/* ============================================
   上海众装网络科技有限公司 - 企业官网样式
   Shanghai Zhongzhuang Network Technology Co., Ltd.
   ============================================ */

/* --- CSS 变量 --- */
:root {
  --primary: #0a0815;
  --primary-light: #1c1450;
  --accent: #7c3aed;
  --accent-hover: #6d28d9;
  --accent-light: rgba(124, 58, 237, 0.08);
  --accent-secondary: #3b82f6;
  --accent-blue-light: rgba(59, 130, 246, 0.06);
  --gradient: linear-gradient(135deg, #7c3aed, #3b82f6);
  --gradient-hover: linear-gradient(135deg, #6d28d9, #2563eb);
  --white: #ffffff;
  --gray-50: #f8f8fc;
  --gray-100: #f1f0f8;
  --gray-200: #e2e0f0;
  --gray-300: #c8c5de;
  --gray-400: #9a96b5;
  --gray-500: #6e6a8a;
  --gray-600: #4e4a6a;
  --gray-700: #353158;
  --gray-800: #1e1a3a;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --shadow: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -2px rgba(0,0,0,0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px -4px rgba(0,0,0,0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.1), 0 8px 10px -6px rgba(0,0,0,0.1);
  --shadow-accent: 0 4px 20px rgba(124, 58, 237, 0.35);
  --radius: 12px;
  --radius-sm: 8px;
  --transition: all 0.3s ease;
  --max-width: 1200px;
}

/* --- Reset & Base --- */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  color: var(--gray-800);
  line-height: 1.7;
  background: var(--white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  text-decoration: none;
  color: inherit;
  transition: var(--transition);
}

ul { list-style: none; }

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

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

/* --- 按钮 --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: 50px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  border: none;
  outline: none;
  white-space: nowrap;
}

.btn-primary {
  background: var(--gradient);
  color: var(--white);
  box-shadow: var(--shadow-accent);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(124, 58, 237, 0.45);
}

.btn-outline {
  background: transparent;
  color: var(--white);
  border: 2px solid rgba(255,255,255,0.3);
}
.btn-outline:hover {
  background: var(--white);
  color: var(--primary);
  border-color: var(--white);
}

.btn-white {
  background: var(--white);
  color: var(--accent);
  box-shadow: var(--shadow);
}
.btn-white:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

/* --- 导航栏 --- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 16px 0;
  transition: var(--transition);
  background: var(--white);
  border-bottom: 1px solid rgba(0,0,0,0.06);
  box-shadow: 0 1px 3px rgba(0,0,0,0.06);
}

.navbar.scrolled {
  border-bottom: 1px solid rgba(91, 94, 247, 0.15);
  background: var(--white);
  box-shadow: 0 1px 3px rgba(0,0,0,0.1);
  padding: 10px 0;
}

.navbar .container {
  max-width: 100%;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.navbar .logo {
  position: absolute;
  left: 24px;
  top: 50%;
  transform: translateY(-50%);
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 20px;
  font-weight: 700;
  color: var(--white);
  letter-spacing: 0.5px;
}

.logo-img {
  height: 48px;
  width: auto;
  display: block;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-links a {
  padding: 8px 18px;
  color: #5b5ef7;
  font-size: 15px;
  font-weight: 700;
  border-radius: 6px;
  position: relative;
}

.nav-links a:hover,
.nav-links a.active {
  color: #4a6cf7;
  background: rgba(91,94,247,0.08);
}

.nav-links a.active::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 18px;
  right: 18px;
  height: 2px;
  background: #5b5ef7;
  border-radius: 1px;
}

.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 4px;
}

.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: #5b5ef7;
  border-radius: 2px;
  transition: var(--transition);
}

/* --- Lucide Icons --- */
i[data-lucide] { display: inline-block; vertical-align: middle; flex-shrink: 0; }
.lucide-icon-xs { width: 16px; height: 16px; }
.lucide-icon-sm { width: 20px; height: 20px; }
.lucide-icon-md { width: 24px; height: 24px; }
.lucide-icon-lg { width: 32px; height: 32px; }
.lucide-icon-xl { width: 40px; height: 40px; }
.lucide-icon-2xl { width: 48px; height: 48px; }
.lucide-circle-sm, .lucide-circle-md, .lucide-circle-lg { display: inline-flex; align-items: center; justify-content: center; border-radius: 50%; flex-shrink: 0; }
.lucide-circle-sm { width: 48px; height: 48px; background: var(--accent-light); color: var(--accent); }
.lucide-circle-md { width: 56px; height: 56px; background: var(--accent-light); color: var(--accent); }
.lucide-circle-lg { width: 72px; height: 72px; background: var(--accent-light); color: var(--accent); }

