.page-contact {
  --pc-line: rgba(201, 212, 226, 0.22);
  --pc-line-soft: rgba(11, 18, 32, 0.10);
}

/* ---------- 封面 ---------- */
.page-contact .pc-hero {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(120% 90% at 88% 6%, rgba(10, 132, 255, 0.30), transparent 58%),
    linear-gradient(158deg, var(--sd-ink) 0%, var(--sd-obsidian) 58%, #0a1020 100%);
  color: var(--sd-mist);
  padding: clamp(1.8rem, 5vw, 3rem) 0 clamp(2.4rem, 6vw, 4.4rem);
}

.page-contact .pc-hero::after {
  content: "";
  position: absolute;
  top: -28%;
  right: -12%;
  width: min(600px, 62%);
  height: 168%;
  background: linear-gradient(180deg, rgba(10, 132, 255, 0.20), rgba(255, 107, 0, 0.06));
  transform: rotate(8deg);
  pointer-events: none;
}

.page-contact .pc-hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.8rem, 4vw, 3rem);
}

.page-contact .pc-hero__title {
  font-family: var(--sd-font-display);
  font-size: clamp(2.2rem, 7.4vw, 4.4rem);
  font-weight: 800;
  line-height: 1.02;
  letter-spacing: 0.01em;
  margin: 0.5rem 0 0;
  color: #ffffff;
}

.page-contact .pc-hero__lead {
  max-width: 46ch;
  margin: 1.1rem 0 0;
  font-size: clamp(1rem, 2.1vw, 1.12rem);
  line-height: 1.8;
  color: rgba(244, 247, 252, 0.82);
}

.page-contact .pc-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 0.85rem;
  margin: 1.5rem 0 0;
  padding-top: 1rem;
  border-top: 1px solid var(--pc-line);
}

.page-contact .pc-hero__meta .sd-index {
  color: rgba(201, 212, 226, 0.78);
  border-left: 2px solid var(--sd-orange);
  padding-left: 0.55rem;
}

.page-contact .pc-hero__figure {
  margin: 0;
  border-radius: var(--sd-radius-lg);
  overflow: hidden;
  border: 1px solid rgba(201, 212, 226, 0.18);
}

.page-contact .sd-media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- 通用标题组 ---------- */
.page-contact .pc-section-head {
  max-width: 62ch;
  margin-bottom: clamp(1.4rem, 3vw, 2.2rem);
}

.page-contact .pc-h2 {
  font-family: var(--sd-font-display);
  font-size: clamp(1.65rem, 4vw, 2.5rem);
  font-weight: 700;
  line-height: 1.14;
  letter-spacing: 0.01em;
  margin: 0.4rem 0 0.7rem;
}

.page-contact .pc-lead {
  max-width: 58ch;
  margin: 0;
  font-size: clamp(0.98rem, 1.9vw, 1.05rem);
  line-height: 1.8;
  opacity: 0.86;
}

/* ---------- 三条通道 ---------- */
.page-contact .pc-channels {
  padding: clamp(2.4rem, 6vw, 4.4rem) 0 clamp(2.6rem, 6vw, 4.6rem);
}

.page-contact .pc-channels__grid {
  display: grid;
  grid-template-columns: 1fr;
  border-top: 1px solid var(--pc-line);
}

.page-contact .pc-channel {
  padding: clamp(1.5rem, 4vw, 2.1rem) 0;
  border-bottom: 1px solid var(--pc-line);
}

.page-contact .pc-channel:last-child {
  border-bottom: 0;
}

.page-contact .pc-channel__no {
  display: inline-block;
  min-width: 2.6rem;
  padding-top: 0.45rem;
  border-top: 2px solid var(--sd-orange);
  font-size: 0.8rem;
  letter-spacing: 0.16em;
  color: var(--sd-orange);
}

.page-contact .pc-channel__title {
  margin: 0.9rem 0 0.5rem;
  font-size: 1.22rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: #ffffff;
}

.page-contact .pc-channel__value {
  margin: 0 0 0.9rem;
  font-size: clamp(1.02rem, 3.4vw, 1.32rem);
  line-height: 1.5;
  letter-spacing: -0.01em;
  color: var(--sd-blue);
  overflow-wrap: anywhere;
}

