/* ================= HAMACHI Project — renewal ================= */
:root{
  --bg:#eef4f8;          /* イラストの白に馴染む淡ブルーグレー */
  --ink:#3b4046;          /* 手描き線のチャコール */
  --ink-soft:#5d6871;
  --accent:#4f88b5;       /* イラスト背景ブルーの濃色 */
  --accent2:#78aed1;      /* イラスト背景そのままのブルー */
  --yellow:#f2d24b;       /* 手描きの黄色アクセント */
  --dark:#2b3742;         /* ダークもブルー寄りに */
  --dark-2:#37444f;
  --cream:#f5f9fb;        /* イラストのオフホワイト */
  --radius:20px;
  --ff-jp:'Zen Kaku Gothic New',sans-serif;
  --ff-en:'Outfit',sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;background:var(--bg)}
body{font-family:var(--ff-jp);background:none;color:var(--ink);line-height:1.9;overflow-x:hidden}

/* ---- interactive background (cursor-reactive) ---- */
.bg-glow{position:fixed;inset:0;z-index:-1;pointer-events:none;
  background:
    radial-gradient(640px circle at var(--mx,50%) var(--my,40%), rgba(120,174,209,.45), transparent 62%),
    radial-gradient(980px circle at calc(100% - var(--mx,50%)) calc(100% - var(--my,60%)), rgba(242,210,75,.28), transparent 68%),
    radial-gradient(1400px circle at var(--mx,50%) 110%, rgba(120,174,209,.18), transparent 70%);
  filter:hue-rotate(var(--hue,0deg))}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
em{font-style:normal;color:var(--accent)}
::selection{background:var(--yellow)}

/* ---- custom cursor ---- */
.cursor{position:fixed;top:0;left:0;width:14px;height:14px;border-radius:50%;background:var(--accent);pointer-events:none;z-index:9999;transform:translate(-50%,-50%);transition:width .25s,height .25s,opacity .25s,background .25s;mix-blend-mode:multiply;opacity:0}
body.cursor-on .cursor{opacity:.85}
.cursor.grow{width:56px;height:56px;background:var(--accent2);opacity:.5}
@media (hover:none){.cursor{display:none}}

/* ---- header ---- */
.header{position:fixed;inset:0 0 auto;display:flex;align-items:center;justify-content:space-between;padding:18px clamp(20px,4vw,48px);z-index:100;transition:background .3s,box-shadow .3s,padding .3s}
.header.scrolled{background:rgba(238,244,248,.9);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);box-shadow:0 1px 0 rgba(59,64,70,.08);padding:12px clamp(20px,4vw,48px)}
.logo{font-family:var(--ff-en);font-weight:800;font-size:1.3rem;letter-spacing:.02em}
.logo span{color:var(--accent);font-weight:600}
.nav{display:flex;gap:clamp(14px,2.4vw,30px);align-items:center;font-weight:700;font-size:.92rem}
.nav a{position:relative;padding:4px 2px}
.nav a:not(.nav-cta)::after{content:'';position:absolute;left:0;bottom:-2px;height:2px;width:100%;background:var(--accent);transform:scaleX(0);transform-origin:right;transition:transform .3s}
.nav a:not(.nav-cta):hover::after{transform:scaleX(1);transform-origin:left}
.nav-cta{background:var(--ink);color:var(--cream);padding:10px 22px;border-radius:99px;transition:background .3s,transform .3s}
.nav-cta:hover{background:var(--accent)}
.menu-btn{display:none}

