.page-contact {
  --pc-pad: clamp(20px, 4vw, 40px);
  --pc-gap: clamp(28px, 4vw, 56px);
  background: var(--void);
  color: var(--cream);
  padding-bottom: clamp(48px, 8vw, 96px);
  overflow-x: clip;
}

.page-contact :focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
  border-radius: 4px;
}

/* ---------- 首屏 ---------- */

.page-contact .contact-hero {
  padding-block: clamp(24px, 4.5vw, 52px) clamp(24px, 4vw, 40px);
  border-bottom: 1px solid var(--line);
}

.page-contact .breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: clamp(20px, 3.5vw, 34px);
  font-size: var(--f12);
  letter-spacing: 0.08em;
}

.page-contact .breadcrumbs__item {
  color: var(--muted);
  text-decoration: none;
  transition: color 200ms var(--ease);
}

.page-contact a.breadcrumbs__item:hover {
  color: var(--cyan);
}

.page-contact .breadcrumbs__item[aria-current="page"] {
  color: var(--cream);
}

.page-contact .breadcrumbs__sep {
  color: var(--line-strong);
}

.page-contact .eyebrow {
  font-size: var(--f12);
  letter-spacing: 0.22em;
  color: var(--violet);
}

.page-contact h1 {
  margin-top: 14px;
  font-family: var(--font-title);
  font-size: clamp(1.9rem, 5vw, 3.2rem);
  font-weight: 900;
  line-height: 1.14;
  letter-spacing: -0.02em;
  max-width: 22ch;
  text-wrap: balance;
}

.page-contact .lede {
  margin-top: clamp(16px, 2.4vw, 22px);
  max-width: 60ch;
  font-size: clamp(1rem, 1.6vw, 1.15rem);
  line-height: 1.8;
  color: rgba(244, 234, 214, 0.86);
}

.page-contact .contact-hero__facts {
  display: flex;
  flex-wrap: wrap;
  gap: clamp(20px, 4vw, 56px);
  margin-top: clamp(26px, 4vw, 40px);
  padding-top: clamp(20px, 3vw, 30px);
  border-top: 1px solid var(--line);
  list-style: none;
}

.page-contact .contact-hero__facts li {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.page-contact .contact-hero__facts .num {
  font-family: var(--font-data);
  font-size: clamp(1.05rem, 2.2vw, 1.35rem);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.02em;
  color: var(--cyan);
}

.page-contact .contact-hero__facts li span:last-child {
  font-size: var(--f13);
  color: var(--muted);
  letter-spacing: 0.04em;
}

/* ---------- 江苏服务带 ---------- */

.page-contact .province-band {
  position: relative;
  margin-top: clamp(36px, 5vw, 68px);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--panel);
  overflow: hidden;
}

.page-contact .province-band__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.34;
  pointer-events: none;
}

.page-contact .province-band::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    100deg,
    rgba(6, 6, 11, 0.96) 0%,
    rgba(6, 6, 11, 0.78) 48%,
    rgba(27, 23, 48, 0.92) 100%
  );
  pointer-events: none;
}

.page-contact .province-band__inner {
  position: relative;
  z-index: 1;
  display: flex;
  gap: clamp(18px, 3vw, 34px);
  align-items: flex-start;
  padding-block: clamp(34px, 6vw, 68px);
}

.page-contact .province-band__grid {
  flex: none;
  width: clamp(56px, 8vw, 96px);
  height: clamp(56px, 8vw, 96px);
  background-image: radial-gradient(var(--cyan) 1.4px, transparent 1.5px);
  background-size: 11px 11px;
  opacity: 0.5;
}

.page-contact .province-band__body {
  min-width: 0;
}

.page-contact .section-title {
  font-family: var(--font-title);
  font-weight: 800;
  font-size: clamp(1.25rem, 2.8vw, 1.75rem);
  line-height: 1.28;
  letter-spacing: -0.01em;
  color: var(--cream);
  margin-top: 10px;
  text-wrap: balance;
}

.page-contact .prose {
  margin-top: 14px;
  max-width: 66ch;
  font-size: var(--f15);
  line-height: 1.85;
  color: rgba(244, 234, 214, 0.82);
}

.page-contact .icp-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: clamp(20px, 3vw, 28px);
  padding: 0;
  list-style: none;
}

