/* ==========================================================================
   Hiyu Lab — Site Design System
   1ファイルに集約された共通スタイル。全ページがこのCSSだけを読み込む。
   ========================================================================== */

/* ---------- Reset & Tokens ---------- */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  /* Brand */
  --pink:#FF7AAB;
  --pink-deep:#E85A8F;
  --pink-dark:#C94577;
  --pink-light:#FFDBE9;
  --pink-faint:#FFF0F6;
  --teal:#62C8B0;
  --teal-deep:#3FA68B;
  --teal-dark:#2E8871;
  --teal-light:#D6F0E7;
  --teal-faint:#EEF9F5;
  /* Neutrals */
  --ink:#1F2733;
  --ink-soft:#5F6C7D;
  --ink-faint:#94A3B8;
  --bg:#FFFFFF;
  --bg-tint:#FDF9FB;
  --card:#FFFFFF;
  --border:#EDE3E9;
  --border-soft:#F4EDF2;
  --navy:#0B1120;
  --navy-soft:#151D30;
  --navy-border:#1E293B;
  /* Elevation */
  --shadow-sm:0 1px 2px rgba(31,39,51,.05),0 2px 8px rgba(31,39,51,.04);
  --shadow-md:0 2px 6px rgba(31,39,51,.05),0 10px 30px rgba(232,90,143,.08);
  --shadow-lg:0 4px 12px rgba(31,39,51,.06),0 20px 50px rgba(232,90,143,.12);
  /* Type scale */
  --fs-h1:40px;
  --fs-h2:28px;
  --fs-h3:19px;
  --fs-body:16px;
  --fs-small:14px;
  --fs-meta:13px;
  /* Rhythm */
  --sec-pad:96px;
  --radius:16px;
  --radius-lg:22px;
  --maxw:1080px;
  --maxw-narrow:720px;
}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:'Noto Sans JP','Hiragino Kaku Gothic ProN','Segoe UI',sans-serif;
  font-size:var(--fs-body);
  background:var(--bg);
  color:var(--ink);
  line-height:1.85;
  -webkit-tap-highlight-color:transparent;
  min-height:100vh;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--teal-dark);text-decoration:none}
a:hover{text-decoration:underline}
::selection{background:var(--pink-light)}

/* ---------- Global Header ---------- */
.site-header{
  position:sticky;top:0;z-index:1000;
  background:rgba(255,255,255,.9);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--border-soft);
}
.site-header::after{content:"";display:block;height:3px;background:linear-gradient(90deg,var(--pink) 0%,var(--pink-deep) 35%,var(--teal) 100%)}
.site-header-inner{
  max-width:var(--maxw);margin:0 auto;
  padding:0 24px;height:64px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.brand{display:flex;align-items:center;gap:10px;color:var(--ink);text-decoration:none}
.brand:hover{text-decoration:none}
.brand-icon{width:34px;height:34px;border-radius:9px;overflow:hidden;background:#fff;box-shadow:var(--shadow-sm)}
.brand-icon img{width:100%;height:100%;object-fit:contain}
.brand-text{font-family:'Outfit','Noto Sans JP',sans-serif;font-weight:600;font-size:17px;letter-spacing:-.01em}
.brand-text .accent{color:var(--pink-deep)}
.gnav{display:flex;align-items:center;gap:4px}
.gnav a{
  font-size:var(--fs-small);font-weight:500;color:var(--ink-soft);
  padding:8px 13px;border-radius:9px;text-decoration:none;transition:.18s;
}
.gnav a:hover{color:var(--pink-deep);background:var(--pink-faint);text-decoration:none}
.gnav a.gnav-cta{
  color:#fff;background:linear-gradient(135deg,var(--pink),var(--pink-deep));
  font-weight:600;margin-left:6px;box-shadow:0 2px 8px rgba(232,90,143,.28);
}
.gnav a.gnav-cta:hover{background:linear-gradient(135deg,var(--pink-deep),var(--pink-dark));color:#fff}
/* Mobile menu (checkbox hack, JS不要) */
.nav-toggle{display:none}
.nav-toggle-label{display:none;cursor:pointer;padding:10px;border-radius:9px}
.nav-toggle-label span{display:block;width:22px;height:2px;background:var(--ink);border-radius:2px;transition:.25s}
.nav-toggle-label span+span{margin-top:5px}
@media(max-width:820px){
  .nav-toggle-label{display:block}
  .gnav{
    position:fixed;inset:64px 0 auto 0;
    background:#fff;border-bottom:1px solid var(--border);
    flex-direction:column;align-items:stretch;gap:0;
    padding:10px 18px 18px;
    transform:translateY(-130%);transition:transform .28s ease;
    box-shadow:var(--shadow-md);
  }
  .gnav a{padding:13px 12px;font-size:15px;border-bottom:1px solid var(--border-soft)}
  .gnav a:last-child{border-bottom:none}
  .gnav a.gnav-cta{margin:12px 0 0;text-align:center}
  .nav-toggle:checked ~ .gnav{transform:translateY(0)}
  .nav-toggle:checked ~ .nav-toggle-label span:nth-child(1){transform:translateY(7px) rotate(45deg)}
  .nav-toggle:checked ~ .nav-toggle-label span:nth-child(2){opacity:0}
  .nav-toggle:checked ~ .nav-toggle-label span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
}

