/* ===== 商务合作页 ===== */
.page-contact {
  --co-line: rgba(243, 247, 245, .14);
  --co-line-strong: rgba(243, 247, 245, .3);
  --co-text-dim: rgba(243, 247, 245, .72);
  --co-paper-text: rgba(11, 46, 38, .76);
  background: var(--ink-900);
  color: var(--paper);
  font-family: var(--font-sans);
  overflow-x: hidden;
}

.page-contact img {
  display: block;
  max-width: 100%;
  height: auto;
}

.page-contact .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: var(--space-3);
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--mist);
}

.page-contact .breadcrumb a {
  color: var(--mist);
  text-decoration: none;
}

.page-contact .breadcrumb a:hover {
  color: var(--cyan);
}

/* ---- 首屏框景 ---- */
.page-contact .co-hero {
  position: relative;
  padding: var(--space-4) 0 var(--space-6);
  background:
    radial-gradient(120% 96% at 88% 0%, rgba(14, 59, 74, .8) 0%, rgba(11, 46, 38, 0) 62%),
    radial-gradient(90% 70% at 0% 100%, rgba(107, 31, 58, .32) 0%, rgba(11, 46, 38, 0) 70%),
    var(--ink-800);
}

.page-contact .co-hero__frame {
  position: relative;
  padding: calc(var(--space-4) + 12px) var(--space-3) var(--space-4);
  border: 1px solid var(--co-line);
  border-radius: 64px var(--radius-lg) var(--radius-lg) var(--radius-lg);
  background: linear-gradient(158deg, rgba(8, 32, 27, .72) 0%, rgba(11, 46, 38, .18) 100%);
}

.page-contact .co-hero__frame::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 12px;
  border-radius: 64px var(--radius-lg) 0 0;
  background-image: repeating-linear-gradient(90deg, rgba(43, 232, 192, .5) 0 1px, transparent 1px 18px);
  opacity: .9;
}

.page-contact .co-hero__grid {
  display: grid;
  gap: var(--space-4);
}

.page-contact .co-hero__title {
  margin: var(--space-2) 0 0;
  font-size: clamp(28px, 7.4vw, 54px);
  font-weight: 700;
  line-height: 1.16;
  letter-spacing: -.01em;
  color: var(--white);
}

.page-contact .co-hero__lede {
  margin: var(--space-3) 0 0;
  max-width: 40ch;
  font-size: 16px;
  line-height: 1.75;
  color: var(--co-text-dim);
}

.page-contact .co-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-4);
}

.page-contact .co-hero__aside-label {
  margin: 0 0 var(--space-2);
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--mist);
}

.page-contact .co-hero__facts {
  display: grid;
  gap: var(--space-2);
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .co-hero__facts li {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 10px 0 10px var(--space-2);
  border-left: 1px solid var(--line-cyan);
}

.page-contact .co-hero__num {
  font-family: var(--font-num);
  font-size: clamp(30px, 8vw, 42px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -.02em;
  color: var(--cyan);
  font-variant-numeric: tabular-nums;
}

.page-contact .co-hero__unit {
  font-size: 13px;
  line-height: 1.5;
  color: var(--co-text-dim);
}

/* ---- 通用小节头 ---- */
.page-contact .co-head {
  max-width: 42ch;
  margin-bottom: var(--space-5);
}

.page-contact .co-head__title {
  margin: var(--space-2) 0 0;
  font-size: clamp(24px, 5.6vw, 40px);
  font-weight: 700;
  line-height: 1.22;
  color: var(--white);
}

.page-contact .co-head__note {
  margin: var(--space-2) 0 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--co-text-dim);
}

/* ---- 合作方向 ---- */
.page-contact .co-directions {
  padding: var(--space-6) 0;
  background: var(--ink-900);
}

.page-contact .co-directions__grid {
  display: grid;
  gap: var(--space-4);
}

.page-contact .co-card {
  position: relative;
  padding: var(--space-4) var(--space-3) var(--space-3);
  border-radius: var(--radius-lg);
  color: var(--paper);
  overflow: hidden;
}

