.page-contact {
  --pc-gutter: clamp(18px, 5vw, 56px);
  color: var(--ink);
  background: var(--paper);
}

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

/* 面包屑 */
.page-contact .breadcrumbs {
  padding-block: 16px 2px;
  background: var(--paper);
}
.page-contact .breadcrumbs__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 0.8rem;
  color: var(--bluegray);
}
.page-contact .breadcrumbs__link {
  color: var(--sky);
  text-decoration: none;
}
.page-contact .breadcrumbs__link:hover {
  text-decoration: underline;
  text-underline-offset: 3px;
}
.page-contact .breadcrumbs__sep {
  color: var(--line-strong);
}
.page-contact .breadcrumbs__current {
  color: var(--ink);
  font-weight: 600;
}

/* 首屏分屏 */
.page-contact .coop-hero {
  padding-block: clamp(20px, 3vw, 34px) clamp(48px, 7vw, 92px);
  background:
    radial-gradient(880px 420px at 92% -12%, rgba(127, 182, 217, 0.34), rgba(127, 182, 217, 0) 72%),
    var(--paper);
}
.page-contact .coop-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(30px, 5vw, 52px);
  align-items: start;
}
.page-contact .coop-hero__left {
  min-width: 0;
}

.page-contact .eyebrow {
  margin: 0 0 14px;
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.24em;
  color: var(--sky);
}
.page-contact .display-title {
  margin: 0;
  font-size: clamp(2rem, 5.8vw, 3.4rem);
  font-weight: 900;
  line-height: 1.12;
  letter-spacing: -0.02em;
  color: var(--ink);
}
.page-contact .lede {
  margin: 18px 0 0;
  max-width: 48ch;
  font-size: clamp(0.98rem, 1.7vw, 1.06rem);
  line-height: 1.8;
  color: var(--ink-soft);
}

/* 合作卡片 */
.page-contact .coop-cards__title {
  margin: clamp(30px, 4vw, 44px) 0 0;
  padding-left: 12px;
  border-left: 3px solid var(--sky);
  font-size: clamp(1rem, 2vw, 1.14rem);
  font-weight: 800;
  letter-spacing: 0.01em;
  color: var(--ink);
}
.page-contact .coop-cards {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
  margin-top: 18px;
}
.page-contact .coop-card {
  margin: 0;
  padding: 20px 22px 22px;
  background: var(--warm-white);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-1);
  transition: transform 0.2s ease-out, box-shadow 0.2s ease-out;
}
.page-contact .coop-card:nth-child(1) {
  border-left: 6px solid var(--cloud);
  border-radius: 26px 8px 30px 12px;
}
.page-contact .coop-card:nth-child(2) {
  border-left: 6px solid var(--sky);
  border-radius: 10px 30px 12px 36px;
}
.page-contact .coop-card:nth-child(3) {
  border-left: 6px solid var(--orange);
  border-radius: 32px 12px 26px 8px;
}
.page-contact .coop-card:hover,
.page-contact .coop-card:focus-within {
  transform: translateY(-2px);
  box-shadow: var(--shadow-2);
}
.page-contact .coop-card__title {
  margin: 0 0 8px;
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--ink);
}
.page-contact .coop-card__text {
  margin: 0;
  font-size: 0.93rem;
  line-height: 1.74;
  color: var(--ink-soft);
}
.page-contact .coop-card__need {
  margin: 12px 0 0;
  padding-top: 10px;
  border-top: 1px dashed var(--line);
  font-size: 0.82rem;
  color: var(--bluegray);
}
.page-contact .coop-card__need span {
  margin-right: 8px;
  font-weight: 700;
  color: var(--print);
}

/* 联系面板 */
.page-contact .contact-panel {
  position: relative;
  overflow: hidden;
  padding: clamp(24px, 4vw, 34px);
  background: var(--ink);
  color: var(--paper);
  border: 2px solid var(--neon);
  border-radius: var(--radius-organic);
  box-shadow: var(--shadow-2);
}
.page-contact .contact-panel::before {
  content: "";
  position: absolute;
  right: -90px;
  bottom: -110px;
  width: 260px;
  height: 260px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(198, 242, 74, 0.2), rgba(198, 242, 74, 0) 70%);
  pointer-events: none;
}
.page-contact .contact-panel__eyebrow {
  margin: 0 0 10px;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.22em;
  color: var(--neon);
}
.page-contact .contact-panel__title {
  margin: 0 0 20px;
  font-size: clamp(1.12rem, 2.4vw, 1.36rem);
  font-weight: 800;
  line-height: 1.36;
  color: var(--warm-white);
}
.page-contact .contact-panel__list {
  display: grid;
  gap: 16px;
  margin: 0;
}
.page-contact .contact-panel__row {
  display: grid;
  gap: 4px;
}
.page-contact .contact-panel__row dt {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  color: var(--cloud);
}
.page-contact .contact-panel__row dd {
  margin: 0;
  font-size: 0.96rem;
  line-height: 1.55;
  color: var(--warm-white);
  overflow-wrap: anywhere;
}
.page-contact .contact-panel__row dd.is-mono {
  font-family: var(--font-mono);
  font-size: clamp(0.9rem, 2.6vw, 1.14rem);
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--neon);
}
.page-contact .contact-panel__note {
  margin: 22px 0 0;
  padding-top: 16px;
  border-top: 1px solid rgba(217, 227, 232, 0.28);
  font-size: 0.84rem;
  line-height: 1.72;
  color: var(--mist);
}