/* ---------- Sections & headings ---------- */
.section{padding:var(--sec-pad) 24px}
.section.tint{background:linear-gradient(180deg,#FBF3F7 0%,#F4FAF8 100%)}
.section.dark{
  background:
    radial-gradient(ellipse 640px 420px at 8% 0%, rgba(232,90,143,.16) 0%, transparent 55%),
    radial-gradient(ellipse 640px 420px at 95% 100%, rgba(98,200,176,.14) 0%, transparent 55%),
    var(--navy);
  position:relative;
}
.section.dark .section-head h2{color:#F1F5F9}
.section.dark .section-head .section-lead{color:#94A3B8}
.section.dark .eyebrow{color:var(--pink)}
.section.dark .section-head .eyebrow::before{background:linear-gradient(90deg,transparent,var(--pink))}
.section.dark .section-head .eyebrow::after{background:linear-gradient(90deg,var(--teal),transparent)}
.section.dark .app-card{border-color:transparent;box-shadow:0 10px 34px rgba(0,0,0,.34)}
.section.dark .app-card:hover{box-shadow:0 16px 44px rgba(0,0,0,.44)}
/* wave dividers into/out of the dark band */
.wave{display:block;width:100%;height:56px;background-repeat:no-repeat;background-size:100% 100%}
.wave-to-dark{background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1440 56' preserveAspectRatio='none'%3E%3Cpath d='M0,28 C240,56 480,0 720,14 C960,28 1200,56 1440,22 L1440,56 L0,56 Z' fill='%230B1120'/%3E%3C/svg%3E")}
.wave-from-dark{background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1440 56' preserveAspectRatio='none'%3E%3Cpath d='M0,28 C240,0 480,56 720,42 C960,28 1200,0 1440,34 L1440,0 L0,0 Z' fill='%230B1120'/%3E%3C/svg%3E")}
.section-inner{max-width:var(--maxw);margin:0 auto}
.section-inner.narrow{max-width:var(--maxw-narrow)}
.section-head{text-align:center;max-width:640px;margin:0 auto 52px}
.eyebrow{
  font-family:'Outfit',sans-serif;font-size:12px;font-weight:600;
  letter-spacing:.18em;text-transform:uppercase;color:var(--pink-deep);
  margin-bottom:14px;display:inline-flex;align-items:center;gap:10px;
}
.section-head .eyebrow::before,.section-head .eyebrow::after{content:"";width:26px;height:1.5px;background:linear-gradient(90deg,transparent,var(--pink));display:inline-block}
.section-head .eyebrow::after{background:linear-gradient(90deg,var(--teal),transparent)}
h1,h2,h3{line-height:1.45;letter-spacing:-.01em}
.section-head h2{font-size:32px;font-weight:700;position:relative;padding-bottom:18px}
.section-head h2::after{content:"";position:absolute;left:50%;bottom:0;transform:translateX(-50%);width:56px;height:4px;border-radius:2px;background:linear-gradient(90deg,var(--pink),var(--teal))}
@media(max-width:680px){.section-head h2{font-size:24px}}
.section-head .section-lead{font-size:var(--fs-small);color:var(--ink-soft);margin-top:14px}
.em{background:linear-gradient(120deg,var(--pink-deep) 20%,var(--teal-deep) 90%);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;color:var(--pink-deep)}
.hl{background:linear-gradient(transparent 62%,var(--pink-light) 62%,var(--pink-light) 94%,transparent 94%);padding:0 2px}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:6px;
  font-family:'Noto Sans JP',sans-serif;font-size:15px;font-weight:600;
  padding:14px 26px;border-radius:12px;border:none;cursor:pointer;
  text-decoration:none;transition:.18s;line-height:1.4;
}
.btn:hover{text-decoration:none}
.btn-primary{
  background:linear-gradient(135deg,var(--pink),var(--pink-deep));color:#fff;
  box-shadow:0 3px 12px rgba(232,90,143,.3);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 6px 18px rgba(232,90,143,.38);color:#fff}
.btn-ghost{background:#fff;border:1.5px solid var(--border);color:var(--ink-soft)}
.btn-ghost:hover{border-color:var(--pink);color:var(--pink-deep)}
.btn-teal{background:linear-gradient(135deg,var(--teal),var(--teal-deep));color:#fff;box-shadow:0 3px 12px rgba(63,166,139,.3)}
.btn-teal:hover{transform:translateY(-2px);color:#fff}
.btn-sm{padding:10px 18px;font-size:14px;border-radius:10px}

