.page-about{
  --about-gutter:20px;
  --about-soft-line:rgba(55,245,196,0.16);
  font-family:var(--font-cn);
  color:var(--paper);
  line-height:1.75;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
.page-about .wrap{
  width:100%;
  max-width:var(--wrap);
  margin:0 auto;
  padding-left:var(--about-gutter);
  padding-right:var(--about-gutter);
}
.page-about .section{
  padding-top:34px;
  padding-bottom:34px;
}
.page-about p{margin:0 0 14px;}
.page-about p:last-child{margin-bottom:0;}
.page-about .about-h2{
  margin:8px 0 0;
  font-size:clamp(25px,6vw,40px);
  font-weight:900;
  line-height:1.16;
  letter-spacing:-0.015em;
  color:var(--paper);
}
.page-about .about-lead{
  margin:14px 0 0;
  max-width:38rem;
  color:var(--muted);
  font-size:15px;
}
.page-about .about-link{
  color:var(--cyan);
  text-decoration:none;
  border-bottom:1px solid rgba(55,245,196,0.45);
  transition:border-color 160ms var(--ease-score),color 160ms var(--ease-score);
}
.page-about .about-link:hover,
.page-about .about-link:focus-visible{
  border-bottom-color:var(--cyan);
  color:var(--white);
}
.page-about .about-link:focus-visible{
  outline:2px solid var(--cyan);
  outline-offset:3px;
}

/* ---------- 开篇 ---------- */
.page-about .about-open{
  position:relative;
  padding-top:22px;
  padding-bottom:44px;
  overflow:hidden;
}
.page-about .about-open::before{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  background:
    linear-gradient(118deg,rgba(55,245,196,0.10) 0%,rgba(55,245,196,0) 46%,rgba(255,122,47,0.07) 100%);
  clip-path:polygon(0 0,100% 0,100% 62%,0 100%);
}
.page-about .about-open__grid{
  position:relative;
  display:grid;
  gap:30px;
}
.page-about .about-open__title{
  margin:14px 0 0;
  font-size:clamp(32px,8.4vw,66px);
  font-weight:900;
  line-height:1.06;
  letter-spacing:-0.025em;
  color:var(--white);
}
.page-about .about-open__lede{
  margin:18px 0 0;
  max-width:34rem;
  font-size:16px;
  color:var(--muted);
}
.page-about .about-open__facts{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:1px;
  margin:28px 0 0;
  background:var(--line);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.page-about .about-open__fact{
  background:var(--ink);
  padding:14px 12px 16px;
}
.page-about .about-open__fact dt{
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:0.16em;
  color:var(--muted);
  text-transform:uppercase;
}
.page-about .about-open__fact dd{
  margin:6px 0 0;
  display:flex;
  align-items:baseline;
  gap:0.35em;
}
.page-about .about-open__num{
  font-family:var(--font-mono);
  font-size:26px;
  line-height:1;
  color:var(--cyan);
  letter-spacing:-0.02em;
}
.page-about .about-open__unit{
  font-size:12px;
  color:var(--muted);
}
.page-about .about-open__figure{
  margin:0;
  border-left:2px solid var(--cyan);
}
.page-about .about-open__figure .figure__caption{
  padding-top:10px;
  font-size:12px;
  color:var(--muted);
  line-height:1.6;
}

/* ---------- 起点 ---------- */
.page-about .about-split{
  display:grid;
  gap:18px;
}
.page-about .about-split__head{
  border-left:3px solid var(--orange);
  padding-left:14px;
}
.page-about .about-split__body{
  font-size:16px;
  color:var(--paper);
}
.page-about .about-split__body p{
  max-width:38rem;
}
.page-about .about-quote{
  margin:30px 0 0;
  padding:24px 20px;
  background:var(--cream);
  color:#111C17;
  border-left:6px solid var(--orange);
}
.page-about .about-quote p{
  margin:0;
  font-size:clamp(17px,3.4vw,21px);
  font-weight:700;
  line-height:1.65;
  letter-spacing:0.005em;
}

