.page-faq {
  --faq-navy: var(--lilai-navy);
  --faq-violet: var(--lilai-violet);
  --faq-orange: var(--lilai-orange);
  --faq-cyan: var(--lilai-cyan);
  --faq-light: var(--lilai-light);
  --faq-ink: var(--lilai-ink);
  --faq-border: var(--lilai-border);
  --faq-white: var(--lilai-white);
  --faq-gray: var(--lilai-gray);
  background: var(--faq-white);
}

/* ===== 英雄区 ===== */
.page-faq-hero {
  background-color: var(--faq-navy);
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.055) 1px, transparent 1px);
  background-size: 28px 28px;
  color: var(--faq-white);
  padding: 28px 0 48px;
  position: relative;
  overflow: hidden;
}

.page-faq-hero::before {
  content: "";
  position: absolute;
  right: -120px;
  top: -80px;
  width: 320px;
  height: 320px;
  background: linear-gradient(135deg, var(--faq-cyan), var(--faq-violet));
  clip-path: polygon(100% 0, 100% 100%, 0 100%);
  opacity: 0.35;
  pointer-events: none;
}

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

.page-faq-breadcrumb {
  color: rgba(255, 255, 255, 0.65);
  font-size: 14px;
  margin-bottom: 28px;
}

.page-faq-breadcrumb a {
  color: rgba(255, 255, 255, 0.8);
  text-decoration: none;
  transition: color 0.2s ease;
}

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

.page-faq-hero-grid {
  display: grid;
  gap: 32px;
}

.page-faq-hero-kicker {
  color: var(--faq-cyan);
  font-size: 12px;
  letter-spacing: 0.08em;
  margin-bottom: 12px;
}

.page-faq-hero h1 {
  font-family: var(--font-display);
  font-size: 32px;
  font-weight: 900;
  line-height: 1.3;
  margin-bottom: 16px;
}

.page-faq-hero-desc {
  color: rgba(255, 255, 255, 0.82);
  font-size: 16px;
  line-height: 1.75;
  max-width: 640px;
  margin-bottom: 24px;
}

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

.page-faq-hero .btn-ghost {
  border-color: rgba(255, 255, 255, 0.5);
  color: var(--faq-white);
  transition: border-color 0.25s ease, color 0.25s ease, background 0.25s ease;
}

.page-faq-hero .btn-ghost:hover,
.page-faq-hero .btn-ghost:focus {
  border-color: var(--faq-cyan);
  color: var(--faq-cyan);
}

.page-faq-hero-aside {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.page-faq-hero-meta {
  background: rgba(255, 255, 255, 0.08);
  border-left: 2px solid var(--faq-violet);
  padding: 12px 14px;
}

.page-faq-hero-meta:first-child {
  border-left-color: var(--faq-orange);
}

.page-faq-hero-meta:first-child .page-faq-hero-meta-value {
  color: var(--faq-orange);
}

.page-faq-hero-meta-label {
  display: block;
  color: rgba(255, 255, 255, 0.55);
  font-size: 11px;
  letter-spacing: 0.08em;
  margin-bottom: 6px;
}

.page-faq-hero-meta-value {
  color: var(--faq-white);
  font-weight: 700;
  font-size: 15px;
  line-height: 1.5;
}

/* ===== 通用版块 ===== */
.page-faq-section {
  padding: 56px 0;
}

.page-faq-section-dark {
  background-color: var(--faq-navy);
  color: var(--faq-white);
}

.page-faq-section-dark .section-title,
.page-faq-section-dark .section-desc {
  color: var(--faq-white);
}

.page-faq-section-dark .section-desc {
  color: rgba(255, 255, 255, 0.75);
}

.page-faq-section-dark .section-index {
  color: var(--faq-cyan);
}

.page-faq-section-tinted {
  background-color: var(--faq-light);
}

/* ===== 版本核对指南 ===== */
.page-faq-guide-grid {
  display: grid;
  gap: 32px;
  margin-top: 32px;
}

.page-faq-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  border-left: 2px solid var(--faq-border);
  margin-left: 12px;
}

.page-faq-step {
  position: relative;
  padding: 0 0 28px 24px;
}

.page-faq-step:last-child {
  padding-bottom: 0;
}

.page-faq-step-index {
  position: absolute;
  left: -13px;
  top: 0;
  background: var(--faq-white);
  border: 2px solid var(--faq-violet);
  color: var(--faq-violet);
  font-size: 11px;
  font-weight: 700;
  padding: 2px 6px;
  letter-spacing: 0.06em;
  line-height: 1.4;
}

.page-faq-step-body h3 {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 900;
  color: var(--faq-navy);
  margin: 0 0 6px;
}

