/* 星澜官网样式 */

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #fff;
}

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

/* 导航栏 */
.navbar {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 20px;
}

.nav-brand {
    display: flex;
    align-items: center;
    text-decoration: none;
    color: inherit;
}

.nav-brand a {
    display: flex;
    align-items: center;
    text-decoration: none;
    color: inherit;
}

.logo {
    width: 32px;
    height: 32px;
    margin-right: 10px;
}

.brand-name {
    font-size: 1.5rem;
    font-weight: bold;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

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

.nav-menu a:hover {
    color: #667eea;
}

/* 主页横幅 */
.hero {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 120px 0 80px;
    text-align: center;
}

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

.hero-title {
    font-size: 3.5rem;
    font-weight: bold;
    margin-bottom: 1rem;
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    opacity: 0.9;
}

.hero-description {
    font-size: 1.2rem;
    margin-bottom: 2.5rem;
    opacity: 0.8;
    line-height: 1.6;
}

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

/* 按钮样式 */
.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 25px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.btn-primary {
    background: white;
    color: #667eea;
}

.btn-primary:hover {
    background: rgba(255, 255, 255, 0.9);
    transform: translateY(-2px);
}

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

.btn-secondary:hover {
    background: white;
    color: #667eea;
}

.btn-outline {
    background: transparent;
    color: #667eea;
    border-color: #667eea;
}

.btn-outline:hover {
    background: #667eea;
    color: white;
}

/* 功能特色 */
.features {
    padding: 80px 0;
    background: #f8f9fa;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    font-weight: bold;
    margin-bottom: 3rem;
    color: #333;
}

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

.feature-card {
    background: white;
    padding: 2rem;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

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

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

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: #333;
}

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

/* 定价方案 */
.pricing {
    padding: 80px 0;
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    max-width: 1000px;
    margin: 0 auto;
}

.pricing-card {
    background: white;
    border: 2px solid #e9ecef;
    border-radius: 15px;
    padding: 2rem;
    text-align: center;
    position: relative;
    transition: all 0.3s ease;
}

.pricing-card:hover {
    border-color: #667eea;
    transform: translateY(-5px);
}

.pricing-card.featured {
    border-color: #667eea;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    transform: scale(1.05);
}

.popular-badge {
    position: absolute;
    top: -10px;
    left: 50%;
    transform: translateX(-50%);
    background: #ff6b6b;
    color: white;
    padding: 5px 15px;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: bold;
}

.pricing-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.price {
    font-size: 2.5rem;
    font-weight: bold;
    margin-bottom: 1.5rem;
}

.price span {
    font-size: 1rem;
    opacity: 0.7;
}

.features-list {
    list-style: none;
    margin-bottom: 2rem;
}

.features-list li {
    padding: 0.5rem 0;
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

.pricing-card.featured .features-list li {
    border-bottom-color: rgba(255, 255, 255, 0.2);
}

/* 关于我们 */
.about {
    padding: 80px 0;
    background: #f8f9fa;
}

.about-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.about-content p {
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: 1.5rem;
    color: #666;
}

/* 联系我们 */
.contact {
    padding: 80px 0;
}

.contact-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    max-width: 800px;
    margin: 0 auto;
}

.contact-item {
    text-align: center;
    padding: 1.5rem;
}

.contact-item h3 {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
    color: #333;
}

.contact-item p {
    color: #666;
    font-size: 1.1rem;
}

/* 页脚 */
.footer {
    background: #333;
    color: white;
    padding: 2rem 0;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.footer-brand .brand-name {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.footer-links {
    display: flex;
    gap: 2rem;
}

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

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

.footer-bottom {
    text-align: center;
    padding-top: 1rem;
    border-top: 1px solid #555;
    color: #ccc;
}

/* 法律页面样式 */
.legal-page {
    padding: 120px 0 80px;
    max-width: 800px;
    margin: 0 auto;
}

