/* ============================================
   MASUZAWA GIKEN — Common Stylesheet
   ============================================ */

/* --- RESET & BASE --- */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Noto Sans JP', sans-serif;
  font-size: 16px;
  line-height: 1.8;
  color: #1A1A2E;
  background: #FFFFFF;
}
a { text-decoration: none; color: inherit; }
a:focus-visible, button:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; border-radius: 4px; }
ul { list-style: none; }
img { max-width: 100%; height: auto; display: block; }

/* --- CSS VARIABLES --- */
:root {
  --primary: #1B7340;
  --primary-hover: #145A30;
  --accent: #4CAF50;
  --dark: #1A1A2E;
  --text: #333333;
  --sub-text: #666666;
  --bg-gray: #F5F5F5;
  --border: #E0E0E0;
  --white: #FFFFFF;
  --overlay-dark: rgba(26, 26, 46, 0.7);
  --container: 1200px;
  --header-h: 80px;
  --section-py: 100px;
  --font-en: 'Montserrat', sans-serif;
  --font-ja: 'Noto Sans JP', sans-serif;
}

/* --- UTILITY --- */
.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }
.placeholder-img {
  background: linear-gradient(135deg, #c8e6c9 0%, #a5d6a7 50%, #81c784 100%);
  display: flex; align-items: center; justify-content: center;
  color: var(--primary); font-size: 14px; font-weight: 700; letter-spacing: 0.05em;
}

/* --- SECTION HEADING --- */
.section-heading { text-align: center; margin-bottom: 60px; }
.section-heading__en {
  font-family: var(--font-en); font-size: 48px; font-weight: 700;
  color: var(--primary); letter-spacing: 0.15em; margin-bottom: 8px;
}
.section-heading__line { width: 40px; height: 3px; background: var(--primary); margin: 12px auto; }
.section-heading__ja { font-family: var(--font-ja); font-size: 18px; font-weight: 700; color: var(--dark); }
.section-heading--white .section-heading__en { color: var(--white); }
.section-heading--white .section-heading__line { background: var(--white); }
.section-heading--white .section-heading__ja { color: rgba(255,255,255,0.85); }

/* --- BUTTONS --- */
.btn-primary {
  display: inline-block; background: var(--primary); color: var(--white);
  padding: 16px 40px; border-radius: 4px; font-size: 16px; font-weight: 700;
  transition: all 0.2s; border: 2px solid var(--primary);
}
.btn-primary:hover {
  background: var(--primary-hover); border-color: var(--primary-hover);
  transform: translateY(-2px); box-shadow: 0 4px 12px rgba(27,115,64,0.3);
}
.btn-secondary {
  display: inline-block; background: transparent; color: var(--white);
  padding: 16px 40px; border-radius: 4px; font-size: 16px; font-weight: 700;
  border: 2px solid var(--white); transition: all 0.2s;
}
.btn-secondary:hover { background: var(--white); color: var(--primary); transform: translateY(-2px); }
.btn-outline {
  display: inline-block; background: transparent; color: var(--primary);
  padding: 16px 40px; border-radius: 4px; font-size: 16px; font-weight: 700;
  border: 2px solid var(--primary); transition: all 0.2s;
}
.btn-outline:hover { background: var(--primary); color: var(--white); transform: translateY(-2px); }
.text-link { color: var(--accent); font-weight: 700; font-size: 15px; transition: opacity 0.2s; }
.text-link:hover { opacity: 0.7; }

/* --- HEADER --- */
.header {
  position: fixed; top: 0; left: 0; width: 100%; height: var(--header-h);
  background: var(--white); z-index: 1000; transition: box-shadow 0.3s;
}
.header.scrolled { box-shadow: 0 2px 8px rgba(0,0,0,0.1); }
.header__inner {
  max-width: var(--container); margin: 0 auto; padding: 0 24px;
  height: 100%; display: flex; align-items: center; justify-content: space-between;
}
.header__logo { display: flex; align-items: center; gap: 12px; }
.header__logo img { height: 50px; width: auto; }
.header__logo-text { font-family: var(--font-ja); font-size: 20px; font-weight: 700; color: var(--primary); white-space: nowrap; }
.header__logo-text span { display: block; font-size: 11px; color: var(--sub-text); font-weight: 400; letter-spacing: 0.05em; }
.header__nav { display: flex; align-items: center; gap: 28px; }
.header__nav a { font-size: 14px; font-weight: 700; color: var(--dark); transition: color 0.2s; white-space: nowrap; }
.header__nav a:hover { color: var(--primary); }
.header__right { display: flex; align-items: center; gap: 16px; }
.header__tel { font-family: var(--font-en); font-size: 15px; font-weight: 700; color: var(--dark); white-space: nowrap; }
.header__cta {
  background: var(--primary); color: var(--white); padding: 10px 24px;
  border-radius: 4px; font-size: 14px; font-weight: 700; transition: all 0.2s; white-space: nowrap;
}
.header__cta:hover { background: var(--primary-hover); transform: translateY(-1px); }

/* --- HAMBURGER MENU --- */
.hamburger {
  display: none; width: 40px; height: 40px; background: none; border: none;
  cursor: pointer; position: relative; z-index: 1001;
}
.hamburger__line {
  display: block; width: 24px; height: 2px; background: var(--dark);
  position: absolute; left: 8px; transition: all 0.3s;
}
.hamburger__line:nth-child(1) { top: 12px; }
.hamburger__line:nth-child(2) { top: 19px; }
.hamburger__line:nth-child(3) { top: 26px; }
.hamburger.is-open .hamburger__line:nth-child(1) { top: 19px; transform: rotate(45deg); }
.hamburger.is-open .hamburger__line:nth-child(2) { opacity: 0; }
.hamburger.is-open .hamburger__line:nth-child(3) { top: 19px; transform: rotate(-45deg); }

