.page-about {
  --about-pad-y: clamp(48px, 7vw, 88px);
  --about-hair: rgba(201, 165, 92, 0.3);
  background: var(--indigo-900);
  color: var(--paper-100);
  overflow-x: hidden;
}

.page-about p {
  margin: 0 0 14px;
  font-size: 16px;
  line-height: 1.85;
}

.page-about h2 {
  margin: 0 0 16px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(24px, 4.4vw, 40px);
  line-height: 1.16;
  letter-spacing: -0.01em;
}

.page-about .index-label {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--mist-400);
}

.page-about .breadcrumb {
  margin-bottom: 26px;
}

.page-about .breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--mist-400);
}

.page-about .breadcrumb__item + .breadcrumb__item::before {
  content: "/";
  margin-right: 8px;
  color: rgba(147, 162, 184, 0.6);
}

.page-about .breadcrumb__link {
  color: var(--gold-200);
  text-decoration: none;
  border-bottom: 1px solid var(--about-hair);
}

.page-about .breadcrumb__link:hover {
  border-bottom-color: var(--gold-500);
}

/* 首屏 */
.page-about .about-hero {
  position: relative;
  padding: clamp(26px, 4vw, 40px) 0 clamp(52px, 7vw, 92px);
  background:
    radial-gradient(120% 90% at 88% -10%, rgba(36, 64, 110, 0.85) 0%, rgba(11, 22, 38, 0) 62%),
    var(--indigo-900);
  overflow: hidden;
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  top: -40%;
  right: -30%;
  width: 110%;
  height: 170%;
  background: linear-gradient(
    104deg,
    rgba(201, 165, 92, 0) 36%,
    rgba(201, 165, 92, 0.16) 46%,
    rgba(201, 165, 92, 0.03) 58%,
    rgba(201, 165, 92, 0) 66%
  );
  animation: about-beam 12s linear infinite alternate;
  pointer-events: none;
}

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

.page-about .about-hero__title {
  margin: 0 0 20px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(32px, 7.2vw, 74px);
  line-height: 1.06;
  letter-spacing: -0.015em;
}

.page-about .about-hero__lede {
  max-width: 34em;
  font-size: clamp(15px, 2.4vw, 18px);
  line-height: 1.85;
  color: rgba(242, 236, 224, 0.82);
}

.page-about .about-hero__facts {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  margin: 30px 0 34px;
  border-top: 1px solid var(--about-hair);
  border-bottom: 1px solid var(--about-hair);
}

.page-about .about-fact {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 14px 0;
  border-bottom: 1px solid rgba(147, 162, 184, 0.18);
}

.page-about .about-fact:last-child {
  border-bottom: 0;
}

.page-about .about-fact__k {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 22px;
  letter-spacing: 0.02em;
  color: var(--gold-200);
}

.page-about .about-fact__v {
  margin: 0;
  font-size: 13px;
  color: var(--mist-400);
}

.page-about .about-quote {
  margin: 0;
  padding: 4px 0 4px 18px;
  border-left: 3px solid var(--gold-500);
  font-family: var(--font-serif);
  font-size: clamp(19px, 3.4vw, 27px);
  line-height: 1.6;
  color: var(--gold-200);
}

/* 约定的三件事 */
.page-about .about-pacts {
  padding: var(--about-pad-y) 0;
  background: var(--indigo-700);
  border-top: 2px solid var(--ink-950);
}

.page-about .about-pacts__lede {
  max-width: 34em;
  color: rgba(242, 236, 224, 0.8);
}

.page-about .about-pacts__list {
  display: grid;
  gap: 16px;
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
}

.page-about .pact {
  padding: 24px 20px 22px;
  background: var(--indigo-900);
  border: 1px solid var(--about-hair);
  border-radius: var(--radius);
  box-shadow: 6px 6px 0 rgba(5, 10, 18, 0.6);
}

.page-about .pact__num {
  display: block;
  margin-bottom: 10px;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--gold-500);
}

.page-about .pact__title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 19px;
  line-height: 1.3;
}

.page-about .pact__text {
  margin: 0 0 12px;
  font-size: 14.5px;
  line-height: 1.85;
  color: rgba(242, 236, 224, 0.78);
}

