.page-contact {
  --pc-line: rgba(110, 139, 255, .2);
  --pc-line-strong: rgba(110, 139, 255, .46);
  --pc-body: #b9c4e2;
  --pc-sec-y: clamp(52px, 7.5vw, 96px);

  background: var(--ink-900);
  color: var(--ice);
  font-size: 16px;
  line-height: 1.8;
  overflow-x: hidden;
}

.page-contact a {
  color: inherit;
}

/* ---------- 首屏 ---------- */
.page-contact .pc-hero {
  position: relative;
  overflow: hidden;
  padding: calc(var(--cmd-h) + clamp(24px, 4vw, 48px)) 0 clamp(48px, 7vw, 88px);
  background:
    radial-gradient(880px 420px at 88% -6%, rgba(11, 211, 162, .17), transparent 62%),
    radial-gradient(760px 420px at 2% 8%, rgba(30, 79, 216, .32), transparent 66%),
    var(--ink-900);
}

.page-contact .pc-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(110, 139, 255, .08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(110, 139, 255, .08) 1px, transparent 1px);
  background-size: 72px 72px;
  -webkit-mask-image: radial-gradient(circle at 72% 18%, #000 0%, transparent 70%);
  mask-image: radial-gradient(circle at 72% 18%, #000 0%, transparent 70%);
  pointer-events: none;
}

.page-contact .pc-hero__wrap {
  position: relative;
  z-index: 1;
  display: grid;
  gap: clamp(30px, 5vw, 54px);
}

.page-contact .pc-hero__h1 {
  margin: clamp(12px, 2vw, 20px) 0 0;
  font-size: clamp(38px, 7.2vw, 86px);
  font-weight: 200;
  line-height: 1.04;
  letter-spacing: -.025em;
  color: var(--ice);
}

.page-contact .pc-hero__h1 span {
  display: block;
  margin-top: .22em;
  font-size: clamp(23px, 3.4vw, 40px);
  font-weight: 900;
  line-height: 1.2;
  letter-spacing: .01em;
  color: var(--amber);
}

.page-contact .pc-hero__intro {
  margin: clamp(20px, 3vw, 30px) 0 0;
  max-width: 46ch;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.85;
  color: var(--pc-body);
}

.page-contact .pc-hero__quick {
  display: grid;
  gap: 12px;
  margin-top: clamp(24px, 3.6vw, 36px);
}

.page-contact .pc-quick {
  display: block;
  padding: 16px 18px;
  border: 1px solid var(--pc-line);
  border-radius: var(--r-m);
  background: rgba(18, 48, 107, .55);
  text-decoration: none;
  transition: border-color .22s var(--ease), background .22s var(--ease), transform .22s var(--ease);
}

.page-contact .pc-quick:hover,
.page-contact .pc-quick:focus-visible {
  border-color: var(--jade);
  background: rgba(18, 48, 107, .82);
  transform: translateY(-2px);
}

.page-contact .pc-quick:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 3px;
}

.page-contact .pc-quick__label {
  display: block;
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--slate);
}

.page-contact .pc-quick__val {
  display: block;
  margin-top: 6px;
  font-size: clamp(13px, 3.3vw, 18px);
  color: var(--amber);
  overflow-wrap: anywhere;
}

.page-contact .pc-hero__shot {
  position: relative;
  align-self: end;
  aspect-ratio: 3 / 2;
  border: 1px solid var(--pc-line-strong);
  border-radius: var(--r-l);
  overflow: hidden;
  background: var(--ink-800);
}

.page-contact .pc-hero__shot img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
}

.page-contact .pc-hero__shot::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(160deg, rgba(11, 211, 162, .18), transparent 56%);
  pointer-events: none;
}

/* ---------- 章节骨架 ---------- */
.page-contact .pc-sec {
  padding: var(--pc-sec-y) 0;
}

.page-contact .pc-sec--alt {
  background: var(--ink-950);
}

.page-contact .pc-head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-bottom: clamp(24px, 3.6vw, 40px);
}

.page-contact .pc-head .idx {
  flex: 0 0 auto;
  color: var(--amber);
  font-size: 13px;
  letter-spacing: .1em;
}

.page-contact .pc-head h2 {
  margin: 0;
  font-size: clamp(21px, 3.2vw, 31px);
  font-weight: 700;
  line-height: 1.35;
  color: var(--ice);
}

.page-contact .pc-lead {
  margin: 0 0 clamp(26px, 4vw, 44px);
  max-width: 60ch;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.85;
  color: var(--pc-body);
}

/* ---------- 01 两种渠道 ---------- */
.page-contact .pc-ways {
  display: grid;
  gap: clamp(20px, 3vw, 30px);
  padding-bottom: 8px;
}

