.page-about {
  --about-hair: 1px solid var(--cs-ink-08);
  color: var(--cs-ink);
}

.page-about .cs-breadcrumb {
  margin-bottom: clamp(18px, 3vw, 32px);
}

/* ---------- 开篇：刊头式双栏 ---------- */
.page-about .about-open {
  padding-top: clamp(12px, 3vw, 34px);
}

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

.page-about .about-open__h1 {
  font-family: var(--cs-font-display);
  font-weight: 400;
  font-size: clamp(34px, 7.4vw, 66px);
  line-height: 1.12;
  letter-spacing: 0.02em;
  margin: 10px 0 0;
  color: var(--cs-ink);
}

.page-about .about-open__h1 em {
  font-style: normal;
  color: var(--cs-red);
  position: relative;
}

.page-about .about-open__h1 em::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0.06em;
  height: 3px;
  background: linear-gradient(90deg, var(--cs-gold), transparent);
  border-radius: 2px;
}

.page-about .about-open__text {
  margin: 16px 0 0;
  max-width: 58ch;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.85;
  color: var(--cs-ink-70);
}

.page-about .about-open__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(22px, 3vw, 30px);
}

.page-about .about-open__aside {
  border-top: 1px solid var(--cs-gold-line);
  padding-top: 16px;
}

.page-about .about-symbols {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--cs-ink-08);
  border: var(--about-hair);
  border-radius: var(--cs-r-md);
  overflow: hidden;
}

.page-about .about-symbols__item {
  background: var(--cs-paper);
  padding: 14px 13px 16px;
  display: grid;
  gap: 6px;
  align-content: start;
}

.page-about .about-symbols__glyph {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  border: 1px solid var(--cs-gold);
  color: var(--cs-red-deep);
  background: radial-gradient(circle at 32% 28%, var(--cs-gold-pale), transparent 72%);
  font-family: var(--cs-font-display);
  font-size: 16px;
  line-height: 1;
}

.page-about .about-symbols__name {
  font-family: var(--cs-font-display);
  font-size: 18px;
  color: var(--cs-ink);
}

.page-about .about-symbols__desc {
  font-size: 13px;
  line-height: 1.62;
  color: var(--cs-ink-45);
}

.page-about .about-open__figure {
  margin: clamp(26px, 4vw, 46px) 0 0;
}

/* ---------- 双栏对照：喜气 / 公平 ---------- */
.page-about .about-pair,
.page-about .about-time,
.page-about .about-team,
.page-about .about-flow-section,
.page-about .about-honor,
.page-about .about-invite-section {
  margin-top: clamp(44px, 7vw, 86px);
}

.page-about .about-pair__head,
.page-about .about-time__head,
.page-about .about-team__head,
.page-about .about-flow__head,
.page-about .about-honor__head {
  max-width: 64ch;
}

.page-about .about-pair__cols {
  display: grid;
  gap: 16px;
  margin-top: clamp(22px, 3vw, 34px);
}

.page-about .about-pair__col {
  padding: clamp(20px, 3vw, 34px);
  border-radius: var(--cs-r-lg);
  border: 1px solid var(--cs-gold-line);
  background: var(--cs-paper);
  box-shadow: var(--cs-shadow-1);
}

.page-about .about-pair__col h3 {
  font-family: var(--cs-font-display);
  font-weight: 400;
  font-size: clamp(21px, 2.6vw, 28px);
  margin: 0 0 12px;
  color: var(--cs-red-deep);
}

.page-about .about-pair__col p {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--cs-ink-70);
}

.page-about .about-pair__col ul {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-about .about-pair__col li {
  position: relative;
  padding-left: 20px;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--cs-ink-70);
}

.page-about .about-pair__col li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 9px;
  height: 2px;
  background: var(--cs-gold);
}

.page-about .about-pair__col li strong {
  color: var(--cs-ink);
  font-weight: 600;
}

.page-about .about-pair__col--fair {
  background: linear-gradient(158deg, var(--cs-purple) 0%, #2a1637 100%);
  border-color: rgba(212, 166, 74, 0.42);
  box-shadow: var(--cs-shadow-2);
}

.page-about .about-pair__col--fair h3 {
  color: var(--cs-gold-pale);
}

.page-about .about-pair__col--fair p,
.page-about .about-pair__col--fair li {
  color: rgba(255, 248, 238, 0.78);
}

.page-about .about-pair__col--fair li::before {
  background: var(--cs-jade);
}

.page-about .about-pair__col--fair li strong {
  color: var(--cs-ivory);
}

/* ---------- 时间线 ---------- */
.page-about .about-time__list {
  list-style: none;
  margin: clamp(24px, 3.4vw, 38px) 0 0;
  padding: 0;
}

