.page-contact {
  padding-bottom: clamp(40px, 6vw, 88px);
}

.page-contact .contact-hero {
  padding-top: clamp(18px, 3vw, 34px);
}

.page-contact .contact-hero__inner {
  display: grid;
  gap: clamp(22px, 3.2vw, 44px);
}

.page-contact .contact-hero__copy {
  display: grid;
  gap: 16px;
  align-content: start;
}

.page-contact .contact-hero__flags {
  list-style: none;
  margin: 4px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

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

/* ---------- 渠道横向带 ---------- */
.page-contact .channel-band {
  list-style: none;
  margin: clamp(18px, 2.6vw, 30px) 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  overflow: hidden;
}

.page-contact .channel-row {
  display: grid;
  gap: 10px;
  padding: clamp(18px, 2.6vw, 26px) clamp(16px, 2.2vw, 30px);
  background: var(--ink-2);
  transition: background var(--t) var(--ease), box-shadow var(--t) var(--ease);
}

.page-contact .channel-row:hover,
.page-contact .channel-row:focus-within {
  background:
    linear-gradient(100deg, var(--cyan-a08), transparent 58%),
    var(--ink-2);
  box-shadow: inset 3px 0 0 var(--cyan);
}

.page-contact .channel-row__idx {
  font-family: var(--font-num);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .2em;
  line-height: 1;
  color: var(--cyan);
}

.page-contact .channel-row__main {
  display: grid;
  gap: 5px;
  min-width: 0;
}

.page-contact .channel-row__label {
  font-size: 12px;
  letter-spacing: .18em;
  line-height: 1.4;
  color: var(--mist);
}

.page-contact .channel-row__value {
  font-family: var(--font-num);
  font-size: clamp(17px, 2.6vw, 23px);
  font-weight: 600;
  line-height: 1.25;
  color: var(--white);
  overflow-wrap: anywhere;
}

.page-contact .channel-row__note {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--mist);
}

.page-contact .channel-row__tag {
  justify-self: start;
  align-self: center;
}

/* ---------- 反馈流程 ---------- */
.page-contact .feedback__grid {
  display: grid;
  gap: clamp(22px, 3vw, 40px);
}

.page-contact .feedback__aside {
  display: grid;
  gap: 14px;
  align-content: start;
}

.page-contact .feedback__figure {
  margin: 6px 0 0;
}

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

.page-contact .step {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 4px 16px;
  padding: clamp(16px, 2.2vw, 24px);
  background: var(--ink-2);
  transition: background var(--t) var(--ease);
}

.page-contact .step:hover {
  background: var(--ink-3, var(--ink-2));
}

.page-contact .step__no {
  font-family: var(--font-num);
  font-size: clamp(20px, 2.6vw, 26px);
  font-weight: 700;
  line-height: 1.05;
  color: var(--cyan);
}

.page-contact .step__body {
  display: grid;
  gap: 6px;
  min-width: 0;
}

.page-contact .step__title {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: .02em;
  line-height: 1.5;
  color: var(--cold);
}

.page-contact .step__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--mist);
}

/* ---------- 服务时段带 ---------- */
.page-contact .window-band {
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  overflow: hidden;
}

.page-contact .window-band__cell {
  display: grid;
  gap: 8px;
  align-content: start;
  padding: clamp(20px, 2.8vw, 30px) clamp(18px, 2.4vw, 28px);
  background: var(--ink-2);
}

.page-contact .window-band__key {
  font-size: 12px;
  letter-spacing: .2em;
  line-height: 1.4;
  color: var(--mist);
}

.page-contact .window-band__value {
  font-family: var(--font-num);
  font-size: clamp(26px, 4vw, 38px);
  font-weight: 700;
  line-height: 1.05;
  color: var(--white);
}

.page-contact .window-band__sub {
  font-size: 13px;
  line-height: 1.6;
  color: var(--mist);
}

/* ---------- 备案与相关说明 ---------- */
.page-contact .site-facts__inner {
  display: grid;
  gap: clamp(24px, 3vw, 40px);
}

.page-contact .site-facts__col {
  display: grid;
  gap: 2px;
  align-content: start;
  min-width: 0;
}

.page-contact .site-facts__list {
  margin: 14px 0 0;
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  overflow: hidden;
}

.page-contact .site-facts__row {
  display: grid;
  gap: 4px;
  padding: 14px clamp(14px, 2vw, 20px);
  background: var(--ink-2);
}

.page-contact .site-facts__row dt {
  font-size: 12px;
  letter-spacing: .18em;
  line-height: 1.4;
  color: var(--mist);
}

.page-contact .site-facts__row dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.6;
  color: var(--cold);
  overflow-wrap: anywhere;
}

.page-contact .site-facts__note {
  margin: 12px 0 0;
  font-size: 13px;
  line-height: 1.7;
}

.page-contact .cross-links {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  overflow: hidden;
}

.page-contact .cross-links__link {
  display: block;
  padding: 15px clamp(14px, 2vw, 20px);
  background: var(--ink-2);
  color: var(--cold);
  font-size: 14px;
  line-height: 1.5;
  text-decoration: none;
  transition: background var(--t) var(--ease), color var(--t) var(--ease), padding-left var(--t) var(--ease);
}

.page-contact .cross-links__link:hover,
.page-contact .cross-links__link:focus-visible {
  background: var(--cyan-a08);
  color: var(--cyan);
  padding-left: calc(clamp(14px, 2vw, 20px) + 8px);
}

/* ---------- 合作与建议 ---------- */
.page-contact .partner__body {
  display: grid;
  gap: clamp(16px, 2.2vw, 24px);
}

.page-contact .partner__item {
  display: grid;
  gap: 9px;
  align-content: start;
  padding: clamp(14px, 2vw, 20px) 0 0;
  border-top: 1px solid var(--line-2);
}

.page-contact .partner__item:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-contact .partner__item .tag {
  justify-self: start;
}

.page-contact .partner__name {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--cold);
}

.page-contact .partner__item p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--mist);
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-contact .window-band {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

  .page-contact .partner__item {
    border-top: 0;
    padding-top: 0;
    border-left: 1px solid var(--line-2);
    padding-left: clamp(14px, 2vw, 22px);
  }

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

@media (min-width: 900px) {
  .page-contact .contact-hero__inner {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, .8fr);
    align-items: end;
  }

  .page-contact .channel-row {
    grid-template-columns: 58px minmax(0, .95fr) minmax(0, 1.45fr) auto;
    align-items: center;
    gap: 22px;
  }

  .page-contact .channel-row__tag {
    justify-self: end;
  }

  .page-contact .feedback__grid {
    grid-template-columns: minmax(0, .85fr) minmax(0, 1.15fr);
    align-items: start;
  }

  .page-contact .site-facts__inner {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
    align-items: start;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .channel-row,
  .page-contact .step,
  .page-contact .cross-links__link {
    transition: none;
  }

  .page-contact .cross-links__link:hover,
  .page-contact .cross-links__link:focus-visible {
    padding-left: clamp(14px, 2vw, 20px);
  }
}