/* roulang page: index */
:root{
  --ink:#101010;--paper:#F7F3EA;--paper-2:#EEE7D8;--accent:#E8452A;--moss:#1F4D43;--muted:#6B665C;--line:#D9D1C2;
  --serif:"Source Han Serif SC","Noto Serif SC","Songti SC",SimSun,serif;
  --sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  --r:4px;--ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-padding-top:88px}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--sans);font-size:16px;line-height:1.85;-webkit-font-smoothing:antialiased;overflow-x:hidden}
body.no-scroll{overflow:hidden}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;cursor:pointer;background:none;border:0}
h1,h2,h3{font-family:var(--serif);font-weight:700;margin:0;letter-spacing:-.015em}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
.tnum{font-variant-numeric:tabular-nums}

/* header */
.statusbar{background:var(--ink);color:var(--paper);font-size:12px;letter-spacing:.06em}
.statusbar .container{display:flex;align-items:center;justify-content:space-between;height:32px;gap:12px}
.status-live{display:flex;align-items:center;gap:8px;white-space:nowrap}
.dot{width:7px;height:7px;border-radius:50%;background:var(--accent);animation:pulse 1.8s var(--ease) infinite}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.35;transform:scale(.82)}}
.status-mid{display:none;gap:10px;color:#cfc7b7}
.status-mid a:hover{color:var(--paper);text-decoration:underline;text-underline-offset:4px}
.status-clock{font-family:var(--serif);font-size:13px;letter-spacing:.08em}
.navbar{position:sticky;top:0;z-index:60;background:var(--paper);transition:background .2s var(--ease),border-color .2s var(--ease)}
.navbar.is-scrolled{background:rgba(247,243,234,.92);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.navbar .container{display:flex;align-items:center;justify-content:space-between;height:66px;gap:16px}
.brand{font-family:var(--serif);font-size:17px;font-weight:700;letter-spacing:-.01em;display:inline-flex;align-items:center;flex-wrap:nowrap;white-space:nowrap}
.brand-em{background:var(--ink);color:var(--paper);padding:2px 6px;margin-left:3px;border-radius:2px;font-size:15px}
.nav-links{display:none;gap:26px;font-size:14px}
.nav-links a{position:relative;padding:6px 0;color:#2b2a27}
.nav-links a::after{content:"";position:absolute;left:0;bottom:0;width:100%;height:2px;background:var(--accent);transform:scaleX(0);transform-origin:left;transition:transform .2s var(--ease)}
.nav-links a:hover::after,.nav-links a.active::after{transform:scaleX(1)}
.nav-right{display:flex;align-items:center;gap:10px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:0 22px;border-radius:2px;font-size:14px;font-weight:600;letter-spacing:.02em;transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease)}
.btn-primary{background:var(--ink);color:var(--paper)}
.btn-primary:hover{background:var(--accent);color:var(--ink)}
.btn-ghost{background:transparent;border:1px solid var(--ink);color:var(--ink)}
.btn-ghost:hover{background:var(--ink);color:var(--paper)}
.btn-paper{background:var(--paper);color:var(--ink)}
.btn-paper:hover{background:var(--accent);color:var(--ink)}
.btn-sm{min-height:38px;padding:0 14px;font-size:13px}
.arrow{display:inline-block;transition:transform .2s var(--ease)}
.btn:hover .arrow{transform:translateX(4px)}
.burger{width:44px;height:44px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:5px}
.burger span{display:block;width:20px;height:1.5px;background:var(--ink);transition:transform .2s var(--ease)}
.drawer{position:fixed;inset:0;z-index:90;background:var(--paper);display:flex;flex-direction:column;padding:20px;transform:translateY(-100%);transition:transform .3s var(--ease);visibility:hidden}
.drawer.open{transform:translateY(0);visibility:visible}
.drawer-top{display:flex;align-items:center;justify-content:space-between}
.drawer-close{width:44px;height:44px;display:flex;align-items:center;justify-content:center;font-size:26px;line-height:1;color:var(--ink)}
.drawer-nav{margin-top:32px;display:flex;flex-direction:column}
.drawer-nav a{display:flex;align-items:center;gap:14px;min-height:60px;border-bottom:1px solid var(--line);font-family:var(--serif);font-size:20px}
.drawer-nav i{font-style:normal;font-family:var(--sans);font-size:12px;color:var(--muted);letter-spacing:.1em}
.drawer-cta{margin-top:auto;padding-top:20px;border-top:1px solid var(--line)}
.drawer-cta .btn{width:100%}

/* hero */
.hero{position:relative;overflow:hidden;padding:48px 0 56px}
.hero::after{content:"24H";position:absolute;top:-30px;right:-10px;font-family:var(--serif);font-size:clamp(120px,22vw,260px);line-height:1;color:var(--ink);opacity:.05;pointer-events:none;letter-spacing:-.04em}
.hero-grid{display:grid;grid-template-columns:1fr;gap:36px;position:relative;z-index:1}
.eyebrow{font-size:12px;letter-spacing:.16em;color:var(--muted);font-family:var(--sans)}
h1{font-size:clamp(2.05rem,6vw,3.4rem);line-height:1.12;margin:14px 0 18px;letter-spacing:-.02em;max-width:16em}
.hero-sub{font-size:15px;color:#3d3b36;max-width:34em;line-height:1.8}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin:26px 0 22px}
.hero-trust{display:flex;flex-wrap:wrap;gap:0;border-top:1px solid var(--line);padding-top:14px;font-size:13px;color:var(--muted)}
.hero-trust span{padding-right:16px;margin-right:16px;border-right:1px solid var(--line)}
.hero-trust span:last-child{border-right:0;margin-right:0;padding-right:0}
.monitor{border:1px solid var(--line);border-radius:var(--r);background:#fff;overflow:hidden}
.monitor-bar{display:flex;align-items:center;justify-content:space-between;padding:10px 14px;border-bottom:1px solid var(--line);font-size:11px;letter-spacing:.12em;color:var(--muted)}
.monitor-bar b{display:flex;align-items:center;gap:7px;color:var(--accent);font-weight:600}
.monitor-shot{position:relative;aspect-ratio:16/9;background:var(--paper-2);overflow:hidden}
.monitor-shot img{width:100%;height:100%;object-fit:cover}
.monitor-cap{display:flex;align-items:center;justify-content:space-between;padding:9px 14px;font-size:11px;color:var(--muted);border-top:1px solid var(--line);font-variant-numeric:tabular-nums}

