.page-contact {
  --contact-hair: rgba(94, 113, 128, 0.32);
  --contact-panel: rgba(11, 44, 69, 0.62);
  --contact-glow: rgba(53, 242, 208, 0.14);
  background: var(--c-sea);
  color: var(--c-fog);
  font-family: var(--font-body);
  overflow-x: hidden;
}

.page-contact .section {
  padding: clamp(44px, 7vw, 84px) 0;
}

.page-contact a:focus-visible,
.page-contact button:focus-visible {
  outline: 2px solid var(--c-cyan);
  outline-offset: 3px;
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: clamp(96px, 14vw, 140px) 0 clamp(40px, 6vw, 68px);
  background:
    radial-gradient(120% 90% at 82% 0%, var(--contact-glow), transparent 62%),
    var(--c-sea);
}

.page-contact .hero-visual {
  position: absolute;
  inset: 0;
  z-index: -1;
  margin: 0;
}

.page-contact .hero-visual img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.26;
}

.page-contact .hero-visual::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(3, 18, 29, 0.35) 0%, rgba(6, 27, 43, 0.9) 78%, var(--c-sea) 100%);
}

.page-contact .breadcrumb {
  margin: 0 0 clamp(20px, 4vw, 34px);
  font-size: 13px;
}

.page-contact .breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  color: var(--c-slate);
}

.page-contact .breadcrumb li {
  display: flex;
  align-items: center;
  gap: 8px;
}

.page-contact .breadcrumb li + li::before {
  content: "/";
  color: var(--c-slate);
}

.page-contact .breadcrumb a {
  color: var(--c-fog);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-contact .breadcrumb a:hover,
.page-contact .breadcrumb a:focus-visible {
  color: var(--c-cyan);
  border-bottom-color: var(--c-cyan);
}

.page-contact .eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 18px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--c-cyan);
}

.page-contact .eyebrow::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--c-cyan);
  box-shadow: 0 0 0 4px rgba(53, 242, 208, 0.16);
}

.page-contact h1 {
  margin: 0;
  max-width: 20ch;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(30px, 6.6vw, 62px);
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--c-fog);
}

.page-contact .hero-lede {
  max-width: 640px;
  margin: clamp(18px, 3vw, 26px) 0 0;
  font-size: clamp(15px, 2.2vw, 18px);
  line-height: 1.85;
  color: rgba(234, 242, 245, 0.82);
}

.page-contact .hero-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: clamp(22px, 4vw, 32px) 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .hero-chip {
  display: inline-flex;
  align-items: center;
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(53, 242, 208, 0.34);
  background: rgba(53, 242, 208, 0.08);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--c-cyan);
}

.page-contact .hero-chip--amber {
  border-color: rgba(255, 180, 90, 0.42);
  background: rgba(255, 180, 90, 0.1);
  color: var(--c-amber);
}

.page-contact .hero-chip--moss {
  border-color: rgba(111, 143, 106, 0.5);
  background: rgba(111, 143, 106, 0.14);
  color: #a8c2a2;
}

/* ---------- 联络台 ---------- */
.page-contact .desk-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 3.4vw, 32px);
  align-items: start;
}

.page-contact .coord-card {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--contact-hair);
  border-radius: var(--radius-l);
  padding: clamp(22px, 4vw, 38px);
  background: linear-gradient(158deg, #0B2C45 0%, #061B2B 72%);
  box-shadow: 0 26px 60px rgba(3, 18, 29, 0.55);
}

.page-contact .coord-card::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(94, 113, 128, 0.16) 1px, transparent 1px),
    linear-gradient(90deg, rgba(94, 113, 128, 0.16) 1px, transparent 1px);
  background-size: 44px 44px;
  -webkit-mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.85), transparent 88%);
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.85), transparent 88%);
}

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

.page-contact .coord-head {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(22px, 3.6vw, 30px);
  letter-spacing: -0.01em;
  color: var(--c-fog);
}

.page-contact .coord-sub {
  margin: 8px 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--c-slate);
}

.page-contact .coord-list {
  margin: clamp(20px, 3.4vw, 28px) 0 0;
}

.page-contact .coord-row {
  padding: 16px 0;
  border-top: 1px solid var(--contact-hair);
}

.page-contact .coord-label {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--c-slate);
}

.page-contact .coord-value {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(15px, 2.6vw, 19px);
  line-height: 1.6;
  color: var(--c-fog);
  word-break: break-word;
  -webkit-user-select: all;
  user-select: all;
}

.page-contact .coord-row:last-child .coord-value {
  font-size: clamp(14px, 2.3vw, 17px);
}

.page-contact .coord-hint {
  margin: 18px 0 0;
  font-size: 13px;
  line-height: 1.8;
  color: var(--c-slate);
}

.page-contact .desk-side {
  padding: clamp(4px, 1vw, 12px) 0 0;
}

.page-contact .side-title {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-size: clamp(20px, 3.4vw, 28px);
  letter-spacing: -0.01em;
  color: var(--c-fog);
}