/* ---- hero ---- */
.hero{position:relative;min-height:100svh;display:flex;flex-direction:column;justify-content:center;padding:120px clamp(20px,6vw,80px) 0;overflow:hidden}
.hero-bg{position:absolute;inset:0;z-index:-1;filter:hue-rotate(var(--hue,0deg))}
.blob{position:absolute;border-radius:50%;filter:blur(70px);opacity:.55;animation:float 12s ease-in-out infinite;will-change:translate;transition:translate .15s linear}
.blob-1{width:46vw;height:46vw;background:var(--accent2);top:-12%;right:-8%}
.blob-2{width:34vw;height:34vw;background:var(--yellow);bottom:-6%;left:-10%;animation-delay:-4s;opacity:.4}
.blob-3{width:22vw;height:22vw;background:#b9d6ea;top:38%;left:32%;animation-delay:-8s}
@keyframes float{0%,100%{transform:translate(0,0) scale(1)}50%{transform:translate(3%,-5%) scale(1.08)}}
.hero-eyebrow{font-family:var(--ff-en);font-weight:600;letter-spacing:.14em;font-size:clamp(.72rem,1.4vw,.9rem);color:var(--ink-soft);margin-bottom:18px}
/* 1行12文字（全角）でも収まるよう vw 主体でスケールさせる */
.hero-title{font-weight:900;font-size:clamp(1.7rem,6.9vw,5rem);line-height:1.34;letter-spacing:.01em}
.hero-title .line{display:block;overflow:hidden}
.hero-title .line>span{display:inline-block;transform:translateY(110%);animation:rise .9s cubic-bezier(.22,1,.36,1) forwards}
.hero-title .line:nth-child(2)>span{animation-delay:.15s}
@keyframes rise{to{transform:translateY(0)}}
.hero-title .accent{background:linear-gradient(120deg,var(--accent),var(--accent2));-webkit-background-clip:text;background-clip:text;color:transparent;text-decoration:underline;text-decoration-color:var(--yellow);text-decoration-thickness:6px;text-underline-offset:10px}
.hero-lead{margin-top:26px;font-size:clamp(.95rem,1.8vw,1.15rem);color:var(--ink-soft);font-weight:500}
.hero-actions{display:flex;gap:16px;margin-top:38px;flex-wrap:wrap}

/* ---- buttons ---- */
.btn{display:inline-flex;align-items:center;gap:10px;font-weight:700;font-size:1rem;padding:16px 34px;border-radius:99px;border:2px solid var(--ink);cursor:pointer;transition:transform .3s cubic-bezier(.22,1,.36,1),background .3s,color .3s,box-shadow .3s;will-change:transform}
.btn-primary{background:var(--ink);color:var(--cream)}
.btn-primary:hover{background:var(--accent);border-color:var(--accent);box-shadow:0 12px 30px rgba(79,136,181,.4)}
.btn-ghost{background:transparent;color:var(--ink)}
.btn-ghost:hover{background:var(--ink);color:var(--cream)}
.section-dark .btn-ghost{border-color:var(--cream);color:var(--cream)}
.section-dark .btn-ghost:hover{background:var(--cream);color:var(--ink)}
.btn-arrow{transition:transform .3s}
.btn:hover .btn-arrow{transform:translateX(6px)}

/* ---- marquee ---- */
.marquee{position:absolute;bottom:0;left:0;width:100%;padding:18px 0;border-top:2px solid var(--ink);background:var(--cream);overflow:hidden}
.marquee-track{display:flex;white-space:nowrap;animation:marquee 24s linear infinite;font-family:var(--ff-en);font-weight:800;font-size:1.05rem;letter-spacing:.08em;color:var(--ink)}
.marquee:hover .marquee-track{animation-play-state:paused}
@keyframes marquee{to{transform:translateX(-50%)}}
.mq-group{display:inline-flex;align-items:center}
.mq-group i{font-style:normal;margin:0 14px;color:var(--accent2)}
.mq-item{cursor:pointer;padding:2px 6px;border-radius:8px;transition:color .25s,background .25s,transform .25s}
.mq-item:hover{color:var(--cream);background:var(--accent);transform:translateY(-3px)}
/* MV はプレビューではなく「これまでの作品」へのリンク */
.mq-link{text-decoration:underline;text-decoration-color:var(--accent2);text-decoration-thickness:2px;text-underline-offset:4px}
.mq-link:hover{text-decoration-color:var(--yellow)}
/* プレビュー枠は素材（正方形写真）に合わせて 1:1 */
.mq-preview{position:fixed;width:230px;aspect-ratio:1;border-radius:14px;border:3px solid var(--ink);overflow:hidden;pointer-events:none;z-index:150;background:var(--cream);box-shadow:8px 8px 0 var(--yellow);transform:translate(-50%,-112%) scale(.6) rotate(-4deg);opacity:0;transition:transform .35s cubic-bezier(.22,1,.36,1),opacity .25s}
.mq-preview.show{opacity:1;transform:translate(-50%,-112%) scale(1) rotate(-2deg)}
.mq-preview img{width:100%;height:100%;object-fit:cover}

