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

/* 根变量定义 */
:root {
    --primary-color: #4a6cf7;
    --secondary-color: #6c85d3;
    --accent-color: #3e5bdb;
    --success-color: #2ecc71;
    --warning-color: #f39c12;
    --error-color: #e74c3c;
    --text-primary: #1a202c;
    --text-secondary: #4a5568;
    --text-light: #718096;
    --background-primary: #ffffff;
    --background-secondary: #f8fafc;
    --background-accent: #f0f4ff;
    --border-color: #e2e8f0;
    --shadow-light: 0 2px 4px rgba(0, 0, 0, 0.05);
    --shadow-medium: 0 4px 8px rgba(0, 0, 0, 0.1);
    --shadow-heavy: 0 10px 15px rgba(0, 0, 0, 0.1);
    --border-radius: 12px;
    --transition: all 0.3s ease;
}

/* 基础样式 */
body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--background-secondary);
    overflow-x: hidden;
}

/* 容器 */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 按钮基础样式 */
button {
    cursor: pointer;
    font-family: inherit;
    font-size: 1rem;
    transition: var(--transition);
    border: none;
    outline: none;
    border-radius: var(--border-radius);
}

.btn-primary {
    background-color: var(--primary-color);
    color: white;
    padding: 12px 24px;
    font-weight: 500;
    box-shadow: 0 4px 6px rgba(74, 108, 247, 0.2);
    transition: var(--transition);
}

.btn-primary:hover {
    background-color: var(--accent-color);
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(74, 108, 247, 0.3);
}

.btn-outline {
    background-color: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
    padding: 10px 22px;
    font-weight: 500;
    transition: var(--transition);
}

.btn-outline:hover {
    background-color: var(--primary-color);
    color: white;
}

.btn-secondary {
    background-color: var(--background-accent);
    color: var(--primary-color);
    padding: 12px 24px;
    font-weight: 500;
    transition: var(--transition);
}

.btn-secondary:hover {
    background-color: rgba(74, 108, 247, 0.1);
    transform: translateY(-2px);
}

/* 下载按钮样式 - downlbtnvmmn */
.downlbtnvmmn {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: white;
    padding: 15px 30px;
    font-size: 1.1rem;
    font-weight: 600;
    border-radius: var(--border-radius);
    border: none;
    box-shadow: 0 6px 16px rgba(74, 108, 247, 0.3);
    position: relative;
    overflow: hidden;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 1;
}


.question-images img{
	
border-radius: 4px;	
	
}

.downlbtnvmmn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: all 0.6s ease;
    z-index: -1;
}

.downlbtnvmmn:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 24px rgba(74, 108, 247, 0.4);
}

.downlbtnvmmn:hover::before {
    left: 100%;
}

.downlbtnvmmn:active {
    transform: translateY(-1px);
    box-shadow: 0 8px 16px rgba(74, 108, 247, 0.4);
}

/* 导航栏 */
.navbar {
    background-color: var(--background-primary);
    box-shadow: var(--shadow-light);
    padding: 1.5rem 0;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    transition: var(--transition);
}

.navbar.scrolled {
    padding: 1rem 0;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-medium);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo h1 {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--primary-color);
    margin: 0;
}

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

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary-color);
    transition: var(--transition);
}

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

.nav-links a:hover::after,
.nav-links a.active::after {
    width: 100%;
}

.nav-actions {
    display: flex;
    gap: 1rem;
}

.menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 30px;
    height: 20px;
    cursor: pointer;
}

.menu-toggle span {
    display: block;
    height: 3px;
    width: 100%;
    background-color: var(--text-primary);
    border-radius: 3px;
    transition: var(--transition);
}

/* 首屏区域 */
.hero {
    padding: 12rem 0 8rem;
    background: linear-gradient(135deg, var(--background-accent) 0%, var(--background-secondary) 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -10%;
    right: -10%;
    width: 50%;
    height: 120%;
    background: radial-gradient(circle, rgba(74, 108, 247, 0.05) 0%, transparent 70%);
    border-radius: 50%;
    z-index: 0;
}

.hero-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 4rem;
    position: relative;
    z-index: 1;
}

.hero-text {
    flex: 1;
    max-width: 500px;
}

.hero-text h2 {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.2;
    color: var(--text-primary);
    margin-bottom: 1.5rem;
}

.hero-text p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    line-height: 1.7;
}

.hero-buttons {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 2.5rem;
}

.hero-stats {
    display: flex;
    gap: 2rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
}

.stat-item {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.stat-text {
    font-size: 0.9rem;
    color: var(--text-light);
}

