/* =========================================================
   山东艺术学院 合作发展中心 - 全站样式
   ========================================================= */
:root {
  --teal: #2bb3a8;
  --teal-dark: #1f948a;
  --teal-deep: #167a71;
  --blue: #2b8fd6;
  --blue-dark: #1e73b3;
  --orange: #f0852a;
  --orange-dark: #d66d12;
  --text-dark: #333;
  --text-mid: #666;
  --text-light: #999;
  --bg-gray: #f5f7fa;
  --border: #e6e6e6;
  --radius: 6px;
  --maxw: 1200px;
  --header-h: 88px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html, body { height: 100%; }
body {
  font-family: "Microsoft YaHei", "PingFang SC", "Helvetica Neue", Arial, sans-serif;
  color: var(--text-dark);
  background: #fff;
  line-height: 1.6;
  font-size: 14px;
}
a { text-decoration: none; color: inherit; }
ul, ol { list-style: none; }
img { max-width: 100%; display: block; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }
.clearfix::after { content: ""; display: table; clear: both; }

.container { width: var(--maxw); max-width: 100%; margin: 0 auto; padding: 0 20px; }

/* ---------------- Header ---------------- */
.site-header {
  position: relative;
  z-index: 100;
  background: #fff;
  border-bottom: 1px solid var(--border);
}
/* 首页：header 悬浮在 banner 之上，透明背景 */
.site-header.header-overlay {
  position: absolute;
  top: 0; left: 0; right: 0;
  background: transparent;
  border-bottom: none;
}
/* 首页菜单区顶部渐变背景 */
.site-header.header-gradient {
  background: linear-gradient(to bottom, rgba(0,0,0,.5), rgba(0,0,0,0));
}
.header-top {
  min-height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 0;
}
.header-right {
  display: flex; flex-direction: column; align-items: flex-end; gap: 4px;
}
.header-utils {
  display: flex; align-items: center; gap: 14px;
}
.util-btn {
  font-size: 12px; color: #fff; letter-spacing: 1px;
  border: 1px solid rgba(255,255,255,.8); padding: 3px 12px;
  white-space: nowrap; transition: all .25s;
}
.util-btn:hover { background: rgba(255,255,255,.15); }
.site-header:not(.header-overlay) .util-btn {
  color: var(--text-mid); border-color: #c9c9c9;
}
.site-header:not(.header-overlay) .util-btn:hover {
  background: #f2f4f5; color: var(--teal-deep);
}
.logo { display: flex; align-items: center; gap: 12px; }
.logo-img {
  width: 46px; height: 46px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--teal), var(--teal-deep));
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-weight: bold; font-size: 18px;
  flex-shrink: 0;
}
.logo-text { line-height: 1.2; }
.logo-text .cn { font-size: 18px; font-weight: bold; color: var(--teal-deep); letter-spacing: 1px; }
.logo-text .en { font-size: 10px; color: var(--text-light); letter-spacing: 1px; text-transform: uppercase; }

.site-header.header-overlay .logo-text .cn { color: #fff; }
.site-header.header-overlay .logo-text .en { color: rgba(255,255,255,.7); }

/* 顶部横版 logo 图片 */
.logo .logo-banner,
.footer-brand .logo-banner { height: 80px; width: auto; display: block; }
img.news-header-icon,
img.col-title-icon,
img.data-header-icon { object-fit: contain; }
.data-item .icon-wrap img { width: 100%; height: 100%; object-fit: contain; display: block; }

.nav-top { display: flex; align-items: center; gap: 16px; }
.nav-top .nav-list { display: flex; list-style: none; gap: 0; }
.nav-top .nav-list > li { position: relative; }
.nav-top .nav-link {
  display: block; padding: 12px 18px;
  font-size: 15px; color: var(--text-mid); position: relative;
  transition: color .3s;
}
.nav-top .nav-link:hover { color: var(--teal); }
.nav-top .nav-link::after {
  content: ""; position: absolute; left: 50%; bottom: 4px; width: 0; height: 2px;
  background: var(--teal); transition: all .3s; transform: translateX(-50%);
}
.nav-top .nav-link:hover::after,
.nav-top .nav-link.active::after { width: 60%; }
.nav-top .nav-link.active { color: var(--teal); }
.nav-top .nav-link .caret { font-size: 10px; margin-left: 3px; opacity: .7; }

.site-header.header-overlay .nav-top .nav-link { color: rgba(255,255,255,.9); }
.site-header.header-overlay .nav-top .nav-link:hover { color: #fff; }
.site-header.header-overlay .nav-top .nav-link.active { color: #fff; }
.site-header.header-overlay .nav-top .nav-link::after { background: #fff; }

/* 下拉菜单 */
.nav-dropdown {
  position: absolute; top: 100%; left: 0;
  list-style: none; background: #fff;
  min-width: 130px; box-shadow: 0 4px 16px rgba(0,0,0,.12);
  opacity: 0; visibility: hidden;
  transform: translateY(8px);
  transition: all .25s ease;
  z-index: 100;
}
.nav-list > li:hover .nav-dropdown {
  opacity: 1; visibility: visible; transform: translateY(0);
}
.nav-dropdown li a {
  display: block; padding: 10px 18px;
  font-size: 13px; color: var(--text-mid);
  border-bottom: 1px solid #f0f0f0;
  transition: all .2s;
}
.nav-dropdown li:last-child a { border-bottom: none; }
.nav-dropdown li a:hover { background: #f5f9f8; color: var(--teal); }

