/* =============================================
   RESET & ROOT
============================================= */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;font-size:16px;overflow-x:hidden}
body{font-family:'Noto Sans JP',sans-serif;color:#1e2d4a;background:#fff;overflow-x:hidden;line-height:1.85;-webkit-font-smoothing:antialiased;max-width:100vw}
img{max-width:100%;display:block}
a{text-decoration:none;color:inherit}
ul,ol{list-style:none}
strong{font-weight:700}

/* PC：フォント20px */
@media(min-width:901px){
  html{font-size:20px}
}

/* =============================================
   VARIABLES
============================================= */
:root{
  --blue:#77acff;
  --navy:#1a4fa8;
  --cyan:#00ACC1;
  --green:#2ECC71;
  --pale:#deeaff;
  --foam:#f3f7ff;
  --ink:#1e2d4a;
  --ink2:#4a5a78;
  --ink3:#7a8aaa;
  --border:#e0e8f5;
  --white:#fff;
  --photo:#f1f1f1;
  --r:8px;
}

/* =============================================
   WATER CANVAS
============================================= */
#wc{position:fixed;top:0;left:0;width:100vw;height:100vh;z-index:0;pointer-events:none;opacity:.35}

/* =============================================
   LAYOUT
============================================= */
.container{max-width:1280px;margin:0 auto;padding:0 5vw;position:relative;z-index:1}
.section{padding:120px 0;position:relative;z-index:1}
.section--gray{background:#f8f9fc}
.section--navy{background:var(--navy)}

/* =============================================
   TYPOGRAPHY
============================================= */
.c-section-tag{display:block;font-size:.75rem;font-weight:700;letter-spacing:.25em;text-transform:uppercase;color:var(--cyan);margin-bottom:.6rem}

.c-heading-main{text-align:center;margin-bottom:72px}
.c-heading-main__sub{font-size:1rem;font-weight:500;color:var(--ink2);display:block;margin-bottom:.5rem}
.c-heading-main__title{font-family:'Noto Serif JP',serif;font-size:clamp(1.5rem,3.5vw,2.4rem);font-weight:700;line-height:1.35;color:var(--ink)}
.c-heading-main__title .hl{position:relative;display:inline}
.c-heading-main__title .hl::after{content:'';position:absolute;left:0;bottom:-2px;width:100%;height:3px;background:var(--blue);border-radius:2px}

.c-heading{display:flex;align-items:center;gap:1.8rem;margin-bottom:56px}
.c-heading__img{width:80px;height:80px;background:var(--photo);border-radius:50%;flex-shrink:0;display:flex;align-items:center;justify-content:center}
.c-heading__img svg{stroke:#b0b0b0;fill:none;width:32px;height:32px}
.c-heading__sub{font-size:.9rem;color:var(--ink2);margin-bottom:.3rem}
.c-heading__title{font-family:'Noto Serif JP',serif;font-size:clamp(1.2rem,2.5vw,1.75rem);font-weight:700;line-height:1.35;color:var(--ink)}

/* =============================================
   PHOTO PLACEHOLDER
============================================= */
.ph{background:var(--photo);display:flex;align-items:center;justify-content:center;overflow:hidden;position:relative;opacity:0;transform:translateY(20px) scale(1.03);transition:opacity .9s cubic-bezier(.22,.61,.36,1),transform .9s cubic-bezier(.22,.61,.36,1)}
.ph.vs{opacity:1;transform:none}
.ph-inner{display:flex;flex-direction:column;align-items:center;gap:.5rem;z-index:1}
.ph-icon{width:40px;height:40px;border:1.5px solid #c5c5c5;border-radius:8px;display:flex;align-items:center;justify-content:center}
.ph-icon svg{stroke:#b5b5b5;fill:none;width:20px;height:20px;stroke-width:1.5}
.ph-label{font-size:.7rem;color:#b5b5b5;letter-spacing:.12em;text-transform:uppercase}

/* =============================================
   BUTTONS
============================================= */
.c-btn{display:inline-flex;align-items:center;justify-content:center;gap:.6rem;font-family:'Noto Sans JP',sans-serif;font-weight:700;font-size:1rem;letter-spacing:.06em;padding:.9rem 2.2rem;border-radius:4px;border:2px solid transparent;cursor:pointer;transition:all .22s ease;text-decoration:none}
.c-btn--primary{background:var(--navy);color:#fff;border-color:var(--navy);box-shadow:0 4px 20px rgba(26,79,168,.22)}
.c-btn--primary:hover{background:var(--blue);border-color:var(--blue);color:var(--navy);transform:translateY(-2px)}
.c-btn--secondary{background:#fff;color:var(--navy);border-color:var(--navy)}
.c-btn--secondary:hover{background:var(--navy);color:#fff;transform:translateY(-2px)}
.c-btn--large{font-size:1.1rem;padding:1.05rem 2.6rem}
.c-btn svg{width:18px;height:18px;stroke:currentColor;fill:none}

