/* AI BUILDRICH モックD — コーギー案内型。白地＋薄い水色・青・オレンジのボタン */
:root{
  --blue:#2563EB; --blue-d:#1D4ED8; --navy:#1E3A8A; --ink:#111827; --sub:#4B5563;
  --tint:#EEF4FF; --line:#DCE6F7; --white:#fff;
  --orange:#F59E0B; --orange-soft:#FFF7E8; --mark:#FDE68A; --neg:#DC2626;
  --radius:18px; --shadow:0 6px 24px rgba(30,58,138,.08);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:"Noto Sans JP",system-ui,sans-serif;font-size:17px;line-height:1.85;color:var(--ink);background:var(--white);overflow-x:hidden;-webkit-text-size-adjust:100%}
ul,ol{list-style:none}
a{color:inherit}
img{max-width:100%;display:block}
h1,h2,h3{color:var(--navy);line-height:1.4;font-weight:900}
.wrap{max-width:1080px;margin:0 auto;padding:0 32px}
.wrap-narrow{max-width:860px}
.nw{white-space:nowrap}
.pc{display:inline}
.sp{display:none}
.blue{color:var(--blue)}
.mark{background:linear-gradient(transparent 58%,var(--mark) 58%);padding:0 2px}

.mock-bar{background:var(--navy);color:#DBE6FF;font-size:13px;text-align:center;padding:6px 16px;line-height:1.5;font-weight:500}

/* ヘッダー */
.header{background:rgba(255,255,255,.92);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:10;backdrop-filter:blur(6px)}
.header-in{display:flex;align-items:center;justify-content:space-between;height:64px;gap:12px}
.logo{font-family:Inter,sans-serif;font-weight:800;font-size:22px;letter-spacing:.02em;text-decoration:none;color:var(--navy);white-space:nowrap}
.logo small{font-size:13px;margin-right:6px;color:var(--blue);font-weight:800}
.logo span{color:var(--blue)}
.header-cta{font-size:14px;font-weight:700;text-decoration:none;color:var(--white);background:var(--blue);border-radius:999px;padding:7px 18px;white-space:nowrap}

/* ボタン */
.btn{display:inline-block;text-decoration:none;font-weight:900;font-size:18px;border-radius:999px;padding:17px 44px;transition:transform .15s,box-shadow .15s;text-align:center}
.btn:hover{transform:translateY(-2px)}
.btn-orange{background:var(--orange);color:var(--ink);box-shadow:0 8px 20px rgba(245,158,11,.35)}
.btn-sub{font-size:13px;color:var(--sub);margin-top:10px}

/* 1. 一番上 */
.hero{background:#F5F8FF url(img/hero_bg.jpg) center/cover no-repeat;padding:64px 0 72px;overflow:hidden}
.hero-in{display:grid;grid-template-columns:1.1fr 1fr;gap:40px;align-items:center}
.pill,.sec-pill{display:inline-block;font-size:13px;font-weight:700;color:var(--blue-d);background:var(--white);border:1.5px solid var(--blue);border-radius:999px;padding:3px 14px;margin-bottom:18px}
.hero h1{font-size:58px;letter-spacing:.01em;margin-bottom:22px}
.hero h1 .mark{color:var(--blue)}
.hero-lead{font-size:18px;font-weight:500;margin-bottom:24px}
.help-label{font-size:13px;font-weight:700;color:var(--navy);margin-bottom:8px}
.help-chips{display:grid;gap:10px;margin-bottom:28px;max-width:500px}
.help-chips li{display:flex;gap:12px;align-items:center;background:rgba(255,255,255,.94);border:1px solid var(--line);border-radius:12px;padding:10px 14px;box-shadow:0 2px 8px rgba(30,58,138,.05)}
.help-ic{flex:0 0 36px;height:36px;border-radius:10px;background:var(--tint);color:var(--blue);display:flex;align-items:center;justify-content:center}
.help-chips strong{display:block;font-size:15px;color:var(--navy);line-height:1.4}
.help-chips span{font-size:13px;color:var(--sub);line-height:1.5;display:block}

