.page-contact {
  --pc-scope-pad: clamp(20px, 4vw, 36px);
  display: block;
}

/* ---------- 页面头部 ---------- */
.page-contact .contact-head {
  position: relative;
  padding: clamp(30px, 6vw, 68px) 0 clamp(22px, 4vw, 36px);
}
.page-contact .contact-head::after {
  content: "";
  position: absolute;
  top: -60px;
  right: -140px;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle at 50% 50%, rgba(47, 230, 200, 0.13), transparent 66%);
  pointer-events: none;
  z-index: 0;
}
.page-contact .contact-head > * {
  position: relative;
  z-index: 1;
}
.page-contact .contact-head h1 {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(29px, 6vw, 54px);
  line-height: 1.14;
  letter-spacing: -0.02em;
  color: var(--white);
  margin: 14px 0 0;
  max-width: 18ch;
}
.page-contact .contact-head .lede {
  max-width: 60ch;
  margin-top: 18px;
}
.page-contact .head-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

/* ---------- 头图 ---------- */
.page-contact .head-media {
  position: relative;
  margin: 0 0 clamp(30px, 5vw, 58px);
  border: 1px solid var(--grid-line);
  overflow: hidden;
  background: var(--pitch-800);
}
.page-contact .head-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(142deg, rgba(5, 13, 10, 0.74) 0%, rgba(5, 13, 10, 0.12) 46%, rgba(255, 122, 46, 0.16) 100%);
  pointer-events: none;
}
.page-contact .head-media .media__img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 2 / 1;
  object-fit: cover;
}

/* ---------- 主布局 ---------- */
.page-contact .contact-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(32px, 5vw, 56px);
  padding-bottom: clamp(56px, 8vw, 104px);
}

@media (min-width: 1024px) {
  .page-contact .contact-layout {
    grid-template-columns: minmax(0, 1fr) minmax(304px, 372px);
    align-items: start;
  }
  .page-contact .contact-rail {
    position: sticky;
    top: calc(var(--header-h) + 24px);
  }
}

/* ---------- 章节外壳 ---------- */
.page-contact .section {
  margin-bottom: clamp(44px, 6vw, 76px);
}
.page-contact .section:last-child {
  margin-bottom: 0;
}
.page-contact .section__head {
  margin-bottom: 18px;
}
.page-contact .section__title {
  font-family: var(--font-head);
  font-size: clamp(22px, 3.4vw, 32px);
  line-height: 1.24;
  letter-spacing: -0.01em;
  color: var(--white);
  margin: 8px 0 0;
}
.page-contact .prose {
  margin: 0;
  max-width: 62ch;
}

/* ---------- 四类事项 ---------- */
.page-contact .matter-list {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
}
@media (min-width: 760px) {
  .page-contact .matter-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}
.page-contact .matter {
  position: relative;
  border: 1px solid var(--grid-line);
  background: var(--pitch-800);
  padding: 22px 20px 20px 26px;
  transition: border-color 200ms var(--ease), transform 200ms var(--ease);
}
.page-contact .matter::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--cyan-dim);
}
.page-contact .matter--fix::before {
  background: var(--orange);
}
.page-contact .matter--idea::before {
  background: var(--cyan);
}
.page-contact .matter--group::before {
  background: var(--silver-dark);
}
.page-contact .matter:hover {
  border-color: var(--cyan-dim);
  transform: translateY(-2px);
}
.page-contact .matter__top {
  display: flex;
  align-items: baseline;
  gap: 10px;
}
.page-contact .matter__idx {
  color: var(--cyan);
  font-size: 13px;
}
.page-contact .matter--fix .matter__idx {
  color: var(--orange);
}
.page-contact .matter__title {
  font-family: var(--font-head);
  font-size: 18px;
  line-height: 1.3;
  color: var(--white);
  margin: 0;
}
.page-contact .matter__desc {
  margin: 10px 0 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--silver);
}
.page-contact .matter__need {
  margin: 14px 0 0;
  padding-top: 12px;
  border-top: 1px dashed var(--grid-line);
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--silver);
}

