*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:        #F5FBFC;
  --bg2:       #EBF7F9;
  --bg3:       #DFF2F5;
  --white:     #FFFFFF;
  --ink:       #0D1F2D;
  --ink2:      #2E4A58;
  --ink3:      #5C7A86;
  --blue:      #1AAEC0;
  --blue-lt:   #DFF2F5;
  --blue-mid:  #30C0D0;
  --red:       #DC2626;
  --red-lt:    #FEF2F2;
  --green:     #059669;
  --green-lt:  #ECFDF5;
  --border:    #C8E8EC;
  --r:         12px;
  --r-lg:      20px;
  --sh-sm:     0 1px 3px rgba(0,0,0,.06);
  --sh:        0 4px 16px rgba(0,0,0,.07), 0 1px 4px rgba(0,0,0,.04);
  --sh-lg:     0 12px 40px rgba(0,0,0,.10), 0 2px 8px rgba(0,0,0,.05);
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Noto Sans JP', 'DM Sans', sans-serif;
  background: var(--bg);
  color: var(--ink);
  font-size: 15px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

.container { max-width: 1160px; margin: 0 auto; padding: 0 32px; }
section    { padding: 120px 0; }

nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: rgba(250,250,250,.94);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
  height: 64px; display: flex; align-items: center;
}
.nav-inner {
  max-width: 1160px; margin: 0 auto; padding: 0 32px;
  width: 100%; display: flex; align-items: center; justify-content: space-between;
}
.nav-logo img { height: 36px; width: auto; display: block; }
.nav-links { display: flex; align-items: center; gap: 32px; }
.nav-links a { font-size: 14px; font-weight: 500; color: var(--ink2); text-decoration: none; transition: color .2s; }
.nav-links a:hover { color: var(--blue); }
.btn-nav {
  background: linear-gradient(180deg, #FFB800 0%, #E89800 100%);
  color: #ffffff !important; -webkit-text-fill-color: #ffffff;
  border: none; border-radius: 100px;
  padding: 9px 22px; font-size: 13px; font-weight: 700;
  cursor: pointer; text-decoration: none;
  box-shadow: 0 3px 10px rgba(200,130,0,.45), inset 0 1px 0 rgba(255,255,255,.25);
  transition: filter .15s, transform .15s; font-family: inherit;
}
.btn-nav-customer {
  background: transparent !important;
  color: var(--ink) !important; -webkit-text-fill-color: var(--ink) !important;
  border: 1.5px solid var(--ink) !important;
  box-shadow: none !important;
}
.btn-nav-customer:hover { background: rgba(0,0,0,.05) !important; }
.btn-customer {
  border-color: rgba(255,255,255,0.5) !important;
  color: rgba(255,255,255,0.85) !important;
}
.btn-customer:hover { border-color: #fff !important; color: #fff !important; }
.btn-nav:hover { filter: brightness(1.08); transform: translateY(-1px); color: #ffffff !important; }

.btn-primary {
  display: inline-flex; align-items: center; gap: 10px;
  background: linear-gradient(180deg, #FFB800 0%, #E89800 100%);
  color: #fff; border: none; border-radius: 100px;
  padding: 18px 44px; font-size: 24px; font-weight: 800;
  cursor: pointer; text-decoration: none;
  box-shadow: 0 4px 18px rgba(200,130,0,.50), inset 0 1px 0 rgba(255,255,255,.28);
  transition: filter .15s, transform .15s, box-shadow .15s; font-family: inherit;
  letter-spacing: .01em;
}
.btn-primary:hover { filter: brightness(1.08); transform: translateY(-2px); box-shadow: 0 8px 28px rgba(200,130,0,.55), inset 0 1px 0 rgba(255,255,255,.28); }
.btn-secondary {
  display: inline-flex; align-items: center; gap: 8px;
  background: transparent; color: var(--blue);
  border: 1.5px solid var(--blue); border-radius: 10px;
  padding: 13px 28px; font-size: 15px; font-weight: 600;
  cursor: pointer; text-decoration: none;
  transition: background .2s, transform .15s; font-family: inherit;
}
.btn-secondary:hover { background: var(--blue-lt); transform: translateY(-2px); }

.section-tag {
  font-size: 18px; font-weight: 600; letter-spacing: .12em;
  text-transform: uppercase; color: var(--blue);
  margin-bottom: 12px; display: block;
}
.section-header { text-align: center; margin-bottom: 72px; }
#features .section-tag { color: var(--blue); text-transform: none !important; letter-spacing: normal; }
#features .section-title { color: var(--ink); }
#features .section-desc { color: var(--ink3); }
.section-title {
  font-family: 'DM Sans','Noto Sans JP',sans-serif;
  font-size: clamp(26px,3vw,38px); font-weight: 800;
  letter-spacing: -.02em; color: var(--ink); margin-bottom: 14px;
}
.section-desc { font-size: 16px; color: var(--ink3); max-width: 540px; margin: 0 auto; line-height: 1.8; }

.badge {
  display: inline-flex; align-items: center; gap: 6px;
  background: var(--blue-lt); color: var(--blue);
  border: 1px solid #C3D5F8; border-radius: 100px;
  padding: 5px 14px; font-size: 15px; font-weight: 600;
  letter-spacing: .03em; margin-bottom: 20px;
}
.badge::before {
  content: ''; display: block; width: 6px; height: 6px;
  border-radius: 50%; background: var(--blue); animation: pulse 2s infinite;
}
@keyframes pulse {
  0%,100% { opacity:1; transform:scale(1); }
  50%      { opacity:.5; transform:scale(1.3); }
}

/* ═══ Hero ═══ */
/* ═══ Hero — 背景画像全面 + 左グラデーション ═══ */
#hero {
  padding-top: 0;
  padding-bottom: 0;
  min-height: 100vh;
  overflow: hidden;
  position: relative;
  display: flex;
  align-items: center;
  margin-top: 64px;
  background-image: url(xronos_lp_top.jpg);
  background-size: cover;
  background-position: center top;
  background-repeat: no-repeat;
}
#hero::before {
  content: '';
  position: absolute; inset: 0; z-index: 0;
  /* ① 左からの白グラデーション */
  background: linear-gradient(
    to right,
    rgba(255,255,255,1.00)  0%,
    rgba(255,255,255,0.98) 25%,
    rgba(255,255,255,0.80) 45%,
    rgba(255,255,255,0.20) 65%,
    rgba(255,255,255,0.00) 100%
  );
  pointer-events: none;
}
#hero::after {
  content: '';
  position: absolute; inset: 0; z-index: 0;
  /* ② 全体を暗くするオーバーレイ（右側ほど濃く） */
  background: linear-gradient(
    to right,
    rgba(0,0,0,0.00)  0%,
    rgba(0,0,0,0.05) 40%,
    rgba(0,0,0,0.30) 70%,
    rgba(0,0,0,0.45) 100%
  );
  pointer-events: none;
}
#hero .container { position: relative; z-index: 1; width: 100%; }

/* 2カラムグリッドに戻す */
.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 48px;
  align-items: center;
  padding: 80px 0;
}

/* ヒーロー：コピーのみ中央寄せ */
.hero-copy {
  max-width: 640px;
  padding: 80px 0;
}

/* テキスト（左カラム）— 濃い色で読みやすく */
.hero-title {
  font-family: 'DM Sans','Noto Sans JP',sans-serif;
  font-size: clamp(28px, 3.2vw, 46px); font-weight: 800;
  line-height: 1.18; letter-spacing: -.03em;
  color: var(--ink);
  margin-bottom: 20px;
}
.hero-title em { font-style: normal; color: var(--blue); }
.hero-title .line-accent {
  display: inline-block;
  background: linear-gradient(90deg, var(--blue) 0%, #0E92A3 100%);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text; position: relative;
  font-size: 1.15em; font-weight: 900;
}
.hero-title .line-accent::after {
  content: ''; position: absolute; bottom: -3px; left: 0; right: 0;
  height: 3px; background: linear-gradient(90deg, var(--blue), #0E92A3);
  border-radius: 2px; opacity: 0.5;
}
.hero-sub {
  font-size: 16px; color: var(--ink2);
  line-height: 1.85; margin-bottom: 36px; max-width: 440px;
}
.hero-cta-row { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }
.hero-trust { margin-top: 28px; display: flex; align-items: center; gap: 20px; flex-wrap: wrap; }
.hero-trust-item { display: flex; align-items: center; gap: 7px; font-size: 13px; color: var(--ink3); font-weight: 500; }
.hero-trust-item svg { color: var(--green); flex-shrink: 0; }

/* バッジ */
.hero-grid .badge {
  background: var(--blue-lt);
  border-color: var(--border);
  color: var(--blue);
  font-size: 13px;
  margin-bottom: 20px;
}
.hero-grid .badge::before { background: var(--blue); }

