/* 下方旧活动首屏样式已停用，保留供回溯；目前仅启用文件末尾的轻量通知。 */
.hero-campaign-active .top-searcher {
  background-image:
    linear-gradient(to right, rgba(0, 25, 72, .68) 0%, rgba(0, 29, 78, .56) 28%, rgba(0, 32, 82, .3) 43%, rgba(0, 32, 82, 0) 57%, rgba(0, 32, 82, 0) 100%),
    url(/img/top/bg25.jpg);
  background-position: center top 25%;
}
.hero-campaign { display: none; }
.hero-campaign-active .top-searcher-box-title-wrapper > :not(.hero-campaign):not(.top-searcher-box-features) { display: none; }
.hero-campaign-active .top-searcher-box-title-wrapper { padding: 112px 0 12px; }
.hero-campaign-active .hero-campaign {
  display: grid;
  grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
  align-items: center;
  gap: 36px;
  width: 100%;
  padding: 0 24px;
  box-sizing: border-box;
  color: #fff;
}
.hero-campaign p, .hero-campaign h1, .hero-campaign h2, .hero-campaign dl, .hero-campaign dd { margin: 0; }
.hero-campaign-eyebrow { display: flex; align-items: center; flex-wrap: wrap; gap: 12px; font-size: 18px; font-weight: 600; letter-spacing: .12em; }
.hero-campaign-limited { flex: 0 0 auto; padding: 5px 10px; border-radius: 4px; background: #f45100; color: #fff; font-size: 14px; font-weight: 700; line-height: 1.3; letter-spacing: .04em; text-shadow: none; }
.hero-campaign-eyebrow::after { content: ''; width: 100px; height: 1px; background: rgba(255, 255, 255, .8); }
.hero-campaign-title { margin-top: 10px !important; font-family: inherit; font-size: clamp(38px, 4vw, 52px); font-weight: 800; line-height: 1.2; letter-spacing: .015em; }
.hero-campaign-title > span { display: inline-block; }
.hero-campaign-title > span + span { margin-left: .25em; }
.hero-campaign-offer { display: flex; align-items: center; gap: 16px; margin: -12px 0 12px !important; white-space: nowrap; }
.hero-campaign-fare { font-family: inherit; font-size: 34px; font-weight: 800; line-height: 1.2; border-bottom: 1px solid rgba(255, 255, 255, .8); padding-bottom: 4px; }
.hero-campaign-offer strong { color: #ffca51; font-family: inherit; font-size: 110px; font-weight: 700; line-height: 1.03; letter-spacing: -.025em; font-variant-numeric: lining-nums; }
.hero-campaign-offer strong > span { font-size: .62em; letter-spacing: -.015em; }
.hero-campaign-offer strong > .hero-campaign-off { margin-left: 9px; }
@supports ((background-clip: text) or (-webkit-background-clip: text)) {
  .hero-campaign-offer strong {
    background-image: linear-gradient(to bottom, #ffe49b 0%, #ffd16b 32%, #ffb72f 65%, #ff9900 100%);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
    text-shadow: none;
    filter: drop-shadow(0 2px 2px rgba(0, 17, 54, .18));
  }
}
.hero-campaign-tags { display: flex; flex-wrap: wrap; gap: 14px; }
.hero-campaign-tags > span { display: inline-flex; align-items: center; gap: 11px; padding: 9px 23px; border: none; border-radius: 24px; background: #0054cf; font-size: 21px; font-weight: 700; line-height: 1.3; }
.hero-campaign-tags > .hero-campaign-deadline { background: #F06703; }
.hero-campaign-destinations { margin-top: 13px !important; font-family: inherit; font-size: 28px; font-weight: 800; letter-spacing: .055em; line-height: 1.4; }
.hero-campaign-tagline { margin-top: 11px !important; font-size: 17px; line-height: 1.6; letter-spacing: .04em; }
