.page-contact {
  --contact-gap: 24px;
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  overflow: hidden;
  padding: 28px 0 0;
  background: var(--ink);
  border-bottom: 1px solid var(--rule);
}

.page-contact .contact-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(120% 90% at 84% 6%, rgba(201, 162, 39, 0.16), transparent 62%),
    radial-gradient(90% 70% at 6% 96%, rgba(107, 31, 42, 0.2), transparent 60%);
  pointer-events: none;
}

.page-contact .hero-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  opacity: 0.32;
  pointer-events: none;
}

.page-contact .hero-inner {
  position: relative;
  z-index: 1;
  padding: 32px 0 4px;
}

.page-contact .eyebrow {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--gold);
}

.page-contact h1 {
  max-width: 15em;
  margin: 0;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(30px, 5vw, 66px);
  line-height: 1.16;
  letter-spacing: -0.01em;
  color: var(--white);
}

.page-contact .hero-lead {
  max-width: 38em;
  margin: 22px 0 0;
  font-size: var(--fs-17);
  line-height: 1.9;
  color: var(--paper);
  opacity: 0.84;
}

/* ---------- 三等分联系卡 ---------- */
.page-contact .contact-deck {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr;
  margin: 44px 0 0;
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  background: linear-gradient(180deg, rgba(46, 46, 46, 0.6), rgba(11, 11, 11, 0.15));
}

.page-contact .channel {
  position: relative;
  padding: 30px 22px 34px;
  border-bottom: 1px solid var(--rule);
}

.page-contact .channel:last-child {
  border-bottom: 0;
}

.page-contact .channel::before {
  content: "";
  position: absolute;
  top: 0;
  left: 22px;
  width: 54px;
  height: 1px;
  background: var(--gold);
  transition: width 220ms ease-out;
}

.page-contact .channel:hover::before {
  width: calc(100% - 44px);
}

.page-contact .channel__kicker {
  margin: 0 0 16px;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ash);
}

.page-contact .channel__value {
  display: block;
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: clamp(15px, 1.4vw + 8px, 25px);
  line-height: 1.4;
  letter-spacing: 0.01em;
  color: var(--gold-lift);
  overflow-wrap: anywhere;
  word-break: break-word;
}

.page-contact .channel--addr .channel__value {
  font-size: clamp(15px, 0.9vw + 8px, 20px);
  color: var(--paper);
}

.page-contact .channel__tel {
  text-decoration: none;
  border-bottom: 1px solid rgba(201, 162, 39, 0.45);
  transition: color 220ms ease-out, border-color 220ms ease-out;
}

.page-contact .channel__tel:hover {
  color: var(--white);
  border-bottom-color: var(--gold-lift);
}

.page-contact .channel__text {
  max-width: 30em;
  margin: 0 0 20px;
  font-size: var(--fs-14);
  line-height: 1.85;
  color: var(--paper);
  opacity: 0.76;
}

.page-contact .copy-btn {
  appearance: none;
  padding: 8px 16px;
  background: transparent;
  border: 1px solid var(--rule);
  color: var(--paper);
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.08em;
  cursor: pointer;
  transition: border-color 220ms ease-out, color 220ms ease-out;
}

.page-contact .copy-btn:hover {
  border-color: var(--gold);
  color: var(--gold-lift);
}

.page-contact .copy-btn[data-copied="true"] {
  border-color: var(--gold);
  color: var(--gold);
}

/* ---------- 章节通用 ---------- */
.page-contact .section {
  padding: 64px 0;
  border-bottom: 1px solid var(--rule);
}

.page-contact .section--last {
  border-bottom: 0;
  padding-bottom: 48px;
}

.page-contact .section-num {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: var(--fs-28);
  line-height: 1;
  letter-spacing: 0.06em;
  color: var(--gold);
}

.page-contact .section-title {
  margin: 0 0 18px;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(24px, 3vw, 40px);
  line-height: 1.22;
  color: var(--white);
}

.page-contact .section-lead {
  max-width: 36em;
  margin: 0 0 40px;
  font-size: var(--fs-17);
  line-height: 1.9;
  color: var(--ash);
}

.page-contact .section-head + .prose {
  margin-top: 28px;
}

/* ---------- 双栏 ---------- */
.page-contact .duo {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  align-items: start;
}

/* ---------- 安卓收藏入口 ---------- */
.page-contact .figure {
  margin: 0;
}

.page-contact .figure__frame {
  position: relative;
  aspect-ratio: 5 / 4;
  overflow: hidden;
  border: 1px solid var(--rule);
  background: var(--graphite);
}

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

.page-contact .figure__cap {
  margin-top: 12px;
  font-size: var(--fs-12);
  line-height: 1.7;
  color: var(--ash);
}

/* ---------- 流程时间轴 ---------- */
.page-contact .timeline {
  display: grid;
  grid-template-columns: 1fr;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .timeline__step {
  position: relative;
  padding: 24px 0 26px 28px;
  border-left: 1px solid var(--rule);
}

.page-contact .timeline__step::before {
  content: "";
  position: absolute;
  top: 34px;
  left: 0;
  width: 9px;
  height: 9px;
  background: var(--ink);
  border: 1px solid var(--gold);
  transform: translateX(-50%);
}

.page-contact .timeline__limit {
  display: inline-block;
  margin-bottom: 12px;
  padding: 3px 9px;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.08em;
  color: var(--gold);
  border: 1px solid rgba(201, 162, 39, 0.45);
}

