.page-contact {
  --contact-tint-cyan: rgba(34, 224, 224, .10);
  --contact-tint-magenta: rgba(255, 46, 126, .10);
  --contact-panel: rgba(22, 34, 74, .48);
  --contact-deep: rgba(11, 18, 38, .82);
  display: block;
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  padding: clamp(26px, 5vw, 60px) 0 clamp(34px, 6vw, 78px);
  overflow: hidden;
  border-bottom: 1px solid var(--line-soft);
}

.page-contact .contact-hero::before {
  content: "";
  position: absolute;
  top: -32%;
  right: -26%;
  width: 80%;
  height: 158%;
  background: linear-gradient(140deg, var(--contact-tint-cyan), var(--contact-tint-magenta) 52%, transparent 78%);
  clip-path: polygon(26% 0, 100% 0, 100% 100%, 0 66%);
  pointer-events: none;
}

.page-contact .contact-hero__grid {
  position: relative;
  display: grid;
  gap: clamp(26px, 4vw, 48px);
  align-items: center;
}

.page-contact .contact-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-contact .contact-hero__flags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .contact-hero__media {
  position: relative;
  display: block;
  margin: 0;
  border: 1px solid var(--line-cyan);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--ink-800);
  box-shadow: 0 30px 70px -44px rgba(34, 224, 224, .7);
}

.page-contact .contact-hero__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 9 / 7;
  object-fit: cover;
}

.page-contact .contact-hero__media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(180deg, rgba(234, 240, 255, .05) 0 1px, transparent 1px 4px);
  pointer-events: none;
}

/* ---------- 两条通道 ---------- */
.page-contact .contact-routes__grid {
  align-items: start;
  margin-top: clamp(22px, 3vw, 34px);
}

.page-contact .channel {
  position: relative;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  background: linear-gradient(180deg, var(--contact-deep), rgba(5, 6, 14, .94));
  overflow: hidden;
  transition: border-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-contact .channel--cyan { border-left: 3px solid var(--cyan); }
.page-contact .channel--magenta { border-left: 3px solid var(--magenta); }

.page-contact .channel--cyan:hover { border-color: var(--line-cyan); transform: translateY(-3px); }
.page-contact .channel--magenta:hover { border-color: var(--line-magenta); transform: translateY(-3px); }

.page-contact .channel::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .42s var(--ease);
}

.page-contact .channel--cyan::after { background: linear-gradient(90deg, var(--cyan), transparent); }
.page-contact .channel--magenta::after { background: linear-gradient(90deg, var(--magenta), transparent); }
.page-contact .channel:hover::after,
.page-contact .channel[open]::after { transform: scaleX(1); }

.page-contact .channel__summary {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 4px 16px;
  padding: 20px 20px 16px;
  cursor: pointer;
  list-style: none;
}

.page-contact .channel__summary::-webkit-details-marker { display: none; }

.page-contact .channel__index {
  grid-column: 1;
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--muted);
}

.page-contact .channel--cyan .channel__index { color: var(--cyan); }
.page-contact .channel--magenta .channel__index { color: var(--magenta); }

.page-contact .channel__name {
  grid-column: 1;
  font-family: var(--font-head);
  font-size: clamp(19px, 2.4vw, 26px);
  font-weight: 700;
  letter-spacing: -.02em;
  color: var(--paper);
}

.page-contact .channel__toggle {
  grid-column: 2;
  grid-row: 1 / span 2;
  position: relative;
  width: 26px;
  height: 26px;
  border: 1px solid var(--line-soft);
  border-radius: 50%;
  transition: border-color var(--dur) var(--ease);
}

.page-contact .channel__toggle::before,
.page-contact .channel__toggle::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  background: var(--paper);
  transform: translate(-50%, -50%);
  transition: transform var(--dur) var(--ease), opacity var(--dur) var(--ease);
}

