/* ============================================================
   品牌档案 /profile/ —— 页面作用域 .page-about
   ============================================================ */

.page-about {
  display: block;
  background: var(--ink);
  color: var(--mist);
  font-family: var(--font-sans);
  overflow-x: clip;
}

.page-about .about-shell {
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: 20px;
}

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

/* ---------- 面包屑 ---------- */

.page-about .about-crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding-top: 22px;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--slate);
}

.page-about .about-crumbs a {
  color: var(--slate);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 180ms ease, border-color 180ms ease;
}

.page-about .about-crumbs a:hover,
.page-about .about-crumbs a:focus-visible {
  color: var(--lime);
  border-bottom-color: var(--lime);
}

.page-about .about-crumbs-sep {
  color: var(--hair-strong);
}

.page-about .about-crumbs [aria-current="page"] {
  color: var(--mist);
}

/* ---------- 首屏 ---------- */

.page-about .about-hero {
  position: relative;
  padding-top: 44px;
  padding-bottom: 56px;
}

.page-about .about-hero::after {
  content: "";
  position: absolute;
  top: -180px;
  right: -140px;
  width: min(660px, 92vw);
  height: min(660px, 92vw);
  background:
    radial-gradient(closest-side, rgba(182, 255, 59, 0.15), rgba(182, 255, 59, 0) 72%),
    radial-gradient(closest-side at 32% 68%, rgba(255, 122, 60, 0.13), rgba(255, 122, 60, 0) 70%);
  pointer-events: none;
  z-index: 0;
}

.page-about .about-hero > * {
  position: relative;
  z-index: 1;
}

.page-about .about-hero h1 {
  margin: 16px 0 0;
  font-family: var(--font-serif);
  font-size: clamp(30px, 6.4vw, 56px);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.012em;
  color: var(--mist);
  max-width: 20em;
}

.page-about .about-hero-lede {
  margin: 22px 0 0;
  max-width: 36em;
  font-size: 17px;
  line-height: 1.85;
  color: var(--mist);
}

.page-about .about-hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
}

.page-about .about-hero-tags li {
  padding: 6px 12px;
  border: 1px solid var(--hair);
  border-radius: var(--r);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--slate);
  background: rgba(15, 53, 41, 0.55);
}

/* ---------- 起步叙事 ---------- */

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

.page-about .about-start-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 36px;
}

.page-about .about-start-main h2 {
  margin: 0 0 20px;
  font-family: var(--font-serif);
  font-size: clamp(24px, 4.6vw, 32px);
  font-weight: 700;
  line-height: 1.32;
  letter-spacing: -0.008em;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--hair);
}

.page-about .about-start-main p {
  margin: 0 0 20px;
  max-width: 34em;
  font-size: 16px;
  line-height: 1.85;
  color: #d5e2da;
}

.page-about .about-pull {
  margin-top: 28px !important;
  padding: 18px 20px;
  border-left: 2px solid var(--lime);
  background: rgba(4, 18, 14, 0.5);
  font-family: var(--font-serif);
  font-size: 17px;
  line-height: 1.7;
  color: var(--mist);
}

.page-about .about-start-side {
  display: grid;
  gap: 22px;
  align-content: start;
}

.page-about .about-figure {
  margin: 0;
  border: 1px solid var(--hair);
  border-radius: var(--r);
  overflow: hidden;
  background: var(--deep);
  box-shadow: var(--shadow);
}

.page-about .about-figure img {
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.page-about .about-figure-cap {
  padding: 12px 16px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--slate);
  border-top: 1px solid var(--hair-soft);
}

.page-about .about-quick {
  padding: 20px;
  border: 1px solid var(--hair);
  border-radius: var(--r);
  background: var(--navy);
  box-shadow: var(--shadow);
}

.page-about .about-quick-title {
  margin: 0 0 16px;
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--slate);
}

.page-about .about-quick-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .about-quick-list li {
  display: grid;
  gap: 4px;
  padding: 14px 0;
  border-top: 1px solid var(--hair-soft);
}

