/* 郡山教材株式会社 共通スタイル */
:root{
  --green:#1F4A3B; --accent:#C0502F; --ink:#1E2A25; --text:#3D4843; --muted:#5B6660;
  --ground:#F6F3EC; --band:#EDE7DA; --line:#DDD6C8; --line2:#CFC6B4; --pale:#DCE5E0;
  --mincho:"Shippori Mincho B1","Hiragino Mincho ProN","Yu Mincho",serif;
  --gothic:"Zen Kaku Gothic New","Hiragino Kaku Gothic ProN","Yu Gothic","Meiryo",sans-serif;
  --pad:clamp(20px,8vw,120px);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:90px}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{margin:0;background:var(--ground);color:var(--ink);font-family:var(--gothic);font-size:16px;line-height:1.8;-webkit-text-size-adjust:100%}
img{max-width:100%;height:auto}
a{color:var(--green)} a:hover{color:var(--accent)}
:focus-visible{outline:3px solid var(--accent);outline-offset:3px}
.wrap{padding-inline:var(--pad)}
.mincho{font-family:var(--mincho)}
.eyebrow{display:block;font-size:13px;letter-spacing:.24em;color:var(--accent);font-weight:700;margin-bottom:12px}
h1,h2,h3{margin:0;line-height:1.5}
h2.sec{font-family:var(--mincho);font-weight:800;font-size:clamp(26px,3.2vw,44px)}
p{margin:0}
.lead{color:var(--text);line-height:2}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:52px;padding:0 30px;border-radius:999px;font-weight:700;text-decoration:none;font-size:16px;border:1.5px solid transparent;cursor:pointer;font-family:inherit}
.btn-green{background:var(--green);color:var(--ground)} .btn-green:hover{color:#fff;opacity:.9}
.btn-accent{background:var(--accent);color:#fff} .btn-accent:hover{color:#fff;opacity:.9}
.btn-line{border-color:var(--ink);color:var(--ink);background:transparent}
.btn-line:hover{background:var(--ink);color:var(--ground)}
.more{margin-top:28px}

/* header */
.site-header{position:sticky;top:0;z-index:50;background:var(--ground);border-bottom:1px solid var(--line)}
.site-header .inner{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:18px var(--pad)}
.logo{display:flex;align-items:center;gap:14px;text-decoration:none;color:var(--ink)}
.logo-mark{display:flex;align-items:center;justify-content:center;width:44px;height:44px;border-radius:10px;background:var(--green);color:var(--ground);font-family:var(--mincho);font-weight:800;font-size:22px}
.logo-name{display:flex;flex-direction:column;line-height:1.3}
.logo-name b{font-family:var(--mincho);font-size:21px;letter-spacing:.06em}
.logo-name small{font-size:11px;letter-spacing:.2em;color:var(--muted)}
.gnav{display:flex;align-items:center;gap:32px;font-size:15px;font-weight:500}
.gnav a{text-decoration:none;color:var(--ink)}
.gnav a[aria-current="page"]{color:var(--accent);font-weight:700}
.gnav .btn{min-height:44px;padding:0 22px;font-size:15px;color:#fff}
.nav-toggle{display:none;width:44px;height:44px;border-radius:999px;border:1.5px solid var(--ink);background:transparent;color:var(--ink);cursor:pointer;align-items:center;justify-content:center}
.tel-mini{display:none}
@media (max-width:960px){
  .nav-toggle,.tel-mini{display:inline-flex}
  .tel-mini{width:44px;height:44px;border-radius:999px;background:var(--accent);color:#fff;align-items:center;justify-content:center}
  .head-actions{display:flex;gap:8px}
  .logo-name small{display:none}
  .logo-name b{font-size:17px}
  .logo-mark{width:36px;height:36px;font-size:18px}
  .gnav{display:none;position:absolute;left:0;right:0;top:100%;flex-direction:column;align-items:stretch;gap:0;background:var(--ground);border-bottom:1px solid var(--line);padding:8px var(--pad) 20px}
  .gnav.open{display:flex}
  .gnav a{padding:14px 0;border-bottom:1px solid var(--line)}
  .gnav .btn{margin-top:16px;border-bottom:none}
}
@media (min-width:961px){.head-actions{display:none}}

