/* ================= 品牌理念页 page-about ================= */

.page-about .about-intro {
  padding-top: clamp(28px, 5vw, 56px);
  padding-bottom: clamp(36px, 5vw, 64px);
}

.page-about .about-breadcrumbs {
  margin-bottom: clamp(24px, 3vw, 40px);
}

.page-about .about-h1 {
  margin: 14px 0 24px;
  max-width: 17em;
  font-family: var(--font-head);
  font-size: clamp(32px, 5.4vw, 60px);
  font-weight: 300;
  line-height: 1.2;
  letter-spacing: 0.02em;
  color: var(--blue-900);
}

.page-about .about-lede {
  margin: 0;
  max-width: 42em;
  font-size: clamp(16px, 1.4vw, 17px);
  line-height: 1.9;
  color: var(--blue-700);
}

.page-about .intro-stats {
  list-style: none;
  margin: clamp(30px, 4vw, 46px) 0 0;
  padding: 22px 0 0;
  border-top: 1px solid var(--line);
  display: flex;
  flex-wrap: wrap;
  gap: 14px 46px;
}

.page-about .intro-stats li {
  display: flex;
  align-items: baseline;
  gap: 9px;
}

.page-about .stat-num {
  font-family: var(--font-head);
  font-size: clamp(26px, 3vw, 32px);
  font-weight: 300;
  letter-spacing: 0.02em;
  color: var(--blue-900);
  font-variant-numeric: tabular-nums;
}

.page-about .stat-label {
  font-size: 13px;
  line-height: 1.6;
  color: var(--muted);
}

.page-about .about-quote {
  margin: clamp(34px, 4vw, 48px) 0 0;
  padding: 2px 0 2px 22px;
  border-left: 2px solid var(--coral-500);
}

.page-about .about-quote p {
  margin: 0;
  max-width: 34em;
  font-family: var(--font-head);
  font-size: clamp(17px, 2vw, 21px);
  font-weight: 400;
  line-height: 1.8;
  letter-spacing: 0.02em;
  color: var(--blue-900);
}

.page-about .about-hero-media {
  margin: clamp(40px, 5vw, 68px) 0 0;
}

.page-about .about-hero-media img,
.page-about .about-cat-media img,
.page-about .about-team-media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- 索引 + 章节骨架 ---------- */

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

.page-about .about-index {
  display: none;
}

.page-about .about-chapters {
  min-width: 0;
}

.page-about .chapter + .chapter {
  margin-top: clamp(44px, 5vw, 76px);
  padding-top: clamp(44px, 5vw, 76px);
  border-top: 1px solid var(--line);
}

.page-about .chapter-head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: baseline;
  gap: 16px;
  margin-bottom: 20px;
}

.page-about .chapter-num {
  font-family: var(--font-head);
  font-size: clamp(36px, 5.4vw, 64px);
  font-weight: 300;
  line-height: 1;
  letter-spacing: 0.02em;
  color: var(--mist);
  font-variant-numeric: tabular-nums;
}

.page-about .chapter-title {
  margin: 0;
  font-family: var(--font-head);
  font-size: clamp(21px, 2.6vw, 29px);
  font-weight: 600;
  line-height: 1.4;
  letter-spacing: 0.02em;
  color: var(--blue-900);
}

.page-about .chapter-lead {
  margin: 0 0 26px;
  max-width: 42em;
  font-size: 16px;
  line-height: 1.9;
  color: var(--blue-700);
}

.page-about .chapter-footnote {
  margin: 26px 0 0;
  max-width: 42em;
  font-size: 14px;
  line-height: 1.85;
  color: var(--muted);
}

.page-about .inline-link {
  color: var(--blue-500);
  text-decoration: none;
  border-bottom: 1px solid rgba(30, 122, 156, 0.35);
  transition: color 200ms ease-out, border-color 200ms ease-out;
}

.page-about .inline-link:hover {
  color: var(--coral-deep);
  border-bottom-color: var(--coral-500);
}

/* ---------- 01 分类墙 ---------- */

.page-about .cat-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 32px;
}

.page-about .cat-wall {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-about .cat-item {
  display: grid;
  grid-template-rows: auto 0fr;
  padding: 15px 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #ffffff;
  transition: border-color 200ms ease-out, box-shadow 200ms ease-out, transform 200ms ease-out;
}

.page-about .cat-item:hover,
.page-about .cat-item:focus,
.page-about .cat-item:focus-within {
  grid-template-rows: auto 1fr;
  border-color: var(--accent);
  box-shadow: var(--shadow);
  transform: translateY(-2px);
}

