.page-about {
  background: var(--stand);
  color: var(--ink);
  overflow-x: clip;
}

/* ---------- hero ---------- */
.page-about .hero {
  position: relative;
  overflow: hidden;
  padding: clamp(20px, 4vw, 40px) 0 clamp(36px, 6vw, 76px);
  background: linear-gradient(168deg, var(--stand) 0%, var(--stand) 52%, #ece3d4 100%);
}

.page-about .hero::before {
  content: "";
  position: absolute;
  top: -80px;
  right: -60px;
  width: min(48%, 520px);
  height: 78%;
  background: repeating-linear-gradient(90deg, var(--red) 0 22px, var(--ivory) 22px 44px);
  opacity: .1;
  transform: rotate(-7deg);
  pointer-events: none;
}

.page-about .hero__grid {
  position: relative;
  display: grid;
  gap: clamp(26px, 4vw, 52px);
  align-items: start;
}

.page-about .hero__kicker {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 18px 0 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--wine);
}

.page-about .hero__kicker::before {
  content: "";
  width: 34px;
  height: 3px;
  background: var(--red);
  flex: none;
}

.page-about .hero__title {
  margin: 0;
  font-size: clamp(30px, 6.4vw, 62px);
  font-weight: 300;
  line-height: 1.04;
  letter-spacing: -.015em;
  color: var(--green-deep);
}

.page-about .hero__title strong {
  font-weight: 800;
  color: var(--red);
}

.page-about .hero__lead {
  max-width: 58ch;
  margin: 20px 0 0;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.85;
  color: #2b342f;
}

.page-about .hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.page-about .hero__facts {
  list-style: none;
  margin: 30px 0 0;
  padding: 18px 0 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px 18px;
  border-top: 2px solid rgba(7, 26, 20, .16);
}

.page-about .hero__num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(19px, 2.6vw, 27px);
  font-weight: 700;
  color: var(--green);
  line-height: 1.1;
}

.page-about .hero__label {
  display: block;
  margin-top: 5px;
  font-size: 12px;
  line-height: 1.5;
  color: rgba(7, 26, 20, .62);
}

.page-about .hero__index {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  margin: 26px 0 0;
  padding: 0;
}

.page-about .hero__index a {
  display: inline-flex;
  align-items: baseline;
  gap: 7px;
  padding: 4px 0;
  font-size: 13px;
  color: var(--green);
  text-decoration: none;
  border-bottom: 1px solid rgba(11, 61, 46, .28);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-about .hero__index a:hover,
.page-about .hero__index a:focus-visible {
  color: var(--red);
  border-bottom-color: var(--red);
}

.page-about .hero__idx {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .1em;
  color: var(--wine);
}

.page-about .hero__media {
  box-shadow: var(--shadow-2);
}

/* ---------- chapter base ---------- */
.page-about .chapter {
  padding: clamp(40px, 6.5vw, 88px) 0;
}

.page-about .chapter--start {
  background: var(--stand);
}

.page-about .chapter--dark {
  background: var(--green);
  color: var(--stand);
}

.page-about .chapter--dark .section-kicker,
.page-about .chapter--dark .section-title {
  color: var(--ivory);
}

.page-about .chapter--dark .section-note {
  color: rgba(247, 243, 236, .76);
}

.page-about .chapter--dark .section-kicker::before {
  background: var(--gold);
}

.page-about .chapter--tools {
  background: var(--ivory);
}

.page-about .chapter--team {
  background: var(--stand);
}

.page-about .chapter--wine {
  background: linear-gradient(142deg, var(--wine) 0%, var(--red-deep) 62%, var(--red) 100%);
  color: var(--ivory);
}

.page-about .chapter--wine .section-kicker,
.page-about .chapter--wine .section-title {
  color: var(--ivory);
}

.page-about .chapter--wine .section-note {
  color: rgba(255, 253, 247, .82);
}

.page-about .chapter--wine .section-kicker::before {
  background: var(--gold);
}

.page-about .chapter--region {
  background: var(--stand);
}

.page-about .chapter--next {
  background: var(--ivory);
  border-top: 4px solid var(--red);
}

/* ---------- 三条主线 ---------- */
.page-about .lines {
  display: grid;
  gap: 18px;
  margin-top: clamp(24px, 3vw, 38px);
}

