.page-contact {
  padding-bottom: clamp(48px, 8vw, 96px);
}

/* ---------- 页头 ---------- */
.page-contact .ct-head {
  padding-top: clamp(20px, 4vw, 40px);
}

.page-contact .ct-head .breadcrumbs {
  margin-bottom: 20px;
}

.page-contact .ct-title {
  margin: 14px 0 0;
  max-width: 20ch;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(2rem, 7.4vw, 3.5rem);
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--paper);
}

.page-contact .ct-lede {
  margin: 16px 0 0;
  max-width: 62ch;
  font-size: 15.5px;
  line-height: 1.75;
  color: var(--body-text);
}

/* ---------- 主体栅格 ---------- */
.page-contact .ct-layout {
  margin-top: clamp(28px, 5vw, 48px);
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
}

.page-contact .ct-main {
  min-width: 0;
}

@media (min-width: 1000px) {
  .page-contact .ct-layout {
    grid-template-columns: minmax(250px, 320px) minmax(0, 1fr);
    gap: clamp(32px, 5vw, 64px);
    align-items: start;
  }

  .page-contact .ct-rail {
    position: sticky;
    top: 96px;
  }
}

/* ---------- 左侧联系栏 ---------- */
.page-contact .ct-rail {
  background: var(--rock);
  border: 2px solid var(--line);
  border-top: 6px solid var(--turf);
  box-shadow: var(--shadow-soft);
  padding: 22px 20px 24px;
}

.page-contact .ct-rail__title {
  margin: 0 0 6px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 1.35rem;
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-contact .ct-rail__note {
  margin: 0 0 18px;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--note);
}

.page-contact .ct-field {
  padding: 12px 0;
  border-top: 1px solid var(--line);
}

.page-contact .ct-field__k {
  display: block;
  margin-bottom: 5px;
  font-size: 11.5px;
  letter-spacing: 0.14em;
  color: var(--note);
}

.page-contact .ct-field__v {
  display: block;
  font-family: var(--font-num);
  font-variant-numeric: tabular-nums;
  font-size: 15px;
  line-height: 1.55;
  color: var(--warm);
  overflow-wrap: anywhere;
}

.page-contact .ct-field__v--turf {
  color: var(--turf);
}

.page-contact .ct-rail__hint {
  margin: 18px 0 0;
  padding-left: 12px;
  border-left: 2px solid var(--turf);
  font-size: 12.5px;
  line-height: 1.65;
  color: var(--note);
}

/* ---------- 图片 ---------- */
.page-contact .ct-figure {
  margin: 0 0 clamp(28px, 4vw, 40px);
}

.page-contact .ct-banner {
  margin: 26px 0 0;
}

.page-contact .ct-figure img,
.page-contact .ct-banner img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  background: var(--rock);
  border: 2px solid var(--line);
  box-shadow: var(--shadow-hard);
}

.page-contact .ct-figure__cap {
  margin: 14px 0 0;
  padding-left: 12px;
  border-left: 2px solid var(--amber);
  font-size: 12.5px;
  line-height: 1.65;
  color: var(--note);
}

/* ---------- 通用区块 ---------- */
.page-contact .ct-block {
  margin-top: clamp(40px, 6vw, 72px);
}

.page-contact .ct-block__title {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(1.5rem, 4.2vw, 2.1rem);
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--paper);
}

.page-contact .ct-block__lede {
  margin: 14px 0 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.75;
  color: var(--body-text);
}

.page-contact .ct-block__lede a,
.page-contact .ct-coop__desc a,
.page-contact .ct-qa__a a {
  color: var(--turf);
  text-decoration: none;
  border-bottom: 1px solid currentColor;
}

.page-contact .ct-block__lede a:hover,
.page-contact .ct-coop__desc a:hover,
.page-contact .ct-qa__a a:hover {
  color: var(--amber);
}

/* ---------- 合作卡片 ---------- */
.page-contact .ct-coop-grid {
  margin-top: 26px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.page-contact .ct-coop {
  padding: 20px 18px 18px;
  background: var(--rock);
  border: 2px solid var(--line);
  transition: transform 0.28s var(--ease), border-color 0.28s var(--ease), box-shadow 0.28s var(--ease);
}

.page-contact .ct-coop:hover,
.page-contact .ct-coop:focus-within {
  transform: translateY(-4px);
  border-color: var(--turf);
  box-shadow: var(--shadow-soft);
}

.page-contact .ct-coop__no {
  display: inline-block;
  margin-bottom: 12px;
  padding: 2px 8px;
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--ink);
  background: var(--turf);
}

.page-contact .ct-coop:nth-child(2) .ct-coop__no {
  background: var(--amber);
}

.page-contact .ct-coop:nth-child(3) .ct-coop__no {
  background: var(--violet);
  color: var(--paper);
}

