/* ==========================================================================
   北京三月雨文化传播责任有限公司 - 企业文化展馆建设 业务网站
   设计风格：沉稳中国红 + 典雅金，面向央国企/银行/党政单位
   ========================================================================== */

/* ---------- 设计变量 ---------- */
:root {
  --red: #9E2A2A;
  --red-dark: #7A1F1F;
  --red-light: #B8443E;
  --gold: #C0A062;
  --gold-light: #D4B87E;
  --ink: #1F1F1F;
  --ink-soft: #444;
  --paper: #FAF7F2;
  --paper-2: #F2EDE5;
  --white: #FFFFFF;
  --gray-line: #E5DFD6;
  --gray-text: #6B6B6B;

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

  --maxw: 1200px;
  --radius: 6px;
  --shadow: 0 8px 30px rgba(31, 31, 31, .08);
  --shadow-lg: 0 18px 50px rgba(31, 31, 31, .14);
  --ease: cubic-bezier(.22, .61, .36, 1);
}

/* ---------- 重置 ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--sans);
  color: var(--ink);
  background: var(--paper);
  line-height: 1.75;
  font-size: 16px;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; transition: color .3s var(--ease); }
ul { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }

/* ---------- 通用容器 ---------- */
.container { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

/* ---------- 通用标题 ---------- */
.sec-head { text-align: center; margin-bottom: 52px; }
.sec-head .eyebrow {
  font-family: var(--serif);
  font-size: 14px;
  letter-spacing: 4px;
  color: var(--gold);
  text-transform: uppercase;
  display: block;
  margin-bottom: 10px;
}
.sec-head h2 {
  font-family: var(--serif);
  font-size: 36px;
  font-weight: 700;
  color: var(--ink);
  position: relative;
  display: inline-block;
  letter-spacing: 2px;
}
.sec-head h2::after {
  content: "";
  position: absolute;
  bottom: -16px;
  left: 50%;
  transform: translateX(-50%);
  width: 48px;
  height: 3px;
  background: var(--red);
  border-radius: 2px;
}
.sec-head p { color: var(--gray-text); margin-top: 24px; max-width: 640px; margin-left: auto; margin-right: auto; }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 32px;
  font-size: 15px;
  font-weight: 500;
  letter-spacing: 1px;
  border-radius: var(--radius);
  transition: all .35s var(--ease);
  cursor: pointer;
}
.btn-primary { background: var(--red); color: var(--white); }
.btn-primary:hover { background: var(--red-dark); transform: translateY(-2px); box-shadow: 0 10px 24px rgba(158,42,42,.32); }
.btn-outline { border: 1.5px solid var(--white); color: var(--white); }
.btn-outline:hover { background: var(--white); color: var(--red); }
.btn-ghost { border: 1.5px solid var(--red); color: var(--red); }
.btn-ghost:hover { background: var(--red); color: var(--white); }
.btn .arrow { transition: transform .3s var(--ease); }
.btn:hover .arrow { transform: translateX(4px); }

/* ==========================================================================
   顶部信息栏 + 导航
   ========================================================================== */
.topbar {
  background: var(--ink);
  color: rgba(255,255,255,.78);
  font-size: 13px;
  height: 38px;
  display: flex;
  align-items: center;
}
.topbar .container { display: flex; justify-content: space-between; align-items: center; width: 100%; flex-wrap: nowrap; gap: 12px; }
.topbar .tb-left { display: flex; gap: 22px; align-items: center; white-space: nowrap; flex-shrink: 1; min-width: 0; overflow: hidden; }
.topbar .tb-left span { display: flex; align-items: center; gap: 6px; white-space: nowrap; }
.topbar .tb-right { display: flex; gap: 18px; align-items: center; white-space: nowrap; flex-shrink: 0; }
.topbar .tb-right span, .topbar .tb-right a { white-space: nowrap; }
.topbar a:hover { color: var(--gold-light); }
.topbar .hot { color: var(--gold-light); font-weight: 600; }

.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,.97);
  backdrop-filter: blur(10px);
  box-shadow: 0 2px 16px rgba(31,31,31,.06);
  transition: box-shadow .3s var(--ease);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 78px;
}
.logo { display: flex; align-items: center; gap: 12px; }
.logo .logo-mark {
  height: 52px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
}
.logo .logo-mark img { height: 52px; width: auto; object-fit: contain; display: block; }
.logo .logo-text { display: none; }
.logo .logo-text .zh { font-family: var(--serif); font-size: 21px; font-weight: 700; color: var(--ink); letter-spacing: 2px; }
.logo .logo-text .en { font-size: 11px; color: var(--gray-text); letter-spacing: 1.5px; text-transform: uppercase; }

