.page-contact {
  --contact-panel: rgba(22, 35, 63, 0.68);
  --contact-line: rgba(247, 241, 229, 0.14);
  --contact-line-strong: rgba(247, 241, 229, 0.3);
  --contact-rule: repeating-linear-gradient(
    90deg,
    rgba(247, 241, 229, 0.32) 0 6px,
    transparent 6px 18px
  );
  position: relative;
  background: var(--c28-ink);
  color: var(--c28-paper);
  overflow-x: hidden;
  padding-bottom: clamp(56px, 8vw, 96px);
}

.page-contact .c28-breadcrumb {
  padding-top: clamp(84px, 11vw, 124px);
  padding-bottom: 4px;
}

/* ---------- 框景首屏 ---------- */
.page-contact .contact-stage {
  padding-top: clamp(16px, 3vw, 32px);
}

.page-contact .contact-stage__frame {
  position: relative;
  padding: clamp(30px, 4.4vw, 60px) clamp(22px, 4vw, 56px);
  border: 1px solid var(--contact-line);
  border-radius: calc(var(--c28-radius) + 6px);
  background:
    radial-gradient(120% 95% at 6% 0%, rgba(57, 224, 208, 0.14), transparent 54%),
    radial-gradient(85% 85% at 100% 105%, rgba(255, 107, 74, 0.12), transparent 62%),
    linear-gradient(180deg, rgba(22, 35, 63, 0.9), rgba(11, 18, 32, 0.94));
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 26px 64px rgba(4, 8, 18, 0.55);
  overflow: hidden;
}

.page-contact .contact-stage__frame::before,
.page-contact .contact-stage__frame::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  height: 10px;
  background: var(--contact-rule);
  opacity: 0.4;
  pointer-events: none;
}

.page-contact .contact-stage__frame::before {
  top: 0;
}

.page-contact .contact-stage__frame::after {
  bottom: 0;
}

.page-contact .contact-tick {
  position: absolute;
  width: 18px;
  height: 18px;
  border: 1px solid rgba(57, 224, 208, 0.62);
  pointer-events: none;
}

.page-contact .contact-tick--tl {
  top: 14px;
  left: 14px;
  border-right: 0;
  border-bottom: 0;
}

.page-contact .contact-tick--tr {
  top: 14px;
  right: 14px;
  border-left: 0;
  border-bottom: 0;
}

.page-contact .contact-tick--bl {
  bottom: 14px;
  left: 14px;
  border-right: 0;
  border-top: 0;
}

.page-contact .contact-tick--br {
  bottom: 14px;
  right: 14px;
  border-left: 0;
  border-top: 0;
}

.page-contact .contact-stage__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 3.6vw, 48px);
  align-items: start;
}

.page-contact .contact-stage__title {
  margin: 14px 0 18px;
  font-size: clamp(2.05rem, 5.2vw, 3.55rem);
  font-weight: 800;
  letter-spacing: -0.022em;
  line-height: 1.1;
  color: var(--c28-paper);
}

.page-contact .contact-stage__lede {
  max-width: 58ch;
  margin: 0;
  font-size: 1.02rem;
  line-height: 1.8;
  color: var(--c28-text-dim);
}

.page-contact .contact-stage__chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .contact-stage__chips li {
  display: inline-flex;
}

.page-contact .contact-channels {
  border: 1px solid var(--contact-line);
  border-radius: var(--c28-radius);
  background: var(--contact-panel);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  padding: clamp(20px, 3vw, 28px);
}

.page-contact .contact-channels__title {
  margin: 0 0 14px;
  font-family: var(--c28-mono);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--c28-cyan);
}

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

.page-contact .contact-channels__item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 13px 0;
  border-bottom: 1px dashed var(--contact-line);
  min-width: 0;
}

.page-contact .contact-channels__item:last-child {
  border-bottom: 0;
  padding-bottom: 2px;
}

.page-contact .contact-channels__label {
  flex: 0 0 auto;
  font-size: 0.8rem;
  letter-spacing: 0.04em;
  color: var(--c28-text-dim);
}

.page-contact .contact-channels__value {
  flex: 0 1 auto;
  min-width: 0;
  font-family: var(--c28-mono);
  font-size: 0.86rem;
  letter-spacing: 0.01em;
  color: var(--c28-paper);
  text-align: right;
  overflow-wrap: anywhere;
}

/* ---------- 首选在线表单 ---------- */
.page-contact .contact-form-sec__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 4vw, 56px);
  align-items: start;
}

.page-contact .contact-form-sec__copy .c28-lede {
  margin-top: 14px;
}

.page-contact .contact-spec {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-contact .contact-spec > li {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  gap: 4px 12px;
  padding: 15px 16px;
  border: 1px solid var(--contact-line);
  border-radius: var(--c28-radius-sm);
  background: rgba(22, 35, 63, 0.55);
  transition: transform 0.22s var(--c28-ease), border-color 0.22s var(--c28-ease);
}

.page-contact .contact-spec > li:hover {
  transform: translateY(-2px);
  border-color: var(--contact-line-strong);
}

