@charset "utf-8";
/* ==========================================================================
   AI Lens — corporate site
   Brand: #6366F1 / #60A5FA / #F472B6 / #E0E7FF / ink #0F172A
   ========================================================================== */

/* ---------- tokens ---------- */
:root{
  --indigo:#6366F1;
  --indigo-d:#4F46E5;
  --blue:#60A5FA;
  --pink:#F472B6;
  --lav:#E0E7FF;
  --ink:#0F172A;
  --ink-2:#334155;
  --ink-3:#64748B;
  --line:#E6E9F5;
  --bg:#FFFFFF;
  --bg-soft:#F6F7FD;
  --bg-tint:#EEF1FC;

  --grad-brand:linear-gradient(120deg,#7C8CF8 0%,#8B7DF2 42%,#C79AE8 70%,#F9A0C4 100%);
  --grad-soft:linear-gradient(135deg,#F3F5FE 0%,#EDF0FD 45%,#F7F0FA 100%);

  --shadow-s:0 1px 2px rgba(15,23,42,.04), 0 4px 14px rgba(79,70,229,.05);
  --shadow-m:0 2px 6px rgba(15,23,42,.05), 0 18px 48px rgba(79,70,229,.09);

  --r-s:12px;
  --r-m:18px;
  --r-l:26px;

  --wrap:1160px;
  --header-h:74px;

  --font:"Noto Sans JP",-apple-system,BlinkMacSystemFont,"Hiragino Sans","Yu Gothic UI","Meiryo",sans-serif;
}

/* ---------- reset ---------- */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:var(--header-h);}
body{
  margin:0;
  font-family:var(--font);
  font-weight:400;
  font-size:16px;
  line-height:1.9;
  color:var(--ink-2);
  background:var(--bg);
  letter-spacing:.02em;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img,svg{max-width:100%;height:auto;display:block;}
a{color:var(--indigo-d);text-decoration:none;transition:color .2s,opacity .2s;}
a:hover{color:var(--indigo);}
h1,h2,h3,h4{color:var(--ink);font-weight:500;line-height:1.55;letter-spacing:.01em;margin:0;}
p{margin:0 0 1.2em;}
ul,ol{margin:0;padding:0;list-style:none;}
strong{font-weight:700;color:var(--ink);}
table{border-collapse:collapse;width:100%;}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}

:focus-visible{outline:2px solid var(--indigo);outline-offset:3px;border-radius:4px;}

.skip{
  position:absolute;left:-9999px;top:0;z-index:200;
  background:var(--ink);color:#fff;padding:12px 20px;border-radius:0 0 8px 0;
}
.skip:focus{left:0;color:#fff;}

.wrap{width:100%;max-width:var(--wrap);margin-inline:auto;padding-inline:28px;}
.wrap.narrow{max-width:840px;}
.pc{display:inline;}

/* ==========================================================================
   header
   ========================================================================== */
.site-header{
  position:fixed;inset:0 0 auto 0;z-index:100;
  height:var(--header-h);
  background:rgba(255,255,255,.72);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid transparent;
  transition:background .3s,border-color .3s,box-shadow .3s;
}
.site-header.is-scrolled{
  background:rgba(255,255,255,.92);
  border-bottom-color:var(--line);
  box-shadow:0 2px 20px rgba(15,23,42,.04);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:var(--header-h);}

.brand{display:inline-flex;align-items:center;gap:10px;color:var(--ink);}
.brand:hover{color:var(--ink);opacity:.75;}
.brand-mark{width:34px;height:34px;flex:none;}
.brand-mark img{width:100%;height:100%;}
.brand-name{font-size:19px;font-weight:500;letter-spacing:.04em;}

.nav{display:flex;align-items:center;gap:34px;}
.nav a{
  position:relative;
  font-size:13px;font-weight:500;letter-spacing:.11em;
  color:var(--ink-2);
}
.nav a:not(.nav-cta)::after{
  content:"";position:absolute;left:0;bottom:-7px;
  width:100%;height:1.5px;background:var(--grad-brand);
  transform:scaleX(0);transform-origin:right;transition:transform .3s ease;
}
.nav a:not(.nav-cta):hover::after{transform:scaleX(1);transform-origin:left;}
.nav .nav-cta{
  padding:9px 20px;border-radius:999px;
  background:var(--grad-brand);color:#fff;
  box-shadow:0 4px 14px rgba(99,102,241,.28);
}
.nav .nav-cta:hover{color:#fff;opacity:.9;}

