:root{
  --bg:#0B0E14;--bg-deep:#080A0F;--surface:#12151C;--surface-2:#1A1E27;--hover:#232833;
  --text:#E2E6ED;--title:#fff;--muted:#A8B0C0;--faint:#6B7385;--silver:#C8D0DC;--line:rgba(255,255,255,.10);
  --line-strong:rgba(120,160,220,.40);--shadow:0 16px 48px rgba(0,0,0,.65);--glow:0 12px 36px rgba(100,140,200,.12);
  --max:1280px;--nav:74px;--radius:14px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;background:var(--bg-deep)}
body{margin:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;line-height:1.75;overflow-x:hidden}
body.panel-open{overflow:hidden}
a{color:inherit;text-decoration:none}a:hover{color:#fff}
img{display:block;max-width:100%;height:auto}
button,input{font:inherit}
button{color:inherit}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.skip-link{position:fixed;left:18px;top:12px;z-index:9999;background:#fff;color:#0B0E14;padding:10px 14px;border-radius:10px;transform:translateY(-150%)}
.skip-link:focus{transform:none}
.container{width:min(calc(100% - 40px),var(--max));margin:0 auto}
main{padding-top:var(--nav)}
.section{padding:76px 0}.section.tight{padding:48px 0}.section.deep{background:var(--bg-deep)}
.eyebrow{font-size:.78rem;letter-spacing:.16em;text-transform:uppercase;color:var(--silver);font-weight:700}
h1,h2,h3{color:var(--title);line-height:1.18;margin:0 0 18px;letter-spacing:-.02em}h1{font-size:clamp(2.4rem,5vw,5.6rem)}h2{font-size:clamp(1.7rem,3vw,3rem)}h3{font-size:1.16rem}
p{margin:0 0 1em;color:var(--text)}
.lead{font-size:clamp(1.05rem,1.8vw,1.28rem);color:var(--muted);max-width:760px}
.muted{color:var(--muted)}.small{font-size:.92rem}.caption{font-size:.86rem;color:var(--faint)}
.site-header{position:fixed;inset:0 0 auto 0;height:var(--nav);z-index:800;background:rgba(8,10,15,.93);backdrop-filter:blur(16px);border-bottom:1px solid var(--line)}
.nav-shell{height:100%;width:min(calc(100% - 40px),var(--max));margin:0 auto;display:flex;align-items:center;gap:26px}
.brand{display:inline-flex;align-items:center;min-width:max-content}.brand-logo{max-height:38px;width:auto;object-fit:contain}.brand-word{font-weight:900;font-size:1.28rem;letter-spacing:.01em;color:#fff}
.desktop-nav{display:flex;align-items:center;gap:4px;flex:1;min-width:0}.desktop-nav a{padding:10px 11px;color:var(--muted);font-size:.95rem;white-space:nowrap;border-radius:999px}.desktop-nav a:hover,.desktop-nav a.active{color:#fff;background:rgba(255,255,255,.07)}
.nav-actions{display:flex;align-items:center;gap:6px}.text-btn,.primary-mini,.icon-btn,.close-btn{border:0;background:none;cursor:pointer}.text-btn{padding:10px 12px;color:var(--muted);border-radius:999px}.text-btn:hover,.text-btn.active{background:var(--surface-2);color:#fff}.primary-mini{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:0 16px;background:#fff;color:#0B0E14;border-radius:999px;font-weight:800}.primary-mini:hover{color:#0B0E14;transform:translateY(-1px)}
.icon-btn{width:44px;height:44px;display:inline-flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;border-radius:999px;background:rgba(255,255,255,.06)}.icon-btn span{width:16px;height:1px;background:#fff}
.mobile-only{display:none!important}
.hero{padding:58px 0 72px}.hero-grid{display:grid;grid-template-columns:minmax(0,1.85fr) minmax(320px,1fr);gap:36px;align-items:stretch}.hero-media{background:linear-gradient(145deg,var(--surface),var(--bg-deep));border:1px solid var(--line);border-radius:22px;overflow:hidden;min-height:520px;display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow)}.hero-media img{width:100%;height:100%;object-fit:contain}.hero-copy{display:flex;flex-direction:column;justify-content:center;padding:10px 0}.hero-copy h1{font-size:clamp(2.5rem,4vw,4.7rem)}
.btn-row{display:flex;flex-wrap:wrap;gap:10px;margin:26px 0}.btn{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 18px;border-radius:999px;font-weight:800;border:1px solid var(--line);white-space:nowrap}.btn.primary{background:#fff;color:#0B0E14;border-color:#fff}.btn.secondary{color:#fff;background:transparent;border-color:rgba(200,210,230,.35)}.btn:hover{transform:translateY(-1px);box-shadow:var(--glow)}
