.page-contact {
  --ct-grid: rgba(199, 211, 232, .055);
  --ct-line: rgba(199, 211, 232, .14);
  --ct-amber-line: rgba(242, 181, 68, .34);
  --ct-violet-line: rgba(109, 91, 208, .42);
  --ct-deep: #050813;
  background-color: var(--ink);
  background-image:
    linear-gradient(var(--ct-grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--ct-grid) 1px, transparent 1px);
  background-size: 72px 72px;
  background-position: center top;
  color: var(--white);
  font-family: var(--font-body);
  overflow-x: hidden;
}

.page-contact h1,
.page-contact h2,
.page-contact h3 {
  font-family: var(--font-display);
  letter-spacing: -.015em;
  margin: 0;
}

.page-contact p { margin: 0; }

.page-contact .mono {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
}

/* ---------- 面包屑 ---------- */
.page-contact .ct-crumb-wrap {
  padding-top: 22px;
  padding-bottom: 6px;
}

.page-contact .breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--mist);
}

.page-contact .breadcrumb__item + .breadcrumb__item::before {
  content: "/";
  margin-right: 8px;
  color: var(--line-strong);
}

.page-contact .breadcrumb__link {
  color: var(--silver);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-contact .breadcrumb__link:hover {
  color: var(--amber);
  border-bottom-color: var(--amber);
}

.page-contact .breadcrumb__current { color: var(--amber); }

/* ---------- 首屏 ---------- */
.page-contact .ct-hero {
  position: relative;
  padding-bottom: clamp(28px, 5vw, 48px);
}

.page-contact .ct-hero::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--ct-violet-line) 30%, var(--ct-amber-line) 70%, transparent);
  opacity: .7;
}

.page-contact .ct-hero__inner {
  display: grid;
  gap: 34px;
  padding-block: clamp(34px, 6vw, 56px) clamp(24px, 4vw, 32px);
}

.page-contact .eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--violet);
  margin-bottom: 16px;
  display: inline-block;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--ct-violet-line);
}

.page-contact h1 {
  font-size: clamp(30px, 6.4vw, 58px);
  line-height: 1.12;
  font-weight: 800;
  color: var(--white);
  text-wrap: balance;
}

.page-contact .ct-hero__intro {
  margin-top: 20px;
  max-width: 40em;
  font-size: 16px;
  line-height: 1.8;
  color: var(--silver);
}

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

.page-contact .ct-hero__facts {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 2px;
  margin: 30px 0 0;
  border-top: 1px solid var(--ct-line);
  background: var(--ct-line);
}

.page-contact .ct-hero__fact {
  background: var(--ink);
  padding: 16px 14px 14px;
}

.page-contact .ct-hero__fact dt {
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--mist);
  margin-bottom: 8px;
}

.page-contact .ct-hero__fact dd {
  margin: 0;
  font-size: 17px;
  font-weight: 700;
  color: var(--white);
}

.page-contact .ct-hero__fact dd .mono {
  font-size: 24px;
  color: var(--amber);
  letter-spacing: 0;
  margin-right: 2px;
}

.page-contact .ct-hero__figure {
  position: relative;
  margin: 0;
  border: 1px solid var(--ct-line);
  border-radius: var(--radius);
  overflow: hidden;
  background:
    radial-gradient(circle at 76% 18%, rgba(109, 91, 208, .26), transparent 58%),
    linear-gradient(160deg, rgba(18, 38, 77, .9), rgba(5, 8, 19, .96));
}

.page-contact .ct-hero__figure::after {
  content: "";
  position: absolute;
  inset: 10px;
  border: 1px dashed rgba(199, 211, 232, .13);
  border-radius: calc(var(--radius) - 6px);
  pointer-events: none;
}

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

.page-contact .ct-hero__figure figcaption {
  position: relative;
  z-index: 1;
  padding: 12px 18px 16px;
  font-size: 12px;
  line-height: 1.65;
  color: var(--mist);
  border-top: 1px solid var(--ct-line);
  background: rgba(7, 11, 26, .72);
}

/* ---------- 章节头统一 ---------- */
.page-contact .ct-section-head {
  position: relative;
  padding-left: 0;
  margin-bottom: clamp(28px, 4vw, 44px);
  max-width: 62em;
}

.page-contact .ct-section-num {
  display: inline-block;
  font-size: 13px;
  color: var(--amber);
  letter-spacing: .18em;
  margin-bottom: 14px;
  padding: 3px 10px;
  border: 1px solid var(--ct-amber-line);
  border-radius: 999px;
  background: var(--amber-soft);
}

.page-contact h2 {
  font-size: clamp(23px, 3.6vw, 38px);
  line-height: 1.24;
  font-weight: 800;
  color: var(--white);
  text-wrap: balance;
}

