 body{margin:0;padding:0;background:url('https://images.gptkong.com/idiom/b/1810_0.png') no-repeat center center fixed;background-size:cover;font-family:'微软雅黑',sans-serif;color:#fff;line-height:1.6;font-size:16px}nav{position:fixed;top:0;left:0;width:100%;background:linear-gradient(90deg,rgba(30,60,114,0.9),rgba(42,82,152,0.9));padding:15px 30px;box-shadow:0 2px 4px rgba(0,0,0,0.5);z-index:1000;display:flex;justify-content:space-between;align-items:center}nav .logo{font-size:1.5em;font-weight:bold;color:#FFD700;text-shadow:2px 2px 4px rgba(0,0,0,0.7)}nav ul{list-style:none;display:flex;margin:0;padding:0}nav ul li{margin-left:20px}nav ul li a{color:#fff;text-decoration:none;font-size:1em;transition:color 0.3s}nav ul li a:hover{color:#FFD700;text-shadow:0 0 10px #FFD700}.chapter-nav{position:fixed;top:60px;left:0;width:100%;background:rgba(0,0,0,0.6);padding:10px 0;z-index:999;display:flex;justify-content:center;overflow-x:auto}.chapter-nav ul{list-style:none;display:flex;margin:0;padding:0}.chapter-nav ul li{margin:0 15px}.chapter-nav ul li a{color:#FFD700;text-decoration:none;font-size:1em;transition:color 0.3s}.chapter-nav ul li a:hover{color:#fff;text-shadow:0 0 10px #FFD700}.content{max-width:1200px;margin:150px auto 50px auto;padding:20px;background:rgba(0,0,0,0.5);border-radius:15px;box-shadow:0 0 30px rgba(0,0,0,0.7)}.content section{margin-bottom:40px;padding:20px;border-radius:10px;background:linear-gradient(135deg,rgba(30,60,114,0.7),rgba(42,82,152,0.7));box-shadow:inset 0 0 10px rgba(0,0,0,0.5);transition:transform 0.3s,background 0.3s}.content section:hover{transform:scale(1.02);background:linear-gradient(135deg,rgba(50,100,174,0.8),rgba(62,120,200,0.8))}.content h2,.content h3,.content h4{color:#FFD700;text-shadow:2px 2px 5px rgba(0,0,0,0.7)}.content h2{font-size:2.5em;margin-bottom:25px;position:relative}.content h3{font-size:2em;margin-top:30px;margin-bottom:15px}.content h4{font-size:1.75em;margin-top:20px;margin-bottom:10px}.content p{font-size:1em;line-height:1.8;margin-bottom:20px;color:#f0f0f0}.content b{color:#FFA500;font-weight:bold;transition:text-shadow 0.3s}.content b:hover{text-shadow:0 0 10px #FFD700}.content i{color:#ADD8E6;font-style:italic}.content span.highlight{background:rgba(255,215,0,0.3);padding:2px 6px;border-radius:4px}table{width:100%;border-collapse:collapse;margin:30px 0;background:rgba(255,255,255,0.1);border-radius:10px;overflow:hidden}table,th,td{border:1px solid #FFD700}th,td{padding:15px;text-align:left}th{background:rgba(255,215,0,0.3);color:#000}td ul{list-style:disc;padding-left:20px;margin:0}.content img{display:block;max-width:90%;width:auto;height:auto;margin:20px auto;border-radius:15px;box-shadow:0 4px 15px rgba(0,0,0,0.5);transition:transform 0.3s,box-shadow 0.3s}.content img:hover{transform:scale(1.05);box-shadow:0 8px 25px rgba(0,0,0,0.7)}@media (max-width:1920px){.content{padding:30px}}@media (max-width:1200px){nav ul li{margin-left:15px}.chapter-nav ul li{margin:0 10px}.content{margin:160px auto 40px auto}}@media (max-width:992px){nav{padding:10px 20px}.chapter-nav ul li{margin:0 8px}.content{padding:25px;margin:170px auto 35px auto}}@media (max-width:768px){nav ul{display:none}.chapter-nav{top:110px}.content{margin:180px auto 30px auto;padding:20px}.content h2{font-size:2em}.content h3{font-size:1.75em}.content h4{font-size:1.5em}.content p{font-size:0.95em}table,th,td{font-size:0.9em;padding:10px}.chapter-nav ul li a{font-size:0.9em}}@media (max-width:480px){.content{margin:190px auto 25px auto;padding:15px}.content h2{font-size:1.75em}.content h3{font-size:1.5em}.content h4{font-size:1.25em}.content p{font-size:0.9em}table,th,td{font-size:0.85em;padding:8px}.chapter-nav{top:100px}}@keyframes glow{0%{text-shadow:0 0 5px #FFD700}100%{text-shadow:0 0 20px #FFD700}}.content b:hover,.content span.highlight:hover{animation:glow 1s infinite alternate}html{scroll-behavior:smooth}
