:root{--bg-page:#f0f2f5;--bg-card:#fff;--bg-section:#fff;--bg-faq:#f0f2f5;--bg-faq-item:#fff;--bg-warning:#ff3b300f;--bg-header:#fff0;--text-primary:#1d2129;--text-secondary:#4e5969;--text-muted:#86909c;--border-card:#e5e6e8;--border-warning:#ff3b3040;--shadow-card:0 1px 3px #0000000a, 0 4px 12px #0000000d;--shadow-card-hover:0 4px 16px #007aff1f, 0 1px 4px #0000000f;--shadow-faq-item:0 1px 4px #0000000a, 0 2px 8px #0000000a;--gradient-header:linear-gradient(135deg, #667eea 0%, #764ba2 100%);--gradient-blue:linear-gradient(135deg, #007aff, #5856d6);--accent-blue:#007aff;--accent-green:#34c759;--accent-orange:#ff9500;--accent-red:#ff3b30}@media (prefers-color-scheme:dark){:root{--bg-page:#0d0d12;--bg-card:#1c1c24;--bg-section:#ffffff0a;--bg-faq:#111118;--bg-faq-item:#1c1c24;--bg-warning:#ff3b301a;--bg-header:#00000080;--text-primary:#e8e8ed;--text-secondary:#a8a8b3;--text-muted:#7c7c89;--border-card:#ffffff14;--border-warning:#ff3b3059;--shadow-card:0 1px 3px #0003, 0 4px 12px #0000004d;--shadow-card-hover:0 4px 16px #007aff33, 0 1px 4px #0000004d;--shadow-faq-item:0 1px 4px #0003, 0 2px 8px #0000004d}}*{box-sizing:border-box;-webkit-tap-highlight-color:transparent;margin:0;padding:0}body{background:var(--bg-page);color:var(--text-primary);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;min-height:100vh;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif;transition:background .3s,color .3s}.app-container{z-index:1;max-width:1200px;margin:0 auto;padding:32px 20px 80px;position:relative}.header{text-align:center;background:var(--bg-header);-webkit-backdrop-filter:blur(12px);border:1px solid var(--border-card);border-radius:24px;margin-bottom:24px;padding:48px 24px 32px}.main-title{text-shadow:0 0 20px 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20px}.loading-text{color:var(--text-muted)!important;margin-top:16px!important;font-size:14px!important}.error-container{text-align:center;padding:40px 20px}.sync-hint{text-align:center;color:var(--text-muted);justify-content:center;align-items:center;gap:6px;margin-bottom:20px;font-size:12px;display:flex}.account-card{background:var(--bg-card);border:1px solid var(--border-card);box-shadow:var(--shadow-card);border-radius:16px;flex-direction:column;gap:14px;padding:18px;transition:transform .2s,box-shadow .25s,border-color .25s;display:flex;position:relative;overflow:hidden}.account-card:before{content:"";opacity:0;width:100%;height:3px;transition:opacity 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.2s;overflow:hidden;background:var(--bg-faq-item)!important;border:1px solid var(--border-card)!important;border-radius:14px!important}.faq-collapse .arco-collapse-item:hover{box-shadow:0 2px 12px #00000014}.faq-collapse .arco-collapse-item-header{color:var(--text-primary)!important;background:var(--bg-faq-item)!important;padding:18px 22px!important;font-size:14px!important;font-weight:600!important;line-height:1.5!important;transition:all .3s!important}.faq-collapse .arco-collapse-item-header:hover{background:var(--bg-faq)!important}.faq-collapse .arco-collapse-item-active .arco-collapse-item-header{background:var(--gradient-header)!important;color:#fff!important;border-radius:14px 14px 0 0!important}.faq-answer-content{color:var(--text-secondary);padding:16px 22px 20px;font-size:14px;line-height:1.9}.faq-answer-content p{margin-bottom:12px}.faq-answer-content ol,.faq-answer-content ul{margin-bottom:12px;padding-left:22px}.faq-answer-content 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