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

:root {
    --primary-color: #e60012;
    --secondary-color: #ffcc00;
    --text-color: #333;
    --bg-color: #f9f9f9;
    --card-bg: #fff;
    --border-radius: 8px;
    --box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

body {
    font-family: 'Poppins', 'Noto Sans SC', sans-serif;
    color: var(--text-color);
    background-color: var(--bg-color);
    line-height: 1.6;
}

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

/* Header Styles */
header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
    flex-wrap: wrap;
}

.logo h1 {
    font-size: 32px;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 5px;
}

.logo p {
    font-size: 14px;
    color: var(--text-color);
    opacity: 0.8;
}

/* 导航菜单样式 */
.main-nav {
    order: 2;
    width: 100%;
    margin-top: 20px;
}

.main-nav ul {
    display: flex;
    justify-content: center;
    list-style: none;
    padding: 0;
    flex-wrap: wrap;
    gap: 10px;
}

.main-nav li {
    margin: 0 5px;
}

.main-nav a {
    text-decoration: none;
    color: var(--text-color);
    padding: 8px 16px;
    border-radius: var(--border-radius);
    transition: var(--transition);
    font-weight: 500;
    display: block;
}

.main-nav a:hover, .main-nav a.active {
    background-color: var(--primary-color);
    color: white;
}

.language-switch {
    display: flex;
    gap: 10px;
}

.language-switch button {
    padding: 8px 16px;
    background: transparent;
    border: 1px solid #ddd;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
}

.language-switch button.active {
    background-color: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

/* Hero Section */
.hero {
    padding: 60px 0;
    text-align: center;
    background: linear-gradient(135deg, rgba(255, 204, 0, 0.1) 0%, rgba(230, 0, 18, 0.1) 100%);
    border-radius: var(--border-radius);
    margin: 40px 0;
}

/* 添加平滑滚动行为 */
html {
    scroll-behavior: smooth;
}

/* 添加各部分的锚点偏移，防止导航被固定头部遮挡 */
#name-generator, #name-wall, #popular-names, #culture-section, #faq-section {
    scroll-margin-top: 100px;
}

/* 移动设备导航栏样式优化 */
@media (min-width: 768px) {
    header {
        flex-wrap: nowrap;
    }
    
    .main-nav {
        order: 0;
        width: auto;
        margin-top: 0;
    }
}

/* 响应式导航栏 - 小屏幕 */
@media (max-width: 767px) {
    .main-nav ul {
        justify-content: space-around;
    }
    
    .main-nav a {
        padding: 8px 10px;
        font-size: 14px;
    }
}

.hero-content h2 {
    font-size: 36px;
    margin-bottom: 20px;
    color: var(--primary-color);
}

.hero-content p {
    font-size: 18px;
    max-width: 700px;
    margin: 0 auto;
    color: var(--text-color);
}

/* Name Generator Section */
.name-generator {
    padding: 40px 0;
}

.input-section {
    max-width: 600px;
    margin: 0 auto 40px;
    text-align: center;
}

.input-section h3 {
    margin-bottom: 20px;
    font-size: 24px;
}

.name-input {
    display: flex;
    gap: 10px;
}

.name-input input {
    flex: 1;
    padding: 12px 20px;
    border: 1px solid #ddd;
    border-radius: var(--border-radius);
    font-size: 16px;
    font-family: inherit;
}

.name-input button {
    background-color: var(--primary-color);
    color: white;
    padding: 12px 24px;
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    font-size: 16px;
    font-weight: 500;
    transition: var(--transition);
}

.name-input button:hover {
    background-color: #d40010;
}

/* Result Section */
.result-section {
    max-width: 600px;
    margin: 0 auto;
}

.result-card {
    background-color: var(--card-bg);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    padding: 30px;
    text-align: center;
    border-top: 5px solid var(--primary-color);
}

.result-card h3 {
    font-size: 24px;
    margin-bottom: 20px;
}

.chinese-name {
    font-family: 'Ma Shan Zheng', 'Noto Sans SC', sans-serif;
    font-size: 64px;
    color: var(--primary-color);
    margin: 30px 0;
    line-height: 1.2;
}

.name-explanation {
    background-color: rgba(230, 0, 18, 0.05);
    padding: 20px;
    border-radius: var(--border-radius);
    text-align: left;
    margin-bottom: 20px;
}

.name-explanation p {
    margin-bottom: 10px;
    font-size: 16px;
}

.name-explanation p:last-child {
    margin-bottom: 0;
}

/* Share Buttons */
.share-buttons {
    margin-top: 20px;
}

.share-buttons p {
    margin-bottom: 10px;
    font-size: 14px;
}

.social-icons {
    display: flex;
    justify-content: center;
    gap: 15px;
}

.social-icon {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background-color: #f0f0f0;
    color: #333;
    transition: var(--transition);
}

.social-icon:hover {
    background-color: var(--primary-color);
    color: white;
    transform: translateY(-2px);
}

/* Name Wall Section */
.name-wall {
    margin: 60px 0;
    text-align: center;
}

.name-wall h3 {
    font-size: 28px;
    margin-bottom: 10px;
    color: var(--primary-color);
}

.name-wall > p {
    margin-bottom: 30px;
    font-size: 16px;
    opacity: 0.8;
}

.name-cards {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 20px;
    margin-top: 30px;
}

.name-card {
    background-color: var(--card-bg);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    padding: 20px;
    transition: var(--transition);
    cursor: pointer;
}

.name-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.english-name {
    font-size: 14px;
    color: #777;
    margin-bottom: 5px;
}

