/* ===== Reset & Base ===== */
*{margin:0;padding:0;box-sizing:border-box}
html,body{height:100%;overflow:hidden;font-family:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',sans-serif;background:#0f172a;color:#e2e8f0}
body{display:flex}

/* ===== Global Scrollbar ===== */
::-webkit-scrollbar{width:8px;height:8px}
::-webkit-scrollbar-track{background:transparent}
::-webkit-scrollbar-thumb{background:transparent;border-radius:10px;border:2px solid transparent;background-clip:content-box}
::-webkit-scrollbar-thumb:hover{background:rgba(99,102,241,.4);border:2px solid transparent;background-clip:content-box}
::-webkit-scrollbar-corner{background:transparent}

/* ===== Layui Dark Overrides ===== */
.layui-btn{border-radius:8px}
.layui-btn-normal{background:linear-gradient(135deg,#6366f1,#818cf8)!important;border:none!important;color:#fff!important}
.layui-btn-normal:hover{background:linear-gradient(135deg,#818cf8,#6366f1)!important;box-shadow:0 4px 12px rgba(99,102,241,.35)}
.layui-form-switch{border-color:#4b5563!important;background:#374151!important}
.layui-form-switch.layui-form-onswitch{border-color:#6366f1!important;background:linear-gradient(135deg,#6366f1,#818cf8)!important}
.layui-form-switch em{color:#9ca3af!important}
.layui-form-switch.layui-form-onswitch em{color:#fff!important}
.layui-form-switch i{background:#6b7280!important}
.layui-form-switch.layui-form-onswitch i{background:#fff!important}
.layui-layer{border-radius:12px!important;overflow:hidden}
.layui-layer-title{background:#1e1b4b!important;color:#e2e8f0!important;border-bottom:1px solid rgba(99,102,241,.2)!important}
.layui-layer-content{background:#1e293b!important;color:#e2e8f0!important}
.layui-layer-btn{background:#1e293b!important;border-top:1px solid rgba(99,102,241,.2)!important}
.layui-layer-btn a{border-radius:8px!important}
.layui-layer-btn .layui-layer-btn0{background:linear-gradient(135deg,#6366f1,#818cf8)!important;border:none!important;color:#fff!important}
.layui-layer-btn .layui-layer-btn1{background:#374151!important;border:1px solid #4b5563!important;color:#e2e8f0!important}

/* ===== Layui Layer Msg Override ===== */
.layui-layer-shade {
    backdrop-filter: blur(12px) !important;
    -webkit-backdrop-filter: blur(12px) !important;
    background-color: rgba(0, 0, 0, 0.35) !important;
}
.layui-layer-msg{background:rgba(30,27,75,.85)!important;border:1px solid rgba(99,102,241,.3)!important;border-radius:12px!important;box-shadow:0 16px 48px rgba(0,0,0,.6)!important;backdrop-filter:blur(20px)!important;-webkit-backdrop-filter:blur(20px)!important;z-index:10000!important}
.layui-layer-msg .layui-layer-content{background:transparent!important;color:#e2e8f0!important}

/* ===== Sidebar ===== */
.sidebar{width:260px;min-width:260px;background:linear-gradient(180deg,#1e1b4b 0%,#0f172a 100%);border-right:1px solid rgba(99,102,241,.15);display:flex;flex-direction:column;height:100vh;transition:width .3s ease, min-width .3s ease, border-right-color .3s ease;z-index:100;flex-shrink:0;box-shadow:2px 0 12px rgba(0,0,0,.3);overflow:hidden;position:relative}
.sidebar.collapsed{width:0;min-width:0;border-right-color:transparent}
/* 折叠时让内容整体向左滑出，而不是被挤压 */
.sidebar-content{display:flex;flex-direction:column;height:100%;padding:16px;overflow:hidden;width:260px;min-width:260px;flex-shrink:0;box-sizing:border-box;position:absolute;top:0;left:0;transition:transform .3s ease}
.sidebar.collapsed .sidebar-content{transform:translateX(-100%)}
.sidebar-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}
.brand{display:flex;align-items:center;gap:8px;font-weight:700;font-size:17px;color:#e2e8f0;letter-spacing:-.01em}
.brand-icon{width:24px;height:24px;border-radius:8px;background:#0f172a;padding:2px;object-fit:contain;display:block}
[data-theme="light"] .brand-icon{background:#fff}
.close-sidebar-btn{display:none}
.new-chat-btn{width:100%;background:linear-gradient(135deg,#6366f1,#818cf8)!important;color:#fff!important;border:none;border-radius:10px;font-size:14px;font-weight:500;cursor:pointer;display:flex;align-items:center;justify-content:center;gap:6px;transition:all .2s;margin-bottom:12px;height:40px;line-height:40px;padding:0}
.new-chat-btn:hover{transform:translateY(-1px);box-shadow:0 4px 12px rgba(99,102,241,.4)}

/* ===== Chat Search Box ===== */
.chat-search-box{display:flex;align-items:center;gap:6px;padding:6px 10px;background:rgba(30,27,75,.5);border:1px solid rgba(99,102,241,.15);border-radius:8px;margin-bottom:10px;transition:border-color .2s}
.chat-search-box:focus-within{border-color:rgba(99,102,241,.4)}
.chat-search-icon{color:#64748b;flex-shrink:0}
.chat-search-input{flex:1;background:none;border:none;outline:none;color:#e2e8f0;font-size:13px;line-height:1.4;min-width:0}
.chat-search-input::placeholder{color:#4b5563}
.chat-search-clear{background:none;border:none;color:#64748b;cursor:pointer;padding:2px;border-radius:4px;display:flex;align-items:center;justify-content:center;flex-shrink:0;transition:color .15s}
.chat-search-clear:hover{color:#e2e8f0}
.chat-search-empty{text-align:center;color:#64748b;font-size:13px;padding:20px 0}

/* ===== Chat Date Header ===== */
.chat-date-header{font-size:11px;color:#64748b;font-weight:600;padding:8px 12px 4px;user-select:none;letter-spacing:.02em;text-transform:uppercase}

