/* ========================================
   爱心天使 2025公益游戏进行曲 - 企业站样式
   ======================================== */

/* CSS Variables */
:root {
    /* 主色调 - 温暖的橙红色系 */
    --primary: #FF6B6B;
    --primary-dark: #EE5A5A;
    --primary-light: #FF8E8E;
    
    /* 强调色 - 金黄色系 */
    --accent: #FFB347;
    --accent-dark: #FFA726;
    --accent-light: #FFCC80;
    
    /* 辅助色 */
    --coral: #FF7F7F;
    --peach: #FFDAB9;
    --rose: #FFB6C1;
    --lavender: #E6E6FA;
    
    /* 中性色 */
    --text-dark: #2D3436;
    --text-body: #4A4A4A;
    --text-muted: #7F8C8D;
    --text-light: #FFFFFF;
    
    /* 背景色 */
    --bg-cream: #FFF9F5;
    --bg-warm: #FFF5EE;
    --bg-light: #FFFAF6;
    --bg-gradient: linear-gradient(135deg, #FFF5EE 0%, #FFE4E1 50%, #FFEFD5 100%);
    
    /* 阴影 */
    --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);
    --shadow-card: 0 10px 40px rgba(0, 0, 0, 0.08);
    
    /* 字体 */
    --font-display: 'Ma Shan Zheng', 'Noto Serif SC', 'SimSun', 'STSong', serif;
    --font-body: 'Noto Serif SC', 'PingFang SC', 'Microsoft YaHei', 'SimSun', sans-serif;
    
    /* 圆角 */
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-xl: 40px;
    
    /* 过渡 */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

body {
    font-family: var(--font-body);
    color: var(--text-body);
    background: var(--bg-cream);
    line-height: 1.8;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ========================================
   导航栏
   ======================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    font-family: var(--font-display);
    font-size: 1.5rem;
    color: var(--primary);
    font-weight: 600;
}

.logo-icon {
    font-size: 1.8rem;
    animation: heartbeat 1.5s ease-in-out infinite;
}

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

.nav-links {
    display: flex;
    list-style: none;
    gap: 40px;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-body);
    font-weight: 500;
    font-size: 0.95rem;
    position: relative;
    padding: 8px 0;
    transition: var(--transition);
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    transition: var(--transition);
}

.nav-links a:hover {
    color: var(--primary);
}

.nav-links a:hover::after {
    width: 100%;
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.mobile-menu-btn span {
    display: block;
    width: 25px;
    height: 2px;
    background: var(--text-dark);
    transition: var(--transition);
}

/* ========================================
   英雄区域
   ======================================== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    background: linear-gradient(135deg, 
        #FFF5EE 0%, 
        #FFE4E1 25%,
        #FFEFD5 50%,
        #FFE4E1 75%,
        #FFF5EE 100%);
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    overflow: hidden;
}

.hero-bg::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 80%;
    height: 150%;
    background: radial-gradient(ellipse, rgba(255, 179, 71, 0.15) 0%, transparent 70%);
    animation: pulse 8s ease-in-out infinite;
}

.hero-bg::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -20%;
    width: 70%;
    height: 100%;
    background: radial-gradient(ellipse, rgba(255, 107, 107, 0.1) 0%, transparent 70%);
    animation: pulse 10s ease-in-out infinite reverse;
}

@keyframes pulse {
    0%, 100% { opacity: 0.5; transform: scale(1); }
    50% { opacity: 1; transform: scale(1.1); }
}

.floating-hearts {
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.heart {
    position: absolute;
    bottom: -50px;
    left: var(--x);
    font-size: 2rem;
    opacity: 0;
    animation: floatUp 8s ease-in-out infinite;
    animation-delay: var(--delay);
}

@keyframes floatUp {
    0% {
        opacity: 0;
        transform: translateY(0) rotate(0deg);
    }
    10% {
        opacity: 0.8;
    }
    90% {
        opacity: 0.8;
    }
    100% {
        opacity: 0;
        transform: translateY(-100vh) rotate(360deg);
    }
}

.hero-content {
    text-align: center;
    position: relative;
    z-index: 10;
    padding: 0 24px;
}

.hero-badge {
    display: inline-block;
    padding: 10px 28px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    color: white;
    font-size: 0.9rem;
    font-weight: 600;
    border-radius: 50px;
    margin-bottom: 30px;
    box-shadow: 0 4px 20px rgba(255, 107, 107, 0.4);
    animation: fadeInDown 0.8s ease-out;
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 8vw, 5rem);
    line-height: 1.2;
    margin-bottom: 20px;
    animation: fadeInUp 1s ease-out 0.2s both;
}

