:root{--color-bg: #f8fafc;--color-surface: #ffffff;--color-border: #e2e8f0;--color-text: #0f172a;--color-text-muted: #64748b;--color-primary: #2563eb;--color-primary-hover: #1d4ed8;--color-accent: #f59e0b;--color-gold: #eab308;--color-silver: #94a3b8;--color-bronze: #d97706;--color-danger: #ef4444;--color-success: #22c55e;--radius: 12px;--radius-sm: 8px;--shadow: 0 1px 3px rgba(15, 23, 42, .08), 0 4px 12px rgba(15, 23, 42, .04);--shadow-lg: 0 4px 6px rgba(15, 23, 42, .05), 0 12px 32px rgba(15, 23, 42, .08);--font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;--max-width: 960px}*,*:before,*:after{box-sizing:border-box}html{font-family:var(--font-sans);background:var(--color-bg);color:var(--color-text);line-height:1.6;-webkit-font-smoothing:antialiased}body{margin:0;min-height:100vh}a{color:var(--color-primary);text-decoration:none}a:hover{color:var(--color-primary-hover)}img{max-width:100%;display:block}.container{width:100%;max-width:var(--max-width);margin:0 auto;padding:0 1.25rem}.page-header{padding:2.5rem 0 2rem;text-align:center}.page-header h1{margin:0 0 .5rem;font-size:2rem;font-weight:700;letter-spacing:-.02em}.page-header p{margin:0;color:var(--color-text-muted);font-size:1.05rem}.back-link{display:inline-flex;align-items:center;gap:.35rem;font-size:.9rem;color:var(--color-text-muted);margin-bottom:1.5rem;transition:color .15s}.back-link:hover{color:var(--color-primary)}.nav-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:1rem;padding-bottom:3rem}.nav-card{display:flex;flex-direction:column;gap:.5rem;padding:1.5rem;background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius);box-shadow:var(--shadow);transition:transform .15s,box-shadow .15s,border-color .15s;color:inherit}.nav-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg);border-color:#cbd5e1;color:inherit}.nav-card-icon{font-size:2rem;line-height:1}.nav-card-title{font-size:1.15rem;font-weight:600;margin:0}.nav-card-subtitle{font-size:.875rem;color:var(--color-text-muted);margin:0}.nav-card-desc{font-size:.85rem;color:var(--color-text-muted);margin:.25rem 0 0;line-height:1.5}.ranking-meta{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius);padding:1.25rem 1.5rem;margin-bottom:1.5rem;font-size:.9rem;color:var(--color-text-muted);line-height:1.6}.ranking-list{list-style:none;margin:0;padding:0 0 3rem;display:flex;flex-direction:column;gap:.75rem}.ranking-item{display:grid;grid-template-columns:auto 1fr auto;gap:1rem;align-items:center;padding:1.25rem 1.5rem;background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius);box-shadow:var(--shadow)}.rank-badge{display:flex;align-items:center;justify-content:center;width:2.5rem;height:2.5rem;border-radius:50%;font-weight:700;font-size:1rem;flex-shrink:0;background:#f1f5f9;color:var(--color-text-muted)}.rank-badge.gold{background:linear-gradient(135deg,#fef08a,#facc15);color:#854d0e}.rank-badge.silver{background:linear-gradient(135deg,#e2e8f0,#cbd5e1);color:#475569}.rank-badge.bronze{background:linear-gradient(135deg,#fed7aa,#f59e0b);color:#92400e}.ranking-item-info h3{margin:0 0 .2rem;font-size:1.05rem;font-weight:600}.ranking-item-info p{margin:0;font-size:.875rem;color:var(--color-text-muted)}.ranking-tags{display:flex;flex-wrap:wrap;gap:.35rem;margin-top:.5rem}.tag{display:inline-block;padding:.15rem .5rem;font-size:.75rem;background:#f1f5f9;color:var(--color-text-muted);border-radius:999px}.score{font-size:1.5rem;font-weight:700;font-variant-numeric:tabular-nums;flex-shrink:0}.score.good{color:var(--color-success)}.score.bad{color:var(--color-danger)}.site-footer{text-align:center;padding:2rem 0;color:var(--color-text-muted);font-size:.85rem;border-top:1px solid var(--color-border)}.site-footer p{margin:0}@media(max-width:600px){.ranking-item{grid-template-columns:auto 1fr;grid-template-rows:auto auto}.score{grid-column:2;justify-self:end;font-size:1.25rem}.page-header h1{font-size:1.6rem}}