:root {
  --navy:#0A2342;--teal:#00C9A7;--orange:#FF6B35;
  --sky:#F0F7FF;--white:#FFFFFF;
  --gray-200:#e2e8f0;--gray-400:#94a3b8;--gray-700:#334155;
  --text:#1e293b;--shadow:0 4px 24px rgba(10,35,66,0.10);
  --radius:12px;--radius-sm:8px;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;}
body{font-family:'Noto Sans JP','Hiragino Kaku Gothic ProN',sans-serif;color:var(--text);background:var(--white);line-height:1.75;font-size:16px;}
h1,h2,h3,h4{font-weight:700;line-height:1.3;}
h1{font-size:clamp(1.8rem,5vw,2.8rem);}
h2{font-size:clamp(1.4rem,3vw,2rem);}
h3{font-size:1.2rem;}
p{color:#475569;}
a{text-decoration:none;color:var(--navy);}
.container{width:100%;max-width:1140px;margin:0 auto;padding:0 20px;}
.section{padding:72px 0;}.section-sm{padding:48px 0;}
.section-title{text-align:center;margin-bottom:12px;color:var(--navy);}
.section-sub{text-align:center;color:var(--gray-400);margin-bottom:48px;font-size:1rem;}
.navbar{position:sticky;top:0;z-index:100;background:rgba(255,255,255,0.95);backdrop-filter:blur(10px);border-bottom:1px solid var(--gray-200);padding:0 20px;}
.navbar-inner{max-width:1140px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;height:64px;}
.navbar-logo{font-size:1.3rem;font-weight:800;color:var(--navy);display:flex;align-items:center;gap:8px;}
.navbar-logo .drop{width:28px;height:28px;background:linear-gradient(135deg,var(--teal),#0099cc);border-radius:50% 50% 50% 0;transform:rotate(-45deg);display:inline-block;}
.navbar-nav{display:flex;gap:24px;list-style:none;align-items:center;}
.navbar-nav a{font-size:0.9rem;color:var(--gray-700);font-weight:500;transition:color 0.2s;}
.navbar-nav a:hover{color:var(--teal);}
.nav-submit{background:var(--orange)!important;color:white!important;padding:8px 18px;border-radius:20px;font-weight:600!important;font-size:0.85rem!important;}
.hamburger{display:none;flex-direction:column;gap:5px;cursor:pointer;background:none;border:none;padding:4px;}
.hamburger span{display:block;width:24px;height:2px;background:var(--navy);border-radius:2px;}
.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 28px;border-radius:30px;font-weight:700;font-size:0.95rem;cursor:pointer;border:none;transition:all 0.2s;text-decoration:none;}
.btn-primary{background:linear-gradient(135deg,var(--teal),#0099cc);color:white;box-shadow:0 4px 16px rgba(0,201,167,0.3);}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 24px rgba(0,201,167,0.4);}
.btn-orange{background:var(--orange);color:white;box-shadow:0 4px 16px rgba(255,107,53,0.3);}
.btn-orange:hover{transform:translateY(-2px);}
.btn-outline{background:transparent;color:var(--navy);border:2px solid var(--navy);}
.btn-outline:hover{background:var(--navy);color:white;}
.btn-sm{padding:8px 18px;font-size:0.85rem;}
.card{background:white;border:1px solid var(--gray-200);border-radius:var(--radius);padding:24px;transition:transform 0.2s,box-shadow 0.2s;}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:var(--teal);}
.tool-card{background:white;border:1px solid var(--gray-200);border-radius:var(--radius);padding:24px;display:flex;flex-direction:column;gap:12px;transition:transform 0.2s,box-shadow 0.2s;}
.tool-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:var(--teal);}
.tool-card-header{display:flex;align-items:flex-start;gap:14px;}
.tool-icon{width:48px;height:48px;border-radius:10px;display:flex;align-items:center;justify-content:center;font-size:1.5rem;flex-shrink:0;}
