/* ===== 联系入口页 · page-contact ===== */
.page-contact {
  --ch-mail: var(--cyan);
  --ch-phone: var(--magenta);
  --ch-post: var(--amber);
  position: relative;
  display: block;
}

.page-contact .section {
  padding: 40px 0;
}

.page-contact img {
  max-width: 100%;
  height: auto;
}

.page-contact .crumbs {
  margin-top: 18px;
}

.page-contact [id^="channel-"] {
  scroll-margin-top: 72px;
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  overflow: hidden;
  padding: 30px 0 42px;
  border-bottom: 3px solid var(--line);
  background:
    radial-gradient(120% 90% at 8% 0%, rgba(122, 92, 255, .22), transparent 58%),
    radial-gradient(90% 80% at 100% 100%, rgba(47, 243, 224, .16), transparent 62%),
    linear-gradient(180deg, rgba(19, 26, 62, .9), rgba(10, 15, 44, .2));
}

.page-contact .contact-hero::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  width: 3px;
  background: linear-gradient(180deg, var(--cyan), rgba(47, 243, 224, 0) 72%);
  box-shadow: 0 0 20px rgba(47, 243, 224, .55);
  pointer-events: none;
}

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

.page-contact .contact-hero__kicker {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .28em;
  color: var(--amber);
}

.page-contact .contact-hero__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(30px, 7.4vw, 68px);
  line-height: 1.08;
  letter-spacing: .01em;
  color: var(--mist);
  text-shadow: 0 0 1px rgba(47, 243, 224, .9), 0 0 26px rgba(47, 243, 224, .28);
}

.page-contact .contact-hero__lede {
  max-width: 60ch;
  margin: 18px 0 0;
  font-size: 16px;
  line-height: 1.8;
  color: var(--mist);
}

.page-contact .contact-hero__jump {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 26px;
}

.page-contact .contact-hero__jump-item {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 9px 15px;
  border: 2px solid var(--line);
  border-bottom-width: 4px;
  background: var(--panel);
  color: var(--mist);
  font-size: 14px;
  text-decoration: none;
  transition: border-color .18s ease, box-shadow .18s ease, transform .12s ease;
}

.page-contact .contact-hero__jump-item:hover,
.page-contact .contact-hero__jump-item:focus-visible {
  border-color: var(--cyan);
  box-shadow: 0 0 0 1px rgba(47, 243, 224, .4), 0 8px 20px -8px rgba(47, 243, 224, .7);
}

.page-contact .contact-hero__jump-item:active {
  transform: translateY(2px);
}

.page-contact .contact-hero__jump-no {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--amber);
}

/* ---------- 渠道图 ---------- */
.page-contact .contact-figure {
  margin: 22px 0 0;
  border: 3px solid var(--line);
  background: var(--panel);
  box-shadow: 8px 8px 0 rgba(5, 7, 15, .55);
}

/* ---------- 三张联系卡 ---------- */
.page-contact .contact-channels {
  margin-top: 24px;
}

.page-contact .channel-card {
  --ch: var(--cyan);
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 24px 20px 18px;
  border: 3px solid var(--line);
  background: linear-gradient(180deg, rgba(19, 26, 62, .96), rgba(10, 15, 44, .9));
  box-shadow: 8px 8px 0 rgba(5, 7, 15, .55);
  transition: box-shadow .2s ease, transform .18s ease, border-color .2s ease;
}

.page-contact .channel-card::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 6px;
  background: var(--ch);
  box-shadow: 0 0 14px -2px var(--ch);
  transition: height .2s ease;
}

.page-contact .channel-card--mail { --ch: var(--ch-mail); }
.page-contact .channel-card--phone { --ch: var(--ch-phone); }
.page-contact .channel-card--post { --ch: var(--ch-post); }