.title-line {
    display: block;
    color: var(--text-dark);
}

.title-line.accent {
    background: linear-gradient(135deg, var(--primary), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.2rem;
    color: var(--text-muted);
    margin-bottom: 40px;
    animation: fadeInUp 1s ease-out 0.4s both;
}

.hero-cta {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeInUp 1s ease-out 0.6s both;
}

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

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

/* 按钮 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 36px;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: 50px;
    transition: var(--transition);
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    box-shadow: 0 4px 20px rgba(255, 107, 107, 0.4);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(255, 107, 107, 0.5);
}

.btn-secondary {
    background: white;
    color: var(--primary);
    border: 2px solid var(--primary);
}

.btn-secondary:hover {
    background: var(--primary);
    color: white;
    transform: translateY(-3px);
}

.btn-large {
    padding: 18px 50px;
    font-size: 1.1rem;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    color: white;
    box-shadow: 0 6px 30px rgba(255, 107, 107, 0.4);
}

.btn-large:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 40px rgba(255, 107, 107, 0.5);
}

/* 滚动指示器 */
.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    animation: fadeInUp 1s ease-out 1s both;
}

.mouse {
    width: 26px;
    height: 42px;
    border: 2px solid var(--text-muted);
    border-radius: 20px;
    position: relative;
}

.mouse::before {
    content: '';
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 8px;
    background: var(--primary);
    border-radius: 2px;
    animation: scroll 2s ease-in-out infinite;
}

@keyframes scroll {
    0%, 100% { opacity: 1; transform: translateX(-50%) translateY(0); }
    50% { opacity: 0.3; transform: translateX(-50%) translateY(10px); }
}

.arrow {
    color: var(--text-muted);
    font-size: 1.2rem;
    animation: bounce 2s ease-in-out infinite;
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(5px); }
}

/* ========================================
   发起者说 - 诗歌区域
   ======================================== */
.poem-section {
    padding: 120px 0;
    background: linear-gradient(180deg, var(--bg-warm) 0%, var(--bg-cream) 100%);
}

.poem-card {
    max-width: 800px;
    margin: 0 auto;
    background: white;
    padding: 60px 80px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-card);
    position: relative;
    overflow: hidden;
}

.poem-card::before {
    content: '"';
    position: absolute;
    top: 20px;
    left: 30px;
    font-size: 8rem;
    font-family: Georgia, serif;
    color: var(--peach);
    opacity: 0.5;
    line-height: 1;
}

.section-label {
    display: inline-block;
    font-family: var(--font-display);
    font-size: 1rem;
    color: var(--primary);
    background: linear-gradient(135deg, rgba(255, 107, 107, 0.1), rgba(255, 179, 71, 0.1));
    padding: 8px 24px;
    border-radius: 50px;
    margin-bottom: 30px;
}

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

.poem-line {
    font-family: var(--font-display);
    font-size: 1.15rem;
    color: var(--text-body);
    margin-bottom: 12px;
    text-align: center;
    transition: var(--transition);
}

.poem-line.highlight {
    color: var(--primary);
    font-weight: 600;
}

.poem-line.large {
    font-size: 1.3rem;
    margin-top: 8px;
}

.poem-line.accent {
    background: linear-gradient(135deg, var(--primary), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 700;
}

.poem-divider {
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    margin: 30px auto;
    border-radius: 2px;
}

/* ========================================
   项目介绍
   ======================================== */
.intro-section {
    padding: 100px 0;
    background: var(--bg-cream);
}

.intro-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.section-title {
    font-family: var(--font-display);
    font-size: 2.5rem;
    color: var(--text-dark);
    margin-bottom: 24px;
    position: relative;
}

.intro-desc {
    font-size: 1.1rem;
    color: var(--text-body);
    margin-bottom: 20px;
    line-height: 1.9;
}

.features-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    margin-top: 30px;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 20px;
    background: white;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.feature-item:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

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

.intro-visual {
    display: flex;
    justify-content: center;
}

.visual-card {
    background: linear-gradient(135deg, var(--primary), var(--accent));
    padding: 60px 50px;
    border-radius: var(--radius-xl);
    text-align: center;
    color: white;
    box-shadow: var(--shadow-lg);
    position: relative;
    overflow: hidden;
}

