:root{--blue:#3f8fe5;--blue-dark:#2875c7;--blue-soft:#eaf4ff;--text:#34495e;--title:#1f2d3d;--muted:#6f7f90;--line:#d8e4f0;--light:#f4f7fb;--assist:#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}.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: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 a{color:var(--text);text-decoration:none;padding:8px 9px;border-radius:8px;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,.secondary-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:.18s ease}.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,.secondary-btn:focus,.menu-btn:focus,.text-link:focus{outline:3px solid rgba(63,143,229,.28);outline-offset:2px}.secondary-btn{color:var(--blue-dark);background:#fff;border:1px solid #bcd6ef}.secondary-btn:hover{background:var(--blue-soft)}.menu-btn{width:44px;height:44px;border:1px solid var(--line);background:#fff;border-radius:8px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;cursor:pointer}.menu-btn span{width:20px;height:2px;background:var(--title);display:block}.drawer-overlay{position:fixed;inset:0;background:rgba(24,43,64,.32);opacity:0;z-index:10000;transition:.22s}.drawer-overlay.show{opacity:1}.drawer{position:fixed;top:0;right:0;width:min(390px,92vw);height:100vh;background:#fff;z-index:10001;transform:translateX(102%);transition:.24s;box-shadow:-18px 0 45px rgba(31,45,61,.15);padding:20px;overflow-y:auto}.drawer.open{transform:translateX(0)}.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;border-bottom:1px solid #e5edf5}.drawer-head img{max-height:42px;width:auto}.drawer-close{width:44px;height:44px;border:0;background:var(--light);border-radius:50%;font-size:30px;line-height:1;cursor:pointer}.drawer-nav{display:grid;grid-template-columns:1fr 1fr;gap:8px;padding:18px 0}.drawer-nav a{color:var(--text);text-decoration:none;padding:11px 10px;border-radius:8px}.drawer-nav a:hover{background:var(--blue-soft);color:var(--blue-dark)}.drawer-download{width:100%}
.hero{padding:76px 0 58px;background:linear-gradient(180deg,#fff 0%,#f8fbff 100%);position:relative;overflow:hidden}.hero:before{content:"";position:absolute;width:420px;height:420px;border-radius:50%;background:#edf6ff;right:-160px;top:-120px}.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;align-items:center;gap:52px;position:relative}.eyebrow{display:inline-flex;padding:5px 10px;background:var(--blue-soft);color:var(--blue-dark);border-radius:999px;font-size:14px;font-weight:700;margin-bottom:14px}.hero h1,.page-hero h1{font-size:clamp(36px,5vw,58px);line-height:1.15;margin:0 0 16px;color:var(--title);letter-spacing:-.8px}.hero-sub{font-size:clamp(20px,2.4vw,28px);color:var(--blue-dark);font-weight:700;margin:0 0 14px}.hero p{font-size:17px;color:var(--muted);margin:0 0 24px}.hero-actions{display:flex;gap:12px;flex-wrap:wrap}.hero-links{display:flex;gap:18px;flex-wrap:wrap;margin-top:18px}.hero-links a,.text-link{text-decoration:none;font-weight:700}.hero-links a:hover,.text-link:hover{text-decoration:underline}.hero-points{display:grid;grid-template-columns:1fr 1fr;gap:10px 22px;margin:26px 0 0;padding:0;list-style:none}.hero-points li{position:relative;padding-left:18px;color:var(--text)}.hero-points li:before{content:"";width:7px;height:7px;border-radius:50%;background:var(--blue);position:absolute;left:0;top:.7em}.hero-visual{display:flex;justify-content:center;position:relative}.hero-visual img{max-width:100%;height:auto;object-fit:contain;display:block;filter:drop-shadow(0 22px 30px rgba(43,97,153,.15))}
