.page-contact {
  --pc-line: rgba(201, 162, 39, 0.26);
  --pc-hair: rgba(154, 147, 168, 0.14);
  --pc-card: rgba(26, 14, 42, 0.78);
  background: var(--c-ink);
  color: var(--c-mute);
  font-family: var(--font-body);
  overflow-x: clip;
}

.page-contact .breadcrumb {
  padding-block: clamp(1.25rem, 3vw, 2rem) 0;
  font-size: 0.8125rem;
  letter-spacing: 0.04em;
  color: var(--c-mute);
}

.page-contact .breadcrumb a {
  color: var(--c-ice);
  text-decoration: none;
}

.page-contact .breadcrumb span {
  margin-inline: 0.45rem;
}

.page-contact h1,
.page-contact h2,
.page-contact h3 {
  font-family: var(--font-display);
  color: var(--c-cream);
  line-height: 1.18;
  margin: 0;
}

.page-contact h1 {
  font-size: clamp(2.1rem, 6vw, 3.6rem);
  letter-spacing: -0.01em;
}

.page-contact h2 {
  font-size: clamp(1.5rem, 3.4vw, 2.1rem);
  margin-top: 0.5rem;
}

.page-contact h3 {
  font-size: 1.125rem;
}

.page-contact .section-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--c-gold);
  margin: 0 0 0.25rem;
}

.page-contact .section-head {
  max-width: 60ch;
  margin-bottom: clamp(1.5rem, 3vw, 2.25rem);
}

.page-contact .lede {
  font-size: clamp(0.95rem, 1.6vw, 1.0625rem);
  line-height: 1.8;
  color: var(--c-mute);
  margin: 0.85rem 0 0;
}

.page-contact .block {
  padding-block: clamp(2rem, 5vw, 3.25rem);
}

/* ---------- 首屏 ---------- */
.page-contact .hero {
  position: relative;
  overflow: hidden;
  padding-block: clamp(2rem, 5vw, 3.5rem) clamp(1rem, 2vw, 1.5rem);
}

.page-contact .hero::after {
  content: "";
  position: absolute;
  inset-inline: 0;
  bottom: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--pc-line) 20%, var(--pc-line) 80%, transparent);
}

.page-contact .hero__inner {
  display: grid;
  gap: clamp(1.75rem, 5vw, 3rem);
  align-items: center;
}

.page-contact .hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: clamp(1.25rem, 3vw, 1.75rem);
}

.page-contact .hero__facts {
  display: grid;
  gap: 0.9rem;
  margin: clamp(1.5rem, 3vw, 2.25rem) 0 0;
  padding-top: clamp(1.25rem, 3vw, 1.75rem);
  border-top: 1px solid var(--pc-hair);
}

.page-contact .hero__facts dt {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--c-gold);
}

.page-contact .hero__facts dd {
  margin: 0.35rem 0 0;
  font-size: 0.9375rem;
  line-height: 1.6;
  color: var(--c-cream);
}

.page-contact .hero__visual {
  position: relative;
  display: grid;
  place-items: center;
  aspect-ratio: 1 / 1;
  max-width: 420px;
  width: 100%;
  margin-inline: auto;
}

.page-contact .hero__orb {
  position: absolute;
  inset: 8%;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 30%, var(--glow-royal), transparent 62%);
  filter: blur(6px);
}

.page-contact .hero__visual svg {
  position: relative;
  width: 100%;
  height: auto;
}

.page-contact .hv-ring {
  fill: none;
  stroke: var(--c-gold);
  stroke-width: 0.9;
  opacity: 0.5;
  stroke-dasharray: 4 6;
}

.page-contact .hv-ring--inner {
  stroke: var(--c-royal);
  stroke-width: 1.4;
  opacity: 0.75;
  stroke-dasharray: none;
}

.page-contact .hv-crown {
  fill: url(#none);
  fill: var(--c-royal);
  stroke: var(--c-gold-lite);
  stroke-width: 1.6;
  stroke-linejoin: round;
}

.page-contact .hv-base {
  stroke: var(--c-gold);
  stroke-width: 2;
  fill: none;
}

.page-contact .hv-node {
  fill: var(--c-ice);
}

/* ---------- 左右交错布局 ---------- */
.page-contact .contact-layout {
  display: grid;
  gap: clamp(1.5rem, 4vw, 2.75rem);
  padding-block: clamp(1rem, 2vw, 1.5rem);
}

.page-contact .contact-main {
  min-width: 0;
}

/* ---------- 通道列表 ---------- */
.page-contact .media-frame {
  margin: 0 0 clamp(1.75rem, 4vw, 2.5rem);
  border: 1px solid var(--pc-line);
  background: var(--c-night);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 20px), calc(100% - 20px) 100%, 0 100%);
}

.page-contact .channel-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--pc-hair);
  border-top: 1px solid var(--pc-hair);
}

