:root{--bg:#f4f7fb;--card:#fff;--ink:#131a2b;--muted:#4d5768;--line:#dbe2ee;--accent:#1e3a5f;--accent2:#c0392b;--accent-ink:#fff;--good:#14622f;--good-bg:#e6f4ea;--bad:#9b1c1c;--bad-bg:#fdecec;--shadow:0 1px 2px #131a2b0f, 0 4px 14px #131a2b0d}@media (prefers-color-scheme:dark){:root{--bg:#10131a;--card:#1a1f2b;--ink:#eef1f7;--muted:#aab2c2;--line:#2a3040;--accent:#6fa3d8;--accent2:#ff8a75;--accent-ink:#0c1420;--good:#7fdc9b;--good-bg:#16301f;--bad:#ff9a9a;--bad-bg:#3a1c1c}}*{box-sizing:border-box}html,body{background:var(--bg);color:var(--ink);margin:0;font:16px/1.5 system-ui,-apple-system,Segoe UI,sans-serif}h1{letter-spacing:-.02em;margin:.4em 0 .3em;font-size:1.9rem;line-height:1.15}h2{margin:1em 0 .3em;font-size:1.15rem}h2 small{color:var(--muted);font-weight:400}p{margin:.4em 0 .8em}.shell{flex-direction:column;max-width:760px;min-height:100vh;margin:0 auto;padding:0 16px 24px;display:flex}.main{flex:1;padding-top:8px}.top{border-bottom:1px solid 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div{background:var(--accent);height:100%}.history{margin:0;padding:0;list-style:none}.foot{border-top:1px solid var(--line);color:var(--muted);flex-wrap:wrap;align-items:center;gap:8px 16px;margin-top:32px;padding-top:14px;font-size:.82rem;display:flex}.powered{color:var(--muted);align-items:center;gap:8px;text-decoration:none;display:inline-flex}.n3u-logo{width:auto;height:22px;display:block}.tagline{flex:1;min-width:200px}.notice,.err{background:var(--bad-bg);color:var(--bad);border-radius:8px;padding:8px 12px}.kill{text-align:center;max-width:520px;margin:18vh auto 0;padding:0 16px}@media (width<=480px){.hero{font-size:1.8rem}h1{font-size:1.6rem}.case-text{font-size:1rem;line-height:2}}