/* ============================================================
   聚信医药科技 - 官网滚屏设计样式
   说明：本文件为独立样式表，可直接修改数值微调
   结构：变量 → 通用 → 导航 → Hero → 关于 → 服务 → 领域 → 优势 → 案例 → 联系 → 页脚 → 响应式
   ============================================================ */

/* ========== 全局变量（可在此统一调整主题色、间距等） ========== */
:root {
  /* 主题色 */
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --primary-light: #60a5fa;
  --primary-bg: #eff6ff;
  --primary-bg-soft: #f0f6ff;

  /* 文字色 */
  --text-title: #0f172a;
  --text-body: #1a2b4a;
  --text-muted: #64748b;
  --text-light: #94a3b8;

  /* 边框与背景 */
  --border: #e2e8f0;
  --border-light: #f1f5f9;
  --bg-white: #ffffff;
  --bg-gray: #f8fafc;

  /* 圆角 */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 14px;
  --radius-xl: 16px;
  --radius-pill: 20px;

  /* 阴影 */
  --shadow-sm: 0 2px 12px rgba(37, 99, 235, 0.06);
  --shadow-md: 0 4px 24px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 8px 30px rgba(37, 99, 235, 0.12);

  /* 布局 */
  --container-padding: 60px;
  --section-padding: 80px;
}

/* ========== 通用重置 ========== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

/* 全屏滚动：锁定body滚动，由JS控制容器位移 */
html, body {
  height: 100%;
  overflow: hidden;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  color: var(--text-body);
  background: var(--bg-white);
  line-height: 1.6;
}

a {
  text-decoration: none;
  color: inherit;
}

ul {
  list-style: none;
}

img {
  max-width: 100%;
  display: block;
}

/* ========== 通用按钮 ========== */
.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  padding: 8px 22px;
  border-radius: var(--radius-pill);
  font-size: 14px;
  font-weight: 500;
  border: none;
  cursor: pointer;
  transition: opacity 0.2s, transform 0.2s;
}

.btn-primary:hover {
  opacity: 0.9;
  transform: translateY(-1px);
}

.btn-outline {
  background: transparent;
  color: var(--primary);
  padding: 8px 22px;
  border-radius: var(--radius-pill);
  font-size: 14px;
  font-weight: 500;
  border: 1.5px solid var(--primary);
  cursor: pointer;
  transition: all 0.2s;
}

.btn-outline:hover {
  background: var(--primary-bg);
}

/* ========== 通用区块标签与标题 ========== */
.section-label {
  font-size: 13px;
  color: var(--text-light);
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 10px;
  font-weight: 500;
}

.section-title {
  font-size: 32px;
  font-weight: 800;
  color: var(--text-title);
  line-height: 1.3;
  margin-bottom: 20px;
}

.section-title span {
  color: var(--primary);
}

.section-desc {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.8;
  margin-bottom: 30px;
  max-width: 480px;
}

/* 大号装饰数字（背景水印） */
.deco-big-num {
  position: absolute;
  font-size: 140px;
  font-weight: 900;
  color: rgba(37, 99, 235, 0.06);
  line-height: 1;
  pointer-events: none;
  z-index: 0;
  user-select: none;
}

/* ============================================================
   1. 导航栏
   ============================================================ */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.70);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  height: 64px;
  display: flex;
  align-items: stretch;
  padding: 0 var(--container-padding);
  box-shadow: 0 1px 8px rgba(0, 0, 0, 0.04);
  transition: box-shadow 0.3s, background 0.3s;
}

/* 滚动后导航栏阴影加深（JS添加类） */
.navbar.scrolled {
  box-shadow: 0 2px 16px rgba(0, 0, 0, 0.08);
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 18px;
  font-weight: 700;
  color: var(--text-body);
  margin-right: 60px;
  cursor: pointer;
}

.nav-logo-img {
  height: 36px;
  width: auto;
  display: block;
}

.nav-logo-icon {
  width: 28px;
  height: 28px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 14px;
  font-weight: 800;
}

.nav-menu {
  display: flex;
  gap: 36px;
  flex: 1;
  align-items: stretch;
  justify-content: flex-start;
  padding-right: 0;
}

/* 每个一级导航项撑满导航栏高度，内部文字垂直居中，
   使下拉菜单 top:100% 正好落在导航栏底部、不重叠 */
.nav-menu > li { display:flex; align-items:center; position:relative; }

.nav-menu a {
  font-size: 14px;
  color: #475569;
  font-weight: 600;
  text-align: left;
  transition: color 0.2s;
  position: relative;
}

.nav-menu a:hover,
.nav-menu a.active {
  color: var(--primary);
}

/* 下拉菜单 */
.nav-item-has-sub {
  position: relative;
}

.nav-submenu {
  position: absolute;
  top: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%);
  min-width: 160px;
  background: rgba(255,255,255,0.82);
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  border-radius: 8px;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
  padding: 8px 0;
  list-style: none;
  margin: 0;
  opacity: 0;
  visibility: hidden;
  transform: translateX(-50%) translateY(10px);
  transition: all 0.25s ease;
  z-index: 1000;
}

.nav-submenu-wide {
  min-width: 240px;
}

.nav-item-has-sub:hover .nav-submenu {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

.nav-submenu li {
  padding: 0;
  margin: 0;
}

.nav-submenu a {
  display: block;
  padding: 8px 20px;
  font-size: 13px;
  font-weight: 500;
  color: #475569;
  text-decoration: none;
  white-space: nowrap;
  transition: all 0.15s;
}

.nav-submenu a:hover {
  background: linear-gradient(135deg, var(--primary-bg), #dbeafe);
  color: var(--primary);
  padding-left: 24px;
}

/* 有下拉菜单的导航项添加下拉箭头 */
.nav-item-has-sub > a::after {
  content: "";
  display: inline-block;
  width: 0;
  height: 0;
  margin-left: 6px;
  vertical-align: middle;
  border-left: 4px solid transparent;
  border-right: 4px solid transparent;
  border-top: 5px solid currentColor;
  opacity: 0.6;
}


/* 当前导航项下划线 */
.nav-menu a.active::after {
  content: "";
  position: absolute;
  bottom: -22px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--primary);
  border-radius: 1px;
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 20px;
}

.nav-search {
  width: 20px;
  height: 20px;
  color: #64748b;
  cursor: pointer;
  transition: color 0.2s;
}

.nav-search:hover {
  color: var(--primary);
}

/* ============================================================
   全屏滚动核心样式
   ============================================================ */
.fp-wrapper {
  height: 100%;
  transition: transform 0.8s cubic-bezier(0.645, 0.045, 0.355, 1);
  will-change: transform;
}

/* 每个板块占满一屏 */
.fp-section {
  height: 100vh;
  width: 100%;
  overflow: hidden;
  position: relative;
}

/* 侧边导航点 */
.fp-dots {
  position: fixed;
  right: 32px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 99;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.fp-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(37, 99, 235, 0.25);
  cursor: pointer;
  transition: all 0.3s ease;
  position: relative;
  border: none;
  padding: 0;
}

.fp-dot::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0);
  width: 22px;
  height: 22px;
  border: 1.5px solid var(--primary);
  border-radius: 50%;
  transition: transform 0.3s ease;
}

.fp-dot.active {
  background: var(--primary);
  transform: scale(1.2);
}

.fp-dot.active::before {
  transform: translate(-50%, -50%) scale(1);
}

.fp-dot:hover {
  background: rgba(37, 99, 235, 0.5);
}

.fp-dot-label {
  position: absolute;
  right: 24px;
  top: 50%;
  transform: translateY(-50%);
  white-space: nowrap;
  font-size: 12px;
  color: var(--text-muted);
  background: rgba(255, 255, 255, 0.9);
  padding: 4px 10px;
  border-radius: 4px;
  opacity: 0;
  transition: opacity 0.3s;
  pointer-events: none;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.fp-dot:hover .fp-dot-label {
  opacity: 1;
}

/* 板块切换时的内容动画 */
.fp-section .section-content {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fp-section.active .section-content {
  opacity: 1;
  transform: translateY(0);
}

/* 滚动提示（首屏底部） */
.scroll-hint {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--text-light);
  font-size: 12px;
  animation: scrollBounce 2s infinite;
  z-index: 5;
}

.scroll-hint svg {
  width: 20px;
  height: 20px;
}

@keyframes scrollBounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(8px); }
}

/* ============================================================
   2. Hero 首屏区域
   ============================================================ */
.hero {
  position: relative;
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, #eef5ff 0%, #ffffff 45%, #f0faf4 100%);
  overflow: hidden;
}

/* 装饰圆形 */
.hero-deco-circle1 {
  position: absolute;
  top: -60px;
  left: -40px;
  width: 180px;
  height: 180px;
  background: radial-gradient(circle, rgba(37, 99, 235, 0.12), transparent 70%);
  border-radius: 50%;
}

.hero-deco-circle2 {
  position: absolute;
  top: 40px;
  left: 140px;
  width: 60px;
  height: 60px;
  background: rgba(37, 99, 235, 0.08);
  border-radius: 50%;
}

