.page-contact {
  --pc-cut: 18px;
  --pc-gap: clamp(16px, 2.6vw, 30px);
  --pc-line: rgba(233, 162, 59, .22);
  padding-bottom: clamp(40px, 7vw, 88px);
}

/* ---------- 首屏框景 ---------- */
.page-contact .contact-frame {
  position: relative;
  margin-top: clamp(10px, 2vw, 22px);
  padding: clamp(26px, 4vw, 52px) clamp(18px, 3.4vw, 48px) clamp(30px, 4.4vw, 54px);
  border: 1px solid var(--pc-line);
  background:
    radial-gradient(130% 120% at 100% 0%, rgba(75, 58, 120, .52), transparent 62%),
    radial-gradient(90% 110% at 0% 110%, rgba(53, 201, 164, .13), transparent 60%),
    linear-gradient(180deg, #141821 0%, #0A0C10 100%);
  clip-path: polygon(0 0, calc(100% - 34px) 0, 100% 34px, 100% 100%, 34px 100%, 0 calc(100% - 34px));
  overflow: hidden;
}

.page-contact .contact-frame::after {
  content: "";
  position: absolute;
  right: -80px;
  bottom: -110px;
  width: 280px;
  height: 280px;
  border: 1px solid rgba(233, 162, 59, .18);
  border-radius: 50%;
  pointer-events: none;
}

.page-contact .contact-frame__rail {
  position: absolute;
  top: 12px;
  left: 0;
  right: 0;
  height: 7px;
  background-image: repeating-linear-gradient(90deg, rgba(233, 162, 59, .55) 0 1px, transparent 1px 16px);
  opacity: .65;
  pointer-events: none;
}

.page-contact .contact-frame__grid {
  display: grid;
  gap: clamp(22px, 3.4vw, 40px);
  margin-top: 18px;
}

.page-contact .contact-frame h1 {
  margin: 0 0 16px;
  color: var(--ink-strong);
  font-family: var(--font-head);
  font-weight: 800;
  letter-spacing: .02em;
  line-height: 1.22;
  font-size: clamp(26px, 4.4vw, 52px);
  max-width: 20ch;
}

.page-contact .contact-frame .page-lede {
  margin: 0;
  color: var(--muted);
  max-width: 58ch;
}

.page-contact .contact-frame__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(20px, 3vw, 30px);
}

.page-contact .stat-rail {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: rgba(232, 228, 218, .10);
  border: 1px solid rgba(232, 228, 218, .10);
  clip-path: polygon(0 0, calc(100% - 16px) 0, 100% 16px, 100% 100%, 16px 100%, 0 calc(100% - 16px));
  align-self: end;
}

.page-contact .stat-rail__item {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 16px;
  background: rgba(10, 12, 16, .74);
}

.page-contact .stat-rail__num {
  color: var(--gold-hi);
  font-size: clamp(24px, 3.4vw, 34px);
  font-weight: 700;
  line-height: 1.05;
}

.page-contact .stat-rail__unit {
  font-size: .52em;
  margin-left: 2px;
}

.page-contact .stat-rail__key {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.55;
}

/* ---------- 合作类型 ---------- */
.page-contact .coop-grid {
  display: grid;
  gap: clamp(14px, 2vw, 22px);
  margin-top: clamp(22px, 3vw, 34px);
  align-items: start;
}

.page-contact .coop-card {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 22px 18px 18px;
  border: 1px solid rgba(232, 228, 218, .10);
  background: linear-gradient(180deg, #141821 0%, #10141B 100%);
  clip-path: polygon(0 0, calc(100% - 16px) 0, 100% 16px, 100% 100%, 16px 100%, 0 calc(100% - 16px));
  transition: border-color var(--duration) var(--ease), background var(--duration) var(--ease);
}

.page-contact .coop-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 16px;
  height: 3px;
  background: var(--card-accent, var(--gold));
}

.page-contact .coop-card:hover {
  border-color: var(--pc-line);
  background: linear-gradient(180deg, #191E28 0%, #10141B 100%);
}

.page-contact .coop-card__idx {
  margin: 0 0 12px;
  color: var(--card-accent, var(--gold));
  font-size: 12px;
  letter-spacing: .16em;
}