.page-contact .channel-card:hover,
.page-contact .channel-card:focus-within {
  transform: translateY(-3px);
  border-color: var(--ch);
  box-shadow: 10px 12px 0 rgba(5, 7, 15, .6), 0 0 26px -10px var(--ch);
}

.page-contact .channel-card:hover::before,
.page-contact .channel-card:focus-within::before {
  height: 12px;
}

.page-contact .channel-card__no {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .22em;
  color: var(--ch);
}

.page-contact .channel-card__value {
  margin: 4px 0 0;
  font-family: var(--font-mono);
  font-size: 17px;
  line-height: 1.6;
  color: var(--mist);
  word-break: break-word;
  overflow-wrap: anywhere;
}

.page-contact .channel-card__value--addr {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
}

.page-contact .channel-card__scope {
  margin: auto 0 0;
  padding-top: 12px;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--ch);
}

/* ---------- 响应时段 ---------- */
.page-contact .contact-window {
  display: grid;
  gap: 14px;
  margin-top: 22px;
}

.page-contact .contact-window__card {
  padding: 20px 18px;
  border: 2px solid var(--line);
  border-left-width: 7px;
  background: var(--panel);
  box-shadow: 6px 6px 0 rgba(5, 7, 15, .5);
}

.page-contact .contact-window__card--cyan { border-left-color: var(--cyan); }
.page-contact .contact-window__card--magenta { border-left-color: var(--magenta); }

.page-contact .contact-window__label {
  margin: 0;
  font-size: 14px;
  letter-spacing: .06em;
  color: var(--steel);
}

.page-contact .contact-window__addr {
  margin: 8px 0 10px;
  font-family: var(--font-mono);
  font-size: 16px;
  color: var(--mist);
  word-break: break-word;
  overflow-wrap: anywhere;
}

.page-contact .contact-window__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--steel);
}

.page-contact .contact-tempo {
  display: grid;
  gap: 12px;
  margin-top: 18px;
}

.page-contact .contact-tempo .stat {
  padding: 16px;
  border: 2px solid var(--line);
  background: linear-gradient(180deg, rgba(19, 26, 62, .95), rgba(10, 15, 44, .85));
}

.page-contact .contact-tempo .stat__value {
  display: block;
  font-family: var(--font-mono);
  font-size: 26px;
  line-height: 1.15;
  color: var(--amber);
}

.page-contact .contact-tempo .stat__label {
  display: block;
  margin-top: 8px;
  font-size: 14px;
  line-height: 1.6;
  color: var(--steel);
}

/* ---------- 常见联系场景 ---------- */
.page-contact .contact-scenes {
  margin-top: 22px;
  border-top: 1px solid var(--line);
}

.page-contact .scene {
  border-bottom: 1px solid var(--line);
  background: linear-gradient(90deg, rgba(19, 26, 62, .82), rgba(10, 15, 44, .5));
  transition: background .2s ease;
}

.page-contact .scene[open] {
  background: linear-gradient(90deg, rgba(19, 26, 62, .98), rgba(10, 15, 44, .7));
}

.page-contact .scene__head {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 6px;
  cursor: pointer;
  list-style: none;
}

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

.page-contact .scene__title {
  font-size: 16px;
  font-weight: 600;
  color: var(--mist);
}

.page-contact .scene__plus {
  position: relative;
  flex: none;
  width: 16px;
  height: 16px;
  margin-left: auto;
}

.page-contact .scene__plus::before,
.page-contact .scene__plus::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 50%;
  height: 2px;
  background: var(--cyan);
  transform: translateY(-50%);
  transition: transform .2s ease, opacity .2s ease;
}

.page-contact .scene__plus::after {
  transform: translateY(-50%) rotate(90deg);
}

.page-contact .scene[open] .scene__plus::after {
  transform: translateY(-50%) rotate(0deg);
  opacity: 0;
}

.page-contact .scene__body {
  padding: 0 6px 20px;
}

.page-contact .scene__body > p {
  margin: 0 0 10px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--steel);
}

