/* ===== Tokens ===== */
:root {
  --c-primary: #1E40AF;
  --c-primary-700: #1D4ED8;
  --c-primary-900: #1E3A8A;
  --c-accent: #06C755;
  --c-accent-dark: #05a847;
  --c-bg: #FFFFFF;
  --c-text: #0F172A;
  --c-text-sub: #64748B;
  --c-card: #F8FAFC;
  --c-improve-bg: #E8F8EE;
  --c-improve-fg: #06C755;
  --c-problem-bg: #F1F5F9;
  --c-problem-fg: #475569;
  --c-border: #E2E8F0;
  --c-lane-cust: #F8FAFC;
  --c-lane-staff: #FAF7F2;
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.04), 0 1px 1px rgba(15, 23, 42, 0.03);
  --shadow-md: 0 4px 12px rgba(15, 23, 42, 0.06), 0 2px 4px rgba(15, 23, 42, 0.04);
  --shadow-lg: 0 12px 32px rgba(15, 23, 42, 0.08), 0 4px 12px rgba(15, 23, 42, 0.05);
  --radius-sm: 8px;
  --radius-md: 10px;
  --radius-lg: 12px;
  --maxw: 1200px;
  --maxw-narrow: 1000px;
  --maxw-faq: 800px;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Hiragino Kaku Gothic ProN", "Yu Gothic UI", "Segoe UI", system-ui, sans-serif;
  font-feature-settings: "palt" 1;
  color: var(--c-text);
  background: var(--c-bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
img, svg { display: block; max-width: 100%; }

/* ===== Header ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.0);
  border-bottom: 1px solid transparent;
  transition: background 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}
.site-header.scrolled {
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: saturate(180%) blur(8px);
  border-bottom-color: var(--c-border);
  box-shadow: 0 1px 8px rgba(15, 23, 42, 0.04);
}
.header-inner {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 18px 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 16px;
  letter-spacing: -0.01em;
  color: var(--c-text);
}
.logo-mark {
  width: 28px;
  height: 28px;
  border-radius: 7px;
  background: linear-gradient(135deg, var(--c-primary) 0%, var(--c-primary-900) 100%);
  display: grid;
  place-items: center;
  color: #fff;
  font-weight: 800;
  font-size: 13px;
}
.logo-mark::after {
  content: "";
  position: absolute;
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--c-accent);
  transform: translate(10px, 10px);
}
.logo-mark { position: relative; overflow: visible; }
.nav {
  display: flex;
  align-items: center;
  gap: 28px;
}
.nav a {
  font-size: 14px;
  color: var(--c-text-sub);
  font-weight: 500;
  transition: color 0.15s;
}
.nav a:hover { color: var(--c-text); }
.nav .nav-cta {
  margin-left: 8px;
  padding: 9px 16px;
  background: var(--c-accent);
  color: #fff;
  border-radius: var(--radius-sm);
  font-weight: 600;
  transition: transform 0.15s, box-shadow 0.15s, background 0.15s;
}
.nav .nav-cta:hover {
  background: var(--c-accent-dark);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(6, 199, 85, 0.25);
}
.menu-btn { display: none; }

/* ===== Generic section ===== */
.section {
  padding: 100px 32px;
}
.section-narrow { padding: 90px 32px; }
.container {
  max-width: var(--maxw);
  margin: 0 auto;
}
.container-narrow { max-width: var(--maxw-narrow); margin: 0 auto; }
.container-faq { max-width: var(--maxw-faq); margin: 0 auto; }

.eyebrow {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--c-primary);
  background: rgba(30, 64, 175, 0.06);
  padding: 6px 12px;
  border-radius: 999px;
  margin-bottom: 18px;
}
.section-title {
  font-size: 40px;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.3;
  margin: 0 0 14px;
  color: var(--c-text);
  text-wrap: balance;
}
.section-sub {
  font-size: 17px;
  color: var(--c-text-sub);
  margin: 0 0 56px;
  max-width: 720px;
  text-wrap: pretty;
}

