/* ===== Reset & Base ===== */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;font-size:16px}
body{font-family:'Noto Sans JP','Inter',sans-serif;color:#333;background:#fff;line-height:1.8;overflow-x:hidden}
a{color:inherit;text-decoration:none;transition:opacity .3s}
a:hover{opacity:.7}
img{max-width:100%;height:auto;display:block}
ul{list-style:none}
table{border-collapse:collapse;width:100%}

/* ===== Utility ===== */
.container{max-width:1100px;margin:0 auto;padding:0 24px}
.section{padding:100px 0}
.section--gray{background:#f6f8fa}
.sp-only{display:none}

.section__label{
  display:block;font-family:'Inter',sans-serif;font-size:.8rem;font-weight:600;
  letter-spacing:.15em;text-transform:uppercase;color:#4a9ec5;margin-bottom:12px;
}
.section__label--center{text-align:center}
.section__title{font-size:clamp(1.6rem,4vw,2.4rem);font-weight:700;line-height:1.4;margin-bottom:20px}
.section__title--center{text-align:center}
.section__subtitle{text-align:center;color:#666;max-width:560px;margin:0 auto 50px;font-size:.95rem}

/* ===== Buttons ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  padding:14px 36px;border-radius:6px;font-size:.95rem;font-weight:500;
  transition:all .3s ease;cursor:pointer;border:2px solid transparent;
}
.btn--primary{background:#4a9ec5;color:#fff;border-color:#4a9ec5}
.btn--primary:hover{background:#3a8ab0;border-color:#3a8ab0;opacity:1}
.btn--outline{background:transparent;color:#4a9ec5;border-color:#4a9ec5}
.btn--outline:hover{background:#4a9ec5;color:#fff;opacity:1}
.btn--large{padding:18px 48px;font-size:1rem}

/* ===== Animations ===== */
.fade-up{
  opacity:0;transform:translateY(30px);
  transition:opacity .7s ease,transform .7s ease;
  transition-delay:var(--delay,0s);
}
.fade-up.is-visible{opacity:1;transform:translateY(0)}

/* ===== Header ===== */
.header{
  position:fixed;top:0;left:0;width:100%;z-index:100;
  background:rgba(255,255,255,.92);backdrop-filter:blur(10px);
  border-bottom:1px solid rgba(0,0,0,.06);
  transition:box-shadow .3s;
}
.header.is-scrolled{box-shadow:0 2px 20px rgba(0,0,0,.06)}
.header__inner{
  display:flex;align-items:center;justify-content:space-between;
  max-width:1200px;margin:0 auto;padding:0 24px;height:72px;
}
.header__logo{display:flex;align-items:baseline;gap:6px}
.header__logo-main{
  font-family:'Inter',sans-serif;font-size:1.3rem;font-weight:700;
  letter-spacing:.05em;color:#222;
}
.header__logo-sub{font-size:.85rem;font-weight:500;color:#4a9ec5}
.header__nav{display:flex;align-items:center;gap:8px}
.header__nav-list{display:flex;gap:28px}
.header__nav-list a{font-size:.85rem;font-weight:500;color:#555;transition:color .3s}
.header__nav-list a:hover{color:#4a9ec5;opacity:1}
.header__actions{display:flex;align-items:center;gap:14px;margin-left:24px}
.header__tel{
  display:flex;align-items:center;gap:8px;
  color:#2a7ea8;line-height:1.2;
}
.header__tel:hover{opacity:.7}
.header__tel-text{display:flex;flex-direction:column}
.header__tel-label{font-size:.65rem;color:#888;letter-spacing:.05em}
.header__tel-number{font-family:'Inter',sans-serif;font-size:1.05rem;font-weight:700;color:#2a7ea8;letter-spacing:.02em}
.header__cta{
  padding:10px 22px;border-radius:6px;
  background:#4a9ec5;color:#fff;font-size:.85rem;font-weight:500;
}
.header__cta:hover{background:#3a8ab0;opacity:1}
.header__burger{display:none;background:none;border:none;cursor:pointer;width:28px;height:20px;position:relative}
.header__burger span{
  display:block;width:100%;height:2px;background:#333;
  position:absolute;left:0;transition:all .3s;
}
.header__burger span:nth-child(1){top:0}
.header__burger span:nth-child(2){top:50%;transform:translateY(-50%)}
.header__burger span:nth-child(3){bottom:0}

