/* FT-ON.com — v2 "White / Violet" Apple-minimal
   Palette: pure white base, #f5f5f7 alt sections, near-black text, violet accent
   Type: system SF stack + Inter + Noto Sans JP / 大きな余白・大きな見出し・ピルボタン */

:root{
  --ink:#1d1d1f;
  --paper:#ffffff;
  --paper-2:#f5f5f7;
  --violet:#6a3de8;
  --violet-deep:#5427c9;
  --violet-soft:#efe9ff;
  --violet-grad:linear-gradient(90deg,#7a4bf0,#a06bff);
  --line:#e8e8ed;
  --muted:#6e6e73;
  --dark-bg:#000000;
  --dark-panel:#161617;
  --dark-text:#f5f5f7;
  --dark-muted:#86868b;
  --maxw:1040px;
  --radius:20px;
}

*{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;}
body{
  /* 和文はOS標準を使う(Webフォント配信なし)。欧文のみInterを読み込む */
  font-family:-apple-system,BlinkMacSystemFont,"SF Pro JP","SF Pro Display",Inter,
    "Hiragino Kaku Gothic ProN","Hiragino Sans","Yu Gothic UI","Yu Gothic",Meiryo,"Noto Sans JP",sans-serif;
  font-size:17px;line-height:1.85;color:var(--ink);background:var(--paper);
  -webkit-font-smoothing:antialiased;letter-spacing:.01em;
}
/* height:auto がないと、width/height属性を持つ画像が縦に引き伸ばされる */
img{max-width:100%;height:auto;display:block;}
a{color:inherit;}
:focus-visible{outline:3px solid var(--violet);outline-offset:2px;}
.serif{font-family:inherit;} /* v1互換: 明朝指定は無効化 */
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px;}

/* ---------- header (Apple風の薄いフロストバー) ---------- */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.72);backdrop-filter:saturate(180%) blur(20px);border-bottom:1px solid rgba(0,0,0,.06);}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;height:52px;}
.logo{font-weight:700;font-size:17px;letter-spacing:.06em;text-decoration:none;flex:none;white-space:nowrap;
  display:inline-flex;align-items:center;gap:9px;}
.logo img{width:26px;height:26px;border-radius:7px;flex:none;}
.logo em{font-style:normal;background:var(--violet-grad);-webkit-background-clip:text;background-clip:text;color:transparent;}
.gnav{display:flex;gap:2px;}
.gnav a{font-size:12.5px;letter-spacing:.06em;text-decoration:none;color:var(--muted);padding:7px 12px;border-radius:980px;white-space:nowrap;transition:color .2s;}
.gnav a:hover{color:var(--ink);}
.gnav a[aria-current="page"]{color:var(--ink);font-weight:600;}
.header-cta{flex:none;font-size:12.5px;font-weight:600;text-decoration:none;background:var(--violet);color:#fff;padding:7px 16px;border-radius:980px;letter-spacing:.04em;transition:background .2s;}
.header-cta:hover{background:var(--violet-deep);}

/* ハンバーガー(モバイルのみ表示。デスクトップでは常に非表示) */
.nav-toggle{display:none;flex:none;width:44px;height:44px;padding:0;margin-right:-10px;
  background:none;border:0;cursor:pointer;align-items:center;justify-content:center;flex-direction:column;gap:5px;}
.nav-toggle span{display:block;width:20px;height:1.5px;background:var(--ink);border-radius:2px;transition:transform .25s ease,opacity .2s ease;}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6.5px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6.5px) rotate(-45deg);}
body.dark .nav-toggle span{background:var(--dark-text);}

/* ---------- hero (中央寄せ・大型見出し) ---------- */
.hero{padding:112px 0 72px;text-align:center;}
.hero .eyebrow{justify-content:center;}
/* word-break:auto-phrase = 和文を文節で折り返す(非対応ブラウザは通常折り返しに劣化) */
.hero h1{font-weight:700;font-size:clamp(36px,6vw,64px);line-height:1.28;letter-spacing:-.015em;word-break:auto-phrase;}
.hero .lead,h2.title{word-break:auto-phrase;}
.hero h1 .hl{background:var(--violet-grad);-webkit-background-clip:text;background-clip:text;color:transparent;}
.hero .lead{margin:22px auto 0;font-size:clamp(16px,2.2vw,20px);color:var(--muted);max-width:34em;font-weight:400;}
.hero .cta-row{margin-top:36px;display:flex;gap:14px;flex-wrap:wrap;justify-content:center;}

