.page-contact {
  background: var(--ink-900);
  color: var(--text);
  --pc-panel: linear-gradient(180deg, var(--ink-800) 0%, rgba(5, 16, 26, .92) 100%);
  --pc-field-idle: rgba(167, 186, 198, .6);
}

.page-contact .breadcrumb__link {
  color: var(--text-muted);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 240ms var(--ease), border-color 240ms var(--ease);
}

.page-contact .breadcrumb__link:hover,
.page-contact .breadcrumb__link:focus-visible {
  color: var(--coral-soft);
  border-bottom-color: var(--coral-soft);
}

.page-contact .inline-link {
  color: var(--text-muted);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  transition: color 240ms var(--ease), border-color 240ms var(--ease);
}

.page-contact .inline-link:hover,
.page-contact .inline-link:focus-visible {
  color: var(--coral-soft);
  border-bottom-color: var(--coral-soft);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: clamp(24px, 5vw, 52px) 0 clamp(28px, 4vw, 46px);
  border-bottom: 1px solid var(--line);
}

.page-contact .contact-hero__bg {
  position: absolute;
  inset: 0;
  z-index: -1;
}

.page-contact .contact-hero__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .34;
  filter: saturate(.72);
}

.page-contact .contact-hero__bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(120% 90% at 10% 0%, rgba(242, 107, 58, .22), transparent 62%),
    linear-gradient(180deg, rgba(5, 16, 26, .58) 0%, rgba(5, 16, 26, .9) 58%, var(--ink-900) 100%);
}

.page-contact .contact-hero__inner {
  position: relative;
}

.page-contact .contact-hero h1 {
  margin: 14px 0 16px;
}

.page-contact .contact-hero__lead {
  max-width: 60ch;
  margin: 0;
  color: var(--text-muted);
  font-size: 16px;
  line-height: 1.75;
}

.page-contact .contact-hero__mail-line {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin: 22px 0 0;
  padding: 9px 16px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--coral);
  background: rgba(18, 48, 63, .62);
  font-size: 14px;
  letter-spacing: .06em;
  color: var(--paper);
  overflow-wrap: anywhere;
}

/* ---------- 分屏主体 ---------- */
.page-contact .contact-split {
  padding: clamp(34px, 5vw, 60px) 0 clamp(38px, 5vw, 64px);
}

.page-contact .contact-split__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(30px, 5vw, 48px);
}

.page-contact .contact-section-title {
  margin: 0 0 18px;
  font-family: var(--font-display);
  font-size: clamp(1.2rem, 2.3vw, 1.55rem);
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: -.01em;
}

.page-contact .contact-section-title--lg {
  font-size: clamp(1.45rem, 3vw, 2rem);
  max-width: 22ch;
}

/* 渠道卡片 */
.page-contact .contact-channels {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.page-contact .channel-card {
  position: relative;
  background: var(--ink-800);
  border: 1px solid var(--line);
}

.page-contact .channel-card--mail {
  box-shadow: inset 3px 0 0 var(--coral);
  background: var(--pc-panel);
}

.page-contact .channel-card__head {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 16px;
  background: var(--ink-700);
  border-bottom: 1px solid var(--line);
  clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%, 0 0);
}

.page-contact .channel-card__head .status-dot {
  margin-left: auto;
}

.page-contact .channel-card__no {
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--coral);
}

.page-contact .channel-card__name {
  font-size: 14px;
  font-weight: 600;
  letter-spacing: .04em;
}

.page-contact .channel-card__body {
  padding: 18px 18px 22px;
}

.page-contact .channel-card__value {
  margin: 0 0 10px;
  font-size: clamp(1rem, 2.6vw, 1.3rem);
  line-height: 1.4;
  color: var(--coral-soft);
  overflow-wrap: anywhere;
}

.page-contact .channel-card--phone .channel-card__value,
.page-contact .channel-card--addr .channel-card__value {
  color: var(--paper);
  font-family: var(--font-body);
  font-weight: 600;
}

.page-contact .channel-card--addr .channel-card__value {
  font-size: clamp(.95rem, 2.2vw, 1.05rem);
  line-height: 1.6;
}

.page-contact .channel-card__use {
  margin: 0 0 12px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--text-muted);
}

.page-contact .channel-card__meta {
  margin: 0;
  padding-top: 10px;
  border-top: 1px dashed var(--line);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .05em;
  color: var(--amber);
  line-height: 1.6;
}

/* 右侧表单 */
.page-contact .contact-side__lead {
  margin: 0 0 20px;
  color: var(--text-muted);
  font-size: 15px;
}

.page-contact .contact-form {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.page-contact .field {
  display: block;
}

.page-contact .field__label {
  display: block;
  margin-bottom: 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--text-muted);
}

.page-contact .field__input {
  display: block;
  width: 100%;
  padding: 11px 12px;
  background: var(--ink-800);
  border: 1px solid var(--line);
  border-bottom: 2px solid var(--line);
  border-radius: 0;
  color: var(--text);
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.5;
  appearance: none;
  transition: border-color 240ms var(--ease), background 240ms var(--ease);
}

.page-contact .field__input::placeholder {
  color: var(--pc-field-idle);
}

.page-contact .field__input:focus {
  outline: none;
  background: var(--ink-700);
  border-color: var(--coral);
}

.page-contact .field__input--area {
  min-height: 96px;
  resize: vertical;
}

.page-contact .contact-form__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-top: 4px;
}

.page-contact .contact-form__note {
  flex: 1 1 190px;
  font-size: 12px;
  line-height: 1.6;
  color: var(--text-muted);
}

