.mobile-simulator{height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;background:#1a1a2e;gap:24px}.phone-frame{width:390px;height:844px;max-height:calc(100vh - 80px);background:#fff;border-radius:44px;overflow:hidden;box-shadow:0 0 0 4px #333,0 0 0 6px #555,0 20px 60px #00000080;display:flex;flex-direction:column;position:relative}.phone-notch{height:44px;background:#fff;display:flex;align-items:flex-end;justify-content:center;padding-bottom:8px;flex-shrink:0;border-radius:44px 44px 0 0}.phone-camera{width:80px;height:28px;background:#1a1a2e;border-radius:20px}.phone-screen{flex:1;overflow:hidden;position:relative}.phone-home-bar{height:20px;background:#fff;display:flex;align-items:center;justify-content:center;flex-shrink:0;padding-bottom:6px;border-radius:0 0 44px 44px}.phone-home-bar:after{content:"";width:120px;height:5px;background:#333;border-radius:3px}.sim-close-btn{background:#555;color:#fff;border:none;border-radius:24px;padding:12px 20px;font-size:14px;cursor:pointer;box-shadow:var(--shadow-md, 0 4px 16px rgba(0,0,0,.12));font-family:inherit;transition:all .2s ease;position:static}.sim-close-btn:hover{opacity:.85;transform:scale(1.05)}@media(max-width:420px){.phone-frame{width:100%;border-radius:0;box-shadow:none}.phone-notch,.phone-home-bar{display:none}}:root{--primary: #3370ff;--primary-dark: #2b5cdb;--primary-light: #5590ff;--primary-bg: #e8f3ff;--primary-bg-hover: #eef4ff;--primary-bg-deep: #d4e8ff;--text-primary: #1f2329;--text-secondary: #646a73;--text-tertiary: #8f959e;--text-disabled: #c0c4cc;--bg-body: #f5f6f7;--bg-card: #fff;--bg-section: #fafbfc;--bg-hover: #f5f6f7;--bg-selected: #f5f8ff;--border: #e5e6e8;--divider: #e5e6e8;--success: #52c41a;--warning: #e6a23c;--danger: #ff4d4f;--danger-bg: #ffeaea;--danger-bg-light: #fff1f0;--radius-sm: 4px;--radius-md: 6px;--radius-lg: 8px;--shadow-sm: 0 2px 8px rgba(0, 0, 0, .08);--shadow-md: 0 4px 16px rgba(0, 0, 0, .12);--font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial, sans-serif;--sidebar-w: 56px;--middlebar-w: 280px;--transition: .2s ease;--break-sm: 768px;--break-md: 1024px;--break-lg: 1440px}*{margin:0;padding:0;box-sizing:border-box}html,body,#app{height:100%;font-family:var(--font-family);font-size:12px;color:var(--text-primary);background:var(--bg-body);-webkit-font-smoothing:antialiased}a{color:var(--primary);text-decoration:none}::-webkit-scrollbar{width:5px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:#d9d9d9;border-radius:3px}::-webkit-scrollbar-thumb:hover{background:#bfbfbf}.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;border:none;cursor:pointer;border-radius:var(--radius-sm);font-size:12px;font-family:inherit;transition:all var(--transition);white-space:nowrap;-webkit-user-select:none;user-select:none}.btn-sm{height:32px;padding:0 14px;font-size:11px}.btn-md{height:36px;padding:0 20px}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover{background:var(--primary-dark)}.btn-primary:active{background:var(--primary-light)}.btn-secondary{background:var(--bg-card);color:var(--text-secondary);border:1px solid var(--border)}.btn-secondary:hover{background:var(--bg-hover);border-color:#c9cdd4}.btn-danger{background:transparent;color:var(--danger);border:1px solid var(--danger)}.btn-danger:hover{background:var(--danger-bg-light)}.btn-warning{background:var(--warning);color:#fff}.btn-warning:hover{background:#d4912e}input,textarea{font-family:inherit;font-size:12px;color:var(--text-primary);border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--bg-card);outline:none;transition:border var(--transition);padding:0 10px;height:32px;width:100%}input:focus,textarea:focus{border-color:var(--primary)}textarea{padding:8px 10px;height:auto;resize:none}::placeholder{color:var(--text-disabled)}.login-page{height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#e8f3ff,#f0f5ff,#fafbfc)}.login-card{width:400px;padding:44px 40px 32px;background:var(--bg-card);border-radius:var(--radius-lg);box-shadow:var(--shadow-md);border:1px