.page-about {
  --about-card: #fffdf7;
  --about-txt: #403a33;
  --about-line: rgba(217, 162, 39, 0.5);
}

.page-about .about-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(18px, 3vw, 30px) 0 clamp(38px, 6vw, 76px);
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: min(64%, 440px);
  background: linear-gradient(105deg, var(--paper-2) 0%, rgba(243, 223, 172, 0.55) 54%, rgba(251, 244, 231, 0) 100%);
  clip-path: polygon(0 0, 100% 0, 100% 78%, 0 100%);
  pointer-events: none;
}

.page-about .about-hero__inner {
  position: relative;
  display: grid;
  gap: clamp(22px, 4vw, 46px);
}

.page-about .about-hero__figure {
  margin: 0;
  border-radius: var(--r-lg);
  overflow: hidden;
  border: 1px solid var(--hair-strong);
  box-shadow: var(--shadow-card);
  background: var(--paper-2);
  transform: rotate(-1.2deg);
}

.page-about .about-hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-about .about-hero__cap {
  padding: 10px 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.6;
  letter-spacing: 0.04em;
  color: var(--muted);
  background: rgba(251, 244, 231, 0.92);
  border-top: 1px dashed var(--hair);
}

.page-about h1 {
  margin: 0.28em 0 0.52em;
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: clamp(28px, 5.4vw, 50px);
  line-height: 1.16;
  letter-spacing: -0.02em;
  color: var(--ink);
}

.page-about .lede {
  max-width: 56ch;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.85;
  color: var(--about-txt);
}

.page-about .about-hero__stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: clamp(18px, 3vw, 30px);
}

.page-about .about-hero__stat {
  padding-top: 8px;
  border-top: 2px solid var(--gold);
}

.page-about .about-hero__k {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--muted);
}

.page-about .about-hero__v {
  display: block;
  margin-top: 4px;
  font-family: var(--font-mono);
  font-size: clamp(16px, 2.2vw, 20px);
  font-weight: 600;
  color: var(--red-deep);
}

.page-about .about-sec {
  position: relative;
  padding: clamp(32px, 5.5vw, 68px) 0;
}

.page-about .about-sec--tl {
  background: linear-gradient(180deg, rgba(243, 223, 172, 0.16), rgba(251, 244, 231, 0));
}

.page-about .sec-head {
  display: flex;
  align-items: flex-start;
  gap: clamp(10px, 2.2vw, 20px);
  margin-bottom: clamp(16px, 2.6vw, 30px);
}

.page-about .sec-num {
  flex: none;
  font-family: var(--font-mono);
  font-size: clamp(42px, 8vw, 80px);
  line-height: 0.78;
  letter-spacing: -0.04em;
  color: var(--paper-2);
  -webkit-text-stroke: 1.5px var(--gold);
}

.page-about .sec-title {
  margin: 6px 0 0;
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: clamp(21px, 3.2vw, 31px);
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-about .about-lede {
  max-width: 64ch;
  margin: 0 0 clamp(16px, 2.6vw, 26px);
  font-size: 15px;
  line-height: 1.85;
  color: var(--about-txt);
}

.page-about .about-prose {
  max-width: 64ch;
  font-size: 16px;
  line-height: 1.85;
  color: var(--about-txt);
}

.page-about .about-prose p {
  margin: 0 0 1.1em;
}

.page-about .about-prose p:last-child {
  margin-bottom: 0;
}

.page-about .about-prose a,
.page-about .about-lede a,
.page-about .role__text a,
.page-about .flow a,
.page-about .award__text a {
  color: var(--red-deep);
  text-decoration: none;
  border-bottom: 1px solid var(--about-line);
}

.page-about .about-prose a:hover,
.page-about .about-lede a:hover,
.page-about .role__text a:hover,
.page-about .flow a:hover,
.page-about .award__text a:hover {
  border-bottom-color: var(--red);
}

.page-about .pull {
  margin: clamp(20px, 3vw, 34px) 0 0;
  padding: 4px 0 4px clamp(14px, 2.4vw, 22px);
  border-left: 4px solid var(--red);
}

.page-about .pull p {
  margin: 0;
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: clamp(19px, 2.6vw, 26px);
  line-height: 1.5;
  letter-spacing: -0.01em;
  color: var(--red-deep);
}

.page-about .about-tl-figure {
  max-width: 700px;
  margin: 0 auto clamp(26px, 4vw, 46px);
}

