/* =============================================
   劲朗科技官网 - 全局样式
   包含：CSS 变量、重置样式、通用组件、各页面核心样式
   ============================================= */

/* ----- CSS 变量 ----- */
:root {
  --color-primary: #0A1F44;       /* 深蓝主色 */
  --color-blue: #1E6FD9;          /* 科技蓝 */
  --color-accent: #00C9FF;        /* 青色点缀 */
  --color-bg-light: #E8F4FF;      /* 浅蓝背景 */
  --color-bg-section: #F5F8FF;    /* 浅灰蓝区块背景 */
  --color-text: #2C3E50;          /* 主文字色 */
  --color-text-light: #6B7A8D;    /* 次要文字色 */
  --color-white: #FFFFFF;
  --color-border: #D8E8F8;

  --font-base: 'PingFang SC', 'Microsoft YaHei', '微软雅黑', sans-serif;
  --font-size-base: 16px;

  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;

  --shadow-sm: 0 2px 8px rgba(10, 31, 68, 0.08);
  --shadow-md: 0 8px 30px rgba(10, 31, 68, 0.12);
  --shadow-lg: 0 20px 60px rgba(10, 31, 68, 0.18);

  --transition: 0.3s ease;
  --nav-height: 70px;
  --container-max: 1200px;
}

/* ----- 重置与基础样式 ----- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: var(--font-size-base);
}

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

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

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

ul, ol {
  list-style: none;
}

button {
  cursor: pointer;
  border: none;
  background: none;
  font-family: var(--font-base);
}

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

/* ----- 通用章节标题 ----- */
.section-header {
  text-align: center;
  margin-bottom: 56px;
}

.section-tag {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-blue);
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 12px;
  padding: 4px 14px;
  background: rgba(30, 111, 217, 0.08);
  border-radius: 20px;
}

.section-title {
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 16px;
  line-height: 1.3;
}

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

.section-desc {
  font-size: 1rem;
  color: var(--color-text-light);
  max-width: 560px;
  margin: 0 auto;
  line-height: 1.8;
}

/* ----- 按钮样式 ----- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: 6px;
  font-size: 15px;
  font-weight: 600;
  transition: all var(--transition);
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-blue), var(--color-accent));
  color: var(--color-white);
  box-shadow: 0 4px 20px rgba(30, 111, 217, 0.35);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(30, 111, 217, 0.45);
  color: var(--color-white);
}

.btn-outline {
  border: 2px solid var(--color-white);
  color: var(--color-white);
  background: transparent;
}

.btn-outline:hover {
  background: var(--color-white);
  color: var(--color-blue);
}

.btn-outline-blue {
  border: 2px solid var(--color-blue);
  color: var(--color-blue);
  background: transparent;
}

.btn-outline-blue:hover {
  background: var(--color-blue);
  color: var(--color-white);
}

/* ----- 图片占位块 ----- */
.img-placeholder {
  background: linear-gradient(135deg, var(--color-bg-light) 0%, #d0e8ff 100%);
  border: 2px dashed var(--color-border);
  border-radius: var(--radius-md);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: var(--color-blue);
  font-size: 14px;
  gap: 10px;
}

.img-placeholder .placeholder-icon {
  font-size: 36px;
  opacity: 0.5;
}

.img-placeholder span {
  opacity: 0.6;
  font-size: 13px;
}

/* ----- 导航栏 ----- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--nav-height);
  z-index: 1000;
  transition: all var(--transition);
  background: transparent;
}

.navbar.scrolled {
  background: rgba(10, 31, 68, 0.96);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 2px 20px rgba(0,0,0,0.15);
}

.navbar.white-nav {
  background: var(--color-white);
  box-shadow: var(--shadow-sm);
}

.navbar.white-nav .nav-logo-text,
.navbar.white-nav .nav-links a {
  color: var(--color-primary);
}

.navbar.white-nav .nav-cta {
  background: linear-gradient(135deg, var(--color-blue), var(--color-accent));
  color: var(--color-white) !important;
}

