.page-contact {
  --ct-ink-mute: #46615A;
  --ct-line-dark: rgba(6, 35, 28, .16);
}

/* ============ 首屏 ============ */
.page-contact .ct-hero {
  position: relative;
  padding-block: clamp(1.25rem, 4vw, 2.5rem) clamp(2.25rem, 7vw, 4rem);
  background:
    radial-gradient(140% 100% at 92% -10%, rgba(63, 224, 196, .13), transparent 62%),
    radial-gradient(120% 90% at -5% 115%, rgba(255, 122, 51, .10), transparent 58%),
    var(--night);
}

.page-contact .ct-hero__crumbs {
  margin-bottom: clamp(1.25rem, 4vw, 2.25rem);
}

.page-contact .ct-hero__eyebrow {
  margin: 0 0 .85rem;
  color: var(--neon);
}

.page-contact .ct-hero__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2.4rem, 12vw, 6.25rem);
  line-height: .98;
  letter-spacing: -.035em;
  color: var(--ivory);
}

.page-contact .ct-hero__lead {
  margin: clamp(1rem, 3.5vw, 1.6rem) 0 0;
  max-width: 56ch;
  color: var(--mist);
  font-size: clamp(1rem, 2.4vw, 1.1rem);
  line-height: 1.85;
}

.page-contact .ct-jump {
  list-style: none;
  margin: clamp(1.5rem, 5vw, 2.25rem) 0 0;
  padding: clamp(1rem, 3vw, 1.35rem) 0 0;
  border-top: 1px solid var(--hairline);
  display: flex;
  flex-wrap: wrap;
  gap: .5rem .6rem;
}

.page-contact .ct-jump a {
  display: inline-block;
  padding: .42rem .9rem;
  border: 1px solid var(--neon-edge);
  border-radius: 999px;
  color: var(--neon);
  font-size: .875rem;
  line-height: 1.45;
  text-decoration: none;
  transition: background-color .16s var(--ease), color .16s var(--ease);
}

.page-contact .ct-jump a:hover,
.page-contact .ct-jump a:focus-visible {
  background: var(--neon);
  color: var(--night);
}

/* ============ 通用章节 ============ */
.page-contact .ct-section {
  padding-block: clamp(2.5rem, 8vw, 5rem);
}

.page-contact .ct-head {
  max-width: 50ch;
  margin-bottom: clamp(1.5rem, 4.5vw, 2.5rem);
}

.page-contact .ct-tip {
  margin: clamp(1.5rem, 4vw, 2rem) 0 0;
  padding: .85rem 0 .85rem 1.05rem;
  border-left: 2px solid var(--signal);
  color: var(--ivory);
  font-size: .9375rem;
  line-height: 1.8;
}

/* ============ 01 联系方式 ============ */
.page-contact .ct-channels {
  display: grid;
  gap: 1.35rem;
}

.page-contact .ct-channel {
  padding-top: 1.05rem;
  border-top: 1px solid var(--neon-edge);
}

.page-contact .ct-channel__kind {
  margin: 0;
  font-size: .8125rem;
  letter-spacing: .09em;
  color: var(--mist);
}

.page-contact .ct-channel__value {
  margin: .5rem 0 .75rem;
  font-family: var(--font-num);
  font-size: clamp(1.0625rem, 4.2vw, 1.4rem);
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: .01em;
  color: var(--neon);
  overflow-wrap: anywhere;
}

.page-contact .ct-channel__value--tel {
  color: var(--signal);
  letter-spacing: .05em;
}

.page-contact .ct-channel__note {
  margin: 0;
  color: var(--mist);
  font-size: .9375rem;
  line-height: 1.8;
}

.page-contact .ct-reach-media {
  margin: clamp(1.75rem, 5vw, 2.5rem) auto 0;
  max-width: min(30rem, 100%);
}

.page-contact .ct-reach-media img,
.page-contact .ct-rhythm__media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: var(--radius);
  border: 1px solid var(--hairline);
}

/* ============ 02 订阅问题 ============ */
.page-contact .ct-split {
  display: grid;
  gap: clamp(1.5rem, 5vw, 2.25rem);
}

.page-contact .ct-steps {
  counter-reset: ct-step;
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: clamp(1rem, 3vw, 1.4rem);
}

.page-contact .ct-steps > li {
  counter-increment: ct-step;
  position: relative;
  padding-left: 3.25rem;
}

.page-contact .ct-steps > li::before {
  content: counter(ct-step, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: .12em;
  font-family: var(--font-num);
  font-size: 1.0625rem;
  font-weight: 700;
  letter-spacing: .03em;
  color: var(--signal);
}

.page-contact .ct-steps__title {
  margin: 0 0 .3rem;
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--ivory);
}

.page-contact .ct-steps p {
  margin: 0;
  color: var(--mist);
  font-size: .9375rem;
  line-height: 1.8;
}

.page-contact .ct-aside {
  align-self: start;
  padding: 1.25rem 1.35rem 1.5rem;
  border: 1px solid var(--hairline);
  border-top: 3px solid var(--neon);
  border-radius: var(--radius);
  background: rgba(14, 63, 49, .55);
}

.page-contact .ct-aside .eyebrow {
  color: var(--neon);
}

.page-contact .ct-aside__body {
  margin: .8rem 0 0;
  color: var(--mist);
  font-size: .9375rem;
  line-height: 1.8;
}

/* ============ 03 处理顺序 ============ */
.page-contact .ct-flow {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1rem;
}