/* --- 页尾 --- */
.footer {
  position: relative;
  background: url('../images/首页背景图.jpg') center/cover no-repeat;
  color: rgba(255,255,255,0.7);
  padding: 60px 0 30px;
}
.footer::before {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(8,6,26,0.6);
  z-index: 0;
}
.footer .container {
  position: relative;
  z-index: 1;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}

.footer h4 {
  color: var(--white);
  font-size: 16px;
  margin-bottom: 20px;
  font-weight: 600;
}

.footer-about p {
  font-size: 14px;
  line-height: 1.8;
  margin-bottom: 20px;
}

.footer-links li { margin-bottom: 10px; }
.footer-links a {
  font-size: 14px;
  color: rgba(255,255,255,0.6);
}
.footer-links a:hover { color: var(--accent); }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
}

.footer-bottom a { color: var(--accent); }

/* --- Hero 区域 --- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: flex-end;
  background: url('../images/hero-bund.png') center/cover no-repeat, #08061a;
  overflow: hidden;
  padding-bottom: 90px;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 720px;
}

.hero h1 {
  font-size: 44px;
  font-weight: 800;
  color: var(--white);
  line-height: 1.25;
  margin-bottom: 16px;
  letter-spacing: -1px;
  text-shadow: 0 2px 16px rgba(0,0,0,0.5), 0 1px 4px rgba(0,0,0,0.35);
}

.hero h1 .highlight {
  color: var(--white);
}

.hero-subtitle {
  font-size: 15px;
  color: rgba(255,255,255,0.92);
  line-height: 1.8;
  margin-bottom: 32px;
  max-width: 560px;
  text-shadow: 0 1px 8px rgba(0,0,0,0.5), 0 1px 2px rgba(0,0,0,0.35);
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.hero-actions .btn-outline {
  background: rgba(8, 6, 26, 0.35);
  border-color: rgba(255,255,255,0.6);
  backdrop-filter: blur(6px);
}
.hero-actions .btn-outline:hover {
  background: var(--white);
  border-color: var(--white);
}

.hero-stats {
  position: relative;
  z-index: 1;
  display: flex;
  gap: 56px;
  margin-top: 64px;
  padding-top: 28px;
  border-top: 1px solid rgba(255,255,255,0.25);
}

.hero-stat h3 {
  font-size: 38px;
  font-weight: 800;
  color: #fff;
  margin-bottom: 4px;
  text-shadow: 0 1px 10px rgba(0,0,0,0.5), 0 1px 2px rgba(0,0,0,0.3);
}

.hero-stat p {
  font-size: 13px;
  color: rgba(255,255,255,0.85);
  letter-spacing: 1px;
  text-shadow: 0 1px 6px rgba(0,0,0,0.4);
}

/* --- 通用区块 --- */
.section {
  padding: 100px 0;
}

.section-label {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 12px;
}

.section-title {
  font-size: 40px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 16px;
  letter-spacing: -0.5px;
}

.section-desc {
  font-size: 17px;
  color: var(--gray-500);
  max-width: 600px;
  margin-bottom: 48px;
  line-height: 1.8;
}

.text-center { text-align: center; }
.mx-auto { margin-left: auto; margin-right: auto; }

.bg-gray {
  background: var(--gray-50);
}

/* --- 关于我们 --- */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.about-video {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  aspect-ratio: 16/9;
  background: #000;
}

.about-image {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  aspect-ratio: 4/3;
  background: linear-gradient(135deg, var(--primary-light), #2a1a60);
  display: flex;
  align-items: center;
  justify-content: center;
}

.about-image-inner {
  text-align: center;
  color: rgba(255,255,255,0.6);
  padding: 40px;
}

.about-image-inner .icon-large {
  margin-bottom: 16px;
  opacity: 0.9;
}
.about-image-inner .icon-large i[data-lucide] {
  width: 56px;
  height: 56px;
}

