.page-contact {
  --contact-rail: 232px;
  background:
    radial-gradient(120% 58% at 84% 0%, rgba(122, 92, 255, .14), transparent 62%),
    radial-gradient(88% 48% at 6% 10%, rgba(34, 224, 214, .1), transparent 62%),
    var(--ink-900);
  color: var(--mist);
  padding-bottom: clamp(3rem, 9vw, 6rem);
}

.page-contact .shell {
  max-width: var(--shell);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.page-contact .breadcrumb {
  padding-block: 1.15rem .35rem;
}

.page-contact .section {
  padding-block: 0;
}

/* ---------- 首屏 ---------- */

.page-contact .contact-hero {
  padding-top: clamp(.75rem, 3vw, 1.5rem);
  padding-bottom: clamp(2rem, 6vw, 3.75rem);
}

.page-contact .hero-grid {
  display: grid;
  gap: clamp(2rem, 6vw, 3.25rem);
  align-items: center;
}

.page-contact .hero-kicker {
  margin: 0 0 1.15rem;
}

.page-contact .hero-title {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(2.05rem, 7vw, 3.9rem);
  line-height: 1.1;
  letter-spacing: .022em;
  color: var(--paper);
  margin: 0 0 1.15rem;
  max-width: 19ch;
}

.page-contact .hero-lead {
  font-family: var(--font-body);
  font-size: clamp(1rem, 2.5vw, 1.1rem);
  line-height: 1.78;
  color: var(--mist);
  max-width: 36ch;
  margin: 0 0 1.85rem;
}

.page-contact .hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem;
}

.page-contact .hero-visual {
  position: relative;
  width: min(100%, 420px);
  margin-inline: auto;
  aspect-ratio: 1 / 1;
}

.page-contact .hero-visual svg {
  width: 100%;
  height: 100%;
  display: block;
}

.page-contact .hero-rings {
  transform-origin: 200px 200px;
  animation: contact-breathe 7s var(--ease) infinite;
}

@keyframes contact-breathe {
  0%, 100% { transform: scale(1); opacity: .78; }
  50% { transform: scale(1.028); opacity: 1; }
}

/* ---------- 章节骨架 ---------- */

.page-contact .contact-layout {
  display: grid;
  gap: clamp(1.25rem, 4vw, 2rem);
  align-items: start;
}

.page-contact .section-index {
  min-width: 0;
}

.page-contact .index-list {
  display: flex;
  gap: .5rem;
  margin: 0;
  padding: 0 0 .6rem;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: none;
}

.page-contact .index-list::-webkit-scrollbar {
  display: none;
}

.page-contact .index-list li {
  flex: 0 0 auto;
}

.page-contact .index-link {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  white-space: nowrap;
  padding: .5rem .9rem;
  border-radius: var(--pill);
  border: 1px solid var(--line);
  color: var(--mist);
  text-decoration: none;
  font-family: var(--font-body);
  font-size: .82rem;
  letter-spacing: .04em;
  transition: color .25s var(--ease), border-color .25s var(--ease), background-color .25s var(--ease);
}

.page-contact .index-link:hover,
.page-contact .index-link:focus-visible,
.page-contact .index-link[aria-current="true"] {
  color: var(--neon);
  border-color: var(--line-strong);
  background: var(--neon-dim);
}

.page-contact .index-num {
  font-family: var(--font-mono);
  font-size: .72rem;
  color: var(--amber);
  letter-spacing: .06em;
}

.page-contact .contact-body {
  min-width: 0;
}

.page-contact .chapter {
  padding-block: clamp(1.6rem, 5vw, 2.85rem);
  scroll-margin-top: calc(var(--header-h) + 1.25rem);
}

.page-contact .chapter:first-child {
  padding-top: 0;
}

.page-contact .chapter-head {
  margin-bottom: clamp(1.35rem, 4vw, 2.1rem);
}

.page-contact .chapter-index {
  font-family: var(--font-mono);
  font-size: .78rem;
  letter-spacing: .2em;
  color: var(--amber);
  margin: 0 0 .65rem;
}

.page-contact .chapter-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.42rem, 4.4vw, 2.15rem);
  line-height: 1.28;
  letter-spacing: .015em;
  color: var(--paper);
  margin: 0 0 .8rem;
}

.page-contact .chapter-lead {
  font-family: var(--font-body);
  font-size: .97rem;
  line-height: 1.78;
  color: var(--mist);
  margin: 0;
  max-width: 38ch;
}

.page-contact .chapter-head--split {
  display: grid;
  gap: clamp(1.25rem, 4vw, 2.5rem);
  align-items: center;
}

/* ---------- 图片容器 ---------- */

.page-contact .media {
  position: relative;
  margin: 0;
  border-radius: var(--r-lg);
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--ink-800);
}

