.page-faq {
  --faq-line: rgba(11, 30, 58, .10);
  --faq-hair: rgba(68, 85, 107, .24);
  --faq-gap: clamp(40px, 6vw, 64px);
  background: var(--paper);
  color: var(--ink);
  overflow-x: clip;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  background: var(--navy);
  color: var(--white);
  padding: calc(var(--header-h) + 48px) 0 clamp(44px, 7vw, 84px);
  overflow: hidden;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    repeating-linear-gradient(115deg, rgba(255, 255, 255, .045) 0 1px, transparent 1px 28px),
    linear-gradient(105deg, rgba(0, 201, 167, .16), transparent 58%);
  pointer-events: none;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  right: -14%;
  top: -28%;
  width: 72%;
  height: 156%;
  background: linear-gradient(150deg, rgba(255, 106, 26, .30), rgba(108, 77, 255, .16));
  clip-path: polygon(22% 0, 100% 0, 78% 100%, 0 100%);
  pointer-events: none;
}

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

.page-faq .faq-hero .breadcrumbs {
  margin-bottom: clamp(24px, 4vw, 40px);
}

.page-faq .faq-hero .breadcrumbs ol {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0;
  font-family: var(--font-mono);
  font-size: .8125rem;
  color: rgba(255, 255, 255, .62);
}

.page-faq .faq-hero .breadcrumbs li + li::before {
  content: "/";
  margin-right: 8px;
  color: rgba(255, 255, 255, .34);
}

.page-faq .faq-hero .breadcrumbs a {
  color: var(--teal);
  text-decoration: none;
}

.page-faq .faq-hero .breadcrumbs a:hover {
  color: var(--yellow);
}

.page-faq .hero-grid {
  display: grid;
  gap: clamp(28px, 5vw, 48px);
  align-items: start;
}

.page-faq .hero-copy .eyebrow {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: .8125rem;
  letter-spacing: .08em;
  color: var(--yellow);
  border-left: 3px solid var(--orange);
  padding-left: 10px;
  margin: 0 0 16px;
}

.page-faq .hero-copy h1 {
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: clamp(2.1rem, 6vw, 3.6rem);
  line-height: 1.12;
  letter-spacing: -.01em;
  margin: 0 0 18px;
  color: var(--white);
}

.page-faq .hero-lede {
  font-size: clamp(.95rem, 2.2vw, 1.0625rem);
  line-height: 1.8;
  color: rgba(255, 255, 255, .80);
  max-width: 40em;
  margin: 0 0 26px;
}

.page-faq .hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-faq .hero-actions .btn {
  font-size: .95rem;
}

/* 三步路径卡 */
.page-faq .path-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq .path-steps li {
  position: relative;
  padding: 15px 18px 15px 60px;
  background: rgba(255, 255, 255, .07);
  border-left: 3px solid var(--teal);
  clip-path: polygon(0 0, calc(100% - 16px) 0, 100% 16px, 100% 100%, 0 100%);
  display: grid;
  gap: 3px;
}

.page-faq .path-steps li:nth-child(2) {
  border-left-color: var(--orange);
}

.page-faq .path-steps li:nth-child(3) {
  border-left-color: var(--yellow);
}

.page-faq .path-no {
  position: absolute;
  left: 18px;
  top: 16px;
  font-family: var(--font-mono);
  font-size: .85rem;
  font-weight: 700;
  color: var(--yellow);
}

.page-faq .path-steps strong {
  font-size: 1rem;
  font-weight: 700;
  color: var(--white);
}

.page-faq .path-note {
  font-size: .8125rem;
  line-height: 1.6;
  color: rgba(255, 255, 255, .62);
}

.page-faq .hero-figure {
  margin: clamp(30px, 5vw, 52px) 0 0;
  border: 1px solid rgba(255, 255, 255, .16);
  clip-path: polygon(0 0, calc(100% - 28px) 0, 100% 28px, 100% 100%, 0 100%);
  overflow: hidden;
}

.page-faq .hero-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  aspect-ratio: 12 / 7;
}

/* ---------- 正文区 ---------- */
.page-faq .faq-body {
  padding: clamp(36px, 6vw, 72px) 0 clamp(48px, 7vw, 88px);
}

.page-faq .faq-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: clamp(26px, 4vw, 40px);
}

.page-faq [data-filter-item][hidden] {
  display: none;
}

.page-faq .faq-layout {
  display: grid;
  gap: clamp(26px, 4vw, 48px);
  grid-template-columns: minmax(0, 1fr);
}

/* 索引 */
.page-faq .faq-index {
  border-top: 2px solid var(--navy);
  padding-top: 14px;
}

.page-faq .faq-index .eyebrow {
  font-family: var(--font-mono);
  font-size: .75rem;
  letter-spacing: .1em;
  color: var(--slate);
  margin: 0 0 12px;
}

.page-faq .faq-index ol {
  list-style: none;
  margin: 0;
  padding: 0 0 4px;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-index li {
  flex: 0 0 auto;
}

.page-faq .faq-index a {
  display: block;
  white-space: nowrap;
  font-family: var(--font-mono);
  font-size: .8125rem;
  color: var(--navy);
  text-decoration: none;
  padding: 8px 12px;
  background: var(--white);
  border: 1px solid var(--faq-line);
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

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

/* 分组 */
.page-faq .faq-groups {
  min-width: 0;
}

.page-faq .faq-group {
  scroll-margin-top: calc(var(--header-h) + 24px);
}

.page-faq .faq-group + .faq-group {
  margin-top: var(--faq-gap);
}

.page-faq .faq-group + .faq-group::before {
  content: "";
  display: block;
  height: 2px;
  margin-bottom: clamp(28px, 4vw, 44px);
  background: linear-gradient(90deg, var(--teal), rgba(0, 201, 167, 0));
  transform: rotate(-.5deg);
  transform-origin: left center;
}

