.page-about {
  --about-gap: clamp(56px, 9vw, 124px);
  --about-panel: rgba(18, 38, 61, .72);
  display: block;
}

/* ---------- 首屏 ---------- */
.page-about .about-intro {
  padding-block: clamp(96px, 14vw, 150px) clamp(44px, 6vw, 76px);
}

.page-about .about-intro__eyebrow {
  margin-top: clamp(28px, 5vw, 52px);
}

.page-about .about-intro__title {
  margin: 16px 0 0;
  max-width: 22ch;
}

.page-about .about-intro__lede {
  margin-top: 22px;
  max-width: 60ch;
  color: var(--dim);
}

.page-about .about-facts {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: clamp(30px, 5vw, 52px) 0 0;
  padding: 0;
  list-style: none;
}

.page-about .about-fact {
  display: flex;
  align-items: baseline;
  gap: 9px;
  padding: 11px 20px;
  border-radius: var(--pill);
  background: var(--ink-2);
  border-left: 3px solid rgba(140, 151, 163, .5);
  transition: background var(--t) var(--ease), transform var(--t) var(--ease);
}

.page-about .about-fact:hover {
  background: var(--ink-3);
  transform: translateY(-2px);
}

.page-about .about-fact--signal {
  border-left-color: var(--signal);
}

.page-about .about-fact__num {
  font-family: var(--mono);
  font-size: 20px;
  font-weight: 600;
  line-height: 1;
  color: var(--fog);
}

.page-about .about-fact--signal .about-fact__num {
  color: var(--signal);
}

.page-about .about-fact__label {
  font-size: 14px;
  color: var(--steel);
}

/* ---------- 章节通用 ---------- */
.page-about .about-chapter {
  padding-block: var(--about-gap);
}

.page-about .about-chapter--tint {
  background: var(--ink-2);
}

.page-about .about-chapter--deep {
  background: var(--hull);
}

.page-about .about-chapter__num {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  letter-spacing: .18em;
  color: var(--steel);
}

.page-about .about-chapter__num::before {
  content: "";
  width: 10px;
  height: 10px;
  border-radius: 2px;
  background: var(--signal);
  flex: none;
}

.page-about .about-chapter__claim {
  margin: 16px 0 0;
  max-width: 20ch;
}

.page-about .about-chapter__lead {
  margin: 18px 0 0;
  max-width: 52ch;
  font-size: 17px;
  line-height: 1.85;
  color: var(--dim);
}

/* ---------- 品牌缘起 ---------- */
.page-about .about-origin__split {
  margin-top: clamp(32px, 5vw, 56px);
  align-items: start;
}

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

.page-about .about-origin__media .ayx-media__img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
}

/* ---------- 年表 ---------- */
.page-about .about-timeline {
  list-style: none;
  margin: clamp(40px, 7vw, 76px) 0 0;
  padding: 0 0 0 0;
  max-width: 780px;
}

.page-about .about-timeline__node {
  position: relative;
  padding: 16px 0 16px 32px;
  margin-left: 8px;
  border-left: 1.5px solid var(--line-strong);
  transition: border-color var(--t) var(--ease);
}

.page-about .about-timeline__node::before {
  content: "";
  position: absolute;
  left: -6px;
  top: 22px;
  width: 10px;
  height: 10px;
  border-radius: 2px;
  background: var(--pine);
  transition: background var(--t) var(--ease), transform var(--t) var(--ease);
}

.page-about .about-timeline__node--last::before {
  background: var(--signal);
}

.page-about .about-timeline__node:hover {
  border-left-color: var(--signal);
}

.page-about .about-timeline__node:hover::before {
  background: var(--signal);
  transform: scale(1.25);
}

.page-about .about-timeline__head {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 8px 16px;
}

.page-about .about-timeline__year {
  font-family: var(--mono);
  font-size: 15px;
  letter-spacing: .06em;
  color: var(--signal);
}

.page-about .about-timeline__gen {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--steel);
}

.page-about .about-timeline__name {
  font-size: 17px;
  font-weight: 800;
  letter-spacing: -.01em;
  color: var(--fog);
}

