:root {
  --bg: #f4f6f9;
  --card: #ffffff;
  --line: #e2e6ee;
  --text: #1e2530;
  --muted: #6b7686;
  --brand: #1f5fa8;
  --brand-dark: #174a85;
  --danger: #cf2e2e;
  --danger-soft: #fdecec;
  --urgent: #d9620b;
  --urgent-soft: #fdf0e4;
  --warning: #a8801a;
  --warning-soft: #fdf7e3;
  --notice: #2f6fb5;
  --notice-soft: #eaf2fb;
  --ok: #2f8f5b;
  --ok-soft: #eaf6ef;
}

* { box-sizing: border-box; }

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

a { color: var(--brand); text-decoration: none; }
a:hover { text-decoration: underline; }

.wrap { max-width: 1180px; margin: 0 auto; padding: 0 20px; }

/* 顶栏 */
.topbar { background: #1b2532; color: #eef2f7; }
.topbar-inner { display: flex; align-items: center; justify-content: space-between; height: 58px; }
.brand { display: flex; align-items: center; gap: 10px; }
.logo {
  display: inline-flex; align-items: center; justify-content: center;
  width: 30px; height: 30px; border-radius: 7px;
  background: var(--brand); color: #fff; font-weight: 700; font-size: 15px;
}
.brand-text { display: flex; flex-direction: column; line-height: 1.25; }
.brand-name { font-weight: 600; font-size: 15px; }
.brand-sub { font-size: 11px; color: #93a1b5; }
.nav { display: flex; align-items: center; gap: 16px; font-size: 13px; }
.nav a { color: #d7dfea; }
.nav a:hover { color: #fff; }
.nav .who { color: #8fa3bd; }
.nav .muted { color: #8fa3bd; }

.main { padding: 22px 20px 40px; }
.foot { color: var(--muted); font-size: 12px; padding-bottom: 28px; }

/* 卡片 */
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 20px 22px;
}

/* 统计 */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin-bottom: 16px; }
.stat {
  background: var(--card); border: 1px solid var(--line); border-radius: 10px;
  padding: 12px 16px; display: flex; flex-direction: column;
}
.stat-num { font-size: 24px; font-weight: 700; line-height: 1.2; }
.stat-label { font-size: 12px; color: var(--muted); }
.stat-expired .stat-num { color: var(--danger); }
.stat-urgent .stat-num { color: var(--urgent); }
.stat-warning .stat-num { color: var(--warning); }

/* 提醒框 */
.alert-box {
  background: var(--danger-soft); border: 1px solid #f3c9c9;
  border-radius: 10px; padding: 14px 18px; margin-bottom: 16px;
}
.alert-head { font-weight: 600; color: var(--danger); margin-bottom: 8px; }
.alert-list { list-style: none; margin: 0; padding: 0; }
.alert-list li { padding: 4px 0; border-top: 1px dashed #f0d3d3; display: flex; flex-wrap: wrap; gap: 8px; }
.alert-list li:first-child { border-top: 0; }
.alert-note { color: #7a3b3b; }
.alert-due { color: var(--muted); font-size: 12px; }

.calm-box {
  background: var(--ok-soft); border: 1px solid #cbe7d7; color: #2a6b47;
  border-radius: 10px; padding: 10px 18px; margin-bottom: 16px;
}

/* 工具条 */
.toolbar { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 12px; flex-wrap: wrap; }
.tabs { display: flex; gap: 4px; background: #e9edf3; border-radius: 8px; padding: 3px; }
.tab { padding: 5px 14px; border-radius: 6px; color: var(--muted); font-size: 13px; }
.tab:hover { text-decoration: none; color: var(--text); }
.tab.on { background: #fff; color: var(--brand); font-weight: 600; box-shadow: 0 1px 2px rgba(20, 30, 50, .08); }
.search { display: flex; gap: 8px; }
.search input { width: 260px; }

