/* ==================== 全局重置与基础样式 ==================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: "Microsoft YaHei", "微软雅黑", Arial, sans-serif;
}

body {
    color: #333;
    line-height: 1.6;
    background-color: #f8f9fa;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

a {
    text-decoration: none;
    color: #007bff;
}



/* ==================== 公共布局 ==================== */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    flex: 1;
}

/* ==================== 导航栏 ==================== */
header {
    background: #fff;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 99;
}

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

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: #2563eb;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo i {
    font-size: 1.8rem;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 5px;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background-color: #475569;
    transition: all 0.3s ease;
    border-radius: 2px;
}

@media (max-width: 768px) {
    .hamburger {
        display: flex;
        z-index: 101;
    }

    .nav-links {
        display: flex !important;
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 300px;
        height: 100vh;
        background-color: #fff;
        flex-direction: column;
        justify-content: flex-start;
        align-items: flex-start;
        padding: 80px 2rem 2rem;
        gap: 1.5rem;
        transition: right 0.3s ease;
        box-shadow: -4px 0 15px rgba(0,0,0,0.1);
        z-index: 100;
    }

    .nav-links.active {
        right: 0 !important;
    }

    .nav-links a {
        width: 100%;
        padding: 0.5rem 0;
        border-bottom: 1px solid #e2e8f0;
    }

    .dropdown {
        width: 100%;
    }

    .dropdown-menu {
        position: static;
        box-shadow: none;
        border: none;
        padding-left: 1rem;
        margin-top: 0.5rem;
        display: none;
    }

    .dropdown:hover .dropdown-menu,
    .dropdown.active .dropdown-menu {
        display: block;
    }

    .download-btn {
        width: 100%;
        text-align: center;
        margin-top: 1rem;
    }
}

.nav-links a {
    color: #475569;
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-links a:hover {
    color: #2563eb;
}

.download-btn {
    padding: 0.8rem 1.5rem;
    background: #2563eb;
    color: #fff !important;
    border-radius: 8px;
    transition: background 0.3s ease;
}

.download-btn:hover {
    background: #1d4ed8;
}

/* ==================== 右侧悬浮客服窗 ==================== */
.float-contact {
    position: fixed;
    right: 30px;
    bottom: 30px;
    z-index: 999;
}

.contact-btn {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: #2563eb;
    color: #fff;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    box-shadow: 0 4px 15px rgba(37,99,235,0.3);
    transition: all 0.3s ease;
}

.contact-btn:hover {
    transform: scale(1.1);
}

.contact-panel {
    width: 300px;
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 8px 30px rgba(0,0,0,0.1);
    padding: 2rem;
    position: absolute;
    right: 0;
    bottom: 80px;
    display: none;
}

.contact-panel.show {
    display: block;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.contact-close {
    position: absolute;
    top: 15px;
    right: 15px;
    font-size: 1.2rem;
    color: #94a3b8;
    cursor: pointer;
}

.contact-close:hover {
    color: #ef4444;
}

.contact-panel h4 {
    color: #1e293b;
    text-align: center;
    margin-bottom: 1rem;
}

.qrcode-img {
    width: 100%;
    padding: 1rem;
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    margin: 1rem 0;
}

.qrcode-img img {
    width: 100%;
    height: auto;
}

.contact-panel p {
    color: #64748b;
    text-align: center;
    margin: 0.5rem 0;
}

/* ==================== 页脚 ==================== */
footer {
    background: #1e293b;
    color: #cbd5e1;
    padding: 3rem 0;
    margin-top: 0rem;
}

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

.footer-links {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.footer-links a {
    color: #cbd5e1;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: #2563eb;
}

footer p {
    text-align: center;
    font-size: 0.95rem;
}

/* ==================== index.html 特有样式 ==================== */

/* 英雄区 */
.hero {
    padding: 80px 0;
    background: linear-gradient(135deg, #e8f4f8 0%, #f0f8fb 100%);
    text-align: center;
}

.hero h1 {
    font-size: 42px;
    margin-bottom: 20px;
    color: #222;
}

.hero h1 span {
    color: #007bff;
}

.hero p {
    font-size: 18px;
    color: #666;
    max-width: 700px;
    margin: 0 auto 30px;
}

.hero-img {
    max-width: 300px;
    margin: 40px auto;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

