.page-contact {
  --pc-line: rgba(183, 196, 212, .2);
  --pc-line-strong: rgba(183, 196, 212, .38);
  --pc-gap: 16px;
}

/* ---------- 页面位置提示 ---------- */
.page-contact .breadcrumb {
  margin-bottom: clamp(22px, 3.4vw, 38px);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  overflow: hidden;
  padding-top: clamp(30px, 5vw, 62px);
}

.page-contact .contact-hero::before {
  content: "";
  position: absolute;
  right: -12%;
  top: 12%;
  width: 52vw;
  height: 52vw;
  max-width: 580px;
  max-height: 580px;
  border-radius: 50%;
  background: radial-gradient(circle at 34% 34%, rgba(53, 232, 210, .17), transparent 68%);
  pointer-events: none;
}

.page-contact .contact-hero > .container {
  position: relative;
  z-index: 1;
}

.page-contact .contact-hero__title {
  font-size: clamp(2.15rem, 7.6vw, 4.6rem);
  line-height: 1.06;
  letter-spacing: -.01em;
  max-width: 18ch;
  margin-bottom: clamp(16px, 2.4vw, 26px);
}

.page-contact .contact-hero__lead {
  max-width: 60ch;
  color: var(--mist-300);
}

/* ---------- 三张联系卡 ---------- */
.page-contact .contact-cards {
  margin-top: clamp(30px, 5vw, 54px);
  display: grid;
  gap: var(--pc-gap);
  grid-template-columns: 1fr;
}

.page-contact .contact-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 22px 20px 24px;
  background: var(--glass);
  border: 1px solid var(--pc-line);
  border-radius: var(--radius-lg);
  transition: border-color .18s var(--ease), transform .18s var(--ease), box-shadow .18s var(--ease);
}

.page-contact .contact-card:hover,
.page-contact .contact-card:focus-within {
  border-color: var(--cyan-400);
  transform: translateY(-2px);
  box-shadow: var(--shadow-float);
}

.page-contact .contact-card__label {
  font-size: .72rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--cyan-400);
}

.page-contact .contact-card__value {
  font-size: clamp(.95rem, 3.4vw, 1.28rem);
  line-height: 1.5;
  color: var(--paper-50);
  overflow-wrap: anywhere;
  user-select: all;
}

.page-contact .contact-card__value--sm {
  font-family: var(--font-head);
  font-weight: 700;
  letter-spacing: -.005em;
  font-size: clamp(1.15rem, 4vw, 1.45rem);
}

.page-contact .contact-card__note {
  color: var(--mist-300);
  font-size: .92rem;
  line-height: 1.8;
}

.page-contact .contact-card__meta {
  margin-top: auto;
  padding-top: 10px;
  border-top: 1px solid var(--pc-line);
  font-size: .78rem;
  letter-spacing: .06em;
  color: var(--stone-500);
}

/* ---------- 分流章节 ---------- */
.page-contact .contact-reasons__title {
  font-size: clamp(1.75rem, 5.2vw, 3rem);
  line-height: 1.1;
  letter-spacing: -.01em;
  max-width: 20ch;
}

.page-contact .contact-reasons__lead {
  max-width: 56ch;
  color: var(--ink-on-paper);
  opacity: .86;
}

.page-contact .contact-reasons__banner {
  margin: clamp(24px, 4vw, 42px) 0 clamp(30px, 4.4vw, 52px);
  aspect-ratio: 3 / 2;
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.page-contact .contact-reasons__banner img,
.page-contact .place-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.page-contact .reason-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--pc-gap);
}

.page-contact .contact-reason {
  background: var(--paper-100);
  border: 1px solid rgba(51, 64, 79, .16);
  border-left: 4px solid var(--orange-500);
  border-radius: var(--radius-md);
  padding: 2px 18px 6px;
  transition: transform .18s var(--ease), box-shadow .18s var(--ease), border-color .18s var(--ease);
}

.page-contact .contact-reason:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-float);
  border-color: rgba(51, 64, 79, .3);
  border-left-color: var(--orange-500);
}

.page-contact .contact-reason__head {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 15px 0;
  cursor: pointer;
  list-style: none;
}