.page-contact .icp-row li {
  display: inline-flex;
  align-items: baseline;
  gap: 10px;
  padding: 9px 15px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: rgba(6, 6, 11, 0.6);
}

.page-contact .icp-row__k {
  font-size: var(--f12);
  letter-spacing: 0.14em;
  color: var(--muted);
}

.page-contact .icp-row__v {
  font-family: var(--font-data);
  font-size: var(--f13);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.06em;
  color: var(--cream);
  word-break: break-word;
}

/* ---------- 主分栏 ---------- */

.page-contact .contact-grid {
  display: grid;
  gap: var(--pc-gap);
  align-items: start;
  margin-top: clamp(36px, 5vw, 68px);
}

.page-contact .channel-col {
  display: grid;
  gap: 16px;
  min-width: 0;
}

.page-contact .guide-col {
  display: grid;
  gap: clamp(26px, 4vw, 44px);
  min-width: 0;
}

/* 左栏氛围图 */

.page-contact .channel-visual {
  position: relative;
  margin: 0 0 6px;
  border: 1px solid var(--line);
  border-radius: var(--r);
  overflow: hidden;
  background: var(--haze);
  box-shadow: var(--shadow-1);
}

.page-contact .channel-visual img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  filter: saturate(1.1);
}

.page-contact .channel-visual::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(6, 6, 11, 0.1) 40%, rgba(6, 6, 11, 0.92) 100%);
  pointer-events: none;
}

.page-contact .channel-visual__cap {
  position: absolute;
  z-index: 1;
  left: 16px;
  right: 16px;
  bottom: 14px;
  font-size: var(--f13);
  letter-spacing: 0.06em;
  color: var(--cream);
}

/* 通道卡 */

.page-contact .channel {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  padding: 18px 18px 16px;
  border: 1px solid var(--line);
  border-radius: var(--r);
  background: linear-gradient(165deg, rgba(27, 23, 48, 0.62) 0%, rgba(16, 16, 24, 0.94) 62%);
  box-shadow: var(--shadow-1);
  transition: transform 240ms var(--ease), border-color 240ms var(--ease);
}

.page-contact .channel:hover {
  transform: translateY(-2px);
  border-color: var(--line-strong);
}

.page-contact .channel__icon {
  flex: none;
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border-radius: 10px;
  border: 1px solid var(--line-strong);
}

.page-contact .channel--mail .channel__icon {
  color: var(--violet);
  background: var(--violet-soft);
}

.page-contact .channel--tel .channel__icon {
  color: var(--cyan);
  background: var(--cyan-soft);
}

.page-contact .channel--addr .channel__icon {
  color: var(--orange);
  background: var(--orange-soft);
}

.page-contact .channel__body {
  display: flex;
  flex-direction: column;
  gap: 7px;
  min-width: 0;
}

.page-contact .channel__use {
  font-size: var(--f12);
  letter-spacing: 0.16em;
  color: var(--muted);
}

.page-contact .channel__value {
  font-family: var(--font-data);
  font-size: var(--f15);
  line-height: 1.5;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.03em;
  color: var(--cream);
  word-break: break-word;
  overflow-wrap: anywhere;
}

.page-contact .channel__desc {
  font-size: var(--f13);
  line-height: 1.75;
  color: var(--muted);
}

.page-contact .channel__copy {
  align-self: flex-start;
  margin-top: 4px;
}

/* ---------- 分段切换 ---------- */

.page-contact .guide-block {
  padding: 0;
}

.page-contact .segmented {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: clamp(18px, 3vw, 26px);
  padding: 6px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(16, 16, 24, 0.72);
}

.page-contact .segmented__btn {
  flex: 1 1 auto;
  min-height: 40px;
  padding: 0 16px;
  border: 0;
  border-radius: 999px;
  background: transparent;
  color: var(--muted);
  font-family: var(--font-body);
  font-size: var(--f13);
  font-weight: 600;
  letter-spacing: 0.02em;
  cursor: pointer;
  transition: background 200ms var(--ease), color 200ms var(--ease);
}

.page-contact .segmented__btn:hover {
  color: var(--cream);
}

.page-contact .segmented__btn[aria-selected="true"] {
  background: var(--violet);
  color: var(--cream);
}

.page-contact .segmented__panel {
  margin-top: 14px;
  padding: clamp(18px, 3vw, 26px);
  border: 1px solid var(--line);
  border-radius: var(--r);
  background: var(--panel);
  box-shadow: var(--shadow-1);
}

