.page-faq {
  --faq-line: rgba(255, 255, 255, 0.08);
  --faq-grid-line: rgba(255, 255, 255, 0.04);
  --faq-text-weak: rgba(255, 255, 255, 0.62);
  background: linear-gradient(180deg, var(--color-abyss) 0%, var(--color-space) 45%, var(--color-night) 100%);
  color: var(--color-white);
  min-height: 100vh;
  overflow-x: hidden;
}

.page-faq .container {
  padding-left: 20px;
  padding-right: 20px;
}

/* ========== Hero ========== */
.page-faq .faq-hero {
  position: relative;
  padding: 40px 0 56px;
  border-bottom: 1px solid var(--faq-line);
  background-image:
    linear-gradient(var(--faq-grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--faq-grid-line) 1px, transparent 1px);
  background-size: 48px 48px, 48px 48px;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  top: -80px;
  right: -140px;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle at center, rgba(123, 47, 247, 0.22), transparent 70%);
  pointer-events: none;
}

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

.page-faq .faq-hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  margin-top: 40px;
}

.page-faq .faq-hero-index {
  display: flex;
  flex-direction: row;
  align-items: baseline;
  gap: 12px;
  border-bottom: 1px solid var(--faq-line);
  padding-bottom: 12px;
}

.page-faq .faq-hero-index-main {
  font-family: var(--font-accent);
  font-size: 28px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--color-cyan);
}

.page-faq .faq-hero-index-sub {
  font-family: var(--font-accent);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: rgba(255, 255, 255, 0.45);
}

.page-faq .faq-hero-titles .eyebrow {
  margin-bottom: 8px;
}

.page-faq .faq-hero h1 {
  margin: 0 0 16px;
  font-size: 36px;
  line-height: 1.15;
  font-weight: 100;
  letter-spacing: -0.02em;
}

.page-faq .faq-hero .lede {
  color: var(--faq-text-weak);
  max-width: 520px;
  margin: 0;
  font-size: 16px;
  line-height: 1.7;
}

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

.page-faq .faq-keyword-tag {
  text-decoration: none;
  transition: border-color 0.25s ease, color 0.25s ease;
}

.page-faq .faq-keyword-tag:hover {
  border-color: var(--color-cyan);
  color: var(--color-cyan);
}

/* ========== Catalog ========== */
.page-faq .faq-catalog {
  padding: 64px 0 72px;
}

.page-faq .faq-catalog-head {
  margin-bottom: 36px;
}

.page-faq .faq-catalog-desc {
  color: var(--faq-text-weak);
  font-size: 14px;
  max-width: 400px;
  margin: 8px 0 0;
}

.page-faq .faq-catalog-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  align-items: start;
}

.page-faq .faq-toc {
  border: 1px solid var(--faq-line);
  background: rgba(255, 255, 255, 0.02);
}

.page-faq .faq-toc-item {
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .faq-toc-item:last-child {
  border-bottom: 0;
}

.page-faq .faq-toc-item summary {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 18px 16px;
  cursor: pointer;
  list-style: none;
  font-size: 15px;
  font-weight: 700;
  color: rgba(255, 255, 255, 0.92);
  transition: background 0.25s ease;
}

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

.page-faq .faq-toc-item summary:hover {
  background: rgba(255, 255, 255, 0.03);
}

.page-faq .faq-toc-item summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-accent);
  font-size: 18px;
  color: var(--color-cyan);
  line-height: 1;
}

.page-faq .faq-toc-item[open] summary {
  border-bottom: 1px solid var(--faq-line);
  background: linear-gradient(90deg, rgba(123, 47, 247, 0.1), transparent);
}

.page-faq .faq-toc-item[open] summary::after {
  content: "−";
}

.page-faq .faq-toc-num {
  font-family: var(--font-accent);
  font-size: 12px;
  color: var(--color-cyan);
  font-weight: 400;
  min-width: 28px;
}

.page-faq .faq-toc-sub {
  margin: 0;
  padding: 14px 16px 16px 56px;
  list-style: none;
}

.page-faq .faq-toc-sub li + li {
  margin-top: 10px;
}

.page-faq .faq-toc-sub a {
  color: rgba(255, 255, 255, 0.64);
  font-size: 14px;
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.2s ease, border-color 0.2s ease;
}

.page-faq .faq-toc-sub a:hover {
  color: var(--color-cyan);
  border-color: var(--color-cyan);
}

/* ========== Catalog Cards ========== */
.page-faq .faq-catalog-cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.page-faq .faq-card {
  position: relative;
  border: 1px solid var(--faq-line);
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.04), rgba(255, 255, 255, 0.01));
  padding: 24px 22px 26px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.page-faq .faq-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--color-violet), var(--color-cyan));
  opacity: 0.82;
}

.page-faq .faq-card h3 {
  margin: 0;
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.page-faq .faq-card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: rgba(255, 255, 255, 0.7);
}

.page-faq .faq-card a {
  color: var(--color-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(0, 207, 253, 0.35);
  transition: border-color 0.2s ease;
}

.page-faq .faq-card a:hover {
  border-color: var(--color-cyan);
}

.page-faq .faq-card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

.page-faq .faq-card-count {
  font-family: var(--font-accent);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--color-gold);
}

