.page-contact {
  --ct-gap: clamp(18px, 2.6vw, 34px);
  --ct-gap-lg: clamp(32px, 5vw, 64px);
  position: relative;
  color: var(--text);
  font-family: var(--font-body);
  background:
    radial-gradient(120% 70% at 88% 0%, rgba(76, 141, 255, 0.10), transparent 62%),
    radial-gradient(90% 60% at 4% 34%, rgba(40, 214, 196, 0.07), transparent 60%),
    linear-gradient(168deg, var(--ink-900) 0%, var(--ink-950) 52%, var(--ink-800) 100%);
  padding-bottom: clamp(48px, 7vw, 92px);
}

.page-contact a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(40, 214, 196, 0.35);
  transition: border-color 0.2s ease, color 0.2s ease;
}

.page-contact a:hover,
.page-contact a:focus-visible {
  color: var(--mist);
  border-bottom-color: var(--clay);
}

.page-contact .breadcrumbs {
  padding-top: clamp(14px, 2vw, 22px);
}

/* ---------- 首屏 ---------- */
.page-contact .ct-hero {
  position: relative;
  padding: clamp(20px, 3.4vw, 40px) 0 clamp(34px, 5vw, 60px);
  overflow: hidden;
}

.page-contact .ct-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image: linear-gradient(90deg, var(--line-soft) 1px, transparent 1px);
  background-size: 88px 100%;
  -webkit-mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.8), transparent 86%);
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.8), transparent 86%);
}

.page-contact .ct-hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--ct-gap-lg);
  align-items: start;
}

.page-contact .ct-hero h1 {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2rem, 6.4vw, 4rem);
  line-height: 1.06;
  letter-spacing: -0.02em;
  color: var(--mist);
  text-wrap: balance;
}

.page-contact .ct-lede {
  margin: 18px 0 0;
  max-width: 58ch;
  font-size: 1rem;
  line-height: 1.85;
  color: var(--text-soft);
}

.page-contact .ct-hero-meta {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  margin-top: clamp(22px, 3.4vw, 34px);
  border: 1px solid var(--line);
  background: var(--line);
}

.page-contact .ct-hero-meta > div {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 12px 10px 14px;
  background: var(--ink-900);
}

.page-contact .ct-meta-k {
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-mute);
  line-height: 1.4;
}

.page-contact .ct-meta-v {
  font-size: 0.86rem;
  line-height: 1.4;
  color: var(--mist);
}

.page-contact .ct-meta-v.stat-num {
  font-family: var(--font-mono);
  font-size: 1.06rem;
  color: var(--cyan);
  letter-spacing: 0.01em;
}

/* ---------- 工单状态面板 ---------- */
.page-contact .ct-ticket {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line-strong);
  background: var(--ink-800);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--cut)), calc(100% - var(--cut)) 100%, 0 100%);
}

.page-contact .ct-ticket-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.3;
  filter: saturate(0.75) contrast(1.15);
}

.page-contact .ct-ticket-inner {
  position: relative;
  z-index: 1;
  padding: clamp(16px, 2.6vw, 26px);
  background: linear-gradient(158deg, rgba(11, 27, 43, 0.42), rgba(6, 13, 20, 0.9));
}

.page-contact .ct-ticket-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.page-contact .ct-ticket-note {
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  color: var(--text-mute);
}

.page-contact .ct-status {
  position: relative;
  margin-top: 16px;
}

.page-contact .ct-radio {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.page-contact .ct-track {
  position: relative;
  height: 2px;
  background: var(--line);
  overflow: hidden;
}

.page-contact .ct-track i {
  position: absolute;
  inset: 0 auto 0 0;
  width: 25%;
  background: linear-gradient(90deg, var(--cyan), var(--glow));
  transition: width 0.55s cubic-bezier(0.22, 0.7, 0.3, 1);
}

.page-contact .ct-tabs {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 4px;
  margin-top: 10px;
}

.page-contact .ct-tab {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 9px 6px 10px;
  border: 1px solid var(--line);
  border-bottom: 2px solid transparent;
  font-size: 0.72rem;
  line-height: 1.35;
  color: var(--text-mute);
  cursor: pointer;
  transition: color 0.2s ease, background 0.2s ease, border-color 0.2s ease;
}

.page-contact .ct-tab-idx {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.08em;
  color: var(--stone);
}

.page-contact .ct-tab:hover {
  color: var(--mist);
  background: rgba(40, 214, 196, 0.05);
}

.page-contact .ct-panes {
  margin-top: 16px;
  min-height: 128px;
}

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

.page-contact .ct-pane-title {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.06rem;
  letter-spacing: 0.01em;
  color: var(--mist);
}

.page-contact .ct-pane p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.8;
  color: var(--text-soft);
}

.page-contact #ct-s1:checked ~ .ct-track i { width: 25%; }
.page-contact #ct-s2:checked ~ .ct-track i { width: 50%; }
.page-contact #ct-s3:checked ~ .ct-track i { width: 75%; }
.page-contact #ct-s4:checked ~ .ct-track i { width: 100%; }

