@charset "utf-8";
/* ==========================================================
   main.css
   ========================================================== */

* { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif; background-color: #04080F; overflow-x: hidden; }

/* ---------- index2 ---------- */
#index2_s1 {
    position: relative;
    width: 100%;
    height: 100vh;
    overflow: hidden;
}
#index2_s1 img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}
#index2_s2 {
    position: relative;
    width: 100%;
    height: 130vh;
    background-color: #1a1a1a;
}
.s2-sticky-container {
    position: sticky;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    overflow: hidden;
    background: #202225;
    --s2-pad: var(--etrl-gut);
    --row-top: clamp(90px, 15vh, 160px);
}

/* ===== 코드로 생성한 배경 ===== */
.s2-bg { position: absolute; inset: 0; z-index: 0; pointer-events: none; }

/* 중앙 블루 글로우 */
.s2-glow {
    position: absolute;
    left: 50%; top: 46%;
    width: 78vmin; height: 78vmin;
    transform: translate(-50%, -50%);
    translate: var(--ring-x, 0) 0;
    border-radius: 50%;
    background: radial-gradient(circle,
        rgba(74,142,240,0.30) 0%,
        rgba(46,100,190,0.12) 42%,
        transparent 70%);
    will-change: opacity;
    animation: s2Glow 9s ease-in-out infinite;
}
@keyframes s2Glow {
    0%, 100% { opacity: 0.7; }
    50%      { opacity: 1;   }
}

.s2-cols { position: absolute; inset: 0 var(--s2-pad); }
.s2-cl {
    position: absolute;
    top: 0; bottom: 0;
    width: 1px;
    overflow: hidden;
    background: linear-gradient(to bottom,
        transparent, rgba(255,255,255,0.09) 10%, rgba(255,255,255,0.09) 90%, transparent);
}

.s2-cl:nth-child(1) { left: 0; }
.s2-cl:nth-child(5) { left: 100%; }
.s2-cl:nth-child(2) { left: 25%; }
.s2-cl:nth-child(3) { left: 50%; }
.s2-cl:nth-child(4) { left: 75%; }

/* 라인을 타고 흐르는 블루 광점 */
.s2-cl i {
    position: absolute;
    left: 0;
    width: 100%;
    height: 190px;
    top: 0;
    background: linear-gradient(to bottom,
        rgba(106,163,244,0) 0%,
        rgba(106,163,244,0.55) 34%,
        #CFE6FF 50%,
        rgba(106,163,244,0.55) 66%,
        rgba(106,163,244,0) 100%);
    box-shadow: 0 0 10px rgba(106,163,244,0.85), 0 0 26px rgba(106,163,244,0.45);
    will-change: transform;
    animation: s2Rail 7s linear infinite;
}
@keyframes s2Rail {
    0%   { transform: translate3d(0, -190px, 0);          opacity: 0; }
    12%  { opacity: 1; }
    88%  { opacity: 1; }
    100% { transform: translate3d(0, calc(100vh + 190px), 0); opacity: 0; }
}
.s2-cl:nth-child(1) i { animation-duration: 8.4s;  animation-delay: -1.2s; }
.s2-cl:nth-child(2) i { animation-duration: 6.2s;  animation-delay: -4.0s; }
.s2-cl:nth-child(3) i { animation-duration: 10.5s; animation-delay: -2.6s; }
.s2-cl:nth-child(4) i { animation-duration: 7.3s;  animation-delay: -6.1s; }
.s2-cl:nth-child(5) i { animation-duration: 9.1s;  animation-delay: -0.5s; }

/* 상·하단 헤어라인 */

/* 우상단 섹션 인덱스 */
.s2-index {
    position: absolute;
    top: 132px;
    right: var(--s2-pad);
    z-index: 20;
    display: flex;
    align-items: center;
    gap: 12px;
    font-family: 'Chakra Petch', sans-serif;
    font-size: 16px;
    font-weight: 600;
    letter-spacing: 2px;
}
.s2-index .cur { color: #6AA3F4; text-shadow: 0 0 14px rgba(106,163,244,0.6); }
.s2-index .tot { color: rgba(226,236,248,0.4); }
.s2-index .bar { width: 42px; height: 1px; background: linear-gradient(to right, #6AA3F4, rgba(255,255,255,0.2)); }

.s2-grain {
    position: absolute;
    inset: -20%;
    will-change: transform;
    opacity: 0.055;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='200' height='200'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='4'/%3E%3C/filter%3E%3Crect width='200' height='200' filter='url(%23n)'/%3E%3C/svg%3E");
    animation: s2Grain 0.9s steps(3) infinite;
}
@keyframes s2Grain {
    0%   { transform: translate(0, 0); }
    33%  { transform: translate(-3%, 2%); }
    66%  { transform: translate(2%, -3%); }
    100% { transform: translate(0, 0); }
}

.index2_s2_wrap {
    position: relative;
    z-index: 10;
    height: 100%;
    padding: 0 var(--s2-pad);
    display: flex;
    align-items: center;
}
.s2-left {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    width: 54%;
    margin-left: 5%;
}
.s2-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 22px;
    width: 100%;
    padding-bottom: var(--zig, 46px);
}
.card-2, .card-4 {
    margin-top: var(--zig, 46px);
    margin-bottom: calc(var(--zig, 46px) * -1);
}

/* ===== ABOUT ETRL 유도 블록 ===== */
.s2-cta {
    position: relative;
    z-index: 20;
    margin-left: auto;
    margin-right: 14%;
    display: block;
    text-decoration: none;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease;
}
#index2_s2.more-on .s2-cta {
    opacity: 1;
    pointer-events: auto;
    transition: opacity 0.45s ease;
}
.s2-cta::before {
    content: '';
    position: absolute;
    left: -55%; right: -55%; top: -65%; bottom: -70%;
    z-index: -1;
    pointer-events: none;
    background: radial-gradient(ellipse closest-side at 50% 50%,
        rgba(14, 18, 24, 0.9)  0%,
        rgba(14, 18, 24, 0.64) 40%,
        rgba(14, 18, 24, 0.24) 70%,
        transparent 100%);
    opacity: .5;
}

.cta-title {
    display: block;
    font-family: 'Chakra Petch', sans-serif;
    font-size: clamp(42px, 4.4vw, 78px);
    font-weight: 700;
    line-height: 1.02;
    color: #F4F8FD;
    transition: color 0.4s ease;
}
.cta-ln { display: block; overflow: hidden; }
.cta-ln i {
    display: block;
    font-style: normal;
    transform: translateY(112%);
    transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}
#index2_s2.more-on .s2-cta .cta-ln i {
    transform: translateY(0);
    transition: transform 1s cubic-bezier(0.16, 1, 0.3, 1);
}
#index2_s2.more-on .s2-cta .cta-ln:nth-child(1) i { transition-delay: 0.06s; }
#index2_s2.more-on .s2-cta .cta-ln:nth-child(2) i { transition-delay: 0.18s; }

.cta-title em {
    font-style: normal;
    color: #6AA3F4;
}

.s2-cta .cta-more { margin-top: 26px; }
.s2-cta:hover .cta-title { color: #FFFFFF; }
.s2-cta:hover .cta-more::before { width: 100%; }
.s2-cta:hover .cta-more span { color: #14161A; }

/* ── 가로 폭에 따른 세 구간 ── */

@media (max-width: 1580px) {
    .index2_s2_wrap { flex-direction: column; justify-content: center; align-items: center; }
    .s2-left { width: 100%; margin-left: 0; }
    .s2-cta  { width: fit-content; margin: 40px auto 0; text-align: center; }
}

@media (max-width: 900px) {
    .s2-grid { padding-bottom: 0; }
    .card-2, .card-4 { margin-top: 0; margin-bottom: 0; }
    .s2-cta  { margin-top: 26px; }
}

@media (max-width: 767px), (pointer: coarse) {
    .s2-grid { grid-template-columns: 1fr; padding-bottom: 0; }
    .card-2, .card-4 { margin-top: 0; margin-bottom: 0; }
}

/* ===== 터치 기기 정지 배치 ===== */
#index2_s2.s2-static { height: auto; }
#index2_s2.s2-static .s2-sticky-container {
    position: relative;
    height: auto;
    padding: clamp(80px, 14vh, 130px) 0;
}
#index2_s2.s2-static .index2_s2_wrap { height: auto; }

#index2_s2.s2-static .s2-sticky-container { display: flex; flex-direction: column; }
#index2_s2.s2-static .index2_s2_wrap { display: contents; }
#index2_s2.s2-static .s2-cta   { order: 1; margin: 0 auto clamp(30px, 6vw, 48px); }
#index2_s2.s2-static .s2-stage { order: 2; }
#index2_s2.s2-static .s2-left  { order: 3; padding: 0 var(--s2-pad); }

#index2_s2.s2-static .ac-idx   { font-size: 46px; }
#index2_s2.s2-static .ac-title { font-size: 24px; margin: 8px 0 12px; }
#index2_s2.s2-static .ac-desc  { font-size: 16px; line-height: 1.6; }
#index2_s2.s2-static .s2-card  { min-height: 0; padding: 24px 22px 26px; text-align: center; }
#index2_s2.s2-static .ac-desc  { word-break: keep-all; }

#index2_s2.s2-static .s2-sticky-container {
    overflow: hidden;
    padding-top: calc(35vw - clamp(30px, 9vw, 78px));
}
#index2_s2.s2-static .wrap {
    top: 0;
    --ring-y: -50vw;
    --ring-scale: 1;
    transition: translate 1.05s cubic-bezier(0.16, 1, 0.3, 1);
    will-change: auto;
}
#index2_s2.s2-static.obj-in .wrap { --ring-y: -15vw; }

#index2_s2.s2-static .group {
    width: 100vw; height: 100vw;
    top: -50vw; left: -50vw;
}
#index2_s2.s2-static .ring { width: 100vw; height: 100vw; border-radius: 100vw; }

#index2_s2.s2-static .ring { animation: none; }
#index2_s2.s2-static .ring:nth-child(1) { transform: scaleY(1); }
#index2_s2.s2-static .ring:nth-child(2) { transform: scaleY(0.914); }
#index2_s2.s2-static .ring:nth-child(3) { transform: scaleY(0.669); }
#index2_s2.s2-static .ring:nth-child(4) { transform: scaleY(0.309); }
#index2_s2.s2-static .ring:nth-child(5) { transform: scaleY(0.105); }
#index2_s2.s2-static .ring:nth-child(6) { transform: scaleY(0.5); }
#index2_s2.s2-static .ring:nth-child(7) { transform: scaleY(0.809); }
#index2_s2.s2-static .ring:nth-child(8) { transform: scaleY(0.978); }

#index2_s2.s2-static .cs-title,
#index2_s2.s2-static .cs-title2 { font-weight: 500; word-break: keep-all; }
#index2_s2.s2-static .cs-title  { font-size: clamp(21px, 5.2vw, 30px); line-height: 1.5; }
#index2_s2.s2-static .cs-title2 { font-size: clamp(17px, 4.2vw, 22px); line-height: 1.6; }

#index2_s2.s2-static .s2-stage {
    position: relative;
    inset: auto;
    z-index: 15;
    margin-bottom: clamp(36px, 7vw, 64px);
}
#index2_s2.s2-static .cs-step {
    position: static;
    display: block;
    margin-bottom: clamp(18px, 4vw, 30px);
}
#index2_s2.s2-static .cs-line i,
#index2_s2.s2-static .cta-ln i { transform: none; }

#index2_s2.s2-static .s2-card { clip-path: inset(0 0 0% 0); }
#index2_s2.s2-static .s2-cta  { opacity: 1; pointer-events: auto; }

#index2_s2.s2-static .cs-em b { transform: none; }
#index2_s2.s2-static .ac-idx,
#index2_s2.s2-static .ac-title,
#index2_s2.s2-static .ac-desc { opacity: 1; translate: none; }

#index2_s2.s2-static { --ring-x: 0; }

/* ===== 헤딩 ===== */
.s2-card {
    position: relative;
    width: 100%;
    background: rgba(255, 255, 255, 0.05);
    -webkit-backdrop-filter: blur(15px);
    backdrop-filter: blur(15px);
    clip-path: inset(0 0 100% 0);
    transition: clip-path 0.3s cubic-bezier(0.4, 0, 0.2, 1),
                outline-color 0.45s ease,
                box-shadow 0.45s ease;
    will-change: clip-path;
    outline: 1px solid rgba(255,255,255,0.16);
    outline-offset: -1px;
}
.s2-card::after {
    content: '';
    position: absolute;
    left: 0; top: 0;
    width: 0; height: 2px;
    background: linear-gradient(to right, #6AA3F4, rgba(106,163,244,0));
    box-shadow: 0 0 12px rgba(106,163,244,0.8);
    transition: width 0.55s cubic-bezier(0.25,1,0.5,1);
    z-index: 3;
}
.s2-card:hover::after,
.s2-card.is-flash::after { width: 100%; }
.s2-card:hover,
.s2-card.is-flash {
    outline-color: rgba(106,163,244,0.55);
    box-shadow: 0 0 0 1px rgba(106,163,244,0.16), 0 24px 60px rgba(0,0,0,0.45), 0 0 70px rgba(74,142,240,0.18);
}
.s2-card.is-visible {
    clip-path: inset(0 0 0% 0);
    transition: clip-path 0.85s cubic-bezier(0.22, 1, 0.36, 1),
                outline-color 0.5s ease,
                box-shadow 0.5s ease;
}
/* ===== 카드 내용 ===== */
.s2-card {
    min-height: 248px;
    padding: 30px 28px 32px;
    overflow: hidden;
}
.ac-media {
    position: absolute;
    inset: 0;
    z-index: 0;
    opacity: 0.16;
    transform: scale(1.1);
    transition: opacity 0.55s ease, transform 0.9s cubic-bezier(0.25,1,0.5,1), filter 0.55s ease;
    background-image: var(--card-img);
    background-position: center;
    background-size: cover;
    background-repeat: no-repeat;
    filter: grayscale(0.4) brightness(0.9);
}
.ac-media::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(160deg, rgba(8,14,22,0.62) 0%, rgba(8,14,22,0.82) 55%, rgba(6,11,18,0.92) 100%);
}
.s2-card:hover .ac-media,
.s2-card.is-flash .ac-media {
    opacity: 1;
    transform: scale(1);
    filter: grayscale(0) brightness(1);
}