.about-image-inner p {
  font-size: 15px;
}

.about-video .video-poster:hover > div:first-child {
  transform: scale(1.1);
  background: rgba(255,255,255,0.25);
}
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.04) 1px, transparent 1px);
  background-size: 30px 30px;
}

.about-text .highlight-box {
  background: var(--accent-light);
  border-left: 4px solid var(--accent);
  padding: 16px 20px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin: 24px 0;
  font-size: 15px;
  color: var(--accent);
  font-weight: 600;
}

.about-certs {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.cert-badge {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--white);
  border: 1px solid var(--gray-200);
  padding: 10px 18px;
  border-radius: 50px;
  font-size: 13px;
  font-weight: 500;
  color: var(--gray-600);
  box-shadow: var(--shadow-sm);
}

.cert-badge .icon {
  color: var(--accent);
  font-size: 16px;
}

/* --- 荣誉奖项 --- */
.awards-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.award-card {
  background: var(--white);
  padding: 32px 24px;
  border-radius: var(--radius);
  text-align: center;
  border: 1px solid var(--gray-200);
  transition: var(--transition);
}

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

.award-card .num {
  font-size: 40px;
  font-weight: 800;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 8px;
}

.award-card p {
  font-size: 14px;
  color: var(--gray-500);
}

/* --- 服务卡片 --- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.service-card {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  padding: 36px 28px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--gradient);
  opacity: 0;
  transition: var(--transition);
}

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

.service-card:hover::before {
  opacity: 1;
}

.service-icon {
  width: 56px;
  height: 56px;
  background: linear-gradient(135deg, rgba(124,58,237,0.12), rgba(59,130,246,0.08));
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  margin-bottom: 20px;
  position: relative;
}
.service-icon::after {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: 15px;
  background: linear-gradient(135deg, rgba(124,58,237,0.2), transparent);
  z-index: -1;
}

.service-card h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 10px;
}

.service-card p {
  font-size: 14px;
  color: var(--gray-500);
  line-height: 1.7;
}

.service-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
}

.service-tag {
  font-size: 12px;
  padding: 4px 12px;
  background: var(--gray-100);
  color: var(--gray-600);
  border-radius: 50px;
  font-weight: 500;
}

/* --- 行业领域 --- */
.industries-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.industry-card {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  padding: 28px 20px;
  text-align: center;
  transition: var(--transition);
  cursor: default;
}

.industry-card:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow);
}

.industry-card .icon {
  font-size: 36px;
  margin-bottom: 12px;
}

.industry-card h4 {
  font-size: 15px;
  font-weight: 600;
  color: var(--primary);
}

/* --- 联系我们 --- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 48px;
  align-items: start;
}

.contact-info-card {
  background: var(--primary);
  color: var(--white);
  padding: 48px 36px;
  border-radius: var(--radius);
  height: 100%;
}

.contact-info-card h3 {
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 12px;
}

.contact-info-card > p {
  color: rgba(255,255,255,0.6);
  margin-bottom: 36px;
  line-height: 1.7;
}

.contact-item {
  display: flex;
  gap: 16px;
  margin-bottom: 24px;
  align-items: flex-start;
}

.contact-item .icon-wrap {
  width: 44px;
  height: 44px;
  background: rgba(255,255,255,0.1);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  flex-shrink: 0;
}

.contact-item h4 {
  font-size: 14px;
  color: rgba(255,255,255,0.5);
  margin-bottom: 4px;
}

.contact-item p,
.contact-item a {
  font-size: 15px;
  color: rgba(255,255,255,0.9);
}

/* --- 联系表单 --- */
.contact-form-wrap {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  padding: 40px;
}

.contact-form-wrap h3 {
  font-size: 24px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 8px;
}

.contact-form-wrap > p {
  color: var(--gray-500);
  margin-bottom: 28px;
  font-size: 14px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--gray-700);
  margin-bottom: 8px;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-family: inherit;
  color: var(--gray-800);
  background: var(--gray-50);
  transition: var(--transition);
  outline: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(124,58,237,0.15);
  background: var(--white);
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

.form-submit {
  margin-top: 8px;
}

.form-submit .btn {
  width: 100%;
  justify-content: center;
}

.form-success {
  display: none;
  text-align: center;
  padding: 40px 20px;
}

.form-success.show {
  display: block;
}

.form-success .icon {
  font-size: 56px;
  margin-bottom: 16px;
}

.form-success h3 {
  font-size: 22px;
  color: var(--primary);
  margin-bottom: 8px;
}

