/* ========================================
   悦途·文化集市 - 主样式表
   国潮美学 × 年轻化 × 轻互动
   ======================================== */

/* CSS Variables - 水墨山水风配色 - 高对比度 */
:root {
    /* 主色 - 更强的对比 */
    --color-ink-heavy: #0D0D0D;    /* 浓墨 - 主文字色 */
    --color-ink-medium: #3A3A3A;   /* 中墨 - 次要文字 */
    --color-ink-light: #6A6A6A;    /* 淡墨 - 辅助文字 */
    --color-ink-faint: #9A9A9A;    /* 极淡墨 - 占位符 */

    /* 背景色 - 纯白与浅灰 */
    --color-paper-white: #FAFAF8;   /* 宣纸白 - 主背景 */
    --color-paper-warm: #F0EDE6;    /* 暖宣纸 - 卡片背景 */
    --color-paper-aged: #E5DDD0;   /* 陈宣纸 - 装饰背景 */

    /* 强调色 - 更鲜艳 */
    --color-seal-red: #C84030;     /* 朱砂红 - 强调色 */
    --color-seal-light: #E8A5A5;    /* 浅朱砂 - 辅助强调 */

    /* 山水色 - 更鲜艳 */
    --color-stone-blue: #4A8A7A;    /* 石青 - 更鲜明 */
    --color-stone-green: #5A9A6A;   /* 石绿 - 更鲜明 */
    --color-mountain-gray: #7A8A8A; /* 山岚灰 - 雾霭色调 */

    /* 中性色 - 水墨层次 */
    --color-ink: #1A1A1A;          /* 主文字 - 浓墨 */
    --color-ink-light: #5A5A5A;    /* 次要文字 - 中墨 */
    --color-rice: #FAFAF8;         /* 背景色 - 宣纸白 */
    --color-cloud: #FFFFFF;        /* 卡片背景 - 纯白 */
    --color-card-bg: #F0EDE6;      /* 卡片浅底 - 暖宣纸 */

    /* 景区专属色 - 水墨层次 */
    --color-taishan: #4A8A7A;      /* 泰山 - 石青 */
    --color-kong: #5A9A6A;         /* 三孔 - 石绿 */
    --color-qingdao: #7A8A8A;      /* 青岛 - 山岚 */
    --color-penglai: #8A9A9A;      /* 蓬莱 - 海雾 */
    --color-weifang: #6A8A7A;      /* 潍坊 - 湿云 */
    --color-jinan: #5A7A6A;        /* 济南 - 泉城 */

    /* 字体 */
    --font-title: 'Noto Serif SC', 'Source Han Serif SC', serif;
    --font-body: -apple-system, BlinkMacSystemFont, 'HarmonyOS Sans', 'PingFang SC', sans-serif;

    /* 间距 */
    --space-xs: 4px;
    --space-sm: 8px;
    --space-md: 16px;
    --space-lg: 24px;
    --space-xl: 32px;

    /* 圆角 */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 28px;
    --radius-full: 9999px;

    /* 阴影 */
    --shadow-sm: 0 2px 8px rgba(42, 74, 98, 0.08);
    --shadow-md: 0 4px 16px rgba(42, 74, 98, 0.12);
    --shadow-lg: 0 8px 32px rgba(42, 74, 98, 0.16);
    --shadow-float: 0 12px 48px rgba(42, 74, 98, 0.2);

    /* 动画 */
    --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
    --ease-smooth: cubic-bezier(0.4, 0, 0.2, 1);
    --duration-fast: 200ms;
    --duration-normal: 300ms;
    --duration-slow: 500ms;
}

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

html {
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
}

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

/* App Container */
.app-container {
    max-width: 430px;
    margin: 0 auto;
    min-height: 100vh;
    position: relative;
    background: linear-gradient(180deg,
        #FFF5F8 0%,
        #F0F8FA 30%,
        #FAF8F5 60%,
        var(--color-rice) 100%);
    padding-bottom: calc(80px + env(safe-area-inset-bottom));
}

