:root{color-scheme:dark;--bg:#111318;--nav:#151820;--panel:#1a1e27;--panel2:#222733;--text:#f7f8fa;--body:#d5d8df;--dim:#aeb4c0;--accent:#f45132;--gold:#d7a84b;--line:rgba(255,255,255,.09)}*{box-sizing:border-box;min-width:0}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}a{color:inherit;text-decoration:none;touch-action:manipulation}a:hover{color:#ff684e}button{font:inherit;cursor:pointer;touch-action:manipulation}a:focus-visible,button:focus-visible{outline:2px solid var(--gold);outline-offset:3px}.container{width:min(1200px,calc(100% - 40px));margin-inline:auto}.skip-link{position:absolute;left:-9999px;z-index:20000;background:#fff;color:#111;padding:8px}.skip-link:focus{left:12px;top:12px}.site-header{background:var(--nav);border-bottom:1px solid var(--line)}.header-primary{display:flex;align-items:center;gap:23px;min-height:72px}.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;color:#fff;white-space:nowrap}.brand .media{width:43px;height:43px;flex:0 0 43px}.brand-words{display:flex;flex-direction:column;line-height:1.2}.brand b{font-size:21px;letter-spacing:.5px}.brand small{font-size:10px;color:var(--gold);letter-spacing:1.9px;margin-top:4px}.desktop-main{display:flex;align-items:center;gap:clamp(9px,1.8vw,24px);flex:1;justify-content:center;white-space:nowrap}.desktop-main a,.secondary-nav a{position:relative;display:inline-flex;align-items:center;min-height:44px;color:var(--body);font-weight:600;font-size:14px}.desktop-main a:hover,.secondary-nav a:hover,.desktop-main a.active,.secondary-nav a.active{color:#fff}.desktop-main a.active:after,.secondary-nav a.active:after{content:'';position:absolute;bottom:3px;left:0;right:0;height:2px;background:var(--accent)}.register-link{display:inline-flex;align-items:center;justify-content:center;background:var(--accent);border-radius:8px;color:#fff;font-weight:700;min-height:42px;min-width:76px}.register-link:hover{background:#ff684e;color:#fff}.header-secondary{border-top:1px solid var(--line)}.secondary-nav{display:flex;align-items:center;justify-content:center;gap:clamp(24px,5vw,70px);height:42px}.secondary-nav a{min-height:40px;font-size:13px}.menu-button,.mobile-bottom{display:none}.mobile-drawer,.drawer-mask{display:none}.main-content{padding-top:32px;padding-bottom:75px}h1,h2,h3{line-height:1.3;color:var(--text);overflow-wrap:anywhere}h1{font-size:clamp(32px,3.5vw,42px);letter-spacing:-.025em;margin:0 0 18px}h2{font-size:clamp(23px,2.4vw,28px);margin:0 0 18px}h3{font-size:19px;margin:0 0 10px}p{margin:0 0 16px}section{margin:0 0 48px}.eyebrow{color:var(--gold);letter-spacing:.16em;font-size:12px;font-weight:800;margin-bottom:10px}.lede{max-width:820px;font-size:17px;color:var(--dim)}.hero-copy{padding:36px 0 22px}.section-head{display:flex;align-items:end;justify-content:space-between;gap:20px;margin-bottom:21px}.section-head p{margin:0;max-width:650px}.section-head h2{margin-bottom:6px}.text-link{color:#ff856e;text-decoration:underline;text-underline-offset:4px}.panel{padding:26px;background:var(--panel);border:1px solid var(--line);border-radius:16px}.panel-muted{background:var(--panel2)}.grid3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:17px}.grid2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}.card{background:var(--panel);border:1px solid var(--line);border-radius:14px;overflow:hidden}.card-copy{padding:19px 20px 21px}.card-copy h3{margin:0 0 9px}.card-copy p{font-size:14px;color:var(--dim)}.card-copy a,.article-links a,.link-row a{display:inline-flex;align-items:center;min-height:40px;color:#ff856e;font-weight:650}.media{position:relative;width:100%;max-width:100%;overflow:hidden;border-radius:12px;background:#12151c;aspect-ratio:16/9}.media>img{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;object-position:center center;display:block}.