.nav-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* Logo */
.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}

.nav-logo-icon {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--color-blue), var(--color-accent));
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 16px;
  color: var(--color-white);
  flex-shrink: 0;
}

.nav-logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.nav-logo-text .logo-main {
  font-size: 16px;
  font-weight: 700;
  color: var(--color-white);
  letter-spacing: 1px;
}

.nav-logo-text .logo-sub {
  font-size: 10px;
  color: rgba(255,255,255,0.6);
  letter-spacing: 1px;
}

/* 导航链接 */
.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-links a {
  padding: 8px 14px;
  font-size: 14px;
  font-weight: 500;
  color: rgba(255,255,255,0.85);
  border-radius: 6px;
  transition: all var(--transition);
  position: relative;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--color-white);
  background: rgba(255,255,255,0.1);
}

/* 导航 CTA 按钮 */
.nav-cta {
  padding: 8px 20px;
  background: rgba(255,255,255,0.15);
  border: 1px solid rgba(255,255,255,0.3);
  border-radius: 6px;
  color: var(--color-white) !important;
  font-weight: 600;
  font-size: 14px;
  backdrop-filter: blur(4px);
  transition: all var(--transition);
}

.nav-cta:hover {
  background: var(--color-white) !important;
  color: var(--color-blue) !important;
}

/* 汉堡菜单按钮（移动端） */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-white);
  border-radius: 2px;
  transition: all var(--transition);
}

.nav-toggle.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav-toggle.open span:nth-child(2) {
  opacity: 0;
}
.nav-toggle.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ----- Hero 区域（首页） ----- */
.hero {
  min-height: 100vh;
  position: relative;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: linear-gradient(135deg, #0A1F44 0%, #0d2d6b 50%, #0f3a8a 100%);
}

/* 几何线条背景装饰 */
.hero-bg-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
}

.hero-bg-glow {
  position: absolute;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0, 201, 255, 0.15) 0%, transparent 70%);
  top: -100px;
  right: -100px;
  pointer-events: none;
}

.hero-bg-glow-2 {
  position: absolute;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(30, 111, 217, 0.2) 0%, transparent 70%);
  bottom: -50px;
  left: 10%;
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 2;
  width: 100%;
}

.hero-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  padding-top: var(--nav-height);
}

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

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--color-accent);
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 24px;
  font-weight: 600;
}

.hero-tag::before {
  content: '';
  display: block;
  width: 20px;
  height: 2px;
  background: var(--color-accent);
}

.hero-title {
  font-size: 3rem;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 20px;
  letter-spacing: -0.5px;
}

.hero-title .highlight {
  background: linear-gradient(90deg, var(--color-accent), var(--color-blue));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 1.1rem;
  color: rgba(255,255,255,0.75);
  line-height: 1.8;
  margin-bottom: 36px;
  max-width: 480px;
}

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

/* Hero 右侧图片区 */
.hero-visual {
  position: relative;
}

.hero-img-wrap {
  width: 100%;
  aspect-ratio: 4/3;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  position: relative;
}

.hero-img-placeholder {
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(30,111,217,0.3), rgba(0,201,255,0.2));
  border: 1px solid rgba(255,255,255,0.15);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,0.6);
  font-size: 14px;
  gap: 12px;
}

.hero-img-placeholder .icon {
  font-size: 48px;
  opacity: 0.4;
}

/* 首页主视觉图片：保持比例填充卡片 */
.hero-img,
.service-card-img img,
.service-detail-img img,
.cases-banner-img img,
.case-card-img img,
.mes-hero-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* Hero 统计数字 */
.hero-stats {
  display: flex;
  gap: 32px;
  margin-top: 32px;
  flex-wrap: wrap;
}

.stat-item {
  text-align: center;
}

.stat-num {
  font-size: 2rem;
  font-weight: 800;
  color: var(--color-accent);
  line-height: 1;
}

.stat-label {
  font-size: 12px;
  color: rgba(255,255,255,0.55);
  margin-top: 4px;
}

