/* roulang page: index */
:root{
  --ink:#0B1325;
  --ink-2:#0F172A;
  --accent:#00D084;
  --cobalt:#2563EB;
  --alert:#EF4444;
  --warn:#F59E0B;
  --ok:#10B981;
  --bg:#F8FAFC;
  --card:#FFFFFF;
  --line:#E2E8F0;
  --text:#122033;
  --muted:#526277;
  --shadow:0 4px 20px -2px rgba(11,19,37,.05);
  --shadow-lg:0 18px 50px -24px rgba(11,19,37,.45);
  --radius:14px;
  --header:118px;
  --container:1200px;
}
.page{margin:0;background:var(--bg);color:var(--text);font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Heiti SC",sans-serif;font-size:16px;line-height:1.7;text-rendering:optimizeLegibility}
.page *,.page *::before,.page *::after{box-sizing:border-box}
.page h1,.page h2,.page h3,.page h4,.page p{margin:0}
.page a{color:inherit;text-decoration:none}
.page img{max-width:100%;display:block;height:auto}
.page button,.page input,.page select{font-family:inherit}
.page button{cursor:pointer}
.page ::selection{background:rgba(0,208,132,.28)}
.skip{position:absolute;left:-999px;top:8px;background:#fff;padding:8px 12px;z-index:80}
.skip:focus{left:12px}
.container{width:min(var(--container),calc(100% - 40px));margin:0 auto}
.site-header{position:fixed;top:0;left:0;right:0;z-index:40;background:rgba(11,19,37,.94);backdrop-filter:saturate(140%) blur(10px);border-bottom:1px solid rgba(226,232,240,.12);box-shadow:0 10px 30px -24px rgba(0,0,0,.8)}
.topbar{display:flex;justify-content:space-between;gap:16px;align-items:center;min-height:40px;color:#d5deea;font-size:12px;letter-spacing:.02em;border-bottom:1px solid rgba(255,255,255,.06)}
.topbar-group,.brand-lock,.nav-actions,.section-head,.metric-copy,.split-copy{display:flex;align-items:center}
.topbar-group{gap:18px;flex-wrap:wrap;min-height:40px}
.dot{width:8px;height:8px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 4px rgba(0,208,132,.15);display:inline-block}
.dot.warn{background:var(--warn);box-shadow:0 0 0 4px rgba(245,158,11,.16)}
.timer-chip{display:inline-flex;align-items:center;gap:8px;border:1px solid rgba(0,208,132,.35);color:#d9fff1;border-radius:999px;padding:4px 10px;min-height:28px}
.navwrap{display:flex;align-items:center;justify-content:space-between;min-height:78px;gap:16px}
.brand-lock{gap:10px;min-height:44px}
.mark{width:36px;height:36px;border-radius:10px;background:linear-gradient(160deg,#123,#0b1325 40%,#063);display:grid;place-items:center;border:1px solid rgba(0,208,132,.45);box-shadow:inset 0 0 0 1px rgba(37,99,235,.35)}
.mark i{color:var(--accent)}
.brand-name{color:#fff;font-weight:760;font-size:18px;letter-spacing:.04em}
.brand-sub{display:block;color:#93a0b5;font-size:11px;letter-spacing:.14em}
.nav-links{display:flex;align-items:center;gap:4px}
.nav-links a{color:#d7deea;font-size:14px;padding:10px 10px;min-height:44px;display:inline-flex;align-items:center;border-radius:10px;position:relative}
.nav-links a:hover,.nav-links a:focus-visible{color:#fff;background:rgba(255,255,255,.05)}
.nav-links a.active{color:var(--accent)}
.nav-links a.active::after{content:"";position:absolute;left:10px;right:10px;bottom:6px;height:2px;background:var(--accent);border-radius:2px}
.nav-actions{gap:10px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:0 18px;border-radius:12px;border:1px solid transparent;font-weight:700;letter-spacing:.02em;transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease;line-height:1}
