/* 基础样式定义 */
:root {
    --primary-color: #1890ff;
    --secondary-color: #40a9ff;
    --text-color: #333;
    --light-text: #666;
    --border-color: #e8e8e8;
    --background-color: #fff;
    --section-padding: 60px 0;
    --border-radius: 8px;
    --tech-color: #52c41a;
    --dark-tech: #001529;
    --blue-gradient: linear-gradient(135deg, #40a9ff 0%, #1890ff 100%);
}

/* 全局样式 */
body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    background-color: #f8f8f8;
    color: var(--text-color);
    line-height: 1.6;
}

/* 头部样式 */
.header {
    background-color: var(--background-color);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 98;
}

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

/* Logo样式 */
.logo {
    font-size: 30px;
    font-weight: bold;
    color: var(--primary-color);
    text-shadow: 0 2px 8px rgba(24, 144, 255, 0.3);
    letter-spacing: 1px;
    background: #000;
    /* background: linear-gradient(to right, #0055FF, #FF00FB, #FF311F); */
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-list {
    display: flex;
    list-style: none;
}

.nav-item {
    margin-left: 40px;
    font-size: 16px;
    cursor: pointer;
    position: relative;
}

.nav-link {
    text-decoration: none;
    color: inherit;
    display: inline-block;
    padding: 5px 0;
    position: relative;
    transition: color 0.3s ease;
}

.nav-item.active {
    color: var(--primary-color);
}

.nav-item:hover {
    color: var(--primary-color);
}

.nav-item.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--primary-color);
}

/* 主要内容区域 */
.main-content {
    margin: 0 auto;
}

/* 英雄区域 */
.hero {
    padding: var(--section-padding);
    text-align: center;
    background: linear-gradient(135deg, #f5f7fa 0%, #e6f7ff 100%);
    border-radius: var(--border-radius);
    margin: 40px 20px;
    position: relative;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(24, 144, 255, 0.1);
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(24, 144, 255, 0.1) 0%, transparent 70%);
    animation: float 20s infinite linear;
}

@keyframes float {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.hero-content {
    position: relative;
    z-index: 1;
}

.hero-content h2 {
    font-size: 48px;
    margin-bottom: 20px;
    font-weight: 800;
    letter-spacing: -1px;
    /* background: linear-gradient(135deg, var(--primary-color), var(--tech-color)); */
    background: #000;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: 0 2px 4px rgba(24, 144, 255, 0.3);
}

.hero-content p {
    font-size: 20px;
    line-height: 1.8;
    margin-bottom: 30px;
    color: var(--text-color);
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    text-align: center;
    font-weight: 500;
}

/* 按钮样式 */
.btn-primary {
    background: var(--primary-color);
    color: white;
    border: none;
    padding: 15px 40px;
    font-size: 18px;
    border-radius: 30px;
    cursor: pointer;
    font-weight: bold;
    transition: all 0.3s ease;
    box-shadow: 0 4px 12px rgba(24, 144, 255, 0.3);
}

/* 导航栏开始使用按钮样式 */
.btn-start {
    padding: 10px 25px;
    font-size: 16px;
    margin-left: 20px;
    white-space: nowrap;
    transition: all 0.3s ease;
}

.btn-start:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(24, 144, 255, 0.4);
}

.btn-primary:hover {
    background-color: #40a9ff;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(24, 144, 255, 0.4);
}

.btn-primary:active {
    transform: translateY(0);
    box-shadow: 0 2px 10px rgba(24, 144, 255, 0.3);
}

.btn-secondary {
    background-color: var(--background-color);
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
    padding: 12px 30px;
    font-size: 16px;
    border-radius: 30px;
    cursor: pointer;
    font-weight: bold;
    transition: all 0.3s ease;
}

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

/* 通用区块标题 */
.section-title {
    text-align: center;
    margin-bottom: 40px;
}

.section-title h3 {
    font-size: 28px;
    color: var(--text-color);
    position: relative;
    display: inline-block;
    padding-bottom: 10px;
}

.section-title h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background-color: var(--primary-color);
}

/* 功能介绍区域 */
.features {
    padding: var(--section-padding);
    margin: 0 20px;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.feature-item {
    background-color: var(--background-color);
    padding: 30px;
    border-radius: var(--border-radius);
    text-align: center;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.feature-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.feature-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, transparent, var(--primary-color), transparent);
    transition: left 0.5s ease;
}