.page-faq .group-head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  column-gap: 14px;
  align-items: baseline;
  margin-bottom: 18px;
}

.page-faq .group-no {
  grid-row: span 2;
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--orange);
  line-height: 1;
}

.page-faq .group-head h2 {
  margin: 0;
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: clamp(1.25rem, 3.4vw, 1.65rem);
  line-height: 1.3;
  color: var(--navy);
}

.page-faq .group-head p {
  grid-column: 2;
  margin: 6px 0 0;
  font-size: .9rem;
  line-height: 1.7;
  color: var(--slate);
  max-width: 44em;
}

/* 问答条目 */
.page-faq .qa {
  background: var(--white);
  border: 1px solid var(--faq-line);
  margin-top: 12px;
  clip-path: polygon(16px 0, 100% 0, 100% 100%, 0 100%, 0 16px);
  transition: border-color .25s var(--ease), box-shadow .25s var(--ease);
}

.page-faq .qa[open] {
  border-color: rgba(255, 106, 26, .48);
  box-shadow: var(--shadow-panel);
}

.page-faq .qa summary {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 16px 18px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 1rem;
  line-height: 1.6;
  color: var(--navy);
}

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

.page-faq .qa summary::after {
  content: "+";
  margin-left: auto;
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 1.15rem;
  line-height: 1.3;
  color: var(--orange);
  transition: transform .28s var(--ease);
}

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

.page-faq .qa summary:focus-visible {
  outline: 2px solid var(--violet);
  outline-offset: -2px;
}

.page-faq .q-no {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: .75rem;
  color: var(--teal);
  border: 1px solid rgba(0, 201, 167, .45);
  padding: 2px 6px;
  margin-top: 2px;
}

.page-faq .qa-body {
  padding: 0 18px 20px 18px;
  border-top: 1px dashed var(--faq-hair);
  margin-top: 2px;
}

.page-faq .steps {
  list-style: none;
  counter-reset: faqstep;
  margin: 16px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-faq .steps li {
  position: relative;
  counter-increment: faqstep;
  padding-left: 38px;
  font-size: .9375rem;
  line-height: 1.7;
  color: var(--ink);
}

.page-faq .steps li::before {
  content: counter(faqstep, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 2px;
  font-family: var(--font-mono);
  font-size: .7rem;
  font-weight: 700;
  color: var(--navy);
  background: var(--paper);
  border-left: 2px solid var(--teal);
  padding: 2px 5px;
}

.page-faq .qa-tip {
  margin: 16px 0 0;
  padding: 10px 14px;
  font-size: .85rem;
  line-height: 1.75;
  color: var(--slate);
  background: var(--paper);
  border-left: 3px solid var(--yellow);
  font-family: var(--font-mono);
  word-break: break-word;
}

.page-faq .inline-figure {
  margin: 0 0 18px;
  border: 1px solid var(--faq-line);
  background: var(--white);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 22px), calc(100% - 22px) 100%, 0 100%);
  overflow: hidden;
}

.page-faq .inline-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  aspect-ratio: 10 / 7;
}

/* ---------- 收尾 ---------- */
.page-faq .faq-cta {
  position: relative;
  background: var(--navy-deep);
  color: var(--white);
  padding: clamp(38px, 6vw, 68px) 0;
  overflow: hidden;
}

.page-faq .faq-cta::before {
  content: "";
  position: absolute;
  left: -8%;
  bottom: -60%;
  width: 62%;
  height: 190%;
  background: linear-gradient(160deg, rgba(0, 201, 167, .20), transparent 70%);
  transform: rotate(-8deg);
  pointer-events: none;
}

.page-faq .cta-inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 22px;
}

.page-faq .cta-inner .eyebrow {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: .75rem;
  letter-spacing: .1em;
  color: var(--yellow);
  margin: 0 0 10px;
}

.page-faq .cta-inner h2 {
  margin: 0 0 10px;
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: clamp(1.4rem, 4vw, 2.1rem);
  line-height: 1.24;
  color: var(--white);
}

.page-faq .cta-inner p {
  margin: 0;
  font-size: .95rem;
  line-height: 1.8;
  color: rgba(255, 255, 255, .76);
  max-width: 42em;
}

.page-faq .cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 760px) {
  .page-faq .hero-grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr);
  }

  .page-faq .cta-inner {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-layout {
    grid-template-columns: 236px minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-index {
    position: sticky;
    top: calc(var(--header-h) + 28px);
  }

  .page-faq .faq-index ol {
    display: grid;
    gap: 0;
    overflow: visible;
  }

  .page-faq .faq-index li + li {
    margin-top: 2px;
  }

  .page-faq .faq-index a {
    background: transparent;
    border: 0;
    border-left: 2px solid var(--faq-line);
    padding: 8px 10px;
    white-space: normal;
    line-height: 1.5;
  }

  .page-faq .faq-index a:hover,
  .page-faq .faq-index a:focus-visible {
    border-left-color: var(--violet);
    background: rgba(108, 77, 255, .06);
  }

  .page-faq .qa summary {
    font-size: 1.0625rem;
    padding: 18px 22px;
  }

  .page-faq .qa-body {
    padding: 0 22px 22px;
  }

  .page-faq .inline-figure {
    max-width: 640px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .qa summary::after,
  .page-faq .qa,
  .page-faq .faq-index a {
    transition: none;
  }
}