/* ============================================================
   ランディングページ専用スタイル（白＋ダークグレー基調）
   ※ カラー・フォント等のトークンは style.css の :root を利用
============================================================ */

.lp { background: var(--c-white); }

.lp-container {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 var(--pad);
}
.lp-container--narrow { max-width: 780px; }

/* セクション共通の上下余白 */
.lp-trouble, .lp-reasons, .lp-free, .lp-works,
.lp-flow, .lp-voice, .lp-guarantee, .lp-faq, .lp-contact {
  padding: clamp(64px, 9vw, 110px) 0;
}

/* ---------- 見出し ---------- */
.lp-h2 {
  font-family: var(--ff-serif);
  font-weight: var(--fw-bold);
  font-size: clamp(1.5rem, 3.4vw, 2.3rem);
  line-height: 1.5;
  color: var(--c-ink);
  letter-spacing: .03em;
  margin-bottom: 40px;
}
.lp-h2--center { text-align: center; }
.lp-h2--light { color: var(--c-white); }
.lp-h2__en {
  display: block;
  font-family: var(--ff-en);
  font-size: .95rem;
  font-weight: 600;
  letter-spacing: .24em;
  text-transform: uppercase;
  color: var(--c-grey-400);
  margin-bottom: 10px;
}
.lp-h2--light .lp-h2__en { color: rgba(255,255,255,.5); }

/* ---------- ボタン ---------- */
.lp-btn {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 3px;
  font-weight: var(--fw-bold);
  letter-spacing: .04em;
  border-radius: var(--r-sm);
  border: 1.5px solid transparent;
  cursor: pointer;
  text-align: center;
  transition: all var(--ease);
  padding: 14px 28px;
}
.lp-btn__main { font-size: 1rem; line-height: 1.3; }
.lp-btn__sub { font-size: .72rem; font-weight: var(--fw-reg); opacity: .8; letter-spacing: .02em; }
.lp-btn--lg { padding: 20px 40px; }
.lp-btn--lg .lp-btn__main { font-size: 1.12rem; }
.lp-btn--block { display: flex; width: 100%; }

.lp-btn--primary { background: var(--c-charcoal); color: var(--c-white); border-color: var(--c-charcoal); }
.lp-btn--primary:hover { background: var(--c-ink); border-color: var(--c-ink); }
.lp-btn--invert { background: var(--c-white); color: var(--c-charcoal); border-color: var(--c-white); }
.lp-btn--invert:hover { background: transparent; color: var(--c-white); }
.lp-btn--ghost { background: rgba(255,255,255,.05); color: var(--c-white); border-color: rgba(255,255,255,.5); }
.lp-btn--ghost:hover { background: rgba(255,255,255,.12); border-color: var(--c-white); }

/* ============================================================
   HEADER
============================================================ */
.lp-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  height: 72px;
  background: rgba(22,24,27,.96);
  backdrop-filter: blur(8px);
  transition: height var(--ease);
}
.lp-header__inner {
  max-width: var(--maxw);
  height: 100%;
  margin: 0 auto;
  padding: 0 var(--pad);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.lp-logo { display: flex; align-items: center; gap: 11px; }
.lp-logo__mark {
  display: grid; place-items: center;
  width: 38px; height: 38px;
  border: 1px solid rgba(255,255,255,.4);
  font-family: var(--ff-en); font-size: .95rem; font-weight: 600;
  color: var(--c-white);
}
.lp-logo__text { display: flex; flex-direction: column; line-height: 1.25; }
.lp-logo__en { font-family: var(--ff-en); font-size: 1.02rem; font-weight: 600; letter-spacing: .07em; color: var(--c-white); white-space: nowrap; }
.lp-logo__ja { font-size: .6rem; letter-spacing: .1em; color: rgba(255,255,255,.6); }