.hero-deco-circle3 {
  position: absolute;
  bottom: 80px;
  left: -30px;
  width: 100px;
  height: 100px;
  background: rgba(37, 99, 235, 0.1);
  border-radius: 50%;
  z-index: 1;
}

.hero-left {
  flex: 1;
  padding: var(--section-padding) var(--container-padding);
  display: flex;
  flex-direction: column;
  justify-content: center;
  position: relative;
  z-index: 2;
}

.hero-title {
  font-size: 42px;
  font-weight: 800;
  line-height: 1.25;
  color: var(--text-title);
  margin-bottom: 20px;
}

.hero-title span {
  color: var(--primary);
}

.hero-subtitle {
  font-size: 16px;
  color: var(--primary);
  font-weight: 600;
  margin-bottom: 12px;
  letter-spacing: 1px;
}

.hero-desc {
  font-size: 14px;
  color: var(--text-muted);
  max-width: 420px;
  margin-bottom: 32px;
  line-height: 1.8;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  margin-bottom: 40px;
}

/* 数据统计卡片 */
.hero-stats {
  display: flex;
  gap: 16px;
}

.stat-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 14px 20px;
  min-width: 110px;
  box-shadow: var(--shadow-sm);
  transition: transform 0.2s, box-shadow 0.2s;
}

.stat-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.stat-num {
  font-size: 24px;
  font-weight: 800;
  color: var(--primary);
  line-height: 1.2;
}

.stat-label {
  font-size: 12px;
  color: var(--text-light);
  margin-top: 2px;
}

/* Hero 右侧图片区 */
.hero-right {
  flex: 1;
  position: relative;
  overflow: hidden;
  height: 100%;
}

.hero-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* ============================================================
   3. 关于聚信
   ============================================================ */
.about {
  position: relative;
  display: flex;
  align-items: center;
  padding: var(--section-padding) var(--container-padding);
  gap: 60px;
  background: linear-gradient(135deg, #ffffff 0%, #f0f6ff 60%, #f5fbf7 100%);
  overflow: hidden;
}

.about-left {
  flex: 1;
  position: relative;
}

/* 公司大楼图片（右上角大圆角） */
.about-img {
  width: 100%;
  height: 380px;
  border-radius: 0 120px 0 0;
  object-fit: cover;
  display: block;
}

/* 国家高新技术企业标签 */
.about-badge {
  position: absolute;
  bottom: -20px;
  left: 30px;
  background: #fff;
  border-radius: var(--radius-md);
  padding: 14px 24px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
  display: flex;
  align-items: center;
  gap: 10px;
  z-index: 3;
}

.about-badge-icon {
  width: 32px;
  height: 32px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 16px;
}

.about-badge-text {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-body);
}

.about-right {
  flex: 1;
  position: relative;
}

/* 关于区域数据卡片 */
.about-stats {
  display: flex;
  gap: 16px;
  margin-bottom: 30px;
}

.about-stat {
  flex: 1;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 18px 16px;
  text-align: center;
  transition: transform 0.2s, border-color 0.2s;
}

.about-stat:hover {
  transform: translateY(-2px);
  border-color: var(--primary-light);
}

.about-stat-num {
  font-size: 28px;
  font-weight: 800;
  color: var(--primary);
}

.about-stat-label {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 4px;
}

/* 数据卡片图标 */
.about-stat-icon {
  width: 36px;
  height: 36px;
  margin: 0 auto 10px;
  background: linear-gradient(135deg, var(--primary-bg), #dbeafe);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
}

/* 公司理念 */
.about-quote {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 24px;
  padding: 12px 16px;
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.05), rgba(34, 197, 94, 0.03));
  border-left: 3px solid var(--primary);
  border-radius: 0 8px 8px 0;
}

.about-quote-mark {
  font-size: 28px;
  color: var(--primary);
  font-weight: 800;
  line-height: 1;
  opacity: 0.5;
}

.about-quote-text {
  font-size: 14px;
  color: var(--text-body);
  font-weight: 600;
  letter-spacing: 1px;
}

/* 资质认证标签 */
.about-certs {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 24px;
}

.about-cert {
  font-size: 12px;
  color: var(--text-muted);
  background: #fff;
  border: 1px solid var(--border);
  padding: 5px 12px;
  border-radius: 14px;
  transition: all 0.2s;
}

.about-cert:hover {
  border-color: var(--primary-light);
  color: var(--primary);
  background: var(--primary-bg);
}

/* 背景装饰圆形 */
.about-deco-circle1 {
  position: absolute;
  top: 60px;
  right: 15%;
  width: 140px;
  height: 140px;
  background: radial-gradient(circle, rgba(37, 99, 235, 0.06), transparent 70%);
  border-radius: 50%;
  z-index: 0;
}

.about-deco-circle2 {
  position: absolute;
  bottom: 80px;
  left: 5%;
  width: 100px;
  height: 100px;
  background: radial-gradient(circle, rgba(34, 197, 94, 0.05), transparent 70%);
  border-radius: 50%;
  z-index: 0;
}

/* 图片叠加元素 */
.about-img-overlay {
  position: absolute;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(8px);
  border-radius: 12px;
  padding: 12px 18px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.12);
  z-index: 4;
  text-align: center;
}

.about-year {
  top: 24px;
  right: 24px;
}

.about-year-num {
  font-size: 24px;
  font-weight: 800;
  color: var(--primary);
  line-height: 1;
}

.about-year-text {
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 2px;
}

.about-partner {
  bottom: 60px;
  right: 24px;
}

.about-partner-num {
  font-size: 22px;
  font-weight: 800;
  color: #16a34a;
  line-height: 1;
}

.about-partner-text {
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 2px;
}

/* ============================================================
   4. 六大核心服务
   ============================================================ */
.services {
  position: relative;
  padding: var(--section-padding) var(--container-padding);
  background: linear-gradient(180deg, #f5f9ff 0%, #eef5ff 40%, #ffffff 80%, #f5fbf7 100%);
  text-align: center;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.services .deco-big-num {
  top: 20px;
  right: var(--container-padding);
}

.services-header {
  margin-bottom: 50px;
  position: relative;
  z-index: 2;
}

.services-grid {
  display: flex;
  gap: 20px;
  justify-content: center;
  position: relative;
  z-index: 2;
}

.service-card {
  flex: 1;
  max-width: 200px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 30px 20px;
  transition: all 0.3s;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.03);
  cursor: pointer;
}

.service-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: #bfdbfe;
}

.service-icon {
  width: 48px;
  height: 48px;
  margin: 0 auto 16px;
  background: linear-gradient(135deg, var(--primary-bg), #dbeafe);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  font-size: 22px;
}

.service-num {
  font-size: 11px;
  color: var(--text-light);
  letter-spacing: 1px;
  margin-bottom: 6px;
}

.service-name {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-title);
  margin-bottom: 8px;
}

.service-desc {
  font-size: 12px;
  color: var(--text-light);
  line-height: 1.6;
}

.service-bottom-text {
  margin-top: 24px;
  font-size: 13px;
  color: var(--text-muted);
  display: flex;
  justify-content: center;
  gap: 40px;
}

/* ============================================================
   5. 五大临床研究领域
   ============================================================ */
.fields {
  position: relative;
  display: flex;
  align-items: center;
  padding: var(--section-padding) var(--container-padding);
  gap: 50px;
  background: linear-gradient(135deg, #ffffff 0%, #f5fbf7 35%, #eef5ff 100%);
  overflow: hidden;
}

.fields .deco-big-num {
  top: 60px;
  left: 30%;
  font-size: 180px;
}

.fields-left {
  flex: 0 0 38%;
  position: relative;
  z-index: 2;
}

/* 标签云 */
.fields-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 24px 0;
}

.tag {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  padding: 6px 16px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 500;
  box-shadow: 0 2px 8px rgba(37, 99, 235, 0.2);
  transition: transform 0.2s;
}

.tag:hover {
  transform: translateY(-1px);
}

.tag.light {
  background: var(--primary-bg);
  color: var(--primary);
  box-shadow: none;
}

/* 大数字统计 */
.fields-big-stat {
  display: flex;
  align-items: flex-end;
  gap: 8px;
  margin-top: 20px;
}

.fields-big-num {
  font-size: 56px;
  font-weight: 900;
  color: var(--primary);
  line-height: 1;
}

.fields-big-unit {
  font-size: 20px;
  font-weight: 700;
  color: var(--primary);
  padding-bottom: 6px;
}

.fields-big-label {
  font-size: 12px;
  color: var(--text-light);
  padding-bottom: 8px;
  margin-left: 4px;
}

/* 右侧卡片网格 */
.fields-right {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 14px;
  position: relative;
  z-index: 2;
}

.fields-row {
  display: grid;
  gap: 14px;
}

.fields-row-1,
.fields-row-2 {
  grid-template-columns: repeat(3, 1fr);
}

.fields-row-3 {
  grid-template-columns: repeat(4, 1fr);
}

.field-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 22px 18px;
  transition: all 0.3s;
  cursor: pointer;
}

.field-card:hover {
  border-color: #bfdbfe;
  box-shadow: 0 4px 20px rgba(37, 99, 235, 0.1);
  transform: translateY(-2px);
}

.field-icon {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--primary-bg), #dbeafe);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  font-size: 16px;
  margin-bottom: 12px;
}

