.screen{position:relative;overflow-x:clip;max-width:100%;background:linear-gradient(180deg,var(--accent-05) 0%,var(--clear) 72%)}
.screen::before{content:"";position:absolute;inset:-14% -8% 38% 50%;background:radial-gradient(closest-side,var(--accent-06),var(--clear));pointer-events:none}
.hero{position:relative;z-index:1;padding-top:30px;padding-bottom:48px}
.copy{position:relative;z-index:3;text-align:center}
.lockup{display:inline-flex;align-items:center;gap:14px;height:30px;margin:0 0 22px}
.lockup-brand{display:inline-flex;align-items:center;gap:8px;font-family:var(--font-display);font-weight:var(--weight-heavy);font-size:19px;letter-spacing:-.02em}
.lockup-brand img{width:28px;height:28px}
.x-mark{fill:none;stroke:var(--ink-45);stroke-width:1.2;stroke-linecap:round}
.lockup-fact{font-family:var(--font-mono);font-size:13px;font-weight:var(--weight-medium);color:var(--ink-70);letter-spacing:.01em}
.display{margin:0 0 26px;font-family:var(--font-display);font-weight:var(--weight-display);font-size:68px;line-height:1.06;letter-spacing:-.03em}
.display .l1{display:block;color:var(--ink)}
.display .l2{display:block;color:var(--accent)}
.lede{margin:0 0 8px;font-size:17px;line-height:1.55;color:var(--muted)}
.lede strong{color:var(--ink);font-weight:var(--weight-bold)}
.trust{display:flex;justify-content:center;flex-wrap:wrap;margin:0 0 14px;padding:0;list-style:none;font-size:14px;line-height:22px;color:var(--ink)}
.trust li{display:flex;align-items:center;font-weight:var(--weight-semibold)}
.trust li+li::before{content:"·";margin:0 10px;color:var(--ink-45);font-weight:var(--weight-bold)}
.platforms{display:flex;justify-content:center;flex-wrap:wrap;gap:30px;color:var(--ink-70);padding:0;margin:0;list-style:none}
.platforms li{display:flex;align-items:center;gap:7px;font-size:13px;font-weight:var(--weight-semibold);line-height:22px}
.platforms svg{flex:none;width:18px;height:18px}
.rig{position:relative;z-index:2;width:82%;max-width:980px;margin:34px auto 0}
.rig-card{position:relative;background:var(--panel);border:1px solid var(--line);border-radius:var(--r-card);padding:18px 22px 16px;box-shadow:inset 0 1px 0 var(--white-90),inset 0 0 0 1px var(--white-70),var(--lift)}
.rig-main{display:grid;grid-template-columns:1.1fr 1fr;gap:16px}
.panel-title{font-size:14px;font-weight:var(--weight-heavy);color:var(--ink);letter-spacing:-.01em}
.panel-note{display:inline-flex;align-items:center;gap:6px;font-size:12px;color:var(--muted)}
.tray{position:relative;background:var(--panel-2);border-radius:var(--r-panel);padding:14px 18px;box-shadow:inset 0 2px 8px var(--wine-08),inset 0 0 0 1px var(--accent-14)}
.tray-head,.depot-head{display:flex;align-items:center;justify-content:space-between;height:18px}
.bars{position:relative;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));margin-top:10px}
.guide{position:absolute;left:2px;right:2px;border-top:1px dashed var(--accent-30);z-index:0}
.g-full{top:26px}
.g-half{top:86px}
.shelf{position:absolute;left:0;right:0;top:142px;height:8px;border-radius:var(--r-pill);background:var(--wine-08);z-index:0}
.bar{position:relative;z-index:1;display:flex;flex-direction:column;align-items:center;min-width:0}
.bar-cap{height:20px;line-height:20px;margin-bottom:6px;font-family:var(--font-mono);font-size:15px;font-weight:var(--weight-bold);color:var(--ink);font-variant-numeric:tabular-nums}
