.page-contact,
.page-contact *,
.page-contact *::before,
.page-contact *::after {
  box-sizing: border-box;
}

.page-contact {
  --ct-gap: 20px;
  padding-bottom: 72px;
}

/* ---------- 首屏：待填的提交单头 ---------- */
.page-contact .ct-lead {
  padding-top: 26px;
}

.page-contact .ct-lead-grid {
  display: grid;
  gap: 26px;
  margin-top: 20px;
}

.page-contact .ct-lead-main {
  display: grid;
  gap: 14px;
  align-content: start;
  border-left: 6px solid var(--ochre);
  padding-left: 16px;
}

.page-contact h1 {
  margin: 0;
  font-family: var(--font-head);
  font-size: clamp(36px, 8.5vw, 72px);
  line-height: 1.02;
  letter-spacing: -0.02em;
  font-weight: 700;
  color: var(--ink);
}

.page-contact .ct-lead-text {
  margin: 0;
  max-width: 44ch;
  font-size: clamp(16px, 2.4vw, 19px);
  line-height: 1.75;
  color: var(--ink);
}

.page-contact .ct-lead-links {
  margin: 0;
}

.page-contact .ct-stamp {
  display: grid;
  gap: 12px;
  align-content: start;
  padding: 18px 18px 16px;
  border: 1px solid var(--line);
  background: var(--cream);
  box-shadow: var(--shadow-1);
  transform: rotate(-0.6deg);
  transition: box-shadow var(--ease);
}

.page-contact .ct-stamp:hover {
  box-shadow: var(--shadow-2);
}

.page-contact .ct-stamp-title {
  margin: 0;
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--night);
}

.page-contact .ct-stamp-list {
  margin: 0;
  display: grid;
  gap: 8px;
}

.page-contact .ct-stamp-row {
  display: grid;
  grid-template-columns: 74px minmax(0, 1fr);
  gap: 10px;
  padding-bottom: 8px;
  border-bottom: 1px dashed var(--line-soft);
}

.page-contact .ct-stamp-row:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.page-contact .ct-stamp-row dt {
  font-size: 13px;
  line-height: 1.6;
  color: var(--note);
}

.page-contact .ct-stamp-row dd {
  margin: 0;
  font-size: 14px;
  line-height: 1.6;
  color: var(--ink);
}

/* ---------- 章节通用头 ---------- */
.page-contact .ct-sec {
  margin-top: 52px;
}

.page-contact .ct-sec-head {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 4px 14px;
  align-items: start;
  margin-bottom: 20px;
  padding-top: 14px;
  border-top: 2px solid var(--ink);
}

.page-contact .ct-num {
  font-size: 24px;
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--ochre);
}

.page-contact .ct-num::after {
  content: "";
  display: block;
  width: 26px;
  height: 3px;
  margin-top: 7px;
  background: var(--ochre);
}

.page-contact h2 {
  margin: 0;
  font-family: var(--font-head);
  font-size: clamp(24px, 4.6vw, 34px);
  line-height: 1.12;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-contact .ct-sec-note {
  margin: 6px 0 0;
  max-width: 48ch;
  font-size: 14px;
  line-height: 1.7;
  color: var(--note);
}

/* ---------- 01 联系渠道 ---------- */
.page-contact .ct-channels {
  display: grid;
  gap: var(--ct-gap);
}

.page-contact .ct-channel-list {
  display: grid;
  gap: 14px;
  align-content: start;
}

.page-contact .ct-channel {
  display: grid;
  gap: 8px;
  padding: 15px 16px 16px 18px;
  border: 1px solid var(--line);
  border-left: 5px solid var(--night);
  background: var(--paper);
  box-shadow: var(--shadow-1);
  transition: box-shadow var(--ease), border-color var(--ease);
}

.page-contact .ct-channel:hover {
  box-shadow: var(--shadow-2);
  border-left-color: var(--whistle);
}

.page-contact .ct-channel-key {
  margin: 0;
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--note);
}

.page-contact .ct-channel-val {
  margin: 0;
  font-size: clamp(15px, 4vw, 20px);
  line-height: 1.45;
  letter-spacing: .01em;
  color: var(--ink);
  overflow-wrap: anywhere;
}

.page-contact .ct-channel-val--addr {
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.75;
}

