/* =========================================
   LaBelleVie — ホワイトニング LP
   Monotone Luxury Design  v1.0
   ========================================= */

/* ---------- Variables ---------- */
:root {
  --black:     #0a0a0a;
  --gray-900:  #111111;
  --gray-800:  #1c1c1c;
  --gray-700:  #2c2c2c;
  --gray-600:  #3d3d3d;
  --gray-500:  #555555;
  --gray-400:  #888888;
  --gray-300:  #aaaaaa;
  --gray-200:  #cccccc;
  --gray-100:  #e5e5e5;
  --gray-50:   #f4f4f4;
  --white:     #ffffff;
  --line-green:#e6c200;
  --line-dark: #c9a800;
  --line-text: #1a1a1a;
  --gold:      #b8a87a;
  --gold-lt:   #d4c49a;

  --font-serif:'Noto Serif JP','Georgia',serif;
  --font-sans: 'Noto Sans JP','Hiragino Kaku Gothic ProN',sans-serif;
  --font-en:   'Cormorant Garamond',serif;
  --font-price:'Cormorant Garamond','Georgia',serif;

  --radius-s:  6px;
  --radius-m:  12px;
  --radius-l:  20px;
  --tr:        0.28s ease;
  --sh:        0 4px 28px rgba(0,0,0,0.10);
  --sh-hov:    0 10px 44px rgba(0,0,0,0.18);
}

/* ---------- Reset ---------- */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{font-size:16px;scroll-behavior:smooth}
body{
  font-family:var(--font-sans);
  background:var(--gray-50);
  color:var(--gray-800);
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  font-size:17px;
  overflow-wrap:break-word;
  word-break:keep-all;
}
a{text-decoration:none;color:inherit}
ul{list-style:none}
img{max-width:100%;height:auto;display:block}

/* ---------- Container ---------- */
.container{
  max-width:1060px;
  margin:0 auto;
  padding:0 24px;
}

/* =========================================
   HEADER
   ========================================= */
.site-header{
  position:sticky;top:0;z-index:100;
  background:var(--black);
  border-bottom:1px solid var(--gray-700);
}
.header-inner{
  max-width:1060px;margin:0 auto;padding:0 24px;
  height:62px;
  display:flex;align-items:center;justify-content:space-between;
}

/* ホームボタン（左上） */
.btn-home-header{
  display:inline-flex;align-items:center;gap:7px;
  color:var(--white);
  background:var(--black);
  border:1px solid rgba(255,255,255,.55);
  padding:9px 18px;border-radius:24px;
  font-size:.82rem;letter-spacing:.08em;
  transition:var(--tr);white-space:nowrap;
  font-family:var(--font-sans);
}
.btn-home-header i{font-size:.9rem;color:var(--white)}
.btn-home-header:hover{background:var(--gray-800);color:var(--white);border-color:var(--white)}

/* =========================================
   HERO / FIRST VIEW
   ========================================= */
.hero{
  position:relative;overflow:hidden;
  background:var(--black);
  padding:100px 24px 90px;
  text-align:center;
}

/* 背景の細いライン装飾 */
.hero-bg-lines{
  position:absolute;inset:0;
  display:flex;justify-content:center;align-items:stretch;
  gap:120px;
  opacity:.06;pointer-events:none;
}
.hero-bg-lines span{
  display:block;width:1px;
  background:linear-gradient(to bottom,transparent,var(--gold),transparent);
}

.hero::after{
  content:'';position:absolute;bottom:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,var(--gold),transparent);
}

.hero-inner{position:relative;z-index:1}

.hero-catch{
  font-family:var(--font-serif);
  font-size:clamp(2rem,5.5vw,3.6rem);
  color:var(--white);font-weight:300;
  letter-spacing:.12em;line-height:1.45;
  margin-bottom:24px;
}
.hero-catch em{
  font-style:normal;
  background:linear-gradient(135deg,var(--gold-lt),var(--gold));
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;
  background-clip:text;
}

.hero-sub{
  font-size:clamp(.88rem,2vw,1rem);
  color:var(--gray-300);letter-spacing:.1em;
  line-height:2.1;margin-bottom:24px;
}

.hero-body{
  font-size:clamp(.88rem,2vw,1rem);
  color:var(--gray-400);letter-spacing:.08em;
  line-height:2;margin-bottom:36px;
}

.hero-divider{
  display:flex;align-items:center;justify-content:center;
  gap:16px;margin-bottom:0;
}
.hero-divider span{
  display:block;width:56px;height:1px;
  background:linear-gradient(90deg,transparent,var(--gold));
}
.hero-divider span:last-child{
  background:linear-gradient(90deg,var(--gold),transparent);
}
.hero-divider i{color:var(--gold);font-size:.75rem;opacity:.7}