.page-about .about-timeline__pop {
  margin: 0;
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--steel);
  transition: max-height 240ms var(--ease), opacity 200ms var(--ease), margin-top 240ms var(--ease);
}

.page-about .about-timeline__node:hover .about-timeline__pop,
.page-about .about-timeline__node:focus-within .about-timeline__pop {
  max-height: 160px;
  margin-top: 8px;
  opacity: 1;
}

/* ---------- 六条资料线 ---------- */
.page-about .about-lines {
  list-style: none;
  margin: clamp(32px, 5vw, 56px) 0 0;
  padding: 0;
  display: grid;
  gap: 6px;
}

.page-about .about-line {
  position: relative;
  padding: 24px 22px 24px 26px;
  border-radius: var(--r-lg);
  transition: background var(--t) var(--ease), transform var(--t) var(--ease);
}

.page-about .about-line::after {
  content: "";
  position: absolute;
  left: 0;
  top: 26px;
  bottom: 26px;
  width: 3px;
  border-radius: var(--pill);
  background: transparent;
  transition: background var(--t) var(--ease);
}

.page-about .about-line:hover {
  background: rgba(10, 26, 47, .55);
  transform: translateY(-2px);
}

.page-about .about-line:hover::after {
  background: var(--signal);
}

.page-about .about-line__head {
  display: flex;
  align-items: center;
  gap: 12px;
}

.page-about .about-line__dot {
  width: 12px;
  height: 12px;
  border-radius: 3px;
  flex: none;
  background: var(--steel);
}

.page-about .about-line__dot--1 { background: var(--signal); }
.page-about .about-line__dot--2 { background: var(--pine-lt); }
.page-about .about-line__dot--3 { background: var(--blue); }
.page-about .about-line__dot--4 { background: var(--pine); }
.page-about .about-line__dot--5 { background: var(--signal-dark); }
.page-about .about-line__dot--6 { background: var(--steel); }

.page-about .about-line__name {
  margin: 0;
  font-size: 19px;
  font-weight: 800;
  letter-spacing: -.01em;
  color: var(--fog);
}

.page-about .about-line__desc {
  margin: 10px 0 0;
  max-width: 62ch;
  font-size: 16px;
  line-height: 1.85;
  color: var(--dim);
}

.page-about .about-line__who {
  margin: 10px 0 0;
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--steel);
}

.page-about .about-inline-cta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(30px, 5vw, 48px);
  font-size: 15px;
  color: var(--steel);
}

/* ---------- 服务范围 ---------- */
.page-about .about-coverage__grid {
  margin-top: clamp(34px, 5vw, 60px);
  display: grid;
  gap: clamp(30px, 5vw, 52px);
}

.page-about .about-coverage__figure {
  margin: 0;
  padding: 22px 18px 18px;
  border-radius: var(--r-lg);
  background:
    linear-gradient(rgba(242, 245, 247, .05) 1px, transparent 1px) 0 0 / 48px 48px,
    linear-gradient(90deg, rgba(242, 245, 247, .05) 1px, transparent 1px) 0 0 / 48px 48px,
    var(--ink);
  box-shadow: 0 22px 48px -28px rgba(0, 0, 0, .8);
}

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

.page-about .about-coverage__gridlines line {
  stroke: rgba(140, 151, 163, .14);
  stroke-width: 1;
}

.page-about .about-coverage__pt {
  fill: var(--pine);
  stroke: var(--pine-lt);
  stroke-width: 1.5;
  transform-box: fill-box;
  transform-origin: center;
  transition: transform var(--t) var(--ease), fill var(--t) var(--ease);
}

.page-about .about-coverage__pt:hover {
  transform: scale(1.75);
  fill: var(--pine-lt);
}

.page-about .about-coverage__keylink {
  cursor: pointer;
}

.page-about .about-coverage__pt--key {
  fill: var(--signal);
  stroke: var(--fog);
  stroke-width: 1.5;
}

.page-about .about-coverage__pt--key:hover {
  fill: var(--signal);
  transform: scale(1.35);
}

.page-about .about-coverage__caption {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
  margin-top: 14px;
}

.page-about .about-coverage__legend {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--steel);
}

.page-about .about-coverage__swatch {
  width: 10px;
  height: 10px;
  border-radius: 3px;
  background: var(--pine);
  border: 1.5px solid var(--pine-lt);
  flex: none;
}

