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16px;font-size:18px;font-weight:700;color:var(--primary)}.notice-body{text-align:left;font-size:14px;line-height:1.9;color:var(--text)}.notice-body p{margin:0 0 12px;text-indent:0}.notice-body p:not(.notice-sign):not(:first-child){text-indent:2em;text-align:justify}.notice-sign{text-align:right;margin:16px 0 0;color:var(--text)}.notice-check{display:flex;align-items:center;justify-content:center;gap:8px;margin-top:18px;font-size:14px;color:var(--text);cursor:pointer;-webkit-user-select:none;user-select:none}.notice-check input{width:16px;height:16px;accent-color:var(--primary);cursor:pointer}.notice-btn{width:100%;margin-top:14px;background:var(--primary);color:#fff;border:none;border-radius:8px;padding:12px;font-size:15px;font-weight:600;cursor:pointer}.notice-btn:hover:not(:disabled){background:var(--primary-dark, #8f2d2d);filter:brightness(.95)}.notice-btn:disabled{opacity:.5;cursor:not-allowed}.notice-editor{width:100%;box-sizing:border-box;resize:vertical;line-height:1.7;padding:10px 12px;border:1px solid var(--border);border-radius:8px;font-family:inherit;font-size:14px}@media (max-width: 768px){.mobile-topbar{display:flex;align-items:center;gap:10px;position:fixed;top:0;left:0;right:0;height:48px;padding:0 12px;background:var(--sidebar-bg);border-bottom:2px solid var(--border);z-index:90}.mobile-menu-btn{background:none;border:1px solid var(--border-light);border-radius:6px;padding:4px 10px;font-size:18px;color:var(--primary)}.mobile-brand-logo{width:28px;height:28px;border-radius:50%;object-fit:cover}.mobile-brand{font-size:15px;font-weight:700;color:var(--primary-dark);white-space:nowrap}.layout{display:block;height:100vh;height:100dvh}.sidebar{position:fixed;top:0;left:0;bottom:0;width:250px;min-width:250px;z-index:200;transform:translate(-102%);transition:transform .25s ease;box-shadow:4px 0 16px #00000026}.sidebar.mobile-open{transform:translate(0)}.sidebar-mask{display:block;position:fixed;top:0;right:0;bottom:0;left:0;background:#00000059;z-index:150}.collapse-btn{display:none}.main-area{height:calc(100vh - 48px);height:calc(100dvh - 48px);padding:12px}.assistant-page{height:calc(100vh - 72px);height:calc(100dvh - 72px);border-width:1px}.assistant-header{padding:10px 12px;gap:8px}.assistant-icon{font-size:24px}.assistant-title{font-size:15px}.chat-area{padding:12px;gap:10px}.chat-bubble{max-width:88%}.chat-input-bar{padding:8px 10px;gap:8px}.chat-input-bar button{padding:0 16px;font-size:14px}.weike-page{gap:10px}.course-catalog{max-height:170px;border-width:1px}.video-window{padding:8px;border-width:1px}.video-window-head{margin-bottom:8px;gap:8px}.video-player,.video-placeholder,.transcript-view{max-height:none}.transcript-view{padding:14px 16px}.weike-bottom{gap:10px}.panel{border-width:1px;padding:10px}.v-volume{display:none}.login-card{width:min(380px,calc(100vw - 32px));padding:24px 20px 30px}.notice-mask{padding:12px}.notice-modal{padding:22px 18px 24px}.notice-body{font-size:13.5px;line-height:1.8}.kb-page,.admin-page{max-width:none}.kb-title{font-size:18px}.admin-tabs{flex-wrap:wrap;gap:6px}.admin-tab{padding:6px 14px;font-size:13px}.stats-cards{grid-template-columns:repeat(2,1fr);gap:8px}.stats-module-name,.stats-module-val{width:96px}.rank-name{width:90px}.rank-val{width:80px}.kb-doc-item,.admin-course-item{flex-wrap:wrap;padding:10px 12px}.wf-modal-mask{padding:8px}.wf-modal-body{padding:14px 16px}.markdown-body table{display:block;overflow-x:auto;max-width:100%}}@media (min-width: 769px){.sidebar-mask{display:none!important}.sidebar.mobile-open{transform:none;box-shadow:none}}