.mobile-nav {
  display: none; position: fixed; top: 0; left: 0; width: 100%; height: 100vh;
  background: rgba(26,26,46,0.95); z-index: 999;
  flex-direction: column; align-items: center; justify-content: center; gap: 24px;
}
.mobile-nav.is-open { display: flex; }
.mobile-nav a {
  font-size: 18px; font-weight: 700; color: var(--white); transition: color 0.2s;
}
.mobile-nav a:hover { color: var(--accent); }
.mobile-nav__tel {
  font-family: var(--font-en); font-size: 20px; font-weight: 700; color: var(--white);
  margin-top: 16px; padding-top: 24px; border-top: 1px solid rgba(255,255,255,0.2);
}
.mobile-nav__cta {
  display: inline-block; background: var(--primary); color: var(--white);
  padding: 14px 40px; border-radius: 4px; font-size: 16px; font-weight: 700;
  margin-top: 8px; transition: all 0.2s;
}
.mobile-nav__cta:hover { background: var(--primary-hover); }

/* --- PAGE HERO BANNER (subpages) --- */
.page-hero {
  padding-top: calc(var(--header-h) + 60px); padding-bottom: 60px;
  background: linear-gradient(135deg, #2d3a2e 0%, #1a2e1f 40%, #0f1a12 100%);
  position: relative; text-align: center;
}
.page-hero::before { content:''; position:absolute; inset:0; background:var(--overlay-dark); }
.page-hero .section-heading { position: relative; z-index: 1; margin-bottom: 0; }
.page-hero__sub { position: relative; z-index:1; color: rgba(255,255,255,0.7); font-size: 15px; margin-top: 16px; }

/* --- BREADCRUMB --- */
.breadcrumb { padding: 16px 0; font-size: 13px; color: var(--sub-text); }
.breadcrumb a { color: var(--accent); }
.breadcrumb span { margin: 0 8px; }

/* --- SECTION BACKGROUNDS --- */
.section-white { background: var(--white); }
.section-gray { background: var(--bg-gray); }
.section-dark { background: var(--dark); }

/* --- CARD BASE --- */
.card {
  background: var(--white); border: 1px solid var(--border); border-radius: 8px;
  overflow: hidden; transition: transform 0.3s, box-shadow 0.3s;
}
.card:hover { transform: translateY(-4px); box-shadow: 0 4px 16px rgba(0,0,0,0.12); }
.card__img { overflow: hidden; }
.card__img img { width: 100%; height: 100%; object-fit: cover; }
.card__body { padding: 24px; }
.card__tag {
  display: inline-block; background: var(--primary); color: var(--white);
  font-size: 11px; font-weight: 700; padding: 3px 10px; border-radius: 3px;
}

/* --- CTA SECTION --- */
.cta-section { padding: 80px 0; background: var(--dark); text-align: center; }
.cta-section__lead { font-size: 28px; font-weight: 700; color: var(--white); line-height: 1.6; margin-bottom: 24px; }
.cta-section__tel { font-family: var(--font-en); font-size: 40px; font-weight: 700; color: var(--white); margin-bottom: 8px; }
.cta-section__hours { font-size: 14px; color: rgba(255,255,255,0.6); margin-bottom: 36px; }
.cta-section__contacts {
  display: flex; gap: 32px; justify-content: center; margin-bottom: 32px; flex-wrap: wrap;
}
.cta-section__contact-card {
  text-align: center; padding: 16px 24px; border: 1px solid rgba(255,255,255,0.2);
  border-radius: 8px; min-width: 200px;
}
.cta-section__contact-area { font-size: 12px; color: rgba(255,255,255,0.5); margin-bottom: 4px; }
.cta-section__contact-name { font-size: 14px; font-weight: 700; color: var(--white); margin-bottom: 4px; }
.cta-section__contact-tel { font-family: var(--font-en); font-size: 20px; font-weight: 700; color: var(--white); }
.cta-section__buttons { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* --- FOOTER --- */
.footer { background: var(--dark); padding: 60px 0 0; border-top: 1px solid rgba(255,255,255,0.1); }
.footer__inner { display: grid; grid-template-columns: 240px 1fr; gap: 60px; margin-bottom: 40px; }
.footer__logo { display: flex; align-items: center; gap: 12px; }
.footer__logo img { height: 40px; width: auto; filter: brightness(0) invert(1); }
.footer__logo-text { font-family: var(--font-ja); font-size: 18px; font-weight: 700; color: var(--white); }
.footer__logo-text span { display:block; font-size:11px; color:rgba(255,255,255,0.5); font-weight:400; margin-top:2px; }
.footer__nav { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.footer__nav a { font-size: 13px; color: rgba(255,255,255,0.7); transition: color 0.2s; }
.footer__nav a:hover { color: var(--white); }
.footer__divider { border: none; border-top: 1px solid rgba(255,255,255,0.1); margin-bottom: 24px; }
.footer__group { font-size: 13px; color: rgba(255,255,255,0.5); margin-bottom: 16px; }
.footer__group a { color: rgba(255,255,255,0.7); margin-left: 8px; transition: color 0.2s; }
.footer__group a:hover { color: var(--white); }
.footer__copy { font-size: 12px; color: rgba(255,255,255,0.4); padding-bottom: 24px; }