/* =========================================
   MAIN
   ========================================= */
.main-content{padding:0 0 120px}

/* =========================================
   LP SECTION — 共通
   ========================================= */
.lp-section{
  padding:80px 0;
  border-bottom:1px solid var(--gray-100);
}
.lp-section:last-child{border-bottom:none}

/* ダーク背景セクション */
.lp-section--dark{
  background:var(--black);
  border-bottom:1px solid var(--gray-800);
}
.lp-section--dark-mid{
  background:var(--gray-900);
  border-bottom:1px solid var(--gray-800);
}
.lp-section--accent{
  background:var(--gray-800);
  border-bottom:1px solid var(--gray-700);
}

/* セクション見出し */
.sec-label{
  font-family:var(--font-en);
  font-size:.62rem;letter-spacing:.45em;
  color:var(--gold);
  border:1px solid var(--gold);
  padding:4px 14px;display:inline-block;
  margin-bottom:20px;
}
.sec-label--light{
  color:var(--gold);
  border-color:var(--gold);
}

.sec-title{
  font-family:var(--font-serif);
  font-size:clamp(1.2rem,3vw,1.7rem);
  color:var(--gray-900);font-weight:400;
  letter-spacing:.07em;line-height:1.55;
  margin-bottom:28px;
}
.sec-title--white{
  color:var(--white);
}

/* =========================================
   CONCEPT
   ========================================= */
.essence-text{
  font-size:clamp(1.1rem,2.5vw,1.4rem);
  font-family:var(--font-serif);
  color:var(--gray-900);
  line-height:1.85;
  font-weight:400;
  letter-spacing:.06em;
  max-width:700px;
}
.essence-text--white{
  color:var(--white);
}

/* =========================================
   FOR YOU
   ========================================= */
.foryou-list{
  margin-bottom:28px;
}
.foryou-list li{
  font-size:1rem;
  color:var(--gray-300);
  line-height:2;
  padding:10px 0;
  border-bottom:1px solid var(--gray-800);
  display:flex;
  align-items:flex-start;
  gap:12px;
}
.foryou-list li:last-child{border-bottom:none}
.foryou-list li::before{
  content:'';
  display:block;
  width:4px;height:4px;
  border-radius:50%;
  background:var(--gold);
  margin-top:12px;
  flex-shrink:0;
}

/* =========================================
   PRICE
   ========================================= */
.plan-section{margin-bottom:80px}

.plan-section-label{
  display:flex;align-items:center;gap:14px;
  margin-bottom:28px;
}
.ps-num{
  font-family:var(--font-en);
  font-size:2.4rem;font-weight:300;
  color:var(--gray-200);line-height:1;
}
.ps-tag{
  font-family:var(--font-en);
  font-size:.65rem;letter-spacing:.4em;
  color:var(--gold);
  border:1px solid var(--gold);
  padding:4px 14px;
}

.plan-main-card{
  display:grid;
  grid-template-columns:1fr 1fr;
  border-radius:var(--radius-l);
  overflow:hidden;
  box-shadow:var(--sh);
  transition:var(--tr);
}
.plan-main-card:hover{box-shadow:var(--sh-hov);transform:translateY(-3px)}

.no1-card .pmc-left{background:var(--black)}

.pmc-left{
  padding:44px 40px;
  position:relative;
}
.pmc-left::after{
  content:'';
  position:absolute;right:0;top:40px;bottom:40px;width:1px;
  background:linear-gradient(to bottom,transparent,var(--gray-600),transparent);
}

.pmc-title{
  font-family:var(--font-serif);
  font-size:clamp(1.3rem,2.5vw,1.7rem);
  color:var(--white);font-weight:400;
  letter-spacing:.08em;line-height:1.5;
  margin-bottom:12px;
}

.pmc-time{
  font-size:.9rem;color:var(--gray-300);
  letter-spacing:.05em;margin-bottom:28px;
}
.pmc-time i{color:var(--gold);margin-right:6px}

.pmc-option-block{
  background:rgba(255,255,255,.04);
  border:1px solid rgba(255,255,255,.08);
  border-radius:var(--radius-s);
  padding:14px 18px;
}
.pmc-option-label{
  font-family:var(--font-en);
  font-size:.62rem;letter-spacing:.3em;
  color:var(--gold);
  margin-bottom:6px;text-transform:uppercase;
}
.pmc-option-desc{
  font-size:.88rem;
  color:var(--gray-400);
  line-height:1.6;
  letter-spacing:.03em;
}

