/* ========== リセット・ベース ========== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --primary:      #1A3557;
  --primary-dark: #0f2236;
  --accent:       #C49A27;
  --accent-dark:  #a07d1e;
  --bg-light:     #F5F6F8;
  --text:         #2D2D2D;
  --text-light:   #666;
  --white:        #fff;
  --border:       #e0e0e0;
  --shadow:       0 4px 20px rgba(0,0,0,.08);
  --radius:       8px;
  --serif:        'Noto Serif JP', serif;
  --sans:         'Noto Sans JP', sans-serif;
  --header-h:     72px;
}

html { scroll-behavior: smooth; font-size: 16px; }
body { font-family: var(--sans); color: var(--text); line-height: 1.7; }
img  { max-width: 100%; height: auto; display: block; }
a    { text-decoration: none; color: inherit; }
ul   { list-style: none; }

/* ========== 共通 ========== */
.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

.section      { padding: 88px 0; }
.section--bg  { background: var(--bg-light); }

.section__title {
  font-family: var(--serif);
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 700;
  color: var(--primary);
  text-align: center;
  margin-bottom: 16px;
}
.section__title--white { color: var(--white); }

.section__desc {
  text-align: center;
  color: var(--text-light);
  margin-bottom: 52px;
  font-size: .95rem;
}
.section__desc--white { color: rgba(255,255,255,.8); }

.accent { color: var(--accent); }

/* ========== ボタン ========== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: 4px;
  font-family: var(--sans);
  font-size: .9rem;
  font-weight: 700;
  cursor: pointer;
  transition: all .2s;
  border: 2px solid transparent;
  white-space: nowrap;
}
.btn--accent {
  background: var(--accent);
  color: var(--white);
  border-color: var(--accent);
}
.btn--accent:hover {
  background: var(--accent-dark);
  border-color: var(--accent-dark);
  transform: translateY(-1px);
}
.btn--primary {
  background: var(--primary);
  color: var(--white);
  border-color: var(--primary);
}
.btn--primary:hover {
  background: #122845;
  border-color: #122845;
}
.btn--outline {
  background: transparent;
  color: var(--white);
  border-color: var(--white);
}
.btn--outline:hover {
  background: var(--white);
  color: var(--primary);
}
.btn--lg   { padding: 16px 36px; font-size: 1rem; }
.btn--full { width: 100%; justify-content: center; }

/* ========== ヘッダー ========== */
.header {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--header-h);
  background: var(--white);
  box-shadow: 0 2px 12px rgba(0,0,0,.07);
  z-index: 100;
  transition: box-shadow .3s;
}
.header__inner {
  max-width: 1200px;
  margin: 0 auto;
  height: 100%;
  padding: 0 24px;
  display: flex;
  align-items: center;
  gap: 32px;
}
.header__logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--serif);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--primary);
  flex-shrink: 0;
}
.header__logo-icon {
  color: var(--accent);
  font-size: 1.3rem;
}
.header__nav { margin-left: auto; }
.header__nav-list {
  display: flex;
  gap: 28px;
}
.header__nav-list a {
  font-size: .88rem;
  color: var(--text);
  font-weight: 500;
  transition: color .2s;
  position: relative;
}
.header__nav-list a::after {
  content: '';
  position: absolute;
  bottom: -3px; left: 0; right: 0;
  height: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transition: transform .2s;
}
.header__nav-list a:hover { color: var(--accent); }
.header__nav-list a:hover::after { transform: scaleX(1); }

