:root{--bg:#fff;--bg-soft:#F5F7FA;--bg-sub:#EEF1F6;--bg-hover:#E4E9F0;--ink:#0A1628;--text:#1E2A3A;--muted:#4A5568;--light:#718096;--blue:#0033A0;--blue2:#0052CC;--blue3:#002066;--blue4:#4D7FE0;--border:rgba(0,51,160,.14);--border-strong:rgba(0,51,160,.32);--shadow:0 12px 36px rgba(0,33,102,.08);--blue-shadow:0 10px 28px rgba(0,51,160,.16);--radius:16px;--max:1280px;--nav-h:72px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;color:var(--text);background:var(--bg);line-height:1.72;overflow-x:hidden}body.ui-locked{overflow:hidden}a{color:inherit;text-decoration:none}img{display:block;max-width:100%;height:auto}button,input{font:inherit}button{cursor:pointer}.content-wrap{width:min(calc(100% - 40px),var(--max));margin:0 auto}.skip-link{position:fixed;left:16px;top:-80px;background:#fff;color:var(--blue);padding:10px 16px;border:1px solid var(--border-strong);z-index:500}.skip-link:focus{top:12px}
.site-header{position:sticky;top:0;z-index:120;background:rgba(255,255,255,.96);backdrop-filter:saturate(130%) blur(14px);border-bottom:1px solid var(--border)}.nav-shell{height:var(--nav-h);width:min(calc(100% - 40px),var(--max));margin:auto;display:flex;align-items:center;gap:26px}.brand-link{display:flex;align-items:center;flex:none}.brand-logo{width:auto;height:34px;max-width:120px;object-fit:contain}.brand-text-logo{font-size:26px;font-weight:900;letter-spacing:-1px;color:var(--blue)}.desktop-nav{display:flex;align-items:stretch;height:100%;gap:4px}.desktop-nav a{display:flex;align-items:center;padding:0 12px;font-weight:700;color:var(--muted);position:relative;white-space:nowrap}.desktop-nav a:hover,.desktop-nav a:focus-visible,.desktop-nav a.is-active{color:var(--blue)}.desktop-nav a.is-active:after{content:"";position:absolute;left:12px;right:12px;bottom:0;height:3px;border-radius:3px;background:var(--blue)}.nav-actions{margin-left:auto;display:flex;align-items:center;gap:8px}.text-button,.primary-small{min-height:44px;padding:0 14px;border-radius:999px;border:1px solid transparent;background:transparent;color:var(--ink);font-weight:800}.text-button:hover{background:var(--bg-sub)}.primary-small{display:inline-flex;align-items:center;background:linear-gradient(135deg,var(--blue2),var(--blue),var(--blue3));color:#fff;box-shadow:var(--blue-shadow)}.icon-button{width:44px;height:44px;border:1px solid var(--border);background:#fff;border-radius:999px;display:inline-flex;flex-direction:column;align-items:center;justify-content:center;gap:4px}.icon-button span{display:block;width:17px;height:2px;background:var(--ink);border-radius:3px}.mobile-only{display:none}.site-main{min-height:60vh}
.home-hero{padding:48px 0 38px;background:linear-gradient(180deg,#fff 0%,#F8FAFD 100%)}.hero-grid{display:grid;grid-template-columns:minmax(0,1.8fr) minmax(330px,1fr);gap:36px;align-items:center}.hero-main-media{min-width:0}.hero-img,.content-img,.app-img{width:100%;height:100%;object-fit:cover}.hero-main-media .hero-img,.hero-main-media .media-fallback{aspect-ratio:16/10}.media-fallback{min-height:220px;border-radius:20px;background:linear-gradient(145deg,#EEF3FB,#DCE7F7);display:grid;place-items:center;align-content:center;gap:2px;color:var(--blue);border:1px solid var(--border);overflow:hidden}.media-fallback span{font-size:clamp(38px,7vw,86px);font-weight:900;letter-spacing:-4px}.media-fallback small{font-size:13px;color:var(--muted)}.hero-media,.wide-media,.feature-media{overflow:hidden;border-radius:22px;box-shadow:var(--shadow);background:var(--bg-sub)}.eyebrow,.section-head>span,.split-panels article>span,.card-grid article>span,.series-card>span{display:inline-flex;color:var(--blue);font-weight:900;letter-spacing:.04em}.home-copy h1,.inner-hero h1{margin:8px 0 16px;font-size:clamp(42px,5.6vw,78px);line-height:1.04;letter-spacing:-.045em;color:var(--ink)}.home-copy p,.hero-lead{font-size:17px;color:var(--muted);margin:0 0 22px}.