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

:root {
    --primary-color: #4a6cf7;
    --secondary-color: #667eea;
    --dark-color: #1a1a2e;
    --light-color: #f8f9fa;
    --text-color: #333;
    --text-light: #666;
    --white: #fff;
    --transition: all 0.3s ease;
}

body {
    font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background: var(--white);
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

ul {
    list-style: none;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 导航栏 */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.98);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.08);
    transition: var(--transition);
}

.header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
}

.logo a {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--dark-color);
}

.logo span {
    color: var(--primary-color);
}

.nav-menu ul {
    display: flex;
    gap: 40px;
}

.nav-menu ul li {
    position: relative;
}

.nav-menu ul li > a {
    font-size: 1rem;
    font-weight: 500;
    color: var(--text-color);
    padding: 10px 0;
    display: block;
}

.nav-menu ul li > a:hover {
    color: var(--primary-color);
}

/* 下拉菜单 */
.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(10px);
    background: var(--white);
    min-width: 600px;
    border-radius: 12px;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.15);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    padding: 30px;
}

.has-dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

.dropdown-content {
    display: flex;
    gap: 40px;
}

/* 单列菜单样式 */
.dropdown-content.single-column {
    flex-direction: column;
    gap: 0;
    min-width: 280px;
}

.dropdown-content.single-column a {
    display: block;
    padding: 12px 20px;
    color: var(--text-color);
    font-size: 0.95rem;
    border-radius: 8px;
    transition: all 0.3s ease;
    position: relative;
}

.dropdown-content.single-column a::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 4px;
    height: 0;
    background: var(--primary-color);
    border-radius: 2px;
    transition: height 0.3s ease;
}

.dropdown-content.single-column a:hover {
    background: rgba(74, 108, 247, 0.08);
    color: var(--primary-color);
    padding-left: 25px;
}

.dropdown-content.single-column a:hover::before {
    height: 60%;
}

.dropdown-column h4 {
    font-size: 0.9rem;
    color: var(--text-light);
    margin-bottom: 15px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.dropdown-column a {
    display: block;
    padding: 8px 0;
    color: var(--text-color);
    font-size: 0.95rem;
}

.dropdown-column a:hover {
    color: var(--primary-color);
    padding-left: 5px;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 20px;
}

.phone {
    color: var(--text-color);
    font-weight: 500;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--white);
    padding: 12px 28px;
    border-radius: 30px;
    font-weight: 500;
    border: none;
    cursor: pointer;
    transition: var(--transition);
    display: inline-block;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(74, 108, 247, 0.3);
}

.btn-outline {
    border: 2px solid var(--white);
    color: var(--white);
    padding: 12px 28px;
    border-radius: 30px;
    font-weight: 500;
    background: transparent;
    display: inline-block;
}

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

/* 移动端菜单按钮 */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    z-index: 1001;
}

.mobile-menu-btn span {
    width: 25px;
    height: 3px;
    background: var(--dark-color);
    border-radius: 3px;
    transition: all 0.3s ease;
}

/* 移动端菜单按钮激活状态 */
.mobile-menu-btn.active span:nth-child(1) {
    transform: rotate(45deg) translate(7px, 7px);
}

.mobile-menu-btn.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-btn.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

/* Banner区域 */
.banner {
    position: relative;
    width: 100%;
    height: 400px;
    margin-top: 80px;
    overflow: hidden;
    display: flex;
    align-items: center;
}

/* 轮播容器 */
.banner-carousel {
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 2560px;
    height: 100%;
    z-index: 1;
}

/* 轮播项 */
.banner-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    opacity: 0;
    transition: opacity 0.8s ease-in-out;
}

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

/* 轮播遮罩层 */
.banner-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: none;
}

.banner .container {
    position: relative;
    z-index: 10;
    height: 400px;
    display: flex;
    align-items: center;
    justify-content: flex-start;
    max-width: 1400px;
    padding: 0 20px;
    margin: 0 auto;
    width: 100%;
}

.banner-content {
    max-width: 630px;
    color: var(--white);
    position: relative;
    z-index: 10;
    text-align: left;
}

.banner-title {
    font-size: 3.2rem;
    font-weight: 700;
    margin-bottom: 25px;
    text-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
    line-height: 1.2;
    transition: all 0.6s ease;
}

.banner-description {
    font-size: 1.1rem;
    line-height: 1.9;
    margin-bottom: 35px;
    opacity: 0.95;
    text-shadow: 0 1px 10px rgba(0, 0, 0, 0.3);
    transition: all 0.6s ease;
}

