.page-faq {
  --faq-aside-w: 320px;
  overflow-wrap: anywhere;
}

.page-faq [id^="faq-"] {
  scroll-margin-top: 108px;
}

.page-faq .eyebrow {
  color: var(--cyan);
}

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

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  padding: clamp(20px, 4vw, 40px) 0 clamp(24px, 4vw, 44px);
}

.page-faq .faq-hero__title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2.2rem, 7.4vw, 4.4rem);
  line-height: 1.04;
  letter-spacing: -0.02em;
  color: var(--white);
  margin: 14px 0 18px;
  max-width: 15ch;
}

.page-faq .faq-hero__lede {
  font-family: var(--font-body);
  font-size: clamp(1rem, 2.2vw, 1.125rem);
  line-height: 1.8;
  color: var(--paper);
  max-width: 62ch;
  margin: 0;
}

/* ---------- 主题索引 ---------- */

.page-faq .faq-index {
  padding-bottom: clamp(28px, 5vw, 52px);
}

.page-faq .faq-index__grid {
  display: grid;
  gap: clamp(20px, 3vw, 32px);
  grid-template-columns: 1fr;
}

.page-faq .faq-index__media img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--ink-700);
  border-radius: var(--radius-md);
  object-fit: cover;
}

.page-faq .faq-index__label {
  font-family: var(--font-label);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--paper-dim);
  margin: 0 0 12px;
}

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

.page-faq .faq-index__list a {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 13px 16px;
  border: 1px solid var(--ink-700);
  border-radius: var(--radius-sm);
  background: var(--ink-800);
  color: var(--paper);
  text-decoration: none;
  font-size: 16px;
  transition: border-color 0.25s var(--ease), transform 0.25s var(--ease), color 0.25s var(--ease);
}

.page-faq .faq-index__num {
  font-family: var(--font-label);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--cyan);
}

.page-faq .faq-index__list a:hover {
  border-color: var(--cyan);
  color: var(--white);
  transform: translateY(-2px);
}

/* ---------- 主体骨架 ---------- */

.page-faq .faq-body {
  padding-bottom: clamp(24px, 4vw, 40px);
}

.page-faq .faq-body__grid {
  display: grid;
  gap: clamp(28px, 4vw, 48px);
  grid-template-columns: 1fr;
}

/* ---------- 问答分组 ---------- */

.page-faq .faq-group {
  padding-left: clamp(14px, 2.2vw, 22px);
  border-left: 2px solid var(--ga, var(--cyan));
  margin-bottom: clamp(34px, 6vw, 60px);
}

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

.page-faq .faq-group:nth-child(1) { --ga: var(--coral); }
.page-faq .faq-group:nth-child(2) { --ga: var(--violet); }
.page-faq .faq-group:nth-child(3) { --ga: var(--mint); }
.page-faq .faq-group:nth-child(4) { --ga: var(--gold); }
.page-faq .faq-group:nth-child(5) { --ga: var(--cyan); }
.page-faq .faq-group:nth-child(6) { --ga: var(--coral); }

.page-faq .faq-group__num {
  display: block;
  font-family: var(--font-label);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--ga, var(--cyan));
  margin-bottom: 8px;
}

.page-faq .faq-group__title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.4rem, 3.2vw, 1.95rem);
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--white);
  margin: 0 0 10px;
}

.page-faq .faq-group__note {
  font-size: 15px;
  line-height: 1.75;
  color: var(--paper-dim);
  margin: 0 0 20px;
  max-width: 64ch;
}

/* ---------- 折叠问答 ---------- */

.page-faq .qa {
  border: 1px solid var(--ink-700);
  border-radius: var(--radius-sm);
  background: var(--ink-800);
  margin-bottom: 10px;
  transition: border-color 0.25s var(--ease), box-shadow 0.25s var(--ease);
}

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

.page-faq .qa[open] {
  border-color: var(--ga, var(--cyan));
  box-shadow: var(--shadow-card);
}

.page-faq .qa__q {
  list-style: none;
  cursor: pointer;
  position: relative;
  padding: 15px 46px 15px 16px;
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 16.5px;
  line-height: 1.55;
  color: var(--paper);
  transition: color 0.2s var(--ease);
}

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

.page-faq .qa__q::marker {
  content: "";
}

.page-faq .qa__q:hover {
  color: var(--white);
}

.page-faq .qa__q::after {
  content: "";
  position: absolute;
  right: 16px;
  top: 50%;
  width: 14px;
  height: 14px;
  margin-top: -7px;
  color: var(--ga, var(--cyan));
  background-image:
    linear-gradient(currentColor, currentColor),
    linear-gradient(currentColor, currentColor);
  background-size: 14px 2px, 2px 14px;
  background-position: center center;
  background-repeat: no-repeat;
  transition: transform 0.3s var(--ease);
}

.page-faq .qa[open] .qa__q::after {
  transform: rotate(45deg);
}

.page-faq .qa__a {
  padding: 14px 16px 18px;
  border-top: 1px dashed var(--ink-700);
  font-size: 16px;
  line-height: 1.78;
  color: var(--paper-dim);
}