/* 核心功能区 */
.features {
    padding: 80px 0;
    background-color: #fff;
}

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

.section-title h2 {
    font-size: 32px;
    margin-bottom: 15px;
    color: #222;
}

.section-title p {
    color: #666;
    font-size: 16px;
    max-width: 500px;
    margin: 0 auto;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.feature-card {
    background-color: #f8f9fa;
    padding: 30px;
    border-radius: 10px;
    text-align: center;
    transition: transform 0.3s, box-shadow 0.3s;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0,0,0,0.1);
}

.feature-card i {
    font-size: 40px;
    color: #007bff;
    margin-bottom: 20px;
}

.feature-card h3 {
    font-size: 20px;
    margin-bottom: 15px;
    color: #222;
}

.feature-card p {
    color: #666;
    font-size: 15px;
}

/* 硬件配套区 */
.hardware {
    padding: 80px 0;
    background-color: #f8f9fa;
}

.hardware-content {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 40px;
    justify-content: center;
}

.hardware-img {
    flex: 1;
    min-width: 300px;
    text-align: center;
}

.hardware-img img {
    max-width: 250px;
    border-radius: 10px;
    box-shadow: 0 10px 20px rgba(0,0,0,0.1);
}

.hardware-text {
    flex: 1;
    min-width: 300px;
}

.hardware-text h3 {
    font-size: 26px;
    margin-bottom: 20px;
    color: #222;
}

.hardware-text ul {
    list-style: none;
    margin-bottom: 30px;
}

.hardware-text li {
    margin: 15px 0;
    display: flex;
    align-items: flex-start;
    gap: 10px;
}

.hardware-text li i {
    color: #007bff;
    font-size: 18px;
    margin-top: 4px;
}

.hardware-text p {
    color: #666;
    line-height: 1.8;
}

.hardware-btn {
    display: inline-block;
    background: #007bff;
    color: #fff;
    padding: 10px 25px;
    border-radius: 6px;
    text-decoration: none;
    transition: background-color 0.3s;
}

.hardware-btn:hover {
    background: #0056b3;
}

/* 管理后台区 */
.admin-platform {
    padding: 80px 0;
    background-color: #fff;
}

.admin-content {
    display: flex;
    flex-wrap: wrap-reverse;
    align-items: center;
    gap: 40px;
    justify-content: center;
}

@media (max-width: 768px) {
    .admin-content {
        flex-direction: column;
        gap: 20px;
    }
    
    .admin-img img {
        max-width: 100%;
        height: auto;
    }
}

.admin-img {
    flex: 1;
    min-width: 0;
    text-align: center;
}

.admin-img img {
    max-width: 100%;
    height: auto;
    border-radius: 10px;
    box-shadow: 0 10px 20px rgba(0,0,0,0.1);
}

.admin-text {
    flex: 1;
    min-width: 300px;
}

.admin-text h3 {
    font-size: 26px;
    margin-bottom: 20px;
    color: #222;
}

.admin-text ul {
    list-style: none;
    margin-bottom: 30px;
}

.admin-text li {
    margin: 15px 0;
    display: flex;
    align-items: flex-start;
    gap: 10px;
}

.admin-text li i {
    color: #007bff;
    font-size: 18px;
    margin-top: 4px;
}

.admin-text p {
    color: #666;
    line-height: 1.8;
}

.admin-btn {
    display: inline-block;
    background: #007bff;
    color: #fff;
    padding: 10px 25px;
    border-radius: 6px;
    text-decoration: none;
    transition: background-color 0.3s;
}

.admin-btn:hover {
    background: #0056b3;
}

/* 使用流程 */
.process {
    padding: 80px 0;
    background-color: #f8f9fa;
}

.process-brief {
    text-align: center;
    margin-bottom: 40px;
    font-size: 16px;
    color: #666;
}

.process-brief strong {
    color: #007bff;
}

.process-steps {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 20px;
    margin-top: 20px;
}

.process-step {
    flex: 1;
    min-width: 180px;
    text-align: center;
    position: relative;
    padding: 0 10px;
}

.process-step::after {
    content: "";
    position: absolute;
    top: 30px;
    right: -10px;
    width: 20px;
    height: 2px;
    background-color: #007bff;
    display: none;
}

.process-step:last-child::after {
    display: none;
}

@media (min-width: 768px) {
    .process-step::after {
        display: block;
    }
}

