/* ==========================================================================
   about-ys.css — /about-us 整页按 yishion.uunn.com/about 视觉/交互重做
   全部规则收敛在 .aboutYs 作用域内（ys 前缀），避免与全局 .about .r1~.r5
   旧规则冲突。rem 基准沿用全站 html font-size 体系。
   ========================================================================== */

.aboutYs {
  width: 100%;
  position: relative;
  z-index: 2;
  background-color: #fff;
  /* 注意：不能加 overflow:hidden，否则 r4 的 position:sticky 时间线会失效；
     横向裁剪由 .ysR4>.inner 自己的 overflow:hidden 承担 */
}

.aboutYs .f-72 { font-size: .72rem; }
.aboutYs .mc { color: var(--main); }

/* 英文小字（参考站 b_mid 的通用替代） */
.aboutYs .ysEn {
  letter-spacing: .08em;
  text-transform: uppercase;
  font-weight: 500;
}

/* --------------------------------------------------------------------------
   layer-til 区块标题：EN 小字 3D 翻转 + 中文逐字旋转显现（.go 触发）
   -------------------------------------------------------------------------- */
.aboutYs .layer-til {
  position: relative;
  display: inline-block;
  perspective: 5rem;
}
.aboutYs .layer-til > small {
  position: relative;
  z-index: 10;
  display: block;
  margin: .2rem 0;
  color: var(--black);
  opacity: 0;
  transform: rotateX(-5deg) rotateY(-5deg) rotate(3deg) translateY(30%);
  transform-origin: 0 120%;
  transition: opacity 1.2s var(--ease), transform 1.2s var(--ease);
  transition-delay: .3s;
}
.aboutYs .layer-til h2 {
  line-height: 1;
  display: flex;
  justify-content: flex-start;
  align-items: flex-start;
  position: relative;
  z-index: 10;
  color: var(--black);
}
.aboutYs .layer-til h2 .letter {
  display: block;
  opacity: 0;
  transform-origin: 0 50%;
  transition: opacity 1.2s var(--ease), transform 1.2s var(--ease);
  transition-delay: .1s;
}
.aboutYs .layer-til h2 .letter:nth-child(1) { transform: translate3d(.2rem, 0, 0) rotate(1deg); }
.aboutYs .layer-til h2 .letter:nth-child(2) { transform: translate3d(.3rem, 0, 0) rotate(2deg); }
.aboutYs .layer-til h2 .letter:nth-child(3) { transform: translate3d(.4rem, 0, 0) rotate(3deg); }
.aboutYs .layer-til h2 .letter:nth-child(4) { transform: translate3d(.5rem, 0, 0) rotate(4deg); }
.aboutYs .layer-til h2 .letter:nth-child(5) { transform: translate3d(.6rem, 0, 0) rotate(5deg); }
.aboutYs .layer-til h2 .letter:nth-child(6) { transform: translate3d(.7rem, 0, 0) rotate(6deg); }
.aboutYs .layer-til h2 .letter:nth-child(7) { transform: translate3d(.8rem, 0, 0) rotate(7deg); }
.aboutYs .layer-til h2 .letter:nth-child(8) { transform: translate3d(.9rem, 0, 0) rotate(8deg); }
.aboutYs .layer-til h2 .letter:nth-child(9) { transform: translate3d(1rem, 0, 0) rotate(9deg); }
.aboutYs .layer-til h2 .letter:nth-child(10) { transform: translate3d(1.1rem, 0, 0) rotate(10deg); }
.aboutYs .layer-til.go > small { transform: none; opacity: 1; }
.aboutYs .layer-til.go h2 .letter { transform: none; opacity: 1; }

/* --------------------------------------------------------------------------
   banner：全屏底图（进场推近）+ 居底标题
   -------------------------------------------------------------------------- */
.aboutYs .ysBanner {
  width: 100%;
  overflow: hidden;
  z-index: 8;
  height: 100vh;
  position: relative;
  background-color: #fff;
}
.aboutYs .ysBanner .bg {
  width: 100%;
  height: 100%;
  left: 0;
  top: 0;
  position: absolute;
  z-index: 1;
}
.aboutYs .ysBanner .layer-photo {
  width: 100%;
  display: block;
  height: 100%;
  transform: translate3d(0, 5%, 0) scale(1.08);
  transform-origin: 50% 100%;
  transition: transform 3s var(--ease);
}
.aboutYs .ysBanner .layer-photo .ysPic {
  width: 100%;
  height: 100%;
  background-size: cover;
  background-repeat: no-repeat;
  background-position: top center;
}
.aboutYs .ysBanner .bg.go .layer-photo { transform: translateZ(0); }

