.page-contact {
  --contact-gap-lg: clamp(2rem, 5vw, 3.5rem);
  --contact-gap-md: clamp(1rem, 2.5vw, 1.6rem);
  --contact-ink-soft: rgba(234, 242, 236, 0.84);
  max-width: var(--content-max);
  margin-inline: auto;
  padding: clamp(1rem, 3vw, 1.75rem) clamp(0.9rem, 3vw, 1.5rem) clamp(3rem, 6vw, 4.5rem);
  font-family: var(--font-body);
  color: var(--ivory);
}

.page-contact .chapter {
  margin-top: var(--contact-gap-lg);
}

/* ---------- 章节头 ---------- */
.page-contact .chapter-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.45rem 0.9rem;
  margin-bottom: 1.35rem;
  padding-bottom: 0.7rem;
  border-bottom: 1px solid var(--line);
}

.page-contact .chapter-num {
  font-family: var(--font-numeric);
  font-size: clamp(1.35rem, 4vw, 2rem);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--amber);
}

.page-contact .chapter-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.3rem, 4.2vw, 2rem);
  font-weight: 800;
  line-height: 1.16;
  letter-spacing: -0.01em;
  color: var(--ivory);
}

.page-contact .chapter-note {
  margin: 0 0 0 auto;
  text-align: right;
  color: var(--moss);
}

/* ---------- 首屏联系卡 ---------- */
.page-contact .contact-hero {
  position: relative;
  display: grid;
  gap: clamp(1rem, 3vw, 1.75rem);
  padding: clamp(1.15rem, 3.5vw, 2.6rem);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  overflow: hidden;
  background:
    radial-gradient(95% 120% at 108% -12%, rgba(122, 92, 255, 0.3), transparent 58%),
    radial-gradient(60% 80% at -12% 118%, rgba(53, 242, 208, 0.16), transparent 62%),
    linear-gradient(155deg, var(--pine) 0%, var(--ink) 64%);
}

.page-contact .hero-main {
  display: grid;
  gap: 0.55rem;
  align-content: start;
}

.page-contact .hero-title {
  margin: 0.35rem 0 0;
  font-family: var(--font-display);
  font-size: clamp(2rem, 7.4vw, 3.6rem);
  font-weight: 900;
  line-height: 1.03;
  letter-spacing: -0.02em;
  color: var(--ivory);
}

.page-contact .hero-title-mark {
  display: block;
  color: var(--neon);
}

.page-contact .hero-lead {
  margin: 0.4rem 0 0;
  max-width: 48ch;
  font-size: 0.95rem;
  line-height: 1.75;
  color: var(--contact-ink-soft);
}

.page-contact .hero-lines {
  display: grid;
  gap: 0.85rem;
  margin-top: 1.2rem;
}

.page-contact .channel-line {
  display: grid;
  gap: 0.3rem;
  align-content: start;
  padding: 0.85rem 1rem;
  border: 1px solid var(--line-strong);
  border-left: 3px solid var(--neon);
  border-radius: 4px var(--radius) var(--radius) 4px;
  background: linear-gradient(180deg, rgba(18, 58, 47, 0.88), rgba(7, 26, 22, 0.72));
}

.page-contact .channel-key {
  margin: 0;
  font-family: var(--font-numeric);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  color: var(--moss);
}

.page-contact .channel-value {
  margin: 0;
  font-family: var(--font-numeric);
  font-size: clamp(1rem, 3.4vw, 1.42rem);
  font-weight: 700;
  line-height: 1.28;
  letter-spacing: -0.01em;
  color: var(--neon);
  overflow-wrap: anywhere;
}

.page-contact .channel-note {
  margin: 0;
  font-size: 0.8rem;
  line-height: 1.55;
  color: var(--moss);
}

.page-contact .copy-btn {
  justify-self: start;
  margin-top: 0.35rem;
  padding: 0.4rem 0.85rem;
  border: 0;
  border-radius: 999px;
  font-family: var(--font-numeric);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--ink);
  background: var(--neon);
  cursor: pointer;
  transition: background 0.2s ease, box-shadow 0.2s ease;
}

.page-contact .copy-btn:hover {
  background: #5cf6d9;
  box-shadow: 0 0 14px rgba(53, 242, 208, 0.4);
}

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

.page-contact .hero-side {
  padding: 1rem 1.1rem;
  border: 1px dashed var(--line-strong);
  border-radius: var(--radius);
  background: rgba(12, 43, 35, 0.6);
}

.page-contact .side-caption {
  margin: 0 0 0.8rem;
  font-family: var(--font-numeric);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  color: var(--amber);
}

.page-contact .hero-hints {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.8rem;
}

