.page-contact {
  --cn-hair: rgba(201, 212, 227, 0.12);
  --cn-grid: rgba(38, 49, 63, 0.6);
  --cn-soft: rgba(37, 240, 212, 0.1);

  position: relative;
  overflow-x: clip;
  background:
    radial-gradient(90% 55% at 92% -6%, rgba(138, 107, 255, 0.18), transparent 62%),
    radial-gradient(80% 50% at -5% 4%, rgba(37, 240, 212, 0.1), transparent 58%),
    var(--ink-900);
  color: var(--slate-200);
  font-family: var(--font-body);
}

.page-contact h1,
.page-contact h2,
.page-contact h3 {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.14;
  color: var(--white-000);
}

.page-contact p {
  margin: 0;
}

/* ---------- 面包屑 ---------- */
.page-contact .cn-crumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding-top: clamp(18px, 3vw, 30px);
  font-size: 14px;
  color: var(--muted-400);
}

.page-contact .cn-crumb a {
  color: var(--slate-200);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--dur-fast) var(--ease), border-color var(--dur-fast) var(--ease);
}

.page-contact .cn-crumb a:hover {
  color: var(--signal-cyan);
  border-bottom-color: var(--signal-cyan);
}

/* ---------- 首屏 ---------- */
.page-contact .cn-hero {
  position: relative;
  padding-block: clamp(26px, 4vw, 48px) clamp(40px, 6vw, 72px);
}

.page-contact .cn-hero__inner {
  position: relative;
}

.page-contact .cn-hero__inner::before {
  content: "";
  position: absolute;
  inset: -8px calc(var(--shell-pad) * -1) -8px auto;
  width: 46%;
  background-image:
    linear-gradient(to right, var(--cn-grid) 1px, transparent 1px),
    linear-gradient(to bottom, var(--cn-grid) 1px, transparent 1px);
  background-size: 56px 56px;
  -webkit-mask-image: radial-gradient(80% 70% at 80% 30%, #000, transparent 78%);
  mask-image: radial-gradient(80% 70% at 80% 30%, #000, transparent 78%);
  opacity: 0.85;
  pointer-events: none;
}

.page-contact .cn-hero__inner::after {
  content: "";
  position: absolute;
  right: 4%;
  top: 18%;
  width: min(180px, 26vw);
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--track-orange));
  transform: rotate(-15deg);
  transform-origin: right center;
  pointer-events: none;
}

.page-contact .cn-hero h1 {
  position: relative;
  margin-top: 14px;
  max-width: 18ch;
  font-size: clamp(32px, 6.4vw, 56px);
}

.page-contact .cn-hero__lead {
  position: relative;
  margin-top: 20px;
  max-width: 60ch;
  font-size: clamp(16px, 1.6vw, 17px);
  line-height: 1.75;
  color: var(--slate-200);
}

.page-contact .cn-gauges {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .cn-gauge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-height: 40px;
  padding: 8px 16px;
  border: 1px solid var(--graphite-700);
  border-radius: var(--radius-pill);
  background: rgba(20, 26, 36, 0.72);
  font-size: 13px;
  color: var(--muted-400);
}

.page-contact .cn-gauge__k {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--muted-500);
}

.page-contact .cn-gauge b {
  font-family: var(--font-mono);
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--signal-cyan);
}

/* ---------- 两栏：对接渠道 + 准备材料 ---------- */
.page-contact .cn-cols {
  padding-block: clamp(32px, 5vw, 64px);
  background: var(--charcoal-850);
  border-top: 1px solid var(--cn-hair);
  border-bottom: 1px solid var(--cn-hair);
}

.page-contact .cn-cols__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 48px);
}

.page-contact .cn-aside {
  padding: clamp(20px, 3vw, 30px);
  border: 1px solid var(--graphite-700);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(180deg, rgba(27, 36, 50, 0.95), rgba(16, 22, 32, 0.95));
}

.page-contact .cn-aside__title {
  font-size: clamp(22px, 3vw, 28px);
}

.page-contact .cn-aside__note {
  margin-top: 10px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted-400);
}

