/* ===== CSS Variables ===== */
:root {
    --color-primary: #FF6B6B;
    --color-primary-light: #FF8E8E;
    --color-primary-dark: #E85555;
    --color-secondary: #4ECDC4;
    --color-secondary-light: #7EDAD4;
    --color-accent-yellow: #FFE66D;
    --color-accent-purple: #A78BFA;
    --color-accent-blue: #60A5FA;
    --color-accent-green: #34D399;
    --color-accent-orange: #FB923C;
    
    --color-bg: #FFF9F0;
    --color-bg-card: #FFFFFF;
    --color-bg-input: #FFF5EB;
    
    --color-text: #2D3748;
    --color-text-light: #718096;
    --color-text-muted: #A0AEC0;
    
    --shadow-sm: 0 2px 8px rgba(255, 107, 107, 0.1);
    --shadow-md: 0 4px 20px rgba(255, 107, 107, 0.15);
    --shadow-lg: 0 8px 40px rgba(255, 107, 107, 0.2);
    
    --radius-sm: 12px;
    --radius-md: 20px;
    --radius-lg: 28px;
    
    --font-main: 'Noto Sans SC', 'Nunito', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-display: 'Nunito', 'Noto Sans SC', sans-serif;
}

/* ===== Reset & Base ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-main);
    background: var(--color-bg);
    color: var(--color-text);
    min-height: 100vh;
    line-height: 1.6;
    overflow-x: hidden;
}

/* ===== Background Pattern ===== */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 10% 20%, rgba(255, 107, 107, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 90% 80%, rgba(78, 205, 196, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 50% 50%, rgba(255, 230, 109, 0.05) 0%, transparent 70%);
    pointer-events: none;
    z-index: -1;
}

/* ===== App Container ===== */
.app-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 20px 40px;
    min-height: 100vh;
    position: relative;
}

/* ===== Header ===== */
.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 0 30px;
}

.logo {
    display: flex;
    align-items: center;
}

.logo-text h1 {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent-purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.5px;
}

.logo-text .subtitle {
    font-family: var(--font-main);
    font-size: 0.9rem;
    color: var(--color-text-light);
    font-weight: 400;
    letter-spacing: 0;
    margin-top: 4px;
}

.settings-btn {
    width: 48px;
    height: 48px;
    border: none;
    background: var(--color-bg-card);
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-light);
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
}

.settings-btn:hover {
    box-shadow: var(--shadow-md);
    color: var(--color-primary);
    transform: rotate(90deg);
}

/* ===== Main Content - Two Column Layout ===== */
.main-content {
    display: grid;
    grid-template-columns: 400px 1fr;
    gap: 40px;
    align-items: start;
}

/* ===== Section Title ===== */
.section-title {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 20px;
}

.section-icon {
    font-size: 1.5rem;
}

.section-title h2 {
    font-family: var(--font-display);
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--color-text);
}

/* ===== Input Section (Left) ===== */
.input-section {
    position: sticky;
    top: 20px;
}

/* ===== Cards ===== */
.card {
    background: var(--color-bg-card);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    overflow: hidden;
    transition: all 0.3s ease;
}

.input-card {
    margin-bottom: 20px;
}

.card-header {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 18px 22px 0;
}

.card-icon {
    font-size: 1.3rem;
}

.card-header h3 {
    font-family: var(--font-display);
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--color-text);
}

.card-body {
    padding: 14px 22px 22px;
}

/* ===== Form Elements ===== */
textarea {
    width: 100%;
    padding: 14px;
    border: 2px solid transparent;
    background: var(--color-bg-input);
    border-radius: var(--radius-sm);
    font-family: var(--font-main);
    font-size: 0.95rem;
    color: var(--color-text);
    resize: none;
    transition: all 0.3s ease;
    line-height: 1.6;
}

textarea::placeholder {
    color: var(--color-text-muted);
}

textarea:focus {
    outline: none;
    border-color: var(--color-primary-light);
    background: white;
    box-shadow: 0 0 0 4px rgba(255, 107, 107, 0.1);
}

.input-hints {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 12px;
}

.hint-tag {
    padding: 5px 12px;
    background: linear-gradient(135deg, rgba(255, 107, 107, 0.1), rgba(167, 139, 250, 0.1));
    border-radius: 20px;
    font-size: 0.8rem;
    color: var(--color-text-light);
    cursor: pointer;
    transition: all 0.3s ease;
}

