.page-faq {
  --faq-grid-line: rgba(199, 211, 224, 0.06);
  --faq-panel: rgba(17, 41, 92, 0.6);
  --faq-panel-deep: rgba(11, 16, 22, 0.72);
  --faq-border: rgba(199, 211, 224, 0.16);
  --faq-border-strong: rgba(199, 211, 224, 0.34);
  --faq-glow: rgba(0, 255, 198, 0.5);
  background-color: var(--color-deep);
  background-image: linear-gradient(var(--faq-grid-line) 1px, transparent 1px), linear-gradient(90deg, var(--faq-grid-line) 1px, transparent 1px);
  background-size: 28px 28px;
}

.page-faq .faq-hero {
  position: relative;
  padding: 140px 0 8px;
}

.page-faq .faq-hero-title {
  position: relative;
  max-width: 860px;
  padding: 8px 0 0 22px;
}

.page-faq .faq-hero-title::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: linear-gradient(180deg, var(--color-cyan) 0%, transparent 70%);
  opacity: 0.8;
}

.page-faq .faq-hero-title .page-kicker {
  color: var(--color-cyan);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.page-faq .faq-hero-title h1 {
  margin: 14px 0 18px;
  font-family: var(--font-title);
  font-weight: 900;
  font-size: clamp(26px, 4.4vw, 42px);
  line-height: 1.25;
  color: var(--color-silver);
}

.page-faq .faq-hero-title .page-summary {
  max-width: 720px;
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--color-metal);
}

.page-faq .faq-hero-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 36px;
  padding-bottom: 12px;
}

.page-faq .faq-stat {
  padding: 18px 16px;
  background: var(--faq-panel);
  border: 1px solid var(--faq-border);
  clip-path: polygon(0 0, calc(100% - 14px) 0, 100% 14px, 100% 100%, 14px 100%, 0 calc(100% - 14px));
}

.page-faq .faq-stat .card-label {
  display: block;
  font-size: 12px;
  color: var(--color-blue-gray);
}

.page-faq .faq-stat .card-value {
  display: block;
  margin-top: 6px;
  font-family: var(--font-mono);
  font-size: 22px;
  color: var(--color-silver);
  letter-spacing: 0.02em;
}

.page-faq .faq-section {
  position: relative;
  padding: 72px 0 16px;
}

.page-faq .faq-section-head {
  margin-bottom: 34px;
}

.page-faq .faq-section-code {
  display: inline-block;
  margin-bottom: 10px;
  padding: 4px 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--color-cyan);
  border: 1px solid rgba(0, 255, 198, 0.3);
}

.page-faq .faq-section-head h2 {
  margin: 0 0 12px;
  font-family: var(--font-title);
  font-weight: 900;
  font-size: 26px;
  line-height: 1.3;
  color: var(--color-silver);
}

.page-faq .faq-section-desc {
  margin: 0;
  max-width: 620px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--color-blue-gray);
}

.page-faq .faq-qna-grid {
  display: grid;
  gap: 34px;
}

.page-faq .faq-cats h3 {
  margin: 0 0 14px;
  font-size: 14px;
  color: var(--color-blue-gray);
  letter-spacing: 0.08em;
}

.page-faq .faq-cat-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-faq .faq-cat-btn {
  display: inline-block;
  padding: 8px 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--color-metal);
  text-decoration: none;
  border: 1px solid var(--faq-border);
  background: rgba(11, 16, 22, 0.4);
  transition: color 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

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

.page-faq .faq-cat-btn.is-current {
  color: var(--color-cyan);
  border-color: var(--color-cyan);
  box-shadow: inset 0 0 0 1px var(--color-cyan);
}

.page-faq .faq-group + .faq-group {
  margin-top: 42px;
}

.page-faq .faq-group-title {
  display: flex;
  align-items: center;
  gap: 6px;
  margin: 0 0 16px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--faq-border);
  font-size: 15px;
  color: var(--color-silver);
  letter-spacing: 0.04em;
}

