:root {
    --primary-color: #FF5C05;
    --secondary-color: #333;
    --text-color: #666;
    --light-bg: #f5f7fa;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 40px;
}

/* 头部样式 */
header {
    background: #fff;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 100;
}

header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 100px;
}

.logo {
    display: flex;
    align-items: center;
}

.logo a {
    display: flex;
    align-items: center;
    text-decoration: none;
    gap: 10px;
}

.logo img {
    height: 80px;
    width: auto;
}

.logo-text {
    font-size: 32px;
    font-weight: bold;
    color: #FF5C05;
}

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

nav ul li a {
    padding: 10px 20px;
    color: var(--secondary-color);
    text-decoration: none;
    font-weight: 500;
    position: relative;
    transition: color 0.3s ease;
}

nav ul li a:after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: 0;
    left: 50%;
    background-color: var(--primary-color);
    transition: all 0.3s ease;
    transform: translateX(-50%);
}

nav ul li a:hover {
    color: var(--primary-color);
}

nav ul li a:hover:after {
    width: 70%;
}

/* 按钮样式 */
.btn {
    display: inline-block;
    padding: 14px 32px;
    border-radius: 8px;
    font-weight: 600;
    letter-spacing: 0.5px;
    text-decoration: none;
    transition: all 0.3s ease;
    box-shadow: 0 2px 10px rgba(255, 92, 5, 0.1);
}

.btn.primary {
    background: var(--primary-color);
    color: #fff;
}

.btn.primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(255, 92, 5, 0.2);
}

.btn.secondary {
    background: #fff;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

.btn.secondary:hover {
    background: rgba(255, 92, 5, 0.05);
}

/* 主要区域样式 */
.hero {
    padding: 160px 0 120px;
    background: linear-gradient(135deg, #fff5ef 0%, #ffe4d3 100%);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero:before {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    background: url('data:image/svg+xml,<svg width="20" height="20" viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><circle cx="2" cy="2" r="1" fill="%23FF5C05" opacity="0.1"/></svg>') repeat;
    opacity: 0.5;
    pointer-events: none;
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
}

.hero-content h2 {
    font-size: 56px;
    margin-bottom: 30px;
    color: var(--primary-color);
}

.hero-content p {
    font-size: 28px;
    margin-bottom: 50px;
    color: var(--secondary-color);
}

.cta-buttons {
    position: relative;
    z-index: 2;
    display: flex;
    gap: 20px;
    justify-content: center;
}

/* 功能区域样式 */
.features {
    padding: 100px 0;
    background: #fff;
}

.section-title {
    text-align: center;
    font-size: 36px;
    color: var(--secondary-color);
    margin-bottom: 60px;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
    width: 100%;
}

.feature-item {
    text-align: left;
    padding: 40px;
    background: #fff;
    border-radius: 16px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    border: 1px solid rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease;
}

.feature-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.1);
}

.feature-icon {
    background: var(--light-bg);
    width: 80px;
    height: 80px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 30px;
}

.feature-icon img {
    width: 64px;
    height: 64px;
}

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

.feature-item ul {
    list-style: none;
}

.feature-item ul li {
    position: relative;
    padding-left: 24px;
    margin-bottom: 15px;
    font-size: 16px;
    color: var(--text-color);
}

.feature-item ul li:before {
    content: "✓";
    color: var(--primary-color);
    position: absolute;
    left: 0;
    font-weight: bold;
}

/* 产品优势样式 */
.advantages {
    padding: 100px 0;
    background: var(--light-bg);
}

.advantage-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
    max-width: 1000px;
    margin: 0 auto;
}

.advantage-item {
    text-align: center;
    padding: 35px 25px;
    background: #fff;
    border-radius: 16px;
    transition: all 0.3s ease;
}

.advantage-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.1);
}

.advantage-item h3 {
    color: var(--primary-color);
    margin-bottom: 15px;
    font-size: 24px;
}

.advantage-item p {
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-color);
}

/* 联系表单样式 */
.contact {
    padding: 100px 0;
}

.contact-form {
    width: 100%;
    max-width: none;
    margin: 0;
    padding: 50px;
    background: #fff;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.05);
}

.contact-content {
    width: 100%;
}

.contact-form input {
    width: 100%;
    background: var(--light-bg);
    border: 2px solid transparent;
    padding: 16px 20px;
    margin-bottom: 25px;
    border-radius: 12px;
    font-size: 16px;
    transition: all 0.3s ease;
}

.contact-form input:focus {
    background: #fff;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px rgba(255, 92, 5, 0.1);
}

.contact-form button.btn {
    width: 100%;
    background: var(--primary-color);
    color: #fff;
    border: none;
    padding: 16px;
    border-radius: 12px;
    font-size: 18px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.contact-form button.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(255, 92, 5, 0.2);
}

/* 页脚样式 */
footer {
    background: var(--secondary-color);
    color: #fff;
    padding: 60px 0;
}

.footer-content {
    max-width: 1000px;
    margin: 0 auto;
    text-align: center;
}

.footer-info {
    margin-bottom: 30px;
}

.footer-links {
    margin-bottom: 30px;
}

.footer-links a {
    margin: 0 15px;
    transition: color 0.3s ease;
}

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

/* 响应式设计 */
@media (max-width: 768px) {
    .container {
        padding: 0 20px;
    }
    
    .hero-content h2 {
        font-size: 40px;
    }
    
    .hero-content p {
        font-size: 20px;
    }
    
    .advantage-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .cta-buttons {
        flex-direction: column;
        gap: 15px;
    }
    
    .contact-form {
        padding: 30px 20px;
        margin: 0;
    }
    
    .feature-grid {
        grid-template-columns: 1fr;
    }
    
    .sub-title {
        flex-direction: column;
        gap: 15px;
    }
    
    .feature-item {
        padding: 30px 20px;
    }
    
    .advantage-item {
        padding: 25px 20px;
    }
}

/* 添加副标题样式 */
.sub-title {
    display: flex;
    justify-content: center;
    gap: 30px;
    margin: 30px 0 40px;
    font-size: 20px;
    color: var(--secondary-color);
}

.sub-title span {
    background: rgba(255, 92, 5, 0.1);
    padding: 8px 16px;
    border-radius: 20px;
    color: var(--primary-color);
    font-weight: 500;
}