/* =========================================================
   きらめき ひみつ道具 — 共通スタイル
   ========================================================= */
:root{
  --bg:#070814;
  --bg2:#0d0f24;
  --ink:#eef0ff;
  --muted:#a6a9c8;
  --muted2:#7f83a6;
  --line:rgba(255,255,255,.09);
  --line2:rgba(255,255,255,.14);
  --card:rgba(255,255,255,.045);
  --card-hi:rgba(255,255,255,.085);
  --brand1:#7c5cff;
  --brand2:#37e0d8;
  --brand3:#ff5cae;
  /* 各ページで上書きするアクセント */
  --c1:#7c5cff;
  --c2:#a98bff;
  --radius:22px;
  --shadow:0 24px 60px -20px rgba(0,0,0,.6);
  --font:"Hiragino Kaku Gothic ProN","Hiragino Sans","Yu Gothic",YuGothic,"Meiryo",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
  --maxw:1160px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font);color:var(--ink);background:var(--bg);
  line-height:1.8;overflow-x:hidden;-webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
::selection{background:rgba(124,92,255,.4)}

/* ===== 背景（オーロラ＆星） ===== */
.aurora{position:fixed;inset:0;z-index:-3;pointer-events:none;background:
  radial-gradient(1200px 820px at 12% -8%, rgba(124,92,255,.30), transparent 60%),
  radial-gradient(1000px 720px at 100% 0%, rgba(55,224,216,.20), transparent 55%),
  radial-gradient(950px 760px at 50% 118%, rgba(255,92,174,.20), transparent 60%),
  linear-gradient(180deg,var(--bg),var(--bg2));}
.aurora::before,.aurora::after{content:"";position:absolute;border-radius:50%;filter:blur(70px);opacity:.5;
  will-change:transform}
.aurora::before{width:520px;height:520px;left:-6%;top:8%;
  background:radial-gradient(circle,rgba(124,92,255,.6),transparent 70%);animation:float1 16s ease-in-out infinite}
.aurora::after{width:460px;height:460px;right:-4%;top:30%;
  background:radial-gradient(circle,rgba(55,224,216,.5),transparent 70%);animation:float2 20s ease-in-out infinite}
@keyframes float1{50%{transform:translate(60px,40px) scale(1.1)}}
@keyframes float2{50%{transform:translate(-50px,60px) scale(1.08)}}
.stars{position:fixed;inset:0;z-index:-2;pointer-events:none;opacity:.55;
  background-image:
    radial-gradient(1.6px 1.6px at 20% 30%,#fff,transparent),
    radial-gradient(1.6px 1.6px at 70% 60%,#fff,transparent),
    radial-gradient(1px 1px at 40% 80%,#fff,transparent),
    radial-gradient(1px 1px at 85% 22%,#fff,transparent),
    radial-gradient(1.6px 1.6px at 55% 15%,#fff,transparent),
    radial-gradient(1px 1px at 10% 68%,#fff,transparent),
    radial-gradient(1.3px 1.3px at 92% 78%,#fff,transparent),
    radial-gradient(1px 1px at 32% 48%,#fff,transparent);
  animation:twinkle 6s ease-in-out infinite alternate}
@keyframes twinkle{from{opacity:.28}to{opacity:.62}}

.wrap{max-width:var(--maxw);margin:0 auto;padding:0 22px}

/* ===== ヘッダー ===== */
header{position:sticky;top:0;z-index:60;backdrop-filter:blur(14px);
  background:rgba(7,8,20,.55);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;height:66px}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;letter-spacing:.02em;font-size:1.02rem}
.logo .spark{font-size:1.35rem;filter:drop-shadow(0 0 8px rgba(124,92,255,.85));animation:spin 8s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.logo b{background:linear-gradient(90deg,var(--brand1),var(--brand2));-webkit-background-clip:text;background-clip:text;color:transparent}
.nav .links{display:flex;align-items:center;gap:22px}
.nav .links a{font-size:.9rem;color:var(--muted);transition:color .2s}
.nav .links a:hover{color:var(--ink)}
.cta{font-size:.9rem;font-weight:700;padding:9px 18px;border-radius:999px;
  background:linear-gradient(90deg,var(--brand1),var(--brand3));color:#fff;
  box-shadow:0 8px 24px -8px rgba(124,92,255,.7);transition:transform .2s}
.cta:hover{transform:translateY(-2px)}
@media(max-width:680px){.nav .links a:not(.cta){display:none}}

