.page-contact {
  --pc-line: rgba(79, 147, 170, .42);
}

/* ---------- 首屏 ---------- */
.page-contact__mast {
  position: relative;
  background: linear-gradient(180deg, var(--ink-deep) 0%, var(--ink) 58%, var(--ink) 100%);
  border-bottom: 1px solid var(--line);
}

.page-contact__banner {
  position: relative;
  margin: 0;
  height: clamp(148px, 26vh, 300px);
  overflow: hidden;
}

.page-contact__banner img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 42%;
  filter: saturate(.8) contrast(1.06);
}

.page-contact__banner::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(6, 23, 15, .3) 0%, rgba(11, 43, 36, .92) 100%);
  pointer-events: none;
}

.page-contact__mast-body {
  padding-top: clamp(24px, 3.8vw, 46px);
  padding-bottom: clamp(44px, 6vw, 84px);
}

.page-contact__crumb {
  margin-bottom: clamp(20px, 3vw, 32px);
}

.page-contact__crumb .breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: var(--t-meta);
  letter-spacing: .04em;
  color: var(--mist);
}

.page-contact__crumb .breadcrumb__list li {
  display: inline-flex;
  align-items: center;
}

.page-contact__crumb .breadcrumb__list li + li::before {
  content: "/";
  margin-right: 8px;
  color: var(--line);
}

.page-contact__crumb .breadcrumb__list a {
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .22s var(--ease), border-color .22s var(--ease);
}

.page-contact__crumb .breadcrumb__list a:hover,
.page-contact__crumb .breadcrumb__list a:focus-visible {
  color: var(--gold-bright);
  border-bottom-color: var(--gold);
}

.page-contact__title {
  margin: 14px 0 0;
  max-width: 18ch;
  color: var(--paper);
  letter-spacing: -.01em;
}

.page-contact__lead {
  margin-top: clamp(16px, 2vw, 24px);
  max-width: 46ch;
  color: rgba(245, 239, 226, .82);
}

/* ---------- 区块标题 ---------- */
.page-contact__head {
  margin-bottom: clamp(28px, 4vw, 48px);
}

.page-contact__head h2 {
  margin: 12px 0 0;
  color: var(--paper);
}

.page-contact__head-note {
  margin: 14px 0 0;
  max-width: 52ch;
  color: rgba(245, 239, 226, .76);
}

.page-contact__head--paper h2 {
  color: var(--ink);
}

.page-contact__head--paper .page-contact__head-note {
  color: rgba(11, 43, 36, .72);
}

/* ---------- 三条渠道 ---------- */
.page-contact .channel-list {
  margin: 0;
  display: grid;
  gap: clamp(24px, 3.4vw, 40px);
}

.page-contact .channel-list__row {
  border-left: 1px solid var(--gold);
  padding: 2px 0 clamp(6px, 1.4vw, 14px) clamp(16px, 2.6vw, 26px);
}

.page-contact .channel-list dt {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin: 0;
}

.page-contact .channel-list__idx {
  font-family: var(--font-serif);
  font-size: var(--t-meta);
  letter-spacing: .14em;
  color: var(--gold);
}

.page-contact .channel-list__name {
  font-family: var(--font-serif);
  font-size: clamp(19px, 2.1vw, 25px);
  font-weight: 600;
  letter-spacing: -.01em;
  color: var(--paper);
}

.page-contact .channel-list dd {
  margin: 10px 0 0;
}

.page-contact .channel-list__use {
  margin: 0;
  max-width: 50ch;
  color: rgba(245, 239, 226, .79);
}

.page-contact .channel-list__value {
  margin: 14px 0 0;
  font-family: var(--font-serif);
  font-size: clamp(18px, 2.3vw, 26px);
  font-weight: 600;
  letter-spacing: .01em;
  color: var(--gold-bright);
  word-break: break-word;
}

