.page-contact {
  --ct-pad: clamp(22px, 3vw, 36px);
  --ct-gap: clamp(20px, 3vw, 40px);
}

/* ---------- 面包屑与首屏 ---------- */
.page-contact .yb-crumb {
  margin-bottom: clamp(18px, 3vw, 32px);
}

.page-contact .ct-intro {
  display: grid;
  gap: clamp(24px, 4vw, 44px);
  padding-bottom: clamp(8px, 2vw, 20px);
}

.page-contact .ct-intro__lead {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.page-contact .ct-intro .yb-h1 {
  max-width: 17ch;
  margin: 0;
}

.page-contact .ct-intro .yb-lede {
  max-width: 60ch;
  margin: 0;
}

.page-contact .ct-ready {
  border-left: 2px solid var(--violet);
  padding: 2px 0 2px 20px;
}

.page-contact .ct-ready__title {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--muted);
}

.page-contact .ct-ready__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
  counter-reset: ctstep;
}

.page-contact .ct-ready__list li {
  counter-increment: ctstep;
  display: grid;
  grid-template-columns: 26px minmax(0, 1fr);
  gap: 8px;
  font-size: 15px;
  line-height: 1.6;
  color: var(--paper);
}

.page-contact .ct-ready__list li::before {
  content: "0" counter(ctstep);
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--cyan);
  padding-top: 3px;
}

/* ---------- 渠道分流面板 ---------- */
.page-contact .ct-pick {
  position: relative;
  display: grid;
  margin-top: clamp(22px, 4vw, 38px);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  overflow: hidden;
  background: linear-gradient(158deg, rgba(14, 26, 43, 0.92), rgba(7, 8, 13, 0.96));
}

.page-contact .ct-pick__radio {
  position: absolute;
  opacity: 0;
  width: 1px;
  height: 1px;
  pointer-events: none;
}

.page-contact .ct-pick__list {
  display: grid;
  border-bottom: 1px solid var(--line);
}

.page-contact .ct-pick__tab {
  position: relative;
  display: grid;
  gap: 5px;
  padding: 18px 22px 18px 26px;
  cursor: pointer;
  border-bottom: 1px solid var(--line);
  transition: background-color 200ms var(--ease);
}

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

.page-contact .ct-pick__tab::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--magenta);
  transform: scaleY(0);
  transform-origin: top center;
  transition: transform 220ms var(--ease);
}

.page-contact .ct-pick__tab-name {
  font-size: 16px;
  font-weight: 600;
  color: var(--paper);
  line-height: 1.4;
}

.page-contact .ct-pick__tab-hint {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--muted);
}

.page-contact .ct-pick__tab:hover {
  background: rgba(160, 107, 255, 0.07);
}

.page-contact .ct-pick__tab:hover::before {
  transform: scaleY(0.45);
}

.page-contact #ct-a:checked ~ .ct-pick__list label[for="ct-a"],
.page-contact #ct-b:checked ~ .ct-pick__list label[for="ct-b"],
.page-contact #ct-c:checked ~ .ct-pick__list label[for="ct-c"],
.page-contact #ct-d:checked ~ .ct-pick__list label[for="ct-d"] {
  background: rgba(160, 107, 255, 0.1);
}

.page-contact #ct-a:checked ~ .ct-pick__list label[for="ct-a"]::before,
.page-contact #ct-b:checked ~ .ct-pick__list label[for="ct-b"]::before,
.page-contact #ct-c:checked ~ .ct-pick__list label[for="ct-c"]::before,
.page-contact #ct-d:checked ~ .ct-pick__list label[for="ct-d"]::before {
  transform: scaleY(1);
}

.page-contact #ct-a:checked ~ .ct-pick__list label[for="ct-a"] .ct-pick__tab-hint,
.page-contact #ct-b:checked ~ .ct-pick__list label[for="ct-b"] .ct-pick__tab-hint,
.page-contact #ct-c:checked ~ .ct-pick__list label[for="ct-c"] .ct-pick__tab-hint,
.page-contact #ct-d:checked ~ .ct-pick__list label[for="ct-d"] .ct-pick__tab-hint {
  color: var(--violet);
}

