.page-contact {
  background: linear-gradient(180deg, var(--deep) 0%, var(--midnight) 100%);
  color: var(--paper);
  font-family: var(--font-body);
}

.page-contact a:focus-visible {
  outline: 2px solid var(--mint);
  outline-offset: 3px;
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(28px, 5vw, 56px) 0 clamp(32px, 5vw, 56px);
  background: var(--grad-clear);
}

.page-contact .contact-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 46%;
  background: linear-gradient(180deg, rgba(10, 27, 46, 0) 0%, var(--deep) 88%);
  pointer-events: none;
}

.page-contact .contact-hero .bs-shell {
  position: relative;
  z-index: 2;
}

.page-contact .contact-hero .bs-breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0 0 26px;
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--muted);
}

.page-contact .contact-hero .bs-breadcrumb a {
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 180ms var(--ease), border-color 180ms var(--ease);
}

.page-contact .contact-hero .bs-breadcrumb a:hover,
.page-contact .contact-hero .bs-breadcrumb a:focus-visible {
  color: var(--mint);
  border-bottom-color: var(--mint-dim);
}

.page-contact .contact-hero .bs-breadcrumb__sep {
  color: var(--line);
}

.page-contact .contact-hero .bs-breadcrumb__current {
  color: var(--paper-2);
}

.page-contact .contact-hero__intro {
  max-width: 48rem;
}

.page-contact .contact-hero .bs-title--xl {
  margin: 12px 0 16px;
}

.page-contact .contact-hero .bs-lede {
  max-width: 44rem;
  color: var(--paper-2);
}

.page-contact .contact-hero__banner {
  margin: 36px 0 0;
  border: 1px solid var(--line);
  overflow: hidden;
  background: var(--midnight);
}

.page-contact .contact-hero__banner .bs-media__img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  opacity: 0.9;
}

/* ---------- 主体左右分栏 ---------- */
.page-contact .contact-main {
  padding-top: clamp(36px, 6vw, 72px);
}

.page-contact .contact-split {
  display: grid;
  gap: clamp(36px, 5vw, 56px);
}

@media (min-width: 960px) {
  .page-contact .contact-split {
    grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
    gap: 72px;
    align-items: start;
  }
}

.page-contact .contact-split__left {
  display: flex;
  flex-direction: column;
}

.page-contact .contact-split__lead {
  margin: 12px 0 28px;
  max-width: 34rem;
  font-size: 16px;
  line-height: 1.75;
  color: var(--muted);
}

/* ---------- 渠道卡片 ---------- */
.page-contact .contact-channels {
  display: grid;
  gap: 16px;
}

.page-contact .contact-channel {
  position: relative;
  padding: 22px 22px 24px;
  border: 1px solid var(--line);
  background: linear-gradient(160deg, rgba(18, 49, 79, 0.92) 0%, rgba(10, 27, 46, 0.7) 100%);
  transition: border-color 200ms var(--ease), background 200ms var(--ease), transform 200ms var(--ease);
}

.page-contact .contact-channel::before {
  content: "";
  position: absolute;
  left: -1px;
  top: -1px;
  width: 3px;
  height: 44px;
  background: linear-gradient(180deg, var(--mint) 0%, rgba(43, 232, 165, 0) 100%);
}

.page-contact .contact-channel::after {
  content: "";
  position: absolute;
  right: -1px;
  bottom: -1px;
  width: 16px;
  height: 16px;
  border-right: 1px solid var(--mint-dim);
  border-bottom: 1px solid var(--mint-dim);
  opacity: 0;
  transition: opacity 200ms var(--ease);
}

.page-contact .contact-channel:focus-within {
  border-color: var(--mint-dim);
  background: linear-gradient(160deg, rgba(18, 49, 79, 1) 0%, rgba(14, 122, 90, 0.22) 100%);
}

.page-contact .contact-channel:focus-within::after {
  opacity: 1;
}

@media (hover: hover) {
  .page-contact .contact-channel:hover {
    border-color: var(--mint-dim);
    background: linear-gradient(160deg, rgba(18, 49, 79, 1) 0%, rgba(14, 122, 90, 0.22) 100%);
    transform: translateX(4px);
  }

  .page-contact .contact-channel:hover::after {
    opacity: 1;
  }
}

.page-contact .contact-channel__label {
  display: flex;
  align-items: center;
  gap: 9px;
  margin: 0 0 12px;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--muted);
}

.page-contact .contact-channel__label::before {
  content: "";
  flex: 0 0 auto;
  width: 7px;
  height: 7px;
  background: var(--mint);
  box-shadow: 0 0 0 3px rgba(43, 232, 165, 0.14);
}

.page-contact .contact-channel__value {
  margin: 0 0 10px;
  font-family: var(--font-num);
  font-variant-numeric: tabular-nums;
  font-size: clamp(1rem, 2.6vw, 1.32rem);
  line-height: 1.4;
  letter-spacing: 0.015em;
  color: var(--paper);
  overflow-wrap: anywhere;
}

