body {
    margin: 0;
    background: #F5F1EA;
    scroll-snap-type: y proximity;
    overflow-y: scroll;
}

/* ================= HERO ================= */
#hero {
    position: relative;
    height: 92vh;
    display: flex;
    flex-direction: column; justify-content: center; align-items: center;
    text-align: center;
    overflow: hidden;
}
#hero .bg_mark {
    position: absolute;
    top: 50%; left: 50%;
    transform: translate(-50%, -50%);
    width: 560px;;
    z-index: 0;
}
#hero *:not(.bg_mark):not(.tag) {
    position: relative;
    z-index: 1;
}
#hero .tag {
    position: absolute;
    top: -10px; right: 55px;
    width: 10%;
    z-index: 2;
    transform: rotate(8deg);
    transform-origin: top center;
    filter: drop-shadow(0 8px 10px rgba(0,0,0,0.15));
    animation: swing 3s ease-in-out infinite;
}
#hero .sub {
    font-size: 1.75rem;
    color: #333;
    margin-bottom: 80px ;
}
#hero h1 {
    font-family: 'Great Vibes', cursive;
    font-size: 12.50rem;
    color: #A52725;
    margin-top: 30px;
}
#hero .desc {
    font-size: 2.00rem;
    color: #333;
    margin-top: 50px;
    line-height: 1.8;
}
/* ================= nav ================= */
nav {
    border-top: 1px solid rgba(165, 39, 37, 0.5);
    padding: 28px 0;
}
nav ul {
    display: flex;
    justify-content: center;
    gap: 60px;
    list-style: none;
    padding: 0; margin: 0;
    text-align: center;
}
nav ul li {}
nav ul li .font {
    color: #A52725;
    text-decoration: none;
    position: relative;
    letter-spacing: 0.5px;
}
nav ul li .font::after {
    content: '';
    position: absolute;
    left: 0; bottom: -4px;
    width: 0; height: 1px;
    background: #A52725;
    transition: width 0.4s ease;
}
nav ul li .font.active {color: #D0A09F;}
nav ul li .font:hover::after {width: 100%;}

@keyframes swing {
    0% { transform: rotate(6deg); }
    50% { transform: rotate(8deg); }
    100% { transform: rotate(6deg); }
}

