/* ==========================================================================
   江苏新驰建设 — 设计系统 v2（垂直流式 + 图片优先卡片）
   品牌色：#F09600 新驰橙（从真实 Logo 提取）
   布局原则：禁止多主模块并排，采用垂直节奏与视觉层次
   来源：templates/base/design-language.md（Astroship MIT 设计语言原创实现）
   ========================================================================== */
:root {
  --color-brand: #F09600;
  --color-brand-hover: #C47B00;
  --color-brand-soft: #FDF4E5;

  --color-bg: #FFFFFF;
  --color-surface: #F7F9FC;
  --color-text: #1A2233;
  --color-text-muted: #5B6678;
  --color-border: #E3E8F0;

  --radius: 12px;
  --radius-lg: 16px;
  --maxw: 1120px;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-sans); color: var(--color-text); background: var(--color-bg);
  line-height: 1.7; font-size: 16px; -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
.container { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

/* ---------- 顶部导航 ---------- */
.nav { position: sticky; top: 0; z-index: 50; background: rgba(255,255,255,.95);
  backdrop-filter: saturate(160%) blur(8px); border-bottom: 1px solid var(--color-border); }
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 80px; }
.brand-mark { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 18px; letter-spacing: -.02em; }
.brand-mark .dot { width: 28px; height: 28px; border-radius: 8px; background: var(--color-brand); color: #fff;
  display: grid; place-items: center; font-size: 14px; font-weight: 800; }
.brand-mark .nav-logo { height: 80px; width: auto; object-fit: contain; }
.nav-links { display: flex; gap: 28px; align-items: center; }
.nav-links a { color: var(--color-text-muted); font-size: 15px; font-weight: 500; transition: color .15s; }
.nav-links a:hover, .nav-links a.active { color: var(--color-brand); }
.nav-cta { background: var(--color-brand); color: #fff; padding: 9px 18px; border-radius: 999px; font-size: 14px; font-weight: 600; transition: background .15s; }
.nav-cta:hover { background: var(--color-brand-hover); }

/* ---------- 按钮 ---------- */
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 13px 26px; border-radius: 999px;
  font-weight: 600; font-size: 15px; transition: background .15s, color .15s, border-color .15s; cursor: pointer; }
.btn-primary { background: var(--color-brand); color: #fff; }
.btn-primary:hover { background: var(--color-brand-hover); }
.btn-ghost { background: transparent; color: var(--color-brand); border: 1px solid var(--color-brand); }
.btn-ghost:hover { background: var(--color-brand-soft); }

/* ========== Hero（首页全宽纵向） ========== */
.hero { position: relative; padding: 80px 0 60px; background: linear-gradient(180deg, var(--color-surface) 0%, #fff 100%); min-height: auto; }
.hero.centered { text-align: center; }
.hero.centered .hero-actions { justify-content: center; }
.hero.centered p.lead { margin-left: auto; margin-right: auto; }

/* ====== 全屏Hero背景图模式 ====== */
.hero-fullscreen {
  position: relative;
  min-height: 100vh;
  padding: 0;
  margin-bottom: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: visible;
  background: #1A2233;
}

/* 轮播容器 */
.hero-carousel {
  position: absolute;
  inset: 0;
  z-index: 1;
}

/* 轮播幻灯片 */
.hero-slide {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center center;
  background-repeat: no-repeat;
  opacity: 0;
  transition: opacity 1.5s ease-in-out;
}

.hero-slide.active {
  opacity: 1;
}

/* 轮播指示器 */
.carousel-indicators {
  position: absolute;
  bottom: 80px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 12px;
  z-index: 10;
}

.indicator {
  width: 40px;
  height: 4px;
  background: rgba(255, 255, 255, 0.4);
  border-radius: 2px;
  cursor: pointer;
  transition: all 0.3s ease;
}

