.page-contact {
  --ct-hair: rgba(44, 58, 102, 0.6);
  --ct-panel: linear-gradient(155deg, rgba(27, 38, 80, 0.92), rgba(11, 16, 38, 0.96));
  --ct-panel-soft: rgba(18, 26, 58, 0.62);
}

/* ---------- 面包屑 ---------- */
.page-contact .breadcrumb {
  margin-top: clamp(6px, 2vw, 16px);
}

/* ---------- 首屏 ---------- */
.page-contact .ct-hero {
  padding-top: clamp(16px, 3vw, 34px);
}

.page-contact .ct-hero__grid {
  display: grid;
  gap: clamp(24px, 4vw, 40px);
  align-items: center;
}

.page-contact .ct-hero__copy h1 {
  margin: 12px 0 0;
  font-size: clamp(28px, 4.6vw, 46px);
  line-height: 1.22;
  letter-spacing: -0.01em;
}

.page-contact .ct-hero__copy .lede {
  margin-top: 16px;
}

.page-contact .ct-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-contact .ct-hero__figure {
  position: relative;
  margin: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  overflow: hidden;
  background: var(--ink-950);
  box-shadow: var(--shadow-card);
}

.page-contact .ct-hero__figure img,
.page-contact .ct-place__figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-contact .ct-hero__caption {
  display: block;
  padding: 12px 16px 14px;
  margin: 0;
  font-size: 12px;
  line-height: 1.6;
  color: var(--muted);
  border-top: 1px solid var(--line-soft);
  background: rgba(7, 11, 26, 0.7);
}

/* ---------- 联系通道分屏 ---------- */
.page-contact .ct-split {
  display: grid;
  gap: clamp(24px, 4vw, 44px);
  align-items: start;
}

.page-contact .ct-contact-card {
  position: relative;
  padding: clamp(22px, 3vw, 30px);
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  background: var(--ct-panel);
  box-shadow: var(--shadow-card);
  overflow: hidden;
  transition: transform 0.35s ease, border-color 0.35s ease;
}

.page-contact .ct-contact-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 3px;
  height: 100%;
  background: linear-gradient(180deg, var(--cyan), rgba(95, 242, 233, 0) 72%);
}

.page-contact .ct-contact-card:hover {
  transform: translateY(-4px);
  border-color: var(--cyan-40);
}

.page-contact .ct-contact-card__title {
  margin: 10px 0 0;
  font-size: clamp(20px, 2.4vw, 26px);
  line-height: 1.35;
}

.page-contact .ct-lines {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
}

.page-contact .ct-line {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 6px 12px;
  padding: 14px 0;
  border-bottom: 1px solid var(--ct-hair);
}

.page-contact .ct-line:last-child {
  border-bottom: 0;
  padding-bottom: 4px;
}

.page-contact .ct-line__key {
  grid-column: 1 / -1;
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-contact .ct-line__val {
  min-width: 0;
  align-self: center;
  font-size: 15px;
  line-height: 1.55;
  color: var(--paper);
  overflow-wrap: anywhere;
}

.page-contact .copy-btn {
  align-self: center;
  padding: 7px 14px;
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--cyan);
  background: var(--cyan-12);
  border: 1px solid var(--cyan-40);
  border-radius: var(--radius-pill);
  cursor: pointer;
  white-space: nowrap;
  transition: background 0.25s ease, color 0.25s ease, transform 0.25s ease;
}

.page-contact .copy-btn:hover {
  background: var(--cyan);
  color: var(--ink-950);
  transform: translateY(-1px);
}

.page-contact .copy-btn[data-copied] {
  color: var(--orange);
  border-color: var(--orange-20);
  background: var(--orange-20);
}

.page-contact .ct-note {
  margin: 18px 0 0;
  padding-top: 16px;
  font-size: 13px;
  line-height: 1.7;
  border-top: 1px dashed var(--ct-hair);
}

/* ---------- 技能树式咨询流程 ---------- */
.page-contact .ct-tree {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
}

.page-contact .ct-tree__step {
  position: relative;
  padding-left: 54px;
  padding-bottom: 16px;
}

.page-contact .ct-tree__step::before {
  content: "";
  position: absolute;
  left: 17px;
  top: 38px;
  bottom: -2px;
  width: 1px;
  background: linear-gradient(180deg, var(--cyan-40), var(--line));
}

