@charset "UTF-8";
/* =========================================================
   style.css｜採用ブランディングLP
   ブレイクポイント: 768px / 1024px(モバイルファースト・基準375px)
   設計: BEM / セクションスコープ / トークンは :root に集約
   ◆ デザイン変更は原則 :root のトークンだけを触る
   ========================================================= */

:root {
  /* color */
  --color-accent: #0F766E;
  --color-accent-dark: #0B5C55;
  --color-accent-soft: #E6F3F0;
  --color-accent-deep: #0B3B36;
  --color-cta: #F59E0B;
  --color-cta-dark: #D98305;
  --color-text: #243B39;
  --color-text-sub: #5C6B69;
  --color-bg: #FFFFFF;
  --color-bg-sub: #F4F8F7;
  --color-line: #DDE7E5;
  /* typography */
  --font-base: "Noto Sans JP", sans-serif;
  --weight-heading: 900;
  /* shape */
  --radius: 16px;
  --radius-sm: 10px;
  --radius-btn: 999px;
  --shadow: 0 10px 30px rgba(15, 118, 110, .10);
  --shadow-sm: 0 4px 14px rgba(15, 118, 110, .08);
  /* layout */
  --space: 8px;
  --container: 1100px;
}

/* ===== Reset ===== */
*, *::before, *::after { box-sizing: border-box; }
body, h1, h2, h3, p, ul, ol, dl, dd, figure { margin: 0; }
ul, ol { padding: 0; list-style: none; }
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; background: none; border: none; cursor: pointer; }
mark { background: none; }

html { scroll-behavior: smooth; }
body {
  font-family: var(--font-base);
  font-size: 1rem;
  line-height: 1.9;
  color: var(--color-text);
  background: var(--color-bg);
  overflow-wrap: break-word;
}

/* ===== utilities ===== */
.container { max-width: var(--container); margin-inline: auto; padding-inline: 20px; }
@media (min-width: 1024px) { .container { padding-inline: 40px; } }
.u-pc-only { display: none; }
@media (min-width: 768px) { .u-pc-only { display: inline; } .u-sp-only { display: none; } }

.section { padding-block: calc(var(--space) * 8); }
@media (min-width: 768px) { .section { padding-block: calc(var(--space) * 12); } }
[id] { scroll-margin-top: 76px; }

.section__title {
  font-size: clamp(1.375rem, 2.6vw + .6rem, 2rem);
  font-weight: var(--weight-heading);
  text-align: center;
  line-height: 1.5;
  margin-bottom: calc(var(--space) * 5);
}
.section__title--light { color: #fff; }
.section__lead {
  text-align: center;
  color: var(--color-text-sub);
  font-size: .9375rem;
  margin-top: calc(var(--space) * -3);
  margin-bottom: calc(var(--space) * 5);
}

/* ===== buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 48px;
  padding: 12px 30px;
  border-radius: var(--radius-btn);
  font-weight: 700;
  font-size: .9375rem;
  transition: transform .2s, background-color .2s, box-shadow .2s;
}
.btn--cta {
  background: var(--color-cta);
  color: #fff;
  box-shadow: 0 6px 16px rgba(245, 158, 11, .3);
}
.btn--cta:hover { background: var(--color-cta-dark); transform: translateY(-2px); }
.btn--cta .btn__icon { filter: brightness(0) invert(1); }
.btn--outline { border: 2px solid var(--color-accent); color: var(--color-accent); background: #fff; }
.btn--outline:hover { background: var(--color-accent); color: #fff; }
.btn--outline-light { border: 2px solid rgba(255,255,255,.75); color: #fff; }
.btn--outline-light:hover { background: rgba(255,255,255,.14); }
.btn--lg { min-height: 56px; padding: 14px 34px; font-size: 1rem; }
.btn--sm { min-height: 42px; padding: 8px 22px; font-size: .875rem; }
.btn:focus-visible { outline: 3px solid var(--color-cta); outline-offset: 3px; }

