.page-contact {
  --contact-card-radius: 2px;
  --contact-gap: clamp(18px, 3.4vw, 32px);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  overflow: hidden;
  padding: calc(var(--header-h) + 40px) 0 clamp(48px, 7vw, 88px);
  background:
    linear-gradient(155deg, var(--night) 0%, var(--royal) 58%, var(--night) 100%);
  color: var(--paper);
}

.page-contact .contact-hero::after {
  content: "";
  position: absolute;
  right: -14%;
  bottom: -40%;
  width: 62%;
  height: 150%;
  background: linear-gradient(200deg, rgba(28, 78, 128, 0.42), rgba(18, 98, 92, 0.16));
  transform: rotate(16deg);
  pointer-events: none;
}

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

.page-contact .contact-hero .breadcrumbs {
  margin-bottom: clamp(22px, 4vw, 38px);
}

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

.page-contact .contact-hero h1 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(38px, 8.4vw, 82px);
  line-height: 1.04;
  letter-spacing: -0.01em;
  margin: 14px 0 clamp(18px, 3vw, 26px);
  max-width: 15ch;
  color: var(--paper);
}

.page-contact .contact-lede {
  max-width: 40ch;
  font-size: clamp(15px, 1.9vw, 17px);
  line-height: 1.78;
  color: rgba(237, 232, 222, 0.86);
  margin: 0;
}

.page-contact .hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: clamp(24px, 4vw, 36px) 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .contact-hero .tag {
  border: 1px solid var(--line-strong);
  color: rgba(237, 232, 222, 0.84);
}

.page-contact .contact-hero .tag--gold {
  border-color: var(--gold);
  color: var(--gold);
}

/* ---------- 三条通道 ---------- */
.page-contact .contact-channels {
  padding-top: clamp(52px, 8vw, 96px);
  padding-bottom: clamp(56px, 9vw, 104px);
}

.page-contact .contact-channels .section-lead {
  max-width: 46ch;
}

.page-contact .channel-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--contact-gap);
  margin-top: clamp(28px, 4.5vw, 48px);
}

.page-contact .channel-card {
  position: relative;
  display: flex;
  flex-direction: column;
  min-height: 250px;
  padding: 24px 22px 0;
  background: var(--paper);
  color: var(--ink);
  border: 2px solid rgba(217, 169, 74, 0.42);
  border-radius: var(--contact-card-radius);
  box-shadow: var(--shadow-hard);
  transition: transform 220ms ease, border-color 220ms ease, box-shadow 220ms ease;
}

.page-contact .channel-card:hover,
.page-contact .channel-card:focus-within {
  transform: translateY(-4px);
  border-color: var(--gold);
}

.page-contact .channel-num {
  display: block;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--chart);
  margin-bottom: 14px;
}

.page-contact .channel-name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(20px, 2.6vw, 24px);
  letter-spacing: 0.02em;
  margin: 0 0 14px;
  color: var(--royal);
}

.page-contact .channel-value {
  font-size: clamp(15px, 2.1vw, 19px);
  line-height: 1.5;
  color: var(--night);
  margin: 0 0 16px;
  word-break: break-word;
}

.page-contact .channel-value--addr {
  font-family: var(--font-body);
  font-weight: 600;
  letter-spacing: 0.01em;
}

.page-contact .channel-note {
  font-size: 14.5px;
  line-height: 1.7;
  color: #3b4characters;
  color: #3b4653;
  margin: 0;
  padding-bottom: 26px;
}

.page-contact .channel-strip {
  display: block;
  height: 8px;
  margin: auto -22px 0;
  border-radius: 0 0 var(--contact-card-radius) var(--contact-card-radius);
}

.page-contact .channel-strip--gold { background: var(--gold); }
.page-contact .channel-strip--amber { background: var(--amber); }
.page-contact .channel-strip--chart { background: var(--chart); }

/* 地址视觉带 */
.page-contact .addr-band {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  margin-top: clamp(34px, 5.4vw, 64px);
}

.page-contact .addr-media {
  margin: 0;
  border: 3px solid var(--gold);
}

.page-contact .addr-media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(0.82) contrast(1.04);
}

.page-contact .addr-media .media-caption {
  background: var(--night);
  color: var(--steel);
  font-size: 12.5px;
  letter-spacing: 0.04em;
  padding: 12px 16px;
}

.page-contact .addr-pin {
  position: relative;
  background: var(--night);
  border: 2px solid var(--gold);
  border-left: 6px solid var(--gold);
  box-shadow: var(--shadow-hard);
  padding: 22px 20px 24px;
  color: var(--paper);
}

.page-contact .addr-dot {
  display: block;
  width: 10px;
  height: 10px;
  margin-bottom: 14px;
  border-radius: 50%;
  background: var(--amber);
  box-shadow: 0 0 0 6px rgba(255, 138, 31, 0.18);
}

.page-contact .addr-label {
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--gold);
  margin: 0 0 10px;
}

.page-contact .addr-value {
  font-size: 16px;
  line-height: 1.65;
  margin: 0 0 12px;
  color: var(--paper);
}

.page-contact .addr-hint {
  font-size: 13px;
  line-height: 1.7;
  color: var(--steel);
  margin: 0;
}

/* ---------- 中段：来信清单 + 可协助范围 ---------- */
.page-contact .contact-detail {
  padding-top: clamp(52px, 8vw, 98px);
  padding-bottom: clamp(56px, 9vw, 104px);
}

.page-contact .detail-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(34px, 5vw, 56px);
  align-items: start;
}