.chat-list{flex:1;overflow-y:auto;display:flex;flex-direction:column;gap:0}

/* ===== Chat List Loading Skeleton ===== */
.chat-list-loading{display:flex;flex-direction:column;gap:8px;padding:4px 0}
.chat-list-skeleton{display:flex;align-items:center;gap:10px;padding:8px 12px;border-radius:8px}
.chat-list-skeleton-bar{height:14px;border-radius:6px;background:rgba(99,102,241,.12);animation:chatListPulse 1.5s ease-in-out infinite}
.chat-list-skeleton-bar.short{width:40%}
.chat-list-skeleton-bar.medium{width:65%}
.chat-list-skeleton-bar.long{width:80%}
.chat-list-skeleton-dot{width:8px;height:8px;border-radius:50%;background:rgba(99,102,241,.12);animation:chatListPulse 1.5s ease-in-out infinite;flex-shrink:0}
@keyframes chatListPulse{0%,100%{opacity:.3;background:rgba(99,102,241,.08)}50%{opacity:.8;background:rgba(99,102,241,.18)}}
[data-theme="light"] .chat-list-skeleton-bar{background:rgba(99,102,241,.08)}
[data-theme="light"] .chat-list-skeleton-dot{background:rgba(99,102,241,.08)}
[data-theme="light"] @keyframes chatListPulse{0%,100%{opacity:.3;background:rgba(99,102,241,.05)}50%{opacity:.8;background:rgba(99,102,241,.12)}}
.chat-list::-webkit-scrollbar{width:6px}
.chat-list::-webkit-scrollbar-thumb{background:transparent;border-radius:10px;border:2px solid transparent;background-clip:content-box}
.chat-list:hover::-webkit-scrollbar-thumb{background:rgba(99,102,241,.25);border:2px solid transparent;background-clip:content-box}
.chat-list:hover::-webkit-scrollbar-thumb:hover{background:rgba(99,102,241,.45)}
.chat-item{display:flex;align-items:center;padding:8px 12px;border-radius:8px;cursor:pointer;transition:all .15s;font-size:14px;color:#cbd5e1;position:relative}
.chat-item:hover{background:rgba(99,102,241,.1);color:#e2e8f0}
.chat-item.active{background:rgba(99,102,241,.2);color:#818cf8;font-weight:500}
.chat-item .title{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.chat-item .delete-btn{display:none;background:none;border:none;color:#64748b;cursor:pointer;padding:2px;border-radius:4px;flex-shrink:0}
.chat-item:hover .delete-btn{display:flex}
.chat-item .delete-btn:hover{color:#ef4444;background:rgba(239,68,68,.15)}
.sidebar-footer{border-top:1px solid rgba(99,102,241,.15);padding-top:12px;margin-top:auto;display:flex;justify-content:space-between;align-items:center}
.user-info{display:flex;align-items:center;gap:6px;font-size:13px;color:#94a3b8;flex:1;padding:6px 8px;border-radius:8px;cursor:pointer;transition:all .15s;position:relative;user-select:none}
.user-info:hover{background:rgba(99,102,241,.12);color:#e2e8f0;box-shadow:0 2px 8px rgba(0,0,0,.25)}
.user-info #usernameDisplay{flex:0 1 auto;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.user-info-spacer{flex:1}
.user-info-more{display:flex;align-items:center;justify-content:center;color:#64748b;border-radius:6px;padding:2px 4px;transition:color .15s;flex-shrink:0}
.user-info:hover .user-info-more{color:#818cf8}
.sidebar-actions{display:flex;gap:4px}
[data-theme="light"] .user-info:hover{background:rgba(99,102,241,.08);color:#1e293b;box-shadow:0 2px 8px rgba(99,102,241,.12)}
[data-theme="light"] .user-info-more{color:#94a3b8}
[data-theme="light"] .user-info:hover .user-info-more{color:#6366f1}

/* ===== Icon Button ===== */
.icon-btn{background:none;border:none;padding:6px;border-radius:8px;cursor:pointer;color:#94a3b8;display:flex;align-items:center;justify-content:center;transition:all .15s}
.icon-btn:hover{background:rgba(99,102,241,.15);color:#818cf8}

/* ===== Main Content ===== */
.main-content{flex:1;display:flex;flex-direction:column;height:100vh;min-width:0;transition:all .3s ease;background:#0f172a;position:relative}
.top-bar{display:flex;align-items:center;padding:10px 20px;background:rgba(30,27,75,.5);border-bottom:1px solid rgba(99,102,241,.1);flex-shrink:0;backdrop-filter:blur(10px)}
.chat-title{font-size:16px;font-weight:600;color:#e2e8f0;margin-left:8px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.spacer{flex:1}

/* ===== Chat Container ===== */
/* 注意：不在此处设置 scroll-behavior:smooth，避免流式输出时频繁 scrollTop 导致平滑动画叠加闪烁。
   平滑滚动仅在用户手动操作（点击回到顶部/底部按钮）时由 JS 临时启用。 */
.chat-container{flex:1;overflow-y:auto;overflow-x:hidden;padding:20px;position:relative}
.chat-container::-webkit-scrollbar{width:8px}
.chat-container::-webkit-scrollbar-thumb{background:transparent;border-radius:10px;border:2px solid transparent;background-clip:content-box}
.chat-container:hover::-webkit-scrollbar-thumb{background:rgba(99,102,241,.25);border:2px solid transparent;background-clip:content-box}
.chat-container:hover::-webkit-scrollbar-thumb:hover{background:rgba(99,102,241,.45)}


/* ===== Messages ===== */
.msg-wrapper{margin-bottom:20px;display:flex;flex-direction:column;animation:msgIn .3s ease}
@keyframes msgIn{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}
.msg-wrapper.user{align-items:flex-end}
.msg-wrapper.assistant{align-items:flex-start}
.msg-row{display:flex;align-items:flex-start;gap:10px;max-width:85%;min-width:0}
.msg-wrapper.user .msg-row{flex-direction:row-reverse}
.msg-avatar{width:32px;height:32px;border-radius:10px;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.msg-avatar.user-av{background:#eef2ff}
.msg-avatar.ai-av{background:#ecfdf5}

/* Dark Theme Avatar Backgrounds */
[data-theme="dark"] .msg-avatar.user-av{background:#1e293b}
[data-theme="dark"] .msg-avatar.ai-av{background:#0f172a}
.msg-bubble{padding:12px 16px;border-radius:14px;font-size:14.5px;line-height:1.7;word-break:break-word;overflow-wrap:anywhere;position:relative;min-width:0;max-width:100%}
.msg-wrapper.user .msg-bubble{background:linear-gradient(135deg,#6366f1,#818cf8);color:#fff;border-bottom-right-radius:4px}
.msg-wrapper.assistant .msg-bubble{background:#1e293b;color:#e2e8f0;border-bottom-left-radius:4px;box-shadow:0 1px 3px rgba(0,0,0,.2);border:1px solid rgba(99,102,241,.1)}
.msg-time{font-size:11px;color:#64748b}
.msg-time-top{font-size:11px;color:#64748b;margin-bottom:4px;padding:0 42px}
.msg-wrapper.user .msg-time-top{text-align:right}
.msg-wrapper.assistant .msg-time-top{text-align:left}