.hero-image {
    flex: 1;
    max-width: 500px;
    animation: float 6s ease-in-out infinite;
}

.hero-image img {
    width: 100%;
    height: auto;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-heavy);
}

/* 特点展示 */
.features {
    padding: 8rem 0;
    background-color: var(--background-primary);
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-header h3 {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.section-header p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto;
}

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

.feature-card {
    background-color: var(--background-secondary);
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-light);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 5px;
    height: 100%;
    background-color: var(--primary-color);
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-heavy);
}

.card-icon {
    width: 60px;
    height: 60px;
    background-color: var(--background-accent);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    color: var(--primary-color);
}

.feature-card h4 {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

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

/* 提问社区 */
.questions-section {
    padding: 8rem 0;
    background-color: var(--background-secondary);
}

.questions-container {
    display: flex;
    gap: 2rem;
    margin-top: 3rem;
}

/* 左侧问题列表 */
.questions-list {
    flex: 2;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
 
    overflow-y: auto;
}

/* 自定义滚动条 */
.questions-list::-webkit-scrollbar {
    width: 8px;
}

.questions-list::-webkit-scrollbar-track {
    background: var(--background-secondary);
    border-radius: 4px;
}

.questions-list::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}

.questions-list::-webkit-scrollbar-thumb:hover {
    background: var(--text-light);
}

.question-item {
    background-color: var(--background-primary);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    box-shadow: var(--shadow-light);
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

.question-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-medium);
    border-color: var(--primary-color);
}

.question-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
}

.user-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background-color: var(--background-accent);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    flex-shrink: 0;
}

.question-meta {
    display: flex;
    flex-direction: column;
}

.user-name {
    font-weight: 600;
    color: var(--text-primary);
}

.question-time {
    font-size: 0.85rem;
    color: var(--text-light);
}

.question-content h4 {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.8rem;
    line-height: 1.4;
}

.question-description {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 1rem;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.question-stats {
    display: flex;
    gap: 1.5rem;
    font-size: 0.9rem;
    color: var(--text-light);
}

/* 问题图片区域样式 */
.question-images {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    margin-top: 16px;
}

.image-container {
    position: relative;
    border-radius: var(--border-radius);
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    background-color: var(--background-secondary);
    padding: 8px;
    border: 1px solid var(--border-color);
}

.image-container:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
}

.image-container svg {
    width: 100%;
    height: 120px;
    object-fit: cover;
    border-radius: calc(var(--border-radius) - 4px);
}

.image-caption {
    display: block;
    text-align: center;
    font-size: 12px;
    color: var(--text-light);
    margin-top: 8px;
    font-weight: 500;
}

.answers-count {
    font-weight: 500;
    color: var(--primary-color);
}

/* 回答区域样式 */
.answer-section {
    margin-top: 24px;
    padding-top: 24px;
    border-top: 1px solid var(--border-color);
}

.answer-item {
    background-color: var(--background-secondary);
    border-radius: var(--border-radius);
    padding: 16px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    margin-bottom: 1rem;
}

.answer-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.answer-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
}

.answer-header .user-avatar {
    width: 40px;
    height: 40px;
}

.answer-meta {
    display: flex;
    flex-direction: column;
}

.answer-meta .user-name {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 14px;
}

.answer-meta .answer-time {
    font-size: 12px;
    color: var(--text-light);
}

.answer-content {
    margin-bottom: 12px;
}

.answer-content p {
    font-size: 14px;
    line-height: 1.6;
    color: var(--text-secondary);
    margin: 0;
}

.answer-actions {
    display: flex;
    gap: 24px;
    font-size: 13px;
}

.answer-actions .vote-up {
    color: var(--text-light);
    cursor: pointer;
    transition: color 0.3s ease;
}

.answer-actions .vote-up:hover {
    color: var(--primary-color);
}

.answer-actions .reply {
    color: var(--text-light);
    cursor: pointer;
    transition: color 0.3s ease;
}

.answer-actions .reply:hover {
    color: var(--primary-color);
    text-decoration: underline;
}

/* 右侧边栏 */
.sidebar {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

/* 下载板块 */
.download-section {
    background-color: var(--background-primary);
    border-radius: var(--border-radius);
    padding: 2rem;
    box-shadow: var(--shadow-light);
    text-align: center;
    border: 2px solid var(--background-accent);
}

.download-section h4 {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.download-section p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.download-section .downlbtnvmmn {
    margin-bottom: 1.5rem;
    width: 100%;
}

.download-stats {
    display: flex;
    justify-content: space-around;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-color);
}