.form-success p {
  color: var(--gray-500);
}

/* --- 页面通用 Hero --- */
.page-hero {
  padding: 160px 0 80px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  text-align: center;
  position: relative;
  overflow: hidden;
}

.page-hero::before {
  content: '';
  position: absolute;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(124,58,237,0.15) 0%, transparent 70%);
  top: -100px;
  right: -100px;
  border-radius: 50%;
}

.page-hero h1 {
  font-size: 48px;
  font-weight: 800;
  color: var(--white);
  margin-bottom: 12px;
}

.page-hero p {
  font-size: 17px;
  color: rgba(255,255,255,0.6);
  max-width: 600px;
  margin: 0 auto;
}

/* --- 公司介绍详情页 --- */
.company-intro {
  padding: 80px 0;
}

.intro-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}

.intro-text p {
  font-size: 16px;
  color: var(--gray-600);
  line-height: 1.9;
  margin-bottom: 20px;
}

.intro-sidebar {
  position: sticky;
  top: 100px;
}

.info-card {
  background: var(--gray-50);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  padding: 32px;
  margin-bottom: 20px;
}

.info-card h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 20px;
}

.info-item {
  display: flex;
  gap: 12px;
  margin-bottom: 16px;
  font-size: 14px;
}

.info-item .label {
  color: var(--gray-400);
  min-width: 70px;
  flex-shrink: 0;
}

.info-item .value {
  color: var(--gray-700);
  font-weight: 500;
}

/* --- 时间线 --- */
.timeline {
  position: relative;
  padding-left: 32px;
  border-left: 2px solid var(--gray-200);
}

.timeline-item {
  position: relative;
  margin-bottom: 28px;
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: -39px;
  top: 6px;
  width: 12px;
  height: 12px;
  background: var(--accent);
  border-radius: 50%;
  border: 3px solid var(--white);
  box-shadow: 0 0 0 2px var(--accent);
}

.timeline-item .year {
  font-size: 13px;
  color: var(--accent);
  font-weight: 700;
  margin-bottom: 4px;
}

.timeline-item h4 {
  font-size: 16px;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: 4px;
}

.timeline-item p {
  font-size: 14px;
  color: var(--gray-500);
}

/* ============================================
   现代数字孪生风格 - 新增区块
   ============================================ */

/* --- 产品矩阵（对标飞渡六宫格） --- */
.product-matrix {
  padding: 0 0 100px;
  background: var(--gray-50);
}
.product-matrix .container {
  position: relative;
}
.matrix-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: rgba(0,0,0,0.04);
  border-radius: 16px;
  overflow: hidden;
}
.matrix-item {
  background: var(--white);
  padding: 48px 36px;
  text-align: left;
  transition: all 0.4s ease;
  position: relative;
  overflow: hidden;
}
.matrix-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient);
  transform: scaleX(0);
  transition: transform 0.4s ease;
}
.matrix-item:hover::before {
  transform: scaleX(1);
}
.matrix-item:hover {
  background: #faf9ff;
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(124,58,237,0.1);
  z-index: 1;
}
.matrix-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: linear-gradient(135deg, rgba(124,58,237,0.1), rgba(59,130,246,0.08));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  margin-bottom: 20px;
}
.matrix-item h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--gray-800);
  margin-bottom: 10px;
}
.matrix-item p {
  font-size: 14px;
  color: var(--gray-500);
  line-height: 1.7;
}

/* --- 解决方案卡片（对标51world） --- */
.solution-showcase {
  padding: 100px 0;
  background: var(--white);
}
.solution-card {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  background: var(--gray-50);
  border-radius: 20px;
  overflow: hidden;
  margin-bottom: 32px;
  transition: all 0.4s ease;
}
.solution-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 48px rgba(0,0,0,0.08);
}
.solution-card:nth-child(even) {
  direction: rtl;
}
.solution-card:nth-child(even) .sol-content {
  direction: ltr;
}
.sol-visual {
  background: linear-gradient(135deg, rgba(124,58,237,0.08), rgba(59,130,246,0.06));
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 48px;
  min-height: 280px;
}
.sol-visual .sol-icon i[data-lucide] {
  width: 72px;
  height: 72px;
  opacity: 0.3;
}
.sol-content {
  padding: 48px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.sol-content .sol-tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 2px;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 12px;
}
.sol-content h3 {
  font-size: 26px;
  font-weight: 700;
  color: var(--gray-800);
  margin-bottom: 14px;
}
.sol-content p {
  font-size: 15px;
  color: var(--gray-500);
  line-height: 1.8;
  margin-bottom: 24px;
}
.sol-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 600;
  color: var(--accent);
  text-decoration: none;
  transition: gap 0.3s ease;
}
.sol-link:hover {
  gap: 12px;
}

