:root{--blue:#3f8fe5;--blue-dark:#2875c7;--blue-soft:#eaf4ff;--bg:#fff;--light:#f4f7fb;--light2:#eef3f9;--title:#1f2d3d;--text:#34495e;--muted:#6f7f90;--line:#d8e4f0;--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.menu-open{overflow:hidden}a{color:inherit}img{max-width:100%}.skip-link{position:fixed;left:12px;top:-60px;z-index:11000;background:#fff;color:var(--blue-dark);padding:10px 16px;border:2px solid var(--blue);border-radius:8px}.skip-link:focus{top:12px}.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: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;gap:8px;margin-left:auto}.nav-core a{color:var(--text);text-decoration:none;padding:8px 10px;border-radius:8px;white-space:nowrap;font-size:15px}.nav-core a:hover,.nav-core a.active{color:var(--blue-dark);background:var(--blue-soft)}.header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}.main-btn,.outline-btn,.text-btn{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:0 22px;border-radius:8px;text-decoration:none;font-weight:700;position:relative;z-index:2;pointer-events:auto;touch-action:manipulation;transition:.2s}.main-btn{color:#fff;background:var(--blue);box-shadow:0 10px 24px rgba(63,143,229,.22)}.main-btn:hover{background:#2f7fd3;transform:translateY(-1px)}.main-btn:focus,.outline-btn:focus,.text-btn:focus,.menu-btn:focus,.drawer-close:focus{outline:3px solid rgba(63,143,229,.35);outline-offset:3px}.outline-btn{color:var(--blue-dark);border:1px solid var(--blue);background:#fff}.outline-btn:hover{background:var(--blue-soft)}.text-btn{color:#2f83d8;padding-left:0;padding-right:0}.menu-btn{width:44px;height:44px;border:1px solid var(--line);border-radius:8px;background:#fff;display:grid;place-content:center;gap:5px;cursor:pointer}.menu-btn span{display:block;width:20px;height:2px;background:var(--title);border-radius:2px}.drawer-mask{position:fixed;inset:0;background:rgba(15,35,55,.38);z-index:10000;opacity:0;transition:.22s}.drawer-mask.show{opacity:1}.drawer{position:fixed;right:0;top:0;width:min(390px,88vw);height:100vh;background:#fff;z-index:10001;transform:translateX(102%);transition:.25s;box-shadow:-16px 0 40px rgba(22,56,90,.18);overflow-y:auto}.drawer.open{transform:none}.drawer-head{height:72px;padding:0 20px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid #e5edf5}.drawer-close{width:44px;height:44px;border:0;border-radius:8px;background:var(--light);font-size:30px;cursor:pointer;color:var(--title)}.drawer-nav{display:grid;padding:16px}.drawer-nav a{text-decoration:none;padding:12px 14px;border-radius:8px;color:var(--text)}.drawer-nav a:hover{background:var(--blue-soft);color:var(--blue-dark)}.drawer-download{margin-top:8px;text-align:center;background:var(--blue)!important;color:#fff!important}.container{width:min(1160px,calc(100% - 40px));margin:0 auto}.section{padding:84px 0}.section-light{background:var(--light)}.section-soft{background:linear-gradient(180deg,#fff 0%,#f7fbff 100%)}.section-head{max-width:760px;margin:0 auto 36px;text-align:center}.eyebrow{display:inline-block;color:var(--blue-dark);background:var(--blue-soft);padding:5px 12px;border-radius:999px;font-size:14px;font-weight:700;margin-bottom:12px}.section-title,h1,h2,h3{color:var(--title);line-height:1.3}.section-title{font-size:clamp(28px,4vw,42px);margin:0 0 14px}.section-desc{color:var(--muted);margin:0}.hero{position:relative;overflow:hidden;padding:82px 0 70px;background:radial-gradient(circle at 85% 10%,#eaf4ff 0,transparent 34%),linear-gradient(180deg,#fff,#fafdff)}.hero:before{content:"";position:absolute;width:320px;height:320px;border:1px solid #dfeeff;border-radius:50%;left:-180px;top:80px}.hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:54px;align-items:center}.hero h1{font-size:clamp(38px,6vw,66px);margin:0 0 18px;letter-spacing:-1px}.hero-subtitle{font-size:clamp(20px,2.5vw,28px);color:var(--blue-dark);font-weight:700;margin:0 0 16px}.hero-copy{font-size:17px;color:var(--muted);max-width:680px}.