.page-contact {
  --ct-gap: clamp(30px, 4.6vw, 74px);
  --ct-pad: clamp(24px, 3.2vw, 40px);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  overflow: hidden;
  padding-block: clamp(76px, 12vh, 156px) clamp(40px, 7vh, 88px);
}
.page-contact .contact-hero__media {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.page-contact .contact-hero__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .3;
  filter: saturate(.65) brightness(.72);
}
.page-contact .contact-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background:
    linear-gradient(180deg, rgba(10, 26, 47, .35) 0%, rgba(10, 26, 47, .84) 58%, var(--c-arena) 100%),
    radial-gradient(80% 60% at 12% 10%, rgba(255, 107, 44, .16), transparent 62%);
}
.page-contact .contact-hero__inner {
  position: relative;
  z-index: 2;
}
.page-contact .contact-hero__title {
  font-family: var(--font-display);
  font-size: clamp(36px, 7.4vw, 92px);
  line-height: 1.02;
  letter-spacing: -.01em;
  margin: 20px 0 0;
  max-width: 15em;
  color: var(--c-ice);
}
.page-contact .contact-hero__lead {
  margin-top: 24px;
  max-width: 58ch;
  color: var(--c-ice);
}
.page-contact .contact-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 30px;
  margin: 36px 0 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .05em;
  color: var(--c-mist);
}
.page-contact .contact-hero__meta li {
  display: inline-flex;
  align-items: center;
  gap: 9px;
}

/* ---------- 主体栅格 ---------- */
.page-contact .contact-stage__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--ct-gap);
  align-items: start;
}

/* ---------- 左侧联络浮岛 ---------- */
.page-contact .contact-board {
  position: relative;
  padding: var(--ct-pad);
  border: 1px solid var(--c-slate);
  background:
    radial-gradient(130% 90% at 100% 0%, rgba(255, 107, 44, .16), transparent 62%),
    linear-gradient(165deg, var(--c-midnight), var(--c-arena) 78%);
  clip-path: polygon(0 0, calc(100% - 30px) 0, 100% 30px, 100% 100%, 30px 100%, 0 calc(100% - 30px));
  box-shadow: var(--shadow-float);
}
.page-contact .contact-board::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(var(--c-orange), var(--c-orange)) left top / 52px 2px no-repeat,
    linear-gradient(var(--c-orange), var(--c-orange)) left top / 2px 52px no-repeat;
}
.page-contact .contact-board__title {
  margin-top: 10px;
}
.page-contact .contact-board__item {
  margin-top: 26px;
  padding-top: 24px;
  border-top: 1px solid var(--c-slate);
}
.page-contact .contact-board__label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--c-mist);
}
.page-contact .contact-board__value {
  margin: 10px 0 0;
  font-family: var(--font-mono);
  font-weight: 600;
  letter-spacing: .01em;
  overflow-wrap: anywhere;
}
.page-contact .contact-board__value--tel {
  font-size: clamp(22px, 6.6vw, 30px);
  color: var(--c-orange);
}
.page-contact .contact-board__value--mail {
  font-size: clamp(15px, 4.2vw, 18px);
  color: var(--c-cyan);
}
.page-contact .contact-board__hint {
  margin: 8px 0 0;
  font-size: 13px;
  line-height: 1.75;
  color: var(--c-mist);
}
.page-contact .contact-board .note {
  margin-top: 26px;
  padding-top: 18px;
  border-top: 1px dashed var(--c-slate);
}

/* ---------- 右侧流程区 ---------- */
.page-contact .contact-flow {
  display: grid;
  gap: clamp(48px, 7vw, 96px);
  min-width: 0;
}
.page-contact .contact-block {
  min-width: 0;
}
.page-contact .contact-block__intro {
  margin-top: 16px;
  max-width: 60ch;
  font-size: 16px;
  line-height: 1.85;
  color: var(--c-ice);
}
.page-contact .contact-block__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 28px;
}

/* 通道列表 */
.page-contact .channel-list {
  display: grid;
  gap: 14px;
  margin: 30px 0 0;
  padding: 0;
  list-style: none;
}
.page-contact .channel {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 16px;
  padding: 22px 22px 22px 20px;
  border-left: 3px solid var(--c-slate);
  background: linear-gradient(90deg, rgba(18, 42, 71, .95), rgba(10, 26, 47, .66));
  transition: border-color .24s var(--ease), background .24s var(--ease);
}
.page-contact .channel:hover {
  border-left-color: var(--c-orange);
  background: linear-gradient(90deg, rgba(30, 58, 95, .95), rgba(10, 26, 47, .7));
}
.page-contact .channel__index {
  font-family: var(--font-mono);
  font-size: 20px;
  line-height: 1.2;
  color: var(--c-orange);
}
.page-contact .channel__title {
  margin: 0 0 8px;
}
.page-contact .channel__body p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--c-mist);
}