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

.page-contact .ct-tree__step:last-child::before {
  display: none;
}

.page-contact .ct-tree__num {
  position: absolute;
  left: 0;
  top: 0;
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
  font-size: 13px;
  color: var(--cyan);
  background: var(--ink-800);
  border: 1px solid var(--line);
  border-radius: 50%;
  z-index: 1;
}

.page-contact .ct-tree__step details {
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--ct-panel-soft);
  transition: border-color 0.3s ease, background 0.3s ease;
}

.page-contact .ct-tree__step details[open] {
  border-color: var(--cyan-40);
  background: rgba(18, 26, 58, 0.92);
}

.page-contact .ct-tree__step summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 15px 18px;
  font-family: var(--font-heading);
  font-size: 17px;
  font-weight: 600;
  line-height: 1.45;
  color: var(--paper);
  cursor: pointer;
  list-style: none;
}

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

.page-contact .ct-tree__step summary::after {
  content: "+";
  flex: none;
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1;
  color: var(--cyan);
}

.page-contact .ct-tree__step details[open] summary::after {
  content: "\2212";
}

.page-contact .ct-tree__body {
  padding: 0 18px 18px;
  border-top: 1px solid var(--ct-hair);
}

.page-contact .ct-tree__body p {
  margin: 14px 0 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--muted);
}

/* ---------- 咨询前准备 ---------- */
.page-contact .ct-prep {
  display: grid;
  gap: 14px;
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
}

.page-contact .ct-prep__item {
  position: relative;
  padding: 20px 20px 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  background: linear-gradient(170deg, rgba(18, 26, 58, 0.86), rgba(11, 16, 38, 0.9));
  transition: border-color 0.3s ease, transform 0.3s ease;
}

.page-contact .ct-prep__item:hover {
  border-color: var(--cyan-40);
  transform: translateY(-3px);
}

.page-contact .ct-prep__key {
  display: inline-block;
  padding: 5px 11px;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--ink-950);
  background: var(--cyan);
  border-radius: var(--radius-pill);
}

.page-contact .ct-prep__text {
  margin: 14px 0 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--muted);
}

/* ---------- 合作与纠错 ---------- */
.page-contact .ct-collab__grid {
  display: grid;
  gap: var(--gap);
}

.page-contact .ct-collab__item {
  position: relative;
  padding: clamp(22px, 3vw, 32px);
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  background: var(--ct-panel);
  overflow: hidden;
}

.page-contact .ct-collab__item::after {
  content: "";
  position: absolute;
  right: -40px;
  bottom: -40px;
  width: 150px;
  height: 150px;
  border: 1px solid var(--line-soft);
  border-radius: 50%;
  pointer-events: none;
}

.page-contact .ct-collab__item h2 {
  margin: 12px 0 0;
  font-size: clamp(19px, 2.2vw, 24px);
  line-height: 1.35;
}

.page-contact .ct-collab__item p {
  margin: 14px 0 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--paper);
}

.page-contact .ct-collab__item p.muted {
  color: var(--muted);
  font-size: 13px;
}

.page-contact .ct-collab__item:nth-child(2) .data-label {
  color: var(--orange);
}

/* ---------- 地址与抽象地图 ---------- */
.page-contact .ct-place__grid {
  display: grid;
  gap: clamp(24px, 4vw, 44px);
  align-items: center;
}

.page-contact .ct-place__text h2 {
  margin: 12px 0 0;
  font-size: clamp(22px, 3vw, 32px);
  line-height: 1.34;
}

.page-contact .ct-place__text p {
  margin: 14px 0 0;
  font-size: 14.5px;
  line-height: 1.78;
}

.page-contact .ct-place__figure {
  margin: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  overflow: hidden;
  background: var(--ink-950);
}

.page-contact .ct-map {
  position: relative;
  margin-top: 24px;
  aspect-ratio: 16 / 9;
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  overflow: hidden;
  background-color: var(--ink-950);
  background-image:
    repeating-linear-gradient(0deg, var(--ct-hair) 0 1px, transparent 1px 30px),
    repeating-linear-gradient(90deg, var(--ct-hair) 0 1px, transparent 1px 30px),
    radial-gradient(120% 90% at 16% 20%, rgba(95, 242, 233, 0.12), transparent 58%),
    radial-gradient(100% 80% at 84% 80%, rgba(255, 155, 84, 0.1), transparent 60%);
}

