@import url("https://fonts.googleapis.com/css?family=Barlow:400,500,700");

@font-face {
  font-family: "Wildflower";
  src: url("./fonts/Wildflower-Regular.woff2") format("woff2");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "CN12";
  src: url("./fonts/youyouyisong4.woff") format("woff");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

@media (min-width: 901px){
  #header,
  #menu{
    display: none !important;
    position: absolute !important;
    width: 0 !important;
    height: 0 !important;
    min-width: 0 !important;
    min-height: 0 !important;
    padding: 0 !important;
    margin: 0 !important;
    border: 0 !important;
    overflow: hidden !important;
    opacity: 0 !important;
    visibility: hidden !important;
    pointer-events: none !important;
  }
}

@media (max-width: 900px){
  .site-header,
  .mobile-nav{
    display: none !important;
  }

  :root{
    --about-mobile-shell-bg: #f5f2eb;
    --about-mobile-shell-panel: rgba(229,223,212,.94);
    --about-mobile-shell-text: #141414;
    --about-mobile-shell-line: rgba(20,20,20,.14);
  }

  #header{
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 84px;
    padding: 0 18px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: linear-gradient(to bottom, rgba(245,242,235,.92), rgba(245,242,235,.72));
    backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--about-mobile-shell-line);
    z-index: 1200;
  }

  #header h1{
    margin: 0;
    color: var(--about-mobile-shell-text);
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: .18em;
    line-height: 1;
    text-transform: uppercase;
  }

  #header .nav{
    margin-left: auto;
  }

  #header .toggle-menu{
    position: fixed;
    top: max(18px, calc(env(safe-area-inset-top) + 8px));
    right: 18px;
    width: 48px;
    height: 48px;
    padding: 0;
    border: 1px solid rgba(255,255,255,.22);
    border-radius: 999px;
    background:
      linear-gradient(180deg, rgba(255,255,255,.28), rgba(255,255,255,.08)),
      rgba(236,231,221,.56);
    backdrop-filter: blur(20px) saturate(140%);
    box-shadow:
      0 18px 36px rgba(20,20,20,.10),
      inset 0 1px 0 rgba(255,255,255,.32);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    z-index: 1600;
  }

  .toggle-menu.toggle-menu--floating{
    position: fixed;
    top: max(18px, calc(env(safe-area-inset-top) + 8px));
    right: 18px;
    width: 48px;
    height: 48px;
    padding: 0;
    border: 1px solid rgba(255,255,255,.22);
    border-radius: 999px;
    background:
      linear-gradient(180deg, rgba(255,255,255,.28), rgba(255,255,255,.08)),
      rgba(236,231,221,.56);
    backdrop-filter: blur(20px) saturate(140%);
    box-shadow:
      0 18px 36px rgba(20,20,20,.10),
      inset 0 1px 0 rgba(255,255,255,.32);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    z-index: 1600;
  }

  #header .toggle-menu span{
    position: absolute;
    left: 50%;
    top: 50%;
    width: 16px;
    height: 1.5px;
    background: rgba(20,20,20,.82);
    border-radius: 999px;
    transform-origin: center;
    transition: transform .24s ease, opacity .24s ease, background-color .24s ease;
  }

  .toggle-menu.toggle-menu--floating span{
    position: absolute;
    left: 50%;
    top: 50%;
    width: 16px;
    height: 1.5px;
    background: rgba(20,20,20,.82);
    border-radius: 999px;
    transform-origin: center;
    transition: transform .24s ease, opacity .24s ease, background-color .24s ease;
  }

  #header .toggle-menu span:nth-child(1){
    transform: translate(-50%, -5px);
  }

  .toggle-menu.toggle-menu--floating span:nth-child(1){
    transform: translate(-50%, -5px);
  }

  #header .toggle-menu span:nth-child(2){
    transform: translate(-50%, 5px);
  }

  .toggle-menu.toggle-menu--floating span:nth-child(2){
    transform: translate(-50%, 5px);
  }

  #header .toggle-menu.active span:nth-child(1){
    transform: translate(-50%, -50%) rotate(45deg);
  }

  .toggle-menu.toggle-menu--floating.active span:nth-child(1){
    transform: translate(-50%, -50%) rotate(45deg);
  }

  #header .toggle-menu.active span:nth-child(2){
    transform: translate(-50%, -50%) rotate(-45deg);
  }

  .toggle-menu.toggle-menu--floating.active span:nth-child(2){
    transform: translate(-50%, -50%) rotate(-45deg);
  }

  #menu{
    position: fixed;
    inset: 0;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity .32s ease, visibility .32s ease;
    z-index: 1500;
    text-align: left;
  }

  #menu.open{
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
  }

  #menu.open ~ .toggle-menu.toggle-menu--floating,
  #menu.open + .toggle-menu.toggle-menu--floating,
  .toggle-menu.toggle-menu--floating.active{
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
  }


  #menu .menu-backdrop{
    position: absolute;
    inset: 0;
    background: rgba(245,242,235,.34);
    backdrop-filter: blur(18px) saturate(135%);
  }

  #menu .main-nav{
    position: absolute;
    top: max(10px, calc(env(safe-area-inset-top) + 10px));
    right: 10px;
    bottom: max(10px, calc(env(safe-area-inset-bottom) + 10px));
    width: min(360px, calc(100vw - 20px));
    max-height: none;
    padding: 18px;
    overflow: auto;
    border-radius: 30px;
    border: 1px solid rgba(255,255,255,.42);
    background:
      linear-gradient(180deg, rgba(255,255,255,.7), rgba(255,255,255,.42)),
      var(--about-mobile-shell-panel);
    backdrop-filter: blur(26px) saturate(150%);
    box-shadow:
      0 28px 80px rgba(20,20,20,.14),
      inset 0 1px 0 rgba(255,255,255,.36);
    transform: translateY(-10px) scale(.98);
    transform-origin: top right;
    transition: transform .45s cubic-bezier(.19, 1, .22, 1);
  }

