* { margin: 0; padding: 0; box-sizing: border-box; font-family: 'Microsoft YaHei', 'PingFang SC', sans-serif; }
body { background-color: #f9f9f9; color: #333; line-height: 1.6; padding-bottom: 60px; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }

/* Header */
.header { background-color: #ffffff; box-shadow: 0 2px 10px rgba(0,0,0,0.05); position: sticky; top: 0; z-index: 1000; }
.header-inner { display: flex; justify-content: space-between; align-items: center; height: 80px; }
.logo { display: flex; flex-direction: column; justify-content: center; align-items: flex-start; }
.logo-main { font-size: 26px; font-weight: bold; color: #ff5722; line-height: 1.1; letter-spacing: 0.5px;}
.logo-sub { font-size: 13px; color: #ff5722; letter-spacing: 4px; margin-top: 2px;}
.nav-links { display: flex; gap: 30px; align-items: center; }
.nav-links > li { position: relative; font-weight: 500; font-size: 16px;}
.nav-links > li:hover { color: #ff5722; }
.dropdown { display: none; position: absolute; top: 100%; left: 0; background: #fff; box-shadow: 0 4px 10px rgba(0,0,0,0.1); width: 150px; border-radius: 4px; padding-top: 10px;}
.nav-links > li:hover .dropdown { display: block; }
.dropdown li { padding: 10px 15px; border-bottom: 1px solid #eee; font-size: 14px; }
.dropdown li:hover { background: #f5f5f5; color: #ff5722; }
.header-btns { display: flex; gap: 15px; align-items: center; }
.btn { padding: 8px 20px; border-radius: 20px; font-size: 14px; cursor: pointer; transition: all 0.3s; text-align: center;}
.btn-primary { background-color: #ff5722; color: #fff; border: 1px solid #ff5722; }
.btn-primary:hover { background-color: #e64a19; }
.btn-outline { background-color: transparent; color: #ff5722; border: 1px solid #ff5722; }
.btn-outline:hover { background-color: #ff5722; color: #fff; }

/* Hero */
.hero { background: linear-gradient(135deg, #1a1a1a 0%, #3a1c1c 100%); color: #fff; padding: 80px 0; text-align: center; position: relative; overflow: hidden; }
.hero::before { content: ''; position: absolute; top: 0; left: 0; width: 100%; height: 100%; background: radial-gradient(circle, rgba(255,87,34,0.1) 0%, transparent 70%); z-index: 0; }
.hero-content { position: relative; z-index: 1; }
.hero h1 { font-size: 42px; color: #ff5722; margin-bottom: 15px; letter-spacing: 2px; }
.hero-partner { font-size: 20px; color: #ffffff; margin-bottom: 25px; font-weight: bold; letter-spacing: 1px; }
.hero-partner span { color: #ff5722; }
.hero-divider { width: 80px; height: 3px; background: #ff5722; margin: 0 auto 30px; }
.hero p.hero-desc { font-size: 16px; max-width: 900px; margin: 0 auto 50px; color: #ddd; line-height: 1.8; text-align: justify; text-indent: 2em;}
.stats { display: flex; justify-content: center; gap: 60px; border-top: 1px solid rgba(255,255,255,0.1); padding-top: 40px; flex-wrap: wrap; }
.stat-item { text-align: center; }
.stat-icon { font-size: 30px; color: #ff5722; margin-bottom: 10px; }
.stat-text { font-size: 18px; font-weight: bold; }
.stat-text span { color: #ff5722; font-size: 24px; }

/* Sections */
.section { padding: 70px 0; background: #fff; }
.section-bg { background: #f9f9f9; }
.section-title { font-size: 28px; color: #333; text-align: center; margin-bottom: 50px; position: relative; }
.section-title::after { content: ''; display: block; width: 50px; height: 3px; background: #ff5722; margin: 15px auto 0; }
.about-box { background: #fff; padding: 50px; border-radius: 10px; box-shadow: 0 4px 20px rgba(0,0,0,0.03); }
.content-text { font-size: 16px; color: #444; line-height: 2; text-indent: 2em; margin-bottom: 25px; text-align: justify; }
.content-title { font-size: 20px; color: #333; font-weight: bold; margin: 40px 0 20px; border-left: 4px solid #ff5722; padding-left: 15px; }