.btn:hover{transform:translateY(-2px)}
.btn:active{transform:translateY(0)}
.btn-green{background:var(--accent);color:#062117;box-shadow:0 8px 24px -12px rgba(0,208,132,.9)}
.btn-green:hover{box-shadow:0 12px 28px -10px rgba(0,208,132,1)}
.btn-line{background:transparent;color:#fff;border-color:rgba(0,208,132,.55)}
.btn-line:hover{border-color:var(--accent);background:rgba(0,208,132,.08)}
.btn-cobalt{background:var(--cobalt);color:#fff}
.btn-dark{background:var(--ink);color:#fff}
.btn-ghost{background:#fff;color:var(--ink);border-color:var(--line)}
.menu-btn{display:none;width:44px;height:44px;border-radius:12px;border:1px solid rgba(255,255,255,.16);background:transparent;color:#fff}
.drawer{display:none}
.hero{position:relative;min-height:calc(100vh - 8px);padding:calc(var(--header) + 28px) 0 54px;background-image:linear-gradient(100deg,rgba(11,19,37,.94) 8%,rgba(11,19,37,.72) 48%,rgba(11,19,37,.38) 100%),url("/assets/images/46865e0c1309f838.webp");background-size:cover;background-position:center;color:#fff;overflow:hidden}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(280px,.95fr);gap:42px;align-items:end}
.eyebrow{display:inline-flex;align-items:center;gap:8px;color:#b7ffe2;background:rgba(0,208,132,.12);border:1px solid rgba(0,208,132,.35);border-radius:999px;padding:6px 12px;font-size:12px;letter-spacing:.12em}
.hero h1{font-size:clamp(40px,5.6vw,74px);line-height:1.12;font-weight:820;letter-spacing:.01em;margin:18px 0 14px;max-width:11em;text-shadow:0 10px 30px rgba(0,0,0,.28)}
.hero-lead{font-size:16px;line-height:1.85;color:#e4ebf5;max-width:680px}
.hero-actions{display:flex;gap:12px;margin-top:26px;flex-wrap:wrap}
.poster{position:relative;border-radius:18px;overflow:hidden;min-height:460px;box-shadow:var(--shadow-lg);border:1px solid rgba(255,255,255,.16);background:#09101d}
.poster img{width:100%;height:520px;object-fit:cover;filter:saturate(1.05) contrast(1.05)}
.sprocket{position:absolute;top:0;bottom:0;width:22px;background:repeating-linear-gradient(#0b1325 0 12px,#d7deea 12px 20px);opacity:.85}
.sprocket.left{left:0}.sprocket.right{right:0}
.heat{position:absolute;top:22px;right:34px;background:rgba(11,19,37,.78);border:1px solid rgba(0,208,132,.5);backdrop-filter:blur(8px);border-radius:16px;padding:12px 14px;min-width:128px}
.heat span,.heat em{display:block;font-style:normal;font-size:12px;color:#c9d4e3;letter-spacing:.08em}
.heat strong{display:block;font-size:28px;color:var(--accent);line-height:1.2;margin:2px 0}
.poster-cap{position:absolute;left:34px;right:34px;bottom:18px;background:linear-gradient(180deg,transparent,rgba(7,12,22,.88));margin:0;padding:34px 8px 8px;color:#fff;font-size:14px}
.slide-tools{display:flex;align-items:center;gap:10px;margin-top:22px}
.icon-btn{width:44px;height:44px;border-radius:50%;border:1px solid rgba(255,255,255,.2);background:rgba(255,255,255,.06);color:#fff}
.icon-btn:hover{background:rgba(0,208,132,.18)}
.dots{display:flex;gap:8px}
.dots button{width:44px;height:10px;border:0;border-radius:99px;background:rgba(255,255,255,.28);padding:0}
.dots button.on{background:var(--accent)}
.section{padding:92px 0;position:relative}
.section-head{justify-content:space-between;align-items:flex-end;gap:24px;margin-bottom:28px}
.section-head.stack{display:block}
