height: 90vh; color: var(--cream); overflow: hidden; background: var(--dark);
    }
    .slides, .slide { position: absolute; inset: 0; }
    .slide { opacity: 0; transition: opacity 1s ease; }
    .slide.is-on { opacity: 1; z-index: 1; }
    .slide img {
      width: 100%; height: 100%; object-fit: cover;
      transform: scale(1.04); animation: ken 18s linear infinite alternate;
    }
    .slide.is-on img { animation-play-state: running; }
    .slide:not(.is-on) img { animation-play-state: paused; }
    @keyframes ken { from { transform: scale(1.02) translate3d(0,0,0); } to { transform: scale(1.08) translate3d(-1.2%, -1%, 0); } }
    .hero-mask {
      position: absolute; inset: 0; z-index: 2;
      background:
        linear-gradient(90deg, rgba(22,19,16,.72) 0%, rgba(22,19,16,.28) 48%, rgba(22,19,16,.18) 100%),
        linear-gradient(180deg, rgba(22,19,16,.18) 0%, rgba(22,19,16,.55) 100%);
    }
    .series {
      position: absolute; z-index: 3; top: 28px; left: 0; right: 0;
    }
    .series-track {
      display: flex; gap: 0; overflow: auto; border: 1px solid rgba(243,238,230,.18);
      background: rgba(22,19,16,.28); backdrop-filter: blur(4px);
    }
    .series a {
      flex: 1; min-width: 120px; text-align: center; padding: 12px 8px; font-size: 13px; letter-spacing: .16em;
      color: rgba(243,238,230,.78); border-right: 1px solid rgba(243,238,230,.12);
    }
    .series a:last-child { border-right: 0; }
    .series a:hover, .series a.is-on { color: var(--cream); background: rgba(138,106,69,.28); }
    .hero-copy {
      position: relative; z-index: 3; min-height: 90vh;
      display: flex; flex-direction: column; justify-content: flex-end;
      padding: 140px 0 88px; width: min(var(--max), calc(100% - 48px)); margin: 0 auto;
    }
    .hero h1 {
      color: var(--cream); font-size: clamp(36px, 5vw, 68px); max-width: 8.2em;
      margin-bottom: 18px; animation: rise .8s var(--ease) both;
    }
    .hero-intro { max-width: 38em; color: #ddd4c8; font-size: 16px; margin-bottom: 28px; animation: rise .9s .08s var(--ease) both; }
    .hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 28px; }
    .trust { display: flex; flex-wrap: wrap; gap: 8px; }
    .trust .badge { background: transparent; color: #e6dccf; border-color: rgba(230,220,207,.28); }
    @keyframes rise { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: none; } }
    .hero-ctrl {
      position: absolute; z-index: 4; right: 24px; bottom: 32px; display: flex; align-items: center; gap: 10px;
    }
    .hero-ctrl button {
      width: 44px; height: 44px; border: 1px solid rgba(243,238,230,.35);
      color: var(--cream); border-radius: 2px; background: rgba(22,19,16,.35);
    }
    .hero-ctrl button:hover { border-color: var(--cream); background: rgba(22,19,16,.6); }
    .dots { display: flex; gap: 8px; margin-left: 8px; }
    .dots button {
      width: 22px; height: 2px; padding: 0; background: rgba(243,238,230,.35); border-radius: 0;
    }
    .dots button.is-on { background: var(--bronze); }
    .pause-lab { font-size: 12px; letter-spacing: .12em; color: #d8cec2; min-width: 44px; }
    .sec { padding: 92px 0; }
    .sec-tight { padding: 64px 0; }
    .sec-head { display: grid; grid-template-columns: 1.1fr .9fr; gap: 48px; align-items: end; margin-bottom: 42px; }
    .sec-head h2 { font-size: clamp(28px, 3.2vw, 44px); margin: 0; }
    .sec-plaster { background: var(--plaster); }
    .sec-paper { background: var(--paper); }
    .sec-stone { background: var(--stone); }
    .offers {
      display: grid; grid-template-columns: 1.35fr .65fr .65fr; gap: 18px; margin-top: -56px;
      position: relative; z-index: 5; padding-bottom: 20px;
    }
    .offer {
      background: var(--paper); border: 1px solid var(--line); padding: 36px 32px;
      box-shadow: var(--shadow); min-height: 220px; transition: transform .25s var(--ease), box-shadow .25s, border-color .25s;
    }
    .offer:hover { transform: translateY(-3px); box-shadow: var(--shadow-hover); border-color: var(--bronze); }
    .offer.big { background: var(--ink); color: var(--cream); }
    .offer.big h3, .offer.big p { color: var(--cream); }
    .offer h3 { font-size: 28px; }
    .offer .num {
      font-family: "Noto Serif SC", serif; font-size: 42px; color: var(--bronze); line-height: 1; margin-bottom: 12px;
    }
    .intro-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 56px; align-items: center; }
    .intro-visual { position: relative; }
    .intro-visual img { width: 100%; height: 620px; object-fit: cover; filter: saturate(.92); }
    .intro-caption {
      position: absolute; left: 18px; bottom: 18px; background: rgba(251,248,244,.92);
      padding: 14px 16px; border-left: 2px solid var(--bronze); max-width: 78%;
    }
    .spec { width: 100%; border-collapse: collapse; margin-top: 22px; font-size: 14px; }
    .spec th, .spec td { text-align: left; padding: 10px 0; border-bottom: 1px solid var(--line); }
    .spec th { color: var(--muted); font-weight: 500; width: 38%; }
