:root{--primary:#0068ff;--primary-light:#e8f0ff;--primary-hover:#0052cc;--self-msg:#0084ff;--bg:#f0f2f5;--bg-hover:#f8fafc;--card:#fff;--text:#1a1a2e;--text2:#6b7280;--text3:#9ca3af;--border:#e5e7eb;--radius:12px;--radius-sm:8px;--radius-xs:6px;--shadow:0 1px 3px rgba(0,0,0,.08);--shadow-md:0 4px 12px rgba(0,0,0,.1);--transition:all .15s ease;--success:#22c55e;--warning:#f59e0b;--danger:#dc2626;--info:#3b82f6;--upload:#8b5cf6}
*{margin:0;padding:0;box-sizing:border-box}
body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI','PingFang SC','Microsoft YaHei',sans-serif;height:100vh;overflow:hidden;background:var(--bg);color:var(--text);font-size:14px;line-height:1.5}
/* Login */
.login-wrap{height:100vh;display:flex;align-items:center;justify-content:center}
.login-card{background:var(--card);border-radius:var(--radius);padding:40px 32px;width:360px;box-shadow:var(--shadow-md)}
.login-card h2{text-align:center;margin-bottom:24px;color:var(--primary);font-size:20px}
.login-card input{width:100%;padding:10px 14px;margin-bottom:12px;border:1px solid var(--border);border-radius:var(--radius-sm);font-size:14px;outline:none;transition:var(--transition)}
.login-card input:focus{border-color:var(--primary);box-shadow:0 0 0 2px var(--primary-light)}
.login-card button{width:100%;padding:10px;background:var(--primary);color:#fff;border:none;border-radius:var(--radius-sm);font-size:15px;cursor:pointer;font-weight:600;transition:var(--transition)}
.login-card button:hover{background:var(--primary-hover)}
.login-error{color:var(--danger);font-size:13px;margin-top:8px;display:none}