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;background:transparent;border-radius:0}.media--logo img{position:static;width:100%;height:100%;object-fit:contain}.media-fallback{display:block;width:100%;height:100%;background:linear-gradient(135deg,#1b2030,#12151c);border:1px solid var(--line);border-radius:inherit}.feature{display:grid;grid-template-columns:1.1fr 1fr;gap:30px;align-items:center}.feature.reverse{grid-template-columns:1fr 1.1fr}.feature.reverse .feature-visual{order:2}.feature-copy p{color:var(--dim)}.feature-visual{padding:10px;background:var(--panel);border:1px solid var(--line);border-radius:16px}.feature-copy .link-row{display:flex;gap:18px;flex-wrap:wrap}.list-simple{padding:0;list-style:none;margin:0}.list-simple li{padding:14px 0;border-bottom:1px solid var(--line)}.list-simple li:last-child{border:0}.list-simple strong{display:block;color:var(--text)}.list-simple span{color:var(--dim);font-size:14px}.split-reading{display:grid;grid-template-columns:1.2fr .8fr;gap:24px}.article-shell{display:grid;grid-template-columns:minmax(0,1fr) 270px;gap:34px;align-items:start}.article-body{max-width:790px}.article-body section{margin-bottom:38px}.article-body p{color:var(--body)}.article-body .media{margin:16px 0 24px}.article-side{position:sticky;top:20px;background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:20px}.article-side h2{font-size:17px}.article-side a{display:block;border-top:1px solid var(--line);padding:12px 0;font-size:14px}.article-links{border-top:1px solid var(--line);padding-top:20px;display:flex;gap:16px;flex-wrap:wrap}.article-intro{padding:25px 0 30px;max-width:850px}.article-intro p{font-size:17px;color:var(--dim)}.article-figure{margin:8px 0 25px}.article-body ul,.article-body ol{padding-left:24px}.article-body li{margin-bottom:12px}.note{border-left:3px solid var(--gold);padding:14px 18px;background:var(--panel2);border-radius:0 8px 8px 0;color:var(--dim)}.gallery{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}.gallery-card{background:var(--panel);border-radius:14px;border:1px solid var(--line);padding:12px}.gallery-card h3{font-size:17px;margin:15px 4px 8px}.gallery-card p{color:var(--dim);font-size:14px;margin:0 4px 10px}.gallery-card .media{max-height:340px;margin-inline:auto}.pill-nav{display:flex;flex-wrap:wrap;gap:10px;margin:16px 0 32px}.pill-nav a{padding:9px 18px;border-radius:30px;border:1px solid var(--line);background:var(--panel);min-height:44px}.faq-item{padding:20px 0;border-bottom:1px solid var(--line)}.faq-item h3{font-size:18px}.step-index{color:var(--accent);font-weight:800;font-size:13px;letter-spacing:.1em}.read-row{display:grid;grid-template-columns:150px 1fr;gap:18px;padding:18px 0;border-bottom:1px solid var(--line)}.read-row strong{color:var(--text)}.carousel-frame{background:var(--panel);border-radius:16px;border:1px solid var(--line);padding:12px}.carousel-slide[hidden]{display:none!important}.media--carousel{height:clamp(220px,24vw,300px);aspect-ratio:auto}.carousel-actions{display:flex;gap:12px;justify-content:center;align-items:center;margin-top:11px}.carousel-actions button{background:var(--panel2);color:var(--text);border:1px solid var(--line);border-radius:8px;min-height:40px;min-width:42px}.carousel-actions .dots{display:flex;gap:8px}.carousel-actions .dots button{width:12px;height:12px;min-width:12px;min-height:12px;border-radius:50%;padding:0;background:#606576}.carousel-actions .dots button[aria-current=true]{background:var(--accent)}.site-footer{background:var(--nav);border-top:1px solid var(--line);padding:45px 0 20px}.footer-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:36px}.footer-grid h2{font-size:17px}.footer-grid a{display:block;font-size:14px;color:var(--dim);padding:4px 0;min-height:40px}.footer-grid a:hover{color:#fff}.footer-bottom{border-top:1px solid var(--line);margin-top:30px;padding-top:20px;display:flex;gap:20px;justify-content:space-between;align-items:center;font-size:13px;color:var(--dim)}.footer-bottom p{margin:0}.footer-identity{display:flex;align-items:center;gap:12px}.footer-identity .media{width:35px;height:35px}.gallery-group{scroll-margin-top:20px}
