/* =========================================================
   Design Tokens
========================================================= */
:root{
  --color-primary-dark:#0B2545;
  --color-primary-mid:#13325E;
  --color-accent-teal:#1B7F8F;
  --color-accent-teal-dark:#13606E;
  --color-accent-light:#E6F2F4;
  --color-surface:#F4F7FB;
  --color-border:#D9E1EC;
  --color-text-main:#1A1A1A;
  --color-text-sub:#5A6573;
  --color-white:#FFFFFF;
  --color-success:#2BB673;
  --color-warning:#E07A1F;
  --radius-card:14px;
  --radius-btn:10px;
  --max-width:1200px;
  --shadow-card:0 6px 24px rgba(11,37,69,0.06);
  --font-jp:"Noto Sans JP",-apple-system,BlinkMacSystemFont,"Hiragino Sans","Yu Gothic",sans-serif;
  --font-num:"Inter","Plus Jakarta Sans",-apple-system,sans-serif;
}

/* =========================================================
   Reset / Base
========================================================= */
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-jp);
  color:var(--color-text-main);
  font-size:16px;
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
  background:var(--color-white);
}
img,svg{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer;border:none;background:none}
ul,ol{margin:0;padding:0;list-style:none}

.container{max-width:var(--max-width);margin:0 auto;padding:0 24px}
.section{padding:96px 0}
.section-title{
  text-align:center;
  font-size:clamp(28px,3vw,36px);
  font-weight:800;
  margin:0 0 56px;
  color:var(--color-primary-dark);
  letter-spacing:.02em;
}
.section-title .num{color:var(--color-accent-teal);font-size:1.4em;margin:0 .15em}

/* =========================================================
   Buttons
========================================================= */
.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:14px 28px;border-radius:var(--radius-btn);
  font-weight:700;font-size:15px;letter-spacing:.04em;
  transition:transform .15s,box-shadow .15s,background .15s,color .15s;
}
.btn:hover{transform:translateY(-1px);box-shadow:0 6px 16px rgba(11,37,69,.12)}
.btn--primary{background:var(--color-primary-dark);color:#fff}
.btn--primary:hover{background:var(--color-primary-mid)}
.btn--accent{background:var(--color-accent-teal);color:#fff}
.btn--accent:hover{background:var(--color-accent-teal-dark)}
.btn--outline{background:#fff;color:var(--color-primary-dark);border:1.5px solid var(--color-primary-dark)}
.btn--outline:hover{background:var(--color-primary-dark);color:#fff}
.btn--white{background:#fff;color:var(--color-primary-dark)}
.btn--ghost-white{background:transparent;color:#fff;border:1.5px solid #fff}
.btn--lg{padding:18px 36px;font-size:16px}

/* =========================================================
   Header
========================================================= */
.header{
  position:sticky;top:0;left:0;right:0;z-index:50;
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--color-border);
}
.header__inner{display:flex;align-items:center;justify-content:space-between;height:72px}
.header__logo img{height:42px;width:auto}
.nav{display:flex;align-items:center;gap:32px}
.nav__list{display:flex;gap:28px}
.nav__list a{font-size:14px;font-weight:500;color:var(--color-text-main)}
.nav__list a:hover{color:var(--color-accent-teal)}
.nav__cta{display:flex;gap:12px}
.nav__cta .btn{padding:10px 20px;font-size:13px}
.nav__toggle{display:none;position:relative}
.nav__toggle-close{display:none}
.nav__toggle[aria-expanded="true"] .nav__toggle-open{display:none}
.nav__toggle[aria-expanded="true"] .nav__toggle-close{display:block}

/* Mobile menu drawer (≤999px のみ表示) */
.mobile-menu{display:none}
.mobile-menu[hidden]{display:none !important}
body.is-menu-open,html:has(body.is-menu-open){overflow:hidden}