/* =============================================
   NAVIGATION
============================================= */
#header{position:fixed;top:0;left:0;right:0;z-index:200;background:rgba(255,255,255,.95);backdrop-filter:blur(12px);border-bottom:1px solid var(--border);transition:box-shadow .3s}
#header.scrolled{box-shadow:0 2px 20px rgba(26,79,168,.08)}
.header-inner{max-width:1280px;margin:0 auto;padding:0 5vw;display:flex;align-items:center;justify-content:space-between;height:64px}
.header-logo{font-family:'Noto Serif JP',serif;font-size:1.3rem;font-weight:700;color:var(--navy);letter-spacing:.12em}
.header-logo span{color:var(--blue)}
.header-nav{display:flex;gap:1.8rem;align-items:center}
.header-nav a{font-size:.85rem;font-weight:500;color:var(--ink2);letter-spacing:.04em;transition:color .2s}
.header-nav a:hover{color:var(--navy)}
.header-nav .nav-cta{background:var(--navy);color:#fff;padding:.45rem 1.2rem;border-radius:4px;font-size:.82rem;font-weight:700;transition:background .2s,transform .2s}
.header-nav .nav-cta:hover{background:var(--blue);color:var(--navy);transform:translateY(-1px)}

/* =============================================
   HAMBURGER (SP)
============================================= */
.burger{display:none;flex-direction:column;justify-content:center;align-items:center;gap:5px;width:40px;height:40px;background:none;border:none;cursor:pointer;padding:4px;z-index:250}
.burger span{display:block;width:24px;height:2px;background:var(--navy);border-radius:2px;transition:transform .3s,opacity .3s}
.burger.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.burger.open span:nth-child(2){opacity:0}
.burger.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.sp-nav-overlay{display:none;position:fixed;inset:0;z-index:240;background:rgba(0,0,0,.45)}
.sp-nav-overlay.open{display:block}
.sp-nav{position:absolute;top:0;right:0;bottom:0;width:min(320px,85vw);background:#fff;padding:72px 24px 32px;display:flex;flex-direction:column;box-shadow:-4px 0 24px rgba(0,0,0,.12);overflow-y:auto}
.sp-nav-close{position:absolute;top:16px;right:16px;background:none;border:none;font-size:1.4rem;color:var(--ink2);cursor:pointer;padding:8px}
.sp-nav-link{display:block;padding:1rem 0;font-size:1rem;font-weight:500;color:var(--ink);border-bottom:1px solid var(--border)}
.sp-nav-link:hover{color:var(--navy)}
.sp-nav-cta{display:block;margin-top:1.5rem;background:var(--navy);color:#fff;padding:1rem;border-radius:4px;font-size:1rem;font-weight:700;text-align:center}

/* =============================================
   FIXED CTA
============================================= */
.c-fixed-cta{position:fixed;bottom:1.2rem;left:50%;transform:translateX(-50%);z-index:300;background:var(--navy);color:#fff;display:flex;align-items:center;gap:.8rem;padding:.8rem 2rem;border-radius:4px;font-size:.92rem;font-weight:700;letter-spacing:.06em;box-shadow:0 6px 28px rgba(26,79,168,.30);cursor:pointer;border:none;font-family:'Noto Sans JP',sans-serif;transition:background .2s,transform .2s;white-space:nowrap;animation:fuSlide .5s 2.5s both}
.c-fixed-cta:hover{background:var(--blue);color:var(--navy);transform:translateX(-50%) translateY(-2px)}
.c-fixed-cta .price-tag{font-size:.78rem;font-weight:400;background:rgba(255,255,255,.18);padding:.2rem .6rem;border-radius:3px;letter-spacing:0}

/* =============================================
   HERO
============================================= */
#hero{min-height:100vh;padding:100px 0 80px;display:flex;align-items:center;background:var(--foam);position:relative;z-index:1}
.hero-inner{max-width:1280px;margin:0 auto;padding:0 5vw;display:grid;grid-template-columns:1fr 1fr;gap:5rem;align-items:center}
.hero-eyebrow{font-size:.75rem;font-weight:700;letter-spacing:.25em;text-transform:uppercase;color:var(--cyan);margin-bottom:1rem;display:flex;align-items:center;gap:.8rem;animation:fuUp .7s .2s both}
.hero-eyebrow::before{content:'';display:block;width:2rem;height:1.5px;background:var(--cyan)}
.hero-h1{font-family:'Noto Serif JP',serif;font-size:clamp(1.6rem,3.5vw,2.8rem);font-weight:700;line-height:1.4;color:var(--ink);margin-bottom:1.6rem;animation:fuUp .7s .35s both}
.hero-h1 .hl{position:relative;display:inline}
.hero-h1 .hl::after{content:'';position:absolute;left:0;bottom:-2px;width:100%;height:3px;background:var(--blue);border-radius:2px}
.hero-h1 .accent{color:var(--navy)}
.hero-copy{font-size:.95rem;color:var(--ink2);line-height:1.9;margin-bottom:1.8rem;animation:fuUp .7s .5s both}
.hero-ph-badge{display:inline-flex;align-items:center;gap:.8rem;background:var(--pale);border:1.5px solid rgba(119,172,255,.4);border-radius:4px;padding:.5rem 1rem;margin-bottom:1.4rem;animation:fuUp .7s .62s both;flex-wrap:wrap}
.hero-ph-item{display:inline-flex;align-items:center;gap:.4rem;font-size:.75rem;font-weight:700;color:var(--navy)}
.hero-ph-item svg{stroke:var(--cyan);flex-shrink:0}
.hero-ph-divider{width:1px;height:1.1rem;background:rgba(119,172,255,.5)}
.hero-tags{display:flex;flex-wrap:wrap;gap:.6rem;margin-bottom:2rem;animation:fuUp .7s .65s both}
.hero-tag{font-size:.75rem;font-weight:700;padding:.3rem .9rem;border-radius:3px;background:var(--pale);color:var(--navy);border:1px solid rgba(119,172,255,.4)}
.hero-price-box{background:#fff;border:1.5px solid var(--border);border-radius:var(--r);padding:1.5rem 2rem;display:flex;align-items:center;gap:1.4rem;margin-bottom:2rem;box-shadow:0 4px 20px rgba(26,79,168,.07);animation:fuUp .7s .8s both}
.hero-price{font-family:'Noto Serif JP',serif}
.hero-price .label{font-size:.75rem;color:var(--ink3);display:block;margin-bottom:.2rem}
.hero-price .amount{font-size:1.8rem;font-weight:700;color:var(--navy);line-height:1}
.hero-price .amount small{font-size:.9rem;font-weight:400}
.hero-price .note{font-size:.75rem;color:var(--ink3)}
.price-divider{width:1px;height:3rem;background:var(--border)}
.hero-gift{display:flex;align-items:center;gap:.8rem;flex:1}
.hero-gift-badge{width:2.2rem;height:2.2rem;background:var(--pale);border-radius:50%;display:flex;align-items:center;justify-content:center;flex-shrink:0;font-size:1rem}
.hero-gift-text .g1{font-size:.7rem;color:var(--ink3)}
.hero-gift-text .g2{font-size:.88rem;font-weight:700;color:var(--navy)}
.hero-actions{display:flex;gap:1rem;align-items:center;flex-wrap:wrap;animation:fuUp .7s .95s both}
.hero-visual{display:flex;flex-direction:column;gap:1rem;animation:fuRight .9s .3s both}
.hero-photo-main{width:100%;aspect-ratio:4/5;border-radius:var(--r)}
.hero-photo-sub{display:grid;grid-template-columns:1fr 1fr;gap:1rem}
.hero-sub-img{width:100%;aspect-ratio:1;object-fit:cover;display:block;border-radius:var(--r)}
.hero-video{width:100%;aspect-ratio:4/5;object-fit:cover;display:block;border-radius:var(--r);background:#f1f1f1}
.hero-scroll{position:absolute;bottom:2rem;left:50%;transform:translateX(-50%);z-index:2;display:flex;flex-direction:column;align-items:center;gap:.4rem;color:var(--ink3);font-size:.65rem;letter-spacing:.2em;text-transform:uppercase;animation:fuUp .8s 2s both}
.hero-scroll-line{width:1px;height:2.5rem;background:linear-gradient(to bottom,var(--cyan),transparent);animation:pulse 2s ease-in-out infinite}

