:root {
    --bg: #f4f6fb;
    --card: #ffffff;
    --line: #e6e9f0;
    --text: #1f2937;
    --muted: #8a93a3;
    --primary: #2f6df0;
    --ok: #1f9d55;
    --warn: #d98b00;
    --err: #d6453d;
    --low: #1f9d55;
    --mid: #d98b00;
    --high: #d6453d;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
    background: var(--bg);
    color: var(--text);
    font-size: 14px;
    line-height: 1.6;
}

a { color: var(--primary); text-decoration: none; }

.wrap { max-width: 1800px; margin: 0 auto; padding: 0 16px; }

.topbar {
    background: linear-gradient(120deg, #2f6df0, #5b8def);
    color: #fff;
    padding: 18px 0;
    box-shadow: 0 2px 8px rgba(0,0,0,.08);
}
.topbar .wrap { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 8px; }
.topbar h1 { font-size: 20px; margin: 0; }
.topbar .meta { display: flex; align-items: center; gap: 14px; font-size: 13px; flex-wrap: wrap; }
.topbar .meta strong { color: #fff; }
.topbar .btn-link {
    background: rgba(255,255,255,.18);
    padding: 6px 12px; border-radius: 6px; color: #fff; font-weight: 600;
}
.topbar .btn-link:hover { background: rgba(255,255,255,.3); }

main.wrap { padding-top: 22px; padding-bottom: 22px; }

.card {
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: 12px;
    padding: 18px;
    margin-bottom: 18px;
    box-shadow: 0 1px 4px rgba(0,0,0,.03);
}
.card h2 { margin: 0 0 12px; font-size: 16px; }

.grid { width: 100%; border-collapse: collapse; }
.grid th, .grid td { padding: 10px 12px; text-align: left; border-bottom: 1px solid var(--line); }
.grid th { font-size: 12px; color: var(--muted); font-weight: 600; background: #fafbfe; }
.grid th.sortable { cursor: pointer; user-select: none; position: relative; padding-right: 22px; }
.grid th.sortable:hover { color: var(--primary); }
.grid th.sortable::after { content: '⇅'; position: absolute; right: 6px; top: 50%; transform: translateY(-50%); font-size: 12px; opacity: .35; }
.grid th.sortable.asc::after { content: '↑'; opacity: 1; color: var(--primary); }
.grid th.sortable.desc::after { content: '↓'; opacity: 1; color: var(--primary); }
.grid tr:last-child td { border-bottom: none; }
.grid .name { font-weight: 600; }
.grid .code { color: var(--muted); font-family: ui-monospace, Menlo, monospace; }

/* 4档统一配色：所有维度共用，红=好(涨)，绿=差(跌)，符合A股直觉 */
.lvl4 { color: #dc2626; font-weight: 700; }   /* 高 - 红 */
.lvl3 { color: #2563eb; font-weight: 700; }   /* 中 - 蓝 */
.lvl2 { color: #16a34a; font-weight: 700; }   /* 低 - 绿 */
.lvl1 { color: #94a3b8; }                      /* 最差 - 灰 */

.score { font-weight: 700; font-family: ui-monospace, Menlo, monospace; font-size: 15px; }

.legend {
    display: flex; flex-wrap: wrap; align-items: center; gap: 14px;
    padding: 10px 14px; margin-bottom: 12px;
    background: #fafbfe; border: 1px solid var(--line);
    border-radius: 8px; font-size: 13px;
}
.legend-title { font-weight: 700; color: #475569; }
.legend-group { display: inline-flex; align-items: center; gap: 8px; }
.legend-group-label { color: var(--muted); font-size: 12px; }
.legend-item { display: inline-flex; align-items: center; gap: 5px; color: #475569; }
.legend-dot { display: inline-block; width: 12px; height: 12px; border-radius: 50%; }
.dot-lvl4 { background: #dc2626; }
.dot-lvl3 { background: #2563eb; }
.dot-lvl2 { background: #16a34a; }
.dot-lvl1 { background: #94a3b8; }

.note { color: var(--muted); }

.tag { display: inline-block; padding: 2px 8px; border-radius: 999px; font-size: 12px; }
.tag.ok { background: #e6f6ed; color: var(--ok); }
.tag.warn { background: #fdf3e0; color: var(--warn); }
.tag.err { background: #fbe7e6; color: var(--err); }
.tag.rec { background: var(--err); color: #fff; font-weight: 700; }
.tag.rec-blue { background: #2f6df0; color: #fff; font-weight: 700; }

.log ul { list-style: none; margin: 0; padding: 0; max-height: 280px; overflow: auto; }
.log li { display: flex; gap: 10px; padding: 4px 0; border-bottom: 1px dashed var(--line); font-size: 13px; }
.log .t { color: var(--muted); font-family: ui-monospace, Menlo, monospace; flex: 0 0 150px; }
.log .lv { flex: 0 0 48px; font-weight: 600; }
.lv-info { color: var(--primary); }
.lv-error { color: var(--err); }
.lv-warn { color: var(--warn); }
.log .m { flex: 1; }

