/* ============================================
   服务联络 · 页面专属样式（.page-contact 作用域）
   ============================================ */

.page-contact {
  --contact-cut: 12px;
  --contact-line: rgba(28, 58, 86, 0.7);
  --contact-softline: rgba(28, 58, 86, 0.35);
  background: var(--deep-sea);
}

/* ---------- 首屏 ---------- */

.page-contact .contact-hero {
  position: relative;
  padding-top: calc(var(--header-h) + clamp(40px, 7vw, 88px));
  padding-bottom: clamp(48px, 7vw, 88px);
  overflow: hidden;
  background:
    radial-gradient(ellipse 60% 50% at 82% 12%, rgba(43, 227, 210, 0.14), transparent 68%),
    radial-gradient(ellipse 45% 40% at 8% 82%, rgba(255, 107, 44, 0.09), transparent 70%),
    var(--deep-sea);
}

.page-contact .contact-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, var(--contact-softline) 1px, transparent 1px),
    linear-gradient(to bottom, var(--contact-softline) 1px, transparent 1px);
  background-size: 88px 88px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.5) 0%, rgba(0, 0, 0, 0) 72%);
  -webkit-mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.5) 0%, rgba(0, 0, 0, 0) 72%);
  pointer-events: none;
}

.page-contact .contact-hero .shell {
  position: relative;
  z-index: 1;
}

.page-contact .contact-hero .crumb {
  margin-bottom: clamp(28px, 4vw, 48px);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--mist);
}

.page-contact .contact-hero__title {
  font-size: clamp(38px, 7.4vw, 76px);
  font-weight: 900;
  line-height: 1.06;
  letter-spacing: -0.02em;
  color: var(--ice);
  margin: 14px 0 22px;
  max-width: 13em;
}

.page-contact .contact-hero__lede {
  max-width: 42em;
  font-size: 17px;
  line-height: 1.78;
  color: var(--mist);
}

.page-contact .contact-hero__lede::first-letter {
  color: var(--ice);
}

.page-contact .contact-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: clamp(24px, 3vw, 36px);
}

/* ---------- 通用小节头 ---------- */

.page-contact .section-head {
  margin-bottom: clamp(28px, 4vw, 48px);
  max-width: 48em;
}

.page-contact .section-head__title {
  font-size: clamp(26px, 4vw, 42px);
  font-weight: 800;
  line-height: 1.16;
  letter-spacing: -0.02em;
  color: var(--ice);
  margin: 12px 0 16px;
}

.page-contact .section-head__lede {
  font-size: 16.5px;
  line-height: 1.76;
  color: var(--mist);
  max-width: 38em;
}

/* ---------- 发信准备 分屏 ---------- */

.page-contact .contact-ready {
  border-top: 1px solid var(--contact-line);
}

.page-contact .contact-ready__split {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 4vw, 48px);
  align-items: start;
}

/* 邮件模板 */

.page-contact .mail-template {
  position: relative;
  background: var(--panel-blue);
  border: 1px solid var(--contact-line);
  clip-path: polygon(0 0, calc(100% - var(--contact-cut)) 0, 100% var(--contact-cut), 100% 100%, 0 100%);
  padding: 0 0 clamp(22px, 3vw, 30px);
}

.page-contact .mail-template__bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 18px;
  border-bottom: 1px solid var(--contact-softline);
  background: rgba(6, 24, 43, 0.55);
}

.page-contact .mail-template__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--grid);
  flex-shrink: 0;
}

.page-contact .mail-template__dot:first-child {
  background: var(--orange);
}

.page-contact .mail-template__dot:nth-child(2) {
  background: var(--cyan);
}

.page-contact .mail-template__to {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.03em;
  color: var(--cyan);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.page-contact .mail-template__list {
  margin: 0;
  padding: clamp(20px, 3vw, 28px) clamp(18px, 3vw, 26px) 0;
}

.page-contact .mail-field {
  padding: 14px 0;
  border-bottom: 1px dashed var(--contact-softline);
}

.page-contact .mail-field:last-child {
  border-bottom: none;
}

.page-contact .mail-field__key {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--cyan);
  margin-bottom: 6px;
}

