/* 右侧悬浮按钮 */
.floating-buttons {
    position: fixed;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
    z-index: 1000;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.floating-button {
    position: relative;
    display: flex;
    align-items: center;
    padding: 0 15px;
    height: 40px;
    background: rgba(66, 153, 225, 0.95);
    border-radius: 20px;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.floating-button i {
    font-size: 16px;
    color: white;
    margin-right: 8px;
}

.floating-button span {
    color: white;
    font-size: 14px;
    white-space: nowrap;
}

.floating-button:hover {
    background: #4299e1;
    box-shadow: 0 4px 15px rgba(66, 153, 225, 0.3);
    transform: translateX(-5px);
}

/* 联系弹窗 */
.contact-popup {
    position: absolute;
    right: calc(100% + 15px);
    top: 50%;
    transform: translateY(-50%);
    background: white;
    padding: 20px;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    width: 240px;
    text-align: center;
    z-index: 1001;
}

.floating-button:hover .contact-popup {
    opacity: 1;
    visibility: visible;
}

/* 电话弹窗 */
.phone-button .popup-content p {
    color: #666;
    font-size: 13px;
    margin: 0 0 10px;
}

.phone-button .phone-number {
    color: #4299e1;
    font-size: 22px;
    font-weight: 600;
    margin: 10px 0 15px;
}

.call-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    background: linear-gradient(135deg, #4299e1, #63b3ed);
    color: white;
    padding: 8px 20px;
    border-radius: 20px;
    text-decoration: none;
    font-size: 14px;
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(66, 153, 225, 0.2);
}

.call-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(66, 153, 225, 0.3);
}

/* 微信弹窗 */
.wechat-button .popup-content img {
    width: 140px;
    height: 140px;
    margin-bottom: 10px;
    border-radius: 8px;
}

.wechat-button .popup-content p {
    color: #666;
    font-size: 13px;
    margin: 0;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .floating-buttons {
        right: 10px;
    }
    
    .floating-button {
        height: 36px;
        padding: 0 12px;
    }
    
    .floating-button i {
        font-size: 14px;
    }
    
    .floating-button span {
        font-size: 13px;
    }
    
    .contact-popup {
        width: 200px;
        right: calc(100% + 10px);
    }
    
    .phone-button .phone-number {
        font-size: 20px;
    }
    
    .wechat-button .popup-content img {
        width: 120px;
        height: 120px;
    }
}

/* Banner样式 */
.banner {
    height: 100vh;
    background: url('../images/banner-bg.jpg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    padding-top: 90px;
}

.banner::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 30%, rgba(66, 153, 225, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 80% 70%, rgba(121, 187, 255, 0.05) 0%, transparent 50%);
    pointer-events: none;
}

.banner .container {
    position: relative;
    z-index: 1;
    text-align: center;
    animation: fadeIn 1s ease-out;
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 20px;
}

.banner h1 {
    font-size: 3.5rem;
    color: #2d3748;
    margin-bottom: 1.5rem;
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.5px;
    text-shadow: 1px 1px 0 rgba(255, 255, 255, 0.5);
}

.banner p {
    font-size: 1.5rem;
    color: #4a5568;
    margin-bottom: 2.5rem;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.5;
    font-weight: 400;
}

.banner .cta-button {
    display: inline-block;
    padding: 1.2rem 3rem;
    font-size: 1.1rem;
    font-weight: 600;
    color: #ffffff;
    background: linear-gradient(135deg, #4299e1, #63b3ed);
    border-radius: 50px;
    text-decoration: none;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(66, 153, 225, 0.3);
    position: relative;
    overflow: hidden;
}

.banner .cta-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.2),
        transparent
    );
    transition: 0.5s;
}

.banner .cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(66, 153, 225, 0.4);
}

.banner .cta-button:hover::before {
    left: 100%;
}

@media (max-width: 768px) {
    .banner {
        min-height: 100vh;
        padding-top: 60px;
    }

    .banner h1 {
        font-size: 2.5rem;
        margin-bottom: 1rem;
    }

    .banner p {
        font-size: 1.2rem;
        margin-bottom: 2rem;
        padding: 0 15px;
    }

    .banner .cta-button {
        padding: 1rem 2.5rem;
        font-size: 1rem;
    }
}

