:root{--blue:#2563eb;--blue-dark:#1d4ed8;--navy:#0f172a;--slate:#334155;--muted:#64748b;--line:#e2e8f0;--soft:#f8fafc;--green:#22c55e}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;padding-top:60px;color:#333;background:#f8f9fa;font-family:"Noto Sans JP","Yu Gothic","Hiragino Sans",sans-serif;line-height:1.6;-webkit-font-smoothing:antialiased}.site-nav{position:fixed;z-index:100;top:0;right:0;left:0;background:#fff;box-shadow:0 2px 10px #0000001a}.nav-container{width:min(1200px,calc(100% - 40px));height:60px;margin:auto;display:flex;align-items:center;justify-content:space-between}.nav-home{display:flex;align-items:center;gap:8px;color:#2c3e50;text-decoration:none;font-size:1.1rem;font-weight:700;transition:color .3s}.nav-home:hover{color:#ff8c00}.nav-menu{display:flex;align-items:center;gap:20px}.nav-menu a{position:relative;color:#666;text-decoration:none;font-size:.95rem;font-weight:500;transition:color .3s}.nav-menu a:hover,.nav-menu a.is-current{color:var(--blue)}.nav-menu a.is-current:after{content:"";position:absolute;right:0;bottom:-18px;left:0;height:3px;border-radius:3px 3px 0 0;background:var(--blue)}
.hero{position:relative;overflow:hidden;background:linear-gradient(135deg,#e0f2fe 0%,#f0fdf4 100%)}.hero-inner{width:min(1100px,calc(100% - 40px));min-height:570px;margin:auto;display:grid;grid-template-columns:1fr 1fr;align-items:center;gap:70px;padding:75px 0}.hero-copy{position:relative;z-index:2}.hero-label{display:flex;align-items:center;gap:10px;margin:0 0 20px;color:var(--blue);font-size:.76rem;font-weight:700;letter-spacing:.16em}.hero-label span{width:28px;height:2px;background:var(--blue)}.hero h1{margin:0 0 24px;color:var(--navy);font-size:clamp(2.65rem,4.7vw,4.25rem);font-weight:700;line-height:1.25;letter-spacing:-.045em}.hero h1 strong{color:var(--blue);font-weight:700}.hero-copy>p:not(.hero-label){max-width:570px;margin:0 0 34px;color:var(--slate);font-size:1rem;line-height:1.9}.primary-button{display:inline-flex;align-items:center;gap:22px;padding:13px 25px;border-radius:30px;color:#fff;background:var(--blue);box-shadow:0 4px 15px #2563eb4d;text-decoration:none;font-weight:700;transition:.3s}.primary-button span{font-size:1.1rem}.primary-button:hover{background:var(--blue-dark);transform:translateY(-2px);box-shadow:0 7px 22px #2563eb66}.hero-decoration{position:absolute;border-radius:50%;filter:blur(1px)}.decoration-one{width:330px;height:330px;top:-150px;right:8%;background:#bfdbfe66}.decoration-two{width:250px;height:250px;bottom:-140px;left:35%;background:#bbf7d066}
.hero-art{height:390px;position:relative;display:grid;place-items:center}.browser-card{width:100%;max-width:490px;overflow:hidden;border:1px solid #ffffffcc;border-radius:18px;background:#fff;box-shadow:0 25px 60px #0f172a1f;transform:rotate(1.5deg)}.browser-bar{height:43px;display:flex;align-items:center;gap:7px;padding:0 15px;border-bottom:1px solid #e5e7eb;background:#fff}.browser-bar i{width:8px;height:8px;border-radius:50%;background:#f87171}.browser-bar i:nth-child(2){background:#fbbf24}.browser-bar i:nth-child(3){background:#4ade80}.browser-bar span{margin:auto;color:#94a3b8;font-size:.67rem}.browser-content{padding:35px 30px 38px;background:#f8fafc}.mini-title{width:105px;height:10px;margin-bottom:26px;border-radius:10px;background:#cbd5e1}.mini-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.mini-card{height:125px;display:grid;place-items:center;border:1px solid var(--line);border-radius:12px;background:#fff;box-shadow:0 4px 12px #0f172a0a}.mini-card.selected{background:linear-gradient(145deg,#3b82f6,#2563eb);box-shadow:0 8px 20px #2563eb40}.mini-card b{color:#cbd5e1;font-size:1.35rem}.mini-card.selected b{color:#fff;font-size:1.6rem}.floating-chip{position:absolute;padding:11px 16px;border:1px solid #ffffffcc;border-radius:99px;background:#fffffff2;box-shadow:0 10px 25px #0f172a1a;color:var(--slate);font-size:.78rem;font-weight:600;backdrop-filter:blur(8px)}.chip-top{top:35px;right:-10px}.chip-top span{margin-right:7px;color:var(--blue)}.chip-bottom{bottom:38px;left:-18px}.chip-bottom b{display:inline-grid;place-items:center;width:21px;height:21px;margin-right:7px;border-radius:50%;color:#fff;background:var(--green)}
.tools-section{padding:90px 20px 110px;background:#fff}.section-container{max-width:1200px;margin:auto}.section-heading{text-align:center;margin-bottom:50px}.section-heading>p,.about-label{margin:0 0 7px;color:var(--blue);font-size:.75rem;font-weight:700;letter-spacing:.18em}.section-heading h2{position:relative;margin:0 0 25px;padding-bottom:15px;color:#1e293b;font-size:2.2rem;line-height:1.3}.section-heading h2:after{content:"";position:absolute;bottom:0;left:50%;width:60px;height:4px;border-radius:2px;background:var(--blue);transform:translateX(-50%)}.section-heading span{color:var(--muted);font-size:.95rem}.tool-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px}.tool-card{min-height:420px;overflow:hidden;display:flex;flex-direction:column;border:1px solid var(--line);border-radius:16px;color:inherit;background:var(--soft);box-shadow:0 4px 20px #0000000d;text-decoration:none;transition:transform .3s,box-shadow .3s,background .3s}.tool-card[href]:hover{transform:translateY(-8px);background:#fff;box-shadow:0 12px 30px #00000014}.tool-card[href]:focus-visible{outline:3px solid #60a5fa;outline-offset:4px}.tool-visual{height:175px;position:relative;display:grid;place-items:center;flex:0 0 auto}.tool-visual--blue{background:linear-gradient(135deg,#dbeafe,#bfdbfe)}.tool-visual--green{background:linear-gradient(135deg,#dcfce7,#d1fae5)}.tool-visual--gray{background:linear-gradient(135deg,#f1f5f9,#e2e8f0)}.tool-number{position:absolute;top:15px;right:17px;color:#64748b;font-size:.68rem;font-weight:700;letter-spacing:.1em}.document-icon{width:82px;height:105px;padding:18px 15px;border-radius:5px;background:#fff;box-shadow:0 12px 25px #2563eb26;transform:rotate(4deg)}.document-icon i{display:block;width:70%;height:4px;margin-bottom:9px;border-radius:4px;background:#cbd5e1}.document-icon i:first-child{width:45%;background:#3b82f6}.document-icon b{width:38px;height:29px;margin:13px 0 0 auto;display:grid;place-items:center;color:#fff;background:var(--blue);font-size:1rem}.tool-content{height:100%;display:flex;flex-direction:column;padding:25px 23px}.tool-type{margin-bottom:7px;color:var(--blue);font-size:.67rem;font-weight:700;letter-spacing:.13em}.tool-content h3{margin:0;color:#1e293b;font-size:1.15rem;line-height:1.5}.tool-content>p{margin:13px 0 20px;color:#64748b;font-size:.86rem;line-height:1.75}.tool-footer{display:flex;align-items:center;gap:5px;margin-top:auto;padding-top:18px;border-top:1px solid var(--line)}.tool-footer span{padding:4px 8px;border-radius:20px;color:#64748b;background:#e2e8f0;font-size:.68rem}.tool-footer b{width:31px;height:31px;display:grid;place-items:center;margin-left:auto;border-radius:50%;color:#fff;background:var(--blue);font-size:1rem}.plus-icon{width:72px;height:72px;position:relative;border:2px dashed #86efac;border-radius:50%}.plus-icon i{position:absolute;top:34px;left:22px;width:26px;height:2px;background:#22c55e}.plus-icon i:last-child{transform:rotate(90deg)}.tool-card--empty{box-shadow:none}.slot-mark{color:#94a3b8;font-size:.67rem;font-weight:700;letter-spacing:.16em}.placeholder-line{width:75%;height:9px;margin:10px 0;border-radius:8px;background:#e2e8f0}.placeholder-line.short{width:48%;margin-top:2px}