/* ===== header ===== */
.header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-line);
}
.header__inner {
  max-width: 1240px; margin-inline: auto;
  padding-inline: 20px;
  display: flex; align-items: center; justify-content: space-between;
  min-height: 62px;
}
.header__logo { display: flex; flex-direction: column; line-height: 1.25; }
.header__logo-main { font-weight: var(--weight-heading); font-size: 1.0625rem; color: var(--color-accent); }
.header__logo-sub { font-size: .625rem; color: var(--color-text-sub); letter-spacing: .12em; }
.header__toggle { position: relative; width: 44px; height: 44px; }
.header__toggle span {
  position: absolute; left: 11px; width: 22px; height: 2px;
  background: var(--color-accent); transition: transform .25s, opacity .25s;
}
.header__toggle span:nth-child(1) { top: 15px; }
.header__toggle span:nth-child(2) { top: 21px; }
.header__toggle span:nth-child(3) { top: 27px; }
.header__toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.header__toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.header__toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }
.header__nav {
  position: fixed; inset: 62px 0 auto 0;
  background: #fff;
  border-bottom: 1px solid var(--color-line);
  padding: 12px 20px 22px;
  transform: translateY(-130%);
  transition: transform .3s;
}
.header__nav.is-open { transform: translateY(0); }
.header__list { display: flex; flex-direction: column; gap: 2px; }
.header__list a { display: block; padding: 12px 8px; font-weight: 500; font-size: .9375rem; }
.header__cta { color: var(--color-accent); font-weight: 700; }
@media (min-width: 1024px) {
  .header__toggle { display: none; }
  .header__nav { position: static; transform: none; padding: 0; border: none; background: none; }
  .header__list { flex-direction: row; align-items: center; gap: 4px; }
  .header__list a { padding: 8px 14px; }
  .header__cta {
    background: var(--color-cta); color: #fff !important;
    border-radius: var(--radius-btn); padding: 10px 22px !important; margin-left: 10px;
  }
}

/* ===== hero ===== */
.hero {
  position: relative;
  background: linear-gradient(135deg, var(--color-accent) 0%, #14867C 55%, #1AA093 100%);
  color: #fff;
  padding-block: calc(var(--space) * 6) calc(var(--space) * 8);
  overflow: hidden;
}
.hero::after {
  content: ""; position: absolute; inset: auto 0 -1px 0; height: 40px;
  background: var(--color-bg);
  clip-path: polygon(0 100%, 100% 0, 100% 100%);
}
.hero__inner {
  position: relative; z-index: 1;
  max-width: var(--container); margin-inline: auto; padding-inline: 20px;
  display: grid; gap: calc(var(--space) * 4);
}
.hero__eyebrow {
  display: inline-block;
  background: rgba(255,255,255,.16);
  border: 1px solid rgba(255,255,255,.35);
  border-radius: var(--radius-btn);
  font-size: .75rem; font-weight: 700;
  padding: 5px 16px;
  margin-bottom: calc(var(--space) * 2);
}
.hero__title { font-size: clamp(1.75rem, 3.6vw + .55rem, 2.625rem); font-weight: var(--weight-heading); line-height: 1.45; }
.hero__lead { margin-top: calc(var(--space) * 2); font-size: .9375rem; color: rgba(255,255,255,.9); line-height: 1.9; }
.hero__actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: calc(var(--space) * 4); }
.hero__note { margin-top: calc(var(--space) * 2); font-size: .8125rem; color: rgba(255,255,255,.85); }
.hero__visual { position: relative; }
.hero__visual img { margin-inline: auto; max-height: 360px; object-fit: contain; }
.hero__chip {
  position: absolute;
  display: inline-flex; align-items: center; gap: 6px;
  background: #fff; color: var(--color-accent);
  font-size: .75rem; font-weight: 700;
  padding: 6px 14px; border-radius: var(--radius-btn);
  box-shadow: 0 6px 18px rgba(0,0,0,.12);
}
.hero__chip img { filter: none; }
.hero__chip--1 { top: 6%; right: 2%; }
.hero__chip--2 { top: 44%; right: 1%; }
.hero__chip--3 { bottom: 10%; left: 2%; }
@media (min-width: 768px) {
  .hero { padding-block: calc(var(--space) * 9) calc(var(--space) * 11); }
  .hero__inner { grid-template-columns: 1.12fr 1fr; align-items: center; gap: calc(var(--space) * 5); }
}

