.page-contact {
  --ct-sec: clamp(52px, 7.5vw, 104px);
  --ct-cut-sm: polygon(0 0, calc(100% - 6px) 0, 100% 6px, 100% 100%, 6px 100%, 0 calc(100% - 6px));
  display: block;
  background: var(--ink);
  color: var(--white);
  font-family: var(--font-body);
}

/* ---------- 首屏 ---------- */
.page-contact .ct-hero {
  position: relative;
  overflow: hidden;
  padding-block: clamp(52px, 8vw, 118px) clamp(40px, 5vw, 72px);
  border-bottom: 1px solid var(--steel);
}

.page-contact .ct-hero__media {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.page-contact .ct-hero__media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 72% 50%;
  opacity: 0.32;
}

.page-contact .ct-hero__media::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(100deg, rgba(11, 14, 19, 0.97) 0%, rgba(11, 14, 19, 0.84) 44%, rgba(11, 14, 19, 0.48) 74%, rgba(31, 91, 255, 0.26) 100%),
    repeating-linear-gradient(90deg, rgba(36, 48, 64, 0.5) 0 1px, transparent 1px 104px);
}

.page-contact .ct-hero__inner {
  position: relative;
  z-index: 1;
}

.page-contact .ct-hero .crumb {
  margin-bottom: 20px;
  color: var(--mist);
  font-size: 13px;
}

.page-contact .ct-hero .crumb a {
  color: var(--mist);
}

.page-contact .ct-hero h1 {
  margin: 14px 0 0;
  font-family: var(--font-head);
  font-weight: 900;
  letter-spacing: -0.02em;
  line-height: 1.12;
  font-size: clamp(29px, 5vw, 60px);
  max-width: 20ch;
}

.page-contact .ct-hero__lede {
  margin: 20px 0 0;
  max-width: 62ch;
  font-size: clamp(15px, 1.6vw, 18px);
  line-height: 1.82;
  color: var(--mist);
}

.page-contact .ct-hero__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 30px;
  margin: 34px 0 0;
  padding: 20px 0 0;
  border-top: 1px solid var(--steel);
  list-style: none;
}

.page-contact .ct-hero__facts li {
  display: flex;
  align-items: baseline;
  gap: 9px;
  font-size: 13.5px;
  color: var(--mist);
}

.page-contact .ct-hero__facts .mono {
  font-family: var(--font-mono);
  font-size: 19px;
  color: var(--cyan);
  letter-spacing: 0.01em;
}

/* ---------- 渠道卡片 ---------- */
.page-contact .ct-channels {
  padding-block: var(--ct-sec);
}

.page-contact .ct-channels__head {
  max-width: 620px;
  margin-bottom: 30px;
}

.page-contact .ct-channels__head h2 {
  margin: 0 0 10px;
  font-family: var(--font-head);
  font-weight: 800;
  letter-spacing: -0.01em;
  font-size: clamp(23px, 3.2vw, 36px);
  line-height: 1.24;
}

.page-contact .ct-channels__head p {
  margin: 0;
  color: var(--mist);
  line-height: 1.75;
}

.page-contact .ct-channels__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.page-contact .ct-channel {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 26px 22px 26px;
  background: var(--board);
  border: 1px solid var(--steel);
  clip-path: var(--cut);
  transition: border-color 0.25s ease, background-color 0.25s ease, transform 0.25s ease;
}

.page-contact .ct-channel:hover,
.page-contact .ct-channel:focus-within {
  border-color: var(--cyan);
  background: #13203a;
  transform: translateY(-3px);
}

.page-contact .ct-channel__tag {
  align-self: flex-start;
  padding: 4px 11px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.12em;
  color: var(--ink);
  background: var(--cyan);
  clip-path: var(--ct-cut-sm);
}

.page-contact .ct-channel__tag--orange {
  color: var(--white);
  background: var(--orange);
}

.page-contact .ct-channel__tag--cobalt {
  color: var(--white);
  background: var(--cobalt);
}

.page-contact .ct-channel h3 {
  margin: 2px 0 0;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(17px, 1.7vw, 21px);
  line-height: 1.35;
  color: var(--white);
}

.page-contact .ct-channel p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--mist);
}

.page-contact .ct-channel__value {
  font-family: var(--font-mono);
  font-size: clamp(15px, 2vw, 19px);
  color: var(--cyan);
  word-break: break-all;
  line-height: 1.5;
}

.page-contact .ct-channel__value--text {
  font-family: var(--font-body);
  color: var(--white);
  font-size: 15.5px;
}

.page-contact .ct-channel__prep {
  margin-top: auto;
  padding-top: 14px;
  border-top: 1px dashed var(--steel);
  font-size: 13px;
  line-height: 1.7;
  color: var(--mist);
}

/* ---------- 客服邮箱 ---------- */
.page-contact .ct-mail {
  position: relative;
  padding-block: var(--ct-sec);
  background: var(--board);
  border-top: 1px solid var(--steel);
  border-bottom: 1px solid var(--steel);
}