.feature-item:hover::before {
    left: 100%;
}

.feature-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}


.feature-icon {
    width: 80px;
    height: 80px;
    border-radius: 16px;
    margin: 0 auto 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(24, 144, 255, 0.3);
}

.feature-item:hover .feature-icon {
    transform: scale(1.1) rotate(5deg);
    box-shadow: 0 6px 20px rgba(24, 144, 255, 0.4);
}

.feature-item:hover .feature-icon i {
     background: linear-gradient(90deg, #ff69b4, #8a2be2); /* 粉色到紫色渐变 */
    -webkit-background-clip: text; /* 只显示文字部分 */
    -webkit-text-fill-color: transparent; /* 文字填充透明，让背景透出来 */
}

.feature-item h4 {
    font-size: 20px;
    margin-bottom: 15px;
    color: var(--text-color);
}

.feature-item p {
    color: var(--light-text);
    font-size: 16px;
}

/* 使用示例区域 */
.demo {
    padding: var(--section-padding);
    background-color: var(--background-color);
    border-radius: var(--border-radius);
    margin: 40px 20px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

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

.input-area {
    margin-bottom: 30px;
    text-align: center;
}

.input-area label {
    display: block;
    font-size: 18px;
    margin-bottom: 15px;
    font-weight: bold;
}

.input-area input {
    width: 100%;
    padding: 15px 20px;
    font-size: 16px;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    margin-bottom: 20px;
    outline: none;
    transition: all 0.3s ease;
    background-color: #fafafa;
}

.input-box input:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(255, 77, 79, 0.1);
    background-color: white;
}

.input-area input:focus {
    border-color: var(--primary-color);
}

.output-area {
    background-color: #fafafa;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 20px;
}

.output-area h4 {
    font-size: 18px;
    margin-bottom: 15px;
    color: var(--light-text);
}

.output-box {
    min-height: 200px;
    background-color: var(--background-color);
    border-radius: 15px;
    padding: 25px;
    border: 1px solid #e0e0e0;
    color: var(--light-text);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.05);
    font-family: 'Courier New', Courier, monospace;
    line-height: 1.6;
    font-size: 15px;
}

.output-box::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, transparent, var(--primary-color), transparent);
    animation: gradientMove 3s infinite;
}

@keyframes gradientMove {
    0% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
}

/* 视频与特性介绍区域 */
.video-features {
    padding: calc(var(--section-padding) / 1.5); /* 减少内边距 */
    margin: 30px auto 30px auto; /* 减少外边距 */
    max-width: 1200px;

}

.video-container {
    max-width: 1200px;
    margin: 0 auto 30px;
    background-color: #000;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: 0 6px 25px rgba(24, 144, 255, 0.2);
    border: 2px solid rgba(24, 144, 255, 0.3);
}

.video-container video {
    display: block;
    width: 100%;
    height: auto;
    filter: contrast(1.1);
}

.video-features-title {
    text-align: center;
    margin-bottom: 40px; /* 减少底部外边距 */
}

.video-features-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px; /* 减少间距 */
    align-items: center;
}

.features-list {
    display: flex;
    flex-direction: column;
    gap: 20px; /* 减少item间距 */
}

.features-list .feature-item {
    display: flex;
    align-items: flex-start;
    gap: 15px; /* 减少图标与文字间距 */
    text-align: left;
    padding: 15px; /* 减少内边距 */
    background: #fff;
    border-radius: var(--border-radius);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    color: white;
}

.features-list .feature-item:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
}

.features-list .feature-icon {
    width: 50px; /* 减小图标大小 */
    height: 50px;
    margin: 0;
    flex-shrink: 0;
}

.features-list .feature-icon i {
    font-size: 24px; /* 减小图标字体大小 */
    color: var(--primary-color);
}

.features-list .feature-text h4 {
    font-size: 17px; /* 减小标题字体大小 */
    margin-bottom: 8px; /* 减少底部间距 */
    color: var(--text-color);
}

.features-list .feature-text p {
    color: var(--light-text);
    font-size: 14px; /* 减小正文字体大小 */
    line-height: 1.6; /* 略微减小行高 */
    margin: 0;
}

.tech-image {
    background-color: var(--background-color);
    border-radius: var(--border-radius);
    padding: 15px; /* 减少内边距 */
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    aspect-ratio: 1 / 1; /* 设置宽高比为1:1，实现正方形 */
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.tech-image img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover; /* 确保图片充满容器并保持比例 */
    border-radius: var(--border-radius);
}

