:root{--bg:#05060a;--panel:#0b0d15;--panel-2:#111425;--line:#252a43;--text:#f5f7ff;--muted:#a7adc2;--blue:#2f80ff;--cyan:#52d7ff;--purple:#8f5cff;--danger:#ffb45c;--safe:#8af7d0;--max:1180px;--radius:18px}
*{box-sizing:border-box}
html{scroll-behavior:smooth;color-scheme:dark}
body{margin:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;line-height:1.72}
a{color:inherit;text-decoration:none}
a:hover{color:var(--cyan)}
button,input,textarea{font:inherit}
button{color:inherit}
img{display:block;max-width:100%}
.skip-link{position:absolute;left:16px;top:-60px;z-index:100;background:var(--text);color:var(--bg);padding:10px 16px;border-radius:8px}
.skip-link:focus{top:12px}
:focus-visible{outline:3px solid var(--cyan);outline-offset:4px}
.site-header{position:sticky;top:0;z-index:30;border-bottom:1px solid rgba(82,215,255,.18);background:rgba(5,6,10,.9);backdrop-filter:blur(18px)}
.header-shell{max-width:var(--max);margin:auto;min-height:72px;padding:0 22px;display:flex;align-items:center;gap:26px}
.brand{font-weight:850;letter-spacing:-.04em;font-size:1.18rem;margin-right:auto}
.brand::before{content:"";display:inline-block;width:14px;height:14px;margin-right:10px;background:linear-gradient(135deg,var(--cyan),var(--purple));box-shadow:0 0 18px var(--blue)}
#site-nav{display:flex;gap:16px;align-items:center;font-size:.84rem;color:var(--muted)}
#site-nav a:last-child{color:var(--text);border:1px solid var(--line);border-radius:999px;padding:7px 13px}
.nav-toggle{display:none;background:none;border:1px solid var(--line);border-radius:8px;padding:7px 10px}
main{overflow:hidden}
.page-hero{max-width:var(--max);margin:auto;padding:80px 22px 34px;position:relative}
.page-hero::after{content:"";position:absolute;right:5%;top:25px;width:280px;height:280px;background:radial-gradient(circle,rgba(91,69,255,.17),transparent 68%);pointer-events:none}
.eyebrow,.kicker{font:700 .72rem/1.2 ui-monospace,SFMono-Regular,Menlo,monospace;letter-spacing:.16em;color:var(--cyan)}
.page-hero h1{max-width:950px;font-size:clamp(2.25rem,6vw,5.3rem);line-height:1.02;letter-spacing:-.065em;margin:17px 0 20px}
.page-hero>p{max-width:760px;color:var(--muted);font-size:1.05rem}
.section-shell{max-width:var(--max);margin:0 auto;padding:72px 22px}
.section-heading{max-width:760px;margin-bottom:34px}
.section-heading.split{max-width:none;display:flex;justify-content:space-between;gap:30px;align-items:end}
.section-heading h2,.deep-layout h2,.safety-banner h2{font-size:clamp(1.75rem,4vw,3.2rem);line-height:1.08;letter-spacing:-.045em;margin:10px 0 14px}
.section-heading p,.deep-layout p{color:var(--muted)}
.home .page-hero{padding-bottom:10px}
.home .page-hero>p{display:none}
.home-hero{padding-top:30px;display:grid;grid-template-columns:.86fr 1.14fr;gap:52px;align-items:center}
.hero-copy h2{font-size:clamp(2rem,4vw,4rem);line-height:1.06;letter-spacing:-.05em;margin:24px 0 18px}
.hero-copy>p{color:var(--muted);font-size:1.08rem}
.status-row{display:flex;flex-wrap:wrap;gap:8px}
.status{border:1px solid var(--line);border-radius:999px;padding:5px 10px;color:var(--muted);font-size:.78rem}
.status.safe{color:var(--safe);border-color:rgba(138,247,208,.35)}
.status.warning{color:var(--danger);border-color:rgba(255,180,92,.35)}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.button{display:inline-flex;justify-content:center;align-items:center;min-height:46px;padding:0 18px;border-radius:11px;font-weight:750}
.button.primary{background:linear-gradient(135deg,var(--blue),var(--purple));box-shadow:0 10px 36px rgba(47,128,255,.2)}
