@import url('https://fonts.googleapis.com/css2?family=Orbitron:wght@400;500;600;700;900&family=Rajdhani:wght@300;400;500;600;700&display=swap');

:root {
    /* 深色科技配色 */
    --black-base: #0c0d0d;
    --black-mid: #151515;
    --black-light: #202222;
    --gray-dark: #2c2c2c;
    --gray-mid: #444444;
    --gray-light: #888888;
    --white-pure: #ffffff;
    --white-soft: #c7c7c7;
    
    /* 光效顏色 */
    --glow-primary: #00ffff;
    --glow-secondary: #ff00ff;
    --glow-accent: #ffff00;
    --glow-danger: #ff0040;
    --glow-success: #00ff88;
    
    /* 間距 */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2.5rem;
    
    /* 字體 */
    --font-main: 'Rajdhani', sans-serif;
    --font-tech: 'Orbitron', monospace;
    
    /* 舊變數映射（保持相容性） */
    --bg-main: var(--black-base);
    --bg-sidebar: var(--black-mid);
    --bg-content: var(--black-light);
    --primary-color: var(--glow-primary);
    --secondary-color: var(--glow-secondary);
    --text-primary: var(--white-soft);
    --text-secondary: var(--gray-light);
    --border-color: var(--gray-dark);
    --success-color: var(--glow-success);
    --error-color: var(--glow-danger);
    --selection-bg: rgba(0, 255, 255, 0.2);
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

/* 主體背景 */
body {
    font-family: var(--font-main);
    background: var(--black-base);
    color: var(--white-soft);
    overflow: hidden;
    position: relative;
}

/* 網格背景 */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(var(--gray-dark) 1px, transparent 1px),
        linear-gradient(90deg, var(--gray-dark) 1px, transparent 1px);
    background-size: 50px 50px;
    opacity: 0.2;
    z-index: 0;
}

/* 動態光暈背景 */
body::after {
    content: '';
    position: fixed;
    top: 50%;
    left: 50%;
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, var(--glow-primary) 0%, transparent 70%);
    opacity: 0.05;
    transform: translate(-50%, -50%);
    animation: pulseGlow 8s ease-in-out infinite;
    z-index: 0;
}

@keyframes pulseGlow {
    0%, 100% { transform: translate(-50%, -50%) scale(1); opacity: 0.05; }
    50% { transform: translate(-50%, -50%) scale(1.2); opacity: 0.08; }
}

#app-container {
    display: flex; 
    height: 100vh;
    position: relative;
    z-index: 1;
}

/* --- Sidebar --- */
#sidebar {
    width: 320px;      
    flex-shrink: 0;
    background: radial-gradient(ellipse at top, var(--gray-dark), var(--black-base));
    display: flex;
    flex-direction: column;
    border-right: 1px solid var(--gray-dark);
    position: relative;
    overflow: hidden;
}

/* 掃描線效果 */
#sidebar::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--glow-primary), transparent);
    animation: scanline 3s linear infinite;
    z-index: 2;
}

@keyframes scanline {
    0% { transform: translateY(-100vh); }
    100% { transform: translateY(100vh); }
}

.sidebar-header {
    padding: var(--space-lg);
    border-bottom: 1px solid var(--gray-dark);
    position: relative;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    margin-bottom: var(--space-md);
}

.logo-icon { 
    font-size: 2rem; 
    text-shadow: 0 0 20px var(--glow-primary);
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.6; }
}

.logo h1 {
    font-family: var(--font-tech);
    font-size: 1.5rem;
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: 3px;
    background: linear-gradient(45deg, var(--glow-primary), var(--glow-secondary), var(--glow-primary));
    background-size: 200% 200%;
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: gradientShift 3s ease infinite;
}

@keyframes gradientShift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

.status-indicator {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    font-family: var(--font-tech);
    font-size: 0.75rem;
    padding: var(--space-xs) var(--space-md);
    border-radius: 2px;
    border: 1px solid var(--gray-dark);
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.status-indicator::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.1), transparent);
    animation: shimmer 4s infinite;
}

@keyframes shimmer {
    100% { left: 100%; }
}

.status-indicator .dot { 
    width: 8px; 
    height: 8px; 
    border-radius: 2px; 
    transition: all 0.3s ease; 
}

.status-indicator.disconnected { 
    background: rgba(255, 0, 64, 0.1);
    border-color: var(--glow-danger);
    color: var(--glow-danger);
}

