.page-contact {
  --contact-bevel: 16px;
  --contact-card-gap: clamp(18px, 2.4vw, 28px);
}

.page-contact .contact-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(30px, 5vw, 58px) 0 clamp(48px, 7vw, 88px);
  background: linear-gradient(158deg, var(--deep-sea) 0%, var(--navy) 58%, var(--teal-deep) 100%);
  color: var(--paper);
}

.page-contact .contact-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--gold) 0%, var(--neon) 48%, transparent 100%);
  pointer-events: none;
}

.page-contact .contact-hero__frame {
  position: absolute;
  inset: 0;
  overflow: hidden;
}

.page-contact .contact-hero__frame::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(6, 26, 46, .6) 0%, rgba(6, 26, 46, .86) 62%, var(--deep-sea) 100%),
    linear-gradient(108deg, rgba(58, 43, 107, .5) 0%, transparent 58%);
}

.page-contact .contact-hero__img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .3;
  transform: scale(1.04);
  clip-path: polygon(0 0, 100% 0, 100% 86%, 0 100%);
}

.page-contact .contact-hero__inner {
  position: relative;
  z-index: 1;
}

.page-contact .eyebrow {
  color: var(--teal-mid);
}

.page-contact .contact-hero .eyebrow {
  color: var(--gold-light);
}

.page-contact .contact-hero h1 {
  margin: 14px 0 0;
  max-width: 17em;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2rem, 5.6vw, 4rem);
  line-height: 1.1;
  letter-spacing: -.02em;
  color: var(--paper);
}

.page-contact .contact-hero__lede {
  margin: 20px 0 0;
  max-width: 38em;
  font-family: var(--font-body);
  font-size: 1.05rem;
  line-height: 1.82;
  color: var(--paper-80);
}

.page-contact .contact-hero__jump {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 12px;
  margin: 30px 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .contact-hero__jump a {
  display: inline-block;
  padding: 8px 15px;
  font-family: var(--font-mono);
  font-size: .82rem;
  letter-spacing: .04em;
  color: var(--gold-light);
  text-decoration: none;
  border: 1px solid var(--line-dark);
  clip-path: polygon(8px 0, 100% 0, 100% calc(100% - 8px), calc(100% - 8px) 100%, 0 100%, 0 8px);
  transition: background .2s ease, color .2s ease;
}

.page-contact .contact-hero__jump a:hover,
.page-contact .contact-hero__jump a:focus-visible {
  background: rgba(200, 162, 39, .18);
  color: var(--paper);
}

/* ---- 联系方式 ---- */

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

.page-contact .contact-reach h2,
.page-contact .contact-followup h2,
.page-contact .contact-record h2,
.page-contact .contact-elsewhere h2 {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.5rem, 3.2vw, 2.1rem);
  line-height: 1.24;
  letter-spacing: -.01em;
}

.page-contact .contact-reach__intro,
.page-contact .contact-prep__intro,
.page-contact .contact-record__intro {
  margin: 14px 0 0;
  max-width: 34em;
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.8;
  color: var(--ink-70);
}

.page-contact .contact-prep__intro,
.page-contact .contact-record__intro {
  font-size: .97rem;
}

.page-contact .contact-reach__col .channel-card:first-of-type {
  margin-top: 28px;
}

.page-contact .channel-card {
  position: relative;
  margin-top: 20px;
  padding: clamp(20px, 2.4vw, 28px);
  background: linear-gradient(156deg, var(--deep-sea) 0%, var(--navy) 100%);
  color: var(--paper);
  clip-path: polygon(
    var(--contact-bevel) 0,
    100% 0,
    100% calc(100% - var(--contact-bevel)),
    calc(100% - var(--contact-bevel)) 100%,
    0 100%,
    0 var(--contact-bevel)
  );
}

.page-contact .channel-card--mail {
  box-shadow: inset 0 3px 0 0 var(--gold);
}

.page-contact .channel-card--phone {
  box-shadow: inset 0 3px 0 0 var(--neon);
  background: linear-gradient(156deg, var(--navy) 0%, var(--teal-deep) 100%);
}

.page-contact .channel-card__label {
  margin: 0;
  font-size: .76rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--gold-light);
}