@media(max-width:1024px){.desktop-main,.header-secondary{display:none}.header-primary{min-height:64px;display:grid;grid-template-columns:50px minmax(0,1fr) 76px;gap:8px}.header-primary .brand{justify-self:center}.header-primary .brand .media{width:36px;height:36px;flex-basis:36px}.header-primary .brand b{font-size:18px}.header-primary .brand small{font-size:9px}.menu-button{display:flex;flex-direction:column;justify-content:center;align-items:center;gap:5px;background:none;border:0;width:44px;height:44px}.menu-button span{width:22px;height:2px;background:#fff}.register-link{min-width:70px;min-height:40px}.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}.mobile-drawer.is-open{transform:translateX(0)}.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-open{overflow:hidden}.drawer-top{display:flex;align-items:center;justify-content:space-between;padding:16px;border-bottom:1px solid var(--line)}.drawer-top .media{width:38px;height:38px}.drawer-close{height:44px;width:44px;border:1px solid var(--line);color:#fff;background:var(--panel2);border-radius:8px;font-size:26px}.drawer-group{padding:10px 16px 16px;border-bottom:1px solid var(--line)}.drawer-group h2{color:var(--gold);font-size:13px;margin:7px 0}.drawer-group a{display:block;padding:10px 8px;min-height:44px;border-radius:7px}.drawer-group a[aria-current]{background:#2b313d;color:#fff}.mobile-bottom{display:grid;position:fixed;bottom:0;left:0;right:0;grid-template-columns:repeat(4,minmax(0,1fr));background:var(--nav);border-top:1px solid var(--line);z-index:1000;padding-bottom:env(safe-area-inset-bottom)}.mobile-bottom a{display:flex;align-items:center;justify-content:center;height:58px;font-size:13px}.mobile-bottom a[aria-current]{color:#ff856e;border-top:2px solid var(--accent)}.main-content{padding-bottom:100px}.footer-bottom{padding-bottom:75px}.article-shell{grid-template-columns:1fr}.article-side{position:static}.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:700px){.container{width:calc(100% - 32px)}body{font-size:15.5px}h1{font-size:29px}h2{font-size:23px}.main-content{padding-top:17px}.hero-copy{padding:28px 0 12px}.lede,.article-intro p{font-size:16px}.grid3,.grid2,.feature,.feature.reverse,.split-reading{grid-template-columns:1fr}.feature.reverse .feature-visual{order:0}.feature{gap:14px}.section-head{display:block}.panel{padding:20px}.gallery{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.gallery-card{padding:8px}.gallery-card h3{font-size:15px}.gallery-card p{font-size:13px}.gallery-card .media{max-height:260px}.media--carousel{height:clamp(140px,40vw,180px)}.read-row{grid-template-columns:1fr;gap:3px}.footer-grid{grid-template-columns:1fr;gap:8px}.footer-bottom{display:block}.footer-bottom p{margin-top:12px}.article-intro{padding:20px 0}.article-body section{margin-bottom:29px}.site-footer{padding-top:28px}}
@media(max-width:350px){.header-primary{grid-template-columns:44px minmax(0,1fr) 65px;gap:4px}.header-primary .brand{gap:5px}.header-primary .brand b{font-size:16px}.header-primary .brand small{letter-spacing:1px;font-size:8px}.register-link{min-width:62px;font-size:13px}.gallery{grid-template-columns:1fr}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{scroll-behavior:auto!important;animation-duration:.01ms!important;transition-duration:.01ms!important}}