.page-contact #ct-a:focus-visible ~ .ct-pick__list label[for="ct-a"],
.page-contact #ct-b:focus-visible ~ .ct-pick__list label[for="ct-b"],
.page-contact #ct-c:focus-visible ~ .ct-pick__list label[for="ct-c"],
.page-contact #ct-d:focus-visible ~ .ct-pick__list label[for="ct-d"] {
  outline: 2px solid var(--cyan);
  outline-offset: -4px;
}

.page-contact .ct-pick__panels {
  padding: var(--ct-pad);
}

.page-contact .ct-pick__panel {
  display: none;
}

.page-contact .ct-pick__panel--a {
  display: block;
}

.page-contact #ct-b:checked ~ .ct-pick__panels .ct-pick__panel--a,
.page-contact #ct-c:checked ~ .ct-pick__panels .ct-pick__panel--a,
.page-contact #ct-d:checked ~ .ct-pick__panels .ct-pick__panel--a {
  display: none;
}

.page-contact #ct-b:checked ~ .ct-pick__panels .ct-pick__panel--b,
.page-contact #ct-c:checked ~ .ct-pick__panels .ct-pick__panel--c,
.page-contact #ct-d:checked ~ .ct-pick__panels .ct-pick__panel--d {
  display: block;
}

.page-contact .ct-pick__panel .yb-h3 {
  margin: 0 0 12px;
}

.page-contact .ct-pick__panel p {
  margin: 0;
  color: var(--paper);
  font-size: 15px;
  line-height: 1.8;
  max-width: 58ch;
}

.page-contact .ct-steps {
  list-style: none;
  margin: 20px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
  counter-reset: ctc;
}

.page-contact .ct-steps li {
  position: relative;
  counter-increment: ctc;
  padding-left: 40px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--muted);
}

.page-contact .ct-steps li::before {
  content: counter(ctc, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 1px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--cyan);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 2px 6px;
  line-height: 1.3;
}

.page-contact .ct-pick__panel .yb-btn {
  margin-top: 24px;
}

/* ---------- 全宽夜景横幅 ---------- */
.page-contact .ct-banner {
  position: relative;
  margin: clamp(46px, 8vw, 108px) 0;
  overflow: hidden;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-contact .ct-banner img {
  display: block;
  width: 100%;
  height: clamp(200px, 32vw, 380px);
  object-fit: cover;
  filter: saturate(0.68) brightness(0.7);
}

.page-contact .ct-banner::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(90deg, rgba(7, 8, 13, 0.94) 0%, rgba(7, 8, 13, 0.3) 48%, rgba(160, 107, 255, 0.18) 100%);
}

.page-contact .ct-banner figcaption {
  position: absolute;
  left: var(--gutter);
  right: var(--gutter);
  bottom: clamp(16px, 3vw, 34px);
  z-index: 1;
  max-width: 48ch;
  font-size: 13px;
  line-height: 1.7;
  color: var(--paper);
}

/* ---------- 邮箱与电话 ---------- */
.page-contact .ct-lines__grid {
  display: grid;
  gap: var(--ct-gap);
}

.page-contact .ct-line {
  display: grid;
  gap: 12px;
  align-content: start;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: var(--ct-pad);
  background: linear-gradient(150deg, rgba(14, 26, 43, 0.86), rgba(7, 8, 13, 0.92));
  transition: border-color 220ms var(--ease);
}

.page-contact .ct-line--mail {
  border-top: 2px solid var(--violet);
}

.page-contact .ct-line--phone {
  border-top: 2px solid var(--cyan);
}

.page-contact .ct-line:hover {
  border-color: var(--violet);
}

.page-contact .ct-line--phone:hover {
  border-color: var(--cyan);
}

.page-contact .ct-line__label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.page-contact .ct-line__value {
  margin: 0;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(20px, 3.4vw, 30px);
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--paper);
  word-break: break-all;
  user-select: all;
}

.page-contact .ct-line--phone .ct-line__value {
  font-size: clamp(26px, 4vw, 38px);
}

.page-contact .ct-line__body {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
}

.page-contact .ct-line__hint {
  margin: 0;
  font-size: 12px;
  color: var(--clay);
}

/* ---------- 办公地址 ---------- */
.page-contact .ct-visit__grid {
  display: grid;
  gap: clamp(24px, 4vw, 48px);
  align-items: center;
}

