.page-faq {
  --tut-rule: rgba(11, 93, 78, 0.22);
  --tut-ink-soft: rgba(19, 33, 29, 0.78);
  --tut-ink-mute: rgba(19, 33, 29, 0.6);
}

.page-faq .tut-hero {
  position: relative;
  overflow: hidden;
  padding-block: clamp(18px, 3vw, 32px) clamp(30px, 4.6vw, 56px);
  background:
    linear-gradient(180deg, rgba(216, 227, 221, 0.72), rgba(250, 246, 234, 0) 62%),
    var(--paper);
  border-bottom: 1px solid var(--line);
}

.page-faq .tut-hero::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 4px;
  background: linear-gradient(180deg, var(--green), var(--sand) 52%, var(--violet));
}

.page-faq .tut-ruler {
  display: block;
  width: 100%;
  height: 14px;
  color: var(--tut-rule);
  margin-bottom: clamp(10px, 1.6vw, 16px);
}

.page-faq .breadcrumbs {
  font-size: 13px;
  color: var(--tut-ink-mute);
}

.page-faq .breadcrumbs a {
  color: var(--green);
  text-decoration: none;
}

.page-faq .breadcrumbs a:hover {
  text-decoration: underline;
}

.page-faq .breadcrumbs span[aria-hidden="true"] {
  color: var(--sand);
  margin-inline: 6px;
}

.page-faq .tut-hero__grid {
  display: grid;
  gap: clamp(20px, 3vw, 36px);
  margin-top: clamp(12px, 2vw, 20px);
}

.page-faq .tut-hero__lead h1 {
  font-family: var(--font-display);
  font-size: clamp(28px, 5vw, 54px);
  line-height: 1.16;
  letter-spacing: -0.01em;
  margin: 12px 0 0;
  color: var(--ink);
  max-width: 20em;
}

.page-faq .tut-hero__lead .lede {
  margin-top: clamp(14px, 2vw, 20px);
  max-width: 38em;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.8;
  color: var(--tut-ink-soft);
}

.page-faq .tut-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: clamp(18px, 2.4vw, 26px);
}

.page-faq .tut-hero__figure {
  margin: 0;
}

.page-faq .tut-hero__figure .figure__media {
  aspect-ratio: 4 / 3;
  overflow: hidden;
  border-radius: var(--r-lg);
}

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

.page-faq .tut-hero__figure .figure__caption,
.page-faq .tut-device__figure .figure__caption {
  margin-top: 10px;
  font-size: 12px;
  line-height: 1.6;
  color: var(--tut-ink-mute);
}

.page-faq .steps {
  list-style: none;
  margin: clamp(26px, 4vw, 44px) 0 0;
  padding: 0;
  display: grid;
  gap: clamp(12px, 2vw, 18px);
}

.page-faq .steps__item {
  position: relative;
  padding: 20px 18px 22px;
  border-radius: var(--r-md);
  background: rgba(255, 255, 255, 0.74);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-soft);
}

.page-faq .steps__item::before {
  content: "";
  position: absolute;
  left: 18px;
  top: 0;
  width: 46px;
  height: 3px;
  border-radius: 0 0 3px 3px;
  background: var(--sand);
}

.page-faq .steps__no {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--sand);
}

.page-faq .steps__title {
  margin: 10px 0 8px;
  font-size: clamp(17px, 2vw, 20px);
  font-weight: 600;
  color: var(--ink);
}

.page-faq .steps__item p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--tut-ink-soft);
}

.page-faq .tut-body {
  display: grid;
  gap: clamp(22px, 3vw, 34px);
  padding-block: clamp(30px, 5vw, 64px);
}

.page-faq .tut-toc {
  border: 0;
  border-top: 2px solid var(--green);
  padding-top: 12px;
}

.page-faq .tut-toc__label {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--tut-ink-mute);
}

.page-faq .tut-toc__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  scrollbar-width: thin;
  padding-bottom: 6px;
}

.page-faq .tut-toc__list li {
  flex: none;
}

.page-faq .tut-toc .anchor-nav__link {
  display: inline-block;
  padding: 7px 14px;
  border-radius: var(--r-pill);
  border: 1px solid var(--line-strong);
  font-size: 13px;
  color: var(--ink);
  text-decoration: none;
  white-space: nowrap;
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.page-faq .tut-toc .anchor-nav__link:hover {
  border-color: var(--green);
  color: var(--green);
}