.nav-menu { display: flex; align-items: center; gap: 4px; }
.nav-menu > li > a {
  display: block;
  padding: 10px 20px;
  font-size: 16px;
  font-weight: 500;
  color: var(--ink);
  position: relative;
  border-radius: var(--radius);
}
.nav-menu > li > a::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 2px;
  width: 0;
  height: 2px;
  background: var(--red);
  transition: all .3s var(--ease);
  transform: translateX(-50%);
}
.nav-menu > li > a:hover,
.nav-menu > li > a.active { color: var(--red); }
.nav-menu > li > a:hover::after,
.nav-menu > li > a.active::after { width: 22px; }
.nav-cta {
  margin-left: 16px;
  background: var(--red);
  color: var(--white) !important;
  padding: 10px 22px !important;
  border-radius: var(--radius);
  font-weight: 500;
}
.nav-cta::after { display: none; }
.nav-cta:hover { background: var(--red-dark); }

.menu-toggle { display: none; font-size: 26px; color: var(--ink); }

/* ==========================================================================
   首页 Banner 轮播
   ========================================================================== */
.banner { position: relative; height: 560px; overflow: hidden; background: var(--ink); }
.banner-track { position: relative; width: 100%; height: 100%; }
.banner-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 1s var(--ease);
  display: flex;
  align-items: center;
}
.banner-slide.active { opacity: 1; z-index: 2; }
.banner-slide .bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  transform: scale(1.08);
  transition: transform 8s linear;
}
.banner-slide.active .bg { transform: scale(1); }
.banner-slide::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(31,15,15,.78) 0%, rgba(31,15,15,.45) 45%, rgba(31,15,15,.15) 100%);
}
.banner-slide .copy {
  position: relative;
  z-index: 3;
  color: var(--white);
  max-width: 620px;
  padding-left: 8%;
}
.banner-slide .copy .tag {
  display: inline-block;
  font-family: var(--serif);
  font-size: 14px;
  letter-spacing: 3px;
  color: var(--gold-light);
  border: 1px solid rgba(192,160,98,.5);
  padding: 5px 16px;
  border-radius: 30px;
  margin-bottom: 22px;
}
.banner-slide .copy h2 {
  font-family: var(--serif);
  font-size: 50px;
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: 3px;
  margin-bottom: 18px;
  text-shadow: 0 4px 20px rgba(0,0,0,.4);
  white-space: nowrap;
}
.banner-slide .copy p {
  font-size: 18px;
  line-height: 1.9;
  color: rgba(255,255,255,.85);
  margin-bottom: 32px;
  max-width: 520px;
}
.banner-slide .copy .btn-row { display: flex; gap: 16px; }

/* 轮播控件 */
.banner-dots {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 10;
  display: flex;
  gap: 12px;
}
.banner-dots button {
  width: 36px; height: 4px;
  background: rgba(255,255,255,.4);
  border-radius: 2px;
  transition: all .3s var(--ease);
}
.banner-dots button.active { background: var(--gold); width: 56px; }

.banner-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 10;
  width: 50px; height: 50px;
  border-radius: 50%;
  background: rgba(255,255,255,.14);
  color: var(--white);
  font-size: 22px;
  display: flex; align-items: center; justify-content: center;
  backdrop-filter: blur(6px);
  transition: all .3s var(--ease);
}
.banner-arrow:hover { background: var(--red); }
.banner-arrow.prev { left: 30px; }
.banner-arrow.next { right: 30px; }

/* ==========================================================================
   通用 section 间距
   ========================================================================== */
section { padding: 90px 0; }
.section-alt { background: var(--white); }
.section-dark { background: var(--ink); color: rgba(255,255,255,.85); }
.section-dark .sec-head h2 { color: var(--white); }
.section-dark .sec-head p { color: rgba(255,255,255,.6); }

