.page-about {
  --ab-pad: clamp(18px, 3.2vw, 32px);
  --ab-gap: clamp(16px, 2.4vw, 28px);
  background: var(--ink);
  color: var(--text);
  font-family: var(--font-sans);
  overflow-x: clip;
}

.page-about .about-sec-head {
  max-width: 720px;
  margin-bottom: clamp(24px, 3.4vw, 40px);
}

.page-about .about-sec-title {
  font-size: clamp(25px, 3.6vw, 38px);
  line-height: 1.24;
  letter-spacing: -0.02em;
  font-weight: 900;
  margin: 10px 0 12px;
}

.page-about .about-sec-lede {
  color: var(--muted);
  font-size: 16px;
  line-height: 1.75;
  max-width: 36em;
  margin: 0;
}

.page-about .eyebrow {
  margin: 0;
}

/* ---------- HERO ---------- */

.page-about .about-hero {
  position: relative;
  padding: clamp(24px, 4vw, 44px) 0 clamp(44px, 7vw, 88px);
  background:
    radial-gradient(900px 420px at 82% 8%, rgba(255, 159, 28, 0.16), transparent 62%),
    radial-gradient(760px 420px at 8% 92%, rgba(47, 211, 224, 0.13), transparent 62%),
    linear-gradient(158deg, #241a4a 0%, #171030 52%, var(--ink) 100%);
  border-bottom: 1px solid var(--line);
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  inset: clamp(12px, 2vw, 22px);
  border: 1px solid rgba(37, 48, 59, 0.9);
  border-radius: var(--radius);
  pointer-events: none;
  background-image:
    repeating-linear-gradient(90deg, rgba(155, 166, 180, 0.28) 0 1px, transparent 1px 42px);
  background-size: 100% 9px;
  background-repeat: repeat-x;
  background-position: 0 0;
  mask-image: linear-gradient(180deg, #000 0 12px, transparent 12px);
  -webkit-mask-image: linear-gradient(180deg, #000 0 12px, transparent 12px);
  opacity: 0.5;
}

.page-about .about-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 4vw, 52px);
  align-items: center;
  position: relative;
  z-index: 1;
}

.page-about .about-hero__title {
  font-size: clamp(31px, 5.6vw, 56px);
  line-height: 1.14;
  letter-spacing: -0.02em;
  font-weight: 900;
  margin: 14px 0 18px;
  transform: skewX(-4deg);
  transform-origin: left bottom;
}

.page-about .about-hero__hl {
  color: var(--amber);
  display: inline-block;
}

.page-about .about-hero__lede {
  color: var(--muted);
  font-size: 16px;
  line-height: 1.78;
  max-width: 34em;
  margin: 0;
}

.page-about .about-hero__stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin-top: clamp(22px, 3.6vw, 34px);
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.page-about .about-stat {
  background: rgba(11, 13, 16, 0.78);
  padding: 14px 16px 15px;
}

.page-about .about-stat__num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(23px, 3.2vw, 31px);
  line-height: 1.05;
  font-weight: 700;
  color: var(--cyan);
  letter-spacing: -0.02em;
}

.page-about .about-stat:nth-child(2) .about-stat__num {
  color: var(--amber);
}

.page-about .about-stat:nth-child(3) .about-stat__num {
  color: var(--lime);
}

.page-about .about-stat:nth-child(4) .about-stat__num {
  color: var(--amber-soft);
}

.page-about .about-stat__label {
  display: block;
  margin-top: 6px;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--muted);
}

.page-about .about-hero__frame {
  position: relative;
  margin: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--panel);
  box-shadow: 0 22px 54px rgba(0, 0, 0, 0.55);
  transform: rotate(-1.4deg);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 26px), calc(100% - 26px) 100%, 0 100%);
}

.page-about .about-hero__frame img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 10 / 7;
  object-fit: cover;
  max-width: 100%;
}

