.page-contact {
  --contact-rail: 21.5rem;
  --contact-gap: clamp(1.75rem, 3.6vw, 3.5rem);
  --contact-cyan-soft: rgba(56, 242, 208, .12);
  --contact-orange-soft: rgba(255, 122, 26, .12);
  padding-block: clamp(1.1rem, 3vw, 2rem) clamp(3.5rem, 8vw, 6rem);
  background: var(--ink-950);
  color: var(--paper);
}

.page-contact a {
  color: inherit;
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  overflow: hidden;
  padding-block: clamp(1.2rem, 3vw, 2.2rem) clamp(1.8rem, 4.5vw, 3rem);
  border-bottom: var(--edge);
  margin-bottom: var(--contact-gap);
}

.page-contact .contact-hero::before {
  content: "";
  position: absolute;
  left: -2rem;
  bottom: -1px;
  width: min(78%, 640px);
  height: 46%;
  background: linear-gradient(102deg, rgba(56, 242, 208, .16), rgba(56, 242, 208, 0) 72%);
  clip-path: polygon(0 100%, 100% 18%, 100% 100%);
  pointer-events: none;
  z-index: 0;
}

.page-contact .contact-hero > * {
  position: relative;
  z-index: 1;
}

.page-contact .contact-hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  margin: 0 0 .85rem;
  font-size: .68rem;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--cyan-100);
}

.page-contact .contact-hero__title {
  margin: 0 0 1rem;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.95rem, 6.4vw, 3.9rem);
  line-height: 1.02;
  letter-spacing: -.02em;
  max-width: 22ch;
}

.page-contact .contact-hero__title span {
  color: var(--cyan);
}

.page-contact .contact-hero__lead {
  margin: 0;
  max-width: 46ch;
  font-size: clamp(.94rem, 1.6vw, 1.0625rem);
  line-height: 1.8;
  color: var(--slate);
}

/* 第一步提示条 */
.page-contact .first-step {
  margin-top: clamp(1.4rem, 3vw, 2.1rem);
  padding: 1rem 1.05rem 1.1rem;
  border: var(--edge);
  border-left: 2px solid var(--orange);
  border-radius: var(--radius);
  background: linear-gradient(118deg, var(--ink-900), rgba(10, 27, 48, .35));
  display: grid;
  gap: .8rem;
}

.page-contact .first-step__label {
  margin: 0;
  font-size: .68rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--orange-100);
}

.page-contact .first-step__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: .55rem;
}

.page-contact .first-step__node {
  display: grid;
  grid-template-columns: 1.9rem minmax(0, 1fr);
  gap: .6rem;
  align-items: baseline;
  font-size: .92rem;
  line-height: 1.5;
  color: var(--paper);
}

.page-contact .first-step__num {
  font-size: .74rem;
  letter-spacing: .06em;
  color: var(--cyan);
}

.page-contact .first-step__cta {
  justify-self: start;
}

/* 锚点索引 */
.page-contact .contact-index {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem .6rem;
  margin-top: clamp(1.1rem, 2.5vw, 1.6rem);
}

.page-contact .contact-index a {
  font-family: var(--font-mono);
  font-size: .71rem;
  letter-spacing: .06em;
  color: var(--slate);
  text-decoration: none;
  border: 1px solid var(--line-600);
  border-radius: 999px;
  padding: .3rem .75rem;
  transition: color .2s, border-color .2s, background-color .2s;
}

.page-contact .contact-index a:hover,
.page-contact .contact-index a:focus-visible {
  color: var(--cyan-100);
  border-color: rgba(56, 242, 208, .5);
  background: rgba(56, 242, 208, .07);
}

/* ---------- 左右命令台布局 ---------- */
.page-contact .contact-layout {
  display: grid;
  gap: var(--contact-gap);
}

.page-contact .contact-body {
  display: grid;
  gap: 0;
  min-width: 0;
}

/* ---------- 左侧联系卡 ---------- */
.page-contact .info-card {
  position: relative;
  overflow: hidden;
  padding: 1.15rem 1.15rem 1.3rem;
  border: var(--edge);
  border-radius: var(--radius);
  background: var(--ink-900);
  box-shadow: var(--shadow-soft);
}

.page-contact .info-card::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--cyan), rgba(56, 242, 208, 0) 72%);
  opacity: .75;
}

.page-contact .info-card__tag {
  margin: 0 0 .3rem;
  font-size: .66rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--slate);
}

.page-contact .info-card__title {
  margin: 0 0 .5rem;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.3rem, 3.4vw, 1.6rem);
  line-height: 1.1;
  letter-spacing: -.01em;
}

.page-contact .info-card__status {
  display: inline-flex;
  align-items: center;
  gap: .45rem;
  margin: 0 0 .35rem;
  font-size: .7rem;
  letter-spacing: .05em;
  color: var(--cyan-100);
}

.page-contact .info-item {
  padding-block: .85rem;
  border-top: var(--edge);
}

.page-contact .info-item:first-of-type {
  border-top: 0;
  padding-top: .9rem;
}

.page-contact .info-item__label {
  margin: 0 0 .35rem;
  font-size: .66rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--slate);
}