.page-contact .cn-channels {
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 18px;
}

.page-contact .cn-channel {
  padding-top: 18px;
  border-top: 1px dashed var(--graphite-700);
}

.page-contact .cn-channel:first-child {
  padding-top: 0;
  border-top: 0;
}

.page-contact .cn-channel__k {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--muted-500);
}

.page-contact .cn-channel__v {
  display: block;
  margin-top: 8px;
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 600;
  line-height: 1.5;
  letter-spacing: 0.03em;
  color: var(--white-000);
  overflow-wrap: anywhere;
}

.page-contact .cn-channel:nth-child(2) .cn-channel__v {
  color: var(--signal-cyan);
}

.page-contact .cn-channel__v--sm {
  font-size: 14px;
  letter-spacing: 0.01em;
  color: var(--slate-200);
}

.page-contact .cn-channel__n {
  display: block;
  margin-top: 8px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted-400);
}

.page-contact .cn-main__title {
  margin-top: 12px;
  font-size: clamp(24px, 3.6vw, 34px);
}

.page-contact .cn-main__lead {
  margin-top: 16px;
  max-width: 62ch;
  font-size: 16px;
  line-height: 1.75;
  color: var(--slate-200);
}

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

.page-contact .cn-prep__item {
  display: grid;
  gap: 6px;
  padding: 15px 18px;
  border-radius: var(--radius-md);
  border-left: 3px solid var(--signal-cyan);
  background: rgba(27, 36, 50, 0.65);
}

.page-contact .cn-prep__k {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--signal-cyan);
}

.page-contact .cn-prep__d {
  font-size: 14px;
  line-height: 1.7;
  color: var(--slate-200);
}

/* ---------- 图片容器 ---------- */
.page-contact .cn-figure {
  margin: 28px 0 0;
  border: 1px solid var(--graphite-700);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--panel-600);
}

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

.page-contact .cn-figure__label {
  display: block;
  padding: 11px 18px;
  border-top: 1px solid var(--graphite-700);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--muted-400);
}

/* ---------- 自助优先 ---------- */
.page-contact .cn-self {
  padding-block: clamp(44px, 7vw, 88px);
}

.page-contact .cn-self h2 {
  margin-top: 12px;
  font-size: clamp(26px, 4vw, 38px);
}

.page-contact .cn-self__lead {
  margin-top: 16px;
  max-width: 64ch;
  font-size: 16px;
  line-height: 1.75;
  color: var(--slate-200);
}

.page-contact .cn-steps {
  margin: 34px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 18px;
}

.page-contact .cn-step {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 26px 22px 22px;
  border: 1px solid var(--graphite-700);
  border-radius: var(--radius-lg);
  background: linear-gradient(158deg, rgba(27, 36, 50, 0.92), rgba(10, 16, 32, 0.92));
  transition: border-color var(--dur-base) var(--ease), transform var(--dur-base) var(--ease);
}

.page-contact .cn-step:hover {
  border-color: rgba(37, 240, 212, 0.5);
  transform: translateY(-3px);
}

.page-contact .cn-step__num {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--track-orange);
}

.page-contact .cn-step h3 {
  font-size: 19px;
}

.page-contact .cn-step p {
  font-size: 15px;
  line-height: 1.75;
  color: var(--slate-200);
}

.page-contact .cn-step__link {
  margin-top: auto;
  align-self: flex-start;
}

/* ---------- 处理流程 ---------- */
.page-contact .cn-flow {
  padding-block: clamp(44px, 7vw, 88px);
  background: var(--charcoal-850);
  border-top: 1px solid var(--cn-hair);
  border-bottom: 1px solid var(--cn-hair);
}

.page-contact .cn-flow__grid {
  display: grid;
  gap: clamp(28px, 4vw, 52px);
}

.page-contact .cn-flow h2 {
  margin-top: 12px;
  font-size: clamp(26px, 4vw, 36px);
}