.status-indicator.disconnected .dot { 
    background: var(--glow-danger);
    box-shadow: 0 0 10px var(--glow-danger);
}

.status-indicator.connected { 
    background: rgba(0, 255, 136, 0.1);
    border-color: var(--glow-success);
    color: var(--glow-success);
}

.status-indicator.connected .dot { 
    background: var(--glow-success);
    box-shadow: 0 0 10px var(--glow-success);
    animation: blink 2s infinite;
}

@keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.3; }
}

.report-list-container {
    padding: var(--space-lg);
    flex-grow: 1;
    overflow-y: auto;
}

.report-list-container h2 {
    font-family: var(--font-tech);
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--glow-primary);
    margin-bottom: var(--space-lg);
    text-transform: uppercase;
    letter-spacing: 2px;
    position: relative;
    padding-left: 20px;
}

.report-list-container h2::before {
    content: '▶';
    position: absolute;
    left: 0;
    color: var(--glow-primary);
    animation: blink 2s infinite;
}

#report-list {
    list-style: none;
}

#report-list li {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-md);
    margin-bottom: var(--space-sm);
    background: linear-gradient(145deg, var(--black-mid), var(--black-light));
    border: 1px solid var(--gray-dark);
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

#report-list li::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--glow-primary), transparent);
    transform: translateX(-100%);
    transition: transform 0.6s;
}

#report-list li:hover::before {
    transform: translateX(100%);
}

#report-list li:hover { 
    border-color: var(--glow-primary);
    box-shadow: 0 0 20px rgba(0, 255, 255, 0.3);
    transform: translateX(5px);
}

#report-list li.active {
    background: linear-gradient(145deg, var(--gray-dark), var(--black-mid));
    border-color: var(--glow-primary);
    color: var(--glow-primary);
    box-shadow: 
        inset 0 0 20px rgba(0, 255, 255, 0.2),
        0 0 30px rgba(0, 255, 255, 0.3);
}

#report-list li.pending {
    border-color: var(--glow-secondary);
    box-shadow: 0 0 10px rgba(255, 0, 255, 0.2);
}

.report-name {
    flex-grow: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    margin-right: var(--space-sm);
    font-family: var(--font-tech);
    font-size: 0.9rem;
    letter-spacing: 1px;
}

.download-icon {
    flex-shrink: 0;
    color: var(--gray-light);
    padding: var(--space-xs);
    border-radius: 2px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    transition: all 0.2s ease;
}

.download-icon:hover {
    color: var(--glow-secondary);
    text-shadow: 0 0 10px var(--glow-secondary);
    transform: scale(1.2);
}

#report-list li.active .download-icon { 
    color: var(--white-pure); 
}

.loader {
    width: 40px;
    height: 40px;
    border: 3px solid var(--gray-dark);
    border-top-color: var(--glow-primary);
    border-right-color: var(--glow-secondary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: var(--space-xl) auto;
    box-shadow: 0 0 20px rgba(0, 255, 255, 0.3);
}

@keyframes spin { 
    to { transform: rotate(360deg); } 
}

#report-list.is-loading {
    opacity: 0.3;
    cursor: wait;
    pointer-events: none;
}

/* --- Main Content --- */
#main-content {
    flex-grow: 1; 
    background: radial-gradient(circle at center, var(--black-light), var(--black-base));
    display: flex;
    flex-direction: column;
    overflow-y: auto;
    position: relative;
}

#welcome-screen {
    flex-grow: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
    color: var(--gray-light);
}

.welcome-content {
    position: relative;
    z-index: 1;
}


@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.welcome-content h2 {
    font-family: var(--font-tech);
    font-size: 2rem;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--white-soft);

    display: inline-block;
    overflow: hidden;
    white-space: nowrap;
    border-right: 3px solid var(--white-pure);

    text-shadow:
        0 0 5px var(--white-pure),
        0 0 10px var(--glow-primary);

    animation:
        typing-loop 4s steps(13, end) infinite,
        blink-caret .75s step-end infinite;
}

@keyframes typing-loop {
    from {
        width: 0;
    }
    75% {
        width: 100%;
    }
    to {
        width: 100%;
    }
}

@keyframes blink-caret {
    from, to { border-color: transparent; }
    50% { border-color: var(--white-pure); } 
}

.welcome-content p {
    font-family: var(--font-tech);
    font-size: 0.9rem;
    letter-spacing: 1px;
    color: var(--gray-light);
}

