/**
 * 烽云官网首页样式
 * 设计风格：扁平化浅色科技风
 * 主色调：#1a72b3
 * 作者：Bruce
 * 创建时间：2026-02-25
 */

/* ==================== CSS 变量定义 ==================== */
:root {
    /* 主色调系统 */
    --primary-color: #1a72b3;          /* 主色 - 科技蓝 */
    --primary-light: #3d8bc7;          /* 主色浅色 */
    --primary-dark: #145a8f;           /* 主色深色 */
    --primary-bg: #f0f9ff;             /* 主色背景 */
    
    /* 辅助色 */
    --secondary-color: #10b981;        /* 成功/环保绿 */
    --accent-color: #f59e0b;           /* 强调/警示橙 */
    --danger-color: #ef4444;           /* 危险/错误红 */
    
    /* 背景色系统 */
    --bg-white: #ffffff;               /* 纯白背景 */
    --bg-light: #f8fafc;               /* 浅灰背景 */
    --bg-section-1: #ffffff;           /* 板块1背景 */
    --bg-section-2: #f0f9ff;           /* 板块2背景 - 浅蓝 */
    --bg-section-3: #ffffff;           /* 板块3背景 */
    --bg-section-4: #fafafa;           /* 板块4背景 - 浅灰 */
    --bg-section-5: #ffffff;           /* 板块5背景 */
    --bg-section-6: #f0f9ff;           /* 板块6背景 - 浅蓝 */
    
    /* 文字颜色 */
    --text-primary: #1e293b;           /* 主要文字 */
    --text-secondary: #64748b;         /* 次要文字 */
    --text-muted: #94a3b8;             /* 淡化文字 */
    --text-light: #ffffff;             /* 浅色文字 */
    
    /* 边框颜色 */
    --border-color: #e2e8f0;           /* 默认边框 */
    --border-light: #f1f5f9;           /* 浅色边框 */
    
    /* 阴影层级 */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    
    /* 圆角 */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-2xl: 24px;
    
    /* 过渡动画 */
    --transition-fast: 150ms ease;
    --transition-normal: 200ms ease;
    --transition-slow: 300ms ease;
    
    /* 容器宽度 */
    --container-max: 1440px;
    --container-padding: 20px;
}

/* ==================== 基础样式重置 ==================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', 'PingFang SC', 'Microsoft YaHei', sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ==================== 通用容器 ==================== */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

/* ==================== 导航栏样式 ==================== */
.nav-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    width: 100%;
    background: rgba(255, 255, 255, 1);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
    transition: all var(--transition-normal);
}

.nav-header.scrolled {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: var(--shadow-md);
}

.nav-container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

/* Logo 样式 */
/* 作者：Bruce */
/* Logo区域样式 - 优化版 */
.nav-logo {
    display: flex;
    align-items: center;
    gap: 14px;
    text-decoration: none;
    cursor: pointer;
    padding: 6px 0;
    transition: transform var(--transition-normal);
}

.nav-logo:hover {
    transform: scale(1.02);
}

/* Logo图片 - 增大尺寸 */
.nav-logo img {
    height: 42px;
    width: auto;
    object-fit: contain;
    filter: drop-shadow(0 2px 4px rgba(26, 114, 179, 0.15));
    transition: filter var(--transition-normal);
}

.nav-logo:hover img {
    filter: drop-shadow(0 4px 8px rgba(26, 114, 179, 0.25));
}

/* Logo标题样式 - 渐变文字效果 */
/* 作者：Bruce */
/* Logo文字容器 - 紧凑布局 */
.nav-logo-text {
    display: flex;
    flex-direction: column;
    gap: 0;
    line-height: 1.2;
}

.nav-logo-title {
    font-size: 22px;
    font-weight: 800;
    line-height: 1.3;
    letter-spacing: 0.5px;
    /* 渐变文字效果 */
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 50%, #0d4a75 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: 0 2px 4px rgba(26, 114, 179, 0.1);
}

.nav-logo-subtitle {
    font-size: 11px;
    color: var(--text-secondary);
    letter-spacing: 2px;
    text-transform: uppercase;
    font-weight: 500;
}

/* 导航菜单 */
.nav-menu {
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-item {
    position: relative;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 8px 16px;
    font-size: 15px;
    font-weight: 500;
    color: var(--text-primary);
    text-decoration: none;
    border-radius: var(--radius-md);
    transition: all var(--transition-normal);
    cursor: pointer;
}

.nav-link:hover {
    color: var(--primary-color);
    background: var(--primary-bg);
}

.nav-item.active .nav-link {
    color: var(--primary-color);
    background: var(--primary-bg);
}

