:root{
  --navy:#3B5BDB;
  --navy-deep:#1E3FAE;
  --blue-hi:#4A6CF7;
  --blue-lo:#2B4FD8;
  --grad:linear-gradient(135deg,#3B5BDB 0%,#2B4FD8 100%);
  --grad-hi:linear-gradient(135deg,#4A6CF7 0%,#3B5BDB 50%,#2B4FD8 100%);
  --grad-deep:linear-gradient(140deg,#2B4FD8 0%,#1E3FAE 100%);
  --yellow:#E6F60C;
  --lav1:#D8DEF3;
  --pale:#DDE7F5;
  --pale2:#E1EEF7;
  --bg:#F4F6FC;
  --off-white:#fdfdfd;
  --ink:#231F20;
  --sub:#4a4a52;
  --gray:#6E6E78;
  --line:#E4E8F4;
  --shadow:0 2px 6px rgba(30,63,174,.05),0 10px 26px rgba(30,63,174,.08);
  --shadow-hi:0 4px 10px rgba(30,63,174,.08),0 18px 38px rgba(30,63,174,.14);
  --r:20px;
  --head-h:56px;
  --tab-h:66px;
}
*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  font-family:'Zen Kaku Gothic New',sans-serif;
  color:var(--ink);
  background-color:var(--bg);
  background-image:radial-gradient(circle,rgba(74,108,247,.2) 1.2px,transparent 1.6px);
  background-size:18px 18px;
  line-height:1.7;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
  padding-bottom:calc(var(--tab-h) + 20px + env(safe-area-inset-bottom));
}
img{max-width:100%;display:block;}
a{color:inherit;}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
ul,ol{list-style:none;}
.wrap{max-width:960px;margin:0 auto;padding:0 16px;}
.narrow{max-width:760px;}
.en{font-family:'Bebas Neue',sans-serif;letter-spacing:.14em;font-weight:400;}
.marker{background:linear-gradient(transparent 60%,var(--yellow) 60%);font-weight:700;box-decoration-break:clone;-webkit-box-decoration-break:clone;}

.site-head{
  position:sticky;top:0;z-index:50;
  background:rgba(255,255,255,.78);
  backdrop-filter:saturate(180%) blur(20px);-webkit-backdrop-filter:saturate(180%) blur(20px);
  box-shadow:0 1px 0 rgba(30,63,174,.08);
}
.site-head .wrap{display:flex;align-items:center;gap:20px;height:var(--head-h);}
.brand{white-space:nowrap;flex-shrink:0;display:flex;align-items:center;gap:9px;text-decoration:none;color:var(--navy-deep);}
.brand::before{content:"";width:30px;height:30px;border-radius:9px;background:radial-gradient(circle at 72% 28%,var(--yellow) 0 4px,transparent 5px),var(--grad-hi);box-shadow:0 4px 10px rgba(59,91,219,.35);flex-shrink:0;}
.brand .en{font-size:22px;letter-spacing:.1em;line-height:1;padding-top:2px;}
.brand .ja{font-size:11px;letter-spacing:.12em;color:var(--gray);}
.pc-nav{display:none;gap:2px;margin-left:auto;}
.pc-nav a{font-size:13.5px;font-weight:500;letter-spacing:.04em;white-space:nowrap;text-decoration:none;color:var(--navy-deep);padding:6px 12px;border-radius:99px;line-height:1.6;transition:background .2s,color .2s;}
.pc-nav a:hover{background:rgba(59,91,219,.08);}
.pc-nav a.is-on{background:var(--grad);color:#fff;font-weight:700;box-shadow:0 4px 12px rgba(59,91,219,.3);}
.who{margin-left:auto;display:flex;align-items:center;gap:6px;font-size:12px;color:var(--sub);letter-spacing:.04em;white-space:nowrap;background:#fff;padding:4px 12px 4px 10px;border-radius:99px;line-height:1.6;}
.who::before{content:"";width:7px;height:7px;border-radius:50%;background:#2fa866;}
.pc-nav + .who{margin-left:12px;}

