*{box-sizing:border-box}html,body{margin:0;padding:0}
body{font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Segoe UI",sans-serif;font-size:16px;line-height:1.8;color:#2c3e50;background:#fafbfc}
.container{max-width:760px;margin:0 auto;padding:0 20px}
.container-wide{max-width:1080px;margin:0 auto;padding:0 24px}
header.site{background:#fff;border-bottom:1px solid #e6e8eb;padding:14px 0;margin-bottom:32px}
header.site .row{display:flex;align-items:center;justify-content:space-between;max-width:1080px;margin:0 auto;padding:0 24px}
header.site .brand{font-size:15px;font-weight:600;color:#1a5fb4;text-decoration:none}
header.site nav a{color:#555;text-decoration:none;font-size:14px;margin-left:18px}
header.site nav a:hover{color:#1a5fb4}
main{background:#fff;padding:40px 48px;border-radius:8px;box-shadow:0 1px 3px rgba(0,0,0,0.04);margin-bottom:32px}
.breadcrumbs{font-size:13px;color:#666;margin-bottom:18px}
.breadcrumbs a{color:#1a5fb4;text-decoration:none}
article h1{font-size:28px;font-weight:600;color:#1a5fb4;line-height:1.4;margin:0 0 24px;padding-bottom:14px;border-bottom:2px solid #1a5fb4}
article h2{font-size:20px;font-weight:600;color:#1a5fb4;line-height:1.5;margin:36px 0 14px;padding-left:14px;border-left:4px solid #1a5fb4}
article h3{font-size:17px;font-weight:600;color:#333;margin:24px 0 10px}
article p{margin:0 0 16px}
article ul,article ol{padding-left:28px;margin:0 0 16px}
article li{margin-bottom:8px}
article strong{color:#1a5fb4}
article blockquote{background:#f7f9fc;border-left:3px solid #1a5fb4;border-radius:4px;padding:14px 18px 4px;margin:0 0 18px;font-size:15px;color:#444}
article blockquote p{margin:0 0 12px}
article code{background:#f5f6f8;padding:2px 6px;border-radius:3px;font-size:0.92em;color:#c0392b}
.lede{background:#f0f7ff;padding:18px 22px;margin:0 0 28px;border-left:4px solid #1a5fb4;border-radius:2px}
.lede p:last-child{margin-bottom:0;font-size:14px;color:#666}
.byline{font-size:13px!important;color:#666}
.timestamp{font-size:13px;color:#888;font-style:italic;margin:24px 0 32px}
.author-card{background:#fafafa;padding:28px 30px;margin:0;border-top:3px solid #1a5fb4;border-radius:0 0 8px 8px}
.author-card h3{margin:0 0 6px;font-size:19px;color:#1a5fb4}
.author-card .meta{margin:0 0 18px;font-size:14px;color:#555;line-height:1.7}
.author-card h4{font-size:15px;color:#333;margin:0 0 10px}
.author-card ul{padding-left:22px;margin:0 0 16px;font-size:14px;color:#444;line-height:1.85}
.author-card .contact{margin:0;font-size:14px;color:#444}
.related{padding:24px 0 0;margin:28px 0 0;border-top:1px solid #eee}
.related h2{font-size:17px;font-weight:600;color:#1a5fb4;margin:0 0 12px}
.related .post-list li{margin-bottom:8px;padding-bottom:0;border-bottom:none}
.related .title a{color:#1a5fb4;text-decoration:none}
.related .title a:hover{text-decoration:underline}
.post-list{list-style:none;padding:0;margin:0}
.post-list li{margin-bottom:24px;padding-bottom:24px;border-bottom:1px solid #eee}
.post-list li:last-child{border-bottom:none}
.post-list .meta{font-size:13px;color:#888;margin:0 0 4px}
.post-list .title{font-size:18px;font-weight:600;margin:0 0 6px}
.post-list .title a{color:#1a5fb4;text-decoration:none}
.post-list .title a:hover{text-decoration:underline}
.post-list .summary{margin:0;font-size:14px;color:#555;line-height:1.7}
.cat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px;margin:24px 0 32px}
.cat-card{background:#fff;border:1px solid #e6e8eb;border-radius:6px;padding:16px;text-decoration:none;transition:border-color .15s}
.cat-card:hover{border-color:#1a5fb4}
.cat-card .cat-name{color:#1a5fb4;font-weight:600;font-size:15px;margin:0 0 4px}
.cat-card .cat-tagline{color:#666;font-size:13px;margin:0;line-height:1.6}
.cat-card .cat-count{color:#999;font-size:12px;margin-top:6px}
footer.site{padding:24px 0 40px;text-align:center;font-size:13px;color:#888}
/* ===== 首页专属 ===== */
body.home{background:#f4f6fa}
