.page-contact {
  background: var(--db-space);
  color: var(--db-mist);
  font-family: var(--db-f-display);
  line-height: 1.7;
  overflow-x: hidden;
}

/* ---------- 首屏 ---------- */
.page-contact .pc-hero {
  position: relative;
  border-bottom: 1px solid var(--db-line);
  background:
    radial-gradient(120% 90% at 88% 8%, rgba(56, 242, 210, 0.12), transparent 62%),
    linear-gradient(180deg, var(--db-space) 0%, var(--db-space-deep) 100%);
  padding: 26px 0 44px;
}
.page-contact .pc-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, var(--db-line-2) 1px, transparent 1px),
    linear-gradient(to bottom, var(--db-line-2) 1px, transparent 1px);
  background-size: 92px 92px;
  opacity: 0.3;
  pointer-events: none;
}
.page-contact .pc-hero__inner {
  position: relative;
  display: grid;
  gap: 30px;
}
.page-contact .pc-hero__panel {
  display: flex;
}

.page-contact .pc-crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0 0 22px;
  font-family: var(--db-f-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--db-slate);
}
.page-contact .pc-crumbs a {
  color: var(--db-cyan);
  text-decoration: none;
}
.page-contact .pc-crumbs a:hover {
  text-decoration: underline;
}
.page-contact .pc-crumbs [aria-current] {
  color: var(--db-mist);
}

.page-contact .pc-eyebrow {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 12px;
  font-family: var(--db-f-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--db-cyan);
}
.page-contact .pc-eyebrow::before {
  content: "";
  width: 26px;
  height: 1px;
  flex: 0 0 auto;
  background: var(--db-cyan);
}

.page-contact .pc-h1 {
  margin: 0 0 18px;
  font-size: clamp(30px, 8.4vw, 54px);
  line-height: 1.1;
  font-weight: 900;
  letter-spacing: -0.02em;
  color: var(--db-mist);
}
.page-contact .pc-h1 em {
  display: block;
  margin-top: 10px;
  font-style: normal;
  font-size: 0.6em;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--db-cyan);
}
.page-contact .pc-lead {
  max-width: 48ch;
  margin: 0 0 26px;
  font-size: 16px;
  color: var(--db-slate);
}
.page-contact .pc-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* 控制台面板视觉 */
.page-contact .pc-panel {
  position: relative;
  flex: 1 1 auto;
  min-height: 250px;
  padding: 18px 16px;
  overflow: hidden;
  border: 1px solid var(--db-line);
  border-radius: var(--db-radius);
  background:
    linear-gradient(var(--db-cyan-soft) 1px, transparent 1px) 0 0 / 100% 32px,
    linear-gradient(90deg, var(--db-cyan-soft) 1px, transparent 1px) 0 0 / 32px 100%,
    linear-gradient(160deg, var(--db-teal), var(--db-space-deep));
  box-shadow: inset 0 0 0 1px rgba(56, 242, 210, 0.08);
}
.page-contact .pc-panel::before,
.page-contact .pc-panel::after {
  content: "";
  position: absolute;
  width: 18px;
  height: 18px;
  border: 1px solid var(--db-cyan);
  opacity: 0.7;
}
.page-contact .pc-panel::before {
  top: 8px;
  left: 8px;
  border-right: 0;
  border-bottom: 0;
}
.page-contact .pc-panel::after {
  right: 8px;
  bottom: 8px;
  border-top: 0;
  border-left: 0;
}
.page-contact .pc-panel__tag {
  position: relative;
  z-index: 2;
  display: inline-block;
  padding: 4px 8px;
  border: 1px solid var(--db-line);
  background: rgba(7, 26, 47, 0.72);
  font-family: var(--db-f-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--db-cyan);
}
.page-contact .pc-panel__cross {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 96px;
  height: 96px;
  transform: translate(-50%, -50%) rotate(45deg);
  border: 1px solid var(--db-line);
}
.page-contact .pc-panel__cross::before {
  content: "";
  position: absolute;
  inset: 22px;
  border: 1px solid var(--db-line);
}
.page-contact .pc-panel__rows {
  position: relative;
  z-index: 2;
  display: grid;
  gap: 10px;
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
  font-family: var(--db-f-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--db-slate);
}
.page-contact .pc-panel__rows li {
  display: flex;
  align-items: center;
  gap: 10px;
}
.page-contact .pc-dot {
  display: inline-block;
  width: 7px;
  height: 7px;
  flex: 0 0 auto;
  border-radius: 50%;
}
.page-contact .pc-dot--cyan {
  background: var(--db-cyan);
  box-shadow: 0 0 0 3px rgba(56, 242, 210, 0.16);
}
.page-contact .pc-dot--amber {
  background: var(--db-amber);
  box-shadow: 0 0 0 3px rgba(255, 181, 71, 0.14);
}
.page-contact .pc-dot--magenta {
  background: var(--db-magenta);
  box-shadow: 0 0 0 3px rgba(255, 77, 141, 0.14);
}
.page-contact .pc-panel__axis {
  position: absolute;
  right: 14px;
  bottom: 14px;
  z-index: 2;
  font-family: var(--db-f-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--db-slate);
}

