.page-faq {
  --faq-line: rgba(56, 242, 200, .28);
  --faq-card: rgba(11, 43, 34, .58);
  --faq-card-edge: rgba(30, 77, 60, .9);
  --faq-soft: rgba(159, 179, 176, .2);
  background: var(--xl-night);
  color: var(--xl-white);
  padding-bottom: clamp(48px, 9vw, 110px);
}

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

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  padding-top: clamp(26px, 6vw, 62px);
  padding-bottom: clamp(22px, 4vw, 44px);
}

.page-faq .faq-hero__kicker {
  margin: 18px 0 0;
  color: var(--xl-cyan);
  letter-spacing: .2em;
  text-transform: uppercase;
}

.page-faq .faq-hero__title {
  margin: 10px 0 18px;
  font-family: var(--xl-font-display);
  font-weight: 800;
  font-size: clamp(1.85rem, 6.2vw, var(--xl-fs-64));
  line-height: 1.08;
  letter-spacing: -.02em;
  max-width: 20ch;
}

.page-faq .faq-hero__lede {
  max-width: 56ch;
  color: var(--xl-silver);
  margin: 0;
}

.page-faq .faq-hero__bar {
  list-style: none;
  margin: clamp(22px, 4vw, 36px) 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-faq .faq-hero__cell {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 10px 18px;
  border: 1px solid var(--faq-card-edge);
  border-radius: var(--xl-pill);
  background: var(--faq-card);
}

.page-faq .faq-hero__figure {
  font-family: var(--xl-font-mono);
  font-variant-numeric: tabular-nums;
  font-size: var(--xl-fs-28);
  line-height: 1;
  color: var(--xl-orange);
}

.page-faq .faq-hero__label {
  font-size: var(--xl-fs-13);
  color: var(--xl-silver);
}

/* ---------- 主体骨架 ---------- */
.page-faq .faq-body {
  display: grid;
  gap: clamp(24px, 4vw, 46px);
  align-items: start;
}

/* ---------- 章节导航 ---------- */
.page-faq .faq-rail {
  border-top: 2px solid var(--faq-line);
  padding-top: 14px;
}

.page-faq .faq-rail__title {
  margin: 0 0 10px;
  color: var(--xl-silver);
  letter-spacing: .18em;
}

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

.page-faq .xl-rail__link {
  display: block;
  white-space: nowrap;
  padding: 7px 14px;
  border: 1px solid var(--faq-soft);
  border-radius: var(--xl-pill);
  font-family: var(--xl-font-mono);
  font-size: var(--xl-fs-12);
  color: var(--xl-silver);
  text-decoration: none;
  transition: color .16s ease, border-color .16s ease, background-color .16s ease;
}

.page-faq .xl-rail__link:hover,
.page-faq .xl-rail__link[aria-current="true"] {
  color: var(--xl-night);
  background: var(--xl-cyan);
  border-color: var(--xl-cyan);
}

/* ---------- 章节通用 ---------- */
.page-faq .faq-flow {
  min-width: 0;
}

.page-faq .faq-chapter {
  padding-top: clamp(18px, 3vw, 30px);
}

.page-faq .faq-chapter + .faq-chapter {
  margin-top: clamp(34px, 5vw, 62px);
  padding-top: clamp(30px, 5vw, 54px);
  border-top: 1px solid var(--faq-soft);
}

.page-faq .xl-section__num {
  margin: 0 0 6px;
  font-family: var(--xl-font-mono);
  font-size: var(--xl-fs-13);
  letter-spacing: .24em;
  color: var(--xl-cyan);
}

.page-faq .faq-chapter h2 {
  margin: 0 0 12px;
  font-family: var(--xl-font-display);
  font-weight: 800;
  font-size: clamp(1.45rem, 3.8vw, var(--xl-fs-40));
  line-height: 1.18;
  letter-spacing: -.015em;
}

.page-faq .faq-chapter .xl-lede {
  max-width: 60ch;
  color: var(--xl-silver);
}

/* ---------- 01 技能树 ---------- */
.page-faq .faq-enter {
  display: grid;
  gap: clamp(24px, 4vw, 38px);
  margin-top: clamp(20px, 3vw, 32px);
}

