/* ============ page-about 品牌概况专属样式 ============ */
.page-about {
  --about-body: #2d3a49;
  --about-soft: #5a6472;
  --about-shadow: 8px 8px 0 rgba(11, 27, 58, 0.14);
  background: var(--paper);
  color: var(--ink);
  overflow-x: hidden;
}

/* 面包屑微调 */
.page-about .about-crumb {
  padding-top: 18px;
}

/* 杂志式刊头 */
.page-about .about-hero {
  position: relative;
  border-bottom: 6px solid var(--navy);
  background:
    linear-gradient(90deg, rgba(230, 0, 18, 0.05) 0%, transparent 38%),
    var(--paper);
}
.page-about .about-hero__inner {
  position: relative;
  padding: 44px 0 52px;
}
.page-about .about-hero__inner::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -6px;
  width: 120px;
  height: 6px;
  background: var(--red);
  z-index: 2;
}
.page-about .about-hero__folio {
  display: none;
  position: absolute;
  right: 18px;
  top: 40px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.28em;
  color: var(--silver);
  writing-mode: vertical-rl;
  transform: rotate(180deg);
}
.page-about .about-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 16px;
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}
.page-about .about-eyebrow::before {
  content: "";
  width: 30px;
  height: 2px;
  background: currentColor;
}
.page-about .about-eyebrow--red {
  color: var(--red);
}
.page-about .about-eyebrow--gold {
  color: var(--gold);
}
.page-about .about-hero__title {
  font-family: var(--heading);
  font-size: clamp(40px, 7.6vw, 88px);
  line-height: 1.04;
  letter-spacing: 0.01em;
  color: var(--navy);
  margin: 0 0 20px;
}
.page-about .about-hero__title-accent {
  display: block;
  color: var(--red);
  text-decoration: underline;
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.14em;
  text-decoration-color: var(--gold);
}
.page-about .about-hero__lede {
  margin: 0 0 34px;
  max-width: 660px;
  font-size: 16px;
  line-height: 1.8;
  color: var(--about-soft);
}
.page-about .about-hero__lede b {
  color: var(--navy);
  font-weight: 700;
}

/* 刊头统计 */
.page-about .about-hero__stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  border-top: 2px solid var(--silver);
  padding-top: 24px;
}
.page-about .about-hero-stat {
  padding: 12px 14px;
  background: #fff;
  border-left: 3px solid var(--red);
  box-shadow: 4px 4px 0 rgba(11, 27, 58, 0.08);
}
.page-about .about-hero-stat:last-child {
  grid-column: 1 / -1;
}
.page-about .about-hero-stat__num {
  display: block;
  font-family: var(--mono);
  font-size: 30px;
  font-weight: 700;
  line-height: 1.1;
  color: var(--navy);
  font-variant-numeric: tabular-nums;
}
.page-about .about-hero-stat__label {
  display: block;
  margin-top: 6px;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--muted);
}

/* 01 每天第一站 */
.page-about .about-intro {
  padding: 64px 0 72px;
  background:
    linear-gradient(rgba(11, 27, 58, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(11, 27, 58, 0.045) 1px, transparent 1px),
    var(--paper);
  background-size: 44px 44px;
}
.page-about .about-intro__grid {
  display: grid;
  gap: 34px;
  align-items: center;
}
.page-about .about-intro__copy p {
  margin: 0 0 16px;
  font-size: 15px;
  line-height: 1.9;
  color: var(--about-body);
}
.page-about .about-intro__copy p b {
  color: var(--navy);
}
.page-about .about-intro__copy .btn {
  margin-top: 10px;
}
.page-about .about-intro__media {
  margin: 0;
  border: 3px solid var(--navy);
  box-shadow: var(--about-shadow);
  transition: transform 0.3s var(--ease);
}
.page-about .about-intro__media:hover {
  transform: translate(-3px, -3px);
}
.page-about .about-intro__media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

/* 通用标题 */
.page-about .about-h2 {
  font-family: var(--heading);
  font-size: clamp(30px, 4.4vw, 48px);
  line-height: 1.08;
  letter-spacing: 0.015em;
  color: var(--navy);
  margin: 0 0 14px;
}
.page-about .about-section-lede {
  margin: 0;
  max-width: 640px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--about-soft);
}

