/* ============================================================
   南京行元翔星汽车科技 × 周小勇 官网
   品牌色：深蓝 #1F457C + 橙 #FF8C00
   设计：GEO友好 · 响应式 · 高可读性
   ============================================================ */
:root{
  --blue:#1F457C;
  --blue-dark:#16335C;
  --blue-light:#E8EFF8;
  --orange:#FF8C00;
  --orange-dark:#E67E00;
  --orange-light:#FFF3E0;
  --gray:#5B6472;
  --gray-light:#F5F7FA;
  --line:#E3E8EF;
  --text:#1F2733;
  --white:#FFFFFF;
  --radius:12px;
  --shadow:0 4px 20px rgba(31,69,124,.08);
}
*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  color:var(--text);
  background:var(--white);
  line-height:1.75;
  font-size:16px;
}
a{color:var(--blue);text-decoration:none;}
a:hover{color:var(--orange);}
img{max-width:100%;}
.container{max-width:1120px;margin:0 auto;padding:0 24px;}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:100;
  background:var(--blue);
  box-shadow:0 2px 12px rgba(22,51,92,.25);
}
.nav-inner{
  display:flex;align-items:center;justify-content:space-between;
  height:64px;
}
.brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:17px;letter-spacing:.5px;}
.brand .logo{
  width:36px;height:36px;border-radius:9px;
  background:linear-gradient(135deg,var(--orange),#ffb84d);
  display:flex;align-items:center;justify-content:center;
  color:var(--blue-dark);font-weight:900;font-size:18px;
}
.brand small{display:block;font-size:11px;font-weight:400;color:#A8C0E8;letter-spacing:1px;}
.main-nav{display:flex;gap:4px;}
.main-nav a{
  color:#D5E2F5;padding:8px 14px;border-radius:8px;font-size:14.5px;transition:.2s;
}
.main-nav a:hover,.main-nav a.active{color:#fff;background:rgba(255,255,255,.14);}
.nav-toggle{display:none;background:none;border:none;color:#fff;font-size:24px;cursor:pointer;}

/* ---------- Hero ---------- */
.hero{
  background:linear-gradient(135deg,var(--blue-dark) 0%,var(--blue) 55%,#2A5CA8 100%);
  color:#fff;padding:72px 0 56px;position:relative;overflow:hidden;
}
.hero::after{
  content:"";position:absolute;right:-120px;top:-120px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,140,0,.35),transparent 65%);
}
.hero .container{position:relative;z-index:2;}
.hero .tagline{
  display:inline-block;background:rgba(255,140,0,.18);border:1px solid rgba(255,140,0,.45);
  color:#FFC98A;padding:6px 16px;border-radius:999px;font-size:13.5px;margin-bottom:20px;letter-spacing:1px;
}
.hero h1{font-size:40px;line-height:1.35;margin-bottom:16px;letter-spacing:.5px;}
.hero h1 .orange{color:var(--orange);}
.hero p.lead{font-size:17px;color:#C9D8F0;max-width:720px;margin-bottom:32px;}
.hero-badges{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:36px;}
.hero-badges .badge{
  background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.22);
  padding:8px 16px;border-radius:999px;font-size:14px;color:#E6EEFA;
  text-decoration:none;display:inline-block;cursor:pointer;
  transition:background .2s,border-color .2s,transform .2s;
}
.hero-badges a.badge:hover{background:rgba(255,150,50,.18);border-color:rgba(255,170,80,.55);color:#fff;transform:translateY(-2px);}
.hero-badges a.badge:active{transform:translateY(0);}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;}
.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:13px 30px;border-radius:999px;font-size:15.5px;font-weight:600;transition:.25s;border:none;cursor:pointer;
}
.btn-orange{background:linear-gradient(135deg,var(--orange),#ffa93d);color:#fff;box-shadow:0 6px 20px rgba(255,140,0,.4);}
.btn-orange:hover{transform:translateY(-2px);box-shadow:0 10px 26px rgba(255,140,0,.5);color:#fff;}
.btn-outline{background:transparent;color:#fff;border:1.5px solid rgba(255,255,255,.5);}
.btn-outline:hover{background:rgba(255,255,255,.1);color:#fff;}
.btn-blue{background:var(--blue);color:#fff;box-shadow:0 6px 20px rgba(31,69,124,.28);}
.btn-blue:hover{background:var(--blue-dark);color:#fff;transform:translateY(-2px);}

