:root{--bg-0:#070d17;--bg-1:#0f172a;--bg-2:#1b2739;--bg-3:#243248;--line:#94a3b824;--line-strong:#94a3b852;--ink:#e8eef7;--ink-dim:#9db0c8;--ink-faint:#6b7f99;--accent:#f59e0b;--accent-hi:#fbbf24;--accent-soft:#f59e0b24;--accent-line:#f59e0b73;--cyan:#22d3ee;--violet:#a78bfa;--green:#22c55e;--green-soft:#22c55e24;--red:#ef4444;--red-soft:#ef444424;--violet-soft:#a78bfa21;--font-sans:"PingFang SC", "Microsoft YaHei", "Segoe UI", system-ui, -apple-system, sans-serif;--font-mono:ui-monospace, "Cascadia Mono", "JetBrains Mono", Consolas, monospace;--r-sm:8px;--r-md:12px;--r-lg:16px;--r-full:999px;--dur-fast:.15s;--dur:.22s;--shadow-card:0 1px 2px #0000004d, 0 8px 24px -12px #00000080;--shadow-pop:0 12px 40px -12px #000000a6}@media (prefers-reduced-motion:reduce){:root{--dur-fast:0s;--dur:0s}}*{box-sizing:border-box}html,body{height:100%;margin:0}body{background:radial-gradient(1200px 600px at 70% -10%, #22d3ee0f, transparent 60%), radial-gradient(900px 500px at 10% 110%, #f59e0b0d, 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solid var(--line);background:var(--bg-2);color:var(--ink-dim);cursor:pointer;transition:background var(--dur-fast), border-color var(--dur-fast), color var(--dur-fast);flex:1;padding:6px 4px;font-size:13px}.seg:hover:not(:disabled){border-color:var(--line-strong);color:var(--ink)}.seg--on{background:var(--accent-soft);border-color:var(--accent-line);color:var(--accent-hi);font-weight:600}.seg:disabled{cursor:default;opacity:.9}.seg--on:disabled{opacity:1}.shot-picker__face-wrap{align-items:center;gap:12px;display:flex}.shot-picker__face{grid-template-rows:repeat(3,14px);grid-template-columns:repeat(3,14px);gap:6px;display:grid}.shot-picker__dot{border:1px solid var(--line-strong);background:var(--bg-2);border-radius:50%;width:14px;height:14px}.shot-picker__dot--on{background:var(--accent);border-color:var(--accent-hi);box-shadow:0 0 0 3px var(--accent-soft)}.shot-picker__face-caption{color:var(--ink-faint);font-size:12px}.shot-picker__actions{justify-content:flex-end;display:flex}.practice__params{flex-direction:column;gap:8px;margin-top:10px;display:flex}.practice__params-title{color:var(--ink-faint);letter-spacing:.4px;font-size:12px}@media (max-width:1080px){.course-tab__subtitle{display:none}.course-tab{padding:6px 12px}}