.page-about .about-time__list--tail {
  margin-top: clamp(20px, 3vw, 32px);
}

.page-about .about-time__item {
  position: relative;
  padding: 0 0 clamp(24px, 3.6vw, 40px) 30px;
  border-left: 1px solid var(--cs-gold-line);
}

.page-about .about-time__item:last-child {
  padding-bottom: 0;
  border-left-color: transparent;
}

.page-about .about-time__item::before {
  content: "";
  position: absolute;
  left: -5px;
  top: 7px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--cs-red);
  box-shadow: 0 0 0 3px var(--cs-ivory), 0 0 0 4px rgba(212, 166, 74, 0.55);
}

.page-about .about-time__list--tail .about-time__item:last-child::before {
  background: var(--cs-gold);
}

.page-about .about-time__stage {
  margin: 0;
  font-family: var(--cs-font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--cs-red-deep);
}

.page-about .about-time__title {
  font-family: var(--cs-font-display);
  font-weight: 400;
  font-size: clamp(20px, 2.5vw, 26px);
  margin: 6px 0 0;
  color: var(--cs-ink);
}

.page-about .about-time__text {
  margin: 8px 0 0;
  max-width: 64ch;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--cs-ink-70);
}

.page-about .about-time__figure {
  margin: clamp(24px, 3.4vw, 38px) 0 0;
}

/* ---------- 团队 ---------- */
.page-about .about-team__grid {
  display: grid;
  gap: clamp(18px, 3vw, 28px);
  margin-top: clamp(22px, 3vw, 34px);
  align-items: stretch;
}

.page-about .about-team__figure {
  margin: 0;
  height: 100%;
}

.page-about .about-team__cards {
  display: grid;
  gap: 14px;
}

.page-about .about-team__card {
  position: relative;
  border: 1px solid var(--cs-gold-line);
  border-radius: var(--cs-r-lg);
  background: var(--cs-paper-2);
  padding: clamp(18px, 2.6vw, 26px);
  display: grid;
  gap: 8px;
  align-content: start;
}

.page-about .about-team__card::after {
  content: "";
  position: absolute;
  right: 16px;
  top: 16px;
  width: 22px;
  height: 22px;
  border-top: 1px solid var(--cs-gold);
  border-right: 1px solid var(--cs-gold);
  border-radius: 0 4px 0 0;
  opacity: 0.7;
}

.page-about .about-team__num {
  font-family: var(--cs-font-mono);
  font-size: clamp(30px, 4vw, 42px);
  line-height: 1;
  color: var(--cs-red);
  letter-spacing: -0.02em;
}

.page-about .about-team__cardtitle {
  margin: 0;
  font-size: clamp(16px, 1.8vw, 18px);
  font-weight: 600;
  color: var(--cs-ink);
}

.page-about .about-team__card p:last-child {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.82;
  color: var(--cs-ink-70);
}

/* ---------- 审核流程 ---------- */
.page-about .about-flow-section {
  padding-top: clamp(6px, 1vw, 12px);
}

.page-about .about-flow {
  display: grid;
  gap: 10px;
  margin-top: clamp(22px, 3vw, 32px);
}

.page-about .about-flow__step {
  border: 1px solid var(--cs-ink-14);
  border-radius: var(--cs-r-md);
  background: var(--cs-paper);
  transition: border-color 220ms var(--cs-ease), box-shadow 220ms var(--cs-ease);
}

.page-about .about-flow__step[open] {
  border-color: var(--cs-gold);
  box-shadow: var(--cs-shadow-1);
}

.page-about .about-flow__step:hover {
  border-color: var(--cs-gold-line);
}

.page-about .about-flow__sum {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 14px 16px;
  cursor: pointer;
  list-style: none;
}

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

.page-about .about-flow__num {
  font-family: var(--cs-font-mono);
  font-size: 13px;
  color: var(--cs-gold);
  letter-spacing: 0.06em;
}

.page-about .about-flow__label {
  font-size: 16px;
  font-weight: 600;
  color: var(--cs-ink);
}

.page-about .about-flow__body {
  margin: 0;
  padding: 0 16px 16px;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--cs-ink-70);
}

.page-about .about-fair {
  margin-top: clamp(24px, 3.4vw, 36px);
  border-left: 3px solid var(--cs-green);
  background: var(--cs-jade);
  border-radius: 0 var(--cs-r-md) var(--cs-r-md) 0;
  padding: clamp(18px, 2.6vw, 26px);
}

.page-about .about-fair__title {
  margin: 0 0 12px;
  font-family: var(--cs-font-display);
  font-weight: 400;
  font-size: clamp(19px, 2.3vw, 24px);
  color: var(--cs-green);
}

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

.page-about .about-fair__list li {
  position: relative;
  padding-left: 18px;
  font-size: 14.5px;
  line-height: 1.8;
  color: rgba(27, 20, 22, 0.78);
}

.page-about .about-fair__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.66em;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  border: 1px solid var(--cs-green);
}

