/* ==========================================================================
   安徽职业技术大学计算机与信息技术学院融媒体中心 · 全站样式 v3
   设计定稿：现代高级极简 × 思源宋体 × 米白纸感 × 丰富灵动的动效
   主色：安职大蓝 #2656A5；深色仅用于首页轮播与页脚
   ========================================================================== */

/* ---------- 1. 基础与变量 ---------- */
:root {
  --brand: #2656a5;         /* 安职大蓝 */
  --brand-dark: #17345f;    /* 深蓝 */
  --tech: #5b8fd6;          /* 浅蓝点缀 */

  --ink: #1b2233;           /* 墨蓝黑（正文/标题） */
  --ink-2: #3a4358;
  --muted: #777c88;

  --cream: #f6f3ec;         /* 米白纸感（页面底） */
  --cream-2: #efe9dc;       /* 深一档米色（分隔带） */
  --paper: #fdfcf9;         /* 纸白（卡片） */
  --line: #e5dfd2;          /* 暖灰分隔线 */

  --dark: #0f1524;          /* 深墨蓝（轮播/页脚/子页头部） */
  --dark-2: #161d30;

  --serif: "Noto Serif SC", "Source Han Serif SC", "STSong", "SimSun", serif;
  --sans: "Noto Sans SC", "Microsoft YaHei", "PingFang SC", "Helvetica Neue", Arial, sans-serif;

  --ease: cubic-bezier(.22, .61, .36, 1);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--serif);
  color: var(--ink);
  background: var(--cream);
  font-size: 16px;
  line-height: 1.9;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }
input, select, textarea { font-family: var(--sans); }

::selection { background: rgba(38, 86, 165, .22); }

/* ---------- 2. 通用 ---------- */
.container { max-width: 1180px; margin: 0 auto; padding: 0 28px; }

.section { padding: 92px 0; }
.section--paper { background: var(--paper); }

/* 区块标题：小蓝签 + 大字衬线标题（现代编辑风，左对齐） */
.sec-head { margin-bottom: 48px; max-width: 760px; }
.sec-head .kicker {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--sans); font-size: 13px; letter-spacing: 3px; color: var(--brand);
  margin-bottom: 14px;
}
.sec-head .kicker::before { content: ""; width: 22px; height: 1px; background: var(--brand); }
.sec-head h2 {
  font-size: clamp(28px, 4vw, 42px); font-weight: 700; line-height: 1.35;
  letter-spacing: 3px; color: var(--ink);
}
.sec-head p.lead { margin-top: 14px; font-size: 16px; color: var(--muted); }
.sec-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.sec-head.center .kicker::after { content: ""; width: 22px; height: 1px; background: var(--brand); }

/* 按钮（无衬线，微圆角，悬停箭头滑动） */
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--sans); font-size: 14px; letter-spacing: 2px;
  padding: 13px 30px; border-radius: 6px;
  background: var(--brand); color: #fff; border: 1px solid var(--brand);
  transition: background .3s var(--ease), border-color .3s var(--ease), transform .3s var(--ease), box-shadow .3s var(--ease);
}
.btn .arr { display: inline-block; transition: transform .3s var(--ease); }
.btn:hover { background: var(--brand-dark); border-color: var(--brand-dark); box-shadow: 0 10px 26px rgba(38, 86, 165, .28); transform: translateY(-2px); }
.btn:hover .arr { transform: translateX(5px); }
.btn-ghost { background: transparent; color: #fff; border-color: rgba(255, 255, 255, .55); }
.btn-ghost:hover { background: rgba(255, 255, 255, .12); border-color: #fff; box-shadow: none; }
.btn-white { background: #fff; color: var(--brand); border-color: #fff; }
.btn-white:hover { background: var(--cream); border-color: var(--cream); box-shadow: 0 10px 26px rgba(0, 0, 0, .2); }
.btn-outline { background: transparent; color: var(--brand); }
.btn-outline:hover { color: #fff; }