.header__cta { margin-left: 16px; flex-shrink: 0; }

.header__hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
  margin-left: auto;
}
.header__hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--primary);
  transition: all .3s;
  transform-origin: center;
}
.header__hamburger.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.header__hamburger.is-open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.header__hamburger.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* モバイルナビ */
.mobile-nav {
  position: fixed;
  top: var(--header-h);
  left: 0; right: 0;
  background: var(--primary);
  z-index: 99;
  transform: translateY(-110%);
  opacity: 0;
  transition: transform .35s ease, opacity .25s ease;
  pointer-events: none;
}
.mobile-nav.is-open {
  transform: translateY(0);
  opacity: 1;
  pointer-events: auto;
}
.mobile-nav__link {
  display: block;
  padding: 16px 24px;
  color: rgba(255,255,255,.85);
  font-size: .95rem;
  border-bottom: 1px solid rgba(255,255,255,.1);
  transition: color .2s, background .2s;
}
.mobile-nav__link:hover { color: var(--white); background: rgba(255,255,255,.08); }
.mobile-nav__link--cta {
  background: var(--accent);
  color: var(--white) !important;
  text-align: center;
  font-weight: 700;
  border: none;
}
.mobile-nav__link--cta:hover { background: var(--accent-dark); }

/* ========== ファーストビュー ========== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: var(--header-h);
  overflow: hidden;
}
.hero__bg {
  position: absolute;
  inset: 0;
}
.hero__bg-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 20%;
}
.hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(26, 53, 87, .92) 0%,
    rgba(26, 53, 87, .75) 60%,
    rgba(26, 53, 87, .65) 100%
  );
}
.hero__inner {
  position: relative;
  z-index: 1;
  max-width: 1100px;
  margin: 0 auto;
  padding: 80px 24px;
}
.hero__subtitle {
  font-size: .82rem;
  font-weight: 500;
  color: var(--accent);
  letter-spacing: .12em;
  margin-bottom: 20px;
  text-transform: uppercase;
}
.hero__title {
  font-family: var(--serif);
  font-size: clamp(2.6rem, 6vw, 4.8rem);
  font-weight: 700;
  color: var(--white);
  line-height: 1.25;
  margin-bottom: 28px;
}
.hero__desc {
  font-size: clamp(.95rem, 2vw, 1.1rem);
  color: rgba(255,255,255,.85);
  margin-bottom: 44px;
  line-height: 2;
}
.hero__btns {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

/* ========== 実績数字帯 ========== */
.numbers {
  background: var(--primary);
  padding: 52px 0;
}
.numbers__inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  text-align: center;
}
.numbers__item {
  padding: 8px 0;
  border-right: 1px solid rgba(255,255,255,.15);
}
.numbers__item:last-child { border-right: none; }
.numbers__value {
  display: block;
  font-family: var(--serif);
  font-size: clamp(2rem, 3.5vw, 2.8rem);
  font-weight: 700;
  color: var(--accent);
  line-height: 1.1;
}
.numbers__unit { font-size: 1.1rem; }
.numbers__label {
  display: block;
  font-size: .78rem;
  color: rgba(255,255,255,.65);
  margin-top: 10px;
  letter-spacing: .05em;
}

/* ========== お悩み ========== */
.problems__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-bottom: 52px;
}
.problems__item {
  background: var(--white);
  border: 2px solid var(--border);
  border-radius: var(--radius);
  padding: 36px 20px;
  text-align: center;
  font-size: .9rem;
  line-height: 1.7;
  transition: border-color .2s, box-shadow .2s, transform .2s;
}
.problems__item:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow);
  transform: translateY(-3px);
}
.problems__icon {
  font-size: 2rem;
  color: var(--accent);
  margin-bottom: 16px;
  display: block;
}
.problems__lead {
  text-align: center;
  font-size: 1.1rem;
  font-weight: 500;
}

/* ========== サービス ========== */
.services__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.services__card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 40px 24px;
  text-align: center;
  box-shadow: var(--shadow);
  transition: transform .25s, box-shadow .25s;
}
.services__card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 36px rgba(0,0,0,.12);
}
.services__card-icon {
  width: 68px;
  height: 68px;
  background: linear-gradient(135deg, var(--primary), #2a5080);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 22px;
  font-size: 1.5rem;
  color: var(--white);
}
.services__card-title {
  font-family: var(--serif);
  font-size: 1rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 12px;
}
.services__card-desc {
  font-size: .85rem;
  color: var(--text-light);
  line-height: 1.8;
}

