/* ==========================================
   page-about : 品牌档案
   ========================================== */

.page-about {
  --about-ink-soft: rgba(26, 26, 26, 0.7);
  --about-line: rgba(26, 26, 26, 0.13);
  background: var(--rice);
  color: var(--ink);
  font-family: var(--font-body);
  overflow-x: clip;
}

.page-about img {
  display: block;
  max-width: 100%;
  height: auto;
}

/* ---------- 首屏 ---------- */

.page-about .about-hero {
  position: relative;
  padding: calc(var(--header-h) + clamp(26px, 5vw, 68px)) 0 clamp(38px, 6vw, 84px);
  background:
    radial-gradient(120% 100% at 88% -12%, rgba(123, 44, 191, 0.3), transparent 62%),
    radial-gradient(95% 85% at 4% 112%, rgba(15, 107, 92, 0.38), transparent 60%),
    linear-gradient(158deg, var(--night) 0%, var(--night-2) 58%, #102c46 100%);
  color: var(--paper);
  overflow: hidden;
}

.page-about .about-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image: repeating-linear-gradient(114deg, rgba(212, 160, 23, 0.07) 0 2px, transparent 2px 16px);
}

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

.page-about .about-hero .crumbs {
  color: rgba(247, 243, 233, 0.66);
}

.page-about .about-hero .crumbs a {
  color: var(--gold-lite);
  text-decoration: none;
}

.page-about .about-hero .crumbs a:hover {
  text-decoration: underline;
}

.page-about .about-hero__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 4vw, 52px);
  align-items: end;
  margin-top: clamp(18px, 3vw, 38px);
}

.page-about .about-hero .eyebrow {
  margin: 0;
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: 0.24em;
  color: var(--gold);
}

.page-about .about-hero .display {
  margin: 14px 0 0;
  font-family: var(--font-title);
  font-size: clamp(34px, 6.6vw, 68px);
  line-height: 1.04;
  letter-spacing: 0.01em;
  color: var(--paper);
  text-wrap: balance;
}

.page-about .about-hero .lede {
  max-width: 52ch;
  margin: 20px 0 0;
  font-size: clamp(16px, 1.4vw, 18px);
  line-height: 1.9;
  color: rgba(247, 243, 233, 0.86);
}

.page-about .about-hero .btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.page-about .about-hero .btn--ghost {
  color: var(--gold-lite);
  border-color: rgba(242, 210, 122, 0.5);
  background: transparent;
}

.page-about .about-hero .btn--ghost:hover,
.page-about .about-hero .btn--ghost:focus-visible {
  background: rgba(242, 210, 122, 0.14);
  color: var(--gold-lite);
}

.page-about .about-hero__stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(12px, 2vw, 24px);
  padding-top: 22px;
  border-top: 1px solid var(--hairline-gold);
}

.page-about .about-hero .stat {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.page-about .about-hero .stat-num {
  font-family: var(--font-num);
  font-size: clamp(22px, 2.6vw, 34px);
  line-height: 1.1;
  color: var(--gold);
}

.page-about .about-hero .stat-label {
  font-size: 12px;
  letter-spacing: 0.06em;
  color: rgba(247, 243, 233, 0.68);
}

.page-about .about-hero__anno {
  position: absolute;
  right: clamp(6px, 2vw, 26px);
  bottom: clamp(24px, 5vw, 62px);
  margin: 0;
  writing-mode: vertical-rl;
  font-family: var(--font-anno);
  font-size: 12px;
  letter-spacing: 0.36em;
  color: rgba(242, 210, 122, 0.5);
  pointer-events: none;
}

/* ---------- 档案目录条 ---------- */

.page-about .about-index {
  background: var(--night);
  border-bottom: 1px solid rgba(212, 160, 23, 0.28);
}

.page-about .about-index__inner {
  display: flex;
  gap: 8px;
  padding-block: 12px;
  overflow-x: auto;
  scrollbar-width: none;
}

.page-about .about-index__inner::-webkit-scrollbar {
  display: none;
}

.page-about .about-index__link {
  flex: 0 0 auto;
  padding: 7px 15px;
  border: 1px solid rgba(212, 160, 23, 0.34);
  border-radius: 999px;
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: rgba(247, 243, 233, 0.74);
  text-decoration: none;
  transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.page-about .about-index__link:hover,
.page-about .about-index__link:focus-visible {
  background: var(--gold-lite);
  border-color: var(--gold-lite);
  color: var(--night);
}