/* ================= 자기소개 ================= */
#about {
    min-height: 100vh;
    padding: 50px 120px;
    background: #F5F1EA;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
}
/* ===== 헤더 ===== */
#about .about_header {
    display: flex;
    justify-content: space-between; 
    align-items: center;
}
#about .about_header .header_left  {
    display: flex; 
    flex-direction: column;
}
#about .about_header .header_left  .eng_title {
    font-size: 2.25rem;
    color: #A52725;
    margin-bottom: 22px;
}
#about .about_header .header_left  .about_nav {
    display: flex;
    gap: 32px;
    margin-top: 10px;
}
#about .about_header .header_left  .about_nav li {}
#about .about_header .header_left  .about_nav li .font {
    color: #D0A09F;
    text-decoration: none;
    position: relative;
    transition: color 0.3s ease;
}
#about .about_header .header_left  .about_nav li .font:hover {color: #A52725;}
#about .about_header .header_left  .about_nav li .font::after {
    content: '';
    position: absolute;
    left: 0; bottom: -4px;
    width: 0; height: 1px;
    background: #A52725;
    transition: width 0.3s ease;
}
#about .about_header .header_left  .about_nav li .font:hover::after {width: 100%;}
#about .about_header .header_left  .about_nav li .font.active {color: #A52725}
#about .about_header .header_right {
    text-align: left;
}
#about .about_header .header_right p {
    font-size: 2.00rem;
    color: #333;
    line-height: 1.4;
}
#about .about_header .header_right strong {font-weight: 600;}
/* ===== 레이아웃 ===== */
#about .about_wrap {
    display: grid;
    grid-template-columns: 240px 1fr;
    gap: 300px;
}
/* ===== 프로필 ===== */
#about .about_wrap .profile {text-align: center;}
#about .about_wrap .profile img {
    width: 250px;
    border-radius: 120px;
    margin: 0 auto 25px;
}
#about .about_wrap .profile .name_kr {
    font-size: 2.00rem;
    color: #111;
    font-weight: 500;
    letter-spacing: 6px;
    margin-bottom: 8px;
}
#about .about_wrap .profile .eng_title {
    font-size: 1.38rem;
    color: #555;
    margin-bottom: 12px;
}
#about .about_wrap .profile .info {
    color: #555;
    line-height: 1.6;
    margin: 2px 0;
}
#about .about_wrap .profile .info a {
    color: #555;
    line-height: 1.6;
    margin: 2px 0;
    position: relative;
    text-decoration: none;
}
#about .about_wrap .profile .info a::after {
    content: '';
    position: absolute;
    left: 0; bottom: -2px;
    width: 0; height: 1px;
    background: #333;
    transition: width 0.3s ease;
}
#about .about_wrap .profile .info a:hover {color: #333;}
#about .about_wrap .profile .info a:hover::after {width: 100%;}
#about .about_wrap .profile .info:nth-of-type(1) {margin-top: 10px;}
#about .about_wrap .profile .info:nth-of-type(2) {margin-top: 8px;}
#about .about_wrap .profile .info:nth-of-type(3) {margin-top: 8px;}
#about .about_wrap .profile .keywords {
    margin-top: 30px;
}
#about .about_wrap .profile .keywords .eng_title {
    font-size: 1.38rem;
    color: #333;
    margin-bottom: 12px;
}
#about .about_wrap .profile .keywords span {
    display: inline-block;
    margin: 4px 8px;
    color: #555;
}
#about .about_wrap .profile .keywords span:nth-child(-n+2) {display: inline-block;}
#about .about_wrap .profile .keywords span:nth-child(n+3) {display: inline-block;}
/* ===== 오른쪽 ===== */
#about .about_wrap .about_content {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    padding-top: 10px;
}
/* ===== 섹션 ===== */
#about .about_wrap .about_content .section_block {
    margin-bottom: 50px;
}
#about .about_wrap .about_content .section_block .eng_title {
    font-size: 1.38rem;
    color: #333;
    margin-bottom: 22px;
}
#about .about_wrap .about_content .section_block p {
    color: #555;
    margin-bottom: 22px;
}
#about .about_wrap .about_content .section_block ul {
    padding-left: 15px;
    margin-top: 10px;
}
#about .about_wrap .about_content .section_block ul li {
    list-style: disc;
    margin-bottom: 22px;
    color: #555;
}
#about .about_wrap .about_content .skills .skill_list {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 25px 60px;
}
#about .about_wrap .about_content .skills .skill_list .skill_item {
    display: flex;
    align-items: center;
    gap: 12px;
}
#about .about_wrap .about_content .skills .skill_list .skill_item img {}
#about .about_wrap .about_content .skills .skill_list .skill_item .dots {
    display: flex;
    align-items: center;
    gap: 6px;
}
#about .about_wrap .about_content .skills .skill_list .skill_item .dots span {
    width: 10px; height: 10px;
    border-radius: 50%;
    border: 1px solid #000;
    background: transparent;
    opacity: 0;
    transform: scale(0.5);
    transition: all 0.3s ease;
}
#about .about_wrap .about_content .skills .skill_list .skill_item .dots span.show {
    opacity: 1;
    transform: scale(1);
}
#about .about_wrap .about_content .skills .skill_list .skill_item .dots span.on {background: #000;}
#about .about_wrap .about_content .skills .skill_list .skill_item .dots span.on.show {background: #000; opacity: 1;}
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: all 0.8s ease;
}
.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

