.page-about {
  --about-gap: clamp(20px, 3.2vw, 44px);
  --about-hair: rgba(22, 25, 28, 0.16);
  --about-hair-light: rgba(245, 242, 234, 0.26);
  --about-on-dark: rgba(245, 242, 234, 0.86);
  display: block;
  background: var(--paper);
  color: var(--ink);
}

.page-about .band--ink { background: var(--ice-deep); color: var(--paper); }
.page-about .band--mid { background: var(--ice-mid); color: var(--paper); }
.page-about .band--mint { background: var(--trust); color: var(--paper); }
.page-about .band--frost { background: var(--frost); color: var(--ink); }
.page-about .band--paper { background: var(--paper); color: var(--ink); }

/* ---------- 面包屑 ---------- */
.page-about .breadcrumb {
  background: var(--paper);
  border-bottom: 2px solid var(--ink);
  padding: 14px 0;
}
.page-about .breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: 13px;
  letter-spacing: 0.04em;
}
.page-about .breadcrumb-link {
  color: var(--ice-mid);
  text-decoration: none;
}
.page-about .breadcrumb-link:hover { color: var(--orange); }
.page-about .breadcrumb-item + .breadcrumb-item::before {
  content: "/";
  margin-right: 8px;
  color: var(--work-gray);
}
.page-about .breadcrumb-current { color: var(--ink-soft); }

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  position: relative;
  padding: clamp(32px, 5.5vw, 76px) 0 clamp(40px, 6vw, 92px);
  border-bottom: 3px solid var(--orange);
  overflow: hidden;
}
.page-about .about-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 8px;
  background: repeating-linear-gradient(90deg, var(--orange-hi) 0 14px, transparent 14px 28px);
  opacity: 0.55;
}
.page-about .about-hero-grid {
  display: grid;
  gap: clamp(26px, 4vw, 52px);
  grid-template-columns: 1fr;
}
.page-about .about-hero-main { min-width: 0; }
.page-about .about-hero .eyebrow {
  display: inline-block;
  font-size: 12px;
  letter-spacing: 0.26em;
  text-transform: uppercase;
  color: var(--orange-hi);
  border: 2px solid var(--orange);
  padding: 5px 11px;
  margin: 0;
}
.page-about .about-hero-title {
  font-family: var(--font-display);
  font-weight: 200;
  font-size: clamp(42px, 10vw, 108px);
  line-height: 0.96;
  letter-spacing: -0.035em;
  margin: 18px 0 0;
  color: var(--paper);
}
.page-about .about-hero-lede {
  max-width: 46ch;
  margin: 22px 0 0;
  font-size: clamp(15px, 1.7vw, 18px);
  line-height: 1.8;
  color: var(--about-on-dark);
}
.page-about .about-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 30px;
}
.page-about .about-hero-side {
  min-width: 0;
  padding-left: 0;
  border-left: 0;
}
.page-about .about-hero-stamp {
  width: 94px;
  height: 94px;
  border: 2px solid var(--orange);
  border-radius: 50%;
  display: grid;
  place-content: center;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.45;
  letter-spacing: 0.18em;
  color: var(--orange-hi);
  transform: rotate(-9deg);
  margin-bottom: 24px;
}
.page-about .about-fact-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}
.page-about .about-fact {
  border-top: 2px solid var(--about-hair-light);
  padding-top: 10px;
}
.page-about .about-fact-value {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(18px, 2vw, 22px);
  line-height: 1.2;
  color: var(--orange-hi);
  letter-spacing: -0.01em;
}
.page-about .about-fact-label {
  display: block;
  margin-top: 5px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--about-on-dark);
}

/* ---------- 通用版块 ---------- */
.page-about .about-sec {
  padding: clamp(42px, 6vw, 92px) 0;
}
.page-about .about-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
}
.page-about .about-rail { min-width: 0; }
.page-about .about-body { min-width: 0; }

.page-about .section-index {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--orange);
  margin-bottom: 12px;
}
.page-about .band--paper .section-index { color: var(--ice-mid); }
.page-about .about-rail-note {
  display: inline-block;
  max-width: 210px;
  margin: 0;
  font-size: 12px;
  line-height: 1.55;
  letter-spacing: 0.05em;
  color: var(--ink);
  background: var(--orange-hi);
  border: 2px solid var(--ink);
  padding: 8px 12px;
  box-shadow: 4px 4px 0 rgba(22, 25, 28, 0.85);
  transform: rotate(-2deg);
}
.page-about .about-rail-note--seal {
  background: var(--seal);
  color: var(--paper);
  border-color: var(--paper);
  box-shadow: 4px 4px 0 rgba(196, 52, 42, 0.5);
}