/* 02 服务清单分类 */
.page-about .about-catalog {
  padding: 70px 0;
  background: var(--lunar);
  border-top: 4px solid var(--navy);
  border-bottom: 4px solid var(--navy);
}
.page-about .about-catalog__header {
  margin-bottom: 30px;
}
.page-about .about-catalog__layout {
  display: grid;
  gap: 22px;
}
.page-about .about-catalog__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}
.page-about .about-cat {
  position: relative;
  display: grid;
  grid-template-columns: 40px 1fr;
  grid-template-areas:
    "index zone"
    "icon name"
    "icon desc";
  gap: 2px 14px;
  align-items: start;
  padding: 18px 18px 16px;
  background: #fff;
  border: 2px solid var(--navy);
  box-shadow: 6px 6px 0 rgba(11, 27, 58, 0.14);
  transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease);
}
.page-about .about-cat:hover {
  transform: translateY(-4px) scale(1.01);
  box-shadow: 10px 10px 0 rgba(11, 27, 58, 0.2);
}
.page-about .about-cat__index {
  grid-area: index;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--muted);
  letter-spacing: 0.08em;
}
.page-about .about-cat__zone {
  grid-area: zone;
  justify-self: end;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--red);
  border: 1px solid rgba(230, 0, 18, 0.35);
  padding: 3px 8px;
  letter-spacing: 0.06em;
  white-space: nowrap;
}
.page-about .about-cat__icon {
  grid-area: icon;
  width: 36px;
  height: 36px;
  color: var(--navy);
  transition: color 0.25s var(--ease), transform 0.25s var(--ease);
}
.page-about .about-cat:hover .about-cat__icon {
  color: var(--red);
  transform: scale(1.16);
}
.page-about .about-cat__name {
  grid-area: name;
  margin: 0;
  font-size: 16px;
  font-weight: 700;
  color: var(--navy);
  line-height: 1.3;
}
.page-about .about-cat__desc {
  grid-area: desc;
  margin: 0;
  font-size: 12.5px;
  line-height: 1.65;
  color: var(--muted);
}
.page-about .about-catalog__figure {
  margin: 0;
  border: 2px solid var(--navy);
  box-shadow: 8px 8px 0 rgba(11, 27, 58, 0.14);
  overflow: hidden;
}
.page-about .about-catalog__figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: 260px;
  object-fit: cover;
  object-position: center;
}

/* 03 发展时间线 */
.page-about .about-route {
  position: relative;
  padding: 72px 0 66px;
  background: var(--navy);
  color: #eef0f6;
  overflow: hidden;
}
.page-about .about-route__texture {
  position: absolute;
  inset: 0;
  margin: 0;
  opacity: 0.16;
  mix-blend-mode: screen;
  pointer-events: none;
}
.page-about .about-route__texture img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
}
.page-about .about-route .container {
  position: relative;
  z-index: 1;
}
.page-about .about-route__header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 20px;
  margin-bottom: 40px;
}
.page-about .about-route__header .about-h2 {
  color: #fff;
}
.page-about .about-route__header .about-section-lede {
  color: rgba(238, 240, 246, 0.72);
}
.page-about .about-route__hint {
  display: none;
  flex: none;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.22em;
  color: var(--gold);
  padding-bottom: 8px;
}
.page-about .about-route__track {
  position: relative;
  margin: 0;
  padding: 0;
}
.page-about .about-route__track::before {
  content: "";
  position: absolute;
  top: 14px;
  bottom: 18px;
  left: 9px;
  width: 3px;
  background: linear-gradient(180deg, var(--red), var(--gold) 52%, rgba(255, 215, 0, 0.22));
}
.page-about .about-route__node {
  position: relative;
  list-style: none;
  padding: 0 0 22px 48px;
}
.page-about .about-route__node::before {
  content: "";
  position: absolute;
  left: 0;
  top: 4px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  border: 3px solid var(--gold);
  background: var(--navy);
  transition: background 0.25s var(--ease);
}
.page-about .about-route__node[open]::before {
  background: var(--red);
  border-color: #fff;
  box-shadow: 0 0 0 5px rgba(255, 215, 0, 0.22);
}
.page-about .about-route__summary {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px;
  cursor: pointer;
  color: inherit;
}
.page-about .about-route__summary::-webkit-details-marker {
  display: none;
}
.page-about .about-route__summary:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 4px;
}
.page-about .about-route__summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--mono);
  font-size: 17px;
  color: var(--gold);
  transition: transform 0.25s var(--ease);
}
.page-about .about-route__node[open] .about-route__summary::after {
  transform: rotate(45deg);
}
.page-about .about-route__year {
  font-family: var(--mono);
  font-size: 22px;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--gold);
  line-height: 1.2;
}
.page-about .about-route__name {
  font-size: 15px;
  font-weight: 700;
  color: #fff;
  border-bottom: 1px dashed rgba(255, 215, 0, 0.4);
  padding-bottom: 1px;
}
.page-about .about-route__node[open] .about-route__name {
  color: var(--gold);
}
.page-about .about-route__detail {
  margin-top: 12px;
  padding: 14px 16px;
  background: rgba(18, 49, 95, 0.8);
  border-left: 3px solid var(--red);
  font-size: 13px;
  line-height: 1.8;
  color: rgba(238, 240, 246, 0.94);
}
.page-about .about-route__detail p {
  margin: 0;
}