/* 文字链接：底部细线生长 */
.link-line {
  position: relative; display: inline-block; color: var(--brand);
  font-family: var(--sans); font-size: 14px; letter-spacing: 1px;
}
.link-line::after {
  content: ""; position: absolute; left: 0; bottom: -3px; width: 100%; height: 1px;
  background: var(--brand); transform: scaleX(0); transform-origin: right;
  transition: transform .35s var(--ease);
}
.link-line:hover::after { transform: scaleX(1); transform-origin: left; }

/* 滚动渐入（JS 加 .visible） */
.reveal { opacity: 0; transform: translateY(34px); transition: opacity .9s var(--ease), transform .9s var(--ease); }
.reveal.visible { opacity: 1; transform: none; }

/* 图片槽：照片未就位时显示品牌占位，照片放入后自动切换 */
.photo {
  position: relative; overflow: hidden; border-radius: 10px;
  background: var(--dark); background-image:
    linear-gradient(rgba(255, 255, 255, .05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .05) 1px, transparent 1px);
  background-size: 42px 42px;
}
.photo.has-img { background-image: none; }
.photo.has-img .photo-fallback { opacity: 0; }
.photo img.photo-real {
  position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover;
  transition: transform 1.2s var(--ease);
}
.photo:hover img.photo-real { transform: scale(1.05); }
.photo-fallback {
  position: absolute; inset: 0; display: flex; flex-direction: column;
  align-items: center; justify-content: center; gap: 12px; text-align: center;
  color: rgba(255, 255, 255, .85); padding: 20px; transition: opacity .5s;
}
.photo-fallback .ph-tag {
  font-family: var(--sans); font-size: 12px; letter-spacing: 2px;
  color: #b9cde8; border: 1px solid rgba(255, 255, 255, .3); padding: 4px 12px; border-radius: 3px;
}

/* ==========================================================================
   3. 顶部导航（悬浮透明 → 滚动变白毛玻璃）
   ========================================================================== */
.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  transition: background .4s var(--ease), box-shadow .4s var(--ease), backdrop-filter .4s;
}
.nav-inner {
  height: 84px; display: flex; align-items: center; justify-content: space-between; gap: 18px;
}
.nav-left { display: flex; align-items: center; gap: 14px; }
.nav-logo { height: 44px; width: auto; }
.nav-logo.light { display: none; }
.site-header .nav-name { line-height: 1.35; }
.site-header .nav-name b { display: block; font-family: var(--sans); font-size: 17px; font-weight: 700; letter-spacing: 2px; color: #fff; transition: color .4s; }
.site-header .nav-name span { font-size: 11px; font-family: var(--sans); letter-spacing: 2px; color: rgba(255, 255, 255, .65); transition: color .4s; }

.nav-links { display: flex; align-items: center; gap: 6px; font-family: var(--sans); }
.nav-links a {
  position: relative; padding: 10px 16px; font-size: 14.5px; letter-spacing: 2px;
  color: rgba(255, 255, 255, .88); transition: color .3s;
}
.nav-links a::after {
  content: ""; position: absolute; left: 16px; right: 16px; bottom: 4px; height: 2px;
  background: #fff; transform: scaleX(0); transition: transform .3s var(--ease); transform-origin: left;
}
.nav-links a:hover { color: #fff; }
.nav-links a:hover::after, .nav-links a.active::after { transform: scaleX(1); }

/* 滚动后：白底毛玻璃，深色文字，logo 换彩色版 */
.site-header.scrolled {
  background: rgba(253, 252, 249, .9);
  backdrop-filter: blur(14px);
  box-shadow: 0 6px 24px rgba(27, 34, 51, .08);
}
.site-header.scrolled .nav-logo.light { display: block; }
.site-header.scrolled .nav-logo.dark { display: none; }
.site-header.scrolled .nav-name b { color: var(--ink); }
.site-header.scrolled .nav-name span { color: var(--muted); }
.site-header.scrolled .nav-links a { color: var(--ink-2); }
.site-header.scrolled .nav-links a:hover, .site-header.scrolled .nav-links a.active { color: var(--brand); }
.site-header.scrolled .nav-links a::after { background: var(--brand); }

