/* 全局样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* ========== 移动端布局优化 ========== */
@media (max-width: 768px) {
    body {
        font-size: 14px;
        line-height: 1.6;
    }

    .container {
        padding: 0 16px;
    }

    /* 顶部导航 */
    .navbar .container {
        flex-wrap: wrap;
    }
    .nav-brand {
        margin-bottom: 8px;
    }
    .nav-menu {
        width: 100%;
        flex-direction: column;
        gap: 8px;
    }
    .nav-menu li {
        margin: 0;
    }
    .nav-menu a {
        display: block;
        width: 100%;
        padding: 10px 12px;
    }

    /* 页头与通用标题 */
    .page-header {
        padding: 40px 0 28px;
        text-align: center;
    }
    .page-header h1 {
        font-size: 26px;
        margin-bottom: 8px;
    }
    .page-header p {
        font-size: 14px;
    }

    /* 通用栅格改为单列 */
    .grid-row {
        flex-direction: column;
    }
    [class*="grid-col-"] {
        width: 100% !important;
        max-width: 100% !important;
    }

    /* about 页面 */
    .intro-left,
    .intro-right {
        padding: 16px 0;
    }
    .intro-image .image-placeholder {
        height: 200px;
    }
    .advantages-icons {
        gap: 16px;
    }

    /* business 页面 */
    .primary-industry-cards {
        gap: 16px;
    }
    .primary-industry-card,
    .primary-industry-card.card-reverse {
        flex-direction: column;
    }
    .primary-card-content {
        padding: 20px 16px;
    }
    .primary-card-btn img {
        width: 120px;
    }

    /* news 列表页 */
    .news-list {
        gap: 16px;
    }
    .news-item .news-content-wrapper {
        flex-direction: column;
        gap: 12px;
        
    }


    .news-thumbnail {
        width: 100%;
    }
    .news-thumbnail img {
        width: 100%;
        height: auto;
        object-fit: cover;
    }
    .news-date-block {
        margin-bottom: 8px;
    }

    /* news 详情页 */
    .news-detail-header {
        gap: 8px;
    }
    .news-detail-title {
        font-size: 22px;
        line-height: 1.4;
    }
    .news-detail-meta {
        flex-wrap: wrap;
        gap: 8px;
    }
    .news-detail-content {
        padding: 0;
        margin-top: 16px;
    }

    /* 联系我们 */
    .contact-content-wrapper {
        flex-direction: column;
    }
    .contact-info-box {
        width: 100%;
        margin-bottom: 16px;
    }
    .contact-form-box {
        width: 100%;
    }

    /* 首页 hero 与业务卡片 */
    .hero-banner {
        min-height: 60vh;
        padding: 60px 0;
    }
    .hero-content {
        align-items: flex-start;
        padding: 0 8px;
    }
    .hero-title,
    .hero-title-blu {
        font-size: 32px;
    }
    .hero-subtitle {
        font-size: 16px;
    }
    .hero-slogan {
        font-size: 14px;
    }
    .hero-buttons {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }
    .business-grid,
    .partners-grid,
    .advantages-icons,
    .stats-grid {
        grid-template-columns: 1fr !important;
    }

    /* 页脚 */
    .footer-content {
        flex-direction: column;
        gap: 16px;
    }
    .footer-section {
        width: 100%;
    }
}

:root {
    /* 主色调 */
    --primary-blue: #1a7ee2;
    --forest-green: #11FFC4;
    --wood-color: #D7CCC8;
    
    /* 辅助色 */
    --dark-gray: #0D1B2A;
    --light-gray: #3f536a;
    --white: #FFFFFF;
    
    /* 字体 */
    --font-family: 'Source Han Sans CN', 'Microsoft YaHei', sans-serif;
    
    /* 间距 */
    --spacing-xs: 8px;
    --spacing-sm: 16px;
    --spacing-md: 32px;
    --spacing-lg: 64px;
    --spacing-xl: 128px;
}

body {
    font-family: var(--font-family);
    color: var(--dark-gray);
    line-height: 1.6;
    overflow-x: hidden;
    background-color: #F3F8FF;
}

