.page-contact {
  --pc-card: rgba(10, 38, 71, .72);
  --pc-hair: rgba(0, 229, 208, .26);
  --pc-soft: rgba(19, 74, 123, .45);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  padding: clamp(26px, 5vw, 54px) 0 clamp(22px, 4vw, 42px);
  background:
    radial-gradient(120% 90% at 88% 0%, rgba(0, 229, 208, .13), transparent 62%),
    radial-gradient(80% 70% at 6% 100%, rgba(255, 90, 54, .12), transparent 60%),
    linear-gradient(180deg, var(--pc-soft), transparent 78%);
  border-bottom: 2px solid var(--line);
}

.page-contact .contact-hero__grid {
  display: grid;
  gap: clamp(22px, 4vw, 40px);
  grid-template-columns: 1fr;
}

.page-contact .contact-hero h1 {
  margin: 14px 0 16px;
  font-size: clamp(30px, 6.4vw, 58px);
  font-weight: 300;
  line-height: 1.08;
  letter-spacing: -.01em;
  color: var(--white);
}

.page-contact .contact-hero .lede {
  max-width: 60ch;
  color: var(--mist);
}

.page-contact .hero-facts {
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
  border-top: 2px solid var(--line);
}

.page-contact .hero-fact {
  display: grid;
  gap: 6px;
  padding: 16px 18px;
  border-bottom: 1px solid var(--line);
  border-left: 2px solid var(--cyan);
  background: var(--pc-card);
}

.page-contact .hero-fact--hot {
  border-left-color: var(--orange);
}

.page-contact .hero-fact dt {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--mist);
}

.page-contact .hero-fact dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(14px, 2.6vw, 17px);
  color: var(--white);
  word-break: break-word;
}

.page-contact .hero-fact--hot dd {
  color: var(--orange);
  font-size: clamp(18px, 3.4vw, 24px);
}

/* ---------- 区块头部 ---------- */
.page-contact .section-head {
  max-width: 68ch;
  margin-bottom: clamp(20px, 3vw, 32px);
}

.page-contact .section-head h2 {
  margin: 10px 0 12px;
  font-size: clamp(24px, 4.2vw, 38px);
  font-weight: 400;
  line-height: 1.16;
  color: var(--white);
}

.page-contact .section-head__note {
  color: var(--mist);
  margin: 0;
}

.page-contact .section-head--ink h2 {
  color: var(--ink);
}

.page-contact .section-head--ink .section-head__note {
  color: #4a3a30;
}

/* ---------- 配图 ---------- */
.page-contact .figure {
  margin: 0 0 clamp(22px, 3.6vw, 34px);
}

.page-contact .figure--frame .figure__media {
  border: 2px solid var(--line);
  box-shadow: var(--shadow);
}

.page-contact .figure__caption {
  margin-top: 10px;
  font-size: 13px;
  color: var(--mist);
}

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

/* ---------- 渠道卡片 ---------- */
.page-contact .channel-grid {
  display: grid;
  gap: clamp(16px, 2.4vw, 22px);
  grid-template-columns: 1fr;
}

.page-contact .channel-card {
  position: relative;
  padding: 24px 22px 22px;
  background: var(--pc-card);
  border: 2px solid var(--line);
  box-shadow: var(--shadow);
  transition: transform .28s ease, box-shadow .28s ease, border-color .28s ease;
}

.page-contact .channel-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 4px;
  background: var(--cyan);
}

.page-contact .channel-card--hot::before {
  background: var(--orange);
}

.page-contact .channel-card:hover,
.page-contact .channel-card:focus-within {
  transform: translate(-3px, -3px);
  border-color: var(--cyan);
  box-shadow: 8px 8px 0 rgba(0, 0, 0, .42);
}

.page-contact .channel-card__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  margin-bottom: 16px;
  border: 2px solid var(--cyan);
  color: var(--cyan);
}

.page-contact .channel-card--hot .channel-card__icon {
  border-color: var(--orange);
  color: var(--orange);
}

.page-contact .channel-card__icon svg {
  width: 22px;
  height: 22px;
  display: block;
}

.page-contact .channel-card__title {
  margin: 0 0 10px;
  font-size: 19px;
  font-weight: 500;
  color: var(--white);
}

.page-contact .channel-card p {
  margin: 0 0 12px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--mist);
}

.page-contact .channel-card__mail,
.page-contact .channel-card__phone {
  font-family: var(--font-mono);
  font-size: clamp(14px, 2.7vw, 17px);
  color: var(--cyan) !important;
  word-break: break-all;
}

.page-contact .channel-card--hot .channel-card__phone {
  color: var(--orange) !important;
  font-size: clamp(20px, 3.6vw, 26px);
}