.hero-campaign-dates { padding: 19px 22px 16px; border: 1px solid rgba(255, 255, 255, .62); border-radius: 14px; background: linear-gradient(120deg, rgba(255, 255, 255, .12), rgba(8, 28, 65, .3)), rgba(7, 29, 72, .4); backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(3px); box-shadow: inset 0 1px 0 rgba(255, 255, 255, .1), 0 8px 28px rgba(1, 17, 46, .18); }
.hero-campaign-dates h2 { display: flex; align-items: center; gap: 12px; padding-bottom: 12px; font-size: 23px; font-weight: 700; line-height: 1.4; }
.hero-campaign-dates h2 > i { font-size: 25px; }
.hero-campaign-dates dl > div { display: flex; align-items: baseline; border-top: 1px solid rgba(255, 255, 255, .55); padding: 10px 0; font-size: 20px; line-height: 1.5; }
.hero-campaign-dates dt { flex: 0 0 64px; font-weight: 700; }
.hero-campaign-dates dd { padding-left: 16px; border-left: 1px solid rgba(255, 255, 255, .65); font-variant-numeric: tabular-nums; }
.hero-campaign-date-range { display: inline-block; white-space: nowrap; }
.hero-campaign-dates > p { border-top: 1px solid rgba(255, 255, 255, .55); padding-top: 10px; font-size: 14px; line-height: 1.6; }
.hero-campaign-active .top-searcher-box-features { margin-top: 24px; }
@media (min-width: 768px) and (max-width: 1100px) {
  .hero-campaign-active .hero-campaign { gap: 28px; padding: 0 28px; }
  .hero-campaign-title { font-size: 38px; }
  .hero-campaign-offer strong { font-size: 90px; }
  .hero-campaign-fare { font-size: 28px; }
  .hero-campaign-tags > span { padding: 8px 16px; font-size: 18px; }
  .hero-campaign-tagline { font-size: 15px; }
  .hero-campaign-dates { padding: 17px; }
  .hero-campaign-dates dl > div { font-size: 16px; }
  .hero-campaign-dates dt { flex-basis: 46px; }
  .hero-campaign-dates dd { padding-left: 12px; }
}
@media (min-width: 768px) and (max-width: 900px) {
  .hero-campaign-active .top-searcher-box-title-wrapper { padding-top: 40px; }
}
@media (max-width: 767px) {
  .hero-campaign-active .top-searcher {
    background-image:
      linear-gradient(to right, rgba(0, 27, 76, .82) 0%, rgba(0, 32, 84, .66) 35%, rgba(0, 35, 88, .3) 52%, rgba(0, 35, 88, 0) 72%, rgba(0, 35, 88, 0) 100%),
      linear-gradient(to bottom, rgba(0, 25, 72, 0) 50%, #03205A 95%),
      url(/img/top/smart_bg3.jpg);
      background-position: center top;
  }
  .hero-campaign-active .top-searcher-box-title-wrapper { padding: 24px 0 22px; }
  .hero-campaign-active .hero-campaign { grid-template-columns: minmax(0, 1fr); gap: 20px; padding: 0; }
  .hero-campaign-eyebrow { gap: 12px; font-size: 12px; letter-spacing: .12em; }
  .hero-campaign-limited { padding: 4px 7px; font-size: 11px; }
  .hero-campaign-eyebrow::after { width: 38px; }
  .hero-campaign-title { max-width: 100%; margin-top: 10px !important; font-size: clamp(32px, 9.7vw, 40px); line-height: 1.3; }
  .hero-campaign-title > span { display: block; }
  .hero-campaign-title > span + span { margin-left: 0; }
  .hero-campaign-offer { position: relative; isolation: isolate; width: fit-content; max-width: 100%; gap: 12px; margin-top: 2px !important; margin-bottom: 12px !important; }
  .hero-campaign-offer::before {
    content: '';
    position: absolute;
    inset: 0 -14px 0 54%;
    z-index: -1;
    background: radial-gradient(ellipse closest-side at center, rgba(0, 26, 72, .78) 0%, rgba(0, 26, 72, .58) 50%, rgba(0, 26, 72, 0) 100%);
    pointer-events: none;
  }
