.page-contact {
  --ct-gap: 20px;
  display: block;
  color: var(--text);
}

.page-contact .wrap {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: 20px;
}

.page-contact .crumbs {
  padding: 18px 0 0;
}

.page-contact .crumbs ol {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  font-size: 13px;
  color: var(--mute);
}

.page-contact .crumbs li + li::before {
  content: "/";
  margin-right: 8px;
  color: var(--line-strong);
}

.page-contact .crumbs a {
  color: var(--mute);
  text-decoration: none;
}

.page-contact .crumbs a:hover,
.page-contact .crumbs a:focus-visible {
  color: var(--lime);
}

.page-contact .crumbs li[aria-current] {
  color: var(--text);
}

/* ---------- 首屏 ---------- */

.page-contact .ct-hero {
  position: relative;
  padding: 26px 0 10px;
  overflow: hidden;
}

.page-contact .ct-hero::after {
  content: "";
  position: absolute;
  top: -90px;
  right: -120px;
  width: 320px;
  height: 320px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(200, 255, 57, 0.16), transparent 68%);
  pointer-events: none;
}

.page-contact .ct-hero__inner {
  position: relative;
  z-index: 1;
}

.page-contact .ct-hero__title {
  margin: 14px 0 0;
  font-family: var(--sans);
  font-weight: 900;
  font-size: clamp(42px, 11.5vw, 104px);
  line-height: 0.96;
  letter-spacing: -0.02em;
  color: var(--text);
}

.page-contact .ct-hero__title em {
  font-style: normal;
  color: var(--lime);
}

.page-contact .ct-hero__lede {
  max-width: 46ch;
  margin: 20px 0 0;
  font-size: 16px;
  line-height: 1.8;
  color: var(--mute);
}

.page-contact .ct-hero__facts {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  margin: 28px 0 0;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--r);
  overflow: hidden;
}

.page-contact .ct-hero__facts > div {
  background: var(--panel);
  padding: 13px 15px;
}

.page-contact .ct-hero__facts dt {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--mute);
}

.page-contact .ct-hero__facts dd {
  margin: 6px 0 0;
  font-family: var(--mono);
  font-size: 15px;
  font-variant-numeric: tabular-nums;
  color: var(--lime);
}

/* ---------- 章节头 ---------- */

.page-contact .ct-sec-head {
  display: grid;
  gap: 8px;
  margin: 0 0 18px;
}

.page-contact .ct-sec-head h2 {
  margin: 0;
  font-weight: 800;
  font-size: clamp(25px, 6vw, 38px);
  line-height: 1.12;
  letter-spacing: -0.015em;
  color: var(--text);
}

.page-contact .ct-sec-head__note {
  margin: 0;
  max-width: 52ch;
  font-size: 15px;
  line-height: 1.75;
  color: var(--mute);
}

/* ---------- 联系渠道 ---------- */

.page-contact .ct-channel {
  margin-top: 34px;
  padding: 40px 0;
  border-top: 1px solid var(--line);
}

.page-contact .ct-channel__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.page-contact .ct-card {
  position: relative;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--r);
  padding: 18px;
  transition: transform 0.3s var(--ease), border-color 0.3s var(--ease);
}

.page-contact .ct-card::before {
  content: "";
  position: absolute;
  left: 18px;
  top: -1px;
  width: 42px;
  height: 3px;
  background: var(--lime);
  border-radius: 0 0 3px 3px;
}

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

.page-contact .ct-card__idx {
  margin: 6px 0 0;
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--mute);
}

.page-contact .ct-card h3 {
  margin: 10px 0 0;
  font-size: 18px;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--text);
}

.page-contact .ct-card__val {
  margin: 12px 0 0;
  font-size: clamp(15px, 4.2vw, 21px);
  letter-spacing: 0.01em;
  font-variant-numeric: tabular-nums;
  color: var(--lime);
  word-break: break-all;
}

.page-contact .ct-card__txt {
  margin: 12px 0 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--mute);
}

.page-contact .ct-channel__fig {
  margin: 22px 0 0;
}

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

/* ---------- 事由分流 ---------- */

.page-contact .ct-route {
  padding: 40px 0;
  border-top: 1px solid var(--line);
}

.page-contact .ct-route__list {
  list-style: none;
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
}

.page-contact .ct-route__item {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--r);
  overflow: hidden;
  transition: border-color 0.3s var(--ease);
}

