.page-about {
  background: var(--c-cream);
  color: var(--c-ink);
  overflow-x: hidden;
}

.page-about .about-kicker {
  font-family: var(--font-data);
  font-size: 0.76rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--c-amber);
  margin: 0 0 0.6rem;
  font-weight: 600;
}

.page-about .about-kicker--light {
  color: var(--c-mint);
}

.page-about .about-kicker--amber {
  color: var(--c-amber);
}

/* ---------- Hero ---------- */
.page-about .about-hero {
  position: relative;
  background: var(--c-night);
  color: var(--c-cream);
  padding: 2rem 0 3.5rem;
  overflow: hidden;
}

.page-about .about-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(0, 212, 170, 0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 212, 170, 0.07) 1px, transparent 1px);
  background-size: 26px 26px;
  pointer-events: none;
}

.page-about .about-hero::after {
  content: "";
  position: absolute;
  right: -40px;
  top: 0;
  width: 220px;
  height: 280px;
  background: linear-gradient(135deg, rgba(138, 43, 226, 0.5), rgba(138, 43, 226, 0.04));
  clip-path: polygon(100% 0, 0 0, 100% 100%);
  pointer-events: none;
}

.page-about .about-hero .breadcrumb {
  position: relative;
  z-index: 2;
  margin-bottom: 2rem;
}

.page-about .about-hero .breadcrumb a {
  color: rgba(245, 241, 232, 0.72);
  text-decoration: none;
  font-size: 0.85rem;
}

.page-about .about-hero .breadcrumb a:hover {
  color: var(--c-mint);
}

.page-about .about-hero .breadcrumb__sep {
  margin: 0 0.5rem;
  color: var(--c-slate);
}

.page-about .about-hero .breadcrumb span:last-child {
  color: var(--c-cream);
  font-size: 0.85rem;
}

.page-about .about-hero__grid {
  position: relative;
  z-index: 2;
  display: grid;
  gap: 2.2rem;
}

.page-about .about-hero__title {
  font-family: var(--font-headline);
  font-size: clamp(2.3rem, 6vw, 4.4rem);
  font-weight: 700;
  line-height: 1.02;
  letter-spacing: -0.02em;
  margin: 0.4rem 0 1rem;
  color: var(--c-cream);
  text-shadow: 0 0 26px rgba(0, 212, 170, 0.22);
}

.page-about .about-hero__lead {
  font-family: var(--font-body);
  font-size: 1.05rem;
  line-height: 1.75;
  color: rgba(245, 241, 232, 0.85);
  max-width: 40rem;
  margin: 0 0 1.6rem;
}

.page-about .about-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.page-about .about-hero__actions .btn--primary {
  background: var(--c-amber);
  border: 1px solid var(--c-amber);
  color: var(--c-night);
  text-decoration: none;
  padding: 0.65rem 1.2rem;
  border-radius: var(--radius-sm);
  font-family: var(--font-data);
  font-size: 0.82rem;
  transition: transform 0.2s, box-shadow 0.2s;
}

.page-about .about-hero__actions .btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 18px rgba(255, 158, 0, 0.35);
}

.page-about .about-hero__actions .btn--ghost {
  background: transparent;
  border: 1px solid rgba(245, 241, 232, 0.5);
  color: var(--c-cream);
  text-decoration: none;
  padding: 0.65rem 1.2rem;
  border-radius: var(--radius-sm);
  font-family: var(--font-data);
  font-size: 0.82rem;
  transition: border-color 0.2s, background 0.2s;
}

.page-about .about-hero__actions .btn--ghost:hover {
  border-color: var(--c-mint);
  background: rgba(0, 212, 170, 0.08);
}

.page-about .about-hero__meta {
  position: relative;
  z-index: 2;
}

.page-about .about-hero__facts {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem;
}

.page-about .about-hero__fact {
  background: rgba(245, 241, 232, 0.06);
  border: 1px solid rgba(0, 212, 170, 0.18);
  border-left: 3px solid var(--c-neon);
  border-radius: var(--radius-sm);
  padding: 0.9rem 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  box-shadow: 0 0 16px rgba(138, 43, 226, 0.12);
}

.page-about .about-hero__fact-num {
  font-family: var(--font-headline);
  font-size: 1.65rem;
  font-weight: 700;
  color: var(--c-cream);
  line-height: 1;
}