.page-contact .ct-section-lead {
  margin-top: 16px;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--silver);
  max-width: 44em;
}

/* ---------- 01 权益 ---------- */
.page-contact .ct-rights {
  padding-block: clamp(46px, 7vw, 84px);
  border-top: 1px solid var(--ct-line);
  background:
    radial-gradient(ellipse at 12% 0%, rgba(18, 38, 77, .8), transparent 62%),
    transparent;
}

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

.page-contact .ct-rights__index {
  border: 1px solid var(--ct-line);
  border-left: 2px solid var(--violet);
  border-radius: var(--radius-sm);
  background: var(--glass);
  padding: 20px 18px;
  backdrop-filter: blur(8px);
}

.page-contact .ct-rights__index-title {
  color: var(--violet);
  letter-spacing: .18em;
  font-size: 11px;
  margin-bottom: 14px;
}

.page-contact .ct-rights__index-list {
  list-style: none;
  margin: 0 0 16px;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-contact .ct-rights__index-list a {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 10px 8px;
  border-radius: var(--radius-sm);
  color: var(--silver);
  text-decoration: none;
  font-size: 14.5px;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-contact .ct-rights__index-list a .mono {
  color: var(--mist);
  font-size: 11px;
  flex: none;
}

.page-contact .ct-rights__index-list a:hover,
.page-contact .ct-rights__index-list a:focus-visible {
  background: rgba(242, 181, 68, .1);
  color: var(--amber);
}

.page-contact .ct-rights__index-list a:hover .mono,
.page-contact .ct-rights__index-list a:focus-visible .mono {
  color: var(--amber);
}

.page-contact .ct-rights__index-note {
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--mist);
  padding-top: 14px;
  border-top: 1px dashed var(--ct-line);
}

.page-contact .ct-rights__list {
  display: grid;
  gap: 10px;
  align-content: start;
}

.page-contact .ct-right {
  border: 1px solid var(--ct-line);
  border-radius: var(--radius-sm);
  background: rgba(18, 38, 77, .34);
  overflow: hidden;
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-contact .ct-right[open] {
  border-color: var(--ct-amber-line);
  border-left: 2px solid var(--amber);
  background: rgba(18, 38, 77, .58);
}

.page-contact .ct-right__summary {
  display: grid;
  grid-template-columns: auto 1fr;
  grid-template-areas:
    "code title"
    "code hint";
  gap: 3px 14px;
  align-items: center;
  padding: 16px 44px 16px 16px;
  cursor: pointer;
  list-style: none;
  position: relative;
}

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

.page-contact .ct-right__summary::after {
  content: "+";
  position: absolute;
  right: 16px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  font-size: 18px;
  color: var(--mist);
  transition: color var(--dur) var(--ease);
}

.page-contact .ct-right[open] .ct-right__summary::after {
  content: "−";
  color: var(--amber);
}

.page-contact .ct-right__summary:hover::after { color: var(--amber); }

.page-contact .ct-right__code {
  grid-area: code;
  align-self: start;
  font-size: 11px;
  color: var(--amber);
  letter-spacing: .08em;
  padding: 3px 7px;
  border: 1px solid var(--ct-amber-line);
  border-radius: 3px;
  background: var(--amber-soft);
}

.page-contact .ct-right__title {
  grid-area: title;
  font-size: 17px;
  font-weight: 700;
  color: var(--white);
}

.page-contact .ct-right__hint {
  grid-area: hint;
  font-size: 12.5px;
  color: var(--mist);
}

.page-contact .ct-right__body {
  padding: 0 16px 18px;
  border-top: 1px dashed var(--ct-line);
  margin-top: 2px;
  padding-top: 16px;
}

.page-contact .ct-right__body p {
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--silver);
}

.page-contact .ct-right__points {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  display: grid;
  gap: 9px;
}

.page-contact .ct-right__points li {
  position: relative;
  padding-left: 18px;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--mist);
}

.page-contact .ct-right__points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 6px;
  height: 6px;
  background: var(--amber);
  border-radius: 1px;
  opacity: .85;
}

/* ---------- 02 流程 ---------- */
.page-contact .ct-flow {
  padding-block: clamp(46px, 7vw, 84px);
  border-top: 1px solid var(--ct-line);
  background: linear-gradient(180deg, rgba(14, 59, 74, .34), transparent 46%);
}

.page-contact .ct-timeline {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
  position: relative;
}

.page-contact .ct-timeline__item {
  position: relative;
  padding-left: 30px;
  padding-bottom: 18px;
}

.page-contact .ct-timeline__item::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 18px;
  bottom: -2px;
  width: 1px;
  background: linear-gradient(180deg, var(--ct-amber-line), rgba(199, 211, 232, .16));
}