.page-contact .ct-route__item[open] {
  border-color: rgba(200, 255, 57, 0.42);
}

.page-contact .ct-route__item summary {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 12px;
  padding: 15px 16px;
  cursor: pointer;
  list-style: none;
}

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

.page-contact .ct-route__item summary:hover {
  background: rgba(18, 32, 58, 0.6);
}

.page-contact .ct-route__no {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--mute);
}

.page-contact .ct-route__name {
  flex: 1 1 auto;
  font-weight: 800;
  font-size: 17px;
  color: var(--text);
}

.page-contact .ct-route__tag {
  font-family: var(--mono);
  font-size: 12px;
  padding: 2px 9px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  color: var(--mute);
}

.page-contact .ct-route__item summary::after {
  content: "＋";
  font-family: var(--mono);
  font-size: 16px;
  line-height: 1;
  color: var(--lime);
  transition: transform 0.3s var(--ease);
}

.page-contact .ct-route__item[open] summary::after {
  transform: rotate(45deg);
}

.page-contact .ct-route__body {
  padding: 0 16px 18px;
  border-top: 1px dashed var(--line);
}

.page-contact .ct-route__body p {
  margin: 14px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--text);
}

.page-contact .ct-route__body a {
  color: var(--blue);
  text-decoration: none;
  border-bottom: 1px solid rgba(79, 168, 255, 0.4);
}

.page-contact .ct-route__body a:hover,
.page-contact .ct-route__body a:focus-visible {
  color: var(--lime);
  border-color: var(--lime);
}

.page-contact .ct-route__tips {
  list-style: none;
  display: grid;
  gap: 8px;
  margin: 14px 0 0;
  padding: 0;
}

.page-contact .ct-route__tips li {
  position: relative;
  padding-left: 18px;
  font-size: 14px;
  line-height: 1.72;
  color: var(--mute);
}

.page-contact .ct-route__tips li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.64em;
  width: 7px;
  height: 7px;
  border-radius: 2px;
  background: var(--blue);
}

/* ---------- 奶油纸色联系信息 ---------- */

.page-contact .ct-paper {
  padding: 44px 0;
  background: var(--paper);
  color: var(--paper-ink);
}

.page-contact .ct-paper__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

.page-contact .ct-paper .eyebrow {
  color: var(--red);
}

.page-contact .ct-paper h2 {
  margin: 10px 0 0;
  font-weight: 900;
  font-size: clamp(24px, 6vw, 36px);
  line-height: 1.14;
  letter-spacing: -0.015em;
  color: var(--paper-ink);
}

.page-contact .ct-paper__note {
  margin: 14px 0 0;
  max-width: 44ch;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(36, 26, 18, 0.74);
}

.page-contact .ct-paper__book {
  margin: 0;
  border-top: 1px solid rgba(36, 26, 18, 0.2);
}

.page-contact .ct-paper__book > div {
  padding: 13px 2px;
  border-bottom: 1px solid rgba(36, 26, 18, 0.2);
}

.page-contact .ct-paper__book dt {
  font-size: 12px;
  letter-spacing: 0.12em;
  color: rgba(36, 26, 18, 0.6);
}

.page-contact .ct-paper__book dd {
  margin: 6px 0 0;
  font-family: var(--mono);
  font-size: 15px;
  font-variant-numeric: tabular-nums;
  color: var(--paper-ink);
  word-break: break-all;
}

/* ---------- 合作方向 ---------- */

.page-contact .ct-coop {
  padding: 44px 0;
  border-top: 1px solid var(--line);
}

.page-contact .ct-coop__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px;
}

.page-contact .ct-coop__fig {
  margin: 0;
}

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

.page-contact .ct-coop__tabs {
  list-style: none;
  display: grid;
  gap: 14px;
  margin: 0;
  padding: 4px 10px;
}

.page-contact .ct-coop__tab {
  position: relative;
  padding: 16px 16px 16px 20px;
  border: 1px solid var(--line);
  border-radius: var(--r);
  background: linear-gradient(180deg, rgba(18, 32, 58, 0.92), rgba(14, 23, 40, 0.92));
  transform: rotate(-2.4deg);
  transition: transform 0.35s var(--ease), border-color 0.35s var(--ease), box-shadow 0.35s var(--ease);
}

.page-contact .ct-coop__tab:nth-child(2) {
  transform: rotate(1.8deg) translateX(6px);
}

