:root{
  --primary:#881C28;
  --primaryDark:#6b1620;
  --primaryLight:#a82234;
  
  --graphite:#1a1f2e;
  --graphiteDark:#0f1419;
  
  --white:#ffffff;
  --bg:#fafbfc;
  --surface:#ffffff;
  --light:#f8fafc;
  
  --text:#111827;
  --textLight:#374151;
  
  --border:#e5e7eb;
  --borderDark:#cbd5e0;
  
  --radius:16px;
  --shadow: 0 1px 3px rgba(0,0,0,0.1), 0 4px 12px rgba(0,0,0,0.08);
  --shadowLg: 0 8px 32px rgba(0,0,0,0.12);
}

/* Reset & Base */
*{ box-sizing:border-box; margin:0; padding:0; }

html{
  font-size:16px;
  scroll-behavior:smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  line-height:1.6;
}

body{
  font-family:"Noto Sans JP", -apple-system, BlinkMacSystemFont, "SF Pro Display", "Segoe UI", sans-serif;
  color:var(--text);
  background:var(--bg);
  line-height:1.7;
  letter-spacing:-0.01em;
}

img{ max-width:100%; height:auto; display:block; border-radius:var(--radius); }
a{ color:inherit; text-decoration:none; transition:opacity 0.2s ease; }
a:hover{ opacity:0.85; }

.container{
  width:min(1200px, 95vw);
  margin:0 auto;
  padding:0 20px;
}

.nowrap{ white-space:nowrap; }

/* Ruby spacing */
.ruby-tight{
  ruby-align: center;
}

.ruby-tight rt{
  font-size:0.5em;
  font-weight:500;
  letter-spacing:-0.05em;
}

/* Header */
.header{
  background:rgba(255,255,255,0.98);
  border-bottom:1px solid var(--border);
  backdrop-filter:blur(20px);
}

.header__inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:20px 0;
  max-width:1200px;
  margin:0 auto;
}

.brand{
  font-size:20px;
  font-weight:800;
  letter-spacing:-0.02em;
  background:linear-gradient(135deg, #881C28 0%, #a82234 50%, #6b1620 100%);
  -webkit-background-clip:text;
  -webkit-text-fill-color:transparent;
  background-clip:text;
}

.nav{
  display:flex;
  gap:32px;
}

.nav__link{
  font-size:15px;
  font-weight:500;
  color:var(--textLight);
  padding:8px 0;
  position:relative;
  transition:all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.nav__link:hover,
.nav__link:focus{
  color:var(--primary);
}

.nav__link::after{
  content:'';
  position:absolute;
  bottom:-4px;
  left:0;
  width:0;
  height:2px;
  background:var(--primary);
  transition:width 0.3s ease;
}

.nav__link:hover::after{
  width:100%;
}

/* Hero */
.hero{
  position:relative;
  background:linear-gradient(135deg, #5d0f1a 0%, #881C28 35%, #a82234 65%, #881C28 100%);
  padding:80px 0 120px;
  color:var(--white);
  overflow:hidden;
  min-height:85vh;
  display:flex;
  align-items:center;
}

/* 背景の動的Orb */
.hero__bg{
  position:absolute;
  top:0;
  left:0;
  width:100%;
  height:100%;
  overflow:hidden;
  z-index:0;
}

.hero__orb{
  position:absolute;
  border-radius:50%;
  filter:blur(80px);
  opacity:0.4;
  animation:float 20s ease-in-out infinite;
}

.hero__orb--1{
  width:600px;
  height:600px;
  background:radial-gradient(circle, rgba(255,255,255,0.3) 0%, transparent 70%);
  top:-20%;
  right:-10%;
  animation-delay:0s;
}

.hero__orb--2{
  width:500px;
  height:500px;
  background:radial-gradient(circle, rgba(168,34,52,0.6) 0%, transparent 70%);
  bottom:-15%;
  left:-5%;
  animation-delay:7s;
}

.hero__orb--3{
  width:400px;
  height:400px;
  background:radial-gradient(circle, rgba(255,255,255,0.2) 0%, transparent 70%);
  top:40%;
  left:50%;
  animation-delay:14s;
}

@keyframes float{
  0%, 100%{ transform:translate(0, 0) scale(1); }
  33%{ transform:translate(30px, -30px) scale(1.1); }
  66%{ transform:translate(-20px, 20px) scale(0.9); }
}

/* Font Awesome装飾アイコン - ローテーション対応 */
.hero__icon{
  position:absolute;
  color:rgba(255,255,255,0.4);
  pointer-events:none;
}

/* 位置1（左上） - AとBが交互に */
.hero__icon--pos1a{
  font-size:115px;
  top:10%;
  left:8%;
  animation:iconRotateA 20s ease-in-out infinite;
}