.page-about .line-card {
  background: var(--ivory);
  border-top: 4px solid var(--red);
  padding: 22px 20px 24px;
  box-shadow: var(--shadow-1);
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.page-about .line-card:nth-child(2) {
  border-top-color: var(--gold);
}

.page-about .line-card:nth-child(3) {
  border-top-color: var(--green);
}

.page-about .line-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-2);
}

.page-about .line-card__idx {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .16em;
  color: var(--wine);
}

.page-about .line-card__title {
  margin: 0 0 10px;
  font-size: clamp(17px, 2vw, 20px);
  line-height: 1.35;
  color: var(--green-deep);
}

.page-about .line-card__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: #3a443e;
}

/* ---------- 时间线 ---------- */
.page-about .tl {
  list-style: none;
  margin: clamp(24px, 3vw, 40px) 0 0;
  padding: 0;
}

.page-about .tl__item {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  column-gap: 14px;
  row-gap: 14px;
  padding: 22px 0;
  border-top: 1px solid rgba(247, 243, 236, .18);
  transition: background var(--dur) var(--ease);
}

.page-about .tl__item:last-child {
  border-bottom: 1px solid rgba(247, 243, 236, .18);
}

.page-about .tl__rail {
  position: relative;
  grid-column: 1;
  grid-row: 1 / span 2;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  padding-top: 2px;
}

.page-about .tl__rail::before {
  content: "";
  position: absolute;
  top: 38px;
  bottom: -24px;
  left: 50%;
  width: 2px;
  transform: translateX(-1px);
  background: linear-gradient(180deg, rgba(245, 197, 66, .8), rgba(245, 197, 66, .08));
}

.page-about .tl__item:last-child .tl__rail::before {
  display: none;
}

.page-about .tl__node {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border: 1px solid rgba(245, 197, 66, .65);
  background: rgba(7, 26, 20, .5);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--gold);
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-about .tl__item:hover .tl__node,
.page-about .tl__item:focus-within .tl__node {
  background: var(--gold);
  color: var(--green-deep);
}

.page-about .tl__body {
  grid-column: 2;
  grid-row: 1;
  transition: transform var(--dur) var(--ease);
}

.page-about .tl__item:hover .tl__body {
  transform: translateY(-2px);
}

.page-about .tl__stage {
  margin: 0 0 7px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: .16em;
  color: var(--gold);
}

.page-about .tl__title {
  margin: 0 0 9px;
  font-size: clamp(17px, 2.2vw, 23px);
  line-height: 1.32;
  font-weight: 600;
  color: var(--ivory);
}

.page-about .tl__body p {
  margin: 0;
  max-width: 62ch;
  font-size: 14.5px;
  line-height: 1.85;
  color: rgba(247, 243, 236, .78);
}

.page-about .tl__tags {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 14px 0 0;
  padding: 0;
}

.page-about .tl__note {
  grid-column: 2;
  grid-row: 2;
  padding: 12px 14px;
  background: rgba(255, 253, 247, .07);
  border: 1px solid rgba(247, 243, 236, .22);
  border-left: 3px solid rgba(245, 197, 66, .55);
  backdrop-filter: blur(6px);
}

.page-about .tl__note summary {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: .16em;
  color: var(--gold);
}

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

.page-about .tl__note summary::after {
  content: "＋";
  margin-left: auto;
  font-size: 13px;
}

.page-about .tl__note[open] summary::after {
  content: "－";
}

.page-about .tl__note summary:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 3px;
}

.page-about .tl__note p {
  margin: 10px 0 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: rgba(247, 243, 236, .82);
}

/* ---------- 工具里程碑 ---------- */
.page-about .tools__panels {
  margin-top: clamp(24px, 3vw, 38px);
}

.page-about .tools__panel {
  display: flex;
  flex-direction: column;
  border-left: 4px solid var(--red);
}

.page-about .tools__panel--alt {
  border-left-color: var(--green);
}

.page-about .tools__idx {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .16em;
  color: var(--wine);
}

.page-about .tools__title {
  margin: 0;
  font-size: clamp(18px, 2.2vw, 23px);
  color: var(--green-deep);
}