.features-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 30px; }
.feature-card { text-align: center; padding: 30px 20px; background: #fff; border-radius: 10px; box-shadow: 0 4px 15px rgba(0,0,0,0.05); transition: transform 0.3s; }
.feature-card:hover { transform: translateY(-5px); }
.feature-icon { font-size: 40px; margin-bottom: 15px; }
.feature-card h3 { font-size: 18px; margin-bottom: 10px; color: #333; }
.feature-card p { font-size: 14px; color: #777; }

.products-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
.product-card { background: #fff; border-radius: 10px; overflow: hidden; box-shadow: 0 4px 15px rgba(0,0,0,0.05); padding: 30px; border-top: 4px solid #ff5722; }
.product-card h3 { font-size: 20px; margin-bottom: 15px; color: #333; }
.product-card p { font-size: 14px; color: #666; line-height: 1.6; margin-bottom: 20px; }
.product-card a { color: #ff5722; font-weight: bold; font-size: 14px; }

.news-list { display: flex; flex-direction: column; gap: 20px; }
.news-item { display: flex; justify-content: space-between; align-items: center; padding: 20px; background: #fff; border-radius: 8px; box-shadow: 0 2px 10px rgba(0,0,0,0.03); border-left: 4px solid #ff5722; }
.news-title { font-size: 16px; font-weight: 500; color: #333; flex: 1; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; margin-right: 20px;}
.news-date { font-size: 14px; color: #999; }

/* Footer */
.footer { background: #ffffff; border-top: 1px solid #eee; padding: 40px 0 20px; color: #666; }
.footer-inner { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 30px; }
.footer-col { flex: 1; min-width: 200px; }
.footer-col h3 { font-size: 16px; color: #333; margin-bottom: 20px; }
.footer-col p { font-size: 14px; margin-bottom: 10px; line-height: 1.6;}
.footer-col ul li { margin-bottom: 10px; font-size: 14px; }
.footer-col ul li a:hover { color: #ff5722; }
.contact-info { display: flex; flex-direction: column; gap: 10px; }
.contact-info span { display: inline-block; background: #ff5722; color: #fff; padding: 5px 10px; border-radius: 5px; font-size: 12px; margin-right: 10px; }
.footer-bottom { text-align: center; border-top: 1px solid #eee; margin-top: 30px; padding-top: 20px; font-size: 12px; color: #999; }

.mobile-bottom-bar { display: none; position: fixed; bottom: 0; left: 0; width: 100%; background: #fff; box-shadow: 0 -2px 10px rgba(0,0,0,0.1); z-index: 1000; padding: 10px; gap: 10px; }
.mobile-bottom-bar .btn { flex: 1; text-align: center; padding: 12px 0; font-size: 16px; border-radius: 5px;}

@media (max-width: 992px) {
    .features-grid { grid-template-columns: repeat(2, 1fr); }
    .products-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
    .nav-links, .header-btns { display: none; }
    .hero h1 { font-size: 28px; }
    .hero-partner { font-size: 16px; padding: 0 10px;}
    .hero p.hero-desc { font-size: 14px; padding: 0 10px;}
    .stats { gap: 30px; }
    .stat-text { font-size: 14px; }
    .stat-text span { font-size: 18px; }
    .features-grid, .products-grid { grid-template-columns: 1fr; }
    .about-box { padding: 25px 20px; }
    .content-text { font-size: 15px; }
    .footer-inner { flex-direction: column; }
    .mobile-bottom-bar { display: flex; }
    .news-item { flex-direction: column; align-items: flex-start; gap: 10px;}
    .news-title { white-space: normal; }
}
/* 自动换行处理 */
.article-content { font-size: 16px; color: #444; line-height: 2; text-align: justify; white-space: pre-wrap; word-wrap: break-word;}
.article-content img { max-width: 100%; height: auto; border-radius: 8px; margin: 20px 0; }