/* section base */
.sec{padding:56px 0}
.sec-head{max-width:44em;margin-bottom:28px}
.sec-head h2{font-size:clamp(1.45rem,3.2vw,2.15rem);line-height:1.25;margin-bottom:12px}
.sec-head p{font-size:15px;color:var(--muted);line-height:1.85}
.gap-sm{margin-top:16px}

/* signal strip */
.signal{border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:26px 0}
.signal-grid{display:grid;grid-template-columns:1fr;gap:24px}
.ruler{position:relative}
.ruler-line{display:flex;justify-content:space-between;position:relative;padding-top:16px}
.ruler-line::before{content:"";position:absolute;top:5px;left:0;right:0;height:1px;background:var(--line)}
.ruler-line b{font-family:var(--serif);font-size:12px;color:var(--muted);font-variant-numeric:tabular-nums;letter-spacing:.06em}
.ruler-line b.now{color:var(--accent)}
.ruler-label{font-size:11px;letter-spacing:.14em;color:var(--muted);margin-bottom:2px}
.signal-items{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.signal-item{border-left:1px solid var(--line);padding-left:12px}
.signal-item span{display:block;font-size:11px;letter-spacing:.1em;color:var(--muted)}
.signal-item strong{font-family:var(--serif);font-size:15px;font-weight:700;letter-spacing:.01em}

/* bento */
.bento{display:grid;grid-template-columns:1fr;gap:14px}
.bento-card{border:1px solid var(--line);border-radius:var(--r);background:#fff;padding:22px;transition:border-color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease)}
.bento-card:hover{border-color:#bfb5a2;transform:translateY(-2px);box-shadow:0 10px 30px rgba(16,16,16,.07)}
.bento-card svg{stroke:var(--moss);fill:none;stroke-width:1.5;width:22px;height:22px;margin-bottom:14px}
.bento-card h3{font-size:18px;margin-bottom:8px;font-family:var(--sans);font-weight:700}
.bento-card p{font-size:14px;color:var(--muted);line-height:1.8}
.bento-wide{background:var(--paper-2);border-color:#ded5c3}
.bento-strip{display:grid;grid-template-columns:1fr;gap:14px}
.bento-strip .bento-card{padding:18px}
.bento-strip h3{font-size:16px}

/* scenes */
.scene-grid{display:grid;grid-template-columns:1fr;gap:28px}
.scene-intro h2{font-size:clamp(1.45rem,3.2vw,2.05rem);line-height:1.25}
.scene-intro p{margin-top:12px;font-size:14px;color:var(--muted);line-height:1.85}
.scene-cards{display:grid;grid-template-columns:1fr;gap:14px}
.scene-card{border:1px solid var(--line);border-radius:var(--r);padding:20px;background:#fff;transition:border-color .2s var(--ease)}
.scene-card:hover{border-color:#bfb5a2}
.scene-card h3{font-size:17px;font-family:var(--sans);font-weight:700;display:inline-block;position:relative}
.scene-card h3::after{content:"";position:absolute;left:0;bottom:-3px;width:100%;height:1px;background:var(--ink);transform:scaleX(0);transform-origin:left;transition:transform .18s var(--ease)}
.scene-card:hover h3::after{transform:scaleX(1)}
.scene-card p{font-size:14px;color:var(--muted);margin:10px 0 14px;line-height:1.8}
.scene-tags{display:flex;flex-wrap:wrap;gap:6px}
.tag{font-size:11px;letter-spacing:.04em;border:1px solid var(--line);border-radius:2px;padding:2px 8px;color:#4a473f;background:var(--paper)}
.scene-fig{margin-top:14px;aspect-ratio:4/3;overflow:hidden;border-radius:var(--r);border:1px solid var(--line)}
.scene-fig img{width:100%;height:100%;object-fit:cover;transition:transform .18s var(--ease)}
.scene-card:hover .scene-fig img{transform:scale(1.02)}

/* timetable */
.timeline{border-top:1px solid var(--line)}
.tl-row{display:grid;grid-template-columns:1fr;gap:4px;padding:16px 0 16px 14px;border-bottom:1px solid var(--line);position:relative;transition:background .2s var(--ease)}
.tl-row:hover{background:var(--paper-2)}
.tl-row.key::before{content:"";position:absolute;left:0;top:12px;bottom:12px;width:2px;background:var(--accent)}
.tl-time{font-family:var(--serif);font-size:14px;font-variant-numeric:tabular-nums;letter-spacing:.04em;color:var(--muted)}
.tl-main h3{font-size:17px;font-family:var(--sans);font-weight:700;line-height:1.5}
.tl-main p{font-size:13px;color:var(--muted);line-height:1.7;margin-top:2px}
.tl-side{display:flex;align-items:center;gap:14px;font-size:12px}
.badge-free{display:inline-block;background:var(--accent);color:#fff;font-size:11px;padding:1px 7px;border-radius:2px;letter-spacing:.05em}
.link-btn{color:var(--ink);border-bottom:1px solid var(--line);padding-bottom:1px;transition:border-color .2s var(--ease),color .2s var(--ease)}
.link-btn:hover{border-color:var(--accent);color:var(--accent)}

/* demo */
.demo-grid{display:grid;grid-template-columns:1fr;gap:26px}
.device{border:1px solid var(--line);border-radius:var(--r);background:#fff;overflow:hidden}
.device-bar{display:flex;align-items:center;gap:6px;padding:9px 12px;border-bottom:1px solid var(--line)}
.device-bar i{width:7px;height:7px;border-radius:50%;background:#cfc7b7;display:block}
.device-shot{aspect-ratio:16/10;overflow:hidden;background:var(--paper-2)}
.device-shot img{width:100%;height:100%;object-fit:cover}
.notes{display:flex;flex-direction:column;gap:18px}
.note{display:flex;gap:12px;align-items:flex-start;border-bottom:1px solid var(--line);padding-bottom:16px}
.note:last-child{border-bottom:0;padding-bottom:0}
.note i{font-style:normal;font-family:var(--serif);font-size:15px;color:var(--accent);font-variant-numeric:tabular-nums}
.note p{font-size:14px;line-height:1.75;color:#3d3b36}
.phone-wrap{margin-top:22px;display:flex;gap:20px;align-items:flex-end;flex-wrap:wrap}
.phone{width:170px;border:1px solid var(--line);border-radius:8px;background:#fff;overflow:hidden;flex-shrink:0}
.phone .device-shot{aspect-ratio:9/19}
.phone-cap{font-size:11px;color:var(--muted);padding:8px 10px;border-top:1px solid var(--line)}
.demo-hint{font-size:12px;color:var(--muted);margin-top:10px}