.page-contact .pc-channel__desc {
  margin: 0;
  font-size: 0.96rem;
  line-height: 1.8;
  color: rgba(244, 247, 252, 0.78);
}

.page-contact .pc-channel__list {
  list-style: none;
  margin: 1rem 0 0;
  padding: 0;
  display: grid;
  gap: 0.5rem;
}

.page-contact .pc-channel__list li {
  position: relative;
  padding-left: 1.05rem;
  font-size: 0.93rem;
  line-height: 1.6;
  color: rgba(244, 247, 252, 0.86);
}

.page-contact .pc-channel__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 6px;
  height: 6px;
  background: var(--sd-blue);
  transform: rotate(45deg);
}

.page-contact .pc-channel__hint {
  margin: 1rem 0 0;
  padding-left: 0.75rem;
  border-left: 2px solid rgba(255, 107, 0, 0.55);
  font-size: 0.88rem;
  line-height: 1.7;
  color: rgba(201, 212, 226, 0.8);
}

.page-contact .pc-channel__action {
  margin-top: 1.2rem;
}

/* ---------- 联系地址 ---------- */
.page-contact .pc-address {
  padding: clamp(2.4rem, 6vw, 4.2rem) 0;
}

.page-contact .pc-address__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.6rem, 4vw, 3rem);
}

.page-contact .pc-address__card {
  background: #ffffff;
  border: 1px solid var(--pc-line-soft);
  border-radius: var(--sd-radius-lg);
  padding: clamp(1.5rem, 4vw, 2.4rem);
  box-shadow: 0 28px 60px -46px rgba(11, 18, 32, 0.55);
}

.page-contact .pc-address__card .pc-h2 {
  color: var(--sd-text);
}

.page-contact .pc-address__value {
  margin: 0.4rem 0 1.1rem;
  font-size: clamp(1.05rem, 3.2vw, 1.28rem);
  line-height: 1.7;
  letter-spacing: 0.01em;
  color: var(--sd-text);
}

.page-contact .pc-address__note {
  margin: 0 0 0.9rem;
  font-size: 0.95rem;
  line-height: 1.8;
  color: var(--sd-text-soft);
  max-width: 52ch;
}

.page-contact .pc-address__note:last-child {
  margin-bottom: 0;
}

.page-contact .pc-address__mapwrap {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 0.9rem;
}

.page-contact .pc-address__map {
  width: 100%;
  height: auto;
  display: block;
  border-radius: var(--sd-radius-md);
  background: linear-gradient(150deg, rgba(232, 243, 255, 0.9), rgba(244, 247, 252, 0.6));
  border: 1px solid var(--pc-line-soft);
  padding: clamp(0.6rem, 1.6vw, 1rem);
}

.page-contact .pc-address__maplabel {
  margin: 0;
  font-size: 0.82rem;
  letter-spacing: 0.06em;
  color: var(--sd-text-soft);
}

/* ---------- 商务合作 ---------- */
.page-contact .pc-coop {
  padding: clamp(2.4rem, 6vw, 4.4rem) 0;
}

.page-contact .pc-coop__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.8rem, 4vw, 3rem);
  align-items: center;
}

.page-contact .pc-coop__steps {
  list-style: none;
  margin: 1.4rem 0 0;
  padding: 0;
  display: grid;
  gap: 0.9rem;
  counter-reset: none;
}

.page-contact .pc-step {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.85rem;
  align-items: start;
  padding-top: 0.85rem;
  border-top: 1px solid rgba(201, 212, 226, 0.24);
  font-size: 0.96rem;
  line-height: 1.75;
  color: rgba(244, 247, 252, 0.84);
}

.page-contact .pc-step__no {
  font-size: 0.8rem;
  letter-spacing: 0.14em;
  color: var(--sd-gold);
  padding-top: 0.15rem;
}

.page-contact .pc-coop__action {
  margin-top: 1.6rem;
}

.page-contact .pc-coop__figure {
  margin: 0;
  border-radius: var(--sd-radius-lg);
  overflow: hidden;
  border: 1px solid rgba(201, 212, 226, 0.2);
}