/* signature: tuning line */
.tuning-line{width:min(720px,90%);height:56px;margin:56px auto 0;display:block;}
.tuning-line path{fill:none;stroke:var(--violet);stroke-width:1.5;}
.tuning-line .noisy{opacity:.9;animation:settle 3.2s ease forwards;}
.tuning-line .calm{opacity:0;animation:rise 3.2s ease forwards;}
@keyframes settle{to{opacity:0;}}
@keyframes rise{to{opacity:.9;}}
@media (prefers-reduced-motion:reduce){
  .tuning-line .noisy{animation:none;opacity:0;}
  .tuning-line .calm{animation:none;opacity:.9;}
}

/* ---------- media placeholder(画像/動画 仮スロット) ---------- */
.media{position:relative;border-radius:var(--radius);overflow:hidden;background:
  radial-gradient(120% 120% at 85% 10%, var(--violet-soft) 0%, #f4f1fb 40%, var(--paper-2) 100%);
  display:flex;align-items:center;justify-content:center;}
/* 素材はスロットを必ず埋める(比率が多少ずれても余白や歪みを出さない) */
.media img,.media video{width:100%;height:100%;object-fit:cover;}

/* ---- 写真に重ねる「光の線」(ヒーロー) ----
   写真の上を細い光がゆっくり流れる。動きは画面内に入っている間だけ。
   preserveAspectRatio は slice にして、写真の object-fit:cover と切り取りを揃える。 */
.media .fx{position:absolute;inset:0;width:100%;height:100%;pointer-events:none;}
.fx-l{
  fill:none;stroke:var(--violet);stroke-width:1.6;stroke-linecap:round;opacity:.4;
  stroke-dasharray:220 1600;
  animation-name:fx-flow;animation-timing-function:linear;
  animation-iteration-count:infinite;animation-play-state:paused;
}
.media.in-view .fx-l{animation-play-state:running;}
@keyframes fx-flow{from{stroke-dashoffset:1820;}to{stroke-dashoffset:0;}}
body.dark .fx-l{stroke:#a06bff;opacity:.6;stroke-width:2;}
.media span{font-size:12.5px;color:var(--violet-deep);letter-spacing:.08em;font-weight:600;background:rgba(255,255,255,.75);padding:6px 14px;border-radius:980px;backdrop-filter:blur(4px);}
.media.hero-media{width:min(920px,100%);margin:56px auto 0;aspect-ratio:16/9;}
.media.card-media{aspect-ratio:4/3;margin-bottom:18px;border-radius:14px;}
.media.figure{aspect-ratio:16/10;margin-bottom:18px;border-radius:14px;}
.media.dark{background:radial-gradient(120% 120% at 80% 15%, #2a1a52 0%, #120b26 45%, #000 100%);}
.media.dark span{background:rgba(255,255,255,.12);color:#cbb7ff;}

/* ---------- buttons (ピル型) ---------- */
.btn{display:inline-block;text-decoration:none;font-weight:600;letter-spacing:.02em;border-radius:980px;text-align:center;transition:all .2s;}
.btn-primary{background:var(--violet);color:#fff;padding:15px 34px;font-size:16px;}
.btn-primary:hover{background:var(--violet-deep);}
.btn-ghost{border:1.5px solid var(--line);color:var(--ink);padding:14px 32px;font-size:16px;background:#fff;}
.btn-ghost:hover{border-color:var(--violet);color:var(--violet-deep);}
.btn-wide{display:block;max-width:400px;margin:0 auto;}

/* ---------- sections ---------- */
section.block{padding:96px 0;}
section.block.alt{background:var(--paper-2);}
.eyebrow{font-size:12px;letter-spacing:.24em;color:var(--violet);font-weight:700;margin-bottom:14px;display:flex;}
h2.title{font-weight:700;font-size:clamp(28px,4vw,40px);line-height:1.3;letter-spacing:-.01em;margin-bottom:24px;}
.section-lead{color:var(--muted);max-width:44em;margin-bottom:40px;font-size:16.5px;}

/* ---------- cards / grids ---------- */
.grid{display:grid;gap:22px;}
.grid.c2{grid-template-columns:repeat(2,1fr);}
.grid.c3{grid-template-columns:repeat(3,1fr);}
.grid.c4{grid-template-columns:repeat(4,1fr);}
@media(max-width:820px){.grid.c3,.grid.c4{grid-template-columns:1fr;}.grid.c2{grid-template-columns:1fr;}}
.card{background:#fff;border-radius:var(--radius);padding:30px 28px;box-shadow:0 1px 2px rgba(0,0,0,.04),0 8px 24px rgba(0,0,0,.05);}
section.block:not(.alt) .card{background:var(--paper-2);box-shadow:none;}
.card h3{font-weight:700;font-size:20px;margin-bottom:10px;letter-spacing:-.005em;}
.card p{font-size:15px;color:var(--muted);}
.card .tags{margin-top:14px;display:flex;flex-wrap:wrap;gap:6px;}
.card .tags span{font-size:12px;color:var(--violet-deep);background:var(--violet-soft);border-radius:980px;padding:3px 12px;font-weight:500;}