/* =============================================
   STATS BAR
============================================= */
.stats-bar{background:var(--navy);padding:40px 5vw;position:relative;z-index:1}
.stats-inner{max-width:1280px;margin:0 auto;display:flex;justify-content:space-around;align-items:center;flex-wrap:wrap;gap:1.5rem}
.stat-item{text-align:center}
.stat-num{font-family:'Noto Serif JP',serif;font-size:clamp(1.4rem,3.5vw,2.4rem);color:var(--blue);display:block;line-height:1;margin-bottom:.25rem;font-weight:700}
.stat-desc{font-size:.72rem;letter-spacing:.1em;color:rgba(255,255,255,.78);text-transform:uppercase}
.stat-div{width:1px;height:2.5rem;background:rgba(255,255,255,.15)}

/* =============================================
   PROBLEMS
============================================= */
.problems-title{text-align:center;font-family:'Noto Serif JP',serif;font-size:clamp(1.3rem,3.5vw,2.2rem);font-weight:700;line-height:1.45;color:var(--ink);margin-bottom:56px}
.problems-title strong{color:var(--navy);position:relative;display:inline}
.problems-title strong::after{content:'';position:absolute;left:0;bottom:-2px;width:100%;height:3px;background:var(--blue);border-radius:2px}
.problems-grid{display:grid;grid-template-columns:1fr auto 1fr;gap:2rem;align-items:center;margin-bottom:48px}
.problems-list{display:flex;flex-direction:column;gap:1.2rem}
.problem-box{background:#fff;border-radius:10px;padding:1.2rem 1.5rem;font-size:.92rem;font-weight:700;color:var(--ink);line-height:1.5;transition:border-color .2s,transform .2s}
.problem-box:hover{border-left-color:var(--navy);transform:translateX(4px)}
.problems-center-photo{width:min(200px,28vw);aspect-ratio:2/3;border-radius:var(--r);overflow:hidden}
.fill-img{width:100%;height:100%;object-fit:cover;display:block}
.problems-resolve{text-align:center;background:var(--pale);border-radius:12px;padding:2rem 2.5rem;border:1.5px solid rgba(119,172,255,.35)}
.problems-resolve p{font-size:1rem;color:var(--ink2);margin-bottom:.5rem}
.problems-resolve strong{font-size:1.1rem;color:var(--navy);font-family:'Noto Serif JP',serif}

/* =============================================
   FEATURES
============================================= */
.features-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1.8rem;margin-top:3rem}
.feature-card{background:#fff;border:1px solid var(--border);border-radius:12px;padding:2rem 1.6rem;text-align:center;transition:transform .2s,box-shadow .2s,border-color .2s}
.feature-card:hover{transform:translateY(-4px);box-shadow:0 12px 32px rgba(26,79,168,.10);border-color:var(--blue)}
.feature-card-icon{width:3.6rem;height:3.6rem;background:var(--pale);border-radius:50%;margin:0 auto 1.2rem;display:flex;align-items:center;justify-content:center}
.feature-card-icon svg{stroke:var(--navy);fill:none;width:20px;height:20px}
.feature-card-num{font-size:.68rem;font-weight:700;letter-spacing:.18em;color:var(--cyan);text-transform:uppercase;margin-bottom:.4rem}
.feature-card h3{font-size:.95rem;font-weight:700;color:var(--ink);margin-bottom:.6rem;line-height:1.4}
.feature-card p{font-size:.82rem;color:var(--ink2);line-height:1.85}

