:root{
    --brand:#C84A5A;--brand-deep:#9f3444;--copper:#D08A48;--accent:#E59A3A;
    --bg:#17171A;--bg-deep:#121214;--panel:#222226;--panel-2:#2a2a2f;--line:#3a393e;
    --text:#F1EEEE;--muted:#A9A3A6;--soft:#d3ced0;--shadow:0 24px 70px rgba(0,0,0,.28);
    --radius:22px;--radius-sm:14px;--max:1180px;--reading:860px;
}
*{box-sizing:border-box}html{scroll-behavior:smooth}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;-webkit-font-smoothing:antialiased}img{max-width:100%;height:auto;display:block}a{color:inherit;text-decoration:none}button,input{font:inherit}button{cursor:pointer}.shell{width:min(calc(100% - 40px),var(--max));margin-inline:auto}.reading-shell{width:min(100%,var(--reading));margin-inline:auto}.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:16px;top:12px;z-index:9999;background:var(--accent);color:#1d1308;padding:10px 14px;border-radius:8px;transform:translateY(-150%);font-weight:800}.skip-link:focus{transform:none}
.site-header{position:sticky;top:0;z-index:80;background:rgba(18,18,20,.94);backdrop-filter:blur(14px);border-bottom:1px solid rgba(255,255,255,.07)}.header-inner{min-height:78px;display:flex;align-items:center;gap:24px}.brand{display:flex;align-items:center;gap:11px;min-width:max-content}.brand img{width:44px;height:44px;object-fit:contain;border-radius:10px}.brand span{display:grid;line-height:1.15}.brand strong{font-size:19px;letter-spacing:.02em}.brand small{font-size:11px;color:var(--muted);margin-top:5px}.site-nav{display:flex;align-items:center;gap:3px;margin-left:auto}.site-nav a{padding:9px 11px;border-radius:10px;color:var(--soft);font-size:14px}.site-nav a:hover,.site-nav a:focus-visible{background:var(--panel);color:var(--text)}.search-open{border:1px solid var(--line);background:var(--panel);color:var(--text);border-radius:999px;padding:9px 15px}.search-open:hover{border-color:var(--brand)}.menu-toggle{display:none;background:none;border:0;padding:8px}.menu-toggle>span:not(.sr-only){display:block;width:24px;height:2px;background:var(--text);margin:5px}
.search-modal[hidden]{display:none !important}.search-modal{position:fixed;inset:0;z-index:120;display:grid;place-items:start center;padding:8vh 20px 20px}.search-backdrop{position:absolute;inset:0;background:rgba(0,0,0,.72)}.search-panel{position:relative;width:min(680px,100%);background:var(--panel);border:1px solid var(--line);border-radius:22px;box-shadow:var(--shadow);padding:26px}.search-panel__head{display:flex;justify-content:space-between;align-items:center;gap:20px}.search-panel__head h2{margin:0;font-size:24px}.search-panel__head button{width:42px;height:42px;border-radius:50%;border:1px solid var(--line);background:var(--bg);color:var(--text);font-size:25px}.search-form label{display:block;color:var(--muted);margin:18px 0 8px}.search-line,.inline-search{display:flex;gap:10px}.search-line input,.inline-search input{flex:1;min-width:0;background:var(--bg-deep);border:1px solid var(--line);border-radius:12px;color:var(--text);padding:13px 14px;outline:none}.search-line input:focus,.inline-search input:focus{border-color:var(--copper);box-shadow:0 0 0 3px rgba(208,138,72,.12)}.search-line button,.inline-search button{border:0;border-radius:12px;background:var(--accent);color:#211508;font-weight:800;padding:12px 18px}.search-hint{color:var(--muted);font-size:13px;margin-bottom:0}body.modal-open{overflow:hidden}