.page-contact .pc-way {
  position: relative;
  padding: clamp(22px, 3vw, 34px);
  border: 1px solid var(--pc-line);
  border-radius: var(--r-l);
  background:
    linear-gradient(165deg, rgba(18, 48, 107, .74), rgba(4, 16, 42, .38));
  overflow: hidden;
}

.page-contact .pc-way::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  background: linear-gradient(90deg, var(--jade), rgba(11, 211, 162, 0));
}

.page-contact .pc-way--call::before {
  background: linear-gradient(90deg, var(--amber), rgba(245, 184, 65, 0));
}

.page-contact .pc-way .tag {
  display: inline-block;
  margin: 0 0 14px;
}

.page-contact .pc-way h3 {
  margin: 0 0 12px;
  font-size: clamp(18px, 2.2vw, 22px);
  font-weight: 700;
  line-height: 1.45;
  color: var(--ice);
}

.page-contact .pc-way p {
  margin: 0 0 20px;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--pc-body);
}

.page-contact .pc-way__line {
  display: block;
  padding-top: 18px;
  border-top: 1px dashed var(--pc-line);
  font-size: clamp(13px, 3.2vw, 17px);
  color: var(--amber);
  text-decoration: none;
  overflow-wrap: anywhere;
}

.page-contact .pc-way--call .pc-way__line {
  color: var(--jade);
}

.page-contact .pc-way__line:hover,
.page-contact .pc-way__line:focus-visible {
  text-decoration: underline;
}

.page-contact .pc-way__hint {
  display: block;
  margin-top: 8px;
  font-size: 12.5px;
  color: var(--slate);
}

/* ---------- 02 提交清单 ---------- */
.page-contact .pc-check {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
}

.page-contact .pc-check__item {
  display: flex;
  gap: 16px;
  padding: clamp(18px, 2.4vw, 26px) 0;
  border-top: 1px solid var(--pc-line);
}

.page-contact .pc-check__item:last-child {
  border-bottom: 1px solid var(--pc-line);
}

.page-contact .pc-check__box {
  position: relative;
  flex: 0 0 auto;
  width: 22px;
  height: 22px;
  margin-top: 6px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: rgba(11, 211, 162, .1);
}

.page-contact .pc-check__box::after {
  content: "";
  position: absolute;
  left: 7px;
  top: 2px;
  width: 6px;
  height: 11px;
  border: solid var(--jade);
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}

.page-contact .pc-check__body h3 {
  margin: 0 0 6px;
  font-size: 17px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--ice);
}

.page-contact .pc-check__body p {
  margin: 0;
  max-width: 58ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--pc-body);
}

/* ---------- 03 响应节奏 ---------- */
.page-contact .pc-timeline {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
}

.page-contact .pc-tl {
  position: relative;
  padding: 0 0 32px 30px;
  margin-left: 8px;
  border-left: 1px solid var(--pc-line);
}

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

.page-contact .pc-tl__dot {
  position: absolute;
  left: -9px;
  top: 4px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--ink-900);
  border: 2px solid var(--jade);
  box-shadow: 0 0 0 4px rgba(11, 211, 162, .15);
}

.page-contact .pc-tl:nth-child(2) .pc-tl__dot {
  border-color: var(--blue);
  box-shadow: 0 0 0 4px rgba(30, 79, 216, .18);
}

.page-contact .pc-tl:nth-child(3) .pc-tl__dot {
  border-color: var(--amber);
  box-shadow: 0 0 0 4px rgba(245, 184, 65, .16);
}

.page-contact .pc-tl__when {
  margin: 0 0 6px;
  font-size: 12.5px;
  letter-spacing: .06em;
  color: var(--jade);
}

.page-contact .pc-tl:nth-child(2) .pc-tl__when {
  color: var(--line);
}

.page-contact .pc-tl:nth-child(3) .pc-tl__when {
  color: var(--amber);
}

.page-contact .pc-tl h3 {
  margin: 0 0 8px;
  font-size: 17px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--ice);
}

.page-contact .pc-tl p {
  margin: 0;
  max-width: 40ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--pc-body);
}

.page-contact .pc-figure {
  margin: clamp(32px, 5vw, 54px) 0 0;
  border: 1px solid var(--pc-line);
  border-radius: var(--r-l);
  overflow: hidden;
  background: var(--ink-800);
}

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

.page-contact .pc-figure figcaption {
  padding: 14px clamp(16px, 2.4vw, 24px);
  border-top: 1px solid var(--pc-line);
  font-size: 13px;
  line-height: 1.6;
  color: var(--slate);
}

/* ---------- 04 自助入口 ---------- */
.page-contact .pc-self__item {
  border-top: 1px solid var(--pc-line);
}