/* =============================================
   FLOW STEPS
============================================= */
.flow-steps{display:flex;gap:0;justify-content:center;align-items:flex-start;margin-top:4rem;flex-wrap:wrap}
.flow-step{flex:1;min-width:160px;max-width:240px;text-align:center;padding:0 1.5rem;position:relative}
.flow-step::after{content:'→';position:absolute;right:-.5rem;top:1.8rem;font-size:1.2rem;color:var(--blue)}
.flow-step:last-child::after{display:none}
.flow-step-num{width:3.4rem;height:3.4rem;background:var(--navy);border-radius:50%;display:flex;align-items:center;justify-content:center;margin:0 auto 1.1rem;font-family:'Noto Serif JP',serif;font-size:1.1rem;font-weight:700;color:#fff;box-shadow:0 4px 14px rgba(26,79,168,.22)}
.flow-step h4{font-size:.9rem;font-weight:700;color:var(--ink);margin-bottom:.5rem}
.flow-step p{font-size:.8rem;color:var(--ink2);line-height:1.8}

/* =============================================
   DATA CARD (SCIENCE)
============================================= */
.data-card{background:#fff;border:1.5px solid var(--border);border-radius:16px;padding:3rem;display:grid;grid-template-columns:1fr;gap:3rem;align-items:center;box-shadow:0 4px 24px rgba(26,79,168,.07)}
.mechanism-diagram{background:#fff;border-radius:var(--r);overflow:hidden;border:1px solid var(--border);width:100%}
.mechanism-diagram svg{width:100%;height:auto;display:block}
.data-num-block{text-align:center}
.data-num-label{font-size:.88rem;color:var(--ink2);margin-bottom:.8rem;font-weight:500}
.data-num-main{font-family:'Noto Serif JP',serif;font-size:clamp(2.5rem,6vw,4.5rem);font-weight:700;color:var(--navy);line-height:1}
.data-num-sub{font-size:.88rem;color:var(--ink2);margin-top:.6rem;line-height:1.85}
.spec-mini-box{text-align:center;padding:.6rem 1rem;background:var(--pale);border-radius:4px;min-width:80px}
.spec-mini-val{font-family:'Noto Serif JP',serif;font-size:1.2rem;font-weight:700;color:var(--navy);line-height:1.2}
.spec-mini-lab{font-size:.72rem;color:var(--ink3);margin-top:.2rem}

/* =============================================
   SCENE TABS
============================================= */
.scene-tabs{display:flex;gap:.6rem;margin:2.5rem 0;flex-wrap:wrap}
.scene-tab{padding:.55rem 1.4rem;border-radius:4px;font-size:.82rem;font-weight:700;border:1.5px solid var(--border);background:transparent;color:var(--ink2);cursor:pointer;transition:all .2s;font-family:'Noto Sans JP',sans-serif}
.scene-tab.act,.scene-tab:hover{background:var(--navy);border-color:var(--navy);color:#fff}
.scene-content{display:none}
.scene-content.act{display:grid;grid-template-columns:1.2fr 1fr;gap:3.5rem;align-items:center}
.scene-text .season-label{font-size:.7rem;font-weight:700;letter-spacing:.2em;text-transform:uppercase;color:var(--cyan);margin-bottom:.5rem}
.scene-text h3{font-family:'Noto Serif JP',serif;font-size:clamp(1.1rem,2.5vw,1.65rem);font-weight:700;color:var(--ink);margin-bottom:.9rem;line-height:1.4}
.scene-text p{font-size:.88rem;color:var(--ink2);line-height:1.9;margin-bottom:1.2rem}
.scene-tags{display:flex;flex-wrap:wrap;gap:.6rem}
.scene-tag-item{font-size:.75rem;padding:.38rem .9rem;border-radius:3px;background:var(--pale);color:var(--navy);font-weight:500;border:1px solid rgba(119,172,255,.4)}
.scene-photo{width:100%;aspect-ratio:4/3;border-radius:var(--r);object-fit:cover;display:block}

.yearround-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1.4rem;margin-top:4rem}
.yr-card{background:#fff;border:1px solid var(--border);border-radius:10px;padding:1.4rem;display:flex;flex-direction:column;align-items:flex-start;gap:.6rem;transition:transform .2s,box-shadow .2s}
.yr-card:hover{transform:translateY(-3px);box-shadow:0 8px 24px rgba(26,79,168,.09)}
.yr-icon{width:2rem;height:2rem;background:var(--pale);border-radius:4px;display:flex;align-items:center;justify-content:center}
.yr-icon svg{stroke:var(--navy);fill:none;width:14px;height:14px}
.yr-name{font-size:.82rem;font-weight:700;color:var(--ink)}
.yr-desc{font-size:.72rem;color:var(--ink2)}

/* =============================================
   REASONS PHOTO
============================================= */
.reasons-photo-wrap{margin-top:3.5rem;border-radius:12px;overflow:hidden;width:100%;aspect-ratio:21/7}
.reasons-photo{width:100%;height:100%;object-fit:cover;display:block}

