/* ============================================================
   汉江师范学院保卫部（处）官网
   主色调：#015293 深蓝体系
   头部与页面版式保持统一的蓝色视觉体系
   全站统一：字体、字号、相对链接；大图随页面缩放且始终完全显示
   ============================================================ */
:root {
  --navy-dark: #103A66;
  --navy: #1A4F8B;
  --blue: #015293;
  --blue-light: #2E6DB5;
  --blue-pale: #ebf5fc;
  --blue-soft: #F4F7FB;
  --ink: #2D3748;
  --ink-soft: #5A6B80;
  --line: #e4e4e4;
  --white: #fff;
  --radius: 6px;
  --shadow: 0 2px 8px rgba(16, 42, 74, 0.08);
  --shadow-lg: 0 6px 18px rgba(16, 42, 74, 0.14);
  --header-h: 74px;
  --topbar-h: 36px;
  /* 全站统一字体 */
  --font: "Microsoft YaHei", "PingFang SC", "Hiragino Sans GB", "Source Han Sans SC", "Noto Sans CJK SC", "Helvetica Neue", Arial, sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
html, body { overflow-x: hidden; }
body {
  font-family: var(--font);
  /* 全站统一字号：1rem = 16px */
  font-size: 1rem;
  color: var(--ink);
  background: #fff;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
img { max-width: 100%; display: block; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }

.container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 20px; }

/* ============ 头部 ============ */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  color: #fff;
  transition: background-color .35s ease, box-shadow .35s ease;
}
.site-header.scrolled {
  background: rgba(26, 79, 139, 0.96);
  box-shadow: 0 2px 14px rgba(10, 42, 90, 0.32);
}

/* ============ 内页头部 ============ */
body.inner .site-header { border-top: 4px solid var(--blue); }
body.inner .site-header::before {
  content: "";
  position: absolute;
  top: 4px; left: 0; right: 0;
  height: 190px;
  background: linear-gradient(180deg, rgba(10, 42, 90, 0.66) 0%, rgba(10, 42, 90, 0.32) 55%, rgba(10, 42, 90, 0) 100%);
  pointer-events: none;
}
body.inner .site-header.scrolled::before { opacity: 0; }
body.inner .header-top { background: transparent; border-bottom-color: rgba(255, 255, 255, 0.22); }

/* 顶部信息条 */
.header-top {
  height: var(--topbar-h);
  background: rgba(16, 58, 102, 0.85);
  border-bottom: 1px solid rgba(255, 255, 255, 0.14);
  font-size: .8125rem;
  transition: background-color .35s ease;
}
.site-header.scrolled .header-top { background: rgba(16, 58, 102, 0.92); }
.header-top .container {
  display: flex; align-items: center; justify-content: space-between; height: 100%;
}
.ht-left { color: rgba(255, 255, 255, 0.92); letter-spacing: .3px; }
.ht-left b { font-weight: 600; color: #fff; }
.ht-right { display: flex; align-items: center; gap: 16px; }
.ht-right a { color: rgba(255, 255, 255, 0.95); transition: color .2s; }
.ht-right a:hover { color: #ffd76a; }

/* 搜索框 */
.search-form { display: flex; align-items: center; }
.search-form input {
  width: 168px; height: 24px; padding: 0 10px;
  border: 1px solid rgba(255, 255, 255, 0.45);
  border-radius: 12px 0 0 12px;
  background: rgba(255, 255, 255, 0.14);
  color: #fff; font-size: .75rem; outline: none;
}
.search-form input::placeholder { color: rgba(255, 255, 255, 0.75); }
.search-form button {
  height: 24px; width: 30px;
  border-radius: 0 12px 12px 0;
  background: #fff;
  display: flex; align-items: center; justify-content: center;
  color: var(--navy);
  transition: background .2s;
}
.search-form button:hover { background: #ffd76a; }
.search-form button svg { width: 13px; height: 13px; }

/* 主头部：logo + 导航 */
.header-main { height: var(--header-h); }
.header-main .container {
  display: flex; align-items: center; justify-content: space-between; height: 100%;
}
.brand { display: flex; align-items: center; gap: 14px; }
.brand .brand-logo {
  width: 48px; height: 48px;
  border-radius: 50%; overflow: hidden;
  background: #fff;
  box-shadow: 0 1px 5px rgba(0, 0, 0, 0.18);
  flex-shrink: 0;
}
.brand .brand-logo img { width: 100%; height: 100%; object-fit: contain; }
.brand-text strong {
  display: block; font-size: 1.3rem; font-weight: 700; letter-spacing: 1px; line-height: 1.25;
  text-shadow: 0 1px 4px rgba(0, 0, 0, 0.45);
}
.brand-text em {
  display: block; font-style: normal; font-size: .66rem;
  letter-spacing: 3.2px; color: rgba(255, 255, 255, 0.88);
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.45);
}