.indicator.active {
  background: #F09600;
  width: 60px;
}

.indicator:hover {
  background: rgba(255, 255, 255, 0.7);
}

.hero-fullscreen::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 60%, rgba(0,0,0,0.25) 100%);
  z-index: 2;
  pointer-events: none;
}
.hero-fullscreen .container {
  position: relative;
  z-index: 3;
  padding-top: 100px;
  padding-bottom: 60px;
}
.hero-fullscreen .eyebrow {
  color: #F09600;
  background: rgba(240,150,0,0.15);
  border: 1px solid rgba(240,150,0,0.3);
}
.hero-fullscreen h1 {
  color: #FFFFFF;
}
.hero-fullscreen h1 .accent {
  color: #F09600;
}
.hero-fullscreen p.lead {
  color: rgba(255,255,255,0.75);
}
.hero-fullscreen .btn-primary {
  background: #E8740C;
  border-color: #E8740C;
}
.hero-fullscreen .btn-primary:hover {
  background: #C47B00;
  border-color: #C47B00;
}
.hero-fullscreen .btn-ghost {
  color: #FFFFFF;
  border-color: rgba(255,255,255,0.5);
}
.hero-fullscreen .btn-ghost:hover {
  background: rgba(255,255,255,0.1);
  border-color: rgba(255,255,255,0.8);
}
/* 全屏Hero底部数据条 */
.hero-fullscreen .stats {
  margin-top: 56px;
}
.hero-fullscreen .stat {
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.12);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}
.hero-fullscreen .stat .num {
  color: #F09600;
}
.hero-fullscreen .stat .lbl {
  color: rgba(255,255,255,0.6);
}

/* 独立数据条区域（Hero下方） */
.stats-bar {
  position: relative;
  z-index: 5;
  margin-top: 40px;
  background: linear-gradient(135deg, #1a2a3a 0%, #2d3e50 100%);
  padding: 48px 0;
}
.stats-bar .stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  max-width: 1000px;
  margin: 0 auto;
}
.stats-bar .stat {
  text-align: center;
  padding: 20px;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 12px;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  transition: transform 0.3s ease, background 0.3s ease;
  text-decoration: none;
  display: block;
  cursor: pointer;
}
.stats-bar .stat-clickable:hover {
  transform: translateY(-4px);
  background: rgba(255,255,255,0.08);
  border-color: rgba(240,150,0,0.3);
}
.stats-bar .stat .num {
  font-size: 36px;
  font-weight: 700;
  color: #F09600;
  margin-bottom: 8px;
  font-family: 'DIN', 'Roboto', sans-serif;
}
.stats-bar .stat .lbl {
  font-size: 14px;
  color: rgba(255,255,255,0.7);
  letter-spacing: 0.5px;
}

@media (max-width: 768px) {
  .stats-bar .stats {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }
  .stats-bar .stat .num {
    font-size: 28px;
  }
}
/* 全屏Hero导航栏适配 */
.nav-transparent {
  background: rgba(0, 0, 0, 0.35) !important;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(255,255,255,0.08) !important;
  box-shadow: none !important;
}
.nav-transparent .nav-links a {
  color: rgba(255,255,255,0.85);
}
.nav-transparent .nav-links a:hover {
  color: #FFFFFF;
}
.nav-transparent .brand-mark {
  color: #FFFFFF;
}
.nav-transparent .nav-logo {
  filter: brightness(0) invert(1);
}
.nav-transparent .nav-cta {
  background: #E8740C;
  border-color: #E8740C;
  color: #FFFFFF;
}
/* 滚动后实底导航 */
.nav-solid {
  background: #FFFFFF !important;
  border-bottom: 1px solid var(--color-border) !important;
  box-shadow: 0 2px 12px rgba(0,0,0,.06) !important;
  transition: background 0.3s ease, box-shadow 0.3s ease;
}
.nav-solid .nav-links a {
  color: var(--color-text) !important;
}
.nav-solid .brand-mark {
  color: var(--color-text) !important;
}
.nav-solid .nav-logo {
  filter: none !important;
}
.nav-solid .nav-cta {
  background: #E8740C !important;
  border-color: #E8740C !important;
  color: #FFFFFF !important;
}
.nav {
  transition: background 0.3s ease, box-shadow 0.3s ease;
}

