:root {
  --bg: #f3f5f9;
  --card: #ffffff;
  --border: #e5e8ef;
  --text: #1f2937;
  --text-2: #6b7280;
  --primary: #2563eb;
  --primary-weak: #eff4ff;
  --up: #e02424;
  --up-bg: #fdecec;
  --down: #0e9f6e;
  --down-bg: #e8f7f1;
  --flat: #9ca3af;
  --sidebar: #182238;
  --sidebar-text: #aeb9cc;
  --radius: 12px;
  --shadow: 0 1px 3px rgba(16, 24, 40, 0.08);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html, body { height: 100%; }
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
}
a { color: var(--primary); text-decoration: none; }
button { font-family: inherit; cursor: pointer; }
input, select { font-family: inherit; }

.app-shell { display: flex; min-height: 100vh; }

/* ---------- 侧边栏 ---------- */
.sidebar {
  width: 218px;
  background: var(--sidebar);
  color: var(--sidebar-text);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0; bottom: 0; left: 0;
  z-index: 20;
}
.brand {
  display: flex; align-items: center; gap: 10px;
  padding: 20px 18px;
  color: #fff; font-size: 17px; font-weight: 700;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.brand .logo { font-size: 24px; }
.nav { padding: 12px 10px; flex: 1; overflow-y: auto; }
.nav-item {
  display: flex; align-items: center; gap: 10px;
  padding: 11px 14px; margin-bottom: 4px;
  border-radius: 8px; cursor: pointer;
  color: var(--sidebar-text); font-size: 14px;
  border: none; background: none; width: 100%; text-align: left;
  transition: background 0.15s;
}
.nav-item:hover { background: rgba(255,255,255,0.07); color: #fff; }
.nav-item.active { background: var(--primary); color: #fff; }
.nav-item .ic { font-size: 17px; }
.side-user {
  padding: 14px 16px; border-top: 1px solid rgba(255,255,255,0.08);
  display: flex; align-items: center; gap: 10px;
}
.avatar {
  width: 34px; height: 34px; border-radius: 50%;
  background: var(--primary); color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; flex-shrink: 0;
}
.side-user .un { font-size: 13px; color: #fff; max-width: 110px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.logout-btn { margin-left: auto; background: none; border: none; color: var(--sidebar-text); font-size: 16px; padding: 4px; }
.logout-btn:hover { color: #fff; }

/* ---------- 主区域 ---------- */
.main { flex: 1; margin-left: 218px; display: flex; flex-direction: column; min-width: 0; }
.topbar {
  height: 58px; background: var(--card);
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center; gap: 14px;
  padding: 0 22px; position: sticky; top: 0; z-index: 15;
}
.topbar .page-title { font-size: 16px; font-weight: 700; }
.global-search {
  flex: 1; max-width: 420px; position: relative;
}
.global-search input {
  width: 100%; padding: 9px 14px 9px 34px;
  border: 1px solid var(--border); border-radius: 8px;
  background: var(--bg); outline: none; font-size: 13px;
}
.global-search input:focus { border-color: var(--primary); background: #fff; }
.global-search .search-ic { position: absolute; left: 10px; top: 50%; transform: translateY(-50%); color: var(--text-2); }
.topbar .spacer { flex: 1; }
.market-status {
  font-size: 12px; padding: 4px 10px; border-radius: 20px;
  background: var(--down-bg); color: var(--down);
}
.market-status.open { background: var(--up-bg); color: var(--up); }
.bell { position: relative; background: none; border: none; font-size: 19px; padding: 6px; }
.bell .badge {
  position: absolute; top: -2px; right: -4px; min-width: 16px; height: 16px;
  background: var(--up); color: #fff; font-size: 10px; border-radius: 9px;
  display: flex; align-items: center; justify-content: center; padding: 0 4px;
}
.bell-dropdown {
  position: absolute; right: 0; top: 46px; width: 340px;
  background: var(--card); border: 1px solid var(--border); border-radius: 10px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.12); display: none; z-index: 30;
}
.bell-dropdown.show { display: block; }
.bell-dropdown .hd { padding: 10px 14px; font-weight: 700; border-bottom: 1px solid var(--border); display: flex; justify-content: space-between; }
.bell-dropdown .list { max-height: 320px; overflow-y: auto; }
.bell-item { padding: 10px 14px; border-bottom: 1px solid var(--border); font-size: 13px; cursor: pointer; }
.bell-item:hover { background: var(--bg); }
.bell-item .t { color: var(--text-2); font-size: 11px; margin-top: 3px; }
.bell-empty { padding: 24px; text-align: center; color: var(--text-2); }

