.page-contact {
  background: var(--c-midnight);
  color: var(--c-white);
  font-family: var(--font-body);
  overflow-x: hidden;
}

.page-contact .contact-hero {
  position: relative;
  padding-top: clamp(18px, 4vw, 32px);
  padding-bottom: clamp(36px, 6vw, 76px);
  background:
    radial-gradient(120% 90% at 88% -10%, rgba(139, 92, 246, 0.22), transparent 62%),
    radial-gradient(90% 80% at -10% 100%, rgba(46, 242, 208, 0.12), transparent 66%);
}

.page-contact .contact-hero::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 9px;
  background-image: repeating-linear-gradient(90deg, var(--c-border) 0 1px, transparent 1px 16px);
  opacity: 0.75;
  pointer-events: none;
}

.page-contact .contact-hero__grid {
  display: grid;
  gap: clamp(24px, 4vw, 46px);
  padding-top: clamp(18px, 4vw, 34px);
}

.page-contact .contact-kicker {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--c-cyan);
}

.page-contact .contact-hero__title {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(34px, 8vw, 66px);
  line-height: 1.04;
  letter-spacing: -0.01em;
  color: var(--c-white);
}

.page-contact .contact-hero__intro {
  margin: 18px 0 0;
  max-width: 46ch;
  font-size: clamp(15px, 2.6vw, 17px);
  line-height: 1.78;
  color: var(--c-grey);
}

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

.page-contact .contact-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 24px;
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
  font-size: 13px;
  color: var(--c-grey);
}

.page-contact .contact-hero__meta li {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.page-contact .dot {
  width: 8px;
  height: 8px;
  flex: none;
  border-radius: var(--radius-pill);
  background: var(--c-border);
}

.page-contact .dot--open {
  background: var(--c-green);
  box-shadow: 0 0 0 4px rgba(72, 224, 138, 0.16);
}

.page-contact .contact-hero__media {
  position: relative;
  margin: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: linear-gradient(155deg, var(--c-steel), var(--c-ink));
  box-shadow: 0 24px 60px rgba(5, 7, 15, 0.55);
}

.page-contact .contact-hero__media::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 3px;
  background: linear-gradient(90deg, var(--c-cyan), var(--c-violet) 60%, transparent);
}

.page-contact .contact-hero__media img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}

.page-contact .contact-hero__media figcaption {
  position: absolute;
  left: 16px;
  bottom: 16px;
  padding: 6px 12px;
  border-radius: var(--radius-pill);
  background: rgba(5, 7, 15, 0.72);
  border: 1px solid var(--c-border);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--c-grey);
}

.page-contact .contact-block {
  padding: clamp(42px, 7vw, 88px) 0;
}

.page-contact .contact-block--alt {
  position: relative;
  background: linear-gradient(180deg, rgba(27, 42, 74, 0.5), rgba(10, 16, 38, 0) 78%);
  border-top: 1px solid var(--c-border);
  border-bottom: 1px solid var(--c-border);
}

.page-contact .contact-head {
  max-width: 64ch;
  margin-bottom: clamp(24px, 4vw, 40px);
}

.page-contact .contact-head h2,
.page-contact .reach-main h2,
.page-contact .check-intro h2,
.page-contact .partner-card h2 {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(24px, 5vw, 38px);
  line-height: 1.16;
  color: var(--c-white);
}

.page-contact .contact-head__note,
.page-contact .reach-main__note,
.page-contact .check-intro p {
  margin: 14px 0 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--c-grey);
}

/* 反馈分类切换 */
.page-contact .channel-switch {
  position: relative;
}

.page-contact .channel-input {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: 0;
  opacity: 0;
  pointer-events: none;
}

.page-contact .channel-tabs {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
}

.page-contact .channel-tab {
  display: grid;
  grid-template-columns: auto 1fr;
  grid-template-areas:
    "num name"
    "num hint";
  gap: 2px 14px;
  padding: 16px 18px;
  border: 1px solid var(--c-border);
  border-radius: var(--radius-md);
  background: rgba(27, 42, 74, 0.42);
  color: var(--c-grey);
  cursor: pointer;
  transition: border-color 180ms var(--ease), background 180ms var(--ease), transform 180ms var(--ease);
}

.page-contact .channel-tab:hover {
  border-color: var(--c-cyan);
  transform: translateX(2px);
}

.page-contact .channel-tab__num {
  grid-area: num;
  align-self: center;
  font-size: 22px;
  color: var(--c-border);
  transition: color 180ms var(--ease);
}

.page-contact .channel-tab__name {
  grid-area: name;
  font-size: 16px;
  font-weight: 600;
  color: var(--c-white);
}

.page-contact .channel-tab__hint {
  grid-area: hint;
  font-size: 12px;
  line-height: 1.5;
  color: var(--c-grey);
}

.page-contact #ch-tech:checked ~ .channel-tabs .channel-tab[for="ch-tech"],
.page-contact #ch-record:checked ~ .channel-tabs .channel-tab[for="ch-record"],
.page-contact #ch-rule:checked ~ .channel-tabs .channel-tab[for="ch-rule"],
.page-contact #ch-partner:checked ~ .channel-tabs .channel-tab[for="ch-partner"] {
  background: linear-gradient(135deg, rgba(46, 242, 208, 0.16), rgba(139, 92, 246, 0.16));
  border-color: var(--c-cyan);
  color: var(--c-white);
}

