/* 公路内页 - 顶部大图（与效果稿一致） */
.hero-inner {
  position: relative;
  min-height: 800px;
  height: 800px;
  padding-bottom: 0;
}
.hero-inner__bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
}
/* 左侧标题区域底层蒙版，保证文字可读 */
.hero-inner .hero__content {
  position: relative;
  z-index: 2;
  height: 100%;
  padding-bottom: 80px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
}
.hero-inner .hero__content::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 160px;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.55), rgba(0, 0, 0, 0.2) 60%, transparent);
  z-index: -1;
  pointer-events: none;
}
.hero-inner__title {
  font-size: 40px;
  line-height: 1.2;
  margin-bottom: 8px;
}
.hero-inner__subtitle {
  font-size: 20px;
  letter-spacing: 0.12em;
  margin-bottom: 0;
}

/* 方案装车效果图 - 产品轮播 */
.gonglu-section {
  padding: 80px 0 60px;
  background: #fff;
}
.gonglu-section .section__title {
  color: #001329;
  font-size: 48px;
  font-weight: 700;
  text-align: left;
}
.gonglu-effect {
  position: relative;
  margin-top: 40px;
  padding: 10px 72px 180px;
  min-height: 620px;
  border-radius: 16px;
  background: #fff;
  overflow: hidden;
}
.gonglu-effect__viewport {
  position: relative;
  min-height: 540px;
}
.gonglu-effect__slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.45s ease, visibility 0.45s ease;
}
.gonglu-effect__slide.is-active {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}
.gonglu-effect__slide-inner {
  display: flex;
  align-items: center;
  gap: 40px;
}
.gonglu-effect__main-col {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
}
.gonglu-effect__tag {
  font-size: 32px;
  font-weight: 700;
  color: var(--color-primary);
  flex-shrink: 0;
  align-self: flex-start;
}
.gonglu-effect__main {
  flex: 0 0 auto;
  width: 100%;
  max-width: 1200px;
  height: auto;
  aspect-ratio: 1200 / 680;
  object-fit: contain;
  margin: 0 auto;
}

@media (hover: hover) {
  .gonglu-effect__main {
    transition: transform 0.35s ease;
  }
  .gonglu-effect__main:hover {
    transform: translateY(-6px);
  }
}
.gonglu-effect__aside {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-left: auto;
}
.gonglu-effect__feature {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 8px 16px;
  border-radius: 999px;
  background: #f5f7fb;
}
.gonglu-effect__feature-label {
  font-size: 14px;
  font-weight: 600;
  color: #001329;
  min-width: 75px;
}
.gonglu-effect__feature-icon {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: #fff;
  object-fit: contain;
}

