.page-contact {
  --contact-gap: clamp(16px, 3vw, 30px);
  --contact-border: 3px;
  position: relative;
  padding-bottom: clamp(56px, 9vw, 120px);
}

/* ---------- 面包屑 ---------- */
.page-contact .breadcrumb {
  padding-top: clamp(18px, 3vw, 30px);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
}

.page-contact .breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-contact .breadcrumb__link {
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.18s ease, border-color 0.18s ease;
}

.page-contact .breadcrumb__link:hover,
.page-contact .breadcrumb__link:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
  outline: none;
}

.page-contact .breadcrumb__item + .breadcrumb__item::before {
  content: "/";
  margin: 0 8px;
  color: var(--slate);
}

.page-contact .breadcrumb__current {
  color: var(--cyan);
}

/* ---------- 海报首屏 ---------- */
.page-contact .poster {
  position: relative;
  overflow: hidden;
  padding: clamp(24px, 4.5vw, 52px) 0 clamp(32px, 6vw, 68px);
  border-bottom: 1px solid var(--line);
}

.page-contact .poster::after {
  content: "";
  position: absolute;
  top: -34%;
  right: -14%;
  width: min(640px, 78vw);
  height: min(640px, 78vw);
  background: radial-gradient(circle at 50% 50%, rgba(123, 59, 255, 0.38), transparent 68%);
  pointer-events: none;
}

.page-contact .poster .container {
  position: relative;
  z-index: 1;
}

.page-contact .poster__kicker {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-contact .poster__title {
  margin: 16px 0 0;
  font-family: var(--font-poster);
  font-weight: 900;
  font-size: clamp(32px, 6.2vw, 74px);
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--offwhite);
  text-shadow: 0 0 30px rgba(123, 59, 255, 0.5);
}

.page-contact .poster__title em {
  font-style: normal;
  color: var(--cyan);
  text-shadow: var(--glow-cyan);
}

.page-contact .poster__lead {
  margin: 22px 0 0;
  max-width: 64ch;
  font-size: clamp(15px, 1.8vw, 17px);
  line-height: 1.8;
  color: var(--mist);
}

.page-contact .poster__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 26px;
}

/* ---------- 章节骨架 ---------- */
.page-contact .section {
  padding-top: clamp(44px, 7vw, 84px);
}

.page-contact .section__head {
  display: grid;
  gap: 12px;
  max-width: 800px;
  margin-bottom: var(--contact-gap);
}

.page-contact .section__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--magenta);
}

.page-contact .section__title {
  margin: 0;
  padding-left: 16px;
  border-left: 4px solid var(--cyan);
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(24px, 3.6vw, 42px);
  line-height: 1.22;
  color: var(--offwhite);
}

.page-contact .section__lead {
  margin: 0;
  max-width: 64ch;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--mist);
}

.page-contact .pulse-divider {
  margin: clamp(38px, 6vw, 68px) 0 0;
  height: 2px;
  background: repeating-linear-gradient(
    90deg,
    var(--magenta) 0 10px,
    transparent 10px 20px
  );
  opacity: 0.55;
}

/* ---------- 联系氛围图 ---------- */
.page-contact .contact-visual {
  margin: 0 0 var(--contact-gap);
  border: 2px solid var(--line);
  overflow: hidden;
  background: var(--void);
}

.page-contact .contact-visual img {
  display: block;
  width: 100%;
  height: clamp(150px, 24vw, 280px);
  object-fit: cover;
}

.page-contact .contact-visual figcaption {
  padding: 12px 16px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--slate);
  border-top: 1px solid var(--line);
}

/* ---------- 联系卡片组 ---------- */
.page-contact .contact-deck {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--contact-gap);
}

.page-contact .contact-card {
  --card-shift: 0px;
  --card-tilt: 0deg;
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: clamp(22px, 4vw, 34px);
  background: linear-gradient(165deg, rgba(26, 16, 53, 0.96), rgba(11, 6, 32, 0.96));
  border: var(--contact-border) solid var(--violet);
  box-shadow: var(--hard-shadow);
  transform: translateY(var(--card-shift)) rotate(var(--card-tilt));
  transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}

