/* Reset和基础样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

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

.container {
    max-width: 1600px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 通用按钮样式 */
.btn {
    display: inline-block;
    padding: 12px 30px;
    border: none;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    font-size: 16px;
    cursor: pointer;
    transition: all 0.3s ease;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: linear-gradient(135deg, #dc2626 0%, #b91c1c 100%);
    color: white;
    box-shadow: 0 4px 15px rgba(220, 38, 38, 0.4);
    position: relative;
    overflow: hidden;
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.btn-primary:hover::before {
    left: 100%;
}

.btn-primary:hover {
    box-shadow: 0 8px 25px rgba(220, 38, 38, 0.6);
}

.btn-secondary {
    background: transparent;
    color: #dc2626;
    border: 2px solid #dc2626;
}

.btn-secondary:hover {
    background: #dc2626;
    color: white;
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 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);
}

.navbar {
    padding: 1rem 0;
}

.nav-container {
    max-width: 1600px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 24px;
    font-weight: 700;
    color: #dc2626;
}

.logo-img {
    width: 40px;
    height: 40px;
}

.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:hover {
    color: #dc2626;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: #dc2626;
    transition: width 0.3s ease;
}

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

/* 下拉菜单样式 */
.nav-item {
    position: relative;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background: white;
    min-width: 200px;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
    border-radius: 8px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s ease;
    z-index: 1000;
    list-style: none;
    padding: 0.5rem 0;
    margin: 0;
    border: 1px solid rgba(0, 0, 0, 0.1);
}

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

.dropdown-menu li {
    margin: 0;
}

.dropdown-menu a {
    display: block;
    padding: 0.8rem 1.5rem;
    color: #333;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    border-left: 3px solid transparent;
}

.dropdown-menu a:hover {
    background: rgba(220, 38, 38, 0.05);
    color: #dc2626;
    border-left-color: #dc2626;
}

/* 导航栏联系方式 */
.nav-contact {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    color: #dc2626;
    font-size: 0.65rem;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.3s ease;
    padding: 0.3rem 0;
    line-height: 1.2;
}

.contact-item:hover {
    color: #b91c1c;
}

.contact-item i {
    font-size: 0.7rem;
    color: #dc2626;
}

/* 浮窗联系方式样式 */
.phone-item {
    position: relative;
}

.contact-link {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    color: #dc2626;
    text-decoration: none;
    transition: all 0.3s ease;
}

.contact-link:hover {
    color: #b91c1c;
    text-decoration: none;
}

.contact-popup {
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: 10px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s ease;
    z-index: 1000;
    min-width: 280px;
}

.phone-item:hover .contact-popup {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.popup-content {
    background: white;
    border-radius: 8px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.15);
    padding: 1.5rem;
    border: 1px solid rgba(220, 38, 38, 0.1);
    position: relative;
}

.popup-content h4 {
    font-size: 1.1rem;
    font-weight: 600;
    color: #333;
    margin: 0 0 1rem 0;
    text-align: center;
    border-bottom: 2px solid #dc2626;
    padding-bottom: 0.5rem;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.detail-item {
    display: flex;
    align-items: center;
    gap: 0.8rem;
}

.detail-item i {
    width: 32px;
    height: 32px;
    background: rgba(220, 38, 38, 0.1);
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #dc2626;
    font-size: 0.9rem;
    flex-shrink: 0;
}

.detail-item div {
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
}

.detail-item strong {
    font-size: 0.85rem;
    font-weight: 600;
    color: #333;
}

.detail-item span {
    font-size: 0.8rem;
    color: #666;
    font-weight: 500;
}

.popup-arrow {
    position: absolute;
    top: -6px;
    right: 20px;
    width: 12px;
    height: 12px;
    background: white;
    border: 1px solid rgba(220, 38, 38, 0.1);
    border-bottom: none;
    border-right: none;
    transform: rotate(45deg);
}

/* 汉堡菜单 */
.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

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

/* Hero Section */
.hero {
    min-height: 100vh;
    background: linear-gradient(135deg, #dc2626 0%, #b91c1c 100%);
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
}

.hero::after {
    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(255,255,255,0.1)"/><circle cx="75" cy="75" r="1" fill="rgba(255,255,255,0.1)"/><circle cx="50" cy="10" r="0.5" fill="rgba(255,255,255,0.05)"/><circle cx="10" cy="60" r="0.5" fill="rgba(255,255,255,0.05)"/><circle cx="90" cy="40" r="0.5" fill="rgba(255,255,255,0.05)"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
    opacity: 0.3;
    z-index: 1;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
}

.hero-container {
    width: 100%;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    z-index: 2;
    text-align: center;
    box-sizing: border-box;
}

.hero-content {
    color: white;
    width: 70%;
    margin: 0 auto;
    max-width: none;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    line-height: 1.2;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-subtitle {
    font-size: 1.5rem;
    font-weight: 400;
    margin-bottom: 2rem;
    opacity: 0.9;
    line-height: 1.5;
}

.hero-features {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 2rem;
}

.feature-tag {
    background: rgba(255, 255, 255, 0.2);
    padding: 0.5rem 1rem;
    border-radius: 25px;
    font-size: 0.9rem;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    transition: all 0.3s ease;
}

.feature-tag:hover {
    background: rgba(255, 255, 255, 0.3);
}

.hero-description {
    font-size: 1.2rem;
    margin-bottom: 3rem;
    opacity: 0.8;
    line-height: 1.6;
}

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

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

.hero-img {
    max-width: 100%;
    height: auto;
    filter: drop-shadow(0 20px 40px rgba(0, 0, 0, 0.3));
}

/* 通用Section样式 */
.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 700;
    color: #333;
    margin-bottom: 1rem;
}

