.page-faq {
  --faq-panel: rgba(11, 42, 74, .62);
  --faq-grid-line: rgba(23, 212, 230, .10);
  --faq-ring: rgba(23, 212, 230, .24);
  background: var(--ink);
  color: var(--mist);
  overflow-x: hidden;
}

/* ---------- Hero ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(26px, 5vw, 44px) 0 clamp(84px, 11vw, 132px);
  background:
    radial-gradient(120% 90% at 88% 0%, rgba(23, 212, 230, .16) 0%, transparent 58%),
    linear-gradient(160deg, #05162a 0%, var(--ink) 46%, #08203a 100%);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--faq-grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--faq-grid-line) 1px, transparent 1px);
  background-size: 44px 44px;
  -webkit-mask-image: linear-gradient(180deg, #000 0%, transparent 88%);
  mask-image: linear-gradient(180deg, #000 0%, transparent 88%);
  pointer-events: none;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  right: -18%;
  bottom: -32%;
  width: 78%;
  height: 78%;
  background: linear-gradient(115deg, rgba(23, 212, 230, .22), rgba(255, 138, 61, .12));
  clip-path: polygon(24% 0, 100% 18%, 100% 100%, 0 100%);
  transform: rotate(-5deg);
  pointer-events: none;
}

.page-faq .faq-hero-inner {
  position: relative;
  z-index: 1;
}

.page-faq .faq-crumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-dim);
  margin-bottom: clamp(20px, 4vw, 34px);
}

.page-faq .faq-crumb a {
  color: var(--cyan-soft);
  text-decoration: none;
}

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

.page-faq .faq-crumb .breadcrumb-sep {
  opacity: .5;
}

.page-faq .faq-hero .eyebrow {
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .14em;
  text-transform: uppercase;
  margin: 0 0 14px;
}

.page-faq h1 {
  margin: 0 0 18px;
  max-width: 20ch;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: clamp(30px, 5.4vw, 56px);
  line-height: 1.12;
  letter-spacing: -.02em;
  color: var(--mist);
}

.page-faq .faq-lead {
  margin: 0 0 26px;
  max-width: 62ch;
  font-size: clamp(15px, 1.7vw, 17px);
  line-height: 1.8;
  color: var(--text-dim);
}

.page-faq .faq-hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-hero-tags .chip {
  display: inline-block;
  padding: 6px 14px;
  border-radius: var(--r-pill);
  border: 1px solid var(--faq-ring);
  background: rgba(23, 212, 230, .07);
  color: var(--cyan-soft);
  font-size: 12px;
  letter-spacing: .02em;
}

/* ---------- 命令检索条 ---------- */
.page-faq .faq-cmd-wrap {
  position: relative;
  z-index: 3;
  margin-top: -52px;
}

.page-faq .faq-cmd {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 16px;
  padding: 16px 18px;
  border-radius: var(--r-lg);
  border: 1px solid var(--faq-ring);
  background: linear-gradient(130deg, rgba(11, 42, 74, .96), rgba(7, 28, 51, .96));
  box-shadow: 0 22px 46px rgba(3, 12, 24, .55);
}

.page-faq .faq-cmd-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
  width: 38px;
  height: 38px;
  border-radius: var(--r-pill);
  border: 1px solid var(--cyan);
  color: var(--cyan);
  background: rgba(23, 212, 230, .10);
}

.page-faq .faq-cmd-text {
  flex: 1 1 260px;
  margin: 0;
  font-size: 14px;
  line-height: 1.6;
  color: var(--text-dim);
}

.page-faq .faq-cmd-label {
  display: inline-block;
  margin-right: 10px;
  padding: 2px 9px;
  border-radius: var(--r-pill);
  background: var(--cyan);
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .06em;
}

.page-faq .faq-cmd-keys {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-kw {
  padding: 5px 12px;
  border-radius: var(--r-pill);
  border: 1px dashed var(--faq-ring);
  color: var(--cyan-soft);
  font-size: 12px;
  background: rgba(140, 242, 247, .05);
}

/* ---------- 布局 ---------- */
.page-faq .faq-layout {
  display: grid;
  gap: 24px;
  padding-top: clamp(38px, 5vw, 66px);
  padding-bottom: clamp(56px, 8vw, 100px);
}

.page-faq .faq-aside-title {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--slate);
}