.page-contact .hero-hints li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.6rem;
  align-items: start;
  font-size: 0.9rem;
  line-height: 1.6;
  color: var(--contact-ink-soft);
}

.page-contact .hint-num {
  padding-top: 0.18rem;
  font-family: var(--font-numeric);
  font-size: 0.76rem;
  color: var(--neon);
}

.page-contact .hero-visual {
  margin: 0;
  height: clamp(140px, 36vw, 220px);
  border: 1px solid var(--line);
  border-radius: calc(var(--radius) - 4px);
  overflow: hidden;
}

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

/* ---------- 01 邮件与电话 ---------- */
.page-contact .when-grid {
  display: grid;
  gap: var(--contact-gap-md);
}

.page-contact .when-card {
  padding: 1.2rem 1.15rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.page-contact .when-card--mail {
  background: linear-gradient(165deg, var(--field), var(--pine) 78%);
}

.page-contact .when-card--phone {
  background: linear-gradient(200deg, rgba(122, 92, 255, 0.24), var(--pine) 72%);
}

.page-contact .when-card h3 {
  margin: 0 0 0.75rem;
  font-family: var(--font-display);
  font-size: 1.12rem;
  font-weight: 800;
  letter-spacing: 0.02em;
  color: var(--ivory);
}

.page-contact .tick-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.55rem;
}

.page-contact .tick-list li {
  position: relative;
  padding-left: 1.15rem;
  font-size: 0.92rem;
  line-height: 1.62;
  color: var(--contact-ink-soft);
}

.page-contact .tick-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 7px;
  height: 7px;
  background: var(--neon);
  transform: rotate(45deg);
}

.page-contact .when-foot {
  margin: 0.9rem 0 0;
  padding-top: 0.7rem;
  border-top: 1px solid var(--line);
  font-size: 0.84rem;
  line-height: 1.6;
  color: var(--moss);
}

.page-contact .inline-mail {
  font-family: var(--font-numeric);
  color: var(--neon);
  overflow-wrap: anywhere;
}

.page-contact .inline-num {
  font-family: var(--font-numeric);
  font-weight: 700;
  color: var(--amber);
}

.page-contact .address-strip {
  margin-top: var(--contact-gap-md);
  padding: 0.9rem 1.1rem;
  border-left: 3px solid var(--amber);
  border-radius: 0 var(--radius) var(--radius) 0;
  background: rgba(12, 43, 35, 0.72);
  display: grid;
  gap: 0.3rem;
}

.page-contact .address-key {
  margin: 0;
  font-family: var(--font-numeric);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  color: var(--amber);
}

.page-contact .address-value {
  margin: 0;
  font-size: 1rem;
  line-height: 1.5;
  color: var(--ivory);
}

.page-contact .address-note {
  margin: 0;
  font-size: 0.82rem;
  line-height: 1.6;
  color: var(--moss);
}

/* ---------- 02 问题分流 ---------- */
.page-contact .route-table {
  display: grid;
  gap: 1px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--line);
}

.page-contact .route-cell {
  display: grid;
  gap: 0.55rem;
  align-content: start;
  padding: 0 0 1.1rem;
  background: var(--pine);
  transition: background 0.2s ease;
}

.page-contact .route-cell:hover,
.page-contact .route-cell:focus-within {
  background: var(--field);
}

.page-contact .route-head {
  margin: 0;
  padding: 1rem 1rem 0.75rem;
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  color: var(--ink);
  background: var(--neon);
  clip-path: polygon(0 0, 100% 0, 100% 76%, 0 100%);
}

.page-contact .route-desc,
.page-contact .route-meta,
.page-contact .route-link {
  margin-inline: 1rem;
  margin-block: 0;
}

.page-contact .route-desc {
  font-size: 0.88rem;
  line-height: 1.65;
  color: var(--contact-ink-soft);
}

.page-contact .route-meta {
  font-size: 0.82rem;
  line-height: 1.55;
  color: var(--moss);
}

.page-contact .meta-key {
  display: inline-block;
  margin-right: 0.4rem;
  padding: 0.05rem 0.4rem;
  border: 1px solid var(--line-strong);
  border-radius: 4px;
  font-family: var(--font-numeric);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  color: var(--amber);
}

.page-contact .route-link {
  justify-self: start;
  font-size: 0.82rem;
  line-height: 1.5;
  color: var(--neon);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s ease;
}

.page-contact .route-link:hover {
  border-bottom-color: var(--neon);
}

/* ---------- 03 提问清单 ---------- */
.page-contact .check-layout {
  display: grid;
  gap: var(--contact-gap-md);
}

.page-contact .checklist {
  list-style: none;
  margin: 0 0 1.2rem;
  padding: 0;
  display: grid;
  gap: 0.55rem;
}