/* Message footer */
.msg-footer{display:flex;align-items:center;gap:8px;margin-top:4px;padding:0 42px;font-size:12px;color:#64748b}
.msg-wrapper.user .msg-footer{justify-content:flex-end}
.msg-wrapper.assistant .msg-footer{justify-content:flex-start}
.msg-model-name{color:#818cf8;font-weight:500;font-size:11px;background:rgba(99,102,241,.15);padding:2px 8px;border-radius:4px}
.msg-token-info{font-size:10px;color:#64748b;background:rgba(100,116,139,.08);padding:1px 6px;border-radius:4px;white-space:nowrap}
.msg-token-info.msg-token-thinking{color:#10b981;background:rgba(16,185,129,.08)}
.msg-token-info.msg-token-total{color:#6366f1;background:rgba(99,102,241,.08);font-weight:500}
.msg-token-loading{display:inline-flex;align-items:center;gap:2px}
.token-wave{display:inline-flex;align-items:center;gap:1px;margin-left:2px}
.token-wave span{display:inline-block;width:3px;height:10px;background:#64748b;border-radius:2px;animation:tokenWave 1.2s ease-in-out infinite}
.token-wave span:nth-child(2){animation-delay:0.15s}
.token-wave span:nth-child(3){animation-delay:0.3s}
@keyframes tokenWave{0%,60%,100%{transform:scaleY(0.4);opacity:0.4}30%{transform:scaleY(1);opacity:1}}
.msg-footer .footer-copy-btn{opacity:1;background:none;border:none;color:#64748b;cursor:pointer;padding:2px 6px;border-radius:4px;transition:all .15s;display:flex;align-items:center;justify-content:center}
.msg-footer .footer-copy-btn:hover{color:#818cf8;background:rgba(99,102,241,.15)}
.msg-footer .msg-time-inline{font-size:11px}
.msg-copy-btn{display:none}

/* ===== Thinking Block ===== */
.thinking-block{background:rgba(16,185,129,.08);border:1px solid rgba(16,185,129,.2);border-radius:10px;margin-bottom:10px;overflow:hidden}
.thinking-header{padding:8px 12px;font-size:13px;color:#10b981;cursor:pointer;display:flex;align-items:center;gap:6px;user-select:none}
.thinking-header .arrow{transition:transform .2s;font-size:10px}
.thinking-block.collapsed .arrow{transform:rotate(-90deg)}
.thinking-body{padding:0 12px 10px;font-size:13px;color:#94a3b8;line-height:1.6;max-height:400px;overflow-y:auto}
.thinking-block.collapsed .thinking-body{display:none}
.thinking-body::-webkit-scrollbar{width:5px}
.thinking-body::-webkit-scrollbar-thumb{background:transparent;border-radius:10px;border:1px solid transparent;background-clip:content-box}
.thinking-body:hover::-webkit-scrollbar-thumb{background:rgba(16,185,129,.3);border:1px solid transparent;background-clip:content-box}
.thinking-body:hover::-webkit-scrollbar-thumb:hover{background:rgba(16,185,129,.5)}

/* ===== Code Blocks ===== */
.msg-bubble pre{background:#0f172a!important;border-radius:10px;margin:10px 0;overflow-x:auto;max-width:100%;position:relative}
.code-header{display:flex;justify-content:space-between;align-items:center;padding:8px 14px;background:#1e293b;color:#94a3b8;font-size:12px}
.code-copy-btn{background:none;border:none;color:#94a3b8;cursor:pointer;font-size:12px;display:flex;align-items:center;gap:4px;padding:2px 8px;border-radius:4px;transition:all .15s}
.code-copy-btn:hover{color:#e2e8f0;background:rgba(255,255,255,.1)}
.msg-bubble pre code{display:block;padding:14px;overflow-x:auto;font-size:13px;line-height:1.6;max-width:100%}
.msg-bubble code:not(pre code){background:rgba(99,102,241,.12);padding:2px 6px;border-radius:4px;font-size:13px;color:#818cf8}

/* ===== Tables ===== */
.msg-bubble .table-wrapper{overflow-x:auto;max-width:100%;margin:10px 0;-webkit-overflow-scrolling:touch;border-radius:8px;border:1px solid rgba(99,102,241,.12);position:relative}
.msg-bubble .table-wrapper::after{content:'';position:absolute;top:0;right:0;bottom:0;width:24px;background:linear-gradient(to right,transparent,rgba(15,23,42,.6));pointer-events:none;border-radius:0 8px 8px 0;opacity:0;transition:opacity .2s}
.msg-bubble .table-wrapper.has-overflow::after{opacity:1}
.msg-bubble table{border-collapse:collapse;font-size:13px;width:auto;min-width:100%}
.msg-bubble th,.msg-bubble td{padding:8px 14px;border:1px solid rgba(99,102,241,.15);text-align:left;white-space:nowrap}
.msg-bubble th{background:rgba(99,102,241,.1);font-weight:600;color:#e2e8f0;position:sticky;top:0;z-index:1}
.msg-bubble tr:hover{background:rgba(99,102,241,.05)}
.msg-bubble .table-wrapper::-webkit-scrollbar{height:6px}
.msg-bubble .table-wrapper::-webkit-scrollbar-thumb{background:transparent;border-radius:10px;border:2px solid transparent;background-clip:content-box}
.msg-bubble .table-wrapper:hover::-webkit-scrollbar-thumb{background:rgba(99,102,241,.25);border:2px solid transparent;background-clip:content-box}
.msg-bubble .table-wrapper:hover::-webkit-scrollbar-thumb:hover{background:rgba(99,102,241,.45)}
.msg-bubble .table-wrapper::-webkit-scrollbar-track{background:transparent}

/* ===== Scroll Navigation ===== */
.scroll-nav{position:fixed;right:20px;bottom:80px;display:flex;flex-direction:column;gap:6px;z-index:50;pointer-events:none;transition:right .15s,bottom .15s}
.scroll-nav-btn{width:36px;height:36px;border-radius:50%;background:rgba(30,27,75,.85);border:1px solid rgba(99,102,241,.25);color:#94a3b8;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .2s;pointer-events:auto;backdrop-filter:blur(8px);box-shadow:0 2px 8px rgba(0,0,0,.3)}
.scroll-nav-btn:hover{background:rgba(99,102,241,.3);color:#818cf8;border-color:rgba(99,102,241,.4);transform:translateY(-1px);box-shadow:0 4px 12px rgba(0,0,0,.4)}

/* ===== Input Area ===== */
.input-area{padding:12px 20px 8px;background:rgba(30,27,75,.3);border-top:1px solid rgba(99,102,241,.1);flex-shrink:0;backdrop-filter:blur(10px)}

