.page-faq {
  background: var(--snow);
  color: var(--ink);
  font-family: var(--font-sans);
}

.page-faq *,
.page-faq *::before,
.page-faq *::after {
  box-sizing: border-box;
}

.page-faq a {
  color: inherit;
}

.page-faq :focus-visible {
  outline: 3px solid var(--maple);
  outline-offset: 3px;
}

.page-faq figure {
  margin: 0;
}

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

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: calc(var(--baseline) * 2) 0 calc(var(--baseline) * 2.4);
  border-bottom: var(--border-hard);
  background-color: var(--snow);
  background-image:
    repeating-linear-gradient(90deg, rgba(31, 59, 50, 0.08) 0 1px, transparent 1px 56px),
    linear-gradient(158deg, var(--ice-soft) 0%, var(--snow) 62%);
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  right: -70px;
  top: -80px;
  width: 230px;
  height: 230px;
  border: 2px solid rgba(200, 16, 46, 0.26);
  border-radius: 50%;
  pointer-events: none;
}

.page-faq .faq-hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: calc(var(--baseline) * 0.6);
}

.page-faq .faq-eyebrow {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--maple-dark);
}

.page-faq .faq-hero h1 {
  margin: 0.1em 0 0;
  font-family: var(--font-serif);
  font-weight: 800;
  font-size: clamp(30px, 7vw, 56px);
  line-height: 1.12;
  letter-spacing: -0.03em;
  max-width: 18ch;
}

.page-faq .faq-hero .lede {
  margin: 0;
  max-width: 62ch;
  font-size: clamp(16px, 2.2vw, 17px);
  line-height: 1.78;
  color: var(--ink);
}

.page-faq .faq-facts {
  list-style: none;
  margin: calc(var(--baseline) * 0.4) 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-faq .faq-facts li {
  border-top: 2px solid var(--pine);
  padding-top: 10px;
  font-size: 15px;
  line-height: 1.6;
}

.page-faq .faq-facts b {
  display: block;
  margin-bottom: 4px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ice);
}

/* ---------- 定位器 ---------- */
.page-faq .faq-locator {
  padding: calc(var(--baseline) * 2.4) 0 calc(var(--baseline) * 1.6);
}

.page-faq .locator-head {
  display: grid;
  gap: 8px;
  margin-bottom: calc(var(--baseline) * 1.2);
}

.page-faq .faq-h2 {
  margin: 0;
  font-family: var(--font-serif);
  font-weight: 800;
  font-size: clamp(24px, 4.4vw, 36px);
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.page-faq .locator-intro {
  margin: 0;
  max-width: 54ch;
  font-size: 16px;
  line-height: 1.7;
}

.page-faq .locator-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.page-faq .locator-card {
  display: grid;
  gap: 6px;
  padding: 16px 16px 18px;
  text-decoration: none;
  border: var(--border-hard);
  border-radius: var(--radius-panel);
  background: var(--paper);
  box-shadow: var(--shadow-soft);
  transition: transform 0.16s ease, box-shadow 0.16s ease, background-color 0.16s ease;
}

.page-faq .locator-card:hover {
  transform: translate(-2px, -2px);
  background: var(--snow);
  box-shadow: var(--shadow-hard);
}

.page-faq .locator-card:active {
  transform: translate(1px, 1px);
  box-shadow: 2px 2px 0 0 rgba(32, 36, 34, 0.18);
}

.page-faq .locator-num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--maple);
}

.page-faq .locator-title {
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 18px;
  letter-spacing: -0.01em;
}

.page-faq .locator-desc {
  font-size: 14px;
  line-height: 1.65;
  color: var(--pine);
}

.page-faq .faq-locator-figure {
  margin-top: calc(var(--baseline) * 1.2);
  border: var(--border-hard);
  border-radius: var(--radius-panel);
  overflow: hidden;
  background: var(--ice-soft);
  box-shadow: var(--shadow-soft);
}

.page-faq .faq-locator-figure img {
  width: 100%;
  aspect-ratio: 2 / 1;
}

.page-faq .media-frame-caption {
  padding: 10px 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.03em;
  line-height: 1.6;
  color: var(--pine);
  background: var(--snow);
  border-top: 2px solid var(--ink);
}

