*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{--primary:#102A43;--dark:#081E33;--brand:#1D5D91;--gold:#C69A45;--green:#168A68;--bg:#F4F7FA;--card:#FFFFFF;--text:#172B3A;--text2:#607080;--border:#DCE4EC;--warn-bg:#FFF7E6;--warn-text:#8A5A00;--nav-h:72px;--nav-h-m:60px;--radius:12px;--max-w:1200px}
html{scroll-behavior:smooth;margin-top:0!important}
body{font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;font-size:16px;line-height:1.7;color:var(--text);background:var(--bg);-webkit-font-smoothing:antialiased}
a{color:var(--brand);text-decoration:none}
a:hover{color:#154a73}
img{max-width:100%;height:auto}

/* Navigation */
.mj-nav{background:var(--dark);position:fixed;top:0;left:0;right:0;z-index:1000;height:var(--nav-h);border-bottom:1px solid rgba(255,255,255,.06)}
.mj-nav-inner{max-width:var(--max-w);margin:0 auto;padding:0 24px;display:flex;align-items:center;justify-content:space-between;height:100%}
.mj-logo{display:flex;align-items:center;gap:10px}
.mj-logo svg{width:36px;height:36px;flex-shrink:0}
.mj-logo-text{display:flex;flex-direction:column}
.mj-logo-main{color:#fff;font-size:16px;font-weight:700;letter-spacing:.5px;line-height:1.3}
.mj-logo-sub{color:var(--gold);font-size:10px;letter-spacing:1px}
.mj-nav-links{display:flex;align-items:center;gap:2px;list-style:none}
.mj-nav-links a{color:rgba(255,255,255,.7);padding:8px 12px;border-radius:6px;font-size:14px;font-weight:500;transition:all .2s}
.mj-nav-links a:hover,.mj-nav-links a.active{color:#fff;background:rgba(29,93,145,.2)}
.mj-nav-cta{background:var(--gold)!important;color:#fff!important;padding:8px 18px!important;border-radius:6px!important;font-weight:600!important;margin-left:4px}
.mj-nav-cta:hover{background:#b0852e!important;color:#fff!important}
.mj-hamburger{display:none;background:none;border:none;cursor:pointer;padding:8px}
.mj-mobile-menu{display:none;position:fixed;top:var(--nav-h);left:0;right:0;bottom:0;background:var(--dark);z-index:999;padding:20px;overflow-y:auto}
.mj-mobile-menu.active{display:block}
.mj-mobile-menu a{display:block;color:rgba(255,255,255,.75);padding:14px 16px;font-size:16px;border-bottom:1px solid rgba(255,255,255,.06);border-radius:8px}
.mj-mobile-menu a.mj-nav-cta{text-align:center;margin-top:12px}

