* { box-sizing: border-box; margin: 0; padding: 0; }

/* --- 布局基础 --- */
#app { height: 100dvh; }
.layout { display: flex; height: 100dvh; width: 100vw; overflow: hidden; }
.main { flex: 1; display: flex; flex-direction: column; min-width: 0; background: var(--bg-body); }

/* --- 侧边栏 (完全扁平化) --- */
.sidebar { width: 240px; flex-shrink: 0; background: var(--bg-card); border-right: 1px solid var(--border-light); padding: 24px 16px; display: flex; flex-direction: column; transition: transform 0.3s; z-index: 100; }
.sidebar h2 { font-size: 20px; font-weight: 800; letter-spacing: 1px; color: var(--brand-primary); margin-bottom: 32px; padding-left: 8px; }
.nav-group { font-size: 12px; font-weight: 600; color: #94a3b8; margin: 20px 8px 8px; letter-spacing: 0.5px; }
.nav-item { padding: 10px 12px; border-radius: 8px; color: var(--text-muted); cursor: pointer; font-size: 14px; font-weight: 500; margin-bottom: 4px; transition: 0.2s; }
.nav-item:hover { background: #f1f5f9; color: var(--text-main); }
.nav-item.active { background: #eff6ff; color: var(--brand-primary); font-weight: 600; }

/* --- 顶部导航 --- */
.topbar { height: 64px; padding: 0 24px; border-bottom: 1px solid var(--border-light); background: var(--bg-card); display: flex; justify-content: space-between; align-items: center; z-index: 50; }
.topbar-left { display: flex; align-items: center; gap: 16px; }
.page-title { font-size: 16px; font-weight: 600; }
.menu-btn { display: none; background: none; border: none; font-size: 24px; cursor: pointer; color: var(--text-main); }
.icon-btn { background: none; border: none; color: var(--text-muted); cursor: pointer; padding: 8px; border-radius: 8px; transition: 0.2s; display: flex; align-items: center; justify-content: center; }
.icon-btn:hover { background: #f1f5f9; color: var(--text-main); }

/* --- 多页签 --- */
.tabs-bar { display: flex; overflow-x: auto; padding: 0 16px; background: var(--bg-card); border-bottom: 1px solid var(--border-light); scrollbar-width: none; }
.tabs-bar::-webkit-scrollbar { display: none; }
.tab-item { padding: 12px 16px; font-size: 13px; font-weight: 500; color: var(--text-muted); cursor: pointer; display: flex; align-items: center; gap: 8px; border-bottom: 2px solid transparent; transition: 0.2s; white-space: nowrap; }
.tab-item.active { color: var(--brand-primary); border-bottom-color: var(--brand-primary); }
.tab-close { font-size: 16px; color: #cbd5e1; border-radius: 50%; width: 18px; height: 18px; display: grid; place-items: center; transition: 0.2s; }
.tab-close:hover { background: #fee2e2; color: #ef4444; }

/* --- 内容区：极其宽裕的留白 --- */
.content { padding: 24px; overflow-y: auto; flex: 1; -webkit-overflow-scrolling: touch; }
.content::-webkit-scrollbar { width: 0; }

/* --- 卡片：去掉死板边框，用高级阴影替代 --- */
.card, .table-container { background: var(--bg-card); border-radius: var(--radius-lg); padding: 24px; box-shadow: var(--shadow-md); border: 1px solid rgba(0,0,0,0.02); margin-bottom: 24px; }
.kpi-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 20px; margin-bottom: 24px; }
.kpi-label { font-size: 14px; color: var(--text-muted); font-weight: 500; margin-bottom: 8px; }
.kpi-val { font-size: 36px; font-weight: 800; letter-spacing: -1px; color: var(--text-main); }

/* --- 表格：抛弃竖线，只留极浅横线 --- */
.table { width: 100%; border-collapse: collapse; text-align: left; }
.table th { padding: 16px 12px; font-size: 13px; font-weight: 600; color: var(--text-muted); border-bottom: 1px solid var(--border-light); background: #fcfcfd; }
.table td { padding: 16px 12px; font-size: 14px; color: var(--text-main); border-bottom: 1px solid var(--border-light); vertical-align: middle; }
.table tbody tr:last-child td { border-bottom: none; }
.table tbody tr:hover { background: #f8fafc; }

