/* case-system.css - このページ固有のスタイル */
:root{
    --navy:#0a2540; --navy-deep:#06182b;
    --blue:#1a6dc4; --blue-bright:#2f8fe0; --blue-pale:#eaf3fb; --sky:#d6e9f8;
    --indigo:#3f51b5; --indigo-pale:#eaecf7;
    --ink:#24333f; --gray:#5c6b7a; --line:#e6edf3; --bg:#f6fafd;
    --serif:-apple-system,BlinkMacSystemFont,'Segoe UI','Hiragino Kaku Gothic ProN','Hiragino Sans','Yu Gothic UI','Yu Gothic','Meiryo',sans-serif;
    --sans:-apple-system,BlinkMacSystemFont,'Segoe UI','Hiragino Kaku Gothic ProN','Hiragino Sans','Yu Gothic UI','Yu Gothic','Meiryo',sans-serif;
    --latin:-apple-system,BlinkMacSystemFont,'Segoe UI','Hiragino Kaku Gothic ProN','Hiragino Sans','Yu Gothic UI','Yu Gothic','Meiryo',sans-serif;
  }
.wrap{max-width:1000px;margin:0 auto;padding:0 24px}
.narrow{max-width:820px}
.reveal{opacity:0;transform:translateY(28px);transition:opacity .8s, transform .8s}
/* === site header (現行サイト準拠) === */
  .site-head{background:#fff;border-bottom:1px solid #eef1f4;position:sticky;top:0;z-index:60}
.sh-cta{display:flex;align-items:center;gap:8px;background:#e8654f;color:#fff;height:66px;padding:0 22px;font-size:16px;font-weight:700;text-decoration:none;transition:background .2s}
.hero{background:linear-gradient(120deg,#0a2540,#143a63 60%,#1a6dc4);color:#fff;padding:70px 0 64px;position:relative;overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;background:radial-gradient(700px 420px at 85% 15%,rgba(63,81,181,.3),transparent 60%)}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
@media(max-width:820px){.hero-inner{grid-template-columns:1fr;gap:32px}}
.hero .cat{display:inline-block;font-family:var(--latin);font-weight:700;font-size:13px;letter-spacing:.12em;color:var(--sky);border:1px solid rgba(255,255,255,.28);padding:5px 14px;border-radius:99px;margin-bottom:20px}
.hero h1{font-family:var(--serif);font-weight:800;font-size:48px;line-height:1.3;margin-bottom:18px}
.hero h1 .hl{display:block;white-space:nowrap}
.hero h1 .i{color:#9fa8e8}
@media(max-width:520px){.hero h1 .hl{white-space:normal}}
.hero .lead{font-size:16px;color:rgba(255,255,255,.85);line-height:2}
.hero .industry{margin-top:24px;display:flex;gap:10px;flex-wrap:wrap}
.hero .industry span{font-size:13.5px;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.18);padding:6px 14px;border-radius:99px}
/* hero system icons cluster */
  .syscluster{background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.12);border-radius:18px;padding:26px;display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.syscluster .si{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.1);border-radius:12px;padding:18px 12px;text-align:center}
.syscluster .si svg{display:block;margin:0 auto 10px}
.syscluster .si span{font-size:12.5px;color:rgba(255,255,255,.82);line-height:1.5;display:block}
section{padding:72px 0}
.step-label{display:inline-flex;align-items:center;gap:10px;font-family:var(--latin);font-weight:700;font-size:14px;letter-spacing:.1em;color:var(--blue);margin-bottom:14px}
.step-label .n{width:30px;height:30px;border-radius:50%;background:var(--blue);color:#fff;display:flex;align-items:center;justify-content:center;font-size:15px}
.sec-title{font-family:var(--serif);font-weight:800;font-size:clamp(22px,3.2vw,30px);line-height:1.5;color:var(--navy);margin-bottom:20px}
article p{margin:14px 0;color:#33424f}
.ov-table{border:1px solid var(--line);border-radius:12px;overflow:hidden;margin-top:8px}
.ov-table div{display:grid;grid-template-columns:170px 1fr;border-top:1px solid var(--line)}
.ov-table div:first-child{border-top:0}
.ov-table dt{background:var(--blue-pale);color:var(--navy);font-weight:700;padding:14px 18px;font-size:15.5px}
.ov-table dd{padding:14px 18px;font-size:16px;color:#33424f}
@media(max-width:560px){.ov-table div{grid-template-columns:1fr}.ov-table dt{border-bottom:1px solid var(--line)}}
/* domain list (扱う業務領域) */
  .domains{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:30px}
