.page-contact {
  --ct-line: rgba(53, 231, 192, 0.16);
  --ct-line-soft: rgba(53, 231, 192, 0.07);
  --ct-glow: rgba(53, 231, 192, 0.10);
  padding-top: clamp(88px, 11vw, 122px);
  padding-bottom: clamp(40px, 6vw, 72px);
}

.page-contact .yb-breadcrumb {
  padding-bottom: 10px;
}

/* ---------- 首屏 ---------- */
.page-contact .ct-head {
  padding: clamp(14px, 2.6vw, 30px) 0 clamp(28px, 4.4vw, 52px);
}

.page-contact .ct-head .yb-display {
  margin: 14px 0 0;
  max-width: 17em;
}

.page-contact .ct-head .yb-lede {
  margin: 18px 0 0;
  max-width: 48em;
}

.page-contact .ct-head__meta {
  list-style: none;
  margin: clamp(20px, 3vw, 30px) 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 26px;
  font-family: var(--yb-font-cond);
  font-size: 13px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--yb-muted);
}

.page-contact .ct-head__meta li {
  position: relative;
  padding-left: 16px;
}

.page-contact .ct-head__meta li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 7px;
  height: 1px;
  background: var(--yb-accent);
}

/* ---------- 斜切联系浮岛 ---------- */
.page-contact .ct-island {
  padding: clamp(8px, 2vw, 20px) 0 clamp(44px, 6.6vw, 84px);
}

.page-contact .ct-island__panel {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 4vw, 52px);
  padding: clamp(38px, 5.4vw, 64px) clamp(20px, 4vw, 56px);
  background-image:
    linear-gradient(var(--ct-line-soft) 1px, transparent 1px),
    linear-gradient(90deg, var(--ct-line-soft) 1px, transparent 1px),
    linear-gradient(155deg, rgba(12, 36, 30, 0.97) 0%, rgba(6, 20, 16, 0.99) 100%);
  background-size: 46px 46px, 46px 46px, 100% 100%;
  clip-path: polygon(
    0 clamp(16px, 2.6vw, 34px),
    100% 0,
    100% calc(100% - clamp(16px, 2.6vw, 34px)),
    0 100%
  );
  filter: drop-shadow(0 30px 58px rgba(0, 0, 0, 0.58));
}

.page-contact .ct-island__intro {
  margin: 16px 0 0;
  max-width: 40em;
  font-size: 15px;
  line-height: 1.8;
  color: var(--yb-muted);
}

.page-contact .ct-channels {
  list-style: none;
  margin: clamp(22px, 3vw, 34px) 0 0;
  padding: 0;
  display: grid;
  gap: 0;
}

.page-contact .ct-channel {
  position: relative;
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  gap: 16px;
  align-items: start;
  padding: clamp(18px, 2.6vw, 26px) clamp(12px, 2vw, 18px);
  border-top: 1px solid var(--ct-line);
  transition: background-color 0.22s ease, transform 0.22s ease;
}

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

.page-contact .ct-channel:hover,
.page-contact .ct-channel:focus-within {
  background-color: var(--ct-glow);
  transform: translateY(-4px);
}

.page-contact .ct-channel__icon {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 14px;
  border: 1px solid var(--ct-line);
  color: var(--yb-accent);
}

.page-contact .ct-channel__icon svg {
  width: 19px;
  height: 19px;
}

.page-contact .ct-channel__label {
  margin: 0;
  font-family: var(--yb-font-cond);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--yb-muted);
}

.page-contact .ct-channel__value {
  margin: 8px 0 0;
  font-family: var(--yb-font-mono);
  font-size: clamp(15px, 2vw, 20px);
  line-height: 1.45;
  letter-spacing: -0.01em;
  color: var(--yb-ink);
  overflow-wrap: anywhere;
}

.page-contact .ct-channel__desc {
  margin: 10px 0 0;
  max-width: 44em;
  font-size: 14px;
  line-height: 1.75;
  color: var(--yb-muted);
}

.page-contact .ct-channel__badge {
  position: absolute;
  top: 14px;
  right: 14px;
  padding: 4px 11px;
  border-radius: var(--yb-pill);
  background: rgba(53, 231, 192, 0.14);
  color: var(--yb-accent);
  font-family: var(--yb-font-cond);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  white-space: nowrap;
  opacity: 0;
  transform: translateY(-4px);
  transition: opacity 0.2s ease, transform 0.2s ease;
  pointer-events: none;
}

.page-contact .ct-channel:hover .ct-channel__badge,
.page-contact .ct-channel:focus-within .ct-channel__badge {
  opacity: 1;
  transform: translateY(0);
}

.page-contact .ct-island__right {
  display: grid;
  gap: 18px;
  align-content: start;
}

.page-contact .ct-island__figure {
  position: relative;
  margin: 0;
  border-radius: var(--yb-radius-sm);
  overflow: hidden;
  border: 1px solid var(--ct-line);
}

.page-contact .ct-island__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  filter: saturate(0.68) contrast(1.06) brightness(0.92);
}

.page-contact .ct-island__figure::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(53, 231, 192, 0.10) 1px, transparent 1px),
    linear-gradient(90deg, rgba(53, 231, 192, 0.10) 1px, transparent 1px);
  background-size: 34px 34px;
  pointer-events: none;
}

.page-contact .ct-island__caption {
  margin: 10px 0 0;
  font-size: 13px;
  color: var(--yb-muted);
}

.page-contact .ct-island__tip {
  margin: 0;
  padding-left: 14px;
  border-left: 2px solid var(--yb-signal);
  font-size: 14px;
  line-height: 1.7;
  color: var(--yb-ink);
}

/* ---------- 来信要点 ---------- */
.page-contact .ct-brief {
  padding: clamp(30px, 5vw, 62px) 0;
}

