/* 全局样式重置 */
* {
    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: #333;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}
/* 顶部导航 */
.header {
    background: #fff;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

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

.logo h1 {
    font-size: 24px;
    color: #2c3e50;
}

.nav ul {
    display: flex;
    list-style: none;
}

.nav ul li {
    margin: 0 20px;
}

.nav ul li a {
    text-decoration: none;
    color: #2c3e50;
    font-weight: 500;
    transition: all 0.3s;
    position: relative;
    padding-bottom: 5px;
}

.nav ul li a:hover {
    color: #3898ff;
}

.nav ul li a.active {
    color: #3898ff;
}

.nav ul li a.active::after,
.nav ul li a:hover::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    top: 40px;
    width: 100%;
    height: 2px;
    background-color: #3898ff;
    transform: scaleX(1);
    transition: transform 0.3s ease;
}

.nav ul li a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: #3898ff;
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.user-actions {
    display: flex;
    align-items: center;
    gap: 15px;
}

.phone {
    font-weight: 500;
    color: #2c3e50;
}

.btn {
    padding: 8px 20px;
    border-radius: 5px;
    text-decoration: none;
    transition: all 0.3s;
    color: #2c3e50;
    font-weight: 500;
}
.btn:hover {
    color: #3898ff;
    font-weight: 500;
}

.btn-primary {
    background: #3898ff;
    color: #fff;
}

.btn-primary:hover {
    background: #2d7ad9;
}

/* 主横幅 */
.banner {
    background: linear-gradient(135deg, #3898ff, #2d7ad9);
    color: #fff;
    padding: 120px 0 80px;
    text-align: center;
}

.banner h2 {
    font-size: 36px;
    margin-bottom: 40px;
}

.features {
    display: flex;
    justify-content: center;
    gap: 40px;
    margin-top: 40px;
}

.feature-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
}

.feature-item i {
    font-size: 32px;
}

/* 服务卡片 */
.services {
    padding: 80px 0;
    background: #f8f9fa;
}
.services-text-p{
    text-align: left;
    color: #666;
}

.services h3 {
    text-align: center;
    font-size: 32px;
    margin-bottom: 40px;
}

.service-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    padding: 20px;
}

.service-card {
    background: #fff;
    padding: 30px;
    border-radius: 10px;
    text-align: center;
    transition: transform 0.3s;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.service-card:hover {
    transform: translateY(-10px);
    border-color: #3898ff;
}

.service-card i {
    font-size: 40px;
    color: #3898ff;
    margin-bottom: 20px;
}

.service-card h4 {
    margin-bottom: 15px;
    color: #333;
}

/* 合作案例 */
.cases {
    padding: 80px 0;
    background: #fff;
}

.cases h3 {
    text-align: center;
    font-size: 32px;
    margin-bottom: 20px;
}

.subtitle {
    text-align: center;
    color: #666;
    margin-bottom: 40px;
}

.case-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
    padding: 20px;
    max-width: 1200px;
    margin: 0 auto;
}

.case-grid > div {
    background: #fff;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 2px 15px rgba(0,0,0,0.05);
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.case-grid > div:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
}

.case-grid img {
    max-width: 100%;
    height: auto;
    max-height: 80px;
    object-fit: contain;
    opacity: 0.9;
    transition: all 0.3s ease;
}

.case-grid > div:hover img {
    opacity: 1;
    transform: scale(1.05);
}

/* 底部 */
.footer {
    background: #272a2c;
    color: #fff;
    padding: 60px 0 20px;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    border-bottom: 1px solid #959595;
    margin-bottom: 20px;
    padding-bottom: 20px;
}

.footer-col .footer-col-p {
    margin-bottom: 20px;
    font-size: 17px;
}

.footer-col ul {
    list-style: none;
}

.footer-col ul li {
    margin-bottom: 10px;
    color: #959595;
    font-size: 14px;
}

.footer-col ul li i {
    margin-right: 10px;
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255,255,255,0.1);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .header .container {
        flex-direction: column;
        height: auto;
        padding: 20px;
    }

    .nav ul {
        flex-direction: column;
        text-align: center;
        margin: 20px 0;
    }

    .nav ul li {
        margin: 10px 0;
    }

    .user-actions {
        flex-direction: column;
        gap: 10px;
    }

    .features {
        flex-direction: column;
        gap: 20px;
    }

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

    .case-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
        padding: 10px;
    }
}

@media (max-width: 480px) {
    .case-grid {
        grid-template-columns: 1fr;
    }
}

/* 关于我们页面特有样式 */
.about-banner {
    background: linear-gradient(135deg, #3898ff, #2d7ad9);
    color: white;
    padding: 120px 0 80px;
    text-align: center;
}

.advantages-section-p{
    text-align: left;
}

.about-banner h1 {
    font-size: 36px;
    margin-bottom: 40px;
    font-weight: 700;
}

.about-banner p {
    font-size: 1.2rem;
    opacity: 0.9;
    max-width: 600px;
    margin: 0 auto;
}

.about-content {
    padding: 80px 0;
}

.section-title {
    text-align: center;
    font-size: 32px;
    margin-bottom: 40px;
    color: #333;
}

