.page-contact {
  overflow-x: clip;
  padding-bottom: 0;
}

.page-contact .breadcrumbs {
  padding-top: 20px;
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  padding: clamp(24px, 4vw, 56px) 0 clamp(32px, 5vw, 72px);
}

.page-contact .contact-hero::after {
  content: "";
  position: absolute;
  top: clamp(0px, 2vw, 24px);
  right: -14%;
  width: clamp(220px, 46vw, 600px);
  height: clamp(170px, 28vw, 300px);
  background: linear-gradient(135deg, var(--track-600), var(--cyan-400) 72%);
  opacity: 0.14;
  clip-path: polygon(24% 0, 100% 0, 100% 72%, 0 100%);
  pointer-events: none;
  z-index: 0;
}

.page-contact .contact-hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 26px;
}

.page-contact .contact-hero__lead .lede {
  max-width: 44ch;
}

.page-contact .contact-quick {
  border: 1px solid var(--ink-700);
  border-radius: var(--radius-lg);
  background: var(--ink-850);
  padding: 20px 22px 22px;
}

.page-contact .contact-quick__top {
  margin: 0 0 12px;
  font-size: 12px;
  line-height: 1.4;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--cyan-400);
  font-weight: 700;
}

.page-contact .contact-quick__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
}

.page-contact .contact-quick__list li {
  display: grid;
  gap: 4px;
  padding: 12px 0;
  border-top: 1px solid var(--ink-700);
}

.page-contact .contact-quick__list li:first-child {
  border-top: 0;
  padding-top: 4px;
}

.page-contact .contact-quick__what {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-100);
}

.page-contact .contact-quick__go {
  justify-self: start;
  font-size: 13px;
  color: var(--track-400);
  text-decoration: none;
  border-bottom: 1px solid var(--cyan-400);
  padding-bottom: 1px;
}

.page-contact .contact-quick__go:hover {
  color: var(--cyan-400);
}

/* ---------- 章节通用 ---------- */
.page-contact .contact-section {
  position: relative;
  padding: clamp(36px, 6vw, 76px) 0;
}

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

.page-contact .contact-section__head {
  max-width: 64ch;
  margin-bottom: clamp(22px, 3.5vw, 38px);
}

.page-contact .contact-section__title {
  margin: 12px 0 0;
  font-size: clamp(25px, 4vw, 38px);
  line-height: 1.15;
  letter-spacing: -0.02em;
  font-weight: 900;
  color: var(--text-100);
}

.page-contact .contact-section__title::before {
  content: "";
  display: block;
  width: 54px;
  height: 3px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--track-400), var(--cyan-400));
  margin-bottom: 14px;
}

.page-contact .contact-section__lede {
  margin: 14px 0 0;
  font-size: 16px;
  line-height: 1.75;
  color: var(--text-300);
  max-width: 46ch;
}

/* ---------- 三条通道 ---------- */
.page-contact .contact-paths__grid {
  display: grid;
  gap: 26px;
}

.page-contact .contact-paths__figure {
  margin: 0;
  position: relative;
  border-radius: var(--radius-lg);
  border: 1px solid var(--ink-700);
  background: var(--ink-850);
  overflow: hidden;
  aspect-ratio: 4 / 3;
}

.page-contact .contact-paths__figure img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-contact .contact-paths__figure figcaption {
  position: absolute;
  left: 16px;
  bottom: 14px;
  padding: 6px 12px;
  border-radius: var(--radius-pill);
  background: rgba(4, 18, 27, 0.78);
  color: var(--cyan-400);
  font-size: 11px;
  letter-spacing: 0.12em;
}

.page-contact .path-list {
  display: grid;
  gap: 16px;
}

.page-contact .path-card {
  position: relative;
  display: grid;
  gap: 10px;
  padding: 22px clamp(18px, 3vw, 28px);
  border: 1px solid var(--ink-700);
  border-radius: var(--radius-md);
  background: var(--ink-850);
  transition: transform 220ms ease, border-color 220ms ease;
}

.page-contact .path-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 20px;
  bottom: 20px;
  width: 3px;
  border-radius: 0 3px 3px 0;
  background: var(--track-600);
  transition: background 220ms ease;
}