.about-tools{padding:85px 20px;background:#f8fafc}.about-inner{display:grid;grid-template-columns:1fr 1fr;align-items:center;gap:90px;max-width:1000px}.about-inner h2{margin:0;color:var(--navy);font-size:2rem;line-height:1.45}.about-inner>p{margin:0;padding-left:35px;border-left:4px solid var(--blue);color:#475569;font-size:1rem;line-height:2}.site-footer{padding:26px 20px;color:#fff;background:#2c3e50}.footer-container{max-width:1000px;margin:auto;display:flex;align-items:center;justify-content:space-between;gap:25px}.site-footer p{margin:0;font-size:.85rem;opacity:.8}.site-footer div div{display:flex;gap:12px;color:#ffffff80;font-size:.84rem}.site-footer a{color:#87ceeb;text-decoration:none}.site-footer a:hover{color:#6bb6ff;text-decoration:underline}
@media(max-width:1020px){.hero-inner{gap:35px}.tool-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.tool-card{min-height:400px}}@media(max-width:768px){body{padding-top:60px}.nav-menu{display:none}.hero-inner{min-height:auto;grid-template-columns:1fr;padding:65px 0}.hero-copy{text-align:center}.hero-label{justify-content:center}.hero-copy>p:not(.hero-label){margin-right:auto;margin-left:auto}.hero-art{height:330px}.browser-card{max-width:470px}.tools-section{padding:65px 20px 80px}.section-heading h2{font-size:1.8rem}.about-tools{padding:60px 20px}.about-inner{grid-template-columns:1fr;gap:28px;text-align:center}.about-inner>p{padding:20px 0 0;border-top:4px solid var(--blue);border-left:0}.footer-container{flex-direction:column;text-align:center}}@media(max-width:520px){.hero-inner{width:calc(100% - 32px);padding:55px 0}.hero h1{font-size:2.35rem}.hero-copy>p:not(.hero-label){font-size:.93rem}.hero-art{height:260px}.browser-card{transform:none}.browser-content{padding:25px 18px}.mini-grid{gap:7px}.mini-card{height:80px}.floating-chip{font-size:.67rem}.chip-top{top:19px;right:-7px}.chip-bottom{bottom:15px;left:-6px}.tool-grid{grid-template-columns:1fr}.empty-slot{display:none}.tool-card{min-height:390px}.about-inner h2{font-size:1.7rem}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.primary-button,.tool-card{transition:none}}
.tool-visual--orange{background:linear-gradient(135deg,#ffedd5,#fef3c7)}
.chain-icon{width:86px;height:86px;position:relative;transform:rotate(-36deg)}.chain-icon i{position:absolute;width:54px;height:30px;border:7px solid #f59e0b;border-radius:20px}.chain-icon i:first-child{top:8px;left:0}.chain-icon i:last-child{right:0;bottom:8px}.chain-icon:after{content:"";position:absolute;top:41px;left:30px;width:26px;height:5px;border-radius:5px;background:#f59e0b}
.qr-icon{width:86px;height:86px;display:grid;grid-template-columns:repeat(3,1fr);grid-template-rows:repeat(3,1fr);gap:7px;padding:9px;border-radius:8px;background:#fff;box-shadow:0 12px 25px #16a34a20}.qr-icon i{border-radius:3px;background:#16a34a}.qr-icon i:nth-child(2){grid-column:3}.qr-icon i:nth-child(3){grid-row:2;grid-column:2}.qr-icon i:nth-child(4){grid-row:3;grid-column:1}.qr-icon i:nth-child(5){grid-row:3;grid-column:3}.qr-icon i:nth-child(6){grid-row:1;grid-column:2;width:45%;height:45%;align-self:end}.qr-icon i:nth-child(7){grid-row:2;grid-column:3;width:45%;height:45%;justify-self:end}