:root{
    --bg:#f6f7fb;
    --paper:#ffffff;
    --ink:#1f2430;
    --muted:#667085;
    --line:#e7eaf1;
    --brand:#e85d3f;
    --brand-dark:#b63b28;
    --soft:#fff1ed;
    --shadow:0 18px 45px rgba(31,36,48,.08);
}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;line-height:1.7}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.site-header{background:rgba(255,255,255,.96);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20;backdrop-filter:blur(12px)}
.topbar{max-width:1180px;margin:0 auto;padding:18px 20px 12px;display:flex;align-items:center;justify-content:space-between;gap:16px}
.logo{display:flex;align-items:center;gap:12px;font-weight:800}
.logo-mark{width:44px;height:44px;border-radius:16px;background:linear-gradient(135deg,var(--brand),#ffb199);color:#fff;display:grid;place-items:center;font-weight:900;box-shadow:0 12px 24px rgba(232,93,63,.24)}
.logo em{display:block;color:var(--muted);font-size:12px;font-style:normal;font-weight:500;margin-top:-4px}
.domain-pill{padding:8px 12px;border:1px solid var(--line);border-radius:999px;background:#fff;color:var(--muted);font-size:14px}
.main-nav{max-width:1180px;margin:0 auto;padding:0 20px 12px;display:flex;gap:8px;flex-wrap:wrap}
.main-nav a{padding:8px 12px;border-radius:999px;color:#344054;font-weight:700;font-size:14px}
.main-nav a:hover{background:var(--soft);color:var(--brand-dark)}
.search-strip{border-top:1px solid var(--line);background:#fff}
.search-strip form{max-width:1180px;margin:0 auto;padding:12px 20px;display:flex;gap:10px}
.search-strip input{flex:1;border:1px solid var(--line);border-radius:14px;padding:12px 14px;font-size:15px}
.search-strip button,.btn{border:0;border-radius:14px;background:var(--brand);color:#fff;padding:12px 18px;font-weight:800;cursor:pointer}
.search-notice{max-width:1180px;margin:-6px auto 12px;padding:0 20px;color:var(--brand-dark);font-size:14px}
main{max-width:1180px;margin:0 auto;padding:30px 20px 54px}
.hero{display:grid;grid-template-columns:1.25fr .75fr;gap:24px;align-items:stretch}
.hero-panel,.side-panel,.section-block,.article-page,.contact-card{background:var(--paper);border:1px solid var(--line);border-radius:30px;box-shadow:var(--shadow)}
.hero-panel{padding:34px;display:grid;grid-template-columns:1fr .9fr;gap:26px;align-items:center;overflow:hidden}
.eyebrow{color:var(--brand-dark);font-weight:900;letter-spacing:.02em;margin:0 0 8px}
h1{font-size:42px;line-height:1.18;margin:0 0 18px;letter-spacing:-.04em}
.hero p{color:var(--muted);margin:0 0 18px}
.hero-actions{display:flex;gap:10px;flex-wrap:wrap;margin:22px 0}
.btn.secondary{background:#111827;color:#fff}
.info-list{display:grid;gap:10px;margin-top:18px}
.info-list span{display:inline-flex;align-items:center;gap:8px;background:#f9fafb;border:1px solid var(--line);border-radius:14px;padding:8px 10px;color:#475467;font-weight:700}
.video-card{position:relative;border-radius:24px;overflow:hidden;background:#111827;display:block;min-height:180px}
.video-card img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease,filter .35s ease}
.play-button{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%) scale(.9);opacity:0;background:rgba(255,255,255,.94);color:var(--brand-dark);border-radius:999px;padding:12px 18px;font-weight:900;box-shadow:0 18px 35px rgba(0,0,0,.18);transition:all .25s ease}
.video-card:after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(0,0,0,0),rgba(0,0,0,.35));opacity:.45;transition:.25s}
.video-card:hover img{transform:scale(1.04);filter:saturate(1.06)}
.video-card:hover .play-button,.video-card:focus .play-button{opacity:1;transform:translate(-50%,-50%) scale(1)}
