/* 基础样式和变量 */
:root {
    --primary-color: #515BF5;
    --primary-light: #AB7CFF;
    --secondary-color: #7A69FA;
    --text-color: #333;
    --light-text: #666;
    --white: #fff;
    --light-bg: #f8f9fa;
    --light-purple: #f5f5ff;
    --border-radius: 8px;
    --box-shadow: 0 4px 12px rgba(81, 91, 245, 0.1);
    --transition: all 0.3s ease;
}

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

body {
    font-family: 'PingFang SC', 'Microsoft YaHei', sans-serif;
    color: var(--text-color);
    line-height: 1.6;
    overflow-x: hidden;
}

/* 滚动效果 */
html {
    scroll-behavior: smooth;
}

section {
    padding: 80px 0;
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
}

/* 导航栏和英雄区域的特殊渐变背景 */
header, .hero {
    background: radial-gradient(circle at center, rgba(171, 124, 255, 0.9) 0%, #515BF5 70%);
    position: relative;
    overflow: hidden;
}

/* 添加额外的光晕效果 */
header::before, .hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(180deg,
                rgba(81, 91, 245, 0.8) 0%,
                rgba(171, 124, 255, 0.4) 50%,
                rgba(81, 91, 245, 0.8) 100%);
    pointer-events: none;
    z-index: -1;
}

/* 为英雄区域添加网格背景增强效果 */
.hero::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.05) 1px, transparent 1px);
    background-size: 20px 20px;
    pointer-events: none;
    z-index: -1;
}

/* 确保内容在渐变上方可见 */
.hero-content, nav {
    position: relative;
    z-index: 1;
}

.header-compact {
    padding: 10px 0 !important;
}

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

.logo img {
    height: 40px;
}

.nav-links {
    display: flex;
    gap: 30px;
}

.nav-links a {
    color: var(--white);
    text-decoration: none;
    font-weight: 500;
    letter-spacing: 1px;
    font-size: 0.9rem;
    transition: var(--transition);
}

.nav-links a:hover, .nav-links a.active {
    color: rgba(255, 255, 255, 0.8);
}

/* 英雄区域 */
.hero {
    color: var(--white);
    text-align: center;
    padding: 100px 20px 180px;
    min-height: 60vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-content {
    max-width: 800px;
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 10px;
}

.hero h2 {
    font-size: 2.5rem;
    margin-bottom: 20px;
    font-weight: 500;
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 30px;
    opacity: 0.9;
}

/* 按钮样式 */
.btn-primary {
    background: linear-gradient(180deg, #AB7CFF, #515BF5);
    color: var(--white);
    border: none;
    padding: 12px 30px;
    border-radius: 30px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: 0 4px 15px rgba(81, 91, 245, 0.3);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(81, 91, 245, 0.4);
}

.btn-outline {
    background: transparent;
    color: #515BF5;
    border: 2px solid #515BF5;
    padding: 10px 28px;
    border-radius: 30px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.btn-outline:hover {
    background: rgba(81, 91, 245, 0.1);
}

.btn-secondary {
    background: #7A69FA;
    color: var(--white);
    border: none;
    padding: 12px 30px;
    border-radius: 30px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.btn-secondary:hover {
    background: #AB7CFF;
}

/* 数据中心标签 */
.data-center-badge {
    display: inline-block;
    background-color: rgba(255, 255, 255, 0.2);
    padding: 8px 16px;
    border-radius: 30px;
    margin-bottom: 30px;
    font-size: 0.9rem;
}

.data-center-badge i {
    margin-right: 8px;
}

/* 特点卡片 */
.features {
    background: transparent;
    padding: 0;
    margin-top: -120px;
    position: relative;
    z-index: 10;
}

.feature-cards {
    display: flex;
    justify-content: space-between;
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.card {
    background: var(--white);
    border-radius: var(--border-radius);
    padding: 30px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    flex: 1;
    text-align: center;
    transition: var(--transition);
}

.card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

.card h3 {
    color: #515BF5;
    font-size: 1.4rem;
    margin-bottom: 15px;
}

.card p {
    color: var(--text-color);
    line-height: 1.6;
}

/* 卡片图标样式 - 使用渐变背景 */
.card-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: #f5f7ff;
    border-radius: 50%;  /* 改为圆形 */
    box-shadow: 0 4px 10px rgba(81, 91, 245, 0.1);
    position: relative;
    overflow: hidden;
}

/* 添加渐变背景 */
.card-icon::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(81, 91, 245, 0.1), rgba(171, 124, 255, 0.1));
    z-index: 0;
}

