*{margin:0;padding:0;box-sizing:border-box}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;line-height:1.6;color:#1a1a2e;background:#f8f9fa}
.container{max-width:1200px;margin:0 auto;padding:0 20px}
a{color:#f7931a;text-decoration:none;transition:color .3s}
a:hover{color:#e8850f}
img{max-width:100%;height:auto}

header{background:#1a1a2e;padding:15px 0;position:sticky;top:0;z-index:1000;box-shadow:0 2px 10px rgba(0,0,0,.2)}
header .container{display:flex;justify-content:space-between;align-items:center}
nav ul{display:flex;list-style:none;gap:25px}
nav a{color:#fff;text-decoration:none;font-size:14px;padding:8px 12px;border-radius:6px;transition:all .3s}
nav a:hover{color:#f7931a;background:rgba(247,147,26,.1)}
.logo{display:flex;align-items:center;gap:10px;text-decoration:none}
.logo-icon{width:40px;height:40px;background:linear-gradient(135deg,#f7931a,#ffab40);border-radius:8px;display:flex;align-items:center;justify-content:center}
.logo-icon svg{width:24px;height:24px;fill:#fff}
.logo-text{color:#fff;font-size:18px;font-weight:700}
.mobile-menu-btn{display:none;background:none;border:none;color:#fff;font-size:24px;cursor:pointer}

.breadcrumb{background:#fff;padding:12px 0;border-bottom:1px solid #eee;font-size:14px;color:#666}
.breadcrumb a{color:#666}
.breadcrumb a:hover{color:#f7931a}

.page-hero{background:linear-gradient(135deg,#1a1a2e 0%,#16213e 100%);padding:60px 0;color:#fff;text-align:center}
.page-hero h1{font-size:36px;margin-bottom:15px}
.page-hero p{font-size:16px;opacity:.9;max-width:700px;margin:0 auto}

.hero{background:linear-gradient(135deg,#1a1a2e 0%,#16213e 100%);padding:80px 0;color:#fff;text-align:center}
.hero h1{font-size:42px;margin-bottom:20px}
.hero p{font-size:18px;opacity:.9;max-width:700px;margin:0 auto 30px}
.hero-img{max-width:100%;height:auto;border-radius:16px;margin-top:30px;box-shadow:0 20px 60px rgba(0,0,0,.3)}

.btn{display:inline-block;padding:14px 32px;border-radius:8px;text-decoration:none;font-weight:600;transition:all .3s;cursor:pointer;border:none;font-size:15px}
.btn-primary{background:#f7931a;color:#fff}
.btn-primary:hover{background:#e8850f;transform:translateY(-2px);box-shadow:0 4px 15px rgba(247,147,26,.4)}
.btn-large{padding:18px 40px;font-size:17px}

.section{padding:60px 0}
.section-title{font-size:32px;text-align:center;margin-bottom:40px;color:#1a1a2e}

.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:25px}
.card{background:#fff;border-radius:12px;overflow:hidden;box-shadow:0 4px 20px rgba(0,0,0,.08);transition:transform .3s,box-shadow .3s}
.card:hover{transform:translateY(-5px);box-shadow:0 8px 30px rgba(0,0,0,.12)}
.card img{width:100%;height:200px;object-fit:cover}
.card-body{padding:20px}
.card h3{font-size:18px;margin-bottom:10px;color:#1a1a2e}
.card p{color:#666;font-size:14px;margin-bottom:15px;line-height:1.7}
.card-link{color:#f7931a;text-decoration:none;font-weight:600;font-size:14px}

.compare-table-wrap{overflow-x:auto}
.compare-table{width:100%;border-collapse:collapse;background:#fff;border-radius:12px;overflow:hidden;box-shadow:0 4px 20px rgba(0,0,0,.08)}
.compare-table th,.compare-table td{padding:15px 20px;text-align:left;border-bottom:1px solid #eee}
.compare-table th{background:#1a1a2e;color:#fff;font-weight:600}
.compare-table tr:hover{background:#f8f9fa}