/* ===== Hero ===== */
.hero{
  position:relative;min-height:100vh;display:flex;align-items:center;
  background:url('../images/hero-bg.jpg') center center/cover no-repeat,
             linear-gradient(135deg,#e8f4f8 0%,#d1e8f0 30%,#f0f4f8 100%);
  overflow:hidden;
}
.hero::before{
  content:'';position:absolute;inset:0;
  background:linear-gradient(100deg,
    rgba(255,255,255,.92) 0%,
    rgba(255,255,255,.82) 40%,
    rgba(255,255,255,.35) 75%,
    rgba(255,255,255,.05) 100%);
  pointer-events:none;
}
.hero::after{
  content:'BISOU';position:absolute;bottom:5%;right:5%;
  font-family:'Inter',sans-serif;font-size:clamp(5rem,15vw,12rem);
  font-weight:900;color:rgba(74,158,197,.04);letter-spacing:.05em;
  pointer-events:none;line-height:1;
}
.hero__content{
  position:relative;z-index:2;max-width:1100px;margin:0 auto;
  padding:120px 24px 80px;
}
.hero__en{
  font-family:'Inter',sans-serif;font-size:clamp(.75rem,1.5vw,1rem);
  font-weight:600;letter-spacing:.2em;text-transform:uppercase;
  color:#4a9ec5;margin-bottom:16px;
}
.hero__title{
  font-size:clamp(2.2rem,6vw,3.8rem);font-weight:900;
  line-height:1.3;color:#1a2a3a;margin-bottom:24px;
}
.hero__lead{font-size:clamp(.95rem,1.8vw,1.15rem);color:#556;line-height:1.9;margin-bottom:40px}
.hero__actions{display:flex;gap:16px;flex-wrap:wrap}

.hero__scroll{
  position:absolute;bottom:40px;left:50%;transform:translateX(-50%);
  display:flex;flex-direction:column;align-items:center;gap:8px;
}
.hero__scroll span{font-family:'Inter',sans-serif;font-size:.7rem;letter-spacing:.15em;color:#888}
.hero__scroll-line{width:1px;height:40px;background:#bbb;position:relative;overflow:hidden}
.hero__scroll-line::after{
  content:'';position:absolute;top:-100%;left:0;width:100%;height:100%;
  background:#4a9ec5;animation:scrollLine 2s ease infinite;
}
@keyframes scrollLine{
  0%{top:-100%}
  50%{top:0}
  100%{top:100%}
}

/* ===== About ===== */
.about__grid{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
.about__image-wrapper{
  border-radius:12px;overflow:hidden;
  box-shadow:0 20px 60px rgba(0,0,0,.08);
}
.about__image-img{
  width:100%;aspect-ratio:4/3;
  object-fit:cover;display:block;
}
.about__desc{color:#555;margin-bottom:20px;font-size:.95rem}
.about__numbers{display:flex;gap:40px;margin-top:32px;padding-top:32px;border-top:1px solid #e8e8e8}
.about__number{text-align:center}
.about__number-value{
  font-family:'Inter',sans-serif;font-size:2.2rem;font-weight:700;color:#4a9ec5;
}
.about__number-unit{font-size:.9rem;font-weight:700;color:#4a9ec5}
.about__number-label{display:block;font-size:.75rem;color:#888;margin-top:4px}

/* ===== About Promises (3つの約束) ===== */
.about__promises{
  margin-top:80px;padding:48px 56px;
  background:#f8fafc;border-radius:16px;
  border-left:4px solid #4a9ec5;
}
.about__promises-title{
  font-size:1.3rem;font-weight:700;color:#1a2a3a;
  margin-bottom:24px;letter-spacing:.04em;
}
.about__promises-list{
  list-style:none;padding:0;margin:0 0 28px;
}
.about__promises-list li{
  font-size:1rem;color:#333;line-height:1.9;
  padding:10px 0 10px 32px;position:relative;
  border-bottom:1px dashed #d8e2eb;
}
.about__promises-list li:last-child{border-bottom:none}
.about__promises-list li::before{
  content:"";position:absolute;left:0;top:18px;
  width:18px;height:18px;
  background:#4a9ec5;border-radius:50%;
}
.about__promises-list li::after{
  content:"✓";position:absolute;left:4px;top:13px;
  color:#fff;font-size:.8rem;font-weight:700;
}
.about__promises-note{
  font-size:.95rem;color:#555;line-height:1.9;
  font-style:italic;text-align:center;
  padding-top:8px;
}

