/* ============================================
   COMPLETE STYLES - No external dependencies
   ============================================ */

/* RESET & BASE */
* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: "Microsoft YaHei","PingFang SC",Arial,sans-serif; color: #333; background: #f8f9fa; line-height: 1.6; padding-top: 70px; }
a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }

/* HEADER */
.header { position: fixed; top: 0; left: 0; width: 100%; z-index: 1000; background: #1a2a6c; box-shadow: 0 2px 20px rgba(0,0,0,0.2); }
.header .container { display: flex; justify-content: space-between; align-items: center; padding: 12px 20px; flex-wrap: wrap; }
.logo { display: flex; align-items: center; gap: 10px; color: #fff; font-size: 22px; font-weight: 900; }
.logo img { height: 40px; border-radius: 4px; width: 40px; object-fit: contain; }
.logo span { color: #ffd700; }
.nav-menu { display: flex; list-style: none; gap: 5px; align-items: center; }
.nav-menu li a { color: rgba(255,255,255,0.85); padding: 8px 18px; border-radius: 6px; font-size: 15px; transition: all 0.3s ease; display: block; }
.nav-menu li a:hover, .nav-menu li a.active { color: #fff; background: rgba(255,255,255,0.15); }
.nav-menu li .wechat-nav-btn { background: #07c160; color: #fff; border-radius: 50px; padding: 8px 20px; font-weight: bold; cursor: pointer; }
.nav-menu li .wechat-nav-btn:hover { background: #06ad56; transform: scale(1.05); }
.menu-toggle { display: none; flex-direction: column; gap: 5px; cursor: pointer; background: none; border: none; padding: 5px; }
.menu-toggle span { display: block; width: 28px; height: 3px; background: #fff; border-radius: 3px; }

/* BANNER SLIDER */
.banner-slider { position: relative; overflow: hidden; height: 550px; background: #1a2a6c; }
.banner-slider .slide { position: absolute; top: 0; left: 0; width: 100%; height: 100%; opacity: 0; transition: opacity 0.8s ease; display: flex; align-items: center; justify-content: center; text-align: center; color: #fff; padding: 20px; }
.banner-slider .slide.active { opacity: 1; }
.banner-slider .slide .slide-bg { position: absolute; top: 0; left: 0; width: 100%; height: 100%; background-size: cover; background-position: center; }
.banner-slider .slide .slide-content { position: relative; z-index: 2; }
.banner-slider .slide .slide-content h1 { font-size: 42px; font-weight: 900; margin-bottom: 15px; text-shadow: 0 2px 20px rgba(0,0,0,0.5); }
.banner-slider .slide .slide-content p { font-size: 18px; opacity: 0.9; max-width: 600px; margin: 0 auto 20px; }
.slider-dots { position: absolute; bottom: 20px; left: 50%; transform: translateX(-50%); z-index: 5; display: flex; gap: 10px; }
.slider-dots .dot { width: 12px; height: 12px; border-radius: 50%; background: rgba(255,255,255,0.5); cursor: pointer;