/* 右カラム（ビジュアル）*/
.hero-visual {
  display: flex; flex-direction: column; gap: 16px;
  opacity: 1;
  filter: none;
}
.flow-diagram {
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: var(--r-lg); padding: 24px 20px 20px;
  box-shadow: var(--sh);
  backdrop-filter: none;
}
.app-screenshot {
  border-radius: var(--r-lg); overflow: hidden;
  border: 1px solid rgba(200,232,236,0.5);
  box-shadow: 0 4px 20px rgba(0,0,0,.06);
  background: var(--white);
}

/* ─── フローダイアグラム ─── */
.flow-diagram {
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: var(--r-lg); padding: 24px 20px 20px;
  box-shadow: var(--sh);
  backdrop-filter: blur(4px);
}
.flow-diagram-label {
  font-size: 15px; font-weight: 700; letter-spacing: .04em;
  text-transform: none; color: var(--ink2); text-align: center; margin-bottom: 20px;
}
/* ノードとコネクターをすべて縦中央揃えで横並び */
.flow-diagram-row {
  display: flex;
  align-items: center; /* ← ここで全要素の縦軸を統一 */
  justify-content: center;
}
.flow-node {
  display: flex; flex-direction: column; align-items: center;
  gap: 8px; flex: 1;
}
.flow-node-icon {
  width: 60px; height: 60px; border-radius: 16px;
  display: flex; align-items: center; justify-content: center;
  position: relative; box-shadow: 0 2px 8px rgba(0,0,0,.08); transition: transform .2s;
  flex-shrink: 0;
}
.flow-node-icon svg { width: 28px; height: 28px; }
.flow-node-icon:hover { transform: translateY(-2px); }
.flow-node-icon.csv    { background: #FEF3C7; border: 1.5px solid #FCD34D; }
.flow-node-icon.rak    { background: var(--blue-lt); border: 1.5px solid #7DD3FA; }
.flow-node-icon.xronos { background: var(--green-lt); border: 1.5px solid #6EE7B7; }
.flow-node-name { font-size: 12px; font-weight: 700; color: var(--ink2); letter-spacing: .02em; text-align: center; line-height: 1.3; }
.flow-node-sub  { font-size: 10px; color: var(--ink3); text-align: center; line-height: 1.4; }
.flow-connector {
  display: flex; flex-direction: column; align-items: center;
  flex-shrink: 0; padding: 0 8px;
  /* ノード下テキスト（name+sub 約44px）分だけ下にずらしてアイコン中央に揃える */
  margin-bottom: 44px;
}
.flow-connector-line { display: flex; align-items: center; gap: 2px; }
.connector-dot { width: 4px; height: 4px; border-radius: 50%; background: var(--blue); }
.connector-bar { width: 28px; height: 2px; background: linear-gradient(90deg, var(--blue), #0E92A3); }
.connector-arrow { width: 0; height: 0; border-top: 5px solid transparent; border-bottom: 5px solid transparent; border-left: 7px solid #0E92A3; }
.flow-connector-label { font-size: 9px; font-weight: 700; color: var(--blue); margin-top: 6px; letter-spacing: .05em; text-transform: uppercase; }

.app-screenshot { border-radius: var(--r-lg); overflow: hidden; border: 1px solid rgba(200,232,236,0.5); box-shadow: 0 4px 20px rgba(0,0,0,.06); background: var(--white); }
.app-screenshot .bar { background: var(--bg2); padding: 10px 14px; display: flex; align-items: center; gap: 7px; border-bottom: 1px solid var(--border); }
.dot { width: 10px; height: 10px; border-radius: 50%; }
.dot.r { background: #FF5F57; } .dot.y { background: #FEBC2E; } .dot.g { background: #28C840; }
.app-screenshot img { width: 100%; display: block; }

/* ═══ Features 2×2 ═══ */
#features { background: #F8FDFE; }
.features-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 28px; align-items: stretch; }
.features-grid .feature-card:last-child:nth-child(odd) {
  grid-column: 1 / -1;
  max-width: calc(50% - 14px);
  margin: 0 auto;
}
.feature-card {
  background: #ffffff;
  border: 1px solid rgba(255,255,255,.2);
  border-radius: var(--r-lg); padding: 36px 32px;
  box-shadow: 0 2px 12px rgba(0,0,0,.18);
  transition: transform .28s cubic-bezier(.34,1.56,.64,1), box-shadow .28s, border-color .25s, background .25s;
  position: relative; overflow: hidden; cursor: default;
  display: flex; flex-direction: column; gap: 0;
  height: 100%;
}
.feature-card-top { margin-bottom: 20px; }
.feature-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: linear-gradient(90deg, var(--blue), #0E92A3);
  transform: scaleX(0); transform-origin: left;
  transition: transform .35s cubic-bezier(.4,0,.2,1);
}
.feature-card .feature-num {
  font-family:'DM Mono',monospace; font-size:20px; font-weight:500;
  color: var(--blue); letter-spacing:.06em;
}
.feature-card .feature-icon {
  position: absolute; top: 28px; right: 28px;
  width: 52px; height: 52px; border-radius: 14px;
  background: var(--blue-lt);
  display: flex; align-items: center; justify-content: center;
  transition: background .28s, box-shadow .28s;
}
.feature-card .feature-icon svg { transition: stroke .28s; }
.feature-card .feature-card-title {
  font-size: 18px; font-weight: 700; color: var(--ink); margin-bottom: 10px; line-height: 1.4;
}
.feature-card .feature-card-desc {
  font-size: 14px; color: var(--ink3); line-height: 1.9;
}
.feature-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 16px 48px rgba(26,174,192,.2), 0 4px 12px rgba(0,0,0,.1);
  border-color: var(--blue); background: #ffffff;
}
.feature-card:hover::before { transform: scaleX(1); }
.feature-card:hover .feature-icon {
  background: var(--blue);
  box-shadow: 0 6px 18px rgba(26,174,192,.4);
}
.feature-card:hover .feature-icon svg { stroke: white; }

/* ═══ Detail ═══ */
#detail { background: #0D2B35; }
.detail-item { display: grid; grid-template-columns: 1fr 1.2fr; gap: 36px; align-items: center; margin-bottom: 80px; }
.detail-item:last-child { margin-bottom: 0; }
.detail-item.reverse { direction: rtl; }
.detail-item.reverse > * { direction: ltr; }
.detail-label {
  font-size: 13px; font-weight: 700; letter-spacing: .1em;
  text-transform: uppercase; color: var(--blue); margin-bottom: 16px;
  display: inline-flex; align-items: center; gap: 8px;
}
.detail-label::before { content: ''; display: block; width: 20px; height: 2.5px; background: var(--blue); border-radius: 2px; }
.detail-title {
  font-family:'DM Sans','Noto Sans JP',sans-serif;
  font-size: clamp(26px,3vw,40px); font-weight: 800;
  letter-spacing: -.025em; color: var(--ink); margin-bottom: 20px; line-height: 1.25;
}
.detail-title em {
  font-style: normal;
  background: linear-gradient(90deg, var(--blue), #0E92A3);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.detail-desc { font-size: 17px; color: var(--ink2); line-height: 2; }
.detail-visual-wrap {
  border-radius: var(--r-lg); overflow: hidden;
  box-shadow: var(--sh-lg); border: 1px solid var(--border);
  background: var(--white); transition: transform .3s, box-shadow .3s;
}
.detail-visual-wrap:hover { transform: translateY(-4px); box-shadow: 0 20px 60px rgba(0,0,0,.13), 0 4px 12px rgba(0,0,0,.06); }
.detail-visual-bar { background: var(--bg2); padding: 10px 14px; display: flex; align-items: center; gap: 7px; border-bottom: 1px solid var(--border); }
.detail-visual-wrap img { width: 100%; display: block; }
.detail-sketch-wrap { position: relative; padding: 36px 24px 36px 24px; }
.sketch-border { position: absolute; inset: 0; width: 100%; height: 100%; pointer-events: none; z-index: 0; overflow: visible; }
.detail-sketch-wrap > *:not(.sketch-border) { position: relative; z-index: 1; }

