.page-contact {
  --contact-line: rgba(213, 225, 238, 0.18);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  overflow: hidden;
  padding-top: 40px;
  padding-bottom: 64px;
  background:
    radial-gradient(1100px 520px at 80% -12%, rgba(99, 210, 214, 0.16), transparent 62%),
    radial-gradient(780px 420px at 6% 112%, rgba(225, 74, 43, 0.2), transparent 68%),
    var(--ice-deep);
}

.page-contact .contact-hero .breadcrumb {
  margin-bottom: 40px;
}

.page-contact .contact-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  align-items: end;
}

.page-contact .contact-hero__text .index-label {
  display: block;
  margin-bottom: 20px;
}

.page-contact .contact-hero__text h1 {
  margin: 0 0 24px;
  color: var(--paper);
}

.page-contact .contact-hero__lead {
  max-width: 56ch;
  margin: 0;
  font-size: 17px;
  line-height: 1.85;
  color: var(--text-on-dark);
}

.page-contact .contact-hero__media {
  box-shadow: var(--hard-shadow);
}

/* ---------- 超大联络牌 ---------- */
.page-contact .contact-board {
  display: grid;
  grid-template-columns: 1fr;
  margin-top: 56px;
  border-top: 2px solid var(--line-dark);
}

.page-contact .contact-board__cell {
  padding: 26px 0;
  border-bottom: 1px solid var(--line-dark);
}

.page-contact .contact-board__value {
  margin: 10px 0 12px;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(30px, 8vw, 54px);
  font-weight: 500;
  line-height: 1.06;
  letter-spacing: -0.01em;
  color: var(--paper);
  overflow-wrap: anywhere;
}

.page-contact .contact-board__value--mail {
  font-size: clamp(15px, 2.5vw, 30px);
  color: var(--frost);
}

.page-contact .contact-board__note {
  margin: 0;
  max-width: 34ch;
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-muted-dark);
}

/* ---------- 渠道一览 ---------- */
.page-contact .contact-channels__aside {
  max-width: 30ch;
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(25, 20, 16, 0.68);
}

.page-contact .channel-list {
  margin-top: 8px;
  border-top: 2px solid var(--ink);
}

.page-contact .channel-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  padding: 28px 0;
  border-bottom: 1px solid rgba(25, 20, 16, 0.22);
}

.page-contact .channel-row__name {
  display: flex;
  flex-direction: column;
  gap: 10px;
  align-items: flex-start;
}

.page-contact .channel-row__value {
  margin: 0;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 14px;
  line-height: 1.6;
  color: var(--ink);
  overflow-wrap: anywhere;
}

.page-contact .channel-row__body h3 {
  margin: 0 0 8px;
  font-size: 20px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--ink);
}

.page-contact .channel-row__body p {
  margin: 0;
  font-size: 16px;
  line-height: 1.8;
  color: rgba(25, 20, 16, 0.82);
}

.page-contact .channel-row__tip {
  padding-top: 8px;
  border-top: 1px dashed rgba(25, 20, 16, 0.28);
}

.page-contact .channel-row__tip p {
  margin: 6px 0 0;
  font-size: 15px;
  font-weight: 700;
  color: var(--ember);
}

/* ---------- 常见咨询 ---------- */
.page-contact .contact-topics {
  background:
    linear-gradient(180deg, rgba(99, 210, 214, 0.07), transparent 40%),
    var(--ice-night);
}

.page-contact .contact-topics .section-head__title {
  color: var(--paper);
}

.page-contact .contact-topics__intro {
  max-width: 52ch;
  margin: 0 0 24px;
  font-size: 16px;
  line-height: 1.8;
  color: var(--text-on-dark);
}

.page-contact .contact-topics .filter-bar {
  margin-bottom: 32px;
}

.page-contact .contact-topics__grid {
  align-items: stretch;
}

.page-contact .contact-topics .card {
  display: flex;
  flex-direction: column;
  padding: 24px;
  background: var(--ice-deep);
  border: 2px solid var(--line-dark);
  color: var(--text-on-dark);
  box-shadow: 0 0 0 rgba(0, 0, 0, 0);
}