/* --- FLOATING CTA --- */
.floating-cta {
  position: fixed; right: 24px; bottom: 24px; z-index: 999;
  opacity: 0; transform: translateY(20px); transition: all 0.3s; pointer-events: none;
}
.floating-cta.visible { opacity: 1; transform: translateY(0); pointer-events: auto; }
.floating-cta a {
  display: flex; align-items: center; gap: 8px; background: var(--primary); color: var(--white);
  padding: 16px 24px; border-radius: 8px; font-size: 14px; font-weight: 700;
  box-shadow: 0 4px 16px rgba(27,115,64,0.4); transition: all 0.2s;
}
.floating-cta a:hover { background: var(--primary-hover); transform: translateY(-2px); box-shadow: 0 6px 20px rgba(27,115,64,0.5); }

/* --- SCROLL ANIMATIONS --- */
.fade-in { opacity: 0; transform: translateY(20px); transition: opacity 0.6s ease, transform 0.6s ease; }
.fade-in.is-visible { opacity: 1; transform: translateY(0); }

/* --- COMMON GRID HELPERS --- */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.text-center { text-align: center; }
.mt-40 { margin-top: 40px; }
.mb-40 { margin-bottom: 40px; }
.mb-60 { margin-bottom: 60px; }
.section-padding { padding: var(--section-py) 0; }

/* ============================================
   TOP PAGE
   ============================================ */
.hero {
  position: relative; height: 100vh; min-height: 700px;
  display: flex; align-items: center;
  background: #0f1a12 url('../images/hero_bg.jpg') center center / cover no-repeat;
  overflow: hidden;
}
.hero::before {
  content:''; position:absolute; inset:0; z-index:1;
  background: linear-gradient(135deg, rgba(15,26,18,0.75) 0%, rgba(26,46,31,0.65) 40%, rgba(15,26,18,0.85) 100%);
}
.hero::after {
  content:''; position:absolute; inset:0; z-index:1;
  background: radial-gradient(circle at 20% 80%, rgba(27,115,64,0.25) 0%, transparent 50%),
              radial-gradient(circle at 80% 20%, rgba(27,115,64,0.15) 0%, transparent 50%);
}
.hero__content { position:relative; z-index:2; max-width:var(--container); margin:0 auto; padding:0 24px; padding-top:var(--header-h); }
.hero__catch { font-size:52px; font-weight:700; color:var(--white); line-height:1.4; margin-bottom:24px; }
.hero__sub { font-size:18px; color:rgba(255,255,255,0.85); line-height:2; margin-bottom:40px; max-width:560px; }
.hero__buttons { display:flex; gap:16px; flex-wrap:wrap; }
.hero__scroll {
  position:absolute; bottom:40px; left:50%; transform:translateX(-50%); z-index:2;
  display:flex; flex-direction:column; align-items:center; gap:8px;
  color:rgba(255,255,255,0.6); font-size:12px; letter-spacing:0.1em; font-family:var(--font-en);
}
.hero__scroll-line { width:1px; height:40px; background:rgba(255,255,255,0.4); animation:scrollLine 1.5s ease-in-out infinite; }
@keyframes scrollLine {
  0%{transform:scaleY(0);transform-origin:top}50%{transform:scaleY(1);transform-origin:top}
  51%{transform:scaleY(1);transform-origin:bottom}100%{transform:scaleY(0);transform-origin:bottom}
}

/* ABOUT */
.about__grid { display:grid; grid-template-columns:1fr 1fr; gap:60px; align-items:center; }
.about__img { aspect-ratio:4/3; border-radius:8px; overflow:hidden; }
.about__img .placeholder-img { height:100%; }
.about__text h3 { font-size:28px; font-weight:700; margin-bottom:24px; color:var(--dark); }
.about__text p { font-size:16px; line-height:2; color:var(--text); margin-bottom:16px; }

/* STRENGTH */
.strength__numbers { display:flex; justify-content:center; gap:60px; margin-bottom:48px; }
.strength__number-item { text-align:center; }
.strength__number-value { font-family:var(--font-en); font-size:56px; font-weight:700; color:var(--primary); line-height:1.2; }
.strength__number-label { font-size:14px; color:var(--sub-text); margin-top:4px; }
.strength__card { background:var(--white); border-radius:8px; padding:48px 32px; text-align:center; transition:transform .3s,box-shadow .3s,opacity .5s; opacity:0; transform:translateY(16px); }
.strength__card.is-visible { opacity:1; transform:translateY(0); }
.strength__card:hover { transform:translateY(-4px); box-shadow:0 8px 24px rgba(0,0,0,0.08); }
.strength__icon { width:64px; height:64px; margin:0 auto 20px; display:flex; align-items:center; justify-content:center; }
.strength__icon svg { width:48px; height:48px; color:var(--primary); }
.strength__card h3 { font-size:20px; font-weight:700; color:var(--dark); margin-bottom:16px; }
.strength__card p { font-size:15px; color:var(--sub-text); line-height:1.8; }

/* SERVICE (top) */
.service__inner { max-width:800px; margin:0 auto; text-align:center; }
.service__img { aspect-ratio:16/7; border-radius:8px; overflow:hidden; margin-bottom:32px; }
.service__img .placeholder-img { height:100%; background:linear-gradient(135deg,#e8f5e9 0%,#c8e6c9 50%,#a5d6a7 100%); }
.service__inner p { font-size:16px; line-height:2; color:var(--text); margin-bottom:32px; text-align:left; }

/* PRODUCTS (top) */
.products__card-img { aspect-ratio:4/3; }
.products__card-img .placeholder-img { height:100%; background:linear-gradient(135deg,#e0e0e0,#f5f5f5,#e0e0e0); color:var(--sub-text); }
.products__card-body h3 { font-family:var(--font-en); font-size:22px; font-weight:700; color:var(--dark); margin-bottom:4px; }
.products__card-cat { font-size:13px; color:var(--sub-text); margin-bottom:12px; }
.products__card-spec { font-size:15px; color:var(--text); margin-bottom:16px; }