/* ═══ Before/After ═══ */
#flow { background: #F0F7F9; }
#flow .section-title { color: #fff; }
#flow .section-tag   { color: var(--blue-mid); }
#flow .section-header { margin-bottom: 32px; }
.flow-desc { font-size: 18px; color: rgba(255,255,255,.85); font-weight: 600; line-height: 1.9; }
.flow-compare { display: grid; grid-template-columns: 1fr 1fr; gap: 36px; align-items: start; margin-bottom: 56px; }
.flow-col-wrap { border-radius: var(--r-lg); overflow: hidden; box-shadow: var(--sh-lg); border: 2px solid transparent; transition: transform .25s; }
.flow-col-wrap.before-wrap { border-color: rgba(107,114,128,.25); border-top: 3px solid #6B7280; }
.flow-col-wrap.after-wrap  { border-color: rgba(26,174,192,.3); box-shadow: 0 12px 40px rgba(26,174,192,.12), 0 2px 8px rgba(0,0,0,.04); }
.flow-col-wrap:hover { transform: translateY(-3px); }
.flow-col-header { display: flex; align-items: center; gap: 14px; padding: 22px 26px; }
.flow-col-header.bh { background: linear-gradient(135deg, #4B5563 0%, #374151 100%); border-bottom: 3px solid #4B5563; }
.flow-col-header.ah { background: linear-gradient(135deg, #1AAEC0 0%, #0E92A3 100%); border-bottom: 3px solid #0C7A8A; }
.flow-col-icon { width: 40px; height: 40px; border-radius: 10px; display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.bh .flow-col-icon { background: rgba(107,114,128,.3); }
.ah .flow-col-icon { background: rgba(255,255,255,.15); }
.flow-col-label { font-size: 18px; font-weight: 900; letter-spacing: .1em; text-transform: uppercase; color: #fff; }
.flow-col-sub { font-size: 13px; font-weight: 500; }
.bh .flow-col-sub { color: #D1D5DB; }
.ah .flow-col-sub { color: #A8E4EC; }
.flow-steps { display: flex; flex-direction: column; gap: 0; background: var(--white); }
.flow-step { display: flex; align-items: center; gap: 14px; padding: 18px 24px; border-bottom: 1px solid var(--border); transition: background .15s; }
.flow-step:last-child { border-bottom: none; }
.flow-step.b:hover { background: #F3F4F6; }
.flow-step.a:hover { background: #F0FAFF; }
.step-num { width: 28px; height: 28px; border-radius: 50%; flex-shrink: 0; display: flex; align-items: center; justify-content: center; font-size: 12px; font-weight: 700; font-family: 'DM Mono', monospace; }
.b .step-num { background: #F3F4F6; color: #6B7280; border: 1.5px solid #D1D5DB; }
.a .step-num { background: var(--blue-lt); color: var(--blue); border: 1.5px solid #A8E4EC; }
.step-icon-wrap { width: 36px; height: 36px; border-radius: 8px; flex-shrink: 0; display: flex; align-items: center; justify-content: center; }
.b .step-icon-wrap { background: #F3F4F6; }
.a .step-icon-wrap { background: #EFF9FB; }
.step-text { font-size: 14px; color: var(--ink2); line-height: 1.4; font-weight: 500; }
.flow-cta { text-align: center; margin-top: 48px; }

/* ═══ FAQ ═══ */
#faq { background: #ffffff; }
.faq-list { max-width: 720px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }
.faq-item { border: 1.5px solid var(--border); border-radius: var(--r-lg); overflow: hidden; background: var(--white); box-shadow: var(--sh-sm); transition: border-color .25s, box-shadow .25s; }
.faq-item.open { border-color: var(--blue); box-shadow: 0 4px 20px rgba(26,174,192,.12); }
.faq-q { display: flex; align-items: center; gap: 14px; padding: 20px 24px; cursor: pointer; background: var(--white); transition: background .2s; user-select: none; }
.faq-q:hover { background: var(--bg2); }
.q-badge { font-size: 20px; font-weight: 800; color: var(--blue); background: var(--blue-lt); border-radius: 6px; padding: 3px 10px; flex-shrink: 0; letter-spacing: .05em; }
.q-text  { font-size: 20px; font-weight: 600; color: var(--ink); flex: 1; line-height: 1.5; }
.q-toggle {
  width: 28px; height: 28px; border-radius: 50%;
  background: var(--bg2); flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  transition: background .25s, transform .35s cubic-bezier(.4,0,.2,1);
  font-size: 20px; line-height: 1; color: var(--ink3); font-weight: 400;
}
.faq-item.open .q-toggle { background: var(--blue); color: #fff; transform: rotate(45deg); }
.faq-a {
  max-height: 0; overflow: hidden;
  transition: max-height .4s cubic-bezier(.4,0,.2,1), padding .25s;
  padding: 0 24px; font-size: 17px; color: var(--ink2); line-height: 1.9;
  border-top: 0px solid var(--border);
}
.faq-item.open .faq-a { max-height: 240px; padding: 4px 24px 22px; border-top: 1px solid var(--border); }

/* ═══ CTA ═══ */
#cta { background: var(--ink); position: relative; overflow: hidden; padding: 128px 0; }
#cta::before { content: ''; position: absolute; top: -180px; right: -180px; width: 560px; height: 560px; border-radius: 50%; background: radial-gradient(circle, rgba(26,174,192,.28) 0%, transparent 70%); pointer-events: none; }
#cta::after  { content: ''; position: absolute; bottom: -180px; left: -80px; width: 480px; height: 480px; border-radius: 50%; background: radial-gradient(circle, rgba(255,184,0,.12) 0%, transparent 70%); pointer-events: none; }
.cta-inner { text-align: center; position: relative; z-index: 1; }
.cta-badge { background: rgba(255,255,255,.1); border-color: rgba(255,255,255,.2); color: rgba(255,255,255,.85); }
.cta-badge::before { background: rgba(255,255,255,.6); }
.cta-title { font-family: 'DM Sans','Noto Sans JP',sans-serif; font-size: clamp(28px,3.5vw,46px); font-weight: 800; letter-spacing: -.025em; color: #fff; margin-bottom: 16px; line-height: 1.28; }
.cta-desc { font-size: 16px; color: rgba(255,255,255,.65); margin-bottom: 44px; line-height: 1.8; }
.cta-btns { display: flex; align-items: center; justify-content: center; gap: 16px; flex-wrap: wrap; }
.btn-cta-main {
  display: inline-flex; align-items: center; gap: 12px;
  background: linear-gradient(180deg, #FFB800 0%, #E89800 100%);
  color: #fff; border: none; border-radius: 100px;
  padding: 18px 42px; font-size: 17px; font-weight: 800;
  cursor: pointer; text-decoration: none; font-family: inherit;
  box-shadow: 0 6px 28px rgba(200,130,0,.60), inset 0 1px 0 rgba(255,255,255,.28);
  transition: filter .15s, transform .2s, box-shadow .2s; letter-spacing: .01em;
}
.btn-cta-main:hover { filter: brightness(1.1); transform: translateY(-3px); box-shadow: 0 12px 40px rgba(200,130,0,.70), inset 0 1px 0 rgba(255,255,255,.28); }
.btn-outline {
  display: inline-flex; align-items: center; gap: 8px;
  background: transparent; color: rgba(255,255,255,.85);
  border: 1.5px solid rgba(255,255,255,.35); border-radius: 100px;
  padding: 16px 32px; font-size: 15px; font-weight: 600;
  cursor: pointer; text-decoration: none;
  transition: border-color .2s, background .2s, transform .15s, color .2s; font-family: inherit;
}
.btn-outline:hover { border-color: rgba(255,255,255,.8); background: rgba(255,255,255,.08); color: #fff; transform: translateY(-2px); }

/* ─── Footer ─── */
footer { background: var(--ink); border-top: 1px solid rgba(255,255,255,.08); padding: 32px 0; }
.footer-inner { display: flex; align-items: flex-start; justify-content: space-between; flex-wrap: wrap; gap: 12px; }
.footer-logo { font-family: 'DM Sans', sans-serif; font-weight: 700; font-size: 16px; color: rgba(255,255,255,.75); text-decoration: none; flex-shrink: 0; margin-top: 4px; }
.footer-right { display: flex; flex-direction: column; gap: 6px; text-align: right; max-width: 560px; }
.footer-note { font-size: 11px; color: rgba(255,255,255,.35); line-height: 1.8; }
.footer-copy { font-size: 12px; color: rgba(255,255,255,.35); }

/* ─── About ─── */
#about { background: #0D2B35; padding: 56px 0; border-bottom: none; }
.about-inner {
  display: flex; align-items: flex-start; gap: 28px;
  background: transparent; border: none;
  border-radius: 0; padding: 0;
}
.about-icon {
  width: 64px; height: 64px; border-radius: 16px;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0; overflow: hidden;
}
.about-icon img { width: 64px; height: 64px; object-fit: cover; display: block; border-radius: 16px; flex-shrink: 0; }
.about-text { flex: 1; }
.about-title {
  display: block; font-size: 18px; font-weight: 700;
  color: #4DDCEE; margin-bottom: 12px; letter-spacing: .01em;
}
.about-desc {
  font-size: 16px; color: rgba(255,255,255,0.80); line-height: 1.9; margin-bottom: 20px;
}
.about-desc strong { color: #ffffff; font-weight: 700; }
.about-checks {
  list-style: none; display: flex; flex-wrap: wrap; gap: 10px 28px;
}
.about-checks li {
  display: flex; align-items: center; gap: 7px;
  font-size: 14px; font-weight: 600; color: rgba(255,255,255,0.75);
}
.about-checks li svg { stroke: #4DDCEE; flex-shrink: 0; }