/* =========================================================
   Hero
========================================================= */
.hero{
  position:relative;overflow:hidden;
  background:linear-gradient(180deg,#E6F2F4 0%,#FFFFFF 90%);
  padding:0;
}
.hero__inner{
  /* container (max-width:1200, margin:auto, padding:0 24) を継承.
     PC: hero__copy + hero__cta を縦並びでセンタリングし,画像は absolute で右端固定.
     hero に padding を入れず, hero__inner の min-height だけで高さを決めることで,
     画像が hero 全高をフルに使う. */
  position:relative;
  min-height:340px;
  display:flex;
  flex-direction:column;
  justify-content:center;
  align-items:flex-start;
}
.hero__bg{
  /* 画像はコンテナ右端に高さフィット配置.左端のみ 4% の薄いアルファ
     フェードで背景に馴染ませる. 右端は女性が描かれているためフェード無し. */
  position:absolute;top:0;right:0;bottom:0;
  height:100%;width:auto;max-width:none;
  z-index:0;pointer-events:none;user-select:none;
  -webkit-mask-image:linear-gradient(to right, transparent 0%, #000 4%, #000 100%);
          mask-image:linear-gradient(to right, transparent 0%, #000 4%, #000 100%);
}
.hero__copy{position:relative;z-index:1;max-width:480px}
.hero__title{font-size:clamp(24px,2.4vw,34px);line-height:1.5;font-weight:800;margin:0 0 18px;color:var(--color-primary-dark);letter-spacing:.02em}
.hero__lead{font-size:14.5px;line-height:1.7;color:var(--color-text-sub);margin:0 0 22px;max-width:460px}
.hero__chips{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:32px}
.chip{display:inline-flex;align-items:center;gap:6px;padding:8px 16px;border-radius:999px;background:#fff;border:1px solid var(--color-border);font-size:12px;font-weight:600;color:var(--color-text-sub)}
.chip::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--color-accent-teal)}
.hero__cta{position:relative;z-index:1;display:flex;gap:16px;flex-wrap:wrap}

/* =========================================================
   Flow
========================================================= */
.flow{background:var(--color-white)}
.flow__steps{display:grid;grid-template-columns:repeat(5,1fr) ;gap:0;align-items:start}
.flow__step{display:flex;flex-direction:column;align-items:center;text-align:center;padding:0 12px;position:relative}
.flow__step img{width:96px;height:96px;margin-bottom:16px}
.flow__step h3{margin:0 0 6px;font-size:16px;font-weight:700;color:var(--color-primary-dark)}
.flow__step p{margin:0;font-size:13px;color:var(--color-text-sub)}
.flow__arrow{display:flex;align-items:center;justify-content:center;align-self:center;padding-top:32px}
.flow__arrow img{width:48px;height:auto;opacity:.7}

/* =========================================================
   Strengths (4 cards)
========================================================= */
.strengths{background:var(--color-surface)}
.strengths__grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.strength{background:#fff;border-radius:var(--radius-card);padding:32px 24px;box-shadow:var(--shadow-card);position:relative}
.strength__num{
  position:absolute;top:-14px;left:24px;
  width:36px;height:36px;border-radius:50%;
  background:var(--color-accent-teal);color:#fff;font-weight:800;
  display:flex;align-items:center;justify-content:center;font-size:15px;
}
.strength__icon{width:120px;height:120px;margin:8px auto 16px}
.strength h3{margin:0 0 12px;font-size:18px;font-weight:700;color:var(--color-primary-dark);text-align:center;line-height:1.5}
.strength ul{display:grid;gap:8px}
.strength li{display:flex;gap:8px;font-size:13px;color:var(--color-text-sub);line-height:1.6}
.strength li::before{content:"";flex:0 0 18px;height:18px;margin-top:2px;background-image:url("../icons/check.svg");background-size:contain;background-repeat:no-repeat}

/* =========================================================
   Targets (3 cards)
========================================================= */
.targets__grid{display:grid;grid-template-columns:repeat(3,1fr);gap:32px}
.target{background:#fff;border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-card)}
.target__img{aspect-ratio:3/2;background:var(--color-surface);background-size:cover;background-position:center}
.target__body{padding:24px}
.target h3{margin:0 0 10px;font-size:16px;font-weight:700;color:var(--color-primary-dark);line-height:1.6}
.target p{margin:0;font-size:14px;color:var(--color-text-sub)}