/* ---- sections ---- */
.section{padding:clamp(80px,12vw,150px) clamp(20px,6vw,80px)}
.container{max-width:1100px;margin:0 auto}
.container-narrow{max-width:820px}
.sec-label{font-family:var(--ff-en);font-weight:800;letter-spacing:.2em;font-size:.82rem;color:var(--accent);margin-bottom:14px}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap}
.sec-illust{width:clamp(96px,13vw,160px);aspect-ratio:1;border-radius:50%;flex-shrink:0;
  box-shadow:6px 6px 0 var(--yellow);animation:bob 5s ease-in-out infinite;
  transition:transform .5s cubic-bezier(.22,1,.36,1)}
.sec-illust:hover{transform:rotate(10deg) scale(1.12)}
@keyframes bob{0%,100%{translate:0 0}50%{translate:0 -10px}}
.sec-title{font-weight:900;font-size:clamp(1.8rem,4.6vw,3.2rem);line-height:1.4;margin-bottom:34px}
.sec-lead{color:var(--ink-soft);font-weight:500;max-width:640px;margin-bottom:44px}
.sub-title{font-weight:900;font-size:clamp(1.2rem,2.6vw,1.6rem);margin:70px 0 30px}
.note{font-size:.85rem;color:var(--ink-soft);margin-top:24px}
.section-dark{background:var(--dark);color:var(--cream)}
.section-dark .sec-lead,.section-dark .note{color:#a7b7c3}
.section-dark em{color:var(--accent2)}
.section-warm{background:linear-gradient(160deg,#d8e9f5,#c4dcee)}

/* ---- cursor spotlight on colored sections ---- */
.section-dark,.section-warm,.footer{position:relative}
.section-dark::before,.footer::before{content:'';position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(560px circle at var(--sx,50%) var(--sy,50%), rgba(120,174,209,.3), rgba(242,210,75,.08) 45%, transparent 65%);
  opacity:0;transition:opacity .5s}
.section-dark:hover::before,.footer:hover::before{opacity:1}
.section-warm::before{content:'';position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(520px circle at var(--sx,50%) var(--sy,50%), rgba(255,255,255,.65), transparent 60%);
  opacity:0;transition:opacity .5s;mix-blend-mode:soft-light}
.section-warm:hover::before{opacity:1}
.section-dark>*,.section-warm>*,.footer>*{position:relative}

/* ---- concept ---- */
.concept-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px;max-width:960px}
.concept-text{font-size:1.05rem;font-weight:500}
.concept-text strong{background:linear-gradient(transparent 62%,var(--yellow) 62%)}

/* ---- cards ---- */
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:22px}
.card{background:var(--cream);border:2px solid var(--ink);border-radius:var(--radius);padding:32px 26px;transition:box-shadow .3s;transform-style:preserve-3d;will-change:transform}
.card:hover{box-shadow:10px 10px 0 var(--yellow)}
.card-icon{width:72px;height:72px;margin-bottom:16px;transition:transform .45s cubic-bezier(.22,1,.36,1)}
.card:hover .card-icon{transform:scale(1.18) rotate(-8deg)}
.card h4{font-size:1.1rem;font-weight:900;margin-bottom:8px}
.card p{font-size:.9rem;color:var(--ink-soft)}

/* ---- troubles（明るい面に置く版） ---- */
.trouble-list{list-style:none;display:grid;gap:18px;max-width:900px}
.trouble{position:relative;border:2px solid var(--ink);border-radius:var(--radius);background:rgba(245,249,251,.55);padding:26px 30px;cursor:default;overflow:hidden;transition:border-color .3s,background .3s,box-shadow .3s}
.trouble:hover,.trouble.open{border-color:var(--accent);background:var(--cream);box-shadow:6px 6px 0 var(--yellow)}
.trouble-q{display:block;font-weight:700;font-size:1.02rem}
.trouble-a{display:block;max-height:0;opacity:0;color:var(--accent);font-weight:700;transition:max-height .5s cubic-bezier(.22,1,.36,1),opacity .4s,margin .4s;overflow:hidden}
.trouble:hover .trouble-a,.trouble.open .trouble-a{max-height:160px;opacity:1;margin-top:10px}
.trouble-hint{margin-top:22px;font-size:.85rem;color:var(--ink-soft)}
/* ダーク面に置いた場合の色（将来セクションを移しても崩れないように） */
.section-dark .trouble{border-color:#4b5a67;background:transparent}
.section-dark .trouble:hover,.section-dark .trouble.open{border-color:var(--accent2);background:var(--dark-2);box-shadow:none}
.section-dark .trouble-a{color:var(--accent2)}
.section-dark .trouble-hint{color:#a7b7c3}

