* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Microsoft YaHei', sans-serif;
    overflow-x: hidden;
    position: relative;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
}

header {
    background-color: transparent;
    padding: 15px 0;
    position: fixed;
    width: 100%;
    top: 0;
    left: 0;
    z-index: 1000;
    transition: all 0.3s ease;
}

header:not(.at-top) {
    background-color: #fff;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

nav {
    flex-grow: 1;
    position: relative;
    z-index: 1;
}

nav ul {
    list-style: none;
    display: flex;
    gap: 15px;
    margin: 0;
    justify-content: center;
}

nav a {
    color: #333;
    text-decoration: none;
    font-size: 16px;
    font-weight: 500;
    padding: 8px 20px;
    border-radius: 25px;
    transition: all 0.3s ease;
    display: block;
    position: relative;
    z-index: 2;
    background-color: rgba(255, 255, 255, 0.9);
}

header:not(.at-top) nav a {
    background-color: transparent;
}

header:not(.at-top) nav a:hover {
    background-color: rgba(0, 0, 0, 0.05);
}

header:not(.at-top) nav a.active {
    background-color: #333 !important;
    color: #fff;
}

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

.logo {
    margin-right: 0;
    width: 120px;
    height: 40px;
    object-fit: contain;
}

.banner {
    width: 100%;
    height: 100vh;
    position: relative;
    overflow: hidden;
    margin-top: 0;
    padding-top: 0;
}

.banner-content {
    width: 100%;
    height: 100%;
    position: relative;
}

.banner-content img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.content-overlay {
    position: absolute;
    left: 10%;
    top: 50%;
    transform: translateY(-50%);
    text-align: left;
    color: white;
    z-index: 1;
    padding: 40px;
    background: none;
    max-width: 600px;
}

.content-overlay h2 {
    color: #333333;
    font-size: 2.2em;
    line-height: 1.4;
    margin-bottom: 25px;
    font-weight: bold;
    text-shadow: 2px 2px 4px rgba(255, 255, 255, 0.3);
}

.content-overlay h2 .subtitle {
    display: block;
    font-size: 1em;
    margin-top: 5px;
    white-space: nowrap;
    font-weight: bold;
    color: #333333;
}

.content-overlay .description,
.content-overlay .sub-description {
    font-size: 1.1em;
    margin-bottom: 15px;
    line-height: 1.6;
    color: #666666;
    text-shadow: 1px 1px 3px rgba(255, 255, 255, 0.3);
}

.content-overlay .sub-description {
    margin-bottom: 30px;
}

.cta-button {
    display: inline-block;
    padding: 12px 30px;
    background-color: #333333;
    color: white;
    text-decoration: none;
    border-radius: 25px;
    transition: all 0.3s ease;
    font-size: 1.1em;
}

.cta-button:hover {
    background-color: #444444;
    transform: translateY(-2px);
}

/* 下载页面样式 */
.download {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    padding: 100px 0;
    margin-bottom: 0;
}

.download-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
}

.download-card {
    background: white;
    border-radius: 30px;
    padding: 40px;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

.platform-icon {
    width: 80px;
    height: 80px;
    background: #f8f9fa;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.platform-icon .material-symbols-outlined {
    font-size: 40px;
    color: #333;
}

.download-content {
    width: 100%;
}

.download-content h3 {
    font-size: 28px;
    color: #2c3e50;
    margin-bottom: 10px;
}

.download-content p {
    color: #666;
    margin-bottom: 30px;
    font-size: 16px;
}

/* 修改下载按钮样式 */
.download-buttons {
    display: flex;
    gap: 10px;
    justify-content: center;
    width: 100%;
}

.download-btn {
    flex: 1;
    min-width: 130px;  /* 调整最小宽度 */
    max-width: 150px;  /* 调整最大宽度 */
    display: flex;
    align-items: center;
    gap: 10px;  /* 减小图标和文字的间距 */
    padding: 10px 12px;  /* 调整内边距 */
    border-radius: 12px;
    background: #333;
    color: white;
    text-decoration: none;
    transition: all 0.3s ease;
}

.download-btn:hover {
    transform: translateY(-2px);
    background: #444;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

