:root{--bg:#0D0B10;--panel:#17131D;--panel2:#211A29;--line:#382A3D;--red:#E62B46;--red2:#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-family:system-ui,-apple-system,"Segoe UI","Microsoft YaHei",sans-serif;line-height:1.8;overflow-wrap:anywhere}a{color:inherit;text-decoration:none}a:hover{color:var(--active)}button,input{font:inherit}.wrap{width:min(var(--max),calc(100% - 48px));margin-inline:auto}.skip-link{position:absolute;left:-9999px}.skip-link:focus{left:16px;top:8px;z-index:99;background:#fff;color:#000;padding:8px 12px}.site-header{background:#100d13;border-bottom:1px solid var(--line)}.brand-row{height:68px;display:flex;align-items:center;justify-content:space-between;gap:24px}.brand{display:flex;align-items:center;gap:10px}.brand-logo{max-height:36px;width:auto}.brand span{display:flex;gap:9px;align-items:baseline}.brand strong{font-size:19px}.brand small{font-size:11px;letter-spacing:.15em;color:var(--muted)}.tools{display:flex;align-items:center;gap:20px;font-size:14px}.tool-btn,.menu-btn,.mega-close,.search-row button{border:1px solid var(--line);background:transparent;color:var(--text);border-radius:8px;padding:8px 12px;cursor:pointer}.menu-btn{display:none}.main-nav{border-top:1px solid #241b27;border-bottom:1px solid #241b27}.nav-line{height:46px;display:flex;align-items:center;gap:34px}.nav-line a{font-size:15px;position:relative}.nav-line a.active{font-weight:700}.nav-line a.active:after{content:"";position:absolute;height:2px;background:var(--red);left:0;right:0;bottom:-12px}.quick{min-height:42px;display:flex;align-items:center;gap:20px;overflow-x:auto;white-space:nowrap;font-size:14px;color:var(--muted)}.quick a:hover{color:#fff}.search-panel,.mega{padding-block:18px 22px;border-top:1px solid var(--line)}.search-panel label{display:block;font-weight:700;margin-bottom:8px}.search-row{display:flex;gap:10px}.search-row input{min-width:0;flex:1;background:var(--panel);border:1px solid var(--line);color:#fff;border-radius:8px;padding:10px 12px}.search-results{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px}.search-results a{background:var(--panel2);padding:6px 10px;border-radius:8px}.mega-close{margin-left:auto;display:block;margin-bottom:14px}.mega-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}.mega-grid h2{font-size:15px;margin:0 0 8px}.mega-grid a{display:block;color:var(--muted);padding:3px 0}.site-main{min-height:55vh}.hero,.page-head{padding:64px 0 30px}.eyebrow{display:inline-block;color:var(--active);font-weight:700;font-size:13px;letter-spacing:.08em;margin-bottom:8px}.hero h1,.page-head h1{font-size:clamp(30px,4vw,42px);line-height:1.22;margin:0 0 18px;max-width:900px}.page-head h1{font-size:clamp(28px,3.4vw,34px)}.lead{font-size:17px;color:var(--muted);max-width:780px;margin:0}.breadcrumb{font-size:13px;color:#b9acbd;margin-bottom:12px}.actions{display:flex;gap:12px;margin-top:24px;flex-wrap:wrap}.btn{display:inline-flex;align-items:center;justify-content:center;background:var(--red);padding:9px 15px;border-radius:9px;font-weight:700}.btn.alt{background:transparent;border:1px solid var(--line)}.section{padding:48px 0}.section h2{font-size:25px;line-height:1.35;margin:0 0 16px}.section h3{font-size:19px;line-height:1.45;margin:0 0 8px}.section p{margin:0 0 14px}.section-intro{max-width:760px;color:var(--muted);margin-bottom:22px}.grid-2,.grid-3,.split{display:grid;gap:22px}.grid-2,.split{grid-template-columns:repeat(2,minmax(0,1fr))}.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}.card{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:22px}.card p{color:var(--muted)}.feature{background:linear-gradient(110deg,#17131D,#1c1421);border:1px solid var(--line);border-radius:14px;padding:28px}.feature-row{display:grid;grid-template-columns:1.35fr .65fr;gap:22px}.stack{display:grid;gap:14px}.index-list{border-top:1px solid var(--line)}.index-row{display:grid;grid-template-columns:64px 1fr auto;gap:16px;align-items:start;padding:18px 0;border-bottom:1px solid var(--line)}.index-no{font-weight:800;color:var(--active)}.index-row p{color:var(--muted);margin:3px 0}.index-row