.page-contact {
  background: var(--c-purple);
  color: var(--c-paper);
  overflow-x: clip;
}

/* ---------------- 首屏 ---------------- */
.page-contact .contact-hero {
  position: relative;
  padding: 30px 0 52px;
  isolation: isolate;
}

.page-contact .contact-hero__bg {
  position: absolute;
  inset: 0;
  z-index: -1;
  overflow: hidden;
}

.page-contact .contact-hero__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .42;
  filter: saturate(.72);
}

.page-contact .contact-hero__bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(120% 82% at 78% 6%, rgba(74, 43, 122, .62), transparent 62%),
    linear-gradient(180deg, rgba(20, 4, 31, .76) 0%, rgba(43, 11, 69, .88) 50%, var(--c-purple) 100%);
}

.page-contact .contact-hero__inner {
  position: relative;
}

.page-contact .contact-hero__inner .breadcrumb {
  margin: 0 0 22px;
}

.page-contact .contact-hero__eyebrow {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .24em;
  color: var(--c-gold);
}

.page-contact .contact-hero__title {
  margin: 0 0 20px;
  max-width: 16ch;
  font-family: var(--font-sans);
  font-size: clamp(34px, 6.6vw, 74px);
  font-weight: 800;
  line-height: 1.06;
  letter-spacing: -.02em;
  color: var(--c-paper);
}

.page-contact .contact-hero__lede {
  margin: 0 0 22px;
  max-width: 58ch;
  font-size: clamp(15px, 1.7vw, 17.5px);
  line-height: 1.82;
  color: rgba(245, 241, 232, .82);
}

.page-contact .contact-hero__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 8px;
  padding: 0;
  list-style: none;
}

.page-contact .contact-hero__tags li {
  padding: 5px 13px;
  border: 1px solid var(--edge);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .12em;
  color: var(--c-mist);
}

/* ---------------- 通道示意图 ---------------- */
.page-contact .route-map {
  display: block;
  width: 100%;
  max-width: 880px;
  height: auto;
  margin: 34px auto 0;
}

.page-contact .route-map__ticks line {
  stroke: var(--edge-soft);
  stroke-width: 1;
  stroke-dasharray: 3 8;
}

.page-contact .route-map__path {
  fill: none;
  stroke-width: 2;
  stroke-linecap: round;
}

.page-contact .route-map__path--mail { stroke: var(--c-gold); }
.page-contact .route-map__path--tel { stroke: var(--c-green); stroke-dasharray: 9 7; }
.page-contact .route-map__path--addr { stroke: var(--c-mist); }

.page-contact .route-map__node {
  stroke: var(--c-purple);
  stroke-width: 3;
}

.page-contact .route-map__node--mail { fill: var(--c-gold); }
.page-contact .route-map__node--tel { fill: var(--c-green); }
.page-contact .route-map__node--addr { fill: var(--c-mist); }

.page-contact .route-map__origin { fill: var(--c-gold-bright); }

.page-contact .route-map__origin-ring {
  fill: none;
  stroke: var(--c-gold);
  stroke-width: 1.5;
  opacity: .55;
}

.page-contact .route-map__label {
  font-family: var(--font-mono);
  font-size: 25px;
  letter-spacing: .05em;
  fill: var(--c-paper);
}

.page-contact .route-map__o-label {
  font-family: var(--font-mono);
  font-size: 25px;
  letter-spacing: .05em;
  fill: var(--c-gold);
}

/* ---------------- 通用区块 ---------------- */
.page-contact .contact-block {
  position: relative;
  padding: 54px 0;
}

.page-contact .contact-block--topics {
  background: var(--c-purple);
}

.page-contact .contact-block--partners {
  background: linear-gradient(180deg, rgba(74, 43, 122, .2), rgba(20, 4, 31, .28));
}

.page-contact .contact-block--response {
  padding-bottom: 96px;
  background: linear-gradient(180deg, transparent 48%, rgba(20, 4, 31, .9) 100%);
}

.page-contact .block-head {
  display: grid;
  gap: 12px;
  margin-bottom: 32px;
}

.page-contact .block-num {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .28em;
  color: var(--c-gold);
}