.card-icon i {
    font-size: 24px;
    color: #515BF5;
    position: relative;
    z-index: 1;
}

/* 卡片悬停效果 */
.card:hover .card-icon {
    background-color: transparent;
    transform: scale(1.05);
}

.card:hover .card-icon::before {
    background: linear-gradient(135deg, #515BF5, #AB7CFF);
}

.card:hover .card-icon i {
    color: white;
}

/* 最佳选择部分 */
.best-choice {
    margin-top: 60px;
    display: flex;
    align-items: center;
    gap: 50px;
    padding: 0 20px;
}

.best-choice-content {
    flex: 1;
}

.section-title {
    font-size: 2.2rem;
    margin-bottom: 30px;
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 60px;
    height: 3px;
    background: #515BF5;
}

.best-choice p {
    margin-bottom: 15px;
    font-size: 1.1rem;
}

.highlight {
    color: #515BF5;
    font-weight: 600;
}

.best-choice-image {
    flex: 1;
    display: flex;
    justify-content: center;
}

.best-choice-image img {
    max-width: 100%;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}

/* 三步开始 */
.get-started {
    text-align: center;
    padding: 80px 20px;
    background: var(--light-bg);
}

.steps {
    display: flex;
    justify-content: space-between;
    gap: 30px;
    margin-top: 50px;
}

.step {
    background: white;
    border-radius: 12px;
    padding: 30px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
    text-align: center;
    transition: var(--transition);
    flex: 1;
    max-width: 300px;
    border: 1px solid #f0f0f0;
}

.step:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(81, 91, 245, 0.15);
}

.step-icon {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    margin: 0 auto 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #515BF5, #AB7CFF);
    box-shadow: 0 6px 15px rgba(81, 91, 245, 0.3);
    position: relative;
    z-index: 1;
}

.step-icon i {
    font-size: 22px;
    color: white;
}

.step h3 {
    margin-bottom: 15px;
    color: #515BF5;
}

/* 为什么选择我们 */
.why-choose-us {
    display: flex;
    align-items: center;
    gap: 50px;
    padding: 80px 20px;
}

.why-choose-content {
    flex: 1;
}

.accordion {
    margin-top: 30px;
}

.accordion-item {
    margin-bottom: 15px;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.accordion-header {
    background: var(--white);
    padding: 15px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    font-weight: 600;
}

.accordion-content {
    background: var(--light-bg);
    padding: 0 20px;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.accordion-item.active .accordion-content {
    padding: 15px 20px;
    max-height: 200px;
}

.why-choose-image {
    flex: 1;
}

.why-choose-image img {
    max-width: 100%;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}

/* 价格方案 */
.pricing {
    text-align: center;
    padding: 80px 20px;
    background: var(--light-bg);
}

.pricing-plans {
    display: flex;
    justify-content: center;
    gap: 30px;
    margin-top: 50px;
}

.pricing-card {
    background: var(--white);
    border-radius: var(--border-radius);
    padding: 40px 30px;
    box-shadow: var(--box-shadow);
    flex: 1;
    max-width: 350px;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.pricing-card:hover {
    transform: scale(1.05);
    border-color: #515BF5;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.pricing-card.featured {
    /* 移除边框样式，使其与其他卡片初始状态一致 */
    /* border: 2px solid #515BF5; */
    /* 移除默认的放大效果 */
    /* transform: scale(1.05); */
}

.pricing-card.featured.hover {
    /* 悬停时应用与其他卡片相同的效果 */
    transform: scale(1.05);
    border-color: #515BF5;
}

.pricing-card h3 {
    font-size: 1.5rem;
    margin-bottom: 20px;
    color: #515BF5;
}

.price {
    font-size: 2.5rem;
    font-weight: bold;
    margin-bottom: 30px;
}

.price span {
    font-size: 1rem;
    font-weight: normal;
    color: var(--light-text);
}

.features-list {
    list-style: none;
    margin-bottom: 30px;
    text-align: left;
}

.features-list li {
    margin-bottom: 15px;
    display: flex;
    align-items: center;
}

.features-list i {
    color: #515BF5;
    margin-right: 10px;
}

/* FAQ部分 */
.faq {
    padding: 80px 20px;
    text-align: center;
}

.faq-container {
    max-width: 800px;
    margin: 50px auto;
}

.faq-item {
    margin-bottom: 15px;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    text-align: left;
}

.faq-question {
    background: var(--white);
    padding: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    font-weight: 600;
}

.faq-answer {
    background: var(--light-bg);
    padding: 0 20px;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, padding 0.3s ease;
}

