:root{--blue:#3f8fe5;--blue-dark:#2875c7;--blue-soft:#eaf4ff;--text:#34495e;--title:#1f2d3d;--muted:#6f7f90;--line:#d8e4f0;--light:#f4f7fb;--aux:#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.menu-open{overflow:hidden}a{color:#2f83d8}img{max-width:100%;height:auto}.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;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 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)}.secondary-btn{color:var(--blue-dark);border:1px solid #b8d5ef;background:#fff}.secondary-btn:hover{border-color:var(--blue);background:var(--blue-soft)}.main-btn:focus-visible,.secondary-btn:focus-visible,.menu-toggle:focus-visible,.drawer-close:focus-visible,a:focus-visible{outline:3px solid rgba(63,143,229,.35);outline-offset:3px}.menu-toggle{width:46px;height:44px;border:1px solid var(--line);background:#fff;border-radius:8px;display:grid;place-content:center;gap:4px;cursor:pointer}.menu-toggle span{width:20px;height:2px;background:#2b4c6b;display:block}.drawer-mask{position:fixed;inset:0;background:rgba(25,46,67,.35);z-index:10000;opacity:0;transition:opacity .18s}.drawer-mask.show{opacity:1}.drawer{position:fixed;right:0;top:0;width:min(380px,88vw);height:100vh;background:#fff;z-index:10001;box-shadow:-18px 0 45px rgba(29,65,98,.16);transform:translateX(102%);transition:transform .22s ease;overflow-y:auto}.drawer.open{transform:translateX(0)}.drawer-head{height:72px;padding:0 18px;border-bottom:1px solid #e5edf5;display:flex;align-items:center;justify-content:space-between}.drawer-close{width:44px;height:44px;border:0;background:var(--light);border-radius:8px;font-size:30px;line-height:1;cursor:pointer;color:#41607b}.drawer-nav{padding:14px 18px 28px;display:grid}.drawer-nav a{text-decoration:none;color:var(--text);padding:12px 10px;border-bottom:1px solid #edf2f7}.drawer-nav a:hover{color:var(--blue-dark);background:var(--blue-soft)}
h1,h2,h3,.section-title{color:var(--title);line-height:1.3}.eyebrow{display:inline-flex;padding:5px 10px;border-radius:999px;background:var(--blue-soft);color:var(--blue-dark);font-size:13px;font-weight:700}.hero{padding:72px 0 62px;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:#eaf4ff;right:-160px;top:-190px;z-index:0}.hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:58px;align-items:center;position:relative;z-index:1}.hero h1{font-size:clamp(38px,5vw,60px);margin:16px 0 12px;letter-spacing:-1px}.hero-subtitle{font-size:clamp(20px,2.4vw,28px);color:#31597b;margin:0 0 18px;font-weight:700}.hero-copy{font-size:17px;color:#557083;max-width:720px}.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin:28px 0 20px}.hero-links{display:flex;flex-wrap:wrap;gap:18px;font-size:14px}.hero-links a{text-decoration:none}.hero-points{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px 22px;margin-top:24px;color:#45637b;font-size:14px}.hero-point:before{content:"✓";color:var(--blue);font-weight:700;margin-right:7px}.hero-visual{padding:24px}.hero-visual img{width:min(100%,520px);margin:0 auto;display:block;object-fit:contain;filter:drop-shadow(0 24px 38px rgba(38,86,128,.16))}
.section{padding:76px 0}.section-light{background:var(--light)}.section-head{max-width:760px;margin:0 auto 36px;text-align:center}.section-head.left{text-align:left;margin-left:0}.section-head h2{font-size:clamp(28px,3.5vw,40px);margin:10px 0}.section-head p{color:var(--muted);margin:0}.info-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}.info-card,.category-card,.review-card,.faq-card,.content-card{background:#fff;border:1px solid var(--line);border-radius:10px;box-shadow:0 8px 24px rgba(43,97,153,.06)}.info-card{padding:24px}.info-card h3{margin:0 0 10px;font-size:19px}.info-card p{margin:0;color:var(--muted);font-size:14px}.category-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:30px}.category-card{padding:26px;min-height:176px;display:flex;flex-direction:column;transition:.2s ease;border-color:#cfe0f1}.category-card:hover{transform:translateY(-4px);border-color:var(--blue)}.category-card h3{margin:0 0 8px;color:#265f97}.category-card p{margin:0 0 18px;color:var(--muted);flex:1}.category-card a{text-decoration:none;font-weight:700}.category-card.wide{grid-column:1/-1;min-height:150px}.split{display:grid;grid-template-columns:1fr 1fr;gap:54px;align-items:center}.split.reverse .feature-image{order:2}.feature-image{padding:18px}.feature-image img{width:100%;max-height:430px;object-fit:contain;display:block}.prose h2{font-size:clamp(28px,3vw,38px);margin:0 0 18px}.prose h3{margin-top:28px}.prose p{color:#4f687d}.prose ul{padding-left:20px}.prose li{margin:7px 0}.text-link{font-weight:700;text-decoration:none}.notice{background:#f8fbff;border-left:4px solid var(--blue);padding:16px 18px;border-radius:0 8px 8px 0;color:#4c6780}.risk-box{background:#fff8ed;border:1px solid #f3d8a8;padding:20px;border-radius:10px;color:#71562d}.two-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:26px}.three-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}.review-card,.faq-card,.content-card{padding:24px}.review-card p,.faq-card p{margin-bottom:0;color:var(--muted)}.faq-card h3{margin-top:0}.faq-list{display:grid;gap:18px}.faq-item{padding:24px;border:1px solid var(--line);border-radius:10px;background:#fff}.faq-item h2,.faq-item h3{margin-top:0}.page-hero{padding:62px 0;background:linear-gradient(180deg,#f8fbff,#fff);border-bottom:1px solid #edf2f7}.page-hero .container{max-width:900px}.page-hero h1{font-size:clamp(34px,4vw,50px);margin:10px 0}.page-hero p{font-size:17px;color:var(--muted)}.article{padding:62px 0}.article .container{max-width:920px}.article h2{font-size:28px;margin-top:44px}.article h3{font-size:21px;margin-top:30px}.article p{margin:14px 0}.article .lead{font-size:18px;color:#506a80}.article-nav{display:flex;flex-wrap:wrap;gap:10px;margin:28px 0}.article-nav a{background:var(--blue-soft);color:var(--blue-dark);padding:8px 12px;border-radius:8px;text-decoration:none}.news-list{display:grid;gap:20px}.news-item{padding:26px;border:1px solid var(--line);background:#fff;border-radius:10px}.news-item .tag{font-size:12px;color:var(--blue-dark);font-weight:700}.news-item h2{font-size:22px;margin:8px 0}.news-item p{margin:0;color:var(--muted)}
.site-footer{background:#438ddf;color:#fff;padding:58px 0 20px}.footer-grid{display:grid;grid-template-columns:1.6fr repeat(3,1fr);gap:34px}.footer-logo{background:#fff;padding:8px 12px;border-radius:8px;width:max-content}.footer-brand p{max-width:450px;color:#eef7ff}.site-footer h3{color:#fff;margin-top:0}.site-footer a{display:block;color:#fff;text-decoration:none;margin:8px 0;opacity:.95}.site-footer a:hover{text-decoration:underline}.footer-risk{margin-top:34px;padding-top:24px;border-top:1px solid rgba(255,255,255,.28);color:#eef7ff;font-size:14px}.footer-bottom{margin-top:18px;color:#e4f1ff;font-size:13px}
@media(max-width:980px){.nav-core{display:none}.info-grid{grid-template-columns:repeat(2,1fr)}.category-grid{grid-template-columns:repeat(2,1fr)}.category-card.wide{grid-column:1/-1}.hero-grid,.split{grid-template-columns:1fr;gap:28px}.split.reverse .feature-image{order:0}.hero-visual{max-width:620px;margin:0 auto}.footer-grid{grid-template-columns:1.5fr 1fr 1fr}.footer-grid>div:last-child{grid-column:2/4}.three-grid{grid-template-columns:1fr 1fr}}
@media(max-width:768px){.header-inner{min-height:62px;padding:0 14px;gap:8px}.site-logo img{max-height:38px}.header-actions{gap:7px}.header-download{min-height:44px;padding:0 14px;font-size:14px}.menu-toggle{width:44px;height:44px}.container{width:min(100% - 32px,1160px)}.hero{padding:46px 0 42px}.hero-grid{gap:20px}.hero h1{font-size:38px}.hero-copy{font-size:15.5px}.hero-actions{display:grid;grid-template-columns:1fr}.hero-actions .main-btn,.hero-actions .secondary-btn{width:100%}.hero-points{grid-template-columns:1fr}.hero-visual{padding:10px}.section{padding:56px 0}.info-grid,.category-grid,.two-grid,.three-grid{grid-template-columns:1fr}.category-card.wide{grid-column:auto}.category-card{min-height:auto}.split{gap:24px}.feature-image{padding:4px}.page-hero{padding:44px 0}.article{padding:44px 0}.article h2{font-size:25px;margin-top:36px}.footer-grid{grid-template-columns:1fr 1fr}.footer-grid>div:first-child{grid-column:1/-1}.footer-grid>div:last-child{grid-column:auto}.site-footer{padding-top:44px}}
@media(max-width:460px){.site-logo img{max-width:116px;max-height:34px}.header-download{padding:0 11px;font-size:13px}.header-actions{gap:5px}.container{width:calc(100% - 32px)}.hero h1{font-size:33px}.footer-grid{grid-template-columns:1fr}.footer-grid>div,.footer-grid>div:last-child{grid-column:auto}.drawer{width:90vw}}