/* ===== problem ===== */
.problem { padding-block: calc(var(--space) * 6); background: var(--color-bg); }
.problem__head {
  text-align: center; font-weight: 700; font-size: 1.0625rem;
  margin-bottom: calc(var(--space) * 4);
}
.problem__row { display: grid; gap: calc(var(--space) * 3); }
.problem__avatar { width: 130px; margin-inline: auto; }
.problem__list { display: grid; gap: calc(var(--space) * 2); }
.problem__item {
  position: relative;
  background: var(--color-bg-sub);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-sm);
  padding: 16px 20px;
  font-size: .9375rem; font-weight: 500;
  line-height: 1.7;
}
.problem__item br { display: none; }
@media (min-width: 768px) {
  .problem__row { grid-template-columns: 150px 1fr; align-items: center; }
  .problem__list { grid-template-columns: repeat(3, 1fr); }
  .problem__item { text-align: center; padding: 18px 16px; }
  .problem__item br { display: inline; }
  .problem__item::before {
    content: ""; position: absolute; left: -9px; top: 50%;
    width: 14px; height: 14px; transform: translateY(-50%) rotate(45deg);
    background: var(--color-bg-sub);
    border-left: 1px solid var(--color-line); border-bottom: 1px solid var(--color-line);
  }
  .problem__item:not(:first-child)::before { display: none; }
}

/* ===== why ===== */
.why { background: var(--color-bg-sub); }
.why__list { display: grid; gap: calc(var(--space) * 2); }
.why__item {
  display: flex; align-items: flex-start; gap: 16px;
  background: #fff;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-sm);
  padding: 20px 22px;
}
.why__num {
  flex-shrink: 0;
  font-size: 1.125rem; font-weight: var(--weight-heading);
  color: var(--color-accent);
  line-height: 1.6;
}
.why__text { font-size: .9375rem; line-height: 1.8; }
.why__conclusion {
  text-align: center;
  margin-top: calc(var(--space) * 5);
  font-size: clamp(1.0625rem, 1.6vw + .6rem, 1.375rem);
  font-weight: var(--weight-heading);
}
.why__conclusion mark {
  color: var(--color-accent);
  border-bottom: 4px solid var(--color-cta);
  padding-bottom: 2px;
}
@media (min-width: 768px) {
  .why__list { grid-template-columns: repeat(3, 1fr); }
  .why__item { flex-direction: column; gap: 8px; }
}

/* ===== merit ===== */
.merit__box {
  display: grid; gap: calc(var(--space) * 4);
  background: var(--color-bg-sub);
  border-radius: var(--radius);
  padding: calc(var(--space) * 4) calc(var(--space) * 3);
}
.merit__heading {
  font-size: 1.0625rem; font-weight: 700;
  padding-left: 12px;
  border-left: 4px solid var(--color-accent);
  margin-bottom: calc(var(--space) * 2);
}
.merit__list { display: grid; gap: 10px; }
.merit__list li { display: flex; align-items: center; gap: 10px; font-size: .9375rem; font-weight: 500; }
.merit__list img { flex-shrink: 0; }
.merit__visual { background: #fff; border-radius: var(--radius-sm); padding: 24px; }
.merit__visual img { max-height: 260px; object-fit: contain; margin-inline: auto; }
@media (min-width: 768px) {
  .merit__box { grid-template-columns: 1fr 1.15fr; align-items: center; padding: calc(var(--space) * 6); }
}

