:root{--blue:#3f8fe5;--deep:#2875c7;--link:#2f83d8;--light:#f4f7fb;--soft:#eef3f9;--pale:#eaf4ff;--title:#1f2d3d;--text:#34495e;--muted:#6f7f90;--hint:#8c99a8;--border:#d8e4f0;--line:#e5edf5;--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:1.7;overflow-x:hidden}body.drawer-open{overflow:hidden}img{max-width:100%;height:auto}a{color:var(--link)}button,a{touch-action:manipulation}.skip-link{position:fixed;left:12px;top:-60px;background:#fff;padding:10px 14px;z-index:20000;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 var(--line);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;margin-left:auto}.nav-core a{color:var(--text);text-decoration:none;padding:8px 9px;border-radius:8px;white-space:nowrap;font-size:15px}.nav-core a:hover,.nav-core a.active{color:var(--deep);background:var(--pale)}.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}.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-visible,.secondary-btn:focus-visible,.text-link:focus-visible,.menu-toggle:focus-visible,.drawer-close:focus-visible,a:focus-visible{outline:3px solid rgba(63,143,229,.32);outline-offset:3px}.main-btn:active{transform:translateY(0)}.secondary-btn{color:var(--deep);background:#fff;border:1px solid var(--border)}.secondary-btn:hover{border-color:var(--blue);background:var(--pale)}.menu-toggle{width:44px;height:44px;border:1px solid var(--border);background:#fff;border-radius:8px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;cursor:pointer}.menu-toggle span{width:19px;height:2px;background:var(--title);border-radius:2px}.drawer-mask{position:fixed;inset:0;background:rgba(31,45,61,.36);z-index:10000;opacity:0;transition:opacity .2s}.drawer-mask.show{opacity:1}.site-drawer{position:fixed;top:0;right:0;width:min(390px,88vw);height:100vh;background:#fff;z-index:10001;transform:translateX(104%);transition:transform .22s ease;box-shadow:-12px 0 32px rgba(31,45,61,.14);overflow-y:auto}.site-drawer.open{transform:translateX(0)}.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:16px 18px;border-bottom:1px solid var(--line)}.drawer-close{width:44px;height:44px;border:0;background:var(--soft);border-radius:8px;font-size:30px;line-height:1;cursor:pointer;color:var(--title)}.drawer-nav{padding:14px 18px 30px;display:grid;gap:5px}.drawer-nav a{padding:11px 12px;border-radius:8px;text-decoration:none;color:var(--text)}.drawer-nav a:hover{background:var(--pale);color:var(--deep)}.drawer-nav .drawer-download{margin-top:8px;background:var(--blue);color:#fff;text-align:center;font-weight:700}
main{display:block}.container{width:min(1160px,calc(100% - 40px));margin:0 auto}.section{padding:76px 0}.section-light{background:var(--light)}.section-soft{background:var(--soft)}.section-title{margin:0 0 14px;color:var(--title);font-size:clamp(28px,4vw,42px);line-height:1.25}.section-lead{max-width:800px;margin:0 0 34px;color:var(--muted);font-size:17px}.eyebrow{display:inline-block;margin-bottom:12px;color:var(--deep);font-size:13px;letter-spacing:.08em;font-weight:700;text-transform:uppercase}.hero{padding:72px 0 64px;background:linear-gradient(180deg,#fff 0%,#f7fbff 100%);position:relative;overflow:hidden}.hero:before{content:"";position:absolute;width:420px;height:420px;border-radius:50%;right:-120px;top:-180px;background:#eaf4ff}.hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:1.08fr .92fr;align-items:center;gap:56px}.hero h1{margin:0 0 16px;color:var(--title);font-size:clamp(38px,5.7vw,66px);line-height:1.12;letter-spacing:-.03em}.hero-subtitle{font-size:clamp(21px,2.8vw,30px);color:var(--deep);font-weight:700;margin:0 0 18px}.hero-copy{font-size:17px;color:var(--muted);max-width:700px;margin:0 0 24px}.