.ac-idx, .ac-title, .ac-desc { position: relative; z-index: 1; opacity: 0; }
@keyframes acRise {
    from { opacity: 0; translate: 0 24px; }
    to   { opacity: 1; translate: 0 0;    }
}
.s2-card.is-visible .ac-idx   { animation: acRise 0.75s cubic-bezier(0.16, 1, 0.3, 1) 0.16s both; }
.s2-card.is-visible .ac-title { animation: acRise 0.75s cubic-bezier(0.16, 1, 0.3, 1) 0.28s both; }
.s2-card.is-visible .ac-desc  { animation: acRise 0.75s cubic-bezier(0.16, 1, 0.3, 1) 0.38s both; }
.ac-idx {
    display: block;
    font-family: 'pretendard', sans-serif;
    font-size: 70px;
    font-weight: 700;
    line-height: 1;
    color: transparent;
    -webkit-text-stroke: 1px rgba(212,230,250,0.78);
    -webkit-mask-image: linear-gradient(to bottom, #000 34%, rgba(0,0,0,0.42) 100%);
            mask-image: linear-gradient(to bottom, #000 34%, rgba(0,0,0,0.42) 100%);
    -webkit-mask-size: 100% 100%;
            mask-size: 100% 100%;
    -webkit-mask-repeat: no-repeat;
            mask-repeat: no-repeat;
    transition: -webkit-text-stroke-color 0.4s ease, color 0.4s ease,
                -webkit-mask-size 0.45s ease, mask-size 0.45s ease;
}
.s2-card:hover .ac-idx,
.s2-card.is-flash .ac-idx { -webkit-mask-size: 100% 420%; mask-size: 100% 420%; }
.s2-card:hover .ac-idx,
.s2-card.is-flash .ac-idx { -webkit-text-stroke-color: rgba(106,163,244,0.95); color: rgba(106,163,244,0.14); }
.ac-title {
    margin: 10px 0 16px;
    font-family: 'Pretendard', sans-serif;
    font-size: 34px;
    font-weight: 700;
    letter-spacing: -0.3px;
    color: #fff;
}
.ac-desc {
    font-family: 'Pretendard', sans-serif;
    font-size: 20px;
    font-weight: 400;
    line-height: 1.65;
    color: rgba(224,236,250,0.9);
    transition: color 0.4s ease;
}
.s2-card:hover .ac-desc,
.s2-card.is-flash .ac-desc { color: #FFFFFF; }
.s2-grid { perspective: 1400px; }
.wrap { position: absolute; top: 50%; left: 50%; animation: spin 40s linear infinite; z-index: 1; pointer-events: none;
        translate: var(--ring-x, 0) var(--ring-y, 0); scale: var(--ring-scale, 1); will-change: translate, scale; }

/* ===== 중앙 스테이지 ===== */
.s2-stage {
    position: absolute;
    inset: 0;
    z-index: 15;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    pointer-events: none;
}
.cs-step {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0 var(--etrl-gut);
}
.cs-title2 {
    margin: 0;
    font-size: clamp(22px, 2.6vw, 46px);
    line-height: 1.5;
}
.cs-title {
    font-family: 'Pretendard', sans-serif;
    font-size: clamp(30px, 3.4vw, 64px);
    font-weight: 700;
    line-height: 1.42;
    letter-spacing: -0.5px;
    text-align: center;
    color: rgba(226,236,248,0.55);
}
.cs-line { display: block; overflow: hidden; }
.cs-line i {
    display: block;
    font-style: normal;
    transform: translateY(115%);
    transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}
.cs-em {
    display: inline-block;
    overflow: hidden;
    vertical-align: bottom;
    font-style: normal;
    filter: drop-shadow(0 0 14px rgba(106,163,244,0.45));
}
.cs-em b {
    display: inline-block;
    font-weight: inherit;
    font-style: normal;
    color: #FFFFFF;
    transform: translateY(115%);
    transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

.cs-step.is-in .cs-line i {
    transform: translateY(0);
    transition: transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}
.cs-step.is-in .cs-line:nth-child(2) i { transition-delay: 0.08s; }
.cs-step.is-in .cs-em b {
    transform: translateY(0);
    transition: transform 0.7s cubic-bezier(0.16, 1, 0.3, 1) 0.28s;
}

.cs-step.no-anim .cs-line i,
.cs-step.no-anim .cs-em b { transition: none !important; }

.cs-step.is-out .cs-line i,
.cs-step.is-out .cs-em b {
    transform: translateY(-115%);
    transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    transition-delay: 0s;
}
.group { position: absolute; width: 50vmin; height: 50vmin; top: -25vmin; left: -25vmin; }
.group:nth-child(1) { transform: rotate(60deg); }
.group:nth-child(2) { transform: rotate(120deg); }
.group:nth-child(3) { transform: rotate(180deg); }
.ring { position: absolute; width: 50vmin; height: 50vmin; border-radius: 50vmin; border: 1px dashed rgba(255, 255, 255, 0.22); animation: rotate 4s linear infinite; }
.group:nth-child(1) .ring:nth-child(2),
.group:nth-child(2) .ring:nth-child(5),
.group:nth-child(3) .ring:nth-child(3) {
    border-style: solid;
    border-color: rgba(106,163,244,0.55);
    box-shadow: 0 0 22px rgba(106,163,244,0.22);
}
.group:nth-child(1) .ring:nth-child(7),
.group:nth-child(3) .ring:nth-child(6) { border-color: rgba(106,163,244,0.3); }
.ring:nth-child(1) { animation: rotate 20s linear infinite; animation-delay: -0.5s; }
.ring:nth-child(2) { animation: rotate 36s linear infinite; animation-delay: -1s; }
.ring:nth-child(3) { animation: rotate 52s linear infinite; animation-delay: -1.5s; }
.ring:nth-child(4) { animation: rotate 68s linear infinite; animation-delay: -2s; }
.ring:nth-child(5) { animation: rotate 84s linear infinite; animation-delay: -2.5s; }
.ring:nth-child(6) { animation: rotate 100s linear infinite; animation-delay: -3s; }
.ring:nth-child(7) { animation: rotate 116s linear infinite; animation-delay: -3.5s; }
.ring:nth-child(8) { animation: rotate 132s linear infinite; animation-delay: -4s; }
@keyframes spin { 0% { transform: rotate(0deg); } 100% { transform: rotate(360deg); } }
@keyframes rotate { 0% { transform: rotateX(0); } 100% { transform: rotateX(360deg); } }

.s2-card { transition-delay: 0s; }
.card-1 { --cd: 0s;    }
.card-2 { --cd: 0.26s; }
.card-3 { --cd: 0.52s; }
.card-4 { --cd: 0.78s; }
.s2-card.is-visible { transition-delay: var(--cd, 0s); }
.s2-card.is-visible .ac-idx   { animation-delay: calc(var(--cd, 0s) + 0.16s); }
.s2-card.is-visible .ac-title { animation-delay: calc(var(--cd, 0s) + 0.28s); }
.s2-card.is-visible .ac-desc  { animation-delay: calc(var(--cd, 0s) + 0.38s); }

#index2_s2.more-on .s2-cta { transition-delay: 1.12s; }
#index2_s2.more-on .s2-cta .cta-ln:nth-child(1) i { transition-delay: 1.20s; }
#index2_s2.more-on .s2-cta .cta-ln:nth-child(2) i { transition-delay: 1.32s; }

/* ===== 카드 디테일 ===== */
.s2-card {
    background: linear-gradient(155deg,
        rgba(106,163,244,0.11) 0%,
        rgba(255,255,255,0.05) 40%,
        rgba(255,255,255,0.028) 100%);
}

.s2-card::before {
    content: '';
    position: absolute;
    top: 0; bottom: 0; left: 0;
    width: 45%;
    z-index: 2;
    pointer-events: none;
    background: linear-gradient(105deg, transparent, rgba(200,225,255,0.22) 48%, transparent);
    transform: translateX(-170%) skewX(-14deg);
    opacity: 0;
}
.s2-card:hover::before,
.s2-card.is-flash::before {
    opacity: 1;
    transform: translateX(345%) skewX(-14deg);
    transition: transform 0.9s cubic-bezier(0.25, 1, 0.5, 1), opacity 0.2s ease;
}

/* ===== RESEARCH TOPIC (index2) ===== */
#index2_s3.rt {
    position: relative;
    width: 100%;
    height: 320vh;
    background: #05080D;
}
.rt-sticky {
    position: sticky;
    top: 0;
    width: 100%;
    height: 100vh;
    overflow: hidden;
    --rt-pad: var(--etrl-gut);
}

/* --- 배경 --- */
.rt-bgs { position: absolute; inset: 0; }
.rt-bg {
    position: absolute;
    inset: 0;
    background-image: var(--bg);
    background-size: cover;
    background-position: center;
    opacity: 0;
    transform: scale(1.06);
    transition: opacity 1s ease, transform 1.6s cubic-bezier(0.16, 1, 0.3, 1);
    will-change: opacity, transform;
}
.rt-bg.is-on { opacity: 1; transform: scale(1); }

.rt-grade {
    position: absolute;
    inset: 0;
    background:
      linear-gradient(100deg, rgba(5,8,13,0.94) 0%, rgba(5,8,13,0.78) 34%, rgba(5,8,13,0.28) 62%, rgba(5,8,13,0.55) 100%),
      linear-gradient(to bottom, rgba(5,8,13,0.7) 0%, transparent 26%, transparent 58%, rgba(5,8,13,0.9) 100%);
}
.rt-grain {
    position: absolute;
    inset: -20%;
    pointer-events: none;
    opacity: 0.06;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='200' height='200'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='4'/%3E%3C/filter%3E%3Crect width='200' height='200' filter='url(%23n)'/%3E%3C/svg%3E");
    animation: rtGrain 0.9s steps(3) infinite;
    will-change: transform;
}
@keyframes rtGrain {
    0%   { transform: translate(0, 0); }
    33%  { transform: translate(-3%, 2%); }
    66%  { transform: translate(2%, -3%); }
    100% { transform: translate(0, 0); }
}

/* --- 상단 라벨 --- */
.rt-head {
    position: absolute;
    top: 118px;
    left: var(--rt-pad);
    right: var(--rt-pad);
    z-index: 5;
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-family: 'Chakra Petch', sans-serif;
    font-size: 20px;
    font-weight: 600;
    letter-spacing: 1.6px;
}
.rt-kicker { display: inline-flex; align-items: center; gap: 10px; color: rgba(226,236,248,0.75); }
.rt-kicker i { width: 6px; height: 6px; background: #6AA3F4; box-shadow: 0 0 12px rgba(106,163,244,0.9); }
.rt-kicker b, .pb-kicker b { font-weight: inherit; color: rgba(255, 255, 255, 0.92); }
.rt-count { display: inline-flex; align-items: center; gap: 12px; color: rgba(226,236,248,0.4); }
.rt-count .rt-cur { color: #ffffff; font-weight: 500; }
.rt-count .rt-bar { width: 40px; height: 1px; background: rgba(255,255,255,0.25); }

/* --- 좌측 본문 --- */
.rt-panels {
    position: absolute;
    left: var(--rt-pad);
    top: 50%;
    transform: translateY(-50%);
    z-index: 5;
    width: min(680px, 46vw);
}
.rt-panel {
    position: absolute;
    top: 50%;
    left: 0;
    width: 100%;
    transform: translateY(-50%);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.25s ease;
}
.rt-panel.is-on { opacity: 1; pointer-events: auto; transition: opacity 0.7s ease 0.15s; }

.rt-tag {
    display: inline-block;
    font-family: 'Pretendard', sans-serif;
    font-size: 16px;
    font-weight: 400;
    letter-spacing: 1.6px;
    color: rgba(255, 255, 255, 0.8);
    border: 1px solid rgba(255, 255, 255, 0.4);
    padding: 7px 20px;
}
.rt-title {
    margin: 18px 0 14px;
    font-family: 'Pretendard', sans-serif;
    font-size: clamp(32px, 3.6vw, 62px);
    font-weight: 700;
    line-height: 1.24;
    letter-spacing: -0.6px;
    color: #FFFFFF;
}
.rt-ln { display: block; overflow: hidden; }
.rt-ln i {
    display: block;
    font-style: normal;
    transform: translateY(112%);
    transition: transform 0.45s cubic-bezier(0.4, 0, 0.2, 1);
}
.rt.is-in .rt-panel.is-on .rt-ln i { transform: translateY(0); transition: transform 0.95s cubic-bezier(0.16,1,0.3,1) 0.2s; }