/* ===== Input Row ===== */
.input-row{display:flex;gap:8px;align-items:flex-end}
.input-textarea-wrap{flex:1;position:relative}
#userInput{width:100%;resize:none;border:1.5px solid rgba(99,102,241,.2);border-radius:12px;padding:10px 14px 38px 14px;font-size:15px;line-height:1.5;max-height:150px;overflow-y:auto;transition:border-color .2s;background:#1e293b;color:#e2e8f0;box-sizing:border-box}
#userInput:focus{outline:none;border-color:#6366f1;background:#1e293b;box-shadow:0 0 0 2px rgba(99,102,241,.12)}
#userInput::placeholder{color:#64748b}

/* 输入框内工具栏 */
.input-inner-toolbar{position:absolute;bottom:8px;left:10px;right:10px;display:flex;align-items:center;gap:8px;pointer-events:none}
.input-inner-toolbar>*{pointer-events:auto}

/* 思考图标按钮 */
.think-icon-btn{width:26px;height:26px;border-radius:8px;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all .15s;background:transparent;border:none;color:#94a3b8;flex-shrink:0}
.think-icon-btn:hover{background:rgba(99,102,241,.12);color:#818cf8}
.think-icon-btn.active{background:linear-gradient(135deg,#4f46e5,#6366f1);color:#fff;border:none;box-shadow:0 2px 8px rgba(79,70,229,.45)}
.think-icon-btn.active:hover{background:linear-gradient(135deg,#4338ca,#4f46e5);color:#fff;box-shadow:0 4px 12px rgba(79,70,229,.55)}

/* 简化模型选择器（输入框右下角） */
.model-select-area{position:relative;margin-left:auto}
.model-select-trigger{display:flex;align-items:center;gap:4px;padding:3px 8px;background:transparent;border:none;border-radius:6px;cursor:pointer;transition:all .15s;font-size:12px;color:#94a3b8;flex-shrink:0}
.model-select-trigger:hover{background:rgba(99,102,241,.08);color:#e2e8f0}
.model-select-trigger.active{background:rgba(99,102,241,.1);color:#e2e8f0}
.model-select-value{display:flex;align-items:center;gap:4px;white-space:nowrap;max-width:120px;overflow:hidden;text-overflow:ellipsis}
.model-select-icon{width:14px;height:14px;border-radius:50%;object-fit:contain;flex-shrink:0}
.model-select-arrow{transition:transform .2s;flex-shrink:0}
.model-select-trigger.active .model-select-arrow{transform:rotate(180deg)}
.model-select-dropdown{display:none;position:absolute;bottom:100%;left:auto;right:0;margin-bottom:6px;background:#1e293b;border:1px solid rgba(99,102,241,.2);border-radius:10px;box-shadow:0 8px 24px rgba(0,0,0,.4);max-height:400px;overflow-y:auto;z-index:1000;min-width:220px}
.model-select-dropdown.active{display:block}
.model-select-dropdown.dropup{top:auto;bottom:100%;margin-top:0;margin-bottom:4px}
.model-select-dropdown::-webkit-scrollbar{width:6px}
.model-select-dropdown::-webkit-scrollbar-thumb{background:transparent;border-radius:10px;border:2px solid transparent;background-clip:content-box}
.model-select-dropdown:hover::-webkit-scrollbar-thumb{background:rgba(99,102,241,.25);border:2px solid transparent;background-clip:content-box}
.model-select-dropdown:hover::-webkit-scrollbar-thumb:hover{background:rgba(99,102,241,.45)}
.model-group-header{display:flex;align-items:center;gap:6px;padding:8px 12px;font-size:12px;font-weight:600;color:#818cf8;background:rgba(99,102,241,.08);border-bottom:1px solid rgba(99,102,241,.1);position:relative;z-index:1}
.model-group-icon{width:20px;height:20px;border-radius:50%;object-fit:contain}
.model-item{display:flex;align-items:center;gap:8px;padding:8px 12px;cursor:pointer;transition:all .15s;font-size:13px;color:#94a3b8}
.model-item:hover{background:rgba(99,102,241,.1);color:#e2e8f0}
.model-item.selected{background:rgba(99,102,241,.15);color:#818cf8;font-weight:500}
.model-item-icon{width:20px;height:20px;border-radius:50%;object-fit:contain;flex-shrink:0}
.model-item-name{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* 发送按钮（输入框内右下角） */
.send-btn{width:28px;height:28px;border-radius:8px;background:transparent;color:#94a3b8;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .15s;flex-shrink:0;border:none;padding:0;margin-left:4px}
.send-btn:hover{background:rgba(99,102,241,.12);color:#818cf8}
.send-btn.stop{background:transparent;color:#ef4444}
.send-btn.stop:hover{background:rgba(239,68,68,.12);color:#dc2626}
[data-theme="light"] .send-btn{color:#64748b}
[data-theme="light"] .send-btn:hover{background:rgba(99,102,241,.1);color:#6366f1}
[data-theme="light"] .send-btn.stop{color:#dc2626}
[data-theme="light"] .send-btn.stop:hover{background:rgba(239,68,68,.08);color:#dc2626}
.input-footer{text-align:center;font-size:12px;color:#4b5563;margin-top:6px}

/* ===== Loading Dots ===== */
.loading-dots{display:flex;gap:4px;padding:12px}
.loading-dots span{width:8px;height:8px;background:#6366f1;border-radius:50%;animation:bounce .6s infinite alternate}
.loading-dots span:nth-child(2){animation-delay:.2s}
.loading-dots span:nth-child(3){animation-delay:.4s}
@keyframes bounce{to{opacity:.3;transform:translateY(-6px)}}

/* ===== Overlay ===== */
.overlay{display:none;position:fixed;inset:0;background:rgba(0,0,0,.5);z-index:999}
.overlay.active{display:block}

/* ===== Responsive ===== */
@media(max-width:768px){
.sidebar{position:fixed;top:0;left:0;height:100vh;width:85%;max-width:320px;min-width:0;transform:translateX(-100%);z-index:1000;box-shadow:4px 0 20px rgba(0,0,0,.3);overflow:hidden;transition:transform .3s ease}
.sidebar.open{transform:translateX(0);width:85%;max-width:320px;min-width:0}
.sidebar.collapsed{transform:translateX(-100%);width:85%;max-width:320px;min-width:0}
.sidebar .sidebar-content{position:absolute;top:0;left:0;width:100%;min-width:0;transform:none}
.sidebar.collapsed .sidebar-content{transform:none}
.close-sidebar-btn{display:flex}
.chat-container{padding:12px}
.msg-row{max-width:92%}
.input-area{padding:8px 12px 6px}
.model-select-area{max-width:160px}
.model-select-value{max-width:100px}
.scroll-nav-btn{width:32px;height:32px}
.scroll-nav-btn svg{width:16px;height:16px}
.scroll-nav{right:12px;bottom:12px;gap:4px}
}