.product-detail{display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:start}
.product-detail.reverse{direction:rtl}
.product-detail.reverse>*{direction:ltr}
.product-images{position:sticky;top:100px}
.product-main-img{width:100%;border-radius:12px;box-shadow:0 10px 40px rgba(0,0,0,.1)}
.product-gallery{display:flex;gap:10px;margin-top:15px}
.product-gallery img{width:80px;height:60px;object-fit:cover;border-radius:8px;cursor:pointer;opacity:.7;transition:opacity .3s}
.product-gallery img:hover{opacity:1}
.product-info h2{font-size:28px;margin-bottom:10px;color:#1a1a2e}
.product-tagline{font-size:16px;color:#666;margin-bottom:25px}
.product-features h3{font-size:18px;margin:25px 0 15px;color:#1a1a2e}
.product-features ul{list-style:none;margin-bottom:20px}
.product-features li{padding:8px 0;padding-left:25px;position:relative;color:#444}
.product-features li::before{content:"✓";position:absolute;left:0;color:#f7931a;font-weight:bold}
.product-features p{color:#666;line-height:1.8}

.toc-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:15px}
.toc-item{display:flex;align-items:center;gap:15px;padding:20px;background:#fff;border-radius:10px;text-decoration:none;color:#1a1a2e;transition:all .3s;box-shadow:0 2px 10px rgba(0,0,0,.05)}
.toc-item:hover{background:#f7931a;color:#fff;transform:translateX(5px)}
.toc-num{font-size:24px;font-weight:700;opacity:.5}
.toc-text{font-size:15px;font-weight:500}

.guide-section{display:grid;grid-template-columns:1fr 400px;gap:50px;align-items:start;margin-bottom:30px}
.guide-section.reverse{grid-template-columns:400px 1fr}
.guide-content h2{font-size:26px;margin-bottom:20px;color:#1a1a2e}
.guide-content h3{font-size:18px;margin:25px 0 12px;color:#1a1a2e}
.guide-content p{color:#555;line-height:1.8;margin-bottom:15px}
.guide-image img{width:100%;border-radius:12px;box-shadow:0 10px 40px rgba(0,0,0,.1)}

.troubleshoot-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(350px,1fr));gap:25px}
.troubleshoot-item{background:#fff;padding:25px;border-radius:12px;box-shadow:0 4px 20px rgba(0,0,0,.08)}
.troubleshoot-item h3{font-size:16px;margin-bottom:12px;color:#1a1a2e}
.troubleshoot-item p{color:#666;font-size:14px;line-height:1.7}

.faq-categories{display:flex;flex-wrap:wrap;gap:15px;justify-content:center}
.faq-cat-item{padding:12px 25px;background:#fff;border-radius:25px;color:#1a1a2e;font-weight:500;transition:all .3s;box-shadow:0 2px 10px rgba(0,0,0,.05)}
.faq-cat-item:hover{background:#f7931a;color:#fff}

.faq-list{max-width:900px;margin:0 auto}
.faq-item{background:#fff;border-radius:12px;margin-bottom:20px;overflow:hidden;box-shadow:0 4px 20px rgba(0,0,0,.08)}
.faq-question{font-size:17px;padding:20px 25px;margin:0;color:#1a1a2e;cursor:pointer;position:relative}
.faq-question::after{content:"+";position:absolute;right:25px;top:50%;transform:translateY(-50%);font-size:24px;color:#f7931a}
.faq-answer{padding:0 25px 20px;color:#555;line-height:1.8}
.faq-answer p{margin-bottom:12px}

.news-layout{display:grid;grid-template-columns:1fr 320px;gap:40px}
.news-card{display:grid;grid-template-columns:300px 1fr;gap:25px;background:#fff;border-radius:12px;overflow:hidden;margin-bottom:25px;box-shadow:0 4px 20px rgba(0,0,0,.08);transition:transform .3s}
.news-card:hover{transform:translateY(-3px)}
.news-img img{width:100%;height:100%;object-fit:cover;min-height:200px}
.news-content{padding:25px 25px 25px 0}
.news-date{font-size:13px;color:#888;margin-bottom:10px;display:block}
.news-content h3{font-size:18px;margin-bottom:12px;color:#1a1a2e;line-height:1.4}
.news-content p{color:#666;font-size:14px;line-height:1.7;margin-bottom:15px}
.news-link{color:#f7931a;font-weight:600;font-size:14px}

