.page-contact {
  background: var(--ivory-050);
  color: var(--ink-text);
  padding-block: clamp(20px, 3vw, 44px) clamp(52px, 7vw, 104px);
  font-family: var(--font-body);
}

.page-contact .crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: clamp(20px, 3vw, 36px);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--slate-500);
}

.page-contact .crumbs a {
  color: var(--ink-700);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-contact .crumbs a:hover,
.page-contact .crumbs a:focus-visible {
  color: var(--gold-500);
  border-bottom-color: var(--gold-500);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  max-width: 60ch;
}

.page-contact .eyebrow {
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--gold-500);
  margin: 0 0 14px;
}

.page-contact .contact-hero h1 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(32px, 5.6vw, 62px);
  line-height: 1.16;
  letter-spacing: -0.02em;
  margin: 0 0 clamp(16px, 2.4vw, 26px);
  color: var(--ink-900);
}

.page-contact .lede {
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.8;
  color: #3d4b45;
  margin: 0;
}

/* ---------- 联系信息面板 ---------- */
.page-contact .contact-panel {
  position: relative;
  margin-top: clamp(30px, 4.6vw, 64px);
  border-radius: var(--radius-card);
  overflow: hidden;
  background: var(--ink-900);
  color: var(--ivory-050);
  box-shadow: var(--shadow-deep);
  isolation: isolate;
}

.page-contact .contact-panel__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.page-contact .contact-panel__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.26;
  filter: saturate(0.68);
}

.page-contact .contact-panel__grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: clamp(22px, 3vw, 40px);
  padding: clamp(24px, 3.6vw, 52px);
}

.page-contact .contact-panel__title {
  font-family: var(--font-display);
  font-size: clamp(20px, 2.4vw, 26px);
  font-weight: 700;
  letter-spacing: 0.04em;
  margin: 0 0 clamp(20px, 3vw, 32px);
  color: var(--gold-300);
}

.page-contact .contact-line {
  padding-bottom: clamp(18px, 2.4vw, 28px);
  border-bottom: 1px solid var(--hair);
  margin-bottom: clamp(18px, 2.4vw, 28px);
}

.page-contact .contact-line:last-child {
  border-bottom: 0;
  margin-bottom: 0;
  padding-bottom: 0;
}

.page-contact .contact-line__label {
  margin: 0 0 8px;
  font-size: 11px;
  letter-spacing: 0.16em;
  color: rgba(250, 246, 234, 0.6);
}

.page-contact .contact-line__value {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(18px, 3.6vw, 33px);
  line-height: 1.32;
  letter-spacing: -0.01em;
  color: var(--ivory-050);
  text-decoration: none;
  overflow-wrap: anywhere;
  border-bottom: 2px solid var(--gold-line);
  padding-bottom: 6px;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-contact .contact-line__value--num {
  letter-spacing: 0.02em;
}

.page-contact .contact-line__value:hover,
.page-contact .contact-line__value:focus-visible {
  color: var(--gold-300);
  border-bottom-color: var(--gold-500);
  outline: none;
}

.page-contact .contact-line__value:focus-visible {
  box-shadow: 0 0 0 3px rgba(198, 161, 58, 0.35);
}

.page-contact .contact-line__note {
  margin: 12px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: rgba(250, 246, 234, 0.72);
  max-width: 44ch;
}

.page-contact .contact-panel__side {
  display: grid;
  gap: clamp(14px, 2vw, 18px);
  align-content: start;
}

.page-contact .side-card {
  border: 1px solid var(--hair);
  border-radius: var(--radius-card);
  background: rgba(250, 246, 234, 0.09);
  backdrop-filter: blur(9px);
  padding: clamp(16px, 2.2vw, 24px);
  transition: background 0.25s var(--ease), border-color 0.25s var(--ease);
}

.page-contact .side-card:hover {
  background: rgba(250, 246, 234, 0.15);
}

.page-contact .side-card--gold {
  border-color: rgba(198, 161, 58, 0.55);
}

.page-contact .side-card__label {
  margin: 0 0 8px;
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--gold-300);
}

.page-contact .side-card__value {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--ivory-050);
}

.page-contact .side-card:first-child .side-card__value {
  font-family: var(--font-mono);
  font-size: clamp(17px, 2vw, 20px);
  letter-spacing: 0.01em;
}

