/* 全局重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.8;
    color: #2c3e50;
    font-size: 16px;
    letter-spacing: 0.3px;
}

/* 导航栏样式 */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.98);
    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.08);
    z-index: 1000;
    padding: 0.8rem 0;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0.5rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo a {
    font-size: 2rem;
    font-weight: 700;
    text-decoration: none;
    color: #2c3e50;
    letter-spacing: 0.5px;
}

.nav-links a {
    margin-left: 2.5rem;
    text-decoration: none;
    color: #2c3e50;
    font-weight: 500;
    font-size: 1.1rem;
    letter-spacing: 0.5px;
    transition: all 0.3s ease;
}

.nav-links a:hover {
    color: #ff6b6b;
}

/* Hero区域样式 */
.hero {
    height: 100vh;
    background: linear-gradient(rgba(0, 0, 0, 0.4), rgba(0, 0, 0, 0.4)), url('../images/hero-bg.png');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: white;
}

.hero-content {
    max-width: 900px;
    padding: 2rem;
}

.hero h1 {
    font-size: 4rem;
    margin-bottom: 1.5rem;
    animation: fadeInUp 1s ease;
    letter-spacing: 1px;
    line-height: 1.2;
}

.hero p {
    font-size: 1.8rem;
    margin-bottom: 2.5rem;
    animation: fadeInUp 1s ease 0.3s;
    opacity: 0;
    animation-fill-mode: forwards;
    line-height: 1.6;
    letter-spacing: 0.5px;
}

.cta-button {
    margin-top: 10px;
    display: inline-block;
    padding: .6rem 3rem;
    background: #ff6b6b;
    color: white;
    text-decoration: none;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1.2rem;
    letter-spacing: 1px;
    transition: all 0.4s ease;
    animation: fadeInUp 1s ease 0.6s;
    opacity: 0;
    animation-fill-mode: forwards;
    box-shadow: 0 4px 15px rgba(255, 107, 107, 0.3);
}

.cta-button:hover {
    transform: translateY(-3px);
    background: #ff5252;
    box-shadow: 0 6px 20px rgba(255, 107, 107, 0.4);
}

/* 功能特性区域样式 */
.features {
    padding: 8rem 2rem;
    background: #f8f9fa;
}

.features h2 {
    text-align: center;
    margin-bottom: 4rem;
    font-size: 2.8rem;
    color: #2c3e50;
    letter-spacing: 0.5px;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2.5rem;
    max-width: 1200px;
    margin: 0 auto;
}

.feature-card {
    background: white;
    border-radius: 15px;
    padding: 2.5rem;
    text-align: center;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.06);
    transition: all 0.4s ease;
}

.feature-card:hover {
    transform: translateY(-12px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.1);
}

.feature-icon {
    font-size: 3.5rem;
    color: #ff6b6b;
    margin-bottom: 1.5rem;
}

/* 价格方案区域样式 */
.pricing {
    padding: 8rem 2rem;
    background: white;
}

.pricing h2 {
    text-align: center;
    margin-bottom: 4rem;
    font-size: 2.8rem;
    color: #2c3e50;
    letter-spacing: 0.5px;
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2.5rem;
    max-width: 1200px;
    margin: 0 auto;
}

.pricing-card {
    background: white;
    border-radius: 15px;
    padding: 3rem 2rem;
    text-align: center;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.06);
    transition: all 0.4s ease;
}

.pricing-card li{
  list-style: none;
}

.pricing-card:hover {
    transform: translateY(-12px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.1);
}

.pricing-card.featured {
    border: 2px solid #ff6b6b;
    position: relative;
}

.pricing-card.featured::before {
    content: '推荐';
    position: absolute;
    top: -15px;
    right: 25px;
    background: #ff6b6b;
    color: white;
    padding: 6px 15px;
    border-radius: 25px;
    font-size: 0.9rem;
    font-weight: 600;
    letter-spacing: 1px;
}

/* 客户感言区域样式 */
.testimonials {
    padding: 8rem 2rem;
    background: #f8f9fa;
}

.testimonials h2 {
    text-align: center;
    margin-bottom: 4rem;
    font-size: 2.8rem;
    color: #2c3e50;
    letter-spacing: 0.5px;
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2.5rem;
    max-width: 1200px;
    margin: 0 auto;
}

.testimonial-card {
    background: white;
    border-radius: 15px;
    padding: 2.5rem;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.06);
}

.testimonial-content {
    font-style: italic;
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
    line-height: 1.8;
    color: #4a5568;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 1.2rem;
}

.testimonial-author img {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid #ff6b6b;
}

/* 联系我们区域样式 */
.contact {
    padding: 8rem 2rem;
    background: white;
}

.contact h2 {
    text-align: center;
    margin-bottom: 4rem;
    font-size: 2.8rem;
    color: #2c3e50;
    letter-spacing: 0.5px;
}

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

.contact-form {
    display: grid;
    gap: 1.5rem;
}

.contact-form input,
.contact-form textarea {
    padding: 1.2rem;
    border: 2px solid #e2e8f0;
    border-radius: 10px;
    font-size: 1.1rem;
    transition: all 0.3s ease;
}

.contact-form input:focus,
.contact-form textarea:focus {
    border-color: #ff6b6b;
    outline: none;
    box-shadow: 0 0 0 3px rgba(255, 107, 107, 0.1);
}

.contact-form button {
    background: #ff6b6b;
    color: white;
    padding: 1.2rem;
    border: none;
    border-radius: 10px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    letter-spacing: 0.5px;
}

.contact-form button:hover {
    background: #ff5252;
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(255, 107, 107, 0.3);
}

/* 页脚样式 */
.footer {
    background: #2c3e50;
    color: white;
    padding: 4rem 2rem;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
}

.footer-section h3 {
    margin-bottom: 1.5rem;
    font-size: 1.3rem;
    letter-spacing: 0.5px;
}

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

.footer-section ul li {
    margin-bottom: 0.8rem;
    padding-left: 0;
    list-style: none;
}

.footer-section a {
    color: #cbd5e0;
    text-decoration: none;
    transition: all 0.3s ease;
    font-size: 1.1rem;
}

.footer-section a:hover {
    color: #ff6b6b;
}

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

/* 响应式设计 */
@media (max-width: 768px) {
    .nav-container {
        padding: 0.8rem 1.5rem;
    }

    .nav-links {
        display: none;
    }

    .nav-links li {
        display: inline-block;
        margin-left: 2.5rem;
    }
    .hero h1 {
        font-size: 2.8rem;
    }

    .hero p {
        font-size: 1.4rem;
    }

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

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

    .cta-button {
        padding: 1rem 2.5rem;
        font-size: 1.1rem;
    }
}