.page-faq-step-body p {
  font-size: 15px;
  line-height: 1.7;
  color: var(--faq-gray);
  margin: 0;
}

.page-faq-step-body a {
  color: var(--faq-violet);
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 2px;
}

.page-faq-guide-visual {
  position: relative;
}

.page-faq-guide-img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: var(--radius);
  border: 1px solid var(--faq-border);
}

.page-faq-guide-coord {
  display: inline-block;
  margin-top: 12px;
  color: var(--faq-violet);
  font-size: 12px;
  letter-spacing: 0.08em;
}

/* ===== 适配清单查询 ===== */
.page-faq-compat-grid {
  display: grid;
  gap: 32px;
  margin-top: 32px;
}

.page-faq-compat-table-wrap {
  background: var(--faq-white);
  border: 1px solid rgba(255, 255, 255, 0.12);
  padding: 16px;
  box-shadow: 0 12px 32px rgba(7, 26, 43, 0.25);
}

.page-faq-compat-table {
  width: 100%;
  border-collapse: collapse;
}

.page-faq-compat-table th,
.page-faq-compat-table td {
  text-align: left;
  padding: 12px 10px;
  border-bottom: 1px solid var(--faq-border);
  font-size: 14px;
}

.page-faq-compat-table th {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 13px;
  letter-spacing: 0.05em;
  color: var(--faq-navy);
  border-bottom: 2px solid var(--faq-violet);
}

.page-faq-compat-table td {
  color: var(--faq-gray);
}

.page-faq-compat-table tr:last-child td {
  border-bottom: 0;
}

.page-faq-compat-note {
  margin: 14px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--faq-gray);
}

.page-faq-compat-aside {
  position: relative;
}

.page-faq-compat-img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: var(--radius);
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.page-faq-compat-badge {
  margin-top: 14px;
  background: var(--faq-orange);
  color: var(--faq-white);
  padding: 10px 18px 10px 14px;
  display: inline-flex;
  align-items: center;
  gap: 14px;
  clip-path: polygon(0 0, calc(100% - 12px) 0, 100% 50%, calc(100% - 12px) 100%, 0 100%);
}

.page-faq-compat-badge-label {
  font-size: 12px;
  letter-spacing: 0.08em;
}

.page-faq-compat-badge-value {
  font-size: 14px;
  font-weight: 700;
  padding-right: 4px;
}

/* ===== FAQ 手风琴 ===== */
.page-faq-list {
  margin-top: 32px;
}

.page-faq-common-tag {
  display: inline-block;
  background: var(--faq-orange);
  color: var(--faq-white);
  font-size: 12px;
  font-weight: 700;
  padding: 3px 12px 3px 8px;
  margin-left: 10px;
  vertical-align: middle;
  clip-path: polygon(0 0, calc(100% - 6px) 0, 100% 50%, calc(100% - 6px) 100%, 0 100%);
  letter-spacing: 0.05em;
}

.page-faq-item {
  background: var(--faq-white);
  border: 1px solid var(--faq-border);
  border-left: 4px solid var(--faq-violet);
  margin-bottom: 16px;
  transition: background 0.25s ease, box-shadow 0.25s ease;
}

.page-faq-item:hover {
  background: var(--faq-light);
  box-shadow: 0 4px 16px rgba(11, 29, 58, 0.08);
}

.page-faq-item:focus-within {
  border-left-color: var(--faq-orange);
  box-shadow: 0 4px 16px rgba(255, 90, 0, 0.12);
}

.page-faq-item-btn {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 12px;
  background: none;
  border: 0;
  cursor: pointer;
  padding: 14px 16px;
  text-align: left;
  font-family: var(--font-body);
  color: var(--faq-navy);
  transition: color 0.25s ease;
}

.page-faq-item-btn:hover {
  color: var(--faq-violet);
}

.page-faq-item-code {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  color: var(--faq-violet);
  background: rgba(138, 43, 226, 0.1);
  padding: 3px 8px;
  border-radius: var(--radius);
  flex-shrink: 0;
}

.page-faq-item-title {
  flex: 1;
  font-size: 15px;
  font-weight: 700;
  color: var(--faq-navy);
  line-height: 1.5;
}

.page-faq-item .panel-icon {
  position: relative;
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  border: 1px solid var(--faq-violet);
  border-radius: 50%;
  transition: transform 0.3s ease;
}

.page-faq-item .panel-icon::before,
.page-faq-item .panel-icon::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  background: var(--faq-violet);
  transform: translate(-50%, -50%);
}

