/* ===== 基础重置 ===== */
* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: -apple-system, "Microsoft YaHei", "PingFang SC", sans-serif; background: #f0f2f5; color: #333; line-height: 1.6; }

/* ===== 容器 ===== */
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }

/* ===== 导航栏 ===== */
.navbar { background: #2B579A; color: #fff; padding: 14px 0; box-shadow: 0 2px 8px rgba(0,0,0,0.15); }
.navbar .container { display: flex; justify-content: space-between; align-items: center; }
.logo { color: #fff; text-decoration: none; font-size: 18px; font-weight: bold; }
.nav-links { display: flex; gap: 20px; align-items: center; }
.nav-links a { color: rgba(255,255,255,0.85); text-decoration: none; font-size: 14px; }
.nav-links a:hover { color: #fff; }

/* ===== 主内容 ===== */
main { padding: 30px 0; min-height: calc(100vh - 56px); }

/* ===== 卡片 ===== */
.card { background: #fff; border-radius: 8px; padding: 24px; box-shadow: 0 1px 3px rgba(0,0,0,0.1); margin-bottom: 20px; }
.card h2 { font-size: 18px; margin-bottom: 16px; color: #2B579A; }

/* ===== 认证页面 ===== */
.auth-page { display: flex; justify-content: center; align-items: center; min-height: calc(100vh - 56px); }
.auth-card { background: #fff; border-radius: 12px; padding: 40px; width: 400px; box-shadow: 0 4px 20px rgba(0,0,0,0.1); }
.auth-card h1 { text-align: center; color: #2B579A; margin-bottom: 8px; font-size: 24px; }
.auth-card .subtitle { text-align: center; color: #999; margin-bottom: 30px; font-size: 14px; }

/* ===== 表单 ===== */
.form-group { margin-bottom: 20px; }
.form-group label { display: block; margin-bottom: 6px; font-size: 14px; color: #555; font-weight: 500; }
.form-group input, .form-group select, .form-group textarea {
    width: 100%; padding: 10px 12px; border: 1px solid #d9d9d9; border-radius: 6px;
    font-size: 14px; transition: border-color 0.3s;
}
.form-group input:focus, .form-group select:focus { border-color: #2B579A; outline: none; }
.form-row { display: flex; gap: 10px; }
.form-row input { flex: 1; }
.form-row .btn { white-space: nowrap; }

/* ===== 按钮 ===== */
.btn { display: inline-block; padding: 10px 20px; border: none; border-radius: 6px; font-size: 14px; cursor: pointer; text-decoration: none; text-align: center; transition: opacity 0.2s; }
.btn:hover { opacity: 0.85; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn-primary { background: #2B579A; color: #fff; }
.btn-success { background: #52c41a; color: #fff; }
.btn-danger { background: #ff4d4f; color: #fff; }
.btn-block { display: block; width: 100%; }
.btn-sm { padding: 6px 14px; font-size: 13px; }

/* ===== 标签选择 ===== */
.tag-group { display: flex; flex-wrap: wrap; gap: 8px; }
.tag-item { padding: 6px 16px; border: 1px solid #d9d9d9; border-radius: 20px; font-size: 13px; cursor: pointer; transition: all 0.2s; user-select: none; }
.tag-item.selected { background: #2B579A; color: #fff; border-color: #2B579A; }
.tag-item:hover { border-color: #2B579A; }

/* ===== 表格 ===== */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { text-align: left; padding: 12px; border-bottom: 1px solid #f0f0f0; }
th { background: #fafafa; font-weight: 600; color: #555; }
tr:hover { background: #fafafa; }

/* ===== 状态标签 ===== */
.status { display: inline-block; padding: 2px 10px; border-radius: 10px; font-size: 12px; }
.status-pending { background: #fff7e6; color: #d48806; }
.status-active { background: #f6ffed; color: #52c41a; }
.status-suspended { background: #fff1f0; color: #ff4d4f; }

/* ===== 提示信息 ===== */
.alert { padding: 12px 16px; border-radius: 6px; margin-bottom: 16px; font-size: 14px; }
.alert-success { background: #f6ffed; border: 1px solid #b7eb8f; color: #52c41a; }
.alert-error { background: #fff2f0; border: 1px solid #ffccc7; color: #ff4d4f; }
.alert-info { background: #e6f7ff; border: 1px solid #91d5ff; color: #1890ff; }

/* ===== 仪表盘网格 ===== */
.stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 16px; margin-bottom: 24px; }
.stat-card { background: #fff; border-radius: 8px; padding: 20px; text-align: center; box-shadow: 0 1px 3px rgba(0,0,0,0.1); }
.stat-card .number { font-size: 32px; font-weight: bold; color: #2B579A; }
.stat-card .label { font-size: 14px; color: #999; margin-top: 4px; }

/* ===== 空状态 ===== */
.empty { text-align: center; padding: 40px; color: #999; }