/* ================= 品牌档案页 /profile/ ================= */

.page-about {
  --about-note-w: clamp(210px, 24vw, 300px);
  --about-col-gap: clamp(32px, 5vw, 76px);
  --about-block: clamp(64px, 8vw, 118px);
  color: var(--chalk);
}

/* ---------- 顶部与首屏 ---------- */

.page-about .about-topbar {
  padding-top: calc(var(--header-h) + clamp(16px, 3vw, 34px));
}

.page-about .about-hero {
  padding-top: clamp(18px, 3vw, 34px);
  padding-bottom: clamp(56px, 8vw, 96px);
}

.page-about .hero-frame {
  position: relative;
  display: grid;
  gap: clamp(20px, 3vw, 40px);
  padding: clamp(24px, 4vw, 64px);
  border-radius: var(--radius-lg);
  background:
    radial-gradient(120% 130% at 100% 0%, rgba(255, 106, 26, 0.13), transparent 58%),
    radial-gradient(100% 100% at 0% 100%, rgba(46, 107, 168, 0.2), transparent 62%),
    linear-gradient(158deg, #0b1b33 0%, #05080f 100%);
}

.page-about .hero-side {
  display: flex;
  align-items: center;
  gap: 14px;
  font-family: var(--mono);
}

.page-about .hero-word {
  font-size: 13px;
  letter-spacing: 0.48em;
  text-transform: uppercase;
  color: var(--scale-blue);
}

.page-about .hero-index {
  font-size: 13px;
  letter-spacing: 0.12em;
  color: var(--mist);
}

.page-about .hero-kicker {
  margin: 0 0 18px;
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.16em;
  color: var(--orange);
}

.page-about .hero-title {
  margin: 0 0 22px;
  max-width: 18ch;
  font-size: clamp(34px, 6vw, 72px);
  font-weight: 900;
  line-height: 1.14;
  letter-spacing: -0.02em;
  color: var(--chalk);
}

.page-about .hero-lede {
  margin: 0 0 clamp(28px, 4vw, 44px);
  max-width: 46ch;
  font-size: clamp(16px, 1.2vw, 18px);
  line-height: 1.9;
  color: var(--mist);
}

.page-about .hero-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--line);
  overflow: hidden;
}

.page-about .hero-stat {
  padding: 16px 18px;
  background: rgba(11, 27, 51, 0.72);
}

.page-about .hero-stat-label {
  margin: 0;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--mist);
}

.page-about .hero-stat-num {
  margin: 8px 0 0;
  font-family: var(--mono);
  font-size: 22px;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--chalk);
}

.page-about .hero-stat-num em {
  margin-left: 4px;
  font-style: normal;
  font-size: 13px;
  color: var(--mist);
}

/* ---------- 章节通用 ---------- */

.page-about .about-section {
  padding-top: var(--about-block);
}

.page-about .about-section--last {
  padding-bottom: clamp(48px, 6vw, 90px);
}

.page-about .section-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px 18px;
  margin-bottom: clamp(24px, 3vw, 44px);
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line);
}

.page-about .section-head--stacked {
  flex-direction: column;
  align-items: flex-start;
}

.page-about .section-num {
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.14em;
  color: var(--orange);
}

.page-about .section-title {
  flex: 1 1 auto;
  margin: 0;
  font-size: clamp(24px, 3.2vw, 40px);
  font-weight: 800;
  line-height: 1.22;
  letter-spacing: -0.01em;
  color: var(--chalk);
}

.page-about .section-note {
  flex: 0 0 auto;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--scale-blue);
}

.page-about .about-grid {
  display: grid;
  gap: var(--about-col-gap);
}

.page-about .about-main,
.page-about .about-side {
  min-width: 0;
}

.page-about .about-text {
  max-width: 42ch;
  margin: 0;
  font-size: 17px;
  line-height: 1.9;
  color: var(--chalk);
}

.page-about .about-text + .about-text {
  margin-top: 1.2em;
}

.page-about .about-text + .pledge-list,
.page-about .about-text + .about-cta {
  margin-top: clamp(28px, 3vw, 44px);
}

.page-about .about-note {
  padding-left: 16px;
  border-left: 2px solid var(--rail);
  font-family: var(--mono);
  font-size: 12px;
  line-height: 1.85;
  letter-spacing: 0.03em;
  color: var(--mist);
}

.page-about .about-note p {
  margin: 0 0 10px;
}

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

.page-about .inline-link {
  color: var(--orange);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 106, 26, 0.45);
  transition: border-color 0.24s var(--ease), color 0.24s var(--ease);
}