/* =========================================================
   Pricing
========================================================= */
.pricing{background:var(--color-white)}
.pricing__lead{text-align:center;color:var(--color-text-sub);font-size:15px;line-height:1.8;margin:-32px auto 48px;max-width:680px}
.pricing__grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:stretch}
.plan{
  position:relative;background:#fff;border:1.5px solid var(--color-border);
  border-radius:var(--radius-card);padding:36px 28px;
  display:flex;flex-direction:column;
  box-shadow:var(--shadow-card);
}
.plan--featured{
  border-color:var(--color-accent-teal);
  box-shadow:0 12px 32px rgba(27,127,143,.16);
  transform:translateY(-4px);
}
.plan__badge{
  position:absolute;top:-14px;left:50%;transform:translateX(-50%);
  background:var(--color-accent-teal);color:#fff;
  font-size:12px;font-weight:700;letter-spacing:.08em;
  padding:6px 16px;border-radius:999px;
}
.plan__head{margin-bottom:20px}
.plan__head h3{margin:0 0 6px;font-size:22px;font-weight:800;color:var(--color-primary-dark)}
.plan__target{margin:0;font-size:13px;color:var(--color-text-sub);line-height:1.6}
.plan__price{
  padding:20px 0;margin-bottom:20px;
  border-top:1px solid var(--color-border);
  border-bottom:1px solid var(--color-border);
  text-align:center;
}
.plan__price-num{
  font-family:var(--font-num);font-weight:800;
  font-size:30px;color:var(--color-primary-dark);
  letter-spacing:.02em;
}
.plan__price-unit{
  font-size:14px;font-weight:600;color:var(--color-text-sub);
  margin-left:4px;
}
.plan__features{display:grid;gap:10px;margin:0 0 28px;flex:1}
.plan__features li{
  display:flex;gap:8px;align-items:flex-start;
  font-size:13.5px;color:var(--color-text-main);line-height:1.6;
}
.plan__features li::before{
  content:"";flex:0 0 18px;height:18px;margin-top:2px;
  background-image:url("../icons/check.svg");
  background-size:contain;background-repeat:no-repeat;
}
.pricing__note{
  text-align:center;font-size:12.5px;color:var(--color-text-sub);
  margin:40px auto 0;max-width:720px;line-height:1.7;
}

/* =========================================================
   Operation
========================================================= */
.operation{background:var(--color-surface)}
.operation__inner{display:grid;grid-template-columns:.8fr 1.2fr;gap:64px;align-items:center}
.operation__list{display:grid;gap:20px}
.op{display:flex;gap:16px;align-items:flex-start}
.op__icon{flex:0 0 56px;width:56px;height:56px;background:#fff;border-radius:12px;display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow-card)}
.op__icon img{width:32px;height:32px}
.op h4{margin:0 0 4px;font-size:15px;font-weight:700;color:var(--color-primary-dark)}
.op p{margin:0;font-size:13px;color:var(--color-text-sub)}
.operation__visual{background:#fff;border-radius:var(--radius-card);padding:0;box-shadow:var(--shadow-card);overflow:hidden}
.operation__visual img{width:100%;display:block}

/* =========================================================
   Series Banner
========================================================= */
.series__inner{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;padding:32px 0}
.series h2{margin:0 0 16px;font-size:26px;font-weight:800;color:var(--color-primary-dark)}
.series p{margin:0;color:var(--color-text-sub);font-size:15px}
.series__msg{background:#fff;border:1.5px solid var(--color-accent-teal);border-radius:var(--radius-card);padding:28px 32px;display:flex;gap:20px;align-items:center}
.series__msg svg{flex:0 0 56px}
.series__msg p{font-size:15px;color:var(--color-primary-dark);line-height:1.7;margin:0;font-weight:600}