.banner-buttons {
    display: flex;
    gap: 15px;
}

.banner-buttons .btn-primary {
    padding: 14px 35px;
    font-size: 1.05rem;
    box-shadow: 0 10px 30px rgba(74, 108, 247, 0.4);
}

/* 轮播导航按钮 */
.banner-nav-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    z-index: 20;
    width: 50px;
    height: 50px;
    border: none;
    background: rgba(255, 255, 255, 0.3);
    color: white;
    font-size: 24px;
    cursor: pointer;
    border-radius: 50%;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.banner-nav-btn:hover {
    background: rgba(255, 255, 255, 0.5);
    transform: translateY(-50%) scale(1.1);
}

.banner-prev {
    left: 30px;
}

.banner-next {
    right: 30px;
}

/* 轮播指示点 */
.banner-dots {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 20;
    display: flex;
    gap: 12px;
}

.banner-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.5);
    cursor: pointer;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.banner-dot:hover {
    background: rgba(255, 255, 255, 0.8);
}

.banner-dot.active {
    background: white;
    width: 32px;
    border-radius: 6px;
}

/* 产品平台区域 */
.platform-section {
    padding: 100px 0;
    background: linear-gradient(180deg, #f8faff 0%, #fff 100%);
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--dark-color);
    margin-bottom: 15px;
}

.section-header p {
    font-size: 1.1rem;
    color: var(--text-light);
}

.platform-tabs {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 50px;
    flex-wrap: wrap;
}

.platform-tab {
    padding: 12px 30px;
    border: 2px solid #e0e6ed;
    border-radius: 30px;
    background: var(--white);
    cursor: pointer;
    transition: var(--transition);
    font-weight: 500;
}

.platform-tab:hover,
.platform-tab.active {
    border-color: var(--primary-color);
    color: var(--primary-color);
    background: rgba(74, 108, 247, 0.05);
}

.platform-cards {
    display: flex;
    gap: 25px;
    overflow: hidden;
    position: relative;
}

.platform-cards-wrapper {
    display: flex;
    gap: 25px;
        padding-top: 30px;
            padding-bottom: 30px;
    animation: scrollLeft 30s linear infinite;
    will-change: transform;
}

.platform-cards-wrapper:hover {
    animation-play-state: paused;
}

@keyframes scrollLeft {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(calc(-100% - 25px));
    }
}

.platform-card {
    background: var(--white);
    border-radius: 16px;
    padding: 30px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.06);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    position: relative;
    overflow: hidden;
    height: 357px;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    flex: 0 0 calc(25% - 18.75px);
    min-width: calc(25% - 18.75px);
}



/* 添加光晕效果 */
.platform-card::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(74, 108, 247, 0.15) 0%, transparent 70%);
    opacity: 0;
    transition: opacity 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 1;
    pointer-events: none;
}

.platform-card:hover::after {
    opacity: 1;
}

.platform-card > * {
    position: relative;
    z-index: 2;
}

.platform-card:hover {
    transform: translateY(-12px) scale(1.02);
    box-shadow: 0 25px 60px rgba(74, 108, 247, 0.2);
    border-radius: 20px;
}

.platform-card .icon {
    width: 60px;
    height: 60px;
    border-radius: 12px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    font-size: 1.5rem;
    color: var(--white);
}

.platform-card h3 {
    font-size: 1.15rem;
    margin-bottom: 12px;
    color: var(--dark-color);
    transition: all 0.3s ease;
}

.platform-card:hover h3 {
    color: var(--primary-color);
    transform: translateX(5px);
}

.platform-card p {
    font-size: 0.9rem;
    color: var(--text-light);
    line-height: 1.6;
    transition: all 0.3s ease;
}

.platform-card:hover p {
    color: var(--dark-color);
}

.platform-card .tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 15px;
}

.platform-card .tag {
    font-size: 0.75rem;
    padding: 4px 10px;
    background: #f0f4ff;
    color: var(--primary-color);
    border-radius: 20px;
    transition: all 0.3s ease;
    transform: translateY(0);
}

.platform-card:hover .tag {
    background: var(--primary-color);
    color: white;
    transform: translateY(-2px);
}

.platform-card:hover .tag:nth-child(1) {
    transition-delay: 0.05s;
}

.platform-card:hover .tag:nth-child(2) {
    transition-delay: 0.1s;
}

.platform-card:hover .tag:nth-child(3) {
    transition-delay: 0.15s;
}


/* 行业解决方案区域 */
.solutions-section {
    padding: 100px 0;
    background: var(--dark-color);
    color: var(--white);
}

