.page-contact {
  --cc-radius: calc(var(--sb-r) + 6px);
  --cc-gap: clamp(22px, 4vw, 46px);
}

.page-contact [id] {
  scroll-margin-top: 104px;
}

/* ---------- 面包屑 ---------- */
.page-contact .sb-breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding: 22px 0 0;
  font-size: 13px;
  color: var(--sb-stone);
}
.page-contact .sb-breadcrumb a {
  color: var(--sb-stone);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .2s var(--sb-ease), border-color .2s var(--sb-ease);
}
.page-contact .sb-breadcrumb a:hover {
  color: var(--sb-orange);
  border-bottom-color: var(--sb-orange);
}

/* ---------- 首屏 ---------- */
.page-contact .cc-hero {
  padding-block: clamp(24px, 4vw, 46px) clamp(34px, 6vw, 68px);
}
.page-contact .cc-hero__grid {
  display: grid;
  gap: 30px;
  align-items: center;
}
.page-contact .cc-hero__copy h1 {
  margin: 12px 0 18px;
  font-size: clamp(30px, 6.4vw, 52px);
  line-height: 1.18;
  letter-spacing: -.02em;
  color: var(--sb-blue);
}
.page-contact .cc-hero__lead {
  margin: 0;
  max-width: 54ch;
  font-size: 16.5px;
  line-height: 1.8;
  color: var(--sb-ink);
}
.page-contact .cc-hero__jump {
  list-style: none;
  margin: 28px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.page-contact .cc-jump {
  display: inline-block;
  padding: 9px 16px;
  border-radius: 999px;
  border: 1px solid var(--sb-line-strong);
  background: var(--sb-paper);
  color: var(--sb-blue);
  font-size: 14px;
  text-decoration: none;
  transition: background .2s var(--sb-ease), color .2s var(--sb-ease), border-color .2s var(--sb-ease);
}
.page-contact .cc-jump:hover,
.page-contact .cc-jump:focus-visible {
  background: var(--sb-blue);
  border-color: var(--sb-blue);
  color: var(--sb-warm);
}

.page-contact .cc-hero__figure {
  position: relative;
  margin: 0;
  border-radius: var(--cc-radius);
  overflow: hidden;
  border: 1px solid var(--sb-line-strong);
  background: var(--sb-blue);
}
.page-contact .cc-hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}
.page-contact .cc-hero__figure::after {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 9px;
  background: linear-gradient(180deg, var(--sb-orange), var(--sb-clay) 48%, var(--sb-moss));
}

@media (min-width: 900px) {
  .page-contact .cc-hero__grid {
    grid-template-columns: minmax(0, 1.06fr) minmax(0, .94fr);
    gap: 48px;
  }
}

/* ---------- 通用区块标题 ---------- */
.page-contact .cc-section-head {
  max-width: 62ch;
  margin-bottom: var(--cc-gap);
}
.page-contact .cc-section-head h2 {
  margin: 10px 0 12px;
  font-size: clamp(24px, 4.4vw, 38px);
  line-height: 1.28;
  letter-spacing: -.02em;
  color: var(--sb-blue);
}
.page-contact .cc-section-head p {
  margin: 0;
  font-size: 16px;
  line-height: 1.75;
  color: var(--sb-stone);
}

