/* 폰트 */
@import url("https://cdn.jsdelivr.net/gh/orioncactus/pretendard@v1.3.9/dist/web/static/pretendard.min.css");
@import url("https://cdn.jsdelivr.net/gh/orioncactus/pretendard@v1.3.9/dist/web/variable/pretendardvariable.min.css");

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
ul, li {
  list-style: none;
}
a {
  text-decoration: none;
}
body {
  width: 100%;
  font-family: "Pretendard Variable",'Pretendard', Pretendard, 'Noto Sans KR', -apple-system, BlinkMacSystemFont, system-ui, Roboto, "Helvetica Neue", "Segoe UI", "Apple SD Gothic Neo", "Noto Sans KR", "Malgun Gothic", "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", sans-serif;
}
img {
  width: 100%;
}

:root {
  --mainColor: #2357F7;
  --blue1Color: #001E51;
  --blue2Color: #0044B7;
  --yellowColor: #F7DE23;
  --lightBlue: #96FFF6;

  --borderLine: #DBDBDB;
}

.frame {
  width: 100%;
  display: flex;
  flex-direction: column;
  background-color: #000B18;
}
body::-webkit-scrollbar {
    display: none;
}
.frame::-webkit-scrollbar {
    display: none;
}

/* 1번째 영역 */
.artDiv1 {
  background-color: white;
  width: 100%;
  height: 100vh;
}

.artDivHeader {
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-bottom: 1px solid var(--borderLine);
}

.logoImg {
  height: 30px;
  width: auto;
  max-width: none;
  display: block;
  object-fit: contain;
}

.artDiv1Inner {
  width: 100%;
  height: 90%;
  background: radial-gradient(circle closest-side, #B8D1FF ,#fff);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
}

.artDiv1Text {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 35px;
  text-align: center;
  justify-content: center;
}

.mouseIcon {
  width: 38px;
  height: 58px;
  border: 3px solid #94b9ff;
  border-radius: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 5px 0;
  overflow: hidden;
}

.mouseScroll {
  width: 8px;
  height: 8px;
  background-color: #94b9ff;
  border-radius: 10px;
  animation: mouseScrollY 2s ease-in-out infinite;
}

/* Reveal on scroll */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: transform 700ms cubic-bezier(.2,.9,.2,1), opacity 700ms ease;
}
.reveal.in-view {
  opacity: 1;
  transform: translateY(0);
}

/* Sequential reveal for hero (.artDiv1Text) children */
.artDiv1Text > * {
  opacity: 0;
  transform: translateY(18px);
  transition: transform 700ms cubic-bezier(.2,.9,.2,1), opacity 700ms ease;
  will-change: transform, opacity;
}
.artDiv1Text > *.seq-in {
  opacity: 1;
  transform: translateY(0);
}

/* Generic seq-in for other sections */
.seq-in {
  opacity: 1 !important;
  transform: translateY(0) !important;
  transition: transform 700ms cubic-bezier(.2,.9,.2,1), opacity 700ms ease;
}

/* artDiv3 boxes initial state */
.artDiv3SubMore,
.artDiv3BoxMore > * {
  opacity: 0;
  transform: translateY(18px);
  transition: transform 3s cubic-bezier(.2,.9,.2,1), opacity 3s ease;
  will-change: transform, opacity;
}

/* Hover effects for boxes */
.artDiv2Box, .artDiv1Box {
  transition: transform 300ms ease, box-shadow 300ms ease, border-color 300ms ease;
}
.artDiv2Box:hover, .artDiv1Box:hover {
  transform: translateY(-5px);
  box-shadow: 0 18px 30px rgba(3,10,30,0.12);
  border-color: rgba(34,34,34,0.08);
}

/* Subtle pop for chat messages */
.artDivChatBox .artDivMessage{
  transition: transform 300ms ease, opacity 300ms ease;
}
.artDivChatBox.in-view .artDivMessage{
  transform: translateY(0);
  opacity: 1;
}

/* CTA ripple */
.drameGoBtn{ position: relative; overflow: hidden; }
.drameGoBtn .ripple{
  position: absolute;
  border-radius: 50%;
  transform: scale(0);
  background: rgba(255,255,255,0.55);
  animation: ripple 700ms ease-out;
  pointer-events: none;
}
@keyframes ripple{ to { transform: scale(4); opacity: 0; } }

