.page-contact {
  background: var(--paper);
  color: var(--ink);
}

.page-contact .container {
  padding-inline: var(--gutter);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  padding-block: clamp(18px, 3vw, 32px) clamp(46px, 7vw, 96px);
}

.page-contact .contact-hero__grid {
  display: grid;
  gap: clamp(28px, 4vw, 56px);
  margin-top: clamp(22px, 3.4vw, 46px);
}

.page-contact .contact-hero__title {
  margin: 0 0 clamp(16px, 2vw, 26px);
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: clamp(40px, 9vw, 92px);
  line-height: .95;
  letter-spacing: -.03em;
}

.page-contact .contact-hero__mark {
  display: inline-block;
  padding-bottom: .06em;
  border-bottom: clamp(6px, 1vw, 12px) solid var(--orange);
}

.page-contact .contact-hero__lede {
  max-width: 46ch;
  margin: 0;
  font-size: clamp(15px, 1.5vw, 17px);
}

.page-contact .contact-hero__mail {
  margin-top: clamp(26px, 4vw, 46px);
  padding-top: clamp(18px, 2.6vw, 30px);
  border-top: 2px solid var(--ink);
}

.page-contact .contact-hero__mail-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .14em;
  color: var(--slate);
}

.page-contact .contact-hero__mail-address {
  margin: 12px 0 0;
  font-family: var(--font-sans);
  font-weight: 800;
  font-size: clamp(20px, 4.4vw, 42px);
  line-height: 1.14;
  letter-spacing: -.025em;
  overflow-wrap: anywhere;
}

.page-contact .contact-hero__mail-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 16px;
  margin-top: clamp(14px, 2vw, 20px);
}

/* ---------- 右侧渠道卡 ---------- */
.page-contact .contact-hero__side {
  background: var(--paper-warm);
  padding: clamp(6px, 1.2vw, 12px) clamp(20px, 3.2vw, 34px);
  border-radius: 3px 44px 3px 3px;
}

.page-contact .channel-card {
  padding: clamp(18px, 2.8vw, 26px) 0;
  border-top: var(--line);
}

.page-contact .channel-card:first-child {
  border-top: 0;
}

.page-contact .channel-card__label {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .14em;
  color: var(--slate);
}

.page-contact .channel-card__value {
  margin: 0 0 8px;
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: clamp(17px, 2.4vw, 22px);
  line-height: 1.3;
}

.page-contact .channel-card__value--mono {
  font-family: var(--font-mono);
  letter-spacing: .01em;
}

.page-contact .channel-card__text {
  margin: 0;
  font-family: var(--font-serif);
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--ink-2);
}

.page-contact .channel-card__hint {
  margin: 8px 0 0;
  font-family: var(--font-serif);
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--slate);
}

.page-contact .channel-card__copy {
  margin-top: 14px;
}

/* ---------- 复制按钮统一样式 ---------- */
.page-contact :is(.contact-hero__copy, .channel-card__copy, .contact-post__copy) {
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 700;
  line-height: 1;
  padding: 9px 18px;
  border-radius: 999px;
  border: 1.5px solid var(--orange);
  background: transparent;
  color: var(--orange);
  cursor: pointer;
  transition: background .2s ease, color .2s ease, border-color .2s ease;
}

.page-contact :is(.contact-hero__copy, .channel-card__copy, .contact-post__copy):hover {
  background: var(--orange);
  color: var(--ink);
}

.page-contact :is(.contact-hero__copy, .channel-card__copy, .contact-post__copy):focus-visible {
  outline: 2px solid var(--orange);
  outline-offset: 3px;
}

.page-contact :is(.contact-hero__copy, .channel-card__copy, .contact-post__copy)[data-copied="true"] {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--paper);
}

/* ---------- 反馈清单 ---------- */
.page-contact .contact-prep {
  padding-block: clamp(44px, 6vw, 88px);
  background: var(--paper-warm);
  border-top: var(--line);
  border-bottom: var(--line);
}

.page-contact .contact-prep__grid {
  display: grid;
  gap: clamp(26px, 4vw, 56px);
}

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

.page-contact .contact-prep__media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: 2px 32px 2px 2px;
  object-fit: cover;
}