/* ---------- 四类合作方向 ---------- */
.page-contact .cc-lanes {
  padding-block: clamp(30px, 5vw, 60px);
}
.page-contact .cc-lanes__grid {
  display: grid;
  gap: 16px;
}
.page-contact .cc-lane {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 24px 18px 22px;
  background: var(--sb-paper);
  border: 1px solid var(--sb-line);
  border-radius: var(--cc-radius);
  overflow: hidden;
  outline: none;
  transition: transform .26s var(--sb-ease), border-color .26s var(--sb-ease), box-shadow .26s var(--sb-ease);
}
.page-contact .cc-lane::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 7px;
  background: var(--sb-moss);
  opacity: .5;
  transition: height .26s var(--sb-ease), opacity .26s var(--sb-ease);
}
.page-contact .cc-lane:nth-child(2)::before { background: var(--sb-clay); }
.page-contact .cc-lane:nth-child(3)::before { background: var(--sb-green); }
.page-contact .cc-lane:nth-child(4)::before { background: var(--sb-amber); }
.page-contact .cc-lane:hover,
.page-contact .cc-lane:focus-visible {
  transform: translateY(-4px);
  border-color: var(--sb-line-strong);
  box-shadow: 0 14px 30px -22px rgba(16, 35, 63, .55);
}
.page-contact .cc-lane:hover::before,
.page-contact .cc-lane:focus-visible::before {
  height: 14px;
  opacity: 1;
}
.page-contact .cc-lane__plan {
  width: 100%;
  max-width: 132px;
  height: auto;
  color: var(--sb-line-strong);
  transition: color .26s var(--sb-ease);
}
.page-contact .cc-lane:hover .cc-lane__plan,
.page-contact .cc-lane:focus-visible .cc-lane__plan {
  color: var(--sb-orange);
}
.page-contact .cc-lane__idx {
  margin: 0;
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--sb-clay);
}
.page-contact .cc-lane__title {
  margin: 0;
  font-size: 19px;
  font-weight: 800;
  letter-spacing: -.01em;
  color: var(--sb-blue);
}
.page-contact .cc-lane__line {
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--sb-ink);
}
.page-contact .cc-lane__label {
  display: block;
  margin-bottom: 2px;
  font-family: var(--sb-font-mono);
  font-size: 11.5px;
  letter-spacing: .12em;
  color: var(--sb-moss);
}

@media (min-width: 680px) {
  .page-contact .cc-lanes__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (min-width: 1120px) {
  .page-contact .cc-lanes__grid { grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 18px; }
}

/* ---------- 四步流程 ---------- */
.page-contact .cc-flow-sec {
  padding-block: clamp(30px, 5vw, 60px);
}
.page-contact .cc-flow {
  display: grid;
  gap: 14px;
}
.page-contact .cc-step {
  background: var(--sb-warm);
  border: 1px solid var(--sb-line);
  border-radius: var(--cc-radius);
  overflow: hidden;
}
.page-contact .cc-step > summary {
  position: relative;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 10px;
  padding: 18px 18px 16px;
  border-top: 6px solid var(--sb-clay);
  cursor: pointer;
  list-style: none;
  transition: border-color .22s var(--sb-ease), background .22s var(--sb-ease);
}
.page-contact .cc-step > summary::-webkit-details-marker { display: none; }
.page-contact .cc-step[open] > summary {
  border-top-color: var(--sb-orange);
  background: var(--sb-paper);
}
.page-contact .cc-step__idx {
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--sb-clay);
}
.page-contact .cc-step__title {
  font-size: 17px;
  font-weight: 800;
  color: var(--sb-blue);
}
.page-contact .cc-step__mark {
  width: 22px;
  height: 22px;
  flex: none;
  border-radius: 50%;
  border: 1px solid var(--sb-line-strong);
  position: relative;
  transition: border-color .22s var(--sb-ease);
}
.page-contact .cc-step[open] .cc-step__mark { border-color: var(--sb-orange); }
.page-contact .cc-step__mark::before,
.page-contact .cc-step__mark::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  background: var(--sb-blue);
  transform: translate(-50%, -50%);
}
.page-contact .cc-step__mark::before { width: 10px; height: 1.5px; }
.page-contact .cc-step__mark::after {
  width: 1.5px;
  height: 10px;
  transition: transform .22s var(--sb-ease);
}
.page-contact .cc-step[open] .cc-step__mark::after {
  transform: translate(-50%, -50%) scaleY(0);
}
.page-contact .cc-step__time {
  grid-column: 1 / -1;
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--sb-stone);
}
.page-contact .cc-step__body {
  padding: 8px 18px 20px;
  border-top: 1px dashed var(--sb-line);
}
.page-contact .cc-step__body p {
  margin: 0 0 10px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--sb-ink);
}
.page-contact .cc-step__body p:last-child { margin-bottom: 0; }

@media (min-width: 900px) {
  .page-contact .cc-flow {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 18px;
    align-items: start;
  }
}