.page-faq .faq-steps {
  list-style: none;
  margin: 0;
  padding: 0 0 0 34px;
  position: relative;
}

.page-faq .faq-steps::before {
  content: "";
  position: absolute;
  left: 11px;
  top: 10px;
  bottom: 18px;
  width: 2px;
  border-radius: var(--xl-pill);
  background: linear-gradient(180deg, var(--xl-cyan) 0%, rgba(56, 242, 200, .1) 100%);
}

.page-faq .faq-step {
  position: relative;
  padding-bottom: clamp(22px, 3vw, 34px);
}

.page-faq .faq-step:last-child {
  padding-bottom: 0;
}

.page-faq .faq-step__no {
  position: absolute;
  left: -34px;
  top: 2px;
  width: 24px;
  height: 24px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  border: 2px solid var(--xl-cyan);
  background: var(--xl-night);
  color: var(--xl-cyan);
  font-family: var(--xl-font-mono);
  font-size: 11px;
  line-height: 1;
}

.page-faq .faq-step__title {
  margin: 0 0 12px;
  font-family: var(--xl-font-display);
  font-size: var(--xl-fs-20);
  font-weight: 700;
  line-height: 1.35;
}

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

.page-faq .faq-step__see,
.page-faq .faq-step__do {
  margin: 0;
  padding: 13px 16px;
  border-radius: var(--xl-radius-sm);
  font-size: .95rem;
  line-height: 1.72;
}

.page-faq .faq-step__see {
  background: rgba(18, 58, 90, .42);
  border: 1px solid rgba(56, 242, 200, .16);
  color: var(--xl-silver);
}

.page-faq .faq-step__do {
  background: rgba(255, 90, 30, .1);
  border: 1px solid rgba(255, 90, 30, .32);
  color: var(--xl-white);
}

.page-faq .faq-step__key {
  display: block;
  margin-bottom: 4px;
  font-family: var(--xl-font-mono);
  font-size: var(--xl-fs-12);
  letter-spacing: .16em;
}

.page-faq .faq-step__see .faq-step__key {
  color: var(--xl-cyan);
}

.page-faq .faq-step__do .faq-step__key {
  color: var(--xl-orange);
}

/* ---------- 图片容器 ---------- */
.page-faq .faq-figure {
  margin: 0;
  border-radius: var(--xl-radius-md);
  overflow: hidden;
  border: 1px solid var(--faq-card-edge);
  background: var(--xl-pitch);
}

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

.page-faq .faq-figure figcaption {
  padding: 10px 16px 12px;
  font-family: var(--xl-font-mono);
  font-size: var(--xl-fs-12);
  color: var(--xl-silver);
}

/* ---------- 02 双栏面板 ---------- */
.page-faq .faq-split {
  display: grid;
  gap: 16px;
  margin-top: clamp(20px, 3vw, 30px);
}

.page-faq .faq-panel {
  padding: clamp(18px, 3vw, 26px);
  border-radius: var(--xl-radius-md);
  border: 1px solid var(--faq-card-edge);
  background: var(--faq-card);
}

.page-faq .faq-panel--alt {
  border-color: rgba(255, 90, 30, .34);
  background: rgba(255, 90, 30, .07);
}

.page-faq .faq-panel__title {
  margin: 0 0 12px;
  font-family: var(--xl-font-display);
  font-size: var(--xl-fs-20);
  font-weight: 700;
}

.page-faq .faq-list {
  margin: 0;
  padding-left: 20px;
  display: grid;
  gap: 9px;
  font-size: .95rem;
  line-height: 1.72;
  color: var(--xl-silver);
}

.page-faq .faq-list--num {
  list-style: decimal;
}

.page-faq .faq-list li::marker {
  color: var(--xl-orange);
  font-family: var(--xl-font-mono);
}

/* ---------- 03 标签与场景 ---------- */
.page-faq .faq-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: clamp(18px, 3vw, 26px) 0 clamp(18px, 3vw, 26px);
}

