:root{--bg:#03060d;--panel:rgba(12,24,44,.78);--line:rgba(80,190,255,.18);--cyan:#3fd0ff;--cyan2:#7fe3ff;--txt:#e8f4ff;--mut:#8aa3bd;--green:#3ef0a1;--amber:#ffc24a;--red:#ff5d73}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--txt);font:17px/1.5 -apple-system,BlinkMacSystemFont,"SF Pro Text","Segoe UI",Roboto,sans-serif;background-image:radial-gradient(900px 500px at 50% -120px,rgba(40,140,255,.25),transparent 70%);min-height:100vh;padding:env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left)}
a{color:var(--cyan2)}
button{font:inherit}
.loading{padding:60px 20px;text-align:center;color:var(--mut)}
.wrap{max-width:720px;margin:0 auto;padding:0 16px 40px}
/* home */
.hdr{display:flex;align-items:center;gap:12px;padding:22px 0 6px}
.hdr h1{margin:0;font:800 28px/1 "SF Pro Display",-apple-system,sans-serif;letter-spacing:.2em;color:var(--cyan2);text-shadow:0 0 18px rgba(63,208,255,.5)}
.hdr small{display:block;color:var(--mut);font-size:12px;letter-spacing:.14em;text-transform:uppercase;margin-top:6px}
.hdr .ic{font-size:30px}
.sh{font-size:12px;font-weight:800;letter-spacing:.1em;text-transform:uppercase;color:#9fc3e6;margin:18px 2px 8px;display:flex;justify-content:space-between;align-items:baseline}
.sh small{font-weight:600;text-transform:none;letter-spacing:0;color:var(--mut)}
.card{display:block;width:100%;text-align:left;color:var(--txt);text-decoration:none;background:var(--panel);border:1px solid var(--line);border-radius:18px;padding:14px 14px 12px;margin:0 0 10px;position:relative;overflow:hidden;cursor:pointer}
.card::before{content:"";position:absolute;left:0;top:0;width:4px;height:100%;background:var(--c,#8aa3bd);box-shadow:0 0 12px var(--c,#8aa3bd)}
.card .row{display:flex;gap:12px;align-items:center}
.card .cov{width:54px;height:54px;border-radius:14px;background:rgba(255,255,255,.06);border:1px solid var(--line);display:flex;align-items:center;justify-content:center;font-size:28px;flex:none}
.card .t{font-size:18px;font-weight:800;color:#fff;line-height:1.2}
.card .a{color:var(--mut);font-size:13px;margin-top:2px}
.card .go{margin-left:auto;color:var(--cyan);font-size:26px;font-weight:300}
.bar{height:9px;border-radius:999px;background:rgba(255,255,255,.08);overflow:hidden;border:1px solid rgba(63,208,255,.2);margin-top:11px}
.bar i{display:block;height:100%;background:linear-gradient(90deg,var(--c,#3fd0ff),#fff);min-width:2px;border-radius:999px;transition:width .3s}
.pr{display:flex;justify-content:space-between;font-size:12.5px;color:#cfe3f5;margin-top:6px}
.pr b{color:var(--c,#7fe3ff)}
.badge{display:inline-block;font-size:11px;font-weight:800;letter-spacing:.06em;text-transform:uppercase;border-radius:999px;padding:3px 8px;background:rgba(62,240,161,.14);color:var(--green);border:1px solid rgba(62,240,161,.4)}
.badge.none{background:rgba(255,255,255,.06);color:var(--mut);border-color:var(--line)}
.note{font-size:13.5px;color:#cfe3f5;background:var(--panel);border:1px dashed var(--line);border-radius:14px;padding:11px 13px;line-height:1.45}
.note b{color:#fff}
/* book page */
.top{display:flex;align-items:center;gap:8px;padding:14px 0 4px;position:sticky;top:0;background:linear-gradient(var(--bg) 70%,transparent);z-index:5}
.back{border:1px solid var(--line);background:var(--panel);color:var(--cyan2);border-radius:999px;padding:8px 14px;font-weight:700;font-size:15px}
.top .ttl{flex:1;min-width:0;font-weight:800;font-size:15px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;color:#fff}
.top .ttl small{display:block;color:var(--mut);font-weight:600;font-size:12px}
.hero{background:linear-gradient(160deg,rgba(63,208,255,.12),rgba(12,24,44,.85));border:1px solid var(--line);border-radius:18px;padding:16px 16px 14px;margin-top:8px}
.hero .cov{font-size:44px;line-height:1}
.hero h2{margin:8px 0 0;font-size:24px;line-height:1.15;color:#fff}