/* CASE (top) */
.cases__video { max-width:800px; margin:0 auto 40px; border-radius:8px; overflow:hidden; }
.cases__video iframe { width:100%; aspect-ratio:16/9; border:none; }
.cases__grid { display:grid; grid-template-columns:repeat(2,1fr); gap:24px; max-width:800px; margin:0 auto 40px; }
.cases__card-img { aspect-ratio:16/9; }
.cases__card-img .placeholder-img { height:100%; background:linear-gradient(135deg,#e8eaf6,#c5cae9,#9fa8da); color:#3f51b5; }
.cases__card-tags { display:flex; gap:8px; margin-bottom:12px; }
.cases__card-body h3 { font-size:18px; font-weight:700; color:var(--dark); margin-bottom:8px; }
.cases__card-body p { font-size:14px; color:var(--sub-text); margin-bottom:12px; }

/* FLOW (top) */
.flow__timeline { max-width:640px; margin:0 auto 40px; }
.flow__step { display:flex; align-items:flex-start; gap:24px; position:relative; padding-bottom:40px; }
.flow__step:last-child { padding-bottom:0; }
.flow__step-num {
  flex-shrink:0; width:50px; height:50px; border-radius:50%; background:var(--primary);
  color:var(--white); font-family:var(--font-en); font-size:18px; font-weight:700;
  display:flex; align-items:center; justify-content:center; position:relative; z-index:1;
}
.flow__step:not(:last-child)::after {
  content:''; position:absolute; top:50px; left:25px; transform:translateX(-50%);
  width:2px; height:calc(100% - 10px); background:var(--border); z-index:0;
}
.flow__step-text h4 { font-size:18px; font-weight:700; color:var(--dark); margin-top:12px; }

/* NEWS */
.news__list { max-width:800px; margin:0 auto 40px; border-top:1px solid var(--border); }
.news__item { display:flex; align-items:center; gap:20px; padding:20px 0; border-bottom:1px solid var(--border); transition:background .2s; }
.news__item:hover { background:var(--bg-gray); }
.news__date { font-family:var(--font-en); font-size:14px; font-weight:500; color:var(--sub-text); white-space:nowrap; }
.news__cat { display:inline-block; font-size:11px; font-weight:700; padding:3px 12px; border-radius:3px; white-space:nowrap; }
.news__cat--tech { background:var(--primary); color:var(--white); }
.news__cat--info { background:var(--dark); color:var(--white); }
.news__cat--case { background:var(--accent); color:var(--white); }
.news__title { font-size:15px; color:var(--dark); }

/* ============================================
   SERVICE PAGE
   ============================================ */
.challenge__card { background:var(--white); border-radius:8px; padding:40px 28px; text-align:center; }
.challenge__icon { margin-bottom:16px; color:var(--primary); }
.challenge__icon svg { width:48px; height:48px; }
.challenge__card h3 { font-size:20px; font-weight:700; color:var(--dark); margin-bottom:12px; }
.challenge__card p { font-size:14px; color:var(--sub-text); line-height:1.8; }
.solution__list { max-width:800px; margin:0 auto; }
.solution__item { display:flex; gap:20px; margin-bottom:32px; align-items:flex-start; }
.solution__check { flex-shrink:0; width:40px; height:40px; background:var(--primary); color:var(--white); border-radius:50%; display:flex; align-items:center; justify-content:center; font-size:20px; font-weight:700; }
.solution__item h4 { font-size:18px; font-weight:700; color:var(--dark); margin-bottom:4px; }
.solution__item p { font-size:15px; color:var(--sub-text); line-height:1.8; }
.process-compare { display:grid; grid-template-columns:1fr 1fr; gap:32px; max-width:900px; margin:0 auto; }
.process-box { background:var(--white); border-radius:8px; padding:32px; border:2px solid var(--border); }
.process-box--highlight { border-color:var(--primary); }
.process-box h3 { font-size:20px; font-weight:700; margin-bottom:16px; color:var(--dark); }
.process-box ul { padding-left:20px; }
.process-box li { font-size:15px; color:var(--sub-text); margin-bottom:8px; list-style:disc; }
.process-note { margin-top:32px; padding:24px; background:var(--bg-gray); border-left:4px solid var(--primary); border-radius:0 8px 8px 0; }
.process-note p { font-size:14px; line-height:1.8; color:var(--text); margin:0; }
.flow-image { max-width:900px; margin:0 auto; border-radius:8px; overflow:hidden; }
.flow-image img { width:100%; }
.timechart-image { max-width:700px; margin:0 auto; }
.timechart-image img { width:100%; }
.wastewater__card { background:var(--white); border-radius:8px; padding:32px 24px; text-align:center; border:1px solid var(--border); }
.wastewater__icon { margin-bottom:12px; color:var(--primary); }
.wastewater__icon svg { width:36px; height:36px; }
.wastewater__card h4 { font-size:16px; font-weight:700; color:var(--dark); }

