:root{--bg:#080808;--top:#050505;--panel:#121212;--card:#191919;--hover:#222;--red:#D71920;--red2:#F0343B;--deep:#8F1017;--text:#F5F5F5;--muted:#D9D9D9;--soft:#BDBDBD;--line:rgba(255,255,255,.13);--redline:rgba(215,25,32,.55);--shadow:0 14px 38px rgba(0,0,0,.38)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei",Arial,sans-serif;line-height:1.76;font-size:16px;overflow-x:hidden}body.panel-open{overflow:hidden}a{color:inherit;text-decoration:none}button,input{font:inherit}.shell{width:min(1220px,calc(100% - 32px));margin:0 auto}.skip-link{position:fixed;left:12px;top:-50px;background:#fff;color:#000;padding:8px 12px;z-index:1000}.skip-link:focus{top:12px}.site-header{position:relative;z-index:50}.brand-strip{height:22px;background:var(--deep);font-size:12px}.strip-inner{height:22px;display:flex;align-items:center;justify-content:space-between}.mini-brand{font-weight:800;letter-spacing:.03em}.mini-brand span{font-weight:600;opacity:.88;margin-left:6px}.strip-actions{display:flex;gap:14px;align-items:center}.text-btn{border:0;background:transparent;color:#fff;padding:0;cursor:pointer}.main-nav{height:56px;background:var(--top);border-bottom:1px solid var(--red)}.nav-inner{height:56px;display:flex;align-items:center;gap:28px}.brand{min-width:126px;font-size:21px;font-weight:900;letter-spacing:.05em}.brand img{display:block;max-height:28px;width:auto;max-width:150px;object-fit:contain}.desktop-main{display:flex;align-items:center;gap:25px;flex:1;height:100%}.desktop-main a{position:relative;display:flex;align-items:center;height:100%;padding:0 4px;font-weight:700;white-space:nowrap}.desktop-main a:after{content:"";position:absolute;left:4px;right:4px;bottom:0;height:3px;background:transparent}.desktop-main a:hover,.desktop-main a:focus-visible{color:var(--red2)}.desktop-main a.is-active:after{background:var(--red)}.nav-tools{display:flex;gap:8px}.nav-button{min-height:44px;border:1px solid var(--redline);border-radius:7px;background:#0d0d0d;color:#fff;padding:0 14px;cursor:pointer}.nav-button:hover,.nav-button:focus-visible{border-color:var(--red2);color:var(--red2)}.category-bar{height:38px;background:#0b0b0b;border-bottom:1px solid var(--line)}.category-bar nav{height:38px;display:flex;align-items:center;gap:26px}.category-bar a{font-size:14px;color:var(--muted);white-space:nowrap}.category-bar a:hover,.category-bar a:focus-visible,.category-bar a.is-active{color:var(--red2)}main{min-height:60vh}.page{padding:32px 0 54px}.page-header{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:28px;align-items:end;padding:18px 0 28px;border-bottom:1px solid var(--line)}.eyebrow{color:var(--red2);font-weight:800;font-size:14px;letter-spacing:.06em}.page h1{font-size:30px;line-height:1.3;margin:7px 0 12px}.lead{margin:0;color:var(--muted);max-width:780px}.page-note{border-left:3px solid var(--red);padding:12px 14px;background:#101010;color:var(--soft);font-size:14px}.content-layout{display:grid;grid-template-columns:minmax(0,1fr) 310px;gap:32px;margin-top:30px}.article{min-width:0}.article section{margin-bottom:34px}.article h2{font-size:23px;line-height:1.35;margin:0 0 14px}.article h3{font-size:18px;line-height:1.4;margin:18px 0 8px}.article p{margin:0 0 14px;color:var(--text)}.side{min-width:0}.side-card{background:var(--card);border:1px solid var(--line);border-radius:8px;padding:18px;margin-bottom:16px}.side-card h2,.side-card h3{font-size:17px;margin:0 0 10px}.side-card p,.side-card li{font-size:14px;color:var(--muted)}.side-card a{display:block;padding:8px 0;border-bottom:1px solid var(--line)}.side-card a:last-child{border-bottom:0}.side-card a:hover{color:var(--red2)}.info-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.info-card{background:var(--card);border:1px solid var(--line);border-radius:8px;padding:18px}.info-card:hover{background:var(--hover)}.info-card h3{margin-top:0}.status{display:inline-block;border:1px solid var(--redline);border-radius:999px;padding:2px 