body {
    background-color: #f8fafc;
    min-height: 100vh;
    color: #1f2937;
    font-family: 'Inter', 'Arial', sans-serif;
    margin: 0;
    padding: 0;
    overflow-y: auto; /* 纭繚绾靛悜婊氬姩鍙敤 */
    overflow: auto !important;
}

.container {
    
        margin: 0 auto; /* 灞呬腑 */
        max-width: 1200px; /* 璁剧疆鏈€澶у搴︼紝闃叉鍐呭杩囧 */
    display: flex;
    width: 100%;
    position: relative;
}

.main-content {
    width: 100%;
    padding: 2rem;
    transition: padding-right 0.3s ease-in-out;
    min-height: 100vh;
    overflow-y: auto; /* 纭繚 main-content 鍐呭鍙粴鍔� */
}

/* 绉婚櫎 padding-right 璋冩暣锛屾敼鐢ㄦ洿鐏垫椿鐨勫竷灞€ */
@media (min-width: 1024px) {
    .main-content.chat-open {
        padding-right: 2rem; /* 鎭㈠榛樿 padding */
    }
    .main-content.preview-open {
        padding-right: 2rem;
    }
    .main-content.chat-open.preview-open {
        padding-right: 2rem;
    }
}

.card {
    background: #ffffff;
    border-radius: 0.75rem;
    border: 1px solid #e5e7eb;
    box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.05), 0 1px 2px 0 rgba(0, 0, 0, 0.03);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    overflow: hidden;
}

.card:hover {
    transform: translateY(-3px);
    box-shadow: 0 4px 10px 0 rgba(0, 0, 0, 0.07), 0 2px 4px 0 rgba(0, 0, 0, 0.04);
}

.highlight {
    color: #4f46e5;
    font-weight: 600;
}

.highlight:hover {
    color: #4338ca;
    text-decoration: underline;
}

.search-box-container {
    background: #ffffff;
    border: 1px solid #d1d5db;
    border-radius: 0.5rem;
    padding: 0.5rem;
    box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.03);
    transition: box-shadow 0.3s ease, border-color 0.3s ease;
    display: flex;
    align-items: center;
    width: 100%;
}

.search-box-container:focus-within {
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.2);
    border-color: #4f46e5;
}

.search-input {
    flex-grow: 1;
    padding: 0.5rem 0.75rem;
    border: none;
    background: transparent;
    color: #1f2937;
    font-size: 1rem;
    outline: none;
}

.suggestions {
    background: #ffffff;
    border: 1px solid #e5e7eb;
    border-top: none;
    border-radius: 0 0 0.5rem 0.5rem;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    max-height: 250px;
    overflow-y: auto;
    z-index: 1000;
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.1);
    margin-top: -1px;
}

.suggestion-item {
    padding: 0.75rem 1rem;
    cursor: pointer;
    transition: background-color 0.2s ease;
    color: #374151;
}

.suggestion-item:hover {
    background-color: #f3f4f6;
}

.suggestion-item.selected {
    background-color: #e5e7eb;
    color: #1f2937;
}

.chat-panel {
    position: fixed;
    top: 0;
    right: 0;
    width: 650px;
    height: 100vh;
    background: #ffffff;
    border-left: 1px solid #e5e7eb;
    box-shadow: -2px 0 10px rgba(0, 0, 0, 0.05);
    transform: translateX(100%);
    transition: transform 0.3s ease-in-out;
    z-index: 1100;
    display: flex;
    flex-direction: column;
}

.preview-panel {
    position: fixed;
    top: 0;
    right: 0;
    width: 850px;
    height: 100vh;
    background: #ffffff;
    border-left: 1px solid #e5e7eb;
    box-shadow: -2px 0 10px rgba(0, 0, 0, 0.05);
    transform: translateX(100%);
    transition: transform 0.3s ease-in-out;
    z-index: 1050;
    display: flex;
    flex-direction: column;
}

.chat-panel {
    z-index: 5100;
}

.preview-panel {
    z-index: 5100;
}

.chat-panel.open {
    transform: translateX(0);
}

.preview-panel.open {
    transform: translateX(0);
}

.chat-panel.open + .preview-panel.open {
    transform: translateX(-650px);
}

.panel-header {
    padding: 1rem 1.5rem;
    border-bottom: 1px solid #e5e7eb;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-shrink: 0;
}

.panel-close-button {
    background: none;
    border: none;
    font-size: 1.5rem;
    line-height: 1;
    color: #6b7280;
    cursor: pointer;
    padding: 0.25rem;
}

.panel-close-button:hover {
    color: #1f2937;
}

.panel-content {
    flex-grow: 1;
    overflow-y: auto;
    padding: 1.5rem;
    background-color: #f9fafb;
}