.hero-visual{position:relative;padding-bottom:40px;max-width:520px;justify-self:end;width:100%}
.laptop{width:88%;margin-left:auto}
.laptop-screen{background:#0F172A;border:10px solid #1F2937;border-radius:14px 14px 4px 4px;aspect-ratio:16/10;overflow:hidden;box-shadow:0 20px 50px rgba(29,78,216,.35)}
.laptop-base{height:14px;background:linear-gradient(#D1D5DB,#9CA3AF);border-radius:0 0 14px 14px;width:112%;margin-left:-6%}
.scr-bar{display:flex;align-items:center;gap:5px;background:#1E293B;padding:6px 10px}
.scr-bar i{width:7px;height:7px;border-radius:50%;background:#64748B}
.scr-bar span{margin-left:8px;color:#CBD5E1;font-size:11px;font-weight:700}
.scr-body{display:grid;grid-template-columns:1.1fr 1fr;gap:12px;padding:14px;height:calc(100% - 30px)}
.scr-chart{display:flex;align-items:flex-end;gap:6px;background:#111C33;border-radius:8px;padding:10px}
.scr-chart b{flex:1;background:linear-gradient(#60A5FA,#2563EB);border-radius:3px 3px 0 0}
.scr-lines{display:flex;flex-direction:column;gap:8px;justify-content:center}
.scr-lines s{display:block;height:8px;border-radius:4px;background:#334155;text-decoration:none}
.scr-lines s.short{width:60%}
.scr-lines em{font-style:normal;font-size:11px;color:#FCD34D;font-weight:700;line-height:1.4}
.hero-chars{position:absolute;left:-6%;bottom:0;width:62%}
.hero-bubble{position:absolute;left:0;bottom:62%;background:var(--white);color:var(--navy);font-weight:700;font-size:14px;border-radius:14px;padding:6px 14px;box-shadow:var(--shadow);white-space:nowrap}
.hero-bubble::after{content:"";position:absolute;left:28px;bottom:-8px;border:8px solid transparent;border-top-color:var(--white);border-bottom:0}

/* 共通の段 */
.section{padding:88px 0;text-align:center}
.section-tint{background:var(--tint)}
.section > .wrap > *{text-align:left}
.section > .wrap > .sec-pill{display:table;margin:0 auto 14px}
.sec-title{font-size:38px;text-align:center !important;margin-bottom:14px}
.sec-lead{text-align:center !important;color:var(--sub);margin-bottom:8px}
.small-note{font-size:13px;color:var(--sub);text-align:center !important;margin-top:20px}

/* 番号の丸 */
.badge{display:inline-flex;align-items:center;justify-content:center;width:30px;height:30px;border-radius:50%;background:var(--blue);color:var(--white);font-family:Inter,sans-serif;font-weight:800;font-size:15px;flex:0 0 30px;line-height:1}

/* 掛け合い */
.talk{max-width:780px;margin:36px auto 44px;display:flex;flex-direction:column;gap:14px}
.talk-row{display:flex;align-items:flex-start;gap:14px}
.talk-right{flex-direction:row-reverse}
.talk-face{flex:0 0 76px;text-align:center}
.talk-face img{width:76px;height:76px;object-fit:cover;object-position:center 12%;border-radius:50%;background:var(--white);border:2.5px solid var(--line)}
.talk-teacher .talk-face img{border-color:var(--blue)}
.talk-student .talk-face img{border-color:var(--orange)}
.talk-penguin .talk-face img{border-color:#93C5FD}
.talk-face{display:flex;flex-direction:column;align-items:center}
.talk-face figcaption{font-size:11px;font-weight:700;color:var(--sub);margin-top:4px;line-height:1.3;white-space:nowrap}
.talk-bubble{position:relative;min-width:0;background:var(--white);border:1.5px solid var(--line);border-radius:18px;padding:14px 18px;font-size:16px;font-weight:500;line-height:1.75;box-shadow:0 2px 10px rgba(30,58,138,.05);margin-top:6px;max-width:640px}
.talk-left .talk-bubble{border-top-left-radius:4px}
.talk-right .talk-bubble{border-top-right-radius:4px;background:#F2F7FF;border-color:#BFD3FB}