.hint-tag:hover {
    background: linear-gradient(135deg, rgba(255, 107, 107, 0.2), rgba(167, 139, 250, 0.2));
    transform: translateY(-2px);
}

.hint-text {
    margin-top: 12px;
    font-size: 0.85rem;
    color: var(--color-text-muted);
}

/* ===== Generate Button ===== */
.generate-btn {
    width: 100%;
    padding: 16px 28px;
    border: none;
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
    color: white;
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 700;
    border-radius: var(--radius-md);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
}

.generate-btn:hover:not(:disabled) {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
    background: linear-gradient(135deg, var(--color-primary-light), var(--color-primary));
}

.generate-btn:active:not(:disabled) {
    transform: translateY(0);
}

.generate-btn:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

.btn-icon {
    font-size: 1.2rem;
}

.spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

/* ===== Output Section (Right) ===== */
.output-section {
    min-height: 500px;
}

/* ===== Thinking Section ===== */
.thinking-section {
    background: var(--color-bg-card);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    margin-bottom: 20px;
    overflow: hidden;
    animation: fadeIn 0.3s ease-out;
    border: 2px solid rgba(167, 139, 250, 0.3);
}

.thinking-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 20px;
    background: linear-gradient(135deg, rgba(167, 139, 250, 0.1), rgba(96, 165, 250, 0.1));
    cursor: pointer;
    transition: all 0.3s ease;
    user-select: none;
}

.thinking-header:hover {
    background: linear-gradient(135deg, rgba(167, 139, 250, 0.15), rgba(96, 165, 250, 0.15));
}

.thinking-title {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 600;
    color: var(--color-text);
}

.thinking-icon {
    font-size: 1.2rem;
    animation: pulse 1.5s ease-in-out infinite;
}

.thinking-section.completed .thinking-icon {
    animation: none;
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
        opacity: 1;
    }
    50% {
        transform: scale(1.1);
        opacity: 0.8;
    }
}

.thinking-status {
    font-size: 0.8rem;
    padding: 4px 10px;
    background: var(--color-accent-purple);
    color: white;
    border-radius: 12px;
    font-weight: 600;
}

.thinking-section.completed .thinking-status {
    background: var(--color-accent-green);
}

.thinking-toggle {
    font-size: 0.9rem;
    color: var(--color-text-light);
    transition: transform 0.3s ease;
}

.thinking-section.collapsed .thinking-toggle {
    transform: rotate(-90deg);
}

.thinking-content {
    max-height: 300px;
    overflow-y: auto;
    transition: max-height 0.4s ease, padding 0.4s ease, opacity 0.3s ease;
    padding: 0 20px 20px;
}

.thinking-section.collapsed .thinking-content {
    max-height: 0;
    padding: 0 20px;
    opacity: 0;
    overflow: hidden;
}

.thinking-text {
    font-size: 0.9rem;
    line-height: 1.8;
    color: var(--color-text-light);
    white-space: pre-wrap;
    word-break: break-word;
    padding-top: 10px;
    border-top: 1px dashed rgba(167, 139, 250, 0.3);
}

.thinking-text:empty::before {
    content: '等待思考内容...';
    color: var(--color-text-muted);
    font-style: italic;
}

/* Thinking text cursor animation */
.thinking-cursor {
    display: inline-block;
    width: 2px;
    height: 1em;
    background: var(--color-accent-purple);
    margin-left: 2px;
    animation: blink 0.8s step-end infinite;
    vertical-align: text-bottom;
}

@keyframes blink {
    50% {
        opacity: 0;
    }
}

/* ===== Empty State ===== */
.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 80px 40px;
    background: var(--color-bg-card);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    text-align: center;
    animation: fadeIn 0.5s ease-out;
}

.empty-icon {
    font-size: 4rem;
    margin-bottom: 20px;
    animation: float 3s ease-in-out infinite;
}

.empty-state p {
    color: var(--color-text-muted);
    font-size: 1rem;
    line-height: 1.8;
}

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

/* ===== Play Cards Container ===== */
.play-cards-container {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

/* ===== Play Card ===== */
.play-card {
    background: var(--color-bg-card);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    padding: 24px;
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
}

.play-card:nth-of-type(1) {
    border-left: 5px solid var(--color-primary);
}

.play-card:nth-of-type(2) {
    border-left: 5px solid var(--color-secondary);
}

.play-card:nth-of-type(3) {
    border-left: 5px solid var(--color-accent-purple);
}

.play-card:hover {
    transform: translateX(5px);
    box-shadow: var(--shadow-lg);
}

