/* ============================================================
   mobile.css — 全站移动端适配增强(最后加载,覆盖所有页面)
   断点:≤768px(手机) · ≤1024px(平板)
   ============================================================ */

/* ============================================================
   平板(≤1024px)
   ============================================================ */
@media (max-width: 1024px) {
  :root { --header-h: 64px; --container: 100%; }
  .container { padding-inline: 20px; }

  /* 按钮:触屏最小点击区 */
  .btn { min-height: 44px; padding-inline: 22px; }

  /* 表单:触摸友好 */
  .ct-input, .ct-selectwrap select { min-height: 48px; font-size: 16px; }
  .ct-textarea { font-size: 16px; }

  /* 卡片 hover 效果关闭(触屏无 hover) */
  .bm-card__img, .ae-brand__card, .news-card { transition: none; }
  .bm-card:hover .bm-card__img { transform: none; }
  .ae-brand:hover .ae-brand__card { transform: none; }
}

/* ============================================================
   手机(≤768px)
   ============================================================ */
@media (max-width: 768px) {
  :root { --header-h: 56px; }

  .container { padding-inline: 16px; }
  .main-nav{
    padding: 30px 26px 32px;
  }

  /* ---------- 首页 hero ---------- */
  .hero { min-height: auto; padding-top: var(--header-h); }
  .hero-content { padding-top: 20px; padding-bottom: 30px; }
  .hero-title { font-size: clamp(2.2rem, 10vw, 3.5rem); }
  .hero-sub { font-size: 0.85rem; margin-top: 12px; }
  .hero-tag { font-size: 0.8rem; }
  .btn-explore { margin-top: 24px; }

  .hero-stats { padding: 20px 0; }
  .stats-grid { grid-template-columns: 1fr 1fr; gap: 20px 12px; }
  .stat-num { font-size: clamp(1.3rem, 5vw, 1.8rem); }
  .stat-label { font-size: 0.62rem; }

  /* ---------- bento 业务格 ---------- */
  .bento-grid {
    grid-template-columns: 1fr;
    grid-auto-rows: auto;
    gap: 12px;
  }
  .cell-banner {
    grid-column: auto; grid-row: auto;
    min-height: 120px; padding: 20px;
  }
  .banner-title { font-size: 1.3rem; }
  .cell-media { min-height: 200px; }
  .cell-title { font-size: 1rem; }
  .cell-auto { min-height: 200px; }

  /* ---------- 地图 ---------- */
  .map-wrap { margin: 4px auto 16px; }

  /* ---------- 卡片轮播 ---------- */
  .network-card { flex: 0 0 82vw; height: 260px; }

  /* ---------- 合作伙伴 ---------- */
  .partner { padding: 56px 0; }
  .partner-overlay {
    padding: 24px 20px;
    border-radius: var(--radius);
  }
  .partner-title { font-size: 1.1rem; }
  .partner-features { grid-template-columns: repeat(4, 1fr); gap: 12px 8px; margin-top: 20px; }
  .pf-ico img { width: 40px; height: 40px; }
  .partner-features strong { font-size: 0.62rem; }

  /* ---------- 新闻 ---------- */
  .news { padding: 56px 0; }
  .news-head { margin-bottom: 24px; gap: 12px; }
  .news-grid { grid-template-columns: 1fr 1fr; gap: 16px; }
  .news-img { aspect-ratio: 16/9; }
  .news-title { font-size: 1rem; }
  .news-meta { font-size: 0.7rem; }

  /* ---------- 页脚 ---------- */
  .site-footer { padding-top: 36px; }
  .footer-top {
    align-items: center; gap: 16px;
    padding-bottom: 24px;
  }
  .footer-social { gap: 10px; }
  .social { width: 38px; height: 38px; }
  .social svg { width: 15px; height: 15px; }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 28px 16px;
    padding: 28px 0;
  }
  .footer-intro { grid-column: 1 / -1; }
  .footer-slogan { font-size: 0.85rem; }
  .footer-contact { font-size: 0.8rem; }
  .footer-col h4 { font-size: 0.88rem; margin-bottom: 12px; }
  .footer-col ul { gap: 8px; font-size: 0.82rem; }
  .footer-bottom { padding: 16px 0; font-size: 0.75rem; }
  .footer-bottom .container { flex-direction: column; gap: 8px; text-align: center; }

