.page-contact {
  padding-bottom: var(--sec);
}

/* ---------- 首屏 ---------- */
.page-contact .consult-head {
  display: grid;
  gap: clamp(28px, 5vw, 48px);
  align-items: end;
  padding-block: clamp(22px, 4vw, 46px) clamp(56px, 8vw, 104px);
}

.page-contact .consult-head__main {
  display: flex;
  flex-direction: column;
  gap: clamp(14px, 2vw, 20px);
  max-width: 40em;
}

.page-contact .page-head__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(34px, 6.4vw, 74px);
  line-height: 1.06;
  letter-spacing: -0.02em;
  color: var(--bone);
}

.page-contact .page-head__lede {
  margin: 0;
  max-width: 36em;
  font-size: clamp(15px, 1.1vw, 17px);
  line-height: 1.85;
  color: var(--bone);
  opacity: 0.78;
}

.page-contact .consult-head__art .media__frame {
  border: 1px solid var(--line);
  overflow: hidden;
  aspect-ratio: 16 / 11;
}

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

@media (min-width: 960px) {
  .page-contact .consult-head {
    grid-template-columns: minmax(0, 1.5fr) minmax(210px, 0.62fr);
    gap: clamp(32px, 5vw, 88px);
  }
  .page-contact .consult-head__art .media__frame {
    aspect-ratio: 9 / 11;
  }
}

/* ---------- 三条渠道 ---------- */
.page-contact .channels {
  display: grid;
  gap: clamp(16px, 2vw, 24px);
  margin-top: clamp(28px, 4vw, 48px);
}

.page-contact .channel {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: clamp(20px, 2.4vw, 34px);
  background: linear-gradient(180deg, rgba(34, 48, 107, 0.45) 0%, rgba(6, 8, 15, 0.08) 100%);
  border: 1px solid var(--line);
  transition: border-color 0.26s ease;
}

.page-contact .channel::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -1px;
  width: 0;
  height: 1px;
  background: var(--cyan);
  transition: width 0.3s ease;
}

.page-contact .channel:hover,
.page-contact .channel:focus-within {
  border-color: rgba(53, 230, 240, 0.42);
}

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

.page-contact .channel__idx {
  margin: 0;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--cyan);
}

.page-contact .channel__label {
  margin: 0;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--mist);
}

.page-contact .channel__value {
  margin: 4px 0 2px;
  padding-bottom: 10px;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(17px, 2.2vw, 23px);
  font-weight: 700;
  line-height: 1.3;
  color: var(--amber);
  overflow-wrap: anywhere;
  user-select: all;
  -webkit-user-select: all;
  border-bottom: 1px dashed var(--line);
}

.page-contact .channel--mail .channel__value {
  font-size: clamp(18px, 2.6vw, 29px);
}

.page-contact .channel--phone .channel__value {
  color: var(--cyan);
}

.page-contact .channel--addr .channel__value {
  font-family: var(--font-body);
  font-size: clamp(15px, 1.5vw, 17px);
  font-weight: 600;
  line-height: 1.65;
  color: var(--bone);
}

.page-contact .channel__desc {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--bone);
  opacity: 0.76;
}

.page-contact .channel__hint {
  margin-top: auto;
  padding-top: 14px;
  max-height: 34em;
  opacity: 1;
  overflow: hidden;
  border-top: 1px solid var(--line);
  transition: max-height 0.3s ease, opacity 0.3s ease, padding-top 0.3s ease, border-color 0.3s ease;
}

.page-contact .channel__hint-title {
  margin: 0 0 8px;
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--cyan);
}

.page-contact .channel__list {
  display: grid;
  gap: 6px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .channel__list li {
  position: relative;
  padding-left: 14px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--mist);
}

.page-contact .channel__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.75em;
  width: 6px;
  height: 1px;
  background: var(--mist);
}