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin:28px 0 20px}.hero-links{display:flex;gap:18px;flex-wrap:wrap}.hero-links a{color:#2f83d8;text-decoration:none}.hero-links a:hover{text-decoration:underline}.hero-points{display:grid;grid-template-columns:repeat(2,1fr);gap:10px 18px;margin-top:28px;padding:0;list-style:none}.hero-points li{position:relative;padding-left:24px}.hero-points li:before{content:"✓";position:absolute;left:0;color:var(--blue);font-weight:900}.hero-visual{display:flex;justify-content:center}.hero-visual img{max-height:600px;object-fit:contain;filter:drop-shadow(0 28px 44px rgba(43,97,153,.16))}.info-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.info-card,.category-card,.review-card,.faq-card,.content-card{background:#fff;border:1px solid var(--line);border-radius:8px;box-shadow:0 8px 24px rgba(43,97,153,.06)}.info-card{padding:26px}.info-card h3{margin:0 0 8px}.info-card p{margin:0;color:var(--muted)}.category-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:30px}.category-card{padding:28px;text-decoration:none;transition:.2s;min-height:186px;display:flex;flex-direction:column}.category-card:hover{border-color:var(--blue);transform:translateY(-4px)}.category-card h3{margin:0 0 10px;color:var(--blue-dark)}.category-card p{margin:0 0 18px;color:var(--muted);flex:1}.category-card span{color:#2f83d8;font-weight:700}.category-card.full{grid-column:1/-1;min-height:auto}.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}.split.reverse .feature-image{order:2}.feature-image{background:#fff;border:1px solid #e4edf6;border-radius:16px;padding:28px;box-shadow:var(--shadow)}.feature-image img{width:100%;height:auto;object-fit:contain;display:block;max-height:430px}.content-copy h2{font-size:clamp(28px,4vw,40px);margin:0 0 18px}.content-copy h3{margin:22px 0 8px}.content-copy p{color:var(--muted)}.content-copy ul{padding-left:20px}.content-copy li{margin:8px 0}.dual-grid{display:grid;grid-template-columns:1fr 1fr;gap:26px}.content-card{padding:30px}.content-card img{max-height:250px;margin:0 auto 22px;display:block;object-fit:contain}.content-card h3{font-size:26px;margin:0 0 12px}.reviews{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.review-card{padding:26px}.review-card p{margin:0;color:var(--muted)}.review-card strong{display:block;color:var(--blue-dark);margin-top:18px}.faq-list{display:grid;gap:14px}.faq-item{background:#fff;border:1px solid var(--line);border-radius:8px;padding:22px}.faq-item h3{margin:0 0 10px;font-size:19px}.faq-item p{margin:0;color:var(--muted)}.notice{background:#fff7e9;border:1px solid #f0d5a1;border-radius:10px;padding:22px;color:#76591f}.page-hero{padding:68px 0;background:linear-gradient(180deg,#f5faff,#fff);border-bottom:1px solid #e8f0f7}.page-hero .container{max-width:920px;text-align:center}.page-hero h1{font-size:clamp(34px,5vw,52px);margin:0 0 14px}.page-hero p{font-size:18px;color:var(--muted);margin:0}.article{width:min(920px,calc(100% - 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@media(max-width:1050px){.nav-core{display:none}.info-grid{grid-template-columns:repeat(2,1fr)}.reviews{grid-template-columns:repeat(2,1fr)}}
@media(max-width:800px){.header-inner{min-height:62px;padding:0 14px;gap:8px}.site-logo img{max-height:36px}.header-actions{gap:7px}.header-download{min-height:44px;padding:0 14px;font-size:14px}.hero{padding:52px 0}.hero-grid,.split,.dual-grid,.footer-inner{grid-template-columns:1fr}.hero-grid{gap:24px}.hero-copy{font-size:16px}.hero-visual img{max-height:430px}.split.reverse .feature-image{order:0}.category-grid{grid-template-columns:1fr}.category-card.full{grid-column:auto}.section{padding:62px 0}.reviews{grid-template-columns:1fr}.announcement-grid{grid-template-columns:1fr}.footer-links{grid-template-columns:repeat(2,1fr)}.feature-image{padding:18px}.article{padding-top:44px}.page-hero{padding:50px 0}}
@media(max-width:520px){.container,.article,.footer-inner,.footer-risk,.footer-copy{width:min(100% - 32px,1160px)}.header-download{padding:0 11px}.info-grid,.hero-points,.footer-links{grid-template-columns:1fr}.hero-actions{display:grid}.hero-actions a{width:100%}.hero-links{display:grid;gap:8px}.section-title{font-size:30px}.content-card,.info-card,.category-card,.review-card{padding:22px}.maintenance-card{padding:30px 22px}.drawer{width:92vw}}