/* 提问板块 */
.ask-question-section {
    background-color: var(--background-primary);
    border-radius: var(--border-radius);
    padding: 2rem;
    box-shadow: var(--shadow-light);
    border: 2px solid var(--background-accent);
}

.ask-question-section h4 {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.8rem;
}

.ask-question-section p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.question-form {
    display: flex;
    flex-direction: column;
    gap: 1.2rem;
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group input,
.form-group textarea,
.form-group select {
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    font-family: inherit;
    font-size: 1rem;
    transition: var(--transition);
    background-color: var(--background-primary);
    width: 100%;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(74, 108, 247, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

.question-form button {
    margin-top: 0.5rem;
    width: 100%;
}

/* 响应式设计 - 提问社区 */
@media (max-width: 992px) {
    .questions-container {
        flex-direction: column;
    }
    
    .questions-list {
        order: 2;
    }
    
    .sidebar {
        order: 1;
        flex-direction: row;
        gap: 1.5rem;
    }
    
    .download-section,
    .ask-question-section {
        flex: 1;
    }
}

@media (max-width: 768px) {
    .questions-section {
        padding: 6rem 0;
    }
    
    .sidebar {
        flex-direction: column;
    }
    
    .question-content h4 {
        font-size: 1.1rem;
    }
    
    .question-description {
        -webkit-line-clamp: 2;
    }
    
    .question-stats {
        gap: 1rem;
        font-size: 0.85rem;
    }
    
    .download-section,
    .ask-question-section {
        padding: 1.5rem;
    }
}

@media (max-width: 480px) {
    .questions-section {
        padding: 4rem 0;
    }
    
    .question-item {
        padding: 1.2rem;
    }
    
    .user-avatar {
        width: 40px;
        height: 40px;
    }
    
    .user-avatar svg {
        width: 20px;
        height: 20px;
    }
    
    .question-content h4 {
        font-size: 1rem;
    }
    
    .download-section .downlbtnvmmn,
    .question-form button {
        padding: 12px 20px;
        font-size: 1rem;
    }
}

/* 客户评价 */
.testimonials {
    padding: 8rem 0;
    background-color: var(--background-primary);
}

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

.testimonial-card {
    background-color: var(--background-secondary);
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-light);
    transition: var(--transition);
    position: relative;
}

.testimonial-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-medium);
}

.testimonial-card::before {
    content: '"';
    position: absolute;
    top: -10px;
    left: 20px;
    font-size: 5rem;
    color: rgba(74, 108, 247, 0.1);
    font-weight: bold;
}

.user-info {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.user-avatar {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background-color: var(--background-accent);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
}

.user-details h5 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.2rem;
}

.user-details p {
    font-size: 0.9rem;
    color: var(--text-light);
}

.testimonial-text {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.7;
    position: relative;
    z-index: 1;
}

.rating {
    color: var(--warning-color);
    font-size: 1.2rem;
}

/* CTA区域 */
.cta {
    padding: 8rem 0;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: white;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.cta-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
    margin: 0 auto;
}

.cta-content h3 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
}

.cta-content p {
    font-size: 1.2rem;
    margin-bottom: 2.5rem;
    opacity: 0.9;
}

/* 页脚 */
.footer {
    background-color: var(--text-primary);
    color: white;
    padding: 6rem 0 2rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 3rem;
    margin-bottom: 4rem;
}

.footer-column h5 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    color: white;
}

.footer-logo h2 {
    font-size: 1.8rem;
    font-weight: 700;
    color: white;
    margin-bottom: 1rem;
}

.footer-column p {
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 1.5rem;
}

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

.social-links a {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    transition: var(--transition);
}

.social-links a:hover {
    background-color: var(--primary-color);
    transform: translateY(-3px);
}

.footer-column ul {
    list-style: none;
}

.footer-column ul li {
    margin-bottom: 0.8rem;
}

.footer-column ul li a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: var(--transition);
}

.footer-column ul li a:hover {
    color: white;
    padding-left: 5px;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    flex-wrap: wrap;
    gap: 1rem;
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.7);
}

.footer-links {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: var(--transition);
}

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

/* 页面标题 */
.page-header {
    padding: 14rem 0 4rem;
    background: linear-gradient(135deg, var(--background-accent) 0%, var(--background-secondary) 100%);
    text-align: center;
}

.page-header h2 {
    font-size: 2.8rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.page-header p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* 搜索区域 */
.search-section {
    padding: 3rem 0;
    background-color: var(--background-primary);
}

.search-box {
    max-width: 600px;
    margin: 0 auto;
    display: flex;
    position: relative;
}