/* 汉堡菜单按钮（桌面端隐藏，手机端显示） */
.nav-toggle {
  display: none; width: 40px; height: 40px;
  background: transparent; border: none; cursor: pointer;
  flex-direction: column; justify-content: center; align-items: center;
  gap: 5px; padding: 0;
}
.nav-toggle span {
  display: block; width: 22px; height: 2px;
  background: var(--text-dark); transition: all .3s;
}
.site-header.header-overlay .nav-toggle span { background: #fff; }
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* 无边框搜索：图标 + 关键词 */
.search-box {
  display: flex; align-items: center; gap: 6px;
  background: transparent; border: none; padding: 0;
  color: var(--text-mid);
}
.search-box .search-btn {
  display: flex; align-items: center; color: inherit; padding: 0;
}
.search-box input {
  border: none; outline: none; background: transparent;
  width: 90px; font-size: 13px; color: var(--text-dark);
}
.search-box input::placeholder { color: var(--text-mid); }
.site-header.header-overlay .search-box { color: #fff; }
.site-header.header-overlay .search-box input { color: #fff; }
.site-header.header-overlay .search-box input::placeholder { color: rgba(255,255,255,.9); }
.header-utils .search-box { position: relative; }
.search-panel {
  position: absolute; top: calc(100% + 10px); right: 0;
  min-width: 180px; background: #fff;
  box-shadow: 0 6px 20px rgba(0,0,0,.15); border-radius: 4px;
  padding: 6px 0; display: none; z-index: 200;
}
.search-panel.show { display: block; }
.search-panel a {
  display: block; padding: 8px 16px;
  font-size: 13px; color: var(--text-dark);
  transition: all .2s;
}
.search-panel a:hover { background: #f2f8f7; color: var(--teal); }
.search-panel .search-empty {
  padding: 10px 16px; font-size: 13px; color: var(--text-light);
  white-space: nowrap;
}

/* ---------------- Banner ---------------- */
.banner {
  position: relative;
  width: 100%;
  height: 420px;
  background: url("https://trae-api-cn.mchost.guru/api/ide/v1/text_to_image?prompt=grand%20concert%20hall%20auditorium%20with%20stage%20piano%20and%20empty%20seats%20warm%20lighting&image_size=landscape_16_9") center/cover no-repeat;
}
.banner .banner-video {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  z-index: 0;
}
.banner::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(to bottom, rgba(0,0,0,.1), rgba(0,0,0,.35));
}
.banner .banner-text {
  position: absolute; top: 38%; left: 50%; transform: translate(-50%, -50%);
  color: #fff; z-index: 2; text-align: center;
}
.banner .banner-text h1 { font-size: 36px; font-weight: bold; letter-spacing: 4px; text-shadow: 0 2px 8px rgba(0,0,0,.5); }
.banner .banner-text p { margin-top: 10px; font-size: 16px; opacity: .9; letter-spacing: 2px; }

/* 内页 banner */
.page-banner {
  height: 220px;
  background: url("https://trae-api-cn.mchost.guru/api/ide/v1/text_to_image?prompt=university%20conference%20hall%20stage%20auditorium%20academic%20atmosphere&image_size=landscape_16_9") center/cover no-repeat;
  position: relative;
}
.page-banner::after {
  content: ""; position: absolute; inset: 0;
  background: rgba(0,0,0,.25);
}
.page-banner .banner-inner {
  height: 100%; position: relative; z-index: 2;
  display: flex; align-items: flex-end;
}
.banner-title-box {
  width: 260px;
  background: var(--teal); color: #fff;
  padding: 20px 28px;
  clip-path: polygon(0 0, calc(100% - 28px) 0, 100% 28px, 100% 100%, 0 100%);
}
.banner-title-box h2 { font-size: 24px; font-weight: bold; margin-bottom: 4px; }
.banner-title-box span { font-size: 12px; letter-spacing: 2px; opacity: .85; }

/* ---------------- Section 公共标题 ---------------- */
.section-title {
  text-align: center;
  margin-bottom: 36px;
}
.section-title h2 {
  font-size: 26px;
  color: var(--teal-deep);
  position: relative;
  display: inline-block;
  padding: 0 24px;
}
.section-title h2::before,
.section-title h2::after {
  content: ""; position: absolute; top: 50%; width: 40px; height: 1px;
  background: var(--teal); opacity: .5;
}
.section-title h2::before { right: 100%; }
.section-title h2::after { left: 100%; }
.section-title .en {
  display: block; font-size: 12px; color: var(--text-light);
  letter-spacing: 2px; margin-top: 6px; text-transform: uppercase;
}

/* ===================== 首页模块 ===================== */

/* 新闻动态 */
.news-section {
 /* background: linear-gradient(135deg, #426adc 0%, #4A72AD 100%); */
  background-color:#426adc;
  padding: 50px 0;
  color: #fff;
}