#report-view {
    display: flex;
    flex-direction: column;
    height: 100%;
}

.report-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-lg) var(--space-xl);
    border-bottom: 1px solid var(--gray-dark);
    flex-shrink: 0;
    background: linear-gradient(180deg, var(--black-mid), var(--black-base));
    position: relative;
}

.report-header::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    width: 100%;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--glow-primary), transparent);
    animation: scanline 4s linear infinite;
}

.report-header h2 { 
    font-family: var(--font-tech);
    font-size: 1.25rem; 
    flex-grow: 1;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--glow-primary);
    text-shadow: 0 0 10px rgba(0, 255, 255, 0.3);
}

.actions {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.save-status {
    font-family: var(--font-tech);
    font-size: 0.85rem;
    color: var(--gray-light);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.save-status span { 
    margin-right: var(--space-sm);
    color: var(--glow-success);
}

.save-status a {
    color: var(--glow-secondary);
    text-decoration: none;
    font-weight: 600;
    margin: 0 var(--space-xs);
    transition: all 0.2s ease;
}

.save-status a:hover { 
    text-shadow: 0 0 10px var(--glow-secondary);
}

#report-display-container {
    flex-grow: 1;
    overflow-y: auto;
    padding: var(--space-xl) 3rem;
}

#report-display {
    max-width: 900px;
    margin: 0 auto;
    line-height: 1.8;
    font-family: var(--font-main);
}

#report-display:focus { 
    outline: none; 
}

#report-display p, 
#report-display h1, 
#report-display h2, 
#report-display h3 { 
    margin-bottom: 1em; 
}

#report-display ::selection { 
    background: var(--selection-bg);
    color: var(--white-pure);
}

/* 報告內容樣式 */
#report-display h1,
#report-display h2,
#report-display h3,
#report-display h4 {
    font-family: var(--font-tech);
    color: var(--white-pure);
    margin-top: 1.5em;
    margin-bottom: 0.8em;
    line-height: 1.4;
    text-transform: uppercase;
    letter-spacing: 1px;
}

#report-display h1 {
    font-size: 1.8rem;
    color: var(--white-pure);
    border-bottom: 1px solid var(--gray-dark);
    padding-bottom: var(--space-md);
    text-shadow: 0 0 10px rgba(255, 255, 255, 0.3);
}

#report-display h2 {
    font-size: 1.4rem;
    color: var(--glow-primary);
}

#report-display h3 {
    font-size: 1.2rem;
    color: var(--glow-secondary);
}

#report-display strong {
    font-weight: 700;
    color: var(--white-pure);
}

#report-display em {
    font-style: italic;
    color: var(--glow-accent);
}

#report-display ul,
#report-display ol {
    margin-bottom: 1.2em;
    padding-left: 2em;
    color: var(--gray-light);
}

#report-display li {
    margin-bottom: 0.5em;
}

#report-display table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 1.5em;
    font-size: 0.9rem;
    border: 1px solid var(--gray-dark);
}

#report-display th,
#report-display td {
    border: 1px solid var(--gray-dark);
    padding: var(--space-md);
    text-align: left;
}

#report-display th {
    background: linear-gradient(145deg, var(--black-mid), var(--black-light));
    font-weight: 700;
    color: var(--glow-primary);
    font-family: var(--font-tech);
    text-transform: uppercase;
    letter-spacing: 1px;
}

#report-display tr:nth-child(even) {
    background: rgba(0, 255, 255, 0.05);
}

#report-display img {
    max-width: 100%;
    height: auto;
    border-radius: 4px;
    margin: 1em 0;
    border: 1px solid var(--glow-primary);
    box-shadow: 0 0 20px rgba(0, 255, 255, 0.2);
    background-color: #fff;
}

/* --- Refine Panel --- */
#refine-panel {
    width: 400px;      
    flex-shrink: 0;  
    background: radial-gradient(ellipse at bottom, var(--gray-dark), var(--black-base));
    border-left: 1px solid var(--gray-dark);
    display: flex;
    flex-direction: column;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

/* 光線效果 */
#refine-panel::before {
    content: '';
    position: absolute;
    top: 50%;
    right: 0;
    width: 200px;
    height: 200px;
    background: radial-gradient(circle, var(--glow-secondary) 0%, transparent 70%);
    opacity: 0.03;
    animation: pulseGlow 10s ease-in-out infinite;
    pointer-events: none;
}