.page-contact .channel-card--phone .channel-card__label {
  color: var(--neon);
}

.page-contact .channel-card__value {
  margin: 14px 0 0;
  font-family: var(--font-mono);
  font-size: clamp(1rem, 2.4vw, 1.32rem);
  line-height: 1.4;
  letter-spacing: .01em;
  color: var(--paper);
  word-break: break-all;
}

.page-contact .channel-card__value--phone {
  font-size: clamp(1.5rem, 5.4vw, 2.2rem);
  letter-spacing: .06em;
  word-break: keep-all;
}

.page-contact .channel-card__desc {
  margin: 14px 0 0;
  font-family: var(--font-body);
  font-size: .97rem;
  line-height: 1.78;
  color: var(--paper-80);
}

.page-contact .channel-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .channel-card__note {
  margin: 18px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--line-dark);
  font-family: var(--font-body);
  font-size: .84rem;
  line-height: 1.72;
  color: var(--paper-55);
}

/* ---- 来信准备 ---- */

.page-contact .contact-prep {
  display: grid;
  gap: var(--contact-card-gap);
}

.page-contact .contact-prep__figure {
  margin: 0;
  max-width: 380px;
  overflow: hidden;
  background: var(--teal-deep);
  clip-path: polygon(0 0, 100% 0, 100% 86%, 0 100%);
}

.page-contact .contact-prep__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  opacity: .94;
}

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

.page-contact .checklist__item {
  position: relative;
}

.page-contact .checklist__box {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

.page-contact .checklist__label {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 16px 18px;
  background: rgba(14, 46, 74, .06);
  border-left: 3px solid var(--teal-mid);
  cursor: pointer;
  transition: background .2s ease, border-color .2s ease;
}

.page-contact .checklist__mark {
  position: relative;
  flex: 0 0 auto;
  width: 20px;
  height: 20px;
  margin-top: 2px;
  border: var(--stroke) solid var(--teal-mid);
  background: transparent;
  transition: background .2s ease, border-color .2s ease;
}

.page-contact .checklist__mark::after {
  content: "";
  position: absolute;
  left: 6px;
  top: 1px;
  width: 5px;
  height: 11px;
  border: solid var(--deep-sea);
  border-width: 0 2px 2px 0;
  transform: rotate(45deg) scale(0);
  transform-origin: center;
  transition: transform .18s ease;
}

.page-contact .checklist__box:checked + .checklist__label {
  background: rgba(41, 224, 196, .1);
  border-left-color: var(--neon);
}

.page-contact .checklist__box:checked + .checklist__label .checklist__mark {
  background: var(--neon);
  border-color: var(--neon);
}

.page-contact .checklist__box:checked + .checklist__label .checklist__mark::after {
  transform: rotate(45deg) scale(1);
}

.page-contact .checklist__box:checked + .checklist__label .checklist__text {
  color: var(--ink-55);
}

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

.page-contact .checklist__num {
  flex: 0 0 auto;
  padding-top: 3px;
  font-size: .76rem;
  letter-spacing: .1em;
  color: var(--teal-mid);
}

.page-contact .checklist__body {
  display: grid;
  gap: 4px;
  min-width: 0;
}

.page-contact .checklist__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.05rem;
  line-height: 1.4;
  color: var(--ink);
}

.page-contact .checklist__text {
  font-family: var(--font-body);
  font-size: .94rem;
  line-height: 1.72;
  color: var(--ink-70);
  transition: color .2s ease;
}

/* ---- 后续跟进 ---- */

.page-contact .contact-followup {
  background: var(--teal-deep);
  color: var(--paper);
}

.page-contact .contact-followup .eyebrow {
  color: var(--gold-light);
}

.page-contact .contact-followup h2 {
  color: var(--paper);
  max-width: 26em;
}

.page-contact .contact-followup__steps {
  display: grid;
  gap: 16px;
  margin-top: 28px;
}

.page-contact .step {
  padding: 20px 18px 22px;
  border-top: 2px solid var(--gold);
  background: rgba(245, 241, 232, .05);
}

