.page-contact {
  --ct-line: rgba(168, 212, 240, .18);
  --ct-line-strong: rgba(168, 212, 240, .32);
  --ct-gold-line: rgba(242, 169, 59, .44);
  --ct-gap: clamp(18px, 3vw, 36px);
  --ct-radius: 4px;
}

.page-contact a:focus-visible,
.page-contact button:focus-visible,
.page-contact summary:focus-visible {
  outline: 2px solid var(--gold-soft);
  outline-offset: 3px;
  border-radius: 2px;
}

/* ---------- 面包屑 ---------- */
.page-contact .ct-crumb {
  margin-bottom: clamp(20px, 3vw, 36px);
}

/* ---------- 首屏 ---------- */
.page-contact .ct-hero {
  position: relative;
  padding-bottom: clamp(8px, 2vw, 20px);
}

.page-contact .ct-hero__stage {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 4vw, 56px);
  align-items: start;
}

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

.page-contact .ct-frame {
  position: relative;
  overflow: hidden;
  border-radius: var(--ct-radius);
  background:
    radial-gradient(120% 80% at 20% 10%, rgba(42, 125, 191, .38), transparent 60%),
    linear-gradient(165deg, rgba(15, 76, 129, .55), rgba(6, 23, 38, .96));
  clip-path: polygon(0 0, calc(100% - var(--cut)) 0, 100% var(--cut), 100% 100%, 0 100%);
}

.page-contact .ct-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(168, 212, 240, .07) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(168, 212, 240, .07) 1px, transparent 1px);
  background-size: 46px 46px;
  pointer-events: none;
}

.page-contact .ct-frame--tall {
  aspect-ratio: 1000 / 1200;
}

.page-contact .ct-frame--wide {
  aspect-ratio: 1200 / 700;
}

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

/* ---------- 联系渠道列表 ---------- */
.page-contact .ct-channels {
  list-style: none;
  margin: clamp(30px, 4vw, 46px) 0 0;
  padding: 0;
  border-top: 1px solid var(--ct-line);
}

.page-contact .ct-channel {
  display: grid;
  grid-template-columns: 1fr;
  gap: 6px 20px;
  padding: 20px 0 22px 18px;
  border-bottom: 1px solid var(--ct-line);
  position: relative;
}

.page-contact .ct-channel::before {
  content: "";
  position: absolute;
  left: 0;
  top: 22px;
  width: 3px;
  height: 16px;
  background: var(--sky);
  opacity: .5;
  transform: skewY(-14deg);
  transition: background-color .22s ease, height .22s ease, opacity .22s ease;
}

.page-contact .ct-channel--accent::before {
  background: var(--gold);
  opacity: 1;
}

.page-contact .ct-channel:hover::before {
  background: var(--gold);
  opacity: 1;
  height: 26px;
}

.page-contact .ct-channel__kicker {
  font-family: var(--font-body);
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--sky);
  text-transform: uppercase;
}

.page-contact .ct-channel__value {
  font-family: var(--font-num);
  font-size: clamp(1.15rem, 2.5vw, 1.7rem);
  font-weight: 700;
  letter-spacing: .015em;
  line-height: 1.25;
  color: var(--frost);
  overflow-wrap: anywhere;
  text-decoration: none;
  display: inline-block;
}

.page-contact .ct-channel__value--link {
  border-bottom: 1px solid rgba(168, 212, 240, .3);
  transition: color .2s ease, border-color .2s ease;
}

.page-contact .ct-channel__value--link:hover {
  color: var(--gold);
  border-bottom-color: var(--gold);
}

.page-contact .ct-channel__hint {
  font-size: 13px;
  line-height: 1.7;
  color: rgba(168, 212, 240, .78);
}

/* ---------- 服务时间 ---------- */
.page-contact .ct-hours__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--ct-gap);
  margin-top: clamp(24px, 3vw, 40px);
}

.page-contact .ct-hours__card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  min-width: 0;
}

.page-contact .ct-hours__card p {
  margin: 0;
}

.page-contact .ct-hours__big {
  font-family: var(--font-num);
  font-size: clamp(1.9rem, 4vw, 2.7rem);
  font-weight: 700;
  line-height: 1.05;
  color: var(--gold);
  letter-spacing: .01em;
}

.page-contact .ct-hours__big span {
  font-family: var(--font-body);
  font-size: .4em;
  font-weight: 500;
  letter-spacing: .1em;
  color: var(--sky);
}

