.page-contact {
  --ct-gap: clamp(20px, 3.5vw, 48px);
  --ct-glow: rgba(201, 255, 51, 0.14);
  display: block;
  box-sizing: border-box;
  width: 100%;
  max-width: var(--shell);
  margin: 0 auto;
  padding: clamp(24px, 5vw, 56px) var(--gutter) clamp(72px, 10vw, 132px);
  overflow-x: hidden;
}

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

.page-contact .breadcrumb {
  margin: 0 0 clamp(16px, 3vw, 28px);
}

/* ---------- 首屏 ---------- */
.page-contact .ct-hero {
  display: grid;
  gap: clamp(20px, 3vw, 34px);
  border-bottom: 1px solid var(--line);
  padding-bottom: clamp(26px, 4.5vw, 52px);
}

.page-contact .ct-hero h1 {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(31px, 7vw, 60px);
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--ink);
}

.page-contact .ct-lede {
  margin: 18px 0 0;
  max-width: 54ch;
  font-size: 16px;
  line-height: 1.75;
  color: var(--grey);
}

.page-contact .ct-hero-meta {
  display: grid;
  gap: 10px;
  margin-top: 24px;
}

.page-contact .ct-meta-item {
  display: block;
  padding-left: 13px;
  border-left: 2px solid var(--accent);
  font-size: 13px;
  line-height: 1.65;
  color: var(--grey);
}

.page-contact .ct-meta-item b {
  margin-right: 8px;
  font-family: var(--font-mono);
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--accent);
}

.page-contact .ct-hero-art {
  position: relative;
  margin: 0;
  border: 1px solid var(--line);
  background: var(--panel);
  overflow: hidden;
}

.page-contact .ct-hero-art img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 7 / 4;
  object-fit: cover;
}

.page-contact .ct-hero-art::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 0;
  width: 42%;
  height: 5px;
  background: var(--accent);
}

/* ---------- 分栏 ---------- */
.page-contact .ct-split {
  display: grid;
  gap: clamp(30px, 5vw, 60px);
  margin-top: clamp(34px, 5.5vw, 80px);
}

.page-contact .ct-h2 {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 12px;
  margin: 0 0 clamp(14px, 2vw, 20px);
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(21px, 3vw, 30px);
  line-height: 1.16;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-contact .ct-num {
  padding: 3px 8px;
  border: 1px solid var(--glass-line);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  line-height: 1.3;
  letter-spacing: 0.16em;
  color: var(--accent);
}

.page-contact .ct-sub {
  margin: 0 0 clamp(18px, 2.4vw, 26px);
  max-width: 58ch;
  font-size: 15px;
  line-height: 1.75;
  color: var(--grey);
}

/* ---------- 联系信息卡 ---------- */
.page-contact .ct-card {
  border: 1px solid var(--line);
  background: var(--panel);
  padding: clamp(18px, 2.6vw, 26px);
}

.page-contact .ct-rows {
  display: grid;
  gap: 0;
  margin: 0;
}

.page-contact .ct-row {
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}

.page-contact .ct-row:first-child {
  padding-top: 0;
}

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

.page-contact .ct-row-key {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--grey);
}

.page-contact .ct-row-val {
  margin: 8px 0 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--ink);
  overflow-wrap: anywhere;
}

.page-contact .ct-row-val--mail,
.page-contact .ct-row-val--mono {
  font-family: var(--font-mono);
  font-size: 15px;
  letter-spacing: 0.01em;
  color: var(--accent);
}

.page-contact .ct-row-note {
  display: block;
  margin-top: 8px;
  font-family: var(--font-body);
  font-size: 13px;
  line-height: 1.68;
  letter-spacing: 0;
  color: var(--grey);
}

/* ---------- 回复节奏 ---------- */
.page-contact .ct-beat {
  margin-top: clamp(24px, 3.4vw, 36px);
}

.page-contact .ct-h3 {
  margin: 0 0 16px;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--ink);
}

.page-contact .ct-tl {
  display: grid;
  gap: 18px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .ct-tl-item {
  padding-left: 16px;
  border-left: 1px solid var(--line);
}

.page-contact .ct-tl-item--key {
  border-left: 2px solid var(--accent);
}

.page-contact .ct-tl-time {
  display: block;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--accent);
}

.page-contact .ct-tl-text {
  margin: 5px 0 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--grey);
}

/* ---------- 反馈整理框 ---------- */
.page-contact .ct-form {
  display: grid;
  gap: clamp(16px, 2.2vw, 22px);
  padding: clamp(18px, 2.8vw, 30px);
  border: 1px solid var(--line);
  background: var(--layer);
}

.page-contact .ct-field {
  display: grid;
  gap: 8px;
}

.page-contact .ct-label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--grey);
}

.page-contact .ct-req {
  margin-left: 7px;
  letter-spacing: 0.04em;
  color: var(--warn);
}

