.page-contact {
  --pc-panel: rgba(17, 30, 56, .78);
  --pc-hair: rgba(34, 49, 79, .9);
  --pc-hair-soft: rgba(34, 49, 79, .55);
  --pc-paper-shadow: 7px 7px 0 rgba(5, 10, 20, .9);
  --pc-paper-shadow-hover: 10px 11px 0 rgba(5, 10, 20, .95);
  background: var(--ink-base);
  color: var(--fog);
  padding-bottom: 64px;
}

.page-contact .breadcrumbs {
  margin-top: 22px;
}

/* ---------- 首屏 ---------- */

.page-contact .contact-hero {
  position: relative;
  padding: 30px 0 12px;
  overflow: hidden;
}

.page-contact .contact-hero::before {
  content: "";
  position: absolute;
  inset: -10% -5% 0 -5%;
  background-image:
    linear-gradient(to right, rgba(34, 49, 79, .5) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(34, 49, 79, .3) 1px, transparent 1px);
  background-size: 92px 92px;
  -webkit-mask-image: radial-gradient(120% 78% at 58% 0%, #000 18%, transparent 76%);
  mask-image: radial-gradient(120% 78% at 58% 0%, #000 18%, transparent 76%);
  pointer-events: none;
}

.page-contact .contact-hero > .shell {
  position: relative;
  z-index: 1;
}

.page-contact .contact-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 34px;
  margin-top: 24px;
}

.page-contact .contact-hero__lead h1 {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2rem, 5.4vw, 3.25rem);
  line-height: 1.08;
  letter-spacing: -.018em;
  color: var(--fog);
}

.page-contact .contact-hero__intro {
  margin: 18px 0 26px;
  max-width: 36em;
  font-size: 1.0625rem;
  line-height: 1.75;
  color: var(--blue-gray);
}

.page-contact .contact-channels {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
}

.page-contact .channel-card {
  position: relative;
  background: var(--paper);
  color: var(--ink-base);
  border: 1px solid var(--ink-void);
  border-radius: var(--radius-sm);
  padding: 20px 22px 18px;
  box-shadow: var(--pc-paper-shadow);
  transition: transform .28s ease, box-shadow .28s ease;
}

.page-contact .channel-card:hover,
.page-contact .channel-card:focus-within {
  transform: translate(-2px, -4px);
  box-shadow: var(--pc-paper-shadow-hover);
}

.page-contact .channel-card__label {
  display: flex;
  align-items: center;
  gap: 9px;
  margin: 0;
  font-family: var(--font-mono);
  font-size: .75rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--orange-deep);
}

.page-contact .channel-card__label::before {
  content: "";
  width: 22px;
  height: 2px;
  background: var(--orange);
}

.page-contact .channel-card__value {
  margin: 12px 0 0;
  font-family: var(--font-mono);
  font-size: 1.0625rem;
  font-weight: 700;
  line-height: 1.5;
  letter-spacing: .01em;
  color: var(--ink-base);
  overflow-wrap: anywhere;
}

.page-contact .channel-card__note {
  margin: 9px 0 0;
  font-size: .9375rem;
  line-height: 1.65;
  color: var(--line-steel);
}

.page-contact .channel-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 15px 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .channel-card__tags li {
  padding: 3px 9px;
  border: 1px solid rgba(34, 49, 79, .42);
  border-radius: var(--radius-xs);
  background: rgba(34, 49, 79, .07);
  font-family: var(--font-mono);
  font-size: .6875rem;
  letter-spacing: .04em;
  color: var(--line-steel);
}

.page-contact .contact-hero__map {
  position: relative;
  margin: 0;
  border: 1px solid var(--pc-hair);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--ink-void);
  box-shadow: var(--shadow-panel);
}

.page-contact .contact-hero__map img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  aspect-ratio: 7 / 5;
}

.page-contact .contact-hero__map::after {
  content: "";
  position: absolute;
  top: 16px;
  right: 16px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 0 5px rgba(63, 224, 208, .16);
}

.page-contact .contact-hero__map-label {
  position: absolute;
  left: 14px;
  bottom: 14px;
}

/* ---------- 响应节奏 ---------- */

.page-contact .contact-window {
  padding-top: 64px;
}

.page-contact .contact-window__head {
  max-width: 52em;
}

.page-contact .contact-window__lead {
  margin: 12px 0 0;
  font-size: 1rem;
  line-height: 1.75;
  color: var(--blue-gray);
}

.page-contact .window-list {
  list-style: none;
  margin: 32px 0 0;
  padding: 0;
  border-top: 1px solid var(--pc-hair);
}

