.page-contact {
  --contact-max: 1180px;
  --contact-gutter: clamp(20px, 4vw, 56px);
  background: linear-gradient(180deg, var(--deep-navy) 0%, var(--navy-mid) 62%, var(--ink-black) 100%);
  color: var(--mist);
  font-family: var(--font-body);
  font-size: var(--fs-17);
  line-height: 1.9;
  letter-spacing: .01em;
  overflow-x: clip;
  padding-bottom: var(--sp-7);
}

.page-contact .band {
  padding: var(--sp-7) max(var(--contact-gutter), calc((100% - var(--contact-max)) / 2));
}

.page-contact h1,
.page-contact h2,
.page-contact h3 {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: .02em;
  line-height: 1.35;
  color: var(--mist);
  margin: 0;
}

.page-contact h2 {
  font-size: clamp(24px, 3.6vw, var(--fs-32));
}

.page-contact h3 {
  font-size: var(--fs-22);
}

.page-contact .eyebrow {
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: .3em;
  color: var(--gold);
  margin: 0 0 var(--sp-3);
  text-transform: uppercase;
}

.page-contact .head {
  max-width: 62ch;
  margin-bottom: var(--sp-6);
}

.page-contact .head__note {
  margin: var(--sp-4) 0 0;
  color: var(--silver);
  font-size: var(--fs-17);
}

/* ---------- 首屏 ---------- */
.page-contact .hero {
  position: relative;
  padding-top: calc(var(--header-h) + var(--sp-6));
}

.page-contact .hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(120% 82% at 88% 0%, rgba(53, 208, 192, .10), transparent 58%),
    radial-gradient(90% 70% at 4% 100%, rgba(110, 91, 216, .14), transparent 64%);
  pointer-events: none;
}

.page-contact .hero__grid {
  position: relative;
  display: grid;
  gap: var(--sp-6);
  align-items: center;
}

.page-contact .breadcrumbs__list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-2) var(--sp-3);
  list-style: none;
  margin: 0 0 var(--sp-5);
  padding: 0;
  font-size: var(--fs-12);
  letter-spacing: .08em;
  color: var(--silver);
}

.page-contact .breadcrumbs__item a {
  color: var(--silver);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

.page-contact .breadcrumbs__item a:hover,
.page-contact .breadcrumbs__item a:focus-visible {
  color: var(--spark-teal);
  border-color: var(--spark-teal);
}

.page-contact .breadcrumbs__item[aria-current="page"] {
  color: var(--gold);
}

.page-contact h1 {
  font-size: clamp(30px, 5.4vw, var(--fs-48));
  max-width: 20ch;
}

.page-contact .hero__lead {
  max-width: 54ch;
  margin: var(--sp-5) 0 0;
  color: var(--silver);
}

.page-contact .hero__points {
  list-style: none;
  margin: var(--sp-5) 0 0;
  padding: var(--sp-4) 0 0;
  border-top: 1px solid var(--hairline);
  display: grid;
  gap: var(--sp-3);
}

.page-contact .hero__points li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--sp-3);
  align-items: baseline;
  font-size: var(--fs-14);
  color: var(--mist);
}

.page-contact .hero__points .mono,
.page-contact .checklist__no,
.page-contact .channel__value {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
}

.page-contact .hero__points .mono {
  font-size: var(--fs-12);
  letter-spacing: .12em;
  color: var(--gold);
}

.page-contact .hero__figure {
  margin: 0;
  border: 1px solid var(--copper-line);
  border-radius: 10px;
  overflow: hidden;
  background: var(--ink-black);
  box-shadow: 0 40px 80px -50px rgba(2, 9, 15, .95);
}

.page-contact .hero__figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 7 / 5;
  object-fit: cover;
  filter: saturate(.85) contrast(1.06);
}

/* ---------- 三条通道 ---------- */
.page-contact .channels {
  border-top: 1px solid var(--rule);
}

.page-contact .channels__grid {
  display: grid;
  gap: var(--sp-4);
}

.page-contact .channel {
  position: relative;
  padding: var(--sp-5);
  border: 1px solid var(--hairline);
  border-radius: 12px;
  background: linear-gradient(158deg, var(--glass-strong), var(--glass));
  transition: transform .25s var(--ease), border-color .25s var(--ease);
}