a{font-weight:700;color:#fff}.media-frame{display:flex;align-items:center;justify-content:center;background:#120f16;border:1px solid #2e2532;border-radius:12px;padding:10px;margin:18px 0}.media-img{display:block;max-width:100%;height:auto;max-height:220px;object-fit:contain;object-position:center}.hero-img{max-height:300px}.portrait-img{max-height:360px;width:auto}.app-img{max-height:400px;width:auto}.timeline{border-left:2px solid var(--line);padding-left:22px;display:grid;gap:26px}.timeline article{position:relative}.timeline article:before{content:"";position:absolute;width:10px;height:10px;border-radius:50%;background:var(--red);left:-28px;top:9px}.quote{border-left:3px solid var(--purple);background:var(--panel);padding:18px 20px;margin:18px 0;color:#eee}.notice{border:1px solid #573642;background:#1b1217;border-radius:10px;padding:16px 18px}.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;counter-reset:step}.flow div{background:var(--panel);border:1px solid var(--line);padding:18px;border-radius:10px}.flow div:before{counter-increment:step;content:counter(step);display:inline-grid;place-items:center;width:28px;height:28px;border-radius:50%;background:var(--red);font-weight:800;margin-bottom:10px}.table-wrap{overflow-x:auto}.info-table{width:100%;border-collapse:collapse;min-width:620px}.info-table th,.info-table td{border-bottom:1px solid var(--line);padding:12px;text-align:left;vertical-align:top}.info-table th{color:#fff}.info-table td{color:var(--muted)}.article{max-width:780px;margin-inline:auto}.article h2{margin-top:42px}.article p{color:#e8e1eb}.related{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}.related a{border:1px solid var(--line);border-radius:8px;padding:7px 10px}.faq details{border-bottom:1px solid var(--line);padding:16px 0}.faq summary{font-weight:700;cursor:pointer}.faq p{color:var(--muted);margin-top:10px}.site-footer{border-top:1px solid var(--line);margin-top:48px;padding:36px 0 100px;background:#0f0c12}.footer-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:28px}.footer-grid h2{font-size:15px}.footer-grid a{display:block;color:var(--muted);font-size:14px;padding:3px 0}.footer-base{border-top:1px solid var(--line);margin-top:28px;padding-top:18px;color:#a99eac;font-size:13px}.footer-base p{margin:3px 0}.bottom-nav{display:none}.noscript-nav{display:flex;gap:14px;flex-wrap:wrap;padding:10px 0;color:var(--muted)}:focus-visible{outline:3px solid #ff8ba0;outline-offset:2px}
@media(max-width:900px){.grid-3{grid-template-columns:repeat(2,1fr)}.feature-row{grid-template-columns:1fr}.mega-grid{grid-template-columns:repeat(3,1fr)}}
@media(max-width:768px){.wrap{width:min(100% - 32px,var(--max))}.brand-row{height:60px}.brand-logo{max-height:32px}.brand span small{display:none}.tools>a{display:none}.menu-btn{display:inline-block}.tools{gap:8px}.tool-btn,.menu-btn{min-height:44px}.main-nav{display:none}.quick{min-height:44px;gap:16px}.mega-grid{grid-template-columns:repeat(2,1fr)}.hero,.page-head{padding:38px 0 20px}.hero h1,.page-head h1{font-size:27px}.lead{font-size:16px}.section{padding:34px 0}.section h2{font-size:21px}.grid-2,.grid-3,.split{grid-template-columns:1fr}.flow{grid-template-columns:repeat(2,1fr)}.card{padding:18px}.media-img{max-height:180px}.hero-img{max-height:220px}.portrait-img{max-height:320px}.app-img{max-height:320px}.footer-grid{grid-template-columns:repeat(2,1fr)}.bottom-nav{position:fixed;z-index:40;left:0;right:0;bottom:0;display:grid;grid-template-columns:repeat(4,1fr);height:calc(56px + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom);background:#130f16;border-top:1px solid var(--line)}.bottom-nav a{display:flex;flex-direction:column;align-items:center;justify-content:center;font-size:13px;line-height:1.2;gap:3px}.bottom-nav span{font-size:11px}.site-footer{padding-bottom:90px}.index-row{grid-template-columns:48px 1fr}.index-row>a{grid-column:2}.search-row{align-items:stretch}}
@media(max-width:360px){.wrap{width:calc(100% - 28px)}.mega-grid{grid-template-columns:1fr}.flow{grid-template-columns:1fr}.tools{gap:4px}.tool-btn,.menu-btn{padding:7px 8px;font-size:13px}.footer-grid{grid-template-columns:1fr}}