/* branch cards on TOP */
.branch{display:flex;flex-direction:column;}
.branch .price{font-size:15px;color:var(--ink);margin-top:8px;}
.branch .price strong{font-size:26px;font-weight:700;letter-spacing:-.01em;}
.branch .btn{align-self:flex-start;margin-top:22px;padding:12px 26px;font-size:15px;}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;counter-reset:step;}
@media(max-width:820px){.steps{grid-template-columns:1fr;}}
.step{background:var(--paper-2);border-radius:var(--radius);padding:30px 28px;position:relative;}
section.block.alt .step{background:#fff;box-shadow:0 1px 2px rgba(0,0,0,.04),0 8px 24px rgba(0,0,0,.05);}
.step::before{counter-increment:step;content:counter(step,decimal-leading-zero);color:var(--violet);font-size:15px;font-weight:700;letter-spacing:.12em;display:block;margin-bottom:12px;}
.step h3{font-size:18px;font-weight:700;margin-bottom:8px;}
.step p{font-size:14.5px;color:var(--muted);}

/* ---------- pricing ---------- */
.price-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;align-items:stretch;}
@media(max-width:820px){.price-cards{grid-template-columns:1fr;}}
.price-card{background:#fff;border-radius:var(--radius);padding:34px 30px;text-align:center;display:flex;flex-direction:column;box-shadow:0 1px 2px rgba(0,0,0,.04),0 8px 24px rgba(0,0,0,.05);}
section.block:not(.alt) .price-card{background:var(--paper-2);box-shadow:none;}
.price-card.reco{position:relative;box-shadow:0 0 0 2px var(--violet),0 12px 32px rgba(106,61,232,.18);}
.price-card.reco::before{content:"オススメ";position:absolute;top:-13px;left:50%;transform:translateX(-50%);background:var(--violet);color:#fff;font-size:12px;font-weight:700;padding:3px 16px;border-radius:980px;letter-spacing:.1em;}
.price-card h3{font-size:17px;letter-spacing:.1em;margin-bottom:16px;font-weight:700;color:var(--muted);}
.price-card .amount{font-size:38px;line-height:1.15;font-weight:700;letter-spacing:-.02em;}
.price-card .amount small{font-size:14px;color:var(--muted);font-weight:400;}
.price-card .yearly{font-size:13.5px;color:var(--muted);margin-top:8px;}
.price-card ul{list-style:none;margin-top:22px;text-align:left;font-size:14.5px;color:var(--muted);}
.price-card ul li{padding:9px 0;border-top:1px solid var(--line);}
.price-card ul li strong{color:var(--ink);}

/* ---------- notice / info panels ---------- */
.panel{background:var(--paper-2);border-radius:var(--radius);padding:28px 30px;margin-top:24px;}
section.block.alt .panel{background:#fff;}
.panel h3{font-size:16.5px;font-weight:700;margin-bottom:8px;}
.panel p{font-size:15px;color:var(--muted);}
.guarantee{background:var(--violet-soft);border-radius:var(--radius);padding:40px 32px;text-align:center;}
.guarantee h3{font-size:22px;margin-bottom:10px;font-weight:700;letter-spacing:-.005em;}
.guarantee p{font-size:14.5px;color:#4a3d6e;}
.guarantee a{color:var(--violet-deep);}

/* ---------- FAQ ---------- */
.faq details{background:#fff;border-radius:16px;margin-bottom:12px;box-shadow:0 1px 2px rgba(0,0,0,.04);}
section.block:not(.alt) .faq details{background:var(--paper-2);box-shadow:none;}
.faq summary{cursor:pointer;list-style:none;padding:20px 26px;font-weight:600;font-size:16px;display:flex;gap:12px;}
.faq summary::before{content:"Q";color:var(--violet);font-weight:700;flex:none;}
.faq summary::-webkit-details-marker{display:none;}
.faq details p{padding:0 26px 22px 50px;font-size:15px;color:var(--muted);}
.faq details a{color:var(--violet-deep);}