.step-number {
    width: 60px;
    height: 60px;
    background-color: #007bff;
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    margin: 0 auto 20px;
}

.process-step h3 {
    font-size: 18px;
    margin-bottom: 10px;
    color: #222;
}

.process-step p {
    color: #666;
    font-size: 14px;
}

/* 价格套餐 */
.pricing {
    padding: 80px 0;
    background-color: #fff;
}

.pricing-cards {
    display: flex;
    flex-wrap: wrap;
    gap: 30px;
    justify-content: center;
    margin-top: 40px;
}

.pricing-card {
    flex: 1;
    min-width: 280px;
    max-width: 320px;
    background: #f8f9fa;
    border-radius: 12px;
    padding: 30px;
    text-align: center;
    box-shadow: 0 4px 12px rgba(0,0,0,0.05);
    transition: transform 0.3s;
    display: flex;
    flex-direction: column;
    min-height: 600px;
}

.pricing-card:hover {
    transform: translateY(-5px);
}

.pricing-card.recommended {
    background: #e8f4f8;
    box-shadow: 0 4px 16px rgba(0,123,255,0.15);
    position: relative;
    overflow: hidden;
}

.pricing-card.recommended .badge {
    position: absolute;
    top: 15px;
    right: -35px;
    background: #007bff;
    color: #fff;
    padding: 5px 40px;
    transform: rotate(45deg);
    font-size: 12px;
}

.pricing-card h3 {
    font-size: 22px;
    margin-bottom: 10px;
    color: #222;
}

.pricing-card .desc {
    color: #666;
    margin-bottom: 20px;
}

.pricing-card .price {
    font-size: 28px;
    font-weight: bold;
    color: #007bff;
    margin-bottom: 20px;
}

.pricing-card ul {
    list-style: none;
    padding: 0;
    margin-bottom: 20px;
    text-align: left;
    flex: 1;
}

.pricing-card li {
    margin: 10px 0;
    color: #555;
}

.pricing-card .btn {
    display: inline-block;
    background: #007bff;
    color: #fff;
    padding: 10px 25px;
    border-radius: 6px;
    text-decoration: none;
    transition: background-color 0.3s;
    width: 100%;
    margin-top: auto;
}

.pricing-card .btn:hover {
    background: #0056b3;
}

/* 下载/解决方案咨询区 */
.download {
    padding: 80px 0;
    background-color: #007bff;
    color: #fff;
    text-align: center;
}

.download h2 {
    font-size: 32px;
    margin-bottom: 20px;
}

.download p {
    font-size: 18px;
    margin-bottom: 40px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.download-btns {
    display: flex;
    justify-content: center;
    gap: 30px;
    flex-wrap: wrap;
}

.app-btn {
    background-color: #fff;
    color: #007bff;
    padding: 15px 30px;
    border-radius: 10px;
    font-size: 18px;
    display: flex;
    align-items: center;
    gap: 10px;
    transition: transform 0.3s;
    cursor: pointer;
}

.app-btn:hover {
    transform: scale(1.05);
}

.app-btn i {
    font-size: 24px;
}

/* ==================== jiesao.html 特有样式 ==================== */

/* 页面头部 */
.header-content {
    text-align: center;
    margin-bottom: 40px;
    padding-bottom: 20px;
    border-bottom: 3px solid #2563eb;
    padding-top: 20px;
}

.header-content h1 {
    font-size: 32px;
    color: #1e40af;
    margin-bottom: 10px;
}

.header-content p {
    font-size: 18px;
    color: #4b5563;
}

/* 内容区块 - jiesao 页面 */
.section-page {
    background: #ffffff;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
    padding: 30px;
    margin-bottom: 25px;
}

.section-page h2 {
    font-size: 24px;
    color: #1e40af;
    margin-bottom: 20px;
    position: relative;
    padding-left: 18px;
}

.section-page h2::before {
    content: "";
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 6px;
    height: 24px;
    background-color: #2563eb;
    border-radius: 3px;
}

.section-page p {
    font-size: 16px;
    color: #374151;
    margin-bottom: 15px;
    text-align: justify;
}

/* 步骤列表 */
.step-list, .pain-list, .adv-list {
    margin-left: 25px;
    padding-left: 0;
    list-style-position: inside;
}

