/* ================================================
   かんたんAIサポート — Service Intro Video v3
   24 cuts · 32s · LP v2 design language
   ================================================ */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}

:root{
  --bg:#F6F4EE;--bg-alt:#EDEAE2;--bg-warm:#F2EDE4;
  --white:#FFFFFF;
  --text:#14232D;--text-sub:#4A5B68;--text-mute:#8A9BA8;
  --primary:#155767;--primary-l:#1B6E82;--primary-bg:#E6F0F3;
  --accent:#E99A45;--accent-h:#D4872E;
  --border:#D9DFDB;--border-l:#E8ECE9;
  --success:#1A7A4A;--success-bg:#E0F3EA;
  --danger:#C62828;--danger-bg:#FCE8E6;
  --radius:12px;--radius-lg:18px;
  --font:'Noto Sans JP','Inter','Hiragino Kaku Gothic ProN',sans-serif;
  --font-en:'Inter','Noto Sans JP',sans-serif;
}

html{background:var(--bg)}
body{
  font-family:var(--font);font-size:15px;line-height:1.7;
  color:var(--text);-webkit-font-smoothing:antialiased;
  overflow:hidden;height:100vh;width:100vw;
  margin:0;padding:0;
  display:flex;align-items:center;justify-content:center;
}

/* ── Stage ── */
.stage{
  position:relative;width:100%;height:100%;
  overflow:hidden;
  background:var(--bg);
}

/* ── Cuts ── */
.cut{
  position:absolute;inset:0;
  display:flex;align-items:center;justify-content:center;
  flex-direction:column;
  opacity:0;pointer-events:none;z-index:1;
  transition:opacity .35s ease;
  background:
    radial-gradient(ellipse at 70% 25%,rgba(21,87,103,.04) 0%,transparent 55%),
    linear-gradient(165deg,#F6F4EE 0%,#EAF3F0 40%,#F6F4EE 100%);
}
.cut::before{
  content:'';position:absolute;inset:0;
  background-image:radial-gradient(circle,rgba(21,87,103,.025) 1px,transparent 1px);
  background-size:28px 28px;pointer-events:none;
  mask-image:radial-gradient(ellipse at 55% 45%,black 25%,transparent 70%);
  -webkit-mask-image:radial-gradient(ellipse at 55% 45%,black 25%,transparent 70%);
}
.cut.active{opacity:1;pointer-events:auto;z-index:2}

/* Variant backgrounds */
.cut--dim{
  background:linear-gradient(180deg,#EDEBE6 0%,#E5E2DC 100%);
}
.cut--warm{
  background:linear-gradient(180deg,var(--bg) 0%,var(--bg-warm) 50%,var(--bg) 100%);
}
.cut--cta{
  background:linear-gradient(135deg,var(--primary) 0%,#1B6E82 60%,#1A7A8A 100%);
}
.cut--cta::before{
  background-image:radial-gradient(circle,rgba(255,255,255,.025) 1px,transparent 1px);
  background-size:24px 24px;
}

/* ── Glow effects ── */
.glow{
  position:absolute;border-radius:50%;pointer-events:none;
  background:radial-gradient(circle,rgba(21,87,103,.06) 0%,transparent 65%);
}
.glow-tr{width:420px;height:420px;top:-80px;right:-40px}
.glow-center{
  width:360px;height:360px;top:50%;left:50%;
  transform:translate(-50%,-50%);
  background:radial-gradient(circle,rgba(21,87,103,.05) 0%,transparent 60%);
}

/* ── Animation primitives ── */
.a{opacity:0;transition:opacity .4s ease,transform .4s ease}
.cut.active .a.v{opacity:1;transform:translate(0,0) scale(1) rotate(0deg)}

.a-up{transform:translateY(28px)}
.a-scale{transform:scale(.85) translateY(12px)}
.a-fade{transform:none}
.a-slide-l{transform:translateX(-44px)}
.a-slide-r{transform:translateX(44px)}
.a-pop{transform:translateY(24px) scale(.8)}
.a-scatter{transform:translate(var(--sx,0),var(--sy,0)) rotate(var(--sr,0deg)) scale(.85)}
.a-morph{transform:translateY(20px)}

.d1{transition-delay:.15s}
.d2{transition-delay:.3s}
.d3{transition-delay:.45s}
.d4{transition-delay:.6s}

