/* ================ 公共样式 ================ */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --white-color: #fff;
  --gray-color: #aeb4a6;
  --green-color: #94de1d;
  --index: calc(1vw + 1vh);
  --transition: ease-in-out;

  --grid-width: 1140px;
  --grid-gutter: 0.5em;
}

html,
body {
  height: 100%;
  background: #2b474b;
  color: var(--white-color);
  /* 移动端优化 */
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  -webkit-tap-highlight-color: transparent;
  touch-action: pan-y;
  overscroll-behavior: none;
}

/* ================ Grid 样式 ================ */
.container {
  max-width: calc(var(--grid-width) + var(--grid-gutter) * 2);
  min-width: calc(320px + var(--grid-gutter) * 2);
  padding: 0 var(--grid-gutter);
  margin: auto;
}

.row {
  display: flex;
  margin: 0 calc(var(--grid-gutter) * -1);
}

.col {
  width: fit-content;
  padding: 0 var(--grid-gutter);
}

.col--lead {
  flex: 1;
}

.col--center {
  display: flex;
  align-items: center;
  justify-content: center;
}

.col--right {
  display: flex;
  justify-content: right;
}

/* ================ 主样式 ================ */
.slider {
  height: 100%;
}

.slider-ui {
  position: absolute;
  z-index: 10;
  inset: 0;
  pointer-events: none;
}

.header-wrapper {
  display: flex;
  flex-direction: column;
  height: 100%;
}

.slider__layer {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  will-change: transform;
}

.top-line {
  padding: 3.2em 0;
}

/* logo */
.logo {
  display: block;
  pointer-events: auto;
  -webkit-tap-highlight-color: transparent;
}

.logo img {
  display: block;
  width: 15.5em;
}

/* 主菜单 */
.main-menu {
  pointer-events: auto;
}

.main-menu li {
  list-style-type: none;
  display: inline-block;
}

.main-menu li > * {
  color: var(--gray-color);
  text-transform: uppercase;
  font-weight: 700;
  text-decoration: none;
  font-size: 1.5em;
  letter-spacing: 0.25em;
  position: relative;
  -webkit-tap-highlight-color: transparent;
  user-select: none;
  -webkit-user-select: none;
}

.main-menu li > *::before,
.main-menu li > *::after {
  content: "";
  display: inline-block;
  height: 2px;
  background-color: var(--green-color);
  width: 11.25px;
  vertical-align: middle;
  top: -1px;
  left: -1.5px;
  position: relative;
  border-radius: 10em;
  margin: 0 7.25px;
  visibility: hidden;
}

.main-menu li.active > *,
.main-menu li:hover > * {
  color: var(--white-color);
}

.main-menu li.active > *::before,
.main-menu li:hover > *::before,
.main-menu li.active > *::after,
.main-menu li:hover > *::after {
  visibility: visible;
}

/* 文字内容 */
.header-content {
  flex: 1;
  text-align: center;
  display: flex;
  justify-content: center;
  align-items: center;
  line-height: 1;
  flex-direction: column;
}

.header-content__slide {
  position: absolute;
}

.header-content h1 {
  font-size: calc(var(--index) * 11);
  text-transform: uppercase;
  font-weight: 900;
  margin-bottom: 4rem;
}

.header-content p {
  font-size: 1.5rem;
  max-width: 560px;
  font-weight: 600;
  line-height: 1.4;
  display: inline-block;
}

.header-bottom {
  min-height: 120px;
}

.header-content__slide.active .letter {
  opacity: 1;
  top: 0;
}

.header-content__slide.active + * .letter {
  top: 5em;
}

.header-content__info {
  top: -18em;
  position: relative;
  opacity: 0;
  transition: opacity 1s ease, top 1.25s ease;
}

.header-content__slide.active .header-content__info {
  opacity: 1;
  top: 0;
}

.header-content__slide:has(* + .active .header-content__info),
.header-content__slide.active + * .header-content__info {
  top: 18em;
}

/* 按钮 */
.button {
  padding: 1.05em 2.6em;
  color: var(--white-color);
  background-color: var(--green-color);
  border: 1.5px solid transparent;
  border-radius: 10em 0 10em 10em;
  font-weight: 600;
  text-decoration: none;
  letter-spacing: 0.21em;
  text-transform: uppercase;
  font-size: 0.65em;
  cursor: pointer;
  pointer-events: auto;
  /* 移动端优化 */
  -webkit-tap-highlight-color: transparent;
  user-select: none;
  -webkit-user-select: none;
}

