.page-contact {
  --contact-cut: 22px;
  --contact-cut-sm: 15px;
}

.page-contact .crumbs {
  padding-top: clamp(24px, 4vw, 48px);
  padding-bottom: clamp(8px, 1.4vw, 18px);
}

.page-contact .contact-stage {
  padding-top: clamp(8px, 2vw, 22px);
  padding-bottom: clamp(0px, 1vw, 12px);
}

.page-contact .contact-stage__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(48px, 7vw, 96px);
  align-items: start;
}

@media (min-width: 900px) {
  .page-contact .contact-stage__grid {
    grid-template-columns: minmax(0, 36fr) minmax(0, 64fr);
    gap: clamp(48px, 5.5vw, 92px);
  }
}

/* ---------- 左栏 ---------- */
.page-contact .contact-stage__side {
  position: relative;
}

@media (min-width: 900px) {
  .page-contact .contact-stage__side {
    position: sticky;
    top: 120px;
  }
}

.page-contact .contact-stage__title {
  margin: 14px 0 22px;
  font-size: clamp(38px, 6.2vw, 68px);
  font-weight: 300;
  line-height: 1.04;
  letter-spacing: -0.02em;
  color: var(--ink);
}

.page-contact .contact-stage__title-em {
  display: block;
  font-weight: 800;
  color: var(--neon);
  letter-spacing: -0.01em;
}

.page-contact .contact-stage__lede {
  max-width: 34ch;
  color: var(--muted);
}

/* ---------- 入口面板 ---------- */
.page-contact .contact-entries {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  margin-top: clamp(28px, 4vw, 46px);
}

.page-contact .contact-entry {
  position: relative;
  padding: 26px 24px 28px;
  background: var(--panel);
  clip-path: polygon(
    var(--contact-cut) 0,
    100% 0,
    100% calc(100% - var(--contact-cut)),
    calc(100% - var(--contact-cut)) 100%,
    0 100%,
    0 var(--contact-cut)
  );
  transition: background-color 0.32s var(--ease);
}

.page-contact .contact-entry--alt {
  clip-path: polygon(
    0 0,
    calc(100% - var(--contact-cut)) 0,
    100% var(--contact-cut),
    100% 100%,
    var(--contact-cut) 100%,
    0 calc(100% - var(--contact-cut))
  );
}

.page-contact .contact-entry--primary {
  background: #163a6e;
}

.page-contact .contact-entry:hover {
  background: #1a4380;
}

.page-contact .contact-entry--primary:hover {
  background: #1d4e8c;
}

.page-contact .contact-entry__title {
  margin: 14px 0 10px;
  color: var(--ink);
  font-weight: 600;
}

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

.page-contact .contact-entry__value {
  display: inline-block;
  margin: 18px 0 0;
  padding-bottom: 5px;
  font-size: 14px;
  letter-spacing: -0.02em;
  color: var(--neon);
  border-bottom: 1px dashed rgba(0, 255, 170, 0.55);
  word-break: break-all;
}

.page-contact .contact-entry__value--pulse {
  color: var(--pulse);
  border-bottom-color: rgba(255, 76, 41, 0.5);
}

.page-contact .contact-entry__media {
  margin-top: 20px;
  overflow: hidden;
  clip-path: polygon(0 0, 100% 0, 100% 78%, 84% 100%, 0 100%);
}

.page-contact .contact-entry__media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(0.9) contrast(1.05);
}

/* ---------- 处理节奏 ---------- */
.page-contact .contact-rhythm {
  margin-top: clamp(36px, 5vw, 60px);
  padding-top: clamp(22px, 3vw, 34px);
  border-top: 1px solid var(--rail);
}

.page-contact .contact-rhythm__title {
  margin: 10px 0 20px;
  color: var(--ink);
  font-weight: 600;
}

.page-contact .contact-rhythm__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 20px;
}

.page-contact .contact-rhythm__item {
  display: grid;
  grid-template-columns: 44px 1fr;
  gap: 14px;
  align-items: start;
}

.page-contact .contact-rhythm__mark {
  font-size: 13px;
  letter-spacing: -0.02em;
  color: var(--neon);
  padding-top: 4px;
}

.page-contact .contact-rhythm__name {
  margin: 0 0 4px;
  color: var(--ink);
  font-weight: 600;
}

.page-contact .contact-rhythm__desc {
  margin: 0;
  font-size: 15px;
}

/* ---------- 右栏 ---------- */
@media (min-width: 900px) {
  .page-contact .contact-stage__main {
    padding-top: 68px;
  }
}

/* ---------- 咨询方向 ---------- */
.page-contact .contact-topics__lede {
  margin: 14px 0 0;
  max-width: 40ch;
}

