.fq, .fq-home { --fq-ink: #0B0B0F; --fq-mute: #565660; --fq-line: rgba(11,11,15,.11); --fq-teal: #35A4B7; --fq-ease: cubic-bezier(.2,.8,.2,1); --fq-grad: linear-gradient(100deg, #4DB6C4, #B8F35C); }
.fq-wrap { max-width: 1120px; margin: 0 auto; }

.fq-hero h1 { max-width: 14ch; margin-bottom: 14px; }
.fq-lead { margin: 0 0 30px; max-width: 52ch; font-size: clamp(16px, 1.7vw, 19px); line-height: 1.6; color: var(--fq-mute); }
.fq-search { position: relative; display: flex; align-items: center; gap: 12px; max-width: 720px; height: 68px; padding: 0 18px 0 22px; background: #fff; border: 1.5px solid var(--fq-line); border-radius: 22px; box-shadow: 0 26px 44px -30px rgba(11,11,15,.45); transition: border-color .25s, box-shadow .25s; }
.fq-search:focus-within { border-color: var(--fq-teal); box-shadow: 0 0 0 5px rgba(77,182,196,.2), 0 26px 44px -30px rgba(11,11,15,.45); }
.fq-search svg { flex: none; width: 22px; height: 22px; color: var(--fq-mute); }
.fq-search input { flex: 1; min-width: 0; height: 100%; border: 0; outline: 0; background: none; font: 600 18px/1 var(--font-body, inherit); color: var(--fq-ink); }
.fq-search input::placeholder { color: #9a9aa3; font-weight: 500; }
.fq-search input::-webkit-search-cancel-button { display: none; }
.fq-search kbd { flex: none; display: grid; place-items: center; width: 28px; height: 28px; border-radius: 8px; border: 1px solid var(--fq-line); background: #F3F3F1; color: var(--fq-mute); font: 600 13px/1 var(--font-mono, monospace); transition: opacity .2s; }
.fq-search:focus-within kbd, .fq-search.has-q kbd { opacity: 0; width: 0; border: 0; margin-left: -12px; }
.fq-clear { flex: none; width: 32px; height: 32px; border: 0; border-radius: 50%; background: #F3F3F1; color: var(--fq-ink); font-size: 20px; line-height: 1; cursor: pointer; transition: background .2s, transform .2s; }
.fq-clear:hover { background: #e7e7e3; transform: scale(1.06); }
.fq-status { margin: 14px 4px 0; min-height: 22px; font-size: 14.5px; color: var(--fq-mute); }

.fq-layout { display: grid; grid-template-columns: 250px minmax(0, 1fr); gap: 64px; align-items: start; margin-top: 44px; }
.fq-nav { position: sticky; top: calc(var(--hdr-h, 100px) + 12px); display: grid; gap: 4px; }
.fq-nav a { position: relative; display: flex; align-items: center; justify-content: space-between; gap: 10px; padding: 11px 14px; border-radius: 14px; color: var(--fq-mute); font-weight: 600; font-size: 15.5px; text-decoration: none; transition: background .25s, color .25s, opacity .25s; }
.fq-nav a b { min-width: 24px; padding: 2px 7px; border-radius: 99px; background: rgba(11,11,15,.06); color: var(--fq-mute); font: 600 12px/1.5 var(--font-mono, monospace); text-align: center; transition: background .25s, color .25s; }
.fq-nav a:hover { background: rgba(255,255,255,.7); color: var(--fq-ink); }
.fq-nav a[aria-current="true"] { background: #fff; color: var(--fq-ink); box-shadow: 0 0 0 1px var(--fq-line), 0 12px 22px -16px rgba(11,11,15,.4); }
.fq-nav a[aria-current="true"] b { background: var(--fq-grad); color: var(--fq-ink); }
.fq-nav a.is-none { opacity: .35; pointer-events: none; }
.fq-nav a:focus-visible { outline: 3px solid var(--fq-teal); outline-offset: 2px; }

.fq-list { display: flex; flex-direction: column; }
.fq-group { scroll-margin-top: calc(var(--hdr-h, 100px) + 16px); margin-bottom: 44px; }
.fq-group header { margin: 0 0 10px 4px; }
.fq-group h2 { margin: 0 0 4px; font-family: var(--font-display, inherit); font-size: clamp(24px, 3vw, 32px); letter-spacing: -.03em; line-height: 1.1; }
.fq-group header p { margin: 0; color: var(--fq-mute); font-size: 15.5px; }
.fq-list.is-search .fq-group { display: contents; }
.fq-list.is-search .fq-group header { display: none; }
.fq-list.is-search .fq-cat { display: inline-block; }