/* ========== 選ばれる理由 ========== */
.reasons__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 36px;
}
.reasons__item {
  text-align: center;
  padding: 44px 28px;
  border-top: 4px solid var(--accent);
  background: var(--white);
  border-radius: 0 0 var(--radius) var(--radius);
  box-shadow: var(--shadow);
}
.reasons__num {
  font-family: var(--serif);
  font-size: 3rem;
  font-weight: 700;
  color: var(--bg-light);
  line-height: 1;
  margin-bottom: 4px;
}
.reasons__icon {
  font-size: 2rem;
  color: var(--accent);
  margin-bottom: 18px;
  display: block;
}
.reasons__title {
  font-family: var(--serif);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 12px;
}
.reasons__desc {
  font-size: .87rem;
  color: var(--text-light);
  line-height: 1.9;
}

/* ========== 料金 ========== */
.pricing__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  align-items: start;
}
.pricing__card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 40px 28px;
  box-shadow: var(--shadow);
  border: 2px solid transparent;
  position: relative;
}
.pricing__card--featured {
  border-color: var(--accent);
  transform: scale(1.03);
  z-index: 1;
}
.pricing__badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--accent);
  color: var(--white);
  font-size: .75rem;
  font-weight: 700;
  padding: 5px 18px;
  border-radius: 20px;
  white-space: nowrap;
}
.pricing__card-head {
  text-align: center;
  margin-bottom: 24px;
}
.pricing__plan-name {
  font-family: var(--serif);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--primary);
  display: block;
  margin-bottom: 6px;
}
.pricing__plan-desc {
  font-size: .82rem;
  color: var(--text-light);
}
.pricing__card-price {
  text-align: center;
  margin-bottom: 28px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border);
}
.pricing__price {
  font-size: 2rem;
  font-weight: 700;
  color: var(--primary);
  font-family: var(--serif);
}
.pricing__period {
  font-size: .8rem;
  color: var(--text-light);
  margin-left: 4px;
}
.pricing__list { margin-bottom: 28px; }
.pricing__list li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: .88rem;
  padding: 9px 0;
  border-bottom: 1px solid var(--bg-light);
}
.pricing__list li .fa-check { color: var(--accent); flex-shrink: 0; }
.pricing__list li .fa-times { color: #ccc; flex-shrink: 0; }
.pricing__list--off { color: var(--text-light) !important; }
.pricing__note {
  text-align: center;
  font-size: .8rem;
  color: var(--text-light);
  margin-top: 28px;
}

/* ========== お客様の声 ========== */
.testimonials__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.testimonials__card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 36px 28px;
  box-shadow: var(--shadow);
  border-left: 4px solid var(--accent);
}
.testimonials__stars {
  color: var(--accent);
  font-size: .9rem;
  margin-bottom: 16px;
  letter-spacing: 2px;
}
.testimonials__text {
  font-size: .88rem;
  line-height: 1.9;
  color: var(--text);
  margin-bottom: 16px;
}
.testimonials__author {
  font-size: .78rem;
  color: var(--text-light);
  font-weight: 500;
}
.testimonials__author::before { content: '— '; }

/* ========== FAQ ========== */
.faq__list {
  max-width: 780px;
  margin: 0 auto;
}
.faq__item {
  border-bottom: 1px solid var(--border);
}
.faq__question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 22px 4px;
  background: none;
  border: none;
  cursor: pointer;
  text-align: left;
  font-family: var(--sans);
  font-size: .95rem;
  font-weight: 700;
  color: var(--primary);
  transition: color .2s;
}
.faq__question:hover { color: var(--accent); }
.faq__icon {
  flex-shrink: 0;
  color: var(--accent);
  transition: transform .35s ease;
}
.faq__question[aria-expanded="true"] .faq__icon {
  transform: rotate(180deg);
}
.faq__answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height .4s ease;
}
.faq__answer p {
  padding: 0 4px 22px;
  font-size: .88rem;
  color: var(--text-light);
  line-height: 1.9;
}