/* --- 按钮：圆润、灵动 --- */
.btn { width: 100%; padding: 10px 16px; background: var(--brand-primary); border: none; border-radius: 8px; color: #fff; font-size: 14px; font-weight: 600; cursor: pointer; transition: 0.2s; box-shadow: var(--shadow-sm); display: inline-flex; align-items: center; justify-content: center; gap: 6px; margin-top: 8px; }
.btn:hover { background: var(--brand-hover); transform: translateY(-1px); box-shadow: var(--shadow-md); }
.btn-sm { width: auto; padding: 6px 12px; margin: 0 4px 0 0; font-size: 13px; border-radius: 6px; }

/* --- 状态标签 --- */
.badge { padding: 4px 10px; border-radius: 999px; font-size: 12px; font-weight: 600; display: inline-flex; align-items: center; }
.badge-success { background: #dcfce7; color: #166534; }
.badge-warning { background: #fef9c3; color: #854d0e; }
.badge-danger { background: #fee2e2; color: #991b1b; }
.badge-info { background: #e0f2fe; color: #075985; }

/* --- 输入框 --- */
.filter-input, .form-select, .field input { background: var(--bg-card); border: 1px solid var(--border-light); border-radius: 8px; padding: 10px 14px; color: var(--text-main); font-size: 14px; outline: none; transition: 0.2s; }
.filter-input:focus, .form-select:focus, .field input:focus { border-color: var(--brand-primary); box-shadow: 0 0 0 3px rgba(37,99,235,0.1); }
.toolbar { display: flex; justify-content: space-between; align-items: center; margin-bottom: 20px; gap: 12px; flex-wrap: wrap; }
.toolbar-left, .toolbar-right { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; }

/* --- 遮罩与弹窗 --- */
.overlay { position: fixed; inset: 0; background: rgba(15,23,42,0.4); backdrop-filter: blur(4px); z-index: 90; opacity: 0; pointer-events: none; transition: 0.3s; }
.overlay.show { opacity: 1; pointer-events: auto; }
.modal-mask { position: fixed; inset: 0; z-index: 999; display: flex; align-items: center; justify-content: center; opacity: 0; pointer-events: none; transition: 0.2s; }
.modal-mask.show { opacity: 1; pointer-events: auto; }
.modal-box { background: var(--bg-card); width: 90%; max-width: 440px; border-radius: var(--radius-lg); padding: 24px; box-shadow: var(--shadow-lg); transform: translateY(20px); transition: 0.3s; }
.modal-mask.show .modal-box { transform: translateY(0); }
.modal-title { font-size: 18px; font-weight: 700; margin-bottom: 20px; color: var(--text-main); }
.modal-actions { display: flex; justify-content: flex-end; gap: 12px; margin-top: 24px; }
.btn-cancel { background: #f1f5f9; color: var(--text-main); box-shadow: none; }
.btn-cancel:hover { background: #e2e8f0; }

/* --- 骨架屏与动画 --- */
.skeleton { background: linear-gradient(90deg, #f1f5f9 25%, #e2e8f0 50%, #f1f5f9 75%); background-size: 200% 100%; animation: skel 1.5s infinite; border-radius: var(--radius-lg); height: 120px; margin-bottom: 20px; }
@keyframes skel { 0% { background-position: 200% 0; } 100% { background-position: -200% 0; } }

/* --- 移动端适配 --- */
@media (max-width: 768px) {
  .sidebar { position: fixed; left: 0; top: 0; bottom: 0; transform: translateX(-100%); }
  .sidebar.open { transform: translateX(0); }
  .menu-btn { display: block; }
  .content { padding: 16px; }
  .card, .table-container { padding: 16px; }
  .kpi-val { font-size: 28px; }
  .hide-mobile { display: none !important; }
}

