/* ===== 品牌档案 /company/ ===== */
.page-about {
  --rail: 210px;
  background: var(--paper);
  color: var(--ink);
  padding: clamp(84px, 12vh, 138px) 0 clamp(64px, 8vw, 110px);
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  display: grid;
  gap: 20px;
  padding-bottom: clamp(28px, 4vw, 46px);
}

.page-about .about-hero__eyebrow {
  margin: 0;
  color: var(--amber);
}

.page-about .about-hero h1 {
  margin: 0;
  font-size: clamp(28px, 5.6vw, 48px);
  font-weight: 900;
  line-height: 1.16;
  letter-spacing: -0.02em;
  max-width: 20em;
}

.page-about .about-hero h1 b {
  font-weight: 900;
  color: var(--red);
  box-shadow: inset 0 -0.22em 0 rgba(216, 6, 33, 0.14);
}

.page-about .about-hero__lead {
  margin: 0;
  max-width: 40em;
  font-size: 16px;
  line-height: 1.8;
  color: var(--ink-2);
}

.page-about .hero-facts {
  list-style: none;
  margin: 6px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--frost);
  border: 1px solid var(--frost);
}

.page-about .hero-facts li {
  background: var(--white);
  padding: 15px 16px 17px;
}

.page-about .hero-facts .k {
  display: block;
  font-family: var(--mono);
  font-size: clamp(19px, 2.6vw, 25px);
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--red);
  line-height: 1.1;
}

.page-about .hero-facts .v {
  display: block;
  margin-top: 8px;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--slate);
}

/* ---------- 头图 ---------- */
.page-about .about-banner {
  margin: 0;
  border: 1px solid var(--frost);
  background: var(--white);
  box-shadow: var(--shadow-2);
}

.page-about .about-banner img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  aspect-ratio: 1600 / 560;
}

/* ---------- 时间轴骨架 ---------- */
.page-about .timeline {
  margin-top: clamp(46px, 6.5vw, 84px);
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0;
}

.page-about .tl-item {
  padding-bottom: clamp(46px, 6vw, 78px);
  scroll-margin-top: 112px;
}

.page-about .tl-item:last-of-type {
  padding-bottom: 0;
}

/* ---------- 左侧刻度栏 ---------- */
.page-about .rail {
  display: none;
}

/* ---------- 章节抬头 ---------- */
.page-about .sec-head {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--ink);
}

.page-about .sec-no {
  flex: none;
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--red);
}

.page-about .sec-title {
  margin: 0;
  font-size: clamp(21px, 3.4vw, 30px);
  font-weight: 900;
  line-height: 1.32;
  letter-spacing: -0.01em;
  max-width: 22em;
}

.page-about .sec-lead {
  margin: 20px 0 0;
  max-width: 34em;
  font-size: 17px;
  font-weight: 700;
  line-height: 1.66;
  color: var(--ink);
}

.page-about .sec-body {
  margin: 14px 0 0;
  max-width: 38em;
  font-size: 16px;
  line-height: 1.8;
  color: var(--ink-2);
}

.page-about .sec-body + .sec-body {
  margin-top: 12px;
}

/* ---------- 整理流程 ---------- */
.page-about .pipe-grid {
  margin-top: 28px;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 26px;
}

.page-about .steps {
  border-top: 1px solid var(--frost);
}

.page-about .step {
  border-bottom: 1px solid var(--frost);
}

.page-about .step__head {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 15px 2px;
  cursor: pointer;
  list-style: none;
}

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

.page-about .step__head::marker {
  content: "";
}

.page-about .step__no {
  flex: none;
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--white);
  background: var(--blue);
  padding: 3px 7px;
  border-radius: 2px;
}

.page-about .step__title {
  flex: 1 1 auto;
  font-size: 15.5px;
  font-weight: 700;
  color: var(--ink);
}

.page-about .step__meta {
  flex: none;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--slate);
  white-space: nowrap;
}

.page-about .step__head::after {
  content: "+";
  flex: none;
  font-family: var(--mono);
  font-size: 15px;
  line-height: 1;
  color: var(--slate);
}

.page-about .step[open] .step__head::after {
  content: "–";
  color: var(--red);
}

.page-about .step[open] .step__head {
  background: var(--paper-2);
}

.page-about .step__body {
  padding: 14px 2px 18px;
  font-size: 15px;
  line-height: 1.78;
  color: var(--ink-2);
  max-width: 36em;
  background: var(--paper-2);
}

