.page-contact {
  --c-soft: rgba(234, 247, 243, 0.76);
  --c-hair: rgba(141, 184, 174, 0.26);
  --c-panel: linear-gradient(152deg, #0b3a32 0%, rgba(14, 75, 68, 0.78) 100%);
  position: relative;
  overflow-x: clip;
  padding-block: clamp(1.15rem, 3vw, 2rem) clamp(3rem, 7vw, 5.5rem);
  color: var(--paper);
  font-family: var(--font-body);
  background:
    radial-gradient(760px 480px at 94% -8%, rgba(61, 242, 208, 0.13), transparent 62%),
    radial-gradient(660px 460px at 0% 16%, rgba(43, 37, 84, 0.55), transparent 66%),
    var(--ink-900);
}

.page-contact .mono,
.page-contact .data-num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
}

/* breadcrumb */
.page-contact .breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.45rem;
  margin: 0 0 clamp(1.4rem, 3vw, 2.4rem);
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.08em;
  color: var(--mist);
}
.page-contact .breadcrumb-item {
  display: inline-flex;
  align-items: center;
}
.page-contact .breadcrumb-item + .breadcrumb-item::before {
  content: "/";
  margin-right: 0.45rem;
  color: rgba(61, 242, 208, 0.55);
}
.page-contact .breadcrumb-link {
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease);
}
.page-contact .breadcrumb-link:hover,
.page-contact .breadcrumb-link:focus-visible {
  color: var(--cyan-500);
  border-bottom-color: currentColor;
}
.page-contact .breadcrumb-link[aria-current="page"] {
  color: var(--cyan-100);
}

/* shared bits */
.page-contact .eyebrow {
  margin: 0 0 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--amber-400);
}
.page-contact .section {
  margin-top: clamp(3rem, 7vw, 5.5rem);
}
.page-contact .section-title {
  margin: 0 0 0.7rem;
  font-family: var(--font-display);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.16;
  font-size: clamp(1.5rem, 3.6vw, 2.25rem);
}
.page-contact .section-lede {
  max-width: 58ch;
  margin: 0 0 clamp(1.4rem, 3vw, 2.2rem);
  color: var(--c-soft);
  line-height: 1.75;
}
.page-contact .inline-link {
  color: var(--cyan-500);
  text-decoration: none;
  border-bottom: 1px solid rgba(61, 242, 208, 0.45);
}
.page-contact .inline-link:hover,
.page-contact .inline-link:focus-visible {
  color: var(--cyan-100);
  border-bottom-color: var(--cyan-100);
}

/* hero */
.page-contact .contact-hero {
  display: grid;
  gap: clamp(1.6rem, 4vw, 2.8rem);
  align-items: center;
}
.page-contact h1 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  letter-spacing: -0.03em;
  line-height: 1.1;
  font-size: clamp(2rem, 6vw, 3.4rem);
}
.page-contact h1 .hl {
  color: var(--cyan-500);
  display: inline-block;
}
.page-contact .hero-lede {
  max-width: 34em;
  margin: clamp(1rem, 2vw, 1.35rem) 0 0;
  font-size: clamp(0.98rem, 1.6vw, 1.1rem);
  line-height: 1.78;
  color: var(--c-soft);
}
.page-contact .hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-top: clamp(1.2rem, 2.6vw, 1.8rem);
}
.page-contact .hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem 1.6rem;
  margin: clamp(1.4rem, 3vw, 2rem) 0 0;
  padding: clamp(0.9rem, 2vw, 1.15rem) 0 0;
  list-style: none;
  border-top: 1px solid var(--c-hair);
  font-size: 0.82rem;
  color: var(--mist);
}
.page-contact .hero-meta .data-num {
  color: var(--cyan-100);
  margin-right: 0.35rem;
}
.page-contact .media-frame {
  margin: 0;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  background: var(--c-panel);
  overflow: hidden;
  box-shadow: var(--shadow-panel);
}
.page-contact .media-frame img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}
.page-contact .hero-media {
  position: relative;
}
.page-contact .hero-media::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 3px;
  background: linear-gradient(90deg, var(--cyan-500), var(--amber-400));
  opacity: 0.85;
}
.page-contact .hero-media img {
  aspect-ratio: 3 / 2;
}