/* ─── Tablet (〜900px) ─── */
@media(max-width:900px){
  section { padding: 88px 0; }
  .hero-grid     { grid-template-columns: 1fr; gap: 48px; }
  .features-grid { grid-template-columns: 1fr; gap: 16px; }
  .features-grid .feature-card:last-child:nth-child(odd) { grid-column: auto; max-width: 100%; margin: 0; }
  .detail-item   { grid-template-columns: 1fr; gap: 32px; margin-bottom: 64px; }
  .detail-item.reverse { direction: ltr; }
  .flow-compare  { grid-template-columns: 1fr; gap: 20px; }
}

/* ─── Mobile (〜600px) ─── */
@media(max-width:600px){

  /* ── Base ── */
  section     { padding: 64px 0; }
  .container  { padding: 0 18px; }

  /* ── Nav ── */
  nav { height: 56px; }
  .nav-logo img { height: 28px; }
  nav .nav-links a:not(.btn-nav) { display: none; }
  .btn-nav { padding: 7px 16px; font-size: 12px; }

  /* ── Hero（2カラム → 1カラムに） ── */
  #hero { flex-direction: column; min-height: auto; }
  .hero-left { flex: none; width: 100%; box-shadow: none; }
  .hero-left-inner { padding: 100px 20px 48px; max-width: 100%; }
  .hero-right { flex: none; width: 100%; min-height: 340px; }
  .hero-right-inner { padding: 28px 18px; filter: none; opacity: 1; height: auto; }
  .hero-title { font-size: clamp(26px, 8vw, 38px); margin-bottom: 16px; }
  .hero-sub { font-size: 14px; line-height: 1.85; margin-bottom: 28px; max-width: 100%; }
  .btn-primary { font-size: 15px; padding: 12px 24px; gap: 8px; width: 100%; justify-content: center; }
  .btn-primary svg { width: 15px; height: 15px; }

  /* フロー図：はみ出し防止 */
  .hero-visual { width: 100%; overflow: hidden; }
  .flow-diagram { padding: 20px 12px 18px; overflow-x: auto; -webkit-overflow-scrolling: touch; }
  .flow-diagram-row { display: flex; flex-wrap: nowrap; min-width: 0; width: 100%; justify-content: space-between; }
  .flow-node { flex: 1; min-width: 0; }
  .flow-node-icon { width: 44px; height: 44px; border-radius: 12px; }
  .flow-node-icon svg { width: 20px; height: 20px; }
  .flow-node-name { font-size: 9px; word-break: break-all; text-align: center; }
  .flow-node-sub  { font-size: 8px; }
  .flow-connector { padding: 0 4px; flex-shrink: 0; }
  .connector-bar  { width: 14px; }

  /* アプリスクショ */
  .app-screenshot { border-radius: 12px; width: 100%; }

  /* ── About ── */
  #about { padding: 40px 0; }
  .about-inner { flex-direction: column; gap: 16px; padding: 24px 20px; }
  .about-icon { width: 52px; height: 52px; border-radius: 12px; }
  .about-icon img { width: 52px; height: 52px; border-radius: 12px; }
  .about-title { font-size: 16px; margin-bottom: 8px; }
  .about-desc { font-size: 14px; margin-bottom: 14px; }
  .about-checks { gap: 8px 20px; }
  .about-checks li { font-size: 13px; }

  /* ── Features ── */
  #features { padding: 64px 0; }
  .features-grid { grid-template-columns: 1fr; gap: 14px; }
  .feature-card { padding: 24px 20px; }
  .feature-card .feature-icon { width: 40px; height: 40px; top: 20px; right: 20px; border-radius: 10px; }
  .feature-card .feature-icon svg { width: 18px; height: 18px; }
  .feature-card-title { font-size: 16px; }
  .feature-card-desc  { font-size: 13px; }
  .section-title { font-size: clamp(22px, 6vw, 32px); }
  /* section-desc 改行修正 */
  #features .section-desc { max-width: 100% !important; font-size: 14px; word-break: keep-all; }

  /* ── Detail ── */
  #detail .section-title { font-size: clamp(20px, 5.5vw, 28px); }
  .detail-item { grid-template-columns: 1fr; gap: 12px; margin-bottom: 48px; }
  .detail-item.reverse { direction: ltr; }
  .detail-title { font-size: clamp(20px, 5.5vw, 28px); margin-bottom: 12px; }
  .detail-desc  { font-size: 14px; }
  .detail-label { font-size: 11px; margin-bottom: 10px; }
  .detail-sketch-wrap { padding: 28px 32px 28px 18px; }
  /* 画像を全幅に */
  .detail-visual-wrap {
    width: 100vw;
    margin-left: -18px;
    border-radius: 0;
    border-left: none;
    border-right: none;
  }
  .detail-visual-bar { display: none; }

  /* ── Before/After ── */
  .flow-compare { grid-template-columns: 1fr; gap: 16px; }
  .flow-col-header { padding: 16px 18px; gap: 10px; }
  .flow-col-label { font-size: 15px; }
  .flow-col-sub   { font-size: 12px; }
  .flow-step { padding: 14px 18px; gap: 10px; }
  .step-text { font-size: 13px; }
  .flow-desc { font-size: 15px; }
  .flow-cta { margin-top: 32px; }

  /* ── FAQ ── */
  .faq-q { padding: 16px 18px; gap: 10px; }
  .q-badge { font-size: 16px; padding: 2px 8px; }
  .q-text  { font-size: 14px; }
  .faq-item.open .faq-a { padding: 4px 18px 18px; }
  .faq-a { font-size: 14px; padding: 0 18px; }

  /* ── CTA ── */
  #cta { padding: 80px 0; }
  .cta-title { font-size: clamp(22px, 6.5vw, 34px); }
  .cta-desc  { font-size: 14px; margin-bottom: 32px; }
  .cta-btns  { flex-direction: column; align-items: stretch; gap: 12px; }
  .btn-cta-main { padding: 16px 24px; font-size: 15px; justify-content: center; }
  .btn-outline  { padding: 14px 24px; font-size: 14px; text-align: center; justify-content: center; }

  /* ── Footer ── */
  footer { padding: 28px 0; }
  .footer-inner { flex-direction: column; gap: 16px; }
  .footer-right { text-align: left; }
  .footer-note { font-size: 10px; }
  .footer-copy { font-size: 11px; }
}

/* ─── Large Screen (1600px〜) ─── */
@media (min-width: 1600px) {

  /* ── Base ── */
  .container { max-width: 1760px; padding: 0 20px; }
  section    { padding: 160px 0; }

  /* ── Nav ── */
  nav { height: 80px; }
  .nav-inner { max-width: 1760px; padding: 0 20px; }
  .nav-logo img { height: 48px; }
  .nav-links { gap: 44px; }
  .nav-links a { font-size: 19px; }
  .btn-nav { padding: 12px 30px; font-size: 18px; }

  /* ── Hero ── */
  .hero-left-inner { padding: 140px 72px 100px 64px; max-width: 680px; }
  .hero-right-inner { padding: 140px 48px 60px 48px; }
  .hero-title { font-size: clamp(52px, 4.8vw, 78px); margin-bottom: 32px; }
  .hero-sub { font-size: 22px; margin-bottom: 52px; max-width: 560px; line-height: 2; }
  .hero-left .badge { font-size: 17px; padding: 7px 20px; margin-bottom: 28px; }
  .btn-primary { font-size: 22px; padding: 18px 44px; }
  .hero-trust { margin-top: 44px; gap: 32px; }
  .hero-trust-item { font-size: 17px; }

  /* フロー図 */
  .flow-diagram { padding: 36px 32px 30px; }
  .flow-diagram-label { font-size: 14px; margin-bottom: 24px; }
  .flow-node-icon { width: 76px; height: 76px; border-radius: 20px; }
  .flow-node-icon svg { width: 36px; height: 36px; }
  .flow-node-name { font-size: 16px; }
  .flow-node-sub  { font-size: 14px; }
  .connector-bar  { width: 40px; }
  .connector-arrow { border-top-width: 7px; border-bottom-width: 7px; border-left-width: 10px; }
  .flow-connector-label { font-size: 12px; }

  /* ── Section header ── */
  .section-tag   { font-size: 24px; margin-bottom: 18px; }
  .section-title { font-size: clamp(40px, 3.6vw, 58px); margin-bottom: 22px; }
  .section-desc  { font-size: 22px; max-width: 740px; }
  .section-header { margin-bottom: 100px; }

  /* ── About ── */
  #about { padding: 80px 0; }
  .about-inner { padding: 52px 64px; gap: 44px; }
  .about-icon { width: 88px; height: 88px; border-radius: 22px; }
  .about-icon img { width: 88px; height: 88px; border-radius: 22px; }
  .about-title { font-size: 28px; margin-bottom: 18px; }
  .about-desc  { font-size: 22px; }
  .about-checks { gap: 12px 40px; }
  .about-checks li { font-size: 20px; }

  /* ── Features ── */
  .features-grid { gap: 38px; }
  .feature-card  { padding: 52px 46px; border-radius: 26px; }
  .feature-card .feature-icon { width: 72px; height: 72px; top: 40px; right: 40px; border-radius: 20px; }
  .feature-card .feature-icon svg { width: 32px; height: 32px; }
  .feature-card .feature-num  { font-size: 20px !important; }
  .feature-card-title { font-size: 26px !important; margin-bottom: 18px; }
  .feature-card-desc  { font-size: 20px !important; line-height: 2; }

