:root{color-scheme:dark;--bg:#08080B;--deep:#050508;--panel:#111116;--panel2:#19191F;--card:#17171E;--fg:#F5F5F7;--muted:#B9BBC5;--red:#E32B39;--hot:#FF4252;--border:rgba(255,255,255,.10);font-family:-apple-system,BlinkMacSystemFont,"Microsoft YaHei","PingFang SC",sans-serif}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--fg);font-size:16px;line-height:1.7;overflow-x:hidden}a{color:inherit;text-decoration:none}a:hover{color:#fff}button,input{font:inherit}button{cursor:pointer}button,a{outline-offset:3px}button:focus-visible,a:focus-visible,input:focus-visible{outline:2px solid #FF4252}h1,h2,h3,p{margin:0 0 14px}h1{font-size:clamp(28px,3vw,32px);line-height:1.27;color:#fff}h2{line-height:1.3;color:#fff}h3{color:#fff}p{color:#E3E3E8}img{display:block;max-width:100%;height:auto;object-fit:contain;object-position:center}.wrap{width:min(1120px,calc(100% - 32px));margin-inline:auto}.site-header{background:var(--deep);border-bottom:1px solid rgba(255,66,82,.35);position:sticky;top:0;z-index:40}.topbar{min-height:66px;display:flex;align-items:center;gap:20px}.brand{display:flex;align-items:center;gap:9px;white-space:nowrap;flex-shrink:0}.logo{max-height:26px;width:auto;max-width:110px;object-fit:contain}.brand-name{font-size:18px;font-weight:800;color:#fff}.brand small,.foot-brand small{font-size:9px;letter-spacing:1.4px;color:#d7b4bc}.primary{display:flex;align-items:center;gap:3px;flex:1;justify-content:center}.primary a,.head-action,.desktop-app{padding:8px 11px;font-size:14px;border-radius:9px;white-space:nowrap}.primary a:hover,.primary a[aria-current=page]{background:#951A28;color:white}.header-actions{display:flex;align-items:center;gap:6px}.head-action{border:1px solid rgba(255,66,82,.36);background:#19191F;color:#fff}.head-action:hover,.desktop-app:hover{box-shadow:0 0 14px rgba(255,66,82,.2)}.desktop-app{border:1px solid rgba(255,66,82,.36)}.mobile-menu-label{display:none}.category-bar{background:#111116;border-bottom:1px solid var(--border)}.category-inner{display:flex;justify-content:space-between;gap:15px}.category-inner a{padding:9px 13px;font-size:13px;color:#d5d5df;border-bottom:2px solid transparent}.category-inner a:hover,.category-inner a.current{color:white;background:rgba(149,26,40,.24);border-bottom-color:var(--hot)}.page-main{padding-top:29px;padding-bottom:80px;min-height:65vh}.breadcrumbs{display:flex;gap:11px;align-items:center;font-size:13px;color:var(--muted);margin:2px 0 24px;flex-wrap:wrap}.breadcrumbs a:hover{color:var(--hot)}.eyebrow{font-size:12px;letter-spacing:2px;color:#ff7b85;font-weight:750;text-transform:uppercase}.article-head{max-width:800px;margin-bottom:28px}.article-deck{font-size:18px;line-height:1.8;color:#e3e3e8}.page-image,.media-slot,.feature-image{background:linear-gradient(145deg,#17171E,#101014);border:1px solid var(--border);border-radius:12px;display:flex;justify-content:center;align-items:center}.page-image{margin-bottom:28px;min-height:72px}.article-image{max-height:205px;width:auto;max-width:100%;margin:auto}.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 240px;gap:36px}.article-body{min-width:0}.reading-section{position:relative;border-bottom:1px solid var(--border);padding:6px 0 27px;margin-bottom:25px}.reading-section h2{font-size:22px;margin-bottom:14px}.reading-section p{font-size:16px;line-height:1.9;max-width:770px}.section-index{font-size:13px;letter-spacing:2px;color:#ff6370;font-weight:700}.article-aside{align-self:start;border:1px solid var(--border);background:var(--panel);border-radius:12px;padding:20px;position:sticky;top:105px}.article-aside h2{font-size:18px}.article-aside a{display:block;padding:13px 0;border-top:1px solid var(--border)}.article-aside strong{display:block}.article-aside small{display:block;color:var(--muted);margin-top:4px}.article-aside a:hover strong{color:var(--hot)}.page-feature{display:grid;grid-template-columns:1fr 1fr;align-items:center;gap:28px;border:1px solid var(--border);background:var(--panel);padding:23px;border-radius:12px;margin-bottom:30px}.app-picture{max-height:420px;width:auto;margin:auto}.hero{display:grid;grid-template-columns:3fr 2fr;gap:27px;padding:24px 0 40px;align-items:stretch}.hero-intro{padding:27px 8px 18px 0}.hero-intro