.section-divider {
    width: 100px;
    height: 4px;
    background: linear-gradient(90deg, #dc2626, #b91c1c);
    margin: 0 auto 1rem;
    border-radius: 2px;
}

.section-header p {
    font-size: 1.1rem;
    color: #666;
    max-width: 600px;
    margin: 0 auto;
}

/* News Section */
.news-section {
    padding: 100px 0;
    background: #f8f9fa;
}

.news-section .container {
    max-width: 1600px;
}

.news-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
}

.news-list-item {
    background: white;
    padding: 1.5rem 2rem;
    border-radius: 12px;
    border-left: 4px solid #dc2626;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.news-list-item:hover {
    box-shadow: 0 4px 20px rgba(220, 38, 38, 0.15);
    border-left-color: #b91c1c;
}

.news-category-tag {
    background: linear-gradient(135deg, rgba(220, 38, 38, 0.1) 0%, rgba(245, 158, 11, 0.1) 100%);
    color: #dc2626;
    padding: 0.4rem 1rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    white-space: nowrap;
    flex-shrink: 0;
}

.news-list-title {
    font-size: 1.05rem;
    font-weight: 600;
    color: #1e293b;
    margin: 0;
    flex: 1;
    line-height: 1.5;
}

.news-date-text {
    color: #94a3b8;
    font-size: 0.9rem;
    white-space: nowrap;
    flex-shrink: 0;
}

.loading {
    text-align: center;
    padding: 3rem;
    color: #666;
}

.loading i {
    font-size: 2rem;
    color: #dc2626;
    margin-bottom: 1rem;
}

.loading p {
    font-size: 1rem;
    color: #64748b;
}

.no-news {
    text-align: center;
    padding: 3rem;
    color: #94a3b8;
}

.loading-state,
.error-state {
    text-align: center;
    padding: 3rem;
    color: #666;
}

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 4px solid #f3f3f3;
    border-top: 4px solid #dc2626;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 1rem;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.news-item {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    cursor: pointer;
}

.news-item:hover {
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
}

.news-image {
    height: 200px;
    overflow: hidden;
}

.news-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

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

.news-content {
    padding: 1.5rem;
}

.news-title {
    font-size: 1.3rem;
    font-weight: 600;
    color: #333;
    margin-bottom: 0.8rem;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-excerpt {
    color: #666;
    line-height: 1.6;
    margin-bottom: 1rem;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.9rem;
    color: #999;
}

.news-date {
    color: #666;
}

.news-category {
    background: #dc2626;
    color: white;
    padding: 0.2rem 0.8rem;
    border-radius: 12px;
    font-size: 0.8rem;
}

/* Features Section */
.features-section {
    padding: 100px 0;
    background: white;
}

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

.feature-card {
    background: linear-gradient(135deg, #fefefe 0%, #f8fafc 100%);
    padding: 2.5rem 2rem;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    border: 1px solid rgba(220, 38, 38, 0.1);
}

.feature-card:hover {
    box-shadow: 0 8px 30px rgba(220, 38, 38, 0.2);
    border-color: rgba(220, 38, 38, 0.3);
}

.feature-icon {
    font-size: 3rem;
    color: #dc2626;
    margin-bottom: 1.5rem;
}

.feature-title {
    font-size: 1.3rem;
    font-weight: 600;
    color: #333;
    margin-bottom: 1rem;
}

.feature-description {
    color: #666;
    line-height: 1.6;
}

/* Modules Section */
.modules-section {
    padding: 100px 0;
    background: #f8f9fa;
}

.modules-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.module-card {
    background: linear-gradient(135deg, #fefefe 0%, #f8fafc 100%);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.module-card:hover {
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
}

.module-header {
    background: linear-gradient(135deg, #dc2626 0%, #b91c1c 100%);
    color: white;
    padding: 2rem;
    text-align: center;
}

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

.module-title {
    font-size: 1.4rem;
    font-weight: 600;
    margin: 0;
}

.module-content {
    padding: 2rem;
}

.module-features {
    list-style: none;
    margin: 0;
}

.module-features li {
    padding: 0.8rem 0;
    color: #666;
    border-bottom: 1px solid #f0f0f0;
    position: relative;
    padding-left: 2rem;
    line-height: 1.5;
}

.module-features li:before {
    content: '✓';
    position: absolute;
    left: 0;
    color: #dc2626;
    font-weight: bold;
    font-size: 1.1rem;
}

.module-features li:last-child {
    border-bottom: none;
}

/* Cases Section */
.cases-section {
    padding: 100px 0;
    background: white;
}

.cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.case-card {
    background: linear-gradient(135deg, #fefefe 0%, #f8fafc 100%);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.case-card:hover {
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
}

.case-header {
    background: linear-gradient(135deg, #dc2626 0%, #b91c1c 100%);
    color: white;
    padding: 2rem;
}

.case-title {
    font-size: 1.4rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.case-stats {
    display: flex;
    gap: 2rem;
}

.stat {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 1.8rem;
    font-weight: 700;
    color: rgba(255, 255, 255, 0.9);
}

.stat-label {
    font-size: 0.9rem;
    opacity: 0.8;
}

.case-content {
    padding: 2rem;
}

.case-description {
    color: #666;
    line-height: 1.6;
}

/* Contact Section */
.contact-section {
    padding: 100px 0;
    background: #f8f9fa;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    margin-top: 3rem;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    background: white;
    padding: 1.5rem;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.contact-item i {
    font-size: 1.5rem;
    color: #dc2626;
    width: 40px;
    text-align: center;
}

.contact-item h4 {
    font-size: 1.1rem;
    font-weight: 600;
    color: #333;
    margin-bottom: 0.5rem;
}