.lp-header__cta { display: flex; align-items: center; gap: 18px; }
.lp-header__tel { display: flex; flex-direction: column; align-items: flex-end; line-height: 1.2; }
.lp-header__tel-num { font-family: var(--ff-en); font-size: 1.25rem; font-weight: 600; color: var(--c-white); letter-spacing: .03em; }
.lp-header__tel-time { font-size: .64rem; color: rgba(255,255,255,.55); }
.lp-header__btn { padding: 12px 24px; }
.lp-header__btn .lp-btn__main { font-size: .9rem; }

/* ============================================================
   HERO
============================================================ */
.lp-hero {
  position: relative;
  display: flex;
  align-items: center;
  min-height: 100svh;
  padding: 110px 0 60px;
  overflow: hidden;
  background: var(--c-charcoal);
}
.lp-hero__bg {
  position: absolute; inset: 0;
  background:
    radial-gradient(120% 90% at 82% 8%, rgba(58,63,70,.5) 0%, transparent 55%),
    linear-gradient(160deg, rgba(44,48,54,.85) 0%, rgba(28,31,35,.9) 55%, rgba(20,22,25,.95) 100%),
    url('images/lp-hero-facade.jpg') center / cover no-repeat,
    #16181b;
  filter: grayscale(100%);
}
.lp-hero__bg::before {
  content: ''; position: absolute; inset: 0;
  background-image:
    repeating-linear-gradient(90deg, transparent 0 78px, rgba(255,255,255,.02) 78px 79px),
    repeating-linear-gradient(0deg,  transparent 0 78px, rgba(255,255,255,.02) 78px 79px);
  mask-image: linear-gradient(120deg, #000 30%, transparent 80%);
}
.lp-hero__inner { position: relative; z-index: 2; max-width: var(--maxw); margin: 0 auto; padding: 0 var(--pad); width: 100%; }
.lp-hero__eyebrow { font-size: .82rem; letter-spacing: .2em; color: var(--c-grey-400); margin-bottom: 22px; }
.lp-hero__title {
  font-family: var(--ff-serif);
  font-weight: var(--fw-bold);
  font-size: clamp(2.2rem, 5.6vw, 4rem);
  line-height: 1.32;
  color: var(--c-white);
  letter-spacing: .03em;
  margin-bottom: 26px;
}
.lp-hero__title-em {
  position: relative;
  white-space: nowrap;
}
.lp-hero__title-em::after {
  content: ''; position: absolute; left: 0; right: 0; bottom: .08em;
  height: .14em; background: rgba(255,255,255,.28);
}
.lp-hero__lead {
  font-weight: var(--fw-light);
  font-size: clamp(.95rem, 1.6vw, 1.1rem);
  line-height: 2;
  color: rgba(255,255,255,.8);
  margin-bottom: 34px;
}
.lp-hero__badges {
  display: flex; flex-wrap: wrap; gap: 14px;
  margin-bottom: 40px;
}
.lp-hero__badges li {
  display: flex; flex-direction: column;
  padding: 14px 22px;
  border: 1px solid rgba(255,255,255,.16);
  border-radius: var(--r-md);
  background: rgba(255,255,255,.03);
}
.lp-hero__badges strong { font-family: var(--ff-en); font-size: 1.4rem; font-weight: 600; color: var(--c-white); line-height: 1; }
.lp-hero__badges span { font-size: .72rem; color: rgba(255,255,255,.6); margin-top: 5px; }
.lp-hero__actions { display: flex; flex-wrap: wrap; gap: 16px; }

/* ============================================================
   お悩み
============================================================ */
.lp-trouble { background: var(--c-white); }
.lp-trouble__list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px 32px;
  max-width: 880px;
  margin: 0 auto;
}
.lp-trouble__list li {
  display: flex; align-items: flex-start; gap: 12px;
  padding: 18px 22px;
  background: var(--c-bg-alt);
  border-radius: var(--r-md);
  font-size: .95rem;
  font-weight: var(--fw-med);
  color: var(--c-grey-700);
}
.lp-check {
  flex-shrink: 0;
  display: grid; place-items: center;
  width: 22px; height: 22px;
  margin-top: 1px;
  background: var(--c-charcoal); color: var(--c-white);
  border-radius: 50%; font-size: .7rem;
}
.lp-trouble__bridge {
  text-align: center; margin-top: 44px;
  font-family: var(--ff-serif);
  font-size: clamp(1.1rem, 2.4vw, 1.5rem);
  color: var(--c-ink);
}
.lp-trouble__bridge strong { border-bottom: 3px solid var(--c-charcoal); padding-bottom: 2px; }