.page-contact .channel-card__meta {
  margin: 0;
  padding-top: 12px;
  border-top: 1px solid var(--line);
  font-size: 13px;
  color: var(--mist);
}

.page-contact .channel-card__meta a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--pc-hair);
}

.page-contact .channel-card__meta a:hover {
  border-bottom-color: var(--cyan);
}

/* ---------- 时间轴 ---------- */
.page-contact .timeline {
  position: relative;
  margin: 0;
  padding: 0 0 0 6px;
  list-style: none;
  border-left: 2px solid var(--line);
}

.page-contact .timeline__item {
  position: relative;
  padding: 0 0 28px 26px;
  outline: none;
}

.page-contact .timeline__item::before {
  content: "";
  position: absolute;
  left: -9px;
  top: 6px;
  width: 12px;
  height: 12px;
  background: var(--sea);
  border: 2px solid var(--cyan);
  transform: rotate(45deg);
  transition: background .25s ease, border-color .25s ease;
}

.page-contact .timeline__item--end::before {
  border-color: var(--orange);
}

.page-contact .timeline__item:hover::before,
.page-contact .timeline__item:focus-visible::before {
  background: var(--cyan);
}

.page-contact .timeline__item--end:hover::before,
.page-contact .timeline__item--end:focus-visible::before {
  background: var(--orange);
}

.page-contact .timeline__time {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(20px, 3.6vw, 28px);
  line-height: 1.1;
  color: var(--cyan);
}

.page-contact .timeline__item--end .timeline__time {
  color: var(--orange);
}

.page-contact .timeline__title {
  margin: 8px 0 6px;
  font-size: 17px;
  font-weight: 500;
  color: var(--white);
}

.page-contact .timeline__item p {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--mist);
}

.page-contact .timeline__pop {
  margin-top: 8px !important;
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  color: var(--amber) !important;
  font-size: 14px !important;
  transition: max-height .3s ease, opacity .3s ease, margin-top .3s ease;
}

.page-contact .timeline__item:hover .timeline__pop,
.page-contact .timeline__item:focus-within .timeline__pop,
.page-contact .timeline__item:focus-visible .timeline__pop {
  max-height: 8em;
  opacity: 1;
}

/* ---------- 检查清单 ---------- */
.page-contact .check-list {
  margin: 0 0 22px;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0;
  border-top: 2px solid var(--line);
}

.page-contact .check-list__item {
  display: grid;
  grid-template-columns: 26px 1fr;
  grid-template-areas:
    "box title"
    "box text";
  gap: 2px 12px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}

.page-contact .check-list__box {
  grid-area: box;
  width: 18px;
  height: 18px;
  margin-top: 3px;
  border: 2px solid var(--cyan);
  position: relative;
}

.page-contact .check-list__box::after {
  content: "";
  position: absolute;
  left: 3px;
  top: 3px;
  width: 8px;
  height: 8px;
  background: var(--cyan);
  opacity: .35;
}

.page-contact .check-list__item strong {
  grid-area: title;
  font-size: 16px;
  font-weight: 500;
  color: var(--white);
}

.page-contact .check-list__item span:last-child {
  grid-area: text;
  font-size: 15px;
  line-height: 1.7;
  color: var(--mist);
}

.page-contact .inline-note {
  margin: 0;
  padding-left: 16px;
  border-left: 2px solid var(--amber);
  font-size: 15px;
  line-height: 1.8;
  color: var(--mist);
}

.page-contact .inline-note a {
  color: var(--cyan);
  border-bottom: 1px solid var(--pc-hair);
  text-decoration: none;
}

/* ---------- 流程 ---------- */
.page-contact .flow {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0;
  border-top: 2px solid var(--ink);
}

.page-contact .flow__row {
  display: grid;
  grid-template-columns: 46px 1fr;
  gap: 14px;
  padding: 20px 0;
  border-bottom: 1px solid rgba(34, 24, 19, .28);
}

.page-contact .flow__num {
  font-family: var(--font-mono);
  font-size: 26px;
  line-height: 1;
  color: var(--cream);
  background: var(--ink);
  width: 42px;
  height: 42px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.page-contact .flow__row--end .flow__num {
  background: var(--orange);
  color: var(--white);
}

.page-contact .flow__row h3 {
  margin: 0 0 6px;
  font-size: 17px;
  font-weight: 600;
  color: var(--ink);
}

.page-contact .flow__row p {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: #4a3a30;
}

/* ---------- 合作 ---------- */
.page-contact .split > div:first-child h2 {
  margin: 10px 0 14px;
  font-size: clamp(22px, 4vw, 34px);
  font-weight: 400;
  color: var(--white);
}