/* ===== cta-band ===== */
.cta-band {
  background: var(--color-accent-soft);
  padding-block: calc(var(--space) * 5);
  text-align: center;
}
.cta-band__label { font-size: .875rem; font-weight: 700; color: var(--color-accent); margin-bottom: 14px; }

/* ===== strength ===== */
.strength__list { display: grid; gap: calc(var(--space) * 3); }
.strength__card {
  display: grid; gap: calc(var(--space) * 2);
  background: #fff;
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  padding: calc(var(--space) * 3);
}
.strength__visual { background: var(--color-bg-sub); border-radius: var(--radius-sm); padding: 22px; }
.strength__visual img { height: 190px; object-fit: contain; margin-inline: auto; }
.strength__badge {
  display: inline-block;
  background: var(--color-accent); color: #fff;
  font-size: .6875rem; font-weight: 700; letter-spacing: .08em;
  padding: 4px 14px; border-radius: var(--radius-btn);
}
.strength__heading { font-size: 1.125rem; font-weight: 700; margin-block: 10px 8px; color: var(--color-accent); }
.strength__text { font-size: .9375rem; color: var(--color-text-sub); }
.strength__stats { display: flex; gap: 22px; margin-top: calc(var(--space) * 2); }
.strength__stats li { font-size: .75rem; color: var(--color-text-sub); }
.strength__stat-num { display: block; font-size: 1.75rem; font-weight: var(--weight-heading); color: var(--color-cta); line-height: 1.2; }
.strength__stat-num small { font-size: .875rem; margin-left: 2px; }
@media (min-width: 768px) {
  .strength__card { grid-template-columns: .9fr 1.1fr; align-items: center; gap: calc(var(--space) * 4); padding: calc(var(--space) * 4); }
  .strength__card--rev .strength__visual { order: 2; }
}

/* ===== plan ===== */
.plan { background: linear-gradient(135deg, var(--color-accent) 0%, #14867C 100%); }
.plan__grid { display: grid; gap: calc(var(--space) * 3); }
.plan__card {
  background: #fff;
  border-radius: var(--radius);
  padding: calc(var(--space) * 3.5);
  text-align: center;
}
.plan__heading { font-size: 1.0625rem; font-weight: 700; color: var(--color-accent); line-height: 1.6; }
.plan__heading span { display: block; font-size: .8125rem; color: var(--color-cta); margin-bottom: 4px; }
.plan__text { font-size: .875rem; color: var(--color-text-sub); margin-block: 12px 18px; text-align: left; }
.plan__note { color: #fff; text-align: center; margin-top: calc(var(--space) * 4); font-weight: 700; font-size: .9375rem; }
@media (min-width: 768px) {
  .plan__grid { grid-template-columns: repeat(2, 1fr); }
}

/* ===== flow ===== */
.flow__steps { display: grid; gap: calc(var(--space) * 2); }
.flow__step {
  position: relative;
  background: var(--color-bg-sub);
  border-radius: var(--radius-sm);
  padding: 20px 16px;
  text-align: center;
}
.flow__num { font-size: .6875rem; font-weight: 700; color: var(--color-accent); letter-spacing: .1em; }
.flow__icon {
  width: 56px; height: 56px; margin: 10px auto 8px;
  background: #fff; border-radius: 50%;
  display: grid; place-items: center;
  box-shadow: var(--shadow-sm);
}
.flow__heading { font-size: .9375rem; font-weight: 700; }
.flow__note { text-align: center; font-size: .875rem; color: var(--color-text-sub); margin-top: calc(var(--space) * 4); }
.flow__action { text-align: center; margin-top: calc(var(--space) * 3); }
@media (min-width: 768px) {
  .flow__steps { grid-template-columns: repeat(4, 1fr); gap: calc(var(--space) * 3); }
  .flow__step:not(:last-child)::after {
    content: ""; position: absolute; top: 50%; right: calc(var(--space) * -2.6);
    width: 12px; height: 12px;
    border-top: 3px solid var(--color-accent); border-right: 3px solid var(--color-accent);
    transform: translateY(-50%) rotate(45deg);
  }
}