/* ============================================================
   選ばれる理由
============================================================ */
.lp-reasons { background: var(--c-bg-alt); }
.lp-reasons__grid {
  display: grid; grid-template-columns: repeat(2, 1fr);
  gap: clamp(18px, 2.5vw, 28px);
}
.lp-reason {
  position: relative;
  background: var(--c-white);
  border: 1px solid var(--c-line);
  border-radius: var(--r-md);
  padding: 38px 32px;
}
.lp-reason__num {
  font-family: var(--ff-en); font-size: 2.4rem; font-weight: 600;
  color: var(--c-grey-300); line-height: 1;
}
.lp-reason h3 {
  margin: 12px 0 14px;
  font-size: 1.2rem; font-weight: var(--fw-bold);
  color: var(--c-ink); line-height: 1.45;
}
.lp-reason p { font-size: .9rem; line-height: 1.9; color: var(--c-grey-700); }

/* ============================================================
   無料3点
============================================================ */
.lp-free { background: var(--c-charcoal); }
.lp-free__grid {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: clamp(16px, 2vw, 26px);
}
.lp-free__item {
  background: rgba(255,255,255,.04);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: var(--r-md);
  padding: 36px 26px;
  text-align: center;
}
.lp-free__no { font-family: var(--ff-en); font-size: 1.5rem; font-weight: 600; color: rgba(255,255,255,.5); }
.lp-free__item h3 { margin: 12px 0 12px; font-size: 1.08rem; font-weight: var(--fw-bold); color: var(--c-white); }
.lp-free__item p { font-size: .85rem; line-height: 1.85; color: rgba(255,255,255,.66); }
.lp-free__cta { text-align: center; margin-top: 44px; }

/* ============================================================
   施工実績（works-data.js から生成）
============================================================ */
.lp-works { background: var(--c-white); }
.lp-works__desc { text-align: center; margin: -20px auto 44px; color: var(--c-grey-500); font-size: .95rem; }
.lp-works__grid {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: clamp(14px, 1.8vw, 24px);
}
.lp-work {
  border-radius: var(--r-md); overflow: hidden;
  background: var(--c-white); border: 1px solid var(--c-line);
  transition: transform var(--ease), box-shadow var(--ease);
}
.lp-work:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); }
.lp-work__img {
  position: relative; aspect-ratio: 4 / 3;
  background: linear-gradient(150deg, #2c3036, #4a525c);
  background-size: cover; background-position: center;
}
.lp-work__tag {
  position: absolute; top: 12px; left: 12px;
  font-size: .68rem; font-weight: var(--fw-bold); letter-spacing: .06em;
  color: var(--c-white); background: rgba(0,0,0,.45);
  border: 1px solid rgba(255,255,255,.2);
  padding: 4px 10px; border-radius: 999px;
}
.lp-work__body { padding: 18px 18px 22px; }
.lp-work__body h3 { font-size: .9rem; font-weight: var(--fw-bold); color: var(--c-ink); line-height: 1.5; margin-bottom: 8px; }
.lp-work__body p { font-size: .76rem; color: var(--c-grey-500); }

