/* ===== 联系我们 · 页面专属样式（作用域 .page-contact） ===== */
.page-contact {
  --ct-pad: clamp(20px, 4vw, 44px);
  --ct-split-gap: clamp(26px, 4vw, 56px);
  --ct-cut: 18px;
  display: block;
  color: var(--slate);
}

/* ---------- 首屏 ---------- */
.page-contact .ct-hero {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(circle at 82% 6%, rgba(44, 232, 216, 0.15), transparent 46%),
    radial-gradient(circle at 4% 98%, rgba(123, 77, 255, 0.2), transparent 54%),
    linear-gradient(158deg, var(--indigo) 0%, var(--void) 68%);
}

.page-contact .ct-hero::after {
  content: "";
  position: absolute;
  inset: clamp(10px, 1.8vw, 20px);
  border: 1px solid rgba(140, 151, 184, 0.18);
  pointer-events: none;
}

.page-contact .ct-hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 46px);
  align-items: center;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: clamp(30px, 6vw, 70px) var(--ct-pad) clamp(56px, 9vw, 108px);
}

.page-contact .ct-kicker {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-contact .crumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 20px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--mute);
}

.page-contact .crumbs a {
  color: var(--slate);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

.page-contact .crumbs a:hover,
.page-contact .crumbs a:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

.page-contact .ct-title {
  margin: 0 0 18px;
  font-family: var(--font-display);
  font-size: clamp(30px, 6.2vw, 58px);
  font-weight: 900;
  line-height: 1.06;
  letter-spacing: -0.02em;
  color: var(--paper);
}

.page-contact .ct-lead {
  margin: 0 0 26px;
  max-width: 40ch;
  font-size: clamp(15px, 1.7vw, 17px);
  line-height: 1.78;
  color: var(--slate);
}

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

.page-contact .ct-hero-figure {
  position: relative;
  margin: 0;
  border: 1px solid var(--line);
  background: rgba(7, 14, 36, 0.6);
  overflow: hidden;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--ct-cut)), calc(100% - var(--ct-cut)) 100%, 0 100%);
}

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

.page-contact .ct-hero-caption {
  position: absolute;
  left: 14px;
  bottom: 12px;
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--cyan);
  background: rgba(7, 14, 36, 0.78);
  padding: 4px 8px;
  border-left: 2px solid var(--cyan);
}

/* ---------- 章节标题组 ---------- */
.page-contact .ct-sec-head {
  margin-bottom: clamp(20px, 3vw, 34px);
  border-top: 1px solid var(--line);
  padding-top: 18px;
}

.page-contact .ct-sec-num {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--violet);
}

.page-contact .ct-sec-title {
  margin: 0 0 12px;
  font-family: var(--font-heading);
  font-size: clamp(22px, 3.6vw, 36px);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-contact .ct-sec-sub {
  margin: 0;
  max-width: 56ch;
  font-size: 15px;
  line-height: 1.76;
  color: var(--slate);
}

/* ---------- 联系通道卡片 ---------- */
.page-contact .ct-channels {
  position: relative;
  z-index: 2;
  margin-top: clamp(-34px, -4vw, -18px);
  padding-bottom: clamp(44px, 7vw, 86px);
}

.page-contact .ct-card-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-contact .ct-card {
  display: grid;
  align-content: start;
  gap: 10px;
  background: var(--indigo);
  padding: clamp(20px, 3vw, 30px);
  clip-path: polygon(0 0, calc(100% - var(--ct-cut)) 0, 100% var(--ct-cut), 100% 100%, 0 100%);
  transition: transform 0.25s ease, box-shadow 0.25s ease, background-color 0.25s ease;
}

.page-contact .ct-card:hover {
  transform: translateY(-4px);
  background: #14204f;
  box-shadow: 0 0 0 1px rgba(44, 232, 216, 0.4), 0 20px 42px -24px rgba(44, 232, 216, 0.7);
}

.page-contact .ct-card-tag {
  margin: 0;
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--cyan);
}

.page-contact .ct-card-name {
  margin: 0;
  font-family: var(--font-heading);
  font-size: 19px;
  font-weight: 700;
  color: var(--paper);
}

.page-contact .ct-card-value {
  margin: 0;
  padding: 10px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: clamp(13px, 1.5vw, 15px);
  line-height: 1.6;
  color: var(--cyan);
  word-break: break-word;
}