.page-faq .qa__a > * {
  margin: 0;
}

.page-faq .qa__a > * + * {
  margin-top: 10px;
}

.page-faq .qa__a a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .qa__a a:hover {
  color: var(--gold);
}

.page-faq .qa__steps {
  list-style: none;
  padding: 0;
  display: grid;
  gap: 7px;
}

.page-faq .qa__steps li {
  position: relative;
  padding-left: 18px;
  color: var(--paper);
  font-size: 15.5px;
  line-height: 1.7;
}

.page-faq .qa__steps li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 0.7em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--ga, var(--cyan));
}

.page-faq .faq-group__figure {
  margin: 22px 0 0;
}

.page-faq .faq-group__figure img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--ink-700);
  border-radius: var(--radius-md);
  object-fit: cover;
}

.page-faq .faq-group__figure figcaption {
  margin-top: 8px;
  font-family: var(--font-label);
  font-size: 12px;
  letter-spacing: 0.06em;
  line-height: 1.7;
  color: var(--paper-dim);
}

/* ---------- 侧栏 ---------- */

.page-faq .faq-aside {
  display: grid;
  gap: 14px;
  align-content: start;
}

.page-faq .faq-help {
  border: 1px solid var(--ink-700);
  border-radius: var(--radius-lg);
  background:
    radial-gradient(120% 90% at 100% 0%, rgba(53, 231, 214, 0.16), rgba(53, 231, 214, 0) 62%),
    var(--ink-800);
  padding: clamp(18px, 2.4vw, 26px);
  box-shadow: var(--shadow-card);
}

.page-faq .faq-help__title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.35rem;
  line-height: 1.3;
  color: var(--white);
  margin: 8px 0 10px;
}

.page-faq .faq-help__text {
  font-size: 15px;
  line-height: 1.75;
  color: var(--paper-dim);
  margin: 0 0 16px;
}

.page-faq .faq-help__contact {
  margin: 0 0 18px;
  display: grid;
  gap: 10px;
}

.page-faq .faq-help__contact dt {
  font-family: var(--font-label);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--paper-dim);
  margin-bottom: 3px;
}

.page-faq .faq-help__contact dd {
  margin: 0;
  font-family: var(--font-label);
  font-size: 13.5px;
  color: var(--paper);
}

.page-faq .faq-mini {
  border: 1px solid var(--ink-700);
  border-radius: var(--radius-md);
  background: var(--ink-800);
  padding: 8px;
  display: grid;
  gap: 6px;
}

.page-faq .faq-mini a {
  display: block;
  padding: 10px 12px;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  color: var(--paper);
  text-decoration: none;
  font-size: 14.5px;
  transition: border-color 0.2s var(--ease), color 0.2s var(--ease), background-color 0.2s var(--ease);
}

.page-faq .faq-mini a:hover {
  border-color: var(--cyan);
  color: var(--white);
  background: rgba(53, 231, 214, 0.08);
}

/* ---------- 底部快捷路径 ---------- */

.page-faq .faq-shortcut {
  margin-top: clamp(32px, 5vw, 56px);
  padding-top: clamp(22px, 3vw, 34px);
  border-top: 1px dashed var(--ink-700);
}

.page-faq .faq-shortcut__grid {
  display: grid;
  gap: 14px;
  grid-template-columns: 1fr;
  margin-top: 16px;
}

.page-faq .faq-shortcut__card {
  display: block;
  padding: clamp(18px, 2.4vw, 26px);
  border: 1px solid var(--ink-700);
  border-radius: var(--radius-lg);
  background: var(--ink-800);
  color: var(--paper);
  text-decoration: none;
  transition: border-color 0.25s var(--ease), transform 0.25s var(--ease), box-shadow 0.25s var(--ease);
}

.page-faq .faq-shortcut__card:hover {
  border-color: var(--cyan);
  transform: translateY(-3px);
  box-shadow: var(--shadow-lift);
}

.page-faq .faq-shortcut__num {
  display: block;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2rem, 5vw, 2.8rem);
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--white);
}

.page-faq .faq-shortcut__label {
  display: block;
  margin-top: 8px;
  font-size: 15px;
  line-height: 1.65;
  color: var(--paper-dim);
}

.page-faq .faq-shortcut__go {
  display: inline-block;
  margin-top: 14px;
  font-family: var(--font-label);
  font-size: 12.5px;
  letter-spacing: 0.1em;
  color: var(--cyan);
}

/* ---------- 断点 ---------- */

@media (min-width: 720px) {
  .page-faq .faq-shortcut__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 860px) {
  .page-faq .faq-index__grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    align-items: center;
  }
}

@media (min-width: 1080px) {
  .page-faq .faq-body__grid {
    grid-template-columns: minmax(0, 1fr) var(--faq-aside-w);
    align-items: start;
  }

  .page-faq .faq-aside {
    position: sticky;
    top: 100px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .qa__q::after,
  .page-faq .qa,
  .page-faq .qa__q,
  .page-faq .faq-index__list a,
  .page-faq .faq-mini a,
  .page-faq .faq-shortcut__card {
    transition: none;
  }

  .page-faq .faq-index__list a:hover,
  .page-faq .faq-shortcut__card:hover {
    transform: none;
  }
}