*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--primary:#1a73e8;--primary-dark:#1557b0;--text:#1f2937;--text-light:#6b7280;--bg:#ffffff;--bg-gray:#f3f4f6;--border:#e5e7eb;--radius:8px;--shadow:0 1px 3px rgba(0,0,0,.1);--shadow-lg:0 4px 16px rgba(0,0,0,.12);--max-w:1200px;--font:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif}html{font-size:16px;scroll-behavior:smooth}body{font-family:var(--font);color:var(--text);background:var(--bg);line-height:1.6;-webkit-font-smoothing:antialiased}img{max-width:100%;height:auto;display:block}a{color:var(--primary);text-decoration:none}a:hover{text-decoration:underline}.container{max-width:var(--max-w);margin:0 auto;padding:0 20px}.site-header{background:#fff;border-bottom:1px solid var(--border);position:sticky;top:0;z-index:100}.site-header .container{display:flex;align-items:center;justify-content:space-between;height:64px}.site-logo{font-size:1.25rem;font-weight:700;color:var(--text)}.site-nav{display:flex;gap:24px;list-style:none}.site-nav a{color:var(--text-light);font-size:.9rem;transition:color .2s}.site-nav a:hover{color:var(--primary);text-decoration:none}.hero{padding:80px 0 60px;text-align:center;background:linear-gradient(135deg,#f0f7ff,#e8f0fe)}.hero h1{font-size:2.5rem;line-height:1.2;margin-bottom:16px}.hero .subtitle{font-size:1.2rem;color:var(--text-light);margin-bottom:32px;max-width:600px;margin-left:auto;margin-right:auto}.hero .keyword{color:var(--primary);font-weight:600}.btn{display:inline-flex;align-items:center;gap:8px;padding:14px 32px;border-radius:var(--radius);font-size:1rem;font-weight:600;cursor:pointer;border:none;transition:all .2s}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover{background:var(--primary-dark);text-decoration:none;transform:translateY(-1px);box-shadow:var(--shadow-lg)}.btn-outline{background:transparent;color:var(--primary);border:2px solid var(--primary)}.btn-outline:hover{background:var(--primary);color:#fff;text-decoration:none}.btn-lg{padding:16px 40px;font-size:1.1rem}.btn-group{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}.features{padding:80px 0}.section-title{font-size:2rem;text-align:center;margin-bottom:48px}.feature-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:24px}.feature-card{background:#fff;border:1px solid var(--border);border-radius:12px;padding:32px;transition:box-shadow .2s}.feature-card:hover{box-shadow:var(--shadow-lg)}.feature-icon{width:48px;height:48px;background:var(--primary);border-radius:12px;display:flex;align-items:center;justify-content:center;margin-bottom:16px;font-size:1.5rem;color:#fff}.feature-card h3{font-size:1.15rem;margin-bottom:8px}.feature-card p{color:var(--text-light);font-size:.95rem}.info-section{padding:60px 0;background:var(--bg-gray)}.info-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center}.info-text h2{font-size:1.75rem;margin-bottom:16px}.info-text p{color:var(--text-light);margin-bottom:16px}.info-text ul{list-style:none;margin-bottom:24px}.info-text li{padding:6px 0 6px 24px;position:relative;color:var(--text-light)}.info-text li:before{content:"✓";position:absolute;left:0;color:var(--primary);font-weight:700}.info-image{background:#e8f0fe;border-radius:16px;aspect-ratio:4/3;display:flex;align-items:center;justify-content:center;font-size:4rem}.steps{padding:80px 0}.step-list{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:32px;counter-reset:step}.step-item{text-align:center;counter-increment:step}.step-num{width:48px;height:48px;border-radius:50%;background:var(--primary);color:#fff;display:inline-flex;align-items:center;justify-content:center;font-size:1.25rem;font-weight:700;margin-bottom:16px}.step-num:before{content:counter(step)}.step-item h3{font-size:1.05rem;margin-bottom:8px}.step-item p{color:var(--text-light);font-size:.9rem}.faq{padding:80px 0;background:var(--bg-gray)}.faq-list{max-width:800px;margin:0 auto}.faq-item{background:#fff;border-radius:var(--radius);margin-bottom:12px;border:1px solid var(--border)}.faq-item summary{padding:16px 20px;cursor:pointer;font-weight:600;font-size:1rem;list-style:none;display:flex;align-items:center;justify-content:space-between}.faq-item summary:after{content:"＋";font-size:1.2rem;color:var(--text-light)}.faq-item[open] summary:after{content:"－"}.faq-item .faq-body{padding:0 20px 16px;color:var(--text-light);font-size:.95rem}.cta{padding:80px 0;text-align:center;background:linear-gradient(135deg,#1a73e8,#4285f4)}.cta h2{color:#fff;font-size:2rem;margin-bottom:16px}.cta p{color:#ffffffd9;margin-bottom:32px;font-size:1.1rem}.cta .btn-primary{background:#fff;color:var(--primary)}.cta .btn-primary:hover{background:#f0f7ff}.site-footer{padding:40px 0;background:#1f2937;color:#9ca3af;font-size:.85rem}.