.app{display:flex;height:100vh;height:100dvh;background:var(--bg-deep);}.sidebar{width:var(--sidebar-w);min-width:var(--sidebar-w);height:100%;display:flex;flex-direction:column;background:var(--bg-surface);border-right:1px solid var(--border);z-index:10;transition:transform var(--t-normal);}.s-top{display:flex;align-items:center;gap:12px;padding:14px 16px;border-bottom:1px solid var(--border);min-height:56px;}.s-brand{font-size:18px;font-weight:800;letter-spacing:3px;color:var(--gold);flex-shrink:0;}.s-search{flex:1;display:flex;align-items:center;gap:8px;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-full);padding:7px 14px;transition:border-color var(--t-fast);}.s-search:focus-within{border-color:var(--gold);box-shadow:0 0 0 2px var(--gold-dim);}.search-icon{font-size:13px;opacity:0.5;flex-shrink:0;}.s-search input{flex:1;font-size:13px;min-width:0;}.s-search input::placeholder{color:var(--text-muted);}.s-user{padding:10px 16px;border-bottom:1px solid var(--border);font-size:13px;color:var(--text-secondary);display:flex;align-items:center;gap:8px;}.s-user .user-dot{width:8px;height:8px;border-radius:50%;background:var(--green);box-shadow:0 0 6px var(--green);flex-shrink:0;}.s-filters{display:flex;gap:6px;padding:10px 16px;overflow-x:auto;border-bottom:1px solid var(--border);flex-shrink:0;}.s-filter{padding:5px 12px;border-radius:var(--radius-full);background:var(--bg-card);color:var(--text-muted);font-size:12px;font-weight:500;white-space:nowrap;border:1px solid transparent;transition:all var(--t-fast);}.s-filter:hover{background:var(--bg-hover);color:var(--text-secondary);}.s-filter.on{background:var(--gold-dim);color:var(--gold);border-color:var(--border-gold);}.chats{flex:1;overflow-y:auto;overflow-x:hidden;padding:6px 8px;}.chat-item{display:flex;align-items:center;gap:12px;padding:10px 12px;border-radius:var(--radius-md);cursor:pointer;transition:all var(--t-fast);position:relative;}.chat-item:hover{background:var(--bg-hover);}.chat-item.active{background:var(--gold-dim);border:1px solid var(--border-gold);}.chat-item .c-avatar{width:46px;height:46px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:18px;font-weight:700;color:#fff;flex-shrink:0;position:relative;overflow:hidden;}.chat-item .c-avatar img{width:100%;height:100%;object-fit:cover;border-radius:50%;}.chat-item .c-body{flex:1;min-width:0;display:flex;flex-direction:column;gap:3px;}.chat-item .c-name{font-size:14px;font-weight:600;color:var(--text-primary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}.chat-item .c-last{font-size:12px;color:var(--text-muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}.chat-item .c-meta{display:flex;flex-direction:column;align-items:flex-end;gap:4px;flex-shrink:0;}.chat-item .c-time{font-size:11px;color:var(--text-muted);}.chat-item .c-badge{background:var(--gold);color:#000;font-size:10px;font-weight:700;padding:2px 7px;border-radius:var(--radius-full);min-width:20px;text-align:center;}.chat-item.protected{opacity:0.55;filter:grayscale(0.3);transition:all var(--t-fast);}.chat-item.protected:hover{opacity:0.75;}.chat-item.protected .c-last{color:#d4af37;font-weight:500;font-size:11px;}.chat-item .c-badge.c-lock{background:rgba(212,175,55,0.15);color:#d4af37;font-size:12px;padding:2px 5px;border:1px solid rgba(212,175,55,0.2);}.chat-empty{text-align:center;padding:40px 20px;color:var(--text-muted);font-size:13px;}.main{flex:1;display:flex;flex-direction:column;min-width:0;background:var(--bg-deep);position:relative;}.empty{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;color:var(--text-muted);animation:fadeIn 