.page-faq {
  --faq-gap: 28px;
  --faq-cut: 18px;
  padding-block: 26px 76px;
  color: var(--ice);
  font-family: var(--font-body);
  background:
    radial-gradient(760px 420px at 88% -6%, rgba(255, 106, 31, 0.16), transparent 62%),
    radial-gradient(620px 380px at 4% 32%, rgba(51, 214, 208, 0.09), transparent 66%);
}

.page-faq a {
  color: var(--cyan);
  text-decoration: none;
  transition: color 120ms ease, border-color 120ms ease;
}

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

.page-faq .crumbs {
  margin-bottom: 26px;
  font-size: 13px;
}

.page-faq .crumbs a {
  color: var(--ash);
}

.page-faq .crumbs a:hover {
  color: var(--cyan);
}

/* 布局：移动端单列，检索卡置顶；桌面端右栏常驻 */
.page-faq .faq-layout {
  display: grid;
  gap: var(--faq-gap);
}

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

.page-faq .faq-aside {
  order: -1;
  display: grid;
  gap: 14px;
  min-width: 0;
}

/* 首屏 */
.page-faq .faq-hero {
  position: relative;
  padding-bottom: 4px;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-hero .eyebrow {
  color: var(--lava);
  letter-spacing: 0.18em;
}

.page-faq h1 {
  margin: 10px 0 16px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(27px, 5.2vw, 44px);
  line-height: 1.22;
  letter-spacing: 0.01em;
  color: var(--ice);
}

.page-faq .faq-lede {
  margin: 0 0 20px;
  max-width: 64ch;
  color: var(--ash);
  font-size: 15px;
  line-height: 1.85;
}

/* 主题标签：切角小方块 */
.page-faq .faq-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  margin-top: 22px;
}

.page-faq .faq-chips a {
  display: inline-block;
  padding: 8px 15px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.05em;
  color: var(--cyan);
  background: var(--slate);
  border: 1px solid var(--line);
  clip-path: polygon(0 0, calc(100% - 9px) 0, 100% 9px, 100% 100%, 0 100%);
  transition: background 160ms ease, color 160ms ease, border-color 160ms ease;
}

.page-faq .faq-chips a:hover,
.page-faq .faq-chips a:focus-visible {
  color: var(--cream);
  border-color: var(--line-warm);
  background: linear-gradient(150deg, rgba(255, 106, 31, 0.4), rgba(226, 38, 59, 0.18));
}

/* 章节 */
.page-faq .faq-group {
  display: flow-root;
  margin-top: 46px;
  scroll-margin-top: 82px;
}

.page-faq .faq-group__no {
  margin: 0 0 8px;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--signal);
}

.page-faq .faq-group h2 {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(21px, 3.4vw, 29px);
  line-height: 1.3;
  color: var(--ice);
}

.page-faq .faq-group__intro {
  margin: 0 0 18px;
  max-width: 62ch;
  color: var(--ash);
  font-size: 14.5px;
  line-height: 1.8;
}

/* 手风琴条目 */
.page-faq .faq-item {
  margin-top: 11px;
  padding: 0 16px;
  background: var(--slate);
  border: 1px solid rgba(51, 214, 208, 0.13);
  border-left: 3px solid transparent;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--faq-cut)), calc(100% - var(--faq-cut)) 100%, 0 100%);
  transition: border-color 160ms ease, background 160ms ease;
}

.page-faq .faq-item:hover {
  border-color: var(--line-warm);
}

.page-faq .faq-item[open] {
  border-left-color: var(--lava);
  background: linear-gradient(150deg, rgba(255, 106, 31, 0.08), rgba(22, 25, 31, 0) 58%), var(--slate);
}

.page-faq .faq-item summary {
  position: relative;
  padding: 15px 38px 15px 0;
  list-style: none;
  cursor: pointer;
  font-size: 15.5px;
  font-weight: 600;
  line-height: 1.6;
  color: var(--ice);
}

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

.page-faq .faq-item summary::after {
  content: "+";
  position: absolute;
  right: 2px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  font-size: 17px;
  line-height: 1;
  color: var(--lava);
}

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

.page-faq .faq-item summary:focus-visible {
  outline: none;
  box-shadow: 0 0 0 2px var(--cyan);
}

.page-faq .faq-ans {
  padding: 2px 0 17px;
  border-top: 1px dashed rgba(51, 214, 208, 0.16);
  margin-top: 2px;
  padding-top: 13px;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--ash);
}

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

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

.page-faq .k {
  font-family: var(--font-mono);
  letter-spacing: 0.04em;
  color: var(--cyan);
}

/* 配图 */
.page-faq .faq-figure {
  margin: 20px 0 6px;
}

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

.page-faq .faq-figure figcaption {
  margin-top: 8px;
  font-size: 12px;
  letter-spacing: 0.03em;
  color: var(--ash);
}

