.page-contact {
  --cut: 22px;
  --panel-edge: 3px;
}

/* 面包屑与首屏 */
.page-contact .contact-hero {
  padding-block: clamp(1.5rem, 4vw, 2.5rem) clamp(3rem, 7vw, 5.5rem);
}

.page-contact .breadcrumb {
  margin-bottom: clamp(1.5rem, 4vw, 2.5rem);
}

.page-contact .hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(2rem, 6vw, 3.5rem);
}

@media (min-width: 960px) {
  .page-contact .hero-grid {
    grid-template-columns: minmax(0, 0.84fr) minmax(0, 1.16fr);
    align-items: start;
    gap: clamp(2.5rem, 5vw, 4.5rem);
  }
}

.page-contact .hero-aside {
  min-width: 0;
}

.page-contact .hero-aside h1 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2rem, 5.2vw, 3.1rem);
  line-height: 1.18;
  letter-spacing: -0.01em;
  margin: 0.6rem 0 0;
  color: var(--paper);
}

.page-contact .hero-aside .lede {
  margin-top: 1rem;
  max-width: var(--measure);
  color: var(--text-on-dark);
  font-size: clamp(1rem, 1.6vw, 1.09rem);
  line-height: 1.85;
}

.page-contact .hero-figure {
  margin: clamp(1.6rem, 4vw, 2.4rem) 0 clamp(1.8rem, 4vw, 2.6rem);
}

/* 渠道卡片 */
.page-contact .channel-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1.15rem;
}

.page-contact .channel-card {
  position: relative;
  background: var(--ink-2);
  border: var(--panel-edge) solid var(--line);
  padding: 1.35rem 1.4rem 1.5rem;
  clip-path: polygon(var(--cut) 0, 100% 0, 100% 100%, 0 100%, 0 var(--cut));
  transition: border-color 0.24s var(--ease), transform 0.24s var(--ease),
    filter 0.24s var(--ease);
}

.page-contact .channel-card:hover,
.page-contact .channel-card:focus-within {
  border-color: var(--amber);
  transform: translateY(-3px);
  filter: drop-shadow(6px 6px 0 rgba(217, 164, 65, 0.3));
}

.page-contact .channel-name {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.4rem, 3vw, 1.85rem);
  line-height: 1.2;
  letter-spacing: 0.01em;
  color: var(--paper);
}

.page-contact .channel-slot {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  margin: 0.65rem 0 0;
  padding: 0.25rem 0.7rem;
  border: 1px solid rgba(168, 216, 200, 0.35);
  border-radius: var(--radius-pill);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--mist);
}

.page-contact .channel-slot::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--celadon);
  flex: none;
}

.page-contact .channel-value {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.55rem;
  margin-top: 1rem;
  font-size: 0.92rem;
}

.page-contact .channel-value .mono {
  color: var(--amber);
  overflow-wrap: anywhere;
  word-break: break-word;
  line-height: 1.5;
}

.page-contact .copy-btn {
  flex: none;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  color: var(--sand);
  background: transparent;
  border: 2px solid var(--line);
  border-radius: var(--radius-pill);
  padding: 0.28rem 0.72rem;
  cursor: pointer;
  transition: border-color 0.2s var(--ease), color 0.2s var(--ease),
    background-color 0.2s var(--ease);
}

.page-contact .copy-btn:hover,
.page-contact .copy-btn:focus-visible {
  border-color: var(--amber);
  color: var(--amber);
  background: rgba(217, 164, 65, 0.12);
}

.page-contact .channel-scope {
  margin: 0.95rem 0 0;
  font-size: 0.94rem;
  line-height: 1.85;
  color: var(--text-on-dark);
  opacity: 0.84;
}

/* 准备清单 */
.page-contact .prep-board {
  background: linear-gradient(180deg, var(--ink-2) 0%, var(--ink) 92%);
  border: var(--panel-edge) solid var(--line);
  border-top: 8px solid var(--amber);
  padding: clamp(1.4rem, 4vw, 2.5rem);
}

.page-contact .prep-head h2 {
  margin: 0.5rem 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.5rem, 3.4vw, 2.2rem);
  line-height: 1.25;
  color: var(--paper);
}

.page-contact .prep-intro {
  margin: 0.9rem 0 0;
  max-width: var(--measure);
  color: var(--text-on-dark);
  font-size: 0.97rem;
  line-height: 1.85;
}

.page-contact .prep-meter {
  display: flex;
  gap: 0.35rem;
  margin: 1.4rem 0 0.7rem;
}

.page-contact .prep-meter i {
  display: block;
  flex: 1 1 0;
  height: 8px;
  background: rgba(107, 91, 69, 0.55);
  border: 1px solid var(--line);
  transition: background-color 0.24s var(--ease), border-color 0.24s var(--ease);
}

.page-contact .prep-board:has(.check-item:nth-child(1) .check-input:checked) .prep-meter i:nth-child(1),
.page-contact .prep-board:has(.check-item:nth-child(2) .check-input:checked) .prep-meter i:nth-child(2),
.page-contact .prep-board:has(.check-item:nth-child(3) .check-input:checked) .prep-meter i:nth-child(3),
.page-contact .prep-board:has(.check-item:nth-child(4) .check-input:checked) .prep-meter i:nth-child(4),
.page-contact .prep-board:has(.check-item:nth-child(5) .check-input:checked) .prep-meter i:nth-child(5),
.page-contact .prep-board:has(.check-item:nth-child(6) .check-input:checked) .prep-meter i:nth-child(6) {
  background: var(--celadon);
  border-color: var(--celadon);
}