  /* ── Detail ── */
  .detail-item { gap: 56px; margin-bottom: 140px; }
  .detail-sketch-wrap { padding: 56px 40px 56px 56px; }
  .detail-label { font-size: 19px; margin-bottom: 24px; }
  .detail-title { font-size: clamp(40px, 3.6vw, 58px); margin-bottom: 30px; }
  .detail-desc  { font-size: 22px; line-height: 2.1; }

  /* ── Before/After ── */
  .flow-compare  { gap: 52px; margin-bottom: 80px; }
  .flow-col-header { padding: 30px 38px; gap: 22px; }
  .flow-col-label  { font-size: 26px; }
  .flow-col-sub    { font-size: 19px; }
  .flow-col-icon   { width: 56px; height: 56px; border-radius: 14px; }
  .flow-step  { padding: 26px 36px; gap: 22px; }
  .step-num   { width: 40px; height: 40px; font-size: 16px; }
  .step-icon-wrap { width: 50px; height: 50px; border-radius: 12px; }
  .step-text  { font-size: 20px; }
  .flow-desc  { font-size: 26px; }
  .flow-cta   { margin-top: 72px; }

  /* ── FAQ ── */
  .faq-list { max-width: 1020px; gap: 20px; }
  .faq-q    { padding: 28px 36px; gap: 22px; }
  .q-badge  { font-size: 26px; padding: 6px 16px; border-radius: 9px; }
  .q-text   { font-size: 26px; }
  .q-toggle { width: 40px; height: 40px; font-size: 26px; }
  .faq-item.open .faq-a { padding: 8px 36px 32px; }
  .faq-a    { font-size: 22px; padding: 0 36px; }

  /* ── CTA ── */
  #cta { padding: 180px 0; }
  .cta-title { font-size: clamp(46px, 3.8vw, 72px); margin-bottom: 24px; }
  .cta-desc  { font-size: 22px; margin-bottom: 64px; }
  .btn-cta-main { padding: 26px 66px; font-size: 24px; }
  .btn-outline  { padding: 24px 50px; font-size: 21px; }

  /* ── Footer ── */
  footer { padding: 48px 0; }
  .footer-logo { font-size: 24px; }
  .footer-note { font-size: 15px; }
  .footer-copy { font-size: 16px; }
}

/* ═══════════════════════════════════════
   追加スタイル（クライアントフィードバック反映）
═══════════════════════════════════════ */

/* ─── Hero フロー改善 ─── */
.flow-sources {
  display: flex; flex-direction: column; gap: 8px; flex: 1.2;
}
.flow-source-item {
  display: flex; align-items: center; gap: 10px;
  font-size: 12px; font-weight: 600; color: var(--ink2);
}
.flow-source-icon {
  width: 32px; height: 32px; border-radius: 8px; border: 1.5px solid;
  display: flex; align-items: center; justify-content: center; flex-shrink: 0;
}
.flow-source-label {
  font-size: 10px; color: var(--ink3); margin-top: 4px;
  padding: 4px 8px; background: var(--bg2); border-radius: 6px;
  text-align: center;
}
.flow-icon-lg { width: 72px !important; height: 72px !important; border-radius: 18px !important; }
.flow-icon-lg svg { width: 32px !important; height: 32px !important; }
.flow-node-center { flex: 1; }
.flow-diagram-desc {
  display: flex; align-items: flex-start; gap: 10px;
  margin-top: 20px; padding: 14px 18px;
  background: var(--blue-lt); border-radius: 10px;
  font-size: 13px; color: var(--ink2); line-height: 1.7;
  border-left: 3px solid var(--blue);
}
.flow-diagram-desc svg { flex-shrink: 0; margin-top: 2px; }

/* ─── Feature visual enhancements ─── */
.feature-visual-tags {
  display: flex; flex-wrap: wrap; gap: 6px; margin-top: 16px;
}
.ftag {
  background: var(--blue-lt); color: var(--blue);
  border: 1px solid var(--border); border-radius: 6px;
  padding: 3px 10px; font-size: 12px; font-weight: 600;
  font-family: 'DM Mono', monospace;
}
.feature-steps {
  display: flex; align-items: center; gap: 8px;
  margin-top: 16px; flex-wrap: wrap;
}
.fstep {
  display: flex; align-items: center; gap: 5px;
  background: var(--bg2); border-radius: 8px;
  padding: 6px 12px; font-size: 12px; font-weight: 600; color: var(--ink2);
}
.fstep-done { background: var(--green-lt); color: var(--green); }
.fstep-num { font-family: 'DM Mono', monospace; color: var(--blue); }
.feature-patterns {
  display: flex; gap: 8px; margin-top: 16px; flex-wrap: wrap;
}
.fpat {
  display: flex; align-items: center; gap: 6px;
  padding: 5px 12px; border-radius: 8px;
  background: var(--bg2); font-size: 12px; font-weight: 600; color: var(--ink2);
}
.fpat-badge {
  width: 20px; height: 20px; border-radius: 50%;
  background: var(--blue); color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-size: 11px; font-weight: 700; flex-shrink: 0;
}
.feature-compliance { margin-top: 16px; }
.compliance-badge {
  display: inline-flex; align-items: center; gap: 7px;
  background: var(--green-lt); color: var(--green);
  border: 1px solid #6EE7B7; border-radius: 8px;
  padding: 7px 14px; font-size: 13px; font-weight: 700;
}

.feature-timer-visual {
  display: flex; align-items: center; gap: 16px;
  margin-top: 16px;
}
.timer-item {
  display: flex; align-items: center; gap: 8px;
  padding: 8px 14px; background: var(--bg2);
  border-radius: 10px; font-size: 13px; font-weight: 600; color: var(--ink2);
}
.timer-item-done { background: var(--green-lt); color: var(--green); }

/* ─── 変換パターン図解 ─── */
.pattern-grid {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 28px; margin-bottom: 80px;
}
.pattern-card {
  background: var(--white); border: 1px solid var(--border);
  border-radius: var(--r-lg); padding: 28px 24px;
  box-shadow: var(--sh);
}
.pattern-badge {
  display: inline-flex; align-items: center;
  background: var(--blue); color: #fff;
  border-radius: 6px; padding: 3px 12px;
  font-size: 12px; font-weight: 700; letter-spacing: .06em;
  margin-bottom: 12px;
}
.pattern-badge-b { background: #7C3AED; }
.pattern-badge-c { background: #D97706; }
.pattern-title {
  font-size: 18px; font-weight: 700; color: var(--ink);
  margin-bottom: 20px;
}
.pattern-diagram {
  display: flex; align-items: center; gap: 12px;
  margin-bottom: 16px;
}
.pd-col { flex: 1; }
.pd-label { font-size: 10px; font-weight: 700; color: var(--ink3); margin-bottom: 6px; text-align: center; letter-spacing: .06em; }
.pd-box {
  border-radius: 8px; overflow: hidden;
  border: 1.5px solid var(--border); font-size: 11px;
}
.pd-in  { border-color: #FCD34D; }
.pd-out { border-color: #6EE7B7; }
.pd-row {
  padding: 5px 10px; border-bottom: 1px solid var(--border);
  font-weight: 500; color: var(--ink2);
}
.pd-row:last-child { border-bottom: none; }
.pd-multi { line-height: 1.6; font-size: 10px; }
.pd-in .pd-row  { background: #FFFBEB; }
.pd-out .pd-row { background: #F0FDF4; }
.pd-arrow {
  display: flex; flex-direction: column; align-items: center; gap: 4px;
  flex-shrink: 0;
}
.pd-arrow span { font-size: 9px; font-weight: 700; color: var(--blue); }
.pattern-desc { font-size: 13px; color: var(--ink3); line-height: 1.7; }

