/* ============================================
   宅ドリル便 LP - 四條畷学園大学 国家試験対策 導入事例
   メインカラー: ティール/ターコイズ (大学サイト参照)
============================================ */
:root{
  --teal:#17b3a6;
  --teal-dark:#0e8f85;
  --teal-deep:#0a6b63;
  --lime:#a9d829;        /* ランヤードのグリーン */
  --ink:#20343a;
  --ink-soft:#4a5b60;
  --gray:#7a8a8e;
  --bg:#ffffff;
  --bg-soft:#f2f8f7;
  --bg-tint:#e6f4f2;
  --line:#dfe9e7;
  --white:#fff;
  --shadow:0 10px 30px rgba(14,143,133,.12);
  --shadow-lg:0 20px 50px rgba(14,143,133,.18);
  --radius:16px;
  --radius-lg:24px;
  --maxw:1120px;
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:72px}
body{
  font-family:"Noto Sans JP","Zen Kaku Gothic New",sans-serif;
  color:var(--ink);
  line-height:1.85;
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  font-size:16px;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{text-decoration:none;color:inherit}
h1,h2,h3,h4{font-family:"Zen Kaku Gothic New","Noto Sans JP",sans-serif;line-height:1.4;letter-spacing:.02em}

.container{max-width:var(--maxw);margin:0 auto;padding:0 24px;width:100%}
.container-narrow{max-width:820px}
.pc-only{display:inline}
.sp-only{display:none}

/* ===== ボタン ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.5em;
  font-weight:700;border-radius:999px;cursor:pointer;border:none;
  transition:transform .2s,box-shadow .2s,background .2s,color .2s;
  padding:.85em 1.6em;font-size:15px;text-align:center;line-height:1.3;
}
.btn i{font-size:.95em}
.btn-primary{background:linear-gradient(135deg,var(--teal),var(--teal-dark));color:#fff;box-shadow:0 8px 20px rgba(14,143,133,.35)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 28px rgba(14,143,133,.45)}
.btn-ghost{background:rgba(255,255,255,.9);color:var(--teal-dark);border:2px solid var(--teal)}
.btn-ghost:hover{background:var(--teal);color:#fff;transform:translateY(-2px)}
.btn-outline{background:transparent;color:var(--teal-dark);border:2px solid var(--teal)}
.btn-outline:hover{background:var(--teal);color:#fff}
.btn-lg{padding:1em 2em;font-size:16px}
.btn-xl{padding:1.15em 2.6em;font-size:18px}
.btn-block{width:100%}
.btn-header{padding:.6em 1.2em;font-size:13.5px;background:linear-gradient(135deg,var(--teal),var(--teal-dark));color:#fff;box-shadow:0 4px 12px rgba(14,143,133,.3)}
.btn-header:hover{transform:translateY(-1px)}

/* ===== ヘッダー ===== */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:100;
  background:rgba(255,255,255,.92);backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);transition:box-shadow .3s;
}
.site-header.scrolled{box-shadow:0 4px 20px rgba(0,0,0,.06)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:64px;gap:16px}
.brand{display:flex;align-items:center;gap:.5em;font-weight:900;font-size:20px;color:var(--teal-dark)}
.brand-mark{width:36px;height:36px;border-radius:10px;background:linear-gradient(135deg,var(--teal),var(--teal-dark));color:#fff;display:grid;place-items:center;font-size:17px}
.brand-text{font-family:"Zen Kaku Gothic New",sans-serif}
.header-nav{display:flex;gap:22px}
.header-nav a{font-size:14px;font-weight:500;color:var(--ink-soft);transition:color .2s}
.header-nav a:hover{color:var(--teal-dark)}

/* ===== ファーストビュー ===== */
.hero{
  position:relative;padding:120px 0 90px;
  background:
    radial-gradient(1200px 500px at 80% -10%,rgba(169,216,41,.12),transparent 60%),
    linear-gradient(160deg,#f4fbfa 0%,#e6f4f2 55%,#d5ede9 100%);
  overflow:hidden;
}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:50px;align-items:center}
.hero-eyebrow{display:inline-flex;align-items:center;gap:.5em;background:#fff;color:var(--teal-dark);font-weight:700;font-size:13.5px;padding:.5em 1.1em;border-radius:999px;box-shadow:var(--shadow);margin-bottom:22px}
.hero-title{font-size:clamp(28px,4vw,44px);font-weight:900;color:var(--ink);letter-spacing:.01em;margin-bottom:22px}
.hero-title .hl{color:var(--teal-dark);position:relative;white-space:nowrap}
.hero-title .hl::after{content:"";position:absolute;left:0;right:0;bottom:.05em;height:.32em;background:rgba(169,216,41,.5);z-index:-1;border-radius:4px}
.hero-lead{font-size:16px;color:var(--ink-soft);margin-bottom:26px}
.hero-badges{list-style:none;display:flex;flex-wrap:wrap;gap:10px 18px;margin-bottom:30px}
.hero-badges li{font-size:14px;font-weight:700;color:var(--teal-deep)}
.hero-badges i{color:var(--teal)}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:18px}
.hero-note{font-size:13px;color:var(--gray)}
.hero-note strong{color:var(--teal-dark)}

