/* 重置样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: #333;
    overflow-x: hidden;
}

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

/* 导航栏样式 */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    transition: all 0.3s ease;
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.nav-logo h2 {
    color: #2563eb;
    font-weight: 700;
    font-size: 1.8rem;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-link {
    text-decoration: none;
    color: #333;
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: #2563eb;
    transition: width 0.3s ease;
}

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

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

.nav-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.bar {
    width: 25px;
    height: 3px;
    background: #333;
    margin: 3px 0;
    transition: 0.3s;
}

/* Hero 区域样式 */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    position: relative;
    overflow: hidden;
}

.hero::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="50" cy="50" r="1" fill="rgba(255,255,255,0.1)"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
    opacity: 0.3;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-content {
    color: white;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    line-height: 1.2;
    animation: fadeInUp 0.8s ease-out;
}

.hero-description {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    opacity: 0.9;
    animation: fadeInUp 0.8s ease-out 0.2s both;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    animation: fadeInUp 0.8s ease-out 0.4s both;
}

.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.btn-primary {
    background: #2563eb;
    color: white;
}

.btn-primary:hover {
    background: #1d4ed8;
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(37, 99, 235, 0.3);
}

.btn-secondary {
    background: transparent;
    color: white;
    border-color: white;
}

.btn-secondary:hover {
    background: white;
    color: #2563eb;
    transform: translateY(-2px);
}

.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-illustration {
    position: relative;
    width: 400px;
    height: 400px;
}

.floating-card {
    position: absolute;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(15px);
    border-radius: 20px;
    padding: 25px;
    border: 1px solid rgba(255, 255, 255, 0.3);
    animation: float 3s ease-in-out infinite;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.2);
    transition: all 0.3s ease;
}

.floating-card:hover {
    transform: translateY(-10px) scale(1.05);
    background: rgba(255, 255, 255, 0.2);
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.3);
}

.floating-card:nth-child(1) {
    top: 20px;
    left: 20px;
    animation-delay: 0s;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.2) 0%, rgba(255, 255, 255, 0.1) 100%);
    border: 1px solid rgba(255, 255, 255, 0.4);
}

.floating-card:nth-child(1)::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    border-radius: 20px;
    animation: shimmer-card-1 4s infinite;
}

.floating-card:nth-child(2) {
    top: 150px;
    right: 20px;
    animation-delay: 1s;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.18) 0%, rgba(255, 255, 255, 0.08) 100%);
    border: 1px solid rgba(255, 255, 255, 0.35);
}

.floating-card:nth-child(2)::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.15), transparent);
    border-radius: 20px;
    animation: shimmer-card-2 3.5s infinite;
}

.floating-card:nth-child(3) {
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    animation-delay: 2s;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.22) 0%, rgba(255, 255, 255, 0.12) 100%);
    border: 1px solid rgba(255, 255, 255, 0.45);
}

.floating-card:nth-child(3)::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.25), transparent);
    border-radius: 20px;
    animation: shimmer-card-3 3s infinite;
}

.card-icon {
    font-size: 2.5rem;
    margin-bottom: 15px;
    color: white;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
    transition: all 0.3s ease;
}

.floating-card:hover .card-icon {
    transform: scale(1.2) rotate(5deg);
    text-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
}

.card-title {
    color: white;
    font-weight: 600;
    font-size: 1.1rem;
    text-shadow: 0 2px 5px rgba(0, 0, 0, 0.3);
    letter-spacing: 0.5px;
}

/* 通用样式 */
.section-title {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 3rem;
    color: #1f2937;
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: #2563eb;
    border-radius: 2px;
}

/* 核心优势样式 */
.features {
    padding: 100px 0;
    background: #f8fafc;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

/* 在大屏幕上优化6个卡片的布局 */
@media (min-width: 1200px) {
    .features-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* 一键修复功能特殊样式 */
/* 移除第5个卡片的特殊样式，保持统一 */

.feature-card {
    background: white;
    padding: 2rem;
    border-radius: 20px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    border: 1px solid rgba(37, 99, 235, 0.1);
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: #1f2937;
}

.feature-card p {
    color: #6b7280;
    line-height: 1.6;
}

/* 产品服务样式 */
.services {
    padding: 100px 0;
    background: white;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 3rem;
}

.service-card {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 2.5rem;
    border-radius: 20px;
    color: white;
    box-shadow: 0 15px 35px rgba(102, 126, 234, 0.3);
    transition: all 0.3s ease;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 25px 50px rgba(102, 126, 234, 0.4);
}

.service-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.service-card h3 {
    font-size: 1.8rem;
    margin-bottom: 1rem;
}

.service-card p {
    margin-bottom: 1.5rem;
    opacity: 0.9;
}

.service-list {
    list-style: none;
}

.service-list li {
    padding: 0.5rem 0;
    position: relative;
    padding-left: 20px;
}

.service-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: #10b981;
    font-weight: bold;
}