/* 复用新闻中心 Banner 的紫色弧线与扫光 */
.aboutYs .ysBanner .ysNewsArc,
.aboutYs .ysBanner .bannerArc {
  position: absolute;
  bottom: -2vw;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
  pointer-events: none;
  opacity: 0;
  transform: scale(1.2);
  transform-origin: 50% 100%;
  transition: opacity 2s var(--ease), transform 2s var(--ease);
}
.aboutYs .ysBanner .bannerArc:before { z-index: 2; }
.aboutYs .ysBanner .bannerArc > .line,
.aboutYs .ysBanner .bannerArc > .light {
  position: absolute;
  z-index: 3;
  width: calc(100% + 6vw);
  left: -3vw;
}
.aboutYs .ysBanner .bannerArc > .line { bottom: 0; }
.aboutYs .ysBanner .bannerArc > .light {
  bottom: -.2vw;
  transform: rotate(120deg);
  transition: opacity 2s var(--ease), transform 2s var(--ease);
}
.aboutYs .ysBanner .bannerArc.go {
  opacity: 1;
  transform: scale(1);
}
.aboutYs .ysBanner .bannerArc.go > .light { transform: rotate(0); }

.aboutYs .ysBanner .inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-end;
  height: 100%;
  width: 100%;
  padding-top: 8%;
  padding-bottom: 1.5rem;
  position: relative;
  z-index: 10;
  background: linear-gradient(180deg, rgba(0, 0, 0, 0) 50%, rgba(0, 0, 0, .4) 100%);
}
.aboutYs .ysBanner .inner:after {
  content: "";
  position: absolute;
  width: 100%;
  z-index: 10;
  height: 40%;
  left: 0;
  top: 0;
  pointer-events: none;
  background: linear-gradient(180deg, rgba(0, 0, 0, .3) 0%, rgba(0, 0, 0, 0) 80%);
}
.aboutYs .ysBanner .inner h1,
.aboutYs .ysBanner .inner p {
  position: relative;
  z-index: 2;
}
.aboutYs .ysBanner .inner p { margin-top: .2rem; }

/* 全站逐字动画默认强制 line-height:.9，并常与 overflow:hidden 叠加。
   企业简介的中文字体会因此被削掉上下笔画；在本页恢复安全行高。 */
.aboutYs [data-text].alanGo {
  line-height: 1.15 !important;
  overflow: visible;
  padding-block: .08em;
}

/* --------------------------------------------------------------------------
   r1 集团概况：左侧大字标语 + 右侧简介
   -------------------------------------------------------------------------- */
.aboutYs .ysR1 { padding: 2.2rem 0; }
.aboutYs .ysR1 .ysR1Slide {
  position: relative;
  padding: 3.2rem 0 2.4rem;
  overflow: hidden;
  min-height: 6.4rem;
}
.aboutYs .ysR1 .ysR1Bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  opacity: .55;
  pointer-events: none;
}
.aboutYs .ysR1 .ysR1Slide.hasBg .ysR1Bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    90deg,
    rgba(255, 255, 255, .72) 0%,
    rgba(255, 255, 255, .48) 55%,
    rgba(255, 255, 255, .28) 100%
  );
}
.aboutYs .ysR1 .ysR1Slide > .inner { position: relative; z-index: 1; }
.aboutYs .ysR1 .inner {
  position: relative;
  display: flex;
  align-items: center;
  min-height: inherit;
}
.aboutYs .ysR1 .inner .left { width: 42%; flex: 0 0 auto; }
.aboutYs .ysR1 .ysSlogan,
.aboutYs .ysR1 .ysSlogan span {
  display: block;
  font-size: .56rem;
  line-height: 1.35;
  font-weight: 700;
  color: var(--main);
  letter-spacing: .04em;
}
.aboutYs .ysR1 .ysSlogan span { display: inline; }
.aboutYs .ysR1 .inner .msg { width: 50%; margin-left: auto; }
.aboutYs .ysR1 .inner .msg h2 { margin-bottom: .2rem; color: var(--black); }
.aboutYs .ysR1 .inner .msg .ysEn {
  display: block;
  margin-bottom: .55rem;
  color: var(--gray);
  letter-spacing: .02em;
}
.aboutYs .ysR1 .inner .msg p { color: var(--black); line-height: 1.9; margin-bottom: .35rem; }
/* 多条 target：轮播 + 箭头叠在模块内右下角 */
.aboutYs .ysR1.ysR1Pager { padding: 0; position: relative; }
.aboutYs .ysR1.ysR1Pager .swiper { width: 100%; overflow: hidden; }
.aboutYs .ysR1.ysR1Pager .swiper-slide { height: auto; }
.aboutYs .ysR1.ysR1Pager .ysR1Slide { padding-bottom: 1.6rem; min-height: 6.8rem; }
.aboutYs .ysR1:not(.ysR1Pager) { padding: 0; }
.aboutYs .ysR1.ysR1Pager .ysR1Nav {
  position: absolute;
  left: 0;
  right: 0;
  bottom: .35rem;
  margin: 0 auto;
  padding: 0 .15rem;
  width: 100%;
  gap: .12rem;
  justify-content: flex-end;
  z-index: 3;
  box-sizing: border-box;
  pointer-events: none;
}
.aboutYs .ysR1.ysR1Pager .ysR1Nav > a {
  pointer-events: auto;
}