.play-card-number {
    position: absolute;
    top: 16px;
    right: 20px;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 800;
    color: white;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent-purple));
}

.play-card:nth-of-type(2) .play-card-number {
    background: linear-gradient(135deg, var(--color-secondary), var(--color-accent-blue));
}

.play-card:nth-of-type(3) .play-card-number {
    background: linear-gradient(135deg, var(--color-accent-purple), var(--color-accent-orange));
}

/* ===== Export Buttons ===== */
.export-all-bar {
    display: flex;
    justify-content: flex-end;
    margin-bottom: 8px;
}

.export-all-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    background: linear-gradient(135deg, var(--color-secondary), #3DBDB5);
    color: white;
    border: none;
    border-radius: var(--radius-sm);
    font-family: var(--font-main);
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-sm);
}

.export-all-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.export-all-btn:active {
    transform: translateY(0);
}

.export-card-btn {
    position: absolute;
    top: 16px;
    right: 64px;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-bg-input);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    transition: all 0.3s ease;
    opacity: 0;
    color: var(--color-text-light);
}

.play-card:hover .export-card-btn {
    opacity: 1;
}

.export-card-btn:hover {
    background: var(--color-secondary);
    color: white;
    transform: scale(1.1);
}

/* ===== Card Watermark (for export) ===== */
.play-card-watermark {
    position: absolute;
    bottom: 8px;
    right: 12px;
    font-family: var(--font-display);
    font-size: 0.7rem;
    color: var(--color-text-muted);
    opacity: 0.5;
    pointer-events: none;
}

.play-theme {
    padding-right: 50px;
    margin-bottom: 16px;
}

.play-theme h3 {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--color-text);
    margin-bottom: 4px;
}

.play-theme p {
    color: var(--color-text-light);
    font-size: 0.9rem;
}

.play-section {
    margin-bottom: 16px;
}

.section-label {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--color-text-light);
    font-size: 0.85rem;
}

.label-icon {
    font-size: 1rem;
}

.section-content {
    padding: 14px 18px;
    background: var(--color-bg-input);
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
    line-height: 1.7;
    color: var(--color-text);
}

.play-meta {
    display: flex;
    gap: 12px;
    margin-bottom: 16px;
}

.meta-item {
    flex: 1;
    padding: 12px 16px;
    background: var(--color-bg-input);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    gap: 10px;
}

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

.meta-value {
    font-weight: 600;
    color: var(--color-text);
    font-size: 0.9rem;
}

.play-tip {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 14px 16px;
    background: linear-gradient(135deg, rgba(255, 107, 107, 0.08), rgba(78, 205, 196, 0.08));
    border-radius: var(--radius-sm);
}

.tip-icon {
    font-size: 1.1rem;
    flex-shrink: 0;
}

.play-tip p {
    font-size: 0.9rem;
    color: var(--color-text);
    line-height: 1.5;
}

/* ===== Modal ===== */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: 20px;
    animation: fadeIn 0.3s ease-out;
}

.modal-overlay.active {
    display: flex;
}

.modal {
    background: var(--color-bg-card);
    border-radius: var(--radius-lg);
    width: 100%;
    max-width: 440px;
    box-shadow: var(--shadow-lg);
    animation: modalSlide 0.3s ease-out;
}

@keyframes modalSlide {
    from {
        opacity: 0;
        transform: translateY(-20px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 24px 28px 16px;
    border-bottom: 1px solid rgba(0, 0, 0, 0.06);
}

.modal-header h2 {
    font-family: var(--font-display);
    font-size: 1.3rem;
    font-weight: 700;
}

.close-btn {
    width: 36px;
    height: 36px;
    border: none;
    background: var(--color-bg-input);
    border-radius: 50%;
    font-size: 1.5rem;
    color: var(--color-text-light);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.close-btn:hover {
    background: var(--color-primary);
    color: white;
}

.modal-body {
    padding: 24px 28px;
}

.setting-item {
    margin-bottom: 24px;
}

.setting-item:last-child {
    margin-bottom: 0;
}

.setting-item label {
    display: block;
    margin-bottom: 10px;
    font-weight: 600;
    color: var(--color-text);
}

.setting-item input {
    width: 100%;
    padding: 14px 18px;
    border: 2px solid transparent;
    background: var(--color-bg-input);
    border-radius: var(--radius-sm);
    font-family: var(--font-main);
    font-size: 1rem;
    color: var(--color-text);
    transition: all 0.3s ease;
}

.setting-item input:focus {
    outline: none;
    border-color: var(--color-primary-light);
    background: white;
}