/* ===== Lists in messages ===== */
.msg-bubble ul,.msg-bubble ol{padding-left:20px;margin:6px 0}
.msg-bubble li{margin:4px 0}
.msg-bubble blockquote{border-left:3px solid #6366f1;padding-left:12px;margin:8px 0;color:#94a3b8}
.msg-bubble h1,.msg-bubble h2,.msg-bubble h3,.msg-bubble h4{margin:12px 0 6px;color:#e2e8f0}
.msg-bubble h1{font-size:1.4em} .msg-bubble h2{font-size:1.25em} .msg-bubble h3{font-size:1.1em}
.msg-bubble p{margin:6px 0}
.msg-bubble a{color:#818cf8;text-decoration:none}
.msg-bubble a:hover{text-decoration:underline}
.msg-bubble img{max-width:100%;border-radius:8px;margin:8px 0}
.msg-bubble video{max-width:100%;border-radius:8px;margin:8px 0}

/* ===== Image Preview Area (粘贴图片预览) ===== */
.image-preview-area{display:flex;flex-wrap:wrap;gap:8px;padding:8px 0;margin-bottom:6px}
.image-preview-item{position:relative;width:64px;height:64px;border-radius:8px;overflow:hidden;border:2px solid rgba(99,102,241,.3);flex-shrink:0}
.image-preview-item img{width:100%;height:100%;object-fit:cover}
.image-preview-remove{position:absolute;top:2px;right:2px;width:20px;height:20px;border-radius:50%;background:rgba(239,68,68,.85);color:#fff;border:none;cursor:pointer;display:flex;align-items:center;justify-content:center;padding:0;transition:background .15s}
.image-preview-remove:hover{background:rgba(239,68,68,1)}

/* ===== Paste Warning (粘贴不支持多模态时的警告) ===== */
.paste-warning{color:#ef4444;font-size:13px;padding:6px 10px;background:rgba(239,68,68,.1);border:1px solid rgba(239,68,68,.25);border-radius:8px;margin-bottom:6px}

/* ===== User Message Images ===== */
.user-msg-img{max-width:200px;max-height:200px;border-radius:8px;margin:4px 0;cursor:pointer;display:block;transition:opacity .15s}
.user-msg-img:hover{opacity:.85}

/* ===== AI Image Wrapper & Toolbar ===== */
.ai-image-wrapper{position:relative;display:inline-block;margin:8px 0;max-width:100%}
.ai-image-wrapper img{display:block}
.ai-image-toolbar{display:flex;gap:4px;margin-top:4px;justify-content:flex-end}
.ai-img-btn{background:rgba(99,102,241,.12);border:1px solid rgba(99,102,241,.2);color:#94a3b8;border-radius:6px;padding:4px 8px;cursor:pointer;display:flex;align-items:center;gap:4px;font-size:11px;transition:all .15s}
.ai-img-btn:hover{background:rgba(99,102,241,.25);color:#818cf8}

/* ===== AI Video Wrapper & Toolbar ===== */
.ai-video-wrapper{position:relative;margin:8px 0;max-width:100%}
.ai-video-wrapper video{display:block;width:100%;border-radius:8px;background:#000}
.ai-video-toolbar{display:flex;gap:4px;margin-top:4px;justify-content:flex-end}
.ai-vid-btn{background:rgba(99,102,241,.12);border:1px solid rgba(99,102,241,.2);color:#94a3b8;border-radius:6px;padding:4px 10px;cursor:pointer;display:flex;align-items:center;gap:4px;font-size:12px;transition:all .15s}
.ai-vid-btn:hover{background:rgba(99,102,241,.25);color:#818cf8}

/* ===== Image Lightbox (图片灯箱) ===== */
.image-lightbox-overlay{position:fixed;inset:0;z-index:9999;background:rgba(0,0,0,.9);display:flex;flex-direction:column;align-items:center;justify-content:center;animation:lbFadeIn .2s ease}
@keyframes lbFadeIn{from{opacity:0}to{opacity:1}}
.image-lightbox-close{position:absolute;top:16px;right:16px;background:rgba(255,255,255,.15);border:none;color:#fff;width:36px;height:36px;border-radius:50%;cursor:pointer;font-size:18px;display:flex;align-items:center;justify-content:center;transition:background .15s;z-index:10}
.image-lightbox-close:hover{background:rgba(255,255,255,.3)}
.image-lightbox-toolbar{position:absolute;top:16px;left:50%;transform:translateX(-50%);display:flex;align-items:center;gap:4px;background:rgba(30,27,75,.85);border:1px solid rgba(99,102,241,.25);border-radius:8px;padding:4px 8px;backdrop-filter:blur(10px);z-index:10}
.lightbox-btn{background:none;border:none;color:#e2e8f0;padding:6px 8px;cursor:pointer;border-radius:6px;display:flex;align-items:center;justify-content:center;font-size:12px;transition:all .15s}
.lightbox-btn:hover{background:rgba(99,102,241,.25);color:#818cf8}
.lightbox-sep{width:1px;height:20px;background:rgba(99,102,241,.25);margin:0 4px}
.image-lightbox-content{flex:1;display:flex;align-items:center;justify-content:center;width:100%;overflow:hidden;padding:60px 20px 20px}
.image-lightbox-img{max-width:90%;max-height:90%;object-fit:contain;transition:transform .15s ease;user-select:none;-webkit-user-drag:none}
.msg-bubble hr{border:none;border-top:1px solid rgba(99,102,241,.15);margin:12px 0}

/* ===== Theme Toggle Button ===== */
.theme-toggle-btn{background:none;border:none;padding:6px;border-radius:8px;cursor:pointer;color:#94a3b8;display:flex;align-items:center;justify-content:center;transition:all .15s}
.theme-toggle-btn:hover{background:rgba(99,102,241,.15);color:#818cf8}