/* ---------- 回复节奏 ---------- */
.page-contact .pc-reply {
  padding: clamp(2.4rem, 6vw, 4.2rem) 0;
}

.page-contact .pc-reply__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.6rem, 4vw, 2.6rem);
}

.page-contact .pc-reply__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--pc-line-soft);
  border-radius: var(--sd-radius-md);
  overflow: hidden;
}

.page-contact .pc-reply__item {
  background: #ffffff;
  padding: clamp(1.1rem, 3vw, 1.5rem);
}

.page-contact .pc-reply__k {
  display: inline-block;
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  color: var(--sd-blue);
  border-bottom: 2px solid var(--sd-blue);
  padding-bottom: 0.25rem;
  margin-bottom: 0.75rem;
}

.page-contact .pc-reply__v {
  margin: 0;
  font-size: 0.96rem;
  line-height: 1.8;
  color: var(--sd-text);
}

.page-contact .pc-reply__prep {
  background: var(--sd-ink);
  color: var(--sd-mist);
  border-radius: var(--sd-radius-lg);
  padding: clamp(1.4rem, 3.5vw, 2rem);
}

.page-contact .pc-reply__prep-title {
  margin: 0 0 1rem;
  font-family: var(--sd-font-display);
  font-size: clamp(1.1rem, 2.6vw, 1.32rem);
  font-weight: 700;
  letter-spacing: 0.02em;
  color: #ffffff;
}

.page-contact .pc-reply__prep-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.7rem;
}

.page-contact .pc-reply__prep-list li {
  position: relative;
  padding-left: 1.2rem;
  font-size: 0.93rem;
  line-height: 1.7;
  color: rgba(244, 247, 252, 0.82);
}

.page-contact .pc-reply__prep-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.6em;
  width: 8px;
  height: 2px;
  background: var(--sd-orange);
}

/* ---------- 相关入口 ---------- */
.page-contact .pc-next {
  padding: clamp(2.2rem, 5.5vw, 3.8rem) 0 clamp(2.6rem, 6vw, 4rem);
}

.page-contact .pc-next__title {
  color: #ffffff;
  margin-bottom: clamp(1.2rem, 3vw, 1.8rem);
}

.page-contact .pc-next__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: rgba(201, 212, 226, 0.2);
  border-radius: var(--sd-radius-md);
  overflow: hidden;
}

.page-contact .pc-next__link {
  display: block;
  padding: clamp(1.1rem, 3vw, 1.5rem);
  background: var(--sd-ink);
  text-decoration: none;
  transition: background 200ms ease, transform 200ms ease;
}

.page-contact .pc-next__link-title {
  display: block;
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--sd-blue);
  margin-bottom: 0.4rem;
}

.page-contact .pc-next__link-desc {
  display: block;
  font-size: 0.9rem;
  line-height: 1.7;
  color: rgba(201, 212, 226, 0.8);
}

.page-contact .pc-next__link:hover,
.page-contact .pc-next__link:focus-visible {
  background: var(--sd-obsidian);
}

.page-contact .pc-next__link:focus-visible {
  outline: 2px solid var(--sd-orange);
  outline-offset: -2px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-contact .pc-reply__grid {
    grid-template-columns: 1.05fr 0.95fr;
    align-items: start;
  }

  .page-contact .pc-next__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 900px) {
  .page-contact .pc-hero__grid {
    grid-template-columns: 1.06fr 0.94fr;
    align-items: center;
  }

  .page-contact .pc-channels__grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .page-contact .pc-channel {
    padding: clamp(1.9rem, 3vw, 2.4rem) clamp(1.1rem, 2.4vw, 2rem);
    border-bottom: 0;
    border-left: 1px solid var(--pc-line);
  }

  .page-contact .pc-channel:first-child {
    border-left: 0;
    padding-left: 0;
  }

  .page-contact .pc-channel:last-child {
    padding-right: 0;
  }

  .page-contact .pc-address__grid {
    grid-template-columns: 0.98fr 1.02fr;
    align-items: stretch;
  }

  .page-contact .pc-coop__grid {
    grid-template-columns: 1fr 1fr;
  }

  .page-contact .pc-next__grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .pc-next__link {
    transition: none;
  }
}