/* hero */
.hero{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center;padding-block:clamp(48px,8vw,120px) clamp(40px,7vw,104px)}
.hero h1{font-family:var(--mincho);font-weight:800;font-size:clamp(32px,4vw,58px);line-height:1.35;margin:22px 0 28px}
.hero .lead{font-size:clamp(15px,1.3vw,18px);max-width:34em}
.hero .actions{display:flex;flex-wrap:wrap;gap:16px;margin-top:32px}
.hero-panel{position:relative;min-height:clamp(240px,36vw,520px);border-radius:28px;background:var(--green);overflow:hidden;display:flex;align-items:flex-end;padding:clamp(24px,3.4vw,48px);color:var(--ground)}
.hero-panel svg{position:absolute;inset:0;width:100%;height:100%}
.hero-panel p{position:relative;font-family:var(--mincho);font-size:clamp(20px,2.1vw,30px);font-weight:600;line-height:1.5}
@media (max-width:900px){.hero{grid-template-columns:1fr;gap:32px}}

/* stats */
.stats{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--ink);border-bottom:1px solid var(--ink);margin-bottom:clamp(56px,8vw,120px)}
.stats div{display:flex;flex-direction:column;gap:6px;padding:32px;border-right:1px solid var(--line)}
.stats div:last-child{border-right:none}
.stats span{font-size:13px;color:var(--muted);letter-spacing:.12em}
.stats b{font-family:var(--mincho);font-size:clamp(28px,3vw,44px);font-weight:800;line-height:1.3}
.stats b small{font-size:.42em;margin-left:4px}
.stats b.sm{font-size:clamp(16px,2vw,28px);line-height:1.6}
@media (max-width:760px){.stats{grid-template-columns:1fr 1fr}.stats div{padding:20px 16px}.stats div:nth-child(2){border-right:none}.stats div:nth-child(-n+2){border-bottom:1px solid var(--line)}}

/* generic sections */
.sec-pad{padding-block:clamp(56px,8vw,120px)}
.band{background:var(--band)}
.band-green{background:var(--green);color:var(--ground)}
.band-green .eyebrow{color:#F2B8A2}
.split{display:grid;grid-template-columns:1fr 1fr;gap:clamp(32px,6vw,96px)}
.side{display:grid;grid-template-columns:minmax(220px,340px) 1fr;gap:clamp(24px,5vw,64px)}
@media (max-width:900px){.split,.side{grid-template-columns:1fr}}
.stack>p+p{margin-top:22px}
.stack p{color:var(--text);line-height:2.1}

/* news */
.news-list{list-style:none;margin:0;padding:0;border-top:1px solid var(--ink)}
.news-list li{display:grid;grid-template-columns:120px 130px 1fr;gap:24px;align-items:center;padding:24px 0;border-bottom:1px solid var(--line)}
.news-list time{color:var(--muted)}
.tag{justify-self:start;padding:4px 14px;border-radius:999px;background:var(--band);font-size:13px;font-weight:700}
.news-list.simple li{grid-template-columns:120px 1fr}
@media (max-width:700px){.news-list li,.news-list.simple li{grid-template-columns:1fr;gap:6px}}

/* products (top) */
.pgrid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:48px}
.pcard{display:flex;flex-direction:column;gap:12px;padding:28px;background:#fff;border:1px solid var(--line);border-radius:20px;text-decoration:none;color:var(--ink)}
.pcard:hover{border-color:var(--ink);color:var(--ink)}
.pcard img{width:120px;height:120px;object-fit:contain;align-self:center}
.pcard b{font-size:19px}
.pcard span{font-size:14px;color:var(--muted);line-height:1.8}
@media (max-width:1100px){.pgrid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:560px){.pgrid{grid-template-columns:1fr}.pcard{flex-direction:row;align-items:center}.pcard img{width:80px;height:80px}}

