/* ============================================
   智创云企 - 官方网站样式
   设计风格：传统企业 · 简洁 · 专业
   ============================================ */

/* ===== 设计变量 ===== */
:root {
  --primary: #1e88e5;
  --primary-dark: #1565c0;
  --primary-light: #42a5f5;
  --secondary: #2e8b57;

  --bg-white: #FFFFFF;
  --bg-light: #f3f8ff;
  --bg-gray: #f5f5f5;
  --bg-blue-tint: #eef4fa;

  --text-dark: #222;
  --text-body: #333;
  --text-medium: #555;
  --text-light: #888;

  --shadow-xs: 0 1px 3px rgba(30, 136, 229, 0.05);
  --shadow-sm: 0 2px 10px rgba(30, 136, 229, 0.08);
  --shadow-md: 0 6px 22px rgba(30, 136, 229, 0.10);
  --shadow-lg: 0 10px 32px rgba(30, 136, 229, 0.12);

  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;

  --transition: all 0.25s ease;
  --transition-slow: all 0.4s ease;

  --nav-h: 80px;
  --container: 1200px;
}

/* ===== 重置 ===== */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: "Microsoft YaHei", "微软雅黑", "PingFang SC", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text-body);
  background: var(--bg-white);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
a { text-decoration: none; color: inherit; }
ul, ol { list-style: none; }
img { max-width: 100%; display: block; }
button { border: none; background: none; cursor: pointer; font-family: inherit; }
svg { display: block; }

/* ===== 通用 ===== */
.container { max-width: var(--container); margin: 0 auto; padding: 0 20px; }
.section { padding: 60px 0; position: relative; }
.section-alt { background: var(--bg-light); }
.hide-mobile { display: inline; }

/* ===== 按钮 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 24px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 600;
  transition: var(--transition);
  cursor: pointer;
  white-space: nowrap;
}
.btn-primary {
  background: var(--primary);
  color: #fff;
}
.btn-primary:hover {
  background: var(--primary-dark);
}
.btn-ghost {
  background: transparent;
  color: var(--primary);
  border: 1px solid var(--primary);
}
.btn-ghost:hover {
  background: var(--primary);
  color: #fff;
}
.btn-lg { padding: 12px 32px; font-size: 15px; }

/* ===== 产品详情页 · 醒目的"联系我们"按钮 ===== */
.contact-us-hero-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 22px;
  font-size: 15px;
  font-weight: 700;
  color: #fff;
  border-radius: 999px;
  background: linear-gradient(135deg, #ff7a59 0%, #ff3d3d 100%);
  box-shadow: 0 10px 24px rgba(255, 77, 79, 0.32), 0 0 0 1px rgba(255,255,255,0.35) inset;
  text-decoration: none;
  transition: transform .25s ease, box-shadow .25s ease, filter .25s ease;
  position: relative;
  overflow: hidden;
}
.contact-us-hero-btn::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, transparent 20%, rgba(255,255,255,.45) 50%, transparent 80%);
  transform: translateX(-120%);
  transition: transform .9s ease;
}
.contact-us-hero-btn:hover {
  transform: translateY(-2px);
  filter: brightness(1.05);
  box-shadow: 0 16px 32px rgba(255, 77, 79, 0.42), 0 0 0 1px rgba(255,255,255,0.45) inset;
  color: #fff;
}
.contact-us-hero-btn:hover::after { transform: translateX(120%); }
.contact-us-hero-btn:active { transform: translateY(0); }
@media (max-width: 520px) {
  .contact-us-hero-btn { width: 100%; justify-content: center; padding: 12px 16px; }
}

/* ===== 导航栏 ===== */
.navbar {
  position: static;
  height: var(--nav-h);
  background: #fff;
  border-bottom: 1px solid #e0e0e0;
  z-index: 1000;
}
.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
}
.logo-icon { flex-shrink: 0; }
.logo-text {
  display: flex;
  flex-direction: column;
  font-size: 20px;
  font-weight: 700;
  color: var(--text-dark);
  line-height: 1.2;
}
.logo-text small {
  font-size: 10px;
  font-weight: 500;
  color: var(--text-light);
  letter-spacing: 2px;
  margin-top: 1px;
}