/* ==========================================================================
   关于三月雨（首页简介）
   ========================================================================== */
.about-preview { display: grid; grid-template-columns: 1.1fr 1fr; gap: 60px; align-items: center; }
.about-preview .img-wrap { position: relative; }
.about-preview .img-wrap img { border-radius: 10px; box-shadow: var(--shadow-lg); width: 100%; height: 420px; object-fit: cover; }
.about-preview .img-wrap .badge {
  position: absolute;
  bottom: -24px;
  right: -24px;
  background: var(--red);
  color: var(--white);
  width: 150px; height: 150px;
  border-radius: 10px;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  font-family: var(--serif);
  box-shadow: var(--shadow);
}
.about-preview .img-wrap .badge .num { font-size: 40px; font-weight: 700; line-height: 1; }
.about-preview .img-wrap .badge .txt { font-size: 13px; margin-top: 6px; letter-spacing: 1px; }
.about-preview .text .eyebrow { font-family: var(--serif); color: var(--gold); font-size: 14px; letter-spacing: 4px; }
.about-preview .text h2 { font-family: var(--serif); font-size: 34px; margin: 12px 0 24px; color: var(--ink); letter-spacing: 2px; }
.about-preview .text p { color: var(--ink-soft); margin-bottom: 18px; }
.about-preview .text .highlights { display: flex; gap: 28px; margin: 28px 0 32px; }
.about-preview .text .highlights .item { text-align: center; }
.about-preview .text .highlights .item .v { font-family: var(--serif); font-size: 30px; color: var(--red); font-weight: 700; }
.about-preview .text .highlights .item .l { font-size: 13px; color: var(--gray-text); }

/* ==========================================================================
   企业文化专题部介绍
   ========================================================================== */
.dept-intro { display: grid; grid-template-columns: 1fr 1.1fr; gap: 60px; align-items: center; }
.dept-intro .text .eyebrow { font-family: var(--serif); color: var(--gold); font-size: 14px; letter-spacing: 4px; }
.dept-intro .text h2 { font-family: var(--serif); font-size: 34px; margin: 12px 0 24px; color: var(--ink); letter-spacing: 2px; }
.dept-intro .text > p { color: var(--ink-soft); margin-bottom: 18px; }
.dept-intro .features { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; margin-top: 28px; }
.dept-intro .features .f-item {
  display: flex; gap: 14px; align-items: flex-start;
  padding: 18px;
  background: var(--paper);
  border-radius: var(--radius);
  border-left: 3px solid var(--gold);
  transition: all .3s var(--ease);
}
.dept-intro .features .f-item:hover { transform: translateY(-3px); box-shadow: var(--shadow); border-left-color: var(--red); }
.dept-intro .features .f-item .ico {
  flex-shrink: 0;
  width: 40px; height: 40px;
  background: var(--red);
  color: var(--white);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 18px;
  font-family: var(--serif);
}
.dept-intro .features .f-item h4 { font-size: 16px; margin-bottom: 4px; color: var(--ink); }
.dept-intro .features .f-item p { font-size: 13px; color: var(--gray-text); line-height: 1.6; }
.dept-intro .img-wrap img { border-radius: 10px; box-shadow: var(--shadow-lg); width: 100%; height: 480px; object-fit: cover; }

/* ==========================================================================
   数据统计
   ========================================================================== */
.stats { background: linear-gradient(135deg, var(--red-dark), var(--red)); color: var(--white); }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 30px; text-align: center; }
.stats-grid .stat { position: relative; }
.stats-grid .stat::after {
  content: "";
  position: absolute;
  right: -15px; top: 20%;
  width: 1px; height: 60%;
  background: rgba(255,255,255,.18);
}
.stats-grid .stat:last-child::after { display: none; }
.stats-grid .stat .num {
  font-family: var(--serif);
  font-size: 52px;
  font-weight: 700;
  line-height: 1;
}
.stats-grid .stat .num .plus { font-size: 28px; color: var(--gold-light); }
.stats-grid .stat .label { font-size: 15px; margin-top: 12px; color: rgba(255,255,255,.8); letter-spacing: 2px; }

/* ==========================================================================
   行政组织架构
   ========================================================================== */
.org-img-wrap {
  max-width: 1100px;
  margin: 0 auto;
  text-align: center;
}
.org-img-wrap img {
  max-width: 100%;
  height: auto;
  display: inline-block;
  border-radius: 12px;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--gray-line);
  background: var(--white);
}
.org-img-wrap .org-zoom-tip {
  display: inline-block;
  margin-top: 16px;
  font-size: 13px;
  color: var(--gray-text);
  text-decoration: none;
  padding: 6px 18px;
  border: 1px solid var(--gray-line);
  border-radius: 30px;
  transition: all .25s ease;
}
.org-img-wrap .org-zoom-tip:hover {
  color: var(--red);
  border-color: var(--red);
}

