.page-contact {
  --contact-glass: rgba(248, 250, 251, .9);
  --contact-line: rgba(156, 207, 227, .55);
  --contact-shadow: 0 24px 58px -38px rgba(11, 27, 43, .62);
  background: var(--salt);
  color: var(--text);
  overflow-x: hidden;
}

/* ---------- 面包屑 ---------- */
.page-contact .breadcrumb {
  padding-top: clamp(1rem, 4vw, 1.75rem);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  padding: clamp(2.25rem, 8vw, 5.5rem) 0 clamp(1.75rem, 5vw, 3rem);
}

.page-contact .contact-hero__inner {
  max-width: var(--shell-max);
}

.page-contact .contact-hero__pin {
  display: inline-flex;
  align-items: center;
  gap: .6rem;
  margin: 0 0 1.4rem;
  font-family: var(--font-mono);
  font-size: .75rem;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--lake-dark);
}

.page-contact .contact-hero__dot {
  width: .55rem;
  height: .55rem;
  border-radius: 50%;
  background: var(--flag);
  box-shadow: 0 0 0 5px rgba(232, 99, 26, .15);
  flex: none;
}

.page-contact .contact-hero__title {
  margin: 0 0 1.3rem;
  max-width: 20ch;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2.05rem, 7.4vw, 4.1rem);
  line-height: 1.06;
  letter-spacing: -.02em;
  color: var(--ink-900);
}

.page-contact .contact-hero__lede {
  margin: 0 0 .9rem;
  max-width: 36rem;
  font-size: clamp(1rem, 2.1vw, 1.125rem);
  line-height: 1.75;
  color: var(--text);
}

.page-contact .contact-hero__hint {
  margin: 0;
  font-family: var(--font-mono);
  font-size: .8125rem;
  letter-spacing: .04em;
  color: var(--ink-700);
}

.page-contact .contact-hero__trace {
  position: relative;
  height: 2px;
  margin: clamp(2rem, 6vw, 3.5rem) var(--gutter) 0;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--lake) 0%, var(--lake-300) 48%, var(--flag) 100%);
}

.page-contact .contact-hero__trace span {
  position: absolute;
  right: -.15rem;
  top: 50%;
  width: .7rem;
  height: .7rem;
  border-radius: 50%;
  background: var(--flag);
  transform: translateY(-50%);
}

/* ---------- 三条联系路径 ---------- */
.page-contact .contact-channels {
  position: relative;
  padding: clamp(2.75rem, 8vw, 5.25rem) 0 clamp(3rem, 9vw, 6rem);
  overflow: hidden;
}

.page-contact .contact-channels__backdrop {
  position: absolute;
  inset: 0;
  z-index: 0;
}

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

.page-contact .contact-channels__backdrop::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(158deg, rgba(11, 27, 43, .9) 0%, rgba(20, 57, 90, .8) 52%, rgba(11, 27, 43, .93) 100%);
}

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

.page-contact .contact-channels .section-title {
  color: var(--salt);
}

.page-contact .contact-channels .section-lede {
  color: rgba(248, 250, 251, .8);
}

.page-contact .contact-channels .legend-tag {
  color: var(--lake-300);
}

.page-contact .contact-cards {
  display: grid;
  gap: 1.1rem;
  margin-top: clamp(1.75rem, 4vw, 2.75rem);
}

.page-contact .contact-card {
  position: relative;
  padding: 1.5rem 1.35rem 1.65rem;
  border: 1px solid rgba(156, 207, 227, .42);
  border-radius: var(--radius-m);
  background: var(--contact-glass);
  box-shadow: var(--contact-shadow);
  backdrop-filter: blur(12px);
  transition: transform .4s var(--ease), box-shadow .4s var(--ease), border-color .4s var(--ease);
}

.page-contact .contact-card::before {
  content: "";
  position: absolute;
  left: 1.35rem;
  top: 0;
  width: 2.6rem;
  height: 3px;
  border-radius: 0 0 3px 3px;
  background: var(--lake);
}