8px;color:#fff;font-size:12px}.line-list{display:grid;gap:0;border-top:1px solid var(--line)}.line-item{display:grid;grid-template-columns:110px 1fr;gap:16px;padding:16px 0;border-bottom:1px solid var(--line)}.line-item strong{color:var(--red2)}.timeline{position:relative;margin-left:8px;padding-left:26px}.timeline:before{content:"";position:absolute;left:4px;top:8px;bottom:8px;width:2px;background:var(--redline)}.timeline .node{position:relative;padding:0 0 20px}.timeline .node:before{content:"";position:absolute;left:-27px;top:8px;width:10px;height:10px;border-radius:50%;background:var(--red)}.timeline h3{margin:0 0 6px}.rank-list{counter-reset:rank;display:grid;gap:10px}.rank-item{counter-increment:rank;display:grid;grid-template-columns:36px 1fr;gap:12px;background:var(--card);padding:14px;border-radius:7px}.rank-item:before{content:counter(rank,decimal-leading-zero);color:var(--red2);font-weight:900}.compare{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}.compare>div{border-top:2px solid var(--red);background:var(--card);padding:18px}.checklist{display:grid;gap:12px}.check{padding:14px 16px;border:1px solid var(--line);border-left:3px solid var(--red);background:#111}.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin:12px 0}.tag-row span{font-size:13px;color:var(--muted);border:1px solid var(--line);padding:4px 8px;border-radius:999px}.media-block{display:grid;grid-template-columns:minmax(0,38%) 1fr;gap:20px;align-items:center;background:var(--card);padding:18px;border-radius:8px}.media-block img,.hero-media img{display:block;width:100%;height:auto;max-width:100%;object-fit:contain;object-position:center}.media-block img{max-height:180px}.app-media img{max-height:420px}.hero-media img{max-height:240px}.hero-home{padding:24px 0 12px}.tipbar{border-left:4px solid var(--red);background:#0f0f0f;padding:10px 14px;margin-bottom:18px}.tipbar a{color:var(--muted)}.home-hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:24px;align-items:center;background:var(--panel);border:1px solid var(--line);padding:22px;border-radius:9px;min-height:240px}.home-hero-grid h1{font-size:31px;margin:4px 0 12px}.actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}.btn{display:inline-flex;align-items:center;justify-content:center;min-height:44px;border-radius:7px;padding:0 16px;font-weight:800}.btn-primary{background:var(--red);color:#fff}.btn-secondary{border:1px solid var(--redline);background:#0c0c0c}.home-section{padding:28px 0;border-bottom:1px solid var(--line)}.section-head{display:flex;justify-content:space-between;align-items:end;gap:20px;margin-bottom:16px}.section-head h2{margin:0;font-size:23px}.section-head a{font-size:14px;color:var(--red2)}.today-grid{display:grid;grid-template-columns:65fr 35fr;gap:18px}.stack{display:grid;gap:12px}.home-line{padding:14px 0;border-bottom:1px solid var(--line)}.home-line:first-child{padding-top:0}.home-line h3{margin:4px 0 5px;font-size:18px}.home-line p{margin:0;color:var(--muted)}.dual{display:grid;grid-template-columns:1fr 1fr;gap:18px}.method-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.mini-index{margin-top:16px;display:grid;grid-template-columns:repeat(4,1fr);gap:10px}.mini-index a{background:#111;border:1px solid var(--line);padding:12px;border-radius:6px}.notice-box{border:1px solid var(--redline);padding:18px;border-radius:8px}.faq-list{display:grid;gap:12px}.faq-item{background:var(--card);border:1px solid var(--line);border-radius:8px;padding:18px}.faq-item h2{font-size:18px;margin:0 0 8px}.faq-item p{margin:0;color:var(--muted)}.overlay{position:fixed;inset:0;background:rgba(0,0,0,.72);opacity:0;pointer-events:none;transition:.2s;z-index:80}.overlay.is-open{opacity:1;pointer-events:auto}.drawer,.search-panel{position:fixed;right:0;top:0;bottom:0;width:min(390px,calc(100vw - 24px));background:#0d0d0d;border-left:1px solid