/* Page Container */
#page-container {
    min-height: calc(100vh - 80px);
    position: relative;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-title);
    font-weight: 600;
    line-height: 1.3;
}

h1 { font-size: 28px; }
h2 { font-size: 24px; }
h3 { font-size: 20px; }
h4 { font-size: 18px; }

p {
    font-size: 14px;
    color: var(--color-ink-light);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: 12px 24px;
    border-radius: var(--radius-full);
    font-size: 15px;
    font-weight: 500;
    border: none;
    cursor: pointer;
    transition: all var(--duration-normal) var(--ease-smooth);
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-tianqing) 0%, var(--color-danqing) 100%);
    color: var(--color-cloud);
    box-shadow: var(--shadow-md);
}

.btn-primary:active {
    transform: scale(0.96);
    box-shadow: var(--shadow-sm);
}

.btn-secondary {
    background: var(--color-cloud);
    color: var(--color-dailan);
    border: 2px solid var(--color-fenqing);
    box-shadow: var(--shadow-sm);
}

.btn-secondary:active {
    transform: scale(0.96);
    background: var(--color-fenqing);
}

.btn-outline {
    background: transparent;
    color: var(--color-dailan);
    border: 2px solid var(--color-dailan);
}

.btn-outline-heart {
    background: var(--color-cloud);
    color: var(--color-chihong);
    border: 2px solid var(--color-chihong);
}

.btn-large {
    padding: 16px 32px;
    font-size: 16px;
}

.btn-small {
    padding: 8px 16px;
    font-size: 13px;
}

/* Cards */
.card {
    background: var(--color-cloud);
    border-radius: var(--radius-lg);
    padding: var(--space-md);
    box-shadow: var(--shadow-sm);
    transition: all var(--duration-normal) var(--ease-smooth);
}

.card-elevated {
    box-shadow: var(--shadow-md);
}

/* Bottom Navigation */
.bottom-nav {
    position: fixed;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100%;
    max-width: 430px;
    background: var(--color-cloud);
    border-radius: var(--radius-xl) var(--radius-xl) 0 0;
    padding: var(--space-sm) var(--space-md) calc(var(--space-sm) + env(safe-area-inset-bottom));
    display: flex;
    justify-content: space-around;
    box-shadow: 0 -4px 20px rgba(42, 74, 98, 0.1);
    z-index: 100;
}

.nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
    padding: var(--space-sm) var(--space-md);
    background: none;
    border: none;
    cursor: pointer;
    transition: all var(--duration-normal) var(--ease-smooth);
}

.nav-icon {
    font-size: 22px;
    transition: transform var(--duration-normal) var(--ease-spring);
}

.nav-label {
    font-size: 11px;
    color: var(--color-ink-light);
    font-weight: 500;
}

.nav-item.active .nav-icon {
    transform: scale(1.15);
}

.nav-item.active .nav-label {
    color: var(--color-tianqing);
}

/* Floating Activity Button */
.activity-float-btn {
    position: fixed;
    top: 50%;
    left: 20px;
    transform: translateY(-50%);
    z-index: 90;
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-md);
    background: linear-gradient(135deg, rgba(200, 64, 48, 0.25) 0%, rgba(184, 59, 59, 0.25) 100%);
    backdrop-filter: blur(8px);
    border-radius: var(--radius-full);
    box-shadow: 0 8px 32px rgba(184, 59, 59, 0.15);
    cursor: pointer;
    transition: all var(--duration-normal) var(--ease-spring);
    animation: floatLeftPulse 2s ease-in-out infinite;
}

.activity-float-btn:hover {
    background: linear-gradient(135deg, rgba(200, 64, 48, 1) 0%, rgba(184, 59, 59, 1) 100%);
    box-shadow: 0 8px 32px rgba(184, 59, 59, 0.4);
}

.activity-float-btn:active {
    transform: translateY(-50%) scale(0.95);
}

@keyframes floatLeftPulse {
    0%, 100% {
        box-shadow: 0 8px 32px rgba(184, 59, 59, 0.25);
    }
    50% {
        box-shadow: 0 12px 48px rgba(184, 59, 59, 0.35);
    }
}

.activity-float-icon {
    width: 36px;
    height: 36px;
    background: rgba(255, 255, 255, 0.25);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    animation: iconBounce 1s ease-in-out infinite;
}

