.page-contact {
  --ct-band-pad: 52px;
}

/* ---------- 首屏 ---------- */
.page-contact .ct-hero {
  padding: 6px 0 0;
}
.page-contact .ct-hero .breadcrumb {
  margin-bottom: 24px;
}
.page-contact .ct-hero h1 {
  font-family: var(--font-head);
  font-size: clamp(30px, 6.8vw, 54px);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.012em;
  color: var(--ink);
  margin: 14px 0 18px;
  max-width: 20ch;
}
.page-contact .ct-hero .lede {
  max-width: var(--measure);
  color: var(--muted);
  font-size: clamp(16px, 4vw, 17px);
  line-height: 1.8;
  margin: 0;
}

/* ---------- 通用小节辅助 ---------- */
.page-contact .ct-sub {
  margin: 12px 0 0;
  max-width: 40em;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.75;
}
.page-contact .ct-note-line {
  margin: 28px 0 0;
  padding-left: 16px;
  border-left: 3px solid var(--amber);
  color: var(--text);
  font-size: 14.5px;
  line-height: 1.8;
}
.page-contact .ct-note-line a {
  color: var(--blue);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 四类入口卡 ---------- */
.page-contact .ct-entries {
  padding-top: 44px;
}
.page-contact .entry-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin-top: 30px;
}
.page-contact .entry-card {
  position: relative;
  display: flex;
  flex-direction: column;
  background: var(--paper);
  border: 1px solid var(--line-soft);
  padding: 34px 18px 20px;
  transition: box-shadow 0.24s ease, border-color 0.24s ease, background-color 0.24s ease;
}
.page-contact .entry-card::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 3px;
  background: var(--blue);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 0.24s ease;
}
.page-contact .entry-card:nth-child(1)::after { background: var(--amber); }
.page-contact .entry-card:nth-child(2)::after { background: var(--blue); }
.page-contact .entry-card:nth-child(3)::after { background: var(--teal); }
.page-contact .entry-card:nth-child(4)::after { background: var(--mist); }
.page-contact .entry-card:hover,
.page-contact .entry-card:focus-within {
  box-shadow: var(--shadow-card);
  border-color: var(--line);
}
.page-contact .entry-card:hover::after,
.page-contact .entry-card:focus-within::after {
  transform: scaleX(1);
}
.page-contact .ent-num {
  position: absolute;
  top: 0;
  left: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  background: var(--ink);
  color: #FFFFFF;
  padding: 5px 9px;
}
.page-contact .ent-title {
  font-family: var(--font-head);
  font-size: 20px;
  font-weight: 600;
  line-height: 1.3;
  color: var(--ink);
  margin: 0 0 10px;
}
.page-contact .ent-desc {
  margin: 0 0 16px;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--muted);
}
.page-contact .ent-link {
  margin-top: auto;
  align-self: flex-start;
  padding-bottom: 2px;
  font-size: 13px;
  font-weight: 500;
  color: var(--blue);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  transition: color 0.2s ease, border-color 0.2s ease;
}
.page-contact .ent-link::after {
  content: " →";
  font-family: var(--font-mono);
}
.page-contact .ent-link:hover,
.page-contact .ent-link:focus-visible {
  color: var(--ink);
  border-color: var(--amber);
}

/* 卡片一：编号步骤 */
.page-contact .ent-steps {
  list-style: none;
  margin: 0 0 18px;
  padding: 0;
}
.page-contact .ent-steps li {
  display: flex;
  align-items: flex-start;
  gap: 9px;
  padding: 7px 0;
  font-size: 13.5px;
  line-height: 1.5;
  color: var(--text);
  border-bottom: 1px dashed var(--line-soft);
}
.page-contact .ent-steps li:last-child { border-bottom: 0; }
.page-contact .step-idx {
  flex: 0 0 auto;
  width: 18px;
  height: 18px;
  line-height: 18px;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 11px;
  background: var(--grey);
  color: var(--blue);
}

