.page-faq {
  --fq-card: rgba(11, 37, 54, 0.62);
  --fq-panel: rgba(31, 169, 230, 0.09);
  --fq-shadow: 0 22px 44px -32px rgba(0, 0, 0, 0.95);
  display: block;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: clamp(26px, 5vw, 64px) 0 clamp(26px, 4vw, 52px);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: -32% -16% auto -16%;
  height: 440px;
  background:
    radial-gradient(55% 65% at 18% 20%, rgba(31, 169, 230, 0.22), transparent 70%),
    radial-gradient(45% 55% at 82% 0%, rgba(53, 240, 208, 0.13), transparent 72%);
  pointer-events: none;
  z-index: -1;
}

.page-faq .faq-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 44px);
}

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

.page-faq .faq-hero__title {
  margin: 14px 0 18px;
  font-size: clamp(31px, 5.6vw, 58px);
  line-height: 1.12;
  font-weight: 900;
  letter-spacing: -0.02em;
  color: var(--ink-strong);
}

.page-faq .faq-hero__lede {
  max-width: 62ch;
  margin: 0;
  font-size: clamp(15.5px, 1.4vw, 18px);
  line-height: 1.85;
  color: var(--mist);
}

.page-faq .faq-hero__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 34px;
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-hero__facts li {
  display: flex;
  align-items: baseline;
  gap: 8px;
  font-size: 14px;
  color: var(--mist);
}

.page-faq .faq-hero__fact-num {
  font-size: 24px;
  font-weight: 700;
  color: var(--cyan);
  line-height: 1;
}

.page-faq .faq-hero__aside {
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-width: 0;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius-l);
  background: linear-gradient(160deg, rgba(31, 169, 230, 0.14), rgba(6, 18, 31, 0.42) 72%);
  box-shadow: var(--fq-shadow);
}

.page-faq .faq-path {
  display: block;
  width: 100%;
  height: auto;
}

.page-faq .faq-path__dot {
  fill: var(--blue);
}

.page-faq .faq-path__dot:nth-of-type(2) {
  fill: var(--cyan);
}

.page-faq .faq-path__dot:nth-of-type(3) {
  fill: var(--blue);
}

.page-faq .faq-path__dot:nth-of-type(4) {
  fill: var(--coral);
}

.page-faq .faq-hero__hint {
  margin: 0;
  line-height: 1.75;
}

.page-faq .faq-hero__side {
  display: none;
}

/* ---------- 主体两栏 ---------- */
.page-faq .faq-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 44px);
  padding-bottom: clamp(48px, 8vw, 116px);
}

.page-faq .faq-flow {
  display: grid;
  gap: clamp(46px, 7vw, 92px);
  min-width: 0;
}

/* 左侧常驻分类 */
.page-faq .faq-side {
  min-width: 0;
}

.page-faq .faq-side__label {
  display: block;
  margin-bottom: 12px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.24em;
  color: var(--blue);
}

.page-faq .faq-side__list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0 0 6px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: none;
}

.page-faq .faq-side__list::-webkit-scrollbar {
  display: none;
}

.page-faq .faq-side__link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 15px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(11, 37, 54, 0.62);
  color: var(--mist);
  font-size: 14px;
  text-decoration: none;
  white-space: nowrap;
  transition: color 0.22s var(--ease), border-color 0.22s var(--ease), background 0.22s var(--ease);
}

.page-faq .faq-side__link:hover,
.page-faq .faq-side__link:focus-visible {
  color: var(--ink-strong);
  border-color: var(--cyan);
  background: rgba(53, 240, 208, 0.1);
}

.page-faq .faq-side__index {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--cyan);
}

/* ---------- 章节头 ---------- */
.page-faq .faq-sec {
  scroll-margin-top: 96px;
  min-width: 0;
}