.page-contact .side-card__hint {
  margin: 10px 0 0;
  font-size: 12.5px;
  line-height: 1.65;
  color: rgba(250, 246, 234, 0.62);
}

.page-contact .side-card__link {
  display: inline-block;
  margin-top: 12px;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--gold-300);
  text-decoration: none;
  border-bottom: 1px solid var(--gold-line);
  padding-bottom: 3px;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-contact .side-card__link:hover,
.page-contact .side-card__link:focus-visible {
  color: var(--ivory-050);
  border-bottom-color: var(--gold-300);
}

/* ---------- 反馈准备 ---------- */
.page-contact .contact-prep {
  display: grid;
  gap: clamp(26px, 4vw, 52px);
  margin-top: clamp(48px, 7vw, 96px);
}

.page-contact .contact-prep__title {
  font-family: var(--font-display);
  font-size: clamp(24px, 3.4vw, 38px);
  font-weight: 800;
  line-height: 1.28;
  letter-spacing: -0.015em;
  margin: 0 0 clamp(14px, 2vw, 20px);
  color: var(--ink-900);
}

.page-contact .prose {
  font-size: 15.5px;
  line-height: 1.85;
  color: #3d4b45;
  margin: 0 0 clamp(22px, 3vw, 32px);
  max-width: 56ch;
}

.page-contact .checklist {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: clamp(14px, 2vw, 20px);
}

.page-contact .checklist__item {
  display: grid;
  grid-template-columns: 24px 1fr;
  gap: 14px;
  padding-bottom: clamp(14px, 2vw, 20px);
  border-bottom: 1px solid var(--paper-line);
}

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

.page-contact .checklist__mark {
  position: relative;
  width: 22px;
  height: 22px;
  margin-top: 4px;
  border: 1.5px solid var(--gold-500);
  border-radius: 4px;
  background: var(--ivory-100);
}

.page-contact .checklist__mark::after {
  content: "";
  position: absolute;
  left: 6px;
  top: 2px;
  width: 7px;
  height: 12px;
  border-right: 2px solid var(--ink-700);
  border-bottom: 2px solid var(--ink-700);
  transform: rotate(40deg);
}

.page-contact .checklist__title {
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 700;
  letter-spacing: 0.01em;
  margin: 0 0 6px;
  color: var(--ink-900);
}

.page-contact .checklist__desc {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: #4a5852;
}

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

.page-contact .prep-frame {
  border: 1px solid var(--paper-line);
  border-radius: var(--radius-card);
  overflow: hidden;
  background: var(--ink-700);
  box-shadow: var(--shadow-deep);
}

.page-contact .prep-frame img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 10 / 7;
  object-fit: cover;
}

.page-contact .contact-prep__figure figcaption {
  margin-top: 12px;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--slate-500);
  border-left: 2px solid var(--gold-500);
  padding-left: 10px;
}

/* ---------- 合作 ---------- */
.page-contact .contact-collab {
  margin-top: clamp(48px, 7vw, 96px);
  padding-top: clamp(28px, 4vw, 44px);
  border-top: 1px solid var(--paper-line);
  display: grid;
  gap: clamp(24px, 3.6vw, 48px);
}

.page-contact .contact-collab__title {
  font-family: var(--font-display);
  font-size: clamp(24px, 3.4vw, 38px);
  font-weight: 800;
  line-height: 1.26;
  letter-spacing: -0.015em;
  margin: 0 0 14px;
  color: var(--ink-900);
}

.page-contact .contact-collab__lede {
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.8;
  color: #3d4b45;
  max-width: 46ch;
}

.page-contact .contact-collab__meta {
  margin: 0;
  font-size: 13px;
  line-height: 1.8;
  color: var(--slate-500);
  max-width: 46ch;
}

.page-contact .contact-collab__meta a {
  color: var(--ink-700);
  text-decoration: none;
  border-bottom: 1px solid var(--gold-line);
}

.page-contact .contact-collab__meta a:hover,
.page-contact .contact-collab__meta a:focus-visible {
  color: var(--gold-500);
  border-bottom-color: var(--gold-500);
}

.page-contact .contact-collab__body {
  display: grid;
  gap: 12px;
  align-content: start;
}

.page-contact .collab-block {
  border: 1px solid var(--paper-line);
  border-radius: var(--radius-card);
  background: var(--ivory-100);
  transition: border-color 0.25s var(--ease), background 0.25s var(--ease);
}

