.page-contact {
  --ct-card: rgba(10, 39, 64, .78);
  --ct-card-deep: rgba(4, 18, 31, .9);
  --ct-soft-line: rgba(138, 166, 184, .22);
  display: block;
  position: relative;
  overflow-x: clip;
  color: var(--foam-050);
  font-family: var(--font-body);
  background:
    radial-gradient(120% 74% at 88% 0%, rgba(47, 227, 214, .10), transparent 62%),
    radial-gradient(90% 60% at 4% 42%, rgba(255, 106, 69, .07), transparent 66%),
    linear-gradient(180deg, var(--abyss-950) 0%, #061a2c 42%, var(--abyss-950) 100%);
}

/* ---------- 页首 ---------- */
.page-contact .ct-hero {
  position: relative;
  padding: calc(var(--header-h) + clamp(26px, 5vw, 54px)) 0 clamp(42px, 6vw, 78px);
}

.page-contact .ct-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(47, 227, 214, .055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(47, 227, 214, .055) 1px, transparent 1px);
  background-size: 64px 64px;
  -webkit-mask-image: linear-gradient(180deg, rgba(0, 0, 0, .9), transparent 76%);
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, .9), transparent 76%);
}

.page-contact .ct-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: calc(var(--header-h) + 8px);
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(47, 227, 214, .34), rgba(255, 106, 69, .22), transparent);
  transform: rotate(-1.2deg);
  transform-origin: left center;
  pointer-events: none;
}

.page-contact .ct-hero > .shell {
  position: relative;
  z-index: 1;
}

.page-contact .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: clamp(24px, 4vw, 46px);
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--slate-400);
}

.page-contact .breadcrumb a {
  color: var(--slate-400);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-contact .breadcrumb a:hover,
.page-contact .breadcrumb a:focus-visible {
  color: var(--cyan-400);
  border-bottom-color: var(--line-cool-strong);
}

.page-contact .breadcrumb-sep { color: var(--deep-600); }
.page-contact .breadcrumb-current { color: var(--cyan-200); }

.page-contact .ct-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 4vw, 48px);
  align-items: center;
}

.page-contact .ct-hero-title {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2.3rem, 6.4vw, 4.9rem);
  line-height: 1.02;
  letter-spacing: -0.02em;
  color: var(--foam-050);
}

.page-contact .ct-hero-sub {
  margin: 14px 0 0;
  font-size: clamp(1rem, 2vw, 1.3rem);
  font-weight: 300;
  letter-spacing: .01em;
  color: var(--cyan-400);
}

.page-contact .ct-hero-lede {
  margin: 18px 0 0;
  max-width: 34em;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.78;
  color: rgba(234, 245, 246, .82);
}

.page-contact .ct-hero-points {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
}

.page-contact .ct-hero-points li {
  display: flex;
  align-items: center;
  gap: 9px;
  font-size: 13.5px;
  color: var(--cyan-200);
}

.page-contact .ct-hero-points li::before {
  content: "";
  flex: none;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--cyan-400);
  box-shadow: 0 0 0 4px rgba(47, 227, 214, .14);
}

.page-contact .ct-hero-visual {
  margin: 0;
  border-radius: var(--r-xl);
  overflow: hidden;
  border: 1px solid var(--line-cool);
  background: linear-gradient(155deg, rgba(10, 39, 64, .92), rgba(4, 18, 31, .96));
  box-shadow: 0 30px 64px -40px rgba(47, 227, 214, .55);
}

.page-contact .ct-hero-visual img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- 区块骨架 ---------- */
.page-contact .ct-section {
  position: relative;
  padding: clamp(52px, 7vw, 94px) 0;
}

.page-contact .ct-section--cool {
  background: linear-gradient(180deg, rgba(10, 39, 64, .58), rgba(4, 18, 31, 0) 86%);
}

.page-contact .ct-section--warm {
  background: linear-gradient(180deg, rgba(255, 106, 69, .085), rgba(4, 18, 31, 0) 84%);
}

.page-contact .ct-head {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 8px;
  margin-bottom: clamp(26px, 4vw, 44px);
  max-width: 62ch;
}