.mini-list{display:grid;gap:10px;margin-top:24px}.mini-list a{display:block;padding:14px 0;border-top:1px solid var(--line)}.mini-list strong{display:block;color:#fff}.mini-list span{display:block;color:var(--muted);font-size:.92rem}
.quickbar-wrap{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--bg-deep)}.quickbar{display:flex;overflow-x:auto;scrollbar-width:none;gap:8px;padding:12px 0}.quickbar::-webkit-scrollbar{display:none}.quickbar a{flex:none;padding:9px 13px;border:1px solid var(--line);border-radius:999px;color:var(--muted);font-size:.9rem}.quickbar a:hover{color:#fff;border-color:var(--line-strong)}
.section-head{display:flex;align-items:end;justify-content:space-between;gap:24px;margin-bottom:34px}.section-head p{max-width:620px;color:var(--muted);margin:0}.section-kicker{display:block;color:var(--silver);font-size:.82rem;font-weight:700;letter-spacing:.12em;margin-bottom:10px}
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}.grid-6{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:14px}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:0 10px 30px rgba(0,0,0,.18)}.card:hover{border-color:rgba(200,210,230,.22);background:#151921}.card p:last-child{margin-bottom:0}.card .num{font-size:2.4rem;font-weight:900;color:#fff;opacity:.18;line-height:1}.card .meta{font-size:.8rem;color:var(--silver);letter-spacing:.08em;text-transform:uppercase;margin-bottom:8px}.card-link{display:block;margin-top:16px;color:#fff;font-weight:700}.card-link::after{content:" →";color:var(--silver)}
.pills{display:flex;flex-wrap:wrap;gap:10px}.pill{padding:12px 14px;border:1px solid var(--line);background:var(--surface);border-radius:999px;color:var(--text);min-width:150px}.pill strong{display:block;color:#fff;font-size:.95rem}.pill span{display:block;color:var(--muted);font-size:.8rem;margin-top:2px}
.feature-split{display:grid;grid-template-columns:1.35fr .85fr;gap:24px}.feature-large{min-height:430px;padding:36px;border:1px solid var(--line);border-radius:18px;background:linear-gradient(150deg,var(--surface),#0e1118);display:flex;flex-direction:column;justify-content:end}.feature-stack{display:grid;gap:14px}.feature-stack .card{padding:20px}
.horizontal-track{display:grid;grid-auto-flow:column;grid-auto-columns:minmax(260px,1fr);overflow-x:auto;gap:14px;padding-bottom:8px;scroll-snap-type:x proximity}.horizontal-track>*{scroll-snap-align:start}
.poster-wall{display:grid;grid-template-columns:repeat(12,1fr);gap:16px}.poster{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:22px;min-height:310px;display:flex;flex-direction:column;justify-content:end}.poster:nth-child(1){grid-column:span 5}.poster:nth-child(2){grid-column:span 3}.poster:nth-child(3){grid-column:span 4}.poster:nth-child(4){grid-column:span 4}.poster:nth-child(5){grid-column:span 5}.poster:nth-child(6){grid-column:span 3}
.number-list{border-top:1px solid var(--line)}.number-row{display:grid;grid-template-columns:90px 1fr auto;gap:22px;align-items:start;padding:24px 0;border-bottom:1px solid var(--line)}.number-row .big-num{font-size:2.8rem;line-height:1;font-weight:900;color:#fff;opacity:.24}.number-row p{color:var(--muted);margin:0}.number-row a{align-self:center;color:#fff;font-weight:800}
.timeline{position:relative;margin-left:10px}.timeline::before{content:"";position:absolute;left:10px;top:8px;bottom:8px;width:1px;background:var(--line)}.timeline-item{position:relative;padding:0 0 32px 44px}.timeline-item::before{content:"";position:absolute;left:5px;top:7px;width:11px;height:11px;border-radius:50%;background:#fff;box-shadow:0 0 0 5px rgba(255,255,255,.07)}.timeline-item .status{display:inline-block;padding:4px 9px;border:1px solid var(--line);border-radius:999px;color:var(--silver);font-size:.78rem;margin-bottom:8px}
.article-list{display:grid;gap:1px;background:var(--line);border:1px solid var(--line);border-radius:16px;overflow:hidden}.article-item{background:var(--surface);padding:26px;display:grid;grid-template-columns:180px 1fr;gap:24px}.article-item .article-tag{color:var(--silver);font-size:.82rem;letter-spacing:.08em}.article-item p{color:var(--muted);margin-bottom:0}