/* ---------- 通用章节 ---------- */
.page-contact .pc-section {
  position: relative;
  padding: 54px 0;
  border-bottom: 1px solid var(--db-line-2);
}
.page-contact .pc-sechead {
  max-width: 720px;
  margin: 0 0 30px;
}
.page-contact .pc-h2 {
  margin: 0 0 14px;
  font-size: clamp(23px, 5.2vw, 34px);
  line-height: 1.24;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--db-mist);
}
.page-contact .pc-sechead__text {
  margin: 0;
  max-width: 64ch;
  font-size: 15px;
  color: var(--db-slate);
}

/* ---------- 联系渠道 ---------- */
.page-contact .pc-channels-layout {
  display: grid;
  gap: 24px;
}
.page-contact .pc-channels {
  display: grid;
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.page-contact .pc-channel {
  position: relative;
  padding: 18px 18px 20px;
  border: 1px solid var(--db-line-2);
  border-left: 3px solid var(--db-cyan);
  border-radius: var(--db-radius);
  background: linear-gradient(135deg, rgba(11, 43, 51, 0.92), rgba(7, 26, 47, 0.92));
  transition: border-color 0.22s var(--db-ease), transform 0.22s var(--db-ease);
}
.page-contact .pc-channel:hover {
  border-left-color: var(--db-amber);
  transform: translateY(-2px);
}
.page-contact .pc-channel__idx {
  display: block;
  margin-bottom: 8px;
  font-family: var(--db-f-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--db-slate);
}
.page-contact .pc-channel__title {
  margin: 0 0 6px;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--db-mist);
}
.page-contact .pc-channel__value {
  margin: 0 0 10px;
  font-family: var(--db-f-mono);
  font-size: clamp(16px, 4.2vw, 20px);
  font-weight: 600;
  line-height: 1.5;
  color: var(--db-cyan);
  overflow-wrap: anywhere;
}
.page-contact .pc-channel__value a {
  color: inherit;
  text-decoration: none;
  border-bottom: 1px dashed rgba(56, 242, 210, 0.5);
}
.page-contact .pc-channel__value a:hover {
  color: var(--db-amber);
  border-bottom-color: var(--db-amber);
}
.page-contact .pc-channel__desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--db-slate);
}

.page-contact .pc-figure {
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--db-line);
  border-radius: var(--db-radius);
  background: var(--db-space-deep);
  box-shadow: 8px 8px 0 rgba(3, 11, 20, 0.6);
}
.page-contact .pc-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- 反馈路径 ---------- */
.page-contact .pc-feedback {
  background: linear-gradient(180deg, rgba(11, 43, 51, 0.5), transparent 68%);
}
.page-contact .pc-flow {
  display: grid;
  gap: 14px;
  margin: 0 0 30px;
  padding: 0;
  list-style: none;
}
.page-contact .pc-flow__step {
  position: relative;
  padding: 16px 16px 16px 16px;
  border: 1px dashed var(--db-line);
  border-radius: var(--db-radius);
  background: rgba(7, 26, 47, 0.62);
  font-size: 14px;
  color: var(--db-mist);
}
.page-contact .pc-flow__idx {
  display: block;
  margin-bottom: 6px;
  font-family: var(--db-f-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--db-amber);
}

