:root{--bg: #05070c;--panel: rgba(8, 11, 19, .8);--text: #edf5ff;--text-soft: #bdd0e8;--line: rgba(169, 202, 232, .26);--neon: #89eaff;--glow: 0 12px 36px rgba(0, 0, 0, .55), 0 0 28px rgba(137, 234, 255, .2);--radius-lg: 28px;--radius-md: 18px}*{box-sizing:border-box}html,body{margin:0;min-height:100%;background:radial-gradient(1000px 600px at 92% -8%,rgba(137,234,255,.18),transparent 62%),radial-gradient(1000px 560px at 8% 0%,rgba(116,148,192,.22),transparent 56%),var(--bg);color:var(--text);font-family:Noto Sans JP,Yu Gothic,Hiragino Kaku Gothic ProN,sans-serif;scroll-behavior:smooth}a{color:var(--text);text-decoration:none}.site-wrap{width:min(960px,calc(100vw - 2.2rem));margin:0 auto;padding:1rem 0 1.4rem}.glass{border:1px solid var(--line);border-radius:var(--radius-md);box-shadow:var(--glow);background:linear-gradient(140deg,#ffffff1f,#ffffff05);backdrop-filter:blur(12px)}.site-header{position:sticky;top:.8rem;z-index:20;display:flex;align-items:center;justify-content:space-between;gap:1rem;padding:.65rem .95rem}.brand{display:inline-flex;align-items:center;gap:.6rem}.brand-mark{width:1.9rem;height:1.9rem;border-radius:10px;display:grid;place-items:center;background:#89eaff29;border:1px solid rgba(137,234,255,.5);font-weight:700}.brand-text{letter-spacing:.12em;font-size:.95rem}.main-nav{margin:0;padding:0;list-style:none;display:flex;gap:.3rem;flex-wrap:wrap;justify-content:flex-end}.nav-link{display:inline-block;padding:.45rem .72rem;border-radius:10px;font-size:.82rem;color:var(--text-soft)}.nav-link:hover,.nav-link.is-active{color:var(--text);background:#89eaff24}main{margin-top:1.3rem;display:grid;gap:1rem}.section-block{position:relative;min-height:clamp(420px,74vh,820px);border-radius:var(--radius-lg);overflow:hidden;border:1px solid rgba(192,219,242,.24);box-shadow:var(--glow);background-size:cover;background-position:center;isolation:isolate;display:flex;align-items:flex-end}.section-block:before{content:"";position:absolute;inset:0;background:linear-gradient(to top,#03060bdb 22%,#03060b59 65%,#03060b33);z-index:-1}.section-content{width:100%;padding:clamp(1.2rem,4vw,2.2rem);display:grid;gap:.8rem}.eyebrow{margin:0;letter-spacing:.17em;font-size:.78rem;color:#d7e8ff;text-transform:uppercase}h1,h2,h3,p{margin:0}.hero-title{font-size:clamp(2.1rem,6vw,4rem);line-height:1.1;letter-spacing:.04em;text-shadow:0 2px 18px rgba(0,0,0,.62)}.hero-sub{max-width:42rem;color:#d9e9fb;line-height:1.85;font-size:clamp(1rem,2vw,1.15rem)}.activity-grid{display:grid;gap:1rem;align-items:end}.content-card{background:#060a12ad;border:1px solid rgba(204,228,255,.24);border-radius:var(--radius-md);box-shadow:0 8px 30px #00000080,0 0 22px #89eaff24;padding:1rem}.content-card p+p{margin-top:.5rem}.content-placeholder{min-height:210px;border:1px dashed rgba(190,219,246,.45);border-radius:14px;display:grid;place-items:center;padding:1rem;color:var(--text-soft);background:#070a1180}.float-image{width:min(260px,45vw);border-radius:16px;border:1px solid rgba(208,229,251,.44);box-shadow:0 12px 28px #00000080,0 0 20px #89eaff33;justify-self:end}.site-footer{margin-top:1rem;padding:.95rem 1rem;display:grid;gap:.6rem}.site-footer p{color:var(--text-soft);font-size:.9rem}.footer-links{display:flex;flex-wrap:wrap;gap:.7rem}.footer-links a{font-size:.82rem;padding:.3rem .55rem;border-radius:999px;background:#89eaff1a;color:#e0f0ff}.drawer-fab{position:fixed;top:.85rem;right:.9rem;z-index:60;width:2.4rem;height:2.4rem;border-radius:999px;border:1px solid rgba(197,223,247,.48);background:#070b12e0;box-shadow:0 0 20px #89eaff40;display:grid;place-content:center;gap:.2rem;cursor:pointer}.drawer-fab span{width:.9rem;height:2px;background:#eef7ff;display:block;border-radius:999px}.drawer-layer{position:fixed;inset:0;z-index:70}.drawer-backdrop{position:absolute;inset:0;border:0;background:#0000009e}.drawer-panel{position:absolute;top:0;right:0;width:min(360px,86vw);height:100vh;background:#050910f5;border-left:1px solid rgba(199,224,250,.28);box-shadow:-8px 0 30px #0000008c,0 0 30px #89eaff1f;padding:1rem;overflow-y:auto}.drawer-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:.9rem}.drawer-head p{letter-spacing:.12em;margin:0}.drawer-close{width:2rem;height:2rem;border-radius:999px;border:1px solid rgba(201,225,250,.36);background:#89eaff24;color:#eff7ff;cursor:pointer;font-size:1.1rem}.drawer-panel section+section{margin-top:1rem}.drawer-panel h2{margin:0 0 .4rem;font-size:.78rem;letter-spacing:.14em;color:var(--text-soft);text-transform:uppercase}.drawer-panel ul{margin:0;padding:0;list-style:none;display:grid;gap:.45rem}.drawer-panel a{display:block;padding:.52rem .58rem;border-radius:10px;border:1px solid rgba(182,210,239,.22);color:#ebf6ff;background:#89eaff12}.drawer-open{overflow:hidden}@media(min-width:880px){.activity-grid{grid-template-columns:1.25fr auto}}@media(max-width:720px){.site-wrap{width:min(960px,calc(100vw - 1.3rem))}.site-header{top:.6rem;padding:.55rem .7rem}.brand-text{font-size:.84rem}.main-nav{gap:.1rem}.nav-link{font-size:.74rem;padding:.38rem .5rem}.drawer-fab{top:.6rem;right:.5rem;width:2.2rem;height:2.2rem}}