/* --------------------------------------------------------------------------
   r2 数据统计：全屏固定背景 + countUp
   -------------------------------------------------------------------------- */
.aboutYs .ysR2 {
  width: 100%;
  overflow: hidden;
  height: 100vh;
  position: relative;
}
@media screen and (orientation: landscape) {
  .aboutYs .ysR2 { max-height: 56.25vw; }
}
.aboutYs .ysR2 .bg { position: absolute; inset: 0; z-index: 1; pointer-events: none; }
.aboutYs .ysR2 .bg .ysPic {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-repeat: no-repeat;
  background-position: center;
  background-attachment: fixed;
}
.aboutYs .ysR2 .bg:after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 7;
  background: linear-gradient(180deg, rgba(0, 0, 0, 0) 40%, rgba(0, 0, 0, .7) 100%);
}
.aboutYs .ysR2 .inner {
  position: relative;
  z-index: 10;
  display: grid;
  grid-template-columns: repeat(4, auto);
  justify-content: space-between;
  height: 100%;
  align-items: end;
  padding-bottom: 1.2rem;
}
.aboutYs .ysR2 .inner .box > div { line-height: 1; position: relative; }
.aboutYs .ysR2 .inner .box .clear { font-size: inherit; color: transparent; }
.aboutYs .ysR2 .inner .box .count {
  position: absolute;
  bottom: 0;
  left: 0;
  font-size: inherit;
  font-style: normal;
  line-height: 1;
  color: #fff;
}
.aboutYs .ysR2 .inner .box sub { font-size: .24rem; color: #fff; vertical-align: baseline; }
.aboutYs .ysR2 .inner .box h3 { margin-top: .4rem; text-align: center; }

