:root{--bg:#fff;--light:#f4f7fb;--soft:#eef3f9;--blue:#3f8fe5;--deep:#2875c7;--pale:#eaf4ff;--title:#1f2d3d;--text:#34495e;--muted:#6f7f90;--line:#d8e4f0;--divider:#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:1.75;overflow-x:hidden}body.menu-open{overflow:hidden}a{color:#2f83d8}img{max-width:100%;height: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 var(--divider);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 a{color:var(--text);text-decoration:none;padding:8px 10px;border-radius:8px}.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;transition:.2s ease;position:relative;z-index:2;pointer-events:auto;touch-action:manipulation}.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,.menu-btn:focus-visible,.drawer-close:focus-visible,a:focus-visible{outline:3px solid rgba(63,143,229,.35);outline-offset:3px}.secondary-btn{color:var(--deep);background:var(--pale);border:1px solid #cfe3f8}.secondary-btn:hover{border-color:var(--blue);transform:translateY(-1px)}.menu-btn{width:46px;height:46px;border:1px solid var(--line);border-radius:9px;background:#fff;display:flex;flex-direction:column;justify-content:center;align-items:center;gap:5px;cursor:pointer}.menu-btn span{width:20px;height:2px;background:var(--title);display:block}.drawer-overlay{position:fixed;inset:0;background:rgba(22,42,63,.34);z-index:10000;opacity:0;transition:opacity .2s}.drawer-overlay.show{opacity:1}.drawer{position:fixed;right:0;top:0;width:min(390px,90vw);height:100vh;background:#fff;z-index:10001;padding:20px;transform:translateX(105%);transition:transform .24s ease;box-shadow:-16px 0 42px rgba(31,45,61,.14);overflow-y:auto}.drawer.open{transform:translateX(0)}.drawer-top{display:flex;align-items:center;justify-content:space-between;padding-bottom:14px;border-bottom:1px solid var(--divider)}.drawer-close{width:44px;height:44px;border:0;background:var(--light);border-radius:10px;font-size:30px;line-height:1;cursor:pointer;color:var(--title)}.drawer-nav{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin:18px 0}.drawer-nav a{padding:11px 12px;border-radius:8px;text-decoration:none;color:var(--text);background:#f8fafc;border:1px solid #edf2f7}.drawer-nav a:hover{background:var(--pale);color:var(--deep)}.drawer-download{width:100%}.container{max-width:1160px;margin:0 auto;padding:0 20px}.section{padding:76px 0}.section-light{background:var(--light)}.section-soft{background:var(--soft)}.section-title{margin:0 0 12px;color:var(--title);font-size:clamp(28px,3vw,40px);line-height:1.25}.section-lead{margin:0 auto 34px;max-width:780px;color:var(--muted);font-size:17px}.center{text-align:center}.hero{position:relative;overflow:hidden;background:linear-gradient(180deg,#fff 0%,#f9fbfe 100%)}.hero:before,.hero:after{content:"";position:absolute;border-radius:50%;background:var(--pale);z-index:0}.hero:before{width:320px;height:320px;left:-180px;top:80px}.hero:after{width:260px;height:260px;right:-130px;bottom:20px}.hero-inner{position:relative;z-index:1;max-width:1160px;margin:0 auto;padding:78px 20px 70px;display:grid;grid-template-columns:1.04fr .96fr;gap:56px;align-items:center}.eyebrow{display:inline-flex;padding:6px 11px;border-radius:999px;background:var(--pale);color:var(--deep);font-weight:700;font-size:14px}.hero h1{margin:16px 0 12px;font-size:clamp(40px,5vw,64px);line-height:1.12;color:var(--title);letter-spacing:-1px}.hero-sub{margin:0 0 16px;font-size:clamp(20px,2.4vw,28px);color:var(--deep);font-weight:700;line-height:1.45}.hero-copy{font-size:17px;color:var(--muted);max-width:670px}.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin:26px 0 18px}.hero-links{display:flex;gap:18px;flex-wrap:wrap}.hero-links a{text-decoration:none}.hero-points{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin-top:24px}.hero-point{padding:10px 13px;border:1px solid var(--line);border-radius:8px;background:rgba(255,255,255,.82);font-size:14px}.hero-visual img{width:100%;max-height:560px;object-fit:contain;display:block}.