/* ---- concept note（補足リード文） ---- */
.concept-note{max-width:920px;margin-top:30px;font-weight:500;color:var(--ink-soft)}
.concept-note strong{color:var(--ink);background:linear-gradient(transparent 62%,var(--yellow) 62%)}

/* ---- 比較（一般的な取引 vs HAMACHI） ---- */
.compare{display:grid;grid-template-columns:1fr auto 1fr;gap:20px;align-items:stretch}
.compare-col{border:2px solid var(--ink);border-radius:var(--radius);padding:30px 26px;background:var(--cream);transition:transform .35s cubic-bezier(.22,1,.36,1)}
.compare-col:hover{transform:translateY(-4px)}
.compare-col-main{background:linear-gradient(160deg,#dfeef8,#c9e0f0);box-shadow:8px 8px 0 var(--yellow)}
.compare-head{font-weight:900;font-size:1.05rem;letter-spacing:.02em}
.compare-col-main .compare-head{color:var(--accent)}
.compare-formula{font-weight:900;font-size:clamp(1.05rem,2.4vw,1.35rem);margin:4px 0 18px;padding-bottom:16px;border-bottom:2px dashed #b9cdda}
.compare-formula span{color:var(--accent);margin:0 6px}
.compare-list{list-style:none;display:grid;gap:9px;font-size:.92rem;color:var(--ink-soft);font-weight:500}
.compare-list li{position:relative;padding-left:24px;line-height:1.7}
.compare-list li::before{content:'—';position:absolute;left:2px;color:#9fb3c0}
.compare-col-main .compare-list li{color:var(--ink)}
.compare-col-main .compare-list li::before{content:'✓';color:var(--accent);font-weight:900}
.compare-vs{align-self:center;font-family:var(--ff-en);font-weight:800;font-size:1.1rem;color:var(--ink-soft)}

/* ---- 5つの価値（ダーク面） ---- */
.values{list-style:none;display:grid;gap:20px}
.value{display:grid;grid-template-columns:auto 1fr;gap:6px 22px;border:2px solid #4b5a67;border-radius:var(--radius);padding:28px 30px;
  transition:border-color .3s,background .3s,transform .35s cubic-bezier(.22,1,.36,1)}
.value:hover{border-color:var(--accent2);background:var(--dark-2);transform:translateY(-5px)}
.value-num{font-family:var(--ff-en);font-weight:800;font-size:1.9rem;line-height:1.15;color:var(--accent2)}
.value-body h4{font-size:1.15rem;font-weight:900;margin-bottom:8px}
.value-body>p{font-size:.92rem;color:#c2d0da}
.value blockquote{margin-top:14px;padding:2px 0 2px 16px;border-left:3px solid var(--yellow);font-size:.9rem;font-weight:500;color:#e2eaf0}
.value cite{display:block;margin-top:6px;font-style:normal;font-size:.8rem;color:#a7b7c3}

/* ---- Give and Give（循環の宣言パネル） ---- */
.circulate{margin-top:56px;border:2px solid var(--ink);border-radius:var(--radius);
  background:linear-gradient(160deg,#dfeef8,#c9e0f0);box-shadow:10px 10px 0 var(--yellow);
  padding:clamp(28px,4vw,46px)}
.circulate-label{display:inline-block;background:var(--ink);color:var(--cream);font-weight:700;font-size:.8rem;padding:5px 18px;border-radius:99px;margin-bottom:18px}
.circulate-text{font-weight:900;font-size:clamp(1.2rem,3.2vw,1.9rem);line-height:1.6;margin-bottom:20px}
.circulate-text strong{color:var(--accent);text-decoration:underline;text-decoration-color:var(--yellow);text-decoration-thickness:5px;text-underline-offset:6px}
.circulate-sub{font-weight:500;color:#3b4854;font-size:.98rem}
.circulate-sub + .circulate-sub{margin-top:14px}
.circulate-sub strong{background:linear-gradient(transparent 62%,var(--yellow) 62%)}