/* 2. 当てはまる */
.checks{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:36px}
.checks li{display:flex;gap:12px;align-items:flex-start;background:var(--white);border:1px solid var(--line);border-radius:14px;padding:16px 18px;font-weight:500;box-shadow:var(--shadow);line-height:1.7}
.checks li:last-child{grid-column:1 / -1}
.chk{flex:0 0 26px;height:26px;border-radius:7px;background:var(--blue);color:var(--white);display:flex;align-items:center;justify-content:center;margin-top:1px}
.note-band{display:flex;align-items:center;gap:16px;background:var(--orange-soft);border-left:6px solid var(--orange);border-radius:12px;padding:16px 20px;margin-top:24px}
.note-band p{flex:1;min-width:0;font-weight:700;line-height:1.8}
.note-band strong{color:var(--blue-d);white-space:nowrap}
.note-band img{flex:0 0 auto;width:96px;height:auto}

/* 3. できること */
.able-list{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.able-card{display:flex;flex-direction:column;background:var(--white);border-radius:var(--radius);padding:26px 24px 16px;box-shadow:var(--shadow);border:1px solid var(--line)}
.able-card .badge{margin-bottom:14px}
.able-card h3{font-size:20px;margin-bottom:8px}
.able-card p{color:var(--sub);font-size:15.5px}
.able-card img{height:130px;width:auto;align-self:flex-end;margin-top:auto;padding-top:12px}

/* 4. 始め方 */
.steps{display:flex;align-items:stretch;gap:12px}
.step{flex:1;background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:26px 24px;box-shadow:var(--shadow);display:flex;flex-direction:column}
.step-no{display:flex;align-items:center;gap:10px;font-family:Inter,sans-serif;font-weight:800;color:var(--blue);font-size:14px;letter-spacing:.06em;margin-bottom:10px}
.step h3{font-size:22px;margin-bottom:6px}
.step p{color:var(--sub);font-size:15.5px;margin-bottom:16px}
.step-tag{margin-top:auto;align-self:flex-start;font-size:13px;font-weight:700;color:var(--blue-d);background:var(--tint);border-radius:999px;padding:3px 12px}
.step-arrow{display:flex;align-items:center;color:var(--blue)}

/* 5. 実例 */
.case-card{background:var(--white);border:2px solid var(--blue);border-radius:22px;padding:36px;box-shadow:var(--shadow)}
.case-head{font-size:15px;color:var(--sub);margin-bottom:22px}
.case-head strong{color:var(--navy);font-size:18px}
.case-main{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.case-big{background:var(--tint);border-radius:16px;padding:22px 24px}
.case-label{display:flex;gap:10px;align-items:center;font-weight:700;color:var(--navy);font-size:15px;line-height:1.5}
.case-label .badge{width:26px;height:26px;flex-basis:26px;font-size:13px}
.case-num{font-family:Inter,sans-serif;font-weight:800;font-size:60px;line-height:1.1;color:var(--blue);margin:12px 0 4px}
.case-num small{font-size:22px;margin-left:4px;font-family:"Noto Sans JP",sans-serif;font-weight:700}
.case-num.neg{color:var(--neg)}
.case-yen{font-weight:700;color:var(--neg);margin-bottom:6px}
.case-yen small{color:var(--sub);font-weight:500;font-size:13px;margin-left:6px}
.case-sub{font-size:14.5px;color:var(--sub);line-height:1.75}
.case-compare{margin-top:30px}
.case-compare h3{font-size:20px;margin-bottom:14px}
.bars{display:flex;flex-direction:column;gap:10px}
.bar-row{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(0,1fr) 96px;gap:14px;align-items:center;font-size:14px;padding:6px 10px;border-radius:10px}
.bar-row.is-hl{background:var(--orange-soft);font-weight:700}
.bar-track{height:14px;background:#E5ECF8;border-radius:7px;overflow:hidden}
.bar-fill{display:block;height:100%;background:#93B4F5;border-radius:7px}
.is-base .bar-fill{background:var(--blue)}
.is-hl .bar-fill{background:var(--orange)}
.bar-val{font-family:Inter,sans-serif;font-weight:800;color:var(--navy);text-align:right;white-space:nowrap}
.bar-val small{font-family:"Noto Sans JP",sans-serif;font-size:11px;margin-left:2px;font-weight:700}
.bars-note{font-size:13px;color:var(--sub);margin-top:10px}
.note-band-in{margin-top:26px}
.case-src{font-size:12.5px;color:var(--sub);margin-top:20px;line-height:1.7}