/* cases */
.case{border-top:1px solid var(--line);padding:26px 0;display:grid;grid-template-columns:1fr;gap:16px;align-items:start}
.case-num{font-family:var(--serif);font-size:44px;line-height:1;color:var(--ink);opacity:.22;font-variant-numeric:tabular-nums}
.case-body h3{font-size:19px;font-family:var(--sans);font-weight:700;margin-bottom:8px}
.case-body p{font-size:14px;color:var(--muted);line-height:1.85}
.case-metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.metric{border-left:1px solid var(--line);padding-left:10px}
.metric b{display:block;font-family:var(--serif);font-size:19px;font-variant-numeric:tabular-nums;letter-spacing:-.01em}
.metric span{font-size:11px;color:var(--muted);display:block;line-height:1.5}
.case-note{font-size:11px;color:var(--muted);margin-top:8px}

/* pricing */
.price-grid{display:grid;grid-template-columns:1fr;gap:16px}
.price-card{border:1px solid var(--line);border-radius:var(--r);background:#fff;padding:26px 22px;display:flex;flex-direction:column}
.price-card.dark{background:var(--ink);color:var(--paper);border-color:var(--ink)}
.price-card.dark .price-desc,.price-card.dark .price-list li{color:#c9c2b4}
.price-card.dark .price-list li svg{stroke:var(--accent)}
.price-label{display:inline-flex;align-items:center;gap:6px;font-size:11px;letter-spacing:.12em;margin-bottom:10px}
.price-label i{width:8px;height:8px;background:var(--accent);display:block;border-radius:1px}
.price-card h3{font-size:18px;font-family:var(--sans);font-weight:700}
.price-desc{font-size:13px;color:var(--muted);margin:8px 0 16px;line-height:1.75;min-height:44px}
.price-num{font-family:var(--serif);font-size:clamp(2.2rem,5vw,3.1rem);line-height:1;font-variant-numeric:tabular-nums;letter-spacing:-.02em}
.price-num small{font-size:13px;font-family:var(--sans);letter-spacing:0;margin-left:4px;color:var(--muted)}
.price-card.dark .price-num small{color:#a8a193}
.price-list{margin:20px 0 24px;display:flex;flex-direction:column;gap:10px}
.price-list li{display:flex;gap:9px;font-size:13.5px;line-height:1.6;color:#3d3b36}
.price-list svg{width:13px;height:13px;flex-shrink:0;margin-top:5px;stroke:var(--moss);fill:none;stroke-width:1.8}
.price-card .btn{width:100%;margin-top:auto}
.price-foot{font-size:12px;color:var(--muted);margin-top:18px}

/* reviews */
.reviews{columns:1;column-gap:16px}
.review{break-inside:avoid;border:1px solid var(--line);border-radius:var(--r);background:#fff;padding:20px;margin-bottom:16px;transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease)}
.review:hover{transform:translateY(-2px);box-shadow:0 10px 30px rgba(16,16,16,.07);border-color:#bfb5a2}
.review q{display:block;font-size:15.5px;line-height:1.7;quotes:"“" "”";color:#26251f}
.review q::before{font-family:var(--serif);font-size:30px;color:var(--accent);display:block;line-height:.6;margin-bottom:8px;content:"“"}
.review-meta{margin-top:12px;font-size:12px;color:var(--muted);letter-spacing:.03em}

/* stats band */
.stats-band{border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:40px 0}
.stats-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.stat b{display:block;font-family:var(--serif);font-size:clamp(1.9rem,4.5vw,2.8rem);line-height:1.05;font-variant-numeric:tabular-nums;letter-spacing:-.02em}
.stat small{font-size:12px;color:var(--muted);letter-spacing:.04em}
.stat span{display:block;font-size:13px;color:var(--muted);margin-top:6px}
.quote-band{margin-top:32px;border-left:2px solid var(--accent);padding-left:18px}
.quote-band p{font-family:var(--serif);font-size:clamp(1.05rem,2.6vw,1.4rem);line-height:1.6}
.quote-band small{display:block;margin-top:10px;font-size:12px;color:var(--muted)}

/* steps */
.steps{display:grid;grid-template-columns:1fr;gap:0}
.step{padding:22px 0;position:relative;padding-left:18px;border-left:1px solid var(--line)}
.step b{font-family:var(--serif);font-size:26px;color:var(--accent);font-variant-numeric:tabular-nums;display:block;line-height:1}
.step h3{font-size:17px;font-family:var(--sans);font-weight:700;margin:8px 0 6px}
.step p{font-size:14px;color:var(--muted);line-height:1.8}
.steps-foot{margin-top:24px;font-size:14px}

/* articles */
.feature{display:grid;grid-template-columns:1fr;gap:18px;border-bottom:1px solid var(--line);padding-bottom:26px}
.feature-fig{aspect-ratio:4/3;border-radius:var(--r);overflow:hidden;border:1px solid var(--line)}
.feature-fig img{width:100%;height:100%;object-fit:cover;transition:transform .18s var(--ease)}
.feature:hover .feature-fig img{transform:scale(1.02)}
.meta-line{display:flex;flex-wrap:wrap;gap:10px;font-size:11px;color:var(--muted);letter-spacing:.06em;margin-bottom:10px}
.meta-line span{border:1px solid var(--line);border-radius:2px;padding:1px 7px}
.feature h3{font-size:21px;font-family:var(--sans);font-weight:700;line-height:1.5}
.feature:hover h3{text-decoration:underline;text-underline-offset:4px}
.feature p{font-size:14px;color:var(--muted);margin-top:8px;line-height:1.85}
.art-list{margin-top:6px}
.art{display:grid;grid-template-columns:1fr;gap:10px;padding:18px 0;border-bottom:1px solid var(--line);transition:background .2s var(--ease)}
.art:hover{background:var(--paper-2)}
.art-date{font-family:var(--serif);font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums;letter-spacing:.04em}
.art h3{font-size:16px;font-family:var(--sans);font-weight:700;line-height:1.55}
.art:hover h3{text-decoration:underline;text-underline-offset:3px}
.art p{font-size:13px;color:var(--muted);line-height:1.7;margin-top:4px}
.art-fig{aspect-ratio:4/3;border-radius:var(--r);overflow:hidden;border:1px solid var(--line);max-width:180px}
.art-fig img{width:100%;height:100%;object-fit:cover;transition:transform .18s var(--ease)}
.art:hover .art-fig img{transform:scale(1.02)}