.page-contact .channel__toggle::before { width: 10px; height: 1.5px; }
.page-contact .channel__toggle::after { width: 1.5px; height: 10px; }

.page-contact .channel--cyan[open] .channel__toggle { border-color: var(--cyan); }
.page-contact .channel--magenta[open] .channel__toggle { border-color: var(--magenta); }
.page-contact .channel[open] .channel__toggle::after { transform: translate(-50%, -50%) scaleY(0); opacity: 0; }

.page-contact .channel__body {
  padding: 16px 20px 22px;
  border-top: 1px dashed var(--line-soft);
}

.page-contact .channel__mail {
  margin: 0 0 8px;
  font-size: clamp(15px, 1.9vw, 19px);
  letter-spacing: .01em;
  color: var(--cyan);
  word-break: break-all;
}

.page-contact .channel--magenta .channel__mail { color: var(--magenta); }

.page-contact .channel__note {
  margin: 0 0 16px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
}

.page-contact .channel__list {
  display: grid;
  gap: 10px;
  margin: 0 0 20px;
  padding: 0;
  list-style: none;
}

.page-contact .channel__list li {
  position: relative;
  padding-left: 18px;
  font-size: 14.5px;
  line-height: 1.65;
  color: var(--paper);
}

.page-contact .channel__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .66em;
  width: 8px;
  height: 1.5px;
  background: var(--muted);
}

.page-contact .channel--cyan .channel__list li::before { background: var(--cyan); }
.page-contact .channel--magenta .channel__list li::before { background: var(--magenta); }

.page-contact .contact-routes__aside {
  margin: clamp(22px, 3vw, 32px) 0 0;
  padding: 14px 18px;
  border-left: 2px solid var(--line-cyan);
  background: rgba(22, 34, 74, .28);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
}

.page-contact .contact-routes__aside a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(34, 224, 224, .35);
}

.page-contact .contact-routes__aside a:hover { border-bottom-color: var(--cyan); }

/* ---------- 反馈清单 ---------- */
.page-contact .contact-feedback__grid {
  display: grid;
  gap: clamp(24px, 4vw, 44px);
  align-items: start;
}

.page-contact .contact-feedback__media {
  position: relative;
  display: block;
  margin: 0;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--ink-800);
}

.page-contact .contact-feedback__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.page-contact .feedback-list {
  margin: clamp(20px, 3vw, 30px) 0 0;
  padding: 0;
  list-style: none;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  background: rgba(11, 18, 38, .6);
  overflow: hidden;
}

.page-contact .feedback-item {
  position: relative;
  display: grid;
  gap: 5px 20px;
  padding: 16px 18px;
  border-bottom: 1px solid var(--line-soft);
  transition: background var(--dur) var(--ease);
}

.page-contact .feedback-item:last-child { border-bottom: 0; }

.page-contact .feedback-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--cyan);
  transform: scaleY(0);
  transform-origin: top;
  transition: transform var(--dur) var(--ease);
}

.page-contact .feedback-item:hover { background: var(--contact-tint-cyan); }
.page-contact .feedback-item:hover::before { transform: scaleY(1); }

.page-contact .feedback-item__label {
  font-size: 12.5px;
  letter-spacing: .05em;
  color: var(--cyan);
}

.page-contact .feedback-item__desc {
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--paper);
}

.page-contact .contact-feedback__note {
  margin: 18px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
}

.page-contact .contact-feedback__note a {
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px solid var(--line-soft);
}

.page-contact .contact-feedback__note a:hover { color: var(--cyan); border-bottom-color: var(--line-cyan); }

/* ---------- 处理流程 ---------- */
.page-contact .flow {
  margin: clamp(24px, 4vw, 40px) 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .flow__step {
  position: relative;
  padding: 0 0 28px 52px;
}

.page-contact .flow__step::before {
  content: "";
  position: absolute;
  left: 17px;
  top: 38px;
  bottom: 0;
  width: 1px;
  background: linear-gradient(180deg, var(--line-cyan), transparent);
}