.page-contact .check-item {
  position: relative;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.8rem;
  align-items: start;
  padding: 0.8rem 0.95rem;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: rgba(12, 43, 35, 0.68);
  cursor: pointer;
  transition: border-color 0.2s ease, background 0.2s ease;
}

.page-contact .check-item:hover {
  border-color: var(--line-strong);
  background: rgba(18, 58, 47, 0.8);
}

.page-contact .check-input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.page-contact .check-box {
  position: relative;
  display: block;
  width: 22px;
  height: 22px;
  margin-top: 0.1rem;
  border: 2px solid var(--neon);
  border-radius: 5px;
  transition: background 0.18s ease, box-shadow 0.18s ease;
}

.page-contact .check-box::after {
  content: "";
  position: absolute;
  inset: 0;
  margin: auto;
  width: 10px;
  height: 6px;
  border-left: 2px solid var(--ink);
  border-bottom: 2px solid var(--ink);
  transform: rotate(-45deg) scale(0.4);
  opacity: 0;
  transition: opacity 0.18s ease, transform 0.18s ease;
}

.page-contact .check-input:checked + .check-box {
  background: var(--neon);
  box-shadow: 0 0 14px rgba(53, 242, 208, 0.45);
}

.page-contact .check-input:checked + .check-box::after {
  opacity: 1;
  transform: rotate(-45deg) scale(1);
}

.page-contact .check-input:focus-visible + .check-box {
  outline: 2px solid var(--amber);
  outline-offset: 3px;
}

.page-contact .check-text strong {
  display: block;
  font-size: 0.94rem;
  font-weight: 700;
  color: var(--ivory);
}

.page-contact .check-text em {
  display: block;
  margin-top: 0.15rem;
  font-style: normal;
  font-size: 0.83rem;
  line-height: 1.55;
  color: var(--moss);
}

.page-contact .check-template {
  padding: 1rem 1.1rem;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: linear-gradient(150deg, rgba(122, 92, 255, 0.18), rgba(12, 43, 35, 0.92));
}

.page-contact .template-title {
  margin: 0 0 0.6rem;
  font-family: var(--font-numeric);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  color: var(--amber);
}

.page-contact .template-body {
  margin: 0;
  font-family: var(--font-numeric);
  font-size: 0.8rem;
  line-height: 1.85;
  color: var(--contact-ink-soft);
  white-space: pre-wrap;
  overflow-x: auto;
}

.page-contact .template-note {
  margin: 0.7rem 0 0;
  font-size: 0.79rem;
  line-height: 1.55;
  color: var(--moss);
}

.page-contact .check-figure {
  margin: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--pine);
}

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

.page-contact .check-figcap {
  padding: 0.7rem 0.9rem;
  border-top: 1px solid var(--line);
  font-size: 0.81rem;
  line-height: 1.55;
  color: var(--moss);
}

/* ---------- 04 回复节奏 ---------- */
.page-contact .reply-track {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.9rem;
}

.page-contact .reply-track li {
  display: grid;
  gap: 0.25rem;
  padding: 0.95rem 1.05rem;
  border-left: 2px solid var(--line-strong);
  border-radius: 0 var(--radius) var(--radius) 0;
  background: linear-gradient(90deg, rgba(18, 58, 47, 0.78), rgba(18, 58, 47, 0.05));
}

.page-contact .reply-track li:first-child {
  border-left-color: var(--neon);
}

.page-contact .reply-time {
  font-family: var(--font-numeric);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--amber);
}

.page-contact .reply-track h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.02rem;
  font-weight: 800;
  color: var(--ivory);
}

.page-contact .reply-track p {
  margin: 0;
  font-size: 0.88rem;
  line-height: 1.65;
  color: var(--contact-ink-soft);
}

/* ---------- 05 服务范围与备案 ---------- */
.page-contact .registry-strip {
  display: grid;
  gap: 1.4rem;
  padding: clamp(1.15rem, 3vw, 2rem);
  border: 1px solid rgba(234, 242, 236, 0.16);
  border-radius: var(--radius);
  background: linear-gradient(135deg, var(--wine), #2c0a19 80%);
}

.page-contact .registry-eyebrow {
  margin: 0 0 0.5rem;
  color: #f0b8cd;
}

.page-contact .registry-title {
  margin: 0 0 0.6rem;
  font-family: var(--font-display);
  font-size: clamp(1.3rem, 3.6vw, 1.9rem);
  font-weight: 900;
  line-height: 1.16;
  letter-spacing: -0.01em;
  color: var(--ivory);
}

.page-contact .registry-copy {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.72;
  color: rgba(234, 242, 236, 0.86);
}