/* --- 客服工作台布局 --- */
.chat-layout { display: flex; height: calc(100dvh - 180px); background: var(--bg-card); border-radius: var(--radius-lg); box-shadow: var(--shadow-md); overflow: hidden; border: 1px solid var(--border-light); }
.chat-sidebar { width: 300px; border-right: 1px solid var(--border-light); display: flex; flex-direction: column; background: #f8fafc; }
.chat-search { padding: 16px; border-bottom: 1px solid var(--border-light); }
.chat-list { flex: 1; overflow-y: auto; }
.chat-item { display: flex; align-items: center; gap: 12px; padding: 16px; cursor: pointer; transition: 0.2s; border-bottom: 1px solid var(--border-light); }
.chat-item:hover, .chat-item.active { background: #eff6ff; }
.chat-avatar { width: 40px; height: 40px; background: var(--brand-primary); border-radius: 50%; display: grid; place-items: center; color: #fff; font-weight: bold; font-size: 14px; flex-shrink: 0; }
.chat-info { flex: 1; min-width: 0; }
.chat-name { font-size: 14px; font-weight: 600; color: var(--text-main); margin-bottom: 4px; display: flex; justify-content: space-between; }
.chat-msg-preview { font-size: 12px; color: var(--text-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

.chat-main { flex: 1; display: flex; flex-direction: column; background: #fff; }
.chat-header { padding: 16px 24px; border-bottom: 1px solid var(--border-light); display: flex; justify-content: space-between; align-items: center; }
.chat-history { flex: 1; padding: 24px; overflow-y: auto; background: #fcfcfd; display: flex; flex-direction: column; gap: 16px; }
.msg-bubble { max-width: 70%; display: flex; flex-direction: column; }
.msg-bubble.left { align-self: flex-start; }
.msg-bubble.right { align-self: flex-end; align-items: flex-end; }
.msg-content { padding: 12px 16px; border-radius: 12px; font-size: 14px; line-height: 1.5; word-break: break-all; }
.msg-bubble.left .msg-content { background: #fff; border: 1px solid var(--border-light); border-top-left-radius: 2px; }
.msg-bubble.right .msg-content { background: var(--brand-primary); color: #fff; border-top-right-radius: 2px; }
.msg-time { font-size: 11px; color: #94a3b8; margin-top: 4px; }

.chat-input-area { padding: 16px 24px; border-top: 1px solid var(--border-light); background: #fff; display: flex; flex-direction: column; gap: 8px; }
.quick-replies { display: flex; gap: 8px; overflow-x: auto; }
.quick-reply-btn { padding: 6px 12px; background: #f1f5f9; border: 1px solid var(--border-light); border-radius: 16px; font-size: 12px; color: var(--text-muted); cursor: pointer; white-space: nowrap; }
.chat-input-row { display: flex; gap: 12px; }
.chat-input-row textarea { flex: 1; height: 60px; padding: 12px; border: 1px solid var(--border-light); border-radius: 8px; resize: none; outline: none; font-family: inherit; font-size: 14px; }
.chat-input-row textarea:focus { border-color: var(--brand-primary); }

@media (max-width: 768px) {
  .chat-layout { height: calc(100dvh - 150px); }
  .chat-sidebar { display: none; }
  .chat-sidebar.mobile-show { display: flex; width: 100%; position: absolute; z-index: 10; height: 100%; }
}

/* --- 高级设置面板样式 --- */
.settings-layout { display: flex; gap: 24px; align-items: flex-start; }
.settings-sidebar { width: 200px; background: #fff; border-radius: var(--radius-lg); box-shadow: var(--shadow-sm); overflow: hidden; flex-shrink: 0; border: 1px solid var(--border-light); }
.settings-menu-item { padding: 16px 20px; font-size: 14px; font-weight: 500; color: var(--text-muted); cursor: pointer; transition: 0.2s; border-left: 3px solid transparent; }
.settings-menu-item:hover { background: #f8fafc; }
.settings-menu-item.active { background: #eff6ff; color: var(--brand-primary); border-left-color: var(--brand-primary); font-weight: 600; }

.settings-content { flex: 1; background: #fff; border-radius: var(--radius-lg); box-shadow: var(--shadow-sm); padding: 32px; border: 1px solid var(--border-light); }
.settings-section-title { font-size: 18px; font-weight: 700; margin-bottom: 8px; color: var(--text-main); }
.settings-section-desc { font-size: 13px; color: var(--text-muted); margin-bottom: 24px; padding-bottom: 16px; border-bottom: 1px solid var(--border-light); }