.page-contact .side-text {
  margin: 0;
  font-size: 15px;
  line-height: 1.9;
  color: rgba(234, 242, 245, 0.78);
}

.page-contact .side-list {
  margin: clamp(18px, 3vw, 24px) 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 14px;
}

.page-contact .side-list li {
  position: relative;
  padding: 0 0 0 20px;
  font-size: 15px;
  line-height: 1.85;
  color: rgba(234, 242, 245, 0.76);
}

.page-contact .side-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 11px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--c-cyan);
  box-shadow: 0 0 0 3px rgba(53, 242, 208, 0.14);
}

.page-contact .side-list strong {
  color: var(--c-fog);
  font-weight: 600;
}

.page-contact .side-note {
  margin: clamp(18px, 3vw, 24px) 0 0;
  padding: 14px 16px;
  border-left: 2px solid var(--c-amber);
  border-radius: 0 var(--radius-s) var(--radius-s) 0;
  background: rgba(255, 180, 90, 0.07);
  font-size: 14px;
  line-height: 1.8;
  color: rgba(255, 180, 90, 0.92);
}

/* ---------- 反馈路线 ---------- */
.page-contact .route-section {
  background:
    linear-gradient(180deg, transparent, rgba(11, 44, 69, 0.5) 30%, rgba(11, 44, 69, 0.5) 70%, transparent);
  border-top: 1px solid rgba(94, 113, 128, 0.16);
  border-bottom: 1px solid rgba(94, 113, 128, 0.16);
}

.page-contact .route-head {
  max-width: 640px;
}

.page-contact .section-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(24px, 4.4vw, 40px);
  line-height: 1.18;
  letter-spacing: -0.018em;
  color: var(--c-fog);
}

.page-contact .lede {
  margin: 14px 0 0;
  font-size: 15px;
  line-height: 1.9;
  color: rgba(234, 242, 245, 0.76);
}

.page-contact .route-figure {
  margin: clamp(24px, 4vw, 38px) 0 clamp(24px, 4vw, 36px);
  border: 1px solid var(--contact-hair);
  border-radius: var(--radius-l);
  overflow: hidden;
  background: var(--c-abyss);
}

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

.page-contact .route-list {
  position: relative;
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 14px;
}

.page-contact .route-list::before {
  content: "";
  position: absolute;
  left: 21px;
  top: 30px;
  bottom: 30px;
  width: 2px;
  background: linear-gradient(180deg, var(--c-cyan), var(--c-amber));
  opacity: 0.55;
}

.page-contact .route-step {
  position: relative;
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  padding: clamp(16px, 3vw, 22px) clamp(16px, 3vw, 24px) clamp(16px, 3vw, 22px) clamp(10px, 2vw, 14px);
  border: 1px solid var(--contact-hair);
  border-radius: var(--radius-m);
  background: var(--contact-panel);
  transition: border-color 0.24s var(--ease), transform 0.24s var(--ease), background 0.24s var(--ease);
}

.page-contact .route-step:hover {
  border-color: rgba(53, 242, 208, 0.5);
  background: rgba(11, 44, 69, 0.82);
  transform: translateY(-2px);
}

.page-contact .step-index {
  position: relative;
  z-index: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  border: 1px solid var(--c-cyan);
  background: var(--c-sea-2);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--c-cyan);
}

.page-contact .route-step:last-child .step-index {
  border-color: var(--c-amber);
  color: var(--c-amber);
}

.page-contact .step-body h3 {
  margin: 2px 0 8px;
  font-family: var(--font-display);
  font-size: clamp(17px, 2.8vw, 21px);
  letter-spacing: -0.01em;
  color: var(--c-fog);
}

.page-contact .step-body p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: rgba(234, 242, 245, 0.74);
}

.page-contact .step-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .step-tags li {
  padding: 4px 11px;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(94, 113, 128, 0.45);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.05em;
  color: var(--c-slate);
}

/* ---------- 受理范围 ---------- */
.page-contact .types-section .section-head {
  max-width: 620px;
}

.page-contact .problem-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(14px, 2.4vw, 20px);
  margin-top: clamp(24px, 4vw, 36px);
}

.page-contact .problem-card {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: clamp(20px, 3.4vw, 28px);
  border: 1px solid var(--contact-hair);
  border-radius: var(--radius-m);
  background: linear-gradient(170deg, rgba(11, 44, 69, 0.7), rgba(6, 27, 43, 0.9));
  transition: border-color 0.24s var(--ease), transform 0.24s var(--ease);
}

.page-contact .problem-card:hover {
  border-color: rgba(53, 242, 208, 0.42);
  transform: translateY(-3px);
}

.page-contact .pc-tag {
  align-self: flex-start;
  padding: 5px 12px;
  border-radius: var(--radius-pill);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
}

.page-contact .pc-tag--cyan {
  color: var(--c-cyan);
  background: rgba(53, 242, 208, 0.1);
  border: 1px solid rgba(53, 242, 208, 0.34);
}