/* 应用场景样式 */
.industries {
    padding: 100px 0;
    background: #f8fafc;
}

.industries-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.industry-card {
    background: white;
    padding: 2rem;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    border: 1px solid rgba(37, 99, 235, 0.1);
}

.industry-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.12);
}

.industry-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.industry-card h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: #1f2937;
}

.industry-card p {
    color: #6b7280;
}

/* 检测行业特殊样式 */
.industry-card:nth-child(7) {
    background: linear-gradient(135deg, #f0fdf4 0%, #dcfce7 100%);
    border-color: #10b981;
}

.industry-card:nth-child(7) .industry-icon {
    color: #10b981;
}

.industry-card:nth-child(7):hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(16, 185, 129, 0.2);
}

/* 客户案例样式 */
.cases {
    padding: 100px 0;
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    position: relative;
}

.cases::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="case-pattern" width="30" height="30" patternUnits="userSpaceOnUse"><circle cx="15" cy="15" r="1" fill="rgba(37, 99, 235, 0.1)"/></pattern></defs><rect width="100" height="100" fill="url(%23case-pattern)"/></svg>');
    opacity: 0.5;
}

.section-subtitle {
    text-align: center;
    font-size: 1.2rem;
    color: #6b7280;
    margin-bottom: 3rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.cases-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    position: relative;
    z-index: 1;
}

.case-card {
    background: white;
    border-radius: 20px;
    padding: 2rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    border: 1px solid rgba(37, 99, 235, 0.1);
    position: relative;
    overflow: hidden;
}

.case-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #2563eb, #7c3aed);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.case-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.case-card:hover::before {
    transform: scaleX(1);
}

/* 检测行业案例特殊样式 */
.case-card:nth-child(7) {
    border-left: 4px solid #10b981;
}

.case-card:nth-child(7) .case-logo {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
}

.case-card:nth-child(8) {
    border-left: 4px solid #f59e0b;
}

.case-card:nth-child(8) .case-logo {
    background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
}

.case-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.case-logo {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
}

.case-company h3 {
    color: #1f2937;
    font-size: 1.3rem;
    margin-bottom: 0.3rem;
}

.case-industry {
    color: #6b7280;
    font-size: 0.9rem;
    background: #f3f4f6;
    padding: 0.2rem 0.8rem;
    border-radius: 20px;
}

.case-content h4 {
    color: #2563eb;
    font-size: 1.2rem;
    margin-bottom: 1rem;
}

.case-content p {
    color: #6b7280;
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.case-results {
    display: flex;
    gap: 1rem;
    justify-content: space-between;
}

.result-item {
    text-align: center;
    padding: 1rem;
    background: #f8fafc;
    border-radius: 10px;
    flex: 1;
}

.result-number {
    font-size: 1.5rem;
    font-weight: 700;
    color: #2563eb;
    display: block;
    margin-bottom: 0.3rem;
}

.result-label {
    font-size: 0.8rem;
    color: #6b7280;
}

/* 关于我们样式 */
.about {
    padding: 100px 0;
    background: white;
    position: relative;
}

.about::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="about-pattern" width="40" height="40" patternUnits="userSpaceOnUse"><circle cx="20" cy="20" r="0.5" fill="rgba(37, 99, 235, 0.05)"/></pattern></defs><rect width="100" height="100" fill="url(%23about-pattern)"/></svg>');
    opacity: 0.5;
}

.about-content {
    display: grid;
    grid-template-columns: 3fr 2fr;
    gap: 4rem;
    margin-bottom: 4rem;
    position: relative;
    z-index: 1;
}

.about-intro,
.about-mission,
.about-vision,
.about-values {
    margin-bottom: 2rem;
}

.about-intro h3,
.about-mission h3,
.about-vision h3,
.about-values h3 {
    color: #1f2937;
    font-size: 1.4rem;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.about-intro h3 i,
.about-mission h3 i,
.about-vision h3 i,
.about-values h3 i {
    color: #2563eb;
}

.about-intro p,
.about-mission p,
.about-vision p {
    color: #6b7280;
    line-height: 1.6;
    margin-bottom: 1rem;
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
}

.value-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem;
    background: #f8fafc;
    border-radius: 10px;
    transition: all 0.3s ease;
}

.value-item:hover {
    background: #e0e7ff;
    transform: translateY(-2px);
}

.value-item i {
    color: #2563eb;
    font-size: 1.2rem;
}

.value-item span {
    color: #374151;
    font-weight: 500;
}

.about-contact {
    background: #f8fafc;
    border-radius: 20px;
    padding: 1.2rem;
    border: 1px solid rgba(37, 99, 235, 0.1);
    height: fit-content;
    align-self: flex-start;
}

.contact-section,
.qrcode-section,
.about-cta {
    margin-bottom: 1.2rem;
}

.contact-section h3,
.qrcode-section h3,
.about-cta h3 {
    color: #1f2937;
    font-size: 1.3rem;
    margin-bottom: 0.8rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.contact-section h3 i,
.qrcode-section h3 i {
    color: #2563eb;
}