.page-contact .contact-prep__title {
  margin: 10px 0 12px;
  font-family: var(--font-sans);
  font-weight: 800;
  font-size: clamp(24px, 4vw, 40px);
  line-height: 1.12;
  letter-spacing: -.02em;
}

.page-contact .contact-prep__lede {
  margin: 0;
  max-width: 48ch;
  font-family: var(--font-serif);
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink-2);
}

.page-contact .checklist {
  list-style: none;
  margin: clamp(20px, 3vw, 30px) 0 0;
  padding: 0;
  border-top: 2px solid var(--ink);
}

.page-contact .checklist__item {
  border-bottom: var(--line);
}

.page-contact .checklist__label {
  display: grid;
  grid-template-columns: 24px minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  padding: 15px 0;
  cursor: pointer;
}

.page-contact .checklist__box {
  appearance: none;
  -webkit-appearance: none;
  width: 22px;
  height: 22px;
  margin: 3px 0 0;
  border: 2px solid var(--ink);
  border-radius: 2px;
  background: var(--paper);
  position: relative;
  cursor: pointer;
}

.page-contact .checklist__box:checked {
  background: var(--orange);
  border-color: var(--orange);
}

.page-contact .checklist__box:checked::after {
  content: "";
  position: absolute;
  left: 6px;
  top: 1px;
  width: 6px;
  height: 11px;
  border-right: 2px solid var(--ink);
  border-bottom: 2px solid var(--ink);
  transform: rotate(42deg);
}

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

.page-contact .checklist__text {
  font-family: var(--font-serif);
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink-2);
}

.page-contact .checklist__text strong {
  margin-right: 6px;
  font-family: var(--font-sans);
  font-weight: 700;
  color: var(--ink);
}

.page-contact .contact-prep__foot {
  margin: clamp(18px, 2.4vw, 24px) 0 0;
  font-family: var(--font-serif);
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--slate);
}

.page-contact .contact-prep__foot a {
  color: var(--ink);
  text-decoration: underline;
  text-decoration-color: var(--orange);
  text-decoration-thickness: 2px;
  text-underline-offset: 3px;
}

/* ---------- 场景折叠 ---------- */
.page-contact .contact-scenarios {
  padding-block: clamp(44px, 6vw, 88px);
}

.page-contact .contact-scenarios__head {
  margin-bottom: clamp(22px, 3.4vw, 40px);
}

.page-contact .contact-scenarios__title {
  margin: 10px 0 0;
  font-family: var(--font-sans);
  font-weight: 800;
  font-size: clamp(25px, 4.2vw, 44px);
  line-height: 1.12;
  letter-spacing: -.02em;
}

.page-contact .scenario {
  border-top: var(--line);
}

.page-contact .scenario:last-of-type {
  border-bottom: var(--line);
}

.page-contact .scenario__summary {
  display: flex;
  align-items: baseline;
  gap: clamp(12px, 2vw, 22px);
  padding: clamp(16px, 2.4vw, 22px) 0;
  cursor: pointer;
  list-style: none;
}

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

.page-contact .scenario__summary::marker {
  content: "";
}

.page-contact .scenario__num {
  flex: none;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .04em;
  color: var(--orange);
}

.page-contact .scenario__name {
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: clamp(16px, 2.1vw, 21px);
  line-height: 1.4;
}

.page-contact .scenario__sign {
  margin-left: auto;
  flex: none;
  font-family: var(--font-mono);
  font-size: 20px;
  line-height: 1;
  color: var(--slate);
  transition: transform .22s ease, color .22s ease;
}

.page-contact .scenario[open] .scenario__sign {
  transform: rotate(45deg);
  color: var(--orange);
}

.page-contact .scenario__body {
  padding: 0 0 clamp(20px, 3vw, 28px) clamp(28px, 5vw, 50px);
  max-width: 62ch;
}

.page-contact .scenario__body p {
  margin: 0 0 12px;
  font-family: var(--font-serif);
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink-2);
}

.page-contact .scenario__body a {
  color: var(--ink);
  text-decoration: underline;
  text-decoration-color: var(--orange);
  text-decoration-thickness: 2px;
  text-underline-offset: 3px;
}