.page-contact .contact-spec__no {
  grid-row: 1 / span 2;
  align-self: start;
  padding-top: 3px;
  font-family: var(--c28-mono);
  font-size: 0.82rem;
  letter-spacing: 0.04em;
  color: var(--c28-gold);
}

.page-contact .contact-spec__label {
  grid-column: 2;
  font-size: 0.98rem;
  font-weight: 600;
  color: var(--c28-paper);
}

.page-contact .contact-spec__hint {
  grid-column: 2;
  font-size: 0.88rem;
  line-height: 1.65;
  color: var(--c28-text-dim);
}

.page-contact .contact-form-sec__media {
  margin: 0;
  border: 1px solid var(--contact-line);
  border-radius: var(--c28-radius);
  overflow: hidden;
  background: var(--c28-ink-2);
}

.page-contact .c28-media__img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

.page-contact .c28-media__caption {
  display: block;
  padding: 12px 18px 14px;
  font-family: var(--c28-mono);
  font-size: 0.76rem;
  letter-spacing: 0.03em;
  color: var(--c28-text-dim);
  background: rgba(11, 18, 32, 0.85);
  border-top: 1px solid var(--contact-line);
}

/* ---------- 客服邮箱与电话 ---------- */
.page-contact .contact-direct__head {
  max-width: 62ch;
}

.page-contact .contact-direct__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
  margin-top: 28px;
}

.page-contact .contact-direct__card {
  border: 1px solid var(--contact-line);
  border-radius: var(--c28-radius);
  background: var(--contact-panel);
  padding: clamp(20px, 3vw, 30px);
  transition: transform 0.24s var(--c28-ease), border-color 0.24s var(--c28-ease);
}

.page-contact .contact-direct__card:hover {
  transform: translateY(-3px);
  border-color: rgba(57, 224, 208, 0.45);
}

.page-contact .contact-direct__value {
  margin: 10px 0 12px;
  font-family: var(--c28-mono);
  font-size: clamp(1rem, 1.7vw, 1.16rem);
  font-weight: 700;
  letter-spacing: -0.005em;
  color: var(--c28-paper);
  overflow-wrap: anywhere;
}

.page-contact .contact-direct__note {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.75;
  color: var(--c28-text-dim);
}

/* ---------- 办公地址与备案信息 ---------- */
.page-contact .contact-location__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 52px);
  align-items: center;
}

.page-contact .contact-location__media {
  margin: 0;
  border: 1px solid var(--contact-line);
  border-radius: var(--c28-radius);
  overflow: hidden;
  background: var(--c28-ink-2);
}

.page-contact .contact-location__copy .c28-lede {
  margin-top: 14px;
}

.page-contact .contact-location__list {
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  gap: 0;
}

.page-contact .contact-location__row {
  display: grid;
  grid-template-columns: 92px minmax(0, 1fr);
  gap: 14px;
  align-items: baseline;
  padding: 14px 0;
  border-bottom: 1px dashed var(--contact-line);
}

.page-contact .contact-location__row:first-child {
  border-top: 1px dashed var(--contact-line);
}

.page-contact .contact-location__row dt {
  margin: 0;
  font-family: var(--c28-mono);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  color: var(--c28-text-dim);
}

.page-contact .contact-location__row dd {
  margin: 0;
  font-size: 0.98rem;
  line-height: 1.7;
  color: var(--c28-paper);
  overflow-wrap: anywhere;
}

/* ---------- 合作咨询 ---------- */
.page-contact .contact-partner__head {
  max-width: 68ch;
}

.page-contact .contact-partner__head .c28-lede {
  margin-top: 14px;
}

.page-contact .contact-partner__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
  margin-top: 28px;
}

.page-contact .contact-partner__item {
  border: 1px solid var(--contact-line);
  border-radius: var(--c28-radius-sm);
  background: rgba(22, 35, 63, 0.55);
  padding: 18px 20px;
  transition: transform 0.22s var(--c28-ease), border-color 0.22s var(--c28-ease),
    background-color 0.22s var(--c28-ease);
}

.page-contact .contact-partner__item:hover {
  transform: translateY(-3px);
  border-color: rgba(255, 107, 74, 0.48);
}

.page-contact .contact-partner__item[open] {
  background: rgba(22, 35, 63, 0.86);
  border-color: rgba(255, 107, 74, 0.4);
}

.page-contact .contact-partner__item summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 1rem;
  font-weight: 600;
  color: var(--c28-paper);
}

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

.page-contact .contact-partner__item summary::before {
  content: "+";
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  font-family: var(--c28-mono);
  font-size: 1rem;
  line-height: 1;
  color: var(--c28-coral);
  border: 1px solid rgba(255, 107, 74, 0.5);
  border-radius: 50%;
  transition: transform 0.22s var(--c28-ease);
}

.page-contact .contact-partner__item[open] summary::before {
  content: "−";
  transform: rotate(180deg);
}