/* --------------------------------------------------------------------------
   r3 集团优势：图片卡 hover 展开描述
   -------------------------------------------------------------------------- */
.aboutYs .ysR3 {
  padding: 1.6rem .15rem .15rem;
  width: 100%;
  overflow: hidden;
  position: relative;
}
.aboutYs .ysR3 .inner { width: 100%; position: relative; }
.aboutYs .ysR3 .inner .layer-til { margin-bottom: .6rem; padding-left: 2.4rem; }
.aboutYs .ysR3 .inner .group {
  gap: .15rem;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
}
/* >3 条：横屏 Swiper 分页（每页 3） */
.aboutYs .ysR3 .inner .group.ysR3Sw {
  display: block;
  position: relative;
  overflow: hidden;
}
.aboutYs .ysR3 .inner .group.ysR3Sw .swiper { overflow: hidden; width: 100%; }
.aboutYs .ysR3 .inner .group.ysR3Sw .swiper-slide { height: auto; }
.aboutYs .ysR3 .inner .group.ysR3Sw .box { width: 100%; }
.aboutYs .ysR3 .inner .ysR3Nav {
  margin-top: .35rem;
  padding-right: .15rem;
  gap: .12rem;
  justify-content: flex-end;
}
.aboutYs .ysR3 .inner .group .box {
  height: 8rem;
  position: relative;
  /* 与全局 .layer-photo 的 .3rem 一致，避免 5px 把原圆角裁小 */
  border-radius: 0.3rem;
  overflow: hidden;
}
.aboutYs .ysR3 .inner .group .box .layer-photo { width: 100%; height: 100%; }
.aboutYs .ysR3 .inner .group .box .layer-photo .ysPic {
  width: 100%;
  height: 100%;
  background-size: cover;
  background-repeat: no-repeat;
  background-position: center;
  transition: transform 1.2s var(--ease);
}
@media screen and (orientation: landscape) {
  .aboutYs .ysR3 .inner .group .box:hover .layer-photo .ysPic { transform: scale(1.06); }
}
.aboutYs .ysR3 .inner .group .box .msg {
  padding: .6rem;
  position: absolute;
  height: 50%;
  width: 100%;
  bottom: 0;
  left: 0;
  text-align: center;
  background: linear-gradient(180deg, rgba(0, 0, 0, 0) 0%, rgba(0, 0, 0, .7) 100%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  border-radius: 0 0 0.3rem 0.3rem;
  transition: height .5s var(--ease), background .5s var(--ease), border-radius .5s var(--ease);
}
.aboutYs .ysR3 .inner .group .box .msg small {
  display: block;
  width: 100%;
  text-align: center;
  margin-top: .1rem;
  color: #fff;
}
/* 描述：默认收起；hover 时信息层整卡展开、文字纯白渐显，不会被裁切/遮挡
   （全局 `*{color:var(--black)}` 会命中子 span，必须显式覆盖到 span 级） */
.aboutYs .ysR3 .inner .group .box .msg .ysDesc,
.aboutYs .ysR3 .inner .group .box .msg .ysDesc span {
  color: #fff;
}
.aboutYs .ysR3 .inner .group .box .msg .ysDesc {
  margin-top: 0;
  overflow: hidden;
  line-height: 1.6;
  max-height: 0;
  opacity: 0;
  font-weight: 400;
  transition: max-height .5s var(--ease), opacity .45s var(--ease), margin-top .5s var(--ease);
}
@media screen and (orientation: landscape) {
  .aboutYs .ysR3 .inner .group .box:hover .msg {
    height: 100%;
    border-radius: 0.3rem;
    background: linear-gradient(180deg, rgba(0, 0, 0, .35) 0%, rgba(0, 0, 0, .85) 62%);
  }
  .aboutYs .ysR3 .inner .group .box:hover .msg .ysDesc {
    max-height: 55%;
    opacity: 1;
    margin-top: .3rem;
  }
  .aboutYs .ysR3 .inner .group .box:hover .msg h3,
  .aboutYs .ysR3 .inner .group .box:hover .msg small,
  .aboutYs .ysR3 .inner .group .box:hover .msg .ysDesc,
  .aboutYs .ysR3 .inner .group .box:hover .msg .ysDesc span {
    color: #fff;
  }
}