.page-contact .ct-flow > li {
  display: grid;
  grid-template-columns: 1.75rem minmax(0, 1fr);
  gap: 1rem;
  align-items: start;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--hairline);
}

.page-contact .ct-flow__num {
  padding-top: .1em;
  font-family: var(--font-num);
  font-size: .9375rem;
  font-weight: 700;
  letter-spacing: .05em;
  color: var(--neon);
}

.page-contact .ct-flow h3 {
  margin: 0 0 .3rem;
  font-size: 1rem;
  font-weight: 700;
  color: var(--ivory);
}

.page-contact .ct-flow p {
  margin: 0;
  color: var(--mist);
  font-size: .9375rem;
  line-height: 1.8;
}

.page-contact .ct-rhythm__media {
  margin: clamp(1.75rem, 5vw, 2.75rem) 0 0;
}

/* ============ 04 合作方向 ============ */
.page-contact .ct-accordions {
  border-top: 1px solid var(--hairline);
}

.page-contact .ct-accordions .accordion {
  border: 0;
  border-bottom: 1px solid var(--hairline);
  border-radius: 0;
  background: transparent;
  padding: 0;
}

.page-contact .ct-accordions .accordion > summary {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.1rem 0;
  cursor: pointer;
  list-style: none;
  font-size: clamp(1rem, 3.4vw, 1.125rem);
  font-weight: 700;
  color: var(--ivory);
}

.page-contact .ct-accordions .accordion > summary::-webkit-details-marker {
  display: none;
}

.page-contact .ct-accordions .accordion > summary::after {
  content: "+";
  flex: none;
  font-family: var(--font-num);
  font-size: 1.1875rem;
  line-height: 1;
  color: var(--neon);
}

.page-contact .ct-accordions .accordion[open] > summary::after {
  content: "−";
}

.page-contact .ct-accordions .accordion__panel {
  padding: 0 0 1.35rem;
  font-size: .9375rem;
  line-height: 1.85;
  color: var(--mist);
}

.page-contact .ct-accordions .accordion__panel p {
  margin: 0;
  max-width: 62ch;
}

/* ============ 05 象牙白分区 ============ */
.page-contact .ct-ivory {
  background: var(--ivory);
  color: var(--ink-on-light);
}

.page-contact .ct-ivory .section__title,
.page-contact .ct-ivory .section__lead {
  color: var(--ink-on-light);
}

.page-contact .ct-ivory .section__lead {
  color: var(--ct-ink-mute);
}

.page-contact .ct-ivory__grid {
  display: grid;
  gap: clamp(1.75rem, 5vw, 2.75rem);
}

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

.page-contact .ct-links li {
  border-bottom: 1px solid var(--ct-line-dark);
}

.page-contact .ct-links a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 0;
  color: var(--ink-on-light);
  font-weight: 700;
  text-decoration: none;
  transition: color .16s var(--ease), padding-left .16s var(--ease);
}

.page-contact .ct-links a::after {
  content: "→";
  flex: none;
  font-family: var(--font-num);
  color: #1E6B55;
}

.page-contact .ct-links a:hover,
.page-contact .ct-links a:focus-visible {
  color: #0F5B47;
  padding-left: .35rem;
}

.page-contact .ct-office {
  display: grid;
  gap: 1.35rem;
  padding: clamp(1.15rem, 3.5vw, 1.65rem);
  border: 1px solid var(--ct-line-dark);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, .6);
  box-shadow: var(--shadow-sm);
}

.page-contact .ct-office__row {
  display: grid;
  grid-template-columns: 1.5rem minmax(0, 1fr);
  gap: .85rem;
  align-items: start;
}

.page-contact .ct-pin {
  margin-top: .18rem;
  color: #1E6B55;
}

.page-contact .ct-office__label {
  margin: 0 0 .3rem;
  font-size: .75rem;
  letter-spacing: .1em;
  color: var(--ct-ink-mute);
}

.page-contact .ct-office__value {
  margin: 0;
  font-size: 1.0625rem;
  font-weight: 700;
  line-height: 1.65;
  color: var(--ink-on-light);
}

.page-contact .ct-office__hint {
  margin: .4rem 0 0;
  font-size: .875rem;
  line-height: 1.7;
  color: var(--ct-ink-mute);
}

.page-contact .ct-office__legal {
  margin: 0;
  padding-top: 1.1rem;
  border-top: 1px dashed var(--ct-line-dark);
  font-family: var(--font-num);
  font-size: .8125rem;
  letter-spacing: .05em;
  color: var(--ct-ink-mute);
}

/* ============ 焦点与响应式 ============ */
.page-contact a:focus-visible,
.page-contact summary:focus-visible {
  outline: 2px solid var(--neon);
  outline-offset: 3px;
  border-radius: var(--radius);
}

.page-contact .ct-ivory a:focus-visible {
  outline-color: var(--pitch);
}

@media (min-width: 760px) {
  .page-contact .ct-channels {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1.5rem;
  }
}

@media (min-width: 900px) {
  .page-contact .ct-ivory__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
    column-gap: clamp(2rem, 5vw, 4rem);
    align-items: start;
  }
}

@media (min-width: 960px) {
  .page-contact .ct-split {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    column-gap: clamp(2rem, 5vw, 3.5rem);
  }
}

@media (max-width: 420px) {
  .page-contact .ct-steps > li {
    padding-left: 2.75rem;
  }

  .page-contact .ct-flow > li {
    grid-template-columns: 1.5rem minmax(0, 1fr);
    gap: .75rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact * {
    transition-duration: .001ms !important;
    animation-duration: .001ms !important;
  }
}