/* ============================================================
   楚盛膜结构 · 企业官网样式
   风格：简约大气 / 红色系为主 / 白色辅助
   ============================================================ */

:root {
  --red: #C8102E;
  --red-dark: #9C0D25;
  --red-deep: #7A0A1D;
  --red-soft: #FDECEE;
  --grad-main: linear-gradient(135deg, #D01432 0%, #A80E28 55%, #8A0B21 100%);
  --white: #FFFFFF;
  --gray-50: #F7F8FA;
  --gray-100: #EFF1F4;
  --gray-200: #E3E6EB;
  --text-main: #22262B;
  --text-sub: #5B6470;
  --text-light: #9AA1AB;
  --radius: 14px;
  --radius-sm: 8px;
  --shadow-sm: 0 2px 10px rgba(20, 12, 14, 0.06);
  --shadow-md: 0 10px 30px rgba(20, 12, 14, 0.10);
  --shadow-red: 0 12px 32px rgba(200, 16, 46, 0.28);
  --container: 1200px;
  --font: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, "Noto Sans SC", sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  color: var(--text-main);
  background: var(--white);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
ul, ol { list-style: none; }

.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }

/* ---------------- 顶部导航 ---------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 999;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--gray-100);
  box-shadow: 0 1px 6px rgba(20, 12, 14, 0.04);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}
.brand { display: flex; align-items: center; gap: 12px; }
.brand-logo {
  width: 46px; height: 46px;
  border-radius: 10px;
  background: var(--grad-main);
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-size: 22px; font-weight: 800;
  letter-spacing: -1px;
  box-shadow: var(--shadow-red);
}
.brand-logo-img {
  display: block;
  height: 48px;
  width: auto;
  border-radius: 8px;
  object-fit: cover;
  box-shadow: var(--shadow-red);
}
.brand-text { line-height: 1.2; }
.brand-name {
  font-size: 22px; font-weight: 800; color: var(--red-dark);
  letter-spacing: 1px;
}
.brand-sub { font-size: 11px; color: var(--text-light); letter-spacing: 2px; }

.nav-menu { display: flex; align-items: center; gap: 6px; }
.nav-menu a {
  display: block;
  padding: 10px 16px;
  font-size: 15px;
  color: var(--text-main);
  border-radius: var(--radius-sm);
  transition: all .25s;
  position: relative;
}
.nav-menu a:hover { color: var(--red); background: var(--red-soft); }
.nav-menu a.active { color: var(--red); font-weight: 600; }
.nav-menu a.active::after {
  content: "";
  position: absolute;
  left: 16px; right: 16px; bottom: 4px;
  height: 3px; border-radius: 2px;
  background: var(--grad-main);
}
.nav-cta {
  margin-left: 10px;
  padding: 10px 20px !important;
  background: var(--grad-main) !important;
  color: #fff !important;
  border-radius: 999px !important;
  font-weight: 600;
  box-shadow: var(--shadow-red);
}
.nav-cta:hover { transform: translateY(-1px); filter: brightness(1.06); }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none; border: none; cursor: pointer;
  padding: 8px;
}
.nav-toggle span {
  width: 24px; height: 2px;
  background: var(--red-dark);
  border-radius: 2px;
  transition: all .3s;
}