.page-contact .path-card:hover,
.page-contact .path-card:focus-within {
  transform: translateX(4px);
  border-color: var(--cyan-400);
}

.page-contact .path-card:hover::before,
.page-contact .path-card:focus-within::before {
  background: var(--cyan-400);
}

.page-contact .path-card__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.page-contact .path-card__index {
  font-size: 22px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--track-400);
}

.page-contact .path-card__title {
  margin: 0;
  font-size: clamp(18px, 2.4vw, 22px);
  line-height: 1.3;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--text-100);
}

.page-contact .path-card__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--text-300);
}

.page-contact .path-card__meta {
  margin: 0;
  font-size: 13px;
  line-height: 1.6;
  color: var(--text-300);
}

.page-contact .path-card__meta .mono {
  color: var(--cyan-400);
  letter-spacing: 0.1em;
  margin-right: 8px;
}

.page-contact .path-card__more {
  justify-self: start;
  margin-top: 2px;
  font-size: 14px;
  color: var(--track-400);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  padding-bottom: 2px;
}

.page-contact .path-card__more:hover {
  border-bottom-color: var(--cyan-400);
  color: var(--cyan-400);
}

.page-contact .path-card,
.page-contact .contact-section[id] {
  scroll-margin-top: calc(var(--bar-h) + 20px);
}

/* ---------- 材料清单 ---------- */
.page-contact .prep {
  border-radius: var(--radius-lg);
  border: 1px solid var(--ink-700);
  background: var(--ink-850);
  padding: clamp(22px, 4vw, 44px);
}

.page-contact .prep__grid {
  display: grid;
  gap: 22px;
}

.page-contact .prep__aside .contact-section__lede {
  max-width: 30ch;
}

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

.page-contact .check-item {
  display: grid;
  grid-template-columns: 22px minmax(0, 1fr);
  gap: 14px;
  padding: 14px 0;
  border-top: 1px dashed var(--ink-700);
}

.page-contact .check-item:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-contact .check-item__box {
  width: 22px;
  height: 22px;
  margin-top: 3px;
  border-radius: 7px;
  border: 2px solid var(--track-600);
  display: grid;
  place-items: center;
  flex: none;
}

.page-contact .check-item__box::after {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 2px;
  background: var(--track-400);
}

.page-contact .check-item__title {
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px;
  font-size: 16px;
  font-weight: 700;
  color: var(--text-100);
}

.page-contact .check-item__title .mono {
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--track-400);
}

.page-contact .check-item__desc {
  margin: 5px 0 0;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--text-300);
}

/* ---------- 响应流程 ---------- */
.page-contact .flow {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
}

.page-contact .flow__step {
  position: relative;
  padding: 0 0 26px 32px;
  border-left: 2px dashed var(--ink-700);
}

.page-contact .flow__step:last-child {
  padding-bottom: 0;
  border-left-color: transparent;
}

.page-contact .flow__step::before {
  content: "";
  position: absolute;
  left: -8px;
  top: 4px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--track-600);
  box-shadow: 0 0 0 4px var(--ink-950);
}

.page-contact .flow__step:last-child::before {
  background: var(--flare-500);
}

.page-contact .flow__index {
  display: block;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--cyan-400);
  margin-bottom: 6px;
}

.page-contact .flow__title {
  margin: 0 0 6px;
  font-size: clamp(17px, 2.2vw, 20px);
  font-weight: 800;
  color: var(--text-100);
  letter-spacing: -0.01em;
}

.page-contact .flow__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--text-300);
  max-width: 46ch;
}

/* ---------- 合作方向 ---------- */
.page-contact .partner-list {
  display: grid;
}

.page-contact .partner-row {
  display: grid;
  gap: 8px;
  padding: 22px 0;
  border-top: 1px solid var(--ink-700);
}

.page-contact .partner-row:last-child {
  border-bottom: 1px solid var(--ink-700);
}

.page-contact .partner-row__tag {
  margin: 0;
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--track-400);
  font-weight: 700;
}