/* ============================================================
   流れ
============================================================ */
.lp-flow { background: var(--c-bg-alt); }
.lp-flow__list {
  list-style: none; padding: 0; margin: 0;
  display: grid; grid-template-columns: repeat(5, 1fr);
  gap: clamp(14px, 1.8vw, 22px);
}
.lp-flow__list li {
  background: var(--c-white); border: 1px solid var(--c-line);
  border-radius: var(--r-md); padding: 26px 20px;
}
.lp-flow__no { font-family: var(--ff-en); font-size: 1.5rem; font-weight: 600; color: var(--c-grey-300); }
.lp-flow__list h3 { margin: 10px 0 8px; font-size: .96rem; font-weight: var(--fw-bold); color: var(--c-ink); }
.lp-flow__list p { font-size: .8rem; line-height: 1.8; color: var(--c-grey-500); }

/* ============================================================
   お客様の声
============================================================ */
.lp-voice { background: var(--c-white); }
.lp-voice__grid {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: clamp(18px, 2.4vw, 28px);
}
.lp-voice__card {
  background: var(--c-bg-alt); border-radius: var(--r-md);
  padding: 32px 28px; position: relative;
}
.lp-voice__card::before {
  content: '“'; position: absolute; top: 6px; left: 18px;
  font-family: var(--ff-en); font-size: 3.4rem; color: var(--c-grey-300); line-height: 1;
}
.lp-voice__card blockquote { font-size: .9rem; line-height: 1.95; color: var(--c-grey-700); margin: 18px 0 16px; }
.lp-voice__card figcaption { font-size: .8rem; font-weight: var(--fw-bold); color: var(--c-ink); }

/* ============================================================
   保証
============================================================ */
.lp-guarantee { background: var(--c-ink); }
.lp-guarantee__inner {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: clamp(32px, 5vw, 64px); align-items: center;
}
.lp-guarantee__lead h2 { margin-bottom: 18px; }
.lp-guarantee__lead p { color: rgba(255,255,255,.7); font-size: .95rem; line-height: 1.95; }
.lp-guarantee__steps { display: flex; justify-content: space-between; gap: 8px; }
.lp-guarantee__steps li {
  flex: 1;
  display: flex; flex-direction: column; align-items: center; gap: 6px;
  padding: 22px 6px;
  border: 1px solid rgba(255,255,255,.14); border-radius: var(--r-md);
  font-size: .72rem; color: rgba(255,255,255,.6);
}
.lp-guarantee__steps strong { font-family: var(--ff-en); font-size: 1.5rem; font-weight: 600; color: var(--c-white); }

/* ============================================================
   FAQ
============================================================ */
.lp-faq { background: var(--c-bg-alt); }
.lp-faq__item {
  background: var(--c-white); border: 1px solid var(--c-line);
  border-radius: var(--r-md); margin-bottom: 14px; overflow: hidden;
}
.lp-faq__item summary {
  list-style: none; cursor: pointer;
  padding: 22px 56px 22px 26px; position: relative;
  font-weight: var(--fw-bold); color: var(--c-ink); font-size: .98rem;
}
.lp-faq__item summary::-webkit-details-marker { display: none; }
.lp-faq__item summary::before { content: 'Q'; font-family: var(--ff-en); color: var(--c-grey-400); margin-right: 12px; }
.lp-faq__item summary::after {
  content: ''; position: absolute; right: 26px; top: 50%;
  width: 11px; height: 11px;
  border-right: 2px solid var(--c-grey-400); border-bottom: 2px solid var(--c-grey-400);
  transform: translateY(-65%) rotate(45deg); transition: transform var(--ease);
}
.lp-faq__item[open] summary::after { transform: translateY(-35%) rotate(225deg); }
.lp-faq__a { padding: 0 26px 24px; font-size: .9rem; line-height: 1.9; color: var(--c-grey-700); }