/* ---------------- Hero ---------------- */
.hero {
  position: relative;
  background: var(--grad-main);
  color: #fff;
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute; inset: 0;
  background:
    radial-gradient(900px 420px at 85% -10%, rgba(255, 255, 255, 0.16), transparent 60%),
    radial-gradient(700px 380px at -10% 110%, rgba(0, 0, 0, 0.22), transparent 60%);
  pointer-events: none;
}
.hero-inner {
  position: relative;
  padding: 96px 0 108px;
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: 56px;
  align-items: center;
}
.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  border: 1px solid rgba(255, 255, 255, 0.45);
  border-radius: 999px;
  font-size: 13px;
  letter-spacing: 1px;
  background: rgba(255, 255, 255, 0.10);
  margin-bottom: 22px;
}
.hero h1 {
  font-size: 46px;
  line-height: 1.25;
  font-weight: 800;
  letter-spacing: 1px;
  margin-bottom: 20px;
}
.hero h1 em {
  font-style: normal;
  background: linear-gradient(90deg, #FFD9A0, #FFE9C7);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero-desc {
  font-size: 16px;
  color: rgba(255, 255, 255, 0.88);
  max-width: 560px;
  margin-bottom: 34px;
}
.hero-btns { display: flex; gap: 14px; flex-wrap: wrap; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 30px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 600;
  transition: all .28s;
  border: none;
  cursor: pointer;
  font-family: var(--font);
}
.btn-white { background: #fff; color: var(--red-dark); box-shadow: 0 8px 24px rgba(0,0,0,.18); }
.btn-white:hover { transform: translateY(-2px); box-shadow: 0 12px 30px rgba(0,0,0,.24); }
.btn-ghost { background: transparent; color: #fff; border: 1.5px solid rgba(255,255,255,.7); }
.btn-ghost:hover { background: rgba(255,255,255,.12); transform: translateY(-2px); }
.btn-red { background: var(--grad-main); color: #fff; box-shadow: var(--shadow-red); }
.btn-red:hover { transform: translateY(-2px); filter: brightness(1.05); }

.hero-card {
  position: relative;
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.30);
  border: 1px solid rgba(255, 255, 255, 0.22);
}
.hero-card .ph {
  height: 320px;
}
.hero-card-label {
  position: absolute;
  left: 16px; bottom: 16px;
  background: rgba(0, 0, 0, 0.55);
  backdrop-filter: blur(6px);
  color: #fff;
  padding: 8px 14px;
  border-radius: 999px;
  font-size: 13px;
}

/* 滚动提示条 */
.hero-strip {
  position: relative;
  background: rgba(0, 0, 0, 0.16);
  padding: 14px 0;
  border-top: 1px solid rgba(255,255,255,.14);
}
.hero-strip .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}
.hero-strip-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.92);
}
.hero-strip-item b { font-size: 20px; font-weight: 800; }

/* ---------------- 通用区块 ---------------- */
.section { padding: 88px 0; }
.section-gray { background: var(--gray-50); }
.section-red { background: var(--grad-main); color: #fff; }

.sec-head { text-align: center; max-width: 720px; margin: 0 auto 56px; }
.sec-eyebrow {
  display: inline-block;
  font-size: 13px;
  letter-spacing: 3px;
  color: var(--red);
  font-weight: 600;
  margin-bottom: 12px;
  padding: 5px 14px;
  border-radius: 999px;
  background: var(--red-soft);
}
.section-red .sec-eyebrow { background: rgba(255,255,255,.16); color: #FFE1E6; }
.sec-title { font-size: 34px; font-weight: 800; line-height: 1.3; letter-spacing: .5px; }
.sec-sub { margin-top: 14px; color: var(--text-sub); font-size: 15px; }
.section-red .sec-sub { color: rgba(255,255,255,.85); }

/* ---------------- 图片占位（空白图片） ---------------- */
.ph {
  background:
    repeating-linear-gradient(45deg, #F1F3F6 0 14px, #EAEDF1 14px 28px);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 8px;
  color: #9AA3AE;
  font-size: 13px;
  letter-spacing: 1px;
  border: 1px dashed #D5DAE0;
  min-height: 120px;
  user-select: none;
}
.ph svg { width: 34px; height: 34px; opacity: .55; }
.ph b { font-weight: 600; font-size: 15px; color: #B0B8C2; }
.ph small { font-size: 11px; }

/* ---------------- 优势卡片 ---------------- */
.feat-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.feat-card {
  background: #fff;
  border: 1px solid var(--gray-100);
  border-radius: var(--radius);
  padding: 30px 24px;
  transition: all .3s;
  position: relative;
  overflow: hidden;
}
.feat-card::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--grad-main);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .35s;
}
.feat-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); border-color: transparent; }
.feat-card:hover::before { transform: scaleX(1); }
.feat-icon {
  width: 56px; height: 56px;
  border-radius: 14px;
  background: var(--red-soft);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 18px;
}
.feat-icon svg { width: 28px; height: 28px; stroke: var(--red); }
.feat-card h3 { font-size: 18px; font-weight: 700; margin-bottom: 8px; }
.feat-card p { font-size: 14px; color: var(--text-sub); }