.page-contact .flow__step:last-child { padding-bottom: 0; }
.page-contact .flow__step:last-child::before { display: none; }

.page-contact .flow__num {
  position: absolute;
  left: 0;
  top: 0;
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border: 1px solid var(--line-cyan);
  border-radius: 50%;
  background: rgba(34, 224, 224, .08);
  font-size: 12px;
  color: var(--cyan);
}

.page-contact .flow__title {
  margin: 7px 0 6px;
  font-family: var(--font-head);
  font-size: 19px;
  font-weight: 700;
  letter-spacing: -.01em;
  color: var(--paper);
}

.page-contact .flow__step p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--muted);
}

/* ---------- 值守时段 ---------- */
.page-contact .contact-hours__grid {
  display: grid;
  gap: clamp(22px, 3.4vw, 40px);
  align-items: center;
}

.page-contact .contact-hours__panel p {
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.78;
  color: var(--muted);
}

.page-contact .contact-hours__panel p:last-child { margin-bottom: 0; }

.page-contact .hours-bar { margin-bottom: 22px; }

.page-contact .hours-bar__track {
  position: relative;
  height: 10px;
  border-radius: 999px;
  background: rgba(139, 155, 196, .16);
  overflow: hidden;
}

.page-contact .hours-bar__window {
  position: absolute;
  left: 37.5%;
  top: 0;
  bottom: 0;
  width: 37.5%;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--cyan), var(--amber));
  box-shadow: 0 0 18px rgba(255, 182, 39, .35);
}

.page-contact .hours-bar__ticks {
  position: relative;
  height: 18px;
  margin: 8px 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .hours-bar__ticks li {
  position: absolute;
  top: 0;
  transform: translateX(-50%);
  font-size: 11px;
  color: var(--muted);
}

.page-contact .hours-bar__ticks li:nth-child(1) { left: 0; transform: none; }
.page-contact .hours-bar__ticks li:nth-child(2) { left: 37.5%; }
.page-contact .hours-bar__ticks li:nth-child(3) { left: 75%; }
.page-contact .hours-bar__ticks li:nth-child(4) { left: 100%; transform: translateX(-100%); }

.page-contact .hours-legend {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}

.page-contact .hours-legend__item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--muted);
}

.page-contact .hours-legend__swatch {
  flex: 0 0 auto;
  width: 22px;
  height: 4px;
  border-radius: 999px;
}

.page-contact .hours-legend__swatch--live { background: linear-gradient(90deg, var(--cyan), var(--amber)); }
.page-contact .hours-legend__swatch--queue { background: rgba(139, 155, 196, .4); }

/* ---------- 合作对接 ---------- */
.page-contact .contact-partners__grid { margin-top: clamp(22px, 3vw, 34px); }

.page-contact .partner-card {
  position: relative;
  padding: 22px 22px 24px;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  background: linear-gradient(160deg, var(--contact-panel), rgba(11, 18, 38, .88));
  transition: border-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-contact .partner-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 22px;
  right: 22px;
  height: 1px;
  background: linear-gradient(90deg, var(--magenta), transparent);
  opacity: .55;
}

.page-contact .partner-card:hover {
  border-color: var(--line-magenta);
  transform: translateY(-3px);
}

.page-contact .partner-card__title {
  margin: 0 0 10px;
  font-family: var(--font-head);
  font-size: 19px;
  font-weight: 700;
  letter-spacing: -.01em;
  color: var(--paper);
}

.page-contact .partner-card p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--muted);
}

.page-contact .partners-cta {
  display: grid;
  gap: 12px;
  margin-top: clamp(22px, 3vw, 32px);
  padding: 22px 22px 24px;
  border: 1px solid var(--line-magenta);
  border-radius: var(--radius);
  background: linear-gradient(120deg, var(--contact-tint-magenta), rgba(5, 6, 14, .6));
  justify-items: start;
}