.rt-sub {
    font-family: 'Chakra Petch', sans-serif;
    font-size: 18px;
    font-weight: 400;
    letter-spacing: 2px;
    color: rgba(226,236,248,0.5);
}
.rt-desc {
    margin-top: 34px;
    font-family: 'Pretendard', sans-serif;
    font-size: 20px;
    font-weight: 400;
    line-height: 1.75;
    color: rgba(226,236,248,0.82);
}
.rt-ex {
    list-style: none;
    margin: 30px 0 0;
    padding: 22px 0 0;
    border-top: 1px solid rgba(150,190,238,0.2);
    display: flex;
    flex-wrap: wrap;
    gap: 10px 34px;
}
.rt-ex li {
    position: relative;
    padding-left: 15px;
    font-family: 'Pretendard', sans-serif;
    font-size: 18px;
    color: rgba(214,228,244,0.6);
}
.rt-ex li::before {
    content: '';
    position: absolute;
    left: 0; top: 50%;
    width: 5px; height: 5px;
    transform: translateY(-50%);
    background: #6AA3F4;
}

/* --- 토픽 버튼 --- */
.rt-more {
    position: relative;
    display: inline-flex;
    align-items: stretch;
    margin-top: 80px;
    overflow: hidden;
    text-decoration: none;
    font-family: 'Pretendard', sans-serif;
    font-size: 16px;
    font-weight: 400;
    letter-spacing: 1px;
    border: 1px solid rgba(255,255,255,0.3);
}
.rt-more::before {
    content: '';
    position: absolute;
    top: 0; right: 0; bottom: 0;
    width: 46px;
    background: #FFFFFF;
    transition: width 0.5s cubic-bezier(0.25, 1, 0.5, 1);
}
.rt-more span {
    position: relative;
    z-index: 1;
    display: flex;
    align-items: center;
    padding: 13px 20px;
    color: #FFFFFF;
    transition: color 0.4s ease;
}
.rt-more i {
    position: relative;
    z-index: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 46px;
}
.rt-more i svg { width: 20px; height: 20px; display: block; overflow: visible; }
.rt-more i svg path {
    fill: none;
    stroke: #14161A;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
}
.rt-more:hover { border-color: #FFFFFF; }
.rt-more:hover::before { width: 100%; }
.rt-more:hover span { color: #14161A; }
.rt-panel.is-on .rt-more:hover i svg { animation-duration: 0.9s; }

/* --- 우하단 썸네일 스위처 --- */
.rt-thumbs {
    position: absolute;
    right: var(--rt-pad);
    bottom: 96px;
    z-index: 5;
    display: flex;
    gap: 14px;
}
.rt-thumb {
    position: relative;
    width: clamp(130px, 12vw, 250px);
    aspect-ratio: 16 / 10;
    padding: 0;
    border: 1px solid rgba(255,255,255,0.2);
    background: var(--bg) center / cover no-repeat;
    cursor: pointer;
    overflow: hidden;
    filter: grayscale(0.7) brightness(0.5);
    transition: filter 0.45s ease, border-color 0.45s ease, transform 0.45s cubic-bezier(0.16,1,0.3,1),
                opacity 0.25s ease, translate 0.3s ease;
}
.rt-thumb::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(4,8,14,0.85), transparent 62%);
}
.rt-thumb:hover { filter: grayscale(0.2) brightness(0.8); border-color: rgba(255,255,255,0.5); }
.rt-thumb.is-on {
    filter: grayscale(0) brightness(1);
    border-color: rgba(255, 255, 255, 0.6);
    transform: translateY(-8px);
    box-shadow: 0 14px 34px rgba(0,0,0,0.5), 0 0 30px rgba(106,163,244,0.28);
}
.rt-thumb-no, .rt-thumb-tx {
    position: relative;
    z-index: 1;
    display: block;
    text-align: left;
    font-family: 'Pretendard', sans-serif;
    color: #FFFFFF;
}
.rt-thumb-no {
    position: absolute;
    top: 10px; left: 12px;
    font-size: 18px;
    font-weight: 700;
    letter-spacing: 1px;
    opacity: 0.7;
}
.rt-thumb-tx {
    position: absolute;
    left: 12px; right: 10px; bottom: 10px;
    font-size: 18px;
    font-weight: 600;
    letter-spacing: 1.4px;
}
.rt-thumb.is-on .rt-thumb-no { color: #fff; opacity: 1; }

/* --- 하단 진행 바 --- */
.rt-progress {
    position: absolute;
    left: var(--rt-pad);
    right: var(--rt-pad);
    bottom: 46px;
    z-index: 5;
    height: 1px;
    background: rgba(255,255,255,0.14);
}
.rt-progress i {
    display: block;
    height: 100%;
    width: var(--rt-p, 0%);
    background: linear-gradient(to right, #6AA3F4, #BFDCFF);
    box-shadow: 0 0 12px rgba(106,163,244,0.8);
    transition: width 0.2s linear;
}

/* --- 본문 순차 등장 --- */
.rt .rt-tag,
.rt .rt-sub,
.rt .rt-desc,
.rt .rt-ex li,
.rt .rt-more {
    opacity: 0;
    translate: 0 22px;
    transition: opacity 0.2s ease, translate 0.25s ease;
}
.rt.is-in .rt-panel.is-on .rt-tag,
.rt.is-in .rt-panel.is-on .rt-sub,
.rt.is-in .rt-panel.is-on .rt-desc,
.rt.is-in .rt-panel.is-on .rt-ex li,
.rt.is-in .rt-panel.is-on .rt-more {
    opacity: 1;
    translate: 0 0;
    transition: opacity 0.7s ease var(--d, 0s),
                translate 0.85s cubic-bezier(0.16, 1, 0.3, 1) var(--d, 0s);
}
.rt.is-in .rt-panel.is-on .rt-tag { --d: 0.10s; }
.rt.is-in .rt-panel.is-on .rt-sub { --d: 0.34s; }
.rt.is-in .rt-panel.is-on .rt-desc { --d: 0.44s; }
.rt.is-in .rt-panel.is-on .rt-ex li:nth-child(1) { --d: 0.54s; }
.rt.is-in .rt-panel.is-on .rt-ex li:nth-child(2) { --d: 0.62s; }
.rt.is-in .rt-panel.is-on .rt-ex li:nth-child(3) { --d: 0.70s; }
.rt.is-in .rt-panel.is-on .rt-more { --d: 0.82s; }
.rt-ex {
    clip-path: inset(0 100% 0 0);
    transition: clip-path 0.25s ease;
}
.rt.is-in .rt-panel.is-on .rt-ex {
    clip-path: inset(0 0 0 0);
    transition: clip-path 0.9s cubic-bezier(0.16, 1, 0.3, 1) 0.48s;
}

/* --- 상단 라벨 등장 --- */
.rt-kicker, .rt-count {
    opacity: 0;
    translate: 0 -14px;
    transition: opacity 0.25s ease, translate 0.3s ease;
}
.rt.is-in .rt-kicker,
.rt.is-in .rt-count {
    opacity: 1;
    translate: 0 0;
    transition: opacity 0.8s ease var(--d, 0s),
                translate 0.9s cubic-bezier(0.16, 1, 0.3, 1) var(--d, 0s);
}
.rt.is-in .rt-kicker { --d: 0.05s; }
.rt.is-in .rt-count  { --d: 0.18s; }

/* --- 우하단 썸네일 등장 --- */
.rt-thumb {
    opacity: 0;
    translate: 0 40px;
}
.rt.is-in .rt-thumb {
    opacity: 1;
    translate: 0 0;
    transition: filter 0.45s ease, border-color 0.45s ease, transform 0.45s cubic-bezier(0.16,1,0.3,1),
                opacity 0.8s ease var(--d, 0s),
                translate 0.95s cubic-bezier(0.16, 1, 0.3, 1) var(--d, 0s);
}
.rt.is-in .rt-thumb:nth-child(1) { --d: 0.28s; }
.rt.is-in .rt-thumb:nth-child(2) { --d: 0.40s; }
.rt.is-in .rt-thumb:nth-child(3) { --d: 0.52s; }

.rt-progress { transform: scaleX(0); transform-origin: left center; transition: transform 0.3s ease; }
.rt.is-in .rt-progress { transform: scaleX(1); transition: transform 1.1s cubic-bezier(0.16, 1, 0.3, 1) 0.2s; }
@media (max-width: 1100px) {
    .rt-panels { width: auto; right: var(--rt-pad); }
    .rt-thumbs { left: var(--rt-pad); right: auto; bottom: 74px; gap: 10px; }
    .rt-thumb  { width: clamp(96px, 26vw, 140px); }
    .rt-desc br { display: none; }
}

/* ══ 폰 ══ */
@media (max-width: 767px) {
    #index2_s3.rt { height: auto; }
    .rt-sticky {
        position: relative;
        touch-action: pan-y;
        height: 100svh;
        display: flex;
        flex-direction: column;
        padding: 86px var(--rt-pad) 26px;
    }

    .rt-grade {
        background: linear-gradient(to bottom,
            rgba(5,8,13,0.9) 0%, rgba(5,8,13,0.8) 38%,
            rgba(5,8,13,0.84) 70%, rgba(5,8,13,0.96) 100%);
    }

    .rt-head { position: static; flex: none; font-size: 16px; }
    .rt-count .rt-bar { width: 28px; }

    /* 본문 */
    .rt-panels {
        position: relative;
        inset: auto;
        transform: none;
        width: auto;
        flex: 1;
        min-height: 0;
    }

    .rt-tag   { font-size: 13px; padding: 5px 12px; }
    .rt-title {
        font-size: 30px;
        margin: clamp(14px, 2.2svh, 20px) 0 clamp(6px, 1.2svh, 10px);
        word-break: keep-all;
    }
    .rt-sub   { font-size: 15px; }
    .rt-desc  {
        margin-top: clamp(20px, 3.8svh, 34px);
        font-size: 16px; line-height: 1.6; word-break: keep-all;
    }
    .rt-ex    {
        margin-top: clamp(18px, 3.4svh, 30px);
        padding-top: clamp(14px, 2.6svh, 22px);
        gap: 8px 18px;
    }
    .rt-ex li { font-size: 15px; }
    .rt-more  { margin-top: clamp(24px, 5svh, 44px); }

    .rt-thumbs {
        position: static;
        flex: none;
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 8px;
        margin-top: 14px;
    }
    .rt-thumb {
        width: auto;
        height: 42px;
        aspect-ratio: auto;
    }
    .rt-thumb.is-on { transform: none; }
    .rt-thumb-no { top: 50%; left: 12px; translate: 0 -50%; font-size: 14px; }
    .rt-thumb-tx { display: none; }

    .rt-progress { position: static; flex: none; margin-top: 14px; }

    /* ── 세로 배치 ── */
    .rt-head { flex-direction: column; justify-content: flex-start; gap: 8px; }
    .rt-panel { text-align: center; }
    .rt-ex { flex-direction: column; align-items: center; gap: 6px; }
    .rt-thumb-no { left: 50%; translate: -50% -50%; }

    /* ── 정돈 ── */
    .rt-tag   { font-size: 14px; }
    .rt-title { font-size: 32px; text-wrap: balance; }
    .rt-desc  { font-size: 17px; line-height: 1.65; text-wrap: balance; }
    .rt-ex li { font-size: 16px; }

    .rt-sub { font-family: 'Pretendard', sans-serif; font-size: 16px; letter-spacing: normal; }

    .rt-ex {
        width: fit-content;
        max-width: 100%;
        margin-left: auto;
        margin-right: auto;
        align-items: flex-start;
        text-align: left;
    }
}

@media (max-width: 767px) and (max-height: 700px) {
    .rt-sub, .rt-ex { display: none; }
    .rt-title { margin-bottom: 0; }
}

/* ===== index2 MAIN VISUAL ===== */
#index2_s1.mv {
    position: relative;
    width: 100%;
    height: 100vh;
    min-height: 640px;
    overflow: hidden;
    background: #101216;
    isolation: isolate;
}

/* 배경 영상 */
.mv-video {
    position: absolute;
    top: -6%; left: -6%;
    width: 112%; height: 112%;
    object-fit: cover;
    filter: grayscale(0.18) saturate(1) contrast(1.03) brightness(0.95);
    animation: mvZoom 34s ease-in-out infinite alternate;
}
@keyframes mvZoom {
    from { transform: scale(1);    }
    to   { transform: scale(1.08); }
}

/* 그레이딩 */
.mv-grade {
    position: absolute;
    inset: 0;
    background:
      linear-gradient(to bottom,
        rgba(14,16,20,0.5) 0%, transparent 13%,
        transparent 72%, rgba(12,14,18,0.18) 88%, rgba(10,12,15,0.72) 100%),
      linear-gradient(100deg,
        rgba(16,18,22,0.34) 0%, transparent 26%,
        transparent 76%, rgba(16,18,22,0.14) 100%);
}

