.page-contact {
  --ct-line-dark: rgba(251, 246, 236, 0.22);
  --ct-paper-soft: rgba(251, 246, 236, 0.78);
  background: var(--rice-50);
  color: var(--sauce-950);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.75;
  overflow-x: hidden;
}

.page-contact .ct-h2 {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(30px, 4.6vw, 52px);
  line-height: 1.08;
  letter-spacing: -0.012em;
  color: var(--sauce-950);
}

/* ---------- 首屏 ---------- */
.page-contact .ct-hero {
  position: relative;
  padding: clamp(104px, 12vw, 152px) 0 clamp(56px, 7vw, 96px);
  background-color: var(--sauce-800);
  background-image:
    linear-gradient(rgba(251, 246, 236, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(251, 246, 236, 0.045) 1px, transparent 1px);
  background-size: 64px 64px;
  color: var(--rice-50);
}

.page-contact .ct-hero::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  height: 1px;
  background: var(--pepper-500);
  opacity: 0.85;
}

.page-contact .ct-crumbs {
  margin-bottom: clamp(26px, 4vw, 46px);
}

.page-contact .ct-crumbs .yb-crumbs-link {
  color: var(--pepper-300);
}

.page-contact .ct-crumbs .yb-crumbs-sep,
.page-contact .ct-crumbs-current {
  color: rgba(251, 246, 236, 0.6);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
}

.page-contact .ct-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(32px, 5vw, 56px);
}

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

.page-contact .ct-eyebrow {
  color: var(--pepper-300);
}

.page-contact .ct-hero-title {
  margin: 16px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(38px, 6.4vw, 80px);
  line-height: 1.04;
  letter-spacing: -0.018em;
  color: var(--white);
}

.page-contact .ct-hero-title-em {
  color: var(--pepper-300);
}

.page-contact .ct-hero-lead {
  max-width: 42em;
  margin: 24px 0 0;
  font-size: clamp(16px, 1.7vw, 19px);
  color: var(--ct-paper-soft);
}

.page-contact .ct-coords {
  margin-top: clamp(30px, 4vw, 44px);
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0 40px;
}

.page-contact .ct-coord {
  padding: 20px 0 22px;
  border-top: 1px solid var(--ct-line-dark);
}

.page-contact .ct-coord-label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--pepper-300);
}

.page-contact .ct-coord-value {
  margin: 8px 0 0;
  font-family: var(--font-mono);
  font-size: clamp(25px, 3.9vw, 40px);
  line-height: 1.15;
  letter-spacing: -0.01em;
  color: var(--white);
  overflow-wrap: anywhere;
}

.page-contact .ct-coord-value--mail {
  font-size: clamp(16px, 2.7vw, 27px);
}

.page-contact .ct-coord-note {
  margin: 8px 0 0;
  font-size: 13.5px;
  color: rgba(251, 246, 236, 0.66);
}

.page-contact .ct-copy-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-top: 14px;
}

.page-contact .ct-copy {
  padding: 9px 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
}

.page-contact .ct-copy-status {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--celadon-200);
}

.page-contact .ct-note {
  margin: 24px 0 0;
  padding-left: 14px;
  border-left: 2px solid var(--pepper-500);
  font-size: 14px;
  line-height: 1.7;
  color: rgba(251, 246, 236, 0.74);
}

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

.page-contact .ct-figure {
  margin: 0;
  border: 1px solid var(--ct-line-dark);
  background: rgba(43, 11, 13, 0.28);
}

.page-contact .ct-figure .yb-figure-img,
.page-contact .ct-flow-figure .yb-figure-img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}

.page-contact .ct-caption {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 8px 14px;
  padding: 12px 14px;
  border-top: 1px solid var(--ct-line-dark);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: rgba(251, 246, 236, 0.7);
}

.page-contact .ct-fig-tag {
  color: var(--pepper-300);
}

.page-contact .ct-fig-tag--dark {
  color: var(--sauce-600);
}

.page-contact .ct-side-stat {
  margin: 18px 0 0;
  font-size: 14px;
  color: rgba(251, 246, 236, 0.72);
}

.page-contact .ct-side-num {
  margin-right: 8px;
  font-family: var(--font-mono);
  font-size: 28px;
  font-weight: 700;
  color: var(--pepper-300);
}