/* ===== ボタン ===== */
.btn{display:inline-flex;align-items:center;gap:9px;font-weight:700;padding:14px 28px;border-radius:999px;
  transition:transform .2s,box-shadow .2s,gap .2s;font-size:1rem;cursor:pointer;border:0}
.btn.primary{background:linear-gradient(90deg,var(--c1),var(--c2));color:#fff;
  box-shadow:0 14px 34px -12px var(--c1)}
.btn.brand{background:linear-gradient(90deg,var(--brand1),var(--brand3));color:#fff;
  box-shadow:0 14px 34px -12px rgba(124,92,255,.8)}
.btn.ghost{border:1px solid var(--line2);background:var(--card);color:var(--ink)}
.btn:hover{transform:translateY(-3px)}
.btn.primary:hover,.btn.brand:hover{gap:13px}

/* ===== 汎用セクション ===== */
.sec{padding:74px 0}
.sec-head{text-align:center;margin-bottom:48px}
.sec-head .k{font-size:.78rem;letter-spacing:.3em;color:var(--brand2);font-weight:800;text-transform:uppercase}
.sec-head h2{font-size:clamp(1.65rem,4vw,2.5rem);font-weight:900;margin-top:12px;line-height:1.35}
.sec-head p{color:var(--muted);margin-top:14px}

/* ===== スクロール登場 ===== */
.js .reveal{opacity:0;transform:translateY(28px);transition:opacity .7s cubic-bezier(.22,1,.36,1),transform .7s cubic-bezier(.22,1,.36,1)}
.js .reveal.in{opacity:1;transform:none}

/* ===== グラデ文字 ===== */
.grad{background:linear-gradient(100deg,var(--brand2),var(--brand1) 45%,var(--brand3));
  background-size:200% auto;-webkit-background-clip:text;background-clip:text;color:transparent;
  animation:shine 6s linear infinite}
.grad.acc{background-image:linear-gradient(100deg,var(--c2),var(--c1))}
@keyframes shine{to{background-position:200% center}}

/* ===== トップ：ヒーロー ===== */
.hero{position:relative;text-align:center;padding:104px 0 64px}
.badge{display:inline-flex;align-items:center;gap:8px;font-size:.82rem;color:var(--muted);
  border:1px solid var(--line);padding:7px 16px;border-radius:999px;background:var(--card);margin-bottom:26px}
.badge .dot{width:8px;height:8px;border-radius:50%;background:var(--brand2);box-shadow:0 0 10px var(--brand2);
  animation:pulse 2s ease-in-out infinite}
@keyframes pulse{50%{transform:scale(1.5);opacity:.6}}
.hero h1{font-size:clamp(2.2rem,6.4vw,4.1rem);line-height:1.24;font-weight:900;letter-spacing:.01em}
.hero .lead{max-width:640px;margin:26px auto 0;color:var(--muted);font-size:clamp(1rem,2.4vw,1.18rem)}
.hero .actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;margin-top:40px}
.hero .meta{margin-top:32px;color:var(--muted);font-size:.86rem;display:flex;gap:22px;justify-content:center;flex-wrap:wrap}
.hero .meta span{display:inline-flex;align-items:center;gap:7px}

/* 浮遊するひみつ道具アイコン */
.floaties{position:absolute;inset:0;z-index:-1;pointer-events:none;overflow:hidden}
.floaties i{position:absolute;font-size:2rem;opacity:.4;filter:drop-shadow(0 6px 14px rgba(0,0,0,.4));animation:bob 7s ease-in-out infinite}
.floaties i:nth-child(1){left:8%;top:22%;animation-delay:0s}
.floaties i:nth-child(2){right:10%;top:18%;font-size:2.4rem;animation-delay:.8s}
.floaties i:nth-child(3){left:14%;bottom:16%;font-size:1.7rem;animation-delay:1.6s}
.floaties i:nth-child(4){right:16%;bottom:20%;animation-delay:2.4s}
.floaties i:nth-child(5){left:46%;top:8%;font-size:1.5rem;animation-delay:1.1s}
@keyframes bob{50%{transform:translateY(-22px) rotate(6deg)}}