  .hero-campaign-fare { font-size: 23px; }
  .hero-campaign-offer strong { font-size: 80px; }
  .hero-campaign-tags { gap: 9px; }
  .hero-campaign-tags > span { gap: 8px; padding: 8px 15px; font-size: 17px; }
  .hero-campaign-destinations { margin-top: 12px !important; font-size: 23px; }
  .hero-campaign-tagline { font-size: 12px; letter-spacing: 0; }
  .hero-campaign-dates { padding: 14px 15px 12px; border-radius: 12px; }
  .hero-campaign-dates h2 { padding-bottom: 10px; font-size: 17px; }
  .hero-campaign-dates h2 > i { font-size: 19px; }
  .hero-campaign-dates dl > div { padding: 9px 0; font-size: 15px; }
  .hero-campaign-dates dt { flex-basis: 48px; }
  .hero-campaign-dates dd { padding-left: 13px; }
  .hero-campaign-dates > p { font-size: 10px; }
  html[lang="en"] .hero-campaign-title { font-size: 29px; }
  html[lang="en"] .hero-campaign-tags > span { font-size: 13px; }
}
@media (max-width: 360px) {
  .hero-campaign-eyebrow { gap: 8px; letter-spacing: .06em; }
  .hero-campaign-eyebrow::after { display: none; }
  .hero-campaign-title { font-size: 30px; }
  .hero-campaign-offer strong { font-size: 64px; }
  .hero-campaign-tags > span { font-size: 15px; }
  .hero-campaign-dates dl > div { font-size: 13px; }
}

/* 首页活动通知：不改变原版标题、背景、导航和搜索逻辑。 */
.campaign-notice { display: none; }
.campaign-notice-active .campaign-notice {
  display: flex;
  position: absolute;
  top: 76px;
  left: 0;
  right: 0;
  width: calc(100% - 32px);
  max-width: 1120px;
  height: 44px;
  margin: 0 auto;
  padding: 0 16px;
  align-items: center;
  gap: 12px;
  border: 1px solid rgba(255, 255, 255, 0.85);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  color: #1F2937;
  font-size: 14px;
  font-weight: 500;
  line-height: 20px;
  box-shadow: 0 6px 24px rgba(3, 32, 90, 0.18), 0 1px 3px rgba(0, 0, 0, 0.06);
}
.campaign-notice .campaign-notice-icon {
  display: flex;
  flex: 0 0 auto;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: rgba(240, 103, 3, 0.1);
  color: #F06703;
  font-size: 13px;
  line-height: 1;
}
.campaign-notice .campaign-notice-icon::before { display: block; line-height: 1; }
.campaign-notice-viewport { flex: 1; min-width: 0; overflow: hidden; }
.campaign-notice-track { display: flex; width: max-content; }
.campaign-notice-message { display: block; flex: 0 0 auto; padding-right: 48px; white-space: nowrap; color: #1F2937; }
.campaign-notice-highlight { color: #F06703; font-weight: 800; margin: 0 2px; }
.campaign-notice:not(.is-scrolling) .campaign-notice-message[aria-hidden] { display: none; }
.campaign-notice.is-scrolling .campaign-notice-track { animation: campaign-notice-scroll 24s linear infinite; animation-delay: 3s; }
.campaign-notice:hover .campaign-notice-track, .campaign-notice:focus-within .campaign-notice-track { animation-play-state: paused; }
.campaign-notice-details {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
  padding: 5px 16px;
  border: none;
  border-radius: 999px;
  background: #F06703;
  color: #FFFFFF;
  font-family: inherit;
  font-size: 13px;
  font-weight: 700;
  line-height: 20px;
  white-space: nowrap;
  cursor: pointer;
  box-shadow: 0 2px 8px rgba(240, 103, 3, 0.35);
  transition: all 0.2s ease;
}
.campaign-notice-details > span[aria-hidden] { display: none; }
.campaign-notice-details:hover {
