/* ============ 品牌理念页 /values/ ============ */
.page-about {
  --ab-gold-line: rgba(201, 162, 75, 0.42);
  --ab-ink-soft: rgba(247, 243, 234, 0.76);
  --ab-ink-faint: rgba(247, 243, 234, 0.56);
}

/* ---------- 通用小标签 ---------- */
.page-about .ab-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 16px;
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  color: var(--red);
}
.page-about .ab-eyebrow::before {
  content: "";
  width: 26px;
  height: 1px;
  background: var(--gold);
}
.page-about .ab-eyebrow--light {
  color: var(--gold-hi);
}
.page-about .ab-eyebrow--light::before {
  background: var(--gold-hi);
}

.page-about .ab-inline-link {
  color: var(--red);
  text-decoration: none;
  border-bottom: 1px solid var(--gold);
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease);
}
.page-about .ab-inline-link:hover {
  color: var(--red-2);
  border-bottom-color: var(--red-2);
}

/* ---------- 面包屑 ---------- */
.page-about .ab-crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-bottom: clamp(26px, 5vw, 48px);
  font-size: 0.8125rem;
  letter-spacing: 0.08em;
  color: var(--smoke);
}
.page-about .ab-crumbs__link {
  color: var(--smoke);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease);
}
.page-about .ab-crumbs__link:hover {
  color: var(--red);
  border-bottom-color: var(--gold);
}
.page-about .ab-crumbs__sep {
  color: var(--gold);
}
.page-about .ab-crumbs__cur {
  color: var(--ink);
  font-weight: 600;
}

/* ---------- 首屏 ---------- */
.page-about .ab-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  background: var(--paper);
  padding: 0 0 clamp(48px, 7vw, 96px);
}
.page-about .ab-hero__art {
  height: clamp(96px, 22vw, 150px);
  background: linear-gradient(120deg, var(--red) 0%, var(--red-2) 46%, #4a0a14 100%);
  clip-path: polygon(0 100%, 0 0, 100% 42%, 100% 100%);
  margin-bottom: clamp(18px, 4vw, 34px);
}
.page-about .ab-hero__inner {
  position: relative;
  z-index: 2;
  padding-top: clamp(20px, 4vw, 40px);
}
.page-about .ab-hero__grid {
  display: grid;
  gap: clamp(32px, 5vw, 56px);
}
.page-about .ab-hero__title {
  margin: 0 0 20px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: var(--fs-display);
  line-height: 1.15;
  letter-spacing: -0.01em;
  color: var(--ink);
  max-width: 18em;
}
.page-about .ab-hero__lede {
  margin: 0 0 18px;
  color: var(--smoke);
}
.page-about .ab-hero__meta {
  margin: 0 0 26px;
  padding-left: 14px;
  border-left: 2px solid var(--gold);
  font-size: 0.875rem;
  color: var(--smoke);
  letter-spacing: 0.02em;
}
.page-about .ab-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* 概况卡 */
.page-about .ab-facts {
  position: relative;
  padding: clamp(20px, 3vw, 28px);
  background: var(--glass);
  border: 1px solid var(--line);
  border-left: 3px solid var(--red);
  box-shadow: var(--shadow-panel);
  backdrop-filter: blur(8px);
}
.page-about .ab-facts__title {
  margin: 0 0 16px;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.22em;
  color: var(--red);
}
.page-about .ab-facts__list {
  margin: 0;
}
.page-about .ab-facts__row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 0;
  border-top: 1px solid var(--line-soft);
}
.page-about .ab-facts__row:first-child {
  border-top: 0;
  padding-top: 0;
}
.page-about .ab-facts__k {
  font-size: 0.875rem;
  color: var(--smoke);
}
.page-about .ab-facts__v {
  margin: 0;
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--ink);
}

/* ---------- 小屏步骤导航 ---------- */
.page-about .ab-steps {
  background: var(--paper-2);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 16px 20px;
}
.page-about .ab-steps__list {
  display: flex;
  flex-direction: column;
  gap: 2px;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: abstep;
}
.page-about .ab-steps__item {
  counter-increment: abstep;
}
.page-about .ab-steps__link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 11px 4px;
  border-bottom: 1px solid var(--line-soft);
  color: var(--ink);
  font-size: 0.9375rem;
  text-decoration: none;
  transition: color 0.18s var(--ease);
}
.page-about .ab-steps__link::before {
  content: counter(abstep, decimal-leading-zero);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--gold);
  letter-spacing: 0.06em;
}
.page-about .ab-steps__link:hover {
  color: var(--red);
}