.eyebrow { display: inline-block; font-size: 13px; font-weight: 700; letter-spacing: .08em;
  color: var(--color-brand); background: var(--color-brand-soft); padding: 6px 14px; border-radius: 999px; margin-bottom: 20px; }
.hero h1 { font-size: clamp(36px,5vw,56px); line-height: 1.1; font-weight: 800; letter-spacing: -.03em; margin-bottom: 22px; }
.hero h1 .accent { color: var(--color-brand); }
.hero p.lead { font-size: 18px; color: var(--color-text-muted); margin-bottom: 32px; max-width: 34em; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }

/* Hero 图（有图时隐藏占位文字）——用 :has() 兜底 */
.hero-figure { position: relative; border-radius: var(--radius-lg); overflow: hidden;
  aspect-ratio: 16/10; background: var(--color-surface);
  display: grid; place-items: center; }
.hero-figure .ph { padding: 20px; font-size: 13px; opacity: .7; line-height: 1.6; text-align: center; }
.hero-figure .ph strong { display: block; color: var(--color-brand); font-size: 15px; margin-bottom: 4px; }
.hero-figure img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: contain; background: #fff; }
/* 当 hero-figure 内存在 img 时，隐藏占位文字 */
.hero-figure:has(img) .ph { display: none !important; }
.hero-figure img ~ .ph { display: none; }

/* Hero 左上角 Logo 展示（放大，清晰轮廓） */
.hero-logo-left { position: absolute; top: 22px; left: 24px; z-index: 3;
  width: 168px; height: auto; background: #fff; border-radius: var(--radius);
  padding: 14px; box-shadow: 0 6px 22px rgba(0,0,0,.10); border: 1px solid var(--color-border); }
.hero-logo-left img { width: 100%; height: auto; object-fit: contain; }

/* ---------- 数据条（整宽居中，融入 Hero 区域） ---------- */
.stats { display: grid; grid-template-columns: repeat(4,1fr); gap: 16px; margin-top: 48px; }
.stat { background: #fff; border: 1px solid var(--color-border); border-radius: var(--radius); padding: 28px 16px; text-align: center; }
.stat .num { font-size: 32px; font-weight: 800; color: var(--color-brand); letter-spacing: -.02em; }
.stat .lbl { font-size: 13px; color: var(--color-text-muted); margin-top: 4px; }

/* ========== Section（垂直流式，每区独占整宽） ========== */
.section { padding: 72px 0; }
.section.alt { background: var(--color-surface); }
.section-head { max-width: 680px; margin-bottom: 44px; }
.section-head .eyebrow { margin-bottom: 14px; }
.section-head h2 { font-size: clamp(26px,3.2vw,38px); font-weight: 800; letter-spacing: -.02em; line-height: 1.15; }
.section-head p { color: var(--color-text-muted); margin-top: 12px; font-size: 17px; }

/* 垂直堆叠原语（替代 grid-2 并排滥用） */
.stack > * + * { margin-top: 32px; }
.stack-lg > * + * { margin-top: 48px; }

/* ---------- 业务卡片（4 列网格，仅用于小模块） ---------- */
.grid { display: grid; gap: 22px; }
.grid-2 { grid-template-columns: repeat(2,1fr); }
.grid-3 { grid-template-columns: repeat(3,1fr); }
.grid-4 { grid-template-columns: repeat(4,1fr); }
.grid-5 { grid-template-columns: repeat(5,1fr); }
.card { background: #fff; border: 1px solid var(--color-border); border-radius: var(--radius); padding: 28px;
  transition: border-color .15s, transform .15s, box-shadow .15s; }
.card:hover { border-color: var(--color-brand); transform: translateY(-3px); box-shadow: 0 8px 24px rgba(240,150,0,.10); }
.card .ico { width: 44px; height: 44px; border-radius: 10px; background: var(--color-brand-soft); color: var(--color-brand);
  display: grid; place-items: center; font-weight: 800; font-size: 18px; margin-bottom: 16px; }
.card h3 { font-size: 18px; font-weight: 700; margin-bottom: 8px; letter-spacing: -.01em; }
.card p { color: var(--color-text-muted); font-size: 14px; line-height: 1.6; }
.card .tag { display: inline-block; font-size: 12px; color: var(--color-brand); background: var(--brand-soft, var(--color-brand-soft)); padding: 3px 10px; border-radius: 999px; margin-top: 14px; font-weight: 600; }
a.card { display: block; }