/* 向下滚动指示器 */
.scroll-indicator {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: rgba(255,255,255,0.4);
  font-size: 12px;
  animation: bounce 2s infinite;
}

.scroll-indicator .arrow {
  width: 20px;
  height: 20px;
  border-right: 2px solid rgba(255,255,255,0.4);
  border-bottom: 2px solid rgba(255,255,255,0.4);
  transform: rotate(45deg);
}

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

/* ----- 优势模块 ----- */
.advantages {
  padding: 100px 0;
  background: var(--color-white);
}

.advantages-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.adv-card {
  padding: 36px 28px;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  text-align: center;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.adv-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-blue), var(--color-accent));
  transform: scaleX(0);
  transition: transform var(--transition);
}

.adv-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
  border-color: var(--color-blue);
}

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

.adv-icon {
  width: 64px;
  height: 64px;
  background: linear-gradient(135deg, var(--color-bg-light), #c8e0ff);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  margin: 0 auto 20px;
}

.adv-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 10px;
}

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

/* ----- 业务速览 ----- */
.services-preview {
  padding: 100px 0;
  background: var(--color-bg-section);
}

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

.service-card {
  background: var(--color-white);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
}

.service-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-6px);
}

.service-card-img {
  height: 180px;
  background: linear-gradient(135deg, var(--color-bg-light), #c0d8f8);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 48px;
  position: relative;
  overflow: hidden;
}

.service-card-img::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 40%;
  background: linear-gradient(transparent, rgba(10,31,68,0.05));
}

.service-card-img img {
  position: relative;
  z-index: 0;
}

.service-card-body {
  padding: 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.service-card-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 10px;
}

.service-card-desc {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.7;
  flex: 1;
}

.service-card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 16px;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-blue);
  transition: gap var(--transition);
}

.service-card-link:hover {
  gap: 10px;
}

/* ----- 合作客户 ----- */
.clients {
  padding: 80px 0;
  background: var(--color-white);
}

.clients-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: 48px;
}

.client-item {
  height: 80px;
  background: var(--color-bg-section);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 12px 20px;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text-light);
  transition: all var(--transition);
  text-align: center;
}

.client-item:hover {
  border-color: var(--color-blue);
  color: var(--color-blue);
  background: var(--color-bg-light);
  box-shadow: var(--shadow-sm);
}

/* ----- 案例 Banner ----- */
.cases-banner {
  padding: 100px 0;
  background: linear-gradient(135deg, var(--color-primary) 0%, #0d2d6b 100%);
  position: relative;
  overflow: hidden;
}

.cases-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 60px 60px;
}

.cases-banner-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.cases-banner-text {
  color: var(--color-white);
}

.cases-banner-text .section-tag {
  background: rgba(0, 201, 255, 0.15);
  color: var(--color-accent);
}

.cases-banner-text .section-title {
  color: var(--color-white);
  text-align: left;
  margin-bottom: 16px;
}

.cases-banner-text .section-desc {
  color: rgba(255,255,255,0.7);
  text-align: left;
  margin: 0 0 32px 0;
}

.cases-banner-img {
  height: 280px;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, rgba(30,111,217,0.3), rgba(0,201,255,0.2));
  border: 1px solid rgba(255,255,255,0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  color: rgba(255,255,255,0.5);
  font-size: 14px;
  gap: 12px;
}

.cases-banner-img .icon {
  font-size: 48px;
}

.cases-banner-img img {
  border-radius: inherit;
}

/* ----- 页脚 ----- */
.footer {
  background: #040e1f;
  color: rgba(255,255,255,0.7);
  padding: 60px 0 0;
}

.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.footer-brand .nav-logo {
  margin-bottom: 16px;
}

.footer-brand p {
  font-size: 14px;
  line-height: 1.8;
  max-width: 280px;
}

.footer-col-title {
  font-size: 14px;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 20px;
  letter-spacing: 1px;
}