.hero .a{color:var(--mut);font-size:14px;margin:3px 0 0}
.hero p{margin:10px 0 0;font-size:14.5px;color:#cfe3f5}
.btns{display:grid;gap:9px;margin-top:12px}
.btn{display:flex;align-items:center;justify-content:center;gap:8px;width:100%;border:0;border-radius:14px;padding:15px 14px;font-weight:800;font-size:17px;text-decoration:none;cursor:pointer;min-height:54px}
.btn.p{background:var(--cyan);color:#03121f;box-shadow:0 0 18px rgba(63,208,255,.35)}
.btn.g{background:var(--green);color:#03121f;box-shadow:0 0 18px rgba(62,240,161,.3)}
.btn.o{background:rgba(255,255,255,.06);color:#fff;border:1px solid var(--line)}
.btn.o small{color:var(--mut);font-weight:600;font-size:12px}
.btn.a{background:var(--amber);color:#1a1200}
.btn.red{background:var(--red);color:#fff}
.links{display:grid;gap:7px;margin-top:10px}
.links a{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--txt);background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:11px 12px;font-size:15px;min-height:48px}
.links a span.go{margin-left:auto;color:var(--cyan)}
.toc{background:var(--panel);border:1px solid var(--line);border-radius:14px;overflow:hidden;margin-top:8px}
.toc button{display:grid;grid-template-columns:38px 1fr 30px;align-items:center;gap:6px;width:100%;text-align:left;background:none;border:0;border-top:1px solid rgba(80,190,255,.1);color:var(--txt);padding:11px 8px 11px 10px;min-height:50px;cursor:pointer}
.toc button:first-child{border-top:0}
.toc .n{font:700 12px/1 ui-monospace,Menlo,monospace;color:var(--cyan2);background:rgba(63,208,255,.12);border-radius:7px;padding:7px 0;text-align:center}
.toc .t{font-size:14.5px;line-height:1.3}
.toc .ck{text-align:center;font-size:17px}
.toc button.done .t{color:var(--mut)}
.toc button.done .n{color:var(--green);background:rgba(62,240,161,.14)}
.toc button.cur{background:rgba(255,194,74,.1)}
.toc button.cur .n{color:var(--amber);background:rgba(255,194,74,.18)}
.toc.laws button{grid-template-columns:38px 1fr 44px}
.toc.laws input{width:24px;height:24px;margin:0 auto;display:block;accent-color:#3ef0a1}
/* reader */
.rd{padding-bottom:120px}
.rd h2{font-size:21px;line-height:1.25;margin:14px 0 6px;color:#fff}
.rd .meta{color:var(--mut);font-size:13px;margin-bottom:14px}
.rd p{font-size:19px;line-height:1.62;margin:0 0 1em;color:#eef6ff}
.rd.big p{font-size:22px;line-height:1.65}
.rdnav{display:flex;gap:8px;margin:18px 0 0}
.rdnav .btn{flex:1;min-height:50px;font-size:15px}
.stick{position:fixed;left:0;right:0;bottom:0;padding:10px 14px calc(12px + env(safe-area-inset-bottom));background:linear-gradient(transparent,var(--bg) 35%);z-index:9}
.stick .in{max-width:720px;margin:0 auto;display:grid;grid-template-columns:1fr auto;gap:8px}
.stick .btn{min-height:56px;font-size:17px}
.stick .btn.sm{padding:0 14px;font-size:22px;background:var(--panel);border:1px solid var(--line);color:#fff}
.rdbar{position:fixed;top:0;left:0;height:3px;background:var(--green);box-shadow:0 0 8px var(--green);z-index:10;width:0}
/* modal */
.modal{position:fixed;inset:0;background:rgba(0,0,0,.6);display:flex;align-items:flex-end;justify-content:center;z-index:20}
.modal .box{background:#0a1628;border:1px solid var(--line);border-radius:22px 22px 0 0;padding:18px 16px calc(18px + env(safe-area-inset-bottom));width:100%;max-width:720px;max-height:85vh;overflow:auto}
.modal h3{margin:0 0 4px;font-size:20px;color:#fff}
.modal .sub{color:var(--mut);font-size:14px;margin-bottom:12px}
.modal select{width:100%;font-size:17px;padding:13px 12px;border-radius:12px;border:1px solid var(--line);background:#0f1f36;color:#fff;margin:4px 0 12px}
.modal label{font-size:13px;color:#9fc3e6;font-weight:700;letter-spacing:.06em;text-transform:uppercase}
.toast{position:fixed;left:50%;bottom:110px;transform:translateX(-50%);background:var(--green);color:#03121f;font-weight:800;padding:10px 16px;border-radius:999px;z-index:30;box-shadow:0 6px 24px rgba(0,0,0,.5)}