@media (hover: hover) {
  .gonglu-effect__feature {
    transition: transform 0.25s ease, box-shadow 0.25s ease;
  }
  .gonglu-effect__feature:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 24px rgba(0, 0, 0, 0.12);
  }
}
.gonglu-effect__arrow {
  position: absolute;
  bottom: 32px;
  top: auto;
  transform: none;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid #d0d4dc;
  background: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background 0.2s ease, border-color 0.2s ease, opacity 0.2s ease;
}
.gonglu-effect__arrow--prev { left: 24px; }
.gonglu-effect__arrow--next { right: 24px; }
.gonglu-effect__arrow::after {
  content: "";
  display: block;
  width: 9px;
  height: 9px;
  border-right: 2px solid #444;
  border-top: 2px solid #444;
}
.gonglu-effect__arrow--prev::after {
  transform: rotate(-135deg);
}
.gonglu-effect__arrow--next::after {
  transform: rotate(45deg);
}
.gonglu-effect__arrow:hover {
  opacity: 0.85;
  border-color: var(--color-primary);
}
.gonglu-effect__dots {
  position: absolute;
  left: 50%;
  bottom: 32px;
  transform: translateX(-50%);
  display: flex;
  justify-content: center;
  gap: 10px;
  margin-top: 0;
}
.gonglu-effect__dot {
  width: 10px;
  height: 10px;
  border-radius: 999px;
  border: none;
  background: #d0d4dc;
  cursor: pointer;
  transition: width 0.2s ease, background 0.2s ease;
}
.gonglu-effect__dot.is-active {
  width: 24px;
  background: var(--color-primary);
}
/* 方案优势 - 标题在上方白底，下方 3:7 深色区 */
.gonglu-advantage {
  padding: 0 0 80px;
  background: #fff;
}
.gonglu-advantage__head {
  background: #fff;
  padding: 48px 0 40px;
}
.gonglu-advantage__section-title {
  max-width: 1440px;
  margin: 0 auto;
  font-size: 48px;
  font-weight: 700;
  color: #001329;
  text-align: left;
}
.gonglu-advantage__band {
  padding: 60px 0 80px;
  /* 左侧 #00469c，右侧 #001328，全屏 3:7 比例 */
  background: linear-gradient(90deg, #00469c 0 30%, #001328 30% 100%);
  color: #fff;
}
.gonglu-advantage__inner {
  position: relative;
  margin-top: 24px;
  display: flex;
  align-items: stretch;
  gap: 40px;
  max-width: 1440px;
  margin-left: auto;
  margin-right: auto;
}
.gonglu-advantage__nav {
  width: 336px;
  background: transparent;
  border-radius: 12px;
  padding: 8px 0;
  display: flex;
  flex-direction: column;
}
.gonglu-advantage__tab {
  position: relative;
  width: 100%;
  padding: 12px 24px;
  text-align: left;
  border: none;
  background: transparent;
  font-size: 16px;
  color: #ffffff;
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease, padding-left 0.2s ease;
}
.gonglu-advantage__tab + .gonglu-advantage__tab {
  margin-top: 2px;
}
.gonglu-advantage__tab.is-active {
  background: #ffffff;
  color: #00469c;
  padding-left: 32px;
}
.gonglu-advantage__tab.is-active::after {
  content: "";
  position: absolute;
  right: 18px;
  top: 50%;
  transform: translateY(-50%) rotate(45deg);
  width: 8px;
  height: 8px;
  border-right: 2px solid #00469c;
  border-top: 2px solid #00469c;
}
.gonglu-advantage__panels {
  flex: 1;
  min-width: 0;
  background: transparent;

  padding: 20px 40px 40px;
}
.gonglu-advantage__panel {
  display: none;
}
.gonglu-advantage__panel.is-active {
  display: block;
}
.gonglu-advantage__title {
  margin: 0 0 32px;
  font-size: 28px;
  font-weight: 700;
  color: #fff;
}
.gonglu-advantage__compare {
  display: flex;
  gap: 40px;
  margin-bottom: 32px;
  flex-wrap: wrap;
}
.gonglu-advantage__compare-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.9);
}
.gonglu-advantage__compare-label {
  display: block;
}
.gonglu-advantage__compare-icon {
  width: 16px;
  height: 11px;
  margin-top: 6px;
  object-fit: contain;
}
.gonglu-advantage__compare-item .gonglu-advantage__compare-icon {
  width: 48px;
  height: auto;
}
.gonglu-advantage__compare-item img,.gonglu-advantage__compare-item video {
  width: 460px;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: 8px;
}
.gonglu-advantage__desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.8);
}

/* 100+公路AI项 - 标题在板块上方白底，下方深蓝网格 */
.gonglu-ai {
  padding: 0 0 80px;
  color: #fff;
}
.gonglu-ai__head {
  background: #fff;
  padding: 48px 0 40px;
  margin-bottom: 0;
  max-width: 1440px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 0;
  padding-right: 0;
}
.gonglu-ai__head .section__title {
  color: #001329;
  font-size: 48px;
  font-weight: 700;
  text-align: left;
  margin: 0;
}
.gonglu-ai__body-wrap {
  width: 100vw;
  margin-left: calc(-50vw + 50%);
  margin-top: 0;
  padding: 60px 0 80px;
  background-image: url('../img/section-projects-bg.png');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}
.gonglu-ai__body {
  margin-top: 0;
}
.gonglu-ai__row {
  position: relative;
  display: flex;
  align-items: stretch;
  gap: 40px;
  margin-bottom: 33px;
}
.gonglu-ai__col-label {
  width: 90px;
  min-width: 90px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  background: #fff;
  font-size: 24px;
  font-weight: 700;
  color: #001329;
  line-height: 24px;
  text-align: center;
  writing-mode: vertical-rl;
  text-orientation: mixed;
}
.gonglu-ai__col-label::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 40px;
  background: var(--color-primary, #00469c);
}
.gonglu-ai__col-label--active {
  background: #fff;
}
.gonglu-ai__card {
  flex: 1;
  min-width: 0;
  max-width: 465px;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  background: #fff;
  cursor: pointer;
  transition: transform 0.3s ease;
}