.section-subtitle {
    text-align: center;
    color: #666;
    margin-bottom: 40px;
    font-size: 1.1rem;
}

.process-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin: 60px 0;
}

.process-item {
    background: #fff;
    padding: 40px 30px;
    border-radius: 12px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.08);
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 1px solid #f0f0f0;
}

.process-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0,0,0,0.1);
}

.process-number {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #3898ff, #2d7ad9);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: bold;
    margin: 0 auto 20px;
}

.process-item h4 {
    font-size: 1.3rem;
    margin-bottom: 15px;
    color: #333;
}

.process-item p {
    color: #666;
    line-height: 1.6;
}

.company-intro {
    background: #f8f9fc;
    padding: 80px 0;
}

.intro-container {
    display: flex;
    align-items: center;
    gap: 60px;
    margin-top: 40px;
}

.intro-image {
    flex: 1;
    position: relative;
}

.intro-image img {
    width: 100%;
    border-radius: 20px;
    box-shadow: 0 20px 40px rgba(56, 152, 255, 0.15);
}

.intro-text {
    flex: 1;
    background: #fff;
    padding: 40px;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.08);
    position: relative;
}

.intro-text::before {
    content: '';
    position: absolute;
    top: 30px;
    left: -15px;
    width: 30px;
    height: 30px;
    background: #fff;
    transform: rotate(45deg);
    box-shadow: -2px -2px 5px rgba(0,0,0,0.05);
}

.intro-content {
    font-size: 1.1rem;
    line-height: 1.8;
    color: #555;
}

.intro-content .highlight {
    color: #3898ff;
    font-weight: bold;
}

.intro-content .company-name {
    color: #3898ff;
    font-weight: bold;
    font-size: 1.2rem;
}

.intro-features {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
    margin: 25px 0;
}

.intro-features li {
    display: flex;
    align-items: center;
    padding: 10px 15px;
    background: #f8f9fc;
    border-radius: 8px;
    border-left: 4px solid #3898ff;
    list-style: none;
    transition: transform 0.2s;
}

.intro-features li:hover {
    transform: translateX(5px);
}

.intro-features li::before {
    content: "✓";
    color: #3898ff;
    font-weight: bold;
    margin-right: 10px;
    font-size: 1.1rem;
}

.intro-stats {
    display: flex;
    justify-content: space-around;
    margin-top: 30px;
    padding-top: 20px;
    border-top: 1px solid #eee;
}

.stat-item {
    text-align: center;
}

.stat-number {
    font-size: 2rem;
    font-weight: bold;
    color: #3898ff;
    display: block;
}

.stat-label {
    font-size: 0.9rem;
    color: #666;
    margin-top: 5px;
}

/* 响应式设计 */
@media (max-width: 968px) {
    .intro-container {
        flex-direction: column;
        gap: 40px;
    }

    .intro-text::before {
        display: none;
    }

    .intro-features {
        grid-template-columns: 1fr;
    }

    .intro-stats {
        flex-direction: column;
        gap: 20px;
    }
}

.advantages-section {
    padding: 80px 0;
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 60px;
}

.advantage-card {
    background: #fff;
    padding: 40px 30px;
    border-radius: 12px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.08);
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 1px solid #f0f0f0;
}

.advantage-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0,0,0,0.1);
}

.advantage-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #3898ff, #2d7ad9);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: white;
    margin: 0 auto 25px;
}

.advantage-card h4 {
    font-size: 1.3rem;
    margin-bottom: 15px;
    color: #333;
}

.advantage-card p {
    color: #666;
    line-height: 1.6;
}

.contact-cta {
    background: linear-gradient(135deg, #3898ff, #2d7ad9);
    color: white;
    padding: 80px 0;
    text-align: center;
}

.contact-cta h3 {
    font-size: 32px;
    margin-bottom: 20px;
}

.contact-info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin: 50px 0;
}

.contact-info-item {
    background: rgba(255,255,255,0.1);
    padding: 30px;
    border-radius: 12px;
    backdrop-filter: blur(10px);
}

.contact-info-item h5 {
    font-size: 1.1rem;
    margin-bottom: 10px;
    opacity: 0.9;
}

.contact-info-item p {
    font-size: 1.3rem;
    font-weight: bold;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .about-banner h1 {
        font-size: 28px;
    }

    .section-title {
        font-size: 24px;
    }

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

    .contact-cta h3 {
        font-size: 24px;
    }
}

/* 右侧固定功能区样式 */
.fixed-sidebar-right {
    position: fixed;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    z-index: 1000;
    background: #fff;
    border-radius: 10px 0 0 10px;
    box-shadow: -4px 0 20px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    min-width: 60px;
}

.sidebar-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 15px 10px;
    cursor: pointer;
    transition: all 0.3s ease;
    border-bottom: 1px solid #f0f0f0;
    background: #fff;
}

.sidebar-item:last-child {
    border-bottom: none;
}

.sidebar-item:hover {
    background: #333;
    color: #fff;
}

.sidebar-icon {
    font-size: 20px;
    margin-bottom: 5px;
    transition: color 0.3s ease;
}

