:root{color-scheme:dark;--bg:#111318;--nav:#151820;--panel:#1A1E27;--panel2:#222733;--text:#F7F8FA;--body:#D5D8DF;--muted:#AEB4C0;--line:rgba(255,255,255,.09);--primary:#F45132;--hover:#FF684E;--gold:#D7A84B}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--body);font:16px/1.75 system-ui,"PingFang SC","Microsoft YaHei",sans-serif;overflow-x:hidden}img{max-width:100%}a{color:inherit;text-decoration:none;touch-action:manipulation}button{font:inherit;cursor:pointer;touch-action:manipulation}a,button{outline-offset:4px}a:focus-visible,button:focus-visible{outline:2px solid var(--gold)}p{margin:0 0 1em}h1,h2,h3{color:var(--text);line-height:1.3;letter-spacing:.012em;overflow-wrap:anywhere}h1{font-size:clamp(2rem,3.3vw,2.625rem);margin:0 0 18px}h2{font-size:clamp(1.44rem,2.1vw,1.75rem);margin:0 0 18px}h3{font-size:1.14rem;margin:0 0 10px}ul,ol{padding-left:1.35em}li{margin:.35em 0}.container{width:min(1200px,calc(100% - 40px));margin-inline:auto;min-width:0}.site-header{background:var(--nav);border-bottom:1px solid var(--line);position:relative;z-index:50}.head-primary{min-height:72px;display:flex;align-items:center;gap:22px}.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;color:var(--text);min-width:0}.brand-name{display:flex;flex-direction:column;line-height:1.15;white-space:nowrap}.brand-name strong{font-size:19px}.brand-name small{letter-spacing:.16em;font-size:10px;color:var(--muted);margin-top:4px}.media{position:relative;width:100%;max-width:100%;overflow:hidden;border-radius:12px;background:#12151c;aspect-ratio:16/9;min-width:0}.media>img{position:absolute;inset:0;width:100%;max-width:100%;height:100%;object-fit:contain;object-position:center center;display:block}.media-placeholder{position:absolute;inset:0;background:linear-gradient(125deg,#171b24,#252b37 55%,#171b24);border:1px solid var(--line);border-radius:inherit}.media--portrait{aspect-ratio:4/5}.media--app{aspect-ratio:3/4;max-width:360px;margin-inline:auto}.media--logo{aspect-ratio:auto;overflow:visible}.media--logo img{position:static;width:100%;height:100%;object-fit:contain}.brand-logo{width:44px;height:44px;border-radius:0;background:transparent}.brand-logo .media-placeholder{background:#252a33;border-radius:8px}.desktop-primary{display:flex;gap:7px;align-items:center;margin-left:auto;min-width:0}.desktop-primary a{font-size:14px;white-space:nowrap;padding:10px 11px;border-radius:9px;color:#D9DDE5;min-height:44px;display:inline-flex;align-items:center}.desktop-primary a.active,.desktop-primary a:hover{color:#fff;background:rgba(244,81,50,.13)}.desktop-primary a.active{box-shadow:inset 0 -2px var(--primary)}.register-button{background:var(--primary);color:#fff;font-weight:700;border-radius:9px;min-width:72px;text-align:center;min-height:42px;display:inline-flex;align-items:center;justify-content:center;flex-shrink:0}.register-button:hover{background:var(--hover)}.head-secondary{height:43px;display:flex;align-items:center;gap:32px;border-top:1px solid var(--line)}.head-secondary a{font-size:13px;color:var(--muted);white-space:nowrap;min-height:40px;display:inline-flex;align-items:center}.head-secondary a:hover,.head-secondary a[aria-current]{color:var(--text)}.site-main{padding-top:34px;padding-bottom:72px}.skip-link{position:absolute;top:-70px;left:12px;z-index:16000;background:var(--primary);padding:8px}.skip-link:focus{top:8px}.menu-toggle,.mobile-bottom,.mobile-drawer,.drawer-mask{display:none}.eyebrow{color:var(--gold);font-size:12px;font-weight:750;letter-spacing:.15em;text-transform:uppercase;display:block;margin-bottom:10px}.lead{font-size:17px;color:var(--body);max-width:830px;line-height:1.85}.page-intro{padding:30px 