/* ---------- photo guide ---------- */
.photo-guide{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;}
@media(max-width:820px){.photo-guide{grid-template-columns:1fr;}}
.pg{border-radius:var(--radius);padding:22px;background:#fff;font-size:14.5px;text-align:center;box-shadow:0 1px 2px rgba(0,0,0,.04),0 8px 24px rgba(0,0,0,.05);}
section.block:not(.alt) .pg{background:var(--paper-2);box-shadow:none;}
.pg .mark{font-size:20px;display:block;margin:8px 0 2px;font-weight:700;}
.pg.ok .mark{color:var(--violet);}
.pg.ng .mark{color:#b04a3e;}

/* ---------- dark (PRO / Apple Pro風の黒) ---------- */
body.dark{background:var(--dark-bg);color:var(--dark-text);}
body.dark .site-header{background:rgba(0,0,0,.72);border-color:rgba(255,255,255,.08);}
body.dark .logo{color:var(--dark-text);}
body.dark .gnav a{color:var(--dark-muted);}
body.dark .gnav a:hover,body.dark .gnav a[aria-current="page"]{color:var(--dark-text);}
body.dark .hero .lead,body.dark .section-lead,body.dark .card p,body.dark .price-card .yearly,body.dark .step p,body.dark .note-s{color:var(--dark-muted);}
body.dark .card,body.dark .price-card,body.dark .step,body.dark .panel{background:var(--dark-panel);box-shadow:none;}
body.dark section.block:not(.alt) .card,body.dark section.block:not(.alt) .price-card,body.dark .step{background:var(--dark-panel);}
body.dark .card .tags span{background:rgba(122,75,240,.18);color:#cbb7ff;}
body.dark .price-card h3{color:var(--dark-muted);}
body.dark .price-card ul{color:var(--dark-muted);}
body.dark .price-card ul li{border-color:#2c2c2e;}
body.dark .price-card ul li strong{color:var(--dark-text);}
body.dark .btn-ghost{background:transparent;border-color:#3a3a3c;color:var(--dark-text);}
body.dark .site-footer{background:#0a0a0a;border-color:rgba(255,255,255,.08);}
body.dark .site-footer a{color:var(--dark-muted);}

/* ---------- footer ---------- */
.site-footer{background:var(--paper-2);border-top:1px solid var(--line);padding:52px 0 40px;margin-top:48px;}
.site-footer .cols{display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap;align-items:center;}
.site-footer nav{display:flex;gap:20px;flex-wrap:wrap;}
.site-footer a{font-size:13px;color:var(--muted);text-decoration:none;}
.site-footer a:hover{color:var(--violet-deep);}
.site-footer .legal{margin-top:26px;font-size:12.5px;color:var(--muted);display:flex;gap:18px;flex-wrap:wrap;}
.site-footer .copy{margin-top:20px;font-size:12px;color:var(--muted);letter-spacing:.04em;}

/* ---------- misc ---------- */
.center{text-align:center;}
.mt-l{margin-top:48px;}
.note-s{font-size:13px;color:var(--muted);margin-top:16px;}
.note-s a{color:var(--violet-deep);}
.divider{height:1px;background:var(--line);max-width:var(--maxw);margin:0 auto;}
.compare-hint{background:#fff;border-radius:var(--radius);padding:26px 30px;font-size:15px;display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;box-shadow:0 1px 2px rgba(0,0,0,.04),0 8px 24px rgba(0,0,0,.05);}
section.block:not(.alt) .compare-hint{background:var(--paper-2);box-shadow:none;}
/* 表は必ずこのラッパーに入れる。狭い画面でページ全体が横スクロールするのを防ぐ */
.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch;border-radius:var(--radius);}
.table-scroll.wide table.spec{min-width:560px;}
.scroll-hint{display:none;}
table.spec{width:100%;border-collapse:separate;border-spacing:0;font-size:15px;background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:0 1px 2px rgba(0,0,0,.04);}
table.spec th,table.spec td{border-bottom:1px solid var(--line);padding:16px 14px;text-align:center;}
table.spec tr:last-child th,table.spec tr:last-child td{border-bottom:none;}
table.spec th{background:var(--paper-2);font-weight:600;}
body.dark table.spec{background:var(--dark-panel);box-shadow:none;}
body.dark table.spec th{background:#1f1f21;}
body.dark table.spec th,body.dark table.spec td{border-color:#2c2c2e;}

/* ---------- page transitions (View Transitions API / 非対応ブラウザは通常遷移に劣化) ---------- */
@view-transition { navigation: auto; }
.site-header{ view-transition-name: site-header; } /* ヘッダーは遷移中も安定させる */
::view-transition-old(root){ animation: vt-out .26s ease both; }
::view-transition-new(root){ animation: vt-in .38s cubic-bezier(.2,.6,.2,1) both; }
@keyframes vt-out{ to{ opacity:0; transform:translateY(-6px); } }
@keyframes vt-in{ from{ opacity:0; transform:translateY(10px); } }