@media(max-width:760px){.domains{grid-template-columns:1fr 1fr}}
@media(max-width:480px){.domains{grid-template-columns:1fr}}
.dom{background:#fff;border:1px solid var(--line);border-radius:12px;padding:22px 20px;transition:.3s}
.dom:hover{box-shadow:0 12px 30px rgba(10,37,64,.09);transform:translateY(-4px)}
.dom .dic{width:44px;height:44px;border-radius:11px;background:var(--indigo-pale);display:flex;align-items:center;justify-content:center;margin-bottom:12px}
.dom h3{font-size:15.5px;font-weight:700;color:var(--navy);margin-bottom:5px}
.dom p{font-size:14px;color:var(--gray);margin:0;line-height:1.7}
.goals{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;margin-top:30px}
@media(max-width:680px){.goals{grid-template-columns:1fr}}
.goal{background:#fff;border:1px solid var(--line);border-radius:12px;padding:26px 24px;transition:.3s}
.goal:hover{box-shadow:0 12px 30px rgba(10,37,64,.09);transform:translateY(-4px)}
.goal .gic{width:48px;height:48px;border-radius:12px;background:var(--indigo-pale);display:flex;align-items:center;justify-content:center;margin-bottom:14px}
.goal h3{font-family:var(--serif);font-size:18px;font-weight:700;color:var(--navy);margin-bottom:8px}
.goal p{font-size:15px;color:var(--gray);margin:0}
.measure-card{background:#fff;border:1px solid var(--line);border-radius:16px;overflow:hidden;margin-top:30px;box-shadow:0 10px 30px rgba(10,37,64,.06)}
.measure-head{background:var(--navy);color:#fff;padding:22px 30px;display:flex;align-items:center;gap:14px}
.measure-head .tag{font-family:var(--latin);font-weight:700;font-size:12px;letter-spacing:.1em;background:var(--indigo);padding:5px 12px;border-radius:99px}
.measure-head h3{font-family:var(--serif);font-size:18px;font-weight:700;line-height:1.5}
.measure-body{padding:30px}
.measure-body p{margin:0 0 20px}
/* before/after cost */
  .ba{display:grid;grid-template-columns:1fr auto 1fr;gap:18px;align-items:center;margin:8px 0 6px}
@media(max-width:600px){.ba{grid-template-columns:1fr;gap:14px}}
.ba-box{border-radius:12px;padding:22px 20px;text-align:center}
.ba-before{background:#f3f5f7;border:1px solid var(--line)}
.ba-after{background:var(--indigo-pale);border:1px solid #c9cff0}
.ba-box .lab{font-size:13px;font-weight:700;letter-spacing:.04em;margin-bottom:12px;display:inline-block;padding:3px 12px;border-radius:99px}
.ba-before .lab{background:#dde3e9;color:#5c6b7a}
.ba-after .lab{background:var(--indigo);color:#fff}
.ba-box ul{list-style:none;text-align:left;font-size:14px;color:#46535f;line-height:1.6}
.ba-box ul li{padding:5px 0 5px 22px;position:relative}
.ba-before ul li::before{content:"\00D7";position:absolute;left:4px;color:#b0392f;font-weight:700}
.ba-after ul li::before{content:"\2713";position:absolute;left:2px;color:var(--indigo);font-weight:700}
.ba-arrow{font-size:26px;color:var(--indigo);text-align:center}
@media(max-width:600px){.ba-arrow{transform:rotate(90deg)}}
.more-box{margin-top:28px;background:var(--indigo-pale);border-radius:14px;padding:28px 30px;display:flex;align-items:center;gap:24px;flex-wrap:wrap}
.more-box .mtxt{flex:1;min-width:260px}
.more-box h4{font-family:var(--serif);font-size:18px;color:var(--navy);font-weight:700;margin-bottom:6px}
.more-box p{font-size:15px;color:#33424f;margin:0}
.more-box .locklist{margin-top:12px;display:flex;flex-direction:column;gap:7px}
.more-box .locklist span{font-size:14.5px;color:var(--gray);display:flex;align-items:center;gap:8px}
.more-box a{flex-shrink:0;display:inline-block;background:var(--indigo);color:#fff;font-weight:700;text-decoration:none;padding:15px 30px;border-radius:99px;transition:.3s;white-space:nowrap}
.more-box a:hover{background:#33429a;transform:translateY(-2px)}
.result-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:32px}
@media(max-width:760px){.result-grid{grid-template-columns:1fr}}
.rstat{background:linear-gradient(160deg,var(--navy),var(--navy-deep));color:#fff;border-radius:14px;padding:30px 24px;text-align:center}