#refine-panel.hidden { 
    display: none; 
}

.refine-header {
    padding: var(--space-lg);
    border-bottom: 1px solid var(--gray-dark);
    flex-shrink: 0;
    font-family: var(--font-tech);
    font-size: 1rem;
    text-align: center;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--glow-secondary);
    text-shadow: 0 0 15px rgba(255, 0, 255, 0.3);
    position: relative;
}

.refine-header h3 {
    font-weight: 700;
}

#selection-info {
    padding: var(--space-lg);
    border-bottom: 1px solid var(--gray-dark);
    flex-shrink: 0;
}

#selection-info h4 { 
    font-family: var(--font-tech);
    font-size: 0.75rem; 
    margin-bottom: var(--space-md); 
    color: var(--glow-primary);
    text-transform: uppercase;
    letter-spacing: 2px;
    position: relative;
    padding-left: 20px;
}

#selection-info h4::before {
    content: '▶';
    position: absolute;
    left: 0;
    animation: blink 2s infinite;
}

.text-preview {
    background: linear-gradient(145deg, var(--black-base), var(--black-mid));
    border: 1px solid var(--gray-dark);
    border-radius: 4px;
    padding: var(--space-md);
    max-height: 100px;
    overflow-y: auto;
    font-size: 0.85rem;
    color: var(--gray-light);
    transition: all 0.3s ease;
    font-family: var(--font-main);
}

.text-preview.active { 
    color: var(--white-soft);
    border-color: var(--glow-primary);
    box-shadow: 
        inset 0 0 10px rgba(0, 255, 255, 0.1),
        0 0 15px rgba(0, 255, 255, 0.2);
}

.text-preview .placeholder {
    color: var(--gray-mid);
    font-style: italic;
    font-family: var(--font-tech);
    font-size: 0.8rem;
}

#chat-container {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

#chat-history {
    flex-grow: 1;
    padding: var(--space-lg);
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

.chat-bubble {
    padding: var(--space-md);
    border-radius: 4px;
    max-width: 85%;
    line-height: 1.6;
    font-size: 0.9rem;
    position: relative;
    animation: slideIn 0.3s ease;
}

@keyframes slideIn {
    from { 
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.chat-bubble.user {
    background: linear-gradient(135deg, var(--glow-primary), var(--glow-secondary));
    color: var(--black-base);
    align-self: flex-end;
    font-weight: 500;
    box-shadow: 0 5px 15px rgba(0, 255, 255, 0.3);
}

.chat-bubble.ai {
    background: linear-gradient(145deg, var(--black-mid), var(--black-light));
    border: 1px solid var(--gray-dark);
    align-self: flex-start;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.5);
}

.chat-bubble .refined-content {
    background: var(--black-base);
    padding: var(--space-md);
    border-radius: 4px;
    margin-top: var(--space-sm);
    border: 1px solid var(--glow-secondary);
    color: var(--white-soft);
    font-family: var(--font-tech);
    letter-spacing: 0.5px;
}

.chat-bubble .apply-btn {
    margin-top: var(--space-md);
    background: linear-gradient(145deg, var(--glow-secondary), var(--glow-primary));
    color: var(--black-base);
    border: none;
    font-weight: 600;
}

.chat-bubble .apply-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(255, 0, 255, 0.4);
}

.loading-bubble .loader {
    width: 30px;
    height: 30px;
    margin: 0;
}

#chat-input-area {
    padding: var(--space-lg);
    border-top: 1px solid var(--gray-dark);
    display: flex;
    gap: var(--space-sm);
    flex-shrink: 0;
    background: linear-gradient(180deg, var(--black-base), var(--black-mid));
}

#refine-instruction {
    flex-grow: 1;
    background: var(--black-mid);
    border: 1px solid var(--gray-dark);
    border-radius: 4px;
    padding: var(--space-md);
    color: var(--white-soft);
    resize: none;
    font-family: var(--font-main);
    font-size: 0.95rem;
    transition: all 0.3s ease;
}

#refine-instruction:focus {
    outline: none;
    border-color: var(--glow-primary);
    box-shadow: 
        inset 0 0 10px rgba(0, 255, 255, 0.1),
        0 0 15px rgba(0, 255, 255, 0.2);
    background: linear-gradient(145deg, var(--black-base), var(--black-mid));
}

#refine-instruction:disabled, 
#send-instruction-btn:disabled {
    opacity: 0.3;
    cursor: not-allowed;
}

