.page-contact {
  --ct-gap: clamp(20px, 3vw, 40px);
  --ct-rule: rgba(43, 44, 70, 1);
  --ct-ink-soft: #2A2740;
  --ct-paper-ink: #14122A;
  --ct-paper-muted: #4E4966;
}

/* ---------- 首屏 ---------- */
.page-contact .ct-hero {
  position: relative;
  background-image:
    repeating-linear-gradient(to right, rgba(43, 44, 70, .5) 0 1px, transparent 1px 120px),
    repeating-linear-gradient(to bottom, rgba(43, 44, 70, .3) 0 1px, transparent 1px 120px);
  background-position: left top;
}

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

.page-contact .ct-hero__copy h1 {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(2.4rem, 6vw, 5rem);
  line-height: .98;
  letter-spacing: -.02em;
  margin: .7rem 0 1rem;
  color: var(--text);
}

.page-contact .ct-hero__lead {
  margin: 0;
  max-width: 52ch;
  color: var(--muted);
  font-size: clamp(1rem, 1.2vw, 1.125rem);
  line-height: 1.75;
}

.page-contact .ct-hero__quick {
  display: grid;
  gap: 14px;
  margin: clamp(24px, 3.5vw, 40px) 0 0;
  padding-top: 18px;
  border-top: 1px solid var(--line);
}

.page-contact .ct-hero__quick dt {
  font-family: var(--font-mono);
  font-size: .68rem;
  letter-spacing: .18em;
  color: var(--cyan);
  margin: 0;
}

.page-contact .ct-hero__quick dd {
  margin: .4rem 0 0;
  font-family: var(--font-mono);
  font-size: .95rem;
  line-height: 1.5;
  color: var(--text);
  overflow-wrap: anywhere;
}

.page-contact .ct-hero__media {
  border: 1px solid var(--line);
  box-shadow: var(--shadow-soft);
}

.page-contact .ct-hero__hint {
  margin: .8rem 0 0;
  font-size: .86rem;
  color: var(--muted);
  overflow-wrap: anywhere;
}

/* ---------- 三条通道 ---------- */
.page-contact .ct-channels {
  list-style: none;
  margin: clamp(32px, 5vw, 64px) 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-contact .ct-channel {
  background: var(--ink);
  padding: clamp(20px, 2.6vw, 32px);
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.page-contact .ct-channel__idx {
  font-size: .72rem;
  letter-spacing: .24em;
  color: var(--blue);
}

.page-contact .ct-channel__t {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(1.15rem, 2vw, 1.5rem);
  letter-spacing: -.01em;
  line-height: 1.15;
}

.page-contact .ct-channel__t a {
  color: var(--text);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .22s var(--ease), border-color .22s var(--ease);
}

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

.page-contact .ct-channel p {
  margin: 0;
  color: var(--muted);
  font-size: .94rem;
  line-height: 1.7;
}

.page-contact .ct-channel__meta {
  margin-top: auto;
  padding-top: 10px;
  font-size: .7rem;
  letter-spacing: .14em;
  color: var(--blue);
}

/* ---------- 通用小标题 ---------- */
.page-contact .ct-head {
  max-width: 62ch;
  margin-bottom: clamp(24px, 3.5vw, 44px);
}

.page-contact .ct-head h2 {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(1.7rem, 3.4vw, 2.9rem);
  line-height: 1.04;
  letter-spacing: -.02em;
  margin: .65rem 0 .8rem;
  color: var(--text);
}

.page-contact .ct-head__lead {
  margin: 0;
  color: var(--muted);
  line-height: 1.75;
}

/* ---------- 客服通道 ---------- */
.page-contact .ct-support {
  background: linear-gradient(180deg, rgba(26, 18, 51, .55) 0%, rgba(26, 18, 51, 0) 78%);
}

.page-contact .ct-support__grid {
  display: grid;
  gap: var(--ct-gap);
}

.page-contact .ct-dials {
  border-top: 1px solid var(--line);
}

.page-contact .ct-dial {
  padding: clamp(18px, 2.4vw, 26px) 0;
  border-bottom: 1px solid var(--line);
}

.page-contact .ct-dial__k {
  display: block;
  font-size: .68rem;
  letter-spacing: .2em;
  color: var(--cyan);
}

.page-contact .ct-dial__v {
  margin: .5rem 0 0;
  font-family: var(--font-mono);
  font-size: clamp(1.05rem, 2.4vw, 1.7rem);
  line-height: 1.25;
  letter-spacing: -.01em;
  color: var(--text);
  overflow-wrap: anywhere;
}

