.page-faq {
  --faq-rail-w: 232px;
  --faq-gap: clamp(20px, 3vw, 44px);
  --faq-soft: rgba(243, 245, 255, 0.84);
  padding-bottom: clamp(40px, 7vw, 96px);
}

/* ---------- 面包屑 ---------- */
.page-faq .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: clamp(18px, 3vw, 32px) 0 0;
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--haze);
}

.page-faq .breadcrumb a {
  color: var(--path);
  text-decoration: none;
}

.page-faq .breadcrumb a:hover,
.page-faq .breadcrumb a:focus-visible {
  text-decoration: underline;
}

/* ---------- 首屏框景 ---------- */
.page-faq .faq-hero {
  position: relative;
  margin: clamp(16px, 3vw, 30px) 0 clamp(26px, 5vw, 56px);
  padding: clamp(26px, 4.5vw, 56px) clamp(20px, 3.6vw, 54px) clamp(28px, 4vw, 50px);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-xl);
  background:
    radial-gradient(130% 150% at 92% -25%, rgba(43, 240, 208, 0.16), transparent 58%),
    linear-gradient(158deg, var(--panel) 0%, var(--ink) 64%);
  overflow: hidden;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 16px;
  background-image: repeating-linear-gradient(to right, var(--line-strong) 0 1px, transparent 1px 17px);
  opacity: 0.85;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  right: -20px;
  bottom: -40px;
  width: 220px;
  height: 220px;
  border: 1px dashed rgba(43, 240, 208, 0.3);
  border-radius: 50%;
  pointer-events: none;
}

.page-faq .faq-hero .eyebrow {
  margin-top: 10px;
}

.page-faq .faq-hero h1 {
  margin: 14px 0 0;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(32px, 6.2vw, 68px);
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--white);
  max-width: 20ch;
}

.page-faq .faq-hero .lede {
  margin: 20px 0 0;
  max-width: 58ch;
  font-size: clamp(15.5px, 1.6vw, 18px);
  line-height: 1.8;
  color: var(--faq-soft);
}

.page-faq .faq-hero .lede a {
  color: var(--path);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 10px;
  margin-top: clamp(22px, 3vw, 34px);
}

/* ---------- 主体两栏 ---------- */
.page-faq .faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--faq-gap);
  align-items: start;
}

/* ---------- 左侧路径轴 ---------- */
.page-faq .faq-rail {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 14px 0;
}

.page-faq .faq-rail .chapter-nav__title {
  margin: 0 0 10px;
}

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

.page-faq .faq-rail__item {
  flex: 0 0 auto;
}

.page-faq .faq-rail__link {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 13px;
  border: 1px solid var(--line);
  border-radius: var(--pill);
  color: var(--haze);
  font-size: 13px;
  white-space: nowrap;
  text-decoration: none;
  transition: color 0.2s ease, border-color 0.2s ease, background-color 0.2s ease;
}

.page-faq .faq-rail__no {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--path);
}

.page-faq .faq-rail__link:hover,
.page-faq .faq-rail__link:focus-visible {
  color: var(--white);
  border-color: var(--line-strong);
}

.page-faq .faq-rail__link.is-current {
  color: var(--white);
  border-color: var(--path);
  background: rgba(43, 240, 208, 0.1);
}

/* ---------- 步骤区块 ---------- */
.page-faq .faq-flow {
  min-width: 0;
}

.page-faq .faq-step {
  position: relative;
  padding-top: clamp(20px, 3vw, 30px);
  margin-bottom: clamp(34px, 5.5vw, 72px);
  border-top: 1px solid var(--line);
}

.page-faq .faq-step:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-faq .faq-step__head {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}

.page-faq .faq-step__no {
  display: inline-flex;
  align-items: center;
  padding: 3px 12px;
  border: 1px solid rgba(43, 240, 208, 0.45);
  border-radius: var(--pill);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--path);
  line-height: 1.5;
}

.page-faq .faq-step .title {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(24px, 3.4vw, 38px);
  line-height: 1.15;
  letter-spacing: -0.01em;
  color: var(--white);
}

.page-faq .faq-step__lead {
  margin: 16px 0 0;
  max-width: 62ch;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.85;
  color: var(--faq-soft);
}

.page-faq .faq-step .subtitle {
  margin: clamp(26px, 3.4vw, 40px) 0 0;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(17px, 2vw, 21px);
  line-height: 1.4;
  color: var(--white);
}