/* ---------- 三栏目 ---------- */
.page-about .about-head{
  border-bottom:1px solid var(--line);
  padding-bottom:18px;
}
.page-about .about-lines{
  list-style:none;
  margin:6px 0 0;
  padding:0;
  counter-reset:none;
}
.page-about .about-lines__item{
  display:grid;
  grid-template-columns:38px minmax(0,1fr);
  gap:14px;
  padding:22px 0;
  border-bottom:1px solid var(--line);
}
.page-about .about-lines__idx{
  margin:2px 0 0;
  font-family:var(--font-mono);
  font-size:13px;
  letter-spacing:0.12em;
  color:var(--cyan);
}
.page-about .about-lines__title{
  margin:0 0 8px;
  font-size:19px;
  font-weight:800;
  letter-spacing:-0.01em;
  color:var(--white);
  line-height:1.4;
}
.page-about .about-lines__item p{
  font-size:15px;
  color:var(--muted);
  max-width:36rem;
}
.page-about .about-lines__foot{
  margin:22px 0 0;
  padding:16px 18px;
  background:var(--panel-1);
  border-left:2px solid var(--cyan);
  font-size:14px;
  color:var(--muted);
}

/* ---------- 团队 ---------- */
.page-about .about-team__grid{
  display:grid;
  gap:28px;
}
.page-about .about-team__text p{
  max-width:36rem;
  font-size:16px;
}
.page-about .about-roles{
  position:relative;
  margin:26px 0 0;
  padding-left:22px;
  border-left:1px solid var(--line);
  display:grid;
  gap:20px;
}
.page-about .about-roles__row{
  position:relative;
}
.page-about .about-roles__row::before{
  content:"";
  position:absolute;
  left:-27px;
  top:9px;
  width:9px;
  height:9px;
  border-radius:50%;
  background:var(--panel-2);
  border:1px solid var(--line);
  transition:background 180ms var(--ease-score),border-color 180ms var(--ease-score);
}
.page-about .about-roles__row:hover::before,
.page-about .about-roles__row:focus-within::before{
  background:var(--cyan);
  border-color:var(--cyan);
}
.page-about .about-roles__role{
  margin:0 0 4px;
  font-size:14px;
  font-weight:800;
  letter-spacing:0.03em;
  color:var(--paper);
}
.page-about .about-roles__duty{
  margin:0;
  font-size:14px;
  color:var(--muted);
  line-height:1.7;
}
.page-about .about-team__figure{
  margin:0;
}
.page-about .about-team__figure .figure__caption{
  padding-top:10px;
  font-size:12px;
  color:var(--muted);
  line-height:1.6;
}

/* ---------- 版本 ---------- */
.page-about .about-version__grid{
  display:grid;
  gap:26px;
}
.page-about .about-version__figure{
  margin:0;
  max-width:320px;
}
.page-about .about-version__figure .figure__caption{
  padding-top:10px;
  font-size:12px;
  color:var(--muted);
  line-height:1.6;
}
.page-about .about-version__body p{
  max-width:38rem;
  font-size:16px;
}
.page-about .about-version__list{
  list-style:none;
  margin:20px 0 22px;
  padding:0;
  display:grid;
  gap:14px;
}
.page-about .about-version__list li{
  position:relative;
  padding-left:18px;
  font-size:15px;
  color:var(--muted);
  line-height:1.72;
}
.page-about .about-version__list li::before{
  content:"";
  position:absolute;
  left:0;
  top:11px;
  width:9px;
  height:2px;
  background:var(--orange);
}
.page-about .about-version__list strong{
  color:var(--paper);
  font-weight:800;
}

/* ---------- 年表 ---------- */
.page-about .about-timeline{
  list-style:none;
  margin:26px 0 0;
  padding:0;
}
.page-about .about-timeline__item{
  position:relative;
  padding:0 0 26px 24px;
  border-left:1px solid var(--line);
}
.page-about .about-timeline__item:last-child{
  padding-bottom:0;
  border-left-color:transparent;
}
.page-about .about-timeline__dot{
  position:absolute;
  left:-5px;
  top:20px;
  width:9px;
  height:9px;
  border-radius:50%;
  background:var(--cyan);
  box-shadow:0 0 0 3px var(--ink);
}
.page-about .about-timeline__panel{
  position:relative;
  overflow:hidden;
  padding:20px 18px 18px;
}
.page-about .about-timeline__index{
  position:absolute;
  top:-16px;
  right:8px;
  font-family:var(--font-mono);
  font-size:88px;
  font-weight:200;
  line-height:1;
  letter-spacing:-0.05em;
  color:rgba(55,245,196,0.10);
  pointer-events:none;
  user-select:none;
}
.page-about .about-timeline__season{
  margin:12px 0 0;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:0.18em;
  text-transform:uppercase;
  color:var(--cyan);
}
.page-about .about-timeline__title{
  margin:10px 0 10px;
  font-size:20px;
  font-weight:900;
  line-height:1.35;
  letter-spacing:-0.01em;
  color:var(--white);
}
.page-about .about-timeline__panel p{
  position:relative;
  max-width:36rem;
  font-size:15px;
  color:var(--muted);
}
.page-about .about-timeline__panel .disclosure{
  position:relative;
  margin-top:14px;
}
.page-about .about-timeline__panel .disclosure__body p{
  margin:0;
  font-size:14px;
  line-height:1.75;
}