.page-about .pipe-figure {
  margin: 0;
  border: 1px solid var(--frost);
  background: var(--white);
  padding: 10px 10px 0;
  box-shadow: var(--shadow-1);
}

.page-about .pipe-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  aspect-ratio: 9 / 7;
}

.page-about .pipe-figure .media__cap {
  display: block;
  padding: 10px 2px 12px;
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--slate);
}

/* ---------- 数据条 ---------- */
.page-about .bars {
  list-style: none;
  margin: 30px 0 0;
  padding: 0;
  display: grid;
  gap: 15px;
}

.page-about .bar {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 6px;
}

.page-about .bar__label {
  font-size: 14px;
  font-weight: 700;
  color: var(--ink);
}

.page-about .bar__track {
  display: block;
  height: 12px;
  background: var(--paper-2);
  border: 1px solid var(--frost);
  overflow: hidden;
}

.page-about .bar__fill {
  display: block;
  height: 100%;
  width: 20%;
  background: var(--blue);
  transition: width 0.5s var(--ease);
}

.page-about .bar__val {
  font-family: var(--mono);
  font-size: 13.5px;
  color: var(--ink);
  white-space: nowrap;
}

.page-about .bar:nth-child(1) .bar__fill { width: 100%; background: var(--blue); }
.page-about .bar:nth-child(2) .bar__fill { width: 46%; background: var(--green); }
.page-about .bar:nth-child(3) .bar__fill { width: 26%; background: var(--amber); }
.page-about .bar:nth-child(4) .bar__fill { width: 14%; background: var(--red); }

.page-about .bars__note {
  margin: 16px 0 0;
  max-width: 36em;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--slate);
}

/* ---------- 呼吸区 ---------- */
.page-about .breather {
  grid-column: 1 / -1;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: clamp(88px, 11vw, 150px);
  margin: clamp(8px, 2vw, 20px) 0 clamp(44px, 6vw, 74px);
  border-top: 1px solid var(--frost);
  border-bottom: 1px solid var(--frost);
  background: linear-gradient(96deg,
    rgba(27, 59, 111, 0.09) 0%,
    rgba(0, 168, 142, 0.09) 46%,
    rgba(216, 6, 33, 0.09) 100%);
}

.page-about .breather__leaf {
  width: 34px;
  height: 34px;
  background: var(--red);
  clip-path: polygon(50% 0%, 62% 30%, 96% 22%, 74% 48%, 100% 66%, 64% 68%, 56% 100%, 40% 70%, 6% 84%, 24% 52%, 2% 32%, 40% 34%);
  opacity: 0.72;
}

/* ---------- 团队 ---------- */
.page-about .crew {
  list-style: none;
  margin: 30px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}

.page-about .crew__item {
  background: var(--white);
  border: 1px solid var(--frost);
  border-top: 3px solid var(--blue);
  padding: 20px 18px 22px;
  box-shadow: var(--shadow-1);
}

.page-about .crew__item--edit { border-top-color: var(--green); }
.page-about .crew__item--ops { border-top-color: var(--amber); }

.page-about .crew__n {
  display: block;
  font-family: var(--mono);
  font-size: 34px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.04em;
  color: var(--blue);
}

.page-about .crew__item--edit .crew__n { color: var(--green-deep); }
.page-about .crew__item--ops .crew__n { color: var(--amber); }

.page-about .crew__role {
  display: block;
  margin-top: 12px;
  font-size: 16px;
  font-weight: 700;
  color: var(--ink);
}

.page-about .crew__desc {
  margin: 10px 0 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--slate);
}

.page-about .crew-figure {
  margin: 26px 0 0;
  border: 1px solid var(--frost);
  background: var(--paper-2);
}

.page-about .crew-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  aspect-ratio: 14 / 5;
}

.page-about .crew-figure .media__cap {
  display: block;
  padding: 10px 14px 12px;
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--slate);
}

/* ---------- 内容栏目 ---------- */
.page-about .col-grid {
  list-style: none;
  margin: 30px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}

.page-about .col-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 18px 18px 16px;
  border-left: 3px solid var(--blue);
}

.page-about .col-card:nth-child(2n) { border-left-color: var(--amber); }
.page-about .col-card:nth-child(3n) { border-left-color: var(--red); }

