:root{--background: #f5f6f3;--surface: #ffffff;--sidebar: #eef1ed;--text: #1e2522;--muted: #5f6b64;--line: #d5ddd7;--line-strong: #bac9c1;--accent: #176b58;--accent-deep: #104d40;--warm: #9b4038;--topbar-bg: rgba(245, 246, 243, .95);--hover-bg: #dae6e1;--folder-bg: #e4efeb;--quote-bg: #eef3f0;--shadow: rgba(30, 37, 34, .12);--home-panel-bg: rgba(245, 246, 243, .76);--footer-bg: #eef1ed;--header-height: 58px;--sidebar-width: 278px;--sidebar-collapsed-width: 72px;font-family:Noto Sans SC,Microsoft YaHei,PingFang SC,Arial,sans-serif;color:var(--text);background:var(--background)}@media(prefers-color-scheme:dark){:root{--background: #141817;--surface: #1d2421;--sidebar: #18201d;--text: #e6ece8;--muted: #a7b4ad;--line: #2d3934;--line-strong: #3f5049;--accent: #55c7ae;--accent-deep: #84dec9;--warm: #e39a82;--topbar-bg: rgba(20, 24, 23, .94);--hover-bg: #22332e;--folder-bg: #1f332d;--quote-bg: #1c2a26;--shadow: rgba(0, 0, 0, .3);--home-panel-bg: rgba(20, 24, 23, .72);--footer-bg: #111514}}*{box-sizing:border-box}html{background:var(--background)}body{margin:0;color:var(--text);background:var(--background);line-height:1.65}a{color:inherit;text-decoration:none}.topbar{position:sticky;top:0;z-index:10;display:flex;height:var(--header-height);align-items:center;gap:20px;padding:0 26px;border-bottom:1px solid var(--line);background:var(--topbar-bg);backdrop-filter:blur(10px)}.brand{color:var(--accent-deep);font-size:22px;font-weight:700}.sidebar-toggle{display:inline-grid;width:36px;height:36px;place-content:center;gap:4px;border:1px solid var(--line);border-radius:8px;cursor:pointer}.sidebar-toggle span{display:block;width:16px;height:2px;border-radius:999px;background:var(--accent-deep)}.sidebar-checkbox{position:fixed;opacity:0;pointer-events:none}.site-domain{padding-left:20px;border-left:1px solid var(--line-strong);color:var(--muted);font-size:13px}.admin-login-link{margin-left:auto;color:var(--accent-deep);font-size:14px;font-weight:700;text-decoration:underline;text-underline-offset:5px}.admin-avatar-link{display:inline-flex;margin-left:auto;align-items:center}.admin-avatar-link[hidden],.admin-login-link[hidden]{display:none}.admin-avatar-link img{width:34px;height:34px;border:1px solid var(--line-strong);border-radius:50%;object-fit:cover}.workspace{display:grid;grid-template-columns:var(--sidebar-width) minmax(0,1fr);min-height:calc(100vh - 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