/* =====================================================
 * 公共样式
 * ===================================================== */
:root {
  --bg: #f4f6f9;
  --card: #ffffff;
  --ink: #1f2937;
  --ink-2: #6b7280;
  --line: #e5e7eb;
  --accent: #2563eb;
  --cn: #dc2626;    /* 中国规范 - 红 */
  --eu: #2563eb;    /* 欧标 - 蓝 */
  --ok: #16a34a;
  --radius: 10px;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: -apple-system, "Segoe UI", "Microsoft YaHei", "PingFang SC", sans-serif;
  background: var(--bg); color: var(--ink); line-height: 1.65; font-size: 15px;
}

/* ---------- 顶部导航 ---------- */
.topnav {
  background: #111827; color: #fff; padding: 0 24px;
  display: flex; align-items: center; gap: 28px; height: 56px;
  position: sticky; top: 0; z-index: 100; flex-wrap: wrap;
}
.topnav .brand { font-weight: 700; font-size: 16px; letter-spacing: .5px; color:#fff; text-decoration:none; display:flex; align-items:center; gap:8px;}
.topnav .brand .logo { color: #60a5fa; }
.topnav a.nav-link {
  color: #9ca3af; text-decoration: none; font-size: 14px; padding: 4px 2px;
  border-bottom: 2px solid transparent;
}
.topnav a.nav-link:hover { color: #e5e7eb; }
.topnav a.nav-link.active { color: #fff; border-bottom-color: var(--accent); font-weight: 600; }

/* ---------- 布局 ---------- */
.container { max-width: 1200px; margin: 0 auto; padding: 24px 20px 60px; }
.page-title { font-size: 22px; font-weight: 700; margin-bottom: 4px; }
.page-sub { color: var(--ink-2); font-size: 13px; margin-bottom: 20px; }
.grid { display: grid; gap: 16px; }
.grid-2 { grid-template-columns: repeat(auto-fill, minmax(340px, 1fr)); }
.grid-4 { grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); }

/* ---------- 卡片 ---------- */
.card {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 18px 20px; box-shadow: 0 1px 3px rgba(0,0,0,.04);
}
.card.clickable { cursor: pointer; transition: box-shadow .15s, transform .15s; }
.card.clickable:hover { box-shadow: 0 6px 18px rgba(0,0,0,.10); transform: translateY(-2px); }
.card h3 { font-size: 16px; margin-bottom: 6px; }

/* ---------- 标签 ---------- */
.tag {
  display: inline-block; font-size: 12px; line-height: 1; padding: 4px 8px;
  border-radius: 999px; margin: 2px 4px 2px 0; white-space: nowrap;
}
.tag.cn   { background: #fee2e2; color: var(--cn); }
.tag.eu   { background: #dbeafe; color: var(--eu); }
.tag.intl { background: #ede9fe; color: #7c3aed; }
.tag.plain{ background: #f3f4f6; color: #4b5563; }
.tag.stage{ background: #ecfdf5; color: #047857; }
.tag.func { background: #fff7ed; color: #c2410c; }
.tag.todo { background: #fffbeb; color: #b45309; border: 1px dashed #f59e0b; }
.tag.done { background: #ecfdf5; color: #047857; }
.cat-title { font-size: 16px; font-weight: 700; margin: 26px 0 10px; padding-left: 10px; border-left: 4px solid var(--accent); }

/* ---------- 按钮 / 表单 ---------- */
.btn {
  display: inline-block; background: var(--accent); color: #fff; border: none;
  padding: 8px 18px; border-radius: 8px; font-size: 14px; cursor: pointer; text-decoration: none;
}
.btn:hover { filter: brightness(1.08); }
.btn.ghost { background: #fff; color: var(--accent); border: 1px solid var(--accent); }
.btn.small { padding: 4px 12px; font-size: 13px; }
.btn.danger { background: #fff; color: var(--dc2626); border: 1px solid #fca5a5; }

input[type=text], input[type=date], input[type=number], select, textarea {
  width: 100%; padding: 8px 10px; border: 1px solid var(--line); border-radius: 8px;
  font-size: 14px; font-family: inherit; background: #fff; color: var(--ink);
}
input:focus, select:focus, textarea:focus { outline: 2px solid #bfdbfe; border-color: var(--accent); }
label { font-size: 13px; color: var(--ink-2); display: block; margin-bottom: 4px; }
.field { margin-bottom: 12px; }