.hero-visual{position:relative}
.hero-photo{position:relative;border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-lg);background:#fff}
.hero-photo img{width:100%;height:auto;object-fit:cover}
.hero-photo figcaption{position:absolute;left:0;right:0;bottom:0;padding:16px 18px;color:#fff;font-size:13.5px;background:linear-gradient(transparent,rgba(10,107,99,.85))}
.hero-photo figcaption strong{font-size:16px}
.hero-stat{
  position:absolute;right:-8px;top:-24px;background:#fff;border-radius:20px;
  padding:16px 22px;box-shadow:var(--shadow-lg);text-align:center;border:3px solid var(--lime);
}
.hero-stat .stat-num{display:block;font-family:"Zen Kaku Gothic New";font-weight:900;font-size:38px;color:var(--teal-dark);line-height:1}
.hero-stat .stat-num small{font-size:18px}
.hero-stat .stat-label{display:block;font-size:11px;font-weight:700;color:var(--ink-soft);margin-top:4px;line-height:1.4}
.hero-wave{position:absolute;left:0;right:0;bottom:-1px;height:60px;background:#fff;clip-path:polygon(0 60%,100% 0,100% 100%,0 100%)}

/* ===== セクション共通 ===== */
.section{padding:80px 0}
.section-eyebrow{text-align:center;color:var(--teal);font-weight:700;font-size:14px;letter-spacing:.08em;margin-bottom:12px}
.section-eyebrow::before{content:"◆ ";font-size:10px;vertical-align:2px}
.section-title{text-align:center;font-size:clamp(24px,3.4vw,34px);font-weight:900;color:var(--ink);margin-bottom:44px}

/* ===== 悩み ===== */
.empathy{background:var(--bg-soft)}
.worry-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.worry-card{background:#fff;border-radius:var(--radius);padding:28px 22px;box-shadow:var(--shadow);text-align:center;border:1px solid var(--line)}
.worry-icon{width:60px;height:60px;border-radius:16px;background:var(--bg-tint);color:var(--teal-dark);display:grid;place-items:center;font-size:24px;margin:0 auto 16px}
.worry-card h3{font-size:16px;margin-bottom:10px;color:var(--ink)}
.worry-card p{font-size:13.5px;color:var(--ink-soft);line-height:1.75}
.empathy-bridge{text-align:center;margin-top:40px;font-size:20px;font-weight:900;color:var(--ink)}
.empathy-bridge i{color:var(--teal);font-size:26px;animation:bounce 1.6s infinite}
.empathy-bridge strong{color:var(--teal-dark)}
@keyframes bounce{0%,100%{transform:translateY(0)}50%{transform:translateY(8px)}}

/* ===== 解決 ===== */
.solve-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.solve-card{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:30px 30px 30px 30px;box-shadow:var(--shadow);overflow:hidden}
.solve-card::before{content:"";position:absolute;left:0;top:0;bottom:0;width:6px;background:linear-gradient(var(--teal),var(--lime))}
.solve-num{display:inline-block;font-family:"Zen Kaku Gothic New";font-weight:900;font-size:15px;color:#fff;background:var(--teal);width:36px;height:36px;line-height:36px;text-align:center;border-radius:10px;margin-bottom:14px}
.solve-card h3{font-size:18px;margin-bottom:10px;color:var(--ink)}
.solve-card p{font-size:14.5px;color:var(--ink-soft)}

