/* 全局样式重置和基础设置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Microsoft YaHei', Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f5f5f5;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

.clearfix::after {
    content: "";
    display: table;
    clear: both;
}

.fl {
    float: left;
}

.fr {
    float: right;
}

/* 顶部信息栏样式 */
.site-header {
    background: #fff;
    box-shadow: 0 4px 20px rgba(0,0,0,0.15);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.top-bar {
    background: linear-gradient(135deg, #1a1a1a 0%, #333333 100%);
    color: white;
    padding: 10px 0;
    font-size: 14px;
}

.top-bar-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.welcome-info {
    display: flex;
    align-items: center;
    gap: 25px;
}

.welcome-text {
    font-weight: 600;
    font-size: 15px;
}

.company-slogan {
    opacity: 0.9;
    font-size: 13px;
    color: #cccccc;
}

.quick-links {
    display: flex;
    gap: 15px;
}

.quick-links a {
    color: white;
    text-decoration: none;
    padding: 6px 15px;
    border-radius: 20px;
    background: rgba(255,255,255,0.1);
    transition: all 0.3s ease;
    font-size: 13px;
    border: 1px solid rgba(255,255,255,0.2);
}

.quick-links a:hover {
    background: rgba(255,255,255,0.2);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.3);
}

/* 主头部区域 */
.main-header {
    padding: 25px 0;
    background: white;
    border-bottom: 1px solid #eee;
}

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

.logo-section .logo-img {
    max-height: 65px;
    width: auto;
    filter: drop-shadow(0 2px 8px rgba(0,0,0,0.1));
}

.contact-info {
    text-align: right;
}

.contact-text {
    font-size: 26px;
    font-weight: bold;
    color: #1a1a1a;
    text-shadow: 1px 1px 3px rgba(0,0,0,0.1);
}

/* 导航菜单 */
.main-navigation {
    background: linear-gradient(135deg, #1a1a1a 0%, #2d2d2d 100%);
    padding: 0;
    box-shadow: 0 2px 15px rgba(0,0,0,0.2);
}

.nav-menu {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
}

.nav-item {
    position: relative;
}

.nav-link {
    display: flex;
    align-items: center;
    padding: 18px 30px;
    color: white;
    text-decoration: none;
    transition: all 0.3s ease;
    font-weight: 500;
    font-size: 16px;
}

.nav-link:hover,
.nav-item.active .nav-link {
    background: rgba(255,255,255,0.15);
    color: white;
    transform: translateY(-1px);
}

.nav-link i {
    margin-right: 8px;
    font-size: 16px;
}

/* 轮播横幅 */
.hero-banner {
    margin-bottom: 0px;
}

.banner-carousel {
    position: relative;
    overflow: hidden;
    border-radius: 15px;
    box-shadow: 0 15px 40px rgba(0,0,0,0.25);
}

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

/* 服务范围区块 */
.box1 {
    padding: 100px 0;
    background: white;
    margin-bottom: 40px;
    position: relative;
}

.box1::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #1a1a1a 0%, #333333 100%);
}

.titles {
    text-align: center;
    font-size: 42px;
    font-weight: bold;
    color: #1a1a1a;
    margin-bottom: 15px;
    text-transform: uppercase;
    letter-spacing: 3px;
}

.titles span {
    color: #333333;
}

.titles2 {
    text-align: center;
    font-size: 20px;
    color: #666;
    margin-bottom: 60px;
    position: relative;
}

.titles2::after {
    content: '';
    position: absolute;
    bottom: -20px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, #1a1a1a 0%, #333333 100%);
    border-radius: 2px;
}

.pro_cont {
    display: flex;
    gap: 50px;
    margin-top: 60px;
}

.pro_le {
    flex: 1;
    background: #f8f8f8;
    padding: 45px;
    border-radius: 20px;
    box-shadow: 0 8px 30px rgba(0,0,0,0.1);
    border-top: 4px solid #1a1a1a;
}

.chan {
    font-size: 26px;
    font-weight: bold;
    color: #1a1a1a;
    margin-bottom: 35px;
    padding-bottom: 20px;
    border-bottom: 2px solid #333333;
}

.chan span {
    display: block;
    font-size: 14px;
    color: #666;
    font-weight: normal;
    margin-top: 8px;
    text-transform: uppercase;
}