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px}.primary-button,.secondary-button{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 20px;border-radius:999px;font-weight:900;white-space:nowrap}.primary-button{background:linear-gradient(135deg,var(--blue2),var(--blue),var(--blue3));color:#fff;box-shadow:var(--blue-shadow)}.secondary-button{border:1px solid var(--border-strong);color:var(--blue);background:#fff}.primary-button:hover,.primary-small:hover{transform:translateY(-1px)}.hero-mini-list{margin-top:26px;display:grid;gap:8px}.hero-mini-list a{display:flex;gap:12px;padding:11px 12px;border-radius:12px;border:1px solid transparent}.hero-mini-list a:hover{border-color:var(--border);background:#fff}.hero-mini-list b{color:var(--blue);font-variant-numeric:tabular-nums}.hero-mini-list span{display:grid}.hero-mini-list small{color:var(--light)}
.quick-strip{border-top:1px solid var(--border);border-bottom:1px solid var(--border);background:#fff}.quick-scroll{display:flex;gap:28px;overflow-x:auto;overscroll-behavior-inline:contain;scrollbar-width:none;padding-top:14px;padding-bottom:14px}.quick-scroll::-webkit-scrollbar{display:none}.quick-scroll a{white-space:nowrap;font-weight:800;color:var(--muted)}.quick-scroll a:hover{color:var(--blue)}
.home-section{padding:76px 0}.home-section:nth-of-type(even){background:var(--bg-soft)}.section-head{max-width:760px;margin-bottom:28px}.section-head.split{max-width:none;display:flex;align-items:end;justify-content:space-between;gap:24px}.section-head h2,.two-col h2,.split-panels h2,.card-grid h2,.manifesto-card h2{margin:5px 0 10px;font-size:clamp(30px,4vw,52px);line-height:1.12;letter-spacing:-.035em;color:var(--ink)}.section-head p{color:var(--muted);margin:0}.section-head>a,.feature-primary a,.series-card>a,.card-grid a,.responsibility a{color:var(--blue);font-weight:900}.pill-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.pill-grid article{border:1px solid var(--border);background:#fff;border-radius:999px;padding:18px 20px}.pill-grid b{color:var(--ink)}.pill-grid p{margin:2px 0 0;color:var(--light);font-size:14px}.feature-grid{display:grid;grid-template-columns:2fr 1fr;gap:24px}.feature-primary{border:1px solid var(--border);background:#fff;border-radius:22px;padding:18px;display:grid;grid-template-columns:1.1fr 1fr;gap:24px;box-shadow:var(--shadow)}.feature-primary .feature-media{min-height:100%}.feature-primary h3{font-size:30px;line-height:1.15;margin:6px 0 10px;color:var(--ink)}.content-label{color:var(--blue);font-weight:900}.reason-box{background:var(--bg-soft);padding:12px 14px;border-radius:12px;margin:14px 0}.reason-box p,.watch-note{margin:4px 0;color:var(--muted)}.editor-picks{display:grid;gap:10px}.editor-picks a{display:flex;gap:14px;align-items:center;padding:18px;border:1px solid var(--border);border-radius:14px;background:#fff}.editor-picks b{font-size:24px;color:var(--blue)}.editor-picks span{display:grid}.editor-picks small{color:var(--light)}.horizontal-track{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.horizontal-track article{padding:24px;border-radius:16px;border:1px solid var(--border);background:#fff}.horizontal-track b{color:var(--blue);font-size:18px}.horizontal-track p{margin:8px 0 0;color:var(--muted)}.two-col{display:grid;grid-template-columns:1.05fr 1fr;gap:40px;align-items:center}.wide-media .content-img,.wide-media .media-fallback{aspect-ratio:4/3}.type-index{display:grid;grid-template-columns:1fr 1fr;gap:12px}.type-index a{display:grid;padding:17px;border-radius:14px;background:#fff;border:1px solid var(--border);font-weight:900;color:var(--ink)}.type-index small{font-weight:500;color:var(--light)}.split-panels{display:grid;grid-template-columns:1fr 