/* 导航菜单（菜单内容与链接统一使用相对链接） */
.main-nav { display: flex; }
.nav-menu { display: flex; align-items: center; }
.nav-menu > li { position: relative; }
.nav-menu > li > a {
  position: relative; display: block;
  padding: 8px 13px;
  color: rgba(255, 255, 255, 0.96);
  font-size: .92rem; font-weight: 500; letter-spacing: .6px;
  white-space: nowrap;
  transition: background-color .25s, color .25s;
}
.nav-menu > li > a::after {
  content: ""; position: absolute; left: 14px; right: 14px; bottom: 3px;
  height: 2px; background: #ffd76a;
  transform: scaleX(0); transform-origin: left center;
  transition: transform .3s ease;
}
.nav-menu > li:hover > a, .nav-menu > li.active > a { color: #fff; }
.nav-menu > li:hover > a::after, .nav-menu > li.active > a::after { transform: scaleX(1); }
.nav-menu .arrow { font-size: .7rem; margin-left: 2px; opacity: .85; }

/* 下拉子菜单 */
.nav-sub {
  position: absolute; top: 100%; left: 0; min-width: 150px;
  background: rgba(26, 79, 139, 0.97);
  border-radius: 0 0 var(--radius) var(--radius);
  box-shadow: 0 8px 20px rgba(10, 42, 90, 0.3);
  padding: 6px 0;
  opacity: 0; visibility: hidden; transform: translateY(8px);
  transition: opacity .25s ease, transform .25s ease, visibility .25s;
}
.nav-menu > li:hover .nav-sub { opacity: 1; visibility: visible; transform: translateY(0); }
.nav-sub a {
  display: block; padding: 8px 18px;
  color: rgba(255, 255, 255, 0.94); font-size: .85rem;
  transition: background-color .2s, padding-left .2s;
}
.nav-sub a:hover { background: rgba(255, 255, 255, 0.12); padding-left: 24px; color: #fff; }

/* 汉堡按钮（移动端） */
.menu-btn {
  display: none;
  align-items: center; gap: 6px;
  color: #fff; font-size: .9rem;
  border: 1px solid rgba(255, 255, 255, 0.5);
  border-radius: var(--radius);
  padding: 6px 12px;
}
.menu-btn .bar { display: block; width: 16px; height: 2px; background: #fff; margin: 3px 0; }

/* ============ Hero 压题大图（1920×960，随页面缩放且始终完全显示） ============
   容器宽高比与大图一致（2:1），background-size: cover 不会裁切，
   页面缩放时高度按宽度等比变化，图片始终完整显示。 */
.hero {
  position: relative;
  width: 100%;
  aspect-ratio: 2 / 1;
  overflow: hidden;
  background: var(--navy-dark);
}
.hero-slides { position: absolute; inset: 0; }
.hero-slide {
  position: absolute; inset: 0;
  background-size: cover; background-position: center;
  opacity: 0;
  transition: opacity 1.1s ease;
}
.hero-slide.active { opacity: 1; }
/* 压暗渐变，保证文字与指示点可读 */
.hero::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(10, 42, 90, 0.22) 0%, rgba(10, 42, 90, 0.05) 40%, rgba(10, 42, 90, 0.32) 100%);
  pointer-events: none;
}

/* ============ 内页头部 ============
   头部区域完全以 list-banner.jpg（1920×560）为背景，区域宽高比与图片一致（1920:560），
   任意宽度下 cover 均完整显示不裁切；导航悬浮压图；
   栏目名白字大字叠于图面（白字大字、左对齐、叠于图面下方，无英文无横线）。 */
.hero.hero-page { aspect-ratio: 1920 / 560; }
.hero.hero-page .hero-slide {
  background-size: cover;
  background-repeat: no-repeat;
  background-position: center;
}
.hero.hero-page::after { background: linear-gradient(180deg, rgba(10, 42, 90, 0.5) 0%, rgba(10, 42, 90, 0.14) 30%, rgba(10, 42, 90, 0.05) 55%, rgba(10, 42, 90, 0.42) 100%); }
.hero.hero-page .hero-arrow,
.hero.hero-page .hero-dots { display: none; }
/* 栏目名叠图 */
.hero-cap {
  position: absolute;
  left: 50%; transform: translateX(-50%);
  width: 100%; max-width: 1200px;
  bottom: 20%;
  padding: 0 20px;
  color: #fff;
  pointer-events: none;
}
.hero-cap .cap-cn {
  display: inline-block;
  font-size: 2.6rem;
  font-weight: 700;
  letter-spacing: 8px;
  text-indent: 8px;
  line-height: 1.35;
  text-shadow: 0 2px 14px rgba(0, 0, 0, 0.5);
}
/* 轮播箭头 */
.hero-arrow {
  position: absolute; top: 50%; transform: translateY(-50%);
  width: 46px; height: 46px; border-radius: 50%;
  background: rgba(255, 255, 255, 0.18);
  color: #fff; font-size: 1.5rem; line-height: 1;
  display: flex; align-items: center; justify-content: center;
  z-index: 3;
  border: 1px solid rgba(255, 255, 255, 0.35);
  transition: background-color .25s, border-color .25s;
}
.hero-arrow:hover { background: rgba(26, 79, 139, 0.75); border-color: rgba(255, 255, 255, 0.6); }
.hero-arrow.prev { left: 22px; }
.hero-arrow.next { right: 22px; }
/* 指示按钮：短横线 */
.hero-dots {
  position: absolute; left: 0; right: 0; bottom: 22px;
  display: flex; justify-content: center; gap: 10px; z-index: 3;
}
.hero-dots .dot {
  width: 28px; height: 4px; border-radius: 2px;
  background: rgba(255, 255, 255, 0.45);
  cursor: pointer;
  transition: background-color .3s, width .3s;
}
.hero-dots .dot.active { background: #fff; width: 44px; }