.tabbar{
  position:fixed;left:10px;right:10px;bottom:calc(10px + env(safe-area-inset-bottom));z-index:60;
  background:rgba(255,255,255,.8);
  backdrop-filter:saturate(180%) blur(22px);-webkit-backdrop-filter:saturate(180%) blur(22px);
  border:1px solid rgba(255,255,255,.7);
  border-radius:24px;
  box-shadow:0 10px 30px rgba(30,63,174,.16),0 2px 6px rgba(30,63,174,.06);
  display:grid;grid-template-columns:repeat(5,1fr);
  height:var(--tab-h);
  padding:0 4px;
}
.tabbar a{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;text-decoration:none;color:var(--gray);font-size:10.5px;letter-spacing:.02em;line-height:1.2;}
.tabbar svg{width:48px;height:30px;padding:4px 13px;border-radius:99px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;transition:background .2s;}
.tabbar a.is-on{color:var(--navy-deep);font-weight:700;}
.tabbar a.is-on svg{background:var(--grad);stroke:#fff;stroke-width:2;box-shadow:0 4px 10px rgba(59,91,219,.35);}

.page-head{padding:34px 0 26px;}
.page-head .en{display:block;font-size:15px;color:var(--navy);letter-spacing:.32em;margin-bottom:6px;}
.page-head h1{font-weight:700;font-size:clamp(23px,5.6vw,32px);letter-spacing:.1em;line-height:1.5;color:var(--navy-deep);}
.page-head p{margin-top:10px;color:var(--sub);font-size:14.5px;letter-spacing:.04em;}

.sec{padding:30px 0;}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:12px;margin-bottom:16px;}
.sec-head .en{display:block;font-size:14px;color:var(--navy);letter-spacing:.3em;line-height:1;margin-bottom:6px;}
.sec-title{font-weight:700;font-size:clamp(19px,4.6vw,23px);letter-spacing:.1em;color:var(--navy-deep);line-height:1.5;}
.sec-title span{background:linear-gradient(transparent 62%,var(--yellow) 62%);padding:0 3px;}
.more{font-size:12.5px;font-weight:700;color:var(--navy);text-decoration:none;letter-spacing:.06em;white-space:nowrap;line-height:1.6;background:#fff;padding:5px 14px;border-radius:99px;box-shadow:0 1px 4px rgba(30,63,174,.1);}

.tags{display:flex;flex-wrap:wrap;gap:6px;}
.tag-step{display:inline-flex;align-items:center;gap:6px;background:var(--grad);color:#fff;font-size:12px;font-weight:700;letter-spacing:.06em;padding:3px 12px 3px 10px;border-radius:99px;text-decoration:none;line-height:1.5;}
.tag-step b{font-family:'Bebas Neue',sans-serif;font-weight:400;font-size:14px;letter-spacing:.08em;line-height:1;}
.tag-genre{display:inline-block;color:var(--navy-deep);font-size:12px;letter-spacing:.04em;padding:3px 11px;border-radius:99px;text-decoration:none;line-height:1.5;background:#EDF1FD;}
.tag-genre:hover{background:var(--navy);color:#fff;}
.new{display:inline-block;font-family:'Bebas Neue',sans-serif;font-size:13px;letter-spacing:.12em;background:var(--yellow);color:var(--navy-deep);padding:1px 8px 0;border-radius:99px;line-height:1.4;}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;background:var(--yellow);color:var(--navy-deep);font-weight:700;font-size:14.5px;letter-spacing:.1em;padding:14px 28px;border-radius:99px;text-decoration:none;box-shadow:0 8px 20px rgba(160,172,0,.28);transition:transform .2s ease,box-shadow .2s ease;}
.btn:hover{transform:translateY(-2px);}
.btn-line{display:inline-flex;align-items:center;justify-content:center;gap:8px;color:var(--navy);font-weight:700;font-size:13.5px;letter-spacing:.06em;padding:9px 20px;border-radius:99px;text-decoration:none;background:#fff;box-shadow:inset 0 0 0 1.5px var(--navy);transition:background .2s,color .2s;}
.btn-line:hover{background:var(--grad);color:#fff;box-shadow:none;}

