/* ========== Blog Styles ========== */

/* Blog Header */
.blog-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 4rem 0 3rem;
    text-align: center;
}

.blog-header h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.blog-header .subtitle {
    font-size: 1.2rem;
    opacity: 0.9;
}

/* Blog List */
.blog-list {
    padding: 4rem 0;
    background: #f8f9fa;
}

.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.blog-card {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    display: flex;
    flex-direction: column;
}

.blog-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0,0,0,0.15);
}

.blog-card-content {
    padding: 2rem;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.blog-category {
    display: inline-block;
    background: #667eea;
    color: white;
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.blog-card h2 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    line-height: 1.4;
}

.blog-card h2 a {
    color: #2c3e50;
    text-decoration: none;
    transition: color 0.3s ease;
}

.blog-card h2 a:hover {
    color: #667eea;
}

.blog-card h3 {
    font-size: 1.3rem;
    margin-bottom: 0.8rem;
    line-height: 1.4;
}

.blog-card h3 a {
    color: #2c3e50;
    text-decoration: none;
    transition: color 0.3s ease;
}

.blog-card h3 a:hover {
    color: #667eea;
}

.blog-card p {
    color: #666;
    line-height: 1.6;
    margin-bottom: 1.5rem;
    flex: 1;
}

.blog-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 1rem;
    border-top: 1px solid #eee;
    margin-top: auto;
}

.blog-date {
    color: #999;
    font-size: 0.9rem;
}

.read-more {
    color: #667eea;
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s ease;
}

.read-more:hover {
    color: #764ba2;
}

/* Blog Post */
.blog-post {
    padding: 4rem 0;
}

.post-header {
    text-align: center;
    margin-bottom: 3rem;
    padding-bottom: 2rem;
    border-bottom: 2px solid #eee;
}

.post-header h1 {
    font-size: 2.5rem;
    color: #2c3e50;
    margin-bottom: 1rem;
    line-height: 1.3;
}

.post-meta {
    display: flex;
    justify-content: center;
    gap: 2rem;
    color: #666;
    font-size: 0.95rem;
}

.post-author {
    font-weight: 600;
}

.post-content {
    max-width: 800px;
    margin: 0 auto;
    font-size: 1.1rem;
    line-height: 1.8;
    color: #333;
}

.post-content .lead {
    font-size: 1.3rem;
    color: #555;
    line-height: 1.6;
    margin-bottom: 2rem;
    padding-left: 1rem;
    border-left: 4px solid #667eea;
}

.post-content h2 {
    font-size: 2rem;
    color: #2c3e50;
    margin-top: 3rem;
    margin-bottom: 1.5rem;
}

.post-content h3 {
    font-size: 1.5rem;
    color: #34495e;
    margin-top: 2rem;
    margin-bottom: 1rem;
}

.post-content p {
    margin-bottom: 1.5rem;
}

.post-content ul,
.post-content ol {
    margin-bottom: 1.5rem;
    padding-left: 2rem;
}

.post-content li {
    margin-bottom: 0.8rem;
    line-height: 1.7;
}

.post-content strong {
    color: #2c3e50;
    font-weight: 600;
}

.post-content a {
    color: #667eea;
    text-decoration: none;
    border-bottom: 1px solid #667eea;
    transition: color 0.3s ease;
}

.post-content a:hover {
    color: #764ba2;
    border-bottom-color: #764ba2;
}

.cta-box {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 3rem;
    border-radius: 12px;
    text-align: center;
    margin-top: 4rem;
}

.cta-box h3 {
    font-size: 1.8rem;
    margin-bottom: 1rem;
}

.cta-box p {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    opacity: 0.95;
}

.cta-box .btn-primary {
    background: white;
    color: #667eea;
    font-weight: 600;
}

.cta-box .btn-primary:hover {
    background: #f8f9fa;
}

/* Pagination */
.pagination {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    margin-top: 3rem;
}

.pagination a,
.page-current {
    padding: 0.5rem 1rem;
    border: 1px solid #ddd;
    border-radius: 5px;
    color: #667eea;
    text-decoration: none;
    transition: all 0.3s ease;
}

.pagination a:hover {
    background: #667eea;
    color: white;
    border-color: #667eea;
}

.page-current {
    background: #667eea;
    color: white;
    border-color: #667eea;
}

/* Blog Sidebar */
.blog-sidebar-section {
    padding: 3rem 0;
    background: white;
}

.sidebar-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.sidebar-widget {
    background: #f8f9fa;
    padding: 2rem;
    border-radius: 12px;
}