@media (min-width: 1440px) {
    .banner h1 {
        font-size: 4rem;
    }

    .banner p {
        font-size: 1.7rem;
    }
}

/* 全局变量 */
:root {
    --primary-color: #4299e1;
    --secondary-color: #79bbff;
    --text-color: #333;
    --light-text: #fff;
    --dark-bg: #333;
    --card-bg: #444;
    --gradient-start: #1a1a1a;
    --gradient-end: #2d2d2d;
    --shadow-sm: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 15px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 8px 25px rgba(0, 0, 0, 0.15);
    --border-radius-sm: 10px;
    --border-radius-md: 15px;
    --border-radius-lg: 20px;
    --transition-base: all 0.3s ease;
    --container-width: 1200px;
    --section-spacing: 80px;
}

/* 基础重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    overflow-x: hidden;
}

/* 通用容器 */
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 20px;
    width: 100%;
}

/* 通用部分样式 */
.section-header {
    text-align: center;
    margin-bottom: 50px;
}

.section-header h2 {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 15px;
    font-weight: 600;
}

.section-header p {
    font-size: 1.2rem;
    color: var(--text-color);
    opacity: 0.8;
}

/* 通用动画 */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes slideIn {
    from { transform: translateX(-100%); }
    to { transform: translateX(0); }
}

@keyframes slideInRight {
    from { transform: translateX(100%); }
    to { transform: translateX(0); }
}

@keyframes slideInUp {
    from { transform: translateY(100%); }
    to { transform: translateY(0); }
}


/* 响应式断点 */
@media (max-width: 1200px) {
    :root {
        --container-width: 960px;
    }
}

@media (max-width: 992px) {
    :root {
        --container-width: 720px;
    }
}

@media (max-width: 768px) {
    :root {
        --container-width: 540px;
        --section-spacing: 60px;
    }
    
    .section-header h2 {
        font-size: 2rem;
    }
}

@media (max-width: 576px) {
    :root {
        --container-width: 100%;
    }
}

/* 导航栏样式 */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-base);
}

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

.navbar {
    height: 80px;
    display: flex;
    align-items: center;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
}

.logo img {
    height: 50px;
    transition: var(--transition-base);
}

.nav-links {
    display: flex;
    align-items: center;
    list-style: none;
}

.nav-links li {
    margin-left: 2rem;
    position: relative;
}

.nav-links li:last-child {
    margin-left: 3rem;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-color);
    font-size: 1rem;
    font-weight: 500;
    padding: 0.5rem 0;
    transition: var(--transition-base);
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: var(--transition-base);
}

.nav-links a:hover {
    color: var(--primary-color);
}

.nav-links a:hover::after {
    width: 100%;
}

.nav-trial-btn {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white !important;
    padding: 0.8rem 1.5rem !important;
    border-radius: var(--border-radius-sm);
    transition: var(--transition-base);
}

.nav-trial-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.nav-trial-btn::after {
    display: none;
}

@media (max-width: 768px) {
    .logo img {
        height: 45px;
    }
}

/* 行业应用样式 */
.industries-section {
    padding: 80px 0;
    background: linear-gradient(135deg, #f8fafc 0%, #fff 100%);
    position: relative;
    overflow: hidden;
}

.industries-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    position: relative;
    z-index: 1;
}

.industries-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 25px;
    margin-top: 50px;
}

.industry-item {
    background: white;
    border-radius: 15px;
    padding: 30px;
    text-align: center;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
}

.industry-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    opacity: 0;
    transition: opacity 0.3s ease;
}

.industry-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
}

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

.industry-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #f0f7ff;
    border-radius: 12px;
    color: var(--primary-color);
    font-size: 24px;
    transition: all 0.3s ease;
}

.industry-item:hover .industry-icon {
    background: var(--primary-color);
    color: white;
    transform: rotateY(360deg);
}

.industry-title {
    font-size: 1.3rem;
    color: var(--primary-color);
    margin-bottom: 15px;
    font-weight: 600;
}

.industry-description {
    font-size: 1rem;
    line-height: 1.6;
    color: var(--text-color);
    opacity: 0.9;
    margin-bottom: 20px;
}

.industry-features {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    justify-content: center;
}

.industry-feature {
    background: #f0f7ff;
    color: var(--primary-color);
    padding: 4px 12px;
    border-radius: 15px;
    font-size: 0.85rem;
    transition: all 0.3s ease;
}

.industry-item:hover .industry-feature {
    background: var(--primary-color);
    color: white;
}

@media (max-width: 1024px) {
    .industries-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
}

@media (max-width: 768px) {
    .industries-section {
        padding: 60px 0;
    }

    .industries-grid {
        grid-template-columns: 1fr;
        gap: 20px;
        margin-top: 30px;
    }

    .industry-item {
        padding: 25px;
    }

    .industry-icon {
        width: 50px;
        height: 50px;
        font-size: 20px;
    }