.no1-card .pmc-right{background:var(--gray-50)}

.pmc-right{padding:44px 40px;display:flex;align-items:center}

.price-block-wrap{width:100%}

.price-normal-row{
  display:flex;align-items:center;justify-content:space-between;
  padding-bottom:18px;
  border-bottom:1px solid var(--gray-200);
  margin-bottom:20px;
}
.pb-label{
  font-size:.88rem;color:var(--gray-500);letter-spacing:.05em;
}
.pb-price{
  font-family:var(--font-price);
  font-size:.95rem;color:var(--gray-500);
  text-decoration:line-through;
}
.pb-price small{font-size:.7em}
.pb-price strong{font-size:1.4rem;font-weight:500}

.price-line-row{
  background:var(--gray-900);
  border-radius:var(--radius-m);
  padding:20px 22px;
  margin-bottom:16px;
}
.price-line-badge{
  display:inline-flex;align-items:center;gap:6px;
  background:var(--line-green);color:var(--line-text);
  font-size:.72rem;padding:5px 14px;border-radius:16px;
  margin-bottom:12px;font-weight:700;
  white-space:normal;
  word-break:keep-all;
  overflow-wrap:break-word;
}
.price-line-badge i{font-size:.9rem;flex-shrink:0}
.price-line-arrow{
  font-size:.75rem;color:var(--gray-400);
  letter-spacing:.04em;margin-bottom:6px;
}
.price-line-arrow i{color:var(--gray-500);margin:0 4px}
.price-line-big{
  font-family:var(--font-price);
  color:var(--white);
  font-size:1rem;
}
.price-line-big small{font-size:.75em;color:var(--gray-300)}
.price-line-big strong{
  font-size:3.2rem;font-weight:600;
  letter-spacing:-.01em;
}

.price-note-text{
  font-size:.82rem;color:var(--gray-400);
  letter-spacing:.04em;margin-bottom:20px;
}

.btn-line-card{
  display:flex;align-items:center;justify-content:center;gap:10px;
  width:100%;
  background:var(--line-green);color:var(--line-text);
  padding:15px 20px;border-radius:40px;
  font-size:.95rem;font-weight:700;letter-spacing:.06em;
  box-shadow:0 4px 18px rgba(230,194,0,.25);
  transition:var(--tr);
  white-space:nowrap;
}
.btn-line-card:hover{background:var(--line-dark);transform:translateY(-2px);box-shadow:0 8px 28px rgba(230,194,0,.38)}
.btn-line-card i{font-size:1.1rem}

/* 料金注釈 */
.price-note-bottom{
  margin-top:16px;
  margin-bottom:28px;
  font-size:.8rem;
  color:var(--gray-500);
  line-height:2;
  letter-spacing:.03em;
}

/* =========================================
   LINE CTA（料金セクション内）
   ========================================= */
.line-cta-section{
  margin-top:80px;
  background:var(--white);
  border:1px solid var(--gray-100);
  border-radius:var(--radius-l);
  overflow:hidden;
  box-shadow:var(--sh);
}
.line-cta-inner{
  display:flex;align-items:stretch;
}

.line-cta-left{
  flex:1;padding:52px 56px;
  border-right:none;
}
.lc-eyebrow{
  font-family:var(--font-en);
  font-size:.62rem;letter-spacing:.45em;
  color:var(--gold);
  border:1px solid var(--gold);
  padding:4px 14px;display:inline-block;
  margin-bottom:20px;
}
.lc-title{
  font-family:var(--font-serif);
  font-size:clamp(1.3rem,2.5vw,1.9rem);
  color:var(--gray-900);font-weight:400;
  letter-spacing:.07em;line-height:1.45;
  margin-bottom:14px;
}
.lc-desc{
  font-size:.93rem;color:var(--gray-500);
  line-height:1.95;margin-bottom:24px;
}

.lc-benefit{
  background:var(--gray-900);
  border-radius:var(--radius-m);
  padding:18px 22px;margin-bottom:28px;
  display:flex;flex-direction:column;gap:10px;
}
.lc-benefit-row{
  display:flex;align-items:center;gap:10px;
  flex-wrap:wrap;font-size:.9rem;color:var(--gray-300);
}
.lc-benefit-row i.fa-line{color:var(--line-green);font-size:1.1rem;filter:drop-shadow(0 0 3px rgba(230,194,0,.5))}
.lc-from{text-decoration:line-through;color:var(--gray-500)}
.lc-arrow{color:var(--gray-500);font-size:.65rem}
.lc-to{color:var(--gold-lt);font-size:1rem}
.lc-to strong{font-size:1.5rem;font-weight:600;color:var(--white)}