.contact-item p {
    color: #666;
    margin: 0;
}

.contact-form {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 1rem;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
    font-family: inherit;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #dc2626;
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

/* Footer */
.footer {
    background: #2c3e50;
    color: white;
    padding: 60px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    margin-bottom: 2rem;
}

.footer-section h4 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #dc2626;
}

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

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

.footer-section ul li a {
    color: #bdc3c7;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section ul li a:hover {
    color: #dc2626;
}

.footer-section p {
    color: #bdc3c7;
    line-height: 1.6;
}

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

.social-links a {
    display: inline-block;
    width: 40px;
    height: 40px;
    background: rgba(220, 38, 38, 0.2);
    color: white;
    text-align: center;
    line-height: 40px;
    border-radius: 50%;
    transition: all 0.3s ease;
}

.social-links a:hover {
    background: #dc2626;
}

/* QR Code Styles */
.qrcode-container {
    display: flex;
    gap: 1.5rem;
    margin-top: 1.5rem;
    justify-content: flex-start;
}

.qrcode-item {
    text-align: center;
    position: relative;
    cursor: pointer;
}

.qrcode-img {
    width: 100px;
    height: 100px;
    border-radius: 8px;
    border: 2px solid rgba(255, 255, 255, 0.1);
    display: block;
    margin-bottom: 0.5rem;
    transition: all 0.3s ease;
}

.qrcode-item:hover .qrcode-img {
    border-color: rgba(220, 38, 38, 0.5);
}

.qrcode-item span {
    display: block;
    font-size: 0.85rem;
    color: #bdc3c7;
    margin-top: 0.5rem;
}

.qrcode-enlarged {
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(-10px);
    background: white;
    padding: 1.5rem;
    border-radius: 12px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 1000;
    pointer-events: none;
}

.qrcode-item:hover .qrcode-enlarged {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(-20px);
}

.qrcode-enlarged img {
    width: 200px;
    height: 200px;
    display: block;
    border-radius: 8px;
    margin-bottom: 1rem;
}

.qrcode-enlarged p {
    font-size: 0.9rem;
    color: #333;
    margin: 0;
    text-align: center;
    font-weight: 500;
}

.qrcode-enlarged::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 0;
    border-left: 8px solid transparent;
    border-right: 8px solid transparent;
    border-top: 8px solid white;
}

.footer-bottom {
    border-top: 1px solid #34495e;
    padding-top: 2rem;
    text-align: center;
    color: #bdc3c7;
}

.footer-bottom a {
    color: #bdc3c7;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-bottom a:hover {
    color: #dc2626;
}

/* Back to Top Button */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #dc2626 0%, #b91c1c 100%);
    color: white;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    font-size: 1.2rem;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 1000;
}

.back-to-top.show {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    box-shadow: 0 8px 25px rgba(220, 38, 38, 0.6);
}

/* 滚动条样式 */
::-webkit-scrollbar {
    width: 8px;
}

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

::-webkit-scrollbar-thumb {
    background: linear-gradient(135deg, #dc2626 0%, #b91c1c 100%);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(135deg, #b91c1c 0%, #991b1b 100%);
}

/* 页面头部样式 */
.page-header {
    padding: 120px 0 80px;
    background: linear-gradient(135deg, #dc2626 0%, #b91c1c 100%);
    color: white;
    text-align: center;
}

.page-header-content h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.page-header-content p {
    font-size: 1.2rem;
    opacity: 0.9;
    margin-bottom: 2rem;
}

.breadcrumb {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
}

.breadcrumb a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: color 0.3s ease;
}

.breadcrumb a:hover {
    color: white;
}

.breadcrumb span {
    color: rgba(255, 255, 255, 0.6);
}

/* Logo链接样式 */
.nav-logo {
    display: flex;
    align-items: center;
}

.logo-link {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 24px;
    font-weight: 700;
    color: #dc2626;
    text-decoration: none;
}

.logo-link:hover {
    color: #dc2626;
    text-decoration: none;
}

/* 导航链接激活状态 */
.nav-link.active {
    color: #dc2626;
}

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

/* 额外信息部分 */
.additional-info {
    padding: 80px 0;
    background: white;
}

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

.info-card {
    background: #f8f9fa;
    padding: 2rem;
    border-radius: 12px;
    border-left: 4px solid #dc2626;
}

.info-card h3 {
    font-size: 1.3rem;
    font-weight: 600;
    color: #333;
    margin-bottom: 1rem;
}

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

/* CTA部分 */
.cta-section {
    padding: 80px 0;
    background: linear-gradient(135deg, #dc2626 0%, #b91c1c 100%);
    color: white;
    text-align: center;
}

.cta-content h2 {
    font-size: 2.2rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.cta-content p {
    font-size: 1.1rem;
    opacity: 0.9;
    margin-bottom: 2rem;
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.cta-buttons .btn-secondary {
    background: transparent;
    color: white;
    border: 2px solid white;
}

.cta-buttons .btn-secondary:hover {
    background: white;
    color: #dc2626;
}

/* 模块详情标签页样式 */
.module-details {
    padding: 80px 0;
    background: #f8f9fa;
}

.detail-tabs {
    margin: 0 auto;
    width: 70%;
}

.tab-buttons {
    display: flex;
    justify-content: center;
    margin-bottom: 3rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.tab-btn {
    padding: 12px 30px;
    border: none;
    background: white;
    color: #666;
    border-radius: 25px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.tab-btn.active,
.tab-btn:hover {
    background: linear-gradient(135deg, #dc2626 0%, #b91c1c 100%);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 4px 20px rgba(220, 38, 38, 0.3);
}

.tab-content {
    background: white;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    overflow: hidden;
}