/* ---------------- 产品卡片 ---------------- */
.prod-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.prod-card {
  background: #fff;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--gray-100);
  transition: all .3s;
  display: flex;
  flex-direction: column;
}
.prod-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); }
.prod-card .ph { height: 200px; border: none; border-bottom: 1px dashed #D5DAE0; }
.prod-body { padding: 20px 22px 24px; flex: 1; display: flex; flex-direction: column; }
.prod-body h3 { font-size: 18px; font-weight: 700; margin-bottom: 8px; display: flex; align-items: center; gap: 8px; }
.prod-body h3 .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--grad-main); flex: none; }
.prod-body p { font-size: 13.5px; color: var(--text-sub); flex: 1; }
.prod-more {
  margin-top: 16px;
  font-size: 13.5px;
  color: var(--red);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.prod-more svg { width: 15px; height: 15px; transition: transform .25s; }
.prod-card:hover .prod-more svg { transform: translateX(4px); }

/* ---------------- 数据统计 ---------------- */
.stat-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.stat-item { text-align: center; padding: 20px 10px; }
.stat-item .num {
  font-size: 44px;
  font-weight: 800;
  color: #fff;
  line-height: 1.2;
}
.stat-item .num small { font-size: 20px; font-weight: 600; margin-left: 2px; }
.stat-item .label { color: rgba(255, 255, 255, 0.8); font-size: 14px; margin-top: 6px; letter-spacing: 1px; }
.stat-divider { width: 1px; background: rgba(255,255,255,.22); }

/* ---------------- 双栏内容 ---------------- */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }
.split .ph { height: 380px; border-radius: var(--radius); border: none; }
.split-title { font-size: 30px; font-weight: 800; line-height: 1.35; margin-bottom: 18px; }
.split-title em { font-style: normal; color: var(--red); }
.split p { color: var(--text-sub); font-size: 15px; margin-bottom: 14px; }
.check-list { margin-top: 8px; }
.check-list li {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 9px 0;
  font-size: 15px;
  color: var(--text-main);
}
.check-list li svg { width: 20px; height: 20px; flex: none; margin-top: 3px; }

/* ---------------- 案例卡片 ---------------- */
.case-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.case-card {
  background: #fff;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--gray-100);
  transition: all .3s;
}
.case-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); }
.case-card .ph { height: 230px; border: none; border-bottom: 1px dashed #D5DAE0; }
.case-info { padding: 20px 22px; }
.case-info h3 { font-size: 17px; font-weight: 700; margin-bottom: 10px; }
.case-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.case-tags span {
  font-size: 12px;
  padding: 4px 12px;
  border-radius: 999px;
  background: var(--red-soft);
  color: var(--red-dark);
  font-weight: 600;
}
.case-meta { display: flex; justify-content: space-between; margin-top: 14px; font-size: 13px; color: var(--text-light); }

/* ---------------- CTA 横幅 ---------------- */
.cta-banner {
  background:
    radial-gradient(800px 320px at 90% -20%, rgba(255,255,255,.14), transparent 60%),
    var(--grad-main);
  border-radius: 22px;
  padding: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
  flex-wrap: wrap;
  color: #fff;
  box-shadow: var(--shadow-red);
}
.cta-banner h3 { font-size: 28px; font-weight: 800; margin-bottom: 10px; }
.cta-banner p { color: rgba(255,255,255,.86); max-width: 620px; }

/* ---------------- 页脚 ---------------- */
.site-footer { background: #191416; color: #B9B3B6; }
.footer-top { padding: 60px 0 40px; display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.3fr; gap: 40px; }
.footer-brand .brand-name { color: #fff; }
.footer-brand p { font-size: 13.5px; margin-top: 14px; color: #A39DA0; max-width: 300px; }
.footer-col h4 { color: #fff; font-size: 16px; font-weight: 700; margin-bottom: 18px; position: relative; padding-bottom: 10px; }
.footer-col h4::after { content: ""; position: absolute; left: 0; bottom: 0; width: 26px; height: 3px; border-radius: 2px; background: var(--red); }
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul a { font-size: 14px; color: #A39DA0; transition: all .25s; }
.footer-col ul a:hover { color: #fff; padding-left: 4px; }
.footer-contact li { display: flex; gap: 10px; align-items: flex-start; font-size: 14px; margin-bottom: 14px; color: #A39DA0; }
.footer-contact li svg { width: 18px; height: 18px; flex: none; margin-top: 3px; }
.footer-contact a { color: #fff; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.10);
  padding: 18px 0;
  font-size: 13px;
  text-align: center;
  color: #8A8487;
}