.solutions-section .section-header h2 {
    color: var(--white);
}

.solutions-section .section-header p {
    color: rgba(255, 255, 255, 0.7);
}

/* 轮播容器 */
.solutions-carousel-wrapper {
    position: relative;
    display: flex;
    align-items: center;
    gap: 20px;
}

.solutions-carousel {
    flex: 1;
    overflow: hidden;
}

.solutions-grid {
    display: flex;
    gap: 30px;
    transition: transform 0.5s ease;
    width: fit-content;
}

.solutions-grid .solution-card {
    flex: 0 0 calc(33.333% - 20px);
    min-width: calc(33.333% - 20px);
}

/* 轮播导航按钮 */
.solutions-nav-btn {
    position: relative;
    width: 50px;
    height: 50px;
    border: none;
    background: rgba(255, 255, 255, 0.2);
    color: white;
    font-size: 24px;
    cursor: pointer;
    border-radius: 50%;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.solutions-nav-btn:hover {
    background: rgba(255, 255, 255, 0.4);
    transform: scale(1.1);
}

.solutions-prev {
    order: -1;
}

.solution-card {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 16px;
    padding: 35px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    height: 100%;
}

.solution-card:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-5px);
}

.solution-card h3 {
    font-size: 1.3rem;
    margin-bottom: 15px;
    flex-shrink: 0;
}

.solution-card p {
    font-size: 0.95rem;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 25px;
    line-height: 1.7;
    flex-shrink: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    cursor: help;
}

/* 自定义tooltip样式 */
.solution-card p[title] {
    position: relative;
}

.solution-card p[title]:hover::after {
    content: attr(title);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(0, 0, 0, 0.9);
    color: white;
    padding: 12px 16px;
    border-radius: 8px;
    font-size: 0.9rem;
    white-space: normal;
    word-wrap: break-word;
    max-width: 300px;
    z-index: 1000;
    margin-bottom: 10px;
    line-height: 1.6;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
    animation: tooltipFadeIn 0.3s ease;
}

.solution-card p[title]:hover::before {
    content: '';
    position: absolute;
    bottom: calc(100% - 8px);
    left: 50%;
    transform: translateX(-50%);
    border: 6px solid transparent;
    border-top-color: rgba(0, 0, 0, 0.9);
    z-index: 1000;
}

@keyframes tooltipFadeIn {
    from {
        opacity: 0;
        transform: translateX(-50%) translateY(5px);
    }
    to {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }
}

/* 案例图片画廊 */
.case-gallery {
    margin-top: auto;
    flex-shrink: 0;
}

.gallery-main {
    width: 100%;
 
    border-radius: 12px;
    overflow: hidden;
    margin-bottom: 10px;
    position: relative;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.gallery-main:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.4);
}

.gallery-main img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: all 0.6s ease;
}

.gallery-main:hover img {
    transform: scale(1.1);
}

/* 主图遮罩效果 */
.gallery-main::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom, transparent 0%, rgba(0,0,0,0.3) 100%);
    opacity: 0;
    transition: opacity 0.4s ease;
}

.gallery-main:hover::after {
    opacity: 1;
}

/* 缩略图网格 */
.gallery-thumbs {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
}

.thumb-item {
    width: 100%;
    height: 50px;
    border-radius: 8px;
    overflow: hidden;
    cursor: pointer;
    position: relative;
    transition: all 0.3s ease;
    border: 2px solid rgba(255, 255, 255, 0.1);
}

.thumb-item:hover {
    transform: translateY(-3px);
    border-color: var(--primary-color);
    box-shadow: 0 5px 15px rgba(74, 108, 247, 0.3);
}

.thumb-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: all 0.3s ease;
}

.thumb-item:hover img {
    transform: scale(1.15);
}

/* 缩略图遮罩 */
.thumb-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(74, 108, 247, 0.2);
    opacity: 0;
    transition: opacity 0.3s ease;
    z-index: 1;
}

.thumb-item:hover::before {
    opacity: 1;
}

/* 核心优势区域 */
.advantages-section {
    padding: 100px 0;
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.advantage-card {
    text-align: center;
    padding: 40px 30px;
}

.advantage-card .icon {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: linear-gradient(135deg, #f0f4ff 0%, #e8eeff 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 25px;
    font-size: 2rem;
}

