/* ===== LightGuide ===== */
:root{
  --bg:#06101f;
  --bg-2:#0a1a30;
  --bg-3:#0d2140;
  --line:rgba(94,200,255,.16);
  --line-strong:rgba(94,200,255,.35);
  --text:#e6f1fb;
  --text-sub:#9fb6cf;
  --accent:#38bdf8;
  --accent-2:#5eead4;
  --accent-soft:rgba(56,189,248,.12);
  --radius:14px;
  --header-h:68px;
  --font-ja:"Noto Sans JP","Hiragino Kaku Gothic ProN","Hiragino Sans",Meiryo,sans-serif;
  --font-en:"Outfit","Noto Sans JP",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:var(--header-h);-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--text);font-family:var(--font-ja);font-size:16px;line-height:1.85;letter-spacing:.02em;overflow-x:hidden;-webkit-font-smoothing:antialiased}
img,svg{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul,ol{list-style:none;margin:0;padding:0}
h1,h2,h3,p,dl,dd{margin:0}
.pc{display:inline}
.sp{display:none}

.container{width:100%;max-width:1160px;margin:0 auto;padding:0 24px}
.container.narrow{max-width:880px}

/* ---- header ---- */
.header{position:fixed;inset:0 0 auto;height:var(--header-h);z-index:100;transition:background .3s,border-color .3s,backdrop-filter .3s;border-bottom:1px solid transparent}
.header.is-scrolled{background:rgba(6,16,31,.82);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-color:var(--line)}
.header__inner{max-width:1240px;height:100%;margin:0 auto;padding:0 24px;display:flex;align-items:center;justify-content:space-between}
.logo{display:flex;align-items:center;gap:10px}
.logo__mark{width:32px;height:32px}
.logo__text{font-family:var(--font-en);font-weight:700;font-size:1.4rem;letter-spacing:.01em;background:linear-gradient(180deg,#fff 20%,#9edcff);-webkit-background-clip:text;background-clip:text;color:transparent}
.gnav ul{display:flex;align-items:center;gap:6px}
.gnav a{display:block;padding:8px 14px;font-size:.92rem;font-weight:500;color:var(--text-sub);border-radius:8px;transition:color .2s,background .2s}
.gnav a:hover{color:#fff;background:rgba(255,255,255,.05)}
.gnav a.gnav__cta{color:#04223a;background:linear-gradient(135deg,#7dd3fc,#38bdf8);font-weight:700;margin-left:8px}
.gnav a.gnav__cta:hover{filter:brightness(1.08);color:#04223a}
.nav-toggle{display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:10px;background:rgba(255,255,255,.03);position:relative;cursor:pointer}
.nav-toggle span{position:absolute;left:12px;right:12px;height:2px;background:var(--text);border-radius:2px;transition:transform .3s,opacity .3s}
.nav-toggle span:nth-child(1){top:15px}.nav-toggle span:nth-child(2){top:21px}.nav-toggle span:nth-child(3){top:27px}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* ---- hero ---- */
.hero{position:relative;min-height:100vh;min-height:100svh;display:flex;align-items:center;padding:calc(var(--header-h) + 40px) 0 80px;overflow:hidden;
  background:radial-gradient(ellipse 60% 70% at 78% 45%,rgba(30,90,160,.45),transparent 70%),radial-gradient(ellipse 50% 50% at 10% 20%,rgba(20,60,120,.35),transparent 70%),linear-gradient(180deg,#050d1a,#081a33 60%,var(--bg))}
.hero__grid{position:absolute;inset:0;background-image:linear-gradient(rgba(94,200,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(94,200,255,.05) 1px,transparent 1px);background-size:44px 44px;mask-image:radial-gradient(ellipse 80% 70% at 50% 40%,#000 30%,transparent 80%);-webkit-mask-image:radial-gradient(ellipse 80% 70% at 50% 40%,#000 30%,transparent 80%)}
