.page-contact {
  --contact-rule: 4px;
  --contact-stack: clamp(28px, 4vw, 52px);
}

/* ---------- 面包屑与首屏 ---------- */
.page-contact .breadcrumb {
  padding-top: clamp(20px, 4vw, 40px);
}

.page-contact .contact-hero {
  padding-block: clamp(34px, 6vw, 82px) clamp(26px, 4vw, 52px);
}

.page-contact .contact-hero__inner {
  position: relative;
  padding-inline-end: clamp(0px, 5vw, 72px);
}

.page-contact .contact-hero__title {
  margin: 16px 0 0;
  font-size: clamp(2.2rem, 5.6vw, 4.2rem);
  line-height: 1;
  letter-spacing: -0.015em;
  font-weight: 800;
  color: var(--silver-050);
  max-width: 16em;
}

.page-contact .contact-hero__lede {
  margin-top: clamp(22px, 3vw, 34px);
  max-width: 58ch;
  color: var(--silver-300);
}

.page-contact .contact-hero__note {
  display: none;
  position: absolute;
  inset-block-start: 6px;
  inset-inline-end: 0;
  writing-mode: vertical-rl;
  text-orientation: upright;
  letter-spacing: 0.34em;
  font-size: var(--fs-1);
  color: var(--silver-300);
  margin: 0;
}

/* ---------- 左右分置主体 ---------- */
.page-contact .contact-body {
  padding-block: clamp(32px, 5vw, 64px);
}

.page-contact .contact-body__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(36px, 5vw, 76px);
  align-items: start;
}

.page-contact .contact-body__title {
  margin: 0 0 clamp(20px, 3vw, 32px);
}

.page-contact .channel {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 12px;
  padding: clamp(22px, 2.8vw, 32px);
  background: var(--panel-900);
  border: var(--contact-rule) solid var(--hairline-700);
  transition: border-color var(--dur-hover) ease;
}

.page-contact .channel:hover,
.page-contact .channel:focus-within {
  border-color: var(--cyan-400);
}

.page-contact .channel--email::before {
  content: "";
  position: absolute;
  top: calc(var(--contact-rule) * -1);
  left: calc(var(--contact-rule) * -1);
  right: calc(var(--contact-rule) * -1);
  height: var(--contact-rule);
  background: var(--grad-signal);
}

.page-contact .channel--phone {
  margin-top: clamp(24px, 3vw, 40px);
}

.page-contact .channel__label {
  margin: 0;
  font-size: var(--fs-1);
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--cyan-400);
}

.page-contact .channel--phone .channel__label {
  color: var(--violet-500);
}

.page-contact .channel__name {
  margin: 0;
  font-size: var(--fs-4);
  font-weight: 600;
  color: var(--silver-050);
}

.page-contact .channel__value {
  margin: 0;
  font-size: clamp(1.05rem, 2.6vw, 1.45rem);
  letter-spacing: 0.02em;
  color: var(--silver-050);
  word-break: break-all;
}

.page-contact .channel__desc {
  margin: 0;
  font-size: var(--fs-3);
  line-height: 1.75;
  color: var(--silver-300);
  max-width: 46ch;
}

.page-contact .channel__copy {
  margin-top: 4px;
}

/* ---------- 图像 ---------- */
.page-contact .contact-media {
  margin: clamp(28px, 4vw, 46px) 0 0;
}

.page-contact .contact-media--flow {
  margin: 0 0 clamp(28px, 4vw, 44px);
}

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

/* ---------- 地址与主体披露 ---------- */
.page-contact .contact-address {
  margin-top: var(--contact-stack);
  padding-inline-start: clamp(16px, 2.4vw, 24px);
  border-inline-start: var(--contact-rule) solid var(--hairline-700);
}

.page-contact .contact-address__title {
  margin: 0 0 10px;
  font-size: var(--fs-4);
  font-weight: 600;
  color: var(--silver-050);
}

.page-contact .contact-address__value {
  margin: 0 0 12px;
  font-size: var(--fs-3);
  color: var(--silver-050);
}

.page-contact .contact-address__note {
  margin: 0 0 10px;
  font-size: var(--fs-2);
  line-height: 1.75;
  color: var(--silver-300);
  max-width: 50ch;
}

.page-contact .contact-address__icp {
  margin: 0;
  font-size: var(--fs-2);
  color: var(--silver-300);
}

/* ---------- 安全提醒（琥珀） ---------- */
.page-contact .safety-note {
  margin-top: var(--contact-stack);
  padding: clamp(20px, 2.6vw, 30px);
  background: var(--wine-zone);
  border: 1px solid var(--hairline-700);
  border-inline-start: var(--rule-thick) solid var(--amber-400);
}

.page-contact .safety-note__title {
  margin: 0 0 14px;
  font-size: var(--fs-4);
  font-weight: 600;
  color: var(--amber-400);
}

.page-contact .safety-note__list {
  list-style: none;
  margin: 0 0 16px;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-contact .safety-note__list li {
  font-size: var(--fs-2);
  line-height: 1.75;
  color: var(--silver-300);
}

.page-contact .safety-note__list .mono {
  color: var(--silver-050);
}

.page-contact .safety-note__tail {
  margin: 0;
  font-size: var(--fs-2);
  line-height: 1.75;
  color: var(--silver-300);
}