/* =============================================
   PLAN
============================================= */
.plan-grid{display:grid;grid-template-columns:1.1fr 1fr;gap:4rem;align-items:start;margin-top:3.5rem}
.plan-card{background:#fff;border:1.5px solid var(--border);border-radius:var(--r);overflow:hidden;box-shadow:0 8px 40px rgba(26,79,168,.10)}
.plan-card-head{background:var(--navy);padding:2.2rem 2.4rem;color:#fff;position:relative;overflow:hidden}
.plan-card-head::before{content:'';position:absolute;top:-2rem;right:-2rem;width:7rem;height:7rem;border-radius:50%;background:rgba(119,172,255,.12)}
.plan-badge{display:inline-block;background:rgba(255,255,255,.18);font-size:.68rem;font-weight:700;letter-spacing:.1em;padding:.2rem .7rem;border-radius:3px;margin-bottom:.7rem;text-transform:uppercase}
.plan-card-head h3{font-family:'Noto Serif JP',serif;font-size:1.35rem;margin-bottom:.2rem}
.plan-card-head p{font-size:.82rem;color:rgba(255,255,255,.75)}
.plan-rows{padding:2.2rem 2.4rem}
.plan-row{display:flex;justify-content:space-between;align-items:center;padding:1rem 0;border-bottom:1px solid #f0f4fb}
.plan-row:last-child{border-bottom:none}
.plan-row .rl{font-size:.85rem;color:var(--ink2)}
.plan-row .rv{font-size:.92rem;font-weight:700;color:var(--ink)}
.plan-row .rv.price{font-family:'Noto Serif JP',serif;font-size:1.6rem;color:var(--navy)}
.plan-row .rv.green{color:var(--green)}
.plan-row--price{background:var(--pale);border-radius:var(--r);padding:.8rem 1rem !important;margin:.2rem 0}
.plan-row--price .rl{color:var(--navy);font-weight:700}
.plan-cta-btn{width:100%;padding:1.15rem;background:var(--navy);color:#fff;font-family:'Noto Sans JP',sans-serif;font-size:.95rem;font-weight:700;letter-spacing:.06em;border:none;cursor:pointer;transition:background .2s;border-radius:0}
.plan-cta-btn:hover{background:var(--blue);color:var(--navy)}
.plan-side{display:flex;flex-direction:column;gap:1.6rem}
.gift-main-card{background:#fff;border:1.5px solid var(--border);border-radius:var(--r);overflow:hidden;box-shadow:0 4px 20px rgba(26,79,168,.08)}
.gift-main-card__head{background:linear-gradient(135deg,var(--navy),#1260c4);padding:1.2rem 1.5rem;color:#fff}
.gift-main-card__badge{display:inline-block;background:rgba(255,255,255,.2);font-size:.65rem;font-weight:700;letter-spacing:.08em;padding:.25rem .8rem;border-radius:3px;margin-bottom:.6rem}
.gift-main-card__title{font-family:'Noto Serif JP',serif;font-size:1rem;font-weight:700;line-height:1.35;margin-bottom:.25rem}
.gift-main-card__title span{font-size:1.1rem;color:var(--blue)}
.gift-main-card__sub{font-size:.68rem;color:rgba(255,255,255,.8)}
.gift-main-card__body{padding:1.6rem}
.gift-photo-row{display:flex;flex-direction:column;gap:1.2rem;margin-bottom:1.2rem}
.gift-specs{display:grid;grid-template-columns:1fr 1fr;gap:.3rem .5rem}
.gift-spec-item{display:flex;justify-content:space-between;align-items:center;padding:.35rem 0;border-bottom:1px solid #f0f4fb;font-size:.75rem}
.gift-spec-item:last-child{border-bottom:none}
.gift-spec-label{color:var(--ink2)}
.gift-spec-val{font-weight:700;color:var(--ink)}
.gift-spec-val small{font-size:.65rem;font-weight:400;color:var(--ink3);margin-left:.3rem}
.gift-main-card__desc{font-size:.75rem;color:var(--ink2);line-height:1.8;padding-top:.8rem;border-top:1px solid #f0f4fb}
.plan-note{background:#fff9e8;border:1px solid #fce8a0;border-radius:var(--r);padding:1.3rem 1.6rem}
.plan-note p{font-size:.78rem;color:#7a6520;line-height:1.9}
.plan-note p+p{margin-top:.3rem}

/* =============================================
   SLIDER
============================================= */
.cure-slider{width:100%;display:flex;flex-direction:column;gap:.6rem}
.cure-slider__main{position:relative;border-radius:var(--r);overflow:hidden !important;aspect-ratio:1/1;cursor:grab;user-select:none;max-width:100%}
.cure-slider__main:active{cursor:grabbing}
.cure-slider__track{display:flex;height:100%;transition:transform .38s cubic-bezier(.22,.61,.36,1);will-change:transform;width:100%}
.cure-slider__slide{min-width:100%;width:100%;height:100%;border-radius:0;flex-shrink:0;overflow:hidden}
.cure-slider__btn{position:absolute;top:50%;transform:translateY(-50%);width:2rem;height:2rem;border-radius:50%;background:rgba(255,255,255,.92);border:1px solid var(--border);display:flex;align-items:center;justify-content:center;cursor:pointer;color:var(--navy);box-shadow:0 2px 10px rgba(26,79,168,.12);transition:background .2s,transform .2s;z-index:5}
.cure-slider__btn:hover{background:#fff;transform:translateY(-50%) scale(1.08)}
.cure-slider__btn--prev{left:.5rem}
.cure-slider__btn--next{right:.5rem}
.cure-slider__dots{position:absolute;bottom:.5rem;left:50%;transform:translateX(-50%);display:flex;gap:.4rem;z-index:5}
.cure-slider__dot{width:.45rem;height:.45rem;border-radius:50%;background:rgba(255,255,255,.55);transition:background .2s,transform .2s}
.cure-slider__dot.act{background:#fff;transform:scale(1.25)}
.cure-slider__thumbs{display:flex;gap:.5rem}
.cure-slider__thumb{flex:1;aspect-ratio:1;border-radius:5px;cursor:pointer;border:2px solid transparent;transition:border-color .2s,opacity .2s}
.cure-slider__thumb:not(.act){opacity:.6;filter:grayscale(20%)}
.cure-slider__thumb.act{border-color:var(--navy);opacity:1;filter:none}