.nav-toggle { display: none; flex-direction: column; gap: 5px; padding: 10px 4px; }
.nav-toggle span { width: 25px; height: 2px; background: #fff; transition: .3s; }
.site-header.scrolled .nav-toggle span { background: var(--ink); }

/* ==========================================================================
   4. 首页全屏轮播
   ========================================================================== */
.hero { position: relative; height: 100vh; min-height: 640px; max-height: 1080px; overflow: hidden; background: var(--dark); }
.slide { position: absolute; inset: 0; opacity: 0; pointer-events: none; transition: opacity 1.1s var(--ease); }
.slide.active { opacity: 1; pointer-events: auto; }
.slide-img { position: absolute; inset: -4%; background-size: cover; background-position: center; }
.slide.active .slide-img { animation: kenburns 9s linear forwards; }
@keyframes kenburns { from { transform: scale(1); } to { transform: scale(1.07); } }
/* 轮播滚出视口后：暂停推近动画，减少后台 GPU 开销 */
.hero.off-screen .slide-img { animation-play-state: paused; }
.slide-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(15, 21, 36, .55) 0%, rgba(15, 21, 36, .15) 40%, rgba(15, 21, 36, .62) 100%);
}
.slide-content {
  position: relative; z-index: 2; height: 100%;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  text-align: center; color: #fff; padding: 0 28px;
}
.slide-content .sc-logo { height: 88px; width: auto; margin-bottom: 26px; }
.slide-content h2 {
  font-size: clamp(30px, 5.2vw, 56px); font-weight: 700; letter-spacing: 8px; line-height: 1.4;
  text-shadow: 0 4px 30px rgba(0, 0, 0, .35);
}
.slide-content .sc-sub { margin-top: 16px; font-family: var(--sans); font-size: 15px; letter-spacing: 4px; color: #cfd8e8; }
.slide-content .sc-xun { margin-top: 20px; max-height: 66px; width: auto; }
.slide-content .sc-actions { margin-top: 34px; display: flex; gap: 16px; flex-wrap: wrap; justify-content: center; }

/* 每帧激活时文字逐行浮现 */
.slide .anim { opacity: 0; transform: translateY(26px); }
.slide.active .anim { animation: slideUp .9s var(--ease) forwards; }
.slide.active .anim:nth-child(1) { animation-delay: .25s; }
.slide.active .anim:nth-child(2) { animation-delay: .4s; }
.slide.active .anim:nth-child(3) { animation-delay: .55s; }
.slide.active .anim:nth-child(4) { animation-delay: .7s; }
.slide.active .anim:nth-child(5) { animation-delay: .85s; }
@keyframes slideUp { to { opacity: 1; transform: none; } }

/* 轮播控制 */
.hero-arrow {
  position: absolute; top: 50%; transform: translateY(-50%); z-index: 5;
  width: 52px; height: 52px; border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, .4); color: #fff;
  font-size: 20px; display: flex; align-items: center; justify-content: center;
  transition: background .3s, border-color .3s;
}
.hero-arrow:hover { background: rgba(255, 255, 255, .16); border-color: #fff; }
.hero-arrow.prev { left: 28px; }
.hero-arrow.next { right: 28px; }
.hero-dots {
  position: absolute; bottom: 34px; left: 0; right: 0; z-index: 5;
  display: flex; justify-content: center; gap: 10px;
}
.hero-dots button {
  width: 10px; height: 10px; border-radius: 50%;
  background: rgba(255, 255, 255, .35); transition: width .35s var(--ease), background .3s;
}
.hero-dots button.active { width: 30px; border-radius: 6px; background: #fff; }
.hero-scroll-hint {
  position: absolute; bottom: 26px; left: 50%; transform: translateX(-50%); z-index: 5;
  font-family: var(--sans); font-size: 11px; letter-spacing: 3px; color: rgba(255, 255, 255, .6);
  animation: hintFloat 2.4s ease-in-out infinite;
}
@keyframes hintFloat { 0%, 100% { transform: translate(-50%, 0); } 50% { transform: translate(-50%, 8px); } }

/* 滚动视差：轮播内容随滚动上移变淡 */
.hero-parallax { transition: none; will-change: transform, opacity; }

