.page-contact {
  --contact-gap: clamp(1.5rem, 4vw, 3.25rem);
  --contact-card-bg: rgba(20, 26, 23, 0.92);
  display: block;
  background: var(--ink);
  color: var(--cold);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  background: var(--ink);
  border-bottom: 1px solid var(--rule-soft);
}

.page-contact .contact-hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 40%;
  opacity: 0.4;
  filter: saturate(0.72) contrast(1.06);
}

.page-contact .contact-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background:
    linear-gradient(180deg, rgba(11, 19, 16, 0.92) 0%, rgba(11, 19, 16, 0.8) 56%, var(--ink) 100%),
    radial-gradient(120% 90% at 82% 12%, rgba(91, 227, 122, 0.16), transparent 62%);
}

.page-contact .contact-hero__inner {
  position: relative;
  z-index: 2;
  padding-block: clamp(2.4rem, 9vw, 5.5rem) clamp(2rem, 7vw, 4.5rem);
}

.page-contact .contact-hero__eyebrow {
  margin: 1.5rem 0 0;
  color: var(--neon);
}

.page-contact .contact-hero__title {
  margin: 0.6rem 0 0;
  font-family: var(--font-display);
  font-size: var(--step-h1);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.12;
  color: var(--cold);
  max-width: 20ch;
}

.page-contact .contact-hero__lead {
  margin: 1.1rem 0 0;
  max-width: 58ch;
  font-family: var(--font-body);
  font-size: var(--step-body);
  line-height: 1.75;
  color: rgba(244, 247, 243, 0.82);
}

.page-contact .contact-hero__facts {
  list-style: none;
  margin: clamp(1.8rem, 5vw, 2.75rem) 0 0;
  padding: 1px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--rule-soft);
  border: 1px solid var(--rule-soft);
  max-width: 62rem;
}

.page-contact .hero-fact {
  background: rgba(11, 19, 16, 0.72);
  padding: clamp(0.9rem, 2.6vw, 1.25rem);
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.page-contact .hero-fact__label {
  font-family: var(--font-body);
  font-size: var(--step-label);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--paper-dim);
}

.page-contact .hero-fact__value {
  font-family: var(--font-num);
  font-variant-numeric: tabular-nums;
  font-size: 1rem;
  letter-spacing: 0.01em;
  color: var(--gold);
}

@media (min-width: 48rem) {
  .page-contact .contact-hero__facts {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

/* ---------- 横向刻度线 ---------- */
.page-contact .contact-scale {
  height: 20px;
  border-bottom: 1px solid var(--rule-soft);
  background-image: repeating-linear-gradient(90deg, var(--rule) 0 1px, transparent 1px 32px);
  background-size: auto 10px;
  background-repeat: repeat-x;
  background-position: left top;
  opacity: 0.75;
}

/* ---------- 分屏主体 ---------- */
.page-contact .contact-directory {
  padding-block: clamp(2.25rem, 6vw, 4rem);
}

.page-contact .contact-split {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--contact-gap);
  align-items: start;
}

.page-contact .contact-directory__lead {
  margin-bottom: clamp(1.5rem, 4vw, 2.25rem);
}

.page-contact .contact-channels {
  display: grid;
  gap: 1rem;
}

.page-contact .channel-card {
  position: relative;
  background: var(--contact-card-bg);
  border: 1px solid var(--rule-soft);
  border-left: 3px solid var(--rule);
  padding: clamp(1.1rem, 3.2vw, 1.6rem);
  transition: border-color 0.24s ease, background 0.24s ease, transform 0.24s ease;
}

.page-contact .channel-card:hover {
  transform: translateY(-2px);
  background: var(--tier);
}

.page-contact .channel-card--mail {
  border-left-color: var(--neon);
}

.page-contact .channel-card--line {
  border-left-color: var(--gold);
}

.page-contact .channel-card__tag {
  margin: 0;
  font-family: var(--font-body);
  font-size: var(--step-label);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--paper-dim);
}

.page-contact .channel-card--mail .channel-card__tag {
  color: var(--neon);
}

.page-contact .channel-card--line .channel-card__tag {
  color: var(--gold);
}

.page-contact .channel-card__title {
  margin: 0.5rem 0 0;
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--cold);
}

.page-contact .channel-card__desc {
  margin: 0.65rem 0 0;
  font-family: var(--font-body);
  font-size: 0.9875rem;
  line-height: 1.75;
  color: rgba(244, 247, 243, 0.75);
}

.page-contact .channel-card__value {
  margin: 1rem 0 0;
  padding: 0.6rem 0.8rem;
  background: var(--grass);
  border: 1px solid var(--rule-soft);
  font-family: var(--font-num);
  font-variant-numeric: tabular-nums;
  font-size: 0.9375rem;
  letter-spacing: 0.01em;
  color: var(--cold);
  overflow-wrap: anywhere;
}