@media (hover: hover) {
  .gonglu-ai__card:hover {
    transform: translateY(-4px);
  }
}

/* 100+ 公路 AI 项：右侧卡片区域横向轮播，左侧竖排标签保持不动 */
.gonglu-ai__track {
  flex: 1;
  display: flex;
  align-items: stretch;
  gap: 0;
  overflow-x: auto;
  overflow-y: hidden;
  scroll-behavior: smooth;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}

.gonglu-ai__track::-webkit-scrollbar {
  display: none;
}

/* JS 无缝轮播模式（PC 端）：使用 transform 位移，隐藏原生滚动 */
.gonglu-ai__track.is-looping {
  overflow: hidden;
  scroll-behavior: auto;
}

/* transform 无缝轮播时，避免两段内容拼接处间距丢失导致跳动 */
.gonglu-ai__track.is-looping .gonglu-ai__card {
  margin-right: 40px;
}
.gonglu-ai__track.is-looping .gonglu-ai__card:last-child {
  margin-right: 40px;
}

/* 每行默认展示 3 张卡片，间距等比 */
.gonglu-ai__track .gonglu-ai__card {
  flex: 0 0 calc((100% - 80px) / 3);
  max-width: calc((100% - 80px) / 3);
  margin-right: 40px;
}

.gonglu-ai__track .gonglu-ai__card:last-child {
  margin-right: 0;
}

/* 行内轮播左右透明按钮，覆盖在图片左右内缘 */
.gonglu-ai__arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: none;
  background: transparent;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2;
}

.gonglu-ai__arrow::before {
  content: "";
  width: 12px;
  height: 12px;
  border-left: 2px solid #ffffff;
  border-bottom: 2px solid #ffffff;
}

.gonglu-ai__arrow--prev {
  left: 125px; /* 贴近第一张图片左侧，避开竖排标签 */
}

.gonglu-ai__arrow--prev::before {
  transform: rotate(45deg);
  margin-left: 2px;
}

.gonglu-ai__arrow--next {
  right: 16px;
}

.gonglu-ai__arrow--next::before {
  transform: rotate(-135deg);
  margin-right: 2px;
}
.gonglu-ai__card img {
  flex: 1;
  width: 100%;
  height: 272px;
  object-fit: cover;
  display: block;
}
.gonglu-ai__card-label {
  padding: 12px 22px;
  background: #fff;
  font-size: 18px;
  color: #001329;
  line-height: 24px;
}

/* 环卫作业智能监测平台 - 标题在上方，下方左图右文 */
.gonglu-platform {
  padding: 0 0 80px;
}
.gonglu-platform__head {
  background: #fff;
  padding: 48px 0 40px;
  max-width: 1440px;
  margin: 0 auto;
  padding-left: 0;
  padding-right: 0;
}
.gonglu-platform__head .section__title {
  color: #001329;
  font-size: 48px;
  font-weight: 700;
  text-align: left;
  margin: 0;
}
.gonglu-platform__body {
  margin-top: 0;
}
.gonglu-platform__inner {
  position: relative;
  max-width: 1440px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 24px;
}
.gonglu-platform__viewport {
  flex: 1;
  min-width: 0;
}
.gonglu-platform__slide {
  display: none;
  align-items: stretch;
}
.gonglu-platform__slide.is-active {
  display: flex;
}
.gonglu-platform__img {
  width: 1078px;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  flex-shrink: 0;
  display: block;
}