.fq-q { position: relative; border-bottom: 1px solid var(--fq-line); border-radius: 0; background: transparent; transition: background .35s var(--fq-ease), box-shadow .35s var(--fq-ease), border-radius .35s var(--fq-ease), margin .35s var(--fq-ease); }
.fq-q[hidden] { display: none; }
.fq-q[open] { margin: 6px 0; background: #fff; border-radius: 24px; border-bottom-color: transparent; box-shadow: 0 0 0 1px var(--fq-line), 0 30px 50px -36px rgba(11,11,15,.45); }
.fq-q summary { list-style: none; display: flex; align-items: center; gap: 14px; padding: 22px 18px; cursor: pointer; border-radius: 24px; }
.fq-q summary::-webkit-details-marker { display: none; }
.fq-q summary:focus-visible { outline: 3px solid var(--fq-teal); outline-offset: -3px; }
.fq-qt { flex: 1; font-family: var(--font-display, inherit); font-size: clamp(17px, 1.9vw, 20px); font-weight: 650; letter-spacing: -.02em; line-height: 1.3; color: var(--fq-ink); transition: color .25s; text-wrap: pretty; }
.fq-qt mark { background: linear-gradient(transparent 55%, rgba(184,243,92,.85) 55%); color: inherit; border-radius: 2px; }
.fq-q:not([open]) summary:hover .fq-qt { color: #1c6f7d; }
.fq-cat { display: none; flex: none; padding: 4px 10px; border-radius: 99px; background: rgba(11,11,15,.06); color: var(--fq-mute); font-size: 12px; font-weight: 600; white-space: nowrap; }
.fq-tg { flex: none; position: relative; width: 34px; height: 34px; border-radius: 50%; background: rgba(11,11,15,.06); transition: background .3s, transform .45s var(--fq-ease); }
.fq-tg::before, .fq-tg::after { content: ''; position: absolute; left: 50%; top: 50%; width: 12px; height: 2px; margin: -1px 0 0 -6px; border-radius: 2px; background: var(--fq-ink); transition: transform .45s var(--fq-ease); }
.fq-tg::after { transform: rotate(90deg); }
.fq-q[open] .fq-tg { background: var(--fq-grad); transform: rotate(180deg); }
.fq-q[open] .fq-tg::after { transform: rotate(0); }
.fq-a-in { padding: 0 72px 26px 18px; max-width: 70ch; }
.fq-a-in p { margin: 0 0 12px; font-size: 17px; line-height: 1.68; color: var(--fq-mute); }
.fq-a-in b { color: var(--fq-ink); }
.fq-a-in a { color: var(--fq-ink); text-decoration: underline; text-decoration-color: var(--fq-teal); text-underline-offset: 3px; text-decoration-thickness: 2px; }
.fq-a-in a:hover { background: rgba(77,182,196,.16); }
.fq-meta { margin: 14px 0 0 !important; }
.fq-copy { padding: 7px 14px; border-radius: 99px; border: 1px solid var(--fq-line); background: #fff; color: var(--fq-mute); font: 600 13px/1 var(--font-body, inherit); cursor: pointer; transition: background .2s, color .2s, transform .2s; }
.fq-copy:hover { background: #F3F3F1; color: var(--fq-ink); }
.fq-copy.is-done { background: #dff5e9; border-color: transparent; color: #137a4a; }
.fq-q.is-target { animation: fq-target 2.2s var(--fq-ease); }
@keyframes fq-target { 0%, 35% { box-shadow: 0 0 0 4px rgba(77,182,196,.55), 0 30px 50px -36px rgba(11,11,15,.45); } 100% { } }

