:root{
  --ink:#0e1b2c; --ink2:#43506a; --mute:#7a859a;
  --paper:#fbfcfe; --paper2:#eef2f8; --line:#d9e0ec;
  --red:#1f7bff; --red2:#0b4fd6; --redglow:rgba(31,123,255,.5); --cyan:#46c8ff;
  --alert:#e0364f; --alert2:#b81f37; --alertglow:rgba(224,54,79,.45);
  --hl:#ffe45e; --hl2:#ffd21f;
  --navy:#1a2f4f; --navy2:#0e1b2c;
  --ok:#159a62;
  --r-lg:26px; --r-md:16px;
  --lift:0 1px 0 rgba(255,255,255,.95) inset,0 0 0 1px rgba(14,27,44,.05),0 18px 40px -22px rgba(14,27,44,.45),0 3px 10px -4px rgba(14,27,44,.12);
  --f-h:"Zen Kaku Gothic New","Hiragino Sans",sans-serif;
  --f-b:"Noto Sans JP","Hiragino Sans",system-ui,sans-serif;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;color:var(--ink);font:17px/1.85 var(--f-b);background:
  radial-gradient(900px 500px at 110% 20%,#dfe6f2 0%,transparent 60%),
  radial-gradient(700px 400px at -10% 60%,#e7ecf5 0%,transparent 60%),
  linear-gradient(180deg,#f3f6fa,#e9eef5);overflow-x:hidden}
a{color:var(--navy)}
.w{max-width:1160px;margin:0 auto;padding:0 16px}
@media(min-width:768px){.w{padding:0 28px}}
.hl{background:linear-gradient(transparent 58%,var(--hl) 58%,var(--hl2) 92%,transparent 92%);background-size:0 100%;background-repeat:no-repeat;transition:background-size 1.1s cubic-bezier(.2,.8,.2,1) .25s;padding:0 2px}
.in .hl,.hl.in{background-size:100% 100%}
.nw{white-space:nowrap}

/* top bar */
.bar{position:relative;z-index:5}
.bar .w{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-top:14px;padding-bottom:4px}
.brand{display:inline-flex;align-items:center;gap:9px;font:900 15px/1 var(--f-h);color:#fff;text-decoration:none;letter-spacing:.02em}
.brand img{width:40px;height:40px;filter:drop-shadow(0 4px 12px rgba(31,123,255,.6))}
.brand small{display:block;font:500 10.5px/1.2 var(--f-b);color:#9fb0c9;margin-top:3px;letter-spacing:0}
.crumb{font-size:12.5px;color:#9fb0c9}
.crumb a{color:#c9d5e7;text-decoration:none}

/* hero */
.hero{position:relative;color:#eef3fb;background:
  radial-gradient(900px 520px at 78% 30%,rgba(31,123,255,.30),transparent 60%),radial-gradient(500px 300px at 85% 90%,rgba(70,200,255,.14),transparent 70%),
  radial-gradient(800px 600px at 10% 0%,#22406b 0%,transparent 55%),
  linear-gradient(165deg,#15294a 0%,#0e1b2c 60%,#0a1422 100%);overflow:hidden;isolation:isolate}
.hero::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);background-size:44px 44px;-webkit-mask-image:radial-gradient(ellipse at 60% 40%,#000 20%,transparent 75%);mask-image:radial-gradient(ellipse at 60% 40%,#000 20%,transparent 75%);z-index:-1}
.hero .hw{display:grid;gap:18px;padding-top:18px;padding-bottom:48px}
@media(min-width:960px){.hero .hw{grid-template-columns:1.08fr .92fr;align-items:center;padding-top:40px;padding-bottom:84px;gap:40px}}
.eyebrow{display:inline-flex;align-items:center;gap:8px;padding:6px 14px 6px 10px;border-radius:999px;font-size:13.5px;color:#e6edf8;background:linear-gradient(180deg,rgba(255,255,255,.12),rgba(255,255,255,.04));box-shadow:0 0 0 1px rgba(255,255,255,.14) inset;backdrop-filter:blur(6px)}
.eyebrow b{display:inline-block;width:8px;height:8px;border-radius:50%;background:var(--cyan);animation:ping 2s infinite}
@keyframes ping{0%{box-shadow:0 0 0 0 var(--redglow)}70%{box-shadow:0 0 0 10px transparent}100%{box-shadow:0 0 0 0 transparent}}
.hero h1{font:900 clamp(31px,8.6vw,60px)/1.24 var(--f-h);letter-spacing:-.02em;margin:16px 0 16px}
.hero h1 em{font-style:normal;display:inline-block;background:linear-gradient(180deg,#bff0ff,#46c8ff 55%,#1f7bff);-webkit-background-clip:text;background-clip:text;color:transparent;filter:drop-shadow(0 6px 22px rgba(31,123,255,.55))}
.hero .lead{font-size:clamp(16px,4.2vw,19px);color:#c6d2e4;max-width:32em;margin:0}
.hero .lead strong{color:#fff}
.ctas{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}
.btn-p{position:relative;display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:58px;padding:0 30px;border-radius:16px;font:900 18px/1 var(--f-h);color:#fff;text-decoration:none;border:0;cursor:pointer;
  background:linear-gradient(180deg,#4fa3ff 0%,var(--red) 45%,var(--red2) 100%);box-shadow:0 1px 0 rgba(255,255,255,.45) inset,0 -2px 0 rgba(0,0,0,.15) inset,0 16px 30px -12px var(--redglow);overflow:hidden;transition:transform .2s,box-shadow .2s}
.btn-p::after{content:"";position:absolute;top:0;left:-60%;width:40%;height:100%;background:linear-gradient(100deg,transparent,rgba(255,255,255,.45),transparent);transform:skewX(-20deg);animation:sheen 3.6s ease-in-out infinite}
@keyframes sheen{0%,60%{left:-60%}100%{left:130%}}
.btn-p:hover{transform:translateY(-2px)}
.btn-g{display:inline-flex;align-items:center;min-height:58px;padding:0 22px;border-radius:16px;font:700 16px/1 var(--f-h);color:#e8eef8;text-decoration:none;background:rgba(255,255,255,.06);box-shadow:0 0 0 1px rgba(255,255,255,.18) inset}
.trust{display:flex;flex-wrap:wrap;gap:8px 16px;margin-top:20px;font-size:13.5px;color:#9fb0c9}
.trust span{display:inline-flex;align-items:center;gap:6px}
.trust svg{width:16px;height:16px;flex:none}