/* 导航菜单 */
.nav-menu {
  display: flex;
  align-items: center;
  gap: 0;
}
.nav-item {
  position: relative;
}
.nav-link {
  padding: 10px 18px;
  font-size: 16px;
  font-weight: 500;
  color: var(--text-medium);
  transition: var(--transition);
  display: block;
}
.nav-link:hover, .nav-link.active {
  color: var(--primary);
}
.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 2px;
  background: var(--primary);
  transition: var(--transition);
  transform: translateX(-50%);
}
.nav-link:hover::after, .nav-link.active::after {
  width: 60%;
}
/* 下拉菜单 */
.nav-dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 200px;
  background: #fff;
  border: 1px solid #e0e0e0;
  box-shadow: var(--shadow-sm);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: var(--transition);
  z-index: 100;
}
.nav-item:hover .nav-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.nav-dropdown a {
  display: block;
  padding: 10px 18px;
  font-size: 15px;
  color: var(--text-medium);
  border-bottom: 1px solid #f0f0f0;
  transition: var(--transition);
}
.nav-dropdown a:last-child { border-bottom: none; }
.nav-dropdown a:hover {
  color: var(--primary);
  background: var(--bg-blue-tint);
  padding-left: 24px;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
}
.nav-toggle span {
  width: 24px;
  height: 2px;
  background: var(--text-dark);
  border-radius: 2px;
  transition: var(--transition);
}
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ===== Banner 轮播 ===== */
.banner-slider {
  position: relative;
  width: 100%;
  height: 400px;
  overflow: hidden;
  background: var(--bg-blue-tint);
}
.banner-slides {
  display: flex;
  width: 100%;
  height: 100%;
  transition: transform 0.6s ease;
}
.banner-slide {
  min-width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}
.banner-slide-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
}
.banner-slide-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 30, 60, 0.35);
}
.banner-slide-content {
  position: relative;
  z-index: 2;
  text-align: center;
  color: #fff;
  max-width: min(800px, 50vw);
  padding: 0 20px;
  transform: translateX(-45%);
}
.banner-slide-content h1,
.banner-slide-content h2 {
  font-size: 2.2rem;
  font-weight: 700;
  margin-bottom: 16px;
  line-height: 1.3;
}
.banner-slide-content p {
  font-size: 1.1rem;
  line-height: 1.8;
  margin-bottom: 24px;
  opacity: 0.9;
}
.banner-slide-content .btn {
  background: var(--primary);
  color: #fff;
}
.banner-slide-content .btn:hover {
  background: var(--primary-dark);
}
.banner-dots {
  position: absolute;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 8px;
  z-index: 3;
}
.banner-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.5);
  cursor: pointer;
  transition: var(--transition);
}
.banner-dot.active {
  background: #fff;
  width: 30px;
  border-radius: 5px;
}

/* ===== 页面横幅 ===== */
.page-banner {
  height: 280px;
  background-color: var(--primary);
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  text-align: left;
  color: #fff;
  position: relative;
  overflow: hidden;
}
.page-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(15, 50, 90, 0.55) 0%, rgba(15, 50, 90, 0.35) 60%, rgba(15, 50, 90, 0.2) 100%);
  z-index: 1;
}
.page-banner-content {
  position: relative;
  z-index: 2;
  width: 100%;
  max-width: min(720px, calc(66.666vw - 40px));
  padding: 0 20px;
  text-align: left;
  margin-left: clamp(20px, 33.333vw, 50%);
  transform: translateX(-50%);
}
.page-banner h1 {
  font-size: 2.2rem;
  font-weight: 700;
  margin-bottom: 12px;
  letter-spacing: 1px;
}
.page-banner p {
  font-size: 1rem;
  opacity: 0.92;
  line-height: 1.7;
}

/* ===== 面包屑 ===== */
.breadcrumb-bar {
  background: var(--bg-light);
  border-bottom: 1px solid #e0e0e0;
  padding: 12px 0;
}
.breadcrumb-bar .container {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--text-light);
}
.breadcrumb-bar a {
  color: var(--text-medium);
  transition: var(--transition);
}
.breadcrumb-bar a:hover { color: var(--primary); }
.breadcrumb-bar .sep { color: var(--text-light); }
.breadcrumb-bar .current { color: var(--text-dark); font-weight: 500; }

/* ===== Section 标题 ===== */
.section-head {
  margin-bottom: 40px;
}
.section-head.center {
  text-align: center;
}
.section-tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  color: var(--primary);
  letter-spacing: 2px;
  margin-bottom: 12px;
  text-transform: uppercase;
}
.section-title {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 12px;
  line-height: 1.3;
}
.section-sub {
  font-size: 1rem;
  color: var(--text-light);
  max-width: 600px;
  margin: 0 auto;
}
.section-sub:empty { display: none; }