/* ===== 選ばれる理由 ===== */
.reasons{background:var(--bg-soft)}
.reason-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:stretch}
.reason-card{position:relative;background:#fff;border-radius:var(--radius);padding:36px 26px;box-shadow:var(--shadow);text-align:center;border:1px solid var(--line)}
.reason-card.featured{border:2px solid var(--teal);box-shadow:var(--shadow-lg);transform:translateY(-6px)}
.reason-badge{position:absolute;top:-14px;left:50%;transform:translateX(-50%);background:var(--lime);color:#33430a;font-weight:900;font-size:12px;padding:.3em 1.2em;border-radius:999px}
.reason-icon{width:70px;height:70px;border-radius:50%;background:linear-gradient(135deg,var(--teal),var(--teal-dark));color:#fff;display:grid;place-items:center;font-size:28px;margin:0 auto 18px}
.reason-card h3{font-size:18px;margin-bottom:12px}
.reason-card p{font-size:14px;color:var(--ink-soft);text-align:left}
.reason-card p strong{color:var(--teal-dark)}

/* ===== 機能・プラン ===== */
.feature-list{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-bottom:48px}
.feature-item{display:flex;gap:14px;background:#fff;border:1px solid var(--line);border-radius:14px;padding:18px 20px;box-shadow:0 4px 14px rgba(14,143,133,.06)}
.feature-item>i{color:var(--teal);font-size:22px;flex-shrink:0;margin-top:3px;width:26px;text-align:center}
.feature-item h4{font-size:15px;margin-bottom:4px}
.feature-item p{font-size:13px;color:var(--ink-soft);line-height:1.6}

.plan-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:26px;max-width:780px;margin:0 auto}
.plan-card{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:34px 30px;box-shadow:var(--shadow);text-align:center}
.plan-card.highlight{border:2px solid var(--teal);box-shadow:var(--shadow-lg)}
.plan-ribbon{position:absolute;top:-14px;left:50%;transform:translateX(-50%);background:linear-gradient(135deg,var(--teal),var(--teal-dark));color:#fff;font-weight:900;font-size:12px;padding:.35em 1.4em;border-radius:999px;white-space:nowrap}
.plan-name{font-size:20px;color:var(--ink);margin-bottom:12px}
.plan-price{display:flex;align-items:baseline;justify-content:center;gap:4px;margin-bottom:20px;color:var(--teal-dark)}
.plan-price .yen{font-size:14px;font-weight:700}
.plan-price .num{font-family:"Zen Kaku Gothic New";font-weight:900;font-size:40px;line-height:1}
.plan-price .unit{font-size:14px;font-weight:700}
.plan-feat{list-style:none;text-align:left;margin-bottom:24px;display:grid;gap:10px}
.plan-feat li{font-size:14px;color:var(--ink-soft);display:flex;gap:.6em;align-items:flex-start}
.plan-feat i{color:var(--teal);margin-top:5px;flex-shrink:0}
.plan-feat .fa-gift{color:var(--lime)}
.plan-note{text-align:center;font-size:13px;color:var(--gray);margin-top:24px}
.plan-note i{color:var(--teal)}

/* ===== 利用メリット ===== */
.merits{background:linear-gradient(160deg,#f4fbfa,#e6f4f2)}
.merit-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.merit-card{background:#fff;border-radius:var(--radius);padding:34px 26px;text-align:center;box-shadow:var(--shadow);border:1px solid var(--line)}
.merit-icon{width:72px;height:72px;border-radius:50%;background:var(--bg-tint);color:var(--teal-dark);display:grid;place-items:center;font-size:30px;margin:0 auto 18px}
.merit-card h3{font-size:18px;margin-bottom:10px}
.merit-card p{font-size:14px;color:var(--ink-soft)}

/* ===== 導入事例 ===== */
.case-hero{display:grid;grid-template-columns:340px 1fr;gap:36px;align-items:center;background:#fff;border-radius:var(--radius-lg);padding:34px;box-shadow:var(--shadow-lg);border:1px solid var(--line);margin-bottom:50px}
.case-portrait{border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);aspect-ratio:3/4;max-height:420px}
.case-portrait img{width:100%;height:100%;object-fit:cover;object-position:center 22%}
.case-tag{display:inline-block;background:var(--bg-tint);color:var(--teal-deep);font-weight:700;font-size:13px;padding:.4em 1em;border-radius:999px;margin-bottom:16px}
.case-lead{font-family:"Zen Kaku Gothic New";font-size:clamp(18px,2.2vw,23px);font-weight:700;color:var(--ink);line-height:1.6;margin-bottom:16px;position:relative;padding-left:14px}
.case-lead::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:5px;border-radius:4px;background:linear-gradient(var(--teal),var(--lime))}
.case-name{font-size:14px;color:var(--ink-soft);margin-bottom:22px}
.case-name strong{color:var(--ink);font-size:16px}
.case-metrics{display:flex;gap:22px;flex-wrap:wrap}
.cm{text-align:center}
.cm-num{display:block;font-family:"Zen Kaku Gothic New";font-weight:900;font-size:30px;color:var(--teal-dark);line-height:1}
.cm-num small{font-size:15px}
.cm-label{display:block;font-size:11.5px;font-weight:700;color:var(--gray);margin-top:6px;line-height:1.4}