/* 3D notice stack */
.stage{position:relative;height:300px;perspective:1100px;perspective-origin:50% 30%;order:-1;margin-top:-4px}
@media(min-width:600px){.stage{height:360px}}
@media(min-width:960px){.stage{height:460px;order:0;margin:0}}
.stack{position:absolute;inset:0;transform-style:preserve-3d;transform:rotateX(14deg) rotateY(-18deg) rotateZ(2deg);transition:transform .25s ease-out}
.notice{position:absolute;left:50%;top:52%;width:min(80vw,350px);margin-left:calc(min(80vw,350px)/-2);padding:16px 18px 18px;border-radius:20px;color:var(--ink);
  background:linear-gradient(160deg,#ffffff 0%,#f4f7fb 55%,#e8edf5 100%);
  box-shadow:0 1px 0 #fff inset,0 0 0 1px rgba(14,27,44,.08),0 30px 60px -20px rgba(0,0,0,.6),0 8px 18px -8px rgba(0,0,0,.35)}
.notice .nh{display:flex;align-items:center;gap:10px;font:700 11.5px/1.35 var(--f-h);color:var(--mute)}
.notice .nh i{width:26px;height:26px;border-radius:8px;background:linear-gradient(145deg,#ff5b6f,#c4142e);box-shadow:0 0 0 1px rgba(255,255,255,.4) inset;flex:none}
.notice .nh b{color:var(--ink);display:block;font-size:13px}
.notice dl{margin:12px 0 0;display:grid;grid-template-columns:auto 1fr;gap:3px 12px;font-size:12.5px;line-height:1.6}
.notice dt{color:var(--mute)}
.notice dd{margin:0;font-weight:700}
.notice .amt{font:900 30px/1 var(--f-h);margin-top:10px;font-variant-numeric:tabular-nums}
.notice .amt small{font-size:15px;margin-left:2px}
.n1{transform:translate3d(-58px,-128px,-140px) rotateZ(-7deg);opacity:.7;filter:brightness(.9)}
.n2{transform:translate3d(-24px,-70px,-70px) rotateZ(-3deg);opacity:.86;filter:brightness(.96)}
.n3{transform:translate3d(10px,-14px,0)}
@media(min-width:960px){.n1{transform:translate3d(-80px,-160px,-160px) rotateZ(-7deg)}.n2{transform:translate3d(-34px,-86px,-80px) rotateZ(-3deg)}.n3{transform:translate3d(10px,-10px,0)}}
.stamp{position:absolute;right:14px;top:50px;width:112px;height:112px;border-radius:50%;display:grid;place-items:center;text-align:center;font:900 15px/1.25 var(--f-h);color:var(--alert);
  border:4px double var(--alert);transform:rotate(-16deg) scale(2.6);opacity:0;mix-blend-mode:multiply;background:radial-gradient(circle,rgba(224,54,79,.07),transparent 70%)}
.stamp span{display:block;font-size:10.5px;letter-spacing:.08em}
.go .stamp{animation:stamp .55s cubic-bezier(.3,1.6,.5,1) 1s forwards}
@keyframes stamp{0%{transform:rotate(-16deg) scale(2.6);opacity:0}60%{opacity:.95}100%{transform:rotate(-16deg) scale(1);opacity:.92}}
.go .n3{animation:thud .35s ease-out 1.45s}
@keyframes thud{50%{transform:translate3d(10px,-8px,-8px)}}
.floor{position:absolute;left:10%;right:10%;bottom:4%;height:60px;border-radius:50%;background:radial-gradient(ellipse at center,rgba(0,0,0,.55),transparent 70%);filter:blur(10px)}

/* answer box (AEO) */
.answer{position:relative;margin-top:-34px;z-index:3}
.answer .box{padding:22px 20px;border-radius:var(--r-lg);background:linear-gradient(170deg,#fff 0%,#fbfcfe 60%,#f1f5fb 100%);box-shadow:var(--lift);border-left:6px solid var(--red)}
@media(min-width:768px){.answer .box{padding:26px 30px}}
.answer h2{font:900 15px/1 var(--f-h);color:var(--red);margin:0 0 10px;letter-spacing:.04em}
.answer p{margin:0;font-size:clamp(16.5px,4.3vw,19px);line-height:1.85;font-weight:500}
.answer p b{background:linear-gradient(transparent 62%,var(--hl) 62%);font-weight:800}
.answer .upd{display:block;margin-top:10px;font-size:12.5px;color:var(--mute)}

/* sections */
section.blk{padding:60px 0}
@media(min-width:960px){section.blk{padding:92px 0}}
.kicker{font:700 13.5px/1 var(--f-h);color:var(--red);letter-spacing:.06em;display:flex;align-items:center;gap:10px}
.kicker::before{content:"";width:26px;height:2px;background:currentColor;border-radius:2px}
h2.t{font:900 clamp(25px,6.4vw,40px)/1.38 var(--f-h);letter-spacing:-.015em;margin:14px 0 12px}
.sub{color:var(--ink2);max-width:40em;margin:0}
.reveal{opacity:0;transform:translateY(26px);transition:opacity .8s cubic-bezier(.2,.8,.2,1),transform .8s cubic-bezier(.2,.8,.2,1)}
.reveal.in{opacity:1;transform:none}

