:root{
  --blue:#0b559f;
  --blue-dark:#123451;
  --red:#c91f2b;
  --ink:#161c22;
  --muted:#68747d;
  --line:#d5dce1;
  --soft:#f4f6f8;
  --white:#fff;
  --max:1240px;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:#fff;color:var(--ink);font-family:"Noto Sans SC","Microsoft YaHei",sans-serif;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
button,input{font:inherit}
.shell{width:min(var(--max),calc(100% - 48px));margin:0 auto}
.eyebrow{margin:0;color:var(--red);font-size:11px;font-weight:800;letter-spacing:.1em}
.text-link{display:inline-block;padding-bottom:4px;border-bottom:2px solid var(--red);font-size:12px;font-weight:800}

.utility{height:34px;background:var(--blue);color:#fff;font-size:11px}
.utility .shell{height:100%;display:flex;align-items:center;justify-content:space-between}
.utility-links{display:flex;gap:20px;opacity:.9}
.masthead{height:96px;position:relative;display:flex;align-items:center;justify-content:center;border-bottom:1px solid var(--line)}
.brand{text-align:center}.brand strong{display:block;font:700 42px/1 Georgia,"Times New Roman",serif;letter-spacing:-.025em;color:#102b43}.brand small{display:block;margin-top:8px;color:#74808a;font-size:10px;letter-spacing:.38em}
.head-actions{position:absolute;right:0;display:flex;align-items:center;gap:10px}.head-actions a{padding:10px 15px;border:1px solid #87919a;font-size:12px}.head-actions .primary-action{background:var(--red);border-color:var(--red);color:#fff;font-weight:700}
.site-nav{height:48px;border-bottom:1px solid var(--line)}.site-nav .shell{height:100%;display:flex;align-items:center;justify-content:center;gap:31px}.site-nav a{font-size:13px;font-weight:700;white-space:nowrap}.site-nav a.active{color:var(--red)}
.topic-strip{background:var(--soft);border-bottom:1px solid var(--line)}.topic-strip .shell{height:43px;display:grid;grid-template-columns:repeat(5,1fr);align-items:center}.topic-strip span{padding:0 17px;border-right:1px solid var(--line);font-size:11px;color:#3c4851}.topic-strip span:first-child{padding-left:0}.topic-strip b{margin-left:8px;color:var(--blue);font-weight:800}