.page-contact .ct-hours__text {
  font-size: 15px;
  line-height: 1.78;
  color: rgba(247, 250, 252, .82);
}

/* ---------- 商务合作 ---------- */
.page-contact .ct-coop__head {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 52px);
  align-items: end;
}

.page-contact .ct-coop__intro p {
  margin-bottom: 0;
}

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

.page-contact .ct-filter {
  margin-top: clamp(26px, 3.6vw, 44px);
}

.page-contact .ct-filter__row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-contact .ct-filter__btn {
  font-family: var(--font-body);
  font-size: 14px;
  letter-spacing: .06em;
  padding: 10px 20px;
  color: var(--sky);
  background: rgba(10, 37, 64, .72);
  border: 1px solid var(--ct-line-strong);
  border-radius: 2px;
  cursor: pointer;
  clip-path: polygon(10px 0, 100% 0, 100% calc(100% - 10px), calc(100% - 10px) 100%, 0 100%, 0 10px);
  transition: background-color .2s ease, color .2s ease, border-color .2s ease, transform .2s ease;
}

.page-contact .ct-filter__btn:hover {
  color: var(--frost);
  border-color: var(--ct-gold-line);
  transform: translateY(-2px);
}

.page-contact .ct-filter__btn[aria-pressed="true"],
.page-contact .ct-filter__btn.is-active {
  color: var(--ink);
  background: var(--gold);
  border-color: var(--gold);
}

.page-contact .ct-filter__status {
  margin: 12px 0 0;
  font-size: 13px;
  letter-spacing: .06em;
  color: rgba(168, 212, 240, .7);
}

.page-contact .ct-coop__panels {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--ct-gap);
  margin-top: clamp(22px, 3vw, 34px);
}

.page-contact .ct-coop__panel {
  min-width: 0;
}

.page-contact .ct-coop__name {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: clamp(1.1rem, 2vw, 1.35rem);
  letter-spacing: .02em;
  color: var(--frost);
}

.page-contact .ct-coop__desc {
  margin: 0 0 18px;
  font-size: 14px;
  line-height: 1.75;
  color: rgba(168, 212, 240, .8);
}

.page-contact .ct-steps {
  list-style: none;
  counter-reset: ct-step;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--ct-line);
}

.page-contact .ct-steps .cf-steps__item {
  counter-increment: ct-step;
  position: relative;
  padding: 16px 0 16px 40px;
  border-bottom: 1px solid var(--ct-line);
}

.page-contact .ct-steps .cf-steps__item::before {
  content: counter(ct-step, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 17px;
  font-family: var(--font-num);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: .04em;
  color: var(--gold);
}

.page-contact .ct-step__lead {
  margin: 0 0 4px;
  font-size: 15px;
  font-weight: 600;
  color: var(--frost);
}

.page-contact .ct-step__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: rgba(168, 212, 240, .78);
}

/* ---------- 媒体与社群 ---------- */
.page-contact .ct-media__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 56px);
  align-items: start;
}

.page-contact .ct-media__intro p {
  margin-bottom: 0;
}

.page-contact .ct-media__list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--ct-line-strong);
}

.page-contact .ct-media__item {
  display: grid;
  grid-template-columns: 48px minmax(0, 1fr);
  gap: 16px;
  padding: 22px 0;
  border-bottom: 1px solid var(--ct-line);
  transition: transform .22s ease;
}

.page-contact .ct-media__item:hover {
  transform: translateX(4px);
}

.page-contact .ct-media__idx {
  font-family: var(--font-num);
  font-size: 26px;
  font-weight: 700;
  line-height: 1;
  color: rgba(168, 212, 240, .38);
  letter-spacing: .02em;
}

.page-contact .ct-media__name {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-size: clamp(1rem, 1.7vw, 1.18rem);
  letter-spacing: .02em;
  color: var(--frost);
}

.page-contact .ct-media__item p {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: rgba(247, 250, 252, .8);
  max-width: 38em;
}

/* ---------- 问题反馈 ---------- */
.page-contact .ct-feedback__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--ct-gap);
  margin-top: clamp(24px, 3vw, 40px);
}

.page-contact .ct-card {
  position: relative;
  padding: 26px 24px 24px;
  background: linear-gradient(160deg, rgba(15, 76, 129, .42), rgba(6, 23, 38, .86));
  border-left: 3px solid var(--sky);
  border-radius: var(--ct-radius);
  clip-path: polygon(0 0, calc(100% - 16px) 0, 100% 16px, 100% 100%, 0 100%);
  transition: transform .22s ease, background-color .22s ease;
}