.footer-links li {
  margin-bottom: 10px;
}

.footer-links a {
  font-size: 14px;
  color: rgba(255,255,255,0.55);
  transition: color var(--transition);
}

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

.footer-contact-item {
  display: flex;
  gap: 10px;
  margin-bottom: 12px;
  font-size: 14px;
  align-items: flex-start;
}

.footer-contact-item .icon {
  flex-shrink: 0;
  margin-top: 2px;
}

.footer-bottom {
  padding: 20px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 13px;
  color: rgba(255,255,255,0.35);
}

/* ----- 页面 Hero（内页通用） ----- */
.page-hero {
  padding: 140px 0 80px;
  background: linear-gradient(135deg, var(--color-primary) 0%, #0d2d6b 100%);
  position: relative;
  overflow: hidden;
  text-align: center;
  color: var(--color-white);
}

.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 60px 60px;
}

.page-hero-content {
  position: relative;
  z-index: 1;
}

.page-hero-title {
  font-size: 2.5rem;
  font-weight: 800;
  margin-bottom: 16px;
}

.page-hero-desc {
  font-size: 1.05rem;
  color: rgba(255,255,255,0.75);
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.8;
}

/* 面包屑 */
.breadcrumb {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 13px;
  color: rgba(255,255,255,0.5);
  margin-bottom: 20px;
}

.breadcrumb a {
  color: rgba(255,255,255,0.5);
}

.breadcrumb a:hover {
  color: var(--color-accent);
}

.breadcrumb .sep {
  opacity: 0.4;
}

/* ----- 服务页样式 ----- */
.services-detail {
  padding: 100px 0;
}

.service-detail-item {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  margin-bottom: 80px;
  padding-bottom: 80px;
  border-bottom: 1px solid var(--color-border);
}

.service-detail-item:last-child {
  border-bottom: none;
  margin-bottom: 0;
  padding-bottom: 0;
}

.service-detail-item.reverse {
  direction: rtl;
}

.service-detail-item.reverse > * {
  direction: ltr;
}

.service-detail-img {
  height: 320px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--color-bg-light), #c0d8f8);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  font-size: 64px;
  gap: 12px;
  color: var(--color-blue);
  overflow: hidden;
}

.service-detail-text .service-tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  color: var(--color-blue);
  background: var(--color-bg-light);
  padding: 4px 12px;
  border-radius: 20px;
  margin-bottom: 16px;
  letter-spacing: 1px;
}

.service-detail-text h2 {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 16px;
  line-height: 1.3;
}

.service-detail-text p {
  font-size: 15px;
  color: var(--color-text-light);
  line-height: 1.8;
  margin-bottom: 24px;
}

.feature-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-bottom: 28px;
}

.feature-list li {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--color-text);
}

.feature-list li::before {
  content: '✓';
  width: 20px;
  height: 20px;
  background: linear-gradient(135deg, var(--color-blue), var(--color-accent));
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  font-weight: 700;
  flex-shrink: 0;
}

/* ----- 案例页样式 ----- */
.cases-intro {
  padding: 80px 0 0;
  text-align: center;
  background: var(--color-white);
}

.cases-grid {
  padding: 60px 0 100px;
  background: var(--color-white);
}

.cases-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.case-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
}

.case-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-6px);
  border-color: var(--color-blue);
}

.case-card-img {
  height: 200px;
  background: linear-gradient(135deg, var(--color-bg-light), #c0d8f8);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 56px;
  position: relative;
  overflow: hidden;
}

.case-card-img img {
  transition: transform var(--transition);
}

.case-card:hover .case-card-img img {
  transform: scale(1.04);
}

.case-card-img .badge {
  position: absolute;
  top: 16px;
  right: 16px;
  font-size: 11px;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 20px;
  background: var(--color-blue);
  color: white;
}

.case-card-img .badge.coming {
  background: rgba(107, 122, 141, 0.7);
}

.case-card-body {
  padding: 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.case-card-category {
  font-size: 12px;
  font-weight: 600;
  color: var(--color-blue);
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 10px;
}

