.page-contact {
  background: var(--canvas);
  color: var(--paper);
  padding-bottom: clamp(48px, 8vw, 96px);
}

.page-contact .wrap {
  width: min(var(--wrap), calc(100% - var(--gutter) * 2));
  margin-inline: auto;
}

.page-contact .breadcrumb {
  margin-bottom: 18px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--mist);
}

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

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

.page-contact .breadcrumb__list li:not(:last-child)::after {
  content: "/";
  color: var(--line-strong);
}

.page-contact .breadcrumb__list a {
  color: var(--cyan);
  text-decoration: none;
}

.page-contact .breadcrumb__list a:hover,
.page-contact .breadcrumb__list a:focus-visible {
  text-decoration: underline;
}

.contact-hero {
  padding-top: clamp(24px, 4vw, 46px);
}

.page-contact .contact-hero h1 {
  margin: 0 0 18px;
  max-width: 20ch;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(36px, 8vw, 68px);
  line-height: 0.98;
  letter-spacing: -0.015em;
  color: var(--paper);
}

.contact-hero .lede {
  margin: 0;
  max-width: 56ch;
  font-size: clamp(15px, 1.8vw, 17px);
  line-height: 1.75;
  color: var(--mist);
}

/* —— 联络卡 + 侧栏 —— */
.contact-stage {
  margin-top: clamp(26px, 4vw, 46px);
}

.contact-stage__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.contact-card {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: clamp(20px, 4vw, 38px);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-lg);
  background: linear-gradient(155deg, var(--canvas-3) 0%, var(--canvas-2) 55%, var(--canvas) 100%);
}

.contact-card__veil {
  position: absolute;
  inset: 0;
  z-index: -1;
}

.contact-card__veil img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.32;
}

.contact-card__veil::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(7, 20, 38, 0.5), rgba(7, 20, 38, 0.92) 72%);
}

.contact-card__title {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-size: clamp(22px, 3vw, 30px);
  letter-spacing: -0.01em;
  color: var(--paper);
}

.status-wrap {
  position: relative;
  display: inline-block;
  margin-bottom: 22px;
}

.contact-status {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 7px 15px;
  border: 1px solid rgba(70, 214, 168, 0.42);
  border-radius: var(--pill);
  background: rgba(70, 214, 168, 0.1);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.02em;
  color: var(--green);
  outline: none;
  cursor: default;
}

.contact-status:focus-visible {
  box-shadow: 0 0 0 3px rgba(61, 224, 232, 0.55);
}

.contact-status__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 0 4px rgba(70, 214, 168, 0.16);
  animation: contact-pulse 2.8s ease-in-out infinite;
}

.contact-status__tip {
  position: absolute;
  left: 0;
  top: calc(100% + 10px);
  z-index: 5;
  min-width: 210px;
  max-width: 78vw;
  padding: 9px 12px;
  border: 1px solid var(--line-paper);
  border-radius: var(--radius-sm);
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 12.5px;
  line-height: 1.5;
  letter-spacing: 0;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-4px);
  transition: opacity 0.18s ease, transform 0.18s ease, visibility 0.18s;
}

.contact-status:hover .contact-status__tip,
.contact-status:focus-visible .contact-status__tip {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

@keyframes contact-pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.45; transform: scale(0.82); }
}

.contact-list {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.contact-row {
  display: grid;
  gap: 5px;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: rgba(244, 234, 215, 0.055);
}

.contact-row__label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--cyan);
}

.contact-row__value {
  font-size: clamp(15px, 2vw, 19px);
  font-weight: 600;
  line-height: 1.4;
  color: var(--paper);
  word-break: break-word;
}

.contact-row__value--mail {
  font-family: var(--font-mono);
  font-size: clamp(14px, 1.9vw, 17px);
  color: var(--orange);
}

.contact-row__note {
  font-size: 13px;
  line-height: 1.65;
  color: var(--mist);
}

.contact-side {
  display: grid;
  gap: 14px;
}

.side-card {
  padding: clamp(20px, 3vw, 28px);
  border-radius: var(--radius-lg);
  background: var(--paper);
  color: var(--ink);
  box-shadow: 0 18px 42px -30px rgba(0, 0, 0, 0.95);
}

.side-card__eyebrow {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

.side-card__title {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-size: clamp(20px, 2.6vw, 24px);
  line-height: 1.15;
  color: var(--ink);
}

.side-links {
  display: grid;
  gap: 2px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.side-links a {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: baseline;
  gap: 6px 10px;
  padding: 11px 4px;
  border-bottom: 1px solid var(--line-paper);
  font-size: 14.5px;
  font-weight: 600;
  color: var(--ink);
  text-decoration: none;
  transition: color 0.16s ease;
}

.side-links li:last-child a {
  border-bottom: 0;
}

.side-links a:hover,
.side-links a:focus-visible {
  color: var(--nebula);
}

.side-links__meta {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 400;
  color: var(--ink-soft);
}

.side-note {
  padding: 16px 18px;
  border: 1px dashed var(--line-strong);
  border-radius: var(--radius-md);
}

.side-note p {
  margin: 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--mist);
}

/* —— 通用分区标题 —— */
.section-head {
  display: grid;
  gap: 8px;
  margin-bottom: 20px;
}