/* 04 三层维护机制 */
.page-about .about-ops {
  padding: 72px 0 66px;
  background: var(--paper);
}
.page-about .about-ops__header {
  margin-bottom: 32px;
}
.page-about .about-ops__cards {
  display: grid;
  gap: 18px;
  margin-bottom: 36px;
}
.page-about .about-ops-card {
  position: relative;
  padding: 28px 26px 26px;
  background: #fff;
  border: 2px solid var(--navy);
  box-shadow: 8px 8px 0 rgba(11, 27, 58, 0.12);
  overflow: hidden;
  transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease);
}
.page-about .about-ops-card:hover {
  transform: translateY(-4px);
  box-shadow: 12px 12px 0 rgba(11, 27, 58, 0.18);
}
.page-about .about-ops-card__num {
  position: absolute;
  top: 14px;
  right: 18px;
  font-family: var(--mono);
  font-size: 46px;
  font-weight: 700;
  line-height: 1;
  color: transparent;
  -webkit-text-stroke: 1.5px var(--red);
  opacity: 0.7;
}
.page-about .about-ops-card h3 {
  margin: 0 0 12px;
  font-family: var(--heading);
  font-size: 24px;
  letter-spacing: 0.02em;
  color: var(--navy);
  line-height: 1.2;
}
.page-about .about-ops-card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--about-body);
}
.page-about .about-ops__note {
  display: flex;
  flex-direction: column;
  gap: 20px;
  padding: 26px 24px;
  background: var(--navy);
  border-left: 6px solid var(--gold);
  color: rgba(238, 240, 246, 0.9);
}
.page-about .about-ops__note-main {
  flex: 1 1 auto;
  max-width: 760px;
}
.page-about .about-ops__note-main p {
  margin: 0 0 10px;
  font-size: 14px;
  line-height: 1.9;
}
.page-about .about-ops__note-main p:last-child {
  margin-bottom: 0;
}
.page-about .about-ops__trust {
  color: rgba(238, 240, 246, 0.66);
  font-size: 13px;
}
.page-about .about-ops__trust a {
  color: var(--gold);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.page-about .about-ops__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  flex: none;
}

