* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans‑serif;
}

body {
    background-color: #f8fafc;
    color: #1e293b;
    padding: 24px 16px;
    line-height: 1.6;
}

.container {
    max-width: 1240px;
    margin: 0 auto;
}

/* 登录容器 */
.login-wrap {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg,#e0e7ff,#f8fafc);
}

.login-card {
    width: 100%;
    max-width: 440px;
    background: #ffffff;
    padding: 40px 32px;
    border-radius: 20px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.08);
}

.login-card h2 {
    text-align: center;
    font-size:24px;
    margin-bottom:28px;
    color:#1e293b;
}

/* 卡片组件 */
.card {
    background: #ffffff;
    border-radius: 16px;
    padding: 24px;
    box-shadow: 0 2px 14px rgba(15,23,42,0.06);
    margin-bottom:24px;
}

.card h3 {
    font-size:19px;
    margin-bottom:18px;
    color:#0f172a;
    display:flex;
    align-items:center;
    gap:8px;
}

/* 统计卡片行 */
.stats-row {
    display: grid;
    grid-template-columns: repeat(auto‑fit, minmax(200px,1fr));
    gap:18px;
    margin-bottom:24px;
}

.stat-item {
    background:#fff;
    border-radius:16px;
    padding:24px;
    box-shadow:0 2px 12px rgba(15,23,42,0.06);
}
.stat-num {
    font-size:34px;
    font-weight:700;
    color:#2563eb;
    line-height:1.1;
    margin-bottom:6px;
}
.stat-label {
    color:#64748b;
    font-size:14px;
}

/* 表单 */
input {
    width:100%;
    padding:12px 16px;
    border:1px solid #cbd5e1;
    border-radius:10px;
    font-size:15px;
    background:#fff;
    transition:0.2s;
}
input:focus {
    outline:none;
    border‑color:#2563eb;
    box‑shadow:0 0 0 3px rgba(37,99,235,0.12);
}

.form‑inline {
    display:flex;
    gap:12px;
    flex‑wrap:wrap;
    align‑items:center;
}

/* 按钮 */
.btn {
    padding:12px 20px;
    background‑color:#2563eb;
    color:#ffffff;
    border:none;
    border‑radius:10px;
    font‑size:15px;
    cursor:pointer;
    transition:0.2s;
}
.btn:hover {
    background‑color:#1d4ed8;
}
.btn‑danger {
    background‑color:#dc2626;
}
.btn‑danger:hover {
    background‑color:#b91c1c;
}
.btn‑block {
    width:100%;
}

/* 表格 */
.table‑wrap {
    overflow‑x:auto;
}
table {
    width:100%;
    border‑collapse:collapse;
}
th {
    background‑color:#f1f5f9;
    text‑align:left;
    padding:12px 14px;
    font‑size:14px;
    color:#334155;
}
td {
    padding:12px 14px;
    border‑bottom:1px solid #e2e8f0;
    font‑size:14px;
    color:#334155;
}
tr:hover td {
    background‑color:#f8fafc;
}

a {
    color:#2563eb;
    text‑decoration:none;
}
a:hover {
    text‑decoration:underline;
}

/* 提示框 */
.alert‑error {
    background‑color:#fef2f2;
    color:#dc2626;
    padding:12px 16px;
    border‑radius:10px;
    margin‑bottom:18px;
    font‑size:14px;
}

code {
    background‑color:#f1f5f9;
    padding:3px 8px;
    border‑radius:6px;
    font‑family:monospace;
}

.header‑title h1 {
    font‑size:26px;
    color:#0f172a;
    margin‑bottom:6px;
}
.header‑title p {
    color:#64748b;
    margin‑bottom:24px;
}