/* =============================================
   FAQ
============================================= */
.faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:1.2rem;margin-top:3.5rem}
.faq-item{background:#fff;border:1px solid var(--border);border-radius:var(--r);overflow:hidden}
.faq-q{width:100%;text-align:left;background:none;border:none;padding:1.3rem 1.5rem;display:flex;align-items:flex-start;gap:.8rem;cursor:pointer;font-family:'Noto Sans JP',sans-serif;font-size:.9rem;font-weight:700;color:var(--ink);transition:background .2s}
.faq-q:hover{background:var(--foam)}
.faq-q-mark{min-width:1.5rem;height:1.5rem;background:var(--pale);border-radius:3px;display:flex;align-items:center;justify-content:center;font-size:.78rem;font-weight:700;color:var(--navy);flex-shrink:0;margin-top:.05rem}
.faq-q-text{flex:1;line-height:1.5}
.faq-toggle{min-width:1.1rem;height:1.1rem;border:1.5px solid var(--blue);border-radius:50%;display:flex;align-items:center;justify-content:center;flex-shrink:0;transition:transform .2s;font-size:.75rem;color:var(--blue);margin-top:.15rem}
.faq-item.op .faq-toggle{transform:rotate(45deg)}
.faq-a{display:none;padding:.3rem 1.5rem 1.2rem 3.8rem;font-size:.85rem;color:var(--ink2);line-height:1.9}
.faq-item.op .faq-a{display:block}

/* =============================================
   SAFETY
============================================= */
.safety-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.8rem;margin-top:3.5rem}
.safety-card{background:#fff;border:1px solid var(--border);border-radius:14px;padding:2.4rem 1.8rem;text-align:center;transition:transform .2s,box-shadow .2s}
.safety-card:hover{transform:translateY(-4px);box-shadow:0 10px 28px rgba(26,79,168,.09)}
.safety-icon{width:3.6rem;height:3.6rem;background:var(--pale);border-radius:50%;display:flex;align-items:center;justify-content:center;margin:0 auto 1.2rem}
.safety-icon svg{stroke:var(--navy);fill:none;width:20px;height:20px}
.safety-card h4{font-size:1rem;font-weight:700;color:var(--ink);margin-bottom:.7rem}
.safety-card p{font-size:.82rem;color:var(--ink2);line-height:1.85}
.safety-photo-wrap{width:100%;aspect-ratio:21/7;border-radius:var(--r);overflow:hidden;margin-top:3rem}
.safety-photo-img{width:100%;height:100%;object-fit:cover;display:block}

/* =============================================
   SPEC & MHLW
============================================= */
.spec-layout{display:grid;grid-template-columns:1fr 1fr;gap:4rem;align-items:start}
.spec-block-title{font-family:'Noto Serif JP',serif;font-size:.95rem;font-weight:700;color:var(--ink);margin-bottom:1rem;display:flex;flex-direction:column;gap:.3rem}
.spec-block-tag{font-size:.6rem;font-weight:700;letter-spacing:.2em;text-transform:uppercase;color:var(--cyan)}
.spec-card{border:1.5px solid var(--border);border-radius:var(--r);overflow:hidden;background:#fff;margin-bottom:1.2rem}
.spec-row{display:flex;justify-content:space-between;align-items:center;padding:.9rem 1.2rem;border-bottom:1px solid #f0f4fb;font-size:.82rem}
.spec-row:last-child{border-bottom:none}
.spec-row--head{background:var(--navy);color:#fff;font-weight:700;font-size:.72rem;letter-spacing:.1em;text-transform:uppercase}
.spec-label{color:var(--ink2)}
.spec-val{font-weight:700;color:var(--ink)}
.spec-val--em{color:var(--navy);font-size:.88rem}
.usage-guide{display:flex;flex-direction:column;gap:1rem}
.usage-guide-item{display:flex;align-items:center;gap:1rem;border-radius:var(--r);padding:1.1rem 1.4rem}
.usage-guide-item--a{background:var(--pale);border:1px solid rgba(119,172,255,.35)}
.usage-guide-item--b{background:#e8fff4;border:1px solid rgba(46,204,113,.3)}
.usage-guide-icon{font-size:1.5rem;flex-shrink:0}
.usage-guide-label{font-size:.72rem;color:var(--ink2);margin-bottom:.2rem}
.usage-guide-val{font-size:.88rem;font-weight:700;color:var(--navy);margin-bottom:.15rem}
.usage-guide-note{font-size:.68rem;color:var(--ink3)}
.mhlw-card{background:#fff;border:1.5px solid var(--border);border-radius:var(--r);overflow:hidden;margin-bottom:1.2rem}
.mhlw-card__head{background:#f3f7ff;border-bottom:1px solid var(--border);padding:1.2rem 1.5rem;display:flex;align-items:center;gap:.9rem}
.mhlw-icon{font-size:1.6rem}
.mhlw-org{font-size:.65rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--cyan);margin-bottom:.2rem}
.mhlw-title{font-size:.82rem;font-weight:700;color:var(--ink);line-height:1.4}
.mhlw-rows{padding:.5rem 0}
.mhlw-row{display:flex;justify-content:space-between;align-items:center;padding:.9rem 1.4rem;border-bottom:1px solid #f0f4fb;gap:1rem}
.mhlw-row-label{font-size:.78rem;color:var(--ink2);line-height:1.5;flex:1}
.mhlw-row-val{display:flex;flex-direction:column;align-items:flex-end;gap:.25rem}
.mhlw-ppm{font-family:'Noto Serif JP',serif;font-size:1.15rem;font-weight:700;color:var(--navy)}
.mhlw-ppm small{font-size:.65rem;font-family:'Noto Sans JP',sans-serif;font-weight:400;margin-left:.2rem}
.mhlw-check{font-size:.68rem;color:var(--green);font-weight:700}
.mhlw-category{padding:.8rem 1.2rem;background:#fafbff;border-top:1px solid var(--border)}
.mhlw-category-title{font-size:.65rem;font-weight:700;color:var(--ink3);letter-spacing:.06em;margin-bottom:.6rem;text-transform:uppercase}
.mhlw-cat-rows{display:flex;flex-direction:column;gap:.3rem}
.mhlw-cat-row{display:flex;justify-content:space-between;font-size:.78rem;padding:.3rem 0;border-bottom:1px dashed #e8eef8}
.mhlw-cat-row:last-child{border-bottom:none}
.mhlw-cat-label{color:var(--ink2)}
.mhlw-cat-val{font-weight:700;color:var(--ink)}
.mhlw-result{padding:1rem 1.2rem;background:linear-gradient(135deg,#e8f0fd,#deeaff);border-top:1px solid rgba(119,172,255,.3)}
.mhlw-result-inner{display:flex;align-items:flex-start;gap:.7rem;font-size:.78rem;color:var(--ink);line-height:1.7}
.mhlw-result-icon{width:1.4rem;height:1.4rem;background:var(--navy);border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;font-size:.7rem;flex-shrink:0;margin-top:.1rem}
.spec-caution{background:#fffbf0;border:1px solid #fce8a0;border-radius:var(--r);padding:1rem 1.2rem}
.spec-caution-title{font-size:.75rem;font-weight:700;color:#7a6520;margin-bottom:.6rem}
.spec-caution-list{display:flex;flex-direction:column;gap:.5rem;padding-left:.2rem}
.spec-caution-list li{font-size:.72rem;color:#7a6520;line-height:1.75;list-style:disc;margin-left:1rem}

