/* ===== 联系我们 · 页面专属样式 ===== */
.page-contact {
  --cut: 16px;
  --cut-path: polygon(0 0, 100% 0, 100% calc(100% - var(--cut)), calc(100% - var(--cut)) 100%, 0 100%);
  --contact-paper-ink: #3A3630;
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  padding: 26px 0 0;
}

.page-contact .contact-hero__grid {
  display: grid;
  gap: 26px;
  margin-top: 20px;
}

.page-contact .contact-hero__title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.95rem, 8.6vw, 3.5rem);
  line-height: 1.06;
  letter-spacing: -0.02em;
  color: var(--paper);
  margin: 14px 0 0;
}

.page-contact .contact-hero .lede {
  margin: 16px 0 0;
  max-width: 46ch;
  color: var(--silver);
  font-size: 1rem;
  line-height: 1.78;
}

.page-contact .contact-hero__panel {
  position: relative;
  align-self: start;
  padding: 20px 20px 26px;
  background: linear-gradient(158deg, var(--steel) 0%, var(--panel) 82%);
  border: 1px solid var(--line-strong);
  clip-path: var(--cut-path);
}

.page-contact .contact-hero__panel::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--lime) 0%, var(--orange) 100%);
}

.page-contact .contact-hero__stat {
  display: flex;
  align-items: baseline;
  gap: 8px;
  margin: 12px 0 6px;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(3rem, 15vw, 4.6rem);
  line-height: 0.96;
  letter-spacing: 0.02em;
  color: var(--lime);
}

.page-contact .contact-hero__unit {
  font-family: var(--font-body);
  font-size: 1rem;
  letter-spacing: 0.16em;
  color: var(--silver);
}

.page-contact .contact-hero__note {
  margin: 0 0 14px;
  font-size: 0.88rem;
  line-height: 1.7;
  color: var(--slate);
}

.page-contact .index-label--on-steel {
  color: var(--silver);
}

/* ---------- 小标题 ---------- */
.page-contact .contact-h2 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.45rem, 5.6vw, 2.15rem);
  line-height: 1.16;
  letter-spacing: -0.015em;
  color: var(--paper);
  margin: 12px 0 0;
}

.page-contact .section--paper .contact-h2 {
  color: var(--carbon);
}

/* ---------- 客服通道 ---------- */
.page-contact .contact-channels {
  padding-top: 48px;
}

.page-contact .contact-channels__head {
  display: grid;
  gap: 22px;
}

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

.page-contact .contact-channels__grid {
  display: grid;
  gap: 16px;
  margin-top: 26px;
}

.page-contact .contact-card {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 22px 20px 24px;
  background: var(--panel);
  border: 1px solid var(--line);
  clip-path: var(--cut-path);
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-contact .contact-card:hover {
  transform: translateY(-4px);
  border-color: rgba(182, 255, 60, 0.5);
}

.page-contact .contact-card--alt:hover {
  border-color: rgba(255, 106, 26, 0.5);
}

.page-contact .contact-card__label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--lime);
}

.page-contact .contact-card__label--orange {
  color: var(--orange);
}

.page-contact .contact-card__value {
  margin: 0;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(1.02rem, 4.4vw, 1.4rem);
  line-height: 1.32;
  letter-spacing: 0.01em;
  color: var(--paper);
  overflow-wrap: anywhere;
  word-break: break-word;
}

.page-contact .contact-card__value--tel {
  font-size: clamp(1.6rem, 8vw, 2.3rem);
  letter-spacing: 0.04em;
}

.page-contact .contact-card__desc {
  margin: 0;
  font-size: 0.93rem;
  line-height: 1.78;
  color: var(--silver);
}

.page-contact .contact-card__list {
  list-style: none;
  margin: 2px 0 0;
  padding: 0;
  display: grid;
  gap: 9px;
}