.hero__inner{position:relative;width:100%;max-width:1240px;margin:0 auto;padding:0 24px;display:grid;grid-template-columns:1.1fr .9fr;align-items:center;gap:40px}
.badge{display:inline-flex;align-items:center;gap:10px;padding:7px 18px;border:1px solid var(--line-strong);border-radius:999px;background:rgba(56,189,248,.08);font-size:.88rem;font-weight:700;letter-spacing:.12em;color:#bfe8ff}
.badge__dot{width:8px;height:8px;border-radius:50%;background:var(--accent);box-shadow:0 0 10px var(--accent);animation:blink 2s ease-in-out infinite}
.hero__title{margin-top:22px;font-family:var(--font-en);font-weight:800;font-size:clamp(3.2rem,8.5vw,6.4rem);line-height:1;letter-spacing:-.01em;background:linear-gradient(180deg,#fff 30%,#a5dcff 100%);-webkit-background-clip:text;background-clip:text;color:transparent;filter:drop-shadow(0 0 28px rgba(94,200,255,.35))}
.hero__lead{margin-top:26px;font-size:clamp(1.4rem,3vw,2rem);font-weight:700;line-height:1.5}
.hero__lead em{font-style:normal;color:var(--accent-2)}
.hero__text{margin-top:18px;color:var(--text-sub);font-size:1.02rem}
.chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.chips li{padding:6px 14px;border:1px solid var(--line-strong);border-radius:8px;background:rgba(10,30,58,.7);font-size:.88rem;font-weight:700;color:#d6ecff}
.hero__actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:36px}
.btn{display:inline-flex;align-items:center;justify-content:center;min-width:180px;padding:14px 28px;border-radius:10px;font-weight:700;font-size:1rem;transition:transform .2s,box-shadow .2s,background .2s}
.btn--primary{color:#04223a;background:linear-gradient(135deg,#7dd3fc,#38bdf8);box-shadow:0 8px 30px rgba(56,189,248,.35)}
.btn--primary:hover{transform:translateY(-2px);box-shadow:0 12px 36px rgba(56,189,248,.5)}
.btn--ghost{border:1px solid var(--line-strong);color:#d6ecff;background:rgba(255,255,255,.02)}
.btn--ghost:hover{background:var(--accent-soft)}
.hero__visual{display:flex;justify-content:center}
.tree{width:100%;max-width:480px;overflow:visible}
.tree__lines line{stroke-dasharray:220;stroke-dashoffset:220;animation:draw 1.4s ease forwards}
.tree__lines line:nth-child(n+4){animation-delay:.6s}
.tree__nodes circle,.tree__leaves circle{filter:drop-shadow(0 0 8px rgba(94,200,255,.9));transform-box:fill-box;transform-origin:center;animation:pop .5s ease backwards}
.tree__nodes circle{animation-delay:.8s}
.tree__leaves circle{animation-delay:1.5s}
.tree__leaves circle:nth-child(2n){animation:pop .5s ease 1.6s backwards,twinkle 3s ease-in-out 2.2s infinite}
.pulse{transform-box:fill-box;transform-origin:center;animation:pulse 2.8s ease-out infinite}
@keyframes draw{to{stroke-dashoffset:0}}
@keyframes pop{from{transform:scale(0);opacity:0}}
@keyframes pulse{0%{transform:scale(1);opacity:.7}100%{transform:scale(1.9);opacity:0}}
@keyframes twinkle{50%{opacity:.45}}
@keyframes blink{50%{opacity:.4}}

/* ---- sections ---- */
.section{padding:110px 0;position:relative}
.section__head{text-align:center;margin-bottom:56px}
.eyebrow{font-family:var(--font-en);font-weight:600;font-size:.85rem;letter-spacing:.28em;color:var(--accent)}
.section__title{margin-top:10px;font-size:clamp(1.6rem,3.4vw,2.3rem);font-weight:900;line-height:1.45}
.section__desc{margin-top:16px;color:var(--text-sub)}

.intro{text-align:center;background:linear-gradient(180deg,var(--bg),var(--bg-2))}
.intro__text{margin-top:28px;color:var(--text-sub);font-size:1.05rem;text-align:left}