.flow{position:relative;display:grid;gap:16px;margin-top:32px;counter-reset:f}
@media(min-width:960px){.flow{grid-template-columns:repeat(var(--n,4),1fr);gap:22px}}
.flow svg.wire{position:absolute;inset:0;width:100%;height:100%;pointer-events:none;overflow:visible;display:none}
@media(min-width:960px){.flow svg.wire{display:block}}
.wire path{fill:none;stroke:var(--red);stroke-width:2.5;stroke-dasharray:8 8;stroke-dashoffset:600;opacity:.5;transition:stroke-dashoffset 2.4s ease}
.flow.in .wire path{stroke-dashoffset:0}
.fcard{position:relative;padding:22px 20px;border-radius:var(--r-lg);background:linear-gradient(170deg,#fff 0%,var(--paper) 50%,var(--paper2) 100%);box-shadow:var(--lift);transition:transform .35s ease}
.fcard:hover{transform:translateY(-4px)}
.fcard .no{counter-increment:f;display:inline-grid;place-items:center;width:40px;height:40px;border-radius:12px;font:900 18px/1 var(--f-h);color:#fff;background:linear-gradient(160deg,#2a4a78,var(--navy2));box-shadow:0 1px 0 rgba(255,255,255,.3) inset,0 8px 16px -8px rgba(14,27,44,.8)}
.fcard .no::before{content:counter(f)}
.fcard h3{font:800 18.5px/1.45 var(--f-h);margin:14px 0 6px}
.fcard p{margin:0;color:var(--ink2);font-size:15.5px}
.fcard.bad{background:linear-gradient(170deg,#fff6f7 0%,#ffeef0 60%,#ffe2e6 100%);box-shadow:0 1px 0 #fff inset,0 0 0 1px rgba(224,54,79,.22),0 22px 44px -22px rgba(224,54,79,.55)}
.fcard.bad .no{background:linear-gradient(160deg,#ff5d72,var(--alert2))}
.fcard.bad h3{color:var(--alert2)}
.fcard.good{background:linear-gradient(170deg,#f3fcf7 0%,#e6f7ee 100%);box-shadow:0 1px 0 #fff inset,0 0 0 1px rgba(21,154,98,.22),0 22px 44px -22px rgba(21,154,98,.45)}
.fcard.good .no{background:linear-gradient(160deg,#2bd08d,var(--ok))}
.fcard.good h3{color:#0d6e45}
.src{margin-top:24px;padding:18px 20px;border-radius:var(--r-md);background:linear-gradient(180deg,rgba(255,255,255,.75),rgba(255,255,255,.45));box-shadow:0 0 0 1px var(--line) inset;backdrop-filter:blur(8px);font-size:15px;color:var(--ink2)}
.src cite{display:block;font-style:normal;font-size:12.5px;color:var(--mute);margin-top:6px}

.voices{margin-top:32px;overflow:hidden;-webkit-mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent);mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent)}
.track{display:flex;gap:16px;width:max-content;animation:mq 50s linear infinite}
.voices:hover .track{animation-play-state:paused}
@keyframes mq{to{transform:translateX(-50%)}}
.v{width:270px;flex:none;padding:18px;border-radius:20px;background:linear-gradient(170deg,#fff,var(--paper2));box-shadow:var(--lift);font-size:14.5px;color:var(--ink2);line-height:1.7}
.v b{display:block;color:var(--ink);font:800 15.5px/1.5 var(--f-h);margin-bottom:6px}
.v b::before{content:"“";color:var(--red);font-size:22px;line-height:0;margin-right:4px;vertical-align:-6px}
.vnote{font-size:12.5px;color:var(--mute);margin-top:12px}

.dark{background:linear-gradient(170deg,#132644 0%,#0e1b2c 70%);color:#e9eff9;position:relative;overflow:hidden}
.dark::before{content:"";position:absolute;right:-200px;top:-200px;width:600px;height:600px;border-radius:50%;background:radial-gradient(circle,rgba(31,123,255,.28),transparent 65%)}
.dark .sub{color:#b5c3d8}
.dark .kicker{color:#7fd3ff}
.steps{display:grid;gap:14px;margin-top:30px;position:relative}
@media(min-width:768px){.steps{grid-template-columns:1fr 1fr;gap:16px}}
.step{display:flex;gap:16px;align-items:flex-start;padding:22px 20px;border-radius:var(--r-lg);background:linear-gradient(170deg,rgba(255,255,255,.10),rgba(255,255,255,.035));box-shadow:0 1px 0 rgba(255,255,255,.14) inset,0 0 0 1px rgba(255,255,255,.08) inset,0 20px 40px -24px rgba(0,0,0,.7);backdrop-filter:blur(10px);cursor:pointer;transition:background .3s,transform .3s;-webkit-tap-highlight-color:transparent}
.step:hover{transform:translateY(-3px)}
.step .ck{flex:none;width:36px;height:36px;border-radius:11px;display:grid;place-items:center;background:rgba(255,255,255,.08);box-shadow:0 0 0 1.5px rgba(255,255,255,.35) inset;transition:all .3s}
.step .ck svg{width:18px;height:18px;stroke:#fff;stroke-width:3;fill:none;stroke-dasharray:24;stroke-dashoffset:24;transition:stroke-dashoffset .35s ease .05s}
.step.done .ck{background:linear-gradient(160deg,#25c483,var(--ok));box-shadow:0 0 0 1px rgba(255,255,255,.3) inset,0 6px 16px -6px rgba(21,154,98,.8)}
.step.done .ck svg{stroke-dashoffset:0}
.step.done{background:linear-gradient(170deg,rgba(37,196,131,.16),rgba(37,196,131,.05))}
.step h3{font:800 18px/1.5 var(--f-h);margin:4px 0 4px;color:#fff}
.step p{margin:0;color:#b9c7dc;font-size:15px}
.alert{margin-top:20px;position:relative;display:flex;gap:14px;align-items:flex-start;padding:18px 20px;border-radius:var(--r-md);background:linear-gradient(170deg,rgba(224,54,79,.22),rgba(224,54,79,.08));box-shadow:0 0 0 1px rgba(255,120,140,.35) inset;color:#ffe3e7;font-size:15.5px}
.alert svg{width:22px;height:22px;flex:none;margin-top:3px}
.alert b{color:#fff}
.deadline{display:flex;align-items:flex-start;gap:10px;margin-top:14px;padding:14px 18px;border-radius:14px;background:rgba(255,228,94,.1);box-shadow:0 0 0 1px rgba(255,228,94,.4) inset;color:#ffe98a;font-weight:700;font-size:15px}
.deadline svg{width:20px;height:20px;flex:none;margin-top:3px}