/* Hero */
.mj-hero{background:linear-gradient(160deg,var(--primary) 0%,var(--dark) 60%,#0a1e35 100%);padding:120px 24px 80px;position:relative;overflow:hidden}
.mj-hero::after{content:"";position:absolute;inset:0;background:radial-gradient(ellipse at 60% 30%,rgba(29,93,145,.15),transparent 50%),radial-gradient(ellipse at 30% 70%,rgba(198,154,69,.08),transparent 50%)}
.mj-hero-inner{max-width:var(--max-w);margin:0 auto;display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:center;position:relative;z-index:1}
.mj-hero-badge{display:inline-block;background:rgba(198,154,69,.15);color:var(--gold);padding:6px 16px;border-radius:20px;font-size:13px;font-weight:600;margin-bottom:20px;border:1px solid rgba(198,154,69,.2);letter-spacing:.5px}
.mj-hero-left h1{color:#fff;font-size:clamp(28px,4vw,42px);font-weight:800;line-height:1.25;margin-bottom:14px}
.mj-hero-left h1 em{color:var(--gold);font-style:normal}
.mj-hero-left>p{color:rgba(255,255,255,.6);font-size:16px;line-height:1.7;margin-bottom:28px;max-width:520px}
.mj-hero-btns{display:flex;gap:12px;flex-wrap:wrap}
.mj-btn{padding:12px 28px;border-radius:8px;font-size:15px;font-weight:600;border:none;cursor:pointer;display:inline-flex;align-items:center;gap:8px;transition:all .25s;line-height:1.5;min-height:44px}
.mj-btn-primary{background:var(--gold);color:#fff}.mj-btn-primary:hover{background:#b0852e;color:#fff}
.mj-btn-outline{background:transparent;color:rgba(255,255,255,.8);border:1px solid rgba(255,255,255,.2)}.mj-btn-outline:hover{border-color:var(--gold);color:var(--gold)}
.mj-btn-brand{background:var(--brand);color:#fff}.mj-btn-brand:hover{background:#154a73;color:#fff}
.mj-btn-green{background:var(--green);color:#fff}.mj-btn-green:hover{background:#126d53;color:#fff}
.mj-hero-right{position:relative}
.mj-hero-panel{background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.08);border-radius:var(--radius);padding:28px;backdrop-filter:blur(10px)}
.mj-hero-panel-title{color:rgba(255,255,255,.5);font-size:11px;text-transform:uppercase;letter-spacing:2px;margin-bottom:20px}
.mj-hero-trust{display:grid;gap:18px}
.mj-hero-trust-item{display:flex;align-items:center;gap:12px;color:rgba(255,255,255,.65);font-size:14px}
.mj-hero-trust-item svg{flex-shrink:0;width:24px;height:24px}

/* Trust cards below hero */
.mj-trust-row{max-width:var(--max-w);margin:-30px auto 0;padding:0 24px;position:relative;z-index:10;display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.mj-trust-card{background:var(--card);border-radius:var(--radius);padding:20px 24px;border:1px solid var(--border);box-shadow:0 2px 8px rgba(0,0,0,.04);display:flex;align-items:center;gap:14px;transition:transform .2s}
.mj-trust-card:hover{transform:translateY(-2px);box-shadow:0 8px 24px rgba(0,0,0,.08)}
.mj-trust-icon{flex-shrink:0}
.mj-trust-icon svg{width:32px;height:32px}
.mj-trust-text strong{display:block;font-size:15px;color:var(--text);margin-bottom:2px}
.mj-trust-text span{font-size:13px;color:var(--text2)}

/* Section */
.mj-section{padding:70px 24px}
.mj-section-inner{max-width:var(--max-w);margin:0 auto}
.mj-section-title{font-size:26px;font-weight:800;color:var(--text);margin-bottom:8px}
.mj-section-sub{color:var(--text2);font-size:16px;margin-bottom:36px}

/* Cards */
.mj-card-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.mj-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:24px;transition:all .25s;box-shadow:0 2px 8px rgba(0,0,0,.03)}
.mj-card:hover{transform:translateY(-3px);box-shadow:0 12px 32px rgba(0,0,0,.08);border-color:var(--brand)}
.mj-card h3{font-size:17px;font-weight:700;margin-bottom:8px;color:var(--text)}
.mj-card p{font-size:14px;color:var(--text2);line-height:1.6}

/* Product Card */
.mj-prod-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.mj-prod-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:20px;transition:all .25s;box-shadow:0 2px 8px rgba(0,0,0,.03)}
.mj-prod-card:hover{transform:translateY(-3px);box-shadow:0 12px 32px rgba(0,0,0,.08);border-color:var(--gold)}
.mj-prod-code{font-family:Inter,Arial,sans-serif;font-size:12px;font-weight:700;color:var(--brand);letter-spacing:1px;margin-bottom:4px}
.mj-prod-name{font-size:15px;font-weight:700;margin-bottom:10px}
.mj-prod-meta{display:grid;grid-template-columns:1fr 1fr;gap:4px;font-size:12px;color:var(--text2);margin-bottom:10px}
.mj-prod-meta span{color:var(--text);font-weight:600}