/* ---------- 区块骨架 ---------- */

.page-about .about-section {
  padding: clamp(46px, 7vw, 104px) 0;
}

.page-about .about-section--paper {
  background: var(--paper);
}

.page-about .about-section--night {
  background: var(--night);
  color: var(--paper);
}

.page-about .about-section--red {
  background:
    radial-gradient(120% 120% at 8% -20%, rgba(212, 160, 23, 0.34), transparent 58%),
    linear-gradient(150deg, var(--red) 0%, var(--red-deep) 100%);
  color: var(--paper);
}

.page-about .about-head {
  max-width: 62ch;
  margin-bottom: clamp(28px, 4vw, 54px);
}

.page-about .about-head .eyebrow {
  margin: 0;
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--red);
}

.page-about .about-section--night .about-head .eyebrow,
.page-about .about-section--red .about-head .eyebrow {
  color: var(--gold);
}

.page-about .about-head .section-title {
  margin: 10px 0 0;
}

.page-about .about-section--night .about-head .section-title,
.page-about .about-section--red .about-head .section-title {
  color: var(--paper);
}

.page-about .about-head .section-note {
  margin: 14px 0 0;
  font-size: 16px;
  line-height: 1.9;
  color: var(--about-ink-soft);
}

.page-about .about-section--night .about-head .section-note {
  color: rgba(247, 243, 233, 0.78);
}

.page-about .about-section--red .about-head .section-note {
  color: rgba(255, 253, 247, 0.88);
}

/* ---------- 通用图卡 ---------- */

.page-about .about-figure {
  position: relative;
  margin: 0;
  padding: clamp(8px, 1.2vw, 14px);
  background: var(--paper);
  border: 1px solid var(--about-line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-paper);
}

.page-about .about-figure::before {
  content: "";
  position: absolute;
  top: 0;
  left: clamp(14px, 2vw, 26px);
  width: 42px;
  height: 4px;
  background: var(--gold);
}

.page-about .about-figure img {
  width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: 3px;
}

.page-about .about-figure__cap {
  margin: 10px 4px 2px;
  font-family: var(--font-anno);
  font-size: 13px;
  line-height: 1.7;
  color: var(--stone);
}

/* ---------- 01 起点 ---------- */

.page-about .about-origin {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 4vw, 56px);
  align-items: start;
}

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

.page-about .about-timeline::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: linear-gradient(180deg, var(--red) 0%, var(--gold) 48%, var(--jade) 100%);
  opacity: 0.55;
}

.page-about .about-timeline__step {
  position: relative;
  padding: 0 0 clamp(22px, 3vw, 36px) clamp(28px, 4vw, 44px);
}

.page-about .about-timeline__step:last-child {
  padding-bottom: 0;
}

.page-about .about-timeline__step::before {
  content: "";
  position: absolute;
  left: 0;
  top: 5px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--paper);
  border: 3px solid var(--red);
  box-shadow: 0 0 0 4px rgba(200, 16, 46, 0.1);
}

.page-about .about-timeline__year {
  display: inline-block;
  padding: 2px 8px;
  border: 1px solid rgba(200, 16, 46, 0.28);
  border-radius: 3px;
  font-family: var(--font-num);
  font-size: 13px;
  letter-spacing: 0.14em;
  color: var(--red);
}

.page-about .about-timeline__title {
  margin: 10px 0 0;
  font-family: var(--font-title);
  font-size: clamp(19px, 1.8vw, 23px);
  line-height: 1.35;
  color: var(--ink);
}

.page-about .about-timeline__step p {
  margin: 8px 0 0;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--about-ink-soft);
}

/* ---------- 02 团队 ---------- */

.page-about .about-team {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 3.5vw, 48px);
  align-items: start;
}

.page-about .about-team__cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(16px, 2vw, 22px);
}

.page-about .about-file {
  position: relative;
  padding: clamp(18px, 2.2vw, 26px);
  background: var(--rice);
  border: 1px solid var(--about-line);
  border-left: 4px solid var(--jade);
  border-radius: 0 var(--radius) var(--radius) 0;
  box-shadow: var(--shadow-paper);
}

.page-about .about-file:nth-child(2) {
  border-left-color: var(--gold);
}

.page-about .about-file:nth-child(3) {
  border-left-color: var(--red);
}

.page-about .about-file__head {
  display: flex;
  align-items: baseline;
  gap: 10px;
  flex-wrap: wrap;
}

.page-about .about-file__index {
  padding: 2px 7px;
  border-radius: 3px;
  background: var(--night);
  color: var(--paper);
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: 0.1em;
}

.page-about .about-file__head h3 {
  margin: 0;
  font-family: var(--font-title);
  font-size: clamp(18px, 1.6vw, 21px);
  line-height: 1.35;
  color: var(--ink);
}