.search-box input {
    width: 100%;
    padding: 1rem 2rem;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    font-size: 1rem;
    transition: var(--transition);
}

.search-box input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(74, 108, 247, 0.1);
}

.search-btn {
    position: absolute;
    right: 10px;
    top: 50%;
    transform: translateY(-50%);
    background-color: var(--primary-color);
    color: white;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* FAQ分类 */
.faq-categories {
    padding: 2rem 0;
    background-color: var(--background-primary);
}

.category-tabs {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 2rem;
}

.category-tab {
    padding: 0.8rem 1.5rem;
    background-color: var(--background-secondary);
    color: var(--text-secondary);
    border-radius: var(--border-radius);
    font-weight: 500;
    transition: var(--transition);
}

.category-tab:hover,
.category-tab.active {
    background-color: var(--primary-color);
    color: white;
}

/* FAQ区域 */
.faq-section {
    padding: 2rem 0 6rem;
    background-color: var(--background-primary);
}

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

.faq-item {
    margin-bottom: 1.5rem;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-light);
    background-color: var(--background-secondary);
}

.faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 2rem;
    cursor: pointer;
    background-color: var(--background-secondary);
    transition: var(--transition);
}

.faq-question:hover {
    background-color: rgba(74, 108, 247, 0.05);
}

.faq-question h3 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    flex: 1;
    margin-right: 1rem;
}

.faq-toggle {
    background: none;
    border: none;
    color: var(--primary-color);
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: var(--transition);
}

.faq-toggle:hover {
    background-color: rgba(74, 108, 247, 0.1);
}

.faq-toggle.active {
    transform: rotate(180deg);
}

.faq-answer {
    padding: 0 2rem;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, padding 0.3s ease;
    color: var(--text-secondary);
}

.faq-answer.active {
    max-height: 1000px;
    padding: 0 2rem 1.5rem;
}

.faq-answer p {
    margin-bottom: 1rem;
    line-height: 1.7;
}

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

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

.faq-answer mark {
    background-color: rgba(243, 156, 18, 0.2);
    color: var(--text-primary);
    padding: 0.1rem 0.3rem;
    border-radius: 3px;
}

/* 更多帮助 */
.more-help {
    padding: 6rem 0;
    background-color: var(--background-accent);
    text-align: center;
}

.help-content h3 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.help-content p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    max-width: 600px;
    margin: 0 auto 2rem;
}

/* 联系区域 */
.contact-section {
    padding: 6rem 0;
    background-color: var(--background-primary);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: start;
}

.contact-form {
    background-color: var(--background-secondary);
    padding: 2.5rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-light);
}

.contact-form h3 {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 2rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text-primary);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 1rem;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-family: inherit;
    transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(74, 108, 247, 0.1);
}

.form-group.checkbox {
    display: flex;
    align-items: flex-start;
    gap: 0.8rem;
}

.form-group.checkbox input {
    width: auto;
    margin-top: 0.3rem;
}

.form-group.checkbox label {
    margin-bottom: 0;
    flex: 1;
    font-weight: 400;
}

.contact-info {
    background-color: var(--background-secondary);
    padding: 2.5rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-light);
}

.contact-info h3 {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 2rem;
}

.info-items {
    margin-bottom: 3rem;
}

.info-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.info-icon {
    width: 48px;
    height: 48px;
    background-color: var(--background-accent);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    flex-shrink: 0;
}

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

.social-section {
    margin-bottom: 3rem;
}

.social-section h4 {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

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

.social-link {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--background-accent);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    transition: var(--transition);
    text-decoration: none;
}

.social-link:hover {
    background-color: var(--primary-color);
    color: white;
    transform: translateY(-3px);
}

.map-section h4 {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.map-placeholder {
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-light);
}

/* FAQ链接区域 */
.faq-link {
    padding: 6rem 0;
    background-color: var(--background-accent);
    text-align: center;
}

.faq-link-content h3 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.faq-link-content p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    max-width: 600px;
    margin: 0 auto 2rem;
}

/* 动画效果 */
@keyframes float {
    0% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-20px);
    }
    100% {
        transform: translateY(0px);
    }
}

/* 滚动条样式 */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--background-secondary);
}

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-light);
}

/* 响应式调整 */
@media (max-width: 1024px) {
    .hero-content {
        gap: 2rem;
    }
    
    .hero-text h2 {
        font-size: 3rem;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}

@media (max-width: 768px) {
    .navbar .container {
        flex-wrap: wrap;
    }
    