.home-hero{padding:72px 0 54px;background:radial-gradient(circle at 82% 18%,rgba(200,74,90,.16),transparent 26%),linear-gradient(180deg,var(--bg-deep),var(--bg))}.home-hero__grid,.page-hero__grid{display:grid;grid-template-columns:minmax(0,1.07fr) minmax(360px,.93fr);gap:56px;align-items:center}.home-hero__copy h1,.page-hero h1,.article-head h1{font-size:clamp(38px,5.3vw,70px);line-height:1.08;letter-spacing:-.035em;margin:12px 0 20px}.eyebrow{display:inline-block;margin:0;color:#f0b16a;font-size:13px;font-weight:800;letter-spacing:.12em}.lead{font-size:18px;color:var(--soft);max-width:760px}.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}.btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 18px;border-radius:12px;font-weight:800}.btn--primary{background:var(--brand);color:#fff}.btn--primary:hover{background:#d35767}.btn--ghost{border:1px solid var(--line);background:rgba(255,255,255,.02)}.btn--ghost:hover{border-color:var(--copper)}.hero-points{display:grid;gap:8px;padding:0;margin:28px 0 0;list-style:none;color:var(--muted);font-size:14px}.hero-points li{position:relative;padding-left:18px}.hero-points li:before{content:"";position:absolute;left:0;top:.7em;width:6px;height:6px;border-radius:50%;background:var(--copper)}.home-hero__media{position:relative;margin:0}.home-hero__media img{width:100%;aspect-ratio:1.16/1;object-fit:cover;border-radius:30px;border:1px solid rgba(255,255,255,.08);box-shadow:var(--shadow)}.home-hero__media figcaption{position:absolute;right:18px;bottom:18px;left:18px;background:rgba(18,18,20,.82);backdrop-filter:blur(10px);border:1px solid rgba(255,255,255,.08);padding:12px 14px;border-radius:12px;color:var(--soft);font-size:13px}
.section{padding:76px 0}.section--compact{padding:44px 0}.section--tone{background:var(--bg-deep);border-block:1px solid rgba(255,255,255,.05)}.section--image-note{padding:60px 0}.section--faq-preview{background:linear-gradient(180deg,var(--bg),var(--bg-deep))}.section--closing{background:radial-gradient(circle at 12% 20%,rgba(229,154,58,.12),transparent 28%),var(--panel)}.section h2{font-size:clamp(27px,3.5vw,44px);line-height:1.18;letter-spacing:-.025em;margin:10px 0 18px}.section h3{line-height:1.35}.section p{color:var(--soft)}.section-head{display:flex;align-items:end;justify-content:space-between;gap:28px;margin-bottom:28px}.section-head h2{margin-bottom:0}.center-title{text-align:center;margin-bottom:36px!important}.text-link{color:#f2b36d;font-weight:800;text-decoration:underline;text-decoration-color:rgba(229,154,58,.35);text-underline-offset:4px}.text-link:hover{text-decoration-color:currentColor}.statement-list{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:18px;overflow:hidden;margin-top:26px}.statement-list article{background:var(--panel);padding:24px}.statement-list span{color:var(--copper);font-weight:900}.statement-list h3{margin:7px 0}.statement-list p{margin:0;font-size:14px}.split-feature{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}.split-feature img{border-radius:24px;border:1px solid var(--line);width:100%;max-height:540px;object-fit:cover}.split-feature__text p{max-width:700px}.info-board{border:1px solid var(--line);border-radius:22px;background:var(--panel);overflow:hidden}.info-board>div{display:grid;grid-template-columns:130px 1fr;gap:24px;padding:18px 20px;border-bottom:1px solid var(--line)}.info-board>div:last-child{border-bottom:0}.info-board strong{color:#f0b16a}.info-board span{color:var(--soft)}.app-ribbon,.mobile-band,.visual-note,.minor-callout{display:grid;grid-template-columns:minmax(280px,.78fr) 1.22fr;gap:48px;align-items:center}.app-ribbon img,.mobile-band img,.visual-note img,.minor-callout img{border-radius:24px;border:1px solid