.setting-hint {
    margin-top: 10px;
    font-size: 0.85rem;
    color: var(--color-text-muted);
}

.setting-hint a {
    color: var(--color-primary);
    text-decoration: none;
    font-weight: 600;
}

.setting-hint a:hover {
    text-decoration: underline;
}

.modal-footer {
    padding: 16px 28px 24px;
}

.save-btn {
    width: 100%;
    padding: 16px;
    border: none;
    background: linear-gradient(135deg, var(--color-secondary), #3DBDB5);
    color: white;
    font-family: var(--font-display);
    font-size: 1.05rem;
    font-weight: 700;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all 0.3s ease;
}

.save-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* ===== QR Code Modal ===== */
.qrcode-modal {
    max-width: 380px;
}

.qrcode-body {
    text-align: center;
    padding: 20px 28px 28px;
}

.qrcode-container {
    background: white;
    padding: 16px;
    border-radius: var(--radius-md);
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
    display: inline-block;
    margin-bottom: 20px;
}

.qrcode-image {
    width: 200px;
    height: 200px;
    object-fit: contain;
    border-radius: 8px;
}

.qrcode-tips {
    text-align: left;
    background: var(--color-bg-input);
    padding: 20px;
    border-radius: var(--radius-sm);
}

.tip-title {
    font-size: 1rem;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 14px;
}

.tip-steps {
    margin-bottom: 14px;
}

.tip-steps p {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.9rem;
    color: var(--color-text);
    margin-bottom: 10px;
    line-height: 1.5;
}

.tip-steps p:last-child {
    margin-bottom: 0;
}

.step-num {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 22px;
    height: 22px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent-purple));
    color: white;
    font-size: 0.75rem;
    font-weight: 700;
    border-radius: 50%;
    flex-shrink: 0;
}

.tip-note {
    font-size: 0.8rem;
    color: var(--color-text-muted);
    padding-top: 14px;
    border-top: 1px dashed rgba(0, 0, 0, 0.1);
}

/* ===== Toast ===== */
.toast {
    position: fixed;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    padding: 14px 28px;
    background: var(--color-text);
    color: white;
    border-radius: var(--radius-md);
    font-weight: 600;
    box-shadow: var(--shadow-lg);
    z-index: 2000;
    opacity: 0;
    transition: all 0.3s ease;
}

.toast.show {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

.toast.success {
    background: var(--color-accent-green);
}

.toast.error {
    background: var(--color-primary);
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
    .app-container {
        padding: 20px;
    }
    
    .main-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .input-section {
        position: static;
    }
}

@media (max-width: 600px) {
    .app-container {
        padding: 16px;
    }
    
    .logo-text h1 {
        font-size: 1.5rem;
    }
    
    .card-header {
        padding: 16px 18px 0;
    }
    
    .card-body {
        padding: 12px 18px 18px;
    }
    
    .play-card {
        padding: 20px;
    }
    
    .play-meta {
        flex-direction: column;
    }
    
    .decoration {
        display: none;
    }
}

/* ===== Scrollbar ===== */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: rgba(255, 107, 107, 0.3);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 107, 107, 0.5);
}

/* ===== Selection ===== */
::selection {
    background: rgba(255, 107, 107, 0.3);
    color: var(--color-text);
}

/* ===== Little Sidekick Specific Styles ===== */

.card-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 8px;
}

.tag {
    font-size: 0.75rem;
    padding: 2px 8px;
    background: rgba(0, 0, 0, 0.05); /* Neutral background */
    border-radius: 4px;
    color: var(--color-text-light);
    font-weight: 500;
}

.script-text {
    font-family: "Comic Sans MS", "Chalkboard SE", var(--font-main); /* Playful font for script */
    font-style: italic;
    color: var(--color-text);
    background: #FFFEF5; /* Note-like background */
    border-left: 3px solid var(--color-accent-yellow);
}

.safety-section {
    background: rgba(255, 107, 107, 0.08); /* Light Red background */
    border-radius: var(--radius-sm);
    padding: 12px 16px;
    margin-bottom: 16px;
}

.safety-text {
    font-size: 0.9rem;
    color: var(--color-primary-dark);
    font-weight: 600;
}

/* ===== Challenges & Troubleshooting Styles ===== */

/* 给孩子设计的挑战 */
.challenges-section {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.challenge-item {
    padding: 16px;
    background: linear-gradient(135deg, rgba(255, 230, 109, 0.15), rgba(251, 146, 60, 0.1));
    border-radius: var(--radius-sm);
    border-left: 3px solid var(--color-accent-orange);
}