  background: #d95700;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(240, 103, 3, 0.45);
  text-decoration: none;
}
.campaign-notice-details:focus-visible, .campaign-notice-close:focus-visible { outline: 2px solid #2C61FE; outline-offset: 3px; }
html[lang="zh-CN"] .campaign-notice {
  max-width: 1120px;
  height: 42px;
  padding: 9px 16px;
  gap: 12px;
  border-color: rgba(230, 220, 207, .8);
  border-radius: 8px;
  background: rgba(250, 244, 234, .94);
  color: #363636;
  font-size: 15px;
  font-weight: 600;
}
html[lang="zh-CN"] .campaign-notice-icon { color: #ed4b10; font-size: 16px; }
html[lang="zh-CN"] .campaign-notice-highlight { color: #e83b0b; font-weight: 700; }
html[lang="zh-CN"] .campaign-notice-details { padding: 5px 12px; border-radius: 5px; background: #f06703; color: #fff; font-weight: 700; }
html[lang="zh-CN"] .campaign-notice-details:hover { background: #d95700; text-decoration: none; }
@keyframes campaign-notice-scroll { to { transform: translateX(-50%); } }
.campaign-notice-dialog:not([open]) { display: none; }
.campaign-notice-dialog {
  position: fixed;
  inset: 0;
  box-sizing: border-box;
  width: calc(100% - 32px);
  max-width: 460px;
  max-height: 85vh;
  margin: auto;
  padding: 26px 24px;
  overflow: auto;
  border: none;
  border-radius: 16px;
  background: #fff;
  color: #1F2937;
  font-family: inherit;
  box-shadow: 0 20px 60px rgba(3, 32, 90, .2);
}
.campaign-notice-dialog::backdrop {
  background: rgba(3, 32, 90, .45);
  backdrop-filter: blur(4px);
}
.campaign-notice-close {
  position: absolute;
  z-index: 2;
  top: 14px;
  right: 14px;
  width: 32px;
  height: 32px;
  padding: 0;
  border: 1px solid #E2E8F0;
  border-radius: 50%;
  background: #FFFFFF;
  color: #64748B;
  font-size: 20px;
  line-height: 30px;
  text-align: center;
  cursor: pointer;
  box-shadow: 0 2px 6px rgba(0, 0, 0, .05);
  transition: all .2s ease;
}
.campaign-notice-close:hover {
  background: #F1F5F9;
  color: #03205A;
  transform: scale(1.05);
}
.campaign-notice-dialog-header {
  margin: -26px -24px 22px;
  padding: 24px 24px 20px;
  border-bottom: 1px solid #E9EFF6;
  background: linear-gradient(145deg, #F2F7FD 0%, #FFFFFF 55%, #FFF8F2 100%);
  position: relative;
}
.campaign-notice-dialog-badge {
  display: inline-block;
  margin: 0 0 10px;
  padding: 3px 10px;
  border: 1px solid rgba(240, 103, 3, .25);
  border-radius: 999px;
  background: rgba(240, 103, 3, .08);
  color: #F06703;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .03em;
  line-height: 1.5;
}
.campaign-notice-dialog h2 {
  margin: 0 32px 14px 0;
  color: #03205A;
  font-size: 22px;
  font-weight: 800;
  line-height: 1.35;
  letter-spacing: -.01em;
}
.campaign-notice-dialog-offer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 14px;
}
.campaign-notice-dialog-discount {
  display: flex;
  align-items: baseline;
  gap: 6px;
  color: #F06703;
  white-space: nowrap;
}
.campaign-notice-dialog-discount > span {
  font-size: 12px;
  font-weight: 600;
  color: #64748B;
  background: #EDF2F7;
  padding: 2px 7px;
  border-radius: 4px;
}
.campaign-notice-dialog-discount strong {
  font-size: 40px;
  font-weight: 900;
  line-height: 1;
  letter-spacing: -1.5px;
  font-variant-numeric: lining-nums;
}
.campaign-notice-dialog-discount strong span {
  margin-left: 2px;
  font-size: 22px;
  letter-spacing: -.5px;
}
.campaign-notice-dialog-discount b {