.case-card-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 10px;
  line-height: 1.4;
}

.case-card-desc {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.7;
  flex: 1;
  margin-bottom: 20px;
}

.case-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 20px;
}

.case-tag {
  font-size: 12px;
  padding: 3px 10px;
  background: var(--color-bg-light);
  color: var(--color-blue);
  border-radius: 20px;
  border: 1px solid var(--color-border);
}

/* ----- MES 方案页样式 ----- */
.mes-pain-points {
  padding: 100px 0;
  background: var(--color-bg-section);
}

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

.pain-card {
  background: var(--color-white);
  border-radius: var(--radius-md);
  padding: 28px;
  border-left: 4px solid var(--color-blue);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
}

.pain-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}

.pain-icon {
  font-size: 28px;
  margin-bottom: 12px;
}

.pain-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.pain-desc {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.7;
}

/* MES 功能模块 */
.mes-modules {
  padding: 100px 0;
  background: var(--color-white);
}

/* MES 设备互联说明 */
.mes-device-section {
  padding: 90px 0;
  background: var(--color-white);
}

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

.device-card {
  padding: 30px;
  background: var(--color-bg-section);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
}

.device-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-blue);
}

.device-card h3 {
  font-size: 1.05rem;
  color: var(--color-primary);
  margin-bottom: 10px;
}

.device-card p {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.8;
}

/* ----- 通用解决方案详情页 ----- */
.solution-hero {
  padding: 140px 0 90px;
  background: linear-gradient(135deg, #081a38 0%, #0a3a6b 55%, #0d5c9c 100%);
  color: var(--color-white);
  position: relative;
  overflow: hidden;
}

.solution-hero::before {
  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: 56px 56px;
}

.solution-hero-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 56px;
  align-items: center;
}

.solution-hero-title {
  font-size: 2.55rem;
  line-height: 1.2;
  font-weight: 800;
  margin-bottom: 20px;
}

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

.solution-hero-desc {
  font-size: 1.05rem;
  color: rgba(255,255,255,0.78);
  line-height: 1.85;
  margin-bottom: 32px;
}

.solution-hero-actions,
.service-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.solution-hero-visual {
  min-height: 330px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid rgba(255,255,255,0.16);
  box-shadow: var(--shadow-lg);
}

.solution-hero-visual img,
.solution-split-img img,
.implementation-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.solution-section {
  padding: 96px 0;
  background: var(--color-white);
}

.solution-section.light {
  background: var(--color-bg-section);
}

.solution-card-grid,
.solution-feature-grid,
.scenario-grid,
.process-card-grid,
.deliver-grid {
  display: grid;
  gap: 24px;
}

.solution-card-grid {
  grid-template-columns: repeat(3, 1fr);
}

.solution-feature-grid,
.scenario-grid,
.process-card-grid,
.deliver-grid {
  grid-template-columns: repeat(4, 1fr);
}

.solution-info-card,
.solution-feature-card,
.scenario-card,
.process-card,
.deliver-item {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 28px;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
}

.solution-section.light .solution-feature-card,
.solution-section.light .deliver-item {
  background: var(--color-white);
}

.solution-info-card:hover,
.solution-feature-card:hover,
.scenario-card:hover,
.process-card:hover,
.deliver-item:hover {
  transform: translateY(-4px);
  border-color: var(--color-blue);
  box-shadow: var(--shadow-md);
}

.solution-info-card h3,
.solution-feature-card h3,
.scenario-card h3,
.process-card h3 {
  color: var(--color-primary);
  font-size: 1.05rem;
  margin-bottom: 10px;
}

.solution-info-card p,
.solution-feature-card p,
.scenario-card p,
.process-card p {
  color: var(--color-text-light);
  font-size: 14px;
  line-height: 1.8;
}

.solution-feature-card span,
.process-card span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 44px;
  height: 32px;
  padding: 0 10px;
  border-radius: 18px;
  background: linear-gradient(135deg, var(--color-blue), var(--color-accent));
  color: var(--color-white);
  font-size: 13px;
  font-weight: 800;
  margin-bottom: 18px;
}

