/* 禅意主题配色 */
:root {
    --ink-black: #1a1a1a;
    --ink-light: #4a4a4a;
    --paper-white: #faf8f5;
    --paper-aged: #f5f0e8;
    --warm-gray: #8b8680;
    --sage-green: #4a5d4a;
    --terracotta: #c4a77d;
    --shadow: rgba(26, 26, 26, 0.08);
}

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

body {
    font-family: 'Noto Serif SC', serif;
    background-color: var(--paper-white);
    color: var(--ink-black);
    line-height: 1.8;
    min-height: 100vh;
}

/* 页面右上角标识 */
.page-header {
    position: fixed;
    top: 20px;
    right: 30px;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.9);
    padding: 8px 16px;
    border-radius: 4px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.page-header-text {
    font-size: 13px;
    color: var(--sage-green);
    font-weight: 600;
    letter-spacing: 1px;
}

/* 页面过渡动画 */
.page {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 40px 20px;
    animation: fadeIn 0.8s ease-out;
}

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

/* ========== 入口页样式 ========== */
.intro-page {
    text-align: center;
    max-width: 700px;
}

.ink-circle {
    width: 120px;
    height: 120px;
    margin: 0 auto 40px;
    background: radial-gradient(circle, var(--ink-black) 0%, transparent 70%);
    border-radius: 50%;
    opacity: 0.1;
    animation: inkSpread 2s ease-out infinite;
}

@keyframes inkSpread {
    0% {
        transform: scale(0.8);
        opacity: 0.1;
    }
    50% {
        transform: scale(1);
        opacity: 0.15;
    }
    100% {
        transform: scale(0.8);
        opacity: 0.1;
    }
}

.title-zh {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--ink-black);
    letter-spacing: 4px;
}

.title-en {
    font-size: 14px;
    color: var(--warm-gray);
    text-transform: uppercase;
    letter-spacing: 3px;
    margin-bottom: 60px;
}

.quote-box {
    background: var(--paper-aged);
    padding: 30px;
    border-left: 4px solid var(--sage-green);
    margin-bottom: 60px;
    text-align: left;
}

.quote-zh {
    font-size: 18px;
    line-height: 1.8;
    margin-bottom: 15px;
    color: var(--ink-black);
}

.quote-en {
    font-size: 13px;
    color: var(--warm-gray);
    font-style: italic;
    line-height: 1.6;
}

.quote-author {
    margin-top: 20px;
    font-size: 12px;
    color: var(--warm-gray);
    text-align: right;
}

/* 水墨按钮 */
.ink-btn {
    position: relative;
    padding: 18px 56px;
    border: 2px solid var(--ink-black);
    background: transparent;
    color: var(--ink-black);
    font-family: 'Noto Serif SC', serif;
    font-size: 16px;
    cursor: pointer;
    overflow: hidden;
    transition: all 0.5s ease;
    letter-spacing: 2px;
}

.ink-btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: var(--ink-black);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.6s ease, height 0.6s ease;
    z-index: -1;
}

.ink-btn:hover::before {
    width: 300%;
    height: 300%;
}

.ink-btn:hover {
    color: var(--paper-white);
}

/* ========== 过渡页样式 ========== */
.transition-page {
    text-align: center;
    max-width: 700px;
}

.progress-indicator {
    position: absolute;
    top: 40px;
    font-size: 13px;
    color: var(--warm-gray);
    letter-spacing: 2px;
}

.dim-title {
    font-size: 32px;
    margin-bottom: 8px;
    color: var(--ink-black);
    letter-spacing: 2px;
}

.dim-title-en {
    font-size: 13px;
    color: var(--warm-gray);
    text-transform: uppercase;
    letter-spacing: 3px;
    margin-bottom: 50px;
}

.dim-quote {
    background: white;
    padding: 40px;
    border-radius: 8px;
    box-shadow: 0 4px 20px var(--shadow);
    margin-bottom: 40px;
}

