.ajax_port_list{ min-height:1500px; overflow:hidden; }
.port_banner {  position: relative; width: 100%; height: auto; display: flex; align-items: center; justify-content: center; text-align: center; overflow: hidden; }
.port_banner img { width: 100%; }
.port_overlay { position: absolute; top: 0; left: 0; width: 100%; height: 100%; background: rgba(0, 0, 0, 0.5); display: flex; flex-direction: column; align-items: center; justify-content: center; color: white; overflow: hidden; }
.port_logo_container, .port_text_container { overflow: hidden; }
.port_logo { margin-bottom: 10px; width: 150px; }
.port_bn_text { font-size: 40px; font-weight: bold; background: linear-gradient(to right, #f0f0f0 50%, #ffffff 50%); background-size: 200% 100%; background-position: 100% 0; color: transparent; background-clip: text; -webkit-background-clip: text; }
.port_title_box { text-align: center; margin: 50px auto; max-width: 1690px; }
.port_heading { text-align: left; }
.port_description { text-align: left; margin-top: 20px; }
.port_title_box .port_heading { font-size: 36px; font-weight: bold; margin-bottom: 20px; }
.port_title_box .port_description { font-size: 16px; color: #666; line-height: 1.6; }


.port_sub_title_box { text-align: center; margin: 50px auto; max-width: 1690px; }
.port_sub_heading { text-align: left; }
.port_sub_description { text-align: left; margin-top: 20px; }
.port_sub_title_box .port_sub_heading { font-size: 36px; font-weight: bold; margin-bottom: 20px; }
.port_sub_title_box .port_sub_description { font-size: 16px; color: #666; line-height: 1.6; }

.port_main_img_box{ margin:0 auto; text-align: center; }
.port_main_img_box img {width:100%;}
.port_sub_img_box{ margin:0 auto; padding:20px; text-align: center; }
.port_sub_img_box img { margin:50px auto; }
/* 스크롤 잠금을 위한 스타일 추가 */
#ajax_port_box.prevent-scroll {
    overflow: hidden;
}
.ajax_port_hd_box { margin: 0px auto; margin-top:50px; max-width: 1200px; text-align: center; } 
.ajax_port_hd { margin-bottom: 50px; font-weight: 700; display: inline-block; } 
.ajax_port_hd h1 { font-size: 155px; font-weight: 700; margin: 0; letter-spacing: -18px; } 
.ajax_port_hd h2 { font-size: 100px; font-weight: 700; margin: -80px 0 10px 13px; letter-spacing: -13px; } 
.ajax_port_txt_bg { background: linear-gradient(to right, #252525 50%, #e0eeee 50%); background-size: 200% 100%; background-position-x: 100%; color: transparent; background-clip: text; -webkit-background-clip: text; margin: 20px 0; } 
.ajax_port_txt_bg2 { background: linear-gradient(to left, #252525 50%, #e0eeee 50%); background-size: 200% 100%; background-position-x: 0%; color: transparent; background-clip: text; -webkit-background-clip: text; margin: 20px 0; } 

/* 작은 노트북 (1024px - 1600px) */
@media only screen and (min-width: 1024px) and (max-width: 1600px) {
    .port_title_box { margin: 30px 30px; }
    .port_title_box .port_heading { font-size: 28px; }
    .port_title_box .port_description { font-size: 14px; }
    .port_sub_title_box { margin: 30px 30px; }
    .port_sub_title_box .port_heading { font-size: 28px; }
    .port_sub_title_box .port_description { font-size: 14px; }
    .close-btn { font-size: 20px; }
}
/* 태블릿 (768px - 1023px) */
@media only screen and (min-width: 768px) and (max-width: 1023px) {
    .port_title_box { margin: 30px 30px; }
    .port_title_box .port_heading { font-size: 28px; }
    .port_title_box .port_description { font-size: 14px; }
    .port_sub_title_box { margin: 30px 30px; }
    .port_sub_title_box .port_sub_heading { font-size: 28px; }
    .port_sub_title_box .port_sub_description { font-size: 14px; }
    .close-btn { font-size: 20px; }
}
/* 모바일 (768px 이하) */
@media (max-width: 767px) {
    .port_banner { transform: scale(0.6); }
    .port_bn_text { font-size: 28px; }
    .port_title_box { margin: 20px 20px; }
    .port_title_box .port_heading { font-size: 24px; }
    .port_title_box .port_description { font-size: 12px; }
    .port_sub_title_box { margin: 20px 20px; }
    .port_sub_title_box .port_sub_heading { font-size: 24px; }
    .port_sub_title_box .port_sub_description { font-size: 12px; }
    .close-btn { font-size: 18px; }
	.port_logo { margin-bottom: 10px; width: 50px; max-width: 100%; }
	.ajax_port_hd h1 { font-size: 70px; font-weight: 700; margin: 0; letter-spacing: -8px; } 
	.ajax_port_hd h2 { font-size: 45px; font-weight: 700; margin: -30px 0 10px 5px; letter-spacing: -5px; } 
}
/* 작은 모바일 (480px 이하) */
@media only screen and (max-width: 480px) {
}