/* ===== 流れるテキスト（マーキー） ===== */
.marquee{overflow:hidden;border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  padding:16px 0;-webkit-mask:linear-gradient(90deg,transparent,#000 12%,#000 88%,transparent)}
.marquee .track{display:inline-flex;gap:38px;white-space:nowrap;animation:scrollx 26s linear infinite;will-change:transform}
.marquee span{font-weight:800;font-size:1.05rem;color:var(--muted2)}
.marquee span b{color:var(--brand2)}
@keyframes scrollx{to{transform:translateX(-50%)}}

/* ===== アプリカードグリッド ===== */
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:22px}
.card{position:relative;display:flex;flex-direction:column;border:1px solid var(--line);background:var(--card);
  border-radius:var(--radius);padding:28px 26px 26px;overflow:hidden;
  transition:transform .35s cubic-bezier(.22,1,.36,1),border-color .3s,background .3s,box-shadow .3s;
  transform-style:preserve-3d}
.card:hover{border-color:var(--line2);background:var(--card-hi);box-shadow:var(--shadow)}
.card::before{content:"";position:absolute;inset:-1px;border-radius:inherit;padding:1px;
  background:linear-gradient(130deg,var(--k1),transparent 42%);
  -webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);
  -webkit-mask-composite:xor;mask-composite:exclude;opacity:.6;pointer-events:none}
.card .spot{position:absolute;inset:0;opacity:0;transition:opacity .3s;pointer-events:none;
  background:radial-gradient(220px circle at var(--mx,50%) var(--my,0%),color-mix(in srgb,var(--k1) 26%,transparent),transparent 60%)}
.card:hover .spot{opacity:1}
.card .ico{font-size:2rem;width:62px;height:62px;display:grid;place-items:center;border-radius:17px;
  background:linear-gradient(135deg,var(--k1),var(--k2));box-shadow:0 10px 26px -10px var(--k1)}
.card h3{font-size:1.3rem;font-weight:800;margin:18px 0 4px}
.card .tag{font-size:.78rem;color:var(--k2);font-weight:700}
.card .desc{color:var(--muted);font-size:.94rem;margin-top:14px;flex:1}
.card .foot{margin-top:20px;display:flex;align-items:center;justify-content:space-between}
.card .more{display:inline-flex;align-items:center;gap:7px;font-weight:700;font-size:.92rem;color:var(--k2);transition:gap .2s}
.card:hover .more{gap:11px}
.card .go{font-size:.8rem;color:var(--muted2);border:1px solid var(--line);padding:7px 13px;border-radius:999px;transition:color .2s,border-color .2s}
.card .go:hover{color:var(--ink);border-color:var(--line2)}

/* ===== 統計カウンター ===== */
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:18px;text-align:center}
.stat{border:1px solid var(--line);background:var(--card);border-radius:18px;padding:26px 18px}
.stat .num{font-size:2.4rem;font-weight:900;line-height:1}
.stat .lbl{color:var(--muted);font-size:.9rem;margin-top:8px}

/* ===== 特長 ===== */
.feats{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:18px}
.feat{border:1px solid var(--line);background:var(--card);border-radius:18px;padding:26px;transition:transform .3s,border-color .3s}
.feat:hover{transform:translateY(-4px);border-color:var(--line2)}
.feat .fi{font-size:1.7rem}
.feat h4{margin:12px 0 6px;font-size:1.06rem}
.feat p{color:var(--muted);font-size:.9rem}

/* ===== フッター ===== */
footer{border-top:1px solid var(--line);margin-top:24px;padding:48px 0 60px;text-align:center;color:var(--muted)}
footer .logo{justify-content:center;margin-bottom:14px}
footer .fnav{display:flex;flex-wrap:wrap;gap:8px 20px;justify-content:center;margin:18px 0;font-size:.88rem}
footer .fnav a{color:var(--muted);transition:color .2s}
footer .fnav a:hover{color:var(--brand2)}
footer small{display:block;margin-top:18px;font-size:.8rem;opacity:.7}

