.page-contact {
  --ct-glow: rgba(53, 240, 192, 0.14);
  --ct-amber-soft: rgba(255, 138, 61, 0.16);
  position: relative;
  isolation: isolate;
  padding-bottom: clamp(48px, 8vw, 120px);
}

.page-contact::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(31, 74, 61, 0.22) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(31, 74, 61, 0.22) 1px, transparent 1px);
  background-size: 12.5% 180px;
  mask-image: linear-gradient(180deg, transparent 0%, #000 12%, #000 88%, transparent 100%);
  -webkit-mask-image: linear-gradient(180deg, transparent 0%, #000 12%, #000 88%, transparent 100%);
  opacity: 0.7;
}

.page-contact .breadcrumb {
  padding-top: clamp(96px, 12vw, 132px);
  padding-bottom: clamp(8px, 2vw, 20px);
}

/* ---------- 首屏 ---------- */
.ct-hero {
  position: relative;
  padding-top: clamp(12px, 3vw, 32px);
  padding-bottom: clamp(48px, 7vw, 96px);
}

.ct-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 4vw, 56px);
  align-items: center;
}

.ct-hero-copy {
  max-width: 640px;
}

.ct-hero h1 {
  margin: 12px 0 20px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(40px, 8.4vw, 104px);
  line-height: 0.94;
  letter-spacing: -0.02em;
  color: var(--text);
}

.ct-hero .lead {
  margin: 0;
  max-width: 560px;
  color: var(--muted);
  font-size: clamp(15px, 1.05vw, 17px);
  line-height: 1.8;
}

.ct-hero-facts {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 18px 24px;
  margin: 32px 0 30px;
  padding: 22px 0 0;
  border-top: 1px solid var(--line);
}

.ct-fact {
  min-width: 0;
}

.ct-fact-label {
  margin: 0 0 6px;
  color: var(--muted);
  font-size: 12px;
  letter-spacing: 0.12em;
}

.ct-fact-value {
  margin: 0;
  color: var(--neon);
  font-size: clamp(18px, 1.8vw, 24px);
  font-variant-numeric: tabular-nums;
  line-height: 1.2;
}

.ct-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.ct-hero-media {
  margin: 0;
  border: 1px solid var(--line);
}

.ct-hero-media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.85) contrast(1.05);
}

@media (min-width: 900px) {
  .ct-hero-grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    gap: clamp(36px, 5vw, 80px);
  }
  .ct-hero-media {
    transform: translateY(18px);
  }
}

/* ---------- 合作方式 ---------- */
.ct-ways {
  padding-top: clamp(32px, 5vw, 72px);
  padding-bottom: clamp(32px, 5vw, 72px);
}

.ct-way-list {
  list-style: none;
  margin: clamp(28px, 4vw, 56px) 0 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.ct-way {
  position: relative;
  border-bottom: 1px solid var(--line);
  padding: clamp(24px, 3.4vw, 44px) 0;
}

.ct-way-row {
  display: flex;
  align-items: baseline;
  gap: clamp(14px, 2vw, 28px);
}

.ct-way-num {
  flex: none;
  color: var(--turf);
  font-size: clamp(14px, 1.4vw, 18px);
  letter-spacing: 0.1em;
  transition: color 0.3s var(--ease);
}

.ct-way-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(30px, 5.4vw, 72px);
  line-height: 1;
  letter-spacing: -0.015em;
  color: var(--text);
  transition: color 0.3s var(--ease), transform 0.4s var(--ease);
}

.ct-way-line {
  flex: 1;
  height: 1px;
  min-width: 24px;
  background: linear-gradient(to right, var(--turf), transparent);
  transform: scaleX(0.25);
  transform-origin: left center;
  transition: transform 0.45s var(--ease), background 0.45s var(--ease);
}

.ct-way:hover .ct-way-title,
.ct-way:focus-within .ct-way-title {
  color: var(--neon);
  transform: translateX(10px);
}

.ct-way:hover .ct-way-line,
.ct-way:focus-within .ct-way-line {
  transform: scaleX(1);
  background: linear-gradient(to right, var(--neon), transparent);
}

.ct-way:hover .ct-way-num,
.ct-way:focus-within .ct-way-num {
  color: var(--neon);
}

.ct-way-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
  margin-top: clamp(14px, 2vw, 24px);
  padding-left: 0;
}

.ct-way-desc {
  margin: 0;
  max-width: 62ch;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.85;
}