/* Reduced motion */
@media(prefers-reduced-motion:reduce){
  .a,.cut{transition:opacity .2s ease !important;transform:none !important}
  .a-up,.a-scale,.a-fade,.a-slide-l,.a-slide-r,.a-pop,.a-scatter,.a-morph{transform:none !important}
  .tl-line,.tl-node,.tl-text,.tl-loop,.tl-loop2{
    stroke-dasharray:none !important;stroke-dashoffset:0 !important;
    opacity:1 !important;animation:none !important;
  }
}

/* ── Typography ── */
.xl{font-size:34px;font-weight:800;line-height:1.5;letter-spacing:-.01em;text-align:center}
.lg{font-size:24px;font-weight:700;line-height:1.55;text-align:center}
.md{font-size:18px;font-weight:600;line-height:1.6;text-align:center}
.sm{font-size:14px;font-weight:500;line-height:1.7}
.muted{color:var(--text-mute)}
.xl-w,.lg-w{color:#fff}
.xl-w{font-size:34px;font-weight:800;line-height:1.5;text-align:center}
.lg-w{font-size:22px;font-weight:600;line-height:1.6;color:rgba(255,255,255,.7);text-align:center}

.center-text{
  position:relative;z-index:1;
  display:flex;flex-direction:column;align-items:center;gap:6px;
  padding:0 60px;
}

/* ── Labels ── */
.label-center{
  font-size:26px;font-weight:800;color:var(--text);
  text-align:center;margin-bottom:16px;
  position:relative;z-index:1;
}
.scene-label{
  position:absolute;top:20px;left:50%;transform:translateX(-50%);
  font-size:11px;font-weight:700;color:var(--text-mute);
  letter-spacing:.06em;opacity:.5;z-index:1;
}
.demo-label{
  position:absolute;bottom:16px;right:24px;
  font-size:10px;font-weight:700;color:var(--text-mute);
  background:var(--bg-alt);padding:2px 10px;border-radius:6px;
  letter-spacing:.04em;z-index:1;
}

/* ── Background icons ── */
.bg-icons{position:absolute;inset:0;pointer-events:none}
.bg-icon{
  position:absolute;font-size:36px;opacity:.12;
  top:30%;left:25%;
}

/* ================================================
   SCENE 2 — Split views, memo, templates
   ================================================ */
.split-view{
  display:flex;align-items:center;gap:20px;
  padding:0 60px;position:relative;z-index:1;
  width:100%;max-width:680px;
}
.split-left,.split-right{flex:1}
.split-arrow{font-size:28px;color:var(--text-mute);font-weight:300;flex-shrink:0}

.memo-block{
  background:var(--white);border:1px solid var(--border);
  border-radius:var(--radius);padding:16px 18px;
  box-shadow:0 2px 12px rgba(20,35,45,.05);
}
.memo-line{
  font-size:13px;color:var(--text-sub);
  padding:3px 0;border-bottom:1px dashed var(--border-l);
  font-style:italic;
}
.memo-line:last-child{border-bottom:none}

.template-block{
  background:var(--white);border:1px solid var(--border);
  border-radius:var(--radius);padding:10px 14px;
  box-shadow:0 2px 12px rgba(20,35,45,.05);
}
.tpl-row{
  display:flex;align-items:center;gap:8px;
  padding:6px 0;border-bottom:1px solid var(--border-l);
  font-size:12px;
}
.tpl-row:last-child{border-bottom:none}
.tpl-label{font-weight:700;color:var(--text-mute);width:60px;flex-shrink:0;font-size:10px;letter-spacing:.03em}
.tpl-empty{flex:1;height:14px;background:var(--bg-alt);border-radius:4px}

/* ── Mail UI ── */
.morph-area{padding:0 80px;width:100%;position:relative;z-index:1}
.mail-ui{
  background:var(--white);border:1px solid var(--border);
  border-radius:var(--radius);overflow:hidden;
  box-shadow:0 2px 12px rgba(20,35,45,.05);
  max-width:420px;margin:0 auto;
}
.mail-ui.small-ui{max-width:200px}
.mail-header{
  background:var(--bg-alt);padding:10px 14px;
  border-bottom:1px solid var(--border-l);
  display:flex;flex-direction:column;gap:2px;
}
.mail-to,.mail-subj{font-size:11px;color:var(--text-mute)}
.mail-body{padding:14px;font-size:12px;color:var(--text-sub);line-height:1.8}