.page-contact .channel {
  position: relative;
  padding: clamp(1.5rem, 3vw, 2.25rem) clamp(1.25rem, 3vw, 2rem) clamp(1.5rem, 3vw, 2.25rem) clamp(3.75rem, 7vw, 4.75rem);
  background: linear-gradient(135deg, var(--c-night) 0%, var(--c-ink) 72%);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 18px), calc(100% - 18px) 100%, 0 100%);
  transition: background var(--dur) var(--ease);
}

.page-contact .channel::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--c-gold), rgba(201, 162, 39, 0.1));
  transform: scaleY(0.35);
  transform-origin: top;
  transition: transform 0.32s var(--ease);
}

.page-contact .channel:hover::before,
.page-contact .channel:focus-within::before {
  transform: scaleY(1);
}

.page-contact .channel:hover {
  background: linear-gradient(135deg, var(--c-royal-deep) -10%, var(--c-ink) 68%);
}

.page-contact .channel__seal {
  position: absolute;
  left: clamp(0.9rem, 2.4vw, 1.5rem);
  top: clamp(1.5rem, 3vw, 2.25rem);
  width: 2.25rem;
  height: 2.25rem;
  display: grid;
  place-items: center;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--c-gold-lite);
  background: var(--c-wine);
  border: 1px solid rgba(233, 206, 107, 0.45);
  letter-spacing: 0.04em;
}

.page-contact .channel__title {
  margin-bottom: 0.6rem;
}

.page-contact .channel__for {
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--c-ice);
  margin: 0 0 0.85rem;
}

.page-contact .channel p {
  font-size: 0.9375rem;
  line-height: 1.8;
  margin: 0 0 0.75rem;
}

.page-contact .channel__next {
  margin: 0;
  padding-left: 1rem;
  border-left: 1px solid var(--pc-line);
  color: var(--c-cream);
  font-size: 0.875rem !important;
}

/* ---------- 联系信息卡 ---------- */
.page-contact .contact-card {
  position: relative;
  overflow: hidden;
  padding: 1px;
  background: linear-gradient(155deg, var(--c-gold) 0%, rgba(201, 162, 39, 0.08) 46%, rgba(91, 42, 134, 0.6) 100%);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 22px), calc(100% - 22px) 100%, 0 100%);
}

.page-contact .contact-card__texture {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.22;
  pointer-events: none;
}

.page-contact .contact-card__body {
  position: relative;
  padding: clamp(1.5rem, 4vw, 2rem);
  background: linear-gradient(160deg, rgba(58, 26, 94, 0.94), rgba(14, 14, 18, 0.97));
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 21px), calc(100% - 21px) 100%, 0 100%);
}

.page-contact .contact-card__body h2 {
  font-size: clamp(1.35rem, 3vw, 1.7rem);
  margin-bottom: 1.25rem;
}

.page-contact .contact-fields {
  margin: 0;
  display: grid;
  gap: 1px;
  background: var(--pc-hair);
}

.page-contact .contact-field {
  padding: 0.9rem 0.25rem;
  background: rgba(14, 14, 18, 0.55);
}

.page-contact .contact-field dt {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--c-gold);
}

.page-contact .contact-field dd {
  margin: 0.45rem 0 0;
  font-family: var(--font-mono);
  font-size: 0.9375rem;
  line-height: 1.6;
  color: var(--c-cream);
  word-break: break-word;
}

.page-contact .contact-card__note {
  margin: 1.25rem 0 0;
  padding-top: 1.1rem;
  border-top: 1px solid var(--pc-line);
  font-size: 0.8125rem;
  line-height: 1.75;
  color: var(--c-mute);
}

/* ---------- 流程条 ---------- */
.page-contact .band {
  position: relative;
  border-top: 1px solid var(--pc-hair);
  border-bottom: 1px solid var(--pc-hair);
}

.page-contact .band--process {
  background:
    linear-gradient(180deg, rgba(58, 26, 94, 0.35), rgba(14, 14, 18, 0) 62%),
    var(--c-ink);
  padding-block: clamp(2.5rem, 6vw, 4rem);
}

.page-contact .process-track {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1.75rem;
}

.page-contact .process-step {
  position: relative;
  padding-left: 2.25rem;
}

.page-contact .process-step__dot {
  position: absolute;
  left: 0;
  top: 0.35rem;
  width: 0.75rem;
  height: 0.75rem;
  border-radius: 50%;
  background: var(--c-ice);
  box-shadow: 0 0 0 4px rgba(126, 200, 227, 0.14);
}

.page-contact .process-step__idx {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.2em;
  color: var(--c-wine);
  filter: brightness(1.9);
}

.page-contact .process-step__title {
  margin: 0.4rem 0 0.6rem;
}

.page-contact .process-step__detail {
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.8;
  color: var(--c-mute);
  opacity: 0.78;
  transform: translateY(4px);
  transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-contact .process-step:hover .process-step__detail,
.page-contact .process-step:focus-within .process-step__detail {
  opacity: 1;
  transform: translateY(0);
}