var(--line);width:100%;object-fit:cover}.inline-links{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}.inline-links a{padding:9px 12px;background:var(--panel);border:1px solid var(--line);border-radius:10px;color:#f1c08a}.plain-list{list-style:none;padding:0;margin:22px 0 0;display:grid;gap:10px}.plain-list a{display:block;padding:12px 0;border-bottom:1px solid var(--line);color:var(--text)}.plain-list a:after{content:" →";color:var(--copper)}.check-columns,.status-grid,.decision-table{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;margin-top:28px}.check-columns>div,.status-grid>div,.decision-table>div{background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:20px}.check-columns h3,.status-grid strong,.decision-table strong{color:#f2b36d}.check-columns p,.status-grid p{margin-bottom:0}.decision-table>div{display:grid;gap:8px}.decision-table span{color:var(--soft)}
.topic-list{display:grid;gap:1px;background:var(--line);border:1px solid var(--line);border-radius:20px;overflow:hidden}.topic-row{position:relative;background:var(--panel);padding:24px 26px}.topic-row:hover{background:#27272c}.topic-row__meta{display:flex;gap:8px;flex-wrap:wrap}.topic-row__meta span{font-size:12px;padding:4px 8px;border-radius:999px;background:rgba(208,138,72,.1);color:#efb776;border:1px solid rgba(208,138,72,.22)}.topic-row h3{font-size:21px;margin:10px 0 6px}.topic-row h3 a:after{content:"";position:absolute;inset:0}.topic-row p{margin:0 0 8px;max-width:900px}.topic-row .text-link{position:relative;z-index:1;font-size:13px}.mobile-band{grid-template-columns:1.12fr .88fr}.minor-callout{padding:26px;border:1px solid var(--line);border-radius:22px;background:var(--panel)}.minor-callout--reverse{grid-template-columns:.8fr 1.2fr}.faq-stack{display:grid;gap:10px}.faq-stack details{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:0 18px}.faq-stack summary{cursor:pointer;font-weight:800;padding:17px 34px 17px 0;position:relative}.faq-stack summary:after{content:"+";position:absolute;right:0;top:13px;font-size:24px;color:var(--copper)}.faq-stack details[open] summary:after{content:"−"}.faq-stack p{margin:0 0 18px}.faq-stack--large details{padding-inline:22px}.faq-stack--large summary{font-size:18px}.closing-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:50px;align-items:start}.closing-links{display:grid;grid-template-columns:1fr 1fr;gap:12px}.closing-links a{display:grid;gap:5px;background:var(--bg-deep);border:1px solid var(--line);border-radius:14px;padding:17px}.closing-links a:hover{border-color:var(--copper)}.closing-links span{font-size:13px;color:var(--muted)}
.page-shell{padding-top:18px}.breadcrumbs{font-size:13px;color:var(--muted)}.breadcrumbs ol{list-style:none;display:flex;flex-wrap:wrap;gap:8px;padding:0;margin:0}.breadcrumbs li:not(:last-child):after{content:"/";margin-left:8px;color:#666}.breadcrumbs a:hover{color:var(--text)}.page-hero{padding:54px 0 44px;background:linear-gradient(180deg,var(--bg-deep),var(--bg))}.page-hero--split{padding-bottom:58px}.page-hero__grid img{width:100%;max-height:500px;object-fit:cover;border-radius:26px;border:1px solid var(--line);box-shadow:var(--shadow)}.page-hero h1{font-size:clamp(36px,4.8vw,62px)}.number-list{padding-left:1.4em;display:grid;gap:10px;color:var(--soft)}.number-list strong{color:var(--text)}.note-box{margin:24px 0;padding:18px 20px;border-left:4px solid var(--accent);background:rgba(229,154,58,.08);border-radius:0 14px 14px 0}.note-box strong{color:#f2b36d}.note-box p{margin:6px 0 0}.path-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.path-grid