.step-list li {
    font-size: 16px;
    color: #374151;
    margin-bottom: 30px;
    list-style: decimal;
    display: block;
}

/* 步骤图片/视频容器 */
.step-img-container, .step-media-container {
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 15px 0;
    padding: 0;
}

.step-img {
    max-width: 500px;
    width: 100%;
    height: auto;
    border-radius: 8px;
    border: 1px solid #eee;
    box-shadow: 0 2px 6px rgba(0,0,0,0.05);
}

.step-video {
    max-width: 500px;
    max-height: 300px;
    width: 100%;
    height: auto;
    border-radius: 8px;
    border: 1px solid #eee;
    box-shadow: 0 2px 6px rgba(0,0,0,0.05);
}

.pain-list li, .adv-list li {
    font-size: 16px;
    color: #374151;
    margin-bottom: 12px;
    list-style: disc;
}

.step-list li strong, .adv-list li strong {
    color: #1e40af;
}

/* ==================== 响应式适配 ==================== */
@media (max-width: 768px) {
    /* 导航栏响应式 - 已在前面定义，避免重复 */
    .logo {
        font-size: 20px;
    }
    .download-btn {
        padding: 6px 15px;
        font-size: 14px;
    }
    
    /* 悬浮窗响应式 */
    .float-contact {
        right: 20px;
        bottom: 20px;
    }
    
    /* index 页面响应式 */
    .hero h1 {
        font-size: 32px;
    }
    .section-title h2 {
        font-size: 28px;
    }
    .download-btns {
        flex-direction: column;
        align-items: center;
    }
    .app-btn {
        width: 250px;
        justify-content: center;
    }
    .process-steps {
        gap: 30px;
    }
    .process-step::after {
        display: none;
    }
    .hardware-text h3, .admin-text h3 {
        font-size: 22px;
    }
    .pricing-card {
        min-height: auto;
    }
    
    /* jiesao 页面响应式 */
    .header-content h1 {
        font-size: 26px;
    }
    .header-content p {
        font-size: 16px;
    }
    .section-page {
        padding: 20px;
    }
    .section-page h2 {
        font-size: 20px;
    }
    .section-page p, .step-list li, .pain-list li, .adv-list li {
        font-size: 15px;
    }
    .step-img, .step-video {
        max-width: 100%;
        max-height: 250px;
    }
    
    /* 页脚响应式 */
    .footer-links {
        gap: 15px;
    }
}

@media (max-width: 480px) {
    .footer-links {
        flex-direction: column;
        gap: 10px;
    }
}
/* ==================== paipai.html 特有样式 ==================== */

body {
    background-color: #f5f7fa;
}

/* 板块通用样式 */
.paipai-section {
    margin: 4rem 0;
    padding: 3rem;
    border-radius: 16px;
    background: #fff;
    box-shadow: 0 4px 20px rgba(0,0,0,0.04);
    transition: all 0.3s ease;
}

.paipai-section:hover {
    box-shadow: 0 8px 30px rgba(0,0,0,0.06);
}

.paipai-section h2 {
    position: relative;
    display: inline-block;
    margin-bottom: 2.5rem;
    padding-bottom: 1rem;
    font-size: 2rem;
    color: #1e293b;
    font-weight: 700;
}

.paipai-section h2::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 70px;
    height: 4px;
    background: #2563eb;
    border-radius: 2px;
}

.paipai-section > p {
    margin-bottom: 1.5rem;
    line-height: 1.8;
    color: #475569;
    font-size: 1.05rem;
}

/* 痛点卡片布局 */
.pain-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-top: 1rem;
}

.pain-card {
    padding: 2rem 1.5rem;
    border-radius: 12px;
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.pain-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 24px rgba(0,0,0,0.08);
    border-color: #2563eb;
}

.pain-icon {
    width: 70px;
    height: 70px;
    border-radius: 50%;
    background: #eff6ff;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.2rem;
}

.pain-icon i {
    font-size: 1.8rem;
    color: #2563eb;
}

.pain-content h3 {
    margin-bottom: 0.8rem;
    color: #1e293b;
    font-size: 1.2rem;
}

.pain-content p {
    line-height: 1.6;
    color: #64748b;
}

/* 核心优势布局 */
.adv-cards {
    display: flex;
    flex-direction: column;
    gap: 1.8rem;
    margin-top: 1rem;
}

