/* ============================================================
 * Biz LP (For Businesses) styles
 * ※ box-sizing / reset / font-family は /css/common.css 側で適用される
 * ============================================================ */

/* width/height 属性 + CSS で width だけ指定 のケースで縦横比が崩れるのを防ぐ。
   すべての img を「max-width: 100%; height: auto」前提でレンダリングさせる */
img {
  max-width: 100%;
  height: auto;
}

/* ── TOKENS ── */
:root {
  --color-primary: #1c5ae1;
  --color-primary-200: #a4bdf3;
  --color-primary-150: #b5c8f4;
  --color-primary-100: #d2def9;
  --color-primary-050: #eef3fd;
  --color-yellow: #f5da0b;
  --color-yellow-dark: #d4bb00;
  --color-dark: #2a2a2a;
  --color-text: #4a4a4a;
  --color-grey-400: #6b6b6b;
  --color-grey-200: #e8e8e8;
  --color-alert-warn: #fff8e1;
  --color-alert-err: #fff5f5;
  --px: clamp(20px, 5vw, 80px);
  --section-py: clamp(64px, 9vw, 120px);
  --max-content: 900px;
}

/* ── FOCUS ── */
:focus-visible {
  outline: 3px solid var(--color-primary);
  outline-offset: 3px;
  border-radius: 4px;
}

/* ── SKIP LINK ── */
.skip-link {
  position: absolute;
  top: -100%;
  left: 8px;
  background: var(--color-primary);
  color: white;
  font-weight: 700;
  font-size: 14px;
  padding: 8px 16px;
  border-radius: 4px;
  text-decoration: none;
  z-index: 9999;
}
.skip-link:focus {
  top: 8px;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ── UTILS ── */
.section-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-weight: 700;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--color-primary);
  text-transform: uppercase;
}
.section-h2 {
  font-weight: 700;
  font-size: clamp(24px, 3.2vw, 42px);
  line-height: 1.4;
  color: var(--color-dark);
  text-align: center;
}
.section-h2--nowrap {
  white-space: nowrap;
}
.section-lead {
  font-weight: 500;
  font-size: clamp(14px, 1.4vw, 17px);
  line-height: 2;
  color: var(--color-text);
  text-align: center;
  max-width: 680px;
  text-wrap: balance;
}
.section-header {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  text-align: center;
  width: min(var(--max-content), 100%);
}
.tag {
  display: inline-flex;
  align-items: center;
  background: var(--color-primary);
  color: white;
  font-weight: 700;
  font-size: 11px;
  letter-spacing: 0.06em;
  border-radius: 240px;
  padding: 3px 14px;
  align-self: flex-start;
}
.tag--outline {
  background: transparent;
  border: 1.5px solid var(--color-primary);
  color: var(--color-primary);
}
.tag--yellow {
  background: var(--color-yellow);
  color: var(--color-dark);
}
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary);
  color: white;
  font-weight: 700;
  font-size: clamp(15px, 1.5vw, 17px);
  border-radius: 240px;
  padding: clamp(14px, 1.5vw, 18px) clamp(32px, 4vw, 52px);
  text-decoration: none;
  transition: opacity 0.2s;
  border: none;
  cursor: pointer;
}
.btn-primary:hover {
  opacity: 0.85;
}
.btn-outline {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: #ffffff;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
  font-weight: 700;
  font-size: clamp(15px, 1.5vw, 17px);
  border-radius: 240px;
  padding: clamp(14px, 1.5vw, 18px) clamp(32px, 4vw, 52px);
  text-decoration: none;
  transition: opacity 0.2s;
}
.btn-outline:hover {
  opacity: 0.75;
}

/* ── HEADER ── */
.site-header {
  background: #ffffff;
  border-bottom: 1px solid var(--color-grey-200);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 22px max(var(--px), calc(50vw - 600px)) 22px max(var(--px), calc(50vw - 640px));
  position: relative;
}
.site-header__logo-link {
  display: flex;
  flex-shrink: 0;
}
.site-header__logo {
  width: clamp(168px, 19vw, 240px);
  height: auto;
  aspect-ratio: 895 / 129;
  display: block;
  flex-shrink: 0;
}
.site-header__nav {
  display: flex;
  gap: 32px;
  align-items: center;
}
.site-header__nav-link {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-dark);
  text-decoration: none;
  opacity: 0.8;
}
.site-header__nav-link:hover {
  opacity: 1;
  color: var(--color-primary);
}
.site-header__actions {
  display: flex;
  gap: 8px;
  align-items: center;
}
.site-header__cta {
  display: inline-flex;
  align-items: center;
  background: var(--color-primary);
  color: white;
  font-weight: 700;
  font-size: 14px;
  border-radius: 240px;
  padding: 8px 22px;
  text-decoration: none;
  transition: opacity 0.2s;
}
.site-header__cta:hover {
  opacity: 0.85;
}
.site-header__cta--ghost {
  background: transparent;
  color: var(--color-primary);
  border: 1.5px solid var(--color-primary);
}
.site-header__kicker {
  display: inline-flex;
  align-items: center;
  background: var(--color-yellow);
  border-radius: 240px;
  padding: 6px 20px;
  font-weight: 700;
  font-size: clamp(11px, 0.9vw, 13px);
  color: var(--color-dark);
  letter-spacing: 0.04em;
  white-space: nowrap;
  position: absolute;
  right: max(var(--px), calc(50vw - 540px));
  margin: 0;
}
@media (max-width: 900px) {
  .site-header__nav {
    display: none;
  }
  .site-header__kicker {
    position: static;
    margin-left: auto;
    right: auto;
  }
}
@media (max-width: 640px) {
  .site-header__kicker {
    white-space: normal;
    font-size: 10px;
    padding: 5px 12px;
    text-align: center;
    max-width: 48%;
  }
}