.page-about .inline-link:hover,
.page-about .inline-link:focus-visible {
  color: var(--ember);
  border-bottom-color: var(--ember);
}

/* ---------- 章节 01：展签 ---------- */

.page-about .about-lead {
  display: grid;
  gap: clamp(32px, 4vw, 56px);
}

.page-about .lead-visual {
  padding: 16px;
  border-radius: var(--radius-lg);
  background: linear-gradient(150deg, rgba(11, 27, 51, 0.92), rgba(5, 8, 15, 0.72));
}

.page-about .lead-visual img,
.page-about .flow-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 14 / 9;
  object-fit: cover;
  border-radius: var(--radius-md);
  background: var(--deep);
}

.page-about .lead-cap {
  margin: 14px 4px 4px;
  font-family: var(--mono);
  font-size: 12px;
  line-height: 1.8;
  letter-spacing: 0.03em;
  color: var(--mist);
}

.page-about .pledge-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 16px;
}

.page-about .pledge {
  padding: 22px 22px 24px;
  border-radius: var(--radius-md);
  border: 1px solid var(--line);
  background: linear-gradient(160deg, rgba(11, 27, 51, 0.75), rgba(5, 8, 15, 0.4));
  transition: border-color 0.24s var(--ease), transform 0.24s var(--ease);
}

.page-about .pledge:hover {
  border-color: var(--line-strong);
  transform: translateY(-4px);
}

.page-about .pledge-mark {
  display: block;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--yellow);
}

.page-about .pledge-title {
  margin: 12px 0 10px;
  font-size: 19px;
  font-weight: 800;
  line-height: 1.35;
  color: var(--chalk);
}

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

/* ---------- 章节 02：口径说明块 ---------- */

.page-about .spec-block {
  margin-top: clamp(28px, 3vw, 44px);
  padding: 22px 22px 24px;
  border-radius: var(--radius-md);
  border: 1px solid var(--line);
  background: rgba(11, 27, 51, 0.5);
}

.page-about .spec-title {
  margin: 0 0 16px;
  font-size: 18px;
  font-weight: 800;
  color: var(--chalk);
}

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

.page-about .spec-text {
  max-width: 46ch;
  margin: 0;
  font-size: 15px;
  line-height: 1.9;
  color: var(--mist);
}

/* ---------- 章节 03：流程 ---------- */

.page-about .flow-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: clamp(22px, 2.5vw, 32px);
}

.page-about .flow-step {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 16px;
  padding-bottom: clamp(22px, 2.5vw, 32px);
  border-bottom: 1px solid var(--line);
}

.page-about .flow-step:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.page-about .flow-index {
  padding-top: 4px;
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--scale-blue);
  white-space: nowrap;
}

.page-about .flow-title {
  margin: 0 0 8px;
  font-size: 19px;
  font-weight: 800;
  color: var(--chalk);
}

.page-about .flow-text {
  max-width: 44ch;
  margin: 0;
  font-size: 16px;
  line-height: 1.9;
  color: var(--mist);
}

.page-about .flow-role {
  display: inline-block;
  margin-top: 12px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--green);
}

.page-about .flow-figure {
  margin: 0 0 26px;
  padding: 14px;
  border-radius: var(--radius-lg);
  background: rgba(11, 27, 51, 0.6);
}

.page-about .flow-figure img {
  aspect-ratio: 12 / 7;
}

.page-about .figure-cap {
  margin: 12px 4px 2px;
  font-family: var(--mono);
  font-size: 12px;
  line-height: 1.8;
  letter-spacing: 0.03em;
  color: var(--mist);
}

/* ---------- 章节 04：团队条形 ---------- */

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

.page-about .team-bar {
  padding: 16px 18px 18px;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  transition: background 0.24s var(--ease), border-color 0.24s var(--ease);
}

.page-about .team-bar:hover,
.page-about .team-bar:focus-visible,
.page-about .team-bar:focus-within {
  background: rgba(20, 51, 92, 0.5);
  border-color: var(--line-strong);
  outline: none;
}

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

.page-about .team-bar-name {
  font-size: 16px;
  font-weight: 700;
  color: var(--chalk);
}

.page-about .team-bar-count {
  margin-left: auto;
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--yellow);
}

.page-about .team-bar-track {
  display: block;
  margin-top: 12px;
  height: 6px;
  border-radius: var(--pill);
  background: rgba(46, 107, 168, 0.22);
  overflow: hidden;
}