/* ---------- 表单 ---------- */
.page-contact .fb-form {
  margin-top: 26px;
  border: 1px solid var(--grid-line);
  background: var(--pitch-800);
  padding: var(--pc-scope-pad);
}
.page-contact .field {
  margin-bottom: 24px;
}
.page-contact .field__label {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--silver);
  margin-bottom: 10px;
}
.page-contact .field__label .num {
  color: var(--cyan);
  font-size: 12px;
}
.page-contact .field__hint {
  margin: 9px 0 0;
  font-size: 13px;
  line-height: 1.65;
  color: var(--silver-dark);
}
.page-contact .field__meter {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 6px 16px;
  margin: 9px 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--silver-dark);
}
.page-contact .fb-form input[type="text"],
.page-contact .fb-form input[type="email"],
.page-contact .fb-form textarea {
  display: block;
  width: 100%;
  box-sizing: border-box;
  background: var(--pitch-900);
  border: 1px solid var(--grid-line);
  border-radius: 0;
  color: var(--white);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  padding: 13px 15px;
  transition: border-color 160ms var(--ease), background-color 160ms var(--ease);
}
.page-contact .fb-form input::placeholder,
.page-contact .fb-form textarea::placeholder {
  color: var(--silver-dark);
}
.page-contact .fb-form input:focus,
.page-contact .fb-form textarea:focus {
  outline: none;
  border-color: var(--cyan);
  background: var(--pitch-700);
}
.page-contact .fb-form input:user-invalid,
.page-contact .fb-form textarea:user-invalid {
  border-color: var(--orange);
}
.page-contact .fb-form textarea {
  min-height: 150px;
  resize: vertical;
}

.page-contact .chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.page-contact .chip {
  position: relative;
  display: inline-flex;
}
.page-contact .chip input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  margin: 0;
  pointer-events: none;
}
.page-contact .chip__label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 15px;
  border: 1px solid var(--grid-line);
  background: var(--pitch-900);
  color: var(--silver);
  font-size: 14px;
  line-height: 1.2;
  cursor: pointer;
  user-select: none;
  transition: border-color 160ms var(--ease), color 160ms var(--ease), background-color 160ms var(--ease);
}
.page-contact .chip__label:hover {
  border-color: var(--cyan-dim);
  color: var(--white);
}
.page-contact .chip input:checked + .chip__label {
  border-color: var(--cyan);
  background: var(--cyan);
  color: var(--pitch-900);
}
.page-contact .chip input:focus-visible + .chip__label {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

.page-contact .form-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px 18px;
  margin-top: 28px;
  padding-top: 24px;
  border-top: 1px solid var(--grid-line);
}
.page-contact .submit-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  border: 1px solid var(--cyan);
  background: var(--cyan);
  color: var(--pitch-900);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  padding: 14px 32px;
  cursor: pointer;
  transition: background-color 160ms var(--ease), color 160ms var(--ease);
}
.page-contact .submit-btn:hover {
  background: transparent;
  color: var(--cyan);
}
.page-contact .form-actions__note {
  font-size: 13px;
  line-height: 1.65;
  color: var(--silver-dark);
  max-width: 34ch;
}

/* ---------- 合作咨询 ---------- */
.page-contact .coop-grid {
  display: grid;
  gap: 14px;
  margin-top: 26px;
}
@media (min-width: 760px) {
  .page-contact .coop-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}
.page-contact .coop {
  border: 1px solid var(--grid-line);
  border-top: 2px solid var(--cyan-dim);
  background: var(--pitch-800);
  padding: 22px 20px;
}
.page-contact .coop:nth-child(2) {
  border-top-color: var(--orange);
}
.page-contact .coop:nth-child(3) {
  border-top-color: var(--silver-dark);
}
.page-contact .coop__title {
  font-family: var(--font-head);
  font-size: 16.5px;
  line-height: 1.35;
  color: var(--white);
  margin: 0 0 10px;
}
.page-contact .coop__desc {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--silver);
}
.page-contact .coop-prep {
  margin-top: 22px;
  border: 1px solid var(--grid-line);
  background: var(--pitch-900);
  padding: 22px 20px;
}
.page-contact .coop-prep__list {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  display: grid;
  gap: 11px;
}
.page-contact .coop-prep__list li {
  display: grid;
  grid-template-columns: 26px minmax(0, 1fr);
  gap: 10px;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--silver);
}
.page-contact .coop-prep__list .num {
  color: var(--cyan);
  font-size: 12px;
  padding-top: 4px;
}