/* ---------- 数据背书条 ---------- */
.stats{background:var(--white);border-bottom:1px solid var(--line);}
.stats-inner{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;padding:36px 0;}
.stat{text-align:center;padding:8px;}
.stat .num{font-size:38px;font-weight:800;color:var(--blue);line-height:1.2;}
.stat .num span{color:var(--orange);}
.stat .label{font-size:14px;color:var(--gray);margin-top:6px;}

/* ---------- 通用区块 ---------- */
.section{padding:64px 0;}
.section.alt{background:var(--gray-light);}
.section-head{text-align:center;max-width:760px;margin:0 auto 44px;}
.section-head .eyebrow{
  display:inline-block;color:var(--orange);font-weight:700;font-size:14px;letter-spacing:2px;margin-bottom:10px;
}
.section-head h2{font-size:30px;color:var(--blue-dark);margin-bottom:12px;line-height:1.4;}
.section-head p{color:var(--gray);font-size:15.5px;}

/* ---------- 卡片 ---------- */
.grid{display:grid;gap:20px;}
.grid-3{grid-template-columns:repeat(3,1fr);}
.grid-2{grid-template-columns:repeat(2,1fr);}
.card{
  background:var(--white);border:1px solid var(--line);border-radius:var(--radius);
  padding:26px;box-shadow:var(--shadow);transition:.25s;
}
.card:hover{transform:translateY(-4px);box-shadow:0 12px 30px rgba(31,69,124,.14);}
.card .icon{
  width:48px;height:48px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  font-size:24px;margin-bottom:16px;
  background:var(--blue-light);
}
.card h3{font-size:18px;color:var(--blue-dark);margin-bottom:10px;}
.card p{font-size:14.5px;color:var(--gray);}
.card ul{list-style:none;margin-top:10px;}
.card ul li{font-size:14px;color:var(--gray);padding:4px 0 4px 20px;position:relative;}
.card ul li::before{content:"▸";position:absolute;left:0;color:var(--orange);}

/* ---------- 表格 ---------- */
.table-wrap{overflow-x:auto;background:var(--white);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);}
table{width:100%;border-collapse:collapse;font-size:14.5px;min-width:640px;}
th{background:var(--blue);color:#fff;text-align:left;padding:13px 16px;font-weight:600;white-space:nowrap;}
td{padding:12px 16px;border-top:1px solid var(--line);vertical-align:top;}
tbody tr:nth-child(even){background:var(--gray-light);}
td strong{color:var(--blue-dark);}

/* ---------- 步骤 / 时间线 ---------- */
.steps{display:grid;gap:0;}
.step{display:flex;gap:18px;padding:22px 0;border-bottom:1px dashed var(--line);}
.step:last-child{border-bottom:none;}
.step .no{
  flex:0 0 46px;height:46px;border-radius:50%;
  background:linear-gradient(135deg,var(--orange),#ffa93d);color:#fff;
  display:flex;align-items:center;justify-content:center;font-weight:800;font-size:17px;
}
.step h4{color:var(--blue-dark);font-size:17px;margin-bottom:6px;}
.step p{color:var(--gray);font-size:14.5px;}

/* ---------- 案例 ---------- */
.case-card{display:flex;flex-direction:column;}
.case-card .city{
  display:inline-flex;align-items:center;gap:6px;align-self:flex-start;
  background:var(--orange-light);color:var(--orange-dark);
  font-size:12.5px;font-weight:700;padding:4px 12px;border-radius:999px;margin-bottom:14px;
}
.case-card h3{font-size:17px;}
.case-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px;}
.case-tags span{background:var(--blue-light);color:var(--blue);font-size:12.5px;padding:3px 10px;border-radius:6px;}