.page-about .about-hero__frame .media-frame__caption {
  margin: 0;
  padding: 12px 16px 14px;
  font-size: 12px;
  line-height: 1.6;
  letter-spacing: 0.04em;
  color: var(--muted);
  border-top: 1px solid var(--line);
  background: rgba(11, 13, 16, 0.85);
}

/* ---------- TIMELINE ---------- */

.page-about .about-line {
  position: relative;
  padding: clamp(46px, 7vw, 92px) 0 clamp(38px, 5vw, 64px);
  background: var(--ink);
  overflow: hidden;
}

.page-about .about-line__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

.page-about .about-line__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.22;
  max-width: 100%;
}

.page-about .about-line::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background: linear-gradient(180deg, var(--ink) 0%, rgba(11, 13, 16, 0.35) 34%, rgba(11, 13, 16, 0.4) 66%, var(--ink) 100%);
}

.page-about .about-line .shell {
  position: relative;
  z-index: 1;
}

.page-about .about-line__track {
  position: relative;
  z-index: 1;
  display: flex;
  gap: var(--ab-gap);
  overflow-x: auto;
  scroll-snap-type: x proximity;
  padding: 6px var(--gutter) 20px;
  margin-top: clamp(6px, 1.4vw, 14px);
  scrollbar-width: thin;
  scrollbar-color: var(--amber-deep) var(--panel);
}

.page-about .about-line__track::-webkit-scrollbar {
  height: 6px;
}

.page-about .about-line__track::-webkit-scrollbar-track {
  background: var(--panel);
  border-radius: 999px;
}

.page-about .about-line__track::-webkit-scrollbar-thumb {
  background: var(--amber-deep);
  border-radius: 999px;
}

.page-about .about-line__track:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 4px;
}

.page-about .tl-node {
  flex: 0 0 clamp(250px, 80vw, 330px);
  scroll-snap-align: start;
  padding: var(--ab-pad);
  background: linear-gradient(180deg, rgba(21, 26, 33, 0.95), rgba(11, 13, 16, 0.95));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: inset 0 1px 0 rgba(237, 240, 244, 0.06);
  transition: border-color 0.24s var(--ease), transform 0.24s var(--ease);
}

.page-about .tl-node:hover {
  border-color: var(--amber);
  transform: translateY(-4px);
}

.page-about .tl-node--now {
  border-color: rgba(214, 255, 63, 0.5);
  background: linear-gradient(180deg, rgba(20, 34, 30, 0.95), rgba(11, 13, 16, 0.95));
}

.page-about .tl-node--now:hover {
  border-color: var(--lime);
}

.page-about .tl-node__head {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
}

.page-about .tl-node__ver {
  font-size: 27px;
  font-weight: 700;
  color: var(--amber);
  letter-spacing: -0.02em;
  transform: skewX(-6deg);
  display: inline-block;
}

.page-about .tl-node--now .tl-node__ver {
  color: var(--lime);
}

.page-about .tl-node__title {
  font-size: clamp(18px, 2.2vw, 21px);
  line-height: 1.42;
  font-weight: 800;
  margin: 0 0 10px;
}

.page-about .tl-node__body {
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.72;
  color: var(--muted);
}

.page-about .tl-node__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-about .tl-node__list li {
  position: relative;
  padding-left: 16px;
  font-size: 14px;
  line-height: 1.62;
  color: var(--text);
}

.page-about .tl-node__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 7px;
  height: 2px;
  background: var(--amber);
  transform: skewX(-24deg);
}

.page-about .tl-node--now .tl-node__list li::before {
  background: var(--lime);
}

.page-about .about-line__hint {
  margin: clamp(4px, 1vw, 10px) 0 0;
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
  position: relative;
  z-index: 1;
}

