/* 全局样式 */
:root {
    --primary-color: #6a11cb;
    --secondary-color: #2575fc;
    --accent-color: #ff7eb3;
    --text-color: #333;
    --light-text: #fff;
    --dark-bg: #1a1a2e;
    --light-bg: #f8f9fa;
    --border-radius: 8px;
    --box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

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

body {
    font-family: 'Noto Sans SC', sans-serif;
    color: var(--text-color);
    line-height: 1.6;
    overflow-x: hidden;
    background-color: var(--light-bg);
    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='%23f0f0f0' fill-opacity='0.4'%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");
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
}

.btn {
    display: inline-block;
    padding: 12px 24px;
    border-radius: var(--border-radius);
    font-weight: 500;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.btn.primary {
    background: linear-gradient(135deg, #5a4fcf, #3b82f6); /* 更柔和的蓝紫色渐变 */
    color: #ffffff;
    border: none;
    font-weight: 500; /* 减轻字体粗细 */
    text-shadow: none; /* 移除文字阴影 */
    letter-spacing: 0.5px; /* 增加字母间距提高可读性 */
}

.btn.primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #3b82f6, #5a4fcf); /* 反向渐变效果 */
    transition: var(--transition);
    z-index: -1;
}

.btn.primary:hover::before {
    left: 0;
}

.btn.primary:hover {
    transform: translateY(-2px); /* 减小悬停时的上移距离 */
    box-shadow: 0 6px 12px rgba(90, 79, 207, 0.25); /* 更柔和的阴影 */
}

.btn.secondary {
    background-color: rgba(255, 255, 255, 0.9); /* 稍微透明的白色背景 */
    color: #5a4fcf; /* 与主按钮颜色协调 */
    border: 1px solid #5a4fcf; /* 更细的边框 */
    font-weight: 500; /* 减轻字体粗细 */
}

.btn.secondary:hover {
    background-color: rgba(90, 79, 207, 0.08); /* 悬停时的背景色更柔和 */
    color: #4a3fbf; /* 悬停时更深的文字颜色 */
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(90, 79, 207, 0.15);
}

.btn.outline {
    background-color: transparent;
    color: var(--text-color);
    border: 1px solid currentColor;
}

.btn.outline:hover {
    background-color: var(--text-color);
    color: var(--light-text);
}

.section-header {
    text-align: center;
    margin-bottom: 50px;
}

.section-header h2 {
    font-size: 2.5rem;
    margin-bottom: 15px;
    font-family: 'Noto Serif SC', serif;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    display: inline-block;
}

.section-header p {
    font-size: 1.1rem;
    color: #666;
}

/* 导航栏样式 */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 5%;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    transition: var(--transition);
    background-color: rgba(255, 255, 255, 0.95);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.navbar.scrolled {
    padding: 15px 5%;
    background-color: rgba(255, 255, 255, 0.98);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.logo a {
    font-size: 1.8rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.nav-menu {
    display: flex;
    align-items: center;
}

.nav-menu li {
    margin: 0 15px;
}

.nav-menu a {
    font-size: 1rem;
    font-weight: 500;
    position: relative;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    transition: var(--transition);
}

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

.language-switch {
    display: flex;
    align-items: center;
}

.language-switch a {
    margin-left: 10px;
    font-size: 0.9rem;
    opacity: 0.7;
}

.language-switch a.active {
    opacity: 1;
    font-weight: 500;
}

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

.nav-toggle span {
    width: 25px;
    height: 3px;
    background-color: var(--primary-color);
    margin: 2px 0;
    transition: var(--transition);
}

/* 英雄区域样式 */
.hero {
    height: 500px;
    background: linear-gradient(rgba(0, 0, 0, 0.5), rgba(0, 0, 0, 0.5)), url('../images/hero-bg.svg') center/cover no-repeat;
    display: flex;
    align-items: center;
    text-align: center;
    color: var(--light-text);
    padding-top: 80px;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(106, 17, 203, 0.7), rgba(37, 117, 252, 0.7));
    z-index: 1;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: -50px;
    left: 0;
    width: 100%;
    height: 100px;
    background: #fff;
    transform: skewY(-3deg);
    z-index: 2;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 20px;
    position: relative;
    z-index: 3;
    animation: fadeInUp 1s ease-out;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 20px;
    font-family: 'Noto Serif SC', serif;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.hero p {
    font-size: 1.3rem;
    margin-bottom: 30px;
    text-shadow: 0 2px 5px rgba(0, 0, 0, 0.3);
}