.page-contact .window-item {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
  padding: 22px 0 22px 22px;
  border-bottom: 1px solid var(--pc-hair);
}

.page-contact .window-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 30px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--line-steel);
}

.page-contact .window-item--priority::before {
  background: var(--orange);
  box-shadow: 0 0 0 5px rgba(255, 138, 43, .15);
}

.page-contact .window-item__time {
  margin: 0;
  font-family: var(--font-mono);
  font-size: .8125rem;
  letter-spacing: .05em;
  color: var(--blue-gray);
}

.page-contact .window-item--priority .window-item__time {
  color: var(--orange);
}

.page-contact .window-item__body h3 {
  margin: 0 0 7px;
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -.01em;
  color: var(--fog);
}

.page-contact .window-item__body p {
  margin: 0;
  max-width: 52em;
  font-size: .9375rem;
  line-height: 1.75;
  color: var(--blue-gray);
}

/* ---------- 合作洽谈 ---------- */

.page-contact .coop {
  padding-top: 72px;
}

.page-contact .coop__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 30px;
}

.page-contact .coop__intro p {
  margin: 16px 0 20px;
  max-width: 40em;
  font-size: 1rem;
  line-height: 1.78;
  color: var(--blue-gray);
}

.page-contact .coop__figure {
  position: relative;
  margin: 0;
  border: 1px solid var(--pc-hair);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--ink-void);
}

.page-contact .coop__figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  aspect-ratio: 10 / 7;
}

.page-contact .coop__figure figcaption {
  position: absolute;
  left: 14px;
  bottom: 14px;
  padding: 4px 10px;
  border: 1px solid rgba(34, 49, 79, .8);
  border-radius: var(--radius-xs);
  background: rgba(5, 10, 20, .82);
  font-family: var(--font-mono);
  font-size: .6875rem;
  letter-spacing: .06em;
  color: var(--blue-gray);
}

.page-contact .coop-list {
  list-style: none;
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin: 38px 0 0;
  padding: 0;
}

.page-contact .coop-item {
  padding: 22px 20px 20px;
  border: 1px solid var(--pc-hair);
  border-radius: var(--radius-md);
  background: linear-gradient(158deg, rgba(17, 30, 56, .88), rgba(10, 18, 36, .96));
  transition: transform .25s ease, border-color .25s ease;
}

.page-contact .coop-item:hover {
  transform: translateY(-3px);
  border-color: rgba(255, 138, 43, .5);
}

.page-contact .coop-item__glyph {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  margin-bottom: 14px;
  border: 1px solid rgba(255, 138, 43, .38);
  border-radius: var(--radius-sm);
  background: rgba(255, 138, 43, .1);
  color: var(--orange);
}

.page-contact .coop-item h3 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: 1.1875rem;
  font-weight: 700;
  color: var(--fog);
}

.page-contact .coop-item p {
  margin: 0;
  font-size: .9375rem;
  line-height: 1.72;
  color: var(--blue-gray);
}

.page-contact .coop__brief {
  margin-top: 26px;
  padding: 24px 24px 22px;
  border: 1px solid var(--pc-hair-soft);
  border-left: 3px solid var(--cyan);
  border-radius: var(--radius-sm);
  background: var(--pc-panel);
}

.page-contact .coop__brief h3 {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--fog);
}

.page-contact .coop__brief-list {
  list-style: none;
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  margin: 0;
  padding: 0;
}

.page-contact .coop__brief-list li {
  position: relative;
  padding-left: 22px;
  font-size: .9375rem;
  line-height: 1.7;
  color: var(--blue-gray);
}

.page-contact .coop__brief-list li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: .62em;
  width: 9px;
  height: 9px;
  border: 1px solid var(--cyan);
  border-radius: 2px;
}

.page-contact .coop__brief-note {
  margin: 16px 0 0;
  font-family: var(--font-mono);
  font-size: .8125rem;
  line-height: 1.7;
  color: var(--ghost);
  overflow-wrap: anywhere;
}

/* ---------- 反馈清单 ---------- */

.page-contact .feedback {
  padding-top: 72px;
}

.page-contact .feedback__lead {
  margin: 12px 0 0;
  max-width: 46em;
  font-size: 1rem;
  line-height: 1.75;
  color: var(--blue-gray);
}

.page-contact .feedback-list {
  list-style: none;
  margin: 32px 0 0;
  padding: 0;
  border-top: 1px solid var(--pc-hair);
}

.page-contact .feedback-item {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  padding: 20px 0;
  border-bottom: 1px solid var(--pc-hair);
}

