:root{--blue:#3f8fe5;--blue-dark:#2875c7;--blue-soft:#eaf4ff;--ink:#1f2d3d;--text:#34495e;--muted:#6f7f90;--line:#d8e4f0;--light:#f4f7fb;--light-2:#eef3f9;--shadow:0 12px 32px rgba(43,97,153,.10)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:#fff;color:var(--text);font-family:Arial,"Microsoft YaHei",sans-serif;line-height:1.75;overflow-x:hidden}body.drawer-open{overflow:hidden}a{color:#2f83d8}img{max-width:100%}.container{width:min(1160px,calc(100% - 40px));margin:0 auto}.site-header{position:sticky;top:0;width:100%;z-index:9999;background:rgba(255,255,255,.94);backdrop-filter:blur(12px);border-bottom:1px solid #e5edf5;box-shadow:0 6px 20px rgba(43,97,153,.08)}.header-inner{max-width:1240px;min-height:70px;margin:0 auto;padding:0 20px;display:flex;align-items:center;justify-content:space-between;gap:18px}.site-logo{display:inline-flex;align-items:center;flex:0 0 auto}.site-logo img{display:block;max-height:44px;width:auto}.nav-core{display:flex;align-items:center;justify-content:center;gap:10px;white-space:nowrap}.nav-core a{color:var(--text);text-decoration:none;padding:8px 10px;border-radius:8px;font-size:15px}.nav-core a:hover,.nav-core 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12px;color:var(--text);text-decoration:none;border:1px solid #e5edf5;border-radius:8px}.drawer-nav a:hover{background:var(--blue-soft);color:var(--blue-dark)}.drawer-download{width:100%}.hero{position:relative;overflow:hidden;padding:76px 0 66px;background:linear-gradient(180deg,#fff 0%,#f6faff 100%)}.hero:before,.hero:after{content:"";position:absolute;border-radius:50%;background:#eaf4ff;z-index:0}.hero:before{width:420px;height:420px;right:-170px;top:-180px}.hero:after{width:220px;height:220px;left:-100px;bottom:-90px}.hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:1.05fr .95fr;align-items:center;gap:60px}.eyebrow{display:inline-flex;padding:6px 12px;border-radius:999px;background:var(--blue-soft);color:var(--blue-dark);font-weight:700;font-size:14px}.hero h1,.page-hero h1{font-size:clamp(38px,5vw,62px);line-height:1.15;margin:18px 0 14px;color:var(--ink);letter-spacing:-1px}.hero-subtitle{font-size:clamp(20px,2.3vw,28px);line-height:1.5;color:var(--blue-dark);margin:0 0 18px}.hero-copy{font-size:17px;color:var(--muted);max-width:720px}.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin:28px 0 22px}.hero-links{display:flex;flex-wrap:wrap;gap:18px;font-size:14px}.hero-links a{text-decoration:none}.selling-points{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:24px}.selling-points span{padding:10px 12px;background:#fff;border:1px solid var(--line);border-radius:8px;color:var(--text);font-size:14px}.hero-visual img{max-width:100%;height:auto;object-fit:contain;display:block;margin:auto;filter:drop-shadow(0 28px 36px rgba(43,97,153,.18))}.section{padding:84px 0}.section-light{background:var(--light)}.section-soft{background:var(--light-2)}.section-head{max-width:760px;margin:0 auto 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solid var(--blue);padding:24px;border-radius:8px;box-shadow:0 8px 24px rgba(43,97,153,.06)}.notice small{color:var(--blue-dark);font-weight:700}.notice h3{margin:8px 0}.review-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.review-card{padding:24px}.review-card p{margin-top:0}.review-card strong{color:var(--blue-dark)}.faq-list{display:grid;gap:14px}.faq-card{padding:0 22px}.faq-card details{padding:18px 0}.faq-card summary{cursor:pointer;font-weight:700;color:var(--ink)}.faq-card p{color:var(--muted)}.risk-box{border:1px solid #b9d4ee;background:#f7fbff;border-radius:10px;padding:28px}.risk-box h2{margin-top:0}.page-hero{padding:70px 0 54px;background:linear-gradient(180deg,#f5faff 0%,#fff 100%);text-align:center;border-bottom:1px solid #e5edf5}.page-hero h1{font-size:clamp(36px,5vw,56px)}.page-hero p{max-width:760px;margin:0 auto;color:var(--muted);font-size:18px}.article{padding:70px 0}.article-wrap{width:min(900px,calc(100% - 40px));margin:0 auto}.article 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@media(max-width:768px){.header-inner{min-height:62px;padding:0 16px;gap:10px}.site-logo img{max-height:36px}.nav-core{display:none}.header-download{min-height:44px;padding:0 14px;font-size:14px}.hero{padding:48px 0}.hero-grid,.split,.dual-grid{grid-template-columns:1fr}.hero-copy{text-align:left}.hero-visual{order:2}.selling-points{grid-template-columns:1fr}.section{padding:60px 0}.container,.article-wrap{width:min(100% - 32px,1160px)}.category-grid,.review-grid,.notice-grid,.glossary-grid,.step-grid{grid-template-columns:1fr}.category-card.full{grid-column:auto}.info-grid{grid-template-columns:1fr}.split.reverse .feature-image,.split.reverse .feature-copy{order:initial}.feature-image img{max-height:320px;margin:auto}.footer-grid{grid-template-columns:1fr 1fr}.footer-grid>div:last-child{grid-column:auto}.footer-brand{grid-column:1/-1}.page-hero{padding:52px 0 40px}.article{padding:52px 0}.drawer-nav{grid-template-columns:1fr}.hero h1{font-size:40px}.hero-subtitle{font-size:21px}.hero-actions .main-btn,.hero-actions .ghost-btn{width:100%}}
@media(max-width:430px){.header-inner{padding:0 10px}.header-download{padding:0 10px;font-size:13px}.menu-button{width:44px}.site-logo img{max-height:32px}.footer-grid{grid-template-columns:1fr}.footer-brand{grid-column:auto}.maintenance-card{padding:30px 22px}.maintenance-card h1{font-size:30px}}