.page-contact .registry-facts {
  margin: 0;
  display: grid;
  gap: 0.65rem;
  align-content: start;
}

.page-contact .registry-facts > div {
  padding-top: 0.55rem;
  border-top: 1px solid rgba(234, 242, 236, 0.2);
}

.page-contact .registry-facts dt {
  font-family: var(--font-numeric);
  font-size: 0.68rem;
  letter-spacing: 0.18em;
  color: #efb6cb;
}

.page-contact .registry-facts dd {
  margin: 0.2rem 0 0;
  font-size: 0.89rem;
  line-height: 1.55;
  color: var(--ivory);
  overflow-wrap: anywhere;
}

.page-contact .registry-links {
  margin: 0.85rem 0 0;
  font-size: 0.84rem;
  line-height: 1.7;
  color: var(--moss);
}

.page-contact .registry-links a {
  color: var(--neon);
  text-decoration: none;
  border-bottom: 1px solid var(--line-strong);
}

.page-contact .registry-links a:hover {
  border-bottom-color: var(--neon);
}

/* ---------- 06 帮助中心直达 ---------- */
.page-contact .help-grid {
  display: grid;
  gap: var(--contact-gap-md);
}

.page-contact .help-card {
  display: grid;
  gap: 0.5rem;
  align-content: start;
  padding: 1.1rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--pine);
  color: inherit;
  text-decoration: none;
  transition: transform 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

.page-contact .help-card:hover {
  transform: translateY(-3px);
  border-color: var(--line-strong);
  background: var(--field);
}

.page-contact .help-card h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.02rem;
  font-weight: 800;
  line-height: 1.38;
  color: var(--ivory);
}

.page-contact .help-card p {
  margin: 0;
  font-size: 0.85rem;
  line-height: 1.62;
  color: var(--contact-ink-soft);
}

.page-contact .help-tag {
  justify-self: start;
}

.page-contact .help-go {
  margin-top: 0.25rem;
  font-family: var(--font-numeric);
  font-size: 0.74rem;
  letter-spacing: 0.1em;
  color: var(--neon);
}

.page-contact .help-more {
  margin: 1.2rem 0 0;
  font-size: 0.87rem;
  line-height: 1.72;
  color: var(--moss);
}

.page-contact .help-more a {
  color: var(--neon);
  text-decoration: none;
  border-bottom: 1px solid var(--line-strong);
}

.page-contact .help-more a:hover {
  border-bottom-color: var(--neon);
}

/* ---------- 断点 ---------- */
@media (min-width: 640px) {
  .page-contact .hero-lines {
    grid-template-columns: minmax(0, 1.45fr) minmax(0, 1fr);
  }
}

@media (min-width: 780px) {
  .page-contact .help-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .reply-track {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .reply-track li {
    border-left: 0;
    border-top: 2px solid var(--line-strong);
    border-radius: 0 0 var(--radius) var(--radius);
    background: linear-gradient(180deg, rgba(18, 58, 47, 0.78), rgba(18, 58, 47, 0.04));
  }

  .page-contact .reply-track li:first-child {
    border-top-color: var(--neon);
  }
}

@media (min-width: 860px) {
  .page-contact .when-grid {
    grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr);
  }

  .page-contact .route-table {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-contact .registry-strip {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr);
    align-items: start;
  }
}

@media (min-width: 900px) {
  .page-contact .check-layout {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: start;
  }
}

@media (min-width: 960px) {
  .page-contact .contact-hero {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
    align-items: start;
    padding: clamp(1.75rem, 3vw, 2.75rem);
  }

  .page-contact .hero-visual {
    position: absolute;
    inset: 0 0 0 auto;
    width: 46%;
    height: 100%;
    border: 0;
    border-radius: 0;
    opacity: 0.4;
    z-index: 0;
    -webkit-mask-image: linear-gradient(100deg, transparent 0%, #000 58%);
    mask-image: linear-gradient(100deg, transparent 0%, #000 58%);
  }

  .page-contact .hero-main,
  .page-contact .hero-side {
    position: relative;
    z-index: 1;
  }

  .page-contact .hero-lead {
    font-size: 1rem;
  }
}

@media (hover: hover) {
  .page-contact .route-cell .route-link {
    opacity: 0.62;
    transition: opacity 0.2s ease, border-color 0.2s ease;
  }

  .page-contact .route-cell:hover .route-link,
  .page-contact .route-cell:focus-within .route-link {
    opacity: 1;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .copy-btn,
  .page-contact .check-box,
  .page-contact .check-box::after,
  .page-contact .route-cell,
  .page-contact .route-link,
  .page-contact .help-card {
    transition: none;
  }

  .page-contact .help-card:hover {
    transform: none;
  }
}
<<<END>>>