/* 问题分类 tabs */
.page-contact .route-switch {
  position: relative;
}
.page-contact .route-radio {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}
.page-contact .route-tablist {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0.6rem;
  margin-bottom: 1.1rem;
}
.page-contact .route-tab {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  padding: 0.95rem 1.05rem;
  border: 1px solid var(--c-hair);
  border-radius: var(--radius-md);
  background: rgba(11, 58, 50, 0.62);
  cursor: pointer;
  transition: border-color 0.18s var(--ease), background 0.18s var(--ease), transform 0.18s var(--ease);
}
.page-contact .route-tab:hover {
  border-color: rgba(61, 242, 208, 0.5);
  transform: translateY(-2px);
}
.page-contact .route-idx {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  color: var(--amber-400);
}
.page-contact .route-name {
  font-weight: 700;
  font-size: 1rem;
  color: var(--paper);
}
.page-contact .route-hint {
  font-size: 0.78rem;
  line-height: 1.5;
  color: var(--mist);
}
.page-contact .route-tab:focus-within {
  outline: 2px solid var(--cyan-500);
  outline-offset: 2px;
}
.page-contact #route-login:checked ~ .route-tablist label[for="route-login"],
.page-contact #route-schedule:checked ~ .route-tablist label[for="route-schedule"],
.page-contact #route-feedback:checked ~ .route-tablist label[for="route-feedback"],
.page-contact #route-version:checked ~ .route-tablist label[for="route-version"] {
  border-color: var(--cyan-500);
  background: linear-gradient(150deg, rgba(61, 242, 208, 0.18), rgba(14, 75, 68, 0.9));
}
.page-contact #route-login:checked ~ .route-tablist label[for="route-login"] .route-name,
.page-contact #route-schedule:checked ~ .route-tablist label[for="route-schedule"] .route-name,
.page-contact #route-feedback:checked ~ .route-tablist label[for="route-feedback"] .route-name,
.page-contact #route-version:checked ~ .route-tablist label[for="route-version"] .route-name {
  color: var(--cyan-100);
}
.page-contact .route-panel {
  display: none;
  padding: clamp(1.25rem, 3vw, 1.9rem);
  border: 1px solid var(--line);
  border-left-width: 3px;
  border-left-color: var(--cyan-500);
  border-radius: var(--radius-md);
  background: var(--c-panel);
  animation: contact-fade 0.18s var(--ease) both;
}
.page-contact #route-login:checked ~ .route-panels > .route-panel:nth-child(1),
.page-contact #route-schedule:checked ~ .route-panels > .route-panel:nth-child(2),
.page-contact #route-feedback:checked ~ .route-panels > .route-panel:nth-child(3),
.page-contact #route-version:checked ~ .route-panels > .route-panel:nth-child(4) {
  display: block;
}
.page-contact .route-panel h3 {
  margin: 0 0 0.65rem;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.05rem, 2.4vw, 1.28rem);
  letter-spacing: -0.01em;
  color: var(--cyan-100);
}
.page-contact .route-panel p {
  margin: 0 0 0.9rem;
  line-height: 1.78;
  color: var(--c-soft);
  max-width: 62ch;
}
.page-contact .panel-list {
  display: grid;
  gap: 0.5rem;
  margin: 0 0 0.9rem;
  padding: 0;
  list-style: none;
}
.page-contact .panel-list li {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 0.7rem;
  padding: 0.55rem 0.75rem;
  border-radius: var(--radius-sm);
  background: rgba(6, 42, 36, 0.55);
  font-size: 0.9rem;
  line-height: 1.6;
  color: var(--c-soft);
}
.page-contact .panel-list .mono {
  flex: 0 0 auto;
  min-width: 3.4em;
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  color: var(--amber-400);
}
.page-contact .panel-foot {
  margin: 0;
  font-size: 0.86rem;
  color: var(--mist);
}
@keyframes contact-fade {
  from { opacity: 0; transform: translateX(-6px); }
  to { opacity: 1; transform: none; }
}

