.page-faq {
  padding-bottom: 8px;
}

.page-faq .breadcrumb {
  margin-top: 18px;
}

/* ---------- 首屏：非对称分栏 ---------- */
.page-faq .faq-hero {
  display: grid;
  gap: 26px;
  padding: 26px 0 36px;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-hero__copy {
  min-width: 0;
}

.page-faq .faq-hero h1 {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(30px, 6.2vw, 54px);
  line-height: 1.08;
  letter-spacing: -0.015em;
  color: var(--text);
}

.page-faq .faq-hero__lede {
  margin: 16px 0 0;
  max-width: 62ch;
  font-size: 16px;
  line-height: 1.8;
  color: var(--muted);
}

.page-faq .faq-hero__media {
  margin: 0;
  position: relative;
  border: 1px solid var(--line);
  clip-path: polygon(0 0, calc(100% - 18px) 0, 100% 18px, 100% 100%, 18px 100%, 0 calc(100% - 18px));
}

.page-faq .faq-hero__media img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
  aspect-ratio: 2 / 1;
}

.page-faq .faq-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 22px;
}

.page-faq .faq-chips a {
  display: inline-flex;
  align-items: center;
  padding: 9px 14px;
  font-size: 14px;
  line-height: 1.2;
  color: var(--text);
  text-decoration: none;
  background: var(--ink-2);
  border: 1px solid var(--line);
  clip-path: polygon(0 0, calc(100% - 9px) 0, 100% 9px, 100% 100%, 9px 100%, 0 calc(100% - 9px));
  transition: color var(--ease), background var(--ease), border-color var(--ease);
}

.page-faq .faq-chips a:hover,
.page-faq .faq-chips a:focus-visible {
  color: var(--ink);
  background: var(--cyan);
  border-color: var(--cyan);
}

/* ---------- 主体布局 ---------- */
.page-faq .faq-layout {
  display: grid;
  gap: 28px;
  padding: 30px 0 56px;
}

/* ---------- 左侧分类导航 ---------- */
.page-faq .faq-aside__title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-faq .faq-nav {
  display: grid;
  gap: 2px;
}

.page-faq .faq-nav a {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 11px 12px;
  font-size: 15px;
  line-height: 1.4;
  color: var(--muted);
  text-decoration: none;
  border-left: 2px solid var(--line);
  transition: color var(--ease), background var(--ease), border-color var(--ease);
}

.page-faq .faq-nav a span {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--line);
  transition: color var(--ease);
}

.page-faq .faq-nav a:hover,
.page-faq .faq-nav a:focus-visible {
  color: var(--text);
  background: var(--ink-2);
  border-left-color: var(--cyan);
}

.page-faq .faq-nav a:hover span,
.page-faq .faq-nav a:focus-visible span {
  color: var(--cyan);
}

.page-faq .faq-aside__note {
  margin-top: 18px;
  padding: 14px 16px;
  background: var(--ink-2);
  border-left: 3px solid var(--amber);
}

.page-faq .faq-aside__note p {
  margin: 0;
  font-size: 13px;
  line-height: 1.75;
  color: var(--muted);
}

/* ---------- 分类区块 ---------- */
.page-faq .faq-main {
  min-width: 0;
}

.page-faq .faq-block {
  padding-bottom: 30px;
  margin-bottom: 30px;
  border-bottom: 1px solid var(--line);
  scroll-margin-top: 88px;
}

.page-faq .faq-block:last-child {
  border-bottom: 0;
  margin-bottom: 0;
  padding-bottom: 0;
}

.page-faq .faq-block__head {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding-left: 14px;
  border-left: 4px solid var(--cyan);
}

.page-faq .faq-no {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--cyan);
}

.page-faq .faq-block h2 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(23px, 4vw, 34px);
  line-height: 1.15;
  letter-spacing: -0.01em;
  color: var(--text);
}

.page-faq .faq-block__lede {
  margin: 12px 0 20px;
  max-width: 66ch;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--muted);
}

/* ---------- 示意图 ---------- */
.page-faq .faq-figure {
  margin: 0 0 22px;
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border: 1px solid var(--line);
}