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

.page-contact .media__caption {
  padding: .7rem 1rem;
  font-family: var(--font-body);
  font-size: .76rem;
  line-height: 1.6;
  color: var(--mist);
  background: var(--ink-800);
  border-top: 1px solid var(--line);
}

/* ---------- 三渠道 ---------- */

.page-contact .lanes {
  display: grid;
  gap: clamp(1rem, 3vw, 1.5rem);
}

.page-contact .lane {
  position: relative;
  padding: clamp(1.25rem, 3.5vw, 1.75rem);
  border-radius: var(--r-lg);
  border: 1px solid var(--line);
  background: linear-gradient(170deg, var(--ink-800), var(--ink-900) 82%);
  overflow: hidden;
  transition: border-color .3s var(--ease), transform .3s var(--ease);
}

.page-contact .lane::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 3px;
  background: linear-gradient(180deg, var(--neon), var(--violet));
  opacity: .75;
}

.page-contact .lane:hover,
.page-contact .lane:focus-within {
  border-color: var(--line-strong);
  transform: translateY(-3px);
}

.page-contact .lane-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.06rem;
  line-height: 1.45;
  color: var(--paper);
  margin: .85rem 0 .5rem;
}

.page-contact .lane-value {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(.92rem, 2.4vw, 1.02rem);
  line-height: 1.55;
  letter-spacing: .01em;
  color: var(--amber);
  overflow-wrap: anywhere;
}

.page-contact .lane-time {
  margin: .55rem 0 .85rem;
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .08em;
  color: var(--teal-deep);
  color: #4fd6c8;
}

.page-contact .lane-text {
  margin: 0;
  font-family: var(--font-body);
  font-size: .9rem;
  line-height: 1.75;
  color: var(--mist);
}

/* ---------- 暖纸阅读层 ---------- */

.page-contact .sheet {
  color: var(--paper-ink);
  background: var(--paper);
  border-radius: var(--r-lg);
  padding: clamp(1.35rem, 4vw, 2.5rem);
}

.page-contact .sheet .prose {
  max-width: 38em;
}

.page-contact .sheet p {
  font-family: var(--font-body);
  font-size: .95rem;
  line-height: 1.85;
  color: var(--paper-ink);
  margin: 0 0 1rem;
}

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

.page-contact .check-list {
  list-style: none;
  margin: 1.5rem 0 0;
  padding: 1.5rem 0 0;
  border-top: 1px solid rgba(12, 18, 32, .14);
  display: grid;
  gap: .85rem;
}

.page-contact .check-list li {
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr);
  gap: .8rem;
  align-items: start;
  font-family: var(--font-body);
  font-size: .92rem;
  line-height: 1.78;
  color: var(--paper-ink);
}

.page-contact .check-list strong {
  font-weight: 700;
}

.page-contact .mark {
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  border: 1px solid rgba(12, 18, 32, .26);
  font-family: var(--font-mono);
  font-size: .68rem;
  letter-spacing: .04em;
  color: var(--paper-ink);
}

.page-contact .sheet-note {
  margin-top: 1.5rem;
  padding-top: 1.35rem;
  border-top: 1px solid rgba(12, 18, 32, .14);
}

/* ---------- 电话与清单 ---------- */

.page-contact .call-grid {
  display: grid;
  gap: clamp(1rem, 3vw, 1.5rem);
}

.page-contact .call-block {
  padding: clamp(1.25rem, 3.5vw, 1.85rem);
  border-radius: var(--r-lg);
  border: 1px solid var(--line);
  background: var(--ink-800);
}

.page-contact .call-block--amber {
  background: linear-gradient(160deg, rgba(255, 154, 60, .12), rgba(122, 92, 255, .1) 70%, transparent);
  border-color: rgba(255, 154, 60, .32);
}

.page-contact .call-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.05rem;
  line-height: 1.5;
  color: var(--paper);
  margin: 0 0 1rem;
}

.page-contact .call-text,
.page-contact .call-note {
  font-family: var(--font-body);
  font-size: .92rem;
  line-height: 1.8;
  color: var(--mist);
  margin: 0;
}

.page-contact .call-note {
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: .78rem;
  line-height: 1.7;
  letter-spacing: .03em;
  color: var(--amber);
}

.page-contact .tick-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: .6rem;
}

.page-contact .tick-list li {
  position: relative;
  padding-left: 1.4rem;
  font-family: var(--font-body);
  font-size: .92rem;
  line-height: 1.72;
  color: var(--mist);
}

.page-contact .tick-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .58em;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--neon);
  box-shadow: 0 0 0 3px var(--neon-dim);
}