/* =========================================================
   CTA Banner
========================================================= */
.cta-banner{
  position:relative;overflow:hidden;
  background:linear-gradient(120deg,#0B2545 0%,#13325E 100%);
  color:#fff;padding:80px 0;
}
.cta-banner::before{
  content:"";position:absolute;inset:0;
  background-image:url("../images/cta_sparkles.svg");
  background-size:cover;background-repeat:no-repeat;opacity:.85;pointer-events:none;
}
.cta-banner__inner{position:relative;display:grid;grid-template-columns:1.3fr 1fr;gap:32px;align-items:center}
.cta-banner h2{margin:0 0 28px;font-size:clamp(24px,3vw,34px);font-weight:800;line-height:1.45}
.cta-banner__buttons{display:flex;gap:16px;flex-wrap:wrap}
.cta-banner__illust{justify-self:end;max-width:380px;width:100%}

/* =========================================================
   Footer
========================================================= */
.footer{background:var(--color-white);border-top:1px solid var(--color-border);padding:64px 0 32px;color:var(--color-text-sub);font-size:14px}
.footer__inner{display:grid;grid-template-columns:1.2fr repeat(3,1fr);gap:48px}
.footer__brand img{height:42px;margin-bottom:16px}
.footer__brand p{font-size:13px;line-height:1.7;color:var(--color-text-sub);margin:0 0 20px}
.footer__col h4{margin:0 0 14px;font-size:13px;font-weight:700;color:var(--color-primary-dark)}
.footer__col li{margin-bottom:10px}
.footer__col a{color:var(--color-text-sub)}
.footer__col a:hover{color:var(--color-accent-teal)}
.footer__copy{margin-top:48px;padding-top:24px;border-top:1px solid var(--color-border);font-size:12px;text-align:center}

/* =========================================================
   Responsive
========================================================= */
@media (max-width:999px){
  /* 1000px 未満は SP レイアウトに切替 (単一ブレイクポイント).
     hero は テキスト → 画像 → CTA を縦に積み重ねるシンプル構造. */
  .section{padding:64px 0}
  .nav__list,.nav__cta{display:none}
  .nav__toggle{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;border-radius:8px;border:1px solid var(--color-border);background:#fff}
  /* mobile menu drawer — ヘッダー(72px)下から画面下端まで全画面表示 */
  .mobile-menu{
    display:block;position:fixed;top:72px;left:0;right:0;bottom:0;
    height:calc(100vh - 72px);
    height:calc(100dvh - 72px);
    background:#fff;z-index:49;overflow-y:auto;
    padding:32px 24px 40px;
    box-shadow:0 8px 24px rgba(11,37,69,.08);
    animation:mm-fade .18s ease-out;
  }
  @keyframes mm-fade{from{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:translateY(0)}}
  .mobile-menu__list{display:grid;gap:4px;margin-bottom:24px}
  .mobile-menu__list a{
    display:block;padding:14px 12px;font-size:16px;font-weight:600;
    color:var(--color-primary-dark);
    border-bottom:1px solid var(--color-border);
  }
  .mobile-menu__cta{display:flex;flex-direction:column;gap:12px;margin-top:8px}
  .mobile-menu__cta .btn{width:100%;justify-content:center;padding:14px 24px}
  /* SP の flow: 1行目 LINE/AI読み取り/自動仕訳 (3列), 2行目 Drive/freee (2列) */
  .flow__steps{grid-template-columns:repeat(6,1fr);gap:28px 8px}
  .flow__arrow{display:none}
  .flow__step{grid-column:span 2;padding:0 4px}
  .flow__step:nth-child(7){grid-column:2 / span 2}  /* Drive保存 (4番目のstep, 7番目の子) */
  .flow__step:nth-child(9){grid-column:4 / span 2}  /* freee連携 (5番目のstep, 9番目の子) */
  .flow__step img{width:64px;height:64px;margin-bottom:10px}
  .flow__step h3{font-size:14px}
  .flow__step p{font-size:12px;line-height:1.5}
  /* SP の pricing: 縦1列・featured の浮き上がり解除 */
  .pricing__grid{grid-template-columns:1fr;gap:32px}
  .pricing__lead{font-size:14px;margin:-16px auto 40px}
  .plan{padding:28px 22px}
  .plan--featured{transform:none}
  .plan__head h3{font-size:20px}
  .plan__price-num{font-size:20px}
  /* SP の strengths: 2列×2行 */
  .strengths__grid{grid-template-columns:repeat(2,1fr);gap:32px 12px}
  .strength{padding:24px 14px}
  .strength__icon{width:80px;height:80px;margin:4px auto 12px}
  .strength h3{font-size:15px;margin-bottom:10px;line-height:1.45}
  .strength li{font-size:12px;line-height:1.55}
  .targets__grid{grid-template-columns:1fr;gap:24px}
  .operation__inner,.series__inner,.cta-banner__inner{grid-template-columns:1fr;gap:32px}
  .footer__inner{grid-template-columns:1fr;gap:32px}
  .cta-banner__illust{justify-self:center}

