.page-contact {
  --pc-border: 1px solid var(--lj-line);
  --pc-shadow: 6px 6px 0 rgba(0, 229, 160, .07);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  overflow: hidden;
  background: var(--lj-ink);
  padding-block: clamp(104px, 18vh, 200px) clamp(52px, 8vh, 92px);
}

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

.page-contact .contact-hero__frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 72% 50%;
  opacity: .4;
  filter: saturate(.58) brightness(.7);
}

.page-contact .contact-hero__frame::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(100deg, rgba(7, 19, 16, .97) 0%, rgba(7, 19, 16, .9) 36%, rgba(7, 19, 16, .3) 100%),
    repeating-linear-gradient(90deg, rgba(42, 58, 51, .3) 0 1px, transparent 1px 120px);
}

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

.page-contact .lj-breadcrumb {
  margin-bottom: clamp(24px, 4vh, 44px);
}

.page-contact .contact-hero__title {
  margin: 14px 0 0;
  font-family: var(--lj-font-display);
  font-weight: 800;
  font-stretch: condensed;
  font-size: clamp(38px, 8.2vw, 86px);
  line-height: .98;
  letter-spacing: -.012em;
  color: var(--lj-text);
  max-width: 15ch;
  text-wrap: balance;
}

.page-contact .contact-hero__lead {
  margin: clamp(18px, 3vh, 28px) 0 0;
  max-width: 48ch;
  font-family: var(--lj-font-body);
  font-size: 16px;
  line-height: 1.78;
  color: var(--lj-muted);
}

.page-contact .contact-hero__channels {
  margin-top: clamp(30px, 5vh, 54px);
  display: grid;
  gap: 14px;
}

.page-contact .contact-channel {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 18px 20px 16px;
  background: rgba(14, 33, 27, .88);
  border: var(--pc-border);
  border-left: 3px solid var(--lj-accent);
}

.page-contact .contact-channel__label {
  font-family: var(--lj-font-num);
  font-size: 12px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--lj-muted);
}

.page-contact .contact-channel__value {
  font-family: var(--lj-font-num);
  font-size: clamp(17px, 3.4vw, 26px);
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -.01em;
  color: var(--lj-text);
  overflow-wrap: anywhere;
}

.page-contact .contact-channel__copy {
  align-self: flex-start;
  margin-top: 6px;
  padding: 6px 14px;
  font-family: var(--lj-font-num);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--lj-muted);
  background: transparent;
  border: 1px solid var(--lj-line);
  border-radius: 0;
  cursor: pointer;
  transition: color .2s var(--lj-ease), border-color .2s var(--lj-ease), background-color .2s var(--lj-ease);
}

.page-contact .contact-channel__copy:hover,
.page-contact .contact-channel__copy:focus-visible {
  color: var(--lj-ink);
  background: var(--lj-accent);
  border-color: var(--lj-accent);
}

/* ---------- 渠道选择 ---------- */
.page-contact .contact-split {
  display: grid;
  gap: clamp(28px, 5vw, 48px);
}

.page-contact .contact-split__text p {
  margin-top: 16px;
  max-width: 52ch;
  font-size: 16px;
  line-height: 1.78;
  color: var(--lj-muted);
}

.page-contact .contact-split__text .lj-h2 {
  margin-top: 10px;
}

.page-contact .contact-split__text .lj-meta {
  margin-top: 22px;
  padding-top: 16px;
  border-top: 1px dashed var(--lj-line);
  max-width: 56ch;
  line-height: 1.9;
}

.page-contact .contact-link {
  color: var(--lj-accent);
  text-decoration: none;
  border-bottom: 1px solid rgba(0, 229, 160, .45);
  transition: border-color .2s var(--lj-ease);
}

.page-contact .contact-link:hover,
.page-contact .contact-link:focus-visible {
  border-bottom-color: var(--lj-accent);
}

.page-contact .contact-figure {
  margin: 0;
  position: relative;
  border: var(--pc-border);
  background: var(--lj-panel);
  box-shadow: var(--pc-shadow);
}

