/* ================================================================
   短信中转后台 · 自定义 UI 设计系统
   完全自研，无框架依赖，响应式适配手机/电脑
   ================================================================ */

:root {
  --c-primary: #6366f1;
  --c-primary-dark: #4f46e5;
  --c-primary-light: #eef2ff;
  --c-bg: #f1f5f9;
  --c-surface: #ffffff;
  --c-border: #e2e8f0;
  --c-text: #0f172a;
  --c-text-2: #475569;
  --c-text-3: #94a3b8;
  --c-success: #10b981;
  --c-success-bg: #ecfdf5;
  --c-warning: #f59e0b;
  --c-warning-bg: #fffbeb;
  --c-danger: #ef4444;
  --c-danger-bg: #fef2f2;
  --c-info: #3b82f6;
  --c-info-bg: #eff6ff;
  --sidebar-w: 248px;
  --radius: 10px;
  --radius-sm: 6px;
  --shadow: 0 1px 3px rgba(0,0,0,.06), 0 1px 2px rgba(0,0,0,.04);
  --shadow-md: 0 4px 12px rgba(0,0,0,.08);
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  background: var(--c-bg);
  color: var(--c-text);
  font-size: 14px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--c-primary); text-decoration: none; }
a:hover { color: var(--c-primary-dark); }

/* ====== 应用骨架 ====== */
.app-shell { display: flex; min-height: 100vh; }

/* ====== 侧边栏 ====== */
.sidebar {
  width: var(--sidebar-w);
  background: #1e293b;
  color: #cbd5e1;
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0; left: 0; bottom: 0;
  z-index: 100;
  transition: transform .25s ease;
}
.sidebar-brand {
  padding: 18px 20px;
  font-size: 16px;
  font-weight: 700;
  color: #fff;
  display: flex; align-items: center; gap: 10px;
  border-bottom: 1px solid rgba(255,255,255,.08);
}
.sidebar-brand .logo {
  width: 32px; height: 32px; border-radius: 8px;
  background: linear-gradient(135deg, var(--c-primary), var(--c-primary-dark));
  display: flex; align-items: center; justify-content: center;
  font-size: 16px;
}
.sidebar-nav { flex: 1; padding: 12px 10px; overflow-y: auto; }
.nav-item {
  display: flex; align-items: center; gap: 12px;
  padding: 10px 14px; border-radius: var(--radius-sm);
  color: #94a3b8; font-size: 14px; margin-bottom: 2px;
  transition: all .15s;
}
.nav-item:hover { background: rgba(255,255,255,.06); color: #e2e8f0; }
.nav-item.active { background: var(--c-primary); color: #fff; font-weight: 500; }
.nav-item svg { width: 18px; height: 18px; flex-shrink: 0; }
.sidebar-footer { padding: 14px 20px; border-top: 1px solid rgba(255,255,255,.08); font-size: 12px; color: #64748b; }

/* 侧边栏遮罩（手机端） */
.sidebar-overlay {
  display: none; position: fixed; inset: 0;
  background: rgba(0,0,0,.4); z-index: 99;
}
.sidebar-overlay.show { display: block; }

/* ====== 主区域 ====== */
.main {
  flex: 1; margin-left: var(--sidebar-w);
  display: flex; flex-direction: column; min-height: 100vh;
}

/* 顶栏 */
.topbar {
  background: var(--c-surface);
  border-bottom: 1px solid var(--c-border);
  padding: 0 24px; height: 56px;
  display: flex; align-items: center; gap: 16px;
  position: sticky; top: 0; z-index: 50;
}
.topbar .hamburger {
  display: none; background: none; border: 0; cursor: pointer;
  width: 36px; height: 36px; border-radius: var(--radius-sm);
  align-items: center; justify-content: center;
}
.topbar .hamburger:hover { background: var(--c-bg); }
.topbar .hamburger svg { width: 22px; height: 22px; }
.topbar-title { font-size: 17px; font-weight: 600; flex: 1; }
.topbar-actions { display: flex; gap: 8px; align-items: center; }