/* ===== Light Theme ===== */
[data-theme="light"] html,[data-theme="light"] body{background:#f8fafc;color:#1e293b}
[data-theme="light"] .sidebar{background:linear-gradient(180deg,#eef2ff 0%,#f8fafc 100%);border-right:1px solid rgba(99,102,241,.15);box-shadow:2px 0 12px rgba(0,0,0,.05)}
[data-theme="light"] .brand{color:#1e293b}
[data-theme="light"] .chat-item{color:#475569}
[data-theme="light"] .chat-item:hover{background:rgba(99,102,241,.08);color:#1e293b}
[data-theme="light"] .chat-item.active{background:rgba(99,102,241,.12);color:#6366f1}
[data-theme="light"] .chat-item .delete-btn{color:#94a3b8}
[data-theme="light"] .chat-item .delete-btn:hover{color:#ef4444;background:rgba(239,68,68,.1)}
[data-theme="light"] .sidebar-footer{border-top:1px solid rgba(99,102,241,.12)}
[data-theme="light"] .user-info{color:#64748b}
[data-theme="light"] .icon-btn{color:#64748b}
[data-theme="light"] .icon-btn:hover{background:rgba(99,102,241,.1);color:#6366f1}
[data-theme="light"] .main-content{background:#f8fafc}
[data-theme="light"] .top-bar{background:rgba(238,242,255,.8);border-bottom:1px solid rgba(99,102,241,.1)}
[data-theme="light"] .chat-title{color:#1e293b}
[data-theme="light"] .msg-wrapper.assistant .msg-bubble{background:#fff;color:#1e293b;border:1px solid rgba(99,102,241,.12);box-shadow:0 1px 3px rgba(0,0,0,.06)}
[data-theme="light"] .msg-time{color:#94a3b8}
[data-theme="light"] .msg-time-top{color:#94a3b8}
[data-theme="light"] .msg-footer{color:#94a3b8}
[data-theme="light"] .msg-model-name{color:#6366f1;background:rgba(99,102,241,.1)}
[data-theme="light"] .msg-token-info{color:#64748b;background:rgba(100,116,139,.06)}
[data-theme="light"] .msg-token-info.msg-token-thinking{color:#059669;background:rgba(16,185,129,.06)}
[data-theme="light"] .msg-token-info.msg-token-total{color:#4f46e5;background:rgba(99,102,241,.06)}
[data-theme="light"] .token-wave span{background:#94a3b8}
[data-theme="light"] .msg-footer .footer-copy-btn{color:#94a3b8}
[data-theme="light"] .msg-footer .footer-copy-btn:hover{color:#6366f1;background:rgba(99,102,241,.1)}
[data-theme="light"] .thinking-block{background:rgba(16,185,129,.06);border:1px solid rgba(16,185,129,.15)}
[data-theme="light"] .thinking-header{color:#059669}
[data-theme="light"] .thinking-body{color:#64748b}
[data-theme="light"] .msg-bubble pre{background:#1e293b!important}
[data-theme="light"] .code-header{background:#334155;color:#94a3b8}
[data-theme="light"] .msg-bubble code:not(pre code){background:rgba(99,102,241,.08);color:#6366f1}
[data-theme="light"] .msg-bubble th{background:rgba(99,102,241,.06);color:#1e293b}
[data-theme="light"] .msg-bubble td{border-color:rgba(99,102,241,.1)}
[data-theme="light"] .msg-bubble .table-wrapper{border:1px solid rgba(99,102,241,.1)}
[data-theme="light"] .msg-bubble .table-wrapper::after{background:linear-gradient(to right,transparent,rgba(248,250,252,.8))}
[data-theme="light"] .msg-bubble .table-wrapper::-webkit-scrollbar-thumb{background:transparent;border-radius:10px;border:2px solid transparent;background-clip:content-box}
[data-theme="light"] .msg-bubble .table-wrapper:hover::-webkit-scrollbar-thumb{background:rgba(99,102,241,.2);border:2px solid transparent;background-clip:content-box}
[data-theme="light"] .msg-bubble .table-wrapper:hover::-webkit-scrollbar-thumb:hover{background:rgba(99,102,241,.4)}
[data-theme="light"] .input-area{background:rgba(238,242,255,.5);border-top:1px solid rgba(99,102,241,.1)}
[data-theme="light"] .model-select-trigger{background:transparent;border:none;color:#64748b}
[data-theme="light"] .model-select-trigger:hover{background:rgba(99,102,241,.08);color:#1e293b}
[data-theme="light"] .model-select-trigger.active{background:rgba(99,102,241,.1);color:#1e293b}
[data-theme="light"] .model-select-value{color:#1e293b}
[data-theme="light"] .model-select-arrow{color:#64748b}
[data-theme="light"] .model-select-dropdown{background:#fff;border:1px solid rgba(99,102,241,.15);box-shadow:0 8px 24px rgba(0,0,0,.1)}
[data-theme="light"] .model-group-header{color:#6366f1;background:rgba(99,102,241,.05);border-bottom:1px solid rgba(99,102,241,.08)}
[data-theme="light"] .model-item{color:#64748b}
[data-theme="light"] .model-item:hover{background:rgba(99,102,241,.06);color:#1e293b}
[data-theme="light"] .model-item.selected{background:rgba(99,102,241,.1);color:#6366f1}
[data-theme="light"] .think-icon-btn{background:transparent;border:none;color:#64748b}
[data-theme="light"] .think-icon-btn:hover{background:rgba(99,102,241,.1);color:#6366f1}
[data-theme="light"] .think-icon-btn.active{background:linear-gradient(135deg,#a5b4fc,#c7d2fe);color:#4338ca;border:none;box-shadow:0 2px 6px rgba(99,102,241,.25)}
[data-theme="light"] .think-icon-btn.active:hover{background:linear-gradient(135deg,#818cf8,#a5b4fc);color:#3730a3;box-shadow:0 3px 10px rgba(99,102,241,.35)}
[data-theme="light"] #userInput{background:#fff;color:#1e293b;border:1.5px solid rgba(99,102,241,.2)}
[data-theme="light"] #userInput:focus{border-color:#6366f1;background:#fff;box-shadow:0 0 0 2px rgba(99,102,241,.1)}
[data-theme="light"] #userInput::placeholder{color:#94a3b8}
[data-theme="light"] .input-footer{color:#94a3b8}
[data-theme="light"] .msg-bubble blockquote{color:#64748b}
[data-theme="light"] .msg-bubble h1,[data-theme="light"] .msg-bubble h2,[data-theme="light"] .msg-bubble h3,[data-theme="light"] .msg-bubble h4{color:#1e293b}
[data-theme="light"] .msg-bubble a{color:#6366f1}
[data-theme="light"] .chat-list::-webkit-scrollbar-thumb{background:transparent;border-radius:10px;border:2px solid transparent;background-clip:content-box}
[data-theme="light"] .chat-list:hover::-webkit-scrollbar-thumb{background:rgba(99,102,241,.2);border:2px solid transparent;background-clip:content-box}
[data-theme="light"] .chat-list:hover::-webkit-scrollbar-thumb:hover{background:rgba(99,102,241,.4)}
[data-theme="light"] .chat-container::-webkit-scrollbar-thumb{background:transparent;border-radius:10px;border:2px solid transparent;background-clip:content-box}
[data-theme="light"] .chat-container:hover::-webkit-scrollbar-thumb{background:rgba(99,102,241,.2);border:2px solid transparent;background-clip:content-box}
[data-theme="light"] .chat-container:hover::-webkit-scrollbar-thumb:hover{background:rgba(99,102,241,.4)}
[data-theme="light"] .model-select-dropdown::-webkit-scrollbar-thumb{background:transparent;border-radius:10px;border:2px solid transparent;background-clip:content-box}
[data-theme="light"] .model-select-dropdown:hover::-webkit-scrollbar-thumb{background:rgba(99,102,241,.2);border:2px solid transparent;background-clip:content-box}
[data-theme="light"] .model-select-dropdown:hover::-webkit-scrollbar-thumb:hover{background:rgba(99,102,241,.4)}
[data-theme="light"] ::-webkit-scrollbar-thumb{background:transparent;border-radius:10px;border:2px solid transparent;background-clip:content-box}
[data-theme="light"] ::-webkit-scrollbar-thumb:hover{background:rgba(99,102,241,.3)}
[data-theme="light"] .layui-form-switch{border-color:#d1d5db!important;background:#e5e7eb!important}
[data-theme="light"] .layui-form-switch i{background:#9ca3af!important}
[data-theme="light"] .layui-layer-title{background:#f8fafc!important;color:#1e293b!important;border-bottom:1px solid rgba(99,102,241,.15)!important}
[data-theme="light"] .layui-layer-content{background:#fff!important;color:#1e293b!important}
[data-theme="light"] .layui-layer-btn{background:#fff!important;border-top:1px solid rgba(99,102,241,.15)!important}
[data-theme="light"] .layui-layer-btn .layui-layer-btn1{background:#f1f5f9!important;border:1px solid #d1d5db!important;color:#475569!important}
[data-theme="light"] .layui-layer-shade {
    backdrop-filter: blur(12px) !important;
    -webkit-backdrop-filter: blur(12px) !important;
    background-color: rgba(0, 0, 0, 0.25) !important;
}
[data-theme="light"] .layui-layer-msg{background:rgba(255,255,255,.9)!important;border:1px solid rgba(99,102,241,.25)!important;border-radius:12px!important;box-shadow:0 16px 48px rgba(0,0,0,.15)!important;backdrop-filter:blur(20px)!important;-webkit-backdrop-filter:blur(20px)!important;z-index:10000!important}
[data-theme="light"] .layui-layer-msg .layui-layer-content{background:transparent!important;color:#1e293b!important}
[data-theme="light"] .theme-toggle-btn{color:#64748b}
[data-theme="light"] .theme-toggle-btn:hover{background:rgba(99,102,241,.1);color:#6366f1}
[data-theme="light"] .chat-search-box{background:#fff;border:1px solid rgba(99,102,241,.15)}
[data-theme="light"] .chat-search-box:focus-within{border-color:rgba(99,102,241,.35)}
[data-theme="light"] .chat-search-input{color:#1e293b}
[data-theme="light"] .chat-search-input::placeholder{color:#94a3b8}
[data-theme="light"] .chat-search-icon{color:#94a3b8}
[data-theme="light"] .chat-search-clear{color:#94a3b8}
[data-theme="light"] .chat-search-clear:hover{color:#475569}
[data-theme="light"] .chat-date-header{color:#94a3b8}
[data-theme="light"] .scroll-nav-btn{background:rgba(255,255,255,.9);border:1px solid rgba(99,102,241,.15);color:#64748b;box-shadow:0 2px 8px rgba(0,0,0,.08)}
[data-theme="light"] .scroll-nav-btn:hover{background:rgba(99,102,241,.1);color:#6366f1;border-color:rgba(99,102,241,.3);box-shadow:0 4px 12px rgba(0,0,0,.1)}