/* ── HERO ── */
.hero {
  background: #ffffff;
  padding: 0 var(--px) clamp(60px, 10vw, 140px);
  overflow: hidden;
  position: relative;
}
.hero__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: auto auto;
  column-gap: clamp(24px, 3vw, 48px);
  row-gap: 0;
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}
.hero__left {
  display: flex;
  flex-direction: column;
  gap: clamp(14px, 1.8vw, 22px);
  padding: clamp(40px, 5.5vw, 76px) 0 clamp(32px, 4vw, 48px);
  z-index: 2;
  align-self: start;
}
.hero__heading {
  font-weight: 700;
  font-size: clamp(24px, 3.4vw, 44px);
  line-height: 1.25;
  color: var(--color-dark);
}
.hero__heading em {
  font-style: normal;
  color: var(--color-primary);
}
.hero__subheading {
  font-weight: 700;
  font-size: clamp(15px, 1.6vw, 21px);
  line-height: 1.4;
  color: var(--color-dark);
  margin-top: clamp(0px, 3vw, 40px);
}
.hero__subheading em {
  font-style: normal;
  color: var(--color-primary);
}
.hero__bullets {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.hero__bullet {
  display: flex;
  align-items: center;
  gap: clamp(12px, 1.4vw, 16px);
}
.hero__bullet-icon {
  flex-shrink: 0;
  width: clamp(36px, 4vw, 52px);
  height: clamp(36px, 4vw, 52px);
  border-radius: 50%;
  background: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
}
.hero__bullet-icon img {
  width: 55%;
  height: 55%;
  display: block;
}
.hero__bullet-text {
  font-weight: 600;
  font-size: 14px;
  line-height: 1.5;
  color: var(--color-dark);
  padding-right: 16px;
}
.hero__note {
  font-size: clamp(12px, 1.1vw, 13px);
  color: var(--color-grey-400);
  font-weight: 400;
  margin-top: 8px;
}
.hero__cta-row {
  grid-column: 1 / -1;
  display: flex;
  gap: 16px;
  align-items: center;
  flex-wrap: nowrap;
  padding-bottom: clamp(32px, 8vw, 112px);
}
.hero__cta-row .btn-primary,
.hero__cta-row .btn-outline {
  font-size: clamp(15px, 1.6vw, 19px);
  padding: clamp(16px, 1.8vw, 22px) clamp(36px, 4.5vw, 58px);
}
.hero__divider {
  width: 1px;
  height: clamp(32px, 4vw, 44px);
  background: var(--color-dark);
  flex-shrink: 0;
  opacity: 0.25;
  align-self: center;
}
.hero__app-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1px;
  padding: clamp(14px, 1.6vw, 20px) clamp(20px, 3vw, 36px);
}
.hero__app-sub {
  font-size: 10px;
  font-weight: 500;
  color: var(--color-text);
  line-height: 1;
  white-space: nowrap;
}
.hero__app-main {
  font-size: clamp(12px, 1.2vw, 14px);
  font-weight: 700;
  white-space: nowrap;
}

/* right side */
.hero__right {
  position: relative;
  min-height: clamp(340px, 55vh, 560px);
  align-self: stretch;
}

/* audio-waveform: 3層をx・yずらして左下→右上の流れを作る */
.hero::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: clamp(180px, 26vw, 320px);
  background: linear-gradient(
    to bottom,
    rgba(210, 222, 249, 0) 0%,
    rgba(210, 222, 249, 0) 40%,
    rgba(210, 222, 249, 0.1) 55%,
    rgba(210, 222, 249, 0.3) 68%,
    rgba(210, 222, 249, 0.6) 80%,
    rgba(210, 222, 249, 0.85) 92%,
    rgba(210, 222, 249, 1) 100%
  );
  pointer-events: none;
  z-index: 0;
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    url('/biz/img/audio-waveform.svg'), url('/biz/img/audio-waveform.svg'),
    url('/biz/img/audio-waveform.svg');
  background-size:
    34% auto,
    34% auto,
    34% auto;
  background-repeat: no-repeat, no-repeat, no-repeat;
  background-position:
    0% 100%,
    50% 50%,
    100% 0%;
  z-index: 0;
  filter: brightness(0) saturate(100%) invert(28%) sepia(98%) saturate(700%) hue-rotate(210deg)
    opacity(0.15);
  pointer-events: none;
}

/* screenshots composite — ブラウザフレームとスマホを一体のプロダクトビジュアルとして見せる */
.hero__screens {
  position: absolute;
  inset: 0;
  z-index: 1;
}