.adv-card {
    display: grid;
    grid-template-columns: 80px 1fr;
    gap: 1.5rem;
    align-items: center;
    padding: 2rem;
    border-radius: 12px;
    background: #f8fafc;
    border-left: 4px solid transparent;
    transition: all 0.3s ease;
}

.adv-card:hover {
    border-left-color: #2563eb;
    background: #eff6ff;
    box-shadow: 0 4px 12px rgba(0,0,0,0.05);
}

.adv-number {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: #2563eb;
    color: #fff;
    font-size: 1.8rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.adv-content h3 {
    margin-bottom: 0.8rem;
    color: #1e293b;
    font-size: 1.2rem;
}

.adv-content p {
    line-height: 1.7;
    color: #64748b;
}

/* 产品介绍优化样式 */
.product-intro {
    display: grid;
    grid-template-columns: 1fr 400px;
    gap: 2.5rem;
    align-items: center;
    margin-top: 1rem;
}

.intro-text .highlight {
    display: inline-block;
    padding: 0.3rem 0.8rem;
    background: #eff6ff;
    color: #2563eb;
    border-radius: 6px;
    font-weight: 500;
    margin: 0 0.2rem;
}

.intro-img {
    width: 100%;
    height: auto;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 6px 20px rgba(37, 99, 235, 0.1);
    border: 1px solid #e2e8f0;
}

.intro-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.intro-img:hover img {
    transform: scale(1.03);
}

/* 使用方法优化样式 */
.step-list {
    counter-reset: step-counter;
    display: flex;
    flex-direction: column;
    gap: 2.5rem;
    margin-top: 2rem;
}

.step-list li {
    counter-increment: step-counter;
    display: grid;
    grid-template-columns: 70px 1fr 300px;
    gap: 2rem;
    align-items: center;
    padding: 2rem;
    border-radius: 12px;
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    transition: all 0.3s ease;
}

.step-list li:hover {
    box-shadow: 0 6px 15px rgba(0,0,0,0.05);
    border-color: #eff6ff;
}

.step-list li::before {
    content: counter(step-counter);
    width: 70px;
    height: 70px;
    border-radius: 50%;
    background: #2563eb;
    color: #fff;
    font-size: 1.8rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.step-text {
    flex: 1;
}

.step-text strong {
    display: block;
    font-size: 1.2rem;
    color: #1e293b;
    margin-bottom: 0.8rem;
}

.step-text p {
    color: #64748b;
    line-height: 1.7;
}

.step-media {
    width: 100%;
    height: auto;
    border-radius: 8px;
    overflow: hidden;
    border: 1px solid #e2e8f0;
}

.step-media img, .step-media video {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* 头部标题 */
.paipai-header-content {
    text-align: center;
    padding: 4rem 0;
}

.paipai-header-content h1 {
    font-size: 3rem;
    color: #1e293b;
    margin-bottom: 1rem;
}

.paipai-header-content p {
    font-size: 1.2rem;
    color: #64748b;
    max-width: 800px;
    margin: 0 auto;
}

/* 页脚样式 */
.paipai-footer {
    background: #1e293b;
    color: #cbd5e1;
    padding: 3rem 0;
    margin-top: 5rem;
}

.paipai-footer-links {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.paipai-footer-links a {
    color: #cbd5e1;
    transition: color 0.3s ease;
}

.paipai-footer-links a:hover {
    color: #2563eb;
}

.paipai-footer p {
    text-align: center;
    font-size: 0.95rem;
}

/* 下拉菜单样式（电脑端） */
@media (min-width: 769px) {
    .dropdown {
        position: relative;
    }

    .dropdown-toggle {
        cursor: pointer;
        display: flex;
        align-items: center;
        gap: 5px;
    }

    .dropdown-menu {
        position: absolute;
        top: 100%;
        left: 0;
        background: #fff;
        min-width: 120px;
        box-shadow: 0 2px 8px rgba(0,0,0,0.1);
        border-radius: 4px;
        padding: 8px 0;
        display: none;
        z-index: 999;
    }

    .dropdown-menu a {
        display: block;
        padding: 8px 16px;
        color: #333;
        text-decoration: none;
    }