.page-contact .channel--solid {
  background: var(--deep-steel);
  border-color: var(--copper-line);
}

.page-contact .channel::after {
  content: "";
  position: absolute;
  left: var(--sp-5);
  right: var(--sp-5);
  top: calc(var(--sp-5) + 44px + var(--sp-4));
  height: 1px;
  background: linear-gradient(90deg, var(--copper-line), transparent);
}

.page-contact .channel:hover {
  transform: translateY(-4px);
  border-color: var(--gold);
}

.page-contact .channel:focus-visible {
  outline: 2px solid var(--spark-teal);
  outline-offset: 3px;
  border-color: var(--gold);
}

.page-contact .channel__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border: 1px solid var(--hairline);
  border-radius: 50%;
  color: var(--gold);
  margin-bottom: var(--sp-5);
}

.page-contact .channel__icon svg {
  width: 22px;
  height: 22px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.4;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.page-contact .channel__title {
  font-size: var(--fs-22);
  margin-bottom: var(--sp-3);
}

.page-contact .channel__value {
  margin: 0 0 var(--sp-4);
  font-size: var(--fs-17);
  line-height: 1.6;
  color: var(--gold);
  overflow-wrap: anywhere;
}

.page-contact .channel__desc {
  margin: 0;
  font-size: var(--fs-14);
  line-height: 1.85;
  color: var(--silver);
}

.page-contact .channel:focus-visible .channel__desc,
.page-contact .channel:hover .channel__desc {
  color: var(--mist);
}

/* ---------- 咨询准备与响应节奏 ---------- */
.page-contact .prep {
  border-top: 1px solid var(--rule);
}

.page-contact .prep__grid {
  display: grid;
  gap: var(--sp-6);
}

.page-contact .prep__lead {
  margin: var(--sp-4) 0 0;
  color: var(--silver);
  max-width: 52ch;
}

.page-contact .checklist {
  list-style: none;
  margin: var(--sp-5) 0 0;
  padding: 0;
  display: grid;
  gap: var(--sp-3);
}

.page-contact .checklist__item {
  display: grid;
  grid-template-columns: auto auto minmax(0, 1fr);
  gap: var(--sp-3);
  align-items: start;
  padding: var(--sp-4) var(--sp-4) var(--sp-4) var(--sp-3);
  border-left: 2px solid var(--copper-line);
  border-radius: 0 10px 10px 0;
  background: var(--glass);
  transition: background-color .25s var(--ease), border-color .25s var(--ease);
}

.page-contact .checklist__item:hover {
  background: var(--glass-strong);
  border-left-color: var(--gold);
}

.page-contact .checklist__no {
  font-size: var(--fs-12);
  letter-spacing: .1em;
  color: var(--gold);
  padding-top: 4px;
}

.page-contact .checklist__box {
  width: 15px;
  height: 15px;
  margin-top: 6px;
  border: 1px solid var(--gold);
  border-radius: 3px;
  position: relative;
  flex: none;
}

.page-contact .checklist__box::after {
  content: "";
  position: absolute;
  inset: 3px;
  background: var(--cinnabar);
  border-radius: 1px;
  opacity: .85;
}

.page-contact .checklist__text {
  margin: 0;
  font-size: var(--fs-14);
  line-height: 1.85;
  color: var(--silver);
}

.page-contact .checklist__text strong {
  display: block;
  font-family: var(--font-display);
  font-size: var(--fs-17);
  color: var(--mist);
  letter-spacing: .02em;
  margin-bottom: 2px;
}

.page-contact .pace {
  background: var(--navy-mid);
  border: 1px solid var(--rule);
  border-radius: 12px;
  padding: var(--sp-5);
}

.page-contact .pace__title {
  font-size: var(--fs-22);
  margin-top: var(--sp-2);
}

.page-contact .pace__track {
  list-style: none;
  margin: var(--sp-5) 0 0;
  padding: 0;
  display: grid;
  gap: var(--sp-5);
}

.page-contact .pace__node {
  position: relative;
  padding-left: var(--sp-5);
}

.page-contact .pace__node::before {
  content: "";
  position: absolute;
  left: 4px;
  top: 8px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--night-violet);
  box-shadow: 0 0 0 4px rgba(110, 91, 216, .18);
}