.news-sidebar .sidebar-section{background:#fff;border-radius:12px;padding:20px;margin-bottom:20px;box-shadow:0 4px 20px rgba(0,0,0,.08)}
.news-sidebar h3{font-size:16px;margin-bottom:15px;color:#1a1a2e;padding-bottom:10px;border-bottom:2px solid #f7931a}
.sidebar-list{list-style:none}
.sidebar-list li{padding:10px 0;border-bottom:1px solid #eee}
.sidebar-list li:last-child{border:none}
.sidebar-list a{color:#444;font-size:14px}
.sidebar-list a:hover{color:#f7931a}
.sidebar-links{list-style:none}
.sidebar-links li{margin-bottom:10px}
.sidebar-links a{color:#444;font-size:14px;display:block;padding:8px 12px;border-radius:6px;transition:all .3s}
.sidebar-links a:hover{background:#f8f9fa;color:#f7931a}
.security-tips p{padding:10px 0;border-bottom:1px solid #eee;font-size:13px;color:#666}
.security-tips p:last-child{border:none}

.about-content{display:grid;grid-template-columns:1fr 320px;gap:40px}
.about-main h2{font-size:24px;margin:30px 0 15px;color:#1a1a2e}
.about-main h2:first-child{margin-top:0}
.about-main p{color:#555;line-height:1.8;margin-bottom:15px}
.about-features{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;margin:25px 0}
.about-feature{background:#f8f9fa;padding:20px;border-radius:10px}
.about-feature h3{font-size:16px;margin-bottom:10px;color:#1a1a2e}
.about-feature p{font-size:14px;color:#666;margin:0}
.about-sidebar .sidebar-section{background:#fff;border-radius:12px;padding:20px;margin-bottom:20px;box-shadow:0 4px 20px rgba(0,0,0,.08)}
.about-sidebar h3{font-size:16px;margin-bottom:15px;color:#1a1a2e}
.info-list{list-style:none}
.info-list li{padding:8px 0;border-bottom:1px solid #eee;font-size:14px}
.info-list li:last-child{border:none}
.info-list span{color:#888}
.notice-box{background:#fff3cd;padding:15px;border-radius:8px;border-left:4px solid #f7931a}
.notice-box p{font-size:13px;color:#856404;margin-bottom:8px}
.notice-box p:last-child{margin:0}

.risk-alert{background:#fff3cd;border:2px solid #f7931a;border-radius:12px;padding:30px;text-align:center}
.risk-alert h2{color:#856404;margin-bottom:15px}
.risk-alert p{color:#856404;font-size:15px;line-height:1.7}
.risk-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(350px,1fr));gap:25px}
.risk-item{background:#fff;border-radius:12px;padding:30px;box-shadow:0 4px 20px rgba(0,0,0,.08)}
.risk-icon{font-size:32px;margin-bottom:15px}
.risk-item h3{font-size:18px;margin-bottom:12px;color:#1a1a2e}
.risk-item>p{color:#666;line-height:1.7;margin-bottom:15px}
.risk-advice{background:#e8f5e9;padding:15px;border-radius:8px;border-left:4px solid #4caf50}
.risk-advice strong{color:#2e7d32;display:block;margin-bottom:5px}
.risk-advice{color:#2e7d32;font-size:14px}
.other-risks{display:grid;grid-template-columns:repeat(auto-fit,minmax(350px,1fr));gap:20px}
.other-risk-item{background:#fff;padding:25px;border-radius:12px;box-shadow:0 4px 20px rgba(0,0,0,.08)}
.other-risk-item h3{font-size:16px;margin-bottom:10px;color:#1a1a2e}
.other-risk-item p{color:#666;font-size:14px;line-height:1.7}
.responsibility-content{max-width:800px;margin:0 auto}
.responsibility-content>p{text-align:center;margin-bottom:30px;font-size:18px}
.responsibility-list{display:grid;gap:20px}
.responsibility-item{display:flex;gap:20px;align-items:start;background:rgba(255,255,255,.1);padding:20px;border-radius:10px}
.resp-num{width:40px;height:40px;background:#f7931a;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:700;flex-shrink:0}
.responsibility-item p{color:#ccc;line-height:1.7;margin:0}
.disclaimer-content{max-width:800px;margin:0 auto}
.disclaimer-content h3{font-size:18px;margin:25px 0 12px;color:#1a1a2e}
.disclaimer-content p{color:#555;line-height:1.8;margin-bottom:12px}
.final-notice{text-align:center;background:#fff;padding:40px;border-radius:12px;box-shadow:0 4px 20px rgba(0,0,0,.08)}
.final-notice h2{font-size:20px;margin-bottom:15px;color:#1a1a2e}
.final-notice p{color:#666}

