*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:'Noto Sans SC',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;color:#1a1a2e;background:#f0f2f5;line-height:1.7;min-height:100vh}
a{color:#0078d4;text-decoration:none;transition:color .2s}
a:hover{color:#005a9e;text-decoration:underline}
img{max-width:100%;display:block}
ul{list-style:none}
.site-header{background:#fff;box-shadow:0 1px 4px rgba(0,0,0,.08);position:sticky;top:0;z-index:100}
.header-container{max-width:1200px;margin:0 auto;padding:0 20px;display:flex;align-items:center;justify-content:space-between;height:64px}
.logo-area{display:flex;align-items:center;gap:10px}
.site-logo{display:flex;align-items:center;gap:10px;text-decoration:none}
.site-logo:hover{text-decoration:none}
.logo-icon{width:36px;height:36px;background:linear-gradient(135deg,#5058d4,#7c3aed);border-radius:8px;display:flex;align-items:center;justify-content:center}
.logo-icon svg{width:22px;height:22px}
.logo-text{font-size:18px;font-weight:700;color:#1a1a2e;letter-spacing:-.3px}
.nav-list{display:flex;gap:4px;list-style:none}
.nav-link{display:block;padding:6px 14px;border-radius:6px;color:#374151;font-size:15px;font-weight:500;text-decoration:none;transition:all .2s}
.nav-link:hover,.nav-link.active{background:#eff6ff;color:#3b5bdb;text-decoration:none}
.mobile-menu-btn{display:none;border:none;background:none;cursor:pointer;padding:8px;border-radius:6px}
.mobile-menu-btn:hover{background:#f3f4f6}
.mobile-menu-btn span{display:block;width:22px;height:2px;background:#374151;border-radius:2px;margin:4px 0;transition:.3s}
.hero-section{background:linear-gradient(135deg,#1a1a4e 0%,#2d2b8a 50%,#4f46e5 100%);color:#fff;padding:72px 20px 80px;position:relative;overflow:hidden}
.hero-section::before{content:'';position:absolute;top:-50%;right:-10%;width:600px;height:600px;background:radial-gradient(circle,rgba(255,255,255,.06) 0%,transparent 70%);border-radius:50%}
.hero-container{max-width:1200px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;gap:60px;flex-wrap:wrap}
.hero-content{flex:1;min-width:300px}
.hero-badge{display:inline-block;background:rgba(255,255,255,.15);border:1px solid rgba(255,255,255,.3);color:#c7d2fe;font-size:13px;padding:4px 14px;border-radius:50px;margin-bottom:20px;letter-spacing:.5px}
.hero-title{font-size:clamp(28px,5vw,46px);font-weight:800;line-height:1.2;margin-bottom:18px;letter-spacing:-.5px}
.hero-subtitle{font-size:17px;color:#c7d2fe;margin-bottom:32px;line-height:1.7}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 24px;border-radius:8px;font-size:15px;font-weight:600;cursor:pointer;transition:all .25s;text-decoration:none;border:none}
.btn-primary{background:#fff;color:#3730a3}
.btn-primary:hover{background:#e0e7ff;color:#3730a3;text-decoration:none;transform:translateY(-1px);box-shadow:0 4px 16px rgba(0,0,0,.2)}
.btn-secondary{background:rgba(255,255,255,.12);color:#fff;border:1px solid rgba(255,255,255,.3)}
.btn-secondary:hover{background:rgba(255,255,255,.2);color:#fff;text-decoration:none}
.hero-stats{display:flex;gap:40px;margin-top:40px;flex-wrap:wrap}
.stat-item{display:flex;flex-direction:column}
.stat-number{font-size:28px;font-weight:800;color:#fff}
.stat-label{font-size:13px;color:#a5b4fc}
.hero-visual{flex:0 0 auto;display:flex;gap:16px;flex-wrap:wrap}
.visual-card{background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.15);border-radius:16px;padding:20px 24px;text-align:center;color:#fff;min-width:100px;backdrop-filter:blur(4px);transition:transform .3s}
.visual-card:hover{transform:translateY(-4px);background:rgba(255,255,255,.18)}
.card-icon{font-size:32px;margin-bottom:8px}
.visual-card span{font-size:14px;font-weight:600}
.main-content{max-width:1200px;margin:0 auto;padding:48px 20px}
.section-header{text-align:center;margin-bottom:40px}
.section-title{font-size:28px;font-weight:800;color:#1e1b4b;margin-bottom:10px;letter-spacing:-.3px}
.section-desc{color:#6b7280;font-size:16px}
.features-section,.download-section,.articles-section,.news-section,.faq-section{margin-bottom:64px}
.features-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:24px}
.feature-card{background:#fff;border-radius:16px;padding:28px;box-shadow:0 1px 4px rgba(0,0,0,.06);border:1px solid #e5e7eb;transition:all .3s}
