/* 基础样式 */



* {



    margin: 0;



    padding: 0;



    box-sizing: border-box;



}







body {



    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;



    line-height: 1.6;



    color: var(--text-dark);



    background: var(--gray-bg);



}







.container {



    max-width: 1200px;



    margin: 0 auto;



    padding: 0 20px;



}







/* 头部导航 */



.header {



    background: white;



    box-shadow: 0 2px 10px rgba(0,0,0,0.1);



    position: sticky;



    top: 0;



    z-index: 1000;



}







.header .container {



    display: flex;



    justify-content: space-between;



    align-items: center;



    padding: 15px 20px;



}







.logo {



    display: flex;



    align-items: center;



    gap: 15px;



}







.logo img {



    height: 50px;



    width: auto;



}







.logo-text h1 {



    font-size: 24px;



    color: var(--accent);



    margin: 0;



}







.logo-text span {



    font-size: 14px;



    color: var(--text-gray);



}







.nav ul {



    display: flex;



    list-style: none;



    gap: 30px;



}







.nav a {



    text-decoration: none;



    color: var(--text-dark);



    font-weight: 500;



    transition: color 0.3s;



    position: relative;



}







.nav a:hover,



.nav a.active {



    color: var(--accent);



}







.nav a.active::after {



    content: '';



    position: absolute;



    bottom: -5px;



    left: 0;



    right: 0;



    height: 2px;



    background: var(--primary);



}







.header-contact {



    display: flex;



    align-items: center;



    gap: 15px;



}







.phone {



    font-size: 18px;



    font-weight: 700;



    color: var(--accent);



}







.mobile-menu-btn {



    display: none;



    background: none;



    border: none;



    font-size: 24px;



    cursor: pointer;



    color: var(--text-dark);



}







.mobile-menu {



    display: none;



    background: white;



    padding: 20px;



    box-shadow: 0 2px 10px rgba(0,0,0,0.1);



}







.mobile-menu ul {



    list-style: none;



}







.mobile-menu a {



    display: block;



    padding: 10px 0;



    text-decoration: none;



    color: var(--text-dark);



    border-bottom: 1px solid #eee;



}







/* 页面横幅 */



.page-banner {



    background: linear-gradient(135deg, #1e293b 0%, var(--primary-dark) 100%);



    color: white;



    padding: 80px 0;



    text-align: center;



}







.page-banner h1 {



    font-size: 42px;



    margin-bottom: 15px;



}







.page-banner p {



    font-size: 18px;



    opacity: 0.9;



}







/* 页面内容 */



.page-content {



    padding: 60px 0;



}







/* 按钮样式 */



.btn {



    display: inline-block;



    padding: 12px 30px;



    border-radius: 8px;



    text-decoration: none;



    font-weight: 600;



    transition: all 0.3s;



    border: none;



    cursor: pointer;



    font-size: 16px;



}







.btn-primary {



    background: linear-gradient(135deg, var(--primary), var(--primary-dark));



    color: white;



}







.btn-primary:hover {



    background: linear-gradient(135deg, var(--primary-dark), #1e293b);



    transform: translateY(-2px);



    box-shadow: 0 4px 15px rgba(26, 95, 180, 0.3);



}







.btn-secondary {



    background: white;



    color: var(--accent);



    border: 2px solid var(--primary);



}







.btn-secondary:hover {



    background: var(--primary);



    color: white;



}







.btn-large {



    padding: 15px 40px;



    font-size: 20px;



}







.btn-link {



    color: var(--accent);



    text-decoration: none;



    font-weight: 600;



}







.btn-link:hover {



    color: var(--accent);



}







/* 区块标题 */



.section-title {



    text-align: center;



    font-size: 36px;



    color: var(--accent);



    margin-bottom: 15px;



}







.section-subtitle {



    text-align: center;



    font-size: 18px;



    color: var(--text-gray);



    margin-bottom: 40px;



}







/* 产品卡片 */



.products-grid {



    display: grid;



    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));



    gap: 30px;



    margin: 40px 0;



}







.product-card {



    background: white;



    border-radius: 16px;



    overflow: hidden;



    box-shadow: 0 4px 20px rgba(0,0,0,0.08);



    transition: transform 0.3s ease;



