.page-contact {
  position: relative;
  display: block;
  padding-bottom: clamp(36px, 8vw, 84px);
  background:
    radial-gradient(120% 55% at 88% -4%, rgba(37, 227, 196, .09), transparent 60%),
    radial-gradient(90% 45% at 2% 2%, rgba(124, 107, 255, .09), transparent 58%);
}

/* ---------- 面包屑 ---------- */
.page-contact .crumbs {
  margin: clamp(16px, 3.5vw, 28px) 0 clamp(12px, 2.5vw, 20px);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  padding-block: clamp(4px, 1.5vw, 12px) clamp(24px, 5vw, 46px);
}

.page-contact .contact-hero__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(22px, 4.5vw, 40px);
  align-items: stretch;
}

.page-contact .contact-hero__intro {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.page-contact .contact-hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  align-self: flex-start;
  margin: 0;
  padding: 5px 11px;
  border: 1px solid rgba(37, 227, 196, .34);
  background: rgba(37, 227, 196, .06);
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .18em;
}

.page-contact .contact-hero__eyebrow::before {
  content: "";
  flex: none;
  width: 6px;
  height: 6px;
  background: var(--cyan);
}

.page-contact .contact-hero__title {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(28px, 7.2vw, 50px);
  line-height: 1.12;
  letter-spacing: -.02em;
  color: var(--text);
}

.page-contact .contact-hero__intro .lede {
  margin: 0;
  max-width: 46ch;
}

.page-contact .contact-hero__intro .note {
  margin: 0;
  max-width: 46ch;
}

.page-contact .contact-hero__visual {
  position: relative;
  margin: 0;
  border: 1px solid var(--line);
  background: linear-gradient(152deg, var(--ink-800) 0%, var(--panel) 54%, #15314B 100%);
  overflow: hidden;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 22px), 0 100%);
}

.page-contact .contact-hero__visual img {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 210px;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  filter: saturate(.86) contrast(1.08);
  opacity: .92;
}

.page-contact .contact-hero__visual::after {
  content: "";
  position: absolute;
  inset: 12px 12px 26px 12px;
  border: 1px solid rgba(37, 227, 196, .22);
  pointer-events: none;
}

.page-contact .contact-hero__visual::before {
  content: "反馈通道";
  position: absolute;
  left: 0;
  bottom: 0;
  z-index: 2;
  padding: 7px 15px;
  background: var(--paper);
  color: var(--ink-900);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .14em;
}

@media (min-width: 900px) {
  .page-contact .contact-hero__inner {
    grid-template-columns: 5fr 7fr;
    align-items: end;
  }
  .page-contact .contact-hero__visual img {
    height: 100%;
  }
}

/* ---------- 章节通用间距 ---------- */
.page-contact .section {
  margin-top: clamp(42px, 8vw, 72px);
}

/* ---------- 章节标题头 ---------- */
.page-contact .ch-head {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
  margin-bottom: clamp(18px, 3.5vw, 26px);
  padding-bottom: clamp(12px, 2.5vw, 18px);
  border-bottom: 1px solid var(--line);
}

@media (min-width: 720px) {
  .page-contact .ch-head {
    grid-template-columns: auto minmax(0, 1fr);
    gap: 6px clamp(16px, 3vw, 26px);
    align-items: baseline;
  }
}

.page-contact .ch-num {
  display: block;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(30px, 8vw, 52px);
  line-height: .9;
  letter-spacing: -.02em;
  color: rgba(37, 227, 196, .16);
  -webkit-text-stroke: 1px var(--cyan);
  user-select: none;
}

.page-contact .ch-title {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(19px, 4.4vw, 24px);
  line-height: 1.3;
  letter-spacing: .01em;
  color: var(--text);
}

.page-contact .ch-sub {
  margin: 7px 0 0;
  max-width: 64ch;
  font-size: 15px;
  line-height: 1.72;
  color: var(--muted);
}

/* ---------- 渠道卡 ---------- */
.page-contact .channel-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

@media (max-width: 639px) {
  .page-contact .channel-grid {
    grid-auto-flow: column;
    grid-auto-columns: min(84%, 300px);
    grid-template-columns: none;
    overflow-x: auto;
    overscroll-behavior-x: contain;
    scroll-snap-type: x mandatory;
    margin-inline: calc(var(--gut) * -1);
    padding: 2px var(--gut) 14px;
    scrollbar-width: thin;
  }
  .page-contact .channel-card {
    scroll-snap-align: start;
  }
}

@media (min-width: 640px) {
  .page-contact .channel-grid {
    grid-auto-flow: row;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1020px) {
  .page-contact .channel-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-contact .channel-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 10px;
  min-height: 188px;
  padding: 26px 20px 22px;
  border: 1px solid var(--line);
  background: linear-gradient(180deg, var(--panel) 0%, var(--ink-800) 100%);
}

.page-contact .channel-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
}

.page-contact .channel-card--mail::before {
  background: linear-gradient(90deg, var(--cyan), rgba(37, 227, 196, 0));
}

.page-contact .channel-card--tel::before {
  background: linear-gradient(90deg, var(--orange), rgba(255, 122, 47, 0));
}

.page-contact .channel-card--addr::before {
  background: linear-gradient(90deg, var(--violet), rgba(124, 107, 255, 0));
}

.page-contact .channel-card__index {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .2em;
  color: var(--muted);
}

.page-contact .channel-card__label {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 17px;
  letter-spacing: .04em;
  color: var(--text);
}

.page-contact .channel-card__value {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(15px, 3.9vw, 18px);
  line-height: 1.5;
  letter-spacing: -.01em;
  color: var(--cyan);
  overflow-wrap: anywhere;
}