.page-contact .ct-coop:nth-child(4) .ct-coop__no {
  background: var(--clay);
  color: var(--paper);
}

.page-contact .ct-coop__title {
  margin: 0 0 10px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 1.3rem;
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-contact .ct-coop__desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--body-text);
}

.page-contact .ct-coop__q {
  margin: 16px 0 5px;
  padding-top: 14px;
  border-top: 1px dashed var(--line);
  font-size: 13px;
  font-weight: 700;
  color: var(--turf);
}

.page-contact .ct-coop__a {
  margin: 0;
  font-size: 13px;
  line-height: 1.65;
  color: var(--note);
}

@media (min-width: 720px) {
  .page-contact .ct-coop-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-contact .ct-coop:nth-child(even) {
    margin-top: 28px;
  }
}

/* ---------- 数据反馈 ---------- */
.page-contact .ct-feedback {
  margin-top: clamp(40px, 6vw, 72px);
  padding: 24px 20px 26px;
  background:
    linear-gradient(135deg, rgba(182, 255, 60, 0.1), rgba(182, 255, 60, 0) 58%),
    var(--rock);
  border: 2px solid var(--line);
  border-left: 6px solid var(--turf);
  box-shadow: var(--shadow-soft);
}

.page-contact .ct-feedback__list {
  list-style: none;
  counter-reset: fbc;
  margin: 20px 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-contact .ct-feedback__list li {
  counter-increment: fbc;
  position: relative;
  padding-left: 38px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--body-text);
}

.page-contact .ct-feedback__list li::before {
  content: counter(fbc, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 2px;
  padding: 1px 5px;
  font-family: var(--font-num);
  font-size: 12px;
  color: var(--turf);
  border: 1px solid var(--line);
}

.page-contact .ct-code {
  display: inline-block;
  margin-top: 6px;
  padding: 3px 7px;
  max-width: 100%;
  font-family: var(--font-num);
  font-size: 12.5px;
  color: var(--amber);
  background: rgba(255, 162, 58, 0.1);
  border: 1px solid rgba(255, 162, 58, 0.35);
  overflow-wrap: anywhere;
}

.page-contact .ct-feedback__foot {
  margin: 20px 0 0;
  padding-left: 12px;
  border-left: 2px solid var(--amber);
  font-size: 13px;
  line-height: 1.7;
  color: var(--note);
}

/* ---------- 流程带 ---------- */
.page-contact .ct-track {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
}

.page-contact .ct-step {
  position: relative;
  padding-top: 16px;
  border-top: 2px solid var(--line);
}

.page-contact .ct-step--now {
  border-top-color: var(--turf);
}

.page-contact .ct-step__no {
  display: block;
  margin-bottom: 10px;
  font-family: var(--font-num);
  font-variant-numeric: tabular-nums;
  font-size: 22px;
  line-height: 1;
  color: var(--note);
}

.page-contact .ct-step--now .ct-step__no {
  color: var(--turf);
}

.page-contact .ct-step__title {
  margin: 0 0 8px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 1.05rem;
  line-height: 1.25;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-contact .ct-step__text {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--body-text);
}

@media (min-width: 760px) {
  .page-contact .ct-track {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 26px;
  }

  .page-contact .ct-step:not(:last-child)::after {
    content: "";
    position: absolute;
    top: -2px;
    left: 100%;
    width: 26px;
    height: 0;
    border-top: 2px dashed var(--line);
  }
}

/* ---------- 问答折叠 ---------- */
.page-contact .ct-qa-list {
  margin-top: 22px;
  border-top: 2px solid var(--line);
}

.page-contact .ct-qa {
  background: var(--rock);
  border: 2px solid var(--line);
  border-top: 0;
}

.page-contact .ct-qa__q {
  position: relative;
  cursor: pointer;
  list-style: none;
  padding: 16px 46px 16px 18px;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--paper);
  transition: color 0.24s var(--ease);
}

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

.page-contact .ct-qa__q::after {
  content: "+";
  position: absolute;
  right: 18px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-num);
  font-size: 18px;
  line-height: 1;
  color: var(--turf);
}

.page-contact .ct-qa[open] .ct-qa__q::after {
  content: "−";
}

.page-contact .ct-qa__q:hover,
.page-contact .ct-qa[open] .ct-qa__q {
  color: var(--turf);
}

.page-contact .ct-qa__q:focus-visible {
  outline: 2px solid var(--turf);
  outline-offset: -4px;
}

.page-contact .ct-qa__a {
  margin: 0;
  padding: 0 18px 18px;
  max-width: 62ch;
  font-size: 14px;
  line-height: 1.75;
  color: var(--body-text);
}

/* ---------- 动效降级 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-contact .ct-coop {
    transition: none;
  }

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