@charset "utf-8";
/* CSS Document */
body {
    font-family: "Helvetica Neue", Helvetica, Arial, "Microsoft JhengHei", sans-serif;
    line-height: 1.8;
    color: #333;
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    background-color: #f9f9f9;
}
article {
    background: #fff;
    padding: 40px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    border-radius: 8px;
}
h1 {
    color: #2c3e50;
    font-size: 2.2rem;
    margin-bottom: 20px;
    border-bottom: 2px solid #eee;
    padding-bottom: 15px;
}
h2 {
    /*color: #d35400;  */ /* 使用強調色標示重點章節 */
	color: #2874a6;
    font-size: 1.6rem;
    margin-top: 40px;
    margin-bottom: 15px;
}
h3 {
    font-size: 1.3rem;
    color: #5f5cDD;
    margin-top: 25px;
}
h4 {
    font-size: 1.2rem;
    color: #272727;
    margin-top: 25px;
}
p {
    margin-bottom: 20px;
    font-size: 1.1rem;
}
ul {
    background-color: #f8f9fa;
    padding: 20px 40px;
    border-left: 5px solid #d35400;
    margin-bottom: 25px;
}
li {
    margin-bottom: 10px;
}
strong {
    color: #c0392b;
    font-weight: 700;
}
.bc {
    color: #cccccc;
}
.quote {
    font-weight: 700;
	font-size: 1.1rem;
    color: #044F0C;
    background: #f0f0f0;
    padding: 15px;
    border-radius: 4px;
    margin: 20px 0;
    text-align: center;
}
.nav-links {
    margin-top: 50px;
    padding-top: 20px;
    border-top: 1px solid #eee;
    display: flex;
    justify-content: space-between;
}
.nav-links a {
    text-decoration: none;
    color: #2970FF;
    font-weight: bold;
}
.poet {
    font-family: "KaiTi", "BiauKai", serif;
    font-size: 1.2rem;
    color: #555;
    text-align: center;
    margin: 30px 0;
    padding: 20px;
    background: #eaeaea;
    border-radius: 8px;
}
/*
.intro-box {
    background-color: #eaf2f8;
    padding: 20px;
    border-radius: 6px;
    margin-bottom: 30px;
    color: #34495e;
    font-style: italic;
}
*/
.intro-box {
    background-color: #d6eaf8;
    padding: 20px;
    border-radius: 6px;
    margin-bottom: 30px;
    border-left: 5px solid #2e86c1;
    font-style: italic;
    color: #154360;
}
.tips {
    background: #fff8e1;
    border: 1px solid #ffe082;
    padding: 15px;
    border-radius: 4px;
    margin: 20px 0;
    font-size: 0.95em;
}
.highlight-box {
    background-color: #fef9e7;
    padding: 20px;
    border-radius: 6px;
    margin: 25px 0;
    border-left: 5px solid #f1c40f;
    color: #292d2f;
}
/*
.concept-visual {
    background: #f4f6f7;
    padding: 20px;
    text-align: center;
    border-radius: 8px;
    margin: 20px 0;
    border: 1px dashed #bdc3c7;
}
*/
.concept-visual {
    display: flex;
    align-items: center;
    justify-content: center;
    background: #f4f6f7;
    padding: 20px;
    border-radius: 8px;
    margin: 20px 0;
    gap: 15px;
}
.concept-visual span {
    display: inline-block;
    background: #fff;
    padding: 10px 20px;
    margin: 5px;
    border-radius: 20px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    font-weight: bold;
    color: #2c3e50;
}
.moon {
    font-size: 4rem;
    text-shadow: 0 0 20px rgba(255, 255, 255, 0.8);
    margin-bottom: 10px;
    display: block;
}
.card {
    background: #fff;
    padding: 15px;
    border-radius: 5px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    text-align: center;
    width: 120px;
}
.card-icon { font-size: 2rem; display: block; margin-bottom: 5px; }
.plus, .equal { font-size: 1.5rem; color: #7f8c8d; }
.operator {
    font-size: 2rem;
    color: #7f8c8d;
}
.star-concept {
    display: flex;
    justify-content: space-around;
    margin: 30px 0;
    flex-wrap: wrap;
    gap: 15px;
}
.star-grid {
    display: flex;
    justify-content: space-between;
    gap: 15px;
    margin: 30px 0;
    flex-wrap: wrap;
}