/* 表格 */
.table {
  width: 100%; border-collapse: separate; border-spacing: 0;
  background: var(--card); border: 1px solid var(--line); border-radius: 10px; overflow: hidden;
}
.table th, .table td { padding: 10px 12px; text-align: left; border-bottom: 1px solid var(--line); vertical-align: middle; }
.table th { background: #f7f9fc; font-size: 12px; color: var(--muted); font-weight: 600; white-space: nowrap; }
.table tbody tr:last-child td { border-bottom: 0; }
.table tbody tr:hover { background: #fafbfd; }
.cell-name a { font-weight: 600; }
.mono { font-variant-numeric: tabular-nums; }
.col-act { white-space: nowrap; }
.col-act .inline { display: inline; }

/* 标签 */
.tag {
  display: inline-block; padding: 1px 8px; border-radius: 5px;
  font-size: 12px; line-height: 1.7; white-space: nowrap;
}
.tag-expired { background: var(--danger-soft); color: var(--danger); font-weight: 600; }
.tag-urgent { background: var(--urgent-soft); color: var(--urgent); font-weight: 600; }
.tag-warning { background: var(--warning-soft); color: var(--warning); }
.tag-notice { background: var(--notice-soft); color: var(--notice); }
.tag-normal { background: var(--ok-soft); color: var(--ok); }
.tag-danger { background: var(--danger-soft); color: var(--danger); }

/* 表单 */
.field { display: flex; flex-direction: column; gap: 5px; margin-bottom: 14px; }
.field > span { font-size: 13px; color: #465062; }
.field .hint { font-size: 12px; color: var(--muted); }
.field .req { color: var(--danger); }
input, select, textarea {
  font: inherit; color: inherit; background: #fff;
  border: 1px solid #ccd3de; border-radius: 7px; padding: 7px 10px;
}
input:focus, select:focus, textarea:focus { outline: 2px solid #bcd6f2; border-color: var(--brand); }
textarea { resize: vertical; }
.checkbox { flex-direction: row; align-items: center; gap: 8px; }
.checkbox input { width: auto; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 0 20px; }
.form-card { max-width: 880px; }
.form-card.narrow { max-width: 460px; }
.form-title { margin: 0 0 16px; font-size: 18px; }
.form-actions { display: flex; gap: 10px; margin-top: 18px; }
.err-list { margin: 0; padding-left: 18px; }

/* 按钮 */
.btn {
  display: inline-block; padding: 6px 14px; border-radius: 7px;
  border: 1px solid #ccd3de; background: #fff; color: var(--text);
  font: inherit; font-size: 13px; cursor: pointer; white-space: nowrap;
}
.btn:hover { background: #f3f6fa; text-decoration: none; }
.btn-primary { background: var(--brand); border-color: var(--brand); color: #fff; }
.btn-primary:hover { background: var(--brand-dark); }
.btn-ghost { color: var(--muted); }
.btn-danger { color: var(--danger); border-color: #eec5c5; }
.btn-danger:hover { background: var(--danger-soft); }
.btn-sm { padding: 3px 9px; font-size: 12px; }
.btn-block { width: 100%; }

/* 登录 */
.login-wrap { display: flex; justify-content: center; padding: 60px 0; }
.login-card { width: 340px; }
.login-title { margin: 0; font-size: 20px; }
.login-sub { margin: 2px 0 18px; color: var(--muted); font-size: 13px; }
.alert-line {
  background: var(--danger-soft); border: 1px solid #f3c9c9; color: #a92929;
  border-radius: 7px; padding: 8px 12px; margin-bottom: 14px; font-size: 13px;
}

.empty { background: var(--card); border: 1px dashed var(--line); border-radius: 10px; padding: 40px; text-align: center; color: var(--muted); }

/* 统计网格变体 */
.stats-6 { grid-template-columns: repeat(6, 1fr); }
.stats-4 { grid-template-columns: repeat(4, 1fr); }
.stat-invoice .stat-num { color: var(--warning); }
.stat-receive .stat-num { color: var(--notice); }