.download-text {
    text-align: left;
    flex: 1;
    min-width: 0;  /* 允许文字区域收缩 */
}

.download-text span {
    display: block;
    font-size: 13px;  /* 稍微减小字号 */
    font-weight: 600;
    margin-bottom: 2px;
    white-space: nowrap;  /* 防止文字换行 */
    overflow: hidden;  /* 处理溢出 */
    text-overflow: ellipsis;  /* 文字溢出时显示省略号 */
}

.download-text small {
    display: block;
    font-size: 11px;  /* 减小版本号字号 */
    opacity: 0.8;
}

/* 弹窗样式 */
.qr-modal, .message-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1000;
    backdrop-filter: blur(5px);
}

.qr-modal-content, .message-content {
    position: relative;
    background: white;
    width: 90%;
    max-width: 400px;
    margin: 100px auto;
    padding: 40px;
    border-radius: 20px;
    text-align: center;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
    animation: modalFadeIn 0.3s ease;
}

.close-qr, .close-message {
    position: absolute;
    right: 20px;
    top: 20px;
    font-size: 24px;
    cursor: pointer;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: #f5f5f5;
    transition: all 0.3s ease;
}

.close-qr:hover, .close-message:hover {
    background: #e5e5e5;
    transform: rotate(90deg);
}

/* 移动端适配 */
@media (max-width: 768px) {
    .download-buttons {
        flex-wrap: wrap;
    }

    .download-btn {
        min-width: 160px;
        max-width: none;
        flex: 1;
    }

    .qr-modal-content, .message-content {
        margin: 60px auto;
        padding: 30px;
    }
}

/* Section 通用样式 */
section {
    min-height: auto;
    padding-top: 60px;
}

/* 合作商户部分 */
.partners {
    background: #fff;
    padding: 60px 0;
    min-height: auto;
    margin-bottom: 40px;
}

.section-title {
    text-align: center;
    color: #333;
    font-size: 32px;
    margin-bottom: 30px;
    font-weight: bold;
}

.partner-scroll {
    position: relative;
    overflow: hidden;
    padding: 30px 0;
    min-height: 150px;
    width: 100vw;  /* 设置为视窗宽度 */
    margin-left: calc(-50vw + 50%);  /* 使容器居中 */
    margin-right: calc(-50vw + 50%);
}

.partner-container {
    width: 100%;  /* 改为100%宽度 */
    position: relative;
    overflow: hidden;
}

.partner-list {
    display: flex;
    gap: 40px;  /* 减小间距以适应更多logo */
    padding: 0 60px;
    animation: scrollLeft 20s linear infinite;  /* 增加动画时间 */
    width: fit-content;
}

.partner-item {
    flex: 0 0 auto;
    width: 140px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.partner-item img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    transition: all 0.3s ease;
}

.partner-item:hover {
    transform: translateY(-5px) scale(1.05);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

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

.partner-list:hover {
    animation-play-state: paused;
}

.partner-item img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    transition: all 0.3s ease;
}

@keyframes scrollLeft {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(calc(-50% - 20px));  /* 调整滚动距离 */
    }
}

/* 移动端适配 */
@media (max-width: 768px) {
    .partner-list {
        gap: 30px;
        padding: 0 30px;
    }

    .partner-item {
        width: 120px;
        height: 50px;
    }
}

/* 产品部分 */
.products {
    background: #f8f9fa;
    padding: 100px 0;
}

.product-container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 25px;
}

.product-item {
    position: relative;
    padding: 25px;
    background: #fff;
    border-radius: 20px;
    overflow: hidden;
    min-height: 260px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.product-icon {
    margin-bottom: 20px;
}

.product-icon .material-symbols-outlined {
    font-size: 42px;
    padding: 18px;
    background: #2c3e50;
    border-radius: 16px;
    color: #fff;
}

.product-content h3 {
    font-size: 22px;
    color: #2c3e50;
    margin-bottom: 12px;
    font-weight: 600;
}

.main-desc {
    font-size: 15px;
    color: #505c6b;
    line-height: 1.5;
    margin-bottom: 25px;
}

.feature-list {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    margin-top: 20px;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 6px;
}