.faq-item.active .faq-answer {
    padding: 20px;
    max-height: 200px;
}

.faq-more {
    margin-top: 40px;
}

.faq-more p {
    margin-bottom: 20px;
    font-size: 1.1rem;
}

/* 注册区域 */
.signup {
    background: radial-gradient(circle at center, rgba(171, 124, 255, 0.9) 0%, #515BF5 70%);
    position: relative;
    overflow: hidden;
    color: var(--white);
    text-align: center;
    padding: 80px 20px;
    border-radius: 0 100px 0 0;
}

.signup::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(180deg,
                rgba(81, 91, 245, 0.8) 0%,
                rgba(171, 124, 255, 0.4) 50%,
                rgba(81, 91, 245, 0.8) 100%);
    pointer-events: none;
    z-index: 0;
}

.signup-content {
    position: relative;
    z-index: 1;
}

.signup h2 {
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.signup p {
    margin-bottom: 30px;
    font-size: 1.1rem;
    opacity: 0.9;
}

.signup-form {
    display: flex;
    gap: 10px;
    max-width: 500px;
    margin: 0 auto;
}

.signup-form input {
    flex: 1;
    padding: 12px 20px;
    border: none;
    border-radius: 30px;
    font-size: 1rem;
}

/* 页脚 */
footer {
    background: var(--light-bg);
    padding: 60px 20px 20px;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    max-width: 1200px;
    margin: 0 auto;
    padding-bottom: 40px;
    border-bottom: 1px solid #ddd;
}

.footer-logo {
    flex: 1;
}

.footer-logo img {
    height: 40px;
    margin-bottom: 15px;
}

.footer-links {
    flex: 2;
    display: flex;
    justify-content: space-around;
}

.footer-column h4 {
    margin-bottom: 20px;
    color: #515BF5;
}

.footer-column a {
    display: block;
    color: var(--text-color);
    text-decoration: none;
    margin-bottom: 10px;
    transition: var(--transition);
}

.footer-column a:hover {
    color: #515BF5;
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    color: var(--light-text);
    max-width: 1200px;
    margin: 0 auto;
}

/* 响应式设计 */
@media (max-width: 992px) {
    .feature-cards, .steps, .pricing-plans {
        flex-direction: column;
        align-items: center;
    }

    .best-choice, .why-choose-us {
        flex-direction: column;
    }

    .pricing-card.featured {
        transform: scale(1);
    }

    .pricing-card {
        max-width: 100%;
    }

    .nav-links {
        display: none;
    }
}

@media (max-width: 768px) {
    .hero h1 {
        font-size: 2.5rem;
    }

    .hero h2 {
        font-size: 1.8rem;
    }

    .section-title {
        font-size: 1.8rem;
    }

    .signup-form {
        flex-direction: column;
    }

    .footer-content {
        flex-direction: column;
        gap: 30px;
    }

    .footer-links {
        flex-direction: column;
        gap: 30px;
    }

    .hero {
        padding-bottom: 220px;
    }

    .feature-cards {
        flex-direction: column;
    }

    .features {
        margin-top: -180px;
    }
}
/* Aurora Project Section */
.aurora-project {
    background: linear-gradient(135deg, #f8f5ff, #f0f5ff);
    padding: 80px 20px;
    text-align: center;
    margin: 60px 0;
}

.aurora-content {
    max-width: 800px;
    margin: 0 auto;
}

.aurora-content h2 {
    color: #515BF5;
    margin-bottom: 20px;
}

.aurora-content p {
    font-size: 1.1rem;
    margin-bottom: 30px;
    color: var(--text-color);
}

/* Popular Badge for Pricing */
.popular-badge {
    background: #515BF5;
    color: white;
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: bold;
    display: inline-block;
    margin-bottom: 15px;
}

.pricing-card.featured {
    border: 2px solid #515BF5;
    position: relative;
    transform: scale(1.02);
}

.pricing-card.featured .btn-outline {
    background: #515BF5;
    color: white;
}

.pricing-card.featured .btn-outline:hover {
    background: #7A69FA;
}

/* Updated Feature Icons */
.card-icon .fa-cloud {
    font-size: 28px;
}

.card-icon .fa-bolt {
    font-size: 26px;
}

.card-icon .fa-robot {
    font-size: 26px;
}

/* Responsive Adjustments */
@media (max-width: 768px) {
    .aurora-project {
        margin: 40px 0;
        padding: 60px 20px;
    }
    
    .pricing-plans {
        gap: 20px;
    }
    
    .pricing-card.featured {
        transform: scale(1);
    }
}