0 33px;border-bottom:1px solid var(--line);margin-bottom:36px}.page-intro p{max-width:900px}.section{margin:45px 0}.section-heading{display:flex;justify-content:space-between;align-items:baseline;gap:18px;margin-bottom:18px}.section-heading p{color:var(--muted)}.link-arrow,.text-link{color:#FF927F;font-weight:650;display:inline-block;min-height:40px}.link-arrow:hover,.text-link:hover{color:#fff}.panel{border:1px solid var(--line);background:var(--panel);border-radius:16px;padding:24px;min-width:0}.panel-alt{background:var(--panel2)}.panel p:last-child{margin-bottom:0}.feature-hero{display:grid;grid-template-columns:1.12fr 1fr;gap:28px;align-items:center}.feature-hero .media{border:1px solid var(--line)}.feature-hero .hero-copy{padding:10px 0}.topic-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.topic-grid article{background:var(--panel);padding:24px;border:1px solid var(--line);border-radius:14px;min-width:0}.topic-grid article:nth-child(2){border-top:3px solid var(--gold)}.topic-grid article:first-child{border-top:3px solid var(--primary)}.topic-grid article:last-child{border-top:3px solid #7994BA}.topic-grid a{display:inline-flex;min-height:40px;align-items:center;color:#FF927F;font-weight:700}.split{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:26px;align-items:start}.split.wide-left{grid-template-columns:minmax(0,1.35fr) minmax(0,.85fr)}.feature-row{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.15fr);gap:25px;align-items:center;margin:25px 0;padding:12px 0}.feature-row.reverse{grid-template-columns:minmax(0,1.15fr) minmax(0,1fr)}.feature-row.reverse .media{order:2}.feature-row p{color:var(--body)}.reading-list{list-style:none;margin:0;padding:0;border-top:1px solid var(--line)}.reading-list li{border-bottom:1px solid var(--line);margin:0}.reading-list a{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:15px 4px;min-height:52px}.reading-list a:hover{color:#FF927F}.reading-list span{color:var(--muted);font-size:13px;flex-shrink:0}.gallery{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}.gallery figure{margin:0;min-width:0}.gallery .media{margin-bottom:13px}.gallery figcaption{font-size:14px;color:var(--muted);line-height:1.75}.gallery h3{font-size:16px;margin-bottom:6px}.gallery--three{grid-template-columns:repeat(3,minmax(0,1fr))}.gallery--two{grid-template-columns:repeat(2,minmax(0,1fr))}.browse-layout{display:grid;grid-template-columns:minmax(0,1fr) 270px;gap:44px;align-items:start}.browse-layout>.main-column{min-width:0}.sidebar{background:var(--panel);border:1px solid var(--line);padding:20px;border-radius:14px;position:sticky;top:15px}.sidebar h2{font-size:18px}.sidebar a{display:block;min-height:42px;padding:6px 0;border-bottom:1px solid var(--line);color:var(--muted)}.sidebar a:hover{color:var(--text)}.article-section{margin:0 0 36px;scroll-margin-top:30px}.article-section h2{border-left:3px solid var(--primary);padding-left:14px}.article-section p{line-height:1.9}.article-section .media{margin:18px 0}.note{border-left:3px solid var(--gold);background:rgba(215,168,75,.08);padding:15px 18px;color:var(--body);border-radius:0 8px 8px 0}.related{border-top:1px solid var(--line);padding-top:28px}.related-links{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}.related-links a{display:flex;align-items:center;justify-content:space-between;min-height:54px;padding:12px 16px;border:1px