.page-contact {
  --pc-panel-line: rgba(138, 221, 255, 0.16);
  --pc-panel-hover: #241E52;
  --pc-pale-muted: #4E6272;
  --pc-pale-line: rgba(6, 21, 35, 0.14);
  background: var(--ink);
  color: var(--body-ink);
  padding-bottom: clamp(64px, 9vw, 132px);
  overflow-x: hidden;
}

.page-contact .contact-shell {
  width: 100%;
  max-width: 1440px;
  margin-inline: auto;
  padding-inline: var(--gutter);
}

/* ---------- 面包屑 ---------- */
.page-contact .contact-crumbs {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  padding-block-start: clamp(20px, 3vw, 38px);
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--mist);
}
.page-contact .contact-crumbs a {
  color: var(--ice);
  text-decoration: none;
}
.page-contact .contact-crumbs a:hover {
  text-decoration: underline;
}
.page-contact .contact-crumbs__sep {
  color: var(--line);
}

/* ---------- 顶部 ---------- */
.page-contact .contact-hero {
  position: relative;
  isolation: isolate;
  border-bottom: 1px solid var(--line);
}
.page-contact .contact-hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.page-contact .contact-hero__bg img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: none;
  object-fit: cover;
  opacity: 0.26;
  filter: saturate(0.65) contrast(1.05);
}
.page-contact .contact-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background:
    linear-gradient(118deg, rgba(6, 21, 35, 0.95) 0%, rgba(6, 21, 35, 0.74) 44%, rgba(29, 24, 64, 0.9) 100%),
    repeating-linear-gradient(115deg, transparent 0 24px, rgba(138, 221, 255, 0.05) 24px 25px);
}
.page-contact .contact-hero__inner {
  position: relative;
  z-index: 2;
  width: 100%;
  max-width: 1440px;
  margin-inline: auto;
  padding-inline: var(--gutter);
  padding-block: clamp(52px, 7.5vw, 108px) clamp(44px, 5.5vw, 82px);
}
.page-contact .contact-hero__eyebrow {
  margin: 0 0 18px;
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--ice);
}
.page-contact .contact-hero__title {
  margin: 0;
  max-width: 17ch;
  font-family: var(--font-display);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.1;
  font-size: clamp(34px, 5.4vw, 68px);
  color: var(--pale);
}
.page-contact .contact-hero__lede {
  margin: 24px 0 0;
  max-width: 60ch;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.78;
  color: var(--body-ink);
}

/* ---------- 分区标题 ---------- */
.page-contact .section-head {
  margin-bottom: clamp(22px, 3vw, 38px);
}
.page-contact .section-head__kicker {
  margin: 0 0 10px;
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--amber);
}
.page-contact .section-head__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  letter-spacing: -0.015em;
  font-size: clamp(24px, 3vw, 34px);
  line-height: 1.24;
  color: var(--pale);
}

/* ---------- 分屏 ---------- */
.page-contact .contact-desk {
  max-width: 1440px;
  margin-inline: auto;
  padding-inline: var(--gutter);
  padding-block-start: clamp(56px, 8vw, 112px);
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(44px, 6vw, 80px);
}

/* ---------- 渠道卡片 ---------- */
.page-contact .channel-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
.page-contact .channel {
  position: relative;
  background: var(--indigo);
  padding: clamp(22px, 3vw, 32px);
  transition: background-color 220ms ease, transform 220ms ease;
}
.page-contact .channel::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 2px;
  height: 36px;
  background: var(--ice);
}
.page-contact .channel--alt::before {
  background: var(--amber);
}
.page-contact .channel:hover {
  background: var(--pc-panel-hover);
  transform: translateY(-2px);
}
.page-contact .channel__index {
  display: block;
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--mist);
}
.page-contact .channel__name {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  letter-spacing: -0.01em;
  font-size: clamp(19px, 2.2vw, 25px);
  color: var(--pale);
}
.page-contact .channel__value {
  margin: 12px 0 0;
  font-family: var(--font-num);
  font-size: clamp(16px, 1.8vw, 21px);
  letter-spacing: -0.01em;
  color: var(--ice);
  overflow-wrap: anywhere;
}
.page-contact .channel--alt .channel__value {
  color: var(--amber);
}
.page-contact .channel__for {
  margin: 14px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--body-ink);
}
.page-contact .channel__note {
  margin: 10px 0 0;
  padding-top: 10px;
  border-top: 1px solid var(--pc-panel-line);
  font-size: 12.5px;
  letter-spacing: 0.02em;
  color: var(--mist);
}
.page-contact .channel-cta {
  display: inline-block;
  margin-top: clamp(20px, 2.5vw, 28px);
}

