.page-contact {
  padding-bottom: 72px;
}

/* ---------- 首屏：联系渠道 + 时段 ---------- */
.page-contact .contact-hero {
  display: grid;
  gap: 34px;
  margin-top: 26px;
}

.page-contact .contact-hero__copy h1 {
  margin: 14px 0 0;
  font-size: clamp(30px, 6.4vw, 50px);
  line-height: 1.14;
  letter-spacing: -0.02em;
  color: var(--mist);
  max-width: 20ch;
}

.page-contact .contact-hero__lead {
  margin: 18px 0 0;
  font-size: 17px;
  line-height: 1.78;
  color: var(--mist);
  opacity: 0.84;
  max-width: 44ch;
}

.page-contact .channel-card {
  margin-top: 30px;
  padding: 20px 22px 18px;
  border: 1px solid var(--line);
  border-radius: 18px 30px 18px 30px;
  background: linear-gradient(152deg, var(--cyan-08), transparent 58%);
  transition: border-color var(--dur) ease;
}

.page-contact .channel-card:hover {
  border-color: var(--cyan-32);
}

.page-contact .channel-card__row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 6px 14px;
  padding: 14px 0;
  border-bottom: 1px dashed var(--line-soft);
}

.page-contact .channel-card__row:last-of-type {
  border-bottom: 0;
}

.page-contact .channel-card__key {
  grid-column: 1 / -1;
  color: var(--steel);
}

.page-contact .channel-card__val {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 16px;
  line-height: 1.4;
  letter-spacing: 0.01em;
  color: var(--mist);
  overflow-wrap: anywhere;
}

.page-contact .channel-card__btn {
  justify-self: end;
  align-self: center;
  white-space: nowrap;
}

.page-contact .channel-card__note {
  margin: 14px 0 0;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--steel);
}

.page-contact .contact-hero__side {
  display: grid;
  gap: 18px;
  align-content: start;
}

.page-contact .contact-hero__figure {
  margin: 0;
  aspect-ratio: 16 / 9;
  border: 1px solid var(--line);
  border-radius: 22px;
  overflow: hidden;
}

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

/* 服务时段刻度带 */
.page-contact .shift-band {
  padding: 20px 22px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--arena);
}

.page-contact .shift-band__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 18px;
}

.page-contact .shift-band__badge {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--gold);
}

.page-contact .shift-band__track {
  position: relative;
  height: 24px;
  border-radius: var(--r-pill);
  background: var(--panel);
  box-shadow: inset 0 0 0 1px var(--line-soft);
}

.page-contact .shift-band__fill {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 14.2857%;
  width: 64.2857%;
  border-radius: var(--r-pill);
  background: linear-gradient(90deg, var(--orange), var(--gold));
  box-shadow: 0 0 20px rgba(255, 122, 26, 0.34);
  cursor: help;
}

.page-contact .shift-band__tip {
  position: absolute;
  left: 50%;
  bottom: calc(100% + 12px);
  transform: translate(-50%, 6px);
  opacity: 0;
  pointer-events: none;
  white-space: nowrap;
  padding: 5px 11px;
  border-radius: var(--r-pill);
  background: var(--cyan);
  color: var(--night);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  transition: opacity var(--dur-fast) ease, transform var(--dur-fast) ease;
}

.page-contact .shift-band__fill:hover .shift-band__tip,
.page-contact .shift-band__fill:focus-within .shift-band__tip {
  opacity: 1;
  transform: translate(-50%, 0);
}

.page-contact .shift-band__scale {
  display: flex;
  justify-content: space-between;
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--steel);
}

.page-contact .shift-band__note {
  margin: 14px 0 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--steel);
}

/* ---------- 通用章节 ---------- */
.page-contact .section {
  margin-top: 58px;
  padding-top: 46px;
  border-top: 1px solid var(--line-soft);
}

/* ---------- 服务地区 ---------- */
.page-contact .help-list {
  list-style: none;
  margin: 30px 0 0;
  padding: 0;
  display: grid;
  gap: 18px;
}

.page-contact .help-list__item {
  padding: 20px 22px;
  border: 1px solid var(--line-soft);
  border-left: 3px solid var(--cyan);
  border-radius: 6px 18px 18px 6px;
  background: linear-gradient(100deg, var(--cyan-08), transparent 52%);
  transition: border-color var(--dur) ease, transform var(--dur) ease;
}

.page-contact .help-list__item:hover {
  transform: translateX(4px);
  border-color: var(--cyan-32);
  border-left-color: var(--orange);
}

.page-contact .help-list__idx {
  color: var(--orange);
}

.page-contact .help-list__title {
  margin: 8px 0 8px;
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--mist);
}

.page-contact .help-list__text {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.74;
  color: var(--steel);
}

/* ---------- 内容互引 ---------- */
.page-contact .coop {
  margin-top: 30px;
  display: grid;
  gap: 24px;
}

.page-contact .coop__paths {
  display: grid;
  gap: 12px;
  align-content: start;
}

.page-contact .coop-path {
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--arena);
  overflow: hidden;
  transition: border-color var(--dur) ease;
}

.page-contact .coop-path[open] {
  border-color: var(--cyan-32);
}

.page-contact .coop-path:hover {
  border-color: var(--line-strong);
}

.page-contact .coop-path__summary {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 12px;
  padding: 16px 18px;
  cursor: pointer;
  list-style: none;
}