    .industry-title {
        font-size: 1.2rem;
    }
}

/* 产品介绍样式 */
.product-section {
    padding: 80px 0;
    background-color: #f8fafc;
}

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

.section-header h2 {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 15px;
    font-weight: 600;
}

.section-header p {
    font-size: 1.2rem;
    color: var(--text-color);
    opacity: 0.8;
}

.product-item {
    display: flex;
    align-items: center;
    margin: 80px auto;
    max-width: 1200px;
    gap: 80px;
    padding: 0 20px;
}

.product-item.reverse {
    flex-direction: row-reverse;
}

.product-image {
    flex: 0 0 400px;
}

.product-image img {
    width: 100%;
    height: auto;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.product-image img:hover {
    transform: translateY(-5px);
}

.product-content {
    flex: 1;
}

.product-content h3 {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 25px;
    font-weight: 600;
    position: relative;
    padding-bottom: 15px;
}

.product-content h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 60px;
    height: 3px;
    background-color: var(--primary-color);
    border-radius: 2px;
}

.product-content .description {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--text-color);
    margin-bottom: 25px;
    opacity: 0.9;
}

.product-content .features {
    background: white;
    padding: 20px 25px;
    border-radius: 10px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.product-content .features-title {
    font-size: 1.1rem;
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: 12px;
}

.product-content .features-list {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin: 0;
    padding: 0;
    list-style: none;
}

.product-content .feature-item {
    background: #f0f7ff;
    color: var(--primary-color);
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 0.95rem;
}

@media (max-width: 768px) {
    .product-section {
        padding: 60px 0;
    }

    .section-header {
        margin-bottom: 40px;
    }

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

    .product-item, .product-item.reverse {
        flex-direction: column;
        gap: 40px;
        margin: 60px auto;
        padding: 0 15px;
    }

    .product-image {
        flex: 0 0 auto;
        width: 100%;
        max-width: 400px;
        margin: 0 auto;
    }

    .product-content h3 {
        font-size: 1.8rem;
        text-align: center;
    }

    .product-content h3::after {
        left: 50%;
        transform: translateX(-50%);
    }

    .features-list {
        justify-content: center;
    }
}

/* 合作案例样式 */
.cases-section {
    padding: 80px 0;
    background: linear-gradient(to bottom, #fff, #f8fafc);
}

.cases-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.cases-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 50px;
}

.case-item {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

.case-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
}

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

.case-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

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

.case-content {
    padding: 25px;
}

.case-title {
    font-size: 1.3rem;
    color: var(--primary-color);
    margin-bottom: 12px;
    font-weight: 600;
}

.case-description {
    font-size: 1rem;
    line-height: 1.6;
    color: var(--text-color);
    opacity: 0.9;
    margin-bottom: 20px;
}

.case-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.case-tag {
    background: #f0f7ff;
    color: var(--primary-color);
    padding: 4px 12px;
    border-radius: 15px;
    font-size: 0.85rem;
}

@media (max-width: 1024px) {
    .cases-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .cases-section {
        padding: 60px 0;
    }

    .cases-grid {
        grid-template-columns: 1fr;
        gap: 20px;
        margin-top: 30px;
    }

    .case-image {
        height: 180px;
    }

    .case-content {
        padding: 20px;
    }

    .case-title {
        font-size: 1.2rem;
    }
}

/* 应用行业样式 */
.industries {
    padding: 5rem 0;
    background-color: var(--light-bg);
}

.industry-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.industry-item {
    text-align: center;
    padding: 2rem;
    background: var(--white);
    border-radius: 10px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    transition: transform 0.3s;
}

.industry-item:hover {
    transform: translateY(-5px);
}

.industry-item i {
    font-size: 3rem;
    color: var(--secondary-color);
    margin-bottom: 1rem;
}

/* 关于我们和联系我们样式 */
.about-contact-section {
    padding: 80px 0;
    background: linear-gradient(135deg, #1a1a1a, #2d2d2d);
    color: #fff;
    position: relative;
    overflow: hidden;
}

.about-contact-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 20% 30%, rgba(66, 153, 225, 0.05) 0%, transparent 50%),
                radial-gradient(circle at 80% 70%, rgba(121, 187, 255, 0.05) 0%, transparent 50%);
    pointer-events: none;
}

.info-cards {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
    margin-top: 30px;
}

.info-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: 15px;
    padding: 20px;
    flex: 0 1 300px;
    min-width: 250px;
}

.info-card h3 {
    color: #fff;
    font-size: 1.3rem;
    margin-bottom: 15px;
    position: relative;
    padding-bottom: 10px;
}