.tube{position:relative;display:block;width:58px;height:120px;border-radius:var(--r-tube);overflow:hidden;background:linear-gradient(180deg,var(--white-70),var(--white-35));border:1px solid var(--white-90);box-shadow:inset 0 0 0 1px var(--accent-14),0 12px 20px -12px var(--wine-20);-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px)}
.liquid{position:absolute;left:0;right:0;bottom:0;background:linear-gradient(0deg,var(--wine) 0%,var(--accent) 100%);background-size:100% 120px;background-position:bottom;box-shadow:inset 0 2px 0 var(--white-70)}
.lv-60{height:12%}
.lv-250{height:50%}
.lv-500{height:100%}
.gloss{position:absolute;top:6px;left:9px;right:9px;height:16px;border-top:3px solid var(--white-90);border-radius:var(--r-round) var(--r-round) 0 0/100% 100% 0 0}
.gloss::after{content:"";position:absolute;top:8px;left:0;width:5px;height:58px;border-radius:var(--r-detail);background:linear-gradient(180deg,var(--white-60),var(--clear))}
.bar-price{height:16px;line-height:16px;margin-top:8px;font-family:var(--font-mono);font-size:13px;font-weight:var(--weight-semibold);color:var(--ink-70);font-variant-numeric:tabular-nums;white-space:nowrap}
.depot{position:relative;background:linear-gradient(180deg,var(--panel),var(--bg));border:1px solid var(--line);border-radius:var(--r-panel);padding:14px 18px;box-shadow:inset 0 1px 0 var(--white-90)}
.tank-wrap{position:relative;margin:28px 0 12px;padding:0 9px}
.tank{position:relative;height:66px;border-radius:var(--r-pill);overflow:hidden;background:linear-gradient(180deg,var(--white-70),var(--panel-2));border:1px solid var(--line);box-shadow:inset 0 0 0 1px var(--white-90),0 12px 22px -14px var(--wine-20)}
.tank-liquid{position:absolute;left:0;right:0;bottom:0;height:64%;background:linear-gradient(90deg,var(--wine) 0%,var(--accent) 100%);box-shadow:inset 0 2px 0 var(--white-60)}
.bubble{position:absolute;border-radius:var(--r-round);background:var(--white-35)}
.b1{width:6px;height:6px;left:18%;bottom:30%}
.b2{width:4px;height:4px;left:24%;bottom:58%}
.b3{width:5px;height:5px;left:57%;bottom:22%}
.b4{width:3px;height:3px;left:71%;bottom:52%}
.tank-gloss{position:absolute;top:7px;left:26px;right:42%;height:9px;border-radius:var(--r-pill);background:linear-gradient(90deg,var(--white-90),var(--clear))}
.cap{position:absolute;top:50%;width:9px;height:28px;margin-top:-14px;border-radius:var(--r-detail);background:linear-gradient(180deg,var(--line-strong),var(--line));box-shadow:inset 0 1px 0 var(--white-70)}
.cap-l{left:0}
.cap-r{right:0}
.stamp-forever{position:absolute;top:-15px;right:-6px;z-index:2;display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-pill);background:var(--accent);color:var(--wine);font-size:12px;font-weight:var(--weight-heavy);letter-spacing:.02em;transform:rotate(-6deg);box-shadow:0 10px 18px -10px var(--wine-20),inset 0 1px 0 var(--white-35)}
.packs{display:flex;flex-direction:column;gap:8px;list-style:none;margin:0;padding:0}
.packs li{display:grid;grid-template-columns:70px 1fr 52px;align-items:center;gap:12px;height:24px}
.pk-size{font-family:var(--font-mono);font-size:13px;font-weight:var(--weight-bold);color:var(--ink);font-variant-numeric:tabular-nums}
.pk-track{position:relative;height:8px;border-radius:var(--r-pill);background:var(--panel-2);box-shadow:inset 0 0 0 1px var(--accent-14);overflow:hidden}
.pk-fill{position:absolute;left:0;top:0;bottom:0;border-radius:var(--r-pill);background:linear-gradient(90deg,var(--wine),var(--accent))}
.w300{width:10%}
.w1000{width:33.3%}
.w3000{width:100%}