/* ===== 首页概览卡片 ===== */
.overview-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.overview-card {
  background: #fff;
  border: 1px solid #e0e0e0;
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  transition: var(--transition);
  text-align: center;
}
.overview-card:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}
.overview-card .ov-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 20px;
  border-radius: var(--radius-md);
  background: var(--bg-blue-tint);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
}
.overview-card h3 {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 12px;
}
.overview-card p {
  font-size: 14px;
  color: var(--text-light);
  line-height: 1.7;
  margin-bottom: 16px;
}
.overview-card .ov-more {
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
  transition: var(--transition);
}
.overview-card:hover .ov-more {
  text-decoration: underline;
}

/* ===== 关于我们 ===== */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 50px;
  align-items: center;
}
.about-text p {
  margin-bottom: 16px;
  font-size: 1rem;
  color: var(--text-body);
  line-height: 1.9;
}
.about-lead {
  font-size: 1.1rem !important;
  font-weight: 400;
  color: var(--text-body) !important;
}
.about-lead .hl, p .hl {
  color: var(--primary);
  font-weight: 600;
}
/* 品牌名（金政集团）加黑强调 */
.brand-bold {
  color: var(--text-dark);
  font-weight: 700;
}
.group-members {
  margin-top: 28px;
  padding-top: 28px;
  border-top: 1px solid #e0e0e0;
}
.group-members h4 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 14px;
}
.member-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.member-tag {
  padding: 5px 14px;
  font-size: 13px;
  color: var(--text-medium);
  background: var(--bg-light);
  border: 1px solid #e0e0e0;
  border-radius: var(--radius-sm);
  transition: var(--transition);
}
.member-tag.active {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}
.member-tag:hover {
  border-color: var(--primary);
  color: var(--primary);
}
.member-tag.active:hover { color: #fff; }

.about-visual { position: relative; }
.about-card-stack {
  display: grid;
  gap: 16px;
}
.about-card {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-sm);
  border: 1px solid #e0e0e0;
  transition: var(--transition);
  display: flex;
  align-items: flex-start;
  gap: 16px;
}
.about-card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--primary);
}
.about-card svg {
  flex-shrink: 0;
  width: 44px; height: 44px;
  padding: 8px;
  border-radius: var(--radius-md);
}
.about-card h5 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 4px;
}
.about-card p {
  font-size: 13px;
  color: var(--text-light);
  margin: 0 !important;
}
.ac-1 svg { background: rgba(30,136,229,0.1); color: var(--primary); }
.ac-2 svg { background: rgba(46,139,87,0.1); color: var(--secondary); }
.ac-3 svg { background: rgba(30,136,229,0.1); color: var(--primary); }

/* ===== 统计数字 ===== */
.stats-bar {
  display: flex;
  justify-content: center;
  gap: 50px;
  flex-wrap: wrap;
  padding: 40px 0;
}
.stat-item { text-align: center; }
.stat-num {
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--primary);
  line-height: 1;
}
.stat-unit {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--primary);
}
.stat-label {
  display: block;
  font-size: 14px;
  color: var(--text-light);
  margin-top: 6px;
  font-weight: 500;
}
.stat-divider {
  width: 1px;
  height: 40px;
  background: #d0d0d0;
}

/* ===== 产品与服务 ===== */
.product-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.product-card {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  border: 1px solid #e0e0e0;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.product-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--primary);
}
.pc-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: var(--bg-blue-tint);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}
.product-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 10px;
  line-height: 1.4;
}
.product-card p {
  font-size: 14px;
  color: var(--text-light);
  line-height: 1.7;
  margin-bottom: 16px;
}
.pc-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.pc-tags span {
  padding: 3px 10px;
  font-size: 12px;
  color: var(--primary);
  background: rgba(30,136,229,0.08);
  border-radius: var(--radius-sm);
  font-weight: 500;
}
.pc-more {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  margin-top: 14px;
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
  transition: var(--transition);
}
.product-card:hover .pc-more { gap: 8px; }
.product-card[data-href], .product-item[data-href] { cursor: pointer; }

/* ===== 产品列表（左图右文，每行2款） ===== */
.product-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 30px 40px;
}
.product-item {
  display: flex;
  gap: 24px;
  padding: 24px;
  background: #fff;
  border: 1px solid #e0e0e0;
  border-radius: var(--radius-md);
  transition: var(--transition);
  align-items: flex-start;
  position: relative;
  cursor: pointer;
}
.product-item:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--primary);
  transform: translateY(-2px);
}
.product-item-img {
  flex-shrink: 0;
  width: 220px;
  height: 150px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--bg-light);
  border: 1px solid #eee;
}
.product-item-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.product-item-body {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.product-item-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-dark);
  line-height: 1.4;
  margin: 0;
}
.product-item-desc {
  font-size: 0.95rem;
  color: var(--text-medium);
  line-height: 1.8;
  margin: 0;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.product-item-more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  color: var(--primary);
  font-weight: 600;
  align-self: flex-start;
  transition: var(--transition);
}
.product-item:hover .product-item-more {
  gap: 10px;
  color: var(--primary-dark);
}

