:root {
  /* 浅色股票市场配色 */
  --bg: #f4f6f9;
  --card: #ffffff;
  --border: #e5e9f2;

  --text: #1f2937;
  --sub: #6b7280;

  /* 中国股市：红涨绿跌 */
  --up: #d93025;     /* 上涨红 */
  --down: #0f9d58;  /* 下跌绿 */

  --primary: #2563eb;
  --shadow: rgba(0,0,0,.06);
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto;
}

/* ================= 顶部导航 ================= */

.nav {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  width: 100%;
  display: flex;
  justify-content: space-around;
  background: #ffffff;
  padding: 14px 0;
  border-bottom: 1px solid var(--border);
}

.nav a {
  color: var(--sub);
  text-decoration: none;
  font-size: 15px;
  font-weight: bold;
}

.nav a:hover {
  color: var(--text);
}

.container {
  padding: 11px;
}

/* ================= Banner ================= */

.banner {
  background: linear-gradient(135deg,#3b82f6,#2563eb);
  border-radius: 14px;
  padding: 8px;
  margin-bottom: 16px;
  color: #fff;
  box-shadow: 0 8px 20px var(--shadow);
}

.banner h2 {
  margin: 0;
  font-size: 22px;
  font-weight: 600;
}

.banner p {
  margin-top: 6px;
  font-size: 13px;
  opacity: .9;
}
.banner-img {
  height: 150px;
  border-radius: 8px;
  overflow: hidden;
  margin-bottom: 16px;
}

.banner-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
/* ================= 搜索 ================= */

.search input {
  width: 100%;
  padding: 12px 0;
  border-radius: 10px;
  background: #fff;
  border: 1px solid var(--border);
  color: var(--text);
  outline: none;
}

.search input::placeholder {
  color: var(--sub);
}
.search input::placeholder {
  padding-left: 8px;
}
/* ================= 区块标题 ================= */

.section-title {
  margin: 18px 0 10px;
  font-size: 13px;
  color: var(--sub);
}

/* ================= 币种卡片 ================= */
#list{
  padding-bottom: 50px;
}
.coin-card {
  background: var(--card);
  border-radius: 14px;
  padding: 14px;
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  border: 1px solid var(--border);
  box-shadow: 0 6px 14px var(--shadow);
}

.coin-info {
  flex: 1;
}

.coin-info b {
  font-size: 15px;
  font-weight: 600;
}

.coin-info span {
  display: block;
  font-size: 12px;
  color: var(--sub);
  margin-top: 2px;
}

.price {
  font-size: 16px;
  font-weight: 600;
  margin-top: 6px;
}

.up { color: var(--up); }
.down { color: var(--down); }

/* ================= 涨跌标签 ================= */

.badge {
  font-size: 12px;
  padding: 3px 8px;
  border-radius: 999px;
  margin-top: 6px;
  display: inline-block;
  background: #f3f4f6;
}

.badge.up {
  background: rgba(217,48,37,.12);
  color: var(--up);
}

.badge.down {
  background: rgba(15,157,88,.12);
  color: var(--down);
}

/* ================= 按钮 ================= */

.btn {
  background: var(--primary);
  color: #fff;
  padding: 8px 14px;
  border-radius: 8px;
  font-size: 12px;
  cursor: pointer;
  white-space: nowrap;
}

.btn.gray {
  background: #e5e7eb;
  color: #374151;
}

/* ================= Mini 走势图 ================= */

canvas.mini {
  width: 90px !important;
  height: 42px !important;
  margin-right: 10px;
}

/* ================= 底部操作 ================= */

.fixed-bottom {
  /* position: fixed;
  bottom: 0;
  left: 0;
  right: 0; */
  padding: 14px;
  background: #ffffff;
  border-top: 1px solid var(--border);
}

.fixed-bottom .btn {
  /* width: 100%; */
  text-align: center;
  font-size: 15px;
  padding: 14px;
}

/* ================= 热门轮播 ================= */

.hot-wrapper {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  margin-bottom: 18px;
}

.hot-scroll {
  display: flex;
  gap: 14px;
}

.hot-card {
  min-width: 170px;
  background: #ffffff;
  border-radius: 14px;
  padding: 14px;
  border: 1px solid var(--border);
  box-shadow: 0 6px 14px var(--shadow);
}

.hot-card b {
  font-size: 15px;
}

.hot-card span {
  font-size: 12px;
  color: var(--sub);
}

.hot-price {
  font-size: 15px;
  font-weight: 600;
  margin-top: 6px;
}

.hot-change {
  font-size: 12px;
  margin-top: 4px;
}

/* ================= 弹窗 ================= */

.popup {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%,-50%);
  background: rgba(0,0,0,.8);
  color: #fff;
  padding: 14px 24px;
  border-radius: 12px;
  font-size: 14px;
  display: none;
}