.page-contact {
  color: var(--yak-white);
}

/* ---------- 面包屑 ---------- */
.page-contact .breadcrumb {
  padding-top: 20px;
  padding-bottom: 12px;
}

/* ---------- 联系封面 ---------- */
.page-contact .contact-cover {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--grid-line);
}

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

.page-contact .contact-cover__media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.34;
}

.page-contact .contact-cover__media::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(6, 17, 39, 0.5) 0%, rgba(11, 27, 58, 0.86) 52%, var(--night) 100%);
}

.page-contact .contact-cover__inner {
  position: relative;
  z-index: 1;
  padding-top: 36px;
  padding-bottom: 44px;
}

.page-contact .cover-title {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2.3rem, 9vw, 4.6rem);
  line-height: 0.98;
  letter-spacing: -0.02em;
  color: var(--pure-white);
}

.page-contact .contact-cover .lede {
  max-width: 46ch;
  margin-top: 20px;
  color: var(--yak-white);
}

/* ---------- 封面联系条 ---------- */
.page-contact .cover-lines {
  list-style: none;
  margin: 36px 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--grid-line);
  border: 1px solid var(--grid-line);
}

.page-contact .cover-lines__item {
  display: flex;
  flex-direction: column;
  gap: 7px;
  padding: 18px 18px 20px;
  background: rgba(6, 17, 39, 0.78);
  border-left: 3px solid var(--flag-blue);
}

.page-contact .cover-lines__item:nth-child(2) {
  border-left-color: var(--amber);
}

.page-contact .cover-lines__item:nth-child(3) {
  border-left-color: var(--flag-green);
}

.page-contact .cover-lines__label {
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  color: var(--gray-rock);
}

.page-contact .cover-lines__value {
  font-family: var(--font-mono);
  font-size: clamp(0.88rem, 3.8vw, 1.32rem);
  font-weight: 700;
  line-height: 1.35;
  word-break: break-word;
  overflow-wrap: anywhere;
  color: var(--flag-white);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.25s var(--ease), border-color 0.25s var(--ease);
}

.page-contact .cover-lines__value:hover,
.page-contact .cover-lines__value:focus-visible {
  color: var(--amber);
  border-bottom-color: var(--amber);
}

.page-contact .cover-lines__value--plain {
  font-family: var(--font-body);
  font-weight: 700;
  letter-spacing: 0.01em;
}

.page-contact .cover-lines__note {
  font-size: 0.8rem;
  line-height: 1.6;
  color: var(--gray-rock);
}

/* ---------- 章节通用 ---------- */
.page-contact .chapter-head {
  margin-bottom: 26px;
}

.page-contact .section-lede {
  max-width: 62ch;
  margin: 0 0 28px;
  font-size: 1rem;
  line-height: 1.8;
  color: var(--yak-white);
}

.page-contact .section-title--small {
  font-size: clamp(1.15rem, 3.6vw, 1.6rem);
  margin-bottom: 18px;
}

/* ---------- 01 邮箱 ---------- */
.page-contact .split {
  display: grid;
  gap: 30px;
}

.page-contact .split__body p {
  margin: 0 0 18px;
  line-height: 1.8;
}

.page-contact .plain-list {
  list-style: none;
  margin: 0 0 24px;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-contact .plain-list li {
  position: relative;
  padding-left: 20px;
  line-height: 1.78;
  color: var(--yak-white);
}

.page-contact .plain-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 9px;
  height: 2px;
  background: var(--flag-blue);
}

.page-contact .plain-list strong {
  color: var(--pure-white);
}

.page-contact .copy-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  padding: 16px;
  border: 1px solid var(--grid-line);
  background: var(--night-deep);
}

.page-contact .copy-row__mail {
  flex: 1 1 220px;
  font-size: 0.95rem;
  font-weight: 700;
  word-break: break-all;
  color: var(--flag-white);
}

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

/* ---------- 02 电话 ---------- */
.page-contact .phone-block {
  position: relative;
  padding: 30px 22px 28px;
  border: 1px solid var(--grid-line);
  background: var(--night-deep);
}

.page-contact .phone-block::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: linear-gradient(180deg, var(--flag-blue), var(--flag-white), var(--flag-red), var(--flag-green), var(--flag-yellow));
}

.page-contact .phone-block__label {
  margin: 0 0 8px;
  font-size: 0.75rem;
  letter-spacing: 0.16em;
  color: var(--gray-rock);
}

.page-contact .phone-block__num {
  display: inline-block;
  font-size: clamp(1.9rem, 10vw, 3.4rem);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: 0.01em;
  color: var(--amber);
  text-decoration: none;
  transition: color 0.25s var(--ease);
}

.page-contact .phone-block__num:hover,
.page-contact .phone-block__num:focus-visible {
  color: var(--pure-white);
}

.page-contact .phone-block__text {
  margin: 18px 0 20px;
  max-width: 58ch;
  line-height: 1.8;
  color: var(--yak-white);
}

.page-contact .chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

/* ---------- 03 地址 ---------- */
.page-contact .addr-block {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--grid-line);
  background: rgba(6, 17, 39, 0.7);
}