/* ==========================================================================
   办公环境图
   ========================================================================== */
.office-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.office-grid .office-item {
  position: relative;
  overflow: hidden;
  border-radius: 10px;
  box-shadow: var(--shadow);
  cursor: pointer;
}
.office-grid .office-item img { width: 100%; height: 260px; object-fit: cover; transition: transform .6s var(--ease); }
.office-grid .office-item:hover img { transform: scale(1.08); }
.office-grid .office-item .cap {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  padding: 40px 20px 16px;
  background: linear-gradient(transparent, rgba(31,31,31,.82));
  color: var(--white);
  font-family: var(--serif);
  font-size: 16px;
  letter-spacing: 1px;
}
.office-grid .office-item.featured { grid-column: span 2; grid-row: span 2; }
.office-grid .office-item.featured img { height: 100%; min-height: 540px; }

/* ==========================================================================
   企业资质
   ========================================================================== */
.cert-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.cert-card {
  display: block;
  text-decoration: none;
  background: var(--white);
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid var(--gray-line);
  transition: transform .35s var(--ease), box-shadow .35s var(--ease), border-color .35s ease;
}
.cert-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--gold);
}
.cert-img {
  height: 220px;
  background: var(--paper);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 14px;
  overflow: hidden;
}
.cert-img img {
  max-width: 100%;
  max-height: 100%;
  width: auto;
  height: auto;
  object-fit: contain;
  display: block;
  transition: transform .5s var(--ease);
}
.cert-card:hover .cert-img img { transform: scale(1.04); }
.cert-name {
  padding: 12px 14px;
  font-size: 13px;
  line-height: 1.5;
  color: var(--ink-soft);
  text-align: center;
  border-top: 1px solid var(--gray-line);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  min-height: 48px;
}

/* ==========================================================================
   资讯动态
   ========================================================================== */
.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
.news-card {
  background: var(--white);
  border-radius: 10px;
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: all .35s var(--ease);
  display: flex; flex-direction: column;
}
.news-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.news-card .thumb { overflow: hidden; height: 210px; }
.news-card .thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s var(--ease); }
.news-card:hover .thumb img { transform: scale(1.06); }
.news-card .body { padding: 24px; flex: 1; display: flex; flex-direction: column; }
.news-card .date { font-size: 13px; color: var(--gold); font-family: var(--serif); letter-spacing: 1px; margin-bottom: 10px; }
.news-card h3 { font-size: 18px; font-weight: 600; color: var(--ink); margin-bottom: 10px; line-height: 1.5; transition: color .3s var(--ease); }
.news-card:hover h3 { color: var(--red); }
.news-card p { font-size: 14px; color: var(--gray-text); line-height: 1.7; flex: 1; }
.news-card .more { margin-top: 16px; font-size: 13px; color: var(--red); font-weight: 500; display: inline-flex; align-items: center; gap: 6px; }

/* 资讯列表页 */
.news-page-grid { display: grid; grid-template-columns: 1fr 300px; gap: 50px; align-items: start; }
.news-list { display: flex; flex-direction: column; gap: 24px; }
.news-list-item {
  display: grid; grid-template-columns: 200px 1fr; gap: 26px;
  background: var(--white);
  border-radius: 10px;
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: all .35s var(--ease);
}
.news-list-item:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.news-list-item .thumb { overflow: hidden; }
.news-list-item .thumb img { width: 100%; height: 100%; object-fit: cover; min-height: 150px; transition: transform .6s var(--ease); }
.news-list-item:hover .thumb img { transform: scale(1.06); }
.news-list-item .body { padding: 22px 24px 22px 0; }
.news-list-item .body .meta { display: flex; gap: 16px; align-items: center; margin-bottom: 10px; }
.news-list-item .body .meta .cat { font-size: 12px; color: var(--white); background: var(--red); padding: 3px 12px; border-radius: 30px; }
.news-list-item .body .meta .date { font-size: 13px; color: var(--gray-text); }
.news-list-item .body h3 { font-size: 19px; font-weight: 600; margin-bottom: 8px; color: var(--ink); transition: color .3s var(--ease); }
.news-list-item:hover .body h3 { color: var(--red); }
.news-list-item .body p { font-size: 14px; color: var(--gray-text); line-height: 1.7; }

