*{margin:0;padding:0;box-sizing:border-box;}body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans",sans-serif,"Apple Color Emoji","Segoe UI Emoji","Segoe UI Symbol","Noto Color Emoji";background:linear-gradient(135deg,#1a1a2e 0%,#16213e 100%);color:#e0e0e0;line-height:1.6;min-height:100vh;}header{background-color:#16213e;box-shadow:0 2px 8px rgba(0,0,0,0.3);position:sticky;top:0;z-index:1000;}header nav{display:flex;flex-wrap:nowrap;justify-content:space-between;align-items:center;padding:1rem 2rem;max-width:1400px;margin:0 auto;}header nav a{flex:1 1 0;min-width:0;text-align:center;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;color:#ffffff;font-size:1rem;font-weight:500;padding:0.75rem 1rem;transition:all 0.3s ease;border-radius:4px;}header nav a:hover{background-color:#0f4c75;color:#ffd93d;text-decoration:none;transform:translateY(-2px);}@media (max-width:768px){header nav{padding:0.5rem 0.5rem;font-size:0.85rem;}header nav a{padding:0.5rem 0.3rem;font-size:0.8rem;}}main{max-width:1400px;margin:0 auto;padding:2rem;min-height:calc(100vh - 200px);}@media (max-width:768px){main{padding:1rem;}}.breadcrumb{font-size:0.9rem;color:#a0a0a0;margin-bottom:1.5rem;padding:0.75rem;background-color:rgba(255,255,255,0.05);border-radius:6px;}.breadcrumb a{color:#64b5f6;transition:color 0.2s;}.breadcrumb a:hover{color:#ffd93d;text-decoration:underline;}.breadcrumb span{color:#e0e0e0;}h1{font-size:2.2rem;font-weight:700;color:#ffffff;margin-bottom:1.5rem;line-height:1.3;text-shadow:2px 2px 4px rgba(0,0,0,0.3);}h2{font-size:1.8rem;font-weight:600;color:#ffd93d;margin:2rem 0 1rem 0;border-bottom:3px solid #0f4c75;padding-bottom:0.5rem;}h3{font-size:1.3rem;font-weight:600;color:#ffffff;margin-bottom:0.5rem;}h4{font-size:1.1rem;font-weight:500;color:#64b5f6;margin-bottom:0.5rem;}p{margin-bottom:1rem;line-height:1.8;}a{color:#64b5f6;text-decoration:none;transition:color 0.2s;}a:hover{color:#ffd93d;text-decoration:underline;}.more-link{font-size:0.95rem;color:#64b5f6;font-weight:normal;}.hero{text-align:center;padding:3rem 2rem;background:linear-gradient(135deg,rgba(15,76,117,0.3) 0%,rgba(22,33,62,0.3) 100%);border-radius:12px;margin-bottom:3rem;box-shadow:0 4px 12px rgba(0,0,0,0.2);}.hero h1{font-size:2.5rem;margin-bottom:1rem;color:#ffd93d;}.hero .intro{font-size:1.2rem;color:#e0e0e0;margin-bottom:1rem;line-height:1.8;}.hero .intro-detail{font-size:1rem;color:#b0b0b0;line-height:1.8;max-width:900px;margin:0 auto;}@media (max-width:768px){.hero{padding:2rem 1rem;}.hero h1{font-size:1.8rem;}.hero .intro{font-size:1rem;}.hero .intro-detail{font-size:0.9rem;}}section{margin-bottom:3rem;}.featured,.hot-section,.latest-section{background-color:rgba(255,255,255,0.03);padding:2rem;border-radius:12px;box-shadow:0 2px 8px rgba(0,0,0,0.2);}.list-note{background-color:rgba(100,181,246,0.1);border-left:4px solid #64b5f6;padding:1rem;margin-bottom:2rem;border-radius:6px;}.list-note ul{list-style:none;margin-top:0.5rem;}.list-note ul li{margin-bottom:0.5rem;}.list-note ul li a{color:#64b5f6;font-weight:500;}.video-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:1.5rem;margin-top:1.5rem;}@media (max-width:768px){.video-grid{grid-template-columns:1fr;gap:1rem;}}.video-card{background:linear-gradient(135deg,rgba(15,76,117,0.2) 0%,rgba(22,33,62,0.2) 100%);border:1px solid