.button.secondary{border:1px solid var(--line);background:rgba(255,255,255,.02)}
.hero-visual{margin:0;position:relative}
.hero-visual::before{content:"";position:absolute;inset:-18px;background:linear-gradient(135deg,rgba(47,128,255,.2),rgba(143,92,255,.08));filter:blur(28px);z-index:-1}
.hero-visual img{width:100%;border:1px solid var(--line);border-radius:22px;object-fit:cover;background:#050711}
.hero-visual figcaption{font-size:.78rem;color:var(--muted);margin-top:10px}
.metric-strip{max-width:var(--max);margin:25px auto 0;padding:0 22px;display:grid;grid-template-columns:repeat(4,1fr)}
.metric-strip div{display:flex;flex-direction:column;border:1px solid var(--line);border-right:0;padding:20px;background:var(--panel)}
.metric-strip div:first-child{border-radius:14px 0 0 14px}
.metric-strip div:last-child{border-right:1px solid var(--line);border-radius:0 14px 14px 0}
.metric-strip strong{font:800 1.6rem ui-monospace,monospace;color:var(--cyan)}
.metric-strip span{color:var(--muted);font-size:.82rem}
.trust-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.trust-grid>div{padding:26px;border:1px solid var(--line);border-radius:var(--radius);background:linear-gradient(145deg,var(--panel),rgba(17,20,37,.65))}
.trust-grid span,.channel-number{font:700 .78rem ui-monospace,monospace;color:var(--purple)}
.trust-grid h3{margin:18px 0 7px}
.trust-grid p{color:var(--muted);margin:0}
.filter-section{max-width:calc(var(--max) + 44px);padding-left:44px;padding-right:44px;background:linear-gradient(180deg,rgba(47,128,255,.06),rgba(143,92,255,.035));border:1px solid var(--line);border-radius:28px}
.result-count{min-width:135px;text-align:right}
.result-count strong{display:block;font:800 2.4rem ui-monospace,monospace;color:var(--cyan)}
.result-count span{color:var(--muted);font-size:.8rem}
.filter-controls{margin-bottom:28px}
.filter-controls label{display:block;color:var(--muted);font-size:.82rem;margin-bottom:8px}
.filter-controls input{width:100%;border:1px solid var(--line);border-radius:12px;background:#090b12;color:var(--text);padding:15px 17px}
.filter-controls input::placeholder{color:#697087}
.filter-buttons{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.filter-buttons button,.clear-button{border:1px solid var(--line);border-radius:999px;background:transparent;padding:7px 13px;cursor:pointer}
.filter-buttons button.active{background:var(--text);color:var(--bg);border-color:var(--text)}
.clear-button{margin-top:14px;color:var(--cyan)}
.article-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.article-grid.compact{grid-template-columns:repeat(3,1fr)}
.article-card{display:flex;flex-direction:column;min-height:270px;padding:22px;border:1px solid var(--line);border-radius:15px;background:var(--panel);transition:transform .2s,border-color .2s}
.article-card:hover{transform:translateY(-3px);border-color:rgba(82,215,255,.55)}
.article-card[hidden]{display:none}
.card-top{display:flex;justify-content:space-between;color:var(--muted);font:650 .7rem ui-monospace,monospace}
.article-card h3{font-size:1.12rem;line-height:1.4;margin:24px 0 10px}
.article-card p{color:var(--muted);font-size:.88rem;margin:0 0 20px}
.tag-row{display:flex;flex-wrap:wrap;gap:6px;margin-top:auto}
.tag{display:inline-block;border:1px solid rgba(143,92,255,.3);background:rgba(143,92,255,.08);color:#cfc1ff;border-radius:999px;padding:3px 8px;font-size:.7rem}
.tag.large{font-size:.88rem;padding:7px 13px}
