/* 共有デザインシステム（固定ページ用）— index.html のトップと同じトークン/ヘッダー/フッター */
:root{
  --ink:#0B2540; --blue:#1868D6; --blue-d:#0F52B4; --acc:#14A7C9; --sky:#EAF2FE;
  --paper:#FFFFFF; --paper2:#F4F8FF; --grid:rgba(24,104,214,.10); --grid2:rgba(24,104,214,.18);
  --line:rgba(11,37,64,.16); --mut:#3C526B; --dim:#596C81;
  --ff:"Zen Kaku Gothic New",system-ui,sans-serif; --en:"Space Grotesk",sans-serif; --mono:"JetBrains Mono",monospace;
  --wrap:1160px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:var(--ff);color:var(--ink);background:var(--paper);line-height:1.85;-webkit-font-smoothing:antialiased;font-size:16px}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
h1,h2,h3,.lead,.btn,summary{word-break:auto-phrase;text-wrap:balance}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 26px;position:relative;z-index:2}
.mono{font-family:var(--mono)}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--blue);color:#fff;padding:10px 16px;z-index:999;font-weight:700}
.skip-link:focus{left:8px;top:8px}
a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible,textarea:focus-visible,[tabindex]:focus-visible{outline:3px solid var(--acc);outline-offset:2px;border-radius:4px}

/* buttons */
.btn{display:inline-flex;align-items:center;gap:.5em;font-weight:700;padding:15px 26px;border-radius:8px;transition:.22s;line-height:1.3;cursor:pointer;border:1.5px solid transparent;font-size:1rem;font-family:var(--ff)}
.btn-main{background:var(--blue);color:#fff;box-shadow:0 8px 22px rgba(24,104,214,.28)}
.btn-main:hover{background:var(--blue-d);transform:translateY(-2px);box-shadow:0 12px 28px rgba(24,104,214,.38)}
.btn-ghost{background:#fff;color:var(--blue);border-color:var(--blue)}
.btn-ghost:hover{background:var(--sky)}
.btn .ar{font-family:var(--mono);white-space:nowrap}

/* header */
.site-head{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.97);border-bottom:1px solid var(--line)}
.head-in{display:flex;align-items:center;gap:20px;height:72px;max-width:1300px;margin:0 auto;padding:0 26px}
.brand{display:flex;align-items:center;gap:11px}
.brand-logo{height:30px;width:auto;display:block}
.brand-tag{font-size:.6rem;color:var(--mut);font-family:var(--ff);letter-spacing:.05em;line-height:1.25;padding-left:12px;border-left:1px solid var(--line)}
.gnav{margin-left:auto;display:flex;align-items:center;gap:26px}
.gnav a.nl{font-weight:700;font-size:.9rem}
.gnav a.nl[aria-current="page"]{color:var(--blue)}
.gnav a.nl:not(.btn):hover{color:var(--blue)}
.head-cta{display:flex;gap:10px}
.head-cta .btn{padding:9px 16px;font-size:.84rem}
.menu-toggle{display:none;margin-left:auto;width:46px;height:46px;border:1px solid var(--line);border-radius:8px;background:#fff;cursor:pointer;flex-direction:column;justify-content:center;align-items:center;gap:5px}
.menu-toggle span{width:22px;height:2px;background:var(--ink);transition:.3s}

/* page hero (固定ページの見出し帯) */
.phero{position:relative;overflow:hidden;background:linear-gradient(180deg,var(--paper2),var(--paper));border-bottom:1px solid var(--line)}
.phero .hgrid{position:absolute;inset:0;z-index:0;pointer-events:none;background-image:linear-gradient(var(--grid) 1px,transparent 1px),linear-gradient(90deg,var(--grid) 1px,transparent 1px);background-size:32px 32px;mix-blend-mode:multiply;mask-image:radial-gradient(ellipse 90% 80% at 60% 40%,#000 40%,transparent 85%)}
.phero .wrap{padding-top:72px;padding-bottom:64px}
.phero .ey{display:inline-flex;align-items:center;gap:9px;font-family:var(--mono);font-size:.66rem;font-weight:700;letter-spacing:.16em;color:var(--blue);text-transform:uppercase;margin-bottom:14px}
.phero .ey::before{content:"";width:26px;height:2px;background:var(--acc)}
.phero h1{font-size:clamp(2rem,4.4vw,3rem);font-weight:900;line-height:1.25;margin:0;letter-spacing:.01em}
.phero h1 .mk{color:var(--blue)}
.phero p.sub{margin:16px 0 0;color:var(--mut);font-size:1.04rem;max-width:44em}