/* 首页整体底色 */
body.has-hero {
    background-color: #eef6ff;
}

.container {
    width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-sm);
}


/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: var(--white);
    z-index: 1000;
    transition: all 0.3s ease;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-xs) var(--spacing-xs);
}

.nav-brand a {
    display: inline-flex;
    align-items: center;
}

.nav-brand  {
    
    width: 40%;
    height: 50px;
    display: flex;
    align-items: center;
}

.logo{
    width: 50%;
    height: auto;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-md);
}

.nav-menu a {
    text-decoration: none;
    color: var(--dark-gray);
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: currentColor;
    transition: width 0.3s ease;
}

.nav-menu a:hover::after,
.nav-menu a.active::after {
    width: 100%;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 5px;
}

.nav-toggle span {
    width: 25px;
    height: 3px;
    background: rgba(255, 255, 255, 0.8);
    transition: all 0.3s ease;
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    backdrop-filter: blur(10px);
}

.navbar:not(.scrolled) .nav-menu a.active,
.navbar:not(.scrolled) .nav-menu a:hover {
    color: var(--primary-blue);
}

.navbar:not(.scrolled) .nav-menu a.active::after,
.navbar:not(.scrolled) .nav-menu a:hover::after {
    background: var(--primary-blue);
}


.navbar.scrolled .nav-menu a {
    color: #999999;
}

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

.navbar.scrolled .nav-menu a:hover::after,
.navbar.scrolled .nav-menu a.active::after {
    background: var(--primary-blue);
}

.navbar.scrolled .nav-toggle span {
    background: #666666;
}

/* 按钮样式 */
.btn {
    display: inline-block;
    padding: 12px 32px;
    border-radius: 30px;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    border: 2px solid transparent;
    cursor: pointer;
}

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

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(25, 118, 210, 0.3);
}

.btn-secondary {
    background: var(--white);
    color: var(--primary-blue);
    /* border-color: var(--primary-blue); */
}

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

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

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

/* 标题样式 */
.section-title {
    font-size: 36px;
    font-weight: bold;
    text-align: center;
    margin-bottom: var(--spacing-lg);
    color: var(--dark-gray);
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: var(--primary-blue);
    border-radius: 2px;
}

/* 卡片样式 */
.card {
    background: var(--white);
    border-radius: 8px;
    padding: var(--spacing-md);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
}

/* 新闻列表卡片整块可点击 */
.news-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}
.news-item-link {
    display: flex;
    color: inherit;
    text-decoration: none;
    height: 100%;
    flex-direction: row;
    gap: var(--spacing-md);
    flex: 1;
}
.news-item-link:hover {
    color: inherit;
}
.news-item .news-content-wrapper {
    flex: 1;
    display: flex;
    gap: var(--spacing-md);
    align-items: stretch;
}
.news-item .news-thumbnail {
    width: 220px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}
.news-item .news-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* 统一卡片悬浮动效（所有版块的卡片都弹起） */
.value-card,
.business-card,
.stat-card,
.partner-logo,
.business-detail-card,
.solution-card,
.case-card,
.certificate-item,
.content-card {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.value-card:hover,
.business-card:hover,
.stat-card:hover,
.partner-logo:hover,
.business-detail-card:hover,
.solution-card:hover,
.case-card:hover,
.certificate-item:hover,
.content-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 10px 32px rgba(0, 0, 0, 0.16);
}

/* 页脚 */
.footer {
    background: var(--dark-gray);
    color: var(--white);
    padding: var(--spacing-lg) 0 var(--spacing-md);
    /* margin-top: var(--spacing-xl); */
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.footer-logo {
    margin-bottom: var(--spacing-sm);
    height: 50px;
    width: auto;
    display: flex;
    align-items: center;
}

.footer-logo img {
    width: 50%;
    height: auto;
    object-fit: contain;
}

.footer-section h3,
.footer-section h4 {
    margin-bottom: var(--spacing-sm);
    color: #1A83ED;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: var(--spacing-xs);
}

.footer-section a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section a:hover {
    color: var(--forest-green);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.6);
}

