.page-contact {
  background: var(--oy-base);
  color: var(--oy-ink);
  padding-bottom: 72px;
}

.page-contact .ct-crumb {
  padding-top: 18px;
  padding-bottom: 18px;
  border-bottom: var(--oy-line);
  font-family: var(--oy-font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
}

.page-contact .ct-crumb ol {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

.page-contact .ct-crumb li {
  color: var(--oy-ink-3);
}

.page-contact .ct-crumb li + li::before {
  content: "/";
  margin-right: 8px;
  color: var(--oy-grid);
}

.page-contact .ct-crumb a {
  color: var(--oy-ink-2);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.25s var(--oy-ease), border-color 0.25s var(--oy-ease);
}

.page-contact .ct-crumb a:hover,
.page-contact .ct-crumb a:focus-visible {
  color: var(--oy-lime);
  border-bottom-color: var(--oy-lime);
}

/* ---------- 首屏 ---------- */

.page-contact .ct-hero {
  position: relative;
  overflow: hidden;
  background: var(--oy-deep);
  border-bottom: var(--oy-line);
}

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

.page-contact .ct-hero__bg img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.4;
  filter: saturate(0.65) contrast(1.05);
}

.page-contact .ct-hero__bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(7, 31, 25, 0.95) 0%, rgba(7, 31, 25, 0.72) 55%, rgba(11, 59, 46, 0.55) 100%),
    linear-gradient(180deg, rgba(7, 31, 25, 0.4) 0%, rgba(11, 59, 46, 0.9) 100%);
}

.page-contact .ct-hero__inner {
  position: relative;
  z-index: 1;
  padding-top: 56px;
  padding-bottom: 92px;
  animation: ct-rise 0.7s var(--oy-ease) both;
}

.page-contact .ct-hero__title {
  margin: 16px 0 0;
  max-width: 20em;
  font-family: var(--oy-font-sans);
  font-weight: 900;
  font-size: clamp(30px, 6.4vw, 52px);
  line-height: 1.24;
  letter-spacing: 0.01em;
  color: var(--oy-ink);
}

.page-contact .ct-hero__lede {
  margin: 20px 0 0;
  max-width: 42em;
  font-size: 16px;
  line-height: 1.9;
  color: var(--oy-ink-2);
}

@keyframes ct-rise {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

/* ---------- 双通道卡片 ---------- */

.page-contact .ct-channels {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  margin-top: -52px;
}

.page-contact .ct-channel {
  position: relative;
  padding: 28px 24px 26px;
  background:
    linear-gradient(var(--oy-panel), var(--oy-panel)) padding-box,
    linear-gradient(160deg, var(--oy-grid) 0%, var(--oy-grid) 58%, var(--oy-lime-dim) 100%) border-box;
  border: 1px solid transparent;
  clip-path: polygon(0 0, calc(100% - 24px) 0, 100% 24px, 100% 100%, 24px 100%, 0 calc(100% - 24px));
  transition: background 0.35s var(--oy-ease), box-shadow 0.35s var(--oy-ease);
}

.page-contact .ct-channel:hover,
.page-contact .ct-channel:focus-visible {
  background:
    linear-gradient(var(--oy-panel), var(--oy-panel)) padding-box,
    linear-gradient(160deg, var(--oy-lime-dim) 0%, var(--oy-lime) 45%, var(--oy-grid) 100%) border-box;
  box-shadow: 0 20px 46px rgba(0, 0, 0, 0.45);
  outline: none;
}

.page-contact .ct-channel__title {
  margin: 14px 0 0;
  font-family: var(--oy-font-sans);
  font-weight: 900;
  font-size: 22px;
  line-height: 1.3;
  color: var(--oy-ink);
}

.page-contact .ct-channel__value {
  margin: 12px 0 0;
  font-family: var(--oy-font-mono);
  font-size: clamp(17px, 3.6vw, 21px);
  font-weight: 700;
  letter-spacing: 0.01em;
  word-break: break-all;
  color: var(--oy-lime);
}

.page-contact .ct-channel--phone .ct-channel__value {
  font-size: clamp(24px, 6vw, 32px);
}

.page-contact .ct-channel__note {
  margin: 14px 0 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--oy-ink-2);
}

.page-contact .ct-channel__tags {
  list-style: none;
  margin: 20px 0 0;
  padding: 16px 0 0;
  border-top: 1px dashed var(--oy-grid);
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-contact .ct-channel__tags li {
  padding: 4px 10px;
  font-family: var(--oy-font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--oy-ink-2);
  background: rgba(20, 98, 76, 0.35);
  border: 1px solid var(--oy-grid);
}