/* ==========================================================================
   5. 数字统计带（深色，随滚动计数）
   ========================================================================== */
.stats-band { background: var(--dark); color: #fff; padding: 72px 0; border-bottom: 1px solid rgba(255, 255, 255, .08); }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 30px; text-align: center; }
.stat b {
  font-family: var(--serif); font-size: clamp(40px, 5vw, 58px); font-weight: 700;
  color: #fff; letter-spacing: 2px; display: block; line-height: 1.2;
}
.stat span {
  display: block; margin-top: 10px; font-family: var(--sans); font-size: 13px;
  letter-spacing: 3px; color: #93a3bd;
}
.stat { opacity: 0; transform: translateY(24px); transition: opacity .8s var(--ease), transform .8s var(--ease); }
.stat.visible { opacity: 1; transform: none; }

/* ==========================================================================
   6. 计信日新列表（编辑感行式列表） ---------- */
.rixin-row {
  display: flex; align-items: baseline; gap: 26px;
  padding: 22px 6px; border-bottom: 1px solid var(--line);
  transition: background .3s, padding-left .3s var(--ease);
}
.rixin-row:first-child { border-top: 1px solid var(--line); }
.rixin-row:hover { background: rgba(38, 86, 165, .045); padding-left: 14px; }
.rixin-row .r-date {
  flex: none; width: 108px; font-family: var(--sans); font-size: 13px; color: var(--muted);
  letter-spacing: 1px;
}
.rixin-row .r-title { flex: 1; font-size: 17.5px; color: var(--ink); transition: color .3s; }
.rixin-row:hover .r-title { color: var(--brand); }
.rixin-row .r-tag {
  flex: none; font-family: var(--sans); font-size: 11px; letter-spacing: 2px;
  color: var(--brand); border: 1px solid rgba(38, 86, 165, .4); padding: 2px 10px; border-radius: 3px;
}

/* ---------- 7. 部门介绍 ---------- */
.about-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 60px; align-items: center; }
.about-grid .prose p { margin-bottom: 16px; color: var(--ink-2); }
.about-grid .prose p b { color: var(--brand-dark); }
.about-photo { aspect-ratio: 4 / 3; }

/* ---------- 8. 部门分工卡片 ---------- */
.div-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.div-grid.steps-grid { grid-template-columns: repeat(4, 1fr); }
.div-card {
  background: var(--paper); border: 1px solid var(--line); border-radius: 10px;
  padding: 34px 28px; transition: transform .45s var(--ease), box-shadow .45s var(--ease), border-color .3s;
}
.div-card:hover {
  transform: translateY(-8px);
  border-color: rgba(38, 86, 165, .45);
  box-shadow: 0 22px 44px rgba(27, 34, 51, .10);
}
.div-icon {
  width: 52px; height: 52px; border-radius: 50%;
  border: 1px solid rgba(38, 86, 165, .35); color: var(--brand);
  display: flex; align-items: center; justify-content: center; margin-bottom: 20px;
  transition: background .35s, color .35s, transform .35s var(--ease);
}
.div-card:hover .div-icon { background: var(--brand); color: #fff; transform: rotate(-8deg) scale(1.06); }
.div-card h3 { font-size: 21px; font-weight: 700; letter-spacing: 2px; margin-bottom: 12px; }
.div-card ul li {
  position: relative; padding: 5px 0 5px 18px; font-size: 14.5px; color: var(--ink-2);
}
.div-card ul li::before {
  content: ""; position: absolute; left: 2px; top: 14px; width: 6px; height: 6px;
  border-radius: 50%; background: var(--tech);
}

/* ---------- 9. 招新 CTA ---------- */
.cta-band {
  position: relative; overflow: hidden; border-radius: 16px;
  background: var(--dark); color: #fff; text-align: center; padding: 90px 40px;
}
.cta-band .cta-img { position: absolute; inset: 0; background-size: cover; background-position: center; opacity: .28; }
.cta-band .cta-img.moving { transform: scale(1.02); }
.cta-band h2 { position: relative; font-size: clamp(26px, 4vw, 40px); font-weight: 700; letter-spacing: 4px; }
.cta-band p { position: relative; margin-top: 14px; font-family: var(--sans); font-size: 14.5px; letter-spacing: 2px; color: #b9c4d8; }
.cta-band .btn { position: relative; margin-top: 30px; }

