.page-contact {
  --ctc-hair: rgba(242, 237, 228, 0.13);
  --ctc-hair-strong: rgba(242, 237, 228, 0.3);
  --ctc-gap: clamp(46px, 7vw, 96px);
  background-color: var(--ink);
  color: var(--text);
  overflow-x: hidden;
}

.page-contact::before {
  content: "";
  display: block;
  height: 2px;
  background: linear-gradient(90deg, var(--amber) 0%, rgba(255, 122, 47, 0.2) 48%, rgba(255, 122, 47, 0) 82%);
}

.page-contact .ctc-sec {
  padding: var(--ctc-gap) 0;
}

.page-contact .ctc-sec--tight {
  padding: clamp(26px, 4vw, 46px) 0 0;
}

.page-contact .ctc-sec--edge {
  background-color: var(--ink-2);
  border-top: 1px solid var(--ctc-hair);
  border-bottom: 1px solid var(--ctc-hair);
}

.page-contact h2 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.5rem, 3.8vw, 2.5rem);
  line-height: 1.16;
  letter-spacing: 0.005em;
  color: var(--text);
}

.page-contact h3 {
  margin: 0;
  font-family: var(--font-ui);
  font-weight: 600;
  font-size: clamp(1rem, 1.9vw, 1.12rem);
  line-height: 1.45;
  color: var(--text);
}

.page-contact p {
  margin: 0;
}

.page-contact .ctc-copy {
  max-width: 64ch;
  font-family: var(--font-body);
  font-size: clamp(0.95rem, 1.4vw, 1.05rem);
  line-height: 1.85;
  color: var(--text-dim);
}

.page-contact .ctc-sec__head {
  margin-bottom: clamp(24px, 4vw, 42px);
}

.page-contact .ctc-sec__head h2 {
  margin-top: 10px;
}

.page-contact .ctc-sec__head .ctc-copy {
  margin-top: 14px;
}

.page-contact a:focus-visible {
  outline: 2px solid var(--neon);
  outline-offset: 3px;
  box-shadow: 4px 4px 0 0 var(--amber);
}

/* ---------- 首屏 ---------- */

.page-contact .ctc-hero {
  max-width: 76ch;
}

.page-contact .ctc-hero h1 {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2.05rem, 6.4vw, 4.3rem);
  line-height: 1.02;
  letter-spacing: -0.01em;
  color: var(--text);
}

.page-contact .ctc-hero__lede {
  margin-top: 20px;
}

.page-contact .ctc-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 26px;
  margin: clamp(24px, 3.5vw, 34px) 0 0;
  padding: 16px 0 0;
  list-style: none;
  border-top: 1px solid var(--ctc-hair);
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.08em;
  color: var(--text-mute);
}

.page-contact .ctc-meta li {
  position: relative;
  padding-left: 14px;
}

.page-contact .ctc-meta li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.52em;
  width: 5px;
  height: 5px;
  background: var(--neon);
  transform: rotate(45deg);
}

/* ---------- 通栏封面 ---------- */

.page-contact .ctc-cover {
  position: relative;
  margin: clamp(24px, 4vw, 42px) 0 0;
  border: 1px solid var(--ctc-hair);
  background-color: var(--ink-2);
  overflow: hidden;
}

.page-contact .ctc-cover img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.page-contact .ctc-cover::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image: repeating-linear-gradient(
    to bottom,
    rgba(242, 237, 228, 0.05) 0 1px,
    rgba(242, 237, 228, 0) 1px 4px
  );
}

.page-contact .ctc-cover figcaption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 30px clamp(14px, 2vw, 22px) 14px;
  font-family: var(--font-ui);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  color: var(--text-dim);
  background: linear-gradient(to top, rgba(11, 13, 16, 0.94), rgba(11, 13, 16, 0));
}

/* ---------- 对接台 ---------- */

.page-contact .ctc-channels {
  display: grid;
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .ctc-channel {
  position: relative;
  display: block;
  padding: clamp(18px, 2.6vw, 28px);
  border: 1px solid var(--ctc-hair);
  background-color: var(--ink-2);
  transition: border-color 180ms var(--ease), background-color 180ms var(--ease), transform 180ms var(--ease);
}

.page-contact .ctc-channel::after {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 0;
  height: 1px;
  background-color: var(--neon);
  transition: width 260ms var(--ease);
}

