.page-faq {
  --faq-green: #2E7D32;
  --faq-purple: #5E35B1;
  --faq-purple-deep: #4527A0;
  --faq-orange: #FF5722;
  --faq-deep-green: #1B3B1F;
  --faq-dark: #1A1A2E;
  --faq-moon: #F5F5F5;
  --faq-white: #FFFFFF;
  --faq-amber: #FFB300;
  --faq-line: rgba(27, 59, 31, 0.12);
  --faq-accent-font: "Space Mono", "Courier New", monospace;
  --faq-heading-font: "Archivo Black", "Helvetica Neue", Arial, sans-serif;
  --faq-body-font: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --faq-transition: 0.35s cubic-bezier(0.22, 1, 0.36, 1);
  overflow-x: hidden;
  background: var(--faq-moon);
  color: var(--faq-deep-green);
}

.page-faq .container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.page-faq .breadcrumb {
  padding-top: 96px;
  padding-bottom: 28px;
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--faq-accent-font);
  font-size: 14px;
  letter-spacing: 0.05em;
}

.page-faq .breadcrumb-link {
  color: var(--faq-purple);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.25s ease, color 0.25s ease;
}

.page-faq .breadcrumb-link:hover {
  color: var(--faq-orange);
  border-color: var(--faq-orange);
}

.page-faq .breadcrumb-sep {
  color: rgba(94, 53, 177, 0.4);
}

.page-faq .breadcrumb-current {
  color: var(--faq-deep-green);
  font-weight: 700;
}

/* ===== Hero ===== */
.page-faq .faq-hero {
  background: linear-gradient(135deg, var(--faq-dark) 0%, var(--faq-deep-green) 55%, var(--faq-green) 100%);
  border-radius: 0 0 40px 40px;
  padding: 60px 0 72px;
  position: relative;
  overflow: hidden;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='600' height='600' viewBox='0 0 600 600' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Ccircle cx='520' cy='80' r='300' stroke='%23FF5722' stroke-opacity='0.25' stroke-width='1'/%3E%3Ccircle cx='520' cy='80' r='240' stroke='%235E35B1' stroke-opacity='0.35' stroke-width='1'/%3E%3C/svg%3E") no-repeat right top / 60% auto;
  pointer-events: none;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  bottom: -60px;
  right: -40px;
  width: 280px;
  height: 280px;
  background: linear-gradient(135deg, transparent 40%, var(--faq-purple));
  opacity: 0.3;
  border-radius: 50%;
  filter: blur(60px);
  pointer-events: none;
}

.page-faq .faq-hero-inner {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.page-faq .faq-hero-index {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.page-faq .tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--faq-accent-font);
  font-size: 13px;
  letter-spacing: 0.18em;
  color: var(--faq-amber);
  text-transform: uppercase;
  padding: 4px 0;
}

.page-faq .tag::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--faq-orange);
  box-shadow: 0 0 8px var(--faq-orange);
}

.page-faq .faq-hero-desc {
  font-family: var(--faq-accent-font);
  font-size: 14px;
  color: rgba(245, 245, 245, 0.7);
  margin: 0;
  letter-spacing: 0.08em;
}

.page-faq .faq-hero-title {
  font-family: var(--faq-heading-font);
  font-size: clamp(2.5rem, 8vw, 4.5rem);
  line-height: 1.05;
  color: var(--faq-white);
  text-transform: uppercase;
  font-style: italic;
  letter-spacing: -0.02em;
  margin: 0;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.page-faq .faq-hero-sub {
  font-family: var(--faq-accent-font);
  font-size: clamp(0.9rem, 2.5vw, 1.15rem);
  font-style: normal;
  font-weight: 400;
  letter-spacing: 0.5em;
  color: var(--faq-amber);
  text-transform: uppercase;
  margin-top: 12px;
}

/* ===== Shared section head ===== */
.page-faq .section {
  padding: 56px 0;
}

.page-faq .faq-section-head {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 36px;
  border-bottom: 1px solid var(--faq-line);
  padding-bottom: 20px;
}

.page-faq .chapter-index {
  display: flex;
  align-items: center;
  gap: 16px;
}

.page-faq .chapter-num {
  font-family: var(--faq-accent-font);
  font-size: clamp(2.2rem, 5vw, 3.2rem);
  font-weight: 700;
  color: var(--faq-orange);
  line-height: 1;
  letter-spacing: -0.04em;
}

