.page-contact {
  --pc-gap: clamp(16px, 2.6vw, 28px);
  --pc-radius: 24px;
  --pc-ink: #0A1120;
  --pc-soft-ink: #33475F;
  background: var(--ink);
  color: var(--white);
  font-family: var(--font-body);
  padding-bottom: clamp(48px, 8vw, 96px);
}

.page-contact .container {
  width: 100%;
  max-width: 1140px;
  margin-inline: auto;
  padding-inline: clamp(16px, 4vw, 40px);
}

/* ---------- 首屏 ---------- */
.page-contact .pc-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(24px, 4vw, 46px) 0 clamp(20px, 3vw, 32px);
  background:
    radial-gradient(120% 100% at 86% -18%, rgba(198, 255, 61, .14), transparent 60%),
    radial-gradient(90% 80% at 0% 112%, rgba(255, 90, 43, .13), transparent 62%),
    linear-gradient(180deg, #0A1120 0%, #0C1526 100%);
}

.page-contact .pc-hero::before {
  content: "";
  position: absolute;
  top: -30%;
  right: -12%;
  width: 42%;
  height: 170%;
  background: linear-gradient(170deg, rgba(198, 255, 61, .12), transparent 65%);
  transform: skewX(-12deg);
  pointer-events: none;
}

.page-contact .pc-breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--mist);
  margin-bottom: clamp(18px, 3vw, 28px);
}

.page-contact .pc-breadcrumbs a {
  color: var(--mist);
  text-decoration: none;
  transition: color .22s var(--ease-out);
}

.page-contact .pc-breadcrumbs a:hover,
.page-contact .pc-breadcrumbs a:focus-visible {
  color: var(--volt);
}

.page-contact .pc-eyebrow {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .2em;
  color: var(--volt);
}

.page-contact h1 {
  margin: 0;
  max-width: 20em;
  font-size: clamp(27px, 5.6vw, 50px);
  line-height: 1.16;
  font-weight: 900;
  letter-spacing: -.012em;
  color: var(--white);
}

.page-contact .pc-lead {
  margin: clamp(16px, 2.4vw, 22px) 0 0;
  max-width: 64ch;
  font-size: 16px;
  line-height: 1.85;
  color: #B6C6DB;
}

.page-contact .pc-jump {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: clamp(20px, 3vw, 30px);
}

.page-contact .pc-jump a {
  display: inline-flex;
  align-items: center;
  padding: 8px 16px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(233, 240, 250, .05);
  color: var(--white);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  text-decoration: none;
  transition: background .22s var(--ease-out), border-color .22s var(--ease-out), color .22s var(--ease-out);
}

.page-contact .pc-jump a:hover,
.page-contact .pc-jump a:focus-visible {
  background: var(--volt);
  border-color: var(--volt);
  color: var(--ink);
}

.page-contact .pc-hero__figure {
  margin: clamp(24px, 4vw, 40px) 0 0;
  border-radius: var(--pc-radius);
  overflow: hidden;
}

.page-contact .pc-hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

/* ---------- 双栏对照 ---------- */
.page-contact .pc-split {
  padding: clamp(24px, 4vw, 42px) 0 clamp(10px, 2vw, 18px);
}

.page-contact .pc-split__grid {
  display: grid;
  gap: var(--pc-gap);
}

.page-contact .pc-panel {
  position: relative;
  overflow: hidden;
  border-radius: var(--pc-radius);
  padding: clamp(22px, 3vw, 34px);
}

.page-contact .pc-panel--light {
  background: var(--ice);
  color: var(--pc-ink);
}

.page-contact .pc-panel--light::after {
  content: "";
  position: absolute;
  top: -60px;
  right: -60px;
  width: 190px;
  height: 190px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(198, 255, 61, .7), transparent 70%);
  pointer-events: none;
}

.page-contact .pc-panel--dark {
  background: linear-gradient(180deg, #12203A 0%, #0F1B30 58%, #0D192C 100%);
  border: 1px solid var(--line);
  color: var(--white);
}

.page-contact .pc-kicker {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  color: #2C3F59;
}