.page-faq .faq-sec__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px 20px;
  align-items: start;
  margin-bottom: clamp(20px, 3vw, 32px);
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-sec__num {
  font-family: var(--mono);
  font-size: clamp(26px, 4vw, 42px);
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--blue);
}

.page-faq .faq-sec__title {
  margin: 0 0 8px;
  font-size: clamp(21px, 2.6vw, 30px);
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--ink-strong);
}

.page-faq .faq-sec__desc {
  max-width: 64ch;
  margin: 0;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--mist);
}

/* ---------- 导览 ---------- */
.page-faq .faq-tour {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3vw, 30px);
}

.page-faq .faq-map {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
}

.page-faq .faq-map__item {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  background: linear-gradient(155deg, rgba(31, 169, 230, 0.17), rgba(6, 18, 31, 0.56) 74%);
  text-decoration: none;
  transition: transform 0.24s var(--ease), border-color 0.24s var(--ease), box-shadow 0.24s var(--ease);
}

.page-faq .faq-map__item:nth-child(2n) {
  background: linear-gradient(155deg, rgba(53, 240, 208, 0.14), rgba(6, 18, 31, 0.56) 74%);
}

.page-faq .faq-map__item:hover,
.page-faq .faq-map__item:focus-visible {
  transform: translateY(-3px);
  border-color: var(--cyan);
  box-shadow: 0 24px 42px -32px rgba(53, 240, 208, 0.85);
}

.page-faq .faq-map__num {
  font-size: 13px;
  letter-spacing: 0.2em;
  color: var(--cyan);
}

.page-faq .faq-map__name {
  font-size: 18px;
  font-weight: 700;
  color: var(--ink-strong);
}

.page-faq .faq-map__desc {
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--mist);
}

/* ---------- 图片容器 ---------- */
.page-faq .faq-fig.media {
  position: relative;
  margin: 0;
  padding: 0;
  overflow: hidden;
  aspect-ratio: 3 / 2;
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  background: var(--deep-2);
}

.page-faq .faq-fig--wide.media {
  aspect-ratio: 16 / 10;
  margin-bottom: clamp(18px, 2.6vw, 28px);
}

.page-faq .faq-fig img {
  position: static;
  inset: auto;
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-faq .faq-fig .media__cap {
  position: absolute;
  left: 14px;
  bottom: 12px;
  margin: 0;
  padding: 6px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(6, 18, 31, 0.74);
  font-family: var(--mono);
  font-size: 12px;
  color: var(--mist);
  backdrop-filter: blur(6px);
}

/* ---------- 手风琴 ---------- */
.page-faq .faq-acc {
  display: grid;
  gap: 10px;
}

.page-faq .faq-acc + .faq-acc {
  margin-top: 0;
}

.page-faq .faq-acc .acc__item {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  background: var(--fq-card);
  transition: border-color 0.24s var(--ease);
}

.page-faq .faq-acc .acc__item:has(.acc__btn[aria-expanded="true"]) {
  border-color: rgba(53, 240, 208, 0.42);
}

.page-faq .faq-acc .acc__h {
  margin: 0;
}

.page-faq .faq-acc .acc__btn {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  width: 100%;
  margin: 0;
  padding: 17px 20px;
  border: 0;
  background: transparent;
  color: var(--ink-strong);
  font-family: inherit;
  font-size: clamp(15px, 1.4vw, 16.5px);
  font-weight: 700;
  line-height: 1.65;
  text-align: left;
  cursor: pointer;
  transition: color 0.2s var(--ease);
}

.page-faq .faq-acc .acc__btn:hover {
  color: var(--cyan);
}

.page-faq .faq-acc .acc__btn:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: -3px;
  border-radius: var(--radius-m);
}

.page-faq .faq-acc .acc__num {
  flex: 0 0 auto;
  padding-top: 3px;
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--blue);
}

.page-faq .faq-acc .acc__q {
  flex: 1 1 auto;
  min-width: 0;
}

.page-faq .faq-acc .acc__btn::after {
  content: "+";
  flex: 0 0 auto;
  margin-left: auto;
  font-family: var(--mono);
  font-size: 20px;
  line-height: 1.15;
  color: var(--cyan);
}

