/* 基础重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* 头部容器 */
.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 5%;
    background-color: #ffffff;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

/* Logo样式 */
.logo {
    width: 180px;
    height: auto;
    transition: opacity 0.3s ease;
}

.logo:hover {
    opacity: 0.9;
}

/* 导航栏容器 */
.nav-bar {
    display: flex;
    align-items: center;
}

/* 导航列表 */
.nav-list {
    display: flex;
    gap: 40px;
    list-style: none;
}

/* 导航项样式 */
.nav-item {
    position: relative;
    padding: 5px 0;
}

/* 导航链接样式 */
.nav-link {
    text-decoration: none;
    color: #333;
    font-family: 'Segoe UI', sans-serif;
    font-size: 1.1rem;
    transition: color 0.3s ease;
    padding: 5px 10px;
    border-radius: 4px;
}

.nav-link:hover {
    color: #007bff;
    background-color: rgba(0,123,255,0.1);
}

/* 活动状态样式 */
.nav-link.active {
    color: #007bff;
    font-weight: 500;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .header-container {
        flex-direction: column;
        padding: 20px;
    }

    .logo {
        margin-bottom: 15px;
    }

    .nav-list {
        flex-direction: column;
        gap: 15px;
        text-align: center;
    }
}
/* 公司头图 */
.company-hero {
    height: 400px;
    background: linear-gradient(to bottom, rgba(13,71,161,0.9), rgba(135,206,235,0.9)), 
                url('company-bg.jpg') center/cover;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-top: 80px; /* 新增顶部间距 */
    margin-bottom: 60px;
    position: relative;
}

/* 增加渐变过渡效果 */
.company-hero::before {
    content: '';
    position: absolute;
    top: -80px;
    left: 0;
    width: 100%;
    height: 80px;
    background: linear-gradient(to bottom, 
        transparent 0%,
        rgba(13,71,161,0.1) 70%,
        rgba(13,71,161,0.2) 100%
    );
    pointer-events: none;
}

.hero-overlay {
    text-align: center;
    color: white;
}

.hero-overlay h1 {
    font-size: 2.8em;
    margin-bottom: 20px;
    text-shadow: 0 2px 4px rgba(0,0,0,0.2);
}

.hero-subtitle {
    font-size: 1.4em;
    letter-spacing: 2px;
}

/* 企业概览 */
.profile-card {
    background: white;
    border-radius: 12px;
    padding: 40px;
    box-shadow: 0 8px 30px rgba(0,0,0,0.1);
    position: relative;
    max-width: 800px;
    margin: -60px auto 50px;
}

.timeline-marker {
    width: 80px;
    height: 80px;
    background: #0d47a1;
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5em;
    position: absolute;
    top: -40px;
    left: 50%;
    transform: translateX(-50%);
}

.tech-tags {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
    margin-top: 25px;
}

.tech-tags li {
    background: rgba(13,71,161,0.1);
    color: #0d47a1;
    padding: 8px 20px;
    border-radius: 20px;
    font-size: 0.95em;
}

/* 业务架构 */
.architecture {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
    padding: 40px 0;
}

.arch-diagram {
    position: relative;
    height: 300px;
}

.core-circle {
    width: 200px;
    height: 200px;
    background: #0d47a1;
    border-radius: 50%;
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2em;
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
}



@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* 价值体系 */
.value-system {
    display: grid;
    grid-template-columns: repeat(2, 600px); /* 强制双列500px */
    justify-content: center;
    gap: 180px;
    margin: 40px auto;
    max-width: 1060px; /* (500x2)+30间隙 */
}

.value-card {
    background: #fff;
    border-radius: 8px;
    padding: 35px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08); /* 图片中的柔和阴影 */
    transition: transform 0.3s;
}

.value-card h4 {
    margin: 0 0 25px 0;
    font-size: 1.3em;
    color: #333;
    position: relative;
    padding-left: 40px; /* 图标间距 */
}

.value-icon {
    font-size: 1.5em;
    position: absolute;
    left: 0;
    top: -2px;
}

.value-card ul {
    padding-left: 40px; /* 对齐标题文字 */
    list-style: none; /* 移除默认圆点 */
}

.value-card li {
    font-size: 1em;
    line-height: 1.6;
    margin-bottom: 12px;
    position: relative;
}

.value-card li:before { /* 自定义列表点 */
    content: "·";
    position: absolute;
    left: -15px;
    color: #666;
}

@media (max-width: 1080px) { /* 响应式处理 */
    .value-system {
        grid-template-columns: 1fr;
        max-width: 500px;
    }
}

/* 发展理念 */
.company-motto {
    text-align: center;
    font-size: 1.6em;
    color: #2c3e50;
    margin: 60px auto;
    padding: 40px 0;
    border-top: 2px solid #eee;
    border-bottom: 2px solid #eee;
    max-width: 800px;
}

.company-motto footer {
    font-size: 0.6em;
    color: #7f8c8d;
    margin-top: 20px;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .architecture {
        grid-template-columns: 1fr;
    }

    .core-circle {
        width: 150px;
        height: 150px;
    }

    .ring {
        width: 250px;
        height: 250px;
    }
}

.orbit-ring {
    position: absolute;
    width: 300px;
    height: 300px;
    border: 2px dashed rgba(13,71,161,0.3);
    border-radius: 50%;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    animation: rotate 30s linear infinite; /* 父容器旋转动画 */
}

