.page-contact {
  background: var(--ink);
  color: var(--cream);
  overflow-x: clip;
}

.page-contact .section {
  padding: clamp(46px, 7vw, 84px) 0;
  border-bottom: 1px solid var(--line-soft);
}

.page-contact .section:last-of-type {
  border-bottom: 0;
}

.page-contact .section-head {
  position: relative;
}

.page-contact .section-num {
  color: var(--neon);
  letter-spacing: 0.14em;
  margin: 0 0 8px;
}

.page-contact .section-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  letter-spacing: -0.01em;
  font-size: clamp(22px, 3.4vw, 34px);
  line-height: 1.28;
  color: var(--cream);
}

.page-contact .section-band {
  display: block;
  height: 3px;
  width: var(--band-w, 50%);
  margin-top: 16px;
  background: linear-gradient(90deg, var(--neon), rgba(43, 227, 201, 0));
}

.page-contact .section-lede {
  margin: 22px 0 0;
  max-width: 62ch;
  color: var(--cream);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  padding: calc(var(--header-h) + 44px) 0 clamp(48px, 6vw, 72px);
  background:
    radial-gradient(110% 80% at 94% 2%, rgba(255, 138, 61, 0.16), transparent 58%),
    linear-gradient(155deg, rgba(43, 227, 201, 0.12), rgba(8, 32, 27, 0) 62%),
    var(--ink);
  border-bottom: 1px solid var(--line-soft);
  overflow: hidden;
}

.page-contact .contact-hero::after {
  content: "";
  position: absolute;
  top: -18%;
  right: -8%;
  width: 44%;
  height: 130%;
  background: linear-gradient(180deg, rgba(43, 227, 201, 0.14), rgba(43, 227, 201, 0));
  clip-path: polygon(24% 0, 100% 0, 76% 100%, 0 100%);
  pointer-events: none;
}

.page-contact .contact-hero > .shell {
  position: relative;
  z-index: 1;
}

.page-contact .breadcrumb {
  margin-bottom: 26px;
}

.page-contact .hero-grid {
  align-items: start;
  gap: 30px 34px;
}

.page-contact .contact-hero h1 {
  margin: 14px 0 0;
  max-width: 620px;
  font-family: var(--font-display);
  font-weight: 800;
  letter-spacing: -0.01em;
  font-size: clamp(30px, 5.2vw, 52px);
  line-height: 1.16;
  color: var(--cream);
}

.page-contact .contact-hero .lede {
  margin: 20px 0 0;
  max-width: 58ch;
  color: var(--mist);
  font-size: var(--s15);
  line-height: 1.8;
}

.page-contact .hero-facts {
  list-style: none;
  margin: 28px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-contact .hero-facts li {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding-left: 12px;
  border-left: 2px solid var(--line);
  font-size: var(--s13);
  color: var(--mist);
}

.page-contact .hero-facts .mono {
  color: var(--neon);
  font-size: var(--s15);
  white-space: nowrap;
}

.page-contact .contact-hero-media {
  aspect-ratio: 16 / 10;
  border: 1px solid var(--line);
  background: var(--ink-deep);
  overflow: hidden;
}

.page-contact .contact-hero-media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.9) brightness(0.82) contrast(1.05);
}

/* ---------- 渠道卡片 ---------- */
.page-contact .channel-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px;
  margin-top: 36px;
}

.page-contact .channel {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 30px 22px 24px;
  background: var(--rock);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 10px 10px 0 rgba(4, 18, 15, 0.5);
  transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}

.page-contact .channel:focus-visible {
  outline: 2px solid var(--neon);
  outline-offset: 3px;
}

.page-contact .channel-band {
  position: absolute;
  top: 0;
  left: 0;
  width: 44%;
  height: 4px;
  background: var(--neon);
}

.page-contact .channel--phone .channel-band {
  background: var(--orange);
}

.page-contact .channel--feed .channel-band {
  background: var(--clay);
}

.page-contact .channel-kicker {
  margin: 0;
  font-size: var(--s12);
  letter-spacing: 0.14em;
  color: var(--mist);
}

.page-contact .channel-title {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-size: var(--s24);
  font-weight: 800;
  color: var(--cream);
}

.page-contact .channel-value {
  margin: 12px 0 0;
  font-size: var(--s17);
  line-height: 1.5;
  word-break: break-word;
  color: var(--neon);
}

.page-contact .channel--phone .channel-value {
  color: var(--orange);
}

.page-contact .channel--feed .channel-value {
  font-size: var(--s15);
  letter-spacing: 0.04em;
  color: var(--clay);
}

.page-contact .channel-desc {
  margin: 14px 0 0;
  font-size: var(--s15);
  line-height: 1.75;
  color: var(--mist);
}

.page-contact .channel-more {
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px dashed var(--line-soft);
}

.page-contact .channel-more-title {
  margin: 0 0 10px;
  font-size: var(--s13);
  color: var(--cream);
}

