.page-contact {
  --ct-gap: clamp(18px, 3vw, 28px);
  display: block;
  overflow-x: clip;
  color: var(--text);
  font-family: var(--font-body);
  background:
    radial-gradient(900px 460px at 82% -6%, rgba(47, 243, 214, 0.13), transparent 62%),
    radial-gradient(700px 420px at 4% 22%, rgba(255, 122, 47, 0.08), transparent 66%),
    var(--ink-900);
}

/* ---------- 即时响应窄带 ---------- */
.page-contact .ct-rail {
  border-bottom: 1px solid var(--line);
  background: linear-gradient(90deg, rgba(18, 32, 58, 0.95), rgba(10, 20, 36, 0.86));
}
.page-contact .ct-rail__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 14px;
  padding-block: 10px;
  font-size: 12px;
  letter-spacing: 0.05em;
  color: var(--muted);
}
.page-contact .ct-rail__dot {
  width: 8px;
  height: 8px;
  flex: 0 0 auto;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 12px rgba(47, 243, 214, 0.7);
  animation: ct-breathe 2.8s var(--ease) infinite;
}
.page-contact .ct-rail__label {
  color: var(--cyan);
  font-weight: 600;
}
.page-contact .ct-rail__time {
  color: var(--white);
  font-size: 12px;
}
.page-contact .ct-rail__split {
  width: 1px;
  height: 12px;
  background: var(--line);
}
.page-contact .ct-rail__squad {
  margin-left: auto;
  color: var(--muted);
  font-size: 12px;
}
@keyframes ct-breathe {
  0%, 100% { box-shadow: 0 0 0 0 rgba(47, 243, 214, 0.55); }
  50% { box-shadow: 0 0 0 7px rgba(47, 243, 214, 0); }
}

/* ---------- 框景首屏 ---------- */
.page-contact .ct-hero {
  padding-block: clamp(22px, 4vw, 40px) clamp(30px, 5vw, 56px);
}
.page-contact .breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 10px;
  margin: 0 0 18px;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--muted);
}
.page-contact .breadcrumb li + li::before {
  content: "/";
  margin-right: 10px;
  color: var(--line);
}
.page-contact .breadcrumb a {
  color: var(--muted);
  text-decoration: none;
}
.page-contact .breadcrumb a:hover,
.page-contact .breadcrumb a:focus-visible {
  color: var(--cyan);
}

.page-contact .ct-frame {
  position: relative;
  padding: clamp(24px, 4.6vw, 58px);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(158deg, rgba(18, 32, 58, 0.88), rgba(5, 7, 13, 0.74) 56%, rgba(14, 59, 58, 0.36));
  overflow: hidden;
}
.page-contact .ct-frame__beam {
  position: absolute;
  inset: 0 0 auto;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--cyan) 24%, var(--orange) 76%, transparent);
  opacity: 0.9;
}
.page-contact .ct-frame__tick {
  position: absolute;
  width: 26px;
  height: 26px;
  border: 1px solid var(--cyan);
  opacity: 0.5;
  pointer-events: none;
}
.page-contact .ct-frame__tick--a {
  left: 12px;
  bottom: 12px;
  border-right: 0;
  border-top: 0;
  border-bottom-left-radius: 8px;
}
.page-contact .ct-frame__tick--b {
  right: 12px;
  top: 12px;
  border-left: 0;
  border-bottom: 0;
  border-top-right-radius: 8px;
}
.page-contact .ct-frame h1 {
  margin: 14px 0 18px;
  max-width: 17em;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(29px, 6.2vw, 58px);
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--white);
}
.page-contact .ct-hero__lead {
  max-width: 44em;
  margin: 0;
  font-size: clamp(15px, 1.7vw, 17px);
  line-height: 1.9;
  color: var(--text);
}
.page-contact .ct-hero__acts {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(22px, 3vw, 30px);
}

