body { font-family: -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif; }
.hero { background: linear-gradient(135deg, #0d6efd, #3b82f6); }
.cat-card { background: #f1f5f9; transition: .2s; border: 1px solid #e2e8f0; }
.cat-card:hover { background: #e2e8f0; transform: translateY(-2px); }
.card { transition: .2s; border: none; }
.card:hover { transform: translateY(-3px); box-shadow: 0 .5rem 1rem rgba(0,0,0,.12) !important; }
.card-img-top { background: #eef2f7; }
a { color: inherit; }
.navbar-brand { letter-spacing: .5px; }

/* 全站留资浮窗 */
#floatCtaBtn {
  position: fixed;
  right: 20px;
  bottom: 24px;
  z-index: 1050;
  font-weight: 700;
  padding: 12px 20px;
  animation: ctaPulse 2.2s infinite;
}
@keyframes ctaPulse {
  0%, 100% { box-shadow: 0 6px 18px rgba(255,193,7,.5); }
  50% { box-shadow: 0 6px 26px rgba(255,193,7,.9); }
}
@media (max-width: 575px) {
  #floatCtaBtn { right: 12px; bottom: 16px; padding: 10px 14px; font-size: 14px; }
}

/* 导航栏紧凑化：缩小导航项间距与字号，避免换行 */
.navbar-nav .nav-link { padding: .4rem .7rem; font-size: 15px; }
.navbar-brand { font-size: 18px; }
.navbar .dropdown-menu { border-radius: 10px; box-shadow: 0 8px 24px rgba(0,0,0,.12); }
.navbar .dropdown-item { padding: .45rem 1rem; }
@media (max-width: 991px) {
  .navbar-collapse .navbar-text { margin-top: .5rem; text-align: left; }
}

/* ===================== 全屏晃动广告位 ===================== */
#homeAdOverlay {
  position: fixed; inset: 0; z-index: 1090;
  background: rgba(0,0,0,.55);
  display: flex; align-items: center; justify-content: center;
  padding: 16px;
}
#homeAdCard {
  position: relative;
  width: min(560px, 94vw);
  background: #fff; border-radius: 18px; overflow: hidden;
  box-shadow: 0 20px 60px rgba(0,0,0,.45);
  animation: adShake 1.6s ease-in-out infinite;
}
@keyframes adShake {
  0%, 100% { transform: translate(0,0) rotate(0deg); }
  15% { transform: translate(-6px,3px) rotate(-1.1deg); }
  30% { transform: translate(6px,-3px) rotate(1.1deg); }
  45% { transform: translate(-5px,2px) rotate(-0.8deg); }
  60% { transform: translate(5px,-2px) rotate(0.8deg); }
  75% { transform: translate(-3px,1px) rotate(-0.5deg); }
}
#homeAdCard.is-paused { animation-play-state: paused; }
#homeAdCard .ad-media { width: 100%; height: 240px; object-fit: cover; display: block; }
#homeAdCard .ad-body { padding: 18px 20px 20px; }
#homeAdCard .ad-school {
  display: inline-block; font-size: 12px; font-weight: 700;
  color: #d63384; background: #ffe3f1; border-radius: 999px; padding: 3px 12px; margin-bottom: 8px;
}
#homeAdCard .ad-title { font-size: 22px; font-weight: 800; color: #212529; margin: 0 0 6px; }
#homeAdCard .ad-subtitle { font-size: 15px; color: #6c757d; margin: 0 0 14px; line-height: 1.5; }
#homeAdCard .ad-cta {
  display: block; text-align: center; background: linear-gradient(135deg,#fd7e14,#ffc107);
  color: #212529; font-weight: 800; font-size: 16px; border-radius: 999px; padding: 12px; text-decoration: none;
}
#homeAdCard .ad-cta:hover { color: #212529; filter: brightness(.97); }
#homeAdClose {
  position: absolute; top: 10px; right: 10px; z-index: 2;
  width: 34px; height: 34px; border: none; border-radius: 50%;
  background: rgba(0,0,0,.5); color: #fff; font-size: 20px; line-height: 1; cursor: pointer;
}
#homeAdCard .ad-footnote {
  text-align: center; font-size: 11px; color: #adb5bd; margin-top: 10px;
}
@media (max-width: 575px) {
  #homeAdCard .ad-media { height: 170px; }
  #homeAdCard .ad-title { font-size: 19px; }
}