/* ============================================================
   CONTACT
============================================================ */
.lp-contact { background: var(--c-charcoal); }
.lp-contact__lead { text-align: center; color: rgba(255,255,255,.66); font-size: .95rem; margin: -18px 0 36px; }
.lp-contact__tel {
  display: flex; flex-direction: column; align-items: center; gap: 4px;
  max-width: 420px; margin: 0 auto 36px;
  padding: 22px; border: 1px solid rgba(255,255,255,.16);
  border-radius: var(--r-md); background: rgba(255,255,255,.04);
}
.lp-contact__tel span { font-size: .76rem; color: rgba(255,255,255,.55); }
.lp-contact__tel strong { font-family: var(--ff-sans); font-size: 2rem; font-weight: 700; color: var(--c-white); letter-spacing: .06em; font-feature-settings: "tnum"; }

.lp-form { display: flex; flex-direction: column; gap: 20px; }
.lp-form__row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.lp-form__field { display: flex; flex-direction: column; gap: 8px; }
.lp-form__field label { font-size: .82rem; font-weight: var(--fw-med); color: rgba(255,255,255,.78); display: flex; align-items: center; gap: 8px; }
.lp-req { font-size: .64rem; font-weight: var(--fw-bold); color: var(--c-charcoal); background: var(--c-white); padding: 2px 7px; border-radius: 3px; }
.lp-form__field input,
.lp-form__field select,
.lp-form__field textarea {
  width: 100%; font-family: var(--ff-sans); font-size: .92rem;
  color: var(--c-white); background: rgba(255,255,255,.05);
  border: 1px solid rgba(255,255,255,.14); border-radius: var(--r-sm);
  padding: 13px 16px; outline: none;
  transition: border-color var(--ease), background var(--ease);
}
.lp-form__field input::placeholder, .lp-form__field textarea::placeholder { color: rgba(255,255,255,.3); }
.lp-form__field input:focus, .lp-form__field select:focus, .lp-form__field textarea:focus { border-color: rgba(255,255,255,.7); background: rgba(255,255,255,.09); }
.lp-form__field select option { background: var(--c-charcoal); color: var(--c-white); }
.lp-form__field textarea { resize: vertical; min-height: 110px; }
.lp-form__check { display: flex; align-items: center; gap: 10px; font-size: .85rem; color: rgba(255,255,255,.65); cursor: pointer; }
.lp-form__check input { width: 16px; height: 16px; accent-color: var(--c-white); }
.lp-form__check a { border-bottom: 1px solid rgba(255,255,255,.4); }
.lp-form__note { font-size: .76rem; color: rgba(255,255,255,.45); text-align: center; line-height: 1.7; }

/* ============================================================
   FOOTER
============================================================ */
.lp-footer { background: #0e0f11; color: rgba(255,255,255,.6); padding: 48px 0 0; }
.lp-footer__inner { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 24px; padding-bottom: 36px; }
.lp-footer__brand { display: flex; flex-direction: column; gap: 6px; }
.lp-footer__brand .lp-logo__en { font-size: 1.3rem; }
.lp-footer__ja { font-size: .72rem; color: rgba(255,255,255,.4); }
.lp-footer__info p { font-size: .82rem; line-height: 1.9; }
.lp-footer__info a { border-bottom: 1px solid rgba(255,255,255,.3); }
.lp-footer__info a:hover { color: var(--c-white); }
.lp-footer__copy { border-top: 1px solid rgba(255,255,255,.08); padding: 18px var(--pad); text-align: center; font-family: var(--ff-en); font-size: .74rem; letter-spacing: .12em; color: rgba(255,255,255,.3); }

/* ============================================================
   追従CTAバー
============================================================ */
.lp-fixedbar {
  position: fixed; inset: auto 0 0 0; z-index: 95;
  display: none;
  gap: 10px; padding: 10px 14px;
  background: rgba(22,24,27,.97); backdrop-filter: blur(8px);
  box-shadow: 0 -4px 20px rgba(0,0,0,.25);
  transform: translateY(100%); transition: transform var(--ease);
}
.lp-fixedbar.visible { transform: translateY(0); }
.lp-fixedbar a {
  flex: 1; text-align: center; padding: 14px 8px;
  font-weight: var(--fw-bold); font-size: .92rem; border-radius: var(--r-sm);
}
.lp-fixedbar__tel { color: var(--c-white); border: 1.5px solid rgba(255,255,255,.5); }
.lp-fixedbar__btn { color: var(--c-charcoal); background: var(--c-white); }