.pro_le ul {
    list-style: none;
    margin-bottom: 35px;
}

.pro_le ul li {
    margin-bottom: 15px;
    padding-left: 25px;
    position: relative;
}

.pro_le ul li::before {
    content: '▶';
    position: absolute;
    left: 0;
    color: #1a1a1a;
    font-size: 14px;
    font-weight: bold;
}

.pro_le ul li a {
    color: #333;
    text-decoration: none;
    transition: color 0.3s ease;
    font-size: 15px;
}

.pro_le ul li a:hover {
    color: #1a1a1a;
    font-weight: 500;
}

.pro_conta {
    background: linear-gradient(135deg, #1a1a1a 0%, #333333 100%);
    color: white;
    padding: 30px;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 8px 25px rgba(0,0,0,0.2);
}

.pro_conta h3 {
    font-size: 22px;
    margin-bottom: 12px;
}

.pro_conta span {
    display: block;
    margin-bottom: 18px;
    opacity: 0.9;
    font-size: 16px;
}

.pro_conta em {
    display: block;
    font-style: normal;
    margin-bottom: 12px;
    font-weight: bold;
    font-size: 16px;
}

.pro_conta p {
    font-size: 26px;
    font-weight: bold;
}

.pro_ri {
    flex: 1.5;
}

.prod_tt {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 35px;
    padding-bottom: 20px;
    border-bottom: 3px solid #1a1a1a;
    font-size: 26px;
    font-weight: bold;
    color: #1a1a1a;
}

.product_list1 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
    list-style: none;
}

.product_list1 li {
    position: relative;
    overflow: hidden;
    border-radius: 15px;
    box-shadow: 0 8px 25px rgba(0,0,0,0.15);
    transition: all 0.4s ease;
    background: white;
}

.product_list1 li:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 40px rgba(0,0,0,0.25);
}

.product_list1 li .img {
    display: block;
    position: relative;
    overflow: hidden;
}

.product_list1 li img {
    width: 100%;
    height: 220px;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.product_list1 li:hover img {
    transform: scale(1.1);
}

.product_list1 li h3 {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(transparent, rgba(0,0,0,0.9));
    color: white;
    padding: 25px 20px 20px;
    font-size: 16px;
    margin: 0;
    font-weight: 500;
}

.mask {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(26, 26, 26, 0.8);
    opacity: 0;
    transition: opacity 0.4s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.product_list1 li:hover .mask {
    opacity: 1;
}

/* 咨询区块 */
.box2 {
    background: linear-gradient(135deg, #1a1a1a 0%, #2d2d2d 100%);
    padding: 40px 0;
    margin-bottom: 40px;
    position: relative;
}

.box2::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="25" cy="25" r="1" fill="rgba(255,255,255,0.05)"/><circle cx="75" cy="75" r="1" fill="rgba(255,255,255,0.05)"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
    opacity: 0.3;
}

.box2 .container {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 50px;
    position: relative;
    z-index: 2;
}

.zx a {
    display: inline-block;
    background: white;
    color: #1a1a1a;
    padding: 18px 45px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: bold;
    font-size: 18px;
    transition: all 0.4s ease;
    box-shadow: 0 8px 25px rgba(0,0,0,0.3);
    border: 2px solid transparent;
}

.zx a:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 35px rgba(0,0,0,0.4);
    border-color: #333;
}

.tel1 p {
    color: white;
    font-size: 30px;
    font-weight: bold;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
}

/* 优势区块 */
.box3 {
    padding: 100px 0;
    background: #f8f8f8;
    margin-bottom: 40px;
    position: relative;
}

.yy {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 120px;
    background: linear-gradient(135deg, #1a1a1a 0%, #333333 100%);
    opacity: 0.1;
}

.titless {
    position: relative;
    z-index: 2;
}

.titles22 {
    position: relative;
    z-index: 2;
}

.why {
    text-align: center;
    font-size: 18px;
    color: #666;
    margin-bottom: 60px;
    position: relative;
    z-index: 2;
}

.ads {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 35px;
    list-style: none;
    position: relative;
    z-index: 2;
}