/* screen.svg: ブラウザフレーム込みの合成画像 */
.hero__screen-main {
  position: absolute;
  top: 50%;
  left: 0;
  transform: translateY(-50%) translateX(clamp(-48px, -4vw, -16px));
  width: 100%;
  height: auto;
  display: block;
  filter: drop-shadow(0 20px 40px rgba(0, 0, 0, 0.18));
}

/* responsive */
@media (max-width: 900px) {
  .hero::before {
    bottom: auto;
    height: 56vw;
    min-height: 240px;
    max-height: 420px;
    background-size:
      30% auto,
      30% auto,
      30% auto;
    background-position:
      0% calc(100% + 40px),
      50% 50%,
      100% 0%;
  }
  .hero__grid {
    grid-template-columns: 1fr;
    grid-template-rows: auto auto auto;
  }
  .hero__right {
    height: 56vw;
    min-height: 240px;
    max-height: 420px;
    align-self: auto;
    order: -1;
  }
  .hero__screen-main {
    left: 50%;
    width: 100%;
    height: auto;
    max-height: 90%;
    transform: translate(-50%, -50%);
  }
  .hero__left {
    padding: clamp(20px, 4vw, 40px) 0 clamp(20px, 3vw, 32px);
  }
  .hero__heading {
    white-space: normal;
  }
  .hero__cta-row {
    grid-column: 1;
    flex-wrap: wrap;
    gap: 10px;
    padding-bottom: clamp(24px, 6vw, 56px);
    justify-content: center;
    align-items: stretch;
  }
  .hero__cta-row .btn-primary,
  .hero__cta-row .btn-outline {
    font-size: 15px;
    padding: 13px clamp(20px, 5vw, 36px);
    align-self: stretch;
  }
  .hero__app-btn {
    padding: 10px clamp(16px, 4vw, 28px);
  }
}
@media (max-width: 640px) {
  .hero__right {
    height: 60vw;
  }
  .hero__divider {
    display: none;
  }
  .hero__app-main {
    white-space: normal;
    text-align: center;
    line-height: 1.3;
  }
}
@media (max-width: 480px) {
  .hero__right {
    height: 65vw;
  }
  .hero__bullets {
    gap: 10px;
  }
  .hero__bullet-icon {
    width: 32px;
    height: 32px;
  }
  .hero__cta-row {
    gap: 8px;
  }
}

/* ── PROBLEM ── */
.problem .section-lead {
  max-width: 736px;
  text-wrap: unset;
}
.problem {
  position: relative;
}
.problem::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: clamp(120px, 18vw, 240px);
  background: linear-gradient(
    to bottom,
    rgba(255, 255, 255, 0) 0%,
    rgba(255, 255, 255, 0) 20%,
    rgba(255, 255, 255, 0.05) 35%,
    rgba(255, 255, 255, 0.15) 50%,
    rgba(255, 255, 255, 0.35) 65%,
    rgba(255, 255, 255, 0.65) 80%,
    rgba(255, 255, 255, 0.88) 92%,
    rgba(255, 255, 255, 1) 100%
  );
  pointer-events: none;
  z-index: 0;
}
.problem {
  background: var(--color-primary-100);
  padding: clamp(24px, 4vw, 48px) var(--px) var(--section-py);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: clamp(40px, 6vw, 64px);
}
.problem__grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 16px;
  width: min(var(--max-content), 100%);
}
.problem__standalone {
  width: min(var(--max-content), 100%);
}
.problem__standalone .problem__card {
  width: 100%;
}
@media (max-width: 700px) {
  .problem__grid {
    grid-template-columns: 1fr;
  }
}
.problem__group-label {
  font-size: clamp(11px, 1.1vw, 12px);
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.problem__arrow {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  font-size: clamp(11px, 1.1vw, 12px);
  font-weight: 600;
  color: var(--color-primary);
}
.problem__card {
  background: white;
  border-radius: 20px;
  padding: clamp(24px, 3.5vw, 40px);
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.problem__card--result {
  background: var(--color-primary-050);
}
.problem__stat {
  font-weight: 700;
  font-size: clamp(28px, 3.2vw, 40px);
  color: var(--color-primary);
  line-height: 1;
  font-family: 'Plus Jakarta Sans', sans-serif;
  letter-spacing: -0.02em;
  white-space: nowrap;
}
.problem__stat-unit {
  font-size: 0.38em;
  font-weight: 600;
  vertical-align: baseline;
}
.problem__card-title {
  font-weight: 700;
  font-size: clamp(12px, 1.3vw, 14px);
  color: var(--color-dark);
  line-height: 1.5;
  white-space: nowrap;
}
.problem__card-body {
  font-weight: 500;
  font-size: clamp(13px, 1.2vw, 15px);
  line-height: 1.8;
  color: var(--color-text);
}
.problem__card-source {
  font-size: 12px;
  color: var(--color-grey-400);
  font-weight: 500;
}
.problem__stat-bar {
  display: flex;
  align-items: stretch;
  justify-content: center;
  width: 100%;
  background: white;
  border-radius: 20px;
  overflow: hidden;
}
.problem__stat-bar-item {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 20px 24px;
  gap: 4px;
}
.problem__stat-bar-item + .problem__stat-bar-item {
  border-left: 1px solid rgba(0, 0, 0, 0.08);
}
.problem__stat-bar-num {
  font-size: clamp(24px, 3.5vw, 40px);
  font-weight: 700;
  color: var(--color-dark);
  line-height: 1.1;
}
.problem__stat-bar-num span {
  font-size: 0.5em;
  font-weight: 600;
  vertical-align: baseline;
}
.problem__stat-bar-label {
  font-size: clamp(11px, 1.1vw, 13px);
  color: var(--color-text);
  font-weight: 500;
}
.problem__stat-bar-source {
  font-size: clamp(10px, 1vw, 11px);
  color: var(--color-grey-400);
}