}







.product-card:hover {



    transform: translateY(-5px);



    box-shadow: 0 8px 30px rgba(0,0,0,0.12);



}







.product-image {



    height: 220px;



    overflow: hidden;



}







.product-image img {



    width: 100%;



    height: 100%;



    object-fit: cover;



    transition: transform 0.5s ease;



}







.product-card:hover .product-image img {



    transform: scale(1.05);



}







.product-card h3 {



    padding: 20px 20px 10px;



    font-size: 20px;



    color: var(--text-dark);



}







.product-card p {



    padding: 0 20px;



    color: var(--text-gray);



    font-size: 15px;



}







.product-card .btn-link {



    display: inline-block;



    padding: 15px 20px;



}







/* 优势卡片 */



.advantages-grid {



    display: grid;



    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));



    gap: 30px;



    margin: 40px 0;



}







.advantage-card {



    background: white;



    padding: 40px 30px;



    border-radius: 16px;



    text-align: center;



    box-shadow: 0 4px 20px rgba(0,0,0,0.08);



    transition: transform 0.3s ease;



}







.advantage-card:hover {



    transform: translateY(-5px);



}







.advantage-card .icon {



    font-size: 48px;



    margin-bottom: 20px;



}







.advantage-card h3 {



    font-size: 20px;



    color: var(--text-dark);



    margin-bottom: 10px;



}







.advantage-card p {



    color: var(--text-gray);



    font-size: 15px;



}







/* 案例卡片 */



.cases-grid {



    display: grid;



    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));



    gap: 30px;



    margin: 40px 0;



}







.case-card {



    background: white;



    border-radius: 16px;



    overflow: hidden;



    box-shadow: 0 4px 20px rgba(0,0,0,0.08);



    transition: transform 0.3s ease;



}







.case-card:hover {



    transform: translateY(-5px);



}







.case-image {



    height: 250px;



    overflow: hidden;



}







.case-image img {



    width: 100%;



    height: 100%;



    object-fit: cover;



    transition: transform 0.5s ease;



}







.case-card:hover .case-image img {



    transform: scale(1.05);



}







.case-info {



    padding: 25px;



}







.case-info h4 {



    font-size: 20px;



    color: var(--text-dark);



    margin-bottom: 10px;



}







.case-info p {



    color: var(--text-gray);



    font-size: 15px;



}







/* CTA区域 */



.cta {



    background: linear-gradient(135deg, #1e293b 0%, var(--primary-dark) 100%);



    color: white;



    padding: 80px 0;



    text-align: center;



}







.cta h2 {



    font-size: 36px;



    margin-bottom: 15px;



}







.cta p {



    font-size: 18px;



    opacity: 0.9;



    margin-bottom: 30px;



}







/* 页脚 */



.footer {



    background: var(--primary-dark);



    color: white;



    padding: 60px 0 30px;



}







.footer-grid {



    display: grid;



    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));



    gap: 40px;



    margin-bottom: 40px;



}







.footer-section h4 {



    font-size: 18px;



    margin-bottom: 20px;



    color: var(--accent);



}







.footer-section p {



    color: #94a3b8;



    margin-bottom: 10px;



    font-size: 15px;



}







.footer-section ul {



    list-style: none;



}







.footer-section a {



    color: #94a3b8;



    text-decoration: none;



    display: block;



    padding: 5px 0;



    transition: color 0.3s;



}







.footer-section a:hover {



    color: var(--accent);



}







.footer-bottom {



    border-top: 1px solid #1e293b;



    padding-top: 30px;



    text-align: center;



    color: #64748b;



    font-size: 14px;



}







/* 分页 */



.pagination {



    display: flex;



    justify-content: center;



    gap: 10px;



    margin-top: 40px;



}







.page-btn {



    padding: 10px 20px;



    background: white;



    border: 2px solid var(--primary);



    color: var(--accent);



    text-decoration: none;



    border-radius: 8px;



    font-weight: 600;



    transition: all 0.3s;



}







.page-btn:hover,



.page-btn.active {



    background: var(--primary);



    color: white;



}







/* 响应式设计 */



@media (max-width: 768px) {



    .nav {



        display: none;



