@charset "utf-8";
/* ---------- 基础 ---------- */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

html {
  font-size: clamp(10px, calc(100vw / 120), 18px);
}

body {
  background: #efeff5;
  font-family: 'Microsoft YaHei', '微软雅黑', 'PingFang SC', Arial, sans-serif;
  color: #333;
  -webkit-font-smoothing: antialiased;
}

a {
  text-decoration: none;
  color: inherit;
}

img {
  display: block;
  border: 0;
}

ul,
ol {
  list-style: none;
}

h1,
h2,
h3 {
  font-weight: normal;
  font-size: 100%;
}

.page {
  width: 100%;
  max-width: 120rem;
  margin: 0 auto;
  background: #efeff5;
  overflow: hidden;
}

/* =========================================================
   头部
   ========================================================= */
.header {
  position: relative;
  width: 100%;
}

/* 搜索框与导航的容器 */
.header-panel {
  display: block;
}

/* 汉堡按钮 */
.menu-toggle {
  display: none;
  position: absolute;
  right: 1.25rem;
  top: 1.25rem;
  width: 2.5rem;
  height: 2.5rem;
  padding: 0;
  border: 0;
  background: rgba(0, 40, 90, 0.45);
  border-radius: 0.375rem;
  cursor: pointer;
  z-index: 3;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.25rem;
}
.menu-toggle span {
  display: block;
  width: 1.25rem;
  height: 0.125rem;
  background: #fff;
  transition:
    transform 0.25s,
    opacity 0.25s;
}
.header.menu-open .menu-toggle span:nth-child(1) {
  transform: translateY(0.375rem) rotate(45deg);
}
.header.menu-open .menu-toggle span:nth-child(2) {
  opacity: 0;
}
.header.menu-open .menu-toggle span:nth-child(3) {
  transform: translateY(-0.375rem) rotate(-45deg);
}

/* ---------- 无障碍条 ---------- */
.access-bar {
  height: 1.8125rem;
  background: #f6f6f8;
}
.access-inner {
  width: 84.5rem;
  height: 1.8125rem;
  margin: 0 auto;
  padding-right: 0.6875rem;
  padding-bottom: 0.125rem;
  display: flex;
  align-items: center;
  justify-content: flex-end;
}
.access-item {
  display: flex;
  align-items: center;
  font-size: 1rem;
  line-height: 1rem;
  color: #333;
  cursor: pointer;
}
.access-inner > img {
  width: 1.25rem;
  height: 1.5rem;
  margin-right: 0.5625rem;
}
.access-inner > img:nth-of-type(2) {
  width: 1.1875rem;
  height: 1.3125rem;
  margin-left: 1.625rem;
}
.access-item:hover {
  color: #0059b1;
}

/* ---------- 大图 + 站名 + 搜索 ---------- */
.banner {
  position: relative;
  height: 17.875rem;
  overflow: hidden;
}

.banner-img {
  width: 100%;
  max-width: 120rem;
  height: 17.875rem;
  object-fit: cover;
}

.site-title {
  position: absolute;
  left: 18.4375rem;
  top: 4.6875rem;
  width: 24.3125rem;
  height: 3.9375rem;
}
.site-title img {
  display: block;
  width: 100%;
  height: 100%;
}

.site-title-text {
  display: none;
}

.search-box {
  position: absolute;
  left: 20.1875rem;
  top: 11.75rem;
  width: 20.75rem;
  height: 3.1875rem;
  background: #fff;
  border-radius: 0.375rem;
  box-shadow: 0 0.25rem 0.875rem rgba(0, 70, 140, 0.22);
}

.search-box:focus-within {
  box-shadow: 0 0 0 0.1875rem rgba(0, 89, 177, 0.55);
}
.search-input {
  width: 82%;
  height: 3.1875rem;
  padding: 0 3.875rem 0 0.875rem;
  border: 0;
  outline: none;
  background: transparent;
  border-radius: 0.375rem;
  font-size: 1rem;
  line-height: 3.1875rem;
  color: #666;
  font-family: inherit;
}
.search-input::placeholder {
  color: #999;
}