/* ===== FV ===== */
.fv {
  padding: 56px 32px 96px;
  background:
    radial-gradient(1200px 600px at 50% -200px, rgba(30, 64, 175, 0.07), transparent 60%),
    linear-gradient(180deg, #f6f9ff 0%, #ffffff 60%);
  position: relative;
  overflow: hidden;
}
.fv-grid {
  max-width: var(--maxw);
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 55fr) minmax(0, 45fr);
  gap: 56px;
  align-items: center;
}
.fv-kicker {
  font-size: 13px;
  font-weight: 600;
  color: var(--c-primary);
  letter-spacing: 0.04em;
  margin-bottom: 18px;
}
.trust-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 28px;
}
.trust-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12.5px;
  font-weight: 500;
  color: var(--c-text);
  background: #fff;
  border: 1px solid var(--c-border);
  border-radius: 999px;
  padding: 6px 12px;
  box-shadow: var(--shadow-sm);
}
.trust-badge .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--c-accent);
}
.fv-h1 {
  font-size: 52px;
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: -0.025em;
  margin: 0 0 22px;
  color: var(--c-text);
  text-wrap: balance;
}
.fv-h1 em {
  font-style: normal;
  background: linear-gradient(180deg, transparent 60%, rgba(6, 199, 85, 0.22) 60%);
  padding: 0 2px;
}
.fv-sub {
  font-size: 19px;
  line-height: 1.7;
  color: var(--c-text);
  margin: 0 0 12px;
  max-width: 540px;
}
.fv-meta {
  font-size: 13.5px;
  color: var(--c-text-sub);
  margin: 0 0 32px;
}
.cta-row {
  display: flex;
  align-items: center;
  gap: 22px;
  flex-wrap: wrap;
}
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--c-accent);
  color: #fff;
  font-weight: 700;
  font-size: 17px;
  padding: 17px 34px;
  border-radius: var(--radius-md);
  box-shadow: 0 6px 16px rgba(6, 199, 85, 0.28);
  transition: transform 0.18s, box-shadow 0.18s, background 0.18s;
}
.btn-primary:hover {
  background: var(--c-accent-dark);
  transform: translateY(-2px);
  box-shadow: 0 10px 22px rgba(6, 199, 85, 0.35);
}
.btn-primary svg { width: 18px; height: 18px; }
.btn-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 15px;
  color: var(--c-text-sub);
  text-decoration: underline;
  text-underline-offset: 4px;
  text-decoration-thickness: 1px;
  font-weight: 500;
  transition: color 0.15s;
}
.btn-link:hover { color: var(--c-text); }
.cta-caption {
  margin-top: 22px;
  font-size: 13.5px;
  color: var(--c-text-sub);
  max-width: 520px;
  line-height: 1.7;
}

/* FV mock visual */
.fv-visual {
  position: relative;
  height: 520px;
}
.phone {
  position: absolute;
  width: 280px;
  height: 560px;
  background: #fff;
  border-radius: 36px;
  box-shadow: var(--shadow-lg), 0 0 0 4px #1f2937, 0 0 0 5px #0f172a;
  overflow: hidden;
  z-index: 2;
  transform: perspective(1200px) rotateY(-6deg) rotateX(2deg);
}
.fv-visual .phone {
  right: 0;
  top: 50%;
  transform: translateY(-50%) perspective(1200px) rotateY(-8deg) rotateX(2deg);
}
.phone-band {
  height: 28px;
  background: var(--c-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  font-weight: 600;
  color: #fff;
  letter-spacing: 0.04em;
}
.phone-statusbar {
  height: 22px;
  background: #fff;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 14px;
  font-size: 10.5px;
  font-weight: 600;
  color: var(--c-text);
}
.phone-statusbar .icons { display: flex; gap: 4px; align-items: center; }
.phone-statusbar .icons span {
  width: 14px; height: 8px;
  background: var(--c-text);
  border-radius: 2px;
  opacity: 0.7;
}
.phone-screen {
  background: #fafbfc;
  height: calc(100% - 50px);
  padding: 16px;
  overflow: hidden;
}
.hearing-header {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 14px;
}
.hearing-back {
  width: 24px; height: 24px;
  border-radius: 50%;
  background: #fff;
  border: 1px solid var(--c-border);
  display: grid; place-items: center;
  color: var(--c-text-sub);
}
.hearing-title {
  font-size: 13px;
  font-weight: 600;
}
.hearing-progress {
  height: 4px;
  border-radius: 999px;
  background: var(--c-border);
  margin-bottom: 14px;
  overflow: hidden;
}
.hearing-progress > span {
  display: block;
  height: 100%;
  width: 50%;
  background: var(--c-accent);
  border-radius: 999px;
}
.hearing-step {
  font-size: 10.5px;
  color: var(--c-text-sub);
  margin-bottom: 6px;
  font-weight: 500;
}
.hearing-q {
  font-size: 14px;
  font-weight: 600;
  color: var(--c-text);
  margin-bottom: 12px;
  line-height: 1.5;
}
.hearing-options {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 14px;
}
.hearing-opt {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  background: #fff;
  border: 1px solid var(--c-border);
  border-radius: 8px;
  font-size: 12.5px;
  color: var(--c-text);
}
.hearing-opt.selected {
  border-color: var(--c-accent);
  background: var(--c-improve-bg);
  color: var(--c-improve-fg);
  font-weight: 600;
}
.hearing-opt .ck {
  width: 16px; height: 16px;
  border-radius: 4px;
  border: 1.5px solid var(--c-border);
  flex-shrink: 0;
  display: grid; place-items: center;
  color: transparent;
  font-size: 11px;
}
.hearing-opt.selected .ck {
  background: var(--c-accent);
  border-color: var(--c-accent);
  color: #fff;
}
.hearing-section {
  margin-top: 10px;
  border-top: 1px solid var(--c-border);
  padding-top: 12px;
}
.hearing-section-title {
  font-size: 11px;
  font-weight: 600;
  color: var(--c-text-sub);
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.hearing-section-title .num {
  background: var(--c-card);
  border-radius: 4px;
  padding: 2px 6px;
  color: var(--c-primary);
  font-weight: 700;
}
.hearing-next {
  margin-top: 14px;
  height: 38px;
  background: var(--c-accent);
  color: #fff;
  border-radius: 8px;
  display: grid;
  place-items: center;
  font-size: 13px;
  font-weight: 600;
}

