@charset "utf-8";
/* 株式会社バックオフィスチアー — 共通スタイル */

:root{
  --navy:#12294d;
  --navy-deep:#0d1f3d;
  --blue:#2b63c9;
  --blue-dark:#1f4fa8;
  --blue-ink:#1f4c9e;
  --blue-pale:#e5eefb;
  --blue-soft:#c3d8f7;
  --blue-light:#7ea6e8;
  --bg:#f4f7fc;
  --line:#e4e9f2;
  --line-soft:#eef1f7;
  --ink:#23304a;
  --muted:#4c5872;
  --muted-2:#7a8398;
  --muted-3:#8a93a8;
  --sans:'Noto Sans JP',sans-serif;
  --disp:'Zen Kaku Gothic New',sans-serif;
  --mono:'Space Grotesk',sans-serif;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--sans);
  background:var(--bg);
  color:var(--navy);
  overflow-x:hidden;
  -webkit-text-size-adjust:100%;
}
img{display:block;max-width:100%}
a{color:var(--blue)}
a:hover{color:var(--blue-dark)}
h1,h2,h3,h4{margin:0}
p{margin:0}

.wrap{max-width:1200px;margin:0 auto;padding-left:32px;padding-right:32px}
.skip{position:absolute;left:-9999px}
.skip:focus{left:16px;top:16px;z-index:100;background:#fff;padding:10px 16px;border-radius:8px}

/* ===== ヘッダー ===== */
.site-header{position:sticky;top:0;z-index:50;background:rgba(244,247,252,.85);backdrop-filter:blur(14px);border-bottom:1px solid #e0e7f1}
.site-header .inner{max-width:1200px;margin:0 auto;padding:15px 32px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.brand{display:flex;align-items:center;gap:13px;text-decoration:none;color:var(--navy)}
.brand img{height:30px;width:auto}
.brand .names{display:flex;flex-direction:column;line-height:1.05;border-left:1px solid #d6deea;padding-left:13px}
.brand .jp{font-family:var(--disp);font-weight:700;font-size:15px;letter-spacing:.02em}
.brand .en{font-family:var(--mono);font-size:9.5px;letter-spacing:.2em;color:var(--blue);font-weight:600}
.gnav{display:flex;align-items:center;gap:28px;flex-wrap:wrap;justify-content:flex-end}
.gnav a{text-decoration:none;color:#47536e;font-size:14px;font-weight:500}
.gnav a:hover{color:var(--blue)}
.gnav a[aria-current="page"]{color:var(--blue);font-weight:700}
.gnav .cta{color:#fff;background:var(--navy);font-weight:700;padding:11px 22px;border-radius:999px}
.gnav .cta:hover{background:var(--blue);color:#fff}

/* ===== ボタン ===== */
.btn{display:inline-block;text-decoration:none;font-weight:700;font-size:15px;padding:16px 30px;border-radius:999px}
.btn-primary{background:var(--blue);color:#fff;box-shadow:0 12px 26px rgba(43,99,201,.30)}
.btn-primary:hover{background:var(--blue-dark);color:#fff}
.btn-ghost{background:#fff;color:var(--navy);border:1px solid #dde4ef}
.btn-ghost:hover{border-color:var(--navy);color:var(--navy)}

/* ===== 見出し ===== */
.eyebrow{font-family:var(--mono);font-weight:700;font-size:13px;letter-spacing:.22em;color:var(--blue)}
.eyebrow.on-navy{color:var(--blue-light)}
.sec-head{text-align:center;max-width:640px;margin:0 auto}
.sec-head h2,.sec-head h1{font-family:var(--disp);font-weight:900;font-size:38px;margin:12px 0 0}
.sec-head p{font-size:15.5px;line-height:1.9;color:var(--muted);margin:16px 0 0}
.sec{max-width:1200px;margin:0 auto;padding:90px 32px 20px}