.page-about .about-hero__fact-label {
  font-family: var(--font-data);
  font-size: 0.72rem;
  color: rgba(245, 241, 232, 0.68);
  letter-spacing: 0.04em;
}

/* ---------- Mission ---------- */
.page-about .about-mission {
  position: relative;
  background: var(--c-cream);
  padding: 4rem 0 3.2rem;
}

.page-about .about-mission::before {
  content: "";
  display: block;
  height: 6px;
  background: linear-gradient(90deg, var(--c-green) 0 36%, var(--c-neon) 36% 64%, var(--c-amber) 64% 100%);
  border-radius: var(--radius-sm);
  margin-bottom: 2.4rem;
}

.page-about .about-mission__grid {
  display: grid;
  gap: 2.5rem;
}

.page-about .about-mission__body h2,
.page-about .about-timeline__head h2,
.page-about .about-data__head h2,
.page-about .about-security h2,
.page-about .about-cta h2 {
  font-family: var(--font-headline);
  font-size: clamp(1.45rem, 2.6vw, 2.1rem);
  line-height: 1.18;
  margin: 0 0 1rem;
  color: inherit;
}

.page-about .about-mission__body p,
.page-about .about-mission__body,
.page-about .about-mission__principles p {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.8;
}

.page-about .about-mission__body p:not(:last-child) {
  margin-bottom: 1rem;
}

.page-about .about-mission__principles {
  margin-top: 0.5rem;
}

.page-about .about-principles {
  list-style: none;
  margin: 0;
  padding: 0;
  border-left: 2px solid rgba(45, 106, 79, 0.22);
}

.page-about .about-principles__item {
  position: relative;
  padding: 1rem 0 1rem 1.3rem;
  border-bottom: 1px solid rgba(45, 106, 79, 0.14);
}

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

.page-about .about-principles__no {
  font-family: var(--font-data);
  font-size: 0.76rem;
  font-weight: 600;
  color: var(--c-neon);
  letter-spacing: 0.06em;
}

.page-about .about-principles__item h3 {
  font-family: var(--font-headline);
  font-size: 1rem;
  font-weight: 700;
  margin: 0.3rem 0;
  color: var(--c-green);
}

.page-about .about-principles__item p {
  font-size: 0.95rem;
  line-height: 1.65;
  color: rgba(43, 32, 26, 0.78);
  margin: 0;
}

/* ---------- Timeline ---------- */
.page-about .about-timeline {
  position: relative;
  background: var(--c-night);
  color: var(--c-cream);
  padding: 4rem 0;
  overflow: hidden;
}

.page-about .about-timeline::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(138, 43, 226, 0.1) 1px, transparent 1px),
    linear-gradient(90deg, rgba(138, 43, 226, 0.1) 1px, transparent 1px);
  background-size: 34px 34px;
  pointer-events: none;
}

.page-about .about-timeline::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 0;
  border-left: 26px solid transparent;
  border-bottom: 140px solid rgba(0, 212, 170, 0.08);
  pointer-events: none;
}

.page-about .about-timeline__head {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  margin-bottom: 1.8rem;
}

.page-about .about-timeline__head h2 {
  margin-bottom: 0;
}

.page-about .about-timeline__note {
  font-family: var(--font-data);
  font-size: 0.78rem;
  color: rgba(245, 241, 232, 0.55);
  margin: 0;
}

.page-about .about-timeline__layout {
  position: relative;
  z-index: 2;
  display: grid;
  gap: 1.2rem;
}

.page-about .about-timeline__season {
  position: relative;
  z-index: 2;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-self: start;
}

.page-about .about-timeline__season-link {
  font-family: var(--font-data);
  font-size: 0.82rem;
  color: rgba(245, 241, 232, 0.72);
  border: 1px solid rgba(0, 212, 170, 0.3);
  border-radius: var(--radius-sm);
  padding: 0.5rem 0.8rem;
  text-decoration: none;
  transition: background 0.2s, border-color 0.2s, color 0.2s;
}

.page-about .about-timeline__season-link:hover,
.page-about .about-timeline__season-link:focus {
  background: rgba(138, 43, 226, 0.25);
  border-color: var(--c-neon);
  color: #fff;
}

.page-about .about-timeline__track {
  position: relative;
  min-width: 0;
}

.page-about .about-timeline__bg-wrap {
  position: absolute;
  inset: 0;
  overflow: hidden;
  z-index: 0;
  display: flex;
  align-items: flex-end;
}

