.ad-page{padding:100px 0 80px;background:var(--surface)}.ad-layout{display:grid;grid-template-columns:1fr 320px;gap:48px;align-items:start}@media(max-width:900px){.ad-layout{grid-template-columns:1fr}}.ad-crumb{display:flex;align-items:center;gap:6px;font-size:13px;color:var(--text-muted);margin-bottom:24px;flex-wrap:wrap}.ad-crumb a{color:var(--brand)}.ad-crumb a:hover{color:var(--brand-hover)}.ad-crumb svg{width:12px;height:12px;color:var(--text-subtle)}.ad-title{font-size:clamp(28px,3.8vw,40px);line-height:1.15;font-weight:800;margin-bottom:16px;letter-spacing:-.035em;color:var(--ink)}.ad-meta{display:flex;align-items:center;gap:14px;font-size:13px;color:var(--text-muted);margin-bottom:28px;flex-wrap:wrap}.ad-meta-author{display:inline-flex;align-items:center;gap:8px;text-decoration:none;color:var(--text-secondary);font-weight:500;transition:color var(--dur)}.ad-meta-author:hover{color:var(--brand)}.ad-meta-author img,.ad-meta-author-avatar,.ad-meta-author-logo{width:32px;height:32px;border-radius:50%;flex-shrink:0}.ad-meta-author img{object-fit:cover}.ad-meta-author-avatar{background:var(--brand);color:#fff;display:inline-flex;align-items:center;justify-content:center;font-size:13px;font-weight:600}.ad-meta-author-logo{background:var(--slate-900);display:inline-flex;align-items:center;justify-content:center}.ad-meta-author-logo svg{width:60%;height:60%}.ad-meta-dot{width:3px;height:3px;border-radius:50%;background:var(--slate-300)}.ad-cover{width:100%;border-radius:var(--r-xl);object-fit:cover;max-height:440px;margin-bottom:36px;box-shadow:var(--shadow-md)}.ad-body{font-size:16px;line-height:1.75;color:var(--text)}.ad-body h2{font-size:24px;font-weight:700;margin:36px 0 14px;color:var(--ink);letter-spacing:-.025em}.ad-body h3{font-size:19px;font-weight:600;margin:28px 0 12px;color:var(--ink);letter-spacing:-.02em}.ad-body p{margin-bottom:18px}.ad-body ul,.ad-body ol{margin:0 0 18px 22px}.ad-body li{margin-bottom:6px}.ad-body blockquote{border-left:3px solid var(--brand);padding:14px 20px;margin:24px 0;background:var(--brand-tint);border-radius:0 var(--r) var(--r) 0;font-style:italic;color:var(--text-secondary)}.ad-body a{color:var(--brand);text-decoration:underline}.ad-body strong{color:var(--ink)}.ad-side{position:sticky;top:96px;display:flex;flex-direction:column;gap:16px}.ad-author-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--r-lg);padding:22px}.ad-author-img{width:72px;height:72px;border-radius:var(--r-lg);object-fit:cover;background:var(--slate-100);margin-bottom:12px}.ad-author-ph{width:72px;height:72px;border-radius:var(--r-lg);background:linear-gradient(135deg,var(--slate-200),var(--slate-300));display:flex;align-items:center;justify-content:center;color:var(--text-subtle);margin-bottom:12px}.ad-author-logo{width:72px;height:72px;border-radius:var(--r-lg);background:var(--slate-900);display:flex;align-items:center;justify-content:center;margin-bottom:12px}.ad-author-logo svg{width:56%;height:56%}.ad-author-name{font-size:17px;font-weight:700;margin-bottom:4px;letter-spacing:-.02em;color:var(--text)}.ad-author-title{font-size:12.5px;color:var(--text-muted);margin-bottom:12px}.ad-author-spec{font-size:13px;color:var(--text-secondary);margin-bottom:16px;line-height:1.5}.ad-author-btn{display:block;text-align:center;padding:10px 16px;border-radius:var(--r);background:var(--brand);color:#fff;font-weight:600;font-size:13px;text-decoration:none;transition:all var(--dur);box-shadow:var(--shadow-brand)}.ad-author-btn:hover{transform:translateY(-1px);background:var(--brand-hover);box-shadow:var(--shadow-brand-lg)}.ad-other-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--r-lg);padding:20px}.ad-other-title{font-size:14px;font-weight:700;margin-bottom:14px;color:var(--text);letter-spacing:-.01em}.ad-other-item{display:block;padding:12px 0;border-bottom:1px solid var(--border);text-decoration:none;transition:color var(--dur)}.ad-other-item:last-child{border-bottom:none;padding-bottom:0}.ad-other-item-title{font-size:13.5px;font-weight:500;color:var(--text);margin-bottom:3px;line-height:1.4}.ad-other-item:hover .ad-other-item-title{color:var(--brand)}.ad-other-item-date{font-size:11.5px;color:var(--text-muted)}.ad-related{padding:64px 0 72px;background:var(--surface-alt);border-top:1px solid var(--border)}.ad-rel-head{display:flex;align-items:baseline;justify-content:space-between;gap:16px;margin-bottom:28px;flex-wrap:wrap}.ad-rel-head h2{font-size:22px;font-weight:700;color:var(--ink);margin:0;letter-spacing:-.025em}.ad-rel-head a{font-size:13px;font-weight:600;color:var(--brand);text-decoration:none;display:flex;align-items:center;gap:4px;transition:gap var(--dur)}.ad-rel-head a:hover{gap:6px}.ad-rel-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}@media(max-width:960px){.ad-rel-grid{grid-template-columns:repeat(2,1fr)}}@media(max-width:540px){.ad-rel-grid{grid-template-columns:1fr}}.ad-rel{background:var(--surface);border:1px solid var(--border);border-radius:var(--r-lg);overflow:hidden;text-decoration:none;color:inherit;display:flex;flex-direction:column;transition:transform var(--dur) var(--ease),border-color var(--dur),box-shadow var(--dur)}.ad-rel:hover{transform:translateY(-3px);border-color:var(--brand-tint-strong);box-shadow:var(--shadow-md)}.ad-rel-img{aspect-ratio:16/9;overflow:hidden;background:var(--slate-100);position:relative}.ad-rel-img img{width:100%;height:100%;object-fit:cover;transition:transform var(--dur-slow) ease}.ad-rel:hover .ad-rel-img img{transform:scale(1.04)}.ad-rel-img-ph{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;color:var(--text-subtle)}.ad-rel-body{padding:14px 16px 16px;flex:1;display:flex;flex-direction:column}.ad-rel-title{font-size:14px;font-weight:600;line-height:1.35;color:var(--text);margin-bottom:10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.ad-rel:hover .ad-rel-title{color:var(--brand)}.ad-rel-footer{display:flex;align-items:center;gap:7px;margin-top:auto;padding-top:10px;border-top:1px solid var(--border)}.ad-rel-avatar,.ad-rel-avatar img{width:24px;height:24px;border-radius:50%}.ad-rel-avatar img{object-fit:cover}.ad-rel-avatar-ph{width:24px;height:24px;border-radius:50%;background:var(--brand);color:#fff;display:flex;align-items:center;justify-content:center;font-size:10px;font-weight:600;flex-shrink:0}.ad-rel-author{font-size:11.5px;font-weight:500;color:var(--text-secondary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;flex:1}.ad-rel-date{font-size:11px;color:var(--text-muted);white-space:nowrap;flex-shrink:0}.ad-topic{padding:64px 0 88px;background:var(--surface);border-top:1px solid var(--border)}.ad-topic-head{text-align:center;max-width:680px;margin:0 auto 32px}.ad-topic-head h2{font-size:clamp(22px,2.8vw,28px);font-weight:700;color:var(--ink);margin:8px 0 8px;letter-spacing:-.025em}.ad-topic-head p{font-size:14px;color:var(--text-secondary);margin:0}.ad-topic-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-bottom:24px}@media(max-width:960px){.ad-topic-grid{grid-template-columns:repeat(2,1fr)}}@media(max-width:540px){.ad-topic-grid{grid-template-columns:1fr}}.ad-topic-card{display:flex;align-items:center;gap:14px;padding:14px 16px;background:var(--surface);border:1px solid var(--border);border-radius:var(--r-lg);text-decoration:none;color:inherit;transition:all var(--dur) var(--ease)}.ad-topic-card:hover{transform:translateY(-2px);border-color:var(--brand-tint-strong);box-shadow:var(--shadow-sm)}.ad-topic-card img,.ad-topic-card-ph{width:52px;height:52px;border-radius:50%;flex-shrink:0}.ad-topic-card img{object-fit:cover}.ad-topic-card-ph{background:var(--brand);color:#fff;display:flex;align-items:center;justify-content:center;font-size:18px;font-weight:600}.ad-topic-card-body{min-width:0;flex:1}.ad-topic-card-name{font-size:14.5px;font-weight:600;color:var(--text);margin:0 0 2px;letter-spacing:-.01em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.ad-topic-card-spec{font-size:12px;color:var(--text-muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.ad-topic-footer{text-align:center}.ad-topic-all{display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:600;color:var(--brand);text-decoration:none;transition:gap var(--dur)}.ad-topic-all:hover{gap:8px}.ad-topic-all svg{width:13px;height:13px}