/* ---------- 主分栏 ---------- */
.page-contact .ct-main {
  padding-block: clamp(30px, 5vw, 60px);
}
.page-contact .ct-main__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--ct-gap);
}

.page-contact .ct-desk {
  padding: clamp(18px, 3vw, 32px);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: linear-gradient(170deg, rgba(18, 32, 58, 0.96), rgba(10, 20, 36, 0.99));
  box-shadow: var(--shadow-raise);
}
.page-contact .ct-desk__visual {
  position: relative;
  margin: 0 0 22px;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--line);
}
.page-contact .ct-desk__visual img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 12 / 7;
  object-fit: cover;
}
.page-contact .ct-desk__cap {
  position: absolute;
  left: 0;
  bottom: 0;
  max-width: 100%;
  padding: 6px 12px;
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--text);
  background: rgba(5, 7, 13, 0.78);
  border-top-right-radius: var(--radius-sm);
}
.page-contact .ct-desk h2 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(21px, 3.4vw, 28px);
  letter-spacing: -0.015em;
  color: var(--white);
}
.page-contact .ct-desk__sub {
  margin: 0 0 22px;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--muted);
}
.page-contact .ct-field {
  margin-bottom: 16px;
}
.page-contact .ct-field label {
  display: block;
  margin-bottom: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--muted);
}
.page-contact .ct-field input,
.page-contact .ct-field textarea {
  width: 100%;
  min-height: 46px;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: rgba(5, 7, 13, 0.72);
  color: var(--white);
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.6;
  transition: border-color 0.25s var(--ease), transform 0.25s var(--ease), box-shadow 0.25s var(--ease);
}
.page-contact .ct-field textarea {
  resize: vertical;
  line-height: 1.75;
}
.page-contact .ct-field input::placeholder,
.page-contact .ct-field textarea::placeholder {
  color: rgba(143, 161, 191, 0.62);
}
.page-contact .ct-field input:focus,
.page-contact .ct-field textarea:focus {
  outline: none;
  border-color: var(--cyan);
  transform: translateY(-2px);
  box-shadow: 0 14px 24px -20px rgba(47, 243, 214, 0.95);
}
.page-contact .ct-field input:focus-visible,
.page-contact .ct-field textarea:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}
.page-contact .ct-desk__foot {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 16px;
  margin-top: 4px;
}
.page-contact .ct-desk__hint {
  flex: 1 1 210px;
  margin: 0;
  font-size: 13px;
  line-height: 1.75;
  color: var(--muted);
}
.page-contact [data-copy-email][data-copied="true"] {
  border-color: var(--cyan);
  color: var(--cyan);
}

/* ---------- 通道卡片列 ---------- */
.page-contact .ct-channels {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
  align-content: start;
}
.page-contact .ct-channels__aura {
  position: absolute;
  top: -6%;
  right: -10%;
  width: min(320px, 72%);
  aspect-ratio: 1;
  opacity: 0.2;
  pointer-events: none;
  z-index: 0;
  -webkit-mask-image: radial-gradient(circle, #000 38%, transparent 72%);
  mask-image: radial-gradient(circle, #000 38%, transparent 72%);
}
.page-contact .ct-channels__aura img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 50%;
}
.page-contact .ct-channels__head {
  position: relative;
  z-index: 1;
  margin-bottom: 4px;
}
.page-contact .ct-channels__head h2 {
  margin: 12px 0 10px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(21px, 3.6vw, 30px);
  letter-spacing: -0.015em;
  color: var(--white);
}
.page-contact .ct-channels__head p {
  margin: 0 0 6px;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--muted);
}
.page-contact .ct-chan {
  position: relative;
  z-index: 1;
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: rgba(18, 32, 58, 0.8);
  transition: transform 0.3s var(--ease), border-color 0.3s var(--ease), background 0.3s var(--ease), box-shadow 0.3s var(--ease);
}
.page-contact .ct-chan:hover {
  transform: translateY(-6px);
  border-color: var(--cyan);
  background: rgba(18, 32, 58, 0.96);
  box-shadow: 0 22px 40px -32px rgba(47, 243, 214, 0.85);
}
.page-contact .ct-chan__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}
.page-contact .ct-chan__num {
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--cyan);
}
.page-contact .ct-chan h3 {
  margin: 10px 0 8px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 19px;
  letter-spacing: -0.01em;
  color: var(--white);
}
.page-contact .ct-chan p {
  margin: 0 0 14px;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--text);
}
.page-contact .ct-chan__meta {
  display: grid;
  gap: 8px;
  margin: 0;
  padding-top: 12px;
  border-top: 1px dashed var(--line);
}
.page-contact .ct-chan__meta > div {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  font-size: 13px;
}
.page-contact .ct-chan__meta dt {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--muted);
}
.page-contact .ct-chan__meta dd {
  margin: 0;
  text-align: right;
  color: var(--white);
}
.page-contact .ct-chan__mail {
  word-break: break-all;
}