.field-name {
  font-size: 14px;
  font-weight: 700;
  color: var(--text-title);
  margin-bottom: 4px;
}

.field-desc {
  font-size: 11px;
  color: var(--text-light);
  line-height: 1.5;
}

/* ============================================================
   6. 五大核心优势
   ============================================================ */
.advantages {
  position: relative;
  padding: var(--section-padding) var(--container-padding);
  background: linear-gradient(180deg, #ffffff 0%, #eef5ff 45%, #f0faf4 100%);
  text-align: center;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.advantages-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 80% 20%, rgba(37, 99, 235, 0.06) 0%, transparent 50%),
    radial-gradient(ellipse at 10% 80%, rgba(37, 99, 235, 0.04) 0%, transparent 50%),
    radial-gradient(ellipse at 50% 100%, rgba(34, 197, 94, 0.04) 0%, transparent 40%);
}

.advantages-header {
  margin-bottom: 50px;
  position: relative;
  z-index: 2;
}

.advantages-grid {
  display: flex;
  flex-wrap: nowrap;
  gap: 0;
  justify-content: center;
  position: relative;
  z-index: 2;
}

.adv-card {
  flex: 1;
  max-width: 220px;
  background: #fff;
  border: 1px solid var(--border);
  padding: 30px 20px;
  position: relative;
  transition: all 0.3s;
  cursor: pointer;
}

.adv-card:first-child {
  border-radius: var(--radius-xl) 0 0 var(--radius-xl);
}

.adv-card:last-child {
  border-radius: 0 var(--radius-xl) var(--radius-xl) 0;
}

.adv-card + .adv-card {
  border-left: none;
}

.adv-card:hover {
  background: linear-gradient(180deg, #fff 0%, var(--primary-bg-soft) 100%);
  z-index: 3;
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.adv-num {
  font-size: 32px;
  font-weight: 900;
  color: var(--primary);
  margin-bottom: 16px;
  line-height: 1;
}

.adv-icon {
  width: 40px;
  height: 40px;
  margin: 0 auto 14px;
  background: linear-gradient(135deg, var(--primary-bg), #dbeafe);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  font-size: 18px;
}

.adv-name {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-title);
  margin-bottom: 10px;
}

.adv-desc {
  font-size: 12px;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 14px;
}

/* 卡片顶部标签 */
.adv-tag {
  display: inline-block;
  padding: 3px 10px;
  background: linear-gradient(135deg, var(--primary-bg), #dbeafe);
  color: var(--primary);
  font-size: 11px;
  font-weight: 600;
  border-radius: 10px;
  margin-bottom: 12px;
  letter-spacing: 0.5px;
}

/* 卡片底部关键词 */
.adv-keywords {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  justify-content: center;
  padding-top: 12px;
  border-top: 1px dashed var(--border-light);
}

.adv-keywords span {
  font-size: 11px;
  color: var(--text-light);
  background: var(--bg-gray);
  padding: 3px 8px;
  border-radius: 8px;
}

/* 中间突出卡片 */
.adv-card.featured {
  background: linear-gradient(180deg, #ffffff 0%, #f0f6ff 50%, #f5fbf7 100%);
  border: 1.5px solid var(--primary-light);
  box-shadow: 0 4px 24px rgba(37, 99, 235, 0.12);
  transform: scale(1.03);
  z-index: 2;
}

.adv-card.featured .adv-num {
  color: var(--primary-dark);
}

.adv-card.featured .adv-tag {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
}

.adv-card.featured:hover {
  transform: scale(1.03) translateY(-4px);
  box-shadow: 0 8px 32px rgba(37, 99, 235, 0.18);
}

/* 标题描述 */
.adv-header-desc {
  font-size: 14px;
  color: var(--text-muted);
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.8;
}

/* 背景装饰 */
.adv-deco-num {
  top: 40px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 200px;
}

.adv-deco-circle1 {
  position: absolute;
  top: 80px;
  left: 8%;
  width: 120px;
  height: 120px;
  background: radial-gradient(circle, rgba(37, 99, 235, 0.08), transparent 70%);
  border-radius: 50%;
  z-index: 0;
}

.adv-deco-circle2 {
  position: absolute;
  bottom: 100px;
  right: 10%;
  width: 100px;
  height: 100px;
  background: radial-gradient(circle, rgba(34, 197, 94, 0.06), transparent 70%);
  border-radius: 50%;
  z-index: 0;
}

/* 底部总结 */
.adv-footer {
  text-align: center;
  margin-top: 30px;
  position: relative;
  z-index: 2;
}

.adv-footer-text {
  font-size: 13px;
  color: var(--text-muted);
  letter-spacing: 1px;
}

.adv-footer-text strong {
  color: var(--primary);
  font-weight: 600;
}

/* 底部蓝色渐变条 */
.adv-bottom-bar {
  margin-top: 20px;
  height: 8px;
  background: linear-gradient(90deg, var(--primary), var(--primary-light));
  border-radius: 4px;
  max-width: 1100px;
  margin-left: auto;
  margin-right: auto;
  position: relative;
  z-index: 2;
}

/* ============================================================
   7. 成功案例
   ============================================================ */
.cases {
  position: relative;
  display: flex;
  align-items: center;
  padding: var(--section-padding) var(--container-padding);
  gap: 50px;
  background: linear-gradient(135deg, #eef5ff 0%, #ffffff 50%, #f5fbf7 100%);
  overflow: hidden;
}

.cases .deco-big-num {
  bottom: 40px;
  left: 20%;
  font-size: 160px;
}

.cases-left {
  flex: 0 0 35%;
  position: relative;
  z-index: 2;
}

.cases-stats {
  margin: 30px 0;
}

.cases-stat-row {
  display: flex;
  align-items: flex-end;
  gap: 6px;
  margin-bottom: 8px;
}

.cases-stat-num {
  font-size: 48px;
  font-weight: 900;
  color: var(--primary);
  line-height: 1;
}

.cases-stat-unit {
  font-size: 18px;
  font-weight: 700;
  color: var(--primary);
  padding-bottom: 4px;
}

.cases-stat-text {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-title);
  padding-bottom: 6px;
}

/* 右侧案例列表 */
.cases-right {
  flex: 1;
  display: flex;
  gap: 20px;
  position: relative;
  z-index: 2;
}

.case-column {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.case-item {
  background: #fff;
  border: 1px solid var(--border);
  border-left: 3px solid var(--primary);
  padding: 14px 18px;
  font-size: 13px;
  color: #334155;
  line-height: 1.6;
  transition: all 0.2s;
  cursor: pointer;
}

.case-item:first-child {
  border-radius: var(--radius-sm) var(--radius-sm) 0 0;
}

.case-item:last-child {
  border-radius: 0 0 var(--radius-sm) var(--radius-sm);
}

.case-item + .case-item {
  border-top: none;
}

.case-item:hover {
  background: var(--bg-gray);
  border-left-color: var(--primary-dark);
  padding-left: 22px;
}

.case-item strong {
  color: var(--text-title);
  font-weight: 600;
}

/* ============================================================
   8. 联系我们
   ============================================================ */
.contact {
  position: relative;
  padding: var(--section-padding) var(--container-padding);
  text-align: center;
  overflow: hidden;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  background: linear-gradient(135deg, #d6e8fb 0%, #e0ecfb 50%, #d9f1e5 100%);
}

/* 联系区域背景图 */
.contact-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  overflow: hidden;
}

.contact-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.32;
}

/* 背景图上的渐变遮罩 */
.contact-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.55) 0%, rgba(238, 245, 255, 0.65) 50%, rgba(240, 250, 244, 0.55) 100%);
}

.contact-deco-circle {
  position: absolute;
  top: -40px;
  left: -30px;
  width: 160px;
  height: 160px;
  background: radial-gradient(circle, rgba(37, 99, 235, 0.1), transparent 70%);
  border-radius: 50%;
  z-index: 1;
}

.contact-deco-circle2 {
  position: absolute;
  top: 30px;
  left: 120px;
  width: 50px;
  height: 50px;
  background: rgba(37, 99, 235, 0.08);
  border-radius: 50%;
  z-index: 1;
}

.contact-content {
  position: relative;
  z-index: 2;
  margin-bottom: 0;
}

.contact-title {
  font-size: 32px;
  font-weight: 800;
  color: var(--text-title);
  margin-bottom: 12px;
}

.contact-subtitle {
  font-size: 16px;
  color: var(--text-muted);
  margin-bottom: 32px;
}

.contact-buttons {
  display: flex;
  justify-content: center;
  gap: 16px;
  margin-bottom: 50px;
}

/* 联系信息卡片 */
.contact-cards {
  display: flex;
  justify-content: center;
  gap: 20px;
  position: relative;
  z-index: 3;
}

.contact-card {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 24px 30px;
  min-width: 240px;
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.08);
  text-align: left;
  transition: transform 0.2s, box-shadow 0.2s;
}

.contact-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.12);
}

.contact-card-label {
  font-size: 13px;
  color: var(--text-light);
  margin-bottom: 6px;
}

.contact-card-value {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-title);
  line-height: 1.6;
}

