/* ========== 设计系统 ==========
 * 主色 #1677ff  文字 #1f1f1f/#595959/#8c8c8c  边框 #e5e7eb  背景 #f0f2f5
 * 圆角 2px  字号 14/12/20px  间距单位 8px
 * ============================== */

* { margin: 0; padding: 0; box-sizing: border-box; }
html { font-size: 14px; }
body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
                 "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;
    background: #f0f2f5;
    color: rgba(0, 0, 0, 0.88);
    line-height: 1.5715;
    -webkit-font-smoothing: antialiased;
    font-size: 14px;
}
a { color: #1677ff; text-decoration: none; }
a:hover { color: #4096ff; }

/* ========== 顶部导航 ========== */
.topbar {
    background: #001529;
    color: #fff;
    height: 48px;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.topbar .brand {
    font-size: 16px;
    font-weight: 600;
    color: #fff;
    letter-spacing: .5px;
    display: flex;
    align-items: center;
    gap: 8px;
}
.topbar .brand::before {
    content: '';
    display: inline-block;
    width: 22px;
    height: 22px;
    background: #1677ff;
    border-radius: 3px;
}
.topbar nav {
    display: flex;
    align-items: center;
    gap: 4px;
}
.topbar nav a {
    color: rgba(255, 255, 255, 0.75);
    text-decoration: none;
    font-size: 14px;
    padding: 0 16px;
    height: 48px;
    line-height: 48px;
    transition: color .15s, background .15s;
}
.topbar nav a:hover {
    color: #fff;
    background: rgba(255, 255, 255, 0.08);
}
.topbar .nav-work {
    color: #fff !important;
    background: #1677ff;
}
.topbar .nav-work:hover {
    background: #4096ff;
}
.topbar .who {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.55);
    padding: 0 12px;
}

/* ========== 容器 ========== */
.container {
    max-width: 1280px;
    margin: 24px auto;
    padding: 0 24px;
}

/* ========== 标题 ========== */
.page-title {
    font-size: 20px;
    font-weight: 600;
    color: rgba(0, 0, 0, 0.88);
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.page-title small {
    font-size: 14px;
    font-weight: normal;
    color: rgba(0, 0, 0, 0.45);
    margin-left: 8px;
}
.section-title {
    font-size: 16px;
    font-weight: 600;
    color: rgba(0, 0, 0, 0.88);
    margin-bottom: 16px;
}

/* ========== 卡片 ========== */
.card {
    background: #fff;
    border-radius: 2px;
    padding: 20px 24px;
    margin-bottom: 16px;
    border: 1px solid #f0f0f0;
}

/* ========== 按钮 ========== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
    background: #fff;
    color: rgba(0, 0, 0, 0.88);
    border: 1px solid #d9d9d9;
    padding: 6px 15px;
    border-radius: 2px;
    cursor: pointer;
    font-size: 14px;
    font-family: inherit;
    line-height: 1.5715;
    transition: all .15s;
    text-decoration: none;
    white-space: nowrap;
    user-select: none;
}
.btn:hover {
    color: #4096ff;
    border-color: #4096ff;
}
.btn:active {
    color: #0958d9;
    border-color: #0958d9;
}
.btn-primary {
    background: #1677ff;
    color: #fff;
    border-color: #1677ff;
}
.btn-primary:hover {
    background: #4096ff;
    color: #fff;
    border-color: #4096ff;
}
.btn-primary:active {
    background: #0958d9;
    border-color: #0958d9;
}
.btn-default { /* 同 btn，占位 */ }
.btn-danger {
    background: #fff;
    color: #ff4d4f;
    border-color: #ff4d4f;
}
.btn-danger:hover {
    color: #ff7875;
    border-color: #ff7875;
}
.btn-success {
    background: #52c41a;
    color: #fff;
    border-color: #52c41a;
}
.btn-sm { padding: 4px 11px; font-size: 13px; }
.btn-block { width: 100%; padding: 10px 15px; }

/* ========== 表单 ========== */
input[type=text],
input[type=password],
input[type=file],
select,
textarea {
    padding: 6px 11px;
    border: 1px solid #d9d9d9;
    border-radius: 2px;
    font-size: 14px;
    font-family: inherit;
    color: rgba(0, 0, 0, 0.88);
    background: #fff;
    transition: border-color .15s, box-shadow .15s;
}
input:focus, select:focus, textarea:focus {
    outline: none;
    border-color: #1677ff;
    box-shadow: 0 0 0 2px rgba(22, 119, 255, 0.06);
}
input[type=file] { margin: 8px 0; display: block; }

.search-bar {
    display: flex;
    gap: 8px;
    margin-bottom: 16px;
    align-items: center;
}
.search-bar input { flex: 1; max-width: 360px; }
.inline-form { display: flex; gap: 8px; }