.page-contact .pc-kicker--flame,
.page-contact .pc-panel--dark .pc-kicker {
  color: var(--flame);
}

.page-contact .pc-panel h2 {
  margin: 0;
  font-size: clamp(21px, 3vw, 29px);
  line-height: 1.26;
  font-weight: 800;
  letter-spacing: -.01em;
  color: var(--pc-ink);
}

.page-contact .pc-panel--dark h2 {
  color: var(--white);
}

.page-contact .pc-panel__intro {
  margin: 14px 0 18px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--mist);
}

.page-contact .pc-channels {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-contact .pc-channel {
  padding: 14px 16px;
  border-radius: var(--radius-m);
  background: rgba(10, 17, 32, .055);
  border: 1px solid rgba(10, 17, 32, .14);
}

.page-contact .pc-channel__key {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  color: #4B617D;
}

.page-contact .pc-channel__val {
  margin: 6px 0 0;
  font-family: var(--font-mono);
  font-size: clamp(15px, 2vw, 18px);
  font-weight: 700;
  line-height: 1.4;
  color: var(--pc-ink);
  overflow-wrap: anywhere;
}

.page-contact .pc-channel__val--addr {
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 600;
}

.page-contact .pc-channel__hint {
  margin: 6px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: #40546F;
}

.page-contact .pc-note {
  margin: 18px 0 0;
  font-size: 13px;
  line-height: 1.85;
  color: var(--mist);
}

.page-contact .pc-panel--light .pc-note {
  color: #3E5372;
}

.page-contact .pc-note a {
  color: var(--volt);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-contact .pc-panel--light .pc-note a {
  color: #1E4A82;
}

/* 变更说明 */
.page-contact .pc-change-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-contact .pc-change {
  position: relative;
  padding: 16px 18px 16px 24px;
  border-radius: var(--radius-m);
  background: rgba(233, 240, 250, .045);
  border: 1px solid var(--line);
}

.page-contact .pc-change::before {
  content: "";
  position: absolute;
  left: 0;
  top: 14px;
  bottom: 14px;
  width: 4px;
  border-radius: 0 4px 4px 0;
  background: var(--flame);
  animation: pc-pulse 2.4s ease-in-out infinite;
}

.page-contact .pc-change h3 {
  margin: 0 0 6px;
  font-size: 16px;
  font-weight: 800;
  letter-spacing: .02em;
  color: var(--white);
}

.page-contact .pc-change p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: #A8BACE;
}

.page-contact .pc-panel__figure {
  margin: 20px 0 0;
  border-radius: var(--radius-m);
  overflow: hidden;
}

.page-contact .pc-panel__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

@keyframes pc-pulse {
  0%, 100% { opacity: .38; }
  50% { opacity: 1; }
}

/* ---------- 提交准备 ---------- */
.page-contact .pc-prepare {
  padding: clamp(34px, 6vw, 64px) 0 clamp(24px, 4vw, 40px);
}

.page-contact .pc-section-head {
  max-width: 62ch;
  margin-bottom: clamp(20px, 3vw, 30px);
}

.page-contact .pc-section-head h2 {
  margin: 0;
  font-size: clamp(22px, 3.4vw, 32px);
  line-height: 1.26;
  font-weight: 900;
  color: var(--white);
}

.page-contact .pc-section-lead {
  margin: 12px 0 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--mist);
}

.page-contact .pc-prepare__grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: var(--pc-gap);
}

.page-contact .pc-prep {
  padding: 22px 20px;
  border-radius: var(--radius-m);
  background: var(--panel);
  border: 1px solid var(--line);
  border-top: 3px solid var(--volt);
}

.page-contact .pc-prep__num {
  display: block;
  margin-bottom: 12px;
  font-family: var(--font-mono);
  font-size: 24px;
  font-weight: 700;
  letter-spacing: .04em;
  color: var(--volt);
}

.page-contact .pc-prep h3 {
  margin: 0 0 8px;
  font-size: 16px;
  font-weight: 800;
  color: var(--white);
}

.page-contact .pc-prep p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: #A8BACE;
}

/* ---------- 内容合作 ---------- */
.page-contact .pc-partner {
  padding: clamp(32px, 5vw, 58px) 0;
  background: var(--ice);
  color: var(--pc-ink);
}