.tab-panel {
    display: none;
    padding: 3rem;
}

.tab-panel.active {
    display: block;
}

.tab-content-inner h3 {
    font-size: 2rem;
    font-weight: 700;
    color: #333;
    margin-bottom: 2rem;
    text-align: center;
}

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

.detail-item h4 {
    font-size: 1.3rem;
    font-weight: 600;
    color: #dc2626;
    margin-bottom: 1rem;
}

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

/* 案例特征标签 */
.case-features {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 1.5rem;
}

.case-features .feature-tag {
    background: rgba(220, 38, 38, 0.1);
    color: #dc2626;
    padding: 0.3rem 0.8rem;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 500;
}

/* 统计数据部分 */
.stats-section {
    padding: 80px 0;
    background: white;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
}

.stat-item {
    text-align: center;
    padding: 2rem 1rem;
    background: #f8f9fa;
    border-radius: 12px;
    transition: all 0.3s ease;
}

.stat-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(220, 38, 38, 0.15);
}

.stat-icon {
    font-size: 3rem;
    color: #dc2626;
    margin-bottom: 1rem;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: #333;
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 1rem;
    color: #666;
}

/* 联系表单标题 */
.contact-form h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: #333;
    margin-bottom: 2rem;
    text-align: center;
}

/* 商务风格首页样式 */

/* Hero Badge */
.hero-badge {
    display: inline-block;
    margin-bottom: 1.5rem;
}

.hero-badge span {
    background: linear-gradient(135deg, rgba(217, 119, 6, 0.9) 0%, rgba(180, 83, 9, 0.9) 100%);
    color: white;
    padding: 0.6rem 1.4rem;
    border-radius: 25px;
    font-size: 0.9rem;
    font-weight: 600;
    border: 2px solid rgba(217, 119, 6, 0.8);
    backdrop-filter: blur(10px);
    box-shadow: 0 4px 15px rgba(217, 119, 6, 0.3);
}

/* Hero Features Highlight */
.hero-features-highlight {
    display: flex;
    gap: 2rem;
    justify-content: center;
    margin: 2rem 0 3rem;
    flex-wrap: wrap;
}

.feature-highlight {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    background: rgba(255, 255, 255, 0.2);
    padding: 1rem 1.5rem;
    border-radius: 30px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    transition: all 0.3s ease;
    font-weight: 600;
}

.feature-highlight:hover {
    background: rgba(255, 255, 255, 0.3);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
}

.feature-highlight i {
    font-size: 1.2rem;
    color: rgba(255, 255, 255, 0.9);
}

.feature-highlight span {
    font-size: 1rem;
    color: white;
}

/* Hero Advantages */
.hero-advantages {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin: 3rem 0;
    width: 100%;
    padding: 0 2rem;
    box-sizing: border-box;
}

.advantage-item {
    display: flex;
    align-items: flex-start;
    gap: 1.5rem;
    background: rgba(255, 255, 255, 0.1);
    padding: 2rem;
    border-radius: 20px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: all 0.3s ease;
}

.advantage-item:hover {
    background: rgba(255, 255, 255, 0.15);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.2);
}

.advantage-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, rgba(217, 119, 6, 0.8) 0%, rgba(180, 83, 9, 0.8) 100%);
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.advantage-icon i {
    font-size: 1.5rem;
    color: white;
}

.advantage-content h4 {
    font-size: 1.3rem;
    font-weight: 700;
    color: white;
    margin-bottom: 0.8rem;
    line-height: 1.3;
}

.advantage-content p {
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.85);
    line-height: 1.6;
    margin: 0;
}

/* Hero Customization */
.hero-customization {
    margin: 3rem 0;
    text-align: center;
}

.hero-customization h3 {
    font-size: 1.8rem;
    font-weight: 700;
    color: white;
    margin-bottom: 2rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.customization-points {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.point-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    background: rgba(255, 255, 255, 0.1);
    padding: 1.2rem 1.5rem;
    border-radius: 15px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: all 0.3s ease;
}

.point-item:hover {
    background: rgba(255, 255, 255, 0.15);
}

.point-item i {
    font-size: 1.2rem;
    color: #d97706;
    flex-shrink: 0;
}

.point-item span {
    color: white;
    font-weight: 500;
    font-size: 1rem;
}

/* Button Outline White */
.btn-outline-white {
    background: transparent;
    color: white;
    border: 2px solid white;
    padding: 12px 30px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-outline-white:hover {
    background: white;
    color: #dc2626;
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
}

/* Hero Stats */
.hero-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 2rem;
    margin: 3rem 0;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.hero-stats .stat-item {
    text-align: center;
    background: rgba(255, 255, 255, 0.15);
    padding: 2rem 1.5rem;
    border-radius: 15px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
    transition: all 0.3s ease;
}

.hero-stats .stat-item:hover {
    background: rgba(255, 255, 255, 0.2);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
}

.hero-stats .stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: white;
    display: block;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
    margin-bottom: 0.5rem;
}

.hero-stats .stat-label {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.95);
    margin-top: 0.5rem;
    font-weight: 500;
}

/* Solution Overview */
.solution-overview {
    padding: 120px 0;
    background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
    position: relative;
    overflow: hidden;
}

.solution-overview::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 200px;
    background: linear-gradient(135deg, rgba(220, 38, 38, 0.03) 0%, rgba(217, 119, 6, 0.03) 100%);
    z-index: 1;
}

.solution-overview .container {
    position: relative;
    z-index: 2;
    max-width: 1600px;
}

/* 为解决方案部分添加特殊标题样式 */
.solution-overview .section-header h2 {
    background: linear-gradient(135deg, #dc2626 0%, #b91c1c 50%, #d97706 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-size: 2.8rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    margin-bottom: 1rem;
}

.solution-overview .section-header p {
    font-size: 1.2rem;
    color: #64748b;
    font-weight: 500;
    max-width: 700px;
}