.page-contact .contact-topics .card:hover {
  box-shadow: var(--hard-shadow-ember);
  border-color: var(--ember);
}

.page-contact .contact-topics .card__title {
  margin: 12px 0 10px;
  font-size: 21px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--paper);
}

.page-contact .contact-topics .card__meta {
  margin: 0 0 16px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--mist);
}

.page-contact .contact-topics__tip {
  margin: 0 0 8px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--crystal);
}

.page-contact .contact-topics__list {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: topic;
}

.page-contact .contact-topics__list li {
  position: relative;
  padding-left: 26px;
  margin-bottom: 8px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-on-dark);
}

.page-contact .contact-topics__list li::before {
  counter-increment: topic;
  content: counter(topic, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 2px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--gold);
}

/* ---------- 回复时效 ---------- */
.page-contact .response-band {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  align-items: center;
  padding-bottom: 32px;
  border-bottom: 2px solid var(--ink);
}

.page-contact .response-band__num {
  display: block;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(84px, 17vw, 180px);
  font-weight: 500;
  line-height: 0.82;
  letter-spacing: -0.04em;
  color: var(--ember);
}

.page-contact .response-band__unit {
  display: block;
  margin-top: 12px;
  color: rgba(25, 20, 16, 0.7);
}

.page-contact .response-band__text h2 {
  margin: 0 0 12px;
  color: var(--ink);
}

.page-contact .response-band__text p {
  max-width: 46ch;
  margin: 0;
  font-size: 16px;
  line-height: 1.85;
  color: rgba(25, 20, 16, 0.82);
}

.page-contact .response-tips {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  margin: 32px 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .response-tips li {
  padding: 20px;
  background: rgba(245, 238, 224, 0.62);
  border-left: 4px solid var(--crystal);
}

.page-contact .response-tips__idx {
  display: block;
  margin-bottom: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--ember);
}

.page-contact .response-tips h3 {
  margin: 0 0 8px;
  font-size: 18px;
  font-weight: 700;
  line-height: 1.45;
  color: var(--ink);
}

.page-contact .response-tips p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(25, 20, 16, 0.78);
}

/* ---------- 纠错与合作 ---------- */
.page-contact .contact-fix {
  background:
    radial-gradient(720px 380px at 92% 0%, rgba(233, 185, 73, 0.14), transparent 66%),
    var(--ice-deep);
}

.page-contact .contact-fix .section-head__title {
  color: var(--paper);
}

.page-contact .contact-fix__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  margin-top: 8px;
}

.page-contact .fix-card {
  padding: 26px;
  background: var(--ice-night);
  border: 2px solid var(--line-dark);
  box-shadow: var(--hard-shadow);
}

.page-contact .fix-card .index-label {
  color: var(--gold);
}

.page-contact .fix-card h3 {
  margin: 12px 0 12px;
  font-size: 22px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--paper);
}

.page-contact .fix-card p {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--text-on-dark);
}

.page-contact .fix-card__hint {
  margin-top: 16px !important;
  padding-top: 14px;
  border-top: 1px dashed var(--line-dark);
  font-size: 14px !important;
  color: var(--mist) !important;
}

/* ---------- 提交前先看 ---------- */
.page-contact .contact-self__aside {
  max-width: 30ch;
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(25, 20, 16, 0.68);
}

.page-contact .self-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  margin-top: 8px;
}

.page-contact .self-card {
  display: flex;
  flex-direction: column;
  padding: 22px;
  background: rgba(245, 238, 224, 0.5);
  border: 2px solid var(--ink);
  color: var(--ink);
  text-decoration: none;
  transition: box-shadow 200ms ease, transform 200ms ease, background 200ms ease;
}

.page-contact .self-card:hover,
.page-contact .self-card:focus-visible {
  background: var(--paper);
  transform: translate(-2px, -2px);
  box-shadow: var(--hard-shadow-ember);
}

.page-contact .self-card .index-label {
  display: block;
  margin-bottom: 10px;
}