.page-contact .partners-cta__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--paper);
}

.page-contact .partners-cta__mail {
  margin: 0;
  font-size: clamp(15px, 2vw, 19px);
  color: var(--magenta);
  word-break: break-all;
}

/* ---------- 运营信息终端 ---------- */
.page-contact .terminal {
  border: 1px solid var(--line-cyan);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(5, 6, 14, .95), rgba(11, 18, 38, .95));
  overflow: hidden;
  box-shadow: 0 26px 70px -46px rgba(34, 224, 224, .85);
}

.page-contact .terminal__bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--line-soft);
  background: rgba(22, 34, 74, .5);
}

.page-contact .terminal__dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
}

.page-contact .terminal__dot--c { background: var(--cyan); }
.page-contact .terminal__dot--m { background: var(--magenta); }
.page-contact .terminal__dot--a { background: var(--amber); }

.page-contact .terminal__bar-title {
  margin-left: auto;
  font-size: 11.5px;
  color: var(--muted);
}

.page-contact .terminal__body {
  margin: 0;
  padding: 22px 20px 26px;
  display: grid;
  gap: 16px;
}

.page-contact .terminal__row { display: grid; gap: 4px; }

.page-contact .terminal__key {
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--cyan);
}

.page-contact .terminal__val {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.68;
  color: var(--paper);
  word-break: break-all;
}

/* ---------- 收束 ---------- */
.page-contact .contact-tail {
  padding: clamp(28px, 4vw, 48px) 0 clamp(22px, 3vw, 34px);
}

.page-contact .contact-tail__line {
  margin: 0 0 26px;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--muted);
}

.page-contact .contact-tail__line a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(34, 224, 224, .35);
}

.page-contact .contact-tail__line a:hover { border-bottom-color: var(--cyan); }

.page-contact .light-band {
  height: 3px;
  border-radius: 999px;
  background: linear-gradient(90deg, transparent, var(--cyan) 22%, var(--magenta) 78%, transparent);
  opacity: .75;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-contact .feedback-item {
    grid-template-columns: minmax(140px, 176px) 1fr;
    align-items: baseline;
    padding: 18px 20px;
  }
}

@media (min-width: 720px) {
  .page-contact .terminal__row {
    grid-template-columns: 132px 1fr;
    gap: 18px;
    align-items: baseline;
  }

  .page-contact .partners-cta {
    grid-template-columns: 1fr auto;
    align-items: center;
    gap: 8px 20px;
  }

  .page-contact .partners-cta__text { grid-column: 1; }
  .page-contact .partners-cta__mail { grid-column: 1; }
  .page-contact .partners-cta .btn { grid-column: 2; grid-row: 1 / span 2; }
}

@media (min-width: 900px) {
  .page-contact .contact-hero__grid {
    grid-template-columns: minmax(0, 1.06fr) minmax(0, .94fr);
  }

  .page-contact .contact-feedback__grid {
    grid-template-columns: minmax(0, .84fr) minmax(0, 1.16fr);
    align-items: start;
  }

  .page-contact .contact-hours__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
  }

  .page-contact .flow {
    max-width: 780px;
  }
}

@media (min-width: 1080px) {
  .page-contact .terminal__body { padding: 28px 28px 32px; }
  .page-contact .channel__summary { padding: 24px 24px 18px; }
  .page-contact .channel__body { padding: 18px 24px 26px; }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .channel,
  .page-contact .channel::after,
  .page-contact .channel__toggle,
  .page-contact .channel__toggle::before,
  .page-contact .channel__toggle::after,
  .page-contact .partner-card,
  .page-contact .feedback-item,
  .page-contact .feedback-item::before {
    transition: none;
  }

  .page-contact .channel--cyan:hover,
  .page-contact .channel--magenta:hover,
  .page-contact .partner-card:hover { transform: none; }
}
<<<END>>>