.button--top {
  background-color: transparent;
  border-color: var(--green-color);
  margin: 0 1.5em 0 2em;
  font-size: 1.5rem;
}

.button--main {
  margin-top: 3em;
  padding: 1em 2em;
  font-size: 1.5rem;
}

.button:hover {
  background-color: var(--green-color);
}

/* slide */
.slider__item {
  overflow: hidden;
  transform: scale(1.25) !important;
  transition: 2s ease !important;
}

.slider__item:not(.swiper-slide-active) {
  transform: scale(1) !important;
}

/* 叠加文字效果 */
.letters .letter {
  position: relative;
  text-shadow: 25px 0 35px rgba(0 0 0 / 0.4);
  margin-left: calc(var(--index) * -2.65);
  right: calc(var(--index) * -2.65);
  opacity: 0;
  top: -5em;
  transition: opacity var(--transition), top var(--transition);
}

/* ================ 关于我们样式 ================ */
.about-content {
  text-align: center;
  max-width: 800px;
}

.about-content p {
  font-size: 1.5rem;
  margin-bottom: 0.5em;
  line-height: 1.6;
}

.stats-grid {
  display: flex;
  justify-content: center;
  gap: 3em;
  margin-top: 3em;
  flex-wrap: wrap;
}

.stat-item {
  text-align: center;
  min-width: 120px;
}

.stat-number {
  font-size: 3rem;
  font-weight: 900;
  color: var(--green-color);
  margin-bottom: 0.5em;
  text-shadow: 0 0 20px rgba(148, 222, 29, 0.3);
}

.stat-label {
  font-size: 1.2rem;
  color: var(--gray-color);
  letter-spacing: 0.1em;
}

/* ================ 联系我们样式 ================ */
.contact-content {
  max-width: 600px;
  text-align: left;
}

/* 单个联系项目居中显示 */
.contact-content--single {
  max-width: 800px;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 200px;
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 1.5em;
  margin-bottom: 2.5em;
  padding: 1.5em;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 1em;
  backdrop-filter: blur(10px);
  transition: all 0.3s ease;
}

/* 大尺寸联系卡片 */
.contact-item--large {
  padding: 3em 4em;
  margin-bottom: 0;
  background: rgba(255, 255, 255, 0.1);
  border: 2px solid rgba(255, 255, 255, 0.2);
  border-radius: 2em;
  min-width: 500px;
  justify-content: center;
  align-items: center;
}

.contact-item:hover {
  background: rgba(255, 255, 255, 0.1);
  transform: translateX(10px);
}

.contact-item--large:hover {
  background: rgba(255, 255, 255, 0.15);
  border-color: rgba(148, 222, 29, 0.4);
  transform: translateY(-10px) scale(1.05);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4),
              0 0 40px rgba(148, 222, 29, 0.3);
}

.contact-icon {
  font-size: 2.5rem;
  line-height: 1;
  min-width: 2.5rem;
}

.contact-item--large .contact-icon {
  font-size: 4rem;
  min-width: 4rem;
}

.contact-details {
  flex: 1;
}

.contact-item--large .contact-details {
  text-align: left;
}

.contact-label {
  font-size: 1rem;
  color: var(--gray-color);
  margin-bottom: 0.5em;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.contact-item--large .contact-label {
  font-size: 1.3rem;
  margin-bottom: 0.8em;
}

.contact-value {
  font-size: 1.4rem;
  font-weight: 600;
  color: var(--white-color);
  letter-spacing: 0.05em;
}

.contact-item--large .contact-value {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  text-shadow: 0 0 20px rgba(148, 222, 29, 0.3);
}

/* 版权信息 */
.copyright {
  margin-top: 4em;
  text-align: center;
  padding-top: 2em;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.copyright p {
  font-size: 1rem;
  color: var(--gray-color);
  margin-bottom: 0.5em;
  letter-spacing: 0.05em;
}

.copyright-sub {
  font-size: 0.9rem;
  color: rgba(174, 180, 166, 0.7);
  font-style: italic;
}

.social-links {
  display: flex;
  justify-content: center;
  gap: 1.5em;
  margin-top: 3em;
  flex-wrap: wrap;
}