/* ============================================
   PRODUCTS PAGE
   ============================================ */
.category-cards { display:grid; grid-template-columns:1fr 1fr; gap:32px; margin-bottom:60px; }
.category-card { background:var(--white); border:2px solid var(--border); border-radius:8px; padding:40px 32px; text-align:center; transition:border-color .3s; }
.category-card:hover { border-color:var(--primary); }
.category-card h3 { font-size:24px; font-weight:700; color:var(--dark); margin-bottom:4px; }
.category-card .sub { font-family:var(--font-en); font-size:14px; color:var(--sub-text); margin-bottom:16px; }
.category-card p { font-size:15px; color:var(--text); line-height:1.8; margin-bottom:8px; }
.series-label { font-size:22px; font-weight:700; color:var(--dark); margin-bottom:24px; padding-bottom:12px; border-bottom:3px solid var(--primary); display:inline-block; }
.product-card .placeholder-img { height:100%; background:linear-gradient(135deg,#e0e0e0,#f5f5f5,#e0e0e0); color:var(--sub-text); }
.product-card__img { aspect-ratio:4/3; }
.product-card h3 { font-family:var(--font-en); font-size:22px; font-weight:700; color:var(--dark); margin-bottom:4px; }
.product-card .cat { font-size:13px; color:var(--sub-text); margin-bottom:12px; }
.product-card .spec { font-size:14px; color:var(--text); margin-bottom:4px; }
.spec-table-wrapper { overflow-x:auto; -webkit-overflow-scrolling:touch; }
.spec-table { width:100%; border-collapse:collapse; font-size:14px; min-width:800px; }
.spec-table th, .spec-table td { padding:12px 16px; border:1px solid var(--border); text-align:center; }
.spec-table th { background:var(--primary); color:var(--white); font-weight:700; font-size:13px; white-space:nowrap; }
.spec-table tbody tr:nth-child(even) { background:var(--bg-gray); }
.spec-table tbody tr:hover { background:rgba(27,115,64,0.08); }
.custom-section { display:grid; grid-template-columns:1fr 1fr; gap:48px; align-items:center; }
.custom-section .placeholder-img { aspect-ratio:4/3; border-radius:8px; height:auto; }
.custom-section h3 { font-size:24px; font-weight:700; color:var(--dark); margin-bottom:16px; }
.custom-section p { font-size:15px; color:var(--text); line-height:1.8; margin-bottom:24px; }

/* ============================================
   FLOW PAGE
   ============================================ */
.flow-detail { max-width:720px; margin:0 auto; }
.flow-step { display:flex; align-items:flex-start; gap:28px; position:relative; padding-bottom:48px; }
.flow-step:last-child { padding-bottom:0; }
.flow-step:not(:last-child)::after { content:''; position:absolute; top:56px; left:28px; transform:translateX(-50%); width:2px; height:calc(100% - 16px); background:var(--border); }
.flow-step__num { flex-shrink:0; width:56px; height:56px; border-radius:50%; background:var(--primary); color:var(--white); font-family:var(--font-en); font-size:20px; font-weight:700; display:flex; align-items:center; justify-content:center; position:relative; z-index:1; }
.flow-step__content { padding-top:6px; }
.flow-step__content h3 { font-size:20px; font-weight:700; color:var(--dark); margin-bottom:8px; }
.flow-step__content p { font-size:15px; color:var(--sub-text); line-height:1.8; }
.compare-table { display:grid; grid-template-columns:repeat(3,1fr); gap:24px; max-width:900px; margin:0 auto; }
.compare-card { background:var(--white); border:2px solid var(--border); border-radius:8px; padding:32px 24px; }
.compare-card--highlight { border-color:var(--primary); position:relative; }
.compare-card--highlight::before { content:'★ おすすめ'; position:absolute; top:-14px; left:50%; transform:translateX(-50%); background:var(--primary); color:var(--white); font-size:12px; font-weight:700; padding:4px 16px; border-radius:20px; white-space:nowrap; }
.compare-card h3 { font-size:18px; font-weight:700; color:var(--dark); margin-bottom:16px; text-align:center; }
.compare-row { display:flex; justify-content:space-between; padding:8px 0; border-bottom:1px solid var(--bg-gray); font-size:14px; }
.compare-label { color:var(--sub-text); }
.compare-value { font-weight:700; color:var(--dark); }
.merit-list { max-width:700px; margin:32px auto 0; }
.merit-list li { display:flex; align-items:center; gap:12px; font-size:15px; color:var(--text); margin-bottom:12px; }
.merit-list li::before { content:'✓'; display:flex; align-items:center; justify-content:center; width:28px; height:28px; background:var(--primary); color:var(--white); border-radius:50%; font-size:14px; font-weight:700; flex-shrink:0; }
.faq__item { border-bottom:1px solid var(--border); }
.faq__question { display:flex; align-items:center; justify-content:space-between; width:100%; padding:20px 0; cursor:pointer; background:none; border:none; font:inherit; font-size:16px; font-weight:700; color:var(--dark); text-align:left; }
.faq__question:focus-visible { outline:2px solid var(--primary); outline-offset:2px; border-radius:4px; }
.faq__question::after { content:'+'; font-size:24px; color:var(--primary); transition:transform .3s; }
.faq__item.is-open .faq__question::after { transform:rotate(45deg); }
.faq__answer { max-height:0; overflow:hidden; transition:max-height .3s ease, padding .3s ease; }
.faq__item.is-open .faq__answer { max-height:300px; padding-bottom:20px; }
.faq__answer p { font-size:15px; color:var(--sub-text); line-height:1.8; padding-left:8px; }