.page-faq .faq-card-img {
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  display: block;
  border: 1px solid var(--faq-line);
  margin-top: 8px;
}

/* ========== Hot Questions ========== */
.page-faq .faq-hot {
  padding: 64px 0 80px;
  border-top: 1px solid var(--faq-line);
  background: rgba(11, 29, 58, 0.32);
}

.page-faq .faq-hot-head {
  margin-bottom: 36px;
}

.page-faq .faq-hot-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  align-items: start;
}

.page-faq .faq-hot-list {
  display: flex;
  flex-direction: column;
}

.page-faq .faq-q-item {
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .faq-q-item:first-child {
  border-top: 1px solid var(--faq-line);
}

.page-faq .faq-q-item summary {
  list-style: none;
  cursor: pointer;
  padding: 20px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  font-size: 15px;
  font-weight: 700;
  color: rgba(255, 255, 255, 0.92);
  transition: color 0.2s ease;
}

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

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

.page-faq .faq-q-item summary::after {
  content: "+";
  font-family: var(--font-accent);
  font-size: 20px;
  color: var(--color-violet);
  line-height: 1;
  transition: transform 0.25s ease;
}

.page-faq .faq-q-item[open] summary {
  color: var(--color-cyan);
}

.page-faq .faq-q-item[open] summary::after {
  content: "−";
}

.page-faq .faq-q-answer {
  padding: 0 0 20px;
  max-width: 640px;
}

.page-faq .faq-q-answer p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: rgba(255, 255, 255, 0.66);
}

.page-faq .faq-q-answer a {
  color: var(--color-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(0, 207, 253, 0.35);
  transition: border-color 0.2s ease;
}

.page-faq .faq-q-answer a:hover {
  border-color: var(--color-cyan);
}

.page-faq .faq-hot-figure {
  margin: 0;
  border: 1px solid var(--faq-line);
  padding: 12px;
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.05), transparent);
}

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

.page-faq .faq-hot-figure figcaption {
  padding: 14px 4px 4px;
  font-size: 13px;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.5);
}

/* ========== Support ========== */
.page-faq .faq-support {
  padding: 40px 0 88px;
}

.page-faq .faq-support-inner {
  display: flex;
  flex-direction: column;
  gap: 28px;
  padding: 32px 28px;
}

.page-faq .faq-support-copy {
  max-width: 520px;
}

.page-faq .faq-support-copy h2 {
  margin: 8px 0 12px;
  font-size: 28px;
  font-weight: 100;
  letter-spacing: -0.01em;
}

.page-faq .faq-support-copy p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.7);
}

.page-faq .faq-support-list {
  margin-top: 18px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  border-top: 1px solid var(--faq-line);
  padding-top: 18px;
}

.page-faq .faq-support-list .contact-row {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin: 0;
}

.page-faq .faq-support-list .contact-row span {
  min-width: 48px;
  font-family: var(--font-accent);
  font-size: 12px;
  color: var(--color-cyan);
  letter-spacing: 0.04em;
}

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

@media (min-width: 768px) {
  .page-faq .container {
    padding-left: 32px;
    padding-right: 32px;
  }

  .page-faq .faq-hero {
    padding: 48px 0 64px;
  }

  .page-faq .faq-hero-grid {
    grid-template-columns: 140px 1fr;
    gap: 40px;
    margin-top: 48px;
  }

  .page-faq .faq-hero-index {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
    border-bottom: 0;
    padding-bottom: 0;
    border-right: 1px solid var(--faq-line);
    padding-right: 20px;
  }

  .page-faq .faq-hero h1 {
    font-size: 48px;
  }
}

@media (min-width: 980px) {
  .page-faq .faq-catalog {
    padding: 80px 0;
  }

  .page-faq .faq-catalog-head {
    display: flex;
    flex-direction: row;
    align-items: flex-end;
    justify-content: space-between;
    gap: 32px;
  }

  .page-faq .faq-catalog-desc {
    margin: 0 0 4px;
    text-align: right;
  }

  .page-faq .faq-catalog-grid {
    grid-template-columns: 300px 1fr;
    gap: 48px;
  }

  .page-faq .faq-sidebar {
    position: sticky;
    top: calc(var(--header-h) + 24px);
  }

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

  .page-faq .faq-card--wide {
    grid-column: 1 / -1;
  }

  .page-faq .faq-card {
    padding: 28px 26px 30px;
  }

  .page-faq .faq-hot-layout {
    grid-template-columns: 1fr 320px;
    gap: 48px;
  }

  .page-faq .faq-hot-list {
    grid-row: 1;
  }

  .page-faq .faq-hot-figure {
    grid-column: 2;
    grid-row: 1;
    position: sticky;
    top: calc(var(--header-h) + 24px);
  }

  .page-faq .faq-support {
    padding: 48px 0 96px;
  }

  .page-faq .faq-support-inner {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    padding: 44px 48px;
    gap: 40px;
  }

  .page-faq .faq-support-actions {
    flex-direction: column;
    min-width: 180px;
  }
}

@media (min-width: 1280px) {
  .page-faq .container {
    padding-left: 0;
    padding-right: 0;
  }

  .page-faq .faq-hero-grid {
    grid-template-columns: 180px 1fr;
    gap: 56px;
  }
}