/* =========================================================
   品牌价值页 · 页面专属样式（作用域 .page-about）
   ========================================================= */

.page-about {
  --ab-pad: clamp(52px, 7.5vw, 104px);
  --ab-cut: 22px;
  position: relative;
  isolation: isolate;
  overflow-x: hidden;
  background-color: var(--c-green);
  color: var(--c-white);
}

.page-about .num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
}

/* ---------------- 面包屑 ---------------- */
.page-about .about-crumbs {
  padding: 20px 0 4px;
}

.page-about .breadcrumbs__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--c-mist);
}

.page-about .breadcrumbs__list li {
  display: flex;
  align-items: center;
}

.page-about .breadcrumbs__list li + li::before {
  content: "";
  width: 16px;
  height: 1px;
  margin: 0 10px;
  background: var(--line-strong);
}

.page-about .breadcrumbs__list a {
  color: var(--c-mist);
  text-decoration: none;
  transition: color var(--dur) var(--ease);
}

.page-about .breadcrumbs__list a:hover,
.page-about .breadcrumbs__list a:focus-visible {
  color: var(--c-cyan);
}

.page-about .breadcrumbs__list [aria-current="page"] {
  color: var(--c-white);
  font-weight: 700;
}

/* ---------------- 首屏 ---------------- */
.page-about .about-hero {
  position: relative;
  padding: clamp(28px, 4vw, 52px) 0 clamp(56px, 8vw, 104px);
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  inset: -10% -10% 0 -10%;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(680px 360px at 78% 26%, rgba(53, 224, 196, 0.12), transparent 68%),
    radial-gradient(520px 320px at 6% 4%, rgba(18, 54, 92, 0.55), transparent 70%);
}

.page-about .about-hero__grid {
  display: grid;
  gap: clamp(28px, 4vw, 52px);
  align-items: center;
}

.page-about .about-hero__kicker {
  display: inline-flex;
  align-items: center;
  margin: 0 0 20px;
  padding: 6px 14px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: rgba(53, 224, 196, 0.06);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.24em;
  color: var(--c-cyan);
}

.page-about .about-hero__title {
  margin: 0 0 20px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(28px, 5.4vw, 52px);
  line-height: 1.18;
  letter-spacing: -0.012em;
  color: var(--c-white);
  text-wrap: balance;
}

.page-about .about-hero__brand {
  color: var(--c-cyan);
}

.page-about .about-hero__lead {
  max-width: 54ch;
  margin: 0 0 30px;
  font-size: 15px;
  line-height: 1.9;
  color: rgba(234, 243, 240, 0.82);
}

.page-about .about-hero__stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(132px, 1fr));
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.page-about .about-hero__stat {
  padding: 15px 16px 17px;
  background: rgba(5, 23, 19, 0.84);
}

.page-about .about-hero__stat b {
  display: block;
  font-size: clamp(22px, 3vw, 30px);
  font-weight: 700;
  line-height: 1.1;
  color: var(--c-amber);
}

.page-about .about-hero__stat span {
  display: block;
  margin-top: 7px;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--c-mist);
}

.page-about .about-hero__figure {
  position: relative;
  margin: 0;
  background: var(--c-ink);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--ab-cut)), calc(100% - var(--ab-cut)) 100%, 0 100%);
}

.page-about .about-hero__figure::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 92px;
  height: 3px;
  background: var(--c-amber);
}

.page-about .about-hero__figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  filter: saturate(0.6) contrast(1.05) brightness(0.84);
}

@media (min-width: 920px) {
  .page-about .about-hero__grid {
    grid-template-columns: minmax(0, 1.06fr) minmax(0, 0.94fr);
    gap: clamp(36px, 5vw, 72px);
  }
}

/* ---------------- 章节通用 ---------------- */
.page-about .about-sec {
  position: relative;
  padding: var(--ab-pad) 0;
}

.page-about .about-sec + .about-sec {
  border-top: 1px solid var(--line);
}

.page-about .about-sec .section-head {
  position: relative;
  max-width: 72ch;
  margin: 0 0 clamp(24px, 3.4vw, 40px);
}