.pk-price{text-align:right;font-family:var(--font-mono);font-size:13px;font-weight:var(--weight-bold);color:var(--ink);font-variant-numeric:tabular-nums}
.routes{display:flex;align-items:center;gap:10px;margin-top:14px;padding-top:12px;border-top:1px dashed var(--line)}
.routes-label{font-size:12px;font-weight:var(--weight-bold);color:var(--muted);margin-right:2px;white-space:nowrap}
.route-list{display:flex;flex-wrap:wrap;gap:8px;list-style:none;padding:0;margin:0}
.route-list li{display:inline-flex;align-items:center;gap:6px;min-height:30px;padding:0 12px 0 6px;border-radius:var(--r-pill);background:var(--panel);border:1px solid var(--line);font-size:13px;font-weight:var(--weight-semibold);color:var(--ink);box-shadow:0 4px 10px -8px var(--wine-20)}
.route-list svg{flex:none;width:18px;height:18px;overflow:hidden;border-radius:var(--r-round)}
.route-type{margin-left:auto;display:inline-flex;align-items:center;gap:6px;font-family:var(--font-mono);font-size:12px;color:var(--muted);white-space:nowrap}
.f-red{fill:var(--flag-red)}
.f-white{fill:var(--panel)}
.f-navy{fill:var(--flag-navy)}
.f-ring{fill:none;stroke:var(--line-strong);stroke-width:1}
.float-shield{position:absolute;top:-16px;left:-30px;z-index:3;display:inline-flex;align-items:center;gap:7px;height:34px;padding:0 14px 0 10px;border-radius:var(--r-pill);background:var(--panel);border:1px solid var(--line);font-size:13px;font-weight:var(--weight-bold);color:var(--ink);transform:rotate(-4deg);box-shadow:var(--lift-sm)}
.sh-body{fill:var(--ink)}
.sh-tick{fill:none;stroke:var(--panel);stroke-width:2.2;stroke-linecap:round;stroke-linejoin:round}
.float-ticket{position:absolute;right:-26px;bottom:-16px;z-index:3;display:inline-flex;align-items:center;gap:8px;height:36px;padding:0 16px 0 14px;border-radius:var(--r-small);background:var(--panel);border:1px solid var(--line);font-family:var(--font-mono);font-size:13px;font-weight:var(--weight-bold);color:var(--ink);transform:rotate(5deg);box-shadow:var(--lift-sm)}
.float-ticket::before,.float-ticket::after{content:"";position:absolute;top:50%;width:10px;height:10px;margin-top:-5px;border-radius:var(--r-round);background:var(--bg);border:1px solid var(--line)}
.float-ticket::before{left:-6px}
.float-ticket::after{right:-6px}
.tk-sep{width:1px;height:18px;border-left:1px dashed var(--line-strong)}
.tk-icon{color:var(--ink-70)}
.tabs{min-width:0}
.tab-list,[role="tablist"]{display:flex;gap:6px;max-width:100%;overflow-x:auto;padding:6px;background:var(--panel-2);border:1px solid var(--line);border-radius:var(--r-pill);width:max-content;margin-bottom:24px}
[role="tab"]{flex-shrink:0;display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:10px 22px;border-radius:var(--r-pill);font-weight:var(--weight-bold);color:var(--muted);white-space:nowrap}
[role="tab"][aria-selected="true"]{background:var(--panel);color:var(--ink);box-shadow:var(--lift-sm)}
[role="tabpanel"]{min-width:0}
.toc-tabs{position:sticky;top:var(--toc-offset);z-index:20;display:flex;gap:8px;overflow-x:auto;max-width:100%;padding:8px;background:var(--panel);border:1px solid var(--line);border-radius:var(--r-pill);box-shadow:var(--lift-sm);margin-bottom:32px;overscroll-behavior-inline:contain}
.toc-tabs a{display:inline-flex;align-items:center;min-height:40px;padding:8px 18px;border-radius:var(--r-pill);flex-shrink:0;white-space:nowrap;font-size:14px;font-weight:var(--weight-semibold)}
.toc-tabs a.is-current{background:var(--panel-2);color:var(--ink);box-shadow:inset 0 0 0 1px var(--line)}
.toc-tabs.is-static{position:static}
