/*
Theme Name: 3S Corporate
Theme URI: https://takumahirokawa.com/
Author: 3S株式会社
Description: 3S株式会社 コーポレートサイト用テーマ（白地×墨色・罫線と余白のシンプル構成）
Version: 1.0.0
Requires at least: 6.0
Requires PHP: 7.4
Text Domain: threes
*/
:root{
  --ink:#1a1a1a;
  --text:#333;
  --muted:#7a7a7a;
  --line:#e6e6e6;
  --bg:#ffffff;
  --bg-soft:#f7f7f5;
  --accent:#b5502a;
  --max:1080px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:"Noto Sans JP","Hiragino Sans","Hiragino Kaku Gothic ProN","Yu Gothic",sans-serif;color:var(--text);background:var(--bg);line-height:1.9;font-size:15.5px;letter-spacing:.02em;-webkit-font-smoothing:antialiased;font-weight:400}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.wrap{max-width:var(--max);margin:0 auto;padding:0 28px}
h1,h2,h3{font-family:"Noto Serif JP","Hiragino Mincho ProN","Yu Mincho",serif;font-weight:600;line-height:1.4;color:var(--ink);margin:0;letter-spacing:.03em}
h2{font-size:clamp(24px,3vw,32px)}
h3{font-size:18px}
p{margin:0 0 1em}
.eyebrow{display:block;font-family:"Noto Sans JP",sans-serif;font-size:11px;letter-spacing:.26em;color:var(--muted);font-weight:500;margin-bottom:18px;text-transform:uppercase}
.lead{font-size:16px}
.btn{display:inline-block;padding:14px 32px;font-weight:500;font-size:14px;letter-spacing:.08em;transition:.2s;border:1px solid var(--ink);background:var(--ink);color:#fff;border-radius:2px}
.btn:hover{background:#000}
.btn-primary{background:var(--ink);color:#fff}
.btn-ghost{background:transparent;color:var(--ink)}
.btn-ghost:hover{background:var(--ink);color:#fff}
.btn-white{background:#fff;color:var(--ink);border-color:#fff}
.btn-white:hover{background:#eee}
section{padding:120px 0}
section.soft{background:var(--bg-soft)}
section.dark{background:var(--bg)}
.sec-head{margin-bottom:56px}
.sec-head p{max-width:680px;margin-top:16px}
.grid{display:grid;gap:40px 48px}
.g2{grid-template-columns:repeat(2,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}
.g5{grid-template-columns:repeat(5,1fr)}
@media(max-width:900px){.g3,.g4,.g5{grid-template-columns:repeat(2,1fr)}}
@media(max-width:600px){.g2,.g3,.g4,.g5{grid-template-columns:1fr}section{padding:80px 0}}
.card{background:transparent;border:0;border-top:1px solid var(--ink);padding:24px 0 0}
.card h3{margin-bottom:12px;font-size:18px}
.card p{margin:0;font-size:14.5px;color:var(--text)}
.num{font-family:"Noto Serif JP",serif;font-size:12px;letter-spacing:.2em;color:var(--muted);margin-bottom:14px}
.ph{background:#ecece9;display:flex;align-items:center;justify-content:center;color:#9a9a96;font-size:12px;letter-spacing:.1em;min-height:220px}

/* header */
header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);backdrop-filter:blur(8px)}
.nav{display:flex;align-items:center;justify-content:space-between;height:76px}
.logo{font-family:"Noto Serif JP",serif;font-weight:600;font-size:22px;letter-spacing:.08em;color:var(--ink)}
.logo small{display:block;font-family:"Noto Sans JP",sans-serif;font-size:9px;letter-spacing:.24em;color:var(--muted);font-weight:500;margin-top:-4px}
.menu{display:flex;gap:32px;font-size:13.5px;font-weight:500;letter-spacing:.04em}
.menu a{padding-bottom:2px;border-bottom:1px solid transparent}
.menu a:hover{border-color:var(--ink)}
.nav .btn{padding:10px 22px;font-size:13px}
@media(max-width:900px){.menu{display:none}}

