.page-about {
  --about-line: rgba(14, 59, 50, 0.16);
  --about-line-dark: rgba(201, 162, 39, 0.26);
  --about-cut: 24px;
  background: var(--porcelain);
  color: var(--black);
}

/* ---------- 首屏 ---------- */
.page-about .about-top {
  position: relative;
  overflow: hidden;
  padding: clamp(22px, 3.6vw, 40px) 0 clamp(46px, 7vw, 94px);
  background:
    radial-gradient(130% 96% at 92% -10%, rgba(28, 90, 74, 0.9) 0%, rgba(8, 39, 32, 0) 60%),
    linear-gradient(168deg, var(--ink-800) 0%, var(--ink-900) 100%);
  color: var(--porcelain);
}

.page-about .about-top::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 4px;
  background: linear-gradient(90deg,
    var(--gold) 0 32%,
    var(--cinnabar) 32% 40%,
    rgba(201, 162, 39, 0.24) 40% 100%);
}

.page-about .about-top::after {
  content: "";
  position: absolute;
  right: -80px;
  bottom: -120px;
  width: 340px;
  height: 340px;
  border: 1px solid rgba(201, 162, 39, 0.2);
  transform: rotate(45deg);
  pointer-events: none;
}

.page-about .about-top .blg-crumb__list {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 10px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-about .about-top .blg-crumb__item {
  font-size: 13px;
  color: var(--slate);
}

.page-about .about-top .blg-crumb__item + .blg-crumb__item::before {
  content: "/";
  margin-right: 10px;
  color: rgba(110, 122, 116, 0.6);
}

.page-about .about-top .blg-crumb__link {
  color: var(--gold-soft);
  text-decoration: none;
  transition: color var(--t) var(--ease);
}

.page-about .about-top .blg-crumb__link:hover {
  color: var(--porcelain);
}

.page-about .about-hero {
  display: grid;
  gap: clamp(26px, 4vw, 46px);
  align-items: end;
  margin-top: clamp(20px, 3vw, 38px);
}

.page-about .about-hero__copy .blg-eyebrow {
  margin: 0;
  font-size: 12.5px;
  letter-spacing: 0.24em;
  color: var(--gold);
}

.page-about .about-hero__title {
  margin: 14px 0 0;
  font-family: var(--serif);
  font-weight: 900;
  font-size: clamp(32px, 6vw, 66px);
  line-height: 1.14;
  letter-spacing: -0.01em;
  color: var(--porcelain);
}

.page-about .about-hl {
  display: block;
  color: var(--gold-soft);
}

.page-about .about-hero__copy .blg-lede {
  margin: 22px 0 0;
  max-width: 58ch;
  font-size: clamp(15px, 1.25vw, 17px);
  line-height: 1.88;
  color: rgba(244, 241, 232, 0.82);
}

.page-about .about-hero__copy .blg-btn-row {
  margin-top: 28px;
}

.page-about .about-hero__plate {
  position: relative;
  padding: clamp(22px, 2.6vw, 32px);
  background: rgba(8, 39, 32, 0.72);
  border: 1px solid rgba(201, 162, 39, 0.32);
  border-top: 3px solid var(--gold);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--about-cut)), calc(100% - var(--about-cut)) 100%, 0 100%);
}

.page-about .about-hero__plate-title {
  margin: 0 0 18px;
  font-size: 12.5px;
  letter-spacing: 0.22em;
  color: var(--gold);
}

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

.page-about .about-facts__row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 14px;
  padding: 10px 0;
  border-bottom: 1px solid rgba(28, 90, 74, 0.6);
}

.page-about .about-facts__row:first-child {
  padding-top: 0;
}

.page-about .about-facts dt {
  font-size: 13.5px;
  letter-spacing: 0.08em;
  color: rgba(244, 241, 232, 0.66);
}

.page-about .about-facts dd {
  margin: 0;
  font-family: var(--mono);
  font-size: clamp(20px, 2vw, 26px);
  font-weight: 700;
  line-height: 1;
  color: var(--gold-soft);
}

.page-about .about-hero__plate .blg-note {
  margin: 18px 0 0;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--slate);
}

/* ---------- 区块节奏 ---------- */
.page-about .about-sec {
  padding: clamp(52px, 7vw, 104px) 0;
}

.page-about .about-sec--light {
  background: var(--porcelain);
  color: var(--black);
}

.page-about .about-sec--bone {
  background: var(--bone);
  color: var(--black);
}

.page-about .about-sec--dark {
  background: var(--ink-800);
  color: var(--porcelain);
}