.page-about .section-head__num {
  position: absolute;
  top: -0.16em;
  right: 0;
  z-index: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(72px, 14vw, 156px);
  line-height: 1;
  letter-spacing: -0.05em;
  color: rgba(53, 224, 196, 0.08);
  pointer-events: none;
  user-select: none;
}

.page-about .section-head__kicker {
  position: relative;
  z-index: 1;
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.26em;
  color: var(--c-amber);
}

.page-about .section-head__title {
  position: relative;
  z-index: 1;
  margin: 0 0 14px;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(24px, 3.6vw, 34px);
  line-height: 1.32;
  color: var(--c-white);
  text-wrap: balance;
}

.page-about .section-head__lead {
  position: relative;
  z-index: 1;
  max-width: 46ch;
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--c-cyan);
}

.page-about .about-sec__body {
  position: relative;
  z-index: 1;
  max-width: 68ch;
  margin-top: clamp(20px, 3vw, 32px);
}

.page-about .about-sec__body p {
  margin: 0 0 1.1em;
  font-size: 15px;
  line-height: 1.9;
  color: rgba(234, 243, 240, 0.8);
}

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

.page-about .about-sec__body a {
  color: var(--c-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 224, 196, 0.42);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-about .about-sec__body a:hover,
.page-about .about-sec__body a:focus-visible {
  color: var(--c-white);
  border-bottom-color: var(--c-white);
}

.page-about .about-sec__note {
  max-width: 72ch;
  margin: clamp(22px, 3vw, 32px) 0 0;
  padding: 16px 20px;
  border-left: 2px solid var(--c-cyan);
  background: rgba(18, 54, 92, 0.22);
  font-size: 14px;
  line-height: 1.85;
  color: rgba(234, 243, 240, 0.8);
}

.page-about .about-sec__note b {
  color: var(--c-amber);
  font-weight: 700;
}

.page-about .about-sec__note a {
  color: var(--c-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 224, 196, 0.42);
}

.page-about .about-sec__note a:hover,
.page-about .about-sec__note a:focus-visible {
  color: var(--c-white);
}

/* ---------------- 球队条目五段式 ---------------- */
.page-about .entity {
  margin: clamp(26px, 4vw, 40px) 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line-strong);
}

.page-about .entity__seg {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 0 16px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
  transition: background-color var(--dur) var(--ease), padding-left var(--dur) var(--ease);
}

.page-about .entity__idx {
  padding-top: 3px;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--c-cyan);
}

.page-about .entity__name {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 700;
  color: var(--c-white);
}

.page-about .entity__brief {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--c-mist);
}

.page-about .entity__detail {
  display: grid;
  grid-template-rows: 1fr;
}

.page-about .entity__detail-in {
  overflow: hidden;
  padding-top: 12px;
}

.page-about .entity__detail-in p {
  margin: 0;
  padding-left: 14px;
  border-left: 2px solid rgba(53, 224, 196, 0.5);
  font-size: 13.5px;
  line-height: 1.85;
  color: rgba(234, 243, 240, 0.74);
}

@media (min-width: 720px) {
  .page-about .entity__seg {
    grid-template-columns: 64px minmax(0, 1fr);
    gap: 0 22px;
    padding: 22px 0;
  }
}

@media (hover: hover) and (min-width: 900px) {
  .page-about .entity__seg:hover {
    padding-left: 12px;
    background: linear-gradient(90deg, rgba(53, 224, 196, 0.07), transparent 72%);
  }

  .page-about .entity__detail {
    grid-template-rows: 0fr;
    opacity: 0;
    transition: grid-template-rows 0.34s var(--ease), opacity 0.34s var(--ease);
  }

  .page-about .entity__seg:hover .entity__detail,
  .page-about .entity__seg:focus-within .entity__detail {
    grid-template-rows: 1fr;
    opacity: 1;
  }
}

/* ---------------- 轮次轴 ---------------- */
.page-about .rounds__layout {
  display: grid;
  gap: clamp(28px, 4vw, 48px);
}

.page-about .round-axis {
  position: relative;
  padding: 24px 22px 20px;
  border: 1px solid var(--line);
  background: linear-gradient(150deg, rgba(18, 54, 92, 0.5), rgba(5, 23, 19, 0.72));
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--ab-cut)), calc(100% - var(--ab-cut)) 100%, 0 100%);
}