.mv-blob {
    position: absolute;
    border-radius: 50%;
    pointer-events: none;
    mix-blend-mode: screen;
    filter: blur(110px);
}
.mv-blob.b1 {
    width: 42vw; height: 42vw;
    right: -10vw; top: -14vw;
    background: radial-gradient(circle, rgba(74,142,240,0.38), rgba(40,88,170,0.12) 55%, transparent 72%);
    animation: mvBlob 22s ease-in-out infinite alternate;
}
.mv-blob.b2 {
    width: 38vw; height: 38vw;
    left: -8vw; bottom: -18vw;
    background: radial-gradient(circle, rgba(52,170,220,0.24), transparent 72%);
    animation: mvBlob 28s ease-in-out -9s infinite alternate-reverse;
}
@keyframes mvBlob {
    from { transform: translate3d(0, 0, 0) scale(1); }
    to   { transform: translate3d(4%, -5%, 0) scale(1.18); }
}

/* 세로 격자 */
.mv-cols { position: absolute; inset: 0 var(--mv-pad, 160px); pointer-events: none; }
.mv-cols span {
    position: absolute;
    top: 0; bottom: 0;
    width: 1px;
    background: linear-gradient(to bottom, transparent, rgba(255,255,255,0.16) 14%, rgba(255,255,255,0.16) 86%, transparent);
}
.mv-cols span:nth-child(1) { left: 0; }
.mv-cols span:nth-child(2),
.mv-cols span:nth-child(3),
.mv-cols span:nth-child(4) { display: none; }
.mv-cols span:nth-child(5) { left: 100%; }

/* 필름 그레인 */
.mv-grain {
    position: absolute;
    inset: -20%;
    will-change: transform;
    pointer-events: none;
    opacity: 0.045;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='200' height='200'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='4'/%3E%3C/filter%3E%3Crect width='200' height='200' filter='url(%23n)'/%3E%3C/svg%3E");
    animation: mvGrain 0.9s steps(3) infinite;
}
@keyframes mvGrain {
    0%   { transform: translate(0, 0); }
    33%  { transform: translate(-3%, 2%); }
    66%  { transform: translate(2%, -3%); }
    100% { transform: translate(0, 0); }
}

.mv-vignette {
    position: absolute;
    inset: 0;
    pointer-events: none;
    background: radial-gradient(ellipse at 50% 42%, transparent 64%, rgba(8,10,13,0.34) 100%);
}

#index2_s1.mv { --mv-pad: var(--etrl-gut); }

/* ---------- 코너 메타 ---------- */
.mv-meta {
    position: absolute;
    top: 116px;
    z-index: 3;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-family: 'Chakra Petch', sans-serif;
    font-size: 16px;
    font-weight: 400;
    letter-spacing: 3px;
    color: rgba(226,236,248,0.5);
    opacity: 0;
    animation: mvFade 1.1s ease 0.9s both;
    margin-left: 30px;
    margin-right: 30px;
}
.mv-meta.tl { left: var(--mv-pad); }
.mv-meta.tr { right: var(--mv-pad); }
.mv-mk { width: 5px; height: 5px; border-radius: 50%; background: #6AA3F4; box-shadow: 0 0 10px rgba(106,163,244,0.9); }
@keyframes mvFade { from { opacity: 0; } to { opacity: 1; } }

/* ---------- 하단 카피 블록 ---------- */
.mv-block {
    position: absolute;
    left: var(--mv-pad);
    right: var(--mv-pad);
    bottom: 112px;
    z-index: 3;
}

.mv-hr {
    display: block;
    height: 1px;
    background: rgba(255,255,255,0.16);
    transform: scaleX(0);
    transform-origin: left center;
    animation: mvHr 1.5s cubic-bezier(0.16, 1, 0.3, 1) both;
}
.mv-hr.d1 { animation-delay: 0.2s; }
.mv-hr.d2 { animation-delay: 0.75s; }
@keyframes mvHr { to { transform: scaleX(1); } }

.mv-block::before {
    content: '';
    position: absolute;
    left: -28%; right: -28%;
    top: -60%; bottom: -75%;
    z-index: -1;
    pointer-events: none;
    background: radial-gradient(ellipse closest-side at 42% 56%,
        rgba(8,10,14,0.6)  0%,
        rgba(8,10,14,0.34) 40%,
        rgba(8,10,14,0.12) 68%,
        transparent 100%);
}
.mv-head {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 40px;
    padding: 30px 30px 26px;
    -webkit-backdrop-filter: blur(10px);
            backdrop-filter: blur(10px);
    background: linear-gradient(to bottom,
        rgba(10,12,16,0.02) 0%,
        rgba(10,12,16,0.32) 100%);
}

/* 라인 마스크 리빌 */
.mv-title {
    font-family: 'Chakra Petch', sans-serif;
    font-size: clamp(34px, 5vw, 88px);
    font-weight: 400;
    line-height: 1.06;
    letter-spacing: 0.5px;
    color: #F2F6FB;
}
.mv-line { display: block; overflow: hidden; }
.mv-line i {
    display: block;
    font-style: normal;
    transform: translateY(108%);
    animation: mvLine 1.25s cubic-bezier(0.16, 1, 0.3, 1) both;
}
.mv-line:nth-child(1) i { animation-delay: 0.34s; }
.mv-line:nth-child(2) i { animation-delay: 0.46s; }
.mv-title em {
    font-style: normal;
    color: #6AA3F4;
}
@keyframes mvLine { to { transform: translateY(0); } }

@media (max-width: 767px) {
    .mv-line i { transform: none; animation: none; }
    .mv-w { display: block; overflow: hidden; }
    .mv-w > span {
        display: block;
        transform: translateY(108%);
        animation: mvLine 1.1s cubic-bezier(0.16, 1, 0.3, 1) both;
    }
    .mv-line:nth-child(1) .mv-w:nth-child(1) > span { animation-delay: 0.34s; }
    .mv-line:nth-child(1) .mv-w:nth-child(2) > span { animation-delay: 0.46s; }
    .mv-line:nth-child(2) .mv-w:nth-child(1) > span { animation-delay: 0.58s; }
    .mv-line:nth-child(2) .mv-w:nth-child(2) > span { animation-delay: 0.70s; }
}

/* 인덱스 번호 */
.mv-idx {
    flex: none;
    overflow: hidden;
    font-family: 'Chakra Petch', sans-serif;
    font-size: 16px;
    font-weight: 500;
    letter-spacing: 2px;
    color: rgba(226,236,248,0.45);
    padding-top: 8px;
}
.mv-idx i {
    display: block;
    font-style: normal;
    transform: translateY(108%);
    animation: mvLine 1.1s cubic-bezier(0.16, 1, 0.3, 1) 0.6s both;
}

.mv-foot {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 40px;
    padding: 22px 30px 0;
    opacity: 0;
    animation: mvFade 1.2s ease 1s both;
}
.mv-ko {
    font-family: 'Pretendard', sans-serif;
    font-size: clamp(16px, 1.15vw, 19px);
    font-weight: 300;
    letter-spacing: 1px;
    color: rgba(226,236,248,0.62);
}
.mv-en {
    text-align: right;
    font-family: 'Pretendard', sans-serif;
    font-size: clamp(16px, 1.05vw, 32px);
    font-weight: 300;
    line-height: 1.55;
    letter-spacing: 0.6px;
    color: rgba(214,228,244,0.44);
}

/* ---------- 우측 세로 스크롤 큐 ---------- */
.mv-scroll {
    position: absolute;
    right: clamp(20px, 3vw, 56px);
    bottom: 112px;
    z-index: 3;
    display: none;
    flex-direction: column;
    align-items: center;
    gap: 16px;
    opacity: 0;
    animation: mvFade 1.2s ease 1.2s both;
}
.mv-scroll span {
    font-family: 'Chakra Petch', sans-serif;
    font-size: 16px;
    letter-spacing: 3px;
    color: rgba(214,228,244,0.42);
    writing-mode: vertical-rl;
}
.mv-scroll i {
    display: block;
    width: 1px; height: 46px;
    background: linear-gradient(to bottom, rgba(106,163,244,0.9), rgba(106,163,244,0));
    transform-origin: top;
    animation: mvScroll 2s ease-in-out infinite;
}
@keyframes mvScroll {
    0%, 100% { transform: scaleY(0.3); opacity: 0.45; }
    50%      { transform: scaleY(1);   opacity: 1; }
}
@media (min-width: 1500px) { .mv-scroll { display: flex; } }

/* ---------- 하단 마키 ---------- */
.mv-marquee {
    position: absolute;
    left: 0; right: 0; bottom: 0;
    z-index: 3;
    height: 56px;
    display: flex;
    align-items: center;
    overflow: hidden;
    border-top: 1px solid rgba(255,255,255,0.1);
    background: rgba(10,12,15,0.42);
    -webkit-backdrop-filter: blur(6px);
    backdrop-filter: blur(6px);
    opacity: 0;
    animation: mvFade 1.2s ease 1.35s both;
}
.mv-track {
    display: flex;
    align-items: center;
    white-space: nowrap;
    animation: mvMarquee 120s linear infinite;
}
@keyframes mvMarquee {
    from { transform: translateX(0); }
    to   { transform: translateX(-50%); }
}
.mv-track span {
    padding: 0 50px;
    font-family: 'Chakra Petch', sans-serif;
    font-size: 16px;
    font-weight: 400;
    letter-spacing: 3.4px;
    color: rgba(226,236,248,0.5);
}
.mv-track b {
    width: 4px; height: 4px;
    border-radius: 50%;
    background: rgba(106,163,244,0.75);
}

@media (max-width: 1100px) {
    .mv-meta.tr { display: none; }
    .mv-head { flex-direction: column; gap: 14px; }
    .mv-foot { flex-direction: column; gap: 14px; }
    .mv-en { text-align: left; }
    .mv-block { bottom: 96px; }
}
@media (max-width: 900px) {
    .mv-marquee { height: 46px; }
}
@media (max-width: 767px), (pointer: coarse) {
    .mv-track span { padding: 0 20px; letter-spacing: normal; }
}
@media (max-width: 700px) {
    .mv-head { padding: 15px; }
    .mv-foot { padding: 15px 15px 0; }
    .mv-meta { margin-left: 15px; margin-right: 15px; }
}

/* ===== PUBLICATION (index2) ===== */
#index2_s4.pb {
    position: relative;
    width: 100%;
    padding: clamp(96px, 13vh, 170px) 0 clamp(110px, 15vh, 190px);
    background: #0A0D12;
    overflow: hidden;
    --pb-pad: var(--etrl-gut);
}

.pb-bg { position: absolute; inset: 0; pointer-events: none; }
.pb-cols { position: absolute; inset: 0 var(--pb-pad); }
.pb-cols span {
    position: absolute;
    top: 0; bottom: 0;
    width: 1px;
    background: linear-gradient(to bottom, transparent, rgba(255,255,255,0.06) 12%, rgba(255,255,255,0.06) 88%, transparent);
}
.pb-cols span:nth-child(1) { left: 0; }
.pb-cols span:nth-child(2) { left: 25%; }
.pb-cols span:nth-child(3) { left: 50%; }
.pb-cols span:nth-child(4) { left: 75%; }
.pb-cols span:nth-child(5) { left: 100%; }
.pb-grain {
    position: absolute;
    inset: -30%;
    opacity: 0.05;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='200' height='200'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='4'/%3E%3C/filter%3E%3Crect width='200' height='200' filter='url(%23n)'/%3E%3C/svg%3E");
    animation: pbGrain 0.9s steps(3) infinite;
}
@keyframes pbGrain {
    0%   { transform: translate(0, 0); }
    33%  { transform: translate(-3%, 2%); }
    66%  { transform: translate(2%, -3%); }
    100% { transform: translate(0, 0); }
}

.pb-inner { position: relative; z-index: 2; padding: 0 var(--pb-pad); }

/* --- 헤더 --- */
.pb-head { padding: 0 30px; }
.pb-kicker {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    font-family: 'Chakra Petch', sans-serif;
    font-size: 20px;
    font-weight: 600;
    color: rgba(226,236,248,0.6);
    opacity: 0;
    transition: opacity 0.7s ease;
}
.pb-kicker i {
    width: 6px; height: 6px;
    background: #6AA3F4;
    box-shadow: 0 0 12px rgba(106,163,244,0.9);
}
.pb.is-in .pb-kicker { opacity: 1; }

.pb-title-row {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 40px;
    margin-top: 20px;
    padding-bottom: clamp(34px, 4vh, 54px);
}
.pb-title {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    margin: 0;
    font-family: 'Chakra Petch', sans-serif;
    font-size: clamp(38px, 4.4vw, 74px);
    font-weight: 500;
    line-height: 0.94;
    letter-spacing: -1.5px;
    color: #F2F6FB;
}
/* 줄 마스크 리빌 */
.pb-ln { display: block; overflow: hidden; }
.pb-ln i {
    display: block;
    font-style: normal;
    transform: translateY(110%);
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}
.pb.is-in .pb-ln i { transform: translateY(0); transition: transform 1.15s cubic-bezier(0.16, 1, 0.3, 1) 0.1s; }

.pb-more {
    flex: none;
    margin-top: 0;
    margin-bottom: 6px;
    opacity: 0;
    transition: opacity 0.6s ease;
}
.pb.is-in .pb-more { opacity: 1; transition: opacity 0.8s ease 0.55s; }