/* Light Theme - Multimodal Features */
[data-theme="light"] .image-preview-item{border-color:rgba(99,102,241,.25)}
[data-theme="light"] .paste-warning{background:rgba(239,68,68,.06);border-color:rgba(239,68,68,.15)}
[data-theme="light"] .ai-img-btn{background:rgba(99,102,241,.08);border-color:rgba(99,102,241,.15);color:#64748b}
[data-theme="light"] .ai-img-btn:hover{background:rgba(99,102,241,.15);color:#6366f1}
[data-theme="light"] .ai-vid-btn{background:rgba(99,102,241,.08);border-color:rgba(99,102,241,.15);color:#64748b}
[data-theme="light"] .ai-vid-btn:hover{background:rgba(99,102,241,.15);color:#6366f1}
[data-theme="light"] .image-lightbox-toolbar{background:rgba(255,255,255,.9);border-color:rgba(99,102,241,.15)}
[data-theme="light"] .lightbox-btn{color:#1e293b}
[data-theme="light"] .lightbox-btn:hover{background:rgba(99,102,241,.1);color:#6366f1}
[data-theme="light"] .lightbox-sep{background:rgba(99,102,241,.15)}

/* ===== User Avatar Menu (用户头像点击菜单) ===== */
.user-avatar-wrap{display:flex;align-items:center;justify-content:center;border-radius:50%;padding:2px;flex-shrink:0}
.user-menu{position:absolute;bottom:calc(100% + 8px);left:0;min-width:160px;background:#1e293b;border:1px solid rgba(99,102,241,.2);border-radius:10px;box-shadow:0 8px 24px rgba(0,0,0,.4);padding:4px;z-index:200;animation:userMenuIn .15s ease}
@keyframes userMenuIn{from{opacity:0;transform:translateY(4px)}to{opacity:1;transform:translateY(0)}}
.user-menu-item{display:flex;align-items:center;gap:8px;padding:8px 12px;font-size:13px;color:#cbd5e1;cursor:pointer;border-radius:6px;transition:all .15s;user-select:none}
.user-menu-item:hover{background:rgba(99,102,241,.15);color:#818cf8}
.user-menu-item-danger{color:#f87171}
.user-menu-item-danger:hover{background:rgba(239,68,68,.12);color:#ef4444}
.user-menu-divider{height:1px;background:rgba(99,102,241,.15);margin:4px 6px}
[data-theme="light"] .user-menu{background:#fff;border:1px solid rgba(99,102,241,.15);box-shadow:0 8px 24px rgba(0,0,0,.1)}
[data-theme="light"] .user-menu-item{color:#475569}
[data-theme="light"] .user-menu-item:hover{background:rgba(99,102,241,.08);color:#6366f1}
[data-theme="light"] .user-menu-item-danger{color:#dc2626}
[data-theme="light"] .user-menu-item-danger:hover{background:rgba(239,68,68,.08);color:#dc2626}
[data-theme="light"] .user-menu-divider{background:rgba(99,102,241,.12)}