/* generic page section */
.psec{padding:70px 0 96px}

/* contact form */
.form-error{max-width:720px;margin:0 auto 22px;background:#FEF2F2;border:1.5px solid #F3B4B4;color:#B42318;border-radius:12px;padding:15px 18px;font-size:.92rem;font-weight:700;line-height:1.7}
.cform{max-width:720px;margin:0 auto;display:grid;gap:22px}
.cform .fg{display:grid;gap:8px}
.cform label{font-weight:700;font-size:.94rem;display:flex;align-items:center;gap:8px}
.cform label .req{font-family:var(--mono);font-size:.6rem;color:#fff;background:var(--blue);border-radius:4px;padding:2px 7px;font-weight:700}
.cform label .opt{font-family:var(--mono);font-size:.6rem;color:var(--mut);border:1px solid var(--line);border-radius:4px;padding:2px 7px}
.cform input[type=text],.cform input[type=email],.cform input[type=tel],.cform textarea,.cform select{font-family:var(--ff);font-size:1rem;color:var(--ink);background:#fff;border:1.5px solid var(--line);border-radius:10px;padding:13px 16px;width:100%;transition:.18s}
.cform select{appearance:none;-webkit-appearance:none;padding-right:46px;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%231868D6' stroke-width='2.4' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 16px center;background-size:16px;cursor:pointer}
.cform input:focus,.cform textarea:focus,.cform select:focus{border-color:var(--blue);outline:none;box-shadow:0 0 0 4px rgba(24,104,214,.12)}
.cform textarea{min-height:150px;resize:vertical;line-height:1.7}
.cform .consent{display:flex;align-items:flex-start;gap:11px;font-size:.9rem;color:var(--mut);background:var(--paper2);border:1px solid var(--line);border-radius:10px;padding:16px 18px}
.cform .consent input{margin-top:3px;width:18px;height:18px;flex:0 0 auto;accent-color:var(--blue)}
.cform .consent a{color:var(--blue);text-decoration:underline}
.cform .submit{display:flex;justify-content:center;margin-top:6px}
.cform .submit .btn{padding:16px 40px;font-size:1.05rem}
.cform .note{font-size:.82rem;color:var(--dim);text-align:center;line-height:1.7}
.hp{position:absolute;left:-9999px;opacity:0;height:0;overflow:hidden}
.contact-aside{max-width:720px;margin:36px auto 0;border-top:1px dashed var(--grid2);padding-top:26px;color:var(--mut);font-size:.92rem;line-height:1.9;text-align:center}
.contact-aside b{color:var(--ink)}

/* privacy policy */
.policy{max-width:820px;margin:0 auto}
.policy>.intro{color:var(--mut);font-size:1rem;line-height:1.95;margin:0 0 8px}
.policy h2{font-size:1.16rem;font-weight:900;color:var(--ink);margin:38px 0 12px;padding-left:14px;border-left:4px solid var(--blue);line-height:1.5}
.policy p{color:var(--mut);font-size:.96rem;line-height:1.95;margin:0 0 12px}
.policy ol,.policy ul{color:var(--mut);font-size:.96rem;line-height:1.9;margin:0 0 12px;padding-left:1.5em}
.policy li{margin-bottom:7px}
.policy ol.paren{list-style:none;padding-left:1.2em}
.policy ol.paren>li{counter-increment:p;position:relative}
.policy ol.paren>li::before{content:"("counter(p)")";position:absolute;left:-1.9em;color:var(--blue);font-family:var(--mono);font-size:.82rem}
.policy .roundlist{list-style:none;padding-left:1.4em}
.policy .roundlist>li{position:relative}
.policy .roundlist>li::before{content:"・";position:absolute;left:-1.1em;color:var(--blue)}
.policy .p-info{background:var(--paper2);border:1px solid var(--line);border-radius:12px;padding:22px 26px;margin:16px 0 8px}
.policy .p-info dt{font-family:var(--mono);font-size:.72rem;color:var(--blue);font-weight:700;margin-top:12px}
.policy .p-info dt:first-child{margin-top:0}
.policy .p-info dd{margin:2px 0 0;font-size:.96rem;color:var(--ink)}
.policy .p-info a{color:var(--blue);text-decoration:underline}
.policy .p-date{margin-top:34px;padding-top:18px;border-top:1px dashed var(--grid2);font-family:var(--mono);font-size:.8rem;color:var(--dim)}
.policy .p-end{text-align:right;color:var(--mut);margin-top:14px;font-weight:700}