/* 表单行 */
.setting-row { display: flex; justify-content: space-between; align-items: center; padding: 16px 0; border-bottom: 1px dashed var(--border-light); }
.setting-row:last-child { border-bottom: none; }
.setting-info { flex: 1; padding-right: 20px; }
.setting-label { font-size: 14px; font-weight: 600; color: var(--text-main); margin-bottom: 4px; }
.setting-hint { font-size: 12px; color: var(--text-muted); }
.setting-control { width: 300px; display: flex; justify-content: flex-end; align-items: center; }
.setting-control input[type="text"], .setting-control input[type="password"], .setting-control select { width: 100%; padding: 10px 14px; border: 1px solid var(--border-light); border-radius: 8px; font-size: 14px; outline: none; }
.setting-control input:focus, .setting-control select:focus { border-color: var(--brand-primary); }

/* 高级开关 Toggle */
.toggle-switch { position: relative; display: inline-block; width: 44px; height: 24px; }
.toggle-switch input { opacity: 0; width: 0; height: 0; }
.slider { position: absolute; cursor: pointer; top: 0; left: 0; right: 0; bottom: 0; background-color: #cbd5e1; transition: .4s; border-radius: 34px; }
.slider:before { position: absolute; content: ""; height: 18px; width: 18px; left: 3px; bottom: 3px; background-color: white; transition: .4s; border-radius: 50%; }
input:checked + .slider { background-color: var(--brand-primary); }
input:checked + .slider:before { transform: translateX(20px); }

/* 主题色选择 */
.theme-colors { display: flex; gap: 12px; }
.color-dot { width: 32px; height: 32px; border-radius: 50%; cursor: pointer; border: 2px solid transparent; transition: 0.2s; }
.color-dot.active { border-color: #111827; transform: scale(1.1); }
.color-dot.blue { background: #2563eb; }
.color-dot.green { background: #10b981; }
.color-dot.purple { background: #8b5cf6; }
.color-dot.orange { background: #f97316; }

@media (max-width: 768px) {
  .settings-layout { flex-direction: column; }
  .settings-sidebar { width: 100%; display: flex; overflow-x: auto; border-radius: 8px; }
  .settings-menu-item { padding: 12px 16px; white-space: nowrap; border-left: none; border-bottom: 3px solid transparent; }
  .settings-menu-item.active { border-left: none; border-bottom-color: var(--brand-primary); }
  .settings-content { padding: 20px; width: 100%; }
  .setting-row { flex-direction: column; align-items: flex-start; gap: 12px; }
  .setting-control { width: 100%; justify-content: flex-start; }
}

/* ================= 终极页面滚动修复 ================= */
html, body {
  height: 100%;
  overflow: hidden;
  margin: 0;
  padding: 0;
  -webkit-overflow-scrolling: touch;
}

#app {
  height: 100dvh;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.layout {
  display: flex;
  height: 100dvh;
  width: 100vw;
  overflow: hidden;
}

.main {
  flex: 1;
  display: flex;
  flex-direction: column;
  height: 100dvh;
  overflow: hidden;
  min-width: 0;
}

/* 核心：强制内容区可以被挤压，并触发滚动 */
.content {
  flex: 1;
  min-height: 0; /* 这句是解锁 flex 滚动的神级属性 */
  overflow-y: auto !important;
  overflow-x: hidden;
  padding: 24px;
  padding-bottom: 120px; /* 底部多留点空间，防止被悬浮球挡住 */
  -webkit-overflow-scrolling: touch;
}

/* 解决设置页面里的布局溢出问题 */
.settings-layout {
  min-height: min-content;
  height: auto;
}

/* ================= 修复侧边栏菜单无法上下滑动 ================= */
.sidebar {
  height: 100dvh !important;
  overflow-y: auto !important; /* 允许侧边栏内部滚动 */
  overflow-x: hidden;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none; /* 隐藏滚动条 (Firefox) */
}

/* 隐藏侧边栏的滚动条 (Chrome/Safari) */
.sidebar::-webkit-scrollbar {
  display: none;
}