* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: "Microsoft Yahei", system-ui, sans-serif;
}
body {
    background-color: #0f172a;
    color: #e2e8f0;
    line-height: 1.8;
}
.container {
    max-width: 1240px;
    margin: 0 auto;
    padding: 0 20px;
}
/* 导航栏 */
header {
    background: rgba(15, 23, 42, 0.85);
    backdrop-filter: blur(8px);
    position: sticky;
    top: 0;
    z-index: 99;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}
.nav-wrap {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 18px 0;
}
.logo {
    font-size: 22px;
    font-weight: bold;
    color: #fbbf24;
    text-decoration: none;
}
.nav-menu {
    display: flex;
    gap: 32px;
}
.nav-menu a {
    color: #cbd5e1;
    text-decoration: none;
    font-size: 16px;
    transition: color 0.3s;
}
.nav-menu a:hover {
    color: #fbbf24;
}
/* Hero首屏背景图，调用images下图片 */
.hero {
    background: linear-gradient(rgba(15,23,42,0.75),rgba(15,23,42,0.85)), url("../images/hero_bg.jpg");
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    padding: 100px 0;
    text-align: center;
}
.hero h1 {
    font-size: 42px;
    color: #ffffff;
    margin-bottom: 24px;
}
.hero p {
    max-width: 860px;
    margin: 0 auto;
    font-size: 18px;
    color: #cbd5e1;
}
/* 卡片通用样式 */
.section {
    padding: 60px 0;
}
.card {
    background: #1e293b;
    border-radius: 16px;
    padding: 32px;
    margin-bottom: 28px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.3);
    border: 1px solid rgba(255,255,255,0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.card:hover {
    transform: translateY(-4px);
    box-shadow: 0 14px 40px rgba(0,0,0,0.4);
}
h2 {
    font-size: 28px;
    color: #fbbf24;
    margin-bottom: 22px;
    border-left: 5px solid #fbbf24;
    padding-left: 14px;
}
h3 {
    font-size: 20px;
    color: #ffffff;
    margin: 16px 0 10px;
}
p {
    color: #cbd5e1;
    font-size: 16px;
    margin-bottom:14px;
}
.server-item {
    display:flex;
    gap:20px;
    align-items:center;
    padding: 18px;
    background: rgba(255,255,255,0.05);
    border-radius:10px;
    margin-bottom:16px;
}
.server-item img{
    width:140px;
    height:90px;
    object-fit:cover;
    border-radius:8px;
}
.server-text{
    flex:1;
}
.faq-item {
    padding:16px 0;
    border-bottom:1px solid rgba(255,255,255,0.08);
}
.faq-item:last-child {
    border-bottom:none;
}
.content-img{
    width:100%;
    border-radius:12px;
    margin:20px 0;
}
footer {
    background:#020617;
    padding:40px 0;
    border-top:1px solid rgba(255,255,255,0.08);
    font-size:14px;
    color:#94a3b8;
}
/* 移动端适配 */
@media (max-width:768px) {
    .nav-menu {
        gap:16px;
    }
    .hero h1 {
        font-size:30px;
    }
    h2 {
        font-size:22px;
    }
    .card {
        padding:20px;
    }
    .nav-wrap {
        flex-direction: column;
        gap:12px;
    }
    .server-item{
        flex-direction:column;
    }
    .server-item img{
        width:100%;
        height:auto;
    }
}