.hero{background:linear-gradient(135deg,#0b3d91 0%,#1a5fb4 55%,#2474c9 100%);color:#fff;padding:64px 0 72px;margin-bottom:48px;position:relative;overflow:hidden}
.hero::after{content:"";position:absolute;right:-80px;top:-80px;width:360px;height:360px;background:radial-gradient(circle,rgba(255,255,255,.08) 0%,transparent 70%);pointer-events:none}
.hero-inner{position:relative;z-index:1}
.hero .eyebrow{font-size:13px;letter-spacing:2px;opacity:.85;margin:0 0 14px;text-transform:uppercase}
.hero h1{font-size:38px;font-weight:700;line-height:1.3;margin:0 0 18px;letter-spacing:.5px}
.hero h1 .accent{color:#ffd166}
.hero .tagline{font-size:18px;line-height:1.7;margin:0 0 28px;opacity:.95;max-width:680px}
.hero .tagline strong{color:#ffd166;font-weight:600}
.hero .meta-row{display:flex;flex-wrap:wrap;gap:14px 24px;font-size:14px;opacity:.92;margin:0 0 26px}
.hero .meta-row span{display:inline-flex;align-items:center;gap:6px}
.hero .chips{display:flex;flex-wrap:wrap;gap:10px;margin:0 0 28px}
.hero .chip{background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.25);color:#fff;padding:6px 14px;border-radius:999px;font-size:13px}
.hero .cta-row{display:flex;flex-wrap:wrap;gap:12px}
.hero .btn{display:inline-block;padding:11px 22px;border-radius:6px;text-decoration:none;font-size:14px;font-weight:500;transition:transform .15s}
.hero .btn-primary{background:#ffd166;color:#0b3d91}
.hero .btn-secondary{background:rgba(255,255,255,.12);color:#fff;border:1px solid rgba(255,255,255,.4)}
.hero .btn:hover{transform:translateY(-1px)}
.section-title{font-size:22px;font-weight:600;color:#1a2a44;margin:0 0 22px;display:flex;align-items:baseline;justify-content:space-between}
.section-title .more{font-size:13px;font-weight:400;color:#1a5fb4;text-decoration:none}
.section-title .more:hover{text-decoration:underline}
.home-section{margin-bottom:56px}
.biz-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:18px}
.biz-card{position:relative;background:#fff;border:1px solid #e6e8eb;border-radius:10px;padding:24px 24px 22px 28px;text-decoration:none;color:inherit;transition:box-shadow .18s,transform .18s,border-color .18s;overflow:hidden}
.biz-card::before{content:"";position:absolute;left:0;top:0;bottom:0;width:5px;background:#1a5fb4}
.biz-card:hover{box-shadow:0 6px 18px rgba(26,95,180,.12);border-color:#c9d8ec;transform:translateY(-2px)}
.biz-card .biz-head{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;margin:0 0 10px}
.biz-card .biz-name{color:#1a2a44;font-weight:600;font-size:17px;margin:0;line-height:1.45;flex:1}
.biz-card .biz-badge{flex-shrink:0;background:#eef4fc;color:#1a5fb4;font-size:12px;font-weight:600;padding:3px 10px;border-radius:999px;line-height:1.6}
.biz-card .biz-badge.empty{background:#f4f5f7;color:#a0a4ac}
.biz-card .biz-tagline{color:#5a6271;font-size:13.5px;margin:0;line-height:1.7}
.biz-card .biz-arrow{color:#1a5fb4;font-size:13px;font-weight:500;margin-top:14px;display:inline-block}
.home-posts{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:20px}
.home-post{background:#fff;border:1px solid #e6e8eb;border-radius:10px;padding:22px 24px;text-decoration:none;color:inherit;transition:box-shadow .18s,border-color .18s}
.home-post:hover{box-shadow:0 6px 18px rgba(0,0,0,.06);border-color:#c9d8ec}
.home-post .post-cat{display:inline-block;font-size:12px;color:#1a5fb4;background:#eef4fc;padding:2px 10px;border-radius:4px;margin:0 0 10px;line-height:1.7}
.home-post .post-title{font-size:17px;font-weight:600;color:#1a2a44;margin:0 0 8px;line-height:1.5}
.home-post .post-summary{font-size:13.5px;color:#5a6271;margin:0 0 10px;line-height:1.7;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.home-post .post-date{font-size:12px;color:#94999f}
.home-empty{background:#fff;border:1px dashed #d9dde2;border-radius:10px;padding:32px;text-align:center;color:#888;font-size:14px}
@media(max-width:640px){main{padding:24px 18px}article h1{font-size:22px}article h2{font-size:17px}.author-card{padding:20px 18px}.hero{padding:42px 0 48px}.hero h1{font-size:26px}.hero .tagline{font-size:15px}}