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

.page-contact .contact-reason__head::after {
  content: "+";
  font-family: var(--font-mono);
  font-size: 1.05rem;
  line-height: 1;
  color: var(--cyan-700);
}

.page-contact .contact-reason[open] .contact-reason__head::after {
  content: "–";
}

.page-contact .contact-reason__name {
  flex: 1;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(1.12rem, 2.6vw, 1.42rem);
  letter-spacing: -.01em;
  color: var(--ink-on-paper);
}

.page-contact .contact-reason__tag {
  font-size: .7rem;
  letter-spacing: .1em;
  padding: 3px 10px;
  border-radius: var(--radius-pill);
  background: rgba(14, 142, 133, .12);
  color: var(--cyan-700);
  white-space: nowrap;
}

.page-contact .contact-reason__body {
  padding-bottom: 14px;
}

.page-contact .contact-reason__body p {
  color: var(--ink-on-paper);
  font-size: .94rem;
  line-height: 1.8;
}

.page-contact .contact-reason__foot {
  margin-top: 12px;
  font-size: .76rem;
  letter-spacing: .02em;
  color: var(--stone-500);
  overflow-wrap: anywhere;
}

.page-contact .contact-list {
  margin: 10px 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .contact-list li {
  position: relative;
  padding: 4px 0 4px 18px;
  font-size: .92rem;
  line-height: 1.75;
  color: var(--ink-on-paper);
}

.page-contact .contact-list li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 14px;
  width: 7px;
  height: 2px;
  background: var(--cyan-700);
}

/* ---------- 邮件怎么写 ---------- */
.page-contact .write-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(18px, 3vw, 38px);
}

.page-contact .write-aside__note {
  margin-top: 12px;
  font-size: .78rem;
  letter-spacing: .08em;
  color: var(--mist-300);
}

.page-contact .contact-write__title {
  font-size: clamp(1.7rem, 5vw, 2.85rem);
  line-height: 1.1;
  letter-spacing: -.01em;
  max-width: 20ch;
}

.page-contact .contact-write__lead {
  max-width: 56ch;
  margin-top: 14px;
  color: var(--mist-300);
}

.page-contact .write-panel {
  margin: clamp(22px, 3.2vw, 34px) 0;
  padding: 20px 20px 22px;
  border: 1px dashed var(--pc-line-strong);
  border-radius: var(--radius-md);
  background: rgba(53, 232, 210, .06);
}

.page-contact .write-panel__label {
  font-size: .72rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--cyan-400);
  margin-bottom: 10px;
}

.page-contact .write-panel__format {
  font-size: clamp(.86rem, 2.6vw, 1.12rem);
  line-height: 1.6;
  color: var(--paper-50);
  overflow-wrap: anywhere;
}

.page-contact .write-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  margin: 0 0 clamp(20px, 3vw, 30px);
  padding: 0;
  list-style: none;
}

.page-contact .write-list li {
  position: relative;
  padding: 13px 16px 13px 38px;
  border: 1px solid var(--pc-line);
  border-radius: var(--radius-sm);
  color: var(--mist-300);
  font-size: .92rem;
  line-height: 1.75;
  transition: border-color .16s var(--ease), background-color .16s var(--ease);
}

.page-contact .write-list li:hover {
  border-color: var(--cyan-400);
  background: rgba(53, 232, 210, .05);
}

.page-contact .write-list li::before {
  content: "";
  position: absolute;
  left: 16px;
  top: 21px;
  width: 8px;
  height: 8px;
  border: 1px solid var(--cyan-400);
  transform: rotate(45deg);
}

.page-contact .contact-safe {
  padding-left: 16px;
  border-left: 3px solid var(--orange-500);
  color: var(--mist-300);
  font-size: .93rem;
  line-height: 1.85;
}

/* ---------- 重庆联系点 ---------- */
.page-contact .place-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 44px);
}

.page-contact .contact-place__title {
  font-size: clamp(1.75rem, 5.2vw, 3rem);
  line-height: 1.1;
  letter-spacing: -.01em;
}

.page-contact .contact-place__lead {
  max-width: 52ch;
  margin-top: 14px;
  color: var(--ink-on-paper);
  opacity: .86;
}

