:root{--bg: #f6f7fb;--card: #ffffff;--ink: #1e2433;--muted: #6b7280;--primary: #4f6bf6;--primary-dark: #3d55d8;--accent: #ffb020;--ok: #1fa971;--bad: #e05555;--line: #e7e9f2;--radius: 16px;--shadow: 0 2px 12px rgba(30, 41, 80, .07)}*{box-sizing:border-box}html,body{margin:0;padding:0;background:var(--bg);color:var(--ink);font-family:-apple-system,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;font-size:16px;line-height:1.5}h1,h2,h3{margin:.4em 0;line-height:1.25}h1{font-size:1.5rem}h2{font-size:1.2rem}h3{font-size:1.05rem}p{margin:.5em 0}a{color:var(--primary);text-decoration:none}pre{font-family:inherit;white-space:pre-wrap;word-wrap:break-word;margin:0}.shell{min-height:100dvh;display:flex;flex-direction:column}.shell-main{flex:1;width:100%;max-width:560px;margin:0 auto;padding:12px 16px 90px}.topbar{position:sticky;top:0;z-index:20;background:#ffffffeb;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}.topbar-inner{max-width:560px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;padding:10px 16px}.brand{font-weight:700;font-size:1.02rem;display:inline-flex;align-items:center;gap:8px}.brand-mark{display:inline-grid;place-items:center;width:28px;height:28px;border-radius:8px;background:linear-gradient(135deg,var(--primary),#7c3aed);color:#fff;font-size:.72rem;font-weight:800;letter-spacing:.5px}.topbar-right{display:flex;align-items:center;gap:8px}.avatar{width:32px;height:32px;border-radius:50%;display:grid;place-items:center;background:#eef1fe;color:var(--primary);font-weight:700;border:none}.avatar-big{width:44px;height:44px;font-size:1.1rem}.profile-row{display:flex;align-items:center;gap:12px;margin-bottom:12px}.tabbar{position:fixed;bottom:0;left:0;right:0;z-index:20;background:#fffffff5;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border-top:1px solid var(--line);display:flex;justify-content:space-around;padding:6px 4px 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8px}.stat-num{font-size:1.3rem;font-weight:800}.stat-cap{font-size:.72rem;color:var(--muted)}.bars{display:flex;align-items:flex-end;gap:5px;height:120px;padding-top:8px}.bar-col{flex:1;display:flex;flex-direction:column;align-items:center;gap:4px;height:100%;justify-content:flex-end}.bar-stack{display:flex;flex-direction:column;justify-content:flex-end;width:100%;max-width:26px}.bar{width:100%;border-radius:3px}.bar-ok{background:var(--ok)}.bar-bad{background:#f4b8b8}.bar-label{font-size:.62rem;color:var(--muted)}.legend{display:flex;align-items:center;gap:6px;margin-top:10px}.legend-dot{width:10px;height:10px;border-radius:3px;display:inline-block;margin-left:10px}.exam-score{font-weight:800;font-size:1.1rem}.compare{display:grid;grid-template-columns:1fr 1fr;gap:12px}.compare-col ul{list-style:none;padding:0;margin:8px 0 0;font-size:.82rem}.compare-col li{padding:4px 0}.compare-hot h3{color:var(--primary)}.premium-active{text-align:center;padding:26px 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