.page-contact {
  --contact-accent: var(--c-cobalt);
  --contact-rail: 88px;
  background: var(--c-mist);
  color: var(--c-ink);
  overflow-x: clip;
}

/* 首屏 */
.page-contact .hero {
  position: relative;
  overflow: hidden;
  padding: clamp(24px, 4.2vw, 52px) 0 clamp(76px, 10vw, 132px);
  background:
    radial-gradient(120% 140% at 84% 6%, rgba(27, 79, 216, .42), transparent 58%),
    linear-gradient(158deg, var(--c-lake) 0%, var(--c-night) 66%, #072b34 100%);
  color: var(--c-fog);
}

.page-contact .hero::before {
  content: "";
  position: absolute;
  right: -12%;
  bottom: -38%;
  left: 40%;
  height: 80%;
  background: linear-gradient(120deg, rgba(57, 230, 122, .18), rgba(27, 79, 216, .04));
  clip-path: polygon(20% 0, 100% 0, 100% 100%, 0 100%);
  pointer-events: none;
}

.page-contact .hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(220, 233, 236, .055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(220, 233, 236, .055) 1px, transparent 1px);
  background-size: 68px 68px;
  pointer-events: none;
}

.page-contact .hero > .wrap {
  position: relative;
  z-index: 1;
}

.page-contact .hero .crumbs {
  margin: 0 0 clamp(20px, 3vw, 34px);
}

.page-contact .hero__title {
  margin: 14px 0 0;
  max-width: 17ch;
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: clamp(32px, 6.2vw, 66px);
  line-height: 1.04;
  letter-spacing: -.022em;
  color: var(--c-paper);
}

.page-contact .hero__lead {
  margin: 20px 0 0;
  max-width: 44rem;
  font-size: var(--fs-body);
  line-height: 1.8;
  color: var(--fog-86);
}

.page-contact .hero__meta {
  margin: clamp(28px, 4vw, 46px) 0 0;
  padding-top: 22px;
  border-top: 1px solid var(--fog-16);
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.page-contact .hero__meta dt {
  font-family: var(--font-serif);
  font-size: var(--fs-eyebrow);
  letter-spacing: .06em;
  color: var(--c-turf);
}

.page-contact .hero__meta dd {
  margin: 6px 0 0;
  font-size: 15px;
  line-height: 1.65;
  color: var(--fog-86);
}

/* 首图带 */
.page-contact .media-band {
  position: relative;
  z-index: 2;
  margin-top: -clamp(48px, 7vw, 96px);
}

.page-contact .media-band .media {
  background: var(--c-night);
  border: 1px solid rgba(220, 233, 236, .22);
  box-shadow: 0 34px 74px -46px rgba(6, 42, 51, .92);
}

/* 渠道卡片 */
.page-contact .channel-grid {
  list-style: none;
  margin: clamp(28px, 4vw, 46px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--gap);
}

.page-contact .channel-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: clamp(20px, 2.6vw, 30px);
  background: var(--c-paper);
  border: 1px solid var(--ink-08);
  border-left: 3px solid var(--contact-accent);
  overflow: hidden;
}

.page-contact .channel-card--mail { --contact-accent: var(--c-cobalt); }
.page-contact .channel-card--phone { --contact-accent: var(--c-turf); }
.page-contact .channel-card--addr { --contact-accent: var(--c-cobalt-soft); }

.page-contact .channel-card--mail::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 64px;
  height: 64px;
  background: linear-gradient(135deg, rgba(27, 79, 216, .16), transparent 72%);
  clip-path: polygon(100% 0, 100% 100%, 0 0);
  pointer-events: none;
}

.page-contact .channel-card__label {
  margin: 0;
  font-family: var(--font-serif);
  font-size: var(--fs-eyebrow);
  letter-spacing: .1em;
  color: var(--ink-62);
}

.page-contact .channel-card__value {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(17px, 1.5vw, 21px);
  font-weight: 600;
  line-height: 1.45;
  letter-spacing: -.01em;
  color: var(--c-ink);
  font-variant-numeric: tabular-nums;
  overflow-wrap: anywhere;
}