/* ============ 通用区块 ============ */
.section { padding: 52px 0; }
.section.alt { background: var(--blue-soft); }

/* 区块标题：中文 + 英文副标题 + 更多 */
.sec-title {
  display: flex; align-items: flex-end; justify-content: space-between;
  margin-bottom: 30px;
  border-bottom: 2px solid var(--line);
  padding-bottom: 10px;
}
.sec-title .st-cn {
  position: relative;
  font-size: 1.65rem; font-weight: 700; color: var(--blue);
  padding-left: 16px; line-height: 1.3;
}
.sec-title .st-cn::before {
  content: ""; position: absolute; left: 0; top: 4px; bottom: 4px;
  width: 5px; background: var(--blue); border-radius: 3px;
}
.sec-title .st-en {
  margin-left: 14px; font-size: 1.05rem;
  color: rgba(0, 0, 0, 0.18); letter-spacing: 2px; text-transform: uppercase;
  line-height: 1.3;
}
.sec-title .more {
  flex-shrink: 0;
  margin-bottom: 2px;
  padding: 4px 18px;
  background: var(--line);
  color: #666;
  font-size: .82rem;
  border-radius: 20px;
  transition: background-color .25s, color .25s;
}
.sec-title .more:hover { background: var(--blue); color: #fff; }

/* 居中区块标题（服务办理）：两侧渐变短线装饰 */
.sec-title.center {
  justify-content: center;
  border-bottom: none;
  padding-bottom: 0;
  margin-bottom: 36px;
}
.sec-title.center > div {
  display: flex; align-items: center;
  padding: 0 60px;
  position: relative;
}
.sec-title.center > div::before,
.sec-title.center > div::after {
  content: ""; position: absolute; top: 50%;
  width: 44px; height: 2px;
  transform: translateY(-50%);
}
.sec-title.center > div::before {
  right: 100%; margin-right: 16px;
  background: linear-gradient(270deg, var(--blue), rgba(1, 82, 147, 0));
}
.sec-title.center > div::after {
  left: 100%; margin-left: 16px;
  background: linear-gradient(90deg, var(--blue), rgba(1, 82, 147, 0));
}
.sec-title.center .st-cn { padding-left: 0; }
.sec-title.center .st-cn::before { display: none; }

/* ============ 服务办理（居中展示，卡片） ============ */
.services { background: linear-gradient(180deg, #fff 0%, var(--blue-soft) 100%); }
.services-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 24px;
}
.service-card {
  width: 272px;
  background: #fff;
  border-radius: var(--radius);
  border-top: 3px solid var(--navy);
  box-shadow: var(--shadow);
  padding: 30px 24px 24px;
  text-align: center;
  position: relative;
  overflow: hidden;
  transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease;
}
.service-card::after {
  content: ""; position: absolute; left: 0; right: 0; top: 0; height: 3px;
  background: linear-gradient(90deg, var(--navy), var(--blue-light), #7FB3E8);
  transform: scaleX(0); transform-origin: left;
  transition: transform .35s ease;
}
.service-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-top-color: transparent; }
.service-card:hover::after { transform: scaleX(1); }
.service-icon {
  width: 66px; height: 66px; margin: 0 auto 16px;
  background: linear-gradient(145deg, rgba(26, 79, 139, 0.12), rgba(46, 110, 181, 0.04));
  border: 1px solid rgba(26, 79, 139, 0.14);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  color: var(--navy);
  transition: transform .3s ease, color .3s ease, border-color .3s ease;
}
.service-card:hover .service-icon {
  transform: translateY(-2px) scale(1.06);
  color: var(--blue-light);
  border-color: rgba(46, 110, 181, 0.35);
}
.service-icon svg { width: 32px; height: 32px; stroke-width: 1.7; }
.service-card h3 { font-size: 1.15rem; color: var(--ink); margin-bottom: 8px; }
.service-card .desc { font-size: .82rem; color: var(--ink-soft); line-height: 1.55; margin-bottom: 12px; min-height: 40px; }
.service-phones {
  font-size: .76rem; color: var(--ink-soft); line-height: 1.8; margin-bottom: 18px;
  text-align: left; padding-left: 10px;
  border-left: 2px solid var(--blue-pale);
}
.btn-detail {
  display: inline-block;
  padding: 7px 24px;
  background: var(--navy);
  color: #fff;
  border-radius: 20px;
  font-size: .86rem;
  transition: background-color .25s, box-shadow .25s;
}
.btn-detail:hover { background: var(--blue-light); box-shadow: 0 4px 12px rgba(46, 110, 181, 0.35); }