.page-contact .mail-field__value {
  font-size: 15px;
  line-height: 1.6;
  color: var(--ice);
  font-weight: 600;
}

.page-contact .mail-field__note {
  margin-top: 4px;
  font-size: 13.5px;
  line-height: 1.66;
  color: var(--mist);
}

.page-contact .mail-template__foot {
  margin: 18px clamp(18px, 3vw, 26px) 0;
  padding-top: 16px;
  border-top: 1px solid var(--contact-softline);
  font-size: 14px;
  line-height: 1.72;
  color: var(--mist);
}

/* 配图 */

.page-contact .contact-ready__figure {
  margin: 0;
  position: relative;
}

.page-contact .contact-ready__figure .media {
  width: 100%;
}

.page-contact .contact-ready__caption {
  margin-top: 12px;
  font-size: 13px;
  line-height: 1.68;
  color: var(--mist);
  font-family: var(--font-mono);
  letter-spacing: 0.02em;
}

/* ---------- 处理路径 ---------- */

.page-contact .contact-flow {
  border-top: 1px solid var(--contact-line);
  background:
    linear-gradient(180deg, rgba(12, 39, 64, 0.45) 0%, rgba(6, 24, 43, 0) 42%),
    var(--deep-sea);
}

.page-contact .flow-wrap {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 4vw, 48px);
  align-items: start;
}

.page-contact .flow-list {
  list-style: none;
  margin: 0;
  padding: 0;
  position: relative;
}

.page-contact .flow-item {
  position: relative;
  padding-left: 34px;
}

.page-contact .flow-item::before {
  content: "";
  position: absolute;
  left: 9px;
  top: 34px;
  bottom: -6px;
  width: 1px;
  background: var(--contact-line);
}

.page-contact .flow-item:last-child::before {
  display: none;
}

.page-contact .flow-node {
  margin-bottom: 10px;
  background: var(--panel-blue);
  border: 1px solid var(--contact-line);
  clip-path: polygon(0 0, calc(100% - 10px) 0, 100% 10px, 100% 100%, 0 100%);
  transition: border-color 240ms var(--ease), background 240ms var(--ease);
}

.page-contact .flow-node summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  min-height: 44px;
  padding: 16px 18px;
  position: relative;
}

.page-contact .flow-node summary::-webkit-details-marker {
  display: none;
}

.page-contact .flow-node__dot {
  position: absolute;
  left: -34px;
  top: 22px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 0 4px rgba(43, 227, 210, 0.16);
}

.page-contact .flow-item:first-child .flow-node__dot {
  background: var(--orange);
  box-shadow: 0 0 0 4px rgba(255, 107, 44, 0.18);
}

.page-contact .flow-node__index {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--mist);
}

.page-contact .flow-node__title {
  font-size: 17px;
  font-weight: 700;
  color: var(--ice);
  letter-spacing: -0.01em;
}

.page-contact .flow-node__meta {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: var(--amber);
  white-space: nowrap;
}

.page-contact .flow-node__body {
  padding: 0 18px 18px;
  border-top: 1px solid var(--contact-softline);
  margin-top: 2px;
}

.page-contact .flow-node__body p {
  padding-top: 14px;
  font-size: 15px;
  line-height: 1.76;
  color: var(--mist);
}

.page-contact .flow-node:hover,
.page-contact .flow-node:focus-within {
  border-color: rgba(43, 227, 210, 0.5);
  background: #0e2c46;
}

.page-contact .flow-figure {
  margin: 0;
}

.page-contact .flow-figure .media {
  width: 100%;
}

.page-contact .flow-figure__caption {
  margin-top: 12px;
  font-size: 13px;
  line-height: 1.68;
  color: var(--mist);
  font-family: var(--font-mono);
  letter-spacing: 0.02em;
}

/* ---------- 数据出入 ---------- */

.page-contact .data-report {
  border-top: 1px solid var(--contact-line);
}

.page-contact .data-report__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 4vw, 52px);
  align-items: start;
}

.page-contact .data-report__text > p {
  font-size: 16px;
  line-height: 1.78;
  color: var(--mist);
  max-width: 40em;
}