/* 联系渠道 */
.page-contact .channel-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(1.2rem, 3vw, 2rem);
}
.page-contact .channel-stack {
  display: grid;
  gap: 0.85rem;
}
.page-contact .channel-card {
  padding: clamp(1.1rem, 2.6vw, 1.6rem);
  border: 1px solid var(--c-hair);
  border-radius: var(--radius-md);
  background: rgba(11, 58, 50, 0.66);
}
.page-contact .channel-card--mail {
  border-top: 3px solid var(--cyan-500);
}
.page-contact .channel-card--tel {
  border-top: 3px solid var(--amber-400);
}
.page-contact .channel-card--addr {
  border-top: 3px solid var(--cyan-100);
}
.page-contact .channel-tag {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin: 0 0 0.55rem;
  font-size: 0.82rem;
  letter-spacing: 0.06em;
  color: var(--mist);
}
.page-contact .channel-tag .mono {
  color: var(--amber-400);
  font-size: 0.74rem;
}
.page-contact .channel-value {
  margin: 0 0 0.55rem;
  font-size: clamp(1rem, 3.2vw, 1.22rem);
  font-weight: 700;
  line-height: 1.4;
  color: var(--paper);
  word-break: break-word;
}
.page-contact .channel-value--text {
  font-family: var(--font-body);
  letter-spacing: 0;
}
.page-contact .channel-note {
  margin: 0;
  font-size: 0.88rem;
  line-height: 1.7;
  color: var(--c-soft);
}
.page-contact .copy-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.6rem 0.9rem;
  margin-top: 0.95rem;
}
.page-contact .copy-btn {
  padding: 0.5rem 1.05rem;
  border: 1px solid var(--cyan-500);
  border-radius: 999px;
  background: transparent;
  color: var(--cyan-500);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  cursor: pointer;
  transition: background 0.18s var(--ease), color 0.18s var(--ease);
}
.page-contact .copy-btn:hover,
.page-contact .copy-btn:focus-visible {
  background: var(--cyan-500);
  color: var(--ink-900);
}
.page-contact .copy-status {
  margin: 0;
  font-size: 0.78rem;
  color: var(--mist);
}
.page-contact .channel-side {
  display: grid;
  gap: 0.85rem;
  align-content: start;
}
.page-contact .index-visual img {
  aspect-ratio: 1 / 1;
}
.page-contact .side-note {
  padding: 1rem 1.15rem;
  border-radius: var(--radius-md);
  border: 1px dashed rgba(61, 242, 208, 0.35);
  background: rgba(43, 37, 84, 0.42);
}
.page-contact .side-note-title {
  margin: 0 0 0.4rem;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--amber-400);
}
.page-contact .side-note p:last-child {
  margin: 0;
  font-size: 0.88rem;
  line-height: 1.7;
  color: var(--c-soft);
}

