/* 全局样式 */
:root {
    --primary-color: #FF6B00;
    --text-color: #333;
    --bg-color: #fff;
    --gray-bg: #f5f5f5;
}

* {
    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 20px;
}

/* 导航栏 */
.navbar {
    background: var(--bg-color);
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo img {
    height: 40px;
}

.logo-text {
    font-size: 24px;
    font-weight: 600;
    color: var(--text-color);
}

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

.nav-links a {
    color: var(--text-color);
    text-decoration: none;
    padding: 10px 20px;
    transition: color 0.3s;
}

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

/* Hero区域 */
.hero {
    padding: 120px 0 80px;
    background: linear-gradient(135deg, #fff 0%, #fff8f3 100%);
}

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

.hero-content {
    flex: 1;
    padding-right: 60px;
}

.hero h1 {
    font-size: 48px;
    margin-bottom: 20px;
    color: var(--text-color);
}

.hero p {
    font-size: 20px;
    margin-bottom: 30px;
    color: #666;
}

.btn-download {
    display: inline-block;
    padding: 12px 30px;
    background: var(--primary-color);
    color: white;
    text-decoration: none;
    border-radius: 25px;
    margin-right: 15px;
    transition: background 0.3s;
}

.btn-download:hover {
    background: #ff8533;
}

.hero-image img {
    max-width: 400px;
    border-radius: 20px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.1);
}

/* 产品展示 */
.products {
    padding: 80px 0;
    background: var(--bg-color);
}

.products h2 {
    text-align: center;
    margin-bottom: 50px;
}

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

.product-item {
    text-align: center;
    padding: 20px;
}

.product-item img {
    width: 100%;
    max-width: 300px;
    border-radius: 15px;
    margin-bottom: 20px;
}

/* 功能特色 */
.features {
    padding: 80px 0;
    background: var(--gray-bg);
}

.features h2 {
    text-align: center;
    margin-bottom: 50px;
}

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

.feature-item {
    text-align: center;
    padding: 30px;
    background: white;
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
}

/* 关于我们 */
.about {
    padding: 80px 0;
    text-align: center;
}

/* 页脚 */
.footer {
    background: #333;
    color: white;
    padding: 60px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
    margin-bottom: 40px;
}

.footer-section h4 {
    margin-bottom: 20px;
}

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

.footer-section a {
    color: white;
    text-decoration: none;
    opacity: 0.8;
}

.footer-section a:hover {
    opacity: 1;
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255,255,255,0.1);
}

.footer-bottom p {
    margin: 10px 0;
    font-size: 14px;
    opacity: 0.8;
}

.footer-bottom a {
    color: white;
    text-decoration: none;
}

/* 在现有样式末尾添加 */
.agreement-content {
    padding: 120px 0 60px;
}

.agreement-content h1 {
    font-size: 32px;
    margin-bottom: 40px;
    color: var(--text-color);
}

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

.agreement-content h2 {
    font-size: 24px;
    margin: 30px 0 15px;
    color: var(--text-color);
}

.agreement-content p {
    margin-bottom: 15px;
    line-height: 1.8;
    color: #666;
}