/* --- 行业领域新样式 --- */
.industry-showcase {
  padding: 100px 0;
  background: var(--gray-50);
}
/* 更多案例按钮 */
.industry-more-wrap {
  display: flex;
  justify-content: center;
  margin-top: 48px;
}
.industry-more-wrap .btn-lg {
  padding: 16px 44px;
  font-size: 16px;
}
.industry-tabs {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 48px;
}
.ind-tab {
  padding: 10px 24px;
  border-radius: 50px;
  font-size: 14px;
  font-weight: 500;
  border: 1px solid var(--gray-200);
  background: var(--white);
  color: var(--gray-600);
  cursor: pointer;
  transition: all 0.3s ease;
  white-space: nowrap;
}
.ind-tab:hover,
.ind-tab.active {
  background: var(--gradient);
  color: var(--white);
  border-color: transparent;
  box-shadow: 0 4px 16px rgba(124,58,237,0.3);
}
.industry-grid-new {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.industry-preview {
  background: var(--white);
  border-radius: 16px;
  overflow: hidden;
  transition: all 0.4s ease;
  cursor: pointer;
  border: 1px solid var(--gray-200);
}
.industry-preview:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 40px rgba(0,0,0,0.08);
  border-color: rgba(124,58,237,0.3);
}
/* 行业卡片视频封面区（视频整理中，先用渐变占位，视频到位后由 JS 自动抓帧替换） */
.ind-preview-video {
  height: 150px;
  overflow: hidden;
}
.ind-preview-video .video-thumb {
  height: 150px;
  background: linear-gradient(135deg, #1a1450 0%, #0f1a40 50%, #14103a 100%);
}
.industry-preview:hover .ind-preview-video .video-thumb {
  background: linear-gradient(135deg, #241d6e 0%, #14245c 50%, #1c174e 100%);
}
.ind-preview-body {
  padding: 20px;
}
.ind-preview-body h4 {
  font-size: 16px;
  font-weight: 600;
  color: var(--gray-800);
  margin-bottom: 6px;
}
.ind-preview-body p {
  font-size: 13px;
  color: var(--gray-500);
}

/* --- 动态数字统计 --- */
.stats-counter {
  padding: 80px 0;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  position: relative;
  overflow: hidden;
}
.stats-counter::before {
  content: '';
  position: absolute;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(124,58,237,0.15) 0%, transparent 70%);
  top: -100px;
  left: -100px;
  border-radius: 50%;
}
.stats-counter::after {
  content: '';
  position: absolute;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(59,130,246,0.1) 0%, transparent 70%);
  bottom: -80px;
  right: -80px;
  border-radius: 50%;
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 40px;
  position: relative;
  z-index: 1;
}
.stat-item {
  text-align: center;
}
.stat-number {
  font-size: 52px;
  font-weight: 800;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  margin-bottom: 12px;
}
.stat-label {
  font-size: 14px;
  color: rgba(255,255,255,0.55);
  letter-spacing: 1px;
}

/* ============================================
   首页核心服务概览卡片
   ============================================ */
.module-overview {
  padding: 100px 0;
  background: var(--gray-50);
}

.module-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.module-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  background: var(--white);
  border-radius: 20px;
  padding: 48px 32px 32px;
  text-decoration: none;
  border: 1px solid var(--gray-200);
  transition: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1.2);
  position: relative;
  overflow: hidden;
}

.module-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--gradient);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s ease;
}

.module-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 24px 56px rgba(124, 58, 237, 0.1);
  border-color: rgba(124, 58, 237, 0.25);
}

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

.module-icon-wrapper {
  width: 72px;
  height: 72px;
  border-radius: 20px;
  background: rgba(124, 58, 237, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  transition: all 0.4s ease;
}

