.page-contact {
  --contact-gap: clamp(22px, 4vw, 44px);
  --contact-radius: 16px;
}

.page-contact__crumbs {
  padding-top: clamp(10px, 2.5vw, 22px);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  padding-top: clamp(18px, 3vw, 34px);
}

.page-contact .contact-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--contact-gap);
  align-items: start;
}

.page-contact .contact-hero__intro h1 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 7vw, 3.5rem);
  line-height: 1.1;
  letter-spacing: -0.015em;
  color: var(--ice);
  margin: 14px 0 18px;
  max-width: 20ch;
}

.page-contact .contact-hero__lead {
  color: var(--mist);
  line-height: 1.85;
  max-width: 56ch;
  margin: 0 0 22px;
}

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

.page-contact .contact-hero__points li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.9rem;
  color: var(--ice);
}

/* ---------- 主联系卡 ---------- */
.page-contact .contact-card {
  position: relative;
  padding: clamp(22px, 5vw, 34px);
  border: 1px solid var(--line);
  border-radius: 18px;
  background:
    radial-gradient(circle at 88% 4%, rgba(56, 232, 232, 0.14), transparent 58%),
    linear-gradient(158deg, rgba(18, 50, 77, 0.92), rgba(11, 31, 58, 0.96));
  backdrop-filter: blur(10px);
  box-shadow: 0 26px 64px -34px rgba(0, 0, 0, 0.95);
  transition: border-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}

.page-contact .contact-card::before {
  content: "";
  position: absolute;
  inset: 12px 14px auto;
  height: 1px;
  background: repeating-linear-gradient(90deg, var(--line) 0 14px, transparent 14px 24px);
  opacity: 0.9;
}

.page-contact .contact-card:hover,
.page-contact .contact-card:focus-within {
  border-color: var(--cyan);
  transform: translateY(-2px);
  box-shadow: 0 30px 74px -34px rgba(56, 232, 232, 0.32);
}

.page-contact .contact-card__label {
  margin: 8px 0 20px;
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  color: var(--amber);
  text-transform: uppercase;
}

.page-contact .contact-card__field {
  margin: 0 0 6px;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  color: var(--mist);
}

.page-contact .contact-card__mail {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(0.98rem, 3.4vw, 1.45rem);
  line-height: 1.4;
  color: var(--cyan);
  text-decoration: none;
  word-break: break-all;
  border-bottom: 1px solid rgba(56, 232, 232, 0.35);
  padding-bottom: 8px;
  transition: border-color 0.18s ease, color 0.18s ease;
}

.page-contact .contact-card__mail:hover,
.page-contact .contact-card__mail:focus-visible {
  color: var(--ice);
  border-bottom-color: var(--ice);
}

.page-contact .contact-card__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-top: 14px;
}

.page-contact .copy-btn {
  appearance: none;
  cursor: pointer;
  font-family: var(--font-body);
  font-size: 0.82rem;
  padding: 8px 16px;
  border-radius: 999px;
  border: 1px solid var(--teal);
  background: rgba(26, 167, 184, 0.12);
  color: var(--ice);
  transition: background 0.18s ease, border-color 0.18s ease, color 0.18s ease;
}

.page-contact .copy-btn:hover {
  background: rgba(56, 232, 232, 0.2);
  border-color: var(--cyan);
}

.page-contact .copy-btn:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
  box-shadow: 0 0 0 5px rgba(242, 184, 75, 0.28);
}

.page-contact .copy-feedback {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  color: var(--mint);
  min-height: 1em;
}

.page-contact .contact-card__divider {
  height: 1px;
  margin: 22px 0 18px;
  background: linear-gradient(90deg, var(--line), transparent);
}

.page-contact .contact-card__phone {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: clamp(1.7rem, 6.5vw, 2.3rem);
  letter-spacing: 0.02em;
  color: var(--amber);
  text-decoration: none;
  transition: color 0.18s ease, text-shadow 0.18s ease;
}

.page-contact .contact-card__phone:hover,
.page-contact .contact-card__phone:focus-visible {
  color: var(--ice);
  text-shadow: 0 0 22px rgba(242, 184, 75, 0.45);
}