/* ---------- 收录流程 ---------- */
.page-contact .contact-flow__head {
  margin-bottom: clamp(18px, 2.6vw, 30px);
}

.page-contact .flow__step {
  border-top: var(--rule) solid var(--hairline-700);
}

.page-contact .flow__step:last-child {
  border-bottom: var(--rule) solid var(--hairline-700);
}

.page-contact .flow__summary {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: baseline;
  gap: clamp(14px, 2vw, 24px);
  padding: clamp(18px, 2.4vw, 26px) 0;
  cursor: pointer;
  list-style: none;
}

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

.page-contact .flow__summary:focus-visible {
  outline: 2px solid var(--cyan-400);
  outline-offset: 3px;
}

.page-contact .flow__num {
  font-size: clamp(1.5rem, 3.2vw, 2.3rem);
  line-height: 1;
  font-weight: 500;
  color: var(--silver-300);
  transition: color var(--dur-hover) ease;
}

.page-contact .flow__step[open] .flow__num,
.page-contact .flow__step:hover .flow__num {
  color: var(--cyan-400);
}

.page-contact .flow__label {
  font-size: var(--fs-4);
  font-weight: 600;
  color: var(--silver-050);
}

.page-contact .flow__body {
  padding-bottom: clamp(20px, 2.6vw, 28px);
  padding-inline-start: clamp(46px, 7vw, 76px);
  max-width: 60ch;
  font-size: var(--fs-3);
  line-height: 1.75;
  color: var(--silver-300);
}

.page-contact .flow__body p {
  margin: 0;
}

/* ---------- 反馈材料清单 ---------- */
.page-contact .contact-report {
  background: var(--teal-zone);
  border-block: var(--rule) solid var(--hairline-700);
}

.page-contact .report-list {
  list-style: none;
  margin: clamp(24px, 3vw, 36px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
}

.page-contact .report-item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 16px;
  padding: clamp(18px, 2.2vw, 24px) 0;
  border-top: 1px solid var(--hairline-700);
}

.page-contact .report-check {
  appearance: none;
  -webkit-appearance: none;
  display: grid;
  place-content: center;
  width: 22px;
  height: 22px;
  margin: 2px 0 0;
  border: 2px solid var(--hairline-700);
  background: transparent;
  cursor: pointer;
  transition: border-color var(--dur-hover) ease;
}

.page-contact .report-check::after {
  content: "";
  width: 10px;
  height: 10px;
  background: var(--mint-400);
  transform: scale(0);
  transition: transform var(--dur-hover) ease;
}

.page-contact .report-check:checked::after {
  transform: scale(1);
}

.page-contact .report-check:hover {
  border-color: var(--cyan-400);
}

.page-contact .report-check:focus-visible {
  outline: 2px solid var(--cyan-400);
  outline-offset: 2px;
}

.page-contact .report-label {
  display: grid;
  gap: 6px;
  cursor: pointer;
}

.page-contact .report-label__title {
  font-size: var(--fs-3);
  font-weight: 600;
  color: var(--silver-050);
}

.page-contact .report-label__text {
  font-size: var(--fs-2);
  line-height: 1.75;
  color: var(--silver-300);
  max-width: 58ch;
}

/* ---------- 站内延伸 ---------- */
.page-contact .contact-next__title {
  margin: 0 0 clamp(18px, 3vw, 30px);
}

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

.page-contact .contact-next__item {
  display: grid;
  grid-template-columns: 1fr;
  gap: 6px;
  padding: clamp(16px, 2vw, 22px) 0;
  border-bottom: 1px solid var(--hairline-700);
}

.page-contact .contact-next__link {
  justify-self: start;
  font-size: var(--fs-3);
  font-weight: 600;
  color: var(--silver-050);
  text-decoration: none;
  border-bottom: 2px solid var(--hairline-700);
  padding-bottom: 2px;
  transition: color var(--dur-hover) ease, border-color var(--dur-hover) ease;
}

.page-contact .contact-next__link:hover,
.page-contact .contact-next__link:focus-visible {
  color: var(--cyan-400);
  border-bottom-color: var(--cyan-400);
}

.page-contact .contact-next__link:focus-visible {
  outline: 2px solid var(--cyan-400);
  outline-offset: 3px;
}

.page-contact .contact-next__desc {
  font-size: var(--fs-2);
  line-height: 1.75;
  color: var(--silver-300);
  max-width: 62ch;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-contact .channel--phone {
    margin-inline-start: clamp(24px, 5vw, 64px);
  }
}

@media (min-width: 760px) {
  .page-contact .report-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: clamp(28px, 4vw, 56px);
  }

  .page-contact .contact-next__item {
    grid-template-columns: minmax(0, 14rem) minmax(0, 1fr);
    align-items: baseline;
    gap: 24px;
  }
}

@media (min-width: 960px) {
  .page-contact .contact-body__grid {
    grid-template-columns: minmax(280px, 0.82fr) minmax(0, 1.18fr);
    gap: clamp(48px, 6vw, 88px);
  }
}

@media (min-width: 1060px) {
  .page-contact .contact-hero__note {
    display: block;
  }
}

@media (max-width: 420px) {
  .page-contact .contact-hero__title {
    font-size: clamp(1.95rem, 8vw, 2.4rem);
  }

  .page-contact .channel__value {
    font-size: 0.98rem;
  }

  .page-contact .flow__body {
    padding-inline-start: 0;
  }
}