/* ---------- 覆盖范围 ---------- */
.page-contact .cc-cover {
  padding-block: clamp(32px, 5.5vw, 70px);
  background: var(--sb-warm);
}
.page-contact .cc-cover__grid {
  display: grid;
  gap: 28px;
}
.page-contact .cc-cover__figure {
  margin: 0;
  border-radius: var(--cc-radius);
  overflow: hidden;
  border: 1px solid var(--sb-line-strong);
  background: var(--sb-paper);
}
.page-contact .cc-cover__figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}
.page-contact .cc-cover__copy h2 {
  margin: 10px 0 14px;
  font-size: clamp(24px, 4.4vw, 38px);
  line-height: 1.28;
  letter-spacing: -.02em;
  color: var(--sb-blue);
}
.page-contact .cc-cover__copy p {
  margin: 0 0 14px;
  font-size: 16px;
  line-height: 1.78;
  color: var(--sb-ink);
}
.page-contact .cc-cover__copy a {
  color: var(--sb-clay);
  text-decoration: none;
  border-bottom: 1px solid rgba(180, 103, 74, .45);
  transition: color .2s var(--sb-ease), border-color .2s var(--sb-ease);
}
.page-contact .cc-cover__copy a:hover {
  color: var(--sb-orange);
  border-bottom-color: var(--sb-orange);
}
.page-contact .cc-cover__stats {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}
.page-contact .cc-stat {
  padding: 14px 14px 16px;
  border-radius: 14px;
  background: var(--sb-paper);
  border: 1px solid var(--sb-line);
  border-left: 4px solid var(--sb-moss);
}
.page-contact .cc-stat:nth-child(2) { border-left-color: var(--sb-orange); }
.page-contact .cc-stat:nth-child(3) { border-left-color: var(--sb-green); }
.page-contact .cc-stat__num {
  display: block;
  font-family: var(--sb-font-num);
  font-stretch: condensed;
  font-weight: 700;
  font-size: clamp(30px, 6vw, 44px);
  line-height: 1;
  letter-spacing: .01em;
  color: var(--sb-blue);
}
.page-contact .cc-stat__unit {
  margin-left: 3px;
  font-family: var(--sb-font-sans);
  font-size: .42em;
  font-weight: 700;
}
.page-contact .cc-stat__label {
  display: block;
  margin-top: 8px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--sb-stone);
}

@media (min-width: 560px) {
  .page-contact .cc-cover__stats { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}
@media (min-width: 900px) {
  .page-contact .cc-cover__grid {
    grid-template-columns: minmax(0, .92fr) minmax(0, 1.08fr);
    gap: 44px;
    align-items: center;
  }
}

/* ---------- 反馈渠道 ---------- */
.page-contact .cc-support {
  padding-block: clamp(30px, 5vw, 62px);
}
.page-contact .cc-channels {
  display: grid;
  gap: 16px;
}
.page-contact .cc-channel {
  position: relative;
  padding: 28px 22px 24px;
  background: var(--sb-paper);
  border: 1px solid var(--sb-line);
  border-radius: var(--cc-radius);
}
.page-contact .cc-channel::before {
  content: "";
  position: absolute;
  left: 22px;
  top: 0;
  width: 56px;
  height: 4px;
  border-radius: 0 0 4px 4px;
  background: var(--sb-green);
}
.page-contact .cc-channel:nth-child(2)::before { background: var(--sb-orange); }
.page-contact .cc-channel h3 {
  margin: 8px 0 12px;
  font-size: 20px;
  font-weight: 800;
  color: var(--sb-blue);
}
.page-contact .cc-channel p {
  margin: 0 0 10px;
  font-size: 15.5px;
  line-height: 1.76;
  color: var(--sb-ink);
}
.page-contact .cc-channel__meta {
  margin: 14px 0 0;
  padding-top: 12px;
  border-top: 1px dashed var(--sb-line);
  font-size: 12.5px;
  letter-spacing: .04em;
  color: var(--sb-green);
  word-break: break-word;
}
.page-contact .cc-support__links {
  margin: 24px 0 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--sb-stone);
}
.page-contact .cc-support__links a {
  color: var(--sb-clay);
  text-decoration: none;
  border-bottom: 1px solid rgba(180, 103, 74, .45);
  transition: color .2s var(--sb-ease), border-color .2s var(--sb-ease);
}
.page-contact .cc-support__links a:hover {
  color: var(--sb-orange);
  border-bottom-color: var(--sb-orange);
}