.page-faq .faq-outro {
  margin: 22px 0 0;
  padding: 14px 18px;
  border-left: 2px solid var(--path);
  border-radius: 0 var(--radius) var(--radius) 0;
  background: rgba(43, 240, 208, 0.07);
  font-size: 15px;
  line-height: 1.8;
  color: var(--faq-soft);
}

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

/* ---------- 两步卡片 ---------- */
.page-faq .faq-pair {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
  margin: clamp(20px, 3vw, 30px) 0 0;
}

.page-faq .faq-card {
  position: relative;
  padding: 20px 22px 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: linear-gradient(150deg, rgba(21, 28, 74, 0.95), rgba(11, 16, 48, 0.9));
}

.page-faq .faq-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 22px;
  bottom: 22px;
  width: 3px;
  border-radius: 0 3px 3px 0;
  background: linear-gradient(180deg, var(--path), rgba(43, 240, 208, 0));
}

.page-faq .faq-card__no {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--announce);
}

.page-faq .faq-card h3 {
  margin: 10px 0 0;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(17px, 2vw, 21px);
  line-height: 1.4;
  color: var(--white);
}

.page-faq .faq-card p {
  margin: 10px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--faq-soft);
}

.page-faq .faq-flag {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  margin: 16px 0 0;
  padding-top: 13px;
  border-top: 1px dashed var(--line-strong);
  font-size: 14px;
  line-height: 1.7;
  color: var(--haze);
}

.page-faq .faq-flag .dot {
  flex: 0 0 auto;
  margin-top: 0.55em;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--path);
  box-shadow: 0 0 0 3px rgba(43, 240, 208, 0.16);
}

.page-faq .faq-flag b {
  color: var(--path);
  font-weight: 600;
}

/* ---------- 图片 ---------- */
.page-faq .faq-figure {
  margin: clamp(24px, 3.5vw, 38px) 0 0;
}

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

.page-faq .faq-figure figcaption {
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--haze);
}

/* ---------- 要点列表 ---------- */
.page-faq .faq-ticks {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  display: grid;
  gap: 11px;
}

.page-faq .faq-ticks > li {
  position: relative;
  padding-left: 24px;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--faq-soft);
}

.page-faq .faq-ticks > li::before {
  content: "";
  position: absolute;
  left: 3px;
  top: 0.72em;
  width: 8px;
  height: 8px;
  border: 1.5px solid var(--path);
  border-radius: 50%;
}

.page-faq .faq-ticks strong {
  color: var(--white);
  font-weight: 600;
}

/* ---------- 编号步骤 ---------- */
.page-faq .faq-ordered {
  counter-reset: faq-order;
  list-style: none;
  margin: clamp(18px, 2.5vw, 26px) 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-faq .faq-ordered > li {
  counter-increment: faq-order;
  position: relative;
  padding: 17px 20px 17px 64px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(21, 28, 74, 0.6);
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--faq-soft);
}

.page-faq .faq-ordered > li::before {
  content: counter(faq-order, decimal-leading-zero);
  position: absolute;
  left: 20px;
  top: 17px;
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: 0.08em;
  color: var(--path);
}

.page-faq .faq-ordered strong {
  display: block;
  margin-bottom: 4px;
  color: var(--white);
  font-weight: 600;
}

/* ---------- 状态标签 ---------- */
.page-faq .faq-status-list {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
  margin: clamp(20px, 3vw, 28px) 0 0;
}

.page-faq .faq-status {
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-top: 3px solid var(--haze);
  border-radius: var(--radius);
  background: var(--panel);
}

.page-faq .faq-status--online {
  border-top-color: var(--path);
}

.page-faq .faq-status--warn {
  border-top-color: var(--announce);
}

.page-faq .faq-status--archive {
  border-top-color: var(--archive);
}

.page-faq .faq-status .status {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--white);
}

.page-faq .faq-status p + p {
  margin: 12px 0 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--faq-soft);
}

/* ---------- 问答折叠 ---------- */
.page-faq .faq-qa {
  margin-top: clamp(26px, 3.5vw, 40px);
  border-top: 1px solid var(--line);
}

.page-faq .faq-qa details {
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-qa summary {
  position: relative;
  padding: 17px 40px 17px 0;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.6;
  color: var(--white);
  cursor: pointer;
  list-style: none;
}