.hero-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
}

/* 介绍部分样式 */
.intro {
    padding: 100px 0;
    background-color: #fff;
}

.intro-content {
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    gap: 50px;
}

.intro-text {
    flex: 1;
    max-width: 600px;
    font-size: 1.1rem;
    line-height: 1.8;
}

.intro-image {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
}

.intro-image img {
    max-width: 100%;
    height: auto;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.intro-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
    justify-content: center;
    flex-wrap: wrap;
    gap: 30px;
}

.feature-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1rem;
    border-radius: 8px;
    transition: all 0.3s ease;
    background-color: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.feature-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
    background-color: rgba(255, 255, 255, 0.1);
}

.floating-elements {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.floating-element {
    position: absolute;
    font-size: 1.5rem;
    animation: float 6s infinite ease-in-out;
}

.element-1 {
    top: 10%;
    left: 10%;
    animation-delay: 0s;
}

.element-2 {
    top: 20%;
    right: 15%;
    animation-delay: 1.5s;
}

.element-3 {
    bottom: 15%;
    left: 20%;
    animation-delay: 3s;
}

.element-4 {
    bottom: 25%;
    right: 10%;
    animation-delay: 4.5s;
}

@keyframes float {
    0% {
        transform: translateY(0) rotate(0deg);
    }
    50% {
        transform: translateY(-15px) rotate(5deg);
    }
    100% {
        transform: translateY(0) rotate(0deg);
    }
}

.feature {
    flex: 1;
    min-width: 250px;
    max-width: 350px;
    padding: 30px;
    border-radius: var(--border-radius);
    background-color: #fff;
    box-shadow: var(--box-shadow);
    text-align: center;
    transition: var(--transition);
}

.feature:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
}

.feature-icon {
    width: 70px;
    height: 70px;
    margin: 0 auto 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--light-text);
    font-size: 1.8rem;
    aspect-ratio: 1 / 1; /* 确保宽高比始终为1:1 */
}

.feature h3 {
    margin-bottom: 15px;
    font-size: 1.3rem;
}

/* 产品部分样式 */
.products {
    padding: 100px 0;
    background-color: var(--light-bg);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.product-card {
    background-color: #fff;
    border-radius: var(--border-radius);
    padding: 30px;
    text-align: center;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    position: relative;
    border: 1px solid rgba(106, 17, 203, 0.1);
    display: flex;
    flex-direction: column;
    align-items: center;
}

.product-card::before {
    content: '';
    position: absolute;
    top: -10px;
    right: -10px;
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--accent-color), var(--secondary-color));
    opacity: 0.1;
    border-radius: 50%;
    z-index: 0;
    transition: var(--transition);
}

.product-card:hover::before {
    transform: scale(5);
    opacity: 0.05;
    animation: shine 1.5s infinite;
}

@keyframes shine {
    0% {
        top: -10px;
        right: -10px;
    }
    100% {
        top: 100%;
        right: 100%;
    }
}

.product-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
    border-color: var(--accent-color);
}

.product-icon {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    color: #fff;
    font-size: 2rem;
}

.product-badge {
    position: absolute;
    top: 20px;
    right: 20px;
    background: linear-gradient(135deg, var(--accent-color), var(--secondary-color));
    color: #fff;
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
}

.product-features {
    margin: 20px 0;
    text-align: left;
}

.product-features li {
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.product-features li i {
    color: var(--accent-color);
}

.product-image {
    height: 250px;
    overflow: hidden;
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.product-card:hover .product-image img {
    transform: scale(1.05);
}

.product-info {
    padding: 30px;
    text-align: center;
}

.product-info h3 {
    margin-bottom: 15px;
    font-size: 1.5rem;
}

.product-info p {
    margin-bottom: 20px;
    color: #666;
}

/* 用户反馈部分样式 */
.testimonials {
    padding: 100px 0;
    background-color: #fff;
}

.testimonials-slider {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.testimonial-card {
    padding: 30px;
    border-radius: var(--border-radius);
    background-color: #fff;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    position: relative;
    border: 1px solid rgba(106, 17, 203, 0.1);
    text-align: center;
}

.testimonial-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
    border-color: var(--accent-color);
}

.testimonial-avatar {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    overflow: hidden;
    margin: 0 auto 20px;
    border: 3px solid var(--accent-color);
    box-shadow: 0 5px 15px rgba(255, 126, 179, 0.3);
}

.testimonial-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.testimonial-card:hover .testimonial-avatar img {
    transform: scale(1.1);
}