/* ---- できること（サービス一覧） ---- */
.services{display:grid;grid-template-columns:repeat(auto-fit,minmax(232px,1fr));gap:22px}
.service{background:var(--cream);border:2px solid var(--ink);border-radius:var(--radius);padding:30px 24px;
  transition:box-shadow .3s,transform .35s cubic-bezier(.22,1,.36,1)}
.service:hover{box-shadow:10px 10px 0 var(--yellow);transform:translateY(-5px)}
.service-icon{width:64px;height:64px;margin-bottom:14px;transition:transform .45s cubic-bezier(.22,1,.36,1)}
.service:hover .service-icon{transform:scale(1.15) rotate(-8deg)}
.service h4{font-size:1.05rem;font-weight:900;margin-bottom:8px}
.service p{font-size:.88rem;color:var(--ink-soft)}

/* ---- ルールとマナー ---- */
.rule-card{border:2px solid var(--ink);border-radius:var(--radius);background:var(--cream);padding:34px 32px;box-shadow:8px 8px 0 var(--yellow);margin-top:32px}
.rule-label{display:inline-block;background:var(--ink);color:var(--cream);font-weight:700;font-size:.8rem;padding:5px 18px;border-radius:99px;margin-bottom:16px}
.rule-text{font-size:1.05rem;font-weight:500}
.rule-text strong{background:linear-gradient(transparent 62%,var(--yellow) 62%)}

/* ---- works ---- */
.works-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:26px}
.work{cursor:pointer}
.work-thumb{position:relative;border-radius:var(--radius);overflow:hidden;border:2px solid var(--ink);aspect-ratio:16/9;background:#000}
.work-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .6s cubic-bezier(.22,1,.36,1),opacity .4s}
.work:hover .work-thumb img{transform:scale(1.07)}
.work-thumb iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
.play{position:absolute;inset:0;display:grid;place-items:center;font-size:1.2rem;color:var(--ink);pointer-events:none}
.play::before{content:'';position:absolute;width:72px;height:72px;border-radius:50%;background:var(--yellow);z-index:-1;transition:transform .4s cubic-bezier(.22,1,.36,1)}
.work:hover .play::before{transform:scale(1.2)}
.work figcaption{margin-top:14px;font-weight:700;font-size:.95rem}
.works-more{display:flex;gap:16px;margin-top:48px;flex-wrap:wrap}

/* ---- flow ---- */
.flow-steps{list-style:none;display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:22px;counter-reset:step}
.step{position:relative;border:2px solid #4b5a67;border-radius:var(--radius);padding:30px 24px;transition:transform .35s cubic-bezier(.22,1,.36,1),border-color .3s,background .3s}
.step:hover{transform:translateY(-8px);border-color:var(--accent2);background:var(--dark-2)}
.step-num{font-family:var(--ff-en);font-weight:800;font-size:2rem;color:var(--accent2);display:block;margin-bottom:8px}
.step h4{font-size:1.15rem;font-weight:900;margin-bottom:10px}
.step p{font-size:.88rem;color:#c2d0da}
.flow-next{margin-top:40px;border-left:4px solid var(--yellow);padding:12px 0 12px 22px;
  font-weight:900;font-size:clamp(1.05rem,2.6vw,1.4rem);line-height:1.7}
.flow-next strong{color:var(--accent2)}
.flow-notes{margin-top:40px;font-size:.85rem;color:#a7b7c3;display:grid;gap:6px}
.flow-illust{margin:0 0 44px;max-width:720px}
.flow-illust img{width:100%;filter:drop-shadow(0 10px 24px rgba(43,55,66,.35));transition:transform .5s cubic-bezier(.22,1,.36,1)}
.flow-illust:hover img{transform:scale(1.03)}