/* PC mockup behind phone */
.pc-mock {
  position: absolute;
  width: 380px;
  height: 280px;
  background: #fff;
  border-radius: 10px;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--c-border);
  overflow: hidden;
  left: 0;
  top: 60px;
  z-index: 1;
  transform: perspective(1200px) rotateY(8deg);
}
.pc-bar {
  height: 26px;
  background: #f1f5f9;
  border-bottom: 1px solid var(--c-border);
  display: flex;
  align-items: center;
  padding: 0 10px;
  gap: 6px;
}
.pc-bar .d { width: 8px; height: 8px; border-radius: 50%; background: #cbd5e1; }
.pc-bar .url {
  flex: 1;
  margin-left: 8px;
  height: 16px;
  background: #fff;
  border-radius: 4px;
  font-size: 9.5px;
  color: var(--c-text-sub);
  display: flex;
  align-items: center;
  padding: 0 8px;
}
.pc-body {
  padding: 14px;
  font-size: 11px;
}
.pc-h {
  font-size: 12.5px;
  font-weight: 700;
  color: var(--c-text);
  margin-bottom: 4px;
}
.pc-meta {
  font-size: 10px;
  color: var(--c-text-sub);
  margin-bottom: 10px;
}
.pc-table {
  border: 1px solid var(--c-border);
  border-radius: 6px;
  overflow: hidden;
}
.pc-row {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 0.8fr;
  font-size: 10.5px;
  padding: 7px 10px;
  border-bottom: 1px solid var(--c-border);
  color: var(--c-text);
  align-items: center;
}
.pc-row:last-child { border-bottom: none; }
.pc-row.head {
  background: var(--c-card);
  font-weight: 600;
  color: var(--c-text-sub);
  font-size: 9.5px;
}
.pc-pill {
  display: inline-block;
  font-size: 9.5px;
  padding: 2px 6px;
  border-radius: 999px;
  background: var(--c-improve-bg);
  color: var(--c-improve-fg);
  font-weight: 600;
}
.pc-pill.gray { background: var(--c-card); color: var(--c-text-sub); }

/* ===== Section 2 cards ===== */
.cards-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.problem-card {
  background: var(--c-card);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  box-shadow: var(--shadow-sm);
  border: 1px solid transparent;
  transition: transform 0.2s, box-shadow 0.2s;
}
.problem-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}
.icon-wrap {
  width: 56px;
  height: 56px;
  border-radius: 12px;
  background: #fff;
  display: grid;
  place-items: center;
  color: var(--c-primary);
  margin-bottom: 22px;
  border: 1px solid var(--c-border);
}
.icon-wrap svg { width: 28px; height: 28px; }
.card-h {
  font-size: 20px;
  font-weight: 700;
  margin: 0 0 10px;
  letter-spacing: -0.01em;
  color: var(--c-text);
}
.card-p {
  font-size: 15px;
  color: var(--c-text-sub);
  line-height: 1.75;
  margin: 0;
}