@media (hover: hover) {
  .gonglu-platform__img {
    transition: transform 0.35s ease, box-shadow 0.35s ease;
  }
  .gonglu-platform__img:hover {
    transform: translateY(-4px);
    box-shadow: 0 18px 36px rgba(0, 0, 0, 0.25);
  }
}
.gonglu-platform__desc {
  flex: 1;
  min-width: 0;
  padding: 40px 48px;
  background: #f2f2f6;
}
.gonglu-platform__desc h3 {
  margin: 0 0 16px;
  font-size: 24px;
  font-weight: 700;
  color: #001329;
}
.gonglu-platform__desc p {
  margin: 0;
  font-size: 16px;
  line-height: 1.7;
  color: #001329;
}
.gonglu-platform__arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid #d0d4dc;
  background: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background 0.2s ease, border-color 0.2s ease, opacity 0.2s ease;
}
.gonglu-platform__arrow--prev {
  left: -56px;
}
.gonglu-platform__arrow--next {
  right: -56px;
}
.gonglu-platform__arrow::after {
  content: "";
  display: block;
  width: 9px;
  height: 9px;
  border-right: 2px solid #444;
  border-top: 2px solid #444;
}
.gonglu-platform__arrow--prev::after {
  transform: rotate(-135deg);
}
.gonglu-platform__arrow--next::after {
  transform: rotate(45deg);
}
.gonglu-platform__arrow:hover {
  opacity: 0.85;
  border-color: var(--color-primary);
}

/* 中大屏兼容：避免 1400 左右标题贴边 */
@media (max-width: 1500px) and (min-width: 1201px) {
  .gonglu-advantage__head,
  .gonglu-ai__head,
  .gonglu-platform__head {
    padding-left: var(--gutter);
    padding-right: var(--gutter);
  }

  /* 1200-1400 区间避免平台描述栏被挤压成“竖排”观感 */
  .gonglu-platform__body {
    padding-left: var(--gutter);
    padding-right: var(--gutter);
  }
  .gonglu-platform__slide.is-active {
    flex-direction: column;
  }
  .gonglu-platform__img {
    width: 100%;
    max-width: 100%;
  }
  .gonglu-platform__desc {
    width: 100%;
    padding: 24px 28px;
  }
  .gonglu-platform__arrow--prev {
    left: 12px;
  }
  .gonglu-platform__arrow--next {
    right: 12px;
  }
}

/* ========== 响应式 ========== */
/* 平板 */
@media (max-width: 1200px) {
  .hero-inner {
    min-height: 600px;
    height: 600px;
  }
  .hero-inner__title { font-size: 32px; }
  .hero-inner__subtitle { font-size: 18px; }
  .gonglu-section { padding: 60px 0 48px; }
  .gonglu-section .section__title { font-size: 40px; }
  .gonglu-effect {
    padding: 32px 40px 140px;
    min-height: 520px;
  }
  .gonglu-effect__viewport { min-height: 420px; }
  .gonglu-effect__slide-inner { gap: 28px; }
  .gonglu-effect__main { max-width: 100%; }
  .gonglu-effect__aside { margin-left: 0; }
  .gonglu-effect__arrow--prev { left: 20px; }
  .gonglu-effect__arrow--next { right: 20px; }
  .gonglu-effect__dots { bottom: 28px; }
  .gonglu-advantage__band { padding: 48px 0 60px; }
  .gonglu-advantage__inner { gap: 28px; margin-top: 20px; }
  .gonglu-advantage__nav { width: 280px; }
  .gonglu-advantage__panels { padding: 16px 28px 32px; }
  .gonglu-advantage__title { font-size: 24px; margin-bottom: 24px; }
  .gonglu-advantage__compare { gap: 24px; margin-bottom: 24px; }
  .gonglu-ai__head { padding: 40px 0 32px; }
  .gonglu-ai__head .section__title { font-size: 40px; }
  .gonglu-ai__body-wrap { padding: 48px 0 60px; }
  .gonglu-ai__row { gap: 28px; margin-bottom: 28px; }
  .gonglu-ai__col-label { width: 80px; min-width: 80px; font-size: 20px; }
  .gonglu-ai__card-label { font-size: 16px; padding: 10px 18px; }
  .gonglu-platform__head { padding: 40px 0 32px; }
  .gonglu-platform__head .section__title { font-size: 40px; }
  .gonglu-platform__inner { gap: 20px; }
  .gonglu-platform__arrow--prev { left: -40px; }
  .gonglu-platform__arrow--next { right: -40px; }
  .gonglu-platform__img { width: 100%; max-width: 100%; }
  .gonglu-platform__desc { padding: 32px 32px; }
  .gonglu-platform__desc h3 { font-size: 22px; }
  .gonglu-platform__desc p { font-size: 15px; }
}