  /* ---------- 业务页 hero(business.css 共享) ---------- */
  .bp-hero { min-height: 155px; padding-bottom: 30px; }
  .bp-hero__copy { padding-top: 20px; }
  .bp-hero__title { font-size: clamp(2rem, 8vw, 3rem); letter-spacing: 0.06em; }
  .bp-hero__sub { font-size: 0.95rem; margin-top: 12px; }
  .bp-hero__tag { font-size: 0.82rem; margin-top: 8px; }
  .bp-hero .btn-explore { margin-top: 22px; }

  /* ---------- development-history 专属(完全覆盖桌面布局) ---------- */
  .dh-hero { min-height: 155px; }
  .dh-hero .bp-hero__copy { padding-top: calc(var(--header-h) + 16px); padding-bottom: 20px; }
  .dh-line--lg { font-size: clamp(2rem, 8vw, 3.2rem); margin-bottom: 0.6rem; }
  .dh-line--sm { font-size: clamp(1.3rem, 5.5vw, 2.2rem); }
  .dh-timeline-section { padding: 40px 0 64px; }
  .dh-head {
    flex-direction: column !important;
    align-items: flex-start !important;
    gap: 12px; margin-bottom: 36px;
  }
  .dh-head__title { font-size: 1.5rem; }
  .dh-head__arrow { width: 48px; height: 48px; }

  /* 时间线 → Grid 单列(每元素独占一行,彻底解决 flex 重叠) */
  .dh-route { display: block !important; overflow: visible; }
  .dh-rail, .dh-rail--1, .dh-rail--2 {
    display: grid !important;
    grid-template-columns: 1fr !important;
    max-width: none !important;
    width: 100% !important;
    gap: 0 !important;
  }
  .dh-stage {
    display: block !important;
    width: 100% !important;
    flex: none !important;
    min-width: 0 !important;
    position: static !important;
    padding: 12px 0 !important;
    box-sizing: border-box !important;
    grid-row: auto !important;
    clear: both !important;
    float: none !important;
  }

  /* 节点 → 隐藏原元素,用 stage 的伪元素画分隔线 */
  .dh-node { display: none !important; }
  .dh-stage:not(:last-child)::after {
    content: "";
    display: block;
    width: 100%;
    height: 2px;
    background: #d9dee6;
    margin-top: 20px;
    position: relative;
  }
  .dh-stage:not(:last-child)::before {
    content: "📅";
    display: block;
    text-align: center;
    font-size: 18px;
    line-height: 1;
    margin-top: 8px;
    position: relative;
    z-index: 1;
    background: var(--surface-light);
    width: 36px;
    height: 36px;
    border-radius: 50%;
    margin-inline: auto;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-top: -19px;
    box-shadow: 0 0 0 4px var(--surface-light);
  }
  .dh-node__cal {
    position: relative; z-index: 1;
    width: 32px; height: 32px;
    display: flex; align-items: center; justify-content: center;
    background: var(--surface-light);
    border-radius: 50%;
    padding: 7px;
  }
  .dh-node__cal svg { width: 100%; height: 100%; color: var(--orange-700); }
  .dh-node__line {
    position: absolute;
    top: 50%; left: 0; right: 0;
    width: auto; height: 2px;
    margin: 0;
    transform: translateY(-50%);
    background: #d9dee6;
  }
  .dh-node__dot { display: none !important; }
  .dh-fold { height: 0 !important; overflow: hidden !important; display: none !important; }
  .dh-fold__line, .dh-fold__cal { display: none !important; }

  /* 阶段卡片 → 图左文右 */
  .dh-stage__card {
    display: flex !important;
    flex-direction: row !important;
    gap: 16px;
    align-items: flex-start !important;
    width: 100%;
  }
  .dh-stage__img {
    width: 90px !important;
    height: 90px !important;
    aspect-ratio: 1 !important;
    object-fit: cover;
    flex-shrink: 0;
    border-radius: var(--radius);
    box-shadow: 0 6px 18px rgba(16,24,40,.12);
  }
  .dh-stage__body { padding-top: 0; flex: 1; min-width: 0; }
  .dh-stage__year { font-size: 0.95rem; margin-bottom: 6px; }
  .dh-stage__text { font-size: 0.82rem; line-height: 1.6; }

  /* ---------- 业务页 intro(business.css 共享) ---------- */
  .bp-intro { padding: 56px 0 48px; }
  .bp-intro__grid { grid-template-columns: 1fr; gap: 40px; }
  .bp-intro__text .bp-h2 { font-size: 1.6rem; margin-bottom: 20px; }
  .bp-body { font-size: 0.95rem; }
  .bp-caps { grid-template-columns: repeat(2, 1fr); gap: 16px 12px; margin-top: 32px; }
  .bp-cap__ico { width: 42px; height: 42px; }
  .bp-cap__label { font-size: 0.78rem; }
  .bp-intro__img { aspect-ratio: 4/3; }