/* faq */
.faq-grid{display:grid;grid-template-columns:1fr;gap:28px}
.faq-intro h2{font-size:clamp(1.45rem,3.2vw,2.05rem);line-height:1.25}
.faq-intro p{margin-top:12px;font-size:14px;color:var(--muted);line-height:1.85}
details{border-bottom:1px solid var(--line)}
details:first-of-type{border-top:1px solid var(--line)}
summary{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:60px;padding:14px 0;cursor:pointer;list-style:none;font-size:15.5px;font-weight:600;line-height:1.6}
summary::-webkit-details-marker{display:none}
summary i{font-style:normal;font-size:20px;line-height:1;color:var(--muted);transition:transform .2s var(--ease),color .2s var(--ease);flex-shrink:0}
details[open] summary i{transform:rotate(45deg);color:var(--accent)}
.faq-a{padding:0 0 18px;font-size:14px;color:var(--muted);line-height:1.85;max-width:60ch}

/* compliance */
.compliance{background:var(--paper-2);padding:40px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.comp-inner{display:grid;grid-template-columns:1fr;gap:20px;border-left:2px solid var(--moss);padding-left:18px}
.comp-label{font-size:11px;letter-spacing:.14em;color:var(--moss);font-weight:600}
.comp-inner h2{font-size:clamp(1.3rem,2.8vw,1.7rem);line-height:1.35;margin:6px 0 4px}
.comp-list{display:grid;grid-template-columns:1fr;gap:14px}
.comp-list li{font-size:13.5px;line-height:1.8;color:#3d3b36;padding-left:12px;position:relative}
.comp-list li::before{content:"";position:absolute;left:0;top:9px;width:5px;height:5px;background:var(--moss);border-radius:1px}

/* cta */
.cta{background:var(--ink);color:var(--paper);position:relative;overflow:hidden;padding:56px 0}
.cta::after{content:"24H";position:absolute;right:-20px;bottom:-60px;font-family:var(--serif);font-size:clamp(140px,26vw,300px);line-height:1;color:var(--paper);opacity:.07;pointer-events:none;letter-spacing:-.05em}
.cta-inner{position:relative;z-index:1;max-width:40em}
.cta h2{font-size:clamp(1.6rem,4.2vw,2.6rem);line-height:1.22;margin-bottom:14px}
.cta p{font-size:14.5px;color:#c9c2b4;line-height:1.85;max-width:36em}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;margin:26px 0 28px}
.reminder{border-top:1px solid rgba(247,243,234,.18);padding-top:22px;max-width:480px}
.reminder label{display:block;font-size:12px;letter-spacing:.08em;color:#a8a193;margin-bottom:10px}
.reminder-row{display:flex;flex-wrap:wrap;gap:14px;align-items:flex-end}
.reminder input{flex:1 1 200px;min-width:0;min-height:44px;background:transparent;border:0;border-bottom:1px solid rgba(247,243,234,.4);color:var(--paper);font-size:15px;padding:6px 2px;transition:border-color .2s var(--ease)}
.reminder input::placeholder{color:rgba(247,243,234,.4)}
.reminder input:focus{outline:none;border-bottom-color:var(--accent)}
.reminder .btn{flex-shrink:0}
.reminder .helper{font-size:12px;color:#8e887b;margin-top:10px}
.reminder .err{font-size:12px;color:var(--accent);margin-top:8px;min-height:16px}

/* footer */
.site-footer{background:var(--ink);color:var(--paper);padding:48px 0 0}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px;padding-bottom:36px}
.footer-brand h2{font-family:var(--serif);font-size:18px;line-height:1.5;font-weight:700}
.footer-brand p{font-size:13px;color:#a8a193;line-height:1.85;margin-top:12px;max-width:30em}
.footer-live{display:flex;align-items:center;gap:8px;margin-top:16px;font-size:12px;color:#a8a193;letter-spacing:.08em}
.footer-col h3{font-family:var(--sans);font-size:12px;letter-spacing:.12em;color:#8e887b;font-weight:600;margin-bottom:14px}
.footer-col a{display:flex;align-items:center;min-height:44px;font-size:13.5px;color:#d6cec0;transition:color .2s var(--ease)}
.footer-col a:hover{color:var(--paper);text-decoration:underline;text-underline-offset:4px}
.footer-bottom{border-top:1px solid rgba(247,243,234,.14);padding:18px 0;display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;font-size:12px;color:#8e887b;line-height:1.7}