    .dropdown-menu a:hover {
        background-color: #f5f5f5;
    }

    .dropdown:hover .dropdown-menu {
        display: block;
    }
}

/* paipai.html 响应式适配 */
@media (max-width: 1024px) {
    .product-intro {
        grid-template-columns: 1fr;
    }
    .intro-img {
        max-width: 400px;
        margin: 0 auto;
    }
    .step-list li {
        grid-template-columns: 70px 1fr;
        gap: 1.5rem;
    }
    .step-media {
        grid-column: 1 / 3;
        max-width: 400px;
        margin: 0 auto;
    }
}

@media (max-width: 768px) {
    .paipai-section {
        padding: 2rem 1.5rem;
        margin: 2rem 0;
    }
    .paipai-section h2 {
        font-size: 1.8rem;
    }
    .paipai-header-content h1 {
        font-size: 2.5rem;
    }
    .nav-links {
        gap: 1rem;
    }
    .adv-card {
        grid-template-columns: 60px 1fr;
        padding: 1.5rem;
    }
    .adv-number {
        width: 60px;
        height: 60px;
        font-size: 1.5rem;
    }
    .pain-cards {
        grid-template-columns: 1fr;
    }
    .step-list li {
        padding: 1.5rem;
        gap: 1rem;
    }
    .step-list li::before {
        width: 60px;
        height: 60px;
        font-size: 1.5rem;
    }
}

@media (max-width: 480px) {
    .paipai-header-content h1 {
        font-size: 2rem;
    }
    .paipai-section {
        padding: 1.5rem 1rem;
    }
    .product-intro {
        gap: 1.5rem;
    }
    .step-list li {
        grid-template-columns: 50px 1fr;
    }
    .step-list li::before {
        width: 50px;
        height: 50px;
        font-size: 1.2rem;
    }
}

/* ==================== case.html 特有样式 ==================== */

body {
    background-color: #f5f7fa;
}

/* 头部标题样式 */
.case-header-content {
    text-align: center;
    padding: 4rem 0;
}

.case-header-content h1 {
    font-size: 3rem;
    color: #1e293b;
    margin-bottom: 1rem;
}

.case-header-content p {
    font-size: 1.2rem;
    color: #64748b;
    max-width: 800px;
    margin: 0 auto;
}

/* 案例卡片样式 */
.case-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.case-card {
    border-radius: 12px;
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    overflow: hidden;
    transition: all 0.3s ease;
}

.case-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 24px rgba(0,0,0,0.08);
    border-color: #2563eb;
}

.case-img {
    height: 200px;
    overflow: hidden;
}

.case-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

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

.case-content {
    padding: 1.8rem;
}

.case-content h3 {
    color: #1e293b;
    font-size: 1.3rem;
    margin-bottom: 1rem;
}

.case-desc {
    color: #64748b;
    line-height: 1.7;
    margin-bottom: 1.5rem;
}

.case-result {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.result-item {
    padding: 0.5rem 1rem;
    background: #eff6ff;
    color: #2563eb;
    border-radius: 6px;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* 合作价值板块样式 */
.case-value-section {
    margin-top: 4rem;
}

.case-value-section h3 {
    font-size: 1.8rem;
    color: #1e293b;
    text-align: center;
    margin-bottom: 2rem;
}

.value-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.value-card {
    padding: 2rem 1.5rem;
    border-radius: 12px;
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.value-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 24px rgba(0,0,0,0.08);
    border-color: #2563eb;
}

.value-icon {
    width: 70px;
    height: 70px;
    border-radius: 50%;
    background: #eff6ff;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.2rem;
}

.value-icon i {
    font-size: 1.8rem;
    color: #2563eb;
}

.value-card h4 {
    margin-bottom: 0.8rem;
    color: #1e293b;
    font-size: 1.2rem;
}

.value-card p {
    line-height: 1.6;
    color: #64748b;
}

/* 合作咨询板块 */
.case-contact-section {
    text-align: center;
    margin: 50px 0;
}

.case-contact-section h3 {
    font-size: 1.8rem;
    color: #1e293b;
}

.case-contact-section p {
    line-height: 1.8;
    margin: 20px 0;
    color: #475569;
}

/* case.html 响应式适配 */
@media (max-width: 768px) {
    .case-header-content h1 {
        font-size: 2.5rem;
    }
    .case-cards {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .case-header-content h1 {
        font-size: 2rem;
    }
}