.page-contact .channel-list__value a {
  color: var(--gold-bright);
  text-decoration: none;
  border-bottom: 1px solid rgba(201, 162, 39, .5);
  transition: border-color .22s var(--ease);
}

.page-contact .channel-list__value a:hover,
.page-contact .channel-list__value a:focus-visible {
  border-bottom-color: var(--gold-bright);
}

.page-contact .channel-list__meta {
  margin: 8px 0 0;
  font-size: var(--t-small);
  color: var(--mist);
}

/* ---------- 工单三步 ---------- */
.page-contact .ticket-steps {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-contact .ticket-steps__item {
  position: relative;
  padding: 0 0 clamp(30px, 4.2vw, 50px) clamp(56px, 8vw, 76px);
}

.page-contact .ticket-steps__item:last-child {
  padding-bottom: 0;
}

.page-contact .ticket-steps__item:not(:last-child)::before {
  content: "";
  position: absolute;
  left: 17px;
  top: 42px;
  bottom: 6px;
  width: 1px;
  background: linear-gradient(180deg, var(--pc-line), rgba(79, 147, 170, .08));
}

.page-contact .ticket-steps__num {
  position: absolute;
  left: 0;
  top: 0;
  width: 35px;
  height: 35px;
  display: grid;
  place-items: center;
  border: 1px solid var(--gold);
  border-radius: 50%;
  background: var(--paper);
  font-family: var(--font-serif);
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--gold);
  transition: background-color .25s var(--ease), color .25s var(--ease);
}

.page-contact .ticket-steps__item:hover .ticket-steps__num,
.page-contact .ticket-steps__item:focus-within .ticket-steps__num {
  background: var(--gold);
  color: var(--ink-deep);
}

.page-contact .ticket-steps__item h3 {
  margin: 4px 0 0;
  color: var(--ink);
}

.page-contact .ticket-steps__text {
  margin: 10px 0 0;
  max-width: 52ch;
  color: rgba(11, 43, 36, .78);
}

.page-contact .ticket-steps__text a {
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px solid rgba(201, 162, 39, .7);
  transition: color .22s var(--ease), border-color .22s var(--ease);
}

.page-contact .ticket-steps__text a:hover,
.page-contact .ticket-steps__text a:focus-visible {
  color: var(--rose);
  border-bottom-color: var(--rose);
}

.page-contact .ticket-steps__mats {
  display: inline-block;
  margin: 12px 0 0;
  padding-bottom: 2px;
  font-size: var(--t-small);
  letter-spacing: .02em;
  color: rgba(11, 43, 36, .82);
  border-bottom: 1px dashed rgba(11, 43, 36, .32);
  transition: color .22s var(--ease), border-color .22s var(--ease);
}

.page-contact .ticket-steps__item:hover .ticket-steps__mats,
.page-contact .ticket-steps__item:focus-within .ticket-steps__mats {
  color: var(--rose);
  border-bottom-color: var(--rose);
}

/* ---------- 回复节奏 ---------- */
.page-contact .response-band {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-contact .response-band__cell {
  background: var(--ink-deep);
  padding: clamp(20px, 3vw, 30px) clamp(16px, 2.4vw, 26px);
}

.page-contact .response-band__num {
  margin: 0;
  font-family: var(--font-serif);
  font-size: clamp(30px, 4.2vw, 44px);
  line-height: 1;
  letter-spacing: -.02em;
  color: var(--gold-bright);
  font-variant-numeric: tabular-nums;
}

.page-contact .response-band__num span {
  margin-left: 6px;
  font-size: .4em;
  letter-spacing: .1em;
  color: var(--mist);
}

.page-contact .response-band__label {
  margin: 12px 0 0;
  font-size: var(--t-small);
  line-height: 1.7;
  color: rgba(245, 239, 226, .72);
}

.page-contact .response-notes {
  margin-top: clamp(26px, 3.4vw, 42px);
  display: grid;
  gap: 18px;
}