    .scope-list { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; }
    .scenes-track {
      display: grid; grid-auto-flow: column; grid-auto-columns: minmax(280px, 1fr);
      gap: 16px; overflow-x: auto; scroll-snap-type: x mandatory; padding-bottom: 8px;
    }
    .scene {
      position: relative; min-height: 420px; scroll-snap-align: start; overflow: hidden; background: var(--dark);
    }
    .scene img { width: 100%; height: 100%; object-fit: cover; min-height: 420px; }
    .scene-bar {
      position: absolute; left: 12px; right: 12px; bottom: 12px;
      background: rgba(22,19,16,.78); color: var(--cream); padding: 16px 18px;
      border-top: 1px solid rgba(138,106,69,.55);
    }
    .scene-bar h3 { color: var(--cream); font-size: 20px; margin-bottom: 6px; }
    .scene-bar p { color: #d8cec2; font-size: 14px; margin: 0 0 10px; }
    .link-arrow { color: #e8d7b8; font-size: 13px; letter-spacing: .12em; }
    .link-arrow:hover { text-decoration: underline; }
    .craft-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
    .craft {
      background: var(--paper); border: 1px solid var(--line); padding: 28px 24px 32px;
      min-height: 250px; transition: transform .2s var(--ease), border-color .2s;
    }
    .craft:hover { transform: translateY(-2px); border-color: var(--bronze); }
    .craft .idx { font-family: "Noto Serif SC", serif; color: var(--bronze); font-size: 22px; letter-spacing: .16em; }
    .craft h3 { font-size: 22px; margin: 10px 0 12px; }
    .craft p { color: var(--muted); font-size: 15px; margin: 0; }
    .pkg-grid { display: grid; grid-template-columns: 1.4fr .86fr; gap: 16px; }
    .pkg-side { display: grid; gap: 16px; }
    .pkg { position: relative; overflow: hidden; min-height: 280px; background: var(--dark); color: var(--cream); }
    .pkg.main { min-height: 576px; }
    .pkg img { width: 100%; height: 100%; object-fit: cover; position: absolute; inset: 0; opacity: .78; }
    .pkg-body { position: relative; z-index: 1; padding: 28px; height: 100%; display: flex; flex-direction: column; justify-content: flex-end;
      background: linear-gradient(180deg, transparent 20%, rgba(22,19,16,.82) 100%); }
    .pkg .no { font-family: "Noto Serif SC", serif; letter-spacing: .2em; color: #cbb89a; font-size: 13px; }
    .pkg h3 { color: var(--cream); font-size: 28px; }
    .pkg-meta { display: flex; flex-wrap: wrap; gap: 8px; margin: 8px 0 14px; }
    .pkg-meta span { border: 1px solid rgba(243,238,230,.28); padding: 4px 8px; font-size: 12px; }
    .cases { background: var(--dark); color: var(--cream); padding: 100px 0; }
    .cases h2, .cases h3 { color: var(--cream); }
    .cases-grid { display: grid; grid-template-columns: .82fr 1.18fr; gap: 48px; align-items: stretch; }
    .idea { font-size: clamp(28px, 3.4vw, 48px); line-height: 1.3; max-width: 8.5em; }
    .case-stage { position: relative; min-height: 460px; overflow: hidden; border: 1px solid rgba(138,106,69,.35); }
    .case-frame { position: absolute; inset: 0; opacity: 0; transition: opacity .6s ease; }
    .case-frame.is-on { opacity: 1; }
    .case-frame img { width: 100%; height: 100%; object-fit: cover; }
    .case-info {
      position: absolute; left: 0; right: 0; bottom: 0; padding: 22px 24px;
      background: linear-gradient(180deg, transparent, rgba(22,19,16,.88));
    }
    .case-tabs { display: flex; gap: 8px; margin-top: 16px; flex-wrap: wrap; }
    .case-tabs button {
      min-height: 40px; padding: 0 12px; border: 1px solid rgba(243,238,230,.22); color: #d8cec2; font-size: 13px;
    }
    .case-tabs button.is-on { border-color: var(--bronze); color: var(--cream); }
    .compare-wrap { overflow: auto; }
    .compare { width: 100%; border-collapse: collapse; min-width: 720px; }
    .compare th, .compare td { padding: 16px 18px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
    .compare thead th { background: var(--ink); color: var(--cream); font-weight: 500; }
    .compare tbody tr:hover td { background: rgba(138,106,69,.06); }
    .compare td:first-child { font-weight: 600; width: 22%; }
    .m-compare { display: none; }
    .m-card { background: var(--paper); border: 1px solid var(--line); padding: 18px; margin-bottom: 12px; }
    .m-card h3 { font-size: 18px; }
    .m-card .row { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; font-size: 14px; color: var(--muted); }
    .stories { display: grid; grid-template-columns: 1.4fr .8fr; gap: 16px; }
    .story { background: var(--paper); border: 1px solid var(--line); overflow: hidden; }
    .story img { width: 100%; height: 280px; object-fit: cover; }
    .story.main img { height: 360px; }
    .story-body { padding: 24px; }
    .who { font-size: 12px; letter-spacing: .14em; color: var(--bronze); margin-bottom: 8px; }
    .side-stories { display: grid; gap: 16px; }
    .stats {
      display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line);
    }
    .stat { padding: 36px 20px; text-align: left; border-right: 1px solid var(--line); }