.dim-quote .quote-zh {
    font-size: 20px;
    margin-bottom: 20px;
}

.countdown-hint {
    font-size: 14px;
    color: var(--warm-gray);
    margin: 30px 0;
    min-height: 20px;
    letter-spacing: 1px;
}

.countdown-hint.ready {
    color: var(--sage-green);
    font-weight: 600;
}

.continue-btn {
    padding: 16px 48px;
    border: 2px solid var(--ink-black);
    background: var(--ink-black);
    color: var(--paper-white);
    font-family: 'Noto Serif SC', serif;
    font-size: 15px;
    cursor: pointer;
    transition: all 0.3s ease;
    opacity: 0.4;
    pointer-events: none;
    letter-spacing: 2px;
}

.continue-btn.active {
    opacity: 1;
    pointer-events: auto;
}

.continue-btn:hover {
    background: transparent;
    color: var(--ink-black);
}

/* ========== 答题页样式 ========== */
.assessment-page {
    width: 100%;
    max-width: 800px;
    padding: 40px 20px;
}

.progress-bar-container {
    margin-bottom: 50px;
}

.progress-bar {
    height: 4px;
    background: var(--paper-aged);
    border-radius: 2px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: var(--sage-green);
    transition: width 0.5s ease;
}

.progress-text {
    text-align: right;
    font-size: 12px;
    color: var(--warm-gray);
    margin-top: 10px;
    letter-spacing: 1px;
}

.question-card {
    background: white;
    padding: 40px;
    border-radius: 8px;
    box-shadow: 0 4px 20px var(--shadow);
}

.question-number {
    font-size: 12px;
    color: var(--warm-gray);
    margin-bottom: 20px;
    letter-spacing: 2px;
}

.question-text {
    font-size: 18px;
    line-height: 1.8;
    margin-bottom: 40px;
    color: var(--ink-black);
}

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

.option-btn {
    display: flex;
    align-items: center;
    padding: 18px 20px;
    border: 1px solid #e5e5e5;
    background: white;
    cursor: pointer;
    transition: all 0.3s ease;
    text-align: left;
    border-radius: 4px;
}

.option-btn:hover {
    border-color: var(--sage-green);
    background: var(--paper-aged);
    transform: translateX(5px);
}

.option-value {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--paper-aged);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 16px;
    font-size: 13px;
    color: var(--ink-light);
    transition: all 0.3s ease;
    flex-shrink: 0;
}

.option-btn:hover .option-value {
    background: var(--sage-green);
    color: white;
}

.option-text {
    flex: 1;
    font-size: 15px;
    color: var(--ink-light);
    line-height: 1.5;
}

.navigation {
    display: flex;
    justify-content: space-between;
    margin-top: 30px;
}

.nav-btn {
    padding: 12px 24px;
    border: 1px solid #ccc;
    background: white;
    color: var(--ink-light);
    font-family: 'Noto Serif SC', serif;
    font-size: 13px;
    cursor: pointer;
    transition: all 0.3s ease;
    border-radius: 4px;
}

.nav-btn:hover {
    border-color: var(--sage-green);
    color: var(--sage-green);
}

.nav-btn:disabled {
    opacity: 0.3;
    cursor: not-allowed;
}

/* ========== 完成页样式 ========== */
.complete-page {
    text-align: center;
    max-width: 800px;
    padding: 40px 20px;
}

.complete-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 30px;
    background: var(--sage-green);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 36px;
}

.complete-title {
    font-size: 28px;
    margin-bottom: 10px;
    color: var(--ink-black);
}

.complete-subtitle {
    font-size: 14px;
    color: var(--warm-gray);
    margin-bottom: 40px;
}

.result-card {
    background: white;
    padding: 40px;
    border-radius: 8px;
    box-shadow: 0 4px 20px var(--shadow);
    margin-bottom: 30px;
}

.score-display {
    margin-bottom: 30px;
}

.score-main {
    font-size: 48px;
    font-weight: 700;
    color: var(--sage-green);
}

.score-total {
    font-size: 18px;
    color: var(--warm-gray);
}

.level-badge {
    display: inline-block;
    padding: 10px 30px;
    background: var(--paper-aged);
    border-radius: 30px;
    margin-bottom: 20px;
}

