.page-contact .contact-hero {
  position: relative;
  padding: 44px 0 52px;
  background:
    radial-gradient(880px 440px at 84% -8%, rgba(47, 224, 198, .15), transparent 62%),
    radial-gradient(700px 400px at 4% 14%, rgba(91, 75, 224, .2), transparent 66%),
    var(--night-ink);
  border-bottom: 1px solid rgba(201, 210, 222, .14);
  overflow: hidden;
}

.page-contact .contact-hero h1 {
  font-family: var(--font-head);
  font-weight: 800;
  letter-spacing: -.02em;
  font-size: clamp(30px, 6.2vw, 58px);
  line-height: 1.08;
  color: #F4F7FC;
  margin: 12px 0 0;
  max-width: 17ch;
}

.page-contact .contact-hero .lede {
  margin: 18px 0 0;
  max-width: 62ch;
  font-size: 16.5px;
  line-height: 1.78;
  color: var(--silver-mist);
}

.page-contact h2 {
  font-family: var(--font-head);
  font-weight: 800;
  letter-spacing: -.02em;
  font-size: clamp(23px, 3.6vw, 35px);
  line-height: 1.16;
  margin: 10px 0 14px;
  color: #F2F5FA;
}

.page-contact .section-head {
  max-width: 72ch;
}

.page-contact .prose {
  color: var(--silver-mist);
}

.page-contact .section--paper h2 {
  color: var(--ink-on-paper);
}

.page-contact .section--paper .prose {
  color: var(--paper-text);
}

.page-contact .section--paper .eyebrow {
  color: var(--steel-gray);
}

.page-contact .eyebrow {
  color: var(--signal-amber);
}

/* ---------- 三联联系卡 ---------- */

.page-contact .contact-deck {
  position: relative;
  margin-top: 34px;
  padding: 18px;
  border: 1px solid var(--silver-mist);
  background: linear-gradient(158deg, rgba(34, 49, 95, .9), rgba(16, 26, 56, .96));
  overflow: hidden;
}

.page-contact .contact-deck__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .17;
  filter: grayscale(.4) contrast(1.12);
  pointer-events: none;
}

.page-contact .contact-cards {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.page-contact .ccard {
  display: flex;
  flex-direction: column;
  gap: 9px;
  padding: 20px 18px;
  background: var(--silver-paper);
  border: 1px solid var(--silver-mist);
  border-top: 2px solid var(--neon-cyan);
  box-shadow: 0 18px 34px rgba(0, 0, 0, .3);
  transition: transform .16s var(--ease), border-color .16s var(--ease);
}

.page-contact .ccard:hover {
  transform: translateY(-2px);
  border-color: var(--neon-cyan);
}

.page-contact .ccard__label {
  margin: 0;
  font-size: 11.5px;
  letter-spacing: .08em;
  color: var(--steel-gray);
}

.page-contact .ccard__value {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 600;
  line-height: 1.55;
  color: var(--ink-on-paper);
  word-break: break-word;
}

.page-contact .ccard__value--addr {
  font-size: 14px;
}

.page-contact .ccard__note {
  margin: 0;
  flex: 1 1 auto;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--paper-text);
}

.page-contact .copybtn {
  align-self: flex-start;
  margin-top: 4px;
  padding: 8px 14px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .07em;
  color: inherit;
  background: transparent;
  border: 1px solid currentColor;
  border-radius: 0;
  cursor: pointer;
  transition: background .16s var(--ease), color .16s var(--ease), border-color .16s var(--ease);
}

.page-contact .copybtn:hover {
  background: var(--neon-cyan);
  border-color: var(--neon-cyan);
  color: var(--night-ink);
}

.page-contact .copybtn[data-copied] {
  border-color: var(--arc-orange);
  color: var(--arc-orange);
}

.page-contact .deck-foot {
  margin: 16px 0 0;
  font-size: 12px;
  letter-spacing: .04em;
  line-height: 1.75;
  color: var(--steel-gray);
}

/* ---------- 方位信息图 ---------- */

.page-contact .map-figure {
  margin: 26px 0 0;
  padding: 12px;
  border: 1px solid rgba(201, 210, 222, .2);
  background: rgba(7, 11, 20, .55);
}

.page-contact .map-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-contact .map-figure figcaption {
  margin-top: 10px;
  font-size: 11.5px;
  letter-spacing: .06em;
  color: var(--steel-gray);
}

/* ---------- 项目对接流程 ---------- */

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

.page-contact .flow__item {
  margin: 0;
}

.page-contact .flow__step {
  position: relative;
  border: 1px solid rgba(201, 210, 222, .18);
  background: linear-gradient(140deg, rgba(34, 49, 95, .48), rgba(16, 26, 56, .72));
  transition: border-color .16s var(--ease);
}

.page-contact .flow__step::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: rgba(201, 210, 222, .3);
  transition: background .2s var(--ease);
}