/* ---------- 章节外壳 ---------- */
.page-about .ab-block {
  padding: clamp(56px, 9vw, 112px) 0;
}
.page-about .ab-block .h2 {
  margin: 0 0 20px;
  max-width: 22em;
}
.page-about .ab-block .lede {
  margin: 0 0 20px;
  color: var(--smoke);
}
.page-about .ab-block .prose {
  margin: 0 0 20px;
  color: var(--smoke);
}

/* ---------- 非对称两栏 ---------- */
.page-about .ab-split {
  display: grid;
  gap: clamp(24px, 4vw, 48px);
}
.page-about .ab-vtitle {
  margin: 0 0 18px;
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 1.05rem + 0.9vw, 1.75rem);
  font-weight: 800;
  letter-spacing: 0.16em;
  line-height: 1.2;
  color: var(--red);
}

/* ---------- 能力四格 ---------- */
.page-about .ab-caps {
  display: grid;
  gap: 16px;
  margin-top: clamp(28px, 4vw, 46px);
}
.page-about .ab-cap {
  padding: 20px 22px 24px;
  background: var(--paper);
  border-top: 3px solid var(--red);
  box-shadow: 0 10px 30px -26px rgba(20, 16, 14, 0.6);
  transition: border-color 0.2s var(--ease), transform 0.2s var(--ease), box-shadow 0.2s var(--ease);
}
.page-about .ab-cap:hover {
  border-top-color: var(--gold);
  transform: translateY(-2px);
  box-shadow: var(--shadow-panel);
}
.page-about .ab-cap__title {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--ink);
}
.page-about .ab-cap__text {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--smoke);
}

/* ---------- 时间线区 ---------- */
.page-about .ab-timeline {
  background: var(--ink);
  color: var(--paper);
}
.page-about .ab-timeline__title {
  color: var(--paper);
}
.page-about .ab-band {
  position: relative;
  margin: 0 0 clamp(40px, 6vw, 68px);
  overflow: hidden;
}
.page-about .ab-band__img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(0.85) contrast(1.05);
}
.page-about .ab-band::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(20, 16, 14, 0.05) 0%, rgba(20, 16, 14, 0.78) 100%);
  pointer-events: none;
}
.page-about .ab-band__cap {
  position: absolute;
  left: clamp(16px, 3vw, 32px);
  bottom: clamp(14px, 3vw, 26px);
  z-index: 2;
  font-family: var(--font-display);
  font-size: clamp(0.9375rem, 0.85rem + 0.4vw, 1.125rem);
  letter-spacing: 0.08em;
  color: var(--gold-hi);
}

.page-about .ab-track {
  position: relative;
  margin: clamp(28px, 4vw, 44px) 0 0;
  padding: 0 0 0 56px;
  list-style: none;
}
.page-about .ab-track::before {
  content: "";
  position: absolute;
  top: 6px;
  bottom: 6px;
  left: 20px;
  width: 1px;
  background: linear-gradient(180deg, var(--gold-hi) 0%, var(--gold) 40%, rgba(201, 162, 75, 0.15) 100%);
}
.page-about .ab-track__item {
  position: relative;
  padding-bottom: clamp(30px, 4.5vw, 50px);
}
.page-about .ab-track__item:last-child {
  padding-bottom: 0;
}
.page-about .ab-track__seal {
  position: absolute;
  left: -56px;
  top: -4px;
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--ink);
  border: 1px solid var(--gold);
  color: var(--gold-hi);
  font-family: var(--font-display);
  font-size: 0.875rem;
  transition: background 0.2s var(--ease), color 0.2s var(--ease), border-color 0.2s var(--ease);
}
.page-about .ab-track__item:hover .ab-track__seal,
.page-about .ab-track__item:focus-within .ab-track__seal {
  background: var(--gold);
  border-color: var(--gold-hi);
  color: var(--ink);
}
.page-about .ab-track__title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: clamp(1.0625rem, 0.95rem + 0.5vw, 1.25rem);
  font-weight: 700;
  color: var(--paper);
}
.page-about .ab-track__text {
  margin: 0;
  max-width: 38em;
  font-size: 0.9375rem;
  line-height: 1.85;
  color: var(--ab-ink-soft);
}