.page-contact #ch-tech:checked ~ .channel-tabs .channel-tab[for="ch-tech"] .channel-tab__num,
.page-contact #ch-record:checked ~ .channel-tabs .channel-tab[for="ch-record"] .channel-tab__num,
.page-contact #ch-rule:checked ~ .channel-tabs .channel-tab[for="ch-rule"] .channel-tab__num,
.page-contact #ch-partner:checked ~ .channel-tabs .channel-tab[for="ch-partner"] .channel-tab__num {
  color: var(--c-cyan);
}

.page-contact #ch-tech:focus-visible ~ .channel-tabs .channel-tab[for="ch-tech"],
.page-contact #ch-record:focus-visible ~ .channel-tabs .channel-tab[for="ch-record"],
.page-contact #ch-rule:focus-visible ~ .channel-tabs .channel-tab[for="ch-rule"],
.page-contact #ch-partner:focus-visible ~ .channel-tabs .channel-tab[for="ch-partner"] {
  outline: 2px solid var(--c-cyan);
  outline-offset: 2px;
}

.page-contact .channel-panels {
  margin-top: 18px;
}

.page-contact .channel-panel {
  display: none;
  padding: clamp(20px, 3.4vw, 30px);
  border: 1px solid var(--c-border);
  border-left: 3px solid var(--c-cyan);
  border-radius: var(--radius-md);
  background: rgba(5, 7, 15, 0.55);
}

.page-contact #ch-tech:checked ~ .channel-panels #panel-tech,
.page-contact #ch-record:checked ~ .channel-panels #panel-record,
.page-contact #ch-rule:checked ~ .channel-panels #panel-rule,
.page-contact #ch-partner:checked ~ .channel-panels #panel-partner {
  display: block;
}

.page-contact .channel-panel__lead {
  margin: 0 0 20px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--c-white);
}

.page-contact .channel-facts {
  display: grid;
  gap: 16px;
  margin: 0;
}

.page-contact .channel-facts dt {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--c-cyan);
  text-transform: uppercase;
}

.page-contact .channel-facts dd {
  margin: 6px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--c-grey);
  overflow-wrap: anywhere;
}

.page-contact .channel-facts dd a {
  color: var(--c-white);
  font-family: var(--font-mono);
  text-decoration: none;
  border-bottom: 1px solid var(--c-cyan);
  padding-bottom: 1px;
}

.page-contact .channel-facts dd a:hover {
  color: var(--c-cyan);
}

.page-contact .channel-panel__link {
  display: inline-block;
  margin-top: 22px;
  font-size: 14px;
  color: var(--c-cyan);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 180ms var(--ease), transform 180ms var(--ease);
}

.page-contact .channel-panel__link:hover {
  border-bottom-color: var(--c-cyan);
  transform: translateX(3px);
}

/* 直连通道 */
.page-contact .reach-grid {
  display: grid;
  gap: clamp(24px, 4vw, 42px);
}

.page-contact .reach-list {
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
}

.page-contact .reach-line {
  display: grid;
  gap: 6px;
  padding: 18px 20px;
  border: 1px solid var(--c-border);
  border-radius: var(--radius-md);
  background: rgba(10, 16, 38, 0.6);
  text-decoration: none;
  transition: border-color 180ms var(--ease), transform 180ms var(--ease), background 180ms var(--ease);
}

.page-contact a.reach-line:hover {
  border-color: var(--c-cyan);
  background: rgba(46, 242, 208, 0.06);
  transform: translateX(3px);
}

.page-contact .reach-line__key {
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--c-violet);
}

.page-contact .reach-line__value {
  font-family: var(--font-mono);
  font-size: clamp(18px, 4.6vw, 28px);
  line-height: 1.24;
  color: var(--c-white);
  overflow-wrap: anywhere;
}

.page-contact .reach-line__value--text {
  font-family: var(--font-body);
  font-size: clamp(16px, 3.6vw, 20px);
  font-weight: 600;
}

.page-contact .reach-line__note {
  font-size: 13px;
  line-height: 1.6;
  color: var(--c-grey);
}

.page-contact .console {
  padding: clamp(22px, 3.6vw, 30px);
  border-radius: var(--radius-lg);
  background: linear-gradient(160deg, var(--c-steel), rgba(5, 7, 15, 0.92));
  border: 1px solid var(--c-border);
}

.page-contact .console__title {
  margin: 0 0 18px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--c-border);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--c-cyan);
}

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

.page-contact .console__row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 14px;
  font-size: 14px;
}

.page-contact .console__key {
  color: var(--c-grey);
}

.page-contact .console__val {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: var(--c-white);
  font-family: var(--font-mono);
  font-size: 13px;
  text-align: right;
}

.page-contact .console__foot {
  margin: 20px 0 0;
  padding-top: 16px;
  border-top: 1px dashed var(--c-border);
  font-size: 13px;
  line-height: 1.72;
  color: var(--c-grey);
}

