.page-contact {
  --pc-line: rgba(220, 230, 242, .16);
  --pc-line-strong: rgba(220, 230, 242, .34);
  background: var(--blue-deep);
  color: var(--white);
}

.page-contact h1,
.page-contact h2,
.page-contact h3 {
  margin: 0;
  font-family: var(--font-display);
  letter-spacing: -.012em;
  line-height: 1.14;
}

.page-contact h1 { font-size: clamp(30px, 6.2vw, 56px); font-weight: 800; }
.page-contact h2 { font-size: clamp(23px, 3.6vw, 34px); font-weight: 800; }
.page-contact h3 { font-size: clamp(17px, 2.1vw, 20px); font-weight: 700; }

.page-contact .pc-head { max-width: 60ch; }
.page-contact .pc-head h2 { margin-top: 14px; }

.page-contact .pc-lead {
  margin: 14px 0 0;
  max-width: 58ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--mist);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  overflow: hidden;
  padding: calc(var(--header-offset) + clamp(18px, 3vw, 36px)) 0 clamp(30px, 5vw, 62px);
  background:
    radial-gradient(120% 92% at 6% 0%, rgba(255, 45, 70, .18), transparent 58%),
    radial-gradient(82% 70% at 96% 4%, rgba(111, 227, 212, .13), transparent 56%),
    var(--blue-deep);
}

.page-contact .contact-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(42, 59, 102, .55) 1px, transparent 1px),
    linear-gradient(90deg, rgba(42, 59, 102, .55) 1px, transparent 1px);
  background-size: 68px 68px;
  -webkit-mask-image: linear-gradient(180deg, rgba(0, 0, 0, .85), transparent 78%);
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, .85), transparent 78%);
  pointer-events: none;
}

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

.page-contact .breadcrumb-link { color: var(--cyan); }

.page-contact .hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 44px);
  align-items: end;
  padding-top: clamp(22px, 3vw, 34px);
}

@media (min-width: 940px) {
  .page-contact .hero-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    column-gap: clamp(32px, 5vw, 76px);
  }
}

.page-contact .hero-lead {
  margin: 18px 0 0;
  max-width: 52ch;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.85;
  color: var(--mist);
}

.page-contact .hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(22px, 3vw, 30px);
}

.page-contact .hero-facts {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--pc-line);
}

.page-contact .hero-facts li {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 14px 0;
  border-bottom: 1px solid var(--pc-line);
}

.page-contact .fact-num {
  min-width: 82px;
  font-family: var(--font-mono);
  font-size: 20px;
  letter-spacing: -.02em;
  color: var(--cyan);
}

.page-contact .fact-label {
  font-size: 14px;
  line-height: 1.6;
  color: var(--mist);
}

.page-contact .hero-band {
  position: relative;
  margin: clamp(26px, 4vw, 46px) 0 0;
  border: 1px solid var(--pc-line);
  overflow: hidden;
  aspect-ratio: 16 / 10;
}

.page-contact .hero-band img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

@media (min-width: 760px) {
  .page-contact .hero-band {
    aspect-ratio: 16 / 7;
    clip-path: polygon(0 0, 100% 0, 100% 100%, 0 91%);
  }
}

/* ---------- 双栏：步骤 / 渠道 ---------- */
.page-contact .contact-board {
  padding: clamp(38px, 6vw, 78px) 0 clamp(44px, 6vw, 88px);
  background: var(--blue-deep);
}

.page-contact .board-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  row-gap: clamp(38px, 5vw, 48px);
}

@media (min-width: 960px) {
  .page-contact .board-grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
    column-gap: clamp(36px, 4vw, 66px);
    row-gap: 0;
  }

  .page-contact .board-col--channels {
    border-left: 1px solid var(--pc-line);
    padding-left: clamp(28px, 3.4vw, 52px);
  }
}

.page-contact .step-list {
  list-style: none;
  margin: clamp(24px, 3vw, 34px) 0 0;
  padding: 0;
}

.page-contact .step {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  column-gap: 16px;
  padding: 20px 0;
  border-top: 1px solid var(--pc-line);
  transition: border-color 160ms var(--ease);
}

.page-contact .step:last-child { border-bottom: 1px solid var(--pc-line); }
.page-contact .step:hover { border-top-color: var(--red); }

.page-contact .step-num {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .12em;
  color: var(--red);
  padding-top: 5px;
}

.page-contact .step-title,
.page-contact .step-text { grid-column: 2; }

.page-contact .step-title { margin-bottom: 6px; }

.page-contact .step-text {
  font-size: 15px;
  line-height: 1.8;
  color: var(--mist);
}

.page-contact .board-figure {
  margin: clamp(26px, 3.4vw, 38px) 0 0;
}

.page-contact .board-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  border: 1px solid var(--pc-line);
}

.page-contact .board-figure figcaption {
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--mist);
  opacity: .8;
}

.page-contact .channel-list {
  display: grid;
  gap: 12px;
  margin-top: clamp(24px, 3vw, 34px);
}

.page-contact .channel-card {
  background: var(--blue-room);
  border: 1px solid var(--pc-line);
  border-left: 2px solid var(--grid-blue);
  padding: 16px 18px;
  transition: transform 160ms var(--ease), border-color 160ms var(--ease);
}

.page-contact .channel-card:hover {
  transform: translateY(-2px);
  border-color: var(--red);
  border-left-color: var(--red);
}

.page-contact .channel-value {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: clamp(15px, 2.1vw, 18px);
  line-height: 1.5;
  color: var(--white);
  word-break: break-word;
}

.page-contact .channel-note {
  margin-top: 8px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--mist);
}