.github_link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-top: 12px;
    text-decoration: none;
    border-radius: 20px;
    transition: all 0.25s ease;
}
.github_link span {
    color: #555;
    position: relative;
    text-decoration: none;
}
.github_link span::after {
    content: '';
    position: absolute;
    left: 0; bottom: -2px;
    width: 0; height: 1px;
    background: #333;
    transition: width 0.3s ease;
}
.github_link span:hover {
    color: #333;
}
.github_link span:hover::after {width: 100%;}
/* ================= PROJECT SECTION ================= */
#alo.project_section {
    width: 100%;
    height: 100vh;
    padding: 80px 120px 60px;
    background: #F5F1EA;
    display: flex;
    align-items: center;
    box-sizing: border-box;
    overflow: hidden;
}
/* === 전체 레이아웃 === */
#alo.project_section .project_inner {
    display: grid;
    grid-template-columns: 520px 1fr;
    align-items: center;
    gap: 80px;
}
#alo.project_section .project_inner .project_left {
    display: flex;
    flex-direction: column;
}
#alo.project_section .project_inner .project_left .about_nav {
    display: flex;
    flex-wrap: nowrap;
    gap: 18px;
    margin-bottom: 30px;
}
#alo.project_section .project_inner .project_left .about_nav li {}
#alo.project_section .project_inner .project_left .about_nav li .font {
    position: relative;
    color: #D0A09F;
    text-decoration: none;
    white-space: nowrap;
    transition: all 0.3s ease;
}
#alo.project_section .project_inner .project_left .about_nav li .font::after {
    content: '';
    position: absolute;
    left: 0; bottom: -4px;
    width: 0; height: 1px;
    background: #A52725;
    transition: width 0.3s ease;
}
#alo.project_section .project_inner .project_left .about_nav li .font:hover {color: #A52725;}
#alo.project_section .project_inner .project_left .about_nav li .font:hover::after {width: 100%;}
#alo.project_section .project_inner .project_left .about_nav li .font.active {color: #A52725;}
#alo.project_section .project_inner .project_left .project_title {
    font-size: 2.25rem;
    color: #A52725;
    margin-bottom: 22px;
}
#alo.project_section .project_inner .project_left .project_kor {
    font-size: 2.00rem;
    color: #333;
    font-weight: 700;
    margin-bottom: 5px;
}
#alo.project_section .project_inner .project_left .project_eng {
    font-size: 2.00rem;
    color: #333;
    margin-bottom: 42px;
}
#alo.project_section .project_inner .project_left .project_desc {}
#alo.project_section .project_inner .project_left .project_desc .label {
    color: #333;
    font-size: 1.38rem;
    margin-bottom: 12px;
}
#alo.project_section .project_inner .project_left .project_desc p {
    line-height: 1.5;
    color: #555;
    margin-bottom: 42px;
}
#alo.project_section .project_inner .project_left .project_info {margin-bottom: 42px;}
#alo.project_section .project_inner .project_left .project_info .eng_title {
    font-size: 1.38rem;
    color: #333;
    display: inline-block;
    width: 120px;
}
#alo.project_section .project_inner .project_left .project_info p {
    margin-bottom: 8px;
    color: #555;
}
#alo.project_section .project_inner .project_left .project_link {
    display: flex;
    gap: 30px;
    margin-bottom: 50px;
}
#alo.project_section .project_inner .project_left .project_link a {
    position: relative;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: #333;
    font-size: 1.13rem;
    text-decoration: none;
    transition: all 0.3s ease;
}
#alo.project_section .project_inner .project_left .project_link a:hover {color: #111;}
#alo.project_section .project_inner .project_left .project_link a img {transition: transform 0.3s ease;}
#alo.project_section .project_inner .project_left .project_link a:hover img {transform: translateX(6px);}
#alo.project_section .project_inner .project_left .project_tools {}
#alo.project_section .project_inner .project_left .project_tools .label {
    font-size: 1.38rem;
    color: #333;
    margin-bottom: 18px;
}
#alo.project_section .project_inner .project_left .project_tools .tool_icons {
    display: flex;
    gap: 12px;
}
#alo.project_section .project_inner .project_left .project_tools .tool_icons img {
    width: 40px; height: 40px;
}
#alo.project_section .project_inner .project_right {
    display: flex;
    justify-content: flex-end;
    margin-right: -120px;
}
#alo.project_section .project_inner .project_right img {
    width: 90%;
    max-width: none;
}