.tool-name{font-size:1.05rem;font-weight:700;color:var(--navy);}
.tool-desc{font-size:0.88rem;color:#64748b;line-height:1.6;}
.tool-meta{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:8px;}
.badge{display:inline-flex;align-items:center;gap:4px;padding:3px 10px;border-radius:20px;font-size:0.75rem;font-weight:600;}
.badge-teal{background:rgba(0,201,167,0.12);color:#00a884;}
.badge-orange{background:rgba(255,107,53,0.12);color:#cc5722;}
.badge-blue{background:rgba(59,130,246,0.12);color:#1d4ed8;}
.badge-green{background:rgba(34,197,94,0.12);color:#16a34a;}
.badge-purple{background:rgba(139,92,246,0.12);color:#7c3aed;}
.badge-freemium{background:rgba(59,130,246,0.12);color:#1e40af;}
.badge-paid{background:rgba(245,158,11,0.12);color:#b45309;}
.rating{display:flex;align-items:center;gap:4px;font-size:0.85rem;color:#f59e0b;font-weight:600;}
.category-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(130px,1fr));gap:14px;}
.cat-chip{background:white;border:1.5px solid var(--gray-200);border-radius:var(--radius);padding:18px 14px;text-align:center;cursor:pointer;transition:all 0.2s;text-decoration:none;display:block;}
.cat-chip:hover,.cat-chip.active{border-color:var(--teal);background:rgba(0,201,167,0.05);transform:translateY(-2px);}
.cat-chip .icon{font-size:1.8rem;margin-bottom:8px;display:block;}
.cat-chip .label{font-size:0.82rem;font-weight:600;color:var(--navy);display:block;}
.cat-chip .count{font-size:0.75rem;color:var(--gray-400);display:block;margin-top:2px;}
.search-wrap{position:relative;max-width:600px;margin:0 auto;}
.search-input{width:100%;padding:16px 56px 16px 22px;border:2px solid var(--gray-200);border-radius:50px;font-size:1rem;color:var(--text);background:white;box-shadow:0 4px 24px rgba(10,35,66,0.08);transition:border-color 0.2s;font-family:inherit;}
.search-input:focus{outline:none;border-color:var(--teal);box-shadow:0 0 0 4px rgba(0,201,167,0.15);}
.search-btn{position:absolute;right:6px;top:50%;transform:translateY(-50%);background:linear-gradient(135deg,var(--teal),#0099cc);color:white;border:none;border-radius:50px;width:44px;height:44px;cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:1.1rem;}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
footer{background:var(--navy);color:rgba(255,255,255,0.7);padding:48px 0 24px;}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:32px;margin-bottom:40px;}
footer h4{color:white;font-size:0.95rem;margin-bottom:14px;}
footer ul{list-style:none;}
footer ul li{margin-bottom:8px;}
footer ul a{color:rgba(255,255,255,0.6);font-size:0.88rem;transition:color 0.2s;}
footer ul a:hover{color:var(--teal);}
.footer-logo{font-size:1.2rem;font-weight:800;color:white;margin-bottom:10px;}
.footer-copy{border-top:1px solid rgba(255,255,255,0.1);padding-top:20px;text-align:center;font-size:0.82rem;color:rgba(255,255,255,0.4);}
.hero-bg{position:relative;overflow:hidden;}
.ripple-ring{position:absolute;border-radius:50%;border:1px solid rgba(0,201,167,0.2);animation:ripple 4s infinite ease-out;pointer-events:none;}
@keyframes ripple{0%{transform:scale(0.8);opacity:0.6;}100%{transform:scale(2.5);opacity:0;}}
.newsletter-form{display:flex;gap:10px;max-width:500px;margin:0 auto;}
.newsletter-input{flex:1;padding:13px 18px;border:2px solid rgba(255,255,255,0.2);border-radius:30px;background:rgba(255,255,255,0.1);color:white;font-size:0.95rem;font-family:inherit;}
.newsletter-input:focus{outline:none;border-color:var(--teal);}