/* ---------- Badges ---------- */
.badge{display:inline-block;padding:4px 10px;border-radius:7px;font-size:12px;font-weight:600;letter-spacing:.02em}
.badge-pink{background:var(--pink-faint);color:var(--pink-deep)}
.badge-teal{background:var(--teal-faint);color:var(--teal-dark)}

/* ---------- Hero ---------- */
.hero{
  padding:76px 24px 96px;position:relative;overflow:hidden;
  background:
    radial-gradient(ellipse 720px 480px at 12% -12%, var(--pink-light) 0%, transparent 55%),
    radial-gradient(ellipse 700px 460px at 100% 115%, var(--teal-light) 0%, transparent 55%),
    linear-gradient(180deg,#FFF7FA, #fff 70%);
}
.hero::before{content:"";position:absolute;inset:0;pointer-events:none;opacity:.5;
  background-image:radial-gradient(var(--pink-light) 1.5px, transparent 1.5px);
  background-size:26px 26px;
  -webkit-mask-image:radial-gradient(ellipse 60% 60% at 80% 20%,#000 0%,transparent 70%);
          mask-image:radial-gradient(ellipse 60% 60% at 80% 20%,#000 0%,transparent 70%);}
.hero::after{content:"";position:absolute;bottom:-160px;left:-140px;width:440px;height:440px;border-radius:50%;background:radial-gradient(circle,var(--teal-light),transparent 65%);opacity:.7;pointer-events:none}
.hero-inner{position:relative;z-index:1}
.hero-inner{max-width:var(--maxw);margin:0 auto;display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:center}
.hero-copy .eyebrow{margin-bottom:18px}
.hero h1{font-size:48px;font-weight:800;line-height:1.3;margin-bottom:24px;letter-spacing:-.02em}
.hero-lead{font-size:16px;color:var(--ink-soft);line-height:2;max-width:520px;margin-bottom:32px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:34px}
.hero-stats{
  display:flex;gap:0;max-width:560px;
  background:var(--navy);border-radius:18px;padding:22px 26px;
  box-shadow:0 14px 36px rgba(11,17,32,.28);
  position:relative;overflow:hidden;
}
.hero-stats::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--pink),var(--teal))}
@media(max-width:560px){
  .hero-stats{display:grid;grid-template-columns:1fr 1fr;gap:18px 0;padding:20px 22px}
  .hero-stat:nth-child(odd){border-left:none;padding-left:0}
  .hero-stat:nth-child(even){border-left:1px solid var(--navy-border);padding-left:18px}
}
.hero-stat{flex:1;padding-right:18px;position:relative;z-index:1}
.hero-stat+.hero-stat{border-left:1px solid var(--navy-border);padding-left:18px}
.hero-stat .num{font-family:'Outfit',sans-serif;font-size:32px;font-weight:700;color:var(--pink);line-height:1.2}
.hero-stat:nth-child(even) .num{color:var(--teal)}
.hero-stat .num .unit{font-size:14px;font-weight:600;color:#94A3B8;margin-left:1px}
.hero-stat .label{font-size:12px;color:#94A3B8;margin-top:2px}
@media(max-width:920px){
  .hero{padding:40px 22px 64px}
  .hero-inner{grid-template-columns:1fr;gap:44px}
  .hero h1{font-size:31px}
  .hero-visual{order:-1;justify-self:center}
}

/* ---------- Phone mockup（実アプリUIの再現） ---------- */
.phone{
  width:290px;margin:0 auto;
  border-radius:38px;background:#0B1120;
  border:10px solid #1a2234;
  box-shadow:var(--shadow-lg),0 0 0 1px rgba(255,255,255,.6);
  overflow:hidden;position:relative;
}
.phone-screen{padding:18px 16px 16px;color:#E2E8F0;font-size:12px}
.phone-status{display:flex;justify-content:space-between;font-size:10px;color:#64748B;margin-bottom:12px;font-family:'Outfit',sans-serif}
.phone-appname{font-family:'Outfit',sans-serif;font-weight:700;font-size:15px;text-align:center;background:linear-gradient(135deg,#38BDF8,#22D3EE,#A78BFA);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;margin-bottom:2px}
.phone-appsub{text-align:center;font-size:9.5px;color:#64748B;margin-bottom:14px}
.phone-card{background:#111A2E;border:1px solid #1E293B;border-radius:14px;padding:16px 14px;margin-bottom:10px}
.phone-chip{display:inline-block;font-size:9px;font-weight:700;color:#38BDF8;background:#38BDF81f;border-radius:5px;padding:2px 7px;margin-bottom:8px;letter-spacing:.04em}
.phone-en{font-family:'Outfit',sans-serif;font-size:17px;font-weight:600;color:#F1F5F9;margin-bottom:3px}
.phone-ja{font-size:11px;color:#94A3B8;margin-bottom:9px}
.phone-ex{font-size:10px;color:#64748B;line-height:1.7;border-top:1px dashed #1E293B;padding-top:8px}
.phone-ex b{color:#7DD3FC;font-weight:600}
.phone-progress{display:flex;align-items:center;gap:8px;margin:12px 2px 10px}
.phone-progress .bar{flex:1;height:5px;background:#1E293B;border-radius:3px;overflow:hidden}
.phone-progress .bar i{display:block;height:100%;width:62%;background:linear-gradient(90deg,#38BDF8,#22D3EE);border-radius:3px}
.phone-progress .pct{font-family:'Outfit',sans-serif;font-size:10px;color:#7DD3FC;font-weight:600}
.phone-nav{display:flex;justify-content:space-around;border-top:1px solid #1E293B;padding-top:10px;margin-top:4px}
.phone-nav span{font-size:9px;color:#64748B;text-align:center;line-height:1.5}
.phone-nav span.on{color:#38BDF8}
.phone-nav i{display:block;font-size:14px;font-style:normal;margin-bottom:1px}