/* ============ 新闻动态 / 通知公告 / 警示教育 / 视频资料（汉江师范 hjnu 版式） ============ */
.hj-row { padding: 52px 0; }
.hj-row1 { padding: 55px 0 48px; }
.hj-row4, .hj-row2 {
  background: url(../images/hjnu/row4-bg.png) no-repeat center top / cover;
}
.hj-row2 { background-image: url(../images/hjnu/row2-bg.png); }
.hj-cols { display: flex; gap: 40px; }
.hj-row1 .hj-left { width: 63%; }
.hj-row1 .hj-right { width: 32%; }
.hj-row4 .hj-left, .hj-row4 .hj-right,
.hj-row2 .hj-left, .hj-row2 .hj-right { width: 48.5%; }
.hj-cols > .hj-left, .hj-cols > .hj-right { min-width: 0; }

/* 区块小标题（CSS 图标 + 蓝色标题 + 下划线） */
.hj-title {
  display: flex; align-items: flex-end; justify-content: space-between;
  border-bottom: 2px solid var(--blue);
  padding-bottom: 8px;
  margin-bottom: 26px;
}
.hj-title .cn {
  display: flex; align-items: center;
  font-size: 1.5rem; font-weight: 700; color: var(--blue);
  line-height: 35px;
}
/* 区块标题图标 */
.ti-ico {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 37px;
  height: 37px;
  margin-right: 12px;
  flex-shrink: 0;
  background: rgba(1, 82, 147, 0.08);
  border-radius: 8px;
}
.ti-ico svg {
  width: 20px;
  height: 20px;
  fill: none;
  stroke: var(--blue);
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

/* 更多按钮 */
.hj-more {
  flex-shrink: 0;
  width: 81px; height: 26px; line-height: 26px;
  text-align: center;
  background: #e4e4e4;
  border-radius: 20px;
  font-size: .82rem; color: #777;
  margin-bottom: 4px;
  transition: background-color .25s, color .25s;
}
.hj-more:hover { background: var(--blue); color: #fff; }

/* 新闻配图（2 图并排） */
.news-pic {
  display: flex; gap: 20px;
  padding-bottom: 22px;
  border-bottom: 1px solid #dfdfdf;
  margin-bottom: 4px;
}
.np-card { flex: 1; min-width: 0; display: block; }
.np-card .np-pic {
  display: block; width: 100%; padding-bottom: 56%;
  background-size: cover; background-position: center;
  border-radius: var(--radius);
  position: relative; overflow: hidden;
  transition: transform .45s ease;
}
.np-card:hover .np-pic { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.np-card .np-tit {
  display: block; margin-top: 10px;
  font-size: .94rem; color: #333;
  text-align: center;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
  transition: color .2s;
}
.np-card:hover .np-tit { color: var(--blue); }

/* 新闻文字列表 */
.news-text { margin-top: 14px; }
.news-text li { border-bottom: 1px dashed #e2e2e2; }
.news-text li a {
  display: flex; align-items: center; gap: 14px;
  padding: 13px 2px 13px 16px;
  position: relative;
}
.news-text li a::before {
  content: ""; position: absolute; left: 0; top: 50%;
  width: 6px; height: 6px;
  background: var(--blue);
  transform: translateY(-50%);
}
.news-text .nt-tit {
  flex: 1; min-width: 0;
  font-size: .94rem; color: #333;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
  transition: color .2s;
}
.news-text .nt-date {
  flex-shrink: 0;
  font-size: .8rem; color: #888;
  font-family: Arial, Helvetica, sans-serif;
}
.news-text li a:hover .nt-tit { color: var(--blue); }
.news-text li a:hover { padding-left: 22px; }

/* 通知公告：大日期块 + 两行标题 */
.index-tzgg li { border: 1px solid #dddddd; margin-bottom: 14px; overflow: hidden; transition: box-shadow .25s; }
.index-tzgg li:hover { box-shadow: var(--shadow); }
.index-tzgg li a { display: flex; align-items: stretch; }
.index-tzgg .tz-date {
  flex-shrink: 0;
  width: 71px;
  background: var(--blue);
  text-align: center;
  font-family: Arial, Helvetica, sans-serif;
}
.index-tzgg .tz-date b {
  display: block; line-height: 40px;
  font-size: 1.5rem; color: var(--blue);
  background: var(--blue-pale);
}
.index-tzgg .tz-date span {
  display: block; line-height: 24px;
  font-size: .7rem; color: #fff;
}
.index-tzgg .tz-text {
  flex: 1; min-width: 0;
  display: -webkit-box; -webkit-box-orient: vertical; -webkit-line-clamp: 2;
  overflow: hidden;
  padding: 12px 14px;
  font-size: .92rem; color: #333; line-height: 1.5;
  transition: color .2s;
}
.index-tzgg li a:hover .tz-text { color: var(--blue); }

