.page-contact {
  --pc-muted: rgba(207, 230, 255, 0.66);
  --pc-line: rgba(207, 230, 255, 0.14);
  background: var(--void);
  color: var(--lamp);
}

/* ---------- 首屏：对角错位色块 ---------- */
.page-contact .contact-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding-block: clamp(28px, 4vw, 52px) clamp(44px, 6vw, 76px);
  border-bottom: 1px solid var(--pc-line);
}

.page-contact .contact-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    linear-gradient(118deg, rgba(108, 75, 255, 0.24) 0%, rgba(6, 11, 26, 0) 48%),
    radial-gradient(120% 92% at 94% 6%, rgba(34, 211, 238, 0.16) 0%, rgba(6, 11, 26, 0) 58%);
  clip-path: polygon(0 0, 100% 0, 100% 70%, 0 100%);
  pointer-events: none;
}

.page-contact .contact-hero__grid {
  display: grid;
  gap: clamp(28px, 4vw, 52px);
  margin-top: clamp(22px, 3.4vw, 44px);
}

@media (min-width: 940px) {
  .page-contact .contact-hero__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.02fr);
    align-items: end;
    gap: clamp(32px, 4vw, 64px);
  }
}

.page-contact .contact-hero__title {
  margin: 14px 0 0;
  font-size: clamp(44px, 11vw, 104px);
  font-weight: 200;
  letter-spacing: -0.035em;
  line-height: 0.95;
  color: var(--white);
}

.page-contact .contact-hero__lead {
  max-width: 46ch;
  margin: 20px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--pc-muted);
}

.page-contact .contact-hero__note {
  max-width: 46ch;
  margin: 18px 0 0;
  padding-left: 14px;
  border-left: 2px solid var(--pulse);
  font-size: 13px;
  line-height: 1.7;
  color: var(--pc-muted);
}

.page-contact .contact-hero__figure {
  margin: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--void-2);
}

/* ---------- 正文网格 ---------- */
.page-contact .contact-body {
  padding-block: 0 clamp(64px, 9vw, 112px);
}

.page-contact .contact-body .grid-12 {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0;
}

.page-contact .contact-main {
  display: grid;
  gap: clamp(56px, 8vw, 104px);
  padding-top: clamp(48px, 7vw, 88px);
  min-width: 0;
}

@media (min-width: 1024px) {
  .page-contact .contact-body .grid-12 {
    grid-template-columns: repeat(12, minmax(0, 1fr));
    column-gap: clamp(24px, 3vw, 48px);
  }

  .page-contact .contact-body .col-main {
    grid-column: 1 / span 8;
  }

  .page-contact .contact-body .col-side {
    grid-column: 10 / span 3;
  }
}

/* ---------- 区块通用排版 ---------- */
.page-contact .contact-block {
  min-width: 0;
}

.page-contact .contact-block__title {
  margin: 14px 0 0;
  font-size: clamp(24px, 3.4vw, 40px);
  font-weight: 300;
  letter-spacing: -0.015em;
  line-height: 1.16;
  color: var(--white);
}

.page-contact .contact-block__lead {
  max-width: 58ch;
  margin: 16px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--pc-muted);
}

.page-contact .contact-block__lead a,
.page-contact .intent-card__desc a,
.page-contact .contact-legal__note a {
  color: var(--lamp);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

.page-contact .contact-block__lead a:hover,
.page-contact .intent-card__desc a:hover,
.page-contact .contact-legal__note a:hover {
  color: var(--white);
  text-decoration-color: var(--pulse);
}

.page-contact .media-frame img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- 三类来意：不等宽色块 ---------- */
.page-contact .intent-row {
  display: grid;
  gap: 12px;
  margin-top: clamp(24px, 3.4vw, 42px);
}

@media (min-width: 900px) {
  .page-contact .intent-row {
    grid-template-columns: 5fr 4fr 3fr;
  }
}

.page-contact .intent-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: clamp(20px, 2.4vw, 30px);
  border-radius: var(--radius-md);
  background: var(--void-2);
  border: 1px solid var(--pc-line);
  overflow: hidden;
  transition: background-color 200ms var(--ease), border-color 200ms var(--ease);
}

.page-contact .intent-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  background: var(--pc-intent, var(--nebula));
}

.page-contact .intent-card--fix { --pc-intent: var(--nebula); }
.page-contact .intent-card--coop { --pc-intent: var(--pulse); }
.page-contact .intent-card--use { --pc-intent: var(--lamp); }

.page-contact .intent-card:hover {
  background: rgba(108, 75, 255, 0.09);
  border-color: rgba(34, 211, 238, 0.4);
}

.page-contact .intent-card__tag {
  margin: 4px 0 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--pc-muted);
}

.page-contact .intent-card__title {
  margin: 0;
  font-size: clamp(17px, 2vw, 21px);
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--white);
}

.page-contact .intent-card__desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--pc-muted);
}

.page-contact .intent-card__list {
  list-style: none;
  margin: 6px 0 0;
  padding: 0;
  display: grid;
  gap: 6px;
}

.page-contact .intent-card__list li {
  position: relative;
  padding-left: 16px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--pc-muted);
}