/* ── CALLOUT BAND ── */
.callout-band {
  background: #ffffff;
  padding: clamp(20px, 3vw, 40px) var(--px) clamp(80px, 14vw, 140px);
  display: flex;
  flex-direction: column;
  align-items: center;
  position: relative;
  overflow: hidden;
}
.callout-band::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: clamp(80px, 12vw, 160px);
  background: linear-gradient(
    to bottom,
    rgba(210, 222, 249, 0) 0%,
    rgba(210, 222, 249, 0.02) 15%,
    rgba(210, 222, 249, 0.1) 30%,
    rgba(210, 222, 249, 0.25) 45%,
    rgba(210, 222, 249, 0.5) 60%,
    rgba(210, 222, 249, 0.75) 75%,
    rgba(210, 222, 249, 0.92) 90%,
    rgba(210, 222, 249, 1) 100%
  );
  pointer-events: none;
  z-index: 0;
}
.callout-band__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  z-index: 1;
  position: relative;
}
.callout-band__inner p {
  font-weight: 700;
  font-size: clamp(17px, 2.2vw, 28px);
  line-height: 1.9;
  color: var(--color-dark);
  text-align: center;
}
.callout-band__inner p:last-child {
  color: #111111;
  font-size: clamp(20px, 2.8vw, 36px);
  margin-top: 12px;
}
.callout-band__inner .fade-in--strong {
  transform: translateY(24px) scale(0.99);
  transition-duration: 1.6s;
  transition-timing-function: cubic-bezier(0.25, 0.46, 0.45, 0.94);
}
.callout-band__inner .fade-in--strong.is-visible {
  transform: translateY(0) scale(1);
}
.callout-band__rect {
  position: absolute;
  top: 40%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: clamp(264px, 40vw, 475px);
  height: auto;
  pointer-events: none;
  z-index: 0;
}
.callout-band__wave {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  width: 100%;
  height: auto;
  opacity: 0.04;
  pointer-events: none;
}

/* ── WHY ── */
.why {
  background: var(--color-primary-100);
  padding: var(--section-py) var(--px);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: clamp(20px, 3vw, 32px);
}
.why__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  width: min(var(--max-content), 100%);
}
.why__item {
  background: white;
  border-radius: 16px;
  padding: clamp(20px, 2.5vw, 32px);
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.why__item-title {
  font-weight: 700;
  font-size: clamp(15px, 1.6vw, 18px);
  color: var(--color-dark);
  line-height: 1.5;
}
.why__item-title span {
  display: inline;
  background: linear-gradient(transparent 45%, rgba(245, 218, 11, 0.6) 45%);
  border-radius: 3px;
  -webkit-box-decoration-break: clone;
  box-decoration-break: clone;
  padding: 0 3px;
}
.why__item-body {
  font-weight: 500;
  font-size: clamp(13px, 1.2vw, 14px);
  line-height: 1.8;
  color: var(--color-text);
}
@media (max-width: 640px) {
  .why__grid {
    grid-template-columns: 1fr;
  }
}

/* ── OVERVIEW ── */
.overview {
  background: var(--color-primary-050);
  padding: var(--section-py) var(--px);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: clamp(40px, 6vw, 64px);
}
.overview__pillars {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  width: min(var(--max-content), 100%);
}
.pillar {
  border-radius: 20px;
  padding: clamp(28px, 4vw, 44px);
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.pillar--user,
.pillar--biz {
  background: #ffffff;
}
.pillar__icon {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  background: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.pillar__icon svg {
  width: 26px;
  height: 26px;
  fill: white;
}
.pillar__label {
  font-weight: 700;
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--color-primary);
}
.pillar__title {
  font-weight: 700;
  font-size: clamp(18px, 2.2vw, 26px);
  color: var(--color-dark);
  line-height: 1.4;
}
.pillar__body {
  font-weight: 500;
  font-size: clamp(13px, 1.3vw, 15px);
  line-height: 1.8;
  color: var(--color-text);
}
.pillar__list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.pillar__list li {
  font-weight: 500;
  font-size: clamp(13px, 1.2vw, 14px);
  line-height: 1.7;
  color: var(--color-text);
  padding-left: 16px;
  position: relative;
}
.pillar__list li::before {
  content: '›';
  position: absolute;
  left: 0;
  color: var(--color-primary);
  font-weight: 700;
}
@media (max-width: 640px) {
  .overview__pillars {
    grid-template-columns: 1fr;
  }
}
.overview__system img {
  width: min(var(--max-content), 100%);
  height: auto;
  display: block;
  margin: 0 auto;
}
.overview__system {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  width: 100%;
}
.overview__system-lead {
  font-weight: 700;
  font-size: clamp(15px, 1.5vw, 18px);
  line-height: 1.9;
  color: var(--color-text);
  text-align: center;
  max-width: 680px;
}

