.page-contact {
  --ct-gap: clamp(1.6rem, 4vw, 3rem);
  --ct-pad: clamp(2.2rem, 5.5vw, 3.8rem);
  background:
    radial-gradient(circle at 85% 4%, rgba(46, 242, 208, 0.07), transparent 42%),
    radial-gradient(circle at 6% 34%, rgba(255, 122, 47, 0.06), transparent 40%),
    var(--ink);
  padding-bottom: clamp(2.5rem, 6vw, 4.5rem);
}

/* ---------- 面包屑 ---------- */
.page-contact .breadcrumb {
  padding-top: clamp(1.1rem, 3vw, 1.9rem);
}

.page-contact .breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.55rem;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.08em;
  color: var(--mist);
}

.page-contact .breadcrumb-list a {
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-contact .breadcrumb-list a:hover {
  color: var(--cyan);
  border-bottom-color: var(--line-cyan);
}

.page-contact .breadcrumb-sep {
  color: rgba(127, 155, 184, 0.5);
}

.page-contact .breadcrumb-list [aria-current="page"] {
  color: var(--cyan);
}

/* ---------- 通用排版微调 ---------- */
.page-contact .section {
  padding-block: var(--ct-pad);
}

.page-contact .eyebrow {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--cyan);
  margin: 0 0 0.4rem;
}

.page-contact .section-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.5rem, 3.6vw, 2.2rem);
  line-height: 1.22;
  letter-spacing: 0.01em;
  color: var(--paper);
  margin: 0.35rem 0 0.7rem;
}

.page-contact .section-head {
  max-width: 62ch;
}

.page-contact .lede {
  font-size: clamp(0.94rem, 1.3vw, 1.02rem);
  line-height: 1.78;
  color: var(--mist);
  margin: 0;
}

/* ---------- 首屏框景 ---------- */
.page-contact .ct-hero {
  padding-block: clamp(1.2rem, 3.5vw, 2.2rem) 0;
}

.page-contact .ct-hero-frame {
  position: relative;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: clamp(1.3rem, 3.6vw, 2.8rem);
  background:
    radial-gradient(circle at 4% 0%, rgba(46, 242, 208, 0.11), transparent 52%),
    radial-gradient(circle at 96% 100%, rgba(255, 122, 47, 0.1), transparent 52%),
    linear-gradient(160deg, var(--ink-soft), var(--ink-deep));
  box-shadow: var(--shadow-panel);
  overflow: hidden;
}

.page-contact .ct-hero-frame::before,
.page-contact .ct-hero-frame::after {
  content: "";
  position: absolute;
  width: 46px;
  height: 46px;
  pointer-events: none;
}

.page-contact .ct-hero-frame::before {
  top: 0;
  left: 0;
  border-top: 2px solid var(--cyan);
  border-left: 2px solid var(--cyan);
  border-top-left-radius: var(--radius);
  opacity: 0.85;
}

.page-contact .ct-hero-frame::after {
  right: 0;
  bottom: 0;
  border-right: 2px solid var(--orange);
  border-bottom: 2px solid var(--orange);
  border-bottom-right-radius: var(--radius);
  opacity: 0.85;
}

.page-contact .ct-hero-grid {
  display: grid;
  gap: var(--ct-gap);
  align-items: start;
}

.page-contact .ct-hero-copy h1 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2rem, 6.4vw, 3.4rem);
  line-height: 1.06;
  letter-spacing: -0.005em;
  color: var(--paper);
  margin: 0.6rem 0 1rem;
}

.page-contact .ct-hero-copy .lede {
  max-width: 46ch;
  color: rgba(242, 233, 218, 0.78);
}

.page-contact .ct-quick {
  display: grid;
  gap: 0.75rem;
  margin-top: clamp(1.4rem, 3vw, 1.9rem);
}

.page-contact .ct-quick-item {
  display: block;
  padding: 0.95rem 1.1rem;
  border: 1px solid var(--line-cyan);
  border-radius: var(--radius-sm);
  background: rgba(7, 20, 38, 0.72);
  text-decoration: none;
  transition: border-color 0.25s var(--ease), background 0.25s var(--ease), transform 0.25s var(--ease);
}

.page-contact .ct-quick-item:hover,
.page-contact .ct-quick-item:focus-visible {
  border-color: var(--cyan);
  background: rgba(46, 242, 208, 0.08);
  transform: translateY(-2px);
}

.page-contact .ct-quick-key {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--mist);
  margin-bottom: 0.35rem;
}

.page-contact .ct-quick-val {
  display: block;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: clamp(0.9rem, 2.3vw, 1.14rem);
  letter-spacing: 0.01em;
  color: var(--cyan);
  word-break: break-word;
}

.page-contact .ct-quick-item--accent {
  border-color: rgba(255, 122, 47, 0.42);
}

