header nav{max-width:1200px;padding:23px 30px;gap:18px}.site-nav-links{display:flex;flex-wrap:wrap;gap:12px 24px;font-size:14px}.site-nav-links a{white-space:nowrap}footer{flex-wrap:wrap}.breadcrumb{margin-bottom:26px}.card{border-left:1px solid var(--line);border-radius:8px}.card h2{font-size:30px}
.article-page{padding-top:34px}.article-heading{max-width:850px}.article-heading h1{font-size:clamp(30px,4.1vw,46px);letter-spacing:-.035em}.source-strip{border-top:1px solid var(--line)}.audio-featured{border-left:3px solid var(--audio-rule);background:var(--surface)}
.hero-feature{display:grid;grid-template-columns:190px 1fr;gap:26px;align-items:center;border:1px solid #d9cbb8;background:var(--panel);border-radius:12px;padding:22px;margin:24px 0 4px}.hero-feature img{display:block;width:100%;max-width:200px}.feature-copy small{font-size:11px;font-weight:750;letter-spacing:.1em;color:#806443}.feature-copy h2{font-size:23px;margin:7px 0;line-height:1.4}.feature-copy p{font-size:14px;margin:6px 0 15px;color:#766754}.feature-actions{display:flex;align-items:center;gap:18px;flex-wrap:wrap}.primary-link{display:inline-flex;align-items:center;justify-content:center;gap:10px;text-decoration:none;border-radius:5px;min-height:43px;padding:8px 18px;font-size:14px;font-weight:650;background:var(--accent);color:white;border:1px solid var(--accent)}.feature-actions>span{font-size:12px;color:#766754}
.card-media{display:flex;align-items:flex-start;gap:20px;flex-wrap:wrap;border-top:1px solid var(--line);margin-top:18px;padding-top:10px}.card-media .audio-compact{border:0;padding:0;margin:0;flex:1;min-width:170px}.card-animation{display:inline-flex;gap:10px;align-items:center;min-height:44px;color:var(--accent);font-size:14px;text-decoration:none;font-weight:650}.card-animation small{font-size:12px;font-weight:400;color:var(--muted)}.has-explainer{background:var(--surface)}.has-explainer .card-meta::after{content:"动画讲解";font-size:11px;color:#8d6128;border:1px solid #d7c6a6;border-radius:3px;padding:1px 6px;white-space:nowrap}.has-explainer .card-meta{justify-content:flex-start;align-items:center;flex-wrap:wrap}.has-explainer .card-meta span{margin-left:auto}
.explainer-page{max-width:1100px;margin:auto;padding:30px 30px 60px}.explainer-heading{display:flex;gap:26px;justify-content:space-between;align-items:flex-end;margin:25px 0}.explainer-heading h1{font-size:clamp(28px,3.4vw,40px);line-height:1.4;margin:8px 0 12px;max-width:690px}.explainer-heading p{font-size:14px;color:var(--muted);margin:0}.return-link{white-space:nowrap;align-self:center;color:var(--accent);font-size:14px}.animation-attribution{font-size:12px;color:var(--muted);margin:0 0 16px}.player-frame{display:block;border:0;width:100%;height:1100px;background:transparent}.player-shell{min-width:0;overflow-anchor:none}.after-player{display:flex;align-items:center;justify-content:space-between;gap:20px;background:var(--panel);border:1px solid #ded1bf;border-radius:10px;padding:23px;margin-top:22px}.after-player h2{font-size:21px;margin:0 0 7px}.after-player p{font-size:14px;margin:0;color:var(--muted)}
@media(max-width:650px){.article-page,.explainer-page{padding:25px 18px 45px}.hero-feature{grid-template-columns:90px 1fr;gap:15px;padding:18px 15px}.feature-copy h2{font-size:20px}.feature-copy p{font-size:12px}.feature-actions>span{display:none}.feature-actions .primary-link{font-size:13px;padding:7px 13px}.hero-feature img{width:90px}.card-media{gap:4px 12px}.card-animation{font-size:13px}.has-explainer .card-meta span{margin-left:0}.explainer-heading{display:block}.explainer-heading .return-link{display:inline-block;margin-top:13px}.after-player{display:block;padding:20px}.after-player a{margin-top:18px}}
@media(max-width:760px){header nav{align-items:flex-start;flex-direction:column;padding:20px;gap:14px}.site-nav-links{gap:8px 16px;font-size:13px}.card h2{font-size:25px}}