/* ── FEATURES USER ── */
.feat-user {
  background: white;
  padding: var(--section-py) var(--px);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: clamp(24px, 4vw, 40px);
}
.feat-user__body {
  display: flex;
  gap: clamp(32px, 5vw, 64px);
  align-items: stretch;
  width: min(var(--max-content), 100%);
}
.feat-user__img-wrap {
  flex: 0 0 clamp(160px, 22vw, 260px);
  position: relative;
  border-radius: 20px;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.2);
  overflow: hidden;
  aspect-ratio: 390 / 775;
  align-self: start;
}
.feat-user__img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  display: block;
  border-radius: 20px;
}
.feat-user__content {
  flex: 1;
  display: flex;
  flex-direction: column;
}
.feat-user__bottom {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-top: auto;
}
.feat-user__personas-label {
  font-weight: 700;
  font-size: clamp(13px, 1.3vw, 15px);
  color: var(--color-dark);
  margin-bottom: 10px;
  text-align: center;
}
.feat-user__items {
  display: flex;
  flex-direction: column;
  gap: 28px;
}
.feat-user__items--row {
  flex-direction: column;
  width: min(var(--max-content), 100%);
  align-self: center;
}
.feat-user__personas {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
.persona {
  background: #f7f8fa;
  border-radius: 14px;
  padding: 16px 14px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  text-align: center;
}
.persona__img {
  width: clamp(56px, 7vw, 80px);
  border-radius: 12px;
  display: block;
}
.persona__name {
  font-weight: 700;
  font-size: clamp(13px, 1.3vw, 15px);
  color: var(--color-dark);
}
.persona__desc {
  font-size: 12px;
  color: var(--color-text);
  line-height: 1.6;
}
.feat-item {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.feat-item__heading {
  display: flex;
  align-items: center;
  gap: 10px;
}
.feat-item__icon {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.feat-item__icon svg {
  width: 20px;
  height: 20px;
  fill: white;
}
.feat-item__title {
  font-weight: 700;
  font-size: clamp(15px, 1.6vw, 18px);
  color: var(--color-dark);
  line-height: 1.4;
}
.feat-item__body {
  font-weight: 500;
  font-size: clamp(13px, 1.3vw, 15px);
  line-height: 1.8;
  color: var(--color-text);
}
@media (max-width: 900px) {
  .feat-user__body {
    flex-direction: column;
    align-items: center;
  }
  .feat-user__img-wrap {
    flex: 0 0 auto;
    width: clamp(140px, 38vw, 220px);
    align-self: auto;
  }
  .feat-user__items--row {
    flex-direction: column;
  }
}

/* ── FEATURES BIZ ── */
.feat-biz {
  background: white;
  padding: clamp(16px, 3vw, 32px) var(--px) var(--section-py);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: clamp(40px, 6vw, 64px);
}
.feat-biz__layout {
  width: min(var(--max-content), 100%);
  display: grid;
  grid-template-columns: clamp(300px, 46vw, 460px) 1fr;
  gap: clamp(16px, 2.5vw, 28px);
}
.feat-biz__img-wrap {
  position: relative;
  border-radius: 12px;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.2);
  overflow: hidden;
}
.feat-biz__img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top left;
  display: block;
}
.feat-biz__triage {
  grid-column: 1 / -1;
  background: white;
  border-radius: 12px;
  padding: 20px 24px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  align-items: center;
}
.triage-alert {
  border-radius: 10px;
  padding: 12px 16px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.triage-alert--warn {
  background: var(--color-alert-warn);
  border: 1px solid rgba(245, 218, 11, 0.4);
}
.triage-alert--err {
  background: var(--color-alert-err);
  border: 1px solid rgba(229, 57, 53, 0.35);
}
.triage-alert__label {
  font-weight: 700;
  font-size: 13px;
}
.triage-alert__label--warn {
  color: #8a6d00;
}
.triage-alert__label--err {
  color: #c62828;
}
.triage-alert__title {
  font-weight: 600;
  font-size: clamp(13px, 1.2vw, 15px);
  color: var(--color-dark);
}
.triage-alert__desc {
  font-size: 12px;
  color: var(--color-grey-400);
  line-height: 1.7;
}
.triage-combo {
  background: white;
  border-radius: 12px;
  padding: 16px 18px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.triage-combo__note {
  font-weight: 600;
  font-size: clamp(12px, 1.2vw, 14px);
  color: var(--color-primary);
  line-height: 1.8;
  text-align: center;
}
.triage-combo__row {
  display: flex;
  gap: 8px;
  align-items: stretch;
  width: 100%;
  max-width: 400px;
}
.triage-combo__cell {
  flex: 1;
  background: var(--color-primary-150);
  border-radius: 10px;
  padding: 12px 14px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  align-items: center;
  text-align: center;
}
.triage-combo__cell-label {
  font-size: 11px;
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: 0.05em;
}
.triage-combo__cell-title {
  font-weight: 700;
  font-size: clamp(12px, 1.2vw, 14px);
  color: var(--color-dark);
}
.triage-combo__cell-desc {
  font-size: 11px;
  color: var(--color-text);
}
.triage-combo__cross {
  display: flex;
  align-items: center;
  font-size: 18px;
  color: var(--color-primary);
  font-weight: 700;
}
@media (max-width: 900px) {
  .feat-biz__layout {
    grid-template-columns: 1fr;
  }
  .feat-biz__img-wrap {
    aspect-ratio: 1158 / 635;
  }
  .feat-biz__triage {
    flex-direction: column;
    align-items: stretch;
  }
}