.side-panel{padding:24px;display:grid;gap:18px}
.stat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.stat{background:#f9fafb;border:1px solid var(--line);padding:14px;border-radius:18px;text-align:center}
.stat strong{display:block;font-size:20px;color:var(--brand-dark)}
.section-block{margin-top:24px;padding:28px}
.section-head{display:flex;justify-content:space-between;gap:16px;align-items:end;margin-bottom:18px}
.section-head h2{font-size:28px;margin:0;letter-spacing:-.03em}
.section-head p{margin:4px 0 0;color:var(--muted)}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.article-card{display:grid;grid-template-columns:220px 1fr;gap:16px;border:1px solid var(--line);border-radius:24px;padding:14px;background:#fff}
.article-card.compact{grid-template-columns:150px 1fr}
.article-card .thumb{min-height:148px;border-radius:18px}
.article-card h3{font-size:20px;line-height:1.35;margin:0 0 8px}
.article-card p{margin:0 0 10px;color:var(--muted)}
.meta-row{display:flex;gap:10px;flex-wrap:wrap;color:#475467;font-size:13px;font-weight:700}
.tag-row{display:flex;gap:8px;flex-wrap:wrap;margin-top:10px}
.tag-row span{background:var(--soft);color:var(--brand-dark);font-size:12px;border-radius:999px;padding:4px 8px;font-weight:800}
.topic-card,.author-card,.faq-item,.comment-card{border:1px solid var(--line);border-radius:22px;padding:18px;background:#fff}
.topic-card h3,.author-card h3{margin:0 0 8px}
.topic-card p,.author-card p,.faq-item p,.comment-card p{margin:0;color:var(--muted)}
.author-card img{width:66px;height:66px;border-radius:22px;object-fit:cover;margin-bottom:12px}
.faq-item h3{font-size:17px;margin:0 0 8px}
.comment-card strong{display:flex;justify-content:space-between;gap:8px;margin-bottom:6px}
.breadcrumbs{display:flex;gap:8px;flex-wrap:wrap;color:var(--muted);font-size:14px;margin-bottom:18px}
.breadcrumbs a{color:var(--brand-dark);font-weight:800}
.article-page{padding:34px;max-width:880px;margin:0 auto}
.article-page h1{font-size:36px}
.article-meta{display:flex;gap:12px;flex-wrap:wrap;color:var(--muted);border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:12px 0;margin:18px 0}
.article-cover{margin:22px 0;border-radius:26px;overflow:hidden}
.article-cover figcaption{font-size:13px;color:var(--muted);padding:10px 4px}
.article-content p{font-size:17px;margin:0 0 18px}
.related-list{display:grid;gap:12px;margin-top:24px}
.page-title{background:#fff;border:1px solid var(--line);border-radius:28px;padding:30px;box-shadow:var(--shadow);margin-bottom:24px}
.page-title h1{margin-bottom:10px}
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.contact-card{padding:24px}
.site-footer{background:#111827;color:#d1d5db;padding:36px 20px}
.footer-grid{max-width:1180px;margin:0 auto;display:grid;grid-template-columns:1.4fr .8fr .8fr;gap:26px}
.footer-grid a{display:block;color:#f9fafb;margin:6px 0}
.footer-logo{margin-bottom:12px}.footer-logo .logo-mark{box-shadow:none}
.footer-grid p{color:#aab2c0;margin:0 0 8px}
@media (max-width:900px){
    .hero,.hero-panel,.grid-3,.grid-2,.contact-grid,.footer-grid{grid-template-columns:1fr}
    h1{font-size:32px}.topbar{align-items:flex-start;flex-direction:column}.domain-pill{width:100%}
    .article-card,.article-card.compact{grid-template-columns:1fr}.article-card .thumb{min-height:220px}
}
@media (max-width:560px){
    main{padding:20px 14px 40px}.hero-panel,.section-block,.article-page,.page-title{padding:22px;border-radius:22px}
    .search-strip form{flex-direction:column}.stat-grid{grid-template-columns:1fr}.main-nav{overflow-x:auto;flex-wrap:nowrap}.main-nav a{white-space:nowrap}
}