.page-contact .pc-tabs {
  padding: 16px;
  border: 1px solid var(--db-line-2);
  border-radius: var(--db-radius);
  background: rgba(11, 43, 51, 0.55);
}
.page-contact .pc-tabs .db-tabs__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 18px;
}
.page-contact .pc-tabs .db-tab {
  appearance: none;
  min-height: 44px;
  padding: 10px 16px;
  border: 1px solid var(--db-line-2);
  border-radius: 999px;
  background: transparent;
  color: var(--db-slate);
  font-family: var(--db-f-display);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: color 0.2s var(--db-ease), background 0.2s var(--db-ease), border-color 0.2s var(--db-ease);
}
.page-contact .pc-tabs .db-tab:hover {
  color: var(--db-cyan);
  border-color: var(--db-cyan);
}
.page-contact .pc-tabs .db-tab[aria-selected="true"] {
  color: var(--db-space);
  background: var(--db-cyan);
  border-color: var(--db-cyan);
}
.page-contact .pc-tabs .db-tab:focus-visible {
  outline: 2px solid var(--db-amber);
  outline-offset: 2px;
}
.page-contact .pc-tabs .db-tabpanel {
  padding: 2px 2px 4px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--db-mist);
}
.page-contact .pc-tabs .db-tabpanel h3 {
  margin: 0 0 8px;
  font-size: 16px;
  font-weight: 700;
  color: var(--db-cyan);
}
.page-contact .pc-tabs .db-tabpanel p {
  margin: 0;
  color: var(--db-slate);
}
.page-contact .pc-tabs .db-tabpanel ul {
  margin: 12px 0 0;
  padding-left: 18px;
  color: var(--db-slate);
  font-size: 14px;
}
.page-contact .pc-tabs .db-tabpanel li {
  margin-bottom: 4px;
}

/* ---------- 反馈状态 ---------- */
.page-contact .pc-status {
  background: linear-gradient(180deg, rgba(27, 20, 64, 0.4), transparent 70%);
}
.page-contact .pc-status__layout {
  display: grid;
  gap: 28px;
}
.page-contact .pc-acc {
  border-top: 1px solid var(--db-line-2);
}
.page-contact .pc-acc__item {
  border-bottom: 1px solid var(--db-line-2);
}
.page-contact .pc-acc__btn {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
  min-height: 44px;
  padding: 16px 0;
  border: 0;
  background: transparent;
  color: var(--db-mist);
  font-family: var(--db-f-display);
  font-size: 15px;
  font-weight: 600;
  text-align: left;
  cursor: pointer;
  transition: color 0.2s var(--db-ease);
}
.page-contact .pc-acc__btn:hover {
  color: var(--db-cyan);
}
.page-contact .pc-acc__btn:focus-visible {
  outline: 2px solid var(--db-amber);
  outline-offset: 2px;
}
.page-contact .pc-acc__name {
  flex: 1 1 auto;
  color: inherit;
}
.page-contact .pc-acc__sign {
  flex: 0 0 auto;
  font-family: var(--db-f-mono);
  font-size: 16px;
  color: var(--db-cyan);
}
.page-contact .pc-badge {
  display: inline-flex;
  align-items: center;
  flex: 0 0 auto;
  padding: 3px 8px;
  border: 1px solid var(--db-magenta);
  border-radius: 2px;
  background: rgba(255, 77, 141, 0.12);
  font-family: var(--db-f-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--db-mist);
  white-space: nowrap;
}
.page-contact .pc-acc__panel {
  padding: 0 0 18px;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--db-slate);
}
.page-contact .pc-acc__panel p {
  margin: 0;
}