/* ===== Hero「得意」強調コピー ===== */
.hero__lead-em{
  display:inline-block;margin-top:14px;
  font-size:1.05rem;color:#2a7ea8;letter-spacing:.04em;
}

/* ===== Featured Service (高圧洗浄 専用セクション) ===== */
.featured{
  background:linear-gradient(180deg,#fff 0%,#eaf3f8 100%);
  position:relative;overflow:hidden;
}
.featured::before{
  content:"WASH";position:absolute;
  bottom:-40px;right:-30px;
  font-family:'Inter',sans-serif;font-size:14rem;font-weight:900;
  color:rgba(74,158,197,.06);letter-spacing:.05em;
  pointer-events:none;line-height:1;
}
.featured__inner{
  display:grid;grid-template-columns:1.1fr 1fr;
  gap:64px;align-items:center;position:relative;z-index:1;
}
.featured__tag{
  display:inline-block;
  font-family:'Inter',sans-serif;font-size:.8rem;font-weight:600;
  letter-spacing:.2em;text-transform:uppercase;
  color:#fff;background:#4a9ec5;
  padding:6px 16px;border-radius:999px;
  margin-bottom:20px;
}
.featured__title{
  font-size:2.6rem;font-weight:700;line-height:1.3;
  color:#1a2a3a;margin-bottom:24px;letter-spacing:.02em;
}
.featured__title strong{
  color:#2a7ea8;font-weight:900;
  position:relative;display:inline-block;
}
.featured__title strong::after{
  content:"";position:absolute;
  left:0;bottom:4px;width:100%;height:8px;
  background:rgba(74,158,197,.18);z-index:-1;
}
.featured__lead{
  font-size:.95rem;line-height:1.9;color:#444;
  margin-bottom:28px;
}
.featured__points{
  list-style:none;padding:0;margin:0 0 32px;
}
.featured__points li{
  position:relative;padding:10px 0 10px 28px;
  font-size:.9rem;color:#333;line-height:1.7;
}
.featured__points li::before{
  content:"";position:absolute;
  left:0;top:18px;width:16px;height:2px;background:#4a9ec5;
}
.featured__cta{margin-top:8px}

/* ===== Service ===== */
.service__grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.service__card{
  position:relative;
  background:#fff;border-radius:12px;padding:36px 28px;
  box-shadow:0 4px 24px rgba(0,0,0,.04);
  transition:transform .3s,box-shadow .3s;
}
.service__card--featured{
  border:2px solid #4a9ec5;
  box-shadow:0 8px 32px rgba(74,158,197,.15);
}
.service__card-badge{
  position:absolute;top:-10px;right:20px;
  background:#4a9ec5;color:#fff;
  padding:4px 14px;border-radius:999px;
  font-size:.75rem;font-weight:700;letter-spacing:.1em;
}
.service__card:hover{transform:translateY(-4px);box-shadow:0 12px 40px rgba(0,0,0,.08)}
.service__card-icon{width:48px;height:48px;color:#4a9ec5;margin-bottom:20px}
.service__card-title{font-size:1.1rem;font-weight:700;margin-bottom:12px}
.service__card-text{font-size:.85rem;color:#666;line-height:1.8}
.service__card-list{margin-top:14px;padding:0;list-style:none;font-size:.8rem;color:#555;line-height:1.9}
.service__card-list li{position:relative;padding-left:14px}
.service__card-list li::before{content:"";position:absolute;left:0;top:.7em;width:6px;height:6px;background:#4a9ec5;border-radius:50%}

/* ===== Strong emphasis (リベ大式・本文中の太字) ===== */
strong{font-weight:700;color:#2a7ea8}
.cta strong{color:#7bb8d6}