/* 通用日期+标题列表（安全警示 / 政策法规）
   正常与悬停效果 index2 中 .index-sfkn 对应区域：
   - 正常：行高55px、蓝色日期+右侧分隔线、标题单行省略、浅灰下边框
   - 悬停：整行右移10px、日期与标题加粗变蓝、下边框变蓝 */
.hj-sfkn li {
  line-height: 55px;
  border-bottom: 1px solid #dddddd;
}
.hj-sfkn li a {
  display: block;
  position: relative;
  overflow: hidden;
}
.hj-sfkn .sf-date {
  float: left;
  font-family: Arial, Helvetica, sans-serif;
  color: #015293;
  font-size: .875rem;
}
.hj-sfkn .sf-date::after {
  content: "";
  width: 2px;
  height: 14px;
  background: #015293;
  position: absolute;
  left: 86px;
  top: 50%;
  margin-top: -7px;
}
.hj-sfkn .sf-tit {
  float: right;
  width: calc(100% - 107px);
  font-size: 1rem;
  color: #333333;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.hj-sfkn li:hover {
  border-bottom: 1px solid #015293;
}
.hj-sfkn li:hover a {
  transform: translateX(10px);
}
.hj-sfkn li:hover .sf-date {
  font-weight: bold;
}
.hj-sfkn li:hover .sf-tit {
  color: #015293;
  font-weight: bold;
}

/* 视频资料：标题 + 更多 + 缩略图 */
.hj-video-head {
  position: relative;
  display: flex; justify-content: center;
  margin-bottom: 30px;
}
.hj-video-head .hj-more {
  position: absolute; right: 0; top: 50%;
  transform: translateY(-50%);
}
.video-thumbs {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 18px;
}
.video-thumbs.cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.vt-card {
  display: block;
  background: #fff;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform .3s ease, box-shadow .3s ease;
}
.vt-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); }
.vt-card .vt-imgwrap { position: relative; display: block; overflow: hidden; background: var(--navy-dark); }
.vt-card img { width: 100%; height: 128px; object-fit: cover; transition: transform .5s ease; }
.vt-card:hover img { transform: scale(1.07); }
.vt-card .vt-mask {
  position: absolute; inset: 0;
  background: rgba(10, 42, 90, 0.28);
  transition: background-color .3s;
}
.vt-card:hover .vt-mask { background: rgba(10, 42, 90, 0.06); }
.vt-card .play {
  position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%);
  width: 42px; height: 42px; border-radius: 50%;
  background: rgba(255, 255, 255, 0.9);
  display: flex; align-items: center; justify-content: center;
  color: var(--navy);
  transition: transform .3s;
}
.vt-card:hover .play { transform: translate(-50%, -50%) scale(1.12); }
.vt-card .play svg { width: 18px; height: 18px; margin-left: 2px; }
.vt-card .vt-tit {
  display: block;
  padding: 10px 10px;
  font-size: .82rem; color: #333;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
  transition: color .2s;
}
.vt-card:hover .vt-tit { color: var(--blue); }

/* 视频网格 */
.video-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 26px 24px;
  margin-bottom: 30px;
}
.video-grid li { min-width: 0; }
.video-grid a { display: block; text-align: center; }
.video-grid .vg-img {
  position: relative;
  border-radius: 8px;
  overflow: hidden;
  background: #eef1f6;
  aspect-ratio: 1.618 / 1;
}
.video-grid .vg-img img {
  display: block;
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform .5s ease;
}
.video-grid a:hover .vg-img img { transform: scale(1.06); }
.video-grid .vg-play {
  position: absolute; inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(10, 42, 90, 0.16);
  transition: background-color .3s;
}
.video-grid .vg-play svg {
  width: 54px; height: 54px;
  padding: 11px;
  box-sizing: border-box;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.92);
  color: var(--blue);
  box-shadow: 0 4px 16px rgba(10, 42, 90, 0.28);
  transition: transform .3s, background-color .3s, color .3s;
}
.video-grid a:hover .vg-play svg { transform: scale(1.12); background: var(--blue); color: #fff; }
.video-grid .vg-tit {
  display: block;
  margin-top: 12px;
  font-size: 1rem;
  color: #323232;
  line-height: 1.6;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
  transition: color .3s;
}
.video-grid a:hover .vg-tit { color: var(--blue); }
@media (max-width: 900px) {
  .video-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .hero.hero-page { height: 460px; }
  .hero-cap { bottom: 16%; }
  .hero-cap .cap-cn { font-size: 2rem; letter-spacing: 6px; text-indent: 6px; }
}
@media (max-width: 600px) {
  .video-grid { grid-template-columns: 1fr; }
}