/* ===== download ===== */
.download { background: var(--color-bg-sub); }
.download__grid { display: grid; gap: calc(var(--space) * 3); }
.download__card {
  background: #fff;
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  padding: calc(var(--space) * 2.5);
  text-align: center;
}
.download__thumb { background: var(--color-bg-sub); border-radius: var(--radius-sm); padding: 18px 22px; margin-bottom: 14px; }
.download__thumb img { height: 120px; object-fit: contain; margin-inline: auto; }
.download__heading { font-size: 1rem; font-weight: 700; line-height: 1.6; }
.download__text { font-size: .8125rem; color: var(--color-text-sub); margin-block: 8px 14px; }
@media (min-width: 768px) {
  .download__grid { grid-template-columns: repeat(3, 1fr); }
}

/* ===== column ===== */
.column__grid { display: grid; gap: calc(var(--space) * 3); }
.column__card { background: #fff; }
.column__thumb {
  aspect-ratio: 16 / 9;
  border-radius: var(--radius-sm);
  display: grid; place-items: center;
  color: #fff; font-weight: var(--weight-heading); font-size: 1.125rem;
  text-align: center; padding: 12px;
  margin-bottom: 12px;
}
.column__thumb--a { background: linear-gradient(135deg, #0F766E, #17998C); }
.column__thumb--b { background: linear-gradient(135deg, #14867C, #4FB3A5); }
.column__thumb--c { background: linear-gradient(135deg, #0B5C55, #12857A); }
.column__meta { font-size: .6875rem; color: var(--color-accent); font-weight: 700; }
.column__heading { font-size: .9375rem; font-weight: 700; line-height: 1.7; margin-block: 4px 6px; }
.column__date { font-size: .75rem; color: var(--color-text-sub); }
.column__action { text-align: center; margin-top: calc(var(--space) * 4); }
@media (min-width: 768px) {
  .column__grid { grid-template-columns: repeat(3, 1fr); }
}

/* ===== cta ===== */
.cta {
  background: linear-gradient(135deg, var(--color-accent-deep) 0%, var(--color-accent) 100%);
  color: #fff;
  padding-block: calc(var(--space) * 9);
  text-align: center;
}
.cta__title { font-size: clamp(1.375rem, 2.6vw + .6rem, 2rem); font-weight: var(--weight-heading); }
.cta__lead { margin-top: calc(var(--space) * 2); font-size: .9375rem; color: rgba(255,255,255,.88); }
.cta__actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; margin-top: calc(var(--space) * 4); }
.cta__note { font-size: .75rem; color: rgba(255,255,255,.7); margin-top: calc(var(--space) * 3); }

/* ===== footer ===== */
.footer { background: var(--color-bg-sub); padding-block: calc(var(--space) * 6); border-top: 1px solid var(--color-line); }
.footer__nav { display: grid; gap: 2px; margin-bottom: calc(var(--space) * 4); }
.footer__nav a { display: block; padding: 10px 0; font-size: .875rem; border-bottom: 1px solid var(--color-line); }
.footer__brand { text-align: center; margin-bottom: calc(var(--space) * 2); }
.footer__logo { display: block; font-weight: var(--weight-heading); font-size: 1.125rem; color: var(--color-accent); }
.footer__logo-sub { font-size: .625rem; letter-spacing: .16em; color: var(--color-text-sub); }
.footer__copy { text-align: center; font-size: .75rem; color: var(--color-text-sub); }
.footer__note { text-align: center; font-size: .6875rem; color: var(--color-text-sub); opacity: .8; margin-top: 6px; }
@media (min-width: 768px) {
  .footer__nav { grid-template-columns: repeat(3, 1fr); gap: 0 32px; }
}

/* ===== motion ===== */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; animation: none !important; }
}