    }



    



    .mobile-menu-btn {



        display: block;



    }



    



    .header-contact {



        display: none;



    }



    



    .page-banner {



        padding: 60px 0;



    }



    



    .page-banner h1 {



        font-size: 32px;



    }



    



    .section-title {



        font-size: 28px;



    }



    



    .products-grid,



    .advantages-grid,



    .cases-grid {



        grid-template-columns: 1fr;



    }



    



    .cta h2 {



        font-size: 28px;



    }



}







/* 动画效果 - 仅对首次视口内元素触发，避免滚动时才出现 */



@keyframes fadeInUp {



    from {



        opacity: 0;



        transform: translateY(30px);



    }



    to {



        opacity: 1;



        transform: translateY(0);



    }



}







.product-card,



.advantage-card,



.case-card,



.news-card {



    animation: fadeInUp 0.6s ease both;



}







/* 浮动联系按钮（全局） */



.float-contact {



    position: fixed;



    bottom: 30px;



    right: 30px;



    z-index: 9999;



    display: flex;



    flex-direction: column;



    gap: 10px;



}







.float-btn {



    width: 56px;



    height: 56px;



    border-radius: 50%;



    display: flex;



    align-items: center;



    justify-content: center;



    color: white;



    font-size: 24px;



    text-decoration: none;



    box-shadow: 0 4px 15px rgba(0,0,0,0.2);



    transition: all 0.3s ease;



}







.float-btn:hover {



    transform: translateY(-3px);



    box-shadow: 0 6px 20px rgba(0,0,0,0.3);



}







.float-btn.phone {



    background: linear-gradient(135deg, var(--accent), var(--accent-dark));



}







.float-btn.weixin {



    background: linear-gradient(135deg, #07c160, #05a350);



}







@media (max-width: 768px) {



    .float-contact {



        bottom: 20px;



        right: 20px;



    }



    .float-btn {



        width: 48px;



        height: 48px;



        font-size: 20px;



    }



}







/* 文字居中 */



.text-center {



    text-align: center;



}







/* 产品详情页特殊样式 */



.product-detail {



    display: grid;



    grid-template-columns: 1fr 1fr;



    gap: 40px;



    margin-bottom: 40px;



}







.product-gallery img {



    width: 100%;



    border-radius: 12px;



}







.product-info h2 {



    font-size: 32px;



    color: var(--accent);



    margin-bottom: 20px;



}







.specs {



    background: var(--gray-bg);



    padding: 25px;



    border-radius: 12px;



    margin: 20px 0;



}







.specs h4 {



    color: var(--accent);



    margin-bottom: 15px;



}







.specs ul {



    list-style: none;



}







.specs li {



    padding: 8px 0;



    border-bottom: 1px solid #eee;



}







.specs li:last-child {



    border-bottom: none;



}







@media (max-width: 768px) {



    .product-detail {



        grid-template-columns: 1fr;



    }



}





/* ===== CSS Variables (Modern Color Scheme) ===== */

:root {

    --primary: #1e293b;

    --primary-dark: #0f172a;

    --accent: #C9821A;

    --accent-dark: #A66A10;

    --accent-light: #F0C898;

    --blue: #1A6FBB;

    --blue-light: #E8F2FB;

    --gray-bg: #f8fafc;

    --gray-light: #e2e8f0;

    --text-dark: #1a202c;

    --text-gray: #64748b;

    --white: #ffffff;

}



/* ===== SVG Icons ===== */

.svg-icon { vertical-align: middle; margin-right: 2px; flex-shrink: 0; }

.svg-icon-lg { width: 60px; height: 60px; vertical-align: middle; flex-shrink: 0; }

.svg-icon-60 { width: 60px; height: 60px; flex-shrink: 0; }

.mobile-menu-btn .svg-icon { vertical-align: middle; }



/* ===== Top Bar ===== */

.top-bar {

    background: #1e293b;

    color: #94a3b8;

    font-size: 13px;

    height: 38px;

    line-height: 38px;

}

.top-bar .container {

    display: flex;

    justify-content: space-between;

    align-items: center;

    height: 38px;

}

.top-bar a {

    color: #94a3b8;

    text-decoration: none;

    margin-left: 16px;

    transition: color 0.2s;