.page-about .pact__link {
  font-size: 13px;
  color: var(--gold-200);
  text-decoration: none;
  border-bottom: 1px solid var(--gold-200);
}

.page-about .pact__link:hover {
  border-bottom-width: 2px;
  border-bottom-color: var(--gold-500);
}

/* 时间线 */
.page-about .about-timeline {
  padding: var(--about-pad-y) 0;
  background: var(--indigo-900);
}

.page-about .about-timeline__lede {
  max-width: 34em;
  color: rgba(242, 236, 224, 0.78);
}

.page-about .about-shot-wrap {
  margin: 26px 0 34px;
}

.page-about .about-shot {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border: 2px solid var(--about-hair);
  border-radius: var(--radius);
  box-shadow: 8px 8px 0 rgba(5, 10, 18, 0.55);
  object-fit: cover;
}

.page-about .about-shot__cap {
  margin: 12px 0 0;
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--mist-400);
}

.page-about .tl {
  position: relative;
  margin: 0;
  padding: 0 0 0 16px;
  list-style: none;
}

.page-about .tl::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: linear-gradient(180deg, var(--gold-500) 0%, rgba(201, 165, 92, 0.14) 100%);
}

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

.page-about .tl__item + .tl__item {
  margin-top: 4px;
}

.page-about .tl__panel {
  border-bottom: 1px solid rgba(147, 162, 184, 0.18);
}

.page-about .tl__summary {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: baseline;
  gap: 12px;
  padding: 16px 0;
  cursor: pointer;
  list-style: none;
}

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

.page-about .tl__num {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--mist-400);
  transition: color 0.22s ease;
}

.page-about .tl__stage {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(17px, 2.8vw, 23px);
  line-height: 1.32;
}

.page-about .tl__hint {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--mist-400);
  white-space: nowrap;
}

.page-about .tl__hint::after {
  content: " +";
  color: var(--gold-500);
}

.page-about .tl__panel[open] .tl__num {
  color: var(--gold-500);
}

.page-about .tl__panel[open] .tl__hint::after {
  content: " −";
}

.page-about .tl__body {
  padding: 0 0 18px 0;
  max-width: 34em;
}

.page-about .tl__body p {
  margin: 0;
  font-family: var(--font-serif);
  font-size: 16px;
  line-height: 1.85;
  color: rgba(242, 236, 224, 0.82);
}

/* 会员中心 */
.page-about .about-member {
  padding: var(--about-pad-y) 0;
  background: var(--paper-100);
  color: var(--indigo-900);
  border-top: 2px solid var(--ink-950);
  border-bottom: 2px solid var(--ink-950);
}

.page-about .about-member .index-label {
  color: var(--indigo-500);
}

.page-about .about-member h2 {
  color: var(--indigo-900);
}

.page-about .about-member p {
  color: rgba(11, 22, 38, 0.78);
}

.page-about .about-member__inner {
  display: grid;
  gap: 30px;
}

.page-about .about-member__list {
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
}

.page-about .member-item {
  padding: 16px 0;
  border-top: 1px solid rgba(11, 22, 38, 0.16);
}

.page-about .member-item__title {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 17px;
  line-height: 1.4;
  color: var(--indigo-900);
}

.page-about .member-item__num {
  display: inline-block;
  margin-right: 8px;
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--clay-600);
}

.page-about .member-item p {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
}

.page-about .side-card {
  padding: 24px 22px;
  background: var(--indigo-900);
  color: var(--paper-100);
  border-left: 4px solid var(--clay-600);
  border-radius: var(--radius);
  box-shadow: 6px 6px 0 rgba(5, 10, 18, 0.22);
}

.page-about .side-card__label {
  margin: 0 0 10px;
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--gold-500);
}

.page-about .side-card p {
  margin: 0 0 16px;
  font-size: 14px;
  line-height: 1.8;
  color: rgba(242, 236, 224, 0.82);
}

/* 双栏主体 */
.page-about .about-body {
  padding: var(--about-pad-y) 0;
  background: var(--indigo-900);
}

.page-about .about-body__inner {
  display: grid;
  gap: 40px;
}

.page-about .about-body__main > section + section {
  margin-top: 52px;
}

.page-about .about-team__grid {
  display: grid;
  gap: 24px;
  margin-top: 22px;
}