.page-faq .faq-chips .xl-chip {
  padding: 8px 18px;
  border-radius: var(--xl-pill);
  border: 1px solid var(--faq-soft);
  background: transparent;
  color: var(--xl-silver);
  font-family: var(--xl-font-mono);
  font-size: var(--xl-fs-13);
  cursor: pointer;
  transition: color .16s ease, background-color .16s ease, border-color .16s ease;
}

.page-faq .faq-chips .xl-chip:hover {
  color: var(--xl-white);
  border-color: var(--xl-cyan);
}

.page-faq .faq-chips .xl-chip[aria-pressed="true"] {
  background: var(--xl-cyan);
  border-color: var(--xl-cyan);
  color: var(--xl-night);
}

.page-faq .faq-scenes {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq .faq-scene {
  padding: 16px 18px;
  border-radius: var(--xl-radius-sm);
  border: 1px solid var(--faq-card-edge);
  background: var(--faq-card);
}

.page-faq .faq-scene h3 {
  margin: 0 0 7px;
  font-family: var(--xl-font-display);
  font-size: var(--xl-fs-16);
  font-weight: 700;
  color: var(--xl-cyan);
}

.page-faq .faq-scene p {
  margin: 0;
  font-size: .93rem;
  line-height: 1.72;
  color: var(--xl-silver);
}

.page-faq .faq-note {
  margin: clamp(18px, 3vw, 26px) 0 0;
  padding-left: 16px;
  border-left: 2px solid var(--xl-orange);
  font-size: .9rem;
  line-height: 1.75;
  color: var(--xl-silver);
  max-width: 68ch;
}

/* ---------- 04 奶油编辑段 ---------- */
.page-faq .faq-editorial {
  background: var(--xl-cream);
  color: var(--xl-ink);
  border-radius: var(--xl-radius-lg);
  padding: clamp(22px, 4.5vw, 46px);
  margin-top: clamp(34px, 5vw, 62px);
}

.page-faq .faq-editorial + .faq-chapter {
  border-top: none;
}

.page-faq .faq-editorial .xl-section__num {
  color: var(--xl-orange);
}

.page-faq .faq-editorial h2 {
  color: var(--xl-ink);
}

.page-faq .faq-editorial__lede {
  color: rgba(36, 26, 21, .72);
}

.page-faq .faq-version {
  display: grid;
  gap: clamp(20px, 3.5vw, 34px);
  margin-top: clamp(18px, 3vw, 28px);
}

.page-faq .faq-vsteps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-faq .faq-vsteps li {
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  padding-bottom: 14px;
  border-bottom: 1px solid rgba(36, 26, 21, .14);
}

.page-faq .faq-vsteps li:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.page-faq .faq-vsteps__no {
  font-family: var(--xl-font-mono);
  font-variant-numeric: tabular-nums;
  font-size: var(--xl-fs-28);
  line-height: 1;
  color: var(--xl-orange);
}

.page-faq .faq-vsteps p {
  margin: 0;
  font-size: .96rem;
  line-height: 1.75;
  color: var(--xl-ink);
}

.page-faq .faq-figure--light {
  border-color: rgba(36, 26, 21, .18);
  background: var(--xl-night);
}

.page-faq .faq-figure--light figcaption {
  color: rgba(36, 26, 21, .62);
  background: rgba(36, 26, 21, .06);
}

.page-faq .faq-version__rule {
  margin: 16px 0 0;
  font-size: .9rem;
  line-height: 1.75;
  color: rgba(36, 26, 21, .74);
}

/* ---------- 05 速查折叠 ---------- */
.page-faq .faq-fixes {
  display: grid;
  gap: 10px;
  margin-top: clamp(18px, 3vw, 26px);
}

.page-faq .faq-fix {
  border: 1px solid var(--faq-card-edge);
  border-radius: var(--xl-radius-sm);
  background: var(--faq-card);
  overflow: hidden;
}

.page-faq .faq-fix[open] {
  border-color: rgba(56, 242, 200, .42);
}

.page-faq .faq-fix__q {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 14px 18px;
  cursor: pointer;
  list-style: none;
  font-family: var(--xl-font-display);
  font-size: var(--xl-fs-16);
  font-weight: 700;
  color: var(--xl-white);
}