.advantage-card h3 {
    font-size: 1.25rem;
    margin-bottom: 15px;
    color: var(--dark-color);
}

.advantage-card p {
    font-size: 0.95rem;
    color: var(--text-light);
    line-height: 1.7;
}

/* 客户logo墙展示 */
.clients-section {
    padding: 80px 0;
    background: #f8faff;
}

.clients-container {
    overflow: hidden;
    position: relative;
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.clients-row {
    overflow: hidden;
    position: relative;
}

.clients-wrapper {
    display: flex;
    gap: 30px;
    animation: scrollClientsLeft 40s linear infinite;
    will-change: transform;
}

.clients-row-reverse .clients-wrapper {
    animation: scrollClientsRight 40s linear infinite;
}

.clients-container:hover .clients-wrapper {
    animation-play-state: paused;
}

@keyframes scrollClientsLeft {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(calc(-50% - 15px));
    }
}

@keyframes scrollClientsRight {
    0% {
        transform: translateX(calc(-50% - 15px));
    }
    100% {
        transform: translateX(0);
    }
}

.client-logo {
    flex: 0 0 auto;
    background: var(--white);
    border-radius: 12px;
    padding: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    height: 140px;
    min-width: 220px;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
    cursor: pointer;
}

.client-logo:hover {
    transform: translateY(-8px) scale(1.05);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.12);
}

.client-logo img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    display: block;
    transition: all 0.3s ease;
}

.client-logo:hover img {
    transform: scale(1.1);
}


/* 资质证书区域 */
.certificates-section {
    padding: 100px 0;
    background: #f8f9fa;
}

.certificates-container {
    overflow: hidden;
    position: relative;
    padding: 20px 0;
}

.certificates-wrapper {
    display: flex;
    gap: 30px;
    animation: scrollCertificates 25s linear infinite;
    will-change: transform;
}

.certificates-wrapper:hover {
    animation-play-state: paused;
}

@keyframes scrollCertificates {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(calc(-100% - 30px));
    }
}

.certificate-item {
    flex: 0 0 calc(20% - 24px);
    min-width: calc(20% - 24px);
    background: var(--white);
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    display: flex;
    flex-direction: column;
}

.certificate-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.15);
}

.certificate-item img {
    width: 100%;
    height: auto;
    object-fit: contain;
    display: block;
    transition: all 0.4s ease;
    border-radius: 12px 12px 0 0;
}

.certificate-item:hover img {
    transform: scale(1.02);
}

.certificate-item p {
    padding: 15px;
    text-align: center;
    font-size: 0.9rem;
    color: var(--dark-color);
    font-weight: 500;
    background: #f8faff;
    margin: 0;
    border-radius: 0 0 12px 12px;
}

/* 页脚 */
.footer {
    background: var(--dark-color);
    color: var(--white);
    padding: 80px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr repeat(4, 1fr);
    gap: 50px;
    margin-bottom: 50px;
}

.footer-brand {
    text-align: center;
}

.footer-brand .logo {
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 20px;
    display: inline-block;
}

.footer-brand .logo span {
    color: var(--primary-color);
}

.footer-brand p {
    color: rgba(255, 255, 255, 0.6);
    line-height: 1.7;
}

.footer-column h4 {
    font-size: 1rem;
    margin-bottom: 20px;
}

.footer-column a {
    display: block;
    color: rgba(255, 255, 255, 0.6);
    padding: 8px 0;
    font-size: 0.9rem;
}

.footer-column a:hover {
    color: var(--white);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 30px;
    text-align: center;
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.9rem;
}

/* 响应式设计 */
@media (max-width: 1200px) {
    .platform-card {
        flex: 0 0 calc(50% - 12.5px);
        min-width: calc(50% - 12.5px);
    }
}

@media (max-width: 992px) {
    .nav-menu {
        position: fixed;
        top: 80px;
        left: 0;
        width: 100%;
        height: calc(100vh - 80px);
        background: var(--white);
        display: flex;
        flex-direction: column;
        padding: 0;
        transform: translateX(-100%);
        transition: transform 0.3s ease;
        overflow-y: auto;
        overflow-x: hidden;
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
        z-index: 999;
    }

    .nav-menu.active {
        transform: translateX(0);
    }

    .nav-menu ul {
        display: flex;
        flex-direction: column;
        width: 100%;
        padding: 0;
        margin: 0;
    }