/* generator */
.gen{display:grid;gap:22px;margin-top:30px}
@media(min-width:1024px){.gen{grid-template-columns:minmax(0,1fr) minmax(0,1.05fr);align-items:start}}
.gen>*{min-width:0}
.panel{padding:22px 18px;border-radius:var(--r-lg);background:linear-gradient(170deg,#fff 0%,var(--paper) 60%,var(--paper2) 100%);box-shadow:var(--lift)}
@media(min-width:600px){.panel{padding:30px 28px}}
.priv{display:flex;gap:10px;align-items:center;padding:10px 14px;border-radius:12px;background:linear-gradient(180deg,#eefaf4,#e2f5ea);box-shadow:0 0 0 1px #bfe6d1 inset;color:#0f6b44;font-size:13.5px;font-weight:700;line-height:1.5}
.priv svg{width:18px;height:18px;flex:none}
.fld{margin-top:18px}
.fld>label,.fld>.lb{display:block;font:800 15.5px/1.4 var(--f-h);margin-bottom:8px}
.fld .hint{font:500 12.5px var(--f-b);color:var(--mute);margin-left:6px}
.two{display:grid;gap:0 16px}
@media(min-width:600px){.two{grid-template-columns:1fr 1fr}}
.two>*{min-width:0}
input[type=text],input[type=email],input[type=date],input[type=number],select{width:100%;max-width:100%;min-width:0;font:inherit;font-size:16px;color:var(--ink);padding:12px 14px;min-height:54px;border-radius:14px;border:1px solid var(--line);
  background:linear-gradient(180deg,#fff,#f7f9fc);box-shadow:0 2px 4px -2px rgba(14,27,44,.08) inset,0 1px 0 #fff;transition:border-color .2s,box-shadow .2s;-webkit-appearance:none;appearance:none}
input[type=date]{display:block}
select{background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%2343506a' stroke-width='2' fill='none'/%3E%3C/svg%3E"),linear-gradient(180deg,#fff,#f7f9fc);background-repeat:no-repeat;background-position:right 14px center,0 0;padding-right:36px}
input:focus,select:focus{outline:none;border-color:var(--navy);box-shadow:0 0 0 4px rgba(26,47,79,.14)}
.rows{display:grid;gap:10px}
.row{display:grid;grid-template-columns:minmax(0,1fr) 108px 50px;gap:8px;animation:pop .35s cubic-bezier(.3,1.4,.5,1)}
@keyframes pop{from{opacity:0;transform:scale(.96) translateY(-6px)}}
.row button{min-height:54px;border-radius:14px;border:1px solid var(--line);background:linear-gradient(180deg,#fff,#f3f6fa);font-size:20px;color:var(--mute);cursor:pointer}
.add{margin-top:10px;min-height:48px;padding:0 18px;border-radius:14px;border:1.5px dashed #a9b7cc;background:transparent;color:var(--navy);font:800 15px var(--f-h);cursor:pointer}
.chips{display:grid;gap:8px}
.chip{position:relative;display:flex;gap:12px;align-items:flex-start;padding:14px;border-radius:14px;background:linear-gradient(180deg,#fff,#f8fafd);box-shadow:0 0 0 1px var(--line) inset,0 2px 6px -4px rgba(14,27,44,.15);cursor:pointer;font-size:15px;line-height:1.6;color:var(--ink2);transition:box-shadow .2s,background .2s,transform .15s;-webkit-tap-highlight-color:transparent}
.chip:active{transform:scale(.99)}
.chip input{position:absolute;opacity:0;pointer-events:none}
.chip .box{flex:none;width:24px;height:24px;margin-top:0;border-radius:7px;box-shadow:0 0 0 1.5px #a9b7cc inset;display:grid;place-items:center;transition:all .2s}
.chip .box svg{width:15px;height:15px;stroke:#fff;stroke-width:3.2;fill:none;opacity:0;transform:scale(.4);transition:all .2s}
.chip.on{background:linear-gradient(180deg,#f4f8ff,#e9f0fb);box-shadow:0 0 0 1.5px var(--navy) inset,0 8px 18px -12px rgba(26,47,79,.6);color:var(--ink)}
.chip.on .box{background:linear-gradient(160deg,#2a4a78,var(--navy2));box-shadow:none}
.chip.on .box svg{opacity:1;transform:none}
.letterwrap{position:relative}
@media(min-width:1024px){.letterwrap{position:sticky;top:20px}}
.tabs{display:grid;grid-template-columns:repeat(var(--n,3),1fr);gap:6px;padding:6px;border-radius:18px;background:linear-gradient(180deg,#dfe5ef,#d3dbe8);box-shadow:0 2px 6px -2px rgba(14,27,44,.2) inset}
.tab{min-height:56px;border:0;border-radius:13px;background:transparent;font:800 13.5px/1.3 var(--f-h);color:var(--ink2);cursor:pointer;padding:6px 4px;transition:all .25s}
.tab small{display:block;font:500 11px var(--f-b);color:var(--mute)}
.tab[aria-selected=true]{background:linear-gradient(180deg,#fff,#f4f7fb);color:var(--ink);box-shadow:0 1px 0 #fff inset,0 6px 14px -8px rgba(14,27,44,.5)}
.letter{position:relative;margin-top:14px;border-radius:6px 6px 22px 22px;background:
  repeating-linear-gradient(180deg,transparent 0 31px,rgba(26,47,79,.06) 31px 32px),
  linear-gradient(175deg,#fffefb 0%,#fbfcff 60%,#f1f4fa 100%);
  box-shadow:0 1px 0 #fff inset,0 0 0 1px rgba(14,27,44,.06),0 30px 50px -26px rgba(14,27,44,.55),0 6px 14px -8px rgba(14,27,44,.2)}
.letter::before{content:"";position:absolute;left:0;right:0;top:0;height:8px;border-radius:6px 6px 0 0;background:linear-gradient(90deg,var(--cyan),var(--red),var(--navy))}
.letter .meta{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:4px 10px;padding:20px 20px 0;font-size:12.5px;color:var(--mute)}
.letter .meta b{color:var(--ink);font:800 14.5px var(--f-h)}
.letter pre{margin:0;padding:12px 20px 22px;white-space:pre-wrap;word-break:break-word;font:15px/32px var(--f-b);color:var(--ink);min-height:380px;max-height:60vh;overflow:auto}
.letter pre .ph{background:rgba(255,228,94,.6);border-radius:4px;padding:0 3px}
.letter pre.flash{animation:flash .5s}
@keyframes flash{from{background:rgba(255,228,94,.18)}}
.acts{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px}
.btn-c{flex:1 1 200px;display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:58px;border:0;border-radius:16px;font:900 16.5px var(--f-h);color:#fff;cursor:pointer;background:linear-gradient(180deg,#4fa3ff,var(--red) 45%,var(--red2));box-shadow:0 1px 0 rgba(255,255,255,.4) inset,0 14px 26px -12px var(--redglow);transition:transform .15s}
.btn-c:active{transform:scale(.98)}
.btn-c.ok{background:linear-gradient(180deg,#2bd08d,var(--ok));box-shadow:0 1px 0 rgba(255,255,255,.4) inset,0 14px 26px -12px rgba(21,154,98,.7)}
.btn-c svg{width:18px;height:18px}
.btn-o{flex:1 1 150px;display:inline-flex;align-items:center;justify-content:center;min-height:58px;padding:0 16px;border-radius:16px;font:800 15px var(--f-h);color:var(--navy);text-decoration:none;background:linear-gradient(180deg,#fff,#f2f5fa);box-shadow:0 0 0 1px var(--line) inset,0 8px 18px -12px rgba(14,27,44,.4);text-align:center;line-height:1.3}
.where{margin-top:10px;font-size:13.5px;color:var(--mute)}