.page-contact .ct-channel-foot {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 14px;
}

.page-contact .ct-channel-foot .small-note {
  flex: 1 1 200px;
  min-width: 0;
}

/* ---------- 图片 ---------- */
.page-contact .ct-figure {
  margin: 0;
  display: grid;
  gap: 8px;
  align-content: start;
}

.page-contact .ct-figure img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--line);
  box-shadow: var(--shadow-1);
  object-fit: cover;
  background: var(--cream);
}

/* ---------- 02 提交清单 ---------- */
.page-contact .ct-check-grid {
  display: grid;
  gap: var(--ct-gap);
}

.page-contact .ct-checklist {
  display: grid;
  gap: 2px;
  align-content: start;
  padding: 16px;
  border: 1px solid var(--line);
  background: var(--cream);
  box-shadow: var(--shadow-1);
}

.page-contact .ct-checklist-legend {
  margin: 0 0 8px;
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--night);
}

.page-contact .ct-check {
  display: grid;
  grid-template-columns: 22px minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  padding: 11px 10px;
  border-bottom: 1px dashed var(--line-soft);
  cursor: pointer;
  transition: background var(--ease);
}

.page-contact .ct-check:hover {
  background: var(--paper);
}

.page-contact .ct-check:last-of-type {
  border-bottom: 0;
}

.page-contact .ct-check input {
  appearance: none;
  -webkit-appearance: none;
  width: 22px;
  height: 22px;
  margin: 0;
  border: 1.5px solid var(--line);
  background: var(--paper);
  display: grid;
  place-content: center;
  cursor: pointer;
  transition: background var(--ease), border-color var(--ease);
}

.page-contact .ct-check input::after {
  content: "";
  width: 11px;
  height: 6px;
  border-left: 2px solid var(--paper);
  border-bottom: 2px solid var(--paper);
  transform: rotate(-45deg) translate(1px, -2px) scale(0);
  transition: transform var(--ease);
}

.page-contact .ct-check input:checked {
  background: var(--pitch);
  border-color: var(--pitch);
}

.page-contact .ct-check input:checked::after {
  transform: rotate(-45deg) translate(1px, -2px) scale(1);
}

.page-contact .ct-check input:focus-visible {
  outline: 2px solid var(--whistle);
  outline-offset: 2px;
}

.page-contact .ct-check-text {
  display: block;
  font-size: 15px;
  line-height: 1.7;
  color: var(--ink);
  transition: color var(--ease);
}

.page-contact .ct-check-text b {
  display: block;
  margin-bottom: 2px;
  font-size: 14px;
  font-weight: 700;
  color: var(--ink);
}

.page-contact .ct-check input:checked ~ .ct-check-text {
  color: var(--note);
}

.page-contact .ct-check input:checked ~ .ct-check-text b {
  color: var(--note);
}

.page-contact .ct-aside {
  margin: 18px 0 0;
  padding: 14px 16px;
  border: 1px dashed var(--line);
  background: var(--paper);
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink);
}

.page-contact .ct-aside-label {
  display: inline-block;
  margin-right: 8px;
  padding: 1px 7px;
  background: var(--ochre);
  color: var(--paper);
  font-size: 12px;
  letter-spacing: .06em;
}

/* ---------- 03 处理流程 ---------- */
.page-contact .ct-flow {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 16px;
}

.page-contact .ct-step {
  position: relative;
  padding: 16px 18px 16px 22px;
  border: 1px solid var(--line);
  border-left: 4px solid var(--whistle);
  background: var(--paper);
  box-shadow: var(--shadow-1);
  transition: box-shadow var(--ease), background var(--ease);
}

.page-contact .ct-step:hover {
  box-shadow: var(--shadow-2);
  background: var(--cream);
}

.page-contact .ct-step-dot {
  position: absolute;
  top: 18px;
  left: -9px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--whistle);
  box-shadow: 0 0 0 3px var(--paper);
}

.page-contact .ct-step h3 {
  margin: 0 0 8px;
  font-family: var(--font-head);
  font-size: 19px;
  line-height: 1.25;
  letter-spacing: -0.01em;
  color: var(--ink);
}