.page-contact .coop-card__title {
  margin: 0 0 10px;
  color: var(--ink-strong);
  font-family: var(--font-head);
  font-size: 21px;
  font-weight: 800;
  letter-spacing: .02em;
}

.page-contact .coop-card__fit {
  margin: 0 0 14px;
  color: var(--muted);
  font-size: 13.5px;
  line-height: 1.65;
}

.page-contact .coop-card__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 9px;
}

.page-contact .coop-card__list li {
  position: relative;
  padding-left: 15px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink);
}

.page-contact .coop-card__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .66em;
  width: 6px;
  height: 6px;
  background: var(--card-accent, var(--gold));
  transform: rotate(45deg);
  opacity: .85;
}

.page-contact .coop-card__more {
  margin-top: auto;
  padding-top: 14px;
}

.page-contact .coop-card__more summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding-top: 12px;
  border-top: 1px dashed var(--pc-line);
  color: var(--gold);
  font-size: 13px;
  letter-spacing: .06em;
  cursor: pointer;
  list-style: none;
}

.page-contact .coop-card__more summary::-webkit-details-marker {
  display: none;
}

.page-contact .coop-card__more summary::after {
  content: "+";
  font-family: var(--font-mono);
  font-size: 16px;
  line-height: 1;
}

.page-contact .coop-card__more[open] summary::after {
  content: "–";
}

.page-contact .coop-card__more summary:focus-visible {
  outline: 2px solid var(--gold-hi);
  outline-offset: 3px;
}

.page-contact .coop-card__more ul {
  list-style: none;
  margin: 12px 0 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.page-contact .coop-card__more li {
  position: relative;
  padding-left: 14px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.65;
}

.page-contact .coop-card__more li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .7em;
  width: 8px;
  height: 1px;
  background: var(--muted);
}

/* ---------- 流程 ---------- */
.page-contact .flow-figure {
  margin-bottom: clamp(18px, 2.6vw, 26px);
}

.page-contact .flow {
  border: 1px solid rgba(232, 228, 218, .10);
  background: #10141B;
  clip-path: polygon(0 0, calc(100% - 22px) 0, 100% 22px, 100% 100%, 22px 100%, 0 calc(100% - 22px));
  overflow: hidden;
}

.page-contact .flow__tabs {
  display: flex;
  border-bottom: 1px solid rgba(232, 228, 218, .10);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.page-contact .flow__tab {
  flex: 1 1 0;
  min-width: 132px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 16px 14px;
  border: 0;
  border-right: 1px solid rgba(232, 228, 218, .10);
  background: transparent;
  color: var(--muted);
  font: inherit;
  text-align: left;
  cursor: pointer;
  transition: color var(--duration) var(--ease), background var(--duration) var(--ease), box-shadow var(--duration) var(--ease);
}

.page-contact .flow__tab:last-child {
  border-right: 0;
}

.page-contact .flow__tab:hover {
  color: var(--ink);
  background: rgba(233, 162, 59, .06);
}

.page-contact .flow__tab[aria-selected="true"] {
  color: var(--ink-strong);
  background: linear-gradient(180deg, rgba(233, 162, 59, .16), transparent);
  box-shadow: inset 0 -2px 0 var(--gold);
}

.page-contact .flow__tab:focus-visible {
  outline: 2px solid var(--gold-hi);
  outline-offset: -3px;
}

.page-contact .flow__idx {
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--gold);
}

.page-contact .flow__tab[aria-selected="true"] .flow__idx {
  color: var(--gold-hi);
}

.page-contact .flow__label {
  font-family: var(--font-head);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: .02em;
}

.page-contact .flow__panel {
  padding: clamp(20px, 3.2vw, 36px);
}

.page-contact .flow__panel[hidden] {
  display: none;
}

.page-contact .flow__panel:focus-visible {
  outline: 2px solid var(--gold-hi);
  outline-offset: -4px;
}

.page-contact .flow__panel-title {
  margin: 0 0 12px;
  color: var(--ink-strong);
  font-family: var(--font-head);
  font-size: clamp(19px, 2.4vw, 24px);
  font-weight: 800;
  letter-spacing: .02em;
}

.page-contact .flow__panel p {
  margin: 0;
  color: var(--ink);
  max-width: 72ch;
}