.page-contact .data-format {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  border-top: 1px solid var(--contact-line);
}

.page-contact .data-format__row {
  display: grid;
  grid-template-columns: 34px 1fr;
  gap: 14px;
  align-items: baseline;
  padding: 14px 0;
  border-bottom: 1px solid var(--contact-softline);
}

.page-contact .data-format__key {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--cyan);
}

.page-contact .data-format__label {
  font-size: 15px;
  line-height: 1.6;
  color: var(--ice);
}

.page-contact .data-report__note {
  margin-top: 22px;
  padding-left: 16px;
  border-left: 2px solid var(--orange);
  font-size: 14.5px;
  line-height: 1.74;
  color: var(--mist);
}

.page-contact .data-report__aside {
  background: var(--panel-blue);
  border: 1px solid var(--contact-line);
  clip-path: polygon(var(--contact-cut) 0, 100% 0, 100% 100%, 0 100%, 0 var(--contact-cut));
  padding: clamp(20px, 3vw, 28px);
}

.page-contact .data-report__aside-label {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--amber);
  margin-bottom: 16px;
}

.page-contact .data-report__themes {
  list-style: none;
  margin: 0 0 18px;
  padding: 0;
}

.page-contact .data-report__themes li {
  position: relative;
  padding: 10px 0 10px 18px;
  font-size: 14.5px;
  line-height: 1.66;
  color: var(--ice);
  border-bottom: 1px dashed var(--contact-softline);
}

.page-contact .data-report__themes li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 18px;
  width: 6px;
  height: 6px;
  background: var(--cyan);
  transform: rotate(45deg);
}

.page-contact .data-report__themes li:last-child {
  border-bottom: none;
}

.page-contact .data-report__aside-foot {
  padding-top: 14px;
  border-top: 1px solid var(--contact-softline);
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--mist);
}

/* ---------- 合作对接 ---------- */

.page-contact .partner {
  border-top: 1px solid var(--contact-line);
  background:
    linear-gradient(180deg, rgba(44, 51, 59, 0.5) 0%, rgba(6, 24, 43, 0) 60%),
    var(--deep-sea);
}

.page-contact .partner__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 4vw, 52px);
  align-items: start;
}

.page-contact .partner__text > p {
  font-size: 16px;
  line-height: 1.78;
  color: var(--mist);
  max-width: 38em;
}

.page-contact .partner__signal {
  margin-top: 18px;
  font-family: var(--font-mono);
  font-size: 13.5px;
  line-height: 1.72;
  color: var(--cyan);
  letter-spacing: 0.02em;
}

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

.page-contact .partner__item {
  display: grid;
  grid-template-columns: 32px 1fr;
  gap: 14px;
  align-items: start;
  padding: 18px;
  background: var(--panel-blue);
  border: 1px solid var(--contact-line);
  clip-path: polygon(0 0, calc(100% - 10px) 0, 100% 10px, 100% 100%, 0 100%);
  transition: border-color 240ms var(--ease), transform 240ms var(--ease);
}

.page-contact .partner__item:hover {
  border-color: rgba(43, 227, 210, 0.45);
  transform: translateY(-2px);
}

.page-contact .partner__item-tag {
  font-family: var(--font-mono);
  font-size: 16px;
  font-weight: 700;
  color: var(--orange);
  letter-spacing: 0.04em;
  line-height: 1.4;
}

.page-contact .partner__item-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--ice);
  margin-bottom: 6px;
  letter-spacing: -0.01em;
}

.page-contact .partner__item-desc {
  font-size: 14px;
  line-height: 1.7;
  color: var(--mist);
}

/* ---------- 服务时段条 ---------- */

.page-contact .service-band {
  border-top: 1px solid var(--contact-line);
  border-bottom: 1px solid var(--contact-line);
  background:
    repeating-linear-gradient(90deg, var(--contact-softline) 0 1px, transparent 1px 64px),
    rgba(12, 39, 64, 0.55);
  padding: clamp(36px, 5vw, 64px) 0;
}

.page-contact .service-band__head {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin-bottom: clamp(24px, 3vw, 36px);
}