.page-about .about-timeline__bg {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.18;
}

.page-about .about-timeline__bg-wrap::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, var(--c-night) 0%, rgba(11, 31, 51, 0.3) 40%, rgba(11, 31, 51, 0.88) 100%);
}

.page-about .about-timeline__curve {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 8%;
  width: 100%;
  height: 160px;
  z-index: 0;
  pointer-events: none;
  opacity: 0.7;
}

.page-about .about-milestone {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 64px 1fr;
  gap: 1rem;
  padding: 1.1rem 0;
}

.page-about .about-milestone:not(:last-child)::before {
  content: "";
  position: absolute;
  left: 31px;
  top: 50px;
  bottom: -14px;
  width: 2px;
  background: linear-gradient(to bottom, rgba(0, 212, 170, 0.6), rgba(138, 43, 226, 0.3));
}

.page-about .about-milestone__marker {
  font-family: var(--font-data);
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--c-mint);
  background: rgba(0, 212, 170, 0.08);
  border: 1px solid rgba(0, 212, 170, 0.35);
  border-radius: var(--radius-sm);
  width: fit-content;
  height: fit-content;
  padding: 0.45rem 0.6rem;
  box-shadow: 0 0 14px rgba(0, 212, 170, 0.18);
}

.page-about .about-milestone__card {
  background: linear-gradient(135deg, rgba(45, 106, 79, 0.32), rgba(11, 31, 51, 0.6));
  border: 1px solid rgba(245, 241, 232, 0.14);
  border-left: 3px solid var(--c-neon);
  border-radius: var(--radius-md);
  padding: 1rem 1.15rem;
  box-shadow: var(--shadow-soft);
}

.page-about .about-milestone__card h3 {
  font-family: var(--font-headline);
  font-size: 1rem;
  font-weight: 700;
  margin: 0 0 0.4rem;
  color: var(--c-cream);
}

.page-about .about-milestone__card p {
  font-family: var(--font-body);
  font-size: 0.95rem;
  line-height: 1.7;
  color: rgba(245, 241, 232, 0.8);
  margin: 0;
}

/* ---------- Data ---------- */
.page-about .about-data {
  background: var(--c-cream);
  padding: 4rem 0;
}

.page-about .about-data__head {
  max-width: 48rem;
  margin-bottom: 2rem;
}

.page-about .about-data__lead {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.75;
  color: rgba(43, 32, 26, 0.75);
  margin: 0;
}

.page-about .about-data__layout {
  display: grid;
  gap: 2rem;
  align-items: center;
}

.page-about .about-data__visual img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-soft);
  object-fit: cover;
}

.page-about .about-data__intro,
.page-about .about-data__note {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.75;
  color: rgba(43, 32, 26, 0.82);
}

.page-about .about-data__intro {
  margin: 0 0 1rem;
}

.page-about .about-data__stats {
  margin: 1rem 0 1.2rem;
}

.page-about .about-data__stats .data-row {
  border-bottom: 1px dashed rgba(45, 106, 79, 0.2);
  padding: 0.75rem 0;
  display: flex;
  justify-content: space-between;
  gap: 1rem;
}

.page-about .about-data__stats .data-row__label {
  font-family: var(--font-data);
  font-size: 0.82rem;
  color: var(--c-slate);
}

.page-about .about-data__stats .data-row__value {
  font-family: var(--font-headline);
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--c-green);
  text-align: right;
}

.page-about .about-data__note {
  font-size: 0.95rem;
  background: rgba(0, 212, 170, 0.1);
  border-left: 3px solid var(--c-mint);
  padding: 0.8rem 1rem;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin: 0;
}

.page-about .about-data__circles {
  display: flex;
  gap: 1rem;
  overflow-x: auto;
  padding: 2rem 0.2rem 0.6rem;
  scrollbar-width: thin;
  scrollbar-color: var(--c-green) transparent;
  -webkit-overflow-scrolling: touch;
}

.page-about .about-data__circle {
  flex: 0 0 136px;
  width: 136px;
  height: 136px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  transition: transform 0.2s, box-shadow 0.2s;
}

.page-about .about-data__circle:hover,
.page-about .about-data__circle:focus-within {
  transform: translateY(-4px);
  box-shadow: 0 0 22px rgba(0, 212, 170, 0.3);
}