.page-contact .contact-topics__list {
  list-style: none;
  margin: clamp(26px, 3.5vw, 42px) 0 0;
  padding: 0;
}

.page-contact .contact-topic {
  display: grid;
  grid-template-columns: 44px 1fr;
  gap: 14px;
  align-items: start;
  padding: 22px 0;
  border-bottom: 1px solid var(--rail);
  transition: border-color 0.3s var(--ease);
}

.page-contact .contact-topic:first-child {
  padding-top: 0;
}

.page-contact .contact-topic:hover {
  border-bottom-color: var(--neon);
}

.page-contact .contact-topic__num {
  font-size: 22px;
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--rail);
  padding-top: 4px;
  transition: color 0.3s var(--ease);
}

.page-contact .contact-topic:hover .contact-topic__num {
  color: var(--neon);
}

.page-contact .contact-topic__name {
  margin: 0 0 6px;
  color: var(--ink);
  font-weight: 600;
}

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

/* ---------- 联系信息 ---------- */
.page-contact .contact-info {
  position: relative;
  margin-top: clamp(48px, 6vw, 80px);
  padding: clamp(28px, 4vw, 52px);
  background: var(--navy-deep);
  overflow: hidden;
}

.page-contact .contact-info__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  opacity: 0.2;
  pointer-events: none;
}

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

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

.page-contact .contact-info__title {
  margin: 12px 0 0;
  color: var(--ink);
  font-weight: 600;
}

.page-contact .contact-info__list {
  margin: clamp(22px, 3vw, 34px) 0 0;
  display: grid;
  gap: 16px;
}

.page-contact .contact-info__row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 5px;
  padding-bottom: 14px;
  border-bottom: 1px dashed rgba(155, 176, 206, 0.32);
}

@media (min-width: 620px) {
  .page-contact .contact-info__row {
    grid-template-columns: 148px 1fr;
    gap: 22px;
    align-items: baseline;
  }
}

.page-contact .contact-info__row dt {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--muted);
}

.page-contact .contact-info__row dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 16px;
  letter-spacing: -0.02em;
  color: var(--ink);
  word-break: break-all;
}

.page-contact .contact-info__note {
  margin: clamp(20px, 2.6vw, 30px) 0 0;
  max-width: 42ch;
  font-size: 15px;
}

/* ---------- 合作与反馈 ---------- */
.page-contact .contact-partner {
  margin-top: clamp(48px, 6vw, 80px);
}

.page-contact .contact-partner__grid {
  margin-top: clamp(22px, 3vw, 34px);
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

@media (min-width: 700px) {
  .page-contact .contact-partner__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-contact .contact-partner__item {
  padding: 24px 22px 26px;
  background: var(--panel);
  border-left: 2px solid var(--rail);
  transition: border-color 0.3s var(--ease), transform 0.3s var(--ease),
    background-color 0.3s var(--ease);
}

.page-contact .contact-partner__item:hover {
  border-left-color: var(--neon);
  background: #163a6e;
  transform: translateY(-4px);
}

.page-contact .contact-partner__name {
  margin: 0 0 10px;
  color: var(--ink);
  font-weight: 600;
}

.page-contact .contact-partner__desc {
  margin: 0;
  font-size: 15px;
}

/* ---------- 底部备案条 ---------- */
.page-contact .contact-regbar {
  margin-top: clamp(72px, 10vw, 140px);
  background: var(--navy-deep);
  border-top: 1px solid var(--rail);
}

.page-contact .contact-regbar__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 18px 30px;
  padding-top: clamp(24px, 3vw, 38px);
  padding-bottom: clamp(24px, 3vw, 38px);
}

.page-contact .contact-regbar__brand {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 24px;
  flex: 1 1 auto;
}

.page-contact .contact-regbar__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--neon);
  box-shadow: 0 0 12px rgba(0, 255, 170, 0.8);
}

.page-contact .contact-regbar__domain {
  font-size: 13px;
  letter-spacing: -0.02em;
  color: var(--ink);
}

.page-contact .contact-regbar__icp {
  font-size: 13px;
  letter-spacing: -0.02em;
  color: var(--muted);
}

.page-contact .contact-regbar__cta {
  flex: 0 0 auto;
}

/* ---------- 窄屏收敛 ---------- */
@media (max-width: 640px) {
  .page-contact .contact-entry {
    --contact-cut: var(--contact-cut-sm);
    padding: 22px 18px 24px;
  }

  .page-contact .contact-topic,
  .page-contact .contact-rhythm__item {
    grid-template-columns: 38px 1fr;
    gap: 12px;
  }

  .page-contact .contact-regbar__brand {
    width: 100%;
  }

  .page-contact .contact-regbar__cta {
    width: 100%;
    text-align: center;
  }
}