/* ---------- TEAM ---------- */

.page-about .about-team {
  position: relative;
  padding: clamp(48px, 7vw, 96px) 0;
  background:
    radial-gradient(720px 360px at 88% 6%, rgba(47, 211, 224, 0.14), transparent 64%),
    linear-gradient(180deg, var(--teal) 0%, #0a2b2f 62%, var(--ink) 100%);
  border-top: 1px solid var(--line);
}

.page-about .team-tabs {
  position: relative;
}

.page-about .team-tabs .tab-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  margin-bottom: 14px;
}

.page-about .team-tabs .tab-btn {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
  min-height: 56px;
  padding: 14px 18px;
  text-align: left;
  font-family: inherit;
  font-size: 15px;
  font-weight: 700;
  color: var(--text);
  background: rgba(11, 13, 16, 0.62);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: border-color 0.22s var(--ease), background 0.22s var(--ease), transform 0.22s var(--ease);
}

.page-about .team-tabs .tab-btn:hover {
  border-color: var(--amber-soft);
  transform: translateX(3px);
}

.page-about .team-tabs .tab-btn:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 3px;
}

.page-about .team-tabs .tab-btn[aria-selected="true"] {
  border-color: var(--amber);
  background: linear-gradient(160deg, rgba(255, 159, 28, 0.2), rgba(11, 13, 16, 0.88));
  color: #fff;
}

.page-about .tab-btn__num {
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--amber);
  flex: 0 0 auto;
}

.page-about .tab-btn__name {
  line-height: 1.4;
}

.page-about .team-tabs .tab-panel {
  padding: var(--ab-pad);
  background: rgba(11, 13, 16, 0.76);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: inset 0 1px 0 rgba(237, 240, 244, 0.05);
}

.page-about .tab-panel__title {
  font-size: clamp(18px, 2.3vw, 23px);
  line-height: 1.4;
  font-weight: 800;
  margin: 0 0 10px;
  color: var(--amber-soft);
}

.page-about .tab-panel__lede {
  margin: 0 0 clamp(16px, 2.4vw, 24px);
  font-size: 15px;
  line-height: 1.75;
  color: var(--muted);
  max-width: 40em;
}

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

.page-about .work-item {
  display: flex;
  gap: 14px;
  padding: 14px 16px;
  background: rgba(21, 26, 33, 0.72);
  border: 1px solid rgba(37, 48, 59, 0.9);
  border-left: 3px solid var(--cyan);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.page-about .work-item:nth-child(2) {
  border-left-color: var(--amber);
}

.page-about .work-item:nth-child(3) {
  border-left-color: var(--lime);
}

.page-about .work-item__num {
  flex: 0 0 auto;
  font-size: 13px;
  font-weight: 700;
  color: var(--muted);
  padding-top: 2px;
}

.page-about .work-item__title {
  margin: 0 0 6px;
  font-size: 15px;
  line-height: 1.5;
  font-weight: 700;
  color: var(--text);
}

.page-about .work-item__body p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
}

.page-about .about-team__figure {
  margin: clamp(26px, 4vw, 44px) 0 0;
  position: relative;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--panel);
  clip-path: polygon(0 0, calc(100% - 30px) 0, 100% 30px, 100% 100%, 0 100%);
}

.page-about .about-team__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 9 / 5;
  object-fit: cover;
  max-width: 100%;
}

.page-about .about-team__figure .media-frame__caption {
  margin: 0;
  padding: 12px 16px 14px;
  font-size: 12px;
  letter-spacing: 0.04em;
  line-height: 1.6;
  color: var(--muted);
  border-top: 1px solid var(--line);
  background: rgba(11, 13, 16, 0.85);
}

/* ---------- STRUCTURE ---------- */

.page-about .about-structure {
  padding: clamp(48px, 7vw, 96px) 0;
  background: var(--ink);
  border-top: 1px solid var(--line);
  position: relative;
}

.page-about .about-structure__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--ab-gap);
}

.page-about .struct-col {
  padding: var(--ab-pad);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(21, 26, 33, 0.66);
  box-shadow: inset 0 1px 0 rgba(237, 240, 244, 0.05);
}