solid var(--line);background:var(--panel);border-radius:10px}.related-links a:hover{border-color:var(--primary)}.qa-list{display:grid;gap:16px}.qa-item{border-bottom:1px solid var(--line);padding:0 0 16px}.qa-item h3{color:var(--text);font-size:18px}.numbered-list{list-style:none;counter-reset:item;padding:0}.numbered-list>li{counter-increment:item;position:relative;padding:0 0 22px 55px;border-bottom:1px solid var(--line);margin:0 0 23px}.numbered-list>li:before{content:counter(item,decimal-leading-zero);position:absolute;left:0;top:0;color:var(--gold);font-size:17px;font-weight:800}.anchor-pills{display:flex;flex-wrap:wrap;gap:10px;margin:18px 0 32px}.anchor-pills a{border:1px solid var(--line);padding:7px 14px;border-radius:999px;font-size:14px;min-height:40px}.anchor-pills a:hover{background:var(--panel2)}.data-table{width:100%;border-collapse:collapse;font-size:15px}.data-table th,.data-table td{border-bottom:1px solid var(--line);padding:14px;text-align:left;vertical-align:top}.data-table th{color:var(--text);background:var(--panel2)}.table-scroll{overflow-x:auto}.carousel{position:relative;background:#12151c;border:1px solid var(--line);border-radius:16px;overflow:hidden}.carousel-slide{height:clamp(220px,24vw,300px)}.carousel-slide[hidden]{display:none!important}.carousel-slide .media{height:100%;aspect-ratio:auto;border-radius:0}.carousel-controls{display:flex;justify-content:space-between;align-items:center;gap:15px;padding:8px 12px}.carousel-controls>button{border:1px solid var(--line);border-radius:8px;background:var(--panel2);color:white;min-height:40px;min-width:44px}.carousel-dots{display:flex;gap:7px}.carousel-dot{width:34px;height:40px;border:none;background:transparent;padding:11px;display:grid;place-items:center}.carousel-dot:after{content:"";display:block;width:8px;height:8px;background:#727782;border-radius:99px}.carousel-dot[aria-current="true"]:after{background:var(--primary);width:17px}.news-stack{display:grid;gap:18px}.news-stack article{border-left:3px solid var(--primary);padding:3px 0 5px 22px}.news-stack small{color:var(--gold);font-weight:700}.legal-body{max-width:880px;margin-inline:auto}.legal-body .article-section{border-bottom:1px solid var(--line);padding-bottom:12px}.legal-body .anchor-pills{margin-bottom:32px}.site-footer{background:var(--nav);border-top:1px solid var(--line)}.footer-grid{padding:48px 0;display:grid;grid-template-columns:1.3fr repeat(3,1fr);gap:26px}.footer-intro p{font-size:13px;color:var(--muted);max-width:240px;margin-top:15px}.footer-grid h2{font-size:15px;margin:0 0 12px}.footer-grid>div>a:not(.brand){display:block;font-size:13px;color:var(--muted);padding:5px 0}.footer-grid a:hover{color:#fff}.footer-bottom{border-top:1px solid var(--line);padding:16px 0 23px;display:flex;justify-content:space-between;gap:16px;color:var(--muted);font-size:12px}.footer-bottom p{margin:0}.wide-callout{background:linear-gradient(135deg,#28212a,#1A1E27);border:1px solid var(--line);border-radius:16px;padding:28px}.wide-callout h2{margin-bottom:10px}.figure-text{color:var(--muted);font-size:13px;margin-top:8px}.meta-tiny{color:var(--gold);font-size:12px;font-weight:700;letter-spacing:.1em}