.module-card:hover .module-icon-wrapper {
  background: var(--gradient);
}

.module-icon {
  transition: transform 0.4s ease;
}
.module-icon i[data-lucide] {
  width: 36px;
  height: 36px;
}

.module-card:hover .module-icon {
  transform: scale(1.15);
}

.module-card h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--gray-800);
  margin-bottom: 12px;
}

.module-card p {
  font-size: 14px;
  color: var(--gray-500);
  line-height: 1.7;
  margin-bottom: 20px;
}

.module-arrow {
  font-size: 13px;
  font-weight: 600;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  opacity: 0;
  transform: translateY(8px);
  transition: all 0.3s ease;
  margin-top: auto;
}

.module-card:hover .module-arrow {
  opacity: 1;
  transform: translateY(0);
}

/* ============================================
   视频案例展示区
   ============================================ */

.video-showcase {
  padding: 100px 0;
  background: var(--gray-50);
}

/* 视频卡片网格 */
.video-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.video-card {
  background: var(--white);
  border-radius: 16px;
  overflow: hidden;
  cursor: pointer;
  transition: all 0.4s ease;
  border: 1px solid var(--gray-200);
  position: relative;
}

.video-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 48px rgba(124,58,237,0.12);
  border-color: rgba(124,58,237,0.3);
}

/* 缩略图区域 */
.video-thumb {
  position: relative;
  width: 100%;
  height: 200px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  transition: all 0.4s ease;
}

.video-card:hover .video-thumb {
  transform: scale(1.03);
}

.video-thumb-icon i[data-lucide] {
  width: 56px;
  height: 56px;
  opacity: 0.25;
  transition: opacity 0.4s ease;
}
.video-thumb-icon {
  position: relative;
  z-index: 1;
}

.video-card:hover .video-thumb-icon {
  opacity: 0.15;
}

/* 视频封面：video 标签自动抓取第一帧 */
.video-thumb video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
  z-index: 1;
}

.video-card:hover .video-thumb video {
  transform: scale(1.05);
}

/* 播放按钮 */
.video-play-btn {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0.9);
  width: 60px;
  height: 60px;
  background: rgba(124, 58, 237, 0.85);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0.9;
  transition: all 0.3s ease;
  box-shadow: 0 4px 24px rgba(124,58,237,0.4);
  z-index: 2;
}

.video-card:hover .video-play-btn {
  transform: translate(-50%, -50%) scale(1.1);
  opacity: 1;
  background: rgba(124, 58, 237, 1);
  box-shadow: 0 6px 32px rgba(124,58,237,0.55);
}

/* 视频时长角标 */
.video-duration {
  position: absolute;
  bottom: 12px;
  right: 12px;
  background: rgba(0,0,0,0.7);
  color: var(--white);
  font-size: 12px;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 6px;
  z-index: 2;
  letter-spacing: 0.5px;
}

/* 视频信息区 */
.video-info {
  padding: 20px 24px;
}

.video-tag {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 8px;
}

.video-info h4 {
  font-size: 16px;
  font-weight: 700;
  color: var(--gray-800);
  margin-bottom: 6px;
  line-height: 1.4;
}

.video-info p {
  font-size: 13px;
  color: var(--gray-500);
  line-height: 1.6;
}

/* ============================================
   视频弹窗 / Lightbox Modal
   ============================================ */

.video-modal {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.video-modal.active {
  opacity: 1;
  pointer-events: all;
}

.video-modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(10,8,21,0.92);
  backdrop-filter: blur(8px);
}

.video-modal-content {
  position: relative;
  width: 90%;
  max-width: 960px;
  z-index: 1;
  animation: modalIn 0.35s ease;
}

.video-modal.active .video-modal-content {
  animation: modalIn 0.35s ease;
}

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

.video-modal-close {
  position: absolute;
  top: -48px;
  right: 0;
  width: 40px;
  height: 40px;
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.15);
  color: var(--white);
  font-size: 20px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
  z-index: 2;
}

.video-modal-close:hover {
  background: rgba(255,255,255,0.2);
  transform: rotate(90deg);
}

/* 视频播放容器 */
.video-player-wrapper {
  position: relative;
  width: 100%;
  padding-bottom: 56.25%; /* 16:9 */
  background: #000;
  border-radius: 16px;
  overflow: hidden;
}

