:root{--bg:#0D0B10;--panel:#17131D;--panel2:#211A29;--line:#382A3D;--red:#E62B46;--red2:#A91935;--purple:#7650A4;--text:#F6F2F8;--muted:#D7CCDD;--active:#FF5570}
*{box-sizing:border-box}html{background:var(--bg);color:var(--text);font-family:Arial,"Microsoft YaHei",sans-serif}body{margin:0;background:var(--bg);line-height:1.78;overflow-x:hidden}
a{color:inherit;text-decoration:none}a:hover{color:var(--active)}button,input{font:inherit}.wrap{width:min(1180px,calc(100% - 48px));margin:auto}
.site-header{border-bottom:1px solid var(--line);background:#100d14}.brand-row{min-height:68px;display:flex;align-items:center;justify-content:space-between;gap:24px}.brand{display:flex;align-items:center;gap:12px;font-weight:800;letter-spacing:.08em}.brand-logo{display:block;max-height:36px;max-width:160px;width:auto;height:auto;object-fit:contain}.tools{display:flex;align-items:center;gap:14px}.tools a,.tools button{background:none;border:0;color:var(--muted);padding:10px 8px;cursor:pointer}.tools a:focus,.tools button:focus,a:focus{outline:2px solid var(--active);outline-offset:2px}
.main-nav{display:flex;gap:28px;align-items:center;height:45px;border-top:1px solid #1d1722}.main-nav a{font-size:15px;font-weight:700}.mega{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;padding-top:16px;padding-bottom:18px;border-top:1px solid #1d1722}.mega section{min-width:0}.mega h2{font-size:14px;color:#fff;margin:0 0 6px}.mega section>div{display:flex;flex-wrap:wrap;gap:6px 12px}.mega a{font-size:13px;color:var(--muted)}.mobile-only{display:none!important}
.search-panel{padding:16px 0}.search-panel label{display:block;font-weight:700;margin-bottom:6px}.search-panel input{width:100%;max-width:520px;background:var(--panel);border:1px solid var(--line);color:#fff;border-radius:8px;padding:11px 12px}.search-results{display:flex;flex-wrap:wrap;gap:10px;margin-top:10px}.search-results a{border:1px solid var(--line);padding:5px 9px;border-radius:8px}
main{padding-top:32px;padding-bottom:72px}.breadcrumb{font-size:13px;color:var(--muted);margin-bottom:14px}.eyebrow{color:var(--active);font-size:13px;font-weight:700;letter-spacing:.08em}.hero{display:grid;grid-template-columns:1.35fr .65fr;gap:32px;align-items:center;padding:38px 0 52px}.hero h1,.page-head h1{font-size:34px;line-height:1.25;margin:8px 0 16px}.hero p,.page-head p{color:var(--muted);font-size:17px}.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:20px}.btn{display:inline-block;background:var(--red);color:#fff;padding:10px 16px;border-radius:9px;font-weight:700}.btn.secondary{background:transparent;border:1px solid var(--line)}
.content-image{max-width:100%;height:auto;max-height:220px;object-fit:contain;object-position:center;display:block;margin:auto}.banner-image{max-width:100%;width:100%;height:auto;max-height:300px;object-fit:contain;display:block;margin:auto}.portrait-image{max-width:100%;height:auto;max-height:360px;object-fit:contain;display:block;margin:auto}.app-image{max-width:100%;height:auto;max-height:400px;object-fit:contain;display:block;margin:auto}.icon-image{width:auto;height:auto;max-width:72px;max-height:72px;object-fit:contain}
.section{padding:48px 0;border-top:1px solid #1e1824}.section h2{font-size:25px;margin:0 0 18px}.section h3{font-size:19px;margin:0 0 8px}.muted{color:var(--muted)}.grid-3{display:grid;grid-template-columns:1.25fr .85fr .85fr;gap:20px}.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}.card{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:22px;min-width:0}.card p{color:var(--muted);margin:8px 0 0}.card .num{color:var(--active);font-weight:800}.feature-list{display:grid;gap:14px}.feature-row{display:grid;grid-template-columns:44px 1fr auto;gap:14px;align-items:start;padding:15px 0;border-bottom:1px solid var(--line)}.feature-row:last-child{border-bottom:0}
.page-head{max-width:780px;padding:12px 0 32px}.article{max-width:780px;margin:0 auto}.article section{padding:28px 0;border-top:1px solid var(--line)}.article h2{font-size:24px}.article p{margin:9px 0;color:var(--text)}.aside-note{border-left:3px solid var(--purple);padding:12px 16px;background:var(--panel2);color:var(--muted)}.toc{display:flex;gap:10px;flex-wrap:wrap;margin:12px 0 28px}.toc a{border:1px solid var(--line);padding:6px 10px;border-radius:8px;color:var(--muted)}
.site-footer{border-top:1px solid var(--line);background:#100d14;padding:34px 0 90px}.footer-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}.footer-grid h2{font-size:15px}.footer-grid a{display:block;color:var(--muted);font-size:14px;margin:4px 0}.footnote{color:#a99db1;font-size:13px;margin-top:26px}.bottom-nav{display:none}
@media(max-width:768px){
 .wrap{width:min(100% - 32px,1180px)}.brand-row{min-height:60px;gap:10px}.brand-logo{max-height:32px;max-width:120px}.brand span{font-size:13px}.tools>a:first-child,.tools>a:nth-child(3){display:none}.tools{gap:2px}.mobile-only{display:inline-block!important;min-width:44px;min-height:44px}.tools button{min-width:44px;min-height:44px;padding:8px}.main-nav{display:none}.mega{display:none;grid-template-columns:repeat(2,1fr)}.mega.open{display:grid}.mega section>div{display:grid;grid-template-columns:repeat(2,minmax(0,1fr))}
 main{padding-top:20px;padding-bottom:86px}.hero{grid-template-columns:1fr;gap:20px;padding:26px 0 36px}.hero h1,.page-head h1{font-size:27px}.hero p,.page-head p{font-size:16px}.grid-3,.grid-2{grid-template-columns:1fr}.section{padding:34px 0}.section h2,.article h2{font-size:21px}.content-image{max-height:180px}.banner-image{max-height:220px}.portrait-image{max-height:320px}.app-image{max-height:320px}.footer-grid{grid-template-columns:repeat(2,1fr)}.bottom-nav{position:fixed;bottom:0;left:0;right: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:#151019;border-top:1px solid var(--line);z-index:10}.bottom-nav a{display:grid;place-items:center;font-size:13px}.site-footer{padding-bottom:90px}
}
@media(max-width:360px){.wrap{width:min(100% - 28px,1180px)}.mega{grid-template-columns:1fr}.mega section>div{grid-template-columns:1fr}.brand span{display:none}.feature-row{grid-template-columns:34px 1fr}.feature-row>a{grid-column:2}}