/* ---- reports ---- */
.report{margin-bottom:64px}
.report-head{display:flex;align-items:baseline;gap:22px;flex-wrap:wrap;margin-bottom:20px}
.report-head h3{font-size:1.3rem;font-weight:900}
.report-links{display:flex;gap:16px;font-weight:700;font-size:.9rem}
.report-links a{color:var(--accent);border-bottom:2px solid transparent;transition:border-color .3s}
.report-links a:hover{border-color:var(--accent)}
.report-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:14px}
.report-grid img{border-radius:14px;border:2px solid var(--ink);aspect-ratio:1;object-fit:cover;transition:transform .4s cubic-bezier(.22,1,.36,1),box-shadow .4s;cursor:zoom-in}
.report-grid img:hover{transform:scale(1.05) rotate(1.5deg);box-shadow:8px 8px 0 var(--yellow);z-index:2;position:relative}

/* ---- profile ---- */
.profile{display:grid;grid-template-columns:260px 1fr;gap:clamp(26px,5vw,60px);align-items:start}
.profile-photo img{border-radius:50%;border:4px solid var(--ink);width:100%;max-width:260px;aspect-ratio:1;object-fit:cover;transition:transform .5s cubic-bezier(.22,1,.36,1)}
.profile-photo:hover img{transform:rotate(-3deg) scale(1.04)}
.profile-body h3{font-size:1.6rem;font-weight:900;margin-bottom:16px}
.profile-body h3 span{font-family:var(--ff-en);font-weight:600;font-size:.9rem;color:var(--ink-soft);margin-left:12px}
.profile-body p{margin-bottom:16px;font-weight:500;color:#3b4854}
.sns{display:flex;gap:12px;flex-wrap:wrap;margin-top:8px}
.sns a{font-family:var(--ff-en);font-weight:600;font-size:.9rem;border:2px solid var(--ink);border-radius:99px;padding:8px 20px;transition:background .3s,color .3s,transform .3s}
.sns a:hover{background:var(--ink);color:var(--cream)}

/* ---- form ---- */
.form{max-width:760px;display:grid;gap:22px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.form label{display:grid;gap:8px;font-weight:700;font-size:.92rem}
.req{display:inline-block;background:var(--accent);color:#fff;font-size:.68rem;padding:1px 8px;border-radius:99px;margin-left:6px;vertical-align:2px}
.form input[type=text],.form input[type=email],.form select,.form textarea{font-family:inherit;font-size:1rem;padding:14px 16px;border-radius:12px;border:2px solid #4b5a67;background:var(--dark-2);color:var(--cream);transition:border-color .3s,box-shadow .3s;width:100%}
.form input:focus,.form select:focus,.form textarea:focus{outline:none;border-color:var(--accent2);box-shadow:0 0 0 4px rgba(242,165,60,.18)}
.form textarea{resize:vertical}
.check{grid-template-columns:auto 1fr;align-items:center;display:grid;gap:10px;font-weight:500}
.check input{width:20px;height:20px;accent-color:var(--accent)}
.check a{color:var(--accent2);text-decoration:underline}
.form .btn{justify-self:start}
.form-note{font-size:.8rem;color:#a7b7c3}
.hp{position:absolute!important;left:-9999px!important;width:1px;height:1px;opacity:0;pointer-events:none}
.form-error{color:#ffb3a1;font-weight:700;font-size:.9rem}

/* ---- accordion ---- */
.accordion{display:grid;gap:14px;margin-top:36px}
details{border:2px solid var(--ink);border-radius:16px;background:var(--cream);overflow:hidden}
summary{cursor:pointer;font-weight:900;padding:20px 24px;list-style:none;position:relative;transition:background .3s}
summary::-webkit-details-marker{display:none}
summary::after{content:'+';position:absolute;right:24px;top:50%;transform:translateY(-50%);font-family:var(--ff-en);font-size:1.4rem;font-weight:600;transition:transform .3s}
details[open] summary::after{transform:translateY(-50%) rotate(45deg)}
summary:hover{background:#e2eef7}
details p{padding:0 24px 22px;color:var(--ink-soft);font-weight:500}

