/* 高端企业网站样式 */

:root {
    --primary-color: #2c3e50;
    --secondary-color: #3498db;
    --accent-color: #e74c3c;
    --success-color: #27ae60;
    --text-dark: #2c3e50;
    --text-light: #7f8c8d;
    --bg-light: #f8f9fa;
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.08);
    --shadow-md: 0 4px 20px rgba(0,0,0,0.12);
    --shadow-lg: 0 8px 30px rgba(0,0,0,0.15);
}

/* 全局样式 */
body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
    color: var(--text-dark);
    line-height: 1.8;
    overflow-x: hidden;
    margin: 0;
    padding: 0;
    min-width: 320px; /* 最小宽度，防止过度压缩 */
}

/* 修复页面宽度问题 */
html {
    overflow-x: hidden;
    width: 100%;
}

/* 修复容器溢出 */
* {
    box-sizing: border-box;
}

/* 确保所有图片响应式 */
img {
    max-width: 100%;
    height: auto;
}

/* 确保表格响应式 */
table {
    max-width: 100%;
}

/* 防止长文本溢出 */
.text-truncate {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* 确保flex容器不溢出 */
.d-flex,
.flex-row,
.flex-column {
    min-width: 0;
}

/* 容器内边距优化 - 使用最高优先级 */
/* 基础设置：所有屏幕 */
html body .container,
html body .container-fluid,
body .container,
body .container-fluid,
.container,
.container-fluid {
    padding-left: 50px !important;
    padding-right: 50px !important;
    max-width: 100% !important; /* 恢复，保持全宽 */
}

/* 使用CSS变量实现动态字体大小 */
html {
    /* 基础字体大小随视口宽度缩放 */
    font-size: clamp(14px, 1vw, 16px);
}

body {
    /* 使用相对单位，随html字体大小缩放 */
    font-size: 1rem;
}

/* Section区域内边距 */
section {
    padding-left: 0;
    padding-right: 0;
}

/* 确保内容区域有呼吸空间 */
.py-5 {
    padding-top: 3rem !important;
    padding-bottom: 3rem !important;
}

/* 小屏手机 */
@media (max-width: 575px) {
    html body .container,
    html body .container-fluid,
    body .container,
    body .container-fluid,
    .container,
    .container-fluid {
        padding-left: 30px !important;
        padding-right: 30px !important;
    }
}

/* 手机横屏/小平板 */
@media (min-width: 576px) and (max-width: 767px) {
    html body .container,
    html body .container-fluid,
    body .container,
    body .container-fluid,
    .container,
    .container-fluid {
        padding-left: 45px !important;
        padding-right: 45px !important;
    }
}

/* 平板 */
@media (min-width: 768px) and (max-width: 991px) {
    html body .container,
    html body .container-fluid,
    body .container,
    body .container-fluid,
    .container,
    .container-fluid {
        padding-left: 55px !important;
        padding-right: 55px !important;
    }
}

/* 小桌面 */
@media (min-width: 992px) and (max-width: 1199px) {
    html body .container,
    html body .container-fluid,
    body .container,
    body .container-fluid,
    .container,
    .container-fluid {
        padding-left: 70px !important;
        padding-right: 70px !important;
    }
}

/* 大桌面 */
@media (min-width: 1200px) and (max-width: 1399px) {
    html body .container,
    html body .container-fluid,
    body .container,
    body .container-fluid,
    .container,
    .container-fluid {
        padding-left: 80px !important;
        padding-right: 80px !important;
    }
}

/* 超宽屏 */
@media (min-width: 1400px) {
    html body .container,
    html body .container-fluid,
    body .container,
    body .container-fluid,
    .container,
    .container-fluid {
        padding-left: 100px !important;
        padding-right: 100px !important;
    }
}

/* 导航栏高级样式 */
.navbar {
    background: rgba(255, 255, 255, 0.98) !important;
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 20px rgba(0,0,0,0.08);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    padding: 1rem 0;
    min-width: 0; /* 允许内容缩小 */
}

/* 导航栏内的容器使用较小的内边距 */
.navbar .container {
    padding-left: 20px !important;
    padding-right: 20px !important;
    min-width: 0; /* 允许内容缩小 */
}

.navbar.scrolled {
    padding: 0.5rem 0;
    box-shadow: 0 4px 30px rgba(0,0,0,0.12);
}