.level-name {
    font-size: 20px;
    font-weight: 600;
    color: var(--ink-black);
}

.level-icon {
    font-size: 24px;
    margin-right: 10px;
}

.level-desc {
    font-size: 14px;
    color: var(--ink-light);
    line-height: 1.6;
    max-width: 500px;
    margin: 0 auto;
}

.chart-container {
    width: 100%;
    max-width: 500px;
    margin: 30px auto;
}

.download-btn {
    display: inline-block;
    padding: 16px 40px;
    background: var(--sage-green);
    color: white;
    text-decoration: none;
    border-radius: 4px;
    font-size: 15px;
    transition: all 0.3s ease;
    letter-spacing: 1px;
}

.download-btn:hover {
    background: var(--ink-black);
    transform: translateY(-2px);
}

.restart-btn {
    display: inline-block;
    margin-top: 20px;
    padding: 12px 30px;
    border: 1px solid #ccc;
    color: var(--warm-gray);
    text-decoration: none;
    border-radius: 4px;
    font-size: 13px;
    transition: all 0.3s ease;
}

.restart-btn:hover {
    border-color: var(--sage-green);
    color: var(--sage-green);
}

/* ========== 加载动画 ========== */
.loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
}

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--paper-aged);
    border-top-color: var(--sage-green);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: 20px;
}

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

.loading-text {
    font-size: 14px;
    color: var(--warm-gray);
    letter-spacing: 1px;
}

/* ========== 移动端适配 ========== */
@media (max-width: 768px) {
    .title-zh {
        font-size: 28px;
    }
    
    .quote-box {
        padding: 20px;
    }
    
    .quote-zh {
        font-size: 16px;
    }
    
    .dim-title {
        font-size: 24px;
    }
    
    .dim-quote {
        padding: 25px;
    }
    
    .question-card {
        padding: 25px;
    }
    
    .question-text {
        font-size: 16px;
    }
    
    .option-btn {
        padding: 15px;
    }
    
    .score-main {
        font-size: 36px;
    }
    
    .result-card {
        padding: 25px;
    }
}

/* ========== 隐藏类 ========== */
.hidden {
    display: none !important;
}

.fade-in {
    animation: fadeIn 0.6s ease-out;
}

/* ========== 暗黑模式 ========== */
[data-theme="dark"] {
    --ink-black: #e0e0e0;
    --ink-light: #b0b0b0;
    --paper-white: #1a1a1a;
    --paper-aged: #2d2d2d;
    --warm-gray: #888888;
    --sage-green: #6b8e6b;
    --shadow: rgba(0, 0, 0, 0.3);
}

[data-theme="dark"] body {
    background-color: var(--paper-white);
    color: var(--ink-black);
}

[data-theme="dark"] .page-header {
    background: rgba(45, 45, 45, 0.9);
}

[data-theme="dark"] .quote-box,
[data-theme="dark"] .dim-quote,
[data-theme="dark"] .question-card,
[data-theme="dark"] .result-card {
    background: #2d2d2d;
    border-color: var(--sage-green);
}

[data-theme="dark"] .option-btn {
    background: #2d2d2d;
    border-color: #444;
}

[data-theme="dark"] .option-btn:hover {
    background: #3d3d3d;
    border-color: var(--sage-green);
}

[data-theme="dark"] .option-value {
    background: #3d3d3d;
}

[data-theme="dark"] .nav-btn {
    background: #2d2d2d;
    border-color: #444;
    color: var(--ink-light);
}

/* 暗黑模式切换按钮 */
.theme-toggle {
    position: fixed;
    top: 20px;
    left: 30px;
    z-index: 1001;
    background: rgba(255, 255, 255, 0.9);
    border: none;
    padding: 10px 15px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 20px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.theme-toggle:hover {
    transform: scale(1.1);
}

[data-theme="dark"] .theme-toggle {
    background: rgba(45, 45, 45, 0.9);
}