.page-contact .pc-partner__grid {
  display: grid;
  gap: clamp(26px, 4vw, 44px);
}

.page-contact .pc-partner .pc-kicker {
  color: #3C5170;
}

.page-contact .pc-partner .pc-kicker--flame {
  color: #C33E12;
}

.page-contact .pc-partner h2 {
  margin: 0 0 14px;
  font-size: clamp(22px, 3.4vw, 32px);
  line-height: 1.25;
  font-weight: 900;
  color: var(--pc-ink);
}

.page-contact .pc-partner p {
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--pc-soft-ink);
}

.page-contact .pc-partner__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 8px;
}

.page-contact .pc-partner__actions .btn--ghost {
  border-color: rgba(10, 17, 32, .38);
  color: var(--pc-ink);
}

.page-contact .pc-flow-title {
  margin: 0 0 18px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  color: #3C5170;
}

.page-contact .pc-flow {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
}

.page-contact .pc-flow__step {
  position: relative;
  padding: 0 0 22px 32px;
  border-left: 2px solid rgba(10, 17, 32, .18);
}

.page-contact .pc-flow__step:last-child {
  padding-bottom: 0;
  border-left-color: transparent;
}

.page-contact .pc-flow__dot {
  position: absolute;
  left: -13px;
  top: 0;
  display: grid;
  place-items: center;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--pc-ink);
  color: var(--volt);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
}

.page-contact .pc-flow__step h4 {
  margin: 0 0 6px;
  padding-top: 2px;
  font-size: 15px;
  font-weight: 800;
  color: var(--pc-ink);
}

.page-contact .pc-flow__step p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: #3B4F69;
}

/* ---------- 回复时效 ---------- */
.page-contact .pc-timing {
  padding: clamp(32px, 5vw, 58px) 0 clamp(40px, 6vw, 76px);
}

.page-contact .pc-timing__card {
  position: relative;
  overflow: hidden;
  padding: clamp(24px, 3.4vw, 40px);
  border-radius: var(--pc-radius);
  background: var(--paper);
  border: 1px solid rgba(10, 17, 32, .1);
  box-shadow: var(--shadow-panel);
  color: #1A2333;
}

.page-contact .pc-timing__card::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 6px;
  background: linear-gradient(180deg, var(--volt), var(--flame));
}

.page-contact .pc-timing .pc-kicker {
  color: #6B5C46;
}

.page-contact .pc-timing h2 {
  margin: 0 0 18px;
  font-size: clamp(21px, 3vw, 29px);
  line-height: 1.28;
  font-weight: 900;
  color: #131B28;
}

.page-contact .pc-timing__cols {
  display: grid;
  gap: clamp(16px, 2.4vw, 26px);
}

.page-contact .pc-timing__cols h3 {
  margin: 0 0 8px;
  font-size: 15px;
  font-weight: 800;
  color: #131B28;
}

.page-contact .pc-timing__cols p {
  margin: 0;
  font-size: 14px;
  line-height: 1.85;
  color: #3A4453;
}

.page-contact .pc-timing__foot {
  margin: 22px 0 0;
  padding-top: 18px;
  border-top: 1px dashed rgba(10, 17, 32, .2);
  font-size: 13.5px;
  line-height: 1.8;
  color: #3E4858;
}

.page-contact .pc-timing__foot a {
  color: #1E4A82;
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-contact .pc-prepare__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 900px) {
  .page-contact .pc-split__grid {
    grid-template-columns: 1fr 1fr;
    align-items: stretch;
  }
}

@media (min-width: 960px) {
  .page-contact .pc-partner__grid {
    grid-template-columns: 1fr 1.05fr;
    align-items: start;
  }
}

@media (min-width: 1000px) {
  .page-contact .pc-prepare__grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

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

@media (prefers-reduced-motion: reduce) {
  .page-contact .pc-change::before {
    animation: none;
    opacity: 1;
  }
  .page-contact .pc-jump a,
  .page-contact .pc-breadcrumbs a {
    transition: none;
  }
}
<<<END>>>