  /* ---------- auto-export 专属 ---------- */
  .ae-showcase__head { margin-bottom: 32px; }
  .ae-showcase { padding: 20px 0 64px; }
  .ae-showcase__img { height: 220px; }
  .ae-brands { padding: 32px 0 64px; }
  .ae-brands__grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .ae-brand__name { font-size: 0.82rem; margin-top: 14px; }
  .ae-models { padding: 64px 0; }
  .ae-models__tags { gap: 8px; margin-top: 28px; }
  .ae-models__tags li { font-size: 0.75rem; padding: 7px 12px; }
  .ae-region { padding: 64px 0 40px; }
  .ae-region__head { margin-bottom: 32px; }
  .ae-map { aspect-ratio: 1135 / 647; height: auto; }
  .ae-marker__label { display: none; }
  .ae-map__legend { display: flex; margin-top: 16px; }

  /* ---------- building-materials 专属 ---------- */
  .bm-stock__frame { padding: 0 16px; }
  .bm-products { padding: 56px 0 24px; }
  .bm-products__head { margin-bottom: 32px; }
  .bm-products__grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .bm-card__name { font-size: 0.78rem; margin-top: 12px; }
  .bm-viewmore, .ae-viewmore { padding: 32px 0 72px; }

  /* ---------- after-sales 专属 ---------- */
  .as-services { padding: 56px 0 64px; }
  .as-services__head { margin-bottom: 36px; }
  .as-services__grid { grid-template-columns: repeat(2, 1fr); gap: 36px 16px; }
  .as-svc__ring { width: 120px; }
  .as-svc__name { font-size: 0.85rem; }
  .as-region { padding: 64px 0 72px; }
  .as-region__head { margin-bottom: 32px; }
  .as-region__grid { grid-template-columns: 1fr; max-width: 400px; margin-inline: auto; }
  .as-loc__body { padding: 20px 20px 24px; }
  .as-loc__city { font-size: 1.2rem; }
  .as-loc__desc { font-size: 0.85rem; }

  /* ---------- global-logistics 专属 ---------- */
  .gl-services { padding: 56px 0 24px; }
  .gl-services__head { margin-bottom: 32px; }
  .gl-services__grid { grid-template-columns: repeat(2, 1fr); gap: 32px 16px; }
  .gl-svc__ico { width: 90px; height: 90px; }
  .gl-svc__name { font-size: 0.85rem; }
  .gl-port__frame { padding: 0 16px; }

  /* ---------- about-us 专属 ---------- */
  .au-gps { padding: 56px 0; }
  .au-gps__title { font-size: 1.5rem; }
  .au-gps__text { font-size: 0.9rem; margin-bottom: 36px; }
  .au-gps__cards { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .au-gps__wide { margin-top: 48px; padding: 0 16px; }
  .au-gps__split {
    grid-template-columns: 1fr;
    gap: 32px; margin-top: 48px; padding: 0 16px;
  }
  .au-gps__feature-img { padding: 28px 24px; min-height: 300px; }
  .au-gps__feature-list p { line-height: 2.5; }

  /* ---------- news 专属 ---------- */
  .nw-hero { min-height: 35vh; }
  .nw-hero__title { font-size: clamp(2.5rem, 14vw, 5rem); }
  .nw-listing { padding: 0px 0 72px; }
  .nw-tabs { margin-bottom: 32px; gap: 0; }
  .nw-tab { padding: 12px 18px; font-size: 0.88rem; }
  .nw-row {
    grid-template-columns: 1fr;
    height: auto;
  }
  .nw-row__body { padding: 24px 20px; }
  .nw-row__title { font-size: 1.05rem; -webkit-line-clamp: 3; }
  .nw-row__excerpt { font-size: 0.88rem; -webkit-line-clamp: 3; }
  .nw-row__more { padding: 9px 20px; font-size: 0.72rem; }
  .nw-row__media { height: 220px; min-height: 0; }
  .nw-pagination { gap: 6px; margin-top: 40px; }
  .nw-page { min-width: 38px; height: 38px; font-size: 0.85rem; }

  /* ---------- news-detail 专属 ---------- */
  .nd-body { padding: 0 16px 72px; }
  .nd-back { margin-bottom: 28px; padding-top: 24px; font-size: 0.82rem; }
  .nd-title { font-size: 1.4rem; margin-bottom: 28px; }
  .nd-meta { gap: 12px; margin-bottom: 18px; }
  .nd-meta__cat { font-size: 0.68rem; padding: 3px 10px; }
  .nd-article p { font-size: 0.95rem; line-height: 1.85; margin-bottom: 20px; }
  .nd-figure { margin: 4px 0 24px; }
  .nd-figure img { border-radius: var(--radius); }
  .nd-nav { grid-template-columns: 1fr; gap: 12px; margin-top: 48px; }
  .nd-nav__item { padding: 14px 18px; }
  .nd-nav__title { font-size: 0.88rem; }