.page-contact .ctc-channel:hover,
.page-contact .ctc-channel:focus-within {
  border-color: var(--neon);
  background-color: var(--ink-3);
  transform: translateY(-2px);
}

.page-contact .ctc-channel:hover::after,
.page-contact .ctc-channel:focus-within::after {
  width: 100%;
}

.page-contact .ctc-channel[data-cat="neon"] {
  --ctc-dot: var(--neon);
}

.page-contact .ctc-channel[data-cat="amber"] {
  --ctc-dot: var(--amber);
}

.page-contact .ctc-channel[data-cat="violet"] {
  --ctc-dot: var(--violet);
}

.page-contact .ctc-channel__label {
  display: flex;
  align-items: center;
  gap: 9px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  color: var(--text-mute);
}

.page-contact .ctc-channel__label::before {
  content: "";
  flex: none;
  width: 8px;
  height: 8px;
  background-color: var(--ctc-dot, var(--neon));
  transform: rotate(45deg);
}

.page-contact .ctc-channel__value {
  margin-top: 14px;
  font-family: var(--font-mono);
  font-size: clamp(1rem, 2.4vw, 1.22rem);
  letter-spacing: 0.02em;
  color: var(--neon);
  overflow-wrap: anywhere;
}

.page-contact .ctc-channel__desc {
  margin-top: 12px;
  max-width: 62ch;
  font-family: var(--font-body);
  font-size: 0.95rem;
  line-height: 1.8;
  color: var(--text-dim);
}

.page-contact .ctc-channel__when {
  margin-top: 10px;
  padding-top: 10px;
  border-top: 1px solid var(--ctc-hair);
  font-family: var(--font-mono);
  font-size: 0.74rem;
  line-height: 1.7;
  letter-spacing: 0.03em;
  color: var(--text-mute);
}

.page-contact .ctc-channel__link {
  display: inline-block;
  margin-top: 16px;
  padding-bottom: 2px;
  border-bottom: 1px solid rgba(34, 225, 214, 0.36);
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.08em;
  color: var(--neon);
  text-decoration: none;
  transition: border-color 160ms var(--ease);
}

.page-contact .ctc-channel__link:hover {
  border-bottom-color: var(--neon);
}

/* ---------- 右侧竖排栏 ---------- */

.page-contact .ctc-side {
  margin-top: clamp(28px, 4vw, 44px);
  padding-top: 20px;
  border-top: 1px solid var(--ctc-hair);
}

.page-contact .ctc-side__rail {
  display: flex;
  gap: 18px;
  height: min(340px, 52vh);
  min-height: 180px;
}

.page-contact .ctc-side__label {
  writing-mode: vertical-rl;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.3em;
  color: var(--text-mute);
}

.page-contact .ctc-side__addr {
  writing-mode: vertical-rl;
  font-family: var(--font-ui);
  font-weight: 300;
  font-size: 0.94rem;
  letter-spacing: 0.18em;
  line-height: 1.85;
  color: var(--text-dim);
}

.page-contact .ctc-side__note {
  margin-top: 22px;
  max-width: 34ch;
  padding-top: 14px;
  border-top: 1px solid var(--ctc-hair);
  font-family: var(--font-ui);
  font-size: 0.8rem;
  line-height: 1.75;
  color: var(--text-mute);
}

/* ---------- 纠错四项 ---------- */

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

.page-contact .ctc-step {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: clamp(14px, 2vw, 22px);
  padding: clamp(18px, 2.4vw, 24px) 0;
  border-top: 1px solid var(--ctc-hair);
}

.page-contact .ctc-step:last-child {
  border-bottom: 1px solid var(--ctc-hair);
}

.page-contact .ctc-step__num {
  position: relative;
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  color: var(--ctc-hair-strong);
  transition: color 200ms var(--ease);
}

.page-contact .ctc-step__num svg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  color: currentColor;
}

.page-contact .ctc-step:hover .ctc-step__num,
.page-contact .ctc-step:focus-within .ctc-step__num {
  color: var(--neon);
}

.page-contact .ctc-step__num > span {
  position: relative;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.04em;
  color: var(--text);
}

.page-contact .ctc-step__title {
  margin-bottom: 8px;
}

.page-contact .ctc-step .ctc-copy {
  font-size: 0.94rem;
}

.page-contact .ctc-figure {
  margin: clamp(26px, 4vw, 0px) 0 0;
  border: 1px solid var(--ctc-hair);
  background-color: var(--ink-2);
  overflow: hidden;
}

