/* ========================================
   三江源动物性格测试 - 高原风格样式
   ======================================== */

/* CSS 变量 - 高原主题色 */
:root {
    /* 高原蓝系列 */
    --plateau-blue-dark: #1a3a5c;
    --plateau-blue: #2d5a87;
    --plateau-blue-light: #4a7ba7;
    --plateau-sky: #6ba3d4;
    
    /* 大地色系列 */
    --earth-brown: #8b7355;
    --earth-tan: #c4a574;
    --earth-sand: #e8dcc4;
    --earth-cream: #f5f0e6;
    
    /* 藏式金色 */
    --tibetan-gold: #d4a84b;
    --tibetan-gold-light: #f0d78c;
    
    /* 动物主题色 */
    --wolf-gray: #5a6a7a;
    --gull-brown: #8b6914;
    --yak-brown: #4a3728;
    --vulture-dark: #3d3d3d;
    --fox-orange: #c45c26;
    
    /* 功能色 */
    --success: #4a9c6d;
    --warning: #d4a84b;
    --error: #c45c26;
    
    /* 文字色 */
    --text-primary: #2c3e50;
    --text-secondary: #5a6a7a;
    --text-light: #ffffff;
    
    /* 背景色 */
    --bg-primary: #f8f6f2;
    --bg-card: #ffffff;
    --bg-gradient-start: #e8f4fc;
    --bg-gradient-end: #f5f0e6;
    
    /* 阴影 */
    --shadow-sm: 0 2px 8px rgba(45, 90, 135, 0.1);
    --shadow-md: 0 4px 16px rgba(45, 90, 135, 0.15);
    --shadow-lg: 0 8px 32px rgba(45, 90, 135, 0.2);
    --shadow-xl: 0 16px 64px rgba(45, 90, 135, 0.25);
    
    /* 过渡 */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* 圆角 */
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-xl: 32px;
}

/* 重置样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    background: linear-gradient(135deg, var(--bg-gradient%, var(--bg-gradient-end) 100%);
    min-height: 100-start) 0vh;
    color: var(--text-primary);
    line-height: 1.6;
}

/* 容器 */
.container {
    max-width: 800px;
    margin: 0 auto;
    min-height: 100vh;
    position: relative;
}

/* 页面切换 */
.page {
    display: none;
    opacity: 0;
    transform: translateY(20px);
    transition: opacity var(--transition-slow), transform var(--transition-slow);
    min-height: 100vh;
    padding: 20px;
}

.page.active {
    display: flex;
    flex-direction: column;
    opacity: 1;
    transform: translateY(0);
}

/* ========================================
   首页样式
   ======================================== */

.hero {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    text-align: center;
    padding: 40px 20px;
    position: relative;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(ellipse at 20% 80%, rgba(107, 163, 212, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 20%, rgba(212, 168, 75, 0.1) 0%, transparent 50%),
        radial-gradient(ellipse at 50% 50%, rgba(200, 180, 140, 0.1) 0%, transparent 70%);
    z-index: -1;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 40px;
}

.logo-icon {
    font-size: 48px;
    animation: float 3s ease-in-out infinite;
}

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

.logo-text {
    font-size: 28px;
    font-weight: 700;
    color: var(--plateau-blue-dark);
    letter-spacing: 2px;
}

.hero h1 {
    font-size: 42px;
    font-weight: 700;
    color: var(--plateau-blue-dark);
    margin-bottom: 16px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.1);
}

.tagline {
    font-size: 20px;
    color: var(--tibetan-gold);
    font-weight: 500;
    margin-bottom: 24px;
}

.description {
    font-size: 16px;
    color: var(--text-secondary);
    margin-bottom: 40px;
    line-height: 1.8;
}

/* 特性展示 */
.features {
    display: flex;
    gap: 32px;
    margin-bottom: 48px;
    flex-wrap: wrap;
    justify-content: center;
}

.feature {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 20px;
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
    min-width: 120px;
}

.feature:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.feature-icon {
    font-size: 32px;
}

.feature span:last-child {
    font-size: 14px;
    color: var(--text-secondary);
    font-weight: 500;
}

/* 按钮样式 */
.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding: 18px 48px;
    background: linear-gradient(135deg, var(--plateau-blue) 0%, var(--plateau-blue-dark) 100%);
    color: var(--text-light);
    border: none;
    border-radius: var(--radius-xl);
    font-size: 18px;
    font-weight: 600;
    cursor: pointer;
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-normal);
    text-decoration: none;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-xl);
}