.page-contact .ct-brief .yb-text {
  margin-top: 16px;
  max-width: 44em;
}

.page-contact .ct-brief__list {
  list-style: none;
  margin: clamp(24px, 3.4vw, 38px) 0 0;
  padding: 0;
  display: grid;
  gap: 0;
  counter-reset: none;
}

.page-contact .ct-brief__item {
  position: relative;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  grid-template-areas:
    "no title"
    "no text";
  column-gap: clamp(14px, 2vw, 24px);
  padding: clamp(16px, 2.4vw, 24px) 0;
  border-top: 1px solid var(--ct-line);
}

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

.page-contact .ct-brief__no {
  grid-area: no;
  font-size: 26px;
  line-height: 1;
  color: var(--yb-accent);
  opacity: 0.85;
}

.page-contact .ct-brief__item .yb-h3 {
  grid-area: title;
  margin: 0;
}

.page-contact .ct-brief__item p {
  grid-area: text;
  margin: 8px 0 0;
  max-width: 42em;
  font-size: 15px;
  line-height: 1.78;
  color: var(--yb-muted);
}

.page-contact .ct-brief__aside {
  display: grid;
  gap: 18px;
  align-content: start;
  margin-top: clamp(26px, 4vw, 0px);
}

.page-contact .ct-brief__aside .yb-note p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
}

.page-contact .ct-brief__aside .yb-details__body p {
  margin: 0 0 12px;
  font-size: 14px;
  line-height: 1.8;
}

.page-contact .ct-brief__aside .yb-details__body p:last-child {
  margin-bottom: 0;
}

.page-contact .ct-brief__aside a {
  color: var(--yb-accent);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 备案与站点信息 ---------- */
.page-contact .ct-record {
  padding: clamp(34px, 5.4vw, 68px) 0 clamp(30px, 4.6vw, 56px);
}

.page-contact .ct-record__bar {
  max-width: 62ch;
  padding-left: clamp(16px, 2.4vw, 28px);
  border-left: 2px solid var(--yb-accent);
}

.page-contact .ct-record__lead {
  margin: 12px 0 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--yb-muted);
}

.page-contact .ct-record__list {
  list-style: none;
  margin: clamp(20px, 3vw, 28px) 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-contact .ct-record__list li {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 14px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--yb-muted);
}

.page-contact .ct-record__list li span {
  flex: 0 0 auto;
  min-width: 5.5em;
  font-family: var(--yb-font-cond);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-size: 12px;
}

.page-contact .ct-record__list li b {
  flex: 1 1 14em;
  font-weight: 500;
  color: var(--yb-ink);
}

.page-contact .ct-record__link {
  margin: clamp(18px, 2.6vw, 26px) 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--yb-muted);
}

.page-contact .ct-record__link a {
  color: var(--yb-accent);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 合作与内容互换 ---------- */
.page-contact .ct-partner {
  padding: clamp(20px, 3vw, 34px) 0 clamp(48px, 7vw, 88px);
}

.page-contact .ct-partner__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 4vw, 48px);
  padding: clamp(24px, 4vw, 52px);
  border: 1px solid var(--ct-line);
  border-radius: var(--yb-radius);
  background-image:
    radial-gradient(120% 140% at 100% 0%, rgba(53, 231, 192, 0.10), transparent 62%),
    linear-gradient(180deg, rgba(12, 36, 30, 0.88) 0%, rgba(6, 20, 16, 0.94) 100%);
}

.page-contact .ct-partner .yb-text {
  margin: 16px 0 0;
  max-width: 40em;
}

.page-contact .ct-partner__list {
  list-style: none;
  margin: clamp(20px, 3vw, 30px) 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-contact .ct-partner__list li {
  position: relative;
  padding-left: 24px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--yb-muted);
}

.page-contact .ct-partner__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 11px;
  height: 1px;
  background: var(--yb-accent);
}

.page-contact .ct-partner__list b {
  font-weight: 500;
  color: var(--yb-ink);
}

.page-contact .ct-partner__cta {
  margin: clamp(24px, 3.4vw, 34px) 0 0;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-contact .ct-partner__figure {
  margin: 0;
  border-radius: var(--yb-radius-sm);
  overflow: hidden;
  border: 1px solid var(--ct-line);
}

.page-contact .ct-partner__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  filter: saturate(0.62) contrast(1.05) brightness(0.9);
}

.page-contact .ct-partner__caption {
  margin: 10px 0 0;
  font-size: 13px;
  color: var(--yb-muted);
}

/* ---------- 焦点反馈 ---------- */
.page-contact a:focus-visible,
.page-contact .ct-channel:focus-within {
  outline: 2px solid var(--yb-signal);
  outline-offset: 3px;
  border-radius: 6px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 701px) {
  .page-contact .ct-channel__desc {
    font-size: 15px;
  }
}

@media (min-width: 901px) {
  .page-contact .ct-island__panel {
    grid-template-columns: minmax(0, 1.18fr) minmax(0, 0.82fr);
    align-items: start;
  }

  .page-contact .ct-partner__inner {
    grid-template-columns: minmax(0, 1.04fr) minmax(0, 0.96fr);
    align-items: center;
  }

  .page-contact .ct-brief__aside {
    margin-top: 58px;
  }
}

@media (max-width: 520px) {
  .page-contact .ct-channel {
    grid-template-columns: 36px minmax(0, 1fr);
    gap: 12px;
  }

  .page-contact .ct-channel__icon {
    width: 36px;
    height: 36px;
    border-radius: 12px;
  }

  .page-contact .ct-channel__badge {
    top: 12px;
    right: 10px;
    font-size: 10px;
    letter-spacing: 0.08em;
  }

  .page-contact .ct-record__list li span {
    min-width: 100%;
  }
}