}

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

.top-bar .welcome { color: #64748b; }



/* ===== Fixed Header (overrides sticky) ===== */

.header {

    position: fixed;

    top: 38px;

    left: 0;

    right: 0;

    background: rgba(255,255,255,0.97);

    backdrop-filter: blur(12px);

    box-shadow: 0 1px 3px rgba(15,23,42,0.06);

    z-index: 1000;

}



/* ===== Breadcrumb ===== */

.breadcrumb {

    padding: 12px 0;

    font-size: 14px;

    color: #94a3b8;

    background: #f8fafc;

    border-bottom: 1px solid #e2e8f0;

}

.breadcrumb a {

    color: #64748b;

    text-decoration: none;

}

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



/* ===== Dropdown Menu ===== */

.nav li.dropdown { position: relative; }

.nav li.dropdown .dropdown-menu {

    display: none;

    position: absolute;

    top: 100%;

    left: 0;

    background: white;

    box-shadow: 0 4px 20px rgba(0,0,0,0.12);

    border-radius: 8px;

    padding: 8px 0;

    min-width: 200px;

    z-index: 1001;

    list-style: none;

}

.nav li.dropdown:hover .dropdown-menu { display: block; }

.nav li.dropdown .dropdown-menu li { padding: 0; }

.nav li.dropdown .dropdown-menu a {

    display: block;

    padding: 10px 20px;

    color: var(--text-dark);

    white-space: nowrap;

    font-size: 15px;

}

.nav li.dropdown .dropdown-menu a:hover {

    background: #f8fafc;

    color: var(--accent);

}



/* ===== Hero Section ===== */

.hero {

    position: relative;

    overflow: hidden;

    height: 85vh;

    min-height: 500px;

    margin-top: 108px;

}

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

.hero-slide {

    position: absolute;

    top: 0; left: 0;

    width: 100%; height: 100%;

    opacity: 0;

    transition: opacity 0.8s ease;

}

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

.hero-slide img {

    width: 100%; height: 100%;

    object-fit: cover;

}

.hero-overlay {

    position: absolute;

    top: 0; left: 0;

    width: 100%; height: 100%;

    background: linear-gradient(135deg, rgba(15,23,42,0.85) 0%, rgba(15,23,42,0.5) 100%);

    display: flex;

    align-items: center;

}

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

.hero-content h2 {

    font-size: 48px;

    font-weight: 800;

    margin-bottom: 20px;

    letter-spacing: 2px;

}

.hero-content p {

    font-size: 20px;

    margin-bottom: 30px;

    opacity: 0.9;

}

.slider-dots {

    position: absolute;

    bottom: 30px;

    left: 50%;

    transform: translateX(-50%);

    display: flex;

    gap: 12px;

    z-index: 10;

}

.slider-dot {

    width: 12px; height: 12px;

    border-radius: 50%;

    background: rgba(255,255,255,0.4);

    cursor: pointer;

    transition: all 0.3s;

}

.slider-dot.active { background: var(--accent); transform: scale(1.3); }



/* ===== Mobile Call Bar ===== */

.mobile-call-bar {

    display: none;

    position: fixed;

    bottom: 0;

    left: 0;

    right: 0;

    background: var(--primary-dark);

    z-index: 9999;

    padding: 8px 16px;

}

.mobile-call-bar a {

    display: flex;

    align-items: center;

    justify-content: center;

    gap: 8px;

    color: white;

    text-decoration: none;

    font-size: 16px;

    font-weight: 600;

    padding: 10px 0;

}



/* ===== Logo bigger ===== */

.logo img { height: 52px; }

.logo-text h1 { font-size: 18px; }



/* ===== Section Title accent line ===== */

.section-title::after {

    content: '';

    display: block;

    width: 48px;

    height: 3px;

    background: var(--accent);

    margin: 14px auto 0;

    border-radius: 2px;