/* ===== Layout ===== */
.app{display:flex;height:100vh}
.sidebar{width:220px;background:#1a1a2e;color:#fff;display:flex;flex-direction:column;flex-shrink:0;overflow-y:auto}
.sidebar-logo{padding:20px;font-size:16px;font-weight:700;border-bottom:1px solid rgba(255,255,255,.1);display:flex;align-items:center;gap:10px}
.sidebar-logo span{background:var(--primary);width:32px;height:32px;border-radius:8px;display:flex;align-items:center;justify-content:center;font-size:14px}
.sidebar-nav{flex:1;padding:8px 0}
.nav-item{padding:12px 20px;cursor:pointer;display:flex;align-items:center;gap:10px;font-size:14px;transition:background .15s;color:rgba(255,255,255,.6)}
.nav-item:hover{background:rgba(255,255,255,.08);color:#fff}
.nav-item.active{background:rgba(0,104,255,.3);color:#fff;border-right:3px solid var(--primary)}
.nav-item .icon{font-size:18px}
.sidebar-footer{padding:16px 20px;border-top:1px solid rgba(255,255,255,.1);font-size:13px;color:rgba(255,255,255,.5)}
.sidebar-footer div{cursor:pointer;margin-bottom:4px}
.main{flex:1;display:flex;flex-direction:column;overflow:hidden}
.main-header{background:var(--card);padding:14px 24px;border-bottom:1px solid var(--border);display:flex;justify-content:space-between;align-items:center}
.main-header h2{font-size:17px}
.main-body{flex:1;overflow-y:auto;padding:24px}
/* Cards */
.card{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden;margin-bottom:16px}
.card-header{padding:14px 20px;border-bottom:1px solid var(--border);display:flex;justify-content:space-between;align-items:center}
.card-header h3{font-size:15px}
.card-body{padding:20px}
/* Tables */
table{width:100%;border-collapse:collapse}
th{background:var(--primary-light);color:var(--primary);padding:10px 14px;text-align:left;font-size:12px;font-weight:600}
td{padding:9px 14px;border-bottom:1px solid var(--border);font-size:13px}
tr:hover td{background:var(--bg-hover)}
/* Tags */
.tag{display:inline-block;padding:2px 8px;border-radius:4px;font-size:11px;font-weight:600}
.tag-a{background:#e8f5e9;color:#2e7d32}.tag-d{background:#ffebee;color:#c62828}
.tag-admin{background:#e3f2fd;color:#1565c0}.tag-sales{background:#f3e5f5;color:#6a1b9a}
.tag-logged{background:#e8f5e9;color:#2e7d32}.tag-pending{background:#fff8e1;color:#f57f17}
/* Chat layout */
.chat-layout{display:flex;gap:0;height:calc(100vh - 140px);min-height:500px;background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden}
.chat-sidebar{width:280px;border-right:1px solid var(--border);display:flex;flex-direction:column;flex-shrink:0}
.chat-sidebar-search{padding:12px;border-bottom:1px solid var(--border)}
.chat-sidebar-search input{width:100%;padding:8px 12px;border:1px solid var(--border);border-radius:20px;font-size:13px;outline:none;background:var(--bg)}
.chat-conv-list{flex:1;overflow-y:auto}
.conv-item{padding:10px 14px;cursor:pointer;display:flex;align-items:center;gap:10px;border-bottom:1px solid var(--border)}
.conv-item:hover,.conv-item.active{background:var(--primary-light)}
.conv-avatar{width:40px;height:40px;border-radius:50%;background:var(--primary-light);display:flex;align-items:center;justify-content:center;color:var(--primary);font-weight:700;font-size:16px;flex-shrink:0}
.conv-info{flex:1;min-width:0}.conv-name{font-size:14px;font-weight:600}.conv-preview{font-size:12px;color:var(--text2);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.conv-badge{background:var(--primary);color:#fff;font-size:10px;padding:2px 6px;border-radius:10px}
.chat-main{flex:1;display:flex;flex-direction:column;min-width:0}
.chat-header{padding:12px 20px;border-bottom:1px solid var(--border);display:flex;align-items:center;gap:10px}
.chat-body{flex:1;overflow-y:auto;padding:16px 20px;background:var(--bg);display:flex;flex-direction:column;gap:10px}
.msg-row{display:flex;gap:8px;max-width:70%}
.msg-row.self{align-self:flex-end;flex-direction:row-reverse}
.msg-row.other{align-self:flex-start}
.msg-avatar{width:32px;height:32px;border-radius:50%;background:var(--primary-light);display:flex;align-items:center;justify-content:center;color:var(--primary);font-weight:700;font-size:12px;flex-shrink:0}
.msg-bubble{padding:10px 14px;border-radius:16px;font-size:14px;word-break:break-word;line-height:1.5}
.msg-bubble.self{background:var(--self-msg);color:#fff;border-bottom-right-radius:4px}
.msg-bubble.other{background:#fff;color:var(--text);border-bottom-left-radius:4px;box-shadow:0 1px 2px rgba(0,0,0,.05)}
.msg-sender{font-size:11px;color:var(--text2);margin-bottom:2px}
.msg-time{font-size:10px;opacity:.6;text-align:right;margin-top:4px}
.msg-media img{max-width:200px;max-height:200px;border-radius:8px;cursor:pointer}
.msg-file{display:flex;align-items:center;gap:8px;padding:8px 12px;background:rgba(0,0,0,.05);border-radius:8px;font-size:13px}
.msg-file .fi{font-size:24px}.msg-file .fn{font-weight:500}
.msg-location{display:flex;align-items:flex-start;gap:10px;padding:12px 14px;min-width:220px}
.msg-location .loc-icon{font-size:28px;flex-shrink:0}
.msg-location .loc-info{flex:1;min-width:0}
.msg-location .loc-title{font-weight:600;font-size:14px;margin-bottom:2px}
.msg-location .loc-desc{font-size:12px;color:inherit;opacity:.7;word-break:break-word;line-height:1.4;margin-bottom:6px}
.msg-location .loc-link{display:inline-block;font-size:12px;color:var(--primary);text-decoration:none;padding:3px 8px;border-radius:6px;background:rgba(0,104,255,.08)}
.msg-location .loc-link:hover{background:rgba(0,104,255,.15)}
.msg-bubble.self .msg-location .loc-link{color:#fff;background:rgba(255,255,255,.2)}
.msg-bubble.self .msg-location .loc-link:hover{background:rgba(255,255,255,.3)}
.msg-gif{position:relative;display:inline-block}
.msg-gif .gif-badge{position:absolute;bottom:6px;left:6px;background:rgba(0,0,0,.65);color:#fff;font-size:10px;font-weight:700;padding:2px 6px;border-radius:4px;pointer-events:none;letter-spacing:.5px}
.msg-meta{font-size:11px;margin-top:6px;opacity:.6;word-break:break-all}
.msg-bubble.self .msg-meta{opacity:.8}
.msg-audio{justify-content:space-between}
.msg-play-btn{width:32px;height:32px;border-radius:50%;border:none;background:var(--primary);color:#fff;font-size:14px;cursor:pointer;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.msg-play-btn:hover{opacity:.85}
.translate-btn{font-size:11px;cursor:pointer;background:none;border:none;color:rgba(0,0,0,.4);margin-top:4px;padding:2px 6px;border-radius:4px}
.translate-btn:hover{}
.transcribe-btn{font-size:11px;cursor:pointer;background:none;border:none;color:rgba(0,0,0,.4);margin-top:4px;padding:2px 6px;border-radius:4px}
.transcribe-btn:hover{}
.transcribed-text{max-width:80%;font-size:13px;color:var(--text2);margin-top:4px;line-height:1.4;word-break:break-word}
/* Toolbar */
.toolbar{display:flex;gap:8px;align-items:center;flex-wrap:wrap;margin-bottom:16px}
.toolbar select,.toolbar input{padding:6px 10px;border:1px solid var(--border);border-radius:6px;font-size:13px;outline:none}
.btn{padding:7px 16px;border:none;border-radius:6px;font-size:13px;cursor:pointer;font-weight:500;transition:.15s}
.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover{opacity:.85}
.btn-outline{background:var(--card);color:var(--primary);border:1px solid var(--primary)}.btn-outline:hover{background:var(--primary-light)}
.btn-sm{padding:5px 10px;font-size:12px}
/* Modal */
.modal{display:none;position:fixed;top:0;left:0;width:100%;height:100%;background:rgba(0,0,0,.5);z-index:1000;align-items:center;justify-content:center}
.modal.show{display:flex}
.modal-content{background:var(--card);border-radius:var(--radius);padding:28px;min-width:400px;max-width:500px;box-shadow:0 20px 60px rgba(0,0,0,.2)}
.modal-content h3{margin-bottom:16px}
.fg{margin-bottom:14px}.fg label{display:block;font-size:13px;color:var(--text2);margin-bottom:4px}
.fg input,.fg select,.fg textarea{width:100%;padding:8px 12px;border:1px solid var(--border);border-radius:6px;font-size:14px;outline:none}
.fg input:focus,.fg select:focus{border-color:var(--primary)}
.fa{display:flex;gap:8px;justify-content:flex-end;margin-top:20px}
.stats-row{display:flex;gap:16px;margin-bottom:20px}
.stat-card{padding:16px 20px;background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);flex:1}
.stat-card .sv{font-size:28px;font-weight:800}.stat-card .sl{font-size:12px;color:var(--text2)}/* Sync Logs */
.sync-log-row{cursor:pointer}
.sync-log-row:hover td{background:var(--primary-light)}
.sync-log-status{display:inline-flex;align-items:center;gap:4px;padding:2px 10px;border-radius:12px;font-size:12px;font-weight:600}
.sync-log-status.running{background:#fff8e1;color:#f57f17}
.sync-log-status.success{background:#e8f5e9;color:#2e7d32}
.sync-log-status.error{background:#ffebee;color:#c62828}
.sync-log-detail{max-width:260px;font-size:12px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.sync-log-time{white-space:nowrap;font-size:12px;color:var(--text2)}
.sync-log-duration{white-space:nowrap;font-size:12px}
.sync-filter-bar{display:flex;gap:8px;align-items:center;flex-wrap:wrap;margin-bottom:12px}
.sync-filter-bar select,.sync-filter-bar input{padding:6px 10px;border:1px solid var(--border);border-radius:6px;font-size:13px;outline:none}