/* ---------- 分栏主体 ---------- */
.page-faq .faq-body {
  display: grid;
  gap: calc(var(--baseline) * 1.6);
  padding-bottom: calc(var(--baseline) * 3);
}

.page-faq .faq-toc {
  border: var(--border-hard);
  border-radius: var(--radius-panel);
  background: var(--paper);
  padding: 18px 16px;
  box-shadow: var(--shadow-soft);
}

.page-faq .faq-toc-title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--maple-dark);
}

.page-faq .faq-toc-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-faq .faq-toc-list li {
  border-top: 1px solid var(--fog);
}

.page-faq .faq-toc-list li:first-child {
  border-top: 0;
}

.page-faq .faq-toc-list a {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 10px 4px;
  text-decoration: none;
  font-weight: 600;
  font-size: 15px;
  transition: color 0.14s ease, padding-left 0.14s ease;
}

.page-faq .faq-toc-list a:hover {
  color: var(--maple-dark);
  padding-left: 8px;
}

.page-faq .toc-num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--ice);
}

.page-faq .faq-toc-help {
  margin-top: 18px;
  padding-top: 14px;
  border-top: 2px solid var(--pine);
}

.page-faq .toc-help-title {
  margin: 0 0 6px;
  font-weight: 700;
  font-size: 15px;
}

.page-faq .toc-help-text {
  margin: 0 0 10px;
  font-size: 14px;
  line-height: 1.65;
  color: var(--pine);
}

.page-faq .toc-help-link {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.04em;
  text-decoration: none;
  padding-bottom: 2px;
  border-bottom: 2px solid var(--maple);
}

.page-faq .faq-answers {
  display: grid;
  gap: calc(var(--baseline) * 1.8);
  min-width: 0;
}

/* ---------- 问题分组 ---------- */
.page-faq .faq-group {
  scroll-margin-top: 96px;
  min-width: 0;
}

.page-faq .faq-group-head {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding-bottom: 10px;
  margin-bottom: 14px;
  border-bottom: 2px solid var(--pine);
}

.page-faq .faq-group-num {
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: 0.12em;
  color: var(--maple);
}

.page-faq .faq-verdict {
  margin: 0 0 18px;
  padding: 14px 16px;
  border-left: 6px solid var(--maple);
  border-radius: 4px var(--radius-panel) var(--radius-panel) 4px;
  background: var(--ice-soft);
  font-size: 16px;
  line-height: 1.75;
}

.page-faq .faq-body-text {
  margin: 0 0 16px;
  font-size: 16px;
  line-height: 1.78;
  max-width: 64ch;
}

.page-faq .faq-steps {
  list-style: none;
  margin: 0 0 20px;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-faq .faq-steps li {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 12px 14px;
  border: 2px solid var(--pine);
  border-radius: 12px;
  background: var(--snow);
}

.page-faq .step-num {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--maple);
}

.page-faq .step-text {
  font-size: 15px;
  line-height: 1.68;
}

.page-faq .faq-steps-figure {
  margin-bottom: 20px;
  border: var(--border-hard);
  border-radius: var(--radius-panel);
  overflow: hidden;
  background: var(--ice-soft);
  box-shadow: var(--shadow-soft);
}

.page-faq .faq-steps-figure img {
  width: 100%;
  aspect-ratio: 10 / 7;
}

/* ---------- 折叠问答 ---------- */
.page-faq .faq-item {
  margin-bottom: 10px;
  border: var(--border-hard);
  border-radius: 12px;
  background: var(--snow);
  box-shadow: var(--shadow-soft);
  transition: box-shadow 0.16s ease, background-color 0.16s ease;
}

.page-faq .faq-item[open] {
  background: var(--paper);
  box-shadow: var(--shadow-hard);
}

.page-faq .faq-item summary {
  position: relative;
  display: flex;
  gap: 10px;
  align-items: baseline;
  padding: 14px 46px 14px 16px;
  cursor: pointer;
  font-weight: 700;
  font-size: 16px;
  line-height: 1.55;
  list-style: none;
}

.page-faq .faq-item summary::-webkit-details-marker {
  display: none;
}

.page-faq .faq-item summary::after {
  content: "+";
  position: absolute;
  right: 16px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  font-size: 20px;
  line-height: 1;
  color: var(--maple);
}

.page-faq .faq-item[open] summary::after {
  content: "−";
}

.page-faq .faq-q-num {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--ice);
}