.page-faq .chapter-title {
  font-family: var(--faq-heading-font);
  font-size: clamp(1.1rem, 3vw, 1.5rem);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--faq-deep-green);
}

.page-faq .faq-section-note {
  font-family: var(--faq-body-font);
  font-size: 14px;
  color: rgba(27, 59, 31, 0.65);
  margin: 0;
}

/* ===== Hot FAQ layout: asymmetric ===== */
.page-faq .grid-narrow {
  display: grid;
  grid-template-columns: 1fr;
  gap: 36px;
}

.page-faq .faq-index-col {
  background: var(--faq-white);
  border: 1px solid var(--faq-line);
  border-radius: 20px;
  padding: 24px;
  box-shadow: 0 4px 20px rgba(27, 59, 31, 0.06);
  align-self: start;
  position: sticky;
  top: 96px;
}

.page-faq .faq-index-title {
  font-family: var(--faq-accent-font);
  font-size: 13px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--faq-purple);
  margin: 0 0 16px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--faq-purple);
  display: inline-block;
}

.page-faq .faq-index-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
}

.page-faq .faq-index-item + .faq-index-item {
  border-top: 1px solid rgba(27, 59, 31, 0.06);
}

.page-faq .faq-index-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 4px;
  text-decoration: none;
  color: var(--faq-deep-green);
  font-size: 15px;
  font-weight: 500;
  transition: color 0.25s ease, transform 0.25s ease;
}

.page-faq .faq-index-link:hover {
  color: var(--faq-orange);
  transform: translateX(4px);
}

.page-faq .faq-index-num {
  font-family: var(--faq-accent-font);
  font-size: 14px;
  color: var(--faq-purple);
  min-width: 28px;
}

.page-faq .faq-index-link:hover .faq-index-num {
  color: var(--faq-orange);
}

.page-faq .faq-answer-col {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.page-faq .faq-item {
  background: var(--faq-white);
  border-left: 4px solid transparent;
  border-radius: 0 16px 16px 0;
  padding: 28px 24px;
  box-shadow: 0 2px 12px rgba(27, 59, 31, 0.04);
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
  scroll-margin-top: 100px;
}

.page-faq .faq-item:hover {
  border-left-color: var(--faq-orange);
  box-shadow: 0 8px 32px rgba(27, 59, 31, 0.1);
}

.page-faq .faq-item + .faq-item {
  margin-top: 16px;
}

.page-faq .faq-question {
  font-family: var(--faq-heading-font);
  font-size: 1.15rem;
  color: var(--faq-deep-green);
  margin: 0 0 12px;
  display: flex;
  align-items: baseline;
  gap: 12px;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  line-height: 1.4;
}

.page-faq .faq-q-num {
  font-family: var(--faq-accent-font);
  font-size: 14px;
  color: var(--faq-orange);
  min-width: 28px;
}

.page-faq .faq-answer {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: rgba(27, 59, 31, 0.82);
}

/* ===== Guide cards ===== */
.page-faq .faq-guides {
  background: var(--faq-white);
  border-top: 1px solid var(--faq-line);
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .faq-guide-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.page-faq .faq-guide-card {
  background: var(--faq-moon);
  border: 1px solid var(--faq-line);
  border-radius: 20px;
  padding: 24px;
  transition: transform 0.35s ease, box-shadow 0.35s ease;
}

.page-faq .faq-guide-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 10px 32px rgba(94, 53, 177, 0.1);
}

.page-faq .faq-guide-card-head {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 16px;
}

.page-faq .faq-guide-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--faq-green), var(--faq-deep-green));
  flex-shrink: 0;
}

.page-faq .faq-guide-icon svg {
  width: 24px;
  height: 24px;
  fill: none;
  stroke: var(--faq-white);
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.page-faq .faq-guide-card:nth-child(2) .faq-guide-icon {
  background: linear-gradient(135deg, var(--faq-purple), var(--faq-purple-deep));
}

.page-faq .faq-guide-card:nth-child(3) .faq-guide-icon {
  background: linear-gradient(135deg, var(--faq-orange), #d84315);
}

.page-faq .faq-guide-card:nth-child(4) .faq-guide-icon {
  background: linear-gradient(135deg, var(--faq-dark), var(--faq-purple-deep));
}