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

.activity-float-content {
    display: flex;
    flex-direction: column;
}

.activity-float-label {
    font-size: 11px;
    color: rgba(255, 255, 255, 0.95);
    font-weight: 500;
}

.activity-float-timer {
    font-size: 14px;
    color: #FFFFFF;
    font-weight: 700;
    font-variant-numeric: tabular-nums;
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
}

.activity-float-arrow {
    font-size: 16px;
    color: #FFFFFF;
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
}

/* Station Popup Modal */
.station-popup {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(26, 26, 46, 0.6);
    backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: all var(--duration-normal) var(--ease-smooth);
}

.station-popup.active {
    opacity: 1;
    visibility: visible;
}

.popup-content {
    background: var(--color-cloud);
    border-radius: var(--radius-xl);
    width: calc(100% - 48px);
    max-width: 340px);
    overflow: hidden;
    animation: popupSlideUp var(--duration-slow) var(--ease-spring);
}

@keyframes popupSlideUp {
    from {
        transform: translateY(100%) scale(0.9);
        opacity: 0;
    }
    to {
        transform: translateY(0) scale(1);
        opacity: 1;
    }
}

.popup-header {
    background: linear-gradient(135deg, var(--color-shaoxing) 0%, var(--color-danqing) 100%);
    padding: var(--space-md) var(--space-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.station-name {
    color: var(--color-cloud);
    font-family: var(--font-title);
    font-size: 20px;
    font-weight: 600;
}

.popup-close {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-full);
    background: rgba(255, 255, 255, 0.2);
    border: none;
    color: var(--color-cloud);
    font-size: 24px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
}

.popup-body {
    padding: var(--space-xl) var(--space-lg);
    text-align: center;
}

.station-mascot {
    font-size: 64px;
    margin-bottom: var(--space-md);
    animation: mascotBounce 1s var(--ease-spring);
}

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

.popup-desc {
    font-size: 16px;
    color: var(--color-ink);
    font-weight: 500;
    margin-bottom: var(--space-xs);
}

.popup-subtitle {
    font-size: 13px;
    color: var(--color-ink-light);
    margin-bottom: var(--space-lg);
}

.popup-enter-btn {
    width: 100%;
    padding: 14px;
    border-radius: var(--radius-full);
    background: linear-gradient(135deg, var(--color-tianqing) 0%, var(--color-danqing) 100%);
    color: var(--color-cloud);
    border: none;
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    box-shadow: var(--shadow-md);
}

/* Progress Bar */
.progress-bar {
    height: 6px;
    background: var(--color-rice);
    border-radius: var(--radius-full);
    overflow: hidden;
    position: relative;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--color-tianqing) 0%, var(--color-xiangye) 100%);
    border-radius: var(--radius-full);
    transition: width var(--duration-slow) var(--ease-smooth);
}

.progress-text {
    display: flex;
    justify-content: space-between;
    font-size: 12px;
    color: var(--color-ink-light);
    margin-top: var(--space-xs);
}

/* Scroll Container */
.scroll-container {
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
}

.scroll-container::-webkit-scrollbar {
    display: none;
}

.scroll-item {
    scroll-snap-align: start;
    flex-shrink: 0;
}

/* Decorative Elements */
.decorative-cloud {
    position: absolute;
    width: 120px;
    height: 60px;
    background: radial-gradient(ellipse at center, rgba(255,255,255,0.8) 0%, rgba(255,255,255,0) 70%);
    border-radius: 50%;
    pointer-events: none;
}

.decorative-mountain {
    position: absolute;
    bottom: 0;
    width: 100%;
    height: 80px;
    background: linear-gradient(135deg, var(--color-danqing) 0%, var(--color-tianqing) 100%);
    clip-path: polygon(0 100%, 20% 40%, 40% 70%, 60% 30%, 80% 60%, 100% 20%, 100% 100%);
    opacity: 0.1;
}

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

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

@keyframes scaleIn {
    from {
        transform: scale(0.8);
        opacity: 0;
    }
    to {
        transform: scale(1);
        opacity: 1;
    }
}