.solution-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2.5rem;
    margin-top: 4rem;
    align-items: stretch;
}

.solution-item {
    background: linear-gradient(135deg, #fefefe 0%, #f8fafc 100%);
    padding: 0;
    border-radius: 20px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08), 0 4px 20px rgba(0, 0, 0, 0.04);
    position: relative;
    overflow: hidden;
    border: 1px solid rgba(220, 38, 38, 0.08);
    display: flex;
    flex-direction: column;
    height: 100%;
}

.solution-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #dc2626 0%, #f59e0b 50%, #dc2626 100%);
    background-size: 200% 100%;
    animation: shimmer 3s ease-in-out infinite;
}

@keyframes shimmer {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}

.solution-image {
    width: 100%;
    height: 160px;
    background: linear-gradient(135deg, #dc2626 0%, #f59e0b 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    flex-shrink: 0;
}

.solution-image::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, rgba(255, 255, 255, 0.1) 0%, rgba(255, 255, 255, 0.05) 100%);
}

.image-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: white;
    text-align: center;
    z-index: 2;
    position: relative;
}

.image-placeholder i {
    font-size: 3rem;
    margin-bottom: 0.8rem;
    opacity: 0.9;
}

.image-placeholder span {
    font-size: 1.1rem;
    font-weight: 600;
    opacity: 0.95;
}

.solution-content {
    padding: 2.5rem;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.solution-content h3 {
    font-size: 1.6rem;
    font-weight: 700;
    color: #000000;
    margin-bottom: 1rem;
    position: relative;
    padding-left: 1rem;
}

.solution-content h3::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 4px;
    height: 24px;
    background: linear-gradient(135deg, #dc2626 0%, #f59e0b 100%);
    border-radius: 2px;
}

.solution-content p {
    color: #64748b;
    line-height: 1.7;
    margin-bottom: 1.8rem;
    font-size: 1.05rem;
}

.solution-features {
    list-style: none;
    padding: 0;
    margin-bottom: 0;
    flex: 1;
}

.solution-features li {
    padding: 0.7rem 0;
    color: #475569;
    position: relative;
    padding-left: 2rem;
    line-height: 1.6;
    font-weight: 500;
    transition: color 0.3s ease;
}

.solution-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    top: 0.7rem;
    width: 16px;
    height: 16px;
    background: linear-gradient(135deg, #dc2626 0%, #f59e0b 100%);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.7rem;
    font-weight: bold;
}

/* Solution Link Button */
.solution-link-text {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.6rem;
    margin: 0 2.5rem 2.5rem 2.5rem;
    padding: 1rem 1.5rem;
    background: linear-gradient(135deg, rgba(220, 38, 38, 0.08) 0%, rgba(245, 158, 11, 0.08) 100%);
    border-radius: 12px;
    color: #dc2626;
    font-weight: 600;
    font-size: 0.95rem;
    text-decoration: none;
    border: 1px solid rgba(220, 38, 38, 0.1);
    flex-shrink: 0;
}

.solution-link-text i {
    font-size: 0.9rem;
}

/* Modules Preview */
.modules-preview {
    padding: 120px 0;
    background: linear-gradient(135deg, #f8fafc 0%, #ffffff 100%);
    position: relative;
    overflow: hidden;
}

.modules-preview::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 200px;
    background: linear-gradient(135deg, rgba(220, 38, 38, 0.02) 0%, rgba(217, 119, 6, 0.02) 100%);
    z-index: 1;
}

.modules-preview .container {
    position: relative;
    z-index: 2;
    max-width: 1600px;
}

.modules-preview .section-header h2 {
    background: linear-gradient(135deg, #dc2626 0%, #b91c1c 50%, #d97706 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-size: 2.8rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    margin-bottom: 1rem;
}

.modules-preview .section-header p {
    font-size: 1.2rem;
    color: #64748b;
    font-weight: 500;
    max-width: 700px;
}

.modules-preview-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2.5rem;
    margin-top: 4rem;
    align-items: stretch;
}

.module-preview-card {
    background: linear-gradient(135deg, #fefefe 0%, #f8fafc 100%);
    border-radius: 20px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08), 0 4px 20px rgba(0, 0, 0, 0.04);
    position: relative;
    overflow: hidden;
    border: 1px solid rgba(220, 38, 38, 0.08);
    display: flex;
    flex-direction: column;
    height: 100%;
}

.module-preview-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #dc2626 0%, #f59e0b 50%, #dc2626 100%);
    background-size: 200% 100%;
    animation: shimmer 3s ease-in-out infinite;
}

.module-preview-card:hover::after {
    opacity: 1;
}

.module-preview-card .module-header,
.module-preview-card .module-content {
    position: relative;
    z-index: 2;
}

.module-header {
    padding: 2.5rem 2.5rem 1.5rem 2.5rem;
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.module-header h3 {
    font-size: 1.6rem;
    font-weight: 700;
    color: #000000;
    margin: 0;
    flex: 1;
    line-height: 1.3;
}

.module-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #dc2626 0%, #f59e0b 100%);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    position: relative;
    overflow: hidden;
}

.module-icon::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, rgba(255, 255, 255, 0.1) 0%, rgba(255, 255, 255, 0.05) 100%);
}

.module-icon i {
    font-size: 2.5rem;
    color: white;
    z-index: 2;
    position: relative;
}

.module-content {
    padding: 0 2.5rem 2.5rem 2.5rem;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.module-content p {
    color: #64748b;
    line-height: 1.7;
    margin-bottom: 2rem;
    font-size: 1.05rem;
    flex: 1;
}

