.page-contact {
  --pc-glow-neon: rgba(53, 230, 168, 0.16);
  --pc-glow-ember: rgba(255, 92, 51, 0.16);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  padding: clamp(26px, 5.5vw, 50px) 0 clamp(34px, 6.5vw, 62px);
  background:
    radial-gradient(120% 100% at 88% 0%, var(--pc-glow-neon), transparent 62%),
    linear-gradient(155deg, var(--ink) 0%, var(--ink-2) 60%, var(--ink-3) 100%);
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}

.page-contact .contact-hero::after {
  content: "";
  position: absolute;
  right: -20%;
  bottom: -62%;
  width: min(560px, 80vw);
  aspect-ratio: 1 / 1;
  border-radius: 50%;
  background: radial-gradient(circle, var(--pc-glow-ember), transparent 68%);
  pointer-events: none;
}

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

.page-contact .contact-hero .breadcrumb {
  margin-bottom: 24px;
}

.page-contact .contact-hero h1 {
  margin: 12px 0 0;
  max-width: 22ch;
  font-family: var(--font-display);
  font-size: clamp(2rem, 7vw, 3.4rem);
  line-height: 1.1;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-contact .contact-hero .lede {
  margin: 18px 0 0;
  max-width: 60ch;
  font-size: 1.02rem;
  line-height: 1.85;
  color: var(--body-text);
}

.page-contact .hero-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .hero-chips li {
  padding: 7px 14px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: var(--glass);
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.05em;
  color: var(--neon-soft);
}

/* ---------- 章节骨架 ---------- */
.page-contact .contact-section {
  position: relative;
  padding: clamp(42px, 8vw, 80px) 0;
  border-bottom: 1px solid var(--line);
}

.page-contact .section__title {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 4.4vw, 2.4rem);
  line-height: 1.15;
  letter-spacing: -0.005em;
  color: var(--paper);
}

.page-contact .section__note {
  margin: 12px 0 0;
  max-width: 58ch;
  line-height: 1.85;
  color: var(--muted);
}

/* ---------- 联系方式一览 ---------- */
.page-contact .channels-section {
  overflow: hidden;
}

.page-contact .channels__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  opacity: 0.2;
  pointer-events: none;
  -webkit-mask-image: linear-gradient(to bottom, transparent, #000 32%, #000 68%, transparent);
  mask-image: linear-gradient(to bottom, transparent, #000 32%, #000 68%, transparent);
}

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

.page-contact .channels-section .wrap {
  position: relative;
  z-index: 1;
}

.page-contact .channels {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-top: 30px;
}

.page-contact .channel {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 26px 22px 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--ink-2);
  overflow: hidden;
  transition: transform 0.2s var(--ease), border-color 0.2s var(--ease), box-shadow 0.2s var(--ease);
}

.page-contact .channel::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  background: var(--pc-accent, var(--neon));
}

.page-contact .channel::after {
  content: "";
  position: absolute;
  right: -56px;
  top: -56px;
  width: 160px;
  height: 160px;
  border-radius: 50%;
  background: radial-gradient(circle, var(--pc-halo, transparent), transparent 70%);
  pointer-events: none;
}

.page-contact .channel--mail {
  --pc-accent: var(--neon);
  --pc-halo: rgba(53, 230, 168, 0.22);
}

.page-contact .channel--phone {
  --pc-accent: var(--amber);
  --pc-halo: rgba(255, 176, 32, 0.2);
}

.page-contact .channel--addr {
  --pc-accent: var(--paper);
  --pc-halo: rgba(242, 247, 245, 0.13);
}

.page-contact .channel:hover,
.page-contact .channel:focus-within {
  transform: translateY(-2px);
  border-color: var(--pc-accent);
  box-shadow: var(--shadow-lift);
}

.page-contact .channel__kind {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.18em;
  color: var(--muted);
}

.page-contact .channel__value {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(0.94rem, 2.2vw, 1.06rem);
  line-height: 1.55;
  color: var(--pc-accent);
  word-break: keep-all;
  overflow-wrap: break-word;
}

.page-contact .channel__use {
  flex: 1;
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.8;
  color: var(--body-text);
}

.page-contact .channel__tag {
  align-self: flex-start;
  padding: 5px 11px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  font-size: 0.75rem;
  letter-spacing: 0.04em;
  color: var(--muted);
}

/* ---------- 反馈类型分流 ---------- */
.page-contact .routing {
  margin-top: 28px;
}

.page-contact .route-row {
  display: grid;
  gap: 10px;
  padding: 24px 0;
  border-top: 1px solid var(--line);
  transition: background 0.2s var(--ease);
}

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

.page-contact .route-row__key {
  padding-top: 4px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.16em;
  color: var(--neon);
}

.page-contact .route-row__body h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.22rem;
  line-height: 1.3;
  letter-spacing: 0.01em;
  color: var(--paper);
}

.page-contact .route-row__body p {
  margin: 8px 0 0;
  max-width: 64ch;
  font-size: 0.95rem;
  line-height: 1.85;
  color: var(--body-text);
}