/* --------------------------------------------------------------------------
   r4 发展历程：滚动驱动的横向时间线
   -------------------------------------------------------------------------- */
.aboutYs .ysR4 {
  background-color: #eff0f4;
  width: 100%;
  z-index: 5;
  position: relative;
}
@media screen and (orientation: landscape) and (min-width: 901px) {
  /* JS 会按里程碑数量写入精确高度，此处兜底保证首屏前布局稳定 */
  .aboutYs .ysR4 { height: 650vh; }
}
.aboutYs .ysR4 > .inner {
  width: 100%;
  height: 100vh;
  overflow: hidden;
  display: grid;
  grid-template-rows: 28% 72%;
  justify-content: start;
  position: sticky;
  left: 0;
  top: 0;
}
.aboutYs .ysR4 .ysR4Til {
  width: 100%;
  box-sizing: border-box;
  /* 与 .maxSize 左缘对齐，但不再用 margin:auto，避免标题被摆到视觉中央 */
  padding: 1.2rem 0 0 9vw;
  margin: 0;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: flex-start;
  text-align: left;
}
.aboutYs .ysR4 .ysR4Til .layer-til {
  display: block;
  margin: 0;
  text-align: left;
}
.aboutYs .ysR4 .ysR4Til .layer-til h2 {
  justify-content: flex-start;
}
.aboutYs .ysR4 .group {
  flex: 1;
  padding-top: .6rem;
  width: 100%;
  padding-left: 17vw;
  position: relative;
}
.aboutYs .ysR4 .group .box {
  display: grid;
  grid-auto-flow: column;
  justify-content: start;
  height: 100%;
  gap: 0 12vw;
  align-items: start;
  position: relative;
  padding-bottom: 10vw;
}
.aboutYs .ysR4 .group .box .part { position: relative; z-index: 6; }
.aboutYs .ysR4 .group .box .part .layer-photo { position: relative; }
.aboutYs .ysR4 .group .box .part .layer-photo .img {
  display: block;
  max-width: 6rem;
  max-height: 36vh;
  border-radius: 4px;
}
.aboutYs .ysR4 .group .box .part .layer-photo:after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 4px;
  background: linear-gradient(180deg, rgba(0, 0, 0, 0) 50%, rgba(0, 0, 0, .7) 100%);
}
.aboutYs .ysR4 .group .box .part .msg {
  top: calc(100% - .5em);
  position: absolute;
  z-index: 10;
  left: 0;
}
.aboutYs .ysR4 .group .box .part .msg h3 {
  line-height: 1;
  margin-bottom: .2rem;
  font-weight: 800;
  letter-spacing: -.02em;
}
.aboutYs .ysR4 .group .box .part .msg p { width: 3.8rem; color: var(--black); line-height: 1.6; }
@media screen and (orientation: landscape) {
  .aboutYs .ysR4 .group .box .part:nth-of-type(2n+1) { align-self: end; }
  .aboutYs .ysR4 .group .box .part:nth-of-type(2n+2) { align-self: start; }
}
@media screen and (orientation: portrait) {
  .aboutYs .ysR4 .group .box .part:nth-of-type(2n+1) { align-self: start; }
  .aboutYs .ysR4 .group .box .part:nth-of-type(2n+2) { align-self: end; }
}
.aboutYs .ysR4 .group .box .lineMask {
  position: absolute;
  z-index: 2;
  width: calc(100% + 150vw);
  height: 100%;
  left: -90vw;
  top: 0;
  /* 写在 CSS 而非 inline，避免 GSAP clearProps 清掉背景导致线条消失 */
  background-image: url(/templates/image/about/line.png);
  background-repeat: repeat-x;
  background-position: center left;
  clip-path: inset(0 82% 0 0);
  will-change: transform, clip-path;
  pointer-events: none;
}

/* --------------------------------------------------------------------------
   r5 展望未来：全屏固定背景 + 逐行显现
   -------------------------------------------------------------------------- */
.aboutYs .ysR5 {
  width: 100%;
  overflow: hidden;
  height: 100vh;
  position: relative;
}
@media screen and (orientation: landscape) {
  .aboutYs .ysR5 { max-height: 56.25vw; }
}
.aboutYs .ysR5 .bg { position: absolute; inset: 0; z-index: 1; pointer-events: none; }
.aboutYs .ysR5 .bg .ysPic {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-repeat: no-repeat;
  background-position: center;
  background-attachment: fixed;
}
.aboutYs .ysR5 .bg:after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 7;
  background: rgba(0, 0, 0, .35);
}
.aboutYs .ysR5 .inner {
  position: relative;
  z-index: 10;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}
.aboutYs .ysR5 .inner h2 { margin-bottom: .6rem; }
.aboutYs .ysR5 .inner p {
  width: 50%;
  text-align: center;
  display: flex;
  flex-direction: column;
  flex-wrap: nowrap;
  gap: .08rem;
  line-height: 1.75 !important;
}
.aboutYs .ysR5 .inner p .letter {
  display: block;
  width: 100%;
  min-width: 0;
  line-height: inherit;
}

/* --------------------------------------------------------------------------
   移动端（竖屏 / ≤900px）
   -------------------------------------------------------------------------- */
@media screen and (orientation: portrait), screen and (max-width: 900px) {
  .aboutYs .f-72 { font-size: 8vw; }

  /* banner */
  .aboutYs .ysBanner .inner { padding-bottom: 2rem; }

  /* r1 */
  .aboutYs .ysR1 { padding: 0; }
  .aboutYs .ysR1 .ysR1Slide { padding: 3.2rem 0 4rem; min-height: auto; }
  .aboutYs .ysR1 .inner { flex-direction: column; }
  .aboutYs .ysR1 .inner .left { margin-bottom: 1rem; width: 100%; }
  .aboutYs .ysR1 .ysSlogan { font-size: 9vw; text-align: center; }
  .aboutYs .ysR1 .inner .msg { width: 100%; text-align: center; }
  .aboutYs .ysR1 .inner .msg h2 { justify-content: center; }
  .aboutYs .ysR1.ysR1Pager .ysR1Nav {
    justify-content: center;
    bottom: .6rem;
  }