/* ===== Flow (As-Is / To-Be) ===== */
.section-grey { background: var(--c-card); }
.flow-wrap {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  margin-top: 8px;
}
.lane {
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  border: 1px solid var(--c-border);
  background: #fff;
}
.lane.cust { background: #fbfcfe; }
.lane.staff { background: #fdfbf6; }
.lane-head {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 1px dashed var(--c-border);
}
.lane-head .role {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--c-text-sub);
}
.lane-head .name {
  font-size: 16px;
  font-weight: 700;
  color: var(--c-text);
}
.lane-icon {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: var(--c-card);
  display: grid;
  place-items: center;
  color: var(--c-primary);
}
.lane.staff .lane-icon { background: #f6efe1; color: #8b6914; }
.steps {
  display: flex;
  flex-direction: column;
  gap: 10px;
  position: relative;
}
.step {
  display: flex;
  gap: 12px;
  padding: 14px 16px;
  border-radius: 10px;
  background: #fff;
  border: 1px solid var(--c-border);
  position: relative;
  font-size: 14px;
  line-height: 1.55;
  color: var(--c-text);
}
.step.problem {
  background: var(--c-problem-bg);
  border-color: #cbd5e1;
  color: var(--c-problem-fg);
}
.step.improve {
  background: var(--c-improve-bg);
  border-color: #b9e8c9;
  color: var(--c-improve-fg);
}
.step.dashed {
  border-style: dashed;
  background: #fff;
  color: var(--c-text-sub);
}
.step .num {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--c-card);
  font-size: 11px;
  font-weight: 700;
  display: grid;
  place-items: center;
  flex-shrink: 0;
  color: var(--c-text);
  margin-top: 1px;
}
.step.problem .num { background: #cbd5e1; color: #1e293b; }
.step.improve .num { background: var(--c-accent); color: #fff; }
.step .body { flex: 1; }
.step .badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 11px;
  font-weight: 700;
  margin-left: 8px;
}
.step.problem .badge::before { content: "⚠"; }
.step.improve .badge::before { content: "✓"; }
.step .note {
  display: block;
  font-size: 12px;
  color: var(--c-text-sub);
  margin-top: 4px;
  font-weight: 500;
}

.summary-box {
  margin-top: 40px;
  background: #fff;
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  padding: 28px 32px;
}
.summary-box.problem-summary { background: #fff; border-left: 4px solid #94a3b8; }
.summary-box.improve-summary { background: #fff; border-left: 4px solid var(--c-accent); }
.summary-h {
  font-size: 16px;
  font-weight: 700;
  color: var(--c-text);
  margin: 0 0 14px;
}
.summary-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px 32px;
}
.summary-list li {
  font-size: 14.5px;
  color: var(--c-text);
  line-height: 1.6;
  display: flex;
  gap: 10px;
}
.summary-list li::before {
  content: counter(list-item);
  counter-increment: list-item;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--c-card);
  color: var(--c-text-sub);
  font-size: 11px;
  font-weight: 700;
  display: grid;
  place-items: center;
  flex-shrink: 0;
  margin-top: 2px;
}
.improve-summary .summary-list li::before {
  background: var(--c-improve-bg);
  color: var(--c-improve-fg);
}

/* ===== Zigzag sequence ===== */
.zigzag {
  margin-top: 8px;
  border: 1px solid var(--c-border);
  border-radius: 12px;
  padding: 24px;
}
.zigzag-head {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 16px;
  position: sticky;
  top: 72px;
  background: var(--c-card);
  z-index: 5;
  padding: 14px 0;
}
.zigzag-head-cell {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 20px;
  border-radius: var(--radius-md);
  background: #fff;
  border: 1px solid var(--c-border);
  box-shadow: var(--shadow-sm);
}
.zigzag-head-cell.cust { background: #fbfcfe; }
.zigzag-head-cell.staff { background: #fdfbf6; }
.zigzag-head-cell .role {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--c-text-sub);
}
.zigzag-head-cell .name {
  font-size: 16px;
  font-weight: 700;
}
.zigzag-body {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.zigzag-axis {
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 10px;
  width: 2px;
  background: var(--c-primary);
  transform: translateX(-50%);
  z-index: 10;
}
.zigzag-loop {
  background: #FFF1E6;
  border: 1px solid #F8C99B;
  border-radius: 12px;
  padding: 8px 0 12px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  position: relative;
  z-index: 0;
}
.zigzag-loop-label {
  text-align: center;
  font-size: 12px;
  font-weight: 600;
  color: var(--c-text-sub);
  margin-top: 4px;
}
.zigzag-axis::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 100%;
  transform: translateX(-50%);
  width: 0;
  height: 0;
  border-left: 6px solid transparent;
  border-right: 6px solid transparent;
  border-top: 10px solid var(--c-primary);
}
.zigzag-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  align-items: center;
  position: relative;
  z-index: 1;
}
.zigzag-row.cust .zigzag-step { grid-column: 1; justify-self: end; }
.zigzag-row.staff .zigzag-step { grid-column: 2; justify-self: start; }
.zigzag-step {
  display: flex;
  gap: 12px;
  padding: 12px 16px;
  border-radius: 10px;
  background: #fff;
  border: 1px solid var(--c-border);
  font-size: 14px;
  line-height: 1.55;
  color: var(--c-text);
  box-shadow: var(--shadow-sm);
  width: 100%;
  max-width: 460px;
}
.zigzag-step .num {
  width: 26px; height: 26px;
  border-radius: 50%;
  background: var(--c-primary);
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  display: grid;
  place-items: center;
  flex-shrink: 0;
  margin-top: -1px;
}
.zigzag-step .body { flex: 1; }
.zigzag-step .badge.problem {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  margin-left: 8px;
  color: #DC2626;
  background: #FEE2E2;
  padding: 2px 6px;
  border-radius: 4px;
}
.zigzag-step .badge.improve {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  margin-left: 8px;
  color: var(--c-improve-fg);
  background: var(--c-improve-bg);
  padding: 2px 6px;
  border-radius: 4px;
}
.zigzag-step .note {
  display: block;
  font-size: 12px;
  color: var(--c-text-sub);
  margin-top: 4px;
}
.zigzag-role-tag {
  display: none; /* desktop: hidden, lane position conveys role */
}
.zigzag-text { display: inline; }

