@import url("https://cdn.jsdelivr.net/gh/orioncactus/pretendard@v1.3.9/dist/web/variable/pretendardvariable.min.css");
:root {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html,
body,
#root {
  height: 100%;
}
img,
picture,
video,
canvas,
svg {
  display: block;
  max-width: 100%;
}
input,
button,
textarea,
select {
  font: inherit;
}
a {
  color: inherit;
  text-decoration: none;
}
button {
  background: none;
  border: none;
  cursor: pointer;
}
ol,
ul {
  list-style: none;
}
table {
  border-collapse: collapse;
  border-spacing: 0;
}

/* 리셋 구문 */

/* 키프레임 */

@keyframes hov1 {
  0% {
    transform: scaleY(1);
  }
  30% {
    transform: scaleY(0.8) scaleX(1.2);
  }
  65% {
    transform: scaleY(1.1) scaleX(0.9) translateY(-8px);
  }
  85% {
    transform: scaleY(0.95) scaleX(1.01) translateY(0);
  }
  100% {
    transform: scaleY(1) scaleX(1) translateY(0);
  }
}

/* 키프레임 */

body {
  margin: 0;
  padding: 0;
  font-family: "Pretendard Variable", serif !important;
  letter-spacing: -0.05em !important;
  line-height: 1.25 !important;
  color: #2a2a2a !important;
  font-size: 16px;
}

div {
  font-family: "Pretendard Variable", serif !important;
  letter-spacing: -0.05em !important;
  line-height: 1.25 !important;
  color: #2a2a2a !important;
  font-size: 16px;
}

.f-family {
  font-family: "Pretendard Variable", serif !important;
}

.point {
  color: #854bb8;
}

.bold {
  font-weight: bold;
}

.regular {
  font-weight: 500;
}

.wrap {
  max-width: 860px;
  margin: 80px auto 0;
}

.header {
  width: 100%;
  padding: 0 80px;
}

.header h1 img {
  width: 60px;
  height: 18px;
}

@media screen and (max-width: 768px) {
  .wrap {
    max-width: 860px;
    margin: 30px auto 0;
  }

  .header {
    padding: 0 10px;
  }
}

/* part1 */
.part1 {
  width: 100%;
  padding: 80px;
  background-image: url(https://RAYLab2.github.io/RRA/img/symbol_ray_charactor.png);
  background-repeat: no-repeat;
  background-size: auto;
  background-position-x: 100%;
  background-position-y: 10%;
}

.part1_text {
  font-size: 48px;
  font-weight: bold;
}

@media screen and (max-width: 768px) {
  .part1 {
    padding-left: 10px;
    padding-right: 10px;
    background-size: 101%;
    background-position-x: -500%;
    background-position-y: 30%;
  }
  .part1_text {
    font-size: 36px;
  }
}

/* part2 */
.part2 {
  padding: 0 80px 60px;
  display: flex;
  flex-direction: column;
  gap: 18px;
  background-image: url(https://RAYLab2.github.io/RRA/img/line_row.png);
  background-repeat: no-repeat;
  background-size: contain;
  background-position-x: 0;
  background-position-y: bottom;
}

.part2 h2 {
  font-size: 24px;
}

.part2_text li {
  line-height: 30px;
}

.part2_about {
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.part2_about li {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 8px;
}

@media screen and (max-width: 768px) {
  .part2 {
    padding-left: 10px;
    padding-right: 10px;
  }
}

/* part3 */
.part3 {
  position: relative;
  padding-top: 110px;
}

.part3_title {
  position: absolute;
  top: 14%;
  left: 50%;
  transform: translateX(-50%);
  width: 390px;
  font-size: 24px;
  color: #fff !important;
  text-align: center;
  line-height: 70px;
  background-image: url(https://RAYLab2.github.io/RRA/img/bg_heading01.png);
  background-repeat: no-repeat;
  background-position-x: center;
  background-position-y: center;
  background-size: 390px 100px;
}

.part3 .list {
  display: grid;
  grid-template-columns: repeat(10, 1fr); /* 10칸으로 쪼갬 */
  justify-items: center;
  row-gap: 30px; /* 줄 간격은 취향껏 조절 */
  column-gap: 0; /* 필요하면 가로 간격도 조절 */
  background-image: url(https://RAYLab2.github.io/RRA/img/back-noti2.png);
  background-repeat: no-repeat;
  padding: 90px 60px 50px;
  background-position: center;
}

/* 기본: 모든 아이템이 2칸씩 차지 */
.part3 .list li {
  grid-column: span 2;
}

/* 두 번째 줄(6~9번)을 '완전 중앙'으로 재배치 */
.part3 .list li:nth-child(6) {
  grid-column: 2 / 4;
}
.part3 .list li:nth-child(7) {
  grid-column: 4 / 6;
}
.part3 .list li:nth-child(8) {
  grid-column: 6 / 8;
}
.part3 .list li:nth-child(9) {
  grid-column: 8 / 10;
}

.part3 .list li {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 4px;
  font-weight: 600;
  word-break: keep-all;
}

.part3 .list li img {
  transform-origin: bottom center;
  width: 6.25rem;
  height: 6.25rem;
}

.part3 .list li:hover img {
  animation: hov1 0.6s both;
}

@media screen and (max-width: 768px) {
  .part3 .list {
    padding-left: 10px;
    padding-right: 10px;
    grid-template-columns: repeat(3, 1fr);
    background-size: 260%;
  }
  .part3 .list li {
  grid-column: auto;
}