.page-contact .info-item__value {
  display: block;
  margin: 0 0 .55rem;
  font-size: .94rem;
  line-height: 1.6;
  color: var(--paper);
  text-decoration: none;
  word-break: break-all;
  border-bottom: 1px solid rgba(56, 242, 208, .32);
  padding-bottom: 1px;
  transition: color .2s, border-color .2s;
}

.page-contact .info-item__value:hover,
.page-contact .info-item__value:focus-visible {
  color: var(--cyan);
  border-color: var(--cyan);
}

.page-contact .info-item__value--plain {
  border-bottom: 0;
  margin-bottom: 0;
  font-size: .87rem;
  color: var(--slate);
}

.page-contact .info-item__value--plain.mono {
  color: var(--slate);
  letter-spacing: .05em;
  font-size: .78rem;
}

.page-contact .copy-btn {
  appearance: none;
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .06em;
  color: var(--cyan);
  background: transparent;
  border: 1px solid rgba(56, 242, 208, .45);
  border-radius: 999px;
  padding: .28rem .72rem;
  cursor: pointer;
  transition: background-color .2s, border-color .2s, color .2s;
}

.page-contact .copy-btn:hover,
.page-contact .copy-btn:focus-visible {
  background: rgba(56, 242, 208, .1);
  border-color: var(--cyan);
}

.page-contact .copy-btn[data-copied] {
  color: var(--ink-950);
  background: var(--green);
  border-color: var(--green);
}

.page-contact .info-card__note {
  margin: .8rem 0 0;
  padding-top: .8rem;
  border-top: 1px dashed rgba(40, 71, 100, .9);
  font-size: .8rem;
  line-height: 1.7;
  color: var(--slate);
}

.page-contact .info-card__note a {
  color: var(--cyan-100);
  text-decoration: none;
  border-bottom: 1px solid rgba(56, 242, 208, .35);
}

.page-contact .info-card__note a:hover {
  color: var(--cyan);
}

/* ---------- 右侧章节骨架 ---------- */
.page-contact .contact-block {
  padding-block: clamp(1.6rem, 3.6vw, 2.6rem);
  border-top: var(--edge);
}

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

.page-contact .block-head {
  display: grid;
  gap: .38rem;
  margin-bottom: clamp(1rem, 2.4vw, 1.6rem);
}

.page-contact .block-head__idx {
  font-size: .69rem;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-contact .block-head__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.3rem, 3.2vw, 1.85rem);
  line-height: 1.14;
  letter-spacing: -.01em;
}

.page-contact .block-head__note {
  margin: 0;
  max-width: 48ch;
  font-size: .9rem;
  line-height: 1.75;
  color: var(--slate);
}

/* ---------- 受理范围 ---------- */
.page-contact .scope-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line-600);
  border: var(--edge);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-contact .scope-item {
  display: grid;
  gap: .35rem;
  padding: 1rem 1.05rem 1.05rem;
  background: var(--ink-900);
}

.page-contact .scope-item__title {
  display: flex;
  align-items: center;
  gap: .5rem;
  margin: 0;
  font-family: var(--font-body);
  font-size: .98rem;
  font-weight: 700;
  line-height: 1.45;
}

.page-contact .scope-item__desc {
  margin: 0;
  font-size: .88rem;
  line-height: 1.72;
  color: var(--slate);
}

.page-contact .scope-item__link {
  justify-self: start;
  margin-top: .2rem;
  font-family: var(--font-mono);
  font-size: .71rem;
  letter-spacing: .06em;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(56, 242, 208, .35);
}

.page-contact .scope-item__link:hover,
.page-contact .scope-item__link:focus-visible {
  color: var(--cyan-100);
  border-color: var(--cyan-100);
}

/* ---------- 图片 ---------- */
.page-contact .contact-figure {
  margin: clamp(1.5rem, 3.6vw, 2.4rem) 0 0;
}

.page-contact .contact-figure--wave {
  margin-top: clamp(1.4rem, 3vw, 2rem);
}

/* ---------- 反馈准备清单 ---------- */
.page-contact .checklist {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: .6rem;
}

.page-contact .checklist__item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: .8rem;
  align-items: start;
  padding: .85rem .95rem;
  border: var(--edge);
  border-radius: var(--radius);
  background: rgba(16, 43, 72, .42);
  transition: border-color .2s, background-color .2s;
}

.page-contact .checklist__item:hover {
  border-color: rgba(56, 242, 208, .4);
  background: rgba(16, 43, 72, .62);
}

.page-contact .checklist__box {
  appearance: none;
  -webkit-appearance: none;
  position: relative;
  flex: none;
  width: 1.05rem;
  height: 1.05rem;
  margin: .16rem 0 0;
  border: 1px solid var(--line-600);
  border-radius: 2px;
  background: var(--ink-950);
  cursor: pointer;
  transition: background-color .18s, border-color .18s;
}

.page-contact .checklist__box:hover {
  border-color: var(--cyan);
}

.page-contact .checklist__box:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.page-contact .checklist__box:checked {
  background: var(--cyan);
  border-color: var(--cyan);
}