.orbit-item {
    position: absolute;
    width: 80px;
    height: 80px;
    background: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    color: #2c3e50;
    font-weight: 500;
    /* 每个元素初始定位 */
    transform: rotate(0deg) translate(150px) rotate(0deg);
    /* 动画同步父容器速度并反向旋转 */
    animation: reverseRotate 30s linear infinite;
}

/* 分别设置初始角度 */
.orbit-item:nth-child(1) { transform: rotate(0deg) translate(150px) rotate(0deg); }
.orbit-item:nth-child(2) { transform: rotate(120deg) translate(150px) rotate(-120deg); }
.orbit-item:nth-child(3) { transform: rotate(240deg) translate(150px) rotate(-240deg); }

@keyframes rotate {
    from { transform: translate(-50%, -50%) rotate(0deg); }
    to { transform: translate(-50%, -50%) rotate(360deg); }
}

/* 修正反向动画：基于每个元素的初始角度 */
@keyframes reverseRotate {
    from { transform: rotate(var(--start-rotate)) translate(80px) rotate(var(--self-rotate)); }
    to { transform: rotate(calc(var(--start-rotate) - 360deg)) translate(80px) rotate(calc(var(--self-rotate) + 360deg)); }
}

/* 通过CSS变量设置每个元素的起始角度 */
.orbit-item:nth-child(1) { --start-rotate: 0deg; --self-rotate: 0deg; }
.orbit-item:nth-child(2) { --start-rotate: 120deg; --self-rotate: -120deg; }
.orbit-item:nth-child(3) { --start-rotate: 240deg; --self-rotate: -240deg; }

.core-circle {
    width: 180px;
    height: 180px;
    z-index: 2;
}


/* 公司定位样式 */
.hero {
    background: linear-gradient(to bottom, #0d47a1, #87CEEB);
    color: white;
    padding: 100px 0; /* 调整整体间距 */
    margin-top: 60px; /* 新增与上方内容的间隔 */
    text-align: center;
    position: relative;
}

/* 增加间隔过渡效果 */
.hero::before {
    content: '';
    position: absolute;
    top: -60px;
    left: 0;
    width: 100%;
    height: 60px;
    background: linear-gradient(to bottom, transparent 0%, rgba(13,71,161,0.1) 100%);
}

.hero h1 {
	font-size: 2.8em;
	margin-bottom: 20px;
}

.hero .subtitle {
	font-size: 1.2em;
	opacity: 0.9;
}

/* 功能卡片容器 */
.function-container {
	max-width: 1200px;
	margin: 50px auto;
	padding: 0 20px;
}

/* 双列卡片布局 */
.card-wrapper {
	display: grid;
	grid-template-columns: repeat(2, 1fr);
	gap: 30px;
}

/* 卡片样式 */
.service-card {
	background: white;
	border-radius: 12px;
	padding: 30px;
	box-shadow: 0 5px 25px rgba(0,0,0,0.08);
	transition: transform 0.3s;
}

.service-card:hover {
	transform: translateY(-5px);
}

.card-icon {
	font-size: 2.5em;
	margin-bottom: 20px;
	color: #0d47a1;
}

.card-title {
	color: #2c3e50;
	margin-bottom: 15px;
	font-size: 1.4em;
}

.card-content {
	color: #555;
	line-height: 1.8;
}

.feature-list {
	list-style: none;
	padding-left: 0;
	margin: 15px 0;
}

.feature-list li {
	padding: 8px 0;
	position: relative;
	padding-left: 25px;
}

.feature-list li::before {
	content: "✔";
	color: #0d47a1;
	position: absolute;
	left: 0;
}

/* 响应式设计 */
@media (max-width: 768px) {
	.card-wrapper {
		grid-template-columns: 1fr;
	}
	
	.hero h1 {
		font-size: 2em;
	}
}


/* 底部背景图区块 */
.footerPng {
  height: 200px;
  background: linear-gradient(135deg, 
      #0d47a1 20%,  /* 品牌主色深蓝 */
      #2a3a6e 40%,  /* 午夜蓝 */
      #6c5b7b 80%,  /* 蓝紫色 */
      #c06c84       /* 浅品红 */
	);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  margin-top: 80px;
  /* 添加微纹理提升质感 */
  background-image: 
    radial-gradient(circle at 90% 10%, rgba(255,255,255,0.1) 10%, transparent 30%),
    linear-gradient(135deg, #0d47a1, #6c5b7b);
}

/* 文字增强可读性 */
.footerPng-text {
  color: #fff;
  font-size: 2.2rem;
  letter-spacing: 3px;
  text-shadow: 1px 1px 4px rgba(0,0,0,0.3); /* 添加文字阴影 */
  font-family: 'Microsoft YaHei', sans-serif;
  animation: fadeInUp 0.8s ease;
}

/* 版权信息 */
.footer {
  background: #f8f9fa;
  padding: 25px 0;
  font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
}

.copyright {
  text-align: center;
  color: #666;
  font-size: 0.9rem;
  line-height: 1.6;
}

.icp-link {
  color: #666;
  text-decoration: none;
  transition: color 0.3s ease;
  margin-left: 15px;
}

.icp-link:hover {
  color: #0d47a1;
  text-decoration: underline;
}

/* 动画效果 */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* 响应式适配 */
@media (max-width: 768px) {
  .footerPng {
    height: 150px;
    margin-top: 50px;
  }
  
  .footerPng-text {
    font-size: 1.5rem;
    padding: 0 20px;
    text-align: center;
  }
  
  .copyright {
    font-size: 0.8rem;
  }
}