  /* r2 */
  .aboutYs .ysR2 { height: auto; max-height: none; }
  .aboutYs .ysR2 .bg { position: relative; height: 100vh; }
  .aboutYs .ysR2 .bg .ysPic { background-attachment: unset; }
  .aboutYs .ysR2 .inner {
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    margin: 0 auto;
    height: 56%;
    padding-top: 3.2rem;
    padding-bottom: 1.2rem;
    grid-template-columns: repeat(2, auto);
    justify-content: space-around;
    gap: .6rem .4rem;
    align-items: center;
  }
  .aboutYs .ysR2 .inner .box {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
  }
  .aboutYs .ysR2 .inner .box > div { text-align: center; font-size: 12vw; letter-spacing: -.05em; }
  .aboutYs .ysR2 .inner .box h3 { margin-top: .15rem; }

  /* r3 */
  .aboutYs .ysR3 { padding: 1.6rem .15rem .15rem; }
  .aboutYs .ysR3 .inner .layer-til { padding-left: 0; width: 100%; text-align: center; margin-bottom: .8rem; }
  .aboutYs .ysR3 .inner .layer-til h2 { justify-content: center; }
  .aboutYs .ysR3 .inner .group { grid-template-columns: 100%; gap: .15rem 0; }
  .aboutYs .ysR3 .inner .group .box { height: 8.4rem; }
  .aboutYs .ysR3 .inner .group .box .msg {
    height: 80%;
    background: linear-gradient(180deg, rgba(0, 0, 0, 0) 10%, rgba(0, 0, 0, .7) 80%);
    padding: .6rem .4rem;
    line-height: 1.3;
  }
  .aboutYs .ysR3 .inner .group .box .msg h3 { font-size: 6vw; }
  /* 移动端无 hover：描述常显 */
  .aboutYs .ysR3 .inner .group .box .msg .ysDesc { max-height: none; opacity: 1; margin-top: .3rem; }

  /* r4 */
  .aboutYs .ysR4 { height: auto !important; overflow: hidden; padding-bottom: 6vw; }
  .aboutYs .ysR4 > .inner { height: auto; display: block; position: relative; }
  .aboutYs .ysR4 .ysR4Til {
    padding: 1.6rem 5vw .8rem;
    width: 100%;
    margin: 0;
    text-align: left;
    align-items: flex-start;
    justify-content: flex-start;
  }
  .aboutYs .ysR4 .ysR4Til .layer-til,
  .aboutYs .ysR4 .ysR4Til .layer-til h2 {
    text-align: left;
    justify-content: flex-start;
  }
  .aboutYs .ysR4 .group {
    padding-left: 5vw;
    width: 100%;
    padding-top: 0;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }
  .aboutYs .ysR4 .group::-webkit-scrollbar { display: none; }
  .aboutYs .ysR4 .group .box {
    display: flex;
    align-items: center;
    height: 125vw;
    padding: 12vw 10vw 25vw 0;
    gap: 0 6vw;
    width: max-content;
  }
  .aboutYs .ysR4 .group .box .part { width: 70vw; flex: 0 0 auto; }
  .aboutYs .ysR4 .group .box .part .layer-photo { width: 100%; }
  .aboutYs .ysR4 .group .box .part .layer-photo .img {
    max-width: 100%;
    max-height: none;
    height: 45vw;
    width: 100%;
    object-fit: cover;
  }
  .aboutYs .ysR4 .group .box .part .msg { position: relative; margin-top: -.4rem; left: auto; top: auto; }
  .aboutYs .ysR4 .group .box .part .msg p { font-size: 14px; width: 100%; }
  .aboutYs .ysR4 .group .box .lineMask {
    clip-path: inset(0 90% 0 0);
    background-size: auto 50%;
    left: -10vw;
  }

  /* r5 */
  .aboutYs .ysR5 { height: auto; max-height: none; }
  .aboutYs .ysR5 .bg { position: absolute; }
  .aboutYs .ysR5 .bg .ysPic { background-attachment: unset; }
  .aboutYs .ysR5 .inner { padding: 1.2rem 0 2.8rem; height: auto; min-height: 100vh; }
  .aboutYs .ysR5 .inner p { width: 92%; margin: 0 auto; }
}