.page-contact .contact-card__list li {
  position: relative;
  padding-left: 18px;
  font-size: 0.9rem;
  line-height: 1.72;
  color: var(--slate);
}

.page-contact .contact-card__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 7px;
  height: 7px;
  background: var(--orange);
  transform: rotate(45deg);
}

.page-contact .contact-card--alt .contact-card__list li::before {
  background: var(--lime);
}

.page-contact .contact-card__hint {
  margin: 4px 0 0;
  padding-top: 12px;
  border-top: 1px solid var(--line);
  font-size: 0.86rem;
  line-height: 1.7;
  color: var(--slate);
}

/* ---------- 商务合作 ---------- */
.page-contact .contact-coop {
  padding-top: 54px;
}

.page-contact .contact-coop__intro p {
  margin: 14px 0 0;
  font-size: 0.95rem;
  line-height: 1.8;
  color: var(--silver);
  max-width: 44ch;
}

.page-contact .contact-coop__addr {
  font-family: var(--font-mono);
  font-size: 0.82rem !important;
  letter-spacing: 0.02em;
  color: var(--orange) !important;
  overflow-wrap: anywhere;
}

.page-contact .tabs {
  margin-top: 24px;
  min-width: 0;
}

.page-contact .tabs__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 14px;
}

.page-contact .tab {
  font-family: var(--font-body);
  font-size: 0.85rem;
  letter-spacing: 0.05em;
  padding: 9px 16px;
  color: var(--silver);
  background: transparent;
  border: 1px solid var(--line-strong);
  cursor: pointer;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 8px), calc(100% - 8px) 100%, 0 100%);
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-contact .tab:hover {
  border-color: var(--lime);
  color: var(--paper);
}

.page-contact .tab[aria-selected="true"] {
  background: var(--lime);
  border-color: var(--lime);
  color: var(--carbon);
  font-weight: 700;
}

.page-contact .tab:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: 2px;
}

.page-contact .tabpanel {
  padding: 20px 18px 24px;
  background: var(--steel);
  border: 1px solid var(--line-strong);
  border-left: 3px solid var(--lime);
  clip-path: var(--cut-path);
}

.page-contact .tabpanel h3 {
  margin: 0 0 10px;
  font-size: 1.06rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--paper);
}

.page-contact .tabpanel p {
  margin: 0 0 12px;
  font-size: 0.94rem;
  line-height: 1.8;
  color: var(--silver);
}

.page-contact .coop-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-contact .coop-list li {
  position: relative;
  padding-left: 20px;
  font-size: 0.87rem;
  line-height: 1.72;
  color: var(--slate);
}

.page-contact .coop-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 11px;
  height: 1px;
  background: var(--lime);
}

/* ---------- 到访 ---------- */
.page-contact .contact-visit {
  padding-top: 54px;
}

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

.page-contact .contact-visit__body {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.page-contact .contact-visit__addr {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 14px;
  margin-top: 6px;
  padding: 14px 16px;
  background: var(--steel);
  border-left: 3px solid var(--lime);
}

.page-contact .contact-visit__key {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--orange);
}

.page-contact .contact-visit__val {
  font-size: 1.02rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--paper);
}

.page-contact .contact-scale {
  height: 10px;
  background-image: repeating-linear-gradient(90deg, var(--line-strong) 0 1px, transparent 1px 13px);
  background-repeat: repeat-x;
  background-size: auto 8px;
  background-position: left top;
  opacity: 0.75;
}

.page-contact .contact-visit__body p {
  margin: 0;
  font-size: 0.94rem;
  line-height: 1.8;
  color: var(--silver);
}

.page-contact .visit-checklist {
  list-style: none;
  margin: 4px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-contact .visit-checklist li {
  display: flex;
  gap: 12px;
  font-size: 0.9rem;
  line-height: 1.74;
  color: var(--slate);
}

.page-contact .visit-checklist li::before {
  content: "";
  flex: 0 0 auto;
  width: 13px;
  height: 13px;
  margin-top: 4px;
  border: 1px solid var(--lime);
  background: rgba(182, 255, 60, 0.14);
}