.page-contact .checklist__box:checked::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: .3rem;
  height: .58rem;
  border-right: 2px solid var(--ink-950);
  border-bottom: 2px solid var(--ink-950);
  transform: translate(-50%, -62%) rotate(45deg);
}

.page-contact .checklist__label {
  display: block;
  cursor: pointer;
}

.page-contact .checklist__title {
  display: block;
  margin-bottom: .16rem;
  font-size: .94rem;
  font-weight: 600;
  color: var(--paper);
}

.page-contact .checklist__hint {
  display: block;
  font-size: .84rem;
  line-height: 1.65;
  color: var(--slate);
}

/* ---------- 站内工具 ---------- */
.page-contact .tool-grid {
  display: grid;
  gap: 1.25rem;
}

.page-contact .tool-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: .85rem;
  counter-reset: contact-step;
}

.page-contact .tool-steps li {
  counter-increment: contact-step;
  display: grid;
  grid-template-columns: 2.1rem minmax(0, 1fr);
  gap: 0 .85rem;
  padding-bottom: .85rem;
  border-bottom: 1px solid rgba(40, 71, 100, .65);
}

.page-contact .tool-steps li:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-contact .tool-steps li::before {
  content: "0" counter(contact-step);
  padding-top: .25rem;
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .05em;
  color: var(--orange);
}

.page-contact .tool-steps p {
  margin: 0;
  font-size: .89rem;
  line-height: 1.75;
  color: var(--slate);
}

.page-contact .tool-steps strong {
  display: block;
  margin-bottom: .12rem;
  font-size: .94rem;
  font-weight: 700;
  color: var(--paper);
}

.page-contact .tool-note {
  display: grid;
  gap: .7rem;
  align-content: start;
  padding: 1rem 1.05rem 1.1rem;
  border-left: 2px solid var(--orange);
  border-radius: var(--radius);
  background: linear-gradient(140deg, var(--contact-orange-soft), rgba(255, 122, 26, .02));
}

.page-contact .tool-note__tag {
  margin: 0;
  font-size: .66rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--orange-100);
}

.page-contact .tool-note p {
  margin: 0;
  font-size: .87rem;
  line-height: 1.75;
  color: var(--paper);
}

.page-contact .tool-note .btn {
  justify-self: start;
}

/* ---------- 服务时间与响应 ---------- */
.page-contact .response-grid {
  display: grid;
  gap: 1.25rem;
}

.page-contact .hours-card {
  padding: 1.15rem 1.15rem 1.25rem;
  border: var(--edge);
  border-radius: var(--radius);
  background: linear-gradient(155deg, var(--ink-800), var(--ink-900));
}

.page-contact .hours-card__tag {
  margin: 0;
  font-size: .66rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--slate);
}

.page-contact .hours-card__big {
  margin: .35rem 0 .6rem;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.7rem, 5vw, 2.5rem);
  line-height: 1.05;
  letter-spacing: -.01em;
  color: var(--paper);
}

.page-contact .hours-card__big em {
  font-style: normal;
  color: var(--cyan);
}

.page-contact .hours-card__note {
  margin: 0;
  font-size: .82rem;
  line-height: 1.7;
  color: var(--slate);
}

.page-contact .response-list {
  margin: 0;
  display: grid;
  gap: 0;
}

.page-contact .response-list > div {
  padding: .85rem 0;
  border-top: var(--edge);
}

.page-contact .response-list > div:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-contact .response-list dt {
  margin-bottom: .22rem;
  font-size: .93rem;
  font-weight: 700;
  color: var(--paper);
}

.page-contact .response-list dd {
  margin: 0;
  font-size: .87rem;
  line-height: 1.72;
  color: var(--slate);
}

/* ---------- 断点 ---------- */
@media (min-width: 46rem) {
  .page-contact .first-step__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: .6rem 1rem;
  }

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

  .page-contact .response-grid {
    grid-template-columns: minmax(0, .85fr) minmax(0, 1.15fr);
    gap: 1.6rem;
    align-items: start;
  }
}

@media (min-width: 52rem) {
  .page-contact .tool-grid {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr);
    gap: 1.75rem;
    align-items: start;
  }

  .page-contact .contact-figure--wave {
    max-width: 34rem;
    margin-left: auto;
  }
}

@media (min-width: 62rem) {
  .page-contact .contact-layout {
    grid-template-columns: var(--contact-rail) minmax(0, 1fr);
    gap: clamp(2rem, 4vw, 3.5rem);
    align-items: start;
  }

  .page-contact .contact-rail {
    position: sticky;
    top: 5rem;
  }

  .page-contact .contact-hero__lead {
    max-width: 52ch;
  }
}

@media (prefers-reduced-motion: no-preference) {
  .page-contact .contact-hero__title,
  .page-contact .contact-hero__lead,
  .page-contact .first-step {
    animation: contact-rise .5s cubic-bezier(.2, .7, .3, 1) both;
  }

  .page-contact .contact-hero__lead {
    animation-delay: .07s;
  }

  .page-contact .first-step {
    animation-delay: .14s;
  }
}

@keyframes contact-rise {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}
<<<PAGE_CSS_END>>>