.page-contact .ct-quick-item--accent:hover,
.page-contact .ct-quick-item--accent:focus-visible {
  border-color: var(--orange);
  background: rgba(255, 122, 47, 0.1);
}

.page-contact .ct-quick-item--accent .ct-quick-val {
  color: var(--orange);
}

/* 暖纸清单面板 */
.page-contact .ct-hero-panel {
  padding: clamp(1.15rem, 2.8vw, 1.7rem);
  border-radius: var(--radius);
  box-shadow: 0 18px 44px -28px rgba(0, 0, 0, 0.95);
}

.page-contact .ct-panel-title {
  font-family: var(--font-display);
  font-size: 1.02rem;
  letter-spacing: 0.02em;
  color: var(--paper-ink);
  margin: 0;
}

.page-contact .ct-panel-note {
  margin: 0.9rem 0 0;
  font-size: 0.82rem;
  line-height: 1.7;
  color: rgba(23, 32, 42, 0.68);
  padding-top: 0.8rem;
  border-top: 1px dashed rgba(23, 32, 42, 0.24);
}

.page-contact .ct-check {
  list-style: none;
  margin: 1rem 0 0;
  padding: 0;
  display: grid;
  gap: 0.68rem;
}

.page-contact .ct-check li {
  position: relative;
  padding-left: 1.65rem;
  font-size: 0.93rem;
  line-height: 1.62;
  color: var(--paper-ink);
}

.page-contact .ct-check li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.4em;
  width: 0.66rem;
  height: 0.66rem;
  border: 1.5px solid rgba(23, 32, 42, 0.55);
  border-radius: 2px;
  background: rgba(46, 242, 208, 0.55);
}

/* ---------- 联系渠道 ---------- */
.page-contact .ct-channel-list {
  list-style: none;
  margin: clamp(1.5rem, 3.5vw, 2.1rem) 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-contact .ct-channel {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  padding: clamp(1.1rem, 2.6vw, 1.7rem);
  background: var(--ink-soft);
  transition: background 0.25s var(--ease);
}

.page-contact .ct-channel:hover {
  background: var(--ink-deep);
}

.page-contact .ct-channel::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--cyan), transparent 70%);
  opacity: 0.55;
}

.page-contact .ct-channel:nth-child(2)::before {
  background: linear-gradient(90deg, var(--orange), transparent 70%);
}

.page-contact .ct-channel:nth-child(3)::before {
  background: linear-gradient(90deg, var(--gold), transparent 70%);
}

.page-contact .ct-channel-num {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  color: var(--gold);
}

.page-contact .ct-channel-key {
  margin: 0;
  font-family: var(--font-display);
  font-size: 0.86rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--mist);
}

.page-contact .ct-channel-val {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(0.96rem, 2vw, 1.18rem);
  font-weight: 600;
  line-height: 1.45;
  color: var(--cyan);
  text-decoration: none;
  word-break: break-word;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s var(--ease), color 0.2s var(--ease);
}

.page-contact .ct-channel-val:hover {
  border-bottom-color: var(--line-cyan);
}

.page-contact .ct-channel:nth-child(2) .ct-channel-val {
  color: var(--orange);
}

.page-contact .ct-channel:nth-child(2) .ct-channel-val:hover {
  border-bottom-color: rgba(255, 122, 47, 0.45);
}

.page-contact .ct-channel-val--plain {
  color: var(--paper);
  font-family: var(--font-body);
  font-size: clamp(0.94rem, 1.8vw, 1.05rem);
  font-weight: 500;
  word-break: break-word;
}

.page-contact .ct-channel-desc {
  margin: 0;
  font-size: 0.88rem;
  line-height: 1.75;
  color: var(--mist);
}

.page-contact .ct-signal {
  margin: clamp(1.6rem, 4vw, 2.4rem) 0 0;
  aspect-ratio: 2 / 1;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  position: relative;
}

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

.page-contact .ct-signal .media-caption {
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  padding: 0.7rem 1rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  color: var(--paper);
  background: linear-gradient(180deg, rgba(7, 20, 38, 0), rgba(7, 20, 38, 0.92));
}

/* ---------- 咨询准备 ---------- */
.page-contact .ct-split {
  display: grid;
  gap: var(--ct-gap);
  align-items: start;
}

.page-contact .ct-steps {
  list-style: none;
  margin: clamp(1.4rem, 3vw, 1.9rem) 0 0;
  padding: 0;
}

.page-contact .ct-steps li {
  display: grid;
  grid-template-columns: 2.4rem minmax(0, 1fr);
  gap: 0.9rem;
  padding-block: 1rem;
  border-top: 1px solid var(--line-soft);
}

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

.page-contact .ct-step-num {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  letter-spacing: 0.1em;
  color: var(--cyan);
  padding-top: 0.2rem;
}