/* 三步指南 */
.page-faq .faq-steps {
  display: grid;
  gap: 12px;
  margin: 4px 0 8px;
}

.page-faq .faq-step {
  padding: 18px 16px 16px;
  background: linear-gradient(158deg, rgba(255, 106, 31, 0.14), rgba(22, 25, 31, 0) 62%), var(--slate);
  border: 1px solid var(--line-warm);
  border-top: 2px solid var(--lava);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--faq-cut)), calc(100% - var(--faq-cut)) 100%, 0 100%);
}

.page-faq .faq-step__no {
  margin: 0 0 6px;
  font-family: var(--font-geo);
  font-size: 26px;
  line-height: 1;
  color: var(--lava);
  text-shadow: 0 0 10px rgba(255, 106, 31, 0.5);
}

.page-faq .faq-step h3 {
  margin: 0 0 8px;
  font-family: var(--font-body);
  font-size: 15.5px;
  font-weight: 700;
  color: var(--ice);
}

.page-faq .faq-step p {
  margin: 0 0 10px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--ash);
}

.page-faq .faq-step__check {
  margin: 0;
  padding-top: 10px;
  border-top: 1px dashed rgba(51, 214, 208, 0.22);
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--cyan);
}

/* 数据条 */
.page-faq .faq-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin: 4px 0 18px;
}

.page-faq .faq-stat {
  padding: 14px 14px 13px;
  background: var(--slate);
  border-left: 2px solid var(--signal);
}

.page-faq .faq-stat__n {
  margin: 0 0 4px;
  font-size: 23px;
  line-height: 1.1;
  color: var(--cream);
}

.page-faq .faq-stat__n .k {
  color: var(--ember);
}

.page-faq .faq-stat__l {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.03em;
  color: var(--ash);
}

/* 右侧检索与快捷入口 */
.page-faq .faq-search {
  padding: 16px;
  background: linear-gradient(165deg, rgba(51, 214, 208, 0.1), rgba(22, 25, 31, 0) 70%), var(--slate);
}

.page-faq .faq-search__title {
  margin: 0 0 10px;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--lava);
}

.page-faq .faq-search__label {
  display: block;
  margin-bottom: 9px;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--ash);
}

.page-faq .faq-search__input {
  width: 100%;
  box-sizing: border-box;
  padding: 10px 12px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--ice);
  background: var(--void);
  border: 1px solid var(--line);
  border-radius: 0;
  appearance: none;
}

.page-faq .faq-search__input::placeholder {
  color: rgba(168, 176, 184, 0.75);
}

.page-faq .faq-search__input:focus-visible {
  outline: none;
  border-color: var(--cyan);
  box-shadow: 0 0 0 3px rgba(51, 214, 208, 0.18);
}

.page-faq .faq-search__hint {
  margin: 10px 0 0;
  font-size: 12px;
  line-height: 1.65;
  color: var(--ash);
}

.page-faq .faq-aside__box {
  padding: 15px 16px;
  background: var(--slate);
  border: 1px solid var(--line);
  clip-path: polygon(0 0, calc(100% - 12px) 0, 100% 12px, 100% 100%, 0 100%);
}

.page-faq .faq-aside__box--warm {
  border-color: var(--line-warm);
  background: linear-gradient(160deg, rgba(110, 74, 44, 0.34), rgba(22, 25, 31, 0) 66%), var(--slate);
}

.page-faq .faq-aside__t {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--ash);
}

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

.page-faq .faq-links a,
.page-faq .faq-rank a {
  display: block;
  font-size: 13.5px;
  line-height: 1.5;
  color: var(--ice);
  border-bottom: 1px solid transparent;
}

.page-faq .faq-links a:hover,
.page-faq .faq-rank a:hover {
  color: var(--lava);
  border-bottom-color: var(--line-warm);
}

.page-faq .faq-rank {
  margin: 0;
  padding-left: 18px;
  display: grid;
  gap: 9px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--ember);
}

.page-faq .faq-rank a {
  font-family: var(--font-body);
}

/* 中等屏 */
@media (min-width: 700px) {
  .page-faq .faq-chips {
    gap: 11px;
  }

  .page-faq .faq-steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
  }

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

  .page-faq .faq-figure--side {
    float: right;
    width: 42%;
    margin: 6px 0 16px 22px;
  }
}

/* 桌面：右栏常驻检索 */
@media (min-width: 980px) {
  .page-faq .faq-layout {
    grid-template-columns: minmax(0, 1fr) 292px;
    gap: 46px;
    align-items: start;
  }

  .page-faq .faq-aside {
    order: 0;
    position: sticky;
    top: 86px;
    align-self: start;
  }

  .page-faq .faq-group {
    margin-top: 54px;
  }

  .page-faq .faq-lede {
    font-size: 16px;
  }
}