.page-contact .flow__step[open]::before {
  background: var(--neon-cyan);
}

.page-contact .flow__step[open] {
  border-color: rgba(47, 224, 198, .38);
}

.page-contact .flow__step > summary {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 14px;
  padding: 15px 18px;
  cursor: pointer;
  list-style: none;
}

.page-contact .flow__step > summary::-webkit-details-marker {
  display: none;
}

.page-contact .flow__num {
  flex: 0 0 auto;
  font-size: 13px;
  letter-spacing: .1em;
  color: var(--signal-amber);
}

.page-contact .flow__title {
  flex: 1 1 auto;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 19px;
  letter-spacing: -.01em;
  color: #F2F5FA;
}

.page-contact .flow__time {
  flex: 0 0 auto;
  margin-left: auto;
  font-size: 11.5px;
  letter-spacing: .04em;
  color: var(--steel-gray);
}

.page-contact .flow__body {
  padding: 14px 18px 18px;
  border-top: 1px dashed rgba(201, 210, 222, .18);
}

.page-contact .flow__line {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 10px;
  margin: 0 0 9px;
  font-size: 15px;
  line-height: 1.74;
  color: var(--silver-mist);
}

.page-contact .flow__line:last-child {
  margin-bottom: 0;
}

.page-contact .flow__line .mono {
  flex: 0 0 auto;
  font-size: 11.5px;
  letter-spacing: .08em;
  color: var(--neon-cyan);
}

/* ---------- 材料清单 ---------- */

.page-contact .mat-layout {
  display: grid;
  gap: 28px;
}

.page-contact .mat-panel {
  padding: 16px;
  background: #fff;
  border: 1px solid rgba(12, 20, 36, .14);
  box-shadow: 0 22px 42px rgba(12, 20, 36, .1);
}

.page-contact .mat-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-contact .mat-list li {
  border-bottom: 1px dashed rgba(12, 20, 36, .13);
}

.page-contact .mat-list li:last-child {
  border-bottom: 0;
}

.page-contact .mat-list label {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 12px 4px;
  cursor: pointer;
  font-size: 15px;
  line-height: 1.65;
  color: var(--ink-on-paper);
}

.page-contact .mat-list input[type="checkbox"] {
  position: relative;
  flex: 0 0 16px;
  width: 16px;
  height: 16px;
  margin: 4px 0 0;
  appearance: none;
  -webkit-appearance: none;
  border: 1px solid rgba(12, 20, 36, .45);
  background: transparent;
  cursor: pointer;
}

.page-contact .mat-list input[type="checkbox"]:checked {
  background: var(--neon-cyan);
  border-color: var(--neon-cyan);
}

.page-contact .mat-list input[type="checkbox"]:checked::after {
  content: "";
  position: absolute;
  left: 4px;
  top: 1px;
  width: 5px;
  height: 9px;
  border: solid var(--night-ink);
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}

.page-contact .mat-panel__foot {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid rgba(12, 20, 36, .12);
}

.page-contact .mat-panel__foot .mono {
  margin: 0;
  font-size: 11.5px;
  letter-spacing: .05em;
  color: var(--steel-gray);
}

.page-contact .mat-panel .copybtn {
  color: var(--ink-on-paper);
}

/* ---------- 售后支持 ---------- */

.page-contact .support-grid {
  display: grid;
  gap: 14px;
  margin-top: 26px;
}

.page-contact .support-card {
  padding: 20px 18px;
  border: 1px solid rgba(201, 210, 222, .2);
  border-top: 2px solid var(--neon-cyan);
  background: linear-gradient(160deg, rgba(34, 49, 95, .42), rgba(16, 26, 56, .68));
}

.page-contact .support-card__k {
  margin: 0 0 10px;
  font-size: 11.5px;
  letter-spacing: .08em;
  color: var(--signal-amber);
}

.page-contact .support-card__v {
  margin: 0 0 12px;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 20px;
  line-height: 1.32;
  letter-spacing: -.01em;
  color: #F2F5FA;
}

.page-contact .support-card p:last-child {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.74;
  color: var(--silver-mist);
}

.page-contact .support-note {
  margin-top: 20px;
  padding: 20px 18px;
  border: 1px dashed rgba(47, 224, 198, .42);
  background: rgba(47, 224, 198, .05);
}

.page-contact .support-note .mono {
  margin: 0 0 8px;
  font-size: 11.5px;
  letter-spacing: .08em;
  color: var(--neon-cyan);
}

.page-contact .support-note p:last-child {
  margin: 0;
  max-width: 76ch;
  font-size: 15px;
  line-height: 1.78;
  color: var(--silver-mist);
}

/* ---------- 内容反馈 ---------- */

.page-contact .fb-layout {
  display: grid;
  gap: 28px;
}

.page-contact .fb-types {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: grid;
  gap: 9px;
}