.page-contact .hours {
  margin-top: 16px;
  padding: 16px 18px 18px;
  border: 1px solid var(--pc-line);
  background: rgba(11, 21, 51, .5);
}

.page-contact .hours-head {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.page-contact .hours-time {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--cyan);
}

.page-contact .hours-track {
  height: 8px;
  margin: 14px 0 8px;
  background:
    repeating-linear-gradient(90deg, rgba(11, 21, 51, .78) 0 1px, transparent 1px 12.5%),
    linear-gradient(90deg, var(--red-dark), var(--red) 34%, var(--cyan));
}

.page-contact .hours-scale {
  display: flex;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--mist);
  opacity: .8;
}

.page-contact .hours-note {
  margin-top: 12px;
  font-size: 13px;
  line-height: 1.75;
  color: var(--mist);
}

/* ---------- 常见反馈类型 ---------- */
.page-contact .contact-cases {
  background: var(--white);
  color: var(--ink);
  padding: clamp(40px, 6vw, 84px) 0;
}

.page-contact .contact-cases .eyebrow { color: var(--blue-deep); }
.page-contact .contact-cases h2 { color: var(--blue-deep); }

.page-contact .contact-cases .pc-lead {
  color: var(--ink);
  opacity: .78;
}

.page-contact .case-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
  margin-top: clamp(26px, 3.4vw, 40px);
}

@media (min-width: 740px) {
  .page-contact .case-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
  }
}

.page-contact .case {
  background: #fff;
  border: 1px solid var(--mist);
  border-left: 3px solid var(--red);
  padding: 18px 20px;
  transition: border-color 160ms var(--ease), transform 160ms var(--ease);
}

.page-contact .case:hover {
  transform: translateY(-2px);
  border-color: var(--red);
}

.page-contact .case[open] {
  border-color: var(--grid-blue);
  border-left-color: var(--red);
}

.page-contact .case-summary {
  display: flex;
  align-items: center;
  gap: 12px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 700;
  color: var(--blue-deep);
}

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

.page-contact .case-summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 18px;
  color: var(--red);
}

.page-contact .case[open] .case-summary::after { content: "−"; }

.page-contact .case-summary:focus-visible {
  outline: 2px solid var(--red);
  outline-offset: 3px;
}

.page-contact .case-body {
  margin-top: 14px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink);
}

.page-contact .case-body p { margin: 0; }

.page-contact .case-need-label {
  margin-top: 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--red-dark);
}

.page-contact .case-need {
  list-style: none;
  margin: 8px 0 0;
  padding: 0;
  display: grid;
  gap: 6px;
}

.page-contact .case-need li {
  position: relative;
  padding-left: 16px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink);
}

.page-contact .case-need li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .72em;
  width: 8px;
  height: 1px;
  background: var(--red);
}

/* ---------- 合作与媒体 ---------- */
.page-contact .contact-partners {
  padding: clamp(40px, 6vw, 82px) 0;
  background:
    linear-gradient(180deg, var(--blue-deep), var(--blue-deep) 62%, rgba(18, 34, 77, .6)),
    var(--blue-deep);
}

.page-contact .partner-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
  margin-top: clamp(26px, 3.4vw, 40px);
}

@media (min-width: 800px) {
  .page-contact .partner-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
  }
}

.page-contact .partner {
  background: var(--blue-room);
  border: 1px solid var(--pc-line);
  border-top: 2px solid var(--red);
  padding: 20px 20px 22px;
  transition: transform 160ms var(--ease), border-color 160ms var(--ease);
}

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

.page-contact .partner h3 {
  margin-top: 14px;
  color: var(--white);
}

.page-contact .partner-text {
  margin-top: 10px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--mist);
}

.page-contact .partner-foot {
  margin-top: clamp(22px, 3vw, 32px);
  padding-top: 18px;
  border-top: 1px solid var(--pc-line);
  font-size: 14px;
  line-height: 1.8;
  color: var(--mist);
}

/* ---------- 服务范围 ---------- */
.page-contact .contact-scope {
  padding: clamp(40px, 6vw, 84px) 0 clamp(46px, 6vw, 90px);
  background: var(--blue-room);
}

.page-contact .scope-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
  margin-top: clamp(24px, 3.2vw, 38px);
}

@media (min-width: 780px) {
  .page-contact .scope-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
  }
}

.page-contact .scope-col {
  padding: 22px 20px;
  border: 1px solid var(--pc-line);
  background: rgba(11, 21, 51, .42);
}

.page-contact .scope-col--yes { border-top: 2px solid var(--cyan); }
.page-contact .scope-col--need { border-top: 2px solid var(--amber); }

.page-contact .scope-col h3 { color: var(--white); }

.page-contact .scope-list {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-contact .scope-list li {
  position: relative;
  padding-left: 18px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--mist);
}

.page-contact .scope-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .78em;
  width: 8px;
  height: 8px;
  border: 1px solid var(--grid-blue);
  background: var(--blue-deep);
}

.page-contact .scope-col--yes .scope-list li::before { border-color: var(--cyan); }
.page-contact .scope-col--need .scope-list li::before { border-color: var(--amber); }

.page-contact .scope-foot {
  margin-top: clamp(22px, 3vw, 32px);
  max-width: 70ch;
  font-size: 14px;
  line-height: 1.85;
  color: var(--mist);
}

.page-contact .scope-link {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-contact .scope-link:hover { color: var(--white); }

@media (prefers-reduced-motion: reduce) {
  .page-contact .step,
  .page-contact .channel-card,
  .page-contact .case,
  .page-contact .partner {
    transition: none;
  }

  .page-contact .step:hover,
  .page-contact .channel-card:hover,
  .page-contact .case:hover,
  .page-contact .partner:hover {
    transform: none;
  }
}