.page-about .team-bar-fill {
  display: block;
  width: var(--w, 0%);
  height: 100%;
  border-radius: var(--pill);
  background: linear-gradient(90deg, var(--orange), var(--ember));
}

.page-about .team-bar-detail {
  margin: 10px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--mist);
}

/* ---------- 章节 05：时间线 ---------- */

.page-about .timeline {
  position: relative;
  list-style: none;
  margin: 0;
  padding: 4px 0 4px 34px;
  display: grid;
  gap: clamp(28px, 3vw, 38px);
}

.page-about .timeline-path {
  position: absolute;
  left: 0;
  top: 6px;
  width: 26px;
  height: calc(100% - 12px);
  pointer-events: none;
}

.page-about .timeline-item {
  position: relative;
}

.page-about .timeline-item::before {
  content: "";
  position: absolute;
  left: -26px;
  top: 6px;
  width: 11px;
  height: 11px;
  border-radius: var(--pill);
  background: var(--ink);
  border: 2px solid var(--scale-blue);
  transition: border-color 0.24s var(--ease), transform 0.24s var(--ease);
}

.page-about .timeline-item:hover::before {
  border-color: var(--orange);
  transform: scale(1.3);
}

.page-about .timeline-year {
  display: inline-block;
  padding: 4px 12px;
  border-radius: var(--pill);
  border: 1px solid var(--line-strong);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--orange);
}

.page-about .timeline-title {
  margin: 12px 0 8px;
  font-size: 19px;
  font-weight: 800;
  color: var(--chalk);
}

.page-about .timeline-text {
  max-width: 44ch;
  margin: 0;
  font-size: 16px;
  line-height: 1.9;
  color: var(--mist);
}

/* ---------- 章节 06：收尾 ---------- */

.page-about .pledge-list--two {
  margin-top: clamp(28px, 3vw, 44px);
}

.page-about .about-cta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
}

/* ---------- 响应式 ---------- */

@media (min-width: 620px) {
  .page-about .hero-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 760px) {
  .page-about .pledge-list:not(.pledge-list--two) {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-about .pledge-list:not(.pledge-list--two) .pledge:nth-child(2) {
    margin-top: 28px;
  }

  .page-about .pledge-list:not(.pledge-list--two) .pledge:nth-child(3) {
    margin-top: 56px;
  }

  .page-about .pledge-list--two {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 860px) {
  .page-about .hero-frame {
    grid-template-columns: 68px minmax(0, 1fr);
    align-items: start;
  }

  .page-about .hero-side {
    flex-direction: column;
    align-items: flex-start;
    padding-top: 6px;
  }

  .page-about .hero-word {
    writing-mode: vertical-rl;
    letter-spacing: 0.42em;
  }
}

@media (min-width: 900px) {
  .page-about .about-grid {
    grid-template-columns: minmax(0, 1.5fr) minmax(0, 0.85fr);
    align-items: start;
  }

  .page-about .about-grid--flip {
    grid-template-columns: minmax(200px, 0.62fr) minmax(0, 1.38fr);
  }

  .page-about .about-note {
    position: sticky;
    top: calc(var(--header-h) + 28px);
  }

  .page-about .team-bar-detail {
    max-height: 0;
    margin-top: 0;
    overflow: hidden;
    opacity: 0;
    transition: max-height 0.32s var(--ease), opacity 0.32s var(--ease), margin-top 0.32s var(--ease);
  }

  .page-about .team-bar:hover .team-bar-detail,
  .page-about .team-bar:focus-within .team-bar-detail,
  .page-about .team-bar:focus-visible .team-bar-detail {
    max-height: 90px;
    margin-top: 10px;
    opacity: 1;
  }
}

@media (min-width: 980px) {
  .page-about .about-lead {
    grid-template-columns: minmax(0, 1.5fr) minmax(0, 0.9fr);
    align-items: start;
  }
}

@media (min-width: 1200px) {
  .page-about .lead-visual {
    padding: 20px;
  }

  .page-about .timeline {
    padding-left: 44px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-about .pledge,
  .page-about .team-bar,
  .page-about .team-bar-fill,
  .page-about .timeline-item::before,
  .page-about .inline-link {
    transition: none;
  }

  .page-about .pledge:hover {
    transform: none;
  }

  .page-about .timeline-item:hover::before {
    transform: none;
  }
}

.page-about {
  --w: 1rem;
}