.page-contact {
  --ct-card: var(--bb-surface);
  --ct-line: rgba(11, 42, 69, .12);
  --ct-line-soft: rgba(11, 42, 69, .07);
  background: var(--bb-cream);
  color: var(--bb-ink);
  overflow-x: hidden;
}

/* ---------- 面包屑 ---------- */
.page-contact .contact-crumbs {
  position: relative;
  z-index: 2;
  margin: 0 0 clamp(18px, 3vw, 30px);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  padding: clamp(26px, 5vw, 52px) 0 clamp(46px, 7vw, 84px);
  overflow: hidden;
}

.page-contact .contact-hero::before {
  content: "";
  position: absolute;
  top: -20%;
  right: -14%;
  width: min(74vw, 780px);
  height: 134%;
  background: linear-gradient(158deg, rgba(23, 163, 152, .20), rgba(11, 42, 69, .06) 55%, transparent 76%);
  border-radius: 46% 0 0 40%;
  transform: rotate(-7deg);
  pointer-events: none;
}

.page-contact .contact-hero::after {
  content: "";
  position: absolute;
  left: -6%;
  bottom: 6%;
  width: min(44vw, 360px);
  height: 8px;
  background: linear-gradient(90deg, transparent, var(--bb-gold), transparent);
  transform: rotate(-4deg);
  opacity: .6;
  pointer-events: none;
}

.page-contact .contact-hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 4vw, 46px);
  align-items: start;
}

.page-contact .contact-hero__copy h1 {
  margin: 12px 0 18px;
  font-size: clamp(38px, 6vw, 68px);
  line-height: 1.06;
  letter-spacing: -0.02em;
  font-weight: 900;
  color: var(--bb-deep);
  max-width: 14em;
}

.page-contact .contact-hero__copy h1::after {
  content: "";
  display: block;
  width: 86px;
  height: 6px;
  margin-top: 22px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--bb-gold), var(--bb-teal));
}

.page-contact .contact-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

/* ---------- 右侧信息卡 ---------- */
.page-contact .contact-sidecard {
  position: relative;
  overflow: hidden;
  border-radius: var(--bb-radius-lg);
  background: linear-gradient(160deg, var(--bb-deep) 0%, var(--bb-deep-2) 72%, #17527c 100%);
  color: var(--bb-cream);
  box-shadow: var(--bb-shadow);
  isolation: isolate;
}

.page-contact .contact-sidecard::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  background-image:
    linear-gradient(rgba(127, 209, 193, .10) 1px, transparent 1px),
    linear-gradient(90deg, rgba(127, 209, 193, .10) 1px, transparent 1px);
  background-size: 44px 44px;
  opacity: .6;
  pointer-events: none;
}

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

.page-contact .contact-sidecard__visual img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  opacity: .9;
  max-width: 100%;
}

.page-contact .contact-sidecard__visual::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 48%;
  background: linear-gradient(180deg, transparent, var(--bb-deep) 94%);
  pointer-events: none;
}

.page-contact .contact-sidecard__body {
  position: relative;
  z-index: 1;
  padding: clamp(20px, 3vw, 30px);
}

.page-contact .contact-sidecard__line {
  margin: 8px 0 0;
  font-size: 16px;
  line-height: 1.6;
  color: rgba(246, 242, 236, .86);
}

.page-contact .contact-sidecard__divider {
  height: 1px;
  margin: 22px 0;
  background: linear-gradient(90deg, rgba(224, 169, 75, .62), rgba(127, 209, 193, .26), transparent);
}

.page-contact .contact-sidecard__mail {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-top: 10px;
}

.page-contact .contact-mail {
  font-family: var(--bb-font-mono);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--bb-gold-soft);
  word-break: break-all;
}

.page-contact .contact-sidecard__mail .copy-btn,
.page-contact .contact-mailbox .copy-btn {
  color: var(--bb-cream);
  border-color: rgba(246, 242, 236, .42);
}

.page-contact .contact-sidecard__meta {
  margin: 12px 0 0;
  font-size: 13px;
  line-height: 1.6;
  color: rgba(246, 242, 236, .62);
}

/* ---------- 按事情找入口 ---------- */
.page-contact .contact-routes__list {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(16px, 2.4vw, 24px);
  margin-top: clamp(28px, 4vw, 44px);
}

.page-contact .contact-route {
  position: relative;
  padding: clamp(22px, 3vw, 30px);
  border: 1px solid var(--ct-line);
  border-radius: var(--bb-radius);
  background: var(--ct-card);
  transition: transform .3s var(--bb-ease), background-color .3s var(--bb-ease), border-color .3s var(--bb-ease);
}