.navbar-brand {
    font-size: clamp(1rem, 2vw, 1.5rem); /* 动态缩放 */
    font-weight: 700;
    color: var(--primary-color) !important;
    transition: all 0.3s ease;
    min-width: 0; /* 允许品牌名称缩小 */
    flex-shrink: 1; /* 允许在空间不足时缩小 */
}

.navbar-brand:hover {
    transform: translateY(-2px);
}

/* 确保导航栏在小屏幕上正确折叠 */
@media (max-width: 991px) {
    .navbar-brand {
        font-size: clamp(0.9rem, 2vw, 1.2rem);
    }
}

@media (max-width: 576px) {
    .navbar-brand {
        font-size: clamp(0.85rem, 2vw, 1rem);
    }
}

.nav-link {
    position: relative;
    font-weight: 500;
    color: var(--text-dark) !important;
    padding: 0.5rem 0.3rem !important;
    transition: all 0.3s ease;
}

.nav-link::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--secondary-color), var(--success-color));
    transform: translateX(-50%);
    transition: width 0.3s ease;
    border-radius: 3px 3px 0 0;
}

.nav-link:hover::before,
.nav-item.active .nav-link::before {
    width: 80%;
}

.nav-link:hover {
    color: var(--secondary-color) !important;
}

/* Hero Section - 轮播图 */
.hero-section {
    position: relative;
    overflow: hidden;
}

.swiper-container {
    height: 600px;
    border-radius: 0;
}

.swiper-slide {
    position: relative;
}

/* 移除轮播图滤镜遮罩 */
/* .swiper-slide::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(44,62,80,0.7) 0%, rgba(52,152,219,0.5) 100%);
} */

.swiper-slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.swiper-pagination-bullet {
    width: 12px;
    height: 12px;
    background: #fff;
    opacity: 0.5;
    transition: all 0.3s ease;
}

.swiper-pagination-bullet-active {
    width: 30px;
    border-radius: 6px;
    opacity: 1;
    background: var(--secondary-color);
}

/* Section 标题样式 */
.section-title {
    position: relative;
    display: inline-block;
    font-size: clamp(1.8rem, 3vw, 2.5rem); /* 动态缩放 */
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--secondary-color), var(--success-color));
    border-radius: 2px;
}

.section-subtitle {
    font-size: clamp(1rem, 1.5vw, 1.1rem); /* 动态缩放 */
    color: var(--text-light);
    margin-bottom: 3rem;
}

/* 产品卡片高级样式 */
.product-card {
    position: relative;
    border: none;
    border-radius: 16px;
    overflow: hidden;
    background: #fff;
    box-shadow: var(--shadow-sm);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.product-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--secondary-color), var(--success-color));
    transform: scaleX(0);
    transition: transform 0.4s ease;
}

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

.product-card:hover {
    transform: translateY(-12px);
    box-shadow: var(--shadow-lg);
}

.product-card .card-img-wrapper {
    position: relative;
    height: 220px;
    overflow: hidden;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.product-card .card-img-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.product-card:hover .card-img-wrapper img {
    transform: scale(1.15);
}

.product-card .card-body {
    padding: 1.5rem;
}

.product-card .card-title {
    font-size: clamp(1rem, 1.5vw, 1.2rem); /* 动态缩放 */
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 0.8rem;
}

.product-card .card-text {
    color: var(--text-light);
    font-size: clamp(0.85rem, 1.2vw, 0.95rem); /* 动态缩放 */
    line-height: 1.6;
}

/* 新闻卡片样式 */
.news-card {
    position: relative;
    padding: 1.5rem;
    background: #fff;
    border-radius: 12px;
    border-left: 4px solid var(--secondary-color);
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
}

.news-card:hover {
    transform: translateX(8px);
    box-shadow: var(--shadow-md);
    border-left-color: var(--success-color);
}

.news-card h5 {
    font-size: clamp(0.95rem, 1.5vw, 1.1rem); /* 动态缩放 */
    font-weight: 600;
    margin-bottom: 0.8rem;
}

.news-card h5 a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color 0.3s ease;
    display: block;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.news-card h5 a:hover {
    color: var(--secondary-color);
}

.news-card p {
    line-height: 1.8 !important;
    max-height: 5.4em !important;  /* 1.8 * 3 = 5.4em，显示3行 */
    height: auto !important;  /* 覆盖内联样式的固定高度 */
    overflow: hidden !important;
    margin-bottom: 0 !important;
    padding: 0 !important;
    word-break: break-word;
    font-size: clamp(0.85rem, 1.2vw, 0.95rem); /* 动态缩放 */
}