.knowledge-grid{display:grid;grid-template-columns:1.2fr .8fr .8fr;gap:16px}.knowledge-grid .card:first-child{grid-row:span 2;min-height:400px}.knowledge-grid .card{min-height:190px}
.faq{display:grid;gap:12px}.faq details{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:0 20px}.faq summary{cursor:pointer;color:#fff;font-weight:800;padding:18px 0;list-style:none}.faq summary::-webkit-details-marker{display:none}.faq summary::after{content:"＋";float:right;color:var(--silver)}.faq details[open] summary::after{content:"－"}.faq details p{padding:0 0 20px;color:var(--muted)}
.page-hero{padding:78px 0 46px;border-bottom:1px solid var(--line)}.page-hero .wrap{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(280px,.6fr);gap:32px;align-items:end}.page-hero h1{font-size:clamp(2.5rem,5vw,5.2rem)}.page-hero .aside-note{border-left:1px solid var(--line);padding-left:24px;color:var(--muted)}
.media-block{background:var(--surface);border:1px solid var(--line);border-radius:18px;overflow:hidden}.media-block img{width:100%;height:auto;max-height:620px;object-fit:contain}.media-placeholder{min-height:260px;display:grid;place-items:center;padding:30px;background:linear-gradient(145deg,#10141c,#090b10);color:var(--faint);text-align:center}
.callout{padding:28px;border-left:2px solid var(--silver);background:linear-gradient(90deg,rgba(255,255,255,.05),transparent);border-radius:0 14px 14px 0}.callout h3{margin-bottom:8px}.callout p{color:var(--muted);margin:0}
.stateless-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:16px;overflow:hidden}.stateless-grid article{background:var(--surface);padding:26px}.stateless-grid h3{margin-bottom:8px}.stateless-grid p{color:var(--muted)}
.process{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.process article{padding:22px;border-top:1px solid var(--line);background:linear-gradient(180deg,rgba(255,255,255,.025),transparent)}.process .step{font-size:.78rem;color:var(--silver);letter-spacing:.12em;margin-bottom:10px}
.app-showcase{display:grid;grid-template-columns:minmax(300px,.8fr) minmax(0,1.2fr);gap:48px;align-items:center}.phone-frame{max-width:420px;margin:auto;background:var(--surface);border:1px solid var(--line);padding:14px;border-radius:36px;box-shadow:var(--shadow)}.phone-frame img{border-radius:24px;width:100%}.app-points{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.app-points .card{padding:18px}
.site-footer{background:#06080C;border-top:1px solid var(--line);padding:58px 0 calc(28px + env(safe-area-inset-bottom))}.footer-grid{display:grid;grid-template-columns:1.5fr repeat(4,1fr);gap:28px}.site-footer h2{font-size:.9rem;letter-spacing:.08em;color:#fff;margin:0 0 15px}.site-footer a{display:block;color:#9AA3B2;padding:5px 0;font-size:.9rem}.site-footer a:hover{color:#fff}.footer-brand p{color:#9AA3B2;max-width:300px;font-size:.9rem}.footer-logo{margin-bottom:10px}.footer-note{border-top:1px solid var(--line);margin-top:38px;padding-top:22px;display:flex;justify-content:space-between;gap:24px}.footer-note p{color:#747e8f;font-size:.82rem;margin:0;max-width:780px}
.overlay{position:fixed;inset:0;z-index:900;background:rgba(0,0,0,.62);opacity:0;visibility:hidden;pointer-events:none;transition:opacity .18s ease,visibility .18s ease}.overlay.show{opacity:1;visibility:visible;pointer-events:auto}
.channel-panel{position:fixed;z-index:950;top:0;right:0;width:min(470px,88vw);height:100dvh;background:#0b0e14;border-left:1px solid var(--line);box-shadow:var(--shadow);transform:translateX(102%);visibility:hidden;pointer-events:none;transition:transform .22s ease,visibility .22s ease;overflow-y:auto}.channel-panel.open{transform:none;visibility:visible;pointer-events:auto}.panel-head{position:sticky;top:0;z-index:2;display:flex;align-items:center;justify-content:space-between;padding:18px 22px;background:rgba(11,14,20,.96);border-bottom:1px solid var(--line)}.close-btn{width:44px;height:44px;border-radius:999px;background:var(--surface-2);font-size:1.6rem;line-height:1}.channel-groups{padding:12px 22px 32px}.channel-groups section{padding:18px 0;border-bottom:1px solid var(--line)}.channel-groups h2{font-size:.82rem;color:var(--silver);letter-spacing:.12em;text-transform:uppercase}.channel-groups a{display:block;padding:10px 0}.channel-groups strong{display:block;color:#fff}.channel-groups span{display:block;color:var(--muted);font-size:.86rem;margin-top:2px}