/* ----- Tablet: tighter columns ----- */
@media (max-width: 960px) {
  .zigzag-head-cell { padding: 12px 14px; gap: 10px; }
  .zigzag-head-cell .name { font-size: 14px; }
  .zigzag-step { font-size: 13px; padding: 12px 14px; }
}

/* ----- Mobile: single column, role tag identifies lane ----- */
@media (max-width: 720px) {
  .zigzag-axis { display: none; }
  .zigzag-head {
    position: static;
    grid-template-columns: 1fr;
    gap: 8px;
    padding: 12px 0 4px;
    margin-bottom: 12px;
  }
  .zigzag-head-cell {
    padding: 10px 14px;
    flex-direction: row;
    gap: 10px;
  }
  .zigzag-head-cell .lane-icon { width: 28px; height: 28px; }
  .zigzag-head-cell .role { font-size: 10px; }
  .zigzag-head-cell .name { font-size: 13px; }

  .zigzag-body { gap: 8px; }

  .zigzag-row,
  .zigzag-row.cust,
  .zigzag-row.staff {
    grid-template-columns: 1fr;
  }
  .zigzag-row.staff {
    margin-left: 24px;
  }
  .zigzag-row.cust .zigzag-step,
  .zigzag-row.staff .zigzag-step {
    grid-column: 1;
    justify-self: stretch;
    max-width: 100%;
  }
  /* Lane tinting via left border + bg */
  .zigzag-row.cust .zigzag-step {
    border-left: 3px solid #94a3b8;
    background: #fbfcfe;
  }
  .zigzag-row.staff .zigzag-step {
    border-left: 3px solid #c7a96b;
    background: #fdfbf6;
  }
  /* Hide arrows */
  .zigzag-row .zigzag-arrow,
  .zigzag-row .zigzag-arrow::after { display: none; }

  .zigzag-step {
    padding: 12px 14px;
    font-size: 13px;
    gap: 10px;
  }
  .zigzag-step .num {
    width: 24px; height: 24px; font-size: 11px;
  }

  /* Role tag visible on mobile */
  .zigzag-role-tag {
    display: inline-block;
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 0.04em;
    padding: 2px 7px;
    border-radius: 4px;
    margin-right: 8px;
    vertical-align: middle;
    transform: translateY(-1px);
  }
  .zigzag-role-tag.cust {
    background: #e2e8f0;
    color: #475569;
  }
  .zigzag-role-tag.staff {
    background: #f5ead0;
    color: #8a6d27;
  }
}

.compare {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  background: #fff;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--c-border);
}
.compare th, .compare td {
  padding: 22px 24px;
  text-align: left;
  font-size: 15px;
  vertical-align: top;
  border-bottom: 1px solid var(--c-border);
}
.compare tr:last-child th,
.compare tr:last-child td { border-bottom: none; }
.compare thead th {
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: 0.04em;
  background: #fafbfc;
  color: var(--c-text-sub);
  padding-top: 18px;
  padding-bottom: 18px;
}
.compare thead th.col-before { color: #475569; }
.compare thead th.col-after { color: var(--c-improve-fg); }
.compare th.row-axis {
  width: 22%;
  font-weight: 700;
  color: var(--c-text);
  background: #fff;
}
.compare td.cell-before {
  width: 36%;
  background: #fbfcfd;
  color: var(--c-problem-fg);
}
.compare td.cell-after {
  width: 42%;
  background: #f3fbf6;
  color: var(--c-improve-fg);
  font-weight: 500;
}
.compare-arrow {
  display: inline-block;
  color: var(--c-improve-fg);
  margin: 0 8px;
}