.page-about .about-quick-list li:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-about .about-quick-num {
  font-family: var(--font-num);
  font-size: 40px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0.01em;
  color: var(--lime);
  font-variant-numeric: tabular-nums;
}

.page-about .about-quick-num em {
  margin-left: 3px;
  font-style: normal;
  font-size: 15px;
  font-family: var(--font-sans);
  color: var(--slate);
}

.page-about .about-quick-text {
  font-size: 13px;
  line-height: 1.7;
  color: var(--slate);
}

/* ---------- 通用分区标题行 ---------- */

.page-about .about-head {
  display: grid;
  gap: 10px;
  padding-bottom: 18px;
  margin-bottom: 32px;
  border-bottom: 1px solid var(--hair);
}

.page-about .about-head h2 {
  margin: 0;
  font-family: var(--font-serif);
  font-size: clamp(24px, 4.6vw, 32px);
  font-weight: 700;
  line-height: 1.32;
  letter-spacing: -0.008em;
}

.page-about .about-head-note {
  margin: 0;
  max-width: 36em;
  font-size: 14px;
  line-height: 1.7;
  color: var(--slate);
}

/* ---------- 三条业务线 ---------- */

.page-about .about-lines-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 20px;
}

.page-about .about-line-item {
  position: relative;
  padding: 26px 22px 24px;
  border: 1px solid var(--hair);
  border-radius: var(--r);
  background: var(--pitch);
  box-shadow: var(--shadow);
  transition: transform 180ms ease, border-color 180ms ease;
}

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

.page-about .about-line-idx {
  display: inline-block;
  font-family: var(--font-num);
  font-size: 30px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0.04em;
  color: var(--orange);
  font-variant-numeric: tabular-nums;
}

.page-about .about-line-title {
  margin: 12px 0 12px;
  font-size: 20px;
  font-weight: 700;
  line-height: 1.4;
  letter-spacing: 0.005em;
  color: var(--mist);
}

.page-about .about-line-item p {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: #cfdcd5;
}

/* ---------- 团队分工 ---------- */

.page-about .about-roster {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--hair);
}

.page-about .about-roster-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  grid-template-areas:
    "role count"
    "desc desc";
  gap: 8px 16px;
  padding: 18px 0;
  border-bottom: 1px solid var(--hair);
  transition: border-color 180ms ease;
}

.page-about .about-roster-row:hover {
  border-bottom-color: var(--lime);
}

.page-about .about-roster-role {
  grid-area: role;
  align-self: center;
  font-size: 16px;
  font-weight: 600;
  letter-spacing: 0.01em;
  color: var(--mist);
}

.page-about .about-roster-count {
  grid-area: count;
  font-family: var(--font-num);
  font-size: 34px;
  font-weight: 700;
  line-height: 1;
  color: var(--lime);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.page-about .about-roster-count em {
  margin-left: 3px;
  font-style: normal;
  font-family: var(--font-sans);
  font-size: 13px;
  color: var(--slate);
}

.page-about .about-roster-desc {
  grid-area: desc;
  font-size: 14px;
  line-height: 1.75;
  color: var(--slate);
}

.page-about .about-team-note {
  margin: 24px 0 0;
  max-width: 36em;
  font-size: 14px;
  line-height: 1.8;
  color: var(--slate);
}

/* ---------- 内容流程（纸感浅色区） ---------- */

.page-about .about-flow {
  color: #17251f;
}

.page-about .about-flow-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
}

.page-about .about-figure--paper {
  border-color: rgba(11, 27, 38, 0.16);
  background: #dcdacd;
  box-shadow: 0 8px 24px rgba(4, 18, 14, 0.14);
}

.page-about .about-figure--paper .about-figure-cap {
  color: #4a5a53;
  border-top-color: rgba(11, 27, 38, 0.12);
}

