/* 全局样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* 模态框动画定义 */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes scaleIn {
    from {
        transform: scale(0.9);
        opacity: 0;
    }
    to {
        transform: scale(1);
        opacity: 1;
    }
}

/* 链接和可点击元素设置为手型光标 */
a, button, .btn, .btn-primary, .btn-secondary, .btn-download,
input[type="submit"], input[type="button"], input[type="reset"],
[role="button"], [onclick], .nav-toggle, .modal-close, .pay-modal-close,
.pay-article {
    cursor: pointer !important;
}

/* 基础样式 */
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    overflow-x: hidden;
}

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

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

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

.nav-logo {
    display: flex;
    align-items: center;
    font-size: 1.5rem;
    font-weight: bold;
    color: #0ea5e9;
}

.nav-logo i {
    margin-right: 10px;
    font-size: 1.8rem;
}

.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: #0ea5e9;
}

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

.nav-toggle span {
    width: 25px;
    height: 3px;
    background: #333;
    margin: 3px 0;
    transition: 0.3s;
}

/* 主页横幅 */
.hero {
    min-height: 100vh;
    background: linear-gradient(135deg, #0ea5e9 0%, #06b6d4 100%);
    display: flex;
    align-items: center;
    color: white;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="50" cy="50" r="1" fill="white" opacity="0.1"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
    opacity: 0.3;
}

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

.hero-content h1 {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    background: linear-gradient(45deg, #fff, #e0e7ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

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

.feature-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
}

.feature-item i {
    color: #fbbf24;
}

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

.btn {
    padding: 12px 24px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-primary {
    background: #10b981;
    color: white;
}

.btn-primary:hover {
    background: #059669;
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(16, 185, 129, 0.3);
}

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

.btn-secondary:hover {
    background: white;
    color: #0ea5e9;
}

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

.hero-graphic {
    width: 300px;
    height: 300px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.hero-graphic i {
    font-size: 8rem;
    color: rgba(255, 255, 255, 0.8);
}

/* 功能特色 */
.features {
    padding: 100px 0;
    background: #f8fafc;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 3rem;
    color: #1f2937;
}

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

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

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

.feature-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #0ea5e9, #06b6d4);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
}

.feature-icon i {
    font-size: 2rem;
    color: white;
}

.feature-card h3 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #1f2937;
}

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

/* 收费资讯 */
.pricing {
    padding: 100px 0;
    background: white;
}

.pricing-note {
    font-size: 1rem;
    color: #ef4444;
    font-weight: normal;
    margin-left: 10px;
}

.pricing-list {
    max-width: 800px;
    margin: 0 auto;
}

.pricing-item {
    display: flex;
    gap: 2rem;
    padding: 2rem 0;
    border-bottom: 1px solid #e5e7eb;
    transition: all 0.3s ease;
}

.pricing-item:hover {
    background: #f8fafc;
    margin: 0 -2rem;
    padding: 2rem;
    border-radius: 10px;
}

/* 付费文章点击样式 */
.pay-article {
    transition: all 0.3s ease;
    position: relative;
}

.pay-article:hover {
    background: linear-gradient(135deg, #f0f9ff, #e0f2fe);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(14, 165, 233, 0.15);
    border: 1px solid rgba(14, 165, 233, 0.2);
}

.pay-article:active {
    transform: translateY(0);
    box-shadow: 0 4px 15px rgba(14, 165, 233, 0.1);
}

.pricing-date {
    flex-shrink: 0;
    width: 80px;
    font-size: 0.9rem;
    color: #6b7280;
    font-weight: 500;
}

.pricing-content {
    flex: 1;
}

.pricing-content h3 {
    margin-bottom: 0.5rem;
}

.pricing-content h3 a {
    color: #1f2937;
    text-decoration: none;
    font-size: 1.2rem;
    font-weight: 600;
    transition: color 0.3s ease;
}

.pricing-content h3 a:hover {
    color: #0ea5e9;
}

.pricing-content p {
    color: #6b7280;
    line-height: 1.6;
    margin: 0;
}

.pricing-pagination {
    text-align: center;
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid #e5e7eb;
    color: #6b7280;
}

.pricing-pagination strong {
    color: #1f2937;
}

/* 下载区域 */
.download {
    padding: 100px 0;
    background: linear-gradient(135deg, #1f2937, #374151);
    color: white;
    text-align: center;
}

.download-content h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

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

.download-info {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.info-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.label {
    opacity: 0.7;
}

.value {
    font-weight: 600;
    color: #10b981;
}

.btn-download {
    background: #10b981;
    color: white;
    padding: 15px 30px;
    font-size: 1.1rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-download:hover {
    background: #059669;
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(16, 185, 129, 0.3);
}

/* 关于我们 */
.about {
    padding: 80px 0;
    background: #f9fafb;
}

.about-content {
    max-width: 1200px;
    margin: 0 auto;
}

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

.about-info h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: #111827;
    margin-bottom: 1.5rem;
}

.about-info p {
    color: #6b7280;
    line-height: 1.8;
    margin-bottom: 1rem;
    font-size: 1rem;
}

.contact-details h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: #111827;
    margin-bottom: 1.5rem;
}

.about .contact-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
    padding: 0.75rem;
    background: white;
    border-radius: 8px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.about .contact-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.about .contact-item i {
    color: #10b981;
    font-size: 1.2rem;
    width: 20px;
    text-align: center;
}

.about .contact-item span {
    color: #374151;
    font-size: 0.95rem;
    flex: 1;
}

@media (max-width: 768px) {
    .about-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .about {
        padding: 60px 0;
    }
}

/* 页脚 */
.footer {
    background: #111827;
    color: white;
    padding: 50px 0 20px;
}

.footer-content {
    display: flex;
    justify-content: center;
    gap: 5rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.footer-section {
    text-align: center;
}

.footer-section h4 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #10b981;
}

.footer-section ul {
    list-style: none;
    display: flex;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
}

.footer-section li {
    margin-bottom: 0;
}

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

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

.footer-contact {
    text-align: center;
    padding: 2rem 0;
    border-top: 1px solid #374151;
    margin-top: 2rem;
}

.contact-info {
    display: flex;
    justify-content: center;
    gap: 3rem;
    margin-bottom: 0.5rem;
    flex-wrap: wrap;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: #9ca3af;
    font-size: 0.8rem;
}

.contact-item i {
    color: #10b981;
    font-size: 1rem;
}

.icp-info {
    color: #9ca3af;
    font-size: 0.8rem;
    margin: 0.5rem 0;
    text-align: center;
}

.icp-info p {
    margin: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.icp-icon {
    width: 15px;
    height: 16px;
    vertical-align: middle;
}

.company-info {
    color: #9ca3af;
    font-size: 0.8rem;
    margin: 0.5rem 0 0 0;
    text-align: center;
}

.company-info p {
    margin: 0;
}

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

/* ICP link style override */
.icp-info a,
.icp-info a:visited {
    color: inherit;
    text-decoration: none;
    font-size: inherit;
}

.copyright-text {
    margin-left: 0em;
    margin-right: 1em;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-content h1 {
        font-size: 2.5rem;
    }
    
    .hero-features {
        justify-content: center;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }

    .pricing-item {
        flex-direction: column;
        gap: 1rem;
    }

    .pricing-date {
        width: auto;
    }
    
    .download-info {
        flex-direction: column;
        align-items: center;
    }
    
    .contact-info {
        flex-direction: column;
        gap: 1rem;
    }
}