.page-contact .contact-card::before {
  content: "";
  position: absolute;
  top: calc(var(--contact-border) * -1);
  left: calc(var(--contact-border) * -1);
  width: 76px;
  height: 8px;
  background: var(--cyan);
}

.page-contact .contact-card:nth-child(2)::before {
  background: var(--magenta);
}

.page-contact .contact-card:nth-child(3)::before {
  background: var(--yellow);
}

.page-contact .contact-card__label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--mist);
}

.page-contact .contact-card__value {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(16px, 2.3vw, 24px);
  font-weight: 700;
  line-height: 1.35;
  color: var(--offwhite);
  overflow-wrap: anywhere;
  text-shadow: 0 0 18px rgba(34, 224, 255, 0.25);
}

.page-contact .contact-card__copy {
  align-self: flex-start;
  margin-top: 2px;
  padding: 10px 18px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--indigo);
  background: var(--cyan);
  border: 2px solid var(--cyan);
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease, box-shadow 0.2s ease;
}

.page-contact .contact-card__copy:hover,
.page-contact .contact-card__copy:focus-visible {
  background: transparent;
  color: var(--cyan);
  box-shadow: var(--glow-cyan);
  outline: none;
}

.page-contact .contact-card__copy.is-copied {
  background: var(--yellow);
  border-color: var(--yellow);
  color: var(--void);
}

.page-contact .contact-card__note {
  margin: 0;
  font-size: 14px;
  line-height: 1.78;
  color: var(--mist);
}

/* ---------- 回复安排 ---------- */
.page-contact .reply-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--contact-gap);
}

.page-contact .reply-item {
  padding: 22px 20px 24px;
  background: rgba(26, 16, 53, 0.6);
  border-left: 3px solid var(--cyan);
}

.page-contact .reply-item__title {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--offwhite);
}

.page-contact .reply-item__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--mist);
}

.page-contact .note {
  margin-top: var(--contact-gap);
  padding: 16px 20px;
  border-left: 4px solid var(--yellow);
  background: rgba(255, 228, 77, 0.08);
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--offwhite);
}

/* ---------- 准备清单 ---------- */
.page-contact .prep {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--contact-gap);
}

.page-contact .prep-figure {
  margin: 0;
  border: 2px solid var(--line);
  background: var(--void);
  overflow: hidden;
}

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

.page-contact .prep-figure figcaption {
  padding: 12px 16px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  line-height: 1.7;
  color: var(--slate);
  border-top: 1px solid var(--line);
}

.page-contact .prep-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-contact .prep-list li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  padding: 16px 18px;
  background: rgba(11, 6, 32, 0.72);
  border: 1px solid var(--line);
  border-left: 3px solid var(--magenta);
}

.page-contact .prep-list__num {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--cyan);
  padding-top: 3px;
}

.page-contact .prep-list__title {
  margin: 0 0 6px;
  font-family: var(--font-body);
  font-size: 15.5px;
  font-weight: 700;
  color: var(--offwhite);
}

.page-contact .prep-list__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.78;
  color: var(--mist);
}

/* ---------- 咨询类型入口 ---------- */
.page-contact .ask-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--contact-gap);
}

.page-contact .ask-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 22px 20px 24px;
  background: linear-gradient(180deg, rgba(26, 16, 53, 0.9), rgba(5, 3, 15, 0.92));
  border: 2px solid var(--line);
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.page-contact .ask-card__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--violet);
}

.page-contact .ask-card__title {
  margin: 0;
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 700;
  line-height: 1.45;
  color: var(--offwhite);
}

.page-contact .ask-card__body {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.78;
  color: var(--mist);
}

.page-contact .ask-card__link {
  align-self: flex-start;
  margin-top: auto;
  padding-bottom: 2px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(34, 224, 255, 0.5);
  transition: color 0.18s ease, border-color 0.18s ease;
}

.page-contact .ask-card__link:hover,
.page-contact .ask-card__link:focus-visible {
  color: var(--yellow);
  border-bottom-color: var(--yellow);
  outline: none;
}

.page-contact .ask-foot {
  margin: var(--contact-gap) 0 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--mist);
}

.page-contact .ask-foot a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(34, 224, 255, 0.5);
}

