*{box-sizing:border-box} :root{--bg:#000;--deep:#050505;--panel:#0b0b0b;--panel2:#121212;--hover:#1a1a1a;--white:#fff;--title:#f7f7f7;--text:#ddd;--muted:#a5a5a5;--dim:#727272;--line:rgba(255,255,255,.12);--strong:rgba(255,255,255,.4);--max:1320px;--head:151px}html{scroll-behavior:smooth;background:#000}body{margin:0;min-width:320px;overflow-x:hidden;background:#000;color:var(--text);font-family:Arial,"PingFang SC","Microsoft YaHei",sans-serif;line-height:1.72}body.panel-open{overflow:hidden}a{color:inherit;text-decoration:none}button,input{font:inherit}button{color:inherit}img{display:block;max-width:100%;height:auto}[hidden]{display:none!important}.skip-link{position:fixed;left:16px;top:-80px;z-index:2000;padding:10px 14px;background:#fff;color:#000}.skip-link:focus{top:12px}:focus-visible{outline:2px solid #fff;outline-offset:3px}.container-wide{width:min(calc(100% - 40px),var(--max));margin:auto}.eyebrow{margin:0 0 10px;color:var(--muted);font-size:.78rem;font-weight:700;letter-spacing:.18em;text-transform:uppercase}.display-title{margin:0;color:#fff;font-size:clamp(2.5rem,7vw,6.8rem);line-height:.96;letter-spacing:-.055em}.section-title{margin:0;color:var(--title);font-size:clamp(1.9rem,4vw,3.6rem);line-height:1.12;letter-spacing:-.04em}.section-intro{max-width:760px;margin:16px 0 0;color:var(--muted);font-size:1.04rem}.section-head{display:flex;align-items:end;justify-content:space-between;gap:24px;margin-bottom:34px}.text-link{display:inline-flex;min-height:44px;align-items:center;border-bottom:1px solid var(--strong);color:#fff;font-weight:700}.button-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}.btn{display:inline-flex;min-height:46px;align-items:center;justify-content:center;padding:0 20px;border:1px solid var(--strong);font-weight:800}.btn-primary{background:#fff;color:#000;border-color:#fff}.btn-secondary{background:transparent;color:#fff}.btn:hover,.text-link:hover{opacity:.82}.site-header{position:sticky;top:0;z-index:1000;background:rgba(0,0,0,.97)}.utility-bar{height:34px;border-bottom:1px solid var(--line)}.utility-inner{width:min(calc(100% - 40px),var(--max));height:100%;margin:auto;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:22px;font-size:.76rem;color:var(--muted)}.utility-brand{margin:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.utility-center,.utility-actions{display:flex;align-items:center;gap:18px}.utility-actions{justify-content:flex-end}.utility-bar a:hover,.text-button:hover{color:#fff}.text-button{border:0;padding:0;background:transparent;cursor:pointer}.brand-nav-wrap{height:76px;border-bottom:1px solid var(--line)}.brand-nav{position:relative;height:100%;display:flex;align-items:center;justify-content:space-between}.brand-nav-side{width:36%;display:flex;align-items:center;gap:18px}.brand-nav-right{justify-content:flex-end}.brand-home{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);display:inline-flex;align-items:center;justify-content:center;min-width:180px;min-height:50px}.brand-logo-image{max-width:150px;max-height:52px;object-fit:contain}.brand-logo-text{display:flex;flex-direction:column;align-items:center;line-height:1;color:#fff}.brand-logo-text strong{font-size:1.7rem;letter-spacing:.18em;padding-left:.18em}.brand-logo-text small{margin-top:7px;font-size:.58rem;letter-spacing:.22em}.nav-action,.more-button{min-height:44px;border:0;background:transparent;cursor:pointer}.nav-action{display:inline-flex;align-items:center;gap:10px;padding:0}.menu-lines{width:20px;display:grid;gap:5px}.menu-lines