.search-btn {
  position: absolute;
  right: 0.0625rem;
  top: 0.125rem;
  width: 3.125rem;
  height: 3rem;
  padding: 0;
  border: 0;
  cursor: pointer;
  border-radius: 0.375rem;
  background: url(btn-search.png) no-repeat center;
  background-size: 3.125rem 3rem;
}

/* ---------- 导航 ---------- */
.nav {
  height: 4.0625rem;
  background: #0059b1;
}
.nav-list {
  width: 84.5rem;
  height: 4.0625rem;
  margin: 0 auto;
  display: flex;
}
.nav-list li {
  flex: 1;
  display: flex;
  justify-content: center;
}
.nav-list li a {
  width: 9.625rem;
  height: 4.0625rem;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.375rem;
  color: #fff;
  padding-bottom: 0.125rem;
  transition: background-color 0.25s;
}
.nav-list li a:hover {
  background: rgba(255, 255, 255, 0.12);
}
.nav-list li.active a {
  background: #d90b37;
  font-weight: 700;
}

/* =========================================================
   主体
   ========================================================= */
.main {
  width: 100%;
}

/* =========================================================
   内容区（栏目页）—— 白卡 + 面包屑 + 左栏 + 右列表
   ========================================================= */
.col-card {
  width: 84.5rem;
  margin: 2.75rem auto 4.25rem;
  padding: 1.5rem 0 2.5rem;
  background: #fff;
}

/* ---------- 面包屑 ---------- */
.crumb {
  display: flex;
  align-items: center;
  height: 1.6875rem;
}
.crumb-icon {
  width: 1.1875rem;
  height: 1.6875rem;
  margin-left: 2.5rem;
  margin-right: 0.75rem;
}
.crumb-text {
  font-size: 1rem;
  line-height: 1.6875rem;
  color: #333;
}
.crumb-text a {
  color: inherit;
  transition: color 0.2s;
}
.crumb-text a:hover {
  color: #0059b2;
}

/* ---------- 两栏容器 ---------- */
.col-wrap {
  display: flex;
  align-items: flex-start;
  margin-top: 1.5625rem;
  padding-left: 2.4375rem;
}

/* ---------- 左栏：快速导航 ---------- */
.side-nav {
  position: relative;
  width: 18rem;
}
.side-nav-head {
  position: relative;
  z-index: 1;
  width: 18rem;
  height: 8.5rem;
}
.side-nav-list {
  position: relative;
  margin-top: -0.25rem;
  padding-top: 0.5rem;
  background: linear-gradient(90deg, #efefef 0 0.375rem, #fff 0.375rem);
  box-shadow: -0.0506rem -0.0368rem 0.375rem rgba(0, 0, 0, 0.12);
}
.side-nav-item {
  position: relative;
  height: 3.75rem;
  font-size: 1.125rem;
  line-height: 1.875rem;
}
.side-nav-item > a {
  display: flex;
  align-items: flex-start;
  height: 100%;
  padding: 0.875rem 1.3125rem 0 2.875rem;
  color: #333;
  transition: color 0.2s;
}
.side-nav-item > a::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 0.375rem;
  background: rgba(35, 113, 183, 0);
  transition: background-color 0.2s;
}
.side-nav-item:not(.is-active) > a:hover::before {
  background: rgba(35, 113, 183, 0.18);
}
.side-nav-item > a:hover {
  color: #0059b2;
}
.side-nav-item > a:hover .side-arrow polyline {
  stroke: #2471b7;
}
.side-nav-item::after {
  content: '';
  position: absolute;
  left: 2.125rem;
  right: 1.3125rem;
  bottom: 0;
  height: 1px;
  background: #e5e5e5;
}
.side-arrow {
  width: 0.625rem;
  height: 1rem;
  margin-top: 0.5rem;
  margin-left: auto;
}
.side-arrow svg {
  display: block;
  width: 100%;
  height: 100%;
}
.side-arrow polyline {
  fill: none;
  stroke: #666;
  transition: stroke 0.2s;
  stroke-width: 2;
  stroke-linecap: butt;
  stroke-linejoin: miter;
}
.side-nav-item.is-active > a {
  font-weight: 700;
  color: #0059b2;
}
.side-nav-item.is-active .side-arrow polyline {
  stroke: #2471b7;
}
.side-nav-item.is-active::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  width: 0.375rem;
  height: 3.75rem;
  background: #2371b7;
}