.msg-recommend{min-width:220px}
.msg-recommend .rec-header{font-size:11px;opacity:.6;margin-bottom:8px}
.msg-recommend .rec-card{display:flex;align-items:center;gap:10px;margin-bottom:8px}
.msg-recommend .rec-avatar{width:44px;height:44px;border-radius:50%;overflow:hidden;flex-shrink:0;background:var(--primary-light);display:flex;align-items:center;justify-content:center;font-size:18px;font-weight:600;color:var(--primary)}
.msg-recommend .rec-avatar img{width:100%;height:100%;object-fit:cover}
.msg-recommend .rec-name{font-weight:600;font-size:14px}
.msg-recommend .rec-id{font-size:11px;color:inherit;opacity:.5;margin-top:1px}
.msg-recommend .rec-qr{text-align:center}
.msg-recommend .rec-qr img{border-radius:6px;cursor:pointer}
.att-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:12px}
.att-card{background:var(--bg);border-radius:10px;overflow:hidden;transition:transform .15s}
.att-card:hover{transform:translateY(-2px)}
.att-thumb{height:160px;display:flex;align-items:center;justify-content:center;background:var(--border);overflow:hidden}
.att-thumb img{width:100%;height:100%;object-fit:cover;cursor:pointer}
.att-audio-preview,.att-file-preview{text-align:center;cursor:pointer;padding:20px}
.att-info{padding:8px 10px}
.att-name{font-size:12px;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-bottom:2px}
.att-meta{font-size:11px;color:var(--text2)}
.att-sender{font-size:11px;color:var(--primary);margin-top:1px}
.msg-video{position:relative;display:inline-block;cursor:pointer;border-radius:6px;overflow:hidden}
.msg-video img{display:block;max-width:240px;border-radius:6px}
.msg-video .video-play{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;font-size:40px;color:#fff;text-shadow:0 2px 8px rgba(0,0,0,.4);pointer-events:none}
.msg-video .video-duration{position:absolute;bottom:6px;right:6px;background:rgba(0,0,0,.7);color:#fff;font-size:11px;padding:2px 6px;border-radius:3px;pointer-events:none;line-height:1.4}
.msg-voice{display:flex;align-items:center;gap:12px;min-width:220px}
.voice-play-btn{width:38px;height:38px;border-radius:50%;border:none;background:var(--primary);color:#fff;font-size:16px;cursor:pointer;flex-shrink:0;display:flex;align-items:center;justify-content:center;transition:all .2s}
.voice-play-btn:hover{opacity:.9;transform:scale(1.05)}
.voice-play-btn[data-playing="1"]{background:var(--card);color:var(--primary);box-shadow:0 1px 4px rgba(0,0,0,.12)}
.msg-bubble.self .voice-play-btn{background:rgba(255,255,255,.25);color:#fff}
.msg-bubble.self .voice-play-btn[data-playing="1"]{background:var(--card);color:var(--self-msg)}
.voice-bar{flex:1;height:3px;background:rgba(0,0,0,.06);border-radius:1.5px;position:relative;overflow:hidden;min-width:90px}
.msg-bubble.self .voice-bar{background:rgba(255,255,255,.25)}
.voice-progress{position:absolute;left:0;top:0;height:100%;background:var(--primary);border-radius:1.5px;transition:width .2s linear}
.msg-bubble.self .voice-progress{background:#fff}
.voice-dur{font-size:13px;font-weight:500;opacity:.5;min-width:40px;text-align:right;font-variant-numeric:tabular-nums}
.msg-bubble.self .voice-dur{opacity:.75}
.fd-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:6px 16px}
.fd-item{font-size:13px;display:flex;flex-direction:column}
.fd-item label{font-size:10px;color:var(--text2);text-transform:uppercase;margin-bottom:2px}
.fd-item span{word-break:break-all}
.fd-item.full{grid-column:1/-1}