.sidebar-item:hover .sidebar-icon {
    color: #fff;
}

.sidebar-text {
    font-size: 12px;
    font-weight: 500;
    text-align: center;
    color: #333;
    transition: color 0.3s ease;
}

.sidebar-item:hover .sidebar-text {
    color: #fff;
}

/* 用户下拉菜单样式 */
.user-dropdown {
    position: relative;
    display: inline-block;
    margin-left: 20px;
}

.user-info {
    display: flex;
    align-items: center;
    cursor: pointer;
    padding: 8px 15px;
    background: linear-gradient(135deg, #3898ff, #2d7ad9);
    color: #fff;
    border-radius: 25px;
    transition: all 0.3s ease;
    min-width: 120px;
    justify-content: center;
}

.user-info:hover {
    background: linear-gradient(135deg, #3898ff, #2d7ad9);
    transform: translateY(-1px);
    box-shadow: 0 4px 15px rgba(108, 122, 224, 0.3);
}

.user-info i {
    margin: 0 5px;
}

.username {
    font-size: 14px;
    font-weight: 500;
    margin: 0 5px;
}

.user-info .fa-chevron-down {
    font-size: 12px;
    transition: transform 0.3s ease;
}

.user-dropdown:hover .fa-chevron-down {
    transform: rotate(180deg);
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: -25px;
    background: #fff;
    border-radius: 10px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
    min-width: 200px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s ease;
    z-index: 1000;
    border: 1px solid #e8e8e8;
    margin-top: 5px;
}

.user-dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.menu-header {
    padding: 15px 20px;
    border-bottom: 1px solid #f0f0f0;
    background: linear-gradient(135deg, #f8f9ff, #f0f2ff);
    border-radius: 10px 10px 0 0;
    display: flex;
    align-items: center;
}

.user-avatar {
    font-size: 24px;
    color: #3898ff;
    margin-right: 10px;
}

.user-mobile {
    font-weight: 600;
    color: #333;
    font-size: 14px;
}

.menu-item {
    display: flex;
    align-items: center;
    padding: 12px 20px;
    color: #555;
    text-decoration: none;
    transition: all 0.3s ease;
    border-bottom: 1px solid #f5f5f5;
}

.menu-item:last-child {
    border-bottom: none;
    border-radius: 0 0 10px 10px;
}

.menu-item:hover {
    background: #f8f9ff;
    color: #3898ff;
}

.menu-item i {
    font-size: 16px;
    margin-right: 12px;
    width: 20px;
    text-align: center;
}

.menu-item span {
    font-size: 14px;
    font-weight: 500;
}

.menu-item.logout:hover {
    background: #fff5f5;
    color: #e74c3c;
}

/* 微信商务链接样式 */
.wechat-business-link {
    color: #e74c3c;
    cursor: pointer;
    text-decoration: underline;
    transition: color 0.3s ease;
}

.wechat-business-link:hover {
    color: #e74c3c;
}

/* 微信弹框样式 */
.wechat-modal-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    z-index: 10000;
    backdrop-filter: blur(5px);
}

.wechat-modal {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: #fff;
    border-radius: 15px;
    padding: 0;
    min-width: 320px;
    max-width: 400px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    animation: modalSlideIn 0.3s ease-out;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translate(-50%, -60%);
        scale: 0.9;
    }
    to {
        opacity: 1;
        transform: translate(-50%, -50%);
        scale: 1;
    }
}

.wechat-modal-header {
    background: linear-gradient(135deg, #6c7ae0, #5a6fd8);
    color: #fff;
    padding: 20px;
    border-radius: 15px 15px 0 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.wechat-modal-header h4 {
    margin: 0;
    font-size: 18px;
    font-weight: 600;
}

.wechat-modal-header h4 {
    margin: 0;
    font-size: 16px;
    font-weight: 600;
}

.wechat-modal-close {
    font-size: 24px;
    cursor: pointer;
    opacity: 0.8;
    transition: opacity 0.3s ease;
}

.wechat-modal-close:hover {
    opacity: 1;
}

.wechat-modal-body {
    padding: 30px;
    text-align: center;
}

.wechat-qr-image {
    width: 200px;
    height: 200px;
    border-radius: 10px;
    margin-bottom: 15px;
    border: 3px solid #f0f0f0;
}

.wechat-modal-body p {
    margin: 0;
    color: #666;
    font-size: 14px;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .fixed-sidebar-right {
        right: 0;
        min-width: 50px;
        border-radius: 8px 0 0 8px;
    }

    .sidebar-item {
        padding: 12px 8px;
    }

    .sidebar-icon {
        font-size: 18px;
    }

    .sidebar-text {
        font-size: 11px;
    }

    .wechat-modal {
        margin: 20px;
        min-width: auto;
        max-width: none;
        width: calc(100% - 40px);
    }

    .wechat-qr-image {
        width: 160px;
        height: 160px;
    }

    .user-dropdown {
        margin-left: 10px;
    }
    
    .user-info {
        padding: 6px 12px;
        min-width: 100px;
        font-size: 13px;
    }
    
    .dropdown-menu {
        min-width: 180px;
        left: -10px;
    }
}