.feature-item .material-symbols-outlined {
    font-size: 18px;
    color: #2c3e50;
}

.feature-item span:last-child {
    font-size: 13px;
    color: #505c6b;
}

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

/* 价格部分 */
.pricing {
    background: #fff;
    padding: 100px 0;
}

.section-desc {
    text-align: center;
    color: #505c6b;
    font-size: 16px;
    line-height: 1.8;
    margin: 0 auto 50px;
    max-width: 800px;
}

.pricing-container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.pricing-item {
    background: #fff;
    border-radius: 16px;
    padding: 30px 25px;
    position: relative;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05),
                0 15px 30px -10px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    border: 1px solid rgba(0, 0, 0, 0.03);
    overflow: hidden;
    height: 100%;
    display: flex;
    flex-direction: column;
    backdrop-filter: blur(5px);
}

.pricing-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08),
                0 20px 40px -15px rgba(0, 0, 0, 0.15);
}

.pricing-header {
    text-align: center;
    margin-bottom: 20px;
}

.pricing-header h3 {
    font-size: 20px;
    color: #2c3e50;
    margin-bottom: 15px;
}

.price {
    font-size: 40px;
    color: #2c3e50;
    font-weight: bold;
    line-height: 1;
    margin: 20px 0;
}

.price .amount {
    font-size: 50px;
}

.price .period {
    font-size: 14px;
    color: #666;
    font-weight: normal;
}

.pricing-features {
    flex: 1;
    margin: 20px 0;
}

.feature {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 12px;
    color: #505c6b;
    font-size: 14px;
}

.feature:last-child {
    margin-bottom: 0;
}

.feature .material-symbols-outlined {
    font-size: 18px;
    color: #2c3e50;
}

.pricing-btn {
    display: block;
    width: 100%;
    padding: 12px 0;
    background: #333;
    color: white;
    text-decoration: none;
    border-radius: 12px;
    text-align: center;
    font-weight: 500;
    transition: all 0.3s ease;
    margin-top: auto;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.pricing-btn:hover {
    background: #444;
    transform: translateY(-2px);
    box-shadow: 0 6px 15px rgba(0, 0, 0, 0.15);
}

/* 推荐版本样式 */
.pricing-item.popular {
    border: 2px solid #333;
    transform: none;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08),
                0 15px 30px -10px rgba(0, 0, 0, 0.15);
}

.pricing-item.popular:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1),
                0 20px 40px -15px rgba(0, 0, 0, 0.2);
}

.popular-tag {
    position: absolute;
    top: 15px;
    right: -30px;
    background: #333;
    color: #fff;
    padding: 6px 30px;
    font-size: 12px;
    transform: rotate(45deg);
    font-weight: 500;
}

/* 移动端适配 */
@media (max-width: 1024px) {
    .product-container {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .pricing-container {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .product-container {
        grid-template-columns: 1fr;
    }
    
    .pricing-container {
        grid-template-columns: 1fr;
        max-width: 400px;
    }
}

/* 添加平滑滚动效果 */
html, body {
    scroll-behavior: smooth;
    scroll-padding-top: 70px; /* header的高度 */
}

/* 联系我们弹窗样式 */
.contact-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1000;
    backdrop-filter: blur(5px);
}

.modal-content {
    position: relative;
    background: white;
    width: 90%;
    max-width: 520px;
    margin: 100px auto;
    padding: 35px;
    border-radius: 20px;
    text-align: center;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
    animation: modalFadeIn 0.3s ease;
}

.close-btn {
    position: absolute;
    right: 20px;
    top: 20px;
    font-size: 24px;
    cursor: pointer;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: #f5f5f5;
    transition: all 0.3s ease;
}

.close-btn:hover {
    background: #e5e5e5;
    transform: rotate(90deg);
}

/* 弹窗动画 */
@keyframes modalFadeIn {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 移动端弹窗适配 */
@media (max-width: 768px) {
    .modal-content {
        margin: 80px auto;
        padding: 25px;
    }

    .contact-info {
        flex-direction: column;
        gap: 25px;
    }

    .qrcode-section {
        padding-right: 0;
        border-right: none;
        border-bottom: 1px solid #eee;
        padding-bottom: 25px;
    }
}