.page-faq .tut-toc .anchor-nav__link[aria-current="true"] {
  background: var(--green);
  border-color: var(--green);
  color: var(--paper);
}

.page-faq .tut-main {
  display: grid;
  gap: clamp(34px, 5vw, 60px);
  min-width: 0;
}

.page-faq .tut-sec__head {
  max-width: 46em;
}

.page-faq .tut-sec__head .index-label {
  margin: 0 0 8px;
}

.page-faq .tut-sec .section-title {
  margin: 0;
  font-size: clamp(22px, 3vw, 32px);
  line-height: 1.3;
  color: var(--ink);
  font-family: var(--font-display);
}

.page-faq .tut-sec__desc {
  margin: 12px 0 0;
  font-size: clamp(14.5px, 1.5vw, 16px);
  line-height: 1.8;
  color: var(--tut-ink-soft);
}

.page-faq .faq-list {
  display: grid;
  gap: 10px;
  margin-top: clamp(16px, 2.4vw, 24px);
  min-width: 0;
}

.page-faq .faq-item {
  border-radius: var(--r-md);
  background: var(--mist);
  border: 1px solid transparent;
  transition: background 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
  overflow: hidden;
}

.page-faq .faq-item[open] {
  background: var(--white);
  border-color: var(--line);
  box-shadow: var(--shadow-soft);
}

.page-faq .faq-item summary {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 15px 16px;
  cursor: pointer;
  list-style: none;
}

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

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

.page-faq .faq-no {
  flex: none;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.12em;
  color: var(--wind);
  transition: color 0.2s ease;
}

.page-faq .faq-item[open] .faq-no {
  color: var(--sand);
}

.page-faq .faq-q {
  flex: 1;
  min-width: 0;
  font-size: clamp(14.5px, 1.5vw, 16.5px);
  line-height: 1.55;
  font-weight: 500;
  color: var(--ink);
}

.page-faq .faq-mark {
  flex: none;
  position: relative;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  border: 1px solid var(--line-strong);
  align-self: center;
}

.page-faq .faq-mark::before,
.page-faq .faq-mark::after {
  content: "";
  position: absolute;
  background: var(--ink);
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.page-faq .faq-mark::before {
  left: 5px;
  right: 5px;
  top: 50%;
  height: 1px;
  transform: translateY(-50%);
}

.page-faq .faq-mark::after {
  top: 5px;
  bottom: 5px;
  left: 50%;
  width: 1px;
  transform: translateX(-50%);
}

.page-faq .faq-item[open] .faq-mark::after {
  opacity: 0;
}

.page-faq .faq-a {
  padding: 0 16px 18px;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--tut-ink-soft);
}

.page-faq .faq-a p {
  margin: 0 0 10px;
}

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

.page-faq .tut-device__figure {
  margin: clamp(16px, 2.4vw, 24px) 0 0;
}

.page-faq .tut-device__figure .figure__media {
  aspect-ratio: 16 / 10;
  overflow: hidden;
  border-radius: var(--r-lg);
}

.page-faq .doc-groups {
  display: grid;
  gap: 8px;
  margin-top: clamp(16px, 2.4vw, 24px);
}

.page-faq .doc-group {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 6px 14px;
  padding: 13px 16px;
  border-radius: var(--r-sm);
  background: var(--white);
  border: 1px solid var(--line);
}

.page-faq .doc-group__name {
  font-size: 15px;
  font-weight: 500;
  color: var(--ink);
}

.page-faq .doc-group__meta {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.04em;
  color: var(--wind);
}

.page-faq .tut-note {
  margin-top: clamp(16px, 2.4vw, 24px);
  padding: 16px 18px;
  border-radius: var(--r-md);
  background: var(--sand-soft);
  border-left: 3px solid var(--sand);
}

.page-faq .tut-note p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--ink);
}

.page-faq .tut-note a {
  color: var(--green-deep);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .doc-rows {
  display: grid;
  gap: 8px;
  margin-top: clamp(16px, 2.4vw, 22px);
}

