* { box-sizing: border-box; margin: 0; padding: 0; font-family: system-ui, -apple-system, sans-serif; }
body { background: #f5f5f5; }

/* 页面标题 */
.page-header {
    padding: 20px;
    background: #fff;
    border-bottom: 1px solid #eee;
    text-align: center;
}
.header-title {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
}
.page-header h1 {
    font-size: 20px;
    color: #333;
    line-height: 1.2;
}
.header-en {
    font-size: 13px;
    color: #aaa;
    font-weight: 400;
    letter-spacing: 1px;
    text-transform: uppercase;
}

/* 导航列表 */
.nav-list {
    padding: 15px;
    max-width: 600px;
    margin: 0 auto;
}
.nav-item {
    display: flex;
    align-items: center;
    padding: 15px;
    background: #fff;
    border-radius: 8px;
    margin-bottom: 10px;
    text-decoration: none;
    color: inherit;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
    transition: transform 0.2s, box-shadow 0.2s;
}
.nav-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 3px 8px rgba(0,0,0,0.15);
}
.nav-icon {
    font-size: 30px;
    margin-right: 15px;
    flex-shrink: 0;
}
.nav-content {
    flex: 1;
    min-width: 0;
}
.nav-title {
    font-size: 16px;
    font-weight: 500;
    color: #333;
    line-height: 1.3;
}
.nav-en {
    font-size: 12px;
    color: #bbb;
    line-height: 1.2;
    margin-bottom: 4px;
}
.nav-desc {
    font-size: 12px;
    color: #999;
    line-height: 1.2;
}
.nav-desc-en {
    font-size: 11px;
    color: #ccc;
    line-height: 1.2;
}
.nav-arrow {
    font-size: 24px;
    color: #ccc;
    margin-left: 10px;
}

/* ========== 桌面端响应式布局 ========== */
@media (min-width: 768px) {
    body { padding: 30px 0; }

    .page-header {
        max-width: 600px;
        margin: 0 auto 20px;
        border-radius: 8px;
    }

    .nav-list {
        max-width: 600px;
        margin: 0 auto;
        padding: 0;
    }
    .nav-item {
        padding: 20px;
    }
}