/* ==========================================================================
   10. 子页面头部（深色，与悬浮导航衔接）
   ========================================================================== */
.page-hero {
  background: var(--dark); color: #fff; text-align: center;
  padding: 190px 0 96px; position: relative; overflow: hidden;
  background-image:
    radial-gradient(circle at 80% 10%, rgba(91, 143, 214, .28), transparent 55%),
    linear-gradient(rgba(255, 255, 255, .04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .04) 1px, transparent 1px);
  background-size: auto, 46px 46px, 46px 46px;
}
.page-hero .crumbs { font-family: var(--sans); font-size: 13px; letter-spacing: 2px; color: #93a3bd; animation: fadeUp .8s var(--ease) both; }
.page-hero .crumbs a:hover { color: #fff; }
.page-hero h1 { margin-top: 18px; font-size: clamp(32px, 5vw, 50px); font-weight: 700; letter-spacing: 10px; animation: fadeUp .8s var(--ease) .12s both; }
.page-hero p.sub { margin-top: 16px; font-family: var(--sans); font-size: 14px; letter-spacing: 3px; color: #9fb2cd; animation: fadeUp .8s var(--ease) .24s both; }
@keyframes fadeUp { from { opacity: 0; transform: translateY(26px); } to { opacity: 1; transform: none; } }

/* 子页头部背景照片（加载成功后叠加深色渐变蒙层，失败保持深色网格底） */
.page-hero { position: relative; }
.hero-bg {
  position: absolute; inset: 0; z-index: 0;
  background-size: cover; background-position: center;
}
.page-hero .container { position: relative; z-index: 1; }

/* ==========================================================================
   10b. 照片背景模块（渐变蒙层 + 照片，滚动视差）
   --------------------------------------------------------------------------
   · .photo-band      全宽深色照片带（白色文字 + 深色渐变蒙层）
   · .section--photo  内容区块照片底（data-tint="light" 时用米白蒙层，深色文字）
   ========================================================================== */
.photo-band {
  position: relative; padding: 100px 0; text-align: center; color: #fff;
  background-color: var(--dark);
  background-image:
    linear-gradient(rgba(255, 255, 255, .05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .05) 1px, transparent 1px);
  background-size: 42px 42px;
}
.section--photo { background-color: var(--cream); }

.photo-band.has-img, .section--photo.has-img, .hero-bg {
  background-size: cover;
  background-position: center;
}

.photo-band .band-title { font-size: clamp(24px, 3.8vw, 38px); font-weight: 700; letter-spacing: 8px; }
.photo-band .band-sub { margin-top: 12px; font-family: var(--sans); font-size: 14px; letter-spacing: 3px; color: #c6d2e4; }
.photo-band img.band-xun { margin: 20px auto 0; max-height: 64px; width: auto; }
.photo-band .band-chip {
  display: inline-block; margin-bottom: 16px;
  font-family: var(--sans); font-size: 12px; letter-spacing: 2px; color: #c6d2e4;
  border: 1px solid rgba(255, 255, 255, .4); padding: 4px 14px; border-radius: 3px;
  background: rgba(255, 255, 255, .08);
}
.photo-band p.band-text { max-width: 720px; margin: 0 auto; font-size: 15px; color: #d7e0ee; line-height: 2; }

/* ==========================================================================
   11. 文章详情（编辑排版）
   ========================================================================== */
.article-wrap { max-width: 820px; margin: 0 auto; background: var(--paper); border: 1px solid var(--line); border-radius: 10px; padding: 64px 66px; }
.article-back { display: inline-block; font-family: var(--sans); font-size: 13px; letter-spacing: 1px; color: var(--muted); margin-bottom: 22px; }
.article-back:hover { color: var(--brand); }
.article-wrap h1 { font-size: clamp(24px, 3.2vw, 32px); text-align: center; line-height: 1.6; font-weight: 700; letter-spacing: 1px; }
.article-meta {
  text-align: center; font-family: var(--sans); font-size: 13px; color: var(--muted);
  margin: 18px 0 26px; padding-bottom: 20px; border-bottom: 1px solid var(--line);
}
.article-meta span { margin: 0 12px; }
.article-content { font-size: 16.5px; line-height: 2.15; }
.article-content p { text-indent: 2em; margin-bottom: 16px; color: var(--ink-2); }
.article-foot { margin-top: 30px; padding-top: 20px; border-top: 1px solid var(--line); text-align: center; }