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:32px}.footer-brand{font-size:1.1rem;font-weight:700;color:#fff;margin-bottom:8px}.footer-col h4{color:#fff;font-size:.95rem;margin-bottom:12px}.footer-col ul{list-style:none}.footer-col li{margin-bottom:6px}.footer-col a{color:#9ca3af;font-size:.85rem}.footer-col a:hover{color:#fff}.footer-bottom{border-top:1px solid #374151;margin-top:32px;padding-top:20px;text-align:center}.breadcrumb{padding:12px 0;font-size:.85rem;color:var(--text-light)}.breadcrumb a{color:var(--text-light)}.breadcrumb span{margin:0 6px}@media(max-width:768px){.hero h1{font-size:1.75rem}.hero .subtitle{font-size:1rem}.info-grid{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr 1fr}.site-nav{gap:16px}.feature-grid{grid-template-columns:1fr}}@media(max-width:480px){.hero{padding:48px 0 40px}.btn-group{flex-direction:column;align-items:center}.footer-grid{grid-template-columns:1fr}.site-nav{display:none}}.product-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:24px;padding:80px 0}.product-card{background:#fff;border:1px solid var(--border);border-radius:12px;padding:32px;text-align:center;transition:all .2s}.product-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-4px);text-decoration:none}.product-card .card-icon{font-size:3rem;margin-bottom:16px}.product-card h3{font-size:1.2rem;margin-bottom:8px;color:var(--text)}.product-card p{color:var(--text-light);font-size:.9rem;margin-bottom:16px}.dl-table{width:100%;border-collapse:collapse;font-size:.95rem;margin-bottom:24px}.dl-table thead tr{background:var(--bg-gray)}.dl-table th{padding:12px 16px;text-align:left;border-bottom:2px solid var(--border);font-weight:600}.dl-table td{padding:10px 16px;border-bottom:1px solid var(--border)}.dl-table .dl-btn{display:inline-block;padding:6px 16px;background:var(--primary);color:#fff;border-radius:4px;font-size:.85rem;font-weight:500}.dl-table .dl-btn:hover{background:var(--primary-dark);text-decoration:none}.reviews{padding:60px 0;background:var(--bg-gray)}.review-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:20px;max-width:900px;margin:0 auto}.review-card{background:#fff;border-radius:var(--radius);padding:20px;border:1px solid var(--border)}.review-card .stars{color:#f59e0b;margin-bottom:8px;font-size:1rem}.review-card p{color:var(--text-light);font-size:.9rem;font-style:italic;margin-bottom:12px}.review-card .reviewer{font-size:.85rem;font-weight:600;color:var(--text)}.article{max-width:800px;margin:0 auto;padding:40px 0}.article h2{font-size:1.5rem;margin:40px 0 16px;padding-top:16px;border-top:1px solid var(--border)}.article h2:first-child{border-top:none;margin-top:0}.article h3{font-size:1.2rem;margin:24px 0 12px}.article p{color:var(--text-light);margin-bottom:12px;line-height:1.8}.article ul,.article ol{color:var(--text-light);margin-bottom:16px;padding-left:24px}.article li{margin-bottom:6px;line-height:1.7}.article strong{color:var(--text)}.article .note{background:#fff3cd;border:1px solid #ffc107;border-radius:var(--radius);padding:12px 16px;margin:16px 0;font-size:.9rem;color:#856404}.article .tip{background:#d1ecf1;border:1px solid #17a2b8;border-radius:var(--radius);padding:12px 16px;margin:16px 0;font-size:.9rem;color:#0c5460}.version-badge{display:inline-block;background:var(--primary);color:#fff;padding:4px 12px;border-radius:20px;font-size:.8rem;font-weight:600;margin-right:8px}.date-badge{display:inline-block;background:var(--bg-gray);color:var(--text-light);padding:4px 12px;border-radius:20px;font-size:.8rem}