.muted { color: var(--muted); font-size: 13px; }

footer.wrap { padding-bottom: 30px; }

/* 表单 / 后台 */
.admin-wrap { max-width: 860px; margin: 40px auto; padding: 0 16px; }
.login-card {
    max-width: 360px; margin: 80px auto; background: var(--card);
    border: 1px solid var(--line); border-radius: 12px; padding: 28px;
    box-shadow: 0 4px 18px rgba(0,0,0,.06);
}
.login-card h1 { text-align: center; font-size: 20px; margin: 0 0 20px; }
.field { margin-bottom: 14px; }
.field label { display: block; font-size: 13px; margin-bottom: 6px; color: var(--muted); }
.field input, .field select, .field textarea {
    width: 100%; padding: 9px 11px; border: 1px solid var(--line);
    border-radius: 8px; font-size: 14px; font-family: inherit;
}
.field textarea { min-height: 70px; resize: vertical; }
.btn {
    display: inline-block; padding: 9px 16px; border: none; border-radius: 8px;
    background: var(--primary); color: #fff; font-size: 14px; font-weight: 600; cursor: pointer;
}
.btn:hover { background: #245ad6; }
.btn.ghost { background: #eef1f8; color: var(--text); }
.btn.danger { background: var(--err); }
.btn.sm { padding: 5px 10px; font-size: 13px; }

.tabs { display: flex; gap: 6px; border-bottom: 1px solid var(--line); margin-bottom: 18px; flex-wrap: wrap; }
.tabs a { padding: 9px 14px; border-radius: 8px 8px 0 0; color: var(--muted); }
.tabs a.active { background: #eef3fe; color: var(--primary); font-weight: 600; }

.alert { padding: 10px 14px; border-radius: 8px; margin-bottom: 14px; font-size: 13px; }
.alert.ok { background: #e6f6ed; color: var(--ok); }
.alert.err { background: #fbe7e6; color: var(--err); }

.bar { display: flex; gap: 10px; align-items: center; margin-bottom: 14px; flex-wrap: wrap; }
.bar .spacer { flex: 1; }

/* ========== 移动端适配 ========== */
@media (max-width: 768px) {
    body { font-size: 13px; }
    .wrap { padding: 0 10px; }

    /* 顶栏垂直排列 */
    .topbar { padding: 12px 0; }
    .topbar .wrap { flex-direction: column; align-items: flex-start; gap: 6px; }
    .topbar h1 { font-size: 17px; }
    .topbar .meta { gap: 8px; font-size: 12px; flex-wrap: wrap; }
    .topbar .btn-link { padding: 4px 8px; font-size: 12px; }

    /* 卡片 */
    main.wrap { padding-top: 12px; padding-bottom: 12px; }
    .card { padding: 12px; margin-bottom: 12px; border-radius: 10px; }
    .card h2 { font-size: 15px; }

    /* 表格横向滚动 */
    .card > table.grid,
    .card > .table-scroll { overflow-x: auto; -webkit-overflow-scrolling: touch; }
    .grid { min-width: 700px; }
    .grid th, .grid td { padding: 8px 8px; font-size: 12px; white-space: nowrap; }
    .grid .name { max-width: 80px; overflow: hidden; text-overflow: ellipsis; }

    /* 日志 */
    .log li { flex-wrap: wrap; gap: 4px; }
    .log .t { flex: 0 0 auto; font-size: 11px; }
    .log .lv { flex: 0 0 auto; font-size: 11px; }
    .log .m { flex: 1 1 100%; font-size: 12px; }

    /* 登录卡片 */
    .login-card { margin: 40px auto; padding: 20px; }
    .login-card h1 { font-size: 17px; }

    /* 后台 */
    .admin-wrap { margin: 16px auto; padding: 0 10px; }
    .tabs a { padding: 7px 10px; font-size: 13px; }
    .bar { gap: 6px; }
    .bar .field { min-width: 0; }
    .btn { padding: 8px 12px; font-size: 13px; }

    /* 页脚 */
    footer.wrap { padding-bottom: 20px; }
    footer.wrap p { font-size: 12px; }
}

@media (max-width: 480px) {
    .topbar .meta { gap: 6px; }
    .topbar .btn-link { padding: 3px 6px; font-size: 11px; }
    .grid { min-width: 600px; }
    .grid th, .grid td { padding: 6px 6px; font-size: 11px; }
    .tag { font-size: 11px; padding: 1px 6px; }
    .hide-mobile { display: none; }
    .show-mobile { display: table-cell; }
}

@media (min-width: 481px) {
    .show-mobile { display: none; }
}