.contact-items {
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    padding: 0.8rem;
    background: white;
    border-radius: 10px;
    transition: all 0.3s ease;
}

.contact-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.contact-item i {
    color: #2563eb;
    font-size: 1.2rem;
    width: 24px;
}

.contact-item h4 {
    color: #1f2937;
    font-size: 1rem;
    margin-bottom: 0.2rem;
}

.contact-item p {
    color: #6b7280;
    font-size: 0.9rem;
}

.qrcodes {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

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

.qrcode-item .qrcode {
    width: 100px;
    height: 100px;
    margin-bottom: 0.4rem;
}

.qrcode-item p {
    color: #6b7280;
    font-size: 0.9rem;
}

.about-cta h3 {
    color: #2563eb;
    margin-bottom: 0.8rem;
}

.about-cta p {
    color: #6b7280;
    margin-bottom: 1.2rem;
}

.about-cta .cta-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.about-cta .btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 12px 24px;
}

/* 关于我们区域的按钮样式 */
.about-cta .btn-secondary {
    background: #f3f4f6;
    color: #374151;
    border-color: #d1d5db;
}

.about-cta .btn-secondary:hover {
    background: #e5e7eb;
    color: #1f2937;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    text-align: center;
    position: relative;
    z-index: 1;
}

.stat-item {
    background: white;
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.stat-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.15);
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: #2563eb;
    display: block;
    margin-bottom: 0.5rem;
}

.stat-label {
    color: #6b7280;
    font-size: 1rem;
}


/* 动画效果 */
@keyframes shimmer {
    0% {
        transform: translateX(-100%) translateY(-100%) rotate(45deg);
    }
    100% {
        transform: translateX(100%) translateY(100%) rotate(45deg);
    }
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.1);
    }
}

/* 页脚样式 */
.footer {
    background: #1f2937;
    color: white;
    padding: 50px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h3,
.footer-section h4 {
    margin-bottom: 1rem;
    color: #2563eb;
}

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

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section a {
    color: #9ca3af;
    text-decoration: none;
    transition: color 0.3s ease;
}

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

.social-links {
    display: flex;
    gap: 1rem;
}

.social-link {
    color: #9ca3af;
    text-decoration: none;
    padding: 0.5rem 1rem;
    border: 1px solid #374151;
    border-radius: 5px;
    transition: all 0.3s ease;
}

.social-link:hover {
    background: #2563eb;
    color: white;
    border-color: #2563eb;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid #374151;
    color: #9ca3af;
}

/* 动画效果 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-20px);
    }
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0);
    }
    40% {
        transform: translateY(-10px);
    }
    60% {
        transform: translateY(-5px);
    }
}

@keyframes shimmer {
    0% { transform: translateX(-100%) rotate(45deg); }
    100% { transform: translateX(200%) rotate(45deg); }
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .cases-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: white;
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
        padding: 2rem 0;
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-toggle {
        display: flex;
    }

    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-illustration {
        width: 300px;
        height: 300px;
    }

    .features-grid,
    .services-grid,
    .industries-grid,
    .cases-grid {
        grid-template-columns: 1fr;
    }

    .feature-card:nth-child(5) {
        grid-column: 1;
    }

    .about-content {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .cases-grid {
        gap: 1.5rem;
    }

    .case-card {
        padding: 1.5rem;
    }

    .about-stats {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }

    .about-contact {
        margin-top: 2rem;
    }

    .qrcodes {
        flex-direction: row;
        justify-content: center;
        gap: 1rem;
    }

    .qrcode-item .qrcode {
        width: 100px;
        height: 100px;
    }

    .about-cta .cta-buttons {
        flex-direction: column;
        align-items: center;
    }

    .about-cta .btn {
        width: 200px;
    }

    .about-stats {
        justify-content: center;
    }

    .hero-buttons {
        justify-content: center;
    }

    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .container {
        padding: 0 15px;
    }

    .service-card,
    .feature-card {
        padding: 1.5rem;
    }

    .cases-grid {
        gap: 1rem;
    }

    .case-card {
        padding: 1rem;
    }

    .case-header {
        flex-direction: column;
        text-align: center;
        gap: 0.5rem;
    }

    .case-logo {
        width: 50px;
        height: 50px;
    }

    .case-company h3 {
        font-size: 1.1rem;
    }

    .case-results {
        flex-direction: column;
        gap: 0.5rem;
    }

    .about-content {
        gap: 2rem;
    }

    .about-stats {
        grid-template-columns: 1fr;
    }

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

    .qrcodes {
        flex-direction: column;
        align-items: center;
    }

    .qrcode-item .qrcode {
        width: 80px;
        height: 80px;
    }

    .contact-items {
        gap: 0.8rem;
    }

    .contact-item {
        padding: 0.8rem;
        gap: 0.8rem;
    }

    .about-cta .cta-buttons {
        flex-direction: column;
        align-items: center;
    }

    .about-cta .btn {
        width: 180px;
        font-size: 0.9rem;
    }
}

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

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: #2563eb;
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: #1d4ed8;
}