.hero{
  background:
    radial-gradient(circle at 92% 8%,rgba(230,246,12,.22) 0,transparent 34%),
    radial-gradient(circle at 100% 100%,rgba(122,150,255,.55) 0,transparent 55%),
    linear-gradient(150deg,#2B4FD8 0%,#3B5BDB 45%,#4A6CF7 100%);
  position:relative;overflow:hidden;padding:28px 0 32px;color:#fff;
  border-radius:0 0 32px 32px;
}
.hero::before{
  content:"AI";position:absolute;right:-12px;top:-38px;
  font-family:'Bebas Neue',sans-serif;font-size:clamp(170px,40vw,300px);
  color:rgba(255,255,255,.07);line-height:1;pointer-events:none;
}
.hero .wrap{position:relative;}
.hero .hello{font-size:13px;color:rgba(255,255,255,.92);letter-spacing:.08em;}
.hero .hello b{display:inline-block;min-width:22px;text-align:center;background:var(--yellow);color:var(--navy-deep);border-radius:99px;padding:0 7px;margin:0 2px;line-height:1.6;}
.hero h1{font-weight:700;font-size:clamp(24px,6.4vw,38px);letter-spacing:.1em;line-height:1.55;color:#fff;margin:6px 0 20px;}
.hero h1 .hl{color:var(--yellow);}
.now-step{display:flex;align-items:center;gap:14px;background:#fff;border-radius:var(--r);padding:14px 16px;text-decoration:none;box-shadow:0 14px 34px rgba(16,33,110,.28);max-width:520px;}
.now-step .num{flex-shrink:0;width:54px;height:54px;border-radius:16px;background:var(--grad);display:flex;flex-direction:column;align-items:center;justify-content:center;color:#fff;line-height:1;box-shadow:0 6px 14px rgba(59,91,219,.35);}
.now-step .num small{font-family:'Bebas Neue',sans-serif;font-size:11px;letter-spacing:.12em;}
.now-step .num b{font-family:'Bebas Neue',sans-serif;font-weight:400;font-size:25px;color:var(--yellow);}
.now-step .txt{flex:1;min-width:0;}
.now-step .lbl,.now-step .nm,.now-step .bar{display:block;}
.now-step .lbl{font-size:11.5px;color:var(--gray);letter-spacing:.08em;}
.now-step .nm{font-weight:700;color:var(--navy-deep);font-size:15.5px;letter-spacing:.04em;line-height:1.5;}
.bar{height:7px;background:#E9EDF8;border-radius:99px;margin-top:7px;overflow:hidden;}
.bar i{display:block;height:100%;background:linear-gradient(90deg,#4A6CF7,#2B4FD8);border-radius:99px;}
.now-step .arrow{flex-shrink:0;width:32px;height:32px;border-radius:50%;background:#EDF1FD;color:var(--navy);font-size:16px;display:flex;align-items:center;justify-content:center;line-height:1;}

.news{background:#fff;border-radius:var(--r);box-shadow:var(--shadow);padding:2px 18px;}
.news li{display:grid;grid-template-columns:auto 1fr;gap:4px 14px;padding:14px 0;border-bottom:1px solid var(--line);font-size:14.5px;}
.news li:last-child{border-bottom:0;}
.news time{font-family:'Bebas Neue',sans-serif;font-size:15px;letter-spacing:.1em;color:var(--navy);line-height:1.7;}

.cards{display:grid;gap:16px;}
.card{
  display:block;position:relative;text-decoration:none;background:#fff;
  border-radius:var(--r);overflow:hidden;box-shadow:var(--shadow);
  transition:transform .25s ease,box-shadow .25s ease;
}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hi);}
.card .thumb{
  aspect-ratio:21/9;position:relative;
  background:
    radial-gradient(circle at 85% 15%,rgba(230,246,12,.18) 0,transparent 38%),
    radial-gradient(circle at 10% 110%,rgba(122,150,255,.6) 0,transparent 55%),
    linear-gradient(135deg,#2B4FD8 0%,#1E3FAE 100%);
  color:#fff;display:flex;flex-direction:column;justify-content:flex-end;padding:14px 16px;
}
.card .thumb .no{font-family:'Bebas Neue',sans-serif;font-size:44px;line-height:.9;letter-spacing:.04em;color:var(--yellow);}
.card .thumb .no small{font-size:15px;letter-spacing:.2em;color:#fff;margin-right:6px;vertical-align:.7em;}
.card .thumb .dur{position:absolute;right:12px;bottom:12px;font-family:'Bebas Neue',sans-serif;font-size:14px;letter-spacing:.08em;background:rgba(8,18,70,.5);backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);padding:1px 9px;border-radius:99px;}
.card .thumb .play{position:absolute;right:14px;top:14px;width:38px;height:38px;border-radius:50%;background:rgba(255,255,255,.2);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);display:flex;align-items:center;justify-content:center;}
.card .thumb .play::after{content:"";width:10px;height:12px;background:#fff;clip-path:polygon(0 0,100% 50%,0 100%);margin-left:3px;}
.card .body{padding:14px 16px 18px;}
.card .meta{display:flex;align-items:center;gap:8px;font-size:12px;color:var(--gray);letter-spacing:.06em;margin-bottom:4px;}
.card .meta time{font-family:'Bebas Neue',sans-serif;font-size:14px;letter-spacing:.1em;color:var(--navy);}
.card h3{font-size:16px;font-weight:700;line-height:1.6;letter-spacing:.03em;color:var(--ink);margin-bottom:10px;}