/* ========== 案例图片优先卡片（参考海睿数科） ========== */
.case-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 24px; }
.case-card { background: #fff; border: 1px solid var(--color-border); border-radius: var(--radius-lg);
  overflow: hidden; transition: transform .2s, box-shadow .2s; }
.case-card:hover { transform: translateY(-4px); box-shadow: 0 12px 32px rgba(0,0,0,.10); }
.case-card .case-img { position: relative; aspect-ratio: 4/3; overflow: hidden; background: var(--color-surface); min-height: 180px; }
.case-card .case-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s; }
.case-card:hover .case-img img { transform: scale(1.04); }
.case-card .case-img .badge { position: absolute; bottom: 10px; left: 10px; z-index: 2;
  font-size: 11px; font-weight: 700; color: #fff; background: rgba(0,0,0,.55);
  backdrop-filter: blur(4px); padding: 4px 10px; border-radius: 999px; }
.case-card .case-body { padding: 18px 20px 20px; }
.case-card .case-body h3 { font-size: 17px; font-weight: 700; margin-bottom: 6px; letter-spacing: -.01em; }
.case-card .case-body p { font-size: 13px; color: var(--color-text-muted); line-height: 1.55; }
.case-card .case-body .meta-tag { display: inline-block; font-size: 11px; color: var(--color-brand);
  background: var(--color-brand-soft); padding: 2px 8px; border-radius: 999px; font-weight: 600; margin-top: 8px; }

/* ---------- <details> 可展开内容（R2） ---------- */
details.expand { border: 1px solid var(--color-border); border-radius: var(--radius); background: #fff; overflow: hidden; }
details.expand + details.expand { margin-top: 12px; }
details.expand > summary { list-style: none; cursor: pointer; padding: 18px 22px; font-weight: 700; font-size: 16px;
  display: flex; align-items: center; justify-content: space-between; gap: 12px; }
details.expand > summary::-webkit-details-marker { display: none; }
details.expand > summary .chev { transition: transform .2s; color: var(--color-brand); font-size: 16px; }
details.expand[open] > summary .chev { transform: rotate(90deg); }
details.expand .body { padding: 0 22px 22px; color: var(--color-text-muted); font-size: 15px; }
details.expand .body .meta { display: flex; gap: 10px; flex-wrap: wrap; margin: 8px 0 16px; }
details.expand .body .chip { font-size: 12px; color: var(--color-brand); background: var(--color-brand-soft); padding: 3px 10px; border-radius: 999px; font-weight: 600; }

/* ---------- 内容块（整宽信息卡片） ---------- */
.content-block { background: #fff; border: 1px solid var(--color-border); border-radius: var(--radius-lg); padding: 36px 40px; }
.content-block h3 { font-size: 22px; font-weight: 700; margin-bottom: 16px; }
.content-block p { color: var(--color-text-muted); font-size: 15px; line-height: 1.75; }

/* ---------- 列表/定义 ---------- */
.kv { width: 100%; border-collapse: collapse; }
.kv th, .kv td { text-align: left; padding: 14px 18px; border-bottom: 1px solid var(--color-border); font-size: 14px; }
.kv th { color: var(--color-text-muted); font-weight: 600; width: 150px; background: var(--color-surface); }
.kv tr:last-child th, .kv tr:last-child td { border-bottom: none; }
.feature-list { list-style: none; display: grid; gap: 14px; }
.feature-list li { display: flex; gap: 12px; align-items: flex-start; }
.feature-list .chk { flex: none; width: 22px; height: 22px; border-radius: 50%; background: var(--color-brand-soft); color: var(--color-brand);
  display: grid; place-items: center; font-size: 13px; font-weight: 800; margin-top: 2px; }

/* ---------- FAQ 紧凑卡片（支持双列） ---------- */
.faq-list { display: grid; gap: 10px; max-width: 720px; }
.faq-list.faq-2col { grid-template-columns: 1fr 1fr; max-width: none; }
.faq-card { background: #fff; border: 1px solid var(--color-border); border-radius: var(--radius); padding: 16px 22px; transition: border-color .15s; }
.faq-card:hover { border-color: var(--color-brand); }
.faq-q { font-weight: 700; font-size: 15px; color: var(--color-text); margin-bottom: 6px; }
.faq-a { color: var(--color-text-muted); font-size: 14px; line-height: 1.65; }