/* area */
.chips{display:flex;flex-wrap:wrap;gap:12px;list-style:none;margin:0;padding:0}
.chips li{padding:10px 22px;border-radius:999px;border:1px solid var(--ground)}
.chips li:first-child{background:var(--ground);color:var(--ink);font-weight:700}
.cust{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:1fr 1fr;gap:0 32px}
.cust li{padding:14px 0;border-bottom:1px solid rgba(246,243,236,.25)}
.subhead{display:block;font-size:14px;font-weight:700;letter-spacing:.12em;color:var(--pale);margin:36px 0 14px}
@media (max-width:560px){.cust{grid-template-columns:1fr}}

/* history */
.timeline{list-style:none;margin:0;padding:0}
.timeline li{display:grid;grid-template-columns:130px 1fr;gap:28px;padding:20px 0;border-bottom:1px solid var(--line)}
.timeline b{font-family:var(--mincho);font-size:22px;color:var(--green)}
@media (max-width:560px){.timeline li{grid-template-columns:1fr;gap:4px}}

/* definition table */
.dl{display:grid;grid-template-columns:180px 1fr;margin:0;border-top:1px solid var(--ink)}
.dl dt,.dl dd{margin:0;padding:18px 0;border-bottom:1px solid var(--line2)}
.dl dt{color:var(--muted);font-weight:700}
@media (max-width:560px){.dl{grid-template-columns:1fr}.dl dt{border-bottom:none;padding-bottom:0}.dl dd{padding-top:4px}}

/* map */
.map{border-radius:24px;overflow:hidden;background:#E4E9E2;display:flex;flex-direction:column}
.map iframe{display:block;width:100%;height:clamp(280px,34vw,440px);border:0}
.map .map-foot{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;padding:16px 20px;background:#fff}

/* contact cards */
.ccards{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:40px}
.ccard{display:flex;flex-direction:column;gap:8px;padding:32px 24px;border-radius:20px;background:#fff;border:1px solid var(--line);text-decoration:none;color:var(--ink)}
.ccard small{font-size:14px;font-weight:700;color:var(--muted)}
.ccard b{font-family:var(--mincho);font-size:clamp(22px,2vw,28px)}
.ccard.tel{background:var(--accent);color:#fff;border-color:var(--accent)}
.ccard.tel small{color:#fff}
.ccard .mail{font-size:17px;font-weight:700;font-family:var(--gothic);word-break:break-all}
@media (max-width:860px){.ccards{grid-template-columns:1fr}}
.center{text-align:center}

/* page head */
.page-head{background:var(--green);color:var(--ground);padding-block:clamp(40px,6vw,72px) clamp(44px,6vw,80px)}
.page-head .eyebrow{color:#F2B8A2;margin-top:18px}
.page-head h1{font-family:var(--mincho);font-weight:800;font-size:clamp(32px,4vw,52px)}
.page-head p{margin-top:16px;max-width:44em;color:var(--pale);line-height:2}
.crumb{display:flex;gap:10px;font-size:13px;color:var(--pale);list-style:none;margin:0;padding:0}
.crumb a{color:var(--pale)}

/* products page */
.cat-nav{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:40px}
.cat-nav a{display:inline-flex;align-items:center;min-height:44px;padding:0 20px;border-radius:999px;border:1px solid var(--ink);color:var(--ink);text-decoration:none;font-size:14px}
.cat-nav a:hover{background:var(--ink);color:var(--ground)}
.pitem{display:grid;grid-template-columns:300px 1fr;gap:clamp(24px,4vw,48px);padding:clamp(24px,3vw,40px);background:#fff;border:1px solid var(--line);border-radius:24px;margin-bottom:24px;scroll-margin-top:100px}
.pitem figure{margin:0;display:flex;align-items:center;justify-content:center;height:220px;border-radius:20px;border:1px solid var(--band)}
.pitem figure img{width:200px;height:200px;object-fit:contain}
.pitem h2{font-size:clamp(22px,2.2vw,28px);margin:6px 0 12px}
.pitem p{color:var(--text);line-height:2}
.pitem .maker{margin-top:16px;padding-top:12px;border-top:1px solid var(--line);font-size:14px;color:var(--muted)}
.pitem .no{font-family:var(--mincho);font-weight:800;color:var(--accent)}
@media (max-width:760px){.pitem{grid-template-columns:1fr}.pitem figure{height:180px}.pitem figure img{width:160px;height:160px}}