/* 回到顶部按钮样式 */
.back-to-top {
    position: fixed;
    bottom: 40px;
    right: 40px;
    width: 50px;
    height: 50px;
    border-radius: 25px;
    background: #333;
    color: white;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all 0.3s ease;
    z-index: 999;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.back-to-top .material-symbols-outlined {
    font-size: 24px;
    transition: transform 0.3s ease;
}

.back-to-top:hover {
    background: #444;
    transform: translateY(-5px);
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.2);
}

.back-to-top:hover .material-symbols-outlined {
    transform: translateY(-2px);
}

.back-to-top.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

/* 移动端适配 */
@media (max-width: 768px) {
    .back-to-top {
        bottom: 30px;
        right: 30px;
        width: 45px;
        height: 45px;
    }

    .back-to-top .material-symbols-outlined {
        font-size: 22px;
    }
}
/* 联系我们弹窗内样式 */
.modal-title {
    color: #2c3e50;
    font-size: 24px;
    margin-bottom: 30px;
    text-align: center;
    font-weight: 600;
}

.contact-info {
    display: flex;
    gap: 35px;
    align-items: center;
}

.qrcode-section {
    flex: 1;
    text-align: center;
    padding-right: 35px;
    border-right: 1px solid #eee;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.qrcode {
    width: 180px;
    height: 180px;
    margin-bottom: 15px;
}

.contact-details {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 20px;
}

.time-info, .phone-info {
    background: #f8f9fa;
    padding: 20px;
    border-radius: 8px;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    text-align: left;
}

.contact-details h3 {
    margin-bottom: 12px;
    text-align: left;
}

.contact-details p {
    color: #666;
    font-size: 14px;
    line-height: 1.5;
    margin-bottom: 0;
}

.phone-info p {
    text-align: left;
    margin-bottom: 0;
}

.note {
    color: #999 !important;
    font-size: 11px !important;
    font-style: italic;
    margin-top: 2px;
}

/* 移动端适配 */
@media (max-width: 768px) {
    .contact-info {
        align-items: stretch;
    }
}

/* 修改工作时间显示样式 */
.time-info {
    white-space: nowrap;
}

.time-info p {
    display: inline;
    margin-right: 20px;
    text-align: left;
}

.time-info p:last-child {
    margin-right: 0;
}

/* 移动端适配 */
@media (max-width: 768px) {
    .time-info {
        white-space: normal;
    }
    
    .time-info p {
        display: block;
        margin-right: 0;
        margin-bottom: 8px;
    }
}

/* 自定义滚动条样式 */
::-webkit-scrollbar {
    width: 6px;  /* 减小滚动条宽度到6px */
}

::-webkit-scrollbar-track {
    background: transparent;  /* 保持轨道透明 */
}

::-webkit-scrollbar-thumb {
    background: rgba(0, 0, 0, 0.1);  /* 使用半透明黑色，更加隐蔽 */
    border-radius: 3px;  /* 减小圆角 */
    border: 1px solid transparent;  /* 减小边框 */
    background-clip: padding-box;
    min-height: 40px;
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(0, 0, 0, 0.2);  /* 悬停时稍微加深 */
    border: 1px solid transparent;
    background-clip: padding-box;
}

/* Firefox滚动条样式 */
* {
    scrollbar-width: thin;
    scrollbar-color: rgba(0, 0, 0, 0.1) transparent;  /* 使用相同的半透明颜色 */
}

/* 当滚动条出现时保持页��稳定 */
html {
    scrollbar-gutter: stable;
}

/* 首页按钮默认样式 */
nav a[href="#home"] {
    background-color: #333;
    color: #fff;
}

/* 滚动时的样式会覆盖默认样式 */
header:not(.at-top) nav a[href="#home"] {
    background-color: transparent;
    color: #333;
}

header:not(.at-top) nav a[href="#home"].active {
    background-color: #333 !important;
    color: #fff;
}

