.page-contact {
  padding-bottom: clamp(48px, 8vw, 96px);
}

/* 面包屑 */
.page-contact .breadcrumb {
  margin: 0 0 clamp(16px, 3vw, 28px);
}

.page-contact .breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--index);
}

.page-contact .breadcrumb li {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.page-contact .breadcrumb li + li::before {
  content: "/";
  color: var(--line-strong);
}

.page-contact .breadcrumb a {
  color: var(--index);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-contact .breadcrumb a:hover,
.page-contact .breadcrumb a:focus-visible {
  color: var(--cyber);
  border-bottom-color: var(--cyber);
}

/* 首屏 */
.page-contact .contact-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(20px, 3.6vw, 46px);
  border-radius: var(--radius);
  border: 1px solid var(--line-strong);
  background: linear-gradient(155deg, var(--tundra) 0%, rgba(18, 54, 42, 0.75) 45%, var(--night) 100%);
  box-shadow: var(--shadow-1);
}

.page-contact .contact-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(63, 224, 212, 0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(63, 224, 212, 0.07) 1px, transparent 1px);
  background-size: 64px 64px;
  -webkit-mask-image: radial-gradient(120% 90% at 84% 10%, #000 0%, transparent 72%);
  mask-image: radial-gradient(120% 90% at 84% 10%, #000 0%, transparent 72%);
}

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

.page-contact .contact-hero .h-page {
  max-width: 22ch;
}

.page-contact .contact-hero .lede {
  max-width: 62ch;
  margin-bottom: 0;
}

.page-contact .contact-hero__media {
  margin: clamp(20px, 3.4vw, 34px) 0 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-contact .contact-hero__media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 21 / 9;
  object-fit: cover;
}

/* 三条通道 */
.page-contact .channels {
  margin: clamp(32px, 5.5vw, 66px) 0;
}

.page-contact .channel-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(14px, 2vw, 22px);
  margin-top: clamp(18px, 3vw, 30px);
}

.page-contact .channel-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: clamp(18px, 2.4vw, 28px);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--tundra);
  box-shadow: var(--shadow-1);
  transition: transform 0.3s var(--ease), border-color 0.3s var(--ease);
}

.page-contact .channel-card:hover {
  transform: translateY(-3px);
  border-color: var(--line-strong);
}

.page-contact .channel-card--primary {
  border-color: rgba(255, 138, 61, 0.55);
  background: linear-gradient(160deg, rgba(255, 138, 61, 0.12), rgba(18, 54, 42, 0.92) 58%);
}

.page-contact .channel-card__key {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--index);
}

.page-contact .channel-card--primary .channel-card__key {
  color: var(--amber);
}

.page-contact .channel-card__title {
  margin: 0;
  font-size: clamp(20px, 2.2vw, 24px);
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--silver);
}

.page-contact .channel-card__value {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 15px;
  line-height: 1.85;
  color: var(--cyber);
  word-break: break-word;
}

.page-contact .channel-card--primary .channel-card__value {
  font-size: 16px;
}

.page-contact .channel-card__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--silver);
  opacity: 0.8;
}

.page-contact .channel-card__list {
  margin: 4px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 6px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--index);
}

.page-contact .channel-card__list li {
  position: relative;
  padding-left: 16px;
}

.page-contact .channel-card__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.66em;
  width: 6px;
  height: 6px;
  border-radius: 2px;
  background: var(--signal);
}

.page-contact .channel-card__note {
  margin: auto 0 0;
  padding-top: 12px;
  border-top: 1px dashed var(--line-strong);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--index);
}

/* 联系方式 */
.page-contact .reach {
  margin: clamp(36px, 6vw, 78px) 0;
}

.page-contact .reach__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(22px, 3.4vw, 40px);
}

.page-contact .reach-list {
  margin: clamp(16px, 2.6vw, 26px) 0 0;
}

.page-contact .reach-list__row {
  padding: clamp(14px, 2vw, 20px) 0;
  border-top: 1px solid var(--line);
}

.page-contact .reach-list__row:last-child {
  border-bottom: 1px solid var(--line);
}

.page-contact .reach-list dt {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--index);
}

.page-contact .reach-list dd {
  margin: 4px 0 0;
  font-family: var(--font-mono);
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.95;
  color: var(--silver);
  word-break: break-word;
}

.page-contact .reach-note {
  margin: clamp(16px, 2.4vw, 24px) 0 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--index);
}

.page-contact .reach-note a {
  color: var(--cyber);
  text-decoration: none;
  border-bottom: 1px solid rgba(63, 224, 212, 0.4);
}

.page-contact .reach-note a:hover,
.page-contact .reach-note a:focus-visible {
  border-bottom-color: var(--cyber);
}

.page-contact .reach__fig {
  margin: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-contact .reach__fig img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: cover;
}

/* 反馈清单 */
.page-contact .brief {
  margin: clamp(36px, 6vw, 78px) 0;
}

.page-contact .brief__groups {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(16px, 2.4vw, 26px);
  margin-top: clamp(18px, 3vw, 30px);
}

.page-contact .brief-group {
  padding: clamp(16px, 2.2vw, 24px);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(18, 54, 42, 0.55);
}

.page-contact .brief-group__head {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin: 0 0 14px;
}

.page-contact .brief-group__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--cyber);
}

.page-contact .brief-group__title {
  font-size: 18px;
  font-weight: 700;
  color: var(--silver);
}

.page-contact .check-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}

.page-contact .check-list li {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--silver);
}