.page-faq .doc-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 12px;
  padding: 10px 12px 10px 16px;
  border-radius: var(--r-pill);
  background: rgba(216, 227, 221, 0.6);
}

.page-faq .doc-row__code {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.06em;
  color: var(--ink);
  flex: none;
}

.page-faq .doc-row__name {
  flex: 1;
  min-width: 8em;
  font-size: 13px;
  color: var(--tut-ink-soft);
}

.page-faq .copy-btn {
  flex: none;
  font-family: var(--font-sans);
  font-size: 12px;
  line-height: 1;
  padding: 7px 13px;
  border-radius: var(--r-pill);
  border: 1px solid var(--line-strong);
  background: var(--white);
  color: var(--ink);
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.page-faq .copy-btn:hover {
  background: var(--green);
  border-color: var(--green);
  color: var(--paper);
}

.page-faq .copy-btn[data-copied] {
  background: var(--orange);
  border-color: var(--orange);
  color: var(--ink);
}

.page-faq .tut-hint {
  margin: 12px 0 0;
  font-size: 13px;
  line-height: 1.8;
  color: var(--tut-ink-mute);
}

.page-faq .index-list {
  list-style: none;
  margin: clamp(16px, 2.4vw, 24px) 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-faq .index-list li {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 13px 15px;
  border-radius: var(--r-sm);
  background: var(--white);
  border: 1px solid var(--line);
}

.page-faq .index-list__no {
  flex: none;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.1em;
  color: var(--sand);
}

.page-faq .index-list__text {
  font-size: 14px;
  line-height: 1.75;
  color: var(--tut-ink-soft);
}

.page-faq .index-list__text a {
  color: var(--green);
  font-weight: 500;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .help-grid {
  display: grid;
  gap: 10px;
  margin-top: clamp(16px, 2.4vw, 24px);
}

.page-faq .help-card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 10px;
  padding: 18px;
  border-radius: var(--r-md);
}

.page-faq .help-card--green {
  background: var(--green);
  color: var(--paper);
}

.page-faq .help-card--sand {
  background: var(--sand);
  color: var(--ink);
}

.page-faq .help-card--mist {
  background: var(--mist);
  color: var(--ink);
}

.page-faq .help-card__label {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  opacity: 0.78;
}

.page-faq .help-card__value {
  font-size: 14.5px;
  line-height: 1.7;
  color: inherit;
  word-break: break-word;
  text-decoration: none;
}

.page-faq a.help-card__value {
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .help-card--green .copy-btn {
  background: transparent;
  border-color: rgba(250, 246, 234, 0.5);
  color: var(--paper);
}

.page-faq .help-card--green .copy-btn:hover {
  background: var(--paper);
  color: var(--green);
}

.page-faq .tut-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: clamp(18px, 2.6vw, 26px);
}

@media (min-width: 620px) {
  .page-faq .doc-groups {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

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

  .page-faq .faq-a {
    padding-inline: 46px 20px;
  }
}

@media (min-width: 760px) {
  .page-faq .steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-faq .tut-hero__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 320px);
    align-items: start;
  }

  .page-faq .tut-hero__figure .figure__media {
    aspect-ratio: 3 / 4;
  }

  .page-faq .help-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 960px) {
  .page-faq .tut-body {
    grid-template-columns: 220px minmax(0, 1fr);
    align-items: start;
    gap: clamp(28px, 3.4vw, 48px);
  }

  .page-faq .tut-toc {
    position: sticky;
    top: clamp(92px, 11vw, 128px);
  }

  .page-faq .tut-toc__list {
    flex-direction: column;
    overflow-x: visible;
    gap: 4px;
    padding-bottom: 0;
  }

  .page-faq .tut-toc .anchor-nav__link {
    display: block;
    border: 0;
    border-left: 2px solid var(--line);
    border-radius: 0 var(--r-pill) var(--r-pill) 0;
    padding: 8px 12px;
    white-space: normal;
  }

  .page-faq .tut-toc .anchor-nav__link[aria-current="true"] {
    border-left-color: var(--sand);
    background: rgba(11, 93, 78, 0.08);
    color: var(--green);
    font-weight: 600;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-mark::before,
  .page-faq .faq-mark::after,
  .page-faq .copy-btn,
  .page-faq .faq-item {
    transition: none;
  }
}