/* ============================================================
   共享基础样式 · 10套赚钱系统通用
   类名速查:
   布局:  .container .nav .nav-brand .nav-links .hero .footer
   文本:  .title .subtitle .muted .price
   网格:  .grid .grid-2 .grid-3 .stat-grid
   卡片:  .card  (内边距直接用 .pad 或自带)
   按钮:  .btn .btn-primary .btn-ghost .btn-success .btn-danger .btn-sm .btn-block
   表单:  .form-item .label .input .select .textarea .hint
   表格:  .table
   标记:  .badge .badge-success .badge-warning .badge-danger .badge-info
   提示:  .alert .alert-success .alert-warning .alert-danger .alert-info
   其他:  .tabs .tab .ad-slot .empty .divider .list .list-item
   工具:  .row .between .center .gap8 .gap16 .mt8 .mt16 .mb8 .mb16 .right
   ============================================================ */
:root {
  --primary: #5b6cff;
  --primary-dark: #4453d8;
  --primary-light: #eceefe;
  --success: #18a058;
  --warning: #f0a020;
  --danger: #d03050;
  --info: #2080f0;
  --bg: #f5f6fa;
  --card: #ffffff;
  --text: #1f2329;
  --text-2: #646a73;
  --border: #e5e6eb;
  --radius: 14px;
  --shadow: 0 2px 12px rgba(31, 35, 41, .08);
  --shadow-lg: 0 8px 30px rgba(31, 35, 41, .12);
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { -webkit-text-size-adjust: 100%; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB",
    "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  font-size: 15px;
  min-height: 100vh;
}
a { color: var(--primary); text-decoration: none; }
a:hover { color: var(--primary-dark); }
img { max-width: 100%; }

/* ---------- 布局 ---------- */
.container { max-width: 1080px; margin: 0 auto; padding: 0 16px; }
.nav {
  background: var(--card);
  box-shadow: var(--shadow);
  padding: 12px 0;
  position: sticky; top: 0; z-index: 100;
}
.nav .container { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.nav-brand { font-size: 18px; font-weight: 700; color: var(--text); display: flex; align-items: center; gap: 8px; }
.nav-brand a { color: inherit; }
.nav-links { display: flex; gap: 16px; align-items: center; flex-wrap: wrap; }
.nav-links a { color: var(--text-2); font-size: 14px; }
.nav-links a:hover { color: var(--primary); }
.hero {
  padding: 48px 0 36px;
  text-align: center;
  background: linear-gradient(160deg, var(--primary-light) 0%, var(--bg) 70%);
}
.hero h1 { font-size: 30px; margin-bottom: 10px; letter-spacing: 1px; }
.hero p { color: var(--text-2); font-size: 16px; max-width: 640px; margin: 0 auto; }
.footer { border-top: 1px solid var(--border); margin-top: 48px; padding: 20px 0 32px; color: var(--text-2); font-size: 13px; text-align: center; }

/* ---------- 文本 ---------- */
.title { font-size: 20px; font-weight: 700; margin-bottom: 6px; }
.subtitle { color: var(--text-2); font-size: 14px; }
.muted { color: var(--text-2); font-size: 13px; }
.price { color: var(--danger); font-weight: 700; font-size: 20px; }
.price::before { content: "¥"; font-size: 13px; margin-right: 2px; }

/* ---------- 网格 ---------- */
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 16px; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 14px; }
.stat-card {
  background: var(--card); border-radius: var(--radius); box-shadow: var(--shadow);
  padding: 18px; text-align: center;
}
.stat-card .num { font-size: 26px; font-weight: 800; color: var(--primary); }
.stat-card .lbl { color: var(--text-2); font-size: 13px; margin-top: 4px; }

/* ---------- 卡片 ---------- */
.card {
  background: var(--card); border-radius: var(--radius); box-shadow: var(--shadow);
  padding: 20px; margin-bottom: 16px;
}
.card-hover { transition: transform .15s, box-shadow .15s; }
.card-hover:hover { transform: translateY(-3px); box-shadow: var(--shadow-lg); }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  border: 1px solid transparent; border-radius: 10px; cursor: pointer;
  padding: 9px 20px; font-size: 15px; line-height: 1.4;
  background: var(--primary); color: #fff; font-family: inherit;
  transition: opacity .15s, transform .05s; user-select: none; text-decoration: none;
}
.btn:hover { opacity: .88; color: #fff; }
.btn:active { transform: scale(.98); }
.btn-ghost { background: transparent; color: var(--primary); border-color: var(--primary); }
.btn-ghost:hover { background: var(--primary-light); color: var(--primary-dark); }
.btn-success { background: var(--success); }
.btn-success:hover { color: #fff; }
.btn-danger { background: var(--danger); }
.btn-danger:hover { color: #fff; }
.btn-sm { padding: 4px 12px; font-size: 13px; border-radius: 8px; }
.btn-block { display: flex; width: 100%; }
.btn[disabled] { opacity: .5; cursor: not-allowed; }