.star-card {
    background: #fff;
    border: 2px solid #fcf3cf;
    padding: 15px;
    border-radius: 8px;
    width: 45%;
    text-align: center;
    box-shadow: 0 2px 5px rgba(0,0,0,0.05);
}
.purple-border { border-color: #8e44ad; }
.gold-border { border-color: #f1c40f; }
.star-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 15px;
    margin: 20px 0;
}
.star-item {
    background: #f8f9fa;
    padding: 15px;
    border-radius: 5px;
    border-left: 4px solid #aaa;
}
.star-item strong {
    display: block;
    color: #2980b9;
    margin-bottom: 5px;
}
.star-triangle {
    display: flex;
    justify-content: space-around;
    flex-wrap: wrap;
    gap: 15px;
    margin: 30px 0;
}
.star-compare {
    display: flex;
    justify-content: space-around;
    margin: 30px 0;
    gap: 15px;
    flex-wrap: wrap;
}
.visual-concept {
    display: flex;
    align-items: center;
    justify-content: center;
    background: #f5eccc;
    color: #111;
    padding: 20px;
    border-radius: 8px;
    margin: 20px 0;
    gap: 20px;
}
.visual-concept div {
    text-align: center;
}
.arrow {
    font-size: 2rem;
    color: #834c12;
}
.diagram {
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 30px 0;
    gap: 20px;
}
.diagram-box {
    background: #fff;
    border: 2px solid #d7bde2;
    padding: 20px;
    border-radius: 10px;
    text-align: center;
    width: 150px;
}
.diagram-arrow {
    font-size: 2rem;
    color: #8e44ad;
}
.concept-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin: 30px 0;
}
.concept-item {
    background: #fdfefe;
    padding: 15px;
    border: 1px solid #a2d9ce;
    border-radius: 8px;
    text-align: center;
}
.comparison-table {
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0;
}
.comparison-table th, .comparison-table td {
    border: 1px solid #a2d9ce;
    padding: 12px;
    text-align: left;
}
.comparison-table th {
    background-color: #a2d9ce;
    color: #0b5345;
}
.concept-card {
    background: #fff;
    padding: 20px;
    border: 2px solid #fadbd8;
    border-radius: 10px;
    text-align: center;
}
.concept-card h4 {
    font-size: 1.5rem;
    margin: 0 0 10px 0;
    color: #c0392b;
}
.plus-sign {
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: #555;
}
.star-badge {
    display: inline-block;
    background: #2ecc71;
    color: white;
    padding: 10px 20px;
    border-radius: 50px;
    font-weight: bold;
    font-size: 1.2rem;
    margin: 20px 0;
    box-shadow: 0 4px 10px rgba(46, 204, 113, 0.3);
}
.equation-box {
    background: #2c3e50;
    color: #fff;
    padding: 20px;
    border-radius: 8px;
    text-align: center;
    font-size: 1.2rem;
    margin: 20px 0;
    box-shadow: 0 4px 10px rgba(0,0,0,0.2);
}
.highlight {
    color: #f1c40f;
    font-weight: bold;
}
.sandwich-diagram {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
    margin: 30px 0;
    flex-wrap: wrap;
}
.side-palace {
    background: #b4d2de;
    color: #4a235a;
    padding: 15px;
    border-radius: 8px;
    text-align: center;
    flex: 1;
    min-width: 120px;
}
.main-palace {
    background: #f0f0f0;
    border: 3px solid #f1c40f; /* 金色邊框，突顯被夾的主角 */
    padding: 25px;
    border-radius: 12px;
    text-align: center;
    flex: 1.2;
    min-width: 140px;
    box-shadow: 0 4px 10px rgba(0,0,0,0.1);
}
.main-person {
    background: #fff;
    border: 2px dashed #3498db;
    padding: 20px;
    border-radius: 10px;
    text-align: center;
    min-width: 150px;
}
.main-star {
    background: #fff;
    border: 3px solid #f39c12; /* 金色邊框，象徵核心 */
    padding: 25px;
    border-radius: 10px;
    text-align: center;
    min-width: 160px;
    font-weight: bold;
}

@media (max-width: 600px) {
    article { padding: 20px; }
    h1 { font-size: 1.8rem; }
}