/* 底部红色通道 */
.page-about .about-close {
  padding: 38px 0;
  background:
    linear-gradient(120deg, rgba(255, 255, 255, 0.1) 0%, transparent 34%),
    var(--red);
  color: #fff;
}
.page-about .about-close__inner {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 18px;
}
.page-about .about-close p {
  margin: 0;
  font-size: 19px;
  font-weight: 700;
  letter-spacing: 0.03em;
}
.page-about .about-close__links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.page-about .about-close__links a {
  padding: 9px 18px;
  background: #fff;
  border: 2px solid #fff;
  color: var(--navy);
  font-size: 13px;
  font-weight: 700;
  text-decoration: none;
  box-shadow: 4px 4px 0 rgba(11, 27, 58, 0.3);
  transition: transform 0.2s var(--ease), background 0.2s var(--ease), box-shadow 0.2s var(--ease);
}
.page-about .about-close__links a:hover,
.page-about .about-close__links a:focus-visible {
  background: var(--gold);
  border-color: var(--gold);
  box-shadow: 6px 6px 0 rgba(11, 27, 58, 0.36);
  transform: translate(-2px, -2px);
}

/* ===== 响应式 ===== */
@media (min-width: 640px) {
  .page-about .about-hero__stats {
    grid-template-columns: repeat(3, 1fr);
  }
  .page-about .about-hero-stat:last-child {
    grid-column: auto;
  }
  .page-about .about-catalog__grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .page-about .about-close__inner {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
}

@media (min-width: 900px) {
  .page-about .about-hero__inner {
    padding: 66px 0 58px;
  }
  .page-about .about-hero__folio {
    display: block;
  }
  .page-about .about-hero__stats {
    grid-template-columns: repeat(5, 1fr);
    gap: 0;
    background: #fff;
    border: 2px solid var(--navy);
    box-shadow: var(--about-shadow);
  }
  .page-about .about-hero-stat {
    background: transparent;
    border-left: 3px solid var(--red);
    box-shadow: none;
    padding: 14px 16px;
  }
  .page-about .about-intro {
    padding: 92px 0 88px;
  }
  .page-about .about-intro__grid {
    grid-template-columns: 1.08fr 0.92fr;
    gap: 56px;
  }
  .page-about .about-catalog {
    padding: 92px 0;
  }
  .page-about .about-catalog__layout {
    grid-template-columns: minmax(0, 1fr) 280px;
    gap: 32px;
    align-items: stretch;
  }
  .page-about .about-catalog__figure {
    margin: 0;
    align-self: stretch;
  }
  .page-about .about-catalog__figure img {
    height: 100%;
    object-fit: cover;
  }
  .page-about .about-route {
    padding: 96px 0 88px;
  }
  .page-about .about-route__hint {
    display: block;
  }
  .page-about .about-route__track {
    display: flex;
    gap: 22px;
    overflow-x: auto;
    padding: 0 0 10px;
    scroll-snap-type: x proximity;
    scrollbar-width: thin;
    scrollbar-color: var(--red) rgba(255, 255, 255, 0.12);
  }
  .page-about .about-route__track::-webkit-scrollbar {
    height: 6px;
  }
  .page-about .about-route__track::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.12);
  }
  .page-about .about-route__track::-webkit-scrollbar-thumb {
    background: var(--red);
  }
  .page-about .about-route__track::before {
    top: 56px;
    left: 0;
    right: 0;
    bottom: auto;
    height: 3px;
    background: linear-gradient(90deg, var(--red), var(--gold) 55%, rgba(255, 215, 0, 0.24));
  }
  .page-about .about-route__node {
    flex: 0 0 246px;
    padding: 0 4px 12px;
    scroll-snap-align: start;
  }
  .page-about .about-route__node::before {
    left: 4px;
    top: 46px;
    width: 22px;
    height: 22px;
  }
  .page-about .about-route__summary {
    position: relative;
    flex-direction: column;
    align-items: flex-start;
    gap: 5px;
    padding-top: 60px;
  }
  .page-about .about-route__summary::after {
    position: absolute;
    top: 60px;
    right: 6px;
    margin: 0;
  }
  .page-about .about-ops {
    padding: 92px 0 84px;
  }
  .page-about .about-ops__cards {
    grid-template-columns: repeat(3, 1fr);
  }
  .page-about .about-ops__note {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    gap: 28px;
  }
}

@media (min-width: 1180px) {
  .page-about .about-catalog__grid {
    gap: 18px;
  }
  .page-about .about-route__node {
    flex-basis: 260px;
  }
}