.contact-card-value a {
  color: var(--primary);
}

.contact-card-value a:hover {
  text-decoration: underline;
}

/* ============================================================
   9. 页脚
   ============================================================ */
.footer {
  background: linear-gradient(135deg, #e8f0fe 0%, #f0f6ff 50%, #eefaf2 100%);
  padding: 18px var(--container-padding);
  text-align: center;
  font-size: 12px;
  color: var(--text-light);
  border-top: 1px solid var(--border-light);
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 2;
}

.footer a {
  color: var(--primary);
  text-decoration: none;
  font-weight: 600;
  transition: color 0.2s;
}

.footer a:hover {
  color: var(--primary-dark);
  text-decoration: underline;
}

/* 第二屏和第五屏内容整体下移 */
.about,
.advantages {
  padding-top: calc(var(--section-padding) + 30px);
}

/* ============================================================
   10. 响应式布局（900px以下切换为移动端堆叠）
   ============================================================ */
@media (max-width: 900px) {
  :root {
    --container-padding: 24px;
    --section-padding: 50px;
  }

  /* 小屏幕禁用全屏滚动，恢复正常滚动 */
  html, body {
    height: auto;
    overflow: auto;
  }

  .fp-wrapper {
    height: auto;
    transform: none !important;
    transition: none;
  }

  .fp-section {
    height: auto;
    min-height: 100vh;
  }

  .fp-dots,
  .scroll-hint {
    display: none;
  }

  /* 移动端页脚恢复正常流 */
  .footer {
    position: static;
  }

  .contact-content {
    margin-bottom: 0;
  }

  .navbar {
    padding: 0 24px;
  }

  .nav-menu {
    gap: 16px;
  }

  .nav-menu a.active::after {
    display: none;
  }

  /* 各区块切换为上下堆叠 */
  .hero,
  .about,
  .fields,
  .cases {
    flex-direction: column;
    padding: 50px 24px;
  }

  .hero-left,
  .about-left,
  .fields-left,
  .cases-left {
    flex: none;
    width: 100%;
  }

  /* 响应式下Hero内容区去掉左右padding，由父容器统一控制 */
  .hero-left {
    padding: 0 0 30px 0;
  }

  .hero-right {
    min-height: 360px;
  }

  .hero-img {
    min-height: 360px;
  }

  .about-img {
    height: 280px;
  }

  .services,
  .advantages,
  .contact {
    padding: 50px 24px;
  }

  /* 服务卡片换行 */
  .services-grid {
    flex-wrap: wrap;
  }

  .service-card {
    max-width: 45%;
  }

  .service-bottom-text {
    flex-wrap: wrap;
    gap: 16px;
  }

  /* 研究领域卡片2列 */
  .fields-right {
    grid-template-columns: repeat(2, 1fr);
  }

  /* 优势卡片换行 */
  .advantages-grid {
    flex-wrap: wrap;
  }

  .adv-card {
    max-width: 45%;
    border-radius: var(--radius-xl) !important;
    border: 1px solid var(--border) !important;
    margin: 4px;
  }

  /* 案例列表切换为上下排列 */
  .cases-right {
    flex-direction: column;
  }

  /* 联系卡片纵向排列 */
  .contact-cards {
    flex-direction: column;
    align-items: center;
  }

  .contact-card {
    width: 100%;
    max-width: 400px;
  }

  /* 标题字号缩小 */
  .hero-title {
    font-size: 32px;
  }

  .section-title,
  .contact-title {
    font-size: 26px;
  }
}

/* 超小屏（480px以下） */
@media (max-width: 480px) {
  .nav-menu {
    display: none; /* 超小屏隐藏菜单，可后续加汉堡按钮 */
  }

  .hero-stats {
    flex-wrap: wrap;
  }

  .stat-card {
    min-width: calc(50% - 8px);
  }

  .about-stats {
    flex-wrap: wrap;
  }

  .about-stat {
    min-width: calc(50% - 8px);
  }

  .service-card {
    max-width: 100%;
  }

  .fields-right {
    grid-template-columns: 1fr;
  }

  .adv-card {
    max-width: 100%;
  }
}

/* ============================================================
   十大业务领域
   ============================================================ */
.business {
  position: relative;
  padding: var(--section-padding) var(--container-padding);
  background: linear-gradient(180deg, #ffffff 0%, #f5f9ff 40%, #eef5ff 70%, #f5fbf7 100%);
  text-align: center;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.business .deco-big-num {
  top: 30px;
  right: var(--container-padding);
}

.business-header {
  margin-bottom: 40px;
  position: relative;
  z-index: 2;
}

.business-header-desc {
  font-size: 14px;
  color: var(--text-muted);
  max-width: 600px;
  margin: 16px auto 0;
  line-height: 1.8;
}

.business-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
  position: relative;
  z-index: 2;
}

.business-card {
  background: #fff;
  border-radius: 12px;
  padding: 24px 16px;
  text-align: center;
  transition: all 0.3s;
  border: 1px solid var(--border-light);
  cursor: pointer;
}

.business-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(37, 99, 235, 0.12);
  border-color: var(--primary-light);
}

.business-icon {
  width: 48px;
  height: 48px;
  margin: 0 auto 14px;
  background: linear-gradient(135deg, var(--primary-bg), #dbeafe);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
}

.business-name {
  font-size: 14px;
  font-weight: 700;
  color: var(--text-title);
  margin-bottom: 8px;
  line-height: 1.4;
}

.business-desc {
  font-size: 12px;
  color: var(--text-muted);
  line-height: 1.5;
}

/* ============================================================
   11. 悬浮工具栏
   ============================================================ */
.float-toolbar {
  position: fixed;
  right: 16px;
  bottom: 30px;
  z-index: 90;
  display: flex;
  flex-direction: column;
  gap: 1px;
  background: rgba(255, 255, 255, 0.6);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-radius: 10px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
  overflow: hidden;
  transition: all 0.3s;
}

.float-toolbar:hover {
  background: rgba(255, 255, 255, 0.92);
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.12);
}

.float-btn {
  width: 48px;
  padding: 9px 6px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  cursor: pointer;
  color: #64748b;
  transition: all 0.2s;
  position: relative;
  background: transparent;
  border: none;
}

.float-btn:hover {
  background: rgba(37, 99, 235, 0.1);
  color: var(--primary);
}

.float-btn svg {
  flex-shrink: 0;
  width: 16px;
  height: 16px;
}

.float-btn-text {
  font-size: 10px;
  font-weight: 600;
  line-height: 1;
}

/* 弹窗 */
.float-popup {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 200;
  display: none;
  align-items: center;
  justify-content: center;
}

.float-popup.active {
  display: flex;
}

.float-popup-mask {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
}

.float-popup-box {
  position: relative;
  background: #fff;
  border-radius: 16px;
  padding: 32px;
  width: 340px;
  max-width: 90vw;
  text-align: center;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.2);
  animation: popupIn 0.3s ease;
}

@keyframes popupIn {
  from {
    opacity: 0;
    transform: translateY(20px) scale(0.95);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.float-popup-close {
  position: absolute;
  top: 12px;
  right: 16px;
  font-size: 24px;
  color: #94a3b8;
  cursor: pointer;
  line-height: 1;
  transition: color 0.2s;
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
}

.float-popup-close:hover {
  color: var(--primary);
  background: var(--primary-bg);
}

.float-popup-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-title);
  margin-bottom: 24px;
}

/* 微信二维码 */
.wechat-qrcode {
  margin-bottom: 16px;
}

.qrcode-placeholder {
  width: 188px; margin: 0 auto;
  display: flex; flex-direction: column; align-items: center; gap:10px;
}
.wechat-qr-img {
  width:188px; height:188px; display:block; border-radius:10px;
  border:1px solid #e2e8f0; background:#fff;
}
.qrcode-placeholder p { font-size:13px; color:#475569; margin:0; }

.wechat-id {
  font-size: 14px;
  color: var(--text-body);
  margin-bottom: 8px;
}

.wechat-id strong {
  color: var(--primary);
  font-weight: 700;
}

/* 电话弹窗 */
.phone-display {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin-bottom: 24px;
  padding: 20px;
  background: linear-gradient(135deg, var(--primary-bg), #dbeafe);
  border-radius: 12px;
  color: var(--primary);
}

.phone-number {
  font-size: 24px;
  font-weight: 800;
  color: var(--primary-dark);
  letter-spacing: 1px;
}

.popup-call-btn {
  display: inline-block;
  padding: 12px 32px;
  font-size: 15px;
  font-weight: 600;
  border-radius: 25px;
  text-decoration: none;
  margin-bottom: 16px;
}

.popup-tip {
  font-size: 12px;
  color: var(--text-muted);
  margin: 0;
}

/* 响应式：小屏隐藏悬浮工具栏 */
@media (max-width: 768px) {
  .float-toolbar {
    display: none;
  }
}


/* ============================================================
   新增图片展示区域样式
   ============================================================ */

/* 通用图片徽章 */
.visual-badge {
  position: absolute;
  bottom: 16px;
  left: 16px;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(8px);
  border-radius: 12px;
  padding: 10px 16px;
  display: flex;
  flex-direction: column;
  gap: 2px;
  box-shadow: 0 4px 16px rgba(37, 99, 235, 0.15);
}