/* 服务时段刻度 */
.page-contact .hours {
  margin-top: 26px;
  padding: 16px 18px 18px;
  border: 1px solid var(--line);
  background: rgba(10, 29, 43, .72);
}

.page-contact .hours__label {
  margin: 0 0 14px;
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--amber);
}

.page-contact .hours__track {
  position: relative;
  height: 6px;
  background: rgba(31, 76, 94, .8);
}

.page-contact .hours__live {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 37.5%;
  width: 37.5%;
  background: linear-gradient(90deg, var(--coral) 0%, var(--coral-soft) 100%);
}

.page-contact .hours__live::after {
  content: "";
  position: absolute;
  right: -3px;
  top: -5px;
  width: 2px;
  height: 16px;
  background: var(--mint);
}

.page-contact .hours__ticks {
  display: flex;
  justify-content: space-between;
  margin-top: 8px;
  font-size: 11px;
  letter-spacing: .06em;
  color: var(--text-muted);
}

.page-contact .hours__note {
  margin: 12px 0 0;
  font-size: 13px;
  line-height: 1.65;
  color: var(--text-muted);
}

.page-contact .contact-side__alt {
  margin: 18px 0 0;
  font-size: 13px;
}

/* ---------- 写邮件技巧 ---------- */
.page-contact .contact-tips {
  padding: clamp(38px, 6vw, 72px) 0;
  border-top: 1px solid var(--line);
  background: linear-gradient(180deg, var(--ink-900) 0%, var(--ink-800) 100%);
}

.page-contact .contact-tips__head {
  margin-bottom: 26px;
}

.page-contact .contact-tips__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 22px;
}

.page-contact .tip {
  padding-top: 16px;
  border-top: 1px solid var(--line);
}

.page-contact .tip__no {
  display: block;
  margin-bottom: 8px;
  font-size: 12px;
  letter-spacing: .2em;
  color: var(--violet);
}

.page-contact .tip h3 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 700;
  line-height: 1.35;
}

.page-contact .tip p {
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--text-muted);
}

.page-contact .tip-sample {
  position: relative;
  margin-top: 28px;
  padding: 18px 20px 20px;
  background: var(--paper);
  color: var(--ink-900);
}

.page-contact .tip-sample::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 72px;
  height: 4px;
  background: var(--coral);
}

.page-contact .tip-sample__label {
  margin: 0 0 8px;
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--ink-800);
  opacity: .72;
}

.page-contact .tip-sample__line {
  margin: 0;
  font-size: clamp(.86rem, 2.4vw, 1.02rem);
  line-height: 1.6;
  overflow-wrap: anywhere;
}

/* ---------- 合作咨询 ---------- */
.page-contact .contact-coop {
  padding: clamp(38px, 6vw, 72px) 0;
  border-top: 1px solid var(--line);
  background:
    radial-gradient(90% 70% at 88% 0%, rgba(123, 108, 246, .14), transparent 60%),
    var(--ink-900);
}

.page-contact .contact-coop__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 44px);
}

.page-contact .contact-coop__lead {
  margin: 0 0 6px;
  color: var(--text-muted);
  font-size: 15px;
  line-height: 1.75;
}

.page-contact .coop-block {
  margin-top: 20px;
  padding-left: 16px;
  border-left: 2px solid var(--line);
  transition: border-color 240ms var(--ease);
}

.page-contact .coop-block:hover {
  border-left-color: var(--coral);
}

.page-contact .coop-block h3 {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
}

.page-contact .coop-block p {
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--text-muted);
}

.page-contact .coop-note {
  margin: 22px 0 0;
  font-size: 12px;
  letter-spacing: .05em;
  line-height: 1.8;
  color: var(--amber);
  overflow-wrap: anywhere;
}

.page-contact .contact-coop__figure {
  margin: 0;
}

.page-contact .contact-coop__figure .media-frame {
  border: 1px solid var(--line);
  background: var(--ink-800);
}

.page-contact .contact-coop__caption {
  margin-top: 10px;
  font-size: 12px;
  line-height: 1.7;
  color: var(--text-muted);
}

/* ---------- 延伸入口 ---------- */
.page-contact .contact-more {
  padding: clamp(34px, 5vw, 60px) 0 clamp(44px, 6vw, 76px);
  border-top: 1px solid var(--line);
}

.page-contact .contact-more__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
}

.page-contact .more-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 16px 18px;
  border: 1px solid var(--line);
  background: var(--ink-800);
  color: var(--text);
  text-decoration: none;
  font-size: 15px;
  transition: border-color 240ms var(--ease), background 240ms var(--ease), color 240ms var(--ease);
}

.page-contact .more-link:hover,
.page-contact .more-link:focus-visible {
  border-color: var(--coral);
  background: var(--ink-700);
  color: var(--paper);
}

.page-contact .more-link__text {
  min-width: 0;
}

.page-contact .more-link__arrow {
  flex: none;
  font-family: var(--font-mono);
  color: var(--coral);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-contact .contact-tips__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
  }

  .page-contact .contact-more__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-contact .contact-split__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
    gap: 0;
  }

  .page-contact .contact-side {
    padding-left: clamp(24px, 3.4vw, 52px);
    border-left: 1px solid var(--line);
  }

  .page-contact .contact-channels {
    padding-right: clamp(24px, 3.4vw, 52px);
  }

  .page-contact .contact-coop__grid {
    grid-template-columns: minmax(0, 1.18fr) minmax(0, .82fr);
    align-items: start;
  }

  .page-contact .contact-side__alt {
    margin-top: 22px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .field__input,
  .page-contact .more-link,
  .page-contact .coop-block,
  .page-contact .breadcrumb__link,
  .page-contact .inline-link {
    transition: none;
  }
}
<<<END>>>