/* ========== 表格 ========== */
.table-wrap { overflow-x: auto; }
table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
}
thead th {
    background: #fafafa;
    color: rgba(0, 0, 0, 0.88);
    font-weight: 600;
    font-size: 14px;
    padding: 12px 16px;
    border-bottom: 1px solid #f0f0f0;
    text-align: left;
}
tbody td {
    padding: 12px 16px;
    border-bottom: 1px solid #f0f0f0;
    color: rgba(0, 0, 0, 0.88);
    font-size: 14px;
}
tbody tr:hover td {
    background: #fafafa;
}
tbody tr:last-child td {
    border-bottom: none;
}
.table-empty {
    text-align: center;
    color: rgba(0, 0, 0, 0.45);
    padding: 48px 0;
    font-size: 14px;
}

/* ========== Tag ========== */
.tag {
    display: inline-block;
    padding: 0 7px;
    height: 22px;
    line-height: 20px;
    border-radius: 2px;
    font-size: 12px;
    border: 1px solid transparent;
}
.tag-default {
    background: #fafafa;
    color: rgba(0, 0, 0, 0.65);
    border-color: #d9d9d9;
}
.tag-untagged {
    color: rgba(0, 0, 0, 0.25);
    font-size: 13px;
}
.tag-info { background: #f5f5f5; color: rgba(0, 0, 0, 0.65); border-color: #d9d9d9; }
.tag-danger { background: #fff1f0; color: #ff4d4f; border-color: #ffa39e; }
.tag-success { background: #f6ffed; color: #52c41a; border-color: #b7eb8f; }
.tag-warning { background: #fffbe6; color: #faad14; border-color: #ffe58f; }

/* ========== 统计栏 ========== */
.stats-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 20px 32px;
    font-size: 14px;
}
.stats-bar .stat-item {
    display: inline-flex;
    align-items: baseline;
    gap: 6px;
}
.stats-bar .stat-label { color: rgba(0, 0, 0, 0.45); }
.stats-bar .stat-num {
    font-weight: 600;
    font-size: 16px;
    color: rgba(0, 0, 0, 0.88);
    font-variant-numeric: tabular-nums;
}
.stats-bar .stat-num.highlight { color: #1677ff; }
.stats-bar .stat-num.warn { color: #ff4d4f; }
.stats-bar .stat-divider {
    flex-basis: 100%;
    height: 1px;
    background: #f0f0f0;
    margin: 4px 0;
}

/* ========== 消息 ========== */
.alert {
    background: #fff2f0;
    color: #ff4d4f;
    border: 1px solid #ffccc7;
    padding: 8px 15px;
    border-radius: 2px;
    margin-bottom: 16px;
    font-size: 14px;
}
.success {
    background: #f6ffed;
    color: #52c41a;
    border: 1px solid #b7eb8f;
    padding: 8px 15px;
    border-radius: 2px;
    margin-bottom: 16px;
    font-size: 14px;
}

/* ========== 分页 ========== */
.pagination {
    margin-top: 16px;
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    align-items: center;
}
.pagination a, .pagination .cur {
    min-width: 32px;
    height: 32px;
    line-height: 30px;
    border: 1px solid #d9d9d9;
    border-radius: 2px;
    text-decoration: none;
    color: rgba(0, 0, 0, 0.88);
    font-size: 14px;
    background: #fff;
    text-align: center;
    padding: 0 8px;
    transition: all .15s;
}
.pagination a:hover { color: #1677ff; border-color: #1677ff; }
.pagination .cur {
    background: #1677ff;
    color: #fff;
    border-color: #1677ff;
    cursor: default;
}

/* ========== 登录页 ========== */
.login-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: #f0f2f5;
}
.login-box {
    background: #fff;
    width: 400px;
    padding: 40px 36px;
    border-radius: 2px;
    border: 1px solid #f0f0f0;
}
.login-box h1 {
    text-align: center;
    font-size: 20px;
    font-weight: 600;
    color: rgba(0, 0, 0, 0.88);
    margin-bottom: 28px;
}
.login-box label {
    display: block;
    font-size: 14px;
    color: rgba(0, 0, 0, 0.88);
    margin: 16px 0 8px;
}
.login-box input { width: 100%; }
.login-box .btn { width: 100%; height: 40px; margin-top: 24px; }

/* ========== 危险区域 ========== */
.danger-zone { border-color: #ffccc7; }
.danger-zone h2 { color: #ff4d4f; }
.danger-zone p {
    color: rgba(0, 0, 0, 0.65);
    margin: 8px 0 16px;
    font-size: 14px;
}
.danger-zone code {
    background: #fff1f0;
    color: #ff4d4f;
    padding: 1px 6px;
    border-radius: 2px;
    font-size: 13px;
    border: 1px solid #ffa39e;
}