/* ─── Before/After 再設計 ─── */
.ba-container {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 24px; align-items: stretch; margin-bottom: 56px;
}
.ba-col { background: var(--white); border-radius: var(--r-lg); overflow: hidden; box-shadow: var(--sh-lg); display: flex; flex-direction: column; height: 100%; }
.ba-before { border-top: 4px solid #6B7280; }
.ba-after  { border-top: 4px solid var(--blue); box-shadow: 0 12px 40px rgba(26,174,192,.15), 0 2px 8px rgba(0,0,0,.04); }
.ba-header {
  display: flex; align-items: center; gap: 14px;
  padding: 22px 28px;
}
.ba-header.bh { background: linear-gradient(135deg, #4B5563, #374151); }
.ba-header.ah { background: linear-gradient(135deg, var(--blue), #0E92A3); }
.ba-header-icon {
  width: 40px; height: 40px; border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.bh .ba-header-icon { background: rgba(107,114,128,.3); }
.ah .ba-header-icon { background: rgba(255,255,255,.2); }
.ba-label { font-size: 20px; font-weight: 900; color: #fff; letter-spacing: .08em; }
.ba-sublabel { font-size: 13px; color: rgba(255,255,255,.75); margin-top: 2px; }
.ba-steps { padding: 24px 28px; display: flex; flex-direction: column; gap: 0; flex: 1; }
.ba-time-save-reason {
  font-size: 12px; color: var(--blue); margin-top: 10px;
  padding: 5px 14px; background: var(--blue-lt);
  border-radius: 20px; display: inline-block; font-weight: 600;
}
.ba-step {
  display: flex; align-items: flex-start; gap: 14px;
  padding: 16px 0; border-bottom: 1px solid var(--border);
}
.ba-step:last-child { border-bottom: none; }
.ba-step-num {
  width: 30px; height: 30px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 13px; font-weight: 700; font-family: 'DM Mono', monospace;
  flex-shrink: 0;
}
.ba-step-bad  .ba-step-num { background: #F3F4F6; color: #6B7280; border: 1.5px solid #D1D5DB; }
.ba-step-good .ba-step-num { background: var(--blue-lt); color: var(--blue); border: 1.5px solid #A8E4EC; }
.ba-step-num.good { background: var(--blue-lt); color: var(--blue); border: 1.5px solid #A8E4EC; }
.ba-step-title { font-size: 15px; font-weight: 600; color: var(--ink); margin-bottom: 4px; }
.ba-step-note  { font-size: 13px; color: var(--ink3); }
.ba-step-arrow {
  text-align: center; font-size: 18px; font-weight: 700;
  padding: 4px 0; color: #9CA3AF;
}
.ba-step-arrow.good { color: var(--blue); }
.ba-step-arrow.bad  { color: #9CA3AF; }
.ba-empty-space {
  flex: 1; display: flex; align-items: center; justify-content: center;
  padding: 40px 0;
}
.ba-time-save { text-align: center; }
.ba-time-save-num {
  font-family: 'DM Sans', sans-serif;
  font-size: 56px; font-weight: 800; color: var(--blue);
  line-height: 1;
}
.ba-time-save-label { font-size: 16px; color: var(--ink3); font-weight: 600; margin-top: 6px; }
.ba-result {
  display: flex; align-items: center; gap: 10px;
  padding: 18px 28px; font-size: 15px; font-weight: 700;
  border-top: 2px solid var(--border);
}
.ba-result-bad  { color: #EF4444; background: #FEF2F2; }
.ba-result-good { color: var(--green); background: var(--green-lt); }
/* Before→After 中央矢印 */
.ba-container {
  position: relative;
}
.ba-divider {
  display: flex;
  position: absolute;
  left: 50%; top: 50%;
  transform: translate(-50%, -50%);
  z-index: 10;
  flex-direction: column;
  align-items: center;
  gap: 6px;
}
.ba-divider-arrow {
  width: 52px; height: 52px;
  background: var(--blue);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 4px 16px rgba(26,174,192,.45);
}
.ba-divider-arrow svg { stroke: #fff; }
.ba-divider-label {
  font-size: 11px; font-weight: 700; color: var(--blue);
  text-align: center; line-height: 1.4; letter-spacing: .04em;
  background: var(--white);
  padding: 3px 10px; border-radius: 20px;
  box-shadow: 0 2px 8px rgba(0,0,0,.1);
  white-space: nowrap;
}

/* ─── 導入の流れ ─── */
#process { background: #0D2B35; }
.process-steps {
  display: flex; align-items: flex-start;
  gap: 0; position: relative;
}
.process-step {
  flex: 1; text-align: center; padding: 0 16px;
  position: relative;
}
.process-num {
  font-family: 'DM Mono', monospace;
  font-size: 20px; font-weight: 700; color: var(--blue);
  margin-bottom: 16px; letter-spacing: .08em;
}
.process-icon {
  width: 64px; height: 64px; border-radius: 18px;
  background: var(--blue-lt); border: 1.5px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 16px; box-shadow: var(--sh-sm);
}
.process-title {
  font-size: 16px; font-weight: 700; color: var(--ink);
  margin-bottom: 10px;
}
.process-desc { font-size: 13px; color: var(--ink3); line-height: 1.8; }
.process-connector-h {
  width: 40px; height: 2px;
  background: linear-gradient(90deg, var(--blue), #0E92A3);
  flex-shrink: 0; margin-top: 56px; opacity: .5;
}

/* ─── お問い合わせフォーム ─── */
#contact { background: var(--bg2); }
.contact-wrap {
  max-width: 760px; margin: 0 auto;
}
.contact-form {
  background: var(--white); border-radius: var(--r-lg);
  padding: 48px 52px; box-shadow: var(--sh-lg);
  border: 1px solid var(--border);
}
.form-section-title {
  font-size: 13px; font-weight: 700; letter-spacing: .1em;
  text-transform: uppercase; color: var(--blue);
  margin-bottom: 20px; padding-bottom: 10px;
  border-bottom: 2px solid var(--blue-lt);
}
.form-group { display: flex; flex-direction: column; gap: 6px; margin-bottom: 20px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.form-label { font-size: 14px; font-weight: 600; color: var(--ink2); display: flex; align-items: center; gap: 8px; }
.form-req {
  background: #FEE2E2; color: #DC2626;
  font-size: 11px; font-weight: 700;
  padding: 2px 7px; border-radius: 4px; letter-spacing: .04em;
}
.form-input, .form-select {
  height: 44px; border: 1.5px solid var(--border);
  border-radius: 10px; padding: 0 14px;
  font-size: 15px; font-family: inherit; color: var(--ink);
  background: var(--white); transition: border-color .2s, box-shadow .2s;
  outline: none;
}
.form-input:focus, .form-select:focus {
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(26,174,192,.15);
}
.form-checks { display: flex; flex-direction: column; gap: 12px; }
.form-check {
  display: flex; align-items: center; gap: 10px;
  cursor: pointer; font-size: 15px; color: var(--ink2);
}
.form-check input[type="checkbox"] {
  width: 18px; height: 18px; border-radius: 5px; cursor: pointer;
  accent-color: var(--blue);
}
.btn-submit {
  display: flex; align-items: center; justify-content: center; gap: 10px;
  width: 100%; margin-top: 32px;
  background: linear-gradient(180deg, #FFB800 0%, #E89800 100%);
  color: #fff; border: none; border-radius: 100px;
  padding: 16px 36px; font-size: 18px; font-weight: 800;
  cursor: pointer; font-family: inherit;
  box-shadow: 0 4px 18px rgba(200,130,0,.50);
  transition: filter .15s, transform .15s;
}
.btn-submit:hover { filter: brightness(1.08); transform: translateY(-2px); }
.form-success {
  display: flex; align-items: center; gap: 12px;
  margin-top: 20px; padding: 16px 20px;
  background: var(--green-lt); border-radius: 10px;
  color: var(--green); font-size: 15px; font-weight: 600;
  border: 1px solid #6EE7B7;
}