/* 内容区 */
.content { padding: 24px; flex: 1; }

/* ====== 通用组件 ====== */

/* 卡片 */
.card {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  margin-bottom: 20px;
  overflow: hidden;
}
.card-header {
  padding: 16px 20px;
  border-bottom: 1px solid var(--c-border);
  display: flex; align-items: center; justify-content: space-between;
}
.card-title { font-size: 15px; font-weight: 600; }
.card-body { padding: 20px; }
.card-body.tight { padding: 0; }

/* 页面标题 */
.page-header { margin-bottom: 20px; }
.page-header h1 { font-size: 22px; font-weight: 700; }
.page-header .subtitle { font-size: 13px; color: var(--c-text-3); margin-top: 2px; }

/* 统计卡片网格 */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 16px; margin-bottom: 20px;
}
.stat-card {
  background: var(--c-surface); border: 1px solid var(--c-border);
  border-radius: var(--radius); padding: 18px 20px;
  display: flex; align-items: center; gap: 14px;
  box-shadow: var(--shadow);
}
.stat-icon {
  width: 44px; height: 44px; border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.stat-icon svg { width: 22px; height: 22px; }
.stat-icon.blue { background: var(--c-info-bg); color: var(--c-info); }
.stat-icon.amber { background: var(--c-warning-bg); color: var(--c-warning); }
.stat-icon.green { background: var(--c-success-bg); color: var(--c-success); }
.stat-icon.purple { background: var(--c-primary-light); color: var(--c-primary); }
.stat-icon.red { background: var(--c-danger-bg); color: var(--c-danger); }
.stat-value { font-size: 24px; font-weight: 700; line-height: 1.1; }
.stat-label { font-size: 12px; color: var(--c-text-3); margin-top: 2px; }

/* 按钮 */
.btn {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 8px 16px; border-radius: var(--radius-sm);
  border: 1px solid var(--c-border); background: var(--c-surface);
  font-size: 14px; font-family: inherit; cursor: pointer;
  color: var(--c-text); transition: all .15s;
  text-decoration: none; white-space: nowrap;
}
.btn:hover { border-color: var(--c-text-3); }
.btn svg { width: 16px; height: 16px; }
.btn-primary { background: var(--c-primary); color: #fff; border-color: var(--c-primary); }
.btn-primary:hover { background: var(--c-primary-dark); border-color: var(--c-primary-dark); color: #fff; }
.btn-danger { background: var(--c-danger); color: #fff; border-color: var(--c-danger); }
.btn-danger:hover { background: #dc2626; color: #fff; }
.btn-ghost { border-color: transparent; background: transparent; }
.btn-ghost:hover { background: var(--c-bg); }
.btn-sm { padding: 4px 10px; font-size: 12px; }
.btn-block { width: 100%; justify-content: center; }

/* 表单 */
.form-group { margin-bottom: 16px; }
.form-label { display: block; font-size: 13px; font-weight: 500; color: var(--c-text-2); margin-bottom: 6px; }
.form-input, .form-select, .form-textarea {
  width: 100%; padding: 9px 12px;
  border: 1px solid var(--c-border); border-radius: var(--radius-sm);
  font-size: 14px; font-family: inherit; background: var(--c-surface);
  color: var(--c-text); transition: border-color .15s, box-shadow .15s;
}
.form-input:focus, .form-select:focus, .form-textarea:focus {
  outline: none; border-color: var(--c-primary);
  box-shadow: 0 0 0 3px rgba(99,102,241,.12);
}
.form-textarea { min-height: 80px; resize: vertical; }
.form-hint { font-size: 12px; color: var(--c-text-3); margin-top: 4px; }
.form-row { display: flex; gap: 16px; flex-wrap: wrap; }
.form-row > .form-group { flex: 1; min-width: 180px; }

/* 复选框组 */
.check-group { display: flex; gap: 20px; flex-wrap: wrap; }
.check-item { display: inline-flex; align-items: center; gap: 6px; cursor: pointer; font-size: 14px; }
.check-item input { width: 16px; height: 16px; accent-color: var(--c-primary); cursor: pointer; }