.btn-line-main{
  display:inline-flex;align-items:center;gap:10px;
  background:var(--line-green);color:var(--line-text);
  padding:15px 36px;border-radius:40px;
  font-size:.95rem;font-weight:700;letter-spacing:.07em;
  box-shadow:0 4px 22px rgba(230,194,0,.28);
  transition:var(--tr);
}
.btn-line-main:hover{background:var(--line-dark);transform:translateY(-2px);box-shadow:0 8px 32px rgba(230,194,0,.42)}
.btn-line-main i{font-size:1.1rem}

/* =========================================
   CONCLUSION
   ========================================= */
.conclusion-text{
  font-family:var(--font-serif);
  font-size:clamp(1.1rem,2.5vw,1.4rem);
  color:var(--white);
  font-weight:400;
  line-height:2;
  letter-spacing:.06em;
  max-width:700px;
  margin-bottom:20px;
}

/* =========================================
   クロージングセクション
   ========================================= */
.closing-section{
  background:var(--black);
  padding:100px 24px;
  text-align:center;
  position:relative;
  overflow:hidden;
}
.closing-section::before{
  content:'';
  position:absolute;inset:0;
  background:radial-gradient(ellipse 70% 50% at 50% 100%,rgba(184,168,122,.08),transparent);
  pointer-events:none;
}
.closing-inner{
  position:relative;z-index:1;
  max-width:600px;margin:0 auto;
}
.closing-lead{
  font-size:clamp(.95rem,2vw,1.1rem);
  color:var(--gray-300);
  line-height:2.1;
  letter-spacing:.06em;
  margin-bottom:40px;
}
.closing-main{
  font-family:var(--font-serif);
  font-size:clamp(1.15rem,3vw,1.6rem);
  color:var(--white);
  font-weight:300;
  line-height:1.9;
  letter-spacing:.08em;
  margin-bottom:20px;
}
.closing-main em{
  font-style:normal;
  background:linear-gradient(135deg,var(--gold-lt),var(--gold));
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;
  background-clip:text;
}
.closing-sub{
  font-size:clamp(.9rem,1.8vw,1rem);
  color:var(--gray-400);
  line-height:2;
  letter-spacing:.05em;
  margin-bottom:16px;
}
.closing-divider{
  width:60px;height:1px;
  background:linear-gradient(90deg,transparent,var(--gold),transparent);
  margin:40px auto;
}

/* =========================================
   最終CTA
   ========================================= */
.final-cta-section{
  padding:80px 24px 100px;
  background:var(--gray-50);
  text-align:center;
}
.final-cta-inner{max-width:560px;margin:0 auto}
.final-cta-label{
  font-family:var(--font-en);
  font-size:.62rem;letter-spacing:.45em;
  color:var(--gold);
  border:1px solid var(--gold);
  padding:4px 14px;display:inline-block;
  margin-bottom:24px;
}
.final-cta-title{
  font-family:var(--font-serif);
  font-size:clamp(1.2rem,3vw,1.7rem);
  color:var(--gray-900);font-weight:400;
  letter-spacing:.07em;line-height:1.6;
  margin-bottom:32px;
}
.btn-line-final{
  display:inline-flex;align-items:center;justify-content:center;gap:12px;
  background:var(--line-green);color:var(--line-text);
  padding:20px 52px;border-radius:50px;
  font-size:1.05rem;font-weight:700;letter-spacing:.08em;
  box-shadow:0 6px 28px rgba(230,194,0,.38);
  transition:var(--tr);
  width:100%;max-width:400px;
}
.btn-line-final:hover{background:var(--line-dark);transform:translateY(-2px);box-shadow:0 12px 40px rgba(230,194,0,.5)}
.btn-line-final i{font-size:1.3rem}

.final-cta-note{
  margin-top:24px;
  font-size:.73rem;
  color:var(--gray-500);
  line-height:2.1;
  letter-spacing:.03em;
}

/* =========================================
   HEADER LINE BTN
   ========================================= */
.btn-line-header{
  display:inline-flex;align-items:center;gap:6px;
  background:var(--line-green);color:var(--line-text);
  padding:9px 18px;border-radius:24px;
  font-size:.8rem;font-weight:700;letter-spacing:.04em;
  transition:var(--tr);white-space:nowrap;
}
.btn-line-header:hover{background:var(--line-dark);transform:translateY(-1px)}