/* 新闻标题头 */
.news-header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 28px;
}
.news-header-left { display: flex; align-items: center; gap: 16px; }
.news-header-icon { width: 66px; height: 58px; fill: #fff; flex-shrink: 0; }
.news-header-text h2 { font-size: 34px; color: #fff; font-weight: 700; line-height: 1.1; }
.news-header-text span {
  display: block; font-size: 13px; color: rgba(255,255,255,.85);
  letter-spacing: 3px; margin-top: 4px;
}
.news-header-slash {
  width: 72px; height: 2px; background: rgba(255,255,255,.55);
  transform: rotate(-42deg); margin-left: 10px;
}
.news-header-more {
  font-size: 14px; color: rgba(255,255,255,.9);
  display: flex; align-items: center; gap: 6px; flex-shrink: 0;
}
.news-header-more span { font-size: 18px; line-height: 1; }
.news-header-more:hover { color: #fff; }

/* 主展示区：左图右文 */
.news-featured-row {
  display: grid; grid-template-columns: 1.3fr 1fr; gap: 30px;
  align-items: center;
}
.news-featured-img {
  width: 100%; height: 300px; border-radius: var(--radius);
  background-size: cover; background-position: center;
  transition: opacity .4s;
}
.news-featured-body .news-date {
  font-size: 13px; opacity: .8; margin-bottom: 10px;
}
.news-featured-body h3 {
  font-size: 20px; margin-bottom: 14px; line-height: 1.4;
}
.news-featured-body p {
  font-size: 14px; opacity: .85; line-height: 1.8;
}

/* 控制栏：箭头与正文左对齐，页码右对齐 */
.news-controls {
  display: flex; align-items: center; justify-content: space-between;
  margin-top: 20px;
}
.news-arrows { display: flex; gap: 10px; }
.news-arrow {
  width: 38px; height: 38px; border-radius: 50%;
  background: transparent; border: 1px solid rgba(255,255,255,.75);
  color: #fff; font-size: 18px;
  display: flex; align-items: center; justify-content: center;
  cursor: pointer; transition: background .3s;
  user-select: none;
}
.news-arrow:hover { background: rgba(255,255,255,.15); }
.news-arrow.disabled { opacity: .4; cursor: not-allowed; }
.news-page-num { font-size: 22px; font-weight: bold; letter-spacing: 1px; }
.news-page-num .cur { color: #fff; }
.news-page-num .total { color: rgba(255,255,255,.6); font-size: 16px; }

/* 缩略图行 */
.news-thumbs {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px;
  margin-top: 24px;
}
.news-thumb {
  display: grid; grid-template-columns: 1fr 1fr;
  background: #fff;
  border-radius: var(--radius);
  padding: 8px;
  gap: 8px;
  cursor: pointer; transition: box-shadow .3s, transform .3s;
  min-height: 90px;
}
.news-thumb:hover { box-shadow: 0 6px 16px rgba(0,0,0,.18); transform: translateY(-2px); }
.news-thumb.active { box-shadow: 0 0 0 2px var(--orange); }
.news-thumb-img {
  width: 100%; height: 100%; min-height: 74px;
  background-size: cover; background-position: center;
  border-radius: 4px;
}
.news-thumb-body {
  padding: 10px 12px;
  display: flex; flex-direction: column; justify-content: center;
  min-width: 0;
}
.news-thumb-body .news-date { font-size: 12px; color: var(--text-light); margin-bottom: 4px; }
.news-thumb-body h5 {
  font-size: 13px; color: var(--text-dark); font-weight: normal; line-height: 1.4;
  overflow: hidden; text-overflow: ellipsis;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical;
}

/* 党建工作 & 通知公告 */
.dual-section { padding: 50px 0; background: #fff; }
.dual-grid { display: grid; grid-template-columns: 2fr 1fr; gap: 40px; align-items: stretch; }
.dual-grid > div { display: flex; flex-direction: column; }
.dual-grid .party-cards { flex: 1; height: auto; }
.col-title {
  display: flex; align-items: center; gap: 12px;
  padding-bottom: 14px;
  margin-bottom: 20px;
}
.col-title-icon { flex-shrink: 0; color: var(--orange); }
.col-title.party .col-title-icon { width: 34px; height: 43px; }
.col-title.notice .col-title-icon { width: 47px; height: 43px; }
.col-title h3 { font-size: 24px; color: var(--orange); line-height: 1.2; font-weight: bold; }
.col-title small {
  display: block; font-size: 13px; color: var(--orange);
  letter-spacing: 2px; margin-top: 4px; font-weight: 500;
}
.col-title .more { margin-left: auto; font-size: 12px; color: var(--text-light); }
.col-title .more:hover { color: var(--teal); }

.col-more {
  text-align: right;
  margin-top: 18px;
}
.col-more a {
  display: inline-block;
  font-size: 13px;
  color: var(--orange);
  transition: color .3s;
}
.col-more a:hover { color: var(--orange-dark); }