.page-about .about-flow-body h2 {
  margin: 0 0 14px;
  font-family: var(--font-serif);
  font-size: clamp(24px, 4.6vw, 32px);
  font-weight: 700;
  line-height: 1.32;
  letter-spacing: -0.008em;
  color: #10201a;
  padding-bottom: 14px;
  border-bottom: 1px solid rgba(11, 27, 38, 0.18);
}

.page-about .about-flow-lede {
  margin: 0 0 26px;
  max-width: 34em;
  font-size: 15px;
  line-height: 1.85;
  color: #3d4f47;
}

.page-about .about-flow-steps {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: flow;
  display: grid;
  gap: 18px;
}

.page-about .about-flow-steps li {
  position: relative;
  padding-left: 26px;
  border-left: 1px solid rgba(11, 27, 38, 0.16);
}

.page-about .about-flow-steps li::before {
  content: "";
  position: absolute;
  left: -4px;
  top: 6px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #0f3529;
}

.page-about .about-flow-no {
  display: block;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: #6c7c74;
}

.page-about .about-flow-steps h3 {
  margin: 6px 0 6px;
  font-size: 18px;
  font-weight: 700;
  line-height: 1.4;
  color: #10201a;
}

.page-about .about-flow-steps p {
  margin: 0;
  max-width: 34em;
  font-size: 15px;
  line-height: 1.8;
  color: #3d4f47;
}

/* ---------- 赛季时间轴 ---------- */

.page-about .about-tl {
  display: block;
}

.page-about .about-tl-track {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .about-tl-node {
  display: block;
  width: 100%;
  padding: 14px 14px 15px;
  text-align: left;
  font: inherit;
  color: var(--mist);
  background: var(--pitch);
  border: 1px solid var(--hair);
  border-left: 2px solid transparent;
  border-radius: var(--r);
  cursor: pointer;
  transition: transform 180ms ease, border-color 180ms ease, background-color 180ms ease;
}

.page-about .about-tl-node:hover {
  transform: translateY(-4px);
  border-color: var(--lime);
}

.page-about .about-tl-node:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: 2px;
}

.page-about .about-tl-node[aria-selected="true"] {
  background: #14432f;
  border-color: var(--hair);
  border-left-color: var(--lime);
}

.page-about .about-tl-ver {
  display: block;
  font-family: var(--font-num);
  font-size: 17px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--orange);
  font-variant-numeric: tabular-nums;
}

.page-about .about-tl-node[aria-selected="true"] .about-tl-ver {
  color: var(--lime);
}

.page-about .about-tl-name {
  display: block;
  margin-top: 6px;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.page-about .about-tl-panels {
  margin-top: 26px;
  padding-top: 24px;
  border-top: 1px solid var(--hair);
}

.page-about .about-tl-panel {
  display: block;
}

.page-about .about-tl-panel h3 {
  margin: 0 0 12px;
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--mist);
}

.page-about .about-tl-panel p {
  margin: 0;
  max-width: 34em;
  font-size: 15px;
  line-height: 1.85;
  color: #cfdcd5;
}

.page-about .js .about-tl-panel {
  display: none;
}

.page-about .js .about-tl-panel.is-active {
  display: block;
}

/* ---------- 合作机构 ---------- */

.page-about .about-partners-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
}

.page-about .about-partners-body h2 {
  margin: 0 0 18px;
  font-family: var(--font-serif);
  font-size: clamp(24px, 4.6vw, 32px);
  font-weight: 700;
  line-height: 1.32;
  letter-spacing: -0.008em;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--hair);
}

.page-about .about-partners-body p {
  margin: 0 0 18px;
  max-width: 34em;
  font-size: 16px;
  line-height: 1.85;
  color: #d5e2da;
}

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

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

/* ---------- 服务范围 ---------- */

.page-about .about-reach-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
}

.page-about .about-reach-card {
  padding: 24px 22px;
  border: 1px solid var(--hair);
  border-radius: var(--r);
  background: var(--navy);
  transition: transform 180ms ease, border-color 180ms ease;
}

.page-about .about-reach-card:hover {
  transform: translateY(-4px);
  border-color: var(--lime);
}