/* ==========================================================================
   12. 招新页（条件/流程/FAQ/表单） ========================================================================== */
.recruit-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 30px; align-items: start; }
.benefit-card { display: flex; gap: 16px; padding: 26px; background: var(--paper); border: 1px solid var(--line); border-radius: 10px; transition: transform .4s var(--ease), box-shadow .4s var(--ease); }
.benefit-card:hover { transform: translateY(-6px); box-shadow: 0 16px 34px rgba(27, 34, 51, .09); }
.benefit-card .div-icon { margin: 0; flex: none; width: 46px; height: 46px; }
.benefit-card h3 { font-size: 17px; letter-spacing: 1px; margin-bottom: 4px; }
.benefit-card p { font-size: 14px; color: var(--muted); }

.req-list li {
  display: flex; align-items: center; gap: 14px; padding: 12px 0;
  border-bottom: 1px dashed var(--line); font-size: 15.5px; color: var(--ink-2);
}
.req-list li::before { content: "—"; color: var(--brand); font-family: var(--sans); }

.faq-item {
  background: var(--paper); border: 1px solid var(--line); border-radius: 8px;
  margin-bottom: 12px; overflow: hidden; transition: border-color .3s, box-shadow .3s;
}
.faq-item[open] { border-color: rgba(38, 86, 165, .4); box-shadow: 0 10px 26px rgba(27, 34, 51, .06); }
.faq-item summary {
  padding: 17px 22px; cursor: pointer; list-style: none;
  display: flex; justify-content: space-between; align-items: center; font-size: 16px; font-weight: 600;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "+"; font-family: var(--sans); font-size: 20px; color: var(--brand); transition: transform .3s var(--ease); }
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item .faq-a { padding: 0 22px 18px; color: var(--muted); font-size: 15px; }

.apply-wrap { max-width: 700px; margin: 0 auto; }
.form-card { background: var(--paper); border: 1px solid var(--line); border-radius: 12px; padding: 46px 48px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.form-field { margin-bottom: 20px; }
.form-field label { display: block; font-family: var(--sans); font-size: 14px; font-weight: 600; margin-bottom: 8px; letter-spacing: 1px; }
.form-field label em { color: #c0392b; font-style: normal; }
.form-field input, .form-field select, .form-field textarea {
  width: 100%; border: 1px solid var(--line); border-radius: 8px; padding: 13px 15px;
  background: #fff; font-size: 14.5px; color: var(--ink);
  transition: border-color .3s, box-shadow .3s;
}
.form-field input:focus, .form-field select:focus, .form-field textarea:focus {
  outline: none; border-color: var(--brand); box-shadow: 0 0 0 4px rgba(38, 86, 165, .12);
}
.form-field textarea { resize: vertical; min-height: 120px; }
.form-tip { font-family: var(--sans); font-size: 12.5px; color: #c0392b; margin-top: 6px; min-height: 16px; }

.toast {
  position: fixed; left: 50%; bottom: 40px; transform: translate(-50%, 80px);
  background: var(--brand-dark); color: #fff; padding: 14px 28px; border-radius: 8px;
  font-family: var(--sans); font-size: 14px; letter-spacing: 1px; z-index: 300;
  opacity: 0; transition: .35s var(--ease); pointer-events: none; box-shadow: 0 14px 34px rgba(15, 21, 36, .4);
}
.toast.show { transform: translate(-50%, 0); opacity: 1; }