.page-about .about-sec--deep {
  background: var(--ink-900);
  color: var(--porcelain);
}

/* ---------- 章节头 ---------- */
.page-about .about-head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: center;
  gap: 0 18px;
  margin-bottom: clamp(26px, 3.6vw, 48px);
  padding-bottom: 18px;
  border-bottom: 1px solid var(--about-line);
}

.page-about .about-head__num {
  grid-row: 1 / span 2;
  font-family: var(--mono);
  font-size: clamp(38px, 6vw, 74px);
  font-weight: 700;
  line-height: 0.9;
  letter-spacing: -0.04em;
  color: var(--ink-600);
  transition: color var(--t) var(--ease);
}

.page-about .about-head__kicker {
  margin: 0 0 6px;
  font-size: 12.5px;
  letter-spacing: 0.22em;
  color: var(--slate);
}

.page-about .about-head__title {
  margin: 0;
  font-family: var(--serif);
  font-weight: 900;
  font-size: clamp(23px, 3.2vw, 40px);
  line-height: 1.24;
  color: var(--ink-800);
}

.page-about .about-sec--dark .about-head,
.page-about .about-sec--deep .about-head {
  border-bottom-color: var(--about-line-dark);
}

.page-about .about-sec--dark .about-head__num,
.page-about .about-sec--deep .about-head__num {
  color: var(--gold);
}

.page-about .about-sec--dark .about-head__title,
.page-about .about-sec--deep .about-head__title {
  color: var(--porcelain);
}

.page-about .about-head:hover .about-head__num {
  color: var(--cinnabar);
}

.page-about .about-sec--dark .about-head:hover .about-head__num,
.page-about .about-sec--deep .about-head:hover .about-head__num {
  color: var(--cinnabar);
}

/* ---------- 通用文本件 ---------- */
.page-about .about-lead-line {
  margin: 0 0 clamp(24px, 3vw, 36px);
  max-width: 66ch;
  font-size: clamp(15px, 1.35vw, 18px);
  line-height: 1.9;
}

.page-about .about-inline {
  color: var(--gold);
  text-decoration: none;
  border-bottom: 1px solid rgba(201, 162, 39, 0.55);
  transition: color var(--t) var(--ease), border-color var(--t) var(--ease);
}

.page-about .about-inline:hover {
  color: var(--cinnabar);
  border-bottom-color: var(--cinnabar);
}

.page-about .about-foot-note {
  margin: clamp(26px, 3.4vw, 40px) 0 0;
  max-width: 66ch;
  padding-left: 16px;
  border-left: 3px solid var(--gold);
  font-size: 14.5px;
  line-height: 1.85;
  color: rgba(244, 241, 232, 0.76);
}

/* ---------- 01 版本演进 ---------- */
.page-about .about-archive {
  display: grid;
  gap: clamp(26px, 3.6vw, 42px);
}

.page-about .about-ruler__cap {
  margin: 0 0 12px;
  font-size: 12px;
  letter-spacing: 0.22em;
  color: var(--slate);
}

.page-about .about-ruler__list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .about-ruler__item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border: 1px solid var(--about-line);
  background: rgba(14, 59, 50, 0.04);
  transition: border-color var(--t) var(--ease), background var(--t) var(--ease);
}

.page-about .about-ruler__item:hover {
  border-color: var(--gold);
  background: rgba(201, 162, 39, 0.12);
}

.page-about .about-ruler__ver {
  font-family: var(--mono);
  font-size: 14px;
  font-weight: 700;
  color: var(--ink-800);
}

.page-about .about-ruler__name {
  font-size: 12.5px;
  color: var(--slate);
}

.page-about .about-archive__lede {
  margin: 0 0 28px;
  max-width: 62ch;
  font-size: clamp(15.5px, 1.4vw, 18px);
  line-height: 1.9;
  color: #26332e;
}

.page-about .about-archive__figure {
  margin: 0 0 34px;
  max-width: 400px;
}

.page-about .about-archive__figure img {
  display: block;
  width: 100%;
  height: auto;
  border-left: 4px solid var(--gold);
  object-fit: cover;
}

.page-about .about-archive__figure .blg-note {
  display: block;
  margin: 12px 0 0;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--slate);
}

.page-about .about-ver {
  padding: 24px 0 30px;
  border-top: 1px solid var(--about-line);
}