.module-link {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.6rem;
    margin-top: auto;
    padding: 1rem 1.5rem;
    background: linear-gradient(135deg, rgba(220, 38, 38, 0.08) 0%, rgba(245, 158, 11, 0.08) 100%);
    border-radius: 12px;
    color: #dc2626;
    font-weight: 600;
    font-size: 0.95rem;
    text-decoration: none;
    border: 1px solid rgba(220, 38, 38, 0.1);
    flex-shrink: 0;
}

.module-link i {
    font-size: 0.9rem;
}

/* SEO Content Section */
.seo-content {
    padding: 100px 0;
    background: #f8f9fa;
}

.seo-content .container {
    max-width: 1600px;
}

.why-choose .seo-grid {
    margin-top: 4rem;
}

.seo-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 3rem;
}

.seo-item {
    background: linear-gradient(135deg, #fefefe 0%, #f8fafc 100%);
    padding: 2.5rem;
    border-radius: 15px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    border-left: 4px solid #dc2626;
}

.seo-item h3 {
    font-size: 1.4rem;
    font-weight: 700;
    color: #000000;
    margin-bottom: 1.5rem;
    position: relative;
    padding-left: 1rem;
}

.seo-item h3::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 4px;
    height: 24px;
    background: linear-gradient(135deg, #dc2626 0%, #f59e0b 100%);
    border-radius: 2px;
}

.seo-item p {
    color: #64748b;
    line-height: 1.7;
    margin-bottom: 1.5rem;
    font-size: 1rem;
}

.seo-item ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.seo-item li {
    padding: 0.5rem 0;
    color: #475569;
    position: relative;
    padding-left: 1.5rem;
    line-height: 1.6;
    font-weight: 500;
}

.seo-item li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: #dc2626;
    font-weight: bold;
    font-size: 1.2rem;
}

/* Cases Preview */
.cases-preview {
    padding: 100px 0;
    background: #f8f9fa;
}

.cases-preview .container {
    max-width: 1600px;
}

.cases-preview-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(380px, 1fr));
    gap: 3rem;
    margin-top: 4rem;
}

.case-preview-card {
    background: linear-gradient(135deg, #ffffff 0%, #fafbfc 100%);
    border-radius: 24px;
    overflow: hidden;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    flex-direction: column;
    position: relative;
    border: 1px solid rgba(220, 38, 38, 0.08);
}

.case-preview-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 5px;
    background: linear-gradient(90deg, #dc2626 0%, #d97706 50%, #dc2626 100%);
    background-size: 200% 100%;
    animation: shimmer 3s ease-in-out infinite;
}

@keyframes shimmer {
    0%, 100% { background-position: -200% 0; }
    50% { background-position: 200% 0; }
}

.case-preview-card:hover {
    box-shadow: 0 20px 60px rgba(220, 38, 38, 0.2);
    border-color: rgba(220, 38, 38, 0.2);
}

.case-image {
    position: relative;
    width: 100%;
    height: 240px;
    overflow: hidden;
    background: linear-gradient(135deg, #f3f4f6 0%, #e5e7eb 100%);
}

.case-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: all 0.4s ease;
}


.case-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(220, 38, 38, 0.85) 0%, rgba(217, 119, 6, 0.85) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: all 0.4s ease;
    backdrop-filter: blur(8px);
}

.case-overlay::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 80px;
    height: 80px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: white;
    animation: spin 2s linear infinite;
    opacity: 0;
    transition: all 0.3s ease;
}

@keyframes spin {
    to { transform: translate(-50%, -50%) rotate(360deg); }
}

.case-overlay i {
    font-size: 2.5rem;
    color: white;
    z-index: 2;
    position: relative;
}

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

.case-preview-card:hover .case-overlay {
    opacity: 0.3;
}

.case-preview-card:hover .case-overlay::before {
    opacity: 0.5;
}

.case-info {
    padding: 2.5rem;
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    position: relative;
}

.case-info h3 {
    font-size: 1.3rem;
    font-weight: 600;
    color: #333;
    margin-bottom: 1rem;
}

.case-metrics {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.metric {
    background: rgba(220, 38, 38, 0.1);
    color: #dc2626;
    padding: 0.3rem 0.8rem;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 500;
}

.case-info p {
    color: #666;
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.case-link {
    color: #dc2626;
    text-decoration: none;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.3s ease;
    margin-top: auto;
    padding: 0.8rem 1.5rem;
    border-radius: 8px;
}

.case-link:hover {
    color: white;
    background: #dc2626;
}

.cases-cta {
    text-align: center;
    margin-top: 3rem;
}

.btn-outline {
    background: transparent;
    color: #dc2626;
    border: 2px solid #dc2626;
    padding: 12px 30px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
}

.btn-outline:hover {
    background: #dc2626;
    color: white;
}

/* Why Choose Us */
.why-choose {
    padding: 100px 0;
    background: white;
}

.why-choose .container {
    max-width: 1600px;
}

.choose-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 4rem;
    align-items: center;
}

.choose-text h2 {
    font-size: 2.5rem;
    font-weight: 700;
    color: #333;
    margin-bottom: 1.5rem;
}

.choose-text p {
    font-size: 1.1rem;
    color: #666;
    line-height: 1.7;
    margin-bottom: 3rem;
}

.choose-features {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.choose-feature {
    display: flex;
    align-items: flex-start;
    gap: 1.5rem;
}

.feature-number {
    background: linear-gradient(135deg, #d97706 0%, #b45309 100%);
    color: white;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.1rem;
    flex-shrink: 0;
    box-shadow: 0 4px 15px rgba(217, 119, 6, 0.4);
}

.feature-content h4 {
    font-size: 1.2rem;
    font-weight: 600;
    color: #333;
    margin-bottom: 0.5rem;
}