.video-player-wrapper iframe,
.video-player-wrapper video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: none;
  border-radius: 16px;
}

/* 空态占位 */
.video-placeholder {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,0.7);
  text-align: center;
  padding: 40px;
}

.video-placeholder-icon {
  font-size: 56px;
  margin-bottom: 16px;
  opacity: 0.5;
}

.video-placeholder p {
  font-size: 15px;
  margin-bottom: 8px;
  color: rgba(255,255,255,0.5);
}

.video-placeholder-hint {
  font-size: 13px !important;
  color: rgba(255,255,255,0.3) !important;
  line-height: 1.8;
  max-width: 400px;
}

.video-placeholder-hint strong {
  color: rgba(255,255,255,0.5);
}

/* 弹窗标题栏 */
.video-modal-title {
  color: var(--white);
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 16px;
  padding-right: 48px;
}

/* --- 响应式 --- */
@media (max-width: 1024px) {
  .video-grid { grid-template-columns: repeat(2, 1fr); }
  .module-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .video-grid { grid-template-columns: 1fr; }
  .module-grid { grid-template-columns: 1fr; }
  .video-modal-content { width: 96%; }
  .module-card { padding: 36px 24px 24px; }
  .video-thumb { height: 180px; }
  .ind-preview-video .video-thumb { height: 180px; }
}

/* --- 增强卡片悬停效果 --- */
.card-glow {
  position: relative;
}
.card-glow::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: linear-gradient(135deg, rgba(124,58,237,0.1), transparent);
  opacity: 0;
  transition: opacity 0.4s ease;
  pointer-events: none;
}
.card-glow:hover::after {
  opacity: 1;
}

/* --- 响应式更新 --- */
@media (max-width: 1024px) {
  .matrix-grid { grid-template-columns: repeat(2, 1fr); }
  .solution-card { grid-template-columns: 1fr; }
  .solution-card:nth-child(even) { direction: ltr; }
  .industry-grid-new { grid-template-columns: repeat(2, 1fr); }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 32px; }
}
@media (max-width: 768px) {
  .matrix-grid { grid-template-columns: 1fr; }
  .industry-grid-new { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 1024px) {
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .industries-grid { grid-template-columns: repeat(2, 1fr); }
  .awards-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .about-grid,
  .intro-grid { grid-template-columns: 1fr; gap: 40px; }
  .contact-grid { grid-template-columns: 1fr; }
  .hero h1 { font-size: 40px; }
  .hero-stats { gap: 32px; flex-wrap: wrap; }
}

@media (max-width: 768px) {
  .nav-links {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background: var(--white);
    flex-direction: column;
    padding: 80px 24px 24px;
    transition: var(--transition);
    gap: 4px;
  }
  .nav-links.show { right: 0; }
  .nav-links a { width: 100%; padding: 14px 16px; border-radius: 8px; }
  .nav-links a:hover,
  .nav-links a.active { background: rgba(91,94,247,0.08); }
  .menu-toggle {
    display: flex;
    z-index: 1001;
    position: absolute;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
  }

  .services-grid { grid-template-columns: 1fr; }
  .industries-grid { grid-template-columns: repeat(2, 1fr); }
  .awards-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .form-row { grid-template-columns: 1fr; }

  .hero h1 { font-size: 32px; }
  .hero-subtitle { font-size: 15px; }
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { width: 100%; justify-content: center; }

  .section { padding: 64px 0; }
  .section-title { font-size: 28px; }
  .page-hero { padding: 120px 0 48px; }
  .page-hero h1 { font-size: 32px; }

  .footer-bottom { flex-direction: column; gap: 8px; text-align: center; }
}

/* --- 动画 --- */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* --- 回到顶部 --- */
.back-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 48px;
  height: 48px;
  background: var(--accent);
  color: var(--white);
  border: none;
  border-radius: 50%;
  font-size: 20px;
  cursor: pointer;
  box-shadow: var(--shadow-lg);
  opacity: 0;
  transform: translateY(20px);
  transition: var(--transition);
  z-index: 999;
  display: flex;
  align-items: center;
  justify-content: center;
}

.back-to-top.show {
  opacity: 1;
  transform: translateY(0);
}

.back-to-top:hover {
  background: var(--accent-hover);
  transform: translateY(-4px);
}