.visual-card::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.2) 0%, transparent 70%);
}

.visual-icon {
    font-size: 5rem;
    margin-bottom: 20px;
    display: block;
}

.visual-text {
    font-size: 1.3rem;
    margin-bottom: 15px;
    font-weight: 500;
}

.visual-cta {
    font-size: 1.5rem;
    font-family: var(--font-display);
    font-weight: 600;
}

/* ========================================
   城市安家计划
   ======================================== */
.plan-section {
    padding: 120px 0;
    background: linear-gradient(135deg, #2D3436 0%, #1a1a2e 100%);
    color: white;
    position: relative;
    overflow: hidden;
}

.plan-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 200px;
    background: linear-gradient(180deg, var(--bg-cream) 0%, transparent 100%);
    pointer-events: none;
}

.plan-header {
    text-align: center;
    margin-bottom: 60px;
    position: relative;
    z-index: 1;
}

.plan-badge {
    display: inline-block;
    padding: 8px 24px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    font-size: 0.85rem;
    font-weight: 600;
    border-radius: 50px;
    margin-bottom: 20px;
}

.plan-title {
    font-family: var(--font-display);
    font-size: 3rem;
    background: linear-gradient(135deg, #FFB347, #FF6B6B);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

.plan-card {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    padding: 50px;
    margin-bottom: 50px;
    display: flex;
    align-items: flex-start;
    gap: 30px;
}

.plan-icon {
    font-size: 4rem;
    flex-shrink: 0;
}

.plan-desc {
    font-size: 1.15rem;
    line-height: 1.9;
    color: rgba(255, 255, 255, 0.9);
}

.plan-highlights {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.highlight-item {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    padding: 40px 30px;
    text-align: center;
    transition: var(--transition);
}

.highlight-item:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-5px);
}

.highlight-icon {
    font-size: 3rem;
    margin-bottom: 20px;
    display: block;
}

.highlight-item h3 {
    font-family: var(--font-display);
    font-size: 1.3rem;
    margin-bottom: 12px;
    color: var(--accent);
}

.highlight-item p {
    font-size: 0.95rem;
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.7;
}

/* ========================================
   活动章节
   ======================================== */
.chapters-section {
    padding: 120px 0;
    background: var(--bg-warm);
}

.section-header {
    text-align: center;
    margin-bottom: 70px;
}

.section-subtitle {
    font-size: 1.2rem;
    color: var(--text-muted);
    margin-top: 12px;
}

/* 序曲 */
.chapter.prelude {
    background: white;
    border-radius: var(--radius-lg);
    padding: 50px;
    margin-bottom: 60px;
    box-shadow: var(--shadow-card);
    border-left: 5px solid var(--primary);
}

.chapter-header {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-bottom: 30px;
}

.chapter-label {
    display: inline-block;
    padding: 8px 20px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    color: white;
    font-size: 0.9rem;
    font-weight: 600;
    border-radius: 50px;
}

.chapter-title {
    font-family: var(--font-display);
    font-size: 1.8rem;
    color: var(--text-dark);
}

.chapter-content h4 {
    font-size: 1.1rem;
    color: var(--text-dark);
    margin-bottom: 20px;
}

.play-rules {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.play-rules li {
    display: flex;
    gap: 20px;
    align-items: flex-start;
}

.rule-number {
    flex-shrink: 0;
    width: 45px;
    height: 45px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    color: white;
    font-size: 0.9rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
}

.rule-content {
    font-size: 1rem;
    line-height: 1.8;
    color: var(--text-body);
    padding-top: 8px;
}

.rule-content strong {
    color: var(--primary);
}

/* 主题曲章节网格 */
.chapters-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.chapter-card {
    background: white;
    border-radius: var(--radius-lg);
    padding: 40px 35px;
    box-shadow: var(--shadow-card);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.chapter-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    opacity: 0;
    transition: var(--transition);
}

.chapter-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.chapter-card:hover::before {
    opacity: 1;
}

.card-icon {
    font-size: 3rem;
    margin-bottom: 20px;
    display: block;
}

.card-label {
    display: inline-block;
    font-size: 0.8rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 8px;
}

.card-title {
    font-family: var(--font-display);
    font-size: 1.4rem;
    color: var(--text-dark);
    margin-bottom: 6px;
}