/* ===== ヒーロー ===== */
.hero{position:relative;max-width:1200px;margin:0 auto;padding:76px 32px 62px;display:flex;gap:56px;align-items:center;flex-wrap:wrap}
.hero-copy{flex:1 1 470px;min-width:320px}
.tagpill{display:inline-flex;align-items:center;gap:9px;background:var(--blue-pale);color:var(--blue-ink);font-size:12.5px;font-weight:700;padding:7px 15px;border-radius:999px;letter-spacing:.04em}
.tagpill .dot{width:7px;height:7px;border-radius:50%;background:var(--blue);display:inline-block}
.hero h1{font-family:var(--disp);font-weight:900;font-size:52px;line-height:1.24;letter-spacing:.01em;margin:22px 0 0}
.hero h1 .mark{position:relative;display:inline-block}
.hero h1 .mark .accent{color:var(--blue)}
.hero h1 .mark .under{position:absolute;left:0;bottom:4px;width:100%;height:13px;background:var(--blue-soft);z-index:-1;border-radius:3px}
.hero .lead{font-size:16.5px;line-height:2;color:var(--muted);margin:26px 0 0;max-width:490px}
.hero-actions{display:flex;gap:14px;margin-top:34px;flex-wrap:wrap}
.hero-points{display:flex;align-items:center;gap:20px;margin-top:36px;flex-wrap:wrap}
.hero-points span{display:inline-flex;align-items:center;gap:8px;font-size:13.5px;color:var(--muted)}
.hero-points i{color:var(--blue);font-style:normal}
.hero-media{flex:1 1 400px;min-width:300px;position:relative}
.hero-media .blob{position:absolute;inset:-22px -22px auto auto;width:150px;height:150px;background:var(--blue);border-radius:50%;opacity:.12;animation:bocPulse 6s ease-in-out infinite}
.hero-media .frame{position:relative;border-radius:26px;overflow:hidden;aspect-ratio:4/3.1;border:1px solid #dfe6f1;box-shadow:0 30px 60px rgba(18,41,77,.14);animation:bocFloat 7s ease-in-out infinite}
.hero-media .frame img{width:100%;height:100%;object-fit:cover}
.hero-badge{position:absolute;left:-26px;bottom:34px;background:#fff;padding:16px 20px;border-radius:16px;box-shadow:0 18px 40px rgba(18,41,77,.16);display:flex;align-items:center;gap:13px}
.hero-badge .ic{width:42px;height:42px;border-radius:12px;background:var(--blue-pale);color:var(--blue);display:inline-flex;align-items:center;justify-content:center;font-size:21px}
.hero-badge .t{font-family:var(--disp);font-weight:700;font-size:15px}
.hero-badge .s{font-size:12px;color:var(--muted-3)}
@keyframes bocFloat{0%,100%{transform:translateY(0)}50%{transform:translateY(-12px)}}
@keyframes bocPulse{0%,100%{transform:scale(1);opacity:.5}50%{transform:scale(1.08);opacity:.75}}
@media (prefers-reduced-motion:reduce){.hero-media .frame,.hero-media .blob{animation:none}}

/* ===== お悩み ===== */
.worry{background:var(--navy);color:#fff}
.worry .inner{max-width:1200px;margin:0 auto;padding:84px 32px}
.worry h2{font-family:var(--disp);font-weight:900;font-size:36px;margin:12px 0 0;color:#fff}
.worry-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;margin:48px auto 0;max-width:860px}
.worry-item{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.10);border-radius:14px;padding:22px 24px;display:flex;align-items:center;gap:15px}
.worry-item .q{width:34px;height:34px;border-radius:50%;background:rgba(126,166,232,.18);color:#9dbef0;display:inline-flex;align-items:center;justify-content:center;font-size:17px;flex-shrink:0}
.worry-item p{font-size:15px;line-height:1.6;color:#e3e9f3}
.worry-cta{text-align:center;margin-top:40px}
.worry-cta span{display:inline-flex;align-items:center;gap:10px;font-family:var(--disp);font-weight:700;font-size:19px;color:#fff}
.worry-cta i{color:var(--blue-light);font-style:normal}

/* ===== サービス ===== */
.svc-group{margin-top:56px}
.svc-group-head{display:flex;align-items:center;gap:16px;margin-bottom:26px}
.svc-group-head .num{font-family:var(--mono);font-weight:700;font-size:30px;color:var(--blue)}
.svc-group-head h3{font-family:var(--disp);font-weight:900;font-size:24px}
.svc-group-head p{font-size:13.5px;color:var(--muted-2);margin-top:4px}
.card-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.svc-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:28px;transition:border-color .2s,transform .2s,box-shadow .2s}
.svc-card:hover{border-color:var(--blue);transform:translateY(-3px);box-shadow:0 20px 40px rgba(18,41,77,.08)}
.svc-card .row{display:flex;align-items:center;gap:13px}
.svc-card .tag{font-size:12px;font-weight:700;color:var(--blue-ink);background:var(--blue-pale);padding:5px 12px;border-radius:8px;white-space:nowrap}
.svc-card h4{font-family:var(--disp);font-weight:700;font-size:18px}
.svc-card p{font-size:14px;line-height:1.9;color:var(--muted);margin-top:15px}