.page-about .about-team__text p {
  color: rgba(242, 236, 224, 0.8);
}

.page-about .role-list {
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
}

.page-about .role {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: baseline;
  gap: 4px 12px;
  padding: 14px 0;
  border-top: 1px solid rgba(147, 162, 184, 0.2);
}

.page-about .role__name {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 16px;
  color: var(--gold-200);
}

.page-about .role__meta {
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--jade-500);
}

.page-about .role__desc {
  grid-column: 1 / -1;
  font-size: 14px;
  line-height: 1.8;
  color: rgba(242, 236, 224, 0.74);
}

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

.page-about .about-team__img {
  display: block;
  width: 100%;
  max-width: 100%;
  aspect-ratio: 1 / 1;
  height: auto;
  object-fit: cover;
  border: 2px solid var(--about-hair);
  border-radius: var(--radius);
  box-shadow: 8px 8px 0 rgba(5, 10, 18, 0.5);
}

/* 服务地区 */
.page-about .about-region {
  padding: 26px 20px 30px;
  background: var(--indigo-700);
  border-radius: var(--radius);
  border: 1px solid rgba(201, 165, 92, 0.22);
}

.page-about .about-region p {
  color: rgba(242, 236, 224, 0.8);
}

.page-about .about-region__figure {
  margin: 22px 0 20px;
}

.page-about .about-region__img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: 2px;
  opacity: 0.92;
}

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

.page-about .cov__row {
  position: relative;
  display: grid;
  grid-template-columns: 5.6em minmax(0, 1fr) auto;
  align-items: center;
  gap: 10px;
  padding: 6px 0;
  outline: none;
}

.page-about .cov__row:focus-visible {
  outline: 2px solid var(--gold-500);
  outline-offset: 3px;
}

.page-about .cov__name {
  font-size: 13px;
  color: var(--paper-100);
}

.page-about .cov__track {
  display: block;
  height: 10px;
  background: rgba(147, 162, 184, 0.2);
  border-radius: 2px;
  overflow: hidden;
}

.page-about .cov__fill {
  display: block;
  height: 100%;
  background: linear-gradient(90deg, var(--jade-500) 0%, var(--jade-200) 100%);
}

.page-about .cov__fill--1 { width: 100%; }
.page-about .cov__fill--2 { width: 74%; }
.page-about .cov__fill--3 { width: 46%; }
.page-about .cov__fill--4 { width: 22%; }

.page-about .cov__state {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  padding: 3px 8px;
  border-radius: 2px;
  white-space: nowrap;
}

.page-about .cov__state--open {
  background: var(--jade-200);
  color: #12271f;
}

.page-about .cov__state--doing {
  background: rgba(95, 160, 139, 0.24);
  color: var(--jade-200);
}

.page-about .cov__state--plan {
  background: rgba(147, 162, 184, 0.18);
  color: var(--mist-400);
}

.page-about .cov__tip {
  position: absolute;
  left: 0;
  bottom: calc(100% + 6px);
  z-index: 2;
  padding: 6px 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  white-space: nowrap;
  background: var(--indigo-900);
  color: var(--gold-200);
  border: 1px solid var(--about-hair);
  border-radius: 2px;
  opacity: 0;
  transform: translateY(4px);
  transition: opacity 0.14s ease, transform 0.14s ease;
  pointer-events: none;
}

.page-about .cov__row:hover .cov__tip,
.page-about .cov__row:focus .cov__tip,
.page-about .cov__row:focus-visible .cov__tip {
  opacity: 1;
  transform: translateY(0);
}

/* 来源 */
.page-about .src-list {
  display: grid;
  gap: 14px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}

.page-about .src {
  padding: 18px 18px 16px;
  background: rgba(22, 41, 74, 0.72);
  border-radius: var(--radius);
  border-left: 2px solid var(--gold-500);
}

.page-about .src__title {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 16px;
  color: var(--gold-200);
}

.page-about .src__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: rgba(242, 236, 224, 0.78);
}

.page-about .about-source__flow {
  margin: 20px 0 0;
  font-size: 11.5px;
  letter-spacing: 0.04em;
  color: var(--mist-400);
  word-break: break-word;
}