.empty-state{padding:35px;border:1px dashed var(--line);border-radius:14px;color:var(--muted);text-align:center}
.channel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.channel-card{position:relative;min-height:240px;padding:24px;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:linear-gradient(145deg,var(--panel),#080a10)}
.channel-card::after{content:"";position:absolute;width:130px;height:130px;right:-70px;bottom:-70px;border:1px solid var(--blue);transform:rotate(45deg);opacity:.35}
.channel-card h3{font-size:1.45rem;margin:35px 0 8px}
.channel-card p{color:var(--muted)}
.focus{font:650 .72rem ui-monospace,monospace;color:var(--cyan)}
.deep-dive{background:linear-gradient(110deg,#080a12,#101023 55%,#080a12);border-block:1px solid var(--line)}
.deep-layout{display:grid;grid-template-columns:.85fr 1.15fr;gap:70px;align-items:center}
.mini-grid{display:grid;grid-template-columns:repeat(8,1fr);gap:7px;transform:perspective(800px) rotateY(10deg) rotateX(3deg)}
.mini-grid span{aspect-ratio:1;border:1px solid rgba(82,215,255,.25);background:linear-gradient(135deg,rgba(47,128,255,.12),rgba(143,92,255,.16));box-shadow:0 0 calc((var(--n) % 7) * 2px) rgba(82,215,255,.25)}
.mini-grid span:nth-child(9n),.mini-grid span:nth-child(13n){background:var(--blue);box-shadow:0 0 18px var(--blue)}
.deep-layout h3{margin:30px 0 6px}
.inline-links{display:flex;gap:20px;margin-top:28px;font-weight:700}
.inline-links a{color:var(--cyan)}
.safety-banner{display:grid;grid-template-columns:.65fr 1.3fr .4fr;gap:36px;align-items:center}
.safety-banner ol{list-style:none;padding:0;margin:0;border-left:1px solid var(--line)}
.safety-banner li{display:grid;grid-template-columns:74px 1fr;gap:16px;padding:13px 22px}
.safety-banner li+li{border-top:1px solid var(--line)}
.safety-banner span{color:var(--muted)}
.faq-list{display:grid;gap:10px}
.faq-list details{border:1px solid var(--line);border-radius:13px;background:var(--panel);padding:0 20px}
.faq-list summary{cursor:pointer;font-weight:760;padding:18px 0}
.faq-list details p{color:var(--muted);padding:0 0 18px;margin:0}
.feedback-section{border-top:1px solid var(--line)}
.feedback-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
blockquote{margin:0;padding:25px;border:1px solid var(--line);border-radius:var(--radius);background:var(--panel)}
blockquote p{font-size:1.05rem}
blockquote cite{color:var(--muted);font-style:normal;font-size:.78rem}
.channel-intro{display:grid;grid-template-columns:180px 1fr;gap:40px;align-items:center}
.channel-index{font:800 clamp(5rem,14vw,10rem)/1 ui-monospace,monospace;color:transparent;-webkit-text-stroke:1px var(--purple)}
.cross-nav{border-top:1px solid var(--line)}
.cross-nav>div{display:flex;flex-wrap:wrap;gap:10px}
.matrix-link{border:1px solid var(--line);padding:10px 14px;border-radius:9px;color:var(--muted)}
.article-layout{padding-top:18px}
.article-meta{display:flex;flex-wrap:wrap;gap:18px;border-block:1px solid var(--line);padding:14px 0;color:var(--muted);font-size:.8rem}
.article-meta a{color:var(--cyan)}
.article-lead{max-width:890px;padding:46px 0 34px}
.article-lead p{font-size:clamp(1.25rem,2.5vw,1.75rem);line-height:1.62;color:#dfe4f5}
.article-body{display:grid;grid-template-columns:260px minmax(0,720px);gap:70px;align-items:start}
.article-body aside{position:sticky;top:100px;border-top:2px solid var(--blue);padding-top:18px}
.article-body aside>p{color:var(--muted);font-size:.86rem}
.article-body .micro-note{border-top:1px solid var(--line);padding-top:16px;margin-top:20px}