/* 关于我们区域 */
.about {
    padding: var(--section-padding);
    margin: 0 20px;
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
}

.about-text h4 {
    font-size: 22px;
    margin-bottom: 15px;
    color: var(--primary-color);
}

.about-text p {
    font-size: 16px;
    line-height: 1.8;
    margin-bottom: 25px;
    color: var(--text-color);
}

.about-image {
    background-color: var(--background-color);
    border-radius: var(--border-radius);
    padding: 20px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.about-image img {
    max-width: 100%;
    height: auto;
    border-radius: var(--border-radius);
    display: block;
}

/* 常见问题区域 */
.faq {
    padding: var(--section-padding);
    margin: 0 20px;
}

.faq-content {
    max-width: 900px;
    margin: 0 auto;
}

.faq-item {
    background-color: var(--background-color);
    border-radius: var(--border-radius);
    margin-bottom: 20px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    overflow: hidden;
}

.faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 25px;
    cursor: pointer;
    background-color: var(--background-color);
    transition: background-color 0.3s ease;
}

.faq-question:hover {
    background-color: var(--secondary-color);
}

.faq-question h4 {
    font-size: 18px;
    color: var(--text-color);
    margin: 0;
}

.faq-toggle {
    color: var(--primary-color);
    font-size: 14px;
    transition: transform 0.3s ease;
}

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

.faq-answer {
    padding: 0 25px;
    max-height: 0;
    overflow: hidden;
    transition: all 0.3s ease;
    background-color: #fafafa;
}

.faq-answer.active {
    padding: 25px;
    max-height: 200px;
}

.faq-answer p {
    font-size: 16px;
    line-height: 1.8;
    color: var(--light-text);
    margin: 0;
}

/* 用户评价区域 */
.testimonials {
    padding: var(--section-padding);
    margin: 0 20px;
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.testimonial-item {
    background-color: var(--background-color);
    padding: 30px;
    border-radius: var(--border-radius);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    position: relative;
}

.testimonial-text {
    font-size: 16px;
    line-height: 1.8;
    margin-bottom: 20px;
    color: var(--text-color);
}

.testimonial-text::before {
    content: '"';
    font-size: 48px;
    color: var(--secondary-color);
    position: absolute;
    top: 10px;
    left: 10px;
    opacity: 0.5;
}

.testimonial-author {
    font-size: 14px;
    color: var(--light-text);
    text-align: right;
    font-style: italic;
}

/* 页脚样式 */
.footer {
    padding: 60px 0 30px;
    margin-top: 60px;
    position: relative;
    overflow: hidden;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    animation: gradientMove 3s infinite;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    position: relative;
    z-index: 1;
}

.footer p {
    margin-bottom: 20px;
    color: rgba(255, 255, 255, 0.8);
    font-size: 14px;
}

.footer p.copyright {
    font-weight: bold;
    color: var(--primary-color);
    text-shadow: 0 0 10px rgba(24, 144, 255, 0.5);
}

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    margin: 0 15px;
    transition: all 0.3s ease;
    position: relative;
}

.footer-links a::after {
    content: '';
    position: absolute;
    bottom: -3px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: width 0.3s ease;
}

.footer-links a:hover {
    color: var(--primary-color);
    text-shadow: 0 0 10px rgba(24, 144, 255, 0.5);
}

.footer-links a:hover::after {
    width: 100%;
}
 /* 登录模态框样式 */
.login-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 99;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.login-modal.active {
    opacity: 1;
    visibility: visible;
}

.modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(5px);
    cursor: pointer;
}

.modal-content {
    position: relative;
    background: linear-gradient(135deg, #001529 0%, #093559 100%);
    border-radius: 12px;
    box-shadow: 0 20px 60px rgba(24, 144, 255, 0.3);
    width: 90%;
    max-width: 420px;
    overflow: hidden;
    transform: translateY(-50px);
    transition: transform 0.3s ease;
    border: 1px solid rgba(24, 144, 255, 0.2);
}

.login-modal.active .modal-content {
    transform: translateY(0);
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 24px 30px;
    border-bottom: 1px solid rgba(24, 144, 255, 0.2);
}

.modal-title {
    color: #fff;
    font-size: 24px;
    font-weight: 600;
    margin: 0;
}