.party-cards { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; height: 100%; }
.party-card {
  border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden;
  transition: box-shadow .3s, transform .3s;
  display: flex; flex-direction: column;
}
.party-card:hover { box-shadow: 0 6px 18px rgba(0,0,0,.1); transform: translateY(-3px); }
.party-card-img {
  height: auto; min-height: 200px;
  flex: 1 1 auto;
  background-size: cover; background-position: center;
}
.party-card-body { padding: 12px; flex: 0 0 auto; display: flex; flex-direction: column; }
.party-card-body h4 { font-size: 13px; margin-bottom: 6px; }
.party-card-body .date { font-size: 11px; color: var(--text-light); margin-bottom: 6px; }
.party-card-body p {
  font-size: 12px; color: var(--text-mid); line-height: 1.6;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}

.notice-list li {
  display: flex; align-items: center; gap: 12px;
  padding: 14px 0;
  border-bottom: 1px dashed var(--border);
}
.notice-list li:first-child { padding-top: 0; }
.notice-list li:last-child { border-bottom: none; }
.notice-tag {
  flex-shrink: 0; width: 50px; height: 50px; border-radius: 8px;
  text-align: center; color: #fff; padding: 6px 0;
  background: linear-gradient(135deg, var(--orange), var(--orange-dark));
}
.notice-tag .day { font-size: 18px; font-weight: bold; line-height: 1; }
.notice-tag .mon { font-size: 10px; opacity: .9; margin-top: 2px; }
.notice-body { flex: 1; min-width: 0; }
.notice-body h4 { font-size: 14px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.notice-body p { font-size: 12px; color: var(--text-light); margin-top: 3px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* 校友组织数据 */
.data-section {
  background: linear-gradient(135deg, var(--teal) 0%, var(--teal-deep) 100%);
  padding: 50px 0;
  color: #fff;
}

/* 数据标题头 */
.data-header { margin-bottom: 32px; display: flex; align-items: center; justify-content: center; }
.data-header-left { display: flex; align-items: center; gap: 16px; }
.data-header-icon { width: 74px; height: 62px; flex-shrink: 0; color: #fff; }
.data-header-icon circle,
.data-header-icon path:not([fill="none"]) { fill: currentColor; }
.data-header-icon path[fill="none"] { stroke: currentColor; }
.data-header-text h2 { font-size: 34px; color: #fff; font-weight: 700; line-height: 1.1; }
.data-header-text span {
  display: block; font-size: 13px; color: rgba(255,255,255,.85);
  letter-spacing: 3px; margin-top: 5px;
}
.data-header-slash {
  width: 72px; height: 2px; background: rgba(255,255,255,.55);
  transform: rotate(-42deg); margin-left: 10px;
}

.data-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px 30px; margin-bottom: 36px; }
.data-item {
  display: flex; flex-wrap: wrap; align-items: center; gap: 4px 12px;
  padding: 16px 14px;
  background: rgba(255,255,255,.1); border-radius: var(--radius);
}
.data-item .icon-wrap {
  width: 40px; height: 40px; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
}
.data-item .icon-wrap svg { width: 100%; height: 100%; fill: #fff; }
.data-item .num {
  font-size: 44px; font-weight: bold; line-height: 1;
  font-family: "Arial", sans-serif;
}
.data-item .label {
  flex: 0 0 calc(100% - 52px); margin-left: 52px;
  font-size: 14px; opacity: .9; margin-top: 2px;
}

/* 数据下方图片轮播 */
.data-gallery {
  position: relative;
  margin-top: 10px;
  padding-bottom: 30px;
  overflow: hidden;
}
.data-gallery-track {
  display: flex;
  gap: 20px;
  transition: transform .5s cubic-bezier(.25, .8, .25, 1);
  will-change: transform;
}
.gallery-card {
  flex: 0 0 calc((100% - 80px) / 3 - 24px);
  background: #fff; border-radius: var(--radius); overflow: hidden;
  transition: transform .3s;
  align-self: center;
  opacity: .85;
}
.gallery-card:hover { transform: translateY(-4px); }
.gallery-card.center {
  flex: 0 0 calc((100% - 80px) / 3 + 48px);
  margin: 0 14px;
  z-index: 2;
  opacity: 1;
  box-shadow: 0 0 30px rgba(255,255,255,.6), 0 12px 32px rgba(0,0,0,.3);
  filter: brightness(1.08);
}
.gallery-card.center:hover { transform: translateY(-4px); }
.gallery-card-img {
  height: 140px; background-size: cover; background-position: center;
}
.gallery-card.center .gallery-card-img { height: 200px; }
.gallery-card-body { padding: 12px 14px; }
.gallery-card-body h4 {
  font-size: 14px; color: var(--text-dark); margin-bottom: 6px;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.gallery-card-body span { font-size: 12px; color: var(--text-light); }
.data-gallery-controls {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 28px;
  padding: 0 4px;
}
.data-gallery-arrow {
  width: 36px; height: 36px; border-radius: 50%;
  background: transparent; border: 1px solid rgba(255,255,255,.75); color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-size: 20px; cursor: pointer; transition: background .3s;
  flex-shrink: 0;
}
.data-gallery-arrow:hover { background: rgba(255,255,255,.15); }
.data-gallery-more {
  text-align: center;
}
.data-gallery-more a { color: rgba(255,255,255,.8); font-size: 13px; }
.data-gallery-more a:hover { color: #fff; }