.page-contact .intent-card__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.68em;
  width: 7px;
  height: 1px;
  background: var(--pc-intent, var(--nebula));
}

/* ---------- 联络方式：等宽集中呈现 ---------- */
.page-contact .channel-list {
  margin: clamp(24px, 3.4vw, 42px) 0 0;
  padding: 0;
  display: grid;
  border-top: 1px solid var(--pc-line);
}

.page-contact .channel {
  display: grid;
  gap: 8px;
  padding-block: clamp(20px, 2.8vw, 32px);
  border-bottom: 1px solid var(--pc-line);
}

@media (min-width: 760px) {
  .page-contact .channel {
    grid-template-columns: 148px minmax(0, 1fr);
    align-items: baseline;
    gap: 28px;
  }
}

.page-contact .channel__key {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--pc-muted);
}

.page-contact .channel__val {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(15px, 2.3vw, 26px);
  line-height: 1.42;
  letter-spacing: 0.01em;
  color: var(--white);
  overflow-wrap: anywhere;
}

/* ---------- 处理流程：纵向时间线 ---------- */
.page-contact .contact-figure {
  margin: clamp(24px, 3.4vw, 40px) 0 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--void-2);
}

.page-contact .timeline {
  list-style: none;
  margin: clamp(32px, 4.6vw, 52px) 0 0;
  padding: 0 0 0 28px;
  border-left: 1px solid var(--pc-line);
  display: grid;
  gap: clamp(30px, 4.4vw, 48px);
}

.page-contact .timeline__item {
  position: relative;
  min-width: 0;
}

.page-contact .timeline__node {
  position: absolute;
  left: -34px;
  top: 7px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--void);
  border: 1px solid var(--pulse);
  box-shadow: 0 0 0 4px rgba(34, 211, 238, 0.08);
}

.page-contact .timeline__title {
  margin: 0 0 8px;
  font-size: clamp(17px, 2vw, 20px);
  font-weight: 500;
  color: var(--white);
}

.page-contact .timeline__text {
  margin: 0;
  max-width: 58ch;
  font-size: 14.5px;
  line-height: 1.82;
  color: var(--pc-muted);
}

/* ---------- 提交建议清单 ---------- */
.page-contact .check-list {
  list-style: none;
  margin: clamp(24px, 3.4vw, 42px) 0 0;
  padding: 0;
  display: grid;
  border-top: 1px solid var(--pc-line);
}

.page-contact .check-list__item {
  display: grid;
  gap: 5px;
  padding-block: clamp(16px, 2.1vw, 24px);
  border-bottom: 1px solid var(--pc-line);
}

@media (min-width: 720px) {
  .page-contact .check-list__item {
    grid-template-columns: 180px minmax(0, 1fr);
    align-items: baseline;
    gap: 28px;
  }
}

.page-contact .check-list__key {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--pulse);
}

.page-contact .check-list__val {
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--pc-muted);
}

/* ---------- 来意模板 ---------- */
.page-contact .template-list {
  display: grid;
  gap: 14px;
  margin-top: clamp(24px, 3.4vw, 42px);
}

@media (min-width: 900px) {
  .page-contact .template-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-contact .template {
  display: flex;
  flex-direction: column;
  padding: clamp(18px, 2.2vw, 26px);
  border-radius: var(--radius-sm);
  background: var(--void-2);
  border: 1px solid var(--pc-line);
  transition: border-color 200ms var(--ease), background-color 200ms var(--ease);
}

.page-contact .template:hover {
  background: rgba(34, 211, 238, 0.06);
  border-color: rgba(34, 211, 238, 0.36);
}

.page-contact .template__label {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--pulse);
}

.page-contact .template__body {
  margin: 0;
  font-size: 14px;
  line-height: 1.88;
  color: var(--lamp);
}

/* ---------- 备案脚注 ---------- */
.page-contact .contact-legal__line {
  margin: clamp(20px, 2.8vw, 30px) 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--pc-muted);
}

.page-contact .contact-legal__note {
  margin: 12px 0 0;
  max-width: 62ch;
  font-size: 13px;
  line-height: 1.82;
  color: var(--pc-muted);
}

/* ---------- 右侧固定目录 ---------- */
.page-contact .contact-aside {
  margin-top: clamp(44px, 6vw, 68px);
  min-width: 0;
}

@media (min-width: 1024px) {
  .page-contact .contact-aside {
    margin-top: clamp(48px, 7vw, 88px);
    position: sticky;
    top: calc(var(--topbar-h) + 32px);
    align-self: start;
  }
}

.page-contact .contact-toc__list {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-contact .contact-toc__link {
  display: block;
  padding: 8px 0;
  font-size: 13px;
  line-height: 1.5;
  color: var(--pc-muted);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 180ms var(--ease), border-color 180ms var(--ease);
}

.page-contact .contact-toc__link:hover {
  color: var(--white);
  border-bottom-color: var(--pulse);
}

/* ---------- 动效收敛 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-contact .intent-card,
  .page-contact .template,
  .page-contact .contact-toc__link {
    transition: none;
  }
}
</main>