/* ── EVIDENCE ── */
.feat-biz__evidence-card {
  background: var(--color-yellow);
  border-radius: 24px;
  padding: clamp(32px, 5vw, 56px);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: clamp(32px, 4vw, 48px);
  width: min(var(--max-content), 100%);
}
.feat-biz__evidence-card .section-h2 {
  color: var(--color-dark);
  font-size: clamp(18px, 2vw, 26px);
}
.feat-biz__evidence-card .cta-section__row {
  margin-top: 0;
}
.evidence__cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  width: min(680px, 100%);
}
.evidence__card {
  background: white;
  border-radius: 20px;
  padding: clamp(24px, 3.5vw, 40px);
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.evidence__card-title {
  font-weight: 700;
  font-size: clamp(15px, 1.6vw, 18px);
  color: var(--color-dark);
  line-height: 1.5;
}
.evidence__card-body {
  font-weight: 500;
  font-size: clamp(13px, 1.2vw, 15px);
  line-height: 1.8;
  color: var(--color-text);
}

/* ── VOICES ── */
.voices {
  background: var(--color-primary-050);
  padding: var(--section-py) var(--px);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: clamp(40px, 6vw, 64px);
}
.voices__list {
  display: flex;
  flex-direction: column;
  gap: 20px;
  width: min(var(--max-content), 100%);
}
.voice {
  background: white;
  border-radius: 20px;
  padding: clamp(24px, 3.5vw, 36px);
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.voice__meta {
  font-weight: 700;
  font-size: 12px;
  color: var(--color-primary);
  letter-spacing: 0.04em;
}
.voice__meta span {
  font-weight: 400;
  color: var(--color-grey-400);
  margin-left: 6px;
}
.voice__text {
  font-weight: 500;
  font-size: clamp(13px, 1.3vw, 15px);
  line-height: 1.9;
  color: var(--color-dark);
}

/* ── HOW TO START ── */
.howto {
  background: white;
  padding: var(--section-py) var(--px);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: clamp(40px, 6vw, 64px);
}
.howto__layout {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  width: 100%;
}
.howto__tabs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  column-gap: 24px;
  row-gap: 12px;
  width: min(var(--max-content), 100%);
}
.howto__group {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.howto__group-label {
  font-weight: 700;
  font-size: clamp(14px, 1.5vw, 17px);
  color: var(--color-primary);
  letter-spacing: 0.04em;
  text-align: center;
  background: var(--color-primary-150);
  border-radius: 240px;
  padding: 8px 24px;
  margin: 0;
}
.howto__step {
  background: var(--color-primary-050);
  border-radius: 16px;
  padding: clamp(16px, 2vw, 24px);
  display: flex;
  gap: 16px;
  align-items: flex-start;
}
.howto__step-num {
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--color-primary);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 14px;
  font-family: 'Plus Jakarta Sans', sans-serif;
}
.howto__step-body {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.howto__step-title {
  font-weight: 700;
  font-size: clamp(13px, 1.3vw, 15px);
  color: var(--color-dark);
  margin: 0;
}
.howto__step-desc {
  font-weight: 500;
  font-size: clamp(12px, 1.1vw, 13px);
  line-height: 1.7;
  color: var(--color-text);
}
.howto__note {
  font-size: clamp(12px, 1.1vw, 13px);
  color: var(--color-grey-400);
  width: min(var(--max-content), 100%);
  margin: 0;
}
@media (max-width: 640px) {
  .howto__tabs {
    grid-template-columns: 1fr;
  }
}

/* ── ROADMAP ── */
.roadmap {
  background: var(--color-primary-050);
  padding: var(--section-py) var(--px);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: clamp(40px, 6vw, 64px);
}
.roadmap__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  width: min(var(--max-content), 100%);
}
.roadmap__item {
  background: white;
  border-radius: 16px;
  padding: clamp(20px, 2.5vw, 28px);
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.roadmap__item-title {
  font-weight: 700;
  font-size: clamp(14px, 1.5vw, 16px);
  color: var(--color-dark);
  margin: 0;
}
.roadmap__item-desc {
  font-weight: 500;
  font-size: clamp(12px, 1.2vw, 14px);
  line-height: 1.7;
  color: var(--color-text);
}
.roadmap__vision {
  background: var(--color-primary);
  border-radius: 20px;
  padding: clamp(28px, 4vw, 44px);
  width: min(var(--max-content), 100%);
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.roadmap__vision-title {
  font-weight: 700;
  font-size: clamp(18px, 2.2vw, 26px);
  color: white;
  line-height: 1.5;
  margin: 0;
}
.roadmap__vision-body {
  font-weight: 500;
  font-size: clamp(13px, 1.3vw, 16px);
  line-height: 1.9;
  color: rgba(255, 255, 255, 0.8);
}
@media (max-width: 600px) {
  .roadmap__grid {
    grid-template-columns: 1fr;
  }
}

