*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --primary:#e47b02;--primary-hover:#ed8f0c;--accent:#fb4a3e;--accent-hover:#f03f33;
  --dark:#1f2933;--text:#3e4c59;--text-light:#7b8794;--bg:#fff;--bg-light:#f9f9fb;
  --bg-footer:#f1f6ff;--border:#f1f1f1;--max-width:1290px;
}
html{scroll-behavior:smooth}
body{font-family:"Microsoft YaHei","PingFang SC","Helvetica Neue",Arial,sans-serif;font-size:16px;line-height:1.7;color:var(--text);background:var(--bg)}
a{color:inherit;text-decoration:none;transition:color .2s}
a:hover{color:var(--primary)}
img{max-width:100%;height:auto;display:block}
ul{list-style:none}
.container{max-width:var(--max-width);margin:0 auto;padding:0 24px}
.site-header{background:var(--bg);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:1000}
.header-inner{display:flex;align-items:center;justify-content:space-between;min-height:70px;padding:0 40px;max-width:var(--max-width);margin:0 auto}
.logo{display:flex;align-items:center;gap:10px;font-size:22px;font-weight:600;color:var(--dark)}
.logo img{width:40px;height:40px}
.logo span{color:var(--primary)}
.nav-menu{display:flex;gap:8px}
.nav-menu a{padding:8px 16px;font-size:14px;letter-spacing:1px;text-transform:uppercase;color:var(--dark)}
.nav-menu a:hover,.nav-menu a.active{color:var(--primary)}
.btn-download{display:inline-block;background:var(--accent);color:#fff;padding:10px 30px;border-radius:4px;font-size:14px;font-weight:500;letter-spacing:1px;text-transform:uppercase;transition:background .2s,box-shadow .2s}
.btn-download:hover{background:var(--accent-hover);color:#fff;box-shadow:0 8px 20px rgba(251,74,62,.25)}
.menu-toggle{display:none;background:none;border:none;font-size:28px;cursor:pointer;color:var(--dark)}
.hero{background:linear-gradient(135deg,#fff8f0 0%,#fff 50%,#f0f6ff 100%);padding:80px 24px 60px;text-align:center}
.hero h1{font-size:48px;color:var(--dark);margin-bottom:16px;font-weight:500;letter-spacing:1px}
.hero .subtitle{font-size:20px;color:var(--text-light);margin-bottom:32px}
.hero .btn-download{font-size:16px;padding:16px 48px}
.section{padding:60px 24px}
.section-title{text-align:center;margin-bottom:48px}
.section-title h2{font-size:36px;color:var(--dark);margin-bottom:12px}
.section-title h3{font-size:28px;color:var(--primary);font-weight:400}
.feature-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:40px;max-width:var(--max-width);margin:0 auto}
.feature-card{background:var(--bg);border-radius:12px;padding:32px;box-shadow:0 4px 24px rgba(0,0,0,.06);transition:transform .2s,box-shadow .2s}
.feature-card:hover{transform:translateY(-4px);box-shadow:0 8px 32px rgba(0,0,0,.1)}
.feature-card h2{font-size:26px;color:var(--dark);margin-bottom:16px}
.feature-card li{padding:8px 0 8px 24px;position:relative;color:var(--text)}
.feature-card li::before{content:"";position:absolute;left:0;top:16px;width:8px;height:8px;background:var(--primary);border-radius:50%}
.feature-card .feature-img{margin-top:20px;border-radius:8px;background:linear-gradient(135deg,#f8f9fa,#e9ecef);height:200px;display:flex;align-items:center;justify-content:center;color:var(--text-light);font-size:14px}
.dict-section{background:var(--bg-light);padding:60px 24px}
.dict-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:32px;max-width:var(--max-width);margin:0 auto}
.dict-item{background:var(--bg);border-radius:12px;padding:28px;box-shadow:0 2px 16px rgba(0,0,0,.04)}
.dict-item h2{font-size:24px;color:var(--dark);margin-bottom:12px}
.dict-item p{color:var(--text);line-height:1.8}
.news-section{padding:60px 24px}