.testimonial-rating {
    margin-bottom: 15px;
    color: #FFD700;
    font-size: 1.2rem;
}

.testimonial-text {
    margin-bottom: 20px;
    position: relative;
    z-index: 1;
}

.testimonial-text p {
    font-style: italic;
    line-height: 1.8;
    color: #666;
}

.testimonial-author {
    display: flex;
    align-items: center;
}

.author-avatar {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    overflow: hidden;
    margin-right: 15px;
    border: 3px solid var(--accent-color);
    box-shadow: 0 5px 15px rgba(255, 126, 179, 0.3);
}

.author-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.testimonial:hover .author-avatar img {
    transform: scale(1.1);
}

.author-info h4 {
    font-size: 1.1rem;
    margin-bottom: 5px;
    color: var(--primary-color);
}

.author-info p {
    font-size: 0.9rem;
    color: #666;
}

/* 行动召唤部分样式 */
.cta {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--light-text);
    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='100' height='100' viewBox='0 0 100 100' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M11 18c3.866 0 7-3.134 7-7s-3.134-7-7-7-7 3.134-7 7 3.134 7 7 7zm48 25c3.866 0 7-3.134 7-7s-3.134-7-7-7-7 3.134-7 7 3.134 7 7 7zm-43-7c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zm63 31c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zM34 90c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zm56-76c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zM12 86c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm28-65c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm23-11c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm-6 60c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm29 22c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zM32 63c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm57-13c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm-9-21c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM60 91c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM35 41c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM12 60c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2z' fill='%23ffffff' fill-opacity='0.1' fill-rule='evenodd'/%3E%3C/svg%3E");
    opacity: 0.5;
}

.cta::after {
    content: '';
    position: absolute;
    top: -50px;
    left: 0;
    width: 100%;
    height: 100px;
    background: #fff;
    transform: skewY(-3deg);
}

.cta-content {
    max-width: 700px;
    margin: 0 auto;
}

.cta h2 {
    font-size: 2.5rem;
    margin-bottom: 20px;
    font-family: 'Noto Serif SC', serif;
}

.cta p {
    font-size: 1.2rem;
    margin-bottom: 30px;
    opacity: 0.9;
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
}

.cta .btn.primary {
    background-color: var(--light-text);
    color: var(--primary-color);
}

.cta .btn.primary:hover {
    background-color: rgba(255, 255, 255, 0.9);
}

.cta .btn.secondary {
    border-color: var(--light-text);
    color: var(--light-text);
}

.cta .btn.secondary:hover {
    background-color: var(--light-text);
    color: var(--primary-color);
}

/* 页脚样式 */
footer {
    background-color: var(--dark-bg);
    color: var(--light-text);
    padding: 80px 0 20px;
    position: relative;
    overflow: hidden;
}

footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 5px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color), var(--accent-color), var(--secondary-color), var(--primary-color));
}

.footer-content {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    margin-bottom: 50px;
    gap: 40px;
}

.footer-logo {
    flex: 1;
    min-width: 250px;
}

.footer-logo a {
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 15px;
    display: inline-block;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.footer-logo p {
    opacity: 0.8;
}

.footer-links {
    flex: 2;
    display: flex;
    flex-wrap: wrap;
    gap: 30px;
}

.footer-links-column {
    flex: 1;
    min-width: 150px;
}

.footer-links-column h4 {
    margin-bottom: 20px;
    font-size: 1.2rem;
}

.footer-links-column ul li {
    margin-bottom: 10px;
}

.footer-links-column a {
    opacity: 0.8;
    transition: var(--transition);
    position: relative;
}

.footer-links-column a:hover {
    opacity: 1;
    color: var(--accent-color);
}

.footer-links-column a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -5px;
    left: 0;
    background-color: var(--accent-color);
    transition: width 0.3s ease;
}

.footer-links-column a:hover::after {
    width: 100%;
}

.footer-social {
    flex: 1;
    min-width: 200px;
}

.footer-social h4 {
    margin-bottom: 20px;
    font-size: 1.2rem;
}

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

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

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

.footer-contact {
    flex: 1;
    min-width: 200px;
}

.footer-contact h4 {
    margin-bottom: 20px;
    font-size: 1.2rem;
}

.contact-info {
    list-style: none;
}

.contact-info li {
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.contact-info i {
    color: var(--accent-color);
}

.contact-info a {
    opacity: 0.8;
    transition: var(--transition);
}

.contact-info a:hover {
    opacity: 1;
    color: var(--accent-color);
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 0.9rem;
    opacity: 0.7;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 15px;
}