.hero__icon--pos1b{
  font-size:115px;
  top:10%;
  left:8%;
  animation:iconRotateB 20s ease-in-out infinite;
}

/* 位置2（右上） */
.hero__icon--pos2a{
  font-size:105px;
  top:15%;
  right:12%;
  animation:iconRotateA 22s ease-in-out infinite;
  animation-delay:-5s;
}

.hero__icon--pos2b{
  font-size:105px;
  top:15%;
  right:12%;
  animation:iconRotateB 22s ease-in-out infinite;
  animation-delay:-5s;
}

/* 位置3（左下） */
.hero__icon--pos3a{
  font-size:110px;
  bottom:20%;
  left:15%;
  animation:iconRotateA 19s ease-in-out infinite;
  animation-delay:-10s;
}

.hero__icon--pos3b{
  font-size:110px;
  bottom:20%;
  left:15%;
  animation:iconRotateB 19s ease-in-out infinite;
  animation-delay:-10s;
}

/* 位置4（右下） */
.hero__icon--pos4a{
  font-size:120px;
  bottom:15%;
  right:10%;
  animation:iconRotateA 21s ease-in-out infinite;
  animation-delay:-3s;
}

.hero__icon--pos4b{
  font-size:120px;
  bottom:15%;
  right:10%;
  animation:iconRotateB 21s ease-in-out infinite;
  animation-delay:-3s;
}

/* 位置5（中央やや左） */
.hero__icon--pos5a{
  font-size:100px;
  top:48%;
  left:25%;
  animation:iconRotateA 23s ease-in-out infinite;
  animation-delay:-15s;
}

.hero__icon--pos5b{
  font-size:100px;
  top:48%;
  left:25%;
  animation:iconRotateB 23s ease-in-out infinite;
  animation-delay:-15s;
}

/* 位置6（中央やや右） */
.hero__icon--pos6a{
  font-size:95px;
  top:52%;
  right:22%;
  animation:iconRotateA 18s ease-in-out infinite;
  animation-delay:-8s;
}

.hero__icon--pos6b{
  font-size:95px;
  top:52%;
  right:22%;
  animation:iconRotateB 18s ease-in-out infinite;
  animation-delay:-8s;
}

/* ローテーションアニメーション - Aパターン（最初に表示） */
@keyframes iconRotateA{
  0%{ transform:scale(0) rotate(0deg); opacity:0; }
  5%{ transform:scale(1) rotate(12deg); opacity:0.4; }
  45%{ transform:scale(1) rotate(-8deg); opacity:0.4; }
  50%{ transform:scale(0) rotate(0deg); opacity:0; }
  100%{ transform:scale(0) rotate(0deg); opacity:0; }
}

/* ローテーションアニメーション - Bパターン（後から表示） */
@keyframes iconRotateB{
  0%{ transform:scale(0) rotate(0deg); opacity:0; }
  50%{ transform:scale(0) rotate(0deg); opacity:0; }
  55%{ transform:scale(1) rotate(-15deg); opacity:0.4; }
  95%{ transform:scale(1) rotate(10deg); opacity:0.4; }
  100%{ transform:scale(0) rotate(0deg); opacity:0; }
}

.hero__inner{
  position:relative;
  z-index:1;
}

.hero__content{
  max-width:900px;
  margin:0 auto;
  text-align:center;
}

.hero__title{
  font-size:clamp(38px, 9vw, 64px);
  font-weight:900;
  line-height:1.1;
  letter-spacing:-0.05em;
  margin-bottom:32px;
  color:var(--white);
  text-shadow:0 4px 24px rgba(0,0,0,0.3), 0 2px 8px rgba(0,0,0,0.2);
  word-break:keep-all;
  overflow-wrap:normal;
}

.hero__desc{
  font-size:clamp(16px, 2.8vw, 20px);
  font-weight:500;
  line-height:1.8;
  margin-bottom:48px;
  margin-top:24px;
  color:rgba(255,255,255,0.95);
  text-shadow:0 2px 12px rgba(0,0,0,0.2);
  max-width:680px;
  margin-left:auto;
  margin-right:auto;
}

.hero__cta{
  display:flex;
  justify-content:center;
  margin-bottom:20px;
}

/* 代表プロフィールリンク */
.hero__profile-link{
  text-align:center;
  margin-top:20px;
}

.hero__profile-link a{
  color:var(--white);
  font-size:14px;
  font-weight:400;
  text-decoration:underline;
  opacity:0.9;
  transition:opacity 0.3s ease;
}

.hero__profile-link a:hover{
  opacity:1;
}

/* Capabilities */
.capabilities{
  position:relative;
  margin-top:-80px;
  padding:0 0 80px;
  z-index:10;
}

.capabilities__grid{
  display:grid;
  gap:16px;
  max-width:900px;
  margin:0 auto;
}