/* 表格 */
.table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }
table.data-table {
  width: 100%; border-collapse: collapse; font-size: 13px;
}
.data-table th {
  text-align: left; padding: 10px 14px; font-weight: 600;
  color: var(--c-text-3); font-size: 12px; text-transform: uppercase;
  letter-spacing: .03em; border-bottom: 2px solid var(--c-border);
  white-space: nowrap; background: var(--c-bg);
}
.data-table td {
  padding: 12px 14px; border-bottom: 1px solid var(--c-border);
  vertical-align: top;
}
.data-table tbody tr:hover { background: #f8fafc; }
.data-table .cell-content { max-width: 320px; word-break: break-word; }
.data-table .cell-nowrap { white-space: nowrap; }

/* 徽章 */
.badge {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 2px 10px; border-radius: 999px;
  font-size: 12px; font-weight: 500; white-space: nowrap; flex-shrink: 0;
}
.badge-blue { background: var(--c-info-bg); color: #1e40af; }
.badge-amber { background: var(--c-warning-bg); color: #92400e; }
.badge-green { background: var(--c-success-bg); color: #065f46; }
.badge-red { background: var(--c-danger-bg); color: #991b1b; }
.badge-gray { background: #f1f5f9; color: #475569; }
.badge-purple { background: var(--c-primary-light); color: #3730a3; }

/* 提示框 */
.alert {
  padding: 12px 16px; border-radius: var(--radius-sm);
  margin-bottom: 16px; font-size: 13px;
  display: flex; align-items: flex-start; gap: 10px;
}
.alert-success { background: var(--c-success-bg); color: #065f46; border: 1px solid #a7f3d0; }
.alert-danger { background: var(--c-danger-bg); color: #991b1b; border: 1px solid #fecaca; }
.alert-info { background: var(--c-info-bg); color: #1e40af; border: 1px solid #bfdbfe; }
.alert .close-btn { margin-left: auto; cursor: pointer; background: none; border: 0; font-size: 18px; color: inherit; opacity: .6; }

/* 代码块（JSON 高亮） */
.code-block {
  background: #0f172a; border-radius: var(--radius-sm);
  padding: 16px 18px; overflow-x: auto;
  font-family: "SF Mono", "Cascadia Code", Consolas, monospace;
  font-size: 12.5px; line-height: 1.7; color: #e2e8f0;
  margin: 8px 0;
}
.code-block code { background: none; padding: 0; color: inherit; }
/* highlight.js theme override */
.hljs { background: transparent !important; padding: 0 !important; }
.hljs-keyword { color: #c084fc; }
.hljs-string { color: #86efac; }
.hljs-number { color: #fbbf24; }
.hljs-attr { color: #93c5fd; }
.hljs-punctuation { color: #94a3b8; }

/* 等宽小字 */
.mono { font-family: "SF Mono", Consolas, monospace; font-size: 12px; word-break: break-all; }
.nowrap { white-space: nowrap; }

/* 分页器 */
.pagination {
  display: flex; gap: 4px; align-items: center; justify-content: center;
  margin-top: 16px; flex-wrap: wrap;
}
.pager-btn {
  display: inline-flex; align-items: center; justify-content: center;
  min-width: 34px; height: 34px; padding: 0 10px;
  border-radius: var(--radius-sm); border: 1px solid var(--c-border);
  background: var(--c-surface); font-size: 13px; color: var(--c-text-2);
  text-decoration: none; transition: all .15s;
}
.pager-btn:hover { border-color: var(--c-primary); color: var(--c-primary); }
.pager-cur { background: var(--c-primary); color: #fff !important; border-color: var(--c-primary); font-weight: 600; }
.pager-info {
  width: 100%; text-align: center; margin-top: 8px;
  color: var(--c-text-3); font-size: 12px;
}

/* 空状态 */
.empty-state { text-align: center; padding: 40px 20px; color: var(--c-text-3); }
.empty-state svg { width: 48px; height: 48px; margin-bottom: 12px; opacity: .4; }