/* ── CTA ── */
.cta-section {
  background: white;
  padding: var(--section-py) var(--px);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: clamp(20px, 3vw, 32px);
  text-align: center;
}
.cta-section__heading {
  font-weight: 700;
  font-size: clamp(24px, 3.5vw, 46px);
  color: var(--color-dark);
  line-height: 1.4;
}
.cta-section__lead {
  font-weight: 500;
  font-size: clamp(14px, 1.4vw, 17px);
  color: var(--color-text);
  line-height: 1.9;
  max-width: 560px;
}
.cta-section__row {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: center;
  margin-top: 8px;
}
.cta-section__note {
  font-size: 13px;
  color: var(--color-grey-400);
  font-weight: 500;
}

/* ── FOOTER ── */
.site-footer {
  background: var(--color-yellow);
  padding: clamp(40px, 6vw, 80px) var(--px);
  display: flex;
  flex-direction: column;
  gap: 40px;
}
.site-footer__logo {
  width: clamp(140px, 18vw, 200px);
  height: auto;
  aspect-ratio: 895/129;
  display: block;
  flex-shrink: 0;
}
.site-footer__links {
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.site-footer__link {
  font-weight: 500;
  font-size: clamp(14px, 1.3vw, 17px);
  color: var(--color-text);
  text-decoration: none;
  line-height: 1.6;
}
.site-footer__link:hover {
  text-decoration: underline;
}
.site-footer__copy {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: clamp(13px, 1.2vw, 15px);
  color: var(--color-text);
}

/* ── Floating CTA bar ── */
.floating-cta-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 190;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(8px);
  border-top: 1px solid var(--color-grey-200);
  display: flex;
  align-items: stretch;
  justify-content: center;
  flex-wrap: nowrap;
  gap: clamp(6px, 1vw, 12px);
  padding: 16px clamp(12px, 3vw, 32px);
  transform: translateY(100%);
  transition: transform 0.3s ease;
}
.floating-cta-bar.is-visible {
  transform: translateY(0);
}
.floating-cta-bar__text {
  font-size: clamp(12px, 1.1vw, 14px);
  color: var(--color-text);
  font-weight: 500;
  white-space: nowrap;
}
.floating-cta-bar__btn {
  font-size: clamp(13px, 1.4vw, 16px);
  padding: 12px clamp(16px, 3vw, 48px);
  white-space: nowrap;
}
.back-to-top {
  position: fixed;
  bottom: 52px;
  right: 28px;
  z-index: 200;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--color-primary);
  color: white;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
  opacity: 0;
  pointer-events: none;
  transition:
    opacity 0.25s,
    transform 0.25s;
}
.back-to-top.is-visible {
  opacity: 1;
  pointer-events: auto;
}
.back-to-top:hover {
  transform: translateY(-3px);
}
.back-to-top svg {
  width: 20px;
  height: 20px;
  fill: white;
}
@media (max-width: 480px) {
  .floating-cta-bar__text {
    display: none;
  }
}

/* ── SECTION ICON ── */
.section-eyebrow-row {
  display: flex;
  align-items: center;
  gap: 16px;
  width: 100%;
}
.section-eyebrow-row::before,
.section-eyebrow-row::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--color-grey-200);
}
.section-icon {
  width: clamp(32px, 4vw, 48px);
  height: auto;
  display: block;
  flex-shrink: 0;
}

/* ── TARGET USERS ── */
.target-users {
  width: min(var(--max-content), 100%);
  background: var(--color-primary-050);
  border-radius: 20px;
  padding: clamp(24px, 3.5vw, 40px);
}
.target-users__heading {
  font-weight: 700;
  font-size: clamp(14px, 1.5vw, 17px);
  color: var(--color-dark);
  margin-bottom: 16px;
  text-align: center;
}
.target-users__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
.target-users__item {
  background: white;
  border-radius: 12px;
  padding: 14px 16px;
  font-weight: 500;
  font-size: clamp(13px, 1.2vw, 14px);
  color: var(--color-text);
  line-height: 1.7;
  text-align: center;
}

/* ── VOICES STAT ── */
.voices__stat {
  display: flex;
  align-items: baseline;
  gap: 6px;
}
.voices__stat-label {
  font-size: clamp(14px, 1.4vw, 16px);
  font-weight: 700;
  color: var(--color-dark);
  letter-spacing: 0.04em;
  font-family: 'M PLUS 1', sans-serif;
}
.voices__stat-num {
  font-size: clamp(36px, 4.5vw, 52px);
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1;
  font-family: 'Plus Jakarta Sans', sans-serif;
}
.voices__stat-num span {
  font-size: 0.45em;
  font-weight: 600;
}

/* ── FLOATING BAR EXTRAS ── */
.floating-cta-bar__divider {
  width: 1px;
  height: 32px;
  background: var(--color-dark);
  flex-shrink: 0;
  align-self: center;
}
.floating-cta-bar__app-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0;
  padding-top: 5px;
  padding-bottom: 5px;
}
.floating-cta-bar__app-sub {
  font-size: 10px;
  color: var(--color-text);
  font-weight: 500;
  line-height: 1;
}
.floating-cta-bar__app-main {
  font-size: clamp(12px, 1.2vw, 14px);
}