.page-contact .contact-route::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 56px;
  height: 3px;
  border-radius: 0 0 4px 0;
  background: linear-gradient(90deg, var(--bb-teal), var(--bb-gold));
}

.page-contact .contact-route:hover {
  transform: translateY(-4px);
  background: #F1FAF7;
  border-color: rgba(23, 163, 152, .34);
}

.page-contact .contact-route__index {
  display: inline-block;
  margin: 0;
  font-family: var(--bb-font-mono);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .08em;
  color: var(--bb-teal-dark);
}

.page-contact .contact-route__name {
  margin: 8px 0 12px;
  font-size: clamp(20px, 2.4vw, 24px);
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: -0.01em;
  color: var(--bb-deep);
}

.page-contact .contact-route__text {
  margin: 0 0 16px;
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--bb-stone);
}

.page-contact .contact-route__points {
  list-style: none;
  margin: 0 0 18px;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-contact .contact-route__points li {
  position: relative;
  padding-left: 17px;
  font-size: 14.5px;
  line-height: 1.62;
  color: var(--bb-ink);
}

.page-contact .contact-route__points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .6em;
  width: 7px;
  height: 7px;
  background: var(--bb-teal-soft);
  border-radius: 2px 6px 2px 6px;
  transform: rotate(45deg);
}

/* ---------- 邮件联系 ---------- */
.page-contact .contact-email__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 4vw, 50px);
  align-items: start;
}

.page-contact .contact-mailbox {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin: 24px 0 6px;
  padding: 16px 20px;
  border-radius: var(--bb-radius-sm);
  border-left: 4px solid var(--bb-gold);
  background: linear-gradient(120deg, var(--bb-deep), var(--bb-deep-2));
}

.page-contact .contact-mailbox__addr {
  font-family: var(--bb-font-mono);
  font-size: clamp(14px, 1.6vw, 17px);
  font-weight: 600;
  color: var(--bb-gold-soft);
  word-break: break-all;
}

.page-contact .contact-email__steps {
  list-style: none;
  margin: 28px 0 0;
  padding: 0;
  display: grid;
  gap: 18px;
}

.page-contact .contact-email__steps li {
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  padding-bottom: 16px;
  border-bottom: 1px dashed var(--ct-line);
}

.page-contact .contact-email__steps li:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.page-contact .contact-step {
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  font-family: var(--bb-font-mono);
  font-size: 14px;
  font-weight: 600;
  color: var(--bb-cream);
  background: linear-gradient(140deg, var(--bb-teal), var(--bb-teal-dark));
  border-radius: 16px 4px 16px 4px;
}

.page-contact .contact-email__steps strong {
  display: block;
  margin-bottom: 4px;
  font-size: 16.5px;
  font-weight: 700;
  color: var(--bb-deep);
}

.page-contact .contact-email__steps p {
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--bb-stone);
}

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

/* ---------- 在线通道 ---------- */
.page-contact .contact-online {
  position: relative;
  margin: clamp(36px, 5vw, 64px) 0;
  padding: clamp(42px, 6vw, 78px) 0;
  overflow: hidden;
  background: linear-gradient(140deg, var(--bb-deep) 0%, #0E3453 56%, #10526A 100%);
  color: var(--bb-cream);
}

.page-contact .contact-online::before {
  content: "";
  position: absolute;
  top: -42%;
  right: -12%;
  width: 58%;
  height: 184%;
  border-radius: 50% 0 0 42%;
  transform: rotate(10deg);
  background: linear-gradient(120deg, rgba(23, 163, 152, .30), rgba(224, 169, 75, .10) 60%, transparent 82%);
  pointer-events: none;
}

.page-contact .contact-online__inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 4vw, 48px);
}

.page-contact .contact-online h2 {
  margin: 10px 0 16px;
  font-size: clamp(26px, 3.4vw, 40px);
  line-height: 1.16;
  letter-spacing: -0.01em;
  font-weight: 800;
  color: #FFFFFF;
}

.page-contact .contact-online__lead p {
  margin: 0;
  max-width: 58ch;
  font-size: 16px;
  line-height: 1.82;
  color: rgba(246, 242, 236, .84);
}

.page-contact .contact-eyebrow--light {
  color: var(--bb-teal-soft);
}

.page-contact .contact-online__aside {
  padding: clamp(20px, 3vw, 28px);
  border: 1px solid rgba(127, 209, 193, .28);
  border-radius: var(--bb-radius);
  background: rgba(246, 242, 236, .06);
}