/* 响应流程 */
.page-contact .flow-wrap {
  display: grid;
  gap: clamp(26px, 4vw, 44px);
}

.page-contact .flow {
  position: relative;
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 26px;
}

.page-contact .flow::before {
  content: "";
  position: absolute;
  left: 21px;
  top: 12px;
  bottom: 12px;
  width: 2px;
  background: linear-gradient(180deg, var(--c-cyan), var(--c-violet), transparent);
  opacity: 0.6;
}

.page-contact .flow-step {
  position: relative;
  padding-left: 58px;
}

.page-contact .flow-step__num {
  position: absolute;
  left: 0;
  top: 0;
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--c-cyan);
  background: var(--c-midnight);
  font-size: 14px;
  color: var(--c-cyan);
}

.page-contact .flow-step h3 {
  margin: 8px 0 0;
  font-size: 18px;
  font-weight: 600;
  color: var(--c-white);
}

.page-contact .flow-step p {
  margin: 8px 0 0;
  font-size: 14px;
  line-height: 1.78;
  color: var(--c-grey);
}

.page-contact .flow-media {
  margin: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--c-border);
  background: var(--c-ink);
}

.page-contact .flow-media img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}

.page-contact .flow-media figcaption {
  padding: 12px 18px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--c-grey);
  border-top: 1px solid var(--c-border);
}

/* 自查清单 */
.page-contact .check-grid {
  display: grid;
  gap: clamp(24px, 4vw, 40px);
}

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

.page-contact .checklist__item label {
  display: flex;
  gap: 14px;
  padding: 16px 18px;
  border: 1px solid var(--c-border);
  border-radius: var(--radius-md);
  background: rgba(10, 16, 38, 0.55);
  cursor: pointer;
  transition: border-color 180ms var(--ease), background 180ms var(--ease);
}

.page-contact .checklist__item label:hover {
  border-color: var(--c-violet);
}

.page-contact .checklist__box {
  flex: none;
  width: 20px;
  height: 20px;
  margin: 2px 0 0;
  accent-color: var(--c-cyan);
  cursor: pointer;
}

.page-contact .checklist__box:focus-visible {
  outline: 2px solid var(--c-cyan);
  outline-offset: 2px;
}

.page-contact .checklist__body {
  display: grid;
  gap: 5px;
}

.page-contact .checklist__label {
  font-size: 15px;
  font-weight: 600;
  color: var(--c-white);
}

.page-contact .checklist__desc {
  font-size: 13px;
  line-height: 1.68;
  color: var(--c-grey);
}

.page-contact .checklist__box:checked ~ .checklist__body .checklist__label {
  color: var(--c-cyan);
}

.page-contact .check-links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 18px;
  margin: clamp(24px, 4vw, 36px) 0 0;
  font-size: 13px;
  color: var(--c-grey);
}

.page-contact .check-links a {
  color: var(--c-white);
  text-decoration: none;
  border-bottom: 1px solid var(--c-border);
  padding-bottom: 2px;
  transition: border-color 180ms var(--ease), color 180ms var(--ease);
}

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

/* 合作咨询 */
.page-contact .partner-card {
  display: grid;
  gap: clamp(24px, 4vw, 40px);
  padding: clamp(24px, 4.6vw, 44px);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(135deg, rgba(139, 92, 246, 0.18), transparent 55%),
    linear-gradient(200deg, var(--c-steel), var(--c-ink));
}

.page-contact .partner-card__main p {
  margin: 14px 0 0;
  max-width: 52ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--c-grey);
}

.page-contact .partner-card__main .btn {
  margin-top: 24px;
}

.page-contact .partner-card__title {
  margin: 0 0 16px;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--c-orange);
}

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

.page-contact .partner-list li {
  display: flex;
  gap: 12px;
  align-items: baseline;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--c-border);
  font-size: 14px;
  line-height: 1.65;
  color: var(--c-white);
}

.page-contact .partner-list li:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-contact .partner-list .mono {
  flex: none;
  font-size: 12px;
  color: var(--c-cyan);
}

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

  .page-contact .flow {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
  }

  .page-contact .flow::before {
    left: 8%;
    right: 8%;
    top: 22px;
    bottom: auto;
    width: auto;
    height: 2px;
    background: linear-gradient(90deg, var(--c-cyan), var(--c-violet), transparent);
  }

  .page-contact .flow-step {
    padding-left: 0;
    padding-top: 66px;
  }

  .page-contact .flow-step p {
    margin-top: 6px;
  }
}

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

  .page-contact .channel-tabs {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-contact .channel-tab {
    grid-template-columns: 1fr;
    grid-template-areas:
      "num"
      "name"
      "hint";
    gap: 6px;
    padding: 20px 18px 22px;
  }

  .page-contact .channel-tab__num {
    font-size: 30px;
  }

  .page-contact .reach-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    align-items: start;
  }

  .page-contact .flow-wrap {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    align-items: start;
  }

  .page-contact .check-grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    align-items: start;
  }

  .page-contact .partner-card {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    align-items: start;
  }
}
<<<PAGE_CSS_END>>>