.page-contact {
  --ct-rail-w: 336px;
  --ct-accent: var(--signal);
}

/* 面包屑 */
.page-contact .ct-crumb {
  background: var(--paper);
  padding: 16px 0 4px;
}

.page-contact .ct-crumb .crumb ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 13px;
  color: var(--muted);
}

.page-contact .ct-crumb .crumb li + li::before {
  content: "／";
  margin-right: 8px;
  color: rgba(42, 35, 32, .34);
}

.page-contact .ct-crumb .crumb a {
  color: var(--green);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

.page-contact .ct-crumb .crumb a:hover {
  border-bottom-color: var(--green);
}

/* 首屏 */
.page-contact .ct-hero {
  position: relative;
  overflow: hidden;
  background: var(--green);
  color: var(--white);
  padding: clamp(30px, 6vw, 64px) 0 clamp(42px, 7vw, 84px);
}

.page-contact .ct-hero::before {
  content: "";
  position: absolute;
  right: -120px;
  top: -140px;
  width: 420px;
  height: 420px;
  border-radius: 50%;
  background: radial-gradient(circle at 40% 40%, rgba(242, 106, 27, .30), rgba(242, 106, 27, 0) 68%);
  pointer-events: none;
}

.page-contact .ct-hero::after {
  content: "";
  position: absolute;
  left: 30%;
  right: -12%;
  bottom: -50px;
  height: 190px;
  transform: rotate(-5deg);
  background: repeating-linear-gradient(115deg, rgba(251, 252, 248, .13) 0 1px, transparent 1px 20px);
  pointer-events: none;
}

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

.page-contact .ct-hero__eyebrow {
  color: var(--signal);
  margin: 0 0 14px;
}

.page-contact .ct-hero__title {
  margin: 0;
  max-width: 20ch;
  font-size: clamp(28px, 5.4vw, 54px);
  line-height: 1.1;
  letter-spacing: -.02em;
}

.page-contact .ct-hero__lead {
  margin: 20px 0 0;
  max-width: 60ch;
  color: rgba(251, 252, 248, .88);
}

.page-contact .ct-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-contact .ct-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  max-width: 640px;
  margin: 32px 0 0;
  padding-top: 20px;
  border-top: 1px solid rgba(251, 252, 248, .22);
}

.page-contact .ct-stats dt {
  font-size: 12px;
  letter-spacing: .06em;
  color: rgba(251, 252, 248, .68);
}

.page-contact .ct-stats dd {
  margin: 6px 0 0;
  font-family: var(--font-data);
  font-size: clamp(20px, 4.4vw, 30px);
  letter-spacing: .02em;
  color: var(--white);
}

/* 主体两栏 */
.page-contact .ct-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 5vw, 52px);
  padding: clamp(26px, 5vw, 54px) 0 clamp(30px, 5vw, 58px);
}

.page-contact .ct-rail {
  display: grid;
  gap: 18px;
  align-content: start;
}

.page-contact .ct-card {
  position: relative;
  padding: clamp(18px, 3vw, 24px);
  background: var(--navy);
  color: var(--white);
  border-left: 4px solid var(--signal);
  clip-path: polygon(0 0, calc(100% - var(--cut)) 0, 100% var(--cut), 100% 100%, 0 100%);
}

.page-contact .ct-card__head {
  margin: 0 0 14px;
  font-family: var(--font-editorial);
  font-size: 18px;
  letter-spacing: .02em;
  color: var(--white);
}

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

.page-contact .ct-card__list li {
  display: grid;
  gap: 4px;
}

.page-contact .ct-card__key {
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--corner);
}

.page-contact .ct-card__val {
  font-size: 15px;
  line-height: 1.6;
  word-break: break-word;
  color: var(--white);
}

.page-contact .ct-card__note {
  margin: 16px 0 0;
  padding-top: 14px;
  border-top: 1px dashed rgba(251, 252, 248, .26);
  color: var(--corner);
}

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

.page-contact .ct-rail__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  border: 1px solid var(--line);
}