/* ============ 内页（列表 / 详情 / 视频） ============ */
/* 面包屑 */
.breadcrumb {
  position: relative;
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--blue);
  color: #fff;
  height: 46px;
  padding: 0 22px;
  margin-bottom: 30px;
  font-size: .95rem;
  box-shadow: 0 3px 12px rgba(1, 82, 147, 0.18);
}
.breadcrumb::before {
  content: "";
  position: absolute;
  right: 100%; top: 0; bottom: 0;
  width: 100vw;
  background: var(--blue);
}
.breadcrumb::after {
  content: "";
  position: absolute;
  right: -12px; top: 0; bottom: 0;
  width: 12px;
  background: var(--blue);
  clip-path: polygon(0 0, 100% 0, 0 100%);
}
.breadcrumb a { color: #fff; transition: opacity .2s; }
.breadcrumb a:hover { opacity: .82; text-decoration: none; }
.breadcrumb .sep { margin: 0 4px; color: rgba(255, 255, 255, 0.55); }
.breadcrumb .cur { color: rgba(255, 255, 255, 0.92); }

/* 内页主体：左侧栏目导航 + 右侧内容 */
.inner-wrap {
  display: flex; gap: 32px; align-items: flex-start;
  padding: 40px 0 56px;
}
.side-nav {
  flex-shrink: 0; width: 220px;
  border: 1px solid var(--line); border-radius: var(--radius);
  overflow: hidden; background: #fff;
}
.side-nav .sn-head {
  background: var(--navy); color: #fff;
  font-size: 1.05rem; font-weight: 600;
  padding: 14px 18px;
  position: relative;
}
.side-nav .sn-head::after {
  content: ""; position: absolute; left: 18px; right: 18px; bottom: 0;
  height: 2px; background: rgba(255, 255, 255, 0.25);
}
.side-nav .sn-menu li a {
  display: block; padding: 12px 18px;
  font-size: .92rem; color: var(--ink);
  border-bottom: 1px solid #f0f0f0;
  transition: all .2s;
}
.side-nav .sn-menu li a:hover { color: var(--blue); background: var(--blue-pale); padding-left: 24px; }
.side-nav .sn-menu li.active a {
  color: var(--blue); font-weight: 700;
  background: var(--blue-pale);
  border-left: 3px solid var(--blue);
}

/* 右侧内容面板 */
.page-con {
  flex: 1; min-width: 0;
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 28px 30px;
}
.page-title {
  display: flex; align-items: flex-end; justify-content: space-between;
  border-bottom: 2px solid var(--blue);
  padding-bottom: 12px; margin-bottom: 18px;
}
.page-title h1 { font-size: 1.35rem; color: var(--navy); }
.page-title .pt-en {
  font-size: .72rem; color: rgba(0, 0, 0, 0.25);
  letter-spacing: 2px; text-transform: uppercase;
  margin-bottom: 4px;
}

/* 分页 */
.pager { display: flex; justify-content: center; align-items: center; flex-wrap: wrap; margin-top: 26px; }
.pager a, .pager span {
  min-width: 40px;
  height: 40px;
  line-height: 38px;
  padding: 0 14px;
  margin: 0 4px;
  box-sizing: border-box;
  border: 1px solid #dfe1e4;
  border-radius: 3px;
  font-size: .875rem;
  color: #66635f;
  text-align: center;
  transition: all .3s ease-in-out;
}
.pager a:hover { border-color: var(--blue); color: var(--blue); }
.pager .cur { background: var(--blue); border-color: var(--blue); color: #fff; font-weight: 600; }
.pager .info { border: none; color: #999; margin-right: 8px; }

/* 文章列表 */
.tz-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin-bottom: 26px;
}
.tz-list li { min-width: 0; }
.tz-list li a {
  position: relative;
  display: flex;
  align-items: center;
  height: 100%;
  padding: 16px 18px;
  background: #f4f6fa;
  border-radius: 8px;
  transition: background-color .25s, box-shadow .25s, transform .25s;
}
.tz-list li a:hover {
  background: #fff;
  box-shadow: var(--shadow);
  transform: translateY(-2px);
}
.tz-list .tz-date {
  flex-shrink: 0;
  width: 60px; height: 54px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: linear-gradient(145deg, rgba(1, 82, 147, 0.12), rgba(1, 82, 147, 0.04));
  border-radius: 6px;
  font-family: Arial, Helvetica, sans-serif;
}
.tz-list .tz-date b { font-size: 1.5rem; line-height: 1.05; color: var(--blue); font-weight: 700; }
.tz-list .tz-date em { font-style: normal; font-size: .72rem; color: #9ca3af; margin-top: 3px; }
.tz-list .tz-tit {
  flex: 1;
  min-width: 0;
  margin-left: 16px;
  font-size: 1.0625rem;
  color: #323232;
  line-height: 1.55;
  display: -webkit-box; -webkit-box-orient: vertical; -webkit-line-clamp: 2; overflow: hidden;
  transition: color .25s;
}
.tz-list li a:hover .tz-tit { color: var(--blue); }
/* 视频列表：日期块替换为播放图标块 */
.tz-list .tz-play {
  flex-shrink: 0;
  width: 60px; height: 54px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(145deg, rgba(1, 82, 147, 0.12), rgba(1, 82, 147, 0.04));
  border-radius: 6px;
  color: var(--blue);
  transition: transform .25s, background-color .25s;
}
.tz-list li a:hover .tz-play { transform: scale(1.06); background: rgba(1, 82, 147, 0.16); }
.tz-list .tz-play svg { width: 22px; height: 22px; margin-left: 2px; }