var(--redline);transform:translateX(105%);transition:.22s;z-index:90;overflow:auto;box-shadow:var(--shadow)}.drawer.is-open,.search-panel.is-open{transform:translateX(0)}.search-panel{width:min(420px,calc(100vw - 24px))}.panel-head{position:sticky;top:0;z-index:2;display:flex;align-items:center;justify-content:space-between;padding:16px 18px;background:#0a0a0a;border-bottom:1px solid var(--line)}.panel-head strong{display:block}.panel-head small{display:block;color:var(--soft);margin-top:2px}.close-btn{width:44px;height:44px;border:1px solid var(--line);background:#111;color:#fff;border-radius:7px;font-size:25px;cursor:pointer}.drawer-groups{padding:8px 18px 28px}.drawer-groups section{padding:12px 0;border-bottom:1px solid var(--line)}.drawer-groups h2{font-size:15px;color:var(--red2);margin:0 0 6px}.drawer-groups a{display:block;padding:9px 4px}.drawer-groups b,.drawer-groups span{display:block}.drawer-groups span{font-size:13px;color:var(--soft)}.search-label{display:block;padding:18px 18px 6px;color:var(--soft);font-size:14px}.search-panel input{display:block;width:calc(100% - 36px);margin:0 18px 14px;min-height:46px;border:1px solid var(--line);background:#111;color:#fff;border-radius:7px;padding:0 12px}.search-results{padding:0 18px}.search-results a{display:block;padding:12px 0;border-bottom:1px solid var(--line)}.search-results b,.search-results span{display:block}.search-results span{font-size:13px;color:var(--soft)}.no-result{color:var(--soft)}.quick-links{display:grid;grid-template-columns:1fr 1fr;gap:8px;padding:18px}.quick-links a{border:1px solid var(--line);padding:10px;border-radius:6px}.site-footer{border-top:2px solid var(--red);background:#050505;padding:34px 0 74px}.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:28px}.site-footer h2,.site-footer h3{margin:0 0 10px}.site-footer p{color:var(--soft);margin:4px 0 10px}.site-footer a{display:block;color:var(--muted);padding:3px 0}.site-footer a:hover{color:var(--red2)}.footer-bottom{margin-top:28px;padding-top:18px;border-top:1px solid var(--line);color:var(--soft);font-size:14px}.mobile-bottom{display:none}
@media(max-width:900px){.desktop-main{gap:14px}.nav-inner{gap:16px}.category-bar{display:none}.page-header,.content-layout{grid-template-columns:1fr}.page-note{max-width:760px}.content-layout{gap:12px}.info-grid,.method-grid{grid-template-columns:1fr 1fr}.footer-grid{grid-template-columns:1fr 1fr}.today-grid{grid-template-columns:1fr}.home-hero-grid{grid-template-columns:1.15fr .85fr}.mini-index{grid-template-columns:1fr 1fr}}
@media(max-width:720px){body{padding-bottom:58px}.shell{width:min(100% - 32px,1220px)}.brand-strip{height:22px}.main-nav,.nav-inner{height:54px}.desktop-main{display:none}.nav-inner{justify-content:space-between}.nav-tools [data-open-search]{display:none}.brand{min-width:auto}.page{padding-top:22px}.page h1,.home-hero-grid h1{font-size:28px}.page-header{padding-top:8px}.info-grid,.method-grid,.dual,.compare,.home-hero-grid{grid-template-columns:1fr}.home-hero-grid{min-height:auto}.hero-media{order:-1}.line-item{grid-template-columns:1fr;gap:4px}.media-block{grid-template-columns:1fr}.media-block img{max-height:180px}.mini-index{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr 1fr}.footer-brand{grid-column:1/-1}.mobile-bottom{position:fixed;left:0;right:0;bottom:0;height:54px;padding-bottom:env(safe-area-inset-bottom);display:grid;grid-template-columns:repeat(5,1fr);background:#050505;border-top:1px solid var(--red);z-index:60}.mobile-bottom a,.mobile-bottom button{display:flex;align-items:center;justify-content:center;color:#fff;background:transparent;border:0;min-height:44px;font-size:13px}.panel-open .mobile-bottom{z-index:70;pointer-events:none}.site-footer{padding-bottom:88px}}
@media(max-width:430px){.footer-grid{grid-template-columns:1fr}.footer-brand{grid-column:auto}.page h1,.home-hero-grid h1{font-size:27px}.article h2,.section-head h2{font-size:21px}.info-grid{grid-template-columns:1fr}}
:focus-visible{outline:2px solid var(--red2);outline-offset:3px}