/* ---------------- 内页 Hero ---------------- */
.page-hero {
  background: var(--grad-main);
  color: #fff;
  padding: 64px 0 58px;
  position: relative;
  overflow: hidden;
}
.page-hero::before {
  content: "";
  position: absolute; inset: 0;
  background: radial-gradient(760px 300px at 90% -30%, rgba(255,255,255,.15), transparent 60%);
}
.page-hero .container { position: relative; }
.page-hero h1 { font-size: 38px; font-weight: 800; letter-spacing: 1px; }
.page-hero .crumb { margin-top: 14px; font-size: 14px; color: rgba(255,255,255,.8); display: flex; align-items: center; gap: 8px; }
.page-hero .crumb a:hover { text-decoration: underline; }
.page-hero .crumb svg { width: 14px; height: 14px; }

/* ---------------- 面包屑分隔 ---------------- */
.crumb svg { display: inline-block; }

/* ---------------- 公司简介 ---------------- */
.about-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.about-card {
  background: #fff;
  border-radius: var(--radius);
  padding: 30px;
  border: 1px solid var(--gray-100);
  transition: all .3s;
}
.about-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); }
.about-card .num-tag {
  font-size: 13px;
  font-weight: 700;
  color: var(--red);
  background: var(--red-soft);
  display: inline-block;
  padding: 4px 12px;
  border-radius: 999px;
  margin-bottom: 14px;
  letter-spacing: 1px;
}
.about-card h3 { font-size: 18px; font-weight: 700; margin-bottom: 10px; }
.about-card p { font-size: 14px; color: var(--text-sub); }

.flow { display: grid; grid-template-columns: repeat(5, 1fr); gap: 14px; counter-reset: flow; }
.flow-step {
  position: relative;
  background: #fff;
  border-radius: var(--radius);
  border: 1px solid var(--gray-100);
  padding: 26px 18px 22px;
  text-align: center;
  transition: all .3s;
}
.flow-step:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); border-color: transparent; }
.flow-step .step-icon {
  width: 54px; height: 54px;
  margin: 0 auto 14px;
  border-radius: 50%;
  background: var(--grad-main);
  color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-size: 20px;
  font-weight: 800;
  box-shadow: var(--shadow-red);
}
.flow-step h4 { font-size: 15.5px; font-weight: 700; margin-bottom: 6px; }
.flow-step p { font-size: 12.5px; color: var(--text-sub); }
.flow-arrow {
  position: absolute;
  top: 50%;
  right: -10px;
  transform: translateY(-50%);
  color: var(--red);
  z-index: 2;
}
.flow-arrow svg { width: 20px; height: 20px; }

/* ---------------- 材料参数表 ---------------- */
.param-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.param-item {
  background: #fff;
  border: 1px solid var(--gray-100);
  border-radius: var(--radius);
  padding: 22px 24px;
  display: flex;
  gap: 16px;
  align-items: flex-start;
  transition: all .3s;
}
.param-item:hover { box-shadow: var(--shadow-sm); border-color: var(--gray-200); }
.param-item .pi-icon {
  width: 44px; height: 44px;
  flex: none;
  border-radius: 12px;
  background: var(--red-soft);
  display: flex; align-items: center; justify-content: center;
}
.param-item .pi-icon svg { width: 22px; height: 22px; stroke: var(--red); }
.param-item h4 { font-size: 16px; font-weight: 700; margin-bottom: 4px; }
.param-item p { font-size: 13.5px; color: var(--text-sub); }