@media (min-width: 960px) {
  .page-contact .channels {
    grid-template-columns: repeat(12, minmax(0, 1fr));
    gap: clamp(18px, 1.8vw, 26px);
  }
  .page-contact .channel--mail {
    grid-column: 1 / span 6;
  }
  .page-contact .channel--phone {
    grid-column: 7 / span 3;
    margin-top: clamp(30px, 4vw, 64px);
  }
  .page-contact .channel--addr {
    grid-column: 10 / span 3;
    margin-top: clamp(60px, 7vw, 118px);
  }
}

@media (hover: hover) and (pointer: fine) and (min-width: 960px) {
  .page-contact .channel__hint {
    max-height: 0;
    opacity: 0;
    padding-top: 0;
    border-top-color: transparent;
  }
  .page-contact .channel:hover .channel__hint,
  .page-contact .channel:focus-within .channel__hint {
    max-height: 34em;
    opacity: 1;
    padding-top: 14px;
    border-top-color: var(--line);
  }
}

/* ---------- 受理范围与响应节奏 ---------- */
.page-contact .scope {
  display: grid;
  gap: clamp(28px, 4vw, 44px);
}

.page-contact .scope__lead {
  margin: 0 0 clamp(20px, 3vw, 32px);
  max-width: 34em;
  font-size: 16px;
  line-height: 1.85;
  color: var(--bone);
  opacity: 0.8;
}

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

.page-contact .scope__order li {
  display: flex;
  gap: clamp(14px, 2vw, 26px);
  padding: clamp(16px, 2.2vw, 24px) 0;
  border-bottom: 1px solid var(--line);
}

.page-contact .scope__num {
  flex: 0 0 auto;
  padding-top: 3px;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--cyan);
}

.page-contact .scope__body h3 {
  margin: 0 0 6px;
  font-size: 17px;
  font-weight: 700;
  color: var(--bone);
}

.page-contact .scope__body p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--mist);
}

.page-contact .scope__side {
  display: flex;
  flex-direction: column;
  gap: clamp(18px, 2.4vw, 30px);
  padding-top: 6px;
}

.page-contact .scope__side .stat {
  margin: 0;
}

.page-contact .scope__side .stat__value {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(34px, 4.4vw, 58px);
  font-weight: 700;
  line-height: 1;
  color: var(--lime);
}

.page-contact .scope__side .stat__value--small {
  font-size: clamp(20px, 2.6vw, 32px);
  color: var(--bone);
}

.page-contact .scope__side .stat__unit {
  margin-left: 8px;
  font-size: 0.4em;
  font-weight: 500;
  letter-spacing: 0.06em;
  color: var(--mist);
}

.page-contact .scope__side .stat__label {
  margin: 10px 0 0;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--mist);
}

@media (min-width: 960px) {
  .page-contact .scope {
    grid-template-columns: minmax(0, 1.45fr) minmax(190px, 0.55fr);
    gap: clamp(36px, 5vw, 88px);
    align-items: start;
  }
  .page-contact .scope__side {
    padding-left: clamp(20px, 2.4vw, 32px);
    border-left: 1px solid var(--line);
  }
}

/* ---------- 商务合作方向 ---------- */
.page-contact .coop-list {
  margin: clamp(28px, 4vw, 44px) 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.page-contact .coop-item {
  display: grid;
  grid-template-columns: 20px minmax(0, 1fr);
  gap: 0 clamp(10px, 1.6vw, 20px);
  padding: clamp(20px, 3vw, 34px) 0;
  border-bottom: 1px solid var(--line);
}

.page-contact .coop-item__dash {
  display: block;
  width: 100%;
  max-width: 28px;
  height: 1px;
  margin-top: 12px;
  background: var(--cyan);
  transition: width 0.26s ease, background-color 0.26s ease;
}

.page-contact .coop-item:hover .coop-item__dash,
.page-contact .coop-item:focus-within .coop-item__dash {
  width: 100%;
  background: var(--amber);
}

.page-contact .coop-item__title {
  margin: 0 0 8px;
  font-size: clamp(19px, 2.2vw, 26px);
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--bone);
}