.page-contact .route-row__body a {
  color: var(--neon-soft);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-contact .route-row__body a:hover,
.page-contact .route-row__body a:focus-visible {
  color: var(--neon);
}

.page-contact .route-row__body .route-row__hint {
  margin-top: 12px;
  padding-left: 14px;
  border-left: 2px solid var(--line-strong);
  font-size: 0.87rem;
  color: var(--muted);
}

/* ---------- 反馈处理流程 ---------- */
.page-contact .flow-figure {
  margin: 28px 0 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--ink-3);
}

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

.page-contact .flow {
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
  margin: 34px 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .flow__step {
  position: relative;
  padding: 26px 0 0;
  border-top: 2px solid var(--line-strong);
}

.page-contact .flow__step::before {
  content: "";
  position: absolute;
  top: -7px;
  left: 0;
  width: 12px;
  height: 12px;
  background: var(--neon);
  box-shadow: 0 0 0 4px rgba(53, 230, 168, 0.14);
}

.page-contact .flow__num {
  display: block;
  margin-bottom: 8px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.16em;
  color: var(--neon);
}

.page-contact .flow__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.2rem;
  letter-spacing: 0.01em;
  color: var(--paper);
}

.page-contact .flow__step p {
  margin: 8px 0 0;
  font-size: 0.94rem;
  line-height: 1.82;
  color: var(--body-text);
}

/* ---------- 到访与信函 ---------- */
.page-contact .visit {
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px;
  margin-top: 26px;
}

.page-contact .visit__addr {
  padding: 24px 22px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: var(--glass);
}

.page-contact .visit__label {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 0.73rem;
  letter-spacing: 0.18em;
  color: var(--neon);
}

.page-contact .visit__line {
  margin: 0;
  font-size: 1.08rem;
  font-weight: 600;
  line-height: 1.7;
  color: var(--paper);
}

.page-contact .visit__notes p {
  margin: 0 0 14px;
  max-width: 62ch;
  line-height: 1.85;
  color: var(--body-text);
}

.page-contact .visit__notes p:last-child {
  margin-bottom: 0;
}

.page-contact .visit__notes a {
  color: var(--neon-soft);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 提交前自查 ---------- */
.page-contact .checklist {
  max-width: 720px;
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .checklist__row {
  border-bottom: 1px dashed var(--line);
}

.page-contact .checklist__row label {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 15px 0;
  cursor: pointer;
}

.page-contact .checklist__box {
  flex: none;
  width: 18px;
  height: 18px;
  margin-top: 3px;
  accent-color: var(--neon);
  cursor: pointer;
}

.page-contact .checklist__text {
  line-height: 1.72;
  color: var(--body-text);
  transition: color 0.2s var(--ease);
}

.page-contact .checklist__box:checked + .checklist__text {
  color: var(--muted);
  text-decoration: line-through;
  text-decoration-color: var(--line-strong);
}

/* ---------- 常见反馈场景 ---------- */
.page-contact .cases {
  max-width: 880px;
  margin-top: 24px;
}

.page-contact .case {
  border-bottom: 1px solid var(--line);
}

.page-contact .case:first-child {
  border-top: 1px solid var(--line);
}

.page-contact .case__summary {
  position: relative;
  padding: 18px 44px 18px 0;
  list-style: none;
  cursor: pointer;
  font-family: var(--font-display);
  font-size: 1.08rem;
  letter-spacing: 0.01em;
  color: var(--paper);
  transition: color 0.2s var(--ease);
}

.page-contact .case__summary::-webkit-details-marker {
  display: none;
}

.page-contact .case__summary:hover,
.page-contact .case__summary:focus-visible {
  color: var(--neon-soft);
}

.page-contact .case__summary::after {
  content: "+";
  position: absolute;
  right: 4px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  font-size: 1.24rem;
  line-height: 1;
  color: var(--neon);
}

.page-contact .case[open] .case__summary::after {
  content: "\2212";
}

.page-contact .case__body {
  padding: 0 0 20px;
  max-width: 66ch;
}

.page-contact .case__body p {
  margin: 0 0 10px;
  font-size: 0.95rem;
  line-height: 1.85;
  color: var(--body-text);
}

.page-contact .case__body p:last-child {
  margin-bottom: 0;
}

/* ---------- 响应式 ---------- */
@media (min-width: 760px) {
  .page-contact .route-row {
    grid-template-columns: 118px minmax(0, 1fr);
    gap: 30px;
    padding: 28px 18px 28px 0;
  }

  .page-contact .route-row:hover {
    background: linear-gradient(90deg, var(--glass), transparent 74%);
  }
}

@media (min-width: 820px) {
  .page-contact .channels {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
  }

  .page-contact .visit {
    grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
    gap: 42px;
    align-items: start;
  }
}

@media (min-width: 860px) {
  .page-contact .flow {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 30px;
  }
}

@media (min-width: 1100px) {
  .page-contact .contact-hero h1 {
    max-width: 18ch;
  }

  .page-contact .channel {
    padding: 30px 26px 28px;
  }
}