h1{font-size:clamp(29px,3.1vw,38px);max-width:600px;margin:14px 0 20px}.hero-intro>p:not(.eyebrow){font-size:17px;line-height:1.9}.hero-side{background:var(--panel);border:1px solid var(--border);border-radius:12px;padding:18px;min-width:0}.hero-image{display:flex;align-items:center;justify-content:center;min-height:110px;background:#08080B;border-radius:10px}.cover-picture{max-height:250px;width:auto}.hero-side h2{font-size:20px;margin-top:17px}.hero-side p{font-size:14px}.text-link,.card>a,.split-feature a,.timeline-card>a,.editor-note>a{color:#ff6672;font-weight:700}.text-link:hover,.card>a:hover,.split-feature a:hover{color:white}.button-row{display:flex;gap:11px;flex-wrap:wrap;margin-top:23px}.btn{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:9px 20px;border-radius:9px;font-size:14px;font-weight:700}.btn-primary{background:linear-gradient(135deg,#FF4252,#E32B39,#951A28);color:white}.btn-secondary{border:1px solid var(--hot);background:#17171E;color:white}.btn:hover{filter:brightness(1.12)}.home-section{padding:37px 0;border-top:1px solid var(--border)}.section-heading{display:flex;justify-content:space-between;align-items:end;gap:22px;margin-bottom:23px}.section-heading h2{font-size:25px}.section-heading>p{max-width:410px;font-size:14px;color:var(--muted)}.focus-grid{display:grid;grid-template-columns:1.45fr 1fr 1fr;gap:15px}.card{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:17px;box-shadow:0 14px 36px rgba(0,0,0,.17)}.card h3{font-size:19px;margin:13px 0 9px}.card p{font-size:14px;line-height:1.85}.card>a{font-size:14px}.media-slot{min-height:84px;padding:10px}.media-slot img{max-height:175px;width:auto;margin:auto}.three-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.split-feature{display:grid;grid-template-columns:1fr 1.3fr;gap:24px;align-items:center;background:#111116;border:1px solid var(--border);border-radius:12px;padding:19px;margin-bottom:16px}.split-feature.reverse{grid-template-columns:1.3fr 1fr}.split-feature.reverse>.media-slot{order:2}.split-feature h3{font-size:23px}.split-feature p{max-width:550px}.editor-grid{display:grid;grid-template-columns:1.25fr 1fr;gap:20px}.timeline-card,.editor-note{border:1px solid var(--border);border-radius:12px;background:var(--panel);padding:20px}.editor-note{border-color:rgba(255,66,82,.34)}.timeline{border-left:2px solid #951A28;margin:18px 0;padding-left:20px}.timeline p{position:relative;font-size:14px}.timeline p:before{content:'';width:9px;height:9px;border-radius:50%;background:var(--hot);position:absolute;left:-25px;top:9px}.timeline strong{color:#fff;margin-right:8px}.explore-block,.mobile-feature{display:grid;grid-template-columns:1fr 1.4fr;gap:35px;align-items:center}.explore-block h2,.mobile-feature h2{font-size:25px}.path-links{display:grid;gap:8px;margin:20px 0}.path-links a{padding:10px 14px;background:#19191F;border-left:2px solid var(--red);border-radius:4px}.path-links a:hover{background:#2c1a20}.mobile-feature{grid-template-columns:1.4fr 1fr}.phone-media{display:flex;justify-content:center;align-items:center;min-height:150px}.tiny-icon img{width:auto;max-height:60px;margin:15px 0}.service-links>div{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.service-links a{padding:15px;background:var(--panel);border:1px solid var(--border);border-radius:10px;font-weight:700}.service-links span{display:block;font-size:13px;color:var(--muted);font-weight:400}.faq-list{max-width:920px;display:grid;gap:16px}.faq-item{background:var(--panel);border:1px solid var(--border);padding:21px;border-radius:12px}.faq-item h2{font-size:19px}.faq-item p{line-height:1.9}.site-footer{background:var(--deep);border-top:1px solid #951A28;padding:42px 0 30px}.foot-heading{display:flex;justify-content:space-between;gap:35px;padding-bottom:25px;border-bottom:1px solid var(--border)}.foot-heading>p{max-width:630px;font-size:13px;color:#e0dfe5}.foot-brand{display:flex;align-items:center;gap:8px;white-space:nowrap}.footer-grid{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:20px;padding:24px 0}.footer-grid h2{font-size:15px;margin-bottom:12px}.footer-grid a{display:block;font-size:13px;color:#c8c7cf;padding:4px 0}.footer-grid a:hover{color:#ff6672}.foot-last{border-top:1px solid