.hero-visual{display:flex;justify-content:center}
.phone-wrap{position:relative;width:290px}
.float-chip{
  position:absolute;z-index:2;font-family:'Outfit','Noto Sans JP',sans-serif;
  font-size:12.5px;font-weight:600;padding:9px 15px;border-radius:999px;
  background:#fff;border:1px solid var(--border);box-shadow:var(--shadow-md);
  color:var(--ink);white-space:nowrap;animation:float 5s ease-in-out infinite;
}
.float-chip b{color:var(--pink-deep)}
.float-chip.c1{top:24px;left:-92px;animation-delay:0s}
.float-chip.c2{top:46%;right:-96px;animation-delay:1.4s;background:var(--navy);border-color:var(--navy-border);color:#E2E8F0}
.float-chip.c3{bottom:30px;left:-72px;animation-delay:2.6s}
.float-chip.c2 b{color:var(--teal)}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-9px)}}
@media(max-width:1060px){.float-chip.c1{left:-40px}.float-chip.c2{right:-44px}.float-chip.c3{left:-28px}}
@media(max-width:560px){
  .float-chip{font-size:11.5px;padding:7px 12px}
  .float-chip.c1{left:-14px;top:10px}
  .float-chip.c2{right:-14px}
  .float-chip.c3{left:-8px;bottom:14px}
}

/* ---------- App cards ---------- */
.apps-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
@media(max-width:720px){.apps-grid{grid-template-columns:1fr;gap:16px}}
.app-card{
  background:var(--card);border:1px solid var(--border);border-radius:var(--radius-lg);
  padding:28px;display:flex;flex-direction:column;gap:16px;position:relative;overflow:hidden;
  transition:transform .2s,box-shadow .2s,border-color .2s;box-shadow:var(--shadow-sm);
}
.app-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:var(--pink-light)}
.app-card::before{content:"";position:absolute;top:0;left:0;right:0;height:5px;background:linear-gradient(90deg,var(--pink),var(--teal))}
.app-card.ac-pt::before{background:linear-gradient(90deg,#3FA68B,#62C8B0)}
.app-card.ac-rd::before{background:linear-gradient(90deg,#E85A8F,#FF7AAB)}
.app-card.ac-congress::before{background:linear-gradient(90deg,#8B5CF6,#A78BFA)}
.app-card.ac-grammar::before{background:linear-gradient(90deg,#0284C7,#38BDF8)}
.app-card.ac-pt .app-tag{color:#2E8871}
.app-card.ac-congress .app-tag{color:#7C3AED}
.app-card.ac-grammar .app-tag{color:#0284C7}
.app-card.ac-pt:hover{border-color:#B7E4D8}
.app-card.ac-congress:hover{border-color:#DDD1FB}
.app-card.ac-grammar:hover{border-color:#BAE6FD}
.app-head{display:flex;align-items:center;gap:16px}
.app-icon{width:60px;height:60px;border-radius:15px;overflow:hidden;background:#fff;border:1px solid var(--border-soft);flex-shrink:0;box-shadow:var(--shadow-sm)}
.app-icon img{width:100%;height:100%;object-fit:contain}
.app-tag{font-family:'Outfit',sans-serif;font-size:11px;color:var(--pink-deep);font-weight:600;letter-spacing:.06em;text-transform:uppercase;margin-bottom:2px}
.app-name{font-family:'Outfit',sans-serif;font-size:20px;font-weight:600;letter-spacing:-.01em;line-height:1.3}
.app-subtitle{font-size:12.5px;color:var(--ink-soft);margin-top:2px}
.app-desc{font-size:14.5px;color:var(--ink-soft);line-height:1.85;flex:1}
.app-meta{display:flex;gap:6px;flex-wrap:wrap}
.app-actions{display:flex;gap:10px;margin-top:4px}
.app-actions .btn{flex:1}