.page-contact .scene__sample {
  margin: 0;
  padding: 12px 15px;
  border-left: 3px solid var(--violet);
  background: rgba(122, 92, 255, .12);
  font-size: 15px;
  line-height: 1.85;
  color: var(--mist);
}

/* ---------- 来信信息清单 ---------- */
.page-contact .contact-checklist {
  display: grid;
  gap: 12px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .contact-checklist__item {
  display: flex;
  gap: 14px;
  padding: 16px 18px;
  border: 2px solid var(--line);
  background: var(--panel);
  transition: border-color .18s ease, transform .15s ease;
}

.page-contact .contact-checklist__item:hover {
  border-color: rgba(47, 243, 224, .7);
  transform: translateX(3px);
}

.page-contact .contact-checklist__mark {
  position: relative;
  flex: none;
  width: 22px;
  height: 22px;
  margin-top: 2px;
  border: 2px solid var(--cyan);
  box-shadow: inset 0 0 12px rgba(47, 243, 224, .3);
}

.page-contact .contact-checklist__mark::after {
  content: "";
  position: absolute;
  left: 5px;
  top: 1px;
  width: 6px;
  height: 11px;
  border-right: 2px solid var(--cyan);
  border-bottom: 2px solid var(--cyan);
  transform: rotate(42deg);
}

.page-contact .contact-checklist__title {
  margin: 0;
  font-size: 16px;
  font-weight: 600;
  color: var(--mist);
}

.page-contact .contact-checklist__text {
  margin: 6px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--steel);
}

/* ---------- 纠错与合作 ---------- */
.page-contact .contact-partner {
  display: grid;
  gap: 22px;
  margin-top: 22px;
}

.page-contact .contact-partner__media {
  margin: 0;
  border: 3px solid var(--line);
  background: var(--panel);
  box-shadow: 8px 8px 0 rgba(5, 7, 15, .55);
}

.page-contact .contact-partner__sub {
  margin: 0 0 8px;
  font-size: 18px;
  font-weight: 700;
  color: var(--cyan);
}

.page-contact .contact-partner__text p {
  margin: 0 0 20px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--mist);
}

.page-contact .contact-partner__text .btn {
  margin-top: 2px;
}

/* ---------- 收尾 ---------- */
.page-contact .contact-outro {
  border-top: 3px solid var(--line);
  background:
    radial-gradient(90% 120% at 0% 0%, rgba(47, 243, 224, .14), transparent 60%),
    linear-gradient(135deg, rgba(122, 92, 255, .16), rgba(10, 15, 44, .9));
}

.page-contact .contact-outro__text {
  max-width: 62ch;
  margin: 0;
  font-size: 16px;
  line-height: 1.85;
  color: var(--mist);
}

.page-contact .contact-outro__links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 20px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 620px) {
  .page-contact .contact-tempo {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 760px) {
  .page-contact .section {
    padding: 54px 0;
  }

  .page-contact .contact-hero {
    padding: 54px 0 62px;
  }

  .page-contact .contact-window {
    grid-template-columns: 1fr 1fr;
  }

  .page-contact .contact-checklist {
    grid-template-columns: 1fr 1fr;
  }
}

@media (min-width: 900px) {
  .page-contact .contact-partner {
    grid-template-columns: 1.05fr 1fr;
    align-items: start;
    gap: 30px;
  }

  .page-contact .channel-card {
    padding: 26px 22px 20px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .channel-card,
  .page-contact .channel-card::before,
  .page-contact .contact-hero__jump-item,
  .page-contact .contact-checklist__item,
  .page-contact .scene__plus::before,
  .page-contact .scene__plus::after {
    transition: none;
  }

  .page-contact .channel-card:hover,
  .page-contact .channel-card:focus-within,
  .page-contact .contact-checklist__item:hover,
  .page-contact .contact-hero__jump-item:active {
    transform: none;
  }
}