1fr;gap:18px}.split-panels>article{border:1px solid var(--border);border-radius:20px;background:#fff;padding:28px}.number-list{display:grid;gap:10px}.number-list a{display:grid;grid-template-columns:46px 1fr;align-items:center;border-top:1px solid var(--border);padding:14px 0;font-weight:900}.number-list b{font-size:24px;color:var(--blue);grid-row:1/3}.number-list small{color:var(--light);font-weight:500}.series-card .content-img,.series-card .media-fallback{aspect-ratio:16/8;margin:14px 0}.card-grid{display:grid;gap:16px}.card-grid.three{grid-template-columns:repeat(3,1fr)}.card-grid article{padding:26px;border:1px solid var(--border);background:#fff;border-radius:18px}.card-grid article h3{font-size:23px;margin:6px 0;color:var(--ink)}.rank-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.rank-grid a{display:flex;align-items:center;gap:16px;padding:22px;border:1px solid var(--border);border-radius:16px;background:#fff}.rank-grid b{font-size:34px;color:var(--blue)}.rank-grid span{display:grid;font-weight:900}.rank-grid small{font-weight:500;color:var(--light)}.timeline{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid var(--border);padding-top:24px}.timeline article{position:relative;padding:0 20px 0 0}.timeline i{position:absolute;top:-30px;left:0;width:11px;height:11px;border:3px solid #fff;border-radius:50%;background:var(--blue);box-shadow:0 0 0 1px var(--blue)}.timeline span{color:var(--blue);font-weight:900}.timeline h3{margin:8px 0}.timeline p{color:var(--muted)}.view-list{display:grid;grid-template-columns:repeat(5,1fr);gap:12px}.view-list article{border-top:4px solid var(--blue);background:#fff;padding:20px;border-radius:0 0 14px 14px;box-shadow:var(--shadow)}.view-list b{color:var(--blue);font-size:13px}.view-list h3{margin:8px 0;color:var(--ink)}.view-list p{font-size:14px;color:var(--muted);margin:0}.app-panel{padding:34px;border-radius:24px;border:1px solid var(--border);background:#fff}.app-panel .app-img,.app-panel .media-fallback{aspect-ratio:4/5;max-height:560px}.responsibility{background:linear-gradient(180deg,#F6F9FD,#EEF4FB)!important}.mini-faq{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}.mini-faq a{padding:18px 20px;background:#fff;border:1px solid var(--border);border-radius:14px;font-weight:800}.manifesto-card{padding:clamp(30px,6vw,70px);background:#0A1628;color:#A0AEC0;border-radius:28px}.manifesto-card h2{color:#fff;max-width:900px}.manifesto-card p{max-width:1000px}.manifesto-card .eyebrow{color:#7DA6FF}
.inner-hero{padding:64px 0;background:linear-gradient(180deg,#F8FAFD,#fff)}.inner-hero>.content-wrap{display:grid;grid-template-columns:1.2fr .8fr;gap:40px;align-items:center}.inner-hero .hero-media .hero-img,.inner-hero .hero-media .media-fallback{aspect-ratio:4/3}.inner-hero .hero-copy{max-width:820px}.article-layout{padding:34px 0 90px}.article-grid{display:grid;grid-template-columns:minmax(0,1fr) 330px;gap:48px;align-items:start}.article-main{min-width:0}.story-block{padding:30px 0;border-top:1px solid var(--border)}.story-block:first-child{border-top:0}.section-index{color:var(--blue);font-weight:900}.story-block h2{font-size:30px;margin:4px 0 12px;color:var(--ink)}.story-block p{font-size:17px;margin:0 0 14px;color:var(--muted)}.article-aside{position:sticky;top:calc(var(--nav-h) + 24px)}.aside-card{padding:24px;border-radius:18px;background:var(--bg-soft);border:1px solid var(--border)}.aside-card>span{color:var(--blue);font-weight:900}.aside-card h2{font-size:24px;line-height:1.25;margin:6px 0}.aside-card p{color:var(--muted)}.aside-card a{display:block;padding:10px 0;border-top:1px solid var(--border);color:var(--blue);font-weight:800}.faq-section{padding:24px 0 90px}.faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}.faq-item{border:1px solid var(--border);border-radius:14px;background:#fff;padding:0 18px}.faq-item summary{list-style:none;cursor:pointer;min-height:64px;display:flex;align-items:center;gap:12px;font-weight:900;color:var(--ink)}.faq-item summary::-webkit-details-marker{display:none}.faq-item summary span{color:var(--blue)}.faq-item p{margin:0 0 18px;color:var(--muted)}