.page-contact .flow__meta {
  display: grid;
  gap: 12px;
  margin: 22px 0 0;
  padding-top: 18px;
  border-top: 1px dashed var(--pc-line);
}

.page-contact .flow__meta div {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.page-contact .flow__meta dt {
  color: var(--gold);
  font-size: 12px;
  letter-spacing: .12em;
}

.page-contact .flow__meta dd {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.65;
}

/* ---------- 合作方支持 ---------- */
.page-contact .support-wrap {
  border-top: 1px dashed var(--pc-line);
  padding-top: clamp(24px, 3.4vw, 40px);
}

.page-contact .support-wrap__head {
  max-width: 60ch;
}

.page-contact .support-wrap__head h2 {
  margin: 6px 0 12px;
}

.page-contact .support-wrap__head p {
  margin: 0;
  color: var(--muted);
}

.page-contact .support-list {
  list-style: none;
  margin: clamp(22px, 3vw, 34px) 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: rgba(232, 228, 218, .10);
  border: 1px solid rgba(232, 228, 218, .10);
}

.page-contact .support-item {
  padding: clamp(18px, 2.6vw, 28px);
  background: linear-gradient(180deg, #141821 0%, #10141B 100%);
}

.page-contact .support-item__idx {
  display: block;
  margin-bottom: 10px;
  color: var(--gold);
  font-size: 12px;
  letter-spacing: .18em;
}

.page-contact .support-item__title {
  margin: 0 0 10px;
  color: var(--ink-strong);
  font-family: var(--font-head);
  font-size: 18px;
  font-weight: 800;
  letter-spacing: .02em;
}

.page-contact .support-item p {
  margin: 0;
  color: var(--muted);
  font-size: 14.5px;
  line-height: 1.75;
}

/* ---------- 赛事与活动 ---------- */
.page-contact .events {
  display: grid;
  gap: clamp(20px, 3vw, 34px);
}

.page-contact .events__main h2 {
  margin: 6px 0 16px;
  max-width: 26ch;
}

.page-contact .events__main p {
  margin: 0 0 14px;
  color: var(--muted);
  max-width: 62ch;
}

.page-contact .events__forms {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 22px 0 0;
  padding: 0;
}

.page-contact .events__forms li {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border: 1px solid var(--pc-line);
  color: var(--ink);
  font-size: 13.5px;
  clip-path: polygon(0 0, calc(100% - 9px) 0, 100% 9px, 100% 100%, 9px 100%, 0 calc(100% - 9px));
  background: rgba(233, 162, 59, .07);
}

.page-contact .events__forms .mono {
  color: var(--gold);
  font-size: 11.5px;
  letter-spacing: .1em;
}

.page-contact .events__side {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 1px;
  background: rgba(75, 58, 120, .55);
  border: 1px solid rgba(75, 58, 120, .7);
  align-content: start;
}

.page-contact .events__stat {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 18px 16px;
  background: linear-gradient(180deg, rgba(75, 58, 120, .30), rgba(10, 12, 16, .88));
}

.page-contact .events__stat-num {
  color: var(--gold-hi);
  font-size: clamp(26px, 3.4vw, 36px);
  font-weight: 700;
  line-height: 1.05;
}

.page-contact .events__stat-key {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.55;
}

/* ---------- 联系通道 ---------- */
.page-contact .desk {
  border: 1px solid var(--pc-line);
  background:
    radial-gradient(120% 130% at 0% 0%, rgba(53, 201, 164, .10), transparent 58%),
    linear-gradient(180deg, #141821 0%, #10141B 100%);
  padding: clamp(22px, 3.4vw, 42px);
  clip-path: polygon(0 0, calc(100% - 20px) 0, 100% 20px, 100% 100%, 20px 100%, 0 calc(100% - 20px));
}

.page-contact .desk__head {
  max-width: 62ch;
}

.page-contact .desk__head h2 {
  margin: 6px 0 12px;
}

.page-contact .desk__head p {
  margin: 0;
  color: var(--muted);
}

.page-contact .contact-ledger {
  margin: clamp(22px, 3vw, 32px) 0 0;
  border-top: 1px dashed var(--pc-line);
}