.challenge-title {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 8px;
}

.challenge-purpose {
    font-size: 0.85rem;
    color: var(--color-accent-purple);
    margin-bottom: 6px;
    font-weight: 500;
}

.challenge-hint {
    font-size: 0.85rem;
    color: var(--color-text-light);
    line-height: 1.5;
}

/* 问题排解 */
.trouble-section {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.trouble-item {
    padding: 14px 16px;
    background: var(--color-bg-input);
    border-radius: var(--radius-sm);
}

.trouble-problem {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 8px;
}

.trouble-solution {
    font-size: 0.9rem;
    color: var(--color-text-light);
    line-height: 1.6;
    padding-left: 24px;
}

/* ===== Know Why Specific Styles ===== */

.highlight-content {
    background: linear-gradient(135deg, rgba(52, 211, 153, 0.15), rgba(78, 205, 196, 0.1));
    border-left: 3px solid var(--color-accent-green);
    font-weight: 500;
}

/* ===== C.G.M 模型样式 ===== */

/* 通用 CGM 区块 */
.cgm-section {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-top: 16px;
}

.cgm-item {
    padding: 14px 16px;
    background: var(--color-bg-input);
    border-radius: var(--radius-sm);
}

.cgm-item-label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-text-light);
    margin-bottom: 8px;
}

.cgm-item-content {
    font-size: 0.95rem;
    color: var(--color-text);
    line-height: 1.7;
}

/* C - 建构卡片样式 */
.construct-section .cgm-item {
    border-left: 3px solid #4CAF50;
}

.construct-section .normal-check {
    background: linear-gradient(135deg, rgba(76, 175, 80, 0.1), rgba(139, 195, 74, 0.05));
}

/* G - 引导卡片样式 */
.guide-section .cgm-item {
    border-left: 3px solid #2196F3;
}

.scaffolding-container {
    padding: 16px;
    background: var(--color-bg-input);
    border-radius: var(--radius-sm);
    border-left: 3px solid #FF9800;
}

.scaffold-item {
    display: flex;
    gap: 12px;
    padding: 12px;
    margin-bottom: 10px;
    background: white;
    border-radius: 8px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.05);
}

.scaffold-item:last-child {
    margin-bottom: 0;
}

.scaffold-level {
    flex-shrink: 0;
    padding: 4px 10px;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 600;
    white-space: nowrap;
}

.scaffold-level-1 .scaffold-level {
    background: #E8F5E9;
    color: #2E7D32;
}

.scaffold-level-2 .scaffold-level {
    background: #FFF3E0;
    color: #E65100;
}

.scaffold-level-3 .scaffold-level {
    background: #E3F2FD;
    color: #1565C0;
}

.scaffold-content {
    flex: 1;
}

.scaffold-action {
    font-size: 0.9rem;
    color: var(--color-text);
    margin-bottom: 6px;
    line-height: 1.5;
}

.scaffold-script {
    font-size: 0.85rem;
    color: var(--color-accent-purple);
    font-style: italic;
    background: #F3E5F5;
    padding: 8px 12px;
    border-radius: 6px;
}

.warning-item {
    background: linear-gradient(135deg, rgba(255, 152, 0, 0.1), rgba(255, 193, 7, 0.05));
    border-left: 3px solid #FF9800 !important;
}

/* M - 镜像卡片样式 */
.mirror-section .cgm-item {
    border-left: 3px solid #9C27B0;
}

.response-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

@media (max-width: 600px) {
    .response-container {
        grid-template-columns: 1fr;
    }
}

.response-item {
    padding: 16px;
    border-radius: var(--radius-sm);
}

.response-item.positive {
    background: linear-gradient(135deg, rgba(76, 175, 80, 0.1), rgba(139, 195, 74, 0.05));
    border: 1px solid rgba(76, 175, 80, 0.2);
}

.response-item.negative {
    background: linear-gradient(135deg, rgba(244, 67, 54, 0.08), rgba(255, 152, 0, 0.05));
    border: 1px solid rgba(244, 67, 54, 0.15);
}

.response-header {
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 10px;
}

.response-item.positive .response-header {
    color: #2E7D32;
}

.response-item.negative .response-header {
    color: #C62828;
}

.response-action {
    font-size: 0.9rem;
    color: var(--color-text);
    margin-bottom: 8px;
    line-height: 1.6;
}