/* Contact fixed hover emphasis */
.contactFixedBtn{ transition: transform 400ms ease, box-shadow 400ms ease; }
.contactFixedBtn:hover{ transform: translateY(-6px) rotate(-6deg); box-shadow: 0 20px 40px rgba(3,10,30,0.2); }

/* Responsive tuning for reveal animations */
@media (prefers-reduced-motion: reduce){
  .reveal, .artDiv2Box, .artDiv1Box, .contactFixedBtn { transition: none; animation: none; }
}

.artDiv1SubTit {
  color: var(--mainColor);
  font-weight: 600;
  font-size: 17px;
}

.artDiv1Tit {
  font-size: 45px;
  background: linear-gradient(to right top, #001E51, #0044B7);
  color: transparent;
  -webkit-background-clip: text;
  line-height: 140%;
  font-weight: 800;
}
.artDiv1Tit h1 {
  font-size: 45px;
  font-weight: 800;
}
.artDiv1Tit h2 {
  font-size: 45px;  
  font-weight: 800;
}
/* 항목 박스 */
.artDiv1BoxList {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
}

.artDiv1Box {
  height: 40px;
  padding: 0 15px 0 10px;
  background-color: white;
  border: 1px solid var(--borderLine);
  border-radius: 5px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 5px;
  cursor: default;
}
.artDiv1Box span {
  font-size: 15px;
  background: linear-gradient(to right top, #001E51, #0044B7);
  color: transparent;
  -webkit-background-clip: text;
  font-weight: 500;
}

.artBoxImg {
  width: 27px;
  height: 27px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.artDiv1Txt {
  color: #313131;
  font-size: 15px;
  line-height: 150%;
  font-weight: 500;
}

/* 2번째 영역 */
.artDiv2 {
  background-color: #F1F4F9;
  padding: 70px 0;
}

.artDiv2Inner {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 40px;
}

.artDiv2TopText {
  display: flex;
  flex-direction: column;
  gap: 10px;
  text-align: center;
}

.artDiv2Tit {
  color: #222;
  font-weight: 700;
  font-size: 28px;
}

.artDiv2Txt {
  color: #8A8A8A;
  font-size: 15px;
}

/* 채팅 영역 */
.artDiv2ChatBox {
  width: 80%;
  max-width: 1150px;
  background-color: #f3f3f3;
  border: 1px solid var(--borderLine);
  border-radius: 10px;
  padding: 20px 15px;
}

.artDivChatList {
  display: flex;
  flex-direction: column;
  gap: 15px;
}

.artDivChatBox {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.artDivChatAi {
  align-items: start;
}
.artDivChatMe {
  align-items: end;
}

.artDivChatProfile {
  display: flex;
  align-items: center;
  gap: 7px;
  color: var(--mainColor);
  font-weight: 600;
  font-size: 15px;
}

.artDivChatImg {
  width: 26px;
  height: 26px;
  background: linear-gradient(to right, #2E3092, #00AEEF);
  border-radius: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 12px;
  font-weight: 700;
}

.artDivMessage {
  min-height: 40px;
  background-color: white;
  padding: 8px 15px;
  border-radius: 5px;
  font-size: 14px;
  line-height: 160%;
  color: #333;
  font-weight: 500;
}

.artDivChatAi .artDivMessage {
  border: 1px solid var(--borderLine);
}
.artDivChatMe .artDivMessage {
  background: linear-gradient(to right, #001E51, #0044B7);
  color: white;
}

.artDivChatAi .artDivMessage:has(.dot) {
  display: flex;
}

.dot {
  width: 7px;
  height: 7px;
  background-color: #999;
  border-radius: 10px;
}
.dotList {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px
}

.dotList .dot {
  will-change: transform, opacity;
  transform: translateY(0);
  opacity: 0.45;
}