.ads li {
    background: white;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 12px 35px rgba(0,0,0,0.15);
    transition: all 0.4s ease;
    border-top: 4px solid #1a1a1a;
}

.ads li:hover {
    transform: translateY(-12px);
    box-shadow: 0 20px 50px rgba(0,0,0,0.25);
}

.ads li img {
    width: 100%;
    height: 220px;
    object-fit: cover;
}

.det {
    padding: 30px;
}

.det h3 {
    font-size: 22px;
    color: #1a1a1a;
    margin-bottom: 12px;
    font-weight: bold;
}

.det p {
    color: #333333;
    font-weight: 500;
    margin-bottom: 18px;
    font-size: 14px;
    text-transform: uppercase;
}

.det span {
    color: #666;
    font-size: 14px;
    line-height: 1.7;
}

/* 成功案例区块 */
.box5 {
    padding: 100px 0;
    background: white;
    margin-bottom: 40px;
}

.titles7 {
    color: #1a1a1a;
}

.case_tt {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 50px;
}

.sort1 {
    list-style: none;
}

.sort1 li {
    display: inline-block;
}

.list_item {
    display: inline-block;
    padding: 15px 35px;
    background: linear-gradient(135deg, #1a1a1a 0%, #333333 100%);
    color: white;
    text-decoration: none;
    border-radius: 30px;
    font-weight: 500;
    transition: all 0.4s ease;
    box-shadow: 0 6px 20px rgba(0,0,0,0.2);
}

.list_item:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.3);
}

.case_cont {
    display: flex;
    gap: 35px;
}

.product_list2 {
    flex: 1;
    list-style: none;
}

.product_list2 li {
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 12px 35px rgba(0,0,0,0.15);
}

.product_list2 img {
    width: 100%;
    height: 350px;
    object-fit: cover;
}

.product_list3 {
    flex: 2;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
    list-style: none;
}

.product_list3 li {
    position: relative;
    overflow: hidden;
    border-radius: 15px;
    box-shadow: 0 8px 25px rgba(0,0,0,0.15);
    transition: all 0.4s ease;
}

.product_list3 li:hover {
    transform: translateY(-6px);
    box-shadow: 0 15px 40px rgba(0,0,0,0.25);
}

.product_list3 li img {
    width: 100%;
    height: 170px;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.product_list3 li:hover img {
    transform: scale(1.1);
}

.product_list3 li h3 {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(transparent, rgba(0,0,0,0.9));
    color: white;
    padding: 20px 15px 15px;
    font-size: 14px;
    margin: 0;
    font-weight: 500;
}

.mask2 {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(26, 26, 26, 0.8);
    opacity: 0;
    transition: opacity 0.4s ease;
}

.product_list3 li:hover .mask2 {
    opacity: 1;
}

/* 关于我们区块 */
.box6 {
    padding: 100px 0;
    background: #f8f8f8;
    margin-bottom: 40px;
}

.titles6 {
    color: #1a1a1a;
}

.about {
    width: 100%;
    margin-top: 50px;
}

.tt1 {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 35px;
    padding-bottom: 20px;
    border-bottom: 3px solid #1a1a1a;
    font-size: 26px;
    font-weight: bold;
    color: #1a1a1a;
}

.tt1 span {
    font-size: 14px;
    color: #666;
    font-weight: normal;
    text-transform: uppercase;
}

.content {
    background: white;
    padding: 35px;
    line-height: 1.8;
    box-shadow: 0 8px 30px rgba(0,0,0,0.1);
    border-top: 4px solid #1a1a1a;
}

.content img {
    max-width: 220px;
    border-radius: 15px;
    box-shadow: 0 8px 25px rgba(0,0,0,0.15);
}

/* 新闻资讯区块 */
.box7 {
    padding: 100px 0;
    background: white;
    margin-bottom: 40px;
}

.news {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 35px;
    margin-top: 50px;
}

.news_company {
    background: white;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 12px 35px rgba(0,0,0,0.15);
    transition: all 0.4s ease;
    border-top: 4px solid #1a1a1a;
}

.news_company:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 50px rgba(0,0,0,0.25);
}

.atitle {
    background: linear-gradient(135deg, #1a1a1a 0%, #333333 100%);
    color: white;
    padding: 25px;
    margin: 0;
    font-size: 18px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: bold;
}