/* ---------- 服务网络 ---------- */
.page-about .ab-network {
  background: var(--paper);
}
.page-about .ab-team {
  display: grid;
  gap: 1px;
  margin: clamp(24px, 3.5vw, 38px) 0 clamp(26px, 4vw, 40px);
  padding: 0;
  list-style: none;
  background: var(--line-soft);
}
.page-about .ab-team__item {
  display: grid;
  gap: 4px;
  padding: 18px 20px;
  background: var(--paper-2);
  border-left: 3px solid var(--red-2);
  transition: border-color 0.2s var(--ease), background 0.2s var(--ease);
}
.page-about .ab-team__item:hover {
  border-left-color: var(--gold);
  background: var(--paper);
}
.page-about .ab-team__num {
  font-size: 1.75rem;
  font-weight: 700;
  line-height: 1;
  color: var(--red);
}
.page-about .ab-team__name {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  color: var(--ink);
}
.page-about .ab-team__desc {
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--smoke);
}
.page-about .ab-network__label {
  margin: 0 0 12px;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  color: var(--red);
}
.page-about .ab-regions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.page-about .ab-regions__item {
  padding: 7px 16px;
  border: 1px solid var(--line);
  font-size: 0.875rem;
  letter-spacing: 0.08em;
  color: var(--ink);
  transition: border-color 0.2s var(--ease), color 0.2s var(--ease);
}
.page-about .ab-regions__item:hover {
  border-color: var(--gold);
  color: var(--red);
}
.page-about .ab-figure {
  margin: 0;
}
.page-about .ab-figure__img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--line);
}
.page-about .ab-figure__cap {
  margin-top: 12px;
  padding-left: 12px;
  border-left: 2px solid var(--gold);
  font-size: 0.8125rem;
  line-height: 1.7;
  color: var(--smoke);
}

/* ---------- 资质与保障 ---------- */
.page-about .ab-assurance {
  background: var(--paper-2);
}
.page-about .ab-assurance__head {
  display: grid;
  gap: clamp(22px, 3.5vw, 40px);
  margin-bottom: clamp(32px, 5vw, 52px);
}
.page-about .ab-seal {
  margin: 0;
  max-width: 260px;
}
.page-about .ab-seal__img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: 50%;
  filter: saturate(0.9);
}
.page-about .ab-docs {
  display: grid;
  gap: 12px;
}
.page-about .ab-doc {
  background: var(--paper);
  border-top: 2px solid var(--red);
  padding: 0 clamp(18px, 2.4vw, 28px);
  transition: border-color 0.2s var(--ease), box-shadow 0.2s var(--ease);
}
.page-about .ab-doc[open] {
  border-top-color: var(--gold);
  box-shadow: var(--shadow-panel);
}
.page-about .ab-doc summary {
  position: relative;
  display: block;
  padding: 20px 36px 20px 0;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-display);
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--ink);
  transition: color 0.18s var(--ease);
}
.page-about .ab-doc summary::-webkit-details-marker {
  display: none;
}
.page-about .ab-doc summary::after {
  content: "+";
  position: absolute;
  right: 2px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  font-size: 1.25rem;
  line-height: 1;
  color: var(--gold);
}
.page-about .ab-doc[open] summary::after {
  content: "–";
}
.page-about .ab-doc summary:hover {
  color: var(--red);
}
.page-about .ab-doc__body {
  padding: 0 0 22px;
  max-width: 40em;
  font-size: 0.9375rem;
  line-height: 1.85;
  color: var(--smoke);
}

/* ---------- 合作生态 ---------- */
.page-about .ab-eco {
  background: var(--paper);
}
.page-about .ab-eco__title {
  max-width: 24em;
}
.page-about .ab-eco__lede {
  max-width: 38em;
}
.page-about .ab-eco__grid {
  display: grid;
  gap: 18px;
  margin: clamp(30px, 4.5vw, 50px) 0 clamp(26px, 4vw, 40px);
}
.page-about .ab-eco__card {
  position: relative;
  padding: 26px 24px 28px;
  background: var(--paper-2);
  border-bottom: 3px solid var(--red-2);
  transition: border-color 0.2s var(--ease), transform 0.2s var(--ease), background 0.2s var(--ease);
}
.page-about .ab-eco__card:hover {
  border-bottom-color: var(--gold);
  transform: translateY(-3px);
  background: var(--paper);
}
.page-about .ab-eco__card .seal-badge {
  position: absolute;
  top: -16px;
  left: 22px;
}
.page-about .ab-eco__name {
  margin: 12px 0 10px;
  font-family: var(--font-display);
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--ink);
}
.page-about .ab-eco__text {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.82;
  color: var(--smoke);
}
.page-about .ab-eco__foot {
  margin: 0;
  max-width: 38em;
  font-size: 0.9375rem;
  line-height: 1.85;
  color: var(--smoke);
}