    .nav-menu ul li {
        width: 100%;
        border-bottom: 1px solid #f0f0f0;
    }

    .nav-menu ul li > a {
        display: block;
        padding: 18px 20px;
        font-size: 1.05rem;
        position: relative;
        width: 100%;
    }

    /* 移动端下拉菜单指示器 */
    .has-dropdown > a::after {
        content: '▼';
        position: absolute;
        right: 20px;
        top: 50%;
        transform: translateY(-50%);
        font-size: 0.75rem;
        transition: transform 0.3s ease;
    }

    .has-dropdown.active > a::after {
        transform: translateY(-50%) rotate(180deg);
    }

    /* 移动端下拉菜单 */
    .dropdown-menu {
        position: static !important;
        transform: none !important;
        box-shadow: none;
        padding: 0;
        margin: 0;
        min-width: auto;
        width: 100%;
        left: 0;
        right: 0;
        background: #f8f9fa;
        border-radius: 0;
        max-height: 0;
        overflow: hidden;
        opacity: 1;
        visibility: visible;
        transition: max-height 0.4s ease, padding 0.4s ease;
    }

    .has-dropdown.active .dropdown-menu {
        max-height: 1000px;
        padding: 5px 0;
    }

    .dropdown-content {
        display: flex;
        flex-direction: column;
        width: 100%;
        margin: 0;
        padding: 0;
    }

    .dropdown-content.single-column {
        min-width: auto;
        width: 100%;
        gap: 0;
        margin: 0;
        padding: 0;
    }

    .dropdown-content.single-column a {
        display: block;
        padding: 14px 20px 14px 40px !important;
        font-size: 0.95rem;
        background: transparent !important;
        white-space: normal;
        word-wrap: break-word;
        line-height: 1.5;
        width: 100%;
        box-sizing: border-box;
        position: static;
        border-radius: 0;
        color: var(--text-color);
    }

    .dropdown-content.single-column a:hover {
        background: rgba(74, 108, 247, 0.1) !important;
        padding-left: 45px !important;
        color: var(--primary-color);
    }

    .dropdown-content.single-column a::before {
        display: none !important;
        content: none !important;
    }

    .mobile-menu-btn {
        display: flex;
    }

    /* 移动端隐藏电话号码 */
    .header-right .phone {
        display: none;
    }

    /* 移动端header-right靠右 */
    .header-right {
        margin-left: auto;
    }

    /* 移动端优化立即咨询按钮 */
    .header-right .btn-primary {
        padding: 10px 20px;
        font-size: 0.9rem;
        white-space: nowrap;
    }

    .hero-content h1 {
        font-size: 2.5rem;
    }

    /* 中等屏幕平台卡片优化 */
    .platform-card {
        flex: 0 0 calc(50% - 12.5px);
        min-width: calc(50% - 12.5px);
        height: 340px;
    }

    .platform-card h3 {
        font-size: 1.05rem;
    }

    .platform-card p {
        font-size: 0.88rem;
    }

    .solutions-grid .solution-card {
        flex: 0 0 calc(50% - 15px);
        min-width: calc(50% - 15px);
    }

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

    .gallery-main {
        height: 220px;
    }

    .thumb-item {
        height: 70px;
    }

    .certificate-item {
        flex: 0 0 calc(33.333% - 20px);
        min-width: calc(33.333% - 20px);
    }

    .client-logo {
        min-width: 180px;
        height: 120px;
    }

    .clients-container {
        gap: 20px;
    }

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

@media (max-width: 768px) {
    .hero {
        margin-top: 60px;
    }

    .section-header h2 {
        font-size: 2rem;
    }

    /* 移动端平台卡片优化 */
    .platform-cards {
        padding: 0 10px;
        width: 100%;
        max-width: 100vw;
        overflow-x: hidden;
    }

    .platform-cards-wrapper {
        gap: 15px !important;
        padding-top: 20px;
        padding-bottom: 20px;
    }

    /* 移动端滚动动画调整 */
    @keyframes scrollLeft {
        0% {
            transform: translateX(0);
        }
        100% {
            transform: translateX(calc(-50% - 7.5px));
        }
    }

    .platform-card {
        flex: 0 0 calc(100vw - 40px) !important;
        min-width: calc(100vw - 40px) !important;
        max-width: calc(100vw - 40px) !important;
        width: calc(100vw - 40px) !important;
        height: auto !important;
        min-height: 320px;
        padding: 25px 20px !important;
        box-sizing: border-box;
    }