/* 键盘焦点环 */
.crumb-text a:focus-visible,
.side-nav-item > a:focus-visible,
.art-link:focus-visible {
  outline: 0.125rem solid #0059b2;
  outline-offset: 0.125rem;
}

/* ---------- 右列表 ---------- */
.art-col {
  width: 59.125rem;
  margin-top: 1rem;
  margin-left: 2.5rem;
}
.art-list {
  display: flex;
  flex-direction: column;
  gap: 1.1875rem;
}
.art-item {
  background: #fff;
  border-radius: 0.25rem;
  box-shadow: 0 0 0.5rem rgba(0, 0, 0, 0.16);
  transition:
    box-shadow 0.2s,
    transform 0.2s;
}
.art-item:hover {
  box-shadow: 0 0.125rem 0.75rem rgba(0, 0, 0, 0.22);
  transform: translateY(-0.125rem);
}
.art-link {
  display: block;
  padding: 2rem 2rem 1.75rem;
}
.art-title {
  font-size: 1.125rem;
  line-height: 1.25rem;
  color: #333;
  transition: color 0.2s;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.art-title::after {
  content: '';
  display: block;
  width: 11.375rem;
  height: 1px;
  margin-top: 0.9375rem;
  background: #0059b2;
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 0.25s ease;
}
.art-link:hover .art-title::after,
.art-link:focus-visible .art-title::after {
  transform: scaleX(1);
}
.art-date {
  display: block;
  margin-top: 0.75rem;
  font-size: 1rem;
  line-height: 1.25rem;
  color: #999;
}
.art-link:hover .art-title {
  color: #0059b2;
}
/* =========================================================
   页脚
   ========================================================= */
.footer {
  width: 100%;
  height: 13.5rem;
  margin-top: 0.1875rem;
}

/* 友情链接 */
.footer-links {
  position: relative;
  height: 3.1875rem;
  background: #0165c9;
}
.footer-links-inner {
  position: absolute;
  left: 17.75rem;
  top: 0;
  height: 3.1875rem;
  display: flex;
  align-items: center;
}
.links-label {
  margin-left: 3.625rem;
  margin-right: 1.6875rem;

  font-size: 1.125rem;
  font-weight: 700;
  color: #fff;
}
.links-seg {
  position: relative;
  align-self: stretch;
  width: 17.3125rem;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  color: #fff;
}

.links-seg::before,
.links-seg:last-child::after {
  content: '';
  position: absolute;
  top: 0.75rem;
  width: 0.125rem;
  height: 1.9375rem;
  background: rgba(242, 249, 255, 0.212);
}
.links-seg::before {
  left: 0;
}

.links-seg:last-child::after {
  left: 100%;
}
.links-seg a {
  display: flex;
  align-items: center;
  color: #fff;
}
.links-seg a:hover {
  text-decoration: underline;
}
.arrow-down {
  display: inline-block;
  width: 0;
  height: 0;
  margin-left: 0.8125rem;
  border-left: 0.34375rem solid transparent;
  border-right: 0.34375rem solid transparent;
  border-top: 0.5rem solid #fff;
}

