/* roulang page: index */
:root{
      --ion:#1f8a6e;--ion-deep:#166f58;--ion-ink:#0f3d32;--ion-soft:#d7efe6;--ion-mid:#3aa384;
      --amber:#c4843c;--amber-deep:#a66b2a;--amber-soft:#f3e4cc;
      --ceramic:#f6f1e8;--ceramic-2:#efe8dc;--paper:#fbf7f0;--white:#fffcf7;
      --graphite:#1c1f1d;--graphite-2:#2a2e2b;--graphite-3:#3a403c;
      --ink:#2b2a26;--muted:#6b675f;--faint:#8f8a80;
      --silver:#d4d0c8;--line:#e7e1d6;--focus:#1f8a6e;
      --radius:10px;--radius-sm:6px;--radius-lg:12px;
      --shadow:0 8px 24px rgba(28,31,29,.07);--shadow-sm:0 4px 12px rgba(28,31,29,.05);
      --space:88px;--gap:18px;--container:1200px;
      --nav-h:68px;--top-h:40px;
      --font:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
    }
    *,*::before,*::after{box-sizing:border-box}
    html{scroll-behavior:smooth;scroll-padding-top:calc(var(--nav-h) + 8px)}
    html,body{margin:0;padding:0}
    body{
      font-family:var(--font);color:var(--ink);background:var(--ceramic);
      font-size:17px;line-height:1.78;font-weight:400;
      background-image:linear-gradient(rgba(28,31,29,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(28,31,29,.035) 1px,transparent 1px);
      background-size:32px 32px;overflow-x:hidden;
    }
    body.nav-lock{overflow:hidden}
    img{max-width:100%;height:auto;display:block;border:0}
    a{color:var(--ion-deep);text-decoration:none;transition:color .2s ease,background .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease}
    a:hover{color:var(--ion)}
    button,input,select,textarea{font-family:inherit;font-size:inherit}
    button{cursor:pointer;border:0;background:none}
    h1,h2,h3,h4{margin:0;letter-spacing:-.02em;line-height:1.28;font-weight:700;color:var(--graphite)}
    p{margin:0 0 1em}
    p:last-child{margin-bottom:0}
    ul,ol{margin:0;padding:0}
    :focus-visible{outline:2px solid var(--focus);outline-offset:3px}
    .skip{position:absolute;left:-999px;top:8px;background:var(--ion);color:#fff;padding:10px 14px;z-index:10000;border-radius:var(--radius-sm)}
    .skip:focus{left:8px}
    .container{width:min(var(--container),calc(100% - 40px));margin:0 auto}
    .num,.tabular{font-variant-numeric:tabular-nums lining-nums;white-space:nowrap}
    .muted{color:var(--muted)}
    .kicker{display:inline-flex;align-items:center;gap:8px;color:var(--ion-deep);font-size:13px;font-weight:600;letter-spacing:.08em;text-transform:none}
    .kicker::before{content:"";width:18px;height:2px;background:var(--ion);border-radius:2px}
    .section{padding:var(--space) 0;position:relative}
    .section-head{max-width:760px;margin-bottom:36px}
    .section-head h2{font-size:clamp(26px,3vw,36px);margin:10px 0 14px}
    .section-head p{color:var(--muted);font-size:16px;line-height:1.8}
    .section-alt{background:var(--paper)}
    .section-soft{background:linear-gradient(180deg,var(--ceramic-2),var(--ceramic))}
    .bar{display:inline-block;width:36px;height:3px;background:var(--ion);border-radius:2px;margin:10px 0 14px}
    .btn{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:0 18px;border-radius:8px;font-weight:600;line-height:1;border:1px solid transparent;transition:transform .18s ease,background .18s ease,border-color .18s ease,box-shadow .18s ease;gap:8px}
    .btn-primary{background:var(--ion);color:#fff;box-shadow:0 6px 16px rgba(31,138,110,.22)}
    .btn-primary:hover,.btn-primary:active{background:var(--ion-deep);color:#fff;transform:translateY(-2px)}
    .btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.45)}
    .btn-ghost:hover{background:rgba(255,255,255,.1);color:#fff;transform:translateY(-2px)}