/* 阶梯流程 */
.page-contact .flow-steps {
  display: grid;
  gap: 14px;
  margin: 30px 0 0;
  padding: 0;
  list-style: none;
}
.page-contact .flow-step {
  position: relative;
  padding: 22px 24px 24px 22px;
  border-top: 1px solid var(--c-slate);
  background: linear-gradient(160deg, var(--c-midnight), rgba(10, 26, 47, .8));
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 18px), calc(100% - 18px) 100%, 0 100%);
}
.page-contact .flow-step__num {
  display: block;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .14em;
  color: var(--c-cyan);
}
.page-contact .flow-step h3 {
  margin: 10px 0 8px;
}
.page-contact .flow-step p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--c-mist);
}
.page-contact .contact-flow__figure {
  margin-top: 30px;
}

/* 更正与建议 */
.page-contact .contact-block--wine {
  padding: clamp(26px, 3.6vw, 46px);
  background:
    radial-gradient(90% 70% at 0% 100%, rgba(255, 107, 44, .14), transparent 66%),
    linear-gradient(150deg, var(--c-wine), #2A0B1B 88%);
  clip-path: polygon(34px 0, 100% 0, 100% calc(100% - 34px), calc(100% - 34px) 100%, 0 100%, 0 34px);
}
.page-contact .contact-split {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  margin-top: 26px;
}
.page-contact .contact-split__col p {
  margin: 14px 0 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--c-ice);
}
.page-contact .check-list {
  display: grid;
  gap: 10px;
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
}
.page-contact .check-list li {
  position: relative;
  padding-left: 22px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--c-ice);
}
.page-contact .check-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .68em;
  width: 10px;
  height: 2px;
  background: var(--c-orange);
}
.page-contact .contact-block--wine .note {
  margin-top: 26px;
  padding-top: 18px;
  border-top: 1px solid rgba(220, 233, 245, .16);
}

/* 合作材料折叠 */
.page-contact .deal-materials {
  margin-top: 28px;
  border: 1px solid var(--c-slate);
  background: rgba(18, 42, 71, .58);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 20px), calc(100% - 20px) 100%, 0 100%);
}
.page-contact .deal-materials summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 18px 22px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .1em;
  color: var(--c-orange);
}
.page-contact .deal-materials summary::-webkit-details-marker {
  display: none;
}
.page-contact .deal-materials summary::after {
  content: "+";
  font-family: var(--font-mono);
  font-size: 20px;
  line-height: 1;
  color: var(--c-cyan);
  transition: transform .24s var(--ease);
}
.page-contact .deal-materials[open] summary::after {
  transform: rotate(45deg);
}
.page-contact .deal-materials summary:focus-visible {
  outline: 2px solid var(--c-neon);
  outline-offset: 3px;
}
.page-contact .deal-materials .check-list {
  margin: 0;
  padding: 0 22px 24px;
}

/* 地址与备案 */
.page-contact .contact-block--address {
  padding-top: 4px;
}
.page-contact .address-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px 34px;
  margin: 28px 0 0;
  padding: 0;
}
.page-contact .address-grid dt {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--c-mist);
}
.page-contact .address-grid dd {
  margin: 9px 0 0;
  font-size: 16px;
  line-height: 1.6;
  color: var(--c-ice);
  overflow-wrap: anywhere;
}
.page-contact .address-grid dd.num {
  font-family: var(--font-mono);
  color: var(--c-cyan);
}
.page-contact .contact-block--address .note {
  margin-top: 28px;
  padding-top: 18px;
  border-top: 1px solid var(--c-slate);
}

/* 页尾指路 */
.page-contact .contact-tail {
  margin: 0;
  max-width: 68ch;
  font-size: 15px;
  line-height: 1.95;
  color: var(--c-mist);
}
.page-contact .contact-tail a {
  color: var(--c-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(47, 214, 255, .42);
  transition: color .2s var(--ease), border-color .2s var(--ease);
}
.page-contact .contact-tail a:hover,
.page-contact .contact-tail a:focus-visible {
  color: var(--c-orange);
  border-bottom-color: var(--c-orange);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-contact .address-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 700px) {
  .page-contact .contact-split {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 34px;
  }
}

@media (min-width: 760px) {
  .page-contact .flow-step:nth-child(2) {
    margin-left: 26px;
  }
  .page-contact .flow-step:nth-child(3) {
    margin-left: 52px;
  }
  .page-contact .flow-step:nth-child(4) {
    margin-left: 78px;
  }
}

@media (min-width: 1000px) {
  .page-contact .contact-stage__grid {
    grid-template-columns: minmax(300px, 0.86fr) minmax(0, 1.62fr);
  }
  .page-contact .contact-board {
    position: sticky;
    top: 104px;
  }
}

@media (max-width: 520px) {
  .page-contact .channel {
    grid-template-columns: 1fr;
    gap: 8px;
  }
  .page-contact .channel__index {
    font-size: 16px;
  }
  .page-contact .contact-block__cta .btn {
    flex: 1 1 100%;
    text-align: center;
  }
}
<<<PAGE_CSS_END>>>