i{display:block;height:1px;background:#fff}.current-channel{color:var(--muted);font-size:.86rem}.nav-text-link,.nav-app-link{display:inline-flex;min-height:44px;align-items:center;font-weight:700}.nav-app-link{padding:0 16px;background:#fff;color:#000}.channel-nav-wrap{height:41px;border-bottom:1px solid var(--line);background:#050505}.channel-row{height:100%;display:flex;align-items:stretch}.channel-nav{display:flex;flex:1;min-width:0;overflow:hidden;white-space:nowrap}.channel-nav a{position:relative;display:inline-flex;align-items:center;padding:0 15px;color:var(--muted);font-size:.84rem}.channel-nav a:first-child{padding-left:0}.channel-nav a:hover,.channel-nav a.is-active{color:#fff}.channel-nav a.is-active:after{content:"";position:absolute;left:15px;right:15px;bottom:0;height:2px;background:#fff;pointer-events:none}.channel-nav a:first-child.is-active:after{left:0}.more-wrap{position:relative;flex:0 0 auto}.more-button{padding-left:18px}.more-menu{position:absolute;right:0;top:calc(100% + 1px);width:190px;padding:8px;background:#0b0b0b;border:1px solid var(--line);box-shadow:0 18px 46px rgba(0,0,0,.48);visibility:hidden;opacity:0;pointer-events:none;transform:translateY(-5px);transition:.18s}.more-menu.is-open{visibility:visible;opacity:1;pointer-events:auto;transform:none}.more-menu a{display:flex;min-height:42px;align-items:center;padding:0 12px;color:var(--muted)}.more-menu a:hover{background:var(--hover);color:#fff}main{min-height:60vh}.hero{padding:clamp(44px,6vw,88px) 0 72px;border-bottom:1px solid var(--line)}.hero-grid{display:grid;grid-template-columns:minmax(0,1.45fr) minmax(340px,.75fr);gap:clamp(28px,5vw,72px);align-items:stretch}.hero-media{min-height:570px}.media-image,.media-fallback{width:100%;height:100%;min-height:inherit;aspect-ratio:16/10;object-fit:cover;filter:grayscale(1) contrast(1.04)}.media-fallback{display:grid;place-items:center;position:relative;overflow:hidden;border:1px solid var(--line);background:radial-gradient(circle at 30% 30%,#272727 0,#0a0a0a 46%,#000 100%)}.media-fallback:before,.media-fallback:after{content:"";position:absolute;border:1px solid rgba(255,255,255,.12);pointer-events:none}.media-fallback:before{inset:9%}.media-fallback:after{width:38%;height:145%;transform:rotate(28deg);background:rgba(255,255,255,.03)}.media-fallback span{position:relative;z-index:1;color:rgba(255,255,255,.86);letter-spacing:.34em;font-size:.78rem}.hero-copy{display:flex;flex-direction:column;justify-content:center}.hero-copy .display-title{max-width:680px;font-size:clamp(3rem,5.8vw,6rem)}.hero-copy>p:not(.eyebrow){color:var(--muted);font-size:1.04rem}.hero-briefs{display:grid;margin-top:32px;border-top:1px solid var(--line)}.hero-briefs a{display:grid;grid-template-columns:100px 1fr;gap:18px;padding:18px 0;border-bottom:1px solid var(--line)}.hero-briefs strong{color:#fff}.hero-briefs span{color:var(--muted);font-size:.9rem}.home-section,.content-section{padding:clamp(70px,9vw,122px) 0;border-bottom:1px solid var(--line)}.feature-grid{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(280px,.65fr);gap:22px}.feature-main{min-height:560px;padding:clamp(28px,5vw,60px);display:flex;flex-direction:column;justify-content:flex-end;border:1px solid var(--line);background:linear-gradient(180deg,rgba(0,0,0,.05),rgba(0,0,0,.9)),#101010}.feature-main h3{max-width:780px;margin:10px 0 16px;color:#fff;font-size:clamp(2rem,5vw,4.8rem);line-height:1;letter-spacing:-.04em}.feature-main