body:has(.toc-tabs) section[id],body:has(.toc-tabs) h2[id],body:has(.toc-tabs) h3[id]{scroll-margin-top:var(--anchor-offset)}
.faq{border:1px solid var(--line);border-radius:var(--r-standard);overflow:hidden;background:var(--panel);box-shadow:var(--lift-sm)}
.faq details+details{border-top:1px solid var(--line)}
.faq summary{position:relative;list-style:none;cursor:pointer;padding:22px 56px 22px 24px;font-weight:var(--weight-bold)}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:24px;top:20px;font-family:var(--font-mono);font-size:22px;color:var(--muted)}
.faq details[open] summary::after{content:"−"}
.faq details>div{padding:0 24px 24px;color:var(--muted);line-height:1.85}
.plan-card{position:relative;display:flex;flex-direction:column;align-items:flex-start;gap:16px;padding:28px;background:var(--panel);border:1px solid var(--line);border-radius:var(--r-standard);box-shadow:inset 0 1px 0 var(--white-90),var(--lift-sm);min-width:0}
.plan-card h3,.plan-card p{margin:0}
.plan-card.is-current{background:var(--panel-2);border:2px solid var(--line-strong);padding:27px}
.plan-badge{display:inline-flex;align-items:center;min-height:26px;padding:3px 12px;background:var(--accent);color:var(--ink);border-radius:var(--r-pill);font-size:12px;font-weight:var(--weight-heavy)}
.plan-price{font-family:var(--font-mono);font-size:40px;font-weight:var(--weight-heavy);line-height:1.2;font-variant-numeric:tabular-nums}
.plan-price small{font:var(--weight-medium) 14px var(--font-body);color:var(--muted)}
.plan-facts{list-style:none;padding:0;margin:0;color:var(--muted);line-height:1.9}
.plan-card .btn{margin-top:auto;max-width:100%}
.badge,.tag{display:inline-flex;align-items:center;gap:6px;max-width:100%;padding:5px 12px;border-radius:var(--r-pill);background:var(--panel-2);border:1px solid var(--line);color:var(--ink);font-size:12px;font-weight:var(--weight-semibold);overflow-wrap:anywhere}
.badge-dot::before{content:"";width:6px;height:6px;background:var(--success);border-radius:var(--r-round);flex-shrink:0}
.table-scroll{overflow-x:auto;max-width:100%;min-width:0;-webkit-overflow-scrolling:touch;border:1px solid var(--line);border-radius:var(--r-standard);background:var(--panel);box-shadow:var(--lift-sm)}
.data-table,.route-table,.price-table{width:100%;min-width:660px;text-align:left;font-size:14px}
.data-table th,.data-table td,.route-table th,.route-table td,.price-table th,.price-table td{padding:18px 22px;border-bottom:1px solid var(--line);word-break:keep-all;color:var(--ink)}
.table-scroll th{white-space:nowrap;font-weight:var(--weight-bold);color:var(--ink)}
.data-table thead,.route-table thead,.price-table thead{background:var(--wine)}
.data-table thead th,.route-table thead th,.price-table thead th{color:var(--panel)}
.data-table tbody tr:nth-child(even),.route-table tbody tr:nth-child(even),.price-table tbody tr:nth-child(even){background:var(--bg)}
.data-table tr>:last-child,.price-table tr>:last-child{background:var(--panel-2)}
.data-table thead tr>:last-child,.price-table thead tr>:last-child{background:var(--wine)}
.route-group th{background:var(--panel-2);color:var(--ink)}
.prose>.data-table{display:block;overflow-x:auto;-webkit-overflow-scrolling:touch;max-width:100%;min-width:0}
.feature-ledger{border:1px solid var(--line);border-radius:var(--r-standard);overflow:hidden;background:var(--panel);box-shadow:var(--lift)}
.feature-head,.feature-ledger summary{display:grid;grid-template-columns:1fr 1.15fr 1.3fr;align-items:stretch}