.page-contact .ask-foot a:hover,
.page-contact .ask-foot a:focus-visible {
  color: var(--yellow);
  border-bottom-color: var(--yellow);
  outline: none;
}

/* ---------- 站点信息 ---------- */
.page-contact .siteinfo-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--line);
  border: 2px solid var(--line);
}

.page-contact .siteinfo-block {
  padding: 22px 20px;
  background: var(--indigo);
}

.page-contact .siteinfo-block__label {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--mist);
}

.page-contact .siteinfo-block__value {
  margin: 12px 0 0;
  font-size: clamp(15px, 1.9vw, 18px);
  font-weight: 700;
  line-height: 1.62;
  color: var(--offwhite);
  overflow-wrap: anywhere;
}

.page-contact .siteinfo-block__hint {
  margin: 8px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--slate);
}

.page-contact .icp-strip {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px 18px;
  margin-top: var(--contact-gap);
  padding: 18px 22px;
  background: linear-gradient(90deg, rgba(123, 59, 255, 0.9), rgba(123, 59, 255, 0.32));
  border: 2px solid var(--violet);
}

.page-contact .icp-strip__label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--mist);
}

.page-contact .icp-strip__value {
  font-family: var(--font-mono);
  font-size: clamp(15px, 2vw, 20px);
  font-weight: 700;
  color: var(--offwhite);
}

.page-contact .fold {
  margin-top: var(--contact-gap);
  background: rgba(11, 6, 32, 0.7);
  border: 1px solid var(--line);
}

.page-contact .fold > .fold__summary {
  display: block;
  padding: 16px 20px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--cyan);
  cursor: pointer;
  list-style: none;
}

.page-contact .fold > .fold__summary::-webkit-details-marker {
  display: none;
}

.page-contact .fold > .fold__summary::after {
  content: "+";
  float: right;
  margin-left: 12px;
  color: var(--magenta);
}

.page-contact .fold[open] > .fold__summary::after {
  content: "–";
}

.page-contact .fold > .fold__summary:hover,
.page-contact .fold > .fold__summary:focus-visible {
  color: var(--yellow);
  outline: none;
}

.page-contact .fold > .fold__body {
  padding: 0 20px 20px;
  font-size: 14.5px;
  line-height: 1.82;
  color: var(--mist);
}

.page-contact .fold > .fold__body p {
  margin: 0;
}

/* ---------- 响应式 ---------- */
@media (min-width: 700px) {
  .page-contact .ask-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

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

@media (min-width: 900px) {
  .page-contact .prep {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
    align-items: start;
  }

  .page-contact .prep-figure {
    position: sticky;
    top: calc(var(--header-h) + 24px);
  }
}

@media (min-width: 1000px) {
  .page-contact .contact-deck {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    align-items: start;
    padding-bottom: 40px;
  }

  .page-contact .contact-card:nth-child(1) {
    --card-shift: 0px;
    --card-tilt: -1.1deg;
  }

  .page-contact .contact-card:nth-child(2) {
    --card-shift: 34px;
    --card-tilt: 0.7deg;
  }

  .page-contact .contact-card:nth-child(3) {
    --card-shift: -12px;
    --card-tilt: -0.7deg;
  }
}

@media (min-width: 1100px) {
  .page-contact .ask-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (hover: hover) and (pointer: fine) {
  .page-contact .contact-card:hover {
    border-color: var(--cyan);
    box-shadow: 12px 12px 0 rgba(5, 3, 15, 0.8), 0 0 26px rgba(34, 224, 255, 0.2);
  }

  .page-contact .contact-card:nth-child(1):hover {
    --card-shift: -6px;
  }

  .page-contact .contact-card:nth-child(2):hover {
    --card-shift: 26px;
  }

  .page-contact .contact-card:nth-child(3):hover {
    --card-shift: -18px;
  }

  .page-contact .ask-card:hover {
    transform: translateY(-4px);
    border-color: var(--magenta);
    box-shadow: 0 0 24px rgba(255, 46, 154, 0.18);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .contact-card,
  .page-contact .ask-card,
  .page-contact .contact-card__copy,
  .page-contact .ask-card__link,
  .page-contact .breadcrumb__link {
    transition: none;
  }
}
</main>