.page-about{
  --about-rail: 208px;
  --about-line: rgba(228,194,125,.16);
  --about-text: rgba(230,235,232,.82);
  --about-weak: rgba(221,230,230,.64);
  background:
    radial-gradient(90% 55% at 88% -8%, rgba(30,74,58,.85), rgba(11,26,21,0) 62%),
    var(--kp-ink);
  color: var(--kp-porcelain);
  font-family: var(--kp-font-body);
  overflow-x: clip;
  padding-bottom: clamp(48px, 8vw, 96px);
}

.page-about *,
.page-about *::before,
.page-about *::after{ box-sizing: border-box; }

.page-about .kp-mono{
  font-family: var(--kp-font-mono);
  font-variant-numeric: tabular-nums;
}

.page-about a{ color: var(--kp-gold-hi); }

/* 面包屑 */
.about-crumb{ padding-top: clamp(20px, 4vw, 36px); }

/* 首屏 */
.about-hero{ margin-top: clamp(16px, 3vw, 30px); }

.about-hero__grid{
  display: grid;
  gap: clamp(24px, 4vw, 44px);
  align-items: start;
}

.about-hero__eyebrow{
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin: 0 0 18px;
}

.about-plate{
  display: inline-block;
  padding: 5px 13px;
  border: 1px solid var(--kp-line-strong);
  border-radius: 2px;
  background: linear-gradient(180deg, rgba(169,121,46,.26), rgba(169,121,46,.06));
  color: var(--kp-gold-hi);
  font-size: .72rem;
  letter-spacing: .28em;
}

.about-hero__since{
  font-size: .76rem;
  letter-spacing: .16em;
  color: var(--about-weak);
}

.page-about h1{
  margin: 0 0 20px;
  font-family: var(--kp-font-display);
  font-weight: 800;
  font-size: clamp(1.8rem, 1.15rem + 2.9vw, 3.15rem);
  line-height: 1.26;
  letter-spacing: .01em;
  color: var(--kp-porcelain);
  text-wrap: balance;
}

.about-hero__text{
  margin: 0;
  max-width: 36em;
  line-height: 1.95;
  color: var(--about-text);
}

.about-hero__plate{
  position: relative;
  padding: clamp(18px, 2.6vw, 28px);
  border: 1px solid var(--kp-line-strong);
  border-radius: var(--kp-radius);
  background: linear-gradient(158deg, rgba(20,53,42,.94), rgba(9,22,18,.88));
  box-shadow: 0 30px 70px -52px #000;
}

.about-hero__plate::before{
  content: "";
  position: absolute;
  inset: 6px;
  border: 1px solid rgba(228,194,125,.1);
  border-radius: calc(var(--kp-radius) - 6px);
  pointer-events: none;
}

.about-hero__plateTitle{
  margin: 0 0 14px;
  font-size: .72rem;
  letter-spacing: .3em;
  color: var(--kp-amber);
}

.about-hero__rows{
  margin: 0;
  display: grid;
  gap: 10px;
}

.about-hero__row{
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 14px;
  padding-bottom: 10px;
  border-bottom: 1px dashed rgba(228,194,125,.18);
}

.about-hero__row:last-child{
  padding-bottom: 0;
  border-bottom: 0;
}

.about-hero__row dt{
  font-size: .86rem;
  letter-spacing: .04em;
  color: var(--about-weak);
}

.about-hero__row dd{
  margin: 0;
  font-size: .95rem;
  color: var(--kp-gold-hi);
}

/* 主体：左侧目录 + 右侧档案流 */
.about-body{
  display: grid;
  gap: clamp(24px, 4vw, 48px);
  margin-top: clamp(34px, 6vw, 70px);
}

.about-rail__title{
  display: none;
  margin: 0 0 12px;
  font-size: .72rem;
  letter-spacing: .3em;
  color: var(--kp-gold);
}

.about-rail__list{
  list-style: none;
  margin: 0;
  padding: 0 0 8px;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
}

.about-rail__list li{ flex: 0 0 auto; }

.about-rail__list a{
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 8px 13px;
  border: 1px solid transparent;
  border-radius: 999px;
  color: var(--about-weak);
  text-decoration: none;
  white-space: nowrap;
  font-size: .84rem;
  letter-spacing: .04em;
  transition: color .18s ease, background .18s ease, border-color .18s ease;
}

.about-rail__list a:hover{
  color: var(--kp-porcelain);
  background: rgba(46,102,83,.38);
  border-color: var(--kp-line);
}

.about-rail__list a:focus-visible{
  outline: 2px solid var(--kp-amber);
  outline-offset: 2px;
  color: var(--kp-porcelain);
}