.feature-head{background:var(--wine);color:var(--panel);font-weight:var(--weight-bold)}
.feature-head>span{padding:20px 24px}
.feature-ledger details+details{border-top:1px solid var(--line)}
.feature-ledger summary{list-style:none;cursor:pointer}
.feature-ledger summary::-webkit-details-marker{display:none}
.feature-ledger summary>span{padding:22px 24px;display:block}
.feature-ledger summary>span:first-child{font-weight:var(--weight-heavy)}
.feature-ledger summary>span:nth-child(2){color:var(--muted)}
.feature-ledger summary>span:last-child{background:var(--panel-2);color:var(--ink)}
.feature-ledger details:nth-of-type(even){background:var(--bg)}
.feature-detail{margin-left:calc(100% * 2.15 / 3.45);padding:0 24px 24px;background:var(--panel-2);font-size:14px;line-height:1.9;color:var(--muted)}
.fact-pill{display:inline-flex;align-items:center;max-width:100%;padding:3px 9px;margin-left:6px;background:var(--accent-14);border:1px solid var(--accent-30);color:var(--ink);border-radius:var(--r-pill);font-size:12px;font-weight:var(--weight-bold)}
.platform-card{display:flex;flex-direction:column;align-items:flex-start;gap:16px;padding:24px;background:var(--panel);border:1px solid var(--line);border-radius:var(--r-standard);box-shadow:var(--lift-sm);min-width:0}
.platform-card svg{width:32px;height:32px;color:var(--ink-70)}
.platform-card h3{font-size:18px;margin:0}
.platform-card p{font-size:13px;color:var(--muted);margin:0}
.platform-card .btn{margin-top:auto;padding-inline:14px;max-width:100%}
.article-card{display:flex;flex-direction:column;align-items:flex-start;gap:14px;background:var(--panel);border:1px solid var(--line);border-radius:var(--r-standard);padding:28px;box-shadow:var(--lift-sm)}
.article-card h3{margin:0;font-size:22px}
.article-card h3 a:hover{text-decoration:underline;text-underline-offset:5px}
.article-card p{color:var(--muted);line-height:1.8;margin:0}
.article-meta{display:flex;align-items:center;flex-wrap:wrap;gap:12px;color:var(--muted);font-family:var(--font-mono);font-size:12px}
.article-card>a{display:inline-flex;align-items:center;min-height:28px;margin-top:auto;font-weight:var(--weight-bold);font-size:14px}
.blog-stamp{position:relative;background:var(--panel-2);border:1px solid var(--line);border-radius:var(--r-standard);padding:40px 132px 40px 36px;overflow-x:clip}
.blog-stamp::after{content:"流量\A 加注";white-space:pre;position:absolute;right:26px;top:28px;width:80px;height:80px;display:grid;place-content:center;text-align:center;border:3px double var(--line-strong);border-radius:var(--r-round);color:var(--muted);font-weight:var(--weight-heavy);transform:rotate(-10deg)}
.blog-stamp h1{font-size:clamp(36px,4vw,52px);margin-bottom:0}
.callout{margin:24px 0;padding:24px 28px;border-left:3px solid var(--line-strong);background:var(--panel-2);border-radius:0 var(--r-panel) var(--r-panel) 0;color:var(--ink);line-height:1.85}
.callout p:last-child{margin-bottom:0}
.promo-block{display:flex;align-items:center;justify-content:space-between;gap:24px;background:var(--panel-2);border:1px solid var(--line);border-radius:var(--r-standard);padding:32px;box-shadow:inset 0 1px 0 var(--white-90),var(--lift-sm)}
.promo-block h2{font-size:24px;margin:0 0 8px}
.promo-block p{margin:0;color:var(--muted)}
.promo-block .btn{flex-shrink:0;white-space:nowrap}
.stats-band{display:flex;justify-content:center;gap:48px;flex-wrap:wrap;padding:24px;border-block:1px solid var(--line);background:var(--panel)}
.stat{font-family:var(--font-mono);font-size:16px}
