:root{--ink:#0f2a1e;--ink-soft:#3d5548;--ink-faint:#6e8478;--pine:#0c4b32;--brand:#14894f;--leaf:#3ec278;--teal:#0d7f7a;--sky:#eaf6f0;--sun:#f5b120;--sun-deep:#d99303;--bg:#f5faf6;--card:#fff;--line:#d9e9de;--line-strong:#b9d6c3;--ok-bg:#e2f6e9;--ok-fg:#0c6b3a;--end-bg:#eef1ef;--end-fg:#5c6b62;--warn-bg:#fdf3dc;--warn-fg:#8a6410;--radius:16px;--shadow:0 2px 10px rgba(12,75,50,.06);--shadow-lift:0 10px 28px rgba(12,75,50,.14);--font-jp:"Zen Kaku Gothic New","Hiragino Kaku Gothic ProN",sans-serif;--font-num:"Bricolage Grotesque","Zen Kaku Gothic New",sans-serif}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:var(--font-jp);color:var(--ink);background:radial-gradient(900px 420px at 88% -80px,rgba(245,177,32,.1),transparent 60%),radial-gradient(700px 500px at -120px 30%,rgba(20,137,79,.07),transparent 55%),var(--bg);line-height:1.8;-webkit-font-smoothing:antialiased}a{color:var(--brand)}.sb-header{position:-webkit-sticky;position:sticky;top:0;z-index:50;background:hsla(0,0%,100%,.88);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}.sb-header-in{max-width:1040px;margin:0 auto;padding:10px 20px;gap:14px;flex-wrap:wrap}.sb-header-in,.sb-logo{display:flex;align-items:center}.sb-logo{gap:9px;text-decoration:none;color:var(--ink);font-weight:900;font-size:15.5px;letter-spacing:.02em}.sb-logo svg{display:block}.sb-logo small{display:block;font-family:var(--font-num);font-weight:600;font-size:9.5px;letter-spacing:.22em;color:var(--brand);text-transform:uppercase}.sb-nav{margin-left:auto;display:flex;gap:4px;flex-wrap:wrap}.sb-nav a{text-decoration:none;color:var(--ink-soft);font-size:13px;font-weight:700;padding:7px 11px;border-radius:999px;transition:background .18s,color .18s}.sb-nav a:hover{background:var(--sky);color:var(--pine)}.sb-main{max-width:840px;margin:0 auto;padding:2.6rem 1.4rem 4rem}.sb-main-wide{max-width:1040px}.sb-eyebrow{font-family:var(--font-num);letter-spacing:.24em;font-size:11.5px;color:var(--brand);font-weight:700;text-transform:uppercase;margin:0 0 4px}h1{font-size:1.95rem;line-height:1.35;margin:4px 0 14px;font-weight:900;letter-spacing:.01em}h2{font-size:1.32rem;line-height:1.45;margin:2.4em 0 .6em;font-weight:800}h2.sb-h2{padding-left:12px;border-left:5px solid var(--sun);border-image:linear-gradient(180deg,var(--sun),var(--leaf)) 1}h3{font-size:1.06rem;margin:1.6em 0 .5em;font-weight:800;color:var(--pine)}p{color:var(--ink-soft)}strong{color:var(--ink)}.sb-hero{position:relative;overflow:hidden;border-radius:22px;background:radial-gradient(480px 260px at 85% 0,rgba(245,177,32,.35),transparent 62%),linear-gradient(128deg,#0c4b32,#0f6b45 46%,#0d7f7a);color:#fff;padding:2.6rem 2rem 2.4rem;margin:.4rem 0 2rem}.sb-hero:after{content:"";position:absolute;inset:0;background:repeating-linear-gradient(90deg,hsla(0,0%,100%,.05) 0 1px,transparent 1px 56px),repeating-linear-gradient(0deg,hsla(0,0%,100%,.05) 0 1px,transparent 1px 56px);pointer-events:none}.sb-hero>*{position:relative;z-index:1}.sb-hero .sb-eyebrow{color:#ffd977}.sb-hero h1{color:#fff;font-size:2.05rem;margin:2px 0 10px}.sb-hero p{color:#d9efe4;margin:0 0 18px;font-size:15px;max-width:40em}.sb-hero-chips{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:20px}.sb-chip{font-family:var(--font-num);background:hsla(0,0%,100%,.12);border:1px solid hsla(0,0%,100%,.22);color:#eafff3;border-radius:999px;padding:5px 13px;font-size:12.5px;font-weight:600}.sb-chip b{color:#ffd977;font-weight:800}.sb-rise{animation:sbRise .7s cubic-bezier(.2,.7,.2,1) both}.sb-rise-2{animation-delay:.08s}.sb-rise-3{animation-delay:.16s}.sb-rise-4{animation-delay:.24s}@keyframes sbRise{0%{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}@media (prefers-reduced-motion:reduce){.sb-rise,.sb-rise-2,.sb-rise-3,.sb-rise-4{animation:none}}.sb-btn{display:inline-block;text-decoration:none;font-weight:800;border-radius:999px;padding:11px 22px;font-size:14.5px;transition:transform .16s,box-shadow .16s,background .16s}.sb-btn-sun{background:linear-gradient(180deg,#ffc63d,var(--sun));color:#3d2c00;box-shadow:0 4px 14px rgba(245,177,32,.35)}.sb-btn-sun:hover{transform:translateY(-2px);box-shadow:0 8px 20px rgba(245,177,32,.45)}.sb-btn-ghost{border:1.5px solid hsla(0,0%,100%,.55);color:#fff}.sb-btn-ghost:hover{background:hsla(0,0%,100%,.12)}.sb-btn-green{background:var(--brand);color:#fff}.sb-btn-green:hover{transform:translateY(-2px);box-shadow:0 8px 18px rgba(20,137,79,.35)}.sb-card{display:block;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:1.3rem 1.5rem;text-decoration:none;box-shadow:var(--shadow);transition:transform .18s,box-shadow .18s,border-color .18s;margin-top:14px}.sb-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-lift);border-color:var(--line-strong)}.sb-card .sb-card-title{margin:6px 0 4px;font-size:1.13rem;font-weight:800;color:var(--ink)}.sb-card .sb-card-desc{margin:0;font-size:14px;color:var(--ink-soft);line-height:1.75}.sb-tag{display:inline-block;font-size:11px;font-weight:800;letter-spacing:.08em;color:var(--ok-fg);background:var(--ok-bg);border-radius:999px;padding:3px 10px}.sb-tag-sun{color:var(--sun-deep);background:#fff3d6}.sb-grid2{display:grid;grid-template-columns:1fr 1fr;grid-gap:14px;gap:14px}@media (max-width:680px){.sb-grid2{grid-template-columns:1fr}}.sb-badge{display:inline-block;font-size:11.5px;font-weight:800;border-radius:999px;padding:2px 10px}.sb-badge-open{background:var(--ok-bg);color:var(--ok-fg)}.sb-badge-closed{background:var(--end-bg);color:var(--end-fg)}.sb-badge-check,.sb-note{background:var(--warn-bg);color:var(--warn-fg)}.sb-note{border:1px solid #f0e0b8;border-radius:12px;padding:.9rem 1.1rem;font-size:13.5px;line-height:1.7;margin:0 0 26px}.sb-answer{background:linear-gradient(180deg,#f0faf4,#e8f6ee);border:1px solid var(--line-strong);border-left:6px solid var(--brand);border-radius:14px;padding:1.1rem 1.3rem;margin:18px 0 26px}.sb-answer p{margin:.3em 0}.sb-table-wrap{overflow-x:auto;margin:14px 0}.sb-table{border-collapse:collapse;width:100%;font-size:13.8px;background:var(--card);border-radius:12px;overflow:hidden;box-shadow:var(--shadow)}.sb-table th{background:var(--pine);color:#eafff3;font-weight:700;text-align:left;padding:9px 12px;font-size:12.8px;letter-spacing:.03em;white-space:nowrap}.sb-table td{border-top:1px solid var(--line);padding:9px 12px;color:var(--ink-soft);vertical-align:top}.sb-table tr:nth-child(2n) td{background:#f7fbf8}.sb-table td b,.sb-table td strong{color:var(--ink)}.sb-faq{border:1px solid var(--line);border-radius:12px;background:var(--card);margin-top:10px;box-shadow:var(--shadow)}.sb-faq summary{cursor:pointer;font-weight:800;color:var(--ink);list-style:none;position:relative;padding:13px 40px 13px 16px}.sb-faq summary:after{content:"+";position:absolute;right:16px;top:10px;font-family:var(--font-num);font-size:19px;color:var(--brand);transition:transform .2s}.sb-faq[open] summary:after{transform:rotate(45deg)}.sb-faq div{padding:0 16px 14px;color:var(--ink-soft);font-size:14px;line-height:1.8}.sb-source{font-size:12.5px;color:var(--ink-faint);line-height:1.7}.sb-footer{border-top:1px solid var(--line);background:#fff;margin-top:3rem}.sb-footer-in{max-width:1040px;margin:0 auto;padding:26px 20px 34px;font-size:12.5px;color:var(--ink-faint);line-height:1.9}.sb-footer-in a{color:var(--brand);text-decoration:none;font-weight:700}.sb-footer-nav{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:8px}