/* ===== 通用 UI 组件 ===== */

/* Buttons */
.btn{padding:7px 16px;border:none;border-radius:var(--radius-xs);font-size:13px;cursor:pointer;font-weight:500;transition:var(--transition);display:inline-flex;align-items:center;justify-content:center;gap:4px;white-space:nowrap}
.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover{background:var(--primary-hover)}
.btn-outline{background:var(--card);color:var(--primary);border:1px solid var(--primary)}.btn-outline:hover{background:var(--primary-light)}
.btn-sm{padding:4px 10px;font-size:12px;border-radius:var(--radius-xs)}
.btn-xs{padding:2px 8px;font-size:11px;border-radius:4px}
.btn-download,.btn-primary.btn-download{background:var(--primary);color:#fff}
.btn-download:disabled,.btn:disabled{opacity:.6;cursor:not-allowed}
.btn-danger{background:var(--danger);color:#fff}.btn-danger:hover{background:#b91c1c}

/* Tables */
table{width:100%;border-collapse:collapse;table-layout:auto}
th{background:var(--primary-light);color:var(--primary);padding:8px 12px;text-align:left;font-size:12px;font-weight:600;white-space:nowrap;border-bottom:2px solid var(--primary)}
td{padding:8px 12px;border-bottom:1px solid var(--border);font-size:13px;vertical-align:middle}
tr:hover td{background:var(--bg-hover)}
.table-wrap{overflow-x:auto;max-width:100%}
.td-nowrap{white-space:nowrap}
.td-sm{font-size:12px}
.td-ellipsis{max-width:160px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* Tags */
.tag{display:inline-block;padding:2px 8px;border-radius:4px;font-size:11px;font-weight:600;line-height:1.5}
.tag-a{background:#e8f5e9;color:#2e7d32}.tag-d{background:#ffebee;color:#c62828}
.tag-admin{background:#e3f2fd;color:#1565c0}.tag-sales{background:#f3e5f5;color:#6a1b9a}
.tag-logged{background:#e8f5e9;color:#2e7d32}.tag-pending{background:#fff8e1;color:#f57f17}
.tag-success{background:#e8f5e9;color:#2e7d32}
.tag-warning{background:#fff8e1;color:#f57f17}
.tag-error{background:#ffebee;color:#c62828}
.tag-info{background:#e3f2fd;color:#1565c0}