    .stat:last-child { border-right: 0; }
    .stat b { font-family: "Noto Serif SC", serif; font-size: 44px; display: block; line-height: 1; color: var(--ink); }
    .stat span { color: var(--muted); font-size: 14px; }
    .reviews { display: grid; grid-template-columns: 1.2fr .8fr .9fr; grid-template-rows: auto auto; gap: 16px; }
    .review { background: var(--paper); border: 1px solid var(--line); padding: 24px; }
    .review:nth-child(1) { grid-row: span 2; }
    .stars { color: var(--bronze); letter-spacing: 2px; margin-bottom: 8px; font-size: 14px; }
    .tag { display: inline-block; font-size: 12px; letter-spacing: .08em; color: var(--bronze); border: 1px solid #cbb89a; padding: 2px 8px; margin-bottom: 10px; }
    .news-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
    .news { background: var(--paper); border: 1px solid var(--line); overflow: hidden; transition: transform .2s, border-color .2s; }
    .news:hover { transform: translateY(-3px); border-color: var(--bronze); }
    .news img { width: 100%; height: 170px; object-fit: cover; }
    .news-body { padding: 18px; }
    .news time { font-size: 12px; color: var(--muted); letter-spacing: .08em; }
    .news h3 { font-size: 18px; margin: 8px 0; }
    .news p { font-size: 14px; color: var(--muted); margin: 0; }
    .timeline { display: grid; grid-template-columns: repeat(6, 1fr); gap: 0; position: relative; }
    .step { padding: 8px 16px 0 0; position: relative; }
    .step::before {
      content: ""; position: absolute; top: 17px; left: 28px; right: 0; height: 1px; background: var(--line);
    }
    .step:last-child::before { display: none; }
    .dot {
      width: 34px; height: 34px; border: 1px solid var(--bronze); border-radius: 50%;
      display: flex; align-items: center; justify-content: center;
      font-family: "Noto Serif SC", serif; font-size: 12px; background: var(--paper); position: relative; z-index: 1;
    }
    .step h3 { font-size: 18px; margin: 16px 0 8px; }
    .step p { font-size: 14px; color: var(--muted); }
    .swatches { display: grid; gap: 14px; }
    .swatch { display: grid; grid-template-columns: 220px 1fr; gap: 18px; align-items: center; background: var(--paper); border: 1px solid var(--line); padding: 14px; }
    .chip { height: 72px; display: grid; grid-template-columns: repeat(5, 1fr); }
    .chip i { display: block; }
    .faq-list { display: grid; gap: 10px; }
    .faq-item { border: 1px solid var(--line); background: var(--paper); }
    .faq-item button {
      width: 100%; text-align: left; padding: 18px 52px 18px 20px; font-size: 16px; font-weight: 600;
      position: relative; min-height: 56px;
    }
    .faq-item button::after, .faq-item button::before {
      content: ""; position: absolute; right: 20px; top: 50%; width: 14px; height: 1px; background: var(--ink);
    }
    .faq-item button::after { transform: rotate(90deg); transition: transform .2s; }
    .faq-item.is-open button::after { transform: rotate(0); }
    .faq-panel { display: none; padding: 0 20px 18px; color: var(--muted); font-size: 15px; }
    .faq-item.is-open .faq-panel { display: block; }
    .faq-panel li { list-style: disc; margin-left: 1.2em; margin-bottom: 4px; }
    .guard { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
    .guard article { background: var(--paper); border: 1px solid var(--line); padding: 22px; min-height: 160px; }
    .guard h3 { font-size: 20px; }
    .consult { padding: 88px 0 140px; background: var(--ink); color: var(--cream); }
    .consult h2 { color: var(--cream); }
    .consult-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 48px; }
    .form {
      background: var(--paper); color: var(--ink); padding: 28px; border: 1px solid rgba(138,106,69,.35);
    }
    .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; letter-spacing: .08em; }
    input, select, textarea {
      min-height: 46px; border: 1px solid var(--line); background: #fff; padding: 10px 12px; color: var(--ink); border-radius: 2px;
    }
    textarea { min-height: 96px; resize: vertical; }
    input:focus, select:focus, textarea:focus { border-color: var(--bronze); outline: none; box-shadow: 0 0 0 3px rgba(138,106,69,.15); }
    .err { color: var(--error); font-size: 12px; min-height: 16px; }
    .ok { display: none; margin-top: 12px; padding: 12px; background: #e8f1ea; color: var(--success); border: 1px solid #b7d2bf; }
    .ok.show { display: block; }
    .note { color: #cfc4b6; font-size: 14px; }
    .footer { background: #100e0c; color: #cfc4b6; padding: 56px 0 110px; }
    .foot-grid { display: grid; grid-template-columns: 1.3fr .8fr 1fr .8fr; gap: 32px; }
    .footer .logo { color: var(--cream); margin-bottom: 12px; }
    .footer a:hover { color: var(--cream); }
    .copy { margin-top: 28px; padding-top: 18px; border-top: 1px solid rgba(243,238,230,.12); font-size: 13px; }
    .dock {
      position: fixed; left: 0; right: 0; bottom: 0; z-index: 45;