/* 广告位缩小态：全屏闪 1 秒后缩到右下角小挂件持续晃动 */
#homeAdOverlay { transition: background .45s ease; }
#homeAdOverlay.minimized { background: transparent; pointer-events: none; padding: 0; }
#homeAdCard { transition: width .45s ease; }
#homeAdCard.minimized {
  position: fixed; right: 14px; bottom: 96px; width: 216px;
  border-radius: 12px; box-shadow: 0 10px 28px rgba(0,0,0,.35);
  pointer-events: auto; cursor: pointer; z-index: 1080;
}
#homeAdCard.minimized .ad-media { height: 92px; }
#homeAdCard.minimized .ad-body { padding: 8px 10px 10px; }
#homeAdCard.minimized .ad-school { font-size: 10px; padding: 2px 8px; margin-bottom: 4px; }
#homeAdCard.minimized .ad-title { font-size: 13px; margin: 0 0 2px; }
#homeAdCard.minimized .ad-subtitle,
#homeAdCard.minimized .ad-cta,
#homeAdCard.minimized .ad-footnote { display: none; }
#homeAdCard.minimized #homeAdClose { width: 24px; height: 24px; font-size: 15px; top: 5px; right: 5px; }
@media (max-width: 575px) {
  #homeAdCard.minimized { right: 10px; bottom: 84px; width: 172px; }
  #homeAdCard.minimized .ad-media { height: 74px; }
}

/* ===================== 手机端精简化（≤575px） ===================== */
html, body { overflow-x: hidden; max-width: 100%; }

@media (max-width: 575px) {
  /* 学校卡片：按钮/徽章/标题整体收窄 */
  .card .btn { font-size: 12px; padding: .28rem .5rem; }
  .card .badge { font-size: 9px !important; padding: 2px 6px; }
  .card-title { font-size: 14px; }
  .card-body { padding: .5rem !important; }
  .card-img-top { height: 110px; }
  h4 { font-size: 17px; }
  h5 { font-size: 15px; }
  .container { padding-left: 10px; padding-right: 10px; }

  /* 全站咨询浮窗：缩小不挡内容 */
  #floatCtaBtn { right: 8px; bottom: 12px; padding: 8px 11px; font-size: 12px; }

  /* 广告挂件（缩小态）：全宽可见、更小巧 */
  #homeAdCard.minimized {
    right: 8px; bottom: 68px; width: 136px;
    max-width: calc(100vw - 16px);
  }
  #homeAdCard.minimized .ad-media { height: 60px; }
  #homeAdCard.minimized .ad-body { padding: 5px 7px 7px; }
  #homeAdCard.minimized .ad-school { font-size: 9px; padding: 1px 6px; margin-bottom: 3px; }
  #homeAdCard.minimized .ad-title { font-size: 11px; margin: 0; }
  #homeAdCard.minimized #homeAdClose { width: 20px; height: 20px; font-size: 13px; top: 3px; right: 3px; }

  /* 手机端晃动幅度减半，避免视觉出框 */
  #homeAdCard.minimized { animation: adShakeMobile 1.8s ease-in-out infinite; }
  @keyframes adShakeMobile {
    0%, 100% { transform: translate(0,0) rotate(0deg); }
    20% { transform: translate(-2px,1px) rotate(-.5deg); }
    40% { transform: translate(2px,-1px) rotate(.5deg); }
    60% { transform: translate(-2px,1px) rotate(-.4deg); }
    80% { transform: translate(1px,-1px) rotate(.3deg); }
  }
}