.dotList .dot:nth-child(1) {
  animation: dotJump 2s cubic-bezier(.2,.6,.4,1) infinite 0s;
}
.dotList .dot:nth-child(2) {
  animation: dotJump 2s cubic-bezier(.2,.6,.4,1) infinite 0.15s;
}
.dotList .dot:nth-child(3) {
  animation: dotJump 2s cubic-bezier(.2,.6,.4,1) infinite 0.3s;
}

@keyframes dotJump {
  0% {
    opacity: 0.45;
  }
  25% {
    opacity: 1;
  }
  50% {
    opacity: 0.7;
  }
  100% {
    opacity: 0.45;
  }
}

@keyframes mouseScrollY {
  0% {
    transform: translateY(-8px);
    opacity: 0.95;
  }
  50% {
    transform: translateY(8px);
    opacity: 0.3;
  }
  100% {
    transform: translateY(-8px);
    opacity: 0.95;
  }
}

/* 항목 영역 */
.artDiv2BoxList {
  display: flex;
  align-items: center;
  gap: 10px;
}

.artDiv2Box {
  width: 280px;
  height: 280px;
  border: 1px solid var(--borderLine);
  background-color: white;
  border-radius: 10px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: 15px;
  padding: 10px;
}

.artDiv2BoxImg {
  width: 100px;
  height: 100px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.artDiv2Box .artDiv2Txt {
  height: 65px;
  font-size: 14px;
  line-height: 150%;
  word-break: keep-all;
  padding: 0 10px;
}
.artDiv2Box .artDiv2Tit {
  font-size: 18px;
  color: var(--blue2Color);
}

/* 3번째 영역 */
.artDiv3 {
  background: linear-gradient(to bottom, #001E51, #0044B7);
}

.artDiv3Inner {
  width: 100%;
  height: 100%;
  padding: 6% 0;
  background-image: url(/img/pageAi/artDiv3Back.png);
  background-size: cover;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 60px;
}

.artDiv3TopText {
  display: flex;
  flex-direction: column;
  gap: 10px;
  text-align: center;
}
.artDiv3SubTit {
  color: var(--yellowColor);
  font-weight: 600;
  font-size: 17px;
}
.artDiv3Tit {
  color: white;
  font-weight: 700;
  font-size: 28px;
}
.artDiv3Txt {
  color: #CACACA;
  font-size: 15px;
}

.artDiv3Contents {
  display: flex;
  flex-direction: column;
  gap: 60px;
}

.artDiv3ContentMore {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 25px;
}

.artDiv3Side {
  display: flex;
  flex-direction: column;
  gap: 30px;
}

.artDiv3SubMore {
  display: flex;
  align-items: center;
  gap: 25px;
}

.artDiv3SubPlus {
  width: 50px;
  height: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.artDiv3BoxCenter {
  background: linear-gradient(to bottom, #151E61, #2B3EC7);
  padding: 25px 30px;
  box-shadow: inset 4px 4px 4px rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 5px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}

.artDiv3BoxCenterTit {
  color: var(--yellowColor);
  font-weight: 700;
  text-align: center;
  font-size: 22px;
  margin: 0 0 20px 0;
}

.artDiv3BoxCenterInner {
  display: flex;
  flex-direction: column;
  gap: 20px;
  background: linear-gradient(to bottom, #151E61, #2B3EC7);
  box-shadow: inset 4px 4px 4px rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 5px;
  padding: 20px;
  align-items: center;
}

.artDiv3Box1 .artDiv3SubPlus {
  transform: scaleX(-1) !important;
}


.artDiv3Box2 .artDiv3SubPlus {
  transform: scaleX(-1) !important;
}
.aiList {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
}
.aiList span {
  color: #CACACA;
  font-size: 14px;
  font-weight: 500;
}

.aiBox {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}

.aiTit {
  color: var(--yellowColor);
  font-size: 15px;
  font-weight: 500;
}

.aiBox img {
  width: auto;
  height: 40px;
}

.aiBoxList {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.aiTextBox {
  width: 380px;
  text-align: center;
  line-height: 40px;
  color: var(--lightBlue);
  background-color: black;
  border: 1px solid var(--lightBlue);
  border-radius: 5px;
}

.plusText {
  font-size: 40px;
  background: linear-gradient(to right top, #FFF2C9, #D3AD2D);
  color: transparent;
  -webkit-background-clip: text;
  font-weight: 700;
}