.capabilities__box{
  background:var(--white);
  border:2px solid var(--border);
  border-radius:var(--radius);
  padding:40px 32px;
  box-shadow:var(--shadowLg);
  transition:all 0.3s ease;
}

.capabilities__box:hover{
  transform:translateY(-4px);
  box-shadow:0 16px 48px rgba(0,0,0,0.2);
  border-color:var(--primary);
}

.capabilities__connector{
  text-align:center;
  color:var(--primary);
  font-size:32px;
  animation:bounce 2s infinite;
}

@keyframes bounce{
  0%, 100%{ transform:translateY(0); }
  50%{ transform:translateY(-8px); }
}

.capabilities__title{
  font-size:20px;
  font-weight:800;
  color:var(--text);
  margin-bottom:24px;
  display:flex;
  align-items:center;
  gap:12px;
}

.capabilities__title i{
  color:var(--primary);
  font-size:18px;
  width:24px;
}

.capabilities__list{
  list-style:none;
  color:var(--text);
  font-size:17px;
  font-weight:600;
}

.capabilities__list li{
  margin:16px 0;
  padding-left:28px;
  position:relative;
  line-height:1.6;
}

.capabilities__list li::before{
  content:'▸';
  position:absolute;
  left:0;
  color:var(--primary);
  font-weight:900;
  font-size:16px;
}

.capabilities__sub{
  display:block;
  margin-top:4px;
  color:var(--textLight);
  font-weight:500;
  font-size:15px;
}

/* Buttons */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:16px 40px;
  font-size:16px;
  font-weight:700;
  border-radius:12px;
  border:2px solid transparent;
  transition:all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  cursor:pointer;
  backdrop-filter:blur(10px);
}

.btn--hero{
  background:var(--white);
  color:var(--primary);
  box-shadow:0 12px 48px rgba(0,0,0,0.3), 0 4px 16px rgba(0,0,0,0.2);
  font-weight:900;
  font-size:18px;
  padding:18px 48px;
  border:2px solid rgba(255,255,255,0.3);
}

.btn--hero:hover{
  transform:translateY(-4px) scale(1.03);
  box-shadow:0 16px 64px rgba(0,0,0,0.4), 0 8px 24px rgba(0,0,0,0.3);
}

.btn--primary{
  background:linear-gradient(135deg, var(--primary) 0%, var(--primaryDark) 100%);
  color:var(--white);
  box-shadow:var(--shadow);
}

.btn--primary:hover{
  transform:translateY(-2px);
  box-shadow:0 12px 40px rgba(136,28,40,0.3);
}

.btn--half{
  flex:1;
}

.btn:not(.btn--primary):not(.btn--hero){
  background:var(--white);
  color:var(--text);
  border-color:var(--borderDark);
  box-shadow:var(--shadow);
}

.btn:not(.btn--primary):not(.btn--hero):hover{
  border-color:var(--primary);
  color:var(--primary);
  transform:translateY(-1px);
}

/* Sections */
.section{
  padding:100px 0;
}

.section--light{
  background:var(--light);
}

.section--neutral{
  background:var(--white);
}

.section__head{
  text-align:center;
  margin-bottom:60px;
}

.section__title{
  font-size:clamp(26px, 5vw, 38px);
  font-weight:900;
  letter-spacing:-0.02em;
  margin-bottom:16px;
  line-height:1.2;
}

.section__title ruby{
  font-size:inherit;
}

.section__lead,
.section__note{
  font-size:17px;
  color:var(--textLight);
  max-width:600px;
  margin:0 auto;
  line-height:1.7;
}

/* Cards */
.cards{
  display:grid;
  gap:24px;
}

.card{
  background:var(--white);
  border-radius:var(--radius);
  padding:40px 32px;
  box-shadow:var(--shadow);
  transition:all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  border:1px solid transparent;
}

.card:hover{
  transform:translateY(-8px);
  box-shadow:var(--shadowLg);
  border-color:var(--borderDark);
}

.card__title{
  font-size:20px;
  font-weight:800;
  margin-bottom:20px;
  display:flex;
  align-items:center;
  gap:12px;
  color:var(--text);
}

.card__title i{
  color:var(--primary);
  font-size:18px;
  width:24px;
}

.card__list{
  list-style:none;
  color:var(--textLight);
  font-size:16px;
}

.card__list li{
  margin:12px 0;
  padding-left:24px;
  position:relative;
  line-height:1.8;
}

.card__list li::before{
  content:'▸';
  position:absolute;
  left:0;
  color:var(--primary);
  font-weight:900;
}

.card__sub{
  display:block;
  margin-top:4px;
  color:var(--textLight);
  font-weight:400;
  font-size:14px;
  line-height:1.6;
}