.page-contact .detail-side {
  display: grid;
  gap: 26px;
  min-width: 0;
}

.page-contact .sticky-block {
  background: rgba(237, 232, 222, 0.04);
  border: 1px solid var(--line);
  border-top: 4px solid var(--gold);
  padding: 24px 20px 26px;
}

.page-contact .sticky-block .eyebrow {
  color: var(--gold);
}

.page-contact .sticky-block .section-title {
  color: var(--paper);
  margin: 12px 0 14px;
}

.page-contact .detail-intro {
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--steel);
  margin: 0 0 22px;
  max-width: 32ch;
}

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

.page-contact .bring-item {
  display: grid;
  grid-template-columns: 42px 1fr;
  gap: 10px;
  padding: 16px 0;
  border-top: 1px solid var(--line);
}

.page-contact .bring-item:last-child {
  border-bottom: 1px solid var(--line);
}

.page-contact .bring-body h3 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 17px;
  letter-spacing: 0.03em;
  margin: 0 0 6px;
  color: var(--paper);
}

.page-contact .bring-body p {
  font-size: 14px;
  line-height: 1.7;
  color: rgba(237, 232, 222, 0.72);
  margin: 0;
}

.page-contact .bring-media {
  margin: 0;
  border: 3px solid var(--gold);
}

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

.page-contact .bring-media .media-caption {
  background: rgba(7, 22, 43, 0.9);
  color: var(--steel);
  font-size: 12.5px;
  line-height: 1.6;
  padding: 12px 16px;
}

.page-contact .detail-main {
  display: grid;
  gap: clamp(38px, 6vw, 64px);
  min-width: 0;
}

.page-contact .help-block .eyebrow,
.page-contact .reply-block .eyebrow {
  color: var(--gold-soft);
}

.page-contact .help-block .section-title,
.page-contact .reply-block .section-title {
  color: var(--paper);
  margin: 12px 0 24px;
}

.page-contact .help-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.page-contact .help-item {
  position: relative;
  padding: 20px 20px 20px 24px;
  background: rgba(14, 42, 74, 0.62);
  border: 1px solid var(--line);
  border-left: 6px solid var(--chart);
}

.page-contact .help-item h3 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 18px;
  letter-spacing: 0.04em;
  margin: 0 0 8px;
  color: var(--paper);
}

.page-contact .help-item p {
  font-size: 14.5px;
  line-height: 1.72;
  color: rgba(237, 232, 222, 0.76);
  margin: 0;
}

.page-contact .help-item--gold { border-left-color: var(--gold); }
.page-contact .help-item--amber { border-left-color: var(--amber); }
.page-contact .help-item--chart { border-left-color: var(--chart); }
.page-contact .help-item--jewel { border-left-color: var(--jewel); }

.page-contact .reply-list {
  list-style: none;
  margin: 0 0 30px;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-contact .reply-item {
  display: grid;
  grid-template-columns: 74px 1fr;
  gap: 14px;
  align-items: start;
  padding: 16px 0;
  border-top: 1px solid var(--line);
}

.page-contact .reply-item:last-child {
  border-bottom: 1px solid var(--line);
}

.page-contact .reply-mark {
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--night);
  background: var(--gold);
  padding: 4px 6px;
  text-align: center;
}

.page-contact .reply-item p {
  font-size: 14.5px;
  line-height: 1.72;
  color: rgba(237, 232, 222, 0.78);
  margin: 0;
}

.page-contact .disclosure {
  border: 1px solid var(--line-strong);
  background: rgba(7, 22, 43, 0.55);
}

.page-contact .disclosure-trigger {
  color: var(--paper);
  font-size: 15px;
  letter-spacing: 0.02em;
}

.page-contact .disclosure-panel p {
  font-size: 14.5px;
  line-height: 1.75;
  color: rgba(237, 232, 222, 0.78);
  margin: 0;
  max-width: 42ch;
}

/* ---------- 下一步 ---------- */
.page-contact .contact-next {
  padding-top: clamp(48px, 7vw, 84px);
  padding-bottom: clamp(52px, 8vw, 92px);
}

.page-contact .next-rule {
  height: 4px;
  width: clamp(80px, 22vw, 220px);
  background: linear-gradient(90deg, var(--gold), var(--amber));
  margin-bottom: clamp(26px, 4vw, 40px);
}

.page-contact .contact-next .eyebrow {
  color: var(--chart);
}

.page-contact .contact-next .section-title {
  color: var(--ink);
  margin: 12px 0 18px;
  max-width: 20ch;
}

.page-contact .next-prose {
  max-width: 36ch;
  margin: 0 0 clamp(26px, 4vw, 38px);
}

.page-contact .next-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px 22px;
}

/* ---------- 桌面栅格 ---------- */
@media (min-width: 640px) {
  .page-contact .help-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-contact .addr-band {
    grid-template-columns: minmax(0, 1fr) 300px;
    align-items: end;
  }
}

@media (min-width: 860px) {
  .page-contact .channel-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .detail-grid {
    grid-template-columns: minmax(0, 0.62fr) minmax(0, 1fr);
    gap: clamp(40px, 4vw, 64px);
  }

  .page-contact .sticky-block {
    position: sticky;
    top: calc(var(--header-h) + 28px);
    padding: 28px 24px 30px;
  }
}

@media (min-width: 1080px) {
  .page-contact .contact-hero h1 {
    max-width: 18ch;
  }

  .page-contact .channel-card {
    padding: 28px 26px 0;
  }

  .page-contact .channel-strip {
    margin: auto -26px 0;
  }
}

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

  .page-contact .channel-card:hover,
  .page-contact .channel-card:focus-within {
    transform: none;
  }
}
</