/* 版权信息 */
.footer-main {
  position: relative;
  height: 10.3125rem;
  background: #004c98;
}
.footer-text {
  position: absolute;
  left: 25.625rem;
  top: 1.9375rem;
  width: 36.5625rem;
  text-align: center;
  font-size: 1rem;
  line-height: 2.125rem;
  color: #fff;
}
.copy-line {
  white-space: nowrap;
}
.footer-badge-inline {
  display: inline-block;
  height: 1.25rem;
  vertical-align: -0.25rem;
  margin-right: 0.375rem;
  margin-left: -1.5rem;
}
.footer-badges .fb {
  position: absolute;
}
.fb-1 {
  left: 71.4375rem;
  top: 2.9375rem;
  width: 3.625rem;
  height: 4.5625rem;
}
.fb-2 {
  left: 77.25rem;
  top: 3.375rem;
  width: 7.4375rem;
  height: 3.6875rem;
}
.fb-3 {
  left: 86.875rem;
  top: 3.375rem;
  width: 7.5625rem;
  height: 3.6875rem;
}

/* =========================================================
   响应式 —— ≤61.25rem（平板 / 手机）
   ========================================================= */
@media (max-width: 980px) {
  html {
    font-size: 18px;
  }
  .page {
    width: 100%;
    overflow: visible;
  }

  .access-inner,
  .nav-list,
  .col-card {
    width: 100%;
    padding-left: 0.75rem;
    padding-right: 0.75rem;
  }

  .access-bar,
  .access-inner {
    height: 1.4375rem;
  }
  .access-inner {
    padding-right: 0.75rem;
  }
  .access-item {
    font-size: 0.8125rem;
  }
  .access-inner > img {
    width: 1rem;
    height: 1.1875rem;
    margin-right: 0.375rem;
  }
  .access-inner > img:nth-of-type(2) {
    width: 0.9375rem;
    height: 1.0625rem;
    margin-left: 0.875rem;
  }

  /* 头部 */
  .banner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: auto;
    min-height: 0;
    padding: 0.75rem 1rem;
    background: #0059b1;
    box-shadow: 0 0.125rem 0.375rem rgba(0, 45, 90, 0.2);
  }
  .banner-img {
    display: none;
  }

  .site-title {
    position: static;
    flex: 0 1 auto;
    width: auto;
    height: auto;
  }

  .site-title img {
    display: none;
  }
  .site-title-text {
    display: block;
    font-size: 1.75rem;
    line-height: 1.2;
    font-weight: 700;
    color: #fff;
    letter-spacing: 0.02em;
    white-space: nowrap;
  }

  .header .menu-toggle {
    display: flex;
    position: static;
    flex: 0 0 auto;
    margin-left: 0.5rem;
    background: rgba(255, 255, 255, 0.16);
  }

  /* 汉堡抽屉 */
  .header-panel {
    display: none;
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    z-index: 20;
    padding: 1rem 0 1.25rem;
    background: #0059b1;
    box-shadow: 0 1rem 0.75rem rgba(0, 30, 70, 0.3);
  }
  .header.menu-open .header-panel {
    display: block;
  }

  .search-box {
    position: relative;
    left: auto;
    top: auto;
    width: auto;
    height: 2.75rem;
    margin: 0 1rem 1rem;
    box-shadow: none;
  }
  .search-input {
    height: 2.75rem;
    line-height: 2.75rem;
  }
  .search-btn {
    width: 2.875rem;
    height: 2.75rem;
    background-size: 2.875rem 2.75rem;
    top: 0;
    right: 0;
  }

  .nav {
    height: auto;
    background: transparent;
  }
  .nav-list {
    width: 100%;
    height: auto;
    padding: 0;
    flex-direction: column;
  }
  .nav-list li {
    flex: none;
    width: 100%;
    justify-content: flex-start;
    border-top: 0.0625rem solid rgba(255, 255, 255, 0.14);
  }
  .nav-list li:last-child {
    border-bottom: 0.0625rem solid rgba(255, 255, 255, 0.14);
  }
  .nav-list li a {
    width: 100%;
    height: 2.875rem;
    padding-left: 1.25rem;
    justify-content: flex-start;
    font-size: 1rem;
    font-weight: 400;
  }
  .nav-list li a:hover {
    background: rgba(255, 255, 255, 0.1);
  }
  .nav-list li.active a {
    background: rgba(255, 255, 255, 0.18);
    font-weight: 700;
  }