.page-about .cat-head {
  display: flex;
  align-items: baseline;
  gap: 14px;
}

.page-about .cat-index {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}

.page-about .cat-name {
  margin: 0;
  font-family: var(--font-head);
  font-size: 16px;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--blue-900);
}

.page-about .cat-desc {
  margin: 0;
  overflow: hidden;
  min-height: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
  transition: margin-top 220ms ease-out;
}

.page-about .cat-item:hover .cat-desc,
.page-about .cat-item:focus .cat-desc,
.page-about .cat-item:focus-within .cat-desc {
  margin-top: 8px;
}

.page-about .about-cat-media {
  margin: 0;
  border-radius: var(--radius);
  overflow: hidden;
}

@media (hover: none) {
  .page-about .cat-item {
    grid-template-rows: auto 1fr;
  }
  .page-about .cat-desc {
    margin-top: 8px;
  }
}

/* ---------- 02 基础服务 ---------- */

.page-about .svc-list {
  margin: 0;
  border-top: 1px solid var(--line);
}

.page-about .svc-row {
  display: grid;
  gap: 6px;
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
}

.page-about .svc-key {
  font-family: var(--font-head);
  font-size: 16px;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--blue-900);
}

.page-about .svc-val {
  margin: 0;
  font-size: 15px;
  line-height: 1.9;
  color: var(--blue-700);
}

/* ---------- 03 价格三步 ---------- */

.page-about .step-path {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 28px;
}

.page-about .step-title {
  margin: 0 0 8px;
  font-family: var(--font-head);
  font-size: 17px;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--blue-900);
}

.page-about .step-text {
  margin: 0;
  font-size: 15px;
  line-height: 1.9;
  color: var(--blue-700);
}

.page-about .about-cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
}

/* ---------- 04 内容维护 ---------- */

.page-about .upkeep-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 6px;
}

.page-about .upkeep-item {
  padding: 16px 0 16px 22px;
  border-left: 2px solid var(--teal-200);
  transition: border-color 200ms ease-out;
}

.page-about .upkeep-item:hover {
  border-left-color: var(--teal-500);
}

.page-about .upkeep-title {
  margin: 0 0 6px;
  font-family: var(--font-head);
  font-size: 17px;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--blue-900);
}

.page-about .upkeep-when {
  display: inline-block;
  margin-right: 12px;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.12em;
  color: var(--teal-500);
  vertical-align: 2px;
}

.page-about .upkeep-text {
  margin: 0;
  max-width: 40em;
  font-size: 15px;
  line-height: 1.85;
  color: var(--blue-700);
}

/* ---------- 05 团队 ---------- */

.page-about .team-block {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 32px;
}

.page-about .team-text .chapter-lead {
  margin-bottom: 0;
}

.page-about .team-list {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-about .team-list li {
  position: relative;
  padding-left: 18px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--blue-700);
}

.page-about .team-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 12px;
  width: 9px;
  height: 1px;
  background: var(--blue-500);
}

.page-about .team-list strong {
  font-weight: 600;
  color: var(--blue-900);
}

.page-about .team-reach {
  margin: 26px 0 0;
  padding-top: 20px;
  border-top: 1px solid var(--line);
  font-size: 14px;
  line-height: 1.85;
  color: var(--muted);
}

.page-about .about-team-media {
  margin: 0;
  border-radius: var(--radius);
  overflow: hidden;
}

/* ---------- 06 时间轴 ---------- */

.page-about .timeline {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 30px;
}

.page-about .tl-node {
  position: relative;
  padding-left: 22px;
  border-left: 1px solid var(--line);
}

.page-about .tl-dot {
  position: absolute;
  left: -6px;
  top: 7px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--blue-500);
  box-shadow: 0 0 0 2px var(--paper);
}

.page-about .tl-year {
  margin: 0 0 6px;
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}

.page-about .tl-title {
  margin: 0 0 8px;
  font-family: var(--font-head);
  font-size: 16px;
  font-weight: 600;
  line-height: 1.5;
  letter-spacing: 0.02em;
  color: var(--blue-900);
}

.page-about .tl-text {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--muted);
}

/* ---------- 07 折叠面板 ---------- */

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

.page-about .myths .panel {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #ffffff;
  overflow: hidden;
  transition: border-color 200ms ease-out;
}

.page-about .myths .panel[open] {
  border-color: var(--coral-200);
}

.page-about .myths .panel-summary {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 20px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-head);
  font-size: 16px;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--blue-900);
}