.modal-close {
    background: none;
    border: none;
    color: rgba(255, 255, 255, 0.6);
    font-size: 32px;
    cursor: pointer;
    padding: 0;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 4px;
    transition: all 0.2s ease;
}

.modal-close:hover {
    background: rgba(24, 144, 255, 0.2);
    color: #1890ff;
}

.modal-body {
    padding: 30px;
}

.login-tabs {
    display: flex;
    margin-bottom: 24px;
    border-bottom: 1px solid rgba(24, 144, 255, 0.2);
}

.login-tab {
    background: none;
    border: none;
    color: rgba(255, 255, 255, 0.6);
    font-size: 16px;
    font-weight: 500;
    padding: 8px 16px 12px;
    cursor: pointer;
    border-bottom: 2px solid transparent;
    transition: all 0.2s ease;
    flex: 1;
    text-align: center;
}

.login-tab.active {
    color: #1890ff;
    border-bottom-color: #1890ff;
}

.login-tab:hover {
    color: #1890ff;
}

.login-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    color: rgba(255, 255, 255, 0.8);
    font-size: 14px;
    font-weight: 500;
}

.form-group input {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(24, 144, 255, 0.3);
    border-radius: 8px;
    color: #fff;
    font-size: 16px;
    padding: 12px 16px;
    transition: all 0.2s ease;
    backdrop-filter: blur(10px);
}

.form-group input:focus {
    outline: none;
    border-color: #1890ff;
    box-shadow: 0 0 0 3px rgba(24, 144, 255, 0.2);
    background: rgba(255, 255, 255, 0.15);
}

.form-group input::placeholder {
    color: rgba(255, 255, 255, 0.4);
}

.form-options {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 14px;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 8px;
    color: rgba(255, 255, 255, 0.6);
    cursor: pointer;
}

.checkbox-label input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: #1890ff;
}

.forgot-password {
    color: #1890ff;
    text-decoration: none;
    transition: color 0.2s ease;
}

.forgot-password:hover {
    color: #40a9ff;
}

.login-form .btn-primary {
    width: 100%;
    padding: 12px;
    font-size: 16px;
    font-weight: 500;
    border-radius: 8px;
    margin-top: 8px;
}

.divider {
    display: flex;
    align-items: center;
    gap: 16px;
    margin: 24px 0;
}

.divider::before,
.divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: rgba(24, 144, 255, 0.2);
}

.divider span {
    color: rgba(255, 255, 255, 0.6);
    font-size: 14px;
}

.social-login {
    display: flex;
    gap: 16px;
}

.social-btn {
    flex: 1;
    padding: 12px;
    border: 1px solid rgba(24, 144, 255, 0.3);
    background: rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.8);
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
}

.social-btn:hover {
    background: rgba(24, 144, 255, 0.2);
    border-color: #1890ff;
    color: #1890ff;
}

.social-btn.wechat:hover {
    background: rgba(82, 196, 26, 0.2);
    border-color: #52c41a;
    color: #52c41a;
}

/* 验证码登录表单样式 */
.login-form {
    display: none;
}

.login-form.active {
    display: flex;
}

.sms-code-container {
    display: flex;
    gap: 12px;
    align-items: stretch;
}

.sms-code-container input {
    flex: 1;
}

.get-sms-code {
    padding: 12px 20px;
    background: rgba(24, 144, 255, 0.2);
    border: 1px solid rgba(24, 144, 255, 0.3);
    color: #1890ff;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    white-space: nowrap;
}

.get-sms-code:hover {
    background: rgba(24, 144, 255, 0.3);
    border-color: #1890ff;
}

.get-sms-code:disabled {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.3);
    color: rgba(255, 255, 255, 0.5);
    cursor: not-allowed;
}

/* 移动端响应式设计 */
@media (max-width: 768px) {
    /* 视频与特性介绍区域响应式 */
    .video-features {
        margin: 20px 15px;
        padding: 40px 0;
    }
    
    .video-features-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .features-list .feature-item {
        padding: 15px;
    }
    
    .features-list .feature-icon {
        width: 50px;
        height: 50px;
    }
    
    .features-list .feature-icon i {
        font-size: 24px;
    }
    
    .tech-image {
        padding: 15px;
    }
    
    /* 头部响应式 */
    .header-content {
        padding: 15px;
    }
    
    .logo {
        font-size: 24px;
    }
    
    .nav-list {
        position: fixed;
        top: 60px;
        left: 0;
        width: 100%;
        background-color: var(--background-color);
        flex-direction: column;
        align-items: center;
        padding: 20px 0;
        box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
        transform: translateY(-150%);
        transition: transform 0.3s ease;
        z-index: 999;
    }
    