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:24px}.info-card h3,.category-card h3,.content-card h3{margin:0 0 10px;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:26px;transition:.2s ease;border-color:#cfe0f2}.category-card:hover{transform:translateY(-3px);border-color:var(--blue)}.category-card.full{grid-column:1/-1}.category-card a{display:inline-block;margin-top:14px;text-decoration:none;font-weight:700}.split{display:grid;grid-template-columns:1fr 1fr;gap:54px;align-items:center}.split.reverse .feature-image{order:2}.feature-image img,.content-img{width:100%;max-height:460px;object-fit:contain;display:block}.copy p{margin:0 0 16px}.copy ul{padding-left:20px}.button-row{display:flex;gap:12px;flex-wrap:wrap;margin-top:24px}.dual-grid{display:grid;grid-template-columns:1fr 1fr;gap:30px}.content-card{padding:28px}.review-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.review-card{padding:24px}.review-card p{margin:0 0 12px}.review-card span{font-size:14px;color:var(--muted)}.faq-list{display:grid;gap:14px}.faq-card{padding:0;overflow:hidden}.faq-card details{padding:18px 22px}.faq-card summary{cursor:pointer;font-weight:700;color:var(--title)}.faq-card p{margin:12px 0 0;color:var(--muted)}.risk-box{padding:28px;border:1px solid #bcd6ef;background:#f5faff;border-radius:10px}.risk-box h3{margin-top:0;color:var(--deep)}.page-hero{padding:62px 0 42px;background:linear-gradient(180deg,#f7fbff,#fff);border-bottom:1px solid var(--divider)}.page-hero h1{margin:0 0 12px;font-size:clamp(36px,5vw,54px);line-height:1.2;color:var(--title)}.page-hero p{max-width:800px;margin:0;color:var(--muted);font-size:18px}.article{max-width:900px;margin:0 auto}.article h2{margin:42px 0 12px;color:var(--title);font-size:30px}.article h3{margin:28px 0 8px;color:var(--deep);font-size:22px}.article p{margin:0 0 16px}.article ul,.article ol{padding-left:24px}.article li{margin:7px 0}.notice{padding:18px 20px;border-left:4px solid var(--blue);background:var(--pale);border-radius:0 8px 8px 0;margin:24px 0}.table-wrap{overflow-x:auto}.simple-table{width:100%;border-collapse:collapse;min-width:640px}.simple-table th,.simple-table td{padding:14px;border:1px solid var(--line);text-align:left;vertical-align:top}.simple-table th{background:var(--light);color:var(--title)}.site-footer{background:#438ddf;color:#fff}.footer-inner{max-width:1160px;margin:0 auto;padding:52px 20px 24px}.footer-brand{display:grid;grid-template-columns:200px 1fr;gap:28px;align-items:start}.footer-brand .site-logo img{max-height:46px}.footer-brand p{margin:0;max-width:760px}.footer-links{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;margin:38px 0}.footer-links h3{margin:0 0 12px;color:#fff}.footer-links a{display:block;color:#fff;text-decoration:none;opacity:.92;margin:7px 0}.footer-links a:hover{text-decoration:underline}.footer-risk{padding:18px 0;border-top:1px solid rgba(255,255,255,.25);border-bottom:1px solid rgba(255,255,255,.25)}.footer-copy{padding-top:18px;font-size:14px;opacity:.9}
@media(max-width:980px){.nav-core{display:none}.hero-inner,.split{grid-template-columns:1fr;gap:34px}.split.reverse .feature-image{order:0}.hero-visual{max-width:620px;margin:0 auto}.info-grid{grid-template-columns:repeat(2,1fr)}.category-grid{grid-template-columns:repeat(2,1fr)}.category-card.full{grid-column:1/-1}.review-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:768px){.header-inner{min-height:62px;padding:0 14px;gap:10px}.site-logo img{max-height:36px}.header-actions{gap:7px}.header-download{min-height:44px;padding:0 14px;font-size:14px}.menu-btn{width:44px;height:44px}.hero-inner{padding:52px 16px}.hero h1{font-size:40px}.hero-sub{font-size:21px}.hero-actions .main-btn,.hero-actions .secondary-btn{flex:1 1 180px}.hero-points{grid-template-columns:1fr}.section{padding:58px 0}.container{padding:0 16px}.info-grid,.category-grid,.dual-grid,.review-grid{grid-template-columns:1fr}.category-card.full{grid-column:auto}.drawer-nav{grid-template-columns:1fr}.footer-brand{grid-template-columns:1fr}.footer-links{grid-template-columns:1fr 1fr}.page-hero{padding:46px 0 30px}.article h2{font-size:27px}}
@media(max-width:520px){.footer-links{grid-template-columns:1fr}.hero h1{font-size:35px}.hero-links{gap:10px 14px}.main-btn,.secondary-btn{padding:0 17px}.header-download{padding:0 12px}.section-title{font-size:30px}}