.page-contact .segmented__panel[hidden] {
  display: none;
}

.page-contact .panel-lead {
  font-size: var(--f15);
  line-height: 1.85;
  color: rgba(244, 234, 214, 0.86);
}

.page-contact .checklist {
  display: grid;
  gap: 9px;
  margin-top: 16px;
  padding: 0;
  list-style: none;
}

.page-contact .checklist li {
  position: relative;
  padding-left: 20px;
  font-size: var(--f15);
  line-height: 1.7;
  color: var(--cream);
}

.page-contact .checklist li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 9px;
  height: 1px;
  background: var(--cyan);
}

.page-contact .panel-note {
  margin-top: 18px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  font-size: var(--f13);
  line-height: 1.75;
  color: var(--muted);
}

.page-contact .panel-note .num {
  font-family: var(--font-data);
  font-variant-numeric: tabular-nums;
  color: var(--cyan);
}

.page-contact .segmented__panel a,
.page-contact .coop a {
  color: var(--cyan);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 4px;
}

.page-contact .segmented__panel a:hover,
.page-contact .coop a:hover {
  color: var(--cream);
}

/* ---------- 合作洽谈 ---------- */

.page-contact .coop {
  padding: clamp(20px, 3.4vw, 32px);
  border: 1px solid var(--line);
  border-left: 2px solid var(--orange);
  border-radius: var(--r);
  background: linear-gradient(150deg, rgba(255, 123, 46, 0.1) 0%, rgba(16, 16, 24, 0.94) 58%);
  box-shadow: var(--shadow-1);
}

.page-contact .coop p {
  margin-top: 16px;
  max-width: 68ch;
  font-size: var(--f15);
  line-height: 1.85;
  color: rgba(244, 234, 214, 0.84);
}

.page-contact .coop__foot {
  padding-top: 16px;
  border-top: 1px solid var(--line);
  font-size: var(--f13) !important;
  color: var(--muted) !important;
}

/* ---------- 常见沟通问题 ---------- */

.page-contact .faq-wrap {
  margin-top: clamp(48px, 7vw, 92px);
  padding-block: clamp(28px, 4vw, 44px) 0;
  border-top: 1px solid var(--line);
}

.page-contact .qa-list {
  display: grid;
  margin-top: clamp(18px, 3vw, 28px);
  border-top: 1px solid var(--line);
}

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

.page-contact .qa__q {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 4px;
  font-size: clamp(0.95rem, 1.7vw, 1.06rem);
  font-weight: 600;
  line-height: 1.5;
  color: var(--cream);
  cursor: pointer;
  list-style: none;
}

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

.page-contact .qa__q::after {
  content: "+";
  flex: none;
  font-family: var(--font-data);
  font-size: 1.25rem;
  line-height: 1;
  color: var(--violet);
  transition: transform 240ms var(--ease), color 200ms var(--ease);
}

.page-contact .qa[open] .qa__q::after {
  transform: rotate(45deg);
  color: var(--cyan);
}

.page-contact .qa__q:hover {
  color: var(--cyan);
}

.page-contact .qa__a {
  padding: 0 4px 20px;
  max-width: 68ch;
  font-size: var(--f15);
  line-height: 1.85;
  color: var(--muted);
}

/* ---------- 响应式 ---------- */

@media (min-width: 720px) {
  .page-contact .channel {
    padding: 20px 22px 18px;
  }
}

@media (min-width: 960px) {
  .page-contact .contact-grid {
    grid-template-columns: minmax(0, 0.86fr) minmax(0, 1.14fr);
  }

  .page-contact .channel-col {
    position: sticky;
    top: calc(var(--ticker-h) + 24px);
  }
}

@media (max-width: 719px) {
  .page-contact .province-band__grid {
    display: none;
  }

  .page-contact .icp-row li {
    width: 100%;
    justify-content: space-between;
  }

  .page-contact .contact-hero__facts {
    gap: 18px 32px;
  }

  .page-contact .segmented {
    border-radius: var(--r);
  }

  .page-contact .segmented__btn {
    flex: 1 1 100%;
    border-radius: 8px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .channel,
  .page-contact .segmented__btn,
  .page-contact .qa__q::after,
  .page-contact .breadcrumbs__item {
    transition: none;
  }

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