@media (min-width:768px){
  .status-mid{display:flex}
  .hero-grid{grid-template-columns:7fr 5fr;gap:32px;align-items:start}
  .signal-grid{grid-template-columns:5fr 7fr;align-items:center;gap:32px}
  .signal-items{grid-template-columns:repeat(4,1fr)}
  .bento{grid-template-columns:repeat(6,1fr)}
  .bento-wide{grid-column:span 6}
  .bento-card.mid{grid-column:span 3}
  .bento-strip{grid-column:span 6;grid-template-columns:repeat(3,1fr)}
  .scene-cards{grid-template-columns:repeat(2,1fr)}
  .scene-card.wide{grid-column:span 2}
  .tl-row{grid-template-columns:88px 1fr auto;gap:16px;align-items:center;padding:18px 0 18px 14px}
  .tl-main p{margin-top:2px}
  .demo-grid{grid-template-columns:8fr 4fr;gap:32px}
  .case{grid-template-columns:70px 1fr;gap:24px;padding:30px 0}
  .case-metrics{grid-column:2;grid-template-columns:repeat(3,minmax(0,1fr))}
  .price-grid{grid-template-columns:repeat(3,1fr)}
  .reviews{columns:2}
  .stats-grid{grid-template-columns:repeat(4,1fr);gap:20px}
  .steps{grid-template-columns:repeat(3,1fr)}
  .step{border-left:1px solid var(--line);padding:6px 20px 6px 20px}
  .step:first-child{border-left:0;padding-left:0}
  .feature{grid-template-columns:4fr 8fr;gap:24px;align-items:center}
  .art{grid-template-columns:90px 1fr 140px;gap:20px;align-items:center}
  .faq-grid{grid-template-columns:4fr 8fr;gap:40px}
  .comp-inner{grid-template-columns:5fr 7fr;gap:28px;align-items:start}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr;gap:28px}
}
@media (min-width:1024px){
  .container{padding:0 48px}
  .sec{padding:88px 0}
  .hero{padding:64px 0 76px}
  .nav-links{display:flex}
  .burger{display:none}
  .reviews{columns:3}
  .case{grid-template-columns:80px 1fr auto;gap:32px}
  .case-metrics{grid-column:auto;grid-template-columns:repeat(3,minmax(0,1fr));min-width:260px}
  .bento-card.mid{grid-column:span 3}
  .bento-strip{grid-template-columns:repeat(3,1fr)}
  .scene-grid{grid-template-columns:4fr 8fr;gap:40px}
  .scene-intro{position:sticky;top:104px}
  .cta{padding:88px 0}
  .review q{font-size:16px}
}
@media (max-width:519px){
  .brand{font-size:15px}
  .brand-em{font-size:13px;padding:1px 5px}
  .hero-trust span{font-size:12px;padding-right:10px;margin-right:10px}
  .case-metrics{grid-template-columns:1fr 1fr}
  .phone{width:140px}
  .art-fig{max-width:120px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}
  .reveal{opacity:1!important;transform:none!important}
}
.reveal{opacity:0;transform:translateY(10px);transition:opacity .5s var(--ease),transform .5s var(--ease)}
.reveal.in{opacity:1;transform:none}

/* roulang page: index */
:root{
  --paper:#F6F3EC;--paper-2:#EFEAE0;--card:#FBF9F5;
  --ink:#111111;--ink-2:#5F5B54;--line:rgba(17,17,17,.14);
  --teal:#0F8B8D;--orange:#E4572E;
  --serif:"Noto Serif SC","Songti SC","SimSun",serif;
  --sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --r:2px;--max:1240px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:88px}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--sans);font-size:16px;line-height:1.9;font-weight:400;-webkit-font-smoothing:antialiased}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
ul,ol{padding:0;margin:0;list-style:none}
h1,h2,h3,p{margin:0}
figure{margin:0}
button{border:0;background:none;cursor:pointer;font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--teal);outline-offset:3px}
.container{width:100%;max-width:var(--max);margin:0 auto;padding:0 48px}
.skip{position:absolute;left:-9999px;top:0;background:var(--ink);color:var(--paper);padding:10px 16px;z-index:120}
.skip:focus{left:12px;top:12px}

/* header */
.site-header{position:sticky;top:0;z-index:60;background:var(--paper);border-bottom:1px solid var(--line)}
.topbar{border-bottom:1px solid var(--line)}
.topbar-in{display:flex;align-items:center;justify-content:space-between;height:32px;font-size:11px;letter-spacing:.14em;color:var(--ink-2)}
.live{display:inline-flex;align-items:center;gap:8px}
.dot{width:6px;height:6px;border-radius:999px;background:var(--teal);flex:none}
.header-in{display:flex;align-items:center;justify-content:space-between;height:72px;transition:height .2s ease}
.site-header.compact .header-in{height:56px}
.brand{display:flex;align-items:center;gap:12px}
.brand-mark{width:40px;height:40px;background:var(--ink);color:var(--paper);display:grid;place-items:center;font-family:var(--serif);font-size:14px;border-radius:var(--r);flex:none}
.brand-text{font-size:13px;line-height:1.2;font-weight:500;letter-spacing:.02em}
.nav{display:flex;gap:28px}
.nav a{position:relative;font-size:14px;color:var(--ink-2);padding:6px 0;transition:color .2s}
.nav a::after{content:"";position:absolute;left:0;bottom:0;width:0;height:1px;background:var(--teal);transition:width .2s ease}
.nav a:hover{color:var(--ink)}
.nav a:hover::after{width:100%}
.nav a[aria-current="true"]{color:var(--ink)}
.nav a[aria-current="true"]::after{width:100%}
.header-actions{display:flex;align-items:center;gap:12px}
.menu-btn{display:none;width:44px;height:44px;align-items:center;justify-content:center;flex-direction:column;gap:5px;border:1px solid var(--line);border-radius:var(--r)}
.menu-btn span{display:block;width:18px;height:1px;background:var(--ink)}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;height:48px;padding:0 24px;font-size:15px;border-radius:var(--r);border:1px solid transparent;transition:background .16s,color .16s,transform .16s,border-color .16s;min-height:44px}
.btn-primary{background:var(--ink);color:var(--paper)}
.btn-primary:hover{background:var(--teal);color:#fff;transform:translateY(-1px)}
.btn-primary:active{transform:none}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-ghost{background:transparent;border-color:var(--ink);color:var(--ink)}
.btn-ghost:hover{background:var(--ink);color:var(--paper)}
.btn-light{background:var(--paper);color:var(--ink)}
.btn-light:hover{background:var(--teal);color:#fff;transform:translateY(-1px)}
.btn-outline-light{background:transparent;border-color:rgba(246,243,236,.55);color:var(--paper)}
.btn-outline-light:hover{background:var(--paper);color:var(--ink)}
.link-arrow{font-size:15px;border-bottom:1px solid var(--ink);padding-bottom:2px;transition:color .2s,border-color .2s}
.link-arrow:hover{color:var(--teal);border-color:var(--teal)}

/* drawer */
.drawer{position:fixed;inset:0;z-index:100;background:var(--paper);padding:20px;display:flex;flex-direction:column;gap:24px;opacity:0;visibility:hidden;pointer-events:none;transition:opacity .2s ease,visibility .2s}
.drawer.open{opacity:1;visibility:visible;pointer-events:auto}
.drawer-top{display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);padding-bottom:16px}
.drawer-top .brand-text{font-size:13px}
.drawer-close{width:44px;height:44px;font-size:24px;line-height:1;border:1px solid var(--line);border-radius:var(--r)}
.drawer-nav{display:flex;flex-direction:column}
.drawer-nav a{display:flex;align-items:center;gap:16px;font-family:var(--serif);font-size:24px;padding:16px 0;border-bottom:1px solid var(--line);min-height:44px}
.drawer-nav a span{font-family:var(--sans);font-size:11px;letter-spacing:.16em;color:var(--ink-2)}
.drawer .btn{width:100%}
body.no-scroll{overflow:hidden}