.rows{display:grid;gap:10px;}
.rows li a{display:flex;gap:14px;align-items:center;padding:12px;background:#fff;border-radius:18px;box-shadow:var(--shadow);text-decoration:none;}
.rows .r-sub{display:block;font-size:12px;color:var(--gray);letter-spacing:.06em;line-height:1.5;margin-bottom:2px;}
.rows .r-txt{flex:1;min-width:0;}
.rows .r-txt b{display:block;font-size:15px;line-height:1.55;letter-spacing:.02em;margin-bottom:4px;}

.levels{display:grid;gap:12px;}
.level{display:flex;align-items:center;gap:14px;padding:16px 18px;background:#fff;border-radius:var(--r);box-shadow:var(--shadow);text-decoration:none;transition:transform .2s,box-shadow .2s;}
.level:hover{transform:translateY(-2px);box-shadow:var(--shadow-hi);}
.level .en{font-size:13px;color:var(--navy);letter-spacing:.24em;display:block;line-height:1;margin-bottom:4px;}
.level b{display:block;font-size:16.5px;color:var(--navy-deep);letter-spacing:.06em;}
.level p{font-size:13px;color:var(--sub);line-height:1.6;margin-top:2px;}
.level .go{margin-left:auto;flex-shrink:0;font-size:12px;font-weight:700;color:var(--navy);letter-spacing:.04em;white-space:nowrap;background:#EDF1FD;padding:4px 10px;border-radius:99px;line-height:1.6;}
.doors{display:grid;grid-template-columns:1fr 1fr;gap:12px;}
.door{
  display:flex;flex-direction:column;justify-content:space-between;min-height:136px;
  padding:16px;border-radius:var(--r);text-decoration:none;color:#fff;
  background:radial-gradient(circle at 100% 0%,rgba(230,246,12,.2) 0,transparent 45%),var(--grad-hi);
  box-shadow:0 10px 24px rgba(59,91,219,.28);
  position:relative;overflow:hidden;
}
.door.alt{background:radial-gradient(circle at 100% 0%,rgba(122,150,255,.5) 0,transparent 50%),var(--grad-deep);box-shadow:0 10px 24px rgba(30,63,174,.28);}
.door .en{font-size:30px;line-height:1;letter-spacing:.06em;color:var(--yellow);}
.door b{font-size:15px;letter-spacing:.06em;}
.door small{display:block;font-size:12px;opacity:.9;font-weight:400;margin-top:2px;}

.sched{background:#fff;border-radius:var(--r);box-shadow:var(--shadow);padding:2px 16px;}
.sched li{display:grid;grid-template-columns:60px 1fr;gap:14px;padding:16px 0;border-bottom:1px solid var(--line);}
.sched li:last-child{border-bottom:0;}
.sched .day{text-align:center;color:#fff;line-height:1;background:var(--grad);border-radius:16px;padding:8px 0 9px;align-self:start;box-shadow:0 6px 14px rgba(59,91,219,.28);}
.sched .day .m{font-family:'Bebas Neue',sans-serif;font-size:13px;letter-spacing:.16em;display:block;}
.sched .day .d{font-family:'Bebas Neue',sans-serif;font-size:32px;display:block;margin:3px 0 2px;}
.sched .day .w{font-size:11px;display:block;}
.sched h3{font-size:15.5px;line-height:1.55;letter-spacing:.03em;}
.sched .time{font-size:13px;color:var(--sub);letter-spacing:.04em;}
.sched .note{font-size:13px;color:var(--gray);margin-top:2px;}
.sched .acts{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-top:10px;}