.install{margin-top:14px}

/* in-site outside view */
body.noscroll{overflow:hidden}
.xv{position:fixed;inset:0;display:flex;flex-direction:column;background:#fff;z-index:15;padding-top:env(safe-area-inset-top)}
.xbar{display:flex;align-items:center;gap:6px;padding:6px 8px;background:var(--bg);border-bottom:1px solid var(--line);flex:none}
.xbar .back{padding:6px 12px;font-size:20px;line-height:1}
.xbar .ttl{flex:1;min-width:0;font-weight:800;font-size:14px;color:#fff;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.xb{border:0;border-radius:999px;padding:9px 11px;font-weight:800;font-size:13px;text-decoration:none;white-space:nowrap;min-height:38px;display:inline-flex;align-items:center;cursor:pointer}
.xb.a{background:var(--amber);color:#1a1200}
.xb.g{background:var(--green);color:#03121f}
#xf{flex:1;width:100%;border:0;background:#fff}
.xfoot{flex:none;background:var(--bg);text-align:center;font-size:12.5px;padding:7px 10px calc(7px + env(safe-area-inset-bottom));border-top:1px solid var(--line)}
.xfoot a{color:var(--cyan2);text-decoration:none}

/* reading spots (Oct 10, 2026) */
.spot{margin-top:12px;background:rgba(255,194,74,.08);border:1px solid rgba(255,194,74,.35);border-radius:14px;padding:11px 13px}
.spot .k{font-size:11.5px;font-weight:800;letter-spacing:.08em;text-transform:uppercase;color:var(--amber)}
.spot .v{font-size:21px;font-weight:800;color:#fff;margin-top:2px}
.spot .c{font-size:14px;color:#cfe3f5;line-height:1.3;margin-top:2px}
.spot .d{font-size:12.5px;color:var(--mut);margin-top:3px}
.spot .nt,.sp .nt{font-size:14px;color:#ffe7b3;margin-top:5px;white-space:pre-wrap}
.spot.none{background:rgba(255,255,255,.04);border-color:var(--line)}
.spot.none .k{color:var(--mut)}
.btn.big{min-height:62px;font-size:19px}
.two{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.two .btn{font-size:13.5px;min-height:48px;padding:10px 8px;font-weight:700}
.spots{display:grid;gap:7px}
.sp{display:flex;align-items:stretch;background:var(--panel);border:1px solid var(--line);border-radius:12px;overflow:hidden}
.sp a{flex:1;min-width:0;text-decoration:none;color:var(--txt);padding:10px 12px}
.sp .l{font-weight:800;font-size:15.5px;color:#fff}
.sp .d{font-size:12px;color:var(--mut)}
.sp .x{flex:none;width:44px;border:0;border-left:1px solid var(--line);background:none;color:var(--mut);font-size:15px;cursor:pointer}
.hero textarea,.steps textarea{width:100%;font:15px/1.4 -apple-system,sans-serif;padding:11px 12px;border-radius:12px;border:1px solid var(--line);background:#0f1f36;color:#fff;margin:8px 0 6px;resize:vertical}
.steps textarea{font:11px/1.3 ui-monospace,Menlo,monospace;color:var(--mut)}
.hero label{display:block;font-size:12px;color:#9fc3e6;font-weight:700;letter-spacing:.06em;text-transform:uppercase;margin-top:8px}
.pinfo{font-size:14px;color:var(--green);min-height:20px}
.steps{display:grid;gap:8px}
.st{display:flex;gap:12px;background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:12px;font-size:15px;line-height:1.4}
.st>b{flex:none;width:30px;height:30px;border-radius:50%;background:var(--cyan);color:#03121f;display:flex;align-items:center;justify-content:center;font-size:15px}
.st>div{flex:1;min-width:0}
.st .btn{margin-top:8px;min-height:48px;font-size:16px}
.hero.ok h2{color:var(--green)}

/* Oct 10, 2026: page box (archive.org book) */
.modal .pgin{width:100%;font-size:22px;font-weight:800;text-align:center;padding:12px;border-radius:12px;border:1px solid var(--line);background:#0f1f36;color:#fff;margin:4px 0 12px;-moz-appearance:textfield}
.modal .pgin::-webkit-outer-spin-button,.modal .pgin::-webkit-inner-spin-button{-webkit-appearance:none;margin:0}
.modal .pgrow{display:flex;gap:10px;align-items:center;margin:6px 0 4px}
.modal .pgrow .btn{width:64px;flex:none;margin:0 0 8px;font-size:24px;padding:10px 0}
.modal .pgrow .pgin{flex:1;margin:0 0 8px}