.page-contact .co-card::after {
  content: "";
  position: absolute;
  right: -40px;
  bottom: -60px;
  width: 180px;
  height: 180px;
  border-radius: 46% 54% 62% 38% / 52% 44% 56% 48%;
  background: rgba(255, 255, 255, .06);
  pointer-events: none;
}

.page-contact .co-card--content {
  background: linear-gradient(162deg, var(--wine-800) 0%, var(--wine-600) 130%);
}

.page-contact .co-card--data {
  background: linear-gradient(162deg, var(--teal-800) 0%, var(--teal-600) 132%);
}

.page-contact .co-card--channel {
  background: linear-gradient(162deg, var(--ink-700) 0%, var(--ink-800) 130%);
  border-left: 3px solid var(--orange);
}

.page-contact .co-card__index {
  display: block;
  font-family: var(--font-num);
  font-size: 15px;
  letter-spacing: .16em;
  color: var(--cyan);
  font-variant-numeric: tabular-nums;
}

.page-contact .co-card__title {
  margin: var(--space-2) 0 0;
  font-size: clamp(21px, 4.6vw, 27px);
  font-weight: 700;
  line-height: 1.28;
  color: var(--white);
}

.page-contact .co-card__for {
  margin: 10px 0 0;
  font-size: 12.5px;
  letter-spacing: .05em;
  color: rgba(243, 247, 245, .7);
}

.page-contact .co-card__body {
  margin: var(--space-3) 0 0;
  font-size: 15px;
  line-height: 1.78;
  color: rgba(243, 247, 245, .9);
}

.page-contact .co-card__more {
  margin-top: var(--space-3);
  padding-top: var(--space-2);
  border-top: 1px solid rgba(243, 247, 245, .2);
}

.page-contact .co-card__more summary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--cyan);
  cursor: pointer;
  list-style: none;
}

.page-contact .co-card__more summary::-webkit-details-marker {
  display: none;
}

.page-contact .co-card__more summary::after {
  content: "+";
  font-family: var(--font-num);
  font-size: 16px;
  line-height: 1;
}

.page-contact .co-card__more[open] summary::after {
  content: "−";
}

.page-contact .co-card__more summary:focus-visible {
  outline: 2px solid var(--orange);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

.page-contact .co-card__more p {
  margin: var(--space-2) 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: rgba(243, 247, 245, .84);
}

.page-contact .co-media {
  margin: 0;
}

.page-contact .co-media img {
  width: 100%;
  border-radius: var(--radius-md);
  object-fit: cover;
  border: 1px solid var(--co-line);
}

.page-contact .co-media--directions img {
  aspect-ratio: 3 / 2;
}

.page-contact .co-media__caption {
  margin-top: var(--space-2);
  font-size: 12.5px;
  line-height: 1.65;
  color: var(--mist);
}

/* ---- 联系阶梯 ---- */
.page-contact .co-contact {
  padding: var(--space-6) 0;
  background: var(--paper);
  color: var(--ink-800);
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.page-contact .co-head--on-paper .co-head__title {
  color: var(--ink-950);
}

.page-contact .co-head--on-paper .co-head__note {
  color: var(--co-paper-text);
}

.page-contact .co-contact .eyebrow {
  color: var(--teal-800);
}

.page-contact .co-contact__grid {
  display: grid;
  gap: var(--space-5);
}

.page-contact .co-sub {
  margin: 0 0 var(--space-1);
  font-size: 17px;
  font-weight: 700;
  color: var(--ink-950);
}

.page-contact .co-contact__text {
  margin: 0 0 var(--space-3);
  font-size: 15px;
  line-height: 1.8;
  color: var(--co-paper-text);
}

.page-contact .co-media--channels img {
  aspect-ratio: 2 / 1;
}

.page-contact .co-media--channels .co-media__caption {
  color: rgba(11, 46, 38, .55);
}