@keyframes shimmer {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}

.animate-fade-in {
    animation: fadeIn var(--duration-slow) var(--ease-smooth) forwards;
}

.animate-slide-up {
    animation: slideUp var(--duration-slow) var(--ease-smooth) forwards;
}

.animate-scale-in {
    animation: scaleIn var(--duration-slow) var(--ease-spring) forwards;
}

/* Staggered Animation Delays */
.delay-1 { animation-delay: 50ms; }
.delay-2 { animation-delay: 100ms; }
.delay-3 { animation-delay: 150ms; }
.delay-4 { animation-delay: 200ms; }
.delay-5 { animation-delay: 250ms; }
.delay-6 { animation-delay: 300ms; }

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Focus States */
button:focus-visible,
.btn:focus-visible {
    outline: 3px solid var(--color-tianqing);
    outline-offset: 2px;
}

/* Loading State */
.loading {
    position: relative;
    overflow: hidden;
}

.loading::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent 0%, rgba(255,255,255,0.4) 50%, transparent 100%);
    animation: shimmer 1.5s infinite;
}

/* ========================================
   打卡任务模态窗
   ======================================== */

.task-modal {
    position: fixed;
    inset: 0;
    background: rgba(26, 26, 26, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    animation: fadeIn 0.3s forwards;
}

.task-modal.active {
    opacity: 1;
}

.task-modal-content {
    background: var(--color-cloud);
    border-radius: var(--radius-xl);
    width: 90%;
    max-width: 380px;
    max-height: 85vh;
    overflow-y: auto;
    position: relative;
    box-shadow: var(--shadow-lg);
}

.task-modal-close {
    position: absolute;
    top: var(--space-md);
    right: var(--space-md);
    width: 32px;
    height: 32px;
    border: none;
    background: var(--color-rice);
    border-radius: 50%;
    font-size: 18px;
    cursor: pointer;
    z-index: 10;
}

.task-modal-header {
    text-align: center;
    padding: var(--space-xl) var(--space-lg) var(--space-lg);
    background: linear-gradient(135deg, var(--color-stone-blue) 0%, var(--color-paper-warm) 100%);
    border-radius: var(--radius-xl) var(--radius-xl) 0 0;
}

.task-modal-icon {
    font-size: 48px;
    margin-bottom: var(--space-sm);
}

.task-modal-title {
    font-size: 22px;
    font-weight: 600;
    color: var(--color-ink);
    margin: 0;
}

.task-modal-subtitle {
    font-size: 14px;
    color: var(--color-ink-light);
    margin: var(--space-sm) 0 0 0;
}

.task-modal-progress {
    padding: var(--space-md) var(--space-lg);
    background: var(--color-rice);
}

.task-progress-text {
    display: flex;
    justify-content: space-between;
    font-size: 14px;
    color: var(--color-ink-light);
    margin-bottom: var(--space-sm);
}

.task-progress-bar {
    height: 6px;
    background: var(--color-paper-aged);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.task-progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--color-stone-blue), var(--color-stone-green));
    border-radius: var(--radius-full);
    transition: width 0.3s;
}

.task-modal-instructions {
    padding: var(--space-lg);
}

.instructions-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--color-ink);
    margin: 0 0 var(--space-sm) 0;
}

.instructions-text {
    font-size: 14px;
    color: var(--color-ink-light);
    line-height: 1.6;
}

.task-targets {
    padding: 0 var(--space-lg);
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.task-target-item {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md);
    background: var(--color-rice);
    border-radius: var(--radius-md);
    border: 2px solid transparent;
}

.task-target-item.found {
    border-color: var(--color-stone-blue);
    background: rgba(91, 122, 138, 0.08);
}

.task-target-icon {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-paper-warm);
    border-radius: var(--radius-md);
    font-size: 20px;
}

.task-target-item.found .task-target-icon {
    background: var(--color-stone-blue);
    color: white;
}

.task-target-info h4 {
    font-size: 15px;
    font-weight: 600;
    color: var(--color-ink);
    margin: 0 0 4px 0;
}

.task-target-location {
    font-size: 13px;
    color: var(--color-ink-light);
}