.page-contact .ct-head-index {
  font-size: 12px;
  letter-spacing: .24em;
  color: var(--cyan-400);
}

.page-contact .ct-head-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.7rem, 3.4vw, 2.6rem);
  line-height: 1.12;
  letter-spacing: -0.02em;
}

.page-contact .ct-head-note {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--slate-400);
}

/* ---------- 联系通道 ---------- */
.page-contact .ct-desk {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 3.4vw, 40px);
  align-items: start;
}

.page-contact .ct-lines {
  display: grid;
  gap: 14px;
}

.page-contact .ct-line {
  position: relative;
  overflow: hidden;
  padding: clamp(20px, 2.6vw, 30px);
  border-radius: var(--r-lg);
  border: 1px solid var(--ct-soft-line);
  background: linear-gradient(150deg, var(--ct-card), var(--ct-card-deep));
  transition: border-color var(--dur) var(--ease);
}

.page-contact .ct-line::before {
  content: "";
  position: absolute;
  left: 0;
  top: 24%;
  width: 3px;
  height: 0;
  border-radius: 0 3px 3px 0;
  background: var(--cyan-400);
  transition: height var(--dur) var(--ease), background-color var(--dur) var(--ease);
}

.page-contact .ct-line:hover::before,
.page-contact .ct-line:focus-within::before { height: 52%; }

.page-contact .ct-line--phone { border-color: var(--line-warm); }
.page-contact .ct-line--phone::before { background: var(--coral-500); }
.page-contact .ct-line--hours::before { background: var(--amber-300); }

.page-contact .ct-line-label {
  margin: 0 0 10px;
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--slate-400);
}

.page-contact .ct-line-value {
  display: block;
  font-family: var(--font-data);
  text-decoration: none;
  letter-spacing: .01em;
  word-break: break-all;
  transition: color var(--dur) var(--ease);
}

.page-contact .ct-line-value--mail {
  font-size: clamp(1rem, 2.6vw, 1.35rem);
  font-weight: 500;
  color: var(--cyan-200);
}

.page-contact .ct-line-value--phone {
  font-size: clamp(2.1rem, 8.4vw, 3.5rem);
  font-weight: 700;
  line-height: 1.02;
  color: var(--coral-500);
}

.page-contact .ct-line-value--hours {
  font-size: clamp(1.5rem, 4.6vw, 2.15rem);
  font-weight: 600;
  line-height: 1.1;
  color: var(--cyan-400);
}

.page-contact .ct-line-value--mail:hover,
.page-contact .ct-line-value--mail:focus-visible { color: var(--foam-050); }

.page-contact .ct-line-value--phone:hover,
.page-contact .ct-line-value--phone:focus-visible { color: var(--coral-200); }

.page-contact .ct-line-note {
  margin: 12px 0 0;
  font-size: 14px;
  line-height: 1.72;
  color: rgba(234, 245, 246, .72);
}

/* ---------- 问题类型控制台 ---------- */
.page-contact .ct-console {
  padding: clamp(20px, 2.8vw, 32px);
  border-radius: var(--r-lg);
  border: 1px solid var(--line-cool);
  background: linear-gradient(160deg, rgba(10, 39, 64, .74), rgba(4, 18, 31, .92));
}

.page-contact .ct-console-title {
  margin: 0 0 18px;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: .01em;
  color: var(--foam-050);
}

.page-contact .ct-console-body { position: relative; }

.page-contact .ct-radio {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

.page-contact .ct-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 20px;
}

.page-contact .ct-tab {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 16px 9px 13px;
  border-radius: var(--pill);
  border: 1px solid var(--ct-soft-line);
  background: rgba(4, 18, 31, .52);
  color: var(--slate-400);
  font-size: 13.5px;
  cursor: pointer;
  user-select: none;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}

.page-contact .ct-tab-idx {
  font-size: 11px;
  letter-spacing: .1em;
  opacity: .72;
}

.page-contact .ct-tab:hover {
  color: var(--cyan-200);
  border-color: var(--line-cool-strong);
}