/* ================= AESOP PROJECT ================= */
#aesop.section {
    width: 100%;
    min-height: 100vh;
    padding: 80px 120px 60px;
    background: #F5F1EA;
    display: flex;
    align-items: center;
    box-sizing: border-box;
    overflow: hidden;
}

/* ===== 전체 레이아웃 ===== */
#aesop.section .project_inner {
    display: grid;
    grid-template-columns: 520px 1fr;
    gap: 80px;
    align-items: center;
}

/* ===== 좌측 ===== */
#aesop.section .project_inner .project_left {
    display: flex;
    flex-direction: column;
}

/* ===== nav ===== */
#aesop.section .project_inner .project_left .about_nav {
    display: flex;
    flex-wrap: nowrap;
    gap: 18px;
    margin-bottom: 30px;
}

#aesop.section .project_inner .project_left .about_nav li {}

#aesop.section .project_inner .project_left .about_nav li .font {
    position: relative;
    color: #D0A09F;
    text-decoration: none;
    white-space: nowrap;
    transition: all 0.3s ease;
}

#aesop.section .project_inner .project_left .about_nav li .font::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: -4px;
    width: 0;
    height: 1px;
    background: #A52725;
    transition: width 0.3s ease;
}

#aesop.section .project_inner .project_left .about_nav li .font:hover {
    color: #A52725;
}

#aesop.section .project_inner .project_left .about_nav li .font:hover::after {
    width: 100%;
}

#aesop.section .project_inner .project_left .about_nav li .font.active {
    color: #A52725;
}

/* ===== 타이틀 ===== */
#aesop.section .project_inner .project_left .project_title {
    font-size: 2.25rem;
    color: #A52725;
    margin-bottom: 22px;
}

#aesop.section .project_inner .project_left .project_kor {
    font-size: 2.00rem;
    font-weight: 700;
    color: #333;
    margin-bottom: 6px;
}

#aesop.section .project_inner .project_left .project_eng {
    font-size: 2.00rem;
    color: #333;
    margin-bottom: 42px;
}

/* ===== 설명 ===== */
#aesop.section .project_inner .project_left .project_desc {}

#aesop.section .project_inner .project_left .project_desc .label {
    font-size: 1.38rem;
    margin-bottom: 12px;
    color: #333;
}

#aesop.section .project_inner .project_left .project_desc p {
    line-height: 1.6;
    color: #555;
    margin-bottom: 42px;
}

/* ===== 정보 ===== */
#aesop.section .project_inner .project_left .project_info {
    margin-bottom: 42px;
}

#aesop.section .project_inner .project_left .project_info p {
    margin-bottom: 8px;
    color: #555;
}

#aesop.section .project_inner .project_left .project_info p .eng_title {
    display: inline-block;
    width: 110px;
    font-size: 1.38rem;
    color: #333;
}

/* ===== 링크 ===== */
#aesop.section .project_inner .project_left .project_link {
    display: flex;
    gap: 26px;
    margin-bottom: 50px;
}

#aesop.section .project_inner .project_left .project_link a {
    position: relative;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 1.13rem;
    color: #333;
    text-decoration: none;
    transition: all 0.3s ease;
}
/* hover */
#aesop.section .project_inner .project_left .project_link a:hover {
    color: #111;
}

#aesop.section .project_inner .project_left .project_link a img {
    transition: transform 0.3s ease;
}

#aesop.section .project_inner .project_left .project_link a:hover img {
    transform: translateX(6px);
}

/* ===== tools ===== */
#aesop.section .project_inner .project_left .project_tools {}

#aesop.section .project_inner .project_left .project_tools .label {
    font-size: 1.38rem;
    margin-bottom: 16px;
    color: #333;
}

#aesop.section .project_inner .project_left .project_tools .tool_icons {
    display: flex;
    gap: 12px;
}