.page-contact .ct-visit__addr {
  margin: 20px 0 0;
  padding-left: 18px;
  border-left: 3px solid var(--clay);
  font-family: var(--font-mono);
  font-size: clamp(16px, 2.2vw, 21px);
  line-height: 1.65;
  color: var(--paper);
  user-select: all;
}

.page-contact .ct-visit .yb-lede {
  margin: 20px 0 0;
}

.page-contact .ct-visit .yb-note {
  margin: 14px 0 0;
}

.page-contact .ct-visit__map {
  transform-origin: center center;
  transition: transform 320ms var(--ease);
}

.page-contact .ct-visit__map:hover {
  transform: scale(1.04);
}

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

.page-contact .ct-map__line {
  fill: none;
  stroke: var(--line);
  stroke-width: 1.4;
}

.page-contact .ct-map__dot {
  fill: var(--magenta);
}

.page-contact .ct-map__ring {
  fill: none;
  stroke: var(--magenta);
  stroke-width: 1.2;
  opacity: 0.5;
}

/* ---------- 反馈模板 ---------- */
.page-contact .ct-template__grid {
  display: grid;
  gap: clamp(24px, 4vw, 56px);
}

.page-contact .ct-template__lead .yb-h2 {
  margin-bottom: 14px;
}

.page-contact .ct-template__lead p {
  margin: 0;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.8;
  max-width: 52ch;
}

.page-contact .ct-template__fig {
  margin: 26px 0 0;
}

.page-contact .ct-template__fig img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--r-sm);
  filter: saturate(0.65) brightness(0.86);
}

.page-contact .ct-template__fig .yb-media__cap {
  display: block;
  margin-top: 10px;
}

.page-contact .ct-template__sheet {
  border: 1px dashed rgba(242, 239, 230, 0.3);
  border-radius: var(--r-sm);
  padding: clamp(20px, 3vw, 30px);
  background:
    repeating-linear-gradient(180deg, rgba(242, 239, 230, 0.045) 0 1px, transparent 1px 34px),
    rgba(242, 239, 230, 0.025);
}

.page-contact .ct-template__sheet-title {
  margin: 0 0 16px;
  font-family: var(--font-serif);
  font-size: 14px;
  letter-spacing: 0.1em;
  color: var(--clay);
}

.page-contact .ct-template__body {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 2.1;
  color: var(--paper);
  white-space: pre-wrap;
  word-break: break-word;
  user-select: all;
}

.page-contact .ct-template__sheet .yb-note {
  margin: 18px 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--line);
}

/* ---------- 合作与授权 ---------- */
.page-contact .ct-coop__grid {
  display: grid;
  gap: clamp(24px, 4vw, 48px);
}

.page-contact .ct-coop__text .yb-h2 {
  margin-bottom: 14px;
}

.page-contact .ct-coop__text .yb-lede {
  margin: 0;
  max-width: 58ch;
}

.page-contact .ct-coop__note {
  margin: 18px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--clay);
  max-width: 58ch;
}

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

.page-contact .ct-coop__list li {
  display: grid;
  grid-template-columns: 20px minmax(0, 1fr);
  gap: 12px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
  font-size: 15px;
  line-height: 1.7;
  color: var(--paper);
}

.page-contact .ct-coop__list li::before {
  content: "—";
  font-family: var(--font-mono);
  color: var(--clay);
}

/* ---------- 响应式 ---------- */
@media (min-width: 880px) {
  .page-contact .ct-intro {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: end;
  }

  .page-contact .ct-pick {
    grid-template-columns: minmax(240px, 4fr) minmax(0, 8fr);
  }

  .page-contact .ct-pick__list {
    border-bottom: 0;
    border-right: 1px solid var(--line);
  }

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

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

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

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

@media (max-width: 520px) {
  .page-contact .ct-pick__tab {
    padding: 16px 18px 16px 22px;
  }

  .page-contact .ct-line__value {
    font-size: 17px;
  }

  .page-contact .ct-line--phone .ct-line__value {
    font-size: 24px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .ct-pick__tab,
  .page-contact .ct-pick__tab::before,
  .page-contact .ct-line,
  .page-contact .ct-visit__map {
    transition: none;
  }

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