/* 下拉菜单 */
.nav-dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    width: max-content;
    padding-top: 8px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all var(--transition-normal);
    z-index: 100;
}

.nav-item:hover .nav-dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-item {
    display: block;
    padding: 10px 16px;
    font-size: 14px;
    color: var(--text-primary);
    text-decoration: none;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    cursor: pointer;
}

.dropdown-item:hover {
    background: var(--primary-bg);
    color: var(--primary-color);
}

/* ==================== 多级下拉菜单样式 ==================== */
.dropdown-inner {
    display: flex;
    min-width: 0;
    max-width: 600px;
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    overflow: hidden;
}

/* 有三级菜单时的宽度设置 */
.dropdown-inner:has(.dropdown-level3) {
    min-width: 600px;
}

/* 左侧二级菜单 - 恢复原来简洁样式 */
.dropdown-level2 {
    flex: 0 0 180px;
    padding: 8px;
    background: var(--bg-light);
}

.dropdown-level2 .dropdown-item {
    display: block;
    padding: 10px 16px;
    font-size: 14px;
    color: var(--text-primary);
    text-decoration: none;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    cursor: pointer;
}

.dropdown-level2 .dropdown-item:hover {
    background: var(--primary-bg);
    color: var(--primary-color);
}

/* 右侧三级菜单容器 - 平铺展示 */
.dropdown-level3 {
    flex: 1;
    min-width: 600px;
    padding: 20px;
    background: var(--bg-white);
}

/* 三级菜单网格布局 */
.mega-menu-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 20px;
}

.submenu-panel {
    display: flex;
    flex-direction: column;
}

.submenu-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    padding-bottom: 8px;
    margin-bottom: 12px;
    border-bottom: 1px solid var(--border-color);
}

.submenu-panel {
    display: flex;
    flex-direction: column;
}

.submenu-panel:not(:first-child) {
    margin-top: 16px;
}

.submenu-list {
    display: flex;
    flex-wrap: nowrap;
    gap: 0;
}

.submenu-item {
    display: inline-block;
    padding: 4px 0;
    font-size: 13px;
    color: var(--text-secondary);
    text-decoration: none;
    transition: all var(--transition-fast);
    cursor: pointer;
    white-space: nowrap;
}

.submenu-item:hover {
    color: var(--primary-color);
}

.submenu-item:not(:last-child)::after {
    content: "|";
    margin: 0 12px;
    color: var(--border-color);
}

/* 联系电话 */
.nav-phone {
    font-size: 18px;
    font-weight: 600;
    color: #b81818;
    letter-spacing: 0.5px;
    padding: 8px 12px;
    font-style: italic;
    display: flex;
    align-items: center;
    gap: 6px;
}

.nav-phone .phone-icon {
    flex-shrink: 0;
    color: #b81818;
    width: 18px;
    height: 18px;
    margin-top: -2px;
}

.nav-phone span {
    display: inline-block;
    transform: translateY(0);
}

/* 移动端菜单按钮 */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 30px;
    height: 30px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
}

.mobile-menu-btn span {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: all var(--transition-normal);
}

/* ==================== Banner 幻灯片 ==================== */
.banner-section {
    position: relative;
    width: 100%;
    height: 600px;
    overflow: hidden;
    margin-top: 70px;
}

.banner-slider {
    position: relative;
    width: 100%;
    height: 100%;
}

.banner-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 0.6s ease-in-out;
}

.banner-slide.active {
    opacity: 1;
}

.banner-slide img {
    width: 100%;
    height: 110%;
    object-fit: cover;
    transform: scale(1.05); /* 微放大防止边缘空白 */
    transition: transform 6s ease; /* 慢速缩放动画 */
}

.banner-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    /* background: linear-gradient(135deg, rgba(8, 135, 231, 0.4) 0%, rgba(8, 135, 231, 0.2) 100%); */
    display: flex;
    align-items: center;
    justify-content: center;
}

.banner-content {
    text-align: center;
    color: var(--text-light);
    max-width: 900px;
    padding: 0 var(--container-padding);
}

.banner-title {
    font-size: 48px;
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: 20px;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.banner-subtitle {
    font-size: 20px;
    font-weight: 400;
    line-height: 1.6;
    opacity: 0.95;
    margin-bottom: 32px;
}

.banner-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 32px;
    font-size: 16px;
    font-weight: 600;
    color: var(--primary-color);
    background: var(--bg-white);
    border: none;
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-normal);
    text-decoration: none;
}

.banner-btn:hover {
    background: var(--primary-dark);
    color: var(--text-light);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* 幻灯片指示器 */
.banner-indicators {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 12px;
    z-index: 10;
}