/* ===== Section 6 features ===== */
.feature-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
  margin-bottom: 96px;
}
.feature-block:last-child { margin-bottom: 0; }
.feature-block.reverse { direction: rtl; }
.feature-block.reverse > * { direction: ltr; }
.feature-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--c-improve-bg);
  color: var(--c-improve-fg);
  font-size: 12px;
  font-weight: 700;
  padding: 6px 12px;
  border-radius: 999px;
  margin-bottom: 18px;
  letter-spacing: 0.02em;
}
.feature-h {
  font-size: 30px;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.35;
  margin: 0 0 16px;
  color: var(--c-text);
  text-wrap: balance;
}
.feature-lead {
  font-size: 17px;
  color: var(--c-text);
  line-height: 1.75;
  margin: 0 0 24px;
}
.feature-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.feature-list li {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  font-size: 15px;
  color: var(--c-text);
  line-height: 1.7;
}
.feature-list li .ck {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--c-improve-bg);
  color: var(--c-improve-fg);
  display: grid;
  place-items: center;
  flex-shrink: 0;
  margin-top: 1px;
  font-size: 13px;
  font-weight: 700;
}

/* Feature visual containers */
.feat-visual { position: relative; height: 460px; }
.feat-visual.feat-visual-compact { height: 400px; }
.phones-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  height: 100%;
}
.phones-row .phone {
  position: relative;
  width: 100%;
  height: 100%;
  transform: none;
  box-shadow: var(--shadow-md), 0 0 0 5px #1f2937;
  max-width: 200px;
  margin: 0 auto;
}
.pc-large {
  width: 100%;
  height: 100%;
  background: #fff;
  border-radius: 12px;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--c-border);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}
.pc-large .pc-body { flex: 1; padding: 18px; font-size: 13px; }
.pc-large .pc-row { font-size: 12px; padding: 10px 14px; }
.pc-large .pc-row.head { font-size: 11px; }

/* Notification visual */
.notif-stack {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 24px;
  background: var(--c-card);
  border-radius: var(--radius-lg);
  height: 100%;
  justify-content: center;
}
.notif {
  background: #fff;
  border: 1px solid var(--c-border);
  border-radius: 10px;
  padding: 14px 16px;
  display: flex;
  gap: 12px;
  align-items: flex-start;
  box-shadow: var(--shadow-sm);
}
.notif-ico {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  display: grid;
  place-items: center;
  flex-shrink: 0;
  color: #fff;
  font-weight: 700;
  font-size: 13px;
}
.notif-ico.slack { background: #4A154B; }
.notif-ico.line { background: var(--c-accent); }
.notif-ico.mail { background: var(--c-primary); }
.notif-body { flex: 1; min-width: 0; }
.notif-title { font-size: 13px; font-weight: 700; margin-bottom: 4px; color: var(--c-text); display: flex; justify-content: space-between; gap: 8px; }
.notif-title .time { color: var(--c-text-sub); font-weight: 500; font-size: 11.5px; }
.notif-msg { font-size: 12.5px; color: var(--c-text-sub); line-height: 1.55; }
.notif-msg b { color: var(--c-text); font-weight: 600; }

/* Feature 2 visual: PC with arrow to sister tool */
.feat2-vis {
  display: block;
  height: 100%;
}
.feat2-arrow {
  display: grid;
  place-items: center;
  color: var(--c-accent);
}
.sister-tool {
  background: #fff;
  border: 2px dashed #cbd5e1;
  border-radius: 12px;
  padding: 18px 14px;
  text-align: center;
}
.sister-tool .si {
  width: 48px;
  height: 48px;
  border-radius: 10px;
  background: var(--c-card);
  margin: 0 auto 10px;
  display: grid;
  place-items: center;
  color: var(--c-primary);
}
.sister-tool .st-name {
  font-size: 12px;
  font-weight: 700;
  color: var(--c-text);
  line-height: 1.4;
  margin-bottom: 4px;
}
.sister-tool .st-cap {
  font-size: 10.5px;
  color: var(--c-text-sub);
  line-height: 1.4;
}

/* ===== Section 7 reasons ===== */
.reason-card {
  background: #fff;
  border-radius: var(--radius-lg);
  border: 1px solid var(--c-border);
  padding: 36px 30px;
  box-shadow: var(--shadow-sm);
  transition: transform 0.2s, box-shadow 0.2s;
}
.reason-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}
.reason-icon {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: var(--c-improve-bg);
  display: grid;
  place-items: center;
  color: var(--c-primary);
  margin-bottom: 24px;
}
.reason-icon svg { width: 32px; height: 32px; }
.reason-h {
  font-size: 22px;
  font-weight: 700;
  margin: 0 0 12px;
  letter-spacing: -0.01em;
  color: var(--c-text);
  line-height: 1.4;
}
.reason-p {
  font-size: 15px;
  color: var(--c-text-sub);
  line-height: 1.75;
  margin: 0;
}