/* =========================================================
   個別ページ（アプリ詳細）
   ========================================================= */
.app-hero{position:relative;padding:88px 0 60px;overflow:hidden}
.app-hero .glow{position:absolute;z-index:-1;top:-160px;left:50%;transform:translateX(-50%);
  width:760px;height:520px;border-radius:50%;filter:blur(90px);opacity:.5;
  background:radial-gradient(circle,var(--c1),transparent 70%)}
.crumb{font-size:.85rem;color:var(--muted);margin-bottom:26px}
.crumb a:hover{color:var(--brand2)}
.app-hero .top{display:flex;gap:26px;align-items:center;flex-wrap:wrap}
.app-hero .bigico{font-size:3rem;width:104px;height:104px;flex:none;display:grid;place-items:center;border-radius:28px;
  background:linear-gradient(135deg,var(--c1),var(--c2));box-shadow:0 20px 50px -16px var(--c1);
  animation:bob 6s ease-in-out infinite}
.app-hero h1{font-size:clamp(2rem,5.4vw,3.2rem);font-weight:900;line-height:1.2}
.app-hero .sub{color:var(--c2);font-weight:800;letter-spacing:.04em;margin-top:6px}
.app-hero .desc{max-width:620px;color:var(--muted);font-size:1.08rem;margin-top:22px}
.app-hero .actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:30px}

/* 端末モック */
.mock{position:relative;margin:0 auto;max-width:340px;border:1px solid var(--line2);border-radius:26px;
  background:linear-gradient(180deg,rgba(255,255,255,.06),rgba(255,255,255,.02));
  box-shadow:var(--shadow);padding:16px;backdrop-filter:blur(6px)}
.mock .bar{display:flex;gap:6px;margin-bottom:14px}
.mock .bar i{width:10px;height:10px;border-radius:50%;background:var(--line2)}
.mock .screen{border-radius:16px;background:rgba(0,0,0,.28);padding:18px;min-height:210px;
  display:flex;flex-direction:column;gap:12px}
.mock .row{height:14px;border-radius:7px;background:linear-gradient(90deg,var(--c1),transparent);opacity:.55}
.mock .row.s{width:60%}.mock .row.m{width:82%}
.mock .chip{align-self:flex-start;font-size:.8rem;font-weight:700;padding:6px 12px;border-radius:999px;
  background:linear-gradient(90deg,var(--c1),var(--c2));color:#fff}
.mock .big{font-size:2.4rem;text-align:center;margin:auto}

/* ユースケース */
.uses{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:18px}
.use{border:1px solid var(--line);background:var(--card);border-radius:18px;padding:26px;transition:transform .3s,border-color .3s}
.use:hover{transform:translateY(-5px);border-color:var(--c1)}
.use .ui{font-size:1.7rem}
.use h4{margin:12px 0 6px}
.use p{color:var(--muted);font-size:.92rem}

/* できること（機能） */
.feature-list{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:16px}
.fl{display:flex;gap:16px;align-items:flex-start;border:1px solid var(--line);background:var(--card);
  border-radius:16px;padding:22px}
.fl .fi{font-size:1.4rem;width:46px;height:46px;flex:none;display:grid;place-items:center;border-radius:12px;
  background:color-mix(in srgb,var(--c1) 22%,transparent);color:#fff}
.fl h4{font-size:1.04rem;margin-bottom:4px}
.fl p{color:var(--muted);font-size:.9rem}

/* 使い方ステップ（縦のタイムライン） */
.flow{max-width:760px;margin:0 auto;position:relative}
.flow::before{content:"";position:absolute;left:27px;top:8px;bottom:8px;width:2px;
  background:linear-gradient(var(--c1),var(--c2));opacity:.4}
.step{position:relative;display:flex;gap:22px;padding:14px 0}
.step .n{flex:none;width:56px;height:56px;border-radius:50%;display:grid;place-items:center;font-weight:900;
  font-size:1.2rem;color:#fff;background:linear-gradient(135deg,var(--c1),var(--c2));
  box-shadow:0 10px 24px -10px var(--c1);z-index:1}
.step .txt h4{font-size:1.12rem;margin-bottom:4px}
.step .txt p{color:var(--muted);font-size:.94rem}

