/* ===== 联系与反馈 · 页面专属样式 ===== */
.page-contact {
  --ct-max: 1160px;
  --ct-gutter: clamp(16px, 4vw, 40px);
  display: block;
}

.page-contact .ct-wrap {
  width: min(var(--ct-max), 100% - (var(--ct-gutter) * 2));
  margin-inline: auto;
}

.page-contact .ct-crumbs {
  padding-top: 22px;
}

/* 首屏 */
.page-contact .ct-hero {
  padding: clamp(26px, 5vw, 56px) 0 clamp(30px, 5vw, 48px);
  display: grid;
  gap: 18px;
  border-bottom: 1px solid var(--line);
}

.page-contact .ct-hero__eyebrow {
  margin: 0;
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--data);
  text-transform: uppercase;
}

.page-contact .ct-hero__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(38px, 8vw, 82px);
  line-height: 1.02;
  letter-spacing: -0.02em;
  color: var(--hi);
  max-width: 15ch;
}

.page-contact .ct-hero__title em {
  font-style: normal;
  color: var(--accent);
}

.page-contact .ct-hero__lede {
  margin: 0;
  max-width: 60ch;
  color: var(--text);
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.8;
}

.page-contact .ct-quick {
  list-style: none;
  margin: 6px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-contact .ct-quick__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 15px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--text);
  font-size: 13px;
  letter-spacing: .04em;
  text-decoration: none;
  transition: border-color .2s ease, color .2s ease, background-color .2s ease;
}

.page-contact .ct-quick__link::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
}

.page-contact .ct-quick__link:hover,
.page-contact .ct-quick__link:focus-visible {
  border-color: var(--accent);
  background: rgba(61, 240, 138, .09);
  color: var(--hi);
}

/* 章节 */
.page-contact .ct-ch {
  position: relative;
  margin-top: clamp(46px, 7vw, 88px);
}

.page-contact .ct-ch .chapter__title {
  max-width: 22ch;
}

/* 三条通道卡片 */
.page-contact .ct-channels {
  display: grid;
  gap: 14px;
  margin-top: 24px;
}

.page-contact .ct-chan {
  --chan: var(--accent);
  position: relative;
  display: grid;
  gap: 10px;
  align-content: start;
  padding: 22px 20px 22px 24px;
  background: linear-gradient(165deg, rgba(16, 54, 47, .94), rgba(10, 38, 34, .95));
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  transition: transform .2s ease, border-color .2s ease, box-shadow .2s ease;
}

.page-contact .ct-chan::before {
  content: "";
  position: absolute;
  left: 0;
  top: 22px;
  bottom: 22px;
  width: 3px;
  border-radius: 0 3px 3px 0;
  background: var(--chan);
}

.page-contact .ct-chan--ticket { --chan: var(--accent); }
.page-contact .ct-chan--support { --chan: var(--data); }
.page-contact .ct-chan--service { --chan: var(--warn); }

.page-contact .ct-chan:hover,
.page-contact .ct-chan:focus-within {
  transform: translateY(-4px);
  border-color: var(--chan);
  box-shadow: var(--shadow-lift);
}

.page-contact .ct-chan__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 13px;
  border: 1px solid var(--line);
  background: rgba(4, 18, 17, .55);
  color: var(--chan);
}

.page-contact .ct-chan__icon svg {
  width: 21px;
  height: 21px;
  display: block;
}

.page-contact .ct-chan__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 20px;
  line-height: 1.25;
  color: var(--hi);
}

.page-contact .ct-chan__for {
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--text);
}

.page-contact .ct-chan__how {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--muted);
}

.page-contact .ct-chan__addr,
.page-contact .ct-chan__time {
  margin: 2px 0 0;
  padding-top: 11px;
  border-top: 1px dashed var(--line);
  font-size: 13px;
  line-height: 1.7;
}

.page-contact .ct-chan__addr {
  font-family: var(--font-data);
  color: var(--chan);
  letter-spacing: -0.01em;
  word-break: break-all;
}