.dest{display:grid;gap:14px;margin-top:30px}
@media(min-width:768px){.dest{grid-template-columns:1fr 1fr;gap:16px}}
.dcard{position:relative;display:block;padding:22px 20px 20px 82px;border-radius:var(--r-lg);text-decoration:none;color:var(--ink);background:linear-gradient(170deg,#fff,var(--paper) 60%,var(--paper2));box-shadow:var(--lift);transition:transform .3s,box-shadow .3s;overflow:hidden}
.dcard:hover{transform:translateY(-4px)}
.dcard .ic{position:absolute;left:18px;top:20px;width:46px;height:46px;border-radius:14px;display:grid;place-items:center;background:linear-gradient(160deg,#2a4a78,var(--navy2));box-shadow:0 1px 0 rgba(255,255,255,.3) inset,0 10px 18px -8px rgba(14,27,44,.7)}
.dcard .ic svg{width:22px;height:22px;stroke:#fff;fill:none;stroke-width:2}
.dcard.hot .ic{background:linear-gradient(160deg,#4fa3ff,var(--red2))}
.dcard b{display:block;font:800 17px/1.5 var(--f-h)}
.dcard span{display:block;margin-top:4px;font-size:14.5px;color:var(--ink2)}
.dcard em{display:inline-block;margin-top:10px;font:700 12.5px var(--f-h);font-style:normal;color:var(--red2);padding:3px 10px;border-radius:999px;background:rgba(31,123,255,.09)}

.faq{margin-top:28px;display:grid;gap:12px}
details{border-radius:20px;background:linear-gradient(170deg,#fff,var(--paper2));box-shadow:var(--lift);overflow:hidden}
summary{list-style:none;cursor:pointer;padding:20px 56px 20px 20px;position:relative;font:800 16.5px/1.55 var(--f-h)}
summary::-webkit-details-marker{display:none}
summary::after{content:"";position:absolute;right:22px;top:50%;width:12px;height:12px;border-right:2.5px solid var(--navy);border-bottom:2.5px solid var(--navy);transform:translateY(-70%) rotate(45deg);transition:transform .3s}
details[open] summary::after{transform:translateY(-30%) rotate(-135deg)}
details .a{padding:0 20px 20px;color:var(--ink2);font-size:15.5px}

