.page-contact {
  --contact-cut: 22px;
  --contact-gap: clamp(16px, 2.4vw, 26px);
  --contact-pad: clamp(20px, 2.8vw, 32px);
  background: var(--ink);
  color: var(--body-text);
  overflow-x: clip;
  padding-bottom: clamp(40px, 7vw, 88px);
}

.page-contact .crumbs {
  padding-top: clamp(14px, 2vw, 22px);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  padding-top: clamp(18px, 3vw, 34px);
}

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

.page-contact .contact-hero__copy h1 {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(34px, 7vw, 76px);
  line-height: 1.02;
  letter-spacing: -0.02em;
  color: var(--paper);
}

.page-contact .contact-hero__copy .lead {
  margin: 18px 0 0;
  max-width: 46ch;
  color: var(--body-text);
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.8;
}

.page-contact .contact-hero__meta {
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
  font-size: 13px;
  color: var(--muted);
}

.page-contact .contact-hero__meta li {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding-right: 22px;
  border-right: 1px solid var(--line);
}

.page-contact .contact-hero__meta li:last-child {
  border-right: 0;
  padding-right: 0;
}

.page-contact .contact-hero__meta .mono {
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--mint);
}

.page-contact .contact-shot {
  margin: 0;
  background: var(--ink-2);
  clip-path: polygon(0 0, calc(100% - 30px) 0, 100% 30px, 100% 100%, 0 100%);
  box-shadow: inset 0 0 0 1px var(--line);
  overflow: hidden;
}

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

/* ---------- 区块骨架 ---------- */
.page-contact .contact-block {
  padding-block: clamp(36px, 6vw, 68px);
}

.page-contact .contact-block + .contact-block {
  border-top: 1px solid var(--line);
}

.page-contact .contact-head {
  max-width: 720px;
  margin-bottom: clamp(20px, 3vw, 34px);
}

.page-contact .contact-head h2 {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-size: clamp(24px, 3.8vw, 40px);
  line-height: 1.14;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-contact .contact-head p {
  margin: 12px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
}

/* ---------- 渠道面板 ---------- */
.page-contact .channel-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--contact-gap);
}

.page-contact .channel {
  position: relative;
  padding: var(--contact-pad);
  background: linear-gradient(158deg, #16304d 0%, var(--ink-2) 64%);
  box-shadow: inset 0 0 0 1px var(--line);
  clip-path: polygon(0 0, calc(100% - var(--contact-cut)) 0, 100% var(--contact-cut), 100% 100%, 0 100%);
  transition: box-shadow 0.25s var(--ease), background 0.25s var(--ease);
}

.page-contact .channel::before {
  content: "";
  position: absolute;
  top: 0;
  left: var(--contact-pad);
  width: 42px;
  height: 3px;
  background: var(--line);
}

.page-contact .channel--mail {
  box-shadow: inset 0 0 0 1px var(--mint);
}

.page-contact .channel--mail::before {
  background: var(--mint);
}

.page-contact .channel--phone {
  box-shadow: inset 0 0 0 1px var(--amber);
}

.page-contact .channel--phone::before {
  background: var(--amber);
}

.page-contact .channel:hover {
  background: linear-gradient(158deg, #1d3d61 0%, var(--ink-2) 64%);
}

.page-contact .channel:hover::before {
  width: 88px;
}

.page-contact .channel__tag {
  margin: 0;
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-contact .channel h3 {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-size: 19px;
  letter-spacing: 0.01em;
  color: var(--paper);
}

.page-contact .channel__value {
  margin: 10px 0 0;
  font-family: var(--font-mono);
  font-size: clamp(15px, 1.8vw, 19px);
  line-height: 1.5;
  word-break: break-word;
  color: var(--paper);
}

.page-contact .channel--mail .channel__value {
  color: var(--mint);
}

.page-contact .channel--phone .channel__value {
  color: var(--amber);
  letter-spacing: 0.04em;
}

.page-contact .channel__value--addr {
  font-size: 15px;
  line-height: 1.7;
  color: var(--paper);
}

.page-contact .channel__plain {
  margin: 12px 0 0;
  padding-top: 12px;
  border-top: 1px dashed var(--line);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.page-contact .channel__note {
  margin: 14px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
}

/* ---------- 准备清单 ---------- */
.page-contact .check-grid {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--contact-gap);
  counter-reset: none;
}

.page-contact .check-card {
  position: relative;
  padding: calc(var(--contact-pad) * 0.8) calc(var(--contact-pad) * 0.8) calc(var(--contact-pad) * 0.9);
  background: var(--panel);
  border-bottom: 2px solid var(--line);
  transition: border-color 0.25s var(--ease), background 0.25s var(--ease);
}

.page-contact .check-card:hover {
  border-bottom-color: var(--mint);
  background: #152c46;
}