/* thanks / 404 centered message */
.msgpage{min-height:calc(100vh - 72px);display:flex;align-items:center;position:relative;overflow:hidden;background:linear-gradient(180deg,var(--paper2),var(--paper))}
.msgpage .hgrid{position:absolute;inset:0;z-index:0;pointer-events:none;background-image:linear-gradient(var(--grid) 1px,transparent 1px),linear-gradient(90deg,var(--grid) 1px,transparent 1px);background-size:32px 32px;mix-blend-mode:multiply;mask-image:radial-gradient(ellipse 80% 80% at 50% 30%,#000 35%,transparent 85%)}
.msgpage .inner{position:relative;z-index:1;text-align:center;max-width:640px;margin:0 auto;padding:80px 26px}
.msgpage .big{font-family:var(--en);font-weight:700;font-size:clamp(3.4rem,12vw,7rem);line-height:.95;color:var(--blue);letter-spacing:.02em}
.msgpage .ic{width:76px;height:76px;border-radius:18px;background:var(--blue);display:inline-flex;align-items:center;justify-content:center;margin-bottom:22px;box-shadow:0 16px 34px rgba(24,104,214,.3)}
.msgpage h1{font-size:clamp(1.7rem,3.6vw,2.4rem);font-weight:900;margin:20px 0 14px;letter-spacing:.01em}
.msgpage h1 .mk{color:var(--blue)}
.msgpage p{color:var(--mut);font-size:1.04rem;margin:0 0 30px;line-height:1.9}
.msgpage .cta-row{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}

/* footer */
.site-foot{background:var(--ink);color:#A9BBD0;padding:60px 0 30px}
.site-foot .grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:34px;padding-bottom:34px;border-bottom:1px solid rgba(255,255,255,.12)}
.site-foot .fb .foot-logo{height:32px;width:auto;display:block;margin-bottom:8px}
.site-foot .fb p a{color:#8FBBFF;text-decoration:underline}
.site-foot .fb small{display:block;color:#7B90AC;margin-top:6px;font-size:.76rem}
.site-foot .fb p{font-size:.84rem;line-height:1.9;margin:14px 0 0}
.site-foot h4{color:#fff;font-size:.82rem;margin:0 0 14px;font-weight:700;font-family:var(--mono)}
.site-foot ul{list-style:none;padding:0;margin:0}
.site-foot li{margin-bottom:9px;font-size:.9rem}
.site-foot a:hover{color:#fff}
.site-foot .copy{text-align:center;padding-top:24px;font-size:.76rem;color:#6B809C;font-family:var(--mono)}

@media(max-width:768px){
  .gnav{display:none;position:absolute;top:72px;left:0;right:0;background:#fff;flex-direction:column;align-items:stretch;gap:0;padding:10px 20px 20px;border-bottom:1px solid var(--line);box-shadow:0 20px 30px rgba(11,37,64,.1)}
  .gnav.open{display:flex}
  .gnav a.nl{padding:14px 4px;border-bottom:1px solid var(--line)}
  .head-cta{flex-direction:column;margin-top:10px}
  .menu-toggle{display:flex}
  .site-foot .grid{grid-template-columns:1fr;gap:26px}
  .phero .wrap{padding-top:52px;padding-bottom:48px}
  .psec{padding:52px 0 72px}
}
@media(hover:none){.btn,.gnav a,.menu-toggle,summary{min-height:44px}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto}.btn-main:hover{transform:none}}