.page-faq .faq-group-index {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--color-cyan);
}

.page-faq .faq-item {
  margin-bottom: 12px;
  background: rgba(17, 41, 92, 0.4);
  border-left: 3px solid var(--faq-border);
  clip-path: polygon(0 0, calc(100% - 14px) 0, 100% 14px, 100% 100%, 14px 100%, 0 calc(100% - 14px));
  transition: border-color 0.3s ease;
}

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

.page-faq .faq-q {
  display: flex;
  align-items: center;
  gap: 14px;
  width: 100%;
  padding: 18px 16px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 15px;
  color: var(--color-silver);
  user-select: none;
  transition: background 0.2s ease;
}

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

.page-faq .faq-q::marker {
  content: "";
}

.page-faq .faq-q:hover,
.page-faq .faq-q:focus-visible {
  background: rgba(0, 255, 198, 0.04);
  outline: none;
}

.page-faq .faq-q-index {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--color-blue-gray);
}

.page-faq .faq-q-text {
  flex: 1 1 auto;
  margin: 0;
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 15px;
  line-height: 1.5;
  color: var(--color-silver);
}

.page-faq .faq-q-icon {
  flex: 0 0 auto;
  width: 22px;
  height: 22px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(0, 255, 198, 0.35);
  color: var(--color-cyan);
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1;
}

.page-faq .faq-item:not([open]) .faq-q-icon::before {
  content: "+";
}

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

.page-faq .faq-a {
  padding: 2px 16px 20px 52px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--color-metal);
}

.page-faq .faq-a p {
  margin: 0 0 12px;
}

.page-faq .faq-list-inline {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 0;
  margin: 14px 0 0;
  list-style: none;
}

.page-faq .faq-list-inline li {
  padding: 5px 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--color-cyan);
  border: 1px solid rgba(0, 255, 198, 0.18);
  background: rgba(0, 255, 198, 0.04);
}

.page-faq .faq-search-grid {
  display: grid;
  gap: 28px;
}

.page-faq .faq-terminal {
  border: 1px solid var(--faq-border);
  background: var(--faq-panel-deep);
  clip-path: polygon(0 0, calc(100% - 20px) 0, 100% 20px, 100% 100%, 20px 100%, 0 calc(100% - 20px));
}

.page-faq .terminal-head {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--faq-border);
}

.page-faq .terminal-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--color-blue-gray);
  opacity: 0.55;
}

.page-faq .terminal-dot:nth-child(2) {
  background: var(--color-cyan);
}

.page-faq .terminal-dot:nth-child(3) {
  background: var(--color-cyan-deep);
}

.page-faq .terminal-file {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--color-blue-gray);
}

.page-faq .terminal-body {
  padding: 22px 18px;
}

.page-faq .terminal-line {
  margin-bottom: 12px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--color-metal);
}

.page-faq .terminal-prompt {
  color: var(--color-cyan);
}

.page-faq .faq-search-box {
  position: relative;
  margin: 14px 0;
}

.page-faq .faq-search-input {
  width: 100%;
  padding: 14px 16px 14px 44px;
  background: rgba(199, 211, 224, 0.06);
  border: 1px solid var(--faq-border);
  color: var(--color-silver);
  font-family: var(--font-mono);
  font-size: 13px;
  outline: none;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.page-faq .faq-search-input:focus {
  border-color: var(--color-cyan);
  box-shadow: 0 0 0 3px rgba(0, 255, 198, 0.14);
}

.page-faq .faq-search-input::placeholder {
  color: var(--color-blue-gray);
  opacity: 0.8;
}

.page-faq .faq-search-icon {
  position: absolute;
  left: 14px;
  top: 50%;
  width: 14px;
  height: 14px;
  border: 2px solid var(--color-cyan);
  border-radius: 50%;
  transform: translateY(-50%);
  pointer-events: none;
}