/* ---------- 提交要点 ---------- */
.page-contact .brief-list {
  list-style: none;
  margin: 0;
  padding: 0;
}
.page-contact .brief {
  padding-block: clamp(18px, 2.4vw, 24px);
  border-bottom: 1px solid var(--line);
}
.page-contact .brief:first-child {
  border-top: 1px solid var(--line);
}
.page-contact .brief__num {
  display: block;
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--amber);
}
.page-contact .brief__head {
  margin: 9px 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 17px;
  letter-spacing: -0.005em;
  color: var(--pale);
}
.page-contact .brief__body {
  margin: 8px 0 0;
  max-width: 62ch;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--body-ink);
}
.page-contact .brief-hint {
  margin: clamp(18px, 2.4vw, 26px) 0 0;
  padding-left: 16px;
  border-left: 2px solid var(--aurora);
  font-size: 14px;
  line-height: 1.75;
  color: var(--mist);
}

/* ---------- 处理流程 ---------- */
.page-contact .contact-flow {
  margin-block-start: clamp(64px, 9vw, 132px);
  padding-block: clamp(48px, 6vw, 84px);
  background: linear-gradient(180deg, rgba(11, 60, 58, 0.34) 0%, rgba(6, 21, 35, 0) 100%);
  border-top: 1px solid var(--line);
}
.page-contact .contact-flow__figure {
  margin: 0 0 clamp(32px, 4vw, 52px);
}
.page-contact .handoff-line {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 38px);
}
.page-contact .handoff-step {
  position: relative;
  padding-top: 26px;
  border-top: 1px solid var(--line);
}
.page-contact .handoff-step__node {
  position: absolute;
  top: -4px;
  left: 0;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--ice);
  box-shadow: 0 0 0 3px rgba(138, 221, 255, 0.14);
}
.page-contact .handoff-step:nth-child(2) .handoff-step__node {
  background: var(--aurora);
  box-shadow: 0 0 0 3px rgba(63, 222, 156, 0.14);
}
.page-contact .handoff-step:nth-child(3) .handoff-step__node {
  background: var(--ice-deep);
  box-shadow: 0 0 0 3px rgba(12, 100, 136, 0.22);
}
.page-contact .handoff-step:nth-child(4) .handoff-step__node {
  background: var(--amber);
  box-shadow: 0 0 0 3px rgba(255, 154, 69, 0.16);
}
.page-contact .handoff-step__index {
  display: block;
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--mist);
}
.page-contact .handoff-step__title {
  margin: 8px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(18px, 2vw, 22px);
  color: var(--pale);
}
.page-contact .handoff-step__text {
  margin: 8px 0 0;
  font-size: 14px;
  line-height: 1.78;
  color: var(--body-ink);
}

/* ---------- 合作 ---------- */
.page-contact .contact-coop {
  margin-block-start: clamp(64px, 9vw, 132px);
  padding-block: clamp(48px, 6vw, 86px);
  background: var(--teal);
  border-block: 1px solid var(--line);
}
.page-contact .contact-coop .section-head__kicker {
  color: var(--aurora);
}
.page-contact .coop-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: rgba(138, 221, 255, 0.14);
  border: 1px solid rgba(138, 221, 255, 0.14);
}
.page-contact .coop-item {
  background: var(--teal);
  padding: clamp(22px, 3vw, 32px);
}
.page-contact .coop-item__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 17px;
  color: var(--pale);
}
.page-contact .coop-item__title::before {
  content: "";
  display: block;
  width: 22px;
  height: 2px;
  margin-bottom: 14px;
  background: var(--aurora);
}
.page-contact .coop-item__text {
  margin: 10px 0 0;
  font-size: 14px;
  line-height: 1.78;
  color: var(--body-ink);
}
.page-contact .coop-note {
  margin: clamp(24px, 3vw, 36px) 0 0;
  max-width: 74ch;
  font-size: 14px;
  line-height: 1.8;
  color: var(--mist);
}

/* ---------- 站点信息 ---------- */
.page-contact .contact-where {
  margin-block-start: clamp(64px, 9vw, 132px);
  padding-block: clamp(48px, 6vw, 86px);
  background: var(--pale);
  color: var(--ink);
  border-block: 1px solid var(--line);
}
.page-contact .contact-where .section-head__kicker {
  color: var(--ice-deep);
}
.page-contact .contact-where .section-head__title {
  color: var(--ink);
}
.page-contact .where-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--pc-pale-line);
  border: 1px solid var(--pc-pale-line);
}
.page-contact .where-item {
  background: var(--pale);
  padding: clamp(22px, 3vw, 32px);
}
.page-contact .where-item__label {
  margin: 0;
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--ice-deep);
}
.page-contact .where-item__value {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(17px, 2vw, 21px);
  line-height: 1.5;
  color: var(--ink);
}
.page-contact .where-item__note {
  margin: 10px 0 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--pc-pale-muted);
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-contact .where-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-contact .coop-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 860px) {
  .page-contact .handoff-line {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: clamp(24px, 3vw, 44px);
  }
}

@media (min-width: 1000px) {
  .page-contact .contact-desk {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    align-items: start;
    gap: clamp(48px, 5vw, 88px);
  }
  .page-contact .contact-desk__aside {
    position: sticky;
    top: calc(var(--header-h) + 28px);
  }
  .page-contact .contact-hero__lede {
    font-size: 17px;
  }
}

@media (min-width: 1280px) {
  .page-contact .contact-desk {
    grid-template-columns: minmax(0, 4.5fr) minmax(0, 7.5fr);
  }
}
<<<END>>>