.page-about .myths .panel-summary::-webkit-details-marker {
  display: none;
}

.page-about .myths .panel-summary::before {
  content: "";
  flex: 0 0 auto;
  width: 8px;
  height: 8px;
  border-right: 1.5px solid var(--accent);
  border-bottom: 1.5px solid var(--accent);
  transform: rotate(-45deg);
  transition: transform 220ms ease-out;
}

.page-about .myths .panel[open] .panel-summary::before {
  transform: rotate(45deg);
}

.page-about .myths .panel-body {
  padding: 0 20px 20px 42px;
  font-size: 15px;
  line-height: 1.9;
  color: var(--blue-700);
}

.page-about .myths .panel-body p {
  margin: 0;
}

/* ---------- 收尾 ---------- */

.page-about .about-outro {
  padding-top: clamp(48px, 6vw, 88px);
  padding-bottom: clamp(56px, 7vw, 96px);
}

.page-about .outro-card {
  padding: clamp(30px, 4.5vw, 56px);
  border: 1px solid var(--line);
  border-top: 2px solid var(--coral-500);
  border-radius: 0 0 var(--radius) var(--radius);
  background: #ffffff;
  box-shadow: var(--shadow);
}

.page-about .outro-title {
  margin: 12px 0 16px;
  font-family: var(--font-head);
  font-size: clamp(21px, 2.8vw, 30px);
  font-weight: 600;
  line-height: 1.4;
  letter-spacing: 0.02em;
  color: var(--blue-900);
}

.page-about .outro-text {
  margin: 0;
  max-width: 44em;
  font-size: 16px;
  line-height: 1.9;
  color: var(--blue-700);
}

/* ---------- 响应式 ---------- */

@media (min-width: 720px) {
  .page-about .svc-row {
    grid-template-columns: 148px minmax(0, 1fr);
    gap: 28px;
    align-items: baseline;
  }
  .page-about .team-list {
    gap: 16px;
  }
}

@media (min-width: 900px) {
  .page-about .cat-layout {
    grid-template-columns: minmax(0, 1fr) minmax(0, 330px);
    gap: 46px;
    align-items: start;
  }
  .page-about .team-block {
    grid-template-columns: minmax(0, 1fr) minmax(0, 380px);
    gap: 48px;
    align-items: start;
  }
  .page-about .step-path {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 40px;
    position: relative;
  }
  .page-about .step-path::before {
    content: "";
    position: absolute;
    top: 5px;
    left: 0;
    right: 0;
    height: 1px;
    background: var(--wave);
    opacity: 0.4;
  }
  .page-about .step-node {
    position: relative;
    padding-top: 34px;
  }
  .page-about .step-node::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 11px;
    height: 11px;
    border-radius: 50%;
    background: #ffffff;
    border: 2px solid var(--wave);
    box-sizing: border-box;
  }
  .page-about .timeline {
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 26px;
    position: relative;
  }
  .page-about .timeline::before {
    content: "";
    position: absolute;
    top: 5px;
    left: 0;
    right: 0;
    height: 1px;
    background: var(--blue-500);
    opacity: 0.32;
  }
  .page-about .tl-node {
    padding-left: 0;
    padding-top: 34px;
    border-left: 0;
  }
  .page-about .tl-dot {
    left: 0;
    top: 0;
    width: 11px;
    height: 11px;
    background: #ffffff;
    border: 2px solid var(--blue-500);
    box-sizing: border-box;
    box-shadow: none;
    transition: background-color 200ms ease-out, border-color 200ms ease-out;
  }
  .page-about .tl-node:hover .tl-dot {
    background: var(--coral-500);
    border-color: var(--coral-500);
  }
  .page-about .myths {
    max-width: 52em;
  }
}

@media (min-width: 1024px) {
  .page-about .about-split {
    grid-template-columns: 200px minmax(0, 1fr);
    column-gap: 72px;
    align-items: start;
  }
  .page-about .about-index {
    display: block;
    position: sticky;
    top: 112px;
    align-self: start;
  }
}

.page-about .about-index-title {
  margin: 0 0 14px;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--muted);
}

.page-about .about-index-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-about .about-index-list a {
  display: block;
  padding: 7px 0 7px 14px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--muted);
  text-decoration: none;
  border-left: 1px solid var(--line);
  transition: color 200ms ease-out, border-color 200ms ease-out;
}

.page-about .about-index-list a:hover,
.page-about .about-index-list a:focus-visible,
.page-about .about-index-list a.is-active {
  color: var(--blue-900);
  border-left-color: var(--accent);
}
<<<END>>>