.page-about .round-axis__svg {
  display: block;
  width: 100%;
  height: auto;
}

.page-about .round-axis__dots circle {
  fill: rgba(53, 224, 196, 0.5);
}

.page-about .round-axis__now {
  fill: var(--c-amber);
}

.page-about .round-axis__cap {
  fill: rgba(147, 168, 162, 0.9);
  font-family: var(--font-mono);
  font-size: 15px;
  letter-spacing: 0.16em;
}

.page-about .round-axis__cap--end {
  fill: var(--c-amber);
}

.page-about .round-axis__foot {
  margin: 12px 0 0;
  font-size: 13px;
  line-height: 1.8;
  color: var(--c-mist);
}

@media (min-width: 960px) {
  .page-about .rounds__layout {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.86fr);
    align-items: center;
  }
}

/* ---------------- 字段行 ---------------- */
.page-about .field-rows {
  display: grid;
  gap: 0;
  margin: clamp(26px, 4vw, 38px) 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line-strong);
}

.page-about .field-rows__item {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding: 13px 0;
  border-bottom: 1px solid var(--line);
  font-size: 14px;
}

.page-about .field-rows__name {
  font-weight: 700;
  color: var(--c-white);
}

.page-about .field-rows__val {
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--c-amber);
  text-align: right;
}

@media (min-width: 760px) {
  .page-about .field-rows {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: clamp(28px, 4vw, 56px);
  }
}

/* ---------------- 流程 ---------------- */
.page-about .flow-banner {
  position: relative;
  margin: 0 0 clamp(26px, 4vw, 40px);
  background: var(--c-ink);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--ab-cut)), calc(100% - var(--ab-cut)) 100%, 0 100%);
}

.page-about .flow-banner img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 16 / 7;
  object-fit: cover;
  filter: saturate(0.5) contrast(1.08) brightness(0.76);
}

.page-about .flow {
  display: grid;
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.page-about .flow__step {
  position: relative;
  padding: 22px 20px 24px;
  background: rgba(5, 23, 19, 0.8);
  transition: background-color var(--dur) var(--ease);
}

.page-about .flow__step:hover {
  background: rgba(18, 54, 92, 0.5);
}

.page-about .flow__no {
  display: block;
  margin-bottom: 14px;
  font-size: 12px;
  letter-spacing: 0.22em;
  color: var(--c-amber);
}

.page-about .flow__step h3 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 700;
  color: var(--c-white);
}

.page-about .flow__step p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.85;
  color: var(--c-mist);
}

@media (min-width: 700px) {
  .page-about .flow {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1080px) {
  .page-about .flow {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-about .flow__step:not(:last-child)::after {
    content: "";
    position: absolute;
    top: 36px;
    right: -12px;
    z-index: 2;
    width: 24px;
    height: 1px;
    background: var(--c-cyan);
    opacity: 0.55;
    transform: rotate(-22deg);
  }
}

/* ---------------- 团队 ---------------- */
.page-about .crew {
  display: grid;
  gap: clamp(30px, 4vw, 52px);
}

.page-about .dotmap {
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  gap: 8px;
  max-width: 336px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-about .dotmap__d {
  aspect-ratio: 1 / 1;
  border-radius: 3px;
  background: var(--c-cyan);
  opacity: 0.85;
}

.page-about .dotmap__d--check {
  background: var(--c-amber);
  opacity: 0.9;
}

.page-about .crew__legend {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 24px;
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
  font-size: 13px;
  color: var(--c-mist);
}

.page-about .crew__legend b {
  color: var(--c-white);
  font-weight: 700;
}

.page-about .crew__swatch {
  display: inline-block;
  width: 10px;
  height: 10px;
  margin-right: 8px;
  border-radius: 2px;
  background: var(--c-cyan);
}

.page-about .crew__swatch--check {
  background: var(--c-amber);
}

.page-about .crew__groups {
  display: grid;
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.page-about .crew__group {
  padding: 20px 22px;
  background: rgba(5, 23, 19, 0.74);
  transition: background-color var(--dur) var(--ease);
}

.page-about .crew__group:hover {
  background: rgba(18, 54, 92, 0.46);
}

.page-about .crew__group h3 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 700;
  color: var(--c-white);
}