/* ---------- 合作客户 Logo 墙（Shopex 风格网格卡片） ---------- */
.logo-wall-section { background: var(--color-surface); }
.logo-wall-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 16px;
}
.logo-wall-item {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 20px 16px 16px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 100px;
  transition: all .3s cubic-bezier(.4,0,.2,1);
  cursor: default;
  position: relative;
}
.logo-wall-item:hover {
  border-color: var(--color-brand);
  transform: translateY(-4px);
  box-shadow: 0 12px 28px rgba(240,150,0,.12);
}
/* Logo图片 */
.logo-wall-item img {
  max-height: 40px;
  max-width: 100px;
  object-fit: contain;
  transition: all .3s ease;
}
.logo-wall-item:hover img {
  transform: scale(1.1);
}
/* Logo下方公司名称 */
.logo-company-name {
  display: block;
  font-size: 12px;
  font-weight: 600;
  color: var(--color-text-muted);
  text-align: center;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 100%;
  transition: all .3s ease;
}
.logo-wall-item:hover .logo-company-name {
  color: var(--color-brand);
}
/* 加载失败兜底文字 */
.logo-wall-fallback {
  display: none;
  font-size: 12px;
  font-weight: 700;
  color: var(--color-text-muted);
  white-space: nowrap;
  opacity: .5;
  transition: all .3s ease;
}
.logo-wall-item:hover .logo-wall-fallback {
  opacity: 1;
  color: var(--color-brand);
}
/* 响应式 */
@media (max-width: 900px) {
  .logo-wall-grid { grid-template-columns: repeat(4, 1fr); gap: 12px; }
  .logo-wall-item { padding: 18px 12px; min-height: 76px; }
  .logo-wall-item img { max-height: 36px; max-width: 90px; }
}
@media (max-width: 560px) {
  .logo-wall-grid { grid-template-columns: repeat(3, 1fr); gap: 10px; }
  .logo-wall-item { padding: 14px 8px; min-height: 64px; }
  .logo-wall-item img { max-height: 28px; max-width: 70px; }
  .logo-wall-fallback { font-size: 11px; }
}

/* ---------- CTA ---------- */
.cta-band { background: var(--color-brand); color: #fff; border-radius: var(--radius-lg); padding: 52px 40px; text-align: center; }
.cta-band h2 { font-size: 28px; font-weight: 800; letter-spacing: -.02em; }
.cta-band p { opacity: .92; margin: 12px 0 26px; font-size: 17px; }
.cta-band .btn-primary { background: #fff; color: var(--color-brand); }
.cta-band .btn-primary:hover { background: #eef2f8; }

/* ---------- 页脚（旧版，保留兼容） ---------- */
.footer { border-top: 1px solid var(--color-border); padding: 40px 0; color: var(--color-text-muted); font-size: 14px; }
.footer .container { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 16px; }

/* ========== 深色多列页脚导航（参考海睿数科） ========== */
:root {
  --footer-bg: #1A2233;
  --footer-surface: #232D42;
  --footer-text: #C8D0E0;
  --footer-muted: #7B8799;
  --footer-border: #2E3A50;
}
.site-footer { background: var(--footer-bg); color: var(--footer-text); padding-top: 56px; font-size: 14px; line-height: 1.7; }
.footer-cols { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1.2fr; gap: 40px; padding-bottom: 44px; }
.footer-col a { display: block; color: var(--footer-muted); font-size: 14px; transition: color .15s; margin-bottom: 10px; }
.footer-col a:hover { color: #fff; }

.footer-brand { display: flex; align-items: center; gap: 10px; margin-bottom: 16px; }
.footer-logo { height: 36px; width: auto; object-fit: contain; filter: brightness(0) invert(1); opacity: .9; }
.footer-brand-name { font-size: 18px; font-weight: 800; color: #fff; letter-spacing: -.02em; }
.footer-desc { color: var(--footer-muted); font-size: 13px; line-height: 1.75; margin-bottom: 20px; max-width: 320px; }