solid var(--border)}.login-error{padding:10px 14px;background:#fff1f0;border:1px solid #ffccc7;border-radius:6px;color:#cf1322;font-size:13px;margin-bottom:16px;word-break:break-word}.login-logo{text-align:center;margin-bottom:32px}.login-logo .dot{display:inline-block;width:8px;height:8px;border-radius:50%;background:var(--primary);margin:0 3px}.login-logo h1{font-size:20px;font-weight:600;color:var(--text-primary);margin-top:8px}.login-logo p{font-size:11px;color:var(--text-tertiary);margin-top:4px}.login-tabs{margin-bottom:8px}.login-tabs .tab-nav{display:flex;border-bottom:1px solid var(--border);margin-bottom:24px}.login-tabs .tab-nav 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.icon-btn{width:36px;height:36px;border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;cursor:pointer;color:var(--text-tertiary);font-size:16px;transition:all var(--transition);position:relative}.sidebar-icons .icon-btn:hover{background:var(--bg-hover);color:var(--primary)}.sidebar-icons .icon-btn.active{background:var(--primary-bg);color:var(--primary)}.conv-panel{width:var(--middlebar-w);min-width:240px;background:var(--bg-section);border-right:1px solid var(--border);display:flex;flex-direction:column}.conv-panel-header{padding:14px 16px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--border)}.conv-panel-header h2{font-size:14px;font-weight:600;color:var(--text-primary)}.search-bar{padding:10px 12px;position:relative;border-bottom:1px solid var(--border)}.search-bar 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p{font-size:13px}.online-dot{display:inline-block;width:7px;height:7px;border-radius:50%;background:var(--success);margin-left:4px;vertical-align:middle;position:relative;top:-1px}.offline-text{font-size:10px;color:var(--text-disabled)}.dialog-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#0000004d;display:flex;align-items:center;justify-content:center;z-index:100}.dialog{background:var(--bg-card);border-radius:var(--radius-lg);box-shadow:var(--shadow-md);width:420px;max-width:90vw;max-height:80vh;overflow:hidden;display:flex;flex-direction:column}.dialog-header{padding:16px 20px;border-bottom:1px solid var(--border);font-size:14px;font-weight:600;display:flex;align-items:center;justify-content:space-between}.dialog-body{padding:20px;overflow-y:auto}.dialog-footer{padding:12px 20px;border-top:1px solid var(--border);display:flex;justify-content:flex-end;gap:8px}.portal-page{height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#e8f3ff,#f0f5ff,#fafbfc)}.portal-card{text-align:center;padding:48px 40px;background:var(--bg-card);border-radius:var(--radius-lg);box-shadow:var(--shadow-md);border:1px solid var(--border);width:380px;max-width:90vw}.portal-card .icon{font-size:48px;margin-bottom:16px}.portal-card h2{font-size:18px;font-weight:600;margin-bottom:8px}.portal-card p{font-size:12px;color:var(--text-tertiary);margin-bottom:20px}.mobile-tabs{display:none;position:fixed;bottom:0;left:0;right:0;z-index:50;height:56px;background:var(--bg-card);border-top:1px solid var(--border);justify-content:space-around;align-items:center}.mobile-tab{display:flex;flex-direction:column;align-items:center;gap:2px;cursor:pointer;padding:6px 16px;color:var(--text-tertiary);transition:all 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.login-card{width:90%;padding:32px 24px}.sim-mobile .chat-layout .sidebar-icons{display:none}.sim-mobile .chat-layout .conv-panel{width:100%;min-width:0}.sim-mobile .chat-layout .conv-panel.chat-open,.sim-mobile .chat-layout .chat-main{display:none}.sim-mobile .chat-layout .chat-main.chat-open{display:flex}.sim-mobile .chat-layout .msg-row{max-width:90%}@media(min-width:769px){.chat-main-header .back-btn{display:none!important}}.sim-mobile .chat-layout .chat-main-header .back-btn{display:inline-flex!important}@media(max-width:480px){.msg-row{max-width:95%}.chat-messages{padding:12px}.chat-input-bar{padding:10px 12px}}