.case-story{display:grid;gap:24px}
.story-block{display:grid;grid-template-columns:300px 1fr;gap:30px;align-items:center;background:#fff;border-radius:var(--radius);padding:28px 30px;border:1px solid var(--line)}
.story-block h3{font-size:17px;color:var(--teal-deep);margin-bottom:12px;display:flex;gap:.5em;align-items:baseline}
.story-q{font-family:"Zen Kaku Gothic New";font-weight:900;color:var(--lime);font-size:22px}
.story-block p{font-size:15px;color:var(--ink-soft)}
.story-block.reverse{grid-template-columns:1fr 300px;background:var(--bg-soft)}
.story-block.reverse .story-photo{order:2}
.story-block.reverse .story-text{order:1}
.story-photo{border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);aspect-ratio:4/3}
.story-photo img{width:100%;height:100%;object-fit:cover;object-position:center 20%}
.case-disclaimer{text-align:center;font-size:12.5px;color:var(--gray);margin-top:30px}
.case-disclaimer i{color:var(--teal)}

/* ===== ご利用の流れ ===== */
.flow{background:var(--bg-soft)}
.flow-steps{list-style:none;display:grid;grid-template-columns:repeat(4,1fr);gap:20px;counter-reset:none}
.flow-step{position:relative;background:#fff;border-radius:var(--radius);padding:34px 22px 26px;text-align:center;box-shadow:var(--shadow);border:1px solid var(--line)}
.flow-num{position:absolute;top:-16px;left:50%;transform:translateX(-50%);width:36px;height:36px;border-radius:50%;background:var(--teal);color:#fff;font-family:"Zen Kaku Gothic New";font-weight:900;display:grid;place-items:center;font-size:17px;box-shadow:0 4px 10px rgba(14,143,133,.3)}
.flow-ico{display:grid;place-items:center;width:56px;height:56px;margin:8px auto 14px;border-radius:16px;background:var(--bg-tint);color:var(--teal-dark);font-size:24px}
.flow-step h3{font-size:16px;margin-bottom:8px}
.flow-step p{font-size:13px;color:var(--ink-soft)}

/* ===== FAQ ===== */
.faq-list{display:grid;gap:14px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:14px;box-shadow:0 3px 12px rgba(14,143,133,.06);overflow:hidden}
.faq-item summary{list-style:none;cursor:pointer;padding:20px 54px 20px 24px;font-weight:700;font-size:15.5px;color:var(--ink);position:relative}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::before{content:"Q";position:absolute;left:24px;display:none}
.faq-item summary::after{content:"\f078";font-family:"Font Awesome 6 Free";font-weight:900;position:absolute;right:24px;top:50%;transform:translateY(-50%);color:var(--teal);transition:transform .3s;font-size:14px}
.faq-item[open] summary::after{transform:translateY(-50%) rotate(180deg)}
.faq-a{padding:0 24px 20px}
.faq-a p{font-size:14.5px;color:var(--ink-soft)}

/* ===== 最後のCTA ===== */
.final-cta{padding:80px 0;background:
  radial-gradient(900px 400px at 20% 0%,rgba(169,216,41,.15),transparent 60%),
  linear-gradient(135deg,var(--teal-dark),var(--teal-deep))}
.cta-box{background:#fff;border-radius:var(--radius-lg);padding:48px 40px;text-align:center;box-shadow:var(--shadow-lg)}
.cta-eyebrow{display:inline-flex;gap:.5em;align-items:center;color:var(--teal-dark);font-weight:700;font-size:14px;background:var(--bg-tint);padding:.5em 1.2em;border-radius:999px;margin-bottom:18px}
.cta-title{font-size:clamp(24px,3.4vw,32px);font-weight:900;color:var(--ink);margin-bottom:16px}
.cta-lead{font-size:15px;color:var(--ink-soft);margin-bottom:30px}
.cta-sub{font-size:12.5px;color:var(--gray);margin-top:12px}
.cta-points{list-style:none;display:flex;flex-wrap:wrap;gap:10px 26px;justify-content:center;margin-top:26px}
.cta-points li{font-size:13.5px;font-weight:700;color:var(--teal-deep)}
.cta-points i{color:var(--teal)}