.guide-list{display:grid;gap:10px;}
.guide-list a{display:flex;align-items:center;gap:14px;padding:16px;background:#fff;border-radius:var(--r);box-shadow:var(--shadow);text-decoration:none;}
.guide-list .n{font-family:'Bebas Neue',sans-serif;font-size:30px;color:var(--navy);line-height:1;width:34px;flex-shrink:0;}
.guide-list b{display:block;font-size:15.5px;letter-spacing:.04em;color:var(--navy-deep);}
.guide-list p{font-size:13px;color:var(--sub);line-height:1.6;}
.guide-list .who-t{margin-left:auto;font-size:12px;color:var(--gray);white-space:nowrap;}
.howto{counter-reset:h;}
.howto li{counter-increment:h;position:relative;padding:0 0 18px 46px;font-size:15px;}
.howto li::before{content:counter(h,decimal-leading-zero);position:absolute;left:0;top:-2px;font-family:'Bebas Neue',sans-serif;font-size:26px;color:var(--navy);letter-spacing:.04em;line-height:1.2;}
.howto b{display:block;color:var(--navy-deep);}

.crumb{font-size:12px;color:var(--gray);letter-spacing:.04em;padding-top:18px;}
.crumb a{color:var(--navy);text-decoration:none;font-weight:700;}
.art-head{padding:12px 0 18px;}
.art-head .meta{display:flex;flex-wrap:wrap;align-items:center;gap:8px 12px;font-size:12.5px;color:var(--gray);letter-spacing:.05em;margin-bottom:8px;}
.art-head .meta time{font-family:'Bebas Neue',sans-serif;font-size:15px;letter-spacing:.1em;color:var(--navy);}
.art-head h1{font-weight:700;font-size:clamp(22px,5.6vw,31px);letter-spacing:.06em;line-height:1.55;color:var(--navy-deep);margin-bottom:14px;}
.art-head .lead{font-size:15px;color:var(--sub);margin-top:14px;letter-spacing:.03em;}
.video{
  aspect-ratio:16/9;border-radius:24px;overflow:hidden;position:relative;
  background:
    radial-gradient(circle at 12% 0%,rgba(255,255,255,.14) 0,transparent 40%),
    radial-gradient(circle at 90% 100%,rgba(122,150,255,.65) 0,transparent 55%),
    linear-gradient(140deg,#1E3FAE 0%,#2B4FD8 55%,#4A6CF7 100%);
  box-shadow:0 16px 36px rgba(30,63,174,.28);
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;color:#fff;
}
.video .pbtn{width:70px;height:70px;border-radius:50%;background:var(--yellow);display:flex;align-items:center;justify-content:center;box-shadow:0 0 0 10px rgba(230,246,12,.18),0 10px 24px rgba(8,18,70,.35);}
.video .pbtn::after{content:"";width:20px;height:24px;background:var(--navy-deep);clip-path:polygon(0 0,100% 50%,0 100%);margin-left:6px;}
.video .en{font-size:14px;letter-spacing:.32em;opacity:.9;}
.video .dur{position:absolute;right:14px;bottom:12px;font-family:'Bebas Neue',sans-serif;letter-spacing:.1em;font-size:15px;background:rgba(8,18,70,.45);padding:1px 10px;border-radius:99px;}
.art-sec{padding:30px 0 4px;}
.art-sec h2{display:flex;align-items:baseline;gap:10px;font-size:18px;font-weight:700;letter-spacing:.08em;color:var(--navy-deep);margin-bottom:12px;}
.art-sec h2 .en{font-size:12px;color:#fff;letter-spacing:.2em;background:var(--grad);padding:3px 10px 1px;border-radius:99px;line-height:1.4;align-self:center;}
.toc,.points,.files,.hw,details.trans{background:#fff;border-radius:var(--r);box-shadow:var(--shadow);}
.toc{padding:4px 16px;}
.toc li a{display:flex;gap:14px;padding:11px 0;border-bottom:1px solid var(--line);text-decoration:none;font-size:15px;align-items:baseline;}
.toc li:last-child a{border-bottom:0;}
.toc .ts{font-family:'Bebas Neue',sans-serif;font-size:16px;letter-spacing:.08em;color:var(--navy);min-width:58px;}
.toc li a:hover .s{text-decoration:underline;text-decoration-color:var(--navy);text-underline-offset:4px;}
.points{padding:6px 16px;}
.points li{display:flex;gap:14px;padding:12px 0;font-size:15.5px;line-height:1.6;border-bottom:1px solid var(--line);}
.points li:last-child{border-bottom:0;}
.points .pn{flex-shrink:0;width:34px;height:34px;border-radius:12px;background:var(--grad);color:#fff;font-family:'Bebas Neue',sans-serif;font-size:19px;line-height:1;display:flex;align-items:center;justify-content:center;padding-top:2px;}
.hls li{font-weight:700;font-size:clamp(16.5px,4.2vw,19px);line-height:1.7;letter-spacing:.05em;color:var(--navy-deep);padding:6px 0 12px;}
.hls li::before{content:"“";font-family:'Bebas Neue',sans-serif;color:var(--navy);font-size:30px;line-height:0;vertical-align:-.35em;margin-right:4px;}
.hls li span{background:linear-gradient(transparent 64%,var(--yellow) 64%);box-decoration-break:clone;-webkit-box-decoration-break:clone;}
.files{padding:2px 16px;}
.files li a{display:flex;align-items:center;gap:12px;padding:13px 0;border-bottom:1px solid var(--line);text-decoration:none;font-size:15px;}
.files li:last-child a{border-bottom:0;}
.ftype{flex-shrink:0;font-family:'Bebas Neue',sans-serif;font-size:13px;letter-spacing:.08em;width:46px;height:46px;display:flex;align-items:center;justify-content:center;border-radius:50%;background:#fff;color:var(--ft);box-shadow:inset 0 0 0 2px var(--ft);padding-top:2px;--ft:#4A4A52;}
.ftype.ft-pdf{--ft:#B42318;}
.ftype.ft-xlsx{--ft:#0B6B3A;}
.ftype.ft-docx{--ft:#1E3FAE;}
.ftype.ft-etc{--ft:#4A4A52;}
.files .dl{margin-left:auto;font-size:12px;font-weight:700;color:var(--navy);letter-spacing:.04em;white-space:nowrap;background:#EDF1FD;padding:4px 10px;border-radius:99px;line-height:1.6;}
.hw{padding:18px;}
.hw h3{font-size:17px;font-weight:700;line-height:1.6;letter-spacing:.04em;margin-bottom:6px;}
.hw .hw-meta{display:flex;flex-wrap:wrap;gap:4px 16px;font-size:13px;color:var(--sub);margin-bottom:8px;}
.hw .hw-meta b{color:var(--navy);font-weight:700;}
.hw p{font-size:15px;}
.hw .soon{margin-top:12px;font-size:12.5px;color:var(--gray);}
details.trans{padding:14px 18px;}
details.trans summary{cursor:pointer;list-style:none;display:flex;align-items:center;justify-content:space-between;gap:8px;font-size:14.5px;font-weight:700;color:var(--navy-deep);letter-spacing:.06em;}
details.trans summary::-webkit-details-marker{display:none;}
details.trans summary::after{content:"＋";width:28px;height:28px;border-radius:50%;background:var(--grad);color:#fff;display:flex;align-items:center;justify-content:center;font-size:14px;line-height:1;}
details.trans[open] summary::after{content:"－";}
details.trans p{margin-top:12px;font-size:14.5px;color:var(--sub);line-height:1.75;}