/* =============================================
   FINAL CTA
============================================= */
#final-cta{background:var(--navy);text-align:center;position:relative;z-index:1;overflow:hidden}
#final-cta::before{content:'';position:absolute;top:-6rem;left:-6rem;width:20rem;height:20rem;border-radius:50%;background:rgba(119,172,255,.08)}
#final-cta::after{content:'';position:absolute;bottom:-5rem;right:-5rem;width:16rem;height:16rem;border-radius:50%;background:rgba(119,172,255,.08)}
.final-cta-inner{position:relative;z-index:1;padding:100px 5vw;display:flex;flex-direction:column;align-items:center;text-align:center}
.final-cta-title{font-family:'Noto Serif JP',serif;font-size:clamp(1.4rem,3.5vw,2.4rem);font-weight:700;color:#fff;margin-bottom:1.2rem;line-height:1.35}
.final-cta-title .hl{position:relative;display:inline}
.final-cta-title .hl::after{content:'';position:absolute;left:0;bottom:-2px;width:100%;height:3px;background:var(--blue);border-radius:2px}
.final-cta-sub{font-size:.9rem;color:rgba(255,255,255,.85);margin-bottom:2.8rem}
.final-cta-nums{display:inline-flex;align-items:center;gap:2rem;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.18);border-radius:var(--r);padding:1.4rem 2.2rem;margin-bottom:2.5rem;flex-wrap:wrap;justify-content:center}
.final-num{text-align:center}
.final-num .fn{font-family:'Noto Serif JP',serif;font-size:2.4rem!important;font-weight:700;color:#ffffff;display:block;line-height:1}
.final-num .fl{font-size:.65rem;color:rgba(255,255,255,.75);text-transform:uppercase;letter-spacing:.1em;display:block;margin-top:.4rem}
.final-div{width:1px;height:2.8rem;background:rgba(255,255,255,.18)}

/* =============================================
   DISCLAIMER & FOOTER
============================================= */
.disclaimer{background:#f8f9fc;border-top:1px solid var(--border);padding:32px 0}
.disclaimer p{font-size:.72rem;color:var(--ink3);line-height:2.2}
footer{background:var(--navy);color:rgba(200,220,255,.7);padding:2.8rem 5vw;display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:1rem;position:relative;z-index:1}
.footer-logo{font-family:'Noto Serif JP',serif;font-size:1.1rem;color:var(--blue);letter-spacing:.15em}
.footer-copy{font-size:.72rem}

/* =============================================
   ANIMATIONS
============================================= */
@keyframes fuUp{from{opacity:0;transform:translateY(28px)}to{opacity:1;transform:translateY(0)}}
@keyframes fuRight{from{opacity:0;transform:translateX(36px)}to{opacity:1;transform:translateX(0)}}
@keyframes fuSlide{from{opacity:0;transform:translateX(-50%) translateY(20px)}to{opacity:1;transform:translateX(-50%) translateY(0)}}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-8px)}}
@keyframes pulse{0%,100%{opacity:.3;transform:scaleY(1)}50%{opacity:1;transform:scaleY(1.1)}}
.rv{opacity:0;transform:translateY(28px);transition:opacity .85s cubic-bezier(.22,.61,.36,1),transform .85s cubic-bezier(.22,.61,.36,1)}
.rv.vs{opacity:1;transform:none}
.rv.d1{transition-delay:.12s}.rv.d2{transition-delay:.24s}.rv.d3{transition-delay:.36s}

