:root {
    --primary-color: #8B7355;
    --secondary-color: #D2B48C;
    --text-color: #4A4A4A;
    --background-color: #F5F5F0;
    --accent-color: #A67B5B;
    --light-accent: #E8DFD8;
    --border-radius: 8px;
    --transition: all 0.3s ease;
}

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

body {
    font-family: "PingFang SC", "Microsoft YaHei", sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--background-color);
    background-image: 
        linear-gradient(rgba(245, 245, 240, 0.95), rgba(245, 245, 240, 0.95)),
        url('data:image/svg+xml,<svg width="40" height="40" viewBox="0 0 40 40" xmlns="http://www.w3.org/2000/svg"><path d="M0 0h40v40H0z" fill="none"/><circle cx="20" cy="20" r="1" fill="%23A67B5B" opacity="0.1"/></svg>');
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

header {
    text-align: center;
    padding: 4rem 1rem;
    background: linear-gradient(to bottom, var(--light-accent), var(--background-color));
    margin-bottom: 2rem;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

h1 {
    color: var(--primary-color);
    font-size: 2.5rem;
    margin-bottom: 0.8rem;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.1);
}

.subtitle {
    color: var(--accent-color);
    font-size: 1.2rem;
    opacity: 0.9;
}

main {
    max-width: 1200px;
    padding: 0 1rem;
    flex: 1;
}

section {
    background: white;
    border-radius: var(--border-radius);
    padding: 1.5rem;
    margin-bottom: 2rem;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    border: 1px solid rgba(166, 123, 91, 0.1);
}

h2 {
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    font-size: 1.8rem;
    border-bottom: 2px solid var(--light-accent);
    padding-bottom: 0.8rem;
}

h3 {
    color: var(--accent-color);
    margin-bottom: 1.2rem;
    font-size: 1.4rem;
}

.test-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.test-card {
    background: white;
    border: 1px solid var(--light-accent);
    border-radius: var(--border-radius);
    padding: 2rem;
    text-align: center;
    transition: var(--transition);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.test-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.1);
}

.btn {
    display: inline-block;
    background-color: var(--primary-color);
    color: white;
    padding: 1rem 2.5rem;
    border-radius: var(--border-radius);
    text-decoration: none;
    margin-top: 1.5rem;
    transition: var(--transition);
    font-weight: 500;
    border: none;
    cursor: pointer;
}

.btn:hover {
    background-color: var(--accent-color);
    transform: translateY(-2px);
}

.instruction-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2.5rem;
}

ul {
    list-style-position: inside;
    margin-bottom: 1.2rem;
    padding-left: 1rem;
}

li {
    margin-bottom: 0.8rem;
    color: var(--text-color);
    position: relative;
    padding-left: 1.5rem;
    list-style-type: none;
}

li::before {
    content: "•";
    color: var(--accent-color);
    position: absolute;
    left: 0;
    font-size: 1.2em;
}

.disclaimer {
    background-color: var(--light-accent);
    font-size: 0.95rem;
    line-height: 1.8;
}

footer {
    text-align: center;
    padding: 2rem;
    color: var(--accent-color);
    font-size: 0.9rem;
    margin-top: 3rem;
    background-color: white;
    border-top: 1px solid var(--light-accent);
}

/* 测试页面样式 */
.progress-bar {
    width: 100%;
    height: 10px;
    background-color: var(--light-accent);
    border-radius: var(--border-radius);
    margin: 2rem 0;
    overflow: hidden;
}

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

.question-container {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 1rem;
}

.question {
    font-size: 1.4rem;
    margin-bottom: 2.5rem;
    color: var(--primary-color);
    text-align: center;
    font-weight: 500;
    line-height: 1.4;
}

.options {
    display: flex;
    flex-direction: column;
    gap: 1.2rem;
    margin-bottom: 2rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.option {
    width: 100%;
    padding: 1.2rem;
    border: 2px solid var(--light-accent);
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
    font-size: 1.1rem;
    position: relative;
    padding-left: 3rem;
    background-color: white;
    user-select: none;
    outline: none;
}

.option::before {
    content: "";
    position: absolute;
    left: 1.2rem;
    top: 50%;
    transform: translateY(-50%);
    width: 20px;
    height: 20px;
    border: 2px solid var(--accent-color);
    border-radius: 50%;
    transition: var(--transition);
    background-color: white;
    pointer-events: none;
}

.option:hover:not(.selected) {
    background-color: var(--light-accent);
    border-color: var(--accent-color);
}

.option:hover:not(.selected)::before {
    border-color: var(--primary-color);
}

.option.selected {
    border-color: var(--primary-color);
    background-color: var(--light-accent);
}

.option.selected::before {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px var(--light-accent);
}

.navigation {
    display: flex;
    justify-content: space-between;
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid var(--light-accent);
}

.nav-btn {
    background-color: var(--accent-color);
    color: white;
    border: none;
    padding: 1rem 2.5rem;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
    font-size: 1rem;
    font-weight: 500;
}

.nav-btn:disabled {
    background-color: var(--light-accent);
    cursor: not-allowed;
    opacity: 0.7;
}

.nav-btn:not(:disabled):hover {
    background-color: var(--primary-color);
    transform: translateY(-2px);
}

/* 结果页面样式 */
.result-content {
    text-align: center;
    padding: 1rem;
    max-width: 800px;
    margin: 0 auto;
}

.result-type {
    font-size: 1.8rem;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    font-weight: bold;
}

.result-analysis {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    line-height: 1.8;
}

.result-details {
    background-color: var(--light-accent);
    padding: 1.5rem 2rem;
    border-radius: var(--border-radius);
    margin: 2rem auto;
    max-width: 400px;
    text-align: left;
}

.result-details p {
    margin: 0.5rem 0;
    font-size: 1.1rem;
    color: var(--text-color);
}

.result-suggestion {
    text-align: left;
    margin: 2rem auto;
    max-width: 600px;
    background-color: white;
    padding: 1.5rem;
    border-radius: var(--border-radius);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.result-suggestion h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-size: 1.4rem;
}

.result-suggestion p {
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.result-suggestion ul {
    padding-left: 0;
}

.result-suggestion li {
    margin-bottom: 1rem;
    padding-left: 2rem;
}

.result-suggestion li::before {
    content: "•";
    color: var(--accent-color);
    position: absolute;
    left: 0.5rem;
    font-size: 1.2em;
}

.result-actions {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    margin-top: 2.5rem;
}

.result-actions .btn,
.result-actions .nav-btn {
    min-width: 140px;
    padding: 1rem 2rem;
    font-size: 1.1rem;
    height: 48px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin: 0;
    background-color: var(--primary-color);
}

.result-actions .nav-btn {
    background-color: var(--accent-color);
}

.result-actions .btn:hover,
.result-actions .nav-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

/* 响应式设计 */
@media (max-width: 768px) {
    h1 {
        font-size: 2rem;
    }
    
    .test-cards {
        grid-template-columns: 1fr;
    }
    
    section {
        padding: 1.5rem;
    }

    .question {
        font-size: 1.2rem;
    }

    .option {
        font-size: 1rem;
    }

    .nav-btn {
        padding: 0.8rem 1.5rem;
    }
}