.page-faq {
  display: block;
  overflow-x: clip;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  isolation: isolate;
  padding: 34px 0 42px;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(120% 92% at 90% 0%, rgba(41, 231, 212, 0.14) 0%, rgba(41, 231, 212, 0) 56%),
    linear-gradient(155deg, var(--indigo) 0%, var(--panel) 44%, var(--bg) 100%);
}

.page-faq .faq-hero-texture {
  position: absolute;
  top: -26%;
  right: -14%;
  width: min(620px, 86%);
  height: 158%;
  z-index: -1;
  pointer-events: none;
  transform: rotate(11deg);
  background: repeating-linear-gradient(
    115deg,
    rgba(255, 106, 31, 0.16) 0 2px,
    rgba(255, 106, 31, 0) 2px 17px
  );
  -webkit-mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.9), transparent 76%);
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.9), transparent 76%);
}

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

.page-faq .faq-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 14px;
  padding: 6px 14px;
  border: 1px solid rgba(41, 231, 212, 0.42);
  border-radius: var(--r-pill);
  background: rgba(41, 231, 212, 0.08);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--cyan);
}

.page-faq .faq-hero h1 {
  margin: 0 0 16px;
  max-width: 17ch;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(30px, 8vw, 62px);
  line-height: 0.98;
  letter-spacing: -0.02em;
  color: var(--ink);
}

.page-faq .faq-lede {
  margin: 0;
  max-width: 660px;
  font-size: 16px;
  line-height: 1.75;
  color: #C4D5E3;
}

.page-faq .faq-hero-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

/* ---------- 主体栅格 ---------- */
.page-faq .faq-body {
  display: grid;
  gap: 28px;
  padding-top: 28px;
  padding-bottom: 64px;
}

/* ---------- 章节索引刻度 ---------- */
.page-faq .faq-index {
  padding: 18px 18px 16px;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background: linear-gradient(180deg, rgba(18, 43, 71, 0.72), rgba(10, 26, 43, 0.92));
}

.page-faq .faq-index-title {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--cyan);
}

.page-faq .faq-index-list {
  position: relative;
  display: grid;
  gap: 11px;
  margin: 0;
  padding: 0 0 0 16px;
  list-style: none;
}

.page-faq .faq-index-list::before {
  content: "";
  position: absolute;
  left: 4px;
  top: 4px;
  bottom: 4px;
  width: 2px;
  border-radius: 2px;
  background: linear-gradient(
    180deg,
    var(--orange) 0%,
    rgba(255, 174, 92, 0.75) 24%,
    rgba(41, 231, 212, 0.55) 58%,
    rgba(30, 58, 84, 0.9) 100%
  );
}

.page-faq .faq-index-list li {
  position: relative;
}

.page-faq .faq-index-list li::before {
  content: "";
  position: absolute;
  left: -16px;
  top: 0.62em;
  width: 10px;
  height: 2px;
  background: var(--amber);
  opacity: 0.72;
}

.page-faq .faq-index-list a {
  display: flex;
  align-items: baseline;
  gap: 8px;
  font-size: 14px;
  color: var(--muted);
  text-decoration: none;
  transition: color 0.2s var(--ease), transform 0.2s var(--ease);
}

.page-faq .faq-index-list a:hover,
.page-faq .faq-index-list a:focus-visible {
  color: var(--ink);
  transform: translateX(3px);
}

.page-faq .faq-index-list a .num {
  font-size: 12px;
  color: var(--orange);
}

.page-faq .faq-index-note {
  margin: 14px 0 0;
  font-size: 12.5px;
  line-height: 1.65;
  color: var(--muted);
}

/* ---------- 内容流与章节 ---------- */
.page-faq .faq-flow {
  display: grid;
  gap: 36px;
  min-width: 0;
}

.page-faq .faq-sec {
  scroll-margin-top: 24px;
}

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

.page-faq .faq-sec .section-head {
  margin-bottom: 20px;
}

/* ---------- 三步上手 ---------- */
.page-faq .faq-steps {
  display: grid;
  gap: 14px;
  margin: 0 0 22px;
  padding: 0;
  list-style: none;
}

.page-faq .faq-step {
  position: relative;
  padding: 20px 20px 22px;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background: linear-gradient(180deg, rgba(18, 43, 71, 0.85), rgba(10, 26, 43, 0.96));
  box-shadow: inset 0 1px 0 rgba(41, 231, 212, 0.1);
  transition: transform 0.28s var(--ease), box-shadow 0.28s var(--ease), border-color 0.28s var(--ease);
}

.page-faq .faq-step:nth-child(2) {
  background: linear-gradient(180deg, rgba(11, 59, 56, 0.82), rgba(10, 26, 43, 0.96));
}

.page-faq .faq-step:nth-child(3) {
  background: linear-gradient(180deg, rgba(74, 21, 38, 0.52), rgba(10, 26, 43, 0.96));
}

.page-faq .faq-step:hover {
  transform: translateY(-3px);
  border-color: rgba(255, 106, 31, 0.45);
  box-shadow: 0 16px 32px rgba(0, 0, 0, 0.42);
}

.page-faq .faq-step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 44px;
  height: 26px;
  padding: 0 10px;
  border-radius: var(--r-pill);
  background: var(--orange);
  color: #08131F;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.06em;
}

.page-faq .faq-step h3 {
  margin: 14px 0 8px;
  font-family: var(--font-display);
  font-size: 20px;
  line-height: 1.2;
  letter-spacing: 0.01em;
  color: var(--ink);
}

.page-faq .faq-step p {
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--muted);
}