.page-about .col-card .tag {
  align-self: flex-start;
}

.page-about .col-card__title {
  margin: 0;
  font-size: 18px;
  font-weight: 900;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-about .col-card__desc {
  margin: 0;
  flex: 1 1 auto;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--ink-2);
}

.page-about .col-card__link {
  align-self: flex-start;
  margin-top: 4px;
  font-size: 13.5px;
  font-weight: 700;
  color: var(--blue);
  text-decoration: none;
  border-bottom: 2px solid var(--frost);
  padding-bottom: 2px;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-about .col-card__link:hover,
.page-about .col-card__link:focus-visible {
  color: var(--red);
  border-bottom-color: var(--red);
}

.page-about .col-card__note {
  margin-top: 4px;
  font-size: 13px;
  color: var(--slate);
}

/* ---------- 工作方式 ---------- */
.page-about .rules {
  list-style: none;
  margin: 30px 0 0;
  padding: 0;
  border-top: 1px solid var(--frost);
}

.page-about .rules li {
  display: grid;
  gap: 8px;
  padding: 18px 0;
  border-bottom: 1px solid var(--frost);
}

.page-about .rules__k {
  font-size: 14px;
  font-weight: 900;
  letter-spacing: 0.04em;
  color: var(--red);
}

.page-about .rules__v {
  margin: 0;
  max-width: 40em;
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--ink-2);
}

/* ---------- 收束 ---------- */
.page-about .cta-strip {
  margin-top: 38px;
  padding: 24px 22px;
  background: var(--blue-deep);
  color: var(--paper);
  border-radius: var(--radius);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.page-about .cta-strip__t {
  margin: 0;
  flex: 1 1 22em;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.65;
  color: var(--paper);
}

.page-about .cta-strip__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* ---------- 窄屏适配 ---------- */
@media (max-width: 560px) {
  .page-about .step__meta { display: none; }
  .page-about .step__title { font-size: 15px; }
  .page-about .sec-head { gap: 9px; }
}

@media (min-width: 640px) {
  .page-about .hero-facts {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-about .bar {
    grid-template-columns: 168px minmax(0, 1fr) auto;
    align-items: center;
    gap: 14px;
  }
}

@media (min-width: 720px) {
  .page-about .col-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (min-width: 900px) {
  .page-about .pipe-grid {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 0.6fr);
    gap: 40px;
    align-items: start;
  }
}

@media (min-width: 960px) {
  .page-about .rules li {
    grid-template-columns: 132px minmax(0, 1fr);
    gap: 22px;
    align-items: baseline;
  }
}

@media (min-width: 1040px) {
  .page-about .timeline {
    grid-template-columns: var(--rail) minmax(0, 1fr);
    column-gap: 60px;
  }

  .page-about .rail {
    display: block;
    grid-column: 1;
    grid-row: 1 / span 6;
  }

  .page-about .tl-item,
  .page-about .breather {
    grid-column: 2;
  }

  .page-about .rail__inner {
    position: sticky;
    top: 108px;
  }

  .page-about .rail__cap {
    margin: 0;
    font-family: var(--mono);
    font-size: 11px;
    letter-spacing: 0.2em;
    color: var(--slate);
  }

  .page-about .rail__track {
    position: relative;
    margin-top: 18px;
    padding-left: 20px;
    border-left: 2px solid var(--frost);
  }

  .page-about .rail__tick {
    position: relative;
    display: flex;
    align-items: baseline;
    gap: 9px;
    padding: 9px 0;
    text-decoration: none;
    color: var(--slate);
    transition: color 0.2s var(--ease);
  }

  .page-about .rail__tick::before {
    content: "";
    position: absolute;
    left: -26px;
    top: 16px;
    width: 11px;
    height: 2px;
    background: var(--frost);
    transition: background 0.2s var(--ease);
  }

  .page-about .rail__tick:hover,
  .page-about .rail__tick:focus-visible {
    color: var(--red);
  }

  .page-about .rail__tick:hover::before,
  .page-about .rail__tick:focus-visible::before {
    background: var(--red);
  }

  .page-about .rail__no {
    font-family: var(--mono);
    font-size: 11.5px;
    letter-spacing: 0.1em;
    color: var(--amber);
  }

  .page-about .rail__label {
    font-size: 13.5px;
    font-weight: 700;
  }

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