.page-about .struct-col--guide {
  background: linear-gradient(170deg, rgba(78, 18, 38, 0.55), rgba(21, 26, 33, 0.85));
  border-color: rgba(255, 159, 28, 0.28);
}

.page-about .struct-col__head {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}

.page-about .struct-col__title {
  margin: 0;
  font-size: clamp(19px, 2.4vw, 24px);
  line-height: 1.36;
  font-weight: 800;
}

.page-about .struct-col__lede {
  margin: 0 0 clamp(16px, 2.4vw, 22px);
  font-size: 15px;
  line-height: 1.74;
  color: var(--muted);
}

.page-about .genre-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.page-about .genre {
  display: grid;
  grid-template-columns: auto 1fr;
  grid-template-areas:
    "num name"
    "num desc";
  column-gap: 12px;
  align-items: center;
  background: rgba(11, 13, 16, 0.82);
  padding: 11px 14px;
  transition: background 0.2s var(--ease);
}

.page-about .genre:hover {
  background: rgba(47, 211, 224, 0.12);
}

.page-about .genre__num {
  grid-area: num;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--cyan);
}

.page-about .genre__name {
  grid-area: name;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.4;
}

.page-about .genre__desc {
  grid-area: desc;
  font-size: 12.5px;
  line-height: 1.5;
  color: var(--muted);
}

.page-about .guide-steps {
  list-style: none;
  margin: 0 0 clamp(16px, 2.4vw, 22px);
  padding: 0;
  display: grid;
  gap: 10px;
  counter-reset: none;
}

.page-about .guide-step {
  display: flex;
  gap: 12px;
  padding: 12px 14px;
  background: rgba(11, 13, 16, 0.6);
  border: 1px solid rgba(255, 159, 28, 0.18);
  border-radius: var(--radius-sm);
}

.page-about .guide-step__num {
  flex: 0 0 auto;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--amber);
  padding-top: 3px;
}

.page-about .guide-step__title {
  margin: 0 0 4px;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.45;
  color: var(--text);
}

.page-about .guide-step__body p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.65;
  color: var(--muted);
}

.page-about .about-structure__link {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  font-size: 14px;
  font-weight: 700;
  color: var(--amber);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 159, 28, 0.5);
  transition: border-color 0.2s var(--ease), color 0.2s var(--ease);
}

.page-about .about-structure__link:hover {
  color: var(--amber-soft);
  border-bottom-color: var(--amber-soft);
}

.page-about .about-structure__link:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 3px;
}

/* ---------- BETA LIST ---------- */

.page-about .about-list {
  padding: clamp(46px, 6.5vw, 92px) 0;
  background:
    radial-gradient(700px 320px at 14% 4%, rgba(180, 95, 19, 0.24), transparent 66%),
    linear-gradient(180deg, var(--wine) 0%, #2c0c17 68%, var(--ink) 100%);
  border-top: 1px solid var(--line);
}

.page-about .status-legend {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  margin-bottom: clamp(20px, 3vw, 30px);
  padding: var(--ab-pad);
  border: 1px solid rgba(255, 159, 28, 0.24);
  border-radius: var(--radius);
  background: rgba(11, 13, 16, 0.62);
}

.page-about .status-legend__item {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.page-about .status-legend__name {
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.page-about .status-legend__text {
  font-size: 13px;
  line-height: 1.6;
  color: var(--muted);
}

.page-about .about-list__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--ab-gap);
}

.page-about .list-rule {
  padding: var(--ab-pad);
  border: 1px solid rgba(47, 211, 224, 0.26);
  border-radius: var(--radius);
  background: rgba(11, 13, 16, 0.7);
}

.page-about .list-rule--out {
  border-color: rgba(155, 166, 180, 0.3);
}

.page-about .list-rule__title {
  margin: 0 0 14px;
  font-size: clamp(17px, 2.1vw, 20px);
  line-height: 1.42;
  font-weight: 800;
  color: var(--cyan);
}