      display: none; background: rgba(251,248,244,.92); border-top: 1px solid var(--line);
      backdrop-filter: blur(6px);
    }
    .dock.is-show { display: block; }
    .dock .container { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; padding: 8px 0; }
    .dock a, .dock button {
      min-height: 46px; display: flex; align-items: center; justify-content: center;
      border: 1px solid var(--line); background: var(--paper); font-size: 14px;
    }
    .dock .hot { background: var(--ink); color: var(--cream); border-color: var(--ink); }
    @media (max-width: 1440px) {
      .container, .hero-copy { width: min(100% - 64px, var(--max)); }
    }
    @media (max-width: 1024px) {
      .scope { display: none; }
      .offers, .intro-grid, .craft-grid, .pkg-grid, .cases-grid, .stories, .stats, .reviews, .news-grid, .timeline, .guard, .consult-grid, .foot-grid, .sec-head {
        grid-template-columns: 1fr 1fr;
      }
      .offer.big, .pkg.main, .review:nth-child(1), .consult-grid .form, .intro-visual, .cases-grid .case-stage { grid-column: 1 / -1; }
      .pkg-side { grid-template-columns: 1fr 1fr; }
      .timeline { grid-template-columns: repeat(3, 1fr); gap: 18px; }
      .step::before { display: none; }
      .intro-visual img { height: 420px; }
      .hero { min-height: 78vh; }
      .hero-copy { min-height: 78vh; padding-top: 120px; }
    }
    @media (max-width: 768px) {
      .menu, .nav-cta .btn, .brand-compact { }
      .menu, .nav-cta .hide-m { display: none; }
      .burger, .brand-compact { display: flex; }
      .top-actions .btn-mini { display: none; }
      .hero, .hero-copy { min-height: 70vh; }
      .hero h1 { font-size: 34px; }
      .hero-copy { padding: 118px 0 72px; }
      .offers, .intro-grid, .craft-grid, .pkg-grid, .pkg-side, .cases-grid, .stories, .stats, .reviews, .news-grid, .timeline, .guard, .consult-grid, .foot-grid, .sec-head, .swatch, .fields {
        grid-template-columns: 1fr;
      }
      .review:nth-child(1) { grid-row: auto; }
      .sec { padding: 64px 0; }
      .container, .hero-copy { width: calc(100% - 40px); }
      .compare { display: none; }
      .m-compare { display: block; }
      .dock.is-show, .dock { display: block; }
      .form .btn { width: 100%; }
      .scene { min-height: 360px; }
    }
    @media (max-width: 520px) {
      body { font-size: 16px; }
      .scope-list .badge { font-size: 11px; }
      .series a { min-width: 108px; font-size: 12px; }
      .stat b { font-size: 32px; }
      .footer { padding-bottom: 120px; }
    }
    @media (prefers-reduced-motion: reduce) {
      *, *::before, *::after { animation: none !important; transition: none !important; }
      html { scroll-behavior: auto; }
      .slide img { transform: none; }
    }

/* roulang page: index */
:root {
      --ink: #2A241E;
      --bronze: #8A6A45;
      --bronze-deep: #6E5334;
      --gypsum: #F4F0EA;
      --stone: #E7E0D6;
      --paper: #FBF8F4;
      --dark: #161310;
      --cream: #F3EEE6;
      --muted: #6F675E;
      --line: #D7CFC4;
      --ok: #2F6B4F;
      --err: #9B3A2F;
      --white: #FFFaf6;
      --radius: 4px;
      --radius-md: 8px;
      --shadow: 0 8px 24px rgba(42, 36, 30, 0.06);
      --shadow-sm: 0 4px 14px rgba(42, 36, 30, 0.05);
      --space: 24px;
      --gutter: 100px;
      --container: 1440px;
      --nav-h: 108px;
      --sticky-h: 58px;
      --ease: cubic-bezier(.22,.61,.36,1);
    }
    *, *::before, *::after { box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    html, body { margin: 0; padding: 0; }
    body {
      font-family: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
      font-size: 17px;
      line-height: 1.75;
      color: var(--ink);
      background: var(--gypsum);
      overflow-x: 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 {
      font-family: "Noto Serif SC", "Source Han Serif SC", "Noto Serif SC", serif;
      font-weight: 700;
      line-height: 1.28;
      letter-spacing: 0.02em;
      margin: 0;
    }
    p { margin: 0; }
    ul { margin: 0; padding: 0; list-style: none; }
    :focus-visible { outline: 2px solid var(--bronze); outline-offset: 3px; }
    .container {
      width: min(var(--container), calc(100% - 48px));
      margin: 0 auto;
    }
    .skip {
      position: absolute; left: -999px; top: 0;
    }
    .skip:focus { left: 16px; top: 16px; background: var(--paper); padding: 8px 12px; z-index: 80; }
    .site-header {
      position: absolute; left: 0; right: 0; top: 0; z-index: 40;
      color: var(--cream);
    }
    .site-header.is-sticky {
      position: fixed;
      background: rgba(251, 248, 244, 0.96);
      color: var(--ink);
      box-shadow: 0 1px 0 var(--line);
      backdrop-filter: blur(10px);
    }
    .site-header.is-sticky .topbar { max-height: 0; opacity: 0; overflow: hidden; padding: 0 0; border: 0; }
    .topbar {
      display: flex; align-items: center; justify-content: space-between;
      gap: 16px; padding: 10px var(--gutter);