.page-contact .contact-card--mail::before {
  background: var(--flag);
}

.page-contact .contact-card .card-index {
  margin: 0 0 .5rem;
  color: var(--lake-dark);
}

.page-contact .contact-card--mail .card-index {
  color: var(--amber-ink);
}

.page-contact .contact-card .card-title {
  margin: 0 0 .75rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: -.01em;
  color: var(--ink-900);
}

.page-contact .contact-card__value {
  display: block;
  margin: 0 0 .9rem;
  font-family: var(--font-body);
  font-size: 1.0625rem;
  font-weight: 600;
  line-height: 1.5;
  color: var(--lake-dark);
  text-decoration: none;
  overflow-wrap: anywhere;
}

.page-contact .contact-card__value--mono {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  letter-spacing: .02em;
  color: var(--ink-900);
}

.page-contact .contact-card__value:hover {
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-contact .contact-card .card-text {
  margin: 0 0 1.1rem;
  font-size: .9375rem;
  line-height: 1.72;
  color: var(--text);
}

.page-contact .contact-card__fit {
  margin: 0;
  padding-top: .85rem;
  border-top: 1px dashed var(--contact-line);
  font-family: var(--font-mono);
  font-size: .75rem;
  letter-spacing: .04em;
  line-height: 1.7;
  color: var(--ink-700);
  opacity: .78;
  transition: opacity .35s var(--ease);
}

.page-contact .contact-card:hover,
.page-contact .contact-card:focus-within {
  transform: translateY(-6px);
  border-color: var(--lake);
  box-shadow: 0 34px 68px -40px rgba(11, 27, 43, .78);
}

.page-contact .contact-card:hover .contact-card__fit,
.page-contact .contact-card:focus-within .contact-card__fit {
  opacity: 1;
}

/* ---------- 先查目录 ---------- */
.page-contact .contact-selfhelp {
  position: relative;
}

.page-contact .selfhelp-list {
  list-style: none;
  margin: clamp(1.6rem, 4vw, 2.4rem) 0 0;
  padding: 0;
  border-top: 1px solid var(--contact-line);
}

.page-contact .selfhelp-list li {
  display: grid;
  grid-template-columns: 2.4rem 1fr;
  gap: .9rem;
  padding: 1.25rem 0;
  border-bottom: 1px solid var(--contact-line);
}

.page-contact .selfhelp-num {
  font-family: var(--font-mono);
  font-size: 1.125rem;
  font-weight: 600;
  line-height: 1.4;
  color: var(--amber-ink);
  letter-spacing: .02em;
}

.page-contact .selfhelp-title {
  margin: 0 0 .35rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.0625rem;
  line-height: 1.4;
  color: var(--ink-900);
}

.page-contact .selfhelp-title a {
  color: inherit;
  text-decoration: none;
  border-bottom: 2px solid transparent;
  transition: border-color .3s var(--ease), color .3s var(--ease);
}

.page-contact .selfhelp-title a:hover {
  color: var(--lake-dark);
  border-bottom-color: var(--flag);
}

.page-contact .selfhelp-body p {
  margin: 0;
  max-width: 40rem;
  font-size: .9375rem;
  line-height: 1.75;
  color: var(--text);
}

/* ---------- 处理流程时间轴 ---------- */
.page-contact .contact-flow {
  position: relative;
}

.page-contact .flow-timeline {
  position: relative;
  list-style: none;
  margin: clamp(1.75rem, 4vw, 2.6rem) 0 0;
  padding: 0 0 0 1.6rem;
}

.page-contact .flow-timeline::before {
  content: "";
  position: absolute;
  left: .28rem;
  top: .6rem;
  bottom: 1.2rem;
  width: 2px;
  background-image: linear-gradient(180deg, var(--lake-300) 0 7px, transparent 7px 14px);
  background-size: 2px 14px;
}