/* ---------------- 产品详情 ---------------- */
.prod-detail {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  background: #fff;
  border: 1px solid var(--gray-100);
  border-radius: var(--radius);
  padding: 34px;
  margin-bottom: 34px;
  transition: box-shadow .3s;
}
.prod-detail:hover { box-shadow: var(--shadow-md); }
.prod-detail .ph { height: 300px; border: none; border-radius: var(--radius-sm); }
.pd-body h3 { font-size: 24px; font-weight: 800; margin-bottom: 6px; }
.pd-body .pd-en { font-size: 12px; letter-spacing: 2px; color: var(--text-light); margin-bottom: 14px; }
.pd-body p { font-size: 14.5px; color: var(--text-sub); margin-bottom: 14px; }
.pd-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 18px; }
.pd-tags span {
  font-size: 12.5px;
  padding: 5px 14px;
  border-radius: 999px;
  background: var(--red-soft);
  color: var(--red-dark);
  font-weight: 600;
}
.pd-links { display: flex; gap: 12px; flex-wrap: wrap; }

/* ---------------- 城市分布 ---------------- */
.city-overview {
  background: var(--grad-main);
  border-radius: 22px;
  color: #fff;
  padding: 40px 44px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  box-shadow: var(--shadow-red);
  margin-bottom: 56px;
}
.city-overview .co-item { text-align: center; }
.city-overview .co-item b { font-size: 40px; font-weight: 800; display: block; line-height: 1.2; }
.city-overview .co-item span { font-size: 14px; color: rgba(255,255,255,.82); letter-spacing: 1px; }
.city-overview .co-div { width: 1px; background: rgba(255,255,255,.25); }

.city-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
  margin-bottom: 48px;
}
.city-nav a {
  padding: 9px 18px;
  border-radius: 999px;
  border: 1px solid var(--gray-200);
  font-size: 14px;
  color: var(--text-sub);
  transition: all .25s;
  background: #fff;
}
.city-nav a:hover, .city-nav a.active { background: var(--red); color: #fff; border-color: var(--red); }

.city-card {
  background: #fff;
  border: 1px solid var(--gray-100);
  border-radius: var(--radius);
  overflow: hidden;
  transition: all .3s;
  display: flex;
  flex-direction: column;
}
.city-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); }
.city-card .ph { height: 150px; border: none; border-bottom: 1px dashed #D5DAE0; }
.city-card-body { padding: 20px 22px; flex: 1; display: flex; flex-direction: column; }
.city-name { display: flex; align-items: center; justify-content: space-between; margin-bottom: 8px; }
.city-name h3 { font-size: 18px; font-weight: 800; }
.city-name .city-flag {
  font-size: 11px;
  padding: 3px 10px;
  border-radius: 999px;
  background: var(--red-soft);
  color: var(--red-dark);
  font-weight: 600;
}
.city-card-body p { font-size: 13px; color: var(--text-sub); flex: 1; }
.city-counties { margin-top: 12px; font-size: 12.5px; color: var(--text-light); line-height: 1.8; }
.city-counties b { color: var(--text-sub); font-weight: 600; }

/* 州市详情区块 */
.city-block {
  background: #fff;
  border: 1px solid var(--gray-100);
  border-radius: 18px;
  padding: 40px;
  margin-bottom: 30px;
  scroll-margin-top: 100px;
  transition: box-shadow .3s;
}
.city-block:hover { box-shadow: var(--shadow-sm); }
.city-block-head {
  display: flex;
  align-items: center;
  gap: 18px;
  margin-bottom: 22px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--gray-100);
}
.cb-badge {
  width: 56px; height: 56px;
  flex: none;
  border-radius: 16px;
  background: var(--grad-main);
  color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-size: 20px;
  font-weight: 800;
  box-shadow: var(--shadow-red);
}
.cb-title h3 { font-size: 24px; font-weight: 800; }
.cb-title p { font-size: 13px; color: var(--text-light); letter-spacing: 1px; }
.cb-head-tag { margin-left: auto; font-size: 12.5px; color: var(--red-dark); background: var(--red-soft); padding: 6px 14px; border-radius: 999px; font-weight: 600; }
.city-block-body { display: grid; grid-template-columns: 1.2fr 1fr; gap: 32px; }
.cb-county h4, .cb-serve h4 {
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--red-dark);
}
.cb-county h4 svg, .cb-serve h4 svg { width: 18px; height: 18px; }
.county-chips { display: flex; flex-wrap: wrap; gap: 8px; }
.county-chips span {
  font-size: 13px;
  padding: 5px 13px;
  border-radius: 999px;
  background: var(--gray-50);
  border: 1px solid var(--gray-200);
  color: var(--text-sub);
}
.cb-serve ul li {
  display: flex; gap: 10px;
  font-size: 14px;
  color: var(--text-sub);
  padding: 6px 0;
  align-items: flex-start;
}
.cb-serve ul li svg { width: 17px; height: 17px; flex: none; margin-top: 4px; }

