:root{--bg:#F5F8F7;--card:#FFFFFF;--ink:#10282B;--muted:#3C5558;--line:#D5E2DF;--accent:#0B6366;--accent-ink:#FFFFFF;--soft:#E3EEEB;--lav:#ECE9F7;--lav-ink:#3B2F6B;--field:#FFFFFF;--track:#C9DAD6;color-scheme:light;box-sizing:border-box;padding-top:env(safe-area-inset-top,0px);padding-bottom:env(safe-area-inset-bottom,0px)}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){--bg:#0C1A1C;--card:#13272A;--ink:#E8F1EF;--muted:#A9C0BC;--line:#264246;--accent:#5FC0BE;--accent-ink:#06201F;--soft:#17302F;--lav:#262240;--lav-ink:#D9D3F5;--field:#0C1A1C;--track:#2B4A4D;color-scheme:dark}}
:root[data-theme="dark"]{--bg:#0C1A1C;--card:#13272A;--ink:#E8F1EF;--muted:#A9C0BC;--line:#264246;--accent:#5FC0BE;--accent-ink:#06201F;--soft:#17302F;--lav:#262240;--lav-ink:#D9D3F5;--field:#0C1A1C;--track:#2B4A4D;color-scheme:dark}
html{scroll-padding-top:env(safe-area-inset-top,0px)}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);font-family:'Manrope',system-ui,-apple-system,'Segoe UI',sans-serif;line-height:1.5}
.wrap{max-width:1000px;margin:0 auto;padding:24px}
.top{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px}
.brand{font-weight:800;font-size:20px;color:var(--ink);text-decoration:none}
.back{color:var(--accent);font-weight:700;text-decoration:none;font-size:15px}
h1{font-size:40px;line-height:1.1;letter-spacing:-0.02em;font-weight:800;margin:40px 0 0}
.sub{color:var(--muted);font-size:18px;margin:12px 0 0;max-width:640px}
.grid{display:flex;flex-wrap:wrap;gap:24px;margin-top:32px;align-items:stretch}
.card{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:28px}
.form{flex:1 1 420px}
.result{flex:1 1 360px;background:var(--soft);border-color:transparent;display:flex;flex-direction:column}
h2{font-size:15px;font-weight:700;color:var(--muted);text-transform:uppercase;letter-spacing:0.04em;margin:0 0 12px}
h2.sp{margin-top:28px}
.opt{display:flex;gap:14px;align-items:flex-start;border:1px solid var(--line);border-radius:14px;padding:14px 16px;margin-bottom:10px;cursor:pointer;background:var(--field)}
.opt:hover{border-color:var(--accent)}
.opt input{width:22px;height:22px;margin:2px 0 0;accent-color:var(--accent);flex:0 0 auto}
.opt b{display:block;font-size:16px}
.opt span{display:block;font-size:14px;color:var(--muted)}
.opt:has(input:checked){border-color:var(--accent);background:var(--soft)}
.opt:has(input:focus-visible){outline:2px solid var(--accent);outline-offset:2px}
.lbl{font-size:14px;font-weight:700;color:var(--muted);text-transform:uppercase;letter-spacing:0.04em}
.big{font-size:64px;font-weight:800;letter-spacing:-0.03em;line-height:1;color:var(--accent);margin:8px 0 0}
.big small{font-size:24px;color:var(--muted);font-weight:700}
.rate{font-size:20px;font-weight:800;margin:10px 0 0}
.bar{height:12px;border-radius:999px;background:var(--track);margin-top:16px;overflow:hidden}
.bar i{display:block;height:100%;width:0;background:var(--accent);border-radius:999px;transition:width .3s}
.tips{margin:24px 0 0;padding:0;list-style:none;border-top:1px solid var(--line)}
.tips li{padding:12px 0;border-bottom:1px solid var(--line);font-size:15px}
.safety{background:var(--lav);color:var(--lav-ink);border-radius:12px;padding:16px;font-size:14px;margin:24px 0 0}
.note{color:var(--muted);font-size:13px;margin:24px 0 0}
@media (max-width:520px){h1{font-size:32px}.big{font-size:52px}.card{padding:20px}}
@media (prefers-reduced-motion:reduce){.bar i{transition:none}}