.page-contact .pc-tag--amber {
  color: var(--c-amber);
  background: rgba(255, 180, 90, 0.1);
  border: 1px solid rgba(255, 180, 90, 0.36);
}

.page-contact .pc-tag--moss {
  color: #a8c2a2;
  background: rgba(111, 143, 106, 0.16);
  border: 1px solid rgba(111, 143, 106, 0.5);
}

.page-contact .pc-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(18px, 2.9vw, 22px);
  line-height: 1.35;
  letter-spacing: -0.01em;
  color: var(--c-fog);
}

.page-contact .pc-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 9px;
}

.page-contact .pc-list li {
  position: relative;
  padding-left: 16px;
  font-size: 14.5px;
  line-height: 1.8;
  color: rgba(234, 242, 245, 0.74);
}

.page-contact .pc-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 6px;
  height: 1px;
  background: var(--c-slate);
}

.page-contact .pc-foot {
  margin: auto 0 0;
  padding-top: 12px;
  border-top: 1px solid rgba(94, 113, 128, 0.24);
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.7;
  color: var(--c-slate);
}

.page-contact .types-note {
  margin: clamp(20px, 3.4vw, 28px) 0 0;
  padding: 14px 18px;
  border-radius: var(--radius-s);
  border-left: 2px solid var(--c-clay);
  background: rgba(183, 110, 78, 0.1);
  font-size: 14px;
  line-height: 1.8;
  color: rgba(234, 242, 245, 0.78);
}

/* ---------- 来信与来访 ---------- */
.page-contact .mail-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 3.4vw, 32px);
  align-items: start;
}

.page-contact .mail-card {
  border-radius: var(--radius-l);
  padding: clamp(22px, 4vw, 38px);
  background: var(--c-cream);
  color: var(--c-abyss);
}

.page-contact .mail-eyebrow {
  margin: 0 0 10px;
  font-size: 11px;
  letter-spacing: 0.22em;
  color: var(--c-clay);
}

.page-contact .mail-title {
  margin: 0 0 18px;
  font-family: var(--font-display);
  font-size: clamp(22px, 3.6vw, 30px);
  letter-spacing: -0.01em;
  color: var(--c-abyss);
}

.page-contact .mail-addr {
  margin: 0;
  padding-bottom: 16px;
  border-bottom: 1px solid rgba(3, 18, 29, 0.16);
  font-size: clamp(15px, 2.5vw, 18px);
  line-height: 1.8;
  color: #03121D;
}

.page-contact .mail-note {
  margin: 16px 0 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: rgba(3, 18, 29, 0.78);
}

.page-contact .mail-side h3 {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-size: clamp(18px, 3vw, 22px);
  letter-spacing: -0.01em;
  color: var(--c-fog);
}

.page-contact .mail-text {
  margin: clamp(16px, 3vw, 22px) 0 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: rgba(234, 242, 245, 0.76);
}

.page-contact .mail-links {
  margin: 14px 0 0;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--c-slate);
}

.page-contact .mail-links a {
  color: var(--c-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 242, 208, 0.45);
}

.page-contact .mail-links a:hover,
.page-contact .mail-links a:focus-visible {
  border-bottom-color: var(--c-cyan);
}

/* ---------- 快捷索引 ---------- */
.page-contact .quick-section {
  padding-bottom: clamp(56px, 9vw, 100px);
}

.page-contact .quick-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin-top: clamp(20px, 3.4vw, 28px);
}

.page-contact .quick-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 18px;
  border: 1px solid var(--contact-hair);
  border-radius: var(--radius-m);
  background: rgba(11, 44, 69, 0.42);
  color: var(--c-fog);
  text-decoration: none;
  transition: border-color 0.22s var(--ease), transform 0.22s var(--ease), background 0.22s var(--ease);
}

.page-contact .quick-link:hover,
.page-contact .quick-link:focus-visible {
  border-color: var(--c-cyan);
  background: rgba(11, 44, 69, 0.72);
  transform: translateY(-2px);
}

.page-contact .quick-index {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--c-cyan);
}

.page-contact .quick-label {
  font-size: 14.5px;
  line-height: 1.5;
}

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

@media (min-width: 900px) {
  .page-contact .desk-grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
    gap: clamp(28px, 3.6vw, 48px);
  }

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

  .page-contact .mail-grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
    gap: clamp(28px, 3.6vw, 44px);
  }

  .page-contact .route-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: clamp(16px, 2.2vw, 24px);
  }

  .page-contact .route-list::before {
    display: none;
  }

  .page-contact .route-step {
    display: block;
    padding: clamp(20px, 2.4vw, 28px);
  }

  .page-contact .step-index {
    margin-bottom: 16px;
  }
}

@media (min-width: 1000px) {
  .page-contact .quick-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact *,
  .page-contact *::before,
  .page-contact *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }

  .page-contact .route-step:hover,
  .page-contact .problem-card:hover,
  .page-contact .quick-link:hover {
    transform: none;
  }
}