/* ── Excel grid ── */
.excel-grid{
  background:var(--white);border:1px solid var(--border);
  border-radius:var(--radius);overflow:hidden;
  box-shadow:0 2px 12px rgba(20,35,45,.05);
}
.xr{
  display:grid;grid-template-columns:1fr 1fr .7fr;
  border-bottom:1px solid var(--border-l);
  font-size:11px;color:var(--text-sub);
}
.xr:last-child{border-bottom:none}
.xr span{padding:7px 10px}
.xr-head{background:var(--bg-alt);font-weight:700;color:var(--text-mute);font-size:10px}
.xr-sum{background:var(--primary-bg);color:var(--primary);font-weight:700}

/* ── Scatter ── */
.scatter-area,.pm-before{
  display:flex;flex-wrap:wrap;gap:14px;justify-content:center;
  position:relative;z-index:1;max-width:480px;
}
.photo-card,.pm-card{
  width:64px;height:64px;border-radius:10px;
  background:var(--white);border:1px solid var(--border);
  box-shadow:0 2px 10px rgba(20,35,45,.05);
  display:flex;align-items:center;justify-content:center;
  font-size:24px;
}

/* ── Scene 3 — Three steps ── */
.three-steps{
  display:flex;gap:28px;align-items:center;justify-content:center;
  position:relative;z-index:1;
}
.tstep{
  text-align:center;padding:18px 22px;
  background:var(--white);border:1px solid var(--border);
  border-radius:var(--radius);min-width:110px;
  box-shadow:0 2px 12px rgba(20,35,45,.05);
}
.tstep-icon{font-size:26px;margin-bottom:6px}
.tstep p{font-size:14px;font-weight:700;color:var(--text-sub)}

/* ================================================
   SCENE 4 — Solution split
   ================================================ */
.solution-split{
  display:flex;align-items:center;gap:24px;
  padding:0 60px;position:relative;z-index:1;
  width:100%;max-width:720px;
}
.sol-left,.sol-right{flex:1;text-align:center}
.sol-label{font-size:15px;font-weight:700;color:var(--text);margin-bottom:12px}
.sol-bubbles{display:flex;flex-direction:column;gap:6px;align-items:center}
.sol-bubble{
  display:inline-block;padding:8px 16px;border-radius:16px;
  background:var(--bg-alt);font-size:13px;color:var(--text-sub);
  border:1px solid var(--border-l);
}
.sol-arrow{font-size:32px;color:var(--primary);font-weight:300;flex-shrink:0}
.sol-ui{
  background:var(--white);border:1px solid var(--border);
  border-radius:var(--radius);padding:20px;
  box-shadow:0 3px 14px rgba(20,35,45,.06);
  display:flex;flex-direction:column;gap:8px;
  max-width:200px;margin:0 auto;
}
.sol-ui-field{height:12px;background:var(--bg-alt);border-radius:4px}
.sol-ui-field.short{width:60%}
.sol-ui-btn{
  height:28px;background:var(--primary);border-radius:6px;
  margin-top:4px;
}

/* ================================================
   SCENE 5 — Morph demos
   ================================================ */
.morph-demo{
  display:flex;align-items:stretch;gap:24px;
  padding:0 60px;position:relative;z-index:1;
  width:100%;max-width:680px;
}
.morph-before,.morph-after{
  flex:1;background:var(--white);
  border:1px solid var(--border);border-radius:var(--radius);
  padding:16px 18px;
  box-shadow:0 2px 12px rgba(20,35,45,.05);
}
.morph-before{
  font-size:13px;color:var(--text-sub);font-style:italic;
  line-height:1.9;border-left:3px solid var(--accent);
}
.morph-after{border-left:3px solid var(--primary)}
.rpt-row{
  display:flex;gap:8px;align-items:baseline;
  padding:5px 0;border-bottom:1px solid var(--border-l);
  font-size:12px;
}
.rpt-row:last-child{border-bottom:none}
.rpt-l{font-weight:700;color:var(--text-mute);width:50px;font-size:10px;flex-shrink:0}
.rpt-ok{color:var(--success);font-weight:600}