.page-contact .ct-chan__time {
  color: var(--muted);
}

/* 流程示意 */
.page-contact .ct-flow {
  margin: 28px 0 0;
  display: grid;
  gap: 12px;
}

.page-contact .ct-flow__frame {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--panel);
}

.page-contact .ct-flow__frame .media__img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-contact .ct-flow .media__caption {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.7;
}

/* 材料清单 */
.page-contact .ct-check {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: grid;
  gap: 0;
}

.page-contact .ct-check__item {
  display: grid;
  grid-template-columns: 18px 1fr;
  gap: 13px;
  align-items: start;
  padding: 15px 4px;
  border-bottom: 1px solid var(--line);
}

.page-contact .ct-check__item p {
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--text);
}

.page-contact .ct-check__box {
  position: relative;
  margin-top: 5px;
  width: 17px;
  height: 17px;
  border: 1px solid var(--accent);
  border-radius: 5px;
  background: rgba(61, 240, 138, .07);
}

.page-contact .ct-check__box::after {
  content: "";
  position: absolute;
  left: 4px;
  top: 0px;
  width: 5px;
  height: 10px;
  border-right: 2px solid var(--accent);
  border-bottom: 2px solid var(--accent);
  transform: rotate(42deg);
}

/* 商务合作 */
.page-contact .ct-coop {
  margin-top: 24px;
  display: grid;
  gap: 14px;
}

.page-contact .ct-coop__card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: transform .2s ease, border-color .2s ease;
}

.page-contact .ct-coop__card:hover,
.page-contact .ct-coop__card:focus-within {
  transform: translateY(-3px);
  border-color: var(--accent);
}

.page-contact .ct-coop__summary {
  list-style: none;
  cursor: pointer;
  padding: 20px;
  display: grid;
  gap: 10px;
}

.page-contact .ct-coop__summary::-webkit-details-marker {
  display: none;
}

.page-contact .ct-coop__summary:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: -2px;
}

.page-contact .ct-coop__idx {
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--data);
}

.page-contact .ct-coop__title {
  display: block;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 20px;
  line-height: 1.28;
  color: var(--hi);
}

.page-contact .ct-coop__for {
  display: block;
  font-size: 14px;
  line-height: 1.72;
  color: var(--muted);
}

.page-contact .ct-coop__summary::after {
  content: "+ 所需材料";
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--accent);
}

.page-contact .ct-coop__card[open] .ct-coop__summary::after {
  content: "− 收起";
}

.page-contact .ct-coop__body {
  padding: 18px 20px 22px;
  border-top: 1px solid var(--line);
  background: rgba(4, 18, 17, .32);
}

/* 通用小列表 */
.page-contact .ct-list {
  list-style: none;
  margin: 10px 0 0;
  padding: 0;
  display: grid;
  gap: 9px;
}

.page-contact .ct-list li {
  position: relative;
  padding-left: 18px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--text);
}

.page-contact .ct-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .72em;
  width: 8px;
  height: 1px;
  background: var(--data);
}

/* 媒体与内容合作 */
.page-contact .ct-split {
  margin-top: 24px;
  display: grid;
  gap: 18px;
}

.page-contact .ct-split__main {
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: linear-gradient(140deg, rgba(53, 214, 196, .1), rgba(16, 54, 47, .9) 62%);
}

.page-contact .ct-split__side {
  padding: 22px;
  border-left: 3px solid var(--warn);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  background: rgba(16, 54, 47, .58);
}

.page-contact .ct-split h3 {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 19px;
  line-height: 1.3;
  color: var(--hi);
}

.page-contact .ct-split p {
  margin: 0 0 16px;
  font-size: 15px;
  line-height: 1.78;
  color: var(--text);
}

.page-contact .ct-split__main .btn {
  margin-bottom: 0;
}

/* 青训接口流程 */
.page-contact .ct-steps {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-contact .ct-steps li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 14px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: rgba(10, 38, 34, .72);
}