.page-contact .contact-online__label {
  margin: 0 0 14px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .08em;
  color: var(--bb-gold-soft);
}

.page-contact .contact-online__list {
  list-style: none;
  margin: 0 0 22px;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-contact .contact-online__list li {
  position: relative;
  padding-left: 18px;
  font-size: 15px;
  line-height: 1.66;
  color: rgba(246, 242, 236, .9);
}

.page-contact .contact-online__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .66em;
  width: 9px;
  height: 2px;
  background: var(--bb-gold);
}

/* ---------- 办公地点 ---------- */
.page-contact .contact-office__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 4vw, 46px);
  align-items: start;
}

.page-contact .contact-office__intro h2 {
  margin: 10px 0 16px;
  font-size: clamp(26px, 3.2vw, 38px);
  line-height: 1.18;
  letter-spacing: -0.01em;
  font-weight: 800;
  color: var(--bb-deep);
}

.page-contact .contact-office__intro p {
  margin: 0;
  font-size: 16px;
  line-height: 1.82;
  color: var(--bb-stone);
  max-width: 52ch;
}

.page-contact .contact-office__table {
  margin: 0;
  border-top: 2px solid var(--bb-deep);
}

.page-contact .contact-office__row {
  display: grid;
  grid-template-columns: 82px minmax(0, 1fr);
  gap: 16px;
  padding: 16px 6px;
  border-bottom: 1px solid var(--ct-line);
  transition: background-color .25s var(--bb-ease);
}

.page-contact .contact-office__row:hover {
  background: rgba(23, 163, 152, .07);
}

.page-contact .contact-office__row dt {
  padding-top: 3px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .06em;
  color: var(--bb-teal-dark);
}

.page-contact .contact-office__row dd {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.66;
  color: var(--bb-ink);
}

/* ---------- 先自查 ---------- */
.page-contact .contact-qa__list {
  margin-top: clamp(26px, 4vw, 40px);
  border-top: 1px solid var(--ct-line);
}

.page-contact .contact-qa__item {
  border-bottom: 1px solid var(--ct-line);
}

.page-contact .contact-qa__item summary {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 18px 6px;
  list-style: none;
  cursor: pointer;
  font-size: clamp(16px, 1.8vw, 18px);
  font-weight: 700;
  line-height: 1.5;
  color: var(--bb-deep);
  transition: color .25s var(--bb-ease);
}

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

.page-contact .contact-qa__item summary::after {
  content: "+";
  margin-left: auto;
  flex: 0 0 auto;
  font-family: var(--bb-font-mono);
  font-size: 20px;
  font-weight: 600;
  line-height: 1;
  color: var(--bb-teal);
}

.page-contact .contact-qa__item[open] summary::after {
  content: "–";
}

.page-contact .contact-qa__item summary:hover {
  color: var(--bb-teal-dark);
}

.page-contact .contact-qa__body {
  padding: 0 6px 22px;
}

.page-contact .contact-qa__body p {
  margin: 0 0 12px;
  max-width: 68ch;
  font-size: 15.5px;
  line-height: 1.82;
  color: var(--bb-stone);
}

.page-contact .contact-qa__body a {
  font-size: 14.5px;
  font-weight: 600;
  color: var(--bb-teal-dark);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 页尾行动提示带 ---------- */
.page-contact .contact-callout {
  margin: 0;
}

/* ---------- 桌面布局 ---------- */
@media (min-width: 900px) {
  .page-contact .contact-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  }

  .page-contact .contact-office__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  }
}

@media (min-width: 920px) {
  .page-contact .contact-email__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  }
}

@media (min-width: 880px) {
  .page-contact .contact-online__inner {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
    align-items: center;
  }
}

@media (min-width: 760px) {
  .page-contact .contact-routes__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .contact-route:nth-child(2) {
    margin-top: 30px;
  }

  .page-contact .contact-route:nth-child(3) {
    margin-top: 60px;
  }
}

/* ---------- 窄屏收拢 ---------- */
@media (max-width: 560px) {
  .page-contact .contact-email__steps li {
    grid-template-columns: 38px minmax(0, 1fr);
    gap: 12px;
  }

  .page-contact .contact-step {
    width: 38px;
    height: 38px;
    font-size: 12px;
  }

  .page-contact .contact-office__row {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .page-contact .contact-office__row dt {
    padding-top: 0;
  }

  .page-contact .contact-sidecard__line {
    font-size: 15px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .contact-route,
  .page-contact .contact-office__row {
    transition: none;
  }

  .page-contact .contact-route:hover {
    transform: none;
  }
}