.pb-go svg path {
    fill: none;
    stroke: currentColor;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
}

/* --- 목록 --- */
.pb-list { list-style: none; margin: 0; padding: 0; border-top: 1px solid rgba(255,255,255,0.13); }
.pb-item {
    position: relative;
    border-bottom: 1px solid rgba(255,255,255,0.13);
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.25s ease, transform 0.3s ease;
}
.pb.is-in .pb-item {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.8s ease calc(0.75s + var(--i, 0) * 0.11s),
                transform 0.95s cubic-bezier(0.16, 1, 0.3, 1) calc(0.75s + var(--i, 0) * 0.11s);
}

.pb-row {
    position: relative;
    display: grid;
    grid-template-columns: 118px 150px minmax(0, 1fr) 52px;
    align-items: center;
    gap: 0 34px;
    padding: clamp(30px, 3.6vh, 46px) 30px;
    text-decoration: none;
    overflow: hidden;
}
.pb-row::before {
    content: '';
    position: absolute;
    left: calc(var(--pb-pad) * -1); right: calc(var(--pb-pad) * -1);
    top: 0; bottom: 0;
    z-index: 0;
    background: linear-gradient(to right, rgba(106,163,244,0.13), rgba(106,163,244,0.02) 44%, transparent 72%);
    opacity: 0;
    transform: translateX(-26px);
    transition: opacity 0.45s ease, transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}
.pb-row:hover::before { opacity: 1; transform: translateX(0); }

.pb-ghost {
    position: absolute;
    right: 72px;
    top: 50%;
    z-index: 0;
    font-family: 'Chakra Petch', sans-serif;
    font-size: clamp(46px, 5vw, 84px);
    font-weight: 700;
    letter-spacing: -1px;
    white-space: nowrap;
    color: transparent;
    -webkit-text-stroke: 1px rgba(106,163,244,0.2);
    opacity: 0;
    translate: 40px -50%;
    transition: opacity 0.45s ease, translate 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}
.pb-row:hover .pb-ghost { opacity: 1; translate: 0 -50%; }

.pb-date, .pb-type, .pb-name, .pb-go { position: relative; z-index: 1; }

.pb-date {
    display: flex;
    flex-direction: column;
    gap: 4px;
    font-family: 'Chakra Petch', sans-serif;
}
.pb-date b {
    font-size: 20px;
    font-weight: 500;
    letter-spacing: 1px;
    color: rgba(226,236,248,0.4);
    transition: color 0.4s ease;
}
.pb-date i {
    font-style: normal;
    font-size: 36px;
    font-weight: 500;
    letter-spacing: 1.6px;
    color: rgba(226,236,248,0.85);
    transition: color 0.4s ease;
}
.pb-row:hover .pb-date b { color: #FFFFFF; }
.pb-row:hover .pb-date i { color: #6AA3F4; }

/* 유형 배지 */
.pb-type {
    justify-self: start;
    padding: 0 18px;
    font-family: 'Chakra Petch', sans-serif;
    font-size: 16px;
    font-weight: 600;
    letter-spacing: 1.6px;
    white-space: nowrap;
    color: rgba(226,236,248,0.62);
    transition: color 0.4s ease;
}
.pb-type::before, .pb-type::after {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    color: rgba(106,163,244,0.75);
    transition: transform 0.45s cubic-bezier(0.25, 1, 0.5, 1), color 0.4s ease;
}
.pb-type::before { content: '['; left: 0; }
.pb-type::after  { content: ']'; right: 0; }
.pb-row:hover .pb-type { color: #FFFFFF; }
.pb-row:hover .pb-type::before { transform: translate(-6px, -50%); color: #6AA3F4; }
.pb-row:hover .pb-type::after  { transform: translate(6px, -50%);  color: #6AA3F4; }

.pb-name {
    margin: 0;
    font-family: 'Pretendard', sans-serif;
    font-size: clamp(19px, 1.5vw, 24px);
    font-weight: 300;
    line-height: 1.45;
    letter-spacing: -0.2px;
    color: rgba(233, 241, 250, 0.88);
    transition: color 0.4s ease, transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}
.pb-row:hover .pb-name { color: #FFFFFF; transform: translateX(12px); }

/* 우측 원형 화살표 */
.pb-go {
    justify-self: end;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 52px; height: 52px;
    border-radius: 50%;
    border: 1px solid rgba(255,255,255,0.18);
    overflow: hidden;
    color: rgba(226,236,248,0.6);
    transition: border-color 0.4s ease, color 0.4s ease;
}
.pb-go::before {
    content: '';
    position: absolute;
    inset: 0;
    background: #6AA3F4;
    border-radius: 50%;
    transform: scale(0);
    transition: transform 0.45s cubic-bezier(0.25, 1, 0.5, 1);
}
.pb-go svg { position: relative; width: 20px; height: 20px; display: block; overflow: visible; transition: transform 0.45s cubic-bezier(0.25,1,0.5,1); }
.pb-row:hover .pb-go { border-color: #6AA3F4; color: #fff;}
.pb-row:hover .pb-go::before { transform: scale(1); }

@media (max-width: 1200px) {
    .pb-row { grid-template-columns: 96px 132px minmax(0, 1fr) 46px; gap: 0 22px; }
    .pb-ghost { display: none; }
}
@media (max-width: 860px) {
    .pb-title-row { flex-direction: column; align-items: flex-start; gap: 22px; }
    .pb-row { grid-template-columns: 1fr auto; gap: 14px 16px; }
    .pb-date { flex-direction: row; align-items: baseline; gap: 10px; grid-column: 1; }
    .pb-type { grid-column: 1; grid-row: 2; }
    .pb-name { grid-column: 1 / -1; grid-row: 3; }
    .pb-go   { grid-column: 2; grid-row: 1 / 3; }
}

/* ══ 폰 — 퍼블리케이션 ══ */
@media (max-width: 767px) {
    #index2_s4.pb { padding: 72px 0 84px; }
    .pb-grain { animation: none; }

    /* 머리글 */
    .pb-head      { padding: 0; text-align: center; }
    .pb-kicker    { font-size: 16px; }
    .pb-title-row { align-items: center; gap: 20px; margin-top: 14px; padding-bottom: 32px; }
    .pb-title     { font-size: 40px; }

    .pb-row {
        grid-template-columns: auto 1fr auto;
        gap: 10px 12px;
        padding: 22px 0;
    }
    .pb-date  { grid-column: 1; grid-row: 1; flex-direction: row; align-items: baseline; gap: 6px; }
    .pb-date b { font-size: 15px; }
    .pb-date i { font-size: 22px; }
    .pb-type  { grid-column: 2; grid-row: 1; font-size: 14px; padding: 0 12px; }
    .pb-go    { grid-column: 3; grid-row: 1; width: 36px; height: 36px; }
    .pb-go svg { width: 16px; height: 16px; }
    .pb-name  {
        grid-column: 1 / -1;
        grid-row: 2;
        font-size: 17px;
        font-weight: 500;
        line-height: 1.5;
        display: -webkit-box;
        -webkit-box-orient: vertical;
        -webkit-line-clamp: 3;
        overflow: hidden;
    }
    .pb-row:hover .pb-name { transform: none; }
}

@media (max-width: 360px) {
    .pb-row    { column-gap: 8px; }
    .pb-date b { font-size: 13px; }
    .pb-date i { font-size: 20px; }
    .pb-type   { font-size: 13px; padding: 0 10px; }
}