.page-about .about-source__more {
  margin: 12px 0 0;
  font-size: 14px;
  color: rgba(242, 236, 224, 0.78);
}

.page-about .about-source__more a {
  color: var(--gold-200);
  text-decoration: none;
  border-bottom: 1px solid var(--gold-200);
}

.page-about .about-source__more a:hover {
  border-bottom-width: 2px;
  border-bottom-color: var(--gold-500);
}

/* 流程索引卡 */
.page-about .about-flow {
  align-self: start;
  padding: 22px 18px 20px;
  background: var(--indigo-700);
  border: 1px solid rgba(201, 165, 92, 0.28);
  border-radius: var(--radius);
}

.page-about .about-flow .index-label {
  margin-bottom: 10px;
}

.page-about .about-flow__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 19px;
  line-height: 1.35;
}

.page-about .flow {
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 6px;
}

.page-about .flow__step {
  display: grid;
  grid-template-columns: 26px minmax(0, 1fr);
  gap: 10px;
  padding: 11px 10px;
  border-left: 2px solid transparent;
  border-radius: 2px;
  transition: background-color 0.22s ease, border-color 0.22s ease;
}

.page-about .flow__step:hover {
  background: var(--indigo-500);
  border-left-color: var(--gold-500);
}

.page-about .flow__num {
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--gold-500);
}

.page-about .flow__title {
  margin: 0 0 3px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 14px;
  color: var(--paper-100);
}

.page-about .flow__text {
  margin: 0;
  font-size: 12.5px;
  line-height: 1.7;
  color: rgba(242, 236, 224, 0.72);
}

.page-about .about-flow__note {
  margin: 16px 0 0;
  padding-top: 14px;
  border-top: 1px solid rgba(147, 162, 184, 0.2);
  font-size: 12px;
  line-height: 1.8;
  color: var(--mist-400);
}

/* 结尾 */
.page-about .about-cta {
  padding: var(--about-pad-y) 0;
  background:
    radial-gradient(90% 120% at 12% 0%, rgba(36, 64, 110, 0.9) 0%, rgba(11, 22, 38, 0) 66%),
    var(--indigo-700);
  border-top: 2px solid var(--ink-950);
}

.page-about .about-cta h2 {
  max-width: 18em;
}

.page-about .about-cta__lede {
  max-width: 34em;
  color: rgba(242, 236, 224, 0.8);
}

.page-about .about-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}

.page-about .about-cta__actions .btn--ghost {
  color: var(--paper-100);
  border-color: rgba(201, 165, 92, 0.5);
}

.page-about .about-cta__actions .btn--ghost:hover {
  border-color: var(--gold-500);
}

@keyframes about-beam {
  from { transform: translateX(-6%); }
  to { transform: translateX(6%); }
}

@media (min-width: 720px) {
  .page-about .about-hero__facts {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-about .about-fact {
    flex-direction: column;
    gap: 4px;
    padding: 16px 0 16px 18px;
    border-bottom: 0;
    border-left: 1px solid rgba(147, 162, 184, 0.22);
  }

  .page-about .about-fact:first-child {
    padding-left: 0;
    border-left: 0;
  }

  .page-about .about-team__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    align-items: start;
    gap: 28px;
  }

  .page-about .src-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 860px) {
  .page-about .about-pacts__list {
    grid-template-columns: 1.05fr 0.9fr 1fr;
    align-items: start;
    gap: 18px;
  }

  .page-about .pact:nth-child(2) {
    margin-top: 26px;
  }

  .page-about .pact:nth-child(3) {
    margin-top: 52px;
  }

  .page-about .about-member__inner {
    grid-template-columns: minmax(0, 1fr) 300px;
    gap: 44px;
    align-items: start;
  }
}

@media (min-width: 960px) {
  .page-about .about-body__inner {
    grid-template-columns: minmax(0, 1fr) 316px;
    gap: 48px;
    align-items: start;
  }

  .page-about .about-flow {
    position: sticky;
    top: 96px;
  }

  .page-about .about-region {
    padding: 32px 30px 34px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-hero::before {
    animation: none;
  }

  .page-about .tl__num,
  .page-about .flow__step,
  .page-about .cov__tip {
    transition: none;
  }
}
<<<END>>>