.page-contact {
  display: block;
  color: var(--k5-ink);
  padding-bottom: clamp(56px, 8vw, 96px);
}

.page-contact section + section {
  margin-top: clamp(52px, 8vw, 104px);
}

/* ---------- 首屏 ---------- */
.page-contact .ct-hero {
  padding-top: clamp(16px, 3vw, 32px);
}

.page-contact .ct-hero__plate {
  position: relative;
  overflow: hidden;
  margin-top: clamp(14px, 2.5vw, 24px);
  padding: clamp(26px, 5vw, 54px) clamp(20px, 4vw, 52px) clamp(24px, 4vw, 44px);
  background:
    linear-gradient(150deg, rgba(33, 230, 210, 0.12) 0%, rgba(11, 44, 58, 0.46) 38%, rgba(17, 21, 30, 0.94) 100%);
  border: 1px solid var(--k5-edge);
  border-left: 2px solid var(--k5-cyan);
  border-radius: 2px;
}

.page-contact .ct-hero__ticks {
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 9px;
  background-image: repeating-linear-gradient(90deg, var(--k5-cyan) 0 1px, transparent 1px 26px);
  opacity: 0.35;
  pointer-events: none;
}

.page-contact .ct-hero .k5-label {
  margin: 8px 0 0;
}

.page-contact .ct-hero h1.k5-title {
  margin: clamp(12px, 2vw, 20px) 0 0;
  max-width: 20ch;
  font-size: clamp(30px, 6.2vw, 64px);
  line-height: 1.05;
  font-weight: 800;
  letter-spacing: 0.01em;
}

.page-contact .ct-hero__lede {
  margin: clamp(16px, 2.4vw, 24px) 0 0;
  max-width: 64ch;
  font-size: clamp(15px, 1.55vw, 17.5px);
  line-height: 1.78;
  color: rgba(232, 237, 245, 0.86);
}

.page-contact .ct-hero__facts {
  list-style: none;
  margin: clamp(22px, 4vw, 34px) 0 0;
  padding: 18px 0 0;
  border-top: 1px solid var(--k5-edge);
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px 32px;
}

.page-contact .ct-hero__facts li {
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.page-contact .ct-hero__factnum {
  font-family: var(--k5-mono);
  font-weight: 700;
  font-size: 16px;
  letter-spacing: 0.01em;
  color: var(--k5-cyan);
}

.page-contact .ct-hero__factcap {
  font-size: 12.5px;
  color: var(--k5-mute);
}

.page-contact .ct-hero__media {
  position: relative;
  margin: clamp(26px, 4vw, 44px) 0 0;
  border-top: 1px solid var(--k5-edge);
  border-bottom: 1px solid var(--k5-edge);
  background: var(--k5-fog);
  overflow: hidden;
}

.page-contact .ct-hero__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1400 / 700;
  object-fit: cover;
}

.page-contact .ct-hero__media::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(180deg, rgba(7, 9, 14, 0.62) 0%, rgba(7, 9, 14, 0) 32%, rgba(7, 9, 14, 0.72) 100%);
}

@media (min-width: 720px) {
  .page-contact .ct-hero__facts {
    grid-template-columns: repeat(3, auto);
    justify-content: start;
  }
}

/* ---------- 区块标题 ---------- */
.page-contact .ct-sechead {
  max-width: 68ch;
  margin-bottom: clamp(22px, 3.4vw, 38px);
}

.page-contact .ct-sechead .k5-label {
  margin: 0;
}

.page-contact .ct-sechead__title {
  margin: 10px 0 0;
  font-size: clamp(22px, 3.2vw, 38px);
  line-height: 1.18;
  font-weight: 800;
  letter-spacing: 0.01em;
}

.page-contact .ct-sechead__lede {
  margin: 12px 0 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--k5-mute);
}

/* ---------- 三条通道 ---------- */
.page-contact .ct-channels__row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.page-contact .ct-channel {
  display: flex;
  flex-direction: column;
  padding: 26px 22px 24px;
  background: var(--k5-panel);
  border: 1px solid var(--k5-edge);
  border-top: 3px solid var(--k5-edge);
  border-radius: 2px;
  transition: background 260ms var(--k5-ease), transform 260ms var(--k5-ease), border-color 260ms var(--k5-ease);
}

.page-contact .ct-channel--cyan { border-top-color: var(--k5-cyan); }
.page-contact .ct-channel--hot { border-top-color: var(--k5-magenta); }
.page-contact .ct-channel--away { border-top-color: var(--k5-away); }