a{position:relative;background:var(--panel);border:1px solid var(--line);border-radius:18px;padding:23px}.path-grid a:hover{transform:translateY(-2px);border-color:var(--brand)}.path-grid span{display:block;color:var(--brand);font-weight:900;margin-bottom:20px}.path-grid strong{font-size:18px}.path-grid p{margin-bottom:0;font-size:14px}.topic-cluster:nth-of-type(even){background:var(--bg-deep);border-block:1px solid rgba(255,255,255,.05)}.cluster-title{display:flex;align-items:end;gap:16px;margin-bottom:24px}.cluster-title h2{margin:0}.cluster-title span{margin-left:auto;color:var(--muted);font-size:13px}
.article-head{padding:50px 0 28px;background:linear-gradient(180deg,var(--bg-deep),var(--bg))}.article-head__grid{display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center}.article-head img{width:100%;max-height:500px;object-fit:cover;border-radius:24px;border:1px solid var(--line)}.article-head h1{font-size:clamp(34px,4.6vw,60px)}.article-facts{display:grid;gap:10px;margin:25px 0 0}.article-facts>div{display:grid;grid-template-columns:90px 1fr;gap:14px;padding-top:10px;border-top:1px solid var(--line)}.article-facts dt{color:var(--muted);font-size:13px}.article-facts dd{margin:0;color:var(--soft)}.article-layout{display:grid;grid-template-columns:230px minmax(0,760px);gap:60px;justify-content:center;padding-block:48px 82px}.article-toc{position:sticky;top:110px;align-self:start;background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:18px}.article-toc strong{font-size:14px}.article-toc ol{padding-left:20px;margin:12px 0 0;color:var(--muted);font-size:13px;display:grid;gap:8px}.article-toc a:hover{color:var(--text)}.article-body section{scroll-margin-top:110px;padding:0 0 34px;margin-bottom:34px;border-bottom:1px solid var(--line)}.article-body section:last-of-type{border-bottom:0}.article-body h2{font-size:30px;line-height:1.25;margin:0 0 15px}.article-body p{font-size:17px;color:var(--soft);margin:0}.article-next{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:20px}.article-next a{display:grid;gap:5px;border:1px solid var(--line);background:var(--panel);border-radius:14px;padding:16px}.article-next a:hover{border-color:var(--copper)}.article-next span{color:var(--muted);font-size:13px}.prose{max-width:850px}.prose section{padding:0 0 34px;margin-bottom:34px;border-bottom:1px solid var(--line)}.prose section:last-child{border-bottom:0;margin-bottom:0}.prose h2{font-size:30px}.prose p{font-size:17px}.search-results{display:grid;gap:12px;margin-top:24px}.search-results article{padding:20px;border:1px solid var(--line);border-radius:14px;background:var(--panel)}.search-results article>span{display:inline-block;color:#f1b36f;font-size:12px;margin-bottom:6px}.search-results h3{margin:0 0 6px}.search-results h3 a:hover{color:#f1b36f}.search-results p{margin:0}.empty-state{text-align:center;border:1px dashed var(--line);border-radius:18px;padding:44px 24px}.empty-state h2{font-size:28px}.inline-search{margin-top:24px}
.site-footer{background:var(--bg-deep);border-top:1px solid var(--line);padding:58px 0 24px}.footer-grid{display:grid;grid-template-columns:1.6fr repeat(3,1fr);gap:36px}.footer-brand p{color:var(--muted);max-width:420px}.brand--footer{margin-bottom:18px}.footer-group h2{font-size:14px;color:#f1b36f;margin:0 0 14px}.footer-group ul{list-style:none;padding:0;margin:0;display:grid;gap:8px}.footer-group a{color:var(--muted);font-size:14px}.footer-group a:hover{color:var(--text)}.footer-bottom{display:flex;justify-content:space-between;gap:20px;border-top:1px solid var(--line);padding-top:20px;margin-top:34px;color:#777;font-size:12px}.back-top{position:fixed;right:20px;bottom:20px;width:44px;height:44px;border-radius:50%;border:1px solid var(--line);background:var(--panel);color:var(--text);box-shadow:var(--shadow);opacity:0;pointer-events:none;transform:translateY(10px);transition:.2s}.back-top.is-visible{opacity:1;pointer-events:auto;transform:none}