.solution-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}

.solution-split-img {
  min-height: 320px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.solution-check-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.solution-check-list li {
  position: relative;
  padding-left: 32px;
  color: var(--color-text);
  line-height: 1.75;
}

.solution-check-list li::before {
  content: '✓';
  position: absolute;
  left: 0;
  top: 3px;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-blue), var(--color-accent));
  color: var(--color-white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 800;
}

.deliver-item {
  text-align: center;
  font-weight: 700;
  color: var(--color-primary);
}

.solution-cta {
  padding: 90px 0;
  background: var(--color-bg-section);
  text-align: center;
}

/* MES 实施场景图解 */
.mes-implementation-gallery {
  padding: 96px 0;
  background: var(--color-bg-section);
}

.implementation-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 20px;
}

.implementation-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
}

.implementation-card:hover {
  transform: translateY(-4px);
  border-color: var(--color-blue);
  box-shadow: var(--shadow-md);
}

.implementation-card img {
  height: 140px;
}

.implementation-card-body {
  padding: 20px;
}

.implementation-card-body span {
  display: inline-block;
  color: var(--color-blue);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 1px;
  margin-bottom: 8px;
}

.implementation-card-body h3 {
  color: var(--color-primary);
  font-size: 1rem;
  margin-bottom: 8px;
}

.implementation-card-body p {
  color: var(--color-text-light);
  font-size: 13px;
  line-height: 1.7;
}

.modules-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.module-card {
  padding: 28px 20px;
  background: var(--color-bg-section);
  border-radius: var(--radius-md);
  text-align: center;
  transition: all var(--transition);
  border: 1px solid transparent;
  cursor: default;
}

.module-card:hover {
  background: var(--color-white);
  border-color: var(--color-blue);
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}

.module-icon {
  width: 56px;
  height: 56px;
  background: linear-gradient(135deg, var(--color-blue), var(--color-accent));
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  margin: 0 auto 16px;
  transition: transform var(--transition);
}

.module-card:hover .module-icon {
  transform: scale(1.1) rotate(5deg);
}

.module-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.module-desc {
  font-size: 13px;
  color: var(--color-text-light);
  line-height: 1.6;
}

/* MES 架构图 */
.mes-architecture {
  padding: 100px 0;
  background: var(--color-bg-section);
}

.arch-svg-wrap {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--shadow-sm);
  overflow-x: auto;
}

/* MES 实施流程 */
.mes-process {
  padding: 100px 0;
  background: var(--color-white);
}

.process-timeline {
  display: flex;
  gap: 0;
  position: relative;
  margin-top: 20px;
}

.process-timeline::before {
  content: '';
  position: absolute;
  top: 40px;
  left: 10%;
  right: 10%;
  height: 2px;
  background: linear-gradient(90deg, var(--color-blue), var(--color-accent));
}

.process-step {
  flex: 1;
  text-align: center;
  padding: 0 12px;
  position: relative;
}

.step-dot {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-blue), var(--color-accent));
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  font-size: 24px;
  box-shadow: 0 4px 20px rgba(30,111,217,0.35);
  position: relative;
  z-index: 1;
}

.step-num {
  position: absolute;
  top: -4px;
  right: -4px;
  width: 22px;
  height: 22px;
  background: var(--color-accent);
  border-radius: 50%;
  font-size: 11px;
  font-weight: 700;
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
}

.step-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.step-desc {
  font-size: 13px;
  color: var(--color-text-light);
  line-height: 1.6;
}

/* MES 适用行业 */
.mes-industries {
  padding: 100px 0;
  background: var(--color-bg-section);
}

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

.industry-item {
  background: var(--color-white);
  border-radius: var(--radius-md);
  padding: 28px 20px;
  text-align: center;
  border: 1px solid var(--color-border);
  transition: all var(--transition);
}

.industry-item:hover {
  border-color: var(--color-blue);
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}