p{max-width:760px}.status-line{display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:18px;color:var(--muted);font-size:.84rem}.feature-list{display:grid;border-top:1px solid var(--line)}.feature-list a{display:block;padding:22px 0;border-bottom:1px solid var(--line)}.feature-list small,.catalog-card small,.index-card small{color:var(--dim);letter-spacing:.08em}.feature-list h3,.catalog-card h3,.index-card h3{margin:7px 0;color:#fff;line-height:1.25}.feature-list p,.catalog-card p,.index-card p{margin:0;color:var(--muted);font-size:.92rem}.catalog-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));border-top:1px solid var(--line);border-left:1px solid var(--line)}.catalog-card{min-height:230px;padding:28px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);transition:background .18s}.catalog-card:hover{background:var(--panel2)}.catalog-card h3{font-size:1.35rem}.card-meta{margin-top:26px;color:#fff;font-size:.82rem}.split-feature{display:grid;grid-template-columns:.9fr 1.1fr;gap:48px;align-items:center}.split-feature .media-frame{min-height:520px}.index-list{display:grid}.index-card{display:grid;grid-template-columns:86px 1fr auto;gap:24px;align-items:start;padding:26px 0;border-top:1px solid var(--line)}.index-card:last-child{border-bottom:1px solid var(--line)}.index-number{color:var(--dim);font-size:.84rem}.index-card .text-link{align-self:center}.timeline{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));border-top:1px solid var(--line);border-left:1px solid var(--line)}.timeline article{min-height:250px;padding:28px;border-right:1px solid var(--line);border-bottom:1px solid var(--line)}.timeline .step{color:var(--dim);font-size:.8rem}.timeline h3{margin:18px 0 10px;color:#fff}.timeline p{color:var(--muted)}.calendar-list{border-top:1px solid var(--line)}.calendar-row{display:grid;grid-template-columns:150px 1fr 180px;gap:24px;padding:22px 0;border-bottom:1px solid var(--line)}.calendar-row strong{color:#fff}.calendar-row span{color:var(--muted)}.calendar-status{text-align:right}.dual-panel{display:grid;grid-template-columns:1fr 1fr;border-top:1px solid var(--line);border-left:1px solid var(--line)}.dual-panel article{padding:clamp(28px,4vw,52px);border-right:1px solid var(--line);border-bottom:1px solid var(--line)}.dual-panel h3{margin:0 0 16px;color:#fff;font-size:1.8rem}.dual-panel p{color:var(--muted)}.faq-list{border-top:1px solid var(--line)}details{border-bottom:1px solid var(--line)}summary{display:flex;min-height:68px;align-items:center;justify-content:space-between;gap:24px;cursor:pointer;color:#fff;font-weight:700;list-style:none}summary::-webkit-details-marker{display:none}summary:after{content:"+";color:var(--muted);font-size:1.4rem}details[open] summary:after{content:"−"}details p{max-width:930px;margin:0;padding:0 0 24px;color:var(--muted)}.page-hero{padding:clamp(58px,8vw,110px) 0 64px;border-bottom:1px solid var(--line);background:#050505}.page-hero .display-title{max-width:1000px}.page-lead{max-width:850px;margin:24px 0 0;color:var(--muted);font-size:1.08rem}.page-meta{display:flex;flex-wrap:wrap;gap:10px 26px;margin-top:28px;color:var(--dim);font-size:.84rem}.content-grid{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:64px}.article-stack{min-width:0}.article-section{padding:0 0 42px;margin-bottom:42px;border-bottom:1px solid var(--line)}.article-section h2{margin:0 0 14px;color:#fff;font-size:clamp(1.55rem,3vw,2.45rem);line-height:1.18}.article-section p{margin:0 0 16px}.topic-cards{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));border-top:1px