.card-subtitle {
    font-size: 1rem;
    color: var(--primary);
    font-style: italic;
    margin-bottom: 15px;
}

.card-divider {
    width: 40px;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    border-radius: 2px;
    margin-bottom: 15px;
}

.card-desc {
    font-size: 0.95rem;
    color: var(--text-body);
    line-height: 1.7;
    margin-bottom: 20px;
}

.card-tag {
    display: inline-block;
    padding: 6px 16px;
    background: linear-gradient(135deg, rgba(255, 107, 107, 0.1), rgba(255, 179, 71, 0.1));
    color: var(--primary);
    font-size: 0.85rem;
    font-weight: 600;
    border-radius: 20px;
}

/* ========================================
   结尾曲
   ======================================== */
.finale-section {
    padding: 120px 0;
    background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.finale-section::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -25%;
    width: 80%;
    height: 150%;
    background: radial-gradient(ellipse, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
}

.finale-content {
    position: relative;
    z-index: 1;
    color: white;
}

.finale-label {
    display: inline-block;
    padding: 8px 24px;
    background: rgba(255, 255, 255, 0.2);
    font-size: 0.9rem;
    font-weight: 600;
    border-radius: 50px;
    margin-bottom: 20px;
}

.finale-title {
    font-family: var(--font-display);
    font-size: 3rem;
    margin-bottom: 30px;
}

.finale-desc {
    max-width: 700px;
    margin: 0 auto 40px;
    font-size: 1.15rem;
    line-height: 1.9;
    opacity: 0.95;
}

.finale-desc strong {
    color: var(--accent-light);
}

.finale-highlights {
    display: flex;
    justify-content: center;
    gap: 50px;
    flex-wrap: wrap;
}

.finale-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
}

.finale-icon {
    font-size: 3rem;
}

.finale-item span:last-child {
    font-size: 1.1rem;
    font-weight: 500;
}

/* ========================================
   号召行动
   ======================================== */
.cta-section {
    padding: 100px 0;
    background: var(--bg-cream);
    text-align: center;
}

.cta-content {
    max-width: 600px;
    margin: 0 auto;
}

.cta-title {
    font-family: var(--font-display);
    font-size: 2.2rem;
    color: var(--text-dark);
    margin-bottom: 16px;
}

.cta-desc {
    font-size: 1.15rem;
    color: var(--text-muted);
    margin-bottom: 35px;
}

/* ========================================
   页脚
   ======================================== */
.footer {
    padding: 50px 0;
    background: var(--text-dark);
    color: white;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

.footer-logo {
    font-family: var(--font-display);
    font-size: 1.5rem;
}

.footer-tagline {
    font-size: 0.9rem;
    opacity: 0.7;
    margin-top: 5px;
}

.footer-info {
    text-align: right;
}

.footer-info p {
    font-size: 0.9rem;
    opacity: 0.7;
    margin-bottom: 5px;
}

/* ========================================
   响应式设计
   ======================================== */
@media (max-width: 1024px) {
    .intro-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .plan-highlights {
        grid-template-columns: 1fr;
    }
    
    .chapters-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 70px;
        left: 0;
        right: 0;
        background: white;
        flex-direction: column;
        padding: 20px;
        gap: 10px;
        box-shadow: var(--shadow-md);
    }
    
    .nav-links.active {
        display: flex;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-cta {
        flex-direction: column;
        align-items: center;
    }
    
    .poem-card {
        padding: 40px 30px;
    }
    
    .features-list {
        grid-template-columns: 1fr;
    }
    
    .plan-card {
        flex-direction: column;
        text-align: center;
        padding: 40px 30px;
    }
    
    .chapter.prelude {
        padding: 30px 25px;
    }
    
    .chapters-grid {
        grid-template-columns: 1fr;
    }
    
    .finale-title {
        font-size: 2rem;
    }
    
    .finale-highlights {
        gap: 30px;
    }
    
    .footer-content {
        flex-direction: column;
        text-align: center;
    }
    
    .footer-info {
        text-align: center;
    }
}

@media (max-width: 480px) {
    .hero-badge {
        font-size: 0.8rem;
        padding: 8px 20px;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .section-title {
        font-size: 1.8rem;
    }
    
    .plan-title {
        font-size: 2rem;
    }
    
    .chapter-card {
        padding: 30px 25px;
    }
    
    .play-rules li {
        flex-direction: column;
        gap: 10px;
    }
}