.social-links {
    display: flex;
    gap: var(--spacing-md);
    /* flex-wrap: wrap; */
}

.qr-code-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
}

.qr-code {
    width: 120px;
    height: 120px;
    border-radius: 8px;
    background: var(--white);
    /* box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1); */
    transition: all 0.3s ease;
}

.qr-code:hover {
    transform: scale(1.05);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.qr-code-item span {
    color: rgba(255, 255, 255, 0.9);
    font-size: 14px;
    font-weight: 500;
}

.social-icon {
    padding: 8px 16px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
    transition: all 0.3s ease;
}

.social-icon:hover {
    background: var(--forest-green);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        flex-direction: column;
        background: rgba(255, 255, 255, 0.98);
        width: 100%;
        padding: var(--spacing-md);
        box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
        transition: left 0.3s ease;
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-toggle {
        display: flex;
    }

    .nav-menu a {
        color: #666666;
    }

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

    .section-title {
        font-size: 28px;
    }

    .container {
        padding: 0 var(--spacing-sm);
    }
}

/* 强化移动端覆盖，确保排版不乱（优先级高于上方基础样式） */
@media (max-width: 768px) {
    .container {
        width: 100% !important;
        max-width: 100% !important;
        margin: 0 auto;
        padding: 0 12px;
    }
    .grid-row {
        margin: 0;
    }
    [class*="grid-col-"] {
        width: 100% !important;
        max-width: 100% !important;
        padding: 0 12px;
    }

    /* 导航条与品牌 */
    .navbar .container {
        padding: 12px 12px;
    }
    .nav-brand {
        width: auto;
    }
    .logo {
        width: 120px;
    }
    .nav-menu {
        gap: 12px;
    }

    /* 页面标题区 */
    .page-header {
        margin-top: 60px;
        padding: 36px 0 24px;
        background-size: cover;
    }

    /* 业务卡片与列表 */
    .primary-industry-cards {
        gap: 16px;
    }
    .primary-industry-card,
    .primary-industry-card.card-reverse {
        flex-direction: column;
    }
    .primary-card-content {
        padding: 16px 14px;
    }

    /* 新闻列表 */
    .news-list {
        gap: 14px;
    }
    .news-item {
        padding: 12px;
    }
    .news-item-link {
        display: block;
        color: inherit;
        text-decoration: none;
        height: 100%;
    }
    .news-item-link:hover {
        color: inherit;
    }
    .news-item .news-content-wrapper {
        flex-direction: column;
        gap: 10px;
        width: 100%;
    }
    .news-item .news-thumbnail {
        width: 100%;
    }
    .news-item .news-thumbnail img {
        width: 100%;
        height: auto;
    }
    .news-item .news-main-content {
        min-height: auto;
    }
    .news-item .news-content-wrapper {
        flex-direction: column;
        gap: 10px;
    }
    .news-date-block {
        margin-bottom: 6px;
    }

    /* 新闻详情 */
    .news-detail-title {
        font-size: 20px;
    }
    .news-detail-meta {
        gap: 6px;
    }
    .news-detail-content {
        margin-top: 12px;
    }

    /* 联系我们 */
    .contact-content-wrapper {
        gap: 16px;
    }

    /* 首页 hero 与网格 */
    .hero-banner {
        padding: 56px 0;
    }
    .hero-content {
        padding: 0 4px !important;
    }
    .hero-title,
    .hero-title-blu {
        font-size: 32px !important;
    }
    .business-grid,
    .partners-grid,
    .stats-grid,
    .advantages-icons {
        grid-template-columns: 1fr !important;
    }

    /* 页脚 */
    .footer-content {
        padding: 0;
    }
}

/* 动画 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
    animation-fill-mode: forwards;
}

/* 确保hover效果优先级高于动画 */
.value-card:hover,
.business-card:hover,
.stat-card:hover,
.partner-logo:hover,
.business-detail-card:hover,
.solution-card:hover,
.case-card:hover,
.certificate-item:hover,
.content-card:hover {
    transform: translateY(-6px) !important;
    box-shadow: 0 10px 32px rgba(0, 0, 0, 0.16);
}