solid var(--line);border-left:1px solid var(--line)}.topic-card{padding:28px;border-right:1px solid var(--line);border-bottom:1px solid var(--line)}.topic-card h3{margin-top:0;color:#fff}.side-note{position:sticky;top:calc(var(--head) + 24px);align-self:start;padding:26px;background:var(--panel);border:1px solid var(--line)}.side-note h2{margin:0 0 12px;color:#fff;font-size:1.15rem}.side-note p{color:var(--muted);font-size:.92rem}.side-note a{display:flex;min-height:44px;align-items:center;border-top:1px solid var(--line);color:#fff}.notice-box{padding:26px;background:#ededed;color:#111}.notice-box h2{margin:0 0 10px;color:#000}.notice-box p{margin:0;color:#2a2a2a}.related-links{display:flex;flex-wrap:wrap;gap:10px}.related-links a{display:inline-flex;min-height:42px;align-items:center;padding:0 14px;border:1px solid var(--strong)}.page-ending{padding:42px 0 0;color:var(--muted)}.site-footer{padding:74px 0 calc(34px + env(safe-area-inset-bottom))}.footer-grid{display:grid;grid-template-columns:1.5fr repeat(4,1fr);gap:40px}.footer-grid h2{margin:0 0 16px;color:#fff;font-size:.9rem}.footer-grid>div>a:not(.footer-logo){display:block;width:fit-content;padding:5px 0;color:var(--muted);font-size:.88rem}.footer-grid>div>a:hover{color:#fff}.footer-brand p{max-width:340px;color:var(--muted);font-size:.9rem}.footer-logo{display:inline-flex;margin-bottom:20px}.footer-logo .brand-logo-text{align-items:flex-start}.footer-notice{display:flex;justify-content:space-between;gap:40px;margin-top:56px;padding-top:26px;border-top:1px solid var(--line);color:var(--dim);font-size:.78rem}.footer-notice p:first-child{max-width:820px}.site-overlay{position:fixed;inset:0;z-index:1190;background:rgba(0,0,0,.72);opacity:0;visibility:hidden;pointer-events:none;transition:.2s}.site-overlay.is-visible{opacity:1;visibility:visible;pointer-events:auto}.site-drawer{position:fixed;left:0;top:0;bottom:0;z-index:1200;width:min(520px,90vw);overflow-y:auto;padding:24px 28px 48px;background:#050505;border-right:1px solid var(--line);transform:translateX(-102%);visibility:hidden;pointer-events:none;transition:.24s}.site-drawer.is-open{transform:none;visibility:visible;pointer-events:auto}.drawer-head,.search-head{display:flex;align-items:center;justify-content:space-between;gap:20px;padding-bottom:20px;border-bottom:1px solid var(--line)}.drawer-brand .brand-logo-text{align-items:flex-start}.icon-close{position:relative;width:44px;height:44px;border:1px solid var(--line);background:transparent;cursor:pointer}.icon-close span{position:absolute;left:11px;right:11px;top:21px;height:1px;background:#fff}.icon-close span:first-child{transform:rotate(45deg)}.icon-close span:last-child{transform:rotate(-45deg)}.drawer-groups section{padding:26px 0 10px}.drawer-groups h2{margin:0 0 8px;color:var(--dim);font-size:.78rem;letter-spacing:.14em}.drawer-groups a{display:block;padding:15px 0;border-bottom:1px solid var(--line)}.drawer-groups strong{display:block;color:#fff}.drawer-groups span{display:block;margin-top:3px;color:var(--muted);font-size:.84rem}.search-panel{position:fixed;inset:0;z-index:1210;overflow-y:auto;background:#000;opacity:0;visibility:hidden;pointer-events:none;transition:.2s}.search-panel.is-open{opacity:1;visibility:visible;pointer-events:auto}.search-shell{padding-top:28px;padding-bottom:80px}.search-head p{color:var(--muted);letter-spacing:.18em}.search-label{display:block;margin-top:clamp(54px,9vw,120px);color:var(--muted)}.search-input{width:100%;border:0;border-bottom:1px solid