/* hero */
.hero{position:relative;background:var(--bg);color:var(--ink);padding:0;overflow:hidden;border-bottom:1px solid var(--line)}
.hero .bg{display:none}
.hero .wrap{position:relative;padding-top:140px;padding-bottom:140px;display:grid;grid-template-columns:1.3fr .7fr;gap:64px;align-items:center}
@media(max-width:900px){.hero .wrap{grid-template-columns:1fr;padding-top:88px;padding-bottom:88px}}
.hero h1{font-size:clamp(30px,4.2vw,50px);color:var(--ink);letter-spacing:.03em;margin-bottom:32px;line-height:1.5}
.hero h1 .nw{white-space:nowrap}
.hero .wrap>*{min-width:0}
@media(max-width:600px){.hero h1{font-size:25px;letter-spacing:.01em}.hero .lead br{display:none}}
.hero h1 em{font-style:normal;color:var(--ink);border-bottom:2px solid var(--accent);padding-bottom:4px}
.hero .lead{font-size:clamp(15px,1.4vw,17px);color:var(--text);max-width:560px;margin-bottom:44px}
.hero .actions{display:flex;gap:14px;flex-wrap:wrap}
.hero .ph-note{display:none}
.hero .photo{background:#ecece9;aspect-ratio:4/5;display:flex;align-items:center;justify-content:center;color:#9a9a96;font-size:12px;letter-spacing:.1em}
@media(max-width:900px){.hero .photo{aspect-ratio:16/9}}

/* pain */
.pain .card{border-top:1px solid var(--line)}
.pain .card h3{font-size:17px}
.pain .close{margin-top:64px;font-size:18px;font-family:"Noto Serif JP",serif;color:var(--ink);max-width:760px;line-height:1.9}

/* services */
.svc{display:grid;grid-template-columns:1fr;gap:0;border-top:1px solid var(--ink)}
.svc .card{display:grid;grid-template-columns:120px 1fr 1.4fr auto;gap:32px;align-items:baseline;padding:40px 0;border-top:0;border-bottom:1px solid var(--line);transition:.2s}
.svc .card:hover{background:var(--bg-soft)}
@media(max-width:900px){.svc .card{grid-template-columns:1fr;gap:10px;padding:32px 0}}
.svc .card.big{background:transparent;color:inherit}
.svc .card h3{font-size:24px;margin:0}
.svc .card.big h3{color:var(--ink);font-size:24px}
.svc .card p{margin:0}
.svc .card.big p{color:var(--text)}
.svc .card p.sub{font-family:"Noto Serif JP",serif;font-size:16px;color:var(--ink);margin-bottom:6px}
.svc .card.big p.sub{color:var(--ink)}
.svc .num{margin:0;font-size:13px}
.svc .card.big .num{color:var(--muted)}
.svc .more{font-size:13px;letter-spacing:.1em;color:var(--ink);white-space:nowrap}
.svc .card.big .more{color:var(--ink)}
.svc .txt{display:flex;flex-direction:column}

/* reasons */
.reason .card{border-top:1px solid var(--line);padding-top:24px}
.reason ul{margin:10px 0;padding-left:0;list-style:none}
.reason li{font-size:14.5px;padding:2px 0}
.reason li b{color:var(--ink);margin-right:8px;font-weight:500}

/* stats */
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:0;margin-bottom:72px;border-top:1px solid var(--ink);border-bottom:1px solid var(--ink)}
@media(max-width:700px){.stats{grid-template-columns:1fr}}
.stat{padding:40px 24px;border-right:1px solid var(--line)}
.stat:last-child{border:none}
.stat .v{font-family:"Noto Serif JP",serif;font-size:clamp(34px,3.8vw,48px);color:var(--ink);font-weight:600;line-height:1.2}
.stat .v small{font-size:.42em;margin-left:6px;font-weight:500}
.stat .l{font-size:12.5px;color:var(--muted);margin-top:10px;letter-spacing:.06em}
.logos{display:flex;gap:40px;flex-wrap:wrap;justify-content:center;margin-bottom:72px}
.logos span{font-family:"Noto Serif JP",serif;font-size:14px;letter-spacing:.14em;color:var(--muted)}
.case{background:transparent;border:0;border-top:1px solid var(--line);padding:24px 0 0}
.case .tag{font-size:11px;letter-spacing:.18em;color:var(--muted)}
.case h3{font-size:16px;margin:12px 0 4px;color:var(--ink);font-family:"Noto Sans JP",sans-serif;font-weight:500}
.case .r{font-family:"Noto Serif JP",serif;font-size:26px;color:var(--ink);margin-bottom:12px}
.case p{font-size:14px;color:var(--text);margin:0}

/* ceo */
.ceo{display:grid;grid-template-columns:.85fr 1.15fr;gap:80px;align-items:center}
@media(max-width:900px){.ceo{grid-template-columns:1fr;gap:40px}}
.ceo .ph{min-height:520px}
.ceo h2{margin-bottom:28px}
.ceo p{font-size:15.5px}
.ceo .sig{margin-top:32px;font-size:13px;color:var(--muted)}
.ceo .sig b{display:block;color:var(--ink);font-size:15px;margin-bottom:8px;font-weight:500}
.ceo .links{display:flex;gap:20px;margin-top:10px;font-size:13px}
.ceo .links a{border-bottom:1px solid var(--ink);padding-bottom:1px}