.response-effect {
    font-size: 0.85rem;
    color: var(--color-text-light);
    line-height: 1.5;
}

.growth-point {
    margin-top: 10px;
    padding: 8px 12px;
    background: linear-gradient(135deg, #FFF8E1, #FFFDE7);
    border-radius: 8px;
    font-size: 0.85rem;
    font-weight: 600;
    color: #F57F17;
}

/* 行动计划样式 */
.action-plan-section {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-top: 16px;
}

.action-item {
    padding: 16px;
    border-radius: var(--radius-sm);
}

.action-item.immediate {
    background: linear-gradient(135deg, rgba(233, 30, 99, 0.1), rgba(156, 39, 176, 0.05));
    border-left: 3px solid #E91E63;
}

.action-item.daily {
    background: linear-gradient(135deg, rgba(33, 150, 243, 0.1), rgba(3, 169, 244, 0.05));
    border-left: 3px solid #2196F3;
}

.action-item.observe {
    background: linear-gradient(135deg, rgba(76, 175, 80, 0.1), rgba(139, 195, 74, 0.05));
    border-left: 3px solid #4CAF50;
}

.action-label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-text-light);
    margin-bottom: 8px;
}

.action-content {
    font-size: 0.95rem;
    color: var(--color-text);
    line-height: 1.7;
}

/* 原因分析 - 保留兼容旧版 */
.reasons-section {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.reason-item {
    padding: 16px;
    background: var(--color-bg-input);
    border-radius: var(--radius-sm);
    border-left: 3px solid var(--color-accent-blue);
}

.reason-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 8px;
}

.reason-explanation {
    font-size: 0.9rem;
    color: var(--color-text-light);
    line-height: 1.7;
    margin-bottom: 10px;
}

.reason-signs {
    font-size: 0.85rem;
    color: var(--color-accent-purple);
    font-weight: 500;
}

/* 应对策略 */
.strategies-section {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.strategy-item {
    padding: 16px;
    background: linear-gradient(135deg, rgba(52, 211, 153, 0.08), rgba(78, 205, 196, 0.05));
    border-radius: var(--radius-sm);
    border-left: 3px solid var(--color-accent-green);
}

.strategy-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-accent-green);
    margin-bottom: 8px;
}

.strategy-how {
    font-size: 0.9rem;
    color: var(--color-text);
    line-height: 1.7;
    margin-bottom: 10px;
}

.strategy-why {
    font-size: 0.85rem;
    color: var(--color-text-light);
}

/* 常见错误 */
.mistakes-section {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.mistake-item {
    padding: 16px;
    background: linear-gradient(135deg, rgba(255, 107, 107, 0.08), rgba(251, 146, 60, 0.05));
    border-radius: var(--radius-sm);
    border-left: 3px solid var(--color-primary);
}

.mistake-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: 8px;
}

.mistake-why {
    font-size: 0.9rem;
    color: var(--color-text);
    line-height: 1.7;
    margin-bottom: 10px;
}

.mistake-consequence {
    font-size: 0.85rem;
    color: var(--color-text-light);
    font-weight: 500;
}

/* ===== Quick Navigation Menu ===== */
.quick-nav {
    position: fixed;
    bottom: 30px;
    right: 30px;
    z-index: 100;
}

.quick-nav-trigger {
    width: 56px;
    height: 56px;
    background: var(--color-bg-card);
    border-radius: 50%;
    box-shadow: var(--shadow-md);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    z-index: 2;
}

.quick-nav-trigger img {
    width: 36px;
    height: 36px;
    object-fit: contain;
    transition: transform 0.3s ease;
}

.quick-nav:hover .quick-nav-trigger {
    transform: scale(1.05);
    box-shadow: var(--shadow-lg);
}

.quick-nav:hover .quick-nav-trigger img {
    transform: rotate(15deg);
}

.quick-nav-menu {
    position: absolute;
    bottom: 70px;
    right: 0;
    display: flex;
    flex-direction: column;
    gap: 12px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all 0.3s ease;
}

.quick-nav:hover .quick-nav-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.quick-nav-item {
    width: 48px;
    height: 48px;
    background: var(--color-bg-card);
    border-radius: 50%;
    box-shadow: var(--shadow-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    transition: all 0.3s ease;
    position: relative;
}

.quick-nav-item .nav-icon {
    font-size: 1.3rem;
    transition: transform 0.3s ease;
}

.quick-nav-item:hover {
    transform: scale(1.15);
    box-shadow: var(--shadow-md);
}