@media(max-width:1100px){.desktop-primary a{padding-inline:8px}.head-primary{gap:12px}.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:1024px){.desktop-primary,.head-secondary{display:none}.site-header .head-primary{min-height:62px;justify-content:space-between;gap:7px}.menu-toggle{display:flex;flex-direction:column;justify-content:center;gap:5px;align-items:center;border:0;background:transparent;width:44px;height:44px;padding:9px;color:#fff;flex-shrink:0}.menu-toggle span{display:block;width:22px;height:2px;background:currentColor;border-radius:2px}.head-primary .brand{margin-right:auto;margin-left:auto}.head-primary .brand-logo{width:37px;height:37px}.head-primary .brand-name strong{font-size:16px}.head-primary .brand-name small{font-size:8px}.register-button{min-width:58px;min-height:40px;font-size:14px}.mobile-drawer{display:block;position:fixed;inset:0 auto 0 0;width:min(84vw,320px);max-width:100%;height:100dvh;overflow-y:auto;background:#151820;color:#F7F8FA;z-index:12000;transform:translateX(-105%);transition:transform .2s ease;visibility:hidden}.mobile-drawer.is-open{transform:translateX(0);visibility:visible}.drawer-mask{display:none;position:fixed;inset:0;background:rgba(0,0,0,.45);z-index:11000;opacity:0;pointer-events:none}.drawer-mask.is-visible{display:block;opacity:1;pointer-events:auto}.drawer-head{display:flex;justify-content:space-between;align-items:center;padding:14px 18px;border-bottom:1px solid var(--line)}.drawer-close{width:44px;height:44px;background:var(--panel2);color:white;border:0;border-radius:8px;font-size:28px;line-height:1}.mobile-drawer nav{padding:6px 18px 30px}.mobile-drawer nav h2{font-size:12px;color:var(--gold);letter-spacing:.11em;margin:18px 0 6px}.mobile-drawer nav a{display:block;border-bottom:1px solid var(--line);min-height:44px;padding:8px 9px;color:var(--body)}body.drawer-open{overflow:hidden}.mobile-bottom{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));position:fixed;z-index:1000;bottom:0;left:0;right:0;background:#151820;border-top:1px solid var(--line);padding-bottom:env(safe-area-inset-bottom)}.mobile-bottom a{display:grid;place-items:center;min-height:54px;font-size:13px;color:var(--muted)}.mobile-bottom a[aria-current]{color:#FF927F}.mobile-bottom a:last-child{color:#fff;background:rgba(244,81,50,.18)}.site-main{padding-bottom:110px}.browse-layout{grid-template-columns:minmax(0,1fr)}.sidebar{position:static;display:block}.gallery{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:720px){.container{width:calc(100% - 32px)}body{font-size:15.5px;line-height:1.78}h1{font-size:clamp(25px,6.8vw,30px)}h2{font-size:22px}.site-main{padding-top:24px}.page-intro{padding:14px 0 24px;margin-bottom:28px}.lead{font-size:15.5px}.section{margin:34px 0}.topic-grid,.split,.split.wide-left,.feature-hero,.feature-row,.feature-row.reverse{grid-template-columns:minmax(0,1fr)}.feature-row.reverse .media{order:0}.topic-grid article{padding:19px}.panel{padding:19px}.gallery{gap:16px}.gallery--three{grid-template-columns:repeat(2,minmax(0,1fr))}.related-links{grid-template-columns:1fr}.carousel-slide{height:clamp(140px,40vw,180px)}.media--portrait{max-height:260px;aspect-ratio:4/5}.media--app{max-height:none}.footer-grid{grid-template-columns:1fr;gap:20px;padding:30px 0}.footer-bottom{display:block}.footer-bottom p+p{margin-top:6px}.data-table{font-size:13px}.data-table th,.data-table td{padding:10px}.news-stack article{padding-left:14px}}
@media(max-width:350px){.head-primary .brand{gap:5px}.head-primary .brand-logo{width:32px;height:32px}.head-primary .brand-name strong{font-size:14px}.head-primary .brand-name small{font-size:7px}.head-primary .register-button{min-width:50px}.gallery{grid-template-columns:1fr}.carousel-dot{width:27px;padding:7px}.carousel-controls{padding-inline:5px}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important}}