.page-contact .ct-channel--phone .ct-channel__tags li {
  border-color: rgba(255, 122, 61, 0.4);
  color: #F6C8B2;
}

/* ---------- 通用章节 ---------- */

.page-contact .ct-section {
  margin-top: 64px;
}

.page-contact .ct-section__title {
  margin: 14px 0 0;
  font-family: var(--oy-font-sans);
  font-weight: 900;
  font-size: clamp(24px, 4.6vw, 36px);
  line-height: 1.3;
  color: var(--oy-ink);
}

.page-contact .ct-section__intro {
  margin: 16px 0 0;
  max-width: 46em;
  font-size: 16px;
  line-height: 1.9;
  color: var(--oy-ink-2);
}

/* ---------- 邮件写法 ---------- */

.page-contact .ct-mail__example {
  margin-top: 26px;
  padding: 18px 20px 20px;
  background: var(--oy-deep);
  border: var(--oy-line);
  border-left: 3px solid var(--oy-lime);
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.page-contact .ct-mail__example-label {
  font-family: var(--oy-font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--oy-ink-3);
}

.page-contact .ct-mail__example-line {
  margin: 0;
  font-family: var(--oy-font-mono);
  font-size: clamp(14px, 3.2vw, 16px);
  line-height: 1.8;
  color: var(--oy-ink);
  word-break: break-word;
}

.page-contact .ct-mail__key {
  display: inline-block;
  padding: 2px 8px;
  background: var(--oy-lime);
  color: var(--oy-deep);
  font-weight: 700;
  border-radius: 2px;
}

.page-contact .ct-mail__grid {
  margin-top: 32px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
}

.page-contact .ct-mail__block-title {
  margin: 0;
  padding-bottom: 12px;
  border-bottom: var(--oy-line);
  font-family: var(--oy-font-sans);
  font-weight: 900;
  font-size: 17px;
  color: var(--oy-ink);
}

.page-contact .ct-mail__list {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-contact .ct-mail__list li {
  position: relative;
  padding-left: 20px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--oy-ink-2);
}

.page-contact .ct-mail__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 8px;
  height: 1px;
  background: var(--oy-lime-dim);
}

.page-contact .ct-mail__list--mono li {
  font-family: var(--oy-font-mono);
  font-size: 13.5px;
  color: var(--oy-ink-2);
}

.page-contact .ct-mail__list--mono li span {
  color: var(--oy-orange);
  font-weight: 500;
}

/* ---------- 电话用法 ---------- */

.page-contact .ct-phone__card {
  position: relative;
  padding: 28px 24px 30px;
  background:
    linear-gradient(135deg, rgba(255, 122, 61, 0.12) 0%, rgba(15, 74, 58, 0) 52%),
    var(--oy-panel);
  border: var(--oy-line);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 26px), calc(100% - 26px) 100%, 0 100%);
}

.page-contact .ct-phone__body {
  margin: 16px 0 0;
  max-width: 52em;
  font-size: 16px;
  line-height: 1.9;
  color: var(--oy-ink-2);
}

.page-contact .ct-phone__meta {
  margin: 22px 0 0;
  padding-top: 16px;
  border-top: 1px dashed var(--oy-grid);
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px;
  font-size: 14px;
  color: var(--oy-ink-3);
  letter-spacing: 0.02em;
}

.page-contact .ct-phone__meta .oy-num {
  font-family: var(--oy-font-mono);
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--oy-lime);
}

/* ---------- 处理路径 ---------- */

.page-contact .ct-paths__figure {
  margin: 28px 0 0;
  border: var(--oy-line);
  overflow: hidden;
}

.page-contact .ct-paths__figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  opacity: 0.75;
}

.page-contact .ct-paths__list {
  list-style: none;
  margin: 32px 0 0;
  padding: 0;
  counter-reset: none;
}

.page-contact .ct-path {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  gap: 6px 18px;
  padding: 24px 0;
  border-top: var(--oy-line);
  transition: background 0.3s var(--oy-ease);
}

.page-contact .ct-path:last-child {
  border-bottom: var(--oy-line);
}

.page-contact .ct-path:hover {
  background: rgba(15, 74, 58, 0.34);
}

.page-contact .ct-path__num {
  font-family: var(--oy-font-mono);
  font-size: 19px;
  font-weight: 500;
  line-height: 1.35;
  letter-spacing: 0.04em;
  color: var(--oy-lime);
}