.rel{display:grid;gap:12px;margin-top:26px}
@media(min-width:600px){.rel{grid-template-columns:1fr 1fr}}
@media(min-width:960px){.rel{grid-template-columns:repeat(3,1fr)}}
.rcard{display:flex;flex-direction:column;gap:6px;padding:20px;border-radius:22px;text-decoration:none;color:var(--ink);background:linear-gradient(170deg,#fff,var(--paper2));box-shadow:var(--lift);transition:transform .3s}
.rcard:hover{transform:translateY(-4px) rotate(-.3deg)}
.rcard .cat{font:700 12px var(--f-h);color:var(--red)}
.rcard b{font:800 16.5px/1.5 var(--f-h)}
.rcard span{font-size:14px;color:var(--ink2);line-height:1.65}

.srcs{margin-top:22px;font-size:13px;color:var(--mute)}
.srcs a{color:var(--ink2)}
.srcs ul{margin:6px 0 0;padding-left:18px}

footer{padding:40px 0 90px;color:#8c97ab;font-size:13px}
footer p{margin:0 0 8px}
footer a{color:#5b6a83}

.toast{position:fixed;left:50%;bottom:24px;transform:translate(-50%,160%);padding:14px 20px;border-radius:14px;background:linear-gradient(180deg,#1d3557,#0e1b2c);color:#fff;font:700 14px var(--f-h);box-shadow:0 20px 40px -14px rgba(0,0,0,.6);transition:transform .4s cubic-bezier(.3,1.4,.5,1),visibility .4s;visibility:hidden;z-index:50;width:max-content;max-width:calc(100vw - 32px);text-align:center}
.toast.on{transform:translate(-50%,0);visibility:visible}
.fab{position:fixed;left:16px;right:16px;bottom:14px;z-index:40;display:none!important}
@media(max-width:1023px){.fab.on{display:flex!important}}

/* hub */
.hubhero h1{font-size:clamp(30px,8vw,56px)}
.search{position:relative;margin-top:22px;max-width:560px}
.search input{min-height:60px;padding-left:50px;font-size:17px;border-radius:18px;border:0;box-shadow:0 0 0 1px rgba(255,255,255,.2) inset,0 16px 30px -14px rgba(0,0,0,.6)}
.search svg{position:absolute;left:16px;top:50%;width:22px;height:22px;transform:translateY(-50%);stroke:var(--mute);fill:none;stroke-width:2.4}
.cats{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.cats button{min-height:42px;padding:0 16px;border-radius:999px;border:0;font:700 14px var(--f-h);color:#dbe4f2;background:rgba(255,255,255,.08);box-shadow:0 0 0 1px rgba(255,255,255,.16) inset;cursor:pointer}
.cats button[aria-pressed=true]{background:linear-gradient(180deg,#4fa3ff,var(--red2));color:#fff;box-shadow:0 8px 18px -8px var(--redglow)}
.hubgrid{display:grid;gap:14px;margin-top:-30px;position:relative;z-index:3}
@media(min-width:640px){.hubgrid{grid-template-columns:1fr 1fr}}
@media(min-width:1000px){.hubgrid{grid-template-columns:repeat(3,1fr);gap:18px}}
.hcard{position:relative;display:flex;flex-direction:column;gap:8px;padding:22px 20px 20px;border-radius:24px;text-decoration:none;color:var(--ink);background:linear-gradient(170deg,#fff,var(--paper) 55%,var(--paper2));box-shadow:var(--lift);transition:transform .35s,box-shadow .35s;transform-style:preserve-3d}
.hcard:hover{transform:translateY(-6px) rotateX(3deg);box-shadow:0 1px 0 #fff inset,0 30px 50px -26px rgba(14,27,44,.55)}
.hcard .cat{font:700 12.5px var(--f-h);color:var(--red)}
.hcard b{font:900 19px/1.45 var(--f-h)}
.hcard span{font-size:14.5px;color:var(--ink2);line-height:1.7}
.hcard .amt{position:absolute;right:16px;top:16px;font:900 13px var(--f-h);color:var(--red2);background:rgba(31,123,255,.09);padding:4px 10px;border-radius:999px}
.hcard.hide{display:none}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
  .stamp{opacity:.92;transform:rotate(-16deg)}
  .hl{background-size:100% 100%}
}

/* brand logo (hub hero) */
.hubhero .hw{align-items:center}
.logo3d{position:relative;display:grid;place-items:center;perspective:1000px;order:-1}
@media(min-width:960px){.logo3d{order:0}}
.logo3d img{width:min(70vw,300px);height:auto;transform:rotateY(-14deg) rotateX(6deg);filter:drop-shadow(0 30px 40px rgba(0,0,0,.55)) drop-shadow(0 0 30px rgba(31,123,255,.45));animation:float 6s ease-in-out infinite}
@media(min-width:960px){.logo3d img{width:440px}}
.logo3d::after{content:"";position:absolute;bottom:-6%;left:20%;right:20%;height:40px;border-radius:50%;background:radial-gradient(ellipse,rgba(31,123,255,.45),transparent 70%);filter:blur(12px)}
@keyframes float{0%,100%{transform:rotateY(-14deg) rotateX(6deg) translateY(0)}50%{transform:rotateY(-8deg) rotateX(3deg) translateY(-12px)}}