.page-about .crew__group p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.85;
  color: var(--c-mist);
}

@media (min-width: 960px) {
  .page-about .crew {
    grid-template-columns: minmax(0, 0.86fr) minmax(0, 1.14fr);
    align-items: start;
  }
}

/* ---------------- 发展节点 ---------------- */
.page-about .journey-banner {
  position: relative;
  margin: 0 0 clamp(30px, 4.4vw, 48px);
  background: var(--c-ink);
  clip-path: polygon(0 0, calc(100% - var(--ab-cut)) 0, 100% var(--ab-cut), 100% 100%, 0 100%);
}

.page-about .journey-banner img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  filter: saturate(0.42) contrast(1.1) brightness(0.7);
}

.page-about .timeline {
  position: relative;
  margin: 0;
  padding: 0 0 0 28px;
  list-style: none;
  border-left: 1px solid var(--line-strong);
}

.page-about .timeline__item {
  position: relative;
  padding-bottom: clamp(28px, 4vw, 42px);
}

.page-about .timeline__item:last-child {
  padding-bottom: 0;
}

.page-about .timeline__marker {
  position: absolute;
  left: -34px;
  top: 6px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--c-green);
  border: 2px solid var(--c-cyan);
}

.page-about .timeline__item:nth-child(2) .timeline__marker {
  border-color: var(--c-amber);
}

.page-about .timeline__item:nth-child(3) .timeline__marker {
  border-color: var(--c-emerald);
}

.page-about .timeline__phase {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.24em;
  color: var(--c-cyan);
}

.page-about .timeline__item h3 {
  margin: 0 0 10px;
  font-family: var(--font-serif);
  font-size: 19px;
  font-weight: 700;
  line-height: 1.45;
  color: var(--c-white);
}

.page-about .timeline__item p {
  max-width: 64ch;
  margin: 0;
  font-size: 14.5px;
  line-height: 1.9;
  color: rgba(234, 243, 240, 0.78);
}

/* ---------------- 合作生态 ---------------- */
.page-about .partner {
  display: grid;
  gap: 1px;
  margin-top: clamp(24px, 3.4vw, 36px);
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.page-about .partner__cell {
  padding: 22px 22px 24px;
  background: rgba(5, 23, 19, 0.74);
  transition: background-color var(--dur) var(--ease);
}

.page-about .partner__cell:hover {
  background: rgba(18, 54, 92, 0.46);
}

.page-about .partner__num {
  display: block;
  margin-bottom: 12px;
  font-size: clamp(30px, 4.6vw, 44px);
  font-weight: 700;
  line-height: 1;
  color: var(--c-amber);
}

.page-about .partner__cell h3 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 700;
  color: var(--c-white);
}

.page-about .partner__cell p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.85;
  color: var(--c-mist);
}

.page-about .partner__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: clamp(20px, 3vw, 28px) 0 0;
  padding: 0;
  list-style: none;
}

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

/* ---------------- 结尾引导 ---------------- */
.page-about .about-cta {
  position: relative;
  margin-top: clamp(40px, 6vw, 80px);
  padding: clamp(40px, 6vw, 72px) 0;
  border-top: 1px solid var(--line-strong);
  background: linear-gradient(135deg, var(--c-blue) 0%, #0b2744 54%, var(--c-ink) 100%);
}

.page-about .about-cta__inner {
  display: grid;
  gap: clamp(24px, 3.4vw, 40px);
}

.page-about .about-cta h2 {
  margin: 0 0 12px;
  font-family: var(--font-serif);
  font-size: clamp(24px, 3.4vw, 32px);
  font-weight: 700;
  line-height: 1.35;
  color: var(--c-white);
}

.page-about .about-cta p {
  max-width: 52ch;
  margin: 0;
  font-size: 15px;
  line-height: 1.9;
  color: rgba(234, 243, 240, 0.82);
}

.page-about .about-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

@media (min-width: 860px) {
  .page-about .about-cta__inner {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr);
    align-items: center;
  }

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

/* ---------------- 无障碍与动效降级 ---------------- */
@media (prefers-reduced-motion: reduce) {
  .page-about *,
  .page-about *::before,
  .page-about *::after {
    transition-duration: 0.001ms !important;
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
  }

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