.sidebar-widget h3 {
    font-size: 1.3rem;
    color: #2c3e50;
    margin-bottom: 1.5rem;
}

.tag-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem;
}

.tag {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: white;
    color: #667eea;
    border-radius: 20px;
    text-decoration: none;
    font-size: 0.9rem;
    transition: all 0.3s ease;
    border: 1px solid #667eea;
}

.tag:hover {
    background: #667eea;
    color: white;
}

.category-list {
    list-style: none;
}

.category-list li {
    margin-bottom: 1rem;
}

.category-list a {
    color: #2c3e50;
    text-decoration: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.5rem 0;
    transition: color 0.3s ease;
}

.category-list a:hover {
    color: #667eea;
}

.category-list span {
    color: #999;
    font-size: 0.9rem;
}

/* Newsletter */
.newsletter {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 4rem 0;
}

.newsletter-content {
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

.newsletter h2 {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.newsletter p {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    opacity: 0.95;
}

.newsletter-form {
    display: flex;
    gap: 1rem;
    max-width: 500px;
    margin: 0 auto;
}

.newsletter-form input {
    flex: 1;
    padding: 1rem;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
}

.newsletter-form button {
    padding: 1rem 2rem;
    white-space: nowrap;
}

/* Blog Preview Section (for homepage) */
.blog-preview {
    padding: 4rem 0;
    background: white;
}

.blog-preview h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: #2c3e50;
}

/* Responsive Design */
@media (max-width: 768px) {
    .blog-header h1 {
        font-size: 2rem;
    }

    .blog-grid {
        grid-template-columns: 1fr;
    }

    .post-header h1 {
        font-size: 1.8rem;
    }

    .post-content {
        font-size: 1rem;
    }

    .post-content .lead {
        font-size: 1.1rem;
    }

    .post-content h2 {
        font-size: 1.5rem;
    }

    .post-content h3 {
        font-size: 1.3rem;
    }

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

    .sidebar-content {
        grid-template-columns: 1fr;
    }

    .post-meta {
        flex-direction: column;
        gap: 0.5rem;
    }
}

@media (max-width: 480px) {
    .blog-header {
        padding: 3rem 0 2rem;
    }

    .blog-header h1 {
        font-size: 1.5rem;
    }

    .blog-card-content {
        padding: 1.5rem;
    }

    .cta-box {
        padding: 2rem 1.5rem;
    }
}
/* ========== Reset and Base Styles ========== */
* {
    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: #fff;
}

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

/* ========== Header and Navigation ========== */
header {
    background: white;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

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

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

.logo a {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
    color: #2c3e50;
    font-size: 1.5rem;
    font-weight: bold;
}

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

.nav-links {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
}

.nav-links li {
    position: relative;
}

.nav-links a {
    text-decoration: none;
    color: #2c3e50;
    font-weight: 500;
    transition: color 0.3s ease;
    padding: 0.5rem 0;
}

.nav-links a:hover,
.nav-links a.active {
    color: #667eea;
}

.language-switcher {
    display: flex;
    align-items: center;  /* 添加这行，垂直居中对齐 */
    gap: 0.5rem;
    font-size: 0.9rem;
}

.language-switcher a {
    color: #666;
    text-decoration: none;
    transition: color 0.3s ease;
}

.language-switcher a:hover {
    color: #667eea;
}

.language-switcher .current {
    color: #667eea;
    font-weight: 600;
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: #2c3e50;
    padding: 0.5rem;
}

/* ========== Footer ========== */
footer {
    background: #2c3e50;
    color: white;
    padding: 3rem 0 1rem;
    margin-top: 4rem;
}

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

.footer-section h4 {
    font-size: 1.2rem;
    margin-bottom: 1rem;
    color: white;
}

.footer-section p {
    color: #bdc3c7;
    line-height: 1.6;
    margin-bottom: 1rem;
}

.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: #667eea;
}

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

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

.social-links a:hover {
    color: #667eea;
}

.footer-bottom {
    border-top: 1px solid #34495e;
    padding-top: 1.5rem;
    text-align: center;
}

.footer-bottom p {
    color: #95a5a6;
    font-size: 0.9rem;
}

/* ========== Buttons ========== */
.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    padding: 0.8rem 2rem;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.4);
}

.btn-secondary {
    background: white;
    color: #667eea;
    border: 2px solid #667eea;
    padding: 0.8rem 2rem;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
}

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

.btn-large {
    padding: 1rem 2.5rem;
    font-size: 1.1rem;
}

.btn-copy {
    background: #28a745;
    color: white;
    border: none;
    padding: 0.8rem 1.5rem;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-copy:hover {
    background: #218838;
}

