/* ===== 品牌介绍页 · page-about ===== */

.page-about {
  --pa-text: #c3d3e6;
  --pa-panel: linear-gradient(180deg, rgba(30, 58, 95, .42), rgba(5, 13, 26, .74));
  --pa-ring: 1px solid var(--line-ink);
  --pa-edge: rgba(53, 245, 208, .3);
  position: relative;
  overflow-x: clip;
}

/* ---------- 首屏 ---------- */
.page-about .about-top {
  padding-top: 30px;
}

.page-about .breadcrumb {
  margin-bottom: 26px;
  font-size: 13px;
}

.page-about .about-hero {
  position: relative;
  padding-bottom: 34px;
  border-bottom: 1px dashed var(--line);
}

.page-about .about-hero__eyebrow {
  margin: 0;
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--cyan);
}

.page-about .about-hero__title {
  margin: 14px 0 0;
  max-width: 17ch;
  font-size: clamp(30px, 6.4vw, 62px);
  line-height: 1.12;
  font-weight: 900;
  letter-spacing: -.015em;
  color: var(--white);
  text-shadow: 0 0 30px rgba(255, 107, 74, .18);
}

.page-about .about-hero__title::after {
  content: "";
  display: block;
  width: 78px;
  height: 4px;
  margin-top: 20px;
  background: linear-gradient(90deg, var(--coral), var(--cyan));
}

.page-about .about-hero__lede {
  margin: 22px 0 0;
  max-width: 62ch;
  font-size: 16px;
  line-height: 1.85;
  color: var(--pa-text);
}

.page-about .about-stats {
  display: flex;
  flex-wrap: wrap;
  margin: 30px 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px dashed var(--line);
  border-bottom: 1px dashed var(--line);
}

.page-about .about-stats li {
  display: flex;
  align-items: baseline;
  gap: 6px;
  padding: 12px 18px 12px 0;
  margin-right: 18px;
  border-right: 1px dashed var(--line);
}

.page-about .about-stats li:last-child {
  border-right: 0;
  margin-right: 0;
  padding-right: 0;
}

.page-about .about-stats__n {
  font-size: 20px;
  font-weight: 700;
  color: var(--white);
}

.page-about .about-stats__u {
  font-size: 12px;
  margin-left: 1px;
}

.page-about .about-stats__l {
  font-size: 12px;
  color: var(--slate);
  white-space: nowrap;
}

/* ---------- 章节骨架 ---------- */
.page-about .about-sec {
  position: relative;
  padding: 56px 0;
  border-bottom: 1px dashed var(--line);
}

.page-about .about-sec:last-of-type {
  border-bottom: 0;
}

.page-about .section__head {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 30px;
}

.page-about .section__index {
  flex: none;
  font-size: clamp(38px, 8vw, 82px);
  line-height: .86;
  font-weight: 900;
  color: transparent;
  -webkit-text-stroke: 1.5px var(--coral);
  text-stroke: 1.5px var(--coral);
}

.page-about .section__headtext {
  padding-top: 4px;
}

.page-about .section__title {
  margin: 0 0 8px;
  font-size: clamp(22px, 3.6vw, 34px);
  font-weight: 800;
  line-height: 1.25;
  color: var(--white);
}

.page-about .section__lead {
  margin: 0;
  max-width: 52ch;
  font-size: 15px;
  line-height: 1.7;
  color: var(--slate);
}

/* ---------- 01 起源 ---------- */
.page-about .about-origin {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
}

.page-about .about-origin__text p {
  margin: 0 0 16px;
  font-size: 16px;
  line-height: 1.9;
  color: var(--pa-text);
}

.page-about .about-quote {
  position: relative;
  margin: 24px 0 0;
  padding: 18px 22px;
  border-left: 3px solid var(--cyan);
  background: rgba(53, 245, 208, .06);
  border-radius: 0 var(--radius) var(--radius) 0;
}

.page-about .about-quote p {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.75;
  font-weight: 600;
  color: var(--cyan);
}