    .btn-line{background:transparent;color:var(--graphite);border-color:var(--amber);color:var(--amber-deep)}
    .btn-line:hover{background:var(--amber-soft);transform:translateY(-2px)}
    .btn-dark{background:var(--graphite);color:#fff}
    .btn-dark:hover{background:#101311;color:#fff;transform:translateY(-2px)}
    .btn:active{transform:translateY(0)}
    .badge{display:inline-flex;align-items:center;min-height:28px;padding:0 8px;border:1px solid var(--silver);border-radius:4px;font-size:12px;color:var(--muted);background:rgba(255,252,247,.7);letter-spacing:.04em}
    .tag{display:inline-flex;align-items:center;min-height:32px;padding:0 10px;border-radius:6px;background:var(--ion-soft);color:var(--ion-ink);font-size:13px;font-weight:500}
    .tag-amber{background:var(--amber-soft);color:var(--amber-deep)}
    .site-header{position:relative;z-index:80}
    .topbar{height:var(--top-h);background:#f3eee4;border-bottom:1px solid var(--line);font-size:13px;color:var(--muted)}
    .topbar-inner{height:100%;display:flex;align-items:center;justify-content:space-between;gap:16px}
    .topbar-left,.topbar-right{display:flex;align-items:center;gap:16px;min-width:0}
    .topbar a{color:var(--ink);min-height:44px;display:inline-flex;align-items:center}
    .topbar a:hover{color:var(--ion-deep)}
    .dot-split{width:1px;height:12px;background:var(--silver)}
    .mainbar{position:sticky;top:0;z-index:90;height:var(--nav-h);background:rgba(251,247,240,.94);backdrop-filter:saturate(1.1);border-bottom:1px solid transparent;transition:border-color .2s ease,box-shadow .2s ease}
    .mainbar.is-scrolled{border-bottom-color:var(--silver);box-shadow:var(--shadow-sm)}
    .mainbar-inner{height:100%;display:flex;align-items:center;gap:20px}
    .logo{display:flex;align-items:center;gap:10px;color:var(--graphite);font-weight:700;font-size:18px;letter-spacing:-.03em;min-height:44px;flex:0 0 auto}
    .logo-mark{width:28px;height:28px;border-radius:6px;background:linear-gradient(135deg,var(--ion),var(--ion-deep));position:relative;box-shadow:inset 0 0 0 1px rgba(255,255,255,.2)}
    .logo-mark::after{content:"";position:absolute;inset:7px;border:1.5px solid #fff;border-radius:2px;opacity:.9}
    .nav-desk{display:flex;align-items:center;gap:4px;margin-left:auto}
    .nav-desk a{position:relative;min-height:44px;padding:0 10px;display:inline-flex;align-items:center;color:var(--ink);font-size:14px;font-weight:500}
    .nav-desk a:hover{color:var(--ion-deep)}
    .nav-desk a.is-active{color:var(--ion-deep)}
    .nav-desk a.is-active::after{content:"";position:absolute;left:10px;right:10px;bottom:8px;height:2px;background:var(--ion);border-radius:2px}
    .nav-cta{margin-left:8px}
    .nav-toggle{display:none;width:44px;height:44px;margin-left:auto;border:1px solid var(--silver);border-radius:8px;align-items:center;justify-content:center;flex-direction:column;gap:5px;background:var(--white)}
    .nav-toggle span{display:block;width:18px;height:2px;background:var(--graphite);border-radius:2px;transition:transform .2s ease,opacity .2s ease}
    .nav-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
    .nav-toggle.is-open span:nth-child(2){opacity:0}
    .nav-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
    .drawer{position:fixed;inset:0 0 0 auto;width:min(86vw,360px);background:var(--paper);z-index:120;transform:translateX(100%);transition:transform .28s ease;border-left:1px solid var(--silver);padding:88px 22px 28px;display:flex;flex-direction:column;gap:8px;box-shadow:-12px 0 40px rgba(28,31,29,.12)}
    .drawer.is-open{transform:translateX(0)}