.page-contact #ct-s1:checked ~ .ct-panes > .ct-pane:nth-child(1),
.page-contact #ct-s2:checked ~ .ct-panes > .ct-pane:nth-child(2),
.page-contact #ct-s3:checked ~ .ct-panes > .ct-pane:nth-child(3),
.page-contact #ct-s4:checked ~ .ct-panes > .ct-pane:nth-child(4) {
  display: block;
}

.page-contact #ct-s1:checked ~ .ct-tabs .ct-tab:nth-child(1),
.page-contact #ct-s2:checked ~ .ct-tabs .ct-tab:nth-child(2),
.page-contact #ct-s3:checked ~ .ct-tabs .ct-tab:nth-child(3),
.page-contact #ct-s4:checked ~ .ct-tabs .ct-tab:nth-child(4) {
  color: var(--mist);
  background: rgba(40, 214, 196, 0.09);
  border-color: rgba(40, 214, 196, 0.3);
  border-bottom-color: var(--cyan);
}

.page-contact #ct-s1:checked ~ .ct-tabs .ct-tab:nth-child(1) .ct-tab-idx,
.page-contact #ct-s2:checked ~ .ct-tabs .ct-tab:nth-child(2) .ct-tab-idx,
.page-contact #ct-s3:checked ~ .ct-tabs .ct-tab:nth-child(3) .ct-tab-idx,
.page-contact #ct-s4:checked ~ .ct-tabs .ct-tab:nth-child(4) .ct-tab-idx {
  color: var(--cyan);
}

/* ---------- 通用章节 ---------- */
.page-contact .ct-section {
  position: relative;
  padding-top: clamp(36px, 5.4vw, 68px);
}

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

.page-contact .ct-section-head h2,
.page-contact .ct-prep h2,
.page-contact .ct-reach h2,
.page-contact .ct-coop h2 {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.35rem, 3.2vw, 2.05rem);
  line-height: 1.16;
  letter-spacing: -0.01em;
  color: var(--mist);
}

.page-contact .ct-section-lede,
.page-contact .ct-prep-lede,
.page-contact .ct-reach-lede {
  margin: 12px 0 0;
  font-size: 0.95rem;
  line-height: 1.85;
  color: var(--text-soft);
}

/* ---------- 问题分类 ---------- */
.page-contact .ct-cats {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  margin-top: clamp(20px, 3vw, 30px);
  border: 1px solid var(--line);
  background: var(--line);
}

.page-contact .ct-cat {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 9px;
  padding: 18px 16px 20px;
  background: var(--ink-900);
  transition: background 0.25s ease;
}

.page-contact .ct-cat:hover {
  background: var(--ink-800);
}

.page-contact .ct-cat-idx {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  color: var(--moss);
}

.page-contact .ct-cat h3 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.06rem;
  color: var(--mist);
}

.page-contact .ct-cat p {
  margin: 0;
  font-size: 0.88rem;
  line-height: 1.78;
  color: var(--text-soft);
}

.page-contact .ct-cat .tag {
  align-self: flex-start;
  margin-top: auto;
  font-size: 0.68rem;
  line-height: 1.5;
  color: var(--text-mute);
}

/* ---------- 提交前准备 ---------- */
.page-contact .ct-prep-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--ct-gap-lg);
  align-items: start;
}

.page-contact .ct-check {
  display: grid;
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
  border: 1px solid var(--line);
  background: var(--line);
}

.page-contact .ct-check li {
  background: var(--ink-900);
}

.page-contact .ct-check label {
  display: flex;
  gap: 12px;
  padding: 15px 16px;
  cursor: pointer;
  transition: background 0.2s ease;
}

.page-contact .ct-check label:hover {
  background: var(--ink-800);
}

.page-contact .ct-check input {
  flex: none;
  width: 16px;
  height: 16px;
  margin-top: 4px;
  accent-color: var(--cyan);
  cursor: pointer;
}

.page-contact .ct-check-body {
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.page-contact .ct-check-body strong {
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--mist);
}

.page-contact .ct-check-body em {
  font-style: normal;
  font-size: 0.84rem;
  line-height: 1.7;
  color: var(--text-soft);
}

.page-contact .ct-check input:checked + .ct-check-body strong {
  color: var(--cyan);
}

/* ---------- 渠道与响应 ---------- */
.page-contact .ct-channel-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--ct-gap);
  margin-top: clamp(20px, 3vw, 30px);
}

.page-contact .ct-channel-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 20px 18px 22px;
  border: 1px solid var(--line);
  background: linear-gradient(160deg, var(--ink-800), var(--ink-900));
}

.page-contact .ct-channel-card--plain {
  border-left: 3px solid var(--clay);
  background: transparent;
}

.page-contact .ct-channel-card h3 {
  margin: 4px 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.08rem;
  color: var(--mist);
}