/* ---------- 服务时段带 ---------- */
.page-contact .pc-band {
  padding: 40px 0;
  border-top: 1px solid var(--db-line);
  border-bottom: 1px solid var(--db-line);
  background: linear-gradient(100deg, var(--db-indigo), var(--db-teal) 58%, var(--db-space));
}
.page-contact .pc-band__inner {
  display: grid;
  gap: 24px;
}
.page-contact .pc-band__num {
  display: block;
  font-family: var(--db-f-mono);
  font-size: clamp(26px, 6.6vw, 38px);
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: -0.01em;
  color: var(--db-amber);
}
.page-contact .pc-band__label {
  margin: 6px 0 0;
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--db-slate);
}
.page-contact .pc-band__note {
  margin: 0;
  padding-left: 14px;
  border-left: 2px solid var(--db-magenta);
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--db-mist);
  overflow-wrap: anywhere;
}

/* ---------- 合作象限 ---------- */
.page-contact .pc-quad {
  display: grid;
  gap: 2px;
  margin: 0;
  padding: 0;
  list-style: none;
  border: 1px solid var(--db-line-2);
  border-radius: var(--db-radius);
  background: var(--db-line-2);
  overflow: hidden;
}
.page-contact .pc-quad__cell {
  padding: 22px 20px 24px;
  background: var(--db-space-deep);
}
.page-contact .pc-quad__cell:nth-child(1) {
  background: linear-gradient(160deg, rgba(27, 20, 64, 0.95), rgba(7, 26, 47, 0.98));
}
.page-contact .pc-quad__cell:nth-child(2) {
  background: linear-gradient(160deg, rgba(11, 43, 51, 0.95), rgba(7, 26, 47, 0.98));
}
.page-contact .pc-quad__cell:nth-child(3) {
  background: linear-gradient(160deg, rgba(90, 31, 51, 0.8), rgba(7, 26, 47, 0.98));
}
.page-contact .pc-quad__cell:nth-child(4) {
  background: linear-gradient(160deg, rgba(3, 11, 20, 0.95), rgba(7, 26, 47, 0.98));
}
.page-contact .pc-quad__idx {
  display: block;
  margin-bottom: 10px;
  font-family: var(--db-f-mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--db-amber);
}
.page-contact .pc-quad__cell h3 {
  margin: 0 0 8px;
  font-size: 17px;
  font-weight: 700;
  color: var(--db-mist);
}
.page-contact .pc-quad__cell p {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--db-slate);
}

/* ---------- 地址 ---------- */
.page-contact .pc-addr__grid {
  display: grid;
  gap: 20px;
}
.page-contact .pc-addr__card {
  padding: 24px 20px;
  border: 1px solid var(--db-line);
  border-radius: var(--db-radius);
  background: linear-gradient(150deg, rgba(11, 43, 51, 0.9), rgba(7, 26, 47, 0.95));
  box-shadow: 6px 6px 0 rgba(3, 11, 20, 0.55);
}
.page-contact .pc-addr__label {
  margin: 0 0 10px;
  font-family: var(--db-f-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--db-cyan);
}
.page-contact .pc-addr__value {
  margin: 0 0 12px;
  font-size: clamp(16px, 3.8vw, 20px);
  font-weight: 700;
  line-height: 1.5;
  color: var(--db-mist);
}
.page-contact .pc-addr__desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--db-slate);
}
.page-contact .pc-addr__coords {
  position: relative;
  min-height: 210px;
  overflow: hidden;
  border: 1px solid var(--db-line-2);
  border-radius: var(--db-radius);
  background:
    linear-gradient(var(--db-cyan-soft) 1px, transparent 1px) 0 0 / 100% 26px,
    linear-gradient(90deg, var(--db-cyan-soft) 1px, transparent 1px) 0 0 / 26px 100%,
    var(--db-space-deep);
}
.page-contact .pc-addr__coords::after {
  content: "";
  position: absolute;
  inset: 24%;
  border: 1px solid var(--db-line);
  transform: rotate(45deg);
}
.page-contact .pc-addr__coords::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  z-index: 1;
  width: 10px;
  height: 10px;
  margin: -5px 0 0 -5px;
  border-radius: 50%;
  background: var(--db-amber);
  box-shadow: 0 0 0 6px rgba(255, 181, 71, 0.15);
}
.page-contact .pc-addr__tip {
  margin: 22px 0 0;
  max-width: 66ch;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--db-slate);
}