.page-about .about-file p {
  margin: 12px 0 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--about-ink-soft);
}

.page-about .about-file .about-list {
  margin: 12px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 8px;
}

.page-about .about-file .about-list li {
  position: relative;
  padding-left: 16px;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--about-ink-soft);
}

.page-about .about-file .about-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 7px;
  height: 7px;
  background: var(--gold);
  transform: rotate(45deg);
}

.page-about .about-team__foot {
  margin: clamp(26px, 3vw, 38px) 0 0;
  padding-top: 18px;
  border-top: 1px dashed var(--about-line);
  font-size: 15px;
  line-height: 1.85;
  color: var(--about-ink-soft);
}

.page-about .about-team__foot a {
  color: var(--red);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 03 安全与资质 ---------- */

.page-about .about-security {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 3.5vw, 52px);
  align-items: center;
}

.page-about .about-security__copy .eyebrow {
  margin: 0;
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: 0.22em;
  color: var(--gold);
}

.page-about .about-security__copy h2 {
  margin: 12px 0 0;
  font-family: var(--font-title);
  font-size: clamp(26px, 3.4vw, 40px);
  line-height: 1.2;
  color: var(--paper);
}

.page-about .about-security__copy > p {
  margin: 16px 0 0;
  font-size: 16px;
  line-height: 1.9;
  color: rgba(247, 243, 233, 0.8);
}

.page-about .about-certs {
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
}

.page-about .about-certs li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 14px;
  align-items: start;
  padding: 16px 18px;
  border: 1px solid var(--hairline-gold);
  border-radius: var(--radius);
  background: rgba(22, 58, 95, 0.42);
}

.page-about .about-certs__mark {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border: 1px solid var(--gold);
  border-radius: 50%;
  color: var(--gold);
  font-family: var(--font-title);
  font-size: 15px;
  line-height: 1;
}

.page-about .about-certs strong {
  display: block;
  font-family: var(--font-num);
  font-size: 14px;
  letter-spacing: 0.06em;
  color: var(--gold);
}

.page-about .about-certs span {
  display: block;
  margin-top: 6px;
  font-size: 14.5px;
  line-height: 1.75;
  color: rgba(247, 243, 233, 0.78);
}

.page-about .about-security__figure {
  max-width: 460px;
  margin-inline: auto;
}

.page-about .about-section--night .about-figure {
  background: var(--night-2);
  border-color: var(--hairline-gold);
}

.page-about .about-section--night .about-figure__cap {
  color: rgba(247, 243, 233, 0.66);
}

/* ---------- 04 线下伙伴 ---------- */

.page-about .about-partners {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(22px, 3vw, 40px);
}

.page-about .about-band {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 16px;
  padding: clamp(20px, 2.6vw, 30px) clamp(20px, 3vw, 36px);
  border: 1px solid rgba(212, 160, 23, 0.32);
  border-radius: var(--radius);
  background: linear-gradient(120deg, var(--night) 0%, var(--night-2) 100%);
  color: var(--paper);
}

.page-about .about-band__num {
  font-family: var(--font-num);
  font-size: clamp(40px, 6vw, 68px);
  line-height: 1;
  color: var(--gold);
}

.page-about .about-band__label {
  font-family: var(--font-anno);
  font-size: clamp(14px, 1.4vw, 17px);
  letter-spacing: 0.1em;
  color: rgba(247, 243, 233, 0.86);
}

.page-about .about-partners__body > p {
  margin: 0 0 16px;
  font-size: 15.5px;
  line-height: 1.9;
  color: var(--about-ink-soft);
}

.page-about .about-partners__body a:not(.btn) {
  color: var(--red);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-about .about-milestone {
  margin: 22px 0;
  padding: clamp(20px, 2.6vw, 28px);
  border: 1px solid var(--about-line);
  border-left: 5px solid var(--gold);
  border-radius: 0 var(--radius) var(--radius) 0;
  background: var(--paper);
  box-shadow: var(--shadow-paper);
}

.page-about .about-milestone__kicker {
  display: inline-block;
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--jade);
}

.page-about .about-milestone h3 {
  margin: 10px 0 0;
  font-family: var(--font-title);
  font-size: clamp(20px, 2.2vw, 26px);
  color: var(--ink);
}

.page-about .about-milestone p {
  margin: 10px 0 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--about-ink-soft);
}

.page-about .about-milestone__nums {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px dashed var(--about-line);
}

.page-about .about-milestone__nums span {
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
  font-size: 14px;
  color: var(--stone);
}