.page-contact .step:last-child {
  border-top-color: var(--neon);
}

.page-contact .step__num {
  margin: 0;
  font-size: .74rem;
  letter-spacing: .18em;
  color: var(--gold-light);
}

.page-contact .step__title {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.1rem;
  line-height: 1.4;
  color: var(--paper);
}

.page-contact .step__text {
  margin: 8px 0 0;
  font-family: var(--font-body);
  font-size: .94rem;
  line-height: 1.75;
  color: var(--paper-70);
}

/* ---- 站点信息 ---- */

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

.page-contact .contact-record__split {
  display: grid;
  gap: clamp(24px, 3.4vw, 44px);
}

.page-contact .record-list {
  margin: 0;
  border-top: 1px solid var(--line-light);
}

.page-contact .record-list__row {
  display: grid;
  gap: 6px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line-light);
}

.page-contact .record-list dt {
  margin: 0;
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--teal-mid);
}

.page-contact .record-list dd {
  margin: 0;
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.7;
  color: var(--ink);
  word-break: break-word;
}

/* ---- 其他入口 ---- */

.page-contact .contact-elsewhere {
  position: relative;
  background: linear-gradient(180deg, var(--deep-sea) 0%, var(--teal-deep) 100%);
  color: var(--paper);
}

.page-contact .contact-elsewhere::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--gold) 26%, var(--gold-light) 50%, var(--gold) 74%, transparent);
  pointer-events: none;
}

.page-contact .contact-elsewhere .eyebrow {
  color: var(--gold-light);
  padding-top: 22px;
}

.page-contact .contact-elsewhere h2 {
  color: var(--paper);
  max-width: 26em;
}

.page-contact .elsewhere-grid {
  margin-top: 28px;
}

.page-contact .elsewhere-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 22px 20px 24px;
  background: rgba(245, 241, 232, .05);
  border: 1px solid rgba(235, 208, 126, .2);
  color: var(--paper);
  text-decoration: none;
  clip-path: polygon(12px 0, 100% 0, 100% calc(100% - 12px), calc(100% - 12px) 100%, 0 100%, 0 12px);
  transition: background .2s ease, transform .2s ease;
}

.page-contact .elsewhere-card:hover,
.page-contact .elsewhere-card:focus-visible {
  background: rgba(245, 241, 232, .11);
  transform: translateY(-3px);
}

.page-contact .elsewhere-card__num {
  margin: 0;
  font-size: .74rem;
  letter-spacing: .18em;
  color: var(--gold-light);
}

.page-contact .elsewhere-card__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.12rem;
  line-height: 1.4;
  color: var(--paper);
}

.page-contact .elsewhere-card__text {
  flex: 1;
  margin: 0;
  font-family: var(--font-body);
  font-size: .93rem;
  line-height: 1.72;
  color: var(--paper-70);
}

.page-contact .elsewhere-card__go {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 4px;
  font-size: .86rem;
  color: var(--neon);
}

.page-contact .elsewhere-card__go::after {
  content: "→";
  transition: transform .2s ease;
}

.page-contact .elsewhere-card:hover .elsewhere-card__go::after,
.page-contact .elsewhere-card:focus-visible .elsewhere-card__go::after {
  transform: translateX(4px);
}

@media (min-width: 640px) {
  .page-contact .record-list__row {
    grid-template-columns: 158px 1fr;
    align-items: baseline;
    gap: 22px;
  }
}

@media (min-width: 768px) {
  .page-contact .contact-followup__steps {
    grid-template-columns: repeat(3, 1fr);
    gap: 22px;
  }

  .page-contact .contact-record__split {
    grid-template-columns: 4fr 6fr;
    align-items: start;
  }
}

@media (max-width: 767px) {
  .page-contact .contact-hero {
    padding-top: 24px;
  }

  .page-contact .contact-prep__figure {
    max-width: 100%;
  }

  .page-contact .channel-card__value--phone {
    letter-spacing: .03em;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .elsewhere-card,
  .page-contact .elsewhere-card__go::after,
  .page-contact .checklist__mark,
  .page-contact .checklist__mark::after {
    transition: opacity .2s ease;
  }

  .page-contact .elsewhere-card:hover,
  .page-contact .elsewhere-card:focus-visible {
    transform: none;
  }
}