.kicker{color:var(--cobalt);font-size:13px;font-weight:750;letter-spacing:.16em;margin-bottom:8px}
.section h2{font-size:clamp(28px,3vw,40px);line-height:1.28;font-weight:800;color:var(--ink)}
.section-copy{color:var(--muted);font-size:16px;line-height:1.85;margin-top:12px;max-width:820px}
.dark-copy,.dark-copy .section-copy{color:#d5deea}
.dark-copy h2,.ink-block h2{color:#fff}
.metrics{background:var(--ink);color:#fff;padding:72px 0}
.metric-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;margin-top:28px}
.metric{padding:8px 8px 8px 0;border-top:2px solid rgba(0,208,132,.7)}
.metric b{display:block;font-size:clamp(28px,3vw,40px);color:var(--accent);letter-spacing:-.03em;line-height:1.1}
.metric span{display:block;margin-top:8px;color:#fff;font-weight:700}
.metric small{display:block;color:#a9b6c9;line-height:1.6;margin-top:4px}
.windows{background:#fff}
.slot{display:grid;grid-template-columns:160px 1fr auto;gap:22px;align-items:center;padding:22px 0;border-bottom:1px solid var(--line)}
.slot time{font-weight:800;color:var(--cobalt);font-variant-numeric:tabular-nums}
.slot h3{font-size:20px;margin-bottom:4px}
.slot p{color:var(--muted);line-height:1.7}
.pill{border-radius:999px;padding:6px 10px;font-size:12px;font-weight:750;min-height:32px;display:inline-flex;align-items:center}
.pill.ok{background:rgba(16,185,129,.12);color:#047857}
.pill.warn{background:rgba(245,158,11,.14);color:#b45309}
.pill.alert{background:rgba(239,68,68,.12);color:#b91c1c}
.pill.blue{background:rgba(37,99,235,.1);color:#1d4ed8}
.split{display:grid;grid-template-columns:minmax(0,.92fr) minmax(0,1.08fr);gap:42px;align-items:center}
.shot{border-radius:18px;overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow);background:#fff}
.shot img{width:100%;height:420px;object-fit:cover}
.steps{margin-top:22px;display:grid;gap:12px}
.step{display:grid;grid-template-columns:54px 1fr;gap:12px;padding:12px;border:1px solid var(--line);border-radius:14px;background:#fff}
.step em{font-style:normal;font-weight:800;color:var(--cobalt)}
.step strong{display:block}
.step span{color:var(--muted);font-size:14px;line-height:1.7}
.bg-soft{background:var(--bg)}
.bg-white{background:#fff}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:20px;transition:transform .2s ease,box-shadow .2s ease}
.card:hover{transform:translateY(-4px);box-shadow:0 16px 36px -22px rgba(11,19,37,.4)}
.card h3{font-size:18px;margin:10px 0 8px;line-height:1.45}
.card p{color:var(--muted);font-size:14px;line-height:1.75}
.tag{display:inline-flex;align-items:center;min-height:26px;padding:0 8px;border-radius:999px;background:#eef6ff;color:#1d4ed8;font-size:12px;font-weight:750}
.tag.green{background:#e9fbf4;color:#047857}
.media-card{padding:0;overflow:hidden}
.media-card img{width:100%;height:190px;object-fit:cover}
.media-card .pad{padding:18px 18px 20px}
.param{list-style:none;margin:12px 0 16px;padding:0;display:grid;gap:8px}
.param li{display:flex;gap:8px;color:#334155;font-size:14px;line-height:1.65}
.param i{color:var(--accent);margin-top:4px}
.linkish{color:var(--cobalt);font-weight:750;min-height:44px;display:inline-flex;align-items:center;gap:6px}
.linkish:hover{color:#1d4ed8}
.tabs{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:18px}
.tabs button{min-height:44px;padding:0 16px;border-radius:999px;border:1px solid var(--line);background:#fff;color:var(--ink);font-weight:700}