.banner-indicator {
    width: 40px;
    height: 4px;
    background: rgba(255, 255, 255, 0.4);
    border: none;
    border-radius: 2px;
    cursor: pointer;
    transition: all var(--transition-normal);
}

.banner-indicator.active,
.banner-indicator:hover {
    background: var(--bg-white);
}

/* ==================== 板块通用样式 ==================== */
.section {
    width: 100%;
    padding: 80px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 50px;
}

.section-tag {
    display: inline-block;
    padding: 6px 16px;
    font-size: 12px;
    font-weight: 600;
    color: var(--primary-color);
    background: var(--primary-bg);
    border-radius: 20px;
    letter-spacing: 1px;
    text-transform: uppercase;
    margin-bottom: 16px;
}

.section-title {
    font-size: 36px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 16px;
    line-height: 1.3;
}

.section-desc {
    font-size: 16px;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.6;
}

/* ==================== 公司简介板块 ==================== */
.about-section {
    background: var(--bg-section-1);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: start;
}

.about-text h3 {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 16px;
    line-height: 1.4;
}

.about-text p {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 12px;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    margin-top: 24px;
}

.stat-item {
    text-align: center;
    padding: 16px 12px;
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
}

.stat-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.stat-number {
    font-size: 32px;
    font-weight: 700;
    color: var(--primary-color);
    line-height: 1;
    margin-bottom: 6px;
}

.stat-label {
    font-size: 13px;
    color: var(--text-secondary);
}

/* 了解更多按钮 */
.about-action {
    margin-top: 24px;
}

.btn-about-more {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 32px;
    font-size: 15px;
    font-weight: 600;
    color: var(--text-light);
    background: var(--primary-color);
    border: none;
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-normal);
    text-decoration: none;
    box-shadow: var(--shadow-md);
}

.btn-about-more:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-about-more svg {
    width: 18px;
    height: 18px;
    transition: transform var(--transition-fast);
}

.btn-about-more:hover svg {
    transform: translateX(4px);
}

.about-image {
    position: relative;
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.about-image img {
    width: 100%;
    height: auto;
    display: block;
}

.about-image::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(8, 135, 231, 0.1) 0%, transparent 100%);
    pointer-events: none;
}

/* ==================== 核心产品板块 ==================== */
.products-section {
    background: var(--bg-section-2);
    padding: 80px 0;
}

/* 产品板块头部 */
.products-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 40px;
    flex-wrap: wrap;
    gap: 24px;
}

.products-title {
    font-size: 36px;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
}

/* 大类标签切换 - 酷炫发光滑块效果 */
.products-tabs {
    display: flex;
    gap: 4px;
    background: linear-gradient(145deg, #f0f4f8 0%, #e8eef3 100%);
    padding: 6px;
    border-radius: 50px;
    box-shadow: 
        inset 0 2px 4px rgba(0, 0, 0, 0.06),
        0 1px 2px rgba(255, 255, 255, 0.8);
    position: relative;
    border: 1px solid rgba(26, 114, 179, 0.1);
}

/* 滑块背景 - 使用CSS变量控制位置 */
.products-tabs::before {
    content: '';
    position: absolute;
    left: var(--slider-left, 6px);
    top: 6px;
    width: var(--slider-width, auto);
    height: calc(100% - 12px);
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 50%, var(--primary-color) 100%);
    border-radius: 40px;
    transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
    box-shadow: 
        0 4px 15px rgba(26, 114, 179, 0.4),
        0 0 30px rgba(26, 114, 179, 0.2),
        inset 0 1px 0 rgba(255, 255, 255, 0.3);
    z-index: 1;
}

/* 外发光效果 */
.products-tabs::after {
    content: '';
    position: absolute;
    inset: -2px;
    border-radius: 52px;
    background: linear-gradient(135deg, rgba(26, 114, 179, 0.3) 0%, rgba(61, 139, 199, 0.1) 50%, rgba(26, 114, 179, 0.3) 100%);
    z-index: -1;
    filter: blur(8px);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.products-tabs:hover::after {
    opacity: 1;
}

.tab-btn {
    padding: 12px 28px;
    font-size: 15px;
    font-weight: 500;
    color: var(--text-secondary);
    background: transparent;
    border: none;
    border-radius: 40px;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
    position: relative;
    z-index: 2;
    white-space: nowrap;
}

.tab-btn:hover {
    color: var(--primary-color);
    transform: translateY(-1px);
}

.tab-btn.active {
    color: var(--text-light);
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
    transform: scale(1.02);
}