/* 章节通用 */
.page-contact .section {
  padding-block: clamp(46px, 7vw, 88px) 0;
}
.page-contact .chapter {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  margin-bottom: 14px;
}
.page-contact .chapter__index {
  padding-left: 12px;
  border-left: 2px solid var(--line-strong);
  font-family: var(--font-mono);
  font-size: 0.86rem;
  font-weight: 700;
  line-height: 1.2;
  color: var(--print);
}
.page-contact .chapter__title {
  margin: 0;
  font-size: clamp(1.42rem, 3.4vw, 2.06rem);
  font-weight: 800;
  line-height: 1.28;
  letter-spacing: -0.01em;
  color: var(--ink);
}
.page-contact .section__note {
  margin: 0;
  max-width: 58ch;
  font-size: 0.92rem;
  line-height: 1.78;
  color: var(--bluegray);
}

/* 图片容器 */
.page-contact .shot {
  margin: clamp(24px, 4vw, 36px) 0 0;
}
.page-contact .shot__frame {
  overflow: hidden;
  border-radius: var(--radius-organic);
  background: linear-gradient(135deg, var(--cloud), var(--mist) 62%, var(--paper-deep));
  box-shadow: var(--shadow-1);
}
.page-contact .shot__frame img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}
.page-contact .shot__caption {
  margin-top: 10px;
  padding-left: 12px;
  border-left: 2px solid var(--line-strong);
  font-size: 0.78rem;
  line-height: 1.66;
  color: var(--bluegray);
}

/* 流程 */
.page-contact .flow {
  list-style: none;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 24px;
  margin: clamp(28px, 4vw, 44px) 0 0;
  padding: 0;
}
.page-contact .flow__step {
  position: relative;
  padding-left: 50px;
}
.page-contact .flow__num {
  position: absolute;
  top: 0;
  left: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--ink);
  color: var(--neon);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 700;
  transition: transform 0.2s ease-out, background-color 0.2s ease-out;
}
.page-contact .flow__step:hover .flow__num {
  transform: scale(1.14);
  background: var(--sky);
  color: var(--warm-white);
}
.page-contact .flow__title {
  margin: 0 0 8px;
  font-size: 1rem;
  font-weight: 800;
  color: var(--ink);
}
.page-contact .flow__text {
  margin: 0;
  font-size: 0.89rem;
  line-height: 1.72;
  color: var(--ink-soft);
}
.page-contact .flow__meta {
  margin: 10px 0 0;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.04em;
  color: var(--print);
}

/* 对接渠道 */
.page-contact .channels {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
  margin-top: clamp(26px, 4vw, 40px);
}
.page-contact .channel {
  display: grid;
  align-content: start;
  gap: 10px;
  padding: 20px;
  background: var(--warm-white);
  border: 1px solid var(--line);
  border-radius: 22px 8px 26px 10px;
  transition: transform 0.2s ease-out, box-shadow 0.2s ease-out;
}
.page-contact .channel:nth-child(2) {
  border-radius: 8px 24px 10px 28px;
}
.page-contact .channel:nth-child(3) {
  border-radius: 26px 10px 22px 8px;
}
.page-contact .channel:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-1);
}
.page-contact .channel__kind {
  margin: 0;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  color: var(--sky);
}
.page-contact .channel__value {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(0.88rem, 1.8vw, 1rem);
  font-weight: 600;
  color: var(--print);
  overflow-wrap: anywhere;
}
.page-contact .channel__text {
  margin: 0;
  font-size: 0.87rem;
  line-height: 1.72;
  color: var(--ink-soft);
}