    .drawer a{min-height:48px;display:flex;align-items:center;padding:0 10px;border-radius:8px;color:var(--ink);font-weight:600}
    .drawer a:hover,.drawer a.is-active{background:var(--ion-soft);color:var(--ion-ink)}
    .drawer .btn{width:100%;margin-top:10px}
    .drawer-mask{position:fixed;inset:0;background:rgba(28,31,29,.45);z-index:110;opacity:0;pointer-events:none;transition:opacity .2s ease}
    .drawer-mask.is-open{opacity:1;pointer-events:auto}
    .hero{position:relative;min-height:min(88vh,820px);background:var(--graphite);color:#fff;overflow:hidden}
    .hero-slides{position:absolute;inset:0}
    .hero-slide{position:absolute;inset:0;opacity:0;transition:opacity .7s ease;background-size:cover;background-position:center}
    .hero-slide.is-on{opacity:1;z-index:1}
    .hero-slide::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(22,24,23,.88) 0%,rgba(22,24,23,.62) 46%,rgba(22,24,23,.28) 100%)}
    .hero-copy{position:relative;z-index:3;padding:120px 0 96px;max-width:720px}
    .hero-copy .brand{font-size:13px;letter-spacing:.18em;color:var(--ion-soft);font-weight:600;margin-bottom:16px}
    .hero-copy h1,.hero-copy h2.slide-title{font-size:clamp(30px,4.4vw,50px);color:#fff;font-weight:700;margin-bottom:16px;max-width:16ch}
    .hero-lead{font-size:16px;line-height:1.85;color:rgba(255,252,247,.86);max-width:62ch;margin-bottom:22px}
    .hero-metrics{display:flex;flex-wrap:wrap;gap:10px 18px;margin:0 0 26px;padding:0;list-style:none}
    .hero-metrics li{min-height:44px;padding:8px 12px;border:1px solid rgba(212,208,200,.28);border-radius:8px;background:rgba(28,31,29,.28)}
    .hero-metrics b{display:block;font-size:18px;color:#fff}
    .hero-metrics span{font-size:12px;color:rgba(255,252,247,.7)}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px}
    .hero-ctrl{position:absolute;z-index:4;bottom:28px;left:0;right:0}
    .hero-ctrl-inner{display:flex;align-items:center;gap:12px}
    .hero-arrow{width:44px;height:44px;border:1px solid rgba(255,255,255,.35);border-radius:8px;color:#fff;display:inline-flex;align-items:center;justify-content:center;background:rgba(28,31,29,.25)}
    .hero-arrow:hover{background:rgba(31,138,110,.85);border-color:transparent}
    .hero-dots{display:flex;gap:8px;margin-left:8px}
    .hero-dots button{width:28px;height:44px;display:inline-flex;align-items:center}
    .hero-dots button i{display:block;width:22px;height:3px;background:rgba(255,255,255,.35);border-radius:2px}
    .hero-dots button.is-on i{background:var(--ion-mid)}
    .intro-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:center}
    .intro-visual{position:relative;border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--silver);box-shadow:var(--shadow)}
    .intro-visual img{width:100%;height:100%;object-fit:cover;min-height:420px}
    .intro-caption{position:absolute;left:12px;bottom:12px;background:rgba(28,31,29,.78);color:#fff;font-size:12px;padding:8px 10px;border-radius:6px}
    .param-panel{background:var(--white);border:1px solid var(--silver);border-radius:var(--radius-lg);padding:22px;box-shadow:var(--shadow-sm)}
    .param-row{display:grid;grid-template-columns:120px 1fr;gap:10px;padding:12px 0;border-bottom:1px solid var(--line);font-size:15px}
    .param-row:last-child{border-bottom:0}
    .param-row dt{color:var(--faint);font-weight:500}
    .param-row dd{margin:0;color:var(--ink);font-weight:600}
    .param-row dd .num{color:var(--amber-deep)}
    .tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
    .bento{display:grid;grid-template-columns:1.35fr 1fr 1fr;grid-template-rows:auto auto;gap:16px}