.page-faq-item .panel-icon::before {
  width: 10px;
  height: 2px;
}

.page-faq-item .panel-icon::after {
  width: 2px;
  height: 10px;
}

.page-faq-item .page-faq-item-btn[aria-expanded="true"] .panel-icon::after {
  display: none;
}

.page-faq-item[data-open] .panel-icon {
  transform: rotate(45deg);
}

.page-faq-item-content {
  border-top: 1px dashed var(--faq-border);
  padding: 16px;
  color: var(--faq-gray);
  font-size: 15px;
  line-height: 1.8;
}

.page-faq-item-content p:first-child {
  margin-top: 0;
}

.page-faq-item-content p:last-child {
  margin-bottom: 0;
}

.page-faq-answer-list {
  margin: 0;
  padding-left: 20px;
}

.page-faq-answer-list li {
  margin-bottom: 6px;
}

.page-faq-answer-list li:last-child {
  margin-bottom: 0;
}

.page-faq-answer-list a {
  color: var(--faq-violet);
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 2px;
}

/* ===== 会员权益 ===== */
.page-faq-member-grid {
  display: grid;
  gap: 20px;
  margin-top: 32px;
}

.page-faq-member-card {
  background: var(--faq-white);
  border: 1px solid var(--faq-border);
  border-top: 2px solid var(--faq-violet);
  padding: 24px 20px;
  position: relative;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.page-faq-member-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(11, 29, 58, 0.1);
}

.page-faq-member-num {
  display: inline-block;
  font-size: 14px;
  font-weight: 700;
  color: var(--faq-orange);
  margin-bottom: 12px;
}

.page-faq-member-card h3 {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 900;
  color: var(--faq-navy);
  margin-bottom: 10px;
}

.page-faq-member-card p {
  font-size: 15px;
  line-height: 1.75;
  color: var(--faq-gray);
  margin: 0;
}

.page-faq-member-card a {
  color: var(--faq-violet);
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 2px;
}

/* ===== 联系客服 ===== */
.page-faq-contact {
  background-color: var(--faq-ink);
  color: var(--faq-white);
  padding: 56px 0;
}

.page-faq-contact-inner {
  display: grid;
  gap: 32px;
}

.page-faq-contact .section-title {
  color: var(--faq-white);
}

.page-faq-contact .section-desc {
  color: rgba(255, 255, 255, 0.75);
}

.page-faq-contact .section-index {
  color: var(--faq-cyan);
}

.page-faq-contact-list {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-faq-contact-list li {
  display: flex;
  flex-direction: column;
  gap: 4px;
  background: rgba(255, 255, 255, 0.06);
  padding: 14px 16px;
  border-left: 2px solid var(--faq-violet);
}

.page-faq-contact-label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.07em;
  color: var(--faq-cyan);
}

.page-faq-contact-value {
  font-size: 15px;
  line-height: 1.65;
  color: rgba(255, 255, 255, 0.9);
  word-break: break-all;
}

.page-faq-contact-card {
  background: var(--faq-navy);
  border: 1px solid rgba(255, 255, 255, 0.1);
  padding: 20px 24px;
}

.page-faq-contact-card-title {
  color: var(--faq-cyan);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  margin-bottom: 20px;
}

.page-faq-contact-dl {
  display: grid;
  gap: 12px;
  margin: 0;
}

.page-faq-contact-dl div {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  padding-bottom: 8px;
}

.page-faq-contact-dl dt {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.65);
}

.page-faq-contact-dl dd {
  margin: 0;
  font-weight: 700;
  font-size: 14px;
  color: var(--faq-white);
  text-align: right;
}

/* ===== 桌面端 ===== */
@media (min-width: 768px) {
  .page-faq-hero {
    padding: 40px 0 64px;
  }

  .page-faq-hero h1 {
    font-size: 44px;
  }

  .page-faq-hero-grid {
    grid-template-columns: 1fr 280px;
    align-items: start;
  }

  .page-faq-hero-aside {
    grid-template-columns: 1fr;
    gap: 12px;
  }

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

  .page-faq-guide-grid {
    grid-template-columns: 1fr 1fr;
    align-items: center;
  }

  .page-faq-guide-img {
    max-height: 400px;
  }

  .page-faq-compat-grid {
    grid-template-columns: 1fr 1fr;
    align-items: start;
  }

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

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

  .page-faq-contact-inner {
    grid-template-columns: 3fr 2fr;
    gap: 48px;
    align-items: start;
  }
}

@media (min-width: 1024px) {
  .page-faq-hero h1 {
    font-size: 52px;
  }

  .page-faq-install-grid,
  .page-faq-account-grid {
    grid-template-columns: 1fr 1fr;
    gap: 20px;
  }
}