.industry-icon {
  font-size: 40px;
  margin-bottom: 12px;
}

.industry-name {
  font-size: 15px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 6px;
}

.industry-desc {
  font-size: 13px;
  color: var(--color-text-light);
}

/* MES 客户成效 */
.mes-results {
  padding: 100px 0;
  background: linear-gradient(135deg, var(--color-primary), #0d2d6b);
  color: var(--color-white);
  position: relative;
  overflow: hidden;
}

.mes-results::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 60px 60px;
}

.mes-results .section-title {
  color: var(--color-white);
}

.mes-results .section-desc {
  color: rgba(255,255,255,0.7);
}

.results-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  position: relative;
  z-index: 1;
}

.result-item {
  text-align: center;
  padding: 32px 20px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius-md);
  backdrop-filter: blur(4px);
  transition: all var(--transition);
}

.result-item:hover {
  background: rgba(255,255,255,0.1);
  transform: translateY(-4px);
}

.result-num {
  font-size: 2.8rem;
  font-weight: 800;
  color: var(--color-accent);
  line-height: 1;
  margin-bottom: 8px;
}

.result-label {
  font-size: 14px;
  color: rgba(255,255,255,0.7);
  line-height: 1.5;
}

/* MES CTA */
.mes-cta {
  padding: 100px 0;
  background: var(--color-white);
  text-align: center;
}

.mes-cta .section-desc {
  margin-bottom: 36px;
}

.cta-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
}

/* ----- 关于我们页 ----- */
.about-intro {
  padding: 100px 0;
  background: var(--color-white);
}

.about-intro-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.about-intro-img {
  height: 380px;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, var(--color-bg-light), #c0d8f8);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  font-size: 64px;
  gap: 16px;
  color: var(--color-blue);
  box-shadow: var(--shadow-md);
}

.about-intro-text h2 {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 20px;
}

.about-intro-text p {
  font-size: 15px;
  color: var(--color-text-light);
  line-height: 1.9;
  margin-bottom: 16px;
}

.about-values {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 28px;
}

.value-item {
  display: flex;
  gap: 12px;
  align-items: flex-start;
}

.value-icon {
  width: 40px;
  height: 40px;
  background: var(--color-bg-light);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  flex-shrink: 0;
}

.value-text h4 {
  font-size: 14px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 4px;
}

.value-text p {
  font-size: 13px;
  color: var(--color-text-light);
  line-height: 1.6;
  margin: 0;
}

/* 发展历程 */
.about-history {
  padding: 100px 0;
  background: var(--color-bg-section);
}

.history-timeline {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
}

.history-timeline::before {
  content: '';
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--color-blue), var(--color-accent));
  transform: translateX(-50%);
}

.history-item {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  margin-bottom: 48px;
  position: relative;
}

.history-item::after {
  content: '';
  position: absolute;
  left: 50%;
  top: 8px;
  width: 16px;
  height: 16px;
  background: var(--color-blue);
  border-radius: 50%;
  transform: translateX(-50%);
  border: 3px solid white;
  box-shadow: 0 0 0 3px var(--color-blue);
  z-index: 1;
}

.history-year {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--color-blue);
  text-align: right;
  padding-top: 0;
}

.history-content {
  padding-left: 20px;
}

.history-content h4 {
  font-size: 15px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 6px;
}

.history-content p {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.7;
}

/* 客户 Logo 墙 */
.about-clients {
  padding: 80px 0;
  background: var(--color-white);
}

/* ----- 联系我们页 ----- */
.contact-section {
  padding: 100px 0;
  background: var(--color-white);
}

.contact-inner {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 60px;
}

.contact-info h2 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 16px;
}

.contact-info > p {
  font-size: 15px;
  color: var(--color-text-light);
  line-height: 1.8;
  margin-bottom: 32px;
}

.contact-details {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

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

.contact-detail-icon {
  width: 44px;
  height: 44px;
  background: var(--color-bg-light);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  flex-shrink: 0;
}

