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var(--divider)}.clickable-row{cursor:pointer}.clickable-row:hover{background:var(--surface-muted)}.empty{text-align:center;padding:40px;color:var(--text-muted)}.pagination{display:flex;justify-content:center;align-items:center;gap:20px}.pagination button{padding:8px 16px;border:2px solid var(--border);background:var(--surface);border-radius:6px;cursor:pointer;font-size:14px;transition:all .2s;color:var(--text)}.pagination button:hover:not(:disabled){border-color:#667eea;color:#667eea}.pagination button:disabled{opacity:.5;cursor:not-allowed}.loading{text-align:center;padding:60px 20px;color:var(--text-muted);font-size:16px}.conversation-detail{padding:20px}.detail-header{display:flex;align-items:center;gap:20px;margin-bottom:30px}.back-btn{padding:8px 16px;background:#667eea;color:#fff;border:none;border-radius:6px;font-size:14px;font-weight:500;cursor:pointer;transition:background .2s}.back-btn:hover{background:#5568d3}.detail-header 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var(--border);border-radius:10px;background:var(--surface-alt);color:var(--text)}.save-btn{padding:10px 14px;border:none;border-radius:12px;background:var(--accent);color:var(--accent-contrast);font-weight:600;cursor:pointer}.save-btn:hover{filter:brightness(.95)}.layout{min-height:100vh;display:flex;flex-direction:column}.header{background:var(--header-bg);border-bottom:1px solid var(--border);padding:20px 40px;display:flex;justify-content:space-between;align-items:center;box-shadow:0 2px 4px var(--shadow)}.header h1{color:var(--text);font-size:24px;font-weight:600}.nav{display:flex;gap:20px}.nav a{color:var(--nav-link);text-decoration:none;font-size:14px;font-weight:500;transition:color .2s}.nav a:hover{color:var(--nav-link-hover);text-decoration:underline}.user-info{display:flex;align-items:center;gap:20px}.user-info span{color:var(--text-muted);font-size:14px}.theme-toggle{background:transparent;color:var(--text);border:1px solid var(--border);padding:8px 12px;border-radius:6px;cursor:pointer;font-size:14px;font-weight:500;transition:background .2s,border-color .2s,color .2s}.theme-toggle:hover{background:var(--surface-muted)}.logout-btn{background:#667eea;color:#fff;border:none;padding:8px 16px;border-radius:6px;cursor:pointer;font-size:14px;font-weight:500;transition:background .2s}.logout-btn:hover{background:#5568d3}.main{flex:1;max-width:1400px;width:100%;margin:40px auto;padding:0 40px}*{margin:0;padding:0;box-sizing:border-box}:root{--page-bg: #f3f0ff;--surface: #ffffff;--surface-muted: #f8f9fa;--header-bg: #ffffff;--text: #2b2b2b;--text-muted: #666666;--border: #e0e0e0;--divider: #e0e0e0;--divider-strong: #d0d0d0;--shadow: rgba(0, 0, 0, .05);--nav-link: #667eea;--nav-link-hover: #5568d3;--danger: #c33}:root[data-theme=dark]{--page-bg: #0f1118;--surface: #171a23;--surface-muted: #1f2330;--header-bg: #121521;--text: #e6e8ee;--text-muted: #a7adbd;--border: #2a2f3d;--divider: #2a2f3d;--divider-strong: #3a4152;--shadow: rgba(0, 0, 0, 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