.page-contact .contact-card__status {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0;
  font-size: 0.82rem;
  color: var(--mist);
}

/* ---------- 联系信息一览 ---------- */
.page-contact .contact-index__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: 14px;
  overflow: hidden;
}

.page-contact .contact-index__list li {
  display: grid;
  gap: 8px;
  padding: 16px 18px;
  background: var(--deep);
  min-width: 0;
}

.page-contact .contact-index__key {
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  color: var(--cyan);
}

.page-contact .contact-index__value {
  font-size: 0.9rem;
  line-height: 1.55;
  color: var(--ice);
  word-break: break-word;
}

/* ---------- 路由视觉 ---------- */
.page-contact .contact-route-visual {
  margin-top: clamp(26px, 5vw, 46px);
}

.page-contact .contact-route-visual img {
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- 何时联系 ---------- */
.page-contact .contact-when__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
  margin-top: clamp(20px, 3vw, 30px);
}

.page-contact .when-card {
  position: relative;
  padding: 22px 22px 24px;
  border: 1px solid var(--line);
  border-radius: var(--contact-radius);
  background: var(--deep);
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.page-contact .when-card:hover {
  border-color: var(--teal);
  transform: translateY(-2px);
}

.page-contact .when-card__num {
  display: inline-block;
  font-size: 0.74rem;
  letter-spacing: 0.16em;
  color: var(--amber);
  border: 1px solid rgba(242, 184, 75, 0.4);
  border-radius: 6px;
  padding: 2px 8px;
  margin-bottom: 14px;
}

.page-contact .when-card__title {
  margin: 0 0 10px;
  font-size: 1.06rem;
  line-height: 1.45;
  color: var(--ice);
}

.page-contact .when-card p {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.8;
  color: var(--mist);
}

/* ---------- 邮件清单 ---------- */
.page-contact .contact-mail__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--contact-gap);
  align-items: start;
}

.page-contact .contact-mail__intro figure {
  margin: clamp(18px, 3vw, 26px) 0 0;
}

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

.page-contact .contact-mail__hint {
  margin: 0 0 14px;
  font-size: 0.86rem;
  letter-spacing: 0.04em;
  color: var(--cyan);
}

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

.page-contact .check-list li {
  position: relative;
}

.page-contact .check-list input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
}

.page-contact .check-list label {
  display: grid;
  grid-template-columns: 20px auto minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--deep);
  cursor: pointer;
  font-size: 0.92rem;
  line-height: 1.72;
  color: var(--mist);
  transition: border-color 0.18s ease, background 0.18s ease;
}

.page-contact .check-list label::before {
  content: "";
  width: 18px;
  height: 18px;
  margin-top: 3px;
  border: 1px solid var(--teal);
  border-radius: 5px;
  background: rgba(6, 17, 31, 0.8);
  transition: background 0.18s ease, border-color 0.18s ease, box-shadow 0.18s ease;
}

.page-contact .check-list label:hover {
  border-color: var(--teal);
}

.page-contact .check-list__num {
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  color: var(--amber);
  padding-top: 4px;
}

.page-contact .check-list__body strong {
  display: block;
  color: var(--ice);
  font-weight: 600;
  margin-bottom: 2px;
}

.page-contact .check-list input:checked + label {
  border-color: rgba(91, 228, 155, 0.6);
  background: rgba(91, 228, 155, 0.08);
}

.page-contact .check-list input:checked + label::before {
  background: var(--mint);
  border-color: var(--mint);
  box-shadow: inset 0 0 0 3px var(--deep);
}

.page-contact .check-list input:focus-visible + label {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

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

/* ---------- 电话与回复 ---------- */
.page-contact .contact-phone__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
  margin-top: clamp(18px, 3vw, 28px);
}

.page-contact .phone-card {
  padding: clamp(20px, 4vw, 28px);
  border-radius: var(--contact-radius);
  border: 1px solid var(--line);
}

.page-contact .phone-card--solid {
  background: var(--deep);
}

.page-contact .phone-card--glass {
  background: linear-gradient(155deg, rgba(18, 50, 77, 0.86), rgba(11, 31, 58, 0.94));
  backdrop-filter: blur(8px);
}