.page-contact .ct-coop__tab:nth-child(3) {
  transform: rotate(-1.2deg) translateX(-4px);
}

.page-contact .ct-coop__tab::before {
  content: "";
  position: absolute;
  left: 0;
  top: 14px;
  bottom: 14px;
  width: 3px;
  border-radius: 2px;
  background: var(--orange);
}

.page-contact .ct-coop__tab:hover,
.page-contact .ct-coop__tab:focus-within {
  transform: rotate(0deg) translateY(-2px);
  border-color: rgba(255, 106, 43, 0.5);
  box-shadow: 0 12px 26px rgba(0, 0, 0, 0.36);
}

.page-contact .ct-coop__tabidx {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--orange);
}

.page-contact .ct-coop__tab h3 {
  margin: 8px 0 0;
  font-size: 18px;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--text);
}

.page-contact .ct-coop__bound {
  margin: 10px 0 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--text);
}

.page-contact .ct-coop__mat {
  margin: 10px 0 0;
  padding-top: 10px;
  border-top: 1px dashed var(--line);
  font-size: 13px;
  line-height: 1.7;
  color: var(--mute);
}

/* ---------- 提交之后 ---------- */

.page-contact .ct-loop {
  padding: 44px 0 62px;
  border-top: 1px solid var(--line);
}

.page-contact .ct-loop__steps {
  list-style: none;
  counter-reset: ctstep;
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
}

.page-contact .ct-loop__steps li {
  position: relative;
  padding: 16px 16px 16px 54px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--r);
}

.page-contact .ct-loop__steps li::before {
  counter-increment: ctstep;
  content: "S" counter(ctstep, decimal-leading-zero);
  position: absolute;
  left: 14px;
  top: 17px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--lime);
}

.page-contact .ct-loop__steps h3 {
  margin: 0;
  font-size: 16px;
  font-weight: 800;
  color: var(--text);
}

.page-contact .ct-loop__steps p {
  margin: 8px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--mute);
}

.page-contact .ct-loop__tail {
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px dashed var(--line);
}

.page-contact .ct-loop__tail p {
  max-width: 62ch;
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--mute);
}

.page-contact .ct-loop__links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
  margin-top: 16px !important;
}

.page-contact .ct-loop__links a {
  font-family: var(--mono);
  font-size: 14px;
  color: var(--blue);
  text-decoration: none;
  border-bottom: 1px solid rgba(79, 168, 255, 0.4);
  padding-bottom: 2px;
}

.page-contact .ct-loop__links a:hover,
.page-contact .ct-loop__links a:focus-visible {
  color: var(--lime);
  border-color: var(--lime);
}

/* ---------- 响应式 ---------- */

@media (min-width: 720px) {
  .page-contact .wrap {
    padding-inline: 30px;
  }

  .page-contact .ct-hero {
    padding-top: 36px;
  }

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

  .page-contact .ct-channel__grid {
    grid-template-columns: 1fr 1fr;
    gap: 18px;
  }

  .page-contact .ct-route__item summary {
    gap: 8px 16px;
  }

  .page-contact .ct-route__body {
    padding-inline: 20px;
  }

  .page-contact .ct-paper__grid {
    grid-template-columns: 0.85fr 1.15fr;
    align-items: start;
    gap: 40px;
  }

  .page-contact .ct-paper__book {
    display: grid;
    grid-template-columns: 1fr 1fr;
    column-gap: 32px;
  }

  .page-contact .ct-paper__book > div:nth-last-child(2) {
    border-bottom: 1px solid rgba(36, 26, 18, 0.2);
  }

  .page-contact .ct-coop__grid {
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: 40px;
  }

  .page-contact .ct-loop__steps {
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
  }
}

@media (min-width: 1040px) {
  .page-contact .ct-route__list {
    gap: 12px;
  }

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

  .page-contact .ct-coop__tabs {
    padding-inline: 0 14px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .ct-card:hover,
  .page-contact .ct-coop__tab:hover,
  .page-contact .ct-coop__tab:focus-within {
    transform: none;
  }

  .page-contact .ct-coop__tab,
  .page-contact .ct-coop__tab:nth-child(2),
  .page-contact .ct-coop__tab:nth-child(3) {
    transform: none;
    transition: border-color 0.2s linear;
  }

  .page-contact .ct-route__item summary::after {
    transition: none;
  }
}