.page-about .about-ver__tag {
  display: inline-block;
  margin-bottom: 14px;
  padding: 5px 12px;
  font-family: var(--mono);
  font-size: 12.5px;
  letter-spacing: 0.06em;
  color: var(--ink-800);
  background: rgba(201, 162, 39, 0.24);
  clip-path: polygon(0 0, 100% 0, calc(100% - 10px) 100%, 0 100%);
}

.page-about .about-ver__title {
  margin: 0 0 12px;
  font-family: var(--serif);
  font-weight: 900;
  font-size: clamp(19px, 2.1vw, 26px);
  line-height: 1.34;
  color: var(--ink-800);
}

.page-about .about-ver .blg-text {
  margin: 0;
  max-width: 66ch;
  font-size: 15.5px;
  line-height: 1.9;
  color: #26332e;
}

.page-about .about-seal {
  display: inline-grid;
  place-items: center;
  gap: 2px;
  width: 112px;
  height: 112px;
  margin-top: 26px;
  border: 2px solid var(--cinnabar);
  border-radius: 50%;
  background: rgba(178, 58, 46, 0.06);
  color: var(--cinnabar);
  font-family: var(--mono);
  font-size: 11.5px;
  line-height: 1.3;
  letter-spacing: 0.04em;
  text-align: center;
  transition: background var(--t) var(--ease), color var(--t) var(--ease);
}

.page-about .about-seal:hover {
  background: var(--cinnabar);
  color: var(--porcelain);
}

/* ---------- 02 供货能力 ---------- */
.page-about .about-bar {
  display: grid;
  gap: 1px;
  background: rgba(201, 162, 39, 0.32);
  border-top: 3px solid var(--gold);
  border-bottom: 3px solid var(--gold);
}

.page-about .about-bar__seg {
  padding: clamp(22px, 3vw, 36px);
  background: var(--ink-800);
  transition: background var(--t) var(--ease);
}

.page-about .about-bar__seg:hover {
  background: var(--ink-900);
}

.page-about .about-bar__num {
  display: block;
  font-family: var(--mono);
  font-size: clamp(40px, 5.6vw, 72px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--gold);
  transition: color var(--t) var(--ease);
}

.page-about .about-bar__seg:hover .about-bar__num {
  color: var(--gold-soft);
}

.page-about .about-bar__label {
  display: block;
  margin-top: 12px;
  font-size: 15px;
  letter-spacing: 0.1em;
  color: var(--porcelain);
}

.page-about .about-bar__desc {
  margin: 14px 0 0;
  font-size: 14px;
  line-height: 1.85;
  color: rgba(244, 241, 232, 0.68);
}

.page-about .about-bar__desc .about-inline {
  color: var(--gold-soft);
  border-bottom-color: rgba(232, 200, 106, 0.5);
}

.page-about .about-bar__desc .about-inline:hover {
  color: var(--porcelain);
  border-bottom-color: var(--porcelain);
}

.page-about .about-cats__cap {
  margin: clamp(30px, 4vw, 46px) 0 14px;
  font-size: 12px;
  letter-spacing: 0.22em;
  color: var(--slate);
}

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

.page-about .about-cats li {
  padding: 7px 14px;
  font-size: 13.5px;
  color: rgba(244, 241, 232, 0.86);
  border: 1px solid rgba(110, 122, 116, 0.5);
  clip-path: polygon(8px 0, 100% 0, 100% 100%, 0 100%, 0 8px);
  transition: border-color var(--t) var(--ease), color var(--t) var(--ease);
}

.page-about .about-cats li:hover {
  border-color: var(--gold);
  color: var(--gold-soft);
}

/* ---------- 03 招商政策 ---------- */
.page-about .blg-table-wrap {
  width: 100%;
  overflow-x: auto;
  border: 1px solid var(--about-line);
  background: #fff;
}

.page-about .blg-table {
  width: 100%;
  min-width: 560px;
  border-collapse: collapse;
  font-size: 15px;
}

.page-about .blg-table caption {
  padding: 16px 18px 12px;
  text-align: left;
  font-size: 12.5px;
  letter-spacing: 0.16em;
  color: var(--slate);
}

.page-about .blg-table th,
.page-about .blg-table td {
  padding: 15px 18px;
  text-align: left;
  border-bottom: 1px solid var(--about-line);
}

.page-about .blg-table thead th {
  background: var(--ink-800);
  color: var(--porcelain);
  font-size: 13.5px;
  font-weight: 600;
  letter-spacing: 0.08em;
  border-bottom: 0;
}

.page-about .blg-table tbody th {
  font-weight: 700;
  color: var(--ink-800);
}

.page-about .blg-table tbody tr {
  transition: background var(--t) var(--ease);
}