.content { padding: 22px; flex: 1; }

/* ---------- 通用组件 ---------- */
.card {
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius); box-shadow: var(--shadow);
  padding: 18px; margin-bottom: 18px;
}
.card-title { font-size: 15px; font-weight: 700; margin-bottom: 14px; display: flex; align-items: center; gap: 8px; }
.card-title .sub { font-size: 12px; color: var(--text-2); font-weight: 400; }
.grid { display: grid; gap: 16px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-5 { grid-template-columns: repeat(5, 1fr); }

.stat-card { padding: 16px 18px; }
.stat-card .label { color: var(--text-2); font-size: 12px; margin-bottom: 8px; }
.stat-card .value { font-size: 22px; font-weight: 700; font-variant-numeric: tabular-nums; }
.stat-card .extra { font-size: 12px; margin-top: 6px; color: var(--text-2); }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  border: 1px solid var(--border); background: var(--card); color: var(--text);
  border-radius: 8px; padding: 7px 14px; font-size: 13px;
  transition: all 0.15s; white-space: nowrap;
}
.btn:hover { border-color: var(--primary); color: var(--primary); }
.btn-primary { background: var(--primary); border-color: var(--primary); color: #fff; }
.btn-primary:hover { background: #1d4ed8; color: #fff; }
.btn-danger { color: var(--up); border-color: #f3c1c1; }
.btn-danger:hover { background: var(--up-bg); border-color: var(--up); color: var(--up); }
.btn-buy { color: var(--up); border-color: #f3c1c1; }
.btn-buy:hover { background: var(--up-bg); border-color: var(--up); color: var(--up); }
.btn-sell { color: var(--down); border-color: #b9e3d2; }
.btn-sell:hover { background: var(--down-bg); border-color: var(--down); color: var(--down); }
.btn-sm { padding: 4px 10px; font-size: 12px; }
.btn[disabled] { opacity: 0.5; cursor: not-allowed; }

.tag {
  display: inline-block; padding: 2px 8px; border-radius: 5px; font-size: 12px;
}
.tag-buy { background: var(--up-bg); color: var(--up); }
.tag-sell { background: var(--down-bg); color: var(--down); }
.tag-muted { background: var(--bg); color: var(--text-2); }

.up { color: var(--up); }
.down { color: var(--down); }
.flat { color: var(--flat); }
.num { font-variant-numeric: tabular-nums; }

.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 13px; }
th, td { padding: 11px 12px; text-align: right; border-bottom: 1px solid var(--border); white-space: nowrap; }
th:first-child, td:first-child { text-align: left; }
th { color: var(--text-2); font-weight: 600; background: #fafbfc; font-size: 12px; }
tr:hover td { background: #fafbfd; }
.ticker { display: flex; flex-direction: column; }
.ticker .code { font-size: 11px; color: var(--text-2); }

.empty { text-align: center; color: var(--text-2); padding: 42px 0; }
.empty .big { font-size: 40px; margin-bottom: 10px; }

.form-row { margin-bottom: 14px; }
.form-row label { display: block; font-size: 13px; color: var(--text-2); margin-bottom: 6px; }
.input, .select {
  width: 100%; padding: 9px 12px; border: 1px solid var(--border);
  border-radius: 8px; outline: none; font-size: 14px; background: #fff;
}
.input:focus, .select:focus { border-color: var(--primary); }

.toast {
  position: fixed; top: 20px; left: 50%; transform: translateX(-50%);
  background: #1f2937; color: #fff; padding: 10px 18px; border-radius: 8px;
  font-size: 13px; z-index: 100; box-shadow: 0 6px 20px rgba(0,0,0,0.2);
  animation: toast-in 0.2s ease; max-width: 70vw;
}
.toast.err { background: var(--up); }
.toast.ok { background: var(--down); }
@keyframes toast-in { from { opacity: 0; transform: translate(-50%, -8px); } to { opacity: 1; transform: translate(-50%, 0); } }

/* ---------- 弹窗 ---------- */
.modal-mask {
  position: fixed; inset: 0; background: rgba(15, 23, 42, 0.45);
  display: flex; align-items: center; justify-content: center; z-index: 80;
}
.modal {
  background: var(--card); border-radius: 14px; width: 460px; max-width: 92vw;
  box-shadow: 0 20px 50px rgba(0,0,0,0.25); overflow: hidden;
}
.modal .m-hd { padding: 16px 20px; border-bottom: 1px solid var(--border); font-weight: 700; display: flex; justify-content: space-between; align-items: center; }
.modal .m-close { background: none; border: none; font-size: 18px; color: var(--text-2); }
.modal .m-bd { padding: 18px 20px; }
.modal .m-ft { padding: 14px 20px; border-top: 1px solid var(--border); display: flex; justify-content: flex-end; gap: 10px; }