/* ---- confirm page ---- */
.confirm{position:fixed;inset:0;z-index:300;background:rgba(43,55,66,.55);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);display:grid;place-items:center;padding:20px;opacity:0;pointer-events:none;transition:opacity .35s}
.confirm.open{opacity:1;pointer-events:auto}
.confirm-box{background:var(--cream);color:var(--ink);border:3px solid var(--ink);border-radius:24px;box-shadow:12px 12px 0 var(--yellow);max-width:640px;width:100%;max-height:90vh;overflow-y:auto;padding:clamp(28px,5vw,48px);transform:translateY(30px) scale(.96);transition:transform .4s cubic-bezier(.22,1,.36,1)}
.confirm.open .confirm-box{transform:none}
.confirm-box h2{font-weight:900;font-size:clamp(1.4rem,3vw,1.9rem);margin-bottom:10px}
.confirm-lead{color:var(--ink-soft);font-size:.92rem;margin-bottom:24px}
.confirm-list{display:grid;grid-template-columns:auto 1fr;gap:10px 22px;margin-bottom:30px}
.confirm-list dt{font-weight:900;font-size:.88rem;color:var(--accent);white-space:nowrap;padding-top:2px}
.confirm-list dd{font-weight:500;border-bottom:1px dashed #b9cdda;padding-bottom:8px;white-space:pre-wrap;word-break:break-word}
.confirm-actions{display:flex;gap:14px;flex-wrap:wrap;justify-content:flex-end}

/* ---- thanks page ---- */
.thanks{min-height:100svh;display:grid;place-items:center;text-align:center;padding:40px 20px}
.thanks-inner h1{font-weight:900;font-size:clamp(1.8rem,5vw,3rem);margin:26px 0 14px}
.thanks-inner p{color:var(--ink-soft);font-weight:500;margin-bottom:10px}
.thanks-inner .btn{margin-top:28px}
.thanks-illust{width:clamp(140px,20vw,220px);border-radius:50%;box-shadow:8px 8px 0 var(--yellow);margin:0 auto;animation:bob 5s ease-in-out infinite}

/* ---- footer ---- */
.footer{background:var(--dark);color:var(--cream);padding:clamp(80px,10vw,120px) clamp(20px,6vw,80px) 40px;text-align:center}
.footer-big{font-weight:900;font-size:clamp(1.6rem,4.5vw,3rem);line-height:1.5;margin-bottom:36px}
.footer-bottom{margin-top:80px;display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;font-size:.82rem;color:#8a9aa7;border-top:1px solid #3b4854;padding-top:28px}
.footer-owner{font-size:.8rem;letter-spacing:.02em}

/* ---- to top ---- */
.to-top{position:fixed;right:24px;bottom:24px;width:52px;height:52px;border-radius:50%;background:var(--accent);color:#fff;display:grid;place-items:center;font-size:1.2rem;font-weight:700;z-index:90;opacity:0;pointer-events:none;transition:opacity .3s,transform .3s;box-shadow:0 8px 20px rgba(79,136,181,.45)}
.to-top.show{opacity:1;pointer-events:auto}
.to-top:hover{transform:translateY(-4px)}

/* ---- reveal ---- */
.reveal{opacity:0;transform:translateY(36px);transition:opacity .8s cubic-bezier(.22,1,.36,1),transform .8s cubic-bezier(.22,1,.36,1)}
.reveal.in{opacity:1;transform:none}

/* ---- lightbox ---- */
.lightbox{position:fixed;inset:0;background:rgba(20,16,12,.9);display:grid;place-items:center;z-index:200;opacity:0;pointer-events:none;transition:opacity .3s;cursor:zoom-out}
.lightbox.open{opacity:1;pointer-events:auto}
.lightbox img{max-width:min(90vw,640px);max-height:85vh;border-radius:16px}

/* ---- touch fallback（タッチ端末は静的な背景グラデーション） ---- */
@media (hover:none){
  /* タッチ端末: タップの:hover固着でマーキーが止まらないようにする */
  .marquee:hover .marquee-track{animation-play-state:running}
  .mq-item:hover{color:inherit;background:none;transform:none}
  html{background:
    radial-gradient(120vw 70vh at 85% -10%, rgba(120,174,209,.35), transparent 60%),
    radial-gradient(90vw 50vh at -10% 100%, rgba(242,210,75,.22), transparent 60%),
    var(--bg)}
}