.page-about .blg-table tbody tr:hover {
  background: var(--bone);
}

.page-about .blg-table .about-price {
  font-family: var(--mono);
  font-size: 17px;
  font-weight: 700;
  color: var(--cinnabar);
}

.page-about .about-terms {
  display: grid;
  gap: 18px;
  margin-top: clamp(26px, 3.4vw, 40px);
}

.page-about .about-term {
  position: relative;
  padding: 22px 24px 22px 28px;
  background: rgba(228, 223, 210, 0.55);
  border-left: 3px solid var(--gold);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--about-cut)), calc(100% - var(--about-cut)) 100%, 0 100%);
  transition: background var(--t) var(--ease);
}

.page-about .about-term:hover {
  background: rgba(228, 223, 210, 0.9);
}

.page-about .about-term__title {
  margin: 0 0 10px;
  font-family: var(--serif);
  font-weight: 900;
  font-size: 19px;
  color: var(--ink-800);
}

.page-about .about-term__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: #26332e;
}

/* ---------- 04 区域网络 ---------- */
.page-about .about-network {
  display: grid;
  gap: clamp(24px, 3.4vw, 40px);
}

.page-about .about-network__fig {
  position: relative;
  margin: 0;
}

.page-about .about-network__fig img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 34px), calc(100% - 34px) 100%, 0 100%);
}

.page-about .about-network__fig .blg-note {
  display: block;
  margin: 12px 0 0;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--slate);
}

.page-about .about-network__lede {
  margin: 0 0 24px;
  max-width: 60ch;
  font-size: clamp(15px, 1.35vw, 17.5px);
  line-height: 1.9;
  color: #26332e;
}

.page-about .about-groups {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--about-line);
}

.page-about .about-groups__row {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 6px 18px;
  padding: 14px 4px;
  border-bottom: 1px solid var(--about-line);
  transition: background var(--t) var(--ease), padding-left var(--t) var(--ease);
}

.page-about .about-groups__row:hover {
  background: rgba(201, 162, 39, 0.12);
  padding-left: 12px;
}

.page-about .about-groups__city {
  font-family: var(--serif);
  font-weight: 900;
  font-size: 17px;
  color: var(--ink-800);
}

.page-about .about-groups__scope {
  font-size: 13.5px;
  letter-spacing: 0.04em;
  color: var(--slate);
}

/* ---------- 05 服务团队 ---------- */
.page-about .about-team {
  display: grid;
  gap: clamp(24px, 3.4vw, 40px);
}

.page-about .about-roster {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--about-line);
}

.page-about .about-roster__row {
  display: grid;
  grid-template-columns: 74px minmax(0, 1fr);
  gap: 16px;
  padding: 22px 4px;
  border-bottom: 1px solid var(--about-line);
  transition: background var(--t) var(--ease);
}

.page-about .about-roster__row:hover {
  background: rgba(201, 162, 39, 0.1);
}

.page-about .about-roster__count {
  font-family: var(--mono);
  font-size: 12.5px;
  letter-spacing: 0.04em;
  color: var(--slate);
}

.page-about .about-roster__count b {
  display: block;
  font-size: clamp(26px, 3vw, 36px);
  font-weight: 700;
  line-height: 1;
  color: var(--gold);
  transition: color var(--t) var(--ease);
}

.page-about .about-roster__row:hover .about-roster__count b {
  color: var(--cinnabar);
}

.page-about .about-roster__name {
  margin: 0 0 8px;
  font-family: var(--serif);
  font-weight: 900;
  font-size: 19px;
  color: var(--ink-800);
}

.page-about .about-roster__text {
  margin: 0;
  max-width: 58ch;
  font-size: 14.5px;
  line-height: 1.85;
  color: #26332e;
}

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

.page-about .about-team__fig img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border-bottom: 3px solid var(--gold);
}

.page-about .about-team__fig .blg-note {
  display: block;
  margin: 12px 0 0;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--slate);
}

/* ---------- 06 准入流程 ---------- */
.page-about .about-flow {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--about-line-dark);
}

.page-about .about-flow__step {
  border-bottom: 1px solid var(--about-line-dark);
}

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

.page-about .about-flow__sum {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 16px;
  padding: 22px 6px;
  cursor: pointer;
  list-style: none;
  transition: background var(--t) var(--ease), padding-left var(--t) var(--ease);
}

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

.page-about .about-flow__sum:hover {
  background: rgba(201, 162, 39, 0.1);
  padding-left: 16px;
}