/* ---------- Feature (walls) ---------- */
.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
@media(max-width:860px){.feature-grid{grid-template-columns:1fr}}
.feature-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius-lg);padding:30px 26px;box-shadow:var(--shadow-sm)}
.feature-num{
  font-family:'Outfit',sans-serif;font-size:15px;font-weight:700;color:#fff;
  width:44px;height:44px;border-radius:13px;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--pink),var(--pink-deep));box-shadow:0 4px 12px rgba(232,90,143,.3);
  margin-bottom:16px;
}
.feature-card:nth-child(2) .feature-num{background:linear-gradient(135deg,var(--teal),var(--teal-deep));box-shadow:0 4px 12px rgba(63,166,139,.3)}
.feature-card:nth-child(3) .feature-num{background:linear-gradient(135deg,#A78BFA,#8B5CF6);box-shadow:0 4px 12px rgba(139,92,246,.3)}
.feature-title{font-size:17px;font-weight:700;margin-bottom:10px;line-height:1.55}
.feature-desc{font-size:14px;color:var(--ink-soft);line-height:1.9}
.feature-fix{margin-top:14px;padding:13px 15px;background:var(--teal-faint);border-radius:11px;font-size:13px;line-height:1.8;color:var(--ink)}
.feature-fix b{color:var(--teal-dark)}

/* ---------- Article cards ---------- */
.articles-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
@media(max-width:860px){.articles-grid{grid-template-columns:1fr}}
.articles-grid.list{grid-template-columns:1fr;max-width:760px;margin:0 auto}
.article-card{
  background:var(--card);border:1px solid var(--border);border-radius:var(--radius);
  padding:26px;display:flex;flex-direction:column;text-decoration:none;color:inherit;
  transition:transform .2s,box-shadow .2s,border-color .2s;box-shadow:var(--shadow-sm);position:relative;overflow:hidden;
}
.article-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-md);border-color:var(--pink-light);text-decoration:none}
.article-card .cat{font-family:'Outfit',sans-serif;font-size:11px;color:var(--pink-deep);font-weight:600;letter-spacing:.08em;text-transform:uppercase;margin-bottom:9px}
.article-card .ttl{font-size:16px;font-weight:600;line-height:1.6;margin-bottom:9px}
.article-card .exc{font-size:13px;color:var(--ink-soft);line-height:1.8;flex:1}
.article-card .meta{font-size:12px;color:var(--ink-faint);margin-top:14px;display:flex;gap:10px;align-items:center}
.article-card .meta .date{font-family:'Outfit',sans-serif;color:var(--pink-deep);font-weight:500}

/* ---------- FAQ ---------- */
.faq-list{max-width:760px;margin:0 auto}
.faq-item{background:var(--card);border:1px solid var(--border);border-radius:14px;margin-bottom:12px;overflow:hidden;box-shadow:var(--shadow-sm)}
.faq-item summary{
  list-style:none;cursor:pointer;padding:19px 52px 19px 22px;font-weight:600;font-size:15px;
  position:relative;line-height:1.7;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"＋";position:absolute;right:20px;top:50%;transform:translateY(-50%);
  color:var(--pink-deep);font-size:17px;font-weight:400;transition:.2s;
}
.faq-item[open] summary::after{content:"－"}
.faq-item .faq-a{padding:0 22px 20px;font-size:14px;color:var(--ink-soft);line-height:1.95}

/* ---------- Steps ---------- */
.steps-list{counter-reset:step;list-style:none;max-width:760px;margin:0 auto}
.steps-list li{
  counter-increment:step;position:relative;
  padding:22px 24px 22px 74px;background:var(--card);border:1px solid var(--border);
  border-radius:14px;margin-bottom:12px;font-size:14.5px;line-height:1.9;color:var(--ink-soft);
  box-shadow:var(--shadow-sm);
}
.steps-list li::before{
  content:counter(step,decimal-leading-zero);
  position:absolute;left:22px;top:22px;
  font-family:'Outfit',sans-serif;font-size:19px;font-weight:700;color:var(--pink-deep);
}
.steps-list li b,.steps-list li strong{display:block;color:var(--ink);font-size:15.5px;margin-bottom:4px}

/* ---------- Updates ---------- */
.updates-list{max-width:760px;margin:0 auto}
.update-item{display:flex;gap:20px;padding:17px 4px;border-bottom:1px solid var(--border-soft);font-size:14px;line-height:1.85}
.update-item:last-child{border-bottom:none}
.update-date{font-family:'Outfit',sans-serif;font-weight:600;color:var(--pink-deep);white-space:nowrap;font-size:13px;padding-top:2px}
.update-text{color:var(--ink-soft)}
.update-text strong{color:var(--ink)}