.about-rail__num{
  font-size: .72rem;
  letter-spacing: .1em;
  color: var(--kp-gold);
}

/* 章节 */
.about-sec{
  padding: clamp(26px, 4vw, 44px) 0;
  border-top: 1px solid var(--about-line);
  scroll-margin-top: 104px;
}

.about-sec:first-child{ border-top: 0; padding-top: 0; }

.about-sec--panel{
  margin: clamp(20px, 3.4vw, 34px) 0;
  padding: clamp(22px, 3.4vw, 40px);
  border: 1px solid var(--kp-line);
  border-radius: var(--kp-radius);
  background: linear-gradient(150deg, rgba(20,53,42,.6), rgba(11,26,21,.24));
}

.about-sec__head{
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  column-gap: 14px;
  margin-bottom: 16px;
}

.about-sec__num{
  grid-column: 1;
  grid-row: 1 / span 2;
  align-self: start;
  font-size: clamp(2rem, 1.2rem + 3vw, 3rem);
  line-height: .92;
  letter-spacing: -.02em;
  color: rgba(228,194,125,.3);
}

.about-sec__eyebrow{
  grid-column: 2;
  margin: 0 0 6px;
  font-size: .72rem;
  letter-spacing: .3em;
  color: var(--kp-amber);
}

.about-sec__head h2{
  grid-column: 2;
  margin: 0;
  font-family: var(--kp-font-display);
  font-weight: 800;
  font-size: clamp(1.28rem, 1rem + 1.25vw, 1.9rem);
  line-height: 1.34;
  color: var(--kp-porcelain);
}

.about-sec__body p{
  margin: 0 0 14px;
  max-width: 44em;
  line-height: 1.92;
  color: var(--about-text);
}

.about-sec__body p:last-child{ margin-bottom: 0; }

.about-sec__body--wide{ margin: 0 0 18px; }

.about-sec__foot{
  margin: 14px 0 0;
  font-size: .84rem;
  line-height: 1.8;
  color: var(--about-weak);
}

.about-tags{
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 16px 0 0;
  padding: 0;
}

.about-tags .kp-tag{ font-size: .76rem; letter-spacing: .08em; }

/* 档案图 */
.about-figure{
  margin: clamp(6px, 2vw, 18px) 0 clamp(20px, 4vw, 40px);
}

.about-figure img,
.about-team__figure img,
.about-cover__map img{
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border: 1px solid var(--kp-line);
  border-radius: 14px;
  object-fit: cover;
}

.about-figure__cap,
.about-cover__map figcaption{
  margin-top: 10px;
  font-size: .82rem;
  line-height: 1.75;
  color: var(--about-weak);
}

/* 统计卡 */
.about-stats{
  display: grid;
  gap: 12px;
  margin: 20px 0 0;
}

.about-stat{
  position: relative;
  padding: 20px 18px 18px;
  border: 1px solid var(--kp-line);
  border-radius: 14px;
  background: linear-gradient(155deg, rgba(20,53,42,.86), rgba(11,26,21,.68));
  transition: transform .2s ease, border-color .2s ease;
}

.about-stat::after{
  content: "";
  position: absolute;
  left: 18px;
  right: 18px;
  top: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--kp-gold), rgba(228,194,125,0));
}

.about-stat:hover{
  transform: translateY(-3px);
  border-color: var(--kp-line-strong);
}

.about-stat__num{
  margin: 0;
  font-size: clamp(2rem, 1.4rem + 2vw, 2.8rem);
  line-height: 1.05;
  letter-spacing: -.01em;
  color: var(--kp-gold-hi);
}

.about-stat__label{
  margin: 8px 0 0;
  font-size: .9rem;
  font-weight: 500;
  color: var(--kp-porcelain);
}

.about-stat__note{
  margin: 10px 0 0;
  font-size: .8rem;
  line-height: 1.75;
  color: var(--about-weak);
}

/* 团队 */
.about-team{
  display: grid;
  gap: 20px;
  margin-top: 18px;
}

.about-team__figure{ margin: 0; }

.about-team__rows{
  list-style: none;
  margin: 0;
  padding: 0;
}

.about-team__row{
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 4px 14px;
  padding: 14px 0;
  border-bottom: 1px solid rgba(228,194,125,.14);
  transition: background .18s ease;
}

.about-team__row:first-child{ border-top: 1px solid rgba(228,194,125,.14); }

.about-team__row:hover{ background: rgba(46,102,83,.14); }

.about-team__role{
  font-size: .95rem;
  font-weight: 600;
  color: var(--kp-porcelain);
}