.site-footer{background:#0A1628;color:#A0AEC0;padding:62px 0 calc(34px + env(safe-area-inset-bottom))}.footer-inner{width:min(calc(100% - 40px),var(--max));margin:auto}.footer-brand{display:grid;grid-template-columns:auto auto 1fr;align-items:center;gap:18px;padding-bottom:30px;border-bottom:1px solid rgba(255,255,255,.1)}.footer-logo-link{display:flex}.footer-logo{width:auto;height:34px;max-width:120px;object-fit:contain}.footer-brand .brand-text-logo{color:#fff}.footer-brand>div{display:grid}.footer-brand strong{font-size:24px;color:#fff}.footer-brand span{font-size:12px}.footer-brand p{margin:0;max-width:720px}.footer-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:26px;padding:34px 0}.footer-grid section{display:grid;align-content:start;gap:8px}.footer-grid h2{font-size:15px;color:#fff;margin:0 0 8px}.footer-grid a:hover{color:#fff}.footer-note{border-top:1px solid rgba(255,255,255,.1);padding-top:24px}.footer-bottom{display:flex;gap:20px;flex-wrap:wrap;padding-top:16px}.footer-bottom span{margin-right:auto}
.page-overlay{position:fixed;inset:0;background:rgba(10,22,40,.42);z-index:180;opacity:0;transition:opacity .18s ease;pointer-events:none}.page-overlay.is-visible{opacity:1;pointer-events:auto}.channel-drawer{position:fixed;z-index:200;top:0;right:0;width:min(460px,88vw);height:100dvh;background:#fff;transform:translateX(102%);visibility:hidden;pointer-events:none;transition:transform .22s ease,visibility .22s}.channel-drawer.is-open{transform:translateX(0);visibility:visible;pointer-events:auto}.drawer-head{height:72px;display:flex;align-items:center;justify-content:space-between;padding:0 20px;border-bottom:1px solid var(--border)}.drawer-brand{display:flex;align-items:center;gap:12px;color:var(--blue)}.drawer-logo{height:30px;width:auto;max-width:100px}.drawer-close,.search-close{width:44px;height:44px;border:0;border-radius:50%;background:var(--bg-sub);font-size:28px;color:var(--ink)}.drawer-scroll{height:calc(100dvh - 72px);overflow-y:auto;padding:18px 20px 34px}.drawer-scroll section{margin-bottom:24px}.drawer-scroll h2{font-size:14px;color:var(--light);margin:0 0 7px}.drawer-scroll a{display:grid;padding:12px 0;border-bottom:1px solid var(--border)}.drawer-scroll strong{color:var(--ink)}.drawer-scroll span{font-size:13px;color:var(--muted)}
.search-panel{position:fixed;z-index:205;left:0;right:0;top:var(--nav-h);background:#fff;border-bottom:1px solid var(--border);box-shadow:var(--shadow);max-height:calc(100dvh - var(--nav-h));overflow-y:auto;transform:translateY(-12px);opacity:0;visibility:hidden;pointer-events:none;transition:.18s ease}.search-panel.is-open{transform:none;opacity:1;visibility:visible;pointer-events:auto}.search-shell{width:min(calc(100% - 40px),980px);margin:auto;padding:28px 0 34px}.search-head{display:flex;justify-content:space-between;align-items:center}.search-head h2{font-size:32px;margin:0;color:var(--ink)}.search-shell label{display:block;font-weight:800;margin:16px 0 8px}.search-shell input{width:100%;height:54px;border:1px solid var(--border-strong);border-radius:14px;padding:0 16px;outline:none}.search-shell input:focus{box-shadow:0 0 0 3px rgba(0,82,204,.12)}.search-groups{display:grid;grid-template-columns:1fr 1fr;gap:24px}.search-groups h3{margin-bottom:8px}.tag-row{display:flex;flex-wrap:wrap;gap:8px}.tag-row button{border:1px solid var(--border);background:var(--bg-soft);padding:8px 12px;border-radius:999px}.search-links{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-top:24px}.search-links a{display:grid;padding:13px 14px;border:1px solid var(--border);border-radius:12px;font-weight:900}.search-links span{font-size:13px;color:var(--light);font-weight:500}.mobile-bottom-nav{display:none}
