/* stylelint-disable selector-class-pattern */
/* stylelint-disable no-descending-specificity */
/* stylelint-disable no-duplicate-selectors */
/* stylelint-disable value-no-vendor-prefix */

/* html,
body {
  overflow-x: clip;
} */

/* ================= Header ================= */

/* ================= 主体布局 ================= */
.middle-wrap {
  background-color: #fff;
}

/* 覆盖在视差 Banner 之上，需实心背景 + 层级；
   顶部阴影让“内容向上推”的覆盖感肉眼可见 */
.middle {
  position: relative;
  z-index: 1;
  background-color: #fff;
  padding: 0 clamp(0.0625rem, -2.078rem + 9.1329vw, 5rem);
  margin: 0 auto;
  box-shadow: 0 -24px 48px rgba(15, 23, 42, 0.22);
}

.middle__one {
  grid-template-columns: repeat(2, 1fr);
  align-self: stretch;
  justify-self: stretch;
  grid-template-areas:
    "one two"
    "four three"
    "five five";
}

.middle__one-item {
  height: clamp(23rem, 19.9653rem + 12.948vw, 30rem);
}

.middle__one-1 {
  grid-area: one;
  overflow: hidden;
}

.middle__one-2 {
  grid-area: two;
}

.middle__one-3 {
  grid-area: three;
  overflow: hidden;
}

.middle__one-4 {
  grid-area: four;
}

.middle__one-1 img,
.middle__one-3 img {
  transition: transform 1s cubic-bezier(0.22, 0.61, 0.36, 1);
}

.middle__one-5 {
  grid-area: five;
  margin-top: clamp(1rem, 2vw, 3rem);
  position: relative;

  /* height: 28rem; */
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-template-areas: "img word word";
  padding: clamp(1rem, 5vw, 3rem);
}

.middle__one-5-bg {
  position: absolute;
  z-index: -1;
  left: 0;
  width: 100%;
  height: 100%;
  object-position: center;
  object-fit: cover;
}

.middle__one-5-img {
  width: 28rem;
  grid-area: img;
}

.middle__one-5-right {
  grid-area: word;
  margin-left: 3rem;

  /* padding: 0 1rem; */
  line-height: 2;
  color: #fff;
  align-self: start;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.middle__one-5-right > p {
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 5;
  overflow: hidden;
  font-size: var(--pd-caption);
  text-overflow: ellipsis;
}

.middle__one-item-article {
  background-color: #1c60af;
  color: #fff;
  box-sizing: border-box;
  transition: background-color 0.5s ease, box-shadow 0.5s ease;
}

.middle__one-1::before,
.middle__one-3::before {
  content: "";
  position: absolute;
  width: 100%;
  height: 100%;
  background-color: rgba(28, 96, 175, 0.3);
  z-index: 1;
  pointer-events: none;
}

.middle__one-item-article-title {
  padding: 4rem 0 2rem;
  font-size: var(--fs-h2);
  transition: color 0.5s ease;
}

.middle__one-item-article-content {
  display: grid;
  grid-template-columns: repeat(3, 1fr);

  /* font-size: clamp(0.8rem, 1.5rem, 2rem); */

  /* font-size: (1.25rem, 0.8rem + 2.2vw, 2.75rem); */
  font-size: var(--fs-h4);
  transition: color 0.5s ease;
  gap: 1rem;
  margin: 0 3rem;
}

.middle__one-item-article-content span::before {
  content: "·";
  margin-right: 10px;
  font-size: 20px;
}

.middle__one-item-article-btn {
  background-color: transparent;
  margin-top: clamp(1rem, 4vw, 5rem);
  color: #fff;
  padding: 0.5rem 2rem;
  font-size: var(--fs-h4);
  border: 1px solid rgba(255, 255, 255, 0.7);
  border-radius: var(--border-radius-large);
  transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}

.middle__one-5-button {
  background-color: transparent;
  border: 1px solid #fff;
  color: #fff;
  border-radius: 30px;
  padding: 0.5rem 2rem;
  font-size: var(--pd-caption);
  width: 18rem;
  text-align: center;
  margin-top: 2.5rem;
  transition: background-color 0.3s ease, color 0.3s ease;
}

/* hover 效果仅在支持悬停的设备（PC）启用，避免手机端“粘滞” hover */
@media (hover: hover) {
  .middle__one-1:hover img,
  .middle__one-3:hover img {
    transform: scale(1.06);
  }

  .middle__one-item-article:hover {
    /* background-color: #fff; */
    box-shadow: 0 0 15px rgba(32, 32, 32, 0.4);
  }

  /* .middle__one-item-article:hover .middle__one-item-article-title,
  .middle__one-item-article:hover .middle__one-item-article-content {
    /* color: #333; */

  /* } */

  .middle__one-item-article-btn:hover {
    background-color: #fff;
    color: #1c60af;
    border-color: #fff;
  }

  .middle__one-item-article:hover .middle__one-item-article-btn {
    /* color: #1c60af;
    border-color: #1c60af; */
  }

  .middle__one-5-button:hover {
    background-color: #fff;
    color: #333;
  }
}

/* ================= 新闻卡片 ================= */
.middle__news {
  gap: 1rem;
  padding-bottom: 3rem;
}