.page-contact .check-card__num {
  display: block;
  font-size: 26px;
  line-height: 1;
  letter-spacing: 0.06em;
  color: var(--sky);
}

.page-contact .check-card h3 {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-size: 17px;
  color: var(--paper);
}

.page-contact .check-card p {
  margin: 8px 0 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--muted);
}

/* ---------- 订阅处理路径 ---------- */
.page-contact .path-list {
  border-left: 1px solid var(--line);
  margin-left: 6px;
  padding-left: clamp(16px, 3vw, 28px);
}

.page-contact .path {
  position: relative;
  border-bottom: 1px solid var(--line);
}

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

.page-contact .path summary {
  list-style: none;
  cursor: pointer;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 12px;
  padding: 18px 0;
  transition: color 0.2s var(--ease);
}

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

.page-contact .path summary::marker {
  content: "";
}

.page-contact .path summary::after {
  content: "+";
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1;
  color: var(--muted);
  transition: color 0.2s var(--ease);
}

.page-contact .path[open] summary::after {
  content: "–";
  color: var(--mint);
}

.page-contact .path:hover summary::after {
  color: var(--mint);
}

.page-contact .path__num {
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--mint);
}

.page-contact .path__title {
  font-family: var(--font-display);
  font-size: clamp(16px, 2vw, 19px);
  color: var(--paper);
}

.page-contact .path__hint {
  grid-column: 2 / 3;
  font-size: 13px;
  color: var(--muted);
  padding-top: 2px;
}

.page-contact .path__body {
  padding: 0 0 20px 0;
}

.page-contact .path__body p {
  margin: 0;
  max-width: 68ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--body-text);
}

/* ---------- 纠错与合作 ---------- */
.page-contact .request-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--contact-gap);
}

.page-contact .request-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: var(--contact-pad);
  background: var(--ink-2);
  box-shadow: inset 0 0 0 1px var(--line);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--contact-cut)), calc(100% - var(--contact-cut)) 100%, 0 100%);
  transition: box-shadow 0.25s var(--ease);
}

.page-contact .request-card:hover {
  box-shadow: inset 0 0 0 1px var(--mint);
}

.page-contact .request-tag {
  margin: 0;
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--amber);
}

.page-contact .request-card h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 20px;
  color: var(--paper);
}

.page-contact .request-card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.78;
  color: var(--muted);
}

.page-contact .request-link {
  margin-top: auto;
  align-self: flex-start;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding-bottom: 3px;
  font-size: 14px;
  color: var(--mint);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  transition: border-color 0.2s var(--ease), color 0.2s var(--ease);
}

.page-contact .request-link:hover {
  border-bottom-color: var(--mint);
  color: var(--paper);
}

/* ---------- 时效与收尾 ---------- */
.page-contact .stat-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line);
  box-shadow: inset 0 0 0 1px var(--line);
}

.page-contact .stat-cell {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: clamp(18px, 2.6vw, 26px);
  background: var(--ink-2);
}

.page-contact .stat-cell__num {
  font-size: clamp(28px, 4vw, 40px);
  line-height: 1;
  color: var(--mint);
}

.page-contact .stat-cell__unit {
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--muted);
}

.page-contact .stat-cell__label {
  font-size: 13px;
  line-height: 1.7;
  color: var(--body-text);
}

.page-contact .night-fig {
  margin: clamp(20px, 3vw, 32px) 0 0;
  background: var(--ink-2);
  clip-path: polygon(0 0, 100% 0, 100% 100%, 30px 100%, 0 calc(100% - 30px));
  overflow: hidden;
}

.page-contact .night-fig img {
  display: block;
  width: 100%;
  height: auto;
  max-height: 420px;
  object-fit: cover;
}

.page-contact .night-fig figcaption {
  padding: 12px clamp(16px, 2.4vw, 22px) 16px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
  border-top: 1px solid var(--line);
}

.page-contact .closing-line {
  margin-top: clamp(22px, 3vw, 34px);
  display: grid;
  gap: 18px;
  align-items: center;
}

.page-contact .closing-line p {
  margin: 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--body-text);
}

.page-contact .closing-line__links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-contact .closing-line__links .btn {
  text-decoration: none;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-contact .check-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .page-contact .stat-row {
    grid-template-columns: repeat(2, 1fr);
  }

  .page-contact .closing-line {
    grid-template-columns: 1fr auto;
  }
}

@media (min-width: 900px) {
  .page-contact .contact-hero__grid {
    grid-template-columns: 1.02fr 0.98fr;
    gap: clamp(24px, 3.6vw, 48px);
  }

  .page-contact .channel-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .page-contact .channel--addr {
    grid-column: 1 / -1;
  }

  .page-contact .request-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 1080px) {
  .page-contact .channel-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .page-contact .channel--addr {
    grid-column: auto;
  }

  .page-contact .check-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .page-contact .stat-row {
    grid-template-columns: repeat(4, 1fr);
  }
}