    .bento-card{background:var(--white);border:1px solid var(--silver);border-radius:var(--radius);padding:22px;transition:transform .18s ease,border-color .18s ease,box-shadow .18s ease;min-height:160px}
    .bento-card:hover{transform:translateY(-3px);border-color:var(--ion);box-shadow:var(--shadow-sm)}
    .bento-main{grid-row:1 / span 2;background:var(--graphite);color:#fff;border-color:var(--graphite-2);min-height:360px;display:flex;flex-direction:column;justify-content:flex-end}
    .bento-main h3,.bento-card h3{font-size:20px;margin:8px 0 10px}
    .bento-main h3{color:#fff}
    .bento-main p{color:rgba(255,252,247,.78);font-size:15px}
    .bento-card p{color:var(--muted);font-size:15px}
    .bento-card .bar{margin:8px 0 12px}
    .bento-link{margin-top:14px;font-weight:600;font-size:14px;color:var(--ion-deep);min-height:44px;display:inline-flex;align-items:center}
    .bento-main .bento-link{color:var(--ion-soft)}
    .process-strip{margin-top:16px;display:grid;grid-template-columns:repeat(4,1fr);border:1px solid var(--silver);border-radius:var(--radius);overflow:hidden;background:var(--white)}
    .process-strip div{padding:16px 18px;border-right:1px solid var(--line);min-height:88px}
    .process-strip div:last-child{border-right:0}
    .process-strip b{display:block;font-size:14px;color:var(--graphite)}
    .process-strip span{font-size:13px;color:var(--muted)}
    .adv-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .adv-card{background:var(--white);border:1px solid var(--silver);border-radius:var(--radius);padding:22px;transition:transform .18s ease,border-color .18s ease}
    .adv-card:hover{transform:translateY(-3px);border-color:var(--ion)}
    .adv-ico{width:40px;height:40px;border-radius:8px;background:var(--ion-soft);display:flex;align-items:center;justify-content:center;color:var(--ion-deep);font-weight:700;margin-bottom:8px}
    .adv-card h3{font-size:18px;margin:6px 0 8px}
    .adv-card .bar{margin:6px 0 10px}
    .adv-card p{font-size:15px;color:var(--muted)}
    .spark{height:28px;display:flex;align-items:flex-end;gap:3px;margin:8px 0 4px}
    .spark i{display:block;width:6px;background:var(--ion);border-radius:2px 2px 0 0;opacity:.75}
    .product-stage{display:grid;grid-template-columns:1.25fr 1fr;grid-template-rows:auto auto;gap:16px}
    .prod{background:var(--white);border:1px solid var(--silver);border-radius:var(--radius);overflow:hidden;display:flex;flex-direction:column;transition:transform .18s ease,border-color .18s ease}
    .prod:hover{transform:translateY(-3px);border-color:var(--ion)}
    .prod.large{grid-row:1 / span 2}
    .prod img{width:100%;height:220px;object-fit:cover}
    .prod.large img{height:280px}
    .prod-body{padding:18px 18px 20px;display:flex;flex-direction:column;gap:10px;flex:1}
    .prod h3{font-size:20px}
    .kv{display:grid;gap:6px;margin:4px 0 8px}
    .kv li{display:flex;justify-content:space-between;gap:12px;font-size:14px;border-bottom:1px dashed var(--line);padding:6px 0;list-style:none}
    .kv span{color:var(--muted)}
    .kv b{color:var(--ink);font-variant-numeric:tabular-nums;white-space:nowrap}
    .mat-track{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .mat-card{background:var(--white);border:1px solid var(--silver);border-radius:var(--radius);overflow:hidden}
    .mat-card img{width:100%;height:180px;object-fit:cover}
    .mat-card div{padding:18px}
    .mat-card h3{font-size:18px;margin-bottom:8px}
    .mat-card ul{padding-left:18px;color:var(--muted);font-size:15px}
    .mat-card li{margin:4px 0}
    .scene-grid{display:grid;grid-template-columns:1.1fr 1fr;gap:12px}