.section{padding:72px 0}.section-light{background:var(--light)}.section-head{max-width:760px;margin:0 auto 38px;text-align:center}.section-kicker{color:var(--blue-dark);font-weight:800;font-size:14px;letter-spacing:.6px;margin-bottom:6px}.section-title,h1,h2,h3{color:var(--title)}.section-title{font-size:clamp(28px,3.5vw,40px);line-height:1.25;margin:0 0 12px}.section-desc{color:var(--muted);margin:0}.info-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}.info-card,.category-card,.review-card,.faq-card,.article-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 8px;font-size:20px}.info-card p{margin:0;color:var(--muted)}.category-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:30px}.category-card{padding:28px;transition:.18s}.category-card:hover{border-color:var(--blue);transform:translateY(-3px)}.category-card h3{margin:0 0 8px;font-size:22px;color:var(--blue-dark)}.category-card p{margin:0 0 18px;color:var(--muted)}.category-card.full{grid-column:1/-1;display:grid;grid-template-columns:1fr auto;align-items:center;gap:20px}.split{display:grid;grid-template-columns:1fr 1fr;gap:54px;align-items:center}.split.reverse .feature-image{order:2}.feature-image img,.content-img{max-width:100%;height:auto;object-fit:contain;display:block}.feature-image{background:#fff;border:1px solid var(--line);border-radius:16px;padding:28px;box-shadow:var(--shadow)}.feature-copy h2{font-size:clamp(28px,3vw,38px);margin:0 0 16px}.feature-copy p{margin:0 0 15px;color:var(--muted)}.feature-copy ul{padding-left:20px;margin:18px 0 24px}.feature-copy li{margin:7px 0}.dual-grid{display:grid;grid-template-columns:1fr 1fr;gap:30px}.dual-card{padding:30px;background:#fff;border:1px solid var(--line);border-radius:12px}.dual-card img{width:100%;max-height:220px;object-fit:contain;margin-bottom:20px}.dual-card h3{font-size:25px;margin:0 0 12px}.dual-card p{color:var(--muted)}.notice-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.notice-card{padding:24px;background:#fff;border-left:4px solid var(--blue);box-shadow:0 8px 24px rgba(43,97,153,.06)}.notice-card .tag{font-size:13px;color:var(--blue-dark);font-weight:800}.notice-card h3{margin:8px 0 10px;font-size:20px}.notice-card p{margin:0;color:var(--muted)}.review-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.review-card{padding:24px}.review-card p{margin:0;color:var(--text)}.review-card span{display:block;margin-top:12px;color:var(--muted);font-size:14px}.faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}.faq-card{padding:22px}.faq-card h3{font-size:19px;margin:0 0 8px}.faq-card p{margin:0;color:var(--muted)}.risk-box{background:#fff8e9;border:1px solid #f1d49a;border-radius:10px;padding:24px;color:#675329}.risk-box h3{color:#594313;margin-top:0}.cta-strip{display:flex;align-items:center;justify-content:space-between;gap:24px;background:var(--blue);color:#fff;border-radius:14px;padding:34px 38px}.cta-strip h2{color:#fff;margin:0 0 8px}.cta-strip p{margin:0;color:rgba(255,255,255,.88)}.cta-strip .secondary-btn{white-space:nowrap}