.contact-card .contact-list p {
    margin-bottom: 8px;
    font-size: 0.9rem;
}

.qrcode-card img {
    width: 120px;
    height: 120px;
    margin-bottom: 8px;
}

.qrcode-card p {
    font-size: 0.9rem;
}

@media (max-width: 768px) {
    .info-cards {
        flex-direction: column;
        align-items: center;
    }
    
    .info-card {
        width: 100%;
        max-width: 300px;
        margin-bottom: 20px;
    }
}

/* 联系我们样式 */
.contact-section {
    position: relative;
    padding: 80px 0;
    background: #303133;
    overflow: hidden;
}

.contact-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        linear-gradient(90deg, 
            transparent 0%, 
            rgba(255, 255, 255, 0.03) 25%, 
            rgba(255, 255, 255, 0.03) 75%, 
            transparent 100%);
    background-size: 400px 100%;
    animation: moveBackground 20s linear infinite;
}

@keyframes moveBackground {
    0% {
        background-position: 0% 0;
    }
    100% {
        background-position: 400px 0;
    }
}

.contact-section .section-header h2,
.contact-section .section-header p {
    color: #fff;
    position: relative;
}

.contact-section .info-cards {
    position: relative;
    z-index: 1;
}

.info-card {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    padding: 25px;
    flex: 0 1 300px;
    min-width: 250px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.info-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

.info-card h3 {
    color: #fff;
    font-size: 1.3rem;
    margin-bottom: 15px;
    position: relative;
    padding-bottom: 10px;
}

.info-card h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 2px;
    background: #409EFF;
}

.contact-card .contact-list p {
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 8px;
    font-size: 0.9rem;
}

.qrcode-card p {
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.9rem;
}

@media (max-width: 768px) {
    .contact-section {
        padding: 60px 0;
    }
    
    .info-cards {
        flex-direction: column;
        align-items: center;
    }
    
    .info-card {
        width: 100%;
        max-width: 300px;
        margin-bottom: 20px;
    }
}

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

@keyframes slideInLeft {
    from { transform: translateX(-100%); }
    to { transform: translateX(0); }
}

@keyframes slideInRight {
    from { transform: translateX(100%); }
    to { transform: translateX(0); }
}

@keyframes slideInUp {
    from { transform: translateY(100%); }
    to { transform: translateY(0); }
}


/* 响应式调整 */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .product-item, .product-item.reverse {
        flex-direction: column;
        gap: 30px;
        padding: 0 15px;
    }

    .product-image {
        flex: 0 0 auto;
        width: 100%;
        max-width: 400px;
        margin: 0 auto;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
    }
    
    .qrcode-section {
        grid-template-columns: 1fr;
    }
    
    .qrcode-item img {
        width: 150px;
        height: 150px;
    }
    
    .banner h1 {
        font-size: 2rem;
    }
    
    .banner p {
        font-size: 1.2rem;
    }
}

/* 动画效果 */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeIn 1s ease-out;
}

/* 页脚样式 */
.footer {
    background: #303133;
    color: rgba(255, 255, 255, 0.8);
    padding: 20px 0;
    text-align: center;
}

.footer .container {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 20px;
}

.footer p {
    margin: 0;
    font-size: 0.9rem;
}

@media (max-width: 768px) {
    .footer .container {
        flex-direction: row;
        padding: 0 15px;
        gap: 10px;
    }

    .footer p {
        font-size: 0.8rem;
    }
}

/* 关于我们样式 */
.about-section {
    padding: 80px 0;
    background: linear-gradient(135deg, #f8fafc 0%, #fff 100%);
    position: relative;
}

.about-stats {
    display: flex;
    justify-content: space-around;
    flex-wrap: wrap;
    margin: 50px auto;
    max-width: 1200px;
    gap: 30px;
}

.stat-item {
    text-align: center;
    padding: 20px;
    flex: 1;
    min-width: 200px;
    background: #fff;
    border-radius: 15px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease;
}

.stat-item:hover {
    transform: translateY(-5px);
}

.stat-number {
    font-size: 2.5rem;
    font-weight: bold;
    color: #409EFF;
    margin-bottom: 10px;
}

.stat-label {
    font-size: 1.1rem;
    color: #666;
}

.about-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

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

.about-text h3 {
    font-size: 1.8rem;
    color: #303133;
    margin-bottom: 20px;
}

.about-text p {
    color: #666;
    line-height: 1.8;
    font-size: 1.1rem;
    max-width: 800px;
    margin: 0 auto;
}

.about-features {
    display: flex;
    justify-content: space-around;
    flex-wrap: wrap;
    gap: 30px;
}