.page-faq .faq-search-icon::after {
  content: "";
  position: absolute;
  right: -5px;
  bottom: -3px;
  width: 6px;
  height: 2px;
  background: var(--color-cyan);
  transform: rotate(45deg);
}

.page-faq .faq-tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  margin-top: 16px;
}

.page-faq .faq-tag-label {
  font-size: 12px;
  color: var(--color-blue-gray);
}

.page-faq .faq-tag {
  padding: 5px 10px;
  border: 1px solid var(--faq-border);
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--color-metal);
  text-decoration: none;
  transition: border-color 0.2s ease, color 0.2s ease;
}

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

.page-faq .faq-record-list {
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--faq-border);
}

.page-faq .faq-record-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 4px;
  border-bottom: 1px dashed rgba(199, 211, 224, 0.12);
  font-size: 13px;
}

.page-faq .faq-record-index {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--color-cyan);
}

.page-faq .faq-record-name {
  flex: 1 1 auto;
  color: var(--color-metal);
}

.page-faq .faq-record-state {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--color-blue-gray);
}

.page-faq .faq-record-state::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-cyan);
}

.page-faq .faq-search-visual {
  align-self: center;
}

.page-faq .faq-search-img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--faq-border);
  clip-path: polygon(0 0, calc(100% - 18px) 0, 100% 18px, 100% 100%, 18px 100%, 0 calc(100% - 18px));
  object-fit: cover;
}

.page-faq .faq-img-caption {
  margin: 12px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--color-blue-gray);
}

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

.page-faq .faq-step-tree {
  position: relative;
  display: grid;
  gap: 14px;
}

.page-faq .faq-step-tree::before {
  content: "";
  position: absolute;
  left: 26px;
  top: 18px;
  bottom: 18px;
  width: 1px;
  background: linear-gradient(180deg, var(--color-cyan) 0%, rgba(0, 255, 198, 0.05) 100%);
  opacity: 0.4;
}

.page-faq .faq-step {
  position: relative;
  display: grid;
  grid-template-columns: 52px 1fr;
  gap: 16px;
  align-items: start;
  padding: 16px;
  background: var(--faq-panel);
  border: 1px solid var(--faq-border);
  clip-path: polygon(0 0, calc(100% - 12px) 0, 100% 12px, 100% 100%, 12px 100%, 0 calc(100% - 12px));
  transition: transform 0.3s ease, border-color 0.3s ease;
}

.page-faq .faq-step:hover {
  border-color: var(--faq-border-strong);
  transform: translateX(4px);
}

.page-faq .skill-step {
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--color-cyan);
  border: 1px solid rgba(0, 255, 198, 0.35);
  background: rgba(0, 255, 198, 0.06);
  clip-path: polygon(0 0, calc(100% - 8px) 0, 100% 8px, 100% 100%, 8px 100%, 0 calc(100% - 8px));
}

.page-faq .skill-content h3 {
  margin: 0 0 6px;
  font-size: 15px;
  font-weight: 700;
  color: var(--color-silver);
}

.page-faq .skill-content p {
  margin: 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--color-blue-gray);
}

.page-faq .faq-relogin-visual {
  align-self: center;
  text-align: center;
}

.page-faq .faq-relogin-img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--faq-border);
  clip-path: polygon(0 0, calc(100% - 18px) 0, 100% 18px, 100% 100%, 18px 100%, 0 calc(100% - 18px));
  object-fit: cover;
}

.page-faq .faq-relogin-note {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin-top: 16px;
  padding: 12px 16px;
  border: 1px solid rgba(0, 255, 198, 0.25);
  background: rgba(0, 255, 198, 0.05);
  font-size: 13px;
  color: var(--color-cyan);
}

.page-faq .faq-guides-grid {
  display: grid;
  gap: 22px;
}

.page-faq .faq-guide-card {
  position: relative;
  padding: 26px 22px;
  background: var(--faq-panel);
  border: 1px solid var(--faq-border);
  clip-path: polygon(0 0, calc(100% - 20px) 0, 100% 20px, 100% 100%, 20px 100%, 0 calc(100% - 20px));
  transition: border-color 0.3s ease;
}