.contact-layout{display:grid;grid-template-columns:1fr 320px;gap:40px}
.contact-main h2{font-size:24px;margin-bottom:15px;color:#1a1a2e}
.contact-main h3{font-size:20px;margin:35px 0 20px;color:#1a1a2e}
.contact-main>p{color:#555;line-height:1.8}
.contact-cta{background:linear-gradient(135deg,#1a1a2e,#16213e);padding:40px;border-radius:12px;text-align:center;margin:30px 0}
.contact-cta .btn{margin-bottom:15px}
.cta-note{color:#ccc;font-size:14px;margin:0}
.help-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:20px}
.help-item{background:#f8f9fa;padding:25px;border-radius:12px}
.help-icon{font-size:28px;margin-bottom:12px}
.help-item h4{font-size:16px;margin-bottom:10px;color:#1a1a2e}
.help-item p{font-size:14px;color:#666;line-height:1.7;margin:0}
.common-questions{background:#f8f9fa;padding:25px;border-radius:12px}
.cq-item{display:flex;gap:12px;margin-bottom:15px}
.cq-item:last-child{margin:0}
.cq-q,.cq-a{width:24px;height:24px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:12px;flex-shrink:0}
.cq-q{background:#f7931a;color:#fff}
.cq-a{background:#4caf50;color:#fff}
.cq-item p{margin:0;font-size:14px;color:#555;line-height:1.6}
.contact-sidebar .sidebar-section{background:#fff;border-radius:12px;padding:20px;margin-bottom:20px;box-shadow:0 4px 20px rgba(0,0,0,.08)}
.contact-sidebar h3{font-size:16px;margin-bottom:15px;color:#1a1a2e}
.contact-box{background:linear-gradient(135deg,#1a1a2e,#16213e)!important;color:#fff}
.contact-box h3{color:#fff}
.check-list,.cross-list,.warning-list{list-style:none}
.check-list li,.cross-list li,.warning-list li{padding:8px 0;padding-left:25px;position:relative;font-size:14px;color:#555}
.check-list li::before{content:"✓";position:absolute;left:0;color:#4caf50;font-weight:bold}
.cross-list li::before{content:"✗";position:absolute;left:0;color:#f44336;font-weight:bold}
.warning-list li::before{content:"!";position:absolute;left:0;width:18px;height:18px;background:#f7931a;color:#fff;border-radius:50%;font-size:12px;display:flex;align-items:center;justify-content:center;font-weight:bold}
.feedback-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:20px;margin-top:25px}
.feedback-item{background:#fff;padding:20px;border-radius:10px;box-shadow:0 2px 10px rgba(0,0,0,.05)}
.feedback-item h4{font-size:15px;margin-bottom:8px;color:#1a1a2e}
.feedback-item p{font-size:14px;color:#666;margin:0}

.recommend{background:#1a1a2e;color:#fff}
.recommend .section-title{color:#fff}
.recommend-list{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:20px;list-style:none}
.recommend-item{background:rgba(255,255,255,.1);padding:20px;border-radius:10px}
.recommend-item a{color:#f7931a;font-weight:600;display:block;margin-bottom:8px}
.recommend-item p{color:#ccc;font-size:13px;margin:0}