/* ---------- 提交之前 ---------- */
.page-contact .ct-prep {
  padding-block: clamp(34px, 6vw, 70px);
  border-block: 1px solid var(--line);
  background:
    linear-gradient(180deg, rgba(14, 59, 58, 0.66), rgba(14, 59, 58, 0.26));
}
.page-contact .ct-prep__head {
  max-width: 44em;
  margin-bottom: clamp(20px, 3vw, 32px);
}
.page-contact .ct-prep__head h2 {
  margin: 12px 0 12px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(23px, 4vw, 36px);
  letter-spacing: -0.02em;
  color: var(--white);
}
.page-contact .ct-prep__head p {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--text);
}
.page-contact .ct-prep__list {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.page-contact .ct-prep__list li {
  padding: 18px 20px;
  border: 1px solid rgba(47, 243, 214, 0.18);
  border-radius: var(--radius-md);
  background: rgba(5, 7, 13, 0.6);
  transition: border-color 0.3s var(--ease), transform 0.3s var(--ease);
}
.page-contact .ct-prep__list li:hover {
  transform: translateY(-4px);
  border-color: rgba(47, 243, 214, 0.5);
}
.page-contact .ct-prep__list .mono {
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--cyan);
}
.page-contact .ct-prep__list h3 {
  margin: 8px 0 8px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 17px;
  color: var(--white);
}
.page-contact .ct-prep__list p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--text);
}
.page-contact .ct-prep__foot {
  margin: clamp(20px, 3vw, 28px) 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
}
.page-contact .ct-prep__foot a,
.page-contact .ct-tail a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(47, 243, 214, 0.35);
}
.page-contact .ct-prep__foot a:hover,
.page-contact .ct-prep__foot a:focus-visible,
.page-contact .ct-tail a:hover,
.page-contact .ct-tail a:focus-visible {
  color: var(--white);
  border-bottom-color: var(--orange);
}

/* ---------- 合作对接 ---------- */
.page-contact .ct-biz {
  padding-block: clamp(34px, 6vw, 70px);
  background:
    linear-gradient(118deg, rgba(42, 27, 77, 0.76), rgba(5, 7, 13, 0.24) 70%);
}
.page-contact .ct-biz__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3vw, 36px);
}
.page-contact .ct-biz__intro h2 {
  margin: 12px 0 12px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(23px, 4vw, 34px);
  letter-spacing: -0.02em;
  color: var(--white);
}
.page-contact .ct-biz__intro p {
  margin: 0;
  font-size: 15px;
  line-height: 1.9;
  color: var(--text);
}
.page-contact .ct-biz__list {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 2px;
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}
.page-contact .ct-biz__list li {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 4px;
  padding: 14px 0 14px 16px;
  border-bottom: 1px solid var(--line);
  position: relative;
}
.page-contact .ct-biz__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 20px;
  width: 8px;
  height: 2px;
  background: var(--cyan);
}
.page-contact .ct-biz__list strong {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 15.5px;
  color: var(--white);
}
.page-contact .ct-biz__list span {
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
}
.page-contact .ct-biz__mail {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 16px;
  margin-top: clamp(22px, 3vw, 32px);
  padding-top: 18px;
  border-top: 1px solid rgba(47, 243, 214, 0.22);
}
.page-contact .ct-biz__mail-key {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--cyan);
}
.page-contact .ct-biz__mail-val {
  font-size: clamp(15px, 2.4vw, 19px);
  letter-spacing: 0.03em;
  color: var(--white);
  word-break: break-all;
}
.page-contact .ct-biz__mail-tip {
  flex: 1 1 260px;
  font-size: 13px;
  line-height: 1.75;
  color: var(--muted);
}