.news-header{text-align:center;margin-bottom:40px}
.news-header h3{font-size:32px;color:var(--dark)}
.news-header p{font-size:14px;color:var(--text-light);letter-spacing:2px;margin-top:4px}
.news-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;max-width:var(--max-width);margin:0 auto}
.news-card{background:var(--bg);border:1px solid var(--border);border-radius:8px;padding:24px;transition:border-color .2s,box-shadow .2s}
.news-card:hover{border-color:var(--primary);box-shadow:0 4px 16px rgba(228,123,2,.1)}
.news-card .title{font-size:18px;font-weight:600;color:var(--dark);margin-bottom:10px;display:block}
.news-card .title:hover{color:var(--primary)}
.news-card .describe{color:var(--text);font-size:14px;line-height:1.7;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.news-card .time{font-size:13px;color:var(--text-light);margin-top:12px}
.download-hero{background:linear-gradient(135deg,#fff8f0,#f0f6ff);padding:60px 24px;text-align:center}
.download-hero h1{font-size:40px;color:var(--dark);margin-bottom:16px}
.download-hero p{font-size:18px;color:var(--text-light);margin-bottom:32px}
.download-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;max-width:900px;margin:40px auto;padding:0 24px}
.download-card{background:var(--bg);border-radius:12px;padding:36px 24px;text-align:center;box-shadow:0 4px 20px rgba(0,0,0,.06);transition:transform .2s}
.download-card:hover{transform:translateY(-4px)}
.download-card .icon{font-size:48px;margin-bottom:16px}
.download-card h3{font-size:20px;color:var(--dark);margin-bottom:8px}
.download-card p{font-size:14px;color:var(--text-light);margin-bottom:20px}
.download-info{max-width:800px;margin:40px auto;padding:0 24px}
.download-info h2{font-size:24px;color:var(--dark);margin-bottom:16px}
.download-info ul{padding-left:20px}
.download-info li{padding:6px 0;color:var(--text);list-style:disc}
.article-header{background:linear-gradient(135deg,#fff8f0,#f0f6ff);padding:48px 24px}
.article-header .container{max-width:800px}
.article-header h1{font-size:32px;color:var(--dark);margin-bottom:12px;line-height:1.4}
.article-meta{font-size:14px;color:var(--text-light)}
.article-body{max-width:800px;margin:0 auto;padding:40px 24px}
.article-body p{margin-bottom:18px;line-height:1.9;color:var(--text)}
.article-body h2{font-size:24px;color:var(--dark);margin:32px 0 16px}
.article-body h3{font-size:20px;color:var(--dark);margin:24px 0 12px}
.article-body ul,.article-body ol{margin:16px 0 16px 24px}
.article-body li{margin-bottom:8px;line-height:1.8}
.breadcrumb{font-size:14px;color:var(--text-light);margin-bottom:16px}
.breadcrumb a{color:var(--primary)}
.site-footer{background:var(--bg-footer);padding:40px 24px 20px}
.footer-nav{text-align:center;margin-bottom:24px}
.footer-nav a{display:inline-block;padding:8px 16px;font-size:14px;color:var(--dark);text-transform:uppercase;letter-spacing:1px}
.footer-nav a:hover{color:var(--primary)}
.footer-copy{text-align:center;font-size:14px;color:#85899e;letter-spacing:1px}
@media(max-width:1024px){.feature-grid,.dict-grid,.news-grid{grid-template-columns:1fr}.download-cards{grid-template-columns:1fr}.hero h1{font-size:36px}}
@media(max-width:768px){.header-inner{padding:0 16px}.nav-menu{display:none;position:absolute;top:70px;left:0;right:0;background:var(--bg);flex-direction:column;padding:16px;border-bottom:1px solid var(--border);box-shadow:0 4px 12px rgba(0,0,0,.08)}.nav-menu.open{display:flex}.menu-toggle{display:block}.hero{padding:48px 16px}.hero h1{font-size:28px}.section-title h2{font-size:28px}}