.page-about .about-coverage__swatch--key {
  background: var(--signal);
  border-color: var(--fog);
}

.page-about .about-coverage__side {
  align-self: start;
}

.page-about .about-coverage__kicker {
  display: inline-block;
  margin: 0;
  padding: 6px 14px;
  border-radius: var(--pill);
  background: rgba(255, 106, 43, .12);
  border: 1px solid rgba(255, 106, 43, .34);
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--signal);
}

.page-about .about-coverage__body {
  margin: 18px 0 0;
  max-width: 58ch;
  font-size: 16px;
  line-height: 1.9;
  color: var(--dim);
}

.page-about .about-coverage__links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 26px 0 0;
}

.page-about .about-coverage__visual {
  margin: clamp(38px, 6vw, 68px) 0 0;
}

.page-about .about-coverage__visual .ayx-media__img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
}

/* ---------- 团队 ---------- */
.page-about .about-team__visual {
  margin: clamp(34px, 5vw, 56px) 0 0;
}

.page-about .about-team__visual .ayx-media__img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
}

.page-about .about-team {
  display: grid;
  gap: clamp(26px, 4vw, 38px);
  margin-top: clamp(36px, 6vw, 62px);
}

.page-about .about-team__row {
  display: grid;
  gap: 10px;
}

.page-about .about-team__top {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
}

.page-about .about-team__name {
  font-size: 18px;
  font-weight: 800;
  letter-spacing: -.01em;
  color: var(--fog);
}

.page-about .about-team__num {
  font-family: var(--mono);
  font-size: 21px;
  font-weight: 600;
  color: var(--signal);
}

.page-about .about-team__bar {
  height: 12px;
  border-radius: var(--pill);
  background: rgba(242, 245, 247, .08);
  overflow: hidden;
}

.page-about .about-team__fill {
  display: block;
  height: 100%;
  border-radius: var(--pill);
  background: linear-gradient(90deg, var(--pine), var(--pine-lt));
  transition: filter var(--t) var(--ease);
}

.page-about .about-team__fill--a { width: 48%; }
.page-about .about-team__fill--b { width: 21%; }
.page-about .about-team__fill--c { width: 31%; }

.page-about .about-team__row:hover .about-team__fill {
  filter: brightness(1.2);
}

.page-about .about-team__desc {
  margin: 0;
  max-width: 62ch;
  font-size: 16px;
  line-height: 1.85;
  color: var(--dim);
}

.page-about .about-team__total {
  margin: clamp(30px, 5vw, 46px) 0 0;
  padding-left: 18px;
  border-left: 3px solid var(--signal);
  max-width: 60ch;
  font-size: 16px;
  line-height: 1.85;
  color: var(--dim);
}

.page-about .about-team__total strong {
  font-family: var(--mono);
  font-size: 19px;
  color: var(--fog);
}

/* ---------- 黑龙江本地化 ---------- */
.page-about .about-local__panel {
  margin-top: clamp(32px, 5vw, 54px);
  display: grid;
  gap: clamp(28px, 4vw, 44px);
}

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

.page-about .about-local__item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 16px;
  padding: 22px 20px;
  border-radius: var(--r-lg);
  background: var(--about-panel);
  transition: background var(--t) var(--ease), transform var(--t) var(--ease);
}

.page-about .about-local__item:hover {
  background: var(--ink-3);
  transform: translateY(-2px);
}

.page-about .about-local__idx {
  font-size: 13px;
  letter-spacing: .14em;
  color: var(--signal);
  padding-top: 3px;
}

.page-about .about-local__title {
  margin: 0;
  font-size: 17px;
  font-weight: 800;
  letter-spacing: -.01em;
  color: var(--fog);
}

.page-about .about-local__text {
  margin: 8px 0 0;
  max-width: 58ch;
  font-size: 16px;
  line-height: 1.85;
  color: var(--dim);
}

.page-about .about-local__aside {
  align-self: start;
  padding: 26px 22px;
  border-radius: var(--r-lg);
  background: linear-gradient(160deg, rgba(46, 107, 90, .28), rgba(10, 26, 47, .2));
  border: 1px solid rgba(127, 179, 163, .3);
}