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:22px}.hero-links{display:flex;gap:18px;flex-wrap:wrap}.text-link{text-decoration:none;color:var(--link);font-weight:700}.text-link:hover{text-decoration:underline}.hero-points{display:flex;flex-wrap:wrap;gap:10px;margin:24px 0 0;padding:0;list-style:none}.hero-points li{padding:8px 12px;border:1px solid var(--border);background:#fff;border-radius:999px;color:var(--muted);font-size:14px}.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 28px rgba(43,97,153,.13))}.quick-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(--border);border-radius:8px;box-shadow:0 8px 24px rgba(43,97,153,.06)}.info-card{padding:24px}.info-card h3,.category-card h3,.content-card h3{margin:0 0 8px;color:var(--title)}.info-card p,.category-card p,.content-card p{margin:0;color:var(--muted)}.category-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:30px}.category-card{padding:28px;min-height:190px;display:flex;flex-direction:column;transition:transform .18s,border-color .18s}.category-card:hover{transform:translateY(-3px);border-color:var(--blue)}.category-card h3{color:var(--deep);font-size:21px}.category-card .text-link{margin-top:auto;padding-top:16px}.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{display:flex;align-items:center;justify-content:center;min-height:280px}.feature-image img,.content-img{max-width:100%;height:auto;object-fit:contain;display:block}.copy h2{margin:0 0 16px;color:var(--title);font-size:clamp(28px,4vw,40px);line-height:1.25}.copy p{margin:0 0 16px;color:var(--muted)}.copy ul,.article ul,.article ol{padding-left:21px}.copy li,.article li{margin:6px 0}.pair-grid{display:grid;grid-template-columns:1fr 1fr;gap:30px}.content-card{padding:30px}.content-card .feature-image{min-height:220px;margin-bottom:24px}.note{padding:18px 20px;background:var(--pale);border-left:4px solid var(--blue);border-radius:6px;color:var(--text)}.risk-box{padding:24px;background:#fff;border:1px solid var(--border);border-radius:8px}.review-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.review-card{padding:24px}.review-card p{margin:0;color:var(--muted)}.review-card strong{display:block;margin-top:14px;color:var(--deep);font-size:14px}.faq-list{display:grid;grid-template-columns:1fr 1fr;gap:18px}.faq-card{padding:22px}.faq-card h3{margin:0 0 8px;font-size:18px;color:var(--title)}.faq-card p{margin:0;color:var(--muted)}.cta-band{background:var(--deep);color:#fff;padding:42px 0}.cta-band .container{display:flex;align-items:center;justify-content:space-between;gap:24px}.cta-band h2{margin:0 0 8px;color:#fff}.cta-band p{margin:0;color:rgba(255,255,255,.82)}.cta-band .main-btn{background:#fff;color:var(--deep);box-shadow:none}
.mt-30{margin-top:30px}.page-hero{padding:66px 0 50px;background:var(--light);border-bottom:1px solid var(--line)}.breadcrumbs{font-size:14px;color:var(--hint);margin-bottom:12px}.breadcrumbs a{text-decoration:none}.page-hero h1{margin:0 0 12px;color:var(--title);font-size:clamp(34px,5vw,52px);line-height:1.2}.page-hero p{max-width:820px;margin:0;color:var(--muted);font-size:18px}.article-wrap{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:48px;align-items:start}.article{min-width:0}.article h2{color:var(--title);font-size:30px;margin:44px 0 14px}.article h2:first-child{margin-top:0}.article h3{color:var(--deep);font-size:21px;margin:28px 0 10px}.article p{margin:0 0 16px}.article .lead{font-size:19px;color:var(--muted)}.side-nav{position:sticky;top:94px;border:1px solid var(--border);background:#fff;border-radius:8px;padding:18px}.side-nav strong{display:block;color:var(--title);margin-bottom:10px}.side-nav a{display:block;padding:7px 4px;text-decoration:none;color:var(--muted)}.side-nav a:hover{color:var(--deep)}.steps{counter-reset:step;display:grid;gap:14px}.step{position:relative;padding:20px 22px 20px 58px;border:1px solid