/* ============ 品牌介绍页 page-about ============ */
.page-about {
  --about-glow: radial-gradient(120% 90% at 84% 0%, rgba(201, 162, 39, .18), transparent 64%);
  --about-rail-line: linear-gradient(180deg, rgba(201, 162, 39, .6), rgba(42, 39, 64, .25));
  display: block;
  overflow-wrap: break-word;
}

.page-about img {
  max-width: 100%;
  height: auto;
}

.page-about .content {
  position: relative;
}

/* ---------- 首屏 ---------- */
.page-about .about-hero {
  position: relative;
  padding: clamp(20px, 4vw, 42px) 0 clamp(30px, 5vw, 56px);
  border-bottom: 1px solid var(--line);
  background-image: var(--about-glow);
  background-repeat: no-repeat;
  background-size: 100% 320px;
}

.page-about .about-hero .eyebrow {
  margin: 0 0 6px;
}

.page-about .about-hero h1 {
  margin: 12px 0 0;
  font-family: var(--font-head);
  font-weight: 900;
  letter-spacing: -.01em;
  line-height: 1.18;
  font-size: clamp(27px, 5.4vw, 56px);
  color: var(--text);
  max-width: 20ch;
}

.page-about .about-hero .lead {
  margin: clamp(16px, 2.4vw, 24px) 0 0;
  max-width: 60ch;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.85;
  color: var(--muted);
}

.page-about .hero-stats {
  list-style: none;
  margin: clamp(22px, 3.2vw, 36px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.page-about .hero-stats li {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 15px 16px;
  background: var(--ink-2);
}

.page-about .hero-stats .stat-num {
  font-family: var(--font-accent);
  font-size: clamp(21px, 3vw, 30px);
  line-height: 1.1;
  font-weight: 700;
  color: var(--gold-hi);
  font-variant-numeric: tabular-nums;
}

.page-about .hero-stats .stat-label {
  font-size: 13px;
  letter-spacing: .05em;
  color: var(--muted);
}

@media (min-width: 720px) {
  .page-about .hero-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

/* ---------- 顶部横幅 ---------- */
.page-about .about-banner {
  margin: clamp(22px, 3.4vw, 38px) 0 0;
}

/* ---------- 发展脉络：年份轨道 ---------- */
.page-about .timeline {
  list-style: none;
  margin: clamp(26px, 4vw, 46px) 0 0;
  padding: 0;
  display: grid;
  gap: clamp(16px, 2.6vw, 28px);
}

.page-about .tl-item {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
}

.page-about .tl-rail {
  position: relative;
  padding-left: 24px;
  display: flex;
  align-items: flex-start;
}

.page-about .tl-rail::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 18px;
  bottom: calc(-1 * clamp(16px, 2.6vw, 28px));
  width: 1px;
  background: var(--about-rail-line);
}

.page-about .tl-item:last-child .tl-rail::before {
  display: none;
}

.page-about .tl-dot {
  position: absolute;
  left: 0;
  top: 9px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--gold);
  box-shadow: 0 0 0 5px rgba(201, 162, 39, .14), 0 0 18px rgba(242, 208, 107, .5);
}

.page-about .tl-year {
  font-family: var(--font-accent);
  font-size: clamp(30px, 5.2vw, 50px);
  line-height: 1;
  font-weight: 700;
  letter-spacing: -.02em;
  color: var(--gold-hi);
  font-variant-numeric: tabular-nums;
}

@media (min-width: 900px) {
  .page-about .tl-item {
    grid-template-columns: 190px minmax(0, 1fr);
    gap: clamp(20px, 4vw, 52px);
  }
  .page-about .tl-rail {
    position: sticky;
    top: calc(var(--bar-h) + 30px);
    align-self: start;
  }
}

.page-about .tl-body .panel-trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  width: 100%;
  padding: 16px 18px;
  text-align: left;
  cursor: pointer;
  color: var(--text);
  background: rgba(30, 27, 46, .6);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  transition: border-color .24s var(--ease), background .24s var(--ease);
}

