/* =====================================================
 * 贴吧排行榜 全站样式（V1.0）
 * 由 includes/header.php 内联样式分离而来
 * ===================================================== */
:root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --navy: #0f172a;
    --bg: #f1f5f9;
    --card: #ffffff;
    --text: #1e293b;
    --muted: #64748b;
    --border: #e2e8f0;
    --gold: #f59e0b;
    --silver: #94a3b8;
    --bronze: #cd7f32;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
}
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }

/* 顶部导航 */
.topbar {
    background: var(--navy);
    color: #fff;
    padding: 14px 0;
    box-shadow: 0 2px 8px rgba(15, 23, 42, .25);
}
.topbar .inner {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 10px;
}
.topbar .logo {
    font-size: 20px;
    font-weight: 700;
    color: #fff;
    display: flex;
    align-items: center;
    gap: 8px;
}
.topbar .logo .dot { color: var(--gold); }
.topbar nav { display: flex; gap: 6px; flex-wrap: wrap; }
.topbar nav a {
    color: #cbd5e1;
    padding: 6px 14px;
    border-radius: 6px;
    font-size: 14px;
}
.topbar nav a:hover { color: #fff; background: rgba(255,255,255,.12); text-decoration: none; }
.topbar nav a.active { color: #fff; background: var(--primary); }

/* 主体容器 */
.container { max-width: 1100px; margin: 0 auto; padding: 24px 16px 60px; }

/* 统计卡片 */
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 14px; margin-bottom: 22px; }
.stat-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 18px 20px;
    box-shadow: 0 1px 3px rgba(15,23,42,.06);
}
.stat-card .label { font-size: 13px; color: var(--muted); }
.stat-card .value { font-size: 26px; font-weight: 700; color: var(--navy); margin-top: 2px; }
.stat-card .value small { font-size: 13px; color: var(--muted); font-weight: 400; }

/* 卡片面板 */
.panel {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 12px;
    box-shadow: 0 1px 3px rgba(15,23,42,.06);
    padding: 20px;
    margin-bottom: 22px;
}
.panel h2 { font-size: 17px; margin-bottom: 14px; }
.panel h1.panel-title { font-size: 17px; margin-bottom: 14px; }

/* 工具栏 */
.toolbar { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; margin-bottom: 16px; }
.toolbar form { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.input, .select {
    padding: 8px 12px;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 14px;
    background: #fff;
    color: var(--text);
    outline: none;
}
.input:focus, .select:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(37,99,235,.12); }
.btn {
    display: inline-block;
    padding: 8px 16px;
    border: 1px solid transparent;
    border-radius: 8px;
    background: var(--primary);
    color: #fff;
    font-size: 14px;
    cursor: pointer;
    text-decoration: none;
}
.btn:hover { background: var(--primary-dark); text-decoration: none; }
.btn-outline { background: #fff; color: var(--primary); border-color: var(--primary); }
.btn-outline:hover { background: #eff6ff; }
.btn-danger { background: #dc2626; }
.btn-danger:hover { background: #b91c1c; }
.btn-sm { padding: 4px 10px; font-size: 13px; }
.link-btn { background: none; border: none; color: var(--primary); cursor: pointer; font-size: 14px; padding: 0; }
.link-btn:hover { text-decoration: underline; }
.link-btn.danger { color: #dc2626; }

/* 排行榜表格 */
.table-wrap { overflow-x: auto; }
table.rank { width: 100%; border-collapse: collapse; font-size: 14px; }
table.rank th {
    background: #f8fafc;
    color: var(--muted);
    font-weight: 600;
    text-align: left;
    padding: 10px 12px;
    border-bottom: 2px solid var(--border);
    white-space: nowrap;
}
table.rank td {
    padding: 12px;
    border-bottom: 1px solid var(--border);
    vertical-align: middle;
}
table.rank tr:hover td { background: #f8fafc; }
.rank-no {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 30px;
    height: 30px;
    border-radius: 8px;
    background: #e2e8f0;
    color: var(--muted);
    font-weight: 700;
    font-size: 13px;
}
.rank-no.r1 { background: #fef3c7; color: #b45309; }
.rank-no.r2 { background: #f1f5f9; color: #475569; }
.rank-no.r3 { background: #ffedd5; color: #c2410c; }
.ba-name { font-weight: 600; color: var(--text); }
.ba-name:hover { color: var(--primary); }
.num { font-variant-numeric: tabular-nums; font-weight: 600; }
.badge {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 20px;
    font-size: 12px;
    background: #eff6ff;
    color: var(--primary-dark);
    white-space: nowrap;
}
.badge.sub { background: #f1f5f9; color: var(--muted); }
.badge.ok { background: #f0fdf4; color: #15803d; }
.badge.warn { background: #fffbeb; color: #b45309; }
.badge.bad { background: #fef2f2; color: #b91c1c; }