.page-contact .service-band__lead {
  font-size: 15px;
  line-height: 1.74;
  color: var(--mist);
  max-width: 46em;
}

.page-contact .service-band__track {
  display: grid;
  grid-template-columns: 1fr;
  border-top: 1px solid var(--contact-line);
}

.page-contact .service-band__seg {
  padding: 18px 0;
  border-bottom: 1px solid var(--contact-softline);
  position: relative;
}

.page-contact .service-band__time {
  display: block;
  font-family: var(--font-mono);
  font-size: 15px;
  letter-spacing: 0.04em;
  color: var(--cyan);
  margin-bottom: 6px;
}

.page-contact .service-band__name {
  display: block;
  font-size: 14px;
  font-weight: 700;
  color: var(--ice);
  margin-bottom: 6px;
}

.page-contact .service-band__desc {
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--mist);
  max-width: 32em;
}

.page-contact .service-band__seg--off .service-band__time {
  color: var(--amber);
}

/* ---------- 常见问题引导 ---------- */

.page-contact .faq-prompt {
  border-top: 1px solid var(--contact-line);
}

.page-contact .faq-prompt__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 3vw, 36px);
  align-items: center;
  background: var(--graphite);
  border: 1px solid var(--contact-line);
  clip-path: polygon(0 0, calc(100% - 16px) 0, 100% 16px, 100% 100%, 0 100%);
  padding: clamp(24px, 4vw, 44px);
}

.page-contact .faq-prompt__text .section-head__title {
  margin-bottom: 14px;
}

.page-contact .faq-prompt__text p {
  font-size: 15.5px;
  line-height: 1.76;
  color: var(--mist);
  max-width: 42em;
}

.page-contact .faq-prompt__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 响应式 ---------- */

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

  .page-contact .service-band__seg {
    padding: 20px 22px 20px 0;
    border-bottom: 1px solid var(--contact-softline);
  }

  .page-contact .service-band__seg:nth-child(odd) {
    border-right: 1px solid var(--contact-softline);
    padding-right: 22px;
  }

  .page-contact .service-band__seg:nth-child(even) {
    padding-left: 22px;
  }

  .page-contact .service-band__seg:nth-last-child(-n+2) {
    border-bottom: none;
  }

  .page-contact .faq-prompt__inner {
    grid-template-columns: 1.6fr 1fr;
  }

  .page-contact .faq-prompt__actions {
    justify-content: flex-end;
  }
}

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

  .page-contact .flow-wrap {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  }

  .page-contact .data-report__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  }

  .page-contact .partner__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  }

  .page-contact .service-band__track {
    grid-template-columns: repeat(4, 1fr);
  }

  .page-contact .service-band__seg {
    border-bottom: none;
    border-right: 1px solid var(--contact-softline);
    padding: 20px 22px;
  }

  .page-contact .service-band__seg:first-child {
    padding-left: 0;
  }

  .page-contact .service-band__seg:last-child {
    border-right: none;
    padding-right: 0;
  }

  .page-contact .service-band__seg:nth-child(odd),
  .page-contact .service-band__seg:nth-child(even) {
    padding-left: 22px;
    padding-right: 22px;
  }

  .page-contact .service-band__seg:first-child {
    padding-left: 0;
  }

  .page-contact .service-band__seg:last-child {
    padding-right: 0;
  }
}

@media (min-width: 1200px) {
  .page-contact .contact-ready__split {
    grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
    gap: 56px;
  }

  .page-contact .flow-wrap {
    grid-template-columns: minmax(0, 8fr) minmax(0, 4fr);
    gap: 56px;
  }

  .page-contact .data-report__grid {
    grid-template-columns: minmax(0, 8fr) minmax(0, 4fr);
    gap: 56px;
  }

  .page-contact .partner__grid {
    grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
    gap: 56px;
  }
}

/* 减少动效偏好 */

@media (prefers-reduced-motion: reduce) {
  .page-contact .flow-node,
  .page-contact .partner__item {
    transition: none;
  }

  .page-contact .partner__item:hover {
    transform: none;
  }
}
<<<END>>>