.service{background:var(--bg-2)}
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{padding:34px 30px;border:1px solid var(--line);border-radius:var(--radius);background:linear-gradient(160deg,rgba(18,44,80,.75),rgba(8,22,42,.75));transition:transform .3s,border-color .3s,box-shadow .3s}
.card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:0 18px 40px rgba(0,0,0,.35),0 0 0 1px rgba(56,189,248,.1)}
.card__icon{width:54px;height:54px;display:grid;place-items:center;border-radius:12px;background:var(--accent-soft);border:1px solid var(--line-strong)}
.card__icon svg,.contact__btn svg,.totop svg{width:26px;height:26px;fill:none;stroke:var(--accent);stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.card__title{margin:20px 0 10px;font-size:1.2rem;font-weight:700}
.card p{color:var(--text-sub);font-size:.95rem}

.strength{background:linear-gradient(180deg,var(--bg-2),var(--bg))}
.strength__list{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.strength__item{display:flex;gap:22px;padding:32px;border-radius:var(--radius);border:1px solid var(--line);background:rgba(10,28,52,.55)}
.strength__num{flex-shrink:0;font-family:var(--font-en);font-weight:800;font-size:2.4rem;line-height:1;background:linear-gradient(180deg,#7dd3fc,#2563eb);-webkit-background-clip:text;background-clip:text;color:transparent}
.strength__item h3{font-size:1.18rem;font-weight:700;margin-bottom:8px}
.strength__item p{color:var(--text-sub);font-size:.95rem}

.flow__list{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;counter-reset:step}
.flow__step{position:relative;padding:28px 26px;border-radius:var(--radius);border:1px solid var(--line);background:rgba(10,28,52,.5)}
.flow__no{font-family:var(--font-en);font-weight:700;font-size:.8rem;letter-spacing:.18em;color:var(--accent-2)}
.flow__step h3{margin:6px 0 8px;font-size:1.12rem}
.flow__step p{color:var(--text-sub);font-size:.93rem}

.faq{background:var(--bg-2)}
.faq__list{display:grid;gap:14px}
.faq__item{border:1px solid var(--line);border-radius:12px;background:rgba(10,28,52,.6);overflow:hidden}
.faq__item summary{list-style:none;cursor:pointer;position:relative;padding:20px 56px 20px 54px;font-weight:700}
.faq__item summary::-webkit-details-marker{display:none}
.faq__item summary::before{content:"Q";position:absolute;left:20px;top:19px;font-family:var(--font-en);font-weight:800;color:var(--accent)}
.faq__item summary::after{content:"";position:absolute;right:24px;top:50%;width:10px;height:10px;border-right:2px solid var(--accent);border-bottom:2px solid var(--accent);transform:translateY(-70%) rotate(45deg);transition:transform .3s}
.faq__item[open] summary::after{transform:translateY(-30%) rotate(-135deg)}
.faq__item p{padding:0 24px 22px 54px;color:var(--text-sub);font-size:.95rem}

.info{border-top:1px solid var(--line)}
.info__row{display:grid;grid-template-columns:180px 1fr;border-bottom:1px solid var(--line)}
.info dt{padding:20px 16px;font-weight:700;color:#bfe8ff}
.info dd{padding:20px 16px;color:var(--text)}
.info dd a{color:var(--accent);text-decoration:underline;text-underline-offset:3px;word-break:break-all}

.contact{padding-top:40px}
.contact__box{text-align:center;padding:64px 40px;border-radius:22px;border:1px solid var(--line-strong);background:radial-gradient(ellipse 70% 90% at 50% 0%,rgba(56,189,248,.18),transparent 70%),linear-gradient(160deg,#0f2a50,#081830)}
.contact__text{margin-top:16px;color:var(--text-sub)}
.contact__actions{display:grid;grid-template-columns:repeat(2,minmax(0,340px));justify-content:center;gap:18px;margin-top:36px}
.contact__btn{display:flex;align-items:center;gap:16px;padding:20px 24px;text-align:left;border-radius:14px;border:1px solid var(--line-strong);background:rgba(6,16,31,.6);font-family:var(--font-en);font-weight:700;font-size:1.15rem;transition:transform .2s,background .2s}
.contact__btn:hover{transform:translateY(-2px);background:rgba(56,189,248,.12)}
.contact__btn svg{flex-shrink:0;width:30px;height:30px}
.contact__btn small{display:block;font-family:var(--font-ja);font-size:.78rem;font-weight:500;color:var(--text-sub)}
.contact__btn span{min-width:0;word-break:break-all}