.rstat .rn{font-family:var(--latin);font-weight:700;font-size:38px;line-height:1.15;background:linear-gradient(90deg,#fff,#9fa8e8);-webkit-background-clip:text;background-clip:text;color:transparent}
.rstat .rn small{font-size:48%}
.rstat .rl{font-size:14.5px;color:rgba(255,255,255,.8);margin-top:12px}
.result-note{font-size:13.5px;color:var(--gray);margin-top:18px;text-align:center}
.voice{margin-top:34px;background:#fff;border:1px solid var(--line);border-left:4px solid var(--indigo);border-radius:0 10px 10px 0;padding:24px 28px}
.voice .q{font-family:var(--serif);font-size:17px;color:var(--navy);line-height:1.8;margin-bottom:10px}
.voice .w{font-size:14px;color:var(--gray)}
.cta{background:linear-gradient(160deg,var(--indigo),var(--navy));color:#fff;text-align:center;position:relative;overflow:hidden}
.cta::before{content:"";position:absolute;inset:0;background:radial-gradient(600px 320px at 50% 0%,rgba(255,255,255,.16),transparent 60%)}
.cta-inner{position:relative;z-index:2}
.cta h2{font-family:var(--serif);font-weight:800;font-size:clamp(23px,3.6vw,36px);line-height:1.5;margin-bottom:16px}
.cta p{color:rgba(255,255,255,.9);font-size:16px;max-width:600px;margin:0 auto 32px}
.cta-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.cta .btn{display:inline-block;text-decoration:none;font-weight:700;font-size:16px;padding:16px 36px;border-radius:99px;transition:.3s}
.cta .btn-white{background:#fff;color:var(--navy)}
.cta .btn-white:hover{transform:translateY(-3px);box-shadow:0 14px 30px rgba(0,0,0,.25)}
.cta .btn-line{border:1px solid rgba(255,255,255,.4);color:#fff}
.cta .btn-line:hover{background:rgba(255,255,255,.1)}
/* === ほかのケーススタディ（トップ同等のリッチカード） === */
  .others2{padding:64px 24px 10px;max-width:1080px;margin:0 auto}
.others2 h2{font-family:var(--serif);font-size:22px;color:var(--navy);margin-bottom:24px;text-align:center}
.oc2-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
@media(max-width:980px){.oc2-grid{grid-template-columns:1fr 1fr;gap:16px}}
@media(max-width:560px){.oc2-grid{grid-template-columns:1fr;gap:16px}}
.oc2{display:block;text-decoration:none;color:inherit;border:1px solid var(--line);border-radius:14px;overflow:hidden;background:#fff;position:relative}
.oc2::before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:var(--acc);z-index:3}
.oc2-cap{height:120px;overflow:hidden;background:var(--bg);border-bottom:1px solid var(--line);position:relative}
.oc2-cap img{width:100%;height:auto;display:block}
.oc2-cap::after{content:"";position:absolute;inset:0;box-shadow:inset 0 -34px 30px -18px rgba(255,255,255,.6)}
.oc2-body{padding:16px 16px 18px}
.oc2-top{display:flex;align-items:center;gap:9px;margin-bottom:10px}
.oc2-ic{width:34px;height:34px;border-radius:9px;background:color-mix(in srgb, var(--acc) 12%, #fff);display:flex;align-items:center;justify-content:center;flex-shrink:0}
.oc2-cat{font-size:12px;font-weight:700;color:var(--acc);letter-spacing:.02em}
.oc2 h3{font-family:var(--serif);font-size:16px;font-weight:800;color:var(--navy);margin-bottom:7px;line-height:1.4}
.oc2 p{font-size:13px;color:#46535f;line-height:1.75;margin-bottom:12px;min-height:64px}
.oc2-tags{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:14px}
.oc2-tags span{font-size:11.5px;color:var(--acc);background:color-mix(in srgb, var(--acc) 9%, #fff);padding:3px 9px;border-radius:99px}
.oc2-more{display:inline-flex;align-items:center;font-size:13.5px;font-weight:700;color:#fff;background:var(--acc);padding:9px 18px;border-radius:99px;transition:transform .25s, box-shadow .25s}
.oc2:hover .oc2-more{transform:translateY(-2px);box-shadow:0 8px 18px rgba(10,37,64,.18)}
/* === site footer (現行サイト準拠) === */
  .site-foot{background:#0e2236;color:rgba(255,255,255,.8);padding:60px 0 30px;position:relative;overflow:hidden;margin-top:60px}
.contactus{background:#e8654f;border-radius:6px;padding:46px 54px;position:relative;overflow:hidden;margin-bottom:64px}