.feature-content p {
    color: #666;
    line-height: 1.6;
    margin: 0;
}

.choose-visual {
    display: flex;
    justify-content: center;
}

.visual-stats {
    display: flex;
    flex-direction: column;
    gap: 3rem;
}

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

.stat-circle {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    background: linear-gradient(135deg, #dc2626 0%, #b91c1c 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 700;
    font-size: 1.5rem;
    margin-bottom: 1rem;
    box-shadow: 0 8px 25px rgba(220, 38, 38, 0.3);
}

.stat-text {
    color: #666;
    font-weight: 500;
}

/* 中等屏幕调整 */
@media (max-width: 1024px) {
    .hero-content {
        width: 85%;
    }
    
    .hero-advantages {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }
}

/* 响应式调整 */
@media (max-width: 768px) {
    .hero-content {
        width: 90%;
    }
    
    /* Hero Features Highlight */
    .hero-features-highlight {
        gap: 1rem;
        margin: 1.5rem 0 2rem;
    }
    
    .feature-highlight {
        padding: 0.8rem 1rem;
        font-size: 0.9rem;
    }
    
    .feature-highlight i {
        font-size: 1rem;
    }
    
    /* Hero Advantages */
    .hero-advantages {
        grid-template-columns: 1fr;
        gap: 1.5rem;
        margin: 2rem 0;
    }
    
    .advantage-item {
        padding: 1.5rem;
        gap: 1rem;
    }
    
    .advantage-icon {
        width: 50px;
        height: 50px;
    }
    
    .advantage-icon i {
        font-size: 1.2rem;
    }
    
    .advantage-content h4 {
        font-size: 1.1rem;
    }
    
    .advantage-content p {
        font-size: 0.9rem;
    }
    
    /* Hero Customization */
    .hero-customization h3 {
        font-size: 1.4rem;
        margin-bottom: 1.5rem;
    }
    
    .customization-points {
        grid-template-columns: 1fr;
        gap: 1rem;
        margin-bottom: 1.5rem;
    }
    
    .point-item {
        padding: 1rem 1.2rem;
        gap: 0.8rem;
    }
    
    .point-item span {
        font-size: 0.9rem;
    }
    
    /* Hero Stats */
    .hero-stats {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }
    
    .hero-stats .stat-item {
        padding: 1.5rem 1rem;
    }
    
    .hero-stats .stat-number {
        font-size: 2rem;
    }
    
    /* Hero Buttons */
    .hero-buttons {
        flex-direction: column;
        align-items: center;
        gap: 1rem;
    }
    
    .btn-outline-white {
        width: 100%;
        max-width: 300px;
        justify-content: center;
    }
    
    .solution-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .choose-content {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .choose-visual {
        order: -1;
    }
    
    .visual-stats {
        flex-direction: row;
        gap: 2rem;
    }
}

/* Product Pages Styles */
.product-intro {
    padding: 80px 0;
    background: linear-gradient(135deg, #fefefe 0%, #f8fafc 100%);
}

.product-intro .container {
    max-width: 1200px;
}

.intro-content {
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
}

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

.intro-content h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(135deg, #dc2626 0%, #f59e0b 100%);
    border-radius: 2px;
}

.intro-content p {
    font-size: 1.15rem;
    line-height: 1.8;
    color: #64748b;
    margin-bottom: 1.5rem;
}

.intro-content p:last-child {
    margin-bottom: 0;
}

/* Product Features Section */
.features-section {
    padding: 100px 0;
    background: white;
}

.features-section .container {
    max-width: 1400px;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2.5rem;
    margin-top: 4rem;
}

.feature-card {
    background: linear-gradient(135deg, #fefefe 0%, #f8fafc 100%);
    padding: 2.5rem;
    border-radius: 20px;
    border: 1px solid rgba(220, 38, 38, 0.08);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.06);
    transition: all 0.3s ease;
    text-align: center;
}

.feature-card:hover {
    box-shadow: 0 15px 50px rgba(220, 38, 38, 0.12);
    border-color: rgba(220, 38, 38, 0.15);
}

.feature-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 1.5rem;
    background: linear-gradient(135deg, rgba(220, 38, 38, 0.1) 0%, rgba(245, 158, 11, 0.1) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.feature-icon::before {
    content: '';
    position: absolute;
    inset: -5px;
    background: linear-gradient(135deg, #dc2626 0%, #f59e0b 100%);
    border-radius: 50%;
    opacity: 0.1;
    z-index: -1;
}

.feature-icon i {
    font-size: 2.5rem;
    background: linear-gradient(135deg, #dc2626 0%, #f59e0b 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.feature-card h3 {
    font-size: 1.4rem;
    font-weight: 700;
    color: #1e293b;
    margin-bottom: 1rem;
}

.feature-card p {
    font-size: 1rem;
    line-height: 1.7;
    color: #64748b;
}

/* Product CTA Section */
.cta-section {
    padding: 100px 0;
    background: linear-gradient(135deg, #dc2626 0%, #b91c1c 100%);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.05);
}

.cta-section .container {
    position: relative;
    z-index: 2;
}

.cta-section h2 {
    font-size: 2.5rem;
    font-weight: 700;
    color: white;
    margin-bottom: 1rem;
}

.cta-section p {
    font-size: 1.2rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 2.5rem;
}

.cta-buttons {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
}

.cta-buttons .btn-primary {
    background: white;
    color: #dc2626;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
}

.cta-buttons .btn-primary:hover {
    background: #f8f9fa;
    box-shadow: 0 12px 35px rgba(0, 0, 0, 0.3);
}

.cta-buttons .btn-secondary {
    background: transparent;
    color: white;
    border: 2px solid white;
}