.visual-badge-num {
  font-size: 22px;
  font-weight: 800;
  color: var(--primary);
  line-height: 1;
}

.visual-badge-text {
  font-size: 11px;
  color: var(--text-muted);
}

/* ===== 第三屏 services ===== */
.services-body {
  display: flex;
  gap: 30px;
  align-items: center;
  flex: 1;
  position: relative;
  z-index: 2;
}

.services-visual {
  flex: 1;
  position: relative;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 10px 30px rgba(37, 99, 235, 0.15);
}

.services-visual img {
  width: 100%;
  height: 380px;
  object-fit: cover;
  display: block;
}

.services .services-grid {
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

/* ===== 第五屏 advantages ===== */
.advantages-body {
  display: flex;
  gap: 24px;
  align-items: center;
  flex: 1;
  position: relative;
  z-index: 2;
}

.advantages .advantages-grid {
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
}

.advantages-visual {
  flex: 1;
  position: relative;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 10px 30px rgba(37, 99, 235, 0.15);
}

.advantages-visual img {
  width: 100%;
  height: 420px;
  object-fit: cover;
  display: block;
}

/* ===== 第六屏 cases ===== */
.cases-visual {
  margin-top: 18px;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 6px 20px rgba(37, 99, 235, 0.12);
}

.cases-visual img {
  width: 100%;
  height: 150px;
  object-fit: cover;
  display: block;
}

/* ===== 各板块浅色背景 ===== */
.hero {
  background: linear-gradient(135deg, #f0f7ff 0%, #ffffff 50%, #f0faf4 100%);
}

.about {
  background: linear-gradient(135deg, #ffffff 0%, #f5f9ff 50%, #f5fbf7 100%);
}

.services {
  background: linear-gradient(135deg, #f5f9ff 0%, #ffffff 40%, #eef5ff 80%, #f5fbf7 100%);
}

.fields {
  background: linear-gradient(135deg, #ffffff 0%, #f0f7ff 50%, #f5fbf7 100%);
}

.advantages {
  background: linear-gradient(135deg, #f0f7ff 0%, #f5f9ff 50%, #ffffff 100%);
}

.cases {
  background: linear-gradient(135deg, #ffffff 0%, #f5f9ff 50%, #f0faf4 100%);
}

.contact {
  background: linear-gradient(135deg, #d6e8fb 0%, #e0ecfb 50%, #d9f1e5 100%);
}


/* ===== 排版全面优化：卡片统一样式 ===== */
.services-header,
.advantages-header {
  text-align: center;
}

/* 服务卡片优化 */
.service-card {
  background: #fff;
  border-radius: 14px;
  padding: 28px 24px;
  border: 1px solid #e8f0fe;
  transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, #2563eb, #10b981);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.35s;
}

.service-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 30px rgba(37, 99, 235, 0.14);
  border-color: #bfdbfe;
}

.service-card:hover::before {
  transform: scaleX(1);
}

/* 优势卡片优化 */
.adv-card {
  border-radius: 14px;
  transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

.adv-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 30px rgba(37, 99, 235, 0.14);
}

/* 业务领域卡片优化 */
.field-card {
  border-radius: 12px;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.field-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 10px 24px rgba(37, 99, 235, 0.13);
}

/* 第三屏上下布局垂直居中 */
.services {
  justify-content: center;
}

/* 第五屏上下布局垂直居中 */
.advantages {
  justify-content: center;
}

.advantages-header {
  margin-bottom: 32px;
}

.adv-footer {
  margin-top: 28px;
}


/* ===== 关键修复：flex改为真正的grid网格布局 ===== */
.services-grid {
  display: grid !important;
  grid-template-columns: repeat(3, 1fr) !important;
  gap: 22px !important;
}

.services-grid .service-card {
  flex: none !important;
  max-width: none !important;
}

.advantages-grid {
  display: grid !important;
  grid-template-columns: repeat(5, 1fr) !important;
  gap: 16px !important;
}

.advantages-grid .adv-card {
  flex: none !important;
  max-width: none !important;
}


/* ============================================================
   全新图文布局（nx- 系列）— 背景加深
   ============================================================ */
.nx-kicker {
  font-size: 12px; letter-spacing: 3px; color: #2563eb;
  font-weight: 700; margin-bottom: 14px;
}
.nx-kicker.center { text-align: center; }

.nx-sec-head { text-align: center; margin-bottom: 30px; position: relative; z-index: 2; }
.nx-sec-title { font-size: 32px; color: #0f172a; font-weight: 800; }
.nx-sec-sub { font-size: 14px; color: #64748b; margin-top: 12px; }

/* 浮动卡片 / 标签通用 */
.nx-float-num { display:block; font-size: 22px; font-weight: 800; color: #1d4ed8; line-height:1; }
.nx-float-label { display:block; font-size: 11px; color: #64748b; margin-top: 4px; }

/* ===== 第1屏 Hero ===== */
.nx-hero {
  background: linear-gradient(125deg, #dbeafe 0%, #eaf2ff 35%, #f0f6ff 65%, #d9f2e6 100%);
  display: flex; flex-direction: column; justify-content: center;
  padding: 84px 60px 20px;
}
.nx-hero-inner { display: flex; align-items: center; gap: 50px; flex: 1; }
.nx-hero-left { flex: 1.05; }
.nx-hero-title { font-size: 38px; line-height: 1.15; color: #0f172a; font-weight: 800; }
.nx-hero-title span { color: #2563eb; }
.nx-hero-motto { font-size: 18px; color: #1d4ed8; font-weight: 700; margin: 20px 0 14px; }
.nx-hero-desc { font-size: 15px; line-height: 1.9; color: #475569; max-width: 520px; margin-top: 48px; font-weight: 600}
.nx-hero-btns { display: flex; gap: 16px; margin-top: 28px; }
.nx-hero-right { flex: 1; position: relative; }
.nx-hero-right img { width: 100%; height: 460px; object-fit: cover; border-radius: 20px; box-shadow: 0 20px 50px rgba(29,78,216,0.25); }
.nx-float-card {
  position: absolute; background: rgba(255,255,255,0.95); backdrop-filter: blur(8px);
  border-radius: 14px; padding: 14px 18px; box-shadow: 0 10px 30px rgba(29,78,216,0.2);
}
.fc-a { left: 24px; top: 18px; }
.fc-b { right: 24px; top: 18px; }
.nx-hero-bar {
  display: grid; grid-template-columns: repeat(6,1fr); gap: 12px;
  background: rgba(255,255,255,0.7); border-radius: 16px; padding: 18px 24px;
}
.nx-bar-item { display:flex; flex-direction:column; align-items:center; gap:4px; border-right:1px solid #dbeafe; }
.nx-bar-item:last-child { border-right:none; }
.nx-bar-item strong { font-size: 22px; color: #1d4ed8; font-weight: 800; }
.nx-bar-item span { font-size: 12px; color: #64748b; }

/* ===== 第3屏 Services ===== */
.nx-services {
  background: linear-gradient(135deg, #ffffff 0%, #f0f6ff 55%, #f5fbf7 100%);
  display:flex; flex-direction:column; justify-content:center; padding: 84px 60px 40px;
}
.nx-services-body { display:flex; gap: 40px; align-items:center; flex:1; }
.nx-services-visual { flex: 1; position: relative; }
.nx-services-visual img { width:100%; height:400px; object-fit:cover; border-radius:18px; box-shadow:0 16px 40px rgba(29,78,216,0.22); }
.nx-visual-tag { position:absolute; left:20px; bottom:20px; background:rgba(255,255,255,0.95); border-radius:14px; padding:12px 18px; box-shadow:0 8px 24px rgba(29,78,216,0.18); }
.nx-services-list { flex: 1.15; display:flex; flex-direction:column; gap:10px; justify-content:center; }
.nx-svc-row { display:flex; align-items:center; gap:18px; background:rgba(255,255,255,0.85); border-radius:14px; padding:10px 18px; transition:all .3s; border:1px solid #dbeafe; }
.nx-svc-row:hover { transform:translateX(6px); box-shadow:0 8px 22px rgba(37,99,235,0.14); }
.nx-svc-no { font-size:22px; font-weight:800; color:#93c5fd; }
.nx-svc-txt h4 { font-size:16px; color:#0f172a; font-weight:700; }
.nx-svc-txt p { font-size:13px; color:#64748b; margin-top:3px; }

/* ===== 第4屏 Fields：5列2行 ===== */
.nx-fields {
  background: linear-gradient(135deg, #ffffff 0%, #f0f6ff 55%, #f5fbf7 100%);
  display:flex; flex-direction:column; justify-content:center; padding: 84px 60px 50px;
}
.nx-biz-grid { display:grid; grid-template-columns:repeat(4,1fr); gap:16px; flex:1; align-content:center; }
.nx-biz-card {
  background: linear-gradient(160deg,#ffffff,#f3f8ff); border-radius:14px; padding:22px 16px;
  border:1px solid #cfe0f7; transition:all .3s; position:relative; overflow:hidden;
}
.nx-biz-card:hover { transform:translateY(-6px); box-shadow:0 14px 30px rgba(29,78,216,0.18); border-color:#93c5fd; }
.nx-biz-no { font-size:13px; font-weight:800; color:#93c5fd; }
.nx-biz-card h4 { font-size:14px; color:#0f172a; font-weight:700; margin:10px 0 8px; line-height:1.4; }
.nx-biz-card p { font-size:12px; color:#64748b; line-height:1.5; }