/* ===== Concerns (お悩みセクション) ===== */
.concerns{background:linear-gradient(180deg,#fff 0%,#f1f7fa 100%)}
.concerns__list{
  list-style:none;padding:0;margin:48px auto 40px;
  max-width:760px;display:grid;gap:14px;
}
.concerns__list li{
  background:#fff;border-radius:10px;
  padding:20px 24px 20px 60px;position:relative;
  font-size:.95rem;color:#333;line-height:1.7;
  box-shadow:0 2px 12px rgba(0,0,0,.04);
  border:1px solid #e5edf3;
  transition:transform .2s,box-shadow .2s;
}
.concerns__list li:hover{
  transform:translateY(-2px);
  box-shadow:0 6px 20px rgba(74,158,197,.12);
}
.concerns__list li::before{
  content:"";position:absolute;left:20px;top:50%;transform:translateY(-50%);
  width:24px;height:24px;
  background:#4a9ec5;border-radius:6px;
}
.concerns__list li::after{
  content:"✓";position:absolute;left:26px;top:50%;transform:translateY(-55%);
  color:#fff;font-size:1rem;font-weight:700;
}
.concerns__cta{text-align:center;margin-top:8px}

/* ===== Works ===== */
.works__grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.works__item{border-radius:12px;overflow:hidden;background:#fff;box-shadow:0 4px 20px rgba(0,0,0,.05);transition:transform .3s}
.works__item:hover{transform:translateY(-4px)}
.works__image{overflow:hidden}
.works__image-img{
  width:100%;aspect-ratio:16/10;
  object-fit:cover;display:block;
  transition:transform .5s ease;
}
.works__item:hover .works__image-img{transform:scale(1.05)}
.works__info{padding:20px 24px}
.works__tag{
  display:inline-block;padding:4px 12px;border-radius:4px;
  background:#e8f4f8;color:#4a9ec5;font-size:.75rem;font-weight:600;margin-bottom:8px;
}
.works__name{font-size:.95rem;font-weight:700;margin-bottom:6px}
.works__detail{font-size:.8rem;color:#888}
.works__more{text-align:center;margin-top:40px}

/* ===== Voice ===== */
.voice__grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.voice__card{background:#fff;border-radius:12px;padding:32px;box-shadow:0 4px 20px rgba(0,0,0,.04)}
.voice__stars{color:#f5a623;font-size:1rem;margin-bottom:16px;letter-spacing:2px}
.voice__text{font-size:.9rem;color:#555;line-height:1.9;margin-bottom:20px}
.voice__name{font-size:.8rem;color:#888;font-weight:500}

/* ===== Company ===== */
.company__table-wrapper{max-width:700px;margin:0 auto}
.company__table th,
.company__table td{
  padding:18px 20px;border-bottom:1px solid #e8e8e8;font-size:.9rem;text-align:left;
}
.company__table th{
  width:140px;font-weight:600;color:#333;background:#f9fafb;white-space:nowrap;
}
.company__table td{color:#555}
.company__table td a{color:#4a9ec5;font-weight:500}

/* ===== CTA / Contact ===== */
.cta{
  position:relative;padding:100px 0;
  background:linear-gradient(135deg,#1a2a3a 0%,#2a4a5a 100%);
  color:#fff;
}
.cta__content{text-align:center}
.cta__en{
  font-family:'Inter',sans-serif;font-size:.8rem;font-weight:600;
  letter-spacing:.2em;text-transform:uppercase;color:rgba(255,255,255,.5);
  margin-bottom:12px;display:block;
}
.cta__title{font-size:clamp(1.6rem,4vw,2.2rem);font-weight:700;margin-bottom:16px;line-height:1.5}
.cta__text{color:rgba(255,255,255,.7);margin-bottom:32px;font-size:.95rem}
.cta__actions{margin-bottom:48px}
.cta__phone{
  display:inline-flex;align-items:center;gap:10px;
  font-family:'Inter',sans-serif;font-size:1.8rem;font-weight:700;color:#fff;
}
.cta__phone:hover{opacity:.8}
.cta__phone svg{flex-shrink:0}
.cta__phone-note{display:block;font-size:.8rem;color:rgba(255,255,255,.5);margin-top:6px}