}



/* ===== Responsive ===== */

@media (max-width: 1200px) {

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

    .cases-grid { grid-template-columns: repeat(2, 1fr); }

}

@media (max-width: 992px) {

    .products-grid { grid-template-columns: repeat(2, 1fr); }

}

@media (max-width: 768px) {

    .top-bar { display: none; }

    .header { top: 0; }

    .hero { margin-top: 60px; height: 50vh; min-height: 300px; }

    .hero-content h2 { font-size: 32px; }

    .hero-content p { font-size: 16px; }

    .hero-slide img { opacity: 0.3; }

    .page-banner { margin-top: 60px; padding: 60px 0; }

    .page-banner h1 { font-size: 32px; }

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

    .products-grid, .advantages-grid, .cases-grid { grid-template-columns: 1fr; }

    .cta h2 { font-size: 28px; }

    .mobile-call-bar { display: flex; }

    body { padding-bottom: 60px; }

    .float-contact { bottom: 80px; }

}

@media (max-width: 576px) {

    .products-grid { grid-template-columns: 1fr; }

    .cases-grid { grid-template-columns: 1fr; }

}



/* ===== Filter Buttons (shared by cases & news) ===== */
.industry-filter,
.category-filter {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px;
    margin-bottom: 40px;
}

.filter-btn {
    padding: 10px 24px;
    border: 1.5px solid var(--border-color, #e2e8f0);
    background: #fff;
    color: var(--text-secondary, #64748b);
    border-radius: 30px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
}

.filter-btn:hover {
    border-color: var(--accent);
    color: var(--accent);
}

.filter-btn.active {
    background: var(--accent);
    color: #fff;
    border-color: var(--accent);
}

/* ===== Cases Grid ===== */
.cases-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.case-card {
    background: #fff;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 2px 12px rgba(0,0,0,0.06);
    border: 1px solid var(--border-color, #e2e8f0);
    transition: all 0.3s ease;
}

.case-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 40px rgba(0,0,0,0.12);
    border-color: var(--accent);
}

.case-image {
    width: 100%;
    height: 220px;
    overflow: hidden;
    background: var(--bg-gray, #f1f5f9);
}

.case-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

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

.case-content {
    padding: 20px 24px 24px;
}

.case-tag {
    display: inline-block;
    font-size: 12px;
    font-weight: 600;
    color: var(--accent);
    background: rgba(201,157,59,0.1);
    padding: 4px 12px;
    border-radius: 20px;
    margin-bottom: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.case-title {
    font-size: 20px;
    font-weight: 700;
    color: var(--primary-dark);
    margin-bottom: 10px;
    line-height: 1.4;
}

.case-desc {
    font-size: 14px;
    color: var(--text-secondary, #64748b);
    line-height: 1.7;
    margin-bottom: 16px;
}

.case-meta {
    display: flex;
    gap: 20px;
    font-size: 13px;
    color: var(--text-muted, #94a3b8);
}

.case-meta span {
    display: flex;
    align-items: center;
    gap: 5px;
}

/* ===== News Grid ===== */
.news-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.news-card {
    background: #fff;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 2px 12px rgba(0,0,0,0.06);
    border: 1px solid var(--border-color, #e2e8f0);
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
}

.news-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 40px rgba(0,0,0,0.12);
    border-color: var(--accent);
}

.news-image {
    width: 100%;
    height: 200px;
    overflow: hidden;
    background: var(--bg-gray, #f1f5f9);
}

.news-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

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

.news-content {
    padding: 20px 24px 24px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.news-date {
    font-size: 13px;
    color: var(--text-muted, #94a3b8);
    display: flex;
    align-items: center;
    gap: 6px;
    margin-bottom: 10px;
}

.news-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--primary-dark);
    margin-bottom: 10px;
    line-height: 1.5;
}

.news-excerpt {
    font-size: 14px;
    color: var(--text-secondary, #64748b);
    line-height: 1.7;
    margin-bottom: 16px;
    flex: 1;
}

.news-tag {
    display: inline-block;
    font-size: 12px;
    font-weight: 600;
    color: var(--accent);
    background: rgba(201,157,59,0.1);
    padding: 4px 12px;
    border-radius: 20px;
    align-self: flex-start;
}

/* ===== Solutions Page ===== */
.solution-card {
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 2px 12px rgba(0,0,0,0.06);
    border: 1px solid var(--border-color, #e2e8f0);
    padding: 36px;
    margin-bottom: 30px;
    transition: all 0.3s ease;
}