/* ---------------- 城市速览卡片网格 ---------------- */
.city-card-grid { grid-template-columns: repeat(4, 1fr); }

/* ---------------- 联系我们 ---------------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1.1fr; gap: 40px; align-items: start; }
.contact-cards { display: grid; gap: 16px; }
.contact-card {
  display: flex;
  gap: 18px;
  align-items: flex-start;
  background: #fff;
  border: 1px solid var(--gray-100);
  border-radius: var(--radius);
  padding: 24px;
  transition: all .3s;
}
.contact-card:hover { box-shadow: var(--shadow-md); transform: translateY(-3px); }
.contact-card .cc-icon {
  width: 50px; height: 50px;
  flex: none;
  border-radius: 14px;
  background: var(--grad-main);
  color: #fff;
  display: flex; align-items: center; justify-content: center;
  box-shadow: var(--shadow-red);
}
.contact-card .cc-icon svg { width: 24px; height: 24px; }
.contact-card h4 { font-size: 14px; color: var(--text-light); font-weight: 500; margin-bottom: 4px; }
.contact-card .cc-val { font-size: 18px; font-weight: 700; color: var(--text-main); word-break: break-all; }
.contact-card .cc-val a:hover { color: var(--red); }

.contact-form {
  background: #fff;
  border: 1px solid var(--gray-100);
  border-radius: var(--radius);
  padding: 34px;
  box-shadow: var(--shadow-sm);
}
.contact-form h3 { font-size: 22px; font-weight: 800; margin-bottom: 6px; }
.contact-form > p { font-size: 13.5px; color: var(--text-sub); margin-bottom: 24px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-size: 13.5px; font-weight: 600; margin-bottom: 6px; }
.form-group label i { color: var(--red); font-style: normal; }
.form-group input, .form-group select, .form-group textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1.5px solid var(--gray-200);
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-family: var(--font);
  color: var(--text-main);
  background: #fff;
  transition: all .25s;
  outline: none;
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
  border-color: var(--red);
  box-shadow: 0 0 0 3px rgba(200, 16, 46, 0.12);
}
.form-group textarea { resize: vertical; min-height: 110px; }
.form-tip { font-size: 12px; color: var(--text-light); margin-top: 10px; }

/* ---------------- 微信二维码 ---------------- */
.wechat-row { display: flex; gap: 22px; align-items: center; flex-wrap: wrap; }
.wechat-row .ph { width: 150px; height: 150px; border-radius: 12px; flex: none; }
.wechat-info { flex: 1; min-width: 200px; }
.wechat-info h4 { font-size: 16px; font-weight: 700; margin-bottom: 6px; }
.wechat-info p { font-size: 14px; color: var(--text-sub); }
.wechat-info .wx-id {
  display: inline-block;
  margin-top: 10px;
  padding: 8px 16px;
  background: var(--red-soft);
  color: var(--red-dark);
  border-radius: 8px;
  font-weight: 700;
  font-size: 14px;
  word-break: break-all;
}

/* ---------------- 响应式 ---------------- */
@media (max-width: 1024px) {
  .feat-grid { grid-template-columns: repeat(2, 1fr); }
  .prod-grid { grid-template-columns: repeat(2, 1fr); }
  .case-grid { grid-template-columns: repeat(2, 1fr); }
  .city-card-grid { grid-template-columns: repeat(2, 1fr); }
  .flow { grid-template-columns: repeat(3, 1fr); }
  .flow-step:nth-child(n+4) { margin-top: 14px; }
  .footer-top { grid-template-columns: 1fr 1fr; }
  .hero h1 { font-size: 38px; }
  .city-block-body { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .param-list { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .nav-toggle { display: flex; }
  .nav-menu {
    display: none;
    position: absolute;
    top: 76px; left: 0; right: 0;
    background: #fff;
    flex-direction: column;
    align-items: stretch;
    padding: 14px 20px 20px;
    border-bottom: 1px solid var(--gray-100);
    box-shadow: var(--shadow-md);
    gap: 4px;
  }
  .nav-menu.open { display: flex; }
  .nav-menu a { padding: 12px 14px; border-radius: var(--radius-sm); }
  .nav-menu a.active::after { display: none; }
  .nav-menu a.active { background: var(--red-soft); }
  .nav-cta { margin-left: 0; text-align: center; }