.aiSubTit {
  color: #CACACA;
  font-size: 14px;
  font-weight: 500;
}

.aiBoxBottomList {
  flex-direction: row;
}

.aiBoxBottomList .aiTextBox {
  width: 120px;
}

.artDiv3BoxSub {
  background-color: white;
  border-radius: 5px;
  width: 280px;
  height: 280px;
  display: flex;
  flex-direction: column;
  gap: 15px;
  align-items: center;
  justify-content: center;
  text-align: center;
}

.artDivSubTop {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}
.artDivSubTop > p:first-child {
  color: #121212;
  font-weight: 700;
  font-size: 16px;
}

.artDiv3SubImg {
  width: 70px;
  height: 70px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.artDiv3SubList {
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}

.artDiv3SubBox {
  width: 80%;
  height: 35px;
  background: linear-gradient(to right, #2E3092, #00AEEF);
  line-height: 35px;
  color: white;
  font-weight: 500;
  font-size: 14px;
  border-radius: 3px;
  text-shadow: 0 0 2px rgba(0, 0, 0, 0.8);
}

.artDiv3BoxMore {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
}

.artDiv3TextBox {
  background: linear-gradient(to bottom, #001E51, #0044B7);
  height: 45px;
  width: 180px;
  color: var(--yellowColor);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
  font-weight: 600;
  box-shadow: 0 0 3px rgba(0, 0, 0, 0.5);
  text-shadow: 0 0 2px rgba(0, 0, 0, 0.8);
}

/* 문의 고정 버튼 */
.contactFixed {
  width: 110px;
  height: 110px;
  position: fixed;
  bottom: 5%;
  right: 3%;
  z-index: 9;
  background: none;
}

.contactFixedBtn {
  background: linear-gradient(to bottom, #3961FE 0%, #1C3DC2 100%);
  border-radius: 150px;
  box-shadow: 0 0 5px rgba(0, 0, 0, 0.5);
  width: 100%;
  height: 100%;
  position: relative;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}

.fixedTxt {
  width: 94%;
  height: 94%;
  position: absolute;
  top: 3%;
  left: 3%;
  animation: fixedTxtMove 15s infinite linear;
  transform-origin:center center;
}

@keyframes fixedTxtMove {
  0% {
    transform: translate(0%, 0%) rotate(0deg);
  }
  100% {
    transform: translate(0%, 0%) rotate(360deg);
  }
}

.fixedImg {
  width: 25px;
  position: absolute;
  left: 38%;
  top: 29%;
}


/* 하단 버튼 영역 */
.bannerBtnMore {
  width: 100%;
  height: 340px;
  background-image: url(/img/bannerBack.png);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 30px;
  text-align: center;
}

.bannerBtnText {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.bannerBtnTit {
  color: #ACE3FF;
  font-size: 30px;
  font-weight: 700;
}
.bannerBtnTit span {
  color: #FFE75E;
}
.bannerBtnTxt {
  color: white;
  font-size: 17px;
}

.drameGoBtn {
  padding: 10px 30px;
  border: 1px solid #ACE3FF;
  color: #ACE3FF;
  font-size: 15px;
  font-weight: 500;
  border-radius: 5px;
}
.drameGoBtn:hover {
  background-color: #FFE75E;
  color: #000B18;
  border: 1px solid #FFE75E;
  transition: 0.8s;
}


/* 푸터 */
footer {
  width: 100%;
  height: 60px;
  border-top: 1px solid #E3E3E3;
  background-color: white;
}
.footInner {
  width: 80%;
  height: 100%;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 50px;
}

.footText {
  display: flex;
  align-items: center;
  gap: 20px;
  font-size: 14px;
  color: #8A8A8A;
  font-weight: 400;
  flex-wrap: wrap;
}

.artDiv3Mobile {
  display: none;
}

@media screen and  (max-width : 1200px) {
  .contactFixed {
    width: 100px;
    height: 100px;
  }
  .fixedImg {
    width: 20px;
    left: 40%;
    top: 31%;
  }
}

@media screen and  (max-width : 1024px) {
  .contactFixed {
    padding: 0;
    width: 80px;
    height: 80px;
  }