.feature-card:hover{box-shadow:0 8px 24px rgba(0,0,0,.1);transform:translateY(-2px)}
.feature-icon{font-size:40px;margin-bottom:16px}
.feature-card h3{font-size:18px;font-weight:700;color:#1e1b4b;margin-bottom:10px}
.feature-card p{font-size:14px;color:#6b7280;line-height:1.7}
.download-cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:24px}
.download-card{background:#fff;border-radius:16px;overflow:hidden;box-shadow:0 1px 4px rgba(0,0,0,.06);border:1px solid #e5e7eb;transition:all .3s}
.download-card:hover{box-shadow:0 8px 24px rgba(0,0,0,.1);transform:translateY(-2px)}
.card-header-windows,.card-header-mac,.card-header-mobile{padding:20px 24px;display:flex;align-items:center;gap:10px;font-size:18px;font-weight:700}
.card-header-windows{background:#0078d4;color:#fff}
.card-header-mac{background:#1a1a1a;color:#fff}
.card-header-mobile{background:#059669;color:#fff}
.download-info-list{padding:16px 24px}
.download-info-list li{padding:6px 0;font-size:14px;color:#374151;border-bottom:1px solid #f3f4f6;display:flex;align-items:center;gap:8px}
.download-info-list li:last-child{border-bottom:none}
.download-info-list li::before{content:'✓';color:#059669;font-weight:700}
.btn-download-platform{display:block;text-align:center;padding:14px;background:#3730a3;color:#fff;font-weight:600;font-size:15px;text-decoration:none;transition:background .2s;margin:0 24px 24px;border-radius:8px}
.btn-download-platform:hover{background:#4338ca;color:#fff;text-decoration:none}
.articles-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(340px,1fr));gap:24px}
.article-card{background:#fff;border-radius:16px;padding:24px;box-shadow:0 1px 4px rgba(0,0,0,.06);border:1px solid #e5e7eb;display:flex;flex-direction:column;transition:all .3s}
.article-card:hover{box-shadow:0 8px 24px rgba(0,0,0,.1);transform:translateY(-2px)}
.article-meta{display:flex;gap:10px;margin-bottom:14px;align-items:center}
.meta-tag{background:#eff6ff;color:#3b5bdb;font-size:12px;font-weight:600;padding:3px 10px;border-radius:50px}
.meta-date{color:#9ca3af;font-size:13px}
.article-title{font-size:17px;font-weight:700;color:#1e1b4b;margin-bottom:10px;line-height:1.5}
.article-title a{color:#1e1b4b;text-decoration:none}
.article-title a:hover{color:#3b5bdb}
.article-excerpt{font-size:14px;color:#6b7280;line-height:1.7;flex:1;margin-bottom:14px}
.read-more{font-size:14px;font-weight:600;color:#3b5bdb;text-decoration:none}
.read-more:hover{text-decoration:underline}
.news-list{background:#fff;border-radius:16px;border:1px solid #e5e7eb;overflow:hidden}
.news-item{display:flex;align-items:center;gap:16px;padding:16px 24px;border-bottom:1px solid #f3f4f6;transition:background .2s}
.news-item:last-child{border-bottom:none}
.news-item:hover{background:#f9fafb}
.news-date{color:#9ca3af;font-size:13px;white-space:nowrap;min-width:100px}
.news-title{flex:1;font-size:15px;font-weight:600;color:#1e1b4b}
.news-title a{color:#1e1b4b;text-decoration:none}
.news-title a:hover{color:#3b5bdb}
.faq-list{max-width:760px;margin:0 auto}
.faq-item{background:#fff;border:1px solid #e5e7eb;border-radius:12px;margin-bottom:12px;overflow:hidden}
summary.faq-question{display:block;padding:18px 24px;font-size:16px;font-weight:600;color:#1e1b4b;cursor:pointer;list-style:none;display:flex;justify-content:space-between;align-items:center;transition:background .2s}
summary.faq-question:hover{background:#f9fafb}
summary.faq-question::after{content:'+';font-size:20px;color:#9ca3af;flex-shrink:0}
.faq-item[open] summary.faq-question::after{content:'−'}
.faq-answer{padding:0 24px 18px;font-size:15px;color:#4b5563;line-height:1.7}
.faq-answer p{margin-top:12px}
.faq-answer p:first-child{margin-top:0}
.article-page{max-width:1200px;margin:0 auto;padding:32px 20px}
.article-header{background:linear-gradient(135deg,#1a1a4e 0%,#2d2b8a 50%,#4f46e5 100%);border-radius:16px;padding:40px 48px;color:#fff;margin-bottom:32px}
.article-breadcrumb{font-size:13px;color:#a5b4fc;margin-bottom:16px}
.article-breadcrumb a{color:#c7d2fe;text-decoration:none}
.article-breadcrumb a:hover{text-decoration:underline}
.breadcrumb-sep{margin:0 6px}
.article-header h1{font-size:clamp(22px,4vw,32px);font-weight:800;margin-bottom:12px;line-height:1.3}
.article-header-meta{display:flex;gap:16px;font-size:13px;color:#a5b4fc}