.page-hero{padding:43px 0 32px;border-bottom:1px solid var(--line)}
.breadcrumb{margin-bottom:22px;color:var(--muted);font-size:11px}.breadcrumb a:hover{color:var(--blue)}
.hero-grid{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:65px;align-items:end}
.page-hero h1{max-width:780px;margin:10px 0 12px;font:700 40px/1.2 "Noto Serif SC","Songti SC",serif;letter-spacing:-.025em}.page-hero p{max-width:760px;margin:0;color:#52606a;font-size:14px;line-height:1.85}
.hero-note{padding:20px 22px;border-left:3px solid var(--red);background:var(--soft)}.hero-note strong{display:block;font-size:14px}.hero-note span{display:block;margin-top:8px;color:var(--muted);font-size:11px;line-height:1.7}
.page-layout{display:grid;grid-template-columns:220px minmax(0,1fr);gap:48px;padding:34px 0 62px}
.side-nav{align-self:start;border-top:3px solid var(--blue-dark)}.side-nav a{display:block;padding:14px 3px;border-bottom:1px solid var(--line);color:#56626b;font-size:12px}.side-nav a.active,.side-nav a:hover{color:var(--red);font-weight:800}
.content-block{margin-bottom:38px}.section-head{display:flex;align-items:end;justify-content:space-between;gap:24px;margin-bottom:16px;padding-bottom:10px;border-bottom:2px solid #232b31}.section-head h2{margin:0;font:700 21px/1.3 "Noto Serif SC","Songti SC",serif}.section-head p{margin:0;color:var(--muted);font-size:10px}
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.info-card{display:block;min-height:174px;padding:20px;border:1px solid var(--line);background:#fff;transition:.18s ease}.info-card:hover{border-color:#8296a8;transform:translateY(-2px)}.info-card .index{color:var(--blue);font:700 20px Georgia,serif}.info-card h3{margin:24px 0 8px;font:700 17px/1.4 "Noto Serif SC","Songti SC",serif}.info-card p{margin:0;color:var(--muted);font-size:11px;line-height:1.7}.info-card .meta{display:block;margin-top:16px;color:var(--red);font-size:10px;font-weight:800}
.feature-list{border-top:1px solid var(--line)}.feature-row{display:grid;grid-template-columns:80px minmax(0,1fr) auto;gap:20px;align-items:center;padding:18px 0;border-bottom:1px solid var(--line)}.feature-row>strong{color:var(--blue);font:700 23px Georgia,serif}.feature-row h3{margin:0 0 5px;font-size:15px}.feature-row p{margin:0;color:var(--muted);font-size:11px}.feature-row a{font-size:11px;font-weight:800;border-bottom:1px solid var(--red)}
.detail-head{display:grid;grid-template-columns:minmax(0,1fr) 260px;gap:42px;padding:36px 0;border-bottom:3px double #1c252b}.detail-head h1{margin:10px 0 15px;font:700 36px/1.25 "Noto Serif SC","Songti SC",serif}.detail-head .summary{margin:0;color:#52606a;font-size:14px;line-height:1.85}.detail-meta{padding:20px;background:var(--soft)}.detail-meta div{padding:10px 0;border-bottom:1px solid var(--line)}.detail-meta div:last-child{border:0}.detail-meta span{display:block;color:var(--muted);font-size:9px}.detail-meta strong{display:block;margin-top:4px;font-size:12px}
.detail-body{display:grid;grid-template-columns:minmax(0,1fr) 280px;gap:48px;padding:34px 0 62px}.article h2{margin:34px 0 12px;padding-bottom:9px;border-bottom:2px solid #252d32;font:700 20px "Noto Serif SC",serif}.article h2:first-child{margin-top:0}.article p,.article li{color:#4f5a62;font-size:13px;line-height:1.85}.article ul{padding-left:20px}.detail-aside{align-self:start;padding:22px;border-top:3px solid var(--red);background:var(--soft)}.detail-aside h3{margin:0 0 12px;font-size:15px}.detail-aside p{color:var(--muted);font-size:11px;line-height:1.7}.detail-aside a{display:block;margin-top:18px;padding:11px 13px;background:var(--blue-dark);color:#fff;text-align:center;font-size:11px;font-weight:800}

.market-search{display:flex;align-items:end;justify-content:space-between;gap:22px;margin:0 0 20px;padding:17px 18px;background:var(--soft);border-left:3px solid var(--blue)}.market-search label{font-size:12px;font-weight:800}.market-search>div{display:flex;flex:1;max-width:560px}.market-search input{width:100%;height:40px;padding:0 13px;border:1px solid #aeb8c0;background:#fff;outline:none}.market-search input:focus{border-color:var(--blue)}.market-search button{height:40px;padding:0 24px;border:0;background:var(--blue-dark);color:#fff;font-size:12px;font-weight:800;cursor:pointer}.market-status{margin:14px 0 0;color:var(--muted);font-size:11px}