@media (max-width: 960px) {
  .product-list { grid-template-columns: 1fr; gap: 24px; }
}
@media (max-width: 640px) {
  .product-item {
    flex-direction: column;
    gap: 16px;
    padding: 18px;
  }
  .product-item-img {
    width: 100%;
    height: 180px;
  }
}

/* ===== 核心优势 ===== */
.adv-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.adv-card {
  padding: 32px 28px;
  background: var(--bg-light);
  border-radius: var(--radius-lg);
  border: 1px solid transparent;
  transition: var(--transition);
}
.adv-card:hover {
  background: #fff;
  border-color: #e0e0e0;
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}
.adv-icon {
  width: 52px; height: 52px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
}
.adv-icon-1 { background: rgba(30,136,229,0.1); color: var(--primary); }
.adv-icon-2 { background: rgba(46,139,87,0.1); color: var(--secondary); }
.adv-icon-3 { background: rgba(30,136,229,0.1); color: var(--primary); }
.adv-icon-4 { background: rgba(46,139,87,0.1); color: var(--secondary); }
.adv-icon-5 { background: rgba(30,136,229,0.1); color: var(--primary); }
.adv-icon-6 { background: rgba(46,139,87,0.1); color: var(--secondary); }
.adv-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 10px;
}
.adv-card p {
  font-size: 14px;
  color: var(--text-light);
  line-height: 1.8;
}

/* ===== 资质荣誉 ===== */
.qual-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.qual-card {
  background: #fff;
  border-radius: var(--radius-md);
  padding: 14px 10px 18px;
  text-align: center;
  border: 1px solid #e0e0e0;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  align-items: center;
}
.qual-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--primary);
}
.qual-img {
  width: 100%;
  height: 160px;
  object-fit: cover;
  border-radius: var(--radius-sm);
  margin-bottom: 12px;
}
.qual-card h4 {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-dark);
  line-height: 1.5;
}

/* ===== 产品详情页 · 产品特点（3列横向卡片，无图标）===== */
.advantages-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.advantages-grid .adv-card {
  padding: 22px 20px 20px;
  min-height: 138px;
  background: #fff;
  border: 1px solid #e4edf7;
  border-radius: var(--radius-lg);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  gap: 8px;
  justify-content: center;
  text-align: left;
  box-shadow: 0 4px 14px rgba(30,136,229,.05);
}
.advantages-grid .adv-card::before {
  content: "";
  width: 32px; height: 3px;
  border-radius: 3px;
  background: linear-gradient(90deg,#1e88e5,#42a5f5);
  margin-bottom: 6px;
}
.advantages-grid .adv-card:hover {
  transform: translateY(-5px);
  border-color: #1e88e5;
  box-shadow: 0 12px 28px rgba(30,136,229,.15);
}
.advantages-grid .adv-title {
  font-size: 16px;
  font-weight: 700;
  color: #1a3a5c;
  margin: 0 0 2px;
}
.advantages-grid .adv-desc {
  font-size: 13px;
  color: #5a6e87;
  line-height: 1.75;
  margin: 0;
}
.advantages-grid .adv-card .adv-icon { display: none; }

/* ===== 产品详情页 · 核心功能模块（每行 3 卡片，简化说明）===== */
body.product-detail .qual-grid {
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}
body.product-detail .qual-card {
  padding: 26px 22px 22px;
  text-align: left;
  align-items: flex-start;
  background: linear-gradient(180deg, #ffffff 0%, #f6faff 100%);
  border: 1px solid #e1ebf7;
  border-radius: 12px;
  min-height: 160px;
}
body.product-detail .qual-card::before {
  content: "";
  width: 40px; height: 4px;
  border-radius: 4px;
  background: linear-gradient(90deg,#1e88e5,#42a5f5);
  margin-bottom: 14px;
  flex: 0 0 auto;
}
body.product-detail .qual-card:hover {
  transform: translateY(-5px);
  border-color: #1e88e5;
  box-shadow: 0 14px 30px rgba(30,136,229,.14);
}
body.product-detail .qual-card .qual-img { display: none; }