/* cta */
.cta{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px;margin-block:0 clamp(56px,8vw,120px);padding:clamp(28px,4vw,48px) clamp(24px,4vw,56px);border-radius:24px;background:var(--band)}
.cta b{font-family:var(--mincho);font-size:clamp(20px,2vw,26px)}
.cta .actions{display:flex;flex-wrap:wrap;gap:12px}

/* form */
.form{display:flex;flex-direction:column;gap:24px;padding:clamp(24px,4vw,48px);border-radius:24px;background:var(--ground)}
.form label{font-weight:700;font-size:15px}
.req,.opt{margin-left:8px;padding:2px 8px;border-radius:4px;font-size:11px}
.req{background:var(--accent);color:#fff} .opt{background:var(--line);color:var(--ink)}
.form input[type=text],.form input[type=email],.form input[type=tel],.form textarea{width:100%;margin-top:8px;min-height:52px;padding:12px 16px;border-radius:12px;border:1px solid var(--line2);background:#fff;font:inherit}
.form textarea{min-height:160px;resize:vertical}
.agree{display:flex;align-items:center;gap:10px;font-weight:400!important}
.agree input{width:22px;height:22px}
.form-note{font-size:13px;color:var(--muted)}
.form select{width:100%;margin-top:8px;min-height:52px;padding:12px 16px;border-radius:12px;border:1px solid var(--line2);background:#fff;font:inherit}
.notice{padding:14px 16px;border-radius:12px;background:#F7E7E1;border:1px solid #E0B5A6;color:#7A2E15;font-size:14px;line-height:1.8}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.form-err{color:#A3341A;font-weight:700;font-size:14px;min-height:1em}

/* legal text */
.legal{max-width:880px}
.legal section{padding:26px 0;border-bottom:1px solid var(--line)}
.legal h2{font-size:20px;margin-bottom:10px}
.legal p{color:var(--text);line-height:2.1}

/* footer */
.site-footer{background:var(--ink);color:var(--pale);padding-block:64px 40px}
.site-footer .top{display:flex;flex-wrap:wrap;justify-content:space-between;gap:32px}
.site-footer b{font-family:var(--mincho);font-size:22px;color:var(--ground)}
.site-footer p{font-size:14px;line-height:1.9;margin-top:10px}
.fnav{display:grid;grid-template-columns:repeat(2,auto);gap:10px 48px;font-size:14px}
.fnav a{color:var(--pale);text-decoration:none}
.fnav a:hover{color:#fff;text-decoration:underline}
.copy{display:block;margin-top:40px;font-size:12px;color:#9FB0A8}
@media (max-width:560px){.fnav{grid-template-columns:1fr}}


/* スマートスクールへのリンク（右側） */
.sidelinks{position:fixed;right:0;top:50%;transform:translateY(-50%);z-index:40;display:flex;flex-direction:column;gap:10px}
.sidelink{display:flex;flex-direction:column;align-items:center;gap:6px;width:150px;padding:14px 12px;border:1px solid var(--line);border-right:none;border-radius:14px 0 0 14px;background:rgba(255,255,255,.96);text-decoration:none;color:var(--ink);box-shadow:0 2px 10px rgba(30,42,37,.08)}
.sidelink:hover{background:#fff;border-color:var(--ink);color:var(--ink)}
.sidelink img{width:118px;height:auto}
.sidelink span{font-size:12px;font-weight:700;color:var(--muted)}
.sl-title{display:block;font-size:14px;font-weight:700;line-height:1.5;text-align:center;color:var(--ink)}
@media (max-width:1399px){
  .sidelinks{position:static;transform:none;flex-direction:row;justify-content:center;gap:12px;margin:0 var(--pad) clamp(40px,6vw,80px)}
  .sidelink{width:auto;min-width:150px;border-right:1px solid var(--line);border-radius:14px}
}
@media (max-width:420px){.sidelinks{flex-direction:column}.sidelink{width:100%}}