.page-contact .check-list__box {
  position: relative;
  flex: none;
  width: 18px;
  height: 18px;
  margin-top: 3px;
  border: 1px solid var(--signal);
  border-radius: 5px;
  background: rgba(63, 224, 212, 0.06);
}

.page-contact .check-list__box::after {
  content: "";
  position: absolute;
  left: 5px;
  top: 1px;
  width: 5px;
  height: 10px;
  border-right: 2px solid var(--cyber);
  border-bottom: 2px solid var(--cyber);
  transform: rotate(45deg);
}

.page-contact .brief__tip {
  margin: clamp(18px, 3vw, 28px) 0 0;
  padding: 14px 18px;
  border-left: 3px solid var(--amber);
  background: rgba(255, 138, 61, 0.08);
  border-radius: 0 10px 10px 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--silver);
}

.page-contact .brief__tip a {
  color: var(--amber);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 138, 61, 0.45);
}

.page-contact .brief__tip a:hover,
.page-contact .brief__tip a:focus-visible {
  border-bottom-color: var(--amber);
}

/* 合作 */
.page-contact .partners {
  margin: clamp(36px, 6vw, 78px) 0;
}

.page-contact .partner-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(16px, 2.4vw, 24px);
  margin-top: clamp(18px, 3vw, 30px);
}

.page-contact .partner-card {
  padding: clamp(18px, 2.4vw, 28px);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(150deg, rgba(31, 122, 85, 0.24), rgba(11, 31, 23, 0.92));
}

.page-contact .partner-card__title {
  margin: 0 0 10px;
  font-size: 20px;
  font-weight: 800;
  color: var(--silver);
}

.page-contact .partner-card p {
  margin: 0 0 10px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--silver);
  opacity: 0.84;
}

.page-contact .partner-card p:last-child {
  margin-bottom: 0;
}

.page-contact .partner-card__meta {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--cyber);
  opacity: 1;
}

.page-contact .collab {
  margin: clamp(20px, 3vw, 30px) 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}

.page-contact .collab li {
  padding: 14px 18px;
  border: 1px solid var(--line-strong);
  border-radius: 12px;
  background: var(--tundra);
  font-size: 14px;
  line-height: 1.8;
  color: var(--silver);
}

.page-contact .collab strong {
  display: block;
  margin-bottom: 4px;
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: 0.06em;
  color: var(--cyber);
}

/* 四步流程 */
.page-contact .flow {
  margin: clamp(36px, 6vw, 78px) 0;
}

.page-contact .flow__list {
  margin: clamp(18px, 3vw, 30px) 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.page-contact .flow__step {
  position: relative;
  padding: clamp(16px, 2.2vw, 22px);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(18, 54, 42, 0.5);
}

.page-contact .flow__num {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--amber);
}

.page-contact .flow__name {
  margin: 8px 0;
  font-size: 18px;
  font-weight: 800;
  color: var(--silver);
}

.page-contact .flow__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--silver);
  opacity: 0.82;
}

/* 结束带 */
.page-contact .contact-cta {
  margin: clamp(36px, 6vw, 78px) 0 0;
  padding: clamp(22px, 3.4vw, 42px);
  border-radius: var(--radius);
}

.page-contact .contact-cta h2 {
  margin-top: 0;
  color: var(--ink);
}

.page-contact .contact-cta p {
  max-width: 62ch;
  color: rgba(36, 26, 21, 0.82);
}

.page-contact .contact-cta .index-line {
  color: rgba(36, 26, 21, 0.62);
}

.page-contact .contact-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(16px, 2.6vw, 24px);
}

.page-contact .contact-cta__actions .btn {
  text-decoration: none;
}

.page-contact .contact-cta__actions .btn--ghost {
  color: var(--ink);
  border-color: rgba(36, 26, 21, 0.35);
}

.page-contact .contact-cta__actions .btn--ghost:hover,
.page-contact .contact-cta__actions .btn--ghost:focus-visible {
  border-color: var(--ink);
}

/* 桌面栅格 */
@media (min-width: 620px) {
  .page-contact .reach-list__row {
    display: grid;
    grid-template-columns: 132px 1fr;
    gap: 18px;
    align-items: baseline;
  }

  .page-contact .reach-list dd {
    margin-top: 0;
  }
}

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

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

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

@media (min-width: 880px) {
  .page-contact .channel-grid {
    grid-template-columns: 1.35fr 1fr 0.95fr;
    align-items: stretch;
  }
}

@media (min-width: 900px) {
  .page-contact .reach__grid {
    grid-template-columns: 1.7fr 1fr;
    align-items: start;
  }

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

  .page-contact .flow__step {
    border-radius: 0;
    border-right-width: 0;
  }

  .page-contact .flow__step:first-child {
    border-radius: var(--radius) 0 0 var(--radius);
  }

  .page-contact .flow__step:last-child {
    border-radius: 0 var(--radius) var(--radius) 0;
    border-right-width: 1px;
  }

  .page-contact .flow__step + .flow__step::before {
    content: "";
    position: absolute;
    left: -5px;
    top: 50%;
    width: 9px;
    height: 9px;
    border-top: 1px solid var(--cyber);
    border-right: 1px solid var(--cyber);
    transform: translateY(-50%) rotate(45deg);
    background: var(--night);
  }
}

@media (min-width: 1080px) {
  .page-contact .contact-hero {
    padding: clamp(30px, 4vw, 56px);
  }
}
<<<PAGE_CSS_END>>>