*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:#FFFFFF;color:#333333;font:16px/1.8 Arial,"PingFang SC","Microsoft YaHei",sans-serif;overflow-x:hidden}img,svg{max-width:100%}a{color:#9B4C14;text-decoration:none;touch-action:manipulation}a:hover{text-decoration:underline}button{font:inherit;cursor:pointer;touch-action:manipulation}h1,h2,h3{color:#1A1A1A;line-height:1.3;margin:0 0 18px}h1{font-size:36px;letter-spacing:.015em}h2{font-size:24px}h3{font-size:19px}p{margin:0 0 16px}.container{width:min(1100px,calc(100% - 36px));margin-inline:auto}.site-header{background:#FFFFFF;border-bottom:1px solid rgba(0,0,0,.08);position:relative;z-index:100}.header-inner{height:74px;display:flex;align-items:center;justify-content:space-between;gap:20px}.brand{flex:0 0 180px;display:flex;align-items:center;color:#1A1A1A;white-space:nowrap}.brand img{height:34px;width:auto;max-width:165px;object-fit:contain}.brand strong{font-size:25px}.main-nav{display:flex;align-items:center;justify-content:center;gap:30px;flex:1;min-width:0;white-space:nowrap}.main-nav a{display:flex;align-items:center;height:72px;border-bottom:2px solid transparent;color:#333333;font-weight:600;padding:0 3px}.main-nav a.active{color:#C45A12;border-bottom:2px solid #FF8A00}.register-btn{display:flex;justify-content:center;align-items:center;min-height:42px;min-width:90px;background:linear-gradient(90deg,#FF8A00 0%,#FFC44D 100%);color:#FFFFFF;border-radius:999px;font-weight:700;white-space:nowrap}.register-btn:hover,.mobile-bottom a:last-child:hover{text-decoration:none;filter:brightness(.97)}.menu-toggle{display:none}.channel-nav{display:flex;align-items:center;gap:25px;padding:13px 0;color:#666666;flex-wrap:wrap;border-bottom:1px solid #eee}.channel-nav a{color:#666666;font-size:14px;min-height:40px;display:inline-flex;align-items:center}.page-intro{padding:42px 0 24px;max-width:850px}.page-intro 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.media{height:220px;aspect-ratio:auto}.feature-media{max-width:450px;margin:10px 0 22px}.feature-media .media-16x9{height:225px;aspect-ratio:auto}.feature-media.portrait{max-width:290px}.feature-media.portrait .media-3x4{height:255px;aspect-ratio:auto}.media-missing{background:#F6F7F9}.section-band{padding:22px;border-radius:16px;background:#F6F7F9;margin:18px 0}.section-band p:last-child{margin-bottom:0}.qa-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin:20px 0}.qa-item{border:1px solid rgba(0,0,0,.08);border-radius:12px;padding:18px;background:white}.qa-item h3{margin-bottom:10px}.partner-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;margin:22px 0}.partner-card{border:1px solid rgba(0,0,0,.08);border-radius:14px;padding:17px;min-width:0}.partner-card .media{height:192px;aspect-ratio:auto;margin-bottom:15px}.partner-card h2{font-size:21px;margin-bottom:8px}.partner-card 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/* 第二版：栏目导览与阅读层次 */
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