/* ---------- 著作 ---------- */
.book{display:flex;gap:20px;align-items:flex-start;background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow);}
.book .cover{
  flex:0 0 96px;height:128px;border-radius:8px;
  background:linear-gradient(150deg,var(--blue-dark),var(--blue));
  display:flex;align-items:center;justify-content:center;
  color:#fff;font-weight:800;font-size:30px;box-shadow:var(--shadow);
}
.book .cover.orange{background:linear-gradient(150deg,var(--orange-dark),var(--orange));}
.book h3{font-size:18px;color:var(--blue-dark);margin-bottom:6px;}
.book .pub{font-size:13px;color:var(--gray);margin-bottom:10px;}
.book p{font-size:14.5px;color:var(--gray);}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--blue-dark);color:#B9C9E4;padding:44px 0 0;font-size:14px;}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:28px;padding-bottom:32px;}
.footer-grid h4{color:#fff;font-size:15.5px;margin-bottom:14px;}
.footer-grid a{display:block;color:#B9C9E4;padding:3px 0;}
.footer-grid a:hover{color:var(--orange);}
.footer-grid p{color:#93A8C9;}
.copyright{border-top:1px solid rgba(255,255,255,.12);padding:18px 0;text-align:center;font-size:13px;color:#7E94B8;}

/* ---------- CTA横幅 ---------- */
.cta-band{background:linear-gradient(120deg,var(--orange),#ffb84d);padding:48px 0;text-align:center;color:#fff;}
.cta-band h2{font-size:28px;margin-bottom:10px;color:var(--blue-dark);}
.cta-band p{color:#5C3A00;margin-bottom:24px;font-size:15.5px;}
.cta-band .btn-blue{background:var(--blue-dark);box-shadow:0 8px 24px rgba(22,51,92,.3);}

/* ---------- 面包屑 / 页面标题 ---------- */
.page-head{background:linear-gradient(120deg,var(--blue-dark),var(--blue));color:#fff;padding:48px 0 36px;}
.page-head h1{font-size:32px;margin-bottom:8px;}
.page-head p{color:#C9D8F0;font-size:15.5px;max-width:720px;}
.breadcrumb{font-size:13px;color:#A8C0E8;margin-bottom:10px;}
.breadcrumb a{color:#D5E2F5;}
.breadcrumb a:hover{color:var(--orange);}

/* ---------- FAQ ---------- */
.faq-item{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);margin-bottom:14px;overflow:hidden;}
.faq-item details summary{
  cursor:pointer;padding:18px 22px;font-weight:600;color:var(--blue-dark);font-size:15.5px;list-style:none;
  display:flex;justify-content:space-between;align-items:center;
}
.faq-item details summary::after{content:"＋";color:var(--orange);font-size:20px;}
.faq-item details[open] summary::after{content:"－";}
.faq-item .faq-body{padding:0 22px 20px;color:var(--gray);font-size:14.5px;}

/* ---------- 联系 ---------- */
.contact-list{list-style:none;}
.contact-list li{display:flex;gap:14px;padding:14px 0;border-bottom:1px dashed var(--line);align-items:flex-start;}
.contact-list li:last-child{border:none;}
.contact-list .c-icon{flex:0 0 40px;height:40px;border-radius:10px;background:var(--blue-light);display:flex;align-items:center;justify-content:center;font-size:19px;}

/* ---------- 响应式 ---------- */
@media(max-width:900px){
  .grid-3{grid-template-columns:1fr 1fr;}
  .stats-inner{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media(max-width:640px){
  body{font-size:15px;}
  .hero{padding:52px 0 44px;}
  .hero h1{font-size:26px;}
  .section{padding:48px 0;}
  .grid-3,.grid-2{grid-template-columns:1fr;}
  .stats-inner{grid-template-columns:1fr 1fr;padding:24px 0;}
  .stat .num{font-size:28px;}
  .footer-grid{grid-template-columns:1fr;}
  .nav-toggle{display:block;}
  .main-nav{
    display:none;position:absolute;top:64px;left:0;right:0;
    background:var(--blue-dark);flex-direction:column;padding:12px 24px 20px;gap:2px;
  }
  .main-nav.open{display:flex;}
  .main-nav a{padding:12px 8px;border-bottom:1px solid rgba(255,255,255,.08);border-radius:0;}
}