/* 文章详情页 */
.ar-article .ar-title {
  font-size: 1.8rem;
  color: #323232;
  font-weight: 700;
  line-height: 1.5;
  margin-bottom: 1rem;
}
.ar-article .ar-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 28px;
  color: #999;
  font-size: .875rem;
  line-height: 2.1875rem;
  margin-bottom: 4px;
}
.ar-article .ar-meta span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--blue);
}
.ar-article .ar-meta svg { width: 15px; height: 15px; stroke: #b3b3b3; fill: none; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.ar-article .ar-line { border: none; border-top: 1px solid #e5e5e5; margin: 0 0 1.5rem; }
.ar-article .ar-content {
  font-size: 1.125rem;
  color: #323232;
  line-height: 2.375rem;
}
.ar-article .ar-content p { margin-bottom: .75rem; }
.ar-article .ar-content p.q { font-weight: 700; color: var(--navy); }
.ar-article .ar-content p.note { color: var(--blue); font-weight: 600; }
.ar-article .ar-content img { max-width: 100%; height: auto; margin: 10px auto; }
.ar-article .ar-content p.pic { text-align: center; }
.ar-article .ar-pn {
  margin-top: 2rem;
  padding-top: 1.25rem;
  border-top: 1px solid #e5e5e5;
}
.ar-article .ar-pn a {
  display: block;
  font-size: .95rem;
  color: #323232;
  line-height: 2.1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  transition: color .2s;
}
.ar-article .ar-pn a:hover { color: var(--blue); }
.ar-article .ar-pn a span { color: var(--blue); font-weight: 600; margin-right: 6px; }

/* 视频详情页 */
.video-player {
  width: 100%; aspect-ratio: 16 / 9;
  background: #000; border-radius: var(--radius); overflow: hidden;
  margin-bottom: 18px;
}
.video-player video { width: 100%; height: 100%; object-fit: contain; }

/* ============ 友情链接（汉江师范） ============ */
.links { padding: 30px 0 36px; background: var(--blue-soft); }
.links .links-head {
  display: flex; align-items: center; gap: 14px;
  margin-bottom: 18px;
}
.links .links-head h2 {
  font-size: 1.25rem; color: var(--blue);
  padding-left: 14px; position: relative;
}
.links .links-head h2::before {
  content: ""; position: absolute; left: 0; top: 3px; bottom: 3px;
  width: 4px; background: var(--blue); border-radius: 2px;
}
.links .links-head .lh-line { flex: 1; height: 1px; background: var(--line); }
.links ul { display: flex; flex-wrap: wrap; gap: 12px 8px; }
.links ul li a {
  display: inline-block;
  padding: 5px 16px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 20px;
  font-size: .84rem; color: #555;
  transition: all .25s;
}
.links ul li a:hover { border-color: var(--blue); color: var(--blue); background: var(--blue-pale); }

/* ============ 页脚（汉江师范 hjnu 版式） ============ */
.footer {
  background: var(--blue);
  color: #fff;
  padding: 30px 0;
}
.footer .container { display: flex; align-items: center; }
.footer .foot-logo { flex-shrink: 0; margin-right: 30px; }
.footer .foot-logo img { height: 52px; width: auto; }
.footer .cory p { font-size: .875rem; color: #fff; line-height: 30px; }

/* ============ 移动端抽屉导航 ============ */
.nav-mask {
  position: fixed; inset: 0; z-index: 1100;
  background: rgba(10, 42, 90, 0.55);
  opacity: 0; visibility: hidden;
  transition: opacity .3s, visibility .3s;
}
.nav-mask.show { opacity: 1; visibility: visible; }
.drawer {
  position: fixed; top: 0; right: 0; bottom: 0; z-index: 1200;
  width: min(320px, 84vw);
  background: #fff;
  transform: translateX(100%);
  transition: transform .35s ease;
  display: flex; flex-direction: column;
  overflow-y: auto;
}
.drawer.open { transform: translateX(0); box-shadow: -8px 0 30px rgba(10, 42, 90, 0.25); }
.drawer-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 18px;
  background: var(--navy);
  color: #fff;
}
.drawer-head span { font-size: 1rem; font-weight: 600; }
.drawer-close { color: #fff; font-size: 1.5rem; line-height: 1; }
.drawer-search { display: flex; gap: 8px; padding: 14px 16px; border-bottom: 1px solid var(--line); }
.drawer-search input {
  flex: 1; height: 34px; padding: 0 12px;
  border: 1px solid var(--line); border-radius: var(--radius);
  font-size: .85rem; outline: none;
}
.drawer-search input:focus { border-color: var(--blue); }
.drawer-search button {
  padding: 0 16px; background: var(--navy); color: #fff;
  border-radius: var(--radius); font-size: .85rem;
}
.drawer-menu > li > a {
  display: block; padding: 13px 18px;
  border-bottom: 1px solid #f0f0f0;
  font-size: .92rem; color: var(--ink);
}
.drawer-menu .sub-item a { padding-left: 34px; font-size: .85rem; color: var(--ink-soft); }
.drawer-menu > li > a:hover { color: var(--blue); background: var(--blue-pale); }