.mount{position:relative;margin:4px 0 8px;}
.mount svg{width:100%;height:auto;display:block;}
.steps{display:grid;gap:12px;}
.step{position:relative;background:#fff;border-radius:var(--r);box-shadow:var(--shadow);padding:16px 16px 14px;}
.step.is-now{box-shadow:0 0 0 2px var(--navy),var(--shadow-hi);}
.step-top{display:flex;align-items:center;gap:12px;margin-bottom:8px;}
.step .circ{flex-shrink:0;width:46px;height:46px;border-radius:15px;box-shadow:inset 0 0 0 1.5px var(--navy);display:flex;align-items:center;justify-content:center;font-family:'Bebas Neue',sans-serif;font-size:22px;color:var(--navy);background:#fff;}
.step.is-done .circ{background:var(--grad);color:#fff;box-shadow:none;}
.step.is-now .circ{background:var(--yellow);color:var(--navy-deep);box-shadow:none;}
.step .mo{font-size:12px;color:var(--gray);letter-spacing:.08em;display:block;line-height:1.3;}
.step h3{font-size:16.5px;letter-spacing:.04em;color:var(--navy-deep);line-height:1.5;}
.step .state{margin-left:auto;flex-shrink:0;font-size:11.5px;font-weight:700;letter-spacing:.06em;color:var(--gray);}
.step.is-done .state{color:var(--navy);}
.step.is-now .state{color:var(--navy-deep);background:var(--yellow);padding:2px 10px;border-radius:99px;}
.step .ai{font-size:13.5px;color:var(--sub);line-height:1.55;}
.step .get{margin-top:8px;font-size:14px;line-height:1.55;}
.step .get .en{color:var(--navy);font-size:17px;letter-spacing:.1em;margin-right:6px;}
.step .get b{background:linear-gradient(transparent 62%,var(--yellow) 62%);}
.step .s-links{margin-top:10px;display:flex;flex-wrap:wrap;gap:6px 14px;font-size:13px;}
.step .s-links a{color:var(--navy);text-decoration:none;border-bottom:1px solid var(--navy);}
.step .s-links .none{color:var(--gray);}