.page-contact .ct-channel-card p {
  margin: 0;
  font-size: 0.88rem;
  line-height: 1.8;
  color: var(--text-soft);
}

.page-contact .ct-channel-list {
  margin: 6px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 1px;
  background: var(--line-soft);
  border-top: 1px solid var(--line);
}

.page-contact .ct-channel-list li {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 4px 14px;
  padding: 9px 0 0;
  background: transparent;
  font-size: 0.82rem;
}

.page-contact .ct-k {
  color: var(--text-mute);
  letter-spacing: 0.06em;
}

.page-contact .ct-v {
  color: var(--mist);
  text-align: right;
}

.page-contact .ct-v--mono {
  font-family: var(--font-mono);
  letter-spacing: -0.01em;
  word-break: break-all;
}

/* ---------- 联系信息 ---------- */
.page-contact .ct-reach-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--ct-gap-lg);
  align-items: start;
}

.page-contact .ct-addr {
  margin: clamp(20px, 3vw, 28px) 0 0;
  display: grid;
  gap: 1px;
  border: 1px solid var(--line);
  background: var(--line);
}

.page-contact .ct-addr > div {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 14px 16px;
  background: var(--ink-900);
}

.page-contact .ct-addr dt {
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-mute);
}

.page-contact .ct-addr dd {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.7;
  color: var(--mist);
}

.page-contact .ct-reach-figure {
  position: relative;
  margin: 0;
  border: 1px solid var(--line-strong);
  background: var(--ink-800);
  overflow: hidden;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--cut)), calc(100% - var(--cut)) 100%, 0 100%);
}

.page-contact .ct-reach-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(0.8) contrast(1.05);
}

.page-contact .ct-reach-figure figcaption {
  padding: 13px 16px 15px;
  border-top: 1px solid var(--line);
  font-size: 0.78rem;
  line-height: 1.7;
  color: var(--text-soft);
}

/* ---------- 合作与内容建议 ---------- */
.page-contact .ct-coop {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--ct-gap-lg);
  align-items: start;
}

.page-contact .ct-coop-main p {
  margin: 12px 0 0;
  max-width: 62ch;
  font-size: 0.93rem;
  line-height: 1.85;
  color: var(--text-soft);
}

.page-contact .ct-coop-notes {
  display: grid;
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
  border: 1px solid var(--line);
  background: var(--line);
}

.page-contact .ct-coop-notes li {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 14px 16px;
  background: var(--ink-900);
  font-size: 0.86rem;
  line-height: 1.7;
  color: var(--text-soft);
}

.page-contact .ct-coop-k {
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--moss);
}

/* ---------- 收尾链接 ---------- */
.page-contact .ct-tail {
  display: grid;
  gap: 14px;
  padding-top: 22px;
  border-top: 1px solid var(--line);
}

.page-contact .ct-tail-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: 0.01em;
  color: var(--mist);
}

.page-contact .ct-tail-links {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  border: 1px solid var(--line);
  background: var(--line);
}

.page-contact .ct-tail-links a {
  padding: 13px 16px;
  background: var(--ink-900);
  font-size: 0.86rem;
  line-height: 1.5;
  border-bottom: 1px solid transparent;
  transition: background 0.2s ease, color 0.2s ease;
}

.page-contact .ct-tail-links a:hover,
.page-contact .ct-tail-links a:focus-visible {
  background: var(--ink-800);
  color: var(--mist);
}

/* ---------- 平板 ---------- */
@media (min-width: 620px) {
  .page-contact .ct-cats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .page-contact .ct-channel-card--plain {
    grid-column: 1 / -1;
  }

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

  .page-contact .ct-tab {
    flex-direction: row;
    align-items: baseline;
    gap: 7px;
    padding: 10px 8px;
    font-size: 0.78rem;
  }
}

/* ---------- 桌面 ---------- */
@media (min-width: 940px) {
  .page-contact .ct-hero-grid {
    grid-template-columns: minmax(0, 1.02fr) minmax(0, 0.98fr);
    gap: clamp(28px, 4vw, 56px);
  }

  .page-contact .ct-prep-grid {
    grid-template-columns: minmax(0, 0.86fr) minmax(0, 1.14fr);
  }

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

  .page-contact .ct-coop {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 0.65fr);
  }

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

@media (min-width: 1060px) {
  .page-contact .ct-cats {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }

  .page-contact .ct-cat:nth-child(1),
  .page-contact .ct-cat:nth-child(2) {
    grid-column: span 3;
  }

  .page-contact .ct-cat:nth-child(3),
  .page-contact .ct-cat:nth-child(4),
  .page-contact .ct-cat:nth-child(5) {
    grid-column: span 2;
  }

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

  .page-contact .ct-channel-card--plain {
    grid-column: auto;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .ct-track i,
  .page-contact .ct-tab,
  .page-contact .ct-cat,
  .page-contact .ct-check label,
  .page-contact .ct-tail-links a {
    transition: none;
  }
}