.page-about .tl-body .panel-trigger:hover,
.page-about .tl-body .panel-trigger:focus-visible {
  border-color: rgba(201, 162, 39, .5);
  background: rgba(30, 27, 46, .85);
}

.page-about .tl-stage {
  display: flex;
  flex-direction: column;
  gap: 5px;
  min-width: 0;
}

.page-about .tl-range {
  font-family: var(--font-accent);
  font-size: 14px;
  letter-spacing: .08em;
  color: var(--cyan);
}

.page-about .tl-name {
  font-family: var(--font-head);
  font-size: clamp(16px, 1.8vw, 19px);
  font-weight: 800;
  line-height: 1.4;
}

.page-about .tl-body .panel-body p {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--muted);
}

.page-about .tl-body .tag-row {
  margin: 12px 0 0;
}

/* ---------- 评测流程 ---------- */
.page-about .about-band {
  background:
    radial-gradient(90% 120% at 8% 0%, rgba(122, 75, 255, .13), transparent 62%),
    var(--ink-2);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-about .about-band--violet {
  background:
    radial-gradient(80% 120% at 90% 100%, rgba(52, 224, 224, .1), transparent 62%),
    radial-gradient(70% 110% at 10% 0%, rgba(122, 75, 255, .16), transparent 60%),
    var(--ink-2);
}

.page-about .process-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 3.6vw, 42px);
  margin-top: clamp(24px, 3.6vw, 40px);
}

@media (min-width: 900px) {
  .page-about .process-grid {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
    align-items: start;
  }
}

.page-about .step-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-about .step {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  gap: 14px;
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, rgba(30, 27, 46, .9), rgba(20, 18, 31, .62));
  transition: transform .24s var(--ease), border-color .24s var(--ease);
}

.page-about .step:hover {
  transform: translateX(4px);
  border-color: rgba(201, 162, 39, .48);
}

.page-about .step-num {
  font-family: var(--font-accent);
  font-size: 26px;
  line-height: 1.1;
  color: var(--gold-hi);
  font-variant-numeric: tabular-nums;
}

.page-about .step-body h3 {
  margin: 2px 0 6px;
  font-size: 17px;
  font-weight: 800;
  color: var(--text);
}

.page-about .step-body p {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--muted);
}

.page-about .about-figure {
  margin: 0;
}

.page-about .dim-block {
  margin-top: clamp(28px, 4vw, 48px);
}

.page-about .sub-title {
  margin: 0 0 14px;
  font-family: var(--font-head);
  font-size: clamp(18px, 2.1vw, 22px);
  font-weight: 800;
  color: var(--text);
}

.page-about .dim-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 12px;
}

.page-about .dim-card {
  padding: 16px 16px 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: rgba(30, 27, 46, .5);
  transition: transform .24s var(--ease), border-color .24s var(--ease), box-shadow .24s var(--ease);
}

.page-about .dim-card:hover,
.page-about .dim-card:focus-within {
  transform: translateY(-4px);
  border-color: rgba(122, 75, 255, .55);
  box-shadow: 0 22px 44px -30px rgba(122, 75, 255, .95);
}

.page-about .dim-name {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 8px;
  font-size: 16px;
  font-weight: 800;
  color: var(--text);
}

.page-about .dim-name::before {
  content: "";
  flex: none;
  width: 8px;
  height: 8px;
  border-radius: 2px;
  background: var(--violet);
}

.page-about .dim-desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--muted);
}

/* ---------- 团队 ---------- */
.page-about .team-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(22px, 3.2vw, 38px);
  margin-top: clamp(24px, 3.6vw, 40px);
}

@media (min-width: 980px) {
  .page-about .team-grid {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
    align-items: start;
  }
}

.page-about .team-cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

@media (min-width: 620px) {
  .page-about .team-cards {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.page-about .team-card {
  padding: 20px;
  border-left: 3px solid rgba(201, 162, 39, .5);
  transition: transform .24s var(--ease), border-color .24s var(--ease);
}

