:root{--bg: #fafaf7;--surface: #ffffff;--surface-2: #f3f1ec;--border: #e4e0d6;--text: #1f1d1a;--muted: #6b6760;--accent: #5a7a3d;--accent-weak: #dfead0;--danger: #a8452d;--shadow: 0 1px 2px rgba(0, 0, 0, .06), 0 4px 12px rgba(0, 0, 0, .04);--radius: 10px;--font-sans: -apple-system, BlinkMacSystemFont, "Inter", "Helvetica Neue", Arial, "Noto Sans TC", "PingFang TC", "Microsoft JhengHei", "Noto Sans CJK TC", "Heiti TC", sans-serif;--font-serif: "Georgia", "Times New Roman", "Noto Serif TC", "PingFang TC", serif}@media (prefers-color-scheme: dark){:root{--bg: #17191a;--surface: #1f2223;--surface-2: #272a2b;--border: #363a3b;--text: #eceae4;--muted: #9a968c;--accent: #a6c27e;--accent-weak: #2e3b22;--danger: #e18667;--shadow: 0 1px 2px rgba(0, 0, 0, .4), 0 4px 12px rgba(0, 0, 0, .3)}}*{box-sizing:border-box}html,body,#root{margin:0;padding:0;height:100%}body{background:var(--bg);color:var(--text);font-family:var(--font-sans);font-size:15px;line-height:1.45;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}button{-webkit-appearance:none;-moz-appearance:none;appearance:none;font:inherit;color:var(--text);cursor:pointer;background:var(--surface);border:1px solid var(--border);border-radius:8px;padding:6px 12px;transition:background .12s ease,border-color .12s ease}button:hover:not(:disabled){background:var(--surface-2);border-color:var(--muted)}button:disabled{cursor:not-allowed;color:var(--muted);background:var(--surface-2);border-color:var(--border)}button.primary{background:var(--accent);border-color:var(--accent);color:#fff}button.primary:hover:not(:disabled){filter:brightness(1.05)}button.primary:disabled{background:var(--surface-2);border-color:var(--border);color:var(--muted)}button.danger{color:var(--danger);border-color:var(--danger);background:transparent}input,select,textarea{font:inherit;color:inherit;background:var(--surface);border:1px solid var(--border);border-radius:8px;padding:6px 10px;width:100%}input:focus,select:focus,textarea:focus{outline:2px solid var(--accent);outline-offset:-1px;border-color:var(--accent)}.app{display:flex;flex-direction:column;height:100vh;height:100dvh}.topbar{display:flex;align-items:center;gap:12px;padding:10px 16px;background:var(--surface);border-bottom:1px solid var(--border);box-shadow:var(--shadow);z-index:5}.topbar h1{font-size:15px;font-weight:600;margin:0;letter-spacing:.02em}.topbar .spacer{flex:1}.topbar .status{color:var(--muted);font-size:13px}.main{flex:1;display:flex;min-height:0;overflow:hidden}.canvas{flex:1;position:relative;overflow:hidden;background:radial-gradient(circle at 1px 1px,rgba(120,120,100,.15) 1px,transparent 0) 0 0 / 24px 24px}.side{width:340px;max-width:40vw;background:var(--surface);border-left:1px solid var(--border);padding:16px;overflow-y:auto;display:flex;flex-direction:column;gap:12px}.side h2{font-size:14px;margin:0 0 4px;color:var(--muted);font-weight:600;text-transform:uppercase;letter-spacing:.08em}.side-header{display:flex;align-items:flex-start;gap:8px}.side-header-text{flex:1;min-width:0}.icon-button{flex-shrink:0;width:32px;height:32px;padding:0;font-size:22px;line-height:1;color:var(--muted);border-radius:8px;display:inline-flex;align-items:center;justify-content:center}.icon-button:hover:not(:disabled){color:var(--text)}.relation-row{display:flex;gap:4px;align-items:stretch}.relation-item{flex:1;min-width:0;text-align:left;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.relation-row .icon-button{width:32px;height:auto;font-size:18px}.segmented{display:flex;gap:0;border:1px solid var(--border);border-radius:8px;overflow:hidden}.segmented button{flex:1;border:none;border-radius:0;background:var(--surface)}.segmented button+button{border-left:1px solid var(--border)}.segmented button.primary{background:var(--accent);color:#fff}.side .name-zh{font-family:var(--font-serif);font-size:22px;line-height:1.1}.side .name-en{font-size:15px;color:var(--muted);letter-spacing:.04em}.field{display:flex;flex-direction:column;gap:4px}.field label{font-size:12px;color:var(--muted);text-transform:uppercase;letter-spacing:.06em}.row{display:flex;gap:8px;flex-wrap:wrap}.login{margin:auto;padding:32px;max-width:360px;background:var(--surface);border:1px solid var(--border);border-radius:14px;box-shadow:var(--shadow);display:flex;flex-direction:column;gap:12px}.login h1{margin:0;font-family:var(--font-serif);font-size:24px}.login p.hint{color:var(--muted);margin:0}.login .error{color:var(--danger);font-size:13px}.center-screen{display:flex;align-items:center;justify-content:center;height:100%}.node-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:8px 10px;min-width:140px;box-shadow:var(--shadow);cursor:pointer;-webkit-user-select:none;user-select:none;transition:border-color .12s ease,box-shadow .12s ease}.node-card.selected{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-weak)}.node-card .primary{font-family:var(--font-serif);font-size:16px;line-height:1.1}.node-card .secondary{font-size:12px;color:var(--muted);margin-top:2px;letter-spacing:.04em}.node-card .meta{font-size:11px;color:var(--muted);margin-top:4px}.sex-M .node-card{border-top:3px solid #6b88a3}.sex-F .node-card{border-top:3px solid #b87a9a}.empty-state{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;color:var(--muted);text-align:center;padding:24px}.empty-state h2{font-family:var(--font-serif);font-size:22px;color:var(--text);margin:0}@media (max-width: 720px){.side{position:fixed;inset:auto 0 0 0;width:100%;max-width:100%;max-height:70dvh;border-left:none;border-top:1px solid var(--border);border-radius:14px 14px 0 0}}