    .scene{position:relative;min-height:240px;border-radius:var(--radius);overflow:hidden;border:1px solid var(--silver)}
    .scene img{width:100%;height:100%;object-fit:cover;min-height:240px;filter:saturate(.9)}
    .scene figcaption{position:absolute;inset:auto 0 0 0;padding:18px;background:linear-gradient(180deg,transparent,rgba(22,24,23,.86));color:#fff}
    .scene h3{color:#fff;font-size:20px;margin-bottom:6px}
    .scene p{color:rgba(255,252,247,.82);font-size:14px}
    .scene.tall{grid-row:span 2;min-height:492px}
    .scene.tall img{min-height:492px}
    .stats{background:var(--graphite);color:#fff;padding:54px 0}
    .stats-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:12px}
    .stat{border:1px solid rgba(212,208,200,.18);border-radius:10px;padding:18px 12px;text-align:left;min-height:110px}
    .stat b{display:block;font-size:clamp(26px,3vw,34px);color:#fff;font-variant-numeric:tabular-nums;letter-spacing:-.03em}
    .stat b em{font-style:normal;color:var(--amber);font-size:.58em;margin-left:4px;white-space:nowrap}
    .stat span{display:block;margin-top:6px;color:rgba(255,252,247,.7);font-size:13px}
    .timeline{display:grid;grid-template-columns:repeat(6,1fr);gap:0;position:relative}
    .timeline::before{content:"";position:absolute;left:0;right:0;top:27px;height:2px;background:linear-gradient(90deg,var(--ion),var(--amber))}
    .step{padding:0 10px 0 0;position:relative}
    .step i{width:16px;height:16px;border-radius:50%;background:var(--ion);display:block;margin-bottom:18px;box-shadow:0 0 0 6px var(--ceramic)}
    .step h3{font-size:16px;margin-bottom:8px}
    .step p{font-size:14px;color:var(--muted)}
    .dark-wall{background:var(--graphite);color:#fff;padding:var(--space) 0;border-top:1px solid #2f3431}
    .dark-wall .section-head h2,.dark-wall h3{color:#fff}
    .dark-wall .section-head p{color:rgba(255,252,247,.72)}
    .case-layout{display:grid;grid-template-columns:76px 1fr;gap:28px;align-items:stretch}
    .v-quote{writing-mode:vertical-rl;letter-spacing:.22em;font-weight:700;font-size:18px;color:var(--ion-soft);border-right:1px solid rgba(212,208,200,.2);padding-right:18px}
    .mosaic{display:grid;grid-template-columns:1.4fr 1fr 1fr;grid-template-rows:210px 170px;gap:12px}
    .tile{position:relative;border-radius:10px;overflow:hidden;border:1px solid rgba(212,208,200,.2);min-height:160px;display:flex;align-items:flex-end;padding:14px;background:#262b28}
    .tile img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.72}
    .tile span,.tile strong{position:relative;z-index:1;color:#fff}
    .tile strong{display:block;font-size:16px}
    .tile span{font-size:12px;color:rgba(255,252,247,.75)}
    .tile.big{grid-row:1 / span 2}
    .tile.t1{background:linear-gradient(160deg,#2d4a41,#1c1f1d)}
    .tile.t2{background:linear-gradient(160deg,#4a3a28,#1c1f1d)}
    .tile.t3{background:linear-gradient(160deg,#2a3340,#1c1f1d)}
    .tile.t4{background:linear-gradient(160deg,#3a2f32,#1c1f1d)}
    .stories{display:grid;gap:16px}
    .story{display:grid;grid-template-columns:160px 1fr;gap:0;background:var(--white);border:1px solid var(--silver);border-radius:var(--radius);overflow:hidden}
    .story-side{background:var(--graphite);color:#fff;padding:22px;display:flex;flex-direction:column;justify-content:space-between}
    .story-side b{font-size:15px}
    .story-side span{font-size:13px;color:rgba(255,252,247,.7)}
    .story-body{padding:22px}
    .story-body q{display:block;font-size:17px;font-weight:600;color:var(--graphite);margin-bottom:10px}
    .spec-inline{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}