.page-contact .ct-card-fit {
  margin: 0;
  font-size: 14px;
  line-height: 1.74;
  color: var(--paper);
  opacity: 0.9;
}

.page-contact .ct-card-note {
  margin: 0;
  font-size: 13px;
  line-height: 1.72;
  color: var(--mute);
}

/* ---------- 通用左右分栏 ---------- */
.page-contact .ct-split {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--ct-split-gap);
  align-items: start;
}

/* ---------- 响应时间轴 ---------- */
.page-contact .ct-response {
  padding: clamp(44px, 7vw, 88px) 0;
  background: linear-gradient(180deg, var(--void) 0%, rgba(16, 26, 68, 0.55) 100%);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

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

.page-contact .ct-timeline li {
  display: grid;
  grid-template-columns: 1fr;
  gap: 6px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}

.page-contact .ct-tl-time {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--violet);
}

.page-contact .ct-tl-title {
  margin: 0 0 6px;
  font-family: var(--font-heading);
  font-size: 16px;
  font-weight: 700;
  color: var(--paper);
}

.page-contact .ct-tl-body p {
  margin: 0;
  font-size: 14px;
  line-height: 1.74;
  color: var(--slate);
}

.page-contact .ct-response-figure {
  margin: 0;
  border: 1px solid var(--line);
  background: rgba(7, 14, 36, 0.7);
  padding: 14px;
}

.page-contact .ct-response-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: contain;
}

.page-contact .ct-figure-caption {
  margin-top: 12px;
  padding-top: 10px;
  border-top: 1px solid var(--line);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--mute);
}

/* ---------- 表单说明（奶油纸区） ---------- */
.page-contact .ct-form {
  padding: clamp(46px, 7vw, 92px) 0;
  background: var(--paper);
  color: var(--brown);
}

.page-contact .ct-form .ct-sec-head {
  border-top-color: rgba(27, 20, 16, 0.22);
}

.page-contact .ct-form .ct-sec-num {
  color: #8b3a1c;
}

.page-contact .ct-form .ct-sec-title {
  color: var(--brown);
}

.page-contact .ct-form .ct-sec-sub {
  color: rgba(27, 20, 16, 0.72);
}

.page-contact .ct-fields {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: rgba(27, 20, 16, 0.18);
  border: 1px solid rgba(27, 20, 16, 0.2);
}

.page-contact .ct-field {
  display: grid;
  align-content: start;
  gap: 8px;
  background: var(--paper);
  padding: clamp(18px, 2.6vw, 26px);
}

.page-contact .ct-field-num {
  margin: 0;
  font-size: 11px;
  letter-spacing: 0.14em;
  color: #8b3a1c;
}

.page-contact .ct-field-name {
  margin: 0;
  font-family: var(--font-heading);
  font-size: 17px;
  font-weight: 700;
  color: var(--brown);
}

.page-contact .ct-field-text {
  margin: 0;
  font-size: 14px;
  line-height: 1.76;
  color: rgba(27, 20, 16, 0.84);
}

.page-contact .ct-form-note {
  margin: 26px 0 0;
  max-width: 68ch;
  padding: 16px 20px;
  border-left: 3px solid var(--orange);
  background: rgba(27, 20, 16, 0.06);
  font-size: 15px;
  line-height: 1.8;
  color: rgba(27, 20, 16, 0.88);
}

/* ---------- 合作与内容建议 ---------- */
.page-contact .ct-partner {
  padding: clamp(44px, 7vw, 88px) 0;
  background: var(--void);
  border-bottom: 1px solid var(--line);
}

.page-contact .ct-partner-text {
  margin: 0;
  max-width: 46ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--slate);
}

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

.page-contact .ct-partner-item {
  background: var(--void);
  padding: clamp(18px, 2.6vw, 26px);
  transition: background-color 0.25s ease;
}

.page-contact .ct-partner-item:hover {
  background: var(--indigo);
}

.page-contact .ct-partner-name {
  margin: 0 0 8px;
  font-family: var(--font-heading);
  font-size: 17px;
  font-weight: 700;
  color: var(--cyan);
}

.page-contact .ct-partner-item p {
  margin: 0;
  font-size: 14px;
  line-height: 1.76;
  color: var(--slate);
}