.page-contact .coop-path__summary::-webkit-details-marker {
  display: none;
}

.page-contact .coop-path__tag {
  color: var(--orange);
}

.page-contact .coop-path__title {
  font-size: 17px;
  font-weight: 700;
  color: var(--mist);
  letter-spacing: -0.01em;
}

.page-contact .coop-path__toggle {
  display: grid;
  place-items: center;
  width: 24px;
  height: 24px;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
  font-family: var(--font-mono);
  font-size: 15px;
  line-height: 1;
  color: var(--cyan);
  transition: transform var(--dur) ease, border-color var(--dur) ease;
}

.page-contact .coop-path[open] .coop-path__toggle {
  transform: rotate(45deg);
  border-color: var(--cyan);
}

.page-contact .coop-path__body {
  padding: 14px 18px 18px;
  border-top: 1px dashed var(--line-soft);
}

.page-contact .coop-path__body p {
  margin: 0 0 12px;
  font-size: 15px;
  line-height: 1.74;
  color: var(--steel);
}

.page-contact .coop-path__body ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 7px;
}

.page-contact .coop-path__body li {
  position: relative;
  padding-left: 16px;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--mist);
  opacity: 0.86;
}

.page-contact .coop-path__body li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.68em;
  width: 8px;
  height: 1px;
  background: var(--cyan);
}

.page-contact .coop__figure {
  margin: 0;
  aspect-ratio: 1 / 1;
  border: 1px solid var(--line);
  border-radius: 22px;
  overflow: hidden;
}

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

/* ---------- 信函往来 ---------- */
.page-contact .postal {
  margin-top: 28px;
  display: grid;
  gap: 16px;
}

.page-contact .postal__card {
  padding: 22px 24px;
  border: 1px solid var(--line);
  border-radius: 26px 14px 26px 14px;
  background: linear-gradient(160deg, var(--orange-16), transparent 62%);
}

.page-contact .postal__card--plain {
  background: var(--arena);
  border-radius: 14px 26px 14px 26px;
}

.page-contact .postal__addr {
  margin: 12px 0 0;
  font-size: 19px;
  font-weight: 700;
  line-height: 1.6;
  letter-spacing: -0.01em;
  color: var(--mist);
}

.page-contact .postal__hint {
  margin: 12px 0 0;
  font-size: 15px;
  line-height: 1.74;
  color: var(--steel);
}

.page-contact .postal__list {
  list-style: none;
  margin: 12px 0 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-contact .postal__list li {
  position: relative;
  padding-left: 18px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--mist);
  opacity: 0.88;
}

.page-contact .postal__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.7em;
  width: 9px;
  height: 1px;
  background: var(--orange);
}

/* ---------- 下一步 ---------- */
.page-contact .next-step__title {
  margin: 0 0 14px;
}

.page-contact .next-step__text {
  margin: 0;
  font-size: 16px;
  line-height: 1.86;
  color: var(--steel);
  max-width: 62ch;
}

.page-contact .next-step__text a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--cyan-32);
  transition: border-color var(--dur) ease, color var(--dur) ease;
}

.page-contact .next-step__text a:hover {
  color: var(--orange);
  border-bottom-color: var(--orange);
}

/* ---------- 备案窄条 ---------- */
.page-contact .filing {
  margin-top: 52px;
  padding: 18px 22px;
  border: 1px solid var(--line-soft);
  border-radius: 14px;
  background: var(--night);
  display: grid;
  gap: 14px;
}

.page-contact .filing__title {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--steel);
  text-transform: uppercase;
}

.page-contact .filing__list {
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 30px;
}

.page-contact .filing__list div {
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.page-contact .filing__list dt {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--steel);
}

.page-contact .filing__list dd {
  margin: 0;
  font-size: 13px;
  color: var(--mist);
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-contact .help-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
  }

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

  .page-contact .filing {
    grid-template-columns: auto minmax(0, 1fr);
    align-items: center;
    gap: 22px;
  }

  .page-contact .channel-card__val {
    font-size: 18px;
  }
}

@media (min-width: 960px) {
  .page-contact .contact-hero {
    grid-template-columns: minmax(0, 1.04fr) minmax(0, 0.96fr);
    gap: 52px;
    align-items: start;
    margin-top: 34px;
  }

  .page-contact .coop {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
    gap: 30px;
    align-items: start;
  }

  .page-contact .section {
    margin-top: 76px;
    padding-top: 56px;
  }
}

@media (max-width: 640px) {
  .page-contact .shift-band__tip {
    white-space: normal;
    width: 168px;
    text-align: center;
    line-height: 1.5;
  }

  .page-contact .shift-band__scale {
    font-size: 9.5px;
    letter-spacing: 0;
  }

  .page-contact .channel-card {
    padding: 18px 18px 16px;
    border-radius: 16px 22px 16px 22px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .help-list__item:hover {
    transform: none;
  }

  .page-contact .shift-band__fill,
  .page-contact .shift-band__tip,
  .page-contact .coop-path__toggle,
  .page-contact .help-list__item {
    transition: opacity var(--dur) ease;
  }

  .page-contact .coop-path[open] .coop-path__toggle {
    transform: none;
  }
}