* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

li {
    list-style: none;
}

body {
    font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    overflow-x: hidden;
}

header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 2rem 0;
    text-align: center;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

.logo {
    font-size: 1.8rem;
    font-weight: bold;
    animation: fadeInDown 1s ease;
}

.logo img {
    height: 3rem;
    width: auto;
}

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

.nav-links li {
    margin-left: 2rem;
    animation: fadeInDown 1s ease;
    animation-delay: 0.2s;
    animation-fill-mode: both;
}

.nav-links a {
    color: white;
    text-decoration: none;
    font-weight: 500;
    transition: opacity 0.3s;
}

.nav-links a:hover {
    opacity: 0.8;
}

.hero {
    text-align: center;
    padding: 4rem 0;
    animation: fadeIn 1.5s ease;
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    animation: slideInUp 1s ease;
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    animation: slideInUp 1s ease 0.2s;
    animation-fill-mode: both;
} 

.btn {
    display: inline-block;
    background: #fff;
    color: #667eea;
    padding: 12px 30px;
    border-radius: 30px;
    text-decoration: none;
    font-weight: bold;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
    animation: slideInUp 1s ease 0.4s;
    animation-fill-mode: both;
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

section {
    padding: 5rem 0;
}

.section-title {
    text-align: center;
    margin-bottom: 3rem;
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.section-title.visible {
    opacity: 1;
    transform: translateY(0);
}

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

.section-title p {
    color: #666;
    max-width: 700px;
    margin: 0 auto;
}

.architecture {
    background: #f8f9fa;
}

.architecture-diagram {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    margin-top: 2rem;
}

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

.arch-layer {
    flex: 1;
    min-width: 200px;
    text-align: center;
    padding: 2rem;
    background: white;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    margin: 10px;
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

.arch-layer.visible {
    opacity: 1;
    transform: translateY(0);
}

.arch-layer:nth-child(1) {
    transition-delay: 0.1s;
}

.arch-layer:nth-child(2) {
    transition-delay: 0.2s;
}

.arch-layer:nth-child(3) {
    transition-delay: 0.3s;
}

.arch-layer:nth-child(4) {
    transition-delay: 0.4s;
}

.arch-layer h3 {
    color: #667eea;
    margin-bottom: 1rem;
}

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

.feature-card {
    background: white;
    border-radius: 10px;
    padding: 2rem;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
    opacity: 0;
    transform: translateY(30px);
}

.feature-card.visible {
    opacity: 1;
    transform: translateY(0);
}

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

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: #667eea;
}

.pricing-cards {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 2rem;
}

.pricing-card {
    flex: 1;
    min-width: 250px;
    max-width: 350px;
    background: white;
    border-radius: 10px;
    padding: 2rem;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    text-align: center;
    border: 2px solid #eee;
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

.pricing-card.visible {
    opacity: 1;
    transform: translateY(0);
}

.pricing-card:nth-child(1) {
    transition-delay: 0.1s;
}

.pricing-card:nth-child(2) {
    transition-delay: 0.2s;
}

.pricing-card:nth-child(3) {
    transition-delay: 0.3s;
}

.pricing-card.popular {
    border-color: #667eea;
    position: relative;
    transform: scale(1.05);
}

.popular-tag {
    position: absolute;
    right: 20px;
    background: #667eea;
    color: white;
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 0.9rem;
}

.price {
    font-size: 3rem;
    font-weight: bold;
    color: #333;
    margin: 1rem 0;
}

.price span {
    font-size: 1rem;
    color: #666;
}

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

.case-card {
    background: white;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

.case-card.visible {
    opacity: 1;
    transform: translateY(0);
}

.case-card:nth-child(1) {
    transition-delay: 0.1s;
}

.case-card:nth-child(2) {
    transition-delay: 0.2s;
}

.case-card:nth-child(3) {
    transition-delay: 0.3s;
}

.case-image {
    height: 200px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
    font-weight: bold;
}

.case-content {
    padding: 1.5rem;
}

footer {
    background: #333;
    color: white;
    padding: 3rem 0;
    text-align: center;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    margin-bottom: 2rem;
}

.footer-section {
    flex: 1;
    min-width: 200px;
    margin-bottom: 1rem;
}

.footer-section h3 {
    margin-bottom: 1rem;
}

.footer-links {
    list-style: none;
}

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

.footer-links a {
    color: #ccc;
    text-decoration: none;
}

.footer-links a:hover {
    color: white;
}

.copyright {
    border-top: 1px solid #555;
    padding-top: 1rem;
    color: #aaa;
}

.copyright a {
    color: #aaa;
    text-decoration: none;
}

/* Modal Styles */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    z-index: 1000;
    justify-content: center;
    align-items: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.modal.active {
    display: flex;
    opacity: 1;
}