var(--strong);border-radius:0;padding:20px 0;background:transparent;color:#fff;font-size:clamp(2rem,6vw,5rem);outline:0}.search-input::placeholder{color:#333}.search-note{color:var(--dim)}.search-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));margin-top:52px;border-top:1px solid var(--line);border-left:1px solid var(--line)}.search-grid a{min-height:150px;padding:24px;border-right:1px solid var(--line);border-bottom:1px solid var(--line)}.search-grid a:hover{background:var(--panel2)}.search-grid strong,.search-grid span{display:block}.search-grid strong{color:#fff}.search-grid span{margin-top:8px;color:var(--muted);font-size:.86rem}.search-empty{color:var(--muted)}.mobile-bottom-nav{display:none}@media(max-width:1080px){.desktop-only{display:none!important}.utility-inner{grid-template-columns:1fr auto}.utility-center{display:none}.brand-nav-side{width:25%}.channel-nav{overflow-x:auto;scrollbar-width:none}.channel-nav::-webkit-scrollbar{display:none}.hero-grid,.feature-grid,.split-feature,.content-grid{grid-template-columns:1fr}.hero-copy{order:-1}.hero-media{min-height:460px}.side-note{position:static}.catalog-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.timeline{grid-template-columns:repeat(2,minmax(0,1fr))}.search-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.footer-grid{grid-template-columns:repeat(3,1fr)}.footer-brand{grid-column:1/-1}}@media(max-width:720px){:root{--head:139px}body{padding-bottom:calc(62px + env(safe-area-inset-bottom))}.container-wide,.utility-inner{width:min(calc(100% - 28px),var(--max))}.utility-bar{height:32px}.utility-brand{font-size:.7rem}.utility-actions a:first-child{display:none}.brand-nav-wrap{height:66px}.brand-nav-side{width:28%}.brand-home{min-width:136px}.brand-logo-image{max-width:120px;max-height:42px}.brand-logo-text strong{font-size:1.35rem}.brand-logo-text small{font-size:.5rem}.nav-app-link{min-height:42px;padding:0 11px;font-size:.78rem}.channel-row{width:100%;padding-left:14px}.channel-nav a{flex:0 0 auto;padding:0 12px}.channel-nav a.is-active:after{left:12px;right:12px}.more-wrap{padding-right:14px;background:#050505}.more-button{padding-left:12px}.hero{padding-top:42px}.hero-media{min-height:280px}.hero-copy .display-title{font-size:clamp(2.9rem,15vw,4.5rem)}.hero-briefs a{grid-template-columns:82px 1fr;gap:12px}.section-head{align-items:flex-start;flex-direction:column}.feature-main{min-height:430px;padding:26px}.catalog-grid,.topic-cards,.dual-panel,.timeline,.search-grid{grid-template-columns:1fr}.catalog-card{min-height:0}.index-card{grid-template-columns:44px 1fr;gap:14px}.index-card .text-link{grid-column:2;width:fit-content}.calendar-row{grid-template-columns:1fr;gap:6px}.calendar-status{text-align:left}.footer-grid{grid-template-columns:repeat(2,1fr);gap:32px 20px}.footer-brand{grid-column:1/-1}.footer-notice{flex-direction:column;gap:8px}.mobile-bottom-nav{position:fixed;left:0;right:0;bottom:0;z-index:1100;display:grid;grid-template-columns:repeat(5,1fr);min-height:calc(58px + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom);background:rgba(0,0,0,.98);border-top:1px solid var(--line)}.mobile-bottom-nav a{display:flex;min-height:58px;align-items:center;justify-content:center;color:var(--dim);font-size:.76rem}.mobile-bottom-nav a.is-active{color:#fff}body.panel-open .mobile-bottom-nav{visibility:hidden;pointer-events:none}.site-drawer{padding-left:18px;padding-right:18px}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;animation:none!important;transition:none!important}}