.page-contact .ct-rail__links {
  display: grid;
  gap: 10px;
}

/* 章节 */
.page-contact .ct-flow {
  min-width: 0;
}

.page-contact .ct-sec {
  padding: clamp(24px, 4vw, 38px) 0;
  border-top: 1px solid var(--line);
}

.page-contact .ct-sec--first {
  border-top: 0;
  padding-top: 0;
}

.page-contact .ct-sec .h-section {
  margin: 8px 0 0;
}

.page-contact .ct-sec .prose {
  margin: 14px 0 0;
}

/* 事项单选 */
.page-contact .ct-pick {
  margin-top: 22px;
}

.page-contact .ct-pick__input {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

.page-contact .ct-pick__tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-contact .ct-pick__tab {
  display: inline-block;
  padding: 10px 16px;
  font-size: 14px;
  line-height: 1.3;
  cursor: pointer;
  color: var(--ink);
  background: var(--white);
  border: 1px solid var(--line-strong);
  clip-path: polygon(0 0, calc(100% - 10px) 0, 100% 10px, 100% 100%, 0 100%);
  transition: background-color .2s ease, color .2s ease, border-color .2s ease;
}

.page-contact .ct-pick__tab:hover {
  border-color: var(--green);
  color: var(--green);
}

.page-contact #ct-topic-1:checked ~ .ct-pick__tabs label[for="ct-topic-1"],
.page-contact #ct-topic-2:checked ~ .ct-pick__tabs label[for="ct-topic-2"],
.page-contact #ct-topic-3:checked ~ .ct-pick__tabs label[for="ct-topic-3"],
.page-contact #ct-topic-4:checked ~ .ct-pick__tabs label[for="ct-topic-4"] {
  background: var(--green);
  border-color: var(--green);
  color: var(--white);
}

.page-contact #ct-topic-1:focus-visible ~ .ct-pick__tabs label[for="ct-topic-1"],
.page-contact #ct-topic-2:focus-visible ~ .ct-pick__tabs label[for="ct-topic-2"],
.page-contact #ct-topic-3:focus-visible ~ .ct-pick__tabs label[for="ct-topic-3"],
.page-contact #ct-topic-4:focus-visible ~ .ct-pick__tabs label[for="ct-topic-4"] {
  outline: 2px solid var(--signal);
  outline-offset: 2px;
}

.page-contact .ct-pick__panels {
  margin-top: 16px;
}

.page-contact .ct-pick__panel {
  display: none;
  padding: clamp(18px, 3vw, 28px);
  background: var(--white);
  border: 1px solid var(--line);
  border-left: 4px solid var(--signal);
  clip-path: polygon(0 0, calc(100% - var(--cut)) 0, 100% var(--cut), 100% 100%, 0 100%);
}

.page-contact #ct-topic-1:checked ~ .ct-pick__panels .ct-pick__panel:nth-child(1),
.page-contact #ct-topic-2:checked ~ .ct-pick__panels .ct-pick__panel:nth-child(2),
.page-contact #ct-topic-3:checked ~ .ct-pick__panels .ct-pick__panel:nth-child(3),
.page-contact #ct-topic-4:checked ~ .ct-pick__panels .ct-pick__panel:nth-child(4) {
  display: block;
}

.page-contact .ct-pick__panel .h-sub {
  margin: 0;
}

.page-contact .ct-pick__panel p {
  margin: 12px 0 0;
  font-size: 16px;
  line-height: 1.8;
  color: var(--ink);
}

.page-contact .ct-notes {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-contact .ct-notes li {
  position: relative;
  padding-left: 20px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--muted);
}

.page-contact .ct-notes li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .72em;
  width: 9px;
  height: 2px;
  background: var(--signal);
}

/* 三类反馈 */
.page-contact .ct-rows {
  list-style: none;
  margin: 20px 0 0;
  padding: 0;
}

.page-contact .ct-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 8px;
  padding: 18px 0 18px 14px;
  border-top: 1px dashed var(--line-strong);
  border-left: 3px solid var(--ct-accent);
}