/* Company Info */
.companyinfo{
  max-width:700px;
  margin:0 auto;
}

.companyinfo__row{
  display:flex;
  justify-content:space-between;
  padding:24px 0;
  border-top:1px solid var(--border);
  gap:24px;
}

.companyinfo__row:first-child{
  border-top:none;
  padding-top:0;
}

.companyinfo__label{
  font-weight:700;
  color:var(--text);
  font-size:16px;
  min-width:120px;
  flex-shrink:0;
}

.companyinfo__value{
  font-weight:500;
  color:var(--textLight);
  text-align:right;
  font-size:16px;
}

/* Profile */
.profile{
  display:grid;
  grid-template-columns:1fr 2fr;
  gap:48px;
  align-items:start;
  max-width:1000px;
  margin:0 auto;
}

.profile__photo img{
  box-shadow:var(--shadowLg);
}

.profile__label{
  font-weight:700;
  color:var(--primary);
  margin-bottom:16px;
  font-size:15px;
  letter-spacing:0.05em;
  text-transform:uppercase;
}

.profile__text p{
  font-size:16px;
  line-height:1.9;
  color:var(--textLight);
}

/* Contact */
.contact{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:20px;
  max-width:700px;
  margin:0 auto;
}

/* Footer */
.footer{
  padding:48px 0 24px;
  border-top:1px solid var(--border);
  text-align:center;
}

.footer__inner small{
  color:var(--textLight);
  font-size:14px;
}

/* Mobile */
@media (max-width: 860px){
  .nav{ display:none; }
  
  .hero{
    padding:60px 0 100px;
    min-height:80vh;
  }
  
  .hero__title{
    font-size:clamp(36px, 11vw, 54px);
  }
  
  .hero__desc{
    font-size:16px;
    margin-bottom:40px;
  }
  
  .hero__icon{
    font-size:70px !important;
  }
  
  .capabilities{
    margin-top:-60px;
    padding:0 0 60px;
  }
  
  .capabilities__grid{
    gap:12px;
  }
  
  .capabilities__box{
    padding:32px 24px;
  }
  
  .section{
    padding:80px 0;
  }
  
  .section__title{
    font-size:clamp(22px, 6vw, 32px);
  }
  
  .profile{
    grid-template-columns:1fr;
    gap:32px;
  }
  
  .contact{
    grid-template-columns:1fr;
  }
  
  .companyinfo__row{
    flex-direction:column;
    gap:8px;
    text-align:left;
  }
  
  .companyinfo__value{
    text-align:left !important;
  }
}

/* Desktop - PC対応強化 */
@media (min-width: 1024px){
  .header{
    position:sticky;
    top:0;
    z-index:100;
  }
  
  /* ヒーローセクションをPC用に最適化 */
  .hero{
    min-height:75vh;
    padding:120px 0 140px;
  }
  
  .hero__title{
    font-size:64px;
    margin-bottom:36px;
  }
  
  .hero__desc{
    font-size:20px;
    line-height:1.75;
    margin-bottom:52px;
    margin-top:28px;
  }
  
  .btn--hero{
    font-size:19px;
    padding:20px 52px;
  }
  
  .hero__profile-link a{
    font-size:15px;
  }
  
  /* Capabilities - PC横並び */
  .capabilities{
    margin-top:-80px;
  }
  
  .capabilities__grid{
    grid-template-columns:1fr auto 1fr;
    align-items:center;
    gap:24px;
  }
  
  /* 矢印を右向き（>）にする */
  .capabilities__connector{
    display:flex;
    align-items:center;
    justify-content:center;
  }
  
  .capabilities__connector i{
    transform:rotate(90deg);
    display:block;
  }
  
  /* アニメーションも回転を維持 */
  @keyframes bounce{
    0%, 100%{ 
      transform:rotate(90deg) translateX(0); 
    }
    50%{ 
      transform:rotate(90deg) translateX(8px); 
    }
  }
  
  /* カード3列 */
  .cards{
    grid-template-columns:repeat(3, 1fr);
    gap:32px;
  }
}

/* 大画面用の追加調整 */
@media (min-width: 1400px){
  .hero{
    min-height:70vh;
  }
  
  .hero__title{
    font-size:72px;
  }
  
  .hero__desc{
    font-size:22px;
  }
}

/* Capabilities Connector - モバイル/デスクトップ切り替え */
.capabilities__connector-desktop{
  display:none;
}

.capabilities__connector-mobile{
  display:inline-block;
}

@media (min-width: 1024px){
  .capabilities__connector-desktop{
    display:inline-block !important;
  }
  
  .capabilities__connector-mobile{
    display:none !important;
  }
  
  .capabilities__connector i{
    transform:none !important;
  }
  
  @keyframes bounce{
    0%, 100%{ 
      transform:translateX(0) !important; 
    }
    50%{ 
      transform:translateX(8px) !important; 
    }
  }
}