:root{--blue:#3f8fe5;--deep:#2875c7;--light:#eaf4ff;--ink:#1f2d3d;--text:#34495e;--muted:#6f7f90;--line:#d8e4f0;--soft:#f4f7fb;--soft2:#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%;height:auto}.skip-link{position:fixed;left:12px;top:-80px;z-index:20000;background:#fff;color:var(--deep);padding:10px 14px;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: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;gap:8px;white-space:nowrap}.nav-core 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span{display:block;width:20px;height:2px;background:var(--ink)}.drawer-mask{position:fixed;inset:0;background:rgba(17,37,61,.42);z-index:10000}.site-drawer{position:fixed;right:0;top:0;width:min(380px,88vw);height:100vh;background:#fff;z-index:10001;padding:18px 20px 24px;transform:translateX(105%);transition:transform .25s ease;overflow-y:auto;box-shadow:-18px 0 40px rgba(31,45,61,.18)}.site-drawer.open{transform:translateX(0)}.drawer-head{display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid #e5edf5;padding-bottom:14px}.drawer-close{width:44px;height:44px;border:0;background:var(--soft);border-radius:8px;font-size:30px;line-height:1;cursor:pointer}.drawer-nav{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin:20px 0}.drawer-nav a{text-decoration:none;color:var(--text);padding:10px;border-radius:7px;background:var(--soft)}.drawer-nav a:hover{background:var(--light);color:var(--deep)}.drawer-download{width:100%}.container{width:min(1160px,calc(100% - 40px));margin:0 auto}.section{padding:88px 0}.section-light{background:var(--soft)}.section-soft{background:var(--soft2)}.section-head{max-width:760px;margin:0 auto 42px;text-align:center}.eyebrow{display:inline-block;color:var(--deep);font-weight:700;background:var(--light);border-radius:999px;padding:5px 12px;margin-bottom:12px}.section-title,h1,h2,h3{color:var(--ink);line-height:1.3}.section-title{font-size:clamp(28px,4vw,42px);margin:0 0 14px}.section-lead{color:var(--muted);margin:0;font-size:17px}.hero{padding:80px 0 66px;position:relative;overflow:hidden;background:linear-gradient(180deg,#fff 0%,#f7fbff 100%)}.hero:before,.hero:after{content:"";position:absolute;border-radius:50%;background:rgba(63,143,229,.08);z-index:0}.hero:before{width:420px;height:420px;right:-170px;top:-190px}.hero:after{width:240px;height:240px;left:-100px;bottom:-120px}.hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:1.12fr .88fr;gap:64px;align-items:center}.hero h1{font-size:clamp(40px,6vw,64px);margin:12px 0 18px;letter-spacing:-1px}.hero-subtitle{font-size:clamp(21px,3vw,30px);color:var(--deep);font-weight:700;margin:0 0 18px}.hero-copy{font-size:17px;color:var(--muted);max-width:710px}.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin:28px 0 22px}.text-btn{display:inline-flex;align-items:center;min-height:44px;padding:0 18px;border:1px solid var(--line);border-radius:8px;background:#fff;color:var(--deep);text-decoration:none;font-weight:700}.text-btn:hover{border-color:var(--blue);background:var(--light)}.hero-links{display:flex;flex-wrap:wrap;gap:16px}.hero-links a{text-decoration:none}.hero-points{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:24px}.hero-point{padding:10px 12px;border-left:3px solid var(--blue);background:rgba(255,255,255,.8);border-radius:0 7px 7px 0;font-size:14px}.hero-visual{display:flex;justify-content:center}.hero-visual img{display:block;width:min(100%,430px);max-height:600px;object-fit:contain;filter:drop-shadow(0 24px 34px rgba(43,97,153,.18))}.info-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}.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:24px}.info-card h3{margin:0 0 10px}.info-card p{margin:0;color:var(--muted)}.category-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:30px}.category-card{padding:26px;display:flex;flex-direction:column;min-height:210px;transition:.2s}.category-card:last-child{grid-column:1/-1;min-height:auto}.category-card:hover{transform:translateY(-4px);border-color:var(--blue)}.category-card h3{color:var(--deep);font-size:22px;margin:0 0 10px}.category-card p{color:var(--muted);margin:0 0 18px}.category-card a{margin-top:auto;text-decoration:none;font-weight:700}.split{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center}.split.reverse .feature-image{order:2}.split.reverse .feature-copy{order:1}.feature-image{display:flex;justify-content:center}.feature-image img,.content-img{max-width:100%;height:auto;object-fit:contain;display:block}.feature-copy h2{font-size:clamp(28px,4vw,42px);margin:0 0 18px}.feature-copy p{color:var(--muted)}.check-list{padding:0;margin:22px 0;list-style:none}.check-list 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p,.article-body li{color:#4d6073}.article-body ul,.article-body ol{padding-left:22px}.article-note{padding:22px 24px;background:var(--light);border-left:4px solid var(--blue);border-radius:0 8px 8px 0;margin:24px 0}.article-warning{padding:22px 24px;background:#fff8e8;border:1px solid #f2d99b;border-radius:8px;margin:24px 0;color:#72541c}.side-nav{position:sticky;top:96px;background:var(--soft);padding:22px;border-radius:8px;border:1px solid var(--line)}.side-nav h2{font-size:18px;margin:0 0 12px}.side-nav a{display:block;text-decoration:none;padding:7px 0;color:var(--text)}.side-nav a:hover{color:var(--deep)}.qa-full{display:grid;gap:18px}.qa-item{background:#fff;border:1px solid var(--line);border-radius:8px;padding:24px}.qa-item h2{font-size:21px;margin:0 0 10px}.qa-item p{margin:0;color:var(--muted)}.announcement-list{display:grid;gap:18px}.announcement{padding:26px;background:#fff;border:1px solid var(--line);border-radius:8px}.announcement .tag{display:inline-block;padding:3px 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@media(max-width:768px){.header-inner{min-height:62px;padding:0 14px;gap:8px}.site-logo img{max-height:36px}.header-actions{gap:7px}.header-download{padding:0 13px;min-height:44px;font-size:14px}.section{padding:64px 0}.container{width:min(100% - 32px,1160px)}.hero{padding:55px 0}.hero-grid,.split{grid-template-columns:1fr;gap:36px}.split.reverse .feature-image,.split.reverse .feature-copy{order:initial}.hero-copy{font-size:16px}.hero-actions{align-items:stretch}.hero-actions .main-btn,.hero-actions .text-btn{flex:1 1 180px}.hero-visual img{width:min(88%,380px)}.info-grid,.category-grid,.two-cards,.notice-grid,.review-grid,.risk-grid,.service-steps{grid-template-columns:1fr}.category-card:last-child{grid-column:auto}.hero-points{grid-template-columns:1fr}.section-head{text-align:left}.article{padding-top:46px}.article-body h2{font-size:26px}.footer-inner{width:min(100% - 32px,1160px);grid-template-columns:1fr;padding-top:46px}.footer-links:last-child{grid-column:auto}.footer-risk{width:min(100% - 32px,1160px)}.drawer-nav{grid-template-columns:1fr}.risk-panel{padding:24px}.inner-hero{padding:52px 0}}
@media(max-width:420px){.header-download{padding:0 10px}.site-logo img{max-width:118px}.hero h1{font-size:38px}.hero-actions{display:grid}.hero-links{display:grid;gap:8px}.menu-toggle{width:44px;flex:0 0 44px}}