.page-contact .addr-block__svg {
  position: absolute;
  inset: 0;
  opacity: 0.75;
  pointer-events: none;
}

.page-contact .addr-block__svg svg {
  display: block;
  width: 100%;
  height: 100%;
}

.page-contact .addr-block__body {
  position: relative;
  z-index: 1;
  padding: 28px 22px 30px;
}

.page-contact .addr-block__label {
  margin: 0 0 10px;
  font-size: 0.75rem;
  letter-spacing: 0.16em;
  color: var(--gray-rock);
}

.page-contact .addr-block__value {
  margin: 0 0 18px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.3rem, 5.4vw, 2.1rem);
  line-height: 1.25;
  color: var(--pure-white);
}

.page-contact .addr-block__text {
  max-width: 60ch;
  margin: 0 0 26px;
  line-height: 1.8;
  color: var(--yak-white);
}

.page-contact .addr-facts {
  display: grid;
  gap: 1px;
  margin: 0;
  padding: 0;
  background: var(--grid-line);
  border: 1px solid var(--grid-line);
}

.page-contact .addr-facts__item {
  padding: 12px 14px;
  background: rgba(11, 27, 58, 0.72);
}

.page-contact .addr-facts dt {
  margin-bottom: 6px;
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  color: var(--gray-rock);
}

.page-contact .addr-facts dd {
  margin: 0;
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--flag-yellow);
}

/* ---------- 04 合作 ---------- */
.page-contact .partner-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--grid-line);
  border: 1px solid var(--grid-line);
}

.page-contact .partner-list__item {
  padding: 22px 18px;
  background: rgba(11, 27, 58, 0.74);
  border-top: 2px solid transparent;
  transition: border-color 0.25s var(--ease), background-color 0.25s var(--ease);
}

.page-contact .partner-list__item:hover {
  background: rgba(6, 17, 39, 0.92);
  border-top-color: var(--flag-blue);
}

.page-contact .partner-list__title {
  margin: 12px 0 8px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.1rem;
  line-height: 1.35;
  color: var(--pure-white);
}

.page-contact .partner-list__text {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.75;
  color: var(--yak-white);
}

/* ---------- 05 邮件模板 ---------- */
.page-contact .mail-template {
  border: 1px solid var(--grid-line);
  background: var(--night-deep);
  padding: 6px 18px;
}

.page-contact .mail-template__row {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 16px 0;
  border-bottom: 1px dashed var(--grid-line);
}

.page-contact .mail-template__row--last {
  border-bottom: 0;
}

.page-contact .mail-template__key {
  font-size: 0.73rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  color: var(--amber);
}

.page-contact .mail-template__val {
  font-family: var(--font-mono);
  font-size: 0.88rem;
  line-height: 1.7;
  word-break: break-word;
  color: var(--flag-white);
}

/* ---------- 相关入口 ---------- */
.page-contact .next-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-contact .next-links__item {
  display: inline-block;
  padding: 11px 16px;
  border: 1px solid var(--grid-line);
  font-size: 0.85rem;
  line-height: 1.4;
  color: var(--yak-white);
  text-decoration: none;
  background: rgba(6, 17, 39, 0.6);
  transition: color 0.25s var(--ease), border-color 0.25s var(--ease);
}

.page-contact .next-links__item:hover,
.page-contact .next-links__item:focus-visible {
  color: var(--night);
  background: var(--amber);
  border-color: var(--amber);
}

/* ---------- 平板 ---------- */
@media (min-width: 700px) {
  .page-contact .contact-cover__inner {
    padding-top: 52px;
    padding-bottom: 60px;
  }

  .page-contact .cover-lines {
    grid-template-columns: repeat(3, 1fr);
  }

  .page-contact .addr-facts {
    grid-template-columns: repeat(3, 1fr);
  }

  .page-contact .partner-list {
    grid-template-columns: repeat(2, 1fr);
  }

  .page-contact .mail-template {
    padding: 8px 28px;
  }

  .page-contact .mail-template__row {
    flex-direction: row;
    align-items: baseline;
    gap: 22px;
  }

  .page-contact .mail-template__key {
    flex: 0 0 128px;
  }
}

/* ---------- 桌面 ---------- */
@media (min-width: 1024px) {
  .page-contact .breadcrumb {
    padding-top: 28px;
  }

  .page-contact .cover-title {
    letter-spacing: -0.03em;
  }

  .page-contact .split {
    grid-template-columns: 1.12fr 0.88fr;
    gap: 52px;
    align-items: start;
  }

  .page-contact .split__media {
    position: sticky;
    top: calc(var(--bar-h) + 24px);
  }

  .page-contact .phone-block {
    padding: 42px 40px 40px;
  }

  .page-contact .addr-block__body {
    padding: 44px 40px 46px;
  }

  .page-contact .addr-block__value {
    max-width: 22ch;
  }

  .page-contact .partner-list {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .cover-lines__value,
  .page-contact .phone-block__num,
  .page-contact .partner-list__item,
  .page-contact .next-links__item {
    transition: none;
  }
}