/* ========== お問い合わせ ========== */
.contact {
  background: linear-gradient(135deg, var(--primary) 0%, #2a5080 100%);
}
.contact .section__title { margin-bottom: 12px; }

.contact__form {
  max-width: 760px;
  margin: 0 auto;
}
.contact__row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.contact__field { margin-bottom: 20px; }
.contact__field label {
  display: block;
  font-size: .85rem;
  font-weight: 700;
  color: rgba(255,255,255,.9);
  margin-bottom: 8px;
}
.contact__required {
  background: var(--accent);
  color: var(--white);
  font-size: .7rem;
  padding: 2px 8px;
  border-radius: 2px;
  margin-left: 8px;
  vertical-align: middle;
  font-weight: 400;
}
.contact__field input,
.contact__field select,
.contact__field textarea {
  width: 100%;
  padding: 13px 16px;
  background: rgba(255,255,255,.96);
  border: 2px solid transparent;
  border-radius: var(--radius);
  font-family: var(--sans);
  font-size: .9rem;
  color: var(--text);
  transition: border-color .2s;
  appearance: none;
}
.contact__field select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23666' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 40px;
}
.contact__field input:focus,
.contact__field select:focus,
.contact__field textarea:focus {
  outline: none;
  border-color: var(--accent);
}
.contact__field textarea { resize: vertical; }

/* ========== フッター ========== */
.footer {
  background: var(--primary-dark);
  color: rgba(255,255,255,.6);
  padding: 52px 0 24px;
}
.footer__inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px 36px;
  display: flex;
  gap: 48px;
  align-items: flex-start;
  flex-wrap: wrap;
  border-bottom: 1px solid rgba(255,255,255,.1);
}
.footer__logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--serif);
  font-size: 1.1rem;
  color: var(--white);
  flex-shrink: 0;
}
.footer__logo i { color: var(--accent); }
.footer__info { font-size: .82rem; line-height: 2.1; }
.footer__copy {
  text-align: center;
  font-size: .78rem;
  padding-top: 20px;
}
.footer__sample {
  text-align: center;
  font-size: .72rem;
  color: rgba(255,255,255,.35);
  margin-top: 6px;
}

/* ========== レスポンシブ ========== */
@media (max-width: 1024px) {
  .services__grid   { grid-template-columns: repeat(2, 1fr); }
  .problems__grid   { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  :root { --header-h: 60px; }

  .header__nav,
  .header__cta    { display: none; }
  .header__hamburger { display: flex; }

  .hero           { min-height: 88vh; }
  .hero__btns     { flex-direction: column; align-items: flex-start; }

  .numbers__inner { grid-template-columns: repeat(2, 1fr); }
  .numbers__item  { border-right: none; border-bottom: 1px solid rgba(255,255,255,.15); }
  .numbers__item:nth-child(2n) { border-right: none; }

  .services__grid    { grid-template-columns: 1fr; }
  .reasons__grid     { grid-template-columns: 1fr; gap: 24px; }
  .pricing__grid     { grid-template-columns: 1fr; }
  .pricing__card--featured { transform: none; }
  .testimonials__grid { grid-template-columns: 1fr; }

  .contact__row   { grid-template-columns: 1fr; }

  .footer__inner  { flex-direction: column; gap: 20px; }

  .section        { padding: 64px 0; }
}

@media (max-width: 480px) {
  .problems__grid  { grid-template-columns: 1fr; }
  .numbers__inner  { grid-template-columns: repeat(2, 1fr); }
  .hero__title     { font-size: 2.4rem; }
}