:root,[data-app-theme=dark]{--bg: #14121a;--bg-soft: #1d1a26;--bg-card: #242030;--border: #35304a;--text: #e9e6f2;--text-dim: #a49fb8;--accent: #8b5cf6;--accent-soft: #6d43d1;--on-accent: #ffffff;--danger: #e5484d;--danger-bg: rgba(229, 72, 77, .12);--danger-text: #ffb4b6;--overlay: rgba(0, 0, 0, .6);--glow: rgba(139, 92, 246, .14);color-scheme:dark}[data-app-theme=light]{--bg: #f7f6f3;--bg-soft: #efeee9;--bg-card: #ffffff;--border: #dcdce4;--text: #17171c;--text-dim: #63636f;--accent: #6d43d1;--accent-soft: #8b5cf6;--on-accent: #ffffff;--danger: #c8292e;--danger-bg: #fdecec;--danger-text: #a01f24;--overlay: rgba(0, 0, 0, .35);--glow: rgba(109, 67, 209, .1);color-scheme:light}*{box-sizing:border-box}html,body,#root{margin:0;min-height:100%}body{background:var(--bg);color:var(--text);font-family:Segoe UI,Microsoft YaHei,system-ui,-apple-system,sans-serif;font-size:15px;line-height:1.7;background-image:radial-gradient(1100px 520px at 50% -12%,var(--glow),transparent 70%);background-repeat:no-repeat}a{color:inherit;text-decoration:none}button{font:inherit;cursor:pointer;color:inherit}.site-header{display:flex;align-items:center;justify-content:space-between;gap:16px;max-width:1040px;margin:0 auto;padding:22px 24px}.brand{display:inline-flex;align-items:center;gap:10px;color:var(--text)}.brand svg{display:block;width:28px;height:28px;flex:none;color:var(--text)}.brand-name{font-size:19px;font-weight:600;letter-spacing:.02em}.theme-toggle{display:inline-flex;align-items:center;gap:7px;flex:none;border:1px solid var(--border);background:var(--bg-card);border-radius:999px;padding:6px 14px 6px 12px;font-size:13px;color:var(--text-dim);transition:border-color .15s,color .15s}.theme-toggle:hover{border-color:var(--accent-soft);color:var(--text)}.theme-toggle svg{width:15px;height:15px;display:block}.hero{max-width:1040px;margin:0 auto;padding:34px 24px 30px}.hero h1{margin:0 0 12px;font-size:clamp(26px,5vw,40px);line-height:1.25;font-weight:700;letter-spacing:-.01em}.hero p{margin:0;max-width:46ch;color:var(--text-dim);font-size:16px}.hero-count{display:inline-block;margin-top:18px;padding:3px 12px;border:1px solid var(--border);border-radius:999px;background:var(--bg-soft);color:var(--text-dim);font-size:13px}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,340px),1fr));gap:18px;max-width:1040px;margin:0 auto;padding:0 24px 56px;align-items:start}.card{position:relative;display:flex;flex-direction:column;gap:12px;padding:22px 22px 20px;background:var(--bg-card);border:1px solid var(--border);border-radius:14px;min-width:0;border-top:2px solid var(--card-accent);transition:transform .15s,border-color .15s,box-shadow .15s}.card:hover,.card:focus-visible{transform:translateY(-2px);border-color:var(--card-accent);box-shadow:0 10px 30px -12px var(--card-accent)}.card:focus-visible{outline:2px solid 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