:root{--color-text:#1e2430;--color-muted:#5c6270;--color-navy:#1b3a6b;--color-navy-dark:#0f2648;--color-red:#b23a2e;--color-bg:#faf7f0;--color-soft:#f1ebdd;--color-line:#e3dcca;--color-line-strong:#cfc5ae;--color-hero:#3e4a5c;--font-serif:"Noto Serif SC", "Songti SC", serif;--font-sans:"Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;--wrap:75rem}*{box-sizing:border-box}body{font-family:var(--font-sans);color:var(--color-text);background:var(--color-bg);margin:0;line-height:1.8}a{color:var(--color-navy)}a:hover{color:var(--color-navy-dark)}h1,h2,h3{font-family:var(--font-serif);color:var(--color-navy);text-wrap:balance;font-weight:900;line-height:1.4}p,li{text-wrap:pretty}img{max-width:100%;height:auto}.wrap{max-width:var(--wrap);margin:0 auto;padding:0 1.5rem}.draft-banner{background:var(--color-red);color:#fff;text-align:center;padding:.5rem 1rem;font-size:.875rem}.site-header{border-bottom:1px solid var(--color-line)}.header-inner{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:.75rem 2rem;min-height:5.25rem;padding-block:.625rem;display:flex}.brand{color:inherit;align-items:center;gap:.875rem;text-decoration:none;display:flex}.brand-zh{font-family:var(--font-serif);letter-spacing:2px;color:var(--color-navy);font-size:1.375rem;font-weight:900;line-height:1.4;display:block}.brand-en{color:var(--color-muted);font-size:.75rem;line-height:1.4;display:block}@media (width<=30rem){.brand-en{font-size:.6875rem}}.site-header ul{flex-wrap:wrap;align-items:center;gap:.5rem 1.625rem;margin:0;padding:0;list-style:none;display:flex}.site-header nav a{color:var(--color-text);font-size:.9375rem;text-decoration:none}.site-header nav a:hover,.site-header nav a[aria-current=page]{color:var(--color-navy)}.site-header nav a[aria-current=page]{font-weight:700}.site-header nav .lang-switch{color:var(--color-muted)}main.wrap{padding-block:3rem 5rem}main h1{margin:0 0 1.5rem;font-size:2.25rem}main h2{margin:2.5rem 0 1rem;font-size:1.625rem}.eyebrow{letter-spacing:3px;color:var(--color-red);font-size:.8125rem;font-weight:700}.muted{color:var(--color-muted)}.placeholder{color:var(--color-muted);background:var(--color-soft);border:1px dashed var(--color-line-strong);padding:.75rem 1rem}.btn{padding:.875rem 1.75rem;font-size:1rem;font-weight:700;text-decoration:none;display:inline-block}.btn-red{background:var(--color-red);color:#fff}.btn-red:hover{color:#fff;background:#922e24}.btn-light{background:var(--color-bg);color:var(--color-navy)}.link-arrow{border-bottom:1px solid;padding-bottom:2px;font-weight:500;text-decoration:none}.cards{grid-template-columns:repeat(auto-fill,minmax(17rem,1fr));gap:1.5rem;padding:0;list-style:none;display:grid}.card{border:1px solid var(--color-line);background:#fff;padding:1.25rem 1.5rem}.card h3{margin-top:0;font-size:1.25rem}.subnav{border-bottom:1px solid var(--color-line);flex-wrap:wrap;gap:.5rem 1.5rem;margin:0 0 2rem;padding:0 0 .75rem;list-style:none;display:flex}.subnav a{color:var(--color-text);text-decoration:none}.subnav a[aria-current=page]{color:var(--color-red);font-weight:700}.timeline{border-left:2px solid var(--color-line-strong);padding:0;list-style:none}.timeline li{padding:0 0 1.25rem 1.5rem;position:relative}.timeline li:before{content:"";background:var(--color-red);width:10px;height:10px;position:absolute;top:.55rem;left:-6px}.timeline time{font-family:var(--font-serif);color:var(--color-navy);font-weight:700;display:block}table{border-collapse:collapse;width:100%}th,td{text-align:left;vertical-align:top;border-bottom:1px solid var(--color-line);padding:.4rem .6rem}th{white-space:nowrap;width:8rem}details{border:1px solid var(--color-line);background:#fff;margin-bottom:.5rem;padding:.5rem 1rem}summary{cursor:pointer;color:var(--color-navy);font-weight:700}.site-footer{background:var(--color-navy);color:#d9dee7;padding-block:3rem;font-size:.875rem;line-height:1.9}.site-footer a{color:#fff}.footer-inner{flex-wrap:wrap;justify-content:space-between;gap:1.5rem 4rem;display:flex}.footer-inner p{margin:0}.footer-title{font-family:var(--font-serif);color:#fff;letter-spacing:2px;font-size:1.1875rem;font-weight:900}.footer-label{color:#fff;font-weight:700}