/* ===== フッター ===== */
.site-footer{background:var(--ink);color:#cdd8da;padding:50px 0 0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:40px;align-items:start}
.footer-brand .brand-mark{margin-bottom:8px}
.footer-brand .brand-text{font-size:20px;font-weight:900;color:#fff;display:block;margin-bottom:10px}
.footer-desc{font-size:13px;color:#9fb0b2;line-height:1.7}
.footer-nav{display:flex;flex-direction:column;gap:10px}
.footer-nav a{font-size:14px;color:#cdd8da;transition:color .2s}
.footer-nav a:hover{color:var(--lime)}
.footer-partner-label{font-size:13px;color:#9fb0b2;margin-bottom:10px;font-weight:700}
.campus-link{display:block;border-radius:12px;overflow:hidden;box-shadow:0 8px 20px rgba(0,0,0,.3);position:relative;transition:transform .25s}
.campus-link:hover{transform:translateY(-3px)}
.campus-link img{width:100%;height:auto;display:block}
.campus-caption{display:flex;align-items:center;gap:.5em;justify-content:center;background:var(--teal-dark);color:#fff;font-size:13px;font-weight:700;padding:10px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);margin-top:40px;padding:20px 0;text-align:center}
.footer-bottom p{font-size:12px;color:#8ba0a2}

/* ===== 追従CTA(スマホ) ===== */
.mobile-cta{display:none;position:fixed;left:0;right:0;bottom:0;z-index:90;padding:10px 14px calc(10px + env(safe-area-inset-bottom));background:rgba(255,255,255,.96);backdrop-filter:blur(8px);box-shadow:0 -4px 20px rgba(0,0,0,.1)}

/* ============================================
   レスポンシブ
============================================ */
@media(max-width:960px){
  .header-nav{display:none}
  .worry-grid{grid-template-columns:repeat(2,1fr)}
  .reason-grid{grid-template-columns:1fr}
  .reason-card.featured{transform:none}
  .feature-list{grid-template-columns:repeat(2,1fr)}
  .merit-grid{grid-template-columns:1fr}
  .flow-steps{grid-template-columns:repeat(2,1fr);gap:32px 20px}
  .footer-grid{grid-template-columns:1fr 1fr}
  .footer-partner{grid-column:1/-1}
  .case-hero{grid-template-columns:1fr;text-align:center}
  .case-portrait{max-width:320px;margin:0 auto}
  .case-lead{padding-left:0}
  .case-lead::before{display:none}
  .case-metrics{justify-content:center}
  .story-block,.story-block.reverse{grid-template-columns:1fr}
  .story-block .story-photo,.story-block.reverse .story-photo{order:0}
  .story-block .story-text,.story-block.reverse .story-text{order:0}
  .story-photo{max-width:360px;margin:0 auto;width:100%}
}

@media(max-width:640px){
  body{font-size:15px}
  .pc-only{display:none}
  .sp-only{display:inline}
  .hero{padding:96px 0 70px}
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .hero-visual{order:-1;max-width:400px;margin:0 auto;width:100%}
  .hero-stat{right:0;top:-16px;padding:12px 16px}
  .hero-stat .stat-num{font-size:30px}
  .hero-cta{flex-direction:column}
  .hero-cta .btn{width:100%}
  .section{padding:56px 0}
  .section-title{margin-bottom:32px}
  .worry-grid{grid-template-columns:1fr}
  .solve-grid{grid-template-columns:1fr}
  .feature-list{grid-template-columns:1fr}
  .plan-grid{grid-template-columns:1fr}
  .flow-steps{grid-template-columns:1fr;gap:32px}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .footer-nav{flex-direction:row;flex-wrap:wrap;gap:12px 20px}
  .cta-box{padding:36px 22px}
  .case-hero{padding:24px 20px}
  .story-block{padding:22px 20px}
  .btn-header{display:none}
  .mobile-cta{display:block}
  body{padding-bottom:76px}
  .case-metrics{gap:16px}
  .cm-num{font-size:26px}
}

@media(max-width:380px){
  .hero-title{font-size:25px}
  .case-metrics{gap:12px}
}