/* ---------- Team / About ---------- */
.team-row{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin:32px 0}
@media(max-width:680px){.team-row{grid-template-columns:1fr}}
.team-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius-lg);padding:28px;box-shadow:var(--shadow-sm)}
.team-avatar{
  width:56px;height:56px;border-radius:16px;display:flex;align-items:center;justify-content:center;
  font-size:26px;margin-bottom:14px;
}
.team-avatar.pt{background:var(--teal-faint)}
.team-avatar.rd{background:var(--pink-faint)}
.team-role{font-family:'Outfit',sans-serif;font-size:12px;font-weight:600;color:var(--pink-deep);letter-spacing:.08em;text-transform:uppercase;margin-bottom:4px}
.team-name{font-size:17px;font-weight:700;margin-bottom:10px}
.team-desc{font-size:13.5px;color:var(--ink-soft);line-height:1.9}
.team-desc ul{margin:8px 0 0 18px}
.team-desc li{margin-bottom:4px}

/* ---------- CTA band ---------- */
.cta-band{
  background:linear-gradient(120deg,var(--pink-deep) 0%,var(--pink) 42%,var(--teal) 100%);
  border-radius:var(--radius-lg);padding:60px 32px;text-align:center;position:relative;overflow:hidden;
  box-shadow:0 16px 44px rgba(232,90,143,.28);
}
.cta-band::before{content:"";position:absolute;top:-70px;right:-50px;width:230px;height:230px;border-radius:50%;background:rgba(255,255,255,.14)}
.cta-band::after{content:"";position:absolute;bottom:-90px;left:-60px;width:260px;height:260px;border-radius:50%;background:rgba(255,255,255,.1)}
.cta-band h2{font-size:27px;font-weight:700;margin-bottom:12px;color:#fff;position:relative;z-index:1}
.cta-band p{font-size:14.5px;color:rgba(255,255,255,.92);max-width:540px;margin:0 auto 28px;position:relative;z-index:1}
.cta-band .btn{position:relative;z-index:1}
.cta-band .btn-primary{background:#fff;color:var(--pink-deep);box-shadow:0 4px 16px rgba(0,0,0,.15)}
.cta-band .btn-primary:hover{background:#fff;color:var(--pink-dark)}

/* ---------- Breadcrumbs ---------- */
.breadcrumbs{max-width:var(--maxw);margin:0 auto;padding:18px 24px 0;font-size:12.5px;color:var(--ink-faint)}
.breadcrumbs a{color:var(--ink-faint)}
.breadcrumbs a:hover{color:var(--pink-deep)}
.breadcrumbs .sep{margin:0 7px;color:var(--border)}
.breadcrumbs.on-dark{background:var(--navy);margin:0;max-width:none;padding:18px 24px 0}
.breadcrumbs.on-dark a,.breadcrumbs.on-dark{color:#64748B}
.breadcrumbs.on-dark .sep{color:#334155}
.breadcrumbs.on-dark a:hover{color:var(--pink)}

/* ---------- Page hero（下層ページ共通） ---------- */
.page-hero{padding:56px 24px 20px;text-align:center}
.page-hero .eyebrow{margin-bottom:12px}
.page-hero h1{font-size:32px;font-weight:700;line-height:1.5;max-width:760px;margin:0 auto 16px}
.page-hero .page-lead{font-size:15px;color:var(--ink-soft);max-width:640px;margin:0 auto;line-height:2}
@media(max-width:680px){.page-hero h1{font-size:24px}}