.page-contact .ct-timeline__item:last-child::before { display: none; }

.page-contact .ct-timeline__node {
  position: absolute;
  left: 0;
  top: 14px;
  width: 15px;
  height: 15px;
  border-radius: 50%;
  border: 1px solid var(--ct-amber-line);
  background: var(--ink);
  box-shadow: 0 0 0 4px rgba(242, 181, 68, .09);
}

.page-contact .ct-timeline__node::after {
  content: "";
  position: absolute;
  inset: 4px;
  border-radius: 50%;
  background: var(--amber);
}

.page-contact .ct-timeline__card {
  border: 1px solid var(--ct-line);
  border-radius: var(--radius-sm);
  background: rgba(7, 11, 26, .62);
  padding: 16px 18px 18px;
  transition: border-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-contact .ct-timeline__card:hover {
  border-color: var(--ct-amber-line);
  transform: translateX(3px);
}

.page-contact .ct-timeline__step {
  display: block;
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--amber);
  margin-bottom: 8px;
}

.page-contact .ct-timeline__card h3 {
  font-size: 16px;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 8px;
}

.page-contact .ct-timeline__card p {
  font-size: 14px;
  line-height: 1.8;
  color: var(--silver);
}

.page-contact .ct-flow__figure {
  margin: 26px 0 0;
  border: 1px solid var(--ct-line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--graphite);
}

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

.page-contact .ct-flow__figure figcaption {
  padding: 12px 18px 14px;
  font-size: 12px;
  line-height: 1.65;
  color: var(--mist);
  border-top: 1px solid var(--ct-line);
}

/* ---------- 03 联系通道 ---------- */
.page-contact .ct-channels {
  padding-block: clamp(46px, 7vw, 84px);
  border-top: 1px solid var(--ct-line);
  background: radial-gradient(ellipse at 90% 10%, rgba(109, 91, 208, .2), transparent 60%);
}

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

.page-contact .ct-channel {
  border: 1px solid var(--ct-line);
  border-radius: var(--radius);
  padding: 22px 20px;
  background: rgba(18, 38, 77, .4);
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.page-contact .ct-channel--paper {
  background: var(--paper);
  border-color: rgba(27, 36, 54, .16);
  color: var(--graphite);
}

.page-contact .ct-channel__code {
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--amber);
}

.page-contact .ct-channel--paper .ct-channel__code { color: #9A6B0C; }

.page-contact .ct-channel h3 {
  font-size: 16px;
  font-weight: 700;
  color: var(--white);
}

.page-contact .ct-channel--paper h3 { color: var(--graphite); }

.page-contact .ct-channel__value {
  font-family: var(--font-mono);
  font-size: 14.5px;
  line-height: 1.6;
  color: var(--amber);
  word-break: break-word;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  background: rgba(242, 181, 68, .08);
  border: 1px dashed var(--ct-amber-line);
}

.page-contact .ct-channel--paper .ct-channel__value {
  color: #7A4F02;
  background: rgba(122, 79, 2, .07);
  border-color: rgba(122, 79, 2, .28);
}

.page-contact .ct-channel__desc {
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--mist);
}

.page-contact .ct-channel--paper .ct-channel__desc { color: #46536B; }

.page-contact .ct-channels__note {
  margin-top: 18px;
  padding: 16px 18px;
  border-left: 2px solid var(--amber);
  background: rgba(242, 181, 68, .07);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--silver);
}

.page-contact .ct-channels__note .mono {
  display: inline-block;
  color: var(--amber);
  margin-right: 10px;
  letter-spacing: .14em;
}

/* ---------- 04 表单指引 ---------- */
.page-contact .ct-form {
  padding-block: clamp(46px, 7vw, 84px);
  border-top: 1px solid var(--ct-line);
  background: linear-gradient(180deg, rgba(12, 20, 40, .9), rgba(7, 11, 26, .4));
}

.page-contact .ct-form__layout {
  display: grid;
  gap: 20px;
}

.page-contact .ct-form__fields {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
  counter-reset: none;
}

.page-contact .ct-form__field {
  border: 1px solid var(--ct-line);
  border-radius: var(--radius-sm);
  background: rgba(27, 36, 54, .5);
  padding: 14px 16px 15px;
  transition: border-color var(--dur) var(--ease);
}

.page-contact .ct-form__field:hover { border-color: var(--ct-violet-line); }

.page-contact .ct-form__field-name {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 14.5px;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 6px;
}

.page-contact .ct-form__field-name em {
  font-style: normal;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: .08em;
  padding: 2px 6px;
  border-radius: 3px;
  color: var(--amber);
  background: var(--amber-soft);
  border: 1px solid var(--ct-amber-line);
}

.page-contact .ct-form__field p {
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--mist);
}

.page-contact .ct-form__check {
  border-radius: var(--radius);
  padding: 22px 20px;
  background: var(--paper);
  color: var(--graphite);
  border-top: 3px solid var(--amber);
}