/* ============================================
   CASES PAGE
   ============================================ */
.pickup-video { max-width:800px; margin:0 auto 32px; border-radius:8px; overflow:hidden; }
.pickup-video iframe { width:100%; aspect-ratio:16/9; border:none; }
.pickup-detail { display:grid; grid-template-columns:1fr 1.2fr; gap:40px; max-width:800px; margin:0 auto; align-items:center; }
.pickup-detail .placeholder-img { aspect-ratio:4/3; border-radius:8px; }
.pickup-detail h3 { font-size:22px; font-weight:700; color:var(--dark); margin-bottom:12px; }
.pickup-detail .meta { font-size:14px; color:var(--sub-text); margin-bottom:8px; }
.pickup-detail .quote { font-size:15px; color:var(--text); line-height:1.8; font-style:italic; margin:16px 0; padding-left:16px; border-left:3px solid var(--primary); }
.case-card .placeholder-img { height:100%; background:linear-gradient(135deg,#e8eaf6,#c5cae9,#9fa8da); color:#3f51b5; }
.case-card__img { aspect-ratio:16/9; }
.case-card__tags { display:flex; gap:8px; margin-bottom:12px; }
.case-card__ba { display:flex; align-items:center; gap:8px; margin:12px 0; }
.case-card__ba-item { flex:1; }
.case-card__ba-label { font-size:11px; font-weight:700; color:var(--sub-text); margin-bottom:4px; text-transform:uppercase; }
.case-card__ba-label--after { color:var(--primary); }
.case-card__ba-arrow { font-size:20px; color:var(--primary); font-weight:700; }
.case-card h3 { font-size:18px; font-weight:700; color:var(--dark); margin-bottom:8px; }
.case-card .desc { font-size:14px; color:var(--sub-text); margin-bottom:4px; }
.case-card .effect { font-size:15px; font-weight:700; color:var(--primary); margin-bottom:12px; }

/* ============================================
   COMPANY PAGE
   ============================================ */
.info-table { max-width:800px; margin:0 auto; }
.info-row { display:grid; grid-template-columns:160px 1fr; border-bottom:1px solid var(--border); }
.info-row:first-child { border-top:1px solid var(--border); }
.info-label { padding:20px 24px; font-weight:700; color:var(--primary); background:var(--bg-gray); font-size:15px; }
.info-value { padding:20px 24px; font-size:15px; color:var(--text); line-height:1.8; }
.info-pending { display:inline-block; background:#fff3cd; color:#856404; padding:2px 10px; border-radius:4px; font-size:13px; font-weight:700; }
.group-chart { max-width:600px; margin:0 auto; text-align:center; }
.group-parent { background:var(--primary); color:var(--white); padding:20px 40px; border-radius:8px; font-size:18px; font-weight:700; display:inline-block; margin-bottom:16px; }
.group-line { width:2px; height:32px; background:var(--border); margin:0 auto; }
.group-children { display:flex; justify-content:center; gap:24px; margin-top:16px; }
.group-child { border:2px solid var(--border); border-radius:8px; padding:20px 32px; text-align:center; }
.group-child--current { border-color:var(--primary); background:rgba(27,115,64,0.05); }
.group-child h4 { font-size:16px; font-weight:700; color:var(--dark); margin-bottom:4px; }
.group-child p { font-size:13px; color:var(--sub-text); }
.access-grid { display:grid; grid-template-columns:1fr 1fr; gap:48px; }
.access-item h3 { font-size:20px; font-weight:700; color:var(--dark); margin-bottom:16px; padding-bottom:8px; border-bottom:2px solid var(--primary); display:inline-block; }
.access-map { aspect-ratio:16/9; background:var(--bg-gray); border-radius:8px; margin-bottom:16px; overflow:hidden; display:flex; align-items:center; justify-content:center; color:var(--sub-text); font-size:14px; }
.access-info { font-size:14px; color:var(--text); line-height:2; }
.access-info strong { display:block; color:var(--dark); }

/* ============================================
   BLOG PAGE
   ============================================ */
.cat-filter { display:flex; gap:12px; justify-content:center; margin-bottom:48px; flex-wrap:wrap; }
.cat-filter__btn { padding:10px 24px; border:2px solid var(--border); border-radius:24px; font-size:14px; font-weight:700; color:var(--text); background:var(--white); cursor:pointer; transition:all .2s; }
.cat-filter__btn:hover, .cat-filter__btn.is-active { background:var(--primary); color:var(--white); border-color:var(--primary); }
.blog-card { display:block; }
.blog-card__img { aspect-ratio:16/9; overflow:hidden; }
.blog-card__img .placeholder-img { height:100%; background:linear-gradient(135deg,#e8f5e9,#c8e6c9,#a5d6a7); }
.blog-card__img .placeholder-img--tech { background:linear-gradient(135deg,#e8f5e9,#c8e6c9,#a5d6a7); }
.blog-card__img .placeholder-img--info { background:linear-gradient(135deg,#e3f2fd,#bbdefb,#90caf9); }
.blog-card__img .placeholder-img--case { background:linear-gradient(135deg,#fff3e0,#ffe0b2,#ffcc80); }
.blog-card__meta { display:flex; align-items:center; gap:12px; margin-bottom:8px; }
.blog-card__date { font-family:var(--font-en); font-size:13px; color:var(--sub-text); }
.blog-card__cat { font-size:11px; font-weight:700; padding:2px 10px; border-radius:3px; }
.blog-card__cat--tech { background:var(--primary); color:var(--white); }
.blog-card__cat--info { background:var(--dark); color:var(--white); }
.blog-card__cat--case { background:var(--accent); color:var(--white); }
.blog-card h3 { font-size:16px; font-weight:700; color:var(--dark); line-height:1.6; }
.pagination { display:flex; justify-content:center; align-items:center; gap:8px; margin-top:48px; }
.pagination a, .pagination span { display:flex; align-items:center; justify-content:center; width:40px; height:40px; border-radius:4px; font-size:14px; font-family:var(--font-en); font-weight:700; color:var(--text); border:1px solid var(--border); transition:all .2s; }
.pagination a:hover { border-color:var(--primary); color:var(--primary); }
.pagination .is-current { background:var(--primary); color:var(--white); border-color:var(--primary); }
.pagination .prev, .pagination .next { width:auto; padding:0 16px; }