.page-about .about-data__circle--leagues {
  background: conic-gradient(var(--c-mint) 0 76%, rgba(11, 31, 51, 0.14) 76%);
}

.page-about .about-data__circle--teams {
  background: conic-gradient(var(--c-neon) 0 82%, rgba(11, 31, 51, 0.14) 82%);
}

.page-about .about-data__circle--matches {
  background: conic-gradient(var(--c-amber) 0 88%, rgba(11, 31, 51, 0.14) 88%);
}

.page-about .about-data__circle::after {
  content: "";
  position: absolute;
  inset: 12px;
  background: var(--c-cream);
  border-radius: 50%;
}

.page-about .about-data__circle-content {
  position: relative;
  z-index: 1;
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.page-about .about-data__circle-num {
  font-family: var(--font-headline);
  font-size: 1.3rem;
  font-weight: 700;
  line-height: 1;
  color: var(--c-ink);
}

.page-about .about-data__circle-label {
  font-family: var(--font-data);
  font-size: 0.72rem;
  color: var(--c-slate);
}

/* ---------- Security ---------- */
.page-about .about-security {
  position: relative;
  background: var(--c-green);
  color: var(--c-cream);
  padding: 4rem 0;
  overflow: hidden;
}

.page-about .about-security::before {
  content: "";
  position: absolute;
  top: -80px;
  right: -60px;
  width: 380px;
  height: 380px;
  background: radial-gradient(circle, rgba(138, 43, 226, 0.32), transparent 70%);
  pointer-events: none;
}

.page-about .about-security::after {
  content: "";
  position: absolute;
  left: -40px;
  bottom: -60px;
  width: 260px;
  height: 260px;
  background: radial-gradient(circle, rgba(0, 212, 170, 0.2), transparent 70%);
  pointer-events: none;
}

.page-about .about-security__grid {
  position: relative;
  z-index: 2;
  display: grid;
  gap: 2.4rem;
}

.page-about .about-security h2 {
  margin-bottom: 1rem;
}

.page-about .about-security__intro > p {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.75;
  color: rgba(245, 241, 232, 0.88);
  max-width: 35rem;
}

.page-about .about-security__badges {
  list-style: none;
  margin: 1.5rem 0 0;
  padding: 0;
  display: grid;
  gap: 0.75rem;
}

.page-about .about-security__badge {
  background: rgba(245, 241, 232, 0.08);
  border: 1px solid rgba(245, 241, 232, 0.2);
  border-radius: var(--radius-md);
  padding: 0.85rem 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  box-shadow: 0 0 18px rgba(0, 212, 170, 0.12);
  transition: box-shadow 0.2s, border-color 0.2s;
}

.page-about .about-security__badge:hover {
  border-color: rgba(0, 212, 170, 0.5);
  box-shadow: 0 0 24px rgba(138, 43, 226, 0.3);
}

.page-about .about-security__badge-title {
  font-family: var(--font-headline);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--c-cream);
}

.page-about .about-security__badge-desc {
  font-family: var(--font-data);
  font-size: 0.74rem;
  color: rgba(245, 241, 232, 0.7);
}

.page-about .about-security__promise {
  font-family: var(--font-body);
  font-size: 0.95rem;
  line-height: 1.7;
  color: rgba(245, 241, 232, 0.82);
  margin: 1.2rem 0 0;
}

.page-about .about-security__promise a {
  color: var(--c-mint);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-about .about-security__expander {
  margin-top: 1.2rem;
  background: rgba(11, 31, 51, 0.28);
  border: 1px solid rgba(0, 212, 170, 0.25);
  border-radius: var(--radius-md);
  padding: 0.5rem 0.9rem;
}

.page-about .about-security__expander-trigger {
  background: none;
  border: 0;
  color: var(--c-cream);
  font-family: var(--font-data);
  font-size: 0.82rem;
  padding: 0.4rem 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  width: 100%;
  cursor: pointer;
  text-align: left;
}

.page-about .about-security__expander-trigger:hover {
  color: var(--c-mint);
}

.page-about .about-security__expander .expander__icon {
  color: var(--c-amber);
  font-weight: 700;
  font-size: 1rem;
  line-height: 1;
}

.page-about .about-security__expander .expander__panel p {
  font-family: var(--font-body);
  font-size: 0.92rem;
  line-height: 1.7;
  color: rgba(245, 241, 232, 0.82);
  margin: 0.4rem 0 0.6rem;
}