.news-card .news-meta {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-top: 1rem;
    font-size: 0.9rem;
    color: var(--text-light);
}

.news-card .news-meta i {
    color: var(--secondary-color);
}

/* 按钮高级样式 */
.btn-premium {
    position: relative;
    padding: 12px 32px;
    font-weight: 600;
    border-radius: 50px;
    border: 2px solid transparent;
    overflow: hidden;
    transition: all 0.3s ease;
}

.btn-premium::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
    transition: left 0.5s ease;
}

.btn-premium:hover::before {
    left: 100%;
}

.btn-premium-primary {
    background: linear-gradient(135deg, var(--secondary-color), var(--success-color));
    color: #fff;
}

.btn-premium-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(52,152,219,0.4);
}

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

.btn-premium-outline:hover {
    background: var(--secondary-color);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(52,152,219,0.3);
}

/* 公司简介区域 */
.about-section {
    position: relative;
    padding: 5rem 0;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
}

.about-content {
    background: #fff;
    padding: 3rem;
    border-radius: 16px;
    box-shadow: var(--shadow-md);
    line-height: 2;
}

/* 联系我们页面图片居中 */
.about-content img {
    display: block;
    margin: 1.5rem auto;
    max-width: 100%;
    height: auto;
}

/* 文章列表样式 */
.article-list {
    background: #fff;
    border-radius: 16px;
    padding: 2rem;
    box-shadow: var(--shadow-sm);
}

.article-item {
    position: relative;
    padding: 1.5rem 0;
    border-bottom: 1px solid #e9ecef;
    transition: all 0.3s ease;
}

.article-item:last-child {
    border-bottom: none;
}

.article-item::before {
    content: '';
    position: absolute;
    left: -2rem;
    top: 50%;
    transform: translateY(-50%);
    width: 4px;
    height: 0;
    background: var(--secondary-color);
    transition: height 0.3s ease;
}

.article-item:hover::before {
    height: 60%;
}

.article-item:hover {
    padding-left: 1rem;
    background: #f8f9fa;
}

.article-item a {
    color: var(--text-dark);
    text-decoration: none;
    font-size: clamp(0.95rem, 1.3vw, 1.05rem); /* 动态缩放 */
    font-weight: 500;
    transition: color 0.3s ease;
}

.article-item a:hover {
    color: var(--secondary-color);
}

.article-item .article-date {
    color: var(--text-light);
    font-size: clamp(0.8rem, 1.1vw, 0.9rem); /* 动态缩放 */
}

/* 文章详情页 */
.article-detail {
    background: #fff;
    border-radius: 16px;
    padding: 3rem;
    box-shadow: var(--shadow-md);
}

.article-detail h1 {
    font-size: clamp(1.6rem, 3vw, 2.2rem); /* 动态缩放 */
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    padding-bottom: 1.5rem;
    border-bottom: 2px solid #e9ecef;
}

.article-meta {
    display: flex;
    align-items: center;
    gap: 2rem;
    padding: 1rem 0;
    margin-bottom: 2rem;
    border-bottom: 1px solid #e9ecef;
    color: var(--text-light);
    font-size: clamp(0.85rem, 1.1vw, 0.95rem); /* 动态缩放 */
}

.article-meta i {
    color: var(--secondary-color);
    margin-right: 0.5rem;
}

.article-content {
    font-size: clamp(0.95rem, 1.3vw, 1.05rem); /* 动态缩放 */
    line-height: 2;
    color: #555;
}

.article-content p {
    margin-bottom: 1.5rem !important;
    height: auto !important;
    max-height: none !important;
    overflow: visible !important;
}

.article-content ul,
.article-content li {
    height: auto !important;
    max-height: none !important;
    overflow: visible !important;
}

.article-content img {
    max-width: 100%;
    height: auto;
    border-radius: 12px;
    box-shadow: var(--shadow-md);
    margin: 2rem 0;
}

/* 面包屑导航 */
.breadcrumb-custom {
    background: transparent;
    padding: 1rem 0;
    font-size: 0.95rem;
}

.breadcrumb-custom a {
    color: var(--secondary-color);
    text-decoration: none;
    transition: color 0.3s ease;
}

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

/* 页脚高级样式 */
.footer-premium {
    background: linear-gradient(135deg, #2c3e50 0%, #34495e 100%);
    color: #ecf0f1;
    padding: 4rem 0 2rem;
}