/* 页脚样式优化 */
.footer {
    background: #f8f9fa;
    color: #333;
    padding: 80px 0 0;
    margin-top: 0;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(to right, 
        transparent 0%, 
        rgba(255, 255, 255, 0.1) 50%, 
        transparent 100%
    );
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 40px;
    display: grid;
    grid-template-columns: 1.8fr 1fr 1.2fr 1fr;  /* 调整列宽比例 */
    gap: 50px;
    position: relative;
}

.footer-section {
    display: flex;
    flex-direction: column;
}

.footer-logo {
    width: 130px;
    height: 42px;
    object-fit: contain;
    margin-bottom: 20px;
    filter: none;  /* 移除 filter，保持原有颜色 */
}

.footer-desc {
    color: #666;  /* 更改描述文字颜色 */
    line-height: 1.8;
    font-size: 14px;
    max-width: 360px;  /* 限制描述文字宽度 */
}

.footer-section h4 {
    color: #333;  /* 更改标题颜色 */
    font-size: 18px;
    margin-bottom: 25px;
    font-weight: 600;
    letter-spacing: 0.5px;
}

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

.footer-section ul li {
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 12px;
    color: #666;  /* 更改列表文字颜色 */
}

.footer-section ul li:last-child {
    margin-bottom: 0;
}

.footer-section ul li a {
    color: #666;  /* 更改链接颜色 */
    text-decoration: none;
    transition: all 0.3s ease;
    font-size: 14px;
}

.footer-section ul li a:hover {
    color: #333;  /* 更改链接悬停颜色 */
    padding-left: 5px;
}

.footer-section .material-symbols-outlined {
    font-size: 20px;
    color: #666;  /* 更改图标颜色 */
}

.footer-qr {
    width: 120px;
    height: 120px;
    border-radius: 8px;
    margin-bottom: 12px;
    background: #fff;
    padding: 8px;  /* 添加内边距 */
}

.qr-wrapper p {
    color: #999;
    font-size: 14px;
    text-align: center;
}

.footer-bottom {
    margin-top: 60px;
    padding: 25px 0;
    text-align: center;
    border-top: 1px solid rgba(0, 0, 0, 0.05);  /* 更改分隔线颜色 */
    background: rgba(0, 0, 0, 0.02);  /* 更改底部背景色 */
}

.footer-bottom p {
    color: #666;
    font-size: 14px;
}

/* 移动端适配优化 */
@media (max-width: 1024px) {
    .footer-content {
        grid-template-columns: repeat(2, 1fr);
        gap: 40px;
    }

    .footer-section:first-child {
        grid-column: 1 / -1;
    }

    .footer-desc {
        max-width: 100%;
        text-align: center;
    }
}

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

    .footer-content {
        grid-template-columns: 1fr;
        gap: 40px;
        padding: 0 20px;
    }

    .footer-section {
        text-align: center;
        align-items: center;
    }

    .footer-section ul li {
        justify-content: center;
    }

    .footer-section ul li a:hover {
        padding-left: 0;
        transform: translateY(-2px);
    }
}

/* 小程序二维码弹窗样式优化 */
.qr-modal-content {
    position: relative;
    background: white;
    width: 90%;
    max-width: 400px;
    margin: 100px auto;
    padding: 40px;
    border-radius: 20px;
    text-align: center;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
    animation: modalFadeIn 0.3s ease;
}

.miniapp-qr {
    width: 200px;  /* 固定宽度 */
    height: 200px;  /* 固定高度 */
    object-fit: contain;  /* 保持图片比例 */
    margin: 20px auto;  /* 居中显示 */
    display: block;  /* 确保margin: auto生效 */
}

/* 移动端适配 */
@media (max-width: 768px) {
    .qr-modal-content {
        width: 85%;
        padding: 30px;
        margin: 80px auto;
    }

    .miniapp-qr {
        width: 180px;  /* 移动端稍微缩小尺寸 */
        height: 180px;
    }
}

/* SEO优化相关样式 */
.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* 确保图片有替代文本时的可访问性 */
img[alt] {
    color: transparent;
}

/* 优化链接可访问性 */
a:focus {
    outline: 2px solid #333;
    outline-offset: 2px;
}

/* 优化打印样式 */
@media print {
    .no-print {
        display: none !important;
    }
    
    a[href]:after {
        content: " (" attr(href) ")";
    }
}