.prose h2{font-size:1.8rem;line-height:1.25;margin:50px 0 14px}
.prose h2:first-child{margin-top:0}
.prose h3{font-size:1.15rem;margin:30px 0 8px}
.prose p{color:#c1c6d7}
.check-list{list-style:none;padding:0}
.check-list li{position:relative;padding:13px 15px 13px 42px;border:1px solid var(--line);background:var(--panel);margin:8px 0;border-radius:10px}
.check-list li::before{content:"✓";position:absolute;left:15px;color:var(--safe)}
.step-list{list-style:none;padding:0}
.step-list li{display:grid;grid-template-columns:54px 1fr;gap:18px;padding:22px 0;border-top:1px solid var(--line)}
.step-list span{font:800 1.3rem ui-monospace,monospace;color:var(--purple)}
.step-list h3{margin:0}
.step-list p{margin:5px 0 0;font-size:.9rem}
.takeaway{margin:40px 0;padding:26px;border:1px solid rgba(82,215,255,.35);background:linear-gradient(135deg,rgba(47,128,255,.08),rgba(143,92,255,.08));border-radius:15px}
.takeaway span{font:700 .7rem ui-monospace,monospace;color:var(--cyan);letter-spacing:.14em}
.takeaway p{font-size:1.08rem;margin:8px 0 0!important;color:var(--text)!important}
.related-list{padding-left:18px}
.related-list li{margin:8px 0}
.related-list a{color:var(--cyan)}
.tag-index-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.tag-index-card{padding:22px;border:1px solid var(--line);border-radius:14px;background:var(--panel)}
.tag-index-card>span{font:700 .7rem ui-monospace,monospace;color:var(--purple)}
.tag-index-card h2{font-size:1.2rem;margin:18px 0 8px}
.tag-index-card p,.tag-index-card small{color:var(--muted)}
.tag-intro{padding-bottom:30px}
.back-link{margin-top:35px}
.back-link a{color:var(--cyan)}
.notice-box{padding:20px 22px;border:1px solid rgba(82,215,255,.3);border-radius:13px;background:rgba(47,128,255,.07);margin-bottom:30px}
.notice-box.warning{border-color:rgba(255,180,92,.35);background:rgba(255,180,92,.05)}
.notice-box p{color:var(--muted);margin:7px 0 0}
.author-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.author-card{padding:27px;border:1px solid var(--line);border-radius:var(--radius);background:var(--panel)}
.author-mark{display:grid;place-items:center;width:48px;height:48px;border:1px solid var(--blue);background:linear-gradient(135deg,rgba(47,128,255,.2),rgba(143,92,255,.2));border-radius:12px;font-size:1.3rem;font-weight:800}
.author-card>span{display:block;color:var(--purple);font-size:.72rem;margin-top:24px}
.author-card h2{margin:8px 0 0}
.author-card strong{font-size:.84rem;color:var(--cyan)}
.author-card p{color:var(--muted)}
.author-profile{display:grid;grid-template-columns:150px 1fr;gap:36px;align-items:start}
.author-mark.large{width:130px;height:130px;font-size:3rem}
.author-profile h2{font-size:2.1rem;margin:13px 0 8px}
.author-profile p{color:var(--muted)}
.filter-workbench{padding-top:20px}
.workbench-head{display:flex;justify-content:space-between;gap:30px;align-items:end;margin-bottom:24px}
.workbench-head h2{font-size:2rem;margin:8px 0}
.workbench-head p{color:var(--muted)}
.panel{padding:22px;border:1px solid var(--line);border-radius:15px;background:var(--panel)}
.check-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.check-panel{padding:24px;border:1px solid var(--line);border-radius:var(--radius);background:var(--panel)}
.check-panel>span,.evidence-card>span{font:700 .72rem ui-monospace,monospace;color:var(--purple)}
.check-panel h2{margin:18px 0}
.check-panel ul{list-style:none;padding:0}
.check-panel li{border-top:1px solid var(--line);padding:13px 0;color:var(--muted)}