var(--border);border-radius:8px;background:#fff}.step:before{counter-increment:step;content:counter(step);position:absolute;left:18px;top:19px;width:28px;height:28px;border-radius:50%;display:flex;align-items:center;justify-content:center;background:var(--pale);color:var(--deep);font-weight:700}.faq-full{display:grid;gap:16px}.faq-full details{border:1px solid var(--border);border-radius:8px;background:#fff;padding:0 20px}.faq-full summary{cursor:pointer;padding:18px 0;font-weight:700;color:var(--title)}.faq-full details p{padding:0 0 18px;margin:0;color:var(--muted)}.news-list{display:grid;gap:18px}.news-item{padding:24px;border:1px solid var(--border);border-radius:8px;background:#fff}.news-meta{color:var(--deep);font-size:13px;font-weight:700;margin-bottom:6px}.news-item h2{font-size:22px;margin:0 0 10px}.news-item p{margin:0;color:var(--muted)}.tag-row{display:flex;gap:10px;flex-wrap:wrap;margin:0 0 26px}.tag{padding:7px 12px;border-radius:999px;background:var(--pale);color:var(--deep);font-size:14px}.site-footer{background:#438ddf;color:#fff}.footer-inner{width:min(1160px,calc(100% - 40px));margin:0 auto;padding:52px 0 34px;display:grid;grid-template-columns:2fr repeat(3,1fr);gap:36px}.footer-logo img{filter:brightness(0) invert(1);max-height:42px}.footer-brand p{color:rgba(255,255,255,.82);max-width:420px}.footer-links h2{font-size:16px;margin:0 0 12px;color:#fff}.footer-links a{display:block;color:rgba(255,255,255,.88);text-decoration:none;padding:4px 0}.footer-links a:hover{color:#fff;text-decoration:underline}.footer-risk{width:min(1160px,calc(100% - 40px));margin:0 auto;padding:20px 0;border-top:1px solid rgba(255,255,255,.22);border-bottom:1px solid rgba(255,255,255,.22);color:rgba(255,255,255,.86)}.footer-bottom{width:min(1160px,calc(100% - 40px));margin:0 auto;padding:18px 0 26px;color:rgba(255,255,255,.72);font-size:14px}
@media (max-width:1080px){.nav-core{display:none}.quick-grid{grid-template-columns:repeat(2,1fr)}.article-wrap{grid-template-columns:1fr}.side-nav{position:static;display:none}.footer-inner{grid-template-columns:2fr 1fr 1fr}.footer-links:last-child{grid-column:2/-1}.review-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:820px){.header-inner{min-height:64px;padding:0 16px}.site-logo img{max-height:36px}.header-download{min-height:44px;padding:0 14px;font-size:14px}.hero{padding:48px 0}.hero-grid,.split,.pair-grid{grid-template-columns:1fr;gap:32px}.split.reverse .feature-image{order:0}.hero-visual{margin-top:12px}.category-grid{grid-template-columns:repeat(2,1fr);gap:20px}.category-card.full{grid-column:1/-1}.section{padding:58px 0}.faq-list{grid-template-columns:1fr}.cta-band .container{align-items:flex-start;flex-direction:column}.footer-inner{grid-template-columns:1fr 1fr}.footer-brand{grid-column:1/-1}.footer-links:last-child{grid-column:auto}.feature-image{min-height:0}}
@media (max-width:560px){.container,.footer-inner,.footer-risk,.footer-bottom{width:min(100% - 32px,1160px)}.header-inner{gap:8px}.site-logo img{max-width:112px;max-height:32px}.header-actions{gap:6px}.header-download{padding:0 11px;font-size:13px}.hero h1{font-size:38px}.hero-subtitle{font-size:22px}.hero-actions{display:grid}.hero-actions .main-btn,.hero-actions .secondary-btn{width:100%}.hero-links{gap:12px 16px}.quick-grid,.category-grid,.review-grid,.footer-inner{grid-template-columns:1fr}.category-card.full,.footer-brand,.footer-links:last-child{grid-column:auto}.section{padding:48px 0}.section-title{font-size:30px}.page-hero{padding:46px 0 38px}.page-hero h1{font-size:36px}.article h2{font-size:27px}.content-card{padding:22px}.menu-toggle{width:44px;height:44px}.footer-inner{gap:24px}.hero-points{display:grid;grid-template-columns:1fr 1fr;width:100%}.hero-points li{text-align:center}.site-drawer{width:min(360px,92vw)}}