/* Steps */
.mj-steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.mj-step{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:28px;text-align:center;position:relative;box-shadow:0 2px 8px rgba(0,0,0,.03)}
.mj-step-num{width:44px;height:44px;border-radius:50%;background:var(--brand);color:#fff;font-size:18px;font-weight:800;display:flex;align-items:center;justify-content:center;margin:0 auto 16px;font-family:Inter,Arial,sans-serif}
.mj-step h3{font-size:16px;font-weight:700;margin-bottom:8px}
.mj-step p{font-size:13px;color:var(--text2);line-height:1.6}

/* FAQ */
.mj-faq{max-width:800px;margin:0 auto}
.mj-faq-item{border:1px solid var(--border);border-radius:var(--radius);margin-bottom:10px;overflow:hidden;background:var(--card)}
.mj-faq-q{padding:14px 20px;font-weight:600;cursor:pointer;display:flex;justify-content:space-between;align-items:center;font-size:15px;user-select:none}
.mj-faq-q::after{content:"+";font-size:20px;color:var(--brand);transition:transform .3s}
.mj-faq-item.open .mj-faq-q::after{content:"−"}
.mj-faq-a{padding:0 20px 14px;font-size:14px;color:var(--text2);line-height:1.7;display:none}
.mj-faq-item.open .mj-faq-a{display:block}

/* Info Cards */
.mj-info-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.mj-info-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:24px;box-shadow:0 2px 8px rgba(0,0,0,.03)}
.mj-info-card h3{font-size:17px;font-weight:700;margin-bottom:10px;text-align:center}
.mj-info-card p,.mj-info-card ul{font-size:14px;color:var(--text2);line-height:1.7}
.mj-info-card ul{padding-left:18px}
.mj-info-card ul li{margin-bottom:6px}

/* Table */
.mj-table-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch;margin:20px 0;border:1px solid var(--border);border-radius:var(--radius);background:var(--card);box-shadow:0 2px 8px rgba(0,0,0,.03)}
.mj-table-wrap::before{content:"← 左右滑动查看完整参数 →";display:none;text-align:center;padding:10px;background:var(--bg);font-size:12px;color:var(--text2)}
.mj-table{width:100%;border-collapse:collapse;font-size:13px;min-width:900px}
.mj-table thead{position:sticky;top:0;z-index:2}
.mj-table th{background:var(--primary);color:#fff;padding:12px 8px;font-size:11px;font-weight:600;text-align:center;white-space:nowrap}
.mj-table th:first-child,.mj-table th:nth-child(2){text-align:left}
.mj-table td{padding:10px 8px;border-bottom:1px solid var(--border);text-align:center}
.mj-table td:first-child,.mj-table td:nth-child(2){text-align:left}
.mj-table tr:nth-child(even){background:#f8fafc}
.mj-table tr:hover td{background:#e8f2fa}
.mj-table .mj-code{font-family:Inter,Arial,sans-serif;font-weight:700;color:var(--brand)}
.mj-table .mj-name{font-weight:600}
.mj-table .mj-margin{color:var(--gold);font-weight:700;font-family:Inter,Arial,sans-serif}

/* Warning box */
.mj-warn{background:var(--warn-bg);border:1px solid rgba(138,90,0,.15);border-radius:var(--radius);padding:20px 24px}
.mj-warn p{color:var(--warn-text);font-size:14px;line-height:1.7}
.mj-warn strong{color:#6b3a00}

/* Identity notice */
.mj-identity{background:var(--card);border:1px solid var(--border);border-left:4px solid var(--brand);border-radius:var(--radius);padding:20px 24px;margin:30px 0}
.mj-identity p{font-size:14px;color:var(--text2);line-height:1.7}