/* ---------- 收尾 ---------- */
.page-contact .pc-tail {
  padding: 44px 0 52px;
  background: var(--db-indigo);
}
.page-contact .pc-tail__inner {
  display: grid;
  gap: 22px;
}
.page-contact .pc-tail__text {
  margin: 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.75;
  color: var(--db-slate);
  overflow-wrap: anywhere;
}
.page-contact .pc-tail__links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.page-contact .pc-tail__links a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 16px;
  border: 1px solid var(--db-line);
  border-radius: 999px;
  color: var(--db-mist);
  font-size: 14px;
  text-decoration: none;
  transition: color 0.2s var(--db-ease), background 0.2s var(--db-ease), border-color 0.2s var(--db-ease);
}
.page-contact .pc-tail__links a:hover {
  color: var(--db-space);
  background: var(--db-cyan);
  border-color: var(--db-cyan);
}
.page-contact .pc-totop {
  justify-self: start;
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 16px;
  border: 1px solid var(--db-line-2);
  border-radius: 999px;
  font-family: var(--db-f-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--db-slate);
  text-decoration: none;
  transition: color 0.2s var(--db-ease), border-color 0.2s var(--db-ease);
}
.page-contact .pc-totop:hover {
  color: var(--db-cyan);
  border-color: var(--db-cyan);
}

/* ---------- 响应式 ---------- */
@media (min-width: 700px) {
  .page-contact .pc-channels {
    gap: 16px;
  }
  .page-contact .pc-flow {
    grid-template-columns: 1fr 1fr;
    gap: 16px;
  }
  .page-contact .pc-quad {
    grid-template-columns: 1fr 1fr;
  }
}

@media (min-width: 860px) {
  .page-contact .pc-hero {
    padding: 34px 0 56px;
  }
  .page-contact .pc-hero__inner {
    grid-template-columns: 5fr 7fr;
    align-items: stretch;
    gap: 40px;
  }
  .page-contact .pc-hero__copy {
    display: flex;
    flex-direction: column;
    justify-content: center;
  }
  .page-contact .pc-section {
    padding: 68px 0;
  }
  .page-contact .pc-channels-layout {
    grid-template-columns: 7fr 5fr;
    align-items: start;
    gap: 28px;
  }
  .page-contact .pc-flow {
    grid-template-columns: repeat(4, 1fr);
    gap: 26px;
  }
  .page-contact .pc-flow__step::after {
    content: "";
    position: absolute;
    top: 50%;
    right: -18px;
    width: 9px;
    height: 9px;
    border-top: 1px solid var(--db-cyan);
    border-right: 1px solid var(--db-cyan);
    transform: translateY(-50%) rotate(45deg);
  }
  .page-contact .pc-flow__step:last-child::after {
    content: none;
  }
  .page-contact .pc-status__layout {
    grid-template-columns: 7fr 5fr;
    align-items: start;
    gap: 36px;
  }
  .page-contact .pc-band {
    padding: 46px 0;
  }
  .page-contact .pc-band__inner {
    grid-template-columns: 1fr 1fr 1.3fr;
    align-items: center;
    gap: 32px;
  }
  .page-contact .pc-addr__grid {
    grid-template-columns: 5fr 7fr;
    align-items: stretch;
    gap: 24px;
  }
  .page-contact .pc-tail__inner {
    grid-template-columns: 1fr auto;
    align-items: center;
    gap: 32px;
  }
  .page-contact .pc-totop {
    grid-column: 2;
    justify-self: end;
  }
}

@media (min-width: 1180px) {
  .page-contact .pc-hero__inner {
    gap: 56px;
  }
  .page-contact .pc-panel {
    min-height: 320px;
    padding: 22px 20px;
  }
  .page-contact .pc-tabs {
    padding: 22px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .pc-channel,
  .page-contact .pc-tabs .db-tab,
  .page-contact .pc-tail__links a,
  .page-contact .pc-totop,
  .page-contact .pc-acc__btn {
    transition: none;
  }
  .page-contact .pc-channel:hover {
    transform: none;
  }
}