  .fixedImg {
    width: 15px;
    left: 41%;
  }

  /* 푸터 */
  footer {
    height: fit-content;
    padding: 15px 0;
  }
  .footInner {
    flex-direction: column;
    gap: 15px;
  }
  .footText {
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px;
  }
}

@media screen and  (max-width : 800px) {
  .bannerPCImg {
    display: none;
  }
  .bannerTabletImg {
    display: flex;
  }
  .bannerMobileImg {
    display: none;
  }

  .bannerBtnTit {
    font-size: 26px;
  }
  .bannerBtnTxt {
    font-size: 15px;
    word-break: keep-all;
  }
}

@media screen and  (max-width : 600px) {
  .bannerPCImg {
    display: none;
  }
  .bannerTabletImg {
    display: none;
  }
  .bannerMobileImg {
    display: flex;
  }

  .bannerBtnTit {
    font-size: 20px;
    word-break: keep-all;
  }

  .bannerBtnTxt {
    width: 90%;
    margin: 0 auto;
    font-size: 14px;
  }

  .drameGoBtn {
    font-size: 14px;
  }

  .footText {
    font-size: 13px;
    text-align: center;
  }
}

/* Responsive: up to 1440px */
@media screen and (max-width: 1440px) {
  .artDiv1Tit h1, .artDiv1Tit h2 { font-size: 40px; }
  .artDiv3Inner { gap: 50px; }
  .aiTextBox { width: 280px; }
  .aiBoxBottomList .aiTextBox {
    width: 90px;
  }
  .artDiv2Box {
    width: 250px;
    height: 250px;
  }
  .artDiv2Box .artDiv2Txt {
    font-size: 12px;
  }
  .artDiv2Box .artDiv2Tit {
    font-size: 15px;
  }
  .artDiv2BoxImg {
    width: 70px;
    height: 70px;
  }
}

@media screen and (max-width: 1200px) {
  .artDiv3SubBox {
    font-size: 13px;
    line-height: 30px;
    height: 30px;
  }
  .artDiv3BoxSub {
    width: 240px;
    height: 240px;
  }
  .artDiv3SubImg {
    width: 50px;
    height: 50px;
  }
  .artDiv2Box {
    width: 230px;
    height: 230px;
  }
  .artDiv2BoxImg {
    width: 50px;
    height: 50px;
  }
  .artDiv2Box .artDiv2Txt {
    height: 70px;
  }
  .aiTextBox {
    width: 240px;
  }
}

/* Responsive: up to 1024px */
@media screen and (max-width: 1024px) {
  .artDiv1Inner { height: 88%; }
  .artDiv1Tit h1, .artDiv1Tit h2 { font-size: 38px; }
  .artDiv1Text { gap: 24px; }
  .artDiv2Box { width: 230px; height: 230px; }
  .artDiv2ChatBox { width: 90%; }
  .aiTextBox { width: 280px; }
  .artDiv3Inner { padding: 15% 0; gap: 40px; }

  .artDiv3ContentMore {
    flex-direction: column;
  }
  .artDiv3Side {
    flex-direction: row;
  }
  .artDiv3SubMore {
    flex-direction: column;
  }
  .artDiv2BoxList {
    display: grid;
    grid-template-columns: 1fr 1fr;
  }
}

/* Responsive: up to 800px */
@media screen and (max-width: 800px) {
  .artDiv1Tit h1, .artDiv1Tit h2 { font-size: 34px; }
  .artDiv1Txt { font-size: 14px; }
  .artDiv1Text { gap: 18px; }
  .mouseIcon { width: 34px; height: 50px; }
  .mouseScroll { width: 7px; height: 7px; }
  .artDiv2Box { width: 220px; height: 220px; }
  .artDiv3ContentMore { gap: 18px; }
  .aiTextBox { width: 260px; line-height: 36px; }
  .artDiv1Tit {
    line-height: 100%
  }
  .artDiv3Tit, .artDiv2Tit {
    font-size: 18px;
    word-break: keep-all;
  }
  .artDiv3Txt {
    font-size: 13px;
    padding: 0 10px;
    word-break: keep-all;
  }
  .artDiv3BoxMore {
    flex-direction: column;
  }
  .artDiv3TextBox  {
    width: 100%;
  }
  .artDiv3Contents {
    gap: 40px;
  }