.page-contact .coop-item__line {
  margin: 0;
  max-width: 46em;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--bone);
  opacity: 0.8;
}

.page-contact .coop-item__more {
  margin: 10px 0 0;
  max-width: 44em;
  font-size: 14px;
  line-height: 1.8;
  color: var(--mist);
}

.page-contact .coop-item__link {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 230, 240, 0.4);
  transition: color 0.2s ease, border-color 0.2s ease;
}

.page-contact .coop-item__link:hover {
  color: var(--bone);
  border-bottom-color: var(--bone);
}

@media (min-width: 720px) {
  .page-contact .coop-item {
    grid-template-columns: 44px minmax(0, 1fr);
  }
}

@media (hover: hover) and (pointer: fine) {
  .page-contact .coop-item__more {
    margin-top: 0;
    max-height: 0;
    opacity: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, opacity 0.3s ease, margin-top 0.3s ease;
  }
  .page-contact .coop-item:hover .coop-item__more,
  .page-contact .coop-item:focus-within .coop-item__more {
    margin-top: 10px;
    max-height: 14em;
    opacity: 1;
  }
}

/* ---------- 服务范围与站点信息 ---------- */
.page-contact .region {
  display: grid;
  gap: clamp(28px, 4vw, 44px);
}

.page-contact .region__mark {
  display: block;
  width: 42px;
  height: 2px;
  margin-bottom: 18px;
  background: var(--gobi);
}

.page-contact .region__lead {
  margin: 16px 0 clamp(20px, 3vw, 30px);
  max-width: 34em;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--bone);
  opacity: 0.8;
}

.page-contact .region__facts {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 1px;
  margin: 0;
  padding: 0;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-contact .region__fact {
  padding: 16px 18px;
  background: var(--ink-900);
}

.page-contact .region__fact dt {
  margin-bottom: 6px;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--mist);
}

.page-contact .region__fact dd {
  margin: 0;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 15px;
  color: var(--amber);
}

.page-contact .region__fact:last-child dd {
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--bone);
}

.page-contact .region__art .media__frame {
  border: 1px solid var(--line);
  overflow: hidden;
}

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

@media (min-width: 960px) {
  .page-contact .region {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: clamp(36px, 5vw, 80px);
    align-items: center;
  }
}

/* ---------- 来信前的准备 ---------- */
.page-contact .prep-list {
  display: grid;
  gap: 1px;
  margin: clamp(28px, 4vw, 44px) 0 0;
  padding: 0;
  list-style: none;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-contact .prep-list li {
  display: flex;
  gap: 14px;
  padding: clamp(18px, 2.4vw, 26px);
  background: var(--ink-900);
  font-size: 15px;
  line-height: 1.8;
  color: var(--bone);
  opacity: 0.86;
}

.page-contact .prep-list li::before {
  content: "";
  flex: 0 0 7px;
  width: 7px;
  height: 7px;
  margin-top: 10px;
  background: var(--cyan);
}

.page-contact .prep-list li:nth-child(2)::before {
  background: var(--amber);
}

.page-contact .prep-list li:nth-child(3)::before {
  background: var(--lime);
}

.page-contact .prep-list li:nth-child(4)::before {
  background: var(--gobi);
}

.page-contact .prep-foot {
  margin: clamp(20px, 3vw, 30px) 0 0;
  max-width: 46em;
  font-size: 14.5px;
  line-height: 1.9;
  color: var(--mist);
}

.page-contact .prep-foot a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 230, 240, 0.35);
  transition: color 0.2s ease, border-color 0.2s ease;
}

.page-contact .prep-foot a:hover {
  color: var(--bone);
  border-bottom-color: var(--bone);
}

@media (min-width: 780px) {
  .page-contact .prep-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .channel,
  .page-contact .channel::after,
  .page-contact .channel__hint,
  .page-contact .coop-item__dash,
  .page-contact .coop-item__more,
  .page-contact .coop-item__link,
  .page-contact .prep-foot a {
    transition: none;
  }
}