.page-contact .self-card h3 {
  margin: 0 0 8px;
  font-size: 19px;
  font-weight: 700;
  line-height: 1.45;
}

.page-contact .self-card p {
  margin: 0 0 16px;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(25, 20, 16, 0.78);
}

.page-contact .self-card__go {
  margin-top: auto;
  font-size: 14px;
  font-weight: 700;
  color: var(--ember);
}

/* ---------- 来信与寄送 ---------- */
.page-contact .contact-mail__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  align-items: start;
}

.page-contact .contact-mail__text h2 {
  margin: 12px 0 14px;
  color: var(--ink);
}

.page-contact .contact-mail__text > p {
  max-width: 46ch;
  margin: 0 0 22px;
  font-size: 16px;
  line-height: 1.85;
  color: rgba(25, 20, 16, 0.82);
}

.page-contact .contact-mail__address {
  padding: 20px 22px;
  background: var(--paper);
  border: 2px solid var(--ink);
  box-shadow: var(--hard-shadow);
}

.page-contact .contact-mail__addr {
  margin: 10px 0 0;
  font-size: clamp(18px, 3.4vw, 24px);
  font-weight: 700;
  line-height: 1.5;
  color: var(--ink);
}

.page-contact .contact-mail__note {
  margin: 22px 0 0 !important;
  font-size: 14px !important;
  line-height: 1.8 !important;
  color: rgba(25, 20, 16, 0.72) !important;
  overflow-wrap: anywhere;
}

.page-contact .contact-mail__figure {
  box-shadow: var(--hard-shadow);
}

/* ---------- 底部信息带 ---------- */
.page-contact .contact-strip-wrap {
  padding-top: 32px;
  padding-bottom: 32px;
  background: var(--ice-deep);
}

.page-contact .contact-strip {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 28px;
  padding-top: 20px;
  border-top: 2px solid var(--ember);
}

.page-contact .contact-strip__item {
  margin: 0;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--mist);
}

.page-contact .contact-strip__links {
  display: flex;
  gap: 10px;
  margin-left: auto;
}

.page-contact .contact-strip__links a {
  color: var(--frost);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

.page-contact .contact-strip__links a:hover,
.page-contact .contact-strip__links a:focus-visible {
  border-bottom-color: var(--frost);
}

/* ---------- 断点 ---------- */
@media (min-width: 768px) {
  .page-contact .contact-hero {
    padding-top: 56px;
    padding-bottom: 80px;
  }

  .page-contact .contact-hero__grid {
    grid-template-columns: 1.3fr 0.9fr;
    gap: 40px;
  }

  .page-contact .contact-board {
    grid-template-columns: 1fr 1fr;
    margin-top: 64px;
  }

  .page-contact .contact-board__cell {
    padding: 30px 0;
  }

  .page-contact .contact-board__cell + .contact-board__cell {
    padding-left: 32px;
    border-left: 1px solid var(--line-dark);
  }

  .page-contact .response-tips {
    grid-template-columns: repeat(3, 1fr);
  }

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

@media (min-width: 1024px) {
  .page-contact .contact-hero__grid {
    grid-template-columns: 1.25fr 1fr;
    gap: 56px;
  }

  .page-contact .channel-row {
    grid-template-columns: 300px 1fr 200px;
    gap: 28px;
    align-items: start;
  }

  .page-contact .channel-row__tip {
    padding-top: 0;
    border-top: 0;
  }

  .page-contact .response-band {
    grid-template-columns: minmax(220px, 300px) 1fr;
    gap: 56px;
    padding-bottom: 44px;
  }

  .page-contact .contact-fix__grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 28px;
  }

  .page-contact .contact-mail__grid {
    grid-template-columns: 1fr 1.05fr;
    gap: 48px;
    align-items: center;
  }
}

@media (min-width: 1280px) {
  .page-contact .contact-board__value {
    font-size: 58px;
  }

  .page-contact .contact-board__value--mail {
    font-size: 32px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .self-card {
    transition: none;
  }

  .page-contact .self-card:hover,
  .page-contact .self-card:focus-visible {
    transform: none;
  }
}