.nav-toggle{display:none;width:44px;height:44px;position:relative;margin-right:-10px;}
.nav-toggle span{
  position:absolute;left:12px;width:20px;height:1.6px;background:var(--ink);
  transition:transform .3s,opacity .2s;
}
.nav-toggle span:nth-child(1){top:16px;}
.nav-toggle span:nth-child(2){top:21.5px;}
.nav-toggle span:nth-child(3){top:27px;}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(5.5px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-5.5px) rotate(-45deg);}

/* ==========================================================================
   hero
   ========================================================================== */
.hero{
  position:relative;
  min-height:min(100svh,880px);
  display:flex;align-items:center;
  padding:calc(var(--header-h) + 60px) 0 110px;
  background:var(--grad-soft);
  overflow:hidden;
}
.hero-bloom{
  position:absolute;inset:-30% -10% auto -10%;height:120%;
  background:
    radial-gradient(38% 46% at 22% 34%, rgba(124,140,248,.34) 0%, rgba(124,140,248,0) 68%),
    radial-gradient(34% 40% at 74% 22%, rgba(96,165,250,.26) 0%, rgba(96,165,250,0) 70%),
    radial-gradient(40% 44% at 62% 78%, rgba(244,114,182,.22) 0%, rgba(244,114,182,0) 70%);
  filter:blur(6px);
  animation:drift 22s ease-in-out infinite alternate;
}
@keyframes drift{
  from{transform:translate3d(0,0,0) scale(1);}
  to{transform:translate3d(-3%,2%,0) scale(1.08);}
}
.hero-grid{
  position:absolute;inset:0;
  background-image:
    linear-gradient(rgba(99,102,241,.055) 1px,transparent 1px),
    linear-gradient(90deg,rgba(99,102,241,.055) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(70% 60% at 50% 45%,#000 20%,transparent 100%);
  -webkit-mask-image:radial-gradient(70% 60% at 50% 45%,#000 20%,transparent 100%);
}
.hero-inner{position:relative;z-index:2;}

.hero-lockup{display:flex;align-items:center;gap:22px;margin-bottom:34px;}
.hero-mark{
  width:clamp(96px,13vw,190px);height:auto;flex:none;
  filter:drop-shadow(0 14px 34px rgba(99,102,241,.26));
  animation:float 7s ease-in-out infinite;
}
@keyframes float{0%,100%{transform:translateY(0);}50%{transform:translateY(-9px);}}
.hero-wordmark{
  font-size:clamp(46px,8.4vw,116px);
  font-weight:300;letter-spacing:.005em;line-height:1;
  color:var(--ink);
}

.hero-lead{
  font-size:clamp(21px,3.1vw,38px);
  font-weight:500;line-height:1.65;color:var(--ink);
  margin:0 0 22px;
}
.hero-sub{
  font-size:clamp(14px,1.35vw,16.5px);
  color:var(--ink-3);max-width:38em;margin-bottom:38px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;}

.scroll-hint{
  position:absolute;left:50%;bottom:34px;transform:translateX(-50%);
  z-index:2;display:flex;flex-direction:column;align-items:center;gap:10px;
  font-size:10px;letter-spacing:.22em;color:var(--ink-3);
}
.scroll-hint i{display:block;width:1px;height:52px;background:linear-gradient(var(--indigo),transparent);}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:10px;
  padding:14px 30px;border-radius:999px;
  font-size:14.5px;font-weight:500;letter-spacing:.04em;
  transition:transform .25s,box-shadow .25s,background .25s,color .25s;
}
.btn span{transition:transform .25s;}
.btn:hover span{transform:translateX(4px);}
.btn-primary{
  background:var(--grad-brand);color:#fff;
  box-shadow:0 8px 24px rgba(99,102,241,.3);
}
.btn-primary:hover{color:#fff;transform:translateY(-2px);box-shadow:0 12px 30px rgba(99,102,241,.38);}
.btn-ghost{background:rgba(255,255,255,.7);color:var(--ink);border:1px solid var(--line);}
.btn-ghost:hover{color:var(--ink);background:#fff;transform:translateY(-2px);box-shadow:var(--shadow-s);}
.btn-lg{padding:17px 40px;font-size:15.5px;}

/* ==========================================================================
   sections
   ========================================================================== */
.section{padding:clamp(76px,9vw,132px) 0;position:relative;}
.section.soft{background:var(--bg-soft);}