.page-contact .ct-channel:hover,
.page-contact .ct-channel:focus-within {
  background: #151b26;
  transform: translateY(-3px);
}

.page-contact .ct-channel__no {
  margin: 0;
  font-family: var(--k5-mono);
  font-size: 11.5px;
  letter-spacing: 0.16em;
  color: var(--k5-mute);
}

.page-contact .ct-channel__name {
  margin: 12px 0 0;
  font-size: 20px;
  font-weight: 800;
  line-height: 1.3;
}

.page-contact .ct-channel__who {
  margin: 8px 0 0;
  font-family: var(--k5-mono);
  font-size: 11.5px;
  letter-spacing: 0.04em;
  line-height: 1.6;
  color: var(--k5-mute);
}

.page-contact .ct-channel__desc {
  margin: 14px 0 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: rgba(232, 237, 245, 0.82);
}

.page-contact .ct-channel__list {
  list-style: none;
  margin: 18px 0 0;
  padding: 16px 0 0;
  border-top: 1px solid var(--k5-edge);
  display: grid;
  gap: 8px;
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--k5-mute);
}

.page-contact .ct-channel__list li {
  position: relative;
  padding-left: 18px;
}

.page-contact .ct-channel__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 10px;
  height: 1px;
  background: currentColor;
  opacity: 0.7;
}

@media (min-width: 780px) {
  .page-contact .ct-channels__row {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
  }
}

/* ---------- 合作方向 ---------- */
.page-contact .ct-dir__list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--k5-edge);
}

.page-contact .ct-dir {
  display: grid;
  gap: 10px;
  padding: clamp(20px, 3vw, 28px) 0;
  border-bottom: 1px solid var(--k5-edge);
}

.page-contact .ct-dir__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px 12px;
}

.page-contact .ct-dir__no {
  font-family: var(--k5-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--k5-cyan);
}

.page-contact .ct-dir__name {
  margin: 0;
  font-size: 18px;
  font-weight: 800;
  line-height: 1.3;
}

.page-contact .ct-dir__desc {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: rgba(232, 237, 245, 0.84);
}

.page-contact .ct-dir__desc a {
  color: var(--k5-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(33, 230, 210, 0.4);
  transition: border-color 200ms var(--k5-ease);
}

.page-contact .ct-dir__desc a:hover {
  border-bottom-color: var(--k5-cyan);
}

@media (min-width: 860px) {
  .page-contact .ct-dir {
    grid-template-columns: minmax(0, 340px) minmax(0, 1fr);
    gap: 20px 44px;
    align-items: start;
  }
}

/* ---------- 联系方式与更正通道 ---------- */
.page-contact .ct-reach__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 3vw, 32px);
}

.page-contact .ct-reach__card {
  padding: clamp(20px, 3vw, 30px);
  background: var(--k5-panel);
  border: 1px solid var(--k5-edge);
  border-radius: 2px;
}

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

.page-contact .ct-row {
  position: relative;
  display: grid;
  gap: 4px;
  padding: 16px 0 16px 18px;
  border-bottom: 1px solid var(--k5-edge);
}

.page-contact .ct-row:first-child { padding-top: 4px; }
.page-contact .ct-row:last-child { padding-bottom: 4px; border-bottom: 0; }

.page-contact .ct-row::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 9px;
  height: 1px;
  transform: translateY(-50%);
  background: var(--k5-cyan);
  opacity: 0.75;
}

.page-contact .ct-row:first-child::before { top: calc(50% - 6px); }

.page-contact .ct-row__key {
  font-family: var(--k5-mono);
  font-size: 11.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--k5-mute);
}

.page-contact .ct-row__val {
  font-family: var(--k5-mono);
  font-size: 15px;
  font-weight: 600;
  color: var(--k5-ink);
  overflow-wrap: anywhere;
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 200ms var(--k5-ease), border-color 200ms var(--k5-ease);
}

a.ct-row__val:hover {
  color: var(--k5-cyan);
  border-bottom-color: var(--k5-cyan);
}

.page-contact .ct-reach__note {
  margin: 18px 0 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--k5-mute);
}

.page-contact .ct-errata {
  padding: clamp(20px, 3vw, 30px);
  background: linear-gradient(165deg, rgba(76, 141, 255, 0.1) 0%, rgba(17, 21, 30, 0.94) 58%);
  border: 1px solid var(--k5-edge);
  border-left: 2px solid var(--k5-away);
  border-radius: 2px;
}

.page-contact .ct-errata .k5-label {
  margin: 0;
}

.page-contact .ct-errata__title {
  margin: 12px 0 0;
  font-size: clamp(18px, 2.2vw, 23px);
  font-weight: 800;
  line-height: 1.35;
}