.page-contact .pc-self__item:last-child {
  border-bottom: 1px solid var(--pc-line);
}

.page-contact .pc-self__item summary {
  position: relative;
  padding: 20px 46px 20px 0;
  font-size: 16.5px;
  font-weight: 700;
  line-height: 1.6;
  color: var(--ice);
  cursor: pointer;
  list-style: none;
}

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

.page-contact .pc-self__item summary::after {
  content: "+";
  position: absolute;
  right: 6px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  font-size: 21px;
  line-height: 1;
  color: var(--jade);
  transition: color .2s var(--ease);
}

.page-contact .pc-self__item[open] summary::after {
  content: "−";
  color: var(--amber);
}

.page-contact .pc-self__item summary:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 4px;
}

.page-contact .pc-self__item p {
  margin: 0 0 22px;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--pc-body);
}

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

.page-contact .pc-self__item p a:hover,
.page-contact .pc-self__item p a:focus-visible {
  color: var(--jade);
}

/* ---------- 05 联系信息 ---------- */
.page-contact .pc-info {
  padding-bottom: clamp(56px, 8vw, 100px);
}

.page-contact .pc-info__box {
  padding: clamp(24px, 4vw, 48px);
  border: 1px solid var(--pc-line-strong);
  border-radius: var(--r-l);
  background:
    linear-gradient(180deg, rgba(18, 48, 107, .62), rgba(4, 16, 42, .72));
}

.page-contact .pc-info__grid {
  display: grid;
  gap: clamp(22px, 3.4vw, 36px);
}

.page-contact .pc-info__label {
  margin: 0 0 8px;
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--slate);
}

.page-contact .pc-info__value {
  display: block;
  font-size: clamp(15px, 3.6vw, 21px);
  line-height: 1.5;
  color: var(--amber);
  text-decoration: none;
  overflow-wrap: anywhere;
}

.page-contact .pc-info__value--plain {
  color: var(--ice);
  font-family: var(--font-sans);
  letter-spacing: .01em;
}

.page-contact a.pc-info__value:hover,
.page-contact a.pc-info__value:focus-visible {
  text-decoration: underline;
  text-underline-offset: 4px;
}

.page-contact .pc-info__note {
  margin: 8px 0 0;
  font-size: 12.5px;
  color: var(--slate);
}

.page-contact .pc-info__legal {
  margin: clamp(26px, 4vw, 40px) 0 0;
  padding-top: 18px;
  border-top: 1px solid var(--pc-line);
  font-size: 12.5px;
  letter-spacing: .04em;
  color: var(--slate);
}

/* ---------- 中等屏 ---------- */
@media (min-width: 640px) {
  .page-contact .pc-hero__quick {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-contact .pc-info__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

/* ---------- 桌面 ---------- */
@media (min-width: 900px) {
  .page-contact .pc-hero__wrap {
    grid-template-columns: minmax(0, 1.06fr) minmax(0, .94fr);
    align-items: end;
  }

  .page-contact .pc-hero__shot {
    aspect-ratio: 4 / 3;
  }

  .page-contact .pc-ways {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, .92fr);
    align-items: start;
    gap: clamp(28px, 3.4vw, 48px);
    padding-bottom: 44px;
  }

  .page-contact .pc-way--call {
    margin-top: 44px;
  }

  .page-contact .pc-timeline {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    position: relative;
    padding-bottom: 8px;
  }

  .page-contact .pc-timeline::before {
    content: "";
    position: absolute;
    top: 11px;
    left: 2%;
    right: 2%;
    height: 1px;
    background: linear-gradient(90deg, rgba(110, 139, 255, 0), var(--jade) 12%, var(--line) 50%, var(--amber) 88%, rgba(245, 184, 65, 0));
    opacity: .55;
  }

  .page-contact .pc-tl {
    margin-left: 0;
    padding: 34px 24px 0 0;
    border-left: 0;
  }

  .page-contact .pc-tl:last-child {
    padding-bottom: 0;
  }

  .page-contact .pc-tl__dot {
    left: 0;
    top: 3px;
    background: var(--ink-900);
  }

  .page-contact .pc-info__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, .95fr) minmax(0, .9fr);
  }
}

@media (min-width: 1180px) {
  .page-contact .pc-hero {
    padding-bottom: clamp(72px, 7vw, 104px);
  }

  .page-contact .pc-tl {
    padding-right: 40px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .pc-quick,
  .page-contact .pc-self__item summary::after {
    transition: none;
  }

  .page-contact .pc-quick:hover,
  .page-contact .pc-quick:focus-visible {
    transform: none;
  }
}
<<<END>>>