.page-contact .partner-row__title {
  margin: 0;
  font-size: clamp(18px, 2.4vw, 22px);
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--text-100);
}

.page-contact .partner-row__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--text-300);
  max-width: 54ch;
}

/* ---------- 渠道信息卡 ---------- */
.page-contact .contact-card {
  position: relative;
  border-radius: var(--radius-lg);
  background: linear-gradient(140deg, var(--track-600), var(--track-400));
  color: var(--ink-950);
  padding: clamp(22px, 4vw, 42px);
  display: grid;
  gap: 24px;
  overflow: hidden;
}

.page-contact .contact-card__eyebrow {
  margin: 0 0 8px;
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  font-weight: 800;
  color: rgba(4, 18, 27, 0.62);
}

.page-contact .contact-card__title {
  margin: 0 0 20px;
  font-size: clamp(22px, 3.4vw, 32px);
  line-height: 1.18;
  font-weight: 900;
  letter-spacing: -0.02em;
  color: var(--ink-950);
}

.page-contact .channel {
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-contact .channel__row {
  display: grid;
  gap: 3px;
  padding-bottom: 12px;
  border-bottom: 1px solid rgba(4, 18, 27, 0.2);
}

.page-contact .channel__row:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-contact .channel__label {
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  font-weight: 800;
  color: rgba(4, 18, 27, 0.6);
}

.page-contact .channel__value {
  margin: 0;
  font-size: clamp(16px, 2.4vw, 21px);
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--ink-950);
  overflow-wrap: anywhere;
}

.page-contact .channel__note {
  margin: 18px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: rgba(4, 18, 27, 0.76);
  max-width: 46ch;
}

.page-contact .contact-card__figure {
  margin: 0;
  border-radius: var(--radius-md);
  overflow: hidden;
  min-height: 160px;
  background: rgba(4, 18, 27, 0.16);
}

.page-contact .contact-card__figure img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ---------- 站点归属 ---------- */
.page-contact .filing {
  border-top: 1px solid var(--ink-700);
  padding-top: 26px;
  display: grid;
  gap: 10px;
}

.page-contact .filing .eyebrow {
  margin: 0;
}

.page-contact .filing__line {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--text-300);
  max-width: 62ch;
}

.page-contact .filing__line .mono {
  color: var(--text-100);
  letter-spacing: 0.02em;
}

/* ---------- 断点 ---------- */
@media (min-width: 720px) {
  .page-contact .contact-card {
    grid-template-columns: minmax(0, 1fr);
  }

  .page-contact .contact-card__figure {
    min-height: 200px;
  }
}

@media (min-width: 900px) {
  .page-contact .contact-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    align-items: end;
    gap: clamp(32px, 5vw, 72px);
  }

  .page-contact .prep__grid {
    grid-template-columns: minmax(0, 4fr) minmax(0, 7fr);
    gap: clamp(28px, 5vw, 64px);
    align-items: start;
  }

  .page-contact .prep__aside {
    position: sticky;
    top: calc(var(--bar-h) + 24px);
  }

  .page-contact .contact-card {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    align-items: stretch;
    gap: clamp(28px, 4vw, 52px);
  }

  .page-contact .contact-card__figure {
    min-height: 100%;
  }

  .page-contact .partner-row {
    grid-template-columns: 104px minmax(0, 5fr) minmax(0, 6fr);
    gap: 24px;
    align-items: start;
    padding: 26px 0;
  }

  .page-contact .partner-row__tag {
    padding-top: 6px;
  }

  .page-contact .flow {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: clamp(28px, 4vw, 56px);
  }

  .page-contact .flow__step {
    padding-bottom: 30px;
  }

  .page-contact .flow__step:nth-last-child(-n + 2) {
    padding-bottom: 0;
  }
}

@media (min-width: 1024px) {
  .page-contact .contact-paths__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: clamp(32px, 5vw, 64px);
    align-items: start;
  }

  .page-contact .contact-paths__figure {
    aspect-ratio: 3 / 4;
  }

  .page-contact .path-list {
    gap: 18px;
  }
}

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

  .page-contact .path-card:hover,
  .page-contact .path-card:focus-within {
    transform: none;
  }
}
<<<END>>>