.page-contact .flow-step {
  position: relative;
  padding-bottom: 1.9rem;
}

.page-contact .flow-step:last-child {
  padding-bottom: 0;
}

.page-contact .flow-step::before {
  content: "";
  position: absolute;
  left: -1.44rem;
  top: .5rem;
  width: .68rem;
  height: .68rem;
  border-radius: 50%;
  background: var(--salt);
  border: 2px solid var(--lake);
}

.page-contact .flow-step:last-child::before {
  border-color: var(--flag);
  background: var(--flag);
}

.page-contact .flow-num {
  display: block;
  margin-bottom: .35rem;
  font-family: var(--font-mono);
  font-size: 2rem;
  font-weight: 600;
  line-height: 1;
  letter-spacing: -.02em;
  color: var(--lake);
}

.page-contact .flow-step:last-child .flow-num {
  color: var(--flag);
}

.page-contact .flow-title {
  margin: 0 0 .45rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.125rem;
  line-height: 1.4;
  color: var(--ink-900);
}

.page-contact .flow-body p {
  margin: 0 0 .6rem;
  max-width: 38rem;
  font-size: .9375rem;
  line-height: 1.75;
  color: var(--text);
}

.page-contact .flow-meta {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: .75rem;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--ink-700);
  padding: .2rem .6rem;
  border: 1px solid var(--contact-line);
  border-radius: var(--radius-pill);
  background: rgba(223, 231, 236, .55);
}

/* ---------- 常见咨询类型 ---------- */
.page-contact .contact-types__grid {
  display: grid;
  gap: 1.6rem;
}

.page-contact .contact-types__head .section-lede {
  margin-bottom: .75rem;
}

.page-contact .contact-types__note {
  margin: 0;
  font-family: var(--font-mono);
  font-size: .75rem;
  letter-spacing: .04em;
  color: var(--ink-700);
}

.page-contact .qa-folds {
  border-top: 1px solid var(--contact-line);
}

.page-contact .qa-folds .fold {
  border-bottom: 1px solid var(--contact-line);
}

.page-contact .qa-folds .fold-index {
  color: var(--amber-ink);
}

.page-contact .qa-folds .fold-inner p {
  margin: 0;
  max-width: 40rem;
  font-size: .9375rem;
  line-height: 1.78;
  color: var(--text);
}

/* ---------- 咨询前准备清单 ---------- */
.page-contact .prep-grid {
  display: grid;
  gap: 2rem;
  margin-top: clamp(1.6rem, 4vw, 2.4rem);
}

.page-contact .prep-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: .85rem;
}

.page-contact .prep-item {
  position: relative;
}

.page-contact .prep-check {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.page-contact .prep-label {
  display: grid;
  grid-template-columns: 1.3rem 2.2rem 1fr;
  align-items: start;
  gap: .75rem;
  padding: 1.1rem 1.1rem 1.15rem;
  border: 1px solid var(--contact-line);
  border-radius: var(--radius-s);
  background: var(--salt);
  cursor: pointer;
  transition: border-color .3s var(--ease), background-color .3s var(--ease), transform .3s var(--ease);
}

.page-contact .prep-label:hover {
  border-color: var(--lake-300);
  transform: translateY(-2px);
}

.page-contact .prep-box {
  position: relative;
  display: block;
  width: 1.2rem;
  height: 1.2rem;
  margin-top: .15rem;
  border: 1.5px solid var(--lake-300);
  border-radius: 4px;
  background: var(--salt);
  transition: border-color .25s var(--ease), background-color .25s var(--ease);
}

.page-contact .prep-box::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 47%;
  width: .3rem;
  height: .56rem;
  border-right: 2px solid transparent;
  border-bottom: 2px solid transparent;
  transform: translate(-50%, -58%) rotate(45deg);
  transition: border-color .25s var(--ease);
}

.page-contact .prep-idx {
  font-family: var(--font-mono);
  font-size: 1.0625rem;
  font-weight: 600;
  line-height: 1.35;
  color: var(--ink-700);
  letter-spacing: .02em;
}