.social-link {
  padding: 0.8em 2em;
  color: var(--white-color);
  background: rgba(148, 222, 29, 0.2);
  border: 1.5px solid var(--green-color);
  border-radius: 2em;
  text-decoration: none;
  font-weight: 600;
  font-size: 1.1rem;
  letter-spacing: 0.1em;
  transition: all 0.3s ease;
  pointer-events: auto;
  -webkit-tap-highlight-color: transparent;
  user-select: none;
  -webkit-user-select: none;
}

.social-link:hover {
  background: var(--green-color);
  transform: translateY(-3px);
  box-shadow: 0 5px 15px rgba(148, 222, 29, 0.4);
}

/* ================ 最新动态/新闻样式 ================ */
.news-content {
  max-width: 1000px;
  width: 100%;
  padding: 0 1em;
}

.news-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2em;
  margin-top: 2em;
}

.news-card {
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 1.5em;
  padding: 2em;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
  text-align: left;
}

/* 毛玻璃卡片发光效果 */
.news-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(
    90deg,
    transparent,
    var(--green-color),
    transparent
  );
  opacity: 0;
  transition: opacity 0.4s ease;
}

.news-card:hover::before {
  opacity: 1;
}

.news-card:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(148, 222, 29, 0.3);
  transform: translateY(-8px) scale(1.02);
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.3),
              0 0 30px rgba(148, 222, 29, 0.2);
}

.news-date {
  display: inline-block;
  font-size: 0.9rem;
  color: var(--green-color);
  background: rgba(148, 222, 29, 0.15);
  padding: 0.4em 1em;
  border-radius: 2em;
  margin-bottom: 1em;
  font-weight: 600;
  letter-spacing: 0.05em;
}

.news-title {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--white-color);
  margin-bottom: 0.8em;
  line-height: 1.3;
  letter-spacing: 0.02em;
}

.news-desc {
  font-size: 1.05rem;
  color: var(--gray-color);
  line-height: 1.6;
  margin-bottom: 1.2em;
}

.news-link {
  display: inline-flex;
  align-items: center;
  color: var(--green-color);
  text-decoration: none;
  font-weight: 600;
  font-size: 1rem;
  letter-spacing: 0.05em;
  transition: all 0.3s ease;
  pointer-events: auto;
  -webkit-tap-highlight-color: transparent;
}

.news-link:hover {
  color: var(--white-color);
  transform: translateX(5px);
  text-shadow: 0 0 10px rgba(148, 222, 29, 0.5);
}

/* ================ 移动端适配 ================ */
@media screen and (max-width: 768px) {
  /* 调整根变量 */
  :root {
    --index: calc(1.2vw + 1.2vh);
  }

  /* 顶部导航栏 */
  .top-line {
    padding: 2em 0;
  }

  .row {
    flex-direction: column;
    gap: 1em;
  }

  .col--right {
    justify-content: center;
  }

  /* Logo */
  .logo img {
    width: 10em;
  }

  /* 主菜单 */
  .main-menu li > * {
    font-size: 1.1em;
    letter-spacing: 0.15em;
  }

  .main-menu li > *::before,
  .main-menu li > *::after {
    width: 8px;
    margin: 0 5px;
  }

  /* 按钮 */
  .button--top {
    font-size: 1.2rem;
    margin: 0;
    padding: 0.8em 1.8em;
  }

  .button--main {
    font-size: 1.2rem;
    padding: 0.9em 1.8em;
    margin-top: 2em;
  }

  /* 标题文字 */
  .header-content h1 {
    font-size: calc(var(--index) * 8);
    margin-bottom: 2rem;
  }

  /* 文字叠加效果调整 */
  .letters .letter {
    margin-left: calc(var(--index) * -2);
    right: calc(var(--index) * -2);
    text-shadow: 15px 0 25px rgba(0 0 0 / 0.4);
  }

  /* 内容段落 */
  .header-content p {
    font-size: 1.2rem;
    max-width: 90%;
    padding: 0 1em;
  }