.page-contact .ct-dial--hot .ct-dial__v {
  color: var(--amber);
}

.page-contact .ct-dial__note {
  display: block;
  margin-top: .6rem;
  max-width: 48ch;
  color: var(--muted);
  font-size: .9rem;
  line-height: 1.7;
}

.page-contact .ct-cases {
  background: var(--deck);
  border: 1px solid var(--line);
  padding: clamp(20px, 3vw, 34px);
}

.page-contact .ct-cases h3 {
  margin: 0 0 14px;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: 1.06rem;
  letter-spacing: .01em;
  color: var(--text);
}

.page-contact .ct-cases ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-contact .ct-cases li {
  position: relative;
  padding: 13px 0 13px 24px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: .93rem;
  line-height: 1.7;
}

.page-contact .ct-cases li::before {
  content: "—";
  position: absolute;
  left: 0;
  top: 13px;
  font-family: var(--font-mono);
  color: var(--blue);
}

/* ---------- 商务与入驻 ---------- */
.page-contact .ct-biz__grid {
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-contact .ct-biz__col {
  background: var(--ink);
  padding: clamp(22px, 3vw, 34px);
}

.page-contact .ct-biz__col h3 {
  margin: 0 0 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
  font-family: var(--font-head);
  font-weight: 900;
  font-size: 1.06rem;
  letter-spacing: .01em;
  color: var(--text);
}

.page-contact .ct-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-contact .ct-list li {
  padding: 11px 0 11px 18px;
  position: relative;
  color: var(--muted);
  font-size: .92rem;
  line-height: 1.7;
}

.page-contact .ct-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 19px;
  width: 8px;
  height: 1px;
  background: var(--cyan);
}

.page-contact .ct-steps {
  counter-reset: ctstep;
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-contact .ct-steps li {
  counter-increment: ctstep;
  position: relative;
  padding: 11px 0 11px 34px;
  color: var(--muted);
  font-size: .92rem;
  line-height: 1.7;
}

.page-contact .ct-steps li::before {
  content: counter(ctstep, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 11px;
  font-family: var(--font-mono);
  font-size: .78rem;
  letter-spacing: .06em;
  color: var(--blue);
}

.page-contact .ct-biz__callout {
  background: linear-gradient(160deg, rgba(59, 123, 255, .22) 0%, rgba(26, 18, 51, .95) 62%);
  box-shadow: inset 2px 0 0 var(--blue);
}

.page-contact .ct-callout__k {
  margin: 0 0 .6rem;
  font-size: .72rem;
  letter-spacing: .2em;
  color: var(--cyan);
}

.page-contact .ct-biz__callout p {
  margin: 0 0 .8rem;
  color: var(--text);
  font-size: .93rem;
  line-height: 1.7;
}

/* ---------- 媒体与内容 ---------- */
.page-contact .ct-media__grid {
  display: grid;
  gap: var(--ct-gap);
}

.page-contact .ct-media__intro h2 {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(1.7rem, 3.4vw, 2.9rem);
  line-height: 1.04;
  letter-spacing: -.02em;
  margin: .65rem 0 .8rem;
  color: var(--text);
}

.page-contact .ct-media__intro p {
  margin: 0;
  max-width: 44ch;
  color: var(--muted);
  line-height: 1.75;
}

.page-contact .ct-media__panels {
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-contact .ct-media__card {
  background: var(--deck);
  padding: clamp(20px, 2.8vw, 30px);
}

.page-contact .ct-media__no {
  display: block;
  font-size: .68rem;
  letter-spacing: .22em;
  color: var(--cyan);
}

.page-contact .ct-media__card h3 {
  margin: .7rem 0 14px;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: 1.2rem;
  letter-spacing: -.01em;
  color: var(--text);
}

.page-contact .ct-media__card ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-contact .ct-media__card li {
  padding: 10px 0;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: .9rem;
  line-height: 1.7;
}

/* ---------- 办公与来访（暖纸色信息板） ---------- */
.page-contact .ct-board {
  padding: clamp(24px, 4vw, 56px);
  background: var(--paper);
  color: var(--ct-paper-ink);
  box-shadow: var(--shadow-soft);
}

.page-contact .ct-eyebrow--ink {
  color: #5B3FA8;
}

.page-contact .ct-board__grid {
  display: grid;
  gap: clamp(24px, 3.5vw, 44px);
}

.page-contact .ct-board__copy h2 {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(1.7rem, 3vw, 2.6rem);
  line-height: 1.04;
  letter-spacing: -.02em;
  margin: .6rem 0 .9rem;
  color: var(--ct-paper-ink);
}

.page-contact .ct-board__copy > p {
  margin: 0 0 6px;
  max-width: 52ch;
  color: var(--ct-paper-muted);
  line-height: 1.75;
}