.news-sidebar .widget {
  background: var(--white);
  border-radius: 10px;
  padding: 28px;
  box-shadow: var(--shadow);
  margin-bottom: 26px;
}
.news-sidebar .widget h4 {
  font-family: var(--serif);
  font-size: 20px;
  margin-bottom: 20px;
  padding-bottom: 14px;
  border-bottom: 2px solid var(--paper-2);
  position: relative;
}
.news-sidebar .widget h4::after {
  content: "";
  position: absolute;
  bottom: -2px; left: 0;
  width: 40px; height: 2px;
  background: var(--red);
}
.news-sidebar .cat-list li { margin-bottom: 10px; }
.news-sidebar .cat-list li a {
  display: flex; justify-content: space-between; align-items: center;
  padding: 10px 14px;
  border-radius: var(--radius);
  font-size: 15px;
  color: var(--ink-soft);
  transition: all .3s var(--ease);
}
.news-sidebar .cat-list li a:hover, .news-sidebar .cat-list li a.active { background: var(--paper); color: var(--red); padding-left: 18px; }
.news-sidebar .cat-list li a .count { font-size: 13px; color: var(--gray-text); }
.news-sidebar .hot-list li { display: flex; gap: 12px; margin-bottom: 16px; }
.news-sidebar .hot-list li .rank {
  flex-shrink: 0;
  width: 24px; height: 24px;
  background: var(--paper-2);
  color: var(--gray-text);
  border-radius: 4px;
  font-size: 13px;
  font-weight: 700;
  display: flex; align-items: center; justify-content: center;
  font-family: var(--serif);
}
.news-sidebar .hot-list li:nth-child(1) .rank { background: var(--red); color: var(--white); }
.news-sidebar .hot-list li:nth-child(2) .rank { background: var(--gold); color: var(--white); }
.news-sidebar .hot-list li:nth-child(3) .rank { background: var(--red-light); color: var(--white); }
.news-sidebar .hot-list li a { font-size: 14px; color: var(--ink-soft); line-height: 1.5; }
.news-sidebar .hot-list li a:hover { color: var(--red); }

/* 分页 */
.pagination { display: flex; justify-content: center; gap: 8px; margin-top: 50px; }
.pagination a {
  width: 42px; height: 42px;
  display: flex; align-items: center; justify-content: center;
  border: 1px solid var(--gray-line);
  border-radius: var(--radius);
  font-size: 14px;
  color: var(--ink-soft);
  transition: all .3s var(--ease);
}
.pagination a:hover, .pagination a.active { background: var(--red); color: var(--white); border-color: var(--red); }

/* ==========================================================================
   联系CTA
   ========================================================================== */
.cta-band {
  background: linear-gradient(135deg, var(--ink), #2a1010);
  color: var(--white);
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-band::before {
  content: "";
  position: absolute;
  inset: 0;
  background: url("") center/cover;
  opacity: .12;
}
.cta-band .inner { position: relative; z-index: 2; }
.cta-band h2 { font-family: var(--serif); font-size: 36px; margin-bottom: 16px; letter-spacing: 2px; }
.cta-band p { font-size: 17px; color: rgba(255,255,255,.7); margin-bottom: 32px; }
.cta-band .phone-big {
  font-family: var(--serif);
  font-size: 44px;
  font-weight: 700;
  color: var(--gold-light);
  letter-spacing: 3px;
  margin-bottom: 30px;
}

/* ==========================================================================
   页脚
   ========================================================================== */
.footer { background: #161616; color: rgba(255,255,255,.6); padding: 70px 0 0; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 50px; padding-bottom: 50px; }
.footer .f-brand .logo { margin-bottom: 20px; }
.footer .f-brand .logo .logo-text .zh,
.footer .f-brand .logo .logo-text .en { color: var(--white); }
.footer .f-brand p { font-size: 14px; line-height: 1.9; color: rgba(255,255,255,.5); }
.footer h5 { font-family: var(--serif); color: var(--white); font-size: 17px; margin-bottom: 20px; letter-spacing: 1px; }
.footer .f-links li { margin-bottom: 12px; }
.footer .f-links li a { font-size: 14px; color: rgba(255,255,255,.55); }
.footer .f-links li a:hover { color: var(--gold-light); padding-left: 4px; }
.footer .f-contact li { font-size: 14px; margin-bottom: 14px; display: flex; gap: 10px; align-items: flex-start; color: rgba(255,255,255,.55); }
.footer .f-contact li .ico { color: var(--gold); flex-shrink: 0; margin-top: 3px; }
.footer .f-contact .phone { font-family: var(--serif); font-size: 24px; color: var(--gold-light); font-weight: 700; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.08);
  padding: 24px 0;
  text-align: center;
  font-size: 13px;
  color: rgba(255,255,255,.35);
}