.cta__form-wrapper{max-width:700px;margin:0 auto;text-align:left}
.cta__form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-bottom:16px}
.cta__form-group{display:flex;flex-direction:column}
.cta__form-group--full{margin-bottom:16px}
.cta__form-group label{font-size:.85rem;font-weight:500;margin-bottom:6px;color:rgba(255,255,255,.8)}
.required{color:#e74c3c;font-size:.75rem;margin-left:4px}
.cta__form-group input,
.cta__form-group select,
.cta__form-group textarea{
  padding:12px 16px;border-radius:6px;border:1px solid rgba(255,255,255,.2);
  background:rgba(255,255,255,.08);color:#fff;font-size:.9rem;
  font-family:'Noto Sans JP',sans-serif;transition:border-color .3s;
}
.cta__form-group input::placeholder,
.cta__form-group textarea::placeholder{color:rgba(255,255,255,.3)}
.cta__form-group input:focus,
.cta__form-group select:focus,
.cta__form-group textarea:focus{outline:none;border-color:#4a9ec5}
.cta__form-group select{appearance:none;background-image:url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1L6 6L11 1' stroke='white' stroke-width='1.5'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 14px center}
.cta__form-group select option{color:#333;background:#fff}
.cta__form-submit{text-align:center;margin-top:24px}

/* ===== Footer ===== */
.footer{background:#111;color:#aaa;padding:60px 0 30px}
.footer__inner{display:flex;justify-content:space-between;align-items:flex-start;padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,.1)}
.footer__logo{display:flex;align-items:baseline;gap:6px;margin-bottom:16px}
.footer__logo-main{font-family:'Inter',sans-serif;font-size:1.1rem;font-weight:700;color:#fff}
.footer__logo-sub{font-size:.8rem;color:#4a9ec5}
.footer__address{font-size:.8rem;margin-bottom:4px}
.footer__tel{font-size:.8rem}
.footer__tel a{color:#4a9ec5}
.footer__nav ul{display:flex;flex-direction:column;gap:12px}
.footer__nav a{font-size:.8rem;transition:color .3s}
.footer__nav a:hover{color:#4a9ec5;opacity:1}
.footer__bottom{text-align:center;padding-top:30px}
.footer__bottom p{font-size:.75rem;color:#666}

/* ===== Placeholder Images ===== */
.placeholder-img{
  background:linear-gradient(135deg,#e0eef5,#d4e5ee);
  display:flex;align-items:center;justify-content:center;
  color:#8ab4c8;font-size:.85rem;font-weight:500;
}
.placeholder-img--about{aspect-ratio:4/3;border-radius:12px}
.placeholder-img--work{aspect-ratio:16/10}
.placeholder-img--featured{
  aspect-ratio:4/3;border-radius:16px;
  background:linear-gradient(135deg,#2a7ea8,#4a9ec5);
  color:rgba(255,255,255,.9);font-size:1rem;
  box-shadow:0 16px 48px rgba(42,126,168,.25);
}
.featured__image-img{
  width:100%;aspect-ratio:4/3;
  object-fit:cover;border-radius:16px;
  box-shadow:0 16px 48px rgba(42,126,168,.25);
  display:block;
}

/* ===== Reasons (選ばれる5つの理由) ===== */
.reasons__list{
  list-style:none;padding:0;margin:48px auto 40px;
  max-width:920px;display:grid;gap:20px;
}
.reasons__item{
  display:grid;grid-template-columns:80px 1fr;gap:24px;align-items:start;
  background:#fff;border-radius:12px;padding:28px 32px;
  box-shadow:0 4px 16px rgba(0,0,0,.04);
  border-left:4px solid #4a9ec5;
}
.reasons__num{
  font-family:'Inter',sans-serif;font-size:2.4rem;font-weight:900;
  color:#4a9ec5;line-height:1;letter-spacing:.02em;
}
.reasons__heading{font-size:1.1rem;font-weight:700;line-height:1.5;margin-bottom:10px;color:#1a2a3a}
.reasons__text{font-size:.9rem;line-height:1.8;color:#555}
.reasons__cta{
  display:flex;justify-content:center;gap:16px;margin-top:48px;flex-wrap:wrap;
}