  /* ---------- contact 专属 ---------- */
  .ct-hero { min-height: 40vh; }
  .ct-hero__title { font-size: clamp(2rem, 8vw, 3.2rem); }
  .ct-form-section { padding: 48px 0 64px; }
  .ct-form__grid { grid-template-columns: 1fr; gap: 18px; }
  .ct-label { font-size: 0.82rem; margin-bottom: 6px; }
  .ct-input, .ct-selectwrap select {
    padding: 12px 14px;
    font-size: 16px;
    min-height: 48px;
  }
  .ct-textarea { min-height: 110px; }
  .ct-submit {
    width: 100%; justify-content: center;
    padding: 15px 28px; margin-top: 24px;
  }
  .ct-map { padding: 36px 0 48px; }
  .ct-map__frame { height: 300px; }
  .ct-map__info { padding: 24px 20px; }
  .ct-map__info-title { font-size: 1.3rem; margin-bottom: 20px; }
  .ct-map__item { margin-bottom: 14px; }
  .ct-map__item dt { font-size: 0.68rem; }
  .ct-map__item dd { font-size: 0.9rem; }
  .ct-map__item img { width: 18px; height: 18px; }

  /* ---------- global-presence 专属 ---------- */
  .gp-main { padding-top: var(--header-h); }
  .au-slogan-layer{
    padding: 12px 16px;
  }
  .au-inner {
    margin: 60px auto 0;
    padding: 10px 16px 0;
  }
}

/* ============================================================
   小屏手机(≤480px)
   ============================================================ */
@media (max-width: 480px) {
  .container { padding-inline: 12px; }

  .hero-title { letter-spacing: 0.2em; }
  .hero-tag { display: none; }
  .stats-grid { grid-template-columns: 1fr 1fr; gap: 16px 8px; }
  .stat-num { font-size: 1.2rem; }

  .bento-grid { gap: 10px; }
  .cell-banner { padding: 16px; }
  .banner-title { font-size: 1.1rem; }
  .cell-media { min-height: 170px; }

  .partner-features { grid-template-columns: repeat(2, 1fr); gap: 10px; }
  .pf-ico img { width: 36px; height: 36px; }

  .footer-grid { grid-template-columns: 1fr 1fr; gap: 24px; }

  .bp-hero__title { letter-spacing: 0.04em; }
  .bp-caps { grid-template-columns: 1fr 1fr; gap: 12px 8px; }

  .ae-brands__grid { grid-template-columns:  repeat(2, 1fr); }
  .bm-products__grid { grid-template-columns:  repeat(2, 1fr); }
  .as-services__grid { grid-template-columns:  repeat(2, 1fr); margin-inline: auto; }
  .gl-services__grid { grid-template-columns:  repeat(2, 1fr); margin-inline: auto; }

  .nw-tabs { flex-direction: column; border-bottom: none; }
  .nw-tab { border-bottom: 1px solid var(--line); }
  .nw-tab.is-active::after { display: none; }
  .nw-tab.is-active { color: var(--orange-700); font-weight: 700; }
}

/* ============================================================
   触屏优化(指针粗 = 触屏设备)
   ============================================================ */
@media (pointer: coarse) {
  /* 去掉 hover 态(触屏无 hover,避免粘滞) */
  .btn:hover { transform: none; }
  .social:hover { transform: none; background: transparent; }
  .bm-card:hover .bm-card__name { color: inherit; }

  /* 滚动条:不显示(触屏原生滑动) */
  ::-webkit-scrollbar { display: none; }
  * { scrollbar-width: none; }
}

/* ============================================================
   安全区适配(刘海屏/底部横条)
   ============================================================ */
@supports (padding: max(0px)) {
  .site-header {
    padding-top: env(safe-area-inset-top);
    height: calc(var(--header-h) + env(safe-area-inset-top));
  }
  .footer-bottom {
    padding-bottom: calc(16px + env(safe-area-inset-bottom));
  }
}

/* ============================================================
   移动端性能:禁用重效果
   ============================================================ */
@media (max-width: 768px) {
  * { will-change: auto !important; }
  .bp-hero__bg { animation: none; }
  .nw-hero__bg { animation: none; }
  .ct-hero__bg { animation: none; }
}