:root{--bg:#0D0B10;--panel:#17131D;--soft:#211A29;--line:#382A3D;--red:#E62B46;--darkred:#A91935;--purple:#7650A4;--text:#F6F2F8;--muted:#D7CCDD;--active:#FF5570;--max:1180px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font:16px/1.8 system-ui,-apple-system,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;overflow-x:hidden}a{color:var(--text);text-decoration:none}a:hover{color:var(--active)}button,input{font:inherit}.wrap{width:min(var(--max),calc(100% - 56px));margin-inline:auto}.skip-link{position:absolute;left:-9999px}.skip-link:focus{left:16px;top:10px;z-index:20;background:#fff;color:#000;padding:8px 12px}.site-header{border-bottom:1px solid var(--line);background:#110E14}.brand-row{height:68px;display:flex;align-items:center;justify-content:space-between;gap:20px}.brand{display:flex;align-items:center;gap:12px;font-weight:800;letter-spacing:.08em}.brand-logo{max-height:36px;width:auto;object-fit:contain}.brand-word{white-space:nowrap}.desktop-tools,.mobile-tools{display:flex;align-items:center;gap:22px;font-size:14px}.mobile-tools{display:none}.plain-btn{border:0;background:none;color:var(--text);padding:10px 4px;cursor:pointer}.plain-btn:focus-visible,a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--active);outline-offset:3px}.main-nav{border-top:1px solid #231A28;border-bottom:1px solid var(--line)}.nav-scroll{display:flex;gap:30px;height:48px;align-items:center}.main-nav a{font-size:15px;color:var(--muted);position:relative}.main-nav a.active{color:#fff;font-weight:700}.main-nav a.active:after{content:"";position:absolute;left:0;right:0;bottom:-13px;margin:auto;width:22px;height:2px;background:var(--red)}.quick-nav{background:#151119}.quick-scroll{display:flex;gap:20px;align-items:center;min-height:42px;overflow-x:auto;scrollbar-width:none}.quick-scroll a{white-space:nowrap;font-size:14px;color:#ded4e3}.section-panel{padding:24px 0 30px;display:none}.section-panel.open,.section-panel:target{display:block}.section-panel .section-head{display:none}.section-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}.section-group{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:16px}.section-group h2{font-size:15px;margin:0 0 8px}.section-links{display:grid;grid-template-columns:1fr 1fr;gap:7px 12px}.section-links a{color:var(--muted);font-size:14px}.search-panel{padding:18px 0 22px}.search-panel label{display:block;font-weight:700;margin-bottom:8px}.search-line{display:flex;gap:10px}.search-line input{flex:1;min-width:0;background:var(--panel);color:#fff;border:1px solid var(--line);padding:11px 12px;border-radius:9px}.search-line button,.section-head button{background:var(--soft);color:#fff;border:1px solid var(--line);border-radius:9px;padding:10px 14px}.search-results{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}.search-results a{background:var(--soft);border:1px solid var(--line);border-radius:999px;padding:5px 11px;font-size:14px}.site-main{padding-bottom:20px}.hero,.page-hero{padding:56px 0 18px}.eyebrow{color:var(--active);font-size:13px;letter-spacing:.12em}.hero h1,.page-hero h1{font-size:clamp(28px,4vw,34px);line-height:1.25;margin:8px 0 16px}.hero p,.page-lead{max-width:780px;color:var(--muted);margin:0}.actions{display:flex;gap:12px;margin-top:22px;flex-wrap:wrap}.btn{display:inline-flex;align-items:center;justify-content:center;background:var(--red);border-radius:9px;padding:10px 15px;font-weight:700}.btn.ghost{background:transparent;border:1px solid var(--line)}.breadcrumb{font-size:14px;color:var(--muted);margin-bottom:8px}.breadcrumb a{color:var(--muted)}.section{padding:46px 0}.section h2{font-size:25px;line-height:1.35;margin:0 0 18px}.section h3{font-size:19px;line-height:1.45;margin:0 0 10px}.section p{margin:0 0 14px}.muted{color:var(--muted)}.card{background:var(--panel);border:1px solid var(--line);border-radius:13px;padding:22px}.card.soft{background:var(--soft)}.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:20px}.grid-feature{display:grid;grid-template-columns:1.4fr .8fr .8fr;gap:20px}.media-row{display:grid;grid-template-columns:minmax(0,1fr) minmax(260px,.75fr);gap:28px;align-items:center}.media-row.reverse{grid-template-columns:minmax(260px,.75fr) minmax(0,1fr)}.media-box{text-align:center;background:#130f17;border:1px solid var(--line);border-radius:13px;padding:14px}.content-image{display:block;max-width:100%;height:auto;max-height:220px;object-fit:contain;object-position:center;margin:auto}.banner-image{display:block;max-width:100%;height:auto;max-height:280px;object-fit:contain;margin:auto}.portrait-image{display:block;max-width:100%;height:auto;max-height:360px;object-fit:contain;margin:auto}.app-image{display:block;max-width:100%;height:auto;max-height:400px;object-fit:contain;margin:auto}.icon-image{display:block;width:auto;height:auto;max-width:72px;max-height:72px;object-fit:contain}.article{max-width:780px}.article