.page-contact .block-title {
  margin: 0;
  font-size: clamp(23px, 3.6vw, 40px);
  font-weight: 800;
  line-height: 1.16;
  letter-spacing: -.01em;
  color: var(--c-paper);
}

.page-contact .block-sub {
  margin: 0;
  max-width: 56ch;
  font-size: 15.5px;
  line-height: 1.82;
  color: var(--c-mist);
}

/* ---------------- 三条通道卡片 ---------------- */
.page-contact .channel-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
}

.page-contact .channel {
  position: relative;
  padding: 26px 22px 26px;
  background: linear-gradient(160deg, rgba(74, 43, 122, .36), rgba(20, 4, 31, .66));
  border: 1px solid var(--edge);
  border-radius: 3px 3px 22px 3px;
  transition: border-color var(--dur) var(--ease), transform var(--dur) var(--ease),
    box-shadow var(--dur) var(--ease);
}

.page-contact .channel::after {
  content: "";
  position: absolute;
  right: -1px;
  bottom: -1px;
  width: 28px;
  height: 28px;
  background: var(--c-purple);
  clip-path: polygon(100% 0, 100% 100%, 0 100%);
  border-left: 1px solid var(--edge);
}

.page-contact .channel:hover,
.page-contact .channel:focus-within {
  border-color: var(--edge-strong);
  transform: translateY(-4px);
  box-shadow: 0 20px 44px -26px rgba(232, 181, 75, .62);
}

.page-contact .channel__idx {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .22em;
  color: var(--c-green);
}

.page-contact .channel__name {
  margin: 10px 0 10px;
  font-size: 21px;
  font-weight: 800;
  color: var(--c-paper);
}

.page-contact .channel__lead {
  margin: 0 0 18px;
  font-size: 15px;
  line-height: 1.78;
  color: var(--c-mist);
}

.page-contact .channel__value {
  display: block;
  padding: 11px 13px;
  border: 1px dashed var(--edge);
  border-radius: 4px;
  background: rgba(232, 181, 75, .07);
  font-family: var(--font-mono);
  font-size: 15px;
  letter-spacing: .02em;
  color: var(--c-gold-bright);
  word-break: break-all;
}

.page-contact .channel__value--addr {
  color: var(--c-paper);
  font-size: 14px;
  letter-spacing: 0;
}

.page-contact .channel__list {
  display: grid;
  gap: 9px;
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .channel__list li {
  position: relative;
  padding-left: 18px;
  font-size: 14.5px;
  line-height: 1.7;
  color: rgba(245, 241, 232, .8);
}

.page-contact .channel__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .66em;
  width: 9px;
  height: 2px;
  background: var(--c-gold);
}

/* ---------------- 主题票券 ---------------- */
.page-contact .topic-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.page-contact .ticket {
  position: relative;
  padding: 22px 20px 20px;
  background: var(--c-paper);
  color: var(--c-purple);
  border-radius: 3px;
  box-shadow: 6px 8px 0 -1px rgba(20, 4, 31, .58), 0 0 0 1px rgba(232, 181, 75, .34);
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.page-contact .ticket:hover {
  transform: translate(-2px, -4px);
  box-shadow: 10px 13px 0 -1px rgba(20, 4, 31, .66), 0 0 0 1px var(--c-gold);
}

.page-contact .ticket::before,
.page-contact .ticket::after {
  content: "";
  position: absolute;
  top: 50%;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--c-purple);
  transform: translateY(-50%);
}

.page-contact .ticket::before { left: -8px; }
.page-contact .ticket::after { right: -8px; }

.page-contact .ticket__code {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .24em;
  color: var(--c-tunnel);
}

.page-contact .ticket__title {
  margin: 10px 0 10px;
  font-size: 21px;
  font-weight: 800;
  color: var(--c-purple);
}

.page-contact .ticket__body {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: #3c1a5e;
}

.page-contact .ticket__subj {
  display: block;
  margin-top: 15px;
  padding-top: 13px;
  border-top: 1px dashed rgba(43, 11, 69, .3);
  font-family: var(--font-mono);
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--c-purple);
  word-break: break-word;
}