.page-faq .faq-guide-card-title {
  font-family: var(--faq-heading-font);
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin: 0 0 6px;
  color: var(--faq-deep-green);
}

.page-faq .faq-guide-card-desc {
  font-size: 14px;
  color: rgba(27, 59, 31, 0.6);
  margin: 0;
  line-height: 1.5;
}

.page-faq .faq-details {
  border-top: 1px solid var(--faq-line);
  padding-top: 4px;
}

.page-faq .faq-details-summary {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  font-family: var(--faq-accent-font);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--faq-purple);
  font-weight: 700;
  padding: 14px 0 4px;
  list-style: none;
  user-select: none;
  transition: color 0.25s ease;
}

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

.page-faq .faq-details-summary::after {
  content: "+";
  margin-left: auto;
  font-size: 20px;
  line-height: 1;
  color: var(--faq-orange);
  transition: transform 0.3s ease;
  flex-shrink: 0;
}

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

.page-faq .faq-details-summary:hover {
  color: var(--faq-orange);
}

.page-faq .faq-details-body {
  padding: 16px 0 4px;
  animation: faq-expand 0.4s cubic-bezier(0.22, 1, 0.36, 1);
}

@keyframes faq-expand {
  from {
    opacity: 0;
    transform: translateY(-8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.page-faq .faq-steps {
  margin: 0;
  padding-left: 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.page-faq .faq-steps li {
  font-size: 15px;
  line-height: 1.7;
  color: rgba(27, 59, 31, 0.85);
}

.page-faq .faq-tip {
  margin: 14px 0 0;
  font-size: 13px;
  color: var(--faq-purple);
  background: rgba(94, 53, 177, 0.06);
  border-radius: 10px;
  padding: 12px 14px;
  line-height: 1.65;
}

.page-faq .faq-details-lead {
  font-size: 15px;
  line-height: 1.7;
  color: rgba(27, 59, 31, 0.85);
  margin: 0 0 12px;
}

.page-faq .faq-feature-list {
  margin: 0;
  padding-left: 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.page-faq .faq-feature-list li {
  font-size: 15px;
  line-height: 1.7;
  color: rgba(27, 59, 31, 0.85);
}

.page-faq .faq-data-list {
  margin: 0;
  display: flex;
  flex-direction: column;
}

.page-faq .faq-data-row {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 10px 0;
  border-bottom: 1px dashed var(--faq-line);
}

.page-faq .faq-data-row:last-child {
  border-bottom: none;
}

.page-faq .faq-data-row dt {
  font-family: var(--faq-accent-font);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--faq-purple);
}

.page-faq .faq-data-row dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.6;
  color: var(--faq-deep-green);
}

/* ===== V4 feature ===== */
.page-faq .faq-v4 {
  background: linear-gradient(120deg, var(--faq-dark) 0%, var(--faq-purple-deep) 75%, var(--faq-purple) 100%);
  padding: 72px 0;
  position: relative;
  overflow: hidden;
}

.page-faq .faq-v4::before {
  content: "";
  position: absolute;
  top: -100px;
  left: -100px;
  width: 320px;
  height: 320px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 82, 33, 0.35), transparent 65%);
  pointer-events: none;
}

.page-faq .faq-v4-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  align-items: center;
}

.page-faq .faq-v4-chapter .chapter-title {
  color: var(--faq-white);
}

.page-faq .faq-v4-chapter .chapter-num {
  color: var(--faq-amber);
}

.page-faq .faq-v4-desc {
  color: rgba(245, 245, 245, 0.85);
  font-size: 15px;
  line-height: 1.8;
  margin: 14px 0 0;
}

.page-faq .faq-v4-media {
  margin: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}

.page-faq .media-frame {
  position: relative;
  overflow: hidden;
  border-radius: 20px;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.12), rgba(255, 255, 255, 0.02));
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.page-faq .media-frame img {
  max-width: 100%;
  height: auto;
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.page-faq .media-frame:hover img {
  transform: scale(1.02);
}

.page-faq .media-frame-9x16 {
  aspect-ratio: 9 / 16;
  max-width: 260px;
  width: 100%;
  border-radius: 28px;
}