rgba(100,181,246,0.2);border-radius:10px;padding:1.5rem;transition:all 0.3s ease;box-shadow:0 2px 6px rgba(0,0,0,0.15);}.video-card:hover{transform:translateY(-5px);box-shadow:0 6px 20px rgba(100,181,246,0.3);border-color:#64b5f6;}.video-card h3{margin-bottom:0.75rem;}.video-card h3 a{color:#ffffff;font-size:1.2rem;font-weight:600;}.video-card h3 a:hover{color:#ffd93d;}.card-meta{font-size:0.85rem;color:#a0a0a0;margin-bottom:0.75rem;}.card-oneline{font-size:0.95rem;color:#e0e0e0;line-height:1.6;margin-bottom:0.5rem;}.card-summary{font-size:0.9rem;color:#b0b0b0;line-height:1.6;margin-top:0.5rem;border-top:1px solid rgba(255,255,255,0.1);padding-top:0.75rem;}.detail-page{background-color:rgba(255,255,255,0.03);padding:2.5rem;border-radius:12px;box-shadow:0 4px 12px rgba(0,0,0,0.2);}.detail-page h1{font-size:2.5rem;color:#ffd93d;margin-bottom:1.5rem;}.meta-info{background-color:rgba(15,76,117,0.2);border-left:4px solid #64b5f6;padding:1.5rem;margin-bottom:2rem;border-radius:8px;}.meta-info p{margin-bottom:0.5rem;font-size:1rem;color:#e0e0e0;}.meta-info strong{color:#64b5f6;font-weight:600;}.oneline-section,.summary-section,.review-section{margin-bottom:2rem;}.oneline-section p,.summary-section p,.review-section p{font-size:1.05rem;line-height:1.8;color:#e0e0e0;}.related-section{margin-top:3rem;}.related-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:1.5rem;margin-top:1.5rem;}@media (max-width:768px){.related-grid{grid-template-columns:1fr;}.detail-page{padding:1.5rem;}.detail-page h1{font-size:1.8rem;}}.related-item{background:linear-gradient(135deg,rgba(15,76,117,0.2) 0%,rgba(22,33,62,0.2) 100%);border:1px solid rgba(100,181,246,0.2);border-radius:8px;padding:1.25rem;transition:all 0.3s ease;}.related-item:hover{transform:translateY(-3px);box-shadow:0 4px 12px rgba(100,181,246,0.3);border-color:#64b5f6;}.related-item h4 a{color:#64b5f6;font-size:1.1rem;}.related-item h4 a:hover{color:#ffd93d;}.related-item p{font-size:0.9rem;color:#b0b0b0;margin-top:0.5rem;}.invalid-page,.error-page{text-align:center;padding:4rem 2rem;}.invalid-page h1,.error-page h1{color:#ffd93d;margin-bottom:1.5rem;}.invalid-page p,.error-page p{font-size:1.1rem;margin-bottom:1rem;}footer{background-color:#16213e;color:#a0a0a0;text-align:center;padding:2rem;margin-top:4rem;border-top:2px solid #0f4c75;}footer p{margin:0;font-size:0.9rem;}button,.btn{background:linear-gradient(135deg,#0f4c75 0%,#64b5f6 100%);color:#ffffff;border:none;padding:0.75rem 1.5rem;border-radius:6px;font-size:1rem;font-weight:500;cursor:pointer;transition:all 0.3s ease;box-shadow:0 2px 6px rgba(0,0,0,0.2);}button:hover,.btn:hover{background:linear-gradient(135deg,#64b5f6 0%,#ffd93d 100%);transform:translateY(-2px);box-shadow:0 4px 12px rgba(100,181,246,0.4);}#back-to-top{position:fixed;bottom:2rem;right:2rem;width:50px;height:50px;background-color:#0f4c75;color:#ffffff;border:2px solid #64b5f6;border-radius:50%;font-size:1.5rem;display:none;align-items:center;justify-content:center;cursor:pointer;transition:all 0.3s ease;z-index:999;box-shadow:0 4px 12px rgba(0,0,0,0.3);}#back-to-top:hover{background-color:#64b5f6;transform:translateY(-3px);box-shadow:0 6px 16px rgba(100,181,246,0.5);}#back-to-top.show{display:flex;}@media (max-width:768px){#back-to-top{bottom:1rem;right:1rem;width:45px;height:45px;font-size:1.3rem;}}