.page-contact .fb-types li {
  position: relative;
  padding-left: 22px;
  font-size: 15px;
  line-height: 1.68;
  color: var(--silver-mist);
}

.page-contact .fb-types li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 12px;
  width: 10px;
  height: 1px;
  background: var(--signal-amber);
}

.page-contact .fb-template {
  padding: 20px 18px;
  background: var(--silver-paper);
  border: 1px solid var(--silver-mist);
  box-shadow: 0 20px 40px rgba(0, 0, 0, .26);
}

.page-contact .fb-template__k {
  margin: 0 0 12px;
  font-size: 11.5px;
  letter-spacing: .08em;
  color: var(--steel-gray);
}

.page-contact .fb-template__body {
  margin: 0 0 14px;
  padding: 14px;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.95;
  color: var(--ink-on-paper);
  white-space: pre-wrap;
  word-break: break-word;
  border: 1px dashed rgba(12, 20, 36, .22);
  background: rgba(255, 255, 255, .65);
}

.page-contact .fb-template__note {
  margin: 0 0 16px;
  font-size: 13.5px;
  line-height: 1.74;
  color: var(--paper-text);
}

.page-contact .fb-template .copybtn {
  color: var(--ink-on-paper);
}

.page-contact .fb-head .prose a,
.page-contact .fb-template__note a {
  color: var(--data-blue);
  text-decoration: none;
  border-bottom: 1px solid rgba(76, 125, 255, .45);
}

.page-contact .fb-head .prose a:hover,
.page-contact .fb-template__note a:hover {
  border-bottom-color: var(--data-blue);
}

/* ---------- 服务时间 ---------- */

.page-contact .time-grid {
  display: grid;
  gap: 14px;
  margin-top: 26px;
}

.page-contact .time-card {
  padding: 20px 18px;
  border: 1px solid rgba(201, 210, 222, .18);
  background: rgba(16, 26, 56, .52);
}

.page-contact .time-card__v {
  margin: 0 0 12px;
  padding-bottom: 12px;
  font-size: 13.5px;
  letter-spacing: .05em;
  color: var(--neon-cyan);
  border-bottom: 1px solid rgba(47, 224, 198, .24);
}

.page-contact .time-card p:last-child {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.76;
  color: var(--silver-mist);
}

.page-contact .time-foot {
  margin: 24px 0 0;
  padding: 18px;
  border-left: 3px solid var(--signal-amber);
  background: rgba(255, 194, 75, .06);
  font-size: 15px;
  line-height: 1.78;
  color: var(--silver-mist);
}

.page-contact .time-foot a {
  color: var(--neon-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(47, 224, 198, .5);
}

.page-contact .time-foot a:hover {
  border-bottom-color: var(--neon-cyan);
}

/* ---------- 响应式 ---------- */

@media (min-width: 640px) {
  .page-contact .contact-hero {
    padding: 58px 0 64px;
  }

  .page-contact .contact-deck {
    padding: 22px;
  }

  .page-contact .mat-panel {
    padding: 22px;
  }

  .page-contact .fb-template {
    padding: 24px 22px;
  }
}

@media (min-width: 820px) {
  .page-contact .contact-cards {
    grid-template-columns: repeat(3, 1fr);
    gap: 14px;
  }

  .page-contact .support-grid,
  .page-contact .time-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
  }
}

@media (min-width: 980px) {
  .page-contact .contact-hero {
    padding: 74px 0 78px;
  }

  .page-contact .contact-deck {
    margin-top: 42px;
    padding: 26px;
  }

  .page-contact .contact-cards {
    gap: 18px;
  }

  .page-contact .ccard {
    padding: 24px 22px;
  }

  .page-contact .flow__step > summary {
    padding: 18px 22px;
  }

  .page-contact .flow__body {
    padding: 16px 22px 22px;
  }

  .page-contact .flow__title {
    font-size: 21px;
  }

  .page-contact .mat-layout {
    grid-template-columns: .95fr 1.05fr;
    gap: 48px;
    align-items: start;
  }

  .page-contact .fb-layout {
    grid-template-columns: 1.05fr .95fr;
    gap: 48px;
    align-items: start;
  }

  .page-contact .map-figure {
    margin-top: 32px;
    padding: 16px;
  }
}

@media (min-width: 1180px) {
  .page-contact .contact-deck {
    padding: 30px;
  }

  .page-contact .ccard__value {
    font-size: 16px;
  }

  .page-contact .ccard__value--addr {
    font-size: 15px;
  }
}

@media (max-width: 520px) {
  .page-contact .flow__time {
    margin-left: 0;
    flex-basis: 100%;
  }

  .page-contact .flow__line {
    font-size: 14.5px;
  }

  .page-contact .ccard__value--addr {
    font-size: 13.5px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .ccard,
  .page-contact .copybtn,
  .page-contact .flow__step {
    transition: none;
  }

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