/* 基础样式重置 */

{
margin: 0;
padding: 0;
box-sizing: border-box;
font-family: 'Segoe UI', 'Microsoft YaHei', sans-serif;
}
body {
background-color: #f8f9fa;
color: #333;
line-height: 1.6;
}

/* 导航栏 */
header {
background-color: #1a1a2e;
padding: 1rem 2rem;
position: sticky;
top: 0;
z-index: 1000;
}

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

.logo {
color: #00adb5;
font-size: 1.8rem;
font-weight: bold;
}

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

.nav-links li {
margin-left: 2rem;
}

.nav-links a {
color: #eeeeee;
text-decoration: none;
font-weight: 500;
transition: color 0.3s;
}

.nav-links a:hover {
color: #00adb5;
}

/* 主标题区域 */
.hero {
text-align: center;
padding: 4rem 2rem;
background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
color: white;
}

.hero h1 {
font-size: 2.8rem;
margin-bottom: 1rem;
}

.hero p {
font-size: 1.2rem;
max-width: 700px;
margin: 0 auto 2rem;
color: #cccccc;
}

.cta-buttons {
display: flex;
justify-content: center;
gap: 1.5rem;
flex-wrap: wrap;
}

.btn {
padding: 0.9rem 2rem;
border-radius: 50px;
text-decoration: none;
font-weight: bold;
display: inline-block;
transition: all 0.3s;
}

.btn.primary {
background-color: #00adb5;
color: white;
}

.btn.secondary {
background-color: transparent;
color: #00adb5;
border: 2px solid #00adb5;
}

.btn:hover {
transform: translateY(-3px);
box-shadow: 0 6px 12px rgba(0, 173, 181, 0.3);
}

/* 核心优势区域 */
.features {
max-width: 1200px;
margin: 4rem auto;
padding: 0 2rem;
}

.features h2 {
text-align: center;
font-size: 2.2rem;
margin-bottom: 3rem;
color: #1a1a2e;
}

.feature-grid {
display: grid;
grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
gap: 2rem;
}

.feature-card {
background: white;
padding: 2rem;
border-radius: 12px;
text-align: center;
box-shadow: 0 6px 15px rgba(0, 0, 0, 0.08);
transition: transform 0.3s;
}

.feature-card:hover {
transform: translateY(-8px);
}

.feature-card .icon {
font-size: 3rem;
margin-bottom: 1rem;
}

.feature-card h3 {
color: #1a1a2e;
margin-bottom: 1rem;
}

.feature-card p {
color: #555;
}

/* 下载区域 */
.download {
text-align: center;
padding: 4rem 2rem;
background-color: #f1f1f1;
}

.download h2 {
font-size: 2.2rem;
margin-bottom: 1rem;
color: #1a1a2e;
}

.platforms {
display: flex;
justify-content: center;
gap: 1.5rem;
flex-wrap: wrap;
margin-top: 2rem;
}

.platform-btn {
padding: 1rem 2rem;
background-color: #1a1a2e;
color: white;
text-decoration: none;
border-radius: 8px;
font-weight: bold;
transition: background-color 0.3s;
}

.platform-btn:hover {
background-color: #00adb5;
}

/* 页脚 */
footer {
text-align: center;
padding: 2rem;
background-color: #1a1a2e;
color: #aaaaaa;
}

footer a {
color: #00adb5;
text-decoration: none;
margin: 0 0.5rem;
}

footer a:hover {
text-decoration: underline;
}

/* 响应式调整 */
@media (max-width: 768px) {
.hero h1 {
font-size: 2.2rem;
}
.nav-links {
flex-direction: column;
gap: 1rem;
}
.feature-grid {
grid-template-columns: 1fr;
}
}