  .header-bottom {
    min-height: 60px;
  }

  /* 关于我们页面 */
  .about-content {
    max-width: 100%;
    padding: 0 1em;
  }

  .about-content p {
    font-size: 1.2rem;
    margin-bottom: 0.8em;
  }

  .stats-grid {
    gap: 2em;
    margin-top: 2em;
  }

  .stat-number {
    font-size: 2.2rem;
  }

  .stat-label {
    font-size: 1rem;
  }

  /* 联系我们页面 */
  .contact-content {
    max-width: 100%;
    padding: 0 1em;
  }

  .contact-content--single {
    min-height: 150px;
  }

  .contact-item {
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 1em;
    margin-bottom: 2em;
    padding: 1.2em;
  }

  .contact-item--large {
    min-width: auto;
    width: 100%;
    padding: 2em 1.5em;
    flex-direction: column;
  }

  .contact-item:hover {
    transform: translateY(-5px);
  }

  .contact-item--large:hover {
    transform: translateY(-8px) scale(1.02);
  }

  .contact-icon {
    font-size: 2rem;
  }

  .contact-item--large .contact-icon {
    font-size: 3rem;
  }

  .contact-label {
    font-size: 0.9rem;
  }

  .contact-item--large .contact-label {
    font-size: 1.1rem;
  }

  .contact-value {
    font-size: 1.2rem;
  }

  .contact-item--large .contact-value {
    font-size: 1.5rem;
    word-break: break-all;
  }

  .contact-item--large .contact-details {
    text-align: center;
  }

  /* 版权信息 */
  .copyright {
    margin-top: 2.5em;
    padding-top: 1.5em;
  }

  .copyright p {
    font-size: 0.9rem;
  }

  .copyright-sub {
    font-size: 0.8rem;
  }

  .social-links {
    gap: 1em;
    margin-top: 2em;
  }

  .social-link {
    padding: 0.7em 1.5em;
    font-size: 1rem;
  }

  /* 新闻卡片 */
  .news-grid {
    grid-template-columns: 1fr;
    gap: 1.5em;
    margin-top: 1.5em;
  }

  .news-card {
    padding: 1.5em;
  }

  .news-date {
    font-size: 0.85rem;
  }

  .news-title {
    font-size: 1.2rem;
  }

  .news-desc {
    font-size: 1rem;
  }

  .news-link {
    font-size: 0.95rem;
  }
}

/* 小屏幕手机适配 */
@media screen and (max-width: 480px) {
  :root {
    --index: calc(1.4vw + 1.4vh);
  }

  .top-line {
    padding: 1.5em 0;
  }

  .logo img {
    width: 8em;
  }

  .main-menu li > * {
    font-size: 0.9em;
    letter-spacing: 0.1em;
  }

  .button--top {
    font-size: 1rem;
    padding: 0.7em 1.5em;
  }

  .button--main {
    font-size: 1rem;
    padding: 0.8em 1.5em;
  }

  .header-content h1 {
    font-size: calc(var(--index) * 6.5);
    margin-bottom: 1.5rem;
  }

  .header-content p {
    font-size: 1rem;
  }

  .stat-number {
    font-size: 1.8rem;
  }

  .stat-label {
    font-size: 0.9rem;
  }

  .contact-value {
    font-size: 1rem;
    word-break: break-all;
  }

  .contact-item--large {
    padding: 1.5em 1.2em;
  }

  .contact-item--large .contact-icon {
    font-size: 2.5rem;
  }

  .contact-item--large .contact-label {
    font-size: 1rem;
  }

  .contact-item--large .contact-value {
    font-size: 1.3rem;
  }

  /* 版权信息 */
  .copyright {
    margin-top: 2em;
    padding-top: 1.2em;
  }

  .copyright p {
    font-size: 0.85rem;
  }

  .copyright-sub {
    font-size: 0.75rem;
  }

  .social-link {
    padding: 0.6em 1.2em;
    font-size: 0.9rem;
  }

  /* 新闻卡片 */
  .news-card {
    padding: 1.2em;
  }

  .news-date {
    font-size: 0.8rem;
    padding: 0.35em 0.9em;
  }

  .news-title {
    font-size: 1.1rem;
  }

  .news-desc {
    font-size: 0.95rem;
  }

  .news-link {
    font-size: 0.9rem;
  }
}

/* 平板横屏适配 */
@media screen and (min-width: 769px) and (max-width: 1024px) {
  .header-content h1 {
    font-size: calc(var(--index) * 9);
  }

  .header-content p {
    font-size: 1.4rem;
  }

  .logo img {
    width: 13em;
  }

  .main-menu li > * {
    font-size: 1.3em;
  }
}