  .hero{padding:32px 0 0;overflow:hidden}
  .hero__inner{
    position:relative;
    min-height:auto;
    display:flex;flex-direction:column;align-items:stretch;
    padding:0 24px;
  }
  .hero__copy{order:1;position:relative;z-index:1;max-width:none;padding:0}
  .hero__title{font-size:22px;line-height:1.5;margin-bottom:12px}
  .hero__lead{font-size:13.5px;line-height:1.7;margin-bottom:0;max-width:none}
  .hero picture{order:2;display:block;margin:20px -24px 0}
  .hero__bg{
    position:static;
    width:100%;height:auto;display:block;
    margin:0;
    -webkit-mask-image:none;mask-image:none;
  }
  .hero__cta{
    order:3;position:relative;z-index:1;
    flex-direction:column;gap:10px;width:100%;
    margin:20px 0 0;padding:0 0 32px;
  }
  .hero__cta .btn{width:100%;justify-content:center}
}

/* =========================================================
   Form pages (contact / download)
========================================================= */
.form-hero{
  background:linear-gradient(180deg,#E6F2F4 0%,#FFFFFF 100%);
  padding:64px 0 32px;
  text-align:center;
}
.form-eyebrow{
  display:inline-block;
  font-family:var(--font-num);
  font-weight:700;
  letter-spacing:.2em;
  font-size:12px;
  color:var(--color-accent-teal);
  margin:0 0 12px;
}
.form-hero h1{
  font-size:clamp(26px,3vw,40px);
  font-weight:800;
  margin:0 0 18px;
  color:var(--color-primary-dark);
  letter-spacing:.02em;
  line-height:1.4;
}
.form-hero .lead{
  font-size:16px;
  color:var(--color-text-sub);
  max-width:640px;
  margin:0 auto 28px;
  line-height:1.8;
}
.form-steps{
  display:flex;
  flex-wrap:wrap;
  justify-content:center;
  gap:12px;
  max-width:720px;
  margin:0 auto;
}
.form-steps li{
  background:#fff;
  border:1px solid var(--color-border);
  border-radius:999px;
  padding:8px 18px;
  font-size:13px;
  font-weight:600;
  color:var(--color-primary-dark);
}
.form-steps li::before{
  content:counter(step);
  counter-increment:step;
  display:inline-flex;align-items:center;justify-content:center;
  width:22px;height:22px;border-radius:50%;
  background:var(--color-accent-teal);color:#fff;
  font-family:var(--font-num);font-weight:700;font-size:12px;
  margin-right:8px;
}
.form-steps{counter-reset:step}

.form-section{padding:48px 0 96px;background:var(--color-surface)}
.form-grid{display:grid;grid-template-columns:1.4fr .9fr;gap:32px;align-items:start}
.form-card{
  background:#fff;
  border:1px solid var(--color-border);
  border-radius:18px;
  box-shadow:var(--shadow-card);
  padding:36px;
}
.form-field{display:block;margin-bottom:22px}
.form-field:last-of-type{margin-bottom:8px}
.form-field label{
  display:flex;align-items:center;gap:8px;
  font-weight:700;color:var(--color-primary-dark);font-size:14px;
  margin-bottom:8px;
}
.badge-required,.badge-optional{
  font-size:11px;font-weight:700;padding:2px 8px;border-radius:999px;letter-spacing:.04em;
}
.badge-required{background:var(--color-accent-teal);color:#fff}
.badge-optional{background:var(--color-accent-light);color:var(--color-accent-teal-dark)}