.page-contact .ct-steps__num {
  font-family: var(--font-data);
  font-size: 26px;
  line-height: 1;
  color: var(--data);
  font-variant-numeric: tabular-nums;
}

.page-contact .ct-steps h3 {
  margin: 0 0 6px;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--hi);
}

.page-contact .ct-steps p {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--muted);
}

.page-contact .ct-note {
  margin: 18px 0 0;
  padding-left: 15px;
  border-left: 2px solid var(--accent);
  font-size: 14px;
  line-height: 1.78;
  color: var(--muted);
}

/* 信息板 */
.page-contact .ct-board {
  position: relative;
  margin-top: 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--panel);
  isolation: isolate;
}

.page-contact .ct-board__bg {
  position: absolute;
  inset: 0;
  z-index: -2;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .34;
}

.page-contact .ct-board__veil {
  position: absolute;
  inset: 0;
  z-index: -1;
  background: linear-gradient(160deg, rgba(4, 18, 17, .7), rgba(4, 18, 17, .95) 72%);
}

.page-contact .ct-board__inner {
  position: relative;
  padding: clamp(22px, 4vw, 38px);
  display: grid;
  gap: 18px;
}

.page-contact .ct-rows {
  margin: 0;
  display: grid;
}

.page-contact .ct-row {
  display: grid;
  gap: 6px;
  padding: 15px 0;
  border-bottom: 1px solid rgba(30, 74, 66, .85);
}

.page-contact .ct-row:last-child {
  border-bottom: none;
}

.page-contact .ct-row dt {
  margin: 0;
  font-size: 13px;
  letter-spacing: .14em;
  color: var(--muted);
}

.page-contact .ct-row dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.6;
  color: var(--hi);
  word-break: break-word;
}

.page-contact .ct-row dd.u-mono {
  font-family: var(--font-data);
  letter-spacing: -0.01em;
  font-size: 16px;
}

.page-contact .ct-board__note {
  margin: 0;
  padding-top: 6px;
  border-top: 1px dashed var(--line);
  font-size: 13px;
  line-height: 1.75;
  color: var(--muted);
}

/* 相关页面 */
.page-contact .ct-more {
  margin-top: clamp(40px, 6vw, 72px);
  padding-top: 22px;
  border-top: 1px dashed var(--line);
  display: flex;
  flex-wrap: wrap;
  gap: 10px 24px;
}

.page-contact .ct-more__link {
  font-size: 14px;
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .2s ease, border-color .2s ease;
}

.page-contact .ct-more__link:hover,
.page-contact .ct-more__link:focus-visible {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

.page-contact a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

/* 断点 */
@media (min-width: 640px) {
  .page-contact .ct-row {
    grid-template-columns: 120px 1fr;
    gap: 22px;
    align-items: baseline;
  }
}

@media (min-width: 760px) {
  .page-contact .ct-channels {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
  }

  .page-contact .ct-check {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 30px;
  }

  .page-contact .ct-check__item:nth-last-child(2) {
    border-bottom: none;
  }

  .page-contact .ct-check__item:last-child {
    border-bottom: none;
  }

  .page-contact .ct-steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-contact .ct-coop {
    grid-template-columns: 4fr 5fr 3fr;
    align-items: start;
  }

  .page-contact .ct-split {
    grid-template-columns: 7fr 4fr;
    gap: 30px;
    align-items: start;
  }

  .page-contact .ct-ch .chapter__head {
    padding-left: 0;
  }
}

@media (min-width: 1280px) {
  .page-contact {
    --ct-max: 1220px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .ct-chan,
  .page-contact .ct-coop__card,
  .page-contact .ct-quick__link,
  .page-contact .ct-more__link {
    transition: none;
  }

  .page-contact .ct-chan:hover,
  .page-contact .ct-chan:focus-within,
  .page-contact .ct-coop__card:hover,
  .page-contact .ct-coop__card:focus-within {
    transform: none;
  }
}