.page-hero{padding:68px 0 42px;background:linear-gradient(180deg,#f7fbff,#fff)}.page-hero .container{max-width:900px}.page-hero h1{font-size:clamp(34px,4vw,50px)}.page-hero p{font-size:18px;color:var(--muted);margin:0}.breadcrumb{font-size:14px;margin-bottom:14px}.breadcrumb a{text-decoration:none}.article-wrap{display:grid;grid-template-columns:minmax(0,1fr) 280px;gap:36px;padding:52px 0 78px}.article-content{min-width:0}.article-content h2{font-size:30px;margin:40px 0 12px}.article-content h2:first-child{margin-top:0}.article-content h3{font-size:22px;margin:28px 0 10px}.article-content p{margin:0 0 18px}.article-content ul,.article-content ol{padding-left:24px}.article-content li{margin:8px 0}.article-content .article-card{padding:26px;margin:24px 0}.article-content .lead{font-size:19px;color:#4f6376}.article-content blockquote{margin:24px 0;padding:18px 22px;border-left:4px solid var(--blue);background:var(--light);color:#53687c}.side-nav{position:sticky;top:94px;align-self:start;background:var(--light);border:1px solid #e2ebf4;border-radius:10px;padding:20px}.side-nav h3{margin:0 0 12px;font-size:18px}.side-nav a{display:block;padding:7px 0;text-decoration:none}.qa-list details{border:1px solid var(--line);border-radius:10px;background:#fff;padding:0 18px;margin:14px 0}.qa-list summary{cursor:pointer;font-weight:800;color:var(--title);padding:18px 0}.qa-list details p{padding:0 0 18px;margin:0;color:var(--muted)}.tag-row{display:flex;gap:8px;flex-wrap:wrap;margin:18px 0}.chip{display:inline-flex;padding:6px 10px;border-radius:999px;background:var(--blue-soft);color:var(--blue-dark);font-size:13px;font-weight:700}
.site-footer{background:#438ddf;color:#fff;padding:54px 0 20px}.footer-grid{display:grid;grid-template-columns:1.7fr repeat(3,1fr);gap:34px}.footer-brand img{max-height:44px;width:auto;filter:brightness(0) invert(1)}.footer-brand p{color:rgba(255,255,255,.86);max-width:420px}.site-footer h3{color:#fff;margin:0 0 12px}.site-footer a{display:block;color:#fff;text-decoration:none;margin:7px 0}.site-footer a:hover{text-decoration:underline}.footer-risk{border-top:1px solid rgba(255,255,255,.2);border-bottom:1px solid rgba(255,255,255,.2);padding-top:18px;padding-bottom:18px;margin-top:30px;color:rgba(255,255,255,.88)}.footer-bottom{padding-top:18px;color:rgba(255,255,255,.8);font-size:14px}
@media(max-width:1020px){.nav-core{display:none}.info-grid{grid-template-columns:1fr 1fr}.category-grid{grid-template-columns:1fr 1fr}.notice-grid,.review-grid{grid-template-columns:1fr 1fr}.article-wrap{grid-template-columns:1fr}.side-nav{position:static;order:-1}.footer-grid{grid-template-columns:1.5fr 1fr 1fr}.footer-grid>div:last-child{grid-column:2/4}}
@media(max-width:768px){.header-inner{min-height:62px;padding:0 14px;gap:8px}.site-logo img{max-height:36px}.header-download{padding:0 14px;min-height:44px;font-size:14px}.menu-btn{flex:0 0 44px}.hero{padding:48px 0}.hero-grid,.split,.dual-grid{grid-template-columns:1fr}.split.reverse .feature-image{order:0}.hero-visual{margin-top:12px}.hero-points{grid-template-columns:1fr}.section{padding:54px 0}.container{width:min(100% - 32px,1160px)}.category-grid,.info-grid,.notice-grid,.review-grid,.faq-grid{grid-template-columns:1fr}.category-card.full{grid-column:auto;display:block}.category-card.full .text-link{display:inline-block;margin-top:12px}.cta-strip{display:block;padding:28px}.cta-strip .secondary-btn{margin-top:18px}.footer-grid{grid-template-columns:1fr 1fr}.footer-grid>div:last-child{grid-column:auto}.footer-brand{grid-column:1/-1}.page-hero{padding:46px 0 30px}.article-wrap{padding:38px 0 58px}.drawer-nav{grid-template-columns:1fr}.hero-actions .main-btn,.hero-actions .secondary-btn{flex:1 1 160px}}
@media(max-width:480px){.header-download{padding:0 11px}.site-logo img{max-width:108px}.hero h1{font-size:38px}.hero-sub{font-size:21px}.footer-grid{grid-template-columns:1fr}.footer-brand{grid-column:auto}.drawer{padding:16px}.category-card,.info-card,.review-card,.faq-card{padding:22px}.article-content h2{font-size:27px}}