/* 页脚内的容器使用较小的内边距 */
.footer-premium .container {
    padding-left: 20px !important;
    padding-right: 20px !important;
}

.footer-premium h5 {
    color: #fff;
    font-weight: 600;
    margin-bottom: 1.5rem;
    position: relative;
    padding-bottom: 0.8rem;
}

.footer-premium h5::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 50px;
    height: 3px;
    background: var(--secondary-color);
    border-radius: 2px;
}

.footer-premium ul {
    list-style: none;
    padding: 0;
}

.footer-premium ul li {
    padding: 0.5rem 0;
    transition: all 0.3s ease;
}

.footer-premium ul li:hover {
    padding-left: 10px;
}

.footer-premium a {
    color: #bdc3c7;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-premium a:hover {
    color: var(--secondary-color);
}

.footer-premium .qr-code {
    padding: 1rem;
    background: #fff;
    border-radius: 12px;
    display: inline-block;
    box-shadow: var(--shadow-md);
    transition: transform 0.3s ease;
}

.footer-premium .qr-code:hover {
    transform: scale(1.05);
}

/* 分类导航 */
.category-nav {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    margin: 2rem 0;
}

.category-nav .btn {
    border-radius: 50px;
    padding: 0.6rem 1.5rem;
    font-weight: 500;
    transition: all 0.3s ease;
}

/* 响应式优化 */

/* 平板设备 (768px - 991px) */
@media (max-width: 991px) {
    .navbar-nav {
        margin-top: 1rem;
    }
    
    .contact-phone {
        margin-top: 1rem;
        margin-left: 0 !important;
    }
    
    .product-card .card-img-wrapper {
        height: 200px;
    }
    
    .footer-premium .col-md-4 {
        margin-bottom: 2rem;
    }
}

/* 手机设备 (最大768px) */
@media (max-width: 768px) {
    /* 标题字体缩小 */
    .section-title {
        font-size: 1.8rem;
    }
    
    .section-subtitle {
        font-size: 1rem;
    }
    
    /* 轮播图高度调整 */
    .swiper-container {
        height: 300px;
    }
    
    /* 导航栏优化 */
    .navbar {
        padding: 0.5rem 0;
    }
    
    .navbar-brand {
        font-size: 1.2rem;
    }
    
    .navbar-brand img {
        height: 35px !important;
    }
    
    /* 产品卡片优化 */
    .product-card {
        margin-bottom: 1.5rem;
    }
    
    .product-card .card-img-wrapper {
        height: 180px;
    }
    
    .product-card .card-body {
        padding: 1rem;
    }
    
    .product-card .card-title {
        font-size: 1.1rem;
    }
    
    /* 新闻卡片优化 */
    .news-card {
        padding: 1rem;
        margin-bottom: 1rem;
    }
    
    .news-card h5 {
        font-size: 1rem;
    }
    
    .news-card p {
        font-size: 0.9rem;
        line-height: 1.6 !important;
        max-height: 4.8em !important;
    }
    
    /* 文章详情页优化 */
    .article-detail {
        padding: 1.5rem;
        border-radius: 8px;
    }
    
    .article-detail h1 {
        font-size: 1.6rem;
        padding-bottom: 1rem;
    }
    
    .article-meta {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }
    
    .article-content {
        font-size: 1rem;
        line-height: 1.8;
    }
    
    /* 公司简介区域 */
    .about-content {
        padding: 1.5rem;
        border-radius: 8px;
    }
    
    /* 页脚优化 */
    .footer-premium {
        padding: 2rem 0 1rem;
    }
    
    .footer-premium h5 {
        font-size: 1.1rem;
        margin-bottom: 1rem;
    }
    
    .footer-premium ul li {
        font-size: 0.9rem;
        padding: 0.3rem 0;
    }
    
    /* Jumbotron 优化 */
    .jumbotron-premium {
        padding: 2rem 0;
    }
    
    .jumbotron-premium h1 {
        font-size: 1.8rem;
    }
    
    .jumbotron-premium p {
        font-size: 1rem;
    }
    
    /* 按钮优化 */
    .btn-premium {
        padding: 10px 24px;
        font-size: 0.9rem;
    }
    
    /* 分类导航优化 */
    .category-nav {
        gap: 0.5rem;
    }
    
    .category-nav .btn {
        padding: 0.5rem 1rem;
        font-size: 0.9rem;
    }
}