/* 分类卡片 */
.cat-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 12px; }
.cat-card {
    background: #f8fafc;
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 14px 16px;
    text-align: center;
    transition: all .15s;
}
.cat-card:hover { border-color: var(--primary); box-shadow: 0 2px 8px rgba(37,99,235,.12); text-decoration: none; }
.cat-card .name { font-weight: 600; color: var(--text); }
.cat-card .count { font-size: 12px; color: var(--muted); margin-top: 4px; }
.cat-card.active { border-color: var(--primary); background: #eff6ff; }
.cat-card.active .name { color: var(--primary); }

/* 分页 */
.pagination { display: flex; gap: 6px; justify-content: center; margin-top: 22px; flex-wrap: wrap; }
.pagination a, .pagination span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 36px;
    height: 36px;
    padding: 0 10px;
    border-radius: 8px;
    border: 1px solid var(--border);
    background: #fff;
    font-size: 14px;
    color: var(--text);
}
.pagination a:hover { border-color: var(--primary); color: var(--primary); text-decoration: none; }
.pagination .current { background: var(--primary); border-color: var(--primary); color: #fff; }
.pagination .disabled { color: #cbd5e1; pointer-events: none; }

/* 详情页 */
.detail-header { display: flex; gap: 16px; align-items: flex-start; flex-wrap: wrap; }
.detail-header h1 { font-size: 24px; margin-bottom: 8px; }
.detail-meta { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 12px; margin: 18px 0; }
.detail-meta .item {
    background: #f8fafc;
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 14px 16px;
}
.detail-meta .item .k { font-size: 12px; color: var(--muted); }
.detail-meta .item .v { font-size: 20px; font-weight: 700; margin-top: 2px; }

/* 表单 */
.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-size: 14px; font-weight: 600; margin-bottom: 6px; }
.form-group .input, .form-group .select { width: 100%; }
.form-hint { font-size: 12px; color: var(--muted); margin-top: 4px; }
.alert {
    padding: 12px 16px;
    border-radius: 8px;
    margin-bottom: 16px;
    font-size: 14px;
}
.alert-error { background: #fef2f2; color: #b91c1c; border: 1px solid #fecaca; }
.alert-success { background: #f0fdf4; color: #15803d; border: 1px solid #bbf7d0; }

/* 提示 */
.empty { text-align: center; color: var(--muted); padding: 40px 0; }

/* 页脚 */
.footer {
    text-align: center;
    color: var(--muted);
    font-size: 13px;
    padding: 20px 16px;
    border-top: 1px solid var(--border);
    margin-top: 20px;
}

/* 登录 */
.login-box { max-width: 380px; margin: 60px auto; }

/* ===== V1.6 后台左侧导航布局 ===== */
.admin-wrap { display: flex; min-height: calc(100vh - 96px); align-items: stretch; }
.admin-sidebar {
    width: 210px; flex: 0 0 210px;
    background: #fff;
    border-right: 1px solid var(--border);
    padding: 18px 12px;
    box-sizing: border-box;
}
.admin-sidebar nav { display: flex; flex-direction: column; gap: 2px; }
.admin-sidebar .side-toggle { cursor: pointer; user-select: none; }
.admin-sidebar .side-toggle::before { content: '▾ '; }
.admin-sidebar .side-toggle:not(.open)::before { content: '▸ '; }
.admin-sidebar .side-items.collapsed { display: none; }
.admin-sidebar .side-title {
    font-size: 12px; font-weight: 700; color: #94a3b8;
    letter-spacing: .12em; margin: 14px 6px 6px; text-transform: uppercase;
}
.admin-sidebar nav a {
    display: block; padding: 8px 12px; font-size: 14px;
    color: var(--text); border-radius: 8px; text-decoration: none;
    transition: background .15s, color .15s;
}
.admin-sidebar nav a:hover { background: rgba(59,130,246,.08); color: var(--primary); text-decoration: none; }
.admin-sidebar nav a.active { background: var(--primary); color: #fff; }
.admin-main { flex: 1 1 auto; min-width: 0; padding: 22px; box-sizing: border-box; }
.admin-main .container { padding: 0; max-width: 1400px; }
@media (max-width: 860px) {
    .admin-wrap { flex-direction: column; }
    .admin-sidebar { width: 100%; flex: auto; border-right: none; border-bottom: 1px solid var(--border); }
    .admin-sidebar nav { flex-direction: row; flex-wrap: wrap; }
    .admin-main { padding: 14px; }
}