.eyebrow{
  font-size:11.5px;font-weight:500;letter-spacing:.24em;
  color:var(--indigo);margin:0 0 16px;
}
.h2{
  font-size:clamp(25px,3.5vw,40px);
  font-weight:500;line-height:1.5;margin:0 0 26px;
  text-wrap:balance;           /* 句点だけが行末に落ちるのを防ぐ */
  line-break:strict;
}
.lead{font-size:clamp(15px,1.4vw,17px);max-width:44em;margin-bottom:0;}
.note{
  margin-top:26px;padding:18px 22px;border-radius:var(--r-s);
  background:var(--bg-tint);font-size:14.5px;line-height:1.85;
}
.fineprint{margin-top:28px;font-size:13px;color:var(--ink-3);line-height:1.85;}

/* ---------- mission ---------- */
.mission .lead{margin-bottom:56px;}
.value-list{display:grid;gap:34px;grid-template-columns:repeat(3,1fr);}
.value h3{font-size:17px;margin:0 0 10px;}
.value p{font-size:14px;color:var(--ink-3);margin:0;line-height:1.9;}
.value-icon{
  display:grid;place-items:center;width:46px;height:46px;margin-bottom:18px;
  border-radius:13px;background:var(--bg-tint);color:var(--indigo);
}
.value-icon svg{width:23px;height:23px;stroke-linecap:round;stroke-linejoin:round;}

/* ---------- split ---------- */
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(40px,6vw,88px);align-items:center;}
.split.reverse .split-body{order:2;}
.split.reverse .split-visual{order:1;}
.split-body p{font-size:15.5px;}
.split-body p:last-of-type{margin-bottom:0;}

.split-visual{display:grid;place-items:center;}
.orb{
  position:relative;width:min(100%,380px);aspect-ratio:1;
  display:grid;place-items:center;border-radius:50%;
  background:radial-gradient(circle at 34% 30%,rgba(255,255,255,.95),rgba(224,231,255,.5) 55%,rgba(244,114,182,.16) 100%);
  box-shadow:inset 0 0 60px rgba(255,255,255,.9),0 30px 70px rgba(99,102,241,.16);
}
.orb::after{
  content:"";position:absolute;inset:-6%;border-radius:50%;
  background:conic-gradient(from 200deg,rgba(124,140,248,.22),rgba(244,160,196,.22),rgba(96,165,250,.22),rgba(124,140,248,.22));
  filter:blur(28px);z-index:-1;
  animation:spin 26s linear infinite;
}
@keyframes spin{to{transform:rotate(360deg);}}
.orb img{width:52%;filter:drop-shadow(0 12px 30px rgba(99,102,241,.22));animation:float 8s ease-in-out infinite;}
.soft-orb{background:radial-gradient(circle at 40% 32%,rgba(255,255,255,.96),rgba(238,241,252,.7) 60%,rgba(124,140,248,.14) 100%);}

/* ---------- vision ---------- */
.vision-card{
  position:relative;overflow:hidden;
  padding:clamp(38px,5vw,68px);
  border-radius:var(--r-l);
  background:var(--grad-soft);
  border:1px solid var(--line);
}
.vision-card::before{
  content:"";position:absolute;right:-12%;top:-40%;width:60%;aspect-ratio:1;border-radius:50%;
  background:radial-gradient(circle,rgba(244,114,182,.20),transparent 65%);
}
.vision-card > *{position:relative;}
.vision-card p{max-width:46em;margin-bottom:0;font-size:15.5px;}

/* ---------- service cards ---------- */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;margin-top:52px;}
.card{
  position:relative;
  padding:38px 32px 34px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-m);
  box-shadow:var(--shadow-s);
  transition:transform .3s,box-shadow .3s,border-color .3s;
}
.card:hover{transform:translateY(-6px);box-shadow:var(--shadow-m);border-color:#D8DEF7;}
.card-no{
  position:absolute;top:26px;right:30px;
  font-size:13px;font-weight:700;letter-spacing:.08em;
  background:var(--grad-brand);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.card-icon{
  display:grid;place-items:center;width:52px;height:52px;margin-bottom:22px;
  border-radius:15px;background:var(--bg-tint);color:var(--indigo);
}
.card-icon svg{width:25px;height:25px;stroke-linecap:round;stroke-linejoin:round;}
.card h3{font-size:18px;margin:0 0 14px;text-wrap:balance;}
.card > p{font-size:14px;color:var(--ink-3);line-height:1.9;margin-bottom:20px;}
.card ul{border-top:1px solid var(--line);padding-top:18px;}
.card li{
  position:relative;padding-left:20px;font-size:13.5px;color:var(--ink-2);line-height:2.1;
}
.card li::before{
  content:"";position:absolute;left:2px;top:14px;
  width:7px;height:7px;border-radius:50%;background:var(--grad-brand);
}