/* 小屏手机 (最大576px) */
@media (max-width: 576px) {
    /* 容器内边距已在顶部统一设置，这里不再重复 */
    
    /* 标题进一步缩小 */
    .section-title {
        font-size: 1.5rem;
    }
    
    .section-subtitle {
        font-size: 0.9rem;
        margin-bottom: 2rem;
    }
    
    /* 轮播图进一步调整 */
    .swiper-container {
        height: 250px;
    }
    
    /* 导航栏 */
    .navbar-brand {
        font-size: 1rem;
    }
    
    .navbar-brand img {
        height: 30px !important;
    }
    
    .contact-phone {
        font-size: 0.9rem;
        padding: 0.6rem 1.2rem;
    }
    
    /* 产品卡片 */
    .product-card .card-img-wrapper {
        height: 150px;
    }
    
    .product-card .card-title {
        font-size: 1rem;
    }
    
    .product-card .card-text {
        font-size: 0.85rem;
    }
    
    /* 新闻卡片 */
    .news-card {
        padding: 0.8rem;
    }
    
    .news-card h5 {
        font-size: 0.95rem;
    }
    
    .news-card p {
        font-size: 0.85rem;
    }
    
    .news-card .news-meta {
        font-size: 0.8rem;
        gap: 0.5rem;
    }
    
    /* 文章列表 */
    .article-item {
        padding: 1rem 0;
    }
    
    .article-item a {
        font-size: 0.95rem;
    }
    
    .article-item .article-date {
        display: block;
        float: none !important;
        margin-top: 0.5rem;
        font-size: 0.85rem;
    }
    
    /* 文章详情 */
    .article-detail {
        padding: 1rem;
    }
    
    .article-detail h1 {
        font-size: 1.4rem;
    }
    
    .article-content {
        font-size: 0.95rem;
    }
    
    /* 公司简介 */
    .about-content {
        padding: 1rem;
        font-size: 0.95rem;
    }
    
    /* Jumbotron */
    .jumbotron-premium {
        padding: 1.5rem 0;
    }
    
    .jumbotron-premium h1 {
        font-size: 1.5rem;
    }
    
    .jumbotron-premium p {
        font-size: 0.9rem;
    }
    
    /* 按钮 */
    .btn-premium {
        padding: 8px 20px;
        font-size: 0.85rem;
    }
    
    /* 页脚 */
    .footer-premium {
        font-size: 0.9rem;
    }
    
    .footer-premium .qr-code img {
        width: 100px !important;
    }
    
    /* 分类导航 */
    .category-nav .btn {
        padding: 0.4rem 0.8rem;
        font-size: 0.85rem;
    }
}

/* 超小屏设备 (最大375px) */
@media (max-width: 375px) {
    .section-title {
        font-size: 1.3rem;
    }
    
    .swiper-container {
        height: 200px;
    }
    
    .product-card .card-img-wrapper {
        height: 120px;
    }
    
    .article-detail h1 {
        font-size: 1.2rem;
    }
    
    .jumbotron-premium h1 {
        font-size: 1.3rem;
    }
}

/* 横屏模式优化 */
@media (max-height: 500px) and (orientation: landscape) {
    .swiper-container {
        height: 300px;
    }
    
    .jumbotron-premium {
        padding: 1rem 0;
    }
    
    .section-title {
        font-size: 1.5rem;
    }
}

/* 确保图片响应式 */
img {
    max-width: 100%;
    height: auto;
}

/* 表格响应式 */
.table-responsive {
    display: block;
    width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

/* 防止内容溢出 */
body {
    overflow-x: hidden;
}

.container {
    max-width: 100%;
}

/* 加载动画 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

.fade-in-up {
    animation: fadeInUp 0.8s ease-out;
}

.fade-in {
    animation: fadeIn 0.6s ease-out;
}

/* 滚动条美化 */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(135deg, var(--secondary-color), var(--success-color));
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-color);
}

/* 电话号码样式 */
.contact-phone {
    background: linear-gradient(135deg, #fff 0%, #f8f9fa 100%);
    padding: 0.8rem 1.5rem;
    border-radius: 50px;
    box-shadow: var(--shadow-sm);
    font-weight: 600;
    color: var(--accent-color);
    white-space: nowrap;
    flex-shrink: 0;
    min-width: 0; /* 允许在小屏幕上缩小 */
}

/* 小屏幕上电话号码自适应 */
@media (max-width: 991px) {
    .contact-phone {
        padding: 0.6rem 1rem;
        font-size: 0.9rem;
    }
}

