:root {
  --bg: #f5f6f8;
  --card: #ffffff;
  --text: #1f2329;
  --text-sub: #6b7280;
  --border: #e5e7eb;
  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  --danger: #dc2626;
  --green: #16a34a;
  --radius: 10px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
  line-height: 1.5;
}

.hidden { display: none !important; }

/* 登录页 */
.login-wrap {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
}
.login-card {
  background: var(--card);
  padding: 40px 32px;
  border-radius: 14px;
  width: 320px;
  text-align: center;
  box-shadow: 0 4px 20px rgba(0,0,0,0.06);
}
.logo { font-size: 26px; font-weight: 700; }
.sub { color: var(--text-sub); margin: 4px 0 24px; }
.login-card input {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 14px;
  text-align: center;
  outline: none;
}
.login-card input:focus { border-color: var(--primary); }
.btn-primary {
  width: 100%;
  margin-top: 12px;
  padding: 10px;
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: 8px;
  font-size: 14px;
  cursor: pointer;
}
.btn-primary:hover { background: var(--primary-hover); }
.err { color: var(--danger); font-size: 13px; margin-top: 10px; min-height: 18px; }

/* 内联弹窗 */
#modal-mask {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.35);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
}
.modal {
  background: #fff;
  border-radius: 12px;
  width: 360px;
  max-width: 90vw;
  padding: 20px;
  box-shadow: 0 10px 40px rgba(0,0,0,0.15);
}
.modal-title { font-size: 16px; font-weight: 600; margin-bottom: 14px; }
.modal-body { margin-bottom: 18px; }
.modal-text { color: var(--text-sub); font-size: 14px; line-height: 1.6; }
.modal-label { display: block; font-size: 12px; color: var(--text-sub); margin-bottom: 6px; }
.modal-input {
  width: 100%;
  padding: 9px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 14px;
  outline: none;
}
.modal-input:focus { border-color: var(--primary); }
.modal-foot { display: flex; justify-content: flex-end; gap: 10px; }
.btn-danger-solid {
  background: var(--danger);
  color: #fff;
  border: none;
  padding: 7px 14px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 13px;
}

/* 顶栏 */
.topbar {
  background: var(--card);
  border-bottom: 1px solid var(--border);
  padding: 0 20px;
  display: flex;
  align-items: center;
  gap: 20px;
  position: sticky;
  top: 0;
  z-index: 10;
}
.brand { font-size: 18px; font-weight: 700; padding: 14px 0; }
.tabs { display: flex; gap: 4px; flex: 1; }
.tab {
  border: none;
  background: none;
  padding: 14px 14px;
  font-size: 14px;
  cursor: pointer;
  color: var(--text-sub);
  border-bottom: 2px solid transparent;
}
.tab.active { color: var(--primary); border-bottom-color: var(--primary); font-weight: 600; }
.top-actions { display: flex; align-items: center; gap: 12px; }
.save-status { font-size: 12px; color: var(--text-sub); }
.btn-ghost {
  border: 1px solid var(--border);
  background: #fff;
  padding: 6px 12px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 13px;
  color: var(--text-sub);
}

.main { max-width: 1100px; margin: 24px auto; padding: 0 20px; }

/* 卡片 */
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
  margin-bottom: 16px;
}
.card-title {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.btn {
  border: 1px solid var(--border);
  background: #fff;
  padding: 7px 14px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 13px;
}
.btn:hover { border-color: var(--primary); color: var(--primary); }
.btn-primary-sm {
  background: var(--primary);
  color: #fff;
  border: none;
  padding: 7px 14px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 13px;
}
.btn-danger {
  color: var(--danger);
  border-color: #fecaca;
  background: #fff;
}
.btn-danger:hover { border-color: var(--danger); }

/* 表格 */
table { width: 100%; border-collapse: collapse; }
th, td {
  text-align: left;
  padding: 8px 10px;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}
th { color: var(--text-sub); font-weight: 600; font-size: 12px; white-space: nowrap; }
td input, td textarea, td select {
  width: 100%;
  border: 1px solid transparent;
  background: transparent;
  padding: 4px 6px;
  border-radius: 4px;
  font-size: 13px;
  font-family: inherit;
  resize: vertical;
}
td input:hover, td textarea:hover { border-color: var(--border); }
td input:focus, td textarea:focus, td select:focus {
  border-color: var(--primary);
  outline: none;
  background: #fff;
}
.row-del { color: var(--danger); cursor: pointer; background: none; border: none; font-size: 16px; }

/* 行程表格：宽列保底 + 窄屏横向滚动 */
.table-scroll { overflow-x: auto; }
.trip-table { min-width: 1480px; }
.trip-table th.wide { white-space: nowrap; }
.trip-table td textarea {
  width: 100%;
  min-width: 160px;   /* 约 11 个中文字 */
}
.trip-table td input:not([type="date"]):not([type="datetime-local"]) {
  min-width: 80px;
}
.trip-table td input[type="date"],
.trip-table td input[type="datetime-local"] {
  font-size: 12px;
  padding: 4px 2px;
  min-width: 120px;
}
textarea.auto-grow {
  overflow: hidden;
  min-height: 32px;
  line-height: 1.5;
  display: block;
  resize: none;
}
.date-btn {
  width: 100%;
  text-align: left;
  justify-content: flex-start;
  padding: 7px 10px;
  color: var(--text);
}
.date-btn:hover { border-color: var(--primary); }
.modal-row { margin-bottom: 12px; }
.modal-row .modal-input { margin-top: 4px; }

/* 行程头 */
.trip-card { margin-bottom: 20px; }
.trip-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 18px;
  cursor: pointer;
}
.trip-head:hover { border-color: var(--primary); }
.trip-head .name { font-size: 16px; font-weight: 600; }
.trip-head .meta { color: var(--text-sub); font-size: 13px; }

/* 表单 */
.form-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 10px; margin-bottom: 14px; }
.form-grid label { display: flex; flex-direction: column; gap: 4px; font-size: 12px; color: var(--text-sub); }
.form-grid input, .form-grid select {
  padding: 7px 10px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 13px;
}

.empty {
  text-align: center;
  color: var(--text-sub);
  padding: 40px 0;
}
.tag {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 20px;
  font-size: 12px;
  background: #f3f4f6;
}
.tag.star { color: #f59e0b; }

@media (max-width: 700px) {
  .topbar { flex-wrap: wrap; padding: 0 12px; }
  .main { padding: 0 12px; }
}