  .artDiv3BoxCenter {
    width: 100%;
  }
  .artDiv3Contents {
    width: 100%;
  }
  .artDiv3BoxCenterInner {
    width: 90%;
  }

  .artDiv3PcSide {
    display: none;
  }
  .artDiv3Mobile {
    display: flex;
    flex-direction: column;
    gap: 10px;
    align-items: center;
  }  
  .artDiv3Mobile .artDiv3SubPlus {
    transform: rotate(90deg);
  }
  .artDiv3MobileList {
    width: 100%;
    display: grid;
    grid-template-columns: 1fr 1fr;
    grid-template-rows: 1fr 1fr;
    gap: 10px;
  }
  .artDiv3Mobile .artDiv3SubMore {
    opacity: 1;
  }

  .artDiv3BoxSub {
    width: 100%;
  }

  .artDiv1BoxList {
    flex-direction: column;
  }
}

/* Responsive: up to 600px */
@media screen and (max-width: 600px) {
  .artDiv3Inner {
    padding: 15% 20px;
  }
  
  .aiBoxBottomList {
    flex-direction: column;
  }
  .artDiv3BoxMore {
    gap: 10px;
  }
  .artDiv1Tit h1, .artDiv1Tit h2 { font-size: 28px; }
  .artDiv1Inner { height: 82%; padding: 20px 0; }
  .artDiv1Text { gap: 14px; }
  .artDiv1Txt, .artDiv2Txt { font-size: 13px; padding: 0 10px; word-break: keep-all; }
  .artDiv2Box { width: 200px; height: 200px; }
  .aiTextBox {
    font-size: 14px;
  }
  .artDiv3SubList {
    padding: 0 10px;
  }
  .artDiv3SubBox {
    width: 100%;
    padding: 5px 10px;
    min-height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: normal;
    height: auto;
  }
  .aiTextBox { width: 220px; }
  .bannerBtnMore { height: 300px; }
  .contactFixed { width: 88px; height: 88px; bottom: 4%; right: 4%; }

  .artDivMessage {
    font-size: 12px;
  }
  .artDiv1Box {
    width: 200px;
  }
  .artDiv1Tit {
    line-height: 80%
  }
  .artDiv3BoxCenter {
    padding: 30px 10px;
  }
  .artDiv3BoxCenterTit {
    font-size: 16px;
    margin: 0 0 10px 0;
  }
  .plusText {
    font-size: 30px;
  }
  .artDiv3Side {
    gap: 10px
  }

  .artDiv1SubTit {
    font-size: 14px;
  }
  .artDiv3TextBox {
    font-size: 14px;
  }


}

/* Responsive: up to 500px (small phones) */
@media screen and (max-width: 500px) {
  .logoImg {
    height: 25px;
  }
  .artDiv1Tit h1, .artDiv1Tit h2 { font-size: 22px; }
  .artDiv1Inner { height: 78vh; }
  .artDiv1Text { gap: 20px; padding: 0 12px; }
  .artDiv1Txt { font-size: 12px; }
  .artDiv1BoxList { flex-direction: column; gap: 8px; }
  .artDiv2BoxList { flex-direction: column; gap: 12px; }
  .artDiv2Box {
    width: 160px;
    height: 160px; 
  }
  .artDivMessage {
    min-height: auto;
  }
  .artDivChatProfile {
    font-size: 13px;
  }
  .artDiv2Box .artDiv2Txt {
    display: none;
  }
  .artDiv3SubBox {
    word-break: keep-all;
  }
  .artDivSubTop > p:first-child {
    font-size: 14px;
  }
  
    
  .artDiv3ContentMore { flex-direction: column; gap: 16px; }
  .aiTextBox { width: 180px; line-height: 32px; }
  .bannerBtnMore { height: 260px; }
  .footInner { width: 90%; gap: 12px; }
  .footText { font-size: 12px; gap: 8px; }
  .contactFixed { width: 72px; height: 72px; bottom: 3%; right: 3%; }
}