/* sections */
.section{padding:104px 0;border-top:1px solid var(--line)}
.section.tint{background:var(--card)}
.sec-head{max-width:860px;margin-bottom:48px}
.kicker{font-size:11px;letter-spacing:.18em;color:var(--ink-2);margin-bottom:14px}
h2{font-family:var(--serif);font-weight:600;font-size:clamp(28px,4vw,48px);line-height:1.15;letter-spacing:-.01em;margin-bottom:16px}
.sec-desc{color:var(--ink-2);max-width:720px}

/* hero */
.hero{padding:72px 0 96px}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center;min-height:78vh}
.badge{display:inline-flex;align-items:center;gap:8px;font-size:11px;letter-spacing:.16em;color:var(--ink-2);border:1px solid var(--line);border-radius:999px;padding:6px 14px;margin-bottom:26px}
h1{font-family:var(--serif);font-weight:600;font-size:clamp(42px,6.6vw,80px);line-height:1.02;letter-spacing:-.02em;margin-bottom:24px}
.hero-sub{font-size:17px;color:var(--ink-2);max-width:560px;margin-bottom:32px}
.hero-actions{display:flex;align-items:center;gap:24px;flex-wrap:wrap}
.chips{display:flex;gap:20px;margin-top:36px;flex-wrap:wrap}
.chips li{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--ink-2);letter-spacing:.04em}
.hero-visual{position:relative}
.hero-shot{border:1px solid var(--line);border-radius:var(--r);overflow:hidden;background:var(--paper-2)}
.hero-shot img{aspect-ratio:16/10;object-fit:cover;width:100%}
.hero-shot figcaption{font-size:11px;letter-spacing:.16em;color:var(--ink-2);padding:10px 12px;border-top:1px solid var(--line);background:var(--paper)}
.hero-mini{position:absolute;right:-10px;bottom:-40px;width:38%;border:4px solid var(--paper);border-radius:var(--r);overflow:hidden;background:var(--paper-2)}
.hero-mini img{aspect-ratio:9/16;object-fit:cover;width:100%}

/* status bar */
.statusbar{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--paper-2);padding:44px 0}
.statusbar-top{display:flex;align-items:baseline;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:28px}
.statusbar h2{font-size:clamp(22px,2.6vw,30px);margin:0}
.statusbar-top a{font-size:13px;color:var(--ink-2);border-bottom:1px solid var(--line)}
.statusbar-top a:hover{color:var(--teal);border-color:var(--teal)}
.stats{display:grid;grid-template-columns:repeat(4,1fr)}
.stats li{padding:0 26px;border-left:1px solid var(--line)}
.stats li:first-child{padding-left:0;border-left:0}
.stat-num{display:block;font-family:var(--serif);font-size:clamp(28px,3.4vw,40px);font-weight:500;line-height:1.1;font-variant-numeric:tabular-nums}
.stat-desc{display:block;font-size:13px;color:var(--ink-2);margin-top:6px}

/* bento */
.bento{display:grid;grid-template-columns:repeat(12,1fr);gap:24px}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:28px;transition:border-color .2s,transform .2s}
.card:hover{border-color:rgba(17,17,17,.42);transform:translateY(-2px)}
.card h3{font-size:19px;line-height:1.4;font-weight:600;margin-bottom:10px}
.card p{font-size:15px;color:var(--ink-2);line-height:1.85}
.bento-lg{grid-column:span 6;padding:0;overflow:hidden}
.bento-lg .bento-media{border-bottom:1px solid var(--line);background:var(--paper-2)}
.bento-lg .bento-media img{aspect-ratio:4/3;object-fit:cover;width:100%}
.bento-lg .bento-body{padding:26px 28px 28px}
.bento-sm{grid-column:span 3}
.icon{width:24px;height:24px;stroke:var(--ink);fill:none;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round;margin-bottom:16px}
.bento-lg .icon{margin-top:0}

/* scenes */
.scenes{display:grid;grid-template-columns:4fr 8fr;gap:32px;align-items:start}
.scenes-head{position:sticky;top:100px}
.scene-track{display:flex;gap:24px;overflow-x:auto;padding-bottom:16px;scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch}
.scene-card{flex:0 0 320px;scroll-snap-align:start;border:1px solid var(--line);border-radius:var(--r);background:var(--card);overflow:hidden;transition:border-color .2s}
.scene-card.is-active{border-color:var(--teal)}
.scene-card img{aspect-ratio:4/3;object-fit:cover;width:100%}
.scene-body{padding:20px 24px 24px}
.scene-time{font-size:11px;letter-spacing:.12em;color:var(--orange);font-variant-numeric:tabular-nums;display:block;margin-bottom:8px}
.scene-body h3{font-size:18px;line-height:1.4;font-weight:600;margin-bottom:8px}
.scene-body p{font-size:14px;color:var(--ink-2);line-height:1.8;border-top:1px solid var(--line);padding-top:12px;margin-top:12px}

/* demo */
.demo-grid{display:grid;grid-template-columns:5fr 7fr;gap:48px;align-items:start}
.demo-sticky{position:sticky;top:100px}
.step{display:flex;gap:20px;padding:22px 0;border-top:1px solid var(--line)}
.step-n{font-family:var(--serif);font-size:34px;line-height:1;font-weight:500;font-variant-numeric:tabular-nums;flex:none}
.step h3{font-size:17px;font-weight:600;margin-bottom:4px}
.step p{font-size:15px;color:var(--ink-2)}
.demo-stage{position:relative;background:var(--paper-2);border:1px solid var(--line);border-radius:var(--r);padding:20px}
.browser{border:1px solid var(--line);border-radius:var(--r);overflow:hidden;background:var(--card)}
.browser-bar{height:30px;border-bottom:1px solid var(--line);display:flex;align-items:center;gap:6px;padding:0 12px}
.browser-bar i{width:6px;height:6px;border-radius:999px;background:var(--line);display:block}
.browser-body{padding:16px;display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.sk{background:#E2DCD0;border-radius:2px;height:52px}
.sk.wide{grid-column:span 3;height:auto;aspect-ratio:16/9;background:#DBD4C7}
.phone-stack{display:flex;gap:12px;justify-content:flex-end;margin-top:16px}
.phone{width:88px;border:1px solid var(--line);border-radius:8px;background:var(--card);padding:6px;display:grid;gap:6px}
.phone i{display:block;height:8px;background:#E2DCD0;border-radius:2px}
.phone i.tall{height:44px}
.demo-note{font-size:12px;letter-spacing:.08em;color:var(--ink-2);margin-top:16px}