      border-bottom: 1px solid rgba(243, 238, 230, 0.18);
      transition: max-height .28s var(--ease), opacity .28s var(--ease), padding .28s var(--ease);
      max-height: 56px;
    }
    .logo {
      font-family: "Noto Serif SC", serif;
      font-weight: 700;
      font-size: 20px;
      letter-spacing: 0.08em;
      white-space: nowrap;
    }
    .logo span { color: var(--bronze); padding-left: 2px; }
    .scope {
      display: flex; gap: 18px; color: rgba(243,238,230,.82); font-size: 13px; letter-spacing: 0.12em;
    }
    .site-header.is-sticky .scope { color: var(--muted); }
    .top-actions { display: flex; align-items: center; gap: 18px; }
    .tel {
      font-size: 14px; letter-spacing: 0.04em; min-height: 44px; display: inline-flex; align-items: center;
    }
    .btn {
      display: inline-flex; align-items: center; justify-content: center;
      min-height: 44px; padding: 0 18px; border-radius: var(--radius);
      border: 1px solid transparent; font-size: 14px; font-weight: 600;
      letter-spacing: 0.06em; transition: transform .2s var(--ease), background .2s, border-color .2s, box-shadow .2s;
    }
    .btn:hover { transform: translateY(-2px); }
    .btn:active { transform: translateY(1px); }
    .btn-primary { background: var(--bronze); color: var(--cream); }
    .btn-primary:hover { background: var(--bronze-deep); }
    .btn-dark { background: var(--ink); color: var(--cream); }
    .btn-dark:hover { background: #1b1713; }
    .btn-ghost {
      background: transparent; color: inherit; border-color: currentColor;
    }
    .btn-line {
      background: transparent; color: var(--ink); border-color: var(--ink);
    }
    .btn-line:hover { border-color: var(--bronze); color: var(--bronze-deep); }
    .btn-sm { min-height: 40px; padding: 0 14px; }
    .mainnav {
      display: flex; align-items: center; justify-content: space-between;
      padding: 0 var(--gutter); min-height: var(--sticky-h);
    }
    .nav-links { display: flex; gap: 4px; }
    .nav-links a {
      position: relative; padding: 18px 14px; font-size: 14px; color: inherit;
    }
    .nav-links a::after {
      content: ""; position: absolute; left: 14px; right: 14px; bottom: 10px; height: 1px;
      background: var(--bronze); transform: scaleX(0); transform-origin: left; transition: transform .28s var(--ease);
    }
    .nav-links a:hover::after, .nav-links a.is-active::after { transform: scaleX(1); }
    .burger {
      display: none; width: 44px; height: 44px; border: 0; background: transparent; color: inherit;
      position: relative;
    }
    .burger span, .burger::before, .burger::after {
      content: ""; display: block; width: 18px; height: 1px; background: currentColor; margin: 5px auto; transition: .2s;
    }
    .hero {
      position: relative; min-height: 90vh; color: var(--cream); overflow: hidden;
      background: var(--dark);
    }
    .slides { position: absolute; inset: 0; }
    .slide {
      position: absolute; inset: 0; opacity: 0; transition: opacity 1s ease;
    }
    .slide.is-on { opacity: 1; z-index: 1; }
    .slide img {
      width: 100%; height: 100%; object-fit: cover;
      transform: scale(1.04); animation: ken 18s linear infinite alternate;
    }
    .slide::after {
      content: ""; position: absolute; inset: 0;
      background: linear-gradient(90deg, rgba(22,19,16,.72) 0%, rgba(22,19,16,.28) 48%, rgba(22,19,16,.18) 100%),
                  linear-gradient(180deg, rgba(22,19,16,.35), transparent 28%, rgba(22,19,16,.55) 100%);
    }
    @keyframes ken { from { transform: scale(1.02); } to { transform: scale(1.08); } }
    .hero-copy {
      position: relative; z-index: 3; min-height: 90vh;
      display: flex; flex-direction: column; justify-content: flex-end;
      padding: 140px var(--gutter) 88px;
      max-width: 980px;
    }
    .kicker {
      font-size: 13px; letter-spacing: 0.28em; color: #d9c5a4; margin-bottom: 18px;
    }
    .hero h1 {
      font-size: clamp(36px, 5vw, 68px);
      max-width: 12em;
      animation: rise .7s var(--ease) both;
    }
    .hero-lead {
      margin-top: 22px; max-width: 36em; font-size: 16px; color: rgba(243,238,230,.88);
      animation: rise .8s .08s var(--ease) both;
    }
    .hero-cta { display: flex; gap: 12px; margin-top: 28px; flex-wrap: wrap; animation: rise .8s .14s var(--ease) both; }
    .series {
      position: absolute; z-index: 4; left: var(--gutter); right: var(--gutter); top: 126px;
      display: flex; gap: 8px; flex-wrap: wrap;
    }
    .series a {
      min-height: 36px; padding: 0 12px; display: inline-flex; align-items: center;
      border: 1px solid rgba(243,238,230,.28); font-size: 12px; letter-spacing: .12em;
      background: rgba(22,19,16,.28);
    }
    .series a:hover { border-color: var(--bronze); color: #e8d3b0; }
    .hero-ctrl {
      position: absolute; z-index: 4; right: var(--gutter); bottom: 36px;
      display: flex; align-items: center; gap: 10px;
    }
    .dot, .icon-btn {