#aesop.section .project_inner .project_left .project_tools .tool_icons img {
    width: 42px;
    height: 42px;
}

/* ===== 오른쪽 이미지 ===== */
#aesop.section .project_inner .project_right {
    display: flex;
    justify-content: flex-end;
    margin-right: -120px;
}

#aesop.section .project_inner .project_right img {
    width: 90%;
    max-width: none;
    object-fit: cover;
}

/* ================= visual ================= */
#visual.section {
    width: 100%;
    min-height: 100vh;
    padding: 80px 120px 60px;
    background: #F5F1EA;
    display: flex;
    align-items: center;
    box-sizing: border-box;
    overflow: hidden;
}

/* ===== 전체 레이아웃 ===== */
#visual.section .project_inner {
    display: grid;
    grid-template-columns: 520px 1fr;
    gap: 80px;
    align-items: center;
}

/* ===== 좌측 ===== */
#visual.section .project_inner .project_left {
    display: flex;
    flex-direction: column;
}

/* ===== nav ===== */
#visual.section .project_inner .project_left .about_nav {
    display: flex;
    flex-wrap: nowrap;
    gap: 18px;
    margin-bottom: 30px;
}

#visual.section .project_inner .project_left .about_nav li {}

#visual.section .project_inner .project_left .about_nav li .font {
    position: relative;
    color: #D0A09F;
    text-decoration: none;
    white-space: nowrap;
    transition: all 0.3s ease;
}

#visual.section .project_inner .project_left .about_nav li .font::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: -4px;
    width: 0;
    height: 1px;
    background: #A52725;
    transition: width 0.3s ease;
}

#visual.section .project_inner .project_left .about_nav li .font:hover {
    color: #A52725;
}

#visual.section .project_inner .project_left .about_nav li .font:hover::after {
    width: 100%;
}

#visual.section .project_inner .project_left .about_nav li .font.active {
    color: #A52725;
}

/* ===== 타이틀 ===== */
#visual.section .project_inner .project_left .project_title {
    font-size: 2.25rem;
    color: #A52725;
    margin-bottom: 22px;
}

#visual.section .project_inner .project_left .project_kor {
    font-size: 2.00rem;
    font-weight: 700;
    color: #333;
    margin-bottom: 6px;
}

#visual.section .project_inner .project_left .project_eng {
    font-size: 2.00rem;
    color: #333;
    margin-bottom: 42px;
}

/* ===== 설명 ===== */
#visual.section .project_inner .project_left .project_desc {}

#visual.section .project_inner .project_left .project_desc .label {
    font-size: 1.38rem;
    margin-bottom: 12px;
    color: #333;
}

#visual.section .project_inner .project_left .project_desc p {
    line-height: 1.6;
    color: #555;
    margin-bottom: 42px;
}

/* ===== 정보 ===== */
#visual.section .project_inner .project_left .project_info {
    margin-bottom: 42px;
}

#visual.section .project_inner .project_left .project_info p {
    margin-bottom: 8px;
    color: #555;
}

#visual.section .project_inner .project_left .project_info p .eng_title {
    display: inline-block;
    width: 110px;
    font-size: 1.38rem;
    color: #333;
}

/* ===== 링크 ===== */
#visual.section .project_inner .project_left .project_link {
    display: flex;
    gap: 26px;
    margin-bottom: 50px;
}

#visual.section .project_inner .project_left .project_link a {
    position: relative;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 1.13rem;
    color: #333;
    text-decoration: none;
    transition: all 0.3s ease;
}
/* hover */
#visual.section .project_inner .project_left .project_link a:hover {
    color: #111;
}

#visual.section .project_inner .project_left .project_link a img {
    transition: transform 0.3s ease;
}

#visual.section .project_inner .project_left .project_link a:hover img {
    transform: translateX(6px);
}

/* ===== tools ===== */
#visual.section .project_inner .project_left .project_tools {}

