/* PC端样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial, sans-serif;
    background: #0F1020;
    color: #E2E8F0;
    line-height: 1.6;
}

/* 顶部导航 */
.header {
    background: #111118;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 8px rgba(0,0,0,0.15);
}

.header-inner {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
}

.logo-text {
    font-size: 22px;
    font-weight: 700;
    background: linear-gradient(135deg, #FF7000, #FFD100);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.nav {
    display: flex;
    gap: 8px;
}

.nav-item {
    position: relative;
}

.nav-link {
    display: block;
    padding: 10px 20px;
    color: #fff;
    text-decoration: none;
    font-size: 15px;
    border-radius: 8px;
    transition: all 0.3s;
}

.nav-link:hover,
.nav-link.active {
    background: rgba(255,112,0,0.15);
    color: #FFD100;
}

/* 下拉菜单 */
.nav-dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 200px;
    background: #1a1a28;
    border-radius: 8px;
    box-shadow: 0 8px 24px rgba(0,0,0,0.3);
    padding: 8px 0;
    display: none;
    margin-top: 4px;
}

.nav-item:hover .nav-dropdown {
    display: block;
}

.nav-dropdown-link {
    display: block;
    padding: 12px 20px;
    color: #ccc;
    text-decoration: none;
    transition: all 0.3s;
}

.nav-dropdown-link:hover {
    background: rgba(255,112,0,0.1);
    color: #FFD100;
}

/* 主要内容区 */
.main {
    background: inherit;
    min-height: 600px;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 40px 24px;
}

/* 首页样式 */
.hero {
    background: linear-gradient(135deg, #111118 0%, #1a1a28 100%);
    padding: 80px 24px;
    text-align: center;
    color: #fff;
}

.hero-title {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 16px;
    background: linear-gradient(135deg, #FF7000, #FFD100);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-subtitle {
    font-size: 20px;
    color: #999;
    margin-bottom: 32px;
}

.hero-btn {
    display: inline-block;
    padding: 14px 40px;
    background: linear-gradient(135deg, #FF7000, #FFD100);
    color: #111;
    text-decoration: none;
    border-radius: 8px;
    font-weight: 600;
    font-size: 16px;
    transition: all 0.3s;
}

.hero-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(255,112,0,0.4);
}

.section {
    padding: 60px 0;
}

.section-title {
    font-size: 32px;
    font-weight: 700;
    color: #333;
    margin-bottom: 40px;
    text-align: center;
}

.section-title span {
    background: linear-gradient(135deg, #FF7000, #FFD100);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* 卡片网格 */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 24px;
}

.card {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 12px;
    padding: 24px;
    box-shadow: 0 4px 16px rgba(0,0,0,0.2);
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: all 0.3s;
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 32px rgba(0,0,0,0.12);
}

.card-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #FF7000, #FFD100);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    margin-bottom: 16px;
}

.card-title {
    font-size: 20px;
    font-weight: 600;
    color: #333;
    margin-bottom: 12px;
}

.card-desc {
    color: #666;
    font-size: 14px;
}

/* 底部 */
.footer {
    background: #111118;
    color: #999;
    padding: 40px 0;
    margin-top: 0;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-inner {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-logo {
    font-size: 20px;
    font-weight: 700;
    background: linear-gradient(135deg, #FF7000, #FFD100);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* 响应式（PC端简单适配） */
@media (max-width: 1200px) {
    .hero-title {
        font-size: 36px;
    }
}