/* ── MISC ── */
.feat-biz__privacy {
  width: min(var(--max-content), 100%);
  font-size: clamp(12px, 1.1vw, 13px);
  color: var(--color-grey-400);
  text-align: left;
  line-height: 1.8;
  margin-top: calc(clamp(40px, 6vw, 64px) * -0.6);
}
.feat-user__dl-btn {
  padding: clamp(8px, 1.1vw, 11px) clamp(32px, 4vw, 52px);
  justify-content: center;
}
.why__credential {
  font-size: clamp(13px, 1.2vw, 14px);
  color: var(--color-text);
  line-height: 1.8;
  text-align: center;
  border: 1px solid var(--color-grey-400);
  border-radius: 12px;
  padding: 16px 28px;
  width: min(var(--max-content), 100%);
  margin: 0;
}
.why__body {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
  width: 100%;
}
.why__section-lead {
  color: var(--color-text);
  max-width: min(var(--max-content), 100%);
  text-wrap: unset;
}
.problem__card--result .problem__card-title {
  font-size: clamp(28px, 3.2vw, 40px);
}
.problem__card--result .problem__card-body {
  font-size: clamp(14px, 1.4vw, 17px);
}
.roadmap__item .tag {
  margin-bottom: 4px;
}
.system__center-label {
  font-weight: 700;
  font-size: clamp(13px, 1.3vw, 15px);
  color: var(--color-dark);
}

/* ── FADE-IN ── */
.fade-in {
  opacity: 0;
  transform: translateY(48px);
  transition:
    opacity 0.8s cubic-bezier(0.22, 0.61, 0.36, 1),
    transform 0.8s cubic-bezier(0.22, 0.61, 0.36, 1);
}
.fade-in--strong {
  opacity: 0;
  transform: translateY(80px) scale(0.96);
  transition:
    opacity 1s cubic-bezier(0.16, 1, 0.3, 1),
    transform 1s cubic-bezier(0.16, 1, 0.3, 1);
}
.fade-in--strong.is-visible {
  opacity: 1;
  transform: translateY(0) scale(1);
}
.fade-in.is-visible {
  opacity: 1;
  transform: translateY(0);
}
@media (prefers-reduced-motion: reduce) {
  .fade-in,
  .fade-in--strong {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* ── RESPONSIVE ── */
@media (max-width: 640px) {
  /* problem h2 nowrap対応 */
  .problem .section-h2 {
    font-size: 4vw;
  }

  /* callout-band */
  .callout-band__inner p {
    white-space: normal !important;
  }

  /* feat-user */
  .feat-user__bottom {
    margin-top: 24px;
  }

  /* target-users */
  .target-users__grid {
    grid-template-columns: 1fr;
  }

  /* cta buttons */
  .btn-primary,
  .btn-outline {
    width: 100%;
  }
  .hero__cta-row .btn-primary,
  .hero__cta-row .btn-outline,
  .cta-section__row .btn-primary,
  .cta-section__row .btn-outline,
  .floating-cta-bar__app-btn {
    width: auto;
    align-self: auto;
  }
  .hero__cta-row .floating-cta-bar__app-btn {
    align-self: stretch;
  }
  .hero__cta-row .floating-cta-bar__divider {
    display: none;
  }
}

@media (max-width: 480px) {
  .floating-cta-bar__divider {
    display: none;
  }
  .floating-cta-bar {
    gap: 8px;
    padding: 12px 16px;
  }
  .floating-cta-bar__btn {
    padding: 10px 16px;
    font-size: 13px;
  }
  .floating-cta-bar__app-btn {
    display: none;
  }
}

/* ==================== RADIO PLAYER ==================== */
.radio-player {
  width: 100%;
  background: white;
  border: 1.5px solid var(--color-primary-200);
  border-radius: 16px;
  padding: 16px 60px;
  display: flex;
  flex-direction: column;
}
.rp-wrapper {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 10px;
}
.rp-caption {
  font-size: 13px;
  font-weight: 700;
  color: var(--color-primary);
  text-align: center;
  letter-spacing: 0.3px;
}
.rp-wave-svg {
  width: 100%;
  max-width: 274px;
  height: auto;
  display: block;
  margin: 0 auto;
  cursor: pointer;
  touch-action: none;
}
.rp-times {
  display: flex;
  justify-content: space-between;
  font-size: 12px;
  color: var(--color-grey-400);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.3px;
  max-width: 274px;
  width: 100%;
  margin: 0 auto;
}
.rp-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 32px;
}
.rp-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  flex-shrink: 0;
  transition: opacity 0.15s;
}
.rp-btn:hover {
  opacity: 0.8;
}
.rp-btn-sub img {
  width: 56px;
  height: 56px;
  display: block;
}
.rp-btn-playpause {
  position: relative;
  width: 98px;
  height: 98px;
  overflow: hidden;
  border-radius: 50%;
  box-shadow:
    0 10px 15px rgba(0, 0, 0, 0.1),
    0 4px 6px rgba(0, 0, 0, 0.08);
}
.rp-btn-playpause img {
  position: absolute;
  width: 126px;
  height: 126px;
  max-width: none;
  top: -4px;
  left: -14px;
}