.language-selector select {
    background-color: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: var(--light-text);
    padding: 8px 15px;
    border-radius: var(--border-radius);
    outline: none;
    cursor: pointer;
    transition: var(--transition);
}

.language-selector select:hover {
    background-color: rgba(255, 255, 255, 0.2);
}

/* Features Grid Styles */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.feature-card {
    background-color: #fff;
    border-radius: var(--border-radius);
    padding: 30px;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    text-align: center;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
}

.feature-icon {
    width: 70px;
    height: 70px;
    margin: 0 auto 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    color: var(--light-text);
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 50%;
}

.feature-card h3 {
    font-size: 1.3rem;
    margin-bottom: 15px;
    color: var(--text-color);
}

.feature-card p {
    color: #666;
    line-height: 1.6;
}

/* Pricing Grid Styles */
.pricing-grid {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 30px;
    margin-top: 50px;
}

.pricing-card {
    flex: 1;
    min-width: 280px;
    max-width: 350px;
    padding: 40px 30px;
    border-radius: var(--border-radius);
    background-color: #fff;
    box-shadow: var(--box-shadow);
    text-align: center;
    transition: var(--transition);
}

.pricing-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
}

.pricing-header h3 {
    font-size: 1.3rem;
    margin-bottom: 10px;
    color: var(--text-color);
}

.pricing-price {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--primary-color);
}

.pricing-price span {
    font-size: 1rem;
    font-weight: 400;
    color: #666;
}

.pricing-features ul {
    text-align: left;
    margin-bottom: 25px;
}

.pricing-features li {
    margin-bottom: 10px;
    color: #666;
}

.pricing-features i {
    color: var(--primary-color);
    margin-right: 10px;
}

/* 响应式设计 */
@media (max-width: 1200px) {
    .container {
        max-width: 960px;
    }
    
    .hero h1 {
        font-size: 3.2rem;
    }
    
    .product-cards {
        gap: 30px;
    }
}

@media (max-width: 992px) {
    .container {
        max-width: 720px;
        padding: 0 15px;
    }
    
    .hero h1 {
        font-size: 3rem;
    }
    
    .hero p {
        font-size: 1.1rem;
    }
    
    .section-header h2 {
        font-size: 2.2rem;
    }
    
    .product-card {
        min-width: 280px;
    }
    
    .testimonial {
        min-width: 260px;
    }
}

@media (max-width: 768px) {
    .container {
        max-width: 540px;
    }
    
    .nav-menu {
        position: fixed;
        top: 80px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 80px);
        background-color: #fff;
        flex-direction: column;
        align-items: center;
        justify-content: flex-start;
        padding-top: 50px;
        transition: var(--transition);
        box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
        z-index: 999;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-menu li {
        margin: 15px 0;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
        gap: 15px;
    }
    
    .hero-buttons .btn {
        width: 100%;
        max-width: 250px;
    }
    
    .intro-features {
        flex-direction: column;
        align-items: center;
        gap: 25px;
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .feature {
        width: 100%;
        max-width: 320px;
    }
    
    .feature-icon {
        width: 60px;
        height: 60px;
        font-size: 1.5rem;
    }
    
    .feature-item {
        flex-direction: column;
        text-align: center;
        align-items: center;
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: center;
        gap: 15px;
    }
    
    .cta-buttons .btn {
        width: 100%;
        max-width: 250px;
    }
    
    .footer-content {
        flex-direction: column;
        gap: 30px;
    }
    
    .footer-links {
        justify-content: center;
    }
}

@media (max-width: 576px) {
    .container {
        width: 100%;
        padding: 0 15px;
    }
    
    .hero h1 {
        font-size: 2rem;
    }
    
    .hero p {
        font-size: 1rem;
    }
    
    .section-header h2 {
        font-size: 1.8rem;
    }
    
    .section-header p {
        font-size: 1rem;
    }
    
    .product-cards {
        flex-direction: column;
        align-items: center;
        gap: 25px;
    }
    
    .product-card {
        width: 100%;
        min-width: unset;
    }
    
    .testimonial-slider {
        flex-direction: column;
        align-items: center;
        gap: 25px;
    }
    
    .testimonial {
        width: 100%;
        min-width: unset;
    }
    
    .btn {
        padding: 10px 20px;
        font-size: 0.95rem;
    }
    
    .feature-icon {
        width: 50px;
        height: 50px;
        font-size: 1.3rem;
    }
}