/* ===== 第5屏 Advantages：左列表 右图 ===== */
.nx-adv {
  background: linear-gradient(135deg, #d9e9fb 0%, #e6f0fd 45%, #dcf0e6 100%);
  display:flex; flex-direction:column; justify-content:center; padding: 84px 60px 46px;
}
.nx-adv-body { display:flex; gap:40px; align-items:center; flex:1; }
.nx-adv-list { flex:1.15; display:flex; flex-direction:column; gap:12px; }
.nx-adv-row { display:flex; align-items:center; gap:18px; background:rgba(255,255,255,0.88); border-radius:14px; padding:16px 22px; border:1px solid #dbeafe; transition:all .3s; }
.nx-adv-row:hover { transform:translateX(-6px); box-shadow:0 8px 22px rgba(37,99,235,0.14); }
.nx-adv-no { width:44px; height:44px; flex:none; display:flex; align-items:center; justify-content:center; background:linear-gradient(135deg,#2563eb,#1d4ed8); color:#fff; border-radius:12px; font-weight:800; font-size:15px; }
.nx-adv-txt h4 { font-size:16px; color:#0f172a; font-weight:700; }
.nx-adv-txt p { font-size:13px; color:#64748b; margin-top:3px; }
.nx-adv-visual { flex:1; position:relative; }
.nx-adv-visual img { width:100%; height:440px; object-fit:cover; border-radius:18px; box-shadow:0 16px 40px rgba(29,78,216,0.22); }

/* ===== 第6屏 Cases：3大图文卡片 ===== */
.nx-cases {
  background: linear-gradient(135deg, #ffffff 0%, #f0f6ff 55%, #f5fbf7 100%);
  display:flex; flex-direction:column; justify-content:center; padding: 84px 60px 30px;
}
.nx-case-grid { display:grid; grid-template-columns:repeat(3,1fr); gap:24px; }
.nx-case-card { background:#fff; border-radius:18px; overflow:hidden; border:1px solid #cfe0f7; transition:all .35s; text-decoration:none; color:inherit; display:block; }
.nx-case-card:hover { transform:translateY(-8px); box-shadow:0 20px 44px rgba(29,78,216,0.2); }
.nx-case-img img { width:100%; height:200px; object-fit:cover; display:block; }
.nx-case-body { padding:22px 24px; }
.nx-case-tag { display:inline-block; font-size:11px; font-weight:700; color:#1d4ed8; background:#dbeafe; padding:4px 12px; border-radius:20px; }
.nx-case-body h4 { font-size:18px; color:#0f172a; font-weight:700; margin:12px 0 8px; }
.nx-case-body p { font-size:13px; color:#64748b; line-height:1.7; }
.nx-case-stat { display:grid; grid-template-columns:repeat(4,1fr); gap:16px; margin-top:26px; background:rgba(255,255,255,0.72); border-radius:16px; padding:18px; }
.nx-case-stat div { display:flex; flex-direction:column; align-items:center; gap:4px; border-right:1px solid #dbeafe; }
.nx-case-stat div:last-child { border-right:none; }
.nx-case-stat strong { font-size:24px; color:#1d4ed8; font-weight:800; }
.nx-case-stat span { font-size:12px; color:#64748b; }


/* ===== 全局背景整体加深（id选择器强制覆盖，保持深浅交替） ===== */
#hero { background: linear-gradient(135deg, #b9d3f3 0%, #c9dff6 50%, #c4e8d4 100%) !important; }
#about { background: linear-gradient(135deg, #e3edfa 0%, #eaf2fd 50%, #e4f3ea 100%) !important; }
#fields { background: linear-gradient(135deg, #b9d3f3 0%, #c9dff6 50%, #c4e8d4 100%) !important; }
#services { background: linear-gradient(135deg, #e3edfa 0%, #eaf2fd 50%, #e4f3ea 100%) !important; }
#advantages { background: linear-gradient(135deg, #b9d3f3 0%, #c9dff6 50%, #c4e8d4 100%) !important; }
#cases { background: linear-gradient(135deg, #e3edfa 0%, #eaf2fd 50%, #e4f3ea 100%) !important; }
#contact { background: linear-gradient(135deg, #b9d3f3 0%, #c9dff6 50%, #c4e8d4 100%) !important; }


/* ===== 第7屏 联系我们（1:1还原参考图） ===== */
.c7 {
  position: relative;
  background: #f4f8ff;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  overflow: hidden;
}

/* 背景实景图 */
.c7-bg { position:absolute; inset:0; z-index:0; }
.c7-bg img {
  width:100%; height:100%; object-fit:cover;
  filter: saturate(0.55) brightness(1.12) hue-rotate(2deg);
}
/* 白色遮罩：左实右虚、中间过曝，压住底图水印 */
.c7-bg-mask {
  position:absolute; inset:0; z-index:1; pointer-events:none;
  background:
    linear-gradient(180deg, rgba(255,255,255,0.62) 0%, rgba(255,255,255,0.45) 40%, rgba(255,255,255,0.72) 100%),
    linear-gradient(90deg, rgba(255,255,255,0.45) 0%, rgba(255,255,255,0.85) 48%, rgba(255,255,255,0.6) 100%);
}

/* 左上两个圆形 */
.c7-circle { position:absolute; border-radius:50%; z-index:2; }
.c7-circle-big {
  width:190px; height:190px; left:-70px; top:-70px;
  background: linear-gradient(135deg,#3b82f6,#2563eb);
}
.c7-circle-small {
  width:92px; height:92px; left:165px; top:34px;
  background: radial-gradient(circle at 35% 30%,#bfdbfe,#93c5fd);
}

/* 右上 07 大数字 */
.c7-num {
  position:absolute; top:18px; right:130px; z-index:2;
  font-size:230px; font-weight:800; line-height:1;
  color: rgba(147,197,253,0.32);
  -webkit-text-stroke: 2px rgba(96,165,250,0.45);
  pointer-events:none;
}

/* 右侧蓝色渐变 + 水平线条装饰 */
.c7-right-deco {
  position:absolute; top:0; right:0; bottom:0; width:34%; z-index:2; pointer-events:none;
  background: linear-gradient(120deg, rgba(255,255,255,0) 25%, rgba(37,99,235,0.10) 65%, rgba(37,99,235,0.20) 100%);
}
.c7-right-deco::after {
  content:""; position:absolute; right:0; bottom:0; width:300px; height:230px;
  background: repeating-linear-gradient(0deg, rgba(37,99,235,0.20) 0 1.5px, transparent 1.5px 15px);
  -webkit-mask: linear-gradient(180deg,transparent,#000);
          mask: linear-gradient(180deg,transparent,#000);
  border-radius: 50% 0 0 0;
}

/* 内容 */
.c7-content {
  position:relative; z-index:5; width:100%; max-width:1360px;
  display:flex; flex-direction:column; align-items:center;
  padding: 0 60px;
}
.c7-pill {
  display:inline-block; padding:9px 34px; border-radius:30px;
  border:1.5px solid #93c5fd;
  font-size:13px; letter-spacing:3px; font-weight:600; margin-bottom:18px;
  color:#2563eb; border-color:#93c5fd; background:rgba(255,255,255,0.6);
}
.c7-title { font-size:32px; color:#0f172a; font-weight:800; letter-spacing:1px; }
.c7-sub { font-size:14px; color:#64748b; margin-top:10px; font-weight:500; }

.c7-actions { display:flex; flex-direction:column; align-items:center; gap:14px; margin:24px 0 22px; }
.c7-link { font-size:16px; color:#0f172a; font-weight:700; cursor:pointer; }
.c7-btn {
  background:linear-gradient(135deg,#2563eb,#1d4ed8); color:#fff;
  border:none; border-radius:30px; padding:13px 40px;
  font-size:15px; font-weight:700; cursor:pointer;
  box-shadow:0 10px 26px rgba(37,99,235,0.32);
}
.c7-btn:hover { transform:translateY(-2px); }

/* 三张联系卡 */
.c7-cards { display:grid; grid-template-columns:repeat(3,1fr); gap:26px; width:100%; }
.c7-card {
  background:rgba(255,255,255,0.96); border-radius:16px;
  padding:22px 26px; text-align:left;
  box-shadow:0 12px 34px rgba(37,99,235,0.12);
  border:1px solid #e6eefc;
}
.c7-card-label { font-size:16px; color:#0f172a; font-weight:700; margin-bottom:8px; }
.c7-card-value { font-size:13px; color:#64748b; line-height:1.5; }

/* 底部版权 */
.c7-footer {
  position:absolute; bottom:20px; left:0; right:0; z-index:5;
  text-align:center; font-size:14px; color:#64748b;
}


/* ===== 第4屏 恢复左右布局（左文字 + 右侧3x3卡片） ===== */
.fl4 {
  position:relative; overflow:hidden;
  background: linear-gradient(135deg,#d9e9fb 0%,#e6f0fd 45%,#dcf0e6 100%);
  display:flex; align-items:center;
  padding: 84px 60px 50px;
}
/* 背景大数字 04 */
.fl4-big-num {
  position:absolute; left:26%; top:50%; transform:translateY(-55%);
  font-size:360px; font-weight:800; line-height:1;
  color: rgba(147,197,253,0.22); z-index:0; pointer-events:none;
}

