:root {
    --color-water-deep: #0a0e14;
    --color-water-flow: #1a2a3a;
    --color-gold-bright: #e0e0e0;
    --color-gold-accent: #d4af37;
    --color-text-main: #f0f0f0;
    --color-text-muted: #a0a0a0;
    --transition-speed: 0.4s;
}

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

body {
    font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans CN", sans-serif;
    background-color: var(--color-water-deep);
    background: radial-gradient(circle at center, var(--color-water-flow) 0%, var(--color-water-deep) 100%);
    color: var(--color-text-main);
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.container {
    max-width: 600px;
    margin: 0 auto;
    padding: 40px 20px;
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.quiz-card {
    background: rgba(255, 255, 255, 0.03);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(212, 175, 55, 0.1);
    border-radius: 20px;
    padding: 30px;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.5);
    transition: all var(--transition-speed) ease;
    display: none;
}

.quiz-card.active {
    display: block;
    animation: fadeIn 0.6s ease forwards;
}

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

h1, h2 {
    font-weight: 600;
    color: var(--color-gold-bright);
    margin-bottom: 20px;
    text-align: center;
}

.desc {
    font-weight: 300;
    color: var(--color-text-muted);
    margin-bottom: 30px;
    text-align: center;
    font-size: 0.95rem;
}

.options-grid {
    display: grid;
    gap: 15px;
}

.option-btn {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--color-text-main);
    padding: 15px 20px;
    border-radius: 12px;
    cursor: pointer;
    text-align: left;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    font-size: 1rem;
}

.option-btn i {
    margin-right: 15px;
    width: 24px;
    text-align: center;
    color: var(--color-gold-accent);
}

.option-btn:hover {
    background: rgba(212, 175, 55, 0.1);
    border-color: var(--color-gold-accent);
    transform: translateX(5px);
}

.nav-controls {
    margin-top: 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.btn-text {
    background: none;
    border: none;
    color: var(--color-text-muted);
    cursor: pointer;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 5px;
}

.btn-text:hover { color: var(--color-gold-accent); }

.recommendation {
    background: rgba(212, 175, 55, 0.05);
    border-left: 4px solid var(--color-gold-accent);
    padding: 20px;
    margin: 20px 0;
    border-radius: 0 10px 10px 0;
}

.recommendation h3 {
    font-size: 1.1rem;
    margin-bottom: 10px;
    color: var(--color-gold-accent);
}

.cta-btn {
    display: block;
    width: 100%;
    background: linear-gradient(135deg, #d4af37, #b8860b);
    color: #000;
    text-align: center;
    padding: 18px;
    border-radius: 12px;
    text-decoration: none;
    font-weight: 600;
    margin-top: 25px;
    box-shadow: 0 5px 15px rgba(212, 175, 55, 0.3);
}

footer {
    padding: 30px;
    text-align: center;
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.2);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

footer a { color: rgba(255, 255, 255, 0.4); text-decoration: none; margin: 0 5px; }
footer a:hover { color: var(--color-gold-accent); }