/* --- 按鈕設計 --- */
.btn {
    padding: var(--space-md) var(--space-xl);
    border: 1px solid var(--gray-dark);
    border-radius: 4px;
    font-family: var(--font-tech);
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: 0.9rem;
    position: relative;
    overflow: hidden;
    text-transform: uppercase;
    letter-spacing: 1px;
    background: linear-gradient(145deg, var(--black-mid), var(--black-light));
    color: var(--white-soft);
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: radial-gradient(circle, rgba(0, 255, 255, 0.3), transparent);
    transition: all 0.5s ease;
    transform: translate(-50%, -50%);
}

.btn:hover::before {
    width: 300px;
    height: 300px;
}

.btn .icon { 
    font-size: 1.1rem; 
}

.btn-primary { 
    border-color: var(--glow-primary);
    color: var(--glow-primary);
    box-shadow: 0 0 20px rgba(0, 255, 255, 0.2);
}

.btn-primary:hover { 
    transform: translateY(-2px);
    box-shadow: 
        0 5px 30px rgba(0, 255, 255, 0.4),
        inset 0 0 20px rgba(0, 255, 255, 0.2);
    text-shadow: 0 0 10px var(--glow-primary);
}

#send-instruction-btn {
    background: linear-gradient(145deg, var(--glow-secondary), var(--glow-primary));
    color: var(--black-base);
    border-color: var(--glow-secondary);
    padding: var(--space-md);
    flex-shrink: 0;
    font-weight: 700;
}

#send-instruction-btn:hover { 
    transform: scale(1.1);
    box-shadow: 0 0 25px rgba(255, 0, 255, 0.5);
}

.hidden { 
    display: none !important; 
}


/* 下載動畫 */
.download-icon.is-downloading {
    animation: rotate 1s linear infinite;
    color: var(--glow-accent);
}

@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* 滾動條樣式 */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: var(--black-mid);
    border: 1px solid var(--gray-dark);
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(var(--gray-dark), var(--gray-mid));
    border: 1px solid var(--gray-dark);
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(var(--gray-mid), var(--gray-light));
}

/* 響應式設計 */
@media (max-width: 1200px) {
    #sidebar { width: 280px; }
    #refine-panel { width: 350px; }
}

@media (max-width: 968px) {
    #sidebar { width: 250px; }
    #refine-panel { width: 300px; }
    .report-header h2 { font-size: 1.1rem; }
}

@media (max-width: 768px) {
    #app-container {
        flex-direction: column;
    }
    
    #sidebar,
    #refine-panel {
        width: 100%;
        height: auto;
    }
    
    #sidebar {
        order: 1;
        max-height: 200px;
    }
    
    #main-content {
        order: 2;
        min-height: 400px;
    }
    
    #refine-panel {
        order: 3;
        border-left: none;
        border-top: 1px solid var(--gray-dark);
    }
}

/* 快捷鍵提示樣式 */
.shortcut-hint {
    margin-top: 2rem;
    font-size: 0.85rem;
    color: var(--gray-mid);
    font-family: var(--font-tech);
}

.shortcut-hint kbd {
    display: inline-block;
    padding: 0.2rem 0.5rem;
    background: var(--black-mid);
    border: 1px solid var(--gray-dark);
    border-radius: 3px;
    font-family: var(--font-tech);
    font-size: 0.8rem;
    color: var(--glow-primary);
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.3);
    margin: 0 0.2rem;
}

/* 反饋按鈕容器 */
.action-buttons {
    display: flex;
    gap: var(--space-sm);
    margin-top: var(--space-md);
    flex-wrap: wrap;
}

/* 反饋按鈕基礎樣式 */
.feedback-btn {
    padding: var(--space-sm) var(--space-md);
    font-size: 1.2rem;
    min-width: 50px;
    background: linear-gradient(145deg, var(--black-mid), var(--black-light));
    border: 1px solid var(--gray-dark);
    transition: all 0.3s ease;
}

/* 好評按鈕 */
.feedback-good:hover:not(:disabled) {
    border-color: var(--glow-success);
    background: linear-gradient(145deg, var(--glow-success), #00cc70);
    transform: scale(1.1);
    box-shadow: 0 0 20px rgba(0, 255, 136, 0.4);
}