/* ===== roadmap (やることの順番) ===== */
.road{background:linear-gradient(180deg,#e6ecf6,#eef2f8)}
.phases{display:flex;gap:6px;list-style:none;margin:20px 0 0;padding:6px;border-radius:18px;background:linear-gradient(180deg,#dbe3f0,#d0d9e8);box-shadow:0 2px 6px -2px rgba(14,27,44,.2) inset;max-width:640px}
.phases li{flex:1;display:flex;align-items:center;justify-content:center;gap:8px;min-height:48px;border-radius:13px;font:800 14px/1.2 var(--f-h);color:var(--ink);background:linear-gradient(180deg,#fff,#f4f7fb);box-shadow:0 1px 0 #fff inset,0 6px 12px -8px rgba(14,27,44,.45);text-align:center;padding:4px 6px}
.phases li b{display:inline-grid;place-items:center;width:24px;height:24px;flex:none;border-radius:50%;color:#fff;font-size:13px;background:linear-gradient(160deg,#4fa3ff,var(--red2))}
.alert2,.dl2{display:flex;gap:10px;align-items:flex-start;margin-top:14px;padding:14px 16px;border-radius:14px;font-size:15px;line-height:1.7;max-width:820px}
.alert2{background:linear-gradient(170deg,#fff3f5,#ffe6ea);box-shadow:0 0 0 1px #f5c2cb inset;color:#7a1f2c}
.alert2 b{color:var(--alert2)}
.dl2{background:linear-gradient(170deg,#fffbe6,#fff3c4);box-shadow:0 0 0 1px #f1dc8a inset;color:#6b5300;font-weight:700}
.alert2 svg,.dl2 svg{width:20px;height:20px;flex:none;margin-top:3px}
.phase{margin-top:34px}
.ph-h{display:flex;flex-wrap:wrap;align-items:baseline;gap:4px 12px;font:900 clamp(21px,5.4vw,28px)/1.3 var(--f-h);margin-bottom:14px}
.ph-h span{font:900 13px/1 var(--f-h);color:#fff;padding:6px 10px;border-radius:8px;background:linear-gradient(160deg,#4fa3ff,var(--red2));letter-spacing:.06em}
.ph-h small{width:100%;font:500 14px var(--f-b);color:var(--ink2)}
.rlist{position:relative;display:grid;gap:12px;padding-left:22px}
.rlist::before{content:"";position:absolute;left:21px;top:22px;bottom:22px;width:3px;border-radius:3px;background:linear-gradient(180deg,var(--cyan),var(--red2))}
.rnode{position:relative;display:flex;gap:14px;align-items:flex-start;margin-left:-22px;padding:18px 16px 18px 0;border-radius:22px;background:transparent}
.rnum{position:relative;z-index:1;flex:none;display:grid;place-items:center;width:46px;height:46px;border-radius:50%;font:900 20px/1 var(--f-h);color:#fff;background:radial-gradient(circle at 35% 30%,#7cc0ff,var(--red) 55%,var(--red2));box-shadow:0 0 0 5px #eaf0f8,0 10px 20px -8px var(--redglow)}
.rbody{flex:1;min-width:0;padding:16px 18px;border-radius:20px;background:linear-gradient(170deg,#fff,var(--paper) 60%,var(--paper2));box-shadow:var(--lift);margin-top:-8px}
.rbody h3{margin:0;font:900 18.5px/1.45 var(--f-h)}
.rbody>p{margin:6px 0 0;color:var(--ink2);font-size:15px}
.rbtns{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}
.rbtn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 16px;border-radius:14px;font:800 15px/1.2 var(--f-h);text-decoration:none;color:var(--navy);background:linear-gradient(180deg,#fff,#eef3fa);box-shadow:0 0 0 1px var(--line) inset,0 6px 14px -10px rgba(14,27,44,.5);text-align:center}
.rbtn.main{color:#fff;background:linear-gradient(180deg,#4fa3ff,var(--red) 45%,var(--red2));box-shadow:0 1px 0 rgba(255,255,255,.4) inset,0 10px 20px -10px var(--redglow)}
.rbtn::after{content:"›";margin-left:8px;font-size:18px;line-height:1}
.after{margin-top:12px;padding:10px 12px;border-radius:12px;background:linear-gradient(170deg,#eefaf4,#e0f4e9);box-shadow:0 0 0 1px #c3e8d4 inset;color:#0f5d3b;font-size:14.5px;line-height:1.65}
.after b{display:block;font:800 12.5px var(--f-h);color:var(--ok);margin-bottom:2px}
.more{margin-top:10px;background:none;box-shadow:none;border-radius:0}
.more summary{padding:0 0 0 2px;font:700 14px var(--f-h);color:var(--red2);display:inline-block}
.more summary::after{display:none}
.more summary::before{content:"＋ "}
.more[open] summary::before{content:"− "}
.more p{margin:6px 0 0;color:var(--ink2);font-size:15px}
.rbody{position:relative}
.rnode .ck{position:absolute;right:10px;top:12px;width:34px;height:34px;border-radius:11px;border:0;display:grid;place-items:center;background:#fff;box-shadow:0 0 0 1.5px #b9c6d8 inset;cursor:pointer}
.rnode .ck svg{width:18px;height:18px;stroke:#fff;stroke-width:3;fill:none;stroke-dasharray:24;stroke-dashoffset:24;transition:stroke-dashoffset .3s}
.rnode[data-k] .rbody{padding-right:52px}
.rnode.done .ck{background:linear-gradient(160deg,#25c483,var(--ok));box-shadow:none}
.rnode.done .ck svg{stroke-dashoffset:0}
.rnode.done .rbody{opacity:.6}
.rnode.done .rnum{background:linear-gradient(160deg,#25c483,var(--ok))}
@media(min-width:768px){.rlist{padding-left:26px}.rnode{margin-left:-26px}.rnum{width:52px;height:52px}.rlist::before{left:24px}}