/* 选中状态额外发光效果 */
.tab-btn.active::before {
    content: '';
    position: absolute;
    inset: -2px;
    border-radius: 42px;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.4) 0%, transparent 50%, rgba(255, 255, 255, 0.2) 100%);
    z-index: -1;
    filter: blur(4px);
}

/* 点击波纹效果 */
.tab-btn:active {
    transform: scale(0.96);
}

/* 子产品标签 */
.sub-tabs {
    display: flex;
    justify-content: center;
    gap: 40px;
    margin-bottom: 32px;
    padding: 0 20px;
}

.sub-tab-btn {
    padding: 8px 0;
    font-size: 15px;
    font-weight: 500;
    color: var(--text-secondary);
    background: transparent;
    border: none;
    cursor: pointer;
    transition: all var(--transition-normal);
    position: relative;
}

.sub-tab-btn:hover {
    color: var(--primary-color);
}

.sub-tab-btn.active {
    color: var(--primary-color);
}

.sub-tab-btn.active::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--primary-color);
    border-radius: 1px;
}

/* 大类内容区域 */
.category-content {
    display: none;
    animation: fadeIn 0.4s ease-in-out;
}

.category-content.active {
    display: block;
}

/* 产品详情区域 */
.product-detail {
    display: none;
    animation: fadeIn 0.3s ease-in-out;
}

.product-detail.active {
    display: block;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 产品展示卡片 */
.product-showcase {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    background: var(--bg-white);
    border-radius: var(--radius-xl);
    padding: 48px;
    box-shadow: var(--shadow-md);
}

.product-showcase-left {
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.product-category-label {
    display: inline-block;
    font-size: 13px;
    font-weight: 600;
    color: var(--primary-color);
    background: var(--primary-bg);
    padding: 6px 14px;
    border-radius: 20px;
    margin-bottom: 16px;
    width: fit-content;
}

.product-showcase-title {
    font-size: 32px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 24px;
    line-height: 1.3;
}

.product-features {
    list-style: none;
    margin: 0 0 32px 0;
    padding: 0;
}

.product-features li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    margin-bottom: 16px;
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.6;
}

.feature-check {
    width: 22px;
    height: 22px;
    flex-shrink: 0;
    stroke: var(--primary-color);
    margin-top: 2px;
}

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

.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 32px;
    font-size: 15px;
    font-weight: 600;
    color: var(--text-light);
    background: var(--primary-color);
    border: none;
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-normal);
    text-decoration: none;
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 32px;
    font-size: 15px;
    font-weight: 600;
    color: var(--primary-color);
    background: var(--bg-white);
    border: 2px solid var(--primary-color);
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-normal);
    text-decoration: none;
}

.btn-secondary:hover {
    background: var(--primary-bg);
    transform: translateY(-2px);
}

.btn-primary::after,
.btn-secondary::after {
    content: '→';
    font-size: 18px;
    transition: transform var(--transition-fast);
}

.btn-primary:hover::after,
.btn-secondary:hover::after {
    transform: translateX(4px);
}

.product-showcase-right {
    display: flex;
    align-items: center;
    justify-content: center;
}

.product-showcase-right img {
    width: 100%;
    max-width: 600px;
    height: auto;
    border-radius: var(--radius-lg);
}

/* ==================== 资源分布板块 ==================== */
.resources-section {
    background: var(--bg-section-3);
}

/* 地图和统计区域容器 */
.resources-content {
    display: flex;
    align-items: center;
    gap: 40px;
    margin-top: 40px;
}

.resources-map {
    position: relative;
    width: 1000px;
    height: 765px;
    flex-shrink: 0;
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-color);
}

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

.resource-stats {
    display: flex;
    flex-direction: column;
    gap: 16px;
    width: 160px;
    flex-shrink: 0;
}

.resource-stat {
    text-align: center;
    padding: 20px 12px;
    background: var(--bg-light);
    border-radius: var(--radius-lg);
    transition: all var(--transition-normal);
    aspect-ratio: 1 / 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.resource-stat:hover {
    background: var(--primary-bg);
    transform: translateY(-4px);
}

.resource-stat-icon {
    width: 44px;
    height: 44px;
    margin: 0 auto 12px;
    background: var(--primary-color);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.resource-stat-icon svg {
    width: 24px;
    height: 24px;
    stroke: var(--text-light);
}

.resource-stat-value {
    font-size: 28px;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 6px;
    line-height: 1.2;
}

.resource-stat-label {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.4;
}

/* ==================== 新闻中心板块 ==================== */
.news-section {
    background: var(--bg-section-4);
}

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

.news-card {
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
    cursor: pointer;
}

.news-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.news-image {
    position: relative;
    width: 100%;
    height: 200px;
    overflow: hidden;
}