/* ---------- 常见问题直达 ---------- */
.page-contact .ct-faq {
  padding: clamp(44px, 7vw, 88px) 0;
  background: var(--void);
  border-bottom: 1px solid var(--line);
}

.page-contact .ct-faq-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.page-contact .ct-faq-item {
  display: grid;
  gap: 8px;
  padding: 18px 20px;
  border: 1px solid var(--line);
  background: rgba(16, 26, 68, 0.5);
  text-decoration: none;
  transition: border-color 0.25s ease, background-color 0.25s ease, transform 0.25s ease;
}

.page-contact .ct-faq-item:hover,
.page-contact .ct-faq-item:focus-visible {
  border-color: var(--cyan);
  background: var(--indigo);
  transform: translateY(-3px);
}

.page-contact .ct-faq-key {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--violet);
}

.page-contact .ct-faq-q {
  font-family: var(--font-heading);
  font-size: 16px;
  font-weight: 700;
  line-height: 1.45;
  color: var(--paper);
}

.page-contact .ct-faq-dest {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--mute);
}

.page-contact .ct-faq-more {
  margin: 22px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--slate);
}

.page-contact .ct-faq-more a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(44, 232, 216, 0.4);
}

.page-contact .ct-faq-more a:hover,
.page-contact .ct-faq-more a:focus-visible {
  border-bottom-color: var(--cyan);
}

/* ---------- 到访说明 ---------- */
.page-contact .ct-visit {
  padding: clamp(44px, 7vw, 88px) 0 clamp(52px, 8vw, 96px);
  background: var(--void);
}

.page-contact .ct-visit-list {
  list-style: none;
  margin: 0 0 20px;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-contact .ct-visit-list li {
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
  font-size: 14px;
  line-height: 1.76;
  color: var(--slate);
}

.page-contact .ct-visit-list span {
  display: inline-block;
  min-width: 56px;
  margin-right: 10px;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--cyan);
}

.page-contact .ct-visit-note {
  margin: 0;
  max-width: 52ch;
  font-size: 14px;
  line-height: 1.8;
  color: var(--mute);
}

.page-contact .ct-visit-figure {
  margin: 0;
  padding: clamp(14px, 2.4vw, 24px);
  border: 1px solid var(--line);
  background: linear-gradient(150deg, rgba(16, 26, 68, 0.9), rgba(7, 14, 36, 0.55));
  clip-path: polygon(0 0, 100% 0, 100% 100%, var(--ct-cut) 100%, 0 calc(100% - var(--ct-cut)));
}

.page-contact .ct-visit-figure svg {
  display: block;
  width: 100%;
  height: auto;
}

/* ---------- 显现初态 ---------- */
.js .page-contact [data-reveal] {
  opacity: 0;
  transform: translateY(14px);
}

.js .page-contact [data-reveal].is-visible {
  opacity: 1;
  transform: none;
  transition: opacity 0.5s ease, transform 0.5s ease;
}

/* ---------- 平板 / 桌面 ---------- */
@media (min-width: 760px) {
  .page-contact .ct-channels {
    margin-top: clamp(-72px, -5vw, -40px);
  }

  .page-contact .ct-card-row {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

  .page-contact .ct-faq-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1px;
    background: var(--line);
    border: 1px solid var(--line);
  }

  .page-contact .ct-faq-item {
    border: 0;
  }

  .page-contact .ct-timeline li {
    grid-template-columns: 132px minmax(0, 1fr);
    gap: 20px;
    align-items: baseline;
  }
}

@media (min-width: 900px) {
  .page-contact .ct-hero-grid {
    grid-template-columns: minmax(0, 1.06fr) minmax(0, 0.94fr);
    padding-bottom: clamp(104px, 9vw, 152px);
  }

  .page-contact .ct-split {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.86fr);
    gap: clamp(32px, 5vw, 68px);
  }

  .page-contact .ct-split--reverse {
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1fr);
  }

  .page-contact .ct-partner .ct-split--reverse {
    align-items: start;
  }
}

@media (min-width: 1120px) {
  .page-contact .ct-faq-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

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

  .page-contact .ct-card:hover,
  .page-contact .ct-faq-item:hover,
  .page-contact .ct-faq-item:focus-visible {
    transform: none;
  }

  .js .page-contact [data-reveal] {
    opacity: 1;
    transform: none;
  }
}