/* 試してAI — design tokens
   bg:#f4f6f8 / surface:#fff / ink:#16262e / teal:#0e6b63 / marker:#ffdf57 / line:#d8dee3 / dim:#5b6b73
   type: IBM Plex Sans JP (display/body), IBM Plex Mono (実測数値) */
:root{
  --bg:#f4f6f8; --surface:#ffffff; --ink:#16262e; --teal:#0e6b63;
  --marker:#ffdf57; --line:#d8dee3; --dim:#5b6b73;
}
*{box-sizing:border-box; margin:0; padding:0;}
body{
  font-family:'IBM Plex Sans JP', 'Hiragino Kaku Gothic ProN', sans-serif;
  background:var(--bg); color:var(--ink); line-height:1.85; font-size:15px;
}
.mono{font-family:'IBM Plex Mono', monospace;}
a{color:var(--teal);}
.wrap{max-width:920px; margin:0 auto; padding:0 20px;}

/* header */
header{background:var(--surface); border-bottom:2px solid var(--ink);}
.head-in{display:flex; align-items:center; justify-content:space-between; padding:14px 0;}
.logo{font-size:22px; font-weight:700; letter-spacing:1px; color:var(--ink); text-decoration:none;}
.logo .ai{color:var(--teal);}
.logo small{display:block; font-size:10px; font-weight:500; color:var(--dim); letter-spacing:2px;}
nav a{font-size:13px; margin-left:18px; text-decoration:none; color:var(--ink);}
nav a:hover{color:var(--teal);}

/* hero */
.hero{padding:56px 0 40px;}
.hero h1{font-size:clamp(26px,4.6vw,40px); font-weight:700; line-height:1.5; letter-spacing:.5px;}
.hero h1 .hl{background:linear-gradient(transparent 62%, var(--marker) 62%); padding:0 2px;}
.hero p.lead{margin-top:16px; color:var(--dim); max-width:640px;}
.stamp{
  display:inline-block; margin-top:22px; padding:8px 14px;
  border:2.5px solid var(--teal); color:var(--teal); font-weight:700; font-size:13px;
  letter-spacing:1px; transform:rotate(-2deg); background:var(--surface);
}
.method{display:grid; grid-template-columns:repeat(auto-fit,minmax(220px,1fr)); gap:14px; margin-top:34px;}
.method .m{background:var(--surface); border:1px solid var(--line); border-top:3px solid var(--teal); padding:16px;}
.method .m b{display:block; font-size:14px; margin-bottom:6px;}
.method .m span{font-size:13px; color:var(--dim);}

/* sections */
section{padding:44px 0;}
h2{font-size:21px; font-weight:700; margin-bottom:6px;}
.h-note{font-size:12px; color:var(--dim); margin-bottom:20px;}

/* comparison table */
.tablewrap{overflow-x:auto; background:var(--surface); border:1px solid var(--line);}
table{width:100%; border-collapse:collapse; min-width:640px;}
th,td{padding:12px 14px; font-size:13.5px; border-bottom:1px solid var(--line); text-align:left; vertical-align:top;}
thead th{background:var(--ink); color:#fff; font-size:12.5px; letter-spacing:.5px; font-weight:600;}
td .price{font-family:'IBM Plex Mono',monospace; font-weight:600; background:linear-gradient(transparent 62%, var(--marker) 62%);}
.badge{display:inline-block; font-size:11px; padding:2px 8px; border:1.5px solid; font-weight:600; letter-spacing:.5px;}
.badge.wait{color:var(--dim); border-color:var(--dim);}
.badge.done{color:var(--teal); border-color:var(--teal);}
.src-note{font-size:11.5px; color:var(--dim); margin-top:10px;}

/* article cards */
.cards{display:grid; grid-template-columns:repeat(auto-fit,minmax(260px,1fr)); gap:14px;}
.card{background:var(--surface); border:1px solid var(--line); padding:18px;}
.card .tag{font-size:11px; color:var(--teal); font-weight:700; letter-spacing:1px;}
.card h3{font-size:15.5px; margin:6px 0 8px; line-height:1.6;}
.card p{font-size:13px; color:var(--dim);}

/* operator */
.operator{background:var(--surface); border:1px solid var(--line); padding:22px; display:flex; gap:18px; flex-wrap:wrap;}
.operator .who{flex:1; min-width:260px;}
.operator .who b{font-size:15px;}
.operator .who p{font-size:13px; color:var(--dim); margin-top:6px;}

footer{border-top:2px solid var(--ink); background:var(--surface); padding:26px 0; margin-top:30px;}
footer .f-in{display:flex; justify-content:space-between; flex-wrap:wrap; gap:12px; font-size:12.5px; color:var(--dim);}
footer a{color:var(--dim); margin-right:14px;}