.contact-detail-text h4 {
  font-size: 14px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 4px;
}

.contact-detail-text p {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.6;
}

/* 联系表单 */
.contact-form-wrap {
  background: var(--color-bg-section);
  border-radius: var(--radius-lg);
  padding: 40px;
}

.contact-form-wrap h3 {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 28px;
}

.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(--color-primary);
  margin-bottom: 8px;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-family: var(--font-base);
  color: var(--color-text);
  background: var(--color-white);
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-color: var(--color-blue);
  box-shadow: 0 0 0 3px rgba(30, 111, 217, 0.1);
}

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

.text-link-btn {
  padding: 0;
  color: var(--color-blue);
  font-size: inherit;
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.text-link-btn:hover {
  color: var(--color-accent);
}

/* 地图占位 */
.contact-map {
  padding: 0 0 80px;
  background: var(--color-white);
}

.map-placeholder {
  height: 300px;
  background: linear-gradient(135deg, var(--color-bg-light), #d0e8ff);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 12px;
  color: var(--color-blue);
  font-size: 15px;
  border: 2px dashed var(--color-border);
}

.map-placeholder .icon {
  font-size: 48px;
  opacity: 0.5;
}

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

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

.fade-in-left {
  opacity: 0;
  transform: translateX(-30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

.fade-in-right {
  opacity: 0;
  transform: translateX(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* 动画延迟 */
.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }
.delay-4 { transition-delay: 0.4s; }

/* ----- 微信咨询弹窗 ----- */
.wechat-modal {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition);
}

.wechat-modal.open {
  opacity: 1;
  pointer-events: auto;
}

.wechat-modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(4, 14, 31, 0.72);
  backdrop-filter: blur(8px);
}

.wechat-modal-dialog {
  position: relative;
  width: min(100%, 460px);
  background: var(--color-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  transform: translateY(16px) scale(0.98);
  transition: transform var(--transition);
}

.wechat-modal.open .wechat-modal-dialog {
  transform: translateY(0) scale(1);
}

.wechat-modal-head {
  padding: 28px;
  color: var(--color-white);
  background: linear-gradient(135deg, var(--color-primary), var(--color-blue));
  position: relative;
  overflow: hidden;
}

.wechat-modal-head::after {
  content: '';
  position: absolute;
  right: -60px;
  top: -60px;
  width: 180px;
  height: 180px;
  border-radius: 50%;
  background: rgba(0, 201, 255, 0.22);
}

.wechat-modal-title {
  font-size: 1.35rem;
  font-weight: 800;
  margin-bottom: 8px;
  position: relative;
  z-index: 1;
}

.wechat-modal-desc {
  font-size: 14px;
  color: rgba(255,255,255,0.78);
  line-height: 1.7;
  position: relative;
  z-index: 1;
}

.wechat-modal-close {
  position: absolute;
  top: 14px;
  right: 14px;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  color: var(--color-white);
  background: rgba(255,255,255,0.12);
  font-size: 20px;
  z-index: 2;
}

.wechat-modal-body {
  padding: 28px;
}

.wechat-contact-card {
  padding: 22px;
  border-radius: var(--radius-md);
  background: var(--color-bg-section);
  border: 1px solid var(--color-border);
  text-align: center;
}

.wechat-manager {
  font-size: 15px;
  color: var(--color-text-light);
  margin-bottom: 8px;
}

.wechat-number {
  font-size: 2rem;
  line-height: 1;
  font-weight: 800;
  letter-spacing: 1px;
  color: var(--color-primary);
  margin-bottom: 12px;
}

.wechat-tags {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
  margin: 20px 0;
}

.wechat-tags span {
  font-size: 12px;
  color: var(--color-blue);
  background: var(--color-bg-light);
  border: 1px solid var(--color-border);
  border-radius: 20px;
  padding: 4px 10px;
}

.wechat-modal-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.wechat-copy-tip {
  min-height: 18px;
  margin-top: 12px;
  color: #10b981;
  font-size: 13px;
  text-align: center;
}