.page-about .about-milestone__nums b {
  font-family: var(--font-num);
  font-size: 24px;
  font-weight: 400;
  color: var(--red);
}

/* ---------- 05 荣誉 ---------- */

.page-about .about-honors {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 3vw, 34px);
}

.page-about .about-seal {
  position: relative;
  padding: clamp(22px, 3vw, 32px);
  border: 1px solid rgba(255, 253, 247, 0.42);
  border-radius: var(--radius);
  background: rgba(255, 253, 247, 0.1);
  outline-offset: 4px;
  transition: transform 0.3s ease, background-color 0.3s ease, border-color 0.3s ease;
}

.page-about .about-seal:hover,
.page-about .about-seal:focus-visible {
  transform: translateY(-4px);
  background: rgba(255, 253, 247, 0.17);
  border-color: var(--gold-lite);
}

.page-about .about-seal__year {
  display: inline-block;
  padding: 4px 14px;
  border: 1px solid rgba(242, 210, 122, 0.5);
  border-radius: 999px;
  font-family: var(--font-num);
  font-size: 13px;
  letter-spacing: 0.18em;
  color: var(--gold-lite);
}

.page-about .about-seal__title {
  margin: 16px 0 0;
  font-family: var(--font-title);
  font-size: clamp(20px, 2.2vw, 27px);
  line-height: 1.3;
  color: var(--paper);
}

.page-about .about-seal__note {
  margin: 12px 0 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: rgba(255, 253, 247, 0.84);
}

/* ---------- 06 服务地区 ---------- */

.page-about .about-service {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(22px, 3vw, 40px);
  align-items: start;
}

.page-about .about-service__card {
  padding: clamp(22px, 3vw, 34px);
  background: var(--paper);
  border: 1px solid var(--about-line);
  border-top: 4px solid var(--red);
  border-radius: 0 0 var(--radius) var(--radius);
  box-shadow: var(--shadow-paper);
}

.page-about .about-service__card h3 {
  margin: 0 0 18px;
  font-family: var(--font-title);
  font-size: clamp(19px, 2vw, 24px);
  color: var(--ink);
}

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

.page-about .about-service .contact-item {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 6px 14px;
  align-items: center;
  padding-bottom: 14px;
  border-bottom: 1px dashed var(--about-line);
}

.page-about .about-service .contact-item:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-about .about-service .contact-key {
  grid-column: 1 / -1;
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--stone);
}

.page-about .about-service .contact-val {
  font-size: 15.5px;
  line-height: 1.7;
  color: var(--ink);
  word-break: break-word;
}

.page-about .about-service__note {
  margin: 20px 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--about-line);
  font-size: 14px;
  line-height: 1.8;
  color: var(--about-ink-soft);
}

.page-about .about-service__side {
  display: grid;
  gap: clamp(16px, 2vw, 22px);
}

.page-about .about-service__box {
  padding: clamp(18px, 2.4vw, 26px);
  border: 1px solid var(--about-line);
  border-radius: var(--radius);
  background: var(--rice);
}

.page-about .about-service__box h4 {
  margin: 0 0 10px;
  font-family: var(--font-title);
  font-size: 17px;
  color: var(--ink);
}

.page-about .about-service__box p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--about-ink-soft);
}

.page-about .about-service__box p + p {
  margin-top: 6px;
}

.page-about .about-service__icp {
  font-family: var(--font-num);
  font-size: 15px !important;
  letter-spacing: 0.04em;
  color: var(--red) !important;
}

/* ---------- 响应式 ---------- */

@media (max-width: 899px) {
  .page-about .about-hero__anno {
    display: none;
  }
}

@media (min-width: 860px) {
  .page-about .about-hero__inner {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 0.9fr);
  }

  .page-about .about-team {
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  }

  .page-about .about-security {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  }

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

  .page-about .about-service {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  }
}

@media (min-width: 940px) {
  .page-about .about-origin {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
  }

  .page-about .about-origin__media {
    position: sticky;
    top: calc(var(--header-h) + 26px);
  }

  .page-about .about-seal__note {
    max-height: 0;
    margin-top: 0;
    opacity: 0;
    overflow: hidden;
    transition: max-height 0.4s ease, opacity 0.35s ease, margin-top 0.35s ease;
  }

  .page-about .about-seal:hover .about-seal__note,
  .page-about .about-seal:focus-visible .about-seal__note,
  .page-about .about-seal:focus-within .about-seal__note {
    max-height: 220px;
    margin-top: 12px;
    opacity: 1;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-index__link,
  .page-about .about-seal,
  .page-about .about-seal__note {
    transition: none;
  }

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