/* ---------- Prose（記事・固定ページ本文） ---------- */
.prose{max-width:var(--maxw-narrow);margin:0 auto;padding:36px 24px 72px}
.prose>.article-tag{font-family:'Outfit',sans-serif;font-size:12px;font-weight:600;color:var(--pink-deep);letter-spacing:.08em;text-transform:uppercase;margin-bottom:10px;text-align:center}
.prose>h1{font-size:28px;font-weight:700;letter-spacing:-.01em;margin-bottom:16px;line-height:1.55;text-align:center}
.prose>.meta{font-size:12px;color:var(--ink-faint);text-align:center;margin-bottom:34px}
.prose .lead{font-size:15px;line-height:2;margin-bottom:34px;padding-bottom:26px;border-bottom:1px solid var(--border-soft)}
.prose h2{font-size:22px;font-weight:700;margin:46px 0 16px;line-height:1.55}
.prose h2 .num{display:inline-block;font-family:'Outfit',sans-serif;font-size:17px;color:var(--pink-deep);margin-right:9px}
.prose h3{font-size:17px;font-weight:600;margin:28px 0 10px}
.prose p{font-size:15px;line-height:2;margin-bottom:18px}
.prose ul,.prose ol{margin:12px 0 22px 24px}
.prose li{font-size:15px;margin-bottom:8px;line-height:1.9}
.prose blockquote{border-left:3px solid var(--pink);padding:8px 0 8px 20px;margin:20px 0;color:var(--ink-soft);font-size:14px;line-height:1.9}
.prose table{width:100%;border-collapse:collapse;font-size:14px;margin:14px 0 24px}
.prose th,.prose td{border:1px solid var(--border);padding:10px 12px;text-align:left;line-height:1.7}
.prose th{background:var(--bg-tint);font-weight:600;font-size:13px}
/* 記事内コンポーネント（既存記事のクラス名を継承） */
.takeaway{background:linear-gradient(135deg,var(--pink-faint),var(--teal-faint));border:1px solid var(--pink-light);border-radius:14px;padding:22px 24px;margin:26px 0}
.takeaway-title{font-family:'Outfit',sans-serif;font-size:12px;font-weight:600;color:var(--pink-deep);letter-spacing:.08em;text-transform:uppercase;margin-bottom:8px}
.takeaway p{font-size:14px;margin-bottom:0}
.phrase{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:15px 18px;margin:10px 0;box-shadow:var(--shadow-sm)}
.phrase .en{font-family:'Outfit',sans-serif;font-weight:600;font-size:15px;margin-bottom:2px}
.phrase .ja{font-size:13px;color:var(--ink-soft)}
.day-card{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:16px 18px;margin:10px 0;font-size:14px;box-shadow:var(--shadow-sm)}
.day-card-num{font-family:'Outfit',sans-serif;font-weight:600;color:var(--pink-deep);font-size:13px;margin-bottom:4px}
.day-card p{font-size:14px;margin:0;line-height:1.8}
.cta-card{background:var(--card);border:1px solid var(--border);border-radius:16px;padding:28px;margin:36px 0;text-align:center;box-shadow:var(--shadow-sm)}
.cta-card .cta-ttl{font-family:'Outfit','Noto Sans JP',sans-serif;font-size:15px;font-weight:600;color:var(--pink-deep);margin-bottom:6px}
.cta-card p{font-size:14px;color:var(--ink-soft);margin-bottom:14px}
.back-to-blog{text-align:center;margin:44px 0 0;font-size:14px}

.guide-faq{background:var(--card);border:1px solid var(--border);border-radius:13px;padding:17px 19px;margin-bottom:12px;box-shadow:var(--shadow-sm)}
.guide-faq .q{font-weight:700;font-size:15px;margin-bottom:6px;color:var(--ink)}
.guide-faq .a{font-size:14px;color:var(--ink-soft);margin:0;line-height:1.9}

/* ---------- Author box & Related ---------- */
.author-box{
  display:flex;gap:18px;align-items:flex-start;
  background:var(--bg-tint);border:1px solid var(--border);border-radius:16px;
  padding:22px 24px;margin:44px 0 0;
}
.author-box .avatar{width:52px;height:52px;border-radius:14px;background:#fff;border:1px solid var(--border-soft);overflow:hidden;flex-shrink:0}
.author-box .avatar img{width:100%;height:100%;object-fit:contain}
.author-box .who{font-size:14px;font-weight:700;margin-bottom:4px}
.author-box .bio{font-size:13px;color:var(--ink-soft);line-height:1.85}
.author-box .bio a{font-weight:500}
.related{margin:40px 0 0}
.related-title{font-family:'Outfit',sans-serif;font-size:13px;font-weight:600;color:var(--pink-deep);letter-spacing:.1em;text-transform:uppercase;margin-bottom:14px}
.related a.rel-item{
  display:block;background:var(--card);border:1px solid var(--border);border-radius:12px;
  padding:15px 18px;margin-bottom:10px;text-decoration:none;color:inherit;transition:.18s;
}
.related a.rel-item:hover{border-color:var(--pink-light);box-shadow:var(--shadow-sm)}
.related .rel-cat{font-family:'Outfit',sans-serif;font-size:10.5px;color:var(--pink-deep);font-weight:600;letter-spacing:.08em;text-transform:uppercase}
.related .rel-ttl{font-size:14px;font-weight:600;line-height:1.6;margin-top:2px}