.side-tabs { display: flex; gap: 8px; margin-bottom: 16px; }
.side-tab { flex: 1; padding: 8px 0; border-radius: 8px; border: 1px solid var(--border); background: #fff; font-size: 14px; }
.side-tab.active-buy { background: var(--up-bg); border-color: var(--up); color: var(--up); font-weight: 700; }
.side-tab.active-sell { background: var(--down-bg); border-color: var(--down); color: var(--down); font-weight: 700; }
.price-big { font-size: 26px; font-weight: 700; font-variant-numeric: tabular-nums; margin-bottom: 4px; }
.fee-line { background: var(--bg); border-radius: 8px; padding: 10px 12px; font-size: 12px; color: var(--text-2); line-height: 1.9; }
.fee-line b { color: var(--text); }

/* ---------- 登录注册 ---------- */
.auth-wrap { min-height: 100vh; display: flex; align-items: center; justify-content: center; background: linear-gradient(135deg, #101b33 0%, #1e3a8a 100%); padding: 20px; }
.auth-card { background: #fff; border-radius: 16px; width: 400px; max-width: 100%; padding: 34px 32px; box-shadow: 0 20px 60px rgba(0,0,0,0.3); }
.auth-card .logo-line { text-align: center; margin-bottom: 8px; font-size: 34px; }
.auth-card h1 { text-align: center; font-size: 20px; margin-bottom: 4px; }
.auth-card .slogan { text-align: center; color: var(--text-2); font-size: 12px; margin-bottom: 24px; }
.auth-tabs { display: flex; margin-bottom: 18px; border-bottom: 2px solid var(--border); }
.auth-tab { flex: 1; padding: 10px; text-align: center; background: none; border: none; font-size: 15px; color: var(--text-2); border-bottom: 2px solid transparent; margin-bottom: -2px; }
.auth-tab.active { color: var(--primary); border-bottom-color: var(--primary); font-weight: 700; }
.auth-submit { width: 100%; padding: 11px; margin-top: 6px; font-size: 15px; }
.auth-foot { text-align: center; color: var(--text-2); font-size: 12px; margin-top: 16px; }

/* ---------- 搜索页 ---------- */
.search-box { position: relative; margin-bottom: 18px; }
.search-box input {
  width: 100%; padding: 14px 18px 14px 44px; font-size: 15px;
  border: 1px solid var(--border); border-radius: 12px; outline: none;
  box-shadow: var(--shadow);
}
.search-box input:focus { border-color: var(--primary); }
.search-box .search-ic { position: absolute; left: 15px; top: 50%; transform: translateY(-50%); font-size: 18px; color: var(--text-2); }
.suggest {
  position: absolute; top: 52px; left: 0; right: 0; z-index: 40;
  background: var(--card); border: 1px solid var(--border); border-radius: 12px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.12); max-height: 340px; overflow-y: auto;
}
.suggest .item { padding: 11px 16px; display: flex; align-items: center; gap: 12px; cursor: pointer; }
.suggest .item:hover, .suggest .item.sel { background: var(--primary-weak); }
.suggest .item .nm { font-weight: 600; }
.suggest .item .cd { color: var(--text-2); font-size: 12px; }
.suggest .item .ty { margin-left: auto; font-size: 11px; color: var(--text-2); }
.stock-detail-head { display: flex; align-items: flex-end; gap: 18px; flex-wrap: wrap; }
.stock-detail-head .nm { font-size: 20px; font-weight: 700; }
.stock-detail-head .cd { color: var(--text-2); font-size: 13px; margin-top: 4px; }
.stock-detail-head .price { font-size: 30px; font-weight: 700; font-variant-numeric: tabular-nums; }
.stock-detail-head .chg { font-size: 15px; }
.stock-actions { margin-left: auto; display: flex; gap: 8px; flex-wrap: wrap; }
.kline-tabs { display: flex; gap: 6px; margin: 12px 0; }
.kline-tab { padding: 4px 12px; border-radius: 6px; border: 1px solid var(--border); background: #fff; font-size: 12px; }
.kline-tab.active { background: var(--primary); border-color: var(--primary); color: #fff; }

/* ---------- 监控 ---------- */
.monitor-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 16px; }
.monitor-card { background: var(--card); border: 1px solid var(--border); border-radius: 12px; padding: 16px; }
.monitor-card .hd { display: flex; align-items: center; }
.monitor-card .price { font-size: 24px; font-weight: 700; font-variant-numeric: tabular-nums; }
.alert-item { display: flex; align-items: center; justify-content: space-between; background: var(--bg); border-radius: 7px; padding: 6px 9px; margin-top: 6px; font-size: 12px; }
.alert-item .trig { color: var(--up); }

/* ---------- 响应式 ---------- */
@media (max-width: 1100px) {
  .sidebar { width: 64px; }
  .sidebar .brand span.txt, .sidebar .nav-item span.txt, .side-user .un, .side-user .logout-btn { display: none; }
  .nav-item { justify-content: center; }
  .main { margin-left: 64px; }
  .grid-4, .grid-5 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: 1fr; }
  .grid-2 { grid-template-columns: 1fr; }
}