/* 差評按鈕 */
.feedback-bad:hover:not(:disabled) {
    border-color: var(--glow-danger);
    background: linear-gradient(145deg, var(--glow-danger), #cc0033);
    transform: scale(1.1);
    box-shadow: 0 0 20px rgba(255, 0, 64, 0.4);
}

/* 已禁用的反饋按鈕 */
.feedback-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    filter: grayscale(50%);
}

/* 應用按鈕增強樣式 */
.apply-btn {
    flex-grow: 1;
}

/* 反饋說明文字 */
.feedback-note {
    margin-top: var(--space-sm);
    padding: var(--space-sm) var(--space-md);
    background: rgba(255, 0, 64, 0.1);
    border-left: 3px solid var(--glow-danger);
    border-radius: 2px;
}

.feedback-note small {
    color: var(--glow-danger);
    font-family: var(--font-tech);
    font-size: 0.75rem;
    line-height: 1.4;
}

/* ==================== 修改歷史面板樣式 ==================== */

/* 模態框背景 */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(5px);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.modal.hidden {
    display: none;
}

/* 模態框內容 */
.modal-content {
    background: linear-gradient(145deg, var(--black-mid), var(--black-base));
    border: 2px solid var(--glow-primary);
    border-radius: 8px;
    width: 90%;
    max-width: 1200px;
    max-height: 85vh;
    display: flex;
    flex-direction: column;
    box-shadow: 
        0 0 50px rgba(0, 255, 255, 0.3),
        inset 0 0 30px rgba(0, 255, 255, 0.05);
    animation: slideUp 0.4s ease;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 模態框標題 */
.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-lg) var(--space-xl);
    border-bottom: 1px solid var(--gray-dark);
    background: linear-gradient(180deg, var(--black-light), var(--black-mid));
}

.modal-header h2 {
    font-family: var(--font-tech);
    font-size: 1.5rem;
    color: var(--glow-primary);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin: 0;
    text-shadow: 0 0 15px rgba(0, 255, 255, 0.5);
}

.close-btn {
    background: none;
    border: none;
    color: var(--gray-light);
    font-size: 2rem;
    cursor: pointer;
    transition: all 0.3s ease;
    line-height: 1;
    padding: 0;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 4px;
}

.close-btn:hover {
    color: var(--glow-danger);
    background: rgba(255, 0, 64, 0.1);
    transform: rotate(90deg);
}

/* 模態框主體 */
.modal-body {
    padding: var(--space-xl);
    overflow-y: auto;
    flex-grow: 1;
}

/* 歷史統計 */
.history-stats {
    background: linear-gradient(135deg, var(--black-base), var(--gray-dark));
    border: 1px solid var(--gray-dark);
    border-radius: 6px;
    padding: var(--space-lg);
    margin-bottom: var(--space-xl);
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-lg);
}

.stat-item {
    text-align: center;
    padding: var(--space-md);
    background: rgba(0, 255, 255, 0.05);
    border-radius: 4px;
    border: 1px solid rgba(0, 255, 255, 0.2);
}

.stat-value {
    font-family: var(--font-tech);
    font-size: 2rem;
    color: var(--glow-primary);
    font-weight: 700;
    display: block;
    margin-bottom: var(--space-sm);
    text-shadow: 0 0 10px rgba(0, 255, 255, 0.5);
}

.stat-label {
    font-family: var(--font-tech);
    font-size: 0.75rem;
    color: var(--gray-light);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* 歷史記錄列表 */
#history-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-xl);
}

/* 段落組 */
.history-segment {
    background: linear-gradient(145deg, var(--black-light), var(--black-mid));
    border: 1px solid var(--gray-dark);
    border-radius: 6px;
    padding: var(--space-lg);
    transition: all 0.3s ease;
}

.history-segment:hover {
    border-color: var(--glow-secondary);
    box-shadow: 0 0 20px rgba(255, 0, 255, 0.2);
}

/* 原始文字區塊 */
.segment-original {
    background: var(--black-base);
    border-left: 3px solid var(--glow-primary);
    padding: var(--space-md);
    margin-bottom: var(--space-lg);
    border-radius: 4px;
}

.segment-original-label {
    font-family: var(--font-tech);
    font-size: 0.7rem;
    color: var(--glow-primary);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: var(--space-sm);
    display: block;
}

.segment-original-text {
    color: var(--white-soft);
    line-height: 1.6;
    font-size: 0.95rem;
}

/* 版本列表 */
.segment-versions {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.version-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-md);
    padding-bottom: var(--space-sm);
    border-bottom: 1px solid var(--gray-dark);
}