.page-contact .ct-input {
  width: 100%;
  min-height: 46px;
  padding: 11px 14px;
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.6;
  color: var(--ink);
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 0;
  outline: none;
  transition: border-color 160ms var(--ease), box-shadow 160ms var(--ease);
}

.page-contact .ct-input::placeholder {
  color: #6b7873;
}

.page-contact .ct-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--ct-glow);
}

.page-contact .ct-textarea {
  min-height: 140px;
  resize: vertical;
}

.page-contact .ct-send {
  margin: 0;
  padding: 14px 16px;
  border-left: 2px solid var(--accent);
  background: var(--glass);
  font-size: 14px;
  line-height: 1.72;
  color: var(--grey);
}

.page-contact .ct-send b {
  font-family: var(--font-mono);
  font-weight: 600;
  color: var(--accent);
  overflow-wrap: anywhere;
}

/* ---------- 反馈分类 ---------- */
.page-contact .ct-cats {
  margin-top: clamp(46px, 6.5vw, 96px);
}

.page-contact .ct-anchors {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: clamp(22px, 3vw, 34px);
}

.page-contact .ct-anchors a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 18px;
  border: 1px solid var(--glass-line);
  background: var(--glass);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--ink);
  text-decoration: none;
  transition: border-color 160ms var(--ease), color 160ms var(--ease);
}

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

.page-contact .ct-cats-body {
  display: grid;
  gap: clamp(24px, 3.5vw, 44px);
}

.page-contact .ct-cats-list {
  display: grid;
  gap: 0;
}

.page-contact .ct-cat {
  scroll-margin-top: 110px;
  padding: clamp(18px, 2.4vw, 26px) 0;
  border-top: 1px solid var(--line);
  display: grid;
  gap: 10px;
}

.page-contact .ct-cat:first-child {
  border-top: 2px solid var(--accent);
}

.page-contact .ct-cat-head {
  display: flex;
  align-items: baseline;
  gap: 12px;
}

.page-contact .ct-cat-num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--accent);
}

.page-contact .ct-cat-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(18px, 2.2vw, 22px);
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-contact .ct-cat p {
  margin: 0;
  max-width: 62ch;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--grey);
}

.page-contact .ct-cat .ct-cat-need {
  padding-left: 13px;
  border-left: 1px solid var(--line);
  font-size: 13px;
  line-height: 1.7;
  color: var(--ink);
}

.page-contact .ct-cat-need b {
  font-weight: 600;
  color: var(--accent);
}

.page-contact .ct-cats-art {
  margin: 0;
  border: 1px solid var(--line);
  background: var(--panel);
  overflow: hidden;
}

.page-contact .ct-cats-art img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 12 / 7;
  object-fit: cover;
}

/* ---------- 合作 ---------- */
.page-contact .ct-coop {
  margin-top: clamp(46px, 6.5vw, 96px);
}

.page-contact .ct-coop-grid {
  display: grid;
  gap: 1px;
  border: 1px solid var(--line);
  background: var(--line);
}

.page-contact .ct-coop-item {
  display: grid;
  align-content: start;
  gap: 10px;
  padding: clamp(20px, 2.6vw, 30px);
  background: var(--panel);
}

.page-contact .ct-coop-item .tag {
  justify-self: start;
}

.page-contact .ct-coop-item h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-contact .ct-coop-item p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--grey);
}

.page-contact .ct-inline-link {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid var(--glass-line);
}

.page-contact .ct-inline-link:hover,
.page-contact .ct-inline-link:focus-visible {
  border-bottom-color: var(--accent);
}

/* ---------- 常见问题引导 ---------- */
.page-contact .ct-faq {
  margin-top: clamp(46px, 6.5vw, 96px);
}

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

.page-contact .ct-faq-list a {
  display: grid;
  gap: 7px;
  min-height: 44px;
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-left: 2px solid var(--line);
  background: var(--panel);
  text-decoration: none;
  transition: border-color 160ms var(--ease), background 160ms var(--ease);
}

.page-contact .ct-faq-list a:hover,
.page-contact .ct-faq-list a:focus-visible {
  border-left-color: var(--accent);
  background: var(--layer);
}

.page-contact .ct-faq-q {
  font-size: 15.5px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--ink);
}

.page-contact .ct-faq-a {
  font-family: var(--font-mono);
  font-size: 12.5px;
  line-height: 1.6;
  letter-spacing: 0.03em;
  color: var(--grey);
}

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

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

@media (min-width: 900px) {
  .page-contact .ct-hero {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: end;
    gap: clamp(28px, 4vw, 60px);
  }

  .page-contact .ct-split {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    align-items: start;
  }

  .page-contact .ct-cats-body {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
  }

  .page-contact .ct-cats-art {
    position: sticky;
    top: 112px;
  }
}

@media (min-width: 1080px) {
  .page-contact .ct-coop-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .ct-input,
  .page-contact .ct-anchors a,
  .page-contact .ct-faq-list a {
    transition: none;
  }
}