/* ---------- 右侧信息栏 ---------- */
.page-contact .contact-rail {
  display: grid;
  gap: 22px;
}
.page-contact .rail-card {
  position: relative;
  border: 1px solid var(--grid-line);
  background: var(--pitch-700);
  padding: 26px 22px 22px;
  box-shadow: 0 20px 44px rgba(0, 0, 0, 0.36);
}
.page-contact .rail-card::before {
  content: "";
  position: absolute;
  left: -1px;
  right: -1px;
  top: -1px;
  height: 2px;
  background: linear-gradient(90deg, var(--cyan) 0%, var(--cyan-dim) 52%, rgba(47, 230, 200, 0) 100%);
}
.page-contact .rail-card__title {
  font-family: var(--font-head);
  font-size: 19px;
  line-height: 1.3;
  color: var(--white);
  margin: 8px 0 6px;
}
.page-contact .rail-card .contact-list {
  margin: 0;
}
.page-contact .rail-card .contact-item {
  padding: 14px 0;
  border-bottom: 1px solid var(--grid-line);
}
.page-contact .rail-card .contact-item:last-child {
  border-bottom: none;
  padding-bottom: 0;
}
.page-contact .rail-card .contact-item__value {
  word-break: break-word;
}
.page-contact .rail-card__note {
  margin: 18px 0 0;
  padding-top: 16px;
  border-top: 1px dashed var(--grid-line);
  font-size: 13px;
  line-height: 1.7;
  color: var(--silver);
}

/* ---------- 处理流程 ---------- */
.page-contact .rail-flow-block {
  border: 1px solid var(--grid-line);
  background: var(--pitch-800);
  padding: 24px 22px 22px;
}
.page-contact .rail-flow-block__title {
  font-family: var(--font-head);
  font-size: 18px;
  line-height: 1.35;
  color: var(--white);
  margin: 8px 0 22px;
}
.page-contact .rail-flow {
  list-style: none;
  margin: 0;
  padding: 0;
  position: relative;
}
.page-contact .rail-flow::before {
  content: "";
  position: absolute;
  left: 15px;
  top: 18px;
  bottom: 28px;
  width: 1px;
  background: linear-gradient(180deg, var(--cyan) 0%, var(--grid-line) 38%, var(--grid-line) 100%);
}
.page-contact .rail-flow__step {
  position: relative;
  display: grid;
  grid-template-columns: 32px minmax(0, 1fr);
  gap: 14px;
  padding-bottom: 22px;
}
.page-contact .rail-flow__step:last-child {
  padding-bottom: 0;
}
.page-contact .rail-flow__num {
  width: 32px;
  height: 32px;
  display: grid;
  place-items: center;
  background: var(--pitch-900);
  border: 1px solid var(--grid-line);
  color: var(--cyan);
  font-size: 12px;
  position: relative;
  z-index: 1;
}
.page-contact .rail-flow__step:last-child .rail-flow__num {
  border-color: var(--orange);
  color: var(--orange);
}
.page-contact .rail-flow__title {
  font-family: var(--font-head);
  font-size: 15.5px;
  line-height: 1.35;
  color: var(--white);
  margin: 5px 0 6px;
}
.page-contact .rail-flow__desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--silver);
}
.page-contact .rail-flow__eta {
  margin: 9px 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--silver-dark);
}

.page-contact .rail-media {
  margin: 22px 0 0;
  border: 1px solid var(--grid-line);
  overflow: hidden;
  background: var(--pitch-900);
}
.page-contact .rail-media .media__img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 10 / 7;
  object-fit: cover;
}
.page-contact .rail-media__caption {
  padding: 10px 12px;
  border-top: 1px solid var(--grid-line);
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--silver-dark);
}

/* ---------- 底部收束条 ---------- */
.page-contact .contact-foot {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 24px;
  justify-content: space-between;
  border-top: 1px solid var(--grid-line);
  padding: 18px 0 30px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--silver-dark);
}

/* ---------- 响应式微调 ---------- */
@media (max-width: 767px) {
  .page-contact .contact-head::after {
    display: none;
  }
  .page-contact .head-media .media__img {
    aspect-ratio: 16 / 10;
  }
  .page-contact .matter {
    padding: 20px 16px 18px 22px;
  }
  .page-contact .rail-card,
  .page-contact .rail-flow-block {
    padding-left: 18px;
    padding-right: 18px;
  }
  .page-contact .contact-foot {
    justify-content: flex-start;
  }
}
</main>
<<<END>>>