/* ---- responsive ---- */
.sp{display:none}
@media (max-width:820px){
  .sp{display:inline}
  .concept-grid,.form-row,.profile{grid-template-columns:1fr}
  .profile-photo{margin:0 auto}
  .compare{grid-template-columns:1fr;gap:16px}
  .compare-vs{text-align:center;margin:0}
  .value{grid-template-columns:1fr;gap:4px;padding:24px 22px}
  .value-num{font-size:1.5rem}
  .trouble{padding:22px 22px}
  .circulate{margin-top:44px;box-shadow:6px 6px 0 var(--yellow)}
  .flow-next{padding-left:16px}
  .hero{padding-bottom:110px} /* 下部マーキーと重ならないように */
  .hero-lead br:not(.sp){display:none}
  .sec-head{flex-wrap:nowrap;align-items:flex-start}
  .sec-illust{width:clamp(64px,18vw,96px);box-shadow:4px 4px 0 var(--yellow)}
  .sec-title{margin-bottom:24px}
  .flow-illust{margin-bottom:32px}
  .confirm-list{grid-template-columns:1fr;gap:4px}
  .confirm-list dt{margin-top:14px}
  .confirm-list dt:first-child{margin-top:0}
  .confirm-actions{flex-direction:column-reverse}
  .confirm-actions .btn{width:100%;justify-content:center}
  .works-more .btn{width:100%;justify-content:center}
  .to-top{width:46px;height:46px;right:14px;bottom:14px}
  .footer-bottom{justify-content:center;text-align:center}
  .mq-preview{width:170px}
  .btn{padding:14px 26px;font-size:.95rem}
  .menu-btn{display:flex;flex-direction:column;gap:7px;background:none;border:0;cursor:pointer;z-index:110;padding:6px}
  .menu-btn span{width:30px;height:3px;background:var(--ink);border-radius:2px;transition:transform .3s,opacity .3s}
  .menu-btn.open span:nth-child(1){transform:translateY(10px) rotate(45deg)}
  .menu-btn.open span:nth-child(2){transform:translateY(-0px) rotate(-45deg)}
  /* 重要: header の backdrop-filter は fixed 子要素(nav)の基準を
     ヘッダー自身に変えてしまうため、スマホでは無効化して不透明背景にする */
  .header.scrolled{-webkit-backdrop-filter:none;backdrop-filter:none;background:rgba(238,244,248,.97)}

  /* フルスクリーンメニュー: ハンバーガー位置から円形に展開する磨りガラス */
  .nav{position:fixed;top:0;left:0;right:0;bottom:0;flex-direction:column;justify-content:center;align-items:center;font-size:1.35rem;gap:26px;z-index:105;
    background:rgba(43,55,66,.93);
    -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
    -webkit-clip-path:circle(0px at calc(100% - 44px) 40px);
    clip-path:circle(0px at calc(100% - 44px) 40px);
    visibility:hidden;pointer-events:none;
    transition:-webkit-clip-path .5s cubic-bezier(.65,0,.35,1),clip-path .5s cubic-bezier(.65,0,.35,1),visibility 0s .5s}
  .nav.open{-webkit-clip-path:circle(150% at calc(100% - 44px) 40px);clip-path:circle(150% at calc(100% - 44px) 40px);visibility:visible;pointer-events:auto;
    transition:-webkit-clip-path .65s cubic-bezier(.22,1,.36,1),clip-path .65s cubic-bezier(.22,1,.36,1)}
  /* メニュー項目: 開いたら順番にふわっと浮き上がる */
  .nav a{color:var(--cream);opacity:0;transform:translateY(22px);
    transition:opacity .25s,transform .25s}
  .nav.open a{opacity:1;transform:none;transition:opacity .45s cubic-bezier(.22,1,.36,1),transform .55s cubic-bezier(.22,1,.36,1)}
  .nav.open a:nth-child(1){transition-delay:.12s}
  .nav.open a:nth-child(2){transition-delay:.18s}
  .nav.open a:nth-child(3){transition-delay:.24s}
  .nav.open a:nth-child(4){transition-delay:.30s}
  .nav.open a:nth-child(5){transition-delay:.36s}
  .nav.open a:nth-child(6){transition-delay:.44s}
  .nav a:not(.nav-cta)::after{background:var(--yellow)}
  .nav-cta{background:var(--yellow);color:var(--ink);margin-top:10px}
  /* 開いている間はバツ印を明色に */
  .menu-btn.open span{background:var(--cream)}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms!important;transition-duration:.01ms!important}
  .reveal{opacity:1;transform:none}
  html{scroll-behavior:auto}
}