@media (max-width:1100px){.site-nav{position:absolute;left:20px;right:20px;top:72px;display:none;flex-direction:column;align-items:stretch;background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:10px;box-shadow:var(--shadow)}.site-nav.is-open{display:flex}.menu-toggle{display:block;margin-left:auto}.search-open{margin-left:0}.home-hero__grid,.page-hero__grid,.article-head__grid{grid-template-columns:1fr 420px;gap:36px}.footer-grid{grid-template-columns:1.4fr repeat(3,.8fr)}}
@media (max-width:900px){.home-hero__grid,.page-hero__grid,.article-head__grid,.split-feature,.app-ribbon,.mobile-band,.visual-note,.minor-callout,.closing-grid{grid-template-columns:1fr}.home-hero__media{max-width:720px}.page-hero__grid img,.article-head__grid img{max-height:420px}.article-layout{grid-template-columns:1fr;gap:24px}.article-toc{position:static}.article-toc ol{grid-template-columns:1fr 1fr}.footer-grid{grid-template-columns:1.5fr 1fr 1fr}.footer-group:last-child{grid-column:2/4}.path-grid{grid-template-columns:1fr 1fr}.statement-list{grid-template-columns:1fr}.closing-links{grid-template-columns:1fr 1fr}}
@media (max-width:700px){.shell{width:min(calc(100% - 28px),var(--max))}.header-inner{min-height:68px;gap:10px}.brand small{display:none}.search-open{font-size:12px;padding:8px 10px}.home-hero{padding-top:48px}.home-hero__copy h1,.page-hero h1,.article-head h1{font-size:38px}.lead{font-size:16px}.section{padding:56px 0}.section-head{align-items:start;flex-direction:column}.check-columns,.status-grid,.decision-table,.path-grid,.closing-links,.article-next{grid-template-columns:1fr}.article-toc ol{grid-template-columns:1fr}.article-body h2,.prose h2{font-size:25px}.article-body p,.prose p{font-size:16px}.footer-grid{grid-template-columns:1fr 1fr}.footer-brand{grid-column:1/3}.footer-group:last-child{grid-column:auto}.footer-bottom{flex-direction:column}.inline-search,.search-line{flex-direction:column}.info-board>div{grid-template-columns:1fr;gap:4px}.cluster-title{align-items:start;flex-direction:column}.cluster-title span{margin-left:0}.topic-row{padding:20px}.hero-actions>.btn{width:100%}}
@media (max-width:480px){.header-inner{min-height:64px}.brand img{width:38px;height:38px}.brand strong{font-size:17px}.search-open{display:none}.site-nav{top:62px}.home-hero__copy h1,.page-hero h1,.article-head h1{font-size:34px}.home-hero__media img{border-radius:20px}.home-hero__media figcaption{position:static;border-radius:0 0 16px 16px}.section{padding:48px 0}.footer-grid{grid-template-columns:1fr}.footer-brand,.footer-group:last-child{grid-column:auto}.search-modal{padding-inline:12px}.search-panel{padding:20px}.back-top{right:14px;bottom:14px}}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}.back-top,.path-grid a{transition:none}}
.scenario-section{padding-top:8px}.scenario-intro{margin-top:-4px!important;color:var(--muted)!important}.scenario-list{display:grid;gap:14px;margin-top:24px}.scenario-card{background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:20px}.scenario-card h3{margin:0 0 12px;font-size:19px;color:#f1b36f}.scenario-card p{font-size:15px!important;margin:8px 0!important}.scenario-card strong{color:var(--text)}