/* ===== 導入事例 ===== */
.voice{max-width:880px;margin:0 auto;background:#fff;border:1px solid var(--line);border-radius:24px;padding:44px 48px;display:flex;gap:34px;align-items:center;flex-wrap:wrap;box-shadow:0 20px 46px rgba(18,41,77,.07)}
.voice .who{flex:0 0 auto;display:flex;flex-direction:column;align-items:center;gap:12px}
.voice .avatar{width:88px;height:88px;border-radius:50%;background:var(--navy);color:#fff;display:inline-flex;align-items:center;justify-content:center;font-family:var(--mono);font-weight:700;font-size:30px}
.voice .who .n{font-family:var(--disp);font-weight:700;font-size:15px;text-align:center}
.voice .who .b{font-size:12px;color:var(--muted-3);text-align:center}
.voice .body{flex:1 1 400px;min-width:280px}
.voice .qm{font-family:var(--mono);font-size:46px;color:var(--blue-soft);line-height:.8}
.voice blockquote{margin:4px 0 0;font-family:var(--disp);font-weight:500;font-size:19px;line-height:1.85;color:var(--ink)}
.voice blockquote strong{color:var(--blue);font-weight:700}

/* ===== 会社概要 ===== */
.company-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:48px;align-items:start}
.company-grid h2{font-family:var(--disp);font-weight:900;font-size:38px;margin:12px 0 0}
.company-grid .intro{font-size:15px;line-height:2;color:var(--muted);margin:18px 0 0}
.ceo{margin-top:26px;background:var(--navy);color:#fff;border-radius:18px;padding:26px 28px}
.ceo .role{font-size:12px;color:var(--blue-light);letter-spacing:.04em}
.ceo .nm{font-family:var(--disp);font-weight:700;font-size:22px;margin-top:4px}
.ceo .nm small{font-size:13px;font-weight:400;color:#b7c3d8}
.ceo p{font-size:13.5px;line-height:1.95;color:#cdd6e6;margin:14px 0 0}
.table{background:#fff;border:1px solid var(--line);border-radius:20px;overflow:hidden}
.table dl{margin:0}
.table .tr{display:grid;grid-template-columns:130px 1fr;border-bottom:1px solid var(--line-soft)}
.table .tr:last-child{border-bottom:0}
.table dt{background:#f6f8fc;padding:17px 22px;font-size:13.5px;font-weight:700;color:#47536e}
.table dd{margin:0;padding:17px 22px;font-size:14.5px;color:var(--ink);line-height:1.6;word-break:break-word}
.table dd a{text-decoration:none}
.table dd a:hover{text-decoration:underline}

