.page-contact {
  --ct-cut: 56px;
  --ct-panel: linear-gradient(180deg, #0C1330 0%, #080E24 100%);
  padding-bottom: 80px;
}

/* ---------- 面包屑 ---------- */
.page-contact .crumbs {
  padding: 26px 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--c-grey);
  word-break: break-word;
}
.page-contact .crumbs a {
  color: var(--c-cyan);
  text-decoration: none;
}
.page-contact .crumbs a:hover {
  text-decoration: underline;
}
.page-contact .crumbs__sep {
  margin: 0 8px;
  color: var(--c-grid);
}
.page-contact .crumbs [aria-current="page"] {
  color: var(--c-star);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  padding-top: 34px;
}
.page-contact .eyebrow {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.26em;
  text-transform: uppercase;
  color: var(--c-cyan);
}
.page-contact .contact-hero h1 {
  margin: 0 0 20px;
  max-width: 24ch;
  font-size: clamp(28px, 6.4vw, 52px);
  line-height: 1.16;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--c-star);
}
.page-contact .contact-hero .lead {
  max-width: 64ch;
  margin: 0;
  font-size: 16.5px;
  line-height: 1.8;
  color: #C3CCEA;
}
.page-contact .hero-points {
  list-style: none;
  margin: 28px 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--c-grid);
  border: 1px solid var(--c-grid);
}
.page-contact .hero-points li {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 14px 16px;
  background: var(--c-deep);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--c-star);
  line-height: 1.5;
}
.page-contact .hero-points li::before {
  content: "";
  flex: 0 0 auto;
  width: 6px;
  height: 6px;
  background: var(--c-cyan);
  transform: translateY(-2px);
}
.page-contact .hero-points li:nth-child(2)::before {
  background: var(--c-orange);
}
.page-contact .hero-points li:nth-child(3)::before {
  background: var(--c-nebula);
}

.page-contact .contact-hero__banner {
  margin: 38px 0 0;
  border: 1px solid var(--c-grid);
  clip-path: polygon(0 0, 100% 0, 100% 100%, var(--ct-cut) 100%, 0 calc(100% - var(--ct-cut)));
  overflow: hidden;
}
.page-contact .contact-hero__banner img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(0.94) contrast(1.04);
}

/* ---------- 左右分屏 ---------- */
.page-contact .contact-split {
  margin-top: 52px;
  padding-top: 46px;
  border-top: 1px solid var(--c-grid);
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 44px;
}

/* ---------- 通用区块头 ---------- */
.page-contact .section-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 12px;
  margin: 0 0 8px;
  font-size: clamp(19px, 4.2vw, 24px);
  line-height: 1.32;
  letter-spacing: 0.02em;
  color: var(--c-star);
  font-weight: 700;
}
.page-contact .chapter-num {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.16em;
  color: var(--c-nebula);
}
.page-contact .block-note {
  margin: 0 0 20px;
  max-width: 56ch;
  font-size: 15px;
  line-height: 1.78;
  color: var(--c-grey);
}
.page-contact .contact-block + .contact-block {
  margin-top: 46px;
}

/* ---------- 左侧渠道 ---------- */
.page-contact .channel-list {
  list-style: none;
  margin: 0;
  padding: 0;
}
.page-contact .channel {
  position: relative;
  display: grid;
  gap: 6px;
  padding: 20px 0 20px 16px;
  border-top: 1px solid var(--c-grid);
}
.page-contact .channel:last-child {
  border-bottom: 1px solid var(--c-grid);
}
.page-contact .channel::before {
  content: "";
  position: absolute;
  left: 0;
  top: 22px;
  bottom: 22px;
  width: 1px;
  background: var(--c-cyan);
  opacity: 0.6;
}
.page-contact .channel__type {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--c-cyan);
}
.page-contact .channel__value {
  font-family: var(--font-mono);
  font-size: clamp(17px, 4vw, 24px);
  font-weight: 600;
  letter-spacing: 0.01em;
  color: var(--c-star);
  word-break: break-all;
  line-height: 1.35;
}
.page-contact .channel__use {
  margin: 2px 0 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--c-grey);
}