/* ---------- features ---------- */
.feature-list{display:grid;gap:30px;margin-top:8px;}
.feature-list li{display:grid;grid-template-columns:auto 1fr;gap:20px;align-items:start;}
.feat-no{
  font-size:22px;font-weight:700;line-height:1.3;letter-spacing:.02em;
  background:var(--grad-brand);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.feature-list h3{font-size:16.5px;margin:0 0 8px;}
.feature-list p{font-size:14px;color:var(--ink-3);margin:0;line-height:1.9;}

/* ---------- process ---------- */
.process{
  display:grid;grid-template-columns:repeat(4,1fr);gap:22px;margin-top:52px;
  counter-reset:step;
}
.process li{
  position:relative;text-align:center;
  padding:36px 22px 30px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-m);
}
.process li:not(:last-child)::after{
  content:"";position:absolute;top:50%;right:-15px;z-index:2;
  width:8px;height:8px;border-top:1.5px solid #C3CAE8;border-right:1.5px solid #C3CAE8;
  transform:translateY(-50%) rotate(45deg);
}
.proc-icon{
  display:grid;place-items:center;width:56px;height:56px;margin:0 auto 18px;
  border-radius:50%;background:var(--bg-tint);color:var(--indigo);
}
.proc-icon svg{width:26px;height:26px;stroke-linecap:round;stroke-linejoin:round;}
.process h3{font-size:15.5px;margin:0 0 10px;}
.process p{font-size:13px;color:var(--ink-3);margin:0;line-height:1.85;}

/* ---------- faq ---------- */
.faq{margin-top:44px;border-top:1px solid var(--line);}
.faq details{border-bottom:1px solid var(--line);}
.faq summary{
  list-style:none;cursor:pointer;position:relative;
  padding:24px 48px 24px 0;
  font-size:16px;font-weight:500;color:var(--ink);line-height:1.7;
  transition:color .2s;
}
.faq summary::-webkit-details-marker{display:none;}
.faq summary:hover{color:var(--indigo-d);}
.faq summary::after{
  content:"";position:absolute;right:8px;top:34px;
  width:10px;height:10px;border-right:1.6px solid var(--indigo);border-bottom:1.6px solid var(--indigo);
  transform:translateY(-50%) rotate(45deg);transition:transform .3s;
}
.faq details[open] summary::after{transform:translateY(-50%) rotate(-135deg);}
.faq details p{
  margin:0;padding:0 0 26px;
  font-size:14.5px;color:var(--ink-3);line-height:2;
}

/* ---------- company table ---------- */
.table-wrap{margin-top:44px;overflow-x:auto;}
.info-table{min-width:520px;background:#fff;border:1px solid var(--line);border-radius:var(--r-m);overflow:hidden;}
.info-table th,.info-table td{
  padding:20px 26px;text-align:left;vertical-align:top;
  border-bottom:1px solid var(--line);font-size:14.5px;line-height:1.9;
}
.info-table tr:last-child th,.info-table tr:last-child td{border-bottom:0;}
.info-table th{
  width:200px;font-weight:500;color:var(--ink);background:var(--bg-soft);
  white-space:nowrap;
}

/* ---------- contact ---------- */
.contact{padding-bottom:clamp(90px,10vw,150px);}
.contact-card{
  position:relative;overflow:hidden;text-align:center;
  padding:clamp(48px,6vw,86px) clamp(28px,5vw,64px);
  border-radius:var(--r-l);
  background:var(--grad-soft);
  border:1px solid var(--line);
}
.contact-card::before,.contact-card::after{
  content:"";position:absolute;width:46%;aspect-ratio:1;border-radius:50%;
}
.contact-card::before{left:-14%;bottom:-34%;background:radial-gradient(circle,rgba(124,140,248,.24),transparent 66%);}
.contact-card::after{right:-12%;top:-32%;background:radial-gradient(circle,rgba(244,114,182,.20),transparent 66%);}
.contact-card > *{position:relative;}
.contact-card p{max-width:40em;margin-inline:auto;font-size:15.5px;}
.contact-card .btn{margin-top:14px;}
.contact-card .fineprint{margin-top:22px;}