.page-contact .prep-ready {
  margin: 0;
  visibility: hidden;
  opacity: 0;
  transform: translateY(6px);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: 0.02em;
  color: var(--mist);
  transition: opacity 0.28s var(--ease), transform 0.28s var(--ease),
    visibility 0.28s var(--ease);
}

.page-contact .prep-board:not(:has(.check-input:not(:checked))) .prep-ready {
  visibility: visible;
  opacity: 1;
  transform: none;
}

.page-contact .checklist {
  list-style: none;
  margin: 1.6rem 0 0;
  padding: 0;
}

.page-contact .check-item {
  position: relative;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 0.35rem 1rem;
  padding: 1.05rem 0;
  border-top: 1px solid rgba(107, 91, 69, 0.5);
  cursor: pointer;
}

.page-contact .check-item:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-contact .check-input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  margin: 0;
}

.page-contact .check-box {
  grid-column: 1;
  width: 22px;
  height: 22px;
  margin-top: 0.28rem;
  border: 2px solid var(--line);
  background: transparent;
  position: relative;
  transition: background-color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-contact .check-input:checked ~ .check-box {
  background: var(--celadon);
  border-color: var(--celadon);
}

.page-contact .check-input:checked ~ .check-box::after {
  content: "";
  position: absolute;
  left: 6px;
  top: 1px;
  width: 5px;
  height: 11px;
  border-right: 2px solid var(--ink);
  border-bottom: 2px solid var(--ink);
  transform: rotate(42deg);
}

.page-contact .check-item:has(.check-input:focus-visible) .check-box {
  outline: 2px solid var(--amber);
  outline-offset: 3px;
}

.page-contact .check-text {
  grid-column: 2;
  min-width: 0;
  font-size: 0.95rem;
  line-height: 1.85;
  color: var(--text-on-dark);
  opacity: 0.86;
  transition: opacity 0.2s var(--ease);
}

.page-contact .check-text strong {
  display: block;
  margin-bottom: 0.2rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.02rem;
  color: var(--paper);
  opacity: 1;
}

.page-contact .check-item:has(.check-input:checked) .check-text {
  opacity: 0.58;
}

/* 米纸白路径区 */
.page-contact .paths {
  padding-block: clamp(2.8rem, 7vw, 5rem);
}

.page-contact .paths-head {
  max-width: 46rem;
}

.page-contact .paths h3 {
  margin: 0 0 0.5rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.15rem;
  line-height: 1.35;
  color: var(--text-ink);
}

.page-contact .path-list {
  margin-top: clamp(1.8rem, 4vw, 2.6rem);
  border-top: 2px solid rgba(107, 91, 69, 0.4);
}

.page-contact .path-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0.6rem;
  padding: clamp(1.3rem, 3vw, 1.9rem) 0;
  border-bottom: 2px solid rgba(107, 91, 69, 0.4);
}

@media (min-width: 820px) {
  .page-contact .path-row {
    grid-template-columns: 10.5rem minmax(0, 1fr) 9rem;
    gap: 1.6rem;
    align-items: start;
  }
}

.page-contact .path-tag {
  align-self: start;
  justify-self: start;
  margin: 0;
  padding: 0.3rem 0.75rem;
  font-size: 0.74rem;
  letter-spacing: 0.1em;
  color: var(--paper);
  background: var(--wine);
  border-radius: var(--radius-pill);
}

.page-contact .path-body {
  min-width: 0;
}

.page-contact .path-body p {
  margin: 0;
  max-width: 42rem;
  font-size: 0.97rem;
  line-height: 1.9;
  color: #3a3630;
}

.page-contact .path-time {
  margin: 0;
  font-size: 0.8rem;
  letter-spacing: 0.04em;
  color: #6b5b45;
  white-space: nowrap;
}

@media (max-width: 819px) {
  .page-contact .path-time {
    white-space: normal;
  }
}

/* 收尾引导 */
.page-contact .closing {
  padding-block: clamp(2.8rem, 7vw, 5rem);
}

.page-contact .closing-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(1.8rem, 5vw, 3rem);
  align-items: center;
}

@media (min-width: 860px) {
  .page-contact .closing-grid {
    grid-template-columns: minmax(0, 0.7fr) minmax(0, 1.3fr);
    gap: clamp(2rem, 5vw, 3.6rem);
  }
}

.page-contact .closing-figure {
  margin: 0;
  max-width: 26rem;
}

.page-contact .closing-copy h2 {
  margin: 0.5rem 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.5rem, 3.6vw, 2.15rem);
  line-height: 1.28;
  color: var(--paper);
}

.page-contact .closing-copy p {
  margin: 0.9rem 0 0;
  max-width: 40rem;
  color: var(--text-on-dark);
  font-size: 0.98rem;
  line-height: 1.9;
}

.page-contact .closing-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-top: 1.5rem;
}

.page-contact .legal-strip {
  margin: clamp(2.4rem, 6vw, 3.6rem) 0 0;
  padding-top: 1rem;
  border-top: 1px solid rgba(107, 91, 69, 0.55);
  font-size: 0.76rem;
  letter-spacing: 0.06em;
  color: rgba(230, 224, 211, 0.62);
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .channel-card,
  .page-contact .copy-btn,
  .page-contact .prep-meter i,
  .page-contact .prep-ready,
  .page-contact .check-box,
  .page-contact .check-text {
    transition: none;
  }

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