.solution-card:hover {
    box-shadow: 0 8px 30px rgba(0,0,0,0.1);
}

.solution-header {
    margin-bottom: 24px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border-color, #e2e8f0);
}

.solution-header h2 {
    font-size: 24px;
    font-weight: 700;
    color: var(--primary-dark);
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 8px;
}

.solution-header .svg-icon-lg {
    color: var(--accent);
    flex-shrink: 0;
}

.solution-header > p {
    font-size: 15px;
    color: var(--text-secondary, #64748b);
    margin-left: 36px;
}

.solution-content {
    line-height: 1.8;
    color: var(--text-secondary, #475569);
}

.solution-content > p {
    margin-bottom: 20px;
}

.solution-features {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    margin: 24px 0;
}

.solution-feature {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    padding: 16px;
    background: var(--bg-gray, #f8fafc);
    border-radius: 8px;
    transition: all 0.3s ease;
}

.solution-feature:hover {
    background: rgba(201,157,59,0.06);
}

.solution-feature .icon {
    color: var(--accent);
    flex-shrink: 0;
    margin-top: 2px;
}

.solution-feature h4 {
    font-size: 15px;
    font-weight: 600;
    color: var(--primary-dark);
    margin-bottom: 4px;
}

.solution-feature p {
    font-size: 13px;
    color: var(--text-secondary, #64748b);
    line-height: 1.5;
}

.solution-process {
    display: flex;
    justify-content: space-between;
    gap: 20px;
    margin-top: 16px;
    flex-wrap: wrap;
}

.process-step {
    flex: 1;
    min-width: 120px;
    text-align: center;
    padding: 20px 10px;
    background: var(--bg-gray, #f8fafc);
    border-radius: 10px;
    transition: all 0.3s ease;
}

.process-step:hover {
    background: rgba(201,157,59,0.08);
    transform: translateY(-4px);
}

.step-number {
    width: 40px;
    height: 40px;
    background: var(--accent);
    color: #fff;
    font-size: 18px;
    font-weight: 700;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 10px;
}

.process-step h4 {
    font-size: 14px;
    font-weight: 600;
    color: var(--primary-dark);
}

/* ===== About Page Additional ===== */
.about-section .section-title,
.culture-section .section-title,
.history-section .section-title,
.qualification-section .section-title {
    text-align: center;
    font-size: 32px;
    font-weight: 700;
    color: var(--primary-dark);
    margin-bottom: 14px;
}

.about-section .section-title::after,
.culture-section .section-title::after,
.history-section .section-title::after,
.qualification-section .section-title::after {
    content: '';
    display: block;
    width: 48px;
    height: 3px;
    background: var(--accent);
    margin: 14px auto 0;
    border-radius: 2px;
}

/* ===== Page Content Section Spacing ===== */
.page-content {
    padding: 60px 0 80px;
    background: #fff;
}

.page-content .container {
    max-width: var(--max-width, 1200px);
    margin: 0 auto;
    padding: 0 20px;
}

/* ===== Responsive for sub-pages ===== */
@media (max-width: 1200px) {
    .cases-grid { grid-template-columns: repeat(2, 1fr); }
    .news-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 992px) {
    .solution-features { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
    .cases-grid { grid-template-columns: 1fr; }
    .news-grid { grid-template-columns: 1fr; }
    .industry-filter,
    .category-filter { gap: 6px; }
    .filter-btn { padding: 8px 16px; font-size: 13px; }
    .solution-card { padding: 24px; }
    .solution-process { flex-direction: column; }
    .case-title { font-size: 17px; }
    .news-title { font-size: 16px; }
    .case-image { height: 180px; }
    .news-image { height: 160px; }
}


/* ===== Article Detail Page ===== */
.article-detail {
    max-width: 800px !important;
    padding: 40px 20px;
}

.article-header {
    margin-bottom: 40px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border-color, #e2e8f0);
}

.article-header h1 {
    font-size: 32px;
    font-weight: 800;
    color: var(--primary-dark);
    line-height: 1.4;
    margin: 16px 0 12px;
}

.article-meta {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-top: 10px;
}

.article-body {
    font-size: 16px;
    color: var(--text-primary, #1e293b);
    line-height: 1.9;
}