.page-about .about-origin__fig {
  position: relative;
  margin: 0;
  border: 1px solid var(--line);
  background: var(--abyss);
  box-shadow: var(--shadow-lift);
}

.page-about .about-origin__fig img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

.page-about .about-origin__cap {
  position: absolute;
  left: 0;
  bottom: 0;
  padding: 5px 12px;
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--ink);
  background: var(--coral);
}

/* ---------- 02 团队 ---------- */
.page-about .about-team__fig {
  position: relative;
  margin: 0 0 26px;
  border: 1px solid var(--line);
  background: var(--abyss);
  overflow: hidden;
}

.page-about .about-team__fig img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

.page-about .about-team__cap {
  position: absolute;
  right: 0;
  top: 0;
  padding: 5px 12px;
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--ink);
  background: var(--yellow);
}

.page-about .about-team {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.page-about .about-role {
  position: relative;
  padding: 22px 20px 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--pa-panel);
  box-shadow: var(--shadow-lift);
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-about .about-role:hover {
  transform: translateY(-3px);
  border-color: var(--cyan);
}

.page-about .about-role__no {
  display: inline-block;
  padding: 3px 8px;
  font-size: 10.5px;
  letter-spacing: .14em;
  color: var(--ink);
  background: var(--yellow);
  border-radius: 2px;
}

.page-about .about-role__t {
  margin: 16px 0 10px;
  font-size: 18px;
  font-weight: 800;
  color: var(--white);
}

.page-about .about-role__d {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--pa-text);
}

.page-about .about-rhythm {
  margin: 22px 0 0;
  padding: 18px 20px;
  border: 1px dashed var(--line);
  border-radius: var(--radius);
  font-size: 15px;
  line-height: 1.85;
  color: var(--slate);
}

.page-about .about-rhythm__num {
  color: var(--cyan);
  font-weight: 700;
}

/* ---------- 03 收录标准 ---------- */
.page-about .about-std {
  display: grid;
  grid-template-columns: 1fr;
  gap: 30px;
}

.page-about .about-sub {
  margin: 0 0 14px;
  padding-bottom: 10px;
  font-size: 15px;
  letter-spacing: .04em;
  font-weight: 800;
  color: var(--coral);
  border-bottom: 1px solid var(--line);
}

.page-about .about-gate {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: gate;
}

.page-about .about-gate li {
  position: relative;
  padding: 12px 0 12px 34px;
  border-bottom: 1px dashed var(--line);
  font-size: 15px;
  line-height: 1.75;
  color: var(--pa-text);
}

.page-about .about-gate li:last-child {
  border-bottom: 0;
}

.page-about .about-gate li::before {
  counter-increment: gate;
  content: counter(gate, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 13px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  color: var(--coral);
}

.page-about .about-std__p {
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--pa-text);
}

.page-about .about-std__p:last-child {
  margin-bottom: 0;
}

.page-about .about-taglist {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 16px;
  padding: 0;
  list-style: none;
}

.page-about .about-taglist .tag {
  transition: transform var(--dur) var(--ease);
}

.page-about .about-taglist .tag:hover {
  transform: translateY(-2px);
}

/* ---------- 04 时间轴 ---------- */
.page-about .about-tl {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
}

.page-about .about-tl__item {
  position: relative;
  padding: 22px 0 20px;
  border-top: 1px dashed var(--line);
}

.page-about .about-tl__item::before {
  content: "";
  position: absolute;
  top: -5px;
  left: 0;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--deep);
  border: 2px solid var(--cyan);
  transition: background var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.page-about .about-tl__item:hover::before {
  background: var(--cyan);
  box-shadow: 0 0 0 5px rgba(53, 245, 208, .16);
}

.page-about .about-tl__year {
  display: block;
  font-size: 13px;
  letter-spacing: .1em;
  color: var(--coral);
}

.page-about .about-tl__t {
  margin: 10px 0 8px;
  font-size: 17px;
  font-weight: 800;
  color: var(--white);
}

.page-about .about-tl__d {
  margin: 0 0 12px;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--pa-text);
}