.page-faq .faq-answer {
  padding: 0 16px 16px;
  border-top: 1px dashed var(--fog);
  margin-top: -2px;
  padding-top: 12px;
}

.page-faq .faq-answer p {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  max-width: 60ch;
}

.page-faq .faq-inline-link {
  margin: 14px 0 0;
  font-size: 15px;
  line-height: 1.7;
}

.page-faq .faq-inline-link a {
  font-weight: 700;
  text-decoration: none;
  border-bottom: 2px solid var(--maple);
}

.page-faq .faq-inline-link a:hover {
  color: var(--maple-dark);
}

/* ---------- 数据小条 ---------- */
.page-faq .faq-facts-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  margin-bottom: 18px;
}

.page-faq .fact-chip {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 12px 14px;
  border: 2px solid var(--ice);
  border-radius: var(--radius-pill);
  background: var(--ice-soft);
}

.page-faq .fact-chip-num {
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--pine);
}

.page-faq .fact-chip-label {
  font-size: 13px;
  line-height: 1.5;
  color: var(--pine);
}

/* ---------- 支持区 ---------- */
.page-faq .faq-support-panel {
  padding: clamp(20px, 4vw, 32px);
  border: var(--border-hard);
  border-radius: var(--radius-panel);
  background-color: var(--pine);
  background-image: repeating-linear-gradient(0deg, rgba(247, 243, 236, 0.09) 0 1px, transparent 1px 34px);
  color: var(--snow);
  box-shadow: var(--shadow-hard);
}

.page-faq .support-lines {
  display: grid;
  gap: 10px;
}

.page-faq .support-line {
  display: grid;
  gap: 2px;
  padding-bottom: 10px;
  border-bottom: 1px solid rgba(247, 243, 236, 0.22);
}

.page-faq .support-label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--amber);
}

.page-faq .support-value {
  font-size: 17px;
  font-weight: 600;
  line-height: 1.5;
  word-break: break-word;
}

.page-faq .support-note {
  margin: 16px 0 0;
  font-size: 14px;
  line-height: 1.75;
  max-width: 56ch;
  color: var(--ice-soft);
}

.page-faq .support-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-top: 18px;
}

.page-faq .faq-support-panel .copy-button {
  border: 2px solid var(--snow);
  border-radius: var(--radius-pill);
  background: var(--maple);
  color: var(--snow);
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 15px;
  padding: 10px 20px;
  cursor: pointer;
  box-shadow: 3px 3px 0 0 rgba(247, 243, 236, 0.35);
  transition: transform 0.14s ease, background-color 0.14s ease;
}

.page-faq .faq-support-panel .copy-button:hover {
  background: var(--maple-dark);
  transform: translate(-1px, -1px);
}

.page-faq .faq-support-panel .copy-button:active {
  transform: translate(1px, 1px);
  box-shadow: 1px 1px 0 0 rgba(247, 243, 236, 0.35);
}

.page-faq .faq-support-panel .copy-button[data-copied="true"] {
  background: var(--amber);
  color: var(--ink);
}

.page-faq .support-link {
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
  padding-bottom: 2px;
  border-bottom: 2px solid var(--amber);
}

.page-faq .support-link:hover {
  color: var(--ice-soft);
}

/* ---------- 响应式 ---------- */
@media (min-width: 620px) {
  .page-faq .faq-facts {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
  }

  .page-faq .locator-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
  }

  .page-faq .faq-facts-row {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 12px;
  }

  .page-faq .support-lines {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px 24px;
  }

  .page-faq .support-line {
    border-bottom: 0;
    border-left: 2px solid rgba(247, 243, 236, 0.3);
    padding: 0 0 0 12px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero {
    padding: calc(var(--baseline) * 2.6) 0 calc(var(--baseline) * 3);
  }

  .page-faq .locator-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-faq .faq-body {
    grid-template-columns: 264px minmax(0, 1fr);
    gap: calc(var(--baseline) * 2.2);
    align-items: start;
  }

  .page-faq .faq-toc {
    position: sticky;
    top: 96px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .locator-card,
  .page-faq .faq-item,
  .page-faq .faq-toc-list a,
  .page-faq .faq-support-panel .copy-button {
    transition: none;
  }

  .page-faq .locator-card:hover {
    transform: none;
  }
}