.page-contact .pace__node::after {
  content: "";
  position: absolute;
  left: 8px;
  top: 20px;
  bottom: calc(-1 * var(--sp-5));
  width: 1px;
  background: linear-gradient(180deg, var(--night-violet), transparent);
}

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

.page-contact .pace__label {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: .14em;
  color: var(--gold);
  margin-bottom: var(--sp-2);
}

.page-contact .pace__text {
  margin: 0;
  font-size: var(--fs-14);
  line-height: 1.85;
  color: var(--silver);
}

/* ---------- 合作方向 ---------- */
.page-contact .coop {
  border-top: 1px solid var(--rule);
  background: linear-gradient(180deg, transparent, rgba(6, 24, 41, .7));
}

.page-contact .coop__grid {
  display: grid;
  gap: var(--sp-6);
}

.page-contact .coop__intro > p {
  margin: var(--sp-4) 0 0;
  color: var(--silver);
  max-width: 46ch;
}

.page-contact .coop__figure {
  margin: var(--sp-5) 0 0;
  border: 1px solid var(--copper-line);
  border-radius: 10px;
  overflow: hidden;
  background: var(--ink-black);
}

.page-contact .coop__figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  filter: saturate(.8) contrast(1.05);
}

.page-contact .coop__cells {
  display: grid;
  gap: 1px;
  background: var(--copper-line);
  border: 1px solid var(--copper-line);
  border-radius: 12px;
  overflow: hidden;
}

.page-contact .coop-cell {
  background: var(--deep-navy);
  padding: var(--sp-5);
  transition: background-color .25s var(--ease);
}

.page-contact .coop-cell:hover,
.page-contact .coop-cell:focus-within {
  background: var(--navy-mid);
}

.page-contact .coop-cell__title {
  font-size: var(--fs-22);
  margin-bottom: var(--sp-3);
}

.page-contact .coop-cell__title::before {
  content: "";
  display: inline-block;
  width: 18px;
  height: 1px;
  background: var(--gold);
  vertical-align: middle;
  margin-right: var(--sp-3);
}

.page-contact .coop-cell__text {
  margin: 0;
  font-size: var(--fs-14);
  line-height: 1.9;
  color: var(--silver);
}

/* ---------- 结尾指引 ---------- */
.page-contact .outro {
  border-top: 1px solid var(--rule);
}

.page-contact .outro__links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: var(--sp-4);
}

.page-contact .outro__links li {
  padding: var(--sp-4) var(--sp-5);
  border: 1px solid var(--rule);
  border-radius: 10px;
  background: var(--glass);
  transition: border-color .25s var(--ease), transform .25s var(--ease);
}

.page-contact .outro__links li:hover {
  border-color: var(--gold);
  transform: translateY(-3px);
}

.page-contact .outro__links a {
  display: block;
  font-family: var(--font-display);
  font-size: var(--fs-22);
  color: var(--spark-teal);
  text-decoration: none;
  margin-bottom: var(--sp-2);
}

.page-contact .outro__links a:hover,
.page-contact .outro__links a:focus-visible {
  color: var(--gold);
  text-decoration: underline;
  text-underline-offset: 6px;
}

.page-contact .outro__links span {
  display: block;
  font-size: var(--fs-14);
  line-height: 1.85;
  color: var(--silver);
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-contact .channels__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 940px) {
  .page-contact .hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: var(--sp-7);
  }

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

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

  .page-contact .coop__grid {
    grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
    gap: var(--sp-7);
  }

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

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

@media (min-width: 860px) {
  .page-contact .pace__track {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: var(--sp-4);
  }

  .page-contact .pace__node {
    padding-left: 0;
    padding-top: var(--sp-5);
  }

  .page-contact .pace__node::before {
    left: 0;
    top: 0;
  }

  .page-contact .pace__node::after {
    left: 13px;
    top: 4px;
    bottom: auto;
    width: calc(100% - 6px);
    height: 1px;
    background: linear-gradient(90deg, var(--night-violet), rgba(110, 91, 216, .12));
  }

  .page-contact .pace__label {
    margin-bottom: var(--sp-3);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .channel,
  .page-contact .checklist__item,
  .page-contact .coop-cell,
  .page-contact .outro__links li,
  .page-contact .breadcrumbs__item a {
    transition: none;
  }

  .page-contact .channel:hover,
  .page-contact .outro__links li:hover {
    transform: none;
  }
}