/* 知名校友 首页 */
.alumni-hp { padding: 50px 0; background: #fff; }
/* 知名校友标题头 */
.alumni-header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 32px;
}
.alumni-header-left { display: flex; align-items: center; gap: 14px; }
.alumni-header-icon {
  width: 52px; height: 52px; flex-shrink: 0; color: var(--orange);
  fill: none; stroke: currentColor; stroke-width: 2.6;
}
.alumni-header-text h2 { font-size: 34px; color: var(--orange); font-weight: 700; line-height: 1.1; }
.alumni-header-text span {
  display: block; font-size: 13px; color: var(--orange);
  letter-spacing: 3px; margin-top: 5px;
}
.alumni-header-slash {
  width: 68px; height: 2px; background: rgba(240,133,42,.5);
  transform: rotate(-42deg); margin-left: 8px;
}
.alumni-header-more {
  font-size: 14px; color: var(--orange);
  display: flex; align-items: center; gap: 6px; flex-shrink: 0;
}
.alumni-header-more span { font-size: 18px; line-height: 1; }
.alumni-header-more:hover { color: var(--orange-dark); }

.alumni-hp-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.alumni-card { text-align: center; }
.alumni-card .avatar {
  width: 198px; height: 198px; margin: 0 auto 16px; border-radius: 50%;
  background-size: cover; background-position: center;
  border: 4px solid #fff; box-shadow: 0 4px 14px rgba(0,0,0,.12);
  position: relative; overflow: hidden;
  transition: transform .35s ease;
  cursor: pointer;
}
.alumni-card .avatar:hover { transform: scale(1.08); }
.alumni-card .avatar .avatar-name {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-size: 20px; font-weight: bold;
  background: rgba(0,0,0,.45);
  border-radius: 50%;
  opacity: 0; transition: opacity .3s ease;
}
.alumni-card .avatar:hover .avatar-name { opacity: 1; }
.alumni-card h4 { font-size: 17px; margin-bottom: 6px; color: var(--text-dark); font-weight: 600; }
.alumni-card p {
  font-size: 12px; color: var(--text-light); line-height: 1.7;
  padding: 0 6px; margin-bottom: 12px;
  display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden;
}
.alumni-card .more-btn {
  display: inline-block;
  padding: 6px 22px;
  background: var(--orange);
  color: #fff;
  font-size: 12px;
  border-radius: 20px;
  letter-spacing: 1px;
  transition: background .3s;
}
.alumni-card .more-btn:hover { background: var(--orange-dark); }

/* 校友服务快速通道 */
.service-section {
  background: linear-gradient(135deg, var(--teal) 0%, var(--teal-deep) 100%);
  padding: 145px 0;
  color: #fff;
}
/* 服务通道标题盒 */
.service-header { display: flex; justify-content: center; margin-bottom: 32px; }
.service-header-box {
  display: flex; align-items: center; gap: 16px;
}
.service-header-icon {
  width: 62px; height: 62px; flex-shrink: 0;
  fill: none; stroke: #fff; stroke-width: 3;
}
.service-header-icon rect.fill { fill: #fff; stroke: none; }
.service-header-text h2 { color: #fff; font-size: 34px; font-weight: 700; line-height: 1.1; }
.service-header-text span {
  display: block; font-size: 13px; color: rgba(255,255,255,.85);
  letter-spacing: 3px; margin-top: 5px;
}
.service-header-slash {
  width: 72px; height: 2px; background: rgba(255,255,255,.55);
  transform: rotate(-42deg); margin-left: 10px;
}

.service-carousel {
  position: relative;
  display: flex; align-items: center; gap: 24px;
}
.service-viewport {
  overflow: hidden;
  flex: 1;
  min-width: 0;
}
.service-track {
  display: flex; gap: 46px;
  transition: transform .5s cubic-bezier(.25,.8,.25,1);
}
.service-item {
  flex: 0 0 calc((100% - 184px) / 5);
  text-align: center;
  cursor: pointer;
  transition: transform .3s;
}
.service-item:hover { transform: translateY(-4px); }
.service-icon {
  width: 121px; height: 121px; margin: 0 auto 18px; border-radius: 50%;
  background: #fff;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 4px 12px rgba(0,0,0,.12);
  transition: box-shadow .3s;
}
.service-icon svg {
  width: 70px; height: 70px;
  fill: var(--teal); stroke: none;
}
.service-icon img {
  width: 70px; height: 70px;
  object-fit: contain;
}
.service-icon svg .stroke { fill: none; stroke: var(--teal); }
.service-item:hover .service-icon { box-shadow: 0 6px 18px rgba(0,0,0,.2); }
.service-item span { font-size: 20px; }

.service-arrow {
  flex-shrink: 0;
  width: 53px; height: 53px; border-radius: 50%;
  background: rgba(255,255,255,.2); color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-size: 29px; cursor: pointer; transition: background .3s;
}
.service-arrow:hover { background: rgba(255,255,255,.35); }