0.5s var(--ease);}.e-circle{width:100px;height:100px;border-radius:50%;background:var(--bg-card);border:1px solid var(--border-gold);display:flex;align-items:center;justify-content:center;font-size:48px;margin-bottom:10px;animation:glowPulse 3s ease-in-out infinite;}.empty b{font-size:20px;color:var(--text-primary);letter-spacing:2px;}.empty p{font-size:14px;}.top-bar{display:flex;align-items:center;gap:12px;padding:10px 20px;height:var(--topbar-h);border-bottom:1px solid var(--border);background:var(--bg-glass);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);flex-shrink:0;z-index:5;}.top-bar .back-btn{display:none;width:36px;height:36px;border-radius:50%;background:var(--bg-card);align-items:center;justify-content:center;font-size:18px;flex-shrink:0;}.top-bar .tb-avatar{width:40px;height:40px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:16px;font-weight:700;color:#fff;flex-shrink:0;overflow:hidden;}.top-bar .tb-avatar img{width:100%;height:100%;object-fit:cover;}.top-bar .tb-info{flex:1;min-width:0;}.top-bar .tb-name{font-size:15px;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}.top-bar .tb-sub{font-size:12px;color:var(--text-muted);}.tabs{display:flex;height:var(--tab-h);border-bottom:1px solid var(--border);background:var(--bg-surface);flex-shrink:0;overflow-x:auto;}.tab{flex:1;display:flex;align-items:center;justify-content:center;gap:5px;font-size:13px;font-weight:500;color:var(--text-muted);cursor:pointer;border-bottom:2px solid transparent;transition:all var(--t-fast);white-space:nowrap;padding:0 12px;}.tab:hover{color:var(--text-secondary);background:var(--bg-hover);}.tab.on{color:var(--gold);border-bottom-color:var(--gold);}.tab .cnt{font-size:10px;font-weight:700;background:var(--bg-hover);padding:1px 6px;border-radius:var(--radius-full);color:var(--text-muted);}.tab.on .cnt{background:var(--gold-dim);color:var(--gold);}#chatView{display:none;flex-direction:column;height:100%;}#chatView.visible{display:flex;}.msg-area{flex:1;overflow-y:auto;padding:16px 20px 20px;scroll-behavior:smooth;}.msg-wrap{display:flex;flex-direction:column;gap:4px;max-width:900px;margin:0 auto;}.ev-area{flex:1;overflow-y:auto;padding:16px 20px;display:none;}.ev-area.visible{display:block;}.lb{position:fixed;inset:0;background:rgba(0,0,0,0.92);display:none;align-items:center;justify-content:center;z-index:10000;cursor:zoom-out;backdrop-filter:blur(8px);animation:fadeIn 0.2s var(--ease);}.lb.show{display:flex;}.lb-x{position:absolute;top:16px;right:16px;width:40px;height:40px;border-radius:50%;background:rgba(255,255,255,0.1);color:#fff;font-size:20px;display:flex;align-items:center;justify-content:center;z-index:2;}.lb-x:hover{background:rgba(255,255,255,0.2);}.lb img{max-width:95vw;max-height:90vh;border-radius:var(--radius-md);object-fit:contain;cursor:default;}.lb video{max-width:95vw;max-height:90vh;border-radius:var(--radius-md);cursor:default;}@media (max-width:768px){:root{--sidebar-w:100%;}.app{flex-direction:column;}.sidebar{position:fixed;inset:0;width:100%;min-width:unset;z-index:100;transition:transform var(--t-normal);}.sidebar.hidden{transform:translateX(-100%);}.main{position:fixed;inset:0;z-index:50;}.top-bar .back-btn{display:flex;}.top-bar{padding:10px 12px;}.msg-area{padding:12px 10px 16px;}.tab{font-size:12px;padding:0 8px;}.s-filters{padding:8px 12px;}}@media (max-width:380px){.login-card{padding:35px 25px;}.login-card h1{font-size:26px;}.tab{font-size:11px;}}