.page-about .team-card:hover {
  transform: translateY(-4px);
  border-left-color: var(--gold-hi);
}

.page-about .team-card h3 {
  margin: 0 0 8px;
  font-size: 17px;
  font-weight: 800;
  color: var(--gold-hi);
}

.page-about .team-card p {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--muted);
}

.page-about .week-flow {
  list-style: none;
  margin: clamp(24px, 3.2vw, 36px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 10px;
}

.page-about .week-flow li {
  padding: 14px 16px;
  border: 1px dashed var(--line);
  border-radius: var(--radius-sm);
  background: rgba(20, 18, 31, .72);
}

.page-about .week-flow .wk {
  display: block;
  margin-bottom: 6px;
  font-family: var(--font-accent);
  font-size: 20px;
  color: var(--gold);
}

.page-about .week-flow .wk-do {
  display: block;
  font-size: 14px;
  line-height: 1.65;
  color: var(--muted);
}

/* ---------- 合作生态 ---------- */
.page-about .partner-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin-top: clamp(24px, 3.6vw, 40px);
}

@media (min-width: 760px) {
  .page-about .partner-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-about .partner-card {
  padding: 22px 20px;
  position: relative;
  overflow: hidden;
  transition: transform .24s var(--ease), border-color .24s var(--ease);
}

.page-about .partner-card::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 2px;
  background: linear-gradient(90deg, var(--violet), var(--cyan));
  opacity: .55;
}

.page-about .partner-card:hover {
  transform: translateY(-4px);
  border-color: rgba(201, 162, 39, .45);
}

.page-about .partner-card h3 {
  margin: 0 0 10px;
  font-size: 18px;
  font-weight: 800;
  color: var(--text);
}

.page-about .partner-card p {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--muted);
}

.page-about .topic-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-top: 20px;
}

.page-about .topic-label {
  font-size: 13px;
  letter-spacing: .08em;
  color: var(--muted);
}

/* ---------- 复现与反馈 ---------- */
.page-about .verify-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin-top: clamp(24px, 3.6vw, 40px);
}

@media (min-width: 760px) {
  .page-about .verify-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.page-about .verify-card {
  padding: 20px;
  border-top: 2px solid rgba(52, 224, 224, .45);
  transition: transform .24s var(--ease), border-color .24s var(--ease);
}

.page-about .verify-card:hover {
  transform: translateY(-4px);
  border-top-color: var(--cyan);
}

.page-about .verify-card h3 {
  margin: 0 0 8px;
  font-size: 17px;
  font-weight: 800;
  color: var(--text);
}

.page-about .verify-card p {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--muted);
}

/* ---------- 行动区 ---------- */
.page-about .cta-box {
  position: relative;
  padding: clamp(24px, 4vw, 46px);
  border: 1px solid rgba(201, 162, 39, .42);
  border-radius: var(--radius);
  background:
    linear-gradient(140deg, rgba(201, 162, 39, .16), rgba(11, 10, 18, .92) 48%),
    var(--ink);
  overflow: hidden;
}

.page-about .cta-box::before {
  content: "";
  position: absolute;
  top: -60px;
  right: -60px;
  width: 220px;
  height: 220px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(52, 224, 224, .22), transparent 68%);
  pointer-events: none;
}

.page-about .cta-title {
  position: relative;
  margin: 0 0 12px;
  font-family: var(--font-head);
  font-size: clamp(21px, 3vw, 32px);
  font-weight: 900;
  line-height: 1.3;
  color: var(--text);
}

.page-about .cta-text {
  position: relative;
  margin: 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--muted);
}

.page-about .cta-actions {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: clamp(18px, 2.6vw, 26px);
}

@media (max-width: 520px) {
  .page-about .cta-actions .btn {
    flex: 1 1 100%;
    text-align: center;
  }
}