/* 左侧 */
.fl4-left { flex:0.82; position:relative; z-index:2; padding-right:40px; }
.fl4-kicker { font-size:14px; letter-spacing:4px; color:#94a3b8; font-weight:600; margin-bottom:18px; }
.fl4-title { font-size:36px; color:#0f172a; font-weight:800; line-height:1.2; }
.fl4-title-blue { font-size:36px; color:#2563eb; font-weight:800; line-height:1.2; margin-top:4px; }
.fl4-desc { font-size:17px; color:#1e3a8a; font-weight:700; line-height:2; margin:26px 0 24px; max-width:480px; }

.fl4-tags { display:flex; flex-wrap:wrap; gap:10px; max-width:460px; }
.fl4-tag {
  font-size:13px; font-weight:600; padding:7px 16px; border-radius:20px;
  border:1px solid #bfdbfe; color:#2563eb; background:rgba(255,255,255,0.7);
}
.fl4-tag:nth-child(odd) { background:linear-gradient(135deg,#2563eb,#1d4ed8); color:#fff; border-color:transparent; }

.fl4-bottom { display:flex; align-items:baseline; gap:12px; margin-top:28px; }
.fl4-bottom strong { font-size:56px; color:#2563eb; font-weight:800; line-height:1; }
.fl4-bottom span { font-size:14px; color:#64748b; }

/* 右侧 3x3 卡片网格 */
.fl4-right { flex:1.35; position:relative; z-index:2; }
.fl4-grid { display:grid; gap:14px; }
.fl4-grid-a { grid-template-columns:repeat(3,1fr); }
.fl4-grid-b { grid-template-columns:repeat(3,1fr); margin-top:14px; }
.fl4-card {
  background:#fff; border:1px solid #e2eaf6; border-radius:14px;
  padding:16px 16px; transition:all .3s;
  text-decoration:none; color:inherit; display:block;
}
.fl4-card:hover { transform:translateY(-5px); box-shadow:0 14px 30px rgba(29,78,216,0.14); border-color:#93c5fd; }
.fl4-card-icon {
  display:flex; align-items:center; justify-content:center;
  width:44px; height:44px; border-radius:10px; background:#ffffff; color:#2563eb; margin-bottom:10px;
}
.fl4-card-icon img { width:100%; height:100%; object-fit:contain; display:block; }
.fl4-card h4 { font-size:15px; color:#0f172a; font-weight:700; }
.fl4-card p { font-size:12px; color:#94a3b8; margin-top:6px; line-height:1.5; }


/* ===== 第2屏 公司大楼新样式（异形圆角 + 顶部logo + 底部卡片） ===== */
.about-photo { position:relative; width:100%; }
.about-photo-img {
  width:100%; height:480px; object-fit:cover; display:block;
  border-radius: 0 110px 0 0;
}
/* 顶部公司 logo + 名称 */
.about-photo-brand {
  position:absolute; top:22px; left:50%; transform:translateX(-50%);
  background:rgba(255,255,255,0.94); border-radius:30px; padding:10px 28px;
  box-shadow:0 8px 22px rgba(29,78,216,0.16); z-index:3;
}
.about-photo-logo { height:34px; display:block; }
/* 底部白色卡片 */
.about-photo-card {
  position:absolute; bottom:26px; left:50%; transform:translateX(-50%);
  display:flex; flex-direction:column; align-items:center; gap:12px;
  background:#fff; border-radius:20px; padding:20px 44px; width:72%;
  box-shadow:0 14px 36px rgba(29,78,216,0.2); z-index:3;
}
.about-photo-card-icon {
  display:flex; align-items:center; justify-content:center;
  width:40px; height:40px; border-radius:12px;
  background:linear-gradient(135deg,#2563eb,#1d4ed8); color:#fff;
}
.about-photo-card strong { font-size:24px; color:#1d4ed8; font-weight:800; white-space:nowrap; }


/* ===== 第7屏 联系我们（协调版：左信息 + 右团队图） ===== */
.nx-contact {
  position:relative; overflow:hidden;
  background: linear-gradient(135deg,#d9e9fb 0%,#e6f0fd 45%,#dcf0e6 100%);
  display:flex; flex-direction:column; justify-content:center;
  padding: 84px 60px 0;
}
.nx-contact-body { display:flex; gap:44px; align-items:center; flex:1; position:relative; z-index:2; }

/* 左侧联系信息 */
.nx-contact-info { flex:1.1; display:flex; flex-direction:column; gap:14px; }
.nxc-row {
  display:flex; align-items:center; gap:18px;
  background:rgba(255,255,255,0.9); border-radius:14px;
  padding:16px 22px; border:1px solid #dbeafe; transition:all .3s;
}
.nxc-row:hover { transform:translateX(6px); box-shadow:0 8px 22px rgba(37,99,235,0.14); }
.nxc-icon {
  width:46px; height:46px; flex:none; display:flex; align-items:center; justify-content:center;
  background:linear-gradient(135deg,#2563eb,#1d4ed8); color:#fff; border-radius:12px;
}
.nxc-txt h4 { font-size:16px; color:#0f172a; font-weight:700; }
.nxc-txt p { font-size:13px; color:#64748b; margin-top:3px; }
.nxc-btns { display:flex; gap:16px; margin-top:10px; }

/* 右侧团队图 */
.nx-contact-visual { flex:1; position:relative; }
.nx-contact-visual img {
  width:100%; height:450px; object-fit:cover; border-radius:18px;
  box-shadow:0 16px 40px rgba(29,78,216,0.22);
}

/* 底部版权（带底色） */
.nxc-footer {
  position:absolute; bottom:0; left:0; right:0; z-index:3;
  text-align:center; font-size:13px; color:#334155;
  background:linear-gradient(90deg,rgba(191,219,254,0.55),rgba(219,234,254,0.75),rgba(209,250,229,0.55));
  padding:12px 0; border-top:1px solid #dbeafe;
}


/* ===== 第7屏 无图片版：三张信息卡片居中 ===== */
.nxc-cards3 {
  display:grid; grid-template-columns:repeat(3,1fr); gap:38px;
  width:100%; max-width:1280px; position:relative; z-index:2; margin:6px auto 0;
}
.nxc-c3 {
  background:linear-gradient(160deg,#ffffff,#f3f8ff); border:1px solid #dbeafe; border-radius:16px;
  padding:18px 22px; display:flex; flex-direction:column; align-items:flex-start; text-align:left;
  box-shadow:0 12px 30px rgba(29,78,216,0.10); transition:all .3s;
}
.nxc-c3:hover { transform:translateY(-7px); box-shadow:0 22px 46px rgba(29,78,216,0.2); }
.nxc-c3-icon {
  width:38px; height:38px; border-radius:11px; margin-bottom:10px;
  display:flex; align-items:center; justify-content:center;
  background:linear-gradient(135deg,#2563eb,#1d4ed8); color:#fff;
  box-shadow:0 10px 22px rgba(37,99,235,0.3);
}
.nxc-c3 h4 { font-size:16px; color:#0f172a; font-weight:700; }
.nxc-c3 p { font-size:13px; color:#64748b; line-height:1.6; margin-top:4px; }

.nxc-btns-center { display:flex; gap:18px; justify-content:center; margin-top:40px; position:relative; z-index:2; }


/* ===== 第5屏 五大核心优势（全宽5列卡片，区别于第3屏左右布局） ===== */
.ad5 {
  position:relative; overflow:hidden;
  background: linear-gradient(135deg,#d9e9fb 0%,#e6f0fd 45%,#dcf0e6 100%);
  display:flex; flex-direction:column; justify-content:center;
  padding: 84px 60px 50px;
}
.ad5-grid { display:grid; grid-template-columns:repeat(5,1fr); gap:20px; position:relative; z-index:2; }
.ad5-card {
  background:linear-gradient(160deg,#ffffff,#f3f8ff); border:1px solid #dbeafe; border-radius:16px;
  padding:24px 22px; display:flex; flex-direction:column; transition:all .3s;
}
.ad5-card:hover { transform:translateY(-8px); box-shadow:0 18px 38px rgba(29,78,216,0.18); border-color:#93c5fd; }
.ad5-top { display:flex; justify-content:space-between; align-items:center; margin-bottom:16px; }
.ad5-ico {
  width:54px; height:54px; border-radius:13px; display:flex; align-items:center; justify-content:center;
  background:linear-gradient(135deg,#2563eb,#1d4ed8); color:#fff; box-shadow:0 10px 22px rgba(37,99,235,0.28);
}
.ad5-no { font-size:24px; font-weight:800; color:#bfdbfe; line-height:1; }
.ad5-card h4 { font-size:16px; color:#0f172a; font-weight:700; margin:0 0 10px; }
.ad5-card p { font-size:13px; color:#64748b; line-height:1.7; margin:0 0 14px; }
.ad5-tag {
  align-self:flex-start; font-size:11px; font-weight:600; color:#1d4ed8;
  background:#dbeafe; padding:4px 11px; border-radius:20px;
}