.fq-empty { padding: 40px 28px; border-radius: 28px; background: #fff; border: 1px dashed rgba(11,11,15,.2); text-align: center; }
.fq-empty b { display: block; font-family: var(--font-display, inherit); font-size: 22px; letter-spacing: -.02em; }
.fq-empty p { margin: 8px 0 20px; color: var(--fq-mute); }
.fq-btn { display: inline-flex; align-items: center; justify-content: center; min-height: 50px; padding: 0 26px; border-radius: 99px; background: var(--fq-ink); color: #fff; font: 700 15.5px/1 var(--font-body, inherit); text-decoration: none; transition: transform .25s var(--fq-ease), box-shadow .3s; }
.fq-btn:hover { transform: translateY(-2px); box-shadow: 0 16px 26px -14px rgba(11,11,15,.55); }
.fq-btn:focus-visible { outline: 3px solid var(--fq-teal); outline-offset: 3px; }
.fq-help { display: flex; align-items: center; justify-content: space-between; gap: 28px; margin-top: 28px; padding: 34px 38px; border-radius: 32px; background: radial-gradient(420px 260px at 0% 0%, #D7F1F5, transparent 70%), radial-gradient(420px 260px at 100% 100%, #E3F7C9, transparent 70%), #fff; border: 1px solid var(--fq-line); }
.fq-help h2 { margin: 0 0 6px; font-family: var(--font-display, inherit); font-size: clamp(22px, 2.6vw, 28px); letter-spacing: -.03em; }
.fq-help p { margin: 0; max-width: 46ch; color: var(--fq-mute); line-height: 1.6; }
.fq-help a:not(.fq-btn) { color: var(--fq-ink); text-decoration: underline; text-decoration-color: var(--fq-teal); text-underline-offset: 3px; }

.fq-home { margin-top: 112px; padding: 104px 0; background: linear-gradient(180deg, var(--hm-bg, #F3F3F1), #FBE9DC 55%, #F7DCE9); }
.fq-home-grid { display: grid; grid-template-columns: minmax(0, .8fr) minmax(0, 1.2fr); gap: 72px; align-items: start; }
.fq-home-side { position: sticky; top: 120px; }
.fq-home-side h2 { text-wrap: balance; }
.fq-home-side .hm-lead { margin-bottom: 26px; }
.fq-btn--ink { margin-bottom: 30px; }
.fq-mini { display: grid; gap: 4px; padding: 20px 22px; border-radius: 22px; background: rgba(255,255,255,.7); border: 1px solid var(--fq-line); -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px); }
.fq-mini span { color: var(--fq-mute); font-size: 15px; line-height: 1.5; }
.fq-mini a { color: var(--fq-ink); font-weight: 700; text-decoration: underline; text-decoration-color: var(--fq-teal); text-underline-offset: 3px; }
.fq-list--home { gap: 10px; }
.fq-list--home .fq-q { background: #fff; border: 1px solid var(--fq-line); border-radius: 24px; margin: 0; }
.fq-list--home .fq-q[open] { margin: 0; box-shadow: 0 30px 50px -36px rgba(11,11,15,.5); }

@media (max-width: 980px) {
  .fq-layout { grid-template-columns: 1fr; gap: 28px; margin-top: 30px; }
  .fq-nav { position: sticky; top: calc(var(--hdr-h, 76px) - 4px); z-index: 5; display: flex; gap: 8px; margin: 0 -24px; padding: 10px 24px; overflow-x: auto; scrollbar-width: none; background: linear-gradient(var(--sp-bg, #F3F3F1) 70%, transparent); }
  .fq-nav::-webkit-scrollbar { display: none; }
  .fq-nav a { flex: none; padding: 9px 14px; background: #fff; box-shadow: 0 0 0 1px var(--fq-line); }
  .fq-home-grid { grid-template-columns: 1fr; gap: 36px; }
  .fq-home-side { position: static; }
  .fq-a-in { padding-right: 18px; }
}
@media (max-width: 640px) {
  .fq-search { height: 60px; border-radius: 18px; } .fq-search input { font-size: 16px; } .fq-search kbd { display: none; }
  .fq-q summary { padding: 18px 14px; gap: 10px; } .fq-a-in { padding: 0 14px 22px; } .fq-a-in p { font-size: 16px; }
  .fq-cat { display: none !important; }
  .fq-help { flex-direction: column; align-items: flex-start; padding: 28px 24px; }
  .fq-home { padding: 72px 0; margin-top: 80px; }
}
@media (prefers-reduced-motion: reduce) { .fq-q, .fq-tg, .fq-tg::before, .fq-tg::after { transition: none; } .fq-q.is-target { animation: none; } }
.sp.fq { padding-top: calc(var(--hdr-h, 100px) + 64px); }
@media (max-width: 640px) { .sp.fq { padding-top: calc(var(--hdr-h, 76px) + 28px); padding-bottom: 64px; } }