.page-contact {
  --c-gap: clamp(20px, 4vw, 48px);
  --c-note: #d9d3c6;
}

.page-contact .section {
  padding-block: clamp(44px, 7vw, 92px);
}

.page-contact .section--tight {
  padding-block: clamp(28px, 4.5vw, 56px);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  padding-top: clamp(18px, 3vw, 36px);
}

.page-contact .contact-hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--c-gap);
}

@media (min-width: 900px) {
  .page-contact .contact-hero-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: end;
  }
}

.page-contact .contact-hero h1 {
  margin: 12px 0 0;
  font-size: clamp(30px, 6.4vw, 62px);
  line-height: 1.08;
  letter-spacing: -0.02em;
  max-width: 15ch;
}

.page-contact .contact-hero .lede {
  margin: 20px 0 0;
  max-width: 42ch;
  font-size: clamp(15px, 1.7vw, 17.5px);
  line-height: 1.75;
  color: var(--c-note);
}

.page-contact .contact-hero-side {
  padding: 22px 22px 24px;
  border: 1px solid var(--line);
  border-left: 2px solid var(--gold);
  background: var(--glass);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
}

.page-contact .contact-hero-side-title {
  margin: 0 0 16px;
  font-size: 13px;
  letter-spacing: 0.08em;
  font-weight: 800;
  color: var(--gold);
}

.page-contact .contact-hero-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-contact .contact-hero-list li {
  position: relative;
  padding-left: 20px;
  font-size: 15px;
  line-height: 1.65;
  color: var(--bone);
}

.page-contact .contact-hero-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.6em;
  width: 8px;
  height: 8px;
  border: 1px solid var(--aqua);
  transform: rotate(45deg);
}

/* ---------- 通栏图 ---------- */
.page-contact .contact-band {
  margin: 0;
  border: 1px solid var(--line);
  overflow: hidden;
  background: var(--panel);
}

.page-contact .contact-band img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 7 / 4;
  object-fit: cover;
}

/* ---------- 章节头 ---------- */
.page-contact .contact-sec-head {
  max-width: 60ch;
}

.page-contact .contact-sec-head .section-title {
  margin: 10px 0 0;
  font-size: clamp(24px, 4.2vw, 40px);
  line-height: 1.2;
  letter-spacing: -0.01em;
}

.page-contact .contact-sec-head .prose {
  margin-top: 16px;
}

/* ---------- 三条合作线 ---------- */
.page-contact .contact-way-list {
  margin-top: clamp(28px, 4vw, 48px);
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

@media (min-width: 880px) {
  .page-contact .contact-way-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-contact .contact-way {
  background: var(--panel);
  padding: clamp(22px, 3vw, 36px);
  display: flex;
  flex-direction: column;
  gap: 14px;
  box-shadow: inset 0 2px 0 transparent;
  transition: box-shadow 0.24s var(--ease), background-color 0.24s var(--ease);
}

.page-contact .contact-way:hover,
.page-contact .contact-way:focus-within {
  background: var(--panel-2);
  box-shadow: inset 0 2px 0 var(--gold);
}

.page-contact .contact-way-num {
  margin: 0;
  font-size: 13px;
  letter-spacing: 0.2em;
  color: var(--gold);
}

.page-contact .contact-way .sub-title {
  margin: 0;
  font-size: clamp(19px, 2.3vw, 23px);
  line-height: 1.3;
}

.page-contact .contact-way-fit {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--mist);
}

.page-contact .contact-way-tag {
  display: inline-block;
  margin-right: 8px;
  padding: 1px 7px;
  border: 1px solid var(--gold-deep);
  color: var(--gold);
  font-size: 12px;
  letter-spacing: 0.06em;
}

.page-contact .contact-way-get {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--bone);
}

/* ---------- 合作流程 ---------- */
.page-contact .contact-steps {
  list-style: none;
  margin: clamp(28px, 4vw, 48px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

@media (min-width: 720px) {
  .page-contact .contact-steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1080px) {
  .page-contact .contact-steps {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

.page-contact .contact-step {
  position: relative;
  background: var(--ink);
  padding: clamp(22px, 3vw, 32px) clamp(18px, 2.6vw, 26px);
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.page-contact .contact-step::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--gold), rgba(232, 176, 75, 0));
  opacity: 0.6;
}

.page-contact .contact-step-num {
  margin: 0;
  font-size: 24px;
  line-height: 1;
  color: var(--aqua);
  letter-spacing: -0.02em;
}

.page-contact .contact-step .sub-title {
  margin: 0;
  font-size: 19px;
  line-height: 1.35;
}

.page-contact .contact-step p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--c-note);
}

.page-contact .contact-step-need {
  margin-top: auto !important;
  padding-top: 12px;
  border-top: 1px solid var(--line);
  font-size: 13px !important;
  line-height: 1.6 !important;
  color: var(--mist) !important;
}

/* ---------- 服务范围 ---------- */
.page-contact .contact-table-scroll {
  margin-top: clamp(24px, 4vw, 44px);
  overflow-x: auto;
  border: 1px solid var(--line);
  background: var(--panel);
}

.page-contact .contact-table {
  width: 100%;
  min-width: 640px;
  border-collapse: collapse;
  font-size: 15px;
}

.page-contact .contact-table caption {
  padding: 14px 18px;
  text-align: left;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--mist);
  border-bottom: 1px solid var(--line);
}

.page-contact .contact-table th,
.page-contact .contact-table td {
  padding: 16px 18px;
  text-align: left;
  vertical-align: top;
  line-height: 1.72;
  border-bottom: 1px solid var(--line);
}