.tabs button.on{background:var(--ink);color:#fff;border-color:var(--ink)}
.scene{display:none;grid-template-columns:minmax(0,1.05fr) minmax(280px,.8fr);gap:22px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:18px;overflow:hidden;box-shadow:var(--shadow)}
.scene.on{display:grid}
.scene img{width:100%;height:320px;object-fit:cover}
.scene-copy{padding:28px 28px 28px 8px}
.scene-copy h3{font-size:26px;margin-bottom:8px}
.bento{display:grid;grid-template-columns:1.35fr .8fr .8fr;grid-template-rows:220px 220px;gap:14px}
.tile{position:relative;border-radius:16px;overflow:hidden;border:1px solid rgba(255,255,255,.12);min-height:180px}
.tile:first-child{grid-row:1 / span 2}
.tile img{width:100%;height:100%;object-fit:cover}
.tile figcaption{position:absolute;inset:auto 0 0 0;padding:48px 16px 14px;background:linear-gradient(transparent,rgba(6,10,18,.88));color:#fff}
.tile button{margin-top:6px}
.ink-block{background:var(--ink-2) url("/assets/images/37b7fae6f0f64921.webp") center/cover;color:#fff;position:relative}
.ink-block::before{content:"";position:absolute;inset:0;background:rgba(8,13,24,.82)}
.ink-block .container{position:relative}
.console{display:grid;grid-template-columns:280px minmax(0,1fr) 260px;gap:14px;margin-top:8px}
.panel{background:rgba(15,23,42,.78);border:1px solid rgba(255,255,255,.1);border-radius:16px;padding:16px;box-shadow:var(--shadow)}
.panel h3{font-size:16px;margin-bottom:10px}
.node{display:flex;justify-content:space-between;gap:8px;padding:10px 12px;border-radius:12px;background:rgba(255,255,255,.04);margin-bottom:8px;border:1px dashed rgba(0,208,132,.35)}
.bars{display:grid;grid-template-columns:repeat(8,1fr);gap:8px;align-items:end;height:180px}
.bars span{display:block;border-radius:8px 8px 0 0;background:linear-gradient(#00D084,#2563EB);min-height:8px}
.legend{display:flex;gap:12px;font-size:12px;color:#c9d4e3;margin-top:10px}
.sw{width:8px;height:8px;border-radius:50%;display:inline-block;margin-right:4px}
.graph{height:230px;border-radius:12px;background:radial-gradient(circle at 30% 40%,rgba(0,208,132,.8) 0 6px,transparent 7px),radial-gradient(circle at 62% 32%,rgba(37,99,235,.9) 0 6px,transparent 7px),radial-gradient(circle at 48% 68%,rgba(245,158,11,.9) 0 5px,transparent 6px),linear-gradient(rgba(255,255,255,.06),rgba(255,255,255,.02));border:1px solid rgba(255,255,255,.08)}
.rail{display:flex;gap:16px;overflow-x:auto;scroll-snap-type:x mandatory;padding-bottom:8px}
.person{min-width:280px;scroll-snap-align:start;background:#fff;border:1px solid var(--line);border-radius:16px;padding:18px;box-shadow:var(--shadow)}
.avatar{width:52px;height:52px;border-radius:16px;display:grid;place-items:center;background:#0b1325;color:var(--accent);font-weight:800}
.person small{color:var(--muted)}
.cases{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.case{display:grid;grid-template-columns:168px 1fr;background:#fff;border-radius:18px;overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow)}
.case img{width:100%;height:100%;object-fit:cover;min-height:240px}
.case div{padding:20px}
.stats{display:flex;gap:16px;margin-top:14px;flex-wrap:wrap}
.stats b{display:block;font-size:22px;color:var(--ink)}
.stats span{color:var(--muted);font-size:12px}
.price-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;align-items:stretch}