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

.page-faq .faq-qa summary:hover {
  color: var(--path);
}

.page-faq .faq-qa summary::after {
  content: "+";
  position: absolute;
  right: 6px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  font-size: 19px;
  line-height: 1;
  color: var(--path);
  transition: transform 0.2s ease;
}

.page-faq .faq-qa details[open] summary::after {
  content: "–";
  transform: translateY(-50%) rotate(180deg);
}

.page-faq .faq-qa__body {
  padding: 0 40px 18px 0;
}

.page-faq .faq-qa__body p {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--faq-soft);
}

/* ---------- 可打印清单 ---------- */
.page-faq .faq-sheet {
  margin: clamp(22px, 3vw, 32px) 0 0;
  padding: clamp(20px, 2.6vw, 28px);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(135deg, rgba(21, 28, 74, 0.95), rgba(11, 16, 48, 0.92));
}

.page-faq .faq-sheet__title {
  margin: 0;
  font-size: 12.5px;
  letter-spacing: 0.1em;
  color: var(--announce);
}

.page-faq .faq-sheet__list {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-faq .faq-sheet__list > li {
  display: grid;
  gap: 4px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
  font-size: 15px;
  line-height: 1.7;
  color: var(--faq-soft);
}

.page-faq .faq-sheet__k {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.08em;
  color: var(--path);
}

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

/* ---------- 收束 ---------- */
.page-faq .faq-cta {
  margin-top: clamp(34px, 5vw, 64px);
  padding: clamp(24px, 4vw, 48px);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-xl);
  background:
    radial-gradient(120% 140% at 8% -30%, rgba(255, 154, 46, 0.16), transparent 60%),
    linear-gradient(150deg, var(--panel), var(--ink) 70%);
}

.page-faq .faq-cta .title {
  margin: 12px 0 0;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(22px, 3vw, 34px);
  line-height: 1.2;
  color: var(--white);
}

.page-faq .faq-cta p {
  margin: 14px 0 0;
  max-width: 56ch;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--faq-soft);
}

.page-faq .faq-cta__acts {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(20px, 3vw, 30px);
}

/* ---------- 中等宽度 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-pair {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .faq-sheet__list > li {
    grid-template-columns: 132px minmax(0, 1fr);
    gap: 16px;
  }

  .page-faq .faq-status-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

/* ---------- 桌面：左侧路径轴吸附 ---------- */
@media (min-width: 1024px) {
  .page-faq .faq-layout {
    grid-template-columns: var(--faq-rail-w) minmax(0, 1fr);
    gap: clamp(30px, 4vw, 64px);
  }

  .page-faq .faq-rail {
    position: sticky;
    top: calc(var(--head-total) + 22px);
    border-top: 0;
    border-bottom: 0;
    padding: 0;
  }

  .page-faq .faq-rail .chapter-nav__title {
    padding-bottom: 12px;
    border-bottom: 1px solid var(--line);
  }

  .page-faq .faq-rail__list {
    flex-direction: column;
    gap: 2px;
    padding: 6px 0 0;
    overflow: visible;
  }

  .page-faq .faq-rail__item {
    flex: 1 1 auto;
  }

  .page-faq .faq-rail__link {
    padding: 11px 0 11px 15px;
    border: 0;
    border-left: 2px solid transparent;
    border-radius: 0;
    white-space: normal;
    line-height: 1.5;
  }

  .page-faq .faq-rail__link.is-current {
    border-left-color: var(--path);
    background: linear-gradient(90deg, rgba(43, 240, 208, 0.13), rgba(43, 240, 208, 0));
    color: var(--white);
  }

  .page-faq .faq-step .faq-step__lead,
  .page-faq .faq-step .faq-ticks,
  .page-faq .faq-step .faq-ordered,
  .page-faq .faq-outro {
    max-width: 74ch;
  }
}

/* ---------- 打印 ---------- */
@media print {
  .page-faq {
    color: #111;
    background: #fff;
  }

  .page-faq .faq-rail,
  .page-faq .faq-cta__acts,
  .page-faq .faq-hero::after {
    display: none !important;
  }

  .page-faq .faq-hero,
  .page-faq .faq-sheet,
  .page-faq .faq-cta,
  .page-faq .faq-card,
  .page-faq .faq-ordered > li,
  .page-faq .faq-status {
    background: #fff !important;
    border-color: #bbb !important;
    box-shadow: none !important;
  }
}
</main>