/* ============ 返回顶部 ============ */
.to-top {
  position: fixed; right: 26px; bottom: 30px; z-index: 900;
  width: 44px; height: 44px; border-radius: 50%;
  background: var(--navy); color: #fff;
  font-size: 1.1rem;
  display: flex; align-items: center; justify-content: center;
  box-shadow: var(--shadow-lg);
  opacity: 0; visibility: hidden; transform: translateY(12px);
  transition: all .3s;
}
.to-top.show { opacity: 1; visibility: visible; transform: translateY(0); }
.to-top:hover { background: var(--blue-light); }

/* ============ 滚动滑入动画 ============ */
.reveal { opacity: 0; transition: opacity .85s ease, transform .85s ease; }
.reveal-left { transform: translateX(-70px); }
.reveal-right { transform: translateX(70px); }
.reveal-up { transform: translateY(46px); }
.reveal.in { opacity: 1; transform: none; }
.reveal.d1 { transition-delay: .12s; }
.reveal.d2 { transition-delay: .24s; }
.reveal.d3 { transition-delay: .36s; }

/* ============ 响应式 ============ */
@media (max-width: 1024px) {
  .main-nav { display: none; }
  .menu-btn { display: flex; }
  .services-grid { gap: 16px; }
  .service-card { width: calc(50% - 8px); }
  .sec-title.center > div { padding: 0 46px; }
  .sec-title.center > div::before,
  .sec-title.center > div::after { width: 30px; }
  .hj-cols { flex-direction: column; gap: 36px; }
  .hj-row1 .hj-left, .hj-row1 .hj-right,
  .hj-row4 .hj-left, .hj-row4 .hj-right,
  .hj-row2 .hj-left, .hj-row2 .hj-right { width: 100%; }
  .video-thumbs { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .video-thumbs.cols-4 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .inner-wrap { flex-direction: column; gap: 24px; }
  .side-nav { width: 100%; }
  .side-nav .sn-menu { display: flex; flex-wrap: wrap; }
  .side-nav .sn-menu li { width: 33.33%; }
  .side-nav .sn-menu li a { border-bottom: none; border-right: 1px solid #f0f0f0; }
  .footer .container { flex-direction: column; text-align: center; }
  .footer .foot-logo { margin-right: 0; margin-bottom: 10px; }
}
@media (max-width: 600px) {
  .header-top { display: none; }
  .drawer-search input { font-size: 16px; }
  .brand .brand-logo { width: 44px; height: 44px; }
  .brand-text strong { font-size: 1.02rem; }
  .brand-text em { font-size: .55rem; letter-spacing: 2px; }
  .services-grid { gap: 18px; }
  .service-card { width: 100%; }
  .sec-title.center > div { padding: 0 34px; }
  .sec-title.center > div::before,
  .sec-title.center > div::after { width: 20px; }
  .hj-row { padding: 38px 0; }
  .news-pic { flex-direction: column; gap: 16px; }
  .video-thumbs { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .video-thumbs.cols-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .hj-video-head { justify-content: flex-start; }
  .hj-video-head .hj-more { position: static; transform: none; margin-left: auto; align-self: center; }
  .side-nav .sn-menu li { width: 50%; }
  .inner-wrap { padding: 28px 0 40px; }
  .page-con { padding: 20px 16px; }
  .ar-article .ar-title { font-size: 1.28rem; }
  .ar-article .ar-content { font-size: 1rem; line-height: 2.1; }
  .ar-article .ar-content p { margin-bottom: .6rem; }
  .tz-list { grid-template-columns: 1fr; }
  .hero.hero-page { height: 300px; }
  .breadcrumb { height: 46px; padding: 0 14px; font-size: .85rem; }
  .hero-cap { bottom: 12%; }
  .hero-cap .cap-cn { font-size: 1.5rem; letter-spacing: 4px; text-indent: 4px; }
  .hero-arrow { width: 36px; height: 36px; font-size: 1.1rem; }
  .hero-arrow.prev { left: 10px; }
  .hero-arrow.next { right: 10px; }
  .section { padding: 38px 0; }
}

/* 动效降级 */
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1 !important; transform: none !important; transition: none; }
  * { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}