/* ============================================
   CATALOG PAGE
   ============================================ */
.catalog-card { text-align:center; }
.catalog-card__thumb { aspect-ratio:3/4; background:var(--bg-gray); border-radius:8px; display:flex; align-items:center; justify-content:center; margin-bottom:16px; overflow:hidden; }
.catalog-card__thumb img { max-height:100%; object-fit:contain; }
.catalog-card__thumb .pdf-icon { width:48px; height:48px; color:var(--sub-text); }
.catalog-notice { margin-top:40px; padding:24px; background:var(--bg-gray); border-left:4px solid var(--primary); border-radius:0 8px 8px 0; text-align:center; }
.catalog-notice p { font-size:14px; color:var(--text); margin:0; }
.catalog-notice a { color:var(--primary); font-weight:700; text-decoration:underline; }
.catalog-card h3 { font-size:16px; font-weight:700; color:var(--dark); margin-bottom:8px; }
.catalog-card .size { font-size:13px; color:var(--sub-text); margin-bottom:16px; }
.catalog-card .btn-dl {
  display:inline-flex; align-items:center; gap:8px; background:var(--primary); color:var(--white);
  padding:12px 28px; border-radius:4px; font-size:14px; font-weight:700; transition:all .2s;
}
.catalog-card .btn-dl:hover { background:var(--primary-hover); transform:translateY(-2px); }

/* ============================================
   PRIVACY PAGE
   ============================================ */
.privacy-content { max-width:800px; margin:0 auto; }
.privacy-content h3 { font-size:18px; font-weight:700; color:var(--dark); margin:32px 0 12px; padding-left:16px; border-left:3px solid var(--primary); }
.privacy-content p { font-size:15px; color:var(--text); line-height:1.8; margin-bottom:16px; }
.privacy-content ul { padding-left:24px; margin-bottom:16px; }
.privacy-content li { font-size:15px; color:var(--text); line-height:2; list-style:disc; }
.privacy-contact { background:var(--bg-gray); padding:24px; border-radius:8px; margin:16px 0; }
.privacy-contact p { margin:0; }
.privacy-date { font-size:14px; color:var(--sub-text); text-align:right; margin-top:40px; }

/* ============================================
   CONTACT PAGE
   ============================================ */
.phone-section { background:var(--bg-gray); padding:60px 0; }
.phone-section__title { text-align:center; font-size:20px; font-weight:700; color:var(--dark); margin-bottom:32px; }
.phone-grid { display:grid; grid-template-columns:1fr 1fr; gap:32px; max-width:700px; margin:0 auto; }
.phone-card { background:var(--white); border:1px solid var(--border); border-radius:8px; padding:32px; text-align:center; }
.phone-card__label { font-size:14px; font-weight:700; color:var(--sub-text); margin-bottom:8px; }
.phone-card__number { font-family:var(--font-en); font-size:28px; font-weight:700; color:var(--primary); margin-bottom:8px; }
.phone-card__hours { font-size:13px; color:var(--sub-text); }

.step-indicator { display:flex; align-items:center; justify-content:center; gap:0; margin-bottom:48px; }
.step-indicator__item { display:flex; align-items:center; gap:12px; }
.step-indicator__dot { width:36px; height:36px; border-radius:50%; background:var(--border); color:var(--sub-text); font-family:var(--font-en); font-size:14px; font-weight:700; display:flex; align-items:center; justify-content:center; transition:all .3s; }
.step-indicator__dot.is-active { background:var(--primary); color:var(--white); }
.step-indicator__dot.is-done { background:var(--primary); color:var(--white); }
.step-indicator__label { font-size:14px; font-weight:700; color:var(--sub-text); }
.step-indicator__label.is-active { color:var(--dark); }
.step-indicator__line { width:60px; height:2px; background:var(--border); margin:0 20px; }
.step-indicator__line.is-done { background:var(--primary); }

.form-wrapper { max-width:700px; margin:0 auto; }
.form-group { margin-bottom:28px; }
.form-group__label { display:block; font-size:14px; font-weight:700; color:var(--dark); margin-bottom:8px; }
.form-group__label .required { color:#E53935; font-size:12px; margin-left:6px; }
.form-group__input {
  width:100%; padding:12px 16px; border:1px solid var(--border); border-radius:4px;
  font-size:15px; font-family:var(--font-ja); color:var(--text); transition:all .2s; background:var(--white);
}
.form-group__input:focus { outline:none; border-color:var(--primary); box-shadow:0 0 0 3px rgba(27,115,64,0.1); }
.form-group__input::placeholder { color:#BDBDBD; }
.form-group__input--textarea { min-height:180px; resize:vertical; }
.form-group__input--select { appearance:none; background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' fill='%23666'%3E%3Cpath d='M6 8L0 0h12z'/%3E%3C/svg%3E"); background-repeat:no-repeat; background-position:right 16px center; cursor:pointer; }
.form-row { display:grid; grid-template-columns:1fr 1fr; gap:16px; }
.form-group__error { font-size:12px; color:#E53935; margin-top:4px; display:none; }
.form-group.has-error .form-group__input { border-color:#E53935; }
.form-group.has-error .form-group__error { display:block; }
.form-consent { display:flex; align-items:center; gap:10px; margin:32px 0; font-size:14px; color:var(--text); }
.form-consent input[type="checkbox"] { width:18px; height:18px; accent-color:var(--primary); cursor:pointer; }
.form-consent a { color:var(--accent); text-decoration:underline; }
.form-submit { text-align:center; margin-top:40px; }
.form-submit .btn-primary { padding:16px 64px; font-size:16px; cursor:pointer; border:none; }
.form-submit .btn-primary:disabled { opacity:0.5; cursor:not-allowed; transform:none; box-shadow:none; }