.account-main{padding:54px 0 72px;background:linear-gradient(90deg,#f4f6f8 0 39%,#fff 39%)}.account-layout{display:grid;grid-template-columns:minmax(0,1fr) 430px;gap:95px;align-items:start}.account-intro{padding:24px 0}.account-intro h1{margin:12px 0 18px;font:700 38px/1.25 "Noto Serif SC","Songti SC",serif}.account-intro>p:not(.eyebrow){max-width:610px;color:#53616b;font-size:14px;line-height:1.9}.account-intro dl{max-width:620px;margin:36px 0 0;border-top:1px solid var(--line)}.account-intro dl div{display:grid;grid-template-columns:110px 1fr;gap:25px;padding:17px 0;border-bottom:1px solid var(--line)}.account-intro dt{font-size:12px;font-weight:800}.account-intro dd{margin:0;color:var(--muted);font-size:11px;line-height:1.7}.account-panel{min-height:470px;padding:30px;border-top:4px solid var(--blue-dark);background:#fff;box-shadow:0 14px 34px rgba(18,52,81,.12)}.account-tabs{display:grid;grid-template-columns:1fr 1fr;margin-bottom:24px;border-bottom:1px solid var(--line)}.account-tabs button{padding:0 0 13px;border:0;border-bottom:3px solid transparent;background:transparent;color:var(--muted);font-size:13px;font-weight:800;cursor:pointer}.account-tabs button.active{border-color:var(--red);color:var(--ink)}.account-form{display:grid;gap:16px}.account-form[hidden]{display:none}.account-form label{display:grid;gap:7px;color:#303941;font-size:11px;font-weight:800}.account-form input,.account-form select{width:100%;height:42px;padding:0 12px;border:1px solid #b8c1c8;background:#fff;outline:none}.account-form input:focus,.account-form select:focus{border-color:var(--blue)}.account-form small{color:var(--muted);font-size:9px;font-weight:400}.account-submit,.account-current button{margin-top:5px;padding:13px 18px;border:0;background:var(--blue-dark);color:#fff;font-size:12px;font-weight:800;cursor:pointer}.account-message{min-height:18px;margin:18px 0 0;color:var(--muted);font-size:11px}.account-message.error{color:var(--red)}.account-message.success{color:#315f42}.account-current h2{margin:12px 0;font:700 28px/1.3 "Noto Serif SC","Songti SC",serif}.account-current>p:not(.eyebrow){color:var(--muted);font-size:12px;line-height:1.8}.account-current button{margin-top:24px}
.verification-box{margin:22px 0;padding:18px;border-left:3px solid var(--red);background:var(--soft)}.verification-box>button{margin:0}.verification-box form{display:flex;align-items:end;gap:10px;margin-top:16px}.verification-box form[hidden]{display:none}.verification-box label{display:grid;flex:1;gap:7px;color:#303941;font-size:11px;font-weight:800}.verification-box input{width:100%;height:42px;padding:0 12px;border:1px solid #b8c1c8;background:#fff;font-size:18px;letter-spacing:.25em}.verification-box form button{margin:0;white-space:nowrap}.verification-box p{margin:10px 0 0;color:var(--muted);font-size:10px}

.site-footer{background:#111820;color:#c9d0d5;padding:27px 0}.footer-grid{display:flex;justify-content:space-between;gap:30px}.footer-brand strong{color:#fff;font:700 23px Georgia,serif}.footer-brand p{font-size:11px}.footer-links{display:flex;gap:24px;font-size:11px}

@media(max-width:900px){.head-actions{display:none}.site-nav .shell{justify-content:flex-start;overflow:auto}.hero-grid,.detail-head{grid-template-columns:1fr}.page-layout,.detail-body{grid-template-columns:1fr}.side-nav{display:flex;overflow:auto}.side-nav a{padding:12px;white-space:nowrap}.card-grid{grid-template-columns:1fr 1fr}.topic-strip .shell{grid-template-columns:repeat(3,1fr)}.topic-strip span:nth-child(n+4){display:none}.account-main{background:var(--soft)}.account-layout{grid-template-columns:1fr;gap:30px}.account-panel{max-width:560px;width:100%}}
@media(max-width:640px){.shell{width:min(100% - 28px,var(--max))}.utility-links{display:none}.masthead{height:78px;justify-content:flex-start}.brand{text-align:left}.brand strong{font-size:30px}.brand small{font-size:8px}.site-nav .shell{gap:22px}.topic-strip .shell{grid-template-columns:1fr 1fr}.topic-strip span:nth-child(n+3){display:none}.page-hero{padding-top:28px}.page-hero h1,.detail-head h1,.account-intro h1{font-size:30px}.card-grid{grid-template-columns:1fr}.feature-row{grid-template-columns:54px 1fr}.feature-row a{grid-column:2}.market-search{align-items:stretch;flex-direction:column}.account-main{padding-top:28px}.account-panel{padding:22px}.account-intro dl div{grid-template-columns:1fr;gap:6px}.footer-grid{flex-direction:column}.footer-links{flex-wrap:wrap}}