.page-about .about-reach-card h3 {
  margin: 0 0 12px;
  font-size: 19px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--mist);
}

.page-about .about-reach-card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--slate);
}

.page-about .about-reach-note {
  margin: 26px 0 0;
  max-width: 38em;
  font-size: 14px;
  line-height: 1.8;
  color: var(--slate);
}

/* ---------- 收束动作块 ---------- */

.page-about .about-cta-box {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  padding: 30px 24px;
  border: 1px solid var(--hair-strong);
  border-radius: var(--r);
  background: linear-gradient(140deg, rgba(15, 53, 41, 0.95) 0%, rgba(11, 27, 38, 0.95) 62%, rgba(8, 32, 26, 0.95) 100%);
  box-shadow: var(--shadow);
}

.page-about .about-cta-text h2 {
  margin: 0 0 12px;
  font-family: var(--font-serif);
  font-size: clamp(23px, 4.4vw, 30px);
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: -0.008em;
  color: var(--mist);
}

.page-about .about-cta-text p {
  margin: 0;
  max-width: 34em;
  font-size: 15px;
  line-height: 1.85;
  color: #cfdcd5;
}

.page-about .about-cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-content: center;
}

.page-about .about-cta-foot {
  margin: 20px 0 0;
  font-size: 14px;
  line-height: 1.9;
  color: var(--slate);
}

.page-about .about-cta-foot a {
  color: var(--lime);
  text-decoration: none;
  border-bottom: 1px solid rgba(182, 255, 59, 0.4);
  transition: border-color 180ms ease;
}

.page-about .about-cta-foot a:hover,
.page-about .about-cta-foot a:focus-visible {
  border-bottom-color: var(--lime);
}

/* ---------- 进入视口显现 ---------- */

.page-about [data-reveal] {
  opacity: 1;
}

.page-about .js [data-reveal] {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 400ms ease, transform 400ms ease;
}

.page-about .js [data-reveal].is-visible {
  opacity: 1;
  transform: none;
}

/* ---------- 平板及以上 ---------- */

@media (min-width: 768px) {
  .page-about .about-shell {
    padding-inline: 32px;
  }

  .page-about .about-hero {
    padding-top: 60px;
    padding-bottom: 72px;
  }

  .page-about .about-start-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 40px;
    align-items: start;
  }

  .page-about .about-start-side {
    position: sticky;
    top: calc(var(--header-h) + 24px);
  }

  .page-about .about-head {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: end;
    gap: 24px;
  }

  .page-about .about-lines-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
  }

  .page-about .about-roster-row {
    grid-template-columns: minmax(0, 210px) 120px minmax(0, 1fr);
    grid-template-areas: "role count desc";
    align-items: baseline;
    gap: 28px;
    padding: 22px 0;
  }

  .page-about .about-roster-role {
    font-size: 17px;
  }

  .page-about .about-roster-count {
    font-size: 38px;
  }

  .page-about .about-flow-grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: 44px;
    align-items: start;
  }

  .page-about .about-flow-steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 24px 28px;
  }

  .page-about .about-tl-track {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 12px;
  }

  .page-about .about-tl-node {
    padding: 16px 16px 18px;
  }

  .page-about .about-partners-grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 6fr);
    gap: 44px;
    align-items: center;
  }

  .page-about .about-reach-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
  }

  .page-about .about-cta-box {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 32px;
    padding: 36px 32px;
    align-items: center;
  }

  .page-about .about-cta-actions {
    justify-content: flex-end;
  }
}

/* ---------- 桌面宽屏 ---------- */

@media (min-width: 1080px) {
  .page-about .about-hero h1 {
    max-width: 17em;
  }

  .page-about .about-start-main p {
    font-size: 17px;
  }

  .page-about .about-pull {
    max-width: 32em;
  }
}

/* ---------- 动效偏好 ---------- */

@media (prefers-reduced-motion: reduce) {
  .page-about *,
  .page-about *::before,
  .page-about *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }

  .page-about .js [data-reveal] {
    opacity: 1;
    transform: none;
  }
}