:root{
  --ink:#1c2430;--sub:#5a6574;--line:#e3e7ec;--bg:#ffffff;--soft:#f5f7fa;
  --main:#e8622c;--main-dark:#c44d1c;--navy:#1f3550;
  --radius:14px;--w:1080px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:"Hiragino Sans","Hiragino Kaku Gothic ProN","Noto Sans JP","Yu Gothic UI","Yu Gothic",Meiryo,sans-serif;color:var(--ink);background:var(--bg);line-height:1.8;font-size:16px;-webkit-text-size-adjust:100%}
img{max-width:100%;display:block}
a{color:inherit}
.wrap{max-width:var(--w);margin:0 auto;padding:0 20px}

/* header */
.hd{position:sticky;top:0;z-index:10;background:rgba(255,255,255,.95);backdrop-filter:blur(6px);border-bottom:1px solid var(--line)}
.hd .wrap{display:flex;align-items:center;justify-content:space-between;height:60px}
.logo{font-weight:800;font-size:20px;text-decoration:none;letter-spacing:.02em}
.logo span{color:var(--main)}
.nav{display:flex;gap:20px;align-items:center;font-size:14px}
.nav a{text-decoration:none;color:var(--sub)}
.nav a:hover{color:var(--ink)}
.nav .btn{color:#fff}
@media(max-width:760px){.nav a:not(.btn){display:none}}

/* buttons */
.btn{display:inline-block;background:var(--main);color:#fff;text-decoration:none;font-weight:700;padding:12px 26px;border-radius:999px;transition:background .2s}
.btn:hover{background:var(--main-dark)}
.btn.sm{padding:8px 18px;font-size:14px}
.btn.ghost{background:transparent;color:var(--ink);border:2px solid var(--ink)}
.btn.ghost:hover{background:var(--ink);color:#fff}

/* hero */
.hero{background:linear-gradient(160deg,#fff7f2 0%,#fff 55%,#f2f6fb 100%);padding:80px 0 72px}
.hero .tag{display:inline-block;background:var(--navy);color:#fff;font-size:13px;font-weight:700;padding:4px 12px;border-radius:6px;margin-bottom:18px}
.hero h1{font-size:clamp(28px,5vw,46px);line-height:1.35;font-weight:800;letter-spacing:.01em}
.hero h1 em{font-style:normal;color:var(--main)}
.hero p.lead{margin:20px 0 30px;color:var(--sub);font-size:clamp(15px,2vw,18px);max-width:640px}
.hero .cta{display:flex;gap:12px;flex-wrap:wrap}
.points{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:44px;max-width:760px}
.points div{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:14px 16px;font-size:14px;color:var(--sub)}
.points b{display:block;font-size:22px;color:var(--ink)}
@media(max-width:640px){.points{grid-template-columns:1fr}}

/* sections */
section{padding:76px 0}
section.soft{background:var(--soft)}
.sec-title{text-align:center;margin-bottom:44px}
.sec-title small{display:block;color:var(--main);font-weight:700;letter-spacing:.15em;font-size:13px}
.sec-title h2{font-size:clamp(24px,3.6vw,32px);line-height:1.4}
.sec-title p{color:var(--sub);margin-top:10px}

.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.grid2{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
@media(max-width:860px){.grid3{grid-template-columns:1fr}.grid2{grid-template-columns:1fr}}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px}
.card h3{font-size:19px;margin-bottom:8px}
.card p{color:var(--sub);font-size:15px}
.num{display:inline-flex;width:36px;height:36px;border-radius:50%;background:var(--main);color:#fff;font-weight:800;align-items:center;justify-content:center;margin-bottom:12px}

/* monitor */
.monitor{border:3px solid var(--main);border-radius:20px;padding:40px;background:#fff;position:relative}
.monitor .ribbon{position:absolute;top:-16px;left:32px;background:var(--main);color:#fff;font-weight:800;padding:4px 16px;border-radius:999px;font-size:14px}
.monitor h2{font-size:clamp(22px,3.4vw,30px);line-height:1.45;margin-bottom:12px}
.monitor .price{display:flex;gap:24px;flex-wrap:wrap;margin:22px 0}
.monitor .price div{background:var(--soft);border-radius:12px;padding:14px 22px}
.monitor .price b{font-size:28px;color:var(--main)}
.monitor ul{list-style:none;margin:10px 0 26px}
.monitor li{padding-left:26px;position:relative;margin:6px 0}
.monitor li::before{content:"✓";position:absolute;left:0;color:var(--main);font-weight:800}
@media(max-width:640px){.monitor{padding:32px 20px}}

/* price table */
.plan{display:flex;flex-direction:column}
.plan .yen{font-size:30px;font-weight:800;margin:6px 0 2px}
.plan .yen small{font-size:14px;color:var(--sub);font-weight:400}
.plan ul{list-style:none;margin-top:14px;font-size:15px;color:var(--sub)}
.plan li{border-top:1px dashed var(--line);padding:8px 0}
.plan.hl{border:2px solid var(--main)}
.note{font-size:13px;color:var(--sub);margin-top:16px;text-align:center}

/* samples */
.sample{display:block;text-decoration:none;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:#fff;transition:transform .2s,box-shadow .2s}
.sample:hover{transform:translateY(-3px);box-shadow:0 10px 30px rgba(20,30,50,.08)}
.sample .thumb{height:150px;display:flex;align-items:center;justify-content:center;color:#fff;font-weight:800;font-size:20px}
.sample .body{padding:18px 20px}
.sample .body p{color:var(--sub);font-size:14px}

/* faq */
details{background:#fff;border:1px solid var(--line);border-radius:12px;padding:18px 22px;margin-bottom:12px}
summary{font-weight:700;cursor:pointer;list-style:none}
summary::before{content:"Q. ";color:var(--main)}
details p{margin-top:10px;color:var(--sub)}

/* table */
.info{width:100%;border-collapse:collapse;background:#fff;border-radius:12px;overflow:hidden}
.info th,.info td{text-align:left;padding:14px 18px;border-bottom:1px solid var(--line);font-size:15px;vertical-align:top}
.info th{width:30%;background:var(--soft);font-weight:700}

/* contact */
.contact{text-align:center;background:var(--navy);color:#fff}
.contact .sec-title p{color:#c9d4e2}
.contact .btn{font-size:18px;padding:16px 40px}

/* footer */
.ft{padding:28px 0;font-size:13px;color:var(--sub);text-align:center}
.ft a{margin:0 8px}

/* doc pages */
.doc{max-width:780px;margin:0 auto;padding:56px 20px}
.doc h1{font-size:28px;margin-bottom:24px}
.doc h2{font-size:19px;margin:30px 0 8px}
.doc p,.doc li{color:#333;font-size:15px}
.doc ul{padding-left:1.4em}