/* ---------- 在线时段 ---------- */
.page-contact .hours {
  margin-top: 18px;
  padding: 22px 20px;
  border: 1px solid var(--c-grid);
  background: #080E24;
}
.page-contact .hours__state {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0;
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: 0.06em;
  color: var(--c-star);
}
.page-contact .hours__dot {
  flex: 0 0 auto;
  width: 8px;
  height: 8px;
  background: var(--c-up);
  box-shadow: 0 0 0 4px rgba(43, 217, 138, 0.14);
}
.page-contact .hours__list {
  list-style: none;
  margin: 20px 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
}
.page-contact .hours__list li {
  display: grid;
  gap: 4px;
  padding-top: 14px;
  border-top: 1px solid rgba(27, 42, 94, 0.75);
  font-size: 15px;
  line-height: 1.72;
  color: var(--c-grey);
}
.page-contact .hours__list b {
  font-size: 15.5px;
  font-weight: 600;
  color: var(--c-star);
}
.page-contact .hours__off {
  margin: 20px 0 0;
  padding-top: 14px;
  border-top: 1px dashed var(--c-grid);
  font-size: 14px;
  line-height: 1.7;
  color: var(--c-grey);
}

/* ---------- 右侧操作区 ---------- */
.page-contact .contact-actions {
  display: grid;
  gap: 32px;
  align-content: start;
}
.page-contact .contact-card {
  position: relative;
  padding: 26px 22px;
  border: 1px solid var(--c-grid);
  background: var(--ct-panel);
}
.page-contact .contact-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: linear-gradient(180deg, var(--c-nebula), var(--c-cyan));
}
.page-contact .field-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px 16px;
  margin-top: 4px;
}
.page-contact .field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin: 0;
}
.page-contact .field__label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--c-grey);
}
.page-contact .field__input {
  width: 100%;
  box-sizing: border-box;
  padding: 11px 12px;
  border: 1px solid var(--c-grid);
  border-radius: 0;
  background: #070D22;
  color: var(--c-star);
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.6;
  transition: border-color var(--t-fast) var(--ease), box-shadow var(--t-fast) var(--ease);
}
.page-contact .field__input:focus {
  outline: none;
  border-color: var(--c-cyan);
  box-shadow: 0 0 0 1px var(--c-cyan), 0 0 16px rgba(0, 229, 255, 0.16);
}
.page-contact .card-foot {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
  margin: 22px 0 0;
}
.page-contact .card-foot__hint {
  flex: 1 1 210px;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--c-grey);
}
.page-contact .card-foot--note {
  display: block;
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px solid var(--c-grid);
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--c-grey);
}

/* ---------- 对接场景 ---------- */
.page-contact .scene-list {
  list-style: none;
  margin: 4px 0 0;
  padding: 0;
}
.page-contact .scene {
  padding: 16px 0;
  border-top: 1px solid rgba(27, 42, 94, 0.75);
}
.page-contact .scene:last-child {
  border-bottom: 1px solid rgba(27, 42, 94, 0.75);
}
.page-contact .scene__pick {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  cursor: pointer;
}
.page-contact .scene__pick input {
  flex: 0 0 auto;
  width: 15px;
  height: 15px;
  margin: 4px 0 0;
  accent-color: var(--c-cyan);
}
.page-contact .scene__name {
  font-size: 16px;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--c-star);
  line-height: 1.5;
}
.page-contact .scene__desc {
  margin: 8px 0 0 25px;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--c-grey);
}