.about-team__count{
  font-size: 1.05rem;
  color: var(--kp-gold-hi);
}

.about-team__duty{
  grid-column: 1 / -1;
  font-size: .84rem;
  line-height: 1.78;
  color: var(--about-weak);
}

/* 时间轴 */
.about-tl{
  list-style: none;
  margin: 6px 0 0;
  padding: 0;
}

.about-tl__item{
  position: relative;
  padding: 0 0 26px 24px;
  border-left: 1px solid rgba(228,194,125,.22);
}

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

.about-tl__item::before{
  content: "";
  position: absolute;
  left: -5px;
  top: 9px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--kp-gold-hi);
  box-shadow: 0 0 0 3px rgba(169,121,46,.2);
  transition: box-shadow .2s ease;
}

.about-tl__item:hover::before,
.about-tl__item:focus::before{
  box-shadow: 0 0 0 5px rgba(169,121,46,.26);
}

.about-tl__item:focus-visible{
  outline: 2px solid var(--kp-amber);
  outline-offset: 4px;
  border-radius: 6px;
}

.about-tl__year{
  margin: 0 0 5px;
  font-size: 1.05rem;
  letter-spacing: .1em;
  color: var(--kp-gold-hi);
}

.about-tl__item h3{
  margin: 0 0 6px;
  font-family: var(--kp-font-display);
  font-weight: 700;
  font-size: 1.1rem;
  line-height: 1.4;
  color: var(--kp-porcelain);
}

.about-tl__desc{
  margin: 0;
  font-size: .9rem;
  line-height: 1.85;
  color: var(--about-text);
}

.about-tl__note{
  margin: 8px 0 0;
  font-size: .82rem;
  line-height: 1.75;
  color: var(--about-weak);
  border-left: 2px solid rgba(169,121,46,.5);
  padding-left: 10px;
}

/* 覆盖与运营 */
.about-cover{
  display: grid;
  gap: 22px;
  margin-top: 6px;
}

.about-cover__map{ margin: 0; }

.about-data{
  margin: 0;
  display: grid;
}

.about-data__row{
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 14px;
  padding: 13px 0;
  border-bottom: 1px solid rgba(228,194,125,.16);
}

.about-data__row:first-child{ border-top: 1px solid rgba(228,194,125,.16); }

.about-data__row dt{
  font-size: .88rem;
  color: var(--about-weak);
  letter-spacing: .02em;
}

.about-data__row dd{
  margin: 0;
  font-size: .95rem;
  color: var(--kp-gold-hi);
  text-align: right;
}

/* 收束 */
.about-sec--closing{
  border-top: 1px solid var(--kp-line-strong);
}

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

/* 平板与桌面 */
@media (min-width: 720px){
  .about-stats{ grid-template-columns: 1.15fr 1fr 1fr; }
}

@media (min-width: 820px){
  .about-team{ grid-template-columns: minmax(0,1fr) minmax(0,1.05fr); align-items: start; }
}

@media (min-width: 860px){
  .about-cover{ grid-template-columns: minmax(0,6fr) minmax(0,5fr); align-items: start; }
}

@media (min-width: 900px){
  .about-hero__grid{ grid-template-columns: minmax(0,5fr) minmax(0,7fr); }
}

@media (min-width: 1000px){
  .about-body{ grid-template-columns: var(--about-rail) minmax(0,1fr); align-items: start; }
  .about-rail{ position: sticky; top: 96px; }
  .about-rail__title{ display: block; }
  .about-rail__list{
    flex-direction: column;
    overflow: visible;
    gap: 2px;
    padding-bottom: 0;
  }
  .about-rail__list a{
    border-radius: 8px;
    padding: 8px 10px;
    white-space: normal;
  }
}

@media (hover: hover) and (min-width: 760px){
  .about-tl__note{
    max-height: 0;
    margin-top: 0;
    opacity: 0;
    overflow: hidden;
    transition: max-height .24s ease, opacity .24s ease, margin-top .24s ease;
  }
  .about-tl__item:hover .about-tl__note,
  .about-tl__item:focus .about-tl__note,
  .about-tl__item:focus-within .about-tl__note{
    max-height: 8em;
    margin-top: 8px;
    opacity: 1;
  }
}

@media (prefers-reduced-motion: reduce){
  .page-about .about-stat,
  .page-about .about-tl__note,
  .page-about .about-team__row,
  .page-about .about-rail__list a,
  .page-about .about-tl__item::before{
    transition: none !important;
  }
  .page-about .about-stat:hover{ transform: none; }
}
<<<PAGE_CSS_END>>>