/* ---------- 表单 ---------- */
.form-item { margin-bottom: 16px; }
.label { display: block; font-size: 14px; font-weight: 600; margin-bottom: 6px; }
.label .req { color: var(--danger); margin-left: 2px; }
.input, .select, .textarea {
  width: 100%; border: 1px solid var(--border); border-radius: 10px;
  padding: 9px 12px; font-size: 15px; font-family: inherit; color: var(--text);
  background: var(--card); outline: none; transition: border-color .15s, box-shadow .15s;
}
.input:focus, .select:focus, .textarea:focus {
  border-color: var(--primary); box-shadow: 0 0 0 3px rgba(91, 108, 255, .15);
}
.textarea { min-height: 90px; resize: vertical; }
.hint { font-size: 12px; color: var(--text-2); margin-top: 4px; }

/* ---------- 表格 ---------- */
.table { width: 100%; border-collapse: collapse; background: var(--card); border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); }
.table th, .table td { padding: 10px 12px; text-align: left; font-size: 14px; border-bottom: 1px solid var(--border); }
.table th { background: #fafbfc; color: var(--text-2); font-weight: 600; white-space: nowrap; }
.table tr:last-child td { border-bottom: none; }
.table-wrap { overflow-x: auto; }

/* ---------- 标记 ---------- */
.badge { display: inline-block; padding: 2px 10px; border-radius: 20px; font-size: 12px; background: var(--primary-light); color: var(--primary); }
.badge-success { background: #e8f7ef; color: var(--success); }
.badge-warning { background: #fdf3e4; color: var(--warning); }
.badge-danger { background: #fce9ed; color: var(--danger); }
.badge-info { background: #e6f1fe; color: var(--info); }

/* ---------- 提示 ---------- */
.alert { padding: 12px 16px; border-radius: 10px; font-size: 14px; margin-bottom: 16px; }
.alert-success { background: #e8f7ef; color: #0d7a44; }
.alert-warning { background: #fdf3e4; color: #b07513; }
.alert-danger { background: #fce9ed; color: #b02546; }
.alert-info { background: #e6f1fe; color: #1663c2; }

/* ---------- Tabs ---------- */
.tabs { display: flex; gap: 4px; border-bottom: 2px solid var(--border); margin-bottom: 18px; flex-wrap: wrap; }
.tab {
  padding: 8px 18px; cursor: pointer; font-size: 15px; color: var(--text-2);
  border-bottom: 2px solid transparent; margin-bottom: -2px; background: none; border-top: none; border-left: none; border-right: none; font-family: inherit;
}
.tab.active { color: var(--primary); font-weight: 600; border-bottom-color: var(--primary); }

/* ---------- 其他 ---------- */
.ad-slot {
  border: 2px dashed var(--border); border-radius: 10px; padding: 18px;
  text-align: center; color: var(--text-2); font-size: 13px; margin: 16px 0;
}
.empty { text-align: center; color: var(--text-2); padding: 40px 0; }
.divider { height: 1px; background: var(--border); margin: 16px 0; }
.list { list-style: none; }
.list-item { padding: 12px 4px; border-bottom: 1px solid var(--border); }
.list-item:last-child { border-bottom: none; }
.watermark { color: var(--text-2); font-size: 12px; opacity: .8; }

/* ---------- 工具类 ---------- */
.row { display: flex; align-items: center; gap: 10px; }
.between { justify-content: space-between; }
.center { justify-content: center; }
.gap8 { gap: 8px; } .gap16 { gap: 16px; }
.mt8 { margin-top: 8px; } .mt16 { margin-top: 16px; }
.mb8 { margin-bottom: 8px; } .mb16 { margin-bottom: 16px; }
.right { margin-left: auto; }
.wrap { flex-wrap: wrap; }

/* ---------- 响应式 ---------- */
@media (max-width: 720px) {
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
  .hero h1 { font-size: 24px; }
  .hero { padding: 34px 0 26px; }
  .nav-links { gap: 10px; }
  .table th, .table td { padding: 8px; font-size: 13px; }
}