/* 核心功能模块：当某产品恰好 4 个模块卡片时，桌面端呈 2×2 布局（避免 3+1 错位） */
@media (min-width: 1025px) {
  body.product-detail .qual-grid:has(> .qual-card:nth-child(4):last-child) {
    grid-template-columns: repeat(2, 1fr);
  }
}
body.product-detail .qual-card h4 {
  font-size: 17px;
  font-weight: 700;
  color: #1a3a5c;
  margin: 0 0 10px;
}
body.product-detail .qual-card p.qual-desc {
  font-size: 13.5px;
  line-height: 1.85;
  color: #5a6e87;
  margin: 0;
}

/* ===== 客户案例：合作伙伴Logo墙（仿参考图样式） ===== */
.partners-section {
  background: linear-gradient(180deg, #f3f8fe 0%, #eaf2fc 50%, #f3f8fe 100%);
  padding: 72px 0 96px;
}
.partners-head {
  margin-bottom: 48px;
}
.partners-head .section-tag {
  display: inline-block;
  font-size: 14px;
  letter-spacing: 3px;
  color: var(--primary);
  font-weight: 700;
  margin-bottom: 10px;
  padding-left: 14px;
  position: relative;
}
.partners-head .section-tag::before {
  content: '';
  position: absolute;
  left: 0; top: 50%;
  transform: translateY(-50%);
  width: 3px; height: 16px;
  background: var(--primary);
  border-radius: 2px;
}
.partners-head .section-title {
  font-size: 34px;
  font-weight: 700;
  color: #1a3a5c;
  margin: 0 0 12px;
  line-height: 1.25;
}
.partners-head .section-sub {
  font-size: 15px;
  color: #6c7c92;
  margin: 0;
}

.partners-wall {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 28px 34px;
  align-items: center;
}
.partner-cell {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 80px;
  padding: 16px 20px;
  background: #fff;
  border-radius: 6px;
  box-shadow: 0 2px 8px rgba(30, 136, 229, 0.05);
  transition: transform .35s ease, box-shadow .35s ease;
}
.partner-cell:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(30, 136, 229, 0.1);
}
.partner-cell svg { display: block; max-width: 100%; }
/* 为每个 logo 指定网格跨度，模拟参考图错落的尺寸 */
.partner-zhongke { grid-column: span 3; }
.partner-scity  { grid-column: span 3; }
.partner-vast   { grid-column: span 3; }
.partner-txcloud{ grid-column: span 3; }
.partner-pingan { grid-column: span 6; padding: 12px 20px; min-height: 96px; }
.partner-apusic { grid-column: span 3; }
.partner-gx     { grid-column: span 4; }
.partner-huawei { grid-column: span 4; padding: 18px 20px; min-height: 96px; }
.partner-boss   { grid-column: span 4; }
.partner-dinglian { grid-column: span 5; padding: 14px 20px; min-height: 88px; background: #2179d9; }
.partner-dameng { grid-column: span 4; }
.partner-longtu { grid-column: span 3; }
.partner-dingxuan { grid-column: span 5; padding: 12px 20px; min-height: 84px; }
.partner-yonyou { grid-column: span 2; padding: 10px 18px; min-height: 96px; }
.partner-audaque{ grid-column: span 5; }

@media (max-width: 1100px) {
  .partners-wall { grid-template-columns: repeat(6, 1fr); gap: 20px; }
  .partner-zhongke, .partner-scity, .partner-vast,
  .partner-txcloud, .partner-apusic, .partner-boss,
  .partner-dameng, .partner-longtu, .partner-yonyou { grid-column: span 2; }
  .partner-pingan, .partner-gx, .partner-huawei,
  .partner-dinglian, .partner-dingxuan, .partner-audaque { grid-column: span 3; }
}
@media (max-width: 640px) {
  .partners-wall { grid-template-columns: repeat(2, 1fr); gap: 14px; }
  .partner-cell,
  .partner-zhongke, .partner-scity, .partner-vast,
  .partner-txcloud, .partner-apusic, .partner-boss,
  .partner-dameng, .partner-longtu, .partner-yonyou,
  .partner-pingan, .partner-gx, .partner-huawei,
  .partner-dinglian, .partner-dingxuan, .partner-audaque { grid-column: span 1; min-height: 88px; padding: 12px; }
  .partners-head .section-title { font-size: 26px; }
}