/* flow */
.flow{display:grid;grid-template-columns:repeat(5,1fr);gap:0;counter-reset:s;border-top:1px solid var(--ink)}
@media(max-width:900px){.flow{grid-template-columns:1fr}}
.flow .st{background:transparent;border:0;border-right:1px solid var(--line);padding:32px 24px 8px 0;margin-right:24px;position:relative}
.flow .st:last-child{border:0}
@media(max-width:900px){.flow .st{border-right:0;border-bottom:1px solid var(--line);margin-right:0;padding:24px 0}}
.flow .st:before{counter-increment:s;content:"0" counter(s);font-family:"Noto Serif JP",serif;color:var(--muted);font-size:13px;letter-spacing:.2em;display:block;margin-bottom:12px}
.flow .st h3{font-size:16px;margin-bottom:8px}
.flow .st p{font-size:13.5px;color:var(--muted);margin:0}

/* column */
.col .card{padding:0;border:0}
.col .ph{min-height:180px}
.col .body{padding:18px 0 0}
.col .body .cat{font-size:11px;color:var(--muted);letter-spacing:.18em}
.col .body h3{font-size:16px;margin:8px 0;font-family:"Noto Sans JP",sans-serif;font-weight:500;line-height:1.6}
.col .body time{font-size:12px;color:var(--muted)}

/* cta */
.cta{text-align:center;background:var(--ink);color:#fff;padding:120px 0}
.cta h2{color:#fff;margin-bottom:24px}
.cta p{color:#c9c9c9;max-width:560px;margin:0 auto 40px;font-size:15px}

/* footer */
footer{background:var(--bg);color:var(--muted);padding:64px 0 32px;font-size:13px;border-top:1px solid var(--line)}
footer .top{display:grid;grid-template-columns:1.2fr 2fr;gap:40px;margin-bottom:48px}
@media(max-width:800px){footer .top{grid-template-columns:1fr}}
footer .logo{color:var(--ink)}
footer .cols{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
footer .cols b{display:block;color:var(--ink);margin-bottom:12px;font-size:12px;letter-spacing:.14em;font-weight:500}
footer .cols a{display:block;padding:3px 0}
footer .cols a:hover{color:var(--ink)}
footer .bottom{border-top:1px solid var(--line);padding-top:20px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;font-size:12px}

/* subpage */
.page-head{background:var(--bg);padding:104px 0 88px;border-bottom:1px solid var(--line)}
.page-head .crumb{font-size:12px;color:var(--muted);margin-bottom:28px;letter-spacing:.06em}
.page-head h1{font-size:clamp(30px,4vw,46px);margin-bottom:24px}
.page-head .lead{max-width:720px;margin-bottom:36px}
.checks{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(2,1fr);gap:0 48px;border-top:1px solid var(--ink)}
@media(max-width:700px){.checks{grid-template-columns:1fr}}
.checks li{background:transparent;border:0;border-bottom:1px solid var(--line);padding:18px 0 18px 26px;position:relative;font-size:15px}
.checks li:before{content:"";position:absolute;left:0;top:32px;width:12px;height:1px;background:var(--accent)}
.checks li:after{display:none}
.note{margin-top:40px;padding:0 0 0 24px;background:transparent;border-left:1px solid var(--accent);font-size:14.5px;color:var(--text);max-width:760px}
table.cmp{width:100%;border-collapse:collapse;font-size:14.5px;background:transparent}
table.cmp th,table.cmp td{border:0;border-bottom:1px solid var(--line);padding:18px 20px;text-align:left;vertical-align:top}
table.cmp th{background:transparent;font-weight:500;width:22%;color:var(--muted);font-size:13px;letter-spacing:.06em}
table.cmp thead th{background:transparent;color:var(--ink);text-align:left;width:auto;font-family:"Noto Serif JP",serif;font-size:17px;border-bottom:1px solid var(--ink)}
table.cmp thead th.hl{color:var(--ink)}
.faq{padding-top:104px}
.faq .q{border-bottom:1px solid var(--line);padding:26px 0}
.faq .q b{display:block;font-size:16.5px;color:var(--ink);margin-bottom:10px;font-weight:500}
.faq .q b:before{content:"Q";color:var(--muted);margin-right:14px;font-family:"Noto Serif JP",serif;font-size:13px;letter-spacing:.1em}
.faq .q p{margin:0;padding-left:30px;font-size:14.5px}
.faq .q p:before{content:"A";color:var(--accent);margin-left:-30px;margin-right:14px;font-family:"Noto Serif JP",serif;font-size:13px;letter-spacing:.1em}
.tbl-wrap{overflow-x:auto}