.page-faq .faq-figure figcaption {
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 手风琴 ---------- */
.page-faq .faq-item {
  margin-bottom: 10px;
  background: var(--ink-2);
  border: 1px solid var(--line);
  clip-path: polygon(0 0, calc(100% - 12px) 0, 100% 12px, 100% 100%, 12px 100%, 0 calc(100% - 12px));
  transition: background var(--ease), border-color var(--ease);
}

.page-faq .faq-item[open] {
  background: var(--panel);
  border-color: var(--line);
}

.page-faq .faq-item > summary {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 15px 18px;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.55;
  color: var(--text);
  cursor: pointer;
  list-style: none;
}

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

.page-faq .faq-item > summary::before {
  content: "+";
  flex: none;
  width: 14px;
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1.25;
  color: var(--cyan);
}

.page-faq .faq-item[open] > summary::before {
  content: "−";
  color: var(--amber);
}

.page-faq .faq-item > summary:hover {
  color: var(--cyan);
}

.page-faq .faq-answer {
  padding: 0 18px 18px 44px;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--text);
  opacity: 0.9;
}

.page-faq .faq-answer p {
  margin: 0 0 10px;
}

.page-faq .faq-answer p:last-child {
  margin-bottom: 0;
}

.page-faq .faq-answer a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  transition: border-color var(--ease);
}

.page-faq .faq-answer a:hover,
.page-faq .faq-answer a:focus-visible {
  border-bottom-color: var(--cyan);
}

/* ---------- 步骤编号 ---------- */
.page-faq .faq-steps {
  list-style: none;
  margin: 0 0 12px;
  padding: 0;
  display: grid;
  gap: 9px;
}

.page-faq .faq-steps li {
  display: grid;
  grid-template-columns: 26px minmax(0, 1fr);
  gap: 10px;
  align-items: start;
  font-size: 15px;
  line-height: 1.75;
}

.page-faq .faq-step-no {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  margin-top: 3px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--ink);
  background: var(--amber);
  clip-path: polygon(0 0, calc(100% - 6px) 0, 100% 6px, 100% 100%, 6px 100%, 0 calc(100% - 6px));
}

.page-faq .faq-steps li:nth-child(even) .faq-step-no {
  background: var(--cyan);
}

/* ---------- 联系卡片 ---------- */
.page-faq .support-card {
  margin-bottom: 22px;
  padding: 22px;
  background: linear-gradient(160deg, var(--panel) 0%, var(--ink-2) 100%);
  border: 1px solid var(--line);
  clip-path: polygon(0 0, calc(100% - 20px) 0, 100% 20px, 100% 100%, 20px 100%, 0 calc(100% - 20px));
}

.page-faq .support-grid {
  display: grid;
  gap: 16px;
}

.page-faq .support-item {
  display: grid;
  gap: 4px;
  padding-left: 12px;
  border-left: 2px solid var(--line);
}

.page-faq .support-label {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-faq .support-value {
  font-size: 15.5px;
  line-height: 1.65;
  color: var(--text);
  word-break: break-word;
}

.page-faq .support-note {
  margin: 20px 0 0;
  padding-top: 14px;
  border-top: 1px dashed var(--line);
  font-size: 13px;
  line-height: 1.75;
  color: var(--muted);
}

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

/* ---------- 桌面 ---------- */
@media (min-width: 900px) {
  .page-faq .faq-hero {
    grid-template-columns: minmax(0, 1.18fr) minmax(0, 0.82fr);
    align-items: end;
    gap: 44px;
    padding: 38px 0 48px;
  }

  .page-faq .faq-hero__media img {
    aspect-ratio: 3 / 2;
  }

  .page-faq .faq-layout {
    grid-template-columns: 234px minmax(0, 1fr);
    gap: 52px;
    padding: 40px 0 72px;
  }

  .page-faq .faq-aside__inner {
    position: sticky;
    top: 88px;
  }

  .page-faq .faq-block {
    padding-bottom: 38px;
    margin-bottom: 38px;
  }

  .page-faq .faq-item > summary {
    padding: 17px 22px;
  }

  .page-faq .faq-answer {
    padding: 0 22px 20px 48px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-chips a,
  .page-faq .faq-nav a,
  .page-faq .faq-item,
  .page-faq .faq-answer a {
    transition: none;
  }
}