.atitle span {
    font-size: 12px;
    opacity: 0.8;
    text-transform: uppercase;
}

.atitle .cm {
    color: white;
    text-decoration: none;
    font-size: 14px;
    padding: 6px 18px;
    background: rgba(255,255,255,0.2);
    border-radius: 20px;
    transition: all 0.3s ease;
    border: 1px solid rgba(255,255,255,0.3);
}

.atitle .cm:hover {
    background: rgba(255,255,255,0.3);
    transform: translateY(-1px);
}

.news_company .content {
    padding: 25px;
    background: white;
}

.nspic img {
    width: 100%;
    height: 170px;
    object-fit: cover;
    border-radius: 12px;
    margin-bottom: 18px;
}

.news_list2,
.news_list3 {
    list-style: none;
}

.news_list2 li,
.news_list3 li {
    margin-bottom: 15px;
    padding-bottom: 10px;
    border-bottom: 1px solid #eee;
}

.news_list2 li:last-child,
.news_list3 li:last-child {
    border-bottom: none;
}

.news_list2 a,
.news_list3 a {
    color: #333;
    text-decoration: none;
    font-size: 14px;
    transition: color 0.3s ease;
    display: block;
    line-height: 1.5;
}

.news_list2 a:hover,
.news_list3 a:hover {
    color: #1a1a1a;
    font-weight: 500;
}

.news_list3 span {
    color: #666;
    font-size: 12px;
    margin-top: 6px;
    display: block;
    line-height: 1.4;
}

/* 底部区域 */
.fg {
    background: linear-gradient(135deg, #1a1a1a 0%, #2d2d2d 100%);
    color: white;
    padding: 60px 0 40px;
    position: relative;
}

.fg::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="25" cy="25" r="1" fill="rgba(255,255,255,0.05)"/><circle cx="75" cy="75" r="1" fill="rgba(255,255,255,0.05)"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
    opacity: 0.3;
}

.fg .container {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 50px;
    margin-bottom: 40px;
    position: relative;
    z-index: 2;
}

.map1 {
    font-size: 22px;
    font-weight: bold;
    margin-bottom: 25px;
    color: white;
}

.map2 a {
    color: #cccccc;
    text-decoration: none;
    margin-right: 20px;
    transition: color 0.3s ease;
    font-size: 15px;
}

.map2 a:hover {
    color: white;
    font-weight: 500;
}

.map3 {
    margin-bottom: 20px;
}

.map3 span {
    color: white;
    font-weight: bold;
    font-size: 18px;
}

.map4 {
    color: #cccccc;
    font-size: 14px;
}

.map10 {
    text-align: center;
}

.map10 img {
    width: 130px;
    height: 130px;
    border-radius: 15px;
    margin-bottom: 15px;
    box-shadow: 0 8px 25px rgba(0,0,0,0.3);
}

.map10 p {
    color: #cccccc;
    font-size: 14px;
    margin-bottom: 10px;
    line-height: 1.5;
}

.map10 a {
    color: white;
    text-decoration: none;
    font-weight: 500;
}

.f_link {
    border-top: 1px solid #444;
    padding-top: 25px;
    margin-bottom: 25px;
    color: #cccccc;
    position: relative;
    z-index: 2;
}

.f_link a {
    color: #cccccc;
    text-decoration: none;
    margin-right: 20px;
    transition: color 0.3s ease;
}

.f_link a:hover {
    color: white;
    font-weight: 500;
}

.copyright {
    text-align: center;
    color: #cccccc;
    font-size: 14px;
    border-top: 1px solid #444;
    padding-top: 25px;
    width: 100%;
    position: relative;
    z-index: 2;
}

.copyright a {
    color: white;
    text-decoration: none;
    font-weight: 500;
}

/* 侧边工具栏 */
#toolbar {
    position: fixed;
    right: 25px;
    top: 50%;
    transform: translateY(-50%);
    z-index: 1000;
}

#toolbar ul {
    list-style: none;
}

#toolbar li {
    margin-bottom: 12px;
    background: white;
    border-radius: 50px;
    box-shadow: 0 8px 25px rgba(0,0,0,0.2);
    transition: all 0.4s ease;
    border: 2px solid #f0f0f0;
}