.cta-buttons .btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: white;
}

/* Solution Pages Styles */
.solution-hero {
    padding: 80px 0;
    background: linear-gradient(135deg, #fefefe 0%, #f8fafc 100%);
}

.solution-hero .container {
    max-width: 1400px;
}

.solution-hero-content {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 4rem;
    align-items: center;
}

.hero-text h2 {
    font-size: 2.5rem;
    font-weight: 700;
    color: #1e293b;
    margin-bottom: 1.5rem;
}

.hero-text p {
    font-size: 1.15rem;
    line-height: 1.8;
    color: #64748b;
    margin-bottom: 2rem;
}

.hero-stats {
    display: flex;
    gap: 2rem;
}

.hero-stats .stat {
    text-align: center;
}

.hero-stats .stat-number {
    font-size: 2rem;
    font-weight: 700;
    color: #dc2626;
    display: block;
    margin-bottom: 0.5rem;
}

.hero-stats .stat-label {
    font-size: 0.9rem;
    color: #94a3b8;
}

/* Solution Hero Features */
.hero-features {
    display: flex;
    gap: 2rem;
    margin-top: 2rem;
    flex-wrap: wrap;
}

.hero-features .feature-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 1.5rem;
    background: rgba(220, 38, 38, 0.1);
    border-radius: 12px;
    border: 1px solid rgba(220, 38, 38, 0.2);
    transition: all 0.3s ease;
}

.hero-features .feature-item:hover {
    background: rgba(220, 38, 38, 0.15);
    border-color: rgba(220, 38, 38, 0.3);
}

.hero-features .feature-item i {
    font-size: 1.25rem;
    color: #dc2626;
}

.hero-features .feature-item span {
    font-size: 1rem;
    font-weight: 600;
    color: #374151;
}

.solution-showcase {
    background: linear-gradient(135deg, rgba(220, 38, 38, 0.1) 0%, rgba(245, 158, 11, 0.1) 100%);
    border-radius: 20px;
    padding: 3rem;
    text-align: center;
    border: 2px solid rgba(220, 38, 38, 0.1);
}

.solution-showcase i {
    font-size: 5rem;
    background: linear-gradient(135deg, #dc2626 0%, #f59e0b 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: block;
    margin-bottom: 1.5rem;
}

.solution-showcase span {
    font-size: 1.5rem;
    font-weight: 600;
    color: #1e293b;
}

/* Key Features Section */
.key-features {
    padding: 100px 0;
    background: white;
}

.key-features .container {
    max-width: 1400px;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2.5rem;
    margin-top: 4rem;
}

.feature-list {
    list-style: none;
    padding: 0;
    margin-top: 1.5rem;
}

.feature-list li {
    padding: 0.5rem 0;
    color: #64748b;
    font-size: 0.95rem;
    position: relative;
    padding-left: 1.5rem;
}

.feature-list li::before {
    content: '';
    position: absolute;
    left: 0;
    color: #dc2626;
    font-weight: 700;
}

/* Application Scenarios Section */
.application-scenarios {
    padding: 100px 0;
    background: linear-gradient(135deg, #fefefe 0%, #f8fafc 100%);
}

.application-scenarios .container {
    max-width: 1400px;
}

.scenarios-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2.5rem;
    margin-top: 4rem;
}

.scenario-item {
    background: white;
    padding: 2.5rem;
    border-radius: 20px;
    border: 1px solid rgba(220, 38, 38, 0.08);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.06);
    transition: all 0.3s ease;
}

.scenario-item:hover {
    box-shadow: 0 15px 50px rgba(220, 38, 38, 0.12);
    border-color: rgba(220, 38, 38, 0.15);
}

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

.scenario-header i {
    font-size: 2rem;
    color: #dc2626;
}

.scenario-header h3 {
    font-size: 1.4rem;
    font-weight: 700;
    color: #1e293b;
    margin: 0;
}

.scenario-item p {
    color: #64748b;
    line-height: 1.7;
    margin-bottom: 1.5rem;
}

.scenario-features {
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem;
}

.scenario-features .tag {
    background: linear-gradient(135deg, rgba(220, 38, 38, 0.08) 0%, rgba(245, 158, 11, 0.08) 100%);
    color: #dc2626;
    padding: 0.4rem 1rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
}

/* Success Cases Section */
.success-cases {
    padding: 100px 0;
    background: white;
}

.success-cases .container {
    max-width: 1400px;
}

.cases-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2.5rem;
    margin-top: 4rem;
}

.case-item {
    background: linear-gradient(135deg, #fefefe 0%, #f8fafc 100%);
    padding: 2.5rem;
    border-radius: 20px;
    border: 1px solid rgba(220, 38, 38, 0.08);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.06);
}

.case-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    padding-bottom: 1.5rem;
    border-bottom: 2px solid rgba(220, 38, 38, 0.1);
}

.case-header h3 {
    font-size: 1.4rem;
    font-weight: 700;
    color: #1e293b;
    margin: 0;
}

.case-type {
    background: linear-gradient(135deg, #dc2626 0%, #f59e0b 100%);
    color: white;
    padding: 0.4rem 1rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
}

.case-stats {
    display: flex;
    gap: 2rem;
    margin-bottom: 1.5rem;
    padding: 1.5rem;
    background: linear-gradient(135deg, rgba(220, 38, 38, 0.05) 0%, rgba(245, 158, 11, 0.05) 100%);
    border-radius: 12px;
}

.case-stats .stat {
    text-align: center;
    flex: 1;
}

.case-stats .number {
    font-size: 1.8rem;
    font-weight: 700;
    color: #dc2626;
    display: block;
    margin-bottom: 0.3rem;
}

.case-stats .label {
    font-size: 0.85rem;
    color: #64748b;
}

.case-item p {
    color: #64748b;
    line-height: 1.7;
}