/* ---------- 合作流程 ---------- */
.page-contact .ct-flow-section {
  padding: clamp(56px, 8vw, 108px) 0;
  background: var(--rice-50);
}

.page-contact .ct-head-grid {
  align-items: end;
}

.page-contact .ct-head-side p {
  margin: 0;
  padding-top: 16px;
  border-top: 1px solid var(--line-300);
  font-size: 16px;
  color: var(--ink-500);
}

.page-contact .ct-flow-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(32px, 4vw, 48px);
  margin-top: clamp(34px, 5vw, 56px);
}

.page-contact .ct-flow {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--sauce-950);
}

.page-contact .ct-step {
  display: grid;
  grid-template-columns: 54px minmax(0, 1fr);
  gap: 16px;
  padding: 22px 0 24px;
  border-bottom: 1px solid var(--line-300);
}

.page-contact .ct-step-num {
  padding-top: 3px;
  font-family: var(--font-mono);
  font-size: 15px;
  letter-spacing: 0.06em;
  color: var(--pepper-500);
}

.page-contact .ct-step-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(18px, 2vw, 22px);
  line-height: 1.35;
  color: var(--sauce-950);
}

.page-contact .ct-step-body p {
  margin: 8px 0 0;
  font-size: 15.5px;
  color: var(--ink-500);
}

.page-contact .ct-flow-figure {
  margin: 0;
  border: 1px solid var(--line-300);
  background: var(--rice-100);
}

.page-contact .ct-flow-figure .ct-caption {
  border-top: 1px solid var(--line-300);
  color: var(--ink-500);
}

/* ---------- 咨询准备 ---------- */
.page-contact .ct-prep-section {
  padding: clamp(56px, 8vw, 104px) 0;
  background: var(--rice-100);
}

.page-contact .ct-prep-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 4vw, 52px);
}

.page-contact .ct-prep-lead {
  margin: 18px 0 0;
  max-width: 34em;
  font-size: 15.5px;
  color: var(--ink-500);
}

.page-contact .ct-prep-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0 32px;
}

.page-contact .ct-prep-item {
  padding: 15px 0 20px;
  border-top: 1px solid var(--sauce-600);
}

.page-contact .ct-prep-num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--sauce-600);
}

.page-contact .ct-prep-item h3 {
  margin: 6px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 18px;
  line-height: 1.35;
  color: var(--sauce-950);
}

.page-contact .ct-prep-item p {
  margin: 6px 0 0;
  font-size: 15px;
  color: var(--ink-500);
}

.page-contact .ct-accordion {
  margin-top: clamp(32px, 4vw, 48px);
  border-top: 1px solid var(--sauce-950);
}

.page-contact .ct-acc {
  border-bottom: 1px solid var(--line-300);
}

.page-contact .ct-acc summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 17px 0;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 17px;
  line-height: 1.4;
  color: var(--sauce-950);
}

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

.page-contact .ct-acc summary::after {
  content: "+";
  flex: none;
  font-family: var(--font-mono);
  font-size: 20px;
  line-height: 1;
  color: var(--pepper-500);
}

.page-contact .ct-acc[open] summary::after {
  content: "–";
}

.page-contact .ct-acc-body {
  padding: 2px 0 20px;
}

.page-contact .ct-acc-body ul {
  margin: 0;
  padding-left: 18px;
  font-size: 15px;
  color: var(--ink-500);
}

.page-contact .ct-acc-body li {
  margin: 6px 0;
}

.page-contact .ct-acc-body p {
  margin: 0;
  font-size: 15px;
  color: var(--ink-500);
}

/* ---------- 用户支持 ---------- */
.page-contact .ct-support-section {
  padding: clamp(56px, 8vw, 108px) 0;
  background: var(--rice-50);
}

.page-contact .ct-support-lead {
  max-width: 44em;
  margin: 18px 0 0;
  font-size: 16px;
  color: var(--ink-500);
}

.page-contact .ct-support-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
  margin-top: clamp(30px, 4vw, 48px);
}

.page-contact .ct-support-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 24px 22px 22px;
  border: 1px solid var(--line-300);
  border-top: 3px solid var(--sauce-600);
  background: var(--white);
  transition: border-color 0.25s var(--ease), transform 0.25s var(--ease);
}