.page-contact .ct-errata__steps {
  list-style: none;
  counter-reset: cter;
  margin: 18px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-contact .ct-errata__steps li {
  counter-increment: cter;
  position: relative;
  padding-left: 34px;
  font-size: 14.5px;
  line-height: 1.7;
  color: rgba(232, 237, 245, 0.86);
}

.page-contact .ct-errata__steps li::before {
  content: counter(cter, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 0.16em;
  font-family: var(--k5-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--k5-away);
}

.page-contact .ct-errata__note {
  margin: 18px 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--k5-edge);
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--k5-mute);
}

.page-contact .ct-errata__note a {
  color: var(--k5-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(33, 230, 210, 0.35);
}

.page-contact .ct-errata__note a:hover {
  border-bottom-color: var(--k5-cyan);
}

.page-contact .ct-errata__figure {
  max-width: 420px;
  margin: 20px 0 0;
  border: 1px solid var(--k5-edge);
  border-radius: 2px;
  background: var(--k5-fog);
  overflow: hidden;
}

.page-contact .ct-errata__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: cover;
}

@media (min-width: 620px) {
  .page-contact .ct-row {
    grid-template-columns: 108px minmax(0, 1fr);
    align-items: baseline;
    gap: 4px 16px;
  }
}

@media (min-width: 940px) {
  .page-contact .ct-reach__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 40px;
    align-items: start;
  }
}

/* ---------- 协作流程 ---------- */
.page-contact .ct-flow__steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.page-contact .ct-step {
  position: relative;
  padding: 22px 20px 20px;
  background: var(--k5-panel);
  border: 1px solid var(--k5-edge);
  border-radius: 2px;
  overflow: hidden;
}

.page-contact .ct-step::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--k5-cyan), rgba(33, 230, 210, 0));
  opacity: 0.6;
}

.page-contact .ct-step__no {
  display: block;
  font-family: var(--k5-mono);
  font-size: clamp(26px, 4vw, 36px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0.02em;
  color: rgba(33, 230, 210, 0.3);
}

.page-contact .ct-step__name {
  margin: 14px 0 0;
  font-size: 17px;
  font-weight: 800;
  line-height: 1.35;
}

.page-contact .ct-step__desc {
  margin: 8px 0 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--k5-mute);
}

@media (min-width: 700px) {
  .page-contact .ct-flow__steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px 22px;
  }
}

@media (min-width: 1120px) {
  .page-contact .ct-flow__steps {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

/* ---------- 运营地区与备案 ---------- */
.page-contact .ct-record__list {
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--k5-edge);
}

.page-contact .ct-record__row {
  display: grid;
  gap: 5px;
  padding: 15px 0;
  border-bottom: 1px solid var(--k5-edge);
}

.page-contact .ct-record__key {
  font-family: var(--k5-mono);
  font-size: 11.5px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--k5-mute);
}

.page-contact .ct-record__val {
  margin: 0;
  font-family: var(--k5-mono);
  font-size: 14.5px;
  font-weight: 600;
  letter-spacing: 0.01em;
  color: rgba(232, 237, 245, 0.92);
  overflow-wrap: anywhere;
}

.page-contact .ct-record__note {
  margin: 16px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--k5-mute);
}

.page-contact .ct-record__links {
  margin-top: 26px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 14px;
}

.page-contact .ct-record__links a {
  display: inline-flex;
  align-items: center;
  padding: 8px 14px;
  font-size: 13px;
  color: var(--k5-ink);
  text-decoration: none;
  background: rgba(17, 21, 30, 0.85);
  border: 1px solid var(--k5-edge);
  border-radius: 2px;
  transition: color 220ms var(--k5-ease), border-color 220ms var(--k5-ease), background 220ms var(--k5-ease);
}

.page-contact .ct-record__links a:hover {
  color: var(--k5-cyan);
  border-color: rgba(33, 230, 210, 0.55);
  background: rgba(33, 230, 210, 0.08);
}

@media (min-width: 720px) {
  .page-contact .ct-record__row {
    grid-template-columns: 160px minmax(0, 1fr);
    gap: 6px 28px;
    align-items: baseline;
  }
}

/* ---------- 动效退让 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-contact .ct-channel,
  .page-contact .ct-row__val,
  .page-contact .ct-record__links a,
  .page-contact .ct-dir__desc a {
    transition: none;
  }

  .page-contact .ct-channel:hover,
  .page-contact .ct-channel:focus-within {
    transform: none;
  }
}