/* ===== WORK WITH US ===== */
.rsh-more {
    position: relative;
    align-self: flex-start;
    width: fit-content;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-top: 50px;
    padding: 16px 30px;
    font-family: 'Suit', sans-serif;
    font-size: 15px;
    font-weight: 700;
    letter-spacing: 0.5px;
    color: #FFFFFF;
    text-decoration: none;
    background: transparent;
    border: 1px solid rgba(255,255,255,0.45);
    transition: border-color 0.25s ease, color 0.25s ease;
}
.rsh-more-ico { display: none; }
.rsh-more-label { position: relative; z-index: 2; }
.rsh-fill {
    position: absolute;
    inset: 0;
    background: #1B4FF5;
    opacity: 0;
    transition: opacity 0.25s ease, inset 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 1;
}
/* 모서리 4개 */
.rsh-c {
    position: absolute;
    width: 12px; height: 12px;
    border: 1px solid #1B4FF5;
    opacity: 0;
    transition: opacity 0.25s ease;
    z-index: 3;
}
.rsh-c.tl { top: -1px;    left: -1px;  border-right: none; border-bottom: none; }
.rsh-c.tr { top: -1px;    right: -1px; border-left: none;  border-bottom: none; }
.rsh-c.bl { bottom: -1px; left: -1px;  border-right: none; border-top: none; }
.rsh-c.br { bottom: -1px; right: -1px; border-left: none;  border-top: none; }
.rsh-more:hover { border-color: transparent; }
.rsh-more:hover .rsh-fill { opacity: 1; inset: 4px; }
.rsh-more:hover .rsh-c { opacity: 1; }
/* ===== WORK WITH US ===== */
.workwith {
    position: relative;
    z-index: 6;
    overflow: hidden;
    padding: clamp(120px, 12vw, 200px) clamp(40px, 5vw, 120px) 0;
    background:
      radial-gradient(70% 55% at 20% 18%, rgba(58,120,214,0.10), transparent 62%),
      linear-gradient(180deg, #04070D 0%, #05080e 55%, #030507 100%);
}
.ww-inner {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 760px);
    gap: clamp(60px, 6vw, 120px);
    align-items: start;
    width: 100%;
    max-width: 1600px;
    margin: 0 auto;
}
.ww-headline {
    position: relative;
    display: inline-block;
    padding: 22px 30px;
    font-family: 'Paperozi', sans-serif;
    font-size: clamp(30px, 2.6vw, 44px);
    font-weight: 700;
    line-height: 1.55;
    letter-spacing: -0.5px;
    color: #EDF3FC;
    text-shadow: 0 0 18px rgba(106,163,244,0.55), 0 0 46px rgba(106,163,244,0.3);
}
.ww-headline em {
    font-style: normal;
    color: #6AA3F4;
    text-shadow: 0 0 14px rgba(106,163,244,0.9), 0 0 40px rgba(106,163,244,0.5);
}
.ww-hb {
    position: absolute;
    width: 16px; height: 16px;
    border: 2px solid #6495ED;
    filter: drop-shadow(0 0 4px rgba(100,149,237,1));
}
.ww-hb.tl { top: 0; left: 0; border-right: none; border-bottom: none; border-top-left-radius: 6px; }
.ww-hb.br { bottom: 0; right: 0; border-left: none; border-top: none; border-bottom-right-radius: 6px; }
.ww-sub {
    margin: clamp(36px, 4vw, 64px) 0 0 30px;
    font-family: 'Pretendard', sans-serif;
    font-size: clamp(22px, 1.8vw, 30px);
    font-weight: 400;
    line-height: 1.5;
    color: rgba(214,228,244,0.75);
}
.ww-sub b { font-weight: 700; color: #FFFFFF; }
.ww-cta { margin: clamp(40px, 4.5vw, 70px) 0 0 30px; }
.ww-acc { display: flex; flex-direction: column; gap: 14px; }
.ww-item { border: 1px solid rgba(150,190,238,0.22); background: rgba(255,255,255,0.02); transition: border-color 0.35s ease, background-color 0.35s ease; }
.ww-item:hover { border-color: rgba(150,190,238,0.5); }
.ww-head {
    display: flex;
    align-items: center;
    gap: 14px;
    width: 100%;
    padding: 26px 28px;
    font-family: 'Chakra Petch', sans-serif;
    font-size: 24px;
    font-weight: 600;
    letter-spacing: 0.5px;
    text-align: left;
    color: #E6EDF6;
    background: transparent;
    border: none;
    cursor: pointer;
    transition: color 0.35s ease;
}
.ww-ico { position: relative; width: 18px; height: 18px; margin-left: auto; flex: none; transition: transform 0.4s cubic-bezier(0.25,1,0.5,1); }
.ww-ico::before, .ww-ico::after { content: ''; position: absolute; background: currentColor; }
.ww-ico::before { top: 50%; left: 0; width: 100%; height: 2px; transform: translateY(-50%); }
.ww-ico::after { top: 0; left: 50%; width: 2px; height: 100%; transform: translateX(-50%); }
.ww-panel { display: grid; grid-template-rows: 0fr; transition: grid-template-rows 0.5s cubic-bezier(0.25,1,0.5,1); }
.ww-panel-in { overflow: hidden; }
.ww-item.is-open { background: #FFFFFF; border-color: #FFFFFF; }
.ww-item.is-open .ww-head { color: #4A86E0; }
.ww-item.is-open .ww-ico { transform: rotate(45deg); }
.ww-item.is-open .ww-panel { grid-template-rows: 1fr; }
.ww-desc-kr {
    padding: 0 28px 6px;
    font-family: 'Suit', sans-serif;
    font-size: 18px;
    font-weight: 500;
    line-height: 1.6;
    color: #1B2534;
}
.ww-desc-en {
    padding: 0 28px 28px;
    font-family: 'Chakra Petch', sans-serif;
    font-size: 17px;
    line-height: 1.55;
    color: rgba(27,37,52,0.5);
}
.ww-ghost {
    margin-top: clamp(80px, 9vw, 160px);
    font-family: 'Chakra Petch', sans-serif;
    font-size: clamp(60px, 10vw, 190px);
    font-weight: 700;
    letter-spacing: 2px;
    line-height: 0.9;
    text-align: center;
    width: max-content;
    max-width: 100%;
    margin-left: auto;
    margin-right: auto;
    white-space: nowrap;
    background: linear-gradient(180deg, rgba(120,140,170,0.34) 0%, rgba(120,140,170,0.04) 90%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    user-select: none;
    pointer-events: none;
}
@media (max-width: 1100px) {
    .ww-inner { grid-template-columns: 1fr; }
}
.rsh-swap:has(> .rsh-more) { overflow: visible; }
.rsh-swap:has(> .rsh-more) { display: inline-block; width: auto; }
.pub-head .rsh-more { margin-top: 0; }
.ww-cta { margin: clamp(40px, 4.5vw, 70px) 0 0 30px; }
@media (min-width: 1101px) {
    .pub-head .rsh-more { align-self: flex-end; margin-bottom: 4px; }
}
@media (max-width: 1100px) {
    .pub-head .rsh-more { align-self: flex-start; }
}
/* ===== CONTACT 포탈 ===== */
.ww-portal {
    position: relative;
    width: 100%;
    min-height: min(76vh, 760px);
    display: flex;
    align-items: center;
    justify-content: center;
    perspective: 900px;
    margin-bottom: clamp(60px, 7vw, 110px);
}
.ww-depth {
    position: absolute;
    inset: 0;
    display: grid;
    place-items: center;
    transform-style: preserve-3d;
    transform: rotateX(var(--rx, 0deg)) rotateY(var(--ry, 0deg));
    transition: transform 0.5s ease-out;
    pointer-events: none;
    -webkit-mask-image: radial-gradient(ellipse at center, #000 45%, transparent 78%);
            mask-image: radial-gradient(ellipse at center, #000 45%, transparent 78%);
}
.ww-ring {
    position: absolute;
    width: min(52vw, 720px);
    aspect-ratio: 16 / 10;
    border: 1px solid rgba(106,163,244,0.45);
    opacity: 0;
    animation: ww-depth-in 7s linear infinite;
}
.ww-ring:nth-child(2) { animation-delay: -1.16s; }
.ww-ring:nth-child(3) { animation-delay: -2.33s; }
.ww-ring:nth-child(4) { animation-delay: -3.5s;  }
.ww-ring:nth-child(5) { animation-delay: -4.66s; }
.ww-ring:nth-child(6) { animation-delay: -5.83s; }
@keyframes ww-depth-in {
    0%   { transform: scale(0.06); opacity: 0; }
    12%  { opacity: 0.75; }
    70%  { opacity: 0.28; }
    100% { transform: scale(1.35); opacity: 0; }
}
.ww-core {
    position: relative;
    z-index: 2;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: clamp(40px, 5vw, 76px) clamp(30px, 6vw, 96px);
}
/* 포탈 프레임 브라켓 */
.ww-core::before, .ww-core::after {
    content: '';
    position: absolute;
    width: 34px; height: 34px;
    border: 1px solid rgba(106,163,244,0.75);
    filter: drop-shadow(0 0 8px rgba(106,163,244,0.5));
}
.ww-core::before { top: 0; left: 0;     border-right: none; border-bottom: none; }
.ww-core::after { bottom: 0; right: 0; border-left: none;  border-top: none;    }
.ww-cat {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    font-family: 'Suit', sans-serif;
    font-size: 18px;
    font-weight: 700;
    letter-spacing: 1px;
    color: #B8C4D4;
    margin-bottom: 26px;
}
.ww-portal .ww-headline { margin: 0; }
.ww-portal .ww-sub { margin: 22px 0 0; }
.ww-portal .ww-cta { margin: clamp(34px, 3.4vw, 54px) 0 0; align-self: center; }
/* ===== CONTACT 밴드 ===== */
.ww-band {
    position: relative;
    display: block;
    margin: clamp(80px, 9vw, 150px) calc(-1 * clamp(40px, 5vw, 120px)) 0;
    padding: clamp(28px, 3vw, 46px) 0 clamp(52px, 4vw, 72px);
    border-top: 1px solid rgba(150,190,238,0.28);
    border-bottom: 1px solid rgba(150,190,238,0.28);
    overflow: hidden;
    text-decoration: none;
    background: transparent;
    transition: background-color 0.4s ease, border-color 0.4s ease;
}
.ww-band-track {
    display: flex;
    align-items: center;
    gap: clamp(24px, 2.5vw, 48px);
    width: max-content;
    animation: ww-band-run 26s linear infinite;
    transition: animation-duration 0.4s ease;
}
@keyframes ww-band-run {
    from { transform: translateX(0); }
    to   { transform: translateX(-25%); }
}
.ww-band-item {
    font-family: 'Chakra Petch', sans-serif;
    font-size: clamp(52px, 7.5vw, 132px);
    font-weight: 700;
    line-height: 1;
    letter-spacing: -1px;
    white-space: nowrap;
    color: transparent;
    -webkit-text-stroke: 1px rgba(214,228,244,0.55);
    transition: color 0.4s ease, -webkit-text-stroke-color 0.4s ease;
}
.ww-band-dot {
    font-size: clamp(14px, 1.2vw, 22px);
    color: rgba(106,163,244,0.75);
    transition: color 0.4s ease;
}
.ww-band-hint {
    position: absolute;
    left: clamp(40px, 5vw, 120px);
    bottom: clamp(18px, 1.6vw, 28px);
    font-family: 'Suit', sans-serif;
    font-size: 16px;
    letter-spacing: 0.5px;
    color: rgba(198,214,234,0.5);
    transition: color 0.4s ease;
}
.ww-band:hover {
    background: rgba(106,163,244,0.14);
    border-color: rgba(106,163,244,0.6);
}
.ww-band:hover .ww-band-track { animation-duration: 12s; }
.ww-band:hover .ww-band-item {
    color: #FFFFFF;
    -webkit-text-stroke-color: transparent;
}
.ww-band:hover .ww-band-hint { color: #FFFFFF; }
/* ===== WORK WITH US — 재구성 ===== */
.ww-wrap { width: 100%; max-width: 1600px; margin: 0 auto; }
.ww-top { display: flex; flex-direction: column; }
.ww-mega {
    margin: 26px 0 0;
    font-family: 'Chakra Petch', sans-serif;
    font-size: clamp(80px, 13vw, 220px);
    font-weight: 700;
    line-height: 0.9;
    letter-spacing: -4px;
    color: #EDF3FC;
}
.ww-mega em {
    font-style: normal;
    color: transparent;
    -webkit-text-stroke: 1.5px rgba(106,163,244,0.85);
}
.ww-mid {
    display: grid;
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
    gap: clamp(40px, 5vw, 100px);
    align-items: end;
    margin-top: clamp(50px, 5vw, 90px);
    padding-bottom: clamp(50px, 5vw, 90px);
    border-bottom: 1px solid rgba(150,190,238,0.2);
}
.ww-lead {
    margin: 0;
    font-family: 'Suit', sans-serif;
    font-size: clamp(26px, 2.4vw, 40px);
    font-weight: 700;
    line-height: 1.5;
    letter-spacing: -0.5px;
    color: #FFFFFF;
}
.ww-sub {
    margin: 0;
    font-size: clamp(18px, 1.4vw, 24px);
    line-height: 1.6;
    color: rgba(214,228,244,0.6);
}
.ww-sub b { color: #FFFFFF; font-weight: 700; }
.ww-cols {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
}
.ww-col {
    padding: clamp(34px, 3vw, 54px) clamp(20px, 2vw, 36px);
    border-right: 1px solid rgba(150,190,238,0.16);
    transition: background-color 0.35s ease;
}
.ww-col:first-child { padding-left: 0; }
.ww-col:last-child { border-right: none; padding-right: 0; }
.ww-col:hover { background: rgba(106,163,244,0.06); }
.ww-col-num {
    display: block;
    font-family: 'Suit', sans-serif;
    font-size: 18px;
    font-weight: 700;
    letter-spacing: 1px;
    color: #6AA3F4;
}
.ww-col-title {
    margin: 24px 0 0;
    font-family: 'Suit', sans-serif;
    font-size: clamp(19px, 1.35vw, 23px);
    font-weight: 700;
    line-height: 1.35;
    color: #EEF4FB;
}
.ww-col-kr {
    margin: 22px 0 0;
    font-family: 'Suit', sans-serif;
    font-size: 16px;
    line-height: 1.65;
    color: #C5D2E2;
    word-break: keep-all;
}
.ww-col-en {
    margin: 10px 0 0;
    font-family: 'Chakra Petch', sans-serif;
    font-size: 14px;
    line-height: 1.6;
    color: rgba(198,214,234,0.45);
}
@media (max-width: 1100px) {
    .ww-mid { grid-template-columns: 1fr; align-items: start; }
    .ww-cols { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .ww-col:nth-child(2) { border-right: none; padding-right: 0; }
    .ww-col:nth-child(3) { padding-left: 0; }
}
/* 와이어프레임 지구 */
.ww-top { position: relative; }
.ww-globe {
    position: absolute;
    top: 50%;
    right: 0;
    transform: translateY(-50%);
    width: min(46vw, 620px);
    aspect-ratio: 1;
    pointer-events: none;
    opacity: 0.9;
}
@media (max-width: 1100px) {
    .ww-globe { position: relative; top: auto; right: auto; transform: none; width: min(80vw, 460px); margin: 0 auto; }
}
.ww-globe canvas { display: block; width: 100%; height: 100%; }
/* ===== WORK WITH US — 지구 스테이지 ===== */
.ww-stage {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: min(78vh, 780px);
    overflow: hidden;
}
.ww-roll {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 130vw;
    display: flex;
    pointer-events: none;
}
.ww-roll { top: 34%; }
.ww-roll-b { top: 56%; }
.ww-roll-track {
    display: flex;
    align-items: center;
    gap: clamp(24px, 2.4vw, 44px);
    width: max-content;
    animation: ww-roll-run 34s linear infinite;
}
.ww-roll-b .ww-roll-track { animation-duration: 44s; animation-direction: reverse; }
@keyframes ww-roll-run {
    from { transform: translateX(0); }
    to   { transform: translateX(-25%); }
}
.ww-roll-item {
    font-family: 'Chakra Petch', sans-serif;
    font-size: clamp(58px, 8vw, 150px);
    font-weight: 700;
    line-height: 1;
    letter-spacing: -2px;
    white-space: nowrap;
    color: transparent;
    -webkit-text-stroke: 1px rgba(150,190,238,0.22);
}
.ww-roll-b .ww-roll-item { -webkit-text-stroke-color: rgba(106,163,244,0.16); }
.ww-roll-dot { font-size: clamp(12px, 1vw, 20px); color: rgba(106,163,244,0.28); }
.ww-globe {
    position: relative;
    top: auto; right: auto;
    transform: none;
    width: min(52vw, 620px);
    aspect-ratio: 1;
    z-index: 2;
    filter: drop-shadow(0 30px 80px rgba(0,0,0,0.6));
}
.ww-stage .ww-cat { position: absolute; top: 0; left: 0; margin: 0; z-index: 3; }
/* 타이틀 구역 */
.ww-mid {
    grid-template-columns: minmax(0, 1fr);
    justify-items: center;
    text-align: center;
    gap: 26px;
    margin-top: clamp(30px, 3vw, 50px);
}
.ww-lead { word-break: keep-all; }
/* 카드 4개 */
.ww-cols { border-top: 1px solid rgba(150,190,238,0.2); margin-top: 0; }
.ww-col { position: relative; overflow: hidden; }
.ww-col:nth-child(even) { transform: translateY(28px); }
.ww-col:hover { background: rgba(106,163,244,0.07); }
@media (max-width: 1100px) {
    .ww-globe { width: min(80vw, 460px); margin: 0 auto; }
    .ww-col:nth-child(even) { transform: none; }
}
/* 스테이지 등장 */
.ww-stage .ww-globe { opacity: 0; transform: scale(0.9); transition: opacity 1.1s ease, transform 1.4s cubic-bezier(0.16,1,0.3,1); }
.ww-stage .ww-roll { opacity: 0; transition: opacity 1.2s ease 0.15s; }
.ww-stage.is-on .ww-globe { opacity: 1; transform: scale(1); }
.ww-stage.is-on .ww-roll { opacity: 1; }
/* 카드 */
.ww-col::after {
    content: '';
    position: absolute;
    left: 0; right: 0; bottom: 0;
    height: 1px;
    background: linear-gradient(to right, rgba(106,163,244,0), #6AA3F4, rgba(106,163,244,0));
    transform: scaleX(0);
    transition: transform 0.5s cubic-bezier(0.16,1,0.3,1);
}
.ww-col:hover::after { transform: scaleX(1); }
.ww-col:hover .ww-col-num { color: #9CC2FF; }
.ww-col-num, .ww-col-title { transition: color 0.35s ease; }
.ww-col:hover .ww-col-title { color: #FFFFFF; }
.ww-roll { top: 50%; transform: translate(-50%, -50%); }
.ww-roll-b { display: none; }
.ww-roll-item {
    font-size: clamp(78px, 11vw, 210px);
    color: rgba(150,190,238,0.16);
    -webkit-text-stroke: 0;
}
.ww-roll-dot {
    width: clamp(12px, 1.1vw, 20px);
    aspect-ratio: 1;
    border-radius: 50%;
    background: rgba(106,163,244,0.4);
    font-size: 0;
    flex: 0 0 auto;
}
.ww-roll { top: 72%; }
.ww-stage .ww-globe { opacity: 0; }
.ww-stage.is-on .ww-globe { opacity: 1; }
.ww-stage-copy {
    position: absolute;
    top: 50%; left: 50%;
    transform: translate(-50%, -50%);
    z-index: 4;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 22px;
    text-align: center;
    width: min(90%, 900px);
    text-shadow: 0 4px 30px rgba(0,0,0,0.75);
}
.ww-cols { margin-top: clamp(40px, 4vw, 70px); }
.ww-stage-copy .ww-cta { align-self: center; margin: 14px 0 0; }
.ww-stage { min-height: min(88vh, 900px); }
.ww-globe { width: min(72vw, 880px); }
.ww-roll { top: 50%; z-index: 1; width: min(1600px, 96vw); }
.ww-stage .ww-globe { z-index: 2; }
.ww-roll {
    -webkit-mask-image: linear-gradient(to right, transparent 0%, #000 16%, #000 84%, transparent 100%);
            mask-image: linear-gradient(to right, transparent 0%, #000 16%, #000 84%, transparent 100%);
}
.ww-stage-copy .ww-cat { position: static; align-self: center; margin: 0 0 6px; }
.ww-lead { font-family: 'Paperozi', sans-serif; }
.ww-roll {
    width: 100vw;
    -webkit-mask-image: linear-gradient(to right, transparent 0%, rgba(0,0,0,0.35) 8%, #000 26%, #000 74%, rgba(0,0,0,0.35) 92%, transparent 100%);
            mask-image: linear-gradient(to right, transparent 0%, rgba(0,0,0,0.35) 8%, #000 26%, #000 74%, rgba(0,0,0,0.35) 92%, transparent 100%);
}
.ww-roll-item { font-size: clamp(96px, 14vw, 280px); }
.ww-roll {
    position: absolute;
    left: 50%;
    width: 100vw;
    max-width: none;
    transform: translate(-50%, -50%);
}
.ww-stage { overflow: visible; }
.ww-stage { min-height: min(94vh, 1000px); }
.ww-globe { width: min(86vw, 1080px); }
.ww-stage-copy::before {
    content: '';
    position: absolute;
    inset: -14% -18%;
    z-index: -1;
    background: radial-gradient(ellipse at center, rgba(3,6,12,0.9) 0%, rgba(3,6,12,0.72) 42%, rgba(3,6,12,0) 78%);
    pointer-events: none;
}
.ww-stage-copy { align-items: center; justify-content: center; }
.ww-stage { min-height: min(88vh, 920px); }
.ww-globe { width: min(66vw, 820px); }
.ww-stage-copy { gap: 50px; width: min(92%, 1100px); }
.ww-stage-copy .ww-cat { margin: 0; }
.ww-stage-copy .ww-cta { margin: 0; }
.ww-lead { font-size: clamp(34px, 3.4vw, 56px); }
.ww-sub { font-size: clamp(20px, 1.7vw, 30px); }
.ww-globe { width: min(76vw, 950px); }
.ww-stage { min-height: min(91vh, 960px); }
.ww-stage-copy .ww-cat,
.ww-stage-copy .ww-cta {
    opacity: 0;
    transition: opacity 0.9s ease;
}
.ww-stage.is-on .ww-stage-copy .ww-cat { opacity: 1; transition-delay: 0.05s; }
.ww-stage.is-on .ww-stage-copy .ww-cta { opacity: 1; transition-delay: 0.72s; }