/* ---------- 地址与备案 ---------- */
.page-contact .ct-addr {
  padding-block: clamp(34px, 6vw, 70px);
  border-top: 1px solid var(--line);
  background: linear-gradient(158deg, rgba(62, 21, 38, 0.94), rgba(5, 7, 13, 0.97));
}
.page-contact .ct-addr__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 3vw, 40px);
}
.page-contact .ct-addr__lead h2 {
  margin: 12px 0 12px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(23px, 4vw, 34px);
  letter-spacing: -0.02em;
  color: var(--white);
}
.page-contact .ct-addr__lead p {
  margin: 0 0 18px;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--text);
}
.page-contact .ct-addr__block {
  display: block;
  margin: 0;
  padding: 16px 18px;
  border: 1px solid rgba(242, 247, 255, 0.16);
  border-left: 2px solid var(--orange);
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-style: normal;
  font-size: 15px;
  line-height: 1.8;
  letter-spacing: 0.02em;
  color: var(--white);
  background: rgba(5, 7, 13, 0.34);
}
.page-contact .ct-addr__list {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0;
  margin: 0;
  align-content: start;
}
.page-contact .ct-addr__list > div {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 6px 16px;
  padding: 12px 0;
  border-bottom: 1px solid rgba(198, 211, 232, 0.14);
}
.page-contact .ct-addr__list dt {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: rgba(198, 211, 232, 0.7);
}
.page-contact .ct-addr__list dd {
  margin: 0;
  font-size: 14.5px;
  color: var(--white);
  word-break: break-all;
}

/* ---------- 收口 ---------- */
.page-contact .ct-tail {
  padding-block: clamp(22px, 3vw, 34px);
  border-top: 1px solid var(--line);
  background: var(--ink-900);
}
.page-contact .ct-tail__inner p {
  margin: 0;
  max-width: 52em;
  font-size: 14px;
  line-height: 1.85;
  color: var(--muted);
}

/* ---------- 响应式 ---------- */
@media (min-width: 760px) {
  .page-contact .ct-prep__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-contact .ct-biz__list li {
    grid-template-columns: 15em minmax(0, 1fr);
    align-items: baseline;
    gap: 0 18px;
  }
  .page-contact .ct-addr__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0 clamp(18px, 3vw, 34px);
  }
}

@media (min-width: 900px) {
  .page-contact .ct-main__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: start;
    gap: clamp(24px, 3.4vw, 44px);
  }
  .page-contact .ct-biz__grid {
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
    align-items: start;
  }
  .page-contact .ct-addr__inner {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    align-items: start;
  }
}

@media (min-width: 1080px) {
  .page-contact .ct-desk {
    padding: 34px 34px 30px;
  }
  .page-contact .ct-chan {
    padding: 20px 24px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .ct-rail__dot {
    animation: none;
  }
  .page-contact *,
  .page-contact *::before,
  .page-contact *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .page-contact .ct-chan:hover,
  .page-contact .ct-prep__list li:hover,
  .page-contact .ct-field input:focus,
  .page-contact .ct-field textarea:focus {
    transform: none;
  }
}