    .spec-inline span{border:1px solid var(--line);border-radius:6px;padding:6px 10px;font-size:13px;color:var(--muted);min-height:36px;display:inline-flex;align-items:center}
    .review-board{display:grid;grid-template-columns:1.15fr .85fr;gap:16px}
    .review{background:var(--white);border:1px solid var(--silver);border-radius:var(--radius);padding:22px;position:relative}
    .review.wide{grid-column:1 / -1}
    .review::before{content:"“";position:absolute;right:16px;top:0;font-size:72px;color:var(--ion-soft);line-height:1}
    .review p{position:relative;z-index:1}
    .review footer{margin-top:12px;font-size:13px;color:var(--muted)}
    .news-list{display:grid;grid-template-columns:1.2fr 1fr;gap:16px}
    .news-card{display:grid;grid-template-columns:92px 1fr;gap:16px;padding:18px;border:1px solid var(--silver);border-radius:var(--radius);background:var(--white)}
    .news-date{background:var(--graphite);color:#fff;border-radius:8px;display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:92px}
    .news-date b{font-size:22px;font-variant-numeric:tabular-nums}
    .news-date span{font-size:12px;color:rgba(255,252,247,.7)}
    .news-card h3{font-size:18px;margin-bottom:8px}
    .news-card p{font-size:14px;color:var(--muted)}
    .news-more{margin-top:16px}
    .logo-wall{display:grid;grid-template-columns:repeat(6,1fr);gap:12px}
    .logo-item{min-height:88px;border:1px solid var(--line);border-radius:8px;background:rgba(255,252,247,.7);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;color:var(--muted);font-size:13px;font-weight:600}
    .logo-item i{width:28px;height:8px;background:linear-gradient(90deg,var(--ion),var(--amber));border-radius:4px;display:block;opacity:.7}
    .faq-list{display:grid;gap:10px}
    .faq-item{border:1px solid var(--silver);border-radius:var(--radius);background:var(--white);overflow:hidden}
    .faq-item button{width:100%;min-height:56px;padding:14px 18px;display:flex;align-items:center;justify-content:space-between;gap:12px;text-align:left;font-weight:600;color:var(--graphite)}
    .faq-item button::after{content:"";width:10px;height:10px;border-right:2px solid var(--ion);border-bottom:2px solid var(--ion);transform:rotate(45deg);transition:transform .2s ease;flex:0 0 auto}
    .faq-item.is-open button::after{transform:rotate(225deg)}
    .faq-panel{display:none;padding:0 18px 16px;color:var(--muted);background:#f8f4ec;font-size:15px}
    .faq-item.is-open .faq-panel{display:block}
    .faq-panel ul{padding-left:18px;margin-top:8px}
    .trust{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
    .trust-item{border:1px solid var(--silver);background:var(--white);border-radius:var(--radius);padding:18px;min-height:120px}
    .trust-item h3{font-size:16px;margin-bottom:8px}
    .trust-item p{font-size:14px;color:var(--muted)}
    .contact{background:linear-gradient(160deg,#14352c,#1c1f1d 55%,#2a241b);color:#fff;padding:var(--space) 0 72px}
    .contact-grid{display:grid;grid-template-columns:1fr 1.05fr;gap:36px;align-items:start}
    .contact h2{color:#fff;font-size:clamp(26px,3vw,36px);margin:10px 0 14px}
    .contact p{color:rgba(255,252,247,.78)}
    .contact-meta{display:grid;gap:10px;margin-top:22px}
    .contact-meta a,.contact-meta span{color:#fff;min-height:44px;display:flex;align-items:center}
    .form{background:rgba(255,252,247,.06);border:1px solid rgba(212,208,200,.22);border-radius:12px;padding:22px}
    .field{margin-bottom:14px}
    .field label{display:block;margin-bottom:6px;font-size:14px;color:rgba(255,252,247,.8)}
