/* ===== 基础重置 ===== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  background-color: #1a6fc4;
  min-height: 100vh;
  overflow-x: hidden;
}

img {
  display: block;
  max-width: 100%;
}

a {
  text-decoration: none;
}

/* ===== 页面容器 ===== */
.page-wrapper {
  width: 100%;
  min-height: 15.55rem;
  background: url(../img/index/bg.png) no-repeat top center;
  background-size: 19.2rem auto;
  position: relative;
}

/* ===== 内容容器 1400px ===== */
.content-container {
  width: 14rem;
  margin: 0 auto;
  position: relative;
}

/* ===== LOGO区域 ===== */
.page-logo {
  padding-top: 0.4rem;
  padding-left: 0.1rem;
}

.page-logo img {
  width: 3rem;
  height: auto;
}

/* ===== 主标题区域 ===== */
/* 用 padding 而非 margin，避免 margin 塔陷把 .page-wrapper 背景图往下推 */
.page-title {
  text-align: center;
  padding-top: 0.3rem;
}

.page-title img {
  width: 11rem;
  height: auto;
  margin: 0 auto;
  margin-top: 0.7rem;
}

/* ===== 副标题（黄色提示字） ===== */
.page-subtitle {
  text-align: center;
  margin-top: 0.28rem;
}

.page-subtitle img {
  width: 11.5rem;
  height: auto;
  margin: 0 auto;
}

/* ===== 赛道标题（主体赛/专项赛） ===== */
.track-header {
  text-align: center;
  margin-top: 0.45rem;
}

.track-header img {
  width: 14rem;
  height: auto;
  margin: 0 auto;
}

/* ===== 赛道卡片区 ===== */
.track-cards {
  display: flex;
  align-items: stretch;
  margin-top: 0.3rem;
  gap: 2%;
}

.track-cards__left {
  display: flex;
  gap: 1.6%;
  width: 58%;
  flex-shrink: 0;
}

.track-cards__left .track-card {
  flex-shrink: 1;
  min-width: 0;
}

/* 按原始图片比例分配宽度: 334:424:337 */
.track-cards__left .track-card:nth-child(1) { flex: 334; }
.track-cards__left .track-card:nth-child(2) { flex: 424; }
.track-cards__left .track-card:nth-child(3) { flex: 337; }

.track-cards__left .track-card img {
  width: 100%;
  height: auto;
}

.track-cards__right {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 40%;
  flex-shrink: 0;
}

.track-cards__right .track-card {
  width: 100%;
}

.track-cards__right .track-card-img {
  width: 100%;
  height: auto;
}

/* ===== 报名查询按钮 ===== */
.btn-query {
  display: block;
  margin: 0.18rem auto 0;
  text-align: center;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.btn-query img {
  width: 70%;
  height: auto;
  margin: 0 auto;
}

.btn-query:hover {
  transform: scale(1.05);
  opacity: 0.9;
}

/* ===== 赛道卡片悬浮效果 ===== */
.track-card {
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  border-radius: 0.1rem;
}

.track-card:hover {
  transform: translateY(-0.04rem);
}

/* ===== 底部版权（页面最底部） ===== */
.page-footer {
  position: absolute;
  bottom: -0.02rem;
  left: 0;
  right: 0;
  text-align: center;
}

.page-footer a {
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.14rem;
}

.page-footer a:hover {
  color: #fff;
}