.legal-page h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: #333;
}

.last-updated {
    color: #666;
    font-style: italic;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid #eee;
}

.legal-page section {
    margin-bottom: 2.5rem;
}

.legal-page h2 {
    font-size: 1.8rem;
    margin-bottom: 1rem;
    color: #333;
    border-bottom: 2px solid #667eea;
    padding-bottom: 0.5rem;
}

.legal-page h3 {
    font-size: 1.3rem;
    margin: 1.5rem 0 0.5rem;
    color: #444;
}

.legal-page p {
    margin-bottom: 1rem;
    line-height: 1.7;
    color: #555;
}

.legal-page ul, .legal-page ol {
    margin: 1rem 0 1rem 2rem;
}

.legal-page li {
    margin-bottom: 0.5rem;
    line-height: 1.6;
    color: #555;
}

.legal-page a {
    color: #667eea;
    text-decoration: none;
}

.legal-page a:hover {
    text-decoration: underline;
}

/* 帮助中心样式 */
.support-page {
    padding: 120px 0 80px;
}

.page-description {
    text-align: center;
    font-size: 1.2rem;
    color: #666;
    margin-bottom: 3rem;
}

.quick-nav {
    margin-bottom: 4rem;
}

.nav-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
}

.nav-card {
    background: white;
    padding: 2rem;
    border-radius: 15px;
    text-align: center;
    text-decoration: none;
    color: inherit;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.nav-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

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

.nav-card h3 {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
    color: #333;
}

.nav-card p {
    color: #666;
    font-size: 0.9rem;
}

.faq-section {
    margin-bottom: 4rem;
}

.faq-item {
    background: white;
    border-radius: 10px;
    margin-bottom: 1.5rem;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    overflow: hidden;
}

.faq-item h3 {
    background: #f8f9fa;
    padding: 1.5rem;
    margin: 0;
    font-size: 1.2rem;
    color: #333;
    border-bottom: 1px solid #eee;
}

.faq-answer {
    padding: 1.5rem;
}

.faq-answer p {
    margin-bottom: 1rem;
    line-height: 1.6;
    color: #555;
}

.faq-answer ul, .faq-answer ol {
    margin: 1rem 0;
    padding-left: 1.5rem;
}

.faq-answer li {
    margin-bottom: 0.5rem;
    line-height: 1.5;
}

.contact-section {
    background: #f8f9fa;
    padding: 3rem 0;
    border-radius: 15px;
    margin: 3rem 0;
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
}

.contact-card {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.contact-icon {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.contact-card h3 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
    color: #333;
}

.contact-card p {
    color: #666;
    margin-bottom: 0.5rem;
}

.contact-note {
    font-size: 0.9rem;
    color: #999;
    font-style: italic;
}

.support-hours {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    text-align: center;
    margin-top: 2rem;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.support-hours h3 {
    margin-bottom: 1rem;
    color: #333;
}

.support-hours p {
    margin-bottom: 0.5rem;
    color: #666;
}

.support-hours .note {
    font-size: 0.9rem;
    color: #999;
    font-style: italic;
    margin-top: 1rem;
}

.feedback-section {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 3rem;
    border-radius: 15px;
    margin: 3rem 0;
}

.feedback-section h2 {
    border-bottom: 2px solid rgba(255, 255, 255, 0.3);
    color: white;
}

.feedback-section p {
    color: rgba(255, 255, 255, 0.9);
}

.feedback-section ul {
    color: rgba(255, 255, 255, 0.9);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.2rem;
    }
    
    .hero-description {
        font-size: 1rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .nav-menu {
        display: none;
    }
    
    .footer-content {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
    
    .footer-links {
        justify-content: center;
    }
    
    .pricing-card.featured {
        transform: none;
    }
    
    .legal-page {
        padding: 100px 20px 60px;
    }
    
    .support-page {
        padding: 100px 0 60px;
    }
}