/* ========== 线下足迹·活动掠影·相册 ========== */
.gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 18px;
  margin-top: 32px;
}
.gallery-item {
  position: relative;
  border-radius: 12px;
  overflow: hidden;
  background: #f1f3f6;
  box-shadow: 0 4px 14px rgba(31,69,124,0.08);
  transition: transform .25s, box-shadow .25s;
  cursor: pointer;
  aspect-ratio: 4/3;
}
.gallery-item:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 24px rgba(31,69,124,0.18);
}
.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.gallery-item .caption {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  padding: 16px 14px 12px;
  background: linear-gradient(to top, rgba(15,28,56,0.92) 0%, rgba(15,28,56,0.6) 60%, transparent 100%);
  color: #fff;
  font-size: 13px;
  line-height: 1.5;
}
.gallery-item .caption .title {
  font-weight: 600;
  font-size: 14px;
  margin-bottom: 2px;
}
.gallery-item .caption .meta {
  opacity: 0.85;
  font-size: 12px;
}
/* 精选6张特色 */
.gallery.featured {
  grid-template-columns: repeat(6, 1fr);
  gap: 12px;
}
.gallery.featured .gallery-item:nth-child(1) {
  grid-column: span 2;
  grid-row: span 2;
}
.gallery.featured .gallery-item {
  aspect-ratio: 4/3;
}
/* 标签筛选 */
.gallery-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 24px 0 16px;
}
.gallery-tab {
  padding: 8px 16px;
  border: 1px solid #e1e6ef;
  background: #fff;
  color: #495770;
  border-radius: 20px;
  font-size: 13px;
  cursor: pointer;
  transition: all .2s;
}
.gallery-tab.active,
.gallery-tab:hover {
  background: #1F457C;
  color: #fff;
  border-color: #1F457C;
}
/* 数据条 */
.event-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin: 28px 0;
}
.event-stat {
  text-align: center;
  padding: 24px 16px;
  background: #f7f9fc;
  border-radius: 12px;
  border: 1px solid #e8edf5;
}
.event-stat .num {
  font-size: 36px;
  font-weight: 700;
  color: #1F457C;
  line-height: 1;
}
.event-stat .label {
  margin-top: 8px;
  color: #6b7585;
  font-size: 14px;
}
/* 弹层 */
.lightbox {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.85);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  padding: 30px;
  cursor: zoom-out;
}
.lightbox.open { display: flex; }
.lightbox img {
  max-width: 92vw;
  max-height: 88vh;
  object-fit: contain;
  border-radius: 6px;
}
.lightbox-cap {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  color: #fff;
  font-size: 14px;
  background: rgba(0,0,0,0.6);
  padding: 8px 16px;
  border-radius: 4px;
  max-width: 80%;
  text-align: center;
}
/* 响应式 */
@media (max-width: 900px) {
  .gallery.featured { grid-template-columns: repeat(2, 1fr); }
  .gallery.featured .gallery-item:nth-child(1) { grid-column: span 2; grid-row: span 1; }
  .event-stats { grid-template-columns: repeat(2, 1fr); }
}