.article-layout{display:grid;grid-template-columns:1fr 300px;gap:32px;align-items:start}
.article-content{background:#fff;border-radius:16px;padding:36px 40px;border:1px solid #e5e7eb}
.article-toc{background:#f9fafb;border:1px solid #e5e7eb;border-radius:12px;padding:20px 24px;margin-bottom:28px}
.article-toc h4{font-size:14px;font-weight:700;color:#374151;margin-bottom:12px;text-transform:uppercase;letter-spacing:.5px}
.article-toc ol{list-style:decimal;padding-left:20px}
.article-toc li{padding:4px 0}
.article-toc a{color:#3b5bdb;font-size:14px;text-decoration:none}
.article-toc a:hover{text-decoration:underline}
.article-content h2{font-size:20px;font-weight:700;color:#1e1b4b;margin:32px 0 14px;padding-bottom:8px;border-bottom:2px solid #e0e7ff}
.article-content h2:first-child{margin-top:0}
.article-content p{font-size:15px;color:#374151;line-height:1.8;margin-bottom:14px}
.article-content ul{list-style:none;padding:0;margin:14px 0 20px}
.article-content ul li{padding:8px 0 8px 22px;font-size:15px;color:#374151;position:relative;border-bottom:1px solid #f3f4f6}
.article-content ul li:last-child{border-bottom:none}
.article-content ul li::before{content:'•';color:#3b5bdb;font-weight:700;position:absolute;left:4px}
.highlight-box{background:linear-gradient(135deg,#eff6ff,#fdf4ff);border-left:4px solid #3b5bdb;border-radius:0 10px 10px 0;padding:16px 20px;margin:20px 0;font-size:15px;color:#1e1b4b}
.highlight-box strong{color:#3b5bdb}
.download-tip{background:linear-gradient(135deg,#3730a3,#4f46e5);border-radius:12px;padding:16px 20px;margin:24px 0;text-align:center}
.download-tip a{display:inline-flex;align-items:center;gap:8px;color:#fff;font-weight:600;font-size:15px;text-decoration:none}
.download-tip a:hover{color:#e0e7ff;text-decoration:none}
.sidebar{position:sticky;top:80px}
.sidebar-card{background:#fff;border-radius:16px;border:1px solid #e5e7eb;padding:24px;margin-bottom:20px}
.sidebar-card h3{font-size:16px;font-weight:700;color:#1e1b4b;margin-bottom:16px;padding-bottom:10px;border-bottom:2px solid #e0e7ff}
.sidebar-card li{padding:8px 0;border-bottom:1px solid #f3f4f6}
.sidebar-card li:last-child{border-bottom:none}
.sidebar-card a{color:#374151;font-size:14px;text-decoration:none;transition:color .2s}
.sidebar-card a:hover{color:#3b5bdb}
.site-footer{background:#1a1a2e;color:#9ca3af;padding:48px 20px 0}
.footer-container{max-width:1200px;margin:0 auto}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;margin-bottom:40px}
.footer-logo{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-logo-icon{width:32px;height:32px;background:linear-gradient(135deg,#5058d4,#7c3aed);border-radius:6px;display:flex;align-items:center;justify-content:center}
.footer-logo span{font-size:16px;font-weight:700;color:#fff}
.footer-desc{font-size:14px;line-height:1.7;color:#6b7280}
.footer-col h4{font-size:14px;font-weight:700;color:#fff;margin-bottom:16px;text-transform:uppercase;letter-spacing:.5px}
.footer-links li{padding:6px 0}
.footer-links a{color:#9ca3af;font-size:14px;text-decoration:none;transition:color .2s}
.footer-links a:hover{color:#fff;text-decoration:none}
.footer-bottom{border-top:1px solid #2d2d4a;padding:20px 0;text-align:center;font-size:13px;color:#6b7280}
.footer-bottom p+p{margin-top:6px}
.mobile-nav-overlay{display:none;position:fixed;top:64px;left:0;right:0;bottom:0;background:rgba(0,0,0,.5);z-index:99}
.mobile-nav-overlay.active{display:block}
.mobile-nav-list{background:#fff;padding:16px 20px}
.mobile-nav-link{display:block;padding:12px 0;font-size:16px;font-weight:500;color:#374151;text-decoration:none;border-bottom:1px solid #f3f4f6}
.mobile-nav-link:hover{color:#3b5bdb;text-decoration:none}
@media(max-width:1024px){.article-layout{grid-template-columns:1fr}.sidebar{position:static}.footer-grid{grid-template-columns:1fr 1fr}}
@media(max-width:768px){.nav-list{display:none}.mobile-menu-btn{display:block}.hero-container{flex-direction:column}.hero-visual{justify-content:center}.hero-stats{gap:24px}.footer-grid{grid-template-columns:1fr;gap:24px}.article-header{padding:24px}.article-content{padding:24px 20px}.download-cards,.features-grid,.articles-grid{grid-template-columns:1fr}}
@media(max-width:480px){.hero-section{padding:48px 16px 56px}.article-card,.feature-card{padding:20px}}