.page-contact .contact-partner__item summary:focus-visible {
  outline: 2px solid var(--c28-cyan);
  outline-offset: 4px;
  border-radius: 4px;
}

.page-contact .contact-partner__item p {
  margin: 12px 0 2px;
  padding-left: 34px;
  font-size: 0.9rem;
  line-height: 1.8;
  color: var(--c28-text-dim);
}

/* ---------- 邮寄与资料寄送 ---------- */
.page-contact .contact-mailing__card {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 44px);
  padding: clamp(24px, 4vw, 44px);
  border: 1px solid var(--contact-line);
  border-radius: calc(var(--c28-radius) + 4px);
  background:
    linear-gradient(180deg, rgba(22, 35, 63, 0.92), rgba(11, 18, 32, 0.94));
  box-shadow: inset 0 0 0 1px rgba(230, 184, 92, 0.08);
}

.page-contact .contact-mailing__note {
  margin: 14px 0 0;
  font-size: 0.95rem;
  line-height: 1.8;
  color: var(--c28-text-dim);
}

.page-contact .contact-mailing__addr {
  margin: 18px 0 0;
  padding: 12px 16px;
  border-left: 3px solid var(--c28-gold);
  border-radius: 0 var(--c28-radius-sm) var(--c28-radius-sm) 0;
  background: rgba(230, 184, 92, 0.08);
  font-size: 0.94rem;
  color: var(--c28-paper);
}

.page-contact .contact-mailing__steps ol {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-contact .contact-mailing__steps li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 0.93rem;
  line-height: 1.7;
  color: var(--c28-paper);
}

.page-contact .contact-steps__no {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  margin-top: 2px;
  font-family: var(--c28-mono);
  font-size: 0.74rem;
  color: var(--c28-gold);
  border: 1px solid rgba(230, 184, 92, 0.55);
  border-radius: 50%;
}

/* ---------- 提交前检查 ---------- */
.page-contact .contact-precheck__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 52px);
  align-items: start;
}

.page-contact .contact-precheck__copy .c28-lede {
  margin-top: 14px;
}

.page-contact .contact-precheck__links {
  margin: 20px 0 0;
  font-size: 0.92rem;
  line-height: 1.9;
  color: var(--c28-text-dim);
}

.page-contact .contact-precheck__links a {
  color: var(--c28-cyan);
  text-decoration: none;
  border-bottom: 1px dashed rgba(57, 224, 208, 0.5);
  padding-bottom: 1px;
  transition: color 0.2s var(--c28-ease), border-color 0.2s var(--c28-ease);
}

.page-contact .contact-precheck__links a:hover {
  color: var(--c28-paper);
  border-bottom-color: var(--c28-paper);
}

.page-contact .contact-precheck__links a:focus-visible {
  outline: 2px solid var(--c28-cyan);
  outline-offset: 3px;
  border-radius: 3px;
}

.page-contact .contact-precheck__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-contact .contact-precheck__list > li {
  display: grid;
  grid-template-columns: 50px minmax(0, 1fr);
  gap: 14px;
  padding: 18px 20px;
  border: 1px solid var(--contact-line);
  border-radius: var(--c28-radius-sm);
  background: rgba(22, 35, 63, 0.5);
  transition: transform 0.22s var(--c28-ease), border-color 0.22s var(--c28-ease);
}

.page-contact .contact-precheck__list > li:hover {
  transform: translateY(-2px);
  border-color: var(--contact-line-strong);
}

.page-contact .contact-precheck__no {
  font-family: var(--c28-mono);
  font-size: 1.08rem;
  font-weight: 700;
  color: var(--c28-cyan);
  line-height: 1.2;
}

.page-contact .contact-precheck__list h3 {
  margin: 0 0 6px;
  font-size: 1rem;
  font-weight: 600;
  color: var(--c28-paper);
}

.page-contact .contact-precheck__list p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.75;
  color: var(--c28-text-dim);
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-contact .contact-direct__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (min-width: 860px) {
  .page-contact .contact-stage__grid {
    grid-template-columns: minmax(0, 1.35fr) minmax(280px, 0.9fr);
  }
}

@media (min-width: 880px) {
  .page-contact .contact-location__grid {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
  }
}

@media (min-width: 920px) {
  .page-contact .contact-form-sec__grid {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
  }

  .page-contact .contact-precheck__grid {
    grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
  }
}

@media (min-width: 840px) {
  .page-contact .contact-mailing__card {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.75fr);
  }
}

@media (max-width: 480px) {
  .page-contact .contact-location__row {
    grid-template-columns: minmax(0, 1fr);
    gap: 6px;
  }

  .page-contact .contact-precheck__list > li {
    grid-template-columns: 40px minmax(0, 1fr);
    gap: 10px;
  }

  .page-contact .contact-partner__item p {
    padding-left: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .contact-spec > li,
  .page-contact .contact-direct__card,
  .page-contact .contact-partner__item,
  .page-contact .contact-precheck__list > li {
    transition: none;
  }

  .page-contact .contact-partner__item summary::before {
    transition: none;
  }
}