.ww-ln {
    display: block;
    overflow: hidden;
    padding-bottom: 0.12em;
    margin-bottom: -0.12em;
}
.ww-ln i {
    display: block;
    font-style: normal;
    transform: translateY(110%);
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}
.ww-stage.is-on .ww-ln i {
    transform: translateY(0);
    transition: transform 1.15s cubic-bezier(0.16, 1, 0.3, 1);
}
.ww-stage.is-revealed .ww-ln { overflow: visible; }

.ww-stage.is-on .ww-lead .ww-ln:nth-child(1) i { transition-delay: 0.10s; }
.ww-stage.is-on .ww-lead .ww-ln:nth-child(2) i { transition-delay: 0.20s; }
.ww-stage.is-on .ww-sub  .ww-ln:nth-child(1) i { transition-delay: 0.34s; }
.ww-stage.is-on .ww-sub  .ww-ln:nth-child(2) i { transition-delay: 0.44s; }
.ww-globe { filter: none; }
.ww-stage-copy::before {
    background: radial-gradient(ellipse at center, rgba(3,6,12,0.55) 0%, rgba(3,6,12,0.32) 45%, rgba(3,6,12,0) 76%);
}
.ww-stage-copy::before { background: none; }
.workwith { background: linear-gradient(180deg, #04070D 0%, #05080e 55%, #030507 100%); }
.ww-roll {
    left: 0;
    right: 0;
    width: auto;
    margin-left: calc(-1 * clamp(40px, 5vw, 120px));
    margin-right: calc(-1 * clamp(40px, 5vw, 120px));
    transform: translateY(-50%);
}
.ww-roll {
    overflow: hidden;
    -webkit-mask-repeat: no-repeat;
            mask-repeat: no-repeat;
    -webkit-mask-size: 100% 100%;
            mask-size: 100% 100%;
}
.ww-roll { padding: 40px 0; }
.ww-roll-item { line-height: 1.15; }
.ww-roll {
    -webkit-mask-image: linear-gradient(to right, transparent 0%, #000 10%, #000 90%, transparent 100%);
            mask-image: linear-gradient(to right, transparent 0%, #000 10%, #000 90%, transparent 100%);
}
.ww-roll {
    -webkit-mask-image: linear-gradient(to right, transparent 0%, #000 5%, #000 95%, transparent 100%);
            mask-image: linear-gradient(to right, transparent 0%, #000 5%, #000 95%, transparent 100%);
}
.ww-stage-copy .ww-cat,
.ww-lead,
.ww-sub {
    text-shadow:
      0 2px 10px rgba(0,0,0,0.95),
      0 0 26px rgba(0,0,0,0.85),
      0 0 60px rgba(3,8,18,0.7);
}
.ww-stage.is-on .ww-globe { opacity: 0.88; }
.ww-stage.is-on .ww-globe { opacity: 1; filter: saturate(0.55) brightness(0.82); }
.ww-globe::before {
    content: '';
    position: absolute;
    inset: -18%;
    z-index: -1;
    border-radius: 50%;
    background: radial-gradient(circle at center,
        rgba(76,126,206,0.30) 0%,
        rgba(60,104,178,0.16) 38%,
        rgba(40,74,132,0.07) 58%,
        rgba(10,20,38,0) 76%);
    pointer-events: none;
}
.ww-globe { position: relative; isolation: isolate; }
.ww-roll-item { color: rgba(150,168,196,0.13); }
.ww-roll-dot { background: rgba(140,160,190,0.28); }
.ww-lead { line-height: 1.3; }
.ww-sub { line-height: 1.4; }
/* ===== 폰트 통일 ===== */
/* 국문 — Paperozi */
.s2-badge, .rsh-tag, .pub-cat, .ww-cat,
.fc-idx, .fc-title, .fc-txt,
.rsh-desc, .rsh-more, .rsh-more-label,
.pub-name, .pub-filter, .pub-date, .pub-heading,
.ww-lead, .ft-kaeri em, .ww-col-kr {
    font-family: 'Paperozi', sans-serif;
}
/* 영문 */
.hero-tagline p,
.pub-venue, .pub-idx, .pub-type,
.ww-roll-item,
.ft-info li, .ft-kaeri, .ft-copy,
.ft-name, .ft-name em,
.s2-badge, .rsh-tag, .pub-cat, .ww-cat,
.nav-text {
    font-family: 'Suit', sans-serif;
}
.workwith::before {
    content: '';
    position: absolute;
    inset: 0;
    pointer-events: none;
    z-index: 0;
    background-image:
      linear-gradient(to right, rgba(150,190,238,0.045) 1px, transparent 1px),
      linear-gradient(to bottom, rgba(150,190,238,0.045) 1px, transparent 1px);
    background-size: 64px 64px;
    -webkit-mask-image: linear-gradient(to bottom, #000 0%, rgba(0,0,0,0.55) 45%, transparent 88%);
            mask-image: linear-gradient(to bottom, #000 0%, rgba(0,0,0,0.55) 45%, transparent 88%);
}
.ww-wrap { position: relative; z-index: 1; }
.publication::before, .workwith::before { background-position: 0 var(--gy, 0px); }
.workwith::before {
    background-image:
      linear-gradient(to right, rgba(150,190,238,0.055) 1px, transparent 1px),
      linear-gradient(to bottom, rgba(150,190,238,0.055) 1px, transparent 1px);
    -webkit-mask-image: linear-gradient(to bottom, rgba(0,0,0,0.55) 0%, rgba(0,0,0,0.4) 45%, transparent 92%);
            mask-image: linear-gradient(to bottom, rgba(0,0,0,0.55) 0%, rgba(0,0,0,0.4) 45%, transparent 92%);
}
.workwith::before {
    background-image:
      linear-gradient(to right, rgba(150,190,238,0.085) 1px, transparent 1px),
      linear-gradient(to bottom, rgba(150,190,238,0.085) 1px, transparent 1px);
}
/* ===== 섹션 폭 ===== */
.pub-inner, .ww-wrap, .ft-inner { max-width: 1720px; }
.publication, .workwith, .site-footer {
    padding-left: max(24px, calc((100% - 1720px) / 2));
    padding-right: max(24px, calc((100% - 1720px) / 2));
}
.s2-body, .s2-intro, .feature-grid, .pub-inner, .ww-wrap, .ft-inner, .s3-content-grid {
    max-width: 1720px;
    margin-left: auto;
    margin-right: auto;
}
.ww-cat { margin-bottom: 32px; }
.ww-stage-copy { row-gap: 32px; }
.ww-stage-copy { row-gap: 50px; }
.ww-cat { margin-bottom: -18px; }
.ww-stage-copy .ww-cat { margin: 0 0 -18px; }
/* 2) 퍼블리케이션 헤더 등장 모션 */
.pub-head .pub-cat,
.pub-head .pub-heading,
.pub-head .rsh-more {
    opacity: 0;
    transform: translateY(28px);
    transition: opacity 0.7s ease, transform 0.9s cubic-bezier(0.16,1,0.3,1);
}
.pub-head.is-rv .rsh-more { opacity: 1; transform: translateY(0); transition-delay: 0.24s; }
/* 4) 컨택 상/하단 여백 */
.workwith { padding-top: 150px; padding-bottom: 150px; }
.workwith { padding-top: 100px; }
.workwith { padding-top: 50px; padding-bottom: 100px; }
.ww-globe::before {
    inset: -6%;
    background: radial-gradient(circle at center,
        rgba(76,126,206,0.26) 0%,
        rgba(60,104,178,0.13) 42%,
        rgba(40,74,132,0.05) 62%,
        rgba(10,20,38,0) 80%);
}
.workwith { padding-bottom: 80px; }
/* ===== 영문 서체 ===== */
.s2-badge, .rsh-tag, .pub-cat, .ww-cat,
.fc-idx, .rsh-more, .rsh-more-label,
.nav-text, .pub-filter, .pub-date, .pub-date b, .pub-date i,
.pub-tag, .pub-venue,
.ft-info li, .ft-info b, .ft-info span, .ft-kaeri, .ft-copy,
.ww-roll-item, .ww-cta, .hero-tagline p {
    font-family: 'Chakra Petch', sans-serif;
}
.ww-desc-kr, .ww-col-kr, .ft-kaeri em { font-family: 'Paperozi', sans-serif; }
.ww-cat { font-size: 20px; }
.rsh-more-label { font-size: 17px; }
.pub-type, .pub-name,
.ft-name, .ft-name em {
    font-family: 'Chakra Petch', sans-serif;
}
.s2-badge, .rsh-tag, .pub-cat, .ww-cat { font-size: 24px; }
.workwith::before {
    background-image:
      linear-gradient(to right, rgba(150,190,238,0.16) 1px, transparent 1px),
      linear-gradient(to bottom, rgba(150,190,238,0.16) 1px, transparent 1px);
    -webkit-mask-image: linear-gradient(to bottom, #000 0%, rgba(0,0,0,0.7) 50%, transparent 95%);
            mask-image: linear-gradient(to bottom, #000 0%, rgba(0,0,0,0.7) 50%, transparent 95%);
    z-index: 0;
}
.ww-wrap { position: relative; z-index: 2; }
.ww-roll { z-index: 1; }
.ww-stage-copy .ww-cat { margin: 0 0 -24px; }
.ww-stage-copy .ww-cat { margin: 0 0 -30px; }
.publication::before,
.workwith::before {
    background-image:
      linear-gradient(to right, rgba(255,255,255,0.065) 1px, transparent 1px),
      linear-gradient(to bottom, rgba(255,255,255,0.065) 1px, transparent 1px);
}
/* 롤링 배너 */
.ww-roll-item { color: #1E2836; }
.ww-roll-dot { background: #2A3648; }
/* 1) 롤링 배너 */
.ww-roll-item { color: rgba(122,156,214,0.16); }
.ww-roll-dot { background: rgba(122,156,214,0.26); }
.publication::before,
.workwith::before {
    background-image:
      linear-gradient(to right, rgba(255,255,255,0.045) 1px, transparent 1px),
      linear-gradient(to bottom, rgba(255,255,255,0.045) 1px, transparent 1px);
    background-size: 64px 64px;
}
.workwith::before {
    -webkit-mask-image: none;
            mask-image: none;
}
.ww-roll-item { color: rgba(88,120,178,0.13); }
.ww-roll-dot { background: rgba(88,120,178,0.2); }
.ww-roll-track { animation-duration: 48s; }
.ww-roll-b .ww-roll-track { animation-duration: 62s; }
.ww-roll-track { animation-duration: 68s; }
.ww-roll-b .ww-roll-track { animation-duration: 86s; }
.publication::before,
.workwith::before {
    background-image:
      linear-gradient(to right, rgba(255,255,255,0.075) 1px, transparent 1px),
      linear-gradient(to bottom, rgba(255,255,255,0.075) 1px, transparent 1px);
}
.publication::before,
.workwith::before {
    background-image:
      linear-gradient(to right, rgba(255,255,255,0.06) 1px, transparent 1px),
      linear-gradient(to bottom, rgba(255,255,255,0.06) 1px, transparent 1px);
}
.workwith::before {
    -webkit-mask-image: linear-gradient(to bottom, #000 0%, #000 35%, rgba(0,0,0,0.5) 70%, transparent 96%);
            mask-image: linear-gradient(to bottom, #000 0%, #000 35%, rgba(0,0,0,0.5) 70%, transparent 96%);
}
.publication::before,
.workwith::before {
    background-image:
      linear-gradient(to right, rgba(255,255,255,0.055) 1px, transparent 1px),
      linear-gradient(to bottom, rgba(255,255,255,0.055) 1px, transparent 1px);
}
.publication::before,
.workwith::before {
    background-image:
      linear-gradient(to right, rgba(255,255,255,0.05) 1px, transparent 1px),
      linear-gradient(to bottom, rgba(255,255,255,0.05) 1px, transparent 1px);
}
/* ===== 국문 서체 ===== */
.s2-badge, .rsh-tag, .pub-cat, .ww-cat,
.fc-idx, .fc-title, .fc-txt,
.s2-title, .s2-sub, .s2-title .as-sub,
.rsh-title, .rsh-desc, .rsh-more,
.pub-name, .pub-filter, .pub-date, .pub-heading,
.ww-lead, .ww-desc-kr, .ww-col-kr,
.ft-kaeri em, .hero-tagline p, .hero-tagline em,
.text-left .subtitle, .hero-eyebrow .muted {
    font-family: 'Pretendard Variable', Pretendard, sans-serif;
    letter-spacing: -0.035em;
}
.rsh-tag, .s2-badge, .pub-cat, .ww-cat,
.fc-idx, .pub-filter, .pub-date, .pub-type,
.hero-eyebrow .muted {
    font-family: 'Chakra Petch', sans-serif;
}
.rsh-tag, .s2-badge, .pub-cat, .ww-cat,
.fc-idx, .pub-filter, .pub-filter .pub-count, .pub-date, .pub-date b, .pub-date i,
.pub-type, .pub-venue, .pub-idx, .pub-go,
.rsh-more, .rsh-more-label, .rsh-num,
.gnb a, .nav-text, .hero-eyebrow .muted,
.ww-roll-item, .ww-sub, .ww-sub b,
.ft-name, .ft-name em, .ft-info li, .ft-info b, .ft-info span, .ft-kaeri, .ft-copy {
    letter-spacing: 0;
}
.s2-badge, .rsh-tag, .pub-cat, .ww-cat { font-weight: 400; }
.s2-badge, .rsh-tag, .pub-cat, .ww-cat { font-weight: 500; }
/* 컨택어스 강조 */
.ww-lead em { font-style: normal; color: #6AA3F4; font-weight: 700; }