@media (max-width: 576px) {
    .contact-phone {
        padding: 0.5rem 0.8rem;
        font-size: 0.85rem;
    }
}

/* Jumbotron 优化 */
.jumbotron-premium {
    position: relative;
    background-size: cover;
    background-position: center;
    padding: 4rem 0;
    margin-bottom: 0;
    border-radius: 0;
}

.jumbotron-premium::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(44,62,80,0.85) 0%, rgba(52,152,219,0.75) 100%);
}

.jumbotron-premium .container {
    position: relative;
    z-index: 1;
}

.jumbotron-premium h1 {
    font-size: clamp(1.8rem, 3.5vw, 2.5rem); /* 动态缩放 */
    font-weight: 700;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}

.jumbotron-premium p {
    font-size: clamp(1rem, 1.8vw, 1.2rem); /* 动态缩放 */
    text-shadow: 1px 1px 2px rgba(0,0,0,0.3);
}

/* 软件下载列表样式 */
.download-list {
    background: #fff;
    border-radius: 16px;
    padding: 2rem;
    box-shadow: var(--shadow-sm);
}

.download-item {
    display: flex;
    align-items: center;
    padding: 2rem;
    margin-bottom: 1.5rem;
    background: #fff;
    border-radius: 12px;
    border: 2px solid #e9ecef;
    transition: all 0.3s ease;
}

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

.download-item:last-child {
    margin-bottom: 0;
}

.download-icon {
    flex-shrink: 0;
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--secondary-color), var(--success-color));
    border-radius: 12px;
    color: #fff;
    margin-right: 2rem;
}

.download-info {
    flex: 1;
}

.download-info h5 {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.download-info p {
    margin-bottom: 0.8rem;
    line-height: 1.6;
}

.download-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    font-size: 0.9rem;
    color: var(--text-light);
}

.download-meta i {
    color: var(--secondary-color);
}

.download-action {
    flex-shrink: 0;
    margin-left: 2rem;
}

.download-action .btn {
    white-space: nowrap;
}

/* 响应式：平板 */
@media (max-width: 991px) {
    .download-item {
        flex-wrap: wrap;
    }
    
    .download-icon {
        width: 60px;
        height: 60px;
        margin-right: 1.5rem;
    }
    
    .download-action {
        margin-left: 0;
        margin-top: 1rem;
        width: 100%;
    }
    
    .download-action .btn {
        width: 100%;
    }
}

/* 响应式：手机 */
@media (max-width: 576px) {
    .download-list {
        padding: 1rem;
    }
    
    .download-item {
        padding: 1.5rem;
        flex-direction: column;
        text-align: center;
    }
    
    .download-icon {
        margin-right: 0;
        margin-bottom: 1rem;
    }
    
    .download-info h5 {
        font-size: 1.1rem;
    }
    
    .download-meta {
        justify-content: center;
        font-size: 0.85rem;
    }
}

/* 评论区样式 */
.comment-section {
    margin-top: 3rem;
    padding-top: 3rem;
    border-top: 2px solid #e9ecef;
}

.comment-section h3,
.comment-section h4 {
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: 1.5rem;
}

.comment-form {
    background: #f8f9fa;
    border: 1px solid #e9ecef;
}

.comment-form .form-control {
    border-radius: 0.25rem;
    border: 1px solid #ced4da;
    transition: all 0.3s ease;
}

.comment-form .form-control:focus {
    border-color: var(--secondary-color);
    box-shadow: 0 0 0 0.2rem rgba(52, 152, 219, 0.25);
}

.comment-list {
    margin-top: 2rem;
}

.comment-item {
    transition: all 0.3s ease;
    border: 1px solid #e9ecef !important;
}

.comment-item:hover {
    box-shadow: var(--shadow-sm);
    transform: translateY(-2px);
}

.comment-text {
    color: #495057;
    line-height: 1.8;
    margin-top: 0.5rem;
    white-space: pre-wrap;
    word-wrap: break-word;
}

.reply-box {
    background: #f8f9fa !important;
    border-left: 3px solid var(--secondary-color) !important;
}

.reply-box strong {
    color: var(--accent-color);
}

/* 响应式调整 */
@media (max-width: 768px) {
    .comment-section {
        margin-top: 2rem;
        padding-top: 2rem;
    }
    
    .comment-form {
        padding: 1rem !important;
    }
    
    .comment-item {
        padding: 1rem !important;
    }
}