.iframe-container {
    width: 100%;
    height: 100%;
    border: 1px solid #e5e7eb;
    border-radius: 0.5rem;
}

.iframe-container iframe {
    width: 100%;
    height: 100%;
    border: none;
}

.error-link {
    color: #4f46e5;
    text-decoration: underline;
    transition: color 0.2s ease;
}

.error-link:hover {
    color: #4338ca;
}

.chat-input-area {
    padding: 0.75rem 1.5rem; /* 鍑忓皯椤堕儴 padding */
    background: #ffffff;
    border-top: 1px solid #e5e7eb;
    flex-shrink: 0;
}

.chat-input-wrapper {
    display: flex;
    align-items: center;
    background: #f3f4f6;
    border: 1px solid #d1d5db;
    border-radius: 0.5rem;
    padding: 0.25rem 0.5rem;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.chat-input-wrapper:focus-within {
    border-color: #4f46e5;
    box-shadow: 0 0 0 2px rgba(79, 70, 229, 0.15);
}

.chat-input {
    flex-grow: 1;
    padding: 0.25rem 0.5rem; /* 鍑忓皯 padding */
    border: none;
    background: transparent;
    outline: none;
    color: #1f2937;
    font-size: 0.95rem;
    line-height: 1.25; /* 璋冩暣琛岄珮锛屽噺灏戠┖鐧� */
    resize: none; /* 闃叉 textarea 璋冩暣澶у皬 */
    overflow: hidden; /* 闃叉澶氫綑婊氬姩鏉� */
}

.thumbnail {
    width: 100px;
    height: 60px;
    object-fit: cover;
    border-radius: 0.5rem;
    flex-shrink: 0;
}

.btn {
    background-color: #4f46e5;
    color: #ffffff;
    font-weight: 500;
    padding: 0.6rem 1rem;
    border-radius: 0.375rem;
    transition: background-color 0.2s ease, box-shadow 0.2s ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    line-height: 1.25;
}

.btn:hover {
    background-color: #4338ca;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.btn-preview {
    background-color: #10b981;
    margin-left: 0.5rem;
}

.btn-preview:hover {
    background-color: #059669;
}

.btn-sm {
    padding: 0.4rem 0.8rem;
    font-size: 0.875rem;
}

.btn-send {
    padding: 0.5rem 0.8rem;
    margin-left: 0.5rem;
}

.message {
    margin-bottom: 1rem;
    display: flex;
    animation: fadeIn 0.4s ease-out;
}

.message-bubble {
    display: inline-block;
    padding: 0.75rem 1rem;
    border-radius: 1rem;
    max-width: 85%;
    line-height: 1.5;
}

.message.user {
    justify-content: flex-end;
}

.message.user .message-bubble {
    background-color: #e0e7ff;
    color: #3730a3;
    border-bottom-right-radius: 0.25rem;
}

.message.ai .message-bubble {
    background-color: #e5e7eb;
    color: #1f2937;
    border-bottom-left-radius: 0.25rem;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

.line-clamp-2 {
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* 鎵嬪姩娣诲姞蹇呰鐨� Tailwind 鏍峰紡锛堝鏋� Tailwind CSS 鍔犺浇澶辫触锛� */
.text-blue-500 {
    color: #3b82f6;
}

.underline {
    text-decoration: underline;
}

.border-gray-400 {
    border-color: #9ca3af;
}

.border-gray-300 {
    border-color: #d1d5db;
}

.px-2 {
    padding-left: 0.5rem;
    padding-right: 0.5rem;
}

.py-1 {
    padding-top: 0.25rem;
    padding-bottom: 0.25rem;
}

.bg-gray-100 {
    background-color: #f3f4f6;
}

.my-2 {
    margin-top: 0.5rem;
    margin-bottom: 0.5rem;
}

.list-decimal {
    list-style-type: decimal;
}

.list-disc {
    list-style-type: disc;
}

.ml-5 {
    margin-left: 1.25rem;
}

.my-1 {
    margin-top: 0.25rem;
    margin-bottom: 0.25rem;
}

.text-5xl { font-size: 1rem; }
.text-4xl { font-size: 0.9rem; }
.text-3xl { font-size: 0.8rem; }
.text-2xl { font-size: 0.7rem; }
.text-xl { font-size: 0.6rem; }
.font-bold { font-weight: 700; }
.mt-2 { margin-top: 0.5rem; }
.mb-1 { margin-bottom: 0.25rem; }
.searchTitle{
    
    font-size: 1.875rem; /* Tailwind 鐨� text-3xl */
    line-height: 2.25rem;
    @media (min-width: 640px) {
        font-size: 2.25rem; /* text-4xl */
    }
}