.page-contact .response-notes__item {
  border-top: 1px solid var(--line);
  padding-top: 16px;
}

.page-contact .response-notes__item h3 {
  margin: 0 0 8px;
  font-size: var(--t-h3);
  color: var(--paper);
}

.page-contact .response-notes__item p {
  margin: 0;
  max-width: 54ch;
  color: rgba(245, 239, 226, .75);
}

.page-contact .response-notes__item a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(79, 147, 170, .55);
  transition: color .22s var(--ease), border-color .22s var(--ease);
}

.page-contact .response-notes__item a:hover,
.page-contact .response-notes__item a:focus-visible {
  color: var(--gold-bright);
  border-bottom-color: var(--gold-bright);
}

/* ---------- 来信寄送 ---------- */
.page-contact .mail-block {
  display: grid;
  gap: clamp(24px, 3.4vw, 40px);
}

.page-contact .mail-block__body p {
  margin: 0;
  max-width: 50ch;
  color: rgba(11, 43, 36, .8);
}

.page-contact .mail-address {
  margin: clamp(20px, 2.6vw, 30px) 0 0;
  border-left: 1px solid var(--gold);
  padding-left: clamp(16px, 2.4vw, 24px);
}

.page-contact .mail-address dt {
  font-size: var(--t-meta);
  letter-spacing: .12em;
  color: rgba(11, 43, 36, .55);
}

.page-contact .mail-address dd {
  margin: 5px 0 16px;
  font-family: var(--font-serif);
  font-size: clamp(17px, 1.9vw, 21px);
  line-height: 1.65;
  color: var(--ink);
  word-break: break-word;
}

.page-contact .mail-address dd:last-child {
  margin-bottom: 0;
}

.page-contact .mail-block__media {
  margin: 0;
  padding: 8px;
  border: 1px solid var(--line);
  background: var(--paper-2);
}

.page-contact .mail-block__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

/* ---------- 主体信息 ---------- */
.page-contact .legal-list {
  margin: clamp(18px, 2.4vw, 28px) 0 0;
  border-top: 1px solid var(--line);
}

.page-contact .legal-list__row {
  display: grid;
  gap: 4px 20px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
}

.page-contact .legal-list dt {
  font-size: var(--t-meta);
  letter-spacing: .1em;
  color: var(--mist);
}

.page-contact .legal-list dd {
  margin: 0;
  font-family: var(--font-serif);
  font-size: clamp(16px, 1.8vw, 19px);
  color: var(--paper);
  word-break: break-word;
}

.page-contact__legal-note {
  margin: clamp(20px, 2.6vw, 30px) 0 0;
  max-width: 56ch;
  font-size: var(--t-small);
  line-height: 1.85;
  color: var(--mist);
}

.page-contact__legal-note a {
  color: var(--gold-bright);
  text-decoration: none;
  border-bottom: 1px solid rgba(201, 162, 39, .45);
  transition: border-color .22s var(--ease);
}

.page-contact__legal-note a:hover,
.page-contact__legal-note a:focus-visible {
  border-bottom-color: var(--gold-bright);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-contact .response-band {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .legal-list__row {
    grid-template-columns: 168px minmax(0, 1fr);
    align-items: baseline;
  }
}

@media (min-width: 840px) {
  .page-contact .mail-block {
    grid-template-columns: minmax(0, 1fr) minmax(0, .92fr);
    align-items: start;
  }

  .page-contact .channel-list__row {
    padding-bottom: clamp(10px, 1.6vw, 18px);
  }
}

@media (max-width: 480px) {
  .page-contact .ticket-steps__item {
    padding-left: 52px;
  }

  .page-contact .ticket-steps__item:not(:last-child)::before {
    left: 14px;
    top: 38px;
  }

  .page-contact .ticket-steps__num {
    width: 30px;
    height: 30px;
    font-size: 12px;
  }
}
<<<END>>>