.page-contact {
  --ct-rule: rgba(13, 13, 14, 0.12);
  --ct-rule-dark: rgba(248, 246, 242, 0.14);
  --ct-soft: rgba(201, 169, 110, 0.14);
  background: var(--paper);
  color: var(--ink);
  overflow-x: hidden;
}

.page-contact a {
  color: inherit;
}

/* ---------- 首屏 ---------- */

.page-contact .ct-hero {
  position: relative;
  padding: clamp(1.2rem, 3.5vw, 2rem) 0 clamp(2.4rem, 6vw, 4.4rem);
  isolation: isolate;
}

.page-contact .ct-hero::before {
  content: "";
  position: absolute;
  top: clamp(3.5rem, 9vw, 6rem);
  right: -6%;
  width: min(620px, 78vw);
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--gold));
  transform: rotate(-9deg);
  transform-origin: right center;
  opacity: 0.6;
  z-index: -1;
  pointer-events: none;
}

.page-contact .ct-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.6rem, 4vw, 2.6rem);
  margin-top: clamp(1.6rem, 4.5vw, 2.8rem);
  align-items: end;
}

.page-contact .ct-hero__title {
  margin: 0.9rem 0 0;
  font-family: var(--font-display);
  font-weight: 250;
  font-size: clamp(2.15rem, 7.4vw, 4.4rem);
  line-height: 1.02;
  letter-spacing: -0.02em;
  max-width: 16ch;
}

.page-contact .ct-hero__lede {
  margin: 1.2rem 0 0;
  max-width: 48ch;
  font-size: 1rem;
  line-height: 1.85;
  color: var(--gray);
}

.page-contact .ct-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.7rem;
}

.page-contact .ct-hero__figure {
  position: relative;
  margin: 0;
  overflow: hidden;
  background: var(--night);
  border: 1px solid var(--ct-rule);
  clip-path: polygon(0 0, calc(100% - 38px) 0, 100% 38px, 100% 100%, 0 100%);
}

.page-contact .ct-hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.page-contact .ct-hero__cap {
  position: absolute;
  left: 0;
  bottom: 0;
  padding: 0.5rem 0.9rem;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--paper);
  background: rgba(16, 42, 67, 0.86);
}

/* ---------- 通用章节 ---------- */

.page-contact .ct-section {
  padding: clamp(2.4rem, 6.5vw, 4.6rem) 0;
  border-top: 1px solid var(--ct-rule);
}

.page-contact .ct-head__note {
  margin: 0.9rem 0 0;
  max-width: 56ch;
  color: var(--gray);
  line-height: 1.8;
}

/* ---------- 直接联系 ---------- */

.page-contact .ct-channels {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  margin-top: clamp(1.6rem, 4vw, 2.4rem);
  background: var(--ct-rule);
  border: 1px solid var(--ct-rule);
}

.page-contact .ct-channel {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  padding: clamp(1.4rem, 3.2vw, 2.2rem);
  background: var(--paper);
  transition: background-color 0.3s var(--ease);
}

.page-contact .ct-channel::after {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 0;
  height: 2px;
  background: var(--gold);
  transition: width 0.4s var(--ease);
}

.page-contact .ct-channel:hover,
.page-contact .ct-channel:focus-within {
  background: var(--sand);
}

.page-contact .ct-channel:hover::after,
.page-contact .ct-channel:focus-within::after {
  width: 100%;
}

.page-contact .ct-channel__tag {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--gray);
}

.page-contact .ct-channel__value {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(1.02rem, 2.4vw, 1.34rem);
  line-height: 1.35;
  letter-spacing: -0.01em;
  color: var(--ink);
  overflow-wrap: anywhere;
}

.page-contact .ct-channel__desc {
  margin: 0;
  color: var(--gray);
  font-size: 0.92rem;
  line-height: 1.8;
}

/* ---------- 合作咨询 ---------- */

.page-contact .ct-coop {
  position: relative;
  padding: clamp(2.6rem, 7vw, 5rem) 0;
  background: var(--night);
  color: var(--paper);
  overflow: hidden;
}

.page-contact .ct-coop::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--gold) 40%, transparent);
  opacity: 0.75;
}

.page-contact .ct-coop__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.8rem, 4.5vw, 3.2rem);
  align-items: start;
}

.page-contact .ct-coop__body h2 {
  margin: 0.8rem 0 0;
  font-family: var(--font-display);
  font-weight: 250;
  font-size: clamp(1.75rem, 4.6vw, 2.9rem);
  line-height: 1.08;
  letter-spacing: -0.02em;
  max-width: 18ch;
}

.page-contact .ct-coop__lede {
  margin: 1.2rem 0 0;
  max-width: 44ch;
  color: var(--winter);
  line-height: 1.85;
}

.page-contact .ct-coop__list {
  list-style: none;
  margin: 1.7rem 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--ct-rule-dark);
  border-top: 1px solid var(--ct-rule-dark);
  border-bottom: 1px solid var(--ct-rule-dark);
}

.page-contact .ct-coop__list li {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.35rem;
  padding: 0.95rem 0;
  background: var(--night);
}

.page-contact .ct-coop__key {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gold);
}

.page-contact .ct-coop__txt {
  font-size: 0.95rem;
  line-height: 1.75;
  color: var(--paper);
  opacity: 0.86;
}