.check-panel input{accent-color:var(--blue)}
.evidence-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.evidence-card{padding:24px;border:1px solid var(--line);border-radius:var(--radius);background:var(--panel)}
.evidence-card h2{margin:18px 0 5px}
.evidence-card p{color:var(--muted)}
.evidence-card label{display:block;color:var(--muted);font-size:.8rem}
.evidence-card textarea{width:100%;margin-top:7px;background:#080a10;border:1px solid var(--line);border-radius:9px;color:var(--text);padding:12px;resize:vertical}
.evidence-result{padding-top:45px}
.evidence-result>div{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.evidence-result section{padding:22px;border-left:3px solid var(--safe);background:var(--panel)}
.evidence-result section+section{border-color:var(--danger)}
.evidence-result p{color:var(--muted)}
.faq-list.numbered summary{font-family:ui-monospace,SFMono-Regular,Menlo,monospace}
.policy-page{max-width:850px}
.policy-lead{font-size:1.3rem;color:#dfe4f5}
.policy-page>section{padding:25px 0;border-top:1px solid var(--line)}
.policy-page h2{font-size:1.4rem}
.policy-page p{color:var(--muted)}
.error-layout{display:grid;grid-template-columns:1fr 1fr;gap:70px;align-items:center}
.error-code{font:800 1rem ui-monospace,monospace;color:var(--purple)}
.error-layout h2{font-size:2.5rem;line-height:1.1}
.error-layout p{color:var(--muted)}
.site-footer{max-width:var(--max);margin:70px auto 0;padding:35px 22px;border-top:1px solid var(--line);display:grid;grid-template-columns:1fr 1fr;gap:22px;color:var(--muted);font-size:.82rem}
.footer-brand{color:var(--text);font-weight:800;font-size:1rem}
.site-footer nav{display:flex;justify-content:flex-end;align-items:start;flex-wrap:wrap;gap:14px}
.footer-meta{grid-column:1/-1;border-top:1px solid var(--line);padding-top:18px}
@media(max-width:900px){
  .nav-toggle{display:block}#site-nav{display:none;position:absolute;left:16px;right:16px;top:68px;flex-direction:column;align-items:stretch;padding:18px;background:#090b12;border:1px solid var(--line);border-radius:14px}#site-nav.open{display:flex}
  .home-hero,.deep-layout,.article-body,.error-layout{grid-template-columns:1fr}.hero-visual{order:-1}.article-body aside{position:static}.deep-layout{gap:40px}.article-grid,.article-grid.compact,.channel-grid,.tag-index-grid{grid-template-columns:repeat(2,1fr)}
  .safety-banner{grid-template-columns:1fr}.check-grid{grid-template-columns:1fr}.site-footer{grid-template-columns:1fr}.site-footer nav{justify-content:flex-start}.footer-meta{grid-column:auto}
}
@media(max-width:620px){
  .page-hero{padding-top:58px}.section-shell{padding-top:52px;padding-bottom:52px}.metric-strip{grid-template-columns:repeat(2,1fr)}.metric-strip div{border-right:1px solid var(--line);border-radius:0!important}.trust-grid,.article-grid,.article-grid.compact,.channel-grid,.tag-index-grid,.author-grid,.evidence-grid,.evidence-result>div,.feedback-grid{grid-template-columns:1fr}.section-heading.split,.workbench-head{display:block}.result-count{text-align:left;margin-top:20px}.filter-section{border-radius:0;border-inline:0;padding-left:22px;padding-right:22px}.channel-intro,.author-profile{grid-template-columns:1fr}.channel-index{font-size:6rem}.article-lead{padding-top:30px}.safety-banner li{grid-template-columns:1fr;padding-inline:16px}.inline-links{flex-direction:column}.error-layout{gap:35px}
}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.article-card{transition:none}}