.page-about .section-title {
  font-family: var(--font-display);
  font-weight: 200;
  font-size: clamp(28px, 4.8vw, 54px);
  line-height: 1.06;
  letter-spacing: -0.028em;
  margin: 0 0 18px;
  color: inherit;
}
.page-about .about-p {
  max-width: 62ch;
  margin: 0 0 20px;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.85;
  color: var(--ink-soft);
}
.page-about .band--ink .about-p,
.page-about .band--mint .about-p,
.page-about .band--mid .about-p {
  color: var(--about-on-dark);
}
.page-about .about-p--after { margin-top: 26px; }
.page-about .about-link {
  color: var(--orange);
  text-decoration: none;
  border-bottom: 2px solid var(--orange-hi);
  padding-bottom: 1px;
}
.page-about .about-link:hover { color: var(--orange-hi); }
.page-about .band--ink .about-link,
.page-about .band--mint .about-link,
.page-about .band--mid .about-link { color: var(--orange-hi); }

.page-about .about-figure {
  margin: 30px 0 0;
}
.page-about .about-figure--narrow { max-width: 640px; }

/* ---------- 01 接单 ---------- */
.page-about .desk-pair {
  display: grid;
  gap: 18px;
  grid-template-columns: 1fr;
  margin-top: 26px;
}
.page-about .desk-card {
  border: 2px solid var(--ink);
  background: #fff;
  padding: 22px 20px 24px;
  box-shadow: var(--shadow-hard);
  position: relative;
}
.page-about .desk-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 6px;
}
.page-about .desk-card--day::before { background: var(--ice-mid); }
.page-about .desk-card--night::before { background: var(--orange); }
.page-about .desk-card-title {
  margin: 6px 0 0;
  font-size: clamp(17px, 2vw, 21px);
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--ink);
}
.page-about .desk-card-time {
  display: block;
  margin: 8px 0 0;
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--trust);
}
.page-about .desk-card-text {
  margin: 14px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-soft);
}

/* ---------- 02 规矩 ---------- */
.page-about .rule-list {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  border-top: 2px solid var(--about-hair-light);
}
.page-about .rule {
  display: grid;
  grid-template-columns: 1fr;
  gap: 6px;
  padding: 24px 0;
  border-bottom: 2px solid var(--about-hair-light);
}
.page-about .rule-num {
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: 0.12em;
  color: var(--orange-hi);
}
.page-about .rule-title {
  margin: 0;
  font-size: clamp(17px, 2vw, 21px);
  font-weight: 600;
  line-height: 1.35;
  color: var(--paper);
}
.page-about .rule-p {
  margin: 10px 0 0;
  max-width: 58ch;
  font-size: 15px;
  line-height: 1.82;
  color: var(--about-on-dark);
}

/* ---------- 03 时间线 ---------- */
.page-about .timeline {
  position: relative;
  list-style: none;
  margin: 30px 0 0;
  padding: 0 0 0 34px;
}
.page-about .timeline::before {
  content: "";
  position: absolute;
  left: 9px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: repeating-linear-gradient(180deg, var(--ice-mid) 0 8px, transparent 8px 15px);
}
.page-about .tl-item {
  position: relative;
  padding-bottom: 34px;
}
.page-about .tl-item:last-child { padding-bottom: 0; }
.page-about .tl-item::before {
  content: "";
  position: absolute;
  left: -30px;
  top: 6px;
  width: 12px;
  height: 12px;
  background: var(--orange);
  border: 2px solid var(--ink);
}
.page-about .tl-year {
  display: block;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.14em;
  color: var(--ice-deep);
  margin-bottom: 6px;
}
.page-about .tl-title {
  margin: 0;
  font-size: clamp(17px, 2vw, 21px);
  font-weight: 600;
  line-height: 1.35;
  color: var(--ink);
}
.page-about .tl-p {
  margin: 10px 0 0;
  max-width: 58ch;
  font-size: 15px;
  line-height: 1.82;
  color: var(--ink-soft);
}

/* ---------- 04 技师考核 ---------- */
.page-about .gate-list {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  gap: 18px;
  grid-template-columns: 1fr;
}
.page-about .gate {
  border: 2px solid var(--ink);
  background: #fff;
  padding: 20px 20px 22px;
  border-top: 6px solid var(--trust);
}
.page-about .gate-num {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--ice-mid);
  margin-bottom: 8px;
}
.page-about .gate-title {
  margin: 0;
  font-size: clamp(17px, 2vw, 20px);
  font-weight: 600;
  color: var(--ink);
}
.page-about .gate-p {
  margin: 10px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-soft);
}