/* 合作发展 */
.coop-section { padding: 50px 0; background: #fff; }
.coop-banner {
  display: grid; grid-template-columns: 1fr 2fr;
  overflow: hidden;
  min-height: 300px;
}
.coop-left {
  background: linear-gradient(135deg, var(--orange), var(--orange-dark));
  color: #fff; padding: 40px 36px;
  display: flex; flex-direction: column; justify-content: flex-start;
  position: relative;
}
.coop-title-row { display: flex; align-items: center; gap: 14px; margin-bottom: 12px; }
.coop-icon-img {
  width: 67px; height: 49px; flex-shrink: 0;
  object-fit: contain; display: block;
}
.coop-title-row h3 { font-size: 28px; font-weight: bold; line-height: 1; }
.coop-slash {
  width: 48px; height: 2px; background: rgba(255,255,255,.8);
  transform: rotate(-40deg); margin-left: 10px;
}
.coop-left .coop-en {
  font-size: 13px; letter-spacing: 1px; opacity: .9;
  line-height: 1.6; padding-left: 68px; max-width: 240px;
}
.coop-left .coop-more {
  position: absolute; bottom: 30px; left: 36px;
  font-size: 13px; color: rgba(255,255,255,.9);
}
.coop-left .coop-more:hover { color: #fff; }
.coop-right {
  position: relative; overflow: hidden;
  min-height: 300px;
}
.coop-main-img {
  width: 100%; height: 100%;
  background-size: cover; background-position: center;
  transition: transform .5s ease;
}
.coop-right:hover .coop-main-img { transform: scale(1.08); }
.coop-main-caption {
  position: absolute; bottom: 0; left: 0; right: 0;
  padding: 20px 24px;
  background: linear-gradient(to top, rgba(0,0,0,.7), transparent);
  color: #fff;
}
.coop-main-caption .cap-tag { font-size: 14px; font-weight: bold; margin-bottom: 4px; }
.coop-main-caption .cap-text { font-size: 12px; opacity: .9; }

.coop-gallery {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 0;
  margin-top: 0;
}
.coop-gallery-item {
  position: relative; overflow: hidden;
  aspect-ratio: 16/9;
  cursor: pointer;
}
.coop-gallery-img {
  width: 100%; height: 100%;
  background-size: cover; background-position: center;
  transition: transform .5s ease;
}
.coop-gallery-item:hover .coop-gallery-img { transform: scale(1.1); }
.coop-gallery-caption {
  position: absolute; bottom: 0; left: 0; right: 0;
  padding: 16px 18px;
  background: linear-gradient(to top, rgba(0,0,0,.65), transparent);
  color: #fff;
}
.coop-gallery-caption .cap-tag { font-size: 13px; font-weight: bold; margin-bottom: 3px; }
.coop-gallery-caption .cap-text { font-size: 11px; opacity: .9; }

/* ===================== 内页通用 ===================== */
.page-wrap { padding: 20px 0 60px; background: #fff; position: relative; z-index: 1; }
.page-grid { display: grid; grid-template-columns: 260px 1fr; gap: 36px; }

/* 侧边栏 */
.sidebar { margin-top: -20px; position: relative; z-index: 3; }
.sidebar .side-box {
  background: #f5f5f5; border-radius: 0;
  padding: 0;
  box-shadow: 0 2px 12px rgba(0,0,0,.08);
  border-left: 3px solid var(--teal);
}
.side-title {
  font-size: 20px; font-weight: bold; color: var(--teal-deep);
  padding-bottom: 10px; border-bottom: 2px solid var(--teal); margin-bottom: 14px;
}
.side-title small { display: block; font-size: 11px; color: var(--text-light); font-weight: normal; letter-spacing: 1px; }
.side-menu li { border-bottom: 1px solid #e8e8e8; }
.side-menu li:last-child { border-bottom: none; }
.side-menu li a {
  display: block; padding: 14px 20px; font-size: 14px;
  color: var(--text-mid); border-left: 3px solid transparent;
  margin-left: -3px;
  transition: all .3s;
}
.side-menu li a:hover,
.side-menu li a.active {
  background: #fff; color: var(--orange); border-left-color: var(--orange);
}

/* 面包屑 */
.breadcrumb {
  font-size: 13px; color: var(--text-light);
  padding-bottom: 14px; border-bottom: 1px solid var(--border); margin-bottom: 24px;
  display: flex; align-items: center; gap: 6px;
}
.breadcrumb a:hover { color: var(--teal); }
.breadcrumb .sep { color: #ccc; }
.breadcrumb .current { color: var(--text-mid); }

/* 主内容标题 */
.main-title {
  font-size: 22px; font-weight: bold; color: var(--teal-deep);
  padding-bottom: 12px; border-bottom: 2px solid var(--teal);
  margin-bottom: 24px;
}

/* 新闻列表 */
.news-list-page .news-row {
  display: flex; gap: 18px; padding: 20px 0;
  border-bottom: 1px solid var(--border);
  transition: background .3s;
}
.news-list-page .news-row:hover { background: #fafafa; }
.news-list-page .news-row-img {
  width: 180px; height: 120px; flex-shrink: 0; border-radius: 4px;
  background-size: cover; background-position: center;
}
.news-list-page .news-row-body { flex: 1; min-width: 0; }
.news-list-page .news-row-body h3 {
  font-size: 16px; margin-bottom: 10px; color: var(--text-dark);
  transition: color .3s;
}
.news-list-page .news-row:hover h3 { color: var(--teal); }
.news-list-page .news-row-body .meta {
  font-size: 12px; color: var(--text-light); margin-bottom: 8px;
}
.news-list-page .news-row-body .meta span { margin-right: 14px; }
.news-list-page .news-row-body p {
  font-size: 13px; color: var(--text-mid); line-height: 1.7;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}