/* ---------- 四步流程 ---------- */
.page-contact .contact-flow {
  margin-top: 72px;
  padding-top: 56px;
  border-top: 1px solid var(--c-grid);
  background: radial-gradient(120% 90% at 88% 0%, rgba(108, 75, 244, 0.16) 0%, rgba(5, 10, 31, 0) 62%);
}
.page-contact .flow__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 38px;
}
.page-contact .steps {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  border-top: 1px solid var(--c-grid);
}
.page-contact .step {
  border-bottom: 1px solid var(--c-grid);
}
.page-contact .step__sum {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 18px 4px;
  cursor: pointer;
  list-style: none;
  transition: background var(--t-fast) var(--ease);
}
.page-contact .step__sum::-webkit-details-marker {
  display: none;
}
.page-contact .step__sum:hover {
  background: rgba(0, 229, 255, 0.05);
}
.page-contact .step__no {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.16em;
  color: var(--c-orange);
}
.page-contact .step__name {
  flex: 1 1 auto;
  font-size: 16.5px;
  letter-spacing: 0.02em;
  color: var(--c-star);
}
.page-contact .step__cue {
  flex: 0 0 auto;
  width: 9px;
  height: 9px;
  border-right: 1px solid var(--c-cyan);
  border-bottom: 1px solid var(--c-cyan);
  transform: rotate(45deg) translate(-2px, -2px);
  transition: transform var(--t-base) var(--ease);
}
.page-contact .step__d[open] .step__cue {
  transform: rotate(-135deg) translate(-2px, -2px);
}
.page-contact .step__body {
  padding: 0 4px 20px 31px;
}
.page-contact .step__body p {
  margin: 0 0 12px;
  font-size: 15px;
  line-height: 1.78;
  color: var(--c-grey);
  max-width: 62ch;
}
.page-contact .step__body p:last-child {
  margin-bottom: 0;
}
.page-contact .step__prep {
  padding-left: 12px;
  border-left: 2px solid var(--c-nebula);
  font-size: 14px !important;
}
.page-contact .step__prep-label {
  display: inline-block;
  margin-right: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--c-cyan);
}
.page-contact .flow__media {
  margin: 0;
  border: 1px solid var(--c-grid);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--ct-cut)), calc(100% - var(--ct-cut)) 100%, 0 100%);
  overflow: hidden;
}
.page-contact .flow__media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(0.9) contrast(1.05);
}

/* ---------- 备案信息 ---------- */
.page-contact .contact-filing {
  margin-top: 72px;
}
.page-contact .filing {
  display: grid;
  gap: 18px;
  padding: 24px 20px;
  border: 1px solid var(--c-grid);
  background: linear-gradient(90deg, rgba(108, 75, 244, 0.16) 0%, rgba(5, 10, 31, 0) 66%);
}
.page-contact .filing__item {
  display: grid;
  gap: 6px;
}
.page-contact .filing__label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--c-grey);
}
.page-contact .filing__value {
  font-family: var(--font-mono);
  font-size: 16px;
  letter-spacing: 0.02em;
  color: var(--c-star);
  line-height: 1.5;
}
.page-contact .filing__links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 24px;
  margin-top: 20px;
}
.page-contact .filing__links a {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--c-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(0, 229, 255, 0.35);
  padding-bottom: 2px;
}
.page-contact .filing__links a:hover {
  border-bottom-color: var(--c-cyan);
}

/* ---------- 平板与桌面 ---------- */
@media (min-width: 700px) {
  .page-contact .hero-points {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-contact .field-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-contact .field--wide {
    grid-column: 1 / -1;
  }
  .page-contact .contact-card {
    padding: 30px 28px;
  }
  .page-contact .filing {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    padding: 28px 26px;
  }
}

@media (min-width: 960px) {
  .page-contact .contact-split {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: 56px;
    align-items: start;
  }
  .page-contact .flow__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 54px;
    align-items: start;
  }
  .page-contact .flow__media {
    margin-top: 34px;
  }
  .page-contact .contact-filing {
    margin-top: 88px;
  }
  .page-contact .contact-flow {
    margin-top: 88px;
  }
  .page-contact .contact-split {
    margin-top: 64px;
    padding-top: 54px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .step__cue,
  .page-contact .field__input,
  .page-contact .step__sum {
    transition: none;
  }
}