.page-contact .contact-table th {
  position: sticky;
  left: 0;
  z-index: 1;
  width: 140px;
  white-space: nowrap;
  font-weight: 700;
  color: var(--gold);
  background: var(--panel-2);
}

.page-contact .contact-table td {
  color: var(--bone);
}

.page-contact .contact-table tbody tr:last-child th,
.page-contact .contact-table tbody tr:last-child td {
  border-bottom: 0;
}

/* ---------- 提交意向 ---------- */
.page-contact .contact-intent-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--c-gap);
}

@media (min-width: 960px) {
  .page-contact .contact-intent-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
  }
}

.page-contact .contact-intent-body .section-title {
  margin: 10px 0 0;
  font-size: clamp(24px, 4.2vw, 38px);
  line-height: 1.2;
  letter-spacing: -0.01em;
}

.page-contact .contact-intent-body .prose {
  margin-top: 16px;
}

.page-contact .contact-fields {
  list-style: none;
  margin: clamp(22px, 3vw, 32px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

@media (min-width: 620px) {
  .page-contact .contact-fields {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.page-contact .contact-fields li {
  display: flex;
  align-items: baseline;
  gap: 10px;
  background: var(--panel);
  padding: 14px 16px;
  font-size: 14.5px;
  line-height: 1.62;
  color: var(--bone);
}

.page-contact .contact-fields li::before {
  content: "";
  flex: 0 0 auto;
  width: 6px;
  height: 6px;
  border: 1px solid var(--aqua);
  transform: rotate(45deg) translateY(-1px);
}

.page-contact .contact-after-title {
  margin: clamp(28px, 4vw, 40px) 0 0;
  font-size: 14px;
  font-weight: 800;
  letter-spacing: 0.06em;
  color: var(--gold);
}

.page-contact .contact-after {
  list-style: none;
  counter-reset: ca;
  margin: 16px 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-contact .contact-after li {
  counter-increment: ca;
  display: grid;
  grid-template-columns: 36px minmax(0, 1fr);
  gap: 12px;
  font-size: 15px;
  line-height: 1.72;
  color: var(--c-note);
}

.page-contact .contact-after li::before {
  content: counter(ca, decimal-leading-zero);
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--gold);
  padding-top: 3px;
}

.page-contact .contact-intent-figure {
  margin: 0;
  border: 1px solid var(--line);
  overflow: hidden;
  background: var(--panel);
}

.page-contact .contact-intent-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 10 / 7;
  object-fit: cover;
}

@media (min-width: 960px) {
  .page-contact .contact-intent-figure {
    position: sticky;
    top: calc(var(--header-total) + 24px);
  }
}

/* ---------- 直接联系 ---------- */
.page-contact .contact-reach-panel {
  position: relative;
  padding: clamp(24px, 4vw, 52px);
  border: 1px solid var(--glass-strong);
  background: var(--glass);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
}

.page-contact .contact-reach-panel::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 96px;
  height: 2px;
  background: var(--gold);
}

.page-contact .contact-reach-panel .section-title {
  margin: 10px 0 0;
  font-size: clamp(24px, 4vw, 36px);
  line-height: 1.2;
}

.page-contact .contact-reach-list {
  margin: clamp(24px, 3.5vw, 40px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: rgba(242, 237, 227, 0.1);
}

@media (min-width: 820px) {
  .page-contact .contact-reach-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-contact .contact-reach-item {
  padding: 20px 22px;
  background: rgba(10, 26, 22, 0.38);
}

.page-contact .contact-reach-item dt {
  margin-bottom: 10px;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--mist);
}

.page-contact .contact-reach-item dd {
  margin: 0;
  font-size: 16px;
  line-height: 1.6;
  color: var(--bone);
  word-break: break-word;
  overflow-wrap: anywhere;
}

.page-contact .contact-reach-note {
  display: block;
  margin-top: 10px;
  font-size: 13.5px;
  line-height: 1.65;
  color: var(--mist);
}

/* ---------- 常见问题 ---------- */
.page-contact .contact-help .section-title {
  margin: 10px 0 0;
  font-size: clamp(24px, 4vw, 38px);
  line-height: 1.2;
}

.page-contact .contact-help .prose {
  margin-top: 16px;
}

.page-contact .contact-help-links {
  list-style: none;
  margin: clamp(24px, 3.5vw, 36px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

@media (min-width: 760px) {
  .page-contact .contact-help-links {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-contact .contact-help-links li {
  background: var(--panel);
  padding: 20px 22px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.page-contact .contact-help-links a {
  align-self: flex-start;
  color: var(--aqua);
  font-weight: 700;
  font-size: 16px;
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 224, 200, 0.4);
  padding-bottom: 2px;
  transition: border-color 0.2s var(--ease), color 0.2s var(--ease);
}

.page-contact .contact-help-links a:hover,
.page-contact .contact-help-links a:focus-visible {
  color: var(--gold);
  border-bottom-color: var(--gold);
}

.page-contact .contact-help-links span {
  font-size: 13.5px;
  line-height: 1.65;
  color: var(--mist);
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .contact-way,
  .page-contact .contact-help-links a {
    transition: none;
  }
}
<<<END>>>
以上是 main_html 和 page_css 两个部分。页面围绕商务合作场景，依次展开三条合作方向、四步流程、服务范围表格、提交意向字段、直接联系与常见问题引导；视觉上使用整宽数据带、斜向分栏与玻璃面板，窄屏下表格可横向滚动并保持首列吸附。