/* ===== Section 8 profile ===== */
.profile-grid {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 56px;
  align-items: start;
}
.profile-logo {
  width: 280px;
  height: 280px;
  background: var(--c-card);
  border: 2px solid var(--c-primary);
  border-radius: var(--radius-lg);
  display: grid;
  place-items: center;
  color: var(--c-primary);
  font-size: 14px;
  font-weight: 600;
  text-align: center;
  position: sticky;
  top: 100px;
}
.profile-logo .ph-mark {
  width: 80px;
  height: 80px;
  border-radius: 16px;
  background: linear-gradient(135deg, var(--c-primary), var(--c-primary-900));
  display: grid;
  place-items: center;
  color: #fff;
  font-size: 32px;
  font-weight: 800;
  margin: 0 auto 16px;
}
.profile-logo .ph-cap { color: var(--c-text-sub); font-size: 12px; margin-top: 4px; }
.profile-content h3 {
  font-size: 24px;
  font-weight: 700;
  margin: 0 0 18px;
  letter-spacing: -0.01em;
}
.profile-bullets {
  list-style: none;
  padding: 0;
  margin: 0 0 40px;
}
.profile-bullets li {
  font-size: 16px;
  color: var(--c-text);
  line-height: 1.75;
  padding-left: 18px;
  position: relative;
  margin-bottom: 10px;
}
.profile-bullets li::before {
  content: "•";
  position: absolute;
  left: 0;
  color: var(--c-primary);
  font-weight: 700;
}
.message-block {
  background: var(--c-card);
  border-radius: var(--radius-lg);
  padding: 32px 36px;
  border-left: 4px solid var(--c-primary);
}
.message-block h4 {
  font-size: 21px;
  font-weight: 700;
  margin: 0 0 18px;
  letter-spacing: -0.01em;
}
.message-block p {
  font-size: 16px;
  line-height: 1.85;
  margin: 0 0 14px;
  color: var(--c-text);
}
.message-block p:last-child { margin-bottom: 0; }
.tmp-note {
  font-size: 12px;
  color: var(--c-text-sub);
  background: #fff8e6;
  border: 1px solid #f0e3b8;
  border-radius: 6px;
  padding: 8px 12px;
  margin-bottom: 16px;
  display: inline-block;
}

/* ===== FAQ ===== */
.faq-list {
  display: flex;
  flex-direction: column;
}
.faq-item {
  border-top: 1px solid var(--c-border);
}
.faq-item:last-child { border-bottom: 1px solid var(--c-border); }
.faq-q {
  display: flex;
  width: 100%;
  align-items: center;
  gap: 16px;
  padding: 22px 8px;
  text-align: left;
  font-size: 17px;
  font-weight: 600;
  color: var(--c-text);
  transition: color 0.15s;
}
.faq-q:hover { color: var(--c-primary); }
.faq-q .qmark {
  width: 28px;
  height: 28px;
  border-radius: 6px;
  background: var(--c-improve-bg);
  color: var(--c-improve-fg);
  display: grid;
  place-items: center;
  font-size: 13px;
  font-weight: 800;
  flex-shrink: 0;
}
.faq-q .qtext { flex: 1; line-height: 1.5; }
.faq-q .toggle {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 1px solid var(--c-border);
  display: grid;
  place-items: center;
  color: var(--c-text-sub);
  flex-shrink: 0;
  transition: transform 0.25s, background 0.15s;
  font-size: 16px;
}
.faq-item.open .toggle { transform: rotate(45deg); background: var(--c-card); }
.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease;
}
.faq-item.open .faq-a { max-height: 400px; }
.faq-a-inner {
  display: flex;
  gap: 16px;
  padding: 0 8px 24px 8px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--c-text);
}
.faq-a-inner .amark {
  width: 28px;
  height: 28px;
  border-radius: 6px;
  background: var(--c-card);
  color: var(--c-primary);
  display: grid;
  place-items: center;
  font-size: 13px;
  font-weight: 800;
  flex-shrink: 0;
}
.faq-a-inner .atext { flex: 1; padding-top: 2px; }

/* ===== Final CTA ===== */
.final-cta {
  background:
    radial-gradient(800px 400px at 80% 20%, rgba(6, 199, 85, 0.18), transparent 60%),
    linear-gradient(180deg, var(--c-primary) 0%, var(--c-primary-900) 100%);
  color: #fff;
  text-align: center;
}
.final-cta .section-title { color: #fff; font-size: 36px; }
.final-cta .section-sub {
  color: rgba(255, 255, 255, 0.78);
  margin-left: auto;
  margin-right: auto;
}
.final-cta .cta-row { justify-content: center; }
.final-cta .btn-link { color: rgba(255,255,255,0.92); }
.final-cta .btn-link:hover { color: #fff; }

