:root{--blue:#0033A0;--blue2:#0052CC;--blue3:#002066;--ink:#0A1628;--text:#1E2A3A;--muted:#4A5568;--soft:#F5F7FA;--soft2:#EEF1F6;--border:rgba(0,51,160,.14);--shadow:0 12px 36px rgba(0,33,102,.08);--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",sans-serif;color:var(--text);background:#fff;line-height:1.75;overflow-x:hidden}body.locked{overflow:hidden}a{color:inherit;text-decoration:none}button,input{font:inherit}.container{width:min(1280px,calc(100% - 40px));margin:auto}.site-header{position:sticky;top:0;z-index:1000;height:var(--nav-h);background:rgba(255,255,255,.96);backdrop-filter:blur(14px);border-bottom:1px solid var(--border)}.nav-shell{height:100%;width:min(1280px,calc(100% - 40px));margin:auto;display:flex;align-items:center;gap:22px}.brand{display:inline-flex;align-items:center;min-width:max-content}.brand-logo{display:block;max-height:38px;max-width:140px;width:auto;height:auto}.brand-text{font-size:30px;font-weight:900;letter-spacing:-1.5px;color:var(--blue)}.desktop-nav{display:flex;align-items:center;gap:6px;flex:1}.desktop-nav a,.text-btn{min-height:44px;display:inline-flex;align-items:center;padding:0 13px;border-radius:999px;color:var(--muted);font-weight:700;border:0;background:transparent;cursor:pointer}.desktop-nav a:hover,.desktop-nav a.active,.text-btn:hover{background:var(--soft2);color:var(--blue)}.nav-actions{display:flex;align-items:center;gap:6px;margin-left:auto}.primary-mini,.btn-primary{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:0 18px;border-radius:999px;background:linear-gradient(135deg,var(--blue2),var(--blue),var(--blue3));color:#fff;font-weight:800;box-shadow:0 10px 28px rgba(0,51,160,.16)}.btn-secondary{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:0 18px;border-radius:999px;border:1px solid rgba(0,51,160,.32);color:var(--blue);font-weight:800;background:#fff}.icon-btn{display:none;border:0;background:transparent;width:44px;height:44px;align-items:center;justify-content:center;flex-direction:column;gap:4px;cursor:pointer}.icon-btn span{width:20px;height:2px;background:var(--ink);display:block}main{min-height:60vh}.hero{padding:56px 0 28px}.hero-grid{display:grid;grid-template-columns:minmax(0,1.85fr) minmax(320px,1fr);gap:28px;align-items:stretch}.hero-media,.media-card{border-radius:18px;overflow:hidden;background:var(--soft2);min-height:420px;box-shadow:var(--shadow)}.media-img{width:100%;height:100%;object-fit:cover;display:block}.image-fallback{display:flex;align-items:center;justify-content:center;background:linear-gradient(145deg,#eef3ff,#fff 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14px;color:var(--blue);font-weight:700}.section{padding:52px 0}.section.soft{background:var(--soft)}.section-head{display:flex;justify-content:space-between;gap:20px;align-items:end;margin-bottom:24px}.section-head h2{font-size:clamp(28px,4vw,44px);line-height:1.2;margin:0;color:var(--ink)}.section-head p{max-width:620px;color:var(--muted);margin:0}.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}.grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}.card{border:1px solid var(--border);border-radius:14px;background:#fff;padding:22px;box-shadow:var(--shadow)}.card h3{margin:0 0 8px;color:var(--ink);font-size:21px}.card p{margin:0;color:var(--muted)}.card .num{font-size:38px;font-weight:900;color:rgba(0,51,160,.18);line-height:1}.pill{display:inline-flex;padding:6px 10px;border-radius:999px;background:var(--soft2);color:var(--blue);font-size:13px;font-weight:800;margin-bottom:12px}.page-hero{padding:70px 0 36px;background:linear-gradient(180deg,#fff,var(--soft));border-bottom:1px solid var(--border)}.page-hero .container{display:grid;grid-template-columns:minmax(0,1.3fr) minmax(280px,.7fr);gap:30px;align-items:center}.page-hero .visual{min-height:280px;border-radius:18px;overflow:hidden}.prose{font-size:17px}.prose h2{color:var(--ink);font-size:30px;line-height:1.25;margin:38px 0 14px}.prose h3{color:var(--ink);font-size:22px;margin:28px 0 10px}.prose p{margin:0 0 18px}.prose ul{padding-left:1.2em}.timeline{border-left:2px solid rgba(0,51,160,.22);padding-left:24px;display:grid;gap:18px}.timeline .item{position:relative}.timeline .item:before{content:"";position:absolute;left:-31px;top:9px;width:12px;height:12px;border-radius:50%;background:var(--blue)}.rank-list{display:grid;gap:12px}.rank{display:grid;grid-template-columns:70px 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img{max-height:34px;max-width:110px}.close-btn{width:44px;height:44px;border:0;background:var(--soft);border-radius:50%;cursor:pointer;font-size:28px;color:var(--ink)}.panel-scroll{height:calc(100dvh - 72px);overflow:auto;padding:18px}.panel-scroll section{margin-bottom:26px}.panel-scroll h3{margin:0 0 8px}.panel-scroll a{display:block;padding:12px;border-radius:10px}.panel-scroll a:hover{background:var(--soft)}.panel-scroll b,.panel-scroll span{display:block}.panel-scroll span{color:var(--muted);font-size:14px}.search-panel{position:fixed;z-index:1200;top:72px;left:0;right:0;background:#fff;border-bottom:1px solid var(--border);transform:translateY(-120%);visibility:hidden;pointer-events:none;transition:.25s;box-shadow:0 20px 50px rgba(0,0,0,.09)}.search-panel.show{transform:none;visibility:visible;pointer-events:auto}.search-inner{padding:30px 0 34px}.search-top{display:flex;justify-content:space-between;align-items:center}.search-inner input{width:100%;border:1px solid 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@media (max-width:900px){:root{--nav-h:64px}.container,.nav-shell{width:min(100% - 30px,1280px)}.site-header{height:64px}.desktop-nav,.desktop-only,.search-toggle{display:none}.icon-btn{display:flex}.nav-shell{justify-content:space-between;gap:8px}.brand{position:absolute;left:50%;transform:translateX(-50%)}.brand-logo{max-height:32px;max-width:106px}.brand-text{font-size:26px}.nav-actions{margin-left:auto}.hero{padding-top:28px}.hero-grid{grid-template-columns:1fr}.hero-copy{order:-1}.hero-media{min-height:260px}.page-hero{padding:44px 0 26px}.page-hero .container{grid-template-columns:1fr}.grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}.grid-3{grid-template-columns:1fr 1fr}.footer-grid{grid-template-columns:1fr 1fr}.search-panel{top:0;height:100dvh;overflow:auto}.mobile-bottom{position:fixed;z-index:900;left:0;right:0;bottom:0;display:grid;grid-template-columns:repeat(5,1fr);background:rgba(255,255,255,.97);border-top:1px solid var(--border);padding-bottom:env(safe-area-inset-bottom);box-shadow:0 -8px 28px rgba(0,33,102,.08)}.mobile-bottom a{min-height:52px;display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:700;color:var(--muted)}body{padding-bottom:calc(52px + env(safe-area-inset-bottom))}.site-footer{margin-bottom:0}.split-feature{grid-template-columns:1fr}}
@media (max-width:620px){.container,.nav-shell{width:calc(100% - 30px)}.hero h1,.page-hero h1{font-size:38px}.hero-copy{padding:24px}.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}.section{padding:38px 0}.section-head{align-items:start;flex-direction:column}.footer-grid{grid-template-columns:1fr}.rank{grid-template-columns:54px 1fr}.rank .n{font-size:34px}.actions>*{width:100%}.image-fallback{min-height:220px}}
@media (prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important;animation:none!important}}a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid rgba(0,82,204,.35);outline-offset:2px}