.feature-item {
    flex: 1;
    min-width: 250px;
    display: flex;
    align-items: flex-start;
    padding: 20px;
    background: #fff;
    border-radius: 15px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease;
}

.feature-item:hover {
    transform: translateY(-5px);
}

.feature-icon {
    font-size: 2rem;
    margin-right: 15px;
    color: #409EFF;
}

.feature-text h4 {
    font-size: 1.2rem;
    color: #303133;
    margin-bottom: 8px;
}

.feature-text p {
    color: #666;
    font-size: 0.9rem;
    line-height: 1.6;
}

@media (max-width: 768px) {
    .about-stats {
        padding: 0 20px;
    }
    
    .stat-item {
        min-width: 150px;
    }
    
    .stat-number {
        font-size: 2rem;
    }
    
    .stat-label {
        font-size: 1rem;
    }
    
    .feature-item {
        min-width: 100%;
    }
    
    .about-text h3 {
        font-size: 1.5rem;
    }
    
    .about-text p {
        font-size: 1rem;
    }
}

/* 产品特色样式 */
.features-section {
    padding: 80px 0;
    background: linear-gradient(135deg, #fff 0%, #f8fafc 100%);
}

.features-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 30px;
    max-width: 1200px;
    margin: 40px auto 0;
    padding: 0 20px;
}

.feature-item {
    background: #fff;
    border-radius: 15px;
    padding: 30px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.feature-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
}

.feature-icon {
    width: 60px;
    height: 60px;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #409EFF 0%, #66b1ff 100%);
    border-radius: 15px;
    color: white;
}

.feature-icon i {
    font-size: 24px;
}

.feature-content {
    text-align: center;
    width: 100%;
}

.feature-content h3 {
    color: #303133;
    font-size: 1.3rem;
    margin-bottom: 15px;
    position: relative;
    padding-bottom: 15px;
}

.feature-content h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 40px;
    height: 2px;
    background: #409EFF;
}

.feature-content p {
    color: #666;
    font-size: 0.95rem;
    line-height: 1.6;
    margin-bottom: 20px;
}

.feature-list {
    list-style: none;
    padding: 0;
    margin: 0;
    width: 100%;
}

.feature-list li {
    display: flex;
    align-items: center;
    margin-bottom: 10px;
    color: #666;
    font-size: 0.9rem;
    padding-left: 10px;
}

.feature-list li i {
    color: #409EFF;
    margin-right: 10px;
    font-size: 14px;
    flex-shrink: 0;
}

@media (max-width: 768px) {
    .features-section {
        padding: 60px 0;
    }

    .features-container {
        grid-template-columns: 1fr;
        gap: 20px;
        padding: 0 15px;
    }

    .feature-item {
        padding: 25px;
    }

    .feature-icon {
        width: 50px;
        height: 50px;
    }

    .feature-icon i {
        font-size: 20px;
    }

    .feature-content h3 {
        font-size: 1.2rem;
    }

    .feature-content p {
        font-size: 0.9rem;
    }

    .feature-list li {
        font-size: 0.85rem;
    }
}

.qrcode-card .qrcode-container {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 20px;
}

.qrcode-card .qrcode-item {
    text-align: center;
}

.qrcode-card img {
    width: 140px;
    height: 140px;
    margin-bottom: 10px;
}

.qrcode-card p {
    font-size: 14px;
    color: #666;
    margin: 0;
}

@media (max-width: 768px) {
    .qrcode-card .qrcode-container {
        flex-direction: column;
        align-items: center;
    }
    
    .qrcode-card img {
        width: 140px;
        height: 140px;
    }
}

/* 合作客户样式 */
.clients-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    padding: 40px 0;
}

.client-item {
    background: #fff;
    border-radius: 10px;
    padding: 30px;
    text-align: center;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.client-item:hover {
    transform: translateY(-5px);
}

.client-avatar {
    width: 120px;
    height: 120px;
    margin: 0 auto 20px;
    border-radius: 50%;
    overflow: hidden;
    border: 4px solid var(--primary-color);
}

.client-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.client-info h3 {
    color: #333;
    font-size: 1.2rem;
    margin-bottom: 8px;
}

.client-role {
    color: var(--primary-color);
    font-size: 0.9rem;
    margin-bottom: 15px;
}

.client-desc {
    color: #666;
    font-size: 0.95rem;
    line-height: 1.6;
    font-style: italic;
}

@media (max-width: 768px) {
    .clients-grid {
        grid-template-columns: 1fr;
        gap: 20px;
        padding: 20px 0;
    }

    .client-item {
        padding: 20px;
    }

    .client-avatar {
        width: 100px;
        height: 100px;
    }
}