/* ---------- 初回表示: ヒーローの段差フェードイン ---------- */
.hero h1,.hero .lead,.hero .cta-row,.hero .eyebrow{ animation: rise-in .6s cubic-bezier(.2,.6,.2,1) both; }
.hero .lead{ animation-delay:.07s; }
.hero .cta-row{ animation-delay:.14s; }
@keyframes rise-in{ from{ opacity:0; transform:translateY(14px); } }

/* ---------- スクロール出現(JSが .reveal を付与。JS無効時は通常表示) ---------- */
.reveal{ opacity:0; transform:translateY(16px); transition:opacity .5s ease, transform .5s ease; }
.reveal.in-view{ opacity:1; transform:none; }

/* ---------- モバイル追従CTA(長いページで申込に戻れるように) ---------- */
.sticky-cta{
  position:fixed;left:0;right:0;bottom:0;z-index:60;display:none;
  padding:10px 16px calc(10px + env(safe-area-inset-bottom));
  background:rgba(255,255,255,.92);backdrop-filter:saturate(180%) blur(20px);
  border-top:1px solid var(--line);
  transform:translateY(110%);transition:transform .28s cubic-bezier(.2,.6,.2,1);
}
.sticky-cta.show{transform:none;}
.sticky-cta .btn{display:block;width:100%;padding:14px 20px;font-size:16px;min-height:48px;}
body.has-sticky-cta .site-footer{padding-bottom:96px;}

/* ---------- モバイル(820px以下) ---------- */
@media(max-width:820px){
  .site-header .wrap{height:56px;gap:10px;}
  .nav-toggle{display:flex;}

  /* ナビは横スクロールの帯をやめ、ヘッダー直下のドロワーに切り替える */
  /* 親(.site-header)がbackdrop-filterを持つため、ドロワー側は不透明背景にする
     (入れ子のbackdrop-filterは背面が透けて文字が重なって見える) */
  .gnav{
    position:absolute;top:100%;left:0;right:0;display:none;flex-direction:column;gap:0;
    padding:6px 0 10px;background:var(--paper);
    border-bottom:1px solid var(--line);box-shadow:0 12px 24px rgba(0,0,0,.08);
  }
  .gnav.open{display:flex;}
  .gnav a{display:flex;align-items:center;min-height:48px;padding:0 24px;
    font-size:15px;letter-spacing:.08em;border-radius:0;}
  .gnav a[aria-current="page"]{color:var(--violet-deep);background:var(--violet-soft);}
  body.dark .gnav{background:var(--dark-bg);border-color:rgba(255,255,255,.08);}
  body.dark .gnav a[aria-current="page"]{background:rgba(122,75,240,.18);color:#cbb7ff;}

  /* タップ領域を44px以上に。ナビが絶対配置になるぶんCTAを右端へ寄せる */
  .header-cta{display:flex;align-items:center;min-height:44px;padding:0 18px;font-size:14px;margin-left:auto;}

  /* 見出しが1〜2文字だけ次行に落ちるのを防ぐ */
  .hero h1{font-size:clamp(27px,7.2vw,64px);line-height:1.35;}
  .hero .lead{font-size:16px;}

  .sticky-cta{display:block;}
  .scroll-hint{display:block;}

  /* 縦に長くなりすぎないよう余白を圧縮 */
  .hero{padding:72px 0 56px;}
  .media.hero-media{margin-top:36px;}
  .tuning-line{margin-top:36px;}
  section.block{padding:64px 0;}
  .site-footer{padding:40px 0 32px;margin-top:32px;}

  /* 小さすぎる文字の底上げ(主要ターゲットの可読性) */
  .note-s{font-size:14px;}
  .site-footer a{font-size:14px;}
  .site-footer .legal{font-size:13.5px;gap:14px;}
  .card p,.panel p,.faq details p{font-size:15.5px;}
  .step p{font-size:15px;}
  .price-card ul{font-size:15px;}
  .price-card h3{color:var(--ink);font-size:18px;}
}

/* ---------- reduced-motion: すべて即時表示 ---------- */
@media (prefers-reduced-motion:reduce){
  ::view-transition-old(root),::view-transition-new(root){ animation:none; }
  .hero h1,.hero .lead,.hero .cta-row,.hero .eyebrow{ animation:none; }
  .reveal{ opacity:1; transform:none; transition:none; }
  .sticky-cta{ transition:none; }
  .nav-toggle span{ transition:none; }
  .fx-l{ animation:none!important; opacity:.26; stroke-dasharray:none; }
}