    .nav-list.active {
        transform: translateY(0);
    }
    
    .nav-item {
        margin: 15px 0;
        font-size: 18px;
    }
    
    /* 汉堡菜单按钮 */
    .menu-toggle {
        display: block;
        width: 30px;
        height: 30px;
        position: absolute;
        right: 90px;
        top: 30px;
        cursor: pointer;
    }
    
    /* 移动端开始使用按钮样式 */
    .btn-start {
        position: absolute;
        right: 20px;
        top: 25px;
        padding: 8px 20px;
        font-size: 14px;
        margin-left: 0;
    }
    
    /* 小屏幕设备额外调整 */
   

/* 响应式设计 */
@media (max-width: 480px) {
        .btn-start {
            display: none;
        }
        
        .menu-toggle {
            right: 20px;
        }
    }
    
    .menu-toggle span {
        display: block;
        position: absolute;
        height: 3px;
        width: 100%;
        background-color: var(--primary-color);
        border-radius: 3px;
        transition: all 0.3s ease;
    }
    
    .menu-toggle span:nth-child(1) {
        top: 3px;
    }
    
    .menu-toggle span:nth-child(2) {
        top: 13px;
    }
    
    .menu-toggle span:nth-child(3) {
        bottom: 3px;
    }
    
    /* 汉堡菜单动画效果 */
    .menu-toggle span.rotate1 {
        transform: rotate(45deg);
        top: 13px;
    }
    
    .menu-toggle span.hide {
        opacity: 0;
    }
    
    .menu-toggle span.rotate2 {
        transform: rotate(-45deg);
        top: 13px;
    }
    
    /* 英雄区域响应式 */
    .hero {
        margin: 20px 15px;
        padding: 40px 15px;
    }
    
    .hero-content h2 {
        font-size: 28px;
    }
    
    .hero-content p {
        font-size: 16px;
    }
    
    .btn-primary {
        padding: 12px 30px;
        font-size: 16px;
    }
    
    /* 功能介绍区域响应式 */
    .features {
        padding: 40px 0;
        margin: 0 15px;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .feature-item {
        padding: 25px 20px;
    }
    
    /* 使用示例区域响应式 */
    .demo {
        margin: 20px 15px;
        padding: 40px 15px;
    }
    
    .input-area input {
        padding: 12px 15px;
        font-size: 16px;
    }
    
    .btn-secondary {
        padding: 10px 25px;
        font-size: 15px;
    }
    
    /* 关于我们区域响应式 */
    .about {
        padding: 40px 0;
        margin: 0 15px;
    }
    
    .about-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .about-text h4 {
        font-size: 20px;
    }
    
    .about-text p {
        font-size: 15px;
    }
    
    .about-image {
        padding: 15px;
    }
    
    /* 常见问题区域响应式 */
    .faq {
        padding: 40px 0;
        margin: 0 15px;
    }
    
    .faq-question {
        padding: 15px 20px;
    }
    
    .faq-question h4 {
        font-size: 16px;
    }
    
    .faq-answer.active {
        padding: 20px;
        max-height: 300px;
    }
    
    .faq-answer p {
        font-size: 15px;
    }
    
    /* 用户评价区域响应式 */
    .testimonials {
        padding: 40px 0;
        margin: 0 15px;
    }
    
    .testimonials-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .testimonial-item {
        padding: 25px 20px;
    }
    
    /* 页脚响应式 */
    .footer {
        padding: 30px 0;
    }
    
    .footer-content {
        padding: 0 15px;
    }
    
    .footer-links {
        display: flex;
        flex-direction: column;
        gap: 10px;
    }
    
    .footer-links a {
        margin: 5px 0;
    }
}

@media (max-width: 480px) {
    /* 更小屏幕的优化 */
    .hero-content h2 {
        font-size: 24px;
    }
    
    .hero-content p {
        font-size: 14px;
    }
    
    .section-title h3 {
        font-size: 24px;
    }
    
    .feature-icon {
        width: 60px;
        height: 60px;
    }
    
    .feature-item h4 {
        font-size: 18px;
    }
}