#visual.section .project_inner .project_left .project_tools .label {
    font-size: 1.38rem;
    margin-bottom: 16px;
    color: #333;
}

#visual.section .project_inner .project_left .project_tools .tool_icons {
    display: flex;
    gap: 12px;
}

#visual.section .project_inner .project_left .project_tools .tool_icons img {
    width: 42px;
    height: 42px;
}

/* ===== 오른쪽 이미지 ===== */
#visual.section .project_inner .project_right {
    display: flex;
    justify-content: flex-end;
    margin-right: -120px;
}

#visual.section .project_inner .project_right img {
    width: 90%;
    max-width: none;
    object-fit: cover;
}

/* ================= VISUAL ARCHIVE ================= */
#visual_archive.section {
    width: 100%;
    /* height: auto; */
    padding: 60px 120px;
    background: #F5F1EA;
    box-sizing: border-box;
    display: flex;
    flex-direction: column;
    justify-content: center
}
@media (max-height: 900px) {
    #visual_archive.section {
        justify-content: flex-start;
    }
}

/* ===== 상단 ===== */
.archive_inner { margin-bottom: 24px; }

.about_nav {
    display: flex;
    gap: 18px;
    margin-bottom: 22px;
}

.about_nav .font {
    position: relative;
    display: inline-block;
    color: #D0A09F;
    text-decoration: none;
}

.about_nav li .font::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: -4px;
    width: 0;
    height: 1px;
    background: #A52725;
    transition: width 0.3s ease;
}

.about_nav li .font:hover {
    color: #A52725;
}

.about_nav li .font:hover::after {
    width: 100%;
}
.about_nav .font.active {
    color: #A52725;
}

/* ===== 타이틀 ===== */
.archive_title .eng_title {
    font-size: 2.25rem;
    color: #A52725;
    margin-bottom: 32px;
}

.archive_title h2 {
    font-size: 2.00rem;
    margin-bottom: 5px;
    font-weight: 700;
    color: #333;
}

.archive_title .subtitle {
    font-size: 2.00rem;
    margin-bottom: 10px;
    color: #333;
}

.archive_title p {
    font-weight: 600;
    color: #333;
}

/* ===== 슬라이더 ===== */
.archive_slider {
    overflow: hidden;
    cursor: grab;
    user-select: none;
}

.archive_slider.dragging {
    cursor: grabbing;
}

.archive_slider.dragging .track {
    animation-play-state: paused;
}

/* 2줄 구조 */
.archive_track {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

/* 각 줄 */
.track {
    display: flex;
    gap: 24px;
    width: max-content;
    cursor: grab;
    user-select: none;
}

.track.dragging {
    transition: none;
}

/* 둘 다 같은 방향 */
/* .track1 {
    animation: slide 25s linear infinite;
}

.track2 {
    animation: slide 25s linear infinite;
    animation-delay: -10s;
} */

/* 이미지 */
.archive_item {
    width: 260px;
    height: 340px;
    object-fit: cover;
    cursor: pointer;
    transition: transform 0.3s ease;
    flex: 0 0 auto;
}

.archive_item:hover {
    transform: scale(1.05);
}

/* ===== 아래 배너 전용 ===== */
.banner_item {
    width: 420px;
    height: 220px;
    object-fit: cover;
    object-position: top;
}

.top {
    object-position: top;
}

.center {
    object-position: center;
}

/* 슬라이드 */
/* @keyframes slide {
    from { transform: translateX(0); }
    to { transform: translateX(-50%); }
} */

/* ===== 모달 ===== */
.modal {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.85);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: 0.3s;
    z-index: 999;
}

.modal.active {
    opacity: 1;
    pointer-events: all;
}

/* ===== 콘텐츠 ===== */
.modal_content {
    position: relative;
    max-height: 85vh;
    max-width: 800px;
    overflow-y: auto;
    overflow-x: hidden;
}

/* ===== 이미지 ===== */
.modal_content img {
    /* display: block; */
    margin: 0 auto;
    max-width: 80vh;
    width: 800px;
    height: auto;
}