.page-about .tl {
  position: relative;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .tl::before {
  content: "";
  position: absolute;
  left: 9px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  border-radius: 2px;
  background: linear-gradient(180deg, var(--gold) 0%, rgba(217, 162, 39, 0.34) 62%, rgba(217, 162, 39, 0.08) 100%);
}

.page-about .tl__item {
  position: relative;
  padding-left: 40px;
  margin-bottom: clamp(16px, 2.6vw, 26px);
}

.page-about .tl__item:last-child {
  margin-bottom: 0;
}

.page-about .tl__dot {
  position: absolute;
  left: 3px;
  top: 24px;
  width: 14px;
  height: 14px;
  background: var(--paper);
  border: 2px solid var(--gold);
  border-radius: 2px;
  transform: rotate(45deg);
}

.page-about .tl__body {
  position: relative;
  overflow: hidden;
  padding: clamp(14px, 2.2vw, 22px) clamp(16px, 2.4vw, 26px);
  background: var(--about-card);
  border: 1px solid var(--hair);
  border-radius: var(--r-md);
  box-shadow: var(--shadow-card);
}

.page-about .tl__body::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 26px;
  height: 26px;
  background: var(--gold-pale);
  clip-path: polygon(100% 0, 0 0, 100% 100%);
  border-bottom-left-radius: 8px;
}

.page-about .tl__year {
  margin: 0 0 4px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.12em;
  color: var(--red);
}

.page-about .tl__title {
  margin: 0 0 6px;
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: clamp(16px, 2.1vw, 19px);
  line-height: 1.45;
  color: var(--ink);
}

.page-about .tl__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--about-txt);
}

.page-about .team {
  display: grid;
  gap: clamp(20px, 3.4vw, 40px);
}

.page-about .team__figure {
  margin: 0;
  padding: clamp(14px, 2vw, 22px);
  background: var(--paper-2);
  border: 1px solid var(--hair);
  border-radius: var(--r-lg);
}

.page-about .team__figure img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--r-md);
}

.page-about .team__figure figcaption {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.7;
  color: var(--muted);
}

.page-about .roles {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .role {
  padding: 14px 16px;
  background: var(--about-card);
  border: 1px solid var(--hair);
  border-radius: var(--r-md);
  transition: transform 0.22s var(--ease), box-shadow 0.22s var(--ease), border-color 0.22s var(--ease);
}

.page-about .role:hover,
.page-about .role:focus-within {
  transform: translateY(-4px);
  border-color: var(--gold);
  box-shadow: var(--shadow-lift);
}

.page-about .role__top {
  display: flex;
  align-items: baseline;
  gap: 8px;
  margin-bottom: 6px;
}

.page-about .role__num {
  font-family: var(--font-mono);
  font-size: 22px;
  font-weight: 600;
  line-height: 1;
  color: var(--red);
}

.page-about .role__name {
  margin: 0;
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: 16px;
  color: var(--ink);
}

.page-about .role__unit {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--muted);
}

.page-about .role__text {
  margin: 0 0 8px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--about-txt);
}

.page-about .role__out {
  margin: 0;
  padding-top: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.65;
  color: var(--green);
  border-top: 1px dashed var(--hair);
}

.page-about .gates {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .gate {
  position: relative;
}

.page-about .gate__sum {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  cursor: pointer;
  list-style: none;
  border: 1px solid var(--hair-strong);
  border-radius: var(--r-pill);
  background: linear-gradient(180deg, var(--about-card), var(--paper-2));
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: 15px;
  color: var(--ink);
  transition: border-color 0.2s var(--ease), background 0.2s var(--ease);
}

.page-about .gate__sum::-webkit-details-marker {
  display: none;
}

.page-about .gate__sum::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 16px;
  line-height: 1;
  color: var(--muted);
}

.page-about .gate__sum:hover {
  border-color: var(--gold);
}

.page-about .gate[open] .gate__sum {
  border-color: var(--red);
  background: var(--paper-2);
}

.page-about .gate[open] .gate__sum::after {
  content: "\2212";
  color: var(--red);
}

.page-about .gate__idx {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--red);
}

.page-about .gate__name {
  letter-spacing: -0.01em;
}

.page-about .gate__body {
  padding: 12px 6px 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--about-txt);
}

.page-about .gate__body p {
  margin: 0 0 0.8em;
}

.page-about .gate__body p:last-child {
  margin-bottom: 0;
}

.page-about .note {
  margin-top: clamp(16px, 2.4vw, 24px);
  padding: 12px 16px;
  border-left: 3px solid var(--celadon);
  background: rgba(44, 122, 140, 0.07);
  border-radius: 0 var(--r-md) var(--r-md) 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--about-txt);
}