.page-contact .collab-block:hover {
  border-color: var(--gold-500);
}

.page-contact .collab-block summary {
  cursor: pointer;
  list-style: none;
  padding: clamp(14px, 2vw, 18px) clamp(16px, 2.2vw, 22px);
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 700;
  color: var(--ink-900);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.page-contact .collab-block summary::-webkit-details-marker {
  display: none;
}

.page-contact .collab-block summary::after {
  content: "+";
  font-family: var(--font-mono);
  font-size: 18px;
  color: var(--gold-500);
  line-height: 1;
}

.page-contact .collab-block[open] summary::after {
  content: "−";
}

.page-contact .collab-block summary:focus-visible {
  outline: var(--focus-ring);
  outline-offset: -3px;
}

.page-contact .collab-block__body {
  padding: 0 clamp(16px, 2.2vw, 22px) clamp(16px, 2.2vw, 20px);
  border-top: 1px solid var(--paper-line);
}

.page-contact .collab-block__body p {
  margin: 14px 0 0;
  font-size: 13.5px;
  line-height: 1.8;
  color: #44524c;
}

.page-contact .collab-block__body a {
  color: var(--ink-700);
  text-decoration: none;
  border-bottom: 1px solid var(--gold-line);
}

.page-contact .collab-block__body a:hover,
.page-contact .collab-block__body a:focus-visible {
  color: var(--gold-500);
  border-bottom-color: var(--gold-500);
}

/* ---------- 到访横带 ---------- */
.page-contact .contact-visit {
  margin-top: clamp(48px, 7vw, 96px);
  background: var(--ink-900);
  color: var(--ivory-050);
  border-radius: var(--radius-card);
  padding: clamp(24px, 4vw, 56px);
  scroll-margin-top: 96px;
}

.page-contact .contact-visit__inner {
  display: grid;
  gap: clamp(22px, 3vw, 36px);
}

.page-contact .contact-visit__head h2 {
  font-family: var(--font-display);
  font-size: clamp(22px, 3vw, 32px);
  font-weight: 800;
  line-height: 1.28;
  margin: 0 0 12px;
  color: var(--ivory-050);
}

.page-contact .contact-visit__head p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: rgba(250, 246, 234, 0.72);
  max-width: 42ch;
}

.page-contact .visit-facts {
  margin: 0;
  display: grid;
  gap: 0;
  border-top: 1px solid var(--hair);
}

.page-contact .visit-facts__row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 6px;
  padding: 14px 0;
  border-bottom: 1px solid var(--hair);
}

.page-contact .visit-facts dt {
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--gold-300);
}

.page-contact .visit-facts dd {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--ivory-050);
}

.page-contact .contact-visit__links {
  margin: 0;
  font-size: 13px;
  line-height: 1.9;
  color: rgba(250, 246, 234, 0.66);
}

.page-contact .contact-visit__links a {
  color: var(--gold-300);
  text-decoration: none;
  border-bottom: 1px solid var(--gold-line);
  margin: 0 2px;
}

.page-contact .contact-visit__links a:hover,
.page-contact .contact-visit__links a:focus-visible {
  color: var(--ivory-050);
  border-bottom-color: var(--gold-300);
}

/* ---------- 桌面布局 ---------- */
@media (min-width: 800px) {
  .page-contact .contact-panel__grid {
    grid-template-columns: 1.15fr 0.85fr;
    align-items: start;
  }

  .page-contact .contact-prep {
    grid-template-columns: 1.08fr 0.92fr;
    align-items: start;
  }

  .page-contact .contact-collab {
    grid-template-columns: 0.85fr 1.15fr;
    align-items: start;
  }

  .page-contact .visit-facts__row {
    grid-template-columns: 150px 1fr;
    gap: 24px;
    align-items: baseline;
  }

  .page-contact .contact-visit__inner {
    grid-template-columns: 0.9fr 1.1fr;
    align-items: start;
  }

  .page-contact .contact-visit__links {
    grid-column: 1 / -1;
    border-top: 1px solid var(--hair);
    padding-top: 18px;
  }
}

@media (min-width: 1120px) {
  .page-contact .contact-prep {
    grid-template-columns: 1.05fr 0.95fr;
    gap: clamp(40px, 5vw, 72px);
  }

  .page-contact .contact-prep__figure {
    position: sticky;
    top: 96px;
  }
}
</