.page-contact .channel-card--addr .channel-card__value {
  font-family: var(--font-sans);
  font-size: 17px;
  font-weight: 700;
  line-height: 1.62;
  letter-spacing: -.005em;
}

.page-contact .channel-card__desc {
  margin: auto 0 0;
  padding-top: 8px;
  font-size: 15.5px;
  line-height: 1.74;
  color: var(--ink-62);
}

/* 请求类型对照 */
.page-contact .ask-list {
  margin-top: clamp(26px, 3.6vw, 42px);
  border-top: 1px solid var(--ink-16);
}

.page-contact .ask-row {
  display: grid;
  gap: 10px;
  padding: clamp(18px, 2.4vw, 26px) 0;
  border-bottom: 1px solid var(--ink-16);
}

.page-contact .ask-row__type {
  margin: 0;
  display: flex;
  align-items: baseline;
  gap: 12px;
  font-size: var(--fs-sub);
  font-weight: 800;
  letter-spacing: -.012em;
  color: var(--c-ink);
}

.page-contact .ask-row__idx {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--c-cobalt);
}

.page-contact .ask-row__need {
  margin: 0;
  font-size: var(--fs-body);
  line-height: 1.8;
  color: var(--ink-78);
}

/* 更正流程 */
.page-contact .step-rail {
  display: flex;
  gap: 10px;
  margin-top: clamp(24px, 3.4vw, 38px);
  padding-bottom: 8px;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-contact .step-node {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  border: 1px solid var(--fog-34);
  color: var(--c-fog);
  font-size: 15px;
  line-height: 1.4;
  white-space: nowrap;
  text-decoration: none;
  transition: border-color .2s ease, background-color .2s ease;
}

.page-contact .step-node:hover,
.page-contact .step-node:focus-visible {
  border-color: var(--c-turf);
  background: rgba(57, 230, 122, .12);
  outline: none;
}

.page-contact .step-node__no {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--c-turf);
}

.page-contact .fix-list {
  list-style: none;
  margin: clamp(28px, 4vw, 44px) 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--fog-16);
  border: 1px solid var(--fog-16);
}

.page-contact .fix-item {
  display: grid;
  gap: 12px;
  padding: clamp(20px, 2.8vw, 30px);
  background: var(--c-night);
  scroll-margin-top: 130px;
}

.page-contact .fix-item:target {
  outline: 1px solid var(--c-turf);
  outline-offset: -1px;
}

.page-contact .fix-item__no {
  font-family: var(--font-mono);
  font-size: 32px;
  line-height: 1;
  letter-spacing: -.02em;
  color: var(--c-amber);
  font-variant-numeric: tabular-nums;
}

.page-contact .fix-item__body h3 {
  margin: 0 0 8px;
  font-size: var(--fs-sub);
  font-weight: 800;
  letter-spacing: -.01em;
  color: var(--c-paper);
}

.page-contact .fix-item__body p {
  margin: 0;
  font-size: 16px;
  line-height: 1.8;
  color: var(--fog-86);
}

/* 协作线索 */
.page-contact .collab-grid {
  margin-top: clamp(26px, 3.6vw, 42px);
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--gap);
}

.page-contact .collab-card {
  padding: clamp(20px, 2.6vw, 32px);
  background: var(--c-paper);
  border: 1px solid var(--ink-08);
  border-top: 3px solid var(--c-turf);
}

.page-contact .collab-card h3 {
  margin: 0 0 18px;
  font-size: var(--fs-sub);
  font-weight: 800;
  letter-spacing: -.01em;
  color: var(--c-ink);
}

.page-contact .collab-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-contact .collab-list li {
  position: relative;
  padding-left: 22px;
  font-size: 16px;
  line-height: 1.78;
  color: var(--ink-78);
}

.page-contact .collab-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .72em;
  width: 11px;
  height: 2px;
  background: var(--c-cobalt);
}

.page-contact .collab-card:first-child .collab-list li::before {
  background: var(--c-cobalt);
}

