/* ===== Tablet ===== */
@media (max-width: 1200px) {
  .site-title { font-size: 18px; white-space: normal; }
  .site-subtitle { font-size: 11px; }
  .nav-link { padding: 8px 16px; font-size: 16px; }
  .section-title, .schedule-title, .download-title { font-size: 36px; }
  .schedule-panels { grid-template-columns: 1fr; }
  .schedule-panel--right { min-height: 300px; }
  .schedule-panel--right img { min-height: 300px; }
  .quick-actions { grid-template-columns: repeat(2, 1fr); }
  .download-grid { grid-template-columns: repeat(2, 1fr); }
  .brand-exhibitors__grid { grid-template-columns: repeat(4, 1fr); }
  .brand-exhibitors__cell:nth-child(6n) { border-right: 1px solid #e2e8f0; }
  .brand-exhibitors__cell:nth-child(4n) { border-right: none; }
  .brand-exhibitors__cell:nth-last-child(-n + 6) { border-bottom: 1px solid #e2e8f0; }
  .brand-exhibitors__cell:nth-last-child(-n + 4) { border-bottom: none; }
  .footer-orgs { grid-template-columns: repeat(2, 1fr); }
  .footer-contact { flex-direction: column; gap: 24px; }
  .news-main { grid-template-columns: 1fr; }
  .news-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .news-item { border-top: none; border: 1px solid #f1f5f9; padding: 16px; border-radius: 8px; }
  .news-grid { grid-template-columns: repeat(2, 1fr); }
  .news-center-grid { grid-template-columns: repeat(2, 1fr); }
  .news-detail-layout { grid-template-columns: 1fr; }
  .news-center-feature__card { grid-template-columns: 1fr; }
  .news-center-feature__media { min-height: 220px; }
  .page-hero__title { font-size: 36px; }
  .contact-overview { grid-template-columns: repeat(2, 1fr); }
  .contact-panels { grid-template-columns: 1fr; }
  .contact-map-block { grid-template-columns: 1fr; }
  .service-intro { grid-template-columns: 1fr; }
  .service-hub { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .service-hub__item { min-height: 76px; padding: 16px 20px; }
  .service-ticket-layout {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .service-ticket-qr img {
    width: 108px;
    height: 108px;
  }
  .service-transport__head { flex-direction: column; align-items: flex-start; }
  .service-transport-tab { padding: 12px 8px; font-size: 14px; }
  .service-transport-panel { padding: 20px 16px 24px; }
  .service-rich-text { font-size: 15px; }
  .service-rich-text table { display: block; overflow-x: auto; }
  .service-detail-grid { grid-template-columns: 1fr; }
  .service-detail-grid--2col { grid-template-columns: 1fr; }
  .service-subscribe { flex-direction: column; align-items: stretch; }
  .service-subscribe__form { flex-direction: column; }
  .service-subscribe__form input { width: 100%; }
  .services-tabs { overflow: hidden; }
  .services-tabs .news-tab { flex: 1; padding: 14px 8px; font-size: 14px; }
  .overview-tabs { overflow: hidden; }
  .overview-tabs .news-tab { flex: 1; padding: 14px 8px; font-size: 14px; }
  .overview-stats { grid-template-columns: repeat(2, 1fr); }
  .overview-orgs { grid-template-columns: repeat(2, 1fr); }
  .overview-hall-intro { grid-template-columns: 1fr; }
  .overview-hall-stats { grid-template-columns: repeat(4, 1fr); }
  .overview-hall-grid { grid-template-columns: repeat(2, 1fr); }
  .overview-facts,
  .overview-points,
  .overview-invite,
  .overview-audience { grid-template-columns: 1fr; }
  .overview-transport { grid-template-columns: 1fr; }
  .hero { margin-bottom: 24px; }
  .hero-cards { flex-wrap: wrap; transform: none; }
  .portal-card { max-width: 100%; flex: 1 1 calc(50% - 12px); }
  .portal-card:last-child { flex: 1 1 100%; }
}

/* ===== Mobile ===== */
@media (max-width: 768px) {
  :root { --header-height: 70px; }

  .header-top-inner { height: 70px; }
  .logo { width: 80px; height: 30px; }
  .logo-group { flex: 1; min-width: 0; gap: 8px; }
  .logo-text { min-width: 0; }
  .site-title {
    font-size: 13px;
    white-space: normal;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }
  .header-countdown { gap: 4px; }
  .header-countdown__days { font-size: 20px; }
  .site-subtitle { display: none; }
  .lang-switch { display: none; }
  .header-top-actions {
    flex-direction: column;
    align-items: flex-end;
    gap: 8px;
  }
  .header-countdown {
    margin-left: 0;
    padding-left: 0;
    border-left: none;
  }
  .header-countdown__days { font-size: 24px; }
  .header-countdown__label,
  .header-countdown__unit { font-size: 12px; }
  .mobile-menu-btn { display: flex; }