.section-head h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(26px, 4.4vw, 42px);
  line-height: 1.05;
  letter-spacing: -0.015em;
  color: var(--paper);
}

.section-head__note {
  margin: 0;
  max-width: 60ch;
  font-size: 14px;
  line-height: 1.7;
  color: var(--mist);
}

/* —— 支持范围 —— */
.section-support,
.section-check,
.section-fix,
.section-region {
  margin-top: clamp(40px, 7vw, 78px);
}

.support-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.support-card {
  position: relative;
  display: grid;
  gap: 8px;
  align-content: start;
  padding: 24px 20px 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--canvas-2);
}

.support-card::before {
  content: "";
  position: absolute;
  left: 20px;
  top: 0;
  width: 44px;
  height: 3px;
  border-radius: 0 0 3px 3px;
  background: var(--orange);
}

.support-card__no {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--orange);
  padding-top: 6px;
}

.support-card h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 22px;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.support-card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--mist);
}

.support-card__via {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: var(--cyan);
}

/* —— 反馈清单 —— */
.check-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.check-card {
  padding: clamp(18px, 3vw, 28px);
  border-radius: var(--radius-lg);
  background: var(--paper);
  color: var(--ink);
}

.check-list {
  display: grid;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.check-item {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 12px 14px;
  border: 1px solid var(--line-paper);
  border-radius: var(--radius-sm);
  background: rgba(234, 223, 200, 0.55);
  font-size: 14px;
  line-height: 1.6;
  color: var(--ink);
  cursor: pointer;
  transition: background 0.16s ease, border-color 0.16s ease;
}

.check-item:hover {
  background: var(--paper-2);
}

.check-item:focus-within {
  border-color: var(--nebula);
  box-shadow: 0 0 0 3px rgba(108, 75, 214, 0.18);
}

.check-item input {
  flex: none;
  width: 18px;
  height: 18px;
  margin-top: 2px;
  accent-color: var(--nebula);
  cursor: pointer;
}

.check-item input:checked ~ span {
  color: var(--ink-soft);
  text-decoration: line-through;
  text-decoration-thickness: 1px;
}

.check-figure {
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--canvas-2);
}

.check-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 5 / 3;
  object-fit: cover;
}

.check-figure figcaption {
  padding: 12px 16px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--mist);
}

/* —— 纠错与合作 —— */
.fix-card {
  padding: clamp(22px, 3.6vw, 36px);
  border-radius: var(--radius-lg);
  background: var(--paper);
  color: var(--ink);
}

.fix-card h2 {
  margin: 10px 0 20px;
  font-family: var(--font-display);
  font-size: clamp(24px, 3.6vw, 34px);
  line-height: 1.1;
  color: var(--ink);
}

.fix-cols {
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px;
}

.fix-cols h3 {
  margin: 0 0 8px;
  padding-left: 10px;
  border-left: 3px solid var(--nebula);
  font-family: var(--font-display);
  font-size: 20px;
  line-height: 1.2;
  color: var(--ink);
}

.fix-cols p {
  margin: 0 0 10px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink-soft);
}

.fix-cols ul {
  margin: 0;
  padding-left: 18px;
  font-size: 14px;
  line-height: 1.85;
  color: var(--ink-soft);
}

/* —— 服务地区与备案 —— */
.region-band {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  padding: clamp(22px, 4vw, 38px);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-lg);
  background:
    radial-gradient(120% 140% at 8% 0%, rgba(108, 75, 214, 0.3), transparent 62%),
    var(--canvas-2);
}

.region-band h2 {
  margin: 6px 0 10px;
  font-family: var(--font-display);
  font-size: clamp(26px, 4vw, 40px);
  line-height: 1.05;
  color: var(--paper);
}

.region-band p {
  margin: 0;
  max-width: 52ch;
  font-size: 14px;
  line-height: 1.75;
  color: var(--mist);
}

.region-meta {
  display: grid;
  gap: 6px;
  align-content: center;
  padding: 18px;
  border: 1px dashed var(--line-strong);
  border-radius: var(--radius-md);
  background: rgba(7, 20, 38, 0.5);
}

.region-meta__label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--cyan);
}

.region-meta__value {
  font-family: var(--font-mono);
  font-size: clamp(14px, 2vw, 18px);
  letter-spacing: 0.02em;
  color: var(--orange);
  word-break: break-all;
}

/* —— 断点 —— */
@media (min-width: 780px) {
  .fix-cols {
    grid-template-columns: 1fr 1fr;
    gap: 30px;
  }

  .region-band {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.75fr);
    align-items: center;
  }
}

@media (min-width: 820px) {
  .support-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
  }
}

@media (min-width: 900px) {
  .check-grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    gap: 22px;
    align-items: start;
  }
}

@media (min-width: 940px) {
  .contact-stage__grid {
    grid-template-columns: minmax(0, 1.42fr) minmax(0, 0.85fr);
    gap: 22px;
    align-items: start;
  }

  .contact-side {
    position: sticky;
    top: 96px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .contact-status__dot {
    animation: none;
  }

  .page-contact .contact-status__tip,
  .page-contact .side-links a,
  .page-contact .check-item {
    transition: none;
  }
}