/* ===== Flow (4ステップ) ===== */
.flow__list{
  list-style:none;padding:0;margin:56px auto 40px;
  max-width:1100px;
  display:grid;grid-template-columns:repeat(4,1fr);gap:20px;position:relative;
}
.flow__list::before{
  content:"";position:absolute;top:48px;left:12.5%;width:75%;height:2px;
  background:repeating-linear-gradient(90deg,#cdd9e0 0 8px,transparent 8px 16px);
  z-index:0;
}
.flow__item{
  position:relative;z-index:1;background:#fff;
  border-radius:12px;padding:32px 24px;text-align:center;
  box-shadow:0 4px 20px rgba(0,0,0,.05);
}
.flow__step{
  display:inline-block;font-family:'Inter',sans-serif;font-size:.7rem;
  font-weight:700;letter-spacing:.15em;
  background:#4a9ec5;color:#fff;padding:6px 14px;border-radius:999px;
  margin-bottom:16px;
}
.flow__heading{font-size:1.1rem;font-weight:700;margin-bottom:12px;color:#1a2a3a}
.flow__text{font-size:.85rem;line-height:1.8;color:#555}
.flow__cta{
  margin-top:48px;text-align:center;
  padding:32px;background:#f8fafc;border-radius:12px;
}
.flow__cta-text{font-size:.95rem;color:#555;margin-bottom:20px}
.flow__cta-buttons{display:flex;justify-content:center;gap:16px;flex-wrap:wrap}

/* ===== FAQ ===== */
.faq__list{
  max-width:860px;margin:48px auto 0;display:grid;gap:14px;
}
.faq__item{
  background:#fff;border-radius:10px;
  border:1px solid #e5edf3;overflow:hidden;
  transition:box-shadow .2s;
}
.faq__item[open]{box-shadow:0 6px 20px rgba(0,0,0,.06)}
.faq__question{
  cursor:pointer;list-style:none;
  padding:20px 56px 20px 24px;position:relative;
  font-size:.95rem;font-weight:700;color:#1a2a3a;
  display:flex;gap:14px;align-items:center;
}
.faq__question::-webkit-details-marker{display:none}
.faq__question::after{
  content:"+";position:absolute;right:24px;top:50%;transform:translateY(-50%);
  font-size:1.4rem;font-weight:300;color:#4a9ec5;transition:transform .2s;
}
.faq__item[open] .faq__question::after{content:"−"}
.faq__q,.faq__a{
  display:inline-flex;align-items:center;justify-content:center;
  width:30px;height:30px;border-radius:50%;flex-shrink:0;
  font-family:'Inter',sans-serif;font-size:.85rem;font-weight:700;
}
.faq__q{background:#4a9ec5;color:#fff}
.faq__a{background:#f0f6fa;color:#2a7ea8}
.faq__answer{
  padding:0 24px 24px;display:flex;gap:14px;align-items:flex-start;
}
.faq__answer p{font-size:.9rem;line-height:1.9;color:#444;flex:1}

/* ===== Floating CTA (mobile sticky bottom) ===== */
.floating-cta{
  position:fixed;bottom:0;left:0;right:0;z-index:90;
  display:none;grid-template-columns:1fr 1fr;gap:0;
  box-shadow:0 -4px 20px rgba(0,0,0,.15);
}
.floating-cta__btn{
  display:flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 8px;color:#fff;text-align:center;line-height:1.2;
}
.floating-cta__btn small{display:block;font-size:.65rem;font-weight:400;opacity:.85;margin-bottom:2px}
.floating-cta__btn span{font-size:.85rem;font-weight:700}
.floating-cta__btn--tel{background:#2a7ea8}
.floating-cta__btn--form{background:#4a9ec5}

/* ===== Button variations ===== */
.btn--tel{display:inline-flex;align-items:center;gap:8px}