.page-about .about-security__media img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
  box-shadow: 0 0 24px rgba(11, 31, 51, 0.3);
  object-fit: cover;
}

.page-about .about-security__caption {
  font-family: var(--font-data);
  font-size: 0.78rem;
  color: rgba(245, 241, 232, 0.72);
  line-height: 1.6;
  margin: 0.85rem 0 0;
}

/* ---------- CTA ---------- */
.page-about .about-cta {
  background: var(--c-cream);
  padding: 3.5rem 0;
}

.page-about .about-cta__inner {
  position: relative;
  background: var(--c-night);
  color: var(--c-cream);
  padding: 2rem 1.5rem;
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  box-shadow: 0 6px 30px rgba(11, 31, 51, 0.2);
}

.page-about .about-cta__inner::before {
  content: "";
  position: absolute;
  top: -30px;
  right: -20px;
  width: 160px;
  height: 160px;
  background: radial-gradient(circle, rgba(138, 43, 226, 0.3), transparent 70%);
}

.page-about .about-cta__text {
  position: relative;
  z-index: 1;
}

.page-about .about-cta__text p:last-child {
  font-family: var(--font-body);
  color: rgba(245, 241, 232, 0.78);
  margin: 0.4rem 0 0;
  line-height: 1.7;
}

.page-about .about-cta__links {
  position: relative;
  z-index: 1;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.8rem;
}

.page-about .about-cta__links .btn--primary {
  background: var(--c-amber);
  color: var(--c-night);
  border: 1px solid var(--c-amber);
  text-decoration: none;
  padding: 0.65rem 1.2rem;
  border-radius: var(--radius-sm);
  font-family: var(--font-data);
  font-size: 0.82rem;
  transition: transform 0.2s, box-shadow 0.2s;
}

.page-about .about-cta__links .btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 20px rgba(255, 158, 0, 0.35);
}

.page-about .about-cta__links .btn--ghost {
  background: transparent;
  border: 1px solid rgba(245, 241, 232, 0.5);
  color: var(--c-cream);
  text-decoration: none;
  padding: 0.65rem 1.2rem;
  border-radius: var(--radius-sm);
  font-family: var(--font-data);
  font-size: 0.82rem;
  transition: border-color 0.2s, color 0.2s;
}

.page-about .about-cta__links .btn--ghost:hover {
  border-color: var(--c-mint);
  color: var(--c-mint);
}

.page-about .about-cta__textlink {
  font-family: var(--font-data);
  font-size: 0.82rem;
  color: var(--c-mint);
  text-decoration: none;
  border-bottom: 1px solid rgba(0, 212, 170, 0.4);
  padding-bottom: 2px;
}

.page-about .about-cta__textlink:hover {
  color: var(--c-amber);
  border-color: var(--c-amber);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-about .about-hero__facts {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

  .page-about .about-timeline__head {
    flex-direction: row;
    align-items: flex-end;
    justify-content: space-between;
  }
}

@media (min-width: 900px) {
  .page-about .about-hero__grid {
    grid-template-columns: 1.4fr 0.9fr;
    gap: 3rem;
    align-items: end;
  }

  .page-about .about-hero__facts {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-about .about-mission__grid {
    grid-template-columns: 1.35fr 0.95fr;
    gap: 3.5rem;
  }

  .page-about .about-mission__principles {
    margin-top: 1.6rem;
  }

  .page-about .about-data__layout {
    grid-template-columns: 0.95fr 1.05fr;
    gap: 3rem;
  }

  .page-about .about-data__visual img {
    height: 100%;
    min-height: 420px;
  }

  .page-about .about-security__grid {
    grid-template-columns: 1.15fr 0.85fr;
    gap: 3rem;
    align-items: center;
  }

  .page-about .about-cta__inner {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    padding: 2.4rem 2.6rem;
  }
}

@media (min-width: 1024px) {
  .page-about .about-hero {
    padding: 3rem 0 4.5rem;
  }

  .page-about .about-timeline__layout {
    grid-template-columns: 220px 1fr;
    gap: 2.5rem;
  }

  .page-about .about-timeline__season {
    flex-direction: column;
    position: sticky;
    top: 100px;
    padding-top: 0.4rem;
  }

  .page-about .about-timeline__season-link {
    width: fit-content;
  }

  .page-about .about-timeline__note {
    text-align: right;
  }
}