:root{--bg: #fbfbfc;--panel: #ffffff;--ink: #1f2329;--muted: #6b7380;--line: #e3e6ea;--near: #c0392b;--mid: #e08e45;--far: #c9a882;--gold: #d4a017;font-family:PingFang SC,Microsoft YaHei,system-ui,sans-serif;color:var(--ink)}*{box-sizing:border-box}html,body,#root{margin:0;height:100%;background:var(--bg)}button{font:inherit;cursor:pointer}.splash{display:grid;place-items:center;height:100%;color:var(--muted)}.app{position:relative;height:100%;overflow:hidden}.graph{position:absolute;top:0;right:0;bottom:0;left:0}header{position:absolute;top:0;left:0;right:0;z-index:10;display:flex;align-items:center;gap:16px;padding:12px 16px;background:linear-gradient(var(--bg) 70%,transparent);pointer-events:none}header>*{pointer-events:auto}.brand h1{font-size:20px;margin:0}.brand .stats{font-size:12px;color:var(--muted)}.user{margin-left:auto;display:flex;align-items:center;gap:8px;font-size:13px}.user img{width:28px;height:28px;border-radius:50%}.user button,.login{border:1px solid var(--line);background:var(--panel);border-radius:6px;padding:5px 10px;color:var(--ink);text-decoration:none;font-size:13px}.search{position:relative;width:min(360px,50vw)}.search input{width:100%;padding:8px 12px;border:1px solid var(--line);border-radius:8px;font:inherit;background:var(--panel);outline:none}.search input:focus{border-color:#9bb4d6}.search ul{position:absolute;top:40px;left:0;right:0;margin:0;padding:4px 0;list-style:none;background:var(--panel);border:1px solid var(--line);border-radius:8px;box-shadow:0 6px 24px #00000014}.search li{padding:6px 12px;cursor:pointer;display:flex;gap:8px;align-items:baseline}.search li span{color:var(--muted);font-size:12px}.search li.on,.search li:hover{background:#f1f4f8}.trail{position:absolute;top:64px;left:16px;z-index:10;display:flex;flex-wrap:wrap;gap:4px;align-items:center;max-width:calc(100% - 420px)}.trail button{border:1px solid var(--line);background:var(--panel);border-radius:14px;padding:3px 10px;font-size:12px}.trail button.on{background:var(--ink);color:#fff;border-color:var(--ink)}.trail .hint{font-size:12px;color:var(--muted);margin-left:6px}.card{position:absolute;top:64px;right:16px;z-index:20;width:360px;max-height:calc(100% - 120px);overflow:auto;background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:14px;box-shadow:0 10px 30px #00000014}.card-head{display:flex;gap:12px}.cover{width:84px;height:120px;object-fit:cover;border-radius:4px;flex:none;background:#eee}.meta h2{font-size:17px;margin:0 0 4px;line-height:1.3}.meta .sub{font-size:13px;color:var(--muted)}.chips{display:flex;flex-wrap:wrap;gap:4px;margin:8px 0}.chip{font-size:11px;border:1px solid var(--line);border-radius:10px;padding:1px 7px;color:var(--muted)}.chip.seed{border-color:var(--gold);color:#9a7408}.actions{display:flex;align-items:center;gap:10px;font-size:12px}.actions a{color:#3a6ea5}.actions .editions{color:var(--muted)}.read{border:1px solid var(--gold);background:#fff;color:#9a7408;border-radius:6px;padding:3px 9px;font-size:12px}.read.on{background:var(--gold);color:#fff}.related{list-style:none;margin:12px 0 0;padding:10px 0 0;border-top:1px solid var(--line)}.related li{display:grid;grid-template-columns:10px 1fr 60px;grid-template-rows:auto auto;column-gap:8px;padding:5px 4px;border-radius:6px;cursor:pointer;align-items:center}.related li:hover{background:#f4f6f9}.related .rt{font-size:13px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.related .why{grid-column:2 / 4;font-size:11px;color:var(--muted)}.related .bar{height:5px;background:#eef0f3;border-radius:3px;overflow:hidden}.related .bar i{display:block;height:100%;background:var(--near)}.dot{display:inline-block;width:9px;height:9px;border-radius:50%}.dot.near{background:var(--near)}.dot.mid{background:var(--mid)}.dot.far{background:var(--far)}.legend{position:absolute;left:16px;bottom:34px;z-index:10;display:flex;flex-wrap:wrap;gap:14px;font-size:12px;color:var(--muted);background:#fbfbfcd9;padding:6px 10px;border-radius:8px}.legend span{display:flex;align-items:center;gap:5px}footer{position:absolute;left:16px;bottom:10px;font-size:11px;color:#9aa1ab;z-index:10}.toast{position:absolute;left:50%;bottom:70px;transform:translate(-50%);z-index:30;background:var(--ink);color:#fff;padding:8px 14px;border-radius:8px;font-size:13px}@media (max-width: 700px){header{flex-wrap:wrap;gap:8px}.search{width:100%;order:3}.card{left:8px;right:8px;top:auto;bottom:8px;width:auto;max-height:55%}.trail{top:100px;max-width:none;right:16px}.legend .tip{display:none}}