.page-contact .ct-row--pen {
  --ct-accent: var(--pen);
}

.page-contact .ct-row--kit {
  --ct-accent: var(--kit);
}

.page-contact .ct-row--corner {
  --ct-accent: var(--corner);
}

.page-contact .ct-row__no {
  font-size: 13px;
  letter-spacing: .12em;
  color: var(--ct-accent);
}

.page-contact .ct-row__body .h-sub {
  margin: 0;
}

.page-contact .ct-row__body p {
  margin: 8px 0 0;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--ink);
}

/* 提交清单 */
.page-contact .ct-check {
  list-style: none;
  margin: 20px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-contact .ct-check li {
  display: grid;
  grid-template-columns: 18px minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  padding: 14px 16px;
  background: var(--paper-2);
  border-left: 3px solid var(--cool);
  font-size: 15.5px;
  line-height: 1.7;
  color: var(--ink);
}

.page-contact .ct-check__box {
  width: 16px;
  height: 16px;
  margin-top: 4px;
  border: 1.5px solid var(--line-strong);
  background: var(--white);
}

/* 合作流程 */
.page-contact .ct-steps {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: grid;
  gap: 18px;
}

.page-contact .ct-steps li {
  position: relative;
  padding: 18px 0 0;
  border-top: 2px solid var(--line-strong);
}

.page-contact .ct-steps li::before {
  content: "";
  position: absolute;
  top: -2px;
  left: 0;
  width: 40px;
  height: 2px;
  background: var(--signal);
}

.page-contact .ct-steps__no {
  display: block;
  font-size: 13px;
  letter-spacing: .12em;
  color: var(--signal);
}

.page-contact .ct-steps .h-sub {
  margin: 8px 0 0;
}

.page-contact .ct-steps p {
  margin: 8px 0 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink);
}

/* 机构与媒体 */
.page-contact .ct-cols {
  display: grid;
  gap: 18px;
  margin-top: 20px;
}

.page-contact .ct-col {
  padding: clamp(18px, 3vw, 26px);
  background: var(--white);
  border: 1px solid var(--line);
  clip-path: polygon(0 0, calc(100% - var(--cut)) 0, 100% var(--cut), 100% 100%, 0 100%);
}

.page-contact .ct-col .h-sub {
  margin: 0;
}

.page-contact .ct-col p {
  margin: 12px 0 18px;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--ink);
}

/* 页尾草原带 */
.page-contact .ct-horizon {
  position: relative;
  margin-top: clamp(28px, 5vw, 54px);
  background: var(--navy);
  overflow: hidden;
}

.page-contact .ct-horizon img {
  display: block;
  width: 100%;
  height: auto;
  min-height: 200px;
  max-height: 340px;
  object-fit: cover;
  opacity: .5;
}

.page-contact .ct-horizon__inner {
  position: absolute;
  inset: auto 0 0 0;
  padding: clamp(20px, 4vw, 40px) 0;
  background: linear-gradient(to top, rgba(14, 27, 51, .94) 30%, rgba(14, 27, 51, 0));
}

.page-contact .ct-horizon__title {
  margin: 0;
  color: var(--white);
}

.page-contact .ct-horizon__text {
  margin: 10px 0 0;
  max-width: 68ch;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(251, 252, 248, .82);
}

.page-contact .ct-horizon__text a {
  color: var(--signal);
  text-decoration: none;
  border-bottom: 1px solid rgba(242, 106, 27, .6);
}

.page-contact .ct-horizon__text a:hover {
  border-bottom-color: var(--signal);
}

/* 平板与桌面 */
@media (min-width: 640px) {
  .page-contact .ct-row {
    grid-template-columns: 52px minmax(0, 1fr);
    gap: 16px;
  }

  .page-contact .ct-row__no {
    padding-top: 4px;
  }
}

@media (min-width: 760px) {
  .page-contact .ct-cols {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 24px;
  }

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

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

  .page-contact .ct-rail {
    position: sticky;
    top: 84px;
  }

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

  .page-contact .ct-steps li {
    padding-right: 22px;
  }

  .page-contact .ct-steps li:last-child {
    padding-right: 0;
  }
}

@media (min-width: 1200px) {
  .page-contact {
    --ct-rail-w: 372px;
  }
}