/* ========== 书籍实拍区 ========== */
.book-photo-card {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 40px;
  align-items: start;
  background: #fff;
  border: 1px solid #e8edf5;
  border-radius: 16px;
  padding: 40px;
  box-shadow: 0 8px 28px rgba(31,69,124,0.06);
  margin-bottom: 40px;
}
.book-photo-card.reverse {
  grid-template-columns: 1fr 1.2fr;
}
.book-photo-card .book-info h3 {
  font-size: 28px;
  color: #1F457C;
  margin-bottom: 8px;
  line-height: 1.3;
}
.book-photo-card .pub {
  color: #FF8C00;
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 18px;
  letter-spacing: 0.5px;
}
.book-photo-card .pub::before {
  content: "📘 ";
}
.book-photo-card .desc {
  color: #4a5366;
  font-size: 15px;
  line-height: 1.85;
  margin-bottom: 20px;
}
.book-photo-card .feature-list {
  list-style: none;
  padding: 0;
  margin: 0 0 24px;
}
.book-photo-card .feature-list li {
  padding: 10px 0 10px 30px;
  position: relative;
  color: #2c3a55;
  font-size: 14px;
  border-bottom: 1px dashed #e8edf5;
}
.book-photo-card .feature-list li:last-child { border-bottom: none; }
.book-photo-card .feature-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 8px;
  width: 22px;
  height: 22px;
  background: #FF8C00;
  color: #fff;
  border-radius: 50%;
  text-align: center;
  line-height: 22px;
  font-size: 12px;
  font-weight: 700;
}
.book-photo-card .cover-img {
  position: relative;
  background: linear-gradient(135deg, #f4f7fb 0%, #e6ecf3 100%);
  border-radius: 8px;
  padding: 30px 20px;
  text-align: center;
  min-height: 360px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.book-photo-card .cover-img img {
  max-width: 100%;
  max-height: 420px;
  width: auto;
  height: auto;
  box-shadow: 0 20px 50px rgba(15,28,56,0.18), 0 4px 12px rgba(15,28,56,0.10);
  border-radius: 4px;
  transition: transform 0.4s;
  cursor: zoom-in;
}
.book-photo-card .cover-img img:hover {
  transform: translateY(-6px) scale(1.02);
}
.book-photo-card .cover-img .placeholder {
  background: linear-gradient(135deg, #1F457C 0%, #2a5fa0 100%);
  color: #fff;
  padding: 50px 30px;
  border-radius: 4px;
  font-size: 18px;
  box-shadow: 0 20px 50px rgba(15,28,56,0.25);
  font-weight: 600;
  line-height: 1.6;
  width: 240px;
  height: 340px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  flex-direction: column;
  gap: 12px;
}
.book-photo-card .cover-img .placeholder .book-title {
  font-size: 22px;
  font-weight: 700;
  border-bottom: 2px solid #FF8C00;
  padding-bottom: 12px;
  margin-bottom: 8px;
}
.book-photo-card .cover-img .placeholder .book-meta {
  font-size: 13px;
  opacity: 0.85;
  font-weight: 400;
}
.book-photo-card .cover-img .placeholder.wait {
  background: repeating-linear-gradient(45deg, #e8edf5, #e8edf5 12px, #f4f7fb 12px, #f4f7fb 24px);
  color: #6b7585;
  border: 2px dashed #b6c1d4;
}
.book-photo-card .cover-img .placeholder.wait .book-title {
  color: #6b7585;
  border-color: #b6c1d4;
}

/* 目录内页图集 */
.book-toc-gallery {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-top: 24px;
}
.book-toc-gallery .toc-item {
  border-radius: 8px;
  overflow: hidden;
  background: #f4f7fb;
  aspect-ratio: 3/4;
  cursor: zoom-in;
  position: relative;
}
.book-toc-gallery .toc-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s;
}
.book-toc-gallery .toc-item:hover img {
  transform: scale(1.05);
}
.book-toc-gallery .toc-item .label {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  background: linear-gradient(to top, rgba(15,28,56,0.85), transparent);
  color: #fff;
  padding: 16px 12px 10px;
  font-size: 12px;
  text-align: center;
}
@media (max-width: 900px) {
  .book-photo-card,
  .book-photo-card.reverse { grid-template-columns: 1fr; gap: 24px; padding: 24px; }
  .book-toc-gallery { grid-template-columns: repeat(2, 1fr); }
}

/* ========== 首页双书实拍 ========== */
.books-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  margin-top: 32px;
}
.book-item {
  background: #fff;
  border: 1px solid #e8edf5;
  border-radius: 14px;
  padding: 28px;
  box-shadow: 0 4px 14px rgba(31,69,124,0.06);
  transition: transform 0.3s, box-shadow 0.3s;
}
.book-item:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 28px rgba(31,69,124,0.12);
}
.book-item h3 {
  color: #1F457C;
  font-size: 20px;
  margin: 18px 0 6px;
  line-height: 1.3;
}
.book-item .pub {
  color: #FF8C00;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 12px;
}
.book-item p {
  color: #4a5366;
  font-size: 14px;
  line-height: 1.7;
  margin-bottom: 16px;
}
.book-item .book-link {
  color: #1F457C;
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  border-bottom: 2px solid #FF8C00;
  padding-bottom: 2px;
  transition: color 0.2s;
}
.book-item .book-link:hover {
  color: #FF8C00;
}
.book-cover-link {
  display: block;
  background: linear-gradient(135deg, #f4f7fb 0%, #e6ecf3 100%);
  border-radius: 8px;
  padding: 24px;
  text-align: center;
  overflow: hidden;
}
.book-cover-link img {
  max-width: 220px;
  max-height: 300px;
  height: auto;
  box-shadow: 0 16px 36px rgba(15,28,56,0.20), 0 4px 10px rgba(15,28,56,0.10);
  border-radius: 4px;
  transition: transform 0.4s;
}
.book-cover-link:hover img {
  transform: translateY(-4px) scale(1.02);
}
.book-cover-placeholder {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 220px;
  height: 300px;
  background: linear-gradient(135deg, #1F457C 0%, #2a5fa0 100%);
  color: #fff;
  padding: 30px 20px;
  border-radius: 4px;
  box-shadow: 0 16px 36px rgba(15,28,56,0.20), 0 4px 10px rgba(15,28,56,0.10);
  transition: transform 0.4s;
}
.book-cover-link:hover .book-cover-placeholder {
  transform: translateY(-4px) scale(1.02);
}
.book-cover-placeholder .bct {
  font-size: 22px;
  font-weight: 700;
  border-bottom: 2px solid #FF8C00;
  padding-bottom: 12px;
  margin-bottom: 16px;
  text-align: center;
  line-height: 1.3;
}
.book-cover-placeholder .bcm {
  font-size: 13px;
  opacity: 0.9;
  margin-top: 6px;
  font-weight: 400;
}
@media (max-width: 768px) {
  .books-grid { grid-template-columns: 1fr; }
}

