.page-contact {
  --contact-panel: #0A1E32;
  --contact-line: rgba(143, 169, 192, 0.2);
  background-color: var(--deep);
  color: var(--text);
  font-family: var(--font-body);
}

.page-contact .section {
  padding-block: clamp(34px, 6vw, 78px);
}

.page-contact .section--tight {
  padding-block: clamp(24px, 4vw, 52px);
}

.page-contact .eyebrow {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-contact .breadcrumb {
  margin-bottom: clamp(20px, 3vw, 34px);
}

/* 首屏 */
.page-contact .contact-top {
  padding-top: clamp(20px, 3vw, 32px);
  background:
    radial-gradient(120% 90% at 88% 0%, rgba(47, 227, 208, 0.12), transparent 62%),
    var(--deep);
}

.page-contact .contact-top__grid {
  display: grid;
  gap: 22px;
}

.page-contact .contact-top__head h1 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(32px, 7.2vw, 68px);
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--paper);
  max-width: 15ch;
}

.page-contact .contact-top__lead {
  margin: 20px 0 0;
  max-width: 46ch;
  font-size: clamp(15px, 1.8vw, 18px);
  line-height: 1.78;
  color: var(--text);
}

.page-contact .contact-top__note {
  margin: 0;
  padding-left: 16px;
  border-left: 2px solid var(--line-strong);
  font-size: 13px;
  line-height: 1.9;
  color: var(--text-dim);
}

/* 错位双栏 */
.page-contact .contact-duo__grid {
  display: grid;
  gap: 20px;
  align-items: start;
}

.page-contact .contact-card {
  position: relative;
  overflow: hidden;
  isolation: isolate;
  border: 1px solid var(--line-strong);
  border-radius: 6px;
  background:
    linear-gradient(165deg, rgba(12, 37, 64, 0.94), rgba(4, 18, 30, 0.98));
  box-shadow: 0 26px 60px -34px rgba(0, 0, 0, 0.9);
}

.page-contact .contact-card__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  max-width: none;
  object-fit: cover;
  opacity: 0.2;
  z-index: -1;
}

.page-contact .contact-card__body {
  padding: clamp(22px, 4vw, 38px);
}

.page-contact .contact-card__label {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--cyan);
}

.page-contact .contact-card__title {
  margin: 0 0 22px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(21px, 3.4vw, 27px);
  line-height: 1.34;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-contact .contact-rows {
  margin: 0;
  border-top: 1px solid var(--line-strong);
}

.page-contact .contact-rows__item {
  display: grid;
  gap: 4px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
}

.page-contact .contact-rows__item dt {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--mist);
}

.page-contact .contact-rows__item dd {
  margin: 0;
  font-size: 16px;
  line-height: 1.5;
  color: var(--paper);
  word-break: break-word;
}

.page-contact .contact-rows__mono {
  font-family: var(--font-mono);
  font-size: 17px;
  letter-spacing: 0.01em;
  color: var(--cyan-soft);
}

.page-contact .contact-card__note {
  margin: 18px 0 0;
  font-size: 13px;
  line-height: 1.85;
  color: var(--text-dim);
}

.page-contact .contact-prep {
  background: var(--paper);
  color: var(--ink);
  border-radius: 6px;
  padding: clamp(22px, 4vw, 40px);
}

.page-contact .contact-prep__title {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(22px, 3.6vw, 32px);
  line-height: 1.26;
  letter-spacing: -0.015em;
  color: var(--ink);
}

.page-contact .contact-prep__intro {
  margin: 0 0 24px;
  font-size: 15px;
  line-height: 1.8;
  color: #3A4A55;
}

.page-contact .prep-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 2px;
}

.page-contact .prep-list__item {
  display: grid;
  grid-template-columns: 42px 1fr;
  gap: 12px;
  padding: 16px 0;
  border-top: 1px solid rgba(11, 17, 24, 0.12);
  transition: background-color 0.2s var(--ease);
}

.page-contact .prep-list__item:hover {
  background: rgba(47, 227, 208, 0.1);
}

.page-contact .prep-list__num {
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: 0.06em;
  color: var(--cyan-deep);
  padding-top: 2px;
}

.page-contact .prep-list__body h3 {
  margin: 0 0 5px;
  font-size: 16px;
  font-weight: 700;
  color: var(--ink);
}

.page-contact .prep-list__body p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: #40505B;
}