  .main-nav {
    position: fixed !important;
    top: 70px; left: 0; right: 0;
    background: var(--color-primary);
    transform: translateY(-120%);
    opacity: 0;
    visibility: hidden;
    transition: transform var(--transition), opacity var(--transition), visibility var(--transition);
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
  }
  .main-nav.open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }
  .nav-list { flex-direction: column; padding: 16px 0; align-items: stretch; }
  .nav-item { width: 100%; }
  .nav-link {
    padding: 14px 20px;
    font-size: 16px;
    width: 100%;
    justify-content: flex-start;
    border-bottom: 1px solid rgba(255,255,255,0.1);
  }
  .nav-item:first-child .nav-link { font-size: 16px; }
  .nav-link.active::after { display: none; }
  .nav-link.active { background: rgba(13,158,227,0.15); }
  .nav-link--dropdown::before {
    position: static;
    margin-left: auto;
    margin-top: 0;
  }
  .nav-dropdown {
    position: static;
    transform: none;
    min-width: 0;
    background: rgba(0, 0, 0, 0.15);
    border-radius: 0;
    box-shadow: none;
    padding: 0;
    max-height: 0;
    overflow: hidden;
    opacity: 1;
    visibility: visible;
    transition: max-height var(--transition);
  }
  .nav-dropdown::before { display: none; }
  .nav-item--has-dropdown.open .nav-dropdown { max-height: 240px; }
  .nav-item--has-dropdown:hover .nav-dropdown { max-height: 0; }
  .nav-item--has-dropdown.open:hover .nav-dropdown { max-height: 240px; }
  .nav-dropdown__link {
    padding: 12px 20px 12px 36px;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.9);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  }
  .nav-dropdown__link:hover,
  .nav-dropdown__link.active {
    background: rgba(13, 158, 227, 0.15);
    color: #fff;
  }

  /* Banner 与卡片分离：上方纯 Banner，下方紧凑卡片 */
  .hero {
    display: flex;
    flex-direction: column;
    min-height: auto;
    width: 100%;
    max-width: 100%;
    margin-left: 0;
    margin-top: 70px;
    margin-bottom: 0;
    background: #fff;
  }
  .hero-bg {
    position: relative;
    flex: none;
    width: 100%;
    height: auto;
    aspect-ratio: 1983 / 793;
    overflow: hidden;
  }
  .hero-slider { position: absolute; inset: 0; }
  .hero-slide {
    position: absolute;
    inset: 0;
    opacity: 0;
  }
  .hero-slide.active { opacity: 1; }
  .hero-bg-img {
    width: 100%;
    height: 100%;
    position: absolute;
    left: 0;
    top: 0;
    object-fit: cover;
    object-position: top center;
  }
  .hero-overlay {
    background: rgba(0, 0, 0, 0.12);
  }
  .hero-dots { bottom: calc(var(--hero-card-height) + 12px); }
  .banner_btns {
    left: 0;
    right: 0;
    bottom: 0;
    transform: none;
    width: 100%;
    max-width: 100%;
    flex-direction: row;
    height: 50px;
  }
  .banner_btns a {
    width: auto;
    flex: 1 1 0;
    height: 50px;
    line-height: 50px;
    font-size: 16px;
  }
  .banner_btns a.btn1,
  .banner_btns a.btn3 {
    border-radius: 0 30px 0 30px;
  }
  .banner_btns a.btn2 {
    border-radius: 30px 0 30px 0;
  }
  .banner_btns a > div {
    height: 50px;
    line-height: 50px;
    font-size: 16px;
    padding: 0;
  }
  .banner_btns .ico-zsrk,
  .banner_btns .yuan {
    height: 16px;
    margin: 0 10px;
  }
  .banner_btns .yuan { display: none; }
  .hero-portals {
    left: 50%;
    right: auto;
    bottom: 0;
    transform: translateX(-50%);
    width: calc(100% - 24px);
    max-width: 850px;
    grid-template-columns: 1fr;
    gap: 0;
  }
  .hero-portal {
    height: var(--hero-card-height);
    min-height: var(--hero-card-height);
    max-height: var(--hero-card-height);
    padding: 0 16px;
    justify-content: flex-start;
  }
  .hero-portal__arrow {
    right: 14px;
  }
  .hero-portal--exhibitor,
  .hero-portal--media {
    border-radius: 0 28px 0 28px;
  }
  .hero-portal--visitor {
    border-radius: 28px 0 28px 0;
  }
  .hero-portal__title { font-size: 17px; }
  .hero-portal__sub { font-size: 10px; }
  .hero-portal__icon { width: 36px; height: 36px; }
  .hero-portal__arrow { width: 28px; height: 28px; }
  .hero-cards {
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    transform: none;
    width: 100%;
    max-width: none;
    padding: 0;
    flex-direction: column;
    gap: 0;
    overflow: visible;
    scroll-snap-type: none;
  }
  .hero-cards--seg {
    flex-direction: column;
    gap: 8px;
    filter: none;
    margin-bottom: 0;
  }
  .hero + .expo-intro,
  .hero + .news-section {
    padding-top: 32px;
  }
  .expo-intro__main {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .expo-intro__visual {
    height: 220px;
  }
  .expo-intro__visual img {
    position: absolute;
    max-width: none;
    max-height: none;
  }
  .expo-intro__pills {
    flex-wrap: wrap;
    justify-content: center;
    gap: 12px;
  }
  .expo-pill {
    width: 46%;
    font-size: 16px;
    line-height: 48px;
  }
  .portal-seg {
    margin-left: 0;
    border-radius: 12px !important;
    clip-path: none !important;
    padding: 14px 16px !important;
    min-height: 56px;
  }
  .portal-seg__title { font-size: 18px; }
  .portal-seg__icon { width: 36px; height: 36px; }
  .portal-card {
    flex: none;
    width: 100%;
    max-width: none;
    min-height: auto;
    padding: 12px 14px;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
  }
  .portal-card:hover { transform: none; }
  .portal-card__glow { display: none; }
  .portal-card__top { align-items: center; gap: 8px; }
  .portal-card__left { gap: 10px; min-width: 0; flex: 1; }
  .portal-card__left > div { min-width: 0; }
  .portal-card__icon {
    width: 32px;
    height: 32px;
    border-radius: 10px;
  }
  .portal-card__icon img { width: 16px; height: auto; }
  .portal-card__title { font-size: 17px; line-height: 24px; letter-spacing: 0; }
  .portal-card__desc {
    font-size: 12px;
    line-height: 17px;
    font-weight: 500;
    display: -webkit-box;
    -webkit-line-clamp: 1;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }
  .portal-card__badge { font-size: 11px; padding: 3px 8px; flex-shrink: 0; }
  .portal-card__bottom {
    padding-top: 8px;
    margin-top: 8px;
  }
  .portal-card__hint { font-size: 11px; font-weight: 600; }
  .portal-card__arrow { width: 24px; height: 24px; flex-shrink: 0; }
  .portal-card__arrow img { width: 10px; height: 10px; }
  .news-section { padding-top: 40px; }