.page-contact .contact-figure__img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(.62) contrast(1.04);
}

.page-contact .contact-figure__caption {
  padding: 14px 18px 16px;
  font-family: var(--lj-font-body);
  font-size: 13px;
  line-height: 1.7;
  color: var(--lj-muted);
  border-top: var(--pc-border);
}

/* ---------- 四类事项 ---------- */
.page-contact .contact-topics {
  margin-top: clamp(24px, 4vh, 40px);
  display: grid;
  gap: 12px;
}

.page-contact .contact-topic {
  display: grid;
  gap: 12px;
  padding: 20px 18px;
  background: var(--lj-panel);
  border: var(--pc-border);
  outline: none;
  transition: background-color .28s var(--lj-ease), border-color .28s var(--lj-ease), transform .28s var(--lj-ease);
}

.page-contact .contact-topic:hover,
.page-contact .contact-topic:focus-visible {
  background: var(--lj-print);
  border-color: rgba(0, 229, 160, .4);
  transform: translateY(-2px);
}

.page-contact .contact-topic__num {
  font-family: var(--lj-font-num);
  font-size: clamp(22px, 4vw, 30px);
  font-weight: 700;
  line-height: 1;
  color: var(--lj-line);
  transition: color .28s var(--lj-ease);
}

.page-contact .contact-topic:hover .contact-topic__num,
.page-contact .contact-topic:focus-visible .contact-topic__num {
  color: var(--lj-accent);
}

.page-contact .contact-topic__title {
  margin: 0;
  color: var(--lj-text);
}

.page-contact .contact-topic__desc {
  margin-top: 8px;
  font-size: 15px;
  line-height: 1.72;
  color: var(--lj-muted);
}

.page-contact .contact-topic__materials {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px 12px;
}

.page-contact .contact-topic__need {
  flex: 1 1 260px;
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--lj-soft);
}

/* ---------- 发信前小清单 ---------- */
.page-contact .contact-checklist {
  display: grid;
  gap: clamp(24px, 4vw, 44px);
}

.page-contact .contact-checklist__intro .lj-h2 {
  margin-top: 10px;
}

.page-contact .contact-checklist__intro .lj-lead {
  margin-top: 18px;
  max-width: 42ch;
  color: var(--lj-muted);
  line-height: 1.78;
}

.page-contact .contact-checklist__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 2px;
  counter-reset: none;
}

.page-contact .contact-check {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  padding: 18px 16px;
  background: rgba(14, 33, 27, .55);
  border-left: 2px solid var(--lj-line);
  transition: border-color .25s var(--lj-ease), background-color .25s var(--lj-ease);
}

.page-contact .contact-check:hover {
  border-left-color: var(--lj-accent);
  background: var(--lj-panel);
}

.page-contact .contact-check__mark {
  font-family: var(--lj-font-num);
  font-size: 15px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--lj-accent);
}

.page-contact .contact-check__body h3 {
  margin: 0;
  font-size: 17px;
  color: var(--lj-text);
}

.page-contact .contact-check__body p {
  margin-top: 6px;
  font-size: 14px;
  line-height: 1.72;
  color: var(--lj-muted);
}

/* ---------- 回复节奏 ---------- */
.page-contact .contact-rhythm {
  margin: clamp(24px, 4vh, 40px) 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 24px;
}

.page-contact .contact-rhythm__step {
  position: relative;
  padding-top: 22px;
  border-top: 1px solid var(--lj-line);
}

.page-contact .contact-rhythm__step::before {
  content: "";
  position: absolute;
  top: -3px;
  left: 0;
  width: 34px;
  height: 5px;
  background: var(--lj-accent);
}

.page-contact .contact-rhythm__num {
  display: block;
  font-family: var(--lj-font-num);
  font-size: 30px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: -.02em;
  color: var(--lj-accent);
}

.page-contact .contact-rhythm__step h3 {
  margin: 14px 0 0;
  font-size: 18px;
  color: var(--lj-text);
}