  .hero-inner { grid-template-columns: 1fr; padding: 56px 0 64px; gap: 32px; }
  .hero h1 { font-size: 30px; }
  .hero-card .ph { height: 220px; }

  .section { padding: 60px 0; }
  .sec-title { font-size: 26px; }
  .split { grid-template-columns: 1fr; gap: 30px; }
  .split .ph { height: 240px; }

  .feat-grid, .prod-grid, .case-grid { grid-template-columns: 1fr; }
  .city-card-grid { grid-template-columns: 1fr; }
  .stat-row { grid-template-columns: repeat(2, 1fr); }
  .stat-divider { display: none; }
  .stat-item .num { font-size: 34px; }

  .flow { grid-template-columns: 1fr; }
  .flow-step { text-align: left; display: flex; gap: 16px; align-items: center; padding: 16px 18px; }
  .flow-step .step-icon { margin: 0; flex: none; }
  .flow-arrow { display: none; }

  .footer-top { grid-template-columns: 1fr; gap: 30px; }
  .cta-banner { padding: 36px 26px; }
  .cta-banner h3 { font-size: 22px; }

  .page-hero h1 { font-size: 28px; }
  .prod-detail { grid-template-columns: 1fr; padding: 22px; }
  .prod-detail .ph { height: 220px; }

  .city-overview { grid-template-columns: repeat(2, 1fr); padding: 28px 20px; }
  .city-overview .co-div { display: none; }
  .city-block { padding: 24px; }
  .city-block-head { flex-wrap: wrap; }
  .cb-head-tag { margin-left: 0; }
  .city-nav a { padding: 8px 14px; font-size: 13px; }

  .form-row { grid-template-columns: 1fr; }
  .contact-form { padding: 24px; }
  .hero-strip-item b { font-size: 16px; }
}

@media (max-width: 480px) {
  .brand-sub { display: none; }
  .hero-btns .btn { width: 100%; }
}

/* ---------------- 真实图片（替换占位块） ---------------- */
.site-img { display: block; width: 100%; object-fit: cover; }
.prod-card .site-img { height: 200px; border-bottom: 1px dashed #D5DAE0; }
.case-card .site-img { height: 230px; border-bottom: 1px dashed #D5DAE0; }
.prod-detail .site-img { height: 300px; border-radius: var(--radius-sm); }
.city-card .site-img { height: 150px; border-bottom: 1px dashed #D5DAE0; }

/* 城市卡片整体可点击 */
a.city-card { text-decoration: none; color: inherit; display: flex; flex-direction: column; }
a.city-card:hover { text-decoration: none; }
a.city-card .city-name h3 { transition: color .2s; }
a.city-card:hover .city-name h3 { color: var(--red); }

/* 地州独立页：区县区块 */
.county-panel {
  background: #fff;
  border: 1px solid var(--gray-100);
  border-radius: var(--radius);
  padding: 34px 38px;
}
.county-panel h3 { font-size: 22px; font-weight: 800; display: flex; align-items: center; gap: 12px; }
.county-panel h3 .pin {
  width: 42px; height: 42px; border-radius: 12px; background: var(--red-soft);
  color: var(--red-dark); display: inline-flex; align-items: center; justify-content: center;
}
.county-panel p.tagline { margin: 10px 0 20px; color: var(--text-sub); font-size: 14px; }
.county-panel .county-chips span {
  background: var(--gray-50, #F7F8FA); border: 1px solid var(--gray-100);
}
/* 州市区块 → 独立页面入口 */
.cb-enter { margin-top: 4px; }
.cb-enter a {
  color: var(--red); font-weight: 600; text-decoration: none;
  display: inline-flex; align-items: center; gap: 6px; font-size: 14px;
}
.cb-enter a:hover { text-decoration: underline; }
.cb-enter svg { width: 15px; height: 15px; }