/* ---------- 筛选条 ---------- */
.filter-bar {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 14px 16px; margin-bottom: 18px; display: flex; flex-wrap: wrap; gap: 10px; align-items: center;
}
.filter-bar .sep { color: var(--line); }
.chip {
  border: 1px solid var(--line); background: #fff; border-radius: 999px;
  padding: 5px 14px; font-size: 13px; cursor: pointer; color: var(--ink-2);
}
.chip:hover { border-color: var(--accent); color: var(--accent); }
.chip.on { background: var(--accent); border-color: var(--accent); color: #fff; }

/* ---------- 表格 ---------- */
table { width: 100%; border-collapse: collapse; background: #fff; font-size: 14px; }
th, td { border: 1px solid var(--line); padding: 10px 12px; text-align: left; vertical-align: top; }
th { background: #f9fafb; font-weight: 600; white-space: nowrap; }
tr:hover td { background: #f8fafc; }

/* ---------- 时间线 ---------- */
.timeline { position: relative; padding-left: 24px; }
.timeline::before { content: ""; position: absolute; left: 6px; top: 4px; bottom: 4px; width: 2px; background: var(--line); }
.tl-item { position: relative; margin-bottom: 16px; }
.tl-item::before {
  content: ""; position: absolute; left: -24px; top: 8px; width: 12px; height: 12px;
  border-radius: 50%; background: #fff; border: 3px solid var(--accent);
}
.tl-item.family::before { border-color: var(--ok); }
.tl-date { font-size: 13px; color: var(--ink-2); }

/* ---------- 杂项 ---------- */
.muted { color: var(--ink-2); font-size: 13px; }
.empty { text-align: center; color: var(--ink-2); padding: 48px 0; }
.kv { font-size: 14px; }
.kv b { color: var(--ink); }
hr.soft { border: none; border-top: 1px solid var(--line); margin: 14px 0; }
.note {
  background: #fffbeb; border: 1px solid #fde68a; color: #92400e;
  border-radius: 8px; padding: 10px 14px; font-size: 13px; margin-bottom: 16px;
}
.note.blue { background: #eff6ff; border-color: #bfdbfe; color: #1e40af; }
code { background: #f3f4f6; padding: 1px 6px; border-radius: 4px; font-size: 13px; color:#b91c1c; }

/* Markdown 渲染区 */
.md h2 { font-size: 18px; margin: 18px 0 8px; }
.md h3 { font-size: 15px; margin: 14px 0 6px; }
.md h4 { font-size: 14px; margin: 10px 0 6px; }
.md p { margin: 8px 0; }
.md ul, .md ol { margin: 8px 0 8px 22px; }
.md li { margin: 4px 0; }

/* 首页快捷入口 */
.quick-card {
  text-align: center; padding: 26px 16px;
}
.quick-card .ico { font-size: 34px; margin-bottom: 8px; }
.quick-card .name { font-size: 16px; font-weight: 700; }
.quick-card .desc { font-size: 12px; color: var(--ink-2); margin-top: 4px; }

/* tabs */
.tabs { display: flex; gap: 0; border-bottom: 2px solid var(--line); margin-bottom: 18px; }
.tabs button {
  border: none; background: none; padding: 10px 20px; font-size: 15px; cursor: pointer;
  color: var(--ink-2); border-bottom: 2px solid transparent; margin-bottom: -2px;
}
.tabs button.on { color: var(--accent); border-bottom-color: var(--accent); font-weight: 600; }

#map { height: 560px; border-radius: var(--radius); border: 1px solid var(--line); }
.gm-style-iw { font-size: 13px; }