/* News */
.mj-news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.mj-news-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;transition:all .25s;box-shadow:0 2px 8px rgba(0,0,0,.03)}
.mj-news-card:hover{transform:translateY(-3px);box-shadow:0 12px 32px rgba(0,0,0,.08)}
.mj-news-img{height:160px;background:linear-gradient(135deg,var(--primary),var(--brand));display:flex;align-items:center;justify-content:center;color:rgba(255,255,255,.5);font-size:13px}
.mj-news-body{padding:18px}
.mj-news-cat{display:inline-block;background:rgba(29,93,145,.08);color:var(--brand);padding:3px 12px;border-radius:20px;font-size:12px;font-weight:600;margin-bottom:10px}
.mj-news-title{font-size:16px;font-weight:700;line-height:1.4;margin-bottom:6px;color:var(--text)}
.mj-news-excerpt{font-size:13px;color:var(--text2);margin-bottom:10px}
.mj-news-meta{font-size:12px;color:var(--text2)}

/* Footer */
.mj-footer{background:var(--dark);padding:60px 24px 30px;color:rgba(255,255,255,.6)}
.mj-footer-grid{max-width:var(--max-w);margin:0 auto;display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;margin-bottom:40px}
.mj-footer h4{color:#fff;font-size:15px;font-weight:700;margin-bottom:14px}
.mj-footer p,.mj-footer a{font-size:13px;line-height:1.8;display:block}
.mj-footer a{color:rgba(255,255,255,.45)}.mj-footer a:hover{color:var(--gold)}
.mj-footer-bottom{max-width:var(--max-w);margin:0 auto;border-top:1px solid rgba(255,255,255,.08);padding-top:24px}
.mj-footer-links{display:flex;gap:16px;flex-wrap:wrap;margin-bottom:12px}
.mj-footer-links a{font-size:12px;color:rgba(255,255,255,.35)}
.mj-footer-risk{font-size:12px;color:rgba(255,255,255,.3);line-height:1.7}
.mj-footer-risk strong{color:var(--gold)}

/* Banner */
.mj-banner{background:linear-gradient(135deg,var(--primary),var(--dark));padding:100px 24px 50px;text-align:center}
.mj-banner h1{color:#fff;font-size:clamp(26px,4vw,38px);font-weight:800;margin-bottom:12px}
.mj-banner p{color:rgba(255,255,255,.6);font-size:17px;max-width:700px;margin:0 auto}

/* Content */
.mj-content{max-width:var(--max-w);margin:0 auto;padding:40px 24px}
.mj-content h2{font-size:22px;font-weight:700;margin:40px 0 16px;padding-bottom:8px;border-bottom:2px solid var(--brand)}
.mj-content h3{font-size:18px;font-weight:700;margin:24px 0 12px}
.mj-content p{margin-bottom:14px;color:var(--text2);line-height:1.7}

/* Mobile */
@media(max-width:1024px){
  .mj-card-grid,.mj-prod-grid{grid-template-columns:repeat(2,1fr)}
  .mj-footer-grid{grid-template-columns:1fr 1fr}
  .mj-info-grid{grid-template-columns:1fr}
  .mj-steps{grid-template-columns:repeat(2,1fr)}
  .mj-hero-inner{grid-template-columns:1fr;gap:40px}
  .mj-trust-row{grid-template-columns:1fr}
  .mj-news-grid{grid-template-columns:1fr}
}
@media(max-width:768px){
  :root{--nav-h:var(--nav-h-m)}
  .mj-nav-links{display:none}
  .mj-hamburger{display:block}
  .mj-hero{padding:100px 16px 50px}
  .mj-section{padding:50px 16px}
  .mj-card-grid,.mj-prod-grid{grid-template-columns:1fr}
  .mj-footer-grid{grid-template-columns:1fr}
  .mj-banner{padding:90px 16px 40px}
  .mj-steps{grid-template-columns:1fr}
  .mj-table-wrap::before{display:block}
  .mj-table{min-width:800px}
}