/* 过渡区间（769-1200）：优化两侧留白与模块拥挤问题 */
@media (max-width: 1200px) and (min-width: 769px) {
  .gonglu-advantage__head,
  .gonglu-ai__head,
  .gonglu-platform__head {
    padding-left: var(--gutter);
    padding-right: var(--gutter);
  }
  .gonglu-advantage__band {
    background: #001328;
  }

  .gonglu-advantage__inner {
    max-width: none;
    padding-left: var(--gutter);
    padding-right: var(--gutter);
    flex-direction: column;
    gap: 20px;
  }
  .gonglu-advantage__nav {
    width: 100%;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px 12px;
    padding: 0;
  }
  .gonglu-advantage__tab {
    min-height: 44px;
    text-align: center;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 10px 14px;
  }
  .gonglu-advantage__tab.is-active {
    padding-left: 14px;
  }
  .gonglu-advantage__panels {
    padding: 20px 24px 28px;
  }
  .gonglu-advantage__compare {
    gap: 20px;
  }
  .gonglu-advantage__compare-item {
    flex: 1 1 calc(50% - 10px);
  }
  .gonglu-advantage__compare-item img {
    width: 100%;
  }

  .gonglu-ai__body {
    padding-left: var(--gutter);
    padding-right: var(--gutter);
  }
  .gonglu-ai__row {
    gap: 20px;
  }
  .gonglu-ai__col-label {
    width: 72px;
    min-width: 72px;
    font-size: 18px;
  }
  .gonglu-ai__track .gonglu-ai__card {
    flex: 0 0 calc((100% - 24px) / 2);
    max-width: calc((100% - 24px) / 2);
    margin-right: 24px;
  }
  .gonglu-ai__arrow--prev {
    left: 96px;
  }

  .gonglu-platform__body {
    padding-left: var(--gutter);
    padding-right: var(--gutter);
  }
  .gonglu-platform__slide.is-active {
    flex-direction: column;
  }
  .gonglu-platform__desc {
    width: 100%;
    padding: 24px 24px;
  }
  .gonglu-platform__arrow--prev {
    left: 12px;
  }
  .gonglu-platform__arrow--next {
    right: 12px;
  }

  /* 轮播效果图（约 800px 宽）保持左右布局，避免 aside 把主图挤歪 */
  .gonglu-effect__aside {
    margin-left: auto;
  }
  .gonglu-effect__slide-inner {
    gap: 20px;
  }
}

/* 800-920 宽：让 P 标签更稳定居中 */
@media (max-width: 920px) and (min-width: 769px) {
  .gonglu-effect__tag {
    align-self: center;
  }
  .gonglu-effect__main {
    max-width: 560px;
  }
}