/* ============================================================
   レスポンシブ
============================================================ */
@media (max-width: 1024px) {
  .lp-works__grid { grid-template-columns: repeat(2, 1fr); }
  .lp-flow__list { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 768px) {
  .lp-header { height: 60px; }
  .lp-header__tel { display: none; }
  .lp-logo__ja { display: none; }

  .lp-hero { min-height: auto; padding: 96px 0 56px; }
  .lp-hero__actions .lp-btn { width: 100%; }

  .lp-trouble__list { grid-template-columns: 1fr; }
  .lp-reasons__grid { grid-template-columns: 1fr; }
  .lp-free__grid { grid-template-columns: 1fr; }
  .lp-flow__list { grid-template-columns: 1fr 1fr; }
  .lp-voice__grid { grid-template-columns: 1fr; }
  .lp-guarantee__inner { grid-template-columns: 1fr; }

  .lp-fixedbar { display: flex; }
  main { padding-bottom: 0; }
}
@media (max-width: 520px) {
  .lp-works__grid { grid-template-columns: 1fr 1fr; }
  .lp-flow__list { grid-template-columns: 1fr; }
  .lp-form__row { grid-template-columns: 1fr; }
  .lp-guarantee__steps { flex-wrap: wrap; }
  .lp-guarantee__steps li { flex: 1 1 28%; }
  .lp-header__btn .lp-btn__main { font-size: .82rem; }
  .lp-header__btn { padding: 10px 16px; }
}

/* ============================================================
   トップページLP化で追加（コンセプト／サービス／会社情報／実績準備中）
============================================================ */
.lp-concept { background: var(--c-white); }
.lp-concept__inner {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: clamp(32px, 6vw, 72px); align-items: center;
}
.lp-concept__img {
  aspect-ratio: 4 / 5; border-radius: var(--r-md);
  background:
    linear-gradient(150deg, rgba(22,24,27,.2), rgba(22,24,27,.5)),
    url('images/concept-building.jpg') center / cover no-repeat;
  filter: grayscale(100%); box-shadow: var(--shadow-md);
}
.lp-concept__body p { font-size: .96rem; line-height: 2; color: var(--c-grey-700); margin-bottom: 18px; }

.lp-service { background: var(--c-bg-alt); }
.lp-service__grid {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: clamp(16px, 2vw, 24px);
}
.lp-service__item {
  background: var(--c-white); border: 1px solid var(--c-line);
  border-radius: var(--r-md); padding: 32px 24px;
}
.lp-service__num { font-family: var(--ff-en); font-size: 1.5rem; font-weight: 600; color: var(--c-grey-300); }
.lp-service__item h3 { margin: 12px 0 10px; font-size: 1.05rem; font-weight: var(--fw-bold); color: var(--c-ink); }
.lp-service__item p { font-size: .84rem; line-height: 1.8; color: var(--c-grey-500); }

.lp-company { background: var(--c-white); }
.lp-company__layout {
  display: grid; grid-template-columns: .85fr 1fr;
  gap: clamp(32px, 5vw, 64px); align-items: start;
  max-width: 980px; margin: 0 auto;
}

.lp-works__empty { text-align: center; color: var(--c-grey-500); font-size: .95rem; padding: 48px 0; }

@media (max-width: 1024px) {
  .lp-service__grid { grid-template-columns: repeat(2, 1fr); }
  .lp-company__layout { grid-template-columns: 1fr; }
  .lp-company__layout .company__map { max-width: 520px; }
}
@media (max-width: 768px) {
  .lp-concept__inner { grid-template-columns: 1fr; }
  .lp-concept__img { aspect-ratio: 16 / 10; order: -1; }
}
@media (max-width: 520px) {
  .lp-service__grid { grid-template-columns: 1fr; }
}