.page-contact .ct-support-card:hover {
  border-top-color: var(--pepper-500);
  transform: translateY(-2px);
}

.page-contact .ct-node {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--celadon-600);
}

.page-contact .ct-node::before {
  content: "";
  width: 7px;
  height: 7px;
  background: var(--celadon-600);
}

.page-contact .ct-support-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(18px, 2vw, 22px);
  line-height: 1.35;
  color: var(--sauce-950);
}

.page-contact .ct-support-text {
  margin: 0;
  flex: 1 1 auto;
  font-size: 15px;
  color: var(--ink-500);
}

.page-contact .ct-support-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  margin: 4px 0 0;
}

.page-contact .ct-support-link {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.04em;
  color: var(--sauce-600);
  text-decoration: none;
  border-bottom: 1px solid var(--pepper-500);
  padding-bottom: 2px;
}

.page-contact .ct-support-link:hover {
  color: var(--pepper-500);
}

/* ---------- 常见问题 ---------- */
.page-contact .ct-faq-section {
  padding: clamp(56px, 8vw, 104px) 0;
  background: var(--rice-100);
}

.page-contact .ct-faq-list {
  max-width: 900px;
  margin-top: clamp(26px, 3.5vw, 40px);
}

.page-contact .ct-faq-item {
  margin-bottom: 10px;
  border: 1px solid var(--line-300);
  border-bottom: 1px solid var(--line-300);
  background: var(--rice-50);
}

.page-contact .ct-faq-item summary {
  padding: 16px 18px;
}

.page-contact .ct-faq-item .ct-acc-body {
  padding: 0 18px 18px;
}

/* ---------- 收束带 ---------- */
.page-contact .ct-band {
  padding: clamp(44px, 6vw, 76px) 0;
  background: var(--sauce-800);
  border-top: 3px solid var(--pepper-500);
  color: var(--rice-50);
}

.page-contact .ct-band-inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 26px;
}

.page-contact .ct-band .yb-eyebrow {
  color: var(--pepper-300);
}

.page-contact .ct-band h2 {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(24px, 3.3vw, 38px);
  line-height: 1.18;
  color: var(--white);
}

.page-contact .ct-band p {
  margin: 14px 0 0;
  max-width: 48em;
  font-size: 15.5px;
  color: rgba(251, 246, 236, 0.8);
}

.page-contact .ct-band-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-contact .ct-band .yb-btn--ghost {
  border-color: rgba(251, 246, 236, 0.5);
  color: var(--rice-50);
}

.page-contact .ct-band .yb-btn--ghost:hover {
  border-color: var(--pepper-300);
  color: var(--pepper-300);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-contact .ct-prep-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 720px) {
  .page-contact .ct-coords {
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  }
}

@media (min-width: 900px) {
  .page-contact .ct-hero-grid {
    grid-template-columns: minmax(0, 1.18fr) minmax(0, 0.82fr);
    align-items: start;
  }

  .page-contact .ct-flow-grid {
    grid-template-columns: minmax(0, 1.45fr) minmax(0, 0.85fr);
    align-items: start;
  }

  .page-contact .ct-flow-figure {
    position: sticky;
    top: 108px;
  }

  .page-contact .ct-prep-grid {
    grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
    align-items: start;
  }

  .page-contact .ct-support-grid {
    grid-template-columns: repeat(12, minmax(0, 1fr));
    gap: 20px;
  }

  .page-contact .ct-support-card:nth-child(1) {
    grid-column: span 5;
  }

  .page-contact .ct-support-card:nth-child(2) {
    grid-column: span 7;
  }

  .page-contact .ct-support-card:nth-child(3) {
    grid-column: span 7;
  }

  .page-contact .ct-support-card:nth-child(4) {
    grid-column: span 5;
  }

  .page-contact .ct-band-inner {
    grid-template-columns: minmax(0, 1.3fr) auto;
    align-items: center;
    gap: 32px;
  }
}

@media (max-width: 420px) {
  .page-contact .ct-step {
    grid-template-columns: 40px minmax(0, 1fr);
    gap: 12px;
  }

  .page-contact .ct-support-card {
    padding: 20px 16px 18px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .ct-support-card {
    transition: none;
  }

  .page-contact .ct-support-card:hover {
    transform: none;
  }
}