.footer-contact { display: flex; flex-direction: column; gap: 8px; }
.fc-item { display: flex; align-items: center; gap: 8px; color: var(--footer-muted); font-size: 13px; }
.fc-icon { font-size: 15px; width: 20px; text-align: center; flex-shrink: 0; }

.footer-col-title { color: #fff; font-size: 15px; font-weight: 700; margin-bottom: 18px; letter-spacing: -.01em; }
.footer-cta { display: inline-flex; padding: 10px 22px; font-size: 14px; margin-top: 4px; }

.footer-bottom { border-top: 1px solid var(--footer-border); padding: 18px 0 60px; font-size: 12px; color: var(--footer-muted); }
.footer-bottom .container { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.footer-sep { opacity: .4; }

/* ========== 联系表单（参考海睿数科） ========== */
.contact-form-wrap { max-width: 680px; margin: 0 auto; }
.contact-form { display: grid; gap: 20px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-group label { font-size: 14px; font-weight: 600; color: var(--color-text); }
.form-group input,
.form-group select,
.form-group textarea {
  padding: 12px 16px; border: 1px solid var(--color-border); border-radius: var(--radius);
  font-size: 15px; font-family: var(--font-sans); color: var(--color-text);
  background: #fff; transition: border-color .15s, box-shadow .15s;
  outline: none; }
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--color-brand); box-shadow: 0 0 0 3px rgba(240,150,0,.12); }
.form-group input::placeholder,
.form-group textarea::placeholder { color: #B0B8C8; }
.form-group textarea { min-height: 120px; resize: vertical; }
.form-group select { appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%235B6678' fill='none' stroke-width='1.5'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 14px center; padding-right: 36px; }
.btn-submit { width: 100%; padding: 15px 28px; border-radius: var(--radius);
  background: var(--color-brand); color: #fff; font-size: 16px; font-weight: 700;
  border: none; cursor: pointer; transition: background .15s, transform .1s;
  display: inline-flex; align-items: center; justify-content: center; gap: 8px; }
.btn-submit:hover { background: var(--color-brand-hover); transform: translateY(-1px); }
.btn-submit svg { width: 18px; height: 18px; }

@media (max-width: 560px) {
  .form-row { grid-template-columns: 1fr; }
}

/* ========== 案例详情页专用 ========== */
.case-detail-hero { padding: 48px 0 32px; background: linear-gradient(180deg, var(--color-surface) 0%, #fff 100%); }
.case-detail-hero h1 { font-size: clamp(28px,4vw,40px); font-weight: 800; }
.case-detail-hero .breadcrumb { margin-bottom: 20px; }
.case-gallery { display: grid; grid-template-columns: repeat(2,1fr); gap: 16px; margin-top: 32px; }
.case-gallery figure { border-radius: var(--radius); overflow: hidden; border: 1px solid var(--color-border); }
.case-gallery img { width: 100%; aspect-ratio: 16/10; object-fit: cover; transition: transform .3s; }
.case-gallery figure:hover img { transform: scale(1.03); }
.case-gallery figcaption { padding: 10px 14px; font-size: 13px; color: var(--color-text-muted); background: #fff; }

/* ---------- 响应式 ---------- */
@media (max-width: 900px) {
  .stats { grid-template-columns: repeat(2,1fr); }
  .case-grid { grid-template-columns: repeat(2,1fr); }
  .grid-3, .grid-4, .grid-5 { grid-template-columns: repeat(2,1fr); }
  .nav-links { display: none; }
  .case-gallery { grid-template-columns: 1fr; }
  .footer-cols { grid-template-columns: 1fr 1fr; gap: 32px; }
  .client-grid { grid-template-columns: repeat(4, 1fr); }
  .faq-2col { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  .hero { padding: 56px 0 40px; }
  .hero h1 { font-size: 32px; }
  .stats, .grid-3, .grid-4, .grid-5, .grid-2 { grid-template-columns: 1fr; }
  .case-grid { grid-template-columns: 1fr; }
  .content-block { padding: 24px 20px; }
  .section { padding: 52px 0; }
  .footer-cols { grid-template-columns: 1fr; gap: 28px; }
  .client-grid { grid-template-columns: repeat(3, 1fr); }
  .footer-bottom .container { flex-direction: column; gap: 6px; text-align: center; }
  .footer-sep { display: none; }
}