/* =========================================
   FLOAT LINE BTN
   ========================================= */
.float-line-btn{
  position:fixed;bottom:32px;right:28px;z-index:200;
  background:var(--line-green);color:var(--line-text);
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  width:68px;height:68px;border-radius:50%;
  font-size:.62rem;font-weight:700;letter-spacing:.02em;gap:2px;
  box-shadow:0 6px 24px rgba(230,194,0,.45);
  transition:var(--tr);
  animation:pulse 3s ease-in-out infinite;
}
.float-line-btn i{font-size:1.7rem}
.float-line-btn:hover{transform:scale(1.08);box-shadow:0 10px 36px rgba(230,194,0,.6)}

@keyframes pulse{
  0%,100%{box-shadow:0 6px 24px rgba(230,194,0,.45)}
  50%{box-shadow:0 6px 40px rgba(230,194,0,.65)}
}

/* =========================================
   FOOTER
   ========================================= */
.site-footer{
  background:var(--black);
  padding:56px 24px 64px;
  text-align:center;
}
.footer-inner{max-width:600px;margin:0 auto}

/* ▲ Topへ戻るボタン */
.btn-scroll-top{
  display:inline-flex;align-items:center;gap:8px;
  color:var(--white);
  border:1px solid rgba(255,255,255,.55);
  padding:12px 36px;border-radius:24px;
  font-size:.9rem;letter-spacing:.1em;
  margin-bottom:26px;
  transition:var(--tr);
  cursor:pointer;
  background:var(--black);
}
.btn-scroll-top:hover{background:var(--gray-800);color:var(--white);border-color:var(--white)}

.footer-copy{font-size:.68rem;color:var(--gray-700);letter-spacing:.1em}

/* =========================================
   SCROLL FADE-IN
   ========================================= */
.fade-in{
  opacity:0;transform:translateY(22px);
  transition:opacity .55s ease,transform .55s ease;
}
.fade-in.visible{opacity:1;transform:translateY(0)}

/* =========================================
   RESPONSIVE — Tablet
   ========================================= */
@media(max-width:900px){

  .lp-section{padding:64px 0}

  .plan-main-card{grid-template-columns:1fr}
  .pmc-left::after{display:none}
  .pmc-left,.pmc-right{padding:36px 32px}

  .line-cta-inner{flex-direction:column}
  .line-cta-left{border-right:none;border-bottom:1px solid var(--gray-100);padding:40px 32px}
}

/* =========================================
   RESPONSIVE — Mobile (375px〜390px)
   ========================================= */
@media(max-width:600px){

  .hero{padding:72px 20px 64px}
  .hero-bg-lines span:nth-child(2){display:none}
  .container{padding:0 18px}
  .main-content{padding:0 0 80px}
  .plan-section{margin-bottom:64px}
  .lp-section{padding:52px 0}

  .header-inner{padding:0 14px}

  /* ヘッダーボタン（スマホ） */
  .btn-home-header{
    padding:7px 12px;
    font-size:.72rem;
  }
  .btn-line-header{
    padding:7px 12px;
    font-size:.72rem;
  }

  /* ヒーロー */
  .hero-catch{letter-spacing:.06em;line-height:1.5}
  .hero-sub{font-size:.9rem;letter-spacing:.06em}
  .hero-body{font-size:.88rem}

  /* CONCEPT */
  .essence-text{font-size:1rem;line-height:1.95}

  /* FOR YOU */
  .foryou-list li{font-size:.93rem;line-height:1.9}

  /* PRICE */
  .pmc-left,.pmc-right{padding:24px 18px}
  .pmc-title{font-size:1.15rem}
  .price-line-big strong{font-size:2.3rem}
  .price-line-badge{font-size:.68rem;padding:5px 10px}
  .btn-line-card{font-size:.88rem;padding:14px 16px}

  /* LINE CTA */
  .line-cta-left{padding:28px 18px}
  .lc-title{font-size:1.2rem}
  .lc-benefit-row{font-size:.78rem}
  .btn-line-main{
    padding:14px 24px;
    font-size:.88rem;
    width:100%;
    justify-content:center;
  }

  /* クロージング */
  .closing-section{padding:72px 20px}
  .closing-main{font-size:1.05rem;letter-spacing:.05em}
  .closing-lead{font-size:.9rem}
  .closing-sub{font-size:.88rem}

  /* 最終CTA */
  .final-cta-section{padding:60px 20px 80px}
  .btn-line-final{padding:18px 24px;font-size:.95rem}

  /* フロートボタン */
  .float-line-btn{bottom:20px;right:16px;width:62px;height:62px}
  .float-line-btn i{font-size:1.5rem}
  .float-line-btn span{font-size:.58rem}

  .ps-num{font-size:1.8rem}
}