.choose-guide{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:20px}
.choose-item{background:#fff;padding:25px;border-radius:12px;box-shadow:0 4px 20px rgba(0,0,0,.08)}
.choose-item h3{font-size:16px;margin-bottom:12px;color:#f7931a}
.choose-item p{color:#666;font-size:14px;line-height:1.7;margin:0}

footer{background:#0d0d1a;color:#fff;padding:50px 0 20px}
.footer-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:40px;margin-bottom:40px}
.footer-col h4{font-size:16px;margin-bottom:20px;color:#f7931a}
.footer-col a{color:#ccc;text-decoration:none;display:block;margin-bottom:10px;font-size:14px;transition:color .3s}
.footer-col a:hover{color:#fff}
.footer-bottom{border-top:1px solid #333;padding-top:20px;text-align:center;font-size:13px;color:#888}
.friend-links{margin-top:15px}
.friend-links a{color:#888;margin:0 10px;font-size:12px}
.friend-links a:hover{color:#f7931a}

@media(max-width:992px){
.product-detail,.product-detail.reverse{grid-template-columns:1fr}
.guide-section,.guide-section.reverse{grid-template-columns:1fr}
.news-layout,.about-content,.contact-layout{grid-template-columns:1fr}
.news-card{grid-template-columns:1fr}
.news-img img{height:200px}
.about-features{grid-template-columns:1fr}
}
@media(max-width:768px){
nav ul{display:none}
.mobile-menu-btn{display:block}
.hero h1{font-size:28px}
.hero p{font-size:16px}
.page-hero h1{font-size:26px}
.section-title{font-size:24px}
.product-info h2{font-size:22px}
.risk-grid,.other-risks,.troubleshoot-grid{grid-template-columns:1fr}
.responsibility-item{flex-direction:column;text-align:center}
}

.hero-badge{display:inline-block;margin-bottom:15px;padding:6px 14px;border-radius:20px;background:rgba(247,147,26,.15);color:#f7931a;font-weight:600;font-size:13px;letter-spacing:.5px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;margin-bottom:20px}
.btn-ghost{background:rgba(255,255,255,.1);color:#fff;border:1px solid rgba(255,255,255,.35)}
.btn-ghost:hover{background:rgba(255,255,255,.2)}
.btn-outline{background:transparent;color:#f7931a;border:2px solid #f7931a}
.btn-outline:hover{background:#f7931a;color:#fff}
.section-subtitle{text-align:center;color:#666;margin:-20px auto 40px;max-width:720px}
.compare-table-wrap{margin-top:30px}
.highlight{background:#f0f4f8}
.guide-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:20px;margin-bottom:30px}
.guide-card{background:#fff;padding:20px;border-radius:12px;box-shadow:0 4px 18px rgba(0,0,0,.06)}
.badge{display:inline-block;background:#1a1a2e;color:#fff;padding:4px 10px;border-radius:12px;font-size:12px;margin-bottom:10px}
.media-block{display:grid;grid-template-columns:1.1fr 1fr;gap:30px;align-items:center}
.news{background:#fff}
.news-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:20px}
.news-card{background:#fff;border-radius:12px;overflow:hidden;box-shadow:0 4px 20px rgba(0,0,0,.08)}
.news-card img{width:100%;height:200px;object-fit:cover}
.news-body{padding:20px}
.news-date{display:block;font-size:13px;color:#888;margin-bottom:8px}
.news-link{font-weight:600}
.news .news-card{display:flex;flex-direction:column;margin:0}
.news .news-card:hover{transform:translateY(-3px)}
.about-grid{display:grid;grid-template-columns:1.2fr 1fr;gap:30px;align-items:start}
.about-highlights{display:grid;gap:16px}
.about-highlights h3{margin-bottom:6px;color:#1a1a2e}
.risk-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:20px;margin-bottom:25px}
.contact-panel{display:grid;grid-template-columns:1.1fr 1fr;gap:30px;align-items:start;background:#fff;border-radius:14px;padding:30px;box-shadow:0 4px 20px rgba(0,0,0,.08)}
.contact-tips h4{margin-bottom:10px;color:#1a1a2e}
.legal{background:#fff}
.nav-cta{background:#f7931a;color:#fff!important;border-radius:999px;padding:8px 14px}
.nav-cta:hover{background:#e8850f}

@media(max-width:992px){
  .media-block,.about-grid,.contact-panel{grid-template-columns:1fr}
}
@media(max-width:768px){
  .hero-actions{flex-direction:column}
  .news-card img{height:180px}
}

.check-list li::before{content:"✓"}