.page-about .tools__panel .panel__body > p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: #3a443e;
}

.page-about .tools__list {
  list-style: none;
  margin: 18px 0 22px;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-about .tools__list li {
  display: grid;
  gap: 4px;
  padding-bottom: 10px;
  border-bottom: 1px dashed rgba(7, 26, 20, .18);
}

.page-about .tools__k {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: .12em;
  color: var(--wine);
}

.page-about .tools__v {
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink);
}

.page-about .tools__panel .btn {
  margin-top: auto;
  align-self: flex-start;
}

/* ---------- 团队 ---------- */
.page-about .team__grid {
  display: grid;
  gap: clamp(26px, 4vw, 48px);
  align-items: start;
}

.page-about .team__media {
  box-shadow: var(--shadow-1);
}

.page-about .team__bars {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-about .team__bar {
  display: grid;
  grid-template-columns: 78px minmax(0, 1fr) 32px;
  align-items: center;
  gap: 12px;
}

.page-about .team__bar-label {
  font-size: 13px;
  color: var(--green-deep);
}

.page-about .team__bar-track {
  display: block;
  height: 12px;
  background: rgba(7, 26, 20, .1);
  overflow: hidden;
}

.page-about .team__bar-fill {
  display: block;
  height: 100%;
}

.page-about .team__bar-fill--a {
  width: 33.4%;
  background: var(--red);
}

.page-about .team__bar-fill--b {
  width: 27.8%;
  background: var(--green);
}

.page-about .team__bar-fill--c {
  width: 16.7%;
  background: var(--gold);
}

.page-about .team__bar-num {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 700;
  color: var(--green-deep);
  text-align: right;
}

.page-about .team__method {
  margin-top: 28px;
  padding: 20px;
  background: var(--ivory);
  border-left: 4px solid var(--gold);
  box-shadow: var(--shadow-1);
}

.page-about .team__method-title {
  margin: 0 0 14px;
  font-size: 15px;
  letter-spacing: .04em;
  color: var(--wine);
}

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

.page-about .team__method-list li {
  font-size: 14px;
  line-height: 1.8;
  color: #3a443e;
  padding-left: 14px;
  position: relative;
}

.page-about .team__method-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .7em;
  width: 6px;
  height: 6px;
  background: var(--red);
}

.page-about .team__method-k {
  display: inline-block;
  margin-right: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--green);
  border-bottom: 1px solid rgba(11, 61, 46, .35);
}

/* ---------- 社群 ---------- */
.page-about .community__grid {
  display: grid;
  gap: clamp(26px, 4vw, 48px);
  align-items: start;
}

.page-about .community__media {
  box-shadow: var(--shadow-2);
}

.page-about .community__forms {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  gap: 18px;
}

.page-about .community__forms li {
  display: grid;
  grid-template-columns: 54px minmax(0, 1fr);
  gap: 14px;
  padding-top: 16px;
  border-top: 1px solid rgba(255, 253, 247, .26);
}

.page-about .community__num {
  font-family: var(--font-mono);
  font-size: clamp(24px, 3vw, 32px);
  font-weight: 700;
  color: var(--gold);
  line-height: 1;
}

.page-about .community__title {
  margin: 0 0 7px;
  font-size: 16px;
  color: var(--ivory);
}

.page-about .community__forms p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: rgba(255, 253, 247, .84);
}

.page-about .community__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-about .chapter--wine .btn--ghost {
  color: var(--ivory);
  border-color: rgba(255, 253, 247, .6);
}

.page-about .chapter--wine .btn--ghost:hover,
.page-about .chapter--wine .btn--ghost:focus-visible {
  border-color: var(--gold);
  color: var(--gold);
}

/* ---------- 服务信息 ---------- */
.page-about .reg__grid {
  display: grid;
  gap: 18px;
  margin-top: clamp(24px, 3vw, 36px);
}

.page-about .reg__panel {
  background: var(--green);
  color: var(--stand);
  padding: 22px 20px;
  border-top: 4px solid var(--gold);
}

.page-about .reg__panel--alt {
  background: var(--green-deep);
  border-top-color: var(--red);
}

.page-about .reg__panel-title {
  margin: 0 0 16px;
  font-size: 14px;
  letter-spacing: .08em;
  color: var(--gold);
}

