:root{--bg: #f8f8f8;--surface: #ffffff;--surface-2: #f2f3f5;--surface-3: #e9eaec;--border: #e9eaec;--text: #161823;--muted: #86909c;--primary: #c8452f;--primary-2: #e2684f;--brand-soft: #fbeae6;--danger: #e0245e;--ok: #00a866;--like: #c8452f;--header-h: 64px;--side-w: 216px;--rail-w: 320px}*{box-sizing:border-box}html,body{margin:0;padding:0}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,PingFang SC,Microsoft YaHei,sans-serif;background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased}a{color:var(--primary);text-decoration:none}button{font:inherit;cursor:pointer;border:none;border-radius:8px;padding:9px 16px;background:var(--primary);color:#fff;font-weight:600}button.secondary{background:var(--surface-2);color:var(--text)}button.ghost{background:transparent;color:var(--primary)}button:disabled{opacity:.45;cursor:not-allowed}input,textarea,select{font:inherit;width:100%;padding:10px 12px;border-radius:8px;border:1px solid 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a.active{color:var(--primary)}.bottom-nav a svg{width:24px;height:24px}@media (max-width: 1180px){.pc-body{grid-template-columns:var(--side-w) minmax(0,1fr)}.pc-rail{display:none}}@media (max-width: 900px){.pc-body{grid-template-columns:68px minmax(0,1fr)}.pc-sidebar{padding:12px 6px}.side-item{justify-content:center;padding:12px 0}.side-item span,.side-item .dot,.side-group .side-cap,.pc-sidebar .side-foot{display:none}.pc-main{padding:0 14px 60px}}@media (max-width: 768px){.pc-body{grid-template-columns:minmax(0,1fr)}.pc-sidebar{display:none}.pc-main{padding:0 12px calc(72px + env(safe-area-inset-bottom))}.bottom-nav{display:flex}.pc-header{padding:0 14px;gap:12px}.pc-logo{font-size:18px}.pc-logo .logo-mark{width:30px;height:30px}.pc-header .actions .publish-btn span{display:none}.vgrid{grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:14px 10px}.vd-layout{grid-template-columns:minmax(0,1fr)}.vd-side{display:none}.chat-layout{height:calc(100vh - var(--header-h) - 40px)}.conv-list{width:130px}.bubble{max-width:82%}.center{margin:4vh 16px}}