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

.page-faq .faq-toc .toc-link {
  display: inline-block;
  white-space: nowrap;
  padding: 8px 14px;
  border-radius: var(--r-pill);
  border: 1px solid var(--line-soft);
  background: rgba(11, 42, 74, .5);
  color: var(--text-dim);
  font-size: 13px;
  text-decoration: none;
  transition: color .2s var(--ease), background .2s var(--ease), border-color .2s var(--ease);
}

.page-faq .faq-toc .toc-link:hover,
.page-faq .faq-toc .toc-link:focus-visible {
  border-color: var(--faq-ring);
  color: var(--cyan-soft);
}

.page-faq .faq-toc .toc-link[data-active="true"] {
  background: var(--cyan);
  border-color: var(--cyan);
  color: var(--ink);
  font-weight: 700;
}

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

/* ---------- 章节 ---------- */
.page-faq .faq-section {
  padding: clamp(34px, 5vw, 52px) 0;
  border-top: 1px dashed var(--line-soft);
}

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

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

.page-faq .faq-sec-head h2 {
  margin: 0 0 12px;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: clamp(23px, 3.4vw, 34px);
  line-height: 1.24;
  letter-spacing: -.02em;
  color: var(--mist);
}

.page-faq .faq-sec-intro {
  margin: 0 0 26px;
  max-width: 64ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--text-dim);
}

/* ---------- 四步条 ---------- */
.page-faq .faq-steps {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin: 0 0 22px;
  padding: 0;
  list-style: none;
  counter-reset: none;
}

.page-faq .faq-step-link {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 14px 16px;
  border-radius: var(--r-md);
  border: 1px solid var(--line-soft);
  background: rgba(23, 212, 230, .06);
  text-decoration: none;
  transition: transform .2s var(--ease), border-color .2s var(--ease), background .2s var(--ease);
}

.page-faq .faq-step-link:hover,
.page-faq .faq-step-link:focus-visible {
  transform: translateY(-3px);
  border-color: var(--cyan);
  background: rgba(23, 212, 230, .12);
}

.page-faq .faq-step-num {
  font-family: var(--font-mono);
  font-size: 26px;
  font-weight: 800;
  line-height: 1;
  color: var(--cyan);
}

.page-faq .faq-step-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--mist);
}

/* ---------- 图 ---------- */
.page-faq .faq-figure {
  margin: 0 0 24px;
  border-radius: var(--r-lg);
  overflow: hidden;
  border: 1px solid var(--line-soft);
  background: rgba(11, 42, 74, .5);
}

.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;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--slate);
  border-top: 1px solid var(--line-soft);
}

/* ---------- 步骤卡 ---------- */
.page-faq .faq-step-cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.page-faq .faq-step-card {
  padding: 20px 20px 22px;
  border-radius: var(--r-md);
  border: 1px solid var(--line-soft);
  background: var(--faq-panel);
  transition: border-color .2s var(--ease), transform .2s var(--ease);
}

.page-faq .faq-step-card:hover {
  border-color: var(--faq-ring);
  transform: translateY(-2px);
}

.page-faq .faq-step-card-num {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 30px;
  font-weight: 800;
  line-height: 1;
  color: var(--orange);
}

.page-faq .faq-step-card h3 {
  margin: 0 0 10px;
  font-family: var(--font-heading);
  font-size: 17px;
  font-weight: 800;
  color: var(--mist);
}

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

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

.page-faq .faq-pitfall {
  padding: 10px 12px;
  border-radius: 12px;
  border-left: 3px solid var(--orange);
  background: rgba(255, 138, 61, .09);
  font-size: 13px;
  color: rgba(255, 179, 122, .92);
}

.page-faq .faq-pitfall span {
  display: inline-block;
  margin-right: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--orange);
}

/* ---------- 图文错位 ---------- */
.page-faq .faq-split {
  display: grid;
  gap: 22px;
}

.page-faq .faq-figure--aside {
  margin: 0;
}

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

.page-faq .faq-q {
  border-radius: var(--r-md);
  border: 1px solid var(--line-soft);
  background: rgba(11, 42, 74, .55);
  transition: border-color .2s var(--ease), background .2s var(--ease);
}

.page-faq .faq-q[open] {
  border-color: var(--faq-ring);
  background: rgba(11, 42, 74, .82);
}

.page-faq .faq-q summary {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 16px 18px;
  cursor: pointer;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.6;
  color: var(--mist);
  list-style: none;
}