.page-about .list-rule--out .list-rule__title {
  color: var(--amber-soft);
}

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

.page-about .list-rule__items li {
  position: relative;
  padding-left: 18px;
  font-size: 14.5px;
  line-height: 1.68;
  color: var(--text);
}

.page-about .list-rule__items li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.7em;
  width: 8px;
  height: 8px;
  border: 1px solid var(--cyan);
  transform: rotate(45deg);
}

.page-about .list-rule--out .list-rule__items li::before {
  border-color: var(--amber-soft);
}

.page-about .about-list__note {
  margin: clamp(20px, 3vw, 30px) 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
}

.page-about .about-list__note a {
  color: var(--amber);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 159, 28, 0.5);
}

.page-about .about-list__note a:hover {
  color: var(--amber-soft);
}

/* ---------- CHANNEL ---------- */

.page-about .about-channel {
  padding: clamp(26px, 4vw, 44px) 0;
  background: var(--ink);
  border-top: 1px solid var(--line);
}

.page-about .about-channel__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  align-items: center;
  padding: clamp(18px, 3vw, 28px);
  border: 1px solid rgba(214, 255, 63, 0.3);
  border-radius: var(--radius);
  background: linear-gradient(120deg, rgba(36, 26, 74, 0.9), rgba(14, 58, 63, 0.75));
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 22px), calc(100% - 22px) 100%, 0 100%);
}

.page-about .about-channel__title {
  margin: 0 0 6px;
  font-size: clamp(16px, 2.1vw, 20px);
  line-height: 1.45;
  font-weight: 800;
}

.page-about .about-channel__sub {
  margin: 0;
  font-size: 14px;
  line-height: 1.65;
  color: var(--muted);
}

.page-about .about-channel__mail {
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.page-about .about-channel__mail .contact-value {
  font-family: var(--font-mono);
  font-size: 15px;
  color: var(--lime);
  text-decoration: none;
  word-break: break-all;
}

.page-about .about-channel__mail .contact-value:hover {
  text-decoration: underline;
}

.page-about .about-channel__hint {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.page-about .about-channel__btn {
  justify-self: start;
}

/* ---------- RESPONSIVE ---------- */

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

  .page-about .status-legend {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
  }

  .page-about .status-legend__item {
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
  }
}

@media (min-width: 760px) {
  .page-about .team-tabs .tab-list {
    grid-template-columns: 5fr 4fr 4fr;
    align-items: end;
    gap: 14px;
  }

  .page-about .team-tabs .tab-btn {
    align-items: flex-start;
    flex-direction: column;
    gap: 8px;
    padding: 18px 20px;
  }

  .page-about .team-tabs .tab-btn:nth-child(1) {
    min-height: 148px;
  }

  .page-about .team-tabs .tab-btn:nth-child(2) {
    min-height: 118px;
  }

  .page-about .team-tabs .tab-btn:nth-child(3) {
    min-height: 92px;
  }

  .page-about .tab-btn__name {
    font-size: 17px;
  }

  .page-about .about-structure__grid {
    grid-template-columns: 7fr 5fr;
    align-items: start;
  }

  .page-about .about-list__grid {
    grid-template-columns: 6fr 5fr;
  }
}

@media (min-width: 900px) {
  .page-about .about-hero__grid {
    grid-template-columns: 7fr 5fr;
  }

  .page-about .about-channel__inner {
    grid-template-columns: 1fr auto auto;
    gap: 26px;
  }

  .page-about .about-line__track {
    padding-left: max(var(--gutter), calc((100vw - var(--max)) / 2 + var(--gutter)));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .tl-node,
  .page-about .team-tabs .tab-btn {
    transition: none;
  }

  .page-about .tl-node:hover,
  .page-about .team-tabs .tab-btn:hover {
    transform: none;
  }
}