.news-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.news-card:hover .news-image img {
    transform: scale(1.05);
}

.news-date {
    position: absolute;
    top: 16px;
    left: 16px;
    background: var(--primary-color);
    color: var(--text-light);
    padding: 8px 12px;
    border-radius: var(--radius-md);
    text-align: center;
}

.news-date .day {
    display: block;
    font-size: 24px;
    font-weight: 700;
    line-height: 1;
}

.news-date .month {
    display: block;
    font-size: 12px;
    opacity: 0.9;
}

.news-content {
    padding: 24px;
}

.news-category {
    display: inline-block;
    padding: 4px 12px;
    font-size: 12px;
    font-weight: 500;
    color: var(--primary-color);
    background: var(--primary-bg);
    border-radius: 12px;
    margin-bottom: 12px;
}

.news-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 12px;
    line-height: 1.4;
}

.news-card > a {
    text-decoration: none;
}

.news-title span {
    color: inherit;
}

.news-excerpt {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 16px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 14px;
    font-weight: 500;
    color: var(--primary-color);
    text-decoration: none;
    transition: all var(--transition-fast);
}

.news-link:hover {
    gap: 10px;
}

.news-link svg {
    width: 16px;
    height: 16px;
    stroke: currentColor;
}

/* ==================== 合作伙伴板块 ==================== */
.partners-section {
    background: var(--bg-section-5);
    overflow: hidden;
}

/* 合作伙伴滚动容器 */
.partners-scroll-container {
    display: flex;
    flex-direction: column;
    gap: 24px;
    margin-top: 40px;
}

/* 每一行容器 */
.partners-row {
    width: 100%;
    overflow: hidden;
    position: relative;
}

/* 滚动轨道 */
.partners-track {
    display: flex;
    gap: 24px;
    width: fit-content;
    will-change: transform;
}

/* 向左滚动动画 */
.scroll-left {
    animation: scroll-left 30s linear infinite;
}

/* 向右滚动动画 */
.scroll-right {
    animation: scroll-right 30s linear infinite;
}

/* 向左滚动关键帧 */
@keyframes scroll-left {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(-50%);
    }
}

/* 向右滚动关键帧 */
@keyframes scroll-right {
    0% {
        transform: translateX(-50%);
    }
    100% {
        transform: translateX(0);
    }
}

/* 合作伙伴项样式 - 每行显示5个 */
.partner-item {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px 24px;
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-light);
    flex-shrink: 0;
    width: calc((1200px - 96px) / 5);
    height: 90px;
    overflow: hidden; /* 防止放大后的图片溢出容器 */
}

.partner-item:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--primary-color);
    transform: translateY(-4px);
}

.partner-item img {
    max-width: 100%;
    max-height: 50px;
    object-fit: contain;
    transition: all var(--transition-normal);
    transform: scale(1.2); /* 图片放大1.2倍，容器大小不变 */
}

/* 鼠标悬停时暂停滚动 */
.partners-row:hover .partners-track {
    animation-play-state: paused;
}

/* ==================== 页脚样式 ==================== */
.footer {
    background: #1e293b;
    color: var(--text-light);
    padding: 60px 0 0;
}

.footer-content {
    display: grid;
    grid-template-columns: 1.2fr 2fr 0.7fr 0.9fr;
    gap: 40px;
    padding-bottom: 40px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

/* 产品服务宽列 */
.footer-column-wide {
    grid-column: span 1;
}

/* 产品服务网格布局 */
.footer-product-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.footer-product-category h5 {
    font-size: 14px;
    font-weight: 600;
    color: var(--primary-light);
    margin-bottom: 12px;
    padding-bottom: 8px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-product-links {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.footer-product-links .footer-link {
    font-size: 13px;
}

.footer-brand {
    max-width: 300px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
}

.footer-logo img {
    height: 40px;
    width: auto;
}

.footer-logo-text {
    font-size: 16px;
    font-weight: 500;
    color: var(--text-light);
}

.footer-desc {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.8;
    margin-bottom: 20px;
}

.footer-contact {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-contact-item {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
}

.footer-contact-item svg {
    width: 20px;
    height: 20px;
    stroke: var(--primary-light);
}

/* 联系方式链接样式 */
.footer-contact-item[href] {
    text-decoration: none;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.footer-contact-item[href]:hover {
    color: var(--primary-light);
}

.footer-contact-item[href]:active {
    opacity: 0.8;
}

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

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-link {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.footer-link:hover {
    color: var(--primary-light);
}