/* 두 번째 줄(6~9번)을 '완전 중앙'으로 재배치 */
.part3 .list li:nth-child(6) {
  grid-column: auto;
}
.part3 .list li:nth-child(7) {
  grid-column: auto;
}
.part3 .list li:nth-child(8) {
  grid-column: auto;
}
.part3 .list li:nth-child(9) {
  grid-column: auto;
}
}

/* part4 */
.part4 {
  padding: 80px 80px 0;
}

.part4_title {
  font-size: 20px;
  margin-bottom: 20px;
}

.office_photo1 {
  display: grid;
  gap: 10px;
  grid-template-columns: 1.4fr 0.6fr;
  grid-template-rows: 240px auto;
}

.office_photo2 {
  display: grid;
  gap: 10px;
  grid-template-columns: 0.8fr 1.2fr;
  grid-template-rows: 240px auto;
}

.photo_container {
  width: 100%;
  height: 100%;
  overflow: hidden;
  border-radius: 8px;
}

.photo_container img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

@media screen and (max-width: 768px) {
  .part4 {
    padding-left: 10px;
    padding-right: 10px;
  }
}

/* part5 */
.part5 {
  position: relative;
  padding-top: 110px;
}

.part5_title {
  position: absolute;
  top: 20%;
  left: 9%;
  width: 360px;
  font-size: 24px;
  color: #fff !important;
  line-height: 70px;
  background-image: url(https://RAYLab2.github.io/RRA/img/bg_heading02.png);
  background-repeat: no-repeat;
  background-position-x: center;
  background-position-y: center;
  background-size: 390px 100px;
  padding-left: 6%;
}

.part5 .list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  background-image: url(https://RAYLab2.github.io/RRA/img/bg_texture01.png);
  background-repeat: no-repeat;
  padding: 70px 100px 50px;
  background-position-x: center;
  background-position-y: center;
}
.part5 .list li {
  display: flex;
  gap: 36px;
  align-items: center;
}

@media screen and (max-width: 768px) {
  .part5_title {
    left: 0;
  }
  .part5 .list {
    padding-left: 30px;
    padding-right: 30px;
  }
  .part5 .list li {
    gap: 15px;
    word-break: keep-all;
  }
}

/* part6 */
.part6 {
  position: relative;
  padding-top: 110px;
}

.part6_title {
  position: absolute;
  top: 20%;
  left: 50%;
  transform: translateX(-50%);
  width: 290px;
  font-size: 24px;
  color: #fff !important;
  text-align: center;
  line-height: 70px;
  background-image: url(https://RAYLab2.github.io/RRA/img/bg_heading01.png);
  background-repeat: no-repeat;
  background-position-x: center;
  background-position-y: center;
  background-size: 290px 100px;
}

.part6 .list {
  display: flex;
  background-image: url(https://RAYLab2.github.io/RRA/img/back-noti2.png);
  background-repeat: no-repeat;
  padding: 90px 60px 50px;
  background-position-x: center;
  background-position-y: center;
  justify-content: center;
  align-items: center;
  gap: 20px;
}

.part6 .list li {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 10px;
  font-weight: 600;
  word-break: keep-all;
  height: 162px;
}

.part6 .list li img {
  width: 82px;
  height: 82px;
}
.part6 .list li:nth-child(even) {
  width: 18px;
  height: 73px;
}
.part6 .list li:nth-child(even) img {
  width: 18px;
  height: 18px;
}

.part6 .list li img {
  transform-origin: bottom center;
}

.part6 .list li:hover img {
  animation: hov1 0.6s both;
}

@media screen and (max-width: 768px) {
  .part6 .list {
    gap: 10px;
    flex-wrap: wrap;
    padding-left: 20px;
    padding-right: 20px;
  }
}

/* part7 */
.part7 {
  padding: 80px;
}

.part7 .list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

@media screen and (max-width: 768px) {
  .part7 {
    padding-left: 20px;
    padding-right: 20px;
    word-break: keep-all;
  }
}

/* part8 */
.part8 {
  position: relative;
  padding-top: 10%;
}
.part8_title_container {
  position: absolute;
  left: 0;
  top: 0;
}

.part8_title {
  position: relative;
  width: 450px;
  height: 230px;
  font-size: 24px;
  color: #fff !important;
  background-image: url(https://RAYLab2.github.io/RRA/img/bg_heading03.png);
  background-repeat: no-repeat;
  background-position-x: center;
  background-position-y: center;
  background-size: 450px 230px;
}

.title_1 {
  position: absolute;
  top: 37%;
  left: 46%;
  font-size: 24px;
  color: #2a2a2a;
}

.title_2 {
  position: absolute;
  top: 70%;
  left: 26%;
  font-size: 24px;
  text-align: center;
}

.part8 .list {
  display: flex;
  flex-direction: column;
  background-image: url(https://RAYLab2.github.io/RRA/img/bg_texture02.png);
  background-repeat: no-repeat;
  padding: 150px 80px 50px;
  background-position-x: center;
  background-position-y: center;
  gap: 40px;
}

.sub_title {
  display: flex;
  align-items: center;
  font-size: 20px;
  font-weight: bold;
  gap: 8px;
}

.sub_title img {
  width: 24px;
  height: 24px;
}

.part8 .list li {
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
}

.ending {
  width: 100%;
  height: 150px;
  text-align: right;
  padding: 14px;
  background-color: #854bb8;
  font-size: 20px;
  font-weight: 600;
  color: #fff !important;
}

@media screen and (max-width: 768px) {
  .part8_title_container {
    left: -30px;
    top: -50px;
  }

  .title_1 {
    /* top: 40%; */
  }

  .title_2 {
    /* top: 69%; */
    /* left: 29%; */
  }

  .part8 .list {
    padding-left: 20px;
    padding-right: 20px;
  }
}