/* 来信 */
.page-contact .pitch {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 3vw, 34px);
  margin-top: clamp(26px, 4vw, 40px);
}
.page-contact .pitch__list {
  list-style: none;
  margin: 0;
  padding: 0;
}
.page-contact .pitch__item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  padding: 16px 0;
  border-bottom: 1px dashed var(--line);
}
.page-contact .pitch__item:first-child {
  padding-top: 0;
}
.page-contact .pitch__item:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}
.page-contact .pitch__num {
  padding-top: 2px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--print);
}
.page-contact .pitch__title {
  margin: 0 0 6px;
  font-size: 0.97rem;
  font-weight: 800;
  color: var(--ink);
}
.page-contact .pitch__text {
  margin: 0;
  font-size: 0.89rem;
  line-height: 1.74;
  color: var(--ink-soft);
}
.page-contact .pitch__side {
  padding: clamp(20px, 3vw, 28px);
  background: var(--paper-deep);
  border-top: 3px solid var(--sky);
  border-radius: 8px 30px 10px 34px;
}
.page-contact .pitch__side-title {
  margin: 0 0 16px;
  font-size: 0.98rem;
  font-weight: 800;
  color: var(--ink);
}
.page-contact .pitch__side-list {
  list-style: none;
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  font-size: 0.87rem;
  line-height: 1.7;
  color: var(--ink-soft);
}
.page-contact .pitch__side-list li {
  position: relative;
  padding-left: 18px;
}
.page-contact .pitch__side-list li::before {
  content: "";
  position: absolute;
  top: 0.62em;
  left: 0;
  width: 8px;
  height: 3px;
  border-radius: 2px;
  background: var(--sky);
}
.page-contact .pitch__links {
  margin: 18px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--line-strong);
  font-size: 0.83rem;
  line-height: 1.74;
  color: var(--bluegray);
}
.page-contact .pitch__links a {
  color: var(--sky);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}
.page-contact .pitch__links a:hover {
  color: var(--print);
}

/* 地域与备案收束 */
.page-contact .region {
  margin-top: clamp(48px, 7vw, 88px);
  padding-block: clamp(32px, 5vw, 56px);
  background: linear-gradient(100deg, var(--mist) 0%, var(--warm-white) 62%, var(--paper) 100%);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.page-contact .region__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 22px;
  align-items: start;
}
.page-contact .region__annotation {
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  color: var(--print);
  margin: 0;
}
.page-contact .region__title {
  margin: 0 0 12px;
  font-size: clamp(1.3rem, 3vw, 1.7rem);
  font-weight: 800;
  line-height: 1.32;
  color: var(--ink);
}
.page-contact .region__text {
  margin: 0;
  max-width: 52ch;
  font-size: 0.9rem;
  line-height: 1.8;
  color: var(--ink-soft);
}
.page-contact .region__facts {
  list-style: none;
  display: grid;
  gap: 8px;
  margin: 16px 0 0;
  padding: 0;
  font-size: 0.85rem;
  color: var(--ink-soft);
}
.page-contact .region__facts li {
  position: relative;
  padding-left: 16px;
}
.page-contact .region__facts li::before {
  content: "";
  position: absolute;
  top: 0.62em;
  left: 0;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--sky);
}
.page-contact .region__shot {
  margin: 0;
}

/* 平板与桌面 */
@media (min-width: 780px) {
  .page-contact .flow {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 22px;
  }
  .page-contact .flow__step {
    padding-left: 0;
    padding-top: 50px;
  }
  .page-contact .flow__step::before {
    content: "";
    position: absolute;
    top: 16px;
    left: 38px;
    right: -22px;
    border-top: 1px dashed var(--line-strong);
  }
  .page-contact .flow__step:last-child::before {
    right: auto;
    width: 24px;
  }
}

@media (min-width: 860px) {
  .page-contact .pitch {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 0.7fr);
    align-items: start;
  }
}

@media (min-width: 940px) {
  .page-contact .coop-hero__grid {
    grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr);
  }
  .page-contact .channels {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-contact .region__inner {
    grid-template-columns: auto minmax(0, 1.1fr) minmax(0, 0.9fr);
    gap: 32px;
    align-items: center;
  }
  .page-contact .region__annotation {
    writing-mode: vertical-rl;
    letter-spacing: 0.24em;
  }
}

@media (min-width: 1080px) {
  .page-contact .coop-card:nth-child(2) {
    margin-left: 30px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .coop-card,
  .page-contact .channel,
  .page-contact .flow__num {
    transition: none;
  }
  .page-contact .coop-card:hover,
  .page-contact .channel:hover,
  .page-contact .flow__step:hover .flow__num {
    transform: none;
  }
}
<<<END>>>