.page-faq .media-frame-1x1 {
  aspect-ratio: 1 / 1;
  width: 120px;
  height: 120px;
  border-radius: 50%;
  border: 2px solid rgba(255, 255, 255, 0.3);
}

.page-faq .faq-figcaption {
  font-family: var(--faq-accent-font);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: rgba(245, 245, 245, 0.55);
  text-align: center;
}

/* ===== Contact ===== */
.page-faq .faq-contact {
  padding: 72px 0;
  background: var(--faq-moon);
}

.page-faq .faq-contact-inner {
  max-width: 1000px;
}

.page-faq .faq-contact-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 32px;
  background: var(--faq-white);
  border-radius: 28px;
  padding: 40px 28px;
  box-shadow: 0 12px 48px rgba(27, 59, 31, 0.14);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.page-faq .faq-contact-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--faq-green), var(--faq-purple), var(--faq-orange));
}

.page-faq .faq-contact-media {
  flex-shrink: 0;
}

.page-faq .faq-contact-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  width: 100%;
}

.page-faq .faq-contact-chapter {
  justify-content: center;
}

.page-faq .faq-contact-desc {
  font-size: 15px;
  line-height: 1.8;
  color: rgba(27, 59, 31, 0.8);
  margin: 0;
  max-width: 560px;
}

.page-faq .faq-contact-list {
  margin: 8px 0 0;
  display: flex;
  flex-direction: column;
  gap: 0;
  width: 100%;
  max-width: 480px;
  text-align: left;
}

.page-faq .faq-contact-row {
  display: flex;
  flex-direction: column;
  padding: 10px 0;
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .faq-contact-row:last-child {
  border-bottom: none;
}

.page-faq .faq-contact-row dt {
  font-family: var(--faq-accent-font);
  font-size: 12px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--faq-purple);
  margin-bottom: 4px;
}

.page-faq .faq-contact-row dd {
  margin: 0;
  font-size: 16px;
  font-weight: 600;
  color: var(--faq-deep-green);
  word-break: break-all;
}

.page-faq .faq-contact-row dd a {
  color: var(--faq-orange);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.25s ease;
}

.page-faq .faq-contact-row dd a:hover {
  border-color: var(--faq-orange);
}

.page-faq .faq-contact-note {
  font-size: 13px;
  color: rgba(27, 59, 31, 0.52);
  margin: 8px 0 0;
  line-height: 1.6;
  max-width: 520px;
}

/* ===== Responsive ===== */
@media (min-width: 768px) {
  .page-faq .faq-grid-narrow {
    grid-template-columns: 280px 1fr;
  }

  .page-faq .faq-guide-grid {
    grid-template-columns: 1fr 1fr;
    gap: 24px;
  }

  .page-faq .faq-guide-card {
    padding: 28px;
  }

  .page-faq .faq-hero {
    padding: 72px 0 88px;
  }

  .page-faq .faq-v4-inner {
    grid-template-columns: 1.2fr 0.8fr;
    gap: 48px;
  }

  .page-faq .faq-contact-card {
    flex-direction: row;
    text-align: left;
    padding: 44px 48px;
  }

  .page-faq .faq-contact-content {
    align-items: flex-start;
  }

  .page-faq .faq-contact-chapter {
    justify-content: flex-start;
  }

  .page-faq .faq-data-row {
    flex-direction: row;
    justify-content: space-between;
    align-items: baseline;
    padding: 12px 0;
    gap: 20px;
  }

  .page-faq .faq-data-row dt {
    flex-shrink: 0;
    min-width: 120px;
  }

  .page-faq .faq-contact-list {
    max-width: 100%;
  }
}

@media (min-width: 1024px) {
  .page-faq .grid-narrow {
    grid-template-columns: 300px 1fr;
    gap: 48px;
  }

  .page-faq .faq-answer-col {
    padding-top: 0;
  }

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

  .page-faq .faq-item {
    padding: 32px 32px 32px 28px;
  }

  .page-faq .faq-contact-card {
    padding: 52px 60px;
  }

  .page-faq .faq-contact-frame {
    width: 140px;
    height: 140px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-details-body {
    animation: none;
  }

  .page-faq .faq-guide-card {
    transition: none;
  }

  .page-faq .faq-index-link {
    transition: none;
  }

  .page-faq .faq-item {
    transition: none;
  }

  .page-faq .media-frame img {
    transition: none;
  }
}