.page-contact .process-note {
  margin: clamp(1.75rem, 4vw, 2.5rem) 0 0;
  padding-top: 1.1rem;
  border-top: 1px dashed var(--pc-line);
  font-size: 0.8125rem;
  line-height: 1.8;
  color: var(--c-mute);
}

/* ---------- 准备清单 ---------- */
.page-contact .checklist-block {
  padding-block: clamp(2.5rem, 6vw, 4rem);
}

.page-contact .checklist {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.75rem;
}

.page-contact .checklist__item {
  display: grid;
  grid-template-columns: 1.5rem 1fr;
  gap: 0.85rem;
  align-items: start;
  padding: 1rem 1.1rem;
  background: var(--pc-card);
  border-left: 2px solid var(--c-gold);
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--c-cream);
}

.page-contact .checklist__item::before {
  content: "";
  width: 1rem;
  height: 1rem;
  margin-top: 0.3rem;
  border: 1px solid var(--c-gold);
  background:
    linear-gradient(135deg, transparent 40%, var(--c-gold-lite) 40%, var(--c-gold-lite) 52%, transparent 52%),
    linear-gradient(45deg, transparent 62%, var(--c-ice) 62%, var(--c-ice) 72%, transparent 72%);
}

/* ---------- 人工协助 ---------- */
.page-contact .band--device {
  background: linear-gradient(200deg, rgba(26, 14, 42, 0.9), var(--c-ink) 70%);
  padding-block: clamp(2.5rem, 6vw, 4rem);
}

.page-contact .device-grid {
  display: grid;
  gap: 1px;
  background: var(--pc-hair);
  border: 1px solid var(--pc-line);
}

.page-contact .device-card {
  padding: clamp(1.25rem, 3vw, 1.75rem);
  background: rgba(14, 14, 18, 0.72);
}

.page-contact .device-card__label {
  margin: 0 0 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.16em;
  color: var(--c-gold-lite);
}

.page-contact .device-card__text {
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.8;
}

.page-contact .device-help__foot {
  margin: clamp(1.5rem, 3vw, 2rem) 0 0;
  font-size: 0.9375rem;
  line-height: 1.85;
  color: var(--c-mute);
}

.page-contact .device-help__foot a {
  color: var(--c-ice);
  text-decoration: none;
  border-bottom: 1px solid rgba(126, 200, 227, 0.4);
}

.page-contact .device-help__foot a:hover {
  border-bottom-color: var(--c-ice);
}

/* ---------- 收束 ---------- */
.page-contact .closing {
  padding-block: clamp(2.5rem, 6vw, 4rem) clamp(3rem, 7vw, 5rem);
  border-top: 1px solid var(--pc-line);
  background: linear-gradient(180deg, rgba(91, 42, 134, 0.28), transparent 72%);
}

.page-contact .closing__links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.75rem;
  margin-top: clamp(1.25rem, 3vw, 1.75rem);
}

.page-contact .closing__links a {
  font-family: var(--font-display);
  font-size: clamp(1.0625rem, 2.4vw, 1.35rem);
  color: var(--c-cream);
  text-decoration: none;
  padding-bottom: 0.25rem;
  border-bottom: 1px solid var(--pc-line);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-contact .closing__links a:hover {
  color: var(--c-gold-lite);
  border-bottom-color: var(--c-gold-lite);
}

/* ---------- 窄屏到宽屏 ---------- */
@media (max-width: 599px) {
  .page-contact .channel {
    padding-left: 3.5rem;
  }

  .page-contact .channel__seal {
    left: 0.85rem;
    width: 2rem;
    height: 2rem;
    font-size: 0.75rem;
  }

  .page-contact .hero__visual {
    max-width: 280px;
  }
}

@media (min-width: 760px) {
  .page-contact .hero__facts {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-contact .checklist {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1rem 1.25rem;
  }

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

@media (min-width: 900px) {
  .page-contact .hero__inner {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  }

  .page-contact .process-track {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 0;
  }

  .page-contact .process-step {
    padding: 2.5rem 1.75rem 0 0;
  }

  .page-contact .process-step__dot {
    top: 0.5rem;
    left: 0;
  }

  .page-contact .process-step::after {
    content: "";
    position: absolute;
    left: 1rem;
    right: 0;
    top: 0.85rem;
    height: 1px;
    background: linear-gradient(90deg, var(--c-gold), rgba(201, 162, 39, 0.08));
  }

  .page-contact .process-step:last-child::after {
    display: none;
  }
}

@media (min-width: 1000px) {
  .page-contact .contact-layout {
    grid-template-columns: minmax(0, 1fr) minmax(320px, 400px);
    align-items: start;
  }

  .page-contact .contact-aside {
    position: sticky;
    top: 6.5rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .channel,
  .page-contact .channel::before,
  .page-contact .process-step__detail,
  .page-contact .closing__links a {
    transition: none;
  }

  .page-contact .process-step__detail {
    transform: none;
    opacity: 1;
  }
}