/* 6. 料金 */
.toggle{display:flex;justify-content:center;gap:0;margin:0 auto 10px;width:max-content;border:2px solid var(--blue);border-radius:999px;overflow:hidden;background:var(--white)}
.toggle button{font:inherit;font-size:15px;font-weight:700;border:0;background:transparent;color:var(--blue);padding:8px 22px;cursor:pointer}
.toggle button.on{background:var(--blue);color:var(--white)}
.member-note{text-align:center !important;font-size:14px;color:var(--blue-d);font-weight:700;min-height:1.5em;margin-bottom:18px}
.plans{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;align-items:stretch}
.plan{position:relative;background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:30px 26px 24px;box-shadow:var(--shadow);display:flex;flex-direction:column}
.plan-rec{border:2.5px solid var(--blue);background:linear-gradient(#F5F8FF,#fff 40%)}
.rec{position:absolute;top:-14px;left:50%;transform:translateX(-50%);background:var(--orange);color:var(--ink);font-size:13px;font-weight:900;padding:3px 16px;border-radius:999px;white-space:nowrap}
.plan-role{font-size:13px;font-weight:700;color:var(--blue)}
.plan h3{font-size:24px;margin-bottom:6px}
.plan-lead{font-size:14.5px;color:var(--sub);margin-bottom:12px;line-height:1.7}
.plan-price{color:var(--navy);font-weight:700;margin-bottom:14px}
.plan-price strong{font-family:Inter,sans-serif;font-size:40px;font-weight:800;color:var(--blue);margin-right:2px}
.plan-price small{font-size:12px;color:var(--sub);font-weight:500}
.plan-price .was{display:block;font-size:13px;color:var(--sub);text-decoration:line-through;font-weight:500}
.plan ul{display:flex;flex-direction:column;gap:6px;border-top:1px dashed var(--line);padding-top:14px}
.plan li{display:flex;gap:8px;align-items:flex-start;font-size:15px;line-height:1.6}
.plan li svg{color:var(--blue);flex:0 0 16px;margin-top:4px}
.plan-note{font-size:13px;color:var(--sub);margin-top:12px}
.extra{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:26px}
.extra li{background:var(--tint);border-radius:14px;padding:16px 20px;font-size:14.5px;line-height:1.7}
.extra strong{display:block;color:var(--navy);font-size:16px}
.extra em{font-style:normal;font-weight:700;color:var(--blue-d);display:block}
.extra span{color:var(--sub);display:block}

/* 7. 誰が */
.team{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.team li{display:flex;gap:16px;align-items:flex-start;background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:26px 24px;box-shadow:var(--shadow)}
.team li > div{min-width:0}
.team-name{font-size:22px;font-weight:900;color:var(--navy);margin-right:10px}
.team-role{display:inline-block;font-size:13px;font-weight:700;color:var(--blue-d);background:var(--tint);border-radius:999px;padding:2px 12px;vertical-align:4px}
.team p{color:var(--sub);margin-top:6px;font-size:15.5px}