/* Mail morph */
.morph-mail{padding:0;overflow:hidden}
.mm-head{
  background:var(--primary-bg);padding:10px 14px;
  font-size:12px;font-weight:700;color:var(--primary);
  border-bottom:1px solid var(--border-l);
}
.mm-body{padding:14px;font-size:12px;color:var(--text-sub);line-height:1.9}

/* Form morph */
.morph-form{border-left-color:var(--accent);padding:12px 14px}
.mf-row{
  padding:5px 0;border-bottom:1px solid var(--border-l);
  font-size:12px;color:var(--text-mute);font-weight:600;
}
.mf-row:last-child{border-bottom:none}

/* Excel morph */
.morph-excel{padding:0;overflow:hidden;border-left-color:var(--primary)}

/* Photo morph */
.photo-morph{
  display:flex;gap:32px;align-items:center;
  padding:0 60px;position:relative;z-index:1;
  width:100%;max-width:600px;
}
.pm-before{flex:1;min-height:90px}
.pm-after{flex:1;display:flex;flex-direction:column;gap:8px}
.pm-row{
  display:flex;align-items:center;gap:10px;
  padding:10px 14px;border-radius:var(--radius);
  background:var(--white);border:1px solid var(--border);
  box-shadow:0 2px 10px rgba(20,35,45,.04);
}
.pm-tag{font-size:11px;font-weight:700;color:var(--primary);white-space:nowrap}
.pm-items{font-size:16px}

/* Dashboard morph */
.dash-morph{
  display:flex;gap:32px;align-items:center;
  padding:0 60px;position:relative;z-index:1;
  width:100%;max-width:620px;
}
.dm-cards{flex:1;display:flex;flex-wrap:wrap;gap:10px;justify-content:center}
.dm-card{
  padding:12px 18px;border-radius:10px;
  background:var(--white);border:1px solid var(--border);
  box-shadow:0 2px 10px rgba(20,35,45,.05);
  font-size:13px;font-weight:600;color:var(--text-sub);
}
.dm-dash{
  flex:1;background:var(--white);border:1px solid var(--border);
  border-radius:var(--radius);overflow:hidden;
  box-shadow:0 3px 16px rgba(20,35,45,.06);
}
.dm-row{
  display:flex;align-items:center;justify-content:space-between;
  padding:10px 14px;border-bottom:1px solid var(--border-l);
  font-size:13px;color:var(--text);
}
.dm-row:last-child{border-bottom:none}
.dm-badge{
  font-size:10px;font-weight:700;padding:3px 10px;border-radius:10px;
  letter-spacing:.03em;
}
.dm-ok{background:var(--primary-bg);color:var(--primary)}
.dm-done{background:var(--success-bg);color:var(--success)}
.dm-plan{background:var(--bg-alt);color:var(--text-mute)}

/* ================================================
   SCENE 6 — Timeline
   ================================================ */
.timeline{
  position:relative;z-index:1;width:100%;max-width:700px;
  display:flex;justify-content:center;
}
.tl-svg{width:100%;height:auto}

.tl-line{
  stroke:var(--border);stroke-width:2;
  stroke-dasharray:540;stroke-dashoffset:540;
}
.cut.active .tl-line{animation:drawLine 1.8s .2s ease forwards}
@keyframes drawLine{to{stroke-dashoffset:0}}

.tl-node{
  fill:var(--white);stroke:var(--primary);stroke-width:2.5;
  opacity:0;
}
.cut.active .tl-node{animation:nodeIn .3s ease forwards}
.cut.active .n1{animation-delay:.4s}
.cut.active .n2{animation-delay:.9s}
.cut.active .n3{animation-delay:1.3s}
.cut.active .n4{animation-delay:1.7s}
@keyframes nodeIn{to{opacity:1}}

.tl-text{
  font-family:var(--font);font-size:14px;font-weight:700;
  fill:var(--text);text-anchor:middle;
  opacity:0;
}
.cut.active .tl-text{animation:nodeIn .3s ease forwards}
.cut.active .t1{animation-delay:.5s}
.cut.active .t2{animation-delay:1.0s}
.cut.active .t3{animation-delay:1.4s}
.cut.active .t4{animation-delay:1.8s}