  margin-left: 2px;
  font-size: 18px;
  font-weight: 800;
  letter-spacing: .02em;
}
.campaign-notice-dialog-deadline {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 11px;
  border: 1px solid #E2E8F0;
  border-radius: 999px;
  background: #FFFFFF;
  color: #475569;
  font-size: 12px;
  font-weight: 600;
  box-shadow: 0 1px 3px rgba(0, 0, 0, .04);
  white-space: nowrap;
}
.campaign-notice-dialog-deadline i {
  color: #F06703;
  font-size: 12px;
}
.campaign-notice-dialog-route {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  background: #F8FAFC;
  border: 1px solid #E8EEF5;
  border-radius: 8px;
  color: #475569;
  font-size: 13px;
  line-height: 1.5;
}
.campaign-notice-dialog-origin {
  display: inline-flex;
  align-items: center;
  padding: 2px 7px;
  border-radius: 4px;
  background: #EBF2FF;
  color: #2C61FE;
  font-size: 12px;
  font-weight: 700;
  white-space: nowrap;
}
.campaign-notice-dialog h3 {
  margin-bottom: 12px;
  color: #03205A;
  font-size: 15px;
  font-weight: 700;
}
.campaign-notice-date-list {
  margin: 0;
}
.campaign-notice-date-list > div {
  display: flex;
  gap: 16px;
  padding: 11px 0;
  border-top: 1px solid #E9EFF6;
  color: #1F2937;
  font-size: 14px;
  line-height: 1.6;
}
.campaign-notice-date-list dt {
  flex: 0 0 88px;
  color: #1F2937;
  font-weight: 600;
}
.campaign-notice-date-list dd {
  margin: 0;
  color: #475569;
  font-variant-numeric: tabular-nums;
}
.campaign-notice-dialog-note {
  margin-top: 16px;
  color: #667085;
  font-size: 12px;
  line-height: 1.6;
}
@media (min-width: 901px) {
  .campaign-notice-active .top-searcher-box .campaign-notice { width: 100%; max-width: none; }
  .campaign-notice-active .top-searcher-box-title-wrapper { padding-top: 146px; }
}
@media (max-width: 900px) {
  .campaign-notice-active .campaign-notice { position: relative; top: auto; margin: 16px auto 0; }
}
@media (max-width: 767px) {
  .campaign-notice-active .campaign-notice { width: 92%; height: 36px; margin-top: 12px; padding: 0 10px; gap: 8px; font-size: 12px; }
  .campaign-notice .campaign-notice-icon { width: 22px; height: 22px; font-size: 11px; }
  .campaign-notice-details { padding: 3px 10px; font-size: 11px; }
  html[lang="zh-CN"] .campaign-notice { height: 36px; padding: 0 10px; gap: 8px; font-size: 12px; }
  html[lang="zh-CN"] .campaign-notice-icon { width: 22px; height: 22px; font-size: 11px; }
  html[lang="zh-CN"] .campaign-notice-details { padding: 3px 10px; font-size: 11px; }
  .campaign-notice.is-scrolling .campaign-notice-track { animation-delay: 0s; }
  .campaign-notice-dialog { padding: 20px 16px; }
  .campaign-notice-dialog-header { margin: -20px -16px 16px; padding: 18px 16px 14px; }
  .campaign-notice-dialog-discount strong { font-size: 34px; }
  .campaign-notice-dialog-discount strong span { font-size: 19px; }
  .campaign-notice-dialog-discount b { font-size: 15px; }
  .campaign-notice-dialog h2 { font-size: 19px; margin-right: 28px; }
  .campaign-notice-date-list > div { gap: 10px; padding: 9px 0; font-size: 13px; }
  .campaign-notice-date-list dt { flex-basis: 72px; }
}
@media (prefers-reduced-motion: reduce) {
  .campaign-notice.is-scrolling .campaign-notice-track { animation: none; }
  .campaign-notice-viewport { overflow-x: auto; }
  .campaign-notice-message[aria-hidden] { display: none; }
}