* { box-sizing: border-box; }
body {
    font-family: -apple-system, "Segoe UI", "Microsoft YaHei", sans-serif;
    margin: 0;
    background: #f4f5f7;
    color: #222;
}

.login-body {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100vh;
}
.login-box {
    background: #fff;
    padding: 32px 40px;
    border-radius: 8px;
    box-shadow: 0 2px 12px rgba(0,0,0,0.08);
    width: 320px;
}
.login-box h1 { font-size: 18px; margin-bottom: 16px; }
.login-box label { display: block; margin-bottom: 12px; font-size: 13px; color: #555; }
.login-box input { width: 100%; padding: 8px; margin-top: 4px; border: 1px solid #ccc; border-radius: 4px; }
.login-box button { width: 100%; padding: 10px; background: #2f6feb; color: #fff; border: none; border-radius: 4px; cursor: pointer; }
.login-box .error { color: #d33; font-size: 13px; }

.topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: #1f2430;
    color: #fff;
    padding: 12px 24px;
}
.topbar h1 { font-size: 16px; margin: 0; }
.topbar nav a { color: #cfd3dc; text-decoration: none; margin-right: 16px; }
.topbar nav a.active, .topbar nav a:hover { color: #fff; }
.topbar .user-info { color: #9aa1af; font-size: 13px; }
.topbar .user-info a { color: #cfd3dc; }

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

.site-tabs, .dim-tabs { margin-bottom: 12px; }
.site-tab, .dim-tab {
    padding: 6px 16px;
    margin-right: 8px;
    border: 1px solid #d6d9e0;
    background: #fff;
    border-radius: 4px;
    cursor: pointer;
}
.site-tab.active, .dim-tab.active { background: #2f6feb; color: #fff; border-color: #2f6feb; }

.panel {
    background: #fff;
    border-radius: 6px;
    padding: 16px;
    margin-bottom: 20px;
    box-shadow: 0 1px 4px rgba(0,0,0,0.06);
}

.toolbar { display: flex; align-items: center; gap: 12px; margin-bottom: 12px; flex-wrap: wrap; }
.toolbar label { font-size: 13px; color: #555; }
.toolbar button { padding: 6px 14px; cursor: pointer; }

.chart { width: 100%; height: 320px; }

.data-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.data-table th, .data-table td { border-bottom: 1px solid #eee; padding: 8px; text-align: left; }
.data-table th { background: #fafafa; }
.data-table td { max-width: 220px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.filter-form { display: flex; flex-wrap: wrap; gap: 12px; align-items: end; }
.filter-form label { font-size: 13px; color: #555; display: flex; flex-direction: column; gap: 4px; }
.filter-form input { padding: 6px; border: 1px solid #ccc; border-radius: 4px; }
.filter-form button { padding: 8px 20px; background: #2f6feb; color: #fff; border: none; border-radius: 4px; cursor: pointer; height: 34px; }

.pagination { display: flex; align-items: center; gap: 12px; margin-top: 12px; }
.pagination button { padding: 4px 12px; cursor: pointer; }