.page-faq .faq-acc .acc__btn[aria-expanded="true"]::after {
  content: "–";
}

.page-faq .faq-acc .acc__panel {
  padding: 15px 20px 19px;
  background: linear-gradient(180deg, rgba(31, 169, 230, 0.12), rgba(31, 169, 230, 0.04));
  border-top: 1px solid rgba(27, 58, 77, 0.75);
  font-size: 15.5px;
  line-height: 1.9;
  color: var(--mist);
}

.page-faq .faq-acc .acc__panel[hidden] {
  display: none;
}

.page-faq .faq-acc .acc__panel p {
  margin: 0;
}

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

.page-faq .faq-sub {
  margin: 30px 0 14px;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--ink-strong);
  scroll-margin-top: 96px;
}

.page-faq .faq-sub::before {
  content: "";
  display: inline-block;
  width: 18px;
  height: 2px;
  margin-right: 10px;
  vertical-align: middle;
  background: var(--cyan);
}

/* ---------- 反馈收束 ---------- */
.page-faq .faq-help {
  position: relative;
  overflow: hidden;
  padding: clamp(24px, 4vw, 42px);
  border: 1px solid rgba(255, 107, 74, 0.34);
  border-radius: var(--radius-l);
  background:
    radial-gradient(72% 92% at 92% 0%, rgba(255, 107, 74, 0.18), transparent 68%),
    linear-gradient(150deg, rgba(11, 37, 54, 0.86), rgba(6, 18, 31, 0.72));
  box-shadow: var(--fq-shadow);
}

.page-faq .faq-help__lead {
  max-width: 60ch;
  margin: 12px 0 0;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--mist);
}

.page-faq .faq-help__rows {
  display: grid;
  gap: 10px;
  margin: 22px 0 26px;
}

.page-faq .faq-help__row {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 4px 18px;
  padding-bottom: 10px;
  border-bottom: 1px dashed rgba(27, 58, 77, 0.95);
  font-size: 15px;
}

.page-faq .faq-help__key {
  flex: 0 0 auto;
  min-width: 76px;
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--coral);
}

.page-faq .faq-help__val {
  color: var(--ink-strong);
  word-break: break-word;
}

/* ---------- 宽屏布局 ---------- */
@media (min-width: 620px) {
  .page-faq .faq-map {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    align-items: end;
    gap: clamp(36px, 5vw, 64px);
  }

  .page-faq .faq-tour {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
    gap: clamp(24px, 3.4vw, 40px);
  }
}

@media (min-width: 1024px) {
  .page-faq .faq-body {
    grid-template-columns: 194px minmax(0, 1fr);
    gap: clamp(36px, 5vw, 78px);
    align-items: start;
  }

  .page-faq .faq-side {
    position: sticky;
    top: 44px;
  }

  .page-faq .faq-side__list {
    flex-direction: column;
    gap: 6px;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-faq .faq-side__link {
    padding: 10px 13px;
    border-radius: 10px;
    border-left: 3px solid transparent;
    white-space: normal;
  }

  .page-faq .faq-side__link:hover,
  .page-faq .faq-side__link:focus-visible {
    border-left-color: var(--cyan);
  }
}

@media (min-width: 1200px) {
  .page-faq .faq-hero__side {
    display: block;
    position: absolute;
    top: clamp(72px, 12vw, 128px);
    right: 12px;
    letter-spacing: 0.3em;
  }
}

/* ---------- 动效回退 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-map__item,
  .page-faq .faq-side__link,
  .page-faq .faq-acc .acc__item,
  .page-faq .faq-acc .acc__btn {
    transition: none;
  }

  .page-faq .faq-map__item:hover,
  .page-faq .faq-map__item:focus-visible {
    transform: none;
  }
}