    .field input,.field select,.field textarea{width:100%;min-height:46px;border-radius:8px;border:1px solid rgba(212,208,200,.3);background:rgba(28,31,29,.35);color:#fff;padding:10px 12px}
    .field textarea{min-height:110px;resize:vertical}
    .field input:focus,.field select:focus,.field textarea:focus{border-color:var(--ion-mid);outline:none;box-shadow:0 0 0 3px rgba(31,138,110,.25)}
    .field.is-err input,.field.is-err select,.field.is-err textarea{border-color:var(--amber)}
    .err{display:none;color:var(--amber-soft);font-size:12px;margin-top:6px}
    .field.is-err .err{display:block}
    .form-note{min-height:24px;font-size:14px;margin-top:8px}
    .form-note.ok{color:var(--ion-soft)}
    .form-note.bad{color:var(--amber-soft)}
    .site-footer{background:#141716;color:rgba(255,252,247,.72);padding:48px 0 24px;font-size:14px}
    .footer-grid{display:grid;grid-template-columns:1.3fr .9fr 1fr;gap:28px;margin-bottom:28px}
    .site-footer h3{color:#fff;font-size:16px;margin-bottom:12px}
    .site-footer a{color:rgba(255,252,247,.78);min-height:36px;display:inline-flex;align-items:center}
    .site-footer a:hover{color:#fff}
    .foot-links{display:flex;flex-direction:column}
    .legal{border-top:1px solid rgba(212,208,200,.12);padding-top:16px;display:flex;flex-wrap:wrap;gap:8px 18px;font-size:13px}
    @media (max-width:1280px){
      .stats-grid{grid-template-columns:repeat(3,1fr)}
      .logo-wall{grid-template-columns:repeat(3,1fr)}
    }
    @media (max-width:1024px){
      :root{--space:72px}
      .nav-desk{display:none}
      .nav-toggle{display:inline-flex}
      .intro-grid,.contact-grid,.case-layout,.scene-grid,.news-list,.review-board{grid-template-columns:1fr}
      .bento{grid-template-columns:1fr 1fr}
      .bento-main{grid-row:auto;grid-column:1 / -1;min-height:240px}
      .product-stage{grid-template-columns:1fr}
      .prod.large{grid-row:auto}
      .v-quote{writing-mode:horizontal-tb;border-right:0;border-bottom:1px solid rgba(212,208,200,.2);padding:0 0 12px;letter-spacing:.12em}
      .mosaic{grid-template-columns:1fr 1fr;grid-template-rows:auto}
      .tile.big{grid-row:auto;grid-column:1 / -1;min-height:240px}
      .scene.tall,.scene.tall img{min-height:240px;grid-row:auto}
      .timeline{grid-template-columns:1fr;gap:8px}
      .timeline::before{display:none}
      .step{display:grid;grid-template-columns:16px 1fr;gap:12px;padding:10px 0;border-left:0}
      .step i{margin:4px 0 0}
      .process-strip{grid-template-columns:1fr 1fr}
      .process-strip div{border-right:0;border-bottom:1px solid var(--line)}
      .mat-track{grid-template-columns:1fr}
      .hero-copy{padding:96px 0 120px}
    }
    @media (max-width:768px){
      :root{--space:64px}
      body{font-size:16px}
      .container{width:min(var(--container),calc(100% - 28px))}
      .topbar-hide,.dot-split.hide-m{display:none}
      .topbar{overflow-x:auto}
      .topbar-inner{min-width:max-content}
      .adv-grid,.trust,.stats-grid{grid-template-columns:1fr 1fr}
      .bento,.logo-wall,.process-strip{grid-template-columns:1fr}
      .story{grid-template-columns:1fr}
      .hero-copy h1,.hero-copy h2.slide-title{max-width:none}
      .param-row{grid-template-columns:1fr}
    }
    @media (max-width:520px){
      .adv-grid,.trust,.stats-grid,.review-board,.news-list,.mosaic{grid-template-columns:1fr}
      .hero-metrics{flex-direction:column}
      .hero-actions .btn{width:100%}
      .logo span{font-size:16px}
    }
    @media (prefers-reduced-motion:reduce){
      html{scroll-behavior:auto}
      *,*::before,*::after{animation:none !important;transition:none !important}
    }