.form-field input,
.form-field textarea,
.form-field select{
  width:100%;
  padding:13px 14px;
  border:1.5px solid var(--color-border);
  border-radius:10px;
  font:inherit;
  background:#fff;
  color:var(--color-text-main);
  transition:border .15s,box-shadow .15s;
}
.form-field textarea{resize:vertical;min-height:140px}
.form-field input:focus,
.form-field textarea:focus,
.form-field select:focus{
  outline:none;
  border-color:var(--color-accent-teal);
  box-shadow:0 0 0 4px rgba(27,127,143,.15);
}
.form-field .help{font-size:12px;color:var(--color-text-sub);margin-top:6px}
.form-field .err{font-size:12px;color:#D14545;margin-top:6px;font-weight:600}

.form-agree{
  display:flex;gap:10px;align-items:flex-start;
  font-size:13px;color:var(--color-text-sub);
  margin:8px 0 24px;
  line-height:1.7;
}
.form-agree input[type=checkbox]{
  width:18px;height:18px;margin-top:3px;flex-shrink:0;accent-color:var(--color-accent-teal);
}
.form-agree a{color:var(--color-accent-teal);text-decoration:underline;font-weight:700}

.form-submit{
  display:flex;justify-content:center;
}
.form-submit .btn{min-width:280px;justify-content:center}

.form-note{font-size:12px;color:var(--color-text-sub);text-align:center;margin-top:16px}

.form-side{
  position:sticky;top:96px;
  display:flex;flex-direction:column;gap:20px;
}
.form-side .side-card{
  background:#fff;
  border:1px solid var(--color-border);
  border-radius:14px;
  padding:24px;
  box-shadow:var(--shadow-card);
}
.form-side h3{
  margin:0 0 14px;font-size:15px;color:var(--color-primary-dark);
  display:flex;align-items:center;gap:8px;
}
.form-side ul{display:flex;flex-direction:column;gap:10px}
.form-side ul li{font-size:13.5px;color:var(--color-text-sub);padding-left:20px;position:relative;line-height:1.6}
.form-side ul li::before{
  content:"";position:absolute;left:0;top:.5em;
  width:10px;height:10px;border-radius:50%;
  background:var(--color-accent-light);
  border:2px solid var(--color-accent-teal);
}

.form-thanks{
  background:#fff;border:1px solid var(--color-border);border-radius:18px;
  box-shadow:var(--shadow-card);
  padding:48px 36px;text-align:center;
}
.form-thanks .icon-circle{
  width:64px;height:64px;border-radius:50%;
  background:var(--color-accent-light);color:var(--color-accent-teal);
  display:inline-flex;align-items:center;justify-content:center;margin:0 auto 16px;
  font-size:30px;font-weight:800;
}
.form-thanks h2{margin:0 0 12px;color:var(--color-primary-dark);font-size:22px}
.form-thanks p{color:var(--color-text-sub);margin:0 0 8px}
.form-thanks .btn{margin-top:24px}

.doc-cover{
  background:linear-gradient(135deg,var(--color-primary-dark),var(--color-accent-teal));
  border-radius:14px;color:#fff;padding:24px;
  display:flex;flex-direction:column;gap:8px;
  box-shadow:var(--shadow-card);
}
.doc-cover .label{font-family:var(--font-num);letter-spacing:.2em;font-size:11px;opacity:.8}
.doc-cover .title{font-size:18px;font-weight:800;line-height:1.45}
.doc-cover .pages{font-size:12px;opacity:.85;margin-top:6px}

@media (max-width:900px){
  .form-grid{grid-template-columns:1fr}
  .form-side{position:static}
  .form-card{padding:24px}
}