.footer{border-top:1px solid var(--border);margin-top:64px;padding:28px 20px 40px;text-align:center;color:var(--text-faint);font-size:13px}.footer-links{display:flex;gap:20px;justify-content:center;margin-bottom:10px}.footer-links a{color:var(--text-muted)}.footer-copy{font-size:12px}.layout{min-height:100vh;display:flex;flex-direction:column}.topbar{position:sticky;top:0;z-index:50;background:var(--bg);background:color-mix(in srgb,var(--bg) 82%,transparent);-webkit-backdrop-filter:saturate(180%) blur(14px);backdrop-filter:saturate(180%) blur(14px);border-bottom:1px solid 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16px;border-radius:var(--radius-sm);background:var(--accent-soft);color:var(--accent);font-size:13.5px;cursor:pointer}@media (max-width: 640px){.topbar-inner{height:54px}.brand{font-size:18px}.topbar-actions{gap:6px}.icon-btn{width:34px;height:34px}.content{padding:20px 14px}}.content{flex:1;width:100%;max-width:920px;margin:0 auto;padding:32px 20px}.note-tree-wrap{background:var(--bg-elevated);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow-sm);padding:6px}.note-tree{list-style:none;margin:0;padding:0}.tree-children{margin-left:15px;padding-left:9px;border-left:1px solid var(--border)}.tree-item{margin:0}.tree-row{position:relative;display:flex;align-items:center;gap:4px;padding:7px 10px 7px 8px;border-radius:var(--radius-sm);border:1px solid transparent;transition:background var(--transition),box-shadow var(--transition);-webkit-touch-callout:none;-webkit-user-select:none;user-select:none}.tree-row:hover{background:var(--bg-subtle)}.tree-row-enc:before,.tree-row-rec:before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:3px;border-radius:999px}.tree-row-enc:before{background:var(--gold)}.tree-row-rec:before{background:var(--accent)}.tree-dragging{opacity:.45}.tree-drop-active{background:var(--accent-soft)!important;box-shadow:inset 0 0 0 1.5px var(--accent)}.tree-root-drop{position:sticky;top:8px;z-index:5;margin-bottom:8px;padding:14px;text-align:center;font-size:13px;font-weight:600;color:var(--accent);border:1.5px dashed var(--accent);border-radius:var(--radius-sm);background:var(--accent-soft);transition:transform var(--transition),box-shadow var(--transition)}.tree-root-drop.tree-drop-active{transform:scale(1.01);box-shadow:0 0 0 2px var(--accent)}.tree-ghost{position:fixed;z-index:1000;pointer-events:none;max-width:260px;padding:6px 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var(--border);border-radius:var(--radius);box-shadow:var(--shadow)}.login-title{margin:0 0 6px;font-size:22px;font-weight:700}.login-submit{margin-top:4px}.login-error{color:var(--danger);font-size:13.5px}:root{--font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;--font-mono: "SF Mono", "JetBrains Mono", "Fira Code", ui-monospace, Consolas, monospace;--radius: 14px;--radius-sm: 9px;--transition: .18s cubic-bezier(.4, 0, .2, 1)}:root,[data-theme=light]{--bg: #f6f5f1;--bg-elevated: #ffffff;--bg-subtle: #efeee9;--text: #21242b;--text-muted: #5c616b;--text-faint: #989ba3;--border: #e6e4dd;--border-strong: #d6d3ca;--accent: #3b5bdb;--accent-soft: #e7ebfb;--gold: #b07d2b;--gold-soft: #f4ecdb;--danger: #d6453d;--shadow-sm: 0 1px 2px rgba(33, 36, 43, .05);--shadow: 0 4px 16px rgba(33, 36, 43, .07), 0 1px 3px rgba(33, 36, 43, .05);--shadow-lg: 0 12px 40px rgba(33, 36, 43, .12)}[data-theme=dark]{--bg: #14151a;--bg-elevated: #1c1e25;--bg-subtle: #24262e;--text: #e7e8ec;--text-muted: #9ca1ac;--text-faint: #686d78;--border: #2b2e37;--border-strong: #3a3e49;--accent: #7d93f0;--accent-soft: #232a44;--gold: #cfa256;--gold-soft: #312a1c;--danger: #ef6b63;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .3);--shadow: 0 4px 16px rgba(0, 0, 0, .35), 0 1px 3px rgba(0, 0, 0, .3);--shadow-lg: 0 12px 40px rgba(0, 0, 0, .5)}*{box-sizing:border-box}html,body{margin:0;padding:0}body{font-family:var(--font-sans);background:var(--bg);color:var(--text);line-height:1.65;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;transition:background var(--transition),color var(--transition)}::selection{background:var(--accent-soft);color:var(--accent)}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}button{font-family:inherit;cursor:pointer}.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:8px 15px;border-radius:var(--radius-sm);border:1px solid var(--border-strong);background:var(--bg-elevated);color:var(--text);font-size:13.5px;font-weight:500;box-shadow:var(--shadow-sm);transition:border-color var(--transition),background var(--transition),transform var(--transition),box-shadow var(--transition)}.btn:hover{border-color:var(--text-faint);text-decoration:none;transform:translateY(-1px);box-shadow:var(--shadow)}.btn:active{transform:translateY(0)}.btn-primary{background:var(--accent);border-color:var(--accent);color:#fff}.btn-primary:hover{filter:brightness(1.06);border-color:var(--accent)}:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.btn-danger{color:var(--danger);border-color:var(--danger);background:transparent}.btn-danger:hover{background:var(--danger);color:#fff}.btn:disabled{opacity:.5;cursor:not-allowed}.input{width:100%;padding:10px 14px;border-radius:var(--radius-sm);border:1px solid var(--border-strong);background:var(--bg-elevated);color:var(--text);font-size:14px;box-shadow:var(--shadow-sm);transition:border-color var(--transition),box-shadow var(--transition)}.input::placeholder{color:var(--text-faint)}.input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}.container{max-width:920px;margin:0 auto;padding:0 20px}.tag{display:inline-block;padding:2px 9px;border-radius:6px;background:var(--bg-subtle);color:var(--text-muted);font-size:11.5px;font-weight:500;line-height:1.7;border:none;white-space:nowrap;transition:background var(--transition),color var(--transition)}.tag-active,.tag.clickable:hover{background:var(--accent-soft);color:var(--accent);cursor:pointer}@keyframes shimmer{0%{background-position:-400px 0}to{background-position:400px 0}}.skeleton{background:linear-gradient(90deg,var(--bg-subtle) 25%,var(--border) 37%,var(--bg-subtle) 63%);background-size:800px 100%;animation:shimmer 1.4s infinite linear;border-radius:var(--radius-sm)}.spin{width:20px;height:20px;border:2px solid var(--border);border-top-color:var(--accent);border-radius:50%;animation:rotate .7s linear infinite}@keyframes rotate{to{transform:rotate(360deg)}}.center-box{display:flex;align-items:center;justify-content:center;min-height:50vh;flex-direction:column;gap:12px;color:var(--text-muted)}@media (max-width: 640px){.container{padding:0 14px}.btn{padding:7px 12px;font-size:13px}}