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

.page-contact .channel-more li {
  position: relative;
  padding-left: 16px;
  font-size: var(--s13);
  line-height: 1.7;
  color: var(--mist);
}

.page-contact .channel-more li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.68em;
  width: 6px;
  height: 1px;
  background: var(--orange);
}

/* ---------- 响应节奏 ---------- */
.page-contact .contact-rhythm {
  background: var(--ink-deep);
}

.page-contact .rhythm-list {
  list-style: none;
  margin: 34px 0 0;
  padding: 0;
}

.page-contact .rhythm-item {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  padding: 24px 0;
  border-top: 1px solid var(--line-soft);
}

.page-contact .rhythm-item:last-child {
  border-bottom: 1px solid var(--line-soft);
}

.page-contact .rhythm-time {
  margin: 0;
  font-size: var(--s15);
  letter-spacing: 0.04em;
  color: var(--neon);
}

.page-contact .rhythm-body h3 {
  margin: 0;
  font-size: var(--s17);
  font-weight: 700;
  color: var(--cream);
}

.page-contact .rhythm-body p {
  margin: 8px 0 0;
  font-size: var(--s15);
  line-height: 1.78;
  color: var(--mist);
  max-width: 66ch;
}

/* ---------- 纠错提交 ---------- */
.page-contact .fix-grid {
  gap: 30px 34px;
  margin-top: 6px;
}

.page-contact .check-list {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-contact .check-list li {
  position: relative;
  padding-left: 32px;
  font-size: var(--s15);
  line-height: 1.72;
  color: var(--cream);
}

.page-contact .check-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 2px;
  width: 20px;
  height: 20px;
  display: grid;
  place-items: center;
  font-family: var(--font-mono);
  font-size: var(--s12);
  color: var(--ink);
  background: var(--neon);
  border-radius: var(--radius);
}

.page-contact .fix-note {
  position: relative;
  padding: 30px 22px 26px;
  border: 1px solid var(--line);
  background: rgba(44, 54, 52, 0.6);
}

.page-contact .fix-note h3 {
  margin: 6px 0 14px;
  font-size: var(--s20);
  font-weight: 800;
  color: var(--cream);
}

.page-contact .fix-note p {
  margin: 0 0 12px;
  font-size: var(--s15);
  line-height: 1.78;
  color: var(--mist);
}

.page-contact .fix-note-foot {
  margin: 0;
  padding-top: 14px;
  border-top: 1px dashed var(--line-soft);
  font-size: var(--s12);
  letter-spacing: 0.1em;
  color: var(--moss);
}

/* ---------- 合作共建 ---------- */
.page-contact .partner-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  margin-top: 34px;
}

.page-contact .partner-item {
  padding: 24px 20px;
  border: 1px solid var(--line-soft);
  border-left: 3px solid var(--moss);
  background: linear-gradient(180deg, rgba(62, 107, 82, 0.16), rgba(62, 107, 82, 0));
}

.page-contact .partner-item h3 {
  margin: 14px 0 0;
  font-size: var(--s17);
  font-weight: 700;
  color: var(--cream);
}

.page-contact .partner-item p {
  margin: 8px 0 0;
  font-size: var(--s15);
  line-height: 1.76;
  color: var(--mist);
}

.page-contact .partner-cta {
  margin-top: 28px;
  padding: 22px 20px;
  border: 1px dashed var(--line);
  background: rgba(4, 18, 15, 0.6);
}

.page-contact .partner-cta p {
  margin: 0;
  font-size: var(--s15);
  line-height: 1.8;
  color: var(--mist);
}

.page-contact .partner-mail {
  color: var(--orange);
  word-break: break-word;
}

/* ---------- 通信地址 ---------- */
.page-contact .address-grid {
  gap: 30px 34px;
  margin-top: 6px;
}

.page-contact .address-list {
  margin: 26px 0 0;
  padding: 0;
}

.page-contact .address-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 4px;
  padding: 14px 0;
  border-top: 1px solid var(--line-soft);
}

.page-contact .address-row:last-child {
  border-bottom: 1px solid var(--line-soft);
}

.page-contact .address-row dt {
  font-size: var(--s12);
  letter-spacing: 0.12em;
  color: var(--mist);
}

.page-contact .address-row dd {
  margin: 0;
  font-size: var(--s15);
  line-height: 1.7;
  color: var(--cream);
}

.page-contact .address-row dd.mono {
  color: var(--orange);
  word-break: break-word;
}

.page-contact .address-tip {
  margin: 16px 0 0;
  font-size: var(--s13);
  line-height: 1.7;
  color: var(--mist);
}

.page-contact .contact-city-media {
  aspect-ratio: 3 / 2;
  border: 1px solid var(--line);
  overflow: hidden;
  background: var(--ink-deep);
}

.page-contact .contact-city-media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.85) brightness(0.78);
}