.search-panel{position:fixed;z-index:940;left:0;right:0;top:var(--nav);background:#0b0e14;border-bottom:1px solid var(--line);box-shadow:var(--shadow);transform:translateY(-110%);opacity:0;visibility:hidden;pointer-events:none;transition:.2s ease}.search-panel.open{transform:none;opacity:1;visibility:visible;pointer-events:auto}.search-inner{padding:30px 0 34px}.search-top{display:flex;justify-content:space-between;gap:20px;align-items:start}.search-top h2{margin:5px 0 18px}.search-box{display:block}.search-box input{width:100%;height:58px;border-radius:14px;border:1px solid var(--line);background:var(--surface);color:#fff;padding:0 18px;outline:0}.search-box input:focus{border-color:var(--line-strong);box-shadow:0 0 0 3px rgba(120,160,220,.10)}.search-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}.search-tags a{padding:9px 12px;border:1px solid var(--line);border-radius:999px;color:var(--muted)}.search-tags a[hidden]{display:none}.search-hint{margin:14px 0 0;color:var(--faint);font-size:.86rem}
.bottom-nav{display:none}
:focus-visible{outline:2px solid #fff;outline-offset:3px}
@media(max-width:1050px){.desktop-nav a{padding:10px 7px;font-size:.9rem}.nav-shell{gap:16px}.footer-grid{grid-template-columns:1.5fr repeat(2,1fr)}.hero-grid{grid-template-columns:1.4fr 1fr}.grid-6{grid-template-columns:repeat(3,1fr)}}
@media(max-width:820px){
  :root{--nav:64px}.container,.nav-shell{width:min(calc(100% - 30px),var(--max))}.desktop-only,.desktop-nav{display:none!important}.mobile-only{display:flex!important}.site-header{height:var(--nav)}.nav-shell{justify-content:space-between}.nav-shell>.brand{position:absolute;left:50%;transform:translateX(-50%);max-width:42%}.brand-logo{max-height:32px;max-width:150px}.brand-word{font-size:1.12rem}.hero{padding:36px 0 52px}.hero-grid{display:flex;flex-direction:column}.hero-copy{order:1}.hero-media{order:2;min-height:260px}.hero-copy h1{font-size:clamp(2.4rem,10vw,4rem)}.section{padding:56px 0}.section-head{display:block}.section-head p{margin-top:10px}.grid-4,.grid-3,.grid-2,.stateless-grid,.app-points{grid-template-columns:1fr}.grid-6{grid-template-columns:repeat(2,1fr)}.feature-split,.page-hero .wrap,.app-showcase{grid-template-columns:1fr}.poster-wall{grid-template-columns:1fr}.poster:nth-child(n){grid-column:auto;min-height:220px}.knowledge-grid{grid-template-columns:1fr}.knowledge-grid .card:first-child{grid-row:auto;min-height:260px}.number-row{grid-template-columns:60px 1fr}.number-row>a{grid-column:2}.article-item{grid-template-columns:1fr;gap:8px}.process{grid-template-columns:1fr 1fr}.footer-grid{grid-template-columns:1fr 1fr}.footer-brand{grid-column:1/-1}.footer-note{display:block}.footer-note p+p{margin-top:12px}.search-panel{top:0;height:100dvh;overflow:auto}.search-inner{padding:22px 15px}.page-hero{padding:58px 0 38px}.page-hero .aside-note{border-left:0;border-top:1px solid var(--line);padding:18px 0 0}.bottom-nav{position:fixed!important;left:0;right:0;bottom:0;z-index:700;height:calc(58px + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom);background:rgba(8,10,15,.97);border-top:1px solid var(--line);display:grid!important;grid-template-columns:repeat(5,1fr)}.bottom-nav a{display:flex;align-items:center;justify-content:center;min-width:0;color:var(--muted);font-size:.78rem}.bottom-nav a.active{color:#fff;background:rgba(255,255,255,.05)}body{padding-bottom:calc(58px + env(safe-area-inset-bottom))}.site-footer{padding-bottom:calc(90px + env(safe-area-inset-bottom))}
}
@media(max-width:520px){.grid-6{grid-template-columns:1fr}.process{grid-template-columns:1fr}.hero-media{min-height:210px}.card{padding:20px}.section{padding:48px 0}.page-hero h1{font-size:2.6rem}.horizontal-track{grid-auto-columns:84%}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{scroll-behavior:auto!important;transition:none!important;animation:none!important}}