    .nav-links {
        position: fixed;
        top: 80px;
        left: 0;
        width: 100%;
        flex-direction: column;
        align-items: center;
        background-color: var(--background-primary);
        padding: 2rem;
        box-shadow: var(--shadow-medium);
        gap: 1.5rem;
        transform: translateY(-150%);
        opacity: 0;
        transition: var(--transition);
        z-index: 999;
    }
    
    .nav-links.active {
        transform: translateY(0);
        opacity: 1;
    }
    
    .menu-toggle {
        display: flex;
    }
    
    .menu-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    
    .menu-toggle.active span:nth-child(2) {
        opacity: 0;
    }
    
    .menu-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -7px);
    }
    
    .nav-actions {
        display: none;
    }
    
    .hero-content {
        flex-direction: column;
        text-align: center;
    }
    
    .hero-text h2 {
        font-size: 2.5rem;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .hero-stats {
        justify-content: center;
    }
    
    .section-header h3 {
        font-size: 2rem;
    }
    
    .page-header h2 {
        font-size: 2.2rem;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
        gap: 1rem;
    }
    
    .pricing-card.popular {
        transform: scale(1);
    }
}

@media (max-width: 480px) {
    .hero-text h2 {
        font-size: 2rem;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: 1rem;
    }
    
    .section-header h3 {
        font-size: 1.8rem;
    }
    
    .page-header h2 {
        font-size: 1.8rem;
    }
    
    .contact-form,
    .contact-info {
        padding: 1.5rem;
    }
    
    .cta-content h3 {
        font-size: 2rem;
    }
}

/* 无障碍访问 */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* 焦点样式 */
button:focus,
input:focus,
select:focus,
textarea:focus,
.a:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* 图片优化 */
img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* 卡片阴影效果 */
.card-shadow {
    box-shadow: var(--shadow-light);
    transition: var(--transition);
}

.card-shadow:hover {
    box-shadow: var(--shadow-heavy);
}

/* 渐变背景 */
.gradient-bg {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
}

/* 玻璃态效果 */
.glass-effect {
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.18);
}

/* 暗色模式支持 */
@media (prefers-color-scheme: dark) {
    :root {
        --text-primary: #ffffff;
        --text-secondary: #e2e8f0;
        --text-light: #a0aec0;
        --background-primary: #1a202c;
        --background-secondary: #2d3748;
        --background-accent: #1e293b;
        --border-color: #4a5568;
    }
}

/* 加载动画 */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(74, 108, 247, 0.3);
    border-radius: 50%;
    border-top-color: var(--primary-color);
    animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* 工具提示 */
.tooltip {
    position: relative;
    display: inline-block;
}

.tooltip:hover::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 125%;
    left: 50%;
    transform: translateX(-50%);
    background-color: var(--text-primary);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius);
    font-size: 0.9rem;
    white-space: nowrap;
    z-index: 1000;
}

/* 网格布局 */
.grid {
    display: grid;
    gap: 1.5rem;
}

.grid-cols-2 {
    grid-template-columns: repeat(2, 1fr);
}

.grid-cols-3 {
    grid-template-columns: repeat(3, 1fr);
}

/* 标签样式 */
.tag {
    display: inline-block;
    padding: 0.3rem 0.8rem;
    background-color: var(--background-accent);
    color: var(--primary-color);
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 500;
}

/* 徽章样式 */
.badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 20px;
    height: 20px;
    padding: 0 6px;
    background-color: var(--error-color);
    color: white;
    border-radius: 10px;
    font-size: 0.7rem;
    font-weight: 600;
}

/* 进度条 */
.progress-bar {
    width: 100%;
    height: 8px;
    background-color: var(--border-color);
    border-radius: 4px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background-color: var(--primary-color);
    border-radius: 4px;
    transition: width 0.3s ease;
}

/* 通知样式 */
.notification {
    padding: 1rem;
    border-radius: var(--border-radius);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.notification.success {
    background-color: rgba(46, 204, 113, 0.1);
    color: var(--success-color);
    border-left: 4px solid var(--success-color);
}

.notification.error {
    background-color: rgba(231, 76, 60, 0.1);
    color: var(--error-color);
    border-left: 4px solid var(--error-color);
}

.notification.warning {
    background-color: rgba(243, 156, 18, 0.1);
    color: var(--warning-color);
    border-left: 4px solid var(--warning-color);
}

/* 打印样式 */
@media print {
    .navbar,
    .footer,
    .cta,
    .pricing,
    .testimonials {
        display: none;
    }
    
    .container {
        width: 100%;
        max-width: 100%;
        padding: 0;
    }
    
    body {
        background-color: white;
        color: black;
    }
}