.page-contact #ct-issue-access:checked ~ .ct-tabs .ct-tab[for="ct-issue-access"],
.page-contact #ct-issue-index:checked ~ .ct-tabs .ct-tab[for="ct-issue-index"],
.page-contact #ct-issue-sub:checked ~ .ct-tabs .ct-tab[for="ct-issue-sub"] {
  color: var(--abyss-950);
  font-weight: 600;
  background: var(--cyan-400);
  border-color: var(--cyan-400);
}

.page-contact #ct-issue-access:checked ~ .ct-tabs .ct-tab[for="ct-issue-access"] .ct-tab-idx,
.page-contact #ct-issue-index:checked ~ .ct-tabs .ct-tab[for="ct-issue-index"] .ct-tab-idx,
.page-contact #ct-issue-sub:checked ~ .ct-tabs .ct-tab[for="ct-issue-sub"] .ct-tab-idx { opacity: .8; }

.page-contact #ct-issue-access:focus-visible ~ .ct-tabs .ct-tab[for="ct-issue-access"],
.page-contact #ct-issue-index:focus-visible ~ .ct-tabs .ct-tab[for="ct-issue-index"],
.page-contact #ct-issue-sub:focus-visible ~ .ct-tabs .ct-tab[for="ct-issue-sub"] {
  outline: 2px solid var(--cyan-200);
  outline-offset: 2px;
}

.page-contact .ct-panel { display: none; }

.page-contact #ct-issue-access:checked ~ .ct-panels .ct-panel--access,
.page-contact #ct-issue-index:checked ~ .ct-panels .ct-panel--index,
.page-contact #ct-issue-sub:checked ~ .ct-panels .ct-panel--sub { display: block; }

.page-contact .ct-panel-title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: clamp(1.12rem, 2vw, 1.38rem);
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--foam-050);
}

.page-contact .ct-panel-lede {
  margin: 0 0 16px;
  font-size: 14.5px;
  line-height: 1.75;
  color: rgba(234, 245, 246, .76);
  max-width: 46em;
}

.page-contact .ct-panel-lede a {
  color: var(--cyan-400);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-contact .ct-panel-lede a:hover,
.page-contact .ct-panel-lede a:focus-visible { color: var(--cyan-200); }

.page-contact .ct-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-contact .ct-list li {
  position: relative;
  padding: 10px 14px 10px 36px;
  border-radius: var(--r-sm);
  border: 1px solid rgba(47, 227, 214, .16);
  background: rgba(20, 72, 110, .22);
  font-size: 14px;
  line-height: 1.6;
  color: var(--cyan-200);
}

.page-contact .ct-list li::before {
  content: "";
  position: absolute;
  left: 15px;
  top: 50%;
  width: 8px;
  height: 8px;
  margin-top: -4px;
  border-radius: 2px;
  background: var(--cyan-400);
  transform: rotate(45deg);
}

/* ---------- 响应节奏 ---------- */
.page-contact .ct-rhythm {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 46px);
  align-items: center;
}

.page-contact .ct-rhythm-copy p {
  margin: 0 0 16px;
  max-width: 40em;
  font-size: 15.5px;
  line-height: 1.8;
  color: rgba(234, 245, 246, .8);
}

.page-contact .ct-rhythm-tags {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
}

.page-contact .ct-rhythm-figure {
  margin: 0;
  border-radius: var(--r-lg);
  overflow: hidden;
  border: 1px solid var(--line-warm);
  background: linear-gradient(160deg, rgba(10, 39, 64, .92), rgba(4, 18, 31, .96));
}

.page-contact .ct-rhythm-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- 合作与内容建议 ---------- */
.page-contact .ct-coop-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
}

.page-contact .ct-coop {
  padding: clamp(20px, 2.4vw, 28px);
  border-radius: var(--r-lg);
  border: 1px solid var(--ct-soft-line);
  background: linear-gradient(165deg, rgba(10, 39, 64, .72), rgba(4, 18, 31, .92));
  transition: border-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-contact .ct-coop:hover {
  border-color: var(--line-cool-strong);
  transform: translateY(-3px);
}