#toolbar li:hover {
    transform: translateX(-8px);
    box-shadow: 0 12px 35px rgba(0,0,0,0.3);
    border-color: #1a1a1a;
}

#toolbar a {
    display: flex;
    align-items: center;
    padding: 18px 25px;
    color: #333;
    text-decoration: none;
    border-radius: 50px;
}

#toolbar .icon-font {
    font-size: 20px;
    margin-right: 12px;
    color: #1a1a1a;
}

#toolbar .wz {
    font-size: 14px;
    white-space: nowrap;
    font-weight: 500;
}

.ewm {
    position: relative;
}

.ewm-box {
    position: absolute;
    right: 100%;
    top: 50%;
    transform: translateY(-50%);
    margin-right: 20px;
    background: white;
    padding: 15px;
    border-radius: 15px;
    box-shadow: 0 8px 25px rgba(0,0,0,0.2);
    opacity: 0;
    visibility: hidden;
    transition: all 0.4s ease;
    border: 2px solid #f0f0f0;
}

.ewm:hover .ewm-box {
    opacity: 1;
    visibility: visible;
}

.ewm-box img {
    width: 130px;
    height: 130px;
    border-radius: 10px;
}

.backtop {
    cursor: pointer;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .container {
        padding: 0 15px;
    }
    
    .top-bar-content {
        flex-direction: column;
        gap: 15px;
    }
    
    .header-content {
        flex-direction: column;
        text-align: center;
        gap: 25px;
    }
    
    .nav-menu {
        flex-wrap: wrap;
    }
    
    .pro_cont {
        flex-direction: column;
    }
    
    .product_list1 {
        grid-template-columns: 1fr;
    }
    
    .ads {
        grid-template-columns: 1fr;
    }
    
    .case_cont {
        flex-direction: column;
    }
    
    .product_list3 {
        grid-template-columns: 1fr;
    }
    
    .news {
        grid-template-columns: 1fr;
    }
    
    .fg .container {
        grid-template-columns: 1fr;
    }
    
    #toolbar {
        right: 15px;
    }
    
    #toolbar .wz {
        display: none;
    }
    
    #toolbar a {
        padding: 15px;
    }
}

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

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-40px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(40px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.box1, .box3, .box5, .box6, .box7 {
    animation: fadeInUp 0.8s ease-out;
}

.pro_le {
    animation: slideInLeft 0.8s ease-out;
}

.pro_ri {
    animation: slideInRight 0.8s ease-out;
}

/* 滚动条样式 */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 5px;
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(135deg, #1a1a1a 0%, #333333 100%);
    border-radius: 5px;
    border: 1px solid #ccc;
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(135deg, #000000 0%, #1a1a1a 100%);
}

/* 其他辅助样式 */
.clearboth {
    clear: both;
}

.box_voann {
    min-height: 100vh;
}

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

/* 链接悬停效果 */
a {
    transition: all 0.3s ease;
}

/* 按钮通用样式 */
.btn {
    display: inline-block;
    padding: 15px 35px;
    background: linear-gradient(135deg, #1a1a1a 0%, #333333 100%);
    color: white;
    text-decoration: none;
    border-radius: 30px;
    font-weight: 500;
    transition: all 0.4s ease;
    border: none;
    cursor: pointer;
    box-shadow: 0 6px 20px rgba(0,0,0,0.2);
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.3);
    color: white;
}

/* 卡片通用样式 */
.card {
    background: white;
    border-radius: 20px;
    box-shadow: 0 8px 30px rgba(0,0,0,0.1);
    transition: all 0.4s ease;
    border-top: 4px solid #1a1a1a;
}

.card:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 40px rgba(0,0,0,0.2);
}

/* 特殊效果 */
.gradient-text {
    background: linear-gradient(135deg, #1a1a1a 0%, #333333 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* 加载动画 */
@keyframes pulse {
    0% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
    100% {
        opacity: 1;
    }
}

.loading {
    animation: pulse 2s infinite;
}

/* 高亮效果 */
.highlight {
    position: relative;
    display: inline-block;
}

.highlight::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, #1a1a1a 0%, #333333 100%);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.highlight:hover::after {
    transform: scaleX(1);
}