.page-faq .faq-guide-card:hover {
  border-color: var(--faq-border-strong);
}

.page-faq .faq-guide-card::before {
  content: "";
  position: absolute;
  top: 0;
  right: 20px;
  width: 72px;
  height: 2px;
  background: var(--color-cyan);
  opacity: 0.45;
}

.page-faq .faq-guide-title {
  margin: 0 0 18px;
  font-size: 18px;
  font-weight: 700;
  color: var(--color-silver);
  letter-spacing: 0.02em;
}

.page-faq .faq-guide-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-guide-list li {
  display: grid;
  grid-template-columns: 36px 1fr;
  gap: 8px;
  padding: 10px 0;
  border-bottom: 1px dashed rgba(199, 211, 224, 0.1);
  font-size: 14px;
  line-height: 1.7;
  color: var(--color-metal);
}

.page-faq .faq-guide-num {
  padding-top: 2px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--color-cyan);
}

.page-faq .faq-guide-tip {
  margin-top: 16px;
  padding: 12px 14px;
  border-left: 3px solid var(--color-cyan-deep);
  background: rgba(0, 179, 134, 0.08);
  font-size: 13px;
  line-height: 1.7;
  color: var(--color-metal);
}

.page-faq .faq-contact-cta {
  padding: 60px 0 88px;
}

.page-faq .faq-cta-panel {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 24px;
  padding: 30px 28px;
  background: linear-gradient(135deg, rgba(0, 255, 198, 0.07), rgba(17, 41, 92, 0.55));
  border: 1px solid rgba(0, 255, 198, 0.22);
  clip-path: polygon(0 0, calc(100% - 24px) 0, 100% 24px, 100% 100%, 24px 100%, 0 calc(100% - 24px));
}

.page-faq .faq-cta-panel h2 {
  margin: 0 0 8px;
  font-size: 20px;
  font-weight: 800;
  color: var(--color-silver);
}

.page-faq .faq-cta-panel p {
  margin: 0;
  max-width: 560px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--color-blue-gray);
}

.page-faq .faq-cta-actions {
  flex: 0 0 auto;
}

.page-faq .faq-internal-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 16px;
  justify-content: center;
  margin-top: 24px;
  font-family: var(--font-mono);
  font-size: 12px;
}

.page-faq .faq-internal-links a {
  color: var(--color-blue-gray);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.2s ease, border-color 0.2s ease;
}

.page-faq .faq-internal-links a:hover,
.page-faq .faq-internal-links a:focus-visible {
  color: var(--color-cyan);
  border-color: var(--color-cyan);
}

.page-faq .faq-internal-sep {
  color: rgba(199, 211, 224, 0.3);
}

@media (min-width: 640px) {
  .page-faq .faq-hero-stats {
    grid-template-columns: repeat(4, 1fr);
  }

  .page-faq .faq-section {
    padding: 80px 0 20px;
  }
}

@media (min-width: 992px) {
  .page-faq .faq-section {
    padding: 96px 0 24px;
  }

  .page-faq .faq-qna-grid {
    grid-template-columns: 230px minmax(0, 1fr);
    gap: 48px;
    align-items: start;
  }

  .page-faq .faq-cats {
    position: sticky;
    top: 100px;
  }

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

  .page-faq .faq-search-grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: 40px;
    align-items: center;
  }

  .page-faq .faq-relogin-grid {
    grid-template-columns: minmax(0, 7fr) minmax(320px, 4fr);
    gap: 48px;
    align-items: start;
  }

  .page-faq .faq-guides-grid {
    grid-template-columns: 1fr 1fr;
    gap: 30px;
  }

  .page-faq .faq-q {
    padding: 20px 22px;
  }

  .page-faq .faq-a {
    padding-left: 68px;
  }

  .page-faq .faq-cta-panel {
    padding: 36px 40px;
  }
}