var(--border);padding-top:18px;color:var(--muted);font-size:12px}.mobile-bottom{display:none}.overlay{position:fixed;inset:0;background:rgba(0,0,0,.68);z-index:60;opacity:0;visibility:hidden;pointer-events:none;transition:opacity .2s}.overlay.is-open{opacity:1;visibility:visible;pointer-events:auto}.floating-panel{position:fixed;top:66px;z-index:70;visibility:hidden;pointer-events:none;opacity:0;transform:translateY(-7px);transition:opacity .2s,transform .2s;background:#111116;border:1px solid rgba(255,66,82,.25);box-shadow:0 14px 36px rgba(0,0,0,.32)}.floating-panel.is-open{visibility:visible;pointer-events:auto;opacity:1;transform:none}.menu-panel{left:0;right:0;max-height:calc(100dvh - 66px);overflow-y:auto}.panel-inner{padding:20px 0 26px}.panel-heading{display:flex;align-items:center;justify-content:space-between;gap:14px;margin-bottom:15px}.panel-heading strong{font-size:17px}.close-panel{min-width:55px;min-height:44px;background:#19191F;border:1px solid #a43843;border-radius:9px;color:#fff}.menu-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:17px}.menu-grid section{border:1px solid var(--border);border-radius:10px;padding:15px}.menu-grid h2{font-size:16px}.menu-grid p{font-size:13px;color:var(--muted)}.menu-links{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:6px}.menu-links a{min-height:44px;display:flex;align-items:center;padding:6px 10px;border-radius:6px;background:#19191F;font-size:14px}.menu-links a:hover{background:#951A28}.search-panel{right:max(16px,calc((100vw - 1120px)/2));width:min(460px,calc(100vw - 32px));max-height:calc(100dvh - 78px);overflow-y:auto;border-radius:0 0 12px 12px}.search-inner{padding:20px}.search-inner label{display:block;font-size:13px;color:var(--muted);margin-bottom:6px}#site-search{width:100%;min-height:46px;color:#fff;background:#19191F;border:1px solid rgba(255,66,82,.4);border-radius:8px;padding:10px 12px}#search-results h3{font-size:14px;margin:14px 0 8px}#search-results .search-results-group{display:flex;gap:7px;flex-wrap:wrap}.search-results-group a{font-size:13px;border:1px solid var(--border);border-radius:7px;padding:7px 10px;background:#19191F}#no-results{font-size:13px;color:var(--muted)}.lock-scroll{overflow:hidden}
@media(max-width:1050px){.primary{display:none}.category-bar{display:none}.desktop-app,.desktop-menu-label{display:none}.mobile-menu-label{display:inline}.topbar{justify-content:space-between;min-height:56px}.floating-panel{top:56px}.menu-panel{max-height:calc(100dvh - 56px)}.site-header{position:sticky}.footer-grid{grid-template-columns:repeat(3,1fr)}}
@media(max-width:760px){.page-main{padding-top:20px;padding-bottom:75px}.hero,.article-layout,.three-grid,.editor-grid,.explore-block,.mobile-feature,.page-feature{grid-template-columns:1fr}.hero{padding:6px 0 24px}.hero-intro{padding:12px 0}.hero-side{min-height:0}.focus-grid{grid-template-columns:1fr 1fr}.focus-main{grid-column:span 2}.section-heading{align-items:start;flex-direction:column;gap:0}.split-feature,.split-feature.reverse{grid-template-columns:1fr}.split-feature.reverse>.media-slot{order:0}.article-aside{position:static}.footer-grid{grid-template-columns:repeat(2,1fr)}.foot-heading{display:block}.foot-brand{margin-bottom:13px}.service-links>div{grid-template-columns:1fr}.menu-grid{grid-template-columns:1fr}.menu-links{grid-template-columns:repeat(2,minmax(0,1fr))}.mobile-bottom{display:grid;position:fixed;z-index:45;bottom:0;left:0;right:0;grid-template-columns:repeat(5,minmax(0,1fr));padding-bottom:env(safe-area-inset-bottom);background:#050508;border-top:1px solid #951A28}.mobile-bottom a{display:flex;align-items:center;justify-content:center;min-height:54px;font-size:13px}.mobile-bottom a[aria-current=page]{background:#52171f;color:#fff}.site-footer{padding-bottom:calc(94px + env(safe-area-inset-bottom))}.article-head{margin-bottom:20px}.reading-section h2{font-size:20px}}
@media(max-width:420px){.brand small{font-size:8px;letter-spacing:.4px}.brand-name{font-size:16px}.brand{gap:5px}.topbar{gap:5px}.header-actions{gap:4px}.head-action{padding:9px 8px;min-height:44px}.focus-grid{grid-template-columns:1fr}.focus-main{grid-column:auto}.wrap{width:calc(100% - 32px)}.footer-grid{gap:9px}.menu-links{grid-template-columns:1fr 1fr}.hero-intro h1{font-size:29px}}