/* ===== お問い合わせ ===== */
.contact{background:#eef3fb;border-top:1px solid #dde5f1}
.contact .inner{max-width:1120px;margin:0 auto;padding:88px 32px}
.contact .sec-head{margin-bottom:50px}
.contact .sec-head h2,.contact .sec-head h1{font-size:40px}
.contact-grid{display:grid;grid-template-columns:.82fr 1.18fr;border-radius:26px;overflow:hidden;box-shadow:0 30px 70px rgba(18,41,77,.14);background:#fff}
.contact-aside{background:var(--navy);color:#fff;padding:48px 42px;display:flex;flex-direction:column}
.contact-aside h2,.contact-aside h3{font-family:var(--disp);font-weight:700;font-size:23px;line-height:1.5}
.contact-aside .note{font-size:14px;line-height:2;color:#b7c3d8;margin:18px 0 0}
.contact-ways{margin-top:38px;display:flex;flex-direction:column;gap:20px}
.way{display:flex;align-items:flex-start;gap:14px}
.way .ic{width:40px;height:40px;border-radius:11px;background:rgba(126,166,232,.18);color:#9dbef0;display:inline-flex;align-items:center;justify-content:center;font-size:18px;flex-shrink:0}
.way .lbl{font-size:12px;color:#93a0b8;letter-spacing:.04em}
.way .val{font-family:var(--mono);font-weight:700;font-size:22px;margin-top:2px;color:#fff;text-decoration:none;display:inline-block}
.way .val.mail{font-weight:600;font-size:15px;word-break:break-all}
.way .val:hover{color:#9dbef0}
.way .sub{font-size:12px;color:#93a0b8;margin-top:2px}
.assure{margin-top:auto;padding-top:34px;display:flex;flex-direction:column;gap:11px}
.assure div{display:flex;align-items:center;gap:10px;font-size:13px;color:#cdd6e6}
.assure i{color:var(--blue-light);font-style:normal}
.contact-form{padding:46px 46px 42px;position:relative}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px 20px}
.field.full{grid-column:1 / 3}
.field label,.field .lab{display:block;font-size:13px;font-weight:700;color:#2a3550;margin-bottom:9px}
.req{color:var(--blue);margin-left:6px;font-size:11px}
.opt{color:#9aa3b0;margin-left:6px;font-size:11px}
.field input[type=text],.field input[type=email],.field input[type=tel],.field textarea{
  width:100%;font-family:var(--sans);font-size:15px;color:var(--navy);padding:13px 15px;
  border:1.5px solid #dfe4ee;border-radius:11px;outline:none;background:#fafbfe}
.field textarea{line-height:1.7;resize:vertical}
.field input:focus,.field textarea:focus{border-color:var(--blue);background:#fff}
.field ::placeholder{color:#9aa3b0}
.err{font-size:12px;color:#d13c1e;margin-top:6px;min-height:16px}
.types{display:flex;gap:10px;flex-wrap:wrap}
.types input{position:absolute;opacity:0;width:0;height:0}
.types label{font-family:var(--sans);font-weight:500;font-size:13.5px;padding:10px 18px;border-radius:999px;cursor:pointer;border:1.5px solid #dfe4ee;background:#fff;color:var(--muted);margin:0;display:inline-block}
.types input:checked + label{font-weight:700;border-color:var(--blue);background:var(--blue-pale);color:var(--blue-ink)}
.types input:focus-visible + label{outline:2px solid var(--blue);outline-offset:2px}
.agree{display:flex;align-items:flex-start;gap:11px;margin-top:8px;cursor:pointer}
.agree input{width:18px;height:18px;margin-top:1px;accent-color:var(--blue);cursor:pointer;flex-shrink:0}
.agree span{font-size:13px;line-height:1.7;color:var(--muted)}
.submit{width:100%;margin-top:10px;background:var(--blue);color:#fff;font-family:var(--disp);font-weight:700;font-size:16px;padding:17px;border:none;border-radius:13px;cursor:pointer;box-shadow:0 14px 30px rgba(43,99,201,.32)}
.submit:hover{background:var(--blue-dark)}
.submit[disabled]{opacity:.65;cursor:default}
.hp{position:absolute;left:-9999px;top:-9999px;width:1px;height:1px;opacity:0}
.send-error{background:#fdecec;border:1px solid #f3c2c2;color:#c02f18;font-size:13px;line-height:1.7;padding:12px 15px;border-radius:11px;margin-bottom:6px}
.thanks{min-height:460px;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center}
.thanks .ic{width:74px;height:74px;border-radius:50%;background:var(--blue-pale);color:var(--blue);display:inline-flex;align-items:center;justify-content:center;font-size:36px}
.thanks h2,.thanks h3{font-family:var(--disp);font-weight:700;font-size:24px;margin:22px 0 0}
.thanks p{font-size:14.5px;line-height:2;color:var(--muted);margin:14px 0 0;max-width:360px}
.thanks .back{margin-top:26px;background:#fff;border:1px solid #dde4ef;color:var(--navy);font-family:var(--sans);font-weight:700;font-size:14px;padding:13px 26px;border-radius:999px;cursor:pointer;text-decoration:none;display:inline-block}