/* 8. 声 */
.voices{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.voice{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:26px 26px 20px;box-shadow:var(--shadow);position:relative}
.voice::before{content:"\201C";position:absolute;top:2px;left:18px;font-family:Georgia,serif;font-size:56px;color:#BFD3FB;line-height:1}
.voice blockquote{font-weight:500;padding-top:18px;line-height:1.85}
.voice figcaption{font-size:13px;color:var(--sub);margin-top:10px;font-weight:700}

/* 9. よくある質問 */
.faq{display:flex;flex-direction:column;gap:12px}
.faq-item{background:var(--white);border:1px solid var(--line);border-radius:14px;box-shadow:0 2px 8px rgba(30,58,138,.04)}
.faq-q{width:100%;display:flex;justify-content:space-between;align-items:center;gap:12px;font:inherit;font-weight:700;color:var(--navy);text-align:left;background:none;border:0;padding:16px 20px;cursor:pointer}
.faq-q b,.faq-a b{color:var(--blue);margin-right:8px;font-family:Inter,sans-serif}
.faq-a b{color:var(--orange)}
.faq-q svg{flex:0 0 24px;color:var(--blue);transition:transform .2s}
.faq-q[aria-expanded="true"] svg{transform:rotate(45deg)}
.faq-a{padding:0 20px 18px;font-size:15.5px;color:var(--ink)}

/* 10. 最後 */
.final{background:linear-gradient(180deg,var(--white),var(--tint));padding:80px 0 88px;text-align:center}
.final-chars{width:320px;margin:0 auto 18px}
.final h2{font-size:38px;margin-bottom:10px}
.final p{color:var(--sub);margin-bottom:28px}

.footer{background:var(--navy);color:#C7D5F5;font-size:13px;padding:22px 0;text-align:center}

/* ---- タブレット ---- */
@media (max-width:960px){
  .hero-in{grid-template-columns:1fr;gap:28px}
  .hero-visual{justify-self:center;max-width:460px}
  .able-list,.plans{grid-template-columns:1fr;max-width:560px;margin-left:auto;margin-right:auto}
  .steps{flex-direction:column}
  .step-arrow{justify-content:center;transform:rotate(90deg)}
  .case-main{grid-template-columns:1fr}
}

/* ---- スマホ ---- */
@media (max-width:640px){
  body{font-size:16px}
  .wrap{padding:0 16px}
  .pc{display:none}
  .sp{display:inline}
  .logo{font-size:18px}
  .header-cta{font-size:13px;padding:6px 14px}
  .hero{padding:40px 0 48px;background:linear-gradient(180deg,rgba(245,248,255,.97) 0,rgba(245,248,255,.9) 60%,rgba(245,248,255,0) 76%),url(img/hero_bg.jpg) 72% 100%/cover no-repeat,#F5F8FF}
  .laptop{width:84%}
  .laptop-base{width:106%;margin-left:-3%}
  .hero-chars{left:0;width:64%}
  .hero-bubble{bottom:60%;font-size:13px}
  .hero h1{font-size:38px}
  .hero-lead{font-size:16px}
  .btn{font-size:16px;padding:15px 22px;width:100%}
  .section{padding:60px 0}
  .sec-title{font-size:26px}
  .talk{margin:26px auto 30px;gap:12px}
  .talk-face{flex-basis:56px}
  .talk-face img{width:56px;height:56px}
  .talk-face figcaption{font-size:10px;letter-spacing:-.02em}
  .talk-bubble{font-size:15px;padding:11px 14px}
  .checks{grid-template-columns:1fr}
  .note-band{padding:14px 14px}
  .note-band p{font-size:15px}
  .note-band img{width:64px}
  .able-card img{height:110px}
  .case-card{padding:22px 16px}
  .case-num{font-size:46px}
  .bar-row{grid-template-columns:1fr 84px;gap:4px 10px;padding:6px 6px}
  .bar-label{grid-column:1 / -1;line-height:1.5}
  .extra,.team,.voices{grid-template-columns:1fr}
  .final h2{font-size:28px}
  .final-chars{width:240px}
}