.page-contact .split > div:first-child p {
  max-width: 52ch;
  color: var(--mist);
}

.page-contact .split > div:first-child a {
  color: var(--cyan);
  border-bottom: 1px solid var(--pc-hair);
  text-decoration: none;
}

.page-contact .coop-panel {
  padding: 22px;
  background: var(--pc-card);
  border: 2px solid var(--line);
  box-shadow: var(--shadow);
}

.page-contact .coop-panel__title {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--amber);
}

.page-contact .coop-panel__list {
  margin: 0 0 16px;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
}

.page-contact .coop-panel__list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 15px;
  line-height: 1.6;
  color: var(--white);
}

.page-contact .coop-panel__list .dot {
  flex: 0 0 auto;
  margin-top: 8px;
}

.page-contact .coop-panel__foot {
  margin: 0;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  font-size: 14px;
  line-height: 1.7;
  color: var(--mist);
}

.page-contact .coop-panel__foot a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--pc-hair);
}

/* ---------- 地址 ---------- */
.page-contact .addr {
  display: grid;
  gap: clamp(20px, 3vw, 30px);
  grid-template-columns: 1fr;
}

.page-contact .addr__meta {
  margin: 0 0 18px;
  display: grid;
  gap: 0;
  border-top: 2px solid var(--line);
}

.page-contact .addr__row {
  display: grid;
  gap: 4px;
  padding: 14px 0;
  border-bottom: 1px solid rgba(127, 166, 201, .3);
}

.page-contact .addr__row dt {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--mist);
}

.page-contact .addr__row dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 15px;
  color: var(--white);
  word-break: break-word;
}

.page-contact .addr__row:last-child dd {
  color: var(--mist);
  font-size: 14px;
}

.page-contact .addr__note {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--mist);
}

.page-contact .addr__figure {
  margin: 0;
}

.page-contact .addr__figure .figure__media {
  border: 2px solid var(--line);
  box-shadow: var(--shadow);
}

/* ---------- 延伸入口 ---------- */
.page-contact .more-links {
  display: grid;
  gap: 0;
  border-top: 2px solid var(--line);
  grid-template-columns: 1fr;
}

.page-contact .more-links__item {
  display: grid;
  gap: 6px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
  text-decoration: none;
  transition: padding-left .25s ease, border-color .25s ease;
}

.page-contact .more-links__item:hover,
.page-contact .more-links__item:focus-visible {
  padding-left: 12px;
  border-bottom-color: var(--cyan);
}

.page-contact .more-links__k {
  font-size: 16px;
  font-weight: 500;
  color: var(--white);
}

.page-contact .more-links__d {
  font-size: 14px;
  line-height: 1.65;
  color: var(--mist);
}

/* ---------- 窄屏兜底 ---------- */
@media (max-width: 420px) {
  .page-contact .channel-card__mail,
  .page-contact .channel-card__phone {
    font-size: 13px;
  }

  .page-contact .flow__row {
    grid-template-columns: 38px 1fr;
    gap: 10px;
  }

  .page-contact .flow__num {
    width: 36px;
    height: 36px;
    font-size: 21px;
  }
}

/* ---------- 平板及以上 ---------- */
@media (min-width: 720px) {
  .page-contact .contact-hero__grid {
    grid-template-columns: minmax(0, 1.35fr) minmax(280px, .95fr);
    align-items: start;
  }

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

  .page-contact .channel-card:first-child {
    grid-column: span 2;
  }

  .page-contact .more-links {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 28px;
  }

  .page-contact .addr {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
    align-items: start;
  }

  .page-contact .timeline__item {
    padding-left: 34px;
  }
}

/* ---------- 桌面 ---------- */
@media (min-width: 1080px) {
  .page-contact .channel-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .channel-card:first-child {
    grid-column: span 1;
  }

  .page-contact .channel-card:nth-child(2) {
    transform: translateY(-14px);
  }

  .page-contact .channel-card:nth-child(2):hover,
  .page-contact .channel-card:nth-child(2):focus-within {
    transform: translate(-3px, -17px);
  }

  .page-contact .timeline {
    max-width: 82ch;
  }

  .page-contact .split {
    align-items: start;
  }

  .page-contact .more-links {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-contact .more-links__item {
    border-right: 1px solid var(--line);
    padding-right: 18px;
  }

  .page-contact .more-links__item:last-child {
    border-right: 0;
    padding-right: 0;
  }
}

/* ---------- 动效收敛 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-contact .channel-card,
  .page-contact .timeline__pop,
  .page-contact .timeline__item::before,
  .page-contact .more-links__item {
    transition: none;
  }
}
</main>