      width: 44px; height: 44px; border: 1px solid rgba(243,238,230,.35); background: transparent; color: var(--cream);
      display: inline-flex; align-items: center; justify-content: center;
    }
    .dot { width: 28px; height: 4px; border: 0; background: rgba(243,238,230,.35); }
    .dot.is-on { background: var(--bronze); }
    @keyframes rise { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: none; } }
    main { background: var(--gypsum); }
    .sec {
      padding: 96px 0;
      position: relative;
    }
    .sec-head { margin-bottom: 36px; max-width: 760px; }
    .sec-head h2 { font-size: clamp(28px, 3vw, 40px); margin-bottom: 14px; }
    .sec-head p, .prose { color: var(--muted); font-size: 16px; }
    .num {
      font-family: "Noto Serif SC", serif; color: var(--bronze); font-size: 13px; letter-spacing: .2em;
      display: block; margin-bottom: 10px;
    }
    #offers { padding-top: 88px; }
    .offer-grid {
      display: grid; grid-template-columns: 1.15fr .85fr; gap: 20px; align-items: stretch;
    }
    .offer-main {
      background: var(--paper); border: 1px solid var(--line); padding: 48px 44px; min-height: 320px;
      display: flex; flex-direction: column; justify-content: space-between;
    }
    .offer-main h2 { font-size: 40px; max-width: 8em; }
    .offer-side { display: grid; gap: 20px; }
    .metric {
      background: var(--ink); color: var(--cream); padding: 28px 30px; min-height: 150px;
      display: grid; grid-template-columns: auto 1fr; gap: 18px; align-items: center;
    }
    .metric b {
      font-family: "Noto Serif SC", serif; font-size: 48px; color: #d9c5a4; line-height: 1;
    }
    .metric span { display: block; color: rgba(243,238,230,.7); font-size: 14px; }
    .intro-grid {
      display: grid; grid-template-columns: 1.05fr .95fr; gap: 48px; align-items: center;
    }
    .frame {
      position: relative; overflow: hidden; border: 1px solid var(--line);
    }
    .frame img { width: 100%; height: 100%; object-fit: cover; aspect-ratio: 4/5; }
    .param {
      margin-top: 22px; padding: 18px 0 0; border-top: 1px solid var(--line);
      display: grid; gap: 8px; color: var(--ink); font-size: 15px;
    }
    .chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; }
    .chip {
      border: 1px solid var(--line); padding: 6px 10px; font-size: 13px; background: var(--paper);
    }
    .track-wrap { overflow: hidden; }
    .track {
      display: flex; gap: 18px; overflow-x: auto; scroll-snap-type: x mandatory;
      padding-bottom: 10px; -webkit-overflow-scrolling: touch;
    }
    .scene {
      flex: 0 0 min(72%, 520px); scroll-snap-align: start; position: relative; overflow: hidden;
      min-height: 360px; background: var(--stone);
    }
    .scene img { width: 100%; height: 420px; object-fit: cover; }
    .scene figcaption {
      position: absolute; left: 16px; right: 16px; bottom: 16px;
      background: rgba(22,19,16,.82); color: var(--cream); padding: 16px 18px;
    }
    .scene h3 { font-size: 22px; margin-bottom: 6px; }
    .scene p { color: rgba(243,238,230,.8); font-size: 14px; }
    .scene a { display: inline-block; margin-top: 8px; color: #e8d3b0; border-bottom: 1px solid currentColor; font-size: 14px; }
    .craft-grid {
      display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px;
    }
    .card {
      background: var(--paper); border: 1px solid var(--line); padding: 26px 24px;
      transition: transform .22s var(--ease), box-shadow .22s, border-color .22s;
    }
    .card:hover { transform: translateY(-3px); box-shadow: var(--shadow-sm); border-color: var(--bronze); }
    .card h3 { font-size: 20px; margin: 8px 0 10px; }
    .card p { color: var(--muted); font-size: 15px; }
    .pkg-grid {
      display: grid; grid-template-columns: 1.4fr 1fr; grid-template-rows: auto auto; gap: 16px;
    }
    .pkg { position: relative; overflow: hidden; min-height: 240px; color: var(--cream); background: var(--dark); }
    .pkg img { width: 100%; height: 100%; object-fit: cover; min-height: 240px; opacity: .72; }
    .pkg-body {
      position: absolute; inset: auto 0 0 0; padding: 24px; background: linear-gradient(transparent, rgba(22,19,16,.88));
    }
    .pkg.featured { grid-row: 1 / span 2; min-height: 520px; }
    .pkg.featured img { min-height: 520px; }
    .tag {
      display: inline-block; font-size: 12px; letter-spacing: .14em; border: 1px solid rgba(243,238,230,.35); padding: 3px 8px; margin-bottom: 8px;
    }
    .meta { font-size: 13px; color: #d9c5a4; margin: 6px 0 10px; }
    .dark {
      background: var(--dark); color: var(--cream); padding: 100px 0;
    }
    .dark .sec-head p { color: rgba(243,238,230,.72); }
    .case-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 40px; align-items: center; }
    .quote {
      font-family: "Noto Serif SC", serif; font-size: clamp(28px, 3.4vw, 46px); max-width: 8em;
    }
    .ba { position: relative; overflow: hidden; min-height: 420px; border: 1px solid #2c2620; }