.page-contact .ct-mail::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: min(60%, 720px);
  height: 2px;
  background: linear-gradient(90deg, var(--cyan), rgba(53, 230, 216, 0));
}

.page-contact .ct-mail__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 30px;
}

.page-contact .ct-mail__body h2 {
  margin: 12px 0 18px;
  font-family: var(--font-head);
  font-weight: 800;
  letter-spacing: -0.01em;
  font-size: clamp(23px, 3.2vw, 36px);
  line-height: 1.24;
}

.page-contact .ct-mail__body p {
  margin: 0 0 16px;
  max-width: 66ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--mist);
}

.page-contact .ct-mail__addr {
  display: inline;
  font-family: var(--font-mono);
  font-size: clamp(15px, 1.8vw, 18px);
  color: var(--white);
  border-bottom: 2px solid var(--cyan);
  padding-bottom: 2px;
  word-break: break-all;
}

.page-contact .ct-mail__side {
  padding: 24px 22px;
  background: var(--ink);
  border: 1px solid var(--steel);
  clip-path: var(--cut);
}

.page-contact .ct-mail__side h3 {
  margin: 0 0 16px;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 16px;
  letter-spacing: 0.02em;
  color: var(--white);
}

.page-contact .ct-mail__side ul {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 13px;
}

.page-contact .ct-mail__side li {
  position: relative;
  padding-left: 16px;
  font-size: 14px;
  line-height: 1.72;
  color: var(--mist);
}

.page-contact .ct-mail__side li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 6px;
  height: 6px;
  background: var(--cyan);
  clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%);
}

.page-contact .ct-mail__side li strong {
  color: var(--white);
  font-weight: 600;
}

.page-contact .ct-mail__side-note {
  margin: 20px 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--steel);
  font-size: 13px;
  line-height: 1.7;
  color: var(--mist);
}

/* ---------- 服务热线 ---------- */
.page-contact .ct-hotline {
  padding-block: var(--ct-sec);
}

.page-contact .ct-hotline__grid {
  gap: clamp(26px, 4vw, 58px);
  align-items: start;
}

.page-contact .ct-hotline h2 {
  margin: 12px 0 18px;
  font-family: var(--font-head);
  font-weight: 800;
  letter-spacing: -0.01em;
  font-size: clamp(23px, 3.2vw, 36px);
  line-height: 1.24;
}

.page-contact .ct-hotline__num {
  display: block;
  margin: 0 0 16px;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: clamp(27px, 4.2vw, 48px);
  letter-spacing: 0.01em;
  color: var(--white);
  line-height: 1.1;
}

.page-contact .ct-hotline__intro p {
  margin: 0 0 14px;
  max-width: 60ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--mist);
}

.page-contact .ct-hotline__prep {
  padding: 26px 22px;
  background: var(--board);
  border: 1px solid var(--steel);
  border-left: 3px solid var(--cobalt);
  clip-path: var(--cut);
}

.page-contact .ct-hotline__prep h3 {
  margin: 0 0 18px;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 16px;
  color: var(--white);
}

.page-contact .ct-hotline__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 15px;
  counter-reset: none;
}

.page-contact .ct-hotline__list li {
  display: grid;
  grid-template-columns: 34px 1fr;
  gap: 10px;
  font-size: 14px;
  line-height: 1.72;
  color: var(--mist);
}

.page-contact .ct-hotline__list .mono {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--cyan);
  letter-spacing: 0.08em;
  padding-top: 3px;
}

/* ---------- 数据纠错 ---------- */
.page-contact .ct-fix {
  position: relative;
  padding-block: var(--ct-sec);
  background:
    linear-gradient(180deg, rgba(16, 28, 51, 0.72), rgba(11, 14, 19, 0) 70%),
    var(--ink);
  border-top: 1px solid var(--steel);
}

.page-contact .ct-fix__head {
  max-width: 640px;
  margin-bottom: 30px;
}

.page-contact .ct-fix__head h2 {
  margin: 12px 0 12px;
  font-family: var(--font-head);
  font-weight: 800;
  letter-spacing: -0.01em;
  font-size: clamp(23px, 3.2vw, 36px);
  line-height: 1.24;
}

.page-contact .ct-fix__head p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--mist);
}

.page-contact .ct-fix__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.page-contact .ct-fix__item {
  position: relative;
  padding: 26px 22px 24px;
  background: rgba(16, 28, 51, 0.86);
  border-left: 2px solid var(--cyan);
  overflow: hidden;
}

.page-contact .ct-fix__no {
  display: block;
  margin-bottom: 12px;
  font-family: var(--font-mono);
  font-size: 26px;
  font-weight: 600;
  color: transparent;
  -webkit-text-stroke: 1px var(--cyan);
  letter-spacing: 0.04em;
  line-height: 1;
}

.page-contact .ct-fix__item h3 {
  margin: 0 0 10px;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 17px;
  color: var(--white);
}

.page-contact .ct-fix__item p {
  margin: 0;
  font-size: 14px;
  line-height: 1.78;
  color: var(--mist);
}

