.page-faq {
  --faq-amber-line: rgba(255, 138, 61, 0.42);
  --faq-amber-wash: rgba(255, 138, 61, 0.09);
  --faq-mint-line: rgba(0, 240, 192, 0.35);
  padding-bottom: clamp(56px, 9vw, 104px);
  color: var(--text);
}

.page-faq .breadcrumb {
  padding-top: clamp(88px, 12vw, 112px);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.02em;
  color: var(--muted);
}

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

.page-faq .breadcrumb a:hover,
.page-faq .breadcrumb a:focus-visible {
  color: var(--mint);
  border-bottom-color: var(--mint);
}

.page-faq .breadcrumb__sep {
  margin: 0 8px;
  color: var(--line);
}

.page-faq .breadcrumb [aria-current="page"] {
  color: var(--text);
}

/* ---------- hero ---------- */
.page-faq .faq-hero {
  padding: clamp(28px, 4vw, 48px) 0 clamp(24px, 3vw, 36px);
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: clamp(28px, 4vw, 48px);
}

.page-faq .faq-hero__lead h1 {
  margin: 14px 0 0;
  font-size: clamp(30px, 5.4vw, 54px);
  line-height: 1.14;
  font-weight: 900;
  letter-spacing: -0.01em;
  max-width: 18em;
}

.page-faq .faq-hero__desc {
  margin: 20px 0 0;
  max-width: 40em;
  font-size: 16.5px;
  line-height: 1.8;
  color: var(--muted);
}

.page-faq .faq-hero__note {
  margin: 18px 0 0;
  padding-left: 14px;
  border-left: 2px solid var(--faq-amber-line);
  font-size: 13px;
  color: var(--amber-soft);
}

.page-faq .faq-meta {
  margin: 0;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-meta__item {
  padding: 18px 10px 18px 0;
  border-right: 1px solid var(--line);
}

.page-faq .faq-meta__item:last-child {
  border-right: 0;
}

.page-faq .faq-meta__item dt {
  font-size: clamp(19px, 3vw, 26px);
  font-weight: 700;
  color: var(--mint);
  letter-spacing: 0.01em;
}

.page-faq .faq-meta__item dd {
  margin: 6px 0 0;
  font-size: 13px;
  line-height: 1.6;
  color: var(--muted);
}

/* ---------- symptom index ---------- */
.page-faq .faq-index {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding-bottom: clamp(36px, 5vw, 56px);
}

.page-faq .faq-chip {
  display: inline-flex;
  align-items: baseline;
  gap: 10px;
  padding: 11px 16px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-left: 3px solid var(--amber);
  color: var(--text);
  font-size: 14px;
  text-decoration: none;
  transition: background 0.2s var(--ease), border-color 0.2s var(--ease), transform 0.2s var(--ease);
}

.page-faq .faq-chip .mono {
  font-size: 12px;
  color: var(--amber-soft);
}

.page-faq .faq-chip:hover,
.page-faq .faq-chip:focus-visible {
  background: var(--card);
  border-color: var(--faq-amber-line);
  transform: translateY(-2px);
}

/* ---------- shared head ---------- */
.page-faq .faq-head h2 {
  margin: 14px 0 0;
  font-size: clamp(23px, 3.6vw, 34px);
  line-height: 1.24;
  font-weight: 800;
  letter-spacing: -0.005em;
}

.page-faq .faq-head__desc {
  margin: 16px 0 0;
  max-width: 46em;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--muted);
}

/* ---------- symptom details ---------- */
.page-faq .faq-symptoms {
  background: var(--panel);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-faq .sym {
  margin-top: 18px;
  background: var(--ink-900);
  border: 1px solid var(--line);
  border-left: 3px solid var(--line);
  transition: border-color 0.25s var(--ease);
}

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

.page-faq .sym summary {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 16px;
  padding: 20px 20px;
  cursor: pointer;
  list-style: none;
}

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

.page-faq .sym summary:hover {
  background: var(--card);
}

.page-faq .sym summary:focus-visible {
  outline: 2px solid var(--mint);
  outline-offset: -2px;
}

.page-faq .sym__idx {
  font-size: 12px;
  color: var(--amber);
  border: 1px solid var(--faq-amber-line);
  padding: 4px 8px;
  line-height: 1;
}

.page-faq .sym__title {
  flex: 1 1 260px;
  margin: 0;
  font-size: clamp(17px, 2.4vw, 21px);
  font-weight: 700;
  line-height: 1.4;
  color: var(--text);
}

.page-faq .sym summary .tag {
  margin-left: auto;
}

.page-faq .sym__body {
  padding: 4px 20px 24px;
}

.page-faq .sym__intro {
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
}

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

.page-faq .sym__list li {
  position: relative;
  padding-left: 22px;
  font-size: 15px;
  line-height: 1.75;
}