.page-contact .phone-card__title {
  margin: 0 0 14px;
  font-size: 1.1rem;
  line-height: 1.45;
  color: var(--ice);
}

.page-contact .phone-card__list {
  list-style: none;
  margin: 0 0 18px;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-contact .phone-card__list li {
  position: relative;
  padding-left: 18px;
  font-size: 0.92rem;
  line-height: 1.78;
  color: var(--mist);
}

.page-contact .phone-card__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.7em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--cyan);
}

.page-contact .phone-card__list a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-contact .phone-card__list a:hover,
.page-contact .phone-card__list a:focus-visible {
  color: var(--ice);
}

.page-contact .phone-card__list .mono {
  color: var(--ice);
  word-break: break-all;
}

.page-contact .phone-card__hint {
  margin: 0 0 18px;
  padding: 12px 14px;
  border-left: 2px solid var(--amber);
  background: rgba(242, 184, 75, 0.08);
  font-size: 0.86rem;
  line-height: 1.7;
  color: var(--ice);
}

/* ---------- 沟通路径 ---------- */
.page-contact .flow-track {
  list-style: none;
  margin: clamp(20px, 3vw, 30px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}

.page-contact .flow-track__item {
  position: relative;
  padding: 18px 18px 18px 20px;
  border-left: 1px solid var(--line);
  background: linear-gradient(90deg, rgba(23, 59, 94, 0.35), transparent 82%);
  border-radius: 0 12px 12px 0;
  transition: border-color 0.2s ease, background 0.2s ease;
}

.page-contact .flow-track__item:hover {
  border-left-color: var(--cyan);
  background: linear-gradient(90deg, rgba(56, 232, 232, 0.12), transparent 82%);
}

.page-contact .flow-track__num {
  display: block;
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  color: var(--amber);
  margin-bottom: 8px;
}

.page-contact .flow-track__item h3 {
  margin: 0 0 8px;
  font-size: 1rem;
  color: var(--ice);
}

.page-contact .flow-track__item p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.75;
  color: var(--mist);
}

/* ---------- 自助入口 ---------- */
.page-contact .self-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
  margin-top: clamp(20px, 3vw, 30px);
}

.page-contact .self-card {
  display: grid;
  gap: 10px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: var(--contact-radius);
  background: var(--deep);
  color: var(--ice);
  text-decoration: none;
  transition: border-color 0.2s ease, transform 0.2s ease, background 0.2s ease;
}

.page-contact .self-card:hover {
  border-color: var(--cyan);
  transform: translateY(-2px);
  background: linear-gradient(160deg, rgba(26, 167, 184, 0.16), var(--deep) 70%);
}

.page-contact .self-card:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

.page-contact .self-card__label {
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  color: var(--cyan);
}

.page-contact .self-card__text {
  font-size: 0.92rem;
  line-height: 1.78;
  color: var(--mist);
}

/* ---------- 桌面布局 ---------- */
@media (min-width: 900px) {
  .page-contact .contact-hero__grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    gap: clamp(36px, 5vw, 68px);
  }

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

  .page-contact .contact-when__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
  }

  .page-contact .contact-mail__grid {
    grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
    gap: clamp(32px, 5vw, 60px);
  }

  .page-contact .contact-phone__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
  }

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

  .page-contact .flow-track__item {
    border-left: 0;
    border-top: 1px solid var(--line);
    border-radius: 0 0 12px 12px;
    padding: 20px 20px 22px;
    background: linear-gradient(180deg, rgba(23, 59, 94, 0.38), transparent 88%);
  }

  .page-contact .flow-track__item:hover {
    border-left-color: transparent;
    border-top-color: var(--cyan);
    background: linear-gradient(180deg, rgba(56, 232, 232, 0.14), transparent 88%);
  }

  .page-contact .flow-track__item + .flow-track__item {
    border-left: 1px solid transparent;
  }

  .page-contact .self-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .contact-card,
  .page-contact .when-card,
  .page-contact .self-card,
  .page-contact .flow-track__item,
  .page-contact .copy-btn {
    transition: none;
  }

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