.page-contact .contact-channel__value--text {
  font-family: var(--font-body);
  font-size: clamp(0.98rem, 2.2vw, 1.1rem);
  line-height: 1.7;
  letter-spacing: 0;
  overflow-wrap: break-word;
}

.page-contact .contact-channel__hint {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--muted);
}

/* ---------- 右侧栏 ---------- */
.page-contact .contact-split__right {
  display: grid;
  gap: clamp(28px, 4vw, 40px);
}

.page-contact .contact-grid-figure {
  position: relative;
  margin: 0;
  border: 1px solid var(--line);
  background: var(--deep);
  overflow: hidden;
}

.page-contact .contact-grid-figure::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  opacity: 0.75;
  background-image:
    repeating-linear-gradient(0deg, rgba(30, 58, 85, 0.55) 0 1px, transparent 1px 32px),
    repeating-linear-gradient(90deg, rgba(30, 58, 85, 0.55) 0 1px, transparent 1px 32px);
}

.page-contact .contact-grid-figure .bs-media__img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  opacity: 0.85;
}

.page-contact .contact-grid-figure .bs-media__caption {
  position: relative;
  z-index: 2;
  padding: 12px 16px;
  border-top: 1px solid var(--line);
  background: rgba(5, 10, 18, 0.88);
  font-size: 13px;
  line-height: 1.6;
  color: var(--muted);
}

.page-contact .contact-require__lead {
  margin: 10px 0 0;
  font-size: 16px;
  line-height: 1.75;
  color: var(--muted);
}

/* ---------- 材料清单 ---------- */
.page-contact .contact-checklist {
  list-style: none;
  margin: 20px 0 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-contact .contact-checklist__item {
  display: grid;
  grid-template-columns: 26px minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  padding: 16px 4px;
  border-bottom: 1px solid var(--line);
  transition: background 180ms var(--ease);
}

.page-contact .contact-checklist__item:hover {
  background: rgba(18, 49, 79, 0.45);
}

.page-contact .contact-checklist__no {
  padding-top: 2px;
  font-family: var(--font-num);
  font-variant-numeric: tabular-nums;
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--mint);
}

.page-contact .contact-checklist__name {
  margin: 0 0 4px;
  font-size: 16px;
  font-weight: 700;
  color: var(--paper);
}

.page-contact .contact-checklist__desc {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 邮件模板 ---------- */
.page-contact .contact-template {
  border: 1px solid var(--line);
  border-left: 3px solid var(--mint-dim);
  padding: 20px 22px 22px;
  background: rgba(5, 10, 18, 0.62);
}

.page-contact .contact-template__kicker {
  margin: 0 0 14px;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--mint);
}

.page-contact .contact-template__line {
  margin: 0 0 6px;
  font-family: var(--font-num);
  font-size: 14px;
  line-height: 1.9;
  color: var(--paper-2);
  overflow-wrap: anywhere;
}

/* ---------- 协作区块 ---------- */
.page-contact .contact-collab {
  padding-top: clamp(44px, 6vw, 80px);
}

.page-contact .contact-collab .bs-section__head {
  margin-bottom: 16px;
}

.page-contact .contact-collab__lead {
  max-width: 44rem;
  margin: 0 0 32px;
  font-size: 16px;
  line-height: 1.75;
  color: var(--muted);
}

.page-contact .contact-collab__grid {
  align-items: start;
  row-gap: 24px;
}

.page-contact .contact-collab__grid .bs-card {
  border: 1px solid var(--line);
  background: linear-gradient(165deg, rgba(18, 49, 79, 0.86), rgba(10, 27, 46, 0.62));
}

.page-contact .contact-collab__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--muted);
}

/* ---------- 尾部链接 ---------- */
.page-contact .contact-tail {
  padding-bottom: clamp(56px, 8vw, 96px);
}

.page-contact .contact-tail__list {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-contact .contact-tail__item {
  display: grid;
  gap: 6px;
  padding: 18px 4px;
  border-bottom: 1px solid var(--line);
}

@media (min-width: 720px) {
  .page-contact .contact-tail__item {
    grid-template-columns: minmax(0, 20rem) minmax(0, 1fr);
    align-items: baseline;
    gap: 24px;
  }
}

.page-contact .contact-tail__link {
  font-size: 17px;
  font-weight: 700;
  color: var(--paper);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  padding-bottom: 2px;
  transition: color 180ms var(--ease), border-color 180ms var(--ease);
}

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

.page-contact .contact-tail__desc {
  font-size: 15px;
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 窄屏收敛 ---------- */
@media (max-width: 479px) {
  .page-contact .contact-hero .bs-breadcrumb {
    margin-bottom: 18px;
  }

  .page-contact .contact-channel {
    padding: 18px 16px 20px;
  }

  .page-contact .contact-template {
    padding: 16px 16px 18px;
  }

  .page-contact .contact-template__line {
    font-size: 13px;
  }

  .page-contact .contact-checklist__item {
    padding: 14px 2px;
  }
}