  /* 内容区：≤980 左栏与列表改上下单列 */
  @media (max-width: 980px) {
    .col-card {
      margin: 0.75rem auto 1rem;
      padding: 0.75rem 0.75rem 1.5rem;
    }
    .crumb {
      height: auto;
      margin-bottom: 0.75rem;
    }
    .crumb-icon {
      width: 1rem;
      height: 1.375rem;
      margin-left: 0;
      margin-right: 0.5rem;
    }
    .crumb-text {
      font-size: 0.875rem;
      line-height: 1.375rem;
    }
    .col-wrap {
      display: block;
      margin-top: 0;
      padding-left: 0;
    }
    .side-nav {
      width: 100%;
    }
    .side-nav-list {
      display: none;
    }
    .side-nav-head {
      display: none;
    }
    .side-nav-list {
      margin-top: 0.75rem;
    }
    .side-nav-item {
      height: auto;
    }
    .side-nav-item > a {
      padding: 0.75rem 0.75rem 0.75rem 1rem;
    }
    .side-nav-item.is-active::before {
      top: 0;
      bottom: 0;
      height: auto;
    }
    .art-col {
      width: 100%;
      margin-top: 1.25rem;
      margin-left: 0;
    }
    .art-list {
      gap: 1rem;
    }
    .art-link {
      padding: 1.125rem 0.875rem;
    }
    .art-title {
      font-size: 1rem;
      line-height: 1.5rem;
      white-space: normal;
    }
    .art-title::after {
      margin-top: 0.625rem;
    }
    .art-date {
      margin-top: 0.625rem;
      font-size: 0.875rem;
    }
  }
  /* 页脚 */
  .footer {
    height: auto;
  }
  .footer-links {
    height: auto;
    padding: 0.5rem 0;
  }
  .footer-links-inner {
    position: static;
    height: auto;
    flex-wrap: wrap;
    row-gap: 0.25rem;
    padding: 0 0.75rem;
  }
  .links-label {
    margin-left: 0;
    margin-right: 0.5rem;
    font-size: 0.9375rem;
    line-height: 1.875rem;
  }
  .links-seg {
    width: auto;
    padding: 0 0.75rem;
    font-size: 0.875rem;
    line-height: 1.875rem;
  }
  .links-seg::before,
  .links-seg:last-child::after {
    top: 50%;
    margin-top: -0.4375rem;
    height: 0.875rem;
  }

  .links-seg:last-child::after {
    display: none;
  }
  .footer-main {
    height: auto;
    padding: 1rem 0.75rem 1.5rem;
  }
  .footer-text {
    position: static;
    width: auto;
    text-align: center;
    font-size: 0.8125rem;
    line-height: 1.5rem;
  }
  .copy-line {
    white-space: normal;
  }
  .footer-badge-inline {
    margin-left: 0;
  }

  .footer-badges {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: 0.75rem;
    margin-top: 0.75rem;
  }
  .footer-badges .fb {
    position: static;
    flex: 0 1 auto;
    width: auto;
    height: 2.5rem;
  }
}

/* ---------- ≤30rem 小屏 ---------- */
@media (max-width: 480px) {
  .site-title-text {
    font-size: 1.4375rem;
  }
  .search-box {
    margin: 0 0.75rem 1rem;
  }

  .crumb-text {
    font-size: 0.8125rem;
  }
  .side-nav-item {
    font-size: 1rem;
  }
  .art-title {
    font-size: 0.9375rem;
  }
}
/* =========================================================
   无障碍：系统开启「减弱动效」时，过渡与动画降到瞬时
   ========================================================= */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}