.filter-bar{display:flex;gap:10px;flex-wrap:wrap;align-items:center;padding:20px 0;border-bottom:1px solid var(--gray-200);margin-bottom:32px;}
.filter-chip{padding:7px 16px;border-radius:20px;border:1.5px solid var(--gray-200);background:white;font-size:0.85rem;color:var(--gray-700);cursor:pointer;transition:all 0.2s;font-family:inherit;}
.filter-chip:hover,.filter-chip.active{border-color:var(--teal);background:rgba(0,201,167,0.08);color:var(--navy);}
.compare-table{width:100%;border-collapse:collapse;}
.compare-table th{background:var(--navy);color:white;padding:14px 20px;text-align:left;}
.compare-table td{padding:13px 20px;border-bottom:1px solid var(--gray-200);font-size:0.9rem;}
.compare-table tr:hover td{background:var(--sky);}
.check{color:var(--teal);font-weight:700;}.cross{color:#ef4444;}
.detail-hero{background:linear-gradient(135deg,var(--sky) 0%,#e0f2fe 100%);padding:48px 0;}
.pros-cons{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin:24px 0;}
.pros,.cons{background:white;border-radius:var(--radius);padding:20px 24px;}
.pros{border-left:4px solid var(--teal);}.cons{border-left:4px solid #ef4444;}
.pros h4{color:#059669;margin-bottom:12px;}.cons h4{color:#ef4444;margin-bottom:12px;}
.pros li,.cons li{list-style:none;font-size:0.9rem;color:#475569;padding:5px 0;padding-left:20px;position:relative;}
.pros li::before{content:"✓";position:absolute;left:0;color:var(--teal);font-weight:700;}
.cons li::before{content:"✗";position:absolute;left:0;color:#ef4444;font-weight:700;}
.blog-card{background:white;border:1px solid var(--gray-200);border-radius:var(--radius);overflow:hidden;transition:transform 0.2s,box-shadow 0.2s;}
.blog-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);}
.blog-thumb{width:100%;height:180px;display:flex;align-items:center;justify-content:center;font-size:3.5rem;}
.blog-body{padding:20px;}
.blog-tag{font-size:0.75rem;font-weight:700;color:var(--teal);margin-bottom:8px;text-transform:uppercase;}
.blog-title{font-size:1rem;font-weight:700;color:var(--navy);margin-bottom:8px;line-height:1.5;}
.blog-date{font-size:0.8rem;color:var(--gray-400);}
.form-group{margin-bottom:20px;}
.form-label{display:block;font-weight:600;font-size:0.9rem;margin-bottom:6px;color:var(--navy);}
.form-input,.form-select,.form-textarea{width:100%;padding:12px 16px;border:1.5px solid var(--gray-200);border-radius:var(--radius-sm);font-size:0.95rem;color:var(--text);font-family:inherit;transition:border-color 0.2s;background:white;}
.form-input:focus,.form-select:focus,.form-textarea:focus{outline:none;border-color:var(--teal);box-shadow:0 0 0 3px rgba(0,201,167,0.12);}
.form-textarea{min-height:120px;resize:vertical;}
@media(max-width:768px){
  .navbar-nav{display:none;}
  .navbar-nav.open{display:flex;flex-direction:column;position:absolute;top:64px;left:0;right:0;background:white;padding:20px;border-bottom:1px solid var(--gray-200);z-index:99;}
  .hamburger{display:flex;}
  .grid-3,.grid-4{grid-template-columns:1fr;}
  .grid-2{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .pros-cons{grid-template-columns:1fr;}
  .newsletter-form{flex-direction:column;}
  .section{padding:48px 0;}
  .category-grid{grid-template-columns:repeat(4,1fr);}
}
@media(max-width:480px){.category-grid{grid-template-columns:repeat(3,1fr);}.footer-grid{grid-template-columns:1fr;}}
.text-center{text-align:center;}.text-teal{color:var(--teal);}.mt-6{margin-top:24px;}.mb-4{margin-bottom:16px;}.hidden{display:none;}