.middle__news-item {
  /* border-radius: 31px; */
  background-color: #fff;
  box-shadow: 0 0 0.5rem rgba(32, 32, 32, 0.1);
  padding: 20px;
  box-sizing: border-box;
  transition: transform 0.45s cubic-bezier(0.22, 0.61, 0.36, 1), box-shadow 0.45s ease;
}

.middle__news-item-thumb {
  overflow: hidden;
  border-radius: 12px;
}

.middle__news-item-img {
  border-radius: 12px;
  width: 100%;
  transition: transform 0.8s cubic-bezier(0.22, 0.61, 0.36, 1);
}

.middle__news-item-title {
  margin: 20px 0 40px;
  font-size: var(--fs-h4);
  color: #333;
  transition: color 0.3s ease;
  font-weight: normal;
}

.middle__news-item-desc {
  color: #666;
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 5;
  overflow: hidden;
  text-overflow: ellipsis;
}

@media (hover: hover) {
  .middle__news-item:hover {
    transform: translate3d(0, -8px, 0);
    box-shadow: 0 18px 40px rgba(32, 32, 32, 0.25);
  }

  .middle__news-item:hover .middle__news-item-img {
    transform: scale(1.06);
  }

  .middle__news-item:hover .middle__news-item-title {
    color: var(--color-primary);
  }
}

/* ================= Banner 轮播 ================= */
.slider {
  position: relative;
  overflow: hidden;
  height: 100vh;
  z-index: 0;
  will-change: transform; /* 视差位移仅作用于此元素 */
  touch-action: pan-y; /* 纵向滚动交给浏览器原生，横向滑动留给 JS 切帧 */
}

.slider-item {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  transition: opacity 0.9s ease;
}

.slider-item::before {
  content: "";
  position: absolute;
  width: 100%;
  height: 100%;
  background-color: rgba(33, 33, 33, 0.3);
  z-index: 1;
}

.slider-item.active {
  opacity: 1;
}

/* Ken Burns：入场时从 1.15 缓放到 1，画面有呼吸感 */
.slider-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scale(1.15);
  transition: transform 2.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.slider-item.active img {
  transform: scale(1);
}

/* 标语文字交错上浮 */
.slider-item .text {
  position: absolute;
  top: 30%;
  right: 5%;
  max-width: 84%;
  color: #fff;
  z-index: 3;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
}

.slider-item-2 .text {
  top: 15%;
  width: 100%;
  text-align: center;
}

.slider-item-3 .text {
  top: 20%;
  left: 5%;
}

.slider-item .text h3,
.slider-item .text p {
  opacity: 0;
  transform: translate3d(0, 28px, 0);
  transition: opacity 0.7s ease, transform 0.7s cubic-bezier(0.22, 0.61, 0.36, 1);
}

.slider-item.active .text h3 {
  opacity: 1;
  transform: translate3d(0, 0, 0);
  transition-delay: 0.3s;
}

.slider-item.active .text p {
  /* opacity: 0.85; */
  opacity: 1;
  transform: translate3d(0, 0, 0);
  transition-delay: 0.5s;
}

.slider-item .text h3 {
  font-size: var(--fs-hero);
  margin-bottom: 10px;
}

.slider-item .text p {
  font-size: var(--fs-hero);
}

.dots {
  position: absolute;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 10px;
  z-index: 10;
}

.dots span {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.5);
  cursor: pointer;
  transition: width 0.35s ease, background-color 0.35s ease, border-radius 0.35s ease;
}

.dots span.active {
  background: var(--color-primary);
  width: 30px;
  border-radius: 6px;
}

/* 向下滚动提示 */
.scroll-tip {
  position: absolute;
  right: 1rem;
  bottom: 1rem;
  transform: translateX(-50%);
  z-index: 4;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  font-size: var(--fs-caption);
  letter-spacing: 2px;
  color: #fff;
  transition: opacity 0.4s ease;
}

.scroll-tip.is-hidden {
  opacity: 0;
}

.scroll-tip .mouse {
  width: 26px;
  height: 42px;
  border: 2px solid rgba(255, 255, 255, 0.7);
  border-radius: 999px;
  position: relative;
}

.scroll-tip .mouse::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 9px;
  width: 4px;
  height: 8px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.95);
  transform: translateX(-50%);
  animation: wheel 1.35s infinite;
}

@keyframes wheel {
  0% {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
  }

  100% {
    opacity: 0;
    transform: translateX(-50%) translateY(1rem);
  }
}

@media (max-width: 1200px) {
  .middle__news {
    grid-template-columns: repeat(2, 1fr);
  }

  .middle__one-item-article-content {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .middle__news {
    grid-template-columns: repeat(1, 1fr);
  }

  .middle__one {
    grid-template-columns: auto;
    grid-template-areas:
      "one"
      "two"
      "three"
      "four"
      "five";
  }

  .middle__one-5 {
    grid-template-columns: repeat(1, 1fr);
    grid-template-areas:
      "img"
      "word";
  }

  .middle__one-5-button {
    margin: 2.5rem auto 0;
  }

  .middle__one-5-right {
    margin-left: 0;
    font-size: 0.8rem;
  }

  .middle__one-5-img {
    width: 10rem;
    margin: 0 auto;
  }
}

/* 小屏手机 */
@media (max-width: 576px) {
  .middle__one-item-article-content {
    margin: 0;
  }
}