.page-faq .sym__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 10px;
  height: 2px;
  background: var(--amber);
}

.page-faq .sym__first {
  margin: 18px 0 0;
  padding: 14px 16px;
  background: var(--faq-amber-wash);
  border-left: 2px solid var(--amber);
  font-size: 14.5px;
  line-height: 1.75;
}

.page-faq .sym__first .mono {
  display: inline-block;
  margin-right: 10px;
  font-size: 12px;
  color: var(--amber-soft);
  letter-spacing: 0.04em;
}

/* ---------- zone ---------- */
.page-faq .faq-zone {
  background: var(--ink-850);
}

.page-faq .faq-zone__figure {
  margin: 0 0 clamp(26px, 4vw, 44px);
}

.page-faq .faq-zone__grid {
  display: grid;
  gap: clamp(24px, 4vw, 48px);
}

.page-faq .faq-zone__body p {
  margin: 0 0 16px;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--muted);
}

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

.page-faq .faq-zone__links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 28px;
  padding-top: 8px;
  border-top: 1px solid var(--line);
}

.page-faq .faq-zone__links .link {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--mint);
  text-decoration: none;
  border-bottom: 1px solid var(--faq-mint-line);
  padding-bottom: 2px;
}

.page-faq .faq-zone__links .link:hover,
.page-faq .faq-zone__links .link:focus-visible {
  color: var(--mint-soft);
  border-bottom-color: var(--mint-soft);
}

/* ---------- steps ---------- */
.page-faq .faq-steps__grid {
  display: grid;
  gap: clamp(26px, 4vw, 44px);
}

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

.page-faq .step {
  position: relative;
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 16px;
  padding-bottom: 26px;
}

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

.page-faq .step::before {
  content: "";
  position: absolute;
  left: 19px;
  top: 44px;
  bottom: 4px;
  border-left: 1px dashed var(--line);
}

.page-faq .step:last-child::before {
  display: none;
}

.page-faq .step__num {
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  font-size: 15px;
  font-weight: 700;
  color: var(--amber);
  background: var(--card);
  border: 1px solid var(--faq-amber-line);
}

.page-faq .step__title {
  margin: 4px 0 10px;
  font-size: 17px;
  font-weight: 700;
  line-height: 1.4;
}

.page-faq .step__body p {
  margin: 0 0 10px;
  font-size: 15px;
  line-height: 1.78;
  color: var(--muted);
}

.page-faq .step__check {
  padding: 12px 14px;
  background: var(--panel);
  border-left: 2px solid var(--faq-mint-line);
  font-size: 14.5px;
  color: var(--text);
}

.page-faq .step__check .mono {
  display: inline-block;
  margin-right: 10px;
  font-size: 12px;
  color: var(--mint);
  letter-spacing: 0.04em;
}

/* ---------- submit ---------- */
.page-faq .faq-submit {
  background: var(--panel);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-submit__grid {
  display: grid;
  gap: clamp(26px, 4vw, 48px);
}

.page-faq .checklist {
  margin-top: clamp(22px, 3vw, 32px);
  display: grid;
  gap: 12px;
}

.page-faq .check-card {
  display: grid;
  grid-template-columns: 22px minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  padding: 16px 18px;
  background: var(--ink-900);
  border: 1px solid var(--line);
  cursor: pointer;
  transition: border-color 0.2s var(--ease), background 0.2s var(--ease);
}

.page-faq .check-card:hover {
  border-color: var(--faq-amber-line);
}

.page-faq .check-card__box {
  position: relative;
  width: 22px;
  height: 22px;
  margin-top: 2px;
  border: 1px solid var(--faq-amber-line);
  background: transparent;
}

.page-faq .check-card__box::after {
  content: "";
  position: absolute;
  left: 6px;
  top: 2px;
  width: 7px;
  height: 12px;
  border-right: 2px solid var(--ink-900);
  border-bottom: 2px solid var(--ink-900);
  transform: rotate(42deg) scale(0);
  transform-origin: center;
  transition: transform 0.16s var(--ease);
}

.page-faq .check-card input:checked ~ .check-card__box {
  background: var(--amber);
  border-color: var(--amber);
}

.page-faq .check-card input:checked ~ .check-card__box::after {
  transform: rotate(42deg) scale(1);
}

.page-faq .check-card input:focus-visible ~ .check-card__box {
  outline: 2px solid var(--mint);
  outline-offset: 3px;
}

.page-faq .check-card input:checked ~ .check-card__text .check-card__title {
  color: var(--amber-soft);
}

.page-faq .check-card__text {
  display: grid;
  gap: 4px;
}

.page-faq .check-card__title {
  font-size: 15.5px;
  font-weight: 700;
  line-height: 1.45;
  color: var(--text);
  transition: color 0.2s var(--ease);
}

.page-faq .check-card__desc {
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
}