.btn-primary:active {
    transform: translateY(-1px);
}

.btn-arrow {
    transition: transform var(--transition-fast);
}

.btn-primary:hover .btn-arrow {
    transform: translateX(5px);
}

.btn-secondary {
    padding: 14px 32px;
    background: var(--bg-card);
    color: var(--plateau-blue);
    border: 2px solid var(--plateau-blue-light);
    border-radius: var(--radius-xl);
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-normal);
}

.btn-secondary:hover:not(:disabled) {
    background: var(--plateau-blue);
    color: var(--text-light);
}

.btn-secondary:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.disclaimer {
    margin-top: 32px;
    font-size: 12px;
    color: var(--text-secondary);
    opacity: 0.7;
}

/* ========================================
   测试页面样式
   ======================================== */

.test-header {
    padding: 20px 0;
}

.progress-container {
    display: flex;
    align-items: center;
    gap: 16px;
    max-width: 600px;
    margin: 0 auto;
}

.progress-bar {
    flex: 1;
    height: 8px;
    background: var(--earth-sand);
    border-radius: var(--radius-xl);
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--plateau-blue) 0%, var(--plateau-sky) 100%);
    border-radius: var(--radius-xl);
    transition: width var(--transition-normal);
    width: 0%;
}

.progress-text {
    font-size: 14px;
    color: var(--text-secondary);
    font-weight: 500;
    min-width: 60px;
    text-align: right;
}

.question-container {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px 20px;
}

.question-card {
    background: var(--bg-card);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    padding: 48px;
    max-width: 600px;
    width: 100%;
    text-align: center;
    animation: cardAppear var(--transition-normal);
}

@keyframes cardAppear {
    from {
        opacity: 0;
        transform: scale(0.95);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.question-text {
    font-size: 22px;
    color: var(--text-primary);
    margin-bottom: 32px;
    line-height: 1.6;
    font-weight: 500;
}

.options {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.option {
    padding: 18px 24px;
    background: var(--bg-primary);
    border: 2px solid transparent;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-normal);
    text-align: left;
    font-size: 16px;
    color: var(--text-primary);
    position: relative;
    overflow: hidden;
}

.option:hover {
    border-color: var(--plateau-blue-light);
    background: var(--bg-card);
    transform: translateX(5px);
}

.option.selected {
    border-color: var(--plateau-blue);
    background: rgba(45, 90, 135, 0.1);
}

.option::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    bottom: 0;
    width: 4px;
    background: var(--plateau-blue);
    transform: scaleY(0);
    transition: transform var(--transition-fast);
}

.option.selected::before {
    transform: scaleY(1);
}

/* 导航按钮 */
.navigation {
    display: flex;
    justify-content: center;
    gap: 24px;
    padding: 32px 20px;
}

/* ========================================
   结果页面样式
   ======================================== */

.result-container {
    padding: 40px 20px;
    max-width: 700px;
    margin: 0 auto;
}

.result-header {
    text-align: center;
    margin-bottom: 32px;
}

.result-header h2 {
    font-size: 28px;
    color: var(--plateau-blue-dark);
    position: relative;
    display: inline-block;
}

.result-header h2::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: var(--tibetan-gold);
    border-radius: var(--radius-xl);
}

.result-card {
    background: var(--bg-card);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    padding: 48px;
    text-align: center;
}

.animal-avatar {
    width: 160px;
    height: 160px;
    margin: 0 auto 24px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 80px;
    background: var(--bg-primary);
    box-shadow: var(--shadow-md);
    animation: avatarAppear var(--transition-slow);
}

@keyframes avatarAppear {
    from {
        opacity: 0;
        transform: scale(0.5) rotate(-10deg);
    }
    to {
        opacity: 1;
        transform: scale(1) rotate(0);
    }
}

.animal-name {
    font-size: 36px;
    color: var(--plateau-blue-dark);
    margin-bottom: 8px;
    font-weight: 700;
}

.animal-tagline {
    font-size: 18px;
    color: var(--tibetan-gold);
    font-weight: 500;
    margin-bottom: 32px;
}

.traits-container,
.radar-chart-container,
.description-container,
.match-container,
.tips-container {
    margin-bottom: 32px;
}

.traits-container h4,
.radar-chart-container h4,
.description-container h4,
.match-container h4,
.tips-container h4 {
    font-size: 16px;
    color: var(--text-secondary);
    margin-bottom: 16px;
    font-weight: 500;
}