.page-contact .ct-coop-tag {
  display: inline-block;
  margin: 0 0 14px;
  padding: 5px 12px;
  border-radius: var(--pill);
  border: 1px solid var(--line-cool);
  background: rgba(47, 227, 214, .1);
  color: var(--cyan-400);
  font-size: 11.5px;
  letter-spacing: .1em;
}

.page-contact .ct-coop-tag--warm {
  border-color: var(--line-warm);
  background: rgba(255, 106, 69, .12);
  color: var(--coral-200);
}

.page-contact .ct-coop-title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: 1.12rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.page-contact .ct-coop-text {
  margin: 0 0 14px;
  font-size: 14px;
  line-height: 1.75;
  color: rgba(234, 245, 246, .74);
}

.page-contact .ct-coop-need {
  margin: 0;
  padding-top: 14px;
  border-top: 1px dashed var(--ct-soft-line);
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--slate-400);
}

.page-contact .ct-coop-foot {
  margin: clamp(22px, 3vw, 32px) 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--slate-400);
}

.page-contact .ct-coop-foot a {
  color: var(--cyan-400);
  text-decoration: none;
  border-bottom: 1px solid var(--line-cool-strong);
  transition: color var(--dur) var(--ease);
}

.page-contact .ct-coop-foot a:hover,
.page-contact .ct-coop-foot a:focus-visible { color: var(--cyan-200); }

/* ---------- 来函地址 ---------- */
.page-contact .ct-letter {
  position: relative;
  overflow: hidden;
  padding: clamp(26px, 4vw, 48px);
  border-radius: var(--r-xl);
  border: 1px solid var(--line-warm);
  background:
    linear-gradient(140deg, rgba(255, 106, 69, .13), rgba(4, 18, 31, 0) 58%),
    linear-gradient(180deg, rgba(10, 39, 64, .82), rgba(4, 18, 31, .94));
}

.page-contact .ct-letter::after {
  content: "";
  position: absolute;
  right: -90px;
  bottom: -100px;
  width: 280px;
  height: 280px;
  border-radius: 50%;
  border: 1px solid rgba(255, 106, 69, .22);
  background: radial-gradient(circle, rgba(255, 106, 69, .16), transparent 68%);
  pointer-events: none;
}

.page-contact .ct-letter-label {
  margin: 0 0 14px;
  font-size: 12px;
  letter-spacing: .2em;
  color: var(--coral-200);
}

.page-contact .ct-letter-addr {
  position: relative;
  z-index: 1;
  margin: 0 0 18px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.45rem, 4vw, 2.4rem);
  line-height: 1.24;
  letter-spacing: -0.02em;
  color: var(--foam-050);
}

.page-contact .ct-letter-note {
  position: relative;
  z-index: 1;
  margin: 0;
  max-width: 48em;
  font-size: 14.5px;
  line-height: 1.78;
  color: rgba(234, 245, 246, .76);
}

.page-contact .ct-letter-note a {
  color: var(--coral-200);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-contact .ct-letter-note a:hover,
.page-contact .ct-letter-note a:focus-visible { color: var(--foam-050); }

/* ---------- 响应式 ---------- */
@media (min-width: 760px) {
  .page-contact .ct-coop-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-contact .ct-hero-grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
    gap: clamp(34px, 5vw, 72px);
  }

  .page-contact .ct-rhythm {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr);
  }
}

@media (min-width: 1000px) {
  .page-contact .ct-desk {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  }
}

@media (min-width: 1080px) {
  .page-contact .ct-coop-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 560px) {
  .page-contact .ct-hero::after { display: none; }

  .page-contact .ct-tabs {
    flex-direction: column;
    align-items: stretch;
  }

  .page-contact .ct-tab { justify-content: flex-start; }

  .page-contact .ct-list li { font-size: 13.5px; }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .ct-line,
  .page-contact .ct-line::before,
  .page-contact .ct-line-value,
  .page-contact .ct-tab,
  .page-contact .ct-coop,
  .page-contact .breadcrumb a,
  .page-contact .ct-coop-foot a {
    transition: none;
  }

  .page-contact .ct-coop:hover { transform: none; }
}
</style>