.page-contact .channel-card__value--gold {
  color: var(--gold);
}

.page-contact .channel-card__toggle {
  margin: 0.9rem 0 0;
  padding: 0.35rem 0;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: none;
  border: 0;
  font-family: var(--font-body);
  font-size: 0.8125rem;
  letter-spacing: 0.08em;
  color: var(--neon);
  cursor: pointer;
}

.page-contact .channel-card--line .channel-card__toggle {
  color: var(--gold);
}

.page-contact .channel-card__toggle::after {
  content: "＋";
  font-family: var(--font-num);
  font-size: 0.875rem;
  line-height: 1;
}

.page-contact .channel-card__toggle[aria-expanded="true"]::after {
  content: "－";
}

.page-contact .channel-card__panel {
  margin-top: 0.75rem;
  padding-top: 0.8rem;
  border-top: 1px solid var(--rule-soft);
}

.page-contact .channel-card__panel[hidden] {
  display: none;
}

.page-contact .channel-card__list {
  margin: 0;
  padding: 0 0 0 1.05rem;
  list-style: disc;
  font-family: var(--font-body);
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--paper-dim);
}

.page-contact .contact-directory__note {
  margin: clamp(1.25rem, 3.5vw, 1.9rem) 0 0;
  padding-top: 1rem;
  border-top: 1px solid var(--rule-soft);
  font-family: var(--font-body);
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--paper-dim);
}

/* ---------- 地址信息栏 ---------- */
.page-contact .contact-info {
  background: var(--tier);
  border: 1px solid var(--rule-soft);
  padding: clamp(1.25rem, 3.6vw, 2rem);
}

.page-contact .contact-info__title {
  margin: 0.5rem 0 0;
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--cold);
}

.page-contact .contact-info__lead {
  margin: 0.7rem 0 clamp(1rem, 3vw, 1.5rem);
  font-family: var(--font-body);
  font-size: 0.9875rem;
  line-height: 1.75;
  color: rgba(244, 247, 243, 0.75);
}

.page-contact .info-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.3rem;
  padding: 0.85rem 0;
  border-top: 1px solid var(--rule-soft);
}

.page-contact .info-row__label {
  font-family: var(--font-body);
  font-size: var(--step-label);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--paper-dim);
}

.page-contact .info-row__value {
  font-family: var(--font-num);
  font-variant-numeric: tabular-nums;
  font-size: 0.9375rem;
  line-height: 1.65;
  color: var(--cold);
  overflow-wrap: anywhere;
}

.page-contact .info-row__value--text {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.7;
}

@media (min-width: 34rem) {
  .page-contact .info-row {
    grid-template-columns: 6.5rem minmax(0, 1fr);
    gap: 0.35rem 1rem;
    align-items: baseline;
  }
}

/* ---------- 区位示意 ---------- */
.page-contact .contact-map {
  margin: clamp(1.1rem, 3vw, 1.6rem) 0 0;
}

.page-contact .contact-map__svg {
  display: block;
  width: 100%;
  height: auto;
  background: var(--ink);
  border: 1px solid var(--rule-soft);
}

.page-contact .contact-map__caption {
  margin: 0.6rem 0 0;
  font-family: var(--font-body);
  font-size: 0.8125rem;
  line-height: 1.7;
  color: var(--paper-dim);
}

/* ---------- 备案 ---------- */
.page-contact .contact-registry {
  margin-top: clamp(1.35rem, 3.6vw, 2rem);
  padding-top: clamp(1rem, 3vw, 1.4rem);
  border-top: 1px solid var(--rule-soft);
}

.page-contact .contact-registry__title {
  margin: 0 0 0.75rem;
  font-family: var(--font-display);
  font-size: 1.0625rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--cold);
}

.page-contact .registry-list {
  margin: 0;
}

.page-contact .registry-list__row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.2rem;
  padding: 0.55rem 0;
  border-bottom: 1px solid var(--rule-soft);
}

.page-contact .registry-list__row dt {
  font-family: var(--font-body);
  font-size: var(--step-label);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--paper-dim);
}

.page-contact .registry-list__row dd {
  margin: 0;
  font-family: var(--font-num);
  font-variant-numeric: tabular-nums;
  font-size: 0.9375rem;
  color: var(--cold);
  overflow-wrap: anywhere;
}

.page-contact .registry-list__row dd.is-key {
  color: var(--gold);
  letter-spacing: 0.02em;
}

@media (min-width: 34rem) {
  .page-contact .registry-list__row {
    grid-template-columns: 6.5rem minmax(0, 1fr);
    gap: 0.35rem 1rem;
    align-items: baseline;
  }
}

.page-contact .contact-registry__note {
  margin: 0.9rem 0 0;
  font-family: var(--font-body);
  font-size: 0.875rem;
  line-height: 1.75;
  color: var(--paper-dim);
}