.page-contact .ct-card:hover {
  transform: translateY(-3px);
}

.page-contact .ct-card--vermilion { border-left-color: var(--vermilion); }
.page-contact .ct-card--lake { border-left-color: var(--lake-bright); }
.page-contact .ct-card--felt { border-left-color: var(--felt); }
.page-contact .ct-card--gold { border-left-color: var(--gold); }

.page-contact .ct-card__tag {
  display: inline-block;
  margin: 0 0 12px;
  font-size: 12px;
  letter-spacing: .16em;
}

.page-contact .ct-card__title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: clamp(1.05rem, 1.9vw, 1.28rem);
  letter-spacing: .02em;
  color: var(--frost);
}

.page-contact .ct-card p {
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.78;
  color: rgba(247, 250, 252, .82);
}

.page-contact .ct-card__link {
  font-size: 14px;
  letter-spacing: .04em;
}

/* ---------- 通信与邮寄 ---------- */
.page-contact .ct-arrive {
  position: relative;
  padding-bottom: 0;
}

.page-contact .ct-arrive__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 4vw, 56px);
  align-items: start;
  padding-bottom: clamp(30px, 5vw, 60px);
}

.page-contact .ct-arrive__text p {
  max-width: 38em;
}

.page-contact .ct-arrive__address {
  display: block;
  margin: 20px 0 26px;
  padding-left: 20px;
  border-left: 3px solid var(--gold);
  font-family: var(--font-display);
  font-style: normal;
  font-size: clamp(1.15rem, 2.4vw, 1.6rem);
  line-height: 1.55;
  letter-spacing: .02em;
  color: var(--frost);
}

.page-contact .ct-arrive__meta {
  margin: 0;
  display: grid;
  gap: 12px;
}

.page-contact .ct-arrive__meta > div {
  display: grid;
  grid-template-columns: 96px minmax(0, 1fr);
  gap: 14px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--ct-line);
}

.page-contact .ct-arrive__meta dt {
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--sky);
}

.page-contact .ct-arrive__meta dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: rgba(247, 250, 252, .86);
}

.page-contact .ct-arrive__side {
  padding: clamp(22px, 3vw, 30px);
  background: rgba(10, 37, 64, .6);
  border-top: 2px solid var(--ct-gold-line);
  border-radius: var(--ct-radius);
}

.page-contact .ct-arrive__side-title {
  margin: 0 0 16px;
  font-family: var(--font-num);
  font-size: 20px;
  font-weight: 700;
  letter-spacing: .06em;
  color: var(--gold);
}

.page-contact .ct-arrive__links {
  list-style: none;
  margin: 0 0 18px;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-contact .ct-arrive__links .cf-link {
  font-size: 15px;
  line-height: 1.6;
}

.page-contact .ct-arrive__meta-note {
  margin: 0;
  font-size: 13px;
  line-height: 1.75;
  color: rgba(168, 212, 240, .72);
}

.page-contact .ct-sky {
  display: block;
  width: 100%;
  height: clamp(70px, 10vw, 140px);
  color: var(--lake-bright);
  opacity: .5;
}

/* ---------- 桌面端布局 ---------- */
@media (min-width: 720px) {
  .page-contact .ct-channel {
    grid-template-columns: 108px minmax(0, 1.05fr) minmax(0, .95fr);
    align-items: baseline;
  }

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

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

@media (min-width: 900px) {
  .page-contact .ct-hero__stage {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, .88fr);
    gap: clamp(36px, 5vw, 72px);
  }

  .page-contact .ct-coop__head {
    grid-template-columns: minmax(0, .95fr) minmax(0, 1.05fr);
  }

  .page-contact .ct-media__grid {
    grid-template-columns: minmax(0, .85fr) minmax(0, 1.15fr);
    gap: clamp(36px, 5vw, 72px);
  }

  .page-contact .ct-arrive__inner {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
  }
}

@media (min-width: 1080px) {
  .page-contact .ct-coop__panels {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  }
}

@media (max-width: 480px) {
  .page-contact .ct-channel {
    padding-left: 14px;
  }

  .page-contact .ct-media__item {
    grid-template-columns: 36px minmax(0, 1fr);
    gap: 12px;
  }

  .page-contact .ct-arrive__meta > div {
    grid-template-columns: 1fr;
    gap: 4px;
  }
}

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

  .page-contact .ct-card:hover,
  .page-contact .ct-media__item:hover,
  .page-contact .ct-filter__btn:hover {
    transform: none;
  }
}