.article-body h2 {
    font-size: 24px;
    font-weight: 700;
    color: var(--primary-dark);
    margin: 40px 0 16px;
    padding-bottom: 8px;
    border-bottom: 2px solid var(--accent);
    display: inline-block;
}

.article-body h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--primary-dark);
    margin: 24px 0 12px;
}

.article-body p {
    margin-bottom: 16px;
    color: var(--text-secondary, #475569);
}

.article-body ul {
    margin: 12px 0 20px 20px;
}

.article-body li {
    margin-bottom: 8px;
    color: var(--text-secondary, #475569);
    line-height: 1.7;
}

.article-body table {
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0;
    font-size: 14px;
}

.article-body th {
    background: var(--primary-dark);
    color: #fff;
    padding: 12px 16px;
    text-align: left;
    font-weight: 600;
}

.article-body td {
    padding: 10px 16px;
    border-bottom: 1px solid var(--border-color, #e2e8f0);
}

.article-body tr:nth-child(even) td {
    background: var(--bg-gray, #f8fafc);
}

/* Read more link in news cards */
.read-more-link {
    display: inline-block;
    margin-top: 8px;
    color: var(--accent);
    font-size: 14px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.2s;
}

.read-more-link:hover {
    color: var(--primary-dark);
    transform: translateX(4px);
}

/* ===== Contact form feedback ===== */
.form-feedback {
    display: none;
    padding: 14px 20px;
    border-radius: 8px;
    margin-top: 16px;
    font-size: 14px;
    font-weight: 500;
}

.form-feedback.success {
    display: block;
    background: #ecfdf5;
    color: #065f46;
    border: 1px solid #a7f3d0;
}

.form-feedback.error {
    display: block;
    background: #fef2f2;
    color: #991b1b;
    border: 1px solid #fecaca;
}



/* Responsive article */
@media (max-width: 768px) {
    .article-header h1 { font-size: 24px; }
    .article-body h2 { font-size: 20px; }
    .article-body { font-size: 15px; }
    .article-body table { font-size: 12px; }
    .article-body th, .article-body td { padding: 8px 10px; }
}


/* ===== Related Articles ===== */
.related-articles {
    margin-top: 60px;
    padding-top: 40px;
    border-top: 1px solid var(--border-color, #e2e8f0);
}

.related-articles h3 {
    font-size: 20px;
    font-weight: 700;
    color: var(--primary-dark);
    margin-bottom: 20px;
}

.related-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}

.related-card {
    background: var(--bg-gray, #f8fafc);
    border: 1px solid var(--border-color, #e2e8f0);
    border-radius: 8px;
    padding: 16px 20px;
    transition: all 0.3s ease;
}

.related-card:hover {
    background: #fff;
    border-color: var(--accent);
    box-shadow: 0 4px 12px rgba(0,0,0,0.06);
}

.related-card .news-tag {
    font-size: 11px;
    margin-bottom: 8px;
    display: inline-block;
}

.related-card a {
    display: block;
    font-size: 15px;
    font-weight: 600;
    color: var(--primary-dark);
    text-decoration: none;
    margin-top: 6px;
    line-height: 1.5;
}

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

@media (max-width: 768px) {
    .related-grid { grid-template-columns: 1fr; }
}


/* WeChat Modal */
.wx-modal { display: none; position: fixed; inset: 0; background: rgba(15,23,42,0.70); z-index: 99999; align-items: center; justify-content: center; }
.wx-modal.open { display: flex; }
.wx-modal-content { background: white; border-radius: 16px; padding: 30px; text-align: center; max-width: 320px; }
.wx-modal-content h4 { margin-bottom: 15px; color: var(--primary-dark); font-weight: 600; }
.wx-modal-content .qrcode-img { width: 200px; height: 200px; object-fit: contain; margin: 0 auto 15px; border-radius: 8px; display: block; }
.wx-modal-content p { font-size: 14px; color: var(--text-gray); }
.wx-modal-content .close-btn { margin-top: 15px; padding: 8px 24px; background: #e2e8f0; border: none; border-radius: 6px; cursor: pointer; font-size: 14px; font-weight: 500; }