.page-contact .subject-note {
  margin: 22px 0 0;
  padding: 16px 18px;
  border-left: 3px solid var(--c-gold);
  background: rgba(232, 181, 75, .08);
  font-size: 15px;
  line-height: 1.8;
  color: rgba(245, 241, 232, .86);
}

/* ---------------- 合作洽谈 ---------------- */
.page-contact .partner-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
}

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

.page-contact .partner-list li {
  display: grid;
  gap: 8px;
  padding: 18px 0;
  border-bottom: 1px solid var(--edge-soft);
}

.page-contact .partner-list li:first-child {
  border-top: 1px solid var(--edge-soft);
}

.page-contact .partner-role {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--c-green);
}

.page-contact .partner-need {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(245, 241, 232, .84);
}

.page-contact .partner-figure {
  position: relative;
  margin: 0;
  padding: 10px;
  border: 1px solid var(--edge);
  border-radius: 3px;
  background: rgba(20, 4, 31, .48);
}

.page-contact .partner-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  border-radius: 2px;
  filter: saturate(.82);
}

.page-contact .partner-figure figcaption {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.7;
  color: var(--c-mist);
}

/* ---------------- 处理节奏 ---------------- */
.page-contact .response-steps {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .step {
  display: grid;
  grid-template-columns: 46px 1fr;
  gap: 14px;
  padding: 22px 0;
  border-top: 1px solid var(--edge-soft);
}

.page-contact .step:last-child {
  border-bottom: 1px solid var(--edge-soft);
}

.page-contact .step__no {
  font-family: var(--font-mono);
  font-size: 25px;
  font-weight: 700;
  line-height: 1;
  color: var(--c-gold);
}

.page-contact .step__title {
  margin: 0 0 8px;
  font-size: 17px;
  font-weight: 800;
  color: var(--c-paper);
}

.page-contact .step__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.82;
  color: var(--c-mist);
}

.page-contact .contact-tail {
  margin-top: 30px;
  padding: 18px 20px;
  border: 1px solid var(--edge);
  border-radius: 3px;
  background: rgba(232, 181, 75, .06);
}

.page-contact .contact-tail p {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: rgba(245, 241, 232, .86);
}

.page-contact .contact-tail a {
  color: var(--c-gold-bright);
  text-decoration: none;
  border-bottom: 1px solid var(--edge-strong);
}

.page-contact .contact-tail a:hover,
.page-contact .contact-tail a:focus-visible {
  color: var(--c-green);
  border-bottom-color: var(--c-green);
}

.page-contact a:focus-visible {
  outline: 2px solid var(--c-gold);
  outline-offset: 3px;
}

/* ---------------- 响应式 ---------------- */
@media (max-width: 620px) {
  .page-contact .route-map__label,
  .page-contact .route-map__o-label {
    display: none;
  }

  .page-contact .route-map {
    margin-top: 26px;
  }

  .page-contact .contact-block {
    padding: 44px 0;
  }
}

@media (min-width: 760px) {
  .page-contact .contact-hero {
    padding: 44px 0 66px;
  }

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

  .page-contact .topic-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
  }

  .page-contact .step {
    grid-template-columns: 72px 1fr;
    gap: 20px;
    padding: 26px 0;
  }
}

@media (min-width: 1080px) {
  .page-contact .contact-hero {
    padding: 58px 0 78px;
  }

  .page-contact .channel-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 22px;
  }

  .page-contact .contact-block {
    padding: 72px 0;
  }

  .page-contact .contact-block--response {
    padding-bottom: 120px;
  }

  .page-contact .partner-layout {
    grid-template-columns: 1.04fr .96fr;
    gap: 46px;
    align-items: start;
  }

  .page-contact .partner-figure {
    position: sticky;
    top: calc(var(--header-h) + 24px);
  }

  .page-contact .contact-block--response .wrap {
    display: grid;
    grid-template-columns: 1fr;
    max-width: var(--maxw);
  }

  .page-contact .response-steps {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    column-gap: 44px;
  }

  .page-contact .step:nth-child(1),
  .page-contact .step:nth-child(2) {
    border-top-color: var(--edge-strong);
  }

  .page-contact .subject-note {
    max-width: 72ch;
  }
}

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