  .floating-dock {
    width: 56px;
    top: auto;
    bottom: 20px;
    transform: none;
    border-radius: 28px 0 0 28px;
  }
  .dock-label { font-size: 10px; }
  .dock-count { font-size: 18px; }
  .dock-countdown .dock-label { font-size: 11px; }
  .dock-icon { width: 18px !important; height: 18px !important; }
  .dock-tooltip { display: none; }

  .section { padding: 60px 0; }
  .section-header { flex-direction: column; align-items: flex-start; gap: 16px; }
  .section-title, .schedule-title, .download-title { font-size: 28px; line-height: 1.3; }

  .news-list { grid-template-columns: 1fr; }
  .news-grid { grid-template-columns: 1fr; }
  .news-center-grid { grid-template-columns: 1fr; }
  .news-tabs { overflow-x: auto; -webkit-overflow-scrolling: touch; }
  .services-tabs { overflow: hidden; }
  .services-tabs .news-tab { flex: 1; padding: 14px 8px; font-size: 14px; }
  .overview-tabs { overflow: hidden; }
  .overview-tabs .news-tab { flex: 1; padding: 14px 8px; font-size: 14px; }
  .news-tab { padding: 14px 24px; font-size: 16px; white-space: nowrap; flex-shrink: 0; }
  .news-center-feature__body { padding: 20px; }
  .news-center-feature__body h2 { font-size: 20px; }
  .news-detail-layout { grid-template-columns: 1fr; gap: 40px; }
  .news-detail__title { font-size: 24px; }
  .news-detail__adjacent { grid-template-columns: 1fr; }
  .news-detail__adjacent-link--next { text-align: left; }
  .page-hero { padding: 40px 0 48px; margin-top: var(--header-height); }
  .page-hero__title { font-size: 28px; }
  .news-feature { min-height: 280px; }
  .contact-overview { grid-template-columns: 1fr; }
  .contact-form__row { grid-template-columns: 1fr; }
  .register-layout { grid-template-columns: 1fr; }
  .register-aside { position: static; }
  .contact-panel { padding: 24px 20px; }
  .contact-panel__title { font-size: 24px; }
  .contact-map-placeholder { min-height: 280px; }
  .contact-map-placeholder > img { min-height: 280px; }
  .service-intro__title { font-size: 24px; }
  .service-hub { grid-template-columns: 1fr; }
  .service-subscribe { padding: 24px 20px; margin-top: 48px; }
  .overview-stats { grid-template-columns: 1fr; }
  .overview-orgs { grid-template-columns: 1fr; }
  .overview-hall-grid { grid-template-columns: 1fr; }
  .overview-facts,
  .overview-points,
  .overview-invite,
  .overview-audience { grid-template-columns: 1fr; }
  .overview-hall-stats { grid-template-columns: repeat(2, 1fr); }
  .overview-block__title { font-size: 24px; }
  .overview-event { flex-direction: column; }
  .overview-event__date {
    width: 100%;
    flex-direction: row;
    gap: 8px;
    padding: 12px 16px;
  }
  .overview-event__body { padding: 16px 20px 20px; }
  .overview-transport__map .contact-map-placeholder,
  .overview-transport__map .contact-map-placeholder > img { min-height: 280px; }