.page-contact .scenario__route {
  display: inline-block;
  padding: 5px 13px;
  border-radius: 999px;
  background: var(--orange-soft);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 12.5px;
  font-weight: 700;
  line-height: 1.3;
}

/* ---------- 寄送 ---------- */
.page-contact .contact-post {
  padding-block: clamp(44px, 6vw, 88px);
  background: var(--ink);
  color: var(--paper);
}

.page-contact .contact-post__inner {
  display: grid;
  gap: clamp(26px, 4vw, 56px);
  align-items: center;
}

.page-contact .contact-post .eyebrow {
  color: var(--orange);
}

.page-contact .contact-post__title {
  margin: 10px 0 16px;
  font-family: var(--font-sans);
  font-weight: 800;
  font-size: clamp(25px, 4.2vw, 46px);
  line-height: 1.1;
  letter-spacing: -.02em;
  color: var(--paper);
}

.page-contact .contact-post__text p {
  margin: 0 0 18px;
  max-width: 52ch;
  font-family: var(--font-serif);
  font-size: 15px;
  line-height: 1.85;
  color: rgba(247, 243, 234, .82);
}

.page-contact .contact-post__address {
  margin: 0 0 18px;
  padding-left: 16px;
  border-left: 3px solid var(--orange);
  font-family: var(--font-sans);
  font-style: normal;
  font-weight: 700;
  font-size: clamp(16px, 2.4vw, 23px);
  line-height: 1.5;
  color: var(--paper);
}

.page-contact .contact-post__copy {
  border-color: var(--orange);
  color: var(--orange);
  background: transparent;
}

.page-contact .contact-post__copy:hover {
  background: var(--orange);
  color: var(--ink);
}

.page-contact .contact-post__copy[data-copied="true"] {
  background: var(--paper);
  border-color: var(--paper);
  color: var(--ink);
}

.page-contact .contact-post__text .contact-post__note {
  margin: 16px 0 0;
  font-family: var(--font-serif);
  font-size: 12.5px;
  line-height: 1.75;
  color: rgba(247, 243, 234, .58);
}

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

.page-contact .contact-post__media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: 2px 28px 2px 2px;
  object-fit: cover;
}

/* ---------- 相关说明 ---------- */
.page-contact .contact-also {
  display: grid;
  gap: 0;
  padding-block: clamp(34px, 4.4vw, 56px) clamp(48px, 6vw, 88px);
}

.page-contact .contact-also__item {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 4px 16px;
  padding: clamp(15px, 2.4vw, 22px) 0;
  border-top: var(--line);
  text-decoration: none;
  color: inherit;
}

.page-contact .contact-also__item:last-child {
  border-bottom: var(--line);
}

.page-contact .contact-also__label {
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: clamp(16px, 2vw, 19px);
  color: var(--ink);
}

.page-contact .contact-also__desc {
  grid-column: 1 / 2;
  font-family: var(--font-serif);
  font-size: 14px;
  line-height: 1.7;
  color: var(--slate);
}

.page-contact .contact-also__arrow {
  grid-row: 1 / span 2;
  grid-column: 2 / 3;
  font-size: 20px;
  line-height: 1;
  color: var(--orange);
  transition: transform .2s ease;
}

.page-contact .contact-also__item:hover .contact-also__arrow {
  transform: translateX(5px);
}

/* ---------- 断点 ---------- */
@media (min-width: 760px) {
  .page-contact .contact-prep__grid {
    grid-template-columns: minmax(0, .92fr) minmax(0, 1.08fr);
    align-items: start;
  }

  .page-contact .contact-post__inner {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
  }
}

@media (min-width: 960px) {
  .page-contact .contact-hero__grid {
    grid-template-columns: minmax(0, 1.2fr) minmax(300px, .8fr);
    align-items: start;
    gap: clamp(40px, 5vw, 72px);
  }

  .page-contact .contact-prep__grid {
    gap: clamp(36px, 4.6vw, 64px);
  }

  .page-contact .contact-also {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: clamp(28px, 4vw, 56px);
  }

  .page-contact .contact-also__item:nth-child(2) {
    border-bottom: var(--line);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .scenario__sign,
  .page-contact .contact-also__arrow,
  .page-contact :is(.contact-hero__copy, .channel-card__copy, .contact-post__copy) {
    transition: none;
  }
}
<<<END>>>