/* ===== About Modal ===== */
.about-modal-content{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:24px 16px;text-align:center}
.about-logo{margin-bottom:12px;width:64px;height:64px;border-radius:14px;background:#0f172a;display:flex;align-items:center;justify-content:center;padding:6px;box-shadow:0 4px 12px rgba(0,0,0,.25)}
.about-logo img{width:100%;height:100%;object-fit:contain;display:block}
[data-theme="light"] .about-logo{background:#fff;box-shadow:0 4px 12px rgba(99,102,241,.15)}
.about-title{font-size:18px;font-weight:600;color:#e2e8f0;margin-bottom:8px}
.about-version{font-size:14px;color:#818cf8;background:rgba(99,102,241,.12);padding:4px 12px;border-radius:6px;margin-bottom:12px}
.about-desc{font-size:13px;color:#94a3b8}
[data-theme="light"] .about-title{color:#1e293b}
[data-theme="light"] .about-version{color:#6366f1;background:rgba(99,102,241,.08)}
[data-theme="light"] .about-desc{color:#64748b}

/* ===== Settings Modal (带侧边栏的设置弹窗) ===== */
.settings-modal{display:flex;height:100%;min-height:380px;background:#1e293b}
.settings-sidebar{width:160px;flex-shrink:0;background:linear-gradient(180deg,#1e1b4b 0%,#0f172a 100%);border-right:1px solid rgba(99,102,241,.15);padding:12px 8px;display:flex;flex-direction:column;gap:4px}
.settings-menu-item{display:flex;align-items:center;gap:8px;padding:10px 12px;font-size:13px;color:#cbd5e1;cursor:pointer;border-radius:8px;transition:all .15s;user-select:none}
.settings-menu-item:hover{background:rgba(99,102,241,.12);color:#e2e8f0}
.settings-menu-item.active{background:rgba(99,102,241,.2);color:#818cf8;font-weight:500}
.settings-content{flex:1;padding:24px 28px;overflow-y:auto;background:#1e293b;color:#e2e8f0}
.settings-panel-title{font-size:16px;font-weight:600;color:#e2e8f0;margin-bottom:18px;padding-bottom:10px;border-bottom:1px solid rgba(99,102,241,.15)}
.settings-form-group{margin-bottom:14px}
.settings-form-group label{display:block;font-size:13px;color:#94a3b8;margin-bottom:6px}
.settings-input{width:100%;padding:8px 12px;background:#0f172a;border:1.5px solid rgba(99,102,241,.2);border-radius:8px;color:#e2e8f0;font-size:14px;line-height:1.5;outline:none;transition:border-color .15s}
.settings-input:focus{border-color:#6366f1;box-shadow:0 0 0 2px rgba(99,102,241,.12)}
.settings-input::placeholder{color:#475569}
.settings-form-tip{font-size:12px;color:#94a3b8;margin-top:6px;min-height:14px}
.settings-form-tip.error{color:#ef4444}
.settings-form-actions{margin-top:16px;display:flex;gap:8px;justify-content:flex-end}
.settings-btn{padding:8px 18px;border-radius:8px;font-size:13px;cursor:pointer;border:none;transition:all .15s}
.settings-btn-primary{background:linear-gradient(135deg,#6366f1,#818cf8);color:#fff}
.settings-btn-primary:hover{box-shadow:0 4px 12px rgba(99,102,241,.4);transform:translateY(-1px)}
.settings-form-note{margin-top:12px;font-size:12px;color:#64748b;background:rgba(99,102,241,.06);padding:8px 12px;border-radius:6px;border-left:3px solid rgba(99,102,241,.4)}

/* Layui layer 内嵌设置弹窗：覆盖默认padding */
.layui-layer-content:has(.settings-modal){padding:0!important}
.layui-layer-content .settings-modal{margin:0}

/* Light Theme - Settings Modal */
[data-theme="light"] .settings-modal{background:#fff}
[data-theme="light"] .settings-sidebar{background:linear-gradient(180deg,#eef2ff 0%,#f8fafc 100%);border-right:1px solid rgba(99,102,241,.12)}
[data-theme="light"] .settings-menu-item{color:#475569}
[data-theme="light"] .settings-menu-item:hover{background:rgba(99,102,241,.08);color:#1e293b}
[data-theme="light"] .settings-menu-item.active{background:rgba(99,102,241,.12);color:#6366f1}
[data-theme="light"] .settings-content{background:#fff;color:#1e293b}
[data-theme="light"] .settings-panel-title{color:#1e293b;border-bottom:1px solid rgba(99,102,241,.12)}
[data-theme="light"] .settings-form-group label{color:#64748b}
[data-theme="light"] .settings-input{background:#f8fafc;border:1.5px solid rgba(99,102,241,.18);color:#1e293b}
[data-theme="light"] .settings-input:focus{border-color:#6366f1;box-shadow:0 0 0 2px rgba(99,102,241,.1)}
[data-theme="light"] .settings-input::placeholder{color:#94a3b8}
[data-theme="light"] .settings-form-tip{color:#64748b}
[data-theme="light"] .settings-form-note{color:#64748b;background:rgba(99,102,241,.04)}

/* Mobile responsive for about modal */
@media(max-width:768px){
    .about-modal-content{padding:18px 12px}
    .about-logo{width:52px;height:52px;border-radius:12px;margin-bottom:10px}
    .about-title{font-size:16px;margin-bottom:6px}
    .about-version{font-size:13px;padding:3px 10px;margin-bottom:10px}
    .about-desc{font-size:12px}
}

/* Mobile responsive for settings modal */
@media(max-width:768px){
    .settings-modal{flex-direction:column;min-height:auto;height:100%}
    .settings-sidebar{width:100%;flex-direction:row;overflow-x:auto;border-right:none;border-bottom:1px solid rgba(99,102,241,.15);padding:8px;flex-shrink:0;-webkit-overflow-scrolling:touch}
    .settings-menu-item{white-space:nowrap;flex-shrink:0;padding:8px 10px;font-size:12px}
    .settings-content{padding:16px;flex:1;overflow-y:auto;-webkit-overflow-scrolling:touch;min-height:0}
    .settings-panel-title{font-size:15px;margin-bottom:14px}
    .settings-form-group{margin-bottom:12px}
    .settings-form-group label{font-size:12px;margin-bottom:5px}
    .settings-input{padding:7px 10px;font-size:13px}
    .settings-form-actions{margin-top:14px}
    .settings-btn{padding:7px 16px;font-size:12px}
    .settings-form-note{font-size:11px;padding:6px 10px;margin-top:10px}
}