.page-contact .contact-ledger__row {
  display: grid;
  gap: 6px;
  padding: 16px 0;
  border-bottom: 1px dashed rgba(232, 228, 218, .10);
}

.page-contact .contact-ledger__k {
  color: var(--gold);
  font-size: 12px;
  letter-spacing: .14em;
  text-transform: uppercase;
}

.page-contact .contact-ledger__v {
  margin: 0;
  color: var(--ink-strong);
  font-size: 15px;
  line-height: 1.7;
  word-break: break-word;
}

.page-contact .contact-ledger__v.mono {
  font-size: 16px;
  letter-spacing: .02em;
}

.page-contact .desk__note {
  margin: clamp(18px, 2.6vw, 26px) 0 0;
  padding-top: 18px;
  border-top: 1px solid rgba(232, 228, 218, .10);
  color: var(--muted);
  font-size: 14px;
  line-height: 1.8;
}

.page-contact .desk__note a {
  color: var(--gold-hi);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 210, 122, .45);
}

.page-contact .desk__note a:hover {
  border-bottom-color: var(--gold-hi);
}

/* ---------- 寄送与到访 ---------- */
.page-contact .visit-grid {
  display: grid;
  gap: clamp(14px, 2vw, 22px);
}

.page-contact .visit-card {
  position: relative;
  padding: clamp(20px, 2.8vw, 30px);
  border: 1px solid rgba(232, 228, 218, .10);
  background: linear-gradient(180deg, #141821 0%, #0E1218 100%);
  clip-path: polygon(0 0, calc(100% - 14px) 0, 100% 14px, 100% 100%, 14px 100%, 0 calc(100% - 14px));
}

.page-contact .visit-card__idx {
  margin: 0 0 10px;
  color: var(--muted);
  font-size: 12px;
  letter-spacing: .16em;
}

.page-contact .visit-card__title {
  margin: 0 0 12px;
  color: var(--ink-strong);
  font-family: var(--font-head);
  font-size: 20px;
  font-weight: 800;
  letter-spacing: .02em;
}

.page-contact .visit-card p {
  margin: 0 0 12px;
  color: var(--muted);
  font-size: 14.5px;
  line-height: 1.75;
}

.page-contact .visit-card__addr {
  padding-top: 12px;
  border-top: 1px dashed var(--pc-line);
  color: var(--gold-hi) !important;
  font-size: 13.5px !important;
  line-height: 1.7 !important;
  word-break: break-word;
}

.page-contact .visit-card__hint {
  margin-bottom: 0 !important;
  color: var(--warn) !important;
  font-size: 13px !important;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-contact .flow__meta {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
  }

  .page-contact .contact-ledger__row {
    grid-template-columns: minmax(110px, 150px) minmax(0, 1fr);
    align-items: baseline;
    gap: 18px;
  }
}

@media (min-width: 860px) {
  .page-contact .support-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-contact .events {
    grid-template-columns: minmax(0, 1.4fr) minmax(240px, .75fr);
    align-items: start;
  }

  .page-contact .events__side {
    grid-template-columns: minmax(0, 1fr);
  }

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

@media (min-width: 960px) {
  .page-contact .contact-frame__grid {
    grid-template-columns: minmax(0, 1.25fr) minmax(270px, .85fr);
    align-items: end;
    gap: clamp(28px, 4vw, 56px);
  }
}

@media (min-width: 1040px) {
  .page-contact .coop-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    padding-bottom: 34px;
  }

  .page-contact .coop-card:nth-child(2) {
    transform: translateY(26px);
  }

  .page-contact .coop-card:nth-child(4) {
    transform: translateY(14px);
  }
}

@media (max-width: 480px) {
  .page-contact .contact-frame {
    clip-path: polygon(0 0, calc(100% - 22px) 0, 100% 22px, 100% 100%, 22px 100%, 0 calc(100% - 22px));
  }

  .page-contact .stat-rail {
    grid-template-columns: minmax(0, 1fr);
  }

  .page-contact .coop-card__title,
  .page-contact .visit-card__title {
    font-size: 18px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .coop-card,
  .page-contact .flow__tab {
    transition: none;
  }

  .page-contact .coop-card:nth-child(2),
  .page-contact .coop-card:nth-child(4) {
    transform: none;
  }
}

.page-contact {
  --card-accent: transparent;
}