    .ba img { width: 100%; height: 460px; object-fit: cover; }
    .ba .after { position: absolute; inset: 0; width: 52%; overflow: hidden; }
    .ba input[type=range] {
      position: absolute; inset: 0; width: 100%; height: 100%; opacity: 0; cursor: ew-resize; z-index: 3;
    }
    .ba-line {
      position: absolute; top: 0; bottom: 0; left: 52%; width: 1px; background: #e8d3b0; z-index: 2;
    }
    .case-list { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 28px; }
    .case-list li { border-top: 1px solid rgba(243,238,230,.16); padding-top: 12px; font-size: 14px; color: rgba(243,238,230,.8); }
    .case-list b { display: block; color: var(--cream); font-size: 16px; margin-bottom: 4px; }
    .table-wrap { overflow: auto; border: 1px solid var(--line); background: var(--paper); }
    table { width: 100%; border-collapse: collapse; min-width: 720px; }
    th, td { text-align: left; padding: 16px 18px; border-bottom: 1px solid var(--line); font-size: 15px; vertical-align: top; }
    th { background: var(--ink); color: var(--cream); font-weight: 600; }
    td:first-child { font-weight: 600; width: 22%; }
    .stories { display: grid; grid-template-columns: 1.3fr .7fr; gap: 16px; }
    .story-main, .story-side article {
      background: var(--paper); border: 1px solid var(--line); overflow: hidden;
    }
    .story-main img { width: 100%; height: 340px; object-fit: cover; }
    .story-main div, .story-side article { padding: 24px; }
    .story-side { display: grid; gap: 16px; }
    .stats {
      display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--line);
      border: 1px solid var(--line);
    }
    .stat {
      background: var(--paper); padding: 36px 20px; text-align: left;
    }
    .stat b { font-family: "Noto Serif SC", serif; font-size: 42px; display: block; }
    .stat span { color: var(--muted); font-size: 14px; }
    .reviews {
      display: grid; grid-template-columns: 1.2fr .8fr .9fr; grid-auto-rows: minmax(160px, auto); gap: 14px;
    }
    .rev { background: var(--paper); border: 1px solid var(--line); padding: 22px; }
    .rev:nth-child(1) { grid-row: span 2; }
    .rev:nth-child(4) { grid-column: 2 / span 2; }
    .badge {
      display: inline-block; font-size: 12px; letter-spacing: .08em; color: var(--bronze-deep);
      border: 1px solid var(--stone); padding: 2px 8px; margin-bottom: 10px; background: var(--gypsum);
    }
    .news-grid { display: grid; grid-template-columns: 1.3fr 1fr 1fr; gap: 16px; }
    .news a { display: block; }
    .news article { height: 100%; background: var(--paper); border: 1px solid var(--line); overflow: hidden; transition: transform .22s, border-color .22s; }
    .news article:hover { transform: translateY(-3px); border-color: var(--bronze); }
    .news img { width: 100%; height: 210px; object-fit: cover; }
    .news-body { padding: 18px; }
    .news time { font-size: 12px; color: var(--muted); letter-spacing: .08em; }
    .timeline { display: grid; gap: 0; }
    .step {
      display: grid; grid-template-columns: 90px 24px 1fr; gap: 18px; padding: 18px 0;
    }
    .step i {
      width: 10px; height: 10px; border: 1px solid var(--bronze); border-radius: 50%; display: block; margin: 8px auto 0;
      background: var(--paper); position: relative;
    }
    .step i::after {
      content: ""; position: absolute; top: 12px; left: 4px; width: 1px; height: calc(100% + 34px); background: var(--line);
    }
    .step:last-child i::after { display: none; }
    .step h3 { font-size: 20px; }
    .mats { display: grid; grid-template-columns: repeat(5, 1fr); min-height: 180px; }
    .mat { padding: 22px 18px; color: var(--cream); min-height: 180px; display: flex; flex-direction: column; justify-content: flex-end; }
    .mat h3 { font-size: 18px; margin-bottom: 8px; }
    .mat p { font-size: 13px; color: rgba(243,238,230,.82); }
    .m1 { background: #5c5348; }
    .m2 { background: #7a6248; }
    .m3 { background: #9a8b76; color: var(--ink); }
    .m3 p { color: #3d362e; }
    .m4 { background: #3f3831; }
    .m5 { background: #6d5a43; }
    .faq-item { border-bottom: 1px solid var(--line); }
    .faq-item button {
      width: 100%; text-align: left; background: transparent; border: 0; min-height: 64px;
      display: flex; justify-content: space-between; gap: 16px; align-items: center;
      font-size: 17px; font-weight: 600; padding: 16px 0;
    }
    .faq-item button span.ico { width: 18px; position: relative; flex: none; }
    .faq-item button span.ico::before, .faq-item button span.ico::after {
      content: ""; position: absolute; left: 0; right: 0; top: 8px; height: 1px; background: var(--ink);
    }
    .faq-item button span.ico::after { transform: rotate(90deg); transition: transform .25s; }
    .faq-item.is-open button span.ico::after { transform: rotate(0deg); }
    .faq-item .ans { max-height: 0; overflow: hidden; transition: max-height .28s var(--ease); color: var(--muted); font-size: 15px; }
    .faq-item.is-open .ans { max-height: 320px; padding-bottom: 16px; }