.page-about .about-flow__idx {
  font-family: var(--mono);
  font-size: clamp(22px, 2.6vw, 32px);
  font-weight: 700;
  line-height: 1;
  color: var(--gold);
  transition: color var(--t) var(--ease);
}

.page-about .about-flow__det[open] .about-flow__idx,
.page-about .about-flow__sum:hover .about-flow__idx {
  color: var(--cinnabar);
}

.page-about .about-flow__name {
  font-family: var(--serif);
  font-weight: 900;
  font-size: clamp(18px, 2vw, 23px);
  color: var(--porcelain);
}

.page-about .about-flow__hint {
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--slate);
}

.page-about .about-flow__det[open] .about-flow__hint {
  color: var(--gold-soft);
}

.page-about .about-flow__det[open] .about-flow__hint::after {
  content: "收起";
}

.page-about .about-flow__det[open] .about-flow__hint {
  font-size: 0;
}

.page-about .about-flow__det[open] .about-flow__hint::after {
  font-size: 12px;
}

.page-about .about-flow__body {
  padding: 0 6px 26px 60px;
}

.page-about .about-flow__body p {
  margin: 0;
  max-width: 66ch;
  font-size: 14.5px;
  line-height: 1.9;
  color: rgba(244, 241, 232, 0.76);
}

.page-about .about-access-foot {
  display: grid;
  gap: 20px;
  margin-top: clamp(32px, 4vw, 52px);
  padding: clamp(24px, 3vw, 36px);
  border: 1px solid var(--about-line-dark);
  border-left: 4px solid var(--gold);
  background: rgba(14, 59, 50, 0.5);
}

.page-about .about-access-foot__title {
  margin: 0 0 10px;
  font-family: var(--serif);
  font-weight: 900;
  font-size: clamp(18px, 2vw, 23px);
  color: var(--gold-soft);
}

.page-about .about-access-foot p {
  margin: 0;
  max-width: 62ch;
  font-size: 14.5px;
  line-height: 1.88;
  color: rgba(244, 241, 232, 0.78);
}

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

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

  .page-about .about-access-foot {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 32px;
  }
}

@media (min-width: 900px) {
  .page-about .about-hero {
    grid-template-columns: minmax(0, 7.2fr) minmax(0, 4.8fr);
  }

  .page-about .about-archive {
    grid-template-columns: 172px minmax(0, 1fr);
    gap: clamp(30px, 4vw, 56px);
  }

  .page-about .about-ruler {
    position: sticky;
    top: 118px;
    align-self: start;
  }

  .page-about .about-ruler__list {
    display: block;
    position: relative;
    padding-left: 24px;
    gap: 0;
  }

  .page-about .about-ruler__list::before {
    content: "";
    position: absolute;
    left: 5px;
    top: 6px;
    bottom: 6px;
    width: 2px;
    background: linear-gradient(180deg, var(--gold) 0%, rgba(28, 90, 74, 0.28) 100%);
  }

  .page-about .about-ruler__item {
    display: block;
    position: relative;
    padding: 0 0 30px;
    border: 0;
    background: none;
  }

  .page-about .about-ruler__item::before {
    content: "";
    position: absolute;
    left: -24px;
    top: 5px;
    width: 12px;
    height: 12px;
    background: var(--gold);
    transform: rotate(45deg);
    transition: background var(--t) var(--ease), transform var(--t) var(--ease);
  }

  .page-about .about-ruler__item:hover::before {
    background: var(--cinnabar);
    transform: rotate(45deg) scale(1.18);
  }

  .page-about .about-ruler__item:hover {
    border: 0;
    background: none;
  }

  .page-about .about-ruler__ver {
    display: block;
    font-size: 15px;
    margin-bottom: 4px;
    transition: color var(--t) var(--ease);
  }

  .page-about .about-ruler__item:hover .about-ruler__ver {
    color: var(--cinnabar);
  }

  .page-about .about-ruler__name {
    display: block;
    font-size: 12.5px;
  }

  .page-about .about-network {
    grid-template-columns: minmax(0, 6.4fr) minmax(0, 5.6fr);
    align-items: start;
  }

  .page-about .about-team {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
  }

  .page-about .about-team__fig {
    position: sticky;
    top: 118px;
  }
}

@media (min-width: 1100px) {
  .page-about .about-archive__figure {
    float: right;
    width: 300px;
    margin: 6px 0 24px 34px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about * {
    transition-duration: 0.001ms !important;
  }
}