    .platform-card h3 {
        font-size: 1.1rem;
        margin-bottom: 10px;
        overflow: hidden;
        text-overflow: ellipsis;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        line-height: 1.4;
    }

    .platform-card p {
        font-size: 0.85rem;
        line-height: 1.5;
        overflow: hidden;
        text-overflow: ellipsis;
        display: -webkit-box;
        -webkit-line-clamp: 5;
        -webkit-box-orient: vertical;
        max-height: calc(1.5em * 5);
    }

    .platform-card .tags {
        margin-top: 12px;
        gap: 6px;
    }

    .platform-card .tag {
        font-size: 0.7rem;
        padding: 3px 8px;
    }

    /* 移动端禁用悬停效果 */
    .platform-card:hover {
        transform: none;
    }

    .platform-cards-wrapper:hover {
        animation-play-state: running;
    }

    .solutions-carousel-wrapper {
        gap: 10px;
    }

    .solutions-nav-btn {
        width: 40px;
        height: 40px;
        font-size: 18px;
    }

    .solutions-grid .solution-card {
        flex: 0 0 100%;
        min-width: 100%;
    }

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

    .gallery-main {
        height: 200px;
    }

    .thumb-item {
        height: 60px;
    }

    .gallery-thumbs {
        gap: 8px;
    }

    .certificate-item {
        flex: 0 0 calc(50% - 15px);
        min-width: calc(50% - 15px);
    }

    .client-logo {
        min-width: 150px;
        height: 100px;
        padding: 15px;
    }

    .clients-container {
        gap: 15px;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    /* 小屏幕进一步优化按钮 */
    .header-right .btn-primary {
        padding: 8px 16px;
        font-size: 0.85rem;
    }

    /* Banner移动端适配 */
    .banner {
        margin-top: 60px;
        height: 300px;
    }

    .banner .container {
        height: 300px;
        padding: 20px;
    }

    .banner-title {
        font-size: 2rem;
    }

    .banner-description {
        font-size: 0.95rem;
    }

    .banner-buttons .btn-primary {
        padding: 12px 25px;
        font-size: 1rem;
    }

    /* 移动端轮播按钮 */
    .banner-nav-btn {
        width: 40px;
        height: 40px;
        font-size: 18px;
    }

    .banner-prev {
        left: 15px;
    }

    .banner-next {
        right: 15px;
    }

    /* 移动端指示点 */
    .banner-dots {
        bottom: 20px;
        gap: 8px;
    }

    .banner-dot {
        width: 10px;
        height: 10px;
    }

    .banner-dot.active {
        width: 28px;
    }
}

/* 二维码弹窗 */
.qr-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 10000;
    display: none;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.qr-modal.active {
    display: flex;
    opacity: 1;
}

.qr-modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.75);
    backdrop-filter: blur(8px);
}

.qr-modal-content {
    position: relative;
    background: var(--white);
    border-radius: 20px;
    padding: 40px;
    max-width: 450px;
    width: 90%;
    text-align: center;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    transform: scale(0.9);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 1;
}

.qr-modal.active .qr-modal-content {
    transform: scale(1);
}

.qr-close-btn {
    position: absolute;
    top: 15px;
    right: 15px;
    width: 40px;
    height: 40px;
    border: none;
    background: #f0f0f0;
    border-radius: 50%;
    font-size: 28px;
    line-height: 1;
    color: #666;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.qr-close-btn:hover {
    background: var(--primary-color);
    color: white;
    transform: rotate(90deg);
}

.qr-modal-content h3 {
    font-size: 1.8rem;
    color: var(--dark-color);
    margin-bottom: 10px;
}

.qr-modal-content > p {
    color: var(--text-light);
    margin-bottom: 25px;
    font-size: 1rem;
}

.qr-code-container {
    background: #f8f9fa;
    border-radius: 16px;
    padding: 30px;
    margin: 20px 0;
    display: inline-block;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
}

.qr-code-container img {
    width: 220px;
    height: 220px;
    display: block;
    border-radius: 8px;
}

.qr-tip {
    color: var(--text-light);
    font-size: 0.9rem;
    margin-top: 15px;
}

/* 二维码弹窗响应式 */
@media (max-width: 768px) {
    .qr-modal-content {
        padding: 30px 20px;
    }

    .qr-modal-content h3 {
        font-size: 1.5rem;
    }

    .qr-code-container {
        padding: 20px;
    }

    .qr-code-container img {
        width: 180px;
        height: 180px;
    }
}