.page-contact .contact-prep__tip {
  margin: 22px 0 0;
  padding: 12px 14px;
  border-left: 3px solid var(--coral);
  background: rgba(255, 106, 77, 0.1);
  font-size: 13px;
  line-height: 1.8;
  color: #2F3E48;
}

/* 流程 */
.page-contact .contact-flow {
  background: var(--night);
  border-block: 1px solid var(--line);
}

.page-contact .contact-flow__head h2 {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(24px, 4.4vw, 40px);
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--paper);
  max-width: 18ch;
}

.page-contact .contact-flow__lead {
  margin: 0 0 28px;
  max-width: 54ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--text);
}

.page-contact .contact-flow__body {
  position: relative;
  overflow: hidden;
}

.page-contact .contact-flow__art {
  position: absolute;
  right: -8%;
  top: -20%;
  width: 58%;
  max-width: 300px;
  height: auto;
  opacity: 0.14;
  pointer-events: none;
}

.page-contact .flow-steps {
  position: relative;
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 16px;
}

.page-contact .flow-steps__item {
  padding: 18px 18px 18px 20px;
  border-left: 2px solid var(--line-strong);
  background: rgba(6, 24, 38, 0.55);
  border-radius: 0 4px 4px 0;
  transition: border-color 0.2s var(--ease), background-color 0.2s var(--ease);
}

.page-contact .flow-steps__item:hover {
  border-left-color: var(--coral);
  background: rgba(6, 24, 38, 0.9);
}

.page-contact .flow-steps__num {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--cyan);
}

.page-contact .flow-steps__item h3 {
  margin: 0 0 8px;
  font-size: 18px;
  font-weight: 700;
  color: var(--paper);
}

.page-contact .flow-steps__item p {
  margin: 0;
  font-size: 14px;
  line-height: 1.82;
  color: var(--text-dim);
}

/* 纠错与合作 */
.page-contact .contact-fix__head {
  max-width: 62ch;
  margin-bottom: clamp(22px, 3vw, 34px);
}

.page-contact .contact-fix__head h2 {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(24px, 4.4vw, 38px);
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--paper);
}

.page-contact .contact-fix__head p {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--text-dim);
}

.page-contact .contact-fix__grid {
  display: grid;
  gap: 14px;
}

.page-contact .fix-item {
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: rgba(12, 37, 64, 0.46);
  transition: border-color 0.2s var(--ease), transform 0.2s var(--ease);
}

.page-contact .fix-item:hover {
  border-color: var(--line-strong);
  transform: translateY(-2px);
}

.page-contact .fix-item__tag {
  display: inline-block;
  margin: 0 0 12px;
}

.page-contact .fix-item h3 {
  margin: 0 0 8px;
  font-size: 17px;
  font-weight: 700;
  color: var(--paper);
}

.page-contact .fix-item p {
  margin: 0;
  font-size: 14px;
  line-height: 1.82;
  color: var(--text-dim);
}

.page-contact .fix-coop {
  padding: 22px;
  border: 1px solid var(--line-strong);
  border-radius: 4px;
  background: linear-gradient(150deg, rgba(47, 227, 208, 0.12), rgba(6, 24, 38, 0.4));
}

.page-contact .fix-coop h3 {
  margin: 0 0 10px;
  font-size: 18px;
  font-weight: 700;
  color: var(--cyan-soft);
}

.page-contact .fix-coop p {
  margin: 0 0 16px;
  font-size: 14px;
  line-height: 1.82;
  color: var(--text);
}

.page-contact .fix-coop .btn {
  font-size: 14px;
}

/* 自助 */
.page-contact .contact-self {
  background: var(--paper);
  color: var(--ink);
}

.page-contact .contact-self__grid {
  display: grid;
  gap: 26px;
}

.page-contact .contact-self .eyebrow {
  color: var(--cyan-deep);
}

.page-contact .contact-self__head h2 {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(24px, 4.2vw, 36px);
  line-height: 1.22;
  letter-spacing: -0.02em;
  color: var(--ink);
  max-width: 16ch;
}

.page-contact .contact-self__head p {
  margin: 0 0 22px;
  font-size: 15px;
  line-height: 1.82;
  color: #3A4A55;
}

.page-contact .contact-self__head .btn {
  display: inline-block;
}

.page-contact .qa {
  border-bottom: 1px solid rgba(11, 17, 24, 0.14);
}

.page-contact .qa:first-child {
  border-top: 1px solid rgba(11, 17, 24, 0.14);
}