.page-contact .timeline__title {
  margin: 0 0 10px;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: var(--fs-20);
  line-height: 1.4;
  color: var(--white);
}

.page-contact .timeline__text {
  max-width: 32em;
  margin: 0;
  font-size: var(--fs-14);
  line-height: 1.9;
  color: var(--paper);
  opacity: 0.78;
}

/* ---------- 咨询分类入口 ---------- */
.page-contact .route-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--rule);
  border: 1px solid var(--rule);
}

.page-contact .route-tile {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 30px 22px 26px;
  background: var(--ink);
  text-decoration: none;
  transition: background 220ms ease-out, transform 220ms ease-out;
}

.page-contact .route-tile::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 40px;
  height: 1px;
  background: var(--gold);
  transition: width 220ms ease-out;
}

.page-contact .route-tile:hover {
  background: var(--graphite);
  transform: translateY(-2px);
}

.page-contact .route-tile:hover::after {
  width: 100%;
}

.page-contact .route-tile:focus-visible {
  outline: 2px solid var(--gold-lift);
  outline-offset: 2px;
}

.page-contact .route-tile__num {
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.14em;
  color: var(--gold);
}

.page-contact .route-tile__title {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: var(--fs-20);
  line-height: 1.4;
  color: var(--white);
}

.page-contact .route-tile__text {
  flex: 1 1 auto;
  margin: 0;
  font-size: var(--fs-14);
  line-height: 1.85;
  color: var(--paper);
  opacity: 0.76;
}

.page-contact .route-tile__go {
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.08em;
  color: var(--gold-lift);
}

/* ---------- 信息表 ---------- */
.page-contact .board {
  margin: 32px 0 0;
  border-top: 1px solid var(--rule);
}

.page-contact .board__row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 4px;
  padding: 16px 0;
  border-bottom: 1px solid var(--rule);
}

.page-contact .board__key {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ash);
}

.page-contact .board__val {
  margin: 0;
  font-size: var(--fs-14);
  line-height: 1.8;
  color: var(--paper);
}

/* ---------- 来信与站点信息 ---------- */
.page-contact .letter-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 32px 0 0;
}

.page-contact .landing-side {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.page-contact .landing-card {
  padding: 24px 22px;
  border: 1px solid var(--rule);
  background: rgba(46, 46, 46, 0.45);
}

.page-contact .landing-card__kicker {
  margin: 0 0 16px;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gold);
}

.page-contact .landing-card__line {
  margin: 0 0 14px;
  font-size: var(--fs-14);
  line-height: 1.85;
  color: var(--paper);
  opacity: 0.82;
}

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

.page-contact .landmark {
  display: block;
  width: 100%;
  max-width: 300px;
  margin: 0 auto;
  fill: currentColor;
  color: var(--gold);
  opacity: 0.06;
}

/* ---------- 显现动效 ---------- */
.js .page-contact [data-reveal] {
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 280ms ease-out, transform 280ms ease-out;
}

.js .page-contact [data-reveal].is-visible {
  opacity: 1;
  transform: none;
}

/* ---------- 断点 ---------- */
@media (min-width: 640px) {
  .page-contact .route-grid {
    grid-template-columns: 1fr 1fr;
  }

  .page-contact .board__row {
    grid-template-columns: 180px 1fr;
    gap: 24px;
    align-items: baseline;
  }
}

@media (min-width: 900px) {
  .page-contact .contact-hero {
    padding-top: 40px;
  }

  .page-contact .hero-inner {
    padding: 48px 0 8px;
  }

  .page-contact .contact-deck {
    grid-template-columns: repeat(3, 1fr);
    margin-top: 56px;
  }

  .page-contact .channel {
    border-bottom: 0;
    border-right: 1px solid var(--rule);
    padding: 36px 28px 40px;
  }

  .page-contact .channel:last-child {
    border-right: 0;
  }

  .page-contact .channel::before {
    left: 28px;
  }

  .page-contact .channel:hover::before {
    width: calc(100% - 56px);
  }

  .page-contact .duo {
    grid-template-columns: 1.05fr 0.95fr;
    gap: 56px;
  }

  .page-contact .duo--reverse {
    grid-template-columns: 1.15fr 0.85fr;
  }
}

@media (min-width: 1024px) {
  .page-contact .section {
    padding: 96px 0;
  }

  .page-contact .section--last {
    padding-bottom: 64px;
  }

  .page-contact .timeline {
    grid-template-columns: repeat(4, 1fr);
  }

  .page-contact .timeline__step {
    padding: 30px 28px 0 0;
    border-left: 0;
    border-top: 1px solid var(--rule);
  }

  .page-contact .timeline__step::before {
    top: 0;
    left: 0;
    transform: translate(-50%, -50%);
  }

  .page-contact .route-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

@media (min-width: 1280px) {
  .page-contact .duo {
    gap: 72px;
  }
}

/* ---------- 动效降级 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-contact .channel::before,
  .page-contact .route-tile::after,
  .page-contact .route-tile,
  .page-contact .copy-btn,
  .page-contact .channel__tel {
    transition: none;
  }

  .page-contact .route-tile:hover {
    transform: none;
  }

  .js .page-contact [data-reveal] {
    opacity: 1;
    transform: none;
    transition: none;
  }
}