/* 工具栏（筛选/操作） */
.toolbar {
  display: flex; gap: 12px; flex-wrap: wrap; align-items: flex-end;
  margin-bottom: 16px;
}
.toolbar .form-group { margin-bottom: 0; }
.toolbar .btn-group { display: flex; gap: 8px; margin-left: auto; }

/* 内联表单（紧凑操作行） */
.inline-form { display: inline; }

/* 密钥一次性展示 */
.key-banner {
  background: linear-gradient(135deg, #fef2f2, #fff7ed);
  border: 2px dashed #fb923c; border-radius: var(--radius);
  padding: 16px 20px; margin-bottom: 20px;
}
.key-banner .key-value {
  font-family: "SF Mono", Consolas, monospace; font-size: 15px; font-weight: 600;
  word-break: break-all; background: #fff; padding: 10px 14px;
  border-radius: var(--radius-sm); margin: 8px 0; border: 1px solid #fed7aa;
}

/* JSON 弹窗 */
.modal-overlay {
  display: none; position: fixed; inset: 0;
  background: rgba(0,0,0,.5); z-index: 200;
  align-items: center; justify-content: center; padding: 20px;
}
.modal-overlay.show { display: flex; }
.modal-box {
  background: var(--c-surface); border-radius: var(--radius);
  width: 100%; max-width: 720px; max-height: 80vh;
  display: flex; flex-direction: column; box-shadow: var(--shadow-md);
}
.modal-header {
  padding: 14px 18px; border-bottom: 1px solid var(--c-border);
  display: flex; align-items: center; justify-content: space-between;
  flex-shrink: 0;
}
.modal-title { font-size: 14px; font-weight: 600; }
.modal-body { padding: 16px 18px; overflow-y: auto; flex: 1; }
.modal-close {
  background: none; border: 0; font-size: 22px; line-height: 1;
  cursor: pointer; color: var(--c-text-3); padding: 0 4px;
}
.modal-close:hover { color: var(--c-text); }

@media (max-width: 768px) {
  .modal-overlay { padding: 10px; }
  .modal-box { max-height: 85vh; border-radius: var(--radius); }
  .modal-body { padding: 12px 14px; }
}

/* 侧边栏底部（退出登录） */
.sidebar-footer { padding: 12px 10px; border-top: 1px solid rgba(255,255,255,.08); }
.sidebar-footer a {
  display: flex; align-items: center; gap: 12px;
  padding: 10px 14px; border-radius: var(--radius-sm);
  color: #94a3b8; font-size: 14px; transition: all .15s;
}
.sidebar-footer a:hover { background: rgba(255,255,255,.06); color: #e2e8f0; }
.sidebar-footer svg { width: 18px; height: 18px; flex-shrink: 0; }

/* 登录页 */
.login-page {
  min-height: 100vh; display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #6366f1 100%);
  padding: 20px;
}
.login-card {
  width: 100%; max-width: 400px; background: #fff;
  border-radius: 16px; padding: 36px 32px;
  box-shadow: 0 20px 60px rgba(0,0,0,.2);
}
.login-logo {
  width: 56px; height: 56px; border-radius: 14px; margin: 0 auto 16px;
  background: linear-gradient(135deg, var(--c-primary), var(--c-primary-dark));
  display: flex; align-items: center; justify-content: center;
}
.login-logo svg { width: 28px; height: 28px; color: #fff; }
.login-title { text-align: center; font-size: 20px; font-weight: 700; margin-bottom: 4px; }
.login-sub { text-align: center; font-size: 13px; color: var(--c-text-3); margin-bottom: 24px; }

/* 响应式 */
@media (max-width: 1024px) {
  .sidebar { transform: translateX(-100%); }
  .sidebar.open { transform: translateX(0); }
  .main { margin-left: 0; }
  .topbar .hamburger { display: flex; }
}