/* ─── Responsive additions ─── */
@media(max-width:900px){
  .pattern-grid { grid-template-columns: 1fr; }
  .ba-container { grid-template-columns: 1fr; gap: 0; }
  .ba-divider {
    position: static;
    transform: none;
    flex-direction: row;
    justify-content: center;
    padding: 20px 0;
    background: transparent;
    border: none;
    gap: 10px;
  }
  .ba-divider-arrow { transform: rotate(90deg); }
  .ba-before { border-radius: var(--r-lg); }
  .ba-after  { border-radius: var(--r-lg); }
  .process-steps { flex-direction: column; align-items: center; gap: 0; }
  .process-step {
    padding: 0 16px; width: 100%; max-width: 100%;
    display: grid;
    grid-template-columns: 32px 48px 1fr;
    grid-template-rows: auto auto;
    column-gap: 12px;
    row-gap: 4px;
    align-items: start;
    text-align: left;
  }
  .process-num { margin-bottom: 0; padding-top: 2px; grid-column: 1; grid-row: 1 / 3; align-self: start; font-size: 16px; }
  .process-icon { margin: 0; flex-shrink: 0; width: 48px; height: 48px; border-radius: 14px; grid-column: 2; grid-row: 1 / 3; align-self: start; }
  .process-icon svg { width: 22px; height: 22px; }
  .process-title { margin-bottom: 2px; grid-column: 3; grid-row: 1; }
  .process-desc { grid-column: 3; grid-row: 2; }
  .process-connector-h { width: 2px; height: 20px; margin-top: 0; margin-left: 56px; }
  .ba-float-img { width: 80px !important; right: -8px !important; bottom: -8px !important; }
  .ba-float-img-after { width: 80px !important; right: -8px !important; bottom: -8px !important; }
}
@media(max-width:600px){
  .flow-sources { display: none; }
  .about-flow-diagram .flow-sources { display: flex; }
  .about-flow-diagram .flow-diagram-row {
    flex-direction: column;
    align-items: center;
    gap: 8px;
  }
  .about-flow-diagram .flow-connector {
    transform: rotate(90deg);
    padding: 4px 0;
  }
  .about-flow-diagram .flow-connector-label {
    display: none;
  }
  .about-flow-diagram .flow-sources {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }
  .about-flow-diagram .flow-source-item {
    font-size: 13px;
  }
  .about-flow-diagram .flow-node-bare img {
    width: 64px !important;
    height: 64px !important;
  }
  .about-flow-diagram .flow-node-bare img[alt="Xronos"] {
    width: 100px !important;
    height: auto !important;
  }
  .about-flow-diagram .flow-node-name { font-size: 14px !important; }
  .about-flow-diagram .flow-node-sub  { font-size: 12px !important; }
  .contact-form { padding: 28px 20px; }
  .form-row { grid-template-columns: 1fr; }
  .feature-timer-visual { flex-wrap: wrap; }
  .feature-steps { gap: 4px; }
  .pattern-diagram { flex-direction: column; gap: 8px; }
  .pd-arrow { transform: rotate(90deg); }
  /* ── パターンABC図は横並び維持 ── */
  .pattern-diagram { flex-direction: row; gap: 6px; align-items: center; }
  .pd-arrow { transform: none; }
  .pd-box { padding: 8px 6px; min-width: 0; flex: 1; }
  .pd-label { font-size: 9px; }
  /* ── 特徴カード内の図解を縦並びに ── */
  .fdiagram-wrap { flex-direction: column !important; gap: 6px !important; align-items: center !important; }
  .fdiagram-col { width: 100% !important; max-width: 240px !important; flex: none !important; }
  .fdiagram-items { align-items: center !important; }
  .fdiagram-divider { transform: rotate(90deg) !important; }
  .flayout-wrap { flex-direction: column !important; align-items: center !important; flex-wrap: nowrap !important; }
  .flayout-inputs { width: 100% !important; max-width: 240px !important; flex: none !important; }
  .flayout-arrow { flex-direction: column !important; transform: none !important; margin: 8px auto !important; align-items: center !important; gap: 4px !important; }
  .flayout-arrow span { writing-mode: horizontal-tb !important; transform: none !important; }
  .flayout-arrow svg { transform: rotate(90deg) !important; }
  .flayout-output { width: 100% !important; max-width: 240px !important; box-sizing: border-box !important; flex-shrink: unset !important; }
  .ftimer-wrap { flex-direction: column !important; align-items: stretch !important; }
  .ftimer-wrap > svg { transform: rotate(90deg) !important; align-self: center !important; }
  .ba-container { border-radius: 12px; }
  .ba-time-save-num { font-size: 40px; }
}


/* ─── Hero split layout — btn shadow ─── */
.btn-primary {
  box-shadow: 0 8px 32px rgba(200,130,0,.55), inset 0 1px 0 rgba(255,255,255,.28);
}

/* ─── セクション背景入れ替え後のテキスト調整 ─── */

/* Detail（ダーク背景） */
#detail .section-tag   { color: var(--blue-mid); }
#detail .section-title { color: #ffffff; }
#detail .section-desc  { color: rgba(255,255,255,0.65); }
#detail .detail-label  { color: var(--blue-mid); }
#detail .detail-label::before { background: var(--blue-mid); }
#detail .detail-title  { color: #ffffff; }
#detail .detail-desc   { color: rgba(255,255,255,0.80); }
#detail .pattern-card  { background: #ffffff; border-color: var(--border); }
#detail .pattern-title { color: var(--ink); }
#detail .pattern-desc  { color: var(--ink3); }
#detail .pd-label      { color: var(--ink3); }


/* Flow（薄水色背景）— もともとダーク向けのテキスト色を戻す */
#flow .section-title { color: var(--ink); }
#flow .section-tag   { color: var(--blue); }
#flow .flow-desc     { color: var(--ink3); font-weight: 500; }

/* Process（ダーク背景） */
#process .section-tag   { color: var(--blue-mid); }
#process .section-title { color: #ffffff; }
#process .section-desc  { color: rgba(255,255,255,0.65); }
#process .process-num   { color: var(--blue-mid); }
#process .process-title { color: #ffffff; }
#process .process-desc  { color: rgba(255,255,255,0.65); }
#process .process-icon  { background: rgba(255,255,255,0.08); border-color: rgba(255,255,255,0.15); }
#process .process-icon svg { stroke: #4DDCEE; }
#process .process-connector-h { background: linear-gradient(90deg, rgba(26,174,192,0.4), rgba(14,146,163,0.4)); }


/* ─── ホバーエフェクト 黒統一 ─── */
.nav-links a:hover { color: #111111; }
.feature-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 16px 48px rgba(26,174,192,.2), 0 4px 12px rgba(0,0,0,.1);
  border-color: var(--blue);
  background: #ffffff;
}
.feature-card:hover::before { background: linear-gradient(90deg, var(--blue), #0E92A3); }
.feature-card:hover .feature-icon { background: var(--blue); box-shadow: 0 6px 18px rgba(26,174,192,0.4); }
.feature-card:hover .feature-icon svg { stroke: white; }
.detail-visual-wrap:hover { transform: translateY(-4px); box-shadow: 0 20px 60px rgba(0,0,0,0.18), 0 4px 12px rgba(0,0,0,0.10); }
.faq-item.open { border-color: #111111; box-shadow: 0 4px 20px rgba(0,0,0,0.10); }
.faq-item.open .q-toggle { background: #111111; color: #fff; }
.faq-q:hover { background: #F5F5F5; }

/* ─── Hero 左右境目をなくす ─── */
/* hero-leftの既存box-shadowを上書きして境界を消す */


/* ─── About フロー図・スクリーンショット ─── */
.about-flow-wrap {
  margin-top: 48px;
}
.about-flow-diagram {
  max-width: 720px;
  margin: 0 auto;
  background: #ffffff !important;
  border-color: var(--border) !important;
  box-shadow: var(--sh) !important;
  backdrop-filter: none !important;
  -webkit-backdrop-filter: none !important;
}
.about-flow-diagram .flow-diagram-label { color: var(--ink2); font-size: 18px; font-weight: 700; letter-spacing: .02em; }
.about-flow-diagram .flow-node-name  { color: var(--ink2); }
.about-flow-diagram .flow-node-sub   { color: var(--ink3); }
.about-flow-diagram .flow-connector-label { color: var(--blue); }
.about-flow-diagram .flow-source-item span { color: var(--ink2); }
.about-flow-diagram .flow-source-label { background: var(--bg2); color: var(--ink3); }
.about-flow-diagram .flow-diagram-desc {
  background: var(--blue-lt);
  border-left-color: var(--blue);
  color: var(--ink2);
}
.about-screenshot {
  border-color: rgba(255,255,255,0.15) !important;
  box-shadow: 0 8px 32px rgba(0,0,0,0.3) !important;
}

@media(max-width:900px){
  .about-flow-wrap { grid-template-columns: 1fr; }
}
@media(max-width:600px){
  .hero-copy { padding: 56px 0; }
}

/* ─── Before/After 完了ステップ ─── */
.ba-step-finish {
  justify-content: center;
  border-bottom: none;
}
.ba-step-finish .ba-step-title {
  font-size: 16px; font-weight: 700;
  color: var(--ink3); text-align: center;
}
.ba-step-bad.ba-step-finish .ba-step-title { color: #9CA3AF; }
.ba-step-good.ba-step-finish .ba-step-title { color: var(--green); }

/* ─── フローノード：ボックスなし表示 ─── */
.flow-node-bare {
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 4px;
}
/* Xronosロゴ（黒背景なので白背景パッドを追加） */
.flow-node-bare img[src="logo.png"] {
  background: #fff;
  border-radius: 8px;
  padding: 6px 10px;
  width: 110px; height: auto;
}

/* ─── Footer 会社概要 ─── */
.footer-inner { display: flex; align-items: flex-start; justify-content: space-between; flex-wrap: wrap; gap: 40px; }
.footer-left { display: flex; flex-direction: column; gap: 10px; max-width: 380px; }
.footer-company { flex: 1; min-width: 280px; }
.footer-company-title {
  font-size: 13px; font-weight: 700; color: rgba(255,255,255,0.5);
  letter-spacing: .1em; text-transform: uppercase;
  margin-bottom: 16px; padding-bottom: 8px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}
.footer-dl { display: flex; flex-direction: column; gap: 10px; }
.footer-dl-row { display: flex; gap: 16px; align-items: baseline; }
.footer-dl-row dt {
  font-size: 11px; color: rgba(255,255,255,0.4);
  font-weight: 600; white-space: nowrap; min-width: 100px;
}
.footer-dl-row dd {
  font-size: 12px; color: rgba(255,255,255,0.7);
  line-height: 1.7;
}
@media(max-width:600px){
  .footer-inner { flex-direction: column; gap: 28px; }
  .footer-left { max-width: 100%; }
  .footer-dl-row { flex-direction: column; gap: 2px; }
  .footer-dl-row dt { min-width: auto; }
}