.task-upload-section {
    padding: var(--space-lg);
}

.upload-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--color-ink);
    margin: 0 0 var(--space-md) 0;
}

.upload-area {
    border: 2px dashed var(--color-stone-green);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    text-align: center;
    cursor: pointer;
    background: var(--color-rice);
    transition: all var(--duration-normal);
}

.upload-area:active {
    background: rgba(107, 138, 107, 0.08);
}

.upload-icon {
    font-size: 48px;
    margin-bottom: var(--space-sm);
}

.upload-text {
    font-size: 16px;
    font-weight: 600;
    color: var(--color-ink);
    margin-bottom: var(--space-xs);
}

.upload-hint {
    font-size: 12px;
    color: var(--color-ink-light);
}

.upload-preview {
    margin-top: var(--space-md);
    border-radius: var(--radius-lg);
    overflow: hidden;
    position: relative;
}

.upload-preview img {
    width: 100%;
    height: auto;
    display: block;
}

.preview-remove {
    position: absolute;
    top: var(--space-sm);
    right: var(--space-sm);
    width: 28px;
    height: 28px;
    border: none;
    background: rgba(26, 26, 26, 0.7);
    color: white;
    border-radius: 50%;
    font-size: 16px;
    cursor: pointer;
}

.task-modal-actions {
    display: flex;
    gap: var(--space-md);
    padding: var(--space-lg);
    border-top: 1px solid var(--color-paper-aged);
}

.task-btn {
    flex: 1;
    padding: var(--space-md);
    border: none;
    border-radius: var(--radius-md);
    font-size: 15px;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--duration-normal);
}

.task-btn-cancel {
    background: var(--color-rice);
    color: var(--color-ink-light);
}

.task-btn-primary {
    background: linear-gradient(135deg, var(--color-seal-red) 0%, #8B2B2B 100%);
    color: white;
}

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

/* ========================================
   任务完成模态窗
   ======================================== */

.task-complete-modal {
    position: fixed;
    inset: 0;
    background: rgba(26, 26, 26, 0.85);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1100;
}

.task-complete-content {
    background: var(--color-cloud);
    border-radius: var(--radius-xl);
    padding: var(--space-xl);
    text-align: center;
    max-width: 300px;
    animation: scaleIn 0.4s var(--ease-spring);
}

.complete-animation {
    font-size: 64px;
    margin-bottom: var(--space-md);
    animation: bounce 0.6s var(--ease-spring);
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-20px); }
}

.complete-title {
    font-size: 24px;
    font-weight: 600;
    color: var(--color-ink);
    margin: 0 0 var(--space-sm) 0;
}

.complete-desc {
    font-size: 14px;
    color: var(--color-ink-light);
    margin: 0 0 var(--space-lg) 0;
}

.complete-reward {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-lg);
    background: linear-gradient(135deg, rgba(91, 122, 138, 0.12) 0%, rgba(107, 138, 107, 0.12) 100%);
    border-radius: var(--radius-full);
    margin: 0 auto var(--space-lg);
}

.reward-icon {
    font-size: 24px;
}

.reward-text {
    font-size: 14px;
    color: var(--color-ink);
}

.complete-btn {
    width: 100%;
    padding: var(--space-md);
    border: none;
    background: var(--color-ink);
    color: white;
    border-radius: var(--radius-md);
    font-size: 16px;
    cursor: pointer;
}

/* ========================================
   悦听模态窗
   ======================================== */

.yueting-modal {
    position: fixed;
    inset: 0;
    background: rgba(26, 26, 26, 0.85);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    animation: fadeIn 0.3s forwards;
}

.yueting-modal.active {
    opacity: 1;
}

.yueting-modal-content {
    background: var(--color-cloud);
    border-radius: var(--radius-xl);
    width: 90%;
    max-width: 400px;
    max-height: 85vh;
    overflow-y: auto;
    position: relative;
    box-shadow: var(--shadow-lg);
}

.yueting-modal-close {
    position: absolute;
    top: var(--space-md);
    right: var(--space-md);
    width: 32px;
    height: 32px;
    border: none;
    background: var(--color-rice);
    border-radius: 50%;
    font-size: 18px;
    cursor: pointer;
    z-index: 10;
}