/* ===== 联系我们 ===== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 30px;
}
.contact-info {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.contact-item {
  display: flex;
  gap: 14px;
  padding: 20px;
  background: #fff;
  border-radius: var(--radius-lg);
  border: 1px solid #e0e0e0;
  transition: var(--transition);
}
.contact-item:hover {
  box-shadow: var(--shadow-sm);
  border-color: var(--primary);
}
.contact-icon {
  width: 44px; height: 44px;
  flex-shrink: 0;
  border-radius: var(--radius-md);
  background: var(--primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
}
.contact-item h4 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 4px;
}
.contact-item p {
  font-size: 14px;
  color: var(--text-medium);
  line-height: 1.6;
}
.contact-cta {
  background: var(--primary);
  border-radius: var(--radius-lg);
  padding: 40px;
  display: flex;
  align-items: center;
}
.contact-cta-inner { position: relative; z-index: 1; }
.contact-cta h3 {
  font-size: 1.5rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 14px;
}
.contact-cta p {
  font-size: 14px;
  color: rgba(255,255,255,0.85);
  line-height: 1.8;
  margin-bottom: 24px;
}
.contact-cta .btn-primary {
  background: #fff;
  color: var(--primary);
}
.contact-cta .btn-primary:hover {
  background: var(--bg-light);
}

/* ===== 页脚 ===== */
.footer {
  background: #46506b;
  color: #d2dbe6;
  padding-top: 50px;
}
.footer-container {
  display: grid;
  grid-template-columns: 1.5fr 2fr;
  gap: 50px;
  padding-bottom: 40px;
}
.footer .logo-text { color: #fff; }
.footer .logo-text small { color: rgba(255,255,255,0.65); }
.footer-desc {
  font-size: 14px;
  line-height: 1.8;
  margin-top: 16px;
  max-width: 400px;
}
.footer-links {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}
.footer-col h5 {
  font-size: 15px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 14px;
}
.footer-col a, .footer-col span {
  display: block;
  font-size: 14px;
  color: #d2dbe6;
  margin-bottom: 8px;
  transition: var(--transition);
}
.footer-col a:hover {
  color: #fff;
  padding-left: 4px;
}
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.15);
  padding: 20px 0;
  text-align: center;
}
.footer-bottom p {
  font-size: 13px;
  color: #aab4c4;
}

/* ===== 回到顶部 ===== */
.back-to-top {
  position: fixed;
  bottom: 30px; right: 30px;
  width: 44px; height: 44px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-md);
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: var(--transition);
  z-index: 999;
}
.back-to-top.show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.back-to-top:hover {
  background: var(--primary-dark);
}

/* ===== 动画 ===== */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }
.reveal-delay-5 { transition-delay: 0.5s; }
.reveal-delay-6 { transition-delay: 0.6s; }
.reveal-delay-7 { transition-delay: 0.7s; }
.reveal-delay-8 { transition-delay: 0.8s; }
.reveal-delay-9 { transition-delay: 0.9s; }
.reveal-delay-10 { transition-delay: 1.0s; }

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  .product-grid { grid-template-columns: repeat(2, 1fr); }
  .qual-grid { grid-template-columns: repeat(3, 1fr); }
  body.product-detail .advantages-grid { grid-template-columns: repeat(2, 1fr); }
  body.product-detail .qual-grid { grid-template-columns: repeat(2, 1fr); }
  .overview-grid { grid-template-columns: repeat(2, 1fr); }
  .about-grid { gap: 40px; }
  .banner-slide-content { max-width: calc(100% - 80px); }
}

@media (max-width: 768px) {
  .section { padding: 40px 0; }
  .hide-mobile { display: none; }
  .nav-menu {
    position: fixed;
    top: var(--nav-h); left: 0; right: 0;
    background: #fff;
    flex-direction: column;
    padding: 16px;
    gap: 0;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
    transform: translateY(-150%);
    transition: var(--transition);
    border-bottom: 1px solid #e0e0e0;
  }
  .nav-menu.open { transform: translateY(0); }
  .nav-toggle { display: flex; }
  .nav-dropdown {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    border: none;
    padding-left: 20px;
  }
  .nav-item:hover .nav-dropdown {
    opacity: 1;
    visibility: visible;
    transform: none;
  }

  .banner-slider { height: 260px; }
  .banner-slide-content { transform: none; max-width: calc(100% - 40px); }
  .banner-slide-content h2 { font-size: 1.5rem; }
  .banner-slide-content p { font-size: 0.95rem; }
  .page-banner { height: 150px; }
  .page-banner h1 { font-size: 1.5rem; }
  .page-banner-content {
    margin-left: 20px;
    transform: none;
    max-width: calc(100% - 40px);
  }

  .stats-bar { gap: 24px; }
  .stat-divider { display: none; }
  .stat-num { font-size: 1.8rem; }