/* 分页 */
.pagination {
  display: flex; justify-content: center; align-items: center; gap: 6px;
  margin-top: 36px;
}
.pagination a,
.pagination span {
  min-width: 32px; height: 32px; padding: 0 10px;
  display: inline-flex; align-items: center; justify-content: center;
  border: 1px solid var(--border); border-radius: 4px;
  font-size: 13px; color: var(--text-mid); background: #fff;
  transition: all .3s;
}
.pagination a:hover { border-color: var(--teal); color: var(--teal); }
.pagination .current {
  background: var(--teal); color: #fff; border-color: var(--teal);
}
.pagination .disabled { color: #ccc; cursor: not-allowed; }

/* 新闻详情 */
.article-head { text-align: center; padding: 10px 0 24px; border-bottom: 1px dashed var(--border); margin-bottom: 28px; }
.article-head h1 { font-size: 24px; color: var(--text-dark); margin-bottom: 14px; line-height: 1.4; }
.article-head .meta { font-size: 12px; color: var(--text-light); }
.article-head .meta span { margin: 0 10px; }
.article-content { font-size: 15px; line-height: 1.9; color: #444; }
.article-content p { margin-bottom: 18px; }
.article-content img { margin: 18px auto; border-radius: var(--radius); box-shadow: 0 2px 10px rgba(0,0,0,.08); }
.article-nav {
  display: flex; justify-content: space-between; gap: 20px;
  margin-top: 40px; padding-top: 20px; border-top: 1px solid var(--border);
}
.article-nav a {
  flex: 1; font-size: 13px; color: var(--text-mid);
  display: flex; align-items: center; gap: 8px;
  padding: 10px 14px; background: var(--bg-gray); border-radius: var(--radius);
  transition: background .3s;
}
.article-nav a:hover { background: var(--teal); color: #fff; }
.article-nav a.next { justify-content: flex-end; }

/* 知名校友页 */
.alumni-page { padding: 40px 0 60px; background: #fff; }
.alumni-page-header { text-align: center; margin-bottom: 40px; }
.alumni-page-header h2 { font-size: 26px; color: var(--teal-deep); margin-bottom: 6px; }
.alumni-page-header .en { font-size: 12px; color: var(--text-light); letter-spacing: 2px; }
.alumni-page-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 30px 24px; }

/* ---------------- Footer ---------------- */
.site-footer {
  background: linear-gradient(135deg, var(--teal) 0%, var(--teal-deep) 100%);
  color: #fff;
  position: relative;
  padding-top: 20px;
}
.wave-top {
  position: absolute; top: -1px; left: 0; width: 100%; height: 60px;
  overflow: hidden; line-height: 0;
  transform: rotate(180deg);
}
.wave-top svg { width: 200%; height: 60px; display: block; animation: wave-move 14s linear infinite; }

.footer-body { padding: 40px 0 30px; }
.footer-grid { display: grid; grid-template-columns: 1.3fr 1fr; gap: 40px; align-items: center; }

.footer-brand { display: flex; align-items: center; gap: 14px; margin-bottom: 20px; }
.footer-brand .logo-img {
  width: 56px; height: 56px; border-radius: 50%;
  background: rgba(255,255,255,.2); color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-size: 26px; font-weight: bold; flex-shrink: 0;
}
.brand-text .brand-cn { font-size: 20px; font-weight: bold; }
.brand-text .brand-sub { font-size: 16px; margin-left: 8px; font-weight: normal; }
.brand-text .brand-en { font-size: 11px; opacity: .7; letter-spacing: 1px; margin-top: 2px; }
.footer-info p { font-size: 13px; line-height: 2; opacity: .9; }

.footer-right { text-align: right; }
.footer-copy { font-size: 13px; opacity: .9; margin-bottom: 8px; }
.footer-links { font-size: 13px; margin-bottom: 16px; }
.footer-links a { color: #fff; opacity: .9; }
.footer-links a:hover { opacity: 1; }
.footer-links .sep { margin: 0 10px; opacity: .5; }

.footer-icons { display: flex; justify-content: flex-end; gap: 16px; margin-bottom: 16px; }
.footer-icon-box { text-align: center; position: relative; }
.footer-icon-box .ficon {
  width: 48px; height: 48px;
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 6px;
}
.footer-icon-box .ficon img {
  width: 30px; height: 30px;
  object-fit: contain; display: block;
}
.footer-icon-box span { font-size: 12px; opacity: .9; }

.footer-tip {
  position: absolute; bottom: calc(100% + 10px); left: 50%;
  transform: translateX(-50%) translateY(8px);
  background: #fff; border-radius: 8px; padding: 10px;
  box-shadow: 0 4px 16px rgba(0,0,0,.25);
  opacity: 0; visibility: hidden;
  transition: all .3s ease;
  z-index: 10;
  white-space: nowrap;
}
.footer-tip::after {
  content: ""; position: absolute; top: 100%; left: 50%;
  transform: translateX(-50%);
  border: 6px solid transparent; border-top-color: #fff;
}
.footer-tip img { width: 110px; height: 110px; display: block; }
.footer-tip.tip-text {
  padding: 8px 14px; font-size: 14px; color: #333;
  font-weight: bold;
}
.footer-icon-box:hover .footer-tip {
  opacity: 1; visibility: visible;
  transform: translateX(-50%) translateY(0);
}