/* 小平板 / 大手机 */
@media (max-width: 768px) {
  .hero-inner {
    min-height: 480px;
    height: 480px;
  }
  .hero-inner__title { font-size: 26px; }
  .hero-inner__subtitle { font-size: 14px; }
  .gonglu-section { padding: 40px 0 32px; }
  .gonglu-section .section__title { font-size: 32px; }
  .gonglu-effect {
    padding: 24px 16px 120px;
    min-height: auto;
  }
  .gonglu-effect__viewport { min-height: 540px; }
  .gonglu-effect__slide-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 20px;
  }
  .gonglu-effect__main-col { width: 100%; align-items: flex-start; }
  .gonglu-effect__main { max-width: 100%; }
  .gonglu-effect__aside { width: 100%; margin-left: 0; }
  .gonglu-effect__feature { padding: 10px 14px; }
  .gonglu-effect__feature-label { font-size: 13px; }
  .gonglu-effect__feature-icon { width: 40px; height: 40px; }
  .gonglu-effect__arrow { width: 36px; height: 36px; bottom: 24px; }
  .gonglu-effect__arrow--prev { left: 12px; }
  .gonglu-effect__arrow--next { right: 12px; }
  .gonglu-effect__arrow::after { width: 7px; height: 7px; }
  .gonglu-effect__dots { bottom: 24px; gap: 8px; }
  .gonglu-effect__dot { width: 8px; height: 8px; }
  .gonglu-effect__dot.is-active { width: 20px; }
  .gonglu-effect__tag { font-size: 26px; }
  .gonglu-advantage { padding: 0 0 48px; }
  .gonglu-advantage__head { padding: 28px 0 24px; }
  .gonglu-advantage__section-title { font-size: 28px; padding: 0 20px; }
  .gonglu-advantage__band {
    padding: 16px 0 0;
    background: transparent;
  }
  .gonglu-advantage__inner {
    flex-direction: column;
    margin-top: 0;
    gap: 0;
    max-width: none;
  }
  .gonglu-advantage__nav {
    width: 100%;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px 12px;
    border-radius: 0;
    padding: 12px 16px;
    background: #00469c;
  }
  .gonglu-advantage__tab {
    white-space: normal;
    padding: 10px 12px;
    font-size: 13px;
    text-align: center;
    min-height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
  }
  .gonglu-advantage__tab + .gonglu-advantage__tab { margin-top: 0; }
  .gonglu-advantage__tab.is-active { padding-left: 12px; }
  .gonglu-advantage__panels {
    padding: 24px 16px 28px;
    background: #001328;
  }
  .gonglu-advantage__title { font-size: 22px; margin-bottom: 20px; }
  .gonglu-advantage__compare { flex-direction: column; gap: 20px; margin-bottom: 20px; }
  .gonglu-advantage__compare-item img { max-width: 100%; }
  .gonglu-advantage__desc { font-size: 14px; }
  .gonglu-ai { padding: 0 0 48px; }
  .gonglu-ai__head { padding: 28px 0 24px; }
  .gonglu-ai__head .section__title { font-size: 28px; padding: 0 20px; }
  .gonglu-ai__body-wrap { padding: 36px 0 48px; }
  .gonglu-ai__body { padding-left: var(--gutter); padding-right: var(--gutter); }
  .gonglu-ai__row {
    flex-wrap: nowrap;
    flex-direction: row;
    gap: 16px;
    margin-bottom: 24px;
  }
  .gonglu-ai__track {
    flex-direction: row;
    gap: 0;
  }
  .gonglu-ai__track .gonglu-ai__card {
    flex: 0 0 100%;
    max-width: 100%;
    margin-right: 16px;
  }
  .gonglu-ai__track .gonglu-ai__card:last-child {
    margin-right: 0;
  }
  .gonglu-ai__card-label { font-size: 15px; padding: 10px 16px; }
  /* 对齐首页移动端策略：图片按原始比例展示，不固定高度、不裁切、不被 flex 拉伸 */
  .gonglu-ai__card img {
    flex: 0 0 auto;
    width: 100%;
    height: auto;
    object-fit: contain;
    display: block;
  }
  .gonglu-ai__arrow {
    width: 32px;
    height: 32px;
    top: 50%;
    transform: translateY(-50%);
  }
  .gonglu-ai__arrow--prev { left: 12px; }
  .gonglu-ai__arrow--next { right: 12px; }
  .gonglu-platform { padding: 0 0 48px; }
  .gonglu-platform__head { padding: 28px 0 24px; }
  .gonglu-platform__head .section__title { font-size: 28px; padding: 0 20px; }
  .gonglu-platform__body { padding-left: 16px; padding-right: 16px; }
  .gonglu-platform__inner {
    flex-direction: row;
    flex-wrap: nowrap;
    align-items: stretch;
    gap: 0;
  }
  .gonglu-platform__viewport {
    flex: 1;
    min-width: 0;
    width: 100%;
  }
  .gonglu-platform__arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    left: auto;
    right: auto;
    z-index: 2;
    flex-shrink: 0;
  }
  .gonglu-platform__arrow--prev { left: 20px; }
  .gonglu-platform__arrow--next { right: 20px; }
  .gonglu-platform__slide.is-active {
    flex-direction: column;
    width: 100%;
  }
  .gonglu-platform__img {
    width: 100%;
    max-width: 100%;
    flex-shrink: 0;
  }
  .gonglu-platform__desc {
    width: 100%;
    padding: 24px 20px;
  }
  .gonglu-platform__desc h3 { font-size: 20px; }
  .gonglu-platform__desc p { font-size: 14px; }
}

/* 600-700 区间：装车效果轮播底部控件防重叠 */
@media (max-width: 700px) and (min-width: 600px) {
  .gonglu-effect {
    padding-bottom: 136px;
  }
  .gonglu-effect__viewport {
    min-height: 620px;
  }
  .gonglu-effect__arrow,
  .gonglu-effect__dots {
    bottom: 30px;
  }
}