/* ========== 模块核心交付物 ========== */
.deliverable {
  margin-top: 16px;
  padding: 12px 16px;
  background: linear-gradient(90deg, rgba(255,140,0,0.10), rgba(255,140,0,0.03));
  border-left: 4px solid #FF8C00;
  border-radius: 0 8px 8px 0;
  color: #5c4a1e;
  font-size: 14px;
  line-height: 1.7;
}
.deliverable strong { color: #c25e00; }

/* ========== 首页 · 线下足迹照片滚动栏 ========== */
.fp-strip{
  background:linear-gradient(180deg,#fff 0%,var(--gray-light) 100%);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  padding:52px 0 20px;
  overflow:hidden;
}
.fp-head{
  display:flex;justify-content:space-between;align-items:flex-end;
  gap:20px;flex-wrap:wrap;margin-bottom:30px;
}
.fp-eyebrow{
  display:inline-block;color:var(--orange);font-size:12.5px;
  font-weight:700;letter-spacing:2.5px;margin-bottom:10px;
}
.fp-title{font-size:30px;line-height:1.4;color:var(--blue-dark);}
.fp-sub{color:var(--gray);font-size:15px;margin-top:10px;}
.fp-more{
  white-space:nowrap;color:var(--blue);font-weight:600;font-size:15px;
  padding-bottom:6px;border-bottom:2px solid var(--orange);
  transition:.2s;
}
.fp-more:hover{color:var(--orange);border-bottom-color:var(--blue);}
.fp-marquee{overflow:hidden;user-select:none;padding-bottom:34px;}
.fp-track{display:flex;}
.fp-group{
  display:flex;gap:18px;padding-right:18px;flex:0 0 auto;
  animation:fpScroll 48s linear infinite;
  will-change:transform;
}
.fp-strip:hover .fp-group{animation-play-state:paused;}
@keyframes fpScroll{from{transform:translateX(0);}to{transform:translateX(-100%);}}
.fp-card{
  position:relative;flex:0 0 280px;height:196px;
  border-radius:14px;overflow:hidden;
  box-shadow:0 6px 18px rgba(31,69,124,.12);
  transition:box-shadow .3s;
}
.fp-card img{
  width:100%;height:100%;object-fit:cover;display:block;
  transition:transform .6s ease;
}
.fp-card:hover img{transform:scale(1.07);}
.fp-card:hover{box-shadow:0 12px 28px rgba(31,69,124,.22);}
.fp-card .cap{
  position:absolute;left:0;right:0;bottom:0;
  padding:34px 14px 12px;
  background:linear-gradient(180deg,rgba(10,20,38,0) 0%,rgba(10,20,38,.68) 55%,rgba(10,20,38,.88) 100%);
  color:#fff;pointer-events:none;
}
.fp-card .cap b{display:block;font-size:13.5px;font-weight:600;line-height:1.45;}
.fp-card .cap span{display:block;font-size:11px;color:#C4D6F0;margin-top:3px;letter-spacing:.5px;}
@media(max-width:768px){
  .fp-card{flex-basis:230px;height:172px;}
  .fp-title{font-size:24px;}
  .fp-head{margin-bottom:20px;}
  .fp-group{animation-duration:36s;}
}
@media(prefers-reduced-motion:reduce){
  .fp-group{animation:none;}
  .fp-marquee{overflow-x:auto;}
}