/* ========== Text Utilities ========== */
.text-center {
    text-align: center;
}

/* ========== Hero Section ========== */
.hero {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 4rem 0;
    text-align: center;
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.hero .subtitle {
    font-size: 1.3rem;
    margin-bottom: 3rem;
    opacity: 0.9;
}

/* ========== Upload Section ========== */
.upload-section {
    max-width: 600px;
    margin: 0 auto;
}

.upload-box {
    background: white;
    border: 3px dashed #667eea;
    border-radius: 12px;
    padding: 3rem;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

.upload-box:hover,
.upload-box.dragover {
    border-color: #764ba2;
    background: #f8f9fa;
}

.upload-icon {
    width: 80px;
    height: 80px;
    color: #667eea;
}

.upload-box p {
    color: #666;
    font-size: 1.1rem;
    margin: 1rem 0;
}

/* ========== Progress Section ========== */
.progress-section {
    background: white;
    border-radius: 12px;
    padding: 2rem;
}

.progress-bar {
    width: 100%;
    height: 20px;
    background: #e9ecef;
    border-radius: 10px;
    overflow: hidden;
    margin-bottom: 1rem;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    transition: width 0.3s ease;
    width: 0%;
}

.progress-text {
    text-align: center;
    color: #666;
    font-weight: 600;
}

/* ========== Result Section ========== */
.result-section {
    background: white;
    border-radius: 12px;
    padding: 2rem;
}

.success-message {
    text-align: center;
    margin-bottom: 2rem;
}

.success-icon {
    width: 60px;
    height: 60px;
    color: #28a745;
    margin-bottom: 1rem;
}

.success-message h3 {
    color: #28a745;
    font-size: 1.5rem;
}

.link-box {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
}

.link-box input {
    flex: 1;
    padding: 0.8rem;
    border: 2px solid #e9ecef;
    border-radius: 8px;
    font-size: 1rem;
}

.qr-code {
    text-align: center;
    margin-bottom: 2rem;
}

/* ========== Features Section ========== */
.features {
    padding: 4rem 0;
    background: #f8f9fa;
}

.features h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: #2c3e50;
}

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

.feature-card {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 2px 10px 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: 1.3rem;
    color: #2c3e50;
    margin-bottom: 0.5rem;
}

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

/* ========== How It Works Section ========== */
.how-it-works {
    padding: 4rem 0;
    background: white;
}

.how-it-works h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: #2c3e50;
}

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

.step {
    text-align: center;
    padding: 2rem;
}

.step-number {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: bold;
    margin: 0 auto 1rem;
}

.step h3 {
    font-size: 1.3rem;
    color: #2c3e50;
    margin-bottom: 0.5rem;
}

.step p {
    color: #666;
}

/* ========== CTA Section ========== */
.cta {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 4rem 0;
    text-align: center;
}

.cta h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

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

/* ========== Testimonials Section ========== */
.testimonials {
    padding: 4rem 0;
    background: #f8f9fa;
}

.testimonials h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: #2c3e50;
}

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

.testimonial-card {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.testimonial-card p {
    color: #666;
    font-style: italic;
    margin-bottom: 1rem;
    line-height: 1.8;
}

.testimonial-author {
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
}

.testimonial-author strong {
    color: #2c3e50;
}

.testimonial-author span {
    color: #999;
    font-size: 0.9rem;
}

/* ========== FAQ Section ========== */
.faq {
    padding: 4rem 0;
    background: white;
}

.faq h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: #2c3e50;
}

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

.faq-item {
    background: #f8f9fa;
    padding: 1.5rem;
    border-radius: 8px;
    margin-bottom: 1rem;
}

.faq-item h3 {
    color: #2c3e50;
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
}

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

/* ========== Responsive Design ========== */
@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 70px;
        left: -100%;
        flex-direction: column;
        background: white;
        width: 100%;
        padding: 2rem;
        box-shadow: 0 5px 20px rgba(0,0,0,0.1);
        transition: left 0.3s ease;
        gap: 1rem;
        align-items: flex-start;
    }

    .nav-links.active {
        left: 0;
    }

    .mobile-menu-toggle {
        display: block;
    }

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

    .hero .subtitle {
        font-size: 1rem;
    }

    .upload-box {
        padding: 2rem 1rem;
    }

    .feature-grid,
    .steps,
    .testimonial-grid {
        grid-template-columns: 1fr;
    }

    .footer-content {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 1.5rem;
    }

    .link-box {
        flex-direction: column;
    }

    .btn-large {
        padding: 0.8rem 1.5rem;
        font-size: 1rem;
    }
}