.page-contact {
  --contact-pad: 24px;
  --contact-hero-fade: linear-gradient(180deg, var(--cyan-08) 0%, transparent 62%);
  --contact-panel-shade: linear-gradient(158deg, var(--ink) 0%, var(--panel) 92%);
}

/* ---- 面包屑 ---- */
.page-contact .breadcrumbs {
  padding-top: 22px;
}

/* ---- 首屏 ---- */
.page-contact .contact-hero {
  position: relative;
  padding: 24px 0 56px;
  overflow: hidden;
  isolation: isolate;
}

.page-contact .contact-hero::before {
  content: "";
  position: absolute;
  inset: -10% -20% auto -20%;
  height: 78%;
  background: var(--contact-hero-fade);
  pointer-events: none;
  z-index: 0;
}

.page-contact .contact-hero::after {
  content: "";
  position: absolute;
  top: 18%;
  right: -6%;
  width: 62%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--cyan-32), transparent);
  transform: rotate(-18deg);
  transform-origin: right center;
  pointer-events: none;
  z-index: 0;
}

.page-contact .contact-hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 28px;
}

.page-contact .contact-hero__media {
  margin: 0;
  max-width: 100%;
}

.page-contact .contact-hero__body {
  max-width: 42ch;
}

.page-contact h1 {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(42px, 11vw, 84px);
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--white);
  margin: 14px 0 18px;
}

.page-contact .lede {
  font-size: 16px;
  line-height: 1.75;
  color: var(--silver);
}

/* ---- 联系渠道双栏卡 ---- */
.page-contact .channel-duo {
  display: grid;
  gap: 18px;
}

.page-contact .channel-card {
  position: relative;
  display: grid;
  gap: 14px;
  align-content: start;
  padding: 26px 22px;
  background: var(--panel);
}

.page-contact .channel-card--mail {
  background: var(--contact-panel-shade);
}

.page-contact .channel-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 3px;
  height: 46px;
  background: var(--cyan);
}

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

.page-contact .channel-card .copy-btn {
  justify-self: start;
}

.page-contact .channel-value {
  font-family: var(--font-mono);
  font-size: clamp(17px, 4.6vw, 22px);
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--white);
  overflow-wrap: anywhere;
}

.page-contact .channel-note {
  font-size: 14px;
  line-height: 1.72;
  color: var(--dim);
  margin: 0;
}

/* ---- 地址 ---- */
.page-contact .address-panel {
  position: relative;
  display: grid;
  gap: 10px;
  padding: 30px 24px;
  background: var(--ink);
}

.page-contact .address-panel::after {
  content: "";
  position: absolute;
  right: 22px;
  top: 22px;
  width: 42px;
  height: 42px;
  border-top: 2px solid var(--cyan-32);
  border-right: 2px solid var(--cyan-32);
  pointer-events: none;
}

.page-contact .address-line {
  font-family: var(--font-mono);
  font-size: 15px;
  line-height: 1.7;
  color: var(--white);
  overflow-wrap: anywhere;
  margin: 0;
}

.page-contact .address-line + .address-line {
  color: var(--cyan);
}

.page-contact .address-panel .copy-btn {
  justify-self: start;
  margin-top: 6px;
}

/* ---- 咨询范围 ---- */
.page-contact .scope-selector {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 26px;
}

.page-contact .scope-tag {
  font-family: var(--font-body);
  font-size: 13px;
  letter-spacing: 0.02em;
  color: var(--silver);
  padding: 8px 14px;
  background: transparent;
  border: 1px solid var(--line-2);
  cursor: pointer;
  clip-path: polygon(10px 0, 100% 0, 100% calc(100% - 10px), calc(100% - 10px) 100%, 0 100%, 0 10px);
  transition: background 0.18s ease, color 0.18s ease, border-color 0.18s ease;
}

.page-contact .scope-tag:hover,
.page-contact .scope-tag:focus-visible {
  background: var(--cyan-16);
  border-color: var(--cyan-32);
  color: var(--white);
  outline: none;
}

.page-contact .scope-tag.is-active {
  background: var(--cyan-16);
  border-color: var(--cyan);
  color: var(--white);
}

.page-contact .scope-layout {
  display: grid;
  gap: 32px;
}

.page-contact .scope-list {
  display: grid;
}

.page-contact .scope-item {
  display: grid;
  grid-template-columns: 40px 1fr;
  column-gap: 12px;
  row-gap: 4px;
  padding: 18px 0;
  border-top: 1px solid var(--line);
}

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

.page-contact .scope-num {
  grid-row: 1 / span 2;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--cyan);
  padding-top: 3px;
}

.page-contact .scope-item h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--white);
}

.page-contact .scope-item p {
  grid-column: 2;
  margin: 2px 0 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--dim);
}

.page-contact .scope-layout .media-frame {
  margin: 0;
}

/* ---- 流程与准备 ---- */
.page-contact .flow-grid {
  display: grid;
  gap: 40px;
}

.page-contact .flow-block {
  display: grid;
  gap: 14px;
  align-content: start;
}

.page-contact .flow-block .section-title {
  margin: 0;
}

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

.page-contact .flow-list li {
  position: relative;
  padding-left: 20px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--silver);
}

.page-contact .flow-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.78em;
  width: 9px;
  height: 2px;
  background: var(--cyan);
}

.page-contact .flow-list--check li::before {
  background: var(--gold);
}

.page-contact .flow-list .num {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--white);
  margin-right: 8px;
}

.page-contact .flow-block .muted {
  font-size: 14px;
  line-height: 1.72;
  color: var(--dim);
}

.page-contact .flow-block .muted a {
  color: var(--cyan);
}

.page-contact .flow-block .btn {
  justify-self: start;
  margin-top: 2px;
}

/* ---- 备案 ---- */
.page-contact .filing-panel {
  position: relative;
  display: grid;
  gap: 8px;
  padding: 26px 22px 28px;
  background: var(--panel);
}

.page-contact .filing-panel::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--cyan) 0%, transparent 70%);
}

.page-contact .filing-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--silver);
}

.page-contact .filing-value {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(17px, 4.4vw, 20px);
  letter-spacing: 0.04em;
  color: var(--white);
}

.page-contact .filing-note {
  margin: 0;
  font-size: 13px;
  line-height: 1.75;
  color: var(--dim);
}

/* ---- 响应式 ---- */
@media (min-width: 720px) {
  .page-contact .contact-hero {
    padding: 32px 0 72px;
  }

  .page-contact .channel-duo {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-contact .scope-layout {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    gap: 40px;
    align-items: start;
  }

  .page-contact .flow-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 48px;
  }
}

@media (min-width: 1024px) {
  .page-contact .contact-hero {
    padding: 44px 0 96px;
  }

  .page-contact .contact-hero__inner {
    grid-template-columns: 7fr 5fr;
    gap: 48px;
    align-items: center;
  }

  .page-contact .contact-hero__media {
    grid-column: 2;
    grid-row: 1;
  }

  .page-contact .contact-hero__body {
    grid-column: 1;
    grid-row: 1;
    max-width: none;
  }

  .page-contact .channel-card {
    padding: 32px 28px;
  }

  .page-contact .scope-item {
    grid-template-columns: 52px 1fr;
    padding: 22px 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .scope-tag {
    transition: none;
  }
}