.confirm-table { max-width:700px; margin:0 auto; }
.confirm-row { display:grid; grid-template-columns:180px 1fr; border-bottom:1px solid var(--border); }
.confirm-row:first-child { border-top:1px solid var(--border); }
.confirm-label { padding:16px 20px; font-weight:700; color:var(--primary); background:var(--bg-gray); font-size:14px; }
.confirm-value { padding:16px 20px; font-size:15px; color:var(--text); }
.confirm-buttons { display:flex; gap:16px; justify-content:center; margin-top:40px; }
.btn-back { display:inline-block; background:var(--white); color:var(--text); padding:16px 40px; border-radius:4px; font-size:16px; font-weight:700; border:2px solid var(--border); cursor:pointer; transition:all .2s; }
.btn-back:hover { border-color:var(--dark); }
.complete-box { max-width:600px; margin:0 auto; text-align:center; }
.complete-icon { width:80px; height:80px; border-radius:50%; background:var(--primary); color:var(--white); font-size:36px; display:flex; align-items:center; justify-content:center; margin:0 auto 24px; animation:checkPop .5s ease; }
@keyframes checkPop { 0%{transform:scale(0)} 60%{transform:scale(1.2)} 100%{transform:scale(1)} }
.complete-box h3 { font-size:24px; font-weight:700; color:var(--dark); margin-bottom:16px; }
.complete-box p { font-size:15px; color:var(--sub-text); line-height:1.8; margin-bottom:32px; }
.screen { display:none; }
.screen.is-active { display:block; }

/* ============================================
   RESPONSIVE — TABLET (max-width: 1024px)
   ============================================ */
@media (max-width: 1024px) {
  :root { --section-py: 80px; --header-h: 70px; }
  .header__nav { gap: 20px; }
  .header__nav a { font-size: 13px; }
  .header__tel { font-size: 13px; }
  .hero__catch { font-size: 42px; }
  .hero__sub { font-size: 16px; }
  .section-heading__en { font-size: 40px; }
  .about__grid { gap: 40px; }
  .about__text h3 { font-size: 24px; }
  .footer__inner { grid-template-columns: 200px 1fr; gap: 40px; }
  .footer__nav { grid-template-columns: repeat(3, 1fr); }
  .compare-table { gap: 16px; }
  .compare-card { padding: 24px 16px; }
  .access-grid { gap: 32px; }
}

/* ============================================
   RESPONSIVE — SMALL TABLET (max-width: 768px)
   ============================================ */
@media (max-width: 768px) {
  :root { --section-py: 60px; }
  .header__nav { display: none; }
  .header__right { display: none; }
  .hamburger { display: block; }
  .hero { min-height: 600px; }
  .strength__numbers { gap: 32px; }
  .strength__number-value { font-size: 40px; }
  .hero__catch { font-size: 32px; }
  .hero__sub { font-size: 15px; }
  .hero__buttons { flex-direction: column; gap: 12px; }
  .hero__buttons .btn-primary,
  .hero__buttons .btn-secondary { text-align: center; }
  .section-heading { margin-bottom: 40px; }
  .section-heading__en { font-size: 32px; }
  .section-heading__ja { font-size: 16px; }
  .grid-3 { grid-template-columns: 1fr; }
  .grid-2 { grid-template-columns: 1fr; }
  .about__grid { grid-template-columns: 1fr; gap: 32px; }
  .about__text h3 { font-size: 22px; }
  .cases__grid { grid-template-columns: 1fr; }
  .cta-section__lead { font-size: 22px; }
  .cta-section__tel { font-size: 32px; }
  .cta-section__buttons { flex-direction: column; align-items: center; }
  .footer__inner { grid-template-columns: 1fr; gap: 32px; }
  .footer__nav { grid-template-columns: repeat(2, 1fr); }
  .floating-cta { right: 16px; bottom: 16px; }
  .floating-cta a { padding: 12px 20px; font-size: 13px; }
  /* Service page */
  .process-compare { grid-template-columns: 1fr; }
  /* Products page */
  .category-cards { grid-template-columns: 1fr; }
  .custom-section { grid-template-columns: 1fr; }
  /* Flow page */
  .compare-table { grid-template-columns: 1fr; }
  .compare-card--highlight::before { top: -12px; font-size: 11px; padding: 3px 12px; }
  /* Cases page */
  .pickup-detail { grid-template-columns: 1fr; }
  /* Company page */
  .info-row { grid-template-columns: 120px 1fr; }
  .access-grid { grid-template-columns: 1fr; }
  .group-children { flex-direction: column; align-items: center; }
  /* Contact page */
  .phone-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .step-indicator__line { width: 32px; margin: 0 8px; }
  .step-indicator__label { font-size: 12px; }
  .confirm-row { grid-template-columns: 1fr; }
  .confirm-label { padding: 12px 16px; }
  .confirm-value { padding: 12px 16px; }
  /* News */
  .news__item { flex-wrap: wrap; gap: 8px; }
}

/* ============================================
   RESPONSIVE — MOBILE (max-width: 480px)
   ============================================ */
@media (max-width: 480px) {
  .container { padding: 0 16px; }
  .strength__numbers { flex-direction: column; gap: 16px; }
  .strength__number-value { font-size: 36px; }
  .hero__catch { font-size: 26px; }
  .section-heading__en { font-size: 28px; letter-spacing: 0.1em; }
  .strength__card { padding: 32px 20px; }
  .btn-primary, .btn-secondary, .btn-outline { padding: 14px 28px; font-size: 15px; width: 100%; text-align: center; }
  .cta-section__lead { font-size: 20px; }
  .cta-section__tel { font-size: 28px; }
  .phone-card__number { font-size: 24px; }
  .spec-table { font-size: 12px; }
  .spec-table th, .spec-table td { padding: 8px 10px; }
}