.page-contact .feedback-item__num {
  padding-top: 3px;
  font-family: var(--font-mono);
  font-size: .8125rem;
  letter-spacing: .08em;
  color: var(--cyan);
}

.page-contact .feedback-item__body h3 {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--fog);
}

.page-contact .feedback-item__body p {
  margin: 0;
  max-width: 50em;
  font-size: .9375rem;
  line-height: 1.72;
  color: var(--blue-gray);
}

/* ---------- 来访坐标 ---------- */

.page-contact .locate {
  padding-top: 72px;
}

.page-contact .locate__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
  margin-top: 30px;
}

.page-contact .locate__card {
  padding: 24px 24px 22px;
  background: var(--paper);
  color: var(--ink-base);
  border: 1px solid var(--ink-void);
  border-radius: var(--radius-sm);
  box-shadow: var(--pc-paper-shadow);
}

.page-contact .locate__card-label {
  display: flex;
  align-items: center;
  gap: 9px;
  margin: 0;
  font-family: var(--font-mono);
  font-size: .75rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--orange-deep);
}

.page-contact .locate__card-label::before {
  content: "";
  width: 22px;
  height: 2px;
  background: var(--orange);
}

.page-contact .locate__card-value {
  margin: 14px 0 0;
  font-size: 1.0625rem;
  font-weight: 700;
  line-height: 1.6;
  color: var(--ink-base);
}

.page-contact .locate__card-note {
  margin: 12px 0 0;
  font-size: .9375rem;
  line-height: 1.7;
  color: var(--line-steel);
}

.page-contact .locate__card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .locate__card-tags li {
  padding: 3px 9px;
  border: 1px solid rgba(34, 49, 79, .42);
  border-radius: var(--radius-xs);
  background: rgba(34, 49, 79, .07);
  font-family: var(--font-mono);
  font-size: .6875rem;
  letter-spacing: .04em;
  color: var(--line-steel);
}

.page-contact .locate__notes {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  align-content: start;
}

.page-contact .locate__note {
  padding: 20px 20px 18px;
  border: 1px solid var(--pc-hair);
  border-radius: var(--radius-md);
  background: linear-gradient(158deg, rgba(17, 30, 56, .82), rgba(10, 18, 36, .95));
}

.page-contact .locate__note h3 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--fog);
}

.page-contact .locate__note p {
  margin: 0;
  font-size: .9375rem;
  line-height: 1.72;
  color: var(--blue-gray);
  overflow-wrap: anywhere;
}

/* ---------- 下一步 ---------- */

.page-contact .contact-next {
  padding-top: 56px;
}

.page-contact .contact-next__bar {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  padding: 24px 24px 22px;
  border: 1px solid var(--pc-hair);
  border-radius: var(--radius-md);
  background: var(--ink-void);
}

.page-contact .contact-next__bar p {
  margin: 0;
  max-width: 44em;
  font-size: .9375rem;
  line-height: 1.72;
  color: var(--blue-gray);
}

.page-contact .contact-next__links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* ---------- 响应式 ---------- */

@media (min-width: 620px) {
  .page-contact .contact-channels {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-contact .contact-channels .channel-card:last-child {
    grid-column: 1 / -1;
  }

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

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

  .page-contact .contact-next__bar {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 26px;
  }
}

@media (min-width: 760px) {
  .page-contact .window-item {
    grid-template-columns: 200px minmax(0, 1fr);
    gap: 26px;
    align-items: start;
    padding-left: 26px;
  }

  .page-contact .window-item::before {
    top: 32px;
  }
}

@media (min-width: 980px) {
  .page-contact .contact-hero {
    padding-top: 42px;
  }

  .page-contact .contact-hero__grid {
    grid-template-columns: minmax(0, 1.04fr) minmax(0, 1fr);
    gap: 52px;
    align-items: start;
    margin-top: 34px;
  }

  .page-contact .contact-hero__map {
    position: sticky;
    top: calc(var(--header-h) + 30px);
  }

  .page-contact .contact-channels {
    grid-template-columns: 1fr;
  }

  .page-contact .contact-channels .channel-card:last-child {
    grid-column: auto;
  }

  .page-contact .coop__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, .92fr);
    gap: 48px;
    align-items: center;
  }

  .page-contact .locate__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.15fr);
    gap: 30px;
    align-items: start;
  }
}

@media (min-width: 1180px) {
  .page-contact .coop-list {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .channel-card,
  .page-contact .coop-item {
    transition: none;
  }

  .page-contact .channel-card:hover,
  .page-contact .channel-card:focus-within,
  .page-contact .coop-item:hover {
    transform: none;
  }

  .page-contact .contact-hero__map {
    position: static;
  }
}