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

.page-contact .ct-step-out {
  margin-top: 12px !important;
  padding-top: 10px;
  border-top: 1px dashed var(--line-soft);
  font-size: 13px !important;
  letter-spacing: .02em;
  color: var(--note) !important;
  transition: color var(--ease), border-color var(--ease);
}

.page-contact .ct-step:hover .ct-step-out {
  color: var(--ink) !important;
  border-top-color: var(--whistle);
}

.page-contact .ct-flow-note {
  display: block;
  margin-top: 16px;
}

/* ---------- 04 转载与合作 ---------- */
.page-contact .ct-reuse {
  display: grid;
  gap: 18px;
}

.page-contact .ct-note-card {
  display: grid;
  gap: 10px;
  align-content: start;
  padding: 18px;
  border: 1px solid var(--line);
  background: var(--paper);
  box-shadow: var(--shadow-1);
  transition: box-shadow var(--ease);
}

.page-contact .ct-note-card:hover {
  box-shadow: var(--shadow-2);
}

.page-contact .ct-note-card:nth-child(2) {
  background: var(--cream);
}

.page-contact .ct-note-card h3 {
  margin: 0;
  font-family: var(--font-head);
  font-size: 20px;
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--ink);
}

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

.page-contact .ct-note-card-foot {
  margin-top: 2px;
}

/* ---------- 05 服务边界 ---------- */
.page-contact .ct-boundary {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-contact .ct-boundary li {
  position: relative;
  padding: 14px 0;
  border-bottom: 1px solid var(--line-soft);
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink);
}

.page-contact .ct-boundary li::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -1px;
  width: 52px;
  height: 1px;
  background: var(--correct);
}

.page-contact .ct-boundary b {
  display: inline-block;
  margin-right: 8px;
  padding: 1px 8px;
  border: 1px solid var(--correct);
  color: var(--correct);
  font-size: 13px;
  font-weight: 600;
  vertical-align: 1px;
}

/* ---------- 收束 ---------- */
.page-contact .ct-signoff {
  display: grid;
  gap: 10px;
  margin-top: 50px;
  padding-top: 18px;
  border-top: 3px solid var(--ochre);
}

.page-contact .ct-signoff-line {
  margin: 0;
  font-size: clamp(17px, 3vw, 21px);
  line-height: 1.65;
  color: var(--ink);
}

.page-contact .ct-signoff-line .eyebrow {
  display: block;
  margin-bottom: 6px;
  color: var(--ochre);
}

.page-contact .ct-signoff-note {
  display: block;
}

/* ---------- 响应式 ---------- */
@media (min-width: 760px) {
  .page-contact .ct-sec-head {
    grid-template-columns: 64px minmax(0, 1fr);
    gap: 4px 18px;
  }

  .page-contact .ct-num {
    font-size: 30px;
  }

  .page-contact .ct-boundary {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 32px;
    border-top: 0;
  }

  .page-contact .ct-boundary li {
    border-top: 1px solid var(--line-soft);
  }

  .page-contact .ct-boundary li::after {
    top: -1px;
    bottom: auto;
  }
}

@media (min-width: 860px) {
  .page-contact .ct-flow {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
    align-items: stretch;
  }

  .page-contact .ct-step {
    padding: 24px 18px 18px;
    border-left: 1px solid var(--line);
    border-top: 4px solid var(--whistle);
  }

  .page-contact .ct-step-dot {
    top: -9px;
    left: 18px;
  }

  .page-contact .ct-reuse {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 22px;
  }
}

@media (min-width: 900px) {
  .page-contact .ct-lead-grid {
    grid-template-columns: minmax(0, 1fr) 300px;
    gap: 44px;
    align-items: start;
  }

  .page-contact .ct-channels {
    grid-template-columns: minmax(0, 1fr) minmax(0, 340px);
    gap: 32px;
    align-items: start;
  }

  .page-contact .ct-check-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 380px);
    gap: 32px;
    align-items: start;
  }
}

@media (min-width: 1100px) {
  .page-contact .ct-sec {
    margin-top: 64px;
  }

  .page-contact .ct-defs,
  .page-contact .ct-lead-text {
    max-width: 46ch;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact *,
  .page-contact *::before,
  .page-contact *::after {
    transition: none !important;
    animation: none !important;
  }

  .page-contact .ct-stamp {
    transform: none;
  }
}