* { margin: 0; padding: 0; box-sizing: border-box; font-family: 'Segoe UI', 'Microsoft YaHei', sans-serif; }
body {
    background-color: #f8f7f3;
    color: #333;
    line-height: 1.6;
    max-width: 900px;
    margin: 0 auto;
}

.container {
    background-color: white;
    border-radius: 12px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.07);
    overflow: hidden;
    padding: 0;
}

.nav {text-align:left;margin-top:-20px;margin-bottom:20px}
.nav a {color:#FFFFE0;padding:0px 5px 0px 5px;text-decoration:none}
.next {text-align:center;padding-bottom:20px}
a {text-decoration:none;color:#2c5530;padding:10px}

header {
    background: linear-gradient(135deg, #2c5530 0%, #4a7c59 100%);
    color: white;
    padding: 35px 30px;
    text-align: center;
    position: relative;
}

.header-icon {
    font-size: 2.5rem;
    margin-bottom: 15px;
    opacity: 0.9;
}

h1 {
    font-size: 2rem;
    margin-bottom: 10px;
    font-weight: 600;
    letter-spacing: 0.5px;
}

.subtitle {
    font-size: 1.1rem;
    opacity: 0.85;
    font-weight: 300;
    margin-bottom: 10px;
}

.origin-section {
    padding: 25px 30px;
    background-color: #f9fbf9;
    border-bottom: 1px solid #e8f0e8;
}

.section-title {
    display: flex;
    align-items: center;
    color: #2c5530;
    font-size: 1.4rem;
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 2px solid #e8f0e8;
    font-weight:500;
}

.section-title i {
    margin-right: 12px;
    font-size: 1.3rem;
}

.original-text {
    font-size: 1.25rem;
    line-height: 1.8;
    padding: 20px;
    border-radius: 10px;
    border: 1px solid #e0e8e0;
    background-color: white;
    margin-bottom: 15px;
    font-weight: 500;
}
li,p {margin-top:10px;margin-bottom: 10px;}
.red {color:red;font-weight:500}

.translation {
    font-size: 1.1rem;
    padding: 20px;
    background-color: white;
    border-radius: 10px;
    border: 1px solid #e0e8e0;
    line-height: 1.7;
}

.vocab-section {
    padding: 25px 30px;
    background-color: #f9fbf9;
}

.pinyin {
    color: #d35400;
    font-weight: 600;
    font-size: 1.1rem;
}

.explanation-section {
    padding: 25px 30px;
    background-color: #f9fbf9;
    border-top: 1px solid #e8f0e8;
    border-bottom: 1px solid #e8f0e8;
}

.sentence-block {
    margin-bottom: 30px;
    padding: 20px;
    background-color: white;
    border-radius: 10px;
    box-shadow: 0 3px 10px rgba(0,0,0,0.05);
}

.sentence-title {
    color: #2c5530;
    font-size: 1.2rem;
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    font-weight:500;
}

.sentence-title i {
    color: #4a7c59;
    margin-right: 10px;
}

.example-box {
    padding: 15px;
    border-radius: 8px;
    margin-top: 5px;
}

.example-title {
    font-weight: 600;
    color: #2c5530;
    margin-bottom: 4px;
    display: flex;
    align-items: center;
}

.example-title i {
    margin-right: 8px;
    color: #5d9cec;
}

.summary-section {
    padding: 25px 30px;
    background-color: #f9fbf9;
    border: 1px solid #e0e8e0;
}

.insights-section {
    padding: 25px 30px;
    background-color: #f9fbf9;
    border-top: 1px solid #e8f0e8;
}

.insight-box {
    padding: 20px;
    background-color: white;
    border-radius: 10px;
    margin-bottom: 20px;
    box-shadow: 0 3px 10px rgba(0,0,0,0.05);
}

.insight-title {
    color: #2c5530;
    font-size: 1.2rem;
    margin-bottom: 15px;
    display: flex;
    align-items: center;
}

.insight-title i {
    color: #4a7c59;
    margin-right: 10px;
}

.insight-list {
    padding-left: 25px;
}

.insight-list li {
    margin-bottom: 10px;
    line-height: 1.6;
}

.final-thought {
    padding: 25px 30px;
    border-top: 1px solid #e0e8e0;
    background-color: #f9fbf9;
}

.final-text {
    line-height: 1.7;
    color: #2c5530;
    font-style: italic;
    margin-bottom: 20px;
}
.highlight {
            padding: 2px 4px;
            border-radius: 3px;
            font-weight: 500;
        }
.annotation {
            padding: 15px;
            border-radius: 8px;
            border: 1px solid #e0e8e0;
            background-color: white;         
	    margin-bottom:20px;
        }

footer {
    text-align: center;
    padding: 25px 30px;
    color: #666;
    font-size: 0.9rem;
    background-color: #f8f7f3;
    border-top: 1px solid #eee;
    border-radius: 0 0 12px 12px;
}

@media (max-width: 768px) {
    body {
        padding: 0px;
    }
    header {
    padding: 25px 10px;
}
    .container {
    border-radius: 1px;
    }
    
    .origin-section, .vocab-section, .explanation-section, 
    .summary-section, .insights-section, .final-thought {
        padding: 20px 15px;
    }
    
    h1 {
        font-size: 1.7rem;
    }
    
    .original-text {
        font-size: 1.15rem;
        padding: 15px;
    }    
}

@media (max-width: 480px) {
    h1 {
        font-size: 1.5rem;
    }
    
    .section-title {
        font-size: 1.2rem;
    }
}