.ww-cat {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-family: 'Chakra Petch', sans-serif;
    font-size: 20px;
    font-weight: 600;
    letter-spacing: 0;
    color: rgba(226, 236, 248, 0.75);
}
.ww-cat i {
    width: 6px; height: 6px;
    flex: 0 0 auto;
    background: #6AA3F4;
    box-shadow: 0 0 12px rgba(106, 163, 244, 0.9);
}
.ww-cat b { font-weight: inherit; color: rgba(255, 255, 255, 0.92); }

/* ==========================================================
   ABOUT 섹션 타임라인 — 건너뛰기
   ========================================================== */
#index2_s2.s2-skip,
#index2_s2.s2-skip * {
    transition-duration: 0s !important;
    transition-delay: 0s !important;
    animation-duration: 0s !important;
    animation-delay: 0s !important;
}

/* ==========================================================
   PUBLICATION → CONTACT
   ========================================================== */
.workwith {
    z-index: 2;
    margin-top: calc(-1 * clamp(60px, 9vh, 130px));
}
.ww-wrap {
    transform: translateY(var(--ww-lag, 0px));
    will-change: transform;
}

.ww-globe {
    translate: 0 var(--ww-globe-lag, 0px);
    will-change: translate;
}

@media (max-width: 900px) {
    .workwith { margin-top: 0; }
}

/* ══ 폰 — 히어로 높이 ══ */
@media (max-width: 767px), (pointer: coarse) {
    #index2_s1, #index2_s1.mv { height: 100svh; }
}

/* ══ 폰 — 렌더링 부담 줄이기 ══ */
@media (max-width: 767px), (pointer: coarse) {
    .mv-video { filter: none; animation: none; }

    /* 블롭 */
    .mv-blob,
    .mv-blob.b1,
    .mv-blob.b2 { filter: none; mix-blend-mode: normal; animation: none; }

    #index2_s2 .s2-grain { animation: none; will-change: auto; }
    #index2_s3 .rt-grain { animation: none; will-change: auto; }

    .mv-grain { animation: none; will-change: auto; }

    .mv-head {
        -webkit-backdrop-filter: none;
                backdrop-filter: none;
        background: linear-gradient(to bottom, rgba(10,12,16,0.14) 0%, rgba(10,12,16,0.48) 100%);
    }
    .mv-marquee {
        -webkit-backdrop-filter: none;
                backdrop-filter: none;
        background: rgba(10,12,15,0.62);
    }

    /* 어바웃 카드 */
    .s2-card {
        -webkit-backdrop-filter: none;
                backdrop-filter: none;
        background:
            linear-gradient(155deg,
                rgba(106,163,244,0.11) 0%,
                rgba(255,255,255,0.05) 40%,
                rgba(255,255,255,0.028) 100%),
            rgba(12,15,20,0.7);
    }
    #index2_s2.s2-static .s2-card { will-change: auto; }
}

/* ══ 폰 — VIEW MORE 버튼 ══ */
@media (max-width: 767px) {
    .rt-more           { font-size: 15px; }
    .rt-more span      { padding: 10px 16px; }
    .rt-more i         { width: 42px; }
    .rt-more::before   { width: 42px; }
    .rt-more i svg     { width: 18px; height: 18px; }
}

/* ══ 폰 — WORK WITH US ══ */
@media (max-width: 767px) {
    .workwith { padding: 40px var(--etrl-gut) 48px; }

    .ww-stage { min-height: 340px; justify-content: center; align-items: center; }
    .ww-globe { width: min(84vw, 380px); }
    .ww-roll-item { font-size: 72px; }

    .ww-stage-copy { width: 100%; gap: 26px; }
    .ww-stage-copy .ww-cat { font-size: 16px; margin: 0 0 -8px; }
    .ww-lead { font-size: 26px; line-height: 1.45; }
    .ww-sub  { font-size: 16px; line-height: 1.55; }

    /* 버튼 */
    .ww-stage-copy .ww-cta { font-size: 14px; padding: 8px 20px; }
}

/* ══ 폰 — 어바웃 카드 ══ */
#index2_s2.s2-static .s2-card.rise-wait {
    opacity: 0;
    translate: 0 36px;
    transition: opacity 0.7s ease var(--rise-d, 0s),
                translate 0.9s cubic-bezier(0.16, 1, 0.3, 1) var(--rise-d, 0s),
                outline-color 0.45s ease, box-shadow 0.45s ease;
}
#index2_s2.s2-static .s2-card.rise-wait.is-rise { opacity: 1; translate: 0 0; }

/* ══ 폰 — 어바웃 문구 ══ */

/* 첫 문구 */
#index2_s2.s2-static .cs-title:not(.cs-title2) {
    font-size: 24px;
    line-height: 1.45;
    color: #F2F6FB;
}
#index2_s2.s2-static .cs-title:not(.cs-title2) .cs-em b { color: #6AA3F4; }

#index2_s2.s2-static .cs-title2 {
    font-size: 16px;
    font-weight: 400;
    line-height: 1.75;
    color: rgba(226,236,248,0.62);
    text-wrap: balance;
}
#index2_s2.s2-static .cs-title2 .cs-line,
#index2_s2.s2-static .cs-title2 .cs-line i,
#index2_s2.s2-static .cs-title2 .cs-em,
#index2_s2.s2-static .cs-title2 .cs-em b { display: inline; }
#index2_s2.s2-static .cs-title2 .cs-em b { color: rgba(255,255,255,0.92); font-weight: 600; }

#index2_s2.s2-static .cs-em { filter: none; }

#index2_s2.s2-static .cs-step:first-child { margin-bottom: 0; }
#index2_s2.s2-static .cs-step + .cs-step::before {
    content: '';
    display: block;
    width: 28px;
    height: 1px;
    margin: 20px auto 18px;
    background: rgba(106,163,244,0.6);
}

#index2_s2.s2-static .s2-grid { gap: 12px; }

/* ══ 폰 — 퍼블리케이션 목록 ══ */
@media (max-width: 767px) {
    .pb-row {
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
        align-items: center;
        gap: 10px 12px;
        text-align: center;
    }
    .pb-name { flex: 0 0 100%; text-wrap: balance; }
    .pb-go   { margin-top: 4px; }
}

/* ══ 리서치토픽 스와이프 힌트 ══ */
.rt-swipe { display: none; }
@media (max-width: 767px) {
    .rt-sticky { padding-bottom: 44px; }
    .rt-swipe {
        position: absolute;
        left: 0; right: 0; bottom: 14px;
        z-index: 5;
        display: flex;
        align-items: center;
        justify-content: center;
        gap: 10px;
        font-family: 'Chakra Petch', sans-serif;
        font-size: 13px;
        font-weight: 500;
        line-height: 1;
        color: rgba(226,236,248,0.6);
        pointer-events: none;
        transition: opacity 0.5s ease;
    }
    .rt-swipe b { font-weight: inherit; }
    .rt-swipe i {
        width: 7px; height: 7px;
        border-left: 1.5px solid #6AA3F4;
        border-bottom: 1.5px solid #6AA3F4;
        animation: rtSwipeL 1.6s ease-in-out infinite;
    }
    .rt-swipe i.l { rotate: 45deg; }
    .rt-swipe i.r { rotate: -135deg; animation-name: rtSwipeR; }
    #index2_s3.is-swiped .rt-swipe { opacity: 0; }
}
@keyframes rtSwipeL { 0%, 100% { translate: 0 0; } 50% { translate: -4px 0; } }
@keyframes rtSwipeR { 0%, 100% { translate: 0 0; } 50% { translate: 4px 0; } }
@media (prefers-reduced-motion: reduce) {
    .rt-swipe i { animation: none; }
}

@media (max-width: 767px) {
    .pb-list { border-top-color: rgba(255,255,255,0.26); }
    .pb-item { border-bottom-color: rgba(255,255,255,0.26); }
}

@media (max-width: 767px) {
    .pb-go     { width: 44px; height: 44px; }
    .pb-go svg { width: 18px; height: 18px; }
}

/* ══ 폰 — 고객 요청 (2026-09-21) ══ */
@media (max-width: 767px), (pointer: coarse) {
    /* 배경 영상 */
    .mv-video { object-position: 72% center; }

    /* 리서치 토픽 전환 */
    .rt-bg { transition: opacity 0.5s ease, transform 0.6s ease; }
    .rt-panel { transition: opacity 0.32s ease; }
    .rt-panel.is-on { transition: opacity 0.42s ease; }
    .rt.is-in .rt-panel.is-on .rt-tag,
    .rt.is-in .rt-panel.is-on .rt-sub,
    .rt.is-in .rt-panel.is-on .rt-desc,
    .rt.is-in .rt-panel.is-on .rt-ex li,
    .rt.is-in .rt-panel.is-on .rt-more {
        transition: opacity 0.42s ease, translate 0.42s ease;
        --d: 0s;
    }
    .rt-ex,
    .rt.is-in .rt-panel.is-on .rt-ex { clip-path: none; transition: none; }
}

/* ══ WORK TOGETHER 문구 — 자간 기본값 ══ */
.ww-lead,
.ww-lead em { letter-spacing: 0; }