/* ---------- 05 投诉流程 ---------- */
.page-about .flow {
  list-style: none;
  margin: 28px 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
  grid-template-columns: 1fr;
}
.page-about .flow-step {
  position: relative;
  border: 2px solid var(--about-hair-light);
  background: rgba(245, 242, 234, 0.05);
  padding: 20px 18px 22px;
  transition: background 240ms ease, transform 240ms ease;
}
.page-about .flow-step:hover,
.page-about .flow-step:focus-within {
  background: rgba(242, 107, 29, 0.14);
  transform: translateY(-3px);
}
.page-about .flow-step--seal {
  border-color: var(--seal);
  background: rgba(196, 52, 42, 0.14);
}
.page-about .flow-num {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--orange-hi);
  margin-bottom: 12px;
}
.page-about .flow-num::after {
  content: "";
  flex: 1;
  height: 3px;
  background: linear-gradient(90deg, var(--orange), rgba(242, 107, 29, 0));
}
.page-about .flow-step--seal .flow-num { color: #FFD9D3; }
.page-about .flow-step--seal .flow-num::after {
  background: linear-gradient(90deg, var(--seal), rgba(196, 52, 42, 0));
}
.page-about .flow-title {
  margin: 0;
  font-size: clamp(17px, 2vw, 20px);
  font-weight: 600;
  color: var(--paper);
}
.page-about .flow-desc {
  margin: 10px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--about-on-dark);
}
.page-about .flow-time {
  display: inline-block;
  margin-top: 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--ink);
  background: var(--orange-hi);
  border: 2px solid var(--ink);
  padding: 4px 9px;
}
.page-about .flow-step--seal .flow-time {
  background: var(--seal);
  color: var(--paper);
  border-color: var(--paper);
}

/* ---------- 06 规模 ---------- */
.page-about .about-stat-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 2px;
  margin-top: 28px;
  border: 2px solid var(--about-hair-light);
  background: var(--about-hair-light);
}
.page-about .about-stat-row .stat {
  background: rgba(11, 43, 38, 0.28);
  padding: 22px 16px 24px;
  min-width: 0;
}
.page-about .about-stat-row .stat-value {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(22px, 3.2vw, 34px);
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--paper);
}
.page-about .about-stat-row .stat-label {
  display: block;
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--about-on-dark);
}

/* ---------- CTA ---------- */
.page-about .about-cta {
  padding: clamp(40px, 5.5vw, 78px) 0;
  border-top: 3px solid var(--ink);
}
.page-about .about-cta-inner {
  display: grid;
  gap: 26px;
  grid-template-columns: 1fr;
  align-items: start;
}
.page-about .about-cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-about .desk-pair { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .page-about .rule {
    grid-template-columns: 64px minmax(0, 1fr);
    gap: 26px;
    align-items: start;
  }
  .page-about .gate-list { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .page-about .flow { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .page-about .about-cta-inner {
    grid-template-columns: minmax(0, 1.5fr) minmax(240px, 1fr);
    align-items: center;
  }
}

@media (min-width: 860px) {
  .page-about .about-grid {
    grid-template-columns: minmax(150px, 1fr) minmax(0, 3fr);
    gap: var(--about-gap);
  }
  .page-about .about-rail {
    position: relative;
    padding-right: 20px;
    align-self: stretch;
  }
  .page-about .about-rail::after {
    content: "";
    position: absolute;
    top: 0;
    bottom: 0;
    right: 0;
    width: 1px;
    background: repeating-linear-gradient(180deg, currentColor 0 2px, transparent 2px 11px);
    opacity: 0.28;
  }
  .page-about .about-rail-note { margin-top: 4px; }
  .page-about .stat-row { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .page-about .flow { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}

@media (min-width: 960px) {
  .page-about .about-hero-grid {
    grid-template-columns: minmax(0, 1.45fr) minmax(260px, 0.9fr);
    align-items: end;
  }
  .page-about .about-hero-side {
    padding-left: 26px;
    border-left: 2px solid var(--about-hair-light);
    align-self: stretch;
  }
  .page-about .about-stat-row .stat { padding: 30px 22px 32px; }
}

@media (max-width: 480px) {
  .page-about .about-hero-stamp { width: 78px; height: 78px; font-size: 11px; }
  .page-about .about-stat-row { grid-template-columns: 1fr; }
  .page-about .about-rail-note { transform: none; }
  .page-about .timeline { padding-left: 26px; }
  .page-about .tl-item::before { left: -22px; }
}