.counter-value,[data-counter]{display:inline-block;min-width:3ch;text-align:right;font-variant-numeric:tabular-nums;font-family:var(--font-mono)}
.ticker{overflow:hidden;max-width:100%;border-block:1px solid var(--line);background:var(--panel-2);padding-block:18px}
.ticker-track{display:flex;align-items:center;width:max-content;will-change:transform}
.ticker-group{display:flex;align-items:center;gap:40px;flex-shrink:0;padding-right:40px}
.ticker-group>span{font-family:var(--font-mono);font-size:14px;white-space:nowrap}
.preview-stack{display:grid;gap:28px}
.preview-row{display:flex;flex-wrap:wrap;align-items:center;gap:16px}
.preview-swatches{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:16px}
.swatch{border:1px solid var(--line);background:var(--panel);border-radius:var(--r-panel);overflow:hidden}
.swatch-color{height:72px;border-bottom:1px solid var(--line)}
.swatch code{display:block;padding:10px;font-size:12px}
.sw-bg{background:var(--bg)}
.sw-panel{background:var(--panel)}
.sw-panel2{background:var(--panel-2)}
.sw-line{background:var(--line)}
.sw-line-strong{background:var(--line-strong)}
.sw-accent{background:var(--accent)}
.sw-wine{background:var(--wine)}
.sw-ink{background:var(--ink)}
.sw-muted{background:var(--muted)}
.sw-success{background:var(--success)}
.sw-warn{background:var(--warn)}
.sw-error{background:var(--error)}
.sw-navy{background:var(--flag-navy)}
.type-mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums}
.type-lead{font-size:20px;color:var(--muted)}
.preview-symbols{position:absolute;width:0;height:0;overflow:hidden;pointer-events:none}
@media(max-width:1100px){
  .rig{width:92%}
  .routes{flex-wrap:wrap}
  .route-type{margin-left:0}
}
@media(max-width:768px){
  .hero{padding-top:24px;padding-bottom:40px}
  .lockup{gap:10px;margin-bottom:18px}
  .lockup-brand{font-size:16px}
  .display{font-size:38px;margin-bottom:22px}
  .cta-pair{gap:10px}
  .lede{font-size:15px}
  .trust{font-size:13px}
  .platforms{gap:16px 20px}
  .rig{width:100%;margin-top:28px}
  .rig-card{padding:58px 16px 64px}
  .rig-main{grid-template-columns:1fr}
  .routes{flex-wrap:wrap}
  .route-type{margin-left:0;width:100%;white-space:normal}
  .float-shield{top:14px;left:14px;transform:none}
  .float-ticket{right:16px;bottom:16px;transform:none}
  .stamp-forever{right:4px}
  .feature-head{display:none}
  .feature-ledger summary{grid-template-columns:1fr}
  .feature-ledger summary>span{padding:14px 20px}
  .feature-ledger summary>span:nth-child(2){padding-top:0}
  .feature-detail{margin-left:0;padding:0 20px 24px}
  .promo-block{flex-direction:column;align-items:flex-start;padding:24px}
  .stats-band{gap:20px}
}
@media(max-width:640px){
  .lockup-fact{font-size:12px}
  .stamp-forever{transform:none}
  .blog-stamp{padding:28px}
  .blog-stamp::after{display:none}
}
@media(max-width:380px){
  .lockup{gap:7px}
  .lockup-brand{font-size:14px}
  .lockup-brand img{width:24px;height:24px}
  .lockup-fact{font-size:10px}
  .display{font-size:32px}
  .tray,.depot{padding-inline:12px}
  .tray-head{height:auto;gap:8px;align-items:flex-start;flex-direction:column}
  .bar-cap{font-size:13px}
  .bar-price{font-size:11px}
  .packs li{gap:8px}
  .grid-five{grid-template-columns:1fr}
}
@media(prefers-reduced-motion:reduce){
  .ticker-track{width:100%;transform:none!important;will-change:auto}
  .ticker-group{flex-wrap:wrap;justify-content:center;padding-inline:20px;gap:16px}
  .ticker-group[ data-ticker-copy]{display:none}
}