/* 600-768 区间：进一步拉开底部控件与功能条的间距 */
@media (max-width: 768px) and (min-width: 600px) {
  .gonglu-effect {
    padding-bottom: 168px;
  }
  .gonglu-effect__viewport {
    min-height: 680px;
  }
  .gonglu-effect__arrow,
  .gonglu-effect__dots {
    bottom: 22px;
  }
}

/* 481-560 区间：修复 500 左右底部控件与最后一行重叠 */
@media (max-width: 560px) and (min-width: 481px) {
  .gonglu-effect {
    padding-bottom: 136px;
  }
  .gonglu-effect__viewport {
    min-height: 610px;
  }
  .gonglu-effect__arrow,
  .gonglu-effect__dots {
    bottom: 18px;
  }
}

/* 手机 */
@media (max-width: 480px) {
  .hero-inner {
    min-height: 400px;
    height: 400px;
  }
  .hero-inner .hero__content::before { height: 120px; }
  .hero-inner__title { font-size: 22px; }
  .hero-inner__subtitle { font-size: 12px; }
  .gonglu-section { padding: 32px 0 24px; }
  .gonglu-section .section__title { font-size: 26px; }
  .gonglu-effect {
    padding: 20px 12px 100px;
  }
  .gonglu-effect__viewport { min-height: 520px; }
  .gonglu-effect__slide-inner { gap: 16px; }
  .gonglu-effect__tag { font-size: 22px; }
  .gonglu-effect__arrow { width: 32px; height: 32px; bottom: 20px; }
  .gonglu-effect__arrow--prev { left: 8px; }
  .gonglu-effect__arrow--next { right: 8px; }
  .gonglu-effect__dots { bottom: 20px; }
  .gonglu-effect__dot { width: 6px; height: 6px; }
  .gonglu-effect__dot.is-active { width: 16px; }
  .gonglu-advantage { padding: 0 0 40px; }
  .gonglu-advantage__head { padding: 24px 0 20px; }
  .gonglu-advantage__section-title { font-size: 24px; padding: 0 16px; }
  .gonglu-advantage__band { padding: 0; background: transparent; }
  .gonglu-advantage__nav {
    padding: 10px 12px;
    gap: 6px 10px;
  }
  .gonglu-advantage__tab {
    padding: 8px 10px;
    font-size: 12px;
    min-height: 36px;
  }
  .gonglu-advantage__tab.is-active { padding-left: 10px; }
  .gonglu-advantage__panels {
    padding: 20px 12px 24px;
    background: #001328;
  }
  .gonglu-advantage__title { font-size: 20px; margin-bottom: 16px; }
  .gonglu-advantage__compare-item img { width: 100%; }
  .gonglu-advantage__compare-icon { width: 40px; height: auto; }
  .gonglu-ai { padding: 0 0 40px; }
  .gonglu-ai__head { padding: 24px 0 20px; }
  .gonglu-ai__head .section__title { font-size: 24px; padding: 0 16px; }
  .gonglu-ai__body-wrap { padding: 28px 0 40px; }
  .gonglu-ai__row {
    flex-direction: column;
    gap: 16px;
    margin-bottom: 20px;
  }
  .gonglu-ai__col-label {
    width: 100%;
    min-width: 100%;
    min-height: 72px;
    writing-mode: horizontal-tb;
    padding-top: 36px;
    font-size: 18px;
  }
  .gonglu-ai__col-label::before { height: 36px; }
  /* 继续保持原始比例，不固定高度 */
  .gonglu-ai__card img { flex: 0 0 auto; height: auto; object-fit: contain; }
  .gonglu-ai__card-label { font-size: 14px; padding: 8px 12px; }
  .gonglu-platform { padding: 0 0 40px; }
  .gonglu-platform__head { padding: 24px 0 20px; }
  .gonglu-platform__head .section__title { font-size: 24px; padding: 0 16px; }
  .gonglu-platform__body { padding-left: 12px; padding-right: 12px; }
  .gonglu-platform__arrow { width: 36px; height: 36px; top: 50%; }
  .gonglu-platform__arrow--prev { left: 14px; }
  .gonglu-platform__arrow--next { right: 14px; }
  .gonglu-platform__desc { padding: 20px 16px; width: 100%; }
  .gonglu-platform__desc h3 { font-size: 18px; }
  .gonglu-platform__desc p { font-size: 13px; }
}