:root{--primary: #2563eb;--primary-dark: #1e40af;--accent: #f97316;--surface: #f8fafc;--surface-alt: #f1f5f9;--text: #0f172a;--muted: #64748b;--muted-dark: #475569;--border: #e2e8f0;--shadow: 0 12px 30px rgba(15, 23, 42, .08);--radius-lg: 20px;--radius-md: 14px;--container-width: 1400px}*{box-sizing:border-box}body{margin:0;font-family:Inter,Segoe UI,Microsoft YaHei,sans-serif;background:var(--surface);color:var(--text);line-height:1.6}img{max-width:100%;display:block}a{color:inherit;text-decoration:none}button,input,textarea{font-family:inherit}.container{width:min(1400px,100%);margin:0 auto;padding:0 24px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;padding:.7rem 1.4rem;border-radius:999px;border:none;cursor:pointer;font-weight:600;transition:transform .2s ease,box-shadow .2s ease}.btn.primary{background:var(--primary);color:#fff;box-shadow:0 10px 20px #2563eb33}.btn.primary:hover{transform:translateY(-1px)}.text-link{color:var(--primary);font-weight:600}[v-cloak]{display:none}.classify-page{background:var(--surface);min-height:100vh}.classify-hero{background:radial-gradient(circle at top right,rgba(37,99,235,.18),transparent 55%),linear-gradient(135deg,#0f172a,#1e293b 45%,#0f172a);color:#f8fafc;padding:5rem 0 4rem;margin-bottom:2rem;text-align:center}.section-kicker{text-transform:uppercase;letter-spacing:.15em;font-size:.85rem;color:#94a3b8;font-weight:600;margin:0 0 .5rem}.classify-hero h1{margin:0 0 1rem;font-size:clamp(2.5rem,4vw,3.5rem);font-weight:800;letter-spacing:-.02em;line-height:1.1}.hero-desc{max-width:600px;margin:0 auto;color:#e2e8f0d9;font-size:1.125rem;line-height:1.7}.classify-content{padding:3rem 0 6rem}.articles-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:2rem}.article-card{background:#fff;border-radius:16px;overflow:hidden;box-shadow:0 4px 6px -1px #0000000d,0 2px 4px -1px #00000008;transition:transform .3s ease,box-shadow .3s ease;border:1px solid var(--border);height:100%;display:flex;flex-direction:column}.article-card:hover{transform:translateY(-5px);box-shadow:0 20px 25px -5px #0000001a,0 10px 10px -5px #0000000a}.article-card a{display:flex;flex-direction:column;height:100%;color:inherit;text-decoration:none}.article-media{position:relative;aspect-ratio:16/10;overflow:hidden}.article-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}.article-card:hover .article-media img{transform:scale(1.05)}.article-tag{position:absolute;top:1rem;left:1rem;background:#fffffff2;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);padding:.35rem .8rem;border-radius:100px;font-size:.75rem;font-weight:600;color:#0f172a;box-shadow:0 2px 4px #0000001a}.article-body{padding:1.5rem;display:flex;flex-direction:column;flex:1}.article-meta{display:flex;gap:1rem;font-size:.85rem;color:#64748b;margin-bottom:.75rem}.article-meta i{margin-right:.4rem;color:#3b82f6}.article-body h3{font-size:1.25rem;font-weight:700;color:#1e293b;margin:0 0 .75rem;line-height:1.4}.article-body p{color:#475569;font-size:.95rem;line-height:1.6;margin:0;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}.not-found{padding:4rem 0;text-align:center}.not-found h2{font-size:2rem;margin-bottom:1rem;color:#1e293b}.not-found p{color:#64748b;margin-bottom:2rem}@media (max-width: 768px){.classify-hero{padding:4rem 0 3rem}.classify-hero h1{font-size:2.5rem}.articles-grid{grid-template-columns:1fr;gap:1.5rem}}