.footer-buttons { display: flex; justify-content: flex-end; gap: 10px; }
.footer-select {
  padding: 7px 14px; border-radius: 4px; border: 1px solid rgba(255,255,255,.4);
  background: transparent; color: #fff; font-size: 13px; cursor: pointer;
  outline: none;
}
.footer-select option { color: #333; background: #fff; }

/* ---------------- 动画 ---------------- */
@keyframes wave-move {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}
.wave-top .wave-anim {
  animation: wave-move 12s linear infinite;
}

/* 数字滚动 */
.count-up { display: inline-block; }

/* 回到顶部 */
.back-top {
  position: fixed; right: 24px; bottom: 60px; width: 44px; height: 44px;
  background: var(--teal); color: #fff; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 18px; cursor: pointer; opacity: 0; visibility: hidden;
  transition: all .3s; z-index: 99;
  box-shadow: 0 4px 12px rgba(0,0,0,.15);
}
.back-top.show { opacity: 1; visibility: visible; }
.back-top:hover { background: var(--teal-deep); }

/* 响应式 */
@media (max-width: 992px) {
  .news-featured-row, .dual-grid, .coop-banner { grid-template-columns: 1fr; }
  .news-featured-img { height: 220px; }
  .news-thumbs { display: none; }
  .data-grid { grid-template-columns: repeat(2, 1fr); }
  .gallery { grid-template-columns: repeat(2, 1fr); }
  .coop-gallery { grid-template-columns: repeat(2, 1fr); }
  .data-gallery-track { gap: 16px; }
  .data-gallery-track .gallery-card { flex: 0 0 100%; opacity: 1; }
  .gallery-card.center { box-shadow: none; margin: 0; filter: none; flex: 0 0 100%; }
  .gallery-card .gallery-card-img, .gallery-card.center .gallery-card-img { height: 180px; }
  .alumni-hp-grid, .alumni-page-grid { grid-template-columns: repeat(2, 1fr); }
  .service-track .service-item { flex: 0 0 calc((100% - 92px) / 3); }
  .page-grid { grid-template-columns: 1fr; }
  .sidebar { display: none; }
  .banner-title-box { display: none; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .footer-right { text-align: center; }
  .footer-left { text-align: center; }
  .footer-brand { justify-content: center; }
  .footer-icons, .footer-buttons { justify-content: center; }
  .footer-info p { text-align: center; }
  .nav-toggle { display: flex; }
  .header-utils { display: none; }
  .search-box { display: none; }
  .nav-top {
    display: none;
    position: absolute; top: 100%; left: 0; right: 0;
    background: #fff; box-shadow: 0 6px 20px rgba(0,0,0,.12);
    max-height: calc(100vh - var(--header-h)); overflow-y: auto;
  }
  .nav-top.open { display: block; }
  .nav-top .nav-list { flex-direction: column; }
  .site-header.header-overlay .nav-top .nav-link,
  .nav-top .nav-link {
    color: var(--text-dark); padding: 14px 20px;
    border-bottom: 1px solid #f0f0f0;
  }
  .nav-top .nav-link::after { display: none; }
  .site-header.header-overlay .nav-top .nav-link:hover,
  .site-header.header-overlay .nav-top .nav-link.active,
  .nav-top .nav-link:hover,
  .nav-top .nav-link.active { color: var(--teal); }
  .site-header.header-overlay .nav-top .nav-link .caret,
  .nav-top .nav-link .caret {
    color: var(--text-mid); float: right; line-height: 20px; transition: transform .3s;
  }
  .nav-list > li.open > .nav-link .caret { transform: rotate(180deg); }
  /* 子菜单：手风琴展开 */
  .nav-dropdown {
    position: static; opacity: 1; visibility: visible; transform: none;
    box-shadow: none; display: none; min-width: 0; background: #f7f7f7;
  }
  .nav-list > li.open > .nav-dropdown { display: block; }
  .nav-dropdown li a { padding-left: 36px; }
}
@media (max-width: 600px) {
  .banner { height: 260px; }
  .banner .banner-text h1 { font-size: 22px; }
  .footer-body { padding: 24px 0; }
  .footer-brand { gap: 10px; margin-bottom: 14px; }
  .footer-brand .logo-img { width: 44px; height: 44px; font-size: 20px; }
  .brand-text .brand-cn { font-size: 17px; }
  .brand-text .brand-sub { font-size: 14px; }
  .footer-info p { font-size: 12px; line-height: 1.8; }
  .data-grid, .gallery, .alumni-hp-grid, .alumni-page-grid { grid-template-columns: 1fr; }
  .coop-gallery { grid-template-columns: 1fr; }
  .data-gallery-track .gallery-card { flex: 0 0 100%; opacity: 1; }
  .gallery-card.center { box-shadow: none; margin: 0; filter: none; flex: 0 0 100%; }
  .gallery-card .gallery-card-img, .gallery-card.center .gallery-card-img { height: 160px; }
  .service-track .service-item { flex: 0 0 calc((100% - 46px) / 2); }
}