/* index list */
.idx-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 48px}
.idx-row{display:flex;align-items:center;justify-content:space-between;gap:16px;height:56px;border-top:1px solid var(--line);font-size:16px;transition:background .2s,transform .2s}
.idx-row:hover{background:var(--paper-2);transform:translateX(4px)}
.idx-row span.no{font-size:12px;letter-spacing:.12em;color:var(--ink-2);font-variant-numeric:tabular-nums;margin-left:auto;margin-right:12px}
.idx-row span.ar{color:var(--ink-2)}

/* cases */
.case{display:grid;grid-template-columns:5fr 7fr;gap:48px;align-items:center;margin-bottom:96px}
.case.rev{grid-template-columns:7fr 5fr}
.case.rev figure{order:2}
.case figure{overflow:hidden;border:1px solid var(--line);border-radius:var(--r)}
.case img{aspect-ratio:3/2;object-fit:cover;width:100%;transition:transform .4s ease}
.case figure:hover img{transform:scale(1.02)}
.case h3{font-size:20px;font-weight:600;line-height:1.4;margin-bottom:10px}
.case-meta{font-size:12px;letter-spacing:.08em;color:var(--ink-2);margin-bottom:14px;font-variant-numeric:tabular-nums}
.case p{font-size:15px;color:var(--ink-2)}
.quote{border-left:2px solid var(--teal);padding-left:16px;margin-top:18px;font-size:15px;color:var(--ink)}

/* plans */
.plans{display:grid;grid-template-columns:5fr 7fr;gap:24px;align-items:start}
.free-card{background:var(--ink);color:var(--paper);border-radius:var(--r);padding:40px 32px}
.free-card .price{font-family:var(--serif);font-size:72px;line-height:1;font-weight:500;font-variant-numeric:tabular-nums}
.free-card .price small{font-size:15px;font-family:var(--sans);font-weight:400;letter-spacing:.06em;margin-left:8px}
.free-card h3{font-size:20px;margin:16px 0 10px;font-weight:600}
.free-card p{font-size:14px;color:rgba(246,243,236,.72)}
.free-card ul{margin-top:24px;border-top:1px solid rgba(246,243,236,.2);padding-top:20px;display:grid;gap:12px}
.free-card li{display:flex;gap:10px;font-size:14px;color:rgba(246,243,236,.9)}
.addon-stack{display:grid;gap:24px}
.addon{border:1px solid var(--line);border-radius:var(--r);padding:26px 28px;background:var(--card);transition:border-color .2s,transform .2s}
.addon:hover{border-color:rgba(17,17,17,.42);transform:translateY(-2px)}
.addon h3{font-size:19px;font-weight:600;margin-bottom:8px}
.addon p{font-size:15px;color:var(--ink-2);margin-bottom:14px}
.addon .tagline{font-size:12px;letter-spacing:.08em;color:var(--teal);border:1px solid rgba(15,139,141,.4);border-radius:var(--r);padding:2px 8px;display:inline-block;margin-bottom:12px}
.check{width:14px;height:14px;stroke:currentColor;fill:none;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;flex:none;margin-top:6px}

/* reviews */
.reviews{columns:3;column-gap:16px}
.review{border:1px solid var(--line);border-radius:var(--r);background:var(--card);padding:20px 22px;margin-bottom:16px;break-inside:avoid;transition:transform .2s,border-color .2s}
.review:hover{transform:translateY(-2px);border-color:rgba(17,17,17,.42)}
.review p{font-size:15px;line-height:1.85;color:var(--ink-2)}
.review .who{display:flex;align-items:center;gap:10px;margin-top:16px;padding-top:14px;border-top:1px solid var(--line)}
.avatar{width:32px;height:32px;border-radius:999px;background:var(--paper-2);border:1px solid var(--line);display:grid;place-items:center;font-size:13px;flex:none}
.who span{font-size:12px;letter-spacing:.08em;color:var(--ink-2)}

/* band */
.band{background:var(--paper-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:96px 0}
.band-grid{display:grid;grid-template-columns:7fr 5fr;gap:48px}
.bigquote{font-family:var(--serif);font-size:clamp(24px,3.2vw,40px);line-height:1.35;letter-spacing:-.01em}
.band-facts{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-bottom:32px}
.band-facts b{display:block;font-family:var(--serif);font-size:24px;font-weight:500;font-variant-numeric:tabular-nums}
.band-facts span{font-size:12px;color:var(--ink-2)}
.timeline{border-left:1px solid var(--line);padding-left:24px}
.tl-item{position:relative;padding-bottom:22px}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{content:"";position:absolute;left:-28px;top:9px;width:6px;height:6px;border-radius:999px;background:var(--teal)}
.tl-item b{display:block;font-size:14px;font-weight:600;margin-bottom:2px}
.tl-item span{font-size:13px;color:var(--ink-2)}

/* devices */
.devices{display:grid;grid-template-columns:4fr 8fr;gap:48px;align-items:start}
.dev-row{display:grid;grid-template-columns:1.1fr 2fr 1.2fr auto;gap:16px;align-items:center;min-height:64px;border-top:1px solid var(--line);font-size:15px;padding:0 8px;transition:background .2s}
.dev-row:hover{background:var(--paper-2)}
.dev-row:last-child{border-bottom:1px solid var(--line)}
.dev-row .name{display:flex;align-items:center;gap:10px;font-weight:500}
.dev-row .name svg{width:20px;height:20px;stroke:var(--ink);fill:none;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round;flex:none}
.dev-row .hint{font-size:13px;color:var(--ink-2)}
.tag{font-size:11px;letter-spacing:.08em;border:1px solid var(--line);border-radius:var(--r);padding:2px 8px;color:var(--ink-2);white-space:nowrap}
.tag.on{color:var(--teal);border-color:rgba(15,139,141,.4)}