.page-contact .contact-rhythm__step p {
  margin-top: 8px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--lj-muted);
}

.page-contact .contact-rhythm__foot {
  margin-top: clamp(24px, 4vh, 40px);
  padding-top: 16px;
  border-top: 1px dashed var(--lj-line);
  line-height: 1.9;
}

/* ---------- 来访与地域 ---------- */
.page-contact .contact-visit {
  display: grid;
  gap: clamp(26px, 4vw, 44px);
  padding: clamp(24px, 4vw, 40px);
  background: var(--lj-panel);
  border: var(--pc-border);
  box-shadow: var(--pc-shadow);
}

.page-contact .contact-visit__main .lj-h2 {
  margin-top: 10px;
  max-width: 22ch;
}

.page-contact .contact-visit__main p {
  margin-top: 16px;
  max-width: 54ch;
  font-size: 16px;
  line-height: 1.78;
  color: var(--lj-muted);
}

.page-contact .contact-visit__facts {
  margin: 0;
  display: grid;
  gap: 1px;
  background: var(--lj-line);
  border: 1px solid var(--lj-line);
}

.page-contact .contact-visit__fact {
  padding: 14px 16px;
  background: var(--lj-print);
}

.page-contact .contact-visit__fact dt {
  font-family: var(--lj-font-num);
  font-size: 12px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--lj-muted);
}

.page-contact .contact-visit__val {
  margin: 8px 0 0;
  font-family: var(--lj-font-num);
  font-size: 15px;
  line-height: 1.65;
  color: var(--lj-text);
  overflow-wrap: anywhere;
}

.page-contact .contact-visit__note {
  margin-top: 18px;
  max-width: 62ch;
  line-height: 1.85;
}

/* ---------- 断点 ---------- */
@media (min-width: 760px) {
  .page-contact .contact-hero__channels {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
    max-width: 960px;
  }
}

@media (min-width: 880px) {
  .page-contact .contact-split {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
  }

  .page-contact .contact-split__text {
    padding-right: clamp(12px, 3vw, 40px);
  }

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

  .page-contact .contact-checklist {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    align-items: start;
  }

  .page-contact .contact-rhythm {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 22px;
  }

  .page-contact .contact-visit {
    grid-template-columns: minmax(0, 6fr) minmax(0, 6fr);
    align-items: start;
  }
}

@media (min-width: 900px) {
  .page-contact .contact-topics {
    gap: 10px;
  }

  .page-contact .contact-topic {
    grid-template-columns: 84px minmax(0, 1fr) minmax(0, 1.1fr);
    align-items: start;
    gap: 24px;
    padding: 24px 26px;
  }

  .page-contact .contact-topic__materials {
    grid-column: 2 / -1;
    max-height: 0;
    opacity: 0;
    overflow: hidden;
    padding-top: 0;
    border-top: 1px dashed transparent;
    transition: max-height .45s var(--lj-ease), opacity .3s var(--lj-ease), padding-top .35s var(--lj-ease), border-color .35s var(--lj-ease);
  }

  .page-contact .contact-topic:hover .contact-topic__materials,
  .page-contact .contact-topic:focus-within .contact-topic__materials,
  .page-contact .contact-topic:focus-visible .contact-topic__materials {
    max-height: 9em;
    opacity: 1;
    padding-top: 14px;
    border-top-color: var(--lj-line);
  }

  .page-contact .contact-topic__num {
    font-size: 32px;
  }
}

@media (max-width: 560px) {
  .page-contact .contact-hero {
    padding-block: 96px 48px;
  }

  .page-contact .contact-channel {
    padding: 16px 16px 14px;
  }

  .page-contact .contact-visit {
    padding: 20px 16px;
  }

  .page-contact .contact-topics {
    gap: 10px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .contact-channel__copy,
  .page-contact .contact-topic,
  .page-contact .contact-topic__num,
  .page-contact .contact-topic__materials,
  .page-contact .contact-check,
  .page-contact .contact-link {
    transition: none;
  }

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