.quick-nav-item:hover .nav-icon {
    transform: scale(1.1);
}

.quick-nav-item.active {
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent-purple));
    box-shadow: var(--shadow-md);
}

.quick-nav-item.active .nav-icon {
    filter: grayscale(100%) brightness(10);
}

/* Tooltip */
.quick-nav-item::before {
    content: attr(data-tooltip);
    position: absolute;
    right: calc(100% + 12px);
    top: 50%;
    transform: translateY(-50%) translateX(5px);
    padding: 8px 14px;
    background: var(--color-text);
    color: white;
    font-size: 0.85rem;
    font-weight: 600;
    border-radius: var(--radius-sm);
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: all 0.2s ease;
}

.quick-nav-item:hover::before {
    opacity: 1;
    visibility: visible;
    transform: translateY(-50%) translateX(0);
}

/* Stagger animation for menu items */
.quick-nav-menu .quick-nav-item:nth-child(1) {
    transition-delay: 0.05s;
}
.quick-nav-menu .quick-nav-item:nth-child(2) {
    transition-delay: 0.1s;
}
.quick-nav-menu .quick-nav-item:nth-child(3) {
    transition-delay: 0.15s;
}

.quick-nav:hover .quick-nav-menu .quick-nav-item:nth-child(1) {
    transition-delay: 0s;
}
.quick-nav:hover .quick-nav-menu .quick-nav-item:nth-child(2) {
    transition-delay: 0.05s;
}
.quick-nav:hover .quick-nav-menu .quick-nav-item:nth-child(3) {
    transition-delay: 0.1s;
}

/* ===== Vlogger Timeline Styles ===== */
.today-date-display {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 16px;
    background: linear-gradient(135deg, rgba(255, 107, 107, 0.1), rgba(167, 139, 250, 0.1));
    border-radius: var(--radius-sm);
    margin-bottom: 14px;
}

.today-date-display .date-icon {
    font-size: 1.2rem;
}

.today-date-display .date-text {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text);
}

.today-date-display .date-weekday {
    font-size: 0.85rem;
    color: var(--color-primary);
    font-weight: 500;
}

.timeline-container {
    display: flex;
    flex-direction: column;
    gap: 10px;
    max-height: 280px;
    overflow-y: auto;
    padding-right: 4px;
}

.timeline-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    background: var(--color-bg-input);
    border-radius: var(--radius-sm);
    transition: all 0.2s ease;
}

.timeline-item:hover {
    background: rgba(255, 107, 107, 0.08);
}

.timeline-time {
    width: 80px;
    flex-shrink: 0;
    padding: 8px 10px;
    border: 1px solid transparent;
    background: white;
    border-radius: 8px;
    font-family: var(--font-main);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-primary);
    cursor: pointer;
    transition: all 0.2s ease;
    appearance: none;
    -webkit-appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23718096' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 8px center;
    padding-right: 28px;
}

.timeline-time:focus {
    outline: none;
    border-color: var(--color-primary-light);
    box-shadow: 0 0 0 3px rgba(255, 107, 107, 0.1);
}

.timeline-event {
    flex: 1;
    padding: 8px 12px;
    border: 1px solid transparent;
    background: white;
    border-radius: 8px;
    font-family: var(--font-main);
    font-size: 0.9rem;
    color: var(--color-text);
    transition: all 0.2s ease;
}

.timeline-event::placeholder {
    color: var(--color-text-muted);
}

.timeline-event:focus {
    outline: none;
    border-color: var(--color-primary-light);
    box-shadow: 0 0 0 3px rgba(255, 107, 107, 0.1);
}

.timeline-remove-btn {
    width: 28px;
    height: 28px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    border-radius: 50%;
    color: var(--color-text-muted);
    cursor: pointer;
    transition: all 0.2s ease;
    opacity: 0.5;
}

.timeline-item:hover .timeline-remove-btn {
    opacity: 1;
}

.timeline-remove-btn:hover {
    background: rgba(255, 107, 107, 0.15);
    color: var(--color-primary);
}

.add-timeline-btn {
    width: 100%;
    padding: 12px;
    margin-top: 12px;
    border: 2px dashed var(--color-text-muted);
    background: transparent;
    border-radius: var(--radius-sm);
    font-family: var(--font-main);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-text-light);
    cursor: pointer;
    transition: all 0.3s ease;
}

.add-timeline-btn:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
    background: rgba(255, 107, 107, 0.05);
}