/* 收付款标签 */
.tag-invoice { background: var(--warning-soft); color: #8a6a10; font-weight: 600; }
.tag-receive { background: var(--notice-soft); color: var(--notice); font-weight: 600; }
.tag-ok { background: var(--ok-soft); color: var(--ok); }
.tag-part { background: #eef1f6; color: #5b6678; }
.tag-warn { background: var(--urgent-soft); color: var(--urgent); }

/* 表格补充 */
.cell-sub { font-size: 12px; color: var(--muted); margin-top: 2px; }
.dim { color: var(--muted); }
.small { font-size: 12px; }
.row-dup { background: #fffaf0; }
.table-scroll { overflow-x: auto; }
.table-compact th, .table-compact td { padding: 7px 10px; font-size: 13px; }

/* 收款期次 */
.period-row td { background: #f8fafc; padding: 0 12px 10px; border-bottom: 1px solid var(--line); }
.periods summary {
  cursor: pointer; padding: 9px 4px; display: flex; align-items: center;
  gap: 8px; flex-wrap: wrap; font-size: 13px; color: var(--muted);
}
.period-sum-title { font-weight: 600; color: var(--text); }
.period-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(188px, 1fr));
  gap: 10px; padding: 4px 4px 10px;
}
.period-card { background: #fff; border: 1px solid var(--line); border-radius: 9px; padding: 10px 12px; }
.period-card.period-done { border-color: #cbe7d7; background: #fbfefc; }
.period-card.period-to_invoice { border-color: #e8d9a8; background: #fffdf6; }
.period-head { display: flex; justify-content: space-between; font-size: 12px; color: var(--muted); }
.period-amount { font-size: 16px; font-weight: 600; margin: 4px 0 8px; }
.period-actions { display: flex; gap: 6px; flex-wrap: wrap; }
.pill {
  display: inline-flex; align-items: center; gap: 5px; padding: 3px 9px;
  border: 1px solid #ccd3de; border-radius: 999px; background: #fff;
  font: inherit; font-size: 12px; color: var(--muted); cursor: pointer;
}
.pill:hover { background: #f3f6fa; }
.pill .pill-dot { width: 7px; height: 7px; border-radius: 50%; background: #c3cbd8; display: inline-block; }
.pill.on-ok, .pill.on-invoice { border-color: #b6ddc8; background: var(--ok-soft); color: var(--ok); font-weight: 600; }
.pill.on-ok .pill-dot, .pill.on-invoice .pill-dot { background: var(--ok); }
.period-foot { font-size: 12px; color: var(--muted); padding: 0 4px; }

/* 导入页 */
.lead { color: var(--muted); margin: 0 0 16px; }
.steps { padding-left: 20px; margin: 0 0 20px; }
.steps li { margin-bottom: 10px; }
.steps .hint { display: block; }
.note-box {
  margin-top: 20px; background: var(--notice-soft); border: 1px solid #cfe0f2;
  border-radius: 9px; padding: 12px 16px; font-size: 13px;
}
.note-box .note-title { font-weight: 600; color: var(--notice); margin-bottom: 6px; }
.note-box p { margin: 6px 0; color: #3d4c60; }
.meta-line { font-size: 13px; color: var(--muted); margin-bottom: 14px; }
.err-text, .stat-err { color: var(--danger); }
.warn-text { color: var(--urgent); }
.stat-ok { color: var(--ok); }
.mode-pick {
  margin: 16px 0 4px; padding: 12px 14px; background: #f7f9fc;
  border: 1px solid var(--line); border-radius: 9px; font-size: 13px;
  display: flex; flex-direction: column; gap: 7px;
}
.mode-pick .mode-title { font-weight: 600; color: var(--muted); }
.mode-pick label { display: flex; align-items: center; gap: 7px; }

@media (max-width: 1100px) {
  .stats-6 { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 860px) {
  .stats, .stats-6, .stats-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-2 { grid-template-columns: 1fr; }
  .nav { gap: 10px; font-size: 12px; }
  .search input { width: 160px; }
  .table { display: block; overflow-x: auto; }
}