/* ===== ページ下部の誘導 ===== */
.more{display:inline-flex;align-items:center;gap:8px;margin-top:26px;font-weight:700;font-size:14.5px;text-decoration:none;color:var(--blue)}
.more:hover{text-decoration:underline}
.page-head{max-width:1200px;margin:0 auto;padding:64px 32px 8px}
.crumbs{font-size:12.5px;color:var(--muted-2);margin-bottom:18px}
.crumbs ol{list-style:none;display:flex;flex-wrap:wrap;gap:8px;margin:0;padding:0}
.crumbs a{color:var(--muted-2);text-decoration:none}
.crumbs a:hover{color:var(--blue);text-decoration:underline}
.crumbs li[aria-current]{color:var(--navy);font-weight:700}
.cta-band{max-width:1200px;margin:72px auto 0;padding:0 32px}
.cta-band .box{background:var(--navy);color:#fff;border-radius:24px;padding:52px 48px;display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap}
.cta-band h2{font-family:var(--disp);font-weight:900;font-size:28px;line-height:1.5}
.cta-band p{font-size:14.5px;line-height:1.9;color:#b7c3d8;margin-top:12px}

/* ===== フッター ===== */
.site-footer{background:var(--navy-deep);color:#fff;margin-top:88px}
.site-footer .inner{max-width:1200px;margin:0 auto;padding:56px 32px 30px}
.site-footer .top{display:flex;justify-content:space-between;gap:40px;flex-wrap:wrap}
.site-footer .id{max-width:340px}
.site-footer .id .line{display:flex;align-items:center;gap:13px}
.site-footer .id img{height:30px;width:auto}
.site-footer .id .nm{font-family:var(--disp);font-weight:700;font-size:16px}
.site-footer address{font-style:normal;font-size:13px;line-height:1.9;color:#9aa6bd;margin:16px 0 0}
.site-footer address a{color:#9aa6bd;text-decoration:none}
.site-footer address a:hover{color:#fff}
.site-footer .cols{display:flex;gap:56px;flex-wrap:wrap}
.site-footer .col{display:flex;flex-direction:column;gap:11px}
.site-footer .col .h{font-size:12px;color:#647394;letter-spacing:.1em;font-family:var(--mono)}
.site-footer .col a{color:#cdd6e6;text-decoration:none;font-size:13.5px}
.site-footer .col a:hover{color:#fff}
.site-footer .copy{border-top:1px solid rgba(255,255,255,.08);margin-top:40px;padding-top:22px;font-size:12px;color:#647394;font-family:var(--mono)}

/* ===== レスポンシブ ===== */
@media (max-width:920px){
  .card-grid,.worry-grid,.company-grid,.contact-grid,.form-grid{grid-template-columns:1fr}
  .company-grid{gap:32px}
  .field.full{grid-column:1 / -1}
  .form-grid > .field{grid-column:1 / -1}
  .hero h1{font-size:42px}
  .contact-grid{box-shadow:0 20px 46px rgba(18,41,77,.12)}
}
@media (max-width:860px){
  .site-header .inner{flex-wrap:wrap;gap:10px}
  .gnav{gap:16px;width:100%;justify-content:flex-start;order:2}
  .gnav a{font-size:13px}
  .gnav .cta{padding:9px 18px;margin-left:auto}
}
@media (max-width:600px){
  .wrap,.sec,.page-head,.cta-band{padding-left:18px;padding-right:18px}
  .site-header .inner{padding:12px 18px}
  .hero{padding:40px 18px 44px;gap:34px}
  .hero-copy,.hero-media{min-width:0;flex-basis:100%}
  .hero h1{font-size:32px;line-height:1.32}
  .hero-badge{left:0;bottom:-14px;padding:13px 16px}
  .worry .inner{padding:56px 18px}
  .sec{padding:56px 18px 8px}
  .contact .inner{padding:56px 18px}
  .contact-aside{padding:34px 26px}
  .contact-form{padding:30px 24px 32px}
  .voice{padding:30px 24px}
  .site-footer .inner{padding:44px 18px 26px}
  .site-footer .cols{gap:32px}
  .sec-head h1,.sec-head h2,.contact .sec-head h1,.contact .sec-head h2,.worry h2,.company-grid h2{font-size:27px}
  .cta-band .box{padding:34px 26px}
  .cta-band h2{font-size:22px}
  .table .tr{grid-template-columns:100px 1fr}
  .table dt,.table dd{padding:14px 16px;font-size:13.5px}
}