.add-timeline-btn:active {
    transform: scale(0.98);
}

/* ===== 探索模式 (Explore Mode) ===== */
.explore-mode-section {
    margin-top: 24px;
    padding-top: 24px;
    border-top: 1px solid rgba(0, 0, 0, 0.08);
}

.explore-mode-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 16px;
}

.explore-mode-title {
    display: flex;
    align-items: center;
    gap: 10px;
}

.explore-mode-title h4 {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--color-text);
    margin: 0;
}

.explore-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 3px 10px;
    background: linear-gradient(135deg, #667eea, #764ba2);
    border-radius: 20px;
    font-size: 0.7rem;
    font-weight: 700;
    color: white;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.explore-mode-desc {
    font-size: 0.82rem;
    color: var(--color-text-light);
    margin-bottom: 16px;
    line-height: 1.6;
}

/* Toggle Switch */
.toggle-switch {
    position: relative;
    width: 52px;
    height: 28px;
    flex-shrink: 0;
}

.toggle-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.toggle-slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: #E2E8F0;
    transition: 0.3s;
    border-radius: 28px;
}

.toggle-slider:before {
    position: absolute;
    content: "";
    height: 22px;
    width: 22px;
    left: 3px;
    bottom: 3px;
    background: white;
    transition: 0.3s;
    border-radius: 50%;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
}

.toggle-switch input:checked + .toggle-slider {
    background: linear-gradient(135deg, #667eea, #764ba2);
}

.toggle-switch input:checked + .toggle-slider:before {
    transform: translateX(24px);
}

.toggle-switch input:focus + .toggle-slider {
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.2);
}

/* Explore API Key Input */
.explore-api-section {
    margin-top: 16px;
    padding: 16px;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.08), rgba(118, 75, 162, 0.08));
    border-radius: var(--radius-sm);
    border: 1px solid rgba(102, 126, 234, 0.15);
    display: none;
}

.explore-api-section.active {
    display: block;
    animation: fadeSlideIn 0.3s ease;
}

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

.explore-api-section label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    color: #667eea;
    margin-bottom: 8px;
}

.explore-api-section input {
    width: 100%;
    padding: 12px 14px;
    border: 1px solid rgba(102, 126, 234, 0.25);
    border-radius: 8px;
    font-size: 0.9rem;
    background: white;
    transition: all 0.2s ease;
}

.explore-api-section input:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.15);
}

.explore-api-hint {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    margin-top: 12px;
    padding: 10px 12px;
    background: rgba(255, 255, 255, 0.7);
    border-radius: 8px;
    font-size: 0.8rem;
    color: var(--color-text-light);
    line-height: 1.5;
}

.explore-api-hint a {
    color: #667eea;
    text-decoration: none;
    font-weight: 600;
}

.explore-api-hint a:hover {
    text-decoration: underline;
}

/* Test API Button */
.test-api-btn {
    margin-top: 12px;
    padding: 10px 20px;
    background: linear-gradient(135deg, #667eea, #764ba2);
    border: none;
    border-radius: 8px;
    font-family: var(--font-main);
    font-size: 0.85rem;
    font-weight: 600;
    color: white;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    gap: 8px;
}

.test-api-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.35);
}

.test-api-btn:active {
    transform: translateY(0);
}

.test-api-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.test-api-btn .spinner {
    width: 14px;
    height: 14px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

/* API Test Result */
.api-test-result {
    margin-top: 12px;
    padding: 10px 14px;
    border-radius: 8px;
    font-size: 0.85rem;
    font-weight: 500;
    display: none;
}

.api-test-result.success {
    display: block;
    background: rgba(52, 211, 153, 0.15);
    color: #059669;
    border: 1px solid rgba(52, 211, 153, 0.3);
}

.api-test-result.error {
    display: block;
    background: rgba(255, 107, 107, 0.15);
    color: #dc2626;
    border: 1px solid rgba(255, 107, 107, 0.3);
}

/* Explore Mode Active Indicator */
.explore-mode-indicator {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    background: transparent;
    border: 1px solid rgba(102, 126, 234, 0.3);
    border-radius: 6px;
    font-size: 0.75rem;
    font-weight: 500;
    color: #667eea;
    margin-left: auto;
    margin-right: 8px;
    letter-spacing: 0.3px;
    opacity: 0.85;
    transition: opacity 0.2s ease;
}

.explore-mode-indicator:hover {
    opacity: 1;
}

.explore-mode-indicator::before {
    content: '';
    width: 6px;
    height: 6px;
    background: #667eea;
    border-radius: 50%;
    animation: pulse 2s ease-in-out infinite;
}

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