/* Cards */
.card{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden;margin-bottom:16px}
.card-header{padding:12px 18px;border-bottom:1px solid var(--border);display:flex;justify-content:space-between;align-items:center;gap:12px}
.card-header h3{font-size:15px;font-weight:600}
.card-body{padding:16px 18px}
.card-body.no-padding{padding:0}

/* Toolbar */
.toolbar{display:flex;gap:8px;align-items:center;flex-wrap:wrap;margin-bottom:14px}
.toolbar select,.toolbar input{padding:6px 10px;border:1px solid var(--border);border-radius:var(--radius-xs);font-size:13px;outline:none;background:var(--card);transition:var(--transition)}
.toolbar select:focus,.toolbar input:focus{border-color:var(--primary)}
.toolbar-row{margin-top:8px}

/* Form */
.fg{margin-bottom:12px}
.fg label{display:block;font-size:13px;color:var(--text2);margin-bottom:4px;font-weight:500}
.fg input,.fg select,.fg textarea{width:100%;padding:8px 12px;border:1px solid var(--border);border-radius:var(--radius-xs);font-size:14px;outline:none;transition:var(--transition);background:var(--card)}
.fg input:focus,.fg select:focus,.fg textarea:focus{border-color:var(--primary);box-shadow:0 0 0 2px var(--primary-light)}
.fa{display:flex;gap:8px;justify-content:flex-end;margin-top:16px}

/* Modal */
.modal{display:none;position:fixed;top:0;left:0;width:100%;height:100%;background:rgba(0,0,0,.45);z-index:1000;align-items:center;justify-content:center}
.modal.show{display:flex}
.modal-content{background:var(--card);border-radius:var(--radius);padding:24px;min-width:400px;max-width:560px;box-shadow:var(--shadow-md);max-height:80vh;overflow-y:auto}
.modal-content h3{font-size:16px;margin-bottom:14px}
.modal-content .close{position:absolute;top:12px;right:16px;font-size:22px;cursor:pointer;color:var(--text3);background:none;border:none;line-height:1}
.modal-content .close:hover{color:var(--text)}
.modal-content{position:relative}

/* Toast */
.toast{position:fixed;top:20px;right:20px;padding:12px 20px;border-radius:var(--radius-sm);color:#fff;font-size:14px;z-index:2000;display:none;box-shadow:var(--shadow-md);animation:fadeIn .3s ease}
.toast.s{background:var(--success)}.toast.e{background:var(--danger)}.toast.w{background:var(--warning)}
@keyframes fadeIn{from{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:translateY(0)}}

/* Empty state */
.empty{text-align:center;padding:60px 20px;color:var(--text3);font-size:14px}
.empty p{margin-top:8px}

/* Scrollbar */
::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--border);border-radius:3px}
::-webkit-scrollbar-thumb:hover{background:var(--text3)}

/* Stats */
.stats-row{display:flex;gap:16px;margin-bottom:20px;flex-wrap:wrap}
.stat-card{padding:16px 20px;background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);flex:1;min-width:140px}
.stat-card .sv{font-size:28px;font-weight:800;color:var(--primary)}
.stat-card .sl{font-size:12px;color:var(--text2);margin-top:4px}
.translated-text{max-width:80%;font-size:13px;color:var(--text2);margin-top:4px;padding:4px 0;line-height:1.4;word-break:break-word;overflow-wrap:break-word}

/* Pagination */
.pagination{display:flex;justify-content:space-between;align-items:center;padding:10px 16px;border-top:1px solid var(--border);font-size:12px;color:var(--text2)}
.pagination .pg-info{flex-shrink:0}
.pagination .pg-btns{display:flex;gap:4px}
.pagination .pg-btn{padding:4px 10px;font-size:12px;min-width:30px;border:1px solid var(--border);border-radius:var(--radius-xs);background:var(--card);color:var(--text);cursor:pointer;transition:var(--transition)}
.pagination .pg-btn:hover{background:var(--primary-light);border-color:var(--primary)}
.pagination .pg-btn.active{background:var(--primary);color:#fff;border-color:var(--primary)}
.pagination .pg-btn:disabled{opacity:.4;cursor:not-allowed}