    .guard {
      display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px;
    }
    .guard article {
      border: 1px solid var(--line); background: var(--paper); padding: 20px 18px;
    }
    .consult {
      display: grid; grid-template-columns: .85fr 1.15fr; gap: 40px; align-items: start;
    }
    form {
      background: var(--paper); border: 1px solid var(--line); padding: 28px;
    }
    .fields { display: grid; grid-template-columns: 1fr 1fr; gap: 14px 16px; }
    label { display: block; font-size: 13px; margin-bottom: 6px; }
    input, select, textarea {
      width: 100%; min-height: 44px; border: 1px solid var(--line); background: var(--white);
      padding: 8px 12px; color: var(--ink); font-size: 15px;
    }
    textarea { min-height: 96px; resize: vertical; }
    .full { grid-column: 1 / -1; }
    .err { color: var(--err); font-size: 12px; min-height: 16px; margin-top: 4px; }
    .okbox { display: none; background: #e8f1eb; color: var(--ok); padding: 12px; margin-bottom: 12px; font-size: 14px; }
    .okbox.show { display: block; }
    .note { margin-top: 12px; color: var(--muted); font-size: 13px; }
    .site-footer {
      background: var(--ink); color: rgba(243,238,230,.78); padding: 64px 0 28px;
    }
    .foot-grid { display: grid; grid-template-columns: 1.3fr 1fr 1fr .9fr; gap: 28px; }
    .site-footer h3 { color: var(--cream); font-size: 16px; margin-bottom: 12px; }
    .site-footer a:hover { color: #e8d3b0; }
    .copy { margin-top: 36px; padding-top: 18px; border-top: 1px solid rgba(243,238,230,.12); font-size: 13px; }
    .dock {
      position: fixed; left: 0; right: 0; bottom: 0; z-index: 50;
      display: none; gap: 8px; justify-content: center; align-items: center;
      background: rgba(22,19,16,.94); color: var(--cream); padding: 8px 12px;
      min-height: 58px;
    }
    .dock.is-on { display: flex; }
    .dock a, .dock button {
      min-height: 44px; min-width: 44px; padding: 0 14px; display: inline-flex; align-items: center; justify-content: center;
      border: 1px solid rgba(243,238,230,.2); background: transparent; color: var(--cream); font-size: 14px;
    }
    .dock .btn-primary { border: 0; }
    #consult { padding-bottom: 140px; }
    .drawer {
      position: fixed; inset: 0; background: rgba(22,19,16,.5); z-index: 60; display: none;
    }
    .drawer.is-on { display: block; }
    .drawer nav {
      position: absolute; right: 0; top: 0; bottom: 0; width: min(82vw, 360px);
      background: var(--paper); color: var(--ink); padding: 28px 22px; overflow: auto;
    }
    .drawer a { display: block; padding: 14px 0; border-bottom: 1px solid var(--line); }
    .alt-sec { background: var(--paper); }
    .stone-sec { background: var(--gypsum); }
    @media (max-width: 1440px) {
      :root { --gutter: 64px; }
    }
    @media (max-width: 1024px) {
      :root { --gutter: 36px; }
      .offer-grid, .intro-grid, .case-grid, .stories, .consult, .foot-grid, .pkg-grid, .news-grid, .reviews, .craft-grid, .guard, .stats, .mats {
        grid-template-columns: 1fr 1fr;
      }
      .pkg.featured { grid-row: auto; min-height: 360px; }
      .pkg.featured img { min-height: 360px; }
      .hero, .hero-copy { min-height: 78vh; }
      .nav-links { display: none; }
      .burger { display: block; }
      .scope { display: none; }
      .reviews .rev:nth-child(1), .reviews .rev:nth-child(4) { grid-row: auto; grid-column: auto; }
    }
    @media (max-width: 768px) {
      :root { --gutter: 20px; }
      body { font-size: 16px; }
      .container { width: calc(100% - 40px); }
      .sec { padding: 64px 0; }
      .topbar { padding: 8px 20px; }
      .mainnav { padding: 0 12px 0 20px; }
      .hero, .hero-copy { min-height: 70vh; }
      .hero-copy { padding: 120px 20px 72px; }
      .series { left: 20px; right: 20px; top: 108px; }
      .hero-ctrl { right: 20px; bottom: 18px; }
      .offer-grid, .intro-grid, .case-grid, .stories, .consult, .foot-grid, .pkg-grid, .news-grid, .reviews, .craft-grid, .guard, .stats, .mats, .fields {
        grid-template-columns: 1fr;
      }
      .scene { flex-basis: 86%; }
      .scene img { height: 280px; }
      table { min-width: 0; }
      .table-wrap table, .table-wrap thead { display: none; }
      .m-cards { display: grid; gap: 10px; }
      .m-card { background: var(--paper); border: 1px solid var(--line); padding: 16px; }
      .m-card b { display: block; margin: 8px 0 4px; }
      .dock.is-on { display: flex; }
      .btn { width: auto; }
      form .btn { width: 100%; }
      .offer-main h2 { font-size: 30px; }
    }
    @media (max-width: 520px) {
      .hero h1 { font-size: 32px; }
      .stat b { font-size: 32px; }
      .series a { font-size: 11px; padding: 0 8px; }
    }
    @media (prefers-reduced-motion: reduce) {
      *, *::before, *::after {
        animation: none !important; transition: none !important; scroll-behavior: auto !important;
      }
      .slide img { transform: none; }
    }