/* 卡片二：要点列表 */
.page-contact .ent-list {
  list-style: none;
  margin: 0 0 18px;
  padding: 0;
}
.page-contact .ent-list li {
  position: relative;
  padding-left: 16px;
  margin-bottom: 9px;
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--text);
}
.page-contact .ent-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.68em;
  width: 7px;
  height: 2px;
  background: var(--amber);
}
.page-contact .ent-list .mono {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.02em;
  color: var(--blue);
}

/* 卡片三：档位对照 */
.page-contact .ent-tiers {
  margin: 0 0 18px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
}
.page-contact .ent-tiers > div {
  display: flex;
  align-items: baseline;
  gap: 6px;
  padding: 6px 8px;
  background: var(--grey);
}
.page-contact .ent-tiers dt {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--blue);
}
.page-contact .ent-tiers dd {
  margin: 0;
  font-size: 12.5px;
  color: var(--muted);
}

/* 卡片四：条件清单 */
.page-contact .ent-checks {
  list-style: none;
  margin: 0 0 18px;
  padding: 0;
}
.page-contact .ent-checks li {
  position: relative;
  padding-left: 20px;
  margin-bottom: 10px;
  font-size: 13.5px;
  line-height: 1.55;
  color: var(--text);
}
.page-contact .ent-checks li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 0;
  font-size: 13px;
  font-weight: 700;
  color: var(--teal);
}

/* ---------- 深色联系信息带 ---------- */
.page-contact .ct-contact-band {
  position: relative;
  overflow: hidden;
  margin-top: 56px;
  padding: var(--ct-band-pad) 0 calc(var(--ct-band-pad) - 6px);
  background: var(--ink);
  color: #E8EEF2;
}
.page-contact .ct-contact-band::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(127, 168, 191, 0.10) 1px, transparent 1px),
    linear-gradient(90deg, rgba(127, 168, 191, 0.10) 1px, transparent 1px);
  background-size: 46px 46px;
}
.page-contact .ct-contact-band .wrap {
  position: relative;
}
.page-contact .ct-contact-band .eyebrow {
  color: var(--amber-soft);
}
.page-contact .ct-contact-band .eyebrow::before {
  background: var(--amber);
}
.page-contact .cb-head h2 {
  font-family: var(--font-head);
  font-size: clamp(23px, 4.6vw, 34px);
  font-weight: 600;
  line-height: 1.2;
  color: #FFFFFF;
  margin: 12px 0 0;
}
.page-contact .cb-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2px;
  margin-top: 28px;
  background: rgba(127, 168, 191, 0.24);
  border: 1px solid rgba(127, 168, 191, 0.24);
}
.page-contact .cb-item {
  background: var(--steel);
  padding: 22px 20px;
}
.page-contact .cb-label {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.14em;
  color: var(--mist);
}
.page-contact .cb-value {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: clamp(18px, 3.8vw, 25px);
  line-height: 1.28;
  letter-spacing: 0.02em;
  color: #FFFFFF;
  word-break: break-word;
}
.page-contact .cb-text {
  margin: 0;
  font-size: 14px;
  line-height: 1.78;
  color: #C7D8E3;
}
.page-contact .copy-btn {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.08em;
  padding: 7px 13px;
  background: transparent;
  border: 1px solid rgba(127, 168, 191, 0.55);
  color: #D7E5EE;
  border-radius: var(--radius);
  cursor: pointer;
  transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}
.page-contact .copy-btn:hover,
.page-contact .copy-btn:focus-visible {
  background: var(--amber);
  border-color: var(--amber);
  color: var(--ink);
}
.page-contact .cb-note {
  margin: 18px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--mist);
}