.page-contact .ct-steps h3 {
  margin: 0 0 0.32rem;
  font-family: var(--font-display);
  font-size: 1.04rem;
  letter-spacing: 0.02em;
  color: var(--paper);
}

.page-contact .ct-steps p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.78;
  color: var(--mist);
}

.page-contact .ct-inline-link {
  margin: 1.3rem 0 0;
  font-size: 0.9rem;
  line-height: 1.75;
  color: var(--mist);
}

.page-contact .ct-inline-link a,
.page-contact .ct-partners-note a,
.page-contact .ct-faq p a,
.page-contact .ct-service-back a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--line-cyan);
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-contact .ct-inline-link a:hover,
.page-contact .ct-partners-note a:hover,
.page-contact .ct-faq p a:hover,
.page-contact .ct-service-back a:hover {
  color: var(--orange);
  border-bottom-color: rgba(255, 122, 47, 0.5);
}

.page-contact .ct-side {
  display: grid;
  gap: 1.1rem;
}

.page-contact .ct-note-paper {
  padding: clamp(1.1rem, 2.6vw, 1.6rem);
  border-radius: var(--radius);
}

.page-contact .ct-figure {
  margin: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--ink-deep);
}

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

.page-contact .ct-figure .media-caption {
  padding: 0.7rem 1rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.05em;
  color: var(--mist);
  border-top: 1px solid var(--line-soft);
}

/* ---------- 订阅球队与版本 ---------- */
.page-contact .ct-sub-grid {
  display: grid;
  gap: 1rem;
  margin-top: clamp(1.5rem, 3.5vw, 2.1rem);
}

.page-contact .ct-sub-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  padding: clamp(1.1rem, 2.6vw, 1.5rem);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(160deg, rgba(15, 29, 51, 0.96), rgba(7, 20, 38, 0.96));
  transition: border-color 0.25s var(--ease), transform 0.25s var(--ease);
}

.page-contact .ct-sub-card:hover {
  border-color: var(--line-cyan);
  transform: translateY(-2px);
}

.page-contact .ct-sub-card:nth-child(2) {
  border-color: rgba(197, 58, 74, 0.4);
}

.page-contact .ct-sub-card:nth-child(3) {
  border-color: rgba(231, 183, 90, 0.36);
}

.page-contact .ct-sub-card .round-badge {
  align-self: flex-start;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  color: var(--ink);
  background: var(--cyan);
  padding: 0.22rem 0.55rem;
  border-radius: 3px;
}

.page-contact .ct-sub-card:nth-child(2) .round-badge {
  background: var(--saffron);
  color: var(--paper);
}

.page-contact .ct-sub-card:nth-child(3) .round-badge {
  background: var(--gold);
}

.page-contact .ct-sub-card h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.06rem;
  letter-spacing: 0.02em;
  color: var(--paper);
}

.page-contact .ct-sub-card p {
  margin: 0;
  font-size: 0.88rem;
  line-height: 1.75;
  color: var(--mist);
}

/* 折叠问答 */
.page-contact .ct-faq {
  display: grid;
  gap: 0.6rem;
  margin-top: clamp(1.4rem, 3.5vw, 2rem);
}

.page-contact .ct-faq details {
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: rgba(11, 18, 32, 0.66);
  padding: 0.9rem 1.05rem;
  transition: border-color 0.25s var(--ease), background 0.25s var(--ease);
}

.page-contact .ct-faq details[open] {
  border-color: var(--line-cyan);
  background: rgba(15, 29, 51, 0.9);
}

.page-contact .ct-faq summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-display);
  font-size: 1rem;
  letter-spacing: 0.02em;
  color: var(--paper);
}

.page-contact .ct-faq summary::-webkit-details-marker {
  display: none;
}

.page-contact .ct-faq summary::after {
  content: "+";
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 1.1rem;
  line-height: 1;
  color: var(--cyan);
}

.page-contact .ct-faq details[open] summary::after {
  content: "−";
}

.page-contact .ct-faq summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 4px;
  border-radius: 2px;
}

.page-contact .ct-faq p {
  margin: 0.75rem 0 0;
  font-size: 0.89rem;
  line-height: 1.78;
  color: var(--mist);
}

/* ---------- 合作 ---------- */
.page-contact .ct-partners-panel {
  position: relative;
  padding: clamp(1.4rem, 3.6vw, 2.6rem);
  border: 1px solid var(--line-cyan);
  border-radius: var(--radius);
  background:
    radial-gradient(circle at 100% 0%, rgba(46, 242, 208, 0.12), transparent 48%),
    linear-gradient(150deg, var(--ink-soft), var(--ink-deep));
  overflow: hidden;
}

.page-contact .ct-partners-head {
  max-width: 66ch;
}

.page-contact .ct-partners-cols {
  display: grid;
  gap: 1.4rem;
  margin-top: clamp(1.4rem, 3.5vw, 2rem);
}