.page-about .reg__row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 4px 12px;
  padding: 12px 0;
  border-bottom: 1px solid rgba(247, 243, 236, .16);
}

.page-about .reg__row:last-of-type {
  border-bottom: 0;
}

.page-about .reg__label {
  flex: 0 0 88px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: .12em;
  color: rgba(247, 243, 236, .6);
}

.page-about .reg__value {
  flex: 1 1 190px;
  font-size: 14.5px;
  line-height: 1.7;
  word-break: break-word;
  color: var(--ivory);
}

.page-about .reg__value--mono {
  font-family: var(--font-mono);
  letter-spacing: .04em;
}

.page-about .reg__copy {
  flex: none;
  min-height: 32px;
  padding: 4px 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--gold);
  background: transparent;
  border: 1px solid rgba(245, 197, 66, .5);
  cursor: pointer;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-about .reg__copy:hover,
.page-about .reg__copy:focus-visible {
  background: var(--gold);
  color: var(--green-deep);
}

.page-about .reg__copy:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 2px;
}

.page-about .reg__hint {
  margin: 14px 0 0;
  font-size: 13px;
  line-height: 1.8;
  color: rgba(247, 243, 236, .72);
}

/* ---------- 延伸入口 ---------- */
.page-about .next__list {
  list-style: none;
  margin: clamp(22px, 3vw, 34px) 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-about .next__link {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  grid-template-rows: auto auto;
  gap: 2px 14px;
  padding: 18px 20px;
  background: var(--stand);
  border: 1px solid rgba(7, 26, 20, .12);
  border-left: 4px solid var(--red);
  text-decoration: none;
  color: var(--ink);
  transition: transform var(--dur) var(--ease), background var(--dur) var(--ease), border-left-color var(--dur) var(--ease);
}

.page-about .next__link:hover,
.page-about .next__link:focus-visible {
  transform: translateY(-2px);
  background: var(--ivory);
  border-left-color: var(--gold);
}

.page-about .next__link:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 2px;
}

.page-about .next__idx {
  grid-row: 1 / span 2;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--wine);
  padding-top: 3px;
}

.page-about .next__label {
  font-size: 16px;
  font-weight: 600;
  color: var(--green-deep);
}

.page-about .next__desc {
  font-size: 13px;
  line-height: 1.7;
  color: #4b544e;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-about .hero__facts {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

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

@media (min-width: 820px) {
  .page-about .lines {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-about .tools__panels {
    align-items: stretch;
  }

  .page-about .team__grid {
    grid-template-columns: minmax(0, .82fr) minmax(0, 1.18fr);
  }

  .page-about .community__grid {
    grid-template-columns: minmax(0, .92fr) minmax(0, 1.08fr);
  }
}

@media (min-width: 900px) {
  .page-about .hero__grid {
    grid-template-columns: minmax(0, 1.06fr) minmax(0, .94fr);
  }

  .page-about .tl__item {
    grid-template-columns: 60px minmax(0, 1.32fr) minmax(0, .78fr);
    column-gap: clamp(20px, 3vw, 44px);
    row-gap: 0;
    padding: 26px 0;
  }

  .page-about .tl__rail {
    grid-column: 1;
    grid-row: 1;
  }

  .page-about .tl__rail::before {
    bottom: -26px;
  }

  .page-about .tl__body {
    grid-column: 2;
    grid-row: 1;
  }

  .page-about .tl__note {
    grid-column: 3;
    grid-row: 1;
    align-self: start;
  }
}

@media (min-width: 1120px) {
  .page-about .reg__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
    gap: 22px;
  }

  .page-about .next__list {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-about .next__link {
    grid-template-columns: 1fr;
    grid-template-rows: auto auto auto;
    gap: 6px;
    padding: 22px 20px;
  }

  .page-about .next__idx {
    grid-row: auto;
    padding-top: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .line-card,
  .page-about .tl__body,
  .page-about .tl__node,
  .page-about .next__link {
    transition: opacity var(--dur) var(--ease);
  }

  .page-about .line-card:hover,
  .page-about .tl__item:hover .tl__body,
  .page-about .next__link:hover,
  .page-about .next__link:focus-visible {
    transform: none;
  }
}
<<<END>>>