.ct-way-meta {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.ct-way-meta li {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: baseline;
  font-size: 14px;
  line-height: 1.7;
  color: var(--text);
}

.ct-way-key {
  flex: none;
  min-width: 76px;
  color: var(--neon-soft);
  font-size: 12px;
  letter-spacing: 0.08em;
}

@media (min-width: 860px) {
  .ct-way {
    display: grid;
    grid-template-columns: minmax(0, 0.72fr) minmax(0, 1.28fr);
    gap: clamp(28px, 4vw, 64px);
    align-items: start;
  }
  .ct-way-row {
    flex-wrap: wrap;
  }
  .ct-way-line {
    flex-basis: 100%;
    margin-top: 14px;
  }
  .ct-way-body {
    margin-top: 4px;
  }
  .ct-way-meta {
    grid-template-columns: minmax(0, 1fr);
  }
}

/* ---------- 授权流程 ---------- */
.ct-flow {
  padding-top: clamp(32px, 5vw, 72px);
  padding-bottom: clamp(32px, 5vw, 72px);
}

.ct-flow-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 4vw, 56px);
  align-items: start;
}

.ct-flow-track {
  list-style: none;
  margin: clamp(24px, 3.4vw, 48px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0;
  counter-reset: ctstep;
}

.ct-flow-node {
  position: relative;
  padding: 26px 0 26px 30px;
  border-left: 1px solid var(--line);
}

.ct-flow-node::before {
  content: "";
  position: absolute;
  left: -4.5px;
  top: 32px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--board);
  border: 1px solid var(--neon);
}

.ct-flow-idx {
  display: block;
  color: var(--neon);
  font-size: 13px;
  letter-spacing: 0.12em;
  margin-bottom: 8px;
}

.ct-flow-title {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(20px, 2.2vw, 26px);
  line-height: 1.15;
  color: var(--text);
}

.ct-flow-node p {
  margin: 0 0 10px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.8;
  max-width: 40ch;
}

.ct-flow-time {
  display: inline-block;
  padding: 3px 10px;
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  color: var(--neon-soft);
  font-size: 12px;
  letter-spacing: 0.04em;
}

.ct-flow-media {
  margin: 0;
  border: 1px solid var(--line);
}

.ct-flow-media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.7) brightness(0.85);
}

@media (min-width: 760px) {
  .ct-flow-track {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 0 24px;
  }
  .ct-flow-node {
    padding: 30px 0 0;
    border-left: none;
    border-top: 1px solid var(--line);
  }
  .ct-flow-node::before {
    left: 0;
    top: -4.5px;
  }
}

@media (min-width: 1000px) {
  .ct-flow-grid {
    grid-template-columns: minmax(0, 1fr) 300px;
    gap: clamp(36px, 5vw, 72px);
  }
}

/* ---------- 勘误 ---------- */
.ct-fix {
  padding-top: clamp(40px, 6vw, 88px);
  padding-bottom: clamp(40px, 6vw, 88px);
  border-top: 1px solid var(--line);
}

.ct-fix-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 20px;
  margin-top: clamp(24px, 3.4vw, 40px);
}

.ct-fix-card {
  padding: clamp(22px, 3vw, 32px);
  background: var(--board);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  border-left: 3px solid var(--neon);
}

.ct-fix-card--amber {
  border-left-color: var(--amber);
  background: linear-gradient(180deg, var(--ct-amber-soft), var(--board) 60%);
}

.ct-fix-title {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 20px;
  letter-spacing: 0.01em;
  color: var(--text);
}

.ct-fix-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}

.ct-fix-list li {
  position: relative;
  padding-left: 18px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.8;
}

.ct-fix-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 7px;
  height: 1px;
  background: var(--neon);
}

.ct-fix-card--amber .ct-fix-list li::before {
  background: var(--amber);
}

@media (min-width: 780px) {
  .ct-fix-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 24px;
  }
}

/* ---------- 联系方式 ---------- */
.ct-contact {
  padding-top: clamp(48px, 7vw, 96px);
  padding-bottom: clamp(48px, 7vw, 96px);
  background: linear-gradient(180deg, transparent, rgba(16, 32, 26, 0.85) 30%, rgba(16, 32, 26, 0.85) 70%, transparent);
}

.ct-contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 3.6vw, 48px);
}

.ct-contact-main {
  max-width: 640px;
}

.ct-contact .section-title {
  margin: 10px 0 16px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(26px, 3.6vw, 44px);
  line-height: 1.1;
  color: var(--text);
}