/* 세로 긴 이미지 */
.modal_content img.vertical {
    max-width: 600px;
}

/* ===== 안내문 ===== */
.modal_hint {
    position: absolute;
    top: 30px;
    left: 50%;
    transform: translateX(-50%);

    color: #fff;
    font-size: 0.9rem;
    white-space: nowrap;
}

/* ===== END ===== */
.end_section {
height: 100vh;
display: flex;
align-items: center;
justify-content: center;
flex-direction: column;
}

.end_inner {
    flex: 1; /* 핵심 */
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 200px;
    position: relative;
}
.end_inner::before {
    content: '';
    position: absolute;
    width: 1px;
    height: 120px;
    background: #ddd;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
}
.end_section .about_nav1 {flex-shrink: 0;}

.about_nav1 {
    display: flex;
    justify-content: center;
    gap: 28px;
    padding: 20px 0;
    border-top: 1px solid #e3dcd2;
    border-bottom: 1px solid #e3dcd2;
    background: rgba(255,255,255,0.3);
    backdrop-filter: blur(4px);
}

.about_nav1 .font {
    position: relative;
    color: #C8A8A6;
    font-size: 0.95rem;
    letter-spacing: 0.05em;
}
.about_nav1 .font:hover {
    color: #A52725;
}

/* 초대장 느낌 밑줄 */
.about_nav1 .font::after {
    content: '';
    position: absolute;
    left: 50%;
    bottom: -6px;
    width: 0;
    height: 1px;
    background: #A52725;
    transform: translateX(-50%);
    transition: 0.3s;
}

.about_nav1 .font:hover::after {
    width: 100%;
}

.about_nav1 .font.active {
    color: #A52725;
}
/* ===== 왼쪽 ===== */
.end_left .contact {
    font-size: 1.38rem;
    margin-bottom: 20px;
}

.contact_box {
    display: flex;
    align-items: center;
    gap: 24px;
}

/* QR */
.contact_box > img {
    width: 120px;
    height: 120px;
    object-fit: cover;
}

.contact_info {margin-top: 6px;}
/* 텍스트 영역 */
.contact_info p {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 10px;
    margin-bottom: 12px;
    color: #555;
}

/* 아이콘 */
.contact_info img {
    width: 18px;
    height: 18px;
    object-fit: contain;
}

/* ===== 오른쪽 ===== */
.end_right {
    text-align: right;
    animation: fadeUp 1s ease forwards;
}

.end_right h2 {
    font-size: 2.75rem;
    margin-bottom: 12px;
}

.end_right p {
    font-weight: 600;
    color: #555;
    line-height: 1.5;
}

@keyframes fadeUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ===== 맨 위로 스크롤 ===== */
.top_btn {
    position: fixed;
    right: 40px;
    bottom: 40px;
    width: 60px;
    height: 60px;
    border: none;
    background: none;
    cursor: pointer;
    opacity: 0;
    transition: 0.3s;
    z-index: 999;
}

.top_btn.show {
    opacity: 1;
}

/* 봉투 몸통 */
.envelope {
    position: relative;
    display: block;
    width: 100%;
    height: 100%;
    background: #A52725;
    border-radius: 6px;
    overflow: hidden;
}

/* 봉투 뚜껑 */
.envelope .flap {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: #8f1f1d;
    clip-path: polygon(0 0, 100% 0, 50% 60%);
    transform-origin: top;
    transition: transform 0.4s ease;
}

/* 아래 봉투 접힌 부분 */
.envelope::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 60%;
    background: #b7322f;
    clip-path: polygon(0 100%, 50% 40%, 100% 100%);
}

/* hover 효과 */
.top_btn:hover .flap {
    transform: rotateX(140deg);
}

/* 살짝 뜨는 느낌 */
.top_btn:hover {
    transform: translateY(-6px);
}

/* 클릭 시 더 열리는 느낌 */
.top_btn:active .flap {
    transform: translateY(-2px) scale(0.95);
}