.page-contact .co-ladder {
  position: relative;
  display: grid;
  gap: var(--space-3);
  margin: 0;
  padding: 0 0 0 40px;
  list-style: none;
}

.page-contact .co-ladder::before {
  content: "";
  position: absolute;
  left: 12px;
  top: 14px;
  bottom: 14px;
  width: 1px;
  background: linear-gradient(180deg, var(--cyan) 0%, var(--teal-600) 52%, var(--orange) 100%);
  opacity: .75;
}

.page-contact .co-ladder__item {
  position: relative;
  padding: var(--space-3);
  background: var(--white);
  border-radius: var(--radius-md);
  box-shadow: 0 10px 30px rgba(11, 46, 38, .07);
}

.page-contact .co-ladder__item::before {
  content: "";
  position: absolute;
  left: -34px;
  top: 26px;
  width: 13px;
  height: 13px;
  border-radius: 50%;
  background: var(--white);
  border: 2px solid var(--cyan);
}

.page-contact .co-ladder__item:nth-child(2)::before {
  border-color: var(--teal-600);
}

.page-contact .co-ladder__item:nth-child(3)::before {
  border-color: var(--orange);
}

.page-contact .co-ladder__step {
  display: block;
  font-family: var(--font-num);
  font-size: 13px;
  letter-spacing: .18em;
  color: var(--mist);
  font-variant-numeric: tabular-nums;
}

.page-contact .co-ladder__label {
  margin: 6px 0 0;
  font-size: 13px;
  letter-spacing: .1em;
  color: var(--teal-800);
}

.page-contact .co-ladder__value {
  margin: 8px 0 0;
  font-size: 17px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--ink-950);
  word-break: break-word;
}

.page-contact .co-ladder__value--mail {
  font-family: var(--font-num);
  font-size: clamp(18px, 4.6vw, 24px);
  letter-spacing: .01em;
}

.page-contact .co-ladder__value--tel {
  font-family: var(--font-num);
  font-size: clamp(30px, 9vw, 44px);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -.01em;
  color: var(--orange);
  font-variant-numeric: tabular-nums;
}

.page-contact .co-ladder__hint {
  margin: 10px 0 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--co-paper-text);
}

/* ---- 比分反馈 ---- */
.page-contact .co-report {
  padding: var(--space-6) 0;
  background: linear-gradient(148deg, var(--teal-800) 0%, var(--ink-900) 82%);
}

.page-contact .co-report__grid {
  display: grid;
  gap: var(--space-5);
}

.page-contact .co-report__title {
  margin: var(--space-2) 0 0;
  font-size: clamp(23px, 5.4vw, 36px);
  font-weight: 700;
  line-height: 1.26;
  color: var(--white);
}

.page-contact .co-report__lede {
  margin: var(--space-3) 0 0;
  max-width: 38ch;
  font-size: 15px;
  line-height: 1.78;
  color: var(--co-text-dim);
}

.page-contact .co-report__list {
  display: grid;
  gap: var(--space-2);
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .co-report__item {
  padding: var(--space-3);
  border: 1px solid var(--co-line);
  border-radius: var(--radius-md);
  background: rgba(8, 32, 27, .42);
}

.page-contact .co-report__no {
  font-family: var(--font-num);
  font-size: 15px;
  letter-spacing: .16em;
  color: var(--cyan);
  font-variant-numeric: tabular-nums;
}

.page-contact .co-report__item-title {
  margin: 8px 0 0;
  font-size: 16px;
  font-weight: 700;
  color: var(--white);
}

.page-contact .co-report__item p {
  margin: 8px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--co-text-dim);
}

.page-contact .co-report__template {
  margin-top: var(--space-5);
  padding: var(--space-3) var(--space-3) var(--space-3) calc(var(--space-3) + 4px);
  border-left: 3px solid var(--amber);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  background: rgba(5, 23, 19, .6);
}

.page-contact .co-report__template-label {
  margin: 0;
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--amber);
}