/* タイプカード（性格診断用） */
.types{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:20px}
.type{border:1px solid var(--line);background:var(--card);border-radius:20px;padding:30px 26px;text-align:center;
  transition:transform .3s,border-color .3s}
.type:hover{transform:translateY(-6px)}
.type .e{font-size:3rem}
.type h4{font-size:1.3rem;margin:10px 0 4px}
.type .p{font-weight:700;margin-bottom:10px}
.type p{color:var(--muted);font-size:.92rem}
.type.hayabusa{--tc:#7cc4ff}.type.cheetah{--tc:#ffca5c}.type.dolphin{--tc:#5cffd0}
.type h4{color:var(--tc)}

/* CTA帯 */
.cta-band{border:1px solid var(--line2);border-radius:26px;padding:48px 32px;text-align:center;position:relative;overflow:hidden;
  background:linear-gradient(135deg,color-mix(in srgb,var(--c1) 18%,transparent),color-mix(in srgb,var(--c2) 10%,transparent))}
.cta-band h2{font-size:clamp(1.5rem,4vw,2.2rem);font-weight:900}
.cta-band p{color:var(--muted);margin:12px 0 26px}

/* 次のアプリへ */
.pager{display:flex;justify-content:space-between;gap:14px;margin-top:34px;flex-wrap:wrap}
.pager a{flex:1;min-width:220px;border:1px solid var(--line);background:var(--card);border-radius:16px;padding:18px 22px;
  transition:border-color .3s,transform .3s}
.pager a:hover{border-color:var(--line2);transform:translateY(-3px)}
.pager .dir{font-size:.78rem;color:var(--muted2)}
.pager .nm{font-weight:800;margin-top:4px}
.pager a.next{text-align:right}

@media(max-width:560px){
  .hero{padding:74px 0 44px}
  .sec{padding:54px 0}
  .card{padding:24px 22px}
  .app-hero{padding:64px 0 44px}
  .app-hero .bigico{width:84px;height:84px;font-size:2.4rem}
}