.price{background:#fff;border:1px solid var(--line);border-radius:20px;padding:22px;box-shadow:var(--shadow);position:relative}
.price.featured{transform:translateY(-12px);border-color:#86efac;box-shadow:0 22px 40px -28px rgba(0,208,132,.9)}
.price .fee{font-size:32px;font-weight:820;margin:8px 0;color:var(--ink)}
.price ul{margin:0;padding:0;list-style:none;display:grid;gap:8px}
.price li{padding-left:18px;position:relative;color:#334155;font-size:14px;line-height:1.65}
.price li::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--accent);position:absolute;left:0;top:.55em}
.compare{margin-top:22px;display:grid;grid-template-columns:1.1fr 1fr 1fr;border:1px solid var(--line);border-radius:16px;overflow:hidden;background:#fff}
.compare div{padding:14px 16px;border-top:1px solid var(--line);border-left:1px solid var(--line);font-size:14px;line-height:1.6}
.compare div:nth-child(-n+3){border-top:0;background:#0b1325;color:#fff;font-weight:750}
.compare div:nth-child(3n+1){border-left:0;font-weight:700}
.trust{background:var(--ink);color:#fff;padding:64px 0}
.badge-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
.badge{border:1px solid rgba(255,255,255,.14);border-radius:14px;padding:12px 14px;min-height:64px;background:rgba(255,255,255,.03);min-width:160px}
.badge b{display:block}
.badge span{color:#b7c3d4;font-size:12px}
.quote-grid{columns:2;column-gap:16px}
.quote{break-inside:avoid;margin:0 0 16px;background:#fff;border:1px solid var(--line);border-radius:16px;padding:18px;box-shadow:var(--shadow)}
.quote p{font-size:15px;line-height:1.75}
.who{display:flex;justify-content:space-between;gap:8px;margin-top:12px;color:var(--muted);font-size:13px}
.marquee{overflow:hidden}
.track{display:flex;gap:14px;width:max-content;animation:slide 42s linear infinite}
.bubble{width:320px;background:#fff;border-radius:18px;padding:16px;border:1px solid var(--line);box-shadow:var(--shadow)}
.bubble p{font-size:14px;line-height:1.7;color:#243246}
@keyframes slide{from{transform:translateX(0)}to{transform:translateX(-50%)}}
.news-grid{display:grid;grid-template-columns:1.2fr 1fr 1fr;gap:16px}
.news{background:#fff;border-radius:18px;overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow);display:flex;flex-direction:column}
.news img{height:210px;width:100%;object-fit:cover}
.news .pad{padding:16px 16px 18px;display:flex;flex-direction:column;gap:8px;flex:1}
.qa-item{border-bottom:1px solid var(--line);background:#fff}
.qa-item button{width:100%;text-align:left;background:#fff;border:0;min-height:64px;padding:16px 8px;display:flex;justify-content:space-between;gap:16px;font-size:17px;font-weight:750;color:var(--ink)}
.qa-item button i{color:var(--cobalt);transition:transform .2s ease}
.qa-item.open button i{transform:rotate(45deg)}
.qa-panel{max-height:0;overflow:hidden;transition:max-height .28s ease}
.qa-panel p{padding:0 8px 16px;color:var(--muted);max-width:860px}
.closing{background:linear-gradient(120deg,rgba(11,19,37,.92),rgba(15,23,42,.88)),url("/assets/images/7fe3291dff4ed2d3.webp") center/cover;color:#fff}
.closing h2{color:#fff}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:18px}
.field{display:flex;flex-direction:column;gap:6px}
.field.full{grid-column:1 / -1}
.field span{font-size:13px;color:#d5deea}
