:root{--bg:#07131f;--bg2:#0b1d2a;--card:#102635;--line:#254356;--text:#f4f3ee;--muted:#aebec8;--accent:#80d7de;--warm:#f2c7a8;--danger:#ff9b9b;--radius:22px;--shadow:0 16px 50px rgba(0,0,0,.28)}*{box-sizing:border-box}html{background:var(--bg)}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Hiragino Kaku Gothic ProN","Yu Gothic",Meiryo,sans-serif;color:var(--text);background:radial-gradient(circle at 80% 0,#143447 0,transparent 40%),linear-gradient(180deg,var(--bg2),var(--bg));min-height:100vh}.shell{max-width:760px;margin:auto;min-height:100vh;padding:calc(16px + env(safe-area-inset-top)) 16px calc(92px + env(safe-area-inset-bottom))}.topbar{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}.eyebrow{font-size:11px;letter-spacing:.17em;color:var(--accent)}h1{font-family:serif;font-weight:600;letter-spacing:.08em;margin:3px 0 0;font-size:26px}.ghost,.close{background:transparent;color:var(--text);border:1px solid var(--line);border-radius:999px;padding:9px 14px}.card{background:linear-gradient(155deg,rgba(16,38,53,.95),rgba(10,28,40,.96));border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:28px}.hero{padding:34px 28px 30px;position:relative;overflow:hidden}.hero:after{content:"";position:absolute;width:190px;height:190px;border-radius:50%;background:radial-gradient(circle,rgba(242,199,168,.22),transparent 70%);right:-60px;top:-50px}.date{color:var(--muted);font-size:13px}.hero h2{font-family:"Yu Mincho","Hiragino Mincho ProN",serif;font-size:clamp(31px,9vw,48px);line-height:1.35;letter-spacing:.02em;margin:22px 0 14px}.lead{font-family:"Yu Mincho","Hiragino Mincho ProN",serif;color:#e8ecec;line-height:1.8;font-size:17px}.primary{width:100%;margin-top:18px;background:linear-gradient(90deg,var(--accent),#bcecef);color:#08202a;border:0;border-radius:16px;padding:16px;font-weight:800;font-size:16px}.section{margin:34px 0 24px}.section>h3,.compact h3{font-family:"Yu Mincho","Hiragino Mincho ProN",serif;font-size:22px;margin:0 0 18px}.grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}.feature{min-height:138px;text-align:left;background:rgba(16,38,53,.86);color:var(--text);border:1px solid var(--line);border-radius:18px;padding:17px}.feature span{display:block;color:var(--accent);font-size:12px;margin-bottom:17px}.feature b{display:block;font-size:16px;margin-bottom:8px}.feature small{display:block;color:var(--muted);font-size:12px;line-height:1.55}.compact{padding:22px}.compact p{color:var(--muted);line-height:1.75;margin:0}.bottom{position:fixed;left:50%;bottom:0;transform:translateX(-50%);width:min(760px,100%);display:grid;grid-template-columns:repeat(4,1fr);background:rgba(7,19,31,.94);backdrop-filter:blur(12px);border-top:1px solid var(--line);padding:10px 12px calc(10px + env(safe-area-inset-bottom));z-index:10}.bottom button{background:none;border:0;color:var(--muted);padding:9px 4px;font-size:12px}.bottom button.active{color:var(--accent)}.modal{position:fixed;inset:0;background:rgba(0,0,0,.64);z-index:30;padding:12px;display:flex;align-items:flex-end;justify-content:center}.modal[hidden]{display:none}.panel{width:min(720px,100%);max-height:90vh;overflow:auto;background:#0d2230;border:1px solid var(--line);border-radius:24px 24px 12px 12px;padding:24px;position:relative;box-shadow:var(--shadow)}.close{position:absolute;right:16px;top:16px;font-size:18px;padding:5px 11px}.panel h2{font-family:"Yu Mincho","Hiragino Mincho ProN",serif;font-size:28px;margin:0 44px 20px 0}.panel p{color:var(--muted);line-height:1.75}.choice{display:block;width:100%;margin:10px 0;padding:15px 16px;text-align:left;border-radius:14px;border:1px solid var(--line);background:#102c3c;color:var(--text);font-size:15px}.choice:hover,.choice:focus{border-color:var(--accent)}.notice{border-left:3px solid var(--warm);padding:12px 14px;background:rgba(242,199,168,.08);border-radius:8px;line-height:1.7}.danger{border-left-color:var(--danger);background:rgba(255,155,155,.08)}.row{display:flex;gap:10px;align-items:center;flex-wrap:wrap}.timer{font-variant-numeric:tabular-nums;font-size:54px;font-weight:700;letter-spacing:.03em;text-align:center;margin:24px 0}.field{width:100%;background:#0a1a25;color:var(--text);border:1px solid var(--line);border-radius:12px;padding:13px;font-size:16px}.label{display:block;margin:16px 0 7px;color:var(--muted);font-size:13px}.secondary{background:#173548;color:var(--text);border:1px solid var(--line);border-radius:12px;padding:12px 16px}.saved{color:var(--accent);font-size:13px}.steps{padding-left:20px}.steps li{margin:10px 0;color:var(--muted);line-height:1.6}@media(max-width:420px){.grid{grid-template-columns:1fr}.hero{padding:28px 22px}.card{padding:22px}.feature{min-height:116px}.panel{padding:22px 18px}.timer{font-size:44px}}@media(prefers-reduced-motion:no-preference){button{transition:transform .15s ease,border-color .2s}.primary:active,.feature:active{transform:scale(.985)}}