/* ---------- 徽章墙 ---------- */
.page-about .about-honors {
  list-style: none;
  margin: clamp(22px, 3vw, 34px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  gap: 1px;
  background: var(--cs-ink-08);
  border: var(--about-hair);
  border-radius: var(--cs-r-md);
  overflow: hidden;
}

.page-about .about-honors__item {
  background: var(--cs-paper);
  padding: clamp(18px, 2.6vw, 26px);
  display: grid;
  gap: 8px;
  align-content: start;
  transition: background 220ms var(--cs-ease);
}

.page-about .about-honors__item:hover {
  background: var(--cs-ivory);
}

.page-about .about-honors__num {
  font-family: var(--cs-font-mono);
  font-size: clamp(24px, 3vw, 30px);
  line-height: 1.05;
  color: var(--cs-purple);
  letter-spacing: -0.01em;
}

.page-about .about-honors__num span {
  font-size: 13px;
  margin-left: 4px;
  color: var(--cs-ink-45);
  letter-spacing: 0.04em;
}

.page-about .about-honors__label {
  margin: 0;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.6;
  color: var(--cs-ink);
}

.page-about .about-honors__note {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--cs-ink-45);
}

/* ---------- 邀请 ---------- */
.page-about .about-invite {
  position: relative;
  overflow: hidden;
  border-radius: var(--cs-r-lg);
  padding: clamp(24px, 4vw, 46px);
  background: linear-gradient(150deg, var(--cs-red-deep) 0%, var(--cs-purple) 58%, #241029 100%);
  border: 1px solid rgba(212, 166, 74, 0.4);
  box-shadow: var(--cs-shadow-2);
}

.page-about .about-invite::before {
  content: "";
  position: absolute;
  right: -70px;
  top: -80px;
  width: 260px;
  height: 260px;
  border-radius: 50%;
  border: 1px solid rgba(243, 223, 174, 0.28);
  background: radial-gradient(circle at 35% 35%, rgba(212, 166, 74, 0.28), transparent 68%);
  pointer-events: none;
}

.page-about .about-invite__eyebrow {
  color: var(--cs-gold-pale);
  margin: 0;
}

.page-about .about-invite__title {
  position: relative;
  margin: 12px 0 0;
  font-family: var(--cs-font-display);
  font-weight: 400;
  font-size: clamp(26px, 4.4vw, 44px);
  line-height: 1.2;
  color: var(--cs-ivory);
}

.page-about .about-invite__text {
  position: relative;
  margin: 14px 0 0;
  max-width: 56ch;
  font-size: 15.5px;
  line-height: 1.85;
  color: rgba(255, 248, 238, 0.78);
}

.page-about .about-invite__links {
  position: relative;
  display: grid;
  gap: 10px;
  margin-top: clamp(20px, 3vw, 30px);
}

.page-about .about-invite__link {
  display: grid;
  gap: 5px;
  padding: 16px 18px;
  border: 1px solid rgba(243, 223, 174, 0.32);
  border-radius: var(--cs-r-md);
  background: rgba(255, 255, 255, 0.05);
  text-decoration: none;
  transition: background 220ms var(--cs-ease), border-color 220ms var(--cs-ease), transform 220ms var(--cs-ease);
}

.page-about .about-invite__link:hover,
.page-about .about-invite__link:focus-visible {
  background: rgba(243, 223, 174, 0.14);
  border-color: var(--cs-gold);
  transform: translateY(-2px);
}

.page-about .about-invite__linktitle {
  font-family: var(--cs-font-display);
  font-size: 19px;
  color: var(--cs-gold-pale);
}

.page-about .about-invite__linkdesc {
  font-size: 13.5px;
  line-height: 1.7;
  color: rgba(255, 248, 238, 0.72);
}

/* ---------- 断点 ---------- */
@media (min-width: 760px) {
  .page-about .about-flow__body {
    padding-left: 44px;
  }

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

@media (min-width: 900px) {
  .page-about .about-open__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    gap: clamp(32px, 4.5vw, 64px);
  }

  .page-about .about-open__aside {
    margin-top: 12px;
  }

  .page-about .about-pair__cols {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: clamp(20px, 2.4vw, 28px);
  }

  .page-about .about-team__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: clamp(20px, 2.6vw, 30px);
  }

  .page-about .about-time__item {
    padding-left: 40px;
  }
}

@media (min-width: 1080px) {
  .page-about .about-invite__links {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-about .about-invite__text {
    font-size: 16.5px;
  }
}

@media (max-width: 400px) {
  .page-about .about-symbols {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-invite__link,
  .page-about .about-honors__item,
  .page-about .about-flow__step {
    transition: none;
  }

  .page-about .about-invite__link:hover,
  .page-about .about-invite__link:focus-visible {
    transform: none;
  }
}