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

.page-faq .faq-q summary::after {
  content: "+";
  margin-left: auto;
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 20px;
  line-height: 1;
  color: var(--cyan);
  transition: transform .22s var(--ease);
}

.page-faq .faq-q[open] summary::after {
  transform: rotate(45deg);
}

.page-faq .faq-q summary:hover {
  color: var(--cyan-soft);
}

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

.page-faq .faq-q-idx {
  flex: 0 0 auto;
  padding: 1px 8px;
  border-radius: var(--r-pill);
  border: 1px solid var(--faq-ring);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  color: var(--cyan);
  letter-spacing: .04em;
}

.page-faq .faq-q-body {
  padding: 0 18px 18px 18px;
  border-top: 1px solid var(--line-soft);
  padding-top: 14px;
}

.page-faq .faq-q-body p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--text-dim);
}

/* ---------- 调整建议 ---------- */
.page-faq .faq-fix-list {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-fix-list li {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  padding: 16px 18px;
  border-radius: var(--r-md);
  border: 1px solid var(--line-soft);
  background: rgba(11, 42, 74, .45);
}

.page-faq .faq-fix-num {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: var(--r-pill);
  background: rgba(23, 212, 230, .14);
  border: 1px solid var(--faq-ring);
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 700;
}

.page-faq .faq-fix-list h3 {
  margin: 0 0 6px;
  font-family: var(--font-heading);
  font-size: 16px;
  font-weight: 800;
  color: var(--mist);
}

.page-faq .faq-fix-list p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-dim);
}

/* ---------- 联系 ---------- */
.page-faq .faq-contact-grid {
  display: grid;
  gap: 14px;
  margin-bottom: 20px;
}

.page-faq .faq-contact-card {
  padding: 20px;
  border-radius: var(--r-md);
  border: 1px solid var(--line-soft);
  background: linear-gradient(150deg, rgba(11, 42, 74, .78), rgba(7, 28, 51, .6));
}

.page-faq .faq-contact-key {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--cyan);
}

.page-faq .faq-contact-val {
  margin: 0 0 10px;
  font-family: var(--font-heading);
  font-size: clamp(16px, 2.4vw, 20px);
  font-weight: 800;
  letter-spacing: -.01em;
  color: var(--mist);
  word-break: break-word;
}

.page-faq .faq-contact-note {
  margin: 0;
  font-size: 13px;
  line-height: 1.75;
  color: var(--text-dim);
}

.page-faq .faq-contact-foot {
  padding-top: 18px;
  border-top: 1px dashed var(--line-soft);
}

.page-faq .faq-contact-addr,
.page-faq .faq-contact-hours {
  margin: 0 0 6px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--slate);
}

.page-faq .faq-inline-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 22px 0 0;
}

.page-faq .faq-inline-cta .btn {
  text-decoration: none;
}

/* ---------- 平板起 ---------- */
@media (min-width: 620px) {
  .page-faq .faq-steps {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

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

/* ---------- 桌面 ---------- */
@media (min-width: 940px) {
  .page-faq .faq-layout {
    grid-template-columns: 244px minmax(0, 1fr);
    gap: 56px;
    align-items: start;
  }

  .page-faq .faq-aside {
    position: sticky;
    top: 96px;
  }

  .page-faq .faq-toc .toc-list {
    flex-direction: column;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-faq .faq-toc .toc-link {
    display: block;
    padding: 10px 14px;
    border-radius: var(--r-md);
    border-color: transparent;
    background: transparent;
    white-space: normal;
  }

  .page-faq .faq-toc .toc-link[data-active="true"] {
    background: rgba(23, 212, 230, .12);
    border-color: var(--faq-ring);
    color: var(--cyan-soft);
  }

  .page-faq .faq-split {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
    gap: 32px;
    align-items: start;
  }

  .page-faq .faq-split .faq-figure--aside {
    position: sticky;
    top: 96px;
  }

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

  .page-faq .faq-step-cards {
    gap: 16px;
  }
}

@media (min-width: 1180px) {
  .page-faq .faq-cmd {
    padding: 18px 24px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-step-link,
  .page-faq .faq-step-card,
  .page-faq .faq-q,
  .page-faq .faq-q summary::after {
    transition: none;
  }

  .page-faq .faq-step-link:hover,
  .page-faq .faq-step-card:hover {
    transform: none;
  }
}