.page-faq {
  --faq-cut: polygon(0 0, calc(100% - 18px) 0, 100% 18px, 100% 100%, 18px 100%, 0 calc(100% - 18px));
  --faq-cut-sm: polygon(0 0, calc(100% - 10px) 0, 100% 10px, 100% 100%, 10px 100%, 0 calc(100% - 10px));
  --faq-cut-lg: polygon(0 0, calc(100% - 34px) 0, 100% 34px, 100% 100%, 34px 100%, 0 calc(100% - 34px));
  background: var(--deep);
  color: var(--paper);
}

/* ---------- 面包屑条 ---------- */
.page-faq .faq-topbar {
  background: var(--night);
  border-bottom: 1px solid var(--line-dark);
  padding: 11px 0;
}

.page-faq .breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
}

.page-faq .breadcrumb__item {
  display: flex;
  align-items: center;
  gap: 6px;
}

.page-faq .breadcrumb__item + .breadcrumb__item::before {
  content: "/";
  color: rgba(143, 163, 155, .55);
}

.page-faq .breadcrumb__link {
  color: var(--muted);
  text-decoration: none;
}

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

.page-faq .breadcrumb__current {
  color: var(--paper);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  background: var(--night);
  padding: 38px 0 50px;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  top: -22%;
  right: -12%;
  width: 68%;
  height: 142%;
  background: linear-gradient(158deg, rgba(31, 111, 74, .92) 0%, rgba(14, 36, 32, .12) 78%);
  clip-path: polygon(42% 0, 100% 14%, 100% 100%, 0 82%);
  opacity: .6;
  pointer-events: none;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  left: -6%;
  bottom: -18%;
  width: 46%;
  height: 60%;
  background: radial-gradient(closest-side, rgba(79, 240, 208, .16), transparent 72%);
  pointer-events: none;
}

.page-faq .faq-hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 32px;
}

.page-faq .eyebrow {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .2em;
  color: var(--amber);
  border-left: 2px solid var(--amber);
  padding-left: 10px;
  margin: 0;
}

.page-faq .faq-hero h1 {
  margin: 16px 0 0;
  font-size: clamp(28px, 6vw, 46px);
  line-height: 1.3;
  font-weight: 700;
  letter-spacing: .01em;
  color: var(--paper);
  max-width: 18ch;
}

.page-faq .faq-hero__lead {
  margin: 18px 0 0;
  max-width: 58ch;
  font-size: 15.5px;
  line-height: 1.9;
  color: rgba(244, 247, 243, .78);
}

.page-faq .faq-hero__actions {
  margin-top: 26px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 两步路径卡 ---------- */
.page-faq .pathmap {
  position: relative;
  background: rgba(7, 17, 15, .74);
  border: 1px solid rgba(79, 240, 208, .26);
  clip-path: var(--faq-cut);
  padding: 20px 20px 18px;
}

.page-faq .pathmap__title {
  margin: 0 0 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--cyan);
}

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

.page-faq .pathmap__step {
  position: relative;
  display: grid;
  grid-template-columns: 48px minmax(0, 1fr);
  gap: 12px;
  align-items: center;
}

.page-faq .pathmap__step + .pathmap__step::before {
  content: "";
  position: absolute;
  left: 23px;
  top: -14px;
  height: 12px;
  border-left: 1px dashed var(--amber);
  opacity: .7;
}

.page-faq .pathmap__num {
  font-family: var(--font-display);
  font-size: 26px;
  line-height: 1;
  text-align: center;
  padding: 9px 4px;
  color: var(--amber);
  background: rgba(242, 166, 59, .13);
  clip-path: var(--faq-cut-sm);
}

.page-faq .pathmap__label {
  font-size: 14px;
  line-height: 1.7;
  color: var(--paper);
}

.page-faq .pathmap__note {
  margin: 16px 0 0;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .05em;
  color: var(--muted);
}

/* ---------- 主体骨架 ---------- */
.page-faq .faq-body {
  background: var(--deep);
  padding: 38px 0 54px;
}

.page-faq .faq-body__inner {
  display: grid;
  gap: 26px;
}

/* ---------- 左侧索引抽屉 ---------- */
.page-faq .faq-index {
  background: rgba(7, 17, 15, .62);
  border: 1px solid var(--line-dark);
  padding: 16px 14px;
}

.page-faq .faq-index__title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--muted);
}

.page-faq .faq-index__list {
  display: grid;
  gap: 2px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-index__link {
  display: grid;
  grid-template-columns: 28px minmax(0, 1fr);
  gap: 8px;
  align-items: baseline;
  padding: 9px 6px;
  font-size: 14px;
  line-height: 1.5;
  color: #BFCEC8;
  text-decoration: none;
  border-left: 2px solid transparent;
  transition: color .18s ease, background .18s ease, border-color .18s ease;
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  color: var(--paper);
  background: rgba(63, 164, 106, .16);
  border-left-color: var(--grass-lift);
}

.page-faq .faq-index__link[aria-current="true"],
.page-faq .faq-index__link.is-active {
  color: var(--paper);
  background: rgba(242, 166, 59, .14);
  border-left-color: var(--amber);
}

.page-faq .faq-index__num {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--amber);
  letter-spacing: .06em;
}

/* ---------- 章节 ---------- */
.page-faq .faq-sec {
  padding: 0 0 40px;
}

.page-faq .faq-sec + .faq-sec {
  border-top: 1px solid var(--line-dark);
  padding-top: 34px;
}

.page-faq .faq-sec__head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin: 0 0 20px;
}

.page-faq .faq-sec__head::after {
  content: "";
  flex: 1 1 auto;
  height: 1px;
  background: repeating-linear-gradient(90deg, var(--line-dark) 0 6px, transparent 6px 13px);
}