.page-contact .ctc-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 25 / 16;
  object-fit: cover;
}

.page-contact .ctc-figure figcaption {
  padding: 12px 16px;
  border-top: 1px solid var(--ctc-hair);
  font-family: var(--font-ui);
  font-size: 0.78rem;
  color: var(--text-mute);
}

/* ---------- 合作材料 ---------- */

.page-contact .ctc-brief {
  margin: 0;
  border-left: 2px solid var(--moss);
  padding-left: clamp(14px, 2vw, 22px);
}

.page-contact .ctc-brief__row {
  padding: 14px 0;
  border-bottom: 1px solid var(--ctc-hair);
}

.page-contact .ctc-brief__row:first-child {
  padding-top: 0;
}

.page-contact .ctc-brief__row:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-contact .ctc-brief dt {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.14em;
  color: var(--moss);
}

.page-contact .ctc-brief dd {
  margin: 8px 0 0;
  font-family: var(--font-body);
  font-size: 0.94rem;
  line-height: 1.8;
  color: var(--text-dim);
}

/* ---------- 受理之后 ---------- */

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

.page-contact .ctc-sla-list > li {
  padding: clamp(16px, 2.2vw, 22px) 0;
  border-top: 1px solid var(--ctc-hair);
}

.page-contact .ctc-sla-list > li:last-child {
  border-bottom: 1px solid var(--ctc-hair);
}

.page-contact .ctc-sla__k {
  display: block;
  margin-bottom: 8px;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.18em;
  color: var(--neon);
}

.page-contact .ctc-sla-list .ctc-copy {
  font-size: 0.94rem;
}

.page-contact .ctc-record {
  margin-top: clamp(26px, 4vw, 0px);
  padding-left: clamp(14px, 2vw, 20px);
  border-left: 2px solid var(--amber);
}

.page-contact .ctc-record__k {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  color: var(--text-mute);
}

.page-contact .ctc-record__v {
  margin: 6px 0 18px;
  font-family: var(--font-ui);
  font-size: 1rem;
  letter-spacing: 0.03em;
  color: var(--text);
}

.page-contact .ctc-record__v--mono {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  letter-spacing: 0.05em;
  color: var(--neon);
  overflow-wrap: anywhere;
}

.page-contact .ctc-record__v:last-of-type {
  margin-bottom: 18px;
}

.page-contact .ctc-record__note {
  padding-top: 14px;
  border-top: 1px solid var(--ctc-hair);
  font-family: var(--font-ui);
  font-size: 0.8rem;
  line-height: 1.75;
  color: var(--text-mute);
}

/* ---------- 延伸入口 ---------- */

.page-contact .ctc-more-list {
  margin: clamp(22px, 3vw, 34px) 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .ctc-more-list li + li {
  border-top: 1px solid var(--ctc-hair);
}

.page-contact .ctc-more-link {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 20px;
  padding: 16px 0;
  color: var(--text);
  text-decoration: none;
  transition: color 160ms var(--ease);
}

.page-contact .ctc-more-link::after {
  content: "→";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--text-mute);
  transition: color 160ms var(--ease), transform 160ms var(--ease);
}

.page-contact .ctc-more-link:hover {
  color: var(--neon);
}

.page-contact .ctc-more-link:hover::after {
  color: var(--neon);
  transform: translateX(3px);
}

.page-contact .ctc-more-link__k {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.05rem, 2.4vw, 1.35rem);
  letter-spacing: 0.01em;
}

.page-contact .ctc-more-link__d {
  flex: 1 1 62%;
  font-family: var(--font-ui);
  font-size: 0.82rem;
  line-height: 1.7;
  color: var(--text-mute);
  transition: color 160ms var(--ease);
}

.page-contact .ctc-more-link:hover .ctc-more-link__d {
  color: var(--text-dim);
}

/* ---------- 断点 ---------- */

@media (min-width: 720px) {
  .page-contact .ctc-cover img {
    aspect-ratio: 5 / 2;
  }

  .page-contact .ctc-figure {
    margin-top: 0;
  }

  .page-contact .ctc-record {
    margin-top: 0;
  }

  .page-contact .ctc-side {
    margin-top: 0;
    padding-top: 0;
    padding-left: clamp(16px, 2vw, 28px);
    border-top: 0;
    border-left: 1px solid var(--ctc-hair);
  }
}

@media (min-width: 1024px) {
  .page-contact .ctc-side__rail {
    height: min(420px, 56vh);
  }
}