.genre-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;}
.genre-grid a{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:14px;border-radius:16px;background:#fff;box-shadow:var(--shadow);text-decoration:none;font-weight:700;font-size:14.5px;letter-spacing:.04em;color:var(--navy-deep);}
.genre-grid a.is-on{background:var(--grad);color:#fff;}
.genre-grid .c{font-family:'Bebas Neue',sans-serif;font-size:17px;letter-spacing:.06em;color:var(--navy);font-weight:400;}
.genre-grid a.is-on .c{color:var(--yellow);}

.sbox{display:flex;align-items:center;gap:8px;background:#fff;border-radius:99px;padding:5px 6px 5px 20px;box-shadow:var(--shadow);}
.sbox input{flex:1;min-width:0;border:0;outline:0;font:inherit;font-size:16px;background:transparent;padding:8px 0;color:var(--ink);}
.sbox button{background:var(--grad);color:#fff;border-radius:99px;padding:9px 20px;font-weight:700;font-size:14px;letter-spacing:.08em;box-shadow:0 4px 12px rgba(59,91,219,.3);}
.chips{display:flex;flex-wrap:wrap;gap:6px;margin-top:12px;}
.chips button{font-size:12.5px;border-radius:99px;padding:4px 13px;background:#fff;color:var(--sub);box-shadow:0 1px 4px rgba(30,63,174,.1);}
.hit-count{font-size:13px;color:var(--sub);margin:22px 0 10px;}
.hit-count b{font-family:'Bebas Neue',sans-serif;font-size:20px;color:var(--navy);letter-spacing:.06em;margin:0 2px;}
.snip{font-size:13px;color:var(--sub);line-height:1.55;margin-top:2px;}
mark{background:linear-gradient(transparent 55%,var(--yellow) 55%);color:inherit;}
.empty{padding:30px 0;text-align:center;color:var(--gray);font-size:14px;}

.site-foot{margin-top:40px;padding:30px 16px 26px;text-align:center;}
.site-foot .en{font-size:16px;letter-spacing:.4em;color:var(--navy);display:block;}
.site-foot small{font-size:11.5px;color:var(--gray);letter-spacing:.06em;}

@media (max-width:560px){
  .brand .ja{display:none;}
  .site-head .wrap{gap:10px;}
  .who{font-size:11px;padding:3px 10px 3px 9px;}
  .who-pre{display:none;}
  .files .dl-t{display:none;}
  .files li a{gap:10px;}
}
@media (min-width:720px){
  body{padding-bottom:0;font-size:16.5px;}
  .tabbar{display:none;}
  .pc-nav{display:flex;}
  .wrap{padding:0 28px;}
  .site-head .wrap{max-width:1140px;}
  .hero{max-width:1200px;margin:16px auto 0;border-radius:32px;width:calc(100% - 32px);}
  .cards{grid-template-columns:repeat(3,1fr);gap:20px;}
  .card .thumb{aspect-ratio:16/9;}
  .levels{grid-template-columns:repeat(3,1fr);}
  .level{flex-direction:column;align-items:flex-start;}
  .level .go{margin-left:0;margin-top:8px;}
  .doors{gap:16px;}
  .door{min-height:150px;padding:22px;}
  .steps{grid-template-columns:repeat(2,1fr);gap:16px;}
  .genre-grid{grid-template-columns:repeat(4,1fr);}
  .hero{padding:52px 0 54px;}
  .sec{padding:40px 0;}
  .two-col{display:grid;grid-template-columns:1.25fr 1fr;gap:40px;}
  .art-layout{display:grid;grid-template-columns:minmax(0,1fr) 330px;gap:40px;align-items:start;}
  .art-side{position:sticky;top:calc(var(--head-h) + 20px);}
}
@media (min-width:1000px){
  .steps{grid-template-columns:repeat(3,1fr);}
}