.page-contact .ct-board__kv {
  margin: clamp(20px, 2.6vw, 30px) 0 0;
  border-top: 1px solid rgba(20, 18, 42, .18);
}

.page-contact .ct-board__kv > div {
  padding: 14px 0;
  border-bottom: 1px solid rgba(20, 18, 42, .18);
}

.page-contact .ct-board__kv dt {
  font-family: var(--font-mono);
  font-size: .68rem;
  letter-spacing: .18em;
  color: #6C6688;
}

.page-contact .ct-board__kv dd {
  margin: .45rem 0 0;
  font-size: 1.02rem;
  line-height: 1.6;
  color: var(--ct-paper-ink);
}

.page-contact .ct-details {
  margin-top: clamp(20px, 2.6vw, 30px);
  border-top: 1px solid rgba(20, 18, 42, .18);
  padding-top: 14px;
}

.page-contact .ct-details summary {
  cursor: pointer;
  font-weight: 500;
  color: #2A2450;
  font-size: .95rem;
  letter-spacing: .01em;
  list-style: none;
}

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

.page-contact .ct-details summary::before {
  content: "+";
  display: inline-block;
  width: 1.2em;
  font-family: var(--font-mono);
  color: #5B3FA8;
}

.page-contact .ct-details[open] summary::before {
  content: "–";
}

.page-contact .ct-details ul {
  list-style: none;
  margin: 14px 0 0;
  padding: 0 0 0 2px;
}

.page-contact .ct-details li {
  padding: 9px 0 9px 16px;
  position: relative;
  color: var(--ct-paper-muted);
  font-size: .91rem;
  line-height: 1.7;
}

.page-contact .ct-details li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 17px;
  width: 7px;
  height: 1px;
  background: #5B3FA8;
}

.page-contact .ct-board__media {
  border: 1px solid rgba(20, 18, 42, .18);
  align-self: start;
}

.page-contact .ct-board__media .figure__cap {
  color: rgba(241, 233, 218, .85);
}

/* 备案信息：纸板内的暗色条 */
.page-contact .ct-board__filing {
  margin-top: clamp(28px, 4vw, 48px);
  padding: clamp(20px, 3vw, 34px);
  background: var(--ink);
  color: var(--text);
  scroll-margin-top: calc(var(--rail-top) + 16px);
}

.page-contact .ct-board__filing h2 {
  margin: 0 0 6px;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(1.2rem, 2vw, 1.6rem);
  letter-spacing: -.01em;
  color: var(--text);
}

.page-contact .ct-filing {
  display: grid;
  gap: 0 24px;
  margin: 12px 0 0;
}

.page-contact .ct-filing > div {
  padding: 14px 0;
  border-top: 1px solid var(--line);
}

.page-contact .ct-filing dt {
  font-size: .66rem;
  letter-spacing: .2em;
  color: var(--muted);
}

.page-contact .ct-filing dd {
  margin: .4rem 0 0;
  font-size: .95rem;
  line-height: 1.5;
  color: var(--text);
  overflow-wrap: anywhere;
}

.page-contact .ct-filing__icp {
  color: var(--cyan);
}

/* ---------- 延伸阅读 ---------- */
.page-contact .ct-links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-contact .ct-links li {
  background: var(--ink);
}

.page-contact .ct-links a {
  display: block;
  padding: clamp(18px, 2.6vw, 28px);
  color: var(--muted);
  font-size: .93rem;
  line-height: 1.7;
  text-decoration: none;
  transition: background .24s var(--ease), color .24s var(--ease);
}

.page-contact .ct-links a:hover,
.page-contact .ct-links a:focus-visible {
  background: var(--deck);
  color: var(--text);
}

.page-contact .ct-links .mono {
  display: block;
  margin-bottom: .5rem;
  font-size: .7rem;
  letter-spacing: .2em;
  color: var(--cyan);
}

/* ---------- 焦点与锚点 ---------- */
.page-contact [id="support"],
.page-contact [id="biz"],
.page-contact [id="media"],
.page-contact [id="visit"] {
  scroll-margin-top: calc(var(--rail-top) + 16px);
}

.page-contact a:focus-visible,
.page-contact summary:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: 2px;
  box-shadow: inset 0 0 0 1px var(--cyan);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-contact .ct-hero__quick {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

@media (min-width: 820px) {
  .page-contact .ct-channels {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

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

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

@media (min-width: 900px) {
  .page-contact .ct-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  }

  .page-contact .ct-support__grid {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-contact .ct-board__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
  }

  .page-contact .ct-filing {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 960px) {
  .page-contact .ct-media__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.45fr);
    align-items: start;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact * {
    transition-duration: .01ms !important;
    animation-duration: .01ms !important;
  }
}