/* ---------- 常见问题 ---------- */
.page-contact .contact-faq {
  padding-top: 48px;
}

.page-contact .index-label--on-paper {
  color: #6A6255;
}

.page-contact .contact-faq__grid {
  display: grid;
  gap: 12px;
  margin-top: 22px;
}

.page-contact .faq-item {
  background: rgba(20, 22, 26, 0.05);
  border: 1px solid rgba(20, 22, 26, 0.14);
  border-left: 3px solid var(--carbon);
}

.page-contact .faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 15px 18px;
  cursor: pointer;
  list-style: none;
  font-size: 0.98rem;
  font-weight: 700;
  line-height: 1.6;
  color: var(--carbon);
  transition: background var(--dur) var(--ease);
}

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

.page-contact .faq-item summary:hover {
  background: rgba(20, 22, 26, 0.06);
}

.page-contact .faq-item summary:focus-visible {
  outline: 2px solid var(--carbon);
  outline-offset: -2px;
}

.page-contact .faq-item summary::after {
  content: "+";
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 1.15rem;
  line-height: 1;
  color: #A8541A;
}

.page-contact .faq-item[open] summary::after {
  content: "–";
}

.page-contact .faq-item p {
  margin: 0;
  padding: 0 18px 18px;
  font-size: 0.93rem;
  line-height: 1.82;
  color: var(--contact-paper-ink);
}

/* ---------- 接着看 ---------- */
.page-contact .contact-next {
  padding-top: 44px;
}

.page-contact .contact-next p {
  margin: 14px 0 0;
  font-size: 0.94rem;
  line-height: 1.8;
  color: var(--silver);
  max-width: 44ch;
}

.page-contact .next-links {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-contact .next-links a {
  display: block;
  padding: 13px 16px;
  font-size: 0.92rem;
  color: var(--paper);
  text-decoration: none;
  background: var(--panel);
  border-left: 3px solid var(--line-strong);
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-contact .next-links a:hover {
  border-left-color: var(--lime);
  background: var(--steel);
  color: var(--lime);
}

.page-contact .next-links a:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: 2px;
}

/* ---------- 底部备案条 ---------- */
.page-contact .contact-baseline {
  margin-top: 40px;
  padding: 16px 0 30px;
  border-top: 1px solid var(--line);
}

.page-contact .contact-baseline .mono {
  font-size: 0.76rem;
  letter-spacing: 0.14em;
  color: var(--slate);
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-contact .contact-hero {
    padding-top: 34px;
  }

  .page-contact .contact-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
    gap: 44px;
  }

  .page-contact .contact-channels__head {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
    align-items: end;
    gap: 38px;
  }

  .page-contact .contact-channels__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 22px;
  }

  .page-contact .contact-faq__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
  }

  .page-contact .tabs {
    margin-top: 0;
  }

  .page-contact .next-links {
    margin-top: 0;
  }

  .page-contact .contact-next .grid--7-5 {
    align-items: start;
    gap: 44px;
  }
}

@media (min-width: 960px) {
  .page-contact .contact-hero {
    padding-top: 44px;
  }

  .page-contact .contact-channels {
    padding-top: 62px;
  }

  .page-contact .contact-coop {
    padding-top: 68px;
  }

  .page-contact .contact-visit {
    padding-top: 68px;
  }

  .page-contact .contact-faq {
    padding-top: 60px;
  }

  .page-contact .contact-visit .grid--7-5 {
    align-items: center;
    gap: 52px;
  }

  .page-contact .contact-coop .grid--5-7 {
    align-items: start;
    gap: 52px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .contact-card:hover,
  .page-contact .tab,
  .page-contact .faq-item summary,
  .page-contact .next-links a {
    transition: none;
  }

  .page-contact .contact-card:hover {
    transform: none;
  }
}