/* ==========================================================================
   13. 联系我们 / 信息表 ========================================================================== */
.info-table { width: 100%; border-collapse: collapse; background: var(--paper); border-radius: 10px; overflow: hidden; }
.info-table th, .info-table td { border-bottom: 1px solid var(--line); padding: 16px 22px; font-size: 15.5px; text-align: left; }
.info-table tr:last-child th, .info-table tr:last-child td { border-bottom: none; }
.info-table th { width: 190px; font-weight: 600; color: var(--brand-dark); background: var(--cream-2); letter-spacing: 2px; }
.info-table td { color: var(--ink-2); }

/* ==========================================================================
   14. 页脚（深色） ========================================================================== */
.site-footer { background: var(--dark); color: #93a3bd; padding: 84px 0 0; }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1.2fr; gap: 50px; padding-bottom: 46px; }
.footer-about img { height: 52px; width: auto; margin-bottom: 20px; }
.footer-about p { font-size: 14px; line-height: 2; }
.site-footer h4 { color: #fff; font-size: 17px; letter-spacing: 4px; margin-bottom: 20px; font-weight: 700; }
.footer-links a { display: block; font-family: var(--sans); font-size: 14px; letter-spacing: 1px; padding: 6px 0; transition: color .3s, padding-left .3s var(--ease); }
.footer-links a:hover { color: #fff; padding-left: 8px; }
.footer-contact li { font-family: var(--sans); font-size: 14px; padding: 5px 0; }
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, .1); padding: 18px 0;
  font-family: var(--sans); font-size: 12.5px; text-align: center; color: #66738c; line-height: 2;
}

/* ==========================================================================
   15. 返回顶部 ========================================================================== */
.back-top {
  position: fixed; right: 26px; bottom: 26px; width: 48px; height: 48px; border-radius: 50%;
  background: var(--brand); color: #fff; font-size: 18px; z-index: 90;
  display: flex; align-items: center; justify-content: center;
  opacity: 0; pointer-events: none; transform: translateY(14px);
  transition: opacity .35s var(--ease), transform .35s var(--ease), background .3s;
  box-shadow: 0 12px 30px rgba(38, 86, 165, .35);
}
.back-top.show { opacity: 1; pointer-events: auto; transform: none; }
.back-top:hover { background: var(--brand-dark); }

/* ==========================================================================
   16. 响应式 ========================================================================== */
@media (max-width: 1024px) {
  .div-grid { grid-template-columns: repeat(2, 1fr); }
  .about-grid { grid-template-columns: 1fr; gap: 40px; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 36px; }
}

@media (max-width: 860px) {
  .nav-toggle { display: flex; }
  .nav-links {
    position: fixed; top: 84px; left: 0; right: 0; flex-direction: column; align-items: stretch;
    gap: 0; background: rgba(253, 252, 249, .97); backdrop-filter: blur(14px);
    padding: 12px 24px 26px; box-shadow: 0 18px 40px rgba(15, 21, 36, .18);
    transform: translateY(-16px); opacity: 0; pointer-events: none;
    transition: transform .35s var(--ease), opacity .35s var(--ease);
  }
  body.nav-open .nav-links { transform: none; opacity: 1; pointer-events: auto; }
  .nav-links a { color: var(--ink-2); padding: 15px 4px; border-bottom: 1px solid var(--line); }
  .nav-links a::after { display: none; }
  body.nav-open .nav-toggle span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  body.nav-open .nav-toggle span:nth-child(2) { opacity: 0; }
  body.nav-open .nav-toggle span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
  .site-header .nav-name span { display: none; }
  .hero-arrow { display: none; }
  .rixin-row { flex-wrap: wrap; gap: 8px 14px; }
  .rixin-row .r-date { width: auto; }
  .rixin-row .r-title { flex: 1 1 100%; order: -1; }
}

@media (max-width: 620px) {
  .section { padding: 64px 0; }
  .div-grid { grid-template-columns: 1fr; }
  .recruit-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .form-card { padding: 30px 24px; }
  .article-wrap { padding: 36px 24px; }
  .footer-grid { grid-template-columns: 1fr; gap: 34px; }
  .page-hero { padding: 150px 0 70px; }
  .slide-content .sc-logo { height: 64px; }
}