.page-contact .partner .tick-list li {
  color: var(--mist);
}

/* ---------- 材料清单 ---------- */

.page-contact .prep-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: .85rem;
  counter-reset: none;
}

.page-contact .prep-item {
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr);
  gap: clamp(.85rem, 3vw, 1.4rem);
  padding: clamp(1.1rem, 3.5vw, 1.6rem);
  border-radius: var(--r-md);
  border: 1px solid var(--line);
  background: linear-gradient(140deg, rgba(20, 28, 51, .9), rgba(5, 7, 14, .6));
  transition: border-color .3s var(--ease);
}

.page-contact .prep-item:hover {
  border-color: var(--line-strong);
}

.page-contact .prep-num {
  font-family: var(--font-mono);
  font-size: 1.55rem;
  line-height: 1;
  letter-spacing: .02em;
  color: var(--amber);
  padding-top: .15rem;
}

.page-contact .prep-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
  line-height: 1.5;
  color: var(--paper);
  margin: 0 0 .45rem;
}

.page-contact .prep-item p {
  margin: 0;
  font-family: var(--font-body);
  font-size: .9rem;
  line-height: 1.78;
  color: var(--mist);
}

/* ---------- 合作 ---------- */

.page-contact .partner-grid {
  display: grid;
  gap: clamp(1rem, 3vw, 1.5rem);
}

.page-contact .partner {
  padding: clamp(1.25rem, 3.5vw, 1.85rem);
  border-radius: var(--r-lg);
  border: 1px solid var(--line);
  background: var(--ink-800);
}

.page-contact .partner-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.08rem;
  line-height: 1.5;
  color: var(--paper);
  margin: 0 0 .8rem;
}

.page-contact .partner p {
  margin: 0 0 1.1rem;
  font-family: var(--font-body);
  font-size: .92rem;
  line-height: 1.8;
  color: var(--mist);
}

.page-contact .partner-foot {
  margin: clamp(1.25rem, 3.5vw, 1.75rem) 0 0;
  padding: 1rem 1.15rem;
  border-radius: var(--r-md);
  border-left: 3px solid var(--amber);
  background: rgba(255, 154, 60, .08);
  font-family: var(--font-body);
  font-size: .88rem;
  line-height: 1.75;
  color: var(--mist);
}

.page-contact .mono-inline {
  font-family: var(--font-mono);
  color: var(--amber);
  overflow-wrap: anywhere;
}

/* ---------- 地址 ---------- */

.page-contact .address-grid {
  display: grid;
  gap: clamp(1.5rem, 4vw, 2.5rem);
  align-items: center;
}

.page-contact .address-line {
  font-family: var(--font-mono);
  font-size: clamp(1.02rem, 3vw, 1.3rem);
  line-height: 1.55;
  letter-spacing: .015em;
  color: var(--amber);
  margin: 0 0 1rem;
  overflow-wrap: anywhere;
}

.page-contact .address-note {
  margin: 0 0 1.5rem;
  font-family: var(--font-body);
  font-size: .92rem;
  line-height: 1.8;
  color: var(--mist);
}

.page-contact .address-actions {
  display: flex;
  flex-wrap: wrap;
  gap: .7rem;
}

/* ---------- 响应式 ---------- */

@media (min-width: 700px) {
  .page-contact .lanes {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (min-width: 900px) {
  .page-contact .hero-grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
  }

  .page-contact .lanes {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .chapter-head--split {
    grid-template-columns: minmax(0, 1fr) minmax(240px, 340px);
  }

  .page-contact .address-grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
  }

  .page-contact .media--address {
    align-self: stretch;
  }
}

@media (min-width: 980px) {
  .page-contact .contact-layout {
    grid-template-columns: var(--contact-rail) minmax(0, 1fr);
    column-gap: clamp(2rem, 5vw, 3.5rem);
  }

  .page-contact .section-index {
    position: sticky;
    top: calc(var(--header-h) + 1.5rem);
  }

  .page-contact .index-list {
    flex-direction: column;
    gap: .3rem;
    overflow: visible;
    padding: 0;
  }

  .page-contact .index-link {
    width: 100%;
    justify-content: flex-start;
    border-color: transparent;
    border-radius: var(--r-sm);
    padding: .58rem .75rem;
    font-size: .84rem;
  }

  .page-contact .index-link:not(:hover):not(:focus-visible):not([aria-current="true"]) {
    background: transparent;
  }

  .page-contact .chapter-title {
    max-width: 26ch;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .hero-rings {
    animation: none;
  }

  .page-contact .lane,
  .page-contact .prep-item,
  .page-contact .index-link {
    transition: none;
  }

  .page-contact .lane:hover,
  .page-contact .lane:focus-within {
    transform: none;
  }
}