/* ==========================================================================
   footer
   ========================================================================== */
.site-footer{background:var(--ink);color:#94A3B8;padding:70px 0 0;}
.footer-inner{display:grid;grid-template-columns:auto 1fr;gap:16px 40px;align-items:center;}
.footer-brand{color:#fff;}
.footer-brand:hover{color:#fff;}
.footer-brand .brand-name{color:#fff;}
.footer-tag{grid-column:1;margin:0;font-size:13px;color:#94A3B8;}
.footer-nav{grid-column:2;grid-row:1 / span 2;display:flex;flex-wrap:wrap;gap:12px 30px;justify-content:flex-end;}
.footer-nav a{font-size:12px;letter-spacing:.11em;color:#CBD5E1;}
.footer-nav a:hover{color:#fff;}
.footer-bottom{
  margin-top:52px;padding-block:24px;
  border-top:1px solid rgba(255,255,255,.1);
}
.footer-bottom small{font-size:12px;color:#64748B;letter-spacing:.04em;}

/* ==========================================================================
   scroll reveal
   ========================================================================== */
/* デフォルトは可視。JSが動いたときだけ隠してからフェードインさせる。
   （JS無効・JSエラー時に本文が読めなくなるのを防ぐ） */
.js .reveal{opacity:0;transform:translateY(22px);transition:opacity .8s ease,transform .8s cubic-bezier(.2,.7,.3,1);}
.js .reveal.is-in{opacity:1;transform:none;}
.js .reveal:nth-child(2){transition-delay:.06s;}
.js .reveal:nth-child(3){transition-delay:.12s;}
.js .reveal:nth-child(4){transition-delay:.18s;}

/* ==========================================================================
   responsive
   ========================================================================== */
@media (max-width:960px){
  .value-list,.cards{grid-template-columns:1fr 1fr;}
  .process{grid-template-columns:1fr 1fr;}
  .process li:nth-child(2)::after{display:none;}
  .split,.split.reverse{grid-template-columns:1fr;gap:46px;}
  .split.reverse .split-body{order:1;}
  .split.reverse .split-visual{order:2;}
  .split-visual{order:2;}
  .orb{width:min(74%,320px);}
}

@media (max-width:768px){
  :root{--header-h:64px;}
  .wrap{padding-inline:22px;}
  .pc{display:none;}

  .nav-toggle{display:block;}
  .nav{
    position:fixed;inset:var(--header-h) 0 auto 0;
    flex-direction:column;align-items:stretch;gap:0;
    padding:14px 22px 26px;
    background:rgba(255,255,255,.97);
    backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
    border-bottom:1px solid var(--line);
    box-shadow:0 18px 40px rgba(15,23,42,.08);
    transform:translateY(-14px);opacity:0;pointer-events:none;
    transition:transform .3s,opacity .3s;
  }
  .nav.is-open{transform:none;opacity:1;pointer-events:auto;}
  .nav a{padding:15px 4px;font-size:14px;border-bottom:1px solid var(--line);}
  .nav a:not(.nav-cta)::after{display:none;}
  .nav .nav-cta{
    margin-top:18px;border-bottom:0;text-align:center;
    padding:14px 20px;
  }

  .hero{min-height:auto;padding:calc(var(--header-h) + 56px) 0 96px;}
  .hero-lockup{gap:14px;margin-bottom:26px;}
  .hero-actions .btn{flex:1 1 auto;justify-content:center;}
  .scroll-hint{display:none;}

  .value-list,.cards,.process{grid-template-columns:1fr;}
  .process li::after{display:none;}
  .value-list{gap:30px;}

  .footer-inner{grid-template-columns:1fr;}
  .footer-nav{grid-column:1;grid-row:auto;justify-content:flex-start;margin-top:14px;}
  .info-table th{width:130px;}
}

@media (max-width:420px){
  .hero-lockup{flex-direction:column;align-items:flex-start;gap:6px;}
}

/* ==========================================================================
   a11y / print
   ========================================================================== */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{animation:none!important;transition-duration:.01ms!important;}
  .js .reveal{opacity:1;transform:none;}
}

@media print{
  .site-header,.scroll-hint,.hero-bloom,.hero-grid{display:none;}
  body{color:#000;}
  .js .reveal{opacity:1;transform:none;}
}