/* ---------- 上门安装排期 ---------- */
.page-contact .ct-install {
  padding-top: 64px;
}
.page-contact .install-grid {
  row-gap: 40px;
}
.page-contact .flow-list {
  list-style: none;
  margin: 28px 0 0;
  padding: 0;
}
.page-contact .flow-item {
  display: grid;
  grid-template-columns: 36px 1fr;
  gap: 16px;
  padding-bottom: 24px;
  margin-bottom: 24px;
  border-bottom: 1px solid var(--line-soft);
}
.page-contact .flow-item:last-child {
  padding-bottom: 0;
  margin-bottom: 0;
  border-bottom: 0;
}
.page-contact .flow-idx {
  width: 36px;
  height: 36px;
  line-height: 36px;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.02em;
  background: var(--amber);
  color: var(--ink);
}
.page-contact .flow-item h3 {
  margin: 6px 0 8px;
  font-family: var(--font-head);
  font-size: 17px;
  font-weight: 600;
  color: var(--ink);
  line-height: 1.4;
}
.page-contact .flow-item p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--muted);
}
.page-contact .ct-figure {
  margin: 0;
}
.page-contact .ct-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- 区域合作 ---------- */
.page-contact .ct-channel {
  padding-top: 64px;
}
.page-contact .ct-channel-figure {
  margin: 0 0 34px;
}
.page-contact .ct-channel-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}
.page-contact .channel-grid {
  row-gap: 34px;
}
.page-contact .channel-intro .prose p {
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--text);
}
.page-contact .channel-intro .prose a {
  color: var(--blue);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.page-contact .support-list {
  list-style: none;
  margin: 0;
  padding: 0;
}
.page-contact .support-list li {
  position: relative;
  padding: 0 0 20px 22px;
  margin-bottom: 20px;
  border-bottom: 1px solid var(--line-soft);
}
.page-contact .support-list li:last-child {
  padding-bottom: 0;
  margin-bottom: 0;
  border-bottom: 0;
}
.page-contact .support-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 7px;
  width: 10px;
  height: 10px;
  background: var(--teal);
}
.page-contact .support-list h3 {
  margin: 0 0 8px;
  font-family: var(--font-head);
  font-size: 16.5px;
  font-weight: 600;
  color: var(--ink);
}
.page-contact .support-list p {
  margin: 0;
  font-size: 14px;
  line-height: 1.78;
  color: var(--muted);
}