  .schedule-header { flex-direction: column; align-items: flex-start; gap: 16px; }
  .schedule-date { font-size: 14px; }
  .schedule-timeline { grid-template-columns: 1fr; }
  .venue-info { flex-direction: column; align-items: flex-start; }
  .overview-venue--address {
    flex-direction: column;
    align-items: flex-start;
  }
  .overview-venue--address .venue-link {
    align-self: flex-start;
    margin-top: 4px;
  }
  .qr-row { grid-template-columns: 1fr; }
  .quick-actions { grid-template-columns: 1fr; }

  .download-grid { grid-template-columns: 1fr; }
  .download-card { min-height: auto; }
  .brand-exhibitors { padding-top: 40px; padding-bottom: 48px; }
  .brand-exhibitors__title { font-size: 24px; margin-bottom: 24px; }
  .brand-exhibitors__tabs { gap: 8px; justify-content: flex-start; overflow-x: auto; flex-wrap: nowrap; padding-bottom: 4px; -webkit-overflow-scrolling: touch; }
  .brand-exhibitors__tab { font-size: 14px; padding: 8px 14px; flex-shrink: 0; }
  .brand-exhibitors__grid { grid-template-columns: repeat(2, 1fr); }
  .brand-exhibitors__cell:nth-child(4n),
  .brand-exhibitors__cell:nth-child(6n) { border-right: 1px solid #e2e8f0; }
  .brand-exhibitors__cell:nth-child(2n) { border-right: none; }
  .brand-exhibitors__cell:nth-last-child(-n + 4),
  .brand-exhibitors__cell:nth-last-child(-n + 6) { border-bottom: 1px solid #e2e8f0; }
  .brand-exhibitors__cell:nth-last-child(-n + 2) { border-bottom: none; }
  .brand-exhibitors__cell { min-height: 88px; }
  .zhgk-intro { grid-template-columns: 1fr; gap: 24px; }
  .zhgk-axis-panel {
    padding: 36px 0 40px;
    margin-bottom: 40px;
  }
  .zhgk-axis-panel__inner { padding: 0 12px; }
  .zhgk-intro__media img { min-height: 200px; }
  .zhgk-axis::before { display: none; }
  .zhgk-axis-row {
    grid-template-columns: 1fr;
    gap: 24px;
    margin-bottom: 48px;
  }
  .zhgk-axis-row::after { display: none; }
  .zhgk-axis-row--scope .zhgk-axis-copy { order: 1; }
  .zhgk-axis-row--scope .zhgk-axis-media { order: 2; }
  .zhgk-axis-copy--end,
  .zhgk-axis-copy--end .zhgk-axis-heading { text-align: left; }
  .zhgk-axis-copy--end .zhgk-axis-list li { padding-right: 0; padding-left: 14px; }
  .zhgk-axis-copy--end .zhgk-axis-list li::before { right: auto; left: 0; }
  .zhgk-info__lead { padding: 20px 16px; }
  .zhgk-section__title { font-size: 19px; }
  .zhgk-table th { width: 32%; padding: 12px; font-size: 14px; }
  .zhgk-table td { padding: 12px; font-size: 14px; }

  .footer-orgs { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
  .footer-copy { text-align: left; }
}

@media (max-width: 480px) {
  .hero-cards { padding: 10px 12px 14px; gap: 8px; }
  .portal-card { padding: 10px 12px; border-radius: 10px; }
  .portal-card__title { font-size: 15px; line-height: 20px; }
  .portal-card__desc { font-size: 10px; }
  .portal-card__bottom { padding-top: 6px; margin-top: 6px; }
  .schedule-panel--left { padding: 20px; }
  .quick-action { padding: 16px; }
  .quick-action strong { font-size: 16px; }
}