/* 咨询前准备 */
.page-contact .prep-block {
  padding: clamp(1.4rem, 4vw, 2.6rem);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(159, 247, 231, 0.18);
  background: linear-gradient(140deg, var(--indigo-800) 0%, var(--ink-800) 72%);
}
.page-contact .prep-list {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0.65rem;
  margin: 0;
  padding: 0;
  list-style: none;
}
.page-contact .prep-item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 0.2rem 0.8rem;
  padding: 0.85rem 1rem;
  border-radius: var(--radius-sm);
  background: rgba(6, 42, 36, 0.55);
  border-left: 2px solid rgba(61, 242, 208, 0.45);
}
.page-contact .prep-idx {
  grid-row: span 2;
  align-self: start;
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  color: var(--amber-400);
}
.page-contact .prep-name {
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--cyan-100);
}
.page-contact .prep-desc {
  font-size: 0.86rem;
  line-height: 1.65;
  color: var(--c-soft);
}
.page-contact .prep-details {
  margin-top: clamp(1.1rem, 2.6vw, 1.6rem);
  padding-top: 0.9rem;
  border-top: 1px solid var(--c-hair);
}
.page-contact .prep-details summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.4rem 0;
  list-style: none;
  cursor: pointer;
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--cyan-100);
}
.page-contact .prep-details summary::-webkit-details-marker {
  display: none;
}
.page-contact .prep-details summary::after {
  content: "+";
  font-family: var(--font-mono);
  font-size: 1.1rem;
  color: var(--amber-400);
}
.page-contact .prep-details[open] summary::after {
  content: "–";
}
.page-contact .prep-details summary:focus-visible {
  outline: 2px solid var(--cyan-500);
  outline-offset: 2px;
}
.page-contact .prep-template {
  margin-top: 0.7rem;
  padding: 0.95rem 1.05rem;
  border-radius: var(--radius-sm);
  background: rgba(6, 42, 36, 0.6);
}
.page-contact .prep-template p {
  margin: 0 0 0.5rem;
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--c-soft);
}
.page-contact .prep-template .mono {
  display: inline-block;
  min-width: 3.6em;
  margin-right: 0.5rem;
  font-size: 0.74rem;
  letter-spacing: 0.1em;
  color: var(--amber-400);
}
.page-contact .prep-template-note {
  margin: 0;
  font-size: 0.82rem;
  color: var(--mist);
}

/* 其他事项 */
.page-contact .partner-block {
  padding: clamp(1.4rem, 4vw, 2.6rem);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(242, 184, 75, 0.28);
  background: linear-gradient(148deg, var(--wine-700) 0%, rgba(43, 37, 84, 0.92) 78%);
}
.page-contact .partner-block .section-lede {
  color: rgba(234, 247, 243, 0.82);
}
.page-contact .partner-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0.8rem;
}
.page-contact .partner-card {
  padding: 1.05rem 1.15rem;
  border-radius: var(--radius-md);
  background: rgba(6, 42, 36, 0.55);
  border: 1px solid rgba(234, 247, 243, 0.12);
}
.page-contact .partner-subject {
  margin: 0 0 0.55rem;
  font-size: 0.75rem;
  line-height: 1.6;
  letter-spacing: 0.04em;
  color: var(--amber-400);
  word-break: break-word;
}
.page-contact .partner-card h3 {
  margin: 0 0 0.45rem;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.02rem;
  color: var(--paper);
}
.page-contact .partner-card p:last-child {
  margin: 0;
  font-size: 0.88rem;
  line-height: 1.72;
  color: rgba(234, 247, 243, 0.8);
}

/* 相关入口 */
.page-contact .next-links {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0.7rem;
}
.page-contact .next-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.95rem 1.1rem;
  border: 1px solid var(--c-hair);
  border-radius: var(--radius-md);
  background: rgba(11, 58, 50, 0.5);
  color: var(--paper);
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 600;
  transition: border-color 0.18s var(--ease), background 0.18s var(--ease), transform 0.18s var(--ease);
}
.page-contact .next-link:hover,
.page-contact .next-link:focus-visible {
  border-color: var(--cyan-500);
  background: rgba(14, 75, 68, 0.78);
  transform: translateX(3px);
}
.page-contact .next-link .arrow {
  font-family: var(--font-mono);
  color: var(--cyan-500);
}

@media (min-width: 620px) {
  .page-contact .route-tablist {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-contact .prep-list,
  .page-contact .next-links {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-contact .contact-hero {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    gap: clamp(2rem, 4vw, 3.2rem);
  }
  .page-contact .route-tablist {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  .page-contact .channel-grid {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
    align-items: start;
  }
  .page-contact .prep-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-contact .partner-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-contact .next-links {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 1180px) {
  .page-contact .hero-lede {
    max-width: 32em;
  }
  .page-contact .section-lede {
    max-width: 64ch;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .route-tab,
  .page-contact .next-link,
  .page-contact .copy-btn,
  .page-contact .breadcrumb-link {
    transition: none;
  }
  .page-contact .route-panel {
    animation: none;
  }
  .page-contact .route-tab:hover,
  .page-contact .next-link:hover {
    transform: none;
  }
}