/* ---------- 长期合作表现 ---------- */
.page-about .ab-why {
  position: relative;
  background: linear-gradient(155deg, var(--red) 0%, #5c0d18 62%, var(--ink) 100%);
  color: var(--paper);
}
.page-about .ab-why__title {
  color: var(--paper);
}
.page-about .ab-why__stats {
  display: grid;
  gap: 1px;
  margin: clamp(28px, 4vw, 44px) 0 clamp(30px, 4.5vw, 48px);
  padding: 0;
  list-style: none;
  background: rgba(201, 162, 75, 0.32);
}
.page-about .ab-why__stat {
  display: grid;
  gap: 8px;
  padding: 20px 22px;
  background: rgba(20, 16, 14, 0.42);
}
.page-about .ab-why__num {
  font-size: clamp(1.75rem, 1.3rem + 1.6vw, 2.5rem);
  font-weight: 700;
  line-height: 1;
  color: var(--gold-hi);
}
.page-about .ab-why__label {
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--ab-ink-soft);
}
.page-about .ab-why__body {
  display: grid;
  gap: 18px;
  max-width: 42em;
}
.page-about .ab-why__body p {
  margin: 0;
  font-size: 1rem;
  line-height: 1.85;
  color: var(--ab-ink-soft);
}

/* ---------- 后续入口 ---------- */
.page-about .ab-next {
  padding: clamp(48px, 7vw, 84px) 0;
  background: var(--paper-2);
}
.page-about .ab-next__label {
  margin: 0 0 18px;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.22em;
  color: var(--red);
}
.page-about .ab-next__list {
  display: grid;
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
  background: var(--line-soft);
}
.page-about .ab-next__link {
  display: block;
  padding: 18px 20px;
  background: var(--paper);
  color: var(--ink);
  font-size: 0.9375rem;
  text-decoration: none;
  border-left: 3px solid transparent;
  transition: border-color 0.18s var(--ease), color 0.18s var(--ease), background 0.18s var(--ease);
}
.page-about .ab-next__link:hover {
  border-left-color: var(--gold);
  color: var(--red);
  background: var(--paper-2);
}

/* ================= 响应式 ================= */
@media (min-width: 620px) {
  .page-about .ab-caps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-about .ab-cap:nth-child(even) {
    margin-top: 20px;
  }
  .page-about .ab-team {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-about .ab-why__stats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-about .ab-next__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-about .ab-hero {
    padding-bottom: clamp(72px, 8vw, 120px);
  }
  .page-about .ab-hero__art {
    position: absolute;
    top: -16%;
    right: -30%;
    z-index: 0;
    width: min(720px, 62vw);
    height: min(720px, 62vw);
    margin: 0;
    clip-path: polygon(0 0, 100% 0, 100% 100%, 46% 100%);
    background: radial-gradient(circle at 32% 28%, var(--red-2) 0%, var(--red) 46%, #4a0a14 100%);
  }
  .page-about .ab-hero__inner {
    padding-top: clamp(56px, 8vw, 104px);
  }
  .page-about .ab-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    align-items: start;
  }
  .page-about .ab-steps {
    display: none;
  }
  .page-about .ab-split {
    grid-template-columns: 108px minmax(0, 1fr);
    gap: clamp(32px, 5vw, 72px);
  }
  .page-about .ab-split--media {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
  }
  .page-about .ab-vtitle {
    writing-mode: vertical-rl;
    margin: 0;
    padding-left: 16px;
    border-left: 2px solid var(--gold);
    letter-spacing: 0.3em;
  }
  .page-about .ab-track {
    padding-left: 76px;
  }
  .page-about .ab-track::before {
    left: 26px;
  }
  .page-about .ab-track__seal {
    left: -76px;
    width: 52px;
    height: 52px;
    font-size: 1rem;
  }
  .page-about .ab-assurance__head {
    grid-template-columns: 260px minmax(0, 1fr);
    align-items: center;
  }
  .page-about .ab-seal {
    max-width: none;
  }
  .page-about .ab-eco__grid {
    grid-template-columns: repeat(12, minmax(0, 1fr));
  }
  .page-about .ab-eco__card--a {
    grid-column: 1 / span 5;
  }
  .page-about .ab-eco__card--b {
    grid-column: 7 / span 4;
    margin-top: 34px;
  }
  .page-about .ab-eco__card--c {
    grid-column: 4 / span 5;
    margin-top: 8px;
  }
  .page-about .ab-why__stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  .page-about .ab-next__list {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 1180px) {
  .page-about .ab-network .ab-split--media {
    gap: clamp(48px, 6vw, 88px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .ab-cap,
  .page-about .ab-eco__card,
  .page-about .ab-team__item,
  .page-about .ab-next__link,
  .page-about .ab-track__seal {
    transition: none;
  }
  .page-about .ab-cap:hover,
  .page-about .ab-eco__card:hover {
    transform: none;
  }
}
<<<END>>>