.page-contact .ct-partners-col h3 {
  margin: 0 0 0.6rem;
  font-family: var(--font-display);
  font-size: 0.94rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gold);
}

.page-contact .ct-partners-col ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.55rem;
}

.page-contact .ct-partners-col li {
  position: relative;
  padding-left: 1.1rem;
  font-size: 0.9rem;
  line-height: 1.7;
  color: rgba(242, 233, 218, 0.86);
}

.page-contact .ct-partners-col li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 0.42rem;
  height: 0.42rem;
  background: var(--cyan);
  transform: rotate(45deg);
}

.page-contact .ct-partners-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem;
  margin-top: clamp(1.3rem, 3vw, 1.9rem);
  padding-top: 1.2rem;
  border-top: 1px solid var(--line-soft);
}

.page-contact .ct-partners-note {
  margin: 0;
  font-size: 0.86rem;
  line-height: 1.7;
  color: var(--mist);
  flex: 1 1 16rem;
}

/* ---------- 服务范围条带 ---------- */
.page-contact .ct-service {
  margin-top: clamp(2.2rem, 5.5vw, 3.8rem);
  padding-block: clamp(2rem, 5vw, 3.2rem);
  background:
    linear-gradient(180deg, rgba(11, 18, 32, 0.2), var(--ink-deep)),
    var(--ink-deep);
  border-top: 1px solid var(--line-cyan);
  border-bottom: 1px solid var(--line-soft);
  position: relative;
}

.page-contact .ct-service::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 0;
  width: min(42%, 420px);
  height: 2px;
  background: linear-gradient(90deg, var(--cyan), transparent);
}

.page-contact .ct-service-head {
  max-width: 58ch;
}

.page-contact .ct-service-grid {
  display: grid;
  gap: 1px;
  margin-top: clamp(1.4rem, 3.5vw, 2rem);
  background: var(--line-soft);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-contact .ct-service-item {
  background: var(--ink-soft);
  padding: clamp(1.1rem, 2.6vw, 1.6rem);
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

.page-contact .ct-service-key {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--mist);
}

.page-contact .ct-service-val {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.24rem, 3vw, 1.62rem);
  line-height: 1.25;
  color: var(--cyan);
  letter-spacing: 0.01em;
}

.page-contact .ct-service-item:nth-child(2) .ct-service-val {
  color: var(--gold);
}

.page-contact .ct-service-item:nth-child(3) .ct-service-val {
  color: var(--orange);
}

.page-contact .ct-service-desc {
  margin: 0;
  font-size: 0.87rem;
  line-height: 1.75;
  color: var(--mist);
}

.page-contact .ct-service-base {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.6rem 1.4rem;
  margin-top: 1.4rem;
  padding-top: 1rem;
  border-top: 1px solid var(--line-soft);
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.05em;
  color: var(--mist);
}

.page-contact .ct-service-base p {
  margin: 0;
}

.page-contact .ct-service-icp {
  color: rgba(231, 183, 90, 0.9);
}

.page-contact .ct-service-back {
  margin: 1.1rem 0 0;
  font-size: 0.86rem;
}

/* ---------- 返回顶部 ---------- */
.page-contact .to-top {
  position: fixed;
  right: clamp(0.9rem, 3vw, 1.8rem);
  bottom: clamp(0.9rem, 3vw, 1.8rem);
  z-index: 30;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.62rem 0.95rem;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.1em;
  color: var(--ink);
  background: var(--cyan);
  border-radius: var(--radius-sm);
  text-decoration: none;
  box-shadow: 0 14px 30px -18px rgba(46, 242, 208, 0.9);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: opacity 0.25s var(--ease), transform 0.25s var(--ease), visibility 0.25s;
}

.page-contact .to-top[data-visible] {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

/* ---------- 断点 ---------- */
@media (min-width: 640px) {
  .page-contact .ct-quick {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-contact .ct-channel-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-contact .ct-channel:last-child {
    grid-column: 1 / -1;
  }

  .page-contact .ct-sub-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-contact .ct-partners-cols {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-contact .ct-service-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-contact .ct-hero-grid {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
  }

  .page-contact .ct-channel-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .ct-channel:last-child {
    grid-column: auto;
  }

  .page-contact .ct-split {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  }

  .page-contact .ct-sub-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .ct-service-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 420px) {
  .page-contact .ct-hero-frame::before,
  .page-contact .ct-hero-frame::after {
    width: 30px;
    height: 30px;
  }

  .page-contact .ct-steps li {
    grid-template-columns: 1.9rem minmax(0, 1fr);
    gap: 0.6rem;
  }

  .page-contact .ct-quick-val,
  .page-contact .ct-channel-val {
    font-size: 0.88rem;
  }
}