.page-about .about-local__note {
  margin: 0 0 20px;
  font-size: 16px;
  line-height: 1.85;
  color: var(--fog);
}

/* ---------- 三条做法 ---------- */
.page-about .about-principles {
  list-style: none;
  margin: clamp(32px, 5vw, 56px) 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
}

.page-about .about-principle {
  position: relative;
  padding: 26px 0 26px 44px;
  border-top: 1px solid var(--line);
  transition: border-color var(--t) var(--ease);
}

.page-about .about-principle:first-child {
  border-top: none;
  padding-top: 0;
}

.page-about .about-principle__num {
  position: absolute;
  left: 0;
  top: 30px;
  font-size: 15px;
  letter-spacing: .1em;
  color: var(--signal);
}

.page-about .about-principle:first-child .about-principle__num {
  top: 4px;
}

.page-about .about-principle__title {
  margin: 0;
  max-width: 34ch;
  font-size: 19px;
  font-weight: 800;
  letter-spacing: -.01em;
  color: var(--fog);
}

.page-about .about-principle__text {
  margin: 10px 0 0;
  max-width: 62ch;
  font-size: 16px;
  line-height: 1.9;
  color: var(--dim);
}

/* ---------- 收尾 ---------- */
.page-about .about-close {
  padding-block: var(--about-gap);
}

.page-about .about-close__inner {
  padding: clamp(30px, 5vw, 52px) clamp(22px, 4vw, 48px);
  border-radius: var(--r-lg);
  background: linear-gradient(150deg, var(--ink-2), var(--ink));
  border: 1px solid var(--line);
}

.page-about .about-close__title {
  margin: 0;
  max-width: 24ch;
}

.page-about .about-close__paths {
  list-style: none;
  margin: clamp(26px, 4vw, 42px) 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-about .about-path__link {
  display: grid;
  grid-template-columns: auto 1fr;
  grid-template-areas:
    "kicker label"
    "kicker hint";
  align-items: center;
  gap: 2px 16px;
  padding: 18px 20px;
  border-radius: var(--r-md);
  background: rgba(242, 245, 247, .04);
  text-decoration: none;
  transition: background var(--t) var(--ease), transform var(--t) var(--ease), box-shadow var(--t) var(--ease);
}

.page-about .about-path__link:hover {
  background: rgba(255, 106, 43, .1);
  transform: translateY(-2px);
  box-shadow: inset 3px 0 0 var(--signal);
}

.page-about .about-path__kicker {
  grid-area: kicker;
  font-size: 15px;
  color: var(--signal);
}

.page-about .about-path__label {
  grid-area: label;
  font-size: 17px;
  font-weight: 800;
  letter-spacing: -.01em;
  color: var(--fog);
}

.page-about .about-path__hint {
  grid-area: hint;
  font-family: var(--mono);
  font-size: 12.5px;
  letter-spacing: .06em;
  color: var(--steel);
}

/* ---------- 焦点可见 ---------- */
.page-about a:focus-visible,
.page-about .about-timeline__node:focus-within {
  outline: 2px solid var(--signal);
  outline-offset: 2px;
  border-radius: var(--r-sm);
}

/* ---------- 桌面布局 ---------- */
@media (min-width: 760px) {
  .page-about .about-coverage__grid {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-about .about-local__panel {
    grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
    align-items: start;
  }

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

  .page-about .about-path__link {
    grid-template-columns: auto 1fr;
    align-content: start;
    height: 100%;
    padding: 24px 22px;
  }

  .page-about .about-principle {
    padding-left: 76px;
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: 0;
  }
}

@media (min-width: 1040px) {
  .page-about .about-team {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 34px;
  }

  .page-about .about-team__row {
    grid-template-rows: auto auto 1fr;
  }
}

/* ---------- 无指针设备：内容常显 ---------- */
@media (hover: none) {
  .page-about .about-timeline__pop {
    max-height: 200px;
    margin-top: 8px;
    opacity: 1;
  }
}

/* ---------- 减少动效 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-about *,
  .page-about *::before,
  .page-about *::after {
    transition-duration: 0ms !important;
    animation-duration: 0ms !important;
  }
}