.version-title {
    font-family: var(--font-tech);
    font-size: 0.85rem;
    color: var(--glow-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.version-count {
    font-family: var(--font-tech);
    font-size: 0.75rem;
    color: var(--gray-light);
    background: var(--black-base);
    padding: var(--space-xs) var(--space-sm);
    border-radius: 3px;
    border: 1px solid var(--gray-dark);
}

/* 單個版本 */
.version-item {
    background: var(--black-base);
    border: 1px solid var(--gray-dark);
    border-radius: 4px;
    padding: var(--space-md);
    position: relative;
    transition: all 0.3s ease;
}

.version-item:hover {
    border-color: var(--glow-accent);
    box-shadow: 0 0 15px rgba(255, 255, 0, 0.1);
}

/* 版本元數據 */
.version-meta {
    display: flex;
    gap: var(--space-lg);
    flex-wrap: wrap;
    margin-bottom: var(--space-md);
    padding-bottom: var(--space-sm);
    border-bottom: 1px solid var(--gray-dark);
}

.meta-item {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    font-family: var(--font-tech);
    font-size: 0.7rem;
    color: var(--gray-light);
}

.meta-label {
    color: var(--gray-mid);
    text-transform: uppercase;
}

.meta-value {
    color: var(--white-soft);
}

/* 編輯類型標籤 */
.edit-type-badge {
    display: inline-block;
    padding: var(--space-xs) var(--space-sm);
    border-radius: 3px;
    font-family: var(--font-tech);
    font-size: 0.65rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-weight: 600;
}

.edit-type-expansion {
    background: rgba(0, 255, 136, 0.2);
    color: var(--glow-success);
    border: 1px solid var(--glow-success);
}

.edit-type-simplification {
    background: rgba(0, 255, 255, 0.2);
    color: var(--glow-primary);
    border: 1px solid var(--glow-primary);
}

.edit-type-rewriting {
    background: rgba(255, 0, 255, 0.2);
    color: var(--glow-secondary);
    border: 1px solid var(--glow-secondary);
}

.edit-type-correction {
    background: rgba(255, 255, 0, 0.2);
    color: var(--glow-accent);
    border: 1px solid var(--glow-accent);
}

/* 反饋標籤 */
.feedback-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    padding: var(--space-xs) var(--space-sm);
    border-radius: 3px;
    font-size: 0.65rem;
    font-weight: 600;
}

.feedback-accepted {
    background: rgba(0, 255, 136, 0.2);
    color: var(--glow-success);
    border: 1px solid var(--glow-success);
}

.feedback-rejected {
    background: rgba(255, 0, 64, 0.2);
    color: var(--glow-danger);
    border: 1px solid var(--glow-danger);
}

/* 修改後文字 */
.version-refined {
    background: rgba(255, 0, 255, 0.05);
    border-left: 3px solid var(--glow-secondary);
    padding: var(--space-md);
    border-radius: 4px;
    margin-top: var(--space-sm);
}

.version-refined-text {
    color: var(--white-soft);
    line-height: 1.6;
    font-size: 0.9rem;
}

/* 次要按鈕樣式 */
.btn-secondary {
    border-color: var(--glow-secondary);
    color: var(--glow-secondary);
    box-shadow: 0 0 15px rgba(255, 0, 255, 0.2);
}

.btn-secondary:hover {
    transform: translateY(-2px);
    box-shadow: 
        0 5px 25px rgba(255, 0, 255, 0.4),
        inset 0 0 20px rgba(255, 0, 255, 0.2);
    text-shadow: 0 0 10px var(--glow-secondary);
}

/* 空狀態 */
.empty-state {
    text-align: center;
    padding: var(--space-xl) var(--space-lg);
    color: var(--gray-light);
}

.empty-state-icon {
    font-size: 4rem;
    margin-bottom: var(--space-lg);
    opacity: 0.3;
}

.empty-state-text {
    font-family: var(--font-tech);
    font-size: 1rem;
    color: var(--gray-mid);
}

/* 載入中狀態 */
#history-loading {
    margin: var(--space-xl) auto;
}

/* 響應式設計 */
@media (max-width: 768px) {
    .modal-content {
        width: 95%;
        max-height: 90vh;
    }
    
    .history-stats {
        grid-template-columns: 1fr;
    }
    
    .version-meta {
        flex-direction: column;
        gap: var(--space-sm);
    }
}