  #menu.open .main-nav{
    transform: translateY(0) scale(1);
  }

  #menu .menu-topbar{
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 14px;
  }

  #menu .menu-eyebrow{
    margin: 0;
    color: rgba(20,20,20,.56);
    font-family: "Barlow", sans-serif;
    font-size: 11px;
    font-weight: 400;
    letter-spacing: .18em;
    text-transform: uppercase;
  }

  #menu .menu-back{
    position: relative;
    appearance: none;
    width: 48px;
    height: 48px;
    padding: 0;
    border: 1px solid rgba(255,255,255,.22);
    border-radius: 999px;
    background:
      linear-gradient(180deg, rgba(255,255,255,.28), rgba(255,255,255,.08)),
      rgba(236,231,221,.56);
    backdrop-filter: blur(20px) saturate(140%);
    box-shadow:
      0 18px 36px rgba(20,20,20,.10),
      inset 0 1px 0 rgba(255,255,255,.32);
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  #menu .menu-back span{
    position: absolute;
    left: 50%;
    top: 50%;
    width: 16px;
    height: 1.5px;
    background: rgba(20,20,20,.82);
    border-radius: 999px;
  }

  #menu .menu-back span:nth-child(1){
    transform: translate(-50%, -50%) rotate(45deg);
  }

  #menu .menu-back span:nth-child(2){
    transform: translate(-50%, -50%) rotate(-45deg);
  }

  #menu .menu-links{
    display: grid;
    gap: 10px;
  }

  #menu .menu-links > a,
  #menu .menu-projectToggle{
    width: 100%;
    min-height: 54px;
    padding: 0 18px;
    display: inline-flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    border-radius: 20px;
    border: 1px solid rgba(255,255,255,.36);
    background: rgba(255,255,255,.54);
    color: rgba(20,20,20,.86);
    font-family: "Barlow", sans-serif;
    font-size: 12px;
    font-weight: 400;
    letter-spacing: .14em;
    text-transform: uppercase;
    text-decoration: none;
    transition:
      transform .42s cubic-bezier(.19, 1, .22, 1),
      background-color .28s ease,
      border-color .28s ease,
      color .28s ease;
  }

  #menu .menu-projectToggle{
    appearance: none;
    cursor: pointer;
  }

  #menu .menu-projectToggle span:first-child{
    pointer-events: none;
  }

  #menu .menu-links > a:hover,
  #menu .menu-links > a:focus-visible,
  #menu .menu-projectToggle:hover,
  #menu .menu-projectToggle:focus-visible,
  #menu .menu-links > a[aria-current="page"]{
    background: rgba(255,255,255,.72);
    border-color: rgba(20,20,20,.10);
    color: var(--about-mobile-shell-text);
    outline: none;
  }

  #menu .menu-projectCaret{
    width: 8px;
    height: 8px;
    border-right: 1.5px solid currentColor;
    border-bottom: 1.5px solid currentColor;
    transform: rotate(45deg) translateY(-1px);
    transition: transform .45s cubic-bezier(.19, 1, .22, 1);
  }

  #menu .menu-projectMenu.is-open .menu-projectCaret{
    transform: rotate(225deg) translateY(-1px);
  }

  #menu .menu-projectPanel{
    max-height: 0;
    overflow: hidden;
    display: grid;
    gap: 8px;
    padding: 0 6px;
    opacity: 0;
    transition:
      max-height .45s cubic-bezier(.19, 1, .22, 1),
      opacity .28s ease,
      padding-top .28s ease;
  }

  #menu .menu-projectMenu.is-open .menu-projectPanel{
    max-height: 420px;
    opacity: 1;
    padding-top: 10px;
  }

  #menu .menu-projectPanel a{
    min-height: 46px;
    padding: 12px 14px;
    display: flex;
    align-items: center;
    border-radius: 16px;
    border: 1px solid rgba(255,255,255,.16);
    background: rgba(255,255,255,.10);
    color: rgba(20,20,20,.78);
    font-family: "Barlow", sans-serif;
    font-size: 11px;
    font-weight: 400;
    letter-spacing: .14em;
    line-height: 1.45;
    text-transform: uppercase;
    text-decoration: none;
    white-space: normal;
    overflow-wrap: anywhere;
  }

  #menu .menu-projectPanel a:hover,
  #menu .menu-projectPanel a:focus-visible,
  #menu .menu-projectPanel a[aria-current="page"]{
    background: rgba(20,20,20,.08);
    border-color: rgba(20,20,20,.10);
    color: var(--about-mobile-shell-text);
    outline: none;
  }
}

html[lang="en"] #header h1,
html[lang="en"] #menu .menu-eyebrow,
html[lang="en"] #menu .menu-links > a,
html[lang="en"] #menu .menu-projectToggle,
html[lang="en"] #menu .menu-projectPanel a {
  font-family: "Wildflower", Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

html[lang="en"] #header h1{
  font-family: "Wildflower", Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif !important;
}

html[lang="en"] #menu .menu-eyebrow,
html[lang="en"] #menu .menu-links > a,
html[lang="en"] #menu .menu-projectToggle,
html[lang="en"] #menu .menu-projectPanel a{
  font-family: "Wildflower", Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif !important;
}

html[lang="zh-CN"] #header h1,
html[lang="zh-CN"] #menu .menu-eyebrow,
html[lang="zh-CN"] #menu .menu-links > a,
html[lang="zh-CN"] #menu .menu-projectToggle,
html[lang="zh-CN"] #menu .menu-projectPanel a{
  font-family: "CN12", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif !important;
}