/* hub cards: readable on light bg + clearly free */
.hubgrid~section,main{background:transparent}
.hcard{box-shadow:0 1px 0 #fff inset,0 0 0 1px rgba(26,47,79,.10),0 18px 36px -20px rgba(14,27,44,.5);border-top:4px solid var(--red)}
.hcard .amt{font:800 12px var(--f-h);color:var(--ink2);background:#eef2f8;box-shadow:0 0 0 1px var(--line) inset}
.hcard .amt.bill{color:#9a2236;background:#fff1f3;box-shadow:0 0 0 1px #f5c9d1 inset}
.hcard b{padding-right:0}
.hcard .go{margin-top:auto;padding-top:10px;font:800 13.5px var(--f-h);font-style:normal;color:var(--red2)}
.hcard .go::after{content:" ›"}
body:has(.hubgrid){background:linear-gradient(180deg,#dfe6f1,#d7dfec)}

/* ===== offers (PR) ===== */
.cheap{background:linear-gradient(180deg,#eef2f8,#e6ecf6)}
.offers{display:grid;gap:12px;margin-top:24px}
@media(min-width:640px){.offers{grid-template-columns:1fr 1fr}}
@media(min-width:1000px){.offers{grid-template-columns:repeat(3,1fr)}}
.ocard{position:relative;display:flex;flex-direction:column;gap:6px;padding:20px 18px;border-radius:22px;text-decoration:none;color:var(--ink);background:linear-gradient(170deg,#fff,var(--paper) 60%,var(--paper2));box-shadow:var(--lift);transition:transform .3s}
.ocard:hover{transform:translateY(-4px)}
.ocard.top{box-shadow:0 0 0 2px var(--red),0 22px 44px -20px var(--redglow);background:linear-gradient(170deg,#fff,#f2f7ff)}
.ocard .otag{position:absolute;top:-10px;left:16px;font:900 12px/1 var(--f-h);color:#fff;padding:6px 10px;border-radius:999px;background:linear-gradient(160deg,#4fa3ff,var(--red2))}
.ocard b{font:900 19px/1.4 var(--f-h);margin-top:4px}
.ocard span{font-size:14.5px;color:var(--ink2)}
.ocard i{margin-top:auto;padding-top:8px;font:800 14px var(--f-h);font-style:normal;color:var(--red2)}
.ocard i::after{content:" ›"}
.prnote{display:flex;gap:8px;align-items:flex-start;margin-top:16px;font-size:12.5px;color:var(--mute);line-height:1.7}
.prnote span{flex:none;font:800 11px/1 var(--f-h);color:#fff;background:#7a859a;padding:4px 6px;border-radius:6px;margin-top:2px}
.hubcheap{display:flex;align-items:center;gap:16px;margin-top:22px;padding:18px 20px;border-radius:22px;text-decoration:none;color:var(--ink);background:linear-gradient(120deg,#fff,#eaf3ff);box-shadow:0 0 0 2px var(--red),var(--lift)}
.hubcheap b{display:block;font:900 clamp(18px,4.6vw,22px)/1.4 var(--f-h)}
.hubcheap span{font-size:14px;color:var(--ink2)}
.hubcheap i{margin-left:auto;flex:none;font:900 15px var(--f-h);font-style:normal;color:#fff;padding:12px 16px;border-radius:14px;background:linear-gradient(180deg,#4fa3ff,var(--red) 45%,var(--red2))}
.hubcheap small{display:inline-block;font:800 10.5px/1 var(--f-h);color:#fff;background:#7a859a;padding:3px 5px;border-radius:5px;margin-right:6px;vertical-align:2px}
@media(max-width:560px){.hubcheap{flex-direction:column;align-items:flex-start}.hubcheap i{margin-left:0}}
.ocrit{margin:14px 0 0;font-size:14px;color:var(--ink2)}
.orank{position:absolute;top:-12px;left:14px;display:inline-flex;align-items:baseline;gap:1px;font:900 20px/1 var(--f-h);color:#fff;padding:7px 12px;border-radius:12px;background:linear-gradient(160deg,#9aa6b8,#6b778b);box-shadow:0 8px 16px -8px rgba(14,27,44,.6)}
.orank small{font-size:11px}
.ocard:nth-child(1) .orank{background:linear-gradient(160deg,#ffd76a,#e0a200)}
.ocard:nth-child(2) .orank{background:linear-gradient(160deg,#dfe6ef,#9aa8bb)}
.ocard:nth-child(3) .orank{background:linear-gradient(160deg,#f0b48a,#b86b3c)}
.ocard{padding-top:28px}
.offers{row-gap:22px}
/* reminder */
.remind{background:transparent}
.rbox{padding:22px 18px;border-radius:24px;background:linear-gradient(160deg,#fff,#f3f8ff);box-shadow:0 0 0 2px rgba(31,123,255,.25),var(--lift)}
.rhead{display:flex;gap:14px;align-items:flex-start}
.rico{flex:none;width:48px;height:48px;border-radius:14px;display:grid;place-items:center;color:#fff;background:linear-gradient(160deg,#4fa3ff,var(--red2));box-shadow:0 10px 18px -8px var(--redglow)}
.rico svg{width:26px;height:26px}
.rhead h2{margin:0;font:900 clamp(19px,5vw,24px)/1.35 var(--f-h)}
.rhead p{margin:4px 0 0;color:var(--ink2);font-size:14.5px}
.rform{margin-top:16px}
.rform label{display:block;font:800 14.5px var(--f-h);margin-bottom:6px}
.rbtns2{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}
.rbtns2 .rbtn{flex:1 1 200px;border:0;cursor:pointer;font-family:var(--f-h)}
.rbtns2 .rbtn[aria-disabled=true]{opacity:.45;pointer-events:none}
.rnote{margin:10px 0 0;font-size:12.5px;color:var(--mute)}

.apx{position:absolute;width:1px;height:1px;opacity:0;pointer-events:none}