/* ---------- 帮助中心 ---------- */
.page-contact .help-grid {
  gap: 30px 34px;
  margin-top: 8px;
}

.page-contact .accordion-h {
  margin: 0;
}

.page-contact .accordion-item {
  border-top: 1px solid var(--line-soft);
}

.page-contact .accordion-item:last-child {
  border-bottom: 1px solid var(--line-soft);
}

.page-contact .accordion-trigger {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 14px;
  width: 100%;
  padding: 20px 0;
  background: transparent;
  border: 0;
  text-align: left;
  cursor: pointer;
  color: var(--cream);
  font-family: inherit;
  font-size: var(--s17);
  line-height: 1.6;
}

.page-contact .accordion-index {
  font-size: var(--s12);
  letter-spacing: 0.12em;
  color: var(--neon);
}

.page-contact .accordion-icon {
  position: relative;
  width: 18px;
  height: 18px;
  flex: none;
}

.page-contact .accordion-icon::before,
.page-contact .accordion-icon::after {
  content: "";
  position: absolute;
  background: var(--orange);
  transition: transform 0.25s ease;
}

.page-contact .accordion-icon::before {
  left: 0;
  top: 8px;
  width: 18px;
  height: 2px;
}

.page-contact .accordion-icon::after {
  left: 8px;
  top: 0;
  width: 2px;
  height: 18px;
}

.page-contact .accordion-trigger[aria-expanded="true"] .accordion-icon::after {
  transform: scaleY(0);
}

.page-contact .accordion-panel {
  overflow: hidden;
}

.page-contact .accordion-panel-inner {
  padding: 0 0 22px 32px;
}

.page-contact .accordion-panel-inner p {
  margin: 0;
  max-width: 62ch;
  font-size: var(--s15);
  line-height: 1.8;
  color: var(--mist);
}

.page-contact .help-aside {
  padding: 26px 22px;
  border: 1px solid var(--line);
  background: var(--rock);
  box-shadow: 10px 10px 0 rgba(4, 18, 15, 0.5);
}

.page-contact .help-aside-kicker {
  margin: 0;
  font-size: var(--s12);
  letter-spacing: 0.14em;
  color: var(--moss);
}

.page-contact .help-aside h3 {
  margin: 12px 0 0;
  font-size: var(--s24);
  font-weight: 800;
  color: var(--cream);
}

.page-contact .help-aside p {
  margin: 12px 0 20px;
  font-size: var(--s15);
  line-height: 1.78;
  color: var(--mist);
}

.page-contact .help-links {
  list-style: none;
  margin: 22px 0 0;
  padding: 18px 0 0;
  border-top: 1px dashed var(--line-soft);
  display: grid;
  gap: 10px;
}

.page-contact .help-links a {
  font-size: var(--s13);
}

/* ---------- 响应式 ---------- */
@media (max-width: 899px) {
  .page-contact .grid-12 {
    grid-template-columns: 1fr;
  }

  .page-contact .grid-12 > [class*="col-"] {
    grid-column: 1 / -1;
  }
}

@media (min-width: 720px) {
  .page-contact .rhythm-item {
    grid-template-columns: 190px 1fr;
    gap: 24px;
    align-items: start;
  }

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

  .page-contact .address-row {
    grid-template-columns: 120px 1fr;
    gap: 16px;
    align-items: baseline;
  }
}

@media (min-width: 900px) {
  .page-contact .channel-grid {
    grid-template-columns: repeat(3, 1fr);
    align-items: start;
  }

  .page-contact .channel:nth-child(2) {
    margin-top: 34px;
  }

  .page-contact .channel:nth-child(3) {
    margin-top: 68px;
  }

  .page-contact .channel:hover {
    transform: translateY(-4px);
    border-color: var(--neon);
    box-shadow: 10px 14px 0 rgba(4, 18, 15, 0.62);
  }

  .page-contact .channel--phone:hover {
    border-color: var(--orange);
  }

  .page-contact .channel--feed:hover {
    border-color: var(--clay);
  }

  .page-contact .channel-more {
    max-height: 0;
    margin-top: 0;
    padding-top: 0;
    opacity: 0;
    overflow: hidden;
    border-top-color: transparent;
    transition: max-height 0.36s ease, opacity 0.3s ease, margin-top 0.3s ease, padding-top 0.3s ease;
  }

  .page-contact .channel:hover .channel-more,
  .page-contact .channel:focus-within .channel-more {
    max-height: 300px;
    margin-top: 18px;
    padding-top: 16px;
    opacity: 1;
    border-top-color: var(--line-soft);
  }

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

  .page-contact .help-aside {
    position: sticky;
    top: calc(var(--header-h) + 24px);
  }
}

@media (min-width: 1180px) {
  .page-contact .contact-hero .lede {
    font-size: var(--s17);
  }

  .page-contact .service-note,
  .page-contact .lede.section-lede {
    font-size: var(--s17);
  }
}

.page-contact {
  --band-w: 1rem;
}