.traits {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    justify-content: center;
}

.trait-tag {
    padding: 8px 20px;
    background: var(--bg-primary);
    border-radius: var(--radius-xl);
    font-size: 14px;
    color: var(--plateau-blue);
    font-weight: 500;
    animation: tagAppear var(--transition-normal) backwards;
}

.trait-tag:nth-child(1) { animation-delay: 0.1s; }
.trait-tag:nth-child(2) { animation-delay: 0.2s; }
.trait-tag:nth-child(3) { animation-delay: 0.3s; }
.trait-tag:nth-child(4) { animation-delay: 0.4s; }

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

/* 雷达图 */
.radar-chart-container {
    position: relative;
    padding: 20px 0;
}

#radarChart {
    max-width: 100%;
    height: auto;
}

.radar-labels {
    display: flex;
    justify-content: center;
    gap: 24px;
    margin-top: 16px;
    flex-wrap: wrap;
}

.radar-labels span {
    font-size: 12px;
    color: var(--text-secondary);
    padding: 4px 12px;
    background: var(--bg-primary);
    border-radius: var(--radius-sm);
}

.description-text,
.match-text,
.tips-text {
    font-size: 16px;
    color: var(--text-primary);
    line-height: 1.8;
    text-align: left;
}

.action-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    margin-top: 40px;
    flex-wrap: wrap;
}

/* 野生动物保护提示 */
.wildlife-notice {
    margin-top: 32px;
    padding: 24px;
    background: linear-gradient(135deg, rgba(74, 156, 109, 0.1) 0%, rgba(45, 90, 135, 0.1) 100%);
    border-radius: var(--radius-lg);
    text-align: center;
}

.wildlife-notice p {
    font-size: 14px;
    color: var(--text-secondary);
    margin: 8px 0;
}

.wildlife-notice p:first-child {
    font-size: 18px;
    color: var(--plateau-blue);
    font-weight: 600;
}

/* ========================================
   响应式设计
   ======================================== */

@media (max-width: 768px) {
    .hero h1 {
        font-size: 32px;
    }
    
    .tagline {
        font-size: 18px;
    }
    
    .features {
        gap: 16px;
    }
    
    .feature {
        min-width: 100px;
        padding: 16px;
    }
    
    .btn-primary {
        padding: 16px 36px;
        font-size: 16px;
    }
    
    .question-card {
        padding: 32px 24px;
    }
    
    .question-text {
        font-size: 18px;
    }
    
    .option {
        padding: 14px 18px;
        font-size: 15px;
    }
    
    .result-card {
        padding: 32px 24px;
    }
    
    .animal-avatar {
        width: 120px;
        height: 120px;
        font-size: 60px;
    }
    
    .animal-name {
        font-size: 28px;
    }
    
    .navigation {
        flex-direction: column;
        gap: 12px;
    }
    
    .action-buttons {
        flex-direction: column;
    }
    
    .btn-secondary {
        width: 100%;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 10px;
    }
    
    .hero {
        padding: 20px 10px;
    }
    
    .hero h1 {
        font-size: 28px;
    }
    
    .features {
        flex-direction: column;
    }
    
    .question-card {
        padding: 24px 16px;
    }
    
    .question-text {
        font-size: 16px;
    }
    
    .result-card {
        padding: 24px 16px;
    }
}

/* ========================================
   动物主题色
   ======================================== */

.animal-wolf {
    background: linear-gradient(135deg, rgba(90, 106, 122, 0.2) 0%, rgba(45, 90, 135, 0.2) 100%);
}

.animal-gull {
    background: linear-gradient(135deg, rgba(139, 105, 20, 0.2) 0%, rgba(212, 168, 75, 0.2) 100%);
}

.animal-yak {
    background: linear-gradient(135deg, rgba(74, 55, 40, 0.2) 0%, rgba(139, 115, 85, 0.2) 100%);
}

.animal-vulture {
    background: linear-gradient(135deg, rgba(61, 61, 61, 0.2) 0%, rgba(90, 106, 122, 0.2) 100%);
}

.animal-fox {
    background: linear-gradient(135deg, rgba(196, 92, 38, 0.2) 0%, rgba(212, 168, 75, 0.2) 100%);
}

/* ========================================
   动画辅助类
   ======================================== */

.fade-in {
    animation: fadeIn var(--transition-normal);
}

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

.slide-up {
    animation: slideUp var(--transition-normal);
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}