.page-contact .channel-card--tel .channel-card__value {
  color: var(--orange);
}

.page-contact .channel-card--addr .channel-card__value {
  color: var(--text);
  font-size: clamp(14px, 3.6vw, 17px);
}

.page-contact .channel-card__meta {
  margin: auto 0 0;
  padding-top: 12px;
  border-top: 1px dashed var(--line);
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 区块配图 ---------- */
.page-contact .ch-figure {
  margin: clamp(22px, 4vw, 30px) 0 0;
  border: 1px solid var(--line);
  background: var(--ink-800);
}

.page-contact .ch-figure img {
  display: block;
  width: 100%;
  height: clamp(170px, 26vw, 300px);
  object-fit: cover;
  opacity: .82;
}

.page-contact .ch-figure .figure__cap {
  padding: 12px 16px;
  border-top: 1px solid var(--line);
  font-size: 13px;
  line-height: 1.68;
  color: var(--muted);
}

/* ---------- 受理范围 ---------- */
.page-contact .scope-split {
  display: grid;
  grid-template-columns: 1fr;
  border: 1px solid var(--line);
  background: var(--ink-800);
}

@media (min-width: 760px) {
  .page-contact .scope-split {
    grid-template-columns: 1fr 1fr;
  }
  .page-contact .scope-col--out {
    border-left: 1px solid var(--line);
  }
}

.page-contact .scope-col {
  padding: clamp(20px, 4vw, 30px);
}

.page-contact .scope-col--out {
  background: rgba(10, 23, 38, .55);
}

.page-contact .scope-col__title {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 16px;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 16px;
  letter-spacing: .06em;
  color: var(--text);
}

.page-contact .scope-col__dot {
  flex: none;
  width: 8px;
  height: 8px;
  background: var(--cyan);
}

.page-contact .scope-col--out .scope-col__dot {
  background: var(--muted);
}

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

.page-contact .scope-list li {
  position: relative;
  padding-left: 20px;
  font-size: 15.5px;
  line-height: 1.7;
  color: var(--text);
}

.page-contact .scope-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .72em;
  width: 10px;
  height: 1px;
  background: var(--cyan);
}

.page-contact .scope-col--out .scope-list li {
  color: var(--muted);
}

.page-contact .scope-col--out .scope-list li::before {
  background: var(--line);
}

/* ---------- 提交要素清单 ---------- */
.page-contact .tip-list {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.page-contact .tip-item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  padding: clamp(14px, 3vw, 20px) 0;
  border-bottom: 1px solid var(--line);
}

.page-contact .tip-item__num {
  padding-top: 3px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .12em;
  color: var(--cyan);
  user-select: none;
}

.page-contact .tip-item__title {
  margin: 0 0 5px;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 16px;
  letter-spacing: .02em;
  color: var(--text);
}

.page-contact .tip-item__body p {
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--muted);
}

/* ---------- 处理流程 ---------- */
.page-contact .flow {
  --flow-pad: clamp(18px, 4vw, 28px);
  position: relative;
  display: grid;
  gap: clamp(18px, 3.5vw, 26px);
  padding-left: var(--flow-pad);
}

.page-contact .flow::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  bottom: 8px;
  width: 1px;
  background: linear-gradient(180deg, var(--cyan) 0%, var(--violet) 58%, transparent 100%);
}

.page-contact .flow__step {
  position: relative;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
}

.page-contact .flow__step::before {
  content: "";
  position: absolute;
  top: 8px;
  left: calc(var(--flow-pad) * -1 - 3px);
  width: 7px;
  height: 7px;
  background: var(--cyan);
}

.page-contact .flow__step-num {
  padding-top: 1px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .12em;
  color: var(--orange);
  user-select: none;
}

.page-contact .flow__title {
  margin: 0 0 4px;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 16px;
  letter-spacing: .02em;
  color: var(--text);
}

.page-contact .flow__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--muted);
}

.page-contact .flow-note {
  margin: clamp(18px, 3.5vw, 24px) 0 0;
}

/* ---------- 其他事项 ---------- */
.page-contact .other-links {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

@media (min-width: 720px) {
  .page-contact .other-links {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.page-contact .other-link {
  display: grid;
  gap: 5px;
  padding: 16px 18px;
  border: 1px solid var(--line);
  background: rgba(18, 38, 58, .55);
  text-decoration: none;
  transition: border-color .2s var(--ease), background-color .2s var(--ease), transform .2s var(--ease);
}

.page-contact .other-link:hover,
.page-contact .other-link:focus-visible {
  border-color: var(--cyan);
  background: rgba(37, 227, 196, .07);
  transform: translateX(3px);
}

.page-contact .other-link__title {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 16px;
  letter-spacing: .02em;
  color: var(--text);
}

.page-contact .other-link__title::after {
  content: "▸";
  margin-left: 8px;
  font-size: 12px;
  color: var(--cyan);
}

.page-contact .other-link__desc {
  font-size: 14px;
  line-height: 1.66;
  color: var(--muted);
}

/* ---------- 同步与备案信息带 ---------- */
.page-contact .sync-band {
  display: grid;
  gap: 6px;
  margin-top: clamp(36px, 7vw, 64px);
  padding: 16px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-contact .sync-band__node,
.page-contact .sync-band__icp {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .06em;
  color: var(--muted);
}

.page-contact .sync-band__node .mono {
  color: var(--cyan);
}

@media (min-width: 720px) {
  .page-contact .sync-band {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
  }
}

/* ---------- 动效降级 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-contact [data-reveal],
  .page-contact .other-link,
  .page-contact .channel-card {
    transition: none !important;
    animation: none !important;
  }
}
<<<END>>>