  .about-grid { grid-template-columns: 1fr; gap: 30px; }
  .overview-grid { grid-template-columns: 1fr; }
  .product-grid { grid-template-columns: 1fr; }
  .qual-grid { grid-template-columns: repeat(2, 1fr); }
  .adv-grid { grid-template-columns: 1fr; }
  body.product-detail .advantages-grid { grid-template-columns: repeat(2, 1fr); }
  body.product-detail .qual-grid { grid-template-columns: 1fr; }
  /* partners responsive rules moved into .partners-block */
  .contact-grid { grid-template-columns: 1fr; }
  .contact-cta { padding: 28px; }

  .footer-container { grid-template-columns: 1fr; gap: 30px; }
  .footer-links { grid-template-columns: 1fr; gap: 20px; }
  .section-head { margin-bottom: 30px; }
}

@media (max-width: 480px) {
  .container { padding: 0 16px; }
  .section-title { font-size: 1.5rem; }
  .section-sub { font-size: 0.9rem; }
  .qual-grid { grid-template-columns: 1fr; }
  body.product-detail .advantages-grid { grid-template-columns: 1fr; }
  .back-to-top { bottom: 20px; right: 20px; width: 40px; height: 40px; }
  /* partners responsive rules moved */
}

/* ===== 客户案例 · 客户清单（明亮清新版）===== */
.case-intro {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
  margin: -6px 0 40px;
}
.case-intro-pill {
  background: linear-gradient(135deg, #eaf3fe, #dcebfd);
  border: 1px solid rgba(30, 136, 229, 0.18);
  color: #2a3b52;
  padding: 8px 16px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 600;
  box-shadow: 0 2px 8px rgba(30, 136, 229, 0.10);
}
.case-intro-pill b {
  color: #1e88e5;
  font-size: 16px;
  margin-right: 4px;
}
.case-chip {
  position: relative;
  background: linear-gradient(135deg, #ffffff, #f3f9ff);
  border: 1px solid rgba(30, 136, 229, 0.14);
  border-radius: 12px;
  padding: 16px 20px;
  font-weight: 600;
  white-space: nowrap;
  box-shadow: 0 3px 10px rgba(30, 136, 229, 0.10);
  transition: transform 0.45s cubic-bezier(0.2, 0.7, 0.3, 1),
              box-shadow 0.35s ease,
              border-color 0.3s ease,
              background 0.3s ease,
              opacity 0.5s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  min-height: 58px;
  line-height: 1.4;
  overflow: hidden;
}
.case-chip::after {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  height: 3px;
  width: 100%;
  background: linear-gradient(90deg, #1e88e5, #42a5f5);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.35s ease;
}
.case-chip:hover {
  transform: translateY(-5px);
  box-shadow: 0 14px 28px rgba(30, 136, 229, 0.22);
  border-color: rgba(30, 136, 229, 0.5);
  background: linear-gradient(135deg, #ffffff, #e8f3ff);
}
.case-chip:hover::after { transform: scaleX(1); }
.case-chip-s { flex: 0 0 80%; }
.case-chip-lg { font-size: 23px; }
.case-chip-half { flex: 0 0 calc(50% - 7px); }
@media (max-width: 760px) {
  .case-chip-s, .case-chip-half { flex-basis: 100%; }
}
.case-name-1 { font-size: 17px;   color: #1a3a5c; }
.case-name-2 { font-size: 15px;   color: #0e7a9c; }
.case-name-3 { font-size: 18px;   color: #4b4f8a; }
.case-name-4 { font-size: 16px;   color: #2c6aaa; }
.case-name-5 { font-size: 16.5px; color: #7a4a8c; }
.case-name-6 { font-size: 18.5px; color: #1f6f5a; }
.case-name-7 { font-size: 15.5px; color: #a85a2c; }
.case-name-8 { font-size: 17.5px; color: #3a6b9c; }
/* 超长客户名称（13 字以上）：单独降一档字号 + 收窄左右内边距，
   保证单行完整显示，不被 .case-chip 的 overflow:hidden 裁切 */
.case-chip-long { font-size: 15px; padding-left: 14px; padding-right: 14px; }
@media (max-width: 560px) {
  .case-chip { white-space: normal; }
}

/* ============================================
   视觉点缀 · 在亮蓝主色内增色与装饰（不影响整体色调）
   ============================================ */