@media (max-width: 768px) {
  .content { padding: 12px; }
  .stat-grid { grid-template-columns: repeat(2, 1fr); gap: 10px; }
  .stat-card { padding: 14px; }
  .stat-value { font-size: 20px; }
  .stat-icon { width: 36px; height: 36px; }
  .stat-icon svg { width: 18px; height: 18px; }
  .card-header { padding: 12px 14px; }
  .card-body { padding: 14px; }
  .form-row { flex-direction: column; gap: 0; }
  .topbar { padding: 0 14px; height: 52px; }
  .topbar-title { font-size: 15px; }
  .btn { padding: 9px 14px; }
  .btn-sm { padding: 7px 12px; }

  /* 表格 → 卡片变形 */
  .table-wrap { overflow: visible; }
  .data-table thead { display: none; }
  .data-table, .data-table tbody { display: block; width: 100%; }
  .data-table tr {
    display: block; border: 1px solid var(--c-border);
    border-radius: var(--radius); margin-bottom: 12px;
    background: var(--c-surface); box-shadow: var(--shadow);
  }
  .data-table td {
    display: flex; align-items: flex-start;
    gap: 12px; padding: 9px 14px; border: 0;
    border-bottom: 1px solid #f1f5f9;
    font-size: 13px;
  }
  .data-table td:last-child { border-bottom: 0; }
  .data-table td::before {
    content: attr(data-label); font-weight: 600; font-size: 12px;
    color: var(--c-text-3); white-space: nowrap; flex-shrink: 0;
    width: 60px; text-align: left;
  }
  .data-table td[data-full] { flex-direction: column; text-align: left; }
  .data-table td[data-full]::before { margin-bottom: 6px; }
  .data-table td[colspan] { text-align: center; justify-content: center; }
  .data-table .cell-content { max-width: 60%; }

  /* 卡片容器背景加深，让行卡片有层次感 */
  .card-body.tight { background: var(--c-bg); padding: 12px; }

  /* 文档页键值表（th 在 tbody 中） */
  .kv-table, .kv-table tbody { display: block; width: 100%; }
  .kv-table tr {
    display: flex; align-items: flex-start; gap: 12px;
    margin-bottom: 0; border: 0; border-bottom: 1px solid var(--c-border);
    border-radius: 0; box-shadow: none; background: transparent;
  }
  .kv-table tr:last-child { border-bottom: 0; }
  .kv-table th {
    display: block; width: 90px; flex-shrink: 0;
    font-size: 12px; font-weight: 600; color: var(--c-text-3);
    text-transform: none; letter-spacing: 0; background: transparent;
    padding: 9px 0; border: 0; text-align: left;
  }
  .kv-table td {
    display: block; flex: 1; text-align: left;
    padding: 9px 0; border: 0; justify-content: flex-start;
  }
  .kv-table td::before { content: none; }

  /* 工具栏竖排 */
  .toolbar { flex-direction: column; align-items: stretch; }
  .toolbar .form-group { min-width: 0 !important; width: 100%; }
  .toolbar .btn-group { margin-left: 0; }

  /* 内联按钮组在卡片中换行 */
  .data-table td .flex { flex-wrap: wrap; gap: 6px; }

  /* 推送地址单元格可滚动 */
  .data-table td .mono { max-width: 100%; overflow-x: auto; }

  /* 代码块在手机上可换行（文档页示例 URL 等） */
  .code-block { font-size: 11.5px; padding: 12px 14px; }
  .code-block code { word-break: break-all; white-space: pre-wrap; }
}

@media (max-width: 480px) {
  .stat-grid { grid-template-columns: repeat(2, 1fr); }
  .login-card { padding: 28px 20px; }
  .card-body { padding: 12px; }
  .content { padding: 10px; }
}

/* 工具类 */
.text-muted { color: var(--c-text-3); }
.text-sm { font-size: 12px; }
.text-right { text-align: right; }
.mb-0 { margin-bottom: 0; }
.mb-2 { margin-bottom: 8px; }
.mt-2 { margin-top: 8px; }
.flex { display: flex; }
.gap-2 { gap: 8px; }
.items-center { align-items: center; }
.flex-wrap { flex-wrap: wrap; }
.hidden { display: none; }