.yueting-header {
    text-align: center;
    padding: var(--space-xl) var(--space-lg) var(--space-lg);
    background: linear-gradient(135deg, var(--color-stone-blue) 0%, var(--color-paper-warm) 100%);
    border-radius: var(--radius-xl) var(--radius-xl) 0 0;
}

.yueting-icon {
    font-size: 48px;
    margin-bottom: var(--space-sm);
}

.yueting-title {
    font-size: 20px;
    font-weight: 600;
    color: var(--color-ink);
    margin: 0;
}

.yueting-player {
    padding: var(--space-lg);
    background: var(--color-rice);
}

.player-cover {
    display: flex;
    justify-content: center;
    margin-bottom: var(--space-lg);
}

.cover-image {
    width: 120px;
    height: 120px;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 48px;
    box-shadow: var(--shadow-md);
}

.player-wave {
    display: flex;
    align-items: center;
    gap: 3px;
    margin-left: var(--space-lg);
}

.wave {
    width: 4px;
    height: 20px;
    background: var(--color-stone-blue);
    border-radius: var(--radius-full);
    animation: wave 1s ease-in-out infinite;
}

.wave:nth-child(2) { animation-delay: 0.1s; }
.wave:nth-child(3) { animation-delay: 0.2s; }
.wave:nth-child(4) { animation-delay: 0.3s; }
.wave:nth-child(5) { animation-delay: 0.4s; }

@keyframes wave {
    0%, 100% { height: 8px; }
    50% { height: 24px; }
}

.player-info {
    text-align: center;
}

.player-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--color-ink);
    margin: 0 0 var(--space-xs) 0;
}

.player-subtitle {
    font-size: 13px;
    color: var(--color-ink-light);
    margin: 0 0 var(--space-md) 0;
}

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

.control-btn {
    width: 48px;
    height: 48px;
    border: none;
    background: var(--color-ink);
    color: white;
    border-radius: 50%;
    font-size: 16px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
}

.control-btn.playing {
    background: var(--color-stone-blue);
}

.player-progress {
    flex: 1;
}

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

.progress-fill {
    height: 100%;
    background: var(--color-stone-blue);
    width: 0%;
    transition: width 0.1s linear;
}

.progress-time {
    font-size: 11px;
    color: var(--color-ink-light);
    margin-top: var(--space-xs);
    display: block;
}

.yueting-content {
    padding: var(--space-lg);
}

.content-section {
    margin-bottom: var(--space-lg);
}

.section-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--color-ink);
    margin: 0 0 var(--space-sm) 0;
}

.section-text {
    font-size: 14px;
    color: var(--color-ink-light);
    line-height: 1.8;
    margin: 0 0 var(--space-sm) 0;
}

.haizi-cards {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.haizi-card {
    padding: var(--space-md);
    background: var(--color-rice);
    border-radius: var(--radius-md);
    border-left: 3px solid var(--color-stone-blue);
}

.haizi-text {
    font-size: 16px;
    color: var(--color-ink);
    font-family: var(--font-title);
    margin: 0 0 var(--space-xs) 0;
}

.haizi-desc {
    font-size: 12px;
    color: var(--color-ink-light);
}

.quiz-question {
    font-size: 15px;
    color: var(--color-ink);
    margin: var(--space-sm) 0;
}

.quiz-options {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
    margin-top: var(--space-sm);
}

.quiz-option {
    width: 100%;
    padding: var(--space-sm) var(--space-md);
    border: 2px solid var(--color-paper-aged);
    background: var(--color-cloud);
    border-radius: var(--radius-md);
    font-size: 13px;
    text-align: left;
    cursor: pointer;
    transition: all var(--duration-normal);
}

.quiz-option:hover {
    border-color: var(--color-stone-blue);
}

.quiz-option.correct {
    background: var(--color-stone-green);
    color: white;
    border-color: var(--color-stone-green);
}

.quiz-option.wrong {
    background: var(--color-seal-red);
    color: white;
    border-color: var(--color-seal-red);
}

.answer-icon {
    margin-left: var(--space-xs);
}

.btn-spinner {
    display: inline-block;
    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); }
}