.page-contact .ct-path__main {
  min-width: 0;
}

.page-contact .ct-path__title {
  margin: 0;
  font-family: var(--oy-font-sans);
  font-weight: 900;
  font-size: 18px;
  line-height: 1.45;
  color: var(--oy-ink);
}

.page-contact .ct-path__body {
  margin: 10px 0 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--oy-ink-2);
}

.page-contact .ct-path__body a {
  color: var(--oy-lime);
  text-decoration: none;
  border-bottom: 1px solid rgba(198, 255, 61, 0.42);
  transition: border-color 0.25s var(--oy-ease);
}

.page-contact .ct-path__body a:hover,
.page-contact .ct-path__body a:focus-visible {
  border-bottom-color: var(--oy-lime);
}

.page-contact .ct-path__time {
  margin: 12px 0 0;
  display: inline-block;
  padding: 3px 9px;
  font-family: var(--oy-font-mono);
  font-size: 11.5px;
  letter-spacing: 0.08em;
  color: var(--oy-ink-3);
  border: 1px solid var(--oy-grid);
}

/* ---------- 地址与备案 ---------- */

.page-contact .ct-office__grid {
  margin-top: 28px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

.page-contact .ct-office__block {
  padding: 24px 22px 26px;
  border: var(--oy-line);
  background: rgba(15, 74, 58, 0.34);
  clip-path: polygon(0 0, calc(100% - 18px) 0, 100% 18px, 100% 100%, 0 100%);
}

.page-contact .ct-office__block-title {
  margin: 0 0 14px;
  font-family: var(--oy-font-sans);
  font-weight: 900;
  font-size: 16px;
  color: var(--oy-ink);
}

.page-contact .ct-office__addr {
  margin: 0;
  font-size: 17px;
  font-weight: 700;
  line-height: 1.75;
  color: var(--oy-lime);
}

.page-contact .ct-office__hint {
  margin: 16px 0 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--oy-ink-3);
}

.page-contact .ct-office__hint a {
  color: var(--oy-ink-2);
  text-decoration: none;
  border-bottom: 1px solid var(--oy-grid);
  transition: color 0.25s var(--oy-ease), border-color 0.25s var(--oy-ease);
}

.page-contact .ct-office__hint a:hover,
.page-contact .ct-office__hint a:focus-visible {
  color: var(--oy-lime);
  border-bottom-color: var(--oy-lime);
}

.page-contact .ct-office__dl {
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
}

.page-contact .ct-office__row {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 6px 16px;
  padding: 11px 0;
  border-bottom: 1px solid rgba(20, 98, 76, 0.6);
}

.page-contact .ct-office__row:first-child {
  border-top: 1px solid rgba(20, 98, 76, 0.6);
}

.page-contact .ct-office__row dt {
  font-family: var(--oy-font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--oy-ink-3);
}

.page-contact .ct-office__row dd {
  margin: 0;
  font-family: var(--oy-font-mono);
  font-size: 14px;
  font-weight: 500;
  color: var(--oy-ink);
  word-break: break-all;
}

/* ---------- 响应式 ---------- */

@media (min-width: 768px) {
  .page-contact .ct-hero__inner {
    padding-top: 84px;
    padding-bottom: 128px;
  }

  .page-contact .ct-channels {
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    margin-top: -68px;
  }

  .page-contact .ct-channel {
    padding: 34px 32px 32px;
  }

  .page-contact .ct-mail__grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }

  .page-contact .ct-phone__card {
    padding: 36px 40px 38px;
  }

  .page-contact .ct-path {
    grid-template-columns: 64px minmax(0, 1fr);
    gap: 6px 26px;
    padding: 26px 0 26px 8px;
  }

  .page-contact .ct-path__num {
    font-size: 22px;
  }

  .page-contact .ct-office__grid {
    grid-template-columns: 1fr 1.15fr;
    gap: 28px;
  }

  .page-contact .ct-office__block {
    padding: 28px 26px 30px;
  }

  .page-contact .ct-section {
    margin-top: 88px;
  }
}

@media (min-width: 1080px) {
  .page-contact .ct-hero__title {
    max-width: 16em;
  }

  .page-contact .ct-hero__lede {
    font-size: 17px;
  }

  .page-contact .ct-path__body {
    font-size: 15.5px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .ct-hero__inner {
    animation: none;
  }

  .page-contact .ct-channel,
  .page-contact .ct-path,
  .page-contact .ct-crumb a,
  .page-contact .ct-office__hint a,
  .page-contact .ct-path__body a {
    transition: none;
  }
}