.page-contact .ct-map__arc {
  position: absolute;
  inset: 14% 16%;
  border: 1px dashed var(--line);
  border-left-color: transparent;
  border-bottom-color: transparent;
  border-radius: 50%;
  transform: rotate(-16deg);
}

.page-contact .ct-map__dot {
  position: absolute;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 0 5px var(--cyan-12), 0 0 20px var(--cyan-40);
}

.page-contact .ct-map__dot--a {
  left: 24%;
  top: 32%;
}

.page-contact .ct-map__dot--b {
  left: 62%;
  top: 52%;
}

.page-contact .ct-map__dot--c {
  left: 41%;
  top: 74%;
  background: var(--orange);
  box-shadow: 0 0 0 5px var(--orange-20), 0 0 20px var(--orange-20);
}

.page-contact .ct-map__label {
  position: absolute;
  left: 16px;
  bottom: 14px;
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--muted);
}

/* ---------- 服务时间 ---------- */
.page-contact .ct-hours {
  padding: clamp(24px, 3.4vw, 40px);
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  background:
    linear-gradient(140deg, rgba(27, 38, 80, 0.9), rgba(7, 11, 26, 0.94));
  box-shadow: var(--shadow-card);
}

.page-contact .ct-hours__head h2 {
  margin: 12px 0 0;
  font-size: clamp(22px, 3vw, 30px);
  line-height: 1.32;
}

.page-contact .ct-hours__grid {
  display: grid;
  gap: var(--gap);
  margin-top: 28px;
}

.page-contact .ct-hours__item {
  padding-top: 18px;
  border-top: 1px solid var(--ct-hair);
}

.page-contact .ct-hours__k {
  display: block;
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-contact .ct-hours__item p {
  margin: 10px 0 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--muted);
}

/* ---------- 延伸入口 ---------- */
.page-contact .ct-more__bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 20px 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius-pill);
  background: rgba(18, 26, 58, 0.7);
}

.page-contact .ct-more__lead {
  margin: 0;
  font-size: 14px;
  color: var(--muted);
}

.page-contact .ct-more__links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 20px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-contact .ct-more__link {
  font-family: var(--font-data);
  font-size: 13px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.25s ease, color 0.25s ease;
}

.page-contact .ct-more__link:hover {
  color: var(--paper);
  border-bottom-color: var(--cyan);
}

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

@media (min-width: 900px) {
  .page-contact .ct-collab__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

@media (min-width: 980px) {
  .page-contact .ct-hero__grid {
    grid-template-columns: minmax(0, 1.06fr) minmax(0, 0.94fr);
    gap: clamp(36px, 5vw, 68px);
  }

  .page-contact .ct-split {
    grid-template-columns: minmax(300px, 372px) minmax(0, 1fr);
    gap: clamp(32px, 4.4vw, 60px);
  }

  .page-contact .ct-contact-card {
    position: sticky;
    top: 104px;
  }

  .page-contact .ct-place__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  }

  .page-contact .ct-place__figure {
    order: 2;
  }

  .page-contact .ct-place__text {
    order: 1;
  }
}

@media (max-width: 520px) {
  .page-contact .ct-line {
    grid-template-columns: minmax(0, 1fr);
  }

  .page-contact .copy-btn {
    justify-self: start;
    margin-top: 4px;
  }

  .page-contact .ct-more__bar {
    border-radius: var(--radius-card);
  }

  .page-contact .ct-tree__step {
    padding-left: 46px;
  }

  .page-contact .ct-tree__num {
    width: 32px;
    height: 32px;
    font-size: 12px;
  }

  .page-contact .ct-tree__step::before {
    left: 15px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .ct-contact-card,
  .page-contact .ct-prep__item,
  .page-contact .copy-btn,
  .page-contact .ct-more__link {
    transition-duration: 0.001ms;
  }

  .page-contact .ct-contact-card:hover,
  .page-contact .ct-prep__item:hover,
  .page-contact .copy-btn:hover {
    transform: none;
  }
}