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

.page-faq .faq-fix__index {
  font-family: var(--xl-font-mono);
  font-variant-numeric: tabular-nums;
  font-size: var(--xl-fs-13);
  color: var(--xl-orange);
}

.page-faq .faq-fix__body {
  padding: 0 18px 16px 50px;
  border-top: 1px solid var(--faq-soft);
  padding-top: 14px;
}

.page-faq .faq-fix__body ol {
  margin: 0;
  padding-left: 20px;
  display: grid;
  gap: 7px;
  font-size: .92rem;
  line-height: 1.72;
  color: var(--xl-silver);
}

.page-faq .faq-fix__body ol li::marker {
  font-family: var(--xl-font-mono);
  color: var(--xl-cyan);
}

/* ---------- 06 联系 ---------- */
.page-faq .faq-contact {
  display: grid;
  gap: 20px;
  margin-top: clamp(18px, 3vw, 28px);
}

.page-faq .faq-contact__ways {
  padding: clamp(18px, 3vw, 26px);
  border-radius: var(--xl-radius-md);
  border: 1px solid var(--faq-card-edge);
  background: var(--faq-card);
}

.page-faq .faq-contact__ways .xl-contact__row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 16px;
  padding: 10px 0;
  border-bottom: 1px solid var(--faq-soft);
}

.page-faq .faq-contact__ways .xl-contact__row:last-of-type {
  border-bottom: none;
}

.page-faq .xl-contact__key {
  flex: 0 0 84px;
  font-family: var(--xl-font-mono);
  font-size: var(--xl-fs-13);
  color: var(--xl-cyan);
}

.page-faq .xl-contact__val {
  font-size: .96rem;
  color: var(--xl-white);
  word-break: break-word;
}

.page-faq .xl-contact__note {
  margin: 12px 0 0;
  font-size: .85rem;
  color: var(--xl-silver);
}

.page-faq .faq-contact__tips {
  padding: clamp(18px, 3vw, 26px);
  border-radius: var(--xl-radius-md);
  border: 1px solid rgba(255, 90, 30, .32);
  background: rgba(255, 90, 30, .07);
}

.page-faq .faq-contact__tips .faq-list {
  color: rgba(247, 251, 250, .82);
}

.page-faq .faq-contact__tips .xl-btn {
  margin-top: 16px;
}

/* ---------- 返回顶部 ---------- */
.page-faq .xl-totop {
  position: fixed;
  right: clamp(16px, 3vw, 34px);
  bottom: clamp(16px, 3vw, 34px);
  width: 48px;
  height: 48px;
  display: none;
  place-items: center;
  border-radius: var(--xl-pill);
  border: 1px solid var(--xl-cyan);
  background: rgba(6, 19, 26, .9);
  color: var(--xl-cyan);
  font-family: var(--xl-font-mono);
  font-size: var(--xl-fs-16);
  cursor: pointer;
  z-index: 30;
}

.page-faq .xl-totop[data-visible="true"] {
  display: grid;
}

/* ---------- 平板及以上 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-step__pair {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 14px;
  }

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

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

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

/* ---------- 桌面 ---------- */
@media (min-width: 960px) {
  .page-faq .faq-body {
    grid-template-columns: 224px minmax(0, 1fr);
  }

  .page-faq .faq-rail {
    position: sticky;
    top: 104px;
    border-top: none;
    border-left: 2px solid var(--faq-line);
    padding: 4px 0 4px 18px;
  }

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

  .page-faq .xl-rail__link {
    border-color: transparent;
    padding: 6px 10px;
    border-radius: var(--xl-radius-sm);
  }

  .page-faq .faq-enter {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, .85fr);
    align-items: start;
  }

  .page-faq .faq-version {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
    align-items: start;
  }
}

@media (min-width: 1180px) {
  .page-faq .faq-body {
    grid-template-columns: 250px minmax(0, 1fr);
    gap: 56px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .xl-rail__link,
  .page-faq .faq-chips .xl-chip {
    transition: none;
  }
}