/* ─── Feature 01: ファイル形式図 ─── */
.fdiagram-wrap { display: flex; align-items: stretch; gap: 8px; margin-top: 18px; }
.fdiagram-col { flex: 1; }
.fdiagram-label { font-size: 10px; font-weight: 700; color: var(--ink3); letter-spacing: .06em; text-transform: uppercase; margin-bottom: 8px; text-align: center; }
.fdiagram-items { display: flex; flex-direction: column; gap: 6px; }
.fdiagram-item { display: flex; align-items: center; gap: 6px; font-size: 11px; color: var(--ink2); font-weight: 500; }
.fdiagram-icon { width: 22px; height: 22px; border-radius: 5px; display: flex; align-items: center; justify-content: center; font-size: 9px; font-weight: 800; flex-shrink: 0; }
.csv-icon { background: #FEF3C7; color: #D97706; }
.fix-icon { background: #EDE9FE; color: #7C3AED; }
.enc-icon { background: var(--blue-lt); color: var(--blue); }
.date-icon { background: var(--green-lt); color: var(--green); }
.fdiagram-divider { display: flex; align-items: center; justify-content: center; font-size: 14px; font-weight: 700; color: var(--border); padding: 0 4px; }

/* ─── Feature 03: レイアウト統一図 ─── */
.flayout-wrap { display: flex; align-items: center; gap: 10px; margin-top: 18px; flex-wrap: wrap; }
.flayout-inputs { display: flex; flex-direction: column; gap: 5px; flex: 1; min-width: 0; }
.flayout-input { border-radius: 6px; padding: 5px 8px; border-left: 3px solid; }
.fi-a { border-color: #FCD34D; background: #FFFBEB; }
.fi-b { border-color: #A78BFA; background: #F5F3FF; }
.fi-c { border-color: #6EE7B7; background: #F0FDF4; }
.flayout-row-label { font-size: 9px; font-weight: 700; color: var(--ink3); margin-bottom: 3px; }
.flayout-mini-row { display: flex; gap: 3px; flex-wrap: wrap; }
.flayout-mini-row span { font-size: 9px; background: rgba(0,0,0,.05); border-radius: 3px; padding: 1px 5px; color: var(--ink2); }
.flayout-arrow { display: flex; flex-direction: column; align-items: center; gap: 3px; flex-shrink: 0; }
.flayout-arrow span { font-size: 9px; font-weight: 700; color: var(--blue); }
.flayout-output { border-radius: 6px; padding: 6px 10px; border: 1.5px solid var(--blue); background: var(--blue-lt); flex-shrink: 0; }
.flayout-row-label.out { font-size: 9px; font-weight: 800; color: var(--blue); margin-bottom: 4px; }
.out-row span { background: var(--blue) !important; color: #fff !important; }

/* ─── Feature 04: Xronos準拠 ─── */
.fxronos-wrap { display: flex; flex-direction: column; gap: 12px; margin-top: 18px; }
.fxronos-badge { display: inline-flex; align-items: center; gap: 7px; background: var(--green-lt); color: var(--green); border: 1px solid #6EE7B7; border-radius: 8px; padding: 7px 14px; font-size: 13px; font-weight: 700; }

/* ─── Feature 05: タイマー図 ─── */
.ftimer-wrap { display: flex; align-items: center; gap: 12px; margin-top: 18px; flex-wrap: wrap; }
.ftimer-schedule { background: var(--bg2); border-radius: 10px; padding: 10px 14px; flex: 1; min-width: 160px; }
.ftimer-schedule-title { display: flex; align-items: center; gap: 5px; font-size: 10px; font-weight: 700; color: var(--ink3); margin-bottom: 8px; letter-spacing: .04em; }
.ftimer-rows { display: flex; flex-direction: column; gap: 5px; }
.ftimer-row { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.ftimer-when { font-size: 11px; font-weight: 600; color: var(--ink2); font-family: 'DM Mono', monospace; }
.ftimer-status { font-size: 9px; font-weight: 700; padding: 2px 7px; border-radius: 10px; }
.ftimer-status.active { background: var(--green-lt); color: var(--green); }
.ftimer-result { display: flex; align-items: center; gap: 7px; font-size: 13px; font-weight: 700; color: var(--green); background: var(--green-lt); border-radius: 10px; padding: 8px 12px; white-space: nowrap; }

/* ─── Hero内フロー図 ─── */
.hero-flow-diagram {
  background: #ffffff !important;
  border-color: var(--border) !important;
  box-shadow: var(--sh) !important;
  backdrop-filter: none !important;
  -webkit-backdrop-filter: none !important;
}
.hero-flow-diagram .flow-diagram-label { color: var(--ink3); }
.hero-flow-diagram .flow-node-name  { color: var(--ink2); }
.hero-flow-diagram .flow-node-sub   { color: var(--ink3); }
.hero-flow-diagram .flow-connector-label { color: var(--blue); }
.hero-flow-diagram .flow-source-item span { color: var(--ink2); }
.hero-flow-diagram .flow-source-label { background: var(--bg2); color: var(--ink3); }
.hero-flow-diagram .flow-diagram-desc {
  background: var(--blue-lt);
  border-left-color: var(--blue);
  color: var(--ink2);
}

/* ─── Feature 画像 ─── */
.feature-img-wrap {
  margin-top: 16px;
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid var(--border);
}
.feature-img-wrap img {
  width: 100%; display: block;
}

/* ─── ハンバーガーメニュー ─── */
.nav-hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px; height: 36px;
  background: none; border: none;
  cursor: pointer; padding: 4px;
}
.nav-hamburger span {
  display: block; width: 22px; height: 2px;
  background: var(--ink); border-radius: 2px;
  transition: transform .25s, opacity .25s;
}
.nav-hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-hamburger.open span:nth-child(2) { opacity: 0; }
.nav-hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

@media(max-width:900px){
  nav .nav-links a:not(.btn-nav) { display: none; }
  .nav-hamburger { display: flex; }

  #nav-links {
    display: none;
    position: fixed;
    top: 56px; left: 0; right: 0;
    background: rgba(250,250,250,.98);
    backdrop-filter: blur(14px);
    flex-direction: column;
    padding: 16px 24px 24px;
    gap: 0;
    border-bottom: 1px solid var(--border);
    box-shadow: 0 8px 24px rgba(0,0,0,.08);
    z-index: 99;
  }
  #nav-links.open { display: flex; }
  #nav-links a:not(.btn-nav) {
    display: block !important;
    padding: 14px 0;
    font-size: 16px; font-weight: 500;
    color: var(--ink2);
    border-bottom: 1px solid var(--border);
    text-decoration: none;
  }
  #nav-links a:not(.btn-nav):last-of-type { border-bottom: none; }
  #nav-links .btn-nav {
    display: block !important;
    margin-top: 16px;
    text-align: center;
    padding: 12px 24px;
    font-size: 15px;
  }
}

/* ─── Before/After 画像 ─── */
.ba-img-wrap {
  padding: 12px 28px;
  border-bottom: 1px solid var(--border);
}
.ba-img-wrap img {
  width: 100%; display: block;
  border-radius: 10px;
  object-fit: cover;
  max-height: 180px;
}
.ba-img-wrap-good {
  border-bottom: none;
}

/* ─── Before/After オーバーレイ画像 ─── */
.ba-overlay-img {
  position: absolute;
  bottom: 60px; /* ba-resultの上あたり */
  left: 50%;
  transform: translateX(-50%);
  width: 80%;
  max-width: 280px;
  border-radius: 12px;
  object-fit: cover;
  opacity: 0.25;
  pointer-events: none;
  z-index: 0;
}
.ba-overlay-img-after {
  opacity: 0.25;
}
/* コンテンツはオーバーレイより前面 */
.ba-col > *:not(.ba-overlay-img) {
  position: relative;
  z-index: 1;
}

/* ─── Before/After インライン画像（位置修正版） ─── */
.ba-overlay-img { display: none; } /* 旧スタイル無効化 */
.ba-img-inline {
  padding: 0 28px 0;
  border-bottom: 1px solid var(--border);
}
.ba-img-inline img {
  width: 100%; display: block;
  border-radius: 10px;
  object-fit: contain;
  max-height: 200px;
}
.ba-img-inline-after {
  padding: 0 28px 16px;
  border-bottom: none;
}

/* ─── Before/After フローティング画像 ─── */
.ba-wrap {
  position: relative;
}
.ba-float-img {
  position: absolute;
  right: -20px;
  bottom: -20px;
  width: 200px;
  height: auto;
  object-fit: contain;
  opacity: 0.9;
  pointer-events: none;
  z-index: 10;
}
.ba-float-img-after {
  right: -20px;
  bottom: -20px;
  width: 200px;
}
/* テキストはz-index:1でfloatより下、ba-stepはzを上げない */
.ba-steps .ba-step,
.ba-steps .ba-step-arrow,
.ba-steps .ba-empty-space,
.ba-steps .ba-step-finish {
  position: relative;
  z-index: 1;
}