/* ===== Footer ===== */
.footer {
  background: #0b1326;
  color: rgba(255,255,255,0.7);
  padding: 56px 32px 36px;
}
.footer-inner {
  max-width: var(--maxw);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 40px;
}
.footer h5 {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.5);
  margin: 0 0 16px;
}
.footer ul { list-style: none; padding: 0; margin: 0; }
.footer li { font-size: 14px; margin-bottom: 10px; }
.footer a:hover { color: #fff; }
.footer .brand-blk { font-size: 14px; line-height: 1.8; }
.footer .brand-blk .b-name { color: #fff; font-weight: 700; font-size: 16px; margin-bottom: 6px; }
.footer .copy {
  max-width: var(--maxw);
  margin: 40px auto 0;
  padding-top: 24px;
  border-top: 1px solid rgba(255,255,255,0.08);
  font-size: 12.5px;
  color: rgba(255,255,255,0.45);
  display: flex;
  justify-content: space-between;
}

/* ===== Reveal animation ===== */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.in {
  opacity: 1;
  transform: translateY(0);
}

/* ===== Mobile sticky CTA ===== */
.mobile-cta {
  display: none;
  position: fixed;
  bottom: 0; left: 0; right: 0;
  background: rgba(255,255,255,0.96);
  backdrop-filter: blur(8px);
  border-top: 1px solid var(--c-border);
  padding: 12px 16px calc(12px + env(safe-area-inset-bottom));
  z-index: 90;
  box-shadow: 0 -4px 16px rgba(15,23,42,0.06);
}
.mobile-cta .btn-primary {
  width: 100%;
  justify-content: center;
  padding: 14px;
  font-size: 16px;
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .fv-h1 { font-size: 44px; }
  .section-title { font-size: 34px; }
  .feature-h { font-size: 26px; }
  .fv-grid { gap: 32px; }
  .fv-visual { height: 460px; }
  .phone { width: 240px; height: 480px; }
  .pc-mock { width: 320px; height: 240px; }
}

@media (max-width: 768px) {
  .section { padding: 72px 20px; }
  .fv { padding: 40px 20px 60px; }
  .header-inner { padding: 14px 20px; }
  .nav { display: none; }
  .nav.open {
    display: flex;
    position: absolute;
    top: 100%; left: 0; right: 0;
    flex-direction: column;
    background: #fff;
    padding: 20px;
    gap: 18px;
    border-bottom: 1px solid var(--c-border);
    box-shadow: var(--shadow-md);
    align-items: stretch;
  }
  .nav.open a { padding: 6px 0; }
  .nav.open .nav-cta { text-align: center; }
  .menu-btn {
    display: grid;
    place-items: center;
    width: 40px; height: 40px;
    border-radius: 8px;
    color: var(--c-text);
  }
  .fv-grid { grid-template-columns: 1fr; gap: 32px; }
  .fv-visual { order: 2; height: 440px; }
  .fv-visual .phone {
    right: auto;
    left: 50%;
    transform: translate(-50%, -50%);
  }
  .pc-mock {
    left: 50%;
    transform: translateX(-80%) rotateY(8deg);
    top: 30px;
    width: 280px;
    height: 200px;
  }
  .fv-h1 { font-size: 34px; }
  .section-title { font-size: 28px; }
  .section-sub { font-size: 15px; margin-bottom: 36px; }
  .cards-3 { grid-template-columns: 1fr; gap: 16px; }
  .flow-wrap { grid-template-columns: 1fr; gap: 20px; }
  .summary-list { grid-template-columns: 1fr; }
  .compare, .compare thead, .compare tbody, .compare tr, .compare th, .compare td {
    display: block;
    width: 100% !important;
  }
  .compare thead { display: none; }
  .compare tr {
    border: 1px solid var(--c-border);
    border-radius: var(--radius-md);
    margin-bottom: 16px;
    overflow: hidden;
  }
  .compare tr { background: #fff; }
  .compare th.row-axis { padding-bottom: 10px; }
  .feature-block, .feature-block.reverse {
    direction: ltr;
    grid-template-columns: 1fr;
    gap: 28px;
    margin-bottom: 64px;
  }
  .feature-block .feat-text { order: 1; }
  .feature-block .feat-visual { order: 2; height: 420px; }
  .feat2-vis { grid-template-columns: 1fr; height: auto; gap: 16px; }
  .feat2-arrow { transform: rotate(90deg); }
  .sister-tool { max-width: 220px; margin: 0 auto; }
  .profile-grid { grid-template-columns: 1fr; gap: 32px; }
  .profile-logo { position: static; width: 200px; height: 200px; margin: 0 auto; }
  .footer-inner { grid-template-columns: 1fr; gap: 28px; }
  .footer .copy { flex-direction: column; gap: 8px; }
  .mobile-cta { display: block; }
  .final-cta { padding-bottom: 100px; }
  body { padding-bottom: 0; }
  .feature-h { font-size: 24px; }
}