.page-contact .ct-form__check h3 {
  font-size: 17px;
  font-weight: 800;
  color: var(--graphite);
  margin-bottom: 14px;
}

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

.page-contact .ct-form__check-list li {
  position: relative;
  padding-left: 34px;
  font-size: 13.5px;
  line-height: 1.75;
  color: #33405A;
}

.page-contact .ct-form__check-list li .mono {
  position: absolute;
  left: 0;
  top: 1px;
  font-size: 11px;
  color: #9A6B0C;
  border: 1px solid rgba(154, 107, 12, .34);
  border-radius: 3px;
  padding: 2px 5px;
  background: rgba(242, 181, 68, .18);
}

.page-contact .ct-form__check-note {
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px dashed rgba(27, 36, 54, .22);
  font-size: 12.5px;
  line-height: 1.78;
  color: #52607A;
}

/* ---------- 05 优先路径 ---------- */
.page-contact .ct-routes {
  padding-block: clamp(46px, 7vw, 84px) clamp(56px, 8vw, 96px);
  border-top: 1px solid var(--ct-line);
}

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

.page-contact .ct-route {
  border: 1px solid var(--ct-line);
  border-top: 2px solid var(--violet);
  border-radius: var(--radius-sm);
  background: rgba(18, 38, 77, .32);
  padding: 20px 18px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.page-contact .ct-route--gold {
  border-top-color: var(--amber);
  background: rgba(242, 181, 68, .06);
}

.page-contact .ct-route__code {
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--violet);
}

.page-contact .ct-route--gold .ct-route__code { color: var(--amber); }

.page-contact .ct-route h3 {
  font-size: 16px;
  font-weight: 700;
  color: var(--white);
}

.page-contact .ct-route p {
  font-size: 13.5px;
  line-height: 1.78;
  color: var(--silver);
  flex: 1 1 auto;
}

.page-contact .ct-route__links {
  list-style: none;
  margin: 4px 0 0;
  padding: 10px 0 0;
  border-top: 1px dashed var(--ct-line);
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-contact .ct-route__links a {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--silver);
  text-decoration: none;
  padding: 6px 12px;
  border: 1px solid var(--ct-line);
  border-radius: 999px;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-contact .ct-route__links a:hover,
.page-contact .ct-route__links a:focus-visible {
  color: var(--ink);
  background: var(--amber);
  border-color: var(--amber);
}

.page-contact .ct-routes__back {
  margin-top: 24px;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--mist);
}

.page-contact .ct-routes__back a {
  color: var(--amber);
  text-decoration: none;
  border-bottom: 1px solid var(--ct-amber-line);
}

.page-contact .ct-routes__back a:hover { border-bottom-color: var(--amber); }

/* ---------- 返回顶部按钮外观微调 ---------- */
.page-contact .back-to-top {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
}

/* ---------- 桌面栅格 ---------- */
@media (min-width: 720px) {
  .page-contact .ct-channels__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .page-contact .ct-timeline {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 26px;
  }

  .page-contact .ct-timeline__item:nth-child(2n)::before { display: none; }
}

@media (min-width: 960px) {
  .page-contact .ct-hero__inner {
    grid-template-columns: minmax(0, 1.02fr) minmax(0, .98fr);
    gap: clamp(32px, 4vw, 58px);
    align-items: start;
    padding-block: clamp(48px, 5vw, 76px) clamp(32px, 4vw, 52px);
  }

  .page-contact .ct-hero__figure {
    margin-top: 6px;
  }

  .page-contact .ct-rights__layout {
    grid-template-columns: minmax(210px, 262px) minmax(0, 1fr);
    gap: 32px;
  }

  .page-contact .ct-rights__index {
    position: sticky;
    top: 96px;
  }

  .page-contact .ct-timeline {
    grid-template-columns: minmax(0, 1fr);
    max-width: 760px;
    margin-left: 0;
  }

  .page-contact .ct-timeline__item:nth-child(2n)::before { display: block; }
  .page-contact .ct-timeline__item:last-child::before { display: none; }

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

  .page-contact .ct-form__layout {
    grid-template-columns: minmax(0, 1.35fr) minmax(300px, .85fr);
    gap: 30px;
    align-items: start;
  }

  .page-contact .ct-flow__figure {
    margin-top: 32px;
  }
}

@media (min-width: 1200px) {
  .page-contact .ct-hero__inner {
    grid-template-columns: minmax(0, 1fr) minmax(0, .92fr);
  }

  .page-contact .ct-rights__layout {
    grid-template-columns: 278px minmax(0, 1fr);
    gap: 40px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .ct-timeline__card:hover { transform: none; }
  .page-contact * {
    transition-duration: 1ms !important;
  }
}
<<<END>>>