/* ---------- 提前备好：时效表 ---------- */
.page-contact .ct-prepare {
  padding-top: 64px;
}
.page-contact .ct-table {
  width: 100%;
}
.page-contact .ct-table-caption {
  caption-side: top;
  text-align: left;
  padding: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.08em;
  color: var(--mist);
}
.page-contact .ct-table th[scope="row"] {
  font-family: var(--font-head);
  font-size: 15.5px;
  font-weight: 600;
  color: var(--ink);
  white-space: nowrap;
}
.page-contact .ct-table td {
  transition: background-color 0.2s ease;
}
.page-contact .ct-eta {
  display: block;
  font-size: 14.5px;
  font-weight: 500;
  color: var(--blue);
  margin-bottom: 6px;
}
.page-contact .ct-need {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.02em;
  line-height: 1.7;
  color: var(--muted);
  transition: color 0.2s ease;
}
.page-contact .ct-table tbody tr:hover td,
.page-contact .ct-table tbody tr:hover th[scope="row"] {
  background: rgba(255, 138, 30, 0.12);
}
.page-contact .ct-table tbody tr:hover .ct-need {
  color: var(--ink);
}
.page-contact .ct-help-line {
  margin: 24px 0 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--muted);
}
.page-contact .ct-help-line a {
  color: var(--blue);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 需求表单 ---------- */
.page-contact .ct-form-section {
  margin-top: 72px;
  padding: 56px 0 110px;
  background: var(--grey);
}
.page-contact .ct-form {
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px;
  margin-top: 30px;
  padding: 26px 20px 24px;
  background: var(--paper);
  border: 1px solid var(--line-soft);
  border-left: 4px solid var(--amber);
}
.page-contact .ct-fieldset {
  margin: 0;
  padding: 0;
  border: 0;
  min-width: 0;
}
.page-contact .ct-field {
  min-width: 0;
}
.page-contact .ct-legend,
.page-contact .ct-label {
  display: block;
  margin-bottom: 10px;
  font-family: var(--font-head);
  font-size: 14px;
  font-weight: 600;
  color: var(--ink);
  letter-spacing: 0.01em;
}
.page-contact .ct-legend {
  padding: 0;
}
.page-contact .ct-req {
  margin-left: 7px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  font-weight: 400;
  letter-spacing: 0.1em;
  color: var(--note);
}
.page-contact .ct-radios {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
}
.page-contact .ct-radio {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 11px 13px;
  background: #FFFFFF;
  border: 1px solid var(--line);
  font-size: 14px;
  color: var(--text);
  cursor: pointer;
  transition: border-color 0.2s ease, background-color 0.2s ease;
}
.page-contact .ct-radio:hover {
  border-color: var(--blue);
}
.page-contact .ct-radio input {
  width: 15px;
  height: 15px;
  margin: 0;
  accent-color: var(--amber);
  flex: 0 0 auto;
}
.page-contact .ct-radio input:checked + span {
  color: var(--ink);
  font-weight: 500;
}
.page-contact .ct-input,
.page-contact .ct-textarea {
  display: block;
  width: 100%;
  padding: 11px 13px;
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.6;
  color: var(--text);
  background: #FFFFFF;
  border: 1px solid var(--steel);
  border-radius: var(--radius);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.page-contact .ct-input.mono {
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: 0.02em;
}
.page-contact .ct-textarea {
  resize: vertical;
  min-height: 118px;
}
.page-contact .ct-input::placeholder,
.page-contact .ct-textarea::placeholder {
  color: #9FB2BF;
}
.page-contact .ct-input:focus,
.page-contact .ct-textarea:focus {
  outline: none;
  border-color: var(--amber);
  box-shadow: 0 0 0 3px rgba(255, 138, 30, 0.18);
}
.page-contact .ct-error {
  position: relative;
  margin: 8px 0 0;
  padding-left: 15px;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--note);
}
.page-contact .ct-error::before {
  content: "!";
  position: absolute;
  left: 0;
  font-family: var(--font-mono);
  font-weight: 700;
}
.page-contact .ct-error[hidden] {
  display: none;
}
.page-contact .ct-form-foot {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
  padding-top: 20px;
  border-top: 1px solid var(--line-soft);
}
.page-contact .ct-submit {
  flex: 0 0 auto;
}
.page-contact .ct-form-note {
  flex: 1 1 260px;
  margin: 0;
  font-size: 12.5px;
  line-height: 1.75;
  color: var(--muted);
}
.page-contact .ct-form-note a {
  color: var(--blue);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-contact .entry-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }
  .page-contact .ct-radios {
    grid-template-columns: repeat(2, 1fr);
  }
  .page-contact .ct-contact-band {
    --ct-band-pad: 60px;
  }
}

@media (min-width: 760px) {
  .page-contact .cb-grid {
    grid-template-columns: 1fr 1fr;
  }
  .page-contact .ct-form {
    padding: 32px 32px 30px;
  }
}

@media (min-width: 1060px) {
  .page-contact .entry-grid {
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
  }
  .page-contact .entry-card {
    padding: 36px 18px 20px;
  }
  .page-contact .ct-contact-band {
    --ct-band-pad: 68px;
  }
  .page-contact .ct-form {
    grid-template-columns: 1fr 1fr;
    gap: 24px 30px;
  }
  .page-contact .ct-field-full {
    grid-column: 1 / -1;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .entry-card,
  .page-contact .entry-card::after,
  .page-contact .ent-link,
  .page-contact .copy-btn,
  .page-contact .ct-radio,
  .page-contact .ct-input,
  .page-contact .ct-textarea,
  .page-contact .ct-table td,
  .page-contact .ct-need {
    transition: none;
  }
  .page-contact .entry-card:hover::after,
  .page-contact .entry-card:focus-within::after {
    transform: none;
  }
}
</main>