/* ---------- 接下来 ---------- */
.page-about .about-next__grid{
  display:grid;
  gap:28px;
}
.page-about .about-next__list{
  list-style:none;
  margin:22px 0 0;
  padding:0;
  display:grid;
  gap:18px;
}
.page-about .about-next__list li{
  padding-top:16px;
  border-top:1px solid var(--line);
}
.page-about .about-next__list h3{
  margin:0 0 6px;
  font-size:16px;
  font-weight:800;
  color:var(--paper);
  letter-spacing:0.01em;
}
.page-about .about-next__list p{
  font-size:15px;
  color:var(--muted);
  max-width:34rem;
}
.page-about .about-next__contact{
  padding:22px 18px;
  background:var(--panel-1);
  border:1px solid var(--line);
  border-top:3px solid var(--orange);
}
.page-about .about-next__note{
  font-size:14px;
  color:var(--muted);
  margin:12px 0 0;
}
.page-about .about-next__channels{
  list-style:none;
  margin:18px 0 0;
  padding:0;
  display:grid;
  gap:10px;
}
.page-about .about-next__channels li{
  display:grid;
  grid-template-columns:52px minmax(0,1fr);
  gap:10px;
  align-items:baseline;
  padding-bottom:10px;
  border-bottom:1px solid var(--line);
}
.page-about .about-next__channels li:last-child{
  border-bottom:0;
  padding-bottom:0;
}
.page-about .about-next__channels span{
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:0.16em;
  color:var(--muted);
}
.page-about .about-next__channels strong{
  font-family:var(--font-mono);
  font-size:14px;
  font-weight:500;
  color:var(--paper);
  word-break:break-word;
}

/* ---------- 桌面 ---------- */
@media (min-width:760px){
  .page-about{
    --about-gutter:40px;
  }
  .page-about .section{
    padding-top:52px;
    padding-bottom:52px;
  }
  .page-about .about-open{
    padding-bottom:64px;
  }
  .page-about .about-open__grid{
    grid-template-columns:minmax(0,1.08fr) minmax(0,0.92fr);
    align-items:end;
    gap:44px;
  }
  .page-about .about-open__facts{
    grid-template-columns:repeat(4,minmax(0,1fr));
    margin-top:34px;
  }
  .page-about .about-open__num{
    font-size:30px;
  }
  .page-about .about-split{
    grid-template-columns:minmax(0,4fr) minmax(0,8fr);
    gap:36px;
    align-items:start;
  }
  .page-about .about-quote{
    max-width:760px;
    padding:30px 32px;
  }
  .page-about .about-lines__item{
    grid-template-columns:78px minmax(0,1fr);
    gap:26px;
    padding:26px 0;
  }
  .page-about .about-lines__title{
    font-size:22px;
  }
  .page-about .about-team__grid{
    grid-template-columns:minmax(0,7fr) minmax(0,5fr);
    gap:44px;
    align-items:start;
  }
  .page-about .about-team__figure{
    position:sticky;
    top:32px;
  }
  .page-about .about-version__grid{
    grid-template-columns:minmax(0,4fr) minmax(0,8fr);
    gap:44px;
    align-items:start;
  }
  .page-about .about-version__figure{
    max-width:none;
  }
  .page-about .about-timeline__item{
    padding-left:34px;
  }
  .page-about .about-timeline__panel{
    padding:26px 26px 24px;
  }
  .page-about .about-timeline__index{
    font-size:120px;
    top:-22px;
    right:16px;
  }
  .page-about .about-timeline__title{
    font-size:24px;
  }
  .page-about .about-next__grid{
    grid-template-columns:minmax(0,7fr) minmax(0,4fr);
    gap:44px;
    align-items:start;
  }
  .page-about .about-next__contact{
    position:sticky;
    top:32px;
  }
}

@media (min-width:1080px){
  .page-about .about-open__title{
    font-size:66px;
  }
  .page-about .about-timeline__panel{
    padding:30px 32px 26px;
  }
  .page-about .about-roles{
    grid-template-columns:repeat(2,minmax(0,1fr));
    gap:24px 30px;
  }
}
<<<END>>>