.ct-contact-lead {
  margin: 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.85;
}

.ct-info-list {
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
  border-top: 1px solid var(--line);
}

.ct-info-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 6px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}

.ct-info-label {
  margin: 0;
  color: var(--muted);
  font-size: 12px;
  letter-spacing: 0.12em;
}

.ct-info-value {
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.ct-info-text {
  color: var(--text);
  font-family: var(--font-mono);
  font-size: clamp(15px, 1.6vw, 20px);
  font-variant-numeric: tabular-nums;
  word-break: break-all;
  letter-spacing: 0.01em;
}

.ct-info-text--plain {
  font-family: var(--font-body);
  font-variant-numeric: normal;
  word-break: break-word;
  line-height: 1.6;
}

.page-contact .copy-btn {
  flex: none;
  padding: 5px 12px;
  background: transparent;
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  color: var(--neon-soft);
  font-family: var(--font-body);
  font-size: 12px;
  letter-spacing: 0.06em;
  cursor: pointer;
  transition: border-color 0.25s var(--ease), color 0.25s var(--ease), background 0.25s var(--ease);
}

.page-contact .copy-btn:hover,
.page-contact .copy-btn:focus-visible {
  border-color: var(--neon);
  color: var(--neon);
  background: var(--ct-glow);
}

.page-contact .copy-btn:focus-visible {
  outline: 2px solid var(--neon);
  outline-offset: 2px;
}

.ct-contact-aside {
  margin: 0;
  padding-top: 16px;
  border-top: 1px dashed var(--line);
  color: var(--muted);
  font-size: 14px;
  line-height: 1.9;
}

.ct-inline-link {
  color: var(--neon);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 240, 192, 0.35);
  transition: border-color 0.25s var(--ease), color 0.25s var(--ease);
}

.ct-inline-link:hover,
.ct-inline-link:focus-visible {
  color: var(--neon-soft);
  border-bottom-color: var(--neon-soft);
}

@media (min-width: 880px) {
  .ct-contact-grid {
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
    gap: clamp(40px, 6vw, 96px);
  }
  .ct-contact-aside {
    grid-column: 1 / -1;
    max-width: 720px;
  }
  .ct-info-row {
    grid-template-columns: 130px minmax(0, 1fr);
    gap: 20px;
    align-items: baseline;
  }
}

/* ---------- 常见问题 ---------- */
.ct-faq {
  padding-top: clamp(40px, 6vw, 88px);
  padding-bottom: clamp(40px, 6vw, 88px);
}

.ct-faq-list {
  margin-top: clamp(20px, 3vw, 36px);
  border-top: 1px solid var(--line);
}

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

.page-contact .ct-faq-q {
  position: relative;
  display: block;
  padding: 20px 40px 20px 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(17px, 1.9vw, 22px);
  line-height: 1.35;
  color: var(--text);
  cursor: pointer;
  list-style: none;
  transition: color 0.25s var(--ease);
}

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

.page-contact .ct-faq-q::after {
  content: "+";
  position: absolute;
  right: 4px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--neon);
  font-family: var(--font-mono);
  font-size: 20px;
  line-height: 1;
  transition: transform 0.3s var(--ease);
}

.page-contact .ct-faq-item[open] > .ct-faq-q {
  color: var(--neon);
}

.page-contact .ct-faq-item[open] > .ct-faq-q::after {
  content: "–";
}

.page-contact .ct-faq-q:hover,
.page-contact .ct-faq-q:focus-visible {
  color: var(--neon-soft);
}

.page-contact .ct-faq-q:focus-visible {
  outline: 2px solid var(--neon);
  outline-offset: 2px;
}

.ct-faq-a {
  padding: 0 0 22px;
}

.ct-faq-a p {
  margin: 0;
  max-width: 64ch;
  color: var(--muted);
  font-size: 14.5px;
  line-height: 1.9;
}

.ct-faq-foot {
  margin: 28px 0 0;
  color: var(--muted);
  font-size: 13.5px;
  line-height: 1.9;
}

@media (prefers-reduced-motion: reduce) {
  .ct-way-title,
  .ct-way-line,
  .ct-way-num,
  .page-contact .copy-btn,
  .ct-inline-link,
  .page-contact .ct-faq-q {
    transition: none;
  }
}
</main>