.page-contact .ct-fix__foot {
  margin: 26px 0 0;
  padding-top: 18px;
  border-top: 1px dashed var(--steel);
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--mist);
  max-width: 72ch;
}

/* ---------- 赛事方入驻流程 ---------- */
.page-contact .ct-flow {
  padding-block: var(--ct-sec);
  background: var(--board);
  border-top: 1px solid var(--steel);
  border-bottom: 1px solid var(--steel);
}

.page-contact .ct-flow__head {
  margin-bottom: 30px;
}

.page-contact .ct-flow__head h2 {
  margin: 12px 0 0;
  font-family: var(--font-head);
  font-weight: 800;
  letter-spacing: -0.01em;
  font-size: clamp(23px, 3.2vw, 36px);
  line-height: 1.24;
}

.page-contact .ct-flow__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 30px;
}

.page-contact .ct-flow__media {
  margin: 0;
}

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

.page-contact .ct-flow__steps {
  display: flex;
  flex-direction: column;
}

.page-contact .ct-flow__step {
  border-bottom: 1px solid var(--steel);
}

.page-contact .ct-flow__step:first-child {
  border-top: 1px solid var(--steel);
}

.page-contact .ct-flow__step summary {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 17px 4px;
  cursor: pointer;
  list-style: none;
  transition: background-color 0.2s ease;
}

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

.page-contact .ct-flow__step summary:hover {
  background: rgba(31, 91, 255, 0.08);
}

.page-contact .ct-flow__no {
  flex: 0 0 auto;
  min-width: 38px;
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 600;
  color: var(--cyan);
  letter-spacing: 0.04em;
}

.page-contact .ct-flow__name {
  flex: 1;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(16px, 1.6vw, 20px);
  color: var(--white);
  line-height: 1.4;
}

.page-contact .ct-flow__step summary::after {
  content: "+";
  font-family: var(--font-mono);
  font-size: 19px;
  line-height: 1;
  color: var(--mist);
}

.page-contact .ct-flow__step[open] summary::after {
  content: "–";
  color: var(--cyan);
}

.page-contact .ct-flow__body {
  padding: 0 4px 22px 52px;
}

.page-contact .ct-flow__body p {
  margin: 0;
  font-size: 14px;
  line-height: 1.78;
  color: var(--mist);
}

.page-contact .ct-flow__body ul {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 12px 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .ct-flow__body li {
  padding: 4px 11px;
  border: 1px dashed var(--steel);
  font-size: 12.5px;
  color: var(--mist);
}

.page-contact .ct-flow__foot {
  margin: 22px 0 0;
  font-size: 13.5px;
  line-height: 1.78;
  color: var(--mist);
}

/* ---------- 来信与站点信息 ---------- */
.page-contact .ct-info {
  padding-block: var(--ct-sec);
}

.page-contact .ct-info__title {
  margin: 0 0 22px;
  font-family: var(--font-head);
  font-weight: 800;
  letter-spacing: -0.01em;
  font-size: clamp(21px, 2.8vw, 30px);
  line-height: 1.3;
}

.page-contact .ct-info__bar {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--steel);
  border: 1px solid var(--steel);
}

.page-contact .ct-info__cell {
  background: var(--board);
  padding: 20px 22px;
}

.page-contact .ct-info__label {
  display: block;
  margin-bottom: 9px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--cyan);
}

.page-contact .ct-info__val {
  margin: 0;
  font-size: 15px;
  line-height: 1.62;
  color: var(--white);
}

.page-contact .ct-info__note {
  margin: 20px 0 0;
  max-width: 76ch;
  font-size: 13.5px;
  line-height: 1.85;
  color: var(--mist);
}

.page-contact .ct-info__note a {
  color: var(--white);
  text-decoration: underline;
  text-decoration-color: var(--cyan);
  text-underline-offset: 3px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 760px) {
  .page-contact .ct-channels__grid {
    grid-template-columns: 1fr 1fr;
  }

  .page-contact .ct-channel:first-child {
    grid-column: 1 / -1;
  }

  .page-contact .ct-fix__grid {
    grid-template-columns: 1.25fr 1fr 0.95fr;
  }

  .page-contact .ct-info__bar {
    grid-template-columns: 1.35fr 1fr 1fr;
  }

  .page-contact .ct-flow__body {
    padding-left: 56px;
  }
}

@media (min-width: 900px) {
  .page-contact .ct-channels__grid {
    grid-template-columns: 1.65fr 1fr 1fr;
    align-items: stretch;
  }

  .page-contact .ct-channel:first-child {
    grid-column: auto;
  }

  .page-contact .ct-mail__grid {
    grid-template-columns: 1.5fr 1fr;
    gap: 56px;
  }

  .page-contact .ct-flow__grid {
    grid-template-columns: 0.95fr 1.05fr;
    gap: 50px;
    align-items: start;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .ct-channel,
  .page-contact .ct-channel:hover,
  .page-contact .ct-channel:focus-within {
    transition: none;
    transform: none;
  }
}
</main>