.tl-loop{
  fill:none;stroke:var(--accent);stroke-width:1.5;
  stroke-dasharray:200;stroke-dashoffset:200;opacity:.5;
}
.tl-loop2{stroke-dasharray:500;stroke-dashoffset:500}
.cut.active .tl-loop{animation:drawLoop .6s 2.2s ease forwards}
.cut.active .tl-loop2{animation:drawLoop .8s 2.4s ease forwards}
@keyframes drawLoop{to{stroke-dashoffset:0}}

/* ================================================
   SCENE 7 — Profile
   ================================================ */
.profile-layout{
  display:flex;align-items:center;gap:36px;
  padding:0 80px;position:relative;z-index:1;
  width:100%;max-width:680px;
}
.profile-layout--motive{gap:32px}
.prof-photo{
  width:150px;height:150px;border-radius:50%;overflow:hidden;
  flex-shrink:0;
  border:3px solid var(--border-l);
  box-shadow:0 8px 28px rgba(20,35,45,.1);
}
.prof-photo img{width:100%;height:100%;object-fit:cover;display:block}
.prof-photo--work{border-radius:var(--radius-lg);width:240px;height:160px}
.prof-photo--work img{object-position:center top}
.prof-info{display:flex;flex-direction:column;gap:6px}
.prof-name{font-size:26px;font-weight:800;color:var(--text)}
.prof-tags{display:flex;gap:8px;flex-wrap:wrap}
.prof-tag{
  padding:6px 14px;border-radius:10px;
  background:var(--primary-bg);color:var(--primary);
  font-size:13px;font-weight:600;border:1px solid rgba(21,87,103,.1);
}
.prof-direct{
  font-size:13px;font-weight:700;color:var(--primary);
  background:var(--primary-bg);padding:5px 14px;border-radius:8px;
  display:inline-block;margin-top:4px;
}
.prof-motive{display:flex;flex-direction:column;gap:4px}

/* ================================================
   SCENE 8 — CTA
   ================================================ */
.cta-btn{
  display:inline-block;padding:16px 48px;border-radius:12px;
  background:var(--accent);color:var(--white);
  font-size:18px;font-weight:700;
  box-shadow:0 6px 24px rgba(233,154,69,.3);
}
.cut--cta.active .cta-btn.v{animation:ctaGlow 1.8s .5s ease-in-out infinite}
@keyframes ctaGlow{
  0%,100%{box-shadow:0 6px 24px rgba(233,154,69,.3)}
  50%{box-shadow:0 6px 40px rgba(233,154,69,.55),0 0 56px rgba(233,154,69,.12)}
}
.cta-note{font-size:12px;color:rgba(255,255,255,.4);margin-top:12px;text-align:center}

.end-brand{font-size:24px;font-weight:800;color:var(--white);text-align:center}
.end-name{font-size:16px;color:rgba(255,255,255,.55);text-align:center;margin-top:4px}
.end-tag{font-size:13px;color:rgba(255,255,255,.35);text-align:center;margin-top:10px}

/* ================================================
   CONTROLS
   ================================================ */
.controls{
  display:flex;align-items:center;gap:12px;
  background:rgba(255,255,255,.85);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  padding:8px 18px;border-radius:22px;
  border:1px solid rgba(217,223,219,.5);
  box-shadow:0 2px 10px rgba(20,35,45,.06);
  transition:opacity .3s,transform .3s;
}
.controls.hidden{opacity:0;pointer-events:none;transform:translateY(20px)}
.cb{
  background:none;border:none;cursor:pointer;
  font-family:var(--font);font-size:12px;font-weight:600;
  color:var(--text-sub);padding:5px 12px;border-radius:6px;
  transition:background .2s,color .2s;white-space:nowrap;
}
.cb:hover{background:var(--primary-bg);color:var(--primary)}
.cb--rec{
  background:var(--white);border:1px solid var(--border);
  margin-left:4px;
}
.cb--rec.active{background:#fee;border-color:#C62828;color:#C62828}
.cc{
  font-family:var(--font-en);font-size:11px;font-weight:600;
  color:var(--text-mute);min-width:80px;text-align:center;
}
.progress-wrap{
  flex:1;min-width:120px;height:4px;
  background:var(--border-l);border-radius:2px;
  overflow:hidden;cursor:pointer;
}
.progress-bar{
  height:100%;width:0;
  background:var(--primary);border-radius:2px;
  transition:width .1s linear;
}