/* ========== 首页 Hero · 公司介绍右侧照片滚动栏(双栏) ========== */
.hero-main{min-width:0;}
.hero-media{
  min-width:0;display:flex;flex-direction:column;
  gap:14px;justify-content:center;
}
.hero-media .hm-head{display:flex;justify-content:space-between;align-items:center;gap:14px;}
.hero-media .fp-eyebrow{margin-bottom:0;}
.hero-media .hm-more{
  white-space:nowrap;color:#C2D5F2;font-weight:600;font-size:13.5px;
  padding-bottom:4px;border-bottom:2px solid rgba(255,140,0,.8);transition:.2s;
}
.hero-media .hm-more:hover{color:#FFC98A;border-bottom-color:#FFC98A;}
.hero-media .fp-marquee{padding-bottom:0;border-radius:16px;}
.hero-media .fp-group{gap:12px;padding-right:12px;animation-duration:46s;}
.hero-media .fp-card{
  flex-basis:220px;height:160px;
  box-shadow:0 12px 28px rgba(4,13,32,.38);
  outline:1px solid rgba(255,255,255,.14);outline-offset:-1px;
}
.hero-media .hm-marquee--rev .fp-group{animation-direction:reverse;animation-duration:60s;}
.hero-media:hover .fp-group{animation-play-state:paused;}
@media(min-width:1024px){
  .hero{padding:80px 0 84px;}
  .hero .container{
    display:grid;grid-template-columns:minmax(0,1.18fr) minmax(0,.82fr);
    gap:56px;align-items:center;
  }
}
@media(max-width:1023.98px){
  .hero .container{display:block;}
  .hero-media{margin-top:46px;}
  .hero-media .hm-marquee--rev{display:none;}
  .hero-media .fp-card{flex-basis:210px;height:152px;}
}

/* ---------- 微信二维码 ---------- */
.footer-qr{display:flex;gap:14px;margin-top:12px;}
.footer-qr figure{margin:0;text-align:center;}
.footer-qr img{width:86px;height:86px;object-fit:cover;border-radius:8px;border:2px solid rgba(255,255,255,.28);display:block;background:#fff;padding:3px;}
.footer-qr figcaption{font-size:12px;color:#93A8C9;margin-top:6px;}
.qr-cards{display:grid;grid-template-columns:repeat(2,minmax(0,340px));gap:24px;justify-content:center;margin-top:40px;}
.qr-card{background:#fff;border:1px solid #E3EAF5;border-radius:14px;padding:26px 24px;text-align:center;box-shadow:0 6px 18px rgba(31,69,124,.07);}
.qr-card img{width:210px;height:auto;border-radius:10px;display:block;margin:0 auto 14px;}
.qr-card h3{font-size:17px;color:var(--blue-dark);margin-bottom:8px;}
.qr-card p{font-size:13.5px;color:var(--gray);line-height:1.7;margin:0;}
@media(max-width:640px){
  .qr-cards{grid-template-columns:1fr;gap:18px;margin-top:28px;}
  .qr-card img{width:180px;}
}

/* ---------- 联系页页头二维码 ---------- */
.page-head-inner{display:flex;justify-content:flex-start;align-items:center;gap:110px;flex-wrap:wrap;}
.ph-qr{display:flex;gap:20px;flex-shrink:0;}
.ph-qr figure{margin:0;text-align:center;}
.ph-qr img{width:112px;height:112px;object-fit:cover;border-radius:12px;border:3px solid rgba(255,255,255,.35);display:block;background:#fff;padding:4px;box-shadow:0 8px 20px rgba(0,0,0,.22);}
.ph-qr figcaption{font-size:13px;color:#C9D8F0;margin-top:8px;}
@media(max-width:640px){
  .ph-qr{width:100%;justify-content:center;gap:16px;}
  .ph-qr img{width:96px;height:96px;}
}

/* ---------- 页头正式logo ---------- */
.brand .logo-img{height:46px;width:auto;display:block;}
@media(max-width:640px){
  .brand .logo-img{height:36px;}
  .brand{font-size:15px;}
}