a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid rgba(0,82,204,.34);outline-offset:3px}
@media(max-width:1060px){.desktop-nav{gap:0}.desktop-nav a{padding:0 8px}.view-list{grid-template-columns:repeat(3,1fr)}.pill-grid{grid-template-columns:repeat(2,1fr)}.feature-primary{grid-template-columns:1fr}.rank-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:860px){:root{--nav-h:64px}.desktop-nav,.desktop-actions{display:none}.mobile-only{display:inline-flex}.nav-shell{width:calc(100% - 30px);height:var(--nav-h);justify-content:space-between;gap:8px}.brand-link{position:absolute;left:50%;transform:translateX(-50%)}.brand-logo{height:30px}.mobile-app-link{margin-left:auto}.content-wrap{width:calc(100% - 30px)}.home-hero{padding:34px 0}.hero-grid{display:flex;flex-direction:column}.home-copy{order:1}.hero-main-media{order:2;width:100%}.home-copy h1,.inner-hero h1{font-size:44px}.home-section{padding:56px 0}.pill-grid{grid-template-columns:1fr 1fr}.feature-grid,.two-col,.split-panels,.article-grid,.inner-hero>.content-wrap{grid-template-columns:1fr}.horizontal-track{display:flex;overflow-x:auto;scroll-snap-type:x proximity;padding-bottom:8px}.horizontal-track article{min-width:260px;scroll-snap-align:start}.timeline{grid-template-columns:1fr 1fr;gap:32px 14px}.timeline article{padding-right:12px}.view-list{grid-template-columns:1fr 1fr}.card-grid.three{grid-template-columns:1fr}.faq-grid{grid-template-columns:1fr}.article-aside{position:static}.footer-brand{grid-template-columns:auto 1fr}.footer-brand p{grid-column:1/3}.footer-grid{grid-template-columns:1fr 1fr}.site-footer{padding-bottom:calc(96px + env(safe-area-inset-bottom))}.mobile-bottom-nav{position:fixed;z-index:110;left:0;right:0;bottom:0;height:62px;padding-bottom:env(safe-area-inset-bottom);background:rgba(255,255,255,.98);border-top:1px solid var(--border);display:grid;grid-template-columns:repeat(5,1fr)}.mobile-bottom-nav a{min-height:56px;display:flex;align-items:center;justify-content:center;flex-direction:column;gap:1px;font-size:12px;color:var(--muted);font-weight:800}.mobile-bottom-nav a span{font-size:17px;line-height:1}.mobile-bottom-nav a.is-active{color:var(--blue)}.search-panel{top:0;height:100dvh;max-height:none}.search-shell{width:calc(100% - 30px);padding-top:18px}.search-groups,.search-links{grid-template-columns:1fr}.page-overlay{z-index:180}.channel-drawer{z-index:220}.mobile-bottom-nav{z-index:100}.section-head.split{align-items:flex-start;flex-direction:column}.article-layout{padding-bottom:70px}}
@media(max-width:560px){.home-copy h1,.inner-hero h1{font-size:38px}.home-copy p,.hero-lead{font-size:16px}.pill-grid{grid-template-columns:1fr}.feature-grid{gap:14px}.feature-primary{padding:14px}.feature-primary h3{font-size:25px}.rank-grid{grid-template-columns:1fr}.timeline{grid-template-columns:1fr}.timeline{border-top:0;padding-top:0}.timeline article{padding:0 0 0 24px;border-left:1px solid var(--border)}.timeline i{top:8px;left:-6px}.view-list{grid-template-columns:1fr}.mini-faq{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr 1fr;gap:22px 16px}.home-section{padding:48px 0}.section-head h2,.two-col h2,.split-panels h2,.card-grid h2,.manifesto-card h2{font-size:32px}.inner-hero{padding:44px 0}.story-block h2{font-size:26px}.story-block p{font-size:16px}.split-panels>article{padding:22px}.manifesto-card{padding:28px}.hero-actions>*{width:100%}.hero-mini-list a{padding-left:0;padding-right:0}.quick-scroll{padding-left:0;padding-right:0}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important;animation:none!important}}