/* 区块背景柔光装饰：低透明度光斑，增加层次不抢主色 */
.section { overflow: hidden; }
.section::before,
.section::after {
  content: '';
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
  z-index: 0;
}
.section::before {
  width: 440px; height: 440px;
  top: -170px; right: -150px;
  background: radial-gradient(circle at center, rgba(30,136,229,0.10), rgba(30,136,229,0) 70%);
}
.section::after {
  width: 380px; height: 380px;
  bottom: -160px; left: -130px;
  background: radial-gradient(circle at center, rgba(46,139,87,0.09), rgba(46,139,87,0) 70%);
}
.section > * { position: relative; z-index: 1; }

/* 彩色渐变图标徽章：卡片图标不再单一蓝色 */
.ov-icon, .pc-icon, .contact-icon {
  background: linear-gradient(135deg, #1e88e5, #42a5f5);
  color: #fff;
  box-shadow: 0 8px 18px rgba(30,136,229,0.25);
}
/* 联系我们图标：克制配色 —— 浅蓝底 + 品牌色描边 */
.contact-grid .contact-icon {
  background: var(--bg-light);
  color: var(--primary);
  box-shadow: none;
  border: 1px solid rgba(30,136,229,0.18);
}
.overview-grid .overview-card:nth-child(2) .ov-icon { background: linear-gradient(135deg, #16b8a8, #2e8b57); box-shadow: 0 8px 18px rgba(46,139,87,0.25); }
.overview-grid .overview-card:nth-child(3) .ov-icon { background: linear-gradient(135deg, #6a5acd, #8e7cf0); box-shadow: 0 8px 18px rgba(106,90,205,0.25); }
.overview-grid .overview-card:nth-child(4) .ov-icon { background: linear-gradient(135deg, #f59e0b, #f97316); box-shadow: 0 8px 18px rgba(245,158,11,0.25); }
.overview-grid .overview-card:nth-child(5) .ov-icon { background: linear-gradient(135deg, #ec4899, #f43f5e); box-shadow: 0 8px 18px rgba(236,72,153,0.25); }
.overview-grid .overview-card:nth-child(6) .ov-icon { background: linear-gradient(135deg, #0ea5e9, #06b6d4); box-shadow: 0 8px 18px rgba(14,165,233,0.25); }

.product-grid .product-card:nth-child(3n+2) .pc-icon { background: linear-gradient(135deg, #16b8a8, #2e8b57); box-shadow: 0 8px 18px rgba(46,139,87,0.22); }
.product-grid .product-card:nth-child(3n+3) .pc-icon { background: linear-gradient(135deg, #6a5acd, #8e7cf0); box-shadow: 0 8px 18px rgba(106,90,205,0.22); }

/* 统计数字渐变 + 下方小彩条 */
.stat-item { position: relative; }
.stat-num {
  background: linear-gradient(135deg, #1e88e5, #1565c0);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: #1e88e5;
}
.stat-item::after {
  content: '';
  position: absolute;
  left: 50%; transform: translateX(-50%);
  bottom: -16px;
  width: 36px; height: 4px;
  border-radius: 4px;
  background: linear-gradient(90deg, #1e88e5, #42a5f5);
}

/* 区块标题标签前置彩点 */
.section-tag { position: relative; padding-left: 16px; }
.section-tag::before {
  content: '';
  position: absolute;
  left: 0; top: 50%;
  transform: translateY(-50%);
  width: 7px; height: 7px;
  border-radius: 50%;
  background: linear-gradient(135deg, #1e88e5, #42a5f5);
  box-shadow: 0 0 0 4px rgba(30,136,229,0.15);
}

/* 联系我们 CTA 装饰光晕 */
.contact-cta { position: relative; overflow: hidden; }
.contact-cta::before {
  content: '';
  position: absolute;
  width: 240px; height: 240px;
  right: -70px; top: -80px;
  border-radius: 50%;
  background: radial-gradient(circle at center, rgba(255,255,255,0.10), rgba(255,255,255,0) 70%);
  z-index: 0;
}

/* 首页产品图片展示带 */
.home-products-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}
.home-product-card {
  display: block;
  background: #fff;
  border: 1px solid #e0e0e0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition);
}
.home-product-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
  border-color: var(--primary);
}
.hp-img {
  height: 150px;
  overflow: hidden;
  background: linear-gradient(135deg, #eaf3fe, #dcebfd);
}
.hp-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.home-product-card:hover .hp-img img { transform: scale(1.06); }
.hp-title {
  padding: 14px 16px;
  font-size: 15px;
  font-weight: 700;
  color: var(--text-dark);
}
@media (max-width: 900px) { .home-products-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .home-products-grid { grid-template-columns: 1fr; } }