.page-contact .prep-content {
  display: block;
}

.page-contact .prep-title {
  display: block;
  margin-bottom: .3rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
  line-height: 1.4;
  color: var(--ink-900);
  transition: color .25s var(--ease);
}

.page-contact .prep-text {
  display: block;
  font-size: .9rem;
  line-height: 1.7;
  color: var(--text);
}

.page-contact .prep-check:focus-visible + .prep-label .prep-box {
  outline: 2px solid var(--lake);
  outline-offset: 3px;
}

.page-contact .prep-check:checked + .prep-label {
  border-color: var(--flag);
  background: rgba(232, 99, 26, .05);
}

.page-contact .prep-check:checked + .prep-label .prep-box {
  border-color: var(--flag);
  background: rgba(232, 99, 26, .12);
}

.page-contact .prep-check:checked + .prep-label .prep-box::after {
  border-right-color: var(--flag);
  border-bottom-color: var(--flag);
}

.page-contact .prep-check:checked + .prep-label .prep-title {
  color: var(--amber-ink);
}

.page-contact .prep-figure {
  margin: 0;
}

.page-contact .prep-figure .media-frame {
  border-radius: var(--radius-m);
  overflow: hidden;
}

.page-contact .prep-caption {
  margin-top: .75rem;
  font-family: var(--font-mono);
  font-size: .75rem;
  letter-spacing: .04em;
  line-height: 1.7;
  color: var(--ink-700);
}

/* ---------- 结尾行动区 ---------- */
.page-contact .contact-close {
  position: relative;
}

.page-contact .contact-close__inner {
  max-width: 44rem;
}

.page-contact .contact-close .section-title {
  color: var(--salt);
  margin-bottom: 1rem;
}

.page-contact .contact-close__text {
  margin: 0 0 1.75rem;
  font-size: 1rem;
  line-height: 1.8;
  color: rgba(248, 250, 251, .82);
  overflow-wrap: anywhere;
}

.page-contact .contact-close__actions {
  display: flex;
  flex-wrap: wrap;
  gap: .85rem;
}

/* ---------- 中等屏幕 ---------- */
@media (min-width: 700px) {
  .page-contact .selfhelp-list li {
    grid-template-columns: 3rem 1fr;
    gap: 1.2rem;
    padding: 1.5rem 0;
  }

  .page-contact .prep-label {
    grid-template-columns: 1.4rem 2.4rem 1fr;
    gap: 1rem;
    padding: 1.25rem 1.35rem 1.3rem;
  }
}

/* ---------- 桌面 ---------- */
@media (min-width: 900px) {
  .page-contact .contact-cards {
    grid-template-columns: 1.14fr .98fr .88fr;
    align-items: start;
    gap: 1.35rem;
  }

  .page-contact .contact-card--phone {
    margin-top: 2.25rem;
  }

  .page-contact .contact-card--address {
    margin-top: 4.5rem;
  }

  .page-contact .contact-types__grid {
    grid-template-columns: 4fr 8fr;
    gap: 3rem;
    align-items: start;
  }

  .page-contact .prep-grid {
    grid-template-columns: 1.3fr .8fr;
    gap: 3rem;
    align-items: start;
  }

  .page-contact .flow-timeline {
    padding-left: 2rem;
  }

  .page-contact .flow-step::before {
    left: -1.84rem;
  }
}

@media (min-width: 1100px) {
  .page-contact .contact-hero__inner {
    padding-right: 22%;
  }

  .page-contact .selfhelp-list {
    display: grid;
    grid-template-columns: 6fr 6fr;
    column-gap: 2.75rem;
    border-top: 0;
  }

  .page-contact .selfhelp-list li {
    border-top: 1px solid var(--contact-line);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .contact-card,
  .page-contact .prep-label,
  .page-contact .selfhelp-title a,
  .page-contact .prep-box,
  .page-contact .contact-card__fit {
    transition: none;
  }

  .page-contact .contact-card:hover,
  .page-contact .contact-card:focus-within,
  .page-contact .prep-label:hover {
    transform: none;
  }
}