.footer-bottom {
    padding: 20px 0;
    text-align: center;
}

.footer-copyright {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.5);
}

/* ==================== 响应式设计 ==================== */
/* 平板端 (768px - 1199px) */
@media screen and (max-width: 1199px) {
    .nav-menu {
        display: none;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .banner-section {
        height: 400px;
    }
    
    .banner-title {
        font-size: 40px;
    }
    
    .about-content {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    
    .products-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .resources-content {
        flex-direction: column;
        gap: 30px;
    }
    
    .resources-map {
        width: 100%;
        max-width: 1000px;
        height: auto;
        aspect-ratio: 1000 / 765;
    }
    
    .resource-stats {
        flex-direction: row;
        flex-wrap: wrap;
        width: 100%;
        justify-content: center;
    }
    
    .resource-stat {
        flex: 0 0 calc(50% - 12px);
        max-width: 200px;
    }
    
    .news-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .partner-item {
        width: calc((100vw - 80px) / 4);
        padding: 16px 20px;
        height: 80px;
    }
    
    .footer-content {
        grid-template-columns: repeat(2, 1fr);
        gap: 40px;
    }
    
    .footer-product-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 20px;
    }
    
    .footer-column-qrcode {
        grid-column: span 2;
        align-items: flex-start;
    }
}

/* 移动端 (<768px) */
@media screen and (max-width: 767px) {
    :root {
        --container-padding: 16px;
    }
    
    .section {
        padding: 60px 0;
    }
    
    .section-title {
        font-size: 28px;
    }
    
    .nav-phone {
        display: none;
    }
    
    .banner-section {
        height: 300px;
        margin-top: 60px;
    }
    
    .banner-title {
        font-size: 28px;
    }
    
    .banner-subtitle {
        font-size: 16px;
    }
    
    .about-stats {
        grid-template-columns: 1fr;
    }
    
    .about-action {
        text-align: center;
        margin-top: 24px;
    }
    
    .btn-about-more {
        padding: 12px 28px;
        font-size: 14px;
    }
    
    /* 产品板块响应式 */
    .products-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .products-title {
        font-size: 28px;
    }
    
    .products-tabs {
        width: 100%;
        justify-content: center;
        padding: 4px;
        gap: 2px;
    }
    
    .products-tabs::before {
        top: 4px;
        height: calc(100% - 8px);
        left: var(--slider-left, 4px);
    }
    
    .tab-btn {
        flex: 1;
        padding: 10px 8px;
        font-size: 13px;
        border-radius: 36px;
    }
    
    /* 子标签移动端适配 */
    .sub-tabs {
        gap: 16px;
        overflow-x: auto;
        justify-content: flex-start;
        padding-bottom: 8px;
        -webkit-overflow-scrolling: touch;
    }
    
    .sub-tabs::-webkit-scrollbar {
        display: none;
    }
    
    .sub-tab-btn {
        font-size: 14px;
        white-space: nowrap;
        flex-shrink: 0;
    }
    
    .product-showcase {
        grid-template-columns: 1fr;
        gap: 32px;
        padding: 24px 20px;
    }
    
    .product-showcase-title {
        font-size: 22px;
    }
    
    .product-features li {
        font-size: 14px;
    }
    
    .btn-primary,
    .btn-secondary {
        padding: 10px 20px;
        font-size: 14px;
    }
    
    .resource-stat {
        flex: 1 1 100%;
        max-width: 100%;
    }
    
    .news-grid {
        grid-template-columns: 1fr;
    }
    
    .partners-scroll-container {
        gap: 12px;
    }
    
    .partner-item {
        width: calc((100vw - 48px) / 2);
        padding: 12px 16px;
        height: 70px;
    }
    
    .partner-item img {
        max-height: 40px;
    }
    
    .scroll-left,
    .scroll-right {
        animation-duration: 20s;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 40px;
        padding: 0 16px;
    }
    
    /* 公司信息区域 - 移动端优化 */
    .footer-brand {
        max-width: 100%;
        text-align: left;
    }
    
    .footer-logo {
        justify-content: flex-start;
        margin-bottom: 16px;
    }
    
    .footer-desc {
        font-size: 14px;
        line-height: 1.7;
        margin-bottom: 20px;
        color: rgba(255, 255, 255, 0.75);
    }
    
    /* 联系方式 - 移动端优化 */
    .footer-contact {
        gap: 14px;
    }
    
    .footer-contact-item {
        align-items: flex-start;
        gap: 10px;
        font-size: 14px;
        line-height: 1.5;
    }
    
    .footer-contact-item svg {
        width: 18px;
        height: 18px;
        flex-shrink: 0;
        margin-top: 1px;
    }
    
    .footer-contact-item span {
        word-break: break-all;
        flex: 1;
    }
    