.page-faq .faq-figure {
  margin: 0;
  aspect-ratio: 3 / 2;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background: linear-gradient(150deg, var(--green), var(--bg));
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ---------- 问答组 ---------- */
.page-faq .faq-group {
  display: grid;
  gap: 12px;
}

.page-faq .faq-q {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: var(--panel);
  transition: border-color 0.28s var(--ease), background 0.28s var(--ease), box-shadow 0.28s var(--ease);
}

.page-faq .faq-q:hover {
  border-color: rgba(41, 231, 212, 0.4);
}

.page-faq .faq-q[open] {
  border-color: rgba(255, 106, 31, 0.55);
  box-shadow: inset 3px 0 0 0 var(--orange);
  background: linear-gradient(180deg, rgba(74, 21, 38, 0.28), rgba(10, 26, 43, 0.97));
}

.page-faq .faq-q .fold-summary {
  position: relative;
  display: block;
  padding: 16px 18px 16px 46px;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.55;
  color: var(--ink);
  cursor: pointer;
  list-style: none;
}

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

.page-faq .faq-q .fold-summary::before {
  content: "+";
  position: absolute;
  left: 17px;
  top: 15px;
  width: 18px;
  height: 20px;
  font-family: var(--font-mono);
  font-size: 17px;
  line-height: 20px;
  text-align: center;
  color: var(--cyan);
}

.page-faq .faq-q[open] .fold-summary {
  font-weight: 700;
  color: #FFFFFF;
}

.page-faq .faq-q[open] .fold-summary::before {
  content: "–";
  color: var(--orange);
}

.page-faq .faq-q .fold-body {
  padding: 0 18px 18px 46px;
}

.page-faq .faq-q .fold-body p {
  margin: 0 0 12px;
  max-width: 640px;
  font-size: 15.5px;
  line-height: 1.75;
  color: #C4D5E3;
}

.page-faq .faq-q .fold-body p:last-child {
  margin-bottom: 0;
}

.page-faq .faq-q .entry-list {
  margin-top: 14px;
}

/* ---------- 下载章节 ---------- */
.page-faq .faq-download {
  display: grid;
  gap: 22px;
}

.page-faq .faq-formats {
  display: grid;
  gap: 12px;
  margin: 0 0 20px;
  padding: 0;
  list-style: none;
}

.page-faq .faq-format {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: rgba(10, 26, 43, 0.9);
}

.page-faq .faq-format-tag {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: linear-gradient(150deg, var(--orange), var(--amber));
  color: #08131F;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.page-faq .faq-format-tag--pdf {
  background: linear-gradient(150deg, var(--cyan), #1BA79A);
}

.page-faq .faq-format h3 {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-size: 18px;
  letter-spacing: 0.01em;
  color: var(--ink);
}

.page-faq .faq-format p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--muted);
}

.page-faq .faq-timeline {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-timeline li {
  display: flex;
  gap: 14px;
  align-items: baseline;
  padding: 12px 14px;
  border-left: 3px solid rgba(41, 231, 212, 0.55);
  border-radius: 0 var(--r-md) var(--r-md) 0;
  background: rgba(18, 43, 71, 0.45);
}

.page-faq .faq-timeline li:last-child {
  border-left-color: var(--orange);
  background: rgba(74, 21, 38, 0.32);
}

.page-faq .faq-time {
  flex: 0 0 auto;
  min-width: 92px;
  font-size: 13px;
  color: var(--cyan);
}

.page-faq .faq-timeline li:last-child .faq-time {
  color: var(--amber);
}

.page-faq .faq-time-label {
  font-size: 15px;
  line-height: 1.6;
  color: var(--ink);
}

.page-faq .faq-download-figure {
  margin: 0;
  aspect-ratio: 1 / 1;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background: linear-gradient(160deg, var(--green), var(--bg));
}

.page-faq .faq-download-figure img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ---------- 联系落点 ---------- */
.page-faq .faq-help-panel {
  padding: 24px 20px 26px;
  border-radius: var(--r-lg);
}

.page-faq .faq-help-text {
  margin: 0;
  max-width: 660px;
  font-size: 16px;
  line-height: 1.75;
  color: var(--ink);
}

.page-faq .faq-contact-list {
  display: grid;
  gap: 10px;
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-contact-item {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 12px;
  font-size: 15px;
  line-height: 1.6;
}

.page-faq .faq-k {
  min-width: 46px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.1em;
  color: var(--amber);
}

.page-faq .faq-v {
  color: var(--ink);
  word-break: break-word;
}

.page-faq .faq-help-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 768px) {
  .page-faq .faq-hero {
    padding: 52px 0 60px;
  }

  .page-faq .faq-lede {
    font-size: 17px;
  }

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

  .page-faq .faq-index-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 11px 20px;
  }

  .page-faq .faq-help-panel {
    padding: 30px 28px 32px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-download {
    grid-template-columns: minmax(0, 1.18fr) minmax(0, 0.82fr);
    align-items: start;
  }

  .page-faq .faq-download-figure {
    aspect-ratio: 4 / 5;
  }
}

@media (min-width: 1024px) {
  .page-faq .faq-body {
    grid-template-columns: 228px minmax(0, 1fr);
    gap: 52px;
    padding-top: 36px;
  }

  .page-faq .faq-index {
    position: sticky;
    top: 24px;
    align-self: start;
  }

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

  .page-faq .faq-flow {
    gap: 44px;
  }

  .page-faq .faq-sec + .faq-sec {
    padding-top: 42px;
  }
}

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

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

  .page-faq .faq-index-list a:hover,
  .page-faq .faq-index-list a:focus-visible {
    transform: none;
  }
}