.page-about .about-tl__kw {
  display: inline-block;
  padding: 3px 9px;
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--cyan);
  border: 1px solid var(--pa-edge);
  border-radius: 2px;
  opacity: .55;
  transition: opacity var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-about .about-tl__item:hover .about-tl__kw,
.page-about .about-tl__item:focus-within .about-tl__kw {
  opacity: 1;
  border-color: var(--cyan);
}

.page-about .about-tl__fig {
  margin: 30px 0 0;
  border: 1px solid var(--line);
  background: var(--abyss);
  overflow: hidden;
}

.page-about .about-tl__fig img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- 05 合作 ---------- */
.page-about .about-partner .tablist {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 22px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line-ink);
}

.page-about .about-partner .tab {
  appearance: none;
  -webkit-appearance: none;
  padding: 9px 18px;
  font: inherit;
  font-size: 14px;
  color: var(--slate);
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 2px;
  cursor: pointer;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-about .about-partner .tab:hover {
  color: var(--cyan);
  border-color: var(--cyan);
}

.page-about .about-partner .tab[aria-selected="true"] {
  color: var(--ink);
  font-weight: 700;
  background: var(--coral);
  border-color: var(--coral);
}

.page-about .about-partner .tab[aria-selected="true"]:hover {
  color: var(--ink);
  border-color: var(--coral);
}

.page-about .about-partner .panel {
  padding: 24px 22px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--cyan);
  border-radius: 0 var(--radius) var(--radius) 0;
  background: var(--pa-panel);
}

.page-about .about-partner .panel[hidden] {
  display: none;
}

.page-about .about-partner .panel h3 {
  margin: 0 0 12px;
  font-size: 19px;
  font-weight: 800;
  color: var(--white);
}

.page-about .about-partner .panel p {
  margin: 0 0 12px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--pa-text);
}

.page-about .about-partner .panel p:last-child {
  margin-bottom: 0;
}

/* ---------- 收尾 ---------- */
.page-about .about-cta {
  padding: 8px 0 66px;
}

.page-about .about-cta__box {
  position: relative;
  padding: 32px 26px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background:
    radial-gradient(120% 150% at 100% 0%, rgba(53, 245, 208, .13), transparent 58%),
    radial-gradient(120% 150% at 0% 100%, rgba(255, 107, 74, .16), transparent 58%),
    var(--abyss);
  overflow: hidden;
}

.page-about .about-cta__box::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 62px;
  height: 3px;
  background: linear-gradient(90deg, var(--coral), var(--cyan));
}

.page-about .about-cta__t {
  margin: 0 0 12px;
  font-size: clamp(20px, 3.2vw, 27px);
  font-weight: 900;
  color: var(--white);
}

.page-about .about-cta__d {
  margin: 0;
  max-width: 58ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--pa-text);
}

.page-about .about-cta__links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

/* ---------- 断点 ---------- */
@media (min-width: 720px) {
  .page-about .about-team {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
  }

  .page-about .about-tl {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 26px;
  }

  .page-about .about-tl__item:nth-child(odd) {
    padding-right: 4px;
  }
}

@media (min-width: 900px) {
  .page-about .about-origin {
    grid-template-columns: 5fr 7fr;
    gap: 42px;
    align-items: start;
  }

  .page-about .about-std {
    grid-template-columns: 5fr 7fr;
    gap: 42px;
    align-items: start;
  }

  .page-about .about-tl {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    column-gap: 30px;
  }

  .page-about .about-tl__item:nth-child(3n + 2) {
    margin-top: 26px;
  }

  .page-about .about-tl__item:nth-child(3n) {
    margin-top: 52px;
  }

  .page-about .about-cta__box {
    padding: 44px 44px 48px;
  }
}

@media (min-width: 1024px) {
  .page-about .about-sec {
    padding: 72px 0;
  }

  .page-about .about-origin__text p,
  .page-about .about-hero__lede {
    font-size: 17px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .about-role,
  .page-about .about-tl__item::before,
  .page-about .about-tl__kw,
  .page-about .about-taglist .tag {
    transition: none;
  }

  .page-about .about-role:hover {
    transform: none;
  }
}
<<<END>>>