.chinese-name-small {
    font-family: 'Ma Shan Zheng', 'Noto Sans SC', sans-serif;
    font-size: 28px;
    color: var(--primary-color);
    margin: 5px 0 10px;
}

.card-meaning {
    font-size: 12px;
    color: #555;
    font-style: italic;
}

/* Popular Names Section */
.popular-names {
    margin: 60px 0;
    background-color: var(--card-bg);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    padding: 30px;
}

.popular-names h3 {
    font-size: 24px;
    margin-bottom: 30px;
    text-align: center;
    color: var(--primary-color);
}

.popular-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 25px;
}

.popular-item {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
}

.popular-item .english {
    font-weight: 600;
    color: #555;
    margin-right: 10px;
}

.popular-item .arrow {
    color: var(--primary-color);
    margin: 0 8px;
}

.popular-item .chinese {
    font-family: 'Noto Sans SC', sans-serif;
    font-size: 18px;
    color: var(--primary-color);
    font-weight: 500;
}

.popular-item .pinyin {
    width: 100%;
    text-align: center;
    font-size: 12px;
    color: #777;
    margin-top: 5px;
}

/* About Section */
.about-section {
    max-width: 800px;
    margin: 60px auto;
    padding: 30px;
    background-color: var(--card-bg);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}

.about-section h3 {
    font-size: 24px;
    margin-bottom: 20px;
    color: var(--primary-color);
}

.about-section p {
    margin-bottom: 15px;
    font-size: 16px;
}

.about-section p:last-child {
    margin-bottom: 0;
}

/* Culture Section */
.culture-section {
    margin: 60px 0;
    text-align: center;
}

.culture-section h3 {
    font-size: 28px;
    margin-bottom: 40px;
    color: var(--primary-color);
}

.culture-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.culture-card {
    background-color: var(--card-bg);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    padding: 30px;
    transition: var(--transition);
}

.culture-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.card-icon {
    font-size: 32px;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.culture-card h4 {
    font-size: 20px;
    margin-bottom: 15px;
}

.culture-card p {
    font-size: 15px;
    color: #555;
}

/* FAQ Section */
.faq-section {
    margin: 60px 0;
}

.faq-section h3 {
    font-size: 28px;
    margin-bottom: 30px;
    text-align: center;
    color: var(--primary-color);
}

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

.accordion-item {
    background-color: var(--card-bg);
    border-radius: var(--border-radius);
    margin-bottom: 15px;
    box-shadow: var(--box-shadow);
    overflow: hidden;
}

.accordion-header {
    padding: 20px;
    font-weight: 600;
    cursor: pointer;
    position: relative;
    transition: var(--transition);
}

.accordion-header:hover {
    color: var(--primary-color);
}

.accordion-header::after {
    content: '+';
    position: absolute;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 20px;
    color: var(--primary-color);
}

.accordion-item.active .accordion-header::after {
    content: '-';
}

.accordion-content {
    padding: 0 20px;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
    background-color: rgba(230, 0, 18, 0.03);
}

.accordion-item.active .accordion-content {
    padding: 20px;
    max-height: 500px;
}

/* Testimonial Section */
.testimonial-section {
    margin: 60px 0;
    text-align: center;
}

.testimonial-section h3 {
    font-size: 28px;
    margin-bottom: 40px;
    color: var(--primary-color);
}

.testimonials {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.testimonial {
    background-color: var(--card-bg);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    padding: 30px;
    text-align: left;
    position: relative;
}

.quote {
    color: var(--primary-color);
    font-size: 24px;
    opacity: 0.5;
    margin-bottom: 15px;
}

.testimonial p {
    font-style: italic;
    margin-bottom: 15px;
}

.author {
    font-weight: 600;
    color: #555;
}

/* Footer Styles */
footer {
    text-align: center;
    padding: 30px 0;
    margin-top: 40px;
    border-top: 1px solid rgba(0, 0, 0, 0.1);
    background-color: #f3f3f3;
}

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

.footer-links {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.footer-links a {
    color: var(--text-color);
    text-decoration: none;
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--primary-color);
}

footer p {
    font-size: 14px;
    color: var(--text-color);
    opacity: 0.7;
    margin-top: 10px;
}

/* 返回顶部按钮 */
#back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background-color: var(--primary-color);
    color: white;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    box-shadow: var(--box-shadow);
    opacity: 0;
    transition: var(--transition);
    pointer-events: none;
    z-index: 1000;
}

#back-to-top.visible {
    opacity: 1;
    pointer-events: auto;
}

#back-to-top:hover {
    background-color: #d40010;
    transform: translateY(-3px);
}

/* Responsive Styles */
@media (max-width: 768px) {
    header {
        flex-direction: column;
        gap: 20px;
        padding: 15px 0;
    }
    
    .hero-content h2 {
        font-size: 28px;
    }
    
    .hero-content p {
        font-size: 16px;
    }
    
    .name-input {
        flex-direction: column;
    }
    
    .chinese-name {
        font-size: 48px;
    }
    
    .popular-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .culture-cards,
    .testimonials {
        grid-template-columns: 1fr;
    }
    
    /* 返回顶部按钮在移动设备上的样式 */
    #back-to-top {
        width: 40px;
        height: 40px;
        bottom: 20px;
        right: 20px;
        font-size: 16px;
    }
}

@media (max-width: 480px) {
    .hero-content h2 {
        font-size: 24px;
    }
    
    .hero {
        padding: 40px 0;
    }
    
    .result-card {
        padding: 20px;
    }
    
    .chinese-name {
        font-size: 36px;
    }
    
    .popular-grid {
        grid-template-columns: 1fr;
    }
}