/* ---------- App detail page ---------- */
.appdetail-hero{
  padding:64px 24px 72px;position:relative;overflow:hidden;
  background:
    radial-gradient(ellipse 620px 420px at 10% -10%, rgba(232,90,143,.2) 0%, transparent 55%),
    radial-gradient(ellipse 620px 420px at 96% 115%, rgba(98,200,176,.16) 0%, transparent 55%),
    var(--navy);
}
.appdetail-hero::before{content:"";position:absolute;inset:0;pointer-events:none;opacity:.35;
  background-image:radial-gradient(rgba(148,163,184,.35) 1.3px, transparent 1.3px);
  background-size:24px 24px;
  -webkit-mask-image:radial-gradient(ellipse 55% 65% at 85% 15%,#000 0%,transparent 70%);
          mask-image:radial-gradient(ellipse 55% 65% at 85% 15%,#000 0%,transparent 70%);}
.appdetail-hero-inner{position:relative;z-index:1}
.appdetail-hero .eyebrow{color:var(--pink)}
.appdetail-hero .btn-ghost{background:transparent;border-color:#334155;color:#CBD5E1}
.appdetail-hero .btn-ghost:hover{border-color:var(--pink);color:var(--pink)}
.appdetail-hero-inner{max-width:var(--maxw);margin:0 auto;display:grid;grid-template-columns:1.2fr .8fr;gap:48px;align-items:center}
@media(max-width:920px){.appdetail-hero-inner{grid-template-columns:1fr}.appdetail-hero{padding:36px 22px 52px}}
.appdetail-icon{width:76px;height:76px;border-radius:19px;overflow:hidden;background:#fff;border:1px solid rgba(255,255,255,.2);box-shadow:0 10px 30px rgba(0,0,0,.4);margin-bottom:18px}
.appdetail-hero h1{font-size:36px;font-weight:700;line-height:1.35;margin-bottom:6px;font-family:'Outfit','Noto Sans JP',sans-serif;color:#F1F5F9}
.appdetail-sub{font-size:16px;color:#94A3B8;margin-bottom:18px}
.appdetail-lead{font-size:15px;color:#CBD5E1;line-height:2;max-width:540px;margin-bottom:28px}
@media(max-width:680px){.appdetail-hero h1{font-size:26px}}
.spec-table{width:100%;border-collapse:collapse;font-size:14px;margin:8px 0 8px}
.spec-table th,.spec-table td{border-bottom:1px solid var(--border-soft);padding:13px 8px;text-align:left;line-height:1.7;vertical-align:top}
.spec-table th{width:34%;color:var(--ink-soft);font-weight:600;font-size:13px;white-space:nowrap}
.func-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
@media(max-width:720px){.func-grid{grid-template-columns:1fr}}
.func-card{background:var(--card);border:1px solid var(--border);border-radius:14px;padding:24px;box-shadow:var(--shadow-sm)}
.func-card .fi{font-size:23px;width:48px;height:48px;border-radius:14px;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,var(--pink-faint),var(--teal-faint));margin-bottom:12px}
.func-card .ft{font-size:15.5px;font-weight:700;margin-bottom:7px}
.func-card p{font-size:13.5px;color:var(--ink-soft);line-height:1.9;margin:0}

/* ---------- Footer ---------- */
.site-footer{border-top:none;background:var(--navy);margin-top:0;position:relative}
.site-footer::before{content:"";display:block;height:3px;background:linear-gradient(90deg,var(--pink) 0%,var(--pink-deep) 35%,var(--teal) 100%)}
.site-footer-inner{max-width:var(--maxw);margin:0 auto;padding:56px 24px 28px}
.footer-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr;gap:36px;margin-bottom:38px}
@media(max-width:760px){.footer-grid{grid-template-columns:1fr;gap:28px}}
.site-footer .brand-text{color:#F1F5F9}
.footer-about .brand{margin-bottom:12px}
.footer-about p{font-size:13px;color:#94A3B8;line-height:1.9;max-width:320px}
.footer-col h4{font-family:'Outfit',sans-serif;font-size:12px;font-weight:600;letter-spacing:.1em;text-transform:uppercase;color:#64748B;margin-bottom:14px}
.footer-col a{display:block;font-size:13.5px;color:#94A3B8;padding:5px 0;text-decoration:none}
.footer-col a:hover{color:var(--pink)}
.footer-bottom{border-top:1px solid var(--navy-border);padding-top:22px;display:flex;justify-content:space-between;align-items:center;gap:14px;flex-wrap:wrap}
.footer-note{font-size:11.5px;color:#64748B;line-height:1.8}
.footer-note a{color:#94A3B8}
.footer-sns{display:flex;gap:10px}
.footer-sns a{
  display:inline-flex;align-items:center;justify-content:center;width:36px;height:36px;
  border-radius:10px;background:var(--navy-soft);border:1px solid var(--navy-border);color:#94A3B8;transition:.18s;text-decoration:none;
}
.footer-sns a:hover{transform:translateY(-2px);border-color:var(--pink);color:var(--pink)}
.footer-sns svg{width:16px;height:16px}
.footer-sns .label-only{font-family:'Outfit',sans-serif;font-weight:700;font-size:13px}

/* ---------- Utilities ---------- */
.center{text-align:center}
.mt-0{margin-top:0}.mt-24{margin-top:24px}.mt-40{margin-top:40px}
.mb-0{margin-bottom:0}
@media(max-width:680px){
  :root{--sec-pad:64px;--fs-h1:30px;--fs-h2:23px}
}