/* portrait */
.ph.portrait{min-height:0!important;aspect-ratio:4/5;background:#1e2a3d;overflow:hidden;display:block}
.ph.portrait img{width:100%;height:100%;object-fit:cover;object-position:50% 20%}
.ph.portrait.sm{max-width:360px}

/* ===== WordPress 追加分 ===== */
.site-header{position:sticky;top:var(--wp-admin--admin-bar--height,0);z-index:50;background:rgba(255,255,255,.96);backdrop-filter:blur(8px)}
.nav-toggle,.nav-burger,.menu .menu-cta{display:none}
@media(max-width:900px){
  .nav-btn{display:none}
  .nav-burger{display:flex;flex-direction:column;gap:6px;cursor:pointer;padding:10px;margin-right:-10px}
  .nav-burger span{display:block;width:24px;height:1px;background:var(--ink);transition:.2s}
  .menu{position:absolute;top:76px;left:0;right:0;background:#fff;flex-direction:column;gap:0;padding:8px 28px 24px;border-bottom:1px solid var(--line);display:none}
  .menu a{padding:14px 0;border-bottom:1px solid var(--line);font-size:15px}
  .menu .menu-cta{display:block;margin-top:16px;border:1px solid var(--ink);background:var(--ink);color:#fff;text-align:center}
  .nav-toggle:checked ~ .menu{display:flex}
  .nav-toggle:checked + .nav-burger span:first-child{transform:translateY(3.5px) rotate(45deg)}
  .nav-toggle:checked + .nav-burger span:last-child{transform:translateY(-3.5px) rotate(-45deg)}
}
.hero .photo img,.ph img{width:100%;height:100%;object-fit:cover}
.post-card{display:block}
.post-card .ph{min-height:180px}
.post-card:hover h3{text-decoration:underline;text-underline-offset:4px}
.pager{margin-top:56px;text-align:center}
.pager .page-numbers{display:inline-block;padding:6px 12px;margin:0 2px;border:1px solid var(--line)}
.pager .current{background:var(--ink);color:#fff;border-color:var(--ink)}
/* 記事 */
.article{max-width:760px}
.article-head .crumb a{border-bottom:1px solid var(--line)}
.post-date{display:block;color:var(--muted);font-size:13px;margin-top:8px}
.article-thumb{margin-bottom:40px}
.article h2{font-size:24px;margin:56px 0 20px;padding-top:24px;border-top:1px solid var(--ink)}
.article h3{font-size:19px;margin:40px 0 14px}
.article p{margin:0 0 1.4em}
.article ul,.article ol{padding-left:1.4em;margin:0 0 1.4em}
.article img{height:auto}
.article a{border-bottom:1px solid var(--accent)}
.article-back{margin-top:64px}
.article-back a{border:1px solid var(--ink)}
/* Contact Form 7 */
.form label{display:block;font-size:13px;color:var(--muted);letter-spacing:.06em;margin:28px 0 8px}
.form label b{color:var(--accent);font-weight:500;margin-left:6px;font-size:11px}
.form input[type=text],.form input[type=email],.form input[type=tel],.form select,.form textarea{width:100%;border:1px solid var(--line);background:#fff;padding:14px 16px;font-size:15px;font-family:inherit;border-radius:2px}
.form textarea{min-height:160px}
.form .wpcf7-acceptance{display:block;margin-top:28px;font-size:14px}
.form .wpcf7-acceptance input{margin-right:8px}
.form .wpcf7-acceptance a{border-bottom:1px solid var(--ink)}
.form .submit{margin-top:40px}
.form input[type=submit]{cursor:pointer;font-family:inherit}
.wpcf7-not-valid-tip{color:var(--accent);font-size:12px;margin-top:6px}
.wpcf7 form .wpcf7-response-output{margin:32px 0 0;padding:14px 18px;border:1px solid var(--line);font-size:14px}
.wpcf7-spinner{margin-left:12px}
/* 他プラグインのインライン a:link 指定に負けないよう、リンク色を明示 */
body a:link,body a:visited{color:inherit}
body a.btn:link,body a.btn:visited,body a.btn-primary:link,body a.btn-primary:visited{color:#fff}
body a.btn-ghost:link,body a.btn-ghost:visited,body a.btn-white:link,body a.btn-white:visited{color:var(--ink)}
body a.btn-ghost:hover{color:#fff}
body .menu a.menu-cta:link,body .menu a.menu-cta:visited{color:#fff}