.page-contact .place-address {
  margin-top: clamp(20px, 3vw, 30px);
  padding: 22px 22px 24px;
  border: 1px solid rgba(51, 64, 79, .22);
  border-radius: var(--radius-md);
  background: var(--paper-100);
}

.page-contact .place-address__label {
  font-size: .72rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--cyan-700);
  margin-bottom: 8px;
}

.page-contact .place-address__value {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(1.2rem, 3.4vw, 1.62rem);
  letter-spacing: -.01em;
  color: var(--ink-on-paper);
  margin-bottom: 12px;
}

.page-contact .place-note {
  color: var(--ink-on-paper);
  font-size: .92rem;
  line-height: 1.85;
}

.page-contact .place-media {
  margin: 0;
  aspect-ratio: 14 / 9;
  border-radius: var(--radius-lg);
  overflow: hidden;
}

/* ---------- 提交之后 ---------- */
.page-contact .contact-flow__title {
  font-size: clamp(1.75rem, 5.2vw, 3rem);
  line-height: 1.1;
  letter-spacing: -.01em;
  max-width: 22ch;
}

.page-contact .contact-flow__lead {
  max-width: 52ch;
  margin-top: 14px;
  color: var(--mist-300);
}

.page-contact .flow-track {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin: clamp(28px, 4vw, 48px) 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .flow-step {
  position: relative;
  padding: 24px 20px 26px;
  border-top: 2px solid var(--cyan-400);
  border-radius: 0 0 var(--radius-md) var(--radius-md);
  background: rgba(16, 48, 79, .58);
  transition: transform .18s var(--ease), background-color .18s var(--ease);
}

.page-contact .flow-step:hover {
  transform: translateY(-2px);
  background: rgba(22, 64, 102, .72);
}

.page-contact .flow-step__num {
  display: block;
  font-size: .74rem;
  letter-spacing: .16em;
  color: var(--orange-500);
  margin-bottom: 12px;
}

.page-contact .flow-step__title {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(1.15rem, 2.8vw, 1.5rem);
  letter-spacing: -.01em;
  color: var(--paper-50);
  margin-bottom: 10px;
}

.page-contact .flow-step p {
  color: var(--mist-300);
  font-size: .94rem;
  line-height: 1.85;
}

.page-contact .contact-links {
  margin-top: clamp(30px, 4.4vw, 48px);
  padding-top: 22px;
  border-top: 1px solid var(--pc-line);
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 20px;
  color: var(--mist-300);
  font-size: .93rem;
}

.page-contact .contact-links p {
  margin: 0;
}

.page-contact .contact-links a + a {
  margin-left: 18px;
}

/* ---------- 中等屏幕 ---------- */
@media (min-width: 720px) {
  .page-contact .write-list {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ---------- 宽屏 ---------- */
@media (min-width: 900px) {
  .page-contact .contact-cards {
    grid-template-columns: repeat(12, 1fr);
    gap: 20px;
    align-items: start;
  }

  .page-contact .contact-card--mail {
    grid-column: 1 / span 5;
  }

  .page-contact .contact-card--phone {
    grid-column: 6 / span 4;
    margin-top: 30px;
  }

  .page-contact .contact-card--addr {
    grid-column: 10 / span 3;
    margin-top: 58px;
  }

  .page-contact .reason-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 22px 26px;
  }

  .page-contact .reason-grid > :nth-child(1) { margin-top: 0; }
  .page-contact .reason-grid > :nth-child(2) { margin-top: 42px; }
  .page-contact .reason-grid > :nth-child(3) { margin-top: 16px; }
  .page-contact .reason-grid > :nth-child(4) { margin-top: 58px; }

  .page-contact .write-grid {
    grid-template-columns: 3fr 9fr;
    align-items: start;
  }

  .page-contact .place-grid {
    grid-template-columns: 7fr 5fr;
    align-items: center;
  }

  .page-contact .flow-track {
    grid-template-columns: repeat(3, 1fr);
    gap: 22px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .contact-card,
  .page-contact .contact-reason,
  .page-contact .write-list li,
  .page-contact .flow-step {
    transition: none;
  }

  .page-contact .contact-card:hover,
  .page-contact .contact-reason:hover,
  .page-contact .flow-step:hover {
    transform: none;
  }
}