.page-contact .co-report__template-body {
  margin: var(--space-2) 0 0;
  font-size: 14.5px;
  line-height: 1.95;
  color: rgba(243, 247, 245, .92);
}

/* ---- 推进节奏 ---- */
.page-contact .co-flow {
  padding: var(--space-6) 0 var(--space-7);
  background: var(--ink-800);
}

.page-contact .co-flow__list {
  display: grid;
  gap: var(--space-4);
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .co-flow__item {
  position: relative;
  padding: var(--space-4) 0 0;
  border-top: 1px solid var(--co-line-strong);
  background-image: repeating-linear-gradient(90deg, var(--co-line) 0 1px, transparent 1px 14px);
  background-size: 100% 6px;
  background-repeat: no-repeat;
  background-position: left 1px;
}

.page-contact .co-flow__item::before {
  content: "";
  position: absolute;
  top: -5px;
  left: 0;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--orange);
}

.page-contact .co-flow__no {
  display: block;
  font-family: var(--font-num);
  font-size: 34px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: -.01em;
  color: var(--cyan);
  font-variant-numeric: tabular-nums;
}

.page-contact .co-flow__title {
  margin: var(--space-2) 0 0;
  font-size: 18px;
  font-weight: 700;
  color: var(--white);
}

.page-contact .co-flow__item p {
  margin: 10px 0 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--co-text-dim);
}

.page-contact .co-flow__foot {
  margin: var(--space-5) 0 0;
  padding-top: var(--space-3);
  border-top: 1px solid var(--co-line);
  font-size: 14px;
  line-height: 1.85;
  color: var(--co-text-dim);
}

.page-contact .co-flow__foot a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(43, 232, 192, .35);
}

.page-contact .co-flow__foot a:hover {
  color: var(--white);
  border-bottom-color: var(--white);
}

/* ---- 平板及以上 ---- */
@media (min-width: 720px) {
  .page-contact .co-report__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    align-items: stretch;
  }

  .page-contact .co-ladder__item:nth-child(1) {
    margin-right: 22%;
  }

  .page-contact .co-ladder__item:nth-child(2) {
    margin-right: 11%;
  }

  .page-contact .co-flow__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--space-5) var(--space-4);
  }
}

/* ---- 桌面 ---- */
@media (min-width: 960px) {
  .page-contact .co-hero {
    padding: var(--space-5) 0 var(--space-7);
  }

  .page-contact .co-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    gap: var(--space-6);
    align-items: end;
  }

  .page-contact .co-hero__frame {
    padding: calc(var(--space-5) + 10px) var(--space-5) var(--space-5);
  }

  .page-contact .co-head {
    margin-bottom: var(--space-6);
  }

  .page-contact .co-directions {
    padding: var(--space-7) 0;
  }

  .page-contact .co-directions__grid {
    grid-template-columns: repeat(12, minmax(0, 1fr));
    grid-template-areas:
      "a a a a a b b b b b b b"
      "f f f f f c c c c c c c";
    gap: var(--space-6) var(--space-4);
    align-items: start;
  }

  .page-contact .co-card--content { grid-area: a; }
  .page-contact .co-card--data { grid-area: b; margin-top: var(--space-6); }
  .page-contact .co-card--channel { grid-area: c; }
  .page-contact .co-media--directions { grid-area: f; }

  .page-contact .co-contact {
    padding: var(--space-7) 0;
  }

  .page-contact .co-contact__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
    gap: var(--space-7);
    align-items: start;
  }

  .page-contact .co-report {
    padding: var(--space-7) 0;
  }

  .page-contact .co-report__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: var(--space-6);
    align-items: start;
  }

  .page-contact .co-report__template {
    margin-top: var(--space-6);
    padding: var(--space-4) var(--space-4) var(--space-4) var(--space-5);
  }

  .page-contact .co-flow {
    padding: var(--space-7) 0 var(--space-7);
  }

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

@media (prefers-reduced-motion: reduce) {
  .page-contact .co-card,
  .page-contact .co-flow__item {
    transition: none;
  }
}
<<<END>>>