.page-contact .cn-nodes {
  margin: 30px 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .cn-node {
  position: relative;
  display: grid;
  grid-template-columns: 44px 1fr;
  gap: 18px;
  padding-block: 18px;
}

.page-contact .cn-node:not(:last-child)::before {
  content: "";
  position: absolute;
  left: 21px;
  top: 58px;
  bottom: -6px;
  width: 1px;
  background: linear-gradient(180deg, var(--graphite-700), transparent);
}

.page-contact .cn-node__dot {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 600;
  color: var(--ink-900);
}

.page-contact .cn-node--a .cn-node__dot {
  background: var(--track-orange);
  box-shadow: 0 0 0 6px rgba(255, 106, 43, 0.14);
}

.page-contact .cn-node--b .cn-node__dot {
  background: var(--alert-yellow);
  box-shadow: 0 0 0 6px rgba(255, 210, 63, 0.14);
}

.page-contact .cn-node--c .cn-node__dot {
  background: var(--status-green);
  box-shadow: 0 0 0 6px rgba(46, 212, 122, 0.14);
}

.page-contact .cn-node__body h3 {
  font-size: 18px;
}

.page-contact .cn-node__body p {
  margin-top: 8px;
  max-width: 52ch;
  font-size: 15px;
  line-height: 1.75;
  color: var(--slate-200);
}

.page-contact .cn-figure--flow {
  margin-top: 0;
  align-self: start;
}

/* ---------- 服务范围与备案 ---------- */
.page-contact .cn-region {
  padding-block: clamp(44px, 7vw, 88px);
}

.page-contact .cn-region h2 {
  margin-top: 12px;
  max-width: 24ch;
  font-size: clamp(24px, 3.8vw, 34px);
}

.page-contact .cn-region__lead {
  margin-top: 16px;
  max-width: 64ch;
  font-size: 16px;
  line-height: 1.75;
  color: var(--slate-200);
}

.page-contact .cn-dotmap {
  height: 104px;
  margin-top: 30px;
  border-left: 2px solid var(--signal-cyan);
  border-radius: var(--radius-sm);
  background-image: radial-gradient(rgba(37, 240, 212, 0.5) 1.4px, transparent 1.6px);
  background-size: 18px 18px;
  -webkit-mask-image: linear-gradient(90deg, #000 0%, rgba(0, 0, 0, 0.75) 52%, transparent 100%);
  mask-image: linear-gradient(90deg, #000 0%, rgba(0, 0, 0, 0.75) 52%, transparent 100%);
}

.page-contact .cn-filings {
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-contact .cn-filings .chip {
  min-height: 36px;
  display: inline-flex;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.04em;
}

.page-contact .cn-terms-note {
  margin-top: 22px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--muted-400);
}

.page-contact .cn-terms-note a {
  color: var(--signal-cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 620px) {
  .page-contact .cn-prep {
    grid-template-columns: 1fr 1fr;
  }
}

@media (min-width: 820px) {
  .page-contact .cn-steps {
    grid-template-columns: repeat(3, 1fr);
    gap: 22px;
  }

  .page-contact .cn-step:not(:last-child)::after {
    content: "";
    position: absolute;
    top: 52px;
    right: -22px;
    width: 22px;
    height: 2px;
    background: linear-gradient(90deg, var(--track-orange), transparent);
  }
}

@media (min-width: 900px) {
  .page-contact .cn-cols__grid {
    grid-template-columns: minmax(290px, 360px) minmax(0, 1fr);
    gap: clamp(32px, 5vw, 72px);
    align-items: start;
  }

  .page-contact .cn-aside {
    position: sticky;
    top: 92px;
  }

  .page-contact .cn-flow__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    align-items: center;
  }
}

@media (max-width: 599px) {
  .page-contact .cn-hero__inner::after {
    display: none;
  }

  .page-contact .cn-gauge {
    width: 100%;
    justify-content: space-between;
  }

  .page-contact .cn-dotmap {
    height: 84px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .cn-step,
  .page-contact .cn-crumb a {
    transition: none;
  }

  .page-contact .cn-step:hover {
    transform: none;
  }
}