.page-contact .collab-card:last-child .collab-list li::before {
  background: var(--c-turf);
}

/* 回复时段 */
.page-contact .reply-strip {
  margin-top: clamp(26px, 3.6vw, 42px);
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--ink-16);
  border: 1px solid var(--ink-16);
}

.page-contact .reply-cell {
  padding: clamp(18px, 2.4vw, 26px);
  background: var(--c-paper);
}

.page-contact .reply-cell__k {
  margin: 0;
  font-family: var(--font-serif);
  font-size: var(--fs-eyebrow);
  letter-spacing: .08em;
  color: var(--ink-62);
}

.page-contact .reply-cell__v {
  margin: 9px 0 0;
  font-size: 16px;
  line-height: 1.76;
  color: var(--c-ink);
}

/* 地址与到访 */
.page-contact .visit-copy p {
  max-width: 42rem;
  font-size: var(--fs-body);
  line-height: 1.8;
  color: var(--ink-78);
}

.page-contact .visit-points {
  list-style: none;
  margin: clamp(18px, 2.6vw, 28px) 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
  border-top: 1px solid var(--ink-16);
  padding-top: clamp(18px, 2.6vw, 26px);
}

.page-contact .visit-points li {
  position: relative;
  padding-left: 20px;
  font-size: 15.5px;
  line-height: 1.75;
  color: var(--ink-62);
}

.page-contact .visit-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .74em;
  width: 8px;
  height: 8px;
  background: var(--c-cobalt-soft);
}

.page-contact .visit-media {
  margin: clamp(28px, 4vw, 44px) 0 0;
  background: var(--c-night);
  border: 1px solid var(--ink-08);
}

/* 延伸入口 */
.page-contact .more-wrap {
  max-width: 62rem;
}

.page-contact .more-list {
  list-style: none;
  margin: clamp(22px, 3vw, 34px) 0 0;
  padding: 0;
}

.page-contact .more-list__item {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px 20px;
  padding: 16px 0;
  border-bottom: 1px solid var(--ink-16);
}

.page-contact .more-list__item:first-child {
  border-top: 1px solid var(--ink-16);
}

.page-contact .more-list__label {
  font-size: 16.5px;
  line-height: 1.7;
  color: var(--c-cobalt);
  text-decoration: none;
}

.page-contact .more-list__label:hover,
.page-contact .more-list__label:focus-visible {
  color: var(--c-ink);
  text-decoration: underline;
  text-underline-offset: 4px;
  outline: none;
}

.page-contact .more-list__meta {
  font-family: var(--font-serif);
  font-size: 14px;
  letter-spacing: .06em;
  color: var(--ink-48);
  white-space: nowrap;
}

/* 响应式 */
@media (min-width: 720px) {
  .page-contact .hero__meta {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 26px;
  }

  .page-contact .reply-strip {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 860px) {
  .page-contact .ask-row {
    grid-template-columns: minmax(200px, 4fr) minmax(0, 8fr);
    gap: 32px;
    align-items: start;
  }

  .page-contact .fix-item {
    grid-template-columns: var(--contact-rail) minmax(0, 1fr);
    gap: 28px;
    align-items: start;
  }

  .page-contact .collab-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: clamp(24px, 4vw, 56px);
  }
}

@media (min-width: 960px) {
  .page-contact .channel-grid {
    grid-template-columns: repeat(12, minmax(0, 1fr));
  }

  .page-contact .channel-card--mail { grid-column: span 5; }
  .page-contact .channel-card--phone { grid-column: span 4; }
  .page-contact .channel-card--addr { grid-column: span 3; }

  .page-contact .visit-grid {
    display: grid;
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: clamp(28px, 4vw, 64px);
    align-items: center;
  }

  .page-contact .visit-media {
    margin-top: 0;
  }
}

@media (min-width: 1180px) {
  .page-contact .channel-card {
    min-height: 216px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .step-node,
  .page-contact .channel-card,
  .page-contact .ask-row,
  .page-contact .collab-card {
    transition: none;
  }
}