/* ========== 业务板块图片画廊 ========== */
.service-gallery {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 16px;
  margin-top: 24px;
  margin-bottom: 20px;
}
.service-gallery img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  border-radius: var(--radius);
  transition: transform .3s ease, box-shadow .3s ease;
  cursor: pointer;
}
.service-gallery img:hover {
  transform: scale(1.03);
  box-shadow: 0 8px 20px rgba(0,0,0,.12);
}
@media (max-width: 640px) {
  .service-gallery {
    grid-template-columns: 1fr;
    gap: 12px;
  }
  .service-gallery img {
    height: 200px;
  }
}

/* ========== 经营范围卡片网格（3列布局） ========== */
.scope-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 32px;
}
a.scope-card {
  display: block;
  text-decoration: none;
  color: inherit;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all .3s ease;
  cursor: pointer;
}
a.scope-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 32px rgba(240,150,0,.15);
  border-color: var(--color-brand);
}
.scope-card img {
  width: 100%;
  height: 180px;
  object-fit: cover;
  transition: transform .4s ease;
}
a.scope-card:hover img {
  transform: scale(1.05);
}
.scope-card h4 {
  font-size: 17px;
  font-weight: 700;
  color: var(--color-text);
  margin: 20px 20px 8px;
}
.scope-card p {
  font-size: 14px;
  color: var(--color-text-muted);
  line-height: 1.6;
  margin: 0 20px 12px;
}
.scope-link {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-brand);
  margin: 0 20px 20px;
  transition: gap .2s;
}
a.scope-card:hover .scope-link {
  text-decoration: underline;
}
@media (max-width: 640px) {
  .scope-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .scope-card img {
    height: 160px;
  }
}

/* ========== 新闻动态卡片 ========== */
.news-card {
  display: block;
  background: var(--color-bg);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(0,0,0,.06);
  transition: transform .3s ease, box-shadow .3s ease;
  text-decoration: none;
  color: inherit;
}
a.news-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 8px 24px rgba(0,0,0,.12);
}
.news-img {
  position: relative;
  overflow: hidden;
  height: 220px;
}
.news-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .4s ease;
}
a.news-card:hover .news-img img {
  transform: scale(1.05);
}
.news-badge {
  position: absolute;
  top: 12px;
  left: 12px;
  padding: 4px 12px;
  background: rgba(255,255,255,.95);
  border-radius: 4px;
  font-size: 12px;
  font-weight: 600;
  color: var(--color-text);
}
.news-body {
  padding: 20px 24px 24px;
}
.news-meta {
  display: flex;
  gap: 12px;
  margin-bottom: 10px;
  font-size: 13px;
}
.news-date {
  color: var(--color-text-muted);
}
.news-tag {
  color: var(--color-brand);
  font-weight: 600;
}
.news-body h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-text);
  margin: 0 0 10px;
  line-height: 1.4;
}
.news-body p {
  font-size: 14px;
  color: var(--color-text-muted);
  line-height: 1.6;
  margin: 0;
}


/* 面包屑导航 — 橙色按钮风格 */
nav.breadcrumb {
  display: inline-flex;
  align-items: center;
  gap: 0;
  background: #F09600;
  color: #fff;
  font-size: 13px;
  font-weight: 600;
  padding: 8px 20px;
  border-radius: 24px;
  margin-bottom: 20px;
  box-shadow: 0 2px 8px rgba(240,150,0,0.25);
}
nav.breadcrumb a {
  color: #fff;
  text-decoration: none;
  padding: 2px 6px;
  border-radius: 4px;
  transition: all .2s;
}
nav.breadcrumb a:hover {
  background: rgba(255,255,255,0.2);
  color: #fff;
}
nav.breadcrumb span {
  margin: 0 4px;
  color: rgba(255,255,255,0.7);
}
nav.breadcrumb span:last-child {
  color: #fff;
  font-weight: 700;
}