.modal-content {
    background: white;
    border-radius: 10px;
    width: 90%;
    max-width: 600px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
    transform: translateY(-50px);
    transition: transform 0.4s ease;
    position: relative;
}

.modal.active .modal-content {
    transform: translateY(0);
}

.modal-header {
    padding: 1.5rem;
    border-bottom: 1px solid #eee;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h2 {
    margin: 0;
    color: #333;
}

.close-modal {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: #999;
    transition: color 0.3s;
}

.close-modal:hover {
    color: #333;
}

.modal-body {
    padding: 1.5rem;
}

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

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-family: inherit;
    transition: border 0.3s;
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: #667eea;
    outline: none;
}

.form-group textarea {
    height: 150px;
}

.submit-btn {
    width: 100%;
    background: #667eea;
    color: white;
    padding: 12px;
    border: none;
    border-radius: 5px;
    font-weight: bold;
    cursor: pointer;
    transition: background 0.3s;
}

.submit-btn:hover {
    background: #5a6fd8;
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

    .hero h1 {
        font-size: 2rem;
    }

    .architecture-diagram {
        flex-direction: column;
    }

    .section-title h2 {
        font-size: 2rem;
    }
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 导航链接悬停效果 */
.nav-links a {
    color: white;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
}

.nav-links a::after {
    content: "";
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -5px;
    left: 50%;
    background-color: white;
    transition: all 0.3s ease;
    transform: translateX(-50%);
}

.nav-links a:hover {
    opacity: 1;
    transform: translateY(-3px);
}

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

/* 功能卡片悬停效果（增强现有样式） */
.feature-card {
    background: white;
    border-radius: 10px;
    padding: 2rem;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: all 0.4s ease;
    opacity: 0;
    transform: translateY(30px);
    position: relative;
    overflow: hidden;
    text-align: center;
}

.feature-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
            135deg,
            rgba(102, 126, 234, 0.1) 0%,
            rgba(118, 75, 162, 0.1) 100%
    );
    opacity: 0;
    transition: opacity 0.4s ease;
    z-index: -1;
}

.feature-card:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
}

.feature-card:hover::before {
    opacity: 1;
}

.feature-card:hover .feature-icon {
    transform: scale(1.2) rotate(10deg);
}

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: #667eea;
    transition: transform 0.4s ease;
}

/* 定价卡片悬停效果 */
.pricing-card {
    flex: 1;
    min-width: 250px;
    max-width: 350px;
    background: white;
    border-radius: 10px;
    padding: 2rem;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    text-align: center;
    border: 2px solid #eee;
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
}

.pricing-card:not(.popular):hover {
    transform: translateY(-15px);
    box-shadow: 0 20px 30px rgba(0, 0, 0, 0.1);
}

.pricing-card.popular:hover {
    transform: scale(1.08);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

/* 客户案例卡片悬停效果 */
.case-card {
    background: white;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.4s ease;
    position: relative;
}

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

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

.case-image {
    height: 200px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
    font-weight: bold;
    transition: transform 0.4s ease;
}

/* 页脚链接悬停效果 */
.footer-links a {
    color: #ccc;
    text-decoration: none;
    transition: all 0.3s ease;
    position: relative;
}

.footer-links a::before {
    content: "→";
    position: absolute;
    left: -15px;
    opacity: 0;
    transition: all 0.3s ease;
}

.footer-links a:hover {
    color: white;
    padding-left: 20px;
}

.footer-links a:hover::before {
    opacity: 1;
    left: 0;
}

/* 按钮悬停增强效果 */
.btn {
    display: inline-block;
    background: #fff;
    color: #667eea;
    padding: 12px 30px;
    border-radius: 30px;
    text-decoration: none;
    font-weight: bold;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
    animation: slideInUp 1s ease 0.4s;
    animation-fill-mode: both;
    position: relative;
    overflow: hidden;
}

.btn::after {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.1);
    transform: translateX(-100%);
    transition: transform 0.3s ease;
}

.btn:hover {
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.btn:hover::after {
    transform: translateX(0);
}

/* 在现有CSS中添加以下样式 */

.logo-wall {
    /*  background: #f8f9fa; 
    padding: 3rem 0;*/
    border-radius: 10px;
}

.logo-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 2rem;
    align-items: center;
    justify-content: center;
}

.logo-item {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100px;
    background: white;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    padding: 1rem;
    transition: all 0.3s ease;
}

.logo-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.logo-item img {
    max-width: 100%;
    max-height: 60px;
    width: auto;
    height: auto;
    object-fit: contain;
    transition: filter 0.3s ease;
}

.logo-item:hover img {
    filter: grayscale(0%);
}

@media (max-width: 768px) {
    .logo-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }

    .logo-item {
        height: 80px;
    }

    .logo-item img {
        max-height: 40px;
    }
}

.ranking-note {
    text-align: center;
    color: #666;
    font-size: 0.9rem;
    margin-top: 1rem;
    font-style: italic;
}