/* =========================================================
   端末モックの中身（各アプリの実画面を再現する部品）
   ========================================================= */
.mock.light .screen{background:#f6f7fb;color:#1a1f36;gap:10px}
.mm-title{font-weight:900;text-align:center;font-size:1.15rem;letter-spacing:.06em}
.mm-sub{text-align:center;font-size:.72rem;opacity:.65;margin-top:-6px}
.mm-hd{display:flex;align-items:center;gap:8px;font-weight:900;font-size:.95rem}
.mm-hd .r{width:24px;height:24px;border-radius:6px;background:linear-gradient(135deg,var(--c1),var(--c2));display:grid;place-items:center;font-size:.72rem;color:#fff}
.mm-hd .k{font-size:.56rem;letter-spacing:.2em;opacity:.6;font-weight:800}
.mm-chips{display:flex;gap:6px}
.mm-chip{flex:1;text-align:center;font-size:.74rem;font-weight:700;padding:8px 6px;border-radius:10px;border:1px solid var(--line2)}
.mm-chip.on{background:linear-gradient(90deg,var(--c1),var(--c2));color:#fff;border-color:transparent}
.mm-tabs{display:flex;gap:6px}
.mm-tab{flex:1;text-align:center;font-size:.74rem;font-weight:800;padding:9px 6px;border-radius:10px;border:1px solid var(--line2)}
.mm-tab.on{background:var(--c1);color:#fff;border-color:transparent}
.mm-box{border:1px dashed var(--line2);border-radius:10px;padding:14px 10px;text-align:center;font-size:.76rem;opacity:.85}
.mm-toggle{display:flex;border:1px solid var(--line2);border-radius:999px;overflow:hidden;font-size:.7rem;font-weight:800;flex:none}
.mm-toggle span{padding:6px 12px}
.mm-toggle span.on{background:linear-gradient(90deg,var(--c1),var(--c2));color:#fff}
.mm-btnrow{display:flex;gap:5px}
.mm-btn{flex:1;font-size:.66rem;text-align:center;padding:7px 4px;border-radius:8px;border:1px solid var(--line2);font-weight:700}
.mm-btn.pri{background:linear-gradient(90deg,var(--c1),var(--c2));color:#fff;border-color:transparent}
.mm-tbl{width:100%;font-size:.66rem;border-collapse:collapse}
.mm-tbl th{text-align:left;opacity:.55;font-weight:800;padding:5px 6px;border-bottom:1px solid var(--line2)}
.mm-tbl td{padding:6px 6px;border-bottom:1px solid var(--line2)}
.mm-field{border:1px solid var(--line2);border-radius:9px;padding:10px 12px;font-size:.76rem;opacity:.6}
.mm-grid{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.mm-jkt{aspect-ratio:5/3;border-radius:10px;display:grid;place-items:center;text-align:center;font-size:.72rem;font-weight:900;color:#fff;padding:6px;line-height:1.25;text-shadow:0 1px 4px rgba(0,0,0,.5)}
.mm-map{position:relative;border-radius:12px;min-height:172px;overflow:hidden;
  background:radial-gradient(120% 90% at 60% 40%,#cfeaff,#e6f3ea)}
.mm-map .land{position:absolute;inset:16% 26% 12% 30%;background:#cfe4c8;border-radius:46% 54% 50% 50%/60% 40% 60% 40%;transform:rotate(28deg);opacity:.9}
.mm-pin{position:absolute;width:13px;height:13px;border-radius:50% 50% 50% 0;transform:rotate(-45deg);box-shadow:0 2px 4px rgba(0,0,0,.3)}
.mm-legend{display:flex;gap:10px;flex-wrap:wrap;font-size:.68rem;font-weight:700}
.mm-legend span{display:inline-flex;align-items:center;gap:5px}
.mm-legend i{width:10px;height:10px;border-radius:50%}
.mm-bubble{align-self:flex-start;max-width:82%;background:linear-gradient(135deg,var(--c1),var(--c2));color:#fff;font-size:.78rem;font-weight:700;padding:9px 13px;border-radius:14px 14px 14px 3px;box-shadow:0 6px 16px -8px var(--c1)}
.mm-answers{display:flex;flex-direction:column;gap:6px;align-self:stretch}
.mm-answers span{border:1px solid var(--line2);border-radius:10px;padding:8px 12px;font-size:.74rem;font-weight:700}
.mm-rec{width:54px;height:54px;border-radius:50%;background:#ff4646;margin:2px auto;border:4px solid rgba(255,255,255,.14);box-shadow:0 0 0 5px rgba(255,70,70,.18)}
.mm-face{font-size:3.4rem;text-align:center;line-height:1}
.mm-time{text-align:center;font-weight:800;letter-spacing:.08em;font-family:ui-monospace,Menlo,Consolas,monospace}
/* ライトモック内は境界線を濃く */
.mock.light .mm-chip,.mock.light .mm-tab,.mock.light .mm-btn,.mock.light .mm-field,.mock.light .mm-box,
.mock.light .mm-toggle,.mock.light .mm-answers span{border-color:rgba(0,0,0,.16)}
.mock.light .mm-tbl th,.mock.light .mm-tbl td{border-color:rgba(0,0,0,.1)}
.mock.light .mm-sub{opacity:.6}

/* ===== FAQ（アコーディオン） ===== */
.faq{max-width:760px;margin:0 auto;display:flex;flex-direction:column;gap:12px}
.faq details{border:1px solid var(--line);background:var(--card);border-radius:14px;padding:0 20px;transition:border-color .3s,background .3s}
.faq details[open]{border-color:var(--line2);background:var(--card-hi)}
.faq summary{cursor:pointer;list-style:none;padding:18px 0;font-weight:700;display:flex;justify-content:space-between;gap:14px;align-items:center}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"＋";color:var(--brand2);font-weight:900;font-size:1.2rem;transition:transform .3s;flex:none}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq .a{color:var(--muted);padding:0 0 18px;font-size:.94rem}