/* ==========================================================================
   内页通用 banner
   ========================================================================== */
.page-banner {
  height: 320px;
  background: linear-gradient(135deg, var(--red-dark), #3a1010);
  display: flex; align-items: center; justify-content: center;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.page-banner::after {
  content: "";
  position: absolute; inset: 0;
  background-image: radial-gradient(circle at 20% 50%, rgba(192,160,98,.15), transparent 50%);
}
.page-banner .inner { position: relative; z-index: 2; color: var(--white); }
.page-banner h1 { font-family: var(--serif); font-size: 42px; letter-spacing: 4px; margin-bottom: 12px; }
.page-banner .crumbs { font-size: 14px; color: rgba(255,255,255,.6); }
.page-banner .crumbs a:hover { color: var(--gold-light); }

/* ==========================================================================
   滚动入场动画
   ========================================================================== */
.reveal { opacity: 0; transform: translateY(40px); transition: all .8s var(--ease); }
.reveal.visible { opacity: 1; transform: translateY(0); }
.reveal.delay-1 { transition-delay: .1s; }
.reveal.delay-2 { transition-delay: .2s; }
.reveal.delay-3 { transition-delay: .3s; }

/* ==========================================================================
   响应式
   ========================================================================== */
@media (max-width: 1024px) {
  .about-preview, .dept-intro { grid-template-columns: 1fr; gap: 40px; }
  .office-grid { grid-template-columns: repeat(2, 1fr); }
  .office-grid .office-item.featured { grid-column: span 2; grid-row: auto; }
  .office-grid .office-item.featured img { min-height: 260px; }
  .news-grid { grid-template-columns: repeat(2, 1fr); }
  .news-page-grid { grid-template-columns: 1fr; }
  .cert-grid { grid-template-columns: repeat(3, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 36px; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 40px 20px; }
  .stats-grid .stat::after { display: none; }
}

@media (max-width: 768px) {
  section { padding: 60px 0; }
  .sec-head h2 { font-size: 28px; }
  .topbar { display: none; }
  .nav-menu {
    position: fixed;
    top: 78px; right: 0;
    width: 75%; max-width: 320px;
    height: calc(100vh - 78px);
    background: var(--white);
    flex-direction: column;
    align-items: stretch;
    padding: 24px;
    gap: 0;
    transform: translateX(100%);
    transition: transform .35s var(--ease);
    box-shadow: -8px 0 30px rgba(0,0,0,.12);
    overflow-y: auto;
  }
  .nav-menu.open { transform: translateX(0); }
  .nav-menu > li > a { padding: 16px 12px; border-bottom: 1px solid var(--paper-2); }
  .nav-cta { margin: 16px 0 0; text-align: center; }
  .menu-toggle { display: block; }
  .banner { height: 440px; }
  .banner-slide .copy h2 { font-size: 30px; }
  .banner-slide .copy p { font-size: 15px; }
  .banner-arrow { display: none; }
  .about-preview .text h2, .dept-intro .text h2 { font-size: 26px; }
  .about-preview .img-wrap .badge { width: 110px; height: 110px; }
  .about-preview .img-wrap .badge .num { font-size: 30px; }
  .dept-intro .features { grid-template-columns: 1fr; }
  .office-grid { grid-template-columns: 1fr; }
  .news-grid { grid-template-columns: 1fr; }
  .cert-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .cert-img { height: 180px; }
  .news-list-item { grid-template-columns: 1fr; }
  .news-list-item .body { padding: 20px; }
  .footer-grid { grid-template-columns: 1fr; }
  .cta-band h2, .page-banner h1 { font-size: 30px; }
  .stats-grid .stat .num { font-size: 40px; }
}