@media (min-width: 760px) {
  .page-contact .cc-channels { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

/* ---------- 联系信息 ---------- */
.page-contact .cc-contact-sec {
  padding-block: clamp(20px, 4vw, 44px) clamp(40px, 6vw, 80px);
}
.page-contact .cc-contact {
  position: relative;
  overflow: hidden;
  border-radius: var(--cc-radius);
  background: var(--sb-blue);
  color: var(--sb-warm);
  padding: clamp(26px, 5vw, 56px);
}
.page-contact .cc-contact::after {
  content: "";
  position: absolute;
  right: -90px;
  top: -90px;
  width: 280px;
  height: 280px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(242, 98, 42, .34), rgba(242, 98, 42, 0) 70%);
  pointer-events: none;
}
.page-contact .cc-contact .sb-eyebrow {
  color: var(--sb-amber);
}
.page-contact .cc-contact h2 {
  margin: 10px 0 0;
  font-size: clamp(24px, 4.6vw, 40px);
  line-height: 1.25;
  letter-spacing: -.02em;
  color: var(--sb-warm);
}
.page-contact .cc-contact__dl {
  position: relative;
  z-index: 1;
  margin: 26px 0 0;
  display: grid;
  gap: 18px;
}
.page-contact .cc-contact__row {
  display: grid;
  gap: 6px;
  padding-bottom: 18px;
  border-bottom: 1px solid rgba(244, 237, 226, .16);
}
.page-contact .cc-contact__row:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}
.page-contact .cc-contact__row dt {
  font-family: var(--sb-font-mono);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--sb-amber);
}
.page-contact .cc-contact__row dd { margin: 0; }
.page-contact .cc-contact__value {
  display: block;
  font-family: var(--sb-font-mono);
  font-size: clamp(17px, 4.4vw, 34px);
  line-height: 1.3;
  letter-spacing: .01em;
  color: var(--sb-warm);
  word-break: break-word;
}
.page-contact .cc-contact__value--num {
  font-family: var(--sb-font-num);
  font-stretch: condensed;
  font-weight: 700;
  font-size: clamp(34px, 9vw, 66px);
}
.page-contact .cc-contact__value--sm {
  font-family: var(--sb-font-sans);
  font-weight: 700;
  font-size: clamp(16px, 3.8vw, 26px);
  letter-spacing: -.01em;
}
.page-contact .cc-contact__note {
  position: relative;
  z-index: 1;
  margin: 24px 0 0;
  max-width: 56ch;
  font-size: 14px;
  line-height: 1.72;
  color: rgba(244, 237, 226, .74);
}
.page-contact .cc-contact__top {
  position: relative;
  z-index: 1;
  display: inline-flex;
  align-items: center;
  margin-top: 28px;
  padding: 10px 22px;
  border-radius: 999px;
  border: 1px solid rgba(244, 237, 226, .4);
  color: var(--sb-warm);
  font-size: 14px;
  text-decoration: none;
  transition: background .2s var(--sb-ease), color .2s var(--sb-ease), border-color .2s var(--sb-ease);
}
.page-contact .cc-contact__top:hover,
.page-contact .cc-contact__top:focus-visible {
  background: var(--sb-orange);
  border-color: var(--sb-orange);
  color: #FFFFFF;
}

/* ---------- 动效收敛 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-contact .cc-lane,
  .page-contact .cc-lane::before,
  .page-contact .cc-lane__plan,
  .page-contact .cc-jump,
  .page-contact .cc-step > summary,
  .page-contact .cc-step__mark,
  .page-contact .cc-step__mark::after,
  .page-contact .cc-contact__top,
  .page-contact .sb-breadcrumb a,
  .page-contact .cc-cover__copy a,
  .page-contact .cc-support__links a {
    transition: none;
  }
  .page-contact .cc-lane:hover,
  .page-contact .cc-lane:focus-visible {
    transform: none;
  }
}
<<<END>>>