.page-contact .ct-coop__note {
  margin: 1.5rem 0 0;
  max-width: 48ch;
  font-size: 0.9rem;
  line-height: 1.8;
  color: var(--winter);
}

.page-contact .ct-coop__figure {
  margin: 0;
  position: relative;
  overflow: hidden;
  border: 1px solid var(--ct-rule-dark);
  clip-path: polygon(0 0, calc(100% - 30px) 0, 100% 30px, 100% 100%, 0 100%);
}

.page-contact .ct-coop__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.page-contact .ct-coop__cap {
  position: absolute;
  right: 0;
  bottom: 0;
  padding: 0.45rem 0.85rem;
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gold);
  background: var(--night-2);
}

/* ---------- 用户反馈 ---------- */

.page-contact .ct-feedback {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.4rem, 3.6vw, 2.6rem);
}

.page-contact .ct-feedback__head h2 {
  margin: 0.8rem 0 0;
  font-family: var(--font-display);
  font-weight: 250;
  font-size: clamp(1.7rem, 4.4vw, 2.6rem);
  line-height: 1.12;
  letter-spacing: -0.02em;
  max-width: 16ch;
}

.page-contact .ct-feedback__body p {
  margin: 0 0 1.1rem;
  max-width: 62ch;
  line-height: 1.85;
  color: var(--gray);
}

.page-contact .ct-feedback__hints {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  margin: 1.6rem 0;
  background: var(--ct-rule);
  border: 1px solid var(--ct-rule);
}

.page-contact .ct-hint {
  display: grid;
  gap: 0.6rem;
  padding: 1.1rem 1.2rem;
  background: var(--paper);
}

.page-contact .ct-hint p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.75;
  color: var(--gray);
}

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

.page-contact .ct-feedback__cta a {
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px solid var(--gold);
  padding-bottom: 1px;
  transition: color 0.25s var(--ease);
}

.page-contact .ct-feedback__cta a:hover {
  color: var(--gold);
}

/* ---------- 坐标地址 ---------- */

.page-contact .ct-map {
  padding: clamp(2.6rem, 7vw, 5rem) 0 clamp(3rem, 8vw, 5.6rem);
  border-top: 1px solid var(--ct-rule);
}

.page-contact .ct-map__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.8rem, 4.5vw, 3.4rem);
  align-items: start;
}

.page-contact .ct-map__body h2 {
  margin: 0.8rem 0 0;
  font-family: var(--font-display);
  font-weight: 250;
  font-size: clamp(1.7rem, 4.4vw, 2.6rem);
  line-height: 1.12;
  letter-spacing: -0.02em;
  max-width: 16ch;
}

.page-contact .ct-map__body > p {
  margin: 1.1rem 0 0;
  max-width: 52ch;
  color: var(--gray);
  line-height: 1.85;
}

.page-contact .ct-map__facts {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  margin: 1.7rem 0 0;
  border-top: 1px solid var(--ct-rule);
}

.page-contact .ct-map__fact {
  display: grid;
  grid-template-columns: 5.5rem minmax(0, 1fr);
  gap: 0.9rem;
  align-items: baseline;
  padding: 0.8rem 0;
  border-bottom: 1px solid var(--ct-rule);
}

.page-contact .ct-map__fact dt {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gray);
}

.page-contact .ct-map__fact dd {
  margin: 0;
  font-size: 0.98rem;
  line-height: 1.6;
  overflow-wrap: anywhere;
}

.page-contact .ct-map__visual {
  background: var(--night);
  border: 1px solid var(--night);
  padding: clamp(1rem, 3vw, 1.6rem);
  clip-path: polygon(0 0, calc(100% - 30px) 0, 100% 30px, 100% 100%, 0 100%);
}

.page-contact .ct-map__svg {
  display: block;
  width: 100%;
  height: auto;
}

.page-contact .ct-map__caption {
  margin: 1rem 0 0;
  font-size: 0.88rem;
  line-height: 1.8;
  color: var(--winter);
}

.page-contact .ct-map__caption a {
  color: var(--gold);
  text-decoration: none;
  border-bottom: 1px solid rgba(201, 169, 110, 0.5);
}

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

/* ---------- 响应式 ---------- */

@media (min-width: 640px) {
  .page-contact .ct-coop__list li {
    grid-template-columns: 9.5rem minmax(0, 1fr);
    align-items: baseline;
    gap: 1.2rem;
  }

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

  .page-contact .ct-map__facts .ct-map__fact:nth-child(odd) {
    padding-right: 1.4rem;
  }
}

@media (min-width: 780px) {
  .page-contact .ct-channels {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .ct-hero__grid {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
    gap: clamp(2rem, 5vw, 3.6rem);
  }

  .page-contact .ct-feedback {
    grid-template-columns: minmax(0, 0.78fr) minmax(0, 1fr);
    gap: clamp(2rem, 5vw, 3.6rem);
  }

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

@media (min-width: 960px) {
  .page-contact .ct-coop__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: center;
  }

  .page-contact .ct-map__grid {
    grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
    gap: clamp(2.4rem, 6vw, 4.4rem);
  }

  .page-contact .ct-coop__figure {
    margin-top: 1.5rem;
  }
}

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