/* ---------- 回复节奏 ---------- */
.page-contact .contact-service {
  padding-block: clamp(2.5rem, 7vw, 4.5rem);
  border-top: 1px solid var(--rule-soft);
}

.page-contact .contact-service__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.5rem, 4.5vw, 3rem);
  align-items: start;
}

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

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

.page-contact .contact-service__text .section__lead {
  margin-bottom: clamp(1.35rem, 4vw, 2rem);
}

.page-contact .contact-timeline {
  list-style: none;
  margin: 0;
  padding: 0;
  border-left: 1px solid var(--rule);
}

.page-contact .contact-timeline__item {
  position: relative;
  padding: 0 0 clamp(1.2rem, 3.5vw, 1.75rem) clamp(1.1rem, 3.5vw, 1.75rem);
}

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

.page-contact .contact-timeline__item::before {
  content: "";
  position: absolute;
  left: -3.5px;
  top: 0.42rem;
  width: 6px;
  height: 6px;
  background: var(--neon);
}

.page-contact .contact-timeline__item:nth-child(2)::before {
  background: var(--gold);
}

.page-contact .contact-timeline__item:nth-child(3)::before {
  background: var(--rule);
}

.page-contact .contact-timeline__mark {
  display: block;
  font-family: var(--font-num);
  font-variant-numeric: tabular-nums;
  font-size: var(--step-label);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--neon);
}

.page-contact .contact-timeline__item:nth-child(2) .contact-timeline__mark {
  color: var(--gold);
}

.page-contact .contact-timeline__item:nth-child(3) .contact-timeline__mark {
  color: var(--paper-dim);
}

.page-contact .contact-timeline__text {
  margin: 0.45rem 0 0;
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.75;
  color: rgba(244, 247, 243, 0.8);
  max-width: 62ch;
}

.page-contact .contact-service__foot {
  margin: clamp(1.4rem, 4vw, 2rem) 0 0;
  padding-top: 1rem;
  border-top: 1px solid var(--rule-soft);
  font-family: var(--font-body);
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--paper-dim);
}

@media (min-width: 62rem) {
  .page-contact .contact-service__grid {
    grid-template-columns: minmax(0, 5.2fr) minmax(0, 6.8fr);
    gap: clamp(2rem, 5vw, 4rem);
  }
}

/* ---------- 合作区（暖纸） ---------- */
.page-contact .contact-partner {
  padding-block: clamp(2.5rem, 7vw, 4.5rem);
}

.page-contact .contact-partner__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.5rem, 4.5vw, 3rem);
  align-items: start;
}

.page-contact .contact-partner__eyebrow {
  color: var(--grass);
}

.page-contact .contact-partner__title {
  margin: 0.55rem 0 0;
  font-family: var(--font-display);
  font-size: var(--step-h2);
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-contact .contact-partner__lead {
  margin: 0.9rem 0 0;
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.75;
  color: rgba(11, 19, 16, 0.78);
  max-width: 60ch;
}

.page-contact .contact-partner__panel {
  background: rgba(11, 19, 16, 0.04);
  border: 1px solid var(--ink-rule);
  padding: clamp(1.15rem, 3.4vw, 1.75rem);
}

.page-contact .contact-partner__panel-title {
  margin: 0 0 0.9rem;
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--ink);
}

.page-contact .partner-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-contact .partner-list__item {
  display: grid;
  grid-template-columns: 2.1rem minmax(0, 1fr);
  gap: 0.75rem;
  align-items: baseline;
  padding: 0.7rem 0;
  border-top: 1px solid var(--ink-rule);
}

.page-contact .partner-list__item:last-child {
  border-bottom: 1px solid var(--ink-rule);
}

.page-contact .partner-list__index {
  font-family: var(--font-num);
  font-variant-numeric: tabular-nums;
  font-size: 0.8125rem;
  letter-spacing: 0.08em;
  color: var(--grass);
}

.page-contact .partner-list__text {
  font-family: var(--font-body);
  font-size: 0.9875rem;
  line-height: 1.7;
  color: rgba(11, 19, 16, 0.82);
}

.page-contact .contact-partner__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.25rem;
}

/* ---------- 桌面分屏 ---------- */
@media (min-width: 64rem) {
  .page-contact .contact-split {
    grid-template-columns: minmax(0, 6.2fr) minmax(0, 5.8fr);
    gap: clamp(2rem, 5vw, 4rem);
  }

  .page-contact .contact-split__aside {
    position: sticky;
    top: 6.5rem;
  }

  .page-contact .contact-partner__grid {
    grid-template-columns: minmax(0, 5.4fr) minmax(0, 6.6fr);
    gap: clamp(2rem, 5vw, 4rem);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .channel-card {
    transition: none;
  }

  .page-contact .channel-card:hover {
    transform: none;
  }
}