/* ===== Responsive ===== */
@media(max-width:900px){
  .sp-only{display:inline}
  .header__nav{
    position:fixed;top:0;right:-100%;width:80%;max-width:360px;height:100vh;
    background:#fff;flex-direction:column;align-items:flex-start;
    padding:100px 40px 40px;gap:0;
    transition:right .4s cubic-bezier(.4,0,.2,1);
    box-shadow:-10px 0 40px rgba(0,0,0,.1);
  }
  .header__nav.is-open{right:0}
  .header__nav-list{flex-direction:column;gap:24px;margin-bottom:32px}
  .header__nav-list a{font-size:1rem}
  .header__burger{display:block}
  .header__burger.is-open span:nth-child(1){top:50%;transform:translateY(-50%) rotate(45deg)}
  .header__burger.is-open span:nth-child(2){opacity:0}
  .header__burger.is-open span:nth-child(3){bottom:50%;transform:translateY(50%) rotate(-45deg)}

  .about__grid{grid-template-columns:1fr;gap:40px}
  .featured__inner{grid-template-columns:1fr;gap:40px}
  .featured__title{font-size:2rem}
  .featured::before{font-size:8rem;bottom:-20px;right:-10px}
  .service__grid{grid-template-columns:repeat(2,1fr)}
  .works__grid{grid-template-columns:1fr}
  .reasons__item{grid-template-columns:60px 1fr;gap:16px;padding:22px 20px}
  .reasons__num{font-size:1.8rem}
  .reasons__heading{font-size:1rem}
  .reasons__cta{flex-direction:column;align-items:stretch;gap:12px}
  .reasons__cta .btn{justify-content:center}
  .flow__list{grid-template-columns:1fr 1fr;gap:14px}
  .flow__list::before{display:none}
  .flow__cta-buttons{flex-direction:column;align-items:stretch;gap:12px}
  .flow__cta-buttons .btn{justify-content:center}
  .header__actions{display:none}
  .header__nav .header__actions{display:flex;flex-direction:column;width:100%;gap:16px;margin:0;align-items:flex-start}
  .header__nav .header__tel{flex-direction:row;align-items:center}
  .header__nav .header__cta{padding:12px 24px;width:auto}
  .floating-cta{display:grid}
  body{padding-bottom:72px}
  .voice__grid{grid-template-columns:1fr}
  .cta__form-row{grid-template-columns:1fr}
  .footer__inner{flex-direction:column;gap:32px}
  .about__promises{padding:32px 24px;margin-top:56px}
  .about__promises-title{font-size:1.1rem}
  .featured__title{font-size:1.9rem}
  .hero__title{font-size:clamp(2rem,7vw,3rem)}
  .section__title{font-size:clamp(1.4rem,4.5vw,2.2rem)}
  .concerns__list li{padding:16px 18px 16px 52px;font-size:.88rem}
  .concerns__list li::before{left:18px;width:22px;height:22px}
  .concerns__list li::after{left:24px;font-size:.95rem}
}

@media(max-width:600px){
  .section{padding:70px 0}
  .hero__content{padding:100px 20px 60px}
  .hero__title{font-size:clamp(1.7rem,9vw,2.4rem)}
  .service__grid{grid-template-columns:1fr}
  .about__numbers{flex-direction:column;gap:20px;align-items:flex-start}
  .company__table th{width:100px;padding:14px 12px}
  .company__table td{padding:14px 12px}
  .flow__list{grid-template-columns:1fr;gap:14px}
  .flow__item{padding:24px 20px}
  .reasons__item{grid-template-columns:50px 1fr;gap:12px;padding:20px 18px}
  .reasons__num{font-size:1.5rem}
  .reasons__heading{font-size:.95rem}
  .reasons__text{font-size:.85rem}
  .featured__title{font-size:1.7rem}
  .featured__points li{font-size:.85rem}
  .faq__question{font-size:.88rem;padding:18px 44px 18px 18px;gap:10px}
  .faq__question::after{right:18px;font-size:1.25rem}
  .faq__q,.faq__a{width:26px;height:26px;font-size:.75rem}
  .faq__answer{padding:0 18px 20px;gap:10px}
  .faq__answer p{font-size:.85rem}
  .floating-cta__btn{padding:12px 4px}
  .floating-cta__btn small{font-size:.6rem}
  .floating-cta__btn span{font-size:.78rem}
  .floating-cta__btn svg{width:18px;height:18px}
  .header__logo-main{font-size:1.05rem;letter-spacing:.05em}
  .header__logo-sub{font-size:.75rem}
  .header__inner{padding:0 16px}
  .cta__form-wrapper{padding:0 4px}
  .container{padding:0 18px}
}