/* news */
.news{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:start}
.news-main figure{overflow:hidden;border:1px solid var(--line);border-radius:var(--r);margin-bottom:20px}
.news-main img{aspect-ratio:16/9;object-fit:cover;width:100%;transition:transform .4s ease}
.news-main figure:hover img{transform:scale(1.02)}
.news-main .date,.news-item .date{font-size:12px;letter-spacing:.08em;color:var(--ink-2);font-variant-numeric:tabular-nums}
.news-main h3{font-size:22px;font-weight:600;line-height:1.45;margin:10px 0 10px}
.news-main p{font-size:15px;color:var(--ink-2);margin-bottom:14px}
.news-item{display:flex;gap:16px;align-items:flex-start;padding:16px 0;border-top:1px solid var(--line);min-height:72px}
.news-item:last-child{border-bottom:1px solid var(--line)}
.news-item .no{font-size:12px;letter-spacing:.1em;color:var(--ink-2);font-variant-numeric:tabular-nums;padding-top:4px}
.news-item h3{font-size:16px;font-weight:500;line-height:1.55;margin-top:4px}
.news-item:hover h3{text-decoration:underline;text-underline-offset:4px}

/* faq */
.faq-wrap{max-width:720px;margin:0 auto}
.faq-wrap details{border-bottom:1px solid var(--line)}
.faq-wrap details:first-of-type{border-top:1px solid var(--line)}
.faq-wrap summary{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:64px;padding:10px 0;font-size:16px;font-weight:500;cursor:pointer;list-style:none}
.faq-wrap summary::-webkit-details-marker{display:none}
.faq-icon{position:relative;width:14px;height:14px;flex:none}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--ink);transition:transform .24s ease,opacity .24s ease}
.faq-icon::before{left:0;top:6.5px;width:14px;height:1px}
.faq-icon::after{left:6.5px;top:0;width:1px;height:14px}
details[open] .faq-icon::after{transform:rotate(90deg);opacity:0}
.faq-a{padding:0 0 24px;font-size:15px;line-height:1.9;color:var(--ink-2);max-width:640px}
details[open] .faq-a{animation:fadein .24s ease}
@keyframes fadein{from{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:none}}

/* cta */
.cta{background:var(--ink);color:var(--paper);padding:120px 0}
.cta-inner{max-width:900px;position:relative;padding-left:20px}
.cta-inner::before{content:"";position:absolute;left:0;top:12px;width:6px;height:6px;border-radius:999px;background:var(--teal)}
.cta h2{color:var(--paper);font-size:clamp(32px,5vw,64px);margin-bottom:20px}
.cta p{color:rgba(246,243,236,.72);font-size:17px;margin-bottom:36px;max-width:620px}
.cta-actions{display:flex;gap:16px;flex-wrap:wrap}

/* footer */
.site-footer{background:var(--paper-2);border-top:1px solid var(--ink);padding:56px 0 28px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:32px}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.footer-note{font-size:13px;color:var(--ink-2);max-width:260px}
.site-footer h3{font-size:12px;letter-spacing:.14em;color:var(--ink-2);font-weight:500;margin-bottom:14px}
.site-footer li{margin-bottom:10px}
.site-footer li a{font-size:14px;color:var(--ink-2);transition:color .2s}
.site-footer li a:hover{color:var(--teal)}
.footer-bottom{margin-top:40px;padding-top:18px;border-top:1px solid var(--line);font-size:12px;letter-spacing:.06em;color:var(--ink-2);display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}

/* reveal */
.reveal{opacity:0;transform:translateY(14px);transition:opacity .5s cubic-bezier(.2,.7,.2,1),transform .5s cubic-bezier(.2,.7,.2,1)}
.reveal.in{opacity:1;transform:none}

@media (max-width:1024px){
  .container{padding:0 32px}
  .hero-grid{grid-template-columns:1fr;gap:48px;min-height:0}
  .hero-mini{bottom:-24px;right:0;width:32%}
  .bento{grid-template-columns:repeat(2,1fr)}
  .bento-lg{grid-column:span 2}
  .bento-sm{grid-column:span 1}
  .scenes,.demo-grid,.plans,.band-grid,.devices,.news{grid-template-columns:1fr;gap:32px}
  .case,.case.rev{grid-template-columns:1fr;gap:28px}
  .case.rev figure{order:0}
  .scenes-head,.demo-sticky{position:static}
  .idx-grid{grid-template-columns:1fr;gap:0}
  .reviews{columns:2}
  .footer-grid{grid-template-columns:1fr 1fr 1fr}
  .nav{display:none}
  .menu-btn{display:flex}
  .topbar-note{display:none}
}
@media (max-width:768px){
  .container{padding:0 20px}
  .section{padding:64px 0}
  .hero{padding:48px 0 72px}
  .stats{grid-template-columns:repeat(2,1fr);gap:24px 0}
  .stats li{padding:0 16px}
  .stats li:nth-child(odd){border-left:0;padding-left:0}
  .bento{grid-template-columns:1fr}
  .bento-lg,.bento-sm{grid-column:span 1}
  .reviews{columns:1}
  .footer-grid{grid-template-columns:1fr 1fr}
  .dev-row{grid-template-columns:1fr;gap:4px;min-height:0;padding:16px 8px}
  .dev-row .tag{justify-self:start;margin-top:4px}
  .band,.cta{padding:64px 0}
  .case{margin-bottom:56px}
  .hero-mini{display:none}
}
@media (max-width:520px){
  h1{font-size:38px}
  .hero-sub{font-size:16px}
  .hero-actions{flex-direction:column;align-items:stretch;gap:14px}
  .hero-actions .btn{width:100%}
  .chips{gap:14px}
  .scene-card{flex:0 0 86%}
  .footer-grid{grid-template-columns:1fr}
  .cta-actions{flex-direction:column;align-items:stretch}
  .brand-text{font-size:12px}
  .free-card .price{font-size:56px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.01ms!important;transition-duration:.01ms!important}
  .reveal{opacity:1;transform:none}
  .card:hover,.review:hover,.addon:hover,.case figure:hover img,.news-main figure:hover img{transform:none}
}