.page-contact .qa summary {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 0;
  cursor: pointer;
  list-style: none;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.55;
  color: var(--ink);
}

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

.page-contact .qa summary::after {
  content: "+";
  flex: none;
  font-family: var(--font-mono);
  font-size: 20px;
  line-height: 1;
  color: var(--cyan-deep);
  transition: transform 0.18s var(--ease);
}

.page-contact .qa[open] summary::after {
  transform: rotate(45deg);
  color: var(--coral);
}

.page-contact .qa[open] summary {
  color: var(--cyan-deep);
}

.page-contact .qa p {
  margin: 0 0 18px;
  padding-left: 2px;
  font-size: 14px;
  line-height: 1.85;
  color: #40505B;
}

/* 页尾窄条 */
.page-contact .contact-strip {
  background: var(--deep-2);
  border-top: 1px solid var(--line-strong);
  padding-block: clamp(24px, 4vw, 38px);
}

.page-contact .contact-strip__inner {
  display: grid;
  gap: 18px;
}

.page-contact .contact-strip__list {
  margin: 0;
  display: grid;
  gap: 10px;
}

.page-contact .contact-strip__item {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 12px;
  align-items: baseline;
  font-size: 13px;
}

.page-contact .contact-strip__item dt {
  min-width: 64px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--mist);
}

.page-contact .contact-strip__item dd {
  margin: 0;
  color: var(--text);
  word-break: break-word;
}

.page-contact .contact-strip__mono {
  font-family: var(--font-mono);
  color: var(--cyan-soft);
}

.page-contact .contact-strip__top {
  justify-self: start;
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  padding-bottom: 2px;
  transition: border-color 0.2s var(--ease), color 0.2s var(--ease);
}

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

@media (min-width: 760px) {
  .page-contact .contact-fix__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .fix-coop {
    grid-column: 1 / -1;
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 8px 26px;
    align-items: center;
  }

  .page-contact .fix-coop h3 {
    grid-column: 1;
  }

  .page-contact .fix-coop p {
    grid-column: 1;
    margin-bottom: 0;
  }

  .page-contact .fix-coop .btn {
    grid-column: 2;
    grid-row: 1 / span 2;
    white-space: nowrap;
  }

  .page-contact .contact-strip__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px 30px;
  }
}

@media (min-width: 900px) {
  .page-contact .contact-top__grid {
    grid-template-columns: minmax(0, 8fr) minmax(0, 4fr);
    align-items: end;
    gap: 40px;
  }

  .page-contact .contact-top__note {
    margin-bottom: 8px;
  }

  .page-contact .contact-duo__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: 30px;
    align-items: start;
  }

  .page-contact .contact-card {
    margin-top: 34px;
  }

  .page-contact .contact-card__body {
    padding: 34px 32px 30px;
  }

  .page-contact .contact-prep {
    padding: 40px 42px;
  }

  .page-contact .contact-flow__lead {
    margin-bottom: 40px;
  }

  .page-contact .contact-flow__art {
    right: 2%;
    top: -34%;
    width: 30%;
    max-width: 340px;
    opacity: 0.18;
  }

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

  .page-contact .flow-steps__item {
    padding: 20px 24px 22px;
    border-left: 1px solid var(--line-strong);
    background: rgba(6, 24, 38, 0.5);
    border-radius: 0;
  }

  .page-contact .flow-steps__item:last-child {
    border-right: 1px solid var(--line-strong);
  }

  .page-contact .contact-self__grid {
    grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
    gap: 46px;
    align-items: start;
  }

  .page-contact .contact-self__head {
    position: sticky;
    top: 28px;
  }

  .page-contact .contact-strip__inner {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 26px;
  }

  .page-contact .contact-strip__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 12px 26px;
  }

  .page-contact .contact-strip__top {
    justify-self: end;
  }
}

@media (min-width: 1180px) {
  .page-contact .contact-top__head h1 {
    max-width: 17ch;
  }

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

@media (prefers-reduced-motion: reduce) {
  .page-contact .prep-list__item,
  .page-contact .flow-steps__item,
  .page-contact .fix-item,
  .page-contact .qa summary::after,
  .page-contact .contact-strip__top {
    transition: none;
  }

  .page-contact .fix-item:hover {
    transform: none;
  }
}
<<<END>>>