.field input,.field select{min-height:48px;border-radius:12px;border:1px solid rgba(255,255,255,.16);background:rgba(255,255,255,.96);padding:0 12px;color:var(--ink);outline:none}
.field input:focus,.field select:focus,.qa-item button:focus-visible,.tabs button:focus-visible,.icon-btn:focus-visible,.menu-btn:focus-visible,.btn:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.form-note{color:#c9d4e3;font-size:13px;margin-top:8px}
.form-ok{display:none;border:1px solid rgba(0,208,132,.4);background:rgba(0,208,132,.1);border-radius:16px;padding:18px;margin-top:14px}
.site-footer{background:#070d18;color:#c9d4e3;padding:54px 0 28px}
.foot-grid{display:grid;grid-template-columns:1.3fr .8fr .9fr;gap:28px}
.site-footer h2,.site-footer strong{color:#fff}
.site-footer a{color:#d5deea;display:inline-flex;min-height:36px;align-items:center}
.site-footer a:hover{color:var(--accent)}
.foot-links{display:grid;grid-template-columns:1fr 1fr;gap:4px 16px}
.legal{margin-top:26px;padding-top:16px;border-top:1px solid rgba(255,255,255,.08);display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;font-size:13px;color:#93a0b5}
.modal{position:fixed;inset:0;background:rgba(7,10,18,.62);z-index:70;display:none;align-items:center;justify-content:center;padding:20px}
.modal.on{display:flex}
.dialog{width:min(640px,100%);background:#fff;border-radius:18px;padding:22px;box-shadow:var(--shadow-lg);max-height:min(80vh,720px);overflow:auto}
.dialog h3{font-size:22px;margin-bottom:8px}
.dialog p{color:var(--muted);line-height:1.8}
@media (max-width:1200px){
  .nav-links,.nav-actions{display:none}
  .menu-btn{display:inline-grid;place-items:center}
  .drawer{display:block;position:fixed;inset:var(--header) 0 0 0;background:#0b1325;transform:translateX(100%);transition:transform .25s ease;padding:16px;z-index:39;overflow:auto}
  .drawer.on{transform:none}
  .drawer a,.drawer .btn{display:flex;width:100%;margin-bottom:8px}
  .drawer a{color:#fff;min-height:44px;align-items:center;padding:0 8px;border-radius:10px}
}
@media (max-width:1024px){
  .hero-grid,.split,.scene,.console,.cases,.price-grid,.foot-grid,.news-grid,.metric-grid{grid-template-columns:1fr}
  .bento{grid-template-columns:1fr 1fr;grid-template-rows:none}
  .tile:first-child{grid-row:auto;min-height:240px}
  .price.featured{transform:none}
  .compare{grid-template-columns:1fr}
  .compare div:nth-child(3n+1){border-left:1px solid var(--line)}
  .compare div:nth-child(-n+3){border-left:0}
  .poster img,.shot img,.scene img{height:280px}
  .case{grid-template-columns:1fr}
  .case img{height:200px}
}
@media (max-width:768px){
  :root{--header:132px}
  .section{padding:68px 0}
  .topbar{align-items:flex-start;padding:6px 0}
  .slot{grid-template-columns:1fr;gap:6px}
  .quote-grid{columns:1}
  .form-grid,.card-grid,.bento,.news-grid{grid-template-columns:1fr}
  .hero{min-height:auto}
  .hero h1{font-size:36px}
  .legal{flex-direction:column}
}
@media (max-width:520px){
  .container{width:min(100% - 28px,var(--container))}
  .hero-actions .btn,.form-grid .btn{width:100%}
  .metric b{font-size:30px}
  .brand-sub{display:none}
  .poster{min-height:300px}
}
@media (prefers-reduced-motion:reduce){
  .track{animation:none;width:auto;flex-wrap:wrap}
  .page *,.page *::before,.page *::after{transition:none!important;scroll-behavior:auto!important}
}