/* =============================================
   RESPONSIVE — PC (901px+) のみ大きくする調整
============================================= */
@media(min-width:901px){
  .hero-h1{font-size:clamp(1.8rem,3.5vw,2.8rem)}
  .problems-title{font-size:clamp(1.6rem,3.5vw,2.2rem)}
  .c-heading-main__title{font-size:clamp(1.6rem,3.5vw,2.4rem)}
}

/* =============================================
   RESPONSIVE — SP (max 900px)
============================================= */
@media(max-width:900px){
  .burger{display:flex}
  .header-nav{display:none}

  /* Hero */
  #hero{padding:80px 0 60px}
  .hero-inner{grid-template-columns:1fr;gap:2rem;padding:0 4vw}
  .hero-visual{order:-1}
  .hero-video{aspect-ratio:9/16 !important;width:100% !important}
  .hero-photo-main{aspect-ratio:3/2}
  .hero-photo-sub{grid-template-columns:1fr 1fr}
  .hero-h1{font-size:clamp(1.4rem,6vw,1.9rem)}
  .hero-copy{font-size:.88rem}
  .hero-actions{flex-direction:column}
  .hero-actions .c-btn{width:100%;justify-content:center}

  /* Stats */
  .stats-bar{padding:28px 4vw}
  .stat-div{display:none}
  .stats-inner{gap:.8rem}

  /* Problems */
  .problems-grid{grid-template-columns:1fr;gap:1.2rem;margin-bottom:32px}
  .problems-center-photo{width:100%;aspect-ratio:3/4;max-width:280px;margin:0 auto}
  .problems-list{gap:.7rem}

  /* Features */
  .features-grid{grid-template-columns:1fr 1fr}
  .feature-card{padding:1.4rem 1rem}

  /* Science */
  .data-card{padding:1.4rem;gap:1.5rem}

  /* Scene */
  .scene-content.act{display:flex;flex-direction:column;gap:1.2rem}
  .scene-content .scene-photo{order:-1;aspect-ratio:16/9}
  .scene-text h3{font-size:clamp(1rem,5vw,1.3rem)}
  .yearround-grid{grid-template-columns:repeat(2,1fr);gap:1rem;margin-top:2.5rem}

  /* Reasons */
  .features-grid[style*="repeat(3"]{grid-template-columns:1fr !important}
  .reasons-photo-wrap{aspect-ratio:16/9}

  /* Plan */
  .plan-grid{grid-template-columns:1fr;gap:2rem}
  .plan-rows{padding:1.4rem}
  .plan-card-head{padding:1.6rem}
  .plan-row{flex-direction:column;align-items:flex-start;gap:.2rem;padding:.7rem 0}
  .plan-row--price{flex-direction:row !important;align-items:center;justify-content:space-between}
  .plan-row--price .rv.price{font-size:1.5rem}

  /* Flow */
  .flow-steps{gap:.8rem;margin-top:2.5rem}
  .flow-step{max-width:100%;padding:.6rem 0}
  .flow-step::after{display:none}

  /* Spec */
  .spec-layout{grid-template-columns:1fr}

  /* FAQ */
  .faq-grid{grid-template-columns:1fr}

  /* Safety */
  .safety-grid{grid-template-columns:1fr 1fr}
  .safety-photo-wrap{aspect-ratio:16/9}

  /* Final CTA */
  .final-cta-inner{padding:64px 4vw}
  .final-cta-nums{width:90%;flex-direction:row;flex-wrap:wrap;gap:1rem;padding:1rem}
  .final-div{display:none}
  .final-num .fn{font-size:1.3rem}
  #final-cta .c-btn{width:90%;max-width:400px;justify-content:center}

  /* Fixed CTA */
  .c-fixed-cta{left:50%;transform:translateX(-50%);width:calc(100% - 2rem);max-width:460px;font-size:.82rem;padding:.75rem 1rem;justify-content:center}
  .c-fixed-cta:hover{transform:translateX(-50%) translateY(-2px)}

  /* Section spacing */
  .section{padding:72px 0}
  .c-heading-main{margin-bottom:48px}
  .c-heading{margin-bottom:32px;gap:1.2rem}
  .container{padding:0 4vw}
}

@media(max-width:560px){
  .features-grid{grid-template-columns:1fr}
  .safety-grid{grid-template-columns:1fr}
  .hero-photo-sub{grid-template-columns:1fr 1fr}
  .yearround-grid{grid-template-columns:1fr 1fr}
  .faq-q{font-size:.85rem;padding:1rem 1.2rem}
  .problems-center-photo{aspect-ratio:2/3}
}

/* SP スライダー 正方形・1枚ずつ表示 */
@media(max-width:900px){
  .cure-slider__main{
    aspect-ratio:1/1 !important;
    overflow:hidden !important;
    width:100% !important;
  }
  .cure-slider__track{
    display:flex !important;
    flex-wrap:nowrap !important;
    width:100% !important;
    height:100% !important;
  }
  .cure-slider__slide{
    min-width:100% !important;
    max-width:100% !important;
    flex-shrink:0 !important;
    overflow:hidden !important;
  }
  .cure-slider__slide img{
    width:100% !important;
    height:100% !important;
    object-fit:cover !important;
    display:block !important;
  }
}