h2{margin-top:38px}.article blockquote{margin:24px 0;padding:14px 18px;border-left:3px solid var(--red);background:var(--panel);color:#eee}.index-list{border-top:1px solid var(--line)}.index-row{display:grid;grid-template-columns:50px 1fr auto;gap:16px;align-items:start;padding:17px 0;border-bottom:1px solid var(--line)}.index-row .num{color:var(--active);font-weight:800}.timeline{position:relative;margin-left:10px}.timeline:before{content:"";position:absolute;left:9px;top:0;bottom:0;width:1px;background:var(--line)}.timeline-item{position:relative;padding:0 0 28px 38px}.timeline-item:before{content:"";position:absolute;left:3px;top:7px;width:13px;height:13px;border-radius:50%;background:var(--red);border:3px solid var(--bg)}.steps{counter-reset:step}.step{counter-increment:step;display:grid;grid-template-columns:48px 1fr;gap:16px;padding:20px 0;border-bottom:1px solid var(--line)}.step:before{content:counter(step,decimal-leading-zero);color:var(--active);font-weight:800}.table-wrap{overflow-x:auto}.info-table{width:100%;border-collapse:collapse}.info-table th,.info-table td{text-align:left;border-bottom:1px solid var(--line);padding:12px 10px;vertical-align:top}.info-table th{color:#fff}.info-table td{color:var(--muted)}.pill-list{display:flex;flex-wrap:wrap;gap:8px}.pill-list a{border:1px solid var(--line);border-radius:999px;padding:6px 11px}.related{padding:26px 0 54px}.related .links{display:flex;flex-wrap:wrap;gap:10px}.related a{background:var(--soft);border:1px solid var(--line);border-radius:9px;padding:8px 12px}.faq-item{border-bottom:1px solid var(--line);padding:20px 0}.faq-item h2{font-size:19px;margin:0 0 8px}.site-footer{margin-top:20px;border-top:1px solid var(--line);background:#0a080c;padding:42px 0 90px}.footer-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:26px}.footer-grid h2{font-size:15px;margin:0 0 9px}.footer-grid a{display:block;color:var(--muted);font-size:14px;padding:3px 0}.footer-bottom{border-top:1px solid var(--line);margin-top:28px;padding-top:18px;color:#bcaec4;font-size:13px;display:flex;justify-content:space-between;gap:20px}.footer-bottom p{margin:0;max-width:760px}.footer-bottom a{margin-left:14px}.mobile-bottom{display:none}.center{text-align:center}.narrow{max-width:860px;margin-inline:auto}.tag{display:inline-block;color:var(--active);border:1px solid #5a2635;padding:3px 8px;border-radius:999px;font-size:12px}.note-box{background:#211725;border-left:3px solid var(--purple);padding:16px 18px;border-radius:0 10px 10px 0}.status-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.status-card{border-top:3px solid var(--purple)}@media(max-width:900px){.section-grid{grid-template-columns:repeat(2,1fr)}.grid-3,.grid-feature{grid-template-columns:1fr 1fr}.status-grid{grid-template-columns:1fr 1fr}.media-row,.media-row.reverse{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr 1fr}}@media(max-width:768px){body{font-size:15.5px;line-height:1.78;padding-bottom:calc(56px + env(safe-area-inset-bottom))}.wrap{width:min(100% - 34px,var(--max))}.brand-row{height:60px}.brand-logo{max-height:32px}.brand-word{font-size:14px}.desktop-tools{display:none}.mobile-tools{display:flex;gap:4px}.mobile-tools .plain-btn{min-width:44px;min-height:44px;padding:8px}.main-nav{display:none}.quick-scroll{min-height:42px}.section-panel{display:none;padding:16px 0 22px}.section-panel.open,.section-panel:target{display:block}.section-panel .section-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px}.section-grid{grid-template-columns:1fr 1fr;gap:12px}.section-group{padding:14px}.section-links{grid-template-columns:1fr}.hero,.page-hero{padding:38px 0 10px}.hero h1,.page-hero h1{font-size:27px}.section{padding:34px 0}.section h2{font-size:21px}.section h3{font-size:18px}.grid-2,.grid-3,.grid-feature,.status-grid{grid-template-columns:1fr}.card{padding:17px}.content-image{max-height:180px}.banner-image{max-height:220px}.portrait-image{max-height:320px}.app-image{max-height:320px}.index-row{grid-template-columns:42px 1fr}.index-row>a{grid-column:2}.footer-bottom{flex-direction:column}.mobile-bottom{position:fixed;display:grid;grid-template-columns:repeat(4,1fr);left:0;right:0;bottom:0;height:calc(56px + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom);background:#120f15;border-top:1px solid var(--line);z-index:15}.mobile-bottom a{display:flex;flex-direction:column;align-items:center;justify-content:center;font-size:13px;line-height:1.2;gap:3px}.mobile-bottom a.active{color:var(--active);font-weight:700}.site-footer{padding-bottom:30px}.footer-grid{gap:18px}}@media(max-width:360px){.wrap{width:calc(100% - 32px)}.brand-word{display:none}.section-grid{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr}.actions{flex-direction:column}.actions .btn{width:100%}}