.page-faq .faq-submit__tip {
  margin: 20px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
  padding-left: 14px;
  border-left: 2px solid var(--line);
}

.page-faq .faq-submit__figure {
  margin: 0;
}

/* ---------- ticket ---------- */
.page-faq .ticket-panel {
  margin-top: clamp(24px, 3.5vw, 36px);
  display: grid;
  gap: 16px;
  padding: clamp(20px, 3vw, 30px);
  background: var(--ink-850);
  border: 1px solid var(--line);
  border-top: 3px solid var(--amber);
}

.page-faq .ticket-panel__field {
  display: grid;
  gap: 8px;
  padding: 14px 16px;
  background: var(--card);
  border: 1px solid var(--line);
}

.page-faq .ticket-panel__label {
  font-size: 12px;
  color: var(--amber-soft);
  letter-spacing: 0.06em;
}

.page-faq .ticket-panel__value {
  font-size: clamp(17px, 2.6vw, 22px);
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--text);
}

.page-faq .ticket-panel__arrow {
  color: var(--mint);
  font-size: 18px;
  text-align: center;
}

.page-faq .ticket-panel__stages {
  display: grid;
  gap: 8px;
}

.page-faq .ticket-panel__stage {
  padding: 10px 14px;
  font-size: 12.5px;
  letter-spacing: 0.04em;
  color: var(--muted);
  border: 1px dashed var(--line);
}

.page-faq .ticket-panel__stage:first-child {
  color: var(--ink-900);
  background: var(--mint);
  border: 1px solid var(--mint);
  font-weight: 700;
}

.page-faq .ticket-panel__stage:nth-child(2) {
  color: var(--mint);
  border-color: var(--faq-mint-line);
  border-style: solid;
}

.page-faq .faq-ticket__notes {
  margin-top: clamp(20px, 3vw, 28px);
  display: grid;
  gap: 12px;
  max-width: 62em;
}

.page-faq .faq-ticket__notes p {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--muted);
}

/* ---------- reach ---------- */
.page-faq .reach-box {
  padding: clamp(22px, 3.5vw, 40px);
  background: var(--faq-amber-wash);
  border: 1px solid var(--faq-amber-line);
  border-left: 4px solid var(--amber);
}

.page-faq .reach-box__head h2 {
  margin: 14px 0 0;
  font-size: clamp(23px, 3.6vw, 33px);
  line-height: 1.25;
  font-weight: 800;
}

.page-faq .reach-box__grid {
  margin-top: clamp(22px, 3vw, 34px);
  display: grid;
  gap: clamp(22px, 3vw, 36px);
}

.page-faq .reach-box__tag {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--amber-soft);
}

.page-faq .reach-box__item h3 {
  margin: 10px 0 12px;
  font-size: 19px;
  font-weight: 700;
}

.page-faq .reach-box__item p {
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--text);
}

.page-faq .reach-box__item .mono {
  font-size: 13.5px;
  color: var(--amber-soft);
  word-break: break-all;
}

.page-faq .reach-box__sub {
  color: var(--muted) !important;
  font-size: 14px !important;
}

.page-faq .reach-box__sub .link {
  color: var(--mint);
  text-decoration: none;
  border-bottom: 1px solid var(--faq-mint-line);
}

.page-faq .reach-box__sub .link:hover,
.page-faq .reach-box__sub .link:focus-visible {
  color: var(--mint-soft);
  border-bottom-color: var(--mint-soft);
}

.page-faq .reach-box .btn {
  display: inline-block;
  text-decoration: none;
}

/* ---------- images ---------- */
.page-faq .img-frame img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- responsive ---------- */
@media (min-width: 720px) {
  .page-faq .faq-meta__item {
    padding-left: 18px;
  }

  .page-faq .faq-meta__item:first-child {
    padding-left: 0;
  }

  .page-faq .sym summary {
    padding: 22px 26px;
  }

  .page-faq .sym__body {
    padding: 4px 26px 26px;
  }

  .page-faq .checklist {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .ticket-panel {
    grid-template-columns: minmax(0, 1.1fr) 40px minmax(0, 1fr);
    align-items: center;
  }

  .page-faq .reach-box__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 960px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: end;
  }

  .page-faq .faq-zone__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    align-items: start;
  }

  .page-faq .faq-steps__grid {
    grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
    align-items: start;
    gap: clamp(32px, 5vw, 72px);
  }

  .page-faq .faq-head--sticky {
    position: sticky;
    top: 96px;
  }

  .page-faq .faq-submit__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
    gap: clamp(32px, 4vw, 64px);
  }

  .page-faq .faq-submit__figure {
    position: sticky;
    top: 96px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-chip,
  .page-faq .check-card__box::after,
  .page-faq .sym {
    transition: none;
  }

  .page-faq .faq-chip:hover,
  .page-faq .faq-chip:focus-visible {
    transform: none;
  }
}