    /* 产品服务区域 - 移动端优化 */
    .footer-column h4 {
        font-size: 16px;
        margin-bottom: 16px;
        padding-bottom: 10px;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }
    
    .footer-product-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }
    
    .footer-product-category {
        margin-bottom: 0;
        padding: 14px;
        background: rgba(255, 255, 255, 0.02);
        border-radius: 10px;
        border: 1px solid rgba(255, 255, 255, 0.05);
    }
    
    .footer-product-category h5 {
        font-size: 14px;
        font-weight: 600;
        color: var(--primary-light);
        padding-bottom: 8px;
        margin-bottom: 10px;
        border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        display: flex;
        align-items: center;
        gap: 6px;
    }
    
    .footer-product-category h5::before {
        content: '';
        width: 3px;
        height: 14px;
        background: var(--primary-light);
        border-radius: 2px;
    }
    
    .footer-product-links {
        gap: 6px;
    }
    
    .footer-product-links .footer-link {
        font-size: 13px;
        line-height: 1.4;
        padding: 8px 6px;
        border-radius: 4px;
        transition: all 0.15s ease;
        display: block;
        text-align: center;
    }
    
    .footer-product-links .footer-link:hover,
    .footer-product-links .footer-link:active {
        background: rgba(26, 114, 179, 0.12);
        color: var(--primary-light);
    }
    
    /* 快速导航 - 移动端优化 */
    .footer-links {
        gap: 6px;
    }
    
    .footer-link {
        font-size: 14px;
        padding: 8px 0;
        min-height: 44px;
        display: flex;
        align-items: center;
        border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    }
    
    .footer-link:last-child {
        border-bottom: none;
    }
    
    /* 关注我们 - 移动端优化 */
    .footer-column-qrcode {
        align-items: center;
        text-align: center;
        grid-column: span 1;
        padding-top: 8px;
        border-top: 1px solid rgba(255, 255, 255, 0.1);
    }
    
    .footer-qrcode img {
        width: 140px;
        height: 140px;
    }
    
    .qrcode-text {
        font-size: 13px;
        margin-top: 8px;
    }
    
    /* 底部版权 - 移动端优化 */
    .footer-bottom {
        padding: 20px 16px;
        margin-top: 30px;
    }
    
    .footer-copyright {
        font-size: 12px;
        line-height: 1.6;
        text-align: center;
    }
    
    .footer-copyright a {
        display: block;
        margin-top: 8px;
        margin-left: 0 !important;
    }
}

/* 关注我们 - 二维码区域 */
.footer-column-qrcode {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.footer-qrcode {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
}

.footer-qrcode img {
    width: 120px;
    height: 120px;
    border-radius: 8px;
    object-fit: cover;
    background: var(--bg-white);
    padding: 4px;
}

.qrcode-text {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.6);
}

/* 小屏幕移动端适配 */
@media screen and (max-width: 480px) {
    .footer {
        padding-top: 40px;
    }
    
    .footer-content {
        gap: 32px;
        padding: 0 12px;
    }
    
    /* 公司信息 - 小屏幕优化 */
    .footer-logo img {
        height: 36px;
    }
    
    .footer-logo-text {
        font-size: 15px;
    }
    
    .footer-desc {
        font-size: 13px;
        margin-bottom: 16px;
    }
    
    /* 联系方式 - 小屏幕优化 */
    .footer-contact {
        gap: 12px;
    }
    
    .footer-contact-item {
        font-size: 13px;
        gap: 8px;
    }
    
    .footer-contact-item svg {
        width: 16px;
        height: 16px;
    }
    
    /* 产品服务 - 小屏幕改为卡片式布局 */
    .footer-product-grid {
        grid-template-columns: 1fr;
        gap: 12px;
    }
    
    .footer-product-category {
        margin-bottom: 0;
        padding: 16px;
        background: rgba(255, 255, 255, 0.03);
        border-radius: 12px;
        border: 1px solid rgba(255, 255, 255, 0.06);
        transition: all 0.2s ease;
    }
    
    .footer-product-category:active {
        background: rgba(255, 255, 255, 0.05);
    }
    
    .footer-product-category h5 {
        font-size: 15px;
        font-weight: 600;
        color: var(--primary-light);
        margin-bottom: 12px;
        padding-bottom: 10px;
        border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        display: flex;
        align-items: center;
        gap: 8px;
    }
    
    /* 添加分类图标指示器 */
    .footer-product-category h5::before {
        content: '';
        width: 4px;
        height: 16px;
        background: linear-gradient(180deg, var(--primary-light), var(--primary));
        border-radius: 2px;
    }
    
    .footer-product-links {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 4px 12px;
    }
    