/* ===== 第四屏右侧 2列3行网格（替代纵向横条列表） ===== */
.nx-services-grid2 { flex:1.15; display:grid; grid-template-columns:repeat(2,1fr); gap:12px; align-content:center; }
.nx-svc-card2 {
  background:linear-gradient(160deg,#ffffff,#f3f8ff); border:1px solid #dbeafe; border-radius:14px;
  padding:15px 16px; display:flex; flex-direction:column; transition:all .3s;
}
.nx-svc-card2:hover { transform:translateY(-5px); box-shadow:0 12px 26px rgba(37,99,235,0.16); border-color:#93c5fd; }
.nx-svc-no2 { font-size:18px; font-weight:800; color:#93c5fd; line-height:1; }
.nx-svc-card2 h4 { font-size:15px; color:#0f172a; font-weight:700; margin:9px 0 5px; }
.nx-svc-card2 p { font-size:12px; color:#64748b; line-height:1.55; }

/* 主导航与子菜单间隙的透明桥接，避免鼠标移动时菜单收起 */
.nav-item-has-sub::before {
  content:''; position:absolute; top:100%; left:0; width:100%; height:12px; z-index:999;
}

/* 下拉子菜单序号 */
.nav-submenu { counter-reset: sn; }
.nav-submenu li a::before {
  counter-increment: sn;
  content: counter(sn) ". ";
  color: #2563eb; font-weight: 700; margin-right: 6px;
}

/* ===================== 手机端响应式（≤900px，不影响桌面） ===================== */
@media (max-width: 900px) {
  html, body { overflow-x: hidden; }
  .fp-wrapper { height: auto !important; }
  .fp-section { height: auto !important; min-height: auto !important; overflow: visible !important; padding: 64px 18px !important; }

  /* 顶部导航 */
  .navbar { padding: 0 14px; height: 56px; justify-content: space-between; }
  .nav-logo-img { height: 30px; }
  .nav-right .nav-search { display: none; }
  .nav-right .btn-primary { padding: 8px 14px; font-size: 13px; white-space: nowrap; }
  .nav-toggle { display: flex !important; }
  .nav-menu {
    position: fixed; top: 56px; left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 0;
    background: rgba(255,255,255,0.98); backdrop-filter: blur(12px);
    padding: 8px 22px 24px;
    transform: translateY(-130%); transition: transform .3s ease;
    max-height: calc(100vh - 56px); overflow-y: auto;
    box-shadow: 0 14px 30px rgba(0,0,0,.10);
  }
  .nav-menu.open { transform: translateY(0); }
  .nav-menu > li { flex-shrink: 0; }
  .nav-menu a { padding: 13px 0; font-size: 16px; border-bottom: 1px solid #eef2f7; }
  .nav-submenu {
    display: block !important; position: static !important; opacity: 1 !important; visibility: visible !important;
    transform: none !important; box-shadow: none !important; background: transparent !important;
    padding: 0 0 0 18px !important; min-width: 0 !important; margin: 0; float: none; z-index: auto;
  }
  .nav-submenu li a { font-size: 14px; padding: 9px 0; border-bottom: 1px dashed #eef2f7; }

  /* Hero 首屏 */
  .nx-hero-inner { display: flex !important; flex-direction: column !important; gap: 24px; }
  .nx-hero-left, .nx-hero-right { width: 100% !important; padding: 0 !important; }
  .nx-hero-title { font-size: 34px !important; line-height: 1.25; }
  .nx-hero-desc { font-size: 14px !important; }
  .nx-hero-right img { width: 100% !important; height: auto !important; border-radius: 14px; }
  .nx-hero-bar { display: grid; grid-template-columns: repeat(3,1fr); gap: 12px; }
  .nx-bar-item { flex: 0 0 auto; }
  .nx-bar-item strong { font-size: 22px !important; }

  /* 关于聚信 */
  .about { display: flex !important; flex-direction: column !important; gap: 24px; }
  .about-left, .about-right { width: 100% !important; padding: 0 !important; }
  .about-photo-img { width: 100% !important; }
  .about-stats { grid-template-columns: repeat(3, 1fr) !important; gap: 10px; }
  .about-stat-num { font-size: 26px !important; }
  .about-certs { flex-wrap: wrap; gap: 8px; }

  /* 十大业务 */
  .fl4 { display: flex !important; flex-direction: column !important; gap: 20px; }
  .fl4-left, .fl4-right { width: 100% !important; flex: none !important; }
  .fl4-grid-a { grid-template-columns: repeat(2, 1fr) !important; }
  .fl4-grid-b { grid-template-columns: repeat(2, 1fr) !important; }
  .fl4-card { padding: 12px; }
  .fl4-card h4 { font-size: 14px; }
  .fl4-card p { font-size: 12px; }

  /* 服务体系 */
  .nx-services-body { display: flex !important; flex-direction: column !important; gap: 20px; }
  .nx-services-visual, .nx-services-grid2 { width: 100% !important; flex: none !important; }
  .nx-services-grid2 { display: grid !important; grid-template-columns: repeat(2, 1fr) !important; gap: 12px; }
  .nx-svc-card2 { padding: 14px; }

  /* 核心优势 */
  .ad5-grid { display: grid !important; grid-template-columns: repeat(2, 1fr) !important; gap: 12px; }
  .ad5-card { padding: 14px; }

  /* 成功案例 */
  .nx-case-grid { display: grid !important; grid-template-columns: 1fr !important; gap: 16px; }
  .nx-case-stat { flex-wrap: wrap; gap: 14px; }
  .nx-case-stat > div { flex: 0 0 46%; }
  .nx-case-stat strong { font-size: 24px !important; }

  /* 联系我们 */
  .nxc-cards3 { display: grid !important; grid-template-columns: 1fr !important; gap: 14px; }

  /* 通用标题缩小 */
  .section-title, .nx-sec-title { font-size: 26px !important; }
  .fl4-title, .fl4-title-blue { font-size: 24px !important; }
  .section-desc, .nx-sec-sub { font-size: 14px !important; }

  /* 侧边点 & 悬浮按钮 */
  .fp-dots { display: none !important; }
  .float-toolbar { right: 10px !important; bottom: 70px !important; }
  .float-btn { width: 44px !important; height: 44px !important; }
  .float-btn-text { display: none; }
}

/* 汉堡菜单按钮（桌面隐藏，手机显示） */
.nav-toggle { display: none; flex-direction: column; justify-content: center; gap: 5px; background: none; border: none; cursor: pointer; padding: 6px; }
.nav-toggle span { display: block; width: 22px; height: 2px; background: #334155; border-radius: 2px; transition: all .3s; }
.nav-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* 关于聚信 - 公司介绍四段 */
.about-intro p { font-size: 13.5px; line-height: 1.85; color: #475569; margin: 0 0 12px; }
.about-intro p:last-child { margin-bottom: 0; }

/* 关于屏排版优化：留白与行宽 */
.about-right { padding-right: 56px; }
.about-right .section-label { margin-bottom: 14px; }
.about-right .section-title { margin-bottom: 26px; }
.about-intro p { max-width: 660px; margin-bottom: 16px; }
.about-intro p:last-of-type { margin-bottom: 0; }
.about-right .btn-primary { margin-top: 26px; }

/* 核心优势卡片图标：使用图片 */
.ad5-ico { background: transparent !important; padding: 0 !important; overflow: hidden; }
.ad5-ico img { width: 100%; height: 100%; object-fit: contain; display: block; }

.ad5-ico { color:#2563eb; }
.ad5-ico svg { width:88%; height:88%; display:block; }


/* ========== 搜索弹窗 ========== */
.search-popup { position: fixed; top: 0; left: 0; width: 100%; height: 100%; z-index: 9999; display: none; }
.search-popup.active { display: block; }
.search-popup-mask { position: absolute; top: 0; left: 0; width: 100%; height: 100%; background: rgba(0,0,0,0.5); }
.search-popup-box { position: absolute; top: 80px; left: 50%; transform: translateX(-50%); width: 90%; max-width: 600px; background: #fff; border-radius: 12px; box-shadow: 0 20px 60px rgba(0,0,0,0.3); overflow: hidden; }
.search-popup-header { display: flex; align-items: center; padding: 16px 20px; border-bottom: 1px solid #eee; }
.search-popup-header input { flex: 1; border: none; outline: none; font-size: 16px; padding: 8px 0; }
.search-popup-close { background: none; border: none; font-size: 24px; cursor: pointer; color: #999; margin-left: 10px; }
.search-results { max-height: 400px; overflow-y: auto; padding: 10px 0; }
.search-tip { text-align: center; color: #999; padding: 40px 0; font-size: 14px; }
.search-result-item { display: block; padding: 12px 20px; border-bottom: 1px solid #f5f5f5; text-decoration: none; color: #333; transition: background 0.2s; }
.search-result-item:hover { background: #f8fafc; }
.search-result-item h4 { font-size: 15px; margin-bottom: 4px; color: #2563eb; }
.search-result-item p { font-size: 13px; color: #666; line-height: 1.5; }
.search-no-result { text-align: center; color: #999; padding: 40px 0; font-size: 14px; }