.page-faq .faq-sec__idx {
  font-family: var(--font-display);
  font-size: 38px;
  line-height: .9;
  letter-spacing: .02em;
  color: var(--amber);
}

.page-faq .faq-sec__title {
  margin: 0;
  font-size: clamp(19px, 3.4vw, 25px);
  line-height: 1.42;
  font-weight: 700;
  color: var(--paper);
}

.page-faq .faq-sec__head--light .faq-sec__title {
  color: var(--paper);
}

.page-faq .faq-sec__head--light::after {
  background: repeating-linear-gradient(90deg, rgba(244, 247, 243, .22) 0 6px, transparent 6px 13px);
}

.page-faq .faq-sec__list {
  display: grid;
  gap: 14px;
}

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

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  clip-path: var(--faq-cut);
  background: var(--night);
}

.page-faq .media__caption {
  display: block;
  padding: 9px 2px 0;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .04em;
  color: var(--muted);
}

/* ---------- 四步 ---------- */
.page-faq .faq-steps {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-step {
  display: grid;
  gap: 7px;
  padding: 16px 18px;
  background: rgba(244, 247, 243, .055);
  border-left: 3px solid var(--grass-lift);
}

.page-faq .faq-step__num {
  font-family: var(--font-display);
  font-size: 24px;
  line-height: 1;
  color: var(--amber);
}

.page-faq .faq-step__title {
  margin: 0;
  font-size: 15.5px;
  font-weight: 700;
  line-height: 1.6;
  color: var(--paper);
}

.page-faq .faq-step__desc {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.85;
  color: rgba(244, 247, 243, .66);
}

/* ---------- 问答卡 ---------- */
.page-faq .qa {
  padding: 19px 20px 17px;
  background: var(--paper);
  color: var(--text);
  clip-path: var(--faq-cut);
}

.page-faq .qa__q {
  display: grid;
  grid-template-columns: 20px minmax(0, 1fr);
  gap: 10px;
  align-items: baseline;
  margin: 0 0 9px;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.65;
  color: var(--text);
}

.page-faq .qa__q::before {
  content: "Q";
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 400;
  line-height: 1.95;
  color: var(--grass);
}

.page-faq .qa__a {
  margin: 0 0 0 30px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--text);
}

.page-faq .qa__exit {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 12px 0 0 30px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .04em;
  color: var(--grass);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

.page-faq .qa__exit span {
  transition: transform .18s ease;
}

.page-faq .qa__exit:hover,
.page-faq .qa__exit:focus-visible {
  color: #14432E;
  border-bottom-color: currentColor;
}

.page-faq .qa__exit:hover span,
.page-faq .qa__exit:focus-visible span {
  transform: translateX(4px);
}

/* ---------- 纠错与联系 ---------- */
.page-faq .faq-closing {
  position: relative;
  background: linear-gradient(150deg, var(--grass) 0%, #123A29 62%, var(--deep) 100%);
  padding: 42px 0 52px;
}

.page-faq .faq-closing::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(58% 82% at 12% 0%, rgba(79, 240, 208, .16), transparent 68%);
  pointer-events: none;
}

.page-faq .faq-closing__inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 28px;
}

.page-faq .faq-closing__side {
  display: grid;
  gap: 18px;
  align-content: start;
}

.page-faq .faq-closing__media {
  margin: 0;
}

.page-faq .faq-closing__media img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  clip-path: var(--faq-cut);
  background: var(--night);
}

.page-faq .faq-closing .media__caption {
  color: rgba(244, 247, 243, .6);
}

.page-faq .faq-reach {
  background: rgba(7, 17, 15, .78);
  border: 1px solid rgba(79, 240, 208, .22);
  clip-path: var(--faq-cut);
  padding: 18px 20px 20px;
}

.page-faq .faq-reach__title {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--cyan);
}

.page-faq .faq-reach__line {
  display: grid;
  gap: 3px;
  margin: 0 0 12px;
}

.page-faq .faq-reach__label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--muted);
}

.page-faq .faq-reach__value {
  font-size: 14.5px;
  line-height: 1.6;
  color: var(--paper);
  word-break: break-all;
}

.page-faq .faq-reach__note {
  margin: 4px 0 0;
  padding-top: 12px;
  border-top: 1px solid var(--line-dark);
  font-size: 12.5px;
  line-height: 1.9;
  color: rgba(244, 247, 243, .62);
}

/* ---------- 交互态 ---------- */
.page-faq a:focus-visible,
.page-faq .btn:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

/* ---------- 断点 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-hero {
    padding: 52px 0 68px;
  }

  .page-faq .faq-hero__lead {
    font-size: 16.5px;
  }

  .page-faq .faq-steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
  }

  .page-faq .faq-body {
    padding: 54px 0 72px;
  }

  .page-faq .faq-sec {
    padding-bottom: 52px;
  }

  .page-faq .faq-sec + .faq-sec {
    padding-top: 44px;
  }

  .page-faq .qa {
    padding: 22px 26px 20px;
  }

  .page-faq .qa__a {
    font-size: 15.5px;
  }

  .page-faq .faq-closing {
    padding: 56px 0 68px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 1.35fr) minmax(268px, .72fr);
    gap: 52px;
    align-items: end;
  }

  .page-faq .faq-closing__inner {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, .85fr);
    gap: 44px;
    align-items: start;
  }
}

@media (min-width: 980px) {
  .page-faq .faq-body__inner {
    grid-template-columns: 218px minmax(0, 1fr);
    gap: 46px;
    align-items: start;
  }

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

  .page-faq .faq-index__list {
    max-height: calc(100vh - 140px);
    overflow-y: auto;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .qa__exit span,
  .page-faq .faq-index__link {
    transition: none;
  }

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