.footer{margin-top:100px;padding:48px 0 36px;border-top:1px solid var(--line);background:#040b16}
.footer__inner{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px}
.footer__addr{color:var(--text-sub);font-size:.86rem;line-height:1.7}
.footer__copy{width:100%;text-align:center;margin-top:20px;color:#6b819b;font-size:.8rem;font-family:var(--font-en)}

.totop{position:fixed;right:20px;bottom:20px;width:48px;height:48px;display:grid;place-items:center;border-radius:50%;border:1px solid var(--line-strong);background:rgba(6,16,31,.85);opacity:0;pointer-events:none;transition:opacity .3s;z-index:90}
.totop.is-show{opacity:1;pointer-events:auto}

/* reveal */
.js .reveal{opacity:0;transform:translateY(24px);transition:opacity .8s ease,transform .8s ease}
.js .reveal.is-in{opacity:1;transform:none}
.no-js .reveal{opacity:1;transform:none}

/* ---- tablet ---- */
@media (max-width:1000px){
  .cards{grid-template-columns:repeat(2,1fr)}
  .flow__list{grid-template-columns:repeat(2,1fr)}
  .hero__inner{grid-template-columns:1fr;text-align:left}
  .hero__visual{order:-1;max-width:340px;margin:0 auto -10px}
}
@media (max-width:860px){
  .nav-toggle{display:block}
  .gnav{position:fixed;top:var(--header-h);left:0;right:0;background:rgba(6,16,31,.97);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--line);transform:translateY(-12px);opacity:0;visibility:hidden;transition:.3s}
  .gnav.is-open{transform:none;opacity:1;visibility:visible}
  .header:has(.gnav.is-open){background:rgba(6,16,31,.97)}
  .gnav ul{flex-direction:column;align-items:stretch;gap:0;padding:12px 20px 24px}
  .gnav a{padding:14px 8px;font-size:1rem;border-bottom:1px solid var(--line);border-radius:0}
  .gnav a.gnav__cta{margin:16px 0 0;text-align:center;border-radius:10px;border:none}
  .strength__list{grid-template-columns:1fr}
}
/* ---- smartphone ---- */
@media (max-width:600px){
  body{font-size:15px}
  .pc{display:none}
  .sp{display:inline}
  .container,.header__inner,.hero__inner{padding:0 16px}
  .hero{padding:calc(var(--header-h) + 16px) 0 64px;min-height:auto}
  .hero__visual{max-width:220px}
  .hero__lead{font-size:1.45rem;margin-top:20px}
  .badge{font-size:.78rem;padding:6px 14px}
  .hero__title{margin-top:16px}
  .chips{gap:8px}
  .chips li{font-size:.8rem;padding:5px 10px}
  .hero__actions{flex-direction:column}
  .btn{width:100%}
  .section{padding:76px 0}
  .section__head{margin-bottom:36px}
  .cards,.flow__list{grid-template-columns:1fr;gap:16px}
  .card{padding:26px 22px}
  .strength__item{padding:24px 20px;gap:16px}
  .strength__num{font-size:1.9rem}
  .info__row{grid-template-columns:1fr}
  .info dt{padding:16px 4px 0;font-size:.85rem}
  .info dd{padding:4px 4px 16px}
  .faq__item summary{padding:18px 44px 18px 44px;font-size:.95rem}
  .faq__item summary::before{left:16px;top:17px}
  .faq__item summary::after{right:18px}
  .faq__item p{padding:0 18px 20px 44px}
  .contact__box{padding:44px 20px;border-radius:18px}
  .contact__actions{grid-template-columns:1fr}
  .contact__btn{font-size:1.05rem;padding:18px}
  .footer{margin-top:72px}
  .footer__inner{flex-direction:column;text-align:center}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
  .tree__lines line{stroke-dashoffset:0}
  html{scroll-behavior:auto}
}