.page-about .cats {
  display: grid;
  gap: 12px;
}

.page-about .cat {
  padding: 14px 16px;
  background: var(--about-card);
  border: 1px solid var(--hair);
  border-left: 4px solid var(--gold);
  border-radius: var(--r-md);
  transition: transform 0.22s var(--ease), box-shadow 0.22s var(--ease);
}

.page-about .cat:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lift);
}

.page-about .cat:nth-child(1) { border-left-color: var(--red); }
.page-about .cat:nth-child(2) { border-left-color: var(--green); }
.page-about .cat:nth-child(3) { border-left-color: var(--celadon); }
.page-about .cat:nth-child(4) { border-left-color: var(--gold); }
.page-about .cat:nth-child(5) { border-left-color: var(--coral); }
.page-about .cat:nth-child(6) { border-left-color: var(--red-deep); }

.page-about .cat h3 {
  margin: 0 0 6px;
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: 16px;
  color: var(--ink);
}

.page-about .cat p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--about-txt);
}

.page-about .contrib {
  display: grid;
  gap: clamp(18px, 3vw, 32px);
}

.page-about .flow {
  display: grid;
  gap: 10px;
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
}

.page-about .flow li {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  font-size: 14px;
  line-height: 1.75;
  color: var(--about-txt);
}

.page-about .flow__n {
  flex: none;
  padding: 1px 7px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--red);
  border: 1px solid var(--gold);
  border-radius: var(--r-pill);
}

.page-about .contrib__side {
  padding: 18px 20px;
  border-left: 4px solid var(--green);
}

.page-about .contrib__k {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--muted);
}

.page-about .contrib__v {
  margin: 6px 0 10px;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: clamp(38px, 6vw, 54px);
  line-height: 1;
  color: var(--green);
}

.page-about .contrib__side p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--about-txt);
}

.page-about .about-sec--award {
  background: linear-gradient(180deg, rgba(194, 53, 42, 0.05), rgba(251, 244, 231, 0));
}

.page-about .award {
  display: grid;
  gap: 16px;
  align-items: center;
  padding: clamp(18px, 3vw, 30px);
  border: 1px solid var(--hair);
  border-radius: var(--r-lg);
  background: linear-gradient(100deg, rgba(243, 223, 172, 0.4), rgba(251, 244, 231, 0));
}

.page-about .award__num {
  margin: 0;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: clamp(52px, 10vw, 86px);
  line-height: 0.9;
  letter-spacing: -0.03em;
  color: var(--red);
}

.page-about .award__num span {
  font-size: 0.4em;
  color: var(--gold);
}

.page-about .award__text p {
  margin: 0 0 0.8em;
  font-size: 15px;
  line-height: 1.85;
  color: var(--about-txt);
}

.page-about .award__text p:last-child {
  margin-bottom: 0;
}

.page-about .about-cta {
  padding: clamp(28px, 5vw, 56px) 0 clamp(36px, 6vw, 64px);
  border-top: 1px solid var(--hair);
}

.page-about .about-cta h2 {
  margin: 0 0 14px;
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: clamp(20px, 3vw, 28px);
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-about .about-cta__links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

@media (min-width: 620px) {
  .page-about .about-hero__stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-about .cats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 700px) {
  .page-about .roles {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 760px) {
  .page-about .award {
    grid-template-columns: auto minmax(0, 1fr);
    gap: clamp(20px, 4vw, 44px);
  }
}

@media (min-width: 860px) {
  .page-about .gates {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 14px;
    align-items: start;
  }

  .page-about .gate:not(:last-child)::after {
    content: "";
    position: absolute;
    top: 22px;
    right: -9px;
    width: 14px;
    height: 1px;
    background: var(--hair-strong);
  }
}

@media (min-width: 900px) {
  .page-about .about-hero__inner {
    grid-template-columns: minmax(0, 0.88fr) minmax(0, 1fr);
    align-items: center;
  }

  .page-about .team {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    align-items: start;
  }

  .page-about .contrib {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    align-items: start;
  }

  .page-about .tl__item {
    padding-left: 52px;
  }

  .page-about .tl::before {
    left: 11px;
  }

  .page-about .tl__dot {
    left: 5px;
  }
}

@media (min-width: 940px) {
  .page-about .cats {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .role,
  .page-about .cat,
  .page-about .gate__sum {
    transition: none;
  }

  .page-about .role:hover,
  .page-about .cat:hover {
    transform: none;
  }
}
<<<END>>>