    .footer-product-links .footer-link {
        font-size: 13px;
        padding: 10px 8px;
        border-bottom: none;
        border-radius: 6px;
        transition: all 0.15s ease;
        text-align: center;
        background: rgba(255, 255, 255, 0.02);
        min-height: 40px;
        display: flex;
        align-items: center;
        justify-content: center;
    }
    
    .footer-product-links .footer-link:hover,
    .footer-product-links .footer-link:active {
        background: rgba(26, 114, 179, 0.15);
        color: var(--primary-light);
    }
    
    /* 快速导航 - 小屏幕优化 */
    .footer-links {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 0;
    }
    
    .footer-link {
        font-size: 13px;
        padding: 10px 0;
        min-height: 44px;
        border-bottom: none;
        border-right: 1px solid rgba(255, 255, 255, 0.05);
    }
    
    .footer-link:nth-child(2n) {
        border-right: none;
        padding-left: 16px;
    }
    
    .footer-link:nth-child(2n-1) {
        padding-right: 16px;
    }
    
    /* 关注我们 - 小屏幕优化 */
    .footer-column-qrcode {
        align-items: center;
        padding-top: 16px;
    }
    
    .footer-qrcode img {
        width: 130px;
        height: 130px;
    }
    
    /* 底部版权 - 小屏幕优化 */
    .footer-bottom {
        padding: 16px 12px;
        margin-top: 24px;
    }
    
    .footer-copyright {
        font-size: 11px;
    }
}

/* 移动端侧边栏菜单 */
.mobile-sidebar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 2000;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
}

.mobile-sidebar.active {
    opacity: 1;
    visibility: visible;
}

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

.sidebar-content {
    position: absolute;
    top: 0;
    right: 0;
    width: 280px;
    max-width: 80%;
    height: 100%;
    background: var(--bg-white);
    box-shadow: var(--shadow-xl);
    transform: translateX(100%);
    transition: transform var(--transition-slow);
    display: flex;
    flex-direction: column;
}

.mobile-sidebar.active .sidebar-content {
    transform: translateX(0);
}

.sidebar-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px;
    border-bottom: 1px solid var(--border-color);
}

.sidebar-nav {
    flex: 1;
    padding: 20px;
    overflow-y: auto;
}

.sidebar-list {
    list-style: none;
}

.sidebar-item {
    margin-bottom: 8px;
}

.sidebar-link {
    display: block;
    padding: 12px 16px;
    font-size: 15px;
    font-weight: 500;
    color: var(--text-primary);
    text-decoration: none;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.sidebar-link:hover {
    background: var(--primary-bg);
    color: var(--primary-color);
}

.sidebar-close {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-primary);
}

.sidebar-close svg {
    width: 24px;
    height: 24px;
    stroke: currentColor;
}

/* ---- 子版块Banner区域 - 全宽500px ---- */
.news-banner {
    position: relative;
    width: 100%;
    height: 500px;
    overflow: hidden;
    margin-top: 0;
    margin-top: 70px;
    background: linear-gradient(135deg, #1a72b3 0%, #0d4a75 50%, #145a8f 100%);
}
.news-banner::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        linear-gradient(135deg, rgba(12, 74, 110, 0.6) 0%, rgba(15, 23, 42, 0.7) 100%),
        radial-gradient(circle at 20% 80%, rgba(255,255,255,0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(255,255,255,0.08) 0%, transparent 40%),
        radial-gradient(circle at 50% 50%, rgba(255,255,255,0.05) 0%, transparent 60%);
    pointer-events: none;
    z-index: 1;
}

.news-banner-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.news-banner-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.news-banner-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.news-banner-content {
    position: relative;
    z-index: 2;
    max-width: 1280px;
    margin: 0 auto;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 0 24px;
}

.news-banner-title {
    font-size: 48px;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 16px;
    letter-spacing: 4px;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.news-banner-subtitle {
    font-size: 18px;
    color: rgba(